o Mic - Mic (and optional Jack)
o Line - Line Input/Output (and optional Jack)
o Speaker - Speaker
+ o Supply - Power or clock supply widget used by other widgets.
o Pre - Special PRE widget (exec before all others)
o Post - Special POST widget (exec after all others)
/* DAI capabilities */
struct snd_soc_pcm_stream capture;
struct snd_soc_pcm_stream playback;
+ unsigned int symmetric_rates:1;
/* DAI runtime info */
struct snd_pcm_runtime *runtime;
#define SND_SOC_DAPM_DAC(wname, stname, wreg, wshift, winvert) \
{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
.shift = wshift, .invert = winvert}
+#define SND_SOC_DAPM_DAC_E(wname, stname, wreg, wshift, winvert, \
+ wevent, wflags) \
+{ .id = snd_soc_dapm_dac, .name = wname, .sname = stname, .reg = wreg, \
+ .shift = wshift, .invert = winvert, \
+ .event = wevent, .event_flags = wflags}
#define SND_SOC_DAPM_ADC(wname, stname, wreg, wshift, winvert) \
{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
.shift = wshift, .invert = winvert}
+#define SND_SOC_DAPM_ADC_E(wname, stname, wreg, wshift, winvert, \
+ wevent, wflags) \
+{ .id = snd_soc_dapm_adc, .name = wname, .sname = stname, .reg = wreg, \
+ .shift = wshift, .invert = winvert, \
+ .event = wevent, .event_flags = wflags}
-/* generic register modifier widget */
+/* generic widgets */
#define SND_SOC_DAPM_REG(wid, wname, wreg, wshift, wmask, won_val, woff_val) \
{ .id = wid, .name = wname, .kcontrols = NULL, .num_kcontrols = 0, \
.reg = -((wreg) + 1), .shift = wshift, .mask = wmask, \
.on_val = won_val, .off_val = woff_val, .event = dapm_reg_event, \
.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD}
+#define SND_SOC_DAPM_SUPPLY(wname, wreg, wshift, winvert, wevent, wflags) \
+{ .id = snd_soc_dapm_supply, .name = wname, .reg = wreg, \
+ .shift = wshift, .invert = winvert, .event = wevent, \
+ .event_flags = wflags}
/* dapm kcontrol types */
#define SOC_DAPM_SINGLE(xname, reg, shift, max, invert) \
snd_soc_dapm_vmid, /* codec bias/vmid - to minimise pops */
snd_soc_dapm_pre, /* machine specific pre widget - exec first */
snd_soc_dapm_post, /* machine specific post widget - exec last */
+ snd_soc_dapm_supply, /* power/clock supply */
};
/*
unsigned char suspend:1; /* was active before suspend */
unsigned char pmdown:1; /* waiting for timeout */
+ int (*power_check)(struct snd_soc_dapm_widget *w);
+
/* external events */
unsigned short event_flags; /* flags to specify event types */
int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);
.info = snd_soc_info_volsw, \
.get = xhandler_get, .put = xhandler_put, \
.private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
+#define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\
+ xhandler_get, xhandler_put) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
+ .info = snd_soc_info_volsw, \
+ .get = xhandler_get, .put = xhandler_put, \
+ .private_value = (unsigned long)&(struct soc_mixer_control) \
+ {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
+ .max = xmax, .invert = xinvert} }
#define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
xhandler_get, xhandler_put, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
/* codec/machine specific init - e.g. add machine controls */
int (*init)(struct snd_soc_codec *codec);
+ /* Symmetry requirements */
+ unsigned int symmetric_rates:1;
+
+ /* Symmetry data - only valid if symmetry is being enforced */
+ unsigned int rate;
+
/* DAI pcm */
struct snd_pcm *pcm;
};
source "sound/soc/omap/Kconfig"
source "sound/soc/pxa/Kconfig"
source "sound/soc/s3c24xx/Kconfig"
+source "sound/soc/s6000/Kconfig"
source "sound/soc/sh/Kconfig"
# Supported codecs
obj-$(CONFIG_SND_SOC) += omap/
obj-$(CONFIG_SND_SOC) += pxa/
obj-$(CONFIG_SND_SOC) += s3c24xx/
+obj-$(CONFIG_SND_SOC) += s6000/
obj-$(CONFIG_SND_SOC) += sh/
select SND_SOC_WM8753 if SND_SOC_I2C_AND_SPI
select SND_SOC_WM8900 if I2C
select SND_SOC_WM8903 if I2C
+ select SND_SOC_WM8940 if I2C
+ select SND_SOC_WM8960 if I2C
select SND_SOC_WM8971 if I2C
+ select SND_SOC_WM8988 if SND_SOC_I2C_AND_SPI
select SND_SOC_WM8990 if I2C
select SND_SOC_WM9705 if SND_SOC_AC97_BUS
select SND_SOC_WM9712 if SND_SOC_AC97_BUS
config SND_SOC_WM8903
tristate
+config SND_SOC_WM8940
+ tristate
+
+config SND_SOC_WM8960
+ tristate
+
config SND_SOC_WM8971
tristate
+config SND_SOC_WM8988
+ tristate
+
config SND_SOC_WM8990
tristate
snd-soc-wm8753-objs := wm8753.o
snd-soc-wm8900-objs := wm8900.o
snd-soc-wm8903-objs := wm8903.o
+snd-soc-wm8940-objs := wm8940.o
+snd-soc-wm8960-objs := wm8960.o
snd-soc-wm8971-objs := wm8971.o
+snd-soc-wm8988-objs := wm8988.o
snd-soc-wm8990-objs := wm8990.o
snd-soc-wm9705-objs := wm9705.o
snd-soc-wm9712-objs := wm9712.o
obj-$(CONFIG_SND_SOC_WM8900) += snd-soc-wm8900.o
obj-$(CONFIG_SND_SOC_WM8903) += snd-soc-wm8903.o
obj-$(CONFIG_SND_SOC_WM8971) += snd-soc-wm8971.o
+obj-$(CONFIG_SND_SOC_WM8940) += snd-soc-wm8940.o
+obj-$(CONFIG_SND_SOC_WM8960) += snd-soc-wm8960.o
+obj-$(CONFIG_SND_SOC_WM8988) += snd-soc-wm8988.o
obj-$(CONFIG_SND_SOC_WM8990) += snd-soc-wm8990.o
obj-$(CONFIG_SND_SOC_WM9705) += snd-soc-wm9705.o
obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o
unsigned int mclk; /* Input frequency of the MCLK pin */
unsigned int mode; /* The mode (I2S or left-justified) */
unsigned int slave_mode;
+ unsigned int manual_mute;
};
/**
}
/**
- * cs4270_mute - enable/disable the CS4270 external mute
+ * cs4270_dai_mute - enable/disable the CS4270 external mute
* @dai: the SOC DAI
* @mute: 0 = disable mute, 1 = enable mute
*
* board does not have the MUTEA or MUTEB pins connected to such circuitry,
* then this function will do nothing.
*/
-static int cs4270_mute(struct snd_soc_dai *dai, int mute)
+static int cs4270_dai_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
+ struct cs4270_private *cs4270 = codec->private_data;
int reg6;
reg6 = snd_soc_read(codec, CS4270_MUTE);
if (mute)
reg6 |= CS4270_MUTE_DAC_A | CS4270_MUTE_DAC_B;
- else
+ else {
reg6 &= ~(CS4270_MUTE_DAC_A | CS4270_MUTE_DAC_B);
+ reg6 |= cs4270->manual_mute;
+ }
return snd_soc_write(codec, CS4270_MUTE, reg6);
}
+/**
+ * cs4270_soc_put_mute - put callback for the 'Master Playback switch'
+ * alsa control.
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * This function basically passes the arguments on to the generic
+ * snd_soc_put_volsw() function and saves the mute information in
+ * our private data structure. This is because we want to prevent
+ * cs4270_dai_mute() neglecting the user's decision to manually
+ * mute the codec's output.
+ *
+ * Returns 0 for success.
+ */
+static int cs4270_soc_put_mute(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct cs4270_private *cs4270 = codec->private_data;
+ int left = !ucontrol->value.integer.value[0];
+ int right = !ucontrol->value.integer.value[1];
+
+ cs4270->manual_mute = (left ? CS4270_MUTE_DAC_A : 0) |
+ (right ? CS4270_MUTE_DAC_B : 0);
+
+ return snd_soc_put_volsw(kcontrol, ucontrol);
+}
+
/* A list of non-DAPM controls that the CS4270 supports */
static const struct snd_kcontrol_new cs4270_snd_controls[] = {
SOC_DOUBLE_R("Master Playback Volume",
SOC_SINGLE("Zero Cross Switch", CS4270_TRANS, 5, 1, 0),
SOC_SINGLE("Popguard Switch", CS4270_MODE, 0, 1, 1),
SOC_SINGLE("Auto-Mute Switch", CS4270_MUTE, 5, 1, 0),
- SOC_DOUBLE("Master Capture Switch", CS4270_MUTE, 3, 4, 1, 0)
+ SOC_DOUBLE("Master Capture Switch", CS4270_MUTE, 3, 4, 1, 1),
+ SOC_DOUBLE_EXT("Master Playback Switch", CS4270_MUTE, 0, 1, 1, 1,
+ snd_soc_get_volsw, cs4270_soc_put_mute),
};
/*
.hw_params = cs4270_hw_params,
.set_sysclk = cs4270_set_dai_sysclk,
.set_fmt = cs4270_set_dai_fmt,
- .digital_mute = cs4270_mute,
+ .digital_mute = cs4270_dai_mute,
};
struct snd_soc_dai cs4270_dai = {
case SND_SOC_DAIFMT_I2S:
iface_reg |= TLV320AIC23_FOR_I2S;
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface_reg |= TLV320AIC23_LRP_ON;
case SND_SOC_DAIFMT_DSP_B:
iface_reg |= TLV320AIC23_FOR_DSP;
break;
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
+
+ unsigned int configured;
+ unsigned int rate;
+ unsigned int sample_bits;
+ unsigned int channels;
};
/*
}
/* Earpiece */
-static const char *twl4030_earpiece_texts[] =
- {"Off", "DACL1", "DACL2", "DACR1"};
-
-static const unsigned int twl4030_earpiece_values[] =
- {0x0, 0x1, 0x2, 0x4};
-
-static const struct soc_enum twl4030_earpiece_enum =
- SOC_VALUE_ENUM_SINGLE(TWL4030_REG_EAR_CTL, 1, 0x7,
- ARRAY_SIZE(twl4030_earpiece_texts),
- twl4030_earpiece_texts,
- twl4030_earpiece_values);
-
-static const struct snd_kcontrol_new twl4030_dapm_earpiece_control =
-SOC_DAPM_VALUE_ENUM("Route", twl4030_earpiece_enum);
+static const struct snd_kcontrol_new twl4030_dapm_earpiece_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_EAR_CTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_EAR_CTL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_EAR_CTL, 2, 1, 0),
+ SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_EAR_CTL, 3, 1, 0),
+};
/* PreDrive Left */
-static const char *twl4030_predrivel_texts[] =
- {"Off", "DACL1", "DACL2", "DACR2"};
-
-static const unsigned int twl4030_predrivel_values[] =
- {0x0, 0x1, 0x2, 0x4};
-
-static const struct soc_enum twl4030_predrivel_enum =
- SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDL_CTL, 1, 0x7,
- ARRAY_SIZE(twl4030_predrivel_texts),
- twl4030_predrivel_texts,
- twl4030_predrivel_values);
-
-static const struct snd_kcontrol_new twl4030_dapm_predrivel_control =
-SOC_DAPM_VALUE_ENUM("Route", twl4030_predrivel_enum);
+static const struct snd_kcontrol_new twl4030_dapm_predrivel_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDL_CTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PREDL_CTL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDL_CTL, 2, 1, 0),
+ SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDL_CTL, 3, 1, 0),
+};
/* PreDrive Right */
-static const char *twl4030_predriver_texts[] =
- {"Off", "DACR1", "DACR2", "DACL2"};
-
-static const unsigned int twl4030_predriver_values[] =
- {0x0, 0x1, 0x2, 0x4};
-
-static const struct soc_enum twl4030_predriver_enum =
- SOC_VALUE_ENUM_SINGLE(TWL4030_REG_PREDR_CTL, 1, 0x7,
- ARRAY_SIZE(twl4030_predriver_texts),
- twl4030_predriver_texts,
- twl4030_predriver_values);
-
-static const struct snd_kcontrol_new twl4030_dapm_predriver_control =
-SOC_DAPM_VALUE_ENUM("Route", twl4030_predriver_enum);
+static const struct snd_kcontrol_new twl4030_dapm_predriver_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_PREDR_CTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PREDR_CTL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PREDR_CTL, 2, 1, 0),
+ SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PREDR_CTL, 3, 1, 0),
+};
/* Headset Left */
-static const char *twl4030_hsol_texts[] =
- {"Off", "DACL1", "DACL2"};
-
-static const struct soc_enum twl4030_hsol_enum =
- SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 1,
- ARRAY_SIZE(twl4030_hsol_texts),
- twl4030_hsol_texts);
-
-static const struct snd_kcontrol_new twl4030_dapm_hsol_control =
-SOC_DAPM_ENUM("Route", twl4030_hsol_enum);
+static const struct snd_kcontrol_new twl4030_dapm_hsol_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_HS_SEL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_HS_SEL, 2, 1, 0),
+};
/* Headset Right */
-static const char *twl4030_hsor_texts[] =
- {"Off", "DACR1", "DACR2"};
-
-static const struct soc_enum twl4030_hsor_enum =
- SOC_ENUM_SINGLE(TWL4030_REG_HS_SEL, 4,
- ARRAY_SIZE(twl4030_hsor_texts),
- twl4030_hsor_texts);
-
-static const struct snd_kcontrol_new twl4030_dapm_hsor_control =
-SOC_DAPM_ENUM("Route", twl4030_hsor_enum);
+static const struct snd_kcontrol_new twl4030_dapm_hsor_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_HS_SEL, 3, 1, 0),
+ SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_HS_SEL, 4, 1, 0),
+ SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_HS_SEL, 5, 1, 0),
+};
/* Carkit Left */
-static const char *twl4030_carkitl_texts[] =
- {"Off", "DACL1", "DACL2"};
-
-static const struct soc_enum twl4030_carkitl_enum =
- SOC_ENUM_SINGLE(TWL4030_REG_PRECKL_CTL, 1,
- ARRAY_SIZE(twl4030_carkitl_texts),
- twl4030_carkitl_texts);
-
-static const struct snd_kcontrol_new twl4030_dapm_carkitl_control =
-SOC_DAPM_ENUM("Route", twl4030_carkitl_enum);
+static const struct snd_kcontrol_new twl4030_dapm_carkitl_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKL_CTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioL1", TWL4030_REG_PRECKL_CTL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioL2", TWL4030_REG_PRECKL_CTL, 2, 1, 0),
+};
/* Carkit Right */
-static const char *twl4030_carkitr_texts[] =
- {"Off", "DACR1", "DACR2"};
-
-static const struct soc_enum twl4030_carkitr_enum =
- SOC_ENUM_SINGLE(TWL4030_REG_PRECKR_CTL, 1,
- ARRAY_SIZE(twl4030_carkitr_texts),
- twl4030_carkitr_texts);
-
-static const struct snd_kcontrol_new twl4030_dapm_carkitr_control =
-SOC_DAPM_ENUM("Route", twl4030_carkitr_enum);
+static const struct snd_kcontrol_new twl4030_dapm_carkitr_controls[] = {
+ SOC_DAPM_SINGLE("Voice", TWL4030_REG_PRECKR_CTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("AudioR1", TWL4030_REG_PRECKR_CTL, 1, 1, 0),
+ SOC_DAPM_SINGLE("AudioR2", TWL4030_REG_PRECKR_CTL, 2, 1, 0),
+};
/* Handsfree Left */
static const char *twl4030_handsfreel_texts[] =
- {"Voice", "DACL1", "DACL2", "DACR2"};
+ {"Voice", "AudioL1", "AudioL2", "AudioR2"};
static const struct soc_enum twl4030_handsfreel_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HFL_CTL, 0,
/* Handsfree Right */
static const char *twl4030_handsfreer_texts[] =
- {"Voice", "DACR1", "DACR2", "DACL2"};
+ {"Voice", "AudioR1", "AudioR2", "AudioL2"};
static const struct soc_enum twl4030_handsfreer_enum =
SOC_ENUM_SINGLE(TWL4030_REG_HFR_CTL, 0,
*/
static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
+/*
+ * Voice Downlink GAIN volume control:
+ * from -37 to 12 dB in 1 dB steps (mute instead of -37 dB)
+ */
+static DECLARE_TLV_DB_SCALE(digital_voice_downlink_tlv, -3700, 100, 1);
+
/*
* Analog playback gain
* -24 dB to 12 dB in 2 dB steps
TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
1, 1, 0),
+ /* Common voice downlink gain controls */
+ SOC_SINGLE_TLV("DAC Voice Digital Downlink Volume",
+ TWL4030_REG_VRXPGA, 0, 0x31, 0, digital_voice_downlink_tlv),
+
+ SOC_SINGLE_TLV("DAC Voice Analog Downlink Volume",
+ TWL4030_REG_VDL_APGA_CTL, 3, 0x12, 1, analog_tlv),
+
+ SOC_SINGLE("DAC Voice Analog Downlink Switch",
+ TWL4030_REG_VDL_APGA_CTL, 1, 1, 0),
+
/* Separate output gain controls */
SOC_DOUBLE_R_TLV_TWL4030("PreDriv Playback Volume",
TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DAC Left2", "Left Rear Playback",
SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_DAC("DAC Voice", "Voice Playback",
+ TWL4030_REG_AVDAC_CTL, 4, 0),
/* Analog PGAs */
SND_SOC_DAPM_PGA("ARXR1_APGA", TWL4030_REG_ARXR1_APGA_CTL,
0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ARXL2_APGA", TWL4030_REG_ARXL2_APGA_CTL,
0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("VDL_APGA", TWL4030_REG_VDL_APGA_CTL,
+ 0, 0, NULL, 0),
/* Analog bypasses */
SND_SOC_DAPM_SWITCH_E("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
SND_SOC_DAPM_MIXER("Analog L2 Playback Mixer", TWL4030_REG_AVDAC_CTL,
3, 0, NULL, 0),
- /* Output MUX controls */
+ /* Output MIXER controls */
/* Earpiece */
- SND_SOC_DAPM_VALUE_MUX("Earpiece Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_earpiece_control),
+ SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_earpiece_controls[0],
+ ARRAY_SIZE(twl4030_dapm_earpiece_controls)),
/* PreDrivL/R */
- SND_SOC_DAPM_VALUE_MUX("PredriveL Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_predrivel_control),
- SND_SOC_DAPM_VALUE_MUX("PredriveR Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_predriver_control),
+ SND_SOC_DAPM_MIXER("PredriveL Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_predrivel_controls[0],
+ ARRAY_SIZE(twl4030_dapm_predrivel_controls)),
+ SND_SOC_DAPM_MIXER("PredriveR Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_predriver_controls[0],
+ ARRAY_SIZE(twl4030_dapm_predriver_controls)),
/* HeadsetL/R */
- SND_SOC_DAPM_MUX_E("HeadsetL Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_hsol_control, headsetl_event,
- SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_MUX("HeadsetR Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_hsor_control),
+ SND_SOC_DAPM_MIXER_E("HeadsetL Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_hsol_controls[0],
+ ARRAY_SIZE(twl4030_dapm_hsol_controls), headsetl_event,
+ SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MIXER("HeadsetR Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_hsor_controls[0],
+ ARRAY_SIZE(twl4030_dapm_hsor_controls)),
/* CarkitL/R */
- SND_SOC_DAPM_MUX("CarkitL Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_carkitl_control),
- SND_SOC_DAPM_MUX("CarkitR Mux", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_carkitr_control),
+ SND_SOC_DAPM_MIXER("CarkitL Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_carkitl_controls[0],
+ ARRAY_SIZE(twl4030_dapm_carkitl_controls)),
+ SND_SOC_DAPM_MIXER("CarkitR Mixer", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_carkitr_controls[0],
+ ARRAY_SIZE(twl4030_dapm_carkitr_controls)),
+
+ /* Output MUX controls */
/* HandsfreeL/R */
SND_SOC_DAPM_MUX_E("HandsfreeL Mux", TWL4030_REG_HFL_CTL, 5, 0,
&twl4030_dapm_handsfreel_control, handsfree_event,
{"ARXL2_APGA", NULL, "Analog L2 Playback Mixer"},
{"ARXR2_APGA", NULL, "Analog R2 Playback Mixer"},
+ {"VDL_APGA", NULL, "DAC Voice"},
+
/* Internal playback routings */
/* Earpiece */
- {"Earpiece Mux", "DACL1", "ARXL1_APGA"},
- {"Earpiece Mux", "DACL2", "ARXL2_APGA"},
- {"Earpiece Mux", "DACR1", "ARXR1_APGA"},
+ {"Earpiece Mixer", "Voice", "VDL_APGA"},
+ {"Earpiece Mixer", "AudioL1", "ARXL1_APGA"},
+ {"Earpiece Mixer", "AudioL2", "ARXL2_APGA"},
+ {"Earpiece Mixer", "AudioR1", "ARXR1_APGA"},
/* PreDrivL */
- {"PredriveL Mux", "DACL1", "ARXL1_APGA"},
- {"PredriveL Mux", "DACL2", "ARXL2_APGA"},
- {"PredriveL Mux", "DACR2", "ARXR2_APGA"},
+ {"PredriveL Mixer", "Voice", "VDL_APGA"},
+ {"PredriveL Mixer", "AudioL1", "ARXL1_APGA"},
+ {"PredriveL Mixer", "AudioL2", "ARXL2_APGA"},
+ {"PredriveL Mixer", "AudioR2", "ARXR2_APGA"},
/* PreDrivR */
- {"PredriveR Mux", "DACR1", "ARXR1_APGA"},
- {"PredriveR Mux", "DACR2", "ARXR2_APGA"},
- {"PredriveR Mux", "DACL2", "ARXL2_APGA"},
+ {"PredriveR Mixer", "Voice", "VDL_APGA"},
+ {"PredriveR Mixer", "AudioR1", "ARXR1_APGA"},
+ {"PredriveR Mixer", "AudioR2", "ARXR2_APGA"},
+ {"PredriveR Mixer", "AudioL2", "ARXL2_APGA"},
/* HeadsetL */
- {"HeadsetL Mux", "DACL1", "ARXL1_APGA"},
- {"HeadsetL Mux", "DACL2", "ARXL2_APGA"},
+ {"HeadsetL Mixer", "Voice", "VDL_APGA"},
+ {"HeadsetL Mixer", "AudioL1", "ARXL1_APGA"},
+ {"HeadsetL Mixer", "AudioL2", "ARXL2_APGA"},
/* HeadsetR */
- {"HeadsetR Mux", "DACR1", "ARXR1_APGA"},
- {"HeadsetR Mux", "DACR2", "ARXR2_APGA"},
+ {"HeadsetR Mixer", "Voice", "VDL_APGA"},
+ {"HeadsetR Mixer", "AudioR1", "ARXR1_APGA"},
+ {"HeadsetR Mixer", "AudioR2", "ARXR2_APGA"},
/* CarkitL */
- {"CarkitL Mux", "DACL1", "ARXL1_APGA"},
- {"CarkitL Mux", "DACL2", "ARXL2_APGA"},
+ {"CarkitL Mixer", "Voice", "VDL_APGA"},
+ {"CarkitL Mixer", "AudioL1", "ARXL1_APGA"},
+ {"CarkitL Mixer", "AudioL2", "ARXL2_APGA"},
/* CarkitR */
- {"CarkitR Mux", "DACR1", "ARXR1_APGA"},
- {"CarkitR Mux", "DACR2", "ARXR2_APGA"},
+ {"CarkitR Mixer", "Voice", "VDL_APGA"},
+ {"CarkitR Mixer", "AudioR1", "ARXR1_APGA"},
+ {"CarkitR Mixer", "AudioR2", "ARXR2_APGA"},
/* HandsfreeL */
- {"HandsfreeL Mux", "DACL1", "ARXL1_APGA"},
- {"HandsfreeL Mux", "DACL2", "ARXL2_APGA"},
- {"HandsfreeL Mux", "DACR2", "ARXR2_APGA"},
+ {"HandsfreeL Mux", "Voice", "VDL_APGA"},
+ {"HandsfreeL Mux", "AudioL1", "ARXL1_APGA"},
+ {"HandsfreeL Mux", "AudioL2", "ARXL2_APGA"},
+ {"HandsfreeL Mux", "AudioR2", "ARXR2_APGA"},
/* HandsfreeR */
- {"HandsfreeR Mux", "DACR1", "ARXR1_APGA"},
- {"HandsfreeR Mux", "DACR2", "ARXR2_APGA"},
- {"HandsfreeR Mux", "DACL2", "ARXL2_APGA"},
+ {"HandsfreeR Mux", "Voice", "VDL_APGA"},
+ {"HandsfreeR Mux", "AudioR1", "ARXR1_APGA"},
+ {"HandsfreeR Mux", "AudioR2", "ARXR2_APGA"},
+ {"HandsfreeR Mux", "AudioL2", "ARXL2_APGA"},
/* outputs */
{"OUTL", NULL, "ARXL2_APGA"},
{"OUTR", NULL, "ARXR2_APGA"},
- {"EARPIECE", NULL, "Earpiece Mux"},
- {"PREDRIVEL", NULL, "PredriveL Mux"},
- {"PREDRIVER", NULL, "PredriveR Mux"},
- {"HSOL", NULL, "HeadsetL Mux"},
- {"HSOR", NULL, "HeadsetR Mux"},
- {"CARKITL", NULL, "CarkitL Mux"},
- {"CARKITR", NULL, "CarkitR Mux"},
+ {"EARPIECE", NULL, "Earpiece Mixer"},
+ {"PREDRIVEL", NULL, "PredriveL Mixer"},
+ {"PREDRIVER", NULL, "PredriveR Mixer"},
+ {"HSOL", NULL, "HeadsetL Mixer"},
+ {"HSOR", NULL, "HeadsetR Mixer"},
+ {"CARKITL", NULL, "CarkitL Mixer"},
+ {"CARKITR", NULL, "CarkitR Mixer"},
{"HFL", NULL, "HandsfreeL Mux"},
{"HFR", NULL, "HandsfreeR Mux"},
return 0;
}
+static void twl4030_constraints(struct twl4030_priv *twl4030,
+ struct snd_pcm_substream *mst_substream)
+{
+ struct snd_pcm_substream *slv_substream;
+
+ /* Pick the stream, which need to be constrained */
+ if (mst_substream == twl4030->master_substream)
+ slv_substream = twl4030->slave_substream;
+ else if (mst_substream == twl4030->slave_substream)
+ slv_substream = twl4030->master_substream;
+ else /* This should not happen.. */
+ return;
+
+ /* Set the constraints according to the already configured stream */
+ snd_pcm_hw_constraint_minmax(slv_substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ twl4030->rate,
+ twl4030->rate);
+
+ snd_pcm_hw_constraint_minmax(slv_substream->runtime,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ twl4030->sample_bits,
+ twl4030->sample_bits);
+
+ snd_pcm_hw_constraint_minmax(slv_substream->runtime,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ twl4030->channels,
+ twl4030->channels);
+}
+
+/* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
+ * capture has to be enabled/disabled. */
+static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
+ int enable)
+{
+ u8 reg, mask;
+
+ reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION);
+
+ if (direction == SNDRV_PCM_STREAM_PLAYBACK)
+ mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
+ else
+ mask = TWL4030_ATXL2_VTXL_EN | TWL4030_ATXR2_VTXR_EN;
+
+ if (enable)
+ reg |= mask;
+ else
+ reg &= ~mask;
+
+ twl4030_write(codec, TWL4030_REG_OPTION, reg);
+}
+
static int twl4030_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = socdev->card->codec;
struct twl4030_priv *twl4030 = codec->private_data;
- /* If we already have a playback or capture going then constrain
- * this substream to match it.
- */
if (twl4030->master_substream) {
- struct snd_pcm_runtime *master_runtime;
- master_runtime = twl4030->master_substream->runtime;
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE,
- master_runtime->rate,
- master_runtime->rate);
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
- master_runtime->sample_bits,
- master_runtime->sample_bits);
-
twl4030->slave_substream = substream;
- } else
+ /* The DAI has one configuration for playback and capture, so
+ * if the DAI has been already configured then constrain this
+ * substream to match it. */
+ if (twl4030->configured)
+ twl4030_constraints(twl4030, twl4030->master_substream);
+ } else {
+ if (!(twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) &
+ TWL4030_OPTION_1)) {
+ /* In option2 4 channel is not supported, set the
+ * constraint for the first stream for channels, the
+ * second stream will 'inherit' this cosntraint */
+ snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ 2, 2);
+ }
twl4030->master_substream = substream;
+ }
return 0;
}
twl4030->master_substream = twl4030->slave_substream;
twl4030->slave_substream = NULL;
+
+ /* If all streams are closed, or the remaining stream has not yet
+ * been configured than set the DAI as not configured. */
+ if (!twl4030->master_substream)
+ twl4030->configured = 0;
+ else if (!twl4030->master_substream->runtime->channels)
+ twl4030->configured = 0;
+
+ /* If the closing substream had 4 channel, do the necessary cleanup */
+ if (substream->runtime->channels == 4)
+ twl4030_tdm_enable(codec, substream->stream, 0);
}
static int twl4030_hw_params(struct snd_pcm_substream *substream,
struct twl4030_priv *twl4030 = codec->private_data;
u8 mode, old_mode, format, old_format;
- if (substream == twl4030->slave_substream)
- /* Ignoring hw_params for slave substream */
+ /* If the substream has 4 channel, do the necessary setup */
+ if (params_channels(params) == 4) {
+ /* Safety check: are we in the correct operating mode? */
+ if ((twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) &
+ TWL4030_OPTION_1))
+ twl4030_tdm_enable(codec, substream->stream, 1);
+ else
+ return -EINVAL;
+ }
+
+ if (twl4030->configured)
+ /* Ignoring hw_params for already configured DAI */
return 0;
/* bit rate */
/* set CODECPDZ afterwards */
twl4030_codec_enable(codec, 1);
}
+
+ /* Store the important parameters for the DAI configuration and set
+ * the DAI as configured */
+ twl4030->configured = 1;
+ twl4030->rate = params_rate(params);
+ twl4030->sample_bits = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
+ twl4030->channels = params_channels(params);
+
+ /* If both playback and capture streams are open, and one of them
+ * is setting the hw parameters right now (since we are here), set
+ * constraints to the other stream to match the current one. */
+ if (twl4030->slave_substream)
+ twl4030_constraints(twl4030, substream);
+
return 0;
}
case SND_SOC_DAIFMT_I2S:
format |= TWL4030_AIF_FORMAT_CODEC;
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ format |= TWL4030_AIF_FORMAT_TDM;
+ break;
default:
return -EINVAL;
}
return 0;
}
+static int twl4030_voice_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ u8 infreq;
+ u8 mode;
+
+ /* If the system master clock is not 26MHz, the voice PCM interface is
+ * not avilable.
+ */
+ infreq = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL)
+ & TWL4030_APLL_INFREQ;
+
+ if (infreq != TWL4030_APLL_INFREQ_26000KHZ) {
+ printk(KERN_ERR "TWL4030 voice startup: "
+ "MCLK is not 26MHz, call set_sysclk() on init\n");
+ return -EINVAL;
+ }
+
+ /* If the codec mode is not option2, the voice PCM interface is not
+ * avilable.
+ */
+ mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
+ & TWL4030_OPT_MODE;
+
+ if (mode != TWL4030_OPTION_2) {
+ printk(KERN_ERR "TWL4030 voice startup: "
+ "the codec mode is not option2\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ u8 old_mode, mode;
+
+ /* bit rate */
+ old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
+ & ~(TWL4030_CODECPDZ);
+ mode = old_mode;
+
+ switch (params_rate(params)) {
+ case 8000:
+ mode &= ~(TWL4030_SEL_16K);
+ break;
+ case 16000:
+ mode |= TWL4030_SEL_16K;
+ break;
+ default:
+ printk(KERN_ERR "TWL4030 voice hw params: unknown rate %d\n",
+ params_rate(params));
+ return -EINVAL;
+ }
+
+ if (mode != old_mode) {
+ /* change rate and set CODECPDZ */
+ twl4030_codec_enable(codec, 0);
+ twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
+ twl4030_codec_enable(codec, 1);
+ }
+
+ return 0;
+}
+
+static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u8 infreq;
+
+ switch (freq) {
+ case 26000000:
+ infreq = TWL4030_APLL_INFREQ_26000KHZ;
+ break;
+ default:
+ printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n",
+ freq);
+ return -EINVAL;
+ }
+
+ infreq |= TWL4030_APLL_EN;
+ twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
+
+ return 0;
+}
+
+static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u8 old_format, format;
+
+ /* get format */
+ old_format = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF);
+ format = old_format;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFM:
+ format &= ~(TWL4030_VIF_SLAVE_EN);
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ format |= TWL4030_VIF_SLAVE_EN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_IB_NF:
+ format &= ~(TWL4030_VIF_FORMAT);
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ format |= TWL4030_VIF_FORMAT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (format != old_format) {
+ /* change format and set CODECPDZ */
+ twl4030_codec_enable(codec, 0);
+ twl4030_write(codec, TWL4030_REG_VOICE_IF, format);
+ twl4030_codec_enable(codec, 1);
+ }
+
+ return 0;
+}
+
#define TWL4030_RATES (SNDRV_PCM_RATE_8000_48000)
#define TWL4030_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE)
.set_fmt = twl4030_set_dai_fmt,
};
-struct snd_soc_dai twl4030_dai = {
+static struct snd_soc_dai_ops twl4030_dai_voice_ops = {
+ .startup = twl4030_voice_startup,
+ .hw_params = twl4030_voice_hw_params,
+ .set_sysclk = twl4030_voice_set_dai_sysclk,
+ .set_fmt = twl4030_voice_set_dai_fmt,
+};
+
+struct snd_soc_dai twl4030_dai[] = {
+{
.name = "twl4030",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
- .channels_max = 2,
+ .channels_max = 4,
.rates = TWL4030_RATES | SNDRV_PCM_RATE_96000,
.formats = TWL4030_FORMATS,},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
- .channels_max = 2,
+ .channels_max = 4,
.rates = TWL4030_RATES,
.formats = TWL4030_FORMATS,},
.ops = &twl4030_dai_ops,
+},
+{
+ .name = "twl4030 Voice",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .ops = &twl4030_dai_voice_ops,
+},
};
EXPORT_SYMBOL_GPL(twl4030_dai);
codec->read = twl4030_read_reg_cache;
codec->write = twl4030_write;
codec->set_bias_level = twl4030_set_bias_level;
- codec->dai = &twl4030_dai;
- codec->num_dai = 1;
+ codec->dai = twl4030_dai;
+ codec->num_dai = ARRAY_SIZE(twl4030_dai),
codec->reg_cache_size = sizeof(twl4030_reg);
codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
GFP_KERNEL);
static int __init twl4030_modinit(void)
{
- return snd_soc_register_dai(&twl4030_dai);
+ return snd_soc_register_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
}
module_init(twl4030_modinit);
static void __exit twl4030_exit(void)
{
- snd_soc_unregister_dai(&twl4030_dai);
+ snd_soc_unregister_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
}
module_exit(twl4030_exit);
#define TWL4030_SEL_16K 0x04
#define TWL4030_CODECPDZ 0x02
#define TWL4030_OPT_MODE 0x01
+#define TWL4030_OPTION_1 (1 << 0)
+#define TWL4030_OPTION_2 (0 << 0)
+
+/* TWL4030_OPTION (0x02) Fields */
+
+#define TWL4030_ATXL1_EN (1 << 0)
+#define TWL4030_ATXR1_EN (1 << 1)
+#define TWL4030_ATXL2_VTXL_EN (1 << 2)
+#define TWL4030_ATXR2_VTXR_EN (1 << 3)
+#define TWL4030_ARXL1_VRX_EN (1 << 4)
+#define TWL4030_ARXR1_EN (1 << 5)
+#define TWL4030_ARXL2_EN (1 << 6)
+#define TWL4030_ARXR2_EN (1 << 7)
/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */
#define TWL4030_CLK256FS_EN 0x02
#define TWL4030_AIF_EN 0x01
+/* VOICE_IF (0x0F) Fields */
+
+#define TWL4030_VIF_SLAVE_EN 0x80
+#define TWL4030_VIF_DIN_EN 0x40
+#define TWL4030_VIF_DOUT_EN 0x20
+#define TWL4030_VIF_SWAP 0x10
+#define TWL4030_VIF_FORMAT 0x08
+#define TWL4030_VIF_TRI_EN 0x04
+#define TWL4030_VIF_SUB_EN 0x02
+#define TWL4030_VIF_EN 0x01
+
/* EAR_CTL (0x21) */
#define TWL4030_EAR_GAIN 0x30
#define TWL4030_SMOOTH_ANAVOL_EN 0x02
#define TWL4030_DIGMIC_LR_SWAP_EN 0x01
-extern struct snd_soc_dai twl4030_dai;
+#define TWL4030_DAI_HIFI 0
+#define TWL4030_DAI_VOICE 1
+
+extern struct snd_soc_dai twl4030_dai[2];
extern struct snd_soc_codec_device soc_codec_dev_twl4030;
#endif /* End of __TWL4030_AUDIO_H__ */
#define _WM8350_H
#include <sound/soc.h>
+#include <linux/mfd/wm8350/audio.h>
extern struct snd_soc_dai wm8350_dai;
extern struct snd_soc_codec_device soc_codec_dev_wm8350;
int sysclk;
/* Reference counts */
- int charge_pump_users;
int class_w_users;
int playback_active;
int capture_active;
#define WM8903_OUTPUT_INT 0x2
#define WM8903_OUTPUT_IN 0x1
+static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ WARN_ON(event != SND_SOC_DAPM_POST_PMU);
+ mdelay(4);
+
+ return 0;
+}
+
/*
* Event for headphone and line out amplifier power changes. Special
* power up/down sequences are required in order to maximise pop/click
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
u16 val;
u16 reg;
+ u16 dcs_reg;
+ u16 dcs_bit;
int shift;
- u16 cp_reg = wm8903_read(codec, WM8903_CHARGE_PUMP_0);
switch (w->reg) {
case WM8903_POWER_MANAGEMENT_2:
reg = WM8903_ANALOGUE_HP_0;
+ dcs_bit = 0 + w->shift;
break;
case WM8903_POWER_MANAGEMENT_3:
reg = WM8903_ANALOGUE_LINEOUT_0;
+ dcs_bit = 2 + w->shift;
break;
default:
BUG();
/* Short the output */
val &= ~(WM8903_OUTPUT_SHORT << shift);
wm8903_write(codec, reg, val);
-
- wm8903->charge_pump_users++;
-
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
-
- if (wm8903->charge_pump_users == 1) {
- dev_dbg(&i2c->dev, "Enabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg | WM8903_CP_ENA);
- mdelay(4);
- }
}
if (event & SND_SOC_DAPM_POST_PMU) {
val |= (WM8903_OUTPUT_OUT << shift);
wm8903_write(codec, reg, val);
+ /* Enable the DC servo */
+ dcs_reg = wm8903_read(codec, WM8903_DC_SERVO_0);
+ dcs_reg |= dcs_bit;
+ wm8903_write(codec, WM8903_DC_SERVO_0, dcs_reg);
+
/* Remove the short */
val |= (WM8903_OUTPUT_SHORT << shift);
wm8903_write(codec, reg, val);
val &= ~(WM8903_OUTPUT_SHORT << shift);
wm8903_write(codec, reg, val);
+ /* Disable the DC servo */
+ dcs_reg = wm8903_read(codec, WM8903_DC_SERVO_0);
+ dcs_reg &= ~dcs_bit;
+ wm8903_write(codec, WM8903_DC_SERVO_0, dcs_reg);
+
/* Then disable the intermediate and output stages */
val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
WM8903_OUTPUT_IN) << shift);
wm8903_write(codec, reg, val);
}
- if (event & SND_SOC_DAPM_POST_PMD) {
- wm8903->charge_pump_users--;
-
- dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
- wm8903->charge_pump_users);
-
- if (wm8903->charge_pump_users == 0) {
- dev_dbg(&i2c->dev, "Disabling charge pump\n");
- wm8903_write(codec, WM8903_CHARGE_PUMP_0,
- cp_reg & ~WM8903_CP_ENA);
- }
- }
-
return 0;
}
/* ALSA can only do steps of .01dB */
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
+static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
+static const char *sidetone_text[] = {
+ "None", "Left", "Right"
+};
+
+static const struct soc_enum lsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
+
+static const struct soc_enum rsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
+
static const struct snd_kcontrol_new wm8903_snd_controls[] = {
/* Input PGAs - No TLV since the scale depends on PGA mode */
SOC_ENUM("ADC Companding Mode", adc_companding),
SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
+SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
+ 12, 0, digital_sidetone_tlv),
+
/* DAC */
SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
static const struct snd_kcontrol_new rinput_inv_mux =
SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
+static const struct snd_kcontrol_new lsidetone_mux =
+ SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
+
+static const struct snd_kcontrol_new rsidetone_mux =
+ SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
+
static const struct snd_kcontrol_new left_output_mixer[] = {
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
+SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
+SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
+
SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
1, 0, NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
0, 0, NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
NULL, 0, wm8903_output_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
- SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
NULL, 0),
SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
NULL, 0),
+SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
+ wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
+SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
};
static const struct snd_soc_dapm_route intercon[] = {
{ "Right Input PGA", NULL, "Right Input Mode Mux" },
{ "ADCL", NULL, "Left Input PGA" },
+ { "ADCL", NULL, "CLK_DSP" },
{ "ADCR", NULL, "Right Input PGA" },
+ { "ADCR", NULL, "CLK_DSP" },
+
+ { "DACL Sidetone", "Left", "ADCL" },
+ { "DACL Sidetone", "Right", "ADCR" },
+ { "DACR Sidetone", "Left", "ADCL" },
+ { "DACR Sidetone", "Right", "ADCR" },
+
+ { "DACL", NULL, "DACL Sidetone" },
+ { "DACL", NULL, "CLK_DSP" },
+ { "DACR", NULL, "DACR Sidetone" },
+ { "DACR", NULL, "CLK_DSP" },
{ "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
{ "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
{ "ROP", NULL, "Right Speaker PGA" },
{ "RON", NULL, "Right Speaker PGA" },
+
+ { "Left Headphone Output PGA", NULL, "Charge Pump" },
+ { "Right Headphone Output PGA", NULL, "Charge Pump" },
+ { "Left Line Output PGA", NULL, "Charge Pump" },
+ { "Right Line Output PGA", NULL, "Charge Pump" },
};
static int wm8903_add_widgets(struct snd_soc_codec *codec)
wm8903_write(codec, WM8903_CLOCK_RATES_2,
WM8903_CLK_SYS_ENA);
+ /* Change DC servo dither level in startup sequence */
+ wm8903_write(codec, WM8903_WRITE_SEQUENCER_0, 0x11);
+ wm8903_write(codec, WM8903_WRITE_SEQUENCER_1, 0x1257);
+ wm8903_write(codec, WM8903_WRITE_SEQUENCER_2, 0x2);
+
wm8903_run_sequence(codec, 0);
wm8903_sync_reg_cache(codec, codec->reg_cache);
if (wm8903->master_substream) {
master_runtime = wm8903->master_substream->runtime;
- dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
- master_runtime->sample_bits,
- master_runtime->rate);
-
- snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE,
- master_runtime->rate,
- master_runtime->rate);
+ dev_dbg(&i2c->dev, "Constraining to %d bits\n",
+ master_runtime->sample_bits);
snd_pcm_hw_constraint_minmax(substream->runtime,
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
.formats = WM8903_FORMATS,
},
.ops = &wm8903_dai_ops,
+ .symmetric_rates = 1,
};
EXPORT_SYMBOL_GPL(wm8903_dai);
--- /dev/null
+/*
+ * wm8940.c -- WM8940 ALSA Soc Audio driver
+ *
+ * Author: Jonathan Cameron <jic23@cam.ac.uk>
+ *
+ * Based on wm8510.c
+ * Copyright 2006 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Not currently handled:
+ * Notch filter control
+ * AUXMode (inverting vs mixer)
+ * No means to obtain current gain if alc enabled.
+ * No use made of gpio
+ * Fast VMID discharge for power down
+ * Soft Start
+ * DLR and ALR Swaps not enabled
+ * Digital Sidetone not supported
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "wm8940.h"
+
+struct wm8940_priv {
+ unsigned int sysclk;
+ u16 reg_cache[WM8940_CACHEREGNUM];
+ struct snd_soc_codec codec;
+};
+
+static u16 wm8940_reg_defaults[] = {
+ 0x8940, /* Soft Reset */
+ 0x0000, /* Power 1 */
+ 0x0000, /* Power 2 */
+ 0x0000, /* Power 3 */
+ 0x0010, /* Interface Control */
+ 0x0000, /* Companding Control */
+ 0x0140, /* Clock Control */
+ 0x0000, /* Additional Controls */
+ 0x0000, /* GPIO Control */
+ 0x0002, /* Auto Increment Control */
+ 0x0000, /* DAC Control */
+ 0x00FF, /* DAC Volume */
+ 0,
+ 0,
+ 0x0100, /* ADC Control */
+ 0x00FF, /* ADC Volume */
+ 0x0000, /* Notch Filter 1 Control 1 */
+ 0x0000, /* Notch Filter 1 Control 2 */
+ 0x0000, /* Notch Filter 2 Control 1 */
+ 0x0000, /* Notch Filter 2 Control 2 */
+ 0x0000, /* Notch Filter 3 Control 1 */
+ 0x0000, /* Notch Filter 3 Control 2 */
+ 0x0000, /* Notch Filter 4 Control 1 */
+ 0x0000, /* Notch Filter 4 Control 2 */
+ 0x0032, /* DAC Limit Control 1 */
+ 0x0000, /* DAC Limit Control 2 */
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0x0038, /* ALC Control 1 */
+ 0x000B, /* ALC Control 2 */
+ 0x0032, /* ALC Control 3 */
+ 0x0000, /* Noise Gate */
+ 0x0041, /* PLLN */
+ 0x000C, /* PLLK1 */
+ 0x0093, /* PLLK2 */
+ 0x00E9, /* PLLK3 */
+ 0,
+ 0,
+ 0x0030, /* ALC Control 4 */
+ 0,
+ 0x0002, /* Input Control */
+ 0x0050, /* PGA Gain */
+ 0,
+ 0x0002, /* ADC Boost Control */
+ 0,
+ 0x0002, /* Output Control */
+ 0x0000, /* Speaker Mixer Control */
+ 0,
+ 0,
+ 0,
+ 0x0079, /* Speaker Volume */
+ 0,
+ 0x0000, /* Mono Mixer Control */
+};
+
+static inline unsigned int wm8940_read_reg_cache(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ u16 *cache = codec->reg_cache;
+
+ if (reg >= ARRAY_SIZE(wm8940_reg_defaults))
+ return -1;
+
+ return cache[reg];
+}
+
+static inline int wm8940_write_reg_cache(struct snd_soc_codec *codec,
+ u16 reg, unsigned int value)
+{
+ u16 *cache = codec->reg_cache;
+
+ if (reg >= ARRAY_SIZE(wm8940_reg_defaults))
+ return -1;
+
+ cache[reg] = value;
+
+ return 0;
+}
+
+static int wm8940_write(struct snd_soc_codec *codec, unsigned int reg,
+ unsigned int value)
+{
+ int ret;
+ u8 data[3] = { reg,
+ (value & 0xff00) >> 8,
+ (value & 0x00ff)
+ };
+
+ wm8940_write_reg_cache(codec, reg, value);
+
+ ret = codec->hw_write(codec->control_data, data, 3);
+
+ if (ret < 0)
+ return ret;
+ else if (ret != 3)
+ return -EIO;
+ return 0;
+}
+
+static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" };
+static const struct soc_enum wm8940_adc_companding_enum
+= SOC_ENUM_SINGLE(WM8940_COMPANDINGCTL, 1, 4, wm8940_companding);
+static const struct soc_enum wm8940_dac_companding_enum
+= SOC_ENUM_SINGLE(WM8940_COMPANDINGCTL, 3, 4, wm8940_companding);
+
+static const char *wm8940_alc_mode_text[] = {"ALC", "Limiter"};
+static const struct soc_enum wm8940_alc_mode_enum
+= SOC_ENUM_SINGLE(WM8940_ALC3, 8, 2, wm8940_alc_mode_text);
+
+static const char *wm8940_mic_bias_level_text[] = {"0.9", "0.65"};
+static const struct soc_enum wm8940_mic_bias_level_enum
+= SOC_ENUM_SINGLE(WM8940_INPUTCTL, 8, 2, wm8940_mic_bias_level_text);
+
+static const char *wm8940_filter_mode_text[] = {"Audio", "Application"};
+static const struct soc_enum wm8940_filter_mode_enum
+= SOC_ENUM_SINGLE(WM8940_ADC, 7, 2, wm8940_filter_mode_text);
+
+static DECLARE_TLV_DB_SCALE(wm8940_spk_vol_tlv, -5700, 100, 1);
+static DECLARE_TLV_DB_SCALE(wm8940_att_tlv, -1000, 1000, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_pga_vol_tlv, -1200, 75, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_alc_min_tlv, -1200, 600, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_alc_max_tlv, 675, 600, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_alc_tar_tlv, -2250, 50, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_lim_boost_tlv, 0, 100, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_lim_thresh_tlv, -600, 100, 0);
+static DECLARE_TLV_DB_SCALE(wm8940_adc_tlv, -12750, 50, 1);
+static DECLARE_TLV_DB_SCALE(wm8940_capture_boost_vol_tlv, 0, 2000, 0);
+
+static const struct snd_kcontrol_new wm8940_snd_controls[] = {
+ SOC_SINGLE("Digital Loopback Switch", WM8940_COMPANDINGCTL,
+ 6, 1, 0),
+ SOC_ENUM("DAC Companding", wm8940_dac_companding_enum),
+ SOC_ENUM("ADC Companding", wm8940_adc_companding_enum),
+
+ SOC_ENUM("ALC Mode", wm8940_alc_mode_enum),
+ SOC_SINGLE("ALC Switch", WM8940_ALC1, 8, 1, 0),
+ SOC_SINGLE_TLV("ALC Capture Max Gain", WM8940_ALC1,
+ 3, 7, 1, wm8940_alc_max_tlv),
+ SOC_SINGLE_TLV("ALC Capture Min Gain", WM8940_ALC1,
+ 0, 7, 0, wm8940_alc_min_tlv),
+ SOC_SINGLE_TLV("ALC Capture Target", WM8940_ALC2,
+ 0, 14, 0, wm8940_alc_tar_tlv),
+ SOC_SINGLE("ALC Capture Hold", WM8940_ALC2, 4, 10, 0),
+ SOC_SINGLE("ALC Capture Decay", WM8940_ALC3, 4, 10, 0),
+ SOC_SINGLE("ALC Capture Attach", WM8940_ALC3, 0, 10, 0),
+ SOC_SINGLE("ALC ZC Switch", WM8940_ALC4, 1, 1, 0),
+ SOC_SINGLE("ALC Capture Noise Gate Switch", WM8940_NOISEGATE,
+ 3, 1, 0),
+ SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8940_NOISEGATE,
+ 0, 7, 0),
+
+ SOC_SINGLE("DAC Playback Limiter Switch", WM8940_DACLIM1, 8, 1, 0),
+ SOC_SINGLE("DAC Playback Limiter Attack", WM8940_DACLIM1, 0, 9, 0),
+ SOC_SINGLE("DAC Playback Limiter Decay", WM8940_DACLIM1, 4, 11, 0),
+ SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8940_DACLIM2,
+ 4, 9, 1, wm8940_lim_thresh_tlv),
+ SOC_SINGLE_TLV("DAC Playback Limiter Boost", WM8940_DACLIM2,
+ 0, 12, 0, wm8940_lim_boost_tlv),
+
+ SOC_SINGLE("Capture PGA ZC Switch", WM8940_PGAGAIN, 7, 1, 0),
+ SOC_SINGLE_TLV("Capture PGA Volume", WM8940_PGAGAIN,
+ 0, 63, 0, wm8940_pga_vol_tlv),
+ SOC_SINGLE_TLV("Digital Playback Volume", WM8940_DACVOL,
+ 0, 255, 0, wm8940_adc_tlv),
+ SOC_SINGLE_TLV("Digital Capture Volume", WM8940_ADCVOL,
+ 0, 255, 0, wm8940_adc_tlv),
+ SOC_ENUM("Mic Bias Level", wm8940_mic_bias_level_enum),
+ SOC_SINGLE_TLV("Capture Boost Volue", WM8940_ADCBOOST,
+ 8, 1, 0, wm8940_capture_boost_vol_tlv),
+ SOC_SINGLE_TLV("Speaker Playback Volume", WM8940_SPKVOL,
+ 0, 63, 0, wm8940_spk_vol_tlv),
+ SOC_SINGLE("Speaker Playback Switch", WM8940_SPKVOL, 6, 1, 1),
+
+ SOC_SINGLE_TLV("Speaker Mixer Line Bypass Volume", WM8940_SPKVOL,
+ 8, 1, 1, wm8940_att_tlv),
+ SOC_SINGLE("Speaker Playback ZC Switch", WM8940_SPKVOL, 7, 1, 0),
+
+ SOC_SINGLE("Mono Out Switch", WM8940_MONOMIX, 6, 1, 1),
+ SOC_SINGLE_TLV("Mono Mixer Line Bypass Volume", WM8940_MONOMIX,
+ 7, 1, 1, wm8940_att_tlv),
+
+ SOC_SINGLE("High Pass Filter Switch", WM8940_ADC, 8, 1, 0),
+ SOC_ENUM("High Pass Filter Mode", wm8940_filter_mode_enum),
+ SOC_SINGLE("High Pass Filter Cut Off", WM8940_ADC, 4, 7, 0),
+ SOC_SINGLE("ADC Inversion Switch", WM8940_ADC, 0, 1, 0),
+ SOC_SINGLE("DAC Inversion Switch", WM8940_DAC, 0, 1, 0),
+ SOC_SINGLE("DAC Auto Mute Switch", WM8940_DAC, 2, 1, 0),
+ SOC_SINGLE("ZC Timeout Clock Switch", WM8940_ADDCNTRL, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8940_speaker_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Line Bypass Switch", WM8940_SPKMIX, 1, 1, 0),
+ SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_SPKMIX, 5, 1, 0),
+ SOC_DAPM_SINGLE("PCM Playback Switch", WM8940_SPKMIX, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8940_mono_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Line Bypass Switch", WM8940_MONOMIX, 1, 1, 0),
+ SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_MONOMIX, 2, 1, 0),
+ SOC_DAPM_SINGLE("PCM Playback Switch", WM8940_MONOMIX, 0, 1, 0),
+};
+
+static DECLARE_TLV_DB_SCALE(wm8940_boost_vol_tlv, -1500, 300, 1);
+static const struct snd_kcontrol_new wm8940_input_boost_controls[] = {
+ SOC_DAPM_SINGLE("Mic PGA Switch", WM8940_PGAGAIN, 6, 1, 1),
+ SOC_DAPM_SINGLE_TLV("Aux Volume", WM8940_ADCBOOST,
+ 0, 7, 0, wm8940_boost_vol_tlv),
+ SOC_DAPM_SINGLE_TLV("Mic Volume", WM8940_ADCBOOST,
+ 4, 7, 0, wm8940_boost_vol_tlv),
+};
+
+static const struct snd_kcontrol_new wm8940_micpga_controls[] = {
+ SOC_DAPM_SINGLE("AUX Switch", WM8940_INPUTCTL, 2, 1, 0),
+ SOC_DAPM_SINGLE("MICP Switch", WM8940_INPUTCTL, 0, 1, 0),
+ SOC_DAPM_SINGLE("MICN Switch", WM8940_INPUTCTL, 1, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8940_dapm_widgets[] = {
+ SND_SOC_DAPM_MIXER("Speaker Mixer", WM8940_POWER3, 2, 0,
+ &wm8940_speaker_mixer_controls[0],
+ ARRAY_SIZE(wm8940_speaker_mixer_controls)),
+ SND_SOC_DAPM_MIXER("Mono Mixer", WM8940_POWER3, 3, 0,
+ &wm8940_mono_mixer_controls[0],
+ ARRAY_SIZE(wm8940_mono_mixer_controls)),
+ SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8940_POWER3, 0, 0),
+
+ SND_SOC_DAPM_PGA("SpkN Out", WM8940_POWER3, 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("SpkP Out", WM8940_POWER3, 6, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Mono Out", WM8940_POWER3, 7, 0, NULL, 0),
+ SND_SOC_DAPM_OUTPUT("MONOOUT"),
+ SND_SOC_DAPM_OUTPUT("SPKOUTP"),
+ SND_SOC_DAPM_OUTPUT("SPKOUTN"),
+
+ SND_SOC_DAPM_PGA("Aux Input", WM8940_POWER1, 6, 0, NULL, 0),
+ SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8940_POWER2, 0, 0),
+ SND_SOC_DAPM_MIXER("Mic PGA", WM8940_POWER2, 2, 0,
+ &wm8940_micpga_controls[0],
+ ARRAY_SIZE(wm8940_micpga_controls)),
+ SND_SOC_DAPM_MIXER("Boost Mixer", WM8940_POWER2, 4, 0,
+ &wm8940_input_boost_controls[0],
+ ARRAY_SIZE(wm8940_input_boost_controls)),
+ SND_SOC_DAPM_MICBIAS("Mic Bias", WM8940_POWER1, 4, 0),
+
+ SND_SOC_DAPM_INPUT("MICN"),
+ SND_SOC_DAPM_INPUT("MICP"),
+ SND_SOC_DAPM_INPUT("AUX"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ /* Mono output mixer */
+ {"Mono Mixer", "PCM Playback Switch", "DAC"},
+ {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
+ {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
+
+ /* Speaker output mixer */
+ {"Speaker Mixer", "PCM Playback Switch", "DAC"},
+ {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
+ {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
+
+ /* Outputs */
+ {"Mono Out", NULL, "Mono Mixer"},
+ {"MONOOUT", NULL, "Mono Out"},
+ {"SpkN Out", NULL, "Speaker Mixer"},
+ {"SpkP Out", NULL, "Speaker Mixer"},
+ {"SPKOUTN", NULL, "SpkN Out"},
+ {"SPKOUTP", NULL, "SpkP Out"},
+
+ /* Microphone PGA */
+ {"Mic PGA", "MICN Switch", "MICN"},
+ {"Mic PGA", "MICP Switch", "MICP"},
+ {"Mic PGA", "AUX Switch", "AUX"},
+
+ /* Boost Mixer */
+ {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
+ {"Boost Mixer", "Mic Volume", "MICP"},
+ {"Boost Mixer", "Aux Volume", "Aux Input"},
+
+ {"ADC", NULL, "Boost Mixer"},
+};
+
+static int wm8940_add_widgets(struct snd_soc_codec *codec)
+{
+ int ret;
+
+ ret = snd_soc_dapm_new_controls(codec, wm8940_dapm_widgets,
+ ARRAY_SIZE(wm8940_dapm_widgets));
+ if (ret)
+ goto error_ret;
+ ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ if (ret)
+ goto error_ret;
+ ret = snd_soc_dapm_new_widgets(codec);
+
+error_ret:
+ return ret;
+}
+
+#define wm8940_reset(c) wm8940_write(c, WM8940_SOFTRESET, 0);
+
+static int wm8940_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 iface = wm8940_read_reg_cache(codec, WM8940_IFACE) & 0xFE67;
+ u16 clk = wm8940_read_reg_cache(codec, WM8940_CLOCK) & 0x1fe;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ clk |= 1;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ return -EINVAL;
+ }
+ wm8940_write(codec, WM8940_CLOCK, clk);
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ iface |= (2 << 3);
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface |= (1 << 3);
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface |= (3 << 3);
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ iface |= (3 << 3) | (1 << 7);
+ break;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface |= (1 << 7);
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface |= (1 << 8);
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ iface |= (1 << 8) | (1 << 7);
+ break;
+ }
+
+ wm8940_write(codec, WM8940_IFACE, iface);
+
+ return 0;
+}
+
+static int wm8940_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ u16 iface = wm8940_read_reg_cache(codec, WM8940_IFACE) & 0xFD9F;
+ u16 addcntrl = wm8940_read_reg_cache(codec, WM8940_ADDCNTRL) & 0xFFF1;
+ u16 companding = wm8940_read_reg_cache(codec,
+ WM8940_COMPANDINGCTL) & 0xFFDF;
+ int ret;
+
+ /* LoutR control */
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE
+ && params_channels(params) == 2)
+ iface |= (1 << 9);
+
+ switch (params_rate(params)) {
+ case SNDRV_PCM_RATE_8000:
+ addcntrl |= (0x5 << 1);
+ break;
+ case SNDRV_PCM_RATE_11025:
+ addcntrl |= (0x4 << 1);
+ break;
+ case SNDRV_PCM_RATE_16000:
+ addcntrl |= (0x3 << 1);
+ break;
+ case SNDRV_PCM_RATE_22050:
+ addcntrl |= (0x2 << 1);
+ break;
+ case SNDRV_PCM_RATE_32000:
+ addcntrl |= (0x1 << 1);
+ break;
+ case SNDRV_PCM_RATE_44100:
+ case SNDRV_PCM_RATE_48000:
+ break;
+ }
+ ret = wm8940_write(codec, WM8940_ADDCNTRL, addcntrl);
+ if (ret)
+ goto error_ret;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ companding = companding | (1 << 5);
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ iface |= (1 << 5);
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iface |= (2 << 5);
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ iface |= (3 << 5);
+ break;
+ }
+ ret = wm8940_write(codec, WM8940_COMPANDINGCTL, companding);
+ if (ret)
+ goto error_ret;
+ ret = wm8940_write(codec, WM8940_IFACE, iface);
+
+error_ret:
+ return ret;
+}
+
+static int wm8940_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 mute_reg = wm8940_read_reg_cache(codec, WM8940_DAC) & 0xffbf;
+
+ if (mute)
+ mute_reg |= 0x40;
+
+ return wm8940_write(codec, WM8940_DAC, mute_reg);
+}
+
+static int wm8940_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ u16 val;
+ u16 pwr_reg = wm8940_read_reg_cache(codec, WM8940_POWER1) & 0x1F0;
+ int ret = 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ /* ensure bufioen and biasen */
+ pwr_reg |= (1 << 2) | (1 << 3);
+ /* Enable thermal shutdown */
+ val = wm8940_read_reg_cache(codec, WM8940_OUTPUTCTL);
+ ret = wm8940_write(codec, WM8940_OUTPUTCTL, val | 0x2);
+ if (ret)
+ break;
+ /* set vmid to 75k */
+ ret = wm8940_write(codec, WM8940_POWER1, pwr_reg | 0x1);
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ /* ensure bufioen and biasen */
+ pwr_reg |= (1 << 2) | (1 << 3);
+ ret = wm8940_write(codec, WM8940_POWER1, pwr_reg | 0x1);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ /* ensure bufioen and biasen */
+ pwr_reg |= (1 << 2) | (1 << 3);
+ /* set vmid to 300k for standby */
+ ret = wm8940_write(codec, WM8940_POWER1, pwr_reg | 0x2);
+ break;
+ case SND_SOC_BIAS_OFF:
+ ret = wm8940_write(codec, WM8940_POWER1, pwr_reg);
+ break;
+ }
+
+ return ret;
+}
+
+struct pll_ {
+ unsigned int pre_scale:2;
+ unsigned int n:4;
+ unsigned int k;
+};
+
+static struct pll_ pll_div;
+
+/* The size in bits of the pll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_PLL_SIZE ((1 << 24) * 10)
+static void pll_factors(unsigned int target, unsigned int source)
+{
+ unsigned long long Kpart;
+ unsigned int K, Ndiv, Nmod;
+ /* The left shift ist to avoid accuracy loss when right shifting */
+ Ndiv = target / source;
+
+ if (Ndiv > 12) {
+ source <<= 1;
+ /* Multiply by 2 */
+ pll_div.pre_scale = 0;
+ Ndiv = target / source;
+ } else if (Ndiv < 3) {
+ source >>= 2;
+ /* Divide by 4 */
+ pll_div.pre_scale = 3;
+ Ndiv = target / source;
+ } else if (Ndiv < 6) {
+ source >>= 1;
+ /* divide by 2 */
+ pll_div.pre_scale = 2;
+ Ndiv = target / source;
+ } else
+ pll_div.pre_scale = 1;
+
+ if ((Ndiv < 6) || (Ndiv > 12))
+ printk(KERN_WARNING
+ "WM8940 N value %d outwith recommended range!d\n",
+ Ndiv);
+
+ pll_div.n = Ndiv;
+ Nmod = target % source;
+ Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+ do_div(Kpart, source);
+
+ K = Kpart & 0xFFFFFFFF;
+
+ /* Check if we need to round */
+ if ((K % 10) >= 5)
+ K += 5;
+
+ /* Move down to proper range now rounding is done */
+ K /= 10;
+
+ pll_div.k = K;
+}
+
+/* Untested at the moment */
+static int wm8940_set_dai_pll(struct snd_soc_dai *codec_dai,
+ int pll_id, unsigned int freq_in, unsigned int freq_out)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+
+ /* Turn off PLL */
+ reg = wm8940_read_reg_cache(codec, WM8940_POWER1);
+ wm8940_write(codec, WM8940_POWER1, reg & 0x1df);
+
+ if (freq_in == 0 || freq_out == 0) {
+ /* Clock CODEC directly from MCLK */
+ reg = wm8940_read_reg_cache(codec, WM8940_CLOCK);
+ wm8940_write(codec, WM8940_CLOCK, reg & 0x0ff);
+ /* Pll power down */
+ wm8940_write(codec, WM8940_PLLN, (1 << 7));
+ return 0;
+ }
+
+ /* Pll is followed by a frequency divide by 4 */
+ pll_factors(freq_out*4, freq_in);
+ if (pll_div.k)
+ wm8940_write(codec, WM8940_PLLN,
+ (pll_div.pre_scale << 4) | pll_div.n | (1 << 6));
+ else /* No factional component */
+ wm8940_write(codec, WM8940_PLLN,
+ (pll_div.pre_scale << 4) | pll_div.n);
+ wm8940_write(codec, WM8940_PLLK1, pll_div.k >> 18);
+ wm8940_write(codec, WM8940_PLLK2, (pll_div.k >> 9) & 0x1ff);
+ wm8940_write(codec, WM8940_PLLK3, pll_div.k & 0x1ff);
+ /* Enable the PLL */
+ reg = wm8940_read_reg_cache(codec, WM8940_POWER1);
+ wm8940_write(codec, WM8940_POWER1, reg | 0x020);
+
+ /* Run CODEC from PLL instead of MCLK */
+ reg = wm8940_read_reg_cache(codec, WM8940_CLOCK);
+ wm8940_write(codec, WM8940_CLOCK, reg | 0x100);
+
+ return 0;
+}
+
+static int wm8940_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct wm8940_priv *wm8940 = codec->private_data;
+
+ switch (freq) {
+ case 11289600:
+ case 12000000:
+ case 12288000:
+ case 16934400:
+ case 18432000:
+ wm8940->sysclk = freq;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int wm8940_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+ int div_id, int div)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+ int ret = 0;
+
+ switch (div_id) {
+ case WM8940_BCLKDIV:
+ reg = wm8940_read_reg_cache(codec, WM8940_CLOCK) & 0xFFEF3;
+ ret = wm8940_write(codec, WM8940_CLOCK, reg | (div << 2));
+ break;
+ case WM8940_MCLKDIV:
+ reg = wm8940_read_reg_cache(codec, WM8940_CLOCK) & 0xFF1F;
+ ret = wm8940_write(codec, WM8940_CLOCK, reg | (div << 5));
+ break;
+ case WM8940_OPCLKDIV:
+ reg = wm8940_read_reg_cache(codec, WM8940_ADDCNTRL) & 0xFFCF;
+ ret = wm8940_write(codec, WM8940_ADDCNTRL, reg | (div << 4));
+ break;
+ }
+ return ret;
+}
+
+#define WM8940_RATES SNDRV_PCM_RATE_8000_48000
+
+#define WM8940_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_ops wm8940_dai_ops = {
+ .hw_params = wm8940_i2s_hw_params,
+ .set_sysclk = wm8940_set_dai_sysclk,
+ .digital_mute = wm8940_mute,
+ .set_fmt = wm8940_set_dai_fmt,
+ .set_clkdiv = wm8940_set_dai_clkdiv,
+ .set_pll = wm8940_set_dai_pll,
+};
+
+struct snd_soc_dai wm8940_dai = {
+ .name = "WM8940",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8940_RATES,
+ .formats = WM8940_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8940_RATES,
+ .formats = WM8940_FORMATS,
+ },
+ .ops = &wm8940_dai_ops,
+ .symmetric_rates = 1,
+};
+EXPORT_SYMBOL_GPL(wm8940_dai);
+
+static int wm8940_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ return wm8940_set_bias_level(codec, SND_SOC_BIAS_OFF);
+}
+
+static int wm8940_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+ int i;
+ int ret;
+ u8 data[3];
+ u16 *cache = codec->reg_cache;
+
+ /* Sync reg_cache with the hardware
+ * Could use auto incremented writes to speed this up
+ */
+ for (i = 0; i < ARRAY_SIZE(wm8940_reg_defaults); i++) {
+ data[0] = i;
+ data[1] = (cache[i] & 0xFF00) >> 8;
+ data[2] = cache[i] & 0x00FF;
+ ret = codec->hw_write(codec->control_data, data, 3);
+ if (ret < 0)
+ goto error_ret;
+ else if (ret != 3) {
+ ret = -EIO;
+ goto error_ret;
+ }
+ }
+ ret = wm8940_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ if (ret)
+ goto error_ret;
+ ret = wm8940_set_bias_level(codec, codec->suspend_bias_level);
+
+error_ret:
+ return ret;
+}
+
+static struct snd_soc_codec *wm8940_codec;
+
+static int wm8940_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+
+ int ret = 0;
+
+ if (wm8940_codec == NULL) {
+ dev_err(&pdev->dev, "Codec device not registered\n");
+ return -ENODEV;
+ }
+
+ socdev->card->codec = wm8940_codec;
+ codec = wm8940_codec;
+
+ mutex_init(&codec->mutex);
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to create pcms: %d\n", ret);
+ goto pcm_err;
+ }
+
+ ret = snd_soc_add_controls(codec, wm8940_snd_controls,
+ ARRAY_SIZE(wm8940_snd_controls));
+ if (ret)
+ goto error_free_pcms;
+ ret = wm8940_add_widgets(codec);
+ if (ret)
+ goto error_free_pcms;
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to register card: %d\n", ret);
+ goto error_free_pcms;
+ }
+
+ return ret;
+
+error_free_pcms:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+pcm_err:
+ return ret;
+}
+
+static int wm8940_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_wm8940 = {
+ .probe = wm8940_probe,
+ .remove = wm8940_remove,
+ .suspend = wm8940_suspend,
+ .resume = wm8940_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8940);
+
+static int wm8940_register(struct wm8940_priv *wm8940)
+{
+ struct wm8940_setup_data *pdata = wm8940->codec.dev->platform_data;
+ struct snd_soc_codec *codec = &wm8940->codec;
+ int ret;
+ u16 reg;
+ if (wm8940_codec) {
+ dev_err(codec->dev, "Another WM8940 is registered\n");
+ return -EINVAL;
+ }
+
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ codec->private_data = wm8940;
+ codec->name = "WM8940";
+ codec->owner = THIS_MODULE;
+ codec->read = wm8940_read_reg_cache;
+ codec->write = wm8940_write;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = wm8940_set_bias_level;
+ codec->dai = &wm8940_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = ARRAY_SIZE(wm8940_reg_defaults);
+ codec->reg_cache = &wm8940->reg_cache;
+
+ memcpy(codec->reg_cache, wm8940_reg_defaults,
+ sizeof(wm8940_reg_defaults));
+
+ ret = wm8940_reset(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to issue reset\n");
+ return ret;
+ }
+
+ wm8940_dai.dev = codec->dev;
+
+ wm8940_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ ret = wm8940_write(codec, WM8940_POWER1, 0x180);
+ if (ret < 0)
+ return ret;
+
+ if (!pdata)
+ dev_warn(codec->dev, "No platform data supplied\n");
+ else {
+ reg = wm8940_read_reg_cache(codec, WM8940_OUTPUTCTL);
+ ret = wm8940_write(codec, WM8940_OUTPUTCTL, reg | pdata->vroi);
+ if (ret < 0)
+ return ret;
+ }
+
+
+ wm8940_codec = codec;
+
+ ret = snd_soc_register_codec(codec);
+ if (ret) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_register_dai(&wm8940_dai);
+ if (ret) {
+ dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+ snd_soc_unregister_codec(codec);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void wm8940_unregister(struct wm8940_priv *wm8940)
+{
+ wm8940_set_bias_level(&wm8940->codec, SND_SOC_BIAS_OFF);
+ snd_soc_unregister_dai(&wm8940_dai);
+ snd_soc_unregister_codec(&wm8940->codec);
+ kfree(wm8940);
+ wm8940_codec = NULL;
+}
+
+static int wm8940_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8940_priv *wm8940;
+ struct snd_soc_codec *codec;
+
+ wm8940 = kzalloc(sizeof *wm8940, GFP_KERNEL);
+ if (wm8940 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8940->codec;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+ i2c_set_clientdata(i2c, wm8940);
+ codec->control_data = i2c;
+ codec->dev = &i2c->dev;
+
+ return wm8940_register(wm8940);
+}
+
+static int wm8940_i2c_remove(struct i2c_client *client)
+{
+ struct wm8940_priv *wm8940 = i2c_get_clientdata(client);
+
+ wm8940_unregister(wm8940);
+
+ return 0;
+}
+
+static const struct i2c_device_id wm8940_i2c_id[] = {
+ { "wm8940", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8940_i2c_id);
+
+static struct i2c_driver wm8940_i2c_driver = {
+ .driver = {
+ .name = "WM8940 I2C Codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8940_i2c_probe,
+ .remove = __devexit_p(wm8940_i2c_remove),
+ .id_table = wm8940_i2c_id,
+};
+
+static int __init wm8940_modinit(void)
+{
+ int ret;
+
+ ret = i2c_add_driver(&wm8940_i2c_driver);
+ if (ret)
+ printk(KERN_ERR "Failed to register WM8940 I2C driver: %d\n",
+ ret);
+ return ret;
+}
+module_init(wm8940_modinit);
+
+static void __exit wm8940_exit(void)
+{
+ i2c_del_driver(&wm8940_i2c_driver);
+}
+module_exit(wm8940_exit);
+
+MODULE_DESCRIPTION("ASoC WM8940 driver");
+MODULE_AUTHOR("Jonathan Cameron");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * wm8940.h -- WM8940 Soc Audio driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _WM8940_H
+#define _WM8940_H
+
+struct wm8940_setup_data {
+ /* Vref to analogue output resistance */
+#define WM8940_VROI_1K 0
+#define WM8940_VROI_30K 1
+ unsigned int vroi:1;
+};
+extern struct snd_soc_dai wm8940_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8940;
+
+/* WM8940 register space */
+#define WM8940_SOFTRESET 0x00
+#define WM8940_POWER1 0x01
+#define WM8940_POWER2 0x02
+#define WM8940_POWER3 0x03
+#define WM8940_IFACE 0x04
+#define WM8940_COMPANDINGCTL 0x05
+#define WM8940_CLOCK 0x06
+#define WM8940_ADDCNTRL 0x07
+#define WM8940_GPIO 0x08
+#define WM8940_CTLINT 0x09
+#define WM8940_DAC 0x0A
+#define WM8940_DACVOL 0x0B
+
+#define WM8940_ADC 0x0E
+#define WM8940_ADCVOL 0x0F
+#define WM8940_NOTCH1 0x10
+#define WM8940_NOTCH2 0x11
+#define WM8940_NOTCH3 0x12
+#define WM8940_NOTCH4 0x13
+#define WM8940_NOTCH5 0x14
+#define WM8940_NOTCH6 0x15
+#define WM8940_NOTCH7 0x16
+#define WM8940_NOTCH8 0x17
+#define WM8940_DACLIM1 0x18
+#define WM8940_DACLIM2 0x19
+
+#define WM8940_ALC1 0x20
+#define WM8940_ALC2 0x21
+#define WM8940_ALC3 0x22
+#define WM8940_NOISEGATE 0x23
+#define WM8940_PLLN 0x24
+#define WM8940_PLLK1 0x25
+#define WM8940_PLLK2 0x26
+#define WM8940_PLLK3 0x27
+
+#define WM8940_ALC4 0x2A
+
+#define WM8940_INPUTCTL 0x2C
+#define WM8940_PGAGAIN 0x2D
+
+#define WM8940_ADCBOOST 0x2F
+
+#define WM8940_OUTPUTCTL 0x31
+#define WM8940_SPKMIX 0x32
+
+#define WM8940_SPKVOL 0x36
+
+#define WM8940_MONOMIX 0x38
+
+#define WM8940_CACHEREGNUM 0x57
+
+
+/* Clock divider Id's */
+#define WM8940_BCLKDIV 0
+#define WM8940_MCLKDIV 1
+#define WM8940_OPCLKDIV 2
+
+/* MCLK clock dividers */
+#define WM8940_MCLKDIV_1 0
+#define WM8940_MCLKDIV_1_5 1
+#define WM8940_MCLKDIV_2 2
+#define WM8940_MCLKDIV_3 3
+#define WM8940_MCLKDIV_4 4
+#define WM8940_MCLKDIV_6 5
+#define WM8940_MCLKDIV_8 6
+#define WM8940_MCLKDIV_12 7
+
+/* BCLK clock dividers */
+#define WM8940_BCLKDIV_1 0
+#define WM8940_BCLKDIV_2 1
+#define WM8940_BCLKDIV_4 2
+#define WM8940_BCLKDIV_8 3
+#define WM8940_BCLKDIV_16 4
+#define WM8940_BCLKDIV_32 5
+
+/* PLL Out Dividers */
+#define WM8940_OPCLKDIV_1 0
+#define WM8940_OPCLKDIV_2 1
+#define WM8940_OPCLKDIV_3 2
+#define WM8940_OPCLKDIV_4 3
+
+#endif /* _WM8940_H */
+
--- /dev/null
+/*
+ * wm8960.c -- WM8960 ALSA SoC Audio driver
+ *
+ * Author: Liam Girdwood
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "wm8960.h"
+
+#define AUDIO_NAME "wm8960"
+
+struct snd_soc_codec_device soc_codec_dev_wm8960;
+
+/* R25 - Power 1 */
+#define WM8960_VREF 0x40
+
+/* R28 - Anti-pop 1 */
+#define WM8960_POBCTRL 0x80
+#define WM8960_BUFDCOPEN 0x10
+#define WM8960_BUFIOEN 0x08
+#define WM8960_SOFT_ST 0x04
+#define WM8960_HPSTBY 0x01
+
+/* R29 - Anti-pop 2 */
+#define WM8960_DISOP 0x40
+
+/*
+ * wm8960 register cache
+ * We can't read the WM8960 register space when we are
+ * using 2 wire for device control, so we cache them instead.
+ */
+static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
+ 0x0097, 0x0097, 0x0000, 0x0000,
+ 0x0000, 0x0008, 0x0000, 0x000a,
+ 0x01c0, 0x0000, 0x00ff, 0x00ff,
+ 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0000, 0x007b, 0x0100, 0x0032,
+ 0x0000, 0x00c3, 0x00c3, 0x01c0,
+ 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x0100, 0x0100, 0x0050, 0x0050,
+ 0x0050, 0x0050, 0x0000, 0x0000,
+ 0x0000, 0x0000, 0x0040, 0x0000,
+ 0x0000, 0x0050, 0x0050, 0x0000,
+ 0x0002, 0x0037, 0x004d, 0x0080,
+ 0x0008, 0x0031, 0x0026, 0x00e9,
+};
+
+struct wm8960_priv {
+ u16 reg_cache[WM8960_CACHEREGNUM];
+ struct snd_soc_codec codec;
+};
+
+/*
+ * read wm8960 register cache
+ */
+static inline unsigned int wm8960_read_reg_cache(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ u16 *cache = codec->reg_cache;
+ if (reg == WM8960_RESET)
+ return 0;
+ if (reg >= WM8960_CACHEREGNUM)
+ return -1;
+ return cache[reg];
+}
+
+/*
+ * write wm8960 register cache
+ */
+static inline void wm8960_write_reg_cache(struct snd_soc_codec *codec,
+ u16 reg, unsigned int value)
+{
+ u16 *cache = codec->reg_cache;
+ if (reg >= WM8960_CACHEREGNUM)
+ return;
+ cache[reg] = value;
+}
+
+static inline unsigned int wm8960_read(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ return wm8960_read_reg_cache(codec, reg);
+}
+
+/*
+ * write to the WM8960 register space
+ */
+static int wm8960_write(struct snd_soc_codec *codec, unsigned int reg,
+ unsigned int value)
+{
+ u8 data[2];
+
+ /* data is
+ * D15..D9 WM8960 register offset
+ * D8...D0 register data
+ */
+ data[0] = (reg << 1) | ((value >> 8) & 0x0001);
+ data[1] = value & 0x00ff;
+
+ wm8960_write_reg_cache(codec, reg, value);
+ if (codec->hw_write(codec->control_data, data, 2) == 2)
+ return 0;
+ else
+ return -EIO;
+}
+
+#define wm8960_reset(c) wm8960_write(c, WM8960_RESET, 0)
+
+/* enumerated controls */
+static const char *wm8960_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
+static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
+ "Right Inverted", "Stereo Inversion"};
+static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
+static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
+static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
+static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
+
+static const struct soc_enum wm8960_enum[] = {
+ SOC_ENUM_SINGLE(WM8960_DACCTL1, 1, 4, wm8960_deemph),
+ SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
+ SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
+ SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
+ SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
+ SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
+ SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
+};
+
+static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
+static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
+
+static const struct snd_kcontrol_new wm8960_snd_controls[] = {
+SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
+ 0, 63, 0, adc_tlv),
+SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
+ 6, 1, 0),
+SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
+ 7, 1, 0),
+
+SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
+ 0, 255, 0, dac_tlv),
+
+SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
+ 0, 127, 0, out_tlv),
+SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
+ 7, 1, 0),
+
+SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
+ 0, 127, 0, out_tlv),
+SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
+ 7, 1, 0),
+SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
+SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
+
+SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
+SOC_ENUM("ADC Polarity", wm8960_enum[1]),
+SOC_ENUM("Playback De-emphasis", wm8960_enum[0]),
+SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
+
+SOC_ENUM("DAC Polarity", wm8960_enum[2]),
+
+SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[3]),
+SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[4]),
+SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
+SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
+
+SOC_ENUM("ALC Function", wm8960_enum[5]),
+SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
+SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
+SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
+SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
+SOC_ENUM("ALC Mode", wm8960_enum[6]),
+SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
+SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
+
+SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
+SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
+
+SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
+ 0, 127, 0),
+
+SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
+ WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
+ WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
+ WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
+ WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
+};
+
+static const struct snd_kcontrol_new wm8960_lin_boost[] = {
+SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
+SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
+SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_lin[] = {
+SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_rin_boost[] = {
+SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
+SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
+SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_rin[] = {
+SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
+SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
+SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
+SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
+SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
+SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
+SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_mono_out[] = {
+SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
+SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("LINPUT1"),
+SND_SOC_DAPM_INPUT("RINPUT1"),
+SND_SOC_DAPM_INPUT("LINPUT2"),
+SND_SOC_DAPM_INPUT("RINPUT2"),
+SND_SOC_DAPM_INPUT("LINPUT3"),
+SND_SOC_DAPM_INPUT("RINPUT3"),
+
+SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
+
+SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
+ wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
+SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
+ wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
+
+SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
+ wm8960_lin, ARRAY_SIZE(wm8960_lin)),
+SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
+ wm8960_rin, ARRAY_SIZE(wm8960_rin)),
+
+SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
+SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
+
+SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
+SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
+
+SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
+ &wm8960_loutput_mixer[0],
+ ARRAY_SIZE(wm8960_loutput_mixer)),
+SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
+ &wm8960_routput_mixer[0],
+ ARRAY_SIZE(wm8960_routput_mixer)),
+
+SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
+ &wm8960_mono_out[0],
+ ARRAY_SIZE(wm8960_mono_out)),
+
+SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
+SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
+
+SND_SOC_DAPM_OUTPUT("SPK_LP"),
+SND_SOC_DAPM_OUTPUT("SPK_LN"),
+SND_SOC_DAPM_OUTPUT("HP_L"),
+SND_SOC_DAPM_OUTPUT("HP_R"),
+SND_SOC_DAPM_OUTPUT("SPK_RP"),
+SND_SOC_DAPM_OUTPUT("SPK_RN"),
+SND_SOC_DAPM_OUTPUT("OUT3"),
+};
+
+static const struct snd_soc_dapm_route audio_paths[] = {
+ { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
+ { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
+ { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
+
+ { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
+ { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
+ { "Left Input Mixer", NULL, "LINPUT2" },
+ { "Left Input Mixer", NULL, "LINPUT3" },
+
+ { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
+ { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
+ { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
+
+ { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
+ { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
+ { "Right Input Mixer", NULL, "RINPUT2" },
+ { "Right Input Mixer", NULL, "LINPUT3" },
+
+ { "Left ADC", NULL, "Left Input Mixer" },
+ { "Right ADC", NULL, "Right Input Mixer" },
+
+ { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
+ { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
+ { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
+
+ { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
+ { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
+ { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
+
+ { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
+ { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
+
+ { "LOUT1 PGA", NULL, "Left Output Mixer" },
+ { "ROUT1 PGA", NULL, "Right Output Mixer" },
+
+ { "HP_L", NULL, "LOUT1 PGA" },
+ { "HP_R", NULL, "ROUT1 PGA" },
+
+ { "Left Speaker PGA", NULL, "Left Output Mixer" },
+ { "Right Speaker PGA", NULL, "Right Output Mixer" },
+
+ { "Left Speaker Output", NULL, "Left Speaker PGA" },
+ { "Right Speaker Output", NULL, "Right Speaker PGA" },
+
+ { "SPK_LN", NULL, "Left Speaker Output" },
+ { "SPK_LP", NULL, "Left Speaker Output" },
+ { "SPK_RN", NULL, "Right Speaker Output" },
+ { "SPK_RP", NULL, "Right Speaker Output" },
+
+ { "OUT3", NULL, "Mono Output Mixer", }
+};
+
+static int wm8960_add_widgets(struct snd_soc_codec *codec)
+{
+ snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
+ ARRAY_SIZE(wm8960_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
+
+ snd_soc_dapm_new_widgets(codec);
+ return 0;
+}
+
+static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 iface = 0;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ iface |= 0x0040;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ iface |= 0x0002;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface |= 0x0001;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface |= 0x0003;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ iface |= 0x0013;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ iface |= 0x0090;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface |= 0x0080;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface |= 0x0010;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* set iface */
+ wm8960_write(codec, WM8960_IFACE1, iface);
+ return 0;
+}
+
+static int wm8960_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ u16 iface = wm8960_read(codec, WM8960_IFACE1) & 0xfff3;
+
+ /* bit size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ iface |= 0x0004;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iface |= 0x0008;
+ break;
+ }
+
+ /* set iface */
+ wm8960_write(codec, WM8960_IFACE1, iface);
+ return 0;
+}
+
+static int wm8960_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 mute_reg = wm8960_read(codec, WM8960_DACCTL1) & 0xfff7;
+
+ if (mute)
+ wm8960_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
+ else
+ wm8960_write(codec, WM8960_DACCTL1, mute_reg);
+ return 0;
+}
+
+static int wm8960_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct wm8960_data *pdata = codec->dev->platform_data;
+ u16 reg;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ /* Set VMID to 2x50k */
+ reg = wm8960_read(codec, WM8960_POWER1);
+ reg &= ~0x180;
+ reg |= 0x80;
+ wm8960_write(codec, WM8960_POWER1, reg);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ /* Enable anti-pop features */
+ wm8960_write(codec, WM8960_APOP1,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN | WM8960_BUFIOEN);
+
+ /* Discharge HP output */
+ reg = WM8960_DISOP;
+ if (pdata)
+ reg |= pdata->dres << 4;
+ wm8960_write(codec, WM8960_APOP2, reg);
+
+ msleep(400);
+
+ wm8960_write(codec, WM8960_APOP2, 0);
+
+ /* Enable & ramp VMID at 2x50k */
+ reg = wm8960_read(codec, WM8960_POWER1);
+ reg |= 0x80;
+ wm8960_write(codec, WM8960_POWER1, reg);
+ msleep(100);
+
+ /* Enable VREF */
+ wm8960_write(codec, WM8960_POWER1, reg | WM8960_VREF);
+
+ /* Disable anti-pop features */
+ wm8960_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
+ }
+
+ /* Set VMID to 2x250k */
+ reg = wm8960_read(codec, WM8960_POWER1);
+ reg &= ~0x180;
+ reg |= 0x100;
+ wm8960_write(codec, WM8960_POWER1, reg);
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ /* Enable anti-pop features */
+ wm8960_write(codec, WM8960_APOP1,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN | WM8960_BUFIOEN);
+
+ /* Disable VMID and VREF, let them discharge */
+ wm8960_write(codec, WM8960_POWER1, 0);
+ msleep(600);
+
+ wm8960_write(codec, WM8960_APOP1, 0);
+ break;
+ }
+
+ codec->bias_level = level;
+
+ return 0;
+}
+
+/* PLL divisors */
+struct _pll_div {
+ u32 pre_div:1;
+ u32 n:4;
+ u32 k:24;
+};
+
+/* The size in bits of the pll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_PLL_SIZE ((1 << 24) * 10)
+
+static int pll_factors(unsigned int source, unsigned int target,
+ struct _pll_div *pll_div)
+{
+ unsigned long long Kpart;
+ unsigned int K, Ndiv, Nmod;
+
+ pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
+
+ /* Scale up target to PLL operating frequency */
+ target *= 4;
+
+ Ndiv = target / source;
+ if (Ndiv < 6) {
+ source >>= 1;
+ pll_div->pre_div = 1;
+ Ndiv = target / source;
+ } else
+ pll_div->pre_div = 0;
+
+ if ((Ndiv < 6) || (Ndiv > 12)) {
+ pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
+ return -EINVAL;
+ }
+
+ pll_div->n = Ndiv;
+ Nmod = target % source;
+ Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+ do_div(Kpart, source);
+
+ K = Kpart & 0xFFFFFFFF;
+
+ /* Check if we need to round */
+ if ((K % 10) >= 5)
+ K += 5;
+
+ /* Move down to proper range now rounding is done */
+ K /= 10;
+
+ pll_div->k = K;
+
+ pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
+ pll_div->n, pll_div->k, pll_div->pre_div);
+
+ return 0;
+}
+
+static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai,
+ int pll_id, unsigned int freq_in, unsigned int freq_out)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+ static struct _pll_div pll_div;
+ int ret;
+
+ if (freq_in && freq_out) {
+ ret = pll_factors(freq_in, freq_out, &pll_div);
+ if (ret != 0)
+ return ret;
+ }
+
+ /* Disable the PLL: even if we are changing the frequency the
+ * PLL needs to be disabled while we do so. */
+ wm8960_write(codec, WM8960_CLOCK1,
+ wm8960_read(codec, WM8960_CLOCK1) & ~1);
+ wm8960_write(codec, WM8960_POWER2,
+ wm8960_read(codec, WM8960_POWER2) & ~1);
+
+ if (!freq_in || !freq_out)
+ return 0;
+
+ reg = wm8960_read(codec, WM8960_PLL1) & ~0x3f;
+ reg |= pll_div.pre_div << 4;
+ reg |= pll_div.n;
+
+ if (pll_div.k) {
+ reg |= 0x20;
+
+ wm8960_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
+ wm8960_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
+ wm8960_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
+ }
+ wm8960_write(codec, WM8960_PLL1, reg);
+
+ /* Turn it on */
+ wm8960_write(codec, WM8960_POWER2,
+ wm8960_read(codec, WM8960_POWER2) | 1);
+ msleep(250);
+ wm8960_write(codec, WM8960_CLOCK1,
+ wm8960_read(codec, WM8960_CLOCK1) | 1);
+
+ return 0;
+}
+
+static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+ int div_id, int div)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+
+ switch (div_id) {
+ case WM8960_SYSCLKSEL:
+ reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1fe;
+ wm8960_write(codec, WM8960_CLOCK1, reg | div);
+ break;
+ case WM8960_SYSCLKDIV:
+ reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1f9;
+ wm8960_write(codec, WM8960_CLOCK1, reg | div);
+ break;
+ case WM8960_DACDIV:
+ reg = wm8960_read(codec, WM8960_CLOCK1) & 0x1c7;
+ wm8960_write(codec, WM8960_CLOCK1, reg | div);
+ break;
+ case WM8960_OPCLKDIV:
+ reg = wm8960_read(codec, WM8960_PLL1) & 0x03f;
+ wm8960_write(codec, WM8960_PLL1, reg | div);
+ break;
+ case WM8960_DCLKDIV:
+ reg = wm8960_read(codec, WM8960_CLOCK2) & 0x03f;
+ wm8960_write(codec, WM8960_CLOCK2, reg | div);
+ break;
+ case WM8960_TOCLKSEL:
+ reg = wm8960_read(codec, WM8960_ADDCTL1) & 0x1fd;
+ wm8960_write(codec, WM8960_ADDCTL1, reg | div);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
+
+#define WM8960_FORMATS \
+ (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static struct snd_soc_dai_ops wm8960_dai_ops = {
+ .hw_params = wm8960_hw_params,
+ .digital_mute = wm8960_mute,
+ .set_fmt = wm8960_set_dai_fmt,
+ .set_clkdiv = wm8960_set_dai_clkdiv,
+ .set_pll = wm8960_set_dai_pll,
+};
+
+struct snd_soc_dai wm8960_dai = {
+ .name = "WM8960",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8960_RATES,
+ .formats = WM8960_FORMATS,},
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8960_RATES,
+ .formats = WM8960_FORMATS,},
+ .ops = &wm8960_dai_ops,
+ .symmetric_rates = 1,
+};
+EXPORT_SYMBOL_GPL(wm8960_dai);
+
+static int wm8960_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ wm8960_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
+
+static int wm8960_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+ int i;
+ u8 data[2];
+ u16 *cache = codec->reg_cache;
+
+ /* Sync reg_cache with the hardware */
+ for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
+ data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
+ data[1] = cache[i] & 0x00ff;
+ codec->hw_write(codec->control_data, data, 2);
+ }
+
+ wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ wm8960_set_bias_level(codec, codec->suspend_bias_level);
+ return 0;
+}
+
+static struct snd_soc_codec *wm8960_codec;
+
+static int wm8960_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
+
+ if (wm8960_codec == NULL) {
+ dev_err(&pdev->dev, "Codec device not registered\n");
+ return -ENODEV;
+ }
+
+ socdev->card->codec = wm8960_codec;
+ codec = wm8960_codec;
+
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to create pcms: %d\n", ret);
+ goto pcm_err;
+ }
+
+ snd_soc_add_controls(codec, wm8960_snd_controls,
+ ARRAY_SIZE(wm8960_snd_controls));
+ wm8960_add_widgets(codec);
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to register card: %d\n", ret);
+ goto card_err;
+ }
+
+ return ret;
+
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+pcm_err:
+ return ret;
+}
+
+/* power down chip */
+static int wm8960_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_wm8960 = {
+ .probe = wm8960_probe,
+ .remove = wm8960_remove,
+ .suspend = wm8960_suspend,
+ .resume = wm8960_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960);
+
+static int wm8960_register(struct wm8960_priv *wm8960)
+{
+ struct wm8960_data *pdata = wm8960->codec.dev->platform_data;
+ struct snd_soc_codec *codec = &wm8960->codec;
+ int ret;
+ u16 reg;
+
+ if (wm8960_codec) {
+ dev_err(codec->dev, "Another WM8960 is registered\n");
+ return -EINVAL;
+ }
+
+ if (!pdata) {
+ dev_warn(codec->dev, "No platform data supplied\n");
+ } else {
+ if (pdata->dres > WM8960_DRES_MAX) {
+ dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
+ pdata->dres = 0;
+ }
+ }
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ codec->private_data = wm8960;
+ codec->name = "WM8960";
+ codec->owner = THIS_MODULE;
+ codec->read = wm8960_read_reg_cache;
+ codec->write = wm8960_write;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = wm8960_set_bias_level;
+ codec->dai = &wm8960_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = WM8960_CACHEREGNUM;
+ codec->reg_cache = &wm8960->reg_cache;
+
+ memcpy(codec->reg_cache, wm8960_reg, sizeof(wm8960_reg));
+
+ ret = wm8960_reset(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to issue reset\n");
+ return ret;
+ }
+
+ wm8960_dai.dev = codec->dev;
+
+ wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ /* Latch the update bits */
+ reg = wm8960_read(codec, WM8960_LINVOL);
+ wm8960_write(codec, WM8960_LINVOL, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_RINVOL);
+ wm8960_write(codec, WM8960_RINVOL, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_LADC);
+ wm8960_write(codec, WM8960_LADC, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_RADC);
+ wm8960_write(codec, WM8960_RADC, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_LDAC);
+ wm8960_write(codec, WM8960_LDAC, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_RDAC);
+ wm8960_write(codec, WM8960_RDAC, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_LOUT1);
+ wm8960_write(codec, WM8960_LOUT1, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_ROUT1);
+ wm8960_write(codec, WM8960_ROUT1, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_LOUT2);
+ wm8960_write(codec, WM8960_LOUT2, reg | 0x100);
+ reg = wm8960_read(codec, WM8960_ROUT2);
+ wm8960_write(codec, WM8960_ROUT2, reg | 0x100);
+
+ wm8960_codec = codec;
+
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_register_dai(&wm8960_dai);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+ snd_soc_unregister_codec(codec);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void wm8960_unregister(struct wm8960_priv *wm8960)
+{
+ wm8960_set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
+ snd_soc_unregister_dai(&wm8960_dai);
+ snd_soc_unregister_codec(&wm8960->codec);
+ kfree(wm8960);
+ wm8960_codec = NULL;
+}
+
+static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8960_priv *wm8960;
+ struct snd_soc_codec *codec;
+
+ wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
+ if (wm8960 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8960->codec;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+
+ i2c_set_clientdata(i2c, wm8960);
+ codec->control_data = i2c;
+
+ codec->dev = &i2c->dev;
+
+ return wm8960_register(wm8960);
+}
+
+static __devexit int wm8960_i2c_remove(struct i2c_client *client)
+{
+ struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
+ wm8960_unregister(wm8960);
+ return 0;
+}
+
+static const struct i2c_device_id wm8960_i2c_id[] = {
+ { "wm8960", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
+
+static struct i2c_driver wm8960_i2c_driver = {
+ .driver = {
+ .name = "WM8960 I2C Codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8960_i2c_probe,
+ .remove = __devexit_p(wm8960_i2c_remove),
+ .id_table = wm8960_i2c_id,
+};
+
+static int __init wm8960_modinit(void)
+{
+ int ret;
+
+ ret = i2c_add_driver(&wm8960_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
+ ret);
+ }
+
+ return ret;
+}
+module_init(wm8960_modinit);
+
+static void __exit wm8960_exit(void)
+{
+ i2c_del_driver(&wm8960_i2c_driver);
+}
+module_exit(wm8960_exit);
+
+
+MODULE_DESCRIPTION("ASoC WM8960 driver");
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * wm8960.h -- WM8960 Soc Audio driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _WM8960_H
+#define _WM8960_H
+
+/* WM8960 register space */
+
+
+#define WM8960_CACHEREGNUM 56
+
+#define WM8960_LINVOL 0x0
+#define WM8960_RINVOL 0x1
+#define WM8960_LOUT1 0x2
+#define WM8960_ROUT1 0x3
+#define WM8960_CLOCK1 0x4
+#define WM8960_DACCTL1 0x5
+#define WM8960_DACCTL2 0x6
+#define WM8960_IFACE1 0x7
+#define WM8960_CLOCK2 0x8
+#define WM8960_IFACE2 0x9
+#define WM8960_LDAC 0xa
+#define WM8960_RDAC 0xb
+
+#define WM8960_RESET 0xf
+#define WM8960_3D 0x10
+#define WM8960_ALC1 0x11
+#define WM8960_ALC2 0x12
+#define WM8960_ALC3 0x13
+#define WM8960_NOISEG 0x14
+#define WM8960_LADC 0x15
+#define WM8960_RADC 0x16
+#define WM8960_ADDCTL1 0x17
+#define WM8960_ADDCTL2 0x18
+#define WM8960_POWER1 0x19
+#define WM8960_POWER2 0x1a
+#define WM8960_ADDCTL3 0x1b
+#define WM8960_APOP1 0x1c
+#define WM8960_APOP2 0x1d
+
+#define WM8960_LINPATH 0x20
+#define WM8960_RINPATH 0x21
+#define WM8960_LOUTMIX 0x22
+
+#define WM8960_ROUTMIX 0x25
+#define WM8960_MONOMIX1 0x26
+#define WM8960_MONOMIX2 0x27
+#define WM8960_LOUT2 0x28
+#define WM8960_ROUT2 0x29
+#define WM8960_MONO 0x2a
+#define WM8960_INBMIX1 0x2b
+#define WM8960_INBMIX2 0x2c
+#define WM8960_BYPASS1 0x2d
+#define WM8960_BYPASS2 0x2e
+#define WM8960_POWER3 0x2f
+#define WM8960_ADDCTL4 0x30
+#define WM8960_CLASSD1 0x31
+
+#define WM8960_CLASSD3 0x33
+#define WM8960_PLL1 0x34
+#define WM8960_PLL2 0x35
+#define WM8960_PLL3 0x36
+#define WM8960_PLL4 0x37
+
+
+/*
+ * WM8960 Clock dividers
+ */
+#define WM8960_SYSCLKDIV 0
+#define WM8960_DACDIV 1
+#define WM8960_OPCLKDIV 2
+#define WM8960_DCLKDIV 3
+#define WM8960_TOCLKSEL 4
+#define WM8960_SYSCLKSEL 5
+
+#define WM8960_SYSCLK_DIV_1 (0 << 1)
+#define WM8960_SYSCLK_DIV_2 (2 << 1)
+
+#define WM8960_SYSCLK_MCLK (0 << 0)
+#define WM8960_SYSCLK_PLL (1 << 0)
+
+#define WM8960_DAC_DIV_1 (0 << 3)
+#define WM8960_DAC_DIV_1_5 (1 << 3)
+#define WM8960_DAC_DIV_2 (2 << 3)
+#define WM8960_DAC_DIV_3 (3 << 3)
+#define WM8960_DAC_DIV_4 (4 << 3)
+#define WM8960_DAC_DIV_5_5 (5 << 3)
+#define WM8960_DAC_DIV_6 (6 << 3)
+
+#define WM8960_DCLK_DIV_1_5 (0 << 6)
+#define WM8960_DCLK_DIV_2 (1 << 6)
+#define WM8960_DCLK_DIV_3 (2 << 6)
+#define WM8960_DCLK_DIV_4 (3 << 6)
+#define WM8960_DCLK_DIV_6 (4 << 6)
+#define WM8960_DCLK_DIV_8 (5 << 6)
+#define WM8960_DCLK_DIV_12 (6 << 6)
+#define WM8960_DCLK_DIV_16 (7 << 6)
+
+#define WM8960_TOCLK_F19 (0 << 1)
+#define WM8960_TOCLK_F21 (1 << 1)
+
+#define WM8960_OPCLK_DIV_1 (0 << 0)
+#define WM8960_OPCLK_DIV_2 (1 << 0)
+#define WM8960_OPCLK_DIV_3 (2 << 0)
+#define WM8960_OPCLK_DIV_4 (3 << 0)
+#define WM8960_OPCLK_DIV_5_5 (4 << 0)
+#define WM8960_OPCLK_DIV_6 (5 << 0)
+
+extern struct snd_soc_dai wm8960_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8960;
+
+#define WM8960_DRES_400R 0
+#define WM8960_DRES_200R 1
+#define WM8960_DRES_600R 2
+#define WM8960_DRES_150R 3
+#define WM8960_DRES_MAX 3
+
+struct wm8960_data {
+ int dres;
+};
+
+#endif
--- /dev/null
+/*
+ * wm8988.c -- WM8988 ALSA SoC audio driver
+ *
+ * Copyright 2009 Wolfson Microelectronics plc
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+
+#include "wm8988.h"
+
+/*
+ * wm8988 register cache
+ * We can't read the WM8988 register space when we
+ * are using 2 wire for device control, so we cache them instead.
+ */
+static const u16 wm8988_reg[] = {
+ 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
+ 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
+ 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
+ 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
+ 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
+ 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
+ 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
+ 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
+ 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
+ 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
+ 0x0079, 0x0079, 0x0079, /* 40 */
+};
+
+/* codec private data */
+struct wm8988_priv {
+ unsigned int sysclk;
+ struct snd_soc_codec codec;
+ struct snd_pcm_hw_constraint_list *sysclk_constraints;
+ u16 reg_cache[WM8988_NUM_REG];
+};
+
+
+/*
+ * read wm8988 register cache
+ */
+static inline unsigned int wm8988_read_reg_cache(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ u16 *cache = codec->reg_cache;
+ if (reg > WM8988_NUM_REG)
+ return -1;
+ return cache[reg];
+}
+
+/*
+ * write wm8988 register cache
+ */
+static inline void wm8988_write_reg_cache(struct snd_soc_codec *codec,
+ unsigned int reg, unsigned int value)
+{
+ u16 *cache = codec->reg_cache;
+ if (reg > WM8988_NUM_REG)
+ return;
+ cache[reg] = value;
+}
+
+static int wm8988_write(struct snd_soc_codec *codec, unsigned int reg,
+ unsigned int value)
+{
+ u8 data[2];
+
+ /* data is
+ * D15..D9 WM8753 register offset
+ * D8...D0 register data
+ */
+ data[0] = (reg << 1) | ((value >> 8) & 0x0001);
+ data[1] = value & 0x00ff;
+
+ wm8988_write_reg_cache(codec, reg, value);
+ if (codec->hw_write(codec->control_data, data, 2) == 2)
+ return 0;
+ else
+ return -EIO;
+}
+
+#define wm8988_reset(c) wm8988_write(c, WM8988_RESET, 0)
+
+/*
+ * WM8988 Controls
+ */
+
+static const char *bass_boost_txt[] = {"Linear Control", "Adaptive Boost"};
+static const struct soc_enum bass_boost =
+ SOC_ENUM_SINGLE(WM8988_BASS, 7, 2, bass_boost_txt);
+
+static const char *bass_filter_txt[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
+static const struct soc_enum bass_filter =
+ SOC_ENUM_SINGLE(WM8988_BASS, 6, 2, bass_filter_txt);
+
+static const char *treble_txt[] = {"8kHz", "4kHz"};
+static const struct soc_enum treble =
+ SOC_ENUM_SINGLE(WM8988_TREBLE, 6, 2, treble_txt);
+
+static const char *stereo_3d_lc_txt[] = {"200Hz", "500Hz"};
+static const struct soc_enum stereo_3d_lc =
+ SOC_ENUM_SINGLE(WM8988_3D, 5, 2, stereo_3d_lc_txt);
+
+static const char *stereo_3d_uc_txt[] = {"2.2kHz", "1.5kHz"};
+static const struct soc_enum stereo_3d_uc =
+ SOC_ENUM_SINGLE(WM8988_3D, 6, 2, stereo_3d_uc_txt);
+
+static const char *stereo_3d_func_txt[] = {"Capture", "Playback"};
+static const struct soc_enum stereo_3d_func =
+ SOC_ENUM_SINGLE(WM8988_3D, 7, 2, stereo_3d_func_txt);
+
+static const char *alc_func_txt[] = {"Off", "Right", "Left", "Stereo"};
+static const struct soc_enum alc_func =
+ SOC_ENUM_SINGLE(WM8988_ALC1, 7, 4, alc_func_txt);
+
+static const char *ng_type_txt[] = {"Constant PGA Gain",
+ "Mute ADC Output"};
+static const struct soc_enum ng_type =
+ SOC_ENUM_SINGLE(WM8988_NGATE, 1, 2, ng_type_txt);
+
+static const char *deemph_txt[] = {"None", "32Khz", "44.1Khz", "48Khz"};
+static const struct soc_enum deemph =
+ SOC_ENUM_SINGLE(WM8988_ADCDAC, 1, 4, deemph_txt);
+
+static const char *adcpol_txt[] = {"Normal", "L Invert", "R Invert",
+ "L + R Invert"};
+static const struct soc_enum adcpol =
+ SOC_ENUM_SINGLE(WM8988_ADCDAC, 5, 4, adcpol_txt);
+
+static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
+static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
+static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
+
+static const struct snd_kcontrol_new wm8988_snd_controls[] = {
+
+SOC_ENUM("Bass Boost", bass_boost),
+SOC_ENUM("Bass Filter", bass_filter),
+SOC_SINGLE("Bass Volume", WM8988_BASS, 0, 15, 1),
+
+SOC_SINGLE("Treble Volume", WM8988_TREBLE, 0, 15, 0),
+SOC_ENUM("Treble Cut-off", treble),
+
+SOC_SINGLE("3D Switch", WM8988_3D, 0, 1, 0),
+SOC_SINGLE("3D Volume", WM8988_3D, 1, 15, 0),
+SOC_ENUM("3D Lower Cut-off", stereo_3d_lc),
+SOC_ENUM("3D Upper Cut-off", stereo_3d_uc),
+SOC_ENUM("3D Mode", stereo_3d_func),
+
+SOC_SINGLE("ALC Capture Target Volume", WM8988_ALC1, 0, 7, 0),
+SOC_SINGLE("ALC Capture Max Volume", WM8988_ALC1, 4, 7, 0),
+SOC_ENUM("ALC Capture Function", alc_func),
+SOC_SINGLE("ALC Capture ZC Switch", WM8988_ALC2, 7, 1, 0),
+SOC_SINGLE("ALC Capture Hold Time", WM8988_ALC2, 0, 15, 0),
+SOC_SINGLE("ALC Capture Decay Time", WM8988_ALC3, 4, 15, 0),
+SOC_SINGLE("ALC Capture Attack Time", WM8988_ALC3, 0, 15, 0),
+SOC_SINGLE("ALC Capture NG Threshold", WM8988_NGATE, 3, 31, 0),
+SOC_ENUM("ALC Capture NG Type", ng_type),
+SOC_SINGLE("ALC Capture NG Switch", WM8988_NGATE, 0, 1, 0),
+
+SOC_SINGLE("ZC Timeout Switch", WM8988_ADCTL1, 0, 1, 0),
+
+SOC_DOUBLE_R_TLV("Capture Digital Volume", WM8988_LADC, WM8988_RADC,
+ 0, 255, 0, adc_tlv),
+SOC_DOUBLE_R_TLV("Capture Volume", WM8988_LINVOL, WM8988_RINVOL,
+ 0, 63, 0, pga_tlv),
+SOC_DOUBLE_R("Capture ZC Switch", WM8988_LINVOL, WM8988_RINVOL, 6, 1, 0),
+SOC_DOUBLE_R("Capture Switch", WM8988_LINVOL, WM8988_RINVOL, 7, 1, 1),
+
+SOC_ENUM("Playback De-emphasis", deemph),
+
+SOC_ENUM("Capture Polarity", adcpol),
+SOC_SINGLE("Playback 6dB Attenuate", WM8988_ADCDAC, 7, 1, 0),
+SOC_SINGLE("Capture 6dB Attenuate", WM8988_ADCDAC, 8, 1, 0),
+
+SOC_DOUBLE_R_TLV("PCM Volume", WM8988_LDAC, WM8988_RDAC, 0, 255, 0, dac_tlv),
+
+SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", WM8988_LOUTM1, 4, 7, 1,
+ bypass_tlv),
+SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", WM8988_LOUTM2, 4, 7, 1,
+ bypass_tlv),
+SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", WM8988_ROUTM1, 4, 7, 1,
+ bypass_tlv),
+SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", WM8988_ROUTM2, 4, 7, 1,
+ bypass_tlv),
+
+SOC_DOUBLE_R("Output 1 Playback ZC Switch", WM8988_LOUT1V,
+ WM8988_ROUT1V, 7, 1, 0),
+SOC_DOUBLE_R_TLV("Output 1 Playback Volume", WM8988_LOUT1V, WM8988_ROUT1V,
+ 0, 127, 0, out_tlv),
+
+SOC_DOUBLE_R("Output 2 Playback ZC Switch", WM8988_LOUT2V,
+ WM8988_ROUT2V, 7, 1, 0),
+SOC_DOUBLE_R_TLV("Output 2 Playback Volume", WM8988_LOUT2V, WM8988_ROUT2V,
+ 0, 127, 0, out_tlv),
+
+};
+
+/*
+ * DAPM Controls
+ */
+
+static int wm8988_lrc_control(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ u16 adctl2 = wm8988_read_reg_cache(codec, WM8988_ADCTL2);
+
+ /* Use the DAC to gate LRC if active, otherwise use ADC */
+ if (wm8988_read_reg_cache(codec, WM8988_PWR2) & 0x180)
+ adctl2 &= ~0x4;
+ else
+ adctl2 |= 0x4;
+
+ return wm8988_write(codec, WM8988_ADCTL2, adctl2);
+}
+
+static const char *wm8988_line_texts[] = {
+ "Line 1", "Line 2", "PGA", "Differential"};
+
+static const unsigned int wm8988_line_values[] = {
+ 0, 1, 3, 4};
+
+static const struct soc_enum wm8988_lline_enum =
+ SOC_VALUE_ENUM_SINGLE(WM8988_LOUTM1, 0, 7,
+ ARRAY_SIZE(wm8988_line_texts),
+ wm8988_line_texts,
+ wm8988_line_values);
+static const struct snd_kcontrol_new wm8988_left_line_controls =
+ SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum);
+
+static const struct soc_enum wm8988_rline_enum =
+ SOC_VALUE_ENUM_SINGLE(WM8988_ROUTM1, 0, 7,
+ ARRAY_SIZE(wm8988_line_texts),
+ wm8988_line_texts,
+ wm8988_line_values);
+static const struct snd_kcontrol_new wm8988_right_line_controls =
+ SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum);
+
+/* Left Mixer */
+static const struct snd_kcontrol_new wm8988_left_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Playback Switch", WM8988_LOUTM1, 8, 1, 0),
+ SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_LOUTM1, 7, 1, 0),
+ SOC_DAPM_SINGLE("Right Playback Switch", WM8988_LOUTM2, 8, 1, 0),
+ SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_LOUTM2, 7, 1, 0),
+};
+
+/* Right Mixer */
+static const struct snd_kcontrol_new wm8988_right_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Left Playback Switch", WM8988_ROUTM1, 8, 1, 0),
+ SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_ROUTM1, 7, 1, 0),
+ SOC_DAPM_SINGLE("Playback Switch", WM8988_ROUTM2, 8, 1, 0),
+ SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_ROUTM2, 7, 1, 0),
+};
+
+static const char *wm8988_pga_sel[] = {"Line 1", "Line 2", "Differential"};
+static const unsigned int wm8988_pga_val[] = { 0, 1, 3 };
+
+/* Left PGA Mux */
+static const struct soc_enum wm8988_lpga_enum =
+ SOC_VALUE_ENUM_SINGLE(WM8988_LADCIN, 6, 3,
+ ARRAY_SIZE(wm8988_pga_sel),
+ wm8988_pga_sel,
+ wm8988_pga_val);
+static const struct snd_kcontrol_new wm8988_left_pga_controls =
+ SOC_DAPM_VALUE_ENUM("Route", wm8988_lpga_enum);
+
+/* Right PGA Mux */
+static const struct soc_enum wm8988_rpga_enum =
+ SOC_VALUE_ENUM_SINGLE(WM8988_RADCIN, 6, 3,
+ ARRAY_SIZE(wm8988_pga_sel),
+ wm8988_pga_sel,
+ wm8988_pga_val);
+static const struct snd_kcontrol_new wm8988_right_pga_controls =
+ SOC_DAPM_VALUE_ENUM("Route", wm8988_rpga_enum);
+
+/* Differential Mux */
+static const char *wm8988_diff_sel[] = {"Line 1", "Line 2"};
+static const struct soc_enum diffmux =
+ SOC_ENUM_SINGLE(WM8988_ADCIN, 8, 2, wm8988_diff_sel);
+static const struct snd_kcontrol_new wm8988_diffmux_controls =
+ SOC_DAPM_ENUM("Route", diffmux);
+
+/* Mono ADC Mux */
+static const char *wm8988_mono_mux[] = {"Stereo", "Mono (Left)",
+ "Mono (Right)", "Digital Mono"};
+static const struct soc_enum monomux =
+ SOC_ENUM_SINGLE(WM8988_ADCIN, 6, 4, wm8988_mono_mux);
+static const struct snd_kcontrol_new wm8988_monomux_controls =
+ SOC_DAPM_ENUM("Route", monomux);
+
+static const struct snd_soc_dapm_widget wm8988_dapm_widgets[] = {
+ SND_SOC_DAPM_MICBIAS("Mic Bias", WM8988_PWR1, 1, 0),
+
+ SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
+ &wm8988_diffmux_controls),
+ SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
+ &wm8988_monomux_controls),
+ SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
+ &wm8988_monomux_controls),
+
+ SND_SOC_DAPM_MUX("Left PGA Mux", WM8988_PWR1, 5, 0,
+ &wm8988_left_pga_controls),
+ SND_SOC_DAPM_MUX("Right PGA Mux", WM8988_PWR1, 4, 0,
+ &wm8988_right_pga_controls),
+
+ SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
+ &wm8988_left_line_controls),
+ SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
+ &wm8988_right_line_controls),
+
+ SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8988_PWR1, 2, 0),
+ SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8988_PWR1, 3, 0),
+
+ SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8988_PWR2, 7, 0),
+ SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8988_PWR2, 8, 0),
+
+ SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
+ &wm8988_left_mixer_controls[0],
+ ARRAY_SIZE(wm8988_left_mixer_controls)),
+ SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
+ &wm8988_right_mixer_controls[0],
+ ARRAY_SIZE(wm8988_right_mixer_controls)),
+
+ SND_SOC_DAPM_PGA("Right Out 2", WM8988_PWR2, 3, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Left Out 2", WM8988_PWR2, 4, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Right Out 1", WM8988_PWR2, 5, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Left Out 1", WM8988_PWR2, 6, 0, NULL, 0),
+
+ SND_SOC_DAPM_POST("LRC control", wm8988_lrc_control),
+
+ SND_SOC_DAPM_OUTPUT("LOUT1"),
+ SND_SOC_DAPM_OUTPUT("ROUT1"),
+ SND_SOC_DAPM_OUTPUT("LOUT2"),
+ SND_SOC_DAPM_OUTPUT("ROUT2"),
+ SND_SOC_DAPM_OUTPUT("VREF"),
+
+ SND_SOC_DAPM_INPUT("LINPUT1"),
+ SND_SOC_DAPM_INPUT("LINPUT2"),
+ SND_SOC_DAPM_INPUT("RINPUT1"),
+ SND_SOC_DAPM_INPUT("RINPUT2"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+
+ { "Left Line Mux", "Line 1", "LINPUT1" },
+ { "Left Line Mux", "Line 2", "LINPUT2" },
+ { "Left Line Mux", "PGA", "Left PGA Mux" },
+ { "Left Line Mux", "Differential", "Differential Mux" },
+
+ { "Right Line Mux", "Line 1", "RINPUT1" },
+ { "Right Line Mux", "Line 2", "RINPUT2" },
+ { "Right Line Mux", "PGA", "Right PGA Mux" },
+ { "Right Line Mux", "Differential", "Differential Mux" },
+
+ { "Left PGA Mux", "Line 1", "LINPUT1" },
+ { "Left PGA Mux", "Line 2", "LINPUT2" },
+ { "Left PGA Mux", "Differential", "Differential Mux" },
+
+ { "Right PGA Mux", "Line 1", "RINPUT1" },
+ { "Right PGA Mux", "Line 2", "RINPUT2" },
+ { "Right PGA Mux", "Differential", "Differential Mux" },
+
+ { "Differential Mux", "Line 1", "LINPUT1" },
+ { "Differential Mux", "Line 1", "RINPUT1" },
+ { "Differential Mux", "Line 2", "LINPUT2" },
+ { "Differential Mux", "Line 2", "RINPUT2" },
+
+ { "Left ADC Mux", "Stereo", "Left PGA Mux" },
+ { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" },
+ { "Left ADC Mux", "Digital Mono", "Left PGA Mux" },
+
+ { "Right ADC Mux", "Stereo", "Right PGA Mux" },
+ { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" },
+ { "Right ADC Mux", "Digital Mono", "Right PGA Mux" },
+
+ { "Left ADC", NULL, "Left ADC Mux" },
+ { "Right ADC", NULL, "Right ADC Mux" },
+
+ { "Left Line Mux", "Line 1", "LINPUT1" },
+ { "Left Line Mux", "Line 2", "LINPUT2" },
+ { "Left Line Mux", "PGA", "Left PGA Mux" },
+ { "Left Line Mux", "Differential", "Differential Mux" },
+
+ { "Right Line Mux", "Line 1", "RINPUT1" },
+ { "Right Line Mux", "Line 2", "RINPUT2" },
+ { "Right Line Mux", "PGA", "Right PGA Mux" },
+ { "Right Line Mux", "Differential", "Differential Mux" },
+
+ { "Left Mixer", "Playback Switch", "Left DAC" },
+ { "Left Mixer", "Left Bypass Switch", "Left Line Mux" },
+ { "Left Mixer", "Right Playback Switch", "Right DAC" },
+ { "Left Mixer", "Right Bypass Switch", "Right Line Mux" },
+
+ { "Right Mixer", "Left Playback Switch", "Left DAC" },
+ { "Right Mixer", "Left Bypass Switch", "Left Line Mux" },
+ { "Right Mixer", "Playback Switch", "Right DAC" },
+ { "Right Mixer", "Right Bypass Switch", "Right Line Mux" },
+
+ { "Left Out 1", NULL, "Left Mixer" },
+ { "LOUT1", NULL, "Left Out 1" },
+ { "Right Out 1", NULL, "Right Mixer" },
+ { "ROUT1", NULL, "Right Out 1" },
+
+ { "Left Out 2", NULL, "Left Mixer" },
+ { "LOUT2", NULL, "Left Out 2" },
+ { "Right Out 2", NULL, "Right Mixer" },
+ { "ROUT2", NULL, "Right Out 2" },
+};
+
+struct _coeff_div {
+ u32 mclk;
+ u32 rate;
+ u16 fs;
+ u8 sr:5;
+ u8 usb:1;
+};
+
+/* codec hifi mclk clock divider coefficients */
+static const struct _coeff_div coeff_div[] = {
+ /* 8k */
+ {12288000, 8000, 1536, 0x6, 0x0},
+ {11289600, 8000, 1408, 0x16, 0x0},
+ {18432000, 8000, 2304, 0x7, 0x0},
+ {16934400, 8000, 2112, 0x17, 0x0},
+ {12000000, 8000, 1500, 0x6, 0x1},
+
+ /* 11.025k */
+ {11289600, 11025, 1024, 0x18, 0x0},
+ {16934400, 11025, 1536, 0x19, 0x0},
+ {12000000, 11025, 1088, 0x19, 0x1},
+
+ /* 16k */
+ {12288000, 16000, 768, 0xa, 0x0},
+ {18432000, 16000, 1152, 0xb, 0x0},
+ {12000000, 16000, 750, 0xa, 0x1},
+
+ /* 22.05k */
+ {11289600, 22050, 512, 0x1a, 0x0},
+ {16934400, 22050, 768, 0x1b, 0x0},
+ {12000000, 22050, 544, 0x1b, 0x1},
+
+ /* 32k */
+ {12288000, 32000, 384, 0xc, 0x0},
+ {18432000, 32000, 576, 0xd, 0x0},
+ {12000000, 32000, 375, 0xa, 0x1},
+
+ /* 44.1k */
+ {11289600, 44100, 256, 0x10, 0x0},
+ {16934400, 44100, 384, 0x11, 0x0},
+ {12000000, 44100, 272, 0x11, 0x1},
+
+ /* 48k */
+ {12288000, 48000, 256, 0x0, 0x0},
+ {18432000, 48000, 384, 0x1, 0x0},
+ {12000000, 48000, 250, 0x0, 0x1},
+
+ /* 88.2k */
+ {11289600, 88200, 128, 0x1e, 0x0},
+ {16934400, 88200, 192, 0x1f, 0x0},
+ {12000000, 88200, 136, 0x1f, 0x1},
+
+ /* 96k */
+ {12288000, 96000, 128, 0xe, 0x0},
+ {18432000, 96000, 192, 0xf, 0x0},
+ {12000000, 96000, 125, 0xe, 0x1},
+};
+
+static inline int get_coeff(int mclk, int rate)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
+ if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+/* The set of rates we can generate from the above for each SYSCLK */
+
+static unsigned int rates_12288[] = {
+ 8000, 12000, 16000, 24000, 24000, 32000, 48000, 96000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_12288 = {
+ .count = ARRAY_SIZE(rates_12288),
+ .list = rates_12288,
+};
+
+static unsigned int rates_112896[] = {
+ 8000, 11025, 22050, 44100,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_112896 = {
+ .count = ARRAY_SIZE(rates_112896),
+ .list = rates_112896,
+};
+
+static unsigned int rates_12[] = {
+ 8000, 11025, 12000, 16000, 22050, 2400, 32000, 41100, 48000,
+ 48000, 88235, 96000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_12 = {
+ .count = ARRAY_SIZE(rates_12),
+ .list = rates_12,
+};
+
+/*
+ * Note that this should be called from init rather than from hw_params.
+ */
+static int wm8988_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct wm8988_priv *wm8988 = codec->private_data;
+
+ switch (freq) {
+ case 11289600:
+ case 18432000:
+ case 22579200:
+ case 36864000:
+ wm8988->sysclk_constraints = &constraints_112896;
+ wm8988->sysclk = freq;
+ return 0;
+
+ case 12288000:
+ case 16934400:
+ case 24576000:
+ case 33868800:
+ wm8988->sysclk_constraints = &constraints_12288;
+ wm8988->sysclk = freq;
+ return 0;
+
+ case 12000000:
+ case 24000000:
+ wm8988->sysclk_constraints = &constraints_12;
+ wm8988->sysclk = freq;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int wm8988_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 iface = 0;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ iface = 0x0040;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ iface |= 0x0002;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface |= 0x0001;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface |= 0x0003;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ iface |= 0x0013;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ iface |= 0x0090;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface |= 0x0080;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface |= 0x0010;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ wm8988_write(codec, WM8988_IFACE, iface);
+ return 0;
+}
+
+static int wm8988_pcm_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8988_priv *wm8988 = codec->private_data;
+
+ /* The set of sample rates that can be supported depends on the
+ * MCLK supplied to the CODEC - enforce this.
+ */
+ if (!wm8988->sysclk) {
+ dev_err(codec->dev,
+ "No MCLK configured, call set_sysclk() on init\n");
+ return -EINVAL;
+ }
+
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ wm8988->sysclk_constraints);
+
+ return 0;
+}
+
+static int wm8988_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ struct wm8988_priv *wm8988 = codec->private_data;
+ u16 iface = wm8988_read_reg_cache(codec, WM8988_IFACE) & 0x1f3;
+ u16 srate = wm8988_read_reg_cache(codec, WM8988_SRATE) & 0x180;
+ int coeff;
+
+ coeff = get_coeff(wm8988->sysclk, params_rate(params));
+ if (coeff < 0) {
+ coeff = get_coeff(wm8988->sysclk / 2, params_rate(params));
+ srate |= 0x40;
+ }
+ if (coeff < 0) {
+ dev_err(codec->dev,
+ "Unable to configure sample rate %dHz with %dHz MCLK\n",
+ params_rate(params), wm8988->sysclk);
+ return coeff;
+ }
+
+ /* bit size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ iface |= 0x0004;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iface |= 0x0008;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ iface |= 0x000c;
+ break;
+ }
+
+ /* set iface & srate */
+ wm8988_write(codec, WM8988_IFACE, iface);
+ if (coeff >= 0)
+ wm8988_write(codec, WM8988_SRATE, srate |
+ (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
+
+ return 0;
+}
+
+static int wm8988_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ u16 mute_reg = wm8988_read_reg_cache(codec, WM8988_ADCDAC) & 0xfff7;
+
+ if (mute)
+ wm8988_write(codec, WM8988_ADCDAC, mute_reg | 0x8);
+ else
+ wm8988_write(codec, WM8988_ADCDAC, mute_reg);
+ return 0;
+}
+
+static int wm8988_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ u16 pwr_reg = wm8988_read_reg_cache(codec, WM8988_PWR1) & ~0x1c1;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ /* VREF, VMID=2x50k, digital enabled */
+ wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x00c0);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ /* VREF, VMID=2x5k */
+ wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x1c1);
+
+ /* Charge caps */
+ msleep(100);
+ }
+
+ /* VREF, VMID=2*500k, digital stopped */
+ wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x0141);
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ wm8988_write(codec, WM8988_PWR1, 0x0000);
+ break;
+ }
+ codec->bias_level = level;
+ return 0;
+}
+
+#define WM8988_RATES SNDRV_PCM_RATE_8000_96000
+
+#define WM8988_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static struct snd_soc_dai_ops wm8988_ops = {
+ .startup = wm8988_pcm_startup,
+ .hw_params = wm8988_pcm_hw_params,
+ .set_fmt = wm8988_set_dai_fmt,
+ .set_sysclk = wm8988_set_dai_sysclk,
+ .digital_mute = wm8988_mute,
+};
+
+struct snd_soc_dai wm8988_dai = {
+ .name = "WM8988",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8988_RATES,
+ .formats = WM8988_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8988_RATES,
+ .formats = WM8988_FORMATS,
+ },
+ .ops = &wm8988_ops,
+ .symmetric_rates = 1,
+};
+EXPORT_SYMBOL_GPL(wm8988_dai);
+
+static int wm8988_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+
+ wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
+
+static int wm8988_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
+ int i;
+ u8 data[2];
+ u16 *cache = codec->reg_cache;
+
+ /* Sync reg_cache with the hardware */
+ for (i = 0; i < WM8988_NUM_REG; i++) {
+ if (i == WM8988_RESET)
+ continue;
+ data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
+ data[1] = cache[i] & 0x00ff;
+ codec->hw_write(codec->control_data, data, 2);
+ }
+
+ wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ return 0;
+}
+
+static struct snd_soc_codec *wm8988_codec;
+
+static int wm8988_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
+
+ if (wm8988_codec == NULL) {
+ dev_err(&pdev->dev, "Codec device not registered\n");
+ return -ENODEV;
+ }
+
+ socdev->card->codec = wm8988_codec;
+ codec = wm8988_codec;
+
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to create pcms: %d\n", ret);
+ goto pcm_err;
+ }
+
+ snd_soc_add_controls(codec, wm8988_snd_controls,
+ ARRAY_SIZE(wm8988_snd_controls));
+ snd_soc_dapm_new_controls(codec, wm8988_dapm_widgets,
+ ARRAY_SIZE(wm8988_dapm_widgets));
+ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ snd_soc_dapm_new_widgets(codec);
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(codec->dev, "failed to register card: %d\n", ret);
+ goto card_err;
+ }
+
+ return ret;
+
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+pcm_err:
+ return ret;
+}
+
+static int wm8988_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_wm8988 = {
+ .probe = wm8988_probe,
+ .remove = wm8988_remove,
+ .suspend = wm8988_suspend,
+ .resume = wm8988_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8988);
+
+static int wm8988_register(struct wm8988_priv *wm8988)
+{
+ struct snd_soc_codec *codec = &wm8988->codec;
+ int ret;
+ u16 reg;
+
+ if (wm8988_codec) {
+ dev_err(codec->dev, "Another WM8988 is registered\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ codec->private_data = wm8988;
+ codec->name = "WM8988";
+ codec->owner = THIS_MODULE;
+ codec->read = wm8988_read_reg_cache;
+ codec->write = wm8988_write;
+ codec->dai = &wm8988_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = ARRAY_SIZE(wm8988->reg_cache);
+ codec->reg_cache = &wm8988->reg_cache;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = wm8988_set_bias_level;
+
+ memcpy(codec->reg_cache, wm8988_reg,
+ sizeof(wm8988_reg));
+
+ ret = wm8988_reset(codec);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to issue reset\n");
+ return ret;
+ }
+
+ /* set the update bits (we always update left then right) */
+ reg = wm8988_read_reg_cache(codec, WM8988_RADC);
+ wm8988_write(codec, WM8988_RADC, reg | 0x100);
+ reg = wm8988_read_reg_cache(codec, WM8988_RDAC);
+ wm8988_write(codec, WM8988_RDAC, reg | 0x0100);
+ reg = wm8988_read_reg_cache(codec, WM8988_ROUT1V);
+ wm8988_write(codec, WM8988_ROUT1V, reg | 0x0100);
+ reg = wm8988_read_reg_cache(codec, WM8988_ROUT2V);
+ wm8988_write(codec, WM8988_ROUT2V, reg | 0x0100);
+ reg = wm8988_read_reg_cache(codec, WM8988_RINVOL);
+ wm8988_write(codec, WM8988_RINVOL, reg | 0x0100);
+
+ wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_STANDBY);
+
+ wm8988_dai.dev = codec->dev;
+
+ wm8988_codec = codec;
+
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_register_dai(&wm8988_dai);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+ snd_soc_unregister_codec(codec);
+ return ret;
+ }
+
+ return 0;
+
+err:
+ kfree(wm8988);
+ return ret;
+}
+
+static void wm8988_unregister(struct wm8988_priv *wm8988)
+{
+ wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_OFF);
+ snd_soc_unregister_dai(&wm8988_dai);
+ snd_soc_unregister_codec(&wm8988->codec);
+ kfree(wm8988);
+ wm8988_codec = NULL;
+}
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static int wm8988_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8988_priv *wm8988;
+ struct snd_soc_codec *codec;
+
+ wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL);
+ if (wm8988 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8988->codec;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+
+ i2c_set_clientdata(i2c, wm8988);
+ codec->control_data = i2c;
+
+ codec->dev = &i2c->dev;
+
+ return wm8988_register(wm8988);
+}
+
+static int wm8988_i2c_remove(struct i2c_client *client)
+{
+ struct wm8988_priv *wm8988 = i2c_get_clientdata(client);
+ wm8988_unregister(wm8988);
+ return 0;
+}
+
+static const struct i2c_device_id wm8988_i2c_id[] = {
+ { "wm8988", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id);
+
+static struct i2c_driver wm8988_i2c_driver = {
+ .driver = {
+ .name = "WM8988",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8988_i2c_probe,
+ .remove = wm8988_i2c_remove,
+ .id_table = wm8988_i2c_id,
+};
+#endif
+
+#if defined(CONFIG_SPI_MASTER)
+static int wm8988_spi_write(struct spi_device *spi, const char *data, int len)
+{
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[2];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
+
+static int __devinit wm8988_spi_probe(struct spi_device *spi)
+{
+ struct wm8988_priv *wm8988;
+ struct snd_soc_codec *codec;
+
+ wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL);
+ if (wm8988 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8988->codec;
+ codec->hw_write = (hw_write_t)wm8988_spi_write;
+ codec->control_data = spi;
+ codec->dev = &spi->dev;
+
+ spi->dev.driver_data = wm8988;
+
+ return wm8988_register(wm8988);
+}
+
+static int __devexit wm8988_spi_remove(struct spi_device *spi)
+{
+ struct wm8988_priv *wm8988 = spi->dev.driver_data;
+
+ wm8988_unregister(wm8988);
+
+ return 0;
+}
+
+static struct spi_driver wm8988_spi_driver = {
+ .driver = {
+ .name = "wm8988",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8988_spi_probe,
+ .remove = __devexit_p(wm8988_spi_remove),
+};
+#endif
+
+static int __init wm8988_modinit(void)
+{
+ int ret;
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ ret = i2c_add_driver(&wm8988_i2c_driver);
+ if (ret != 0)
+ pr_err("WM8988: Unable to register I2C driver: %d\n", ret);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ ret = spi_register_driver(&wm8988_spi_driver);
+ if (ret != 0)
+ pr_err("WM8988: Unable to register SPI driver: %d\n", ret);
+#endif
+ return ret;
+}
+module_init(wm8988_modinit);
+
+static void __exit wm8988_exit(void)
+{
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ i2c_del_driver(&wm8988_i2c_driver);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8988_spi_driver);
+#endif
+}
+module_exit(wm8988_exit);
+
+
+MODULE_DESCRIPTION("ASoC WM8988 driver");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <richard@openedhand.com>
+ *
+ * Based on WM8753.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _WM8988_H
+#define _WM8988_H
+
+/* WM8988 register space */
+
+#define WM8988_LINVOL 0x00
+#define WM8988_RINVOL 0x01
+#define WM8988_LOUT1V 0x02
+#define WM8988_ROUT1V 0x03
+#define WM8988_ADCDAC 0x05
+#define WM8988_IFACE 0x07
+#define WM8988_SRATE 0x08
+#define WM8988_LDAC 0x0a
+#define WM8988_RDAC 0x0b
+#define WM8988_BASS 0x0c
+#define WM8988_TREBLE 0x0d
+#define WM8988_RESET 0x0f
+#define WM8988_3D 0x10
+#define WM8988_ALC1 0x11
+#define WM8988_ALC2 0x12
+#define WM8988_ALC3 0x13
+#define WM8988_NGATE 0x14
+#define WM8988_LADC 0x15
+#define WM8988_RADC 0x16
+#define WM8988_ADCTL1 0x17
+#define WM8988_ADCTL2 0x18
+#define WM8988_PWR1 0x19
+#define WM8988_PWR2 0x1a
+#define WM8988_ADCTL3 0x1b
+#define WM8988_ADCIN 0x1f
+#define WM8988_LADCIN 0x20
+#define WM8988_RADCIN 0x21
+#define WM8988_LOUTM1 0x22
+#define WM8988_LOUTM2 0x23
+#define WM8988_ROUTM1 0x24
+#define WM8988_ROUTM2 0x25
+#define WM8988_LOUT2V 0x28
+#define WM8988_ROUT2V 0x29
+#define WM8988_LPPB 0x43
+#define WM8988_NUM_REG 0x44
+
+#define WM8988_SYSCLK 0
+
+extern struct snd_soc_dai wm8988_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8988;
+
+#endif
SOC_SINGLE("3D Depth", AC97_REC_GAIN_MIC, 0, 15, 1),
};
+static int wm9713_voice_shutdown(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ u16 status, rate;
+
+ BUG_ON(event != SND_SOC_DAPM_PRE_PMD);
+
+ /* Gracefully shut down the voice interface. */
+ status = ac97_read(codec, AC97_EXTENDED_MID) | 0x1000;
+ rate = ac97_read(codec, AC97_HANDSET_RATE) & 0xF0FF;
+ ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0200);
+ schedule_timeout_interruptible(msecs_to_jiffies(1));
+ ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0F00);
+ ac97_write(codec, AC97_EXTENDED_MID, status);
+
+ return 0;
+}
+
+
/* We have to create a fake left and right HP mixers because
* the codec only has a single control that is shared by both channels.
* This makes it impossible to determine the audio path using the current
SND_SOC_DAPM_MIXER("HP Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Line Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_MIXER("Capture Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
-SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", AC97_EXTENDED_MID, 12, 1),
+SND_SOC_DAPM_DAC_E("Voice DAC", "Voice Playback", AC97_EXTENDED_MID, 12, 1,
+ wm9713_voice_shutdown, SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", AC97_EXTENDED_MID, 11, 1),
SND_SOC_DAPM_PGA("Left ADC", AC97_EXTENDED_MID, 5, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right ADC", AC97_EXTENDED_MID, 4, 1, NULL, 0),
return 0;
}
-static void wm9713_voiceshutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_codec *codec = dai->codec;
- u16 status, rate;
-
- /* Gracefully shut down the voice interface. */
- status = ac97_read(codec, AC97_EXTENDED_STATUS) | 0x1000;
- rate = ac97_read(codec, AC97_HANDSET_RATE) & 0xF0FF;
- ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0200);
- schedule_timeout_interruptible(msecs_to_jiffies(1));
- ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0F00);
- ac97_write(codec, AC97_EXTENDED_MID, status);
-}
-
static int ac97_hifi_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
static struct snd_soc_dai_ops wm9713_dai_ops_voice = {
.hw_params = wm9713_pcm_hw_params,
- .shutdown = wm9713_voiceshutdown,
.set_clkdiv = wm9713_set_dai_clkdiv,
.set_pll = wm9713_set_dai_pll,
.set_fmt = wm9713_set_dai_fmt,
.rates = WM9713_PCM_RATES,
.formats = WM9713_PCM_FORMATS,},
.ops = &wm9713_dai_ops_voice,
+ .symmetric_rates = 1,
},
};
EXPORT_SYMBOL_GPL(wm9713_dai);
clk_set_parent(sys_clkout2_src, func96m_clk);
clk_set_rate(sys_clkout2, 12000000);
- if (gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0)
- BUG();
- if (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0)
- BUG();
+ BUG_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
+ (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0));
+
gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
int dma, bus_id = mcbsp_data->bus_id, id = cpu_dai->id;
- int wlen, channels;
+ int wlen, channels, wpf;
unsigned long port;
+ unsigned int format;
if (cpu_class_is_omap1()) {
dma = omap1_dma_reqs[bus_id][substream->stream];
return 0;
}
- channels = params_channels(params);
+ format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+ wpf = channels = params_channels(params);
switch (channels) {
case 2:
- /* Use dual-phase frames */
- regs->rcr2 |= RPHASE;
- regs->xcr2 |= XPHASE;
+ if (format == SND_SOC_DAIFMT_I2S) {
+ /* Use dual-phase frames */
+ regs->rcr2 |= RPHASE;
+ regs->xcr2 |= XPHASE;
+ /* Set 1 word per (McBSP) frame for phase1 and phase2 */
+ wpf--;
+ regs->rcr2 |= RFRLEN2(wpf - 1);
+ regs->xcr2 |= XFRLEN2(wpf - 1);
+ }
case 1:
- /* Set 1 word per (McBSP) frame */
- regs->rcr2 |= RFRLEN2(1 - 1);
- regs->rcr1 |= RFRLEN1(1 - 1);
- regs->xcr2 |= XFRLEN2(1 - 1);
- regs->xcr1 |= XFRLEN1(1 - 1);
+ case 4:
+ /* Set word per (McBSP) frame for phase1 */
+ regs->rcr1 |= RFRLEN1(wpf - 1);
+ regs->xcr1 |= XFRLEN1(wpf - 1);
break;
default:
/* Unsupported number of channels */
}
/* Set FS period and length in terms of bit clock periods */
- switch (mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ switch (format) {
case SND_SOC_DAIFMT_I2S:
- regs->srgr2 |= FPER(wlen * 2 - 1);
+ regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(wlen - 1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(0);
regs->rcr2 |= RDATDLY(1);
regs->xcr2 |= XDATDLY(1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ /* 1-bit data delay */
+ regs->rcr2 |= RDATDLY(1);
+ regs->xcr2 |= XDATDLY(1);
+ /* Invert FS polarity configuration */
+ temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ break;
case SND_SOC_DAIFMT_DSP_B:
/* 0-bit data delay */
regs->rcr2 |= RDATDLY(0);
.id = (link_id), \
.playback = { \
.channels_min = 1, \
- .channels_max = 2, \
+ .channels_max = 4, \
.rates = OMAP_MCBSP_RATES, \
.formats = SNDRV_PCM_FMTBIT_S16_LE, \
}, \
.capture = { \
.channels_min = 1, \
- .channels_max = 2, \
+ .channels_max = 4, \
.rates = OMAP_MCBSP_RATES, \
.formats = SNDRV_PCM_FMTBIT_S16_LE, \
}, \
struct omap_pcm_dma_data *dma_data = rtd->dai->cpu_dai->dma_data;
int err = 0;
+ /* return if this is a bufferless transfer e.g.
+ * codec <--> BT codec or GSM modem -- lg FIXME */
if (!dma_data)
- return -ENODEV;
+ return 0;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
struct omap_pcm_dma_data *dma_data = prtd->dma_data;
struct omap_dma_channel_params dma_params;
+ /* return if this is a bufferless transfer e.g.
+ * codec <--> BT codec or GSM modem -- lg FIXME */
+ if (!prtd->dma_data)
+ return 0;
+
memset(&dma_params, 0, sizeof(dma_params));
/*
* Note: Regardless of interface data formats supported by OMAP McBSP
.name = "TWL4030",
.stream_name = "TWL4030",
.cpu_dai = &omap_mcbsp_dai[0],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.ops = &omap2evm_ops,
};
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int fmt;
int ret;
+ switch (params_channels(params)) {
+ case 2: /* Stereo I2S mode */
+ fmt = SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM;
+ break;
+ case 4: /* Four channel TDM mode */
+ fmt = SND_SOC_DAIFMT_DSP_A |
+ SND_SOC_DAIFMT_IB_NF |
+ SND_SOC_DAIFMT_CBM_CFM;
+ break;
+ default:
+ return -EINVAL;
+ }
+
/* Set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
+ ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
printk(KERN_ERR "can't set codec DAI configuration\n");
return ret;
}
/* Set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
+ ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0) {
printk(KERN_ERR "can't set cpu DAI configuration\n");
return ret;
.name = "TWL4030",
.stream_name = "TWL4030",
.cpu_dai = &omap_mcbsp_dai[0],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.ops = &omap3beagle_ops,
};
.name = "PCM1773",
.stream_name = "HiFi Out",
.cpu_dai = &omap_mcbsp_dai[0],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.ops = &omap3pandora_out_ops,
.init = omap3pandora_out_init,
}, {
.name = "TWL4030",
.stream_name = "Line/Mic In",
.cpu_dai = &omap_mcbsp_dai[1],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.ops = &omap3pandora_in_ops,
.init = omap3pandora_in_init,
}
.name = "TWL4030",
.stream_name = "TWL4030",
.cpu_dai = &omap_mcbsp_dai[0],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.ops = &overo_ops,
};
.name = "TWL4030",
.stream_name = "TWL4030",
.cpu_dai = &omap_mcbsp_dai[0],
- .codec_dai = &twl4030_dai,
+ .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
.init = sdp3430_twl4030_init,
.ops = &sdp3430_ops,
};
#endif
};
-#define PXA2xx_SSP1_BASE 0x41000000
-#define PXA27x_SSP2_BASE 0x41700000
-#define PXA27x_SSP3_BASE 0x41900000
-#define PXA3xx_SSP4_BASE 0x41a00000
-
-static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_mono_out = {
- .name = "SSP1 PCM Mono out",
- .dev_addr = PXA2xx_SSP1_BASE + SSDR,
- .drcmr = &DRCMR(14),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_mono_in = {
- .name = "SSP1 PCM Mono in",
- .dev_addr = PXA2xx_SSP1_BASE + SSDR,
- .drcmr = &DRCMR(13),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_stereo_out = {
- .name = "SSP1 PCM Stereo out",
- .dev_addr = PXA2xx_SSP1_BASE + SSDR,
- .drcmr = &DRCMR(14),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp1_pcm_stereo_in = {
- .name = "SSP1 PCM Stereo in",
- .dev_addr = PXA2xx_SSP1_BASE + SSDR,
- .drcmr = &DRCMR(13),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_mono_out = {
- .name = "SSP2 PCM Mono out",
- .dev_addr = PXA27x_SSP2_BASE + SSDR,
- .drcmr = &DRCMR(16),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_mono_in = {
- .name = "SSP2 PCM Mono in",
- .dev_addr = PXA27x_SSP2_BASE + SSDR,
- .drcmr = &DRCMR(15),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_stereo_out = {
- .name = "SSP2 PCM Stereo out",
- .dev_addr = PXA27x_SSP2_BASE + SSDR,
- .drcmr = &DRCMR(16),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp2_pcm_stereo_in = {
- .name = "SSP2 PCM Stereo in",
- .dev_addr = PXA27x_SSP2_BASE + SSDR,
- .drcmr = &DRCMR(15),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_mono_out = {
- .name = "SSP3 PCM Mono out",
- .dev_addr = PXA27x_SSP3_BASE + SSDR,
- .drcmr = &DRCMR(67),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_mono_in = {
- .name = "SSP3 PCM Mono in",
- .dev_addr = PXA27x_SSP3_BASE + SSDR,
- .drcmr = &DRCMR(66),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_stereo_out = {
- .name = "SSP3 PCM Stereo out",
- .dev_addr = PXA27x_SSP3_BASE + SSDR,
- .drcmr = &DRCMR(67),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp3_pcm_stereo_in = {
- .name = "SSP3 PCM Stereo in",
- .dev_addr = PXA27x_SSP3_BASE + SSDR,
- .drcmr = &DRCMR(66),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp4_pcm_mono_out = {
- .name = "SSP4 PCM Mono out",
- .dev_addr = PXA3xx_SSP4_BASE + SSDR,
- .drcmr = &DRCMR(67),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp4_pcm_mono_in = {
- .name = "SSP4 PCM Mono in",
- .dev_addr = PXA3xx_SSP4_BASE + SSDR,
- .drcmr = &DRCMR(66),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH2,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp4_pcm_stereo_out = {
- .name = "SSP4 PCM Stereo out",
- .dev_addr = PXA3xx_SSP4_BASE + SSDR,
- .drcmr = &DRCMR(67),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
-static struct pxa2xx_pcm_dma_params pxa_ssp4_pcm_stereo_in = {
- .name = "SSP4 PCM Stereo in",
- .dev_addr = PXA3xx_SSP4_BASE + SSDR,
- .drcmr = &DRCMR(66),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST16 | DCMD_WIDTH4,
-};
-
static void dump_registers(struct ssp_device *ssp)
{
dev_dbg(&ssp->pdev->dev, "SSCR0 0x%08x SSCR1 0x%08x SSTO 0x%08x\n",
ssp_read_reg(ssp, SSACD));
}
-static struct pxa2xx_pcm_dma_params *ssp_dma_params[4][4] = {
- {
- &pxa_ssp1_pcm_mono_out, &pxa_ssp1_pcm_mono_in,
- &pxa_ssp1_pcm_stereo_out, &pxa_ssp1_pcm_stereo_in,
- },
- {
- &pxa_ssp2_pcm_mono_out, &pxa_ssp2_pcm_mono_in,
- &pxa_ssp2_pcm_stereo_out, &pxa_ssp2_pcm_stereo_in,
- },
- {
- &pxa_ssp3_pcm_mono_out, &pxa_ssp3_pcm_mono_in,
- &pxa_ssp3_pcm_stereo_out, &pxa_ssp3_pcm_stereo_in,
- },
- {
- &pxa_ssp4_pcm_mono_out, &pxa_ssp4_pcm_mono_in,
- &pxa_ssp4_pcm_stereo_out, &pxa_ssp4_pcm_stereo_in,
- },
+struct pxa2xx_pcm_dma_data {
+ struct pxa2xx_pcm_dma_params params;
+ char name[20];
};
+static struct pxa2xx_pcm_dma_params *
+ssp_get_dma_params(struct ssp_device *ssp, int width4, int out)
+{
+ struct pxa2xx_pcm_dma_data *dma;
+
+ dma = kzalloc(sizeof(struct pxa2xx_pcm_dma_data), GFP_KERNEL);
+ if (dma == NULL)
+ return NULL;
+
+ snprintf(dma->name, 20, "SSP%d PCM %s %s", ssp->port_id,
+ width4 ? "32-bit" : "16-bit", out ? "out" : "in");
+
+ dma->params.name = dma->name;
+ dma->params.drcmr = &DRCMR(out ? ssp->drcmr_tx : ssp->drcmr_rx);
+ dma->params.dcmd = (out ? (DCMD_INCSRCADDR | DCMD_FLOWTRG) :
+ (DCMD_INCTRGADDR | DCMD_FLOWSRC)) |
+ (width4 ? DCMD_WIDTH4 : DCMD_WIDTH2) | DCMD_BURST16;
+ dma->params.dev_addr = ssp->phys_base + SSDR;
+
+ return &dma->params;
+}
+
static int pxa_ssp_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
clk_enable(priv->dev.ssp->clk);
ssp_disable(&priv->dev);
}
+
+ if (cpu_dai->dma_data) {
+ kfree(cpu_dai->dma_data);
+ cpu_dai->dma_data = NULL;
+ }
return ret;
}
ssp_disable(&priv->dev);
clk_disable(priv->dev.ssp->clk);
}
+
+ if (cpu_dai->dma_data) {
+ kfree(cpu_dai->dma_data);
+ cpu_dai->dma_data = NULL;
+ }
}
#ifdef CONFIG_PM
case SND_SOC_DAIFMT_NB_IF:
break;
case SND_SOC_DAIFMT_IB_IF:
- sspsp |= SSPSP_SCMODE(3);
+ sspsp |= SSPSP_SCMODE(2);
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP;
break;
default:
return -EINVAL;
case SND_SOC_DAIFMT_NB_NF:
sspsp |= SSPSP_SFRMP;
break;
+ case SND_SOC_DAIFMT_NB_IF:
+ break;
case SND_SOC_DAIFMT_IB_IF:
+ sspsp |= SSPSP_SCMODE(2);
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP;
break;
default:
return -EINVAL;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
- int dma = 0, chn = params_channels(params);
+ int chn = params_channels(params);
u32 sscr0;
u32 sspsp;
int width = snd_pcm_format_physical_width(params_format(params));
int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf;
- /* select correct DMA params */
- if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
- dma = 1; /* capture DMA offset is 1,3 */
+ /* generate correct DMA params */
+ if (cpu_dai->dma_data)
+ kfree(cpu_dai->dma_data);
+
/* Network mode with one active slot (ttsa == 1) can be used
* to force 16-bit frame width on the wire (for S16_LE), even
* with two channels. Use 16-bit DMA transfers for this case.
*/
- if (((chn == 2) && (ttsa != 1)) || (width == 32))
- dma += 2; /* 32-bit DMA offset is 2, 16-bit is 0 */
-
- cpu_dai->dma_data = ssp_dma_params[cpu_dai->id][dma];
-
- dev_dbg(&ssp->pdev->dev, "pxa_ssp_hw_params: dma %d\n", dma);
+ cpu_dai->dma_data = ssp_get_dma_params(ssp,
+ ((chn == 2) && (ttsa != 1)) || (width == 32),
+ substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
/* we can only change the settings if the port is not in use */
if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE)
s3c2412_i2s.iis_cclk = clk_get(&pdev->dev, "i2sclk");
if (s3c2412_i2s.iis_cclk == NULL) {
- pr_debug("failed to get i2sclk clock\n");
+ pr_err("failed to get i2sclk clock\n");
iounmap(s3c2412_i2s.regs);
return -ENODEV;
}
static int s3c64xx_i2s_probe(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
- struct device *dev = &pdev->dev;
- struct s3c_i2sv2_info *i2s;
- int ret;
-
- dev_dbg(dev, "%s: probing dai %d\n", __func__, pdev->id);
-
- if (pdev->id < 0 || pdev->id > ARRAY_SIZE(s3c64xx_i2s)) {
- dev_err(dev, "id %d out of range\n", pdev->id);
- return -EINVAL;
- }
-
- i2s = &s3c64xx_i2s[pdev->id];
-
- ret = s3c_i2sv2_probe(pdev, dai, i2s,
- pdev->id ? S3C64XX_PA_IIS1 : S3C64XX_PA_IIS0);
- if (ret)
- return ret;
-
- i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
- i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
-
- i2s->iis_cclk = clk_get(dev, "audio-bus");
- if (IS_ERR(i2s->iis_cclk)) {
- dev_err(dev, "failed to get audio-bus");
- iounmap(i2s->regs);
- return -ENODEV;
- }
-
/* configure GPIO for i2s port */
- switch (pdev->id) {
+ switch (dai->id) {
case 0:
s3c_gpio_cfgpin(S3C64XX_GPD(0), S3C64XX_GPD0_I2S0_CLK);
s3c_gpio_cfgpin(S3C64XX_GPD(1), S3C64XX_GPD1_I2S0_CDCLK);
.set_sysclk = s3c64xx_i2s_set_sysclk,
};
-struct snd_soc_dai s3c64xx_i2s_dai = {
- .name = "s3c64xx-i2s",
- .id = 0,
- .probe = s3c64xx_i2s_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C64XX_I2S_RATES,
- .formats = S3C64XX_I2S_FMTS,
+struct snd_soc_dai s3c64xx_i2s_dai[] = {
+ {
+ .name = "s3c64xx-i2s",
+ .id = 0,
+ .probe = s3c64xx_i2s_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,
+ },
+ .ops = &s3c64xx_i2s_dai_ops,
+ .symmetric_rates = 1,
},
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C64XX_I2S_RATES,
- .formats = S3C64XX_I2S_FMTS,
+ {
+ .name = "s3c64xx-i2s",
+ .id = 1,
+ .probe = s3c64xx_i2s_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,
+ },
+ .ops = &s3c64xx_i2s_dai_ops,
+ .symmetric_rates = 1,
},
- .ops = &s3c64xx_i2s_dai_ops,
};
EXPORT_SYMBOL_GPL(s3c64xx_i2s_dai);
+static __devinit int s3c64xx_iis_dev_probe(struct platform_device *pdev)
+{
+ struct s3c_i2sv2_info *i2s;
+ struct snd_soc_dai *dai;
+ int ret;
+
+ if (pdev->id >= ARRAY_SIZE(s3c64xx_i2s)) {
+ dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
+ return -EINVAL;
+ }
+
+ i2s = &s3c64xx_i2s[pdev->id];
+ dai = &s3c64xx_i2s_dai[pdev->id];
+ dai->dev = &pdev->dev;
+
+ i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
+ i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
+
+ i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
+ if (IS_ERR(i2s->iis_cclk)) {
+ dev_err(&pdev->dev, "failed to get audio-bus");
+ ret = PTR_ERR(i2s->iis_cclk);
+ goto err;
+ }
+
+ ret = s3c_i2sv2_probe(pdev, dai, i2s,
+ dai->id ? S3C64XX_PA_IIS1 : S3C64XX_PA_IIS0);
+ if (ret)
+ goto err_clk;
+
+ ret = s3c_i2sv2_register_dai(dai);
+ if (ret != 0)
+ goto err_i2sv2;
+
+ return 0;
+
+err_i2sv2:
+ /* Not implemented for I2Sv2 core yet */
+err_clk:
+ clk_put(i2s->iis_cclk);
+err:
+ return ret;
+}
+
+static __devexit int s3c64xx_iis_dev_remove(struct platform_device *pdev)
+{
+ dev_err(&pdev->dev, "Device removal not yet supported\n");
+ return 0;
+}
+
+static struct platform_driver s3c64xx_iis_driver = {
+ .probe = s3c64xx_iis_dev_probe,
+ .remove = s3c64xx_iis_dev_remove,
+ .driver = {
+ .name = "s3c64xx-iis",
+ .owner = THIS_MODULE,
+ },
+};
+
static int __init s3c64xx_i2s_init(void)
{
- return s3c_i2sv2_register_dai(&s3c64xx_i2s_dai);
+ return platform_driver_register(&s3c64xx_iis_driver);
}
module_init(s3c64xx_i2s_init);
static void __exit s3c64xx_i2s_exit(void)
{
- snd_soc_unregister_dai(&s3c64xx_i2s_dai);
+ platform_driver_unregister(&s3c64xx_iis_driver);
}
module_exit(s3c64xx_i2s_exit);
MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
MODULE_DESCRIPTION("S3C64XX I2S SoC Interface");
MODULE_LICENSE("GPL");
-
-
-
#define S3C64XX_CLKSRC_PCLK (0)
#define S3C64XX_CLKSRC_MUX (1)
-extern struct snd_soc_dai s3c64xx_i2s_dai;
+extern struct snd_soc_dai s3c64xx_i2s_dai[];
extern unsigned long s3c64xx_i2s_get_clockrate(struct snd_soc_dai *cpu_dai);
--- /dev/null
+config SND_S6000_SOC
+ tristate "SoC Audio for the Stretch s6000 family"
+ depends on XTENSA_VARIANT_S6000
+ help
+ Say Y or M if you want to add support for codecs attached to
+ s6000 family chips. You will also need to select the platform
+ to support below.
+
+config SND_S6000_SOC_I2S
+ tristate
+
+config SND_S6000_SOC_S6IPCAM
+ tristate "SoC Audio support for Stretch 6105 IP Camera"
+ depends on SND_S6000_SOC && XTENSA_PLATFORM_S6105
+ select SND_S6000_SOC_I2S
+ select SND_SOC_TLV320AIC3X
+ help
+ Say Y if you want to add support for SoC audio on the
+ Stretch s6105 IP Camera Reference Design.
--- /dev/null
+# s6000 Platform Support
+snd-soc-s6000-objs := s6000-pcm.o
+snd-soc-s6000-i2s-objs := s6000-i2s.o
+
+obj-$(CONFIG_SND_S6000_SOC) += snd-soc-s6000.o
+obj-$(CONFIG_SND_S6000_SOC_I2S) += snd-soc-s6000-i2s.o
+
+# s6105 Machine Support
+snd-soc-s6ipcam-objs := s6105-ipcam.o
+
+obj-$(CONFIG_SND_S6000_SOC_S6IPCAM) += snd-soc-s6ipcam.o
--- /dev/null
+/*
+ * ALSA SoC I2S Audio Layer for the Stretch S6000 family
+ *
+ * Author: Daniel Gloeckner, <dg@emlix.com>
+ * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "s6000-i2s.h"
+#include "s6000-pcm.h"
+
+struct s6000_i2s_dev {
+ dma_addr_t sifbase;
+ u8 __iomem *scbbase;
+ unsigned int wide;
+ unsigned int channel_in;
+ unsigned int channel_out;
+ unsigned int lines_in;
+ unsigned int lines_out;
+ struct s6000_pcm_dma_params dma_params;
+};
+
+#define S6_I2S_INTERRUPT_STATUS 0x00
+#define S6_I2S_INT_OVERRUN 1
+#define S6_I2S_INT_UNDERRUN 2
+#define S6_I2S_INT_ALIGNMENT 4
+#define S6_I2S_INTERRUPT_ENABLE 0x04
+#define S6_I2S_INTERRUPT_RAW 0x08
+#define S6_I2S_INTERRUPT_CLEAR 0x0C
+#define S6_I2S_INTERRUPT_SET 0x10
+#define S6_I2S_MODE 0x20
+#define S6_I2S_DUAL 0
+#define S6_I2S_WIDE 1
+#define S6_I2S_TX_DEFAULT 0x24
+#define S6_I2S_DATA_CFG(c) (0x40 + 0x10 * (c))
+#define S6_I2S_IN 0
+#define S6_I2S_OUT 1
+#define S6_I2S_UNUSED 2
+#define S6_I2S_INTERFACE_CFG(c) (0x44 + 0x10 * (c))
+#define S6_I2S_DIV_MASK 0x001fff
+#define S6_I2S_16BIT 0x000000
+#define S6_I2S_20BIT 0x002000
+#define S6_I2S_24BIT 0x004000
+#define S6_I2S_32BIT 0x006000
+#define S6_I2S_BITS_MASK 0x006000
+#define S6_I2S_MEM_16BIT 0x000000
+#define S6_I2S_MEM_32BIT 0x008000
+#define S6_I2S_MEM_MASK 0x008000
+#define S6_I2S_CHANNELS_SHIFT 16
+#define S6_I2S_CHANNELS_MASK 0x030000
+#define S6_I2S_SCK_IN 0x000000
+#define S6_I2S_SCK_OUT 0x040000
+#define S6_I2S_SCK_DIR 0x040000
+#define S6_I2S_WS_IN 0x000000
+#define S6_I2S_WS_OUT 0x080000
+#define S6_I2S_WS_DIR 0x080000
+#define S6_I2S_LEFT_FIRST 0x000000
+#define S6_I2S_RIGHT_FIRST 0x100000
+#define S6_I2S_FIRST 0x100000
+#define S6_I2S_CUR_SCK 0x200000
+#define S6_I2S_CUR_WS 0x400000
+#define S6_I2S_ENABLE(c) (0x48 + 0x10 * (c))
+#define S6_I2S_DISABLE_IF 0x02
+#define S6_I2S_ENABLE_IF 0x03
+#define S6_I2S_IS_BUSY 0x04
+#define S6_I2S_DMA_ACTIVE 0x08
+#define S6_I2S_IS_ENABLED 0x10
+
+#define S6_I2S_NUM_LINES 4
+
+#define S6_I2S_SIF_PORT0 0x0000000
+#define S6_I2S_SIF_PORT1 0x0000080 /* docs say 0x0000010 */
+
+static inline void s6_i2s_write_reg(struct s6000_i2s_dev *dev, int reg, u32 val)
+{
+ writel(val, dev->scbbase + reg);
+}
+
+static inline u32 s6_i2s_read_reg(struct s6000_i2s_dev *dev, int reg)
+{
+ return readl(dev->scbbase + reg);
+}
+
+static inline void s6_i2s_mod_reg(struct s6000_i2s_dev *dev, int reg,
+ u32 mask, u32 val)
+{
+ val ^= s6_i2s_read_reg(dev, reg) & ~mask;
+ s6_i2s_write_reg(dev, reg, val);
+}
+
+static void s6000_i2s_start_channel(struct s6000_i2s_dev *dev, int channel)
+{
+ int i, j, cur, prev;
+
+ /*
+ * Wait for WCLK to toggle 5 times before enabling the channel
+ * s6000 Family Datasheet 3.6.4:
+ * "At least two cycles of WS must occur between commands
+ * to disable or enable the interface"
+ */
+ j = 0;
+ prev = ~S6_I2S_CUR_WS;
+ for (i = 1000000; --i && j < 6; ) {
+ cur = s6_i2s_read_reg(dev, S6_I2S_INTERFACE_CFG(channel))
+ & S6_I2S_CUR_WS;
+ if (prev != cur) {
+ prev = cur;
+ j++;
+ }
+ }
+ if (j < 6)
+ printk(KERN_WARNING "s6000-i2s: timeout waiting for WCLK\n");
+
+ s6_i2s_write_reg(dev, S6_I2S_ENABLE(channel), S6_I2S_ENABLE_IF);
+}
+
+static void s6000_i2s_stop_channel(struct s6000_i2s_dev *dev, int channel)
+{
+ s6_i2s_write_reg(dev, S6_I2S_ENABLE(channel), S6_I2S_DISABLE_IF);
+}
+
+static void s6000_i2s_start(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s6000_i2s_dev *dev = rtd->dai->cpu_dai->private_data;
+ int channel;
+
+ channel = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
+ dev->channel_out : dev->channel_in;
+
+ s6000_i2s_start_channel(dev, channel);
+}
+
+static void s6000_i2s_stop(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s6000_i2s_dev *dev = rtd->dai->cpu_dai->private_data;
+ int channel;
+
+ channel = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
+ dev->channel_out : dev->channel_in;
+
+ s6000_i2s_stop_channel(dev, channel);
+}
+
+static int s6000_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ int after)
+{
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ^ !after)
+ s6000_i2s_start(substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ if (!after)
+ s6000_i2s_stop(substream);
+ }
+ return 0;
+}
+
+static unsigned int s6000_i2s_int_sources(struct s6000_i2s_dev *dev)
+{
+ unsigned int pending;
+ pending = s6_i2s_read_reg(dev, S6_I2S_INTERRUPT_RAW);
+ pending &= S6_I2S_INT_ALIGNMENT |
+ S6_I2S_INT_UNDERRUN |
+ S6_I2S_INT_OVERRUN;
+ s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_CLEAR, pending);
+
+ return pending;
+}
+
+static unsigned int s6000_i2s_check_xrun(struct snd_soc_dai *cpu_dai)
+{
+ struct s6000_i2s_dev *dev = cpu_dai->private_data;
+ unsigned int errors;
+ unsigned int ret;
+
+ errors = s6000_i2s_int_sources(dev);
+ if (likely(!errors))
+ return 0;
+
+ ret = 0;
+ if (errors & S6_I2S_INT_ALIGNMENT)
+ printk(KERN_ERR "s6000-i2s: WCLK misaligned\n");
+ if (errors & S6_I2S_INT_UNDERRUN)
+ ret |= 1 << SNDRV_PCM_STREAM_PLAYBACK;
+ if (errors & S6_I2S_INT_OVERRUN)
+ ret |= 1 << SNDRV_PCM_STREAM_CAPTURE;
+ return ret;
+}
+
+static void s6000_i2s_wait_disabled(struct s6000_i2s_dev *dev)
+{
+ int channel;
+ int n = 50;
+ for (channel = 0; channel < 2; channel++) {
+ while (--n >= 0) {
+ int v = s6_i2s_read_reg(dev, S6_I2S_ENABLE(channel));
+ if ((v & S6_I2S_IS_ENABLED)
+ || !(v & (S6_I2S_DMA_ACTIVE | S6_I2S_IS_BUSY)))
+ break;
+ udelay(20);
+ }
+ }
+ if (n < 0)
+ printk(KERN_WARNING "s6000-i2s: timeout disabling interfaces");
+}
+
+static int s6000_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct s6000_i2s_dev *dev = cpu_dai->private_data;
+ u32 w;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ w = S6_I2S_SCK_IN | S6_I2S_WS_IN;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ w = S6_I2S_SCK_OUT | S6_I2S_WS_IN;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ w = S6_I2S_SCK_IN | S6_I2S_WS_OUT;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ w = S6_I2S_SCK_OUT | S6_I2S_WS_OUT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ w |= S6_I2S_LEFT_FIRST;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ w |= S6_I2S_RIGHT_FIRST;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(0),
+ S6_I2S_FIRST | S6_I2S_WS_DIR | S6_I2S_SCK_DIR, w);
+ s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(1),
+ S6_I2S_FIRST | S6_I2S_WS_DIR | S6_I2S_SCK_DIR, w);
+
+ return 0;
+}
+
+static int s6000_i2s_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div)
+{
+ struct s6000_i2s_dev *dev = dai->private_data;
+
+ if (!div || (div & 1) || div > (S6_I2S_DIV_MASK + 1) * 2)
+ return -EINVAL;
+
+ s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(div_id),
+ S6_I2S_DIV_MASK, div / 2 - 1);
+ return 0;
+}
+
+static int s6000_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct s6000_i2s_dev *dev = dai->private_data;
+ int interf;
+ u32 w = 0;
+
+ if (dev->wide)
+ interf = 0;
+ else {
+ w |= (((params_channels(params) - 2) / 2)
+ << S6_I2S_CHANNELS_SHIFT) & S6_I2S_CHANNELS_MASK;
+ interf = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ ? dev->channel_out : dev->channel_in;
+ }
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ w |= S6_I2S_16BIT | S6_I2S_MEM_16BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ w |= S6_I2S_32BIT | S6_I2S_MEM_32BIT;
+ break;
+ default:
+ printk(KERN_WARNING "s6000-i2s: unsupported PCM format %x\n",
+ params_format(params));
+ return -EINVAL;
+ }
+
+ if (s6_i2s_read_reg(dev, S6_I2S_INTERFACE_CFG(interf))
+ & S6_I2S_IS_ENABLED) {
+ printk(KERN_ERR "s6000-i2s: interface already enabled\n");
+ return -EBUSY;
+ }
+
+ s6_i2s_mod_reg(dev, S6_I2S_INTERFACE_CFG(interf),
+ S6_I2S_CHANNELS_MASK|S6_I2S_MEM_MASK|S6_I2S_BITS_MASK,
+ w);
+
+ return 0;
+}
+
+static int s6000_i2s_dai_probe(struct platform_device *pdev,
+ struct snd_soc_dai *dai)
+{
+ struct s6000_i2s_dev *dev = dai->private_data;
+ struct s6000_snd_platform_data *pdata = pdev->dev.platform_data;
+
+ if (!pdata)
+ return -EINVAL;
+
+ dev->wide = pdata->wide;
+ dev->channel_in = pdata->channel_in;
+ dev->channel_out = pdata->channel_out;
+ dev->lines_in = pdata->lines_in;
+ dev->lines_out = pdata->lines_out;
+
+ s6_i2s_write_reg(dev, S6_I2S_MODE,
+ dev->wide ? S6_I2S_WIDE : S6_I2S_DUAL);
+
+ if (dev->wide) {
+ int i;
+
+ if (dev->lines_in + dev->lines_out > S6_I2S_NUM_LINES)
+ return -EINVAL;
+
+ dev->channel_in = 0;
+ dev->channel_out = 1;
+ dai->capture.channels_min = 2 * dev->lines_in;
+ dai->capture.channels_max = dai->capture.channels_min;
+ dai->playback.channels_min = 2 * dev->lines_out;
+ dai->playback.channels_max = dai->playback.channels_min;
+
+ for (i = 0; i < dev->lines_out; i++)
+ s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i), S6_I2S_OUT);
+
+ for (; i < S6_I2S_NUM_LINES - dev->lines_in; i++)
+ s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i),
+ S6_I2S_UNUSED);
+
+ for (; i < S6_I2S_NUM_LINES; i++)
+ s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(i), S6_I2S_IN);
+ } else {
+ unsigned int cfg[2] = {S6_I2S_UNUSED, S6_I2S_UNUSED};
+
+ if (dev->lines_in > 1 || dev->lines_out > 1)
+ return -EINVAL;
+
+ dai->capture.channels_min = 2 * dev->lines_in;
+ dai->capture.channels_max = 8 * dev->lines_in;
+ dai->playback.channels_min = 2 * dev->lines_out;
+ dai->playback.channels_max = 8 * dev->lines_out;
+
+ if (dev->lines_in)
+ cfg[dev->channel_in] = S6_I2S_IN;
+ if (dev->lines_out)
+ cfg[dev->channel_out] = S6_I2S_OUT;
+
+ s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(0), cfg[0]);
+ s6_i2s_write_reg(dev, S6_I2S_DATA_CFG(1), cfg[1]);
+ }
+
+ if (dev->lines_out) {
+ if (dev->lines_in) {
+ if (!dev->dma_params.dma_out)
+ return -ENODEV;
+ } else {
+ dev->dma_params.dma_out = dev->dma_params.dma_in;
+ dev->dma_params.dma_in = 0;
+ }
+ }
+ dev->dma_params.sif_in = dev->sifbase + (dev->channel_in ?
+ S6_I2S_SIF_PORT1 : S6_I2S_SIF_PORT0);
+ dev->dma_params.sif_out = dev->sifbase + (dev->channel_out ?
+ S6_I2S_SIF_PORT1 : S6_I2S_SIF_PORT0);
+ dev->dma_params.same_rate = pdata->same_rate | pdata->wide;
+ return 0;
+}
+
+#define S6000_I2S_RATES (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_5512 | \
+ SNDRV_PCM_RATE_8000_192000)
+#define S6000_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_ops s6000_i2s_dai_ops = {
+ .set_fmt = s6000_i2s_set_dai_fmt,
+ .set_clkdiv = s6000_i2s_set_clkdiv,
+ .hw_params = s6000_i2s_hw_params,
+};
+
+struct snd_soc_dai s6000_i2s_dai = {
+ .name = "s6000-i2s",
+ .id = 0,
+ .probe = s6000_i2s_dai_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 8,
+ .formats = S6000_I2S_FORMATS,
+ .rates = S6000_I2S_RATES,
+ .rate_min = 0,
+ .rate_max = 1562500,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 8,
+ .formats = S6000_I2S_FORMATS,
+ .rates = S6000_I2S_RATES,
+ .rate_min = 0,
+ .rate_max = 1562500,
+ },
+ .ops = &s6000_i2s_dai_ops,
+}
+EXPORT_SYMBOL_GPL(s6000_i2s_dai);
+
+static int __devinit s6000_i2s_probe(struct platform_device *pdev)
+{
+ struct s6000_i2s_dev *dev;
+ struct resource *scbmem, *sifmem, *region, *dma1, *dma2;
+ u8 __iomem *mmio;
+ int ret;
+
+ scbmem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!scbmem) {
+ dev_err(&pdev->dev, "no mem resource?\n");
+ ret = -ENODEV;
+ goto err_release_none;
+ }
+
+ region = request_mem_region(scbmem->start,
+ scbmem->end - scbmem->start + 1,
+ pdev->name);
+ if (!region) {
+ dev_err(&pdev->dev, "I2S SCB region already claimed\n");
+ ret = -EBUSY;
+ goto err_release_none;
+ }
+
+ mmio = ioremap(scbmem->start, scbmem->end - scbmem->start + 1);
+ if (!mmio) {
+ dev_err(&pdev->dev, "can't ioremap SCB region\n");
+ ret = -ENOMEM;
+ goto err_release_scb;
+ }
+
+ sifmem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!sifmem) {
+ dev_err(&pdev->dev, "no second mem resource?\n");
+ ret = -ENODEV;
+ goto err_release_map;
+ }
+
+ region = request_mem_region(sifmem->start,
+ sifmem->end - sifmem->start + 1,
+ pdev->name);
+ if (!region) {
+ dev_err(&pdev->dev, "I2S SIF region already claimed\n");
+ ret = -EBUSY;
+ goto err_release_map;
+ }
+
+ dma1 = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dma1) {
+ dev_err(&pdev->dev, "no dma resource?\n");
+ ret = -ENODEV;
+ goto err_release_sif;
+ }
+
+ region = request_mem_region(dma1->start, dma1->end - dma1->start + 1,
+ pdev->name);
+ if (!region) {
+ dev_err(&pdev->dev, "I2S DMA region already claimed\n");
+ ret = -EBUSY;
+ goto err_release_sif;
+ }
+
+ dma2 = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (dma2) {
+ region = request_mem_region(dma2->start,
+ dma2->end - dma2->start + 1,
+ pdev->name);
+ if (!region) {
+ dev_err(&pdev->dev,
+ "I2S DMA region already claimed\n");
+ ret = -EBUSY;
+ goto err_release_dma1;
+ }
+ }
+
+ dev = kzalloc(sizeof(struct s6000_i2s_dev), GFP_KERNEL);
+ if (!dev) {
+ ret = -ENOMEM;
+ goto err_release_dma2;
+ }
+
+ s6000_i2s_dai.dev = &pdev->dev;
+ s6000_i2s_dai.private_data = dev;
+ s6000_i2s_dai.dma_data = &dev->dma_params;
+
+ dev->sifbase = sifmem->start;
+ dev->scbbase = mmio;
+
+ s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE, 0);
+ s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_CLEAR,
+ S6_I2S_INT_ALIGNMENT |
+ S6_I2S_INT_UNDERRUN |
+ S6_I2S_INT_OVERRUN);
+
+ s6000_i2s_stop_channel(dev, 0);
+ s6000_i2s_stop_channel(dev, 1);
+ s6000_i2s_wait_disabled(dev);
+
+ dev->dma_params.check_xrun = s6000_i2s_check_xrun;
+ dev->dma_params.trigger = s6000_i2s_trigger;
+ dev->dma_params.dma_in = dma1->start;
+ dev->dma_params.dma_out = dma2 ? dma2->start : 0;
+ dev->dma_params.irq = platform_get_irq(pdev, 0);
+ if (dev->dma_params.irq < 0) {
+ dev_err(&pdev->dev, "no irq resource?\n");
+ ret = -ENODEV;
+ goto err_release_dev;
+ }
+
+ s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE,
+ S6_I2S_INT_ALIGNMENT |
+ S6_I2S_INT_UNDERRUN |
+ S6_I2S_INT_OVERRUN);
+
+ ret = snd_soc_register_dai(&s6000_i2s_dai);
+ if (ret)
+ goto err_release_dev;
+
+ return 0;
+
+err_release_dev:
+ kfree(dev);
+err_release_dma2:
+ if (dma2)
+ release_mem_region(dma2->start, dma2->end - dma2->start + 1);
+err_release_dma1:
+ release_mem_region(dma1->start, dma1->end - dma1->start + 1);
+err_release_sif:
+ release_mem_region(sifmem->start, (sifmem->end - sifmem->start) + 1);
+err_release_map:
+ iounmap(mmio);
+err_release_scb:
+ release_mem_region(scbmem->start, (scbmem->end - scbmem->start) + 1);
+err_release_none:
+ return ret;
+}
+
+static void __devexit s6000_i2s_remove(struct platform_device *pdev)
+{
+ struct s6000_i2s_dev *dev = s6000_i2s_dai.private_data;
+ struct resource *region;
+ void __iomem *mmio = dev->scbbase;
+
+ snd_soc_unregister_dai(&s6000_i2s_dai);
+
+ s6000_i2s_stop_channel(dev, 0);
+ s6000_i2s_stop_channel(dev, 1);
+
+ s6_i2s_write_reg(dev, S6_I2S_INTERRUPT_ENABLE, 0);
+ s6000_i2s_dai.private_data = 0;
+ kfree(dev);
+
+ region = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ release_mem_region(region->start, region->end - region->start + 1);
+
+ region = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (region)
+ release_mem_region(region->start,
+ region->end - region->start + 1);
+
+ region = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(region->start, (region->end - region->start) + 1);
+
+ iounmap(mmio);
+ region = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ release_mem_region(region->start, (region->end - region->start) + 1);
+}
+
+static struct platform_driver s6000_i2s_driver = {
+ .probe = s6000_i2s_probe,
+ .remove = __devexit_p(s6000_i2s_remove),
+ .driver = {
+ .name = "s6000-i2s",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s6000_i2s_init(void)
+{
+ return platform_driver_register(&s6000_i2s_driver);
+}
+module_init(s6000_i2s_init);
+
+static void __exit s6000_i2s_exit(void)
+{
+ platform_driver_unregister(&s6000_i2s_driver);
+}
+module_exit(s6000_i2s_exit);
+
+MODULE_AUTHOR("Daniel Gloeckner");
+MODULE_DESCRIPTION("Stretch s6000 family I2S SoC Interface");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * ALSA SoC I2S Audio Layer for the Stretch s6000 family
+ *
+ * Author: Daniel Gloeckner, <dg@emlix.com>
+ * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _S6000_I2S_H
+#define _S6000_I2S_H
+
+extern struct snd_soc_dai s6000_i2s_dai;
+
+struct s6000_snd_platform_data {
+ int lines_in;
+ int lines_out;
+ int channel_in;
+ int channel_out;
+ int wide;
+ int same_rate;
+};
+#endif
--- /dev/null
+/*
+ * ALSA PCM interface for the Stetch s6000 family
+ *
+ * Author: Daniel Gloeckner, <dg@emlix.com>
+ * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/dma.h>
+#include <variant/dmac.h>
+
+#include "s6000-pcm.h"
+
+#define S6_PCM_PREALLOCATE_SIZE (96 * 1024)
+#define S6_PCM_PREALLOCATE_MAX (2048 * 1024)
+
+static struct snd_pcm_hardware s6000_pcm_hardware = {
+ .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_JOINT_DUPLEX),
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE),
+ .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_5512 | \
+ SNDRV_PCM_RATE_8000_192000),
+ .rate_min = 0,
+ .rate_max = 1562500,
+ .channels_min = 2,
+ .channels_max = 8,
+ .buffer_bytes_max = 0x7ffffff0,
+ .period_bytes_min = 16,
+ .period_bytes_max = 0xfffff0,
+ .periods_min = 2,
+ .periods_max = 1024, /* no limit */
+ .fifo_size = 0,
+};
+
+struct s6000_runtime_data {
+ spinlock_t lock;
+ int period; /* current DMA period */
+};
+
+static void s6000_pcm_enqueue_dma(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct s6000_runtime_data *prtd = runtime->private_data;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ int channel;
+ unsigned int period_size;
+ unsigned int dma_offset;
+ dma_addr_t dma_pos;
+ dma_addr_t src, dst;
+
+ period_size = snd_pcm_lib_period_bytes(substream);
+ dma_offset = prtd->period * period_size;
+ dma_pos = runtime->dma_addr + dma_offset;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ src = dma_pos;
+ dst = par->sif_out;
+ channel = par->dma_out;
+ } else {
+ src = par->sif_in;
+ dst = dma_pos;
+ channel = par->dma_in;
+ }
+
+ if (!s6dmac_channel_enabled(DMA_MASK_DMAC(channel),
+ DMA_INDEX_CHNL(channel)))
+ return;
+
+ if (s6dmac_fifo_full(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel))) {
+ printk(KERN_ERR "s6000-pcm: fifo full\n");
+ return;
+ }
+
+ BUG_ON(period_size & 15);
+ s6dmac_put_fifo(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel),
+ src, dst, period_size);
+
+ prtd->period++;
+ if (unlikely(prtd->period >= runtime->periods))
+ prtd->period = 0;
+}
+
+static irqreturn_t s6000_pcm_irq(int irq, void *data)
+{
+ struct snd_pcm *pcm = data;
+ struct snd_soc_pcm_runtime *runtime = pcm->private_data;
+ struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+ struct s6000_runtime_data *prtd;
+ unsigned int has_xrun;
+ int i, ret = IRQ_NONE;
+ u32 channel[2] = {
+ [SNDRV_PCM_STREAM_PLAYBACK] = params->dma_out,
+ [SNDRV_PCM_STREAM_CAPTURE] = params->dma_in
+ };
+
+ has_xrun = params->check_xrun(runtime->dai->cpu_dai);
+
+ for (i = 0; i < ARRAY_SIZE(channel); ++i) {
+ struct snd_pcm_substream *substream = pcm->streams[i].substream;
+ unsigned int pending;
+
+ if (!channel[i])
+ continue;
+
+ if (unlikely(has_xrun & (1 << i)) &&
+ substream->runtime &&
+ snd_pcm_running(substream)) {
+ dev_dbg(pcm->dev, "xrun\n");
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+ ret = IRQ_HANDLED;
+ }
+
+ pending = s6dmac_int_sources(DMA_MASK_DMAC(channel[i]),
+ DMA_INDEX_CHNL(channel[i]));
+
+ if (pending & 1) {
+ ret = IRQ_HANDLED;
+ if (likely(substream->runtime &&
+ snd_pcm_running(substream))) {
+ snd_pcm_period_elapsed(substream);
+ dev_dbg(pcm->dev, "period elapsed %x %x\n",
+ s6dmac_cur_src(DMA_MASK_DMAC(channel[i]),
+ DMA_INDEX_CHNL(channel[i])),
+ s6dmac_cur_dst(DMA_MASK_DMAC(channel[i]),
+ DMA_INDEX_CHNL(channel[i])));
+ prtd = substream->runtime->private_data;
+ spin_lock(&prtd->lock);
+ s6000_pcm_enqueue_dma(substream);
+ spin_unlock(&prtd->lock);
+ }
+ }
+
+ if (unlikely(pending & ~7)) {
+ if (pending & (1 << 3))
+ printk(KERN_WARNING
+ "s6000-pcm: DMA %x Underflow\n",
+ channel[i]);
+ if (pending & (1 << 4))
+ printk(KERN_WARNING
+ "s6000-pcm: DMA %x Overflow\n",
+ channel[i]);
+ if (pending & 0x1e0)
+ printk(KERN_WARNING
+ "s6000-pcm: DMA %x Master Error "
+ "(mask %x)\n",
+ channel[i], pending >> 5);
+
+ }
+ }
+
+ return ret;
+}
+
+static int s6000_pcm_start(struct snd_pcm_substream *substream)
+{
+ struct s6000_runtime_data *prtd = substream->runtime->private_data;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ unsigned long flags;
+ int srcinc;
+ u32 dma;
+
+ spin_lock_irqsave(&prtd->lock, flags);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ srcinc = 1;
+ dma = par->dma_out;
+ } else {
+ srcinc = 0;
+ dma = par->dma_in;
+ }
+ s6dmac_enable_chan(DMA_MASK_DMAC(dma), DMA_INDEX_CHNL(dma),
+ 1 /* priority 1 (0 is max) */,
+ 0 /* peripheral requests w/o xfer length mode */,
+ srcinc /* source address increment */,
+ srcinc^1 /* destination address increment */,
+ 0 /* chunksize 0 (skip impossible on this dma) */,
+ 0 /* source skip after chunk (impossible) */,
+ 0 /* destination skip after chunk (impossible) */,
+ 4 /* 16 byte burst size */,
+ -1 /* don't conserve bandwidth */,
+ 0 /* low watermark irq descriptor theshold */,
+ 0 /* disable hardware timestamps */,
+ 1 /* enable channel */);
+
+ s6000_pcm_enqueue_dma(substream);
+ s6000_pcm_enqueue_dma(substream);
+
+ spin_unlock_irqrestore(&prtd->lock, flags);
+
+ return 0;
+}
+
+static int s6000_pcm_stop(struct snd_pcm_substream *substream)
+{
+ struct s6000_runtime_data *prtd = substream->runtime->private_data;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ unsigned long flags;
+ u32 channel;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ channel = par->dma_out;
+ else
+ channel = par->dma_in;
+
+ s6dmac_set_terminal_count(DMA_MASK_DMAC(channel),
+ DMA_INDEX_CHNL(channel), 0);
+
+ spin_lock_irqsave(&prtd->lock, flags);
+
+ s6dmac_disable_chan(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel));
+
+ spin_unlock_irqrestore(&prtd->lock, flags);
+
+ return 0;
+}
+
+static int s6000_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ int ret;
+
+ ret = par->trigger(substream, cmd, 0);
+ if (ret < 0)
+ return ret;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ret = s6000_pcm_start(substream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ret = s6000_pcm_stop(substream);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ if (ret < 0)
+ return ret;
+
+ return par->trigger(substream, cmd, 1);
+}
+
+static int s6000_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct s6000_runtime_data *prtd = substream->runtime->private_data;
+
+ prtd->period = 0;
+
+ return 0;
+}
+
+static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct s6000_runtime_data *prtd = runtime->private_data;
+ unsigned long flags;
+ unsigned int offset;
+ dma_addr_t count;
+
+ spin_lock_irqsave(&prtd->lock, flags);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ count = s6dmac_cur_src(DMA_MASK_DMAC(par->dma_out),
+ DMA_INDEX_CHNL(par->dma_out));
+ else
+ count = s6dmac_cur_dst(DMA_MASK_DMAC(par->dma_in),
+ DMA_INDEX_CHNL(par->dma_in));
+
+ count -= runtime->dma_addr;
+
+ spin_unlock_irqrestore(&prtd->lock, flags);
+
+ offset = bytes_to_frames(runtime, count);
+ if (unlikely(offset >= runtime->buffer_size))
+ offset = 0;
+
+ return offset;
+}
+
+static int s6000_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct s6000_runtime_data *prtd;
+ int ret;
+
+ snd_soc_set_runtime_hwparams(substream, &s6000_pcm_hardware);
+
+ ret = snd_pcm_hw_constraint_step(runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 16);
+ if (ret < 0)
+ return ret;
+ ret = snd_pcm_hw_constraint_step(runtime, 0,
+ SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
+ if (ret < 0)
+ return ret;
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ return ret;
+
+ if (par->same_rate) {
+ int rate;
+ spin_lock(&par->lock); /* needed? */
+ rate = par->rate;
+ spin_unlock(&par->lock);
+ if (rate != -1) {
+ ret = snd_pcm_hw_constraint_minmax(runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ rate, rate);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
+ prtd = kzalloc(sizeof(struct s6000_runtime_data), GFP_KERNEL);
+ if (prtd == NULL)
+ return -ENOMEM;
+
+ spin_lock_init(&prtd->lock);
+
+ runtime->private_data = prtd;
+
+ return 0;
+}
+
+static int s6000_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct s6000_runtime_data *prtd = runtime->private_data;
+
+ kfree(prtd);
+
+ return 0;
+}
+
+static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+ int ret;
+ ret = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+ if (ret < 0) {
+ printk(KERN_WARNING "s6000-pcm: allocation of memory failed\n");
+ return ret;
+ }
+
+ if (par->same_rate) {
+ spin_lock(&par->lock);
+ if (par->rate == -1 ||
+ !(par->in_use & ~(1 << substream->stream))) {
+ par->rate = params_rate(hw_params);
+ par->in_use |= 1 << substream->stream;
+ } else if (params_rate(hw_params) != par->rate) {
+ snd_pcm_lib_free_pages(substream);
+ par->in_use &= ~(1 << substream->stream);
+ ret = -EBUSY;
+ }
+ spin_unlock(&par->lock);
+ }
+ return ret;
+}
+
+static int s6000_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+
+ spin_lock(&par->lock);
+ par->in_use &= ~(1 << substream->stream);
+ if (!par->in_use)
+ par->rate = -1;
+ spin_unlock(&par->lock);
+
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static struct snd_pcm_ops s6000_pcm_ops = {
+ .open = s6000_pcm_open,
+ .close = s6000_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = s6000_pcm_hw_params,
+ .hw_free = s6000_pcm_hw_free,
+ .trigger = s6000_pcm_trigger,
+ .prepare = s6000_pcm_prepare,
+ .pointer = s6000_pcm_pointer,
+};
+
+static void s6000_pcm_free(struct snd_pcm *pcm)
+{
+ struct snd_soc_pcm_runtime *runtime = pcm->private_data;
+ struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+
+ free_irq(params->irq, pcm);
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static u64 s6000_pcm_dmamask = DMA_32BIT_MASK;
+
+static int s6000_pcm_new(struct snd_card *card,
+ struct snd_soc_dai *dai, struct snd_pcm *pcm)
+{
+ struct snd_soc_pcm_runtime *runtime = pcm->private_data;
+ struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+ int res;
+
+ if (!card->dev->dma_mask)
+ card->dev->dma_mask = &s6000_pcm_dmamask;
+ if (!card->dev->coherent_dma_mask)
+ card->dev->coherent_dma_mask = DMA_32BIT_MASK;
+
+ if (params->dma_in) {
+ s6dmac_disable_chan(DMA_MASK_DMAC(params->dma_in),
+ DMA_INDEX_CHNL(params->dma_in));
+ s6dmac_int_sources(DMA_MASK_DMAC(params->dma_in),
+ DMA_INDEX_CHNL(params->dma_in));
+ }
+
+ if (params->dma_out) {
+ s6dmac_disable_chan(DMA_MASK_DMAC(params->dma_out),
+ DMA_INDEX_CHNL(params->dma_out));
+ s6dmac_int_sources(DMA_MASK_DMAC(params->dma_out),
+ DMA_INDEX_CHNL(params->dma_out));
+ }
+
+ res = request_irq(params->irq, s6000_pcm_irq, IRQF_SHARED,
+ s6000_soc_platform.name, pcm);
+ if (res) {
+ printk(KERN_ERR "s6000-pcm couldn't get IRQ\n");
+ return res;
+ }
+
+ res = snd_pcm_lib_preallocate_pages_for_all(pcm,
+ SNDRV_DMA_TYPE_DEV,
+ card->dev,
+ S6_PCM_PREALLOCATE_SIZE,
+ S6_PCM_PREALLOCATE_MAX);
+ if (res)
+ printk(KERN_WARNING "s6000-pcm: preallocation failed\n");
+
+ spin_lock_init(¶ms->lock);
+ params->in_use = 0;
+ params->rate = -1;
+ return 0;
+}
+
+struct snd_soc_platform s6000_soc_platform = {
+ .name = "s6000-audio",
+ .pcm_ops = &s6000_pcm_ops,
+ .pcm_new = s6000_pcm_new,
+ .pcm_free = s6000_pcm_free,
+};
+EXPORT_SYMBOL_GPL(s6000_soc_platform);
+
+static int __init s6000_pcm_init(void)
+{
+ return snd_soc_register_platform(&s6000_soc_platform);
+}
+module_init(s6000_pcm_init);
+
+static void __exit s6000_pcm_exit(void)
+{
+ snd_soc_unregister_platform(&s6000_soc_platform);
+}
+module_exit(s6000_pcm_exit);
+
+MODULE_AUTHOR("Daniel Gloeckner");
+MODULE_DESCRIPTION("Stretch s6000 family PCM DMA module");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * ALSA PCM interface for the Stretch s6000 family
+ *
+ * Author: Daniel Gloeckner, <dg@emlix.com>
+ * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _S6000_PCM_H
+#define _S6000_PCM_H
+
+struct snd_soc_dai;
+struct snd_pcm_substream;
+
+struct s6000_pcm_dma_params {
+ unsigned int (*check_xrun)(struct snd_soc_dai *cpu_dai);
+ int (*trigger)(struct snd_pcm_substream *substream, int cmd, int after);
+ dma_addr_t sif_in;
+ dma_addr_t sif_out;
+ u32 dma_in;
+ u32 dma_out;
+ int irq;
+ int same_rate;
+
+ spinlock_t lock;
+ int in_use;
+ int rate;
+};
+
+extern struct snd_soc_platform s6000_soc_platform;
+
+#endif
--- /dev/null
+/*
+ * ASoC driver for Stretch s6105 IP camera platform
+ *
+ * Author: Daniel Gloeckner, <dg@emlix.com>
+ * Copyright: (C) 2009 emlix GmbH <info@emlix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <variant/dmac.h>
+
+#include "../codecs/tlv320aic3x.h"
+#include "s6000-pcm.h"
+#include "s6000-i2s.h"
+
+#define S6105_CAM_CODEC_CLOCK 12288000
+
+static int s6105_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ int ret = 0;
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBM_CFM |
+ SND_SOC_DAIFMT_NB_NF);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock */
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, S6105_CAM_CODEC_CLOCK,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops s6105_ops = {
+ .hw_params = s6105_hw_params,
+};
+
+/* s6105 machine dapm widgets */
+static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("Audio Out Differential", NULL),
+ SND_SOC_DAPM_LINE("Audio Out Stereo", NULL),
+ SND_SOC_DAPM_LINE("Audio In", NULL),
+};
+
+/* s6105 machine audio_mapnections to the codec pins */
+static const struct snd_soc_dapm_route audio_map[] = {
+ /* Audio Out connected to HPLOUT, HPLCOM, HPROUT */
+ {"Audio Out Differential", NULL, "HPLOUT"},
+ {"Audio Out Differential", NULL, "HPLCOM"},
+ {"Audio Out Stereo", NULL, "HPLOUT"},
+ {"Audio Out Stereo", NULL, "HPROUT"},
+
+ /* Audio In connected to LINE1L, LINE1R */
+ {"LINE1L", NULL, "Audio In"},
+ {"LINE1R", NULL, "Audio In"},
+};
+
+static int output_type_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = 1;
+ uinfo->value.enumerated.items = 2;
+ if (uinfo->value.enumerated.item) {
+ uinfo->value.enumerated.item = 1;
+ strcpy(uinfo->value.enumerated.name, "HPLOUT/HPROUT");
+ } else {
+ strcpy(uinfo->value.enumerated.name, "HPLOUT/HPLCOM");
+ }
+ return 0;
+}
+
+static int output_type_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.enumerated.item[0] = kcontrol->private_value;
+ return 0;
+}
+
+static int output_type_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = kcontrol->private_data;
+ unsigned int val = (ucontrol->value.enumerated.item[0] != 0);
+ char *differential = "Audio Out Differential";
+ char *stereo = "Audio Out Stereo";
+
+ if (kcontrol->private_value == val)
+ return 0;
+ kcontrol->private_value = val;
+ snd_soc_dapm_disable_pin(codec, val ? differential : stereo);
+ snd_soc_dapm_sync(codec);
+ snd_soc_dapm_enable_pin(codec, val ? stereo : differential);
+ snd_soc_dapm_sync(codec);
+
+ return 1;
+}
+
+static const struct snd_kcontrol_new audio_out_mux = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Output Mux",
+ .index = 0,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = output_type_info,
+ .get = output_type_get,
+ .put = output_type_put,
+ .private_value = 1 /* default to stereo */
+};
+
+/* Logic for a aic3x as connected on the s6105 ip camera ref design */
+static int s6105_aic3x_init(struct snd_soc_codec *codec)
+{
+ /* Add s6105 specific widgets */
+ snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
+ ARRAY_SIZE(aic3x_dapm_widgets));
+
+ /* Set up s6105 specific audio path audio_map */
+ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+
+ /* not present */
+ snd_soc_dapm_nc_pin(codec, "MONO_LOUT");
+ snd_soc_dapm_nc_pin(codec, "LINE2L");
+ snd_soc_dapm_nc_pin(codec, "LINE2R");
+
+ /* not connected */
+ snd_soc_dapm_nc_pin(codec, "MIC3L"); /* LINE2L on this chip */
+ snd_soc_dapm_nc_pin(codec, "MIC3R"); /* LINE2R on this chip */
+ snd_soc_dapm_nc_pin(codec, "LLOUT");
+ snd_soc_dapm_nc_pin(codec, "RLOUT");
+ snd_soc_dapm_nc_pin(codec, "HPRCOM");
+
+ /* always connected */
+ snd_soc_dapm_enable_pin(codec, "Audio In");
+
+ /* must correspond to audio_out_mux.private_value initializer */
+ snd_soc_dapm_disable_pin(codec, "Audio Out Differential");
+ snd_soc_dapm_sync(codec);
+ snd_soc_dapm_enable_pin(codec, "Audio Out Stereo");
+
+ snd_soc_dapm_sync(codec);
+
+ snd_ctl_add(codec->card, snd_ctl_new1(&audio_out_mux, codec));
+
+ return 0;
+}
+
+/* s6105 digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link s6105_dai = {
+ .name = "TLV320AIC31",
+ .stream_name = "AIC31",
+ .cpu_dai = &s6000_i2s_dai,
+ .codec_dai = &aic3x_dai,
+ .init = s6105_aic3x_init,
+ .ops = &s6105_ops,
+};
+
+/* s6105 audio machine driver */
+static struct snd_soc_card snd_soc_card_s6105 = {
+ .name = "Stretch IP Camera",
+ .platform = &s6000_soc_platform,
+ .dai_link = &s6105_dai,
+ .num_links = 1,
+};
+
+/* s6105 audio private data */
+static struct aic3x_setup_data s6105_aic3x_setup = {
+ .i2c_bus = 0,
+ .i2c_address = 0x18,
+};
+
+/* s6105 audio subsystem */
+static struct snd_soc_device s6105_snd_devdata = {
+ .card = &snd_soc_card_s6105,
+ .codec_dev = &soc_codec_dev_aic3x,
+ .codec_data = &s6105_aic3x_setup,
+};
+
+static struct s6000_snd_platform_data __initdata s6105_snd_data = {
+ .wide = 0,
+ .channel_in = 0,
+ .channel_out = 1,
+ .lines_in = 1,
+ .lines_out = 1,
+ .same_rate = 1,
+};
+
+static struct platform_device *s6105_snd_device;
+
+static int __init s6105_init(void)
+{
+ int ret;
+
+ s6105_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!s6105_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(s6105_snd_device, &s6105_snd_devdata);
+ s6105_snd_devdata.dev = &s6105_snd_device->dev;
+ platform_device_add_data(s6105_snd_device, &s6105_snd_data,
+ sizeof(s6105_snd_data));
+
+ ret = platform_device_add(s6105_snd_device);
+ if (ret)
+ platform_device_put(s6105_snd_device);
+
+ return ret;
+}
+
+static void __exit s6105_exit(void)
+{
+ platform_device_unregister(s6105_snd_device);
+}
+
+module_init(s6105_init);
+module_exit(s6105_exit);
+
+MODULE_AUTHOR("Daniel Gloeckner");
+MODULE_DESCRIPTION("Stretch s6105 IP camera ASoC driver");
+MODULE_LICENSE("GPL");
}
#endif
+static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
+ int ret;
+
+ if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates ||
+ machine->symmetric_rates) {
+ dev_dbg(card->dev, "Symmetry forces %dHz rate\n",
+ machine->rate);
+
+ ret = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ machine->rate,
+ machine->rate);
+ if (ret < 0) {
+ dev_err(card->dev,
+ "Unable to apply rate symmetry constraint: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
/*
* Called by ALSA when a PCM substream is opened, the runtime->hw record is
* then initialized and any private data can be allocated. This also calls
goto machine_err;
}
+ /* Symmetry only applies if we've already got an active stream. */
+ if (cpu_dai->active || codec_dai->active) {
+ ret = soc_pcm_apply_symmetry(substream);
+ if (ret != 0)
+ goto machine_err;
+ }
+
pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name);
pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates);
pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min,
}
}
+ machine->rate = params_rate(params);
+
out:
mutex_unlock(&pcm_mutex);
return ret;
{
int max = kcontrol->private_value;
- if (max == 1)
+ if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
unsigned int shift = mc->shift;
unsigned int rshift = mc->rshift;
- if (max == 1)
+ if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
(struct soc_mixer_control *)kcontrol->private_value;
int max = mc->max;
- if (max == 1)
+ if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
- if (dai->ops->set_sysclk)
+ if (dai->ops && dai->ops->set_sysclk)
return dai->ops->set_sysclk(dai, clk_id, freq, dir);
else
return -EINVAL;
int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
int div_id, int div)
{
- if (dai->ops->set_clkdiv)
+ if (dai->ops && dai->ops->set_clkdiv)
return dai->ops->set_clkdiv(dai, div_id, div);
else
return -EINVAL;
int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
int pll_id, unsigned int freq_in, unsigned int freq_out)
{
- if (dai->ops->set_pll)
+ if (dai->ops && dai->ops->set_pll)
return dai->ops->set_pll(dai, pll_id, freq_in, freq_out);
else
return -EINVAL;
*/
int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
- if (dai->ops->set_fmt)
+ if (dai->ops && dai->ops->set_fmt)
return dai->ops->set_fmt(dai, fmt);
else
return -EINVAL;
int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
unsigned int mask, int slots)
{
- if (dai->ops->set_sysclk)
+ if (dai->ops && dai->ops->set_tdm_slot)
return dai->ops->set_tdm_slot(dai, mask, slots);
else
return -EINVAL;
*/
int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
{
- if (dai->ops->set_sysclk)
+ if (dai->ops && dai->ops->set_tristate)
return dai->ops->set_tristate(dai, tristate);
else
return -EINVAL;
*/
int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
{
- if (dai->ops->digital_mute)
+ if (dai->ops && dai->ops->digital_mute)
return dai->ops->digital_mute(dai, mute);
else
return -EINVAL;
/* dapm power sequences - make this per codec in the future */
static int dapm_up_seq[] = {
- snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic,
- snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_dac,
- snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_pga,
- snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post
+ snd_soc_dapm_pre, snd_soc_dapm_supply, snd_soc_dapm_micbias,
+ snd_soc_dapm_mic, snd_soc_dapm_mux, snd_soc_dapm_value_mux,
+ snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl,
+ snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
+ snd_soc_dapm_post
};
static int dapm_down_seq[] = {
snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
snd_soc_dapm_pga, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_mixer,
snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias,
- snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_post
+ snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_supply,
+ snd_soc_dapm_post
};
static int dapm_status = 1;
case snd_soc_dapm_dac:
case snd_soc_dapm_micbias:
case snd_soc_dapm_vmid:
+ case snd_soc_dapm_supply:
p->connect = 1;
break;
/* does effect routing - dynamically connected */
path->long_name);
ret = snd_ctl_add(codec->card, path->kcontrol);
if (ret < 0) {
- printk(KERN_ERR "asoc: failed to add dapm kcontrol %s\n",
- path->long_name);
+ printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n",
+ path->long_name,
+ ret);
kfree(path->long_name);
path->long_name = NULL;
return ret;
struct snd_soc_dapm_path *path;
int con = 0;
+ if (widget->id == snd_soc_dapm_supply)
+ return 0;
+
if (widget->id == snd_soc_dapm_adc && widget->active)
return 1;
struct snd_soc_dapm_path *path;
int con = 0;
+ if (widget->id == snd_soc_dapm_supply)
+ return 0;
+
/* active stream ? */
if (widget->id == snd_soc_dapm_dac && widget->active)
return 1;
}
EXPORT_SYMBOL_GPL(dapm_reg_event);
-/*
- * Scan a single DAPM widget for a complete audio path and update the
- * power status appropriately.
+/* Standard power change method, used to apply power changes to most
+ * widgets.
*/
-static int dapm_power_widget(struct snd_soc_codec *codec, int event,
- struct snd_soc_dapm_widget *w)
+static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
{
- int in, out, power_change, power, ret;
+ int ret;
- /* vmid - no action */
- if (w->id == snd_soc_dapm_vmid)
- return 0;
+ /* call any power change event handlers */
+ if (w->event)
+ pr_debug("power %s event for %s flags %x\n",
+ w->power ? "on" : "off",
+ w->name, w->event_flags);
+
+ /* power up pre event */
+ if (w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
+ if (ret < 0)
+ return ret;
+ }
- /* active ADC */
- if (w->id == snd_soc_dapm_adc && w->active) {
+ /* power down pre event */
+ if (!w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Lower PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && !w->power)
+ dapm_set_pga(w, w->power);
+
+ dapm_update_bits(w);
+
+ /* Raise PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && w->power)
+ dapm_set_pga(w, w->power);
+
+ /* power up post event */
+ if (w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_POST_PMU);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* power down post event */
+ if (!w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/* Generic check to see if a widget should be powered.
+ */
+static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
+{
+ int in, out;
+
+ in = is_connected_input_ep(w);
+ dapm_clear_walk(w->codec);
+ out = is_connected_output_ep(w);
+ dapm_clear_walk(w->codec);
+ return out != 0 && in != 0;
+}
+
+/* Check to see if an ADC has power */
+static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
+{
+ int in;
+
+ if (w->active) {
in = is_connected_input_ep(w);
dapm_clear_walk(w->codec);
- w->power = (in != 0) ? 1 : 0;
- dapm_update_bits(w);
- return 0;
+ return in != 0;
+ } else {
+ return dapm_generic_check_power(w);
}
+}
- /* active DAC */
- if (w->id == snd_soc_dapm_dac && w->active) {
+/* Check to see if a DAC has power */
+static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
+{
+ int out;
+
+ if (w->active) {
out = is_connected_output_ep(w);
dapm_clear_walk(w->codec);
- w->power = (out != 0) ? 1 : 0;
- dapm_update_bits(w);
- return 0;
+ return out != 0;
+ } else {
+ return dapm_generic_check_power(w);
+ }
+}
+
+/* Check to see if a power supply is needed */
+static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_path *path;
+ int power = 0;
+
+ /* Check if one of our outputs is connected */
+ list_for_each_entry(path, &w->sinks, list_source) {
+ if (path->sink && path->sink->power_check &&
+ path->sink->power_check(path->sink)) {
+ power = 1;
+ break;
+ }
}
- /* pre and post event widgets */
- if (w->id == snd_soc_dapm_pre) {
+ dapm_clear_walk(w->codec);
+
+ return power;
+}
+
+/*
+ * Scan a single DAPM widget for a complete audio path and update the
+ * power status appropriately.
+ */
+static int dapm_power_widget(struct snd_soc_codec *codec, int event,
+ struct snd_soc_dapm_widget *w)
+{
+ int power, ret;
+
+ switch (w->id) {
+ case snd_soc_dapm_pre:
if (!w->event)
return 0;
return ret;
}
return 0;
- }
- if (w->id == snd_soc_dapm_post) {
+
+ case snd_soc_dapm_post:
if (!w->event)
return 0;
return ret;
}
return 0;
- }
-
- /* all other widgets */
- in = is_connected_input_ep(w);
- dapm_clear_walk(w->codec);
- out = is_connected_output_ep(w);
- dapm_clear_walk(w->codec);
- power = (out != 0 && in != 0) ? 1 : 0;
- power_change = (w->power == power) ? 0 : 1;
- w->power = power;
- if (!power_change)
- return 0;
-
- /* call any power change event handlers */
- if (w->event)
- pr_debug("power %s event for %s flags %x\n",
- w->power ? "on" : "off",
- w->name, w->event_flags);
-
- /* power up pre event */
- if (power && w->event &&
- (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
- if (ret < 0)
- return ret;
- }
-
- /* power down pre event */
- if (!power && w->event &&
- (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
- if (ret < 0)
- return ret;
+ default:
+ break;
}
- /* Lower PGA volume to reduce pops */
- if (w->id == snd_soc_dapm_pga && !power)
- dapm_set_pga(w, power);
-
- dapm_update_bits(w);
-
- /* Raise PGA volume to reduce pops */
- if (w->id == snd_soc_dapm_pga && power)
- dapm_set_pga(w, power);
-
- /* power up post event */
- if (power && w->event &&
- (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_POST_PMU);
- if (ret < 0)
- return ret;
- }
+ if (!w->power_check)
+ return 0;
- /* power down post event */
- if (!power && w->event &&
- (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
- if (ret < 0)
- return ret;
- }
+ power = w->power_check(w);
+ if (w->power == power)
+ return 0;
+ w->power = power;
- return 0;
+ return dapm_generic_apply_power(w);
}
/*
case snd_soc_dapm_pga:
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
+ case snd_soc_dapm_supply:
if (w->name) {
in = is_connected_input_ep(w);
dapm_clear_walk(w->codec);
case snd_soc_dapm_pga:
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
+ case snd_soc_dapm_supply:
if (w->name)
count += sprintf(buf + count, "%s: %s\n",
w->name, w->power ? "On":"Off");
case snd_soc_dapm_vmid:
case snd_soc_dapm_pre:
case snd_soc_dapm_post:
+ case snd_soc_dapm_supply:
list_add(&path->list, &codec->dapm_paths);
list_add(&path->list_sink, &wsink->sources);
list_add(&path->list_source, &wsource->sinks);
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
+ w->power_check = dapm_generic_check_power;
dapm_new_mixer(codec, w);
break;
case snd_soc_dapm_mux:
case snd_soc_dapm_value_mux:
+ w->power_check = dapm_generic_check_power;
dapm_new_mux(codec, w);
break;
case snd_soc_dapm_adc:
+ w->power_check = dapm_adc_check_power;
+ break;
case snd_soc_dapm_dac:
+ w->power_check = dapm_dac_check_power;
+ break;
case snd_soc_dapm_pga:
+ w->power_check = dapm_generic_check_power;
dapm_new_pga(codec, w);
break;
case snd_soc_dapm_input:
case snd_soc_dapm_hp:
case snd_soc_dapm_mic:
case snd_soc_dapm_line:
+ w->power_check = dapm_generic_check_power;
+ break;
+ case snd_soc_dapm_supply:
+ w->power_check = dapm_supply_check_power;
case snd_soc_dapm_vmid:
case snd_soc_dapm_pre:
case snd_soc_dapm_post:
git.samba.org / sfrench / cifs-2.6.git / commitdiff