*/
#include <stddef.h>
#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#include <asm/pmac_low_i2c.h>
#include <asm/prom.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/mutex.h>
+
MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("tas codec driver for snd-aoa");
#include "snd-aoa-codec-tas.h"
#include "snd-aoa-codec-tas-gain-table.h"
+#include "snd-aoa-codec-tas-basstreble.h"
#include "../aoa.h"
#include "../soundbus/soundbus.h"
-
#define PFX "snd-aoa-codec-tas: "
+
struct tas {
struct aoa_codec codec;
struct i2c_client i2c;
- u32 muted_l:1, muted_r:1,
- controls_created:1;
+ u32 mute_l:1, mute_r:1 ,
+ controls_created:1 ,
+ drc_enabled:1,
+ hw_enabled:1;
u8 cached_volume_l, cached_volume_r;
u8 mixer_l[3], mixer_r[3];
+ u8 bass, treble;
u8 acr;
+ int drc_range;
+ /* protects hardware access against concurrency from
+ * userspace when hitting controls and during
+ * codec init/suspend/resume */
+ struct mutex mtx;
};
+static int tas_reset_init(struct tas *tas);
+
static struct tas *codec_to_tas(struct aoa_codec *codec)
{
return container_of(codec, struct tas, codec);
return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, data);
}
+static void tas3004_set_drc(struct tas *tas)
+{
+ unsigned char val[6];
+
+ if (tas->drc_enabled)
+ val[0] = 0x50; /* 3:1 above threshold */
+ else
+ val[0] = 0x51; /* disabled */
+ val[1] = 0x02; /* 1:1 below threshold */
+ if (tas->drc_range > 0xef)
+ val[2] = 0xef;
+ else if (tas->drc_range < 0)
+ val[2] = 0x00;
+ else
+ val[2] = tas->drc_range;
+ val[3] = 0xb0;
+ val[4] = 0x60;
+ val[5] = 0xa0;
+
+ tas_write_reg(tas, TAS_REG_DRC, 6, val);
+}
+
+static void tas_set_treble(struct tas *tas)
+{
+ u8 tmp;
+
+ tmp = tas3004_treble(tas->treble);
+ tas_write_reg(tas, TAS_REG_TREBLE, 1, &tmp);
+}
+
+static void tas_set_bass(struct tas *tas)
+{
+ u8 tmp;
+
+ tmp = tas3004_bass(tas->bass);
+ tas_write_reg(tas, TAS_REG_BASS, 1, &tmp);
+}
+
static void tas_set_volume(struct tas *tas)
{
u8 block[6];
if (left > 177) left = 177;
if (right > 177) right = 177;
- if (tas->muted_l) left = 0;
- if (tas->muted_r) right = 0;
+ if (tas->mute_l) left = 0;
+ if (tas->mute_r) right = 0;
/* analysing the volume and mixer tables shows
* that they are similar enough when we shift
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
+ mutex_lock(&tas->mtx);
ucontrol->value.integer.value[0] = tas->cached_volume_l;
ucontrol->value.integer.value[1] = tas->cached_volume_r;
+ mutex_unlock(&tas->mtx);
return 0;
}
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
+ mutex_lock(&tas->mtx);
if (tas->cached_volume_l == ucontrol->value.integer.value[0]
- && tas->cached_volume_r == ucontrol->value.integer.value[1])
+ && tas->cached_volume_r == ucontrol->value.integer.value[1]) {
+ mutex_unlock(&tas->mtx);
return 0;
+ }
tas->cached_volume_l = ucontrol->value.integer.value[0];
tas->cached_volume_r = ucontrol->value.integer.value[1];
- tas_set_volume(tas);
+ if (tas->hw_enabled)
+ tas_set_volume(tas);
+ mutex_unlock(&tas->mtx);
return 1;
}
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
- ucontrol->value.integer.value[0] = !tas->muted_l;
- ucontrol->value.integer.value[1] = !tas->muted_r;
+ mutex_lock(&tas->mtx);
+ ucontrol->value.integer.value[0] = !tas->mute_l;
+ ucontrol->value.integer.value[1] = !tas->mute_r;
+ mutex_unlock(&tas->mtx);
return 0;
}
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
- if (tas->muted_l == !ucontrol->value.integer.value[0]
- && tas->muted_r == !ucontrol->value.integer.value[1])
+ mutex_lock(&tas->mtx);
+ if (tas->mute_l == !ucontrol->value.integer.value[0]
+ && tas->mute_r == !ucontrol->value.integer.value[1]) {
+ mutex_unlock(&tas->mtx);
return 0;
+ }
- tas->muted_l = !ucontrol->value.integer.value[0];
- tas->muted_r = !ucontrol->value.integer.value[1];
- tas_set_volume(tas);
+ tas->mute_l = !ucontrol->value.integer.value[0];
+ tas->mute_r = !ucontrol->value.integer.value[1];
+ if (tas->hw_enabled)
+ tas_set_volume(tas);
+ mutex_unlock(&tas->mtx);
return 1;
}
struct tas *tas = snd_kcontrol_chip(kcontrol);
int idx = kcontrol->private_value;
+ mutex_lock(&tas->mtx);
ucontrol->value.integer.value[0] = tas->mixer_l[idx];
ucontrol->value.integer.value[1] = tas->mixer_r[idx];
+ mutex_unlock(&tas->mtx);
return 0;
}
struct tas *tas = snd_kcontrol_chip(kcontrol);
int idx = kcontrol->private_value;
+ mutex_lock(&tas->mtx);
if (tas->mixer_l[idx] == ucontrol->value.integer.value[0]
- && tas->mixer_r[idx] == ucontrol->value.integer.value[1])
+ && tas->mixer_r[idx] == ucontrol->value.integer.value[1]) {
+ mutex_unlock(&tas->mtx);
return 0;
+ }
tas->mixer_l[idx] = ucontrol->value.integer.value[0];
tas->mixer_r[idx] = ucontrol->value.integer.value[1];
- tas_set_mixer(tas);
+ if (tas->hw_enabled)
+ tas_set_mixer(tas);
+ mutex_unlock(&tas->mtx);
return 1;
}
.private_value = idx, \
}
-MIXER_CONTROL(pcm1, "PCM1", 0);
+MIXER_CONTROL(pcm1, "PCM", 0);
MIXER_CONTROL(monitor, "Monitor", 2);
+static int tas_snd_drc_range_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = TAS3004_DRC_MAX;
+ return 0;
+}
+
+static int tas_snd_drc_range_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ ucontrol->value.integer.value[0] = tas->drc_range;
+ mutex_unlock(&tas->mtx);
+ return 0;
+}
+
+static int tas_snd_drc_range_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ if (tas->drc_range == ucontrol->value.integer.value[0]) {
+ mutex_unlock(&tas->mtx);
+ return 0;
+ }
+
+ tas->drc_range = ucontrol->value.integer.value[0];
+ if (tas->hw_enabled)
+ tas3004_set_drc(tas);
+ mutex_unlock(&tas->mtx);
+ return 1;
+}
+
+static struct snd_kcontrol_new drc_range_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "DRC Range",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = tas_snd_drc_range_info,
+ .get = tas_snd_drc_range_get,
+ .put = tas_snd_drc_range_put,
+};
+
+static int tas_snd_drc_switch_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int tas_snd_drc_switch_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ ucontrol->value.integer.value[0] = tas->drc_enabled;
+ mutex_unlock(&tas->mtx);
+ return 0;
+}
+
+static int tas_snd_drc_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ if (tas->drc_enabled == ucontrol->value.integer.value[0]) {
+ mutex_unlock(&tas->mtx);
+ return 0;
+ }
+
+ tas->drc_enabled = ucontrol->value.integer.value[0];
+ if (tas->hw_enabled)
+ tas3004_set_drc(tas);
+ mutex_unlock(&tas->mtx);
+ return 1;
+}
+
+static struct snd_kcontrol_new drc_switch_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "DRC Range Switch",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = tas_snd_drc_switch_info,
+ .get = tas_snd_drc_switch_get,
+ .put = tas_snd_drc_switch_put,
+};
+
static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
+ mutex_lock(&tas->mtx);
ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B);
+ mutex_unlock(&tas->mtx);
return 0;
}
struct snd_ctl_elem_value *ucontrol)
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
- int oldacr = tas->acr;
+ int oldacr;
+
+ mutex_lock(&tas->mtx);
+ oldacr = tas->acr;
- tas->acr &= ~TAS_ACR_INPUT_B;
+ /*
+ * Despite what the data sheet says in one place, the
+ * TAS_ACR_B_MONAUREAL bit forces mono output even when
+ * input A (line in) is selected.
+ */
+ tas->acr &= ~(TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL);
if (ucontrol->value.enumerated.item[0])
- tas->acr |= TAS_ACR_INPUT_B;
- if (oldacr == tas->acr)
+ tas->acr |= TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL |
+ TAS_ACR_B_MON_SEL_RIGHT;
+ if (oldacr == tas->acr) {
+ mutex_unlock(&tas->mtx);
return 0;
- tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
+ }
+ if (tas->hw_enabled)
+ tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
+ mutex_unlock(&tas->mtx);
return 1;
}
.put = tas_snd_capture_source_put,
};
+static int tas_snd_treble_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = TAS3004_TREBLE_MIN;
+ uinfo->value.integer.max = TAS3004_TREBLE_MAX;
+ return 0;
+}
+
+static int tas_snd_treble_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ ucontrol->value.integer.value[0] = tas->treble;
+ mutex_unlock(&tas->mtx);
+ return 0;
+}
+
+static int tas_snd_treble_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ if (tas->treble == ucontrol->value.integer.value[0]) {
+ mutex_unlock(&tas->mtx);
+ return 0;
+ }
+
+ tas->treble = ucontrol->value.integer.value[0];
+ if (tas->hw_enabled)
+ tas_set_treble(tas);
+ mutex_unlock(&tas->mtx);
+ return 1;
+}
+
+static struct snd_kcontrol_new treble_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Treble",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = tas_snd_treble_info,
+ .get = tas_snd_treble_get,
+ .put = tas_snd_treble_put,
+};
+
+static int tas_snd_bass_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = TAS3004_BASS_MIN;
+ uinfo->value.integer.max = TAS3004_BASS_MAX;
+ return 0;
+}
+
+static int tas_snd_bass_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ ucontrol->value.integer.value[0] = tas->bass;
+ mutex_unlock(&tas->mtx);
+ return 0;
+}
+
+static int tas_snd_bass_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct tas *tas = snd_kcontrol_chip(kcontrol);
+
+ mutex_lock(&tas->mtx);
+ if (tas->bass == ucontrol->value.integer.value[0]) {
+ mutex_unlock(&tas->mtx);
+ return 0;
+ }
+
+ tas->bass = ucontrol->value.integer.value[0];
+ if (tas->hw_enabled)
+ tas_set_bass(tas);
+ mutex_unlock(&tas->mtx);
+ return 1;
+}
+
+static struct snd_kcontrol_new bass_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Bass",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+ .info = tas_snd_bass_info,
+ .get = tas_snd_bass_get,
+ .put = tas_snd_bass_put,
+};
static struct transfer_info tas_transfers[] = {
{
static int tas_reset_init(struct tas *tas)
{
u8 tmp;
+
+ tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
+ msleep(5);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
- msleep(1);
+ msleep(5);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1);
- msleep(1);
+ msleep(20);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
- msleep(1);
-
- tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
- tas->acr |= TAS_ACR_B_MONAUREAL | TAS_ACR_B_MON_SEL_RIGHT;
- if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
- return -ENODEV;
+ msleep(10);
+ tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT;
if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp))
- return -ENODEV;
+ goto outerr;
+
+ tas->acr |= TAS_ACR_ANALOG_PDOWN;
+ if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
+ goto outerr;
tmp = 0;
if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp))
- return -ENODEV;
+ goto outerr;
+
+ tas3004_set_drc(tas);
+
+ /* Set treble & bass to 0dB */
+ tas->treble = TAS3004_TREBLE_ZERO;
+ tas->bass = TAS3004_BASS_ZERO;
+ tas_set_treble(tas);
+ tas_set_bass(tas);
+
+ tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
+ if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
+ goto outerr;
return 0;
+ outerr:
+ return -ENODEV;
+}
+
+static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock)
+{
+ struct tas *tas = cii->codec_data;
+
+ switch(clock) {
+ case CLOCK_SWITCH_PREPARE_SLAVE:
+ /* Clocks are going away, mute mute mute */
+ tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
+ tas->hw_enabled = 0;
+ break;
+ case CLOCK_SWITCH_SLAVE:
+ /* Clocks are back, re-init the codec */
+ mutex_lock(&tas->mtx);
+ tas_reset_init(tas);
+ tas_set_volume(tas);
+ tas_set_mixer(tas);
+ tas->hw_enabled = 1;
+ tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
+ mutex_unlock(&tas->mtx);
+ break;
+ default:
+ /* doesn't happen as of now */
+ return -EINVAL;
+ }
+ return 0;
}
/* we are controlled via i2c and assume that is always up
* our i2c device is suspended, and then take note of that! */
static int tas_suspend(struct tas *tas)
{
+ mutex_lock(&tas->mtx);
+ tas->hw_enabled = 0;
tas->acr |= TAS_ACR_ANALOG_PDOWN;
tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
+ mutex_unlock(&tas->mtx);
return 0;
}
static int tas_resume(struct tas *tas)
{
/* reset codec */
+ mutex_lock(&tas->mtx);
tas_reset_init(tas);
tas_set_volume(tas);
tas_set_mixer(tas);
+ tas->hw_enabled = 1;
+ mutex_unlock(&tas->mtx);
return 0;
}
.bus_factor = 64,
.owner = THIS_MODULE,
.usable = tas_usable,
+ .switch_clock = tas_switch_clock,
#ifdef CONFIG_PM
.suspend = _tas_suspend,
.resume = _tas_resume,
return -EINVAL;
}
+ mutex_lock(&tas->mtx);
if (tas_reset_init(tas)) {
printk(KERN_ERR PFX "tas failed to initialise\n");
+ mutex_unlock(&tas->mtx);
return -ENXIO;
}
+ tas->hw_enabled = 1;
+ mutex_unlock(&tas->mtx);
if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev,
aoa_get_card(),
if (err)
goto error;
+ err = aoa_snd_ctl_add(snd_ctl_new1(&drc_range_control, tas));
+ if (err)
+ goto error;
+
+ err = aoa_snd_ctl_add(snd_ctl_new1(&drc_switch_control, tas));
+ if (err)
+ goto error;
+
+ err = aoa_snd_ctl_add(snd_ctl_new1(&treble_control, tas));
+ if (err)
+ goto error;
+
+ err = aoa_snd_ctl_add(snd_ctl_new1(&bass_control, tas));
+ if (err)
+ goto error;
+
return 0;
error:
tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas);
if (!tas)
return -ENOMEM;
+ mutex_init(&tas->mtx);
tas->i2c.driver = &tas_driver;
tas->i2c.adapter = adapter;
tas->i2c.addr = addr;
+ /* seems that half is a saner default */
+ tas->drc_range = TAS3004_DRC_MAX / 2;
strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE-1);
if (i2c_attach_client(&tas->i2c)) {
if (aoa_codec_register(&tas->codec)) {
goto detach;
}
- printk(KERN_DEBUG "snd-aoa-codec-tas: created and attached tas instance\n");
+ printk(KERN_DEBUG
+ "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n",
+ addr, node->full_name);
return 0;
detach:
i2c_detach_client(&tas->i2c);
fail:
+ mutex_destroy(&tas->mtx);
kfree(tas);
return -EINVAL;
}
/* power down codec chip */
tas_write_reg(tas, TAS_REG_ACR, 1, &tmp);
+ mutex_destroy(&tas->mtx);
kfree(tas);
return 0;
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff