--- /dev/null
+* Qualcomm Technologies LPASS CPU DAI
+
+This node models the Qualcomm Technologies Low-Power Audio SubSystem (LPASS).
+
+Required properties:
+
+- compatible : "qcom,lpass-cpu"
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : A list which must include the following entries:
+ * "ahbix-clk"
+ * "mi2s-osr-clk"
+ * "mi2s-bit-clk"
+- interrupts : Must contain an entry for each entry in
+ interrupt-names.
+- interrupt-names : A list which must include the following entries:
+ * "lpass-irq-lpaif"
+- pinctrl-N : One property must exist for each entry in
+ pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
+ for details of the property values.
+- pinctrl-names : Must contain a "default" entry.
+- reg : Must contain an address for each entry in reg-names.
+- reg-names : A list which must include the following entries:
+ * "lpass-lpaif"
+
+Optional properties:
+
+- qcom,adsp : Phandle for the audio DSP node
+
+Example:
+
+lpass@28100000 {
+ compatible = "qcom,lpass-cpu";
+ clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>;
+ clock-names = "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk";
+ interrupts = <0 85 1>;
+ interrupt-names = "lpass-irq-lpaif";
+ pinctrl-names = "default", "idle";
+ pinctrl-0 = <&mi2s_default>;
+ pinctrl-1 = <&mi2s_idle>;
+ reg = <0x28100000 0x10000>;
+ reg-names = "lpass-lpaif";
+ qcom,adsp = <&adsp>;
+};
- shared-pin : if shared clock pin
- pio-transfer : use PIO transfer mode
- no-busif : BUSIF is not ussed when [mem -> SSI] via DMA case
+- dma : Should contain Audio DMAC entry
+- dma-names : SSI case "rx" (=playback), "tx" (=capture)
+ SSIU case "rxu" (=playback), "txu" (=capture)
SRC subnode properties:
-no properties at this point
+- dma : Should contain Audio DMAC entry
+- dma-names : "rx" (=playback), "tx" (=capture)
+
+DVC subnode properties:
+- dma : Should contain Audio DMAC entry
+- dma-names : "tx" (=playback/capture)
DAI subnode properties:
- playback : list of playback modules
reg = <0 0xec500000 0 0x1000>, /* SCU */
<0 0xec5a0000 0 0x100>, /* ADG */
<0 0xec540000 0 0x1000>, /* SSIU */
- <0 0xec541000 0 0x1280>; /* SSI */
+ <0 0xec541000 0 0x1280>, /* SSI */
+ <0 0xec740000 0 0x200>; /* Audio DMAC peri peri*/
+ reg-names = "scu", "adg", "ssiu", "ssi", "audmapp";
+
+ clocks = <&mstp10_clks R8A7790_CLK_SSI_ALL>,
+ <&mstp10_clks R8A7790_CLK_SSI9>, <&mstp10_clks R8A7790_CLK_SSI8>,
+ <&mstp10_clks R8A7790_CLK_SSI7>, <&mstp10_clks R8A7790_CLK_SSI6>,
+ <&mstp10_clks R8A7790_CLK_SSI5>, <&mstp10_clks R8A7790_CLK_SSI4>,
+ <&mstp10_clks R8A7790_CLK_SSI3>, <&mstp10_clks R8A7790_CLK_SSI2>,
+ <&mstp10_clks R8A7790_CLK_SSI1>, <&mstp10_clks R8A7790_CLK_SSI0>,
+ <&mstp10_clks R8A7790_CLK_SCU_SRC9>, <&mstp10_clks R8A7790_CLK_SCU_SRC8>,
+ <&mstp10_clks R8A7790_CLK_SCU_SRC7>, <&mstp10_clks R8A7790_CLK_SCU_SRC6>,
+ <&mstp10_clks R8A7790_CLK_SCU_SRC5>, <&mstp10_clks R8A7790_CLK_SCU_SRC4>,
+ <&mstp10_clks R8A7790_CLK_SCU_SRC3>, <&mstp10_clks R8A7790_CLK_SCU_SRC2>,
+ <&mstp10_clks R8A7790_CLK_SCU_SRC1>, <&mstp10_clks R8A7790_CLK_SCU_SRC0>,
+ <&mstp10_clks R8A7790_CLK_SCU_DVC0>, <&mstp10_clks R8A7790_CLK_SCU_DVC1>,
+ <&audio_clk_a>, <&audio_clk_b>, <&audio_clk_c>, <&m2_clk>;
+ clock-names = "ssi-all",
+ "ssi.9", "ssi.8", "ssi.7", "ssi.6", "ssi.5",
+ "ssi.4", "ssi.3", "ssi.2", "ssi.1", "ssi.0",
+ "src.9", "src.8", "src.7", "src.6", "src.5",
+ "src.4", "src.3", "src.2", "src.1", "src.0",
+ "dvc.0", "dvc.1",
+ "clk_a", "clk_b", "clk_c", "clk_i";
rcar_sound,dvc {
- dvc0: dvc@0 { };
- dvc1: dvc@1 { };
+ dvc0: dvc@0 {
+ dmas = <&audma0 0xbc>;
+ dma-names = "tx";
+ };
+ dvc1: dvc@1 {
+ dmas = <&audma0 0xbe>;
+ dma-names = "tx";
+ };
};
rcar_sound,src {
- src0: src@0 { };
- src1: src@1 { };
- src2: src@2 { };
- src3: src@3 { };
- src4: src@4 { };
- src5: src@5 { };
- src6: src@6 { };
- src7: src@7 { };
- src8: src@8 { };
- src9: src@9 { };
+ src0: src@0 {
+ interrupts = <0 352 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x85>, <&audma1 0x9a>;
+ dma-names = "rx", "tx";
+ };
+ src1: src@1 {
+ interrupts = <0 353 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x87>, <&audma1 0x9c>;
+ dma-names = "rx", "tx";
+ };
+ src2: src@2 {
+ interrupts = <0 354 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x89>, <&audma1 0x9e>;
+ dma-names = "rx", "tx";
+ };
+ src3: src@3 {
+ interrupts = <0 355 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8b>, <&audma1 0xa0>;
+ dma-names = "rx", "tx";
+ };
+ src4: src@4 {
+ interrupts = <0 356 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8d>, <&audma1 0xb0>;
+ dma-names = "rx", "tx";
+ };
+ src5: src@5 {
+ interrupts = <0 357 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8f>, <&audma1 0xb2>;
+ dma-names = "rx", "tx";
+ };
+ src6: src@6 {
+ interrupts = <0 358 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x91>, <&audma1 0xb4>;
+ dma-names = "rx", "tx";
+ };
+ src7: src@7 {
+ interrupts = <0 359 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x93>, <&audma1 0xb6>;
+ dma-names = "rx", "tx";
+ };
+ src8: src@8 {
+ interrupts = <0 360 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x95>, <&audma1 0xb8>;
+ dma-names = "rx", "tx";
+ };
+ src9: src@9 {
+ interrupts = <0 361 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x97>, <&audma1 0xba>;
+ dma-names = "rx", "tx";
+ };
};
rcar_sound,ssi {
ssi0: ssi@0 {
interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi1: ssi@1 {
interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi2: ssi@2 {
interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi3: ssi@3 {
interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi4: ssi@4 {
interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi5: ssi@5 {
interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi6: ssi@6 {
interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi7: ssi@7 {
interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi8: ssi@8 {
interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
ssi9: ssi@9 {
interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
+ dma-names = "rx", "tx", "rxu", "txu";
};
};
--- /dev/null
+Renesas Sampling Rate Convert Sound Card:
+
+Renesas Sampling Rate Convert Sound Card specifies audio DAI connections of SoC <-> codec.
+
+Required properties:
+
+- compatible : "renesas,rsrc-card,<board>"
+ Examples with soctypes are:
+ - "renesas,rsrc-card,lager"
+ - "renesas,rsrc-card,koelsch"
+Optional properties:
+
+- card_name : User specified audio sound card name, one string
+ property.
+- cpu : CPU sub-node
+- codec : CODEC sub-node
+
+Optional subnode properties:
+
+- format : CPU/CODEC common audio format.
+ "i2s", "right_j", "left_j" , "dsp_a"
+ "dsp_b", "ac97", "pdm", "msb", "lsb"
+- frame-master : Indicates dai-link frame master.
+ phandle to a cpu or codec subnode.
+- bitclock-master : Indicates dai-link bit clock master.
+ phandle to a cpu or codec subnode.
+- bitclock-inversion : bool property. Add this if the
+ dai-link uses bit clock inversion.
+- frame-inversion : bool property. Add this if the
+ dai-link uses frame clock inversion.
+- convert-rate : platform specified sampling rate convert
+
+Required CPU/CODEC subnodes properties:
+
+- sound-dai : phandle and port of CPU/CODEC
+
+Optional CPU/CODEC subnodes properties:
+
+- clocks / system-clock-frequency : specify subnode's clock if needed.
+ it can be specified via "clocks" if system has
+ clock node (= common clock), or "system-clock-frequency"
+ (if system doens't support common clock)
+ If a clock is specified, it is
+ enabled with clk_prepare_enable()
+ in dai startup() and disabled with
+ clk_disable_unprepare() in dai
+ shutdown().
+
+Example
+
+sound {
+ compatible = "renesas,rsrc-card,lager";
+
+ card-name = "rsnd-ak4643";
+ format = "left_j";
+ bitclock-master = <&sndcodec>;
+ frame-master = <&sndcodec>;
+
+ sndcpu: cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ sndcodec: codec {
+ sound-dai = <&ak4643>;
+ system-clock-frequency = <11289600>;
+ };
+};
--- /dev/null
+* Sound complex for Storm boards
+
+Models a soundcard for Storm boards with the Qualcomm Technologies IPQ806x SOC
+connected to a MAX98357A DAC via I2S.
+
+Required properties:
+
+- compatible : "google,storm-audio"
+- cpu : Phandle of the CPU DAI
+- codec : Phandle of the codec DAI
+
+Optional properties:
+
+- qcom,model : The user-visible name of this sound card.
+
+Example:
+
+sound {
+ compatible = "google,storm-audio";
+ qcom,model = "ipq806x-storm";
+ cpu = <&lpass_cpu>;
+ codec = <&max98357a>;
+};
F: include/linux/ipmi*
F: include/uapi/linux/ipmi*
+QCOM AUDIO (ASoC) DRIVERS
+M: Patrick Lai <plai@codeaurora.org>
+M: Banajit Goswami <bgoswami@codeaurora.org>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+S: Supported
+F: sound/soc/qcom/
+
IPS SCSI RAID DRIVER
M: Adaptec OEM Raid Solutions <aacraid@adaptec.com>
L: linux-scsi@vger.kernel.org
source "sound/soc/intel/Kconfig"
source "sound/soc/mxs/Kconfig"
source "sound/soc/pxa/Kconfig"
+source "sound/soc/qcom/Kconfig"
source "sound/soc/rockchip/Kconfig"
source "sound/soc/samsung/Kconfig"
source "sound/soc/sh/Kconfig"
obj-$(CONFIG_SND_SOC) += omap/
obj-$(CONFIG_SND_SOC) += kirkwood/
obj-$(CONFIG_SND_SOC) += pxa/
+obj-$(CONFIG_SND_SOC) += qcom/
obj-$(CONFIG_SND_SOC) += rockchip/
obj-$(CONFIG_SND_SOC) += samsung/
obj-$(CONFIG_SND_SOC) += sh/
if (jack) {
/* enable IRQ */
- if (rt286->jack->status | SND_JACK_HEADPHONE)
+ if (rt286->jack->status & SND_JACK_HEADPHONE)
snd_soc_dapm_force_enable_pin(&codec->dapm, "LDO1");
regmap_update_bits(rt286->regmap, RT286_IRQ_CTRL, 0x2, 0x2);
/* Send an initial empty report */
struct rt286_priv *rt286 = snd_soc_codec_get_drvdata(codec);
rt286->codec = codec;
- codec->dapm.bias_level = SND_SOC_BIAS_OFF;
if (rt286->i2c->irq) {
regmap_update_bits(rt286->regmap,
{
struct rt286_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct rt286_priv *rt286;
- int i, ret;
+ int i, ret, val;
rt286 = devm_kzalloc(&i2c->dev, sizeof(*rt286),
GFP_KERNEL);
return ret;
}
- regmap_read(rt286->regmap,
- RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &ret);
- if (ret != RT286_VENDOR_ID && ret != RT288_VENDOR_ID) {
+ ret = regmap_read(rt286->regmap,
+ RT286_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "I2C error %d\n", ret);
+ return ret;
+ }
+ if (val != RT286_VENDOR_ID && val != RT288_VENDOR_ID) {
dev_err(&i2c->dev,
- "Device with ID register %x is not rt286\n", ret);
+ "Device with ID register %x is not rt286\n", val);
return -ENODEV;
}
rt286->i2c = i2c;
i2c_set_clientdata(i2c, rt286);
+ /* restore codec default */
+ for (i = 0; i < INDEX_CACHE_SIZE; i++)
+ regmap_write(rt286->regmap, rt286->index_cache[i].reg,
+ rt286->index_cache[i].def);
+ for (i = 0; i < ARRAY_SIZE(rt286_reg); i++)
+ regmap_write(rt286->regmap, rt286_reg[i].reg,
+ rt286_reg[i].def);
+
if (pdata)
rt286->pdata = *pdata;
select SND_OMAP_SOC_MCPDM
select SND_SOC_TWL6040
select SND_SOC_DMIC
- select COMMON_CLK_PALMAS if SOC_OMAP5
+ select COMMON_CLK_PALMAS if MFD_PALMAS
help
Say Y if you want to add support for SoC audio on OMAP boards using
ABE and twl6040 codec. This driver currently supports:
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->codec;
snd_pcm_hw_constraint_minmax(runtime,
SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
- n810_ext_control(&codec->dapm);
+ n810_ext_control(&rtd->card->dapm);
return clk_prepare_enable(sys_clkout2);
}
n810_get_input, n810_set_input),
};
-static int n810_aic33_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- /* Not connected */
- snd_soc_dapm_nc_pin(dapm, "MONO_LOUT");
- snd_soc_dapm_nc_pin(dapm, "HPLCOM");
- snd_soc_dapm_nc_pin(dapm, "HPRCOM");
- snd_soc_dapm_nc_pin(dapm, "MIC3L");
- snd_soc_dapm_nc_pin(dapm, "MIC3R");
- snd_soc_dapm_nc_pin(dapm, "LINE1R");
- snd_soc_dapm_nc_pin(dapm, "LINE2L");
- snd_soc_dapm_nc_pin(dapm, "LINE2R");
-
- return 0;
-}
-
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link n810_dai = {
.name = "TLV320AIC33",
.codec_dai_name = "tlv320aic3x-hifi",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM,
- .init = n810_aic33_init,
.ops = &n810_ops,
};
.num_dapm_widgets = ARRAY_SIZE(aic33_dapm_widgets),
.dapm_routes = audio_map,
.num_dapm_routes = ARRAY_SIZE(audio_map),
+ .fully_routed = true,
};
static struct platform_device *n810_snd_device;
iec->status[0] |= IEC958_AES0_CON_EMPHASIS_NONE;
- iec->status[0] |= IEC958_AES1_PRO_MODE_NOTID;
-
iec->status[1] = IEC958_AES1_CON_GENERAL;
iec->status[2] |= IEC958_AES2_CON_SOURCE_UNSPEC;
--- /dev/null
+config SND_SOC_QCOM
+ tristate "ASoC support for QCOM platforms"
+ help
+ Say Y or M if you want to add support to use audio devices
+ in Qualcomm Technologies SOC-based platforms.
+
+config SND_SOC_LPASS_CPU
+ tristate
+ depends on SND_SOC_QCOM
+ select REGMAP_MMIO
+
+config SND_SOC_LPASS_PLATFORM
+ tristate
+ depends on SND_SOC_QCOM
+ select REGMAP_MMIO
+
+config SND_SOC_STORM
+ tristate "ASoC I2S support for Storm boards"
+ depends on (ARCH_QCOM && SND_SOC_QCOM) || COMPILE_TEST
+ select SND_SOC_LPASS_CPU
+ select SND_SOC_LPASS_PLATFORM
+ select SND_SOC_MAX98357A
+ help
+ Say Y or M if you want add support for SoC audio on the
+ Qualcomm Technologies IPQ806X-based Storm board.
--- /dev/null
+# Platform
+snd-soc-lpass-cpu-objs := lpass-cpu.o
+snd-soc-lpass-platform-objs := lpass-platform.o
+
+obj-$(CONFIG_SND_SOC_LPASS_CPU) += snd-soc-lpass-cpu.o
+obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
+
+# Machine
+snd-soc-storm-objs := storm.o
+
+obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
--- /dev/null
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * lpass-cpu.c -- ALSA SoC CPU DAI driver for QTi LPASS
+ */
+
+#include <linux/clk.h>
+#include <linux/compiler.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include "lpass-lpaif-ipq806x.h"
+#include "lpass.h"
+
+static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ ret = clk_set_rate(drvdata->mi2s_osr_clk, freq);
+ if (ret)
+ dev_err(dai->dev, "%s() error setting mi2s osrclk to %u: %d\n",
+ __func__, freq, ret);
+
+ return ret;
+}
+
+static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ ret = clk_prepare_enable(drvdata->mi2s_osr_clk);
+ if (ret) {
+ dev_err(dai->dev, "%s() error in enabling mi2s osr clk: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(drvdata->mi2s_bit_clk);
+ if (ret) {
+ dev_err(dai->dev, "%s() error in enabling mi2s bit clk: %d\n",
+ __func__, ret);
+ clk_disable_unprepare(drvdata->mi2s_osr_clk);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+
+ clk_disable_unprepare(drvdata->mi2s_bit_clk);
+ clk_disable_unprepare(drvdata->mi2s_osr_clk);
+}
+
+static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ snd_pcm_format_t format = params_format(params);
+ unsigned int channels = params_channels(params);
+ unsigned int rate = params_rate(params);
+ unsigned int regval;
+ int bitwidth, ret;
+
+ bitwidth = snd_pcm_format_width(format);
+ if (bitwidth < 0) {
+ dev_err(dai->dev, "%s() invalid bit width given: %d\n",
+ __func__, bitwidth);
+ return bitwidth;
+ }
+
+ regval = LPAIF_I2SCTL_LOOPBACK_DISABLE |
+ LPAIF_I2SCTL_WSSRC_INTERNAL;
+
+ switch (bitwidth) {
+ case 16:
+ regval |= LPAIF_I2SCTL_BITWIDTH_16;
+ break;
+ case 24:
+ regval |= LPAIF_I2SCTL_BITWIDTH_24;
+ break;
+ case 32:
+ regval |= LPAIF_I2SCTL_BITWIDTH_32;
+ break;
+ default:
+ dev_err(dai->dev, "%s() invalid bitwidth given: %d\n",
+ __func__, bitwidth);
+ return -EINVAL;
+ }
+
+ switch (channels) {
+ case 1:
+ regval |= LPAIF_I2SCTL_SPKMODE_SD0;
+ regval |= LPAIF_I2SCTL_SPKMONO_MONO;
+ break;
+ case 2:
+ regval |= LPAIF_I2SCTL_SPKMODE_SD0;
+ regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
+ break;
+ case 4:
+ regval |= LPAIF_I2SCTL_SPKMODE_QUAD01;
+ regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
+ break;
+ case 6:
+ regval |= LPAIF_I2SCTL_SPKMODE_6CH;
+ regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
+ break;
+ case 8:
+ regval |= LPAIF_I2SCTL_SPKMODE_8CH;
+ regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
+ break;
+ default:
+ dev_err(dai->dev, "%s() invalid channels given: %u\n",
+ __func__, channels);
+ return -EINVAL;
+ }
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S), regval);
+ if (ret) {
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = clk_set_rate(drvdata->mi2s_bit_clk, rate * bitwidth * 2);
+ if (ret) {
+ dev_err(dai->dev, "%s() error setting mi2s bitclk to %u: %d\n",
+ __func__, rate * bitwidth * 2, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lpass_cpu_daiops_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S), 0);
+ if (ret)
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S),
+ LPAIF_I2SCTL_SPKEN_MASK, LPAIF_I2SCTL_SPKEN_ENABLE);
+ if (ret)
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S),
+ LPAIF_I2SCTL_SPKEN_MASK,
+ LPAIF_I2SCTL_SPKEN_ENABLE);
+ if (ret)
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S),
+ LPAIF_I2SCTL_SPKEN_MASK,
+ LPAIF_I2SCTL_SPKEN_DISABLE);
+ if (ret)
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+ break;
+ }
+
+ return ret;
+}
+
+static struct snd_soc_dai_ops lpass_cpu_dai_ops = {
+ .set_sysclk = lpass_cpu_daiops_set_sysclk,
+ .startup = lpass_cpu_daiops_startup,
+ .shutdown = lpass_cpu_daiops_shutdown,
+ .hw_params = lpass_cpu_daiops_hw_params,
+ .hw_free = lpass_cpu_daiops_hw_free,
+ .prepare = lpass_cpu_daiops_prepare,
+ .trigger = lpass_cpu_daiops_trigger,
+};
+
+static int lpass_cpu_dai_probe(struct snd_soc_dai *dai)
+{
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ /* ensure audio hardware is disabled */
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_I2SCTL_REG(LPAIF_I2S_PORT_MI2S), 0);
+ if (ret)
+ dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static struct snd_soc_dai_driver lpass_cpu_dai_driver = {
+ .playback = {
+ .stream_name = "lpass-cpu-playback",
+ .formats = SNDRV_PCM_FMTBIT_S16 |
+ SNDRV_PCM_FMTBIT_S24 |
+ SNDRV_PCM_FMTBIT_S32,
+ .rates = SNDRV_PCM_RATE_8000 |
+ SNDRV_PCM_RATE_16000 |
+ SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_96000,
+ .rate_min = 8000,
+ .rate_max = 96000,
+ .channels_min = 1,
+ .channels_max = 8,
+ },
+ .probe = &lpass_cpu_dai_probe,
+ .ops = &lpass_cpu_dai_ops,
+};
+
+static const struct snd_soc_component_driver lpass_cpu_comp_driver = {
+ .name = "lpass-cpu",
+};
+
+static bool lpass_cpu_regmap_writeable(struct device *dev, unsigned int reg)
+{
+ int i;
+
+ for (i = 0; i < LPAIF_I2S_PORT_NUM; ++i)
+ if (reg == LPAIF_I2SCTL_REG(i))
+ return true;
+
+ for (i = 0; i < LPAIF_IRQ_PORT_NUM; ++i) {
+ if (reg == LPAIF_IRQEN_REG(i))
+ return true;
+ if (reg == LPAIF_IRQCLEAR_REG(i))
+ return true;
+ }
+
+ for (i = 0; i < LPAIF_RDMA_CHAN_NUM; ++i) {
+ if (reg == LPAIF_RDMACTL_REG(i))
+ return true;
+ if (reg == LPAIF_RDMABASE_REG(i))
+ return true;
+ if (reg == LPAIF_RDMABUFF_REG(i))
+ return true;
+ if (reg == LPAIF_RDMAPER_REG(i))
+ return true;
+ }
+
+ return false;
+}
+
+static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg)
+{
+ int i;
+
+ for (i = 0; i < LPAIF_I2S_PORT_NUM; ++i)
+ if (reg == LPAIF_I2SCTL_REG(i))
+ return true;
+
+ for (i = 0; i < LPAIF_IRQ_PORT_NUM; ++i) {
+ if (reg == LPAIF_IRQEN_REG(i))
+ return true;
+ if (reg == LPAIF_IRQSTAT_REG(i))
+ return true;
+ }
+
+ for (i = 0; i < LPAIF_RDMA_CHAN_NUM; ++i) {
+ if (reg == LPAIF_RDMACTL_REG(i))
+ return true;
+ if (reg == LPAIF_RDMABASE_REG(i))
+ return true;
+ if (reg == LPAIF_RDMABUFF_REG(i))
+ return true;
+ if (reg == LPAIF_RDMACURR_REG(i))
+ return true;
+ if (reg == LPAIF_RDMAPER_REG(i))
+ return true;
+ }
+
+ return false;
+}
+
+static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg)
+{
+ int i;
+
+ for (i = 0; i < LPAIF_IRQ_PORT_NUM; ++i)
+ if (reg == LPAIF_IRQSTAT_REG(i))
+ return true;
+
+ for (i = 0; i < LPAIF_RDMA_CHAN_NUM; ++i)
+ if (reg == LPAIF_RDMACURR_REG(i))
+ return true;
+
+ return false;
+}
+
+static const struct regmap_config lpass_cpu_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = LPAIF_RDMAPER_REG(LPAIF_RDMA_CHAN_MAX),
+ .writeable_reg = lpass_cpu_regmap_writeable,
+ .readable_reg = lpass_cpu_regmap_readable,
+ .volatile_reg = lpass_cpu_regmap_volatile,
+ .cache_type = REGCACHE_FLAT,
+};
+
+static int lpass_cpu_platform_probe(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata;
+ struct device_node *dsp_of_node;
+ struct resource *res;
+ int ret;
+
+ dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
+ if (dsp_of_node) {
+ dev_err(&pdev->dev, "%s() DSP exists and holds audio resources\n",
+ __func__);
+ return -EBUSY;
+ }
+
+ drvdata = devm_kzalloc(&pdev->dev, sizeof(struct lpass_data),
+ GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, drvdata);
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-lpaif");
+ if (!res) {
+ dev_err(&pdev->dev, "%s() error getting resource\n", __func__);
+ return -ENODEV;
+ }
+
+ drvdata->lpaif = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR((void const __force *)drvdata->lpaif)) {
+ dev_err(&pdev->dev, "%s() error mapping reg resource: %ld\n",
+ __func__,
+ PTR_ERR((void const __force *)drvdata->lpaif));
+ return PTR_ERR((void const __force *)drvdata->lpaif);
+ }
+
+ drvdata->lpaif_map = devm_regmap_init_mmio(&pdev->dev, drvdata->lpaif,
+ &lpass_cpu_regmap_config);
+ if (IS_ERR(drvdata->lpaif_map)) {
+ dev_err(&pdev->dev, "%s() error initializing regmap: %ld\n",
+ __func__, PTR_ERR(drvdata->lpaif_map));
+ return PTR_ERR(drvdata->lpaif_map);
+ }
+
+ drvdata->mi2s_osr_clk = devm_clk_get(&pdev->dev, "mi2s-osr-clk");
+ if (IS_ERR(drvdata->mi2s_osr_clk)) {
+ dev_err(&pdev->dev, "%s() error getting mi2s-osr-clk: %ld\n",
+ __func__, PTR_ERR(drvdata->mi2s_osr_clk));
+ return PTR_ERR(drvdata->mi2s_osr_clk);
+ }
+
+ drvdata->mi2s_bit_clk = devm_clk_get(&pdev->dev, "mi2s-bit-clk");
+ if (IS_ERR(drvdata->mi2s_bit_clk)) {
+ dev_err(&pdev->dev, "%s() error getting mi2s-bit-clk: %ld\n",
+ __func__, PTR_ERR(drvdata->mi2s_bit_clk));
+ return PTR_ERR(drvdata->mi2s_bit_clk);
+ }
+
+ drvdata->ahbix_clk = devm_clk_get(&pdev->dev, "ahbix-clk");
+ if (IS_ERR(drvdata->ahbix_clk)) {
+ dev_err(&pdev->dev, "%s() error getting ahbix-clk: %ld\n",
+ __func__, PTR_ERR(drvdata->ahbix_clk));
+ return PTR_ERR(drvdata->ahbix_clk);
+ }
+
+ ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error setting rate on ahbix_clk: %d\n",
+ __func__, ret);
+ return ret;
+ }
+ dev_dbg(&pdev->dev, "%s() set ahbix_clk rate to %lu\n", __func__,
+ clk_get_rate(drvdata->ahbix_clk));
+
+ ret = clk_prepare_enable(drvdata->ahbix_clk);
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error enabling ahbix_clk: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &lpass_cpu_comp_driver, &lpass_cpu_dai_driver, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error registering cpu driver: %d\n",
+ __func__, ret);
+ goto err_clk;
+ }
+
+ ret = asoc_qcom_lpass_platform_register(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error registering platform driver: %d\n",
+ __func__, ret);
+ goto err_clk;
+ }
+
+ return 0;
+
+err_clk:
+ clk_disable_unprepare(drvdata->ahbix_clk);
+ return ret;
+}
+
+static int lpass_cpu_platform_remove(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+ clk_disable_unprepare(drvdata->ahbix_clk);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id lpass_cpu_device_id[] = {
+ { .compatible = "qcom,lpass-cpu" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, lpass_cpu_device_id);
+#endif
+
+static struct platform_driver lpass_cpu_platform_driver = {
+ .driver = {
+ .name = "lpass-cpu",
+ .of_match_table = of_match_ptr(lpass_cpu_device_id),
+ },
+ .probe = lpass_cpu_platform_probe,
+ .remove = lpass_cpu_platform_remove,
+};
+module_platform_driver(lpass_cpu_platform_driver);
+
+MODULE_DESCRIPTION("QTi LPASS CPU Driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * lpass-lpaif-ipq806x.h -- Definitions for the QTi LPAIF in the ipq806x LPASS
+ */
+
+#ifndef __LPASS_LPAIF_H__
+#define __LPASS_LPAIF_H__
+
+#define LPAIF_BANK_OFFSET 0x1000
+
+/* LPAIF I2S */
+
+#define LPAIF_I2SCTL_REG_BASE 0x0010
+#define LPAIF_I2SCTL_REG_STRIDE 0x4
+#define LPAIF_I2SCTL_REG_ADDR(addr, port) \
+ (LPAIF_I2SCTL_REG_BASE + (addr) + (LPAIF_I2SCTL_REG_STRIDE * (port)))
+
+enum lpaif_i2s_ports {
+ LPAIF_I2S_PORT_MIN = 0,
+
+ LPAIF_I2S_PORT_CODEC_SPK = 0,
+ LPAIF_I2S_PORT_CODEC_MIC = 1,
+ LPAIF_I2S_PORT_SEC_SPK = 2,
+ LPAIF_I2S_PORT_SEC_MIC = 3,
+ LPAIF_I2S_PORT_MI2S = 4,
+
+ LPAIF_I2S_PORT_MAX = 4,
+ LPAIF_I2S_PORT_NUM = 5,
+};
+
+#define LPAIF_I2SCTL_REG(port) LPAIF_I2SCTL_REG_ADDR(0x0, (port))
+
+#define LPAIF_I2SCTL_LOOPBACK_MASK 0x8000
+#define LPAIF_I2SCTL_LOOPBACK_SHIFT 15
+#define LPAIF_I2SCTL_LOOPBACK_DISABLE (0 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
+#define LPAIF_I2SCTL_LOOPBACK_ENABLE (1 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
+
+#define LPAIF_I2SCTL_SPKEN_MASK 0x4000
+#define LPAIF_I2SCTL_SPKEN_SHIFT 14
+#define LPAIF_I2SCTL_SPKEN_DISABLE (0 << LPAIF_I2SCTL_SPKEN_SHIFT)
+#define LPAIF_I2SCTL_SPKEN_ENABLE (1 << LPAIF_I2SCTL_SPKEN_SHIFT)
+
+#define LPAIF_I2SCTL_SPKMODE_MASK 0x3C00
+#define LPAIF_I2SCTL_SPKMODE_SHIFT 10
+#define LPAIF_I2SCTL_SPKMODE_NONE (0 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_SD0 (1 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_SD1 (2 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_SD2 (3 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_SD3 (4 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_QUAD01 (5 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_QUAD23 (6 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_6CH (7 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE_8CH (8 << LPAIF_I2SCTL_SPKMODE_SHIFT)
+
+#define LPAIF_I2SCTL_SPKMONO_MASK 0x0200
+#define LPAIF_I2SCTL_SPKMONO_SHIFT 9
+#define LPAIF_I2SCTL_SPKMONO_STEREO (0 << LPAIF_I2SCTL_SPKMONO_SHIFT)
+#define LPAIF_I2SCTL_SPKMONO_MONO (1 << LPAIF_I2SCTL_SPKMONO_SHIFT)
+
+#define LPAIF_I2SCTL_WSSRC_MASK 0x0004
+#define LPAIF_I2SCTL_WSSRC_SHIFT 2
+#define LPAIF_I2SCTL_WSSRC_INTERNAL (0 << LPAIF_I2SCTL_WSSRC_SHIFT)
+#define LPAIF_I2SCTL_WSSRC_EXTERNAL (1 << LPAIF_I2SCTL_WSSRC_SHIFT)
+
+#define LPAIF_I2SCTL_BITWIDTH_MASK 0x0003
+#define LPAIF_I2SCTL_BITWIDTH_SHIFT 0
+#define LPAIF_I2SCTL_BITWIDTH_16 (0 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
+#define LPAIF_I2SCTL_BITWIDTH_24 (1 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
+#define LPAIF_I2SCTL_BITWIDTH_32 (2 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
+
+/* LPAIF IRQ */
+
+#define LPAIF_IRQ_REG_BASE 0x3000
+#define LPAIF_IRQ_REG_STRIDE 0x1000
+#define LPAIF_IRQ_REG_ADDR(addr, port) \
+ (LPAIF_IRQ_REG_BASE + (addr) + (LPAIF_IRQ_REG_STRIDE * (port)))
+
+enum lpaif_irq_ports {
+ LPAIF_IRQ_PORT_MIN = 0,
+
+ LPAIF_IRQ_PORT_HOST = 0,
+ LPAIF_IRQ_PORT_ADSP = 1,
+
+ LPAIF_IRQ_PORT_MAX = 2,
+ LPAIF_IRQ_PORT_NUM = 3,
+};
+
+#define LPAIF_IRQEN_REG(port) LPAIF_IRQ_REG_ADDR(0x0, (port))
+#define LPAIF_IRQSTAT_REG(port) LPAIF_IRQ_REG_ADDR(0x4, (port))
+#define LPAIF_IRQCLEAR_REG(port) LPAIF_IRQ_REG_ADDR(0xC, (port))
+
+#define LPAIF_IRQ_BITSTRIDE 3
+#define LPAIF_IRQ_PER(chan) (1 << (LPAIF_IRQ_BITSTRIDE * (chan)))
+#define LPAIF_IRQ_XRUN(chan) (2 << (LPAIF_IRQ_BITSTRIDE * (chan)))
+#define LPAIF_IRQ_ERR(chan) (4 << (LPAIF_IRQ_BITSTRIDE * (chan)))
+#define LPAIF_IRQ_ALL(chan) (7 << (LPAIF_IRQ_BITSTRIDE * (chan)))
+
+/* LPAIF DMA */
+
+#define LPAIF_RDMA_REG_BASE 0x6000
+#define LPAIF_RDMA_REG_STRIDE 0x1000
+#define LPAIF_RDMA_REG_ADDR(addr, chan) \
+ (LPAIF_RDMA_REG_BASE + (addr) + (LPAIF_RDMA_REG_STRIDE * (chan)))
+
+enum lpaif_dma_channels {
+ LPAIF_RDMA_CHAN_MIN = 0,
+
+ LPAIF_RDMA_CHAN_MI2S = 0,
+ LPAIF_RDMA_CHAN_PCM0 = 1,
+ LPAIF_RDMA_CHAN_PCM1 = 2,
+
+ LPAIF_RDMA_CHAN_MAX = 4,
+ LPAIF_RDMA_CHAN_NUM = 5,
+};
+
+#define LPAIF_RDMACTL_REG(chan) LPAIF_RDMA_REG_ADDR(0x00, (chan))
+#define LPAIF_RDMABASE_REG(chan) LPAIF_RDMA_REG_ADDR(0x04, (chan))
+#define LPAIF_RDMABUFF_REG(chan) LPAIF_RDMA_REG_ADDR(0x08, (chan))
+#define LPAIF_RDMACURR_REG(chan) LPAIF_RDMA_REG_ADDR(0x0C, (chan))
+#define LPAIF_RDMAPER_REG(chan) LPAIF_RDMA_REG_ADDR(0x10, (chan))
+
+#define LPAIF_RDMACTL_BURSTEN_MASK 0x800
+#define LPAIF_RDMACTL_BURSTEN_SHIFT 11
+#define LPAIF_RDMACTL_BURSTEN_SINGLE (0 << LPAIF_RDMACTL_BURSTEN_SHIFT)
+#define LPAIF_RDMACTL_BURSTEN_INCR4 (1 << LPAIF_RDMACTL_BURSTEN_SHIFT)
+
+#define LPAIF_RDMACTL_WPSCNT_MASK 0x700
+#define LPAIF_RDMACTL_WPSCNT_SHIFT 8
+#define LPAIF_RDMACTL_WPSCNT_ONE (0 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+#define LPAIF_RDMACTL_WPSCNT_TWO (1 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+#define LPAIF_RDMACTL_WPSCNT_THREE (2 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+#define LPAIF_RDMACTL_WPSCNT_FOUR (3 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+#define LPAIF_RDMACTL_WPSCNT_SIX (5 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+#define LPAIF_RDMACTL_WPSCNT_EIGHT (7 << LPAIF_RDMACTL_WPSCNT_SHIFT)
+
+#define LPAIF_RDMACTL_AUDINTF_MASK 0x0F0
+#define LPAIF_RDMACTL_AUDINTF_SHIFT 4
+#define LPAIF_RDMACTL_AUDINTF_NONE (0 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_CODEC (1 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_PCM (2 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_SEC_I2S (3 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_MI2S (4 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_HDMI (5 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+#define LPAIF_RDMACTL_AUDINTF_SEC_PCM (7 << LPAIF_RDMACTL_AUDINTF_SHIFT)
+
+#define LPAIF_RDMACTL_FIFOWM_MASK 0x00E
+#define LPAIF_RDMACTL_FIFOWM_SHIFT 1
+#define LPAIF_RDMACTL_FIFOWM_1 (0 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_2 (1 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_3 (2 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_4 (3 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_5 (4 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_6 (5 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_7 (6 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+#define LPAIF_RDMACTL_FIFOWM_8 (7 << LPAIF_RDMACTL_FIFOWM_SHIFT)
+
+#define LPAIF_RDMACTL_ENABLE_MASK 0x1
+#define LPAIF_RDMACTL_ENABLE_SHIFT 0
+#define LPAIF_RDMACTL_ENABLE_OFF (0 << LPAIF_RDMACTL_ENABLE_SHIFT)
+#define LPAIF_RDMACTL_ENABLE_ON (1 << LPAIF_RDMACTL_ENABLE_SHIFT)
+
+#endif /* __LPASS_LPAIF_H__ */
--- /dev/null
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * lpass-platform.c -- ALSA SoC platform driver for QTi LPASS
+ */
+
+#include <linux/compiler.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <sound/memalloc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include "lpass-lpaif-ipq806x.h"
+#include "lpass.h"
+
+#define LPASS_PLATFORM_BUFFER_SIZE (16 * 1024)
+#define LPASS_PLATFORM_PERIODS 2
+
+static struct snd_pcm_hardware lpass_platform_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16 |
+ SNDRV_PCM_FMTBIT_S24 |
+ SNDRV_PCM_FMTBIT_S32,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .rate_min = 8000,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+ .buffer_bytes_max = LPASS_PLATFORM_BUFFER_SIZE,
+ .period_bytes_max = LPASS_PLATFORM_BUFFER_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .period_bytes_min = LPASS_PLATFORM_BUFFER_SIZE /
+ LPASS_PLATFORM_PERIODS,
+ .periods_min = LPASS_PLATFORM_PERIODS,
+ .periods_max = LPASS_PLATFORM_PERIODS,
+ .fifo_size = 0,
+};
+
+static int lpass_platform_pcmops_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ int ret;
+
+ snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
+
+ runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max;
+
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0) {
+ dev_err(soc_runtime->dev, "%s() setting constraints failed: %d\n",
+ __func__, ret);
+ return -EINVAL;
+ }
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ snd_pcm_format_t format = params_format(params);
+ unsigned int channels = params_channels(params);
+ unsigned int regval;
+ int bitwidth;
+ int ret;
+
+ bitwidth = snd_pcm_format_width(format);
+ if (bitwidth < 0) {
+ dev_err(soc_runtime->dev, "%s() invalid bit width given: %d\n",
+ __func__, bitwidth);
+ return bitwidth;
+ }
+
+ regval = LPAIF_RDMACTL_BURSTEN_INCR4 |
+ LPAIF_RDMACTL_AUDINTF_MI2S |
+ LPAIF_RDMACTL_FIFOWM_8;
+
+ switch (bitwidth) {
+ case 16:
+ switch (channels) {
+ case 1:
+ case 2:
+ regval |= LPAIF_RDMACTL_WPSCNT_ONE;
+ break;
+ case 4:
+ regval |= LPAIF_RDMACTL_WPSCNT_TWO;
+ break;
+ case 6:
+ regval |= LPAIF_RDMACTL_WPSCNT_THREE;
+ break;
+ case 8:
+ regval |= LPAIF_RDMACTL_WPSCNT_FOUR;
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s() invalid PCM config given: bw=%d, ch=%u\n",
+ __func__, bitwidth, channels);
+ return -EINVAL;
+ }
+ break;
+ case 24:
+ case 32:
+ switch (channels) {
+ case 1:
+ regval |= LPAIF_RDMACTL_WPSCNT_ONE;
+ break;
+ case 2:
+ regval |= LPAIF_RDMACTL_WPSCNT_TWO;
+ break;
+ case 4:
+ regval |= LPAIF_RDMACTL_WPSCNT_FOUR;
+ break;
+ case 6:
+ regval |= LPAIF_RDMACTL_WPSCNT_SIX;
+ break;
+ case 8:
+ regval |= LPAIF_RDMACTL_WPSCNT_EIGHT;
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s() invalid PCM config given: bw=%d, ch=%u\n",
+ __func__, bitwidth, channels);
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(soc_runtime->dev, "%s() invalid PCM config given: bw=%d, ch=%u\n",
+ __func__, bitwidth, channels);
+ return -EINVAL;
+ }
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S), regval);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ int ret;
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S), 0);
+ if (ret)
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+
+ return ret;
+}
+
+static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ int ret;
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMABASE_REG(LPAIF_RDMA_CHAN_MI2S),
+ runtime->dma_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmabase reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMABUFF_REG(LPAIF_RDMA_CHAN_MI2S),
+ (snd_pcm_lib_buffer_bytes(substream) >> 2) - 1);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmabuff reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMAPER_REG(LPAIF_RDMA_CHAN_MI2S),
+ (snd_pcm_lib_period_bytes(substream) >> 2) - 1);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmaper reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S),
+ LPAIF_RDMACTL_ENABLE_MASK, LPAIF_RDMACTL_ENABLE_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ int ret;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ /* clear status before enabling interrupts */
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQCLEAR_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_ALL(LPAIF_RDMA_CHAN_MI2S));
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqclear reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_IRQEN_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_ALL(LPAIF_RDMA_CHAN_MI2S),
+ LPAIF_IRQ_ALL(LPAIF_RDMA_CHAN_MI2S));
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqen reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S),
+ LPAIF_RDMACTL_ENABLE_MASK,
+ LPAIF_RDMACTL_ENABLE_ON);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S),
+ LPAIF_RDMACTL_ENABLE_MASK,
+ LPAIF_RDMACTL_ENABLE_OFF);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(drvdata->lpaif_map,
+ LPAIF_IRQEN_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_ALL(LPAIF_RDMA_CHAN_MI2S), 0);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqen reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ unsigned int base_addr, curr_addr;
+ int ret;
+
+ ret = regmap_read(drvdata->lpaif_map,
+ LPAIF_RDMABASE_REG(LPAIF_RDMA_CHAN_MI2S), &base_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error reading from rdmabase reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_read(drvdata->lpaif_map,
+ LPAIF_RDMACURR_REG(LPAIF_RDMA_CHAN_MI2S), &curr_addr);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error reading from rdmacurr reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return bytes_to_frames(substream->runtime, curr_addr - base_addr);
+}
+
+static int lpass_platform_pcmops_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ return dma_mmap_coherent(substream->pcm->card->dev, vma,
+ runtime->dma_area, runtime->dma_addr,
+ runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops lpass_platform_pcm_ops = {
+ .open = lpass_platform_pcmops_open,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = lpass_platform_pcmops_hw_params,
+ .hw_free = lpass_platform_pcmops_hw_free,
+ .prepare = lpass_platform_pcmops_prepare,
+ .trigger = lpass_platform_pcmops_trigger,
+ .pointer = lpass_platform_pcmops_pointer,
+ .mmap = lpass_platform_pcmops_mmap,
+};
+
+static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data)
+{
+ struct snd_pcm_substream *substream = data;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ unsigned int interrupts;
+ irqreturn_t ret = IRQ_NONE;
+ int rv;
+
+ rv = regmap_read(drvdata->lpaif_map,
+ LPAIF_IRQSTAT_REG(LPAIF_IRQ_PORT_HOST), &interrupts);
+ if (rv) {
+ dev_err(soc_runtime->dev, "%s() error reading from irqstat reg: %d\n",
+ __func__, rv);
+ return IRQ_NONE;
+ }
+ interrupts &= LPAIF_IRQ_ALL(LPAIF_RDMA_CHAN_MI2S);
+
+ if (interrupts & LPAIF_IRQ_PER(LPAIF_RDMA_CHAN_MI2S)) {
+ rv = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQCLEAR_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_PER(LPAIF_RDMA_CHAN_MI2S));
+ if (rv) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqclear reg: %d\n",
+ __func__, rv);
+ return IRQ_NONE;
+ }
+ snd_pcm_period_elapsed(substream);
+ ret = IRQ_HANDLED;
+ }
+
+ if (interrupts & LPAIF_IRQ_XRUN(LPAIF_RDMA_CHAN_MI2S)) {
+ rv = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQCLEAR_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_XRUN(LPAIF_RDMA_CHAN_MI2S));
+ if (rv) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqclear reg: %d\n",
+ __func__, rv);
+ return IRQ_NONE;
+ }
+ dev_warn(soc_runtime->dev, "%s() xrun warning\n", __func__);
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+ ret = IRQ_HANDLED;
+ }
+
+ if (interrupts & LPAIF_IRQ_ERR(LPAIF_RDMA_CHAN_MI2S)) {
+ rv = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQCLEAR_REG(LPAIF_IRQ_PORT_HOST),
+ LPAIF_IRQ_ERR(LPAIF_RDMA_CHAN_MI2S));
+ if (rv) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqclear reg: %d\n",
+ __func__, rv);
+ return IRQ_NONE;
+ }
+ dev_err(soc_runtime->dev, "%s() bus access error\n", __func__);
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
+ ret = IRQ_HANDLED;
+ }
+
+ return ret;
+}
+
+static int lpass_platform_alloc_buffer(struct snd_pcm_substream *substream,
+ struct snd_soc_pcm_runtime *soc_runtime)
+{
+ struct snd_dma_buffer *buf = &substream->dma_buffer;
+ size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
+
+ buf->dev.type = SNDRV_DMA_TYPE_DEV;
+ buf->dev.dev = soc_runtime->dev;
+ buf->private_data = NULL;
+ buf->area = dma_alloc_coherent(soc_runtime->dev, size, &buf->addr,
+ GFP_KERNEL);
+ if (!buf->area) {
+ dev_err(soc_runtime->dev, "%s: Could not allocate DMA buffer\n",
+ __func__);
+ return -ENOMEM;
+ }
+ buf->bytes = size;
+
+ return 0;
+}
+
+static void lpass_platform_free_buffer(struct snd_pcm_substream *substream,
+ struct snd_soc_pcm_runtime *soc_runtime)
+{
+ struct snd_dma_buffer *buf = &substream->dma_buffer;
+
+ if (buf->area) {
+ dma_free_coherent(soc_runtime->dev, buf->bytes, buf->area,
+ buf->addr);
+ }
+ buf->area = NULL;
+}
+
+static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
+{
+ struct snd_pcm *pcm = soc_runtime->pcm;
+ struct snd_pcm_substream *substream =
+ pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ struct lpass_data *drvdata =
+ snd_soc_platform_get_drvdata(soc_runtime->platform);
+ int ret;
+
+ soc_runtime->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+ soc_runtime->dev->dma_mask = &soc_runtime->dev->coherent_dma_mask;
+
+ ret = lpass_platform_alloc_buffer(substream, soc_runtime);
+ if (ret)
+ return ret;
+
+ ret = devm_request_irq(soc_runtime->dev, drvdata->lpaif_irq,
+ lpass_platform_lpaif_irq, IRQF_TRIGGER_RISING,
+ "lpass-irq-lpaif", substream);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() irq request failed: %d\n",
+ __func__, ret);
+ goto err_buf;
+ }
+
+ /* ensure audio hardware is disabled */
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_IRQEN_REG(LPAIF_IRQ_PORT_HOST), 0);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to irqen reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+ ret = regmap_write(drvdata->lpaif_map,
+ LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S), 0);
+ if (ret) {
+ dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+
+err_buf:
+ lpass_platform_free_buffer(substream, soc_runtime);
+ return ret;
+}
+
+static void lpass_platform_pcm_free(struct snd_pcm *pcm)
+{
+ struct snd_pcm_substream *substream =
+ pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+
+ lpass_platform_free_buffer(substream, soc_runtime);
+}
+
+static struct snd_soc_platform_driver lpass_platform_driver = {
+ .pcm_new = lpass_platform_pcm_new,
+ .pcm_free = lpass_platform_pcm_free,
+ .ops = &lpass_platform_pcm_ops,
+};
+
+int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
+{
+ struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+ drvdata->lpaif_irq = platform_get_irq_byname(pdev, "lpass-irq-lpaif");
+ if (drvdata->lpaif_irq < 0) {
+ dev_err(&pdev->dev, "%s() error getting irq handle: %d\n",
+ __func__, drvdata->lpaif_irq);
+ return -ENODEV;
+ }
+
+ return devm_snd_soc_register_platform(&pdev->dev,
+ &lpass_platform_driver);
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_platform_register);
+
+MODULE_DESCRIPTION("QTi LPASS Platform Driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * lpass.h - Definitions for the QTi LPASS
+ */
+
+#ifndef __LPASS_H__
+#define __LPASS_H__
+
+#include <linux/clk.h>
+#include <linux/compiler.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define LPASS_AHBIX_CLOCK_FREQUENCY 131072000
+
+/* Both the CPU DAI and platform drivers will access this data */
+struct lpass_data {
+
+ /* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */
+ struct clk *ahbix_clk;
+
+ /* MI2S system clock */
+ struct clk *mi2s_osr_clk;
+
+ /* MI2S bit clock (derived from system clock by a divider */
+ struct clk *mi2s_bit_clk;
+
+ /* low-power audio interface (LPAIF) registers */
+ void __iomem *lpaif;
+
+ /* regmap backed by the low-power audio interface (LPAIF) registers */
+ struct regmap *lpaif_map;
+
+ /* interrupts from the low-power audio interface (LPAIF) */
+ int lpaif_irq;
+};
+
+/* register the platform driver from the CPU DAI driver */
+int asoc_qcom_lpass_platform_register(struct platform_device *);
+
+#endif /* __LPASS_H__ */
--- /dev/null
+/*
+ * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * storm.c -- ALSA SoC machine driver for QTi ipq806x-based Storm board
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define STORM_SYSCLK_MULT 4
+
+static int storm_ops_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
+ struct snd_soc_card *card = soc_runtime->card;
+ snd_pcm_format_t format = params_format(params);
+ unsigned int rate = params_rate(params);
+ unsigned int sysclk_freq;
+ int bitwidth, ret;
+
+ bitwidth = snd_pcm_format_width(format);
+ if (bitwidth < 0) {
+ dev_err(card->dev, "%s() invalid bit width given: %d\n",
+ __func__, bitwidth);
+ return bitwidth;
+ }
+
+ /*
+ * as the CPU DAI is the I2S bus master and no system clock is needed by
+ * the MAX98357a DAC, simply set the system clock to be a constant
+ * multiple of the bit clock for the clock divider
+ */
+ sysclk_freq = rate * bitwidth * 2 * STORM_SYSCLK_MULT;
+
+ ret = snd_soc_dai_set_sysclk(soc_runtime->cpu_dai, 0, sysclk_freq, 0);
+ if (ret) {
+ dev_err(card->dev, "%s() error setting sysclk to %u: %d\n",
+ __func__, sysclk_freq, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops storm_soc_ops = {
+ .hw_params = storm_ops_hw_params,
+};
+
+static struct snd_soc_dai_link storm_dai_link = {
+ .name = "Primary",
+ .stream_name = "Primary",
+ .codec_dai_name = "HiFi",
+ .ops = &storm_soc_ops,
+};
+
+static struct snd_soc_card storm_soc_card = {
+ .name = "ipq806x-storm",
+ .dev = NULL,
+};
+
+static int storm_parse_of(struct snd_soc_card *card)
+{
+ struct snd_soc_dai_link *dai_link = card->dai_link;
+ struct device_node *np = card->dev->of_node;
+
+ dai_link->cpu_of_node = of_parse_phandle(np, "cpu", 0);
+ if (!dai_link->cpu_of_node) {
+ dev_err(card->dev, "%s() error getting cpu phandle\n",
+ __func__);
+ return -EINVAL;
+ }
+ dai_link->platform_of_node = dai_link->cpu_of_node;
+
+ dai_link->codec_of_node = of_parse_phandle(np, "codec", 0);
+ if (!dai_link->codec_of_node) {
+ dev_err(card->dev, "%s() error getting codec phandle\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int storm_platform_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &storm_soc_card;
+ int ret;
+
+ if (card->dev) {
+ dev_err(&pdev->dev, "%s() error, existing soundcard\n",
+ __func__);
+ return -ENODEV;
+ }
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+
+ ret = snd_soc_of_parse_card_name(card, "qcom,model");
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error parsing card name: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ card->dai_link = &storm_dai_link;
+ card->num_links = 1;
+
+ ret = storm_parse_of(card);
+ if (ret) {
+ dev_err(&pdev->dev, "%s() error resolving dai links: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret == -EPROBE_DEFER) {
+ card->dev = NULL;
+ return ret;
+ } else if (ret) {
+ dev_err(&pdev->dev, "%s() error registering soundcard: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id storm_device_id[] = {
+ { .compatible = "google,storm-audio" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, storm_device_id);
+#endif
+
+static struct platform_driver storm_platform_driver = {
+ .driver = {
+ .name = "storm-audio",
+ .of_match_table =
+ of_match_ptr(storm_device_id),
+ },
+ .probe = storm_platform_probe,
+};
+module_platform_driver(storm_platform_driver);
+
+MODULE_DESCRIPTION("QTi IPQ806x-based Storm Machine Driver");
+MODULE_LICENSE("GPL v2");
config SND_SOC_RCAR
tristate "R-Car series SRU/SCU/SSIU/SSI support"
+ depends on DMA_OF
select SND_SIMPLE_CARD
select REGMAP_MMIO
help
This option enables R-Car SUR/SCU/SSIU/SSI sound support
+config SND_SOC_RSRC_CARD
+ tristate "Renesas Sampling Rate Convert Sound Card"
+ help
+ This option enables simple sound if you need sampling rate convert
+
##
## Boards
##
-snd-soc-rcar-objs := core.o gen.o src.o adg.o ssi.o dvc.o
-obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
\ No newline at end of file
+snd-soc-rcar-objs := core.o gen.o dma.o src.o adg.o ssi.o dvc.o
+obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
+
+snd-soc-rsrc-card-objs := rsrc-card.o
+obj-$(CONFIG_SND_SOC_RSRC_CARD) += snd-soc-rsrc-card.o
rsnd_mod_bset(mod, DIV_EN, en, en);
+ dev_dbg(dev, "convert rate %d <-> %d\n", src_rate, dst_rate);
+
return 0;
}
priv->adg = adg;
- dev_dbg(dev, "adg probed\n");
-
return 0;
}
*
*/
#include <linux/pm_runtime.h>
-#include <linux/shdma-base.h>
#include "rsnd.h"
#define RSND_RATES SNDRV_PCM_RATE_8000_96000
#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
-static struct rsnd_of_data rsnd_of_data_gen1 = {
+static const struct rsnd_of_data rsnd_of_data_gen1 = {
.flags = RSND_GEN1,
};
-static struct rsnd_of_data rsnd_of_data_gen2 = {
+static const struct rsnd_of_data rsnd_of_data_gen2 = {
.flags = RSND_GEN2,
};
-static struct of_device_id rsnd_of_match[] = {
+static const struct of_device_id rsnd_of_match[] = {
{ .compatible = "renesas,rcar_sound-gen1", .data = &rsnd_of_data_gen1 },
{ .compatible = "renesas,rcar_sound-gen2", .data = &rsnd_of_data_gen2 },
{},
return mod->ops->name;
}
-char *rsnd_mod_dma_name(struct rsnd_mod *mod)
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod)
{
- if (!mod || !mod->ops)
- return "unknown";
-
- if (!mod->ops->dma_name)
- return mod->ops->name;
+ if (!mod || !mod->ops || !mod->ops->dma_req)
+ return NULL;
- return mod->ops->dma_name(mod);
+ return mod->ops->dma_req(mod);
}
int rsnd_mod_init(struct rsnd_mod *mod,
clk_unprepare(mod->clk);
}
-/*
- * rsnd_dma functions
- */
-void rsnd_dma_stop(struct rsnd_dma *dma)
-{
- dmaengine_terminate_all(dma->chan);
-}
-
-static void rsnd_dma_complete(void *data)
-{
- struct rsnd_dma *dma = (struct rsnd_dma *)data;
- struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
- struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
-
- /*
- * Renesas sound Gen1 needs 1 DMAC,
- * Gen2 needs 2 DMAC.
- * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
- * But, Audio-DMAC-peri-peri doesn't have interrupt,
- * and this driver is assuming that here.
- *
- * If Audio-DMAC-peri-peri has interrpt,
- * rsnd_dai_pointer_update() will be called twice,
- * ant it will breaks io->byte_pos
- */
-
- rsnd_dai_pointer_update(io, io->byte_per_period);
-}
-
-void rsnd_dma_start(struct rsnd_dma *dma)
-{
- struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
- struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
- struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
- struct snd_pcm_substream *substream = io->substream;
- struct device *dev = rsnd_priv_to_dev(priv);
- struct dma_async_tx_descriptor *desc;
-
- desc = dmaengine_prep_dma_cyclic(dma->chan,
- (dma->addr) ? dma->addr :
- substream->runtime->dma_addr,
- snd_pcm_lib_buffer_bytes(substream),
- snd_pcm_lib_period_bytes(substream),
- dma->dir,
- DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
-
- if (!desc) {
- dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
- return;
- }
-
- desc->callback = rsnd_dma_complete;
- desc->callback_param = dma;
-
- if (dmaengine_submit(desc) < 0) {
- dev_err(dev, "dmaengine_submit() fail\n");
- return;
- }
-
- dma_async_issue_pending(dma->chan);
-}
-
-int rsnd_dma_available(struct rsnd_dma *dma)
-{
- return !!dma->chan;
-}
-
-#define DMA_NAME_SIZE 16
-#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */
-static int _rsnd_dma_of_name(char *dma_name, struct rsnd_mod *mod)
-{
- if (mod)
- return snprintf(dma_name, DMA_NAME_SIZE / 2, "%s%d",
- rsnd_mod_dma_name(mod), rsnd_mod_id(mod));
- else
- return snprintf(dma_name, DMA_NAME_SIZE / 2, "mem");
-
-}
-
-static void rsnd_dma_of_name(struct rsnd_mod *mod_from,
- struct rsnd_mod *mod_to,
- char *dma_name)
-{
- int index = 0;
-
- index = _rsnd_dma_of_name(dma_name + index, mod_from);
- *(dma_name + index++) = '_';
- index = _rsnd_dma_of_name(dma_name + index, mod_to);
-}
-
-static void rsnd_dma_of_path(struct rsnd_dma *dma,
- int is_play,
- struct rsnd_mod **mod_from,
- struct rsnd_mod **mod_to)
-{
- struct rsnd_mod *this = rsnd_dma_to_mod(dma);
- struct rsnd_dai_stream *io = rsnd_mod_to_io(this);
- struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
- struct rsnd_mod *src = rsnd_io_to_mod_src(io);
- struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
- struct rsnd_mod *mod[MOD_MAX];
- int i, index;
-
-
- for (i = 0; i < MOD_MAX; i++)
- mod[i] = NULL;
-
- /*
- * in play case...
- *
- * src -> dst
- *
- * mem -> SSI
- * mem -> SRC -> SSI
- * mem -> SRC -> DVC -> SSI
- */
- mod[0] = NULL; /* for "mem" */
- index = 1;
- for (i = 1; i < MOD_MAX; i++) {
- if (!src) {
- mod[i] = ssi;
- } else if (!dvc) {
- mod[i] = src;
- src = NULL;
- } else {
- if ((!is_play) && (this == src))
- this = dvc;
-
- mod[i] = (is_play) ? src : dvc;
- i++;
- mod[i] = (is_play) ? dvc : src;
- src = NULL;
- dvc = NULL;
- }
-
- if (mod[i] == this)
- index = i;
-
- if (mod[i] == ssi)
- break;
- }
-
- if (is_play) {
- *mod_from = mod[index - 1];
- *mod_to = mod[index];
- } else {
- *mod_from = mod[index];
- *mod_to = mod[index - 1];
- }
-}
-
-int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
- int is_play, int id)
-{
- struct device *dev = rsnd_priv_to_dev(priv);
- struct dma_slave_config cfg;
- struct rsnd_mod *mod_from;
- struct rsnd_mod *mod_to;
- char dma_name[DMA_NAME_SIZE];
- dma_cap_mask_t mask;
- int ret;
-
- if (dma->chan) {
- dev_err(dev, "it already has dma channel\n");
- return -EIO;
- }
-
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
-
- rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to);
- rsnd_dma_of_name(mod_from, mod_to, dma_name);
-
- cfg.slave_id = id;
- cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
- cfg.src_addr = rsnd_gen_dma_addr(priv, mod_from, is_play, 1);
- cfg.dst_addr = rsnd_gen_dma_addr(priv, mod_to, is_play, 0);
- cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
- cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-
- dev_dbg(dev, "dma : %s %pad -> %pad\n",
- dma_name, &cfg.src_addr, &cfg.dst_addr);
-
- dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
- (void *)id, dev,
- dma_name);
- if (!dma->chan) {
- dev_err(dev, "can't get dma channel\n");
- goto rsnd_dma_channel_err;
- }
-
- ret = dmaengine_slave_config(dma->chan, &cfg);
- if (ret < 0)
- goto rsnd_dma_init_err;
-
- dma->addr = is_play ? cfg.src_addr : cfg.dst_addr;
- dma->dir = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
-
- return 0;
-
-rsnd_dma_init_err:
- rsnd_dma_quit(priv, dma);
-rsnd_dma_channel_err:
-
- /*
- * DMA failed. try to PIO mode
- * see
- * rsnd_ssi_fallback()
- * rsnd_rdai_continuance_probe()
- */
- return -EAGAIN;
-}
-
-void rsnd_dma_quit(struct rsnd_priv *priv,
- struct rsnd_dma *dma)
-{
- if (dma->chan)
- dma_release_channel(dma->chan);
-
- dma->chan = NULL;
-}
-
/*
* settting function
*/
({ \
struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
struct device *dev = rsnd_priv_to_dev(priv); \
- u32 mask = 1 << __rsnd_mod_shift_##func; \
+ u32 mask = (1 << __rsnd_mod_shift_##func) & ~(1 << 31); \
u32 call = __rsnd_mod_call_##func << __rsnd_mod_shift_##func; \
int ret = 0; \
if ((mod->status & mask) == call) { \
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
- dev_err(dev, "%s%d is not empty\n",
+ dev_err(dev, "%s[%d] is not empty\n",
rsnd_mod_name(mod),
rsnd_mod_id(mod));
return -EIO;
drv[i].name = rdai[i].name;
drv[i].ops = &rsnd_soc_dai_ops;
if (pmod) {
+ snprintf(rdai[i].playback.name, RSND_DAI_NAME_SIZE,
+ "DAI%d Playback", i);
+
drv[i].playback.rates = RSND_RATES;
drv[i].playback.formats = RSND_FMTS;
drv[i].playback.channels_min = 2;
drv[i].playback.channels_max = 2;
+ drv[i].playback.stream_name = rdai[i].playback.name;
rdai[i].playback.info = &info->dai_info[i].playback;
rdai[i].playback.rdai = rdai + i;
rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
}
if (cmod) {
+ snprintf(rdai[i].capture.name, RSND_DAI_NAME_SIZE,
+ "DAI%d Capture", i);
+
drv[i].capture.rates = RSND_RATES;
drv[i].capture.formats = RSND_FMTS;
drv[i].capture.channels_min = 2;
drv[i].capture.channels_max = 2;
+ drv[i].capture.stream_name = rdai[i].capture.name;
rdai[i].capture.info = &info->dai_info[i].capture;
rdai[i].capture.rdai = rdai + i;
static int rsnd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ int ret;
+
+ ret = rsnd_dai_call(hw_params, io, substream, hw_params);
+ if (ret)
+ return ret;
+
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv) = {
rsnd_gen_probe,
+ rsnd_dma_probe,
rsnd_ssi_probe,
rsnd_src_probe,
rsnd_dvc_probe,
--- /dev/null
+/*
+ * Renesas R-Car Audio DMAC support
+ *
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ * Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.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/delay.h>
+#include <linux/of_dma.h>
+#include "rsnd.h"
+
+/*
+ * Audio DMAC peri peri register
+ */
+#define PDMASAR 0x00
+#define PDMADAR 0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE (1 << 0)
+
+struct rsnd_dma_ctrl {
+ void __iomem *base;
+ int dmapp_num;
+};
+
+#define rsnd_priv_to_dmac(p) ((struct rsnd_dma_ctrl *)(p)->dma)
+
+/*
+ * Audio DMAC
+ */
+static void rsnd_dmaen_complete(void *data)
+{
+ struct rsnd_dma *dma = (struct rsnd_dma *)data;
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+
+ /*
+ * Renesas sound Gen1 needs 1 DMAC,
+ * Gen2 needs 2 DMAC.
+ * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
+ * But, Audio-DMAC-peri-peri doesn't have interrupt,
+ * and this driver is assuming that here.
+ *
+ * If Audio-DMAC-peri-peri has interrpt,
+ * rsnd_dai_pointer_update() will be called twice,
+ * ant it will breaks io->byte_pos
+ */
+
+ rsnd_dai_pointer_update(io, io->byte_per_period);
+}
+
+static void rsnd_dmaen_stop(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ dmaengine_terminate_all(dmaen->chan);
+}
+
+static void rsnd_dmaen_start(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_substream *substream = io->substream;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_async_tx_descriptor *desc;
+ int is_play = rsnd_io_is_play(io);
+
+ desc = dmaengine_prep_dma_cyclic(dmaen->chan,
+ substream->runtime->dma_addr,
+ snd_pcm_lib_buffer_bytes(substream),
+ snd_pcm_lib_period_bytes(substream),
+ is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+
+ if (!desc) {
+ dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
+ return;
+ }
+
+ desc->callback = rsnd_dmaen_complete;
+ desc->callback_param = dma;
+
+ if (dmaengine_submit(desc) < 0) {
+ dev_err(dev, "dmaengine_submit() fail\n");
+ return;
+ }
+
+ dma_async_issue_pending(dmaen->chan);
+}
+
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name)
+{
+ struct dma_chan *chan;
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(of_node, np) {
+ if (i == rsnd_mod_id(mod))
+ break;
+ i++;
+ }
+
+ chan = of_dma_request_slave_channel(np, name);
+
+ of_node_put(np);
+ of_node_put(of_node);
+
+ return chan;
+}
+
+static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ if ((!mod_from && !mod_to) ||
+ (mod_from && mod_to))
+ return NULL;
+
+ if (mod_from)
+ return rsnd_mod_dma_req(mod_from);
+ else
+ return rsnd_mod_dma_req(mod_to);
+}
+
+static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_slave_config cfg = {};
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+ int ret;
+
+ if (dmaen->chan) {
+ dev_err(dev, "it already has dma channel\n");
+ return -EIO;
+ }
+
+ if (dev->of_node) {
+ dmaen->chan = rsnd_dmaen_request_channel(mod_from, mod_to);
+ } else {
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+
+ dmaen->chan = dma_request_channel(mask, shdma_chan_filter,
+ (void *)id);
+ }
+ if (IS_ERR_OR_NULL(dmaen->chan)) {
+ dev_err(dev, "can't get dma channel\n");
+ goto rsnd_dma_channel_err;
+ }
+
+ cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+ cfg.src_addr = dma->src_addr;
+ cfg.dst_addr = dma->dst_addr;
+ cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+
+ dev_dbg(dev, "dma : %pad -> %pad\n",
+ &cfg.src_addr, &cfg.dst_addr);
+
+ ret = dmaengine_slave_config(dmaen->chan, &cfg);
+ if (ret < 0)
+ goto rsnd_dma_init_err;
+
+ return 0;
+
+rsnd_dma_init_err:
+ rsnd_dma_quit(dma);
+rsnd_dma_channel_err:
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ return -EAGAIN;
+}
+
+static void rsnd_dmaen_quit(struct rsnd_dma *dma)
+{
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ if (dmaen->chan)
+ dma_release_channel(dmaen->chan);
+
+ dmaen->chan = NULL;
+}
+
+static struct rsnd_dma_ops rsnd_dmaen_ops = {
+ .start = rsnd_dmaen_start,
+ .stop = rsnd_dmaen_stop,
+ .init = rsnd_dmaen_init,
+ .quit = rsnd_dmaen_quit,
+};
+
+/*
+ * Audio DMAC peri peri
+ */
+static const u8 gen2_id_table_ssiu[] = {
+ 0x00, /* SSI00 */
+ 0x04, /* SSI10 */
+ 0x08, /* SSI20 */
+ 0x0c, /* SSI3 */
+ 0x0d, /* SSI4 */
+ 0x0e, /* SSI5 */
+ 0x0f, /* SSI6 */
+ 0x10, /* SSI7 */
+ 0x11, /* SSI8 */
+ 0x12, /* SSI90 */
+};
+static const u8 gen2_id_table_scu[] = {
+ 0x2d, /* SCU_SRCI0 */
+ 0x2e, /* SCU_SRCI1 */
+ 0x2f, /* SCU_SRCI2 */
+ 0x30, /* SCU_SRCI3 */
+ 0x31, /* SCU_SRCI4 */
+ 0x32, /* SCU_SRCI5 */
+ 0x33, /* SCU_SRCI6 */
+ 0x34, /* SCU_SRCI7 */
+ 0x35, /* SCU_SRCI8 */
+ 0x36, /* SCU_SRCI9 */
+};
+static const u8 gen2_id_table_cmd[] = {
+ 0x37, /* SCU_CMD0 */
+ 0x38, /* SCU_CMD1 */
+};
+
+static u32 rsnd_dmapp_get_id(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ const u8 *entry = NULL;
+ int id = rsnd_mod_id(mod);
+ int size = 0;
+
+ if (mod == ssi) {
+ entry = gen2_id_table_ssiu;
+ size = ARRAY_SIZE(gen2_id_table_ssiu);
+ } else if (mod == src) {
+ entry = gen2_id_table_scu;
+ size = ARRAY_SIZE(gen2_id_table_scu);
+ } else if (mod == dvc) {
+ entry = gen2_id_table_cmd;
+ size = ARRAY_SIZE(gen2_id_table_cmd);
+ }
+
+ if (!entry)
+ return 0xFF;
+
+ if (size <= id)
+ return 0xFF;
+
+ return entry[id];
+}
+
+static u32 rsnd_dmapp_get_chcr(struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ return (rsnd_dmapp_get_id(mod_from) << 24) +
+ (rsnd_dmapp_get_id(mod_to) << 16);
+}
+
+#define rsnd_dmapp_addr(dmac, dma, reg) \
+ (dmac->base + 0x20 + reg + \
+ (0x10 * rsnd_dma_to_dmapp(dma)->dmapp_id))
+static void rsnd_dmapp_write(struct rsnd_dma *dma, u32 data, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_dbg(dev, "w %p : %08x\n", rsnd_dmapp_addr(dmac, dma, reg), data);
+
+ iowrite32(data, rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static u32 rsnd_dmapp_read(struct rsnd_dma *dma, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+
+ return ioread32(rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static void rsnd_dmapp_stop(struct rsnd_dma *dma)
+{
+ int i;
+
+ rsnd_dmapp_write(dma, 0, PDMACHCR);
+
+ for (i = 0; i < 1024; i++) {
+ if (0 == rsnd_dmapp_read(dma, PDMACHCR))
+ return;
+ udelay(1);
+ }
+}
+
+static void rsnd_dmapp_start(struct rsnd_dma *dma)
+{
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+
+ rsnd_dmapp_write(dma, dma->src_addr, PDMASAR);
+ rsnd_dmapp_write(dma, dma->dst_addr, PDMADAR);
+ rsnd_dmapp_write(dma, dmapp->chcr, PDMACHCR);
+}
+
+static int rsnd_dmapp_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dmapp->dmapp_id = dmac->dmapp_num;
+ dmapp->chcr = rsnd_dmapp_get_chcr(mod_from, mod_to) | PDMACHCR_DE;
+
+ dmac->dmapp_num++;
+
+ rsnd_dmapp_stop(dma);
+
+ dev_dbg(dev, "id/src/dst/chcr = %d/%pad/%pad/%08x\n",
+ dmapp->dmapp_id, &dma->src_addr, &dma->dst_addr, dmapp->chcr);
+
+ return 0;
+}
+
+static struct rsnd_dma_ops rsnd_dmapp_ops = {
+ .start = rsnd_dmapp_start,
+ .stop = rsnd_dmapp_stop,
+ .init = rsnd_dmapp_init,
+ .quit = rsnd_dmapp_stop,
+};
+
+/*
+ * Common DMAC Interface
+ */
+
+/*
+ * DMA read/write register offset
+ *
+ * RSND_xxx_I_N for Audio DMAC input
+ * RSND_xxx_O_N for Audio DMAC output
+ * RSND_xxx_I_P for Audio DMAC peri peri input
+ * RSND_xxx_O_P for Audio DMAC peri peri output
+ *
+ * ex) R-Car H2 case
+ * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out
+ * SSI : 0xec541000 / 0xec241008 / 0xec24100c
+ * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000
+ * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
+ * CMD : 0xec500000 / / 0xec008000 0xec308000
+ */
+#define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
+#define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
+
+#define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
+#define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
+
+#define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
+#define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
+
+#define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
+#define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i))
+
+#define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i))
+#define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i))
+
+#define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i))
+#define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i))
+
+static dma_addr_t
+rsnd_gen2_dma_addr(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI);
+ phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU);
+ int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);
+ int use_src = !!rsnd_io_to_mod_src(io);
+ int use_dvc = !!rsnd_io_to_mod_dvc(io);
+ int id = rsnd_mod_id(mod);
+ struct dma_addr {
+ dma_addr_t out_addr;
+ dma_addr_t in_addr;
+ } dma_addrs[3][2][3] = {
+ /* SRC */
+ {{{ 0, 0 },
+ /* Capture */
+ { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) },
+ { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } },
+ /* Playback */
+ {{ 0, 0, },
+ { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) },
+ { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } }
+ },
+ /* SSI */
+ /* Capture */
+ {{{ RDMA_SSI_O_N(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSI_I_N(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) } }
+ },
+ /* SSIU */
+ /* Capture */
+ {{{ RDMA_SSIU_O_N(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSIU_I_N(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id) } } },
+ };
+
+ /* it shouldn't happen */
+ if (use_dvc && !use_src)
+ dev_err(dev, "DVC is selected without SRC\n");
+
+ /* use SSIU or SSI ? */
+ if (is_ssi && rsnd_ssi_use_busif(mod))
+ is_ssi++;
+
+ return (is_from) ?
+ dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr :
+ dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr;
+}
+
+static dma_addr_t rsnd_dma_addr(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ /*
+ * gen1 uses default DMA addr
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ if (!mod)
+ return 0;
+
+ return rsnd_gen2_dma_addr(priv, mod, is_play, is_from);
+}
+
+#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */
+static void rsnd_dma_of_path(struct rsnd_dma *dma,
+ int is_play,
+ struct rsnd_mod **mod_from,
+ struct rsnd_mod **mod_to)
+{
+ struct rsnd_mod *this = rsnd_dma_to_mod(dma);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(this);
+ struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ struct rsnd_mod *mod[MOD_MAX];
+ int i, index;
+
+
+ for (i = 0; i < MOD_MAX; i++)
+ mod[i] = NULL;
+
+ /*
+ * in play case...
+ *
+ * src -> dst
+ *
+ * mem -> SSI
+ * mem -> SRC -> SSI
+ * mem -> SRC -> DVC -> SSI
+ */
+ mod[0] = NULL; /* for "mem" */
+ index = 1;
+ for (i = 1; i < MOD_MAX; i++) {
+ if (!src) {
+ mod[i] = ssi;
+ } else if (!dvc) {
+ mod[i] = src;
+ src = NULL;
+ } else {
+ if ((!is_play) && (this == src))
+ this = dvc;
+
+ mod[i] = (is_play) ? src : dvc;
+ i++;
+ mod[i] = (is_play) ? dvc : src;
+ src = NULL;
+ dvc = NULL;
+ }
+
+ if (mod[i] == this)
+ index = i;
+
+ if (mod[i] == ssi)
+ break;
+ }
+
+ if (is_play) {
+ *mod_from = mod[index - 1];
+ *mod_to = mod[index];
+ } else {
+ *mod_from = mod[index];
+ *mod_to = mod[index - 1];
+ }
+}
+
+void rsnd_dma_stop(struct rsnd_dma *dma)
+{
+ dma->ops->stop(dma);
+}
+
+void rsnd_dma_start(struct rsnd_dma *dma)
+{
+ dma->ops->start(dma);
+}
+
+void rsnd_dma_quit(struct rsnd_dma *dma)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+
+ if (!dmac)
+ return;
+
+ dma->ops->quit(dma);
+}
+
+int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id)
+{
+ struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+ struct rsnd_mod *mod_from;
+ struct rsnd_mod *mod_to;
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ int is_play = rsnd_io_is_play(io);
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ if (!dmac)
+ return -EAGAIN;
+
+ rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to);
+
+ dma->src_addr = rsnd_dma_addr(priv, mod_from, is_play, 1);
+ dma->dst_addr = rsnd_dma_addr(priv, mod_to, is_play, 0);
+
+ /* for Gen2 */
+ if (mod_from && mod_to)
+ dma->ops = &rsnd_dmapp_ops;
+ else
+ dma->ops = &rsnd_dmaen_ops;
+
+ /* for Gen1, overwrite */
+ if (rsnd_is_gen1(priv))
+ dma->ops = &rsnd_dmaen_ops;
+
+ return dma->ops->init(priv, dma, id, mod_from, mod_to);
+}
+
+int rsnd_dma_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dma_ctrl *dmac;
+ struct resource *res;
+
+ /*
+ * for Gen1
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /*
+ * for Gen2
+ */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
+ dmac = devm_kzalloc(dev, sizeof(*dmac), GFP_KERNEL);
+ if (!dmac || !res) {
+ dev_err(dev, "dma allocate failed\n");
+ return 0; /* it will be PIO mode */
+ }
+
+ dmac->dmapp_num = 0;
+ dmac->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(dmac->base))
+ return PTR_ERR(dmac->base);
+
+ priv->dma = dmac;
+
+ return 0;
+}
struct rsnd_kctrl_cfg_s rdown; /* Ramp Rate Down */
};
+#define rsnd_dvc_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,dvc")
+
#define rsnd_mod_to_dvc(_mod) \
container_of((_mod), struct rsnd_dvc, mod)
((pos) = (struct rsnd_dvc *)(priv)->dvc + i); \
i++)
-static const char const *dvc_ramp_rate[] = {
+static const char * const dvc_ramp_rate[] = {
"128 dB/1 step", /* 00000 */
"64 dB/1 step", /* 00001 */
"32 dB/1 step", /* 00010 */
rsnd_mod_write(mod, DVC_DVUER, 1);
}
-static int rsnd_dvc_probe_gen2(struct rsnd_mod *mod,
- struct rsnd_priv *priv)
-{
- struct device *dev = rsnd_priv_to_dev(priv);
-
- dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
-
- return 0;
-}
-
static int rsnd_dvc_remove_gen2(struct rsnd_mod *mod,
struct rsnd_priv *priv)
{
return 0;
}
+static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ return rsnd_dma_request_channel(rsnd_dvc_of_node(priv),
+ mod, "tx");
+}
+
static struct rsnd_mod_ops rsnd_dvc_ops = {
.name = DVC_NAME,
- .probe = rsnd_dvc_probe_gen2,
+ .dma_req = rsnd_dvc_dma_req,
.remove = rsnd_dvc_remove_gen2,
.init = rsnd_dvc_init,
.quit = rsnd_dvc_quit,
clk, RSND_MOD_DVC, i);
if (ret)
return ret;
-
- dev_dbg(dev, "CMD%d probed\n", i);
}
return 0;
struct regmap *regmap[RSND_BASE_MAX];
struct regmap_field *regs[RSND_REG_MAX];
+ phys_addr_t res[RSND_REG_MAX];
};
#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
mask, data);
}
-#define rsnd_gen_regmap_init(priv, id_size, reg_id, conf) \
- _rsnd_gen_regmap_init(priv, id_size, reg_id, conf, ARRAY_SIZE(conf))
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
+{
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ return gen->res[reg_id];
+}
+
+#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \
+ _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
int id_size,
int reg_id,
+ const char *name,
struct rsnd_regmap_field_conf *conf,
int conf_size)
{
regc.reg_bits = 32;
regc.val_bits = 32;
regc.reg_stride = 4;
+ regc.name = name;
- res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+ if (!res)
+ res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
if (!res)
return -ENODEV;
gen->base[reg_id] = base;
gen->regmap[reg_id] = regmap;
+ gen->res[reg_id] = res->start;
for (i = 0; i < conf_size; i++) {
return 0;
}
-/*
- * DMA read/write register offset
- *
- * RSND_xxx_I_N for Audio DMAC input
- * RSND_xxx_O_N for Audio DMAC output
- * RSND_xxx_I_P for Audio DMAC peri peri input
- * RSND_xxx_O_P for Audio DMAC peri peri output
- *
- * ex) R-Car H2 case
- * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out
- * SSI : 0xec541000 / 0xec241008 / 0xec24100c
- * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000
- * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
- * CMD : 0xec500000 / / 0xec008000 0xec308000
- */
-#define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
-#define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
-
-#define RDMA_SSIU_I_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
-#define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i))
-
-#define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
-#define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i))
-
-#define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
-#define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i))
-
-#define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i))
-#define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i))
-
-#define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i))
-#define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i))
-
-static dma_addr_t
-rsnd_gen2_dma_addr(struct rsnd_priv *priv,
- struct rsnd_mod *mod,
- int is_play, int is_from)
-{
- struct platform_device *pdev = rsnd_priv_to_pdev(priv);
- struct device *dev = rsnd_priv_to_dev(priv);
- struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
- dma_addr_t ssi_reg = platform_get_resource(pdev,
- IORESOURCE_MEM, RSND_GEN2_SSI)->start;
- dma_addr_t src_reg = platform_get_resource(pdev,
- IORESOURCE_MEM, RSND_GEN2_SCU)->start;
- int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);
- int use_src = !!rsnd_io_to_mod_src(io);
- int use_dvc = !!rsnd_io_to_mod_dvc(io);
- int id = rsnd_mod_id(mod);
- struct dma_addr {
- dma_addr_t out_addr;
- dma_addr_t in_addr;
- } dma_addrs[3][2][3] = {
- /* SRC */
- {{{ 0, 0 },
- /* Capture */
- { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) },
- { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } },
- /* Playback */
- {{ 0, 0, },
- { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) },
- { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } }
- },
- /* SSI */
- /* Capture */
- {{{ RDMA_SSI_O_N(ssi, id), 0 },
- { RDMA_SSIU_O_P(ssi, id), 0 },
- { RDMA_SSIU_O_P(ssi, id), 0 } },
- /* Playback */
- {{ 0, RDMA_SSI_I_N(ssi, id) },
- { 0, RDMA_SSIU_I_P(ssi, id) },
- { 0, RDMA_SSIU_I_P(ssi, id) } }
- },
- /* SSIU */
- /* Capture */
- {{{ RDMA_SSIU_O_N(ssi, id), 0 },
- { RDMA_SSIU_O_P(ssi, id), 0 },
- { RDMA_SSIU_O_P(ssi, id), 0 } },
- /* Playback */
- {{ 0, RDMA_SSIU_I_N(ssi, id) },
- { 0, RDMA_SSIU_I_P(ssi, id) },
- { 0, RDMA_SSIU_I_P(ssi, id) } } },
- };
-
- /* it shouldn't happen */
- if (use_dvc && !use_src)
- dev_err(dev, "DVC is selected without SRC\n");
-
- /* use SSIU or SSI ? */
- if (is_ssi && (0 == strcmp(rsnd_mod_dma_name(mod), "ssiu")))
- is_ssi++;
-
- return (is_from) ?
- dma_addrs[is_ssi][is_play][use_src + use_dvc].out_addr :
- dma_addrs[is_ssi][is_play][use_src + use_dvc].in_addr;
-}
-
-dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
- struct rsnd_mod *mod,
- int is_play, int is_from)
-{
- /*
- * gen1 uses default DMA addr
- */
- if (rsnd_is_gen1(priv))
- return 0;
-
- if (!mod)
- return 0;
-
- return rsnd_gen2_dma_addr(priv, mod, is_play, is_from);
-}
-
/*
* Gen2
*/
static int rsnd_gen2_probe(struct platform_device *pdev,
struct rsnd_priv *priv)
{
- struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_regmap_field_conf conf_ssiu[] = {
RSND_GEN_S_REG(SSI_MODE0, 0x800),
RSND_GEN_S_REG(SSI_MODE1, 0x804),
int ret_adg;
int ret_ssi;
- ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, conf_ssiu);
- ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, conf_scu);
- ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, conf_adg);
- ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, conf_ssi);
+ ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
+ ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu);
+ ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi);
if (ret_ssiu < 0 ||
ret_scu < 0 ||
ret_adg < 0 ||
ret_ssi < 0)
return ret_ssiu | ret_scu | ret_adg | ret_ssi;
- dev_dbg(dev, "Gen2 is probed\n");
-
return 0;
}
static int rsnd_gen1_probe(struct platform_device *pdev,
struct rsnd_priv *priv)
{
- struct device *dev = rsnd_priv_to_dev(priv);
struct rsnd_regmap_field_conf conf_sru[] = {
RSND_GEN_S_REG(SRC_ROUTE_SEL, 0x00),
RSND_GEN_S_REG(SRC_TMG_SEL0, 0x08),
int ret_adg;
int ret_ssi;
- ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, conf_sru);
- ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, conf_adg);
- ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, conf_ssi);
+ ret_sru = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SRU, "sru", conf_sru);
+ ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
if (ret_sru < 0 ||
ret_adg < 0 ||
ret_ssi < 0)
return ret_sru | ret_adg | ret_ssi;
- dev_dbg(dev, "Gen1 is probed\n");
-
return 0;
}
/*
* R-Car DMA
*/
-struct rsnd_dma {
- struct sh_dmae_slave slave;
+struct rsnd_dma;
+struct rsnd_dma_ops {
+ void (*start)(struct rsnd_dma *dma);
+ void (*stop)(struct rsnd_dma *dma);
+ int (*init)(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to);
+ void (*quit)(struct rsnd_dma *dma);
+};
+
+struct rsnd_dmaen {
struct dma_chan *chan;
- enum dma_transfer_direction dir;
- dma_addr_t addr;
};
+struct rsnd_dmapp {
+ int dmapp_id;
+ u32 chcr;
+};
+
+struct rsnd_dma {
+ struct rsnd_dma_ops *ops;
+ dma_addr_t src_addr;
+ dma_addr_t dst_addr;
+ union {
+ struct rsnd_dmaen en;
+ struct rsnd_dmapp pp;
+ } dma;
+};
+#define rsnd_dma_to_dmaen(dma) (&(dma)->dma.en)
+#define rsnd_dma_to_dmapp(dma) (&(dma)->dma.pp)
+
void rsnd_dma_start(struct rsnd_dma *dma);
void rsnd_dma_stop(struct rsnd_dma *dma);
-int rsnd_dma_available(struct rsnd_dma *dma);
-int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
- int is_play, int id);
-void rsnd_dma_quit(struct rsnd_priv *priv,
- struct rsnd_dma *dma);
+int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id);
+void rsnd_dma_quit(struct rsnd_dma *dma);
+int rsnd_dma_probe(struct platform_device *pdev,
+ const struct rsnd_of_data *of_data,
+ struct rsnd_priv *priv);
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name);
+#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
/*
* R-Car sound mod
struct rsnd_mod_ops {
char *name;
- char* (*dma_name)(struct rsnd_mod *mod);
+ struct dma_chan* (*dma_req)(struct rsnd_mod *mod);
int (*probe)(struct rsnd_mod *mod,
struct rsnd_priv *priv);
int (*remove)(struct rsnd_mod *mod,
struct rsnd_priv *priv);
int (*pcm_new)(struct rsnd_mod *mod,
struct snd_soc_pcm_runtime *rtd);
+ int (*hw_params)(struct rsnd_mod *mod,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params);
int (*fallback)(struct rsnd_mod *mod,
struct rsnd_priv *priv);
};
* 2 0: start 1: stop
* 3 0: pcm_new
* 4 0: fallback
+ *
+ * 31 bit is always called (see __rsnd_mod_call)
+ * 31 0: hw_params
*/
#define __rsnd_mod_shift_probe 0
#define __rsnd_mod_shift_remove 0
#define __rsnd_mod_shift_stop 2
#define __rsnd_mod_shift_pcm_new 3
#define __rsnd_mod_shift_fallback 4
+#define __rsnd_mod_shift_hw_params 31 /* always called */
#define __rsnd_mod_call_probe 0
#define __rsnd_mod_call_remove 1
#define __rsnd_mod_call_stop 1
#define __rsnd_mod_call_pcm_new 0
#define __rsnd_mod_call_fallback 0
+#define __rsnd_mod_call_hw_params 0
#define rsnd_mod_to_priv(mod) (rsnd_io_to_priv(rsnd_mod_to_io(mod)))
#define rsnd_mod_to_dma(mod) (&(mod)->dma)
-#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
#define rsnd_mod_to_io(mod) ((mod)->io)
#define rsnd_mod_id(mod) ((mod)->id)
#define rsnd_mod_hw_start(mod) clk_enable((mod)->clk)
int id);
void rsnd_mod_quit(struct rsnd_mod *mod);
char *rsnd_mod_name(struct rsnd_mod *mod);
-char *rsnd_mod_dma_name(struct rsnd_mod *mod);
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod);
/*
* R-Car sound DAI
*/
#define RSND_DAI_NAME_SIZE 16
struct rsnd_dai_stream {
+ char name[RSND_DAI_NAME_SIZE];
struct snd_pcm_substream *substream;
struct rsnd_mod *mod[RSND_MOD_MAX];
struct rsnd_dai_path_info *info; /* rcar_snd.h */
void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
struct rsnd_mod *mod,
enum rsnd_reg reg);
-dma_addr_t rsnd_gen_dma_addr(struct rsnd_priv *priv,
- struct rsnd_mod *mod,
- int is_play, int is_from);
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id);
#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
*/
void *adg;
+ /*
+ * below value will be filled on rsnd_dma_probe()
+ */
+ void *dma;
+
/*
* below value will be filled on rsnd_ssi_probe()
*/
#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
-#define rsnd_info_is_playback(priv, type) \
-({ \
- struct rcar_snd_info *info = rsnd_priv_to_info(priv); \
- int i, is_play = 0; \
- for (i = 0; i < info->dai_info_nr; i++) { \
- if (info->dai_info[i].playback.type == (type)->info) { \
- is_play = 1; \
- break; \
- } \
- } \
- is_play; \
-})
-
/*
* rsnd_kctrl
*/
struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
int rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
+int rsnd_ssi_use_busif(struct rsnd_mod *mod);
/*
* R-Car DVC
--- /dev/null
+/*
+ * Renesas Sampling Rate Convert Sound Card for DPCM
+ *
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * based on ${LINUX}/sound/soc/generic/simple-card.c
+ *
+ * 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/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+struct rsrc_card_of_data {
+ const char *prefix;
+ const struct snd_soc_dapm_route *routes;
+ int num_routes;
+};
+
+static const struct snd_soc_dapm_route routes_ssi0_ak4642[] = {
+ {"ak4642 Playback", NULL, "DAI0 Playback"},
+ {"DAI0 Capture", NULL, "ak4642 Capture"},
+};
+
+static const struct rsrc_card_of_data routes_of_ssi0_ak4642 = {
+ .prefix = "ak4642",
+ .routes = routes_ssi0_ak4642,
+ .num_routes = ARRAY_SIZE(routes_ssi0_ak4642),
+};
+
+static const struct of_device_id rsrc_card_of_match[] = {
+ { .compatible = "renesas,rsrc-card,lager", .data = &routes_of_ssi0_ak4642 },
+ { .compatible = "renesas,rsrc-card,koelsch", .data = &routes_of_ssi0_ak4642 },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsrc_card_of_match);
+
+struct rsrc_card_dai {
+ const char *name;
+ unsigned int fmt;
+ unsigned int sysclk;
+ struct clk *clk;
+};
+
+#define RSRC_FB_NUM 2 /* FE/BE */
+#define IDX_CPU 0
+#define IDX_CODEC 1
+struct rsrc_card_priv {
+ struct snd_soc_card snd_card;
+ struct rsrc_card_dai_props {
+ struct rsrc_card_dai cpu_dai;
+ struct rsrc_card_dai codec_dai;
+ } dai_props[RSRC_FB_NUM];
+ struct snd_soc_codec_conf codec_conf;
+ struct snd_soc_dai_link dai_link[RSRC_FB_NUM];
+ u32 convert_rate;
+};
+
+#define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev)
+#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
+#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + i)
+#define rsrc_dev_to_of_data(dev) (of_match_device(rsrc_card_of_match, (dev))->data)
+
+static int rsrc_card_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct rsrc_card_dai_props *dai_props =
+ &priv->dai_props[rtd - rtd->card->rtd];
+ int ret;
+
+ ret = clk_prepare_enable(dai_props->cpu_dai.clk);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(dai_props->codec_dai.clk);
+ if (ret)
+ clk_disable_unprepare(dai_props->cpu_dai.clk);
+
+ return ret;
+}
+
+static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct rsrc_card_dai_props *dai_props =
+ &priv->dai_props[rtd - rtd->card->rtd];
+
+ clk_disable_unprepare(dai_props->cpu_dai.clk);
+
+ clk_disable_unprepare(dai_props->codec_dai.clk);
+}
+
+static struct snd_soc_ops rsrc_card_ops = {
+ .startup = rsrc_card_startup,
+ .shutdown = rsrc_card_shutdown,
+};
+
+static int __rsrc_card_dai_init(struct snd_soc_dai *dai,
+ struct rsrc_card_dai *set)
+{
+ int ret;
+
+ if (set->fmt) {
+ ret = snd_soc_dai_set_fmt(dai, set->fmt);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "set_fmt error\n");
+ goto err;
+ }
+ }
+
+ if (set->sysclk) {
+ ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "set_sysclk error\n");
+ goto err;
+ }
+ }
+
+ ret = 0;
+
+err:
+ return ret;
+}
+
+static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *codec = rtd->codec_dai;
+ struct snd_soc_dai *cpu = rtd->cpu_dai;
+ struct rsrc_card_dai_props *dai_props;
+ int num, ret;
+
+ num = rtd - rtd->card->rtd;
+ dai_props = &priv->dai_props[num];
+ ret = __rsrc_card_dai_init(codec, &dai_props->codec_dai);
+ if (ret < 0)
+ return ret;
+
+ ret = __rsrc_card_dai_init(cpu, &dai_props->cpu_dai);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+
+ if (!priv->convert_rate)
+ return 0;
+
+ rate->min = rate->max = priv->convert_rate;
+
+ return 0;
+}
+
+static int
+rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
+ struct device_node *np,
+ struct rsrc_card_dai *dai,
+ struct snd_soc_dai_link *dai_link,
+ int *args_count)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+ struct of_phandle_args args;
+ struct device_node **p_node;
+ struct clk *clk;
+ const char **dai_name;
+ const char **name;
+ u32 val;
+ int ret;
+
+ if (args_count) {
+ p_node = &dai_link->cpu_of_node;
+ dai_name = &dai_link->cpu_dai_name;
+ name = &dai_link->cpu_name;
+ } else {
+ p_node = &dai_link->codec_of_node;
+ dai_name = &dai_link->codec_dai_name;
+ name = &dai_link->codec_name;
+ }
+
+ if (!np) {
+ /* use snd-soc-dummy */
+ *p_node = NULL;
+ *dai_name = "snd-soc-dummy-dai";
+ *name = "snd-soc-dummy";
+ return 0;
+ }
+
+ /*
+ * Get node via "sound-dai = <&phandle port>"
+ * it will be used as xxx_of_node on soc_bind_dai_link()
+ */
+ ret = of_parse_phandle_with_args(np, "sound-dai",
+ "#sound-dai-cells", 0, &args);
+ if (ret)
+ return ret;
+
+ *p_node = args.np;
+
+ /* Get dai->name */
+ ret = snd_soc_of_get_dai_name(np, dai_name);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * FIXME
+ *
+ * rsrc assumes DPCM playback/capture
+ */
+ dai_link->dpcm_playback = 1;
+ dai_link->dpcm_capture = 1;
+
+ if (args_count) {
+ *args_count = args.args_count;
+ dai_link->dynamic = 1;
+ } else {
+ dai_link->no_pcm = 1;
+ priv->codec_conf.of_node = (*p_node);
+ priv->codec_conf.name_prefix = of_data->prefix;
+ }
+
+ /*
+ * Parse dai->sysclk come from "clocks = <&xxx>"
+ * (if system has common clock)
+ * or "system-clock-frequency = <xxx>"
+ * or device's module clock.
+ */
+ if (of_property_read_bool(np, "clocks")) {
+ clk = of_clk_get(np, 0);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ return ret;
+ }
+
+ dai->sysclk = clk_get_rate(clk);
+ dai->clk = clk;
+ } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
+ dai->sysclk = val;
+ } else {
+ clk = of_clk_get(args.np, 0);
+ if (!IS_ERR(clk))
+ dai->sysclk = clk_get_rate(clk);
+ }
+
+ return 0;
+}
+
+static int rsrc_card_parse_daifmt(struct device_node *node,
+ struct rsrc_card_priv *priv,
+ struct device_node *codec,
+ int idx)
+{
+ struct device_node *bitclkmaster = NULL;
+ struct device_node *framemaster = NULL;
+ struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
+ struct rsrc_card_dai *cpu_dai = &dai_props->cpu_dai;
+ struct rsrc_card_dai *codec_dai = &dai_props->codec_dai;
+ unsigned int daifmt;
+
+ daifmt = snd_soc_of_parse_daifmt(node, NULL,
+ &bitclkmaster, &framemaster);
+ daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+
+ if (!bitclkmaster && !framemaster)
+ return -EINVAL;
+
+ if (codec == bitclkmaster)
+ daifmt |= (codec == framemaster) ?
+ SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
+ else
+ daifmt |= (codec == framemaster) ?
+ SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
+
+ cpu_dai->fmt = daifmt;
+ codec_dai->fmt = daifmt;
+
+ of_node_put(bitclkmaster);
+ of_node_put(framemaster);
+
+ return 0;
+}
+
+static int rsrc_card_dai_link_of(struct device_node *node,
+ struct rsrc_card_priv *priv,
+ int idx)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+ struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
+ struct device_node *cpu = NULL;
+ struct device_node *codec = NULL;
+ char *name;
+ char prop[128];
+ int ret, cpu_args;
+
+ cpu = of_get_child_by_name(node, "cpu");
+ codec = of_get_child_by_name(node, "codec");
+
+ if (!cpu || !codec) {
+ ret = -EINVAL;
+ dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
+ goto dai_link_of_err;
+ }
+
+ ret = rsrc_card_parse_daifmt(node, priv, codec, idx);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CPU) ? cpu : NULL,
+ &dai_props->cpu_dai,
+ dai_link,
+ &cpu_args);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CODEC) ? codec : NULL,
+ &dai_props->codec_dai,
+ dai_link,
+ NULL);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
+ ret = -EINVAL;
+ goto dai_link_of_err;
+ }
+
+ /* Simple Card assumes platform == cpu */
+ dai_link->platform_of_node = dai_link->cpu_of_node;
+
+ /* DAI link name is created from CPU/CODEC dai name */
+ name = devm_kzalloc(dev,
+ strlen(dai_link->cpu_dai_name) +
+ strlen(dai_link->codec_dai_name) + 2,
+ GFP_KERNEL);
+ if (!name) {
+ ret = -ENOMEM;
+ goto dai_link_of_err;
+ }
+
+ sprintf(name, "%s-%s", dai_link->cpu_dai_name,
+ dai_link->codec_dai_name);
+ dai_link->name = dai_link->stream_name = name;
+ dai_link->ops = &rsrc_card_ops;
+ dai_link->init = rsrc_card_dai_init;
+
+ if (idx == IDX_CODEC)
+ dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup;
+
+ dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
+ dev_dbg(dev, "\tcpu : %s / %04x / %d\n",
+ dai_link->cpu_dai_name,
+ dai_props->cpu_dai.fmt,
+ dai_props->cpu_dai.sysclk);
+ dev_dbg(dev, "\tcodec : %s / %04x / %d\n",
+ dai_link->codec_dai_name,
+ dai_props->codec_dai.fmt,
+ dai_props->codec_dai.sysclk);
+
+ /*
+ * In soc_bind_dai_link() will check cpu name after
+ * of_node matching if dai_link has cpu_dai_name.
+ * but, it will never match if name was created by
+ * fmt_single_name() remove cpu_dai_name if cpu_args
+ * was 0. See:
+ * fmt_single_name()
+ * fmt_multiple_name()
+ */
+ if (!cpu_args)
+ dai_link->cpu_dai_name = NULL;
+
+dai_link_of_err:
+ of_node_put(cpu);
+ of_node_put(codec);
+
+ return ret;
+}
+
+static int rsrc_card_parse_of(struct device_node *node,
+ struct rsrc_card_priv *priv)
+{
+ struct device *dev = rsrc_priv_to_dev(priv);
+ const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+ int ret;
+ int i;
+
+ if (!node)
+ return -EINVAL;
+
+ /* Parse the card name from DT */
+ snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
+
+ /* DAPM routes */
+ priv->snd_card.of_dapm_routes = of_data->routes;
+ priv->snd_card.num_of_dapm_routes = of_data->num_routes;
+
+ /* sampling rate convert */
+ of_property_read_u32(node, "convert-rate", &priv->convert_rate);
+
+ dev_dbg(dev, "New rsrc-audio-card: %s (%d)\n",
+ priv->snd_card.name ? priv->snd_card.name : "",
+ priv->convert_rate);
+
+ /* FE/BE */
+ for (i = 0; i < RSRC_FB_NUM; i++) {
+ ret = rsrc_card_dai_link_of(node, priv, i);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (!priv->snd_card.name)
+ priv->snd_card.name = priv->snd_card.dai_link->name;
+
+ return 0;
+}
+
+/* Decrease the reference count of the device nodes */
+static int rsrc_card_unref(struct snd_soc_card *card)
+{
+ struct snd_soc_dai_link *dai_link;
+ int num_links;
+
+ for (num_links = 0, dai_link = card->dai_link;
+ num_links < card->num_links;
+ num_links++, dai_link++) {
+ of_node_put(dai_link->cpu_of_node);
+ of_node_put(dai_link->codec_of_node);
+ }
+ return 0;
+}
+
+static int rsrc_card_probe(struct platform_device *pdev)
+{
+ struct rsrc_card_priv *priv;
+ struct snd_soc_dai_link *dai_link;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ /* Allocate the private data */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ /* Init snd_soc_card */
+ priv->snd_card.owner = THIS_MODULE;
+ priv->snd_card.dev = dev;
+ dai_link = priv->dai_link;
+ priv->snd_card.dai_link = dai_link;
+ priv->snd_card.num_links = RSRC_FB_NUM;
+ priv->snd_card.codec_conf = &priv->codec_conf;
+ priv->snd_card.num_configs = 1;
+
+ ret = rsrc_card_parse_of(np, priv);
+ if (ret < 0) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "parse error %d\n", ret);
+ goto err;
+ }
+
+ snd_soc_card_set_drvdata(&priv->snd_card, priv);
+
+ ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
+ if (ret >= 0)
+ return ret;
+err:
+ rsrc_card_unref(&priv->snd_card);
+
+ return ret;
+}
+
+static int rsrc_card_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ return rsrc_card_unref(card);
+}
+
+static struct platform_driver rsrc_card = {
+ .driver = {
+ .name = "renesas-src-audio-card",
+ .of_match_table = rsrc_card_of_match,
+ },
+ .probe = rsrc_card_probe,
+ .remove = rsrc_card_remove,
+};
+
+module_platform_driver(rsrc_card);
+
+MODULE_ALIAS("platform:renesas-src-audio-card");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Renesas Sampling Rate Convert Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
struct rsnd_src {
struct rsnd_src_platform_info *info; /* rcar_snd.h */
struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
+ struct rsnd_kctrl_cfg_s sync; /* sync convert */
+ u32 convert_rate; /* sampling rate convert */
int err;
};
#define RSND_SRC_NAME_SIZE 16
-#define rsnd_src_convert_rate(p) ((p)->info->convert_rate)
+#define rsnd_enable_sync_convert(src) ((src)->sen.val)
+#define rsnd_src_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
+
#define rsnd_mod_to_src(_mod) \
container_of((_mod), struct rsnd_src, mod)
-#define rsnd_src_dma_available(src) \
- rsnd_dma_available(rsnd_mod_to_dma(&(src)->mod))
#define for_each_rsnd_src(pos, priv, i) \
for ((i) = 0; \
/*
* Gen1/Gen2 common functions
*/
+static struct dma_chan *rsnd_src_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+
+ return rsnd_dma_request_channel(rsnd_src_of_node(priv),
+ mod,
+ is_play ? "rx" : "tx");
+}
+
int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
int use_busif)
{
return 0;
}
+static u32 rsnd_src_convert_rate(struct rsnd_src *src)
+{
+ struct rsnd_mod *mod = &src->mod;
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 convert_rate;
+
+ if (!runtime)
+ return 0;
+
+ if (!rsnd_enable_sync_convert(src))
+ return src->convert_rate;
+
+ convert_rate = src->sync.val;
+
+ if (!convert_rate)
+ convert_rate = src->convert_rate;
+
+ if (!convert_rate)
+ convert_rate = runtime->rate;
+
+ return convert_rate;
+}
+
unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
struct rsnd_dai_stream *io,
struct snd_pcm_runtime *runtime)
return 0;
}
-static int rsnd_src_init(struct rsnd_mod *mod)
+static int rsnd_src_hw_params(struct rsnd_mod *mod,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *fe_params)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct snd_soc_pcm_runtime *fe = substream->private_data;
+
+ /* default value (mainly for non-DT) */
+ src->convert_rate = src->info->convert_rate;
+
+ /*
+ * SRC assumes that it is used under DPCM if user want to use
+ * sampling rate convert. Then, SRC should be FE.
+ * And then, this function will be called *after* BE settings.
+ * this means, each BE already has fixuped hw_params.
+ * see
+ * dpcm_fe_dai_hw_params()
+ * dpcm_be_dai_hw_params()
+ */
+ if (fe->dai_link->dynamic) {
+ int stream = substream->stream;
+ struct snd_soc_dpcm *dpcm;
+ struct snd_pcm_hw_params *be_params;
+
+ list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
+ be_params = &dpcm->hw_params;
+
+ if (params_rate(fe_params) != params_rate(be_params))
+ src->convert_rate = params_rate(be_params);
+ }
+ }
+
+ return 0;
+}
+
+static int rsnd_src_init(struct rsnd_mod *mod,
+ struct rsnd_priv *priv)
{
struct rsnd_src *src = rsnd_mod_to_src(mod);
src->err = 0;
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
/*
* Initialize the operation of the SRC internal circuits
* see rsnd_src_start()
dev_warn(dev, "%s[%d] under/over flow err = %d\n",
rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
+ src->convert_rate = 0;
+
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
return 0;
}
return 0;
}
-static int rsnd_src_probe_gen1(struct rsnd_mod *mod,
- struct rsnd_priv *priv)
-{
- struct device *dev = rsnd_priv_to_dev(priv);
-
- dev_dbg(dev, "%s[%d] (Gen1) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
-
- return 0;
-}
-
static int rsnd_src_init_gen1(struct rsnd_mod *mod,
struct rsnd_priv *priv)
{
int ret;
- ret = rsnd_src_init(mod);
+ ret = rsnd_src_init(mod, priv);
if (ret < 0)
return ret;
static struct rsnd_mod_ops rsnd_src_gen1_ops = {
.name = SRC_NAME,
- .probe = rsnd_src_probe_gen1,
+ .dma_req = rsnd_src_dma_req,
.init = rsnd_src_init_gen1,
.quit = rsnd_src_quit,
.start = rsnd_src_start_gen1,
.stop = rsnd_src_stop_gen1,
+ .hw_params = rsnd_src_hw_params,
};
/*
if (rsnd_src_error_record_gen2(mod)) {
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
struct device *dev = rsnd_priv_to_dev(priv);
- _rsnd_src_stop_gen2(mod);
- _rsnd_src_start_gen2(mod);
-
dev_dbg(dev, "%s[%d] restart\n",
rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ _rsnd_src_stop_gen2(mod);
+ if (src->err < 1024)
+ _rsnd_src_start_gen2(mod);
+ else
+ dev_warn(dev, "no more SRC restart\n");
}
return IRQ_HANDLED;
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
struct rsnd_src *src = rsnd_mod_to_src(mod);
u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 cr, route;
uint ratio;
int ret;
if (ret < 0)
return ret;
- rsnd_mod_write(mod, SRC_SRCCR, 0x00011110);
-
+ cr = 0x00011110;
+ route = 0x0;
if (convert_rate) {
- /* Gen1/Gen2 are not compatible */
- rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
+ route = 0x1;
+
+ if (rsnd_enable_sync_convert(src)) {
+ cr |= 0x1;
+ route |= rsnd_io_is_play(io) ?
+ (0x1 << 24) : (0x1 << 25);
+ }
}
+ rsnd_mod_write(mod, SRC_SRCCR, cr);
+ rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
+
switch (rsnd_mod_id(mod)) {
case 5:
case 6:
IRQF_SHARED,
dev_name(dev), mod);
if (ret)
- goto rsnd_src_probe_gen2_fail;
+ return ret;
}
ret = rsnd_dma_init(priv,
rsnd_mod_to_dma(mod),
- rsnd_info_is_playback(priv, src),
src->info->dma_id);
- if (ret)
- goto rsnd_src_probe_gen2_fail;
-
- dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
-
- return ret;
-
-rsnd_src_probe_gen2_fail:
- dev_err(dev, "%s[%d] (Gen2) failed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
return ret;
}
static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
struct rsnd_priv *priv)
{
- rsnd_dma_quit(priv, rsnd_mod_to_dma(mod));
+ rsnd_dma_quit(rsnd_mod_to_dma(mod));
return 0;
}
{
int ret;
- ret = rsnd_src_init(mod);
+ ret = rsnd_src_init(mod, priv);
if (ret < 0)
return ret;
return ret;
}
+static void rsnd_src_reconvert_update(struct rsnd_mod *mod)
+{
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate = rsnd_src_convert_rate(src);
+ u32 fsrate;
+
+ if (!runtime)
+ return;
+
+ if (!convert_rate)
+ convert_rate = runtime->rate;
+
+ fsrate = 0x0400000 / convert_rate * runtime->rate;
+
+ /* update IFS */
+ rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+}
+
+static int rsnd_src_pcm_new(struct rsnd_mod *mod,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ int ret;
+
+ /*
+ * enable SRC sync convert if possible
+ */
+
+ /*
+ * Gen1 is not supported
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /*
+ * SRC sync convert needs clock master
+ */
+ if (!rsnd_rdai_is_clk_master(rdai))
+ return 0;
+
+ /*
+ * We can't use SRC sync convert
+ * if it has DVC
+ */
+ if (rsnd_io_to_mod_dvc(io))
+ return 0;
+
+ /*
+ * enable sync convert
+ */
+ ret = rsnd_kctrl_new_s(mod, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate Switch" :
+ "SRC In Rate Switch",
+ rsnd_src_reconvert_update,
+ &src->sen, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_s(mod, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate" :
+ "SRC In Rate",
+ rsnd_src_reconvert_update,
+ &src->sync, 192000);
+
+ return ret;
+}
+
static struct rsnd_mod_ops rsnd_src_gen2_ops = {
.name = SRC_NAME,
+ .dma_req = rsnd_src_dma_req,
.probe = rsnd_src_probe_gen2,
.remove = rsnd_src_remove_gen2,
.init = rsnd_src_init_gen2,
.quit = rsnd_src_quit,
.start = rsnd_src_start_gen2,
.stop = rsnd_src_stop_gen2,
+ .hw_params = rsnd_src_hw_params,
+ .pcm_new = rsnd_src_pcm_new,
};
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
if (!of_data)
return;
- src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
+ src_node = rsnd_src_of_node(priv);
if (!src_node)
return;
ret = rsnd_mod_init(&src->mod, ops, clk, RSND_MOD_SRC, i);
if (ret)
return ret;
-
- dev_dbg(dev, "SRC%d probed\n", i);
}
return 0;
#define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
#define rsnd_dma_to_ssi(dma) rsnd_mod_to_ssi(rsnd_dma_to_mod(dma))
#define rsnd_ssi_pio_available(ssi) ((ssi)->info->irq > 0)
-#define rsnd_ssi_dma_available(ssi) \
- rsnd_dma_available(rsnd_mod_to_dma(&(ssi)->mod))
#define rsnd_ssi_clk_from_parent(ssi) ((ssi)->parent)
#define rsnd_ssi_mode_flags(p) ((p)->info->flags)
#define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id)
+#define rsnd_ssi_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,ssi")
-static int rsnd_ssi_use_busif(struct rsnd_mod *mod)
+int rsnd_ssi_use_busif(struct rsnd_mod *mod)
{
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
/*
* restart SSI
*/
- rsnd_ssi_stop(mod, priv);
- rsnd_ssi_start(mod, priv);
-
dev_dbg(dev, "%s[%d] restart\n",
rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ rsnd_ssi_stop(mod, priv);
+ if (ssi->err < 1024)
+ rsnd_ssi_start(mod, priv);
+ else
+ dev_warn(dev, "no more SSI restart\n");
}
rsnd_ssi_record_error(ssi, status);
rsnd_ssi_interrupt,
IRQF_SHARED,
dev_name(dev), ssi);
- if (ret)
- dev_err(dev, "%s[%d] (PIO) request interrupt failed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
- else
- dev_dbg(dev, "%s[%d] (PIO) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
return ret;
}
IRQF_SHARED,
dev_name(dev), ssi);
if (ret)
- goto rsnd_ssi_dma_probe_fail;
+ return ret;
ret = rsnd_dma_init(
priv, rsnd_mod_to_dma(mod),
- rsnd_info_is_playback(priv, ssi),
dma_id);
- if (ret)
- goto rsnd_ssi_dma_probe_fail;
-
- dev_dbg(dev, "%s[%d] (DMA) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
-
- return ret;
-
-rsnd_ssi_dma_probe_fail:
- dev_err(dev, "%s[%d] (DMA) is failed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
return ret;
}
struct device *dev = rsnd_priv_to_dev(priv);
int irq = ssi->info->irq;
- rsnd_dma_quit(priv, rsnd_mod_to_dma(mod));
+ rsnd_dma_quit(rsnd_mod_to_dma(mod));
/* PIO will request IRQ again */
devm_free_irq(dev, irq, ssi);
return 0;
}
-static char *rsnd_ssi_dma_name(struct rsnd_mod *mod)
+static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_mod *mod)
{
- return rsnd_ssi_use_busif(mod) ? "ssiu" : SSI_NAME;
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+ char *name;
+
+ if (rsnd_ssi_use_busif(mod))
+ name = is_play ? "rxu" : "txu";
+ else
+ name = is_play ? "rx" : "tx";
+
+ return rsnd_dma_request_channel(rsnd_ssi_of_node(priv),
+ mod, name);
}
static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
.name = SSI_NAME,
- .dma_name = rsnd_ssi_dma_name,
+ .dma_req = rsnd_ssi_dma_req,
.probe = rsnd_ssi_dma_probe,
.remove = rsnd_ssi_dma_remove,
.init = rsnd_ssi_init,
if (!of_data)
return;
- node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
+ node = rsnd_ssi_of_node(priv);
if (!node)
return;
git.samba.org / sfrench / cifs-2.6.git / commitdiff