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Merge remote-tracking branches 'asoc/topic/atmel', 'asoc/topic/davinci', 'asoc/topic/gpiod' and 'asoc/topic/intel' into asoc-next

This commit is contained in:
Mark Brown 2015-03-05 01:07:21 +00:00
parent 6a93dd249b b6d6c6e95f 4da4608c91 34d7c3905a 5bb400ce4a
commit 4a7e041570
28 changed files with 504 additions and 1153 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/sound/pcm_params.h
View File

@ -366,4 +366,11 @@ static inline int params_physical_width(const struct snd_pcm_hw_params *p)
return snd_pcm_format_physical_width(params_format(p));
}
static inline void
params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt)
{
snd_mask_set(hw_param_mask(p, SNDRV_PCM_HW_PARAM_FORMAT),
(__force int)fmt);
}
#endif /* __SOUND_PCM_PARAMS_H */

3
include/sound/soc.h
View File

@ -954,6 +954,9 @@ struct snd_soc_dai_link {
unsigned int symmetric_channels:1;
unsigned int symmetric_samplebits:1;
/* Mark this pcm with non atomic ops */
bool nonatomic;
/* Do not create a PCM for this DAI link (Backend link) */
unsigned int no_pcm:1;

111
sound/soc/atmel/atmel_ssc_dai.c
View File

@ -187,6 +187,94 @@ static irqreturn_t atmel_ssc_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
/*
* When the bit clock is input, limit the maximum rate according to the
* Serial Clock Ratio Considerations section from the SSC documentation:
*
* The Transmitter and the Receiver can be programmed to operate
* with the clock signals provided on either the TK or RK pins.
* This allows the SSC to support many slave-mode data transfers.
* In this case, the maximum clock speed allowed on the RK pin is:
* - Peripheral clock divided by 2 if Receiver Frame Synchro is input
* - Peripheral clock divided by 3 if Receiver Frame Synchro is output
* In addition, the maximum clock speed allowed on the TK pin is:
* - Peripheral clock divided by 6 if Transmit Frame Synchro is input
* - Peripheral clock divided by 2 if Transmit Frame Synchro is output
*
* When the bit clock is output, limit the rate according to the
* SSC divider restrictions.
*/
static int atmel_ssc_hw_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct atmel_ssc_info *ssc_p = rule->private;
struct ssc_device *ssc = ssc_p->ssc;
struct snd_interval *i = hw_param_interval(params, rule->var);
struct snd_interval t;
struct snd_ratnum r = {
.den_min = 1,
.den_max = 4095,
.den_step = 1,
};
unsigned int num = 0, den = 0;
int frame_size;
int mck_div = 2;
int ret;
frame_size = snd_soc_params_to_frame_size(params);
if (frame_size < 0)
return frame_size;
switch (ssc_p->daifmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFS:
if ((ssc_p->dir_mask & SSC_DIR_MASK_CAPTURE)
&& ssc->clk_from_rk_pin)
/* Receiver Frame Synchro (i.e. capture)
* is output (format is _CFS) and the RK pin
* is used for input (format is _CBM_).
*/
mck_div = 3;
break;
case SND_SOC_DAIFMT_CBM_CFM:
if ((ssc_p->dir_mask & SSC_DIR_MASK_PLAYBACK)
&& !ssc->clk_from_rk_pin)
/* Transmit Frame Synchro (i.e. playback)
* is input (format is _CFM) and the TK pin
* is used for input (format _CBM_ but not
* using the RK pin).
*/
mck_div = 6;
break;
}
switch (ssc_p->daifmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
r.num = ssc_p->mck_rate / mck_div / frame_size;
ret = snd_interval_ratnum(i, 1, &r, &num, &den);
if (ret >= 0 && den && rule->var == SNDRV_PCM_HW_PARAM_RATE) {
params->rate_num = num;
params->rate_den = den;
}
break;
case SND_SOC_DAIFMT_CBM_CFS:
case SND_SOC_DAIFMT_CBM_CFM:
t.min = 8000;
t.max = ssc_p->mck_rate / mck_div / frame_size;
t.openmin = t.openmax = 0;
t.integer = 0;
ret = snd_interval_refine(i, &t);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
/*-------------------------------------------------------------------------*\
* DAI functions
@ -200,6 +288,7 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
struct atmel_pcm_dma_params *dma_params;
int dir, dir_mask;
int ret;
pr_debug("atmel_ssc_startup: SSC_SR=0x%u\n",
ssc_readl(ssc_p->ssc->regs, SR));
@ -207,6 +296,7 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
/* Enable PMC peripheral clock for this SSC */
pr_debug("atmel_ssc_dai: Starting clock\n");
clk_enable(ssc_p->ssc->clk);
ssc_p->mck_rate = clk_get_rate(ssc_p->ssc->clk);
/* Reset the SSC to keep it at a clean status */
ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST));
@ -219,6 +309,17 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
dir_mask = SSC_DIR_MASK_CAPTURE;
}
ret = snd_pcm_hw_rule_add(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
atmel_ssc_hw_rule_rate,
ssc_p,
SNDRV_PCM_HW_PARAM_FRAME_BITS,
SNDRV_PCM_HW_PARAM_CHANNELS, -1);
if (ret < 0) {
dev_err(dai->dev, "Failed to specify rate rule: %d\n", ret);
return ret;
}
dma_params = &ssc_dma_params[dai->id][dir];
dma_params->ssc = ssc_p->ssc;
dma_params->substream = substream;
@ -783,8 +884,6 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
# define atmel_ssc_resume NULL
#endif /* CONFIG_PM */
#define ATMEL_SSC_RATES (SNDRV_PCM_RATE_8000_96000)
#define ATMEL_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
@ -804,12 +903,16 @@ static struct snd_soc_dai_driver atmel_ssc_dai = {
.playback = {
.channels_min = 1,
.channels_max = 2,
.rates = ATMEL_SSC_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 8000,
.rate_max = 384000,
.formats = ATMEL_SSC_FORMATS,},
.capture = {
.channels_min = 1,
.channels_max = 2,
.rates = ATMEL_SSC_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 8000,
.rate_max = 384000,
.formats = ATMEL_SSC_FORMATS,},
.ops = &atmel_ssc_dai_ops,
};

1
sound/soc/atmel/atmel_ssc_dai.h
View File

@ -115,6 +115,7 @@ struct atmel_ssc_info {
unsigned short rcmr_period;
struct atmel_pcm_dma_params *dma_params[2];
struct atmel_ssc_state ssc_state;
unsigned long mck_rate;
};
int atmel_ssc_set_audio(int ssc_id);

17
sound/soc/codecs/adau1977.c
View File

@ -938,22 +938,15 @@ int adau1977_probe(struct device *dev, struct regmap *regmap,
adau1977->dvdd_reg = NULL;
}
adau1977->reset_gpio = devm_gpiod_get(dev, "reset");
if (IS_ERR(adau1977->reset_gpio)) {
ret = PTR_ERR(adau1977->reset_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return PTR_ERR(adau1977->reset_gpio);
adau1977->reset_gpio = NULL;
}
adau1977->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(adau1977->reset_gpio))
return PTR_ERR(adau1977->reset_gpio);
dev_set_drvdata(dev, adau1977);
if (adau1977->reset_gpio) {
ret = gpiod_direction_output(adau1977->reset_gpio, 0);
if (ret)
return ret;
if (adau1977->reset_gpio)
ndelay(100);
}
ret = adau1977_power_enable(adau1977);
if (ret)

17
sound/soc/codecs/cs35l32.c
View File

@ -437,20 +437,13 @@ static int cs35l32_i2c_probe(struct i2c_client *i2c_client,
}
/* Reset the Device */
cs35l32->reset_gpio = devm_gpiod_get(&i2c_client->dev,
"reset-gpios");
if (IS_ERR(cs35l32->reset_gpio)) {
ret = PTR_ERR(cs35l32->reset_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
cs35l32->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
"reset", GPIOD_OUT_LOW);
if (IS_ERR(cs35l32->reset_gpio))
return PTR_ERR(cs35l32->reset_gpio);
cs35l32->reset_gpio = NULL;
} else {
ret = gpiod_direction_output(cs35l32->reset_gpio, 0);
if (ret)
return ret;
if (cs35l32->reset_gpio)
gpiod_set_value_cansleep(cs35l32->reset_gpio, 1);
}
/* initialize codec */
ret = regmap_read(cs35l32->regmap, CS35L32_DEVID_AB, &reg);

17
sound/soc/codecs/cs4265.c
View File

@ -605,21 +605,14 @@ static int cs4265_i2c_probe(struct i2c_client *i2c_client,
return ret;
}
cs4265->reset_gpio = devm_gpiod_get(&i2c_client->dev,
"reset-gpios");
if (IS_ERR(cs4265->reset_gpio)) {
ret = PTR_ERR(cs4265->reset_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
cs4265->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
"reset", GPIOD_OUT_LOW);
if (IS_ERR(cs4265->reset_gpio))
return PTR_ERR(cs4265->reset_gpio);
cs4265->reset_gpio = NULL;
} else {
ret = gpiod_direction_output(cs4265->reset_gpio, 0);
if (ret)
return ret;
if (cs4265->reset_gpio) {
mdelay(1);
gpiod_set_value_cansleep(cs4265->reset_gpio, 1);
}
i2c_set_clientdata(i2c_client, cs4265);

28
sound/soc/codecs/sta350.c
View File

@ -1213,27 +1213,15 @@ static int sta350_i2c_probe(struct i2c_client *i2c,
#endif
/* GPIOs */
sta350->gpiod_nreset = devm_gpiod_get(dev, "reset");
if (IS_ERR(sta350->gpiod_nreset)) {
ret = PTR_ERR(sta350->gpiod_nreset);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
sta350->gpiod_nreset = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(sta350->gpiod_nreset))
return PTR_ERR(sta350->gpiod_nreset);
sta350->gpiod_nreset = NULL;
} else {
gpiod_direction_output(sta350->gpiod_nreset, 0);
}
sta350->gpiod_power_down = devm_gpiod_get(dev, "power-down");
if (IS_ERR(sta350->gpiod_power_down)) {
ret = PTR_ERR(sta350->gpiod_power_down);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
sta350->gpiod_power_down = NULL;
} else {
gpiod_direction_output(sta350->gpiod_power_down, 0);
}
sta350->gpiod_power_down = devm_gpiod_get(dev, "power-down",
GPIOD_OUT_LOW);
if (IS_ERR(sta350->gpiod_power_down))
return PTR_ERR(sta350->gpiod_power_down);
/* regulators */
for (i = 0; i < ARRAY_SIZE(sta350->supplies); i++)

13
sound/soc/codecs/tas2552.c
View File

@ -485,16 +485,9 @@ static int tas2552_probe(struct i2c_client *client,
if (data == NULL)
return -ENOMEM;
data->enable_gpio = devm_gpiod_get(dev, "enable");
if (IS_ERR(data->enable_gpio)) {
ret = PTR_ERR(data->enable_gpio);
if (ret != -ENOENT && ret != -ENOSYS)
return ret;
data->enable_gpio = NULL;
} else {
gpiod_direction_output(data->enable_gpio, 0);
}
data->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
if (IS_ERR(data->enable_gpio))
return PTR_ERR(data->enable_gpio);
data->tas2552_client = client;
data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config);

18
sound/soc/davinci/Kconfig
View File

@ -1,14 +1,16 @@
config SND_DAVINCI_SOC
tristate "SoC Audio for TI DAVINCI"
tristate
depends on ARCH_DAVINCI
select SND_EDMA_SOC
config SND_EDMA_SOC
tristate "SoC Audio for Texas Instruments chips using eDMA (AM33XX/43XX)"
depends on SOC_AM33XX || SOC_AM43XX
tristate "SoC Audio for Texas Instruments chips using eDMA"
depends on SOC_AM33XX || SOC_AM43XX || ARCH_DAVINCI
select SND_SOC_GENERIC_DMAENGINE_PCM
help
Say Y or M here if you want audio support for TI SoC which uses eDMA.
The following line of SoCs are supported by this platform driver:
- daVinci devices
- AM335x
- AM437x/AM438x
@ -17,7 +19,7 @@ config SND_DAVINCI_SOC_I2S
config SND_DAVINCI_SOC_MCASP
tristate "Multichannel Audio Serial Port (McASP) support"
depends on SND_DAVINCI_SOC || SND_OMAP_SOC || SND_EDMA_SOC
depends on SND_OMAP_SOC || SND_EDMA_SOC
help
Say Y or M here if you want to have support for McASP IP found in
various Texas Instruments SoCs like:
@ -45,7 +47,7 @@ config SND_AM33XX_SOC_EVM
config SND_DAVINCI_SOC_EVM
tristate "SoC Audio support for DaVinci DM6446, DM355 or DM365 EVM"
depends on SND_DAVINCI_SOC && I2C
depends on SND_EDMA_SOC && I2C
depends on MACH_DAVINCI_EVM || MACH_DAVINCI_DM355_EVM || MACH_DAVINCI_DM365_EVM
select SND_DAVINCI_SOC_GENERIC_EVM
help
@ -73,7 +75,7 @@ endchoice
config SND_DM6467_SOC_EVM
tristate "SoC Audio support for DaVinci DM6467 EVM"
depends on SND_DAVINCI_SOC && MACH_DAVINCI_DM6467_EVM && I2C
depends on SND_EDMA_SOC && MACH_DAVINCI_DM6467_EVM && I2C
select SND_DAVINCI_SOC_GENERIC_EVM
select SND_SOC_SPDIF
@ -82,7 +84,7 @@ config SND_DM6467_SOC_EVM
config SND_DA830_SOC_EVM
tristate "SoC Audio support for DA830/OMAP-L137 EVM"
depends on SND_DAVINCI_SOC && MACH_DAVINCI_DA830_EVM && I2C
depends on SND_EDMA_SOC && MACH_DAVINCI_DA830_EVM && I2C
select SND_DAVINCI_SOC_GENERIC_EVM
help
@ -91,7 +93,7 @@ config SND_DA830_SOC_EVM
config SND_DA850_SOC_EVM
tristate "SoC Audio support for DA850/OMAP-L138 EVM"
depends on SND_DAVINCI_SOC && MACH_DAVINCI_DA850_EVM && I2C
depends on SND_EDMA_SOC && MACH_DAVINCI_DA850_EVM && I2C
select SND_DAVINCI_SOC_GENERIC_EVM
help
Say Y if you want to add support for SoC audio on TI

2
sound/soc/davinci/Makefile
View File

@ -1,11 +1,9 @@
# DAVINCI Platform Support
snd-soc-davinci-objs := davinci-pcm.o
snd-soc-edma-objs := edma-pcm.o
snd-soc-davinci-i2s-objs := davinci-i2s.o
snd-soc-davinci-mcasp-objs:= davinci-mcasp.o
snd-soc-davinci-vcif-objs:= davinci-vcif.o
obj-$(CONFIG_SND_DAVINCI_SOC) += snd-soc-davinci.o
obj-$(CONFIG_SND_EDMA_SOC) += snd-soc-edma.o
obj-$(CONFIG_SND_DAVINCI_SOC_I2S) += snd-soc-davinci-i2s.o
obj-$(CONFIG_SND_DAVINCI_SOC_MCASP) += snd-soc-davinci-mcasp.o

67
sound/soc/davinci/davinci-i2s.c
View File

@ -23,8 +23,9 @@
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include "davinci-pcm.h"
#include "edma-pcm.h"
#include "davinci-i2s.h"
@ -122,7 +123,8 @@ static const unsigned char double_fmt[SNDRV_PCM_FORMAT_S32_LE + 1] = {
struct davinci_mcbsp_dev {
struct device *dev;
struct davinci_pcm_dma_params dma_params[2];
struct snd_dmaengine_dai_dma_data dma_data[2];
int dma_request[2];
void __iomem *base;
#define MOD_DSP_A 0
#define MOD_DSP_B 1
@ -419,8 +421,6 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
struct davinci_pcm_dma_params *dma_params =
&dev->dma_params[substream->stream];
struct snd_interval *i = NULL;
int mcbsp_word_length, master;
unsigned int rcr, xcr, srgr, clk_div, freq, framesize;
@ -532,8 +532,6 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
}
dma_params->acnt = dma_params->data_type = data_type[fmt];
dma_params->fifo_level = 0;
mcbsp_word_length = asp_word_length[fmt];
switch (master) {
@ -600,15 +598,6 @@ static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
static int davinci_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
snd_soc_dai_set_dma_data(dai, substream, dev->dma_params);
return 0;
}
static void davinci_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@ -620,7 +609,6 @@ static void davinci_i2s_shutdown(struct snd_pcm_substream *substream,
#define DAVINCI_I2S_RATES SNDRV_PCM_RATE_8000_96000
static const struct snd_soc_dai_ops davinci_i2s_dai_ops = {
.startup = davinci_i2s_startup,
.shutdown = davinci_i2s_shutdown,
.prepare = davinci_i2s_prepare,
.trigger = davinci_i2s_trigger,
@ -630,7 +618,18 @@ static const struct snd_soc_dai_ops davinci_i2s_dai_ops = {
};
static int davinci_i2s_dai_probe(struct snd_soc_dai *dai)
{
struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
dai->playback_dma_data = &dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dai->capture_dma_data = &dev->dma_data[SNDRV_PCM_STREAM_CAPTURE];
return 0;
}
static struct snd_soc_dai_driver davinci_i2s_dai = {
.probe = davinci_i2s_dai_probe,
.playback = {
.channels_min = 2,
.channels_max = 2,
@ -651,11 +650,9 @@ static const struct snd_soc_component_driver davinci_i2s_component = {
static int davinci_i2s_probe(struct platform_device *pdev)
{
struct snd_platform_data *pdata = pdev->dev.platform_data;
struct davinci_mcbsp_dev *dev;
struct resource *mem, *ioarea, *res;
enum dma_event_q asp_chan_q = EVENTQ_0;
enum dma_event_q ram_chan_q = EVENTQ_1;
int *dma;
int ret;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@ -676,22 +673,6 @@ static int davinci_i2s_probe(struct platform_device *pdev)
GFP_KERNEL);
if (!dev)
return -ENOMEM;
if (pdata) {
dev->enable_channel_combine = pdata->enable_channel_combine;
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].sram_size =
pdata->sram_size_playback;
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].sram_size =
pdata->sram_size_capture;
dev->clk_input_pin = pdata->clk_input_pin;
dev->i2s_accurate_sck = pdata->i2s_accurate_sck;
asp_chan_q = pdata->asp_chan_q;
ram_chan_q = pdata->ram_chan_q;
}
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].asp_chan_q = asp_chan_q;
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].ram_chan_q = ram_chan_q;
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].asp_chan_q = asp_chan_q;
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].ram_chan_q = ram_chan_q;
dev->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk))
@ -705,10 +686,10 @@ static int davinci_i2s_probe(struct platform_device *pdev)
goto err_release_clk;
}
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].dma_addr =
dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].addr =
(dma_addr_t)(mem->start + DAVINCI_MCBSP_DXR_REG);
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].dma_addr =
dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].addr =
(dma_addr_t)(mem->start + DAVINCI_MCBSP_DRR_REG);
/* first TX, then RX */
@ -718,7 +699,9 @@ static int davinci_i2s_probe(struct platform_device *pdev)
ret = -ENXIO;
goto err_release_clk;
}
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].channel = res->start;
dma = &dev->dma_request[SNDRV_PCM_STREAM_PLAYBACK];
*dma = res->start;
dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].filter_data = dma;
res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!res) {
@ -726,9 +709,11 @@ static int davinci_i2s_probe(struct platform_device *pdev)
ret = -ENXIO;
goto err_release_clk;
}
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel = res->start;
dev->dev = &pdev->dev;
dma = &dev->dma_request[SNDRV_PCM_STREAM_CAPTURE];
*dma = res->start;
dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].filter_data = dma;
dev->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, dev);
ret = snd_soc_register_component(&pdev->dev, &davinci_i2s_component,
@ -736,7 +721,7 @@ static int davinci_i2s_probe(struct platform_device *pdev)
if (ret != 0)
goto err_release_clk;
ret = davinci_soc_platform_register(&pdev->dev);
ret = edma_pcm_platform_register(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
goto err_unregister_component;

99
sound/soc/davinci/davinci-mcasp.c
View File

@ -26,6 +26,7 @@
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_device.h>
#include <linux/platform_data/davinci_asp.h>
#include <sound/asoundef.h>
#include <sound/core.h>
@ -36,7 +37,6 @@
#include <sound/dmaengine_pcm.h>
#include <sound/omap-pcm.h>
#include "davinci-pcm.h"
#include "edma-pcm.h"
#include "davinci-mcasp.h"
@ -65,7 +65,6 @@ struct davinci_mcasp_context {
};
struct davinci_mcasp {
struct davinci_pcm_dma_params dma_params[2];
struct snd_dmaengine_dai_dma_data dma_data[2];
void __iomem *base;
u32 fifo_base;
@ -82,6 +81,7 @@ struct davinci_mcasp {
u16 bclk_lrclk_ratio;
int streams;
u32 irq_request[2];
int dma_request[2];
int sysclk_freq;
bool bclk_master;
@ -441,6 +441,18 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
mcasp_set_bits(mcasp, DAVINCI_MCASP_PDIR_REG, AFSX | AFSR);
mcasp->bclk_master = 1;
break;
case SND_SOC_DAIFMT_CBS_CFM:
/* codec is clock slave and frame master */
mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE);
mcasp_clr_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG, AFSXE);
mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE);
mcasp_clr_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG, AFSRE);
mcasp_set_bits(mcasp, DAVINCI_MCASP_PDIR_REG, ACLKX | ACLKR);
mcasp_clr_bits(mcasp, DAVINCI_MCASP_PDIR_REG, AFSX | AFSR);
mcasp->bclk_master = 1;
break;
case SND_SOC_DAIFMT_CBM_CFS:
/* codec is clock master and frame slave */
mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE);
@ -631,7 +643,6 @@ static int davinci_config_channel_size(struct davinci_mcasp *mcasp,
static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream,
int period_words, int channels)
{
struct davinci_pcm_dma_params *dma_params = &mcasp->dma_params[stream];
struct snd_dmaengine_dai_dma_data *dma_data = &mcasp->dma_data[stream];
int i;
u8 tx_ser = 0;
@ -699,10 +710,8 @@ static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream,
* For example if three serializers are enabled the DMA
* need to transfer three words per DMA request.
*/
dma_params->fifo_level = active_serializers;
dma_data->maxburst = active_serializers;
} else {
dma_params->fifo_level = 0;
dma_data->maxburst = 0;
}
return 0;
@ -734,7 +743,6 @@ static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream,
/* Configure the burst size for platform drivers */
if (numevt == 1)
numevt = 0;
dma_params->fifo_level = numevt;
dma_data->maxburst = numevt;
return 0;
@ -860,8 +868,6 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai);
struct davinci_pcm_dma_params *dma_params =
&mcasp->dma_params[substream->stream];
int word_length;
int channels = params_channels(params);
int period_size = params_period_size(params);
@ -902,31 +908,26 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_U8:
case SNDRV_PCM_FORMAT_S8:
dma_params->data_type = 1;
word_length = 8;
break;
case SNDRV_PCM_FORMAT_U16_LE:
case SNDRV_PCM_FORMAT_S16_LE:
dma_params->data_type = 2;
word_length = 16;
break;
case SNDRV_PCM_FORMAT_U24_3LE:
case SNDRV_PCM_FORMAT_S24_3LE:
dma_params->data_type = 3;
word_length = 24;
break;
case SNDRV_PCM_FORMAT_U24_LE:
case SNDRV_PCM_FORMAT_S24_LE:
dma_params->data_type = 4;
word_length = 24;
break;
case SNDRV_PCM_FORMAT_U32_LE:
case SNDRV_PCM_FORMAT_S32_LE:
dma_params->data_type = 4;
word_length = 32;
break;
@ -935,11 +936,6 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
if (mcasp->version == MCASP_VERSION_2 && !dma_params->fifo_level)
dma_params->acnt = 4;
else
dma_params->acnt = dma_params->data_type;
davinci_config_channel_size(mcasp, word_length);
if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE)
@ -1043,17 +1039,8 @@ static int davinci_mcasp_dai_probe(struct snd_soc_dai *dai)
{
struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai);
if (mcasp->version >= MCASP_VERSION_3) {
/* Using dmaengine PCM */
dai->playback_dma_data =
&mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dai->capture_dma_data =
&mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE];
} else {
/* Using davinci-pcm */
dai->playback_dma_data = mcasp->dma_params;
dai->capture_dma_data = mcasp->dma_params;
}
dai->playback_dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dai->capture_dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE];
return 0;
}
@ -1172,28 +1159,24 @@ static const struct snd_soc_component_driver davinci_mcasp_component = {
static struct davinci_mcasp_pdata dm646x_mcasp_pdata = {
.tx_dma_offset = 0x400,
.rx_dma_offset = 0x400,
.asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_1,
};
static struct davinci_mcasp_pdata da830_mcasp_pdata = {
.tx_dma_offset = 0x2000,
.rx_dma_offset = 0x2000,
.asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_2,
};
static struct davinci_mcasp_pdata am33xx_mcasp_pdata = {
.tx_dma_offset = 0,
.rx_dma_offset = 0,
.asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_3,
};
static struct davinci_mcasp_pdata dra7_mcasp_pdata = {
.tx_dma_offset = 0x200,
.rx_dma_offset = 0x284,
.asp_chan_q = EVENTQ_0,
.version = MCASP_VERSION_4,
};
@ -1370,12 +1353,12 @@ nodata:
static int davinci_mcasp_probe(struct platform_device *pdev)
{
struct davinci_pcm_dma_params *dma_params;
struct snd_dmaengine_dai_dma_data *dma_data;
struct resource *mem, *ioarea, *res, *dat;
struct davinci_mcasp_pdata *pdata;
struct davinci_mcasp *mcasp;
char *irq_name;
int *dma;
int irq;
int ret;
@ -1509,59 +1492,45 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
if (dat)
mcasp->dat_port = true;
dma_params = &mcasp->dma_params[SNDRV_PCM_STREAM_PLAYBACK];
dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dma_params->asp_chan_q = pdata->asp_chan_q;
dma_params->ram_chan_q = pdata->ram_chan_q;
dma_params->sram_pool = pdata->sram_pool;
dma_params->sram_size = pdata->sram_size_playback;
if (dat)
dma_params->dma_addr = dat->start;
dma_data->addr = dat->start;
else
dma_params->dma_addr = mem->start + pdata->tx_dma_offset;
/* Unconditional dmaengine stuff */
dma_data->addr = dma_params->dma_addr;
dma_data->addr = mem->start + pdata->tx_dma_offset;
dma = &mcasp->dma_request[SNDRV_PCM_STREAM_PLAYBACK];
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (res)
dma_params->channel = res->start;
*dma = res->start;
else
dma_params->channel = pdata->tx_dma_channel;
*dma = pdata->tx_dma_channel;
/* dmaengine filter data for DT and non-DT boot */
if (pdev->dev.of_node)
dma_data->filter_data = "tx";
else
dma_data->filter_data = &dma_params->channel;
dma_data->filter_data = dma;
/* RX is not valid in DIT mode */
if (mcasp->op_mode != DAVINCI_MCASP_DIT_MODE) {
dma_params = &mcasp->dma_params[SNDRV_PCM_STREAM_CAPTURE];
dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE];
dma_params->asp_chan_q = pdata->asp_chan_q;
dma_params->ram_chan_q = pdata->ram_chan_q;
dma_params->sram_pool = pdata->sram_pool;
dma_params->sram_size = pdata->sram_size_capture;
if (dat)
dma_params->dma_addr = dat->start;
dma_data->addr = dat->start;
else
dma_params->dma_addr = mem->start + pdata->rx_dma_offset;
/* Unconditional dmaengine stuff */
dma_data->addr = dma_params->dma_addr;
dma_data->addr = mem->start + pdata->rx_dma_offset;
dma = &mcasp->dma_request[SNDRV_PCM_STREAM_CAPTURE];
res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (res)
dma_params->channel = res->start;
*dma = res->start;
else
dma_params->channel = pdata->rx_dma_channel;
*dma = pdata->rx_dma_channel;
/* dmaengine filter data for DT and non-DT boot */
if (pdev->dev.of_node)
dma_data->filter_data = "rx";
else
dma_data->filter_data = &dma_params->channel;
dma_data->filter_data = dma;
}
if (mcasp->version < MCASP_VERSION_3) {
@ -1584,17 +1553,11 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
goto err;
switch (mcasp->version) {
#if IS_BUILTIN(CONFIG_SND_DAVINCI_SOC) || \
(IS_MODULE(CONFIG_SND_DAVINCI_SOC_MCASP) && \
IS_MODULE(CONFIG_SND_DAVINCI_SOC))
case MCASP_VERSION_1:
case MCASP_VERSION_2:
ret = davinci_soc_platform_register(&pdev->dev);
break;
#endif
#if IS_BUILTIN(CONFIG_SND_EDMA_SOC) || \
(IS_MODULE(CONFIG_SND_DAVINCI_SOC_MCASP) && \
IS_MODULE(CONFIG_SND_EDMA_SOC))
case MCASP_VERSION_1:
case MCASP_VERSION_2:
case MCASP_VERSION_3:
ret = edma_pcm_platform_register(&pdev->dev);
break;

861
sound/soc/davinci/davinci-pcm.c
View File

@ -1,861 +0,0 @@
/*
* ALSA PCM interface for the TI DAVINCI processor
*
* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
* added SRAM ping/pong (C) 2008 Troy Kisky <troy.kisky@boundarydevices.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/genalloc.h>
#include <linux/platform_data/edma.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <asm/dma.h>
#include "davinci-pcm.h"
#ifdef DEBUG
static void print_buf_info(int slot, char *name)
{
struct edmacc_param p;
if (slot < 0)
return;
edma_read_slot(slot, &p);
printk(KERN_DEBUG "%s: 0x%x, opt=%x, src=%x, a_b_cnt=%x dst=%x\n",
name, slot, p.opt, p.src, p.a_b_cnt, p.dst);
printk(KERN_DEBUG " src_dst_bidx=%x link_bcntrld=%x src_dst_cidx=%x ccnt=%x\n",
p.src_dst_bidx, p.link_bcntrld, p.src_dst_cidx, p.ccnt);
}
#else
static void print_buf_info(int slot, char *name)
{
}
#endif
static struct snd_pcm_hardware pcm_hardware_playback = {
.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME|
SNDRV_PCM_INFO_BATCH),
.buffer_bytes_max = 128 * 1024,
.period_bytes_min = 32,
.period_bytes_max = 8 * 1024,
.periods_min = 16,
.periods_max = 255,
.fifo_size = 0,
};
static struct snd_pcm_hardware pcm_hardware_capture = {
.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_BATCH),
.buffer_bytes_max = 128 * 1024,
.period_bytes_min = 32,
.period_bytes_max = 8 * 1024,
.periods_min = 16,
.periods_max = 255,
.fifo_size = 0,
};
/*
* How ping/pong works....
*
* Playback:
* ram_params - copys 2*ping_size from start of SDRAM to iram,
* links to ram_link2
* ram_link2 - copys rest of SDRAM to iram in ping_size units,
* links to ram_link
* ram_link - copys entire SDRAM to iram in ping_size uints,
* links to self
*
* asp_params - same as asp_link[0]
* asp_link[0] - copys from lower half of iram to asp port
* links to asp_link[1], triggers iram copy event on completion
* asp_link[1] - copys from upper half of iram to asp port
* links to asp_link[0], triggers iram copy event on completion
* triggers interrupt only needed to let upper SOC levels update position
* in stream on completion
*
* When playback is started:
* ram_params started
* asp_params started
*
* Capture:
* ram_params - same as ram_link,
* links to ram_link
* ram_link - same as playback
* links to self
*
* asp_params - same as playback
* asp_link[0] - same as playback
* asp_link[1] - same as playback
*
* When capture is started:
* asp_params started
*/
struct davinci_runtime_data {
spinlock_t lock;
int period; /* current DMA period */
int asp_channel; /* Master DMA channel */
int asp_link[2]; /* asp parameter link channel, ping/pong */
struct davinci_pcm_dma_params *params; /* DMA params */
int ram_channel;
int ram_link;
int ram_link2;
struct edmacc_param asp_params;
struct edmacc_param ram_params;
};
static void davinci_pcm_period_elapsed(struct snd_pcm_substream *substream)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
prtd->period++;
if (unlikely(prtd->period >= runtime->periods))
prtd->period = 0;
}
static void davinci_pcm_period_reset(struct snd_pcm_substream *substream)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
prtd->period = 0;
}
/*
* Not used with ping/pong
*/
static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int period_size;
unsigned int dma_offset;
dma_addr_t dma_pos;
dma_addr_t src, dst;
unsigned short src_bidx, dst_bidx;
unsigned short src_cidx, dst_cidx;
unsigned int data_type;
unsigned short acnt;
unsigned int count;
unsigned int fifo_level;
period_size = snd_pcm_lib_period_bytes(substream);
dma_offset = prtd->period * period_size;
dma_pos = runtime->dma_addr + dma_offset;
fifo_level = prtd->params->fifo_level;
pr_debug("davinci_pcm: audio_set_dma_params_play channel = %d "
"dma_ptr = %x period_size=%x\n", prtd->asp_link[0], dma_pos,
period_size);
data_type = prtd->params->data_type;
count = period_size / data_type;
if (fifo_level)
count /= fifo_level;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
src = dma_pos;
dst = prtd->params->dma_addr;
src_bidx = data_type;
dst_bidx = 4;
src_cidx = data_type * fifo_level;
dst_cidx = 0;
} else {
src = prtd->params->dma_addr;
dst = dma_pos;
src_bidx = 0;
dst_bidx = data_type;
src_cidx = 0;
dst_cidx = data_type * fifo_level;
}
acnt = prtd->params->acnt;
edma_set_src(prtd->asp_link[0], src, INCR, W8BIT);
edma_set_dest(prtd->asp_link[0], dst, INCR, W8BIT);
edma_set_src_index(prtd->asp_link[0], src_bidx, src_cidx);
edma_set_dest_index(prtd->asp_link[0], dst_bidx, dst_cidx);
if (!fifo_level)
edma_set_transfer_params(prtd->asp_link[0], acnt, count, 1, 0,
ASYNC);
else
edma_set_transfer_params(prtd->asp_link[0], acnt,
fifo_level,
count, fifo_level,
ABSYNC);
}
static void davinci_pcm_dma_irq(unsigned link, u16 ch_status, void *data)
{
struct snd_pcm_substream *substream = data;
struct davinci_runtime_data *prtd = substream->runtime->private_data;
print_buf_info(prtd->ram_channel, "i ram_channel");
pr_debug("davinci_pcm: link=%d, status=0x%x\n", link, ch_status);
if (unlikely(ch_status != EDMA_DMA_COMPLETE))
return;
if (snd_pcm_running(substream)) {
spin_lock(&prtd->lock);
if (prtd->ram_channel < 0) {
/* No ping/pong must fix up link dma data*/
davinci_pcm_enqueue_dma(substream);
}
davinci_pcm_period_elapsed(substream);
spin_unlock(&prtd->lock);
snd_pcm_period_elapsed(substream);
}
}
#ifdef CONFIG_GENERIC_ALLOCATOR
static int allocate_sram(struct snd_pcm_substream *substream,
struct gen_pool *sram_pool, unsigned size,
struct snd_pcm_hardware *ppcm)
{
struct snd_dma_buffer *buf = &substream->dma_buffer;
struct snd_dma_buffer *iram_dma = NULL;
dma_addr_t iram_phys = 0;
void *iram_virt = NULL;
if (buf->private_data || !size)
return 0;
ppcm->period_bytes_max = size;
iram_virt = gen_pool_dma_alloc(sram_pool, size, &iram_phys);
if (!iram_virt)
goto exit1;
iram_dma = kzalloc(sizeof(*iram_dma), GFP_KERNEL);
if (!iram_dma)
goto exit2;
iram_dma->area = iram_virt;
iram_dma->addr = iram_phys;
memset(iram_dma->area, 0, size);
iram_dma->bytes = size;
buf->private_data = iram_dma;
return 0;
exit2:
if (iram_virt)
gen_pool_free(sram_pool, (unsigned)iram_virt, size);
exit1:
return -ENOMEM;
}
static void davinci_free_sram(struct snd_pcm_substream *substream,
struct snd_dma_buffer *iram_dma)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
struct gen_pool *sram_pool = prtd->params->sram_pool;
gen_pool_free(sram_pool, (unsigned) iram_dma->area, iram_dma->bytes);
}
#else
static int allocate_sram(struct snd_pcm_substream *substream,
struct gen_pool *sram_pool, unsigned size,
struct snd_pcm_hardware *ppcm)
{
return 0;
}
static void davinci_free_sram(struct snd_pcm_substream *substream,
struct snd_dma_buffer *iram_dma)
{
}
#endif
/*
* Only used with ping/pong.
* This is called after runtime->dma_addr, period_bytes and data_type are valid
*/
static int ping_pong_dma_setup(struct snd_pcm_substream *substream)
{
unsigned short ram_src_cidx, ram_dst_cidx;
struct snd_pcm_runtime *runtime = substream->runtime;
struct davinci_runtime_data *prtd = runtime->private_data;
struct snd_dma_buffer *iram_dma =
(struct snd_dma_buffer *)substream->dma_buffer.private_data;
struct davinci_pcm_dma_params *params = prtd->params;
unsigned int data_type = params->data_type;
unsigned int acnt = params->acnt;
/* divide by 2 for ping/pong */
unsigned int ping_size = snd_pcm_lib_period_bytes(substream) >> 1;
unsigned int fifo_level = prtd->params->fifo_level;
unsigned int count;
if ((data_type == 0) || (data_type > 4)) {
printk(KERN_ERR "%s: data_type=%i\n", __func__, data_type);
return -EINVAL;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
dma_addr_t asp_src_pong = iram_dma->addr + ping_size;
ram_src_cidx = ping_size;
ram_dst_cidx = -ping_size;
edma_set_src(prtd->asp_link[1], asp_src_pong, INCR, W8BIT);
edma_set_src_index(prtd->asp_link[0], data_type,
data_type * fifo_level);
edma_set_src_index(prtd->asp_link[1], data_type,
data_type * fifo_level);
edma_set_src(prtd->ram_link, runtime->dma_addr, INCR, W32BIT);
} else {
dma_addr_t asp_dst_pong = iram_dma->addr + ping_size;
ram_src_cidx = -ping_size;
ram_dst_cidx = ping_size;
edma_set_dest(prtd->asp_link[1], asp_dst_pong, INCR, W8BIT);
edma_set_dest_index(prtd->asp_link[0], data_type,
data_type * fifo_level);
edma_set_dest_index(prtd->asp_link[1], data_type,
data_type * fifo_level);
edma_set_dest(prtd->ram_link, runtime->dma_addr, INCR, W32BIT);
}
if (!fifo_level) {
count = ping_size / data_type;
edma_set_transfer_params(prtd->asp_link[0], acnt, count,
1, 0, ASYNC);
edma_set_transfer_params(prtd->asp_link[1], acnt, count,
1, 0, ASYNC);
} else {
count = ping_size / (data_type * fifo_level);
edma_set_transfer_params(prtd->asp_link[0], acnt, fifo_level,
count, fifo_level, ABSYNC);
edma_set_transfer_params(prtd->asp_link[1], acnt, fifo_level,
count, fifo_level, ABSYNC);
}
edma_set_src_index(prtd->ram_link, ping_size, ram_src_cidx);
edma_set_dest_index(prtd->ram_link, ping_size, ram_dst_cidx);
edma_set_transfer_params(prtd->ram_link, ping_size, 2,
runtime->periods, 2, ASYNC);
/* init master params */
edma_read_slot(prtd->asp_link[0], &prtd->asp_params);
edma_read_slot(prtd->ram_link, &prtd->ram_params);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
struct edmacc_param p_ram;
/* Copy entire iram buffer before playback started */
prtd->ram_params.a_b_cnt = (1 << 16) | (ping_size << 1);
/* 0 dst_bidx */
prtd->ram_params.src_dst_bidx = (ping_size << 1);
/* 0 dst_cidx */
prtd->ram_params.src_dst_cidx = (ping_size << 1);
prtd->ram_params.ccnt = 1;
/* Skip 1st period */
edma_read_slot(prtd->ram_link, &p_ram);
p_ram.src += (ping_size << 1);
p_ram.ccnt -= 1;
edma_write_slot(prtd->ram_link2, &p_ram);
/*
* When 1st started, ram -> iram dma channel will fill the
* entire iram. Then, whenever a ping/pong asp buffer finishes,
* 1/2 iram will be filled.
*/
prtd->ram_params.link_bcntrld =
EDMA_CHAN_SLOT(prtd->ram_link2) << 5;
}
return 0;
}
/* 1 asp tx or rx channel using 2 parameter channels
* 1 ram to/from iram channel using 1 parameter channel
*
* Playback
* ram copy channel kicks off first,
* 1st ram copy of entire iram buffer completion kicks off asp channel
* asp tcc always kicks off ram copy of 1/2 iram buffer
*
* Record
* asp channel starts, tcc kicks off ram copy
*/
static int request_ping_pong(struct snd_pcm_substream *substream,
struct davinci_runtime_data *prtd,
struct snd_dma_buffer *iram_dma)
{
dma_addr_t asp_src_ping;
dma_addr_t asp_dst_ping;
int ret;
struct davinci_pcm_dma_params *params = prtd->params;
/* Request ram master channel */
ret = prtd->ram_channel = edma_alloc_channel(EDMA_CHANNEL_ANY,
davinci_pcm_dma_irq, substream,
prtd->params->ram_chan_q);
if (ret < 0)
goto exit1;
/* Request ram link channel */
ret = prtd->ram_link = edma_alloc_slot(
EDMA_CTLR(prtd->ram_channel), EDMA_SLOT_ANY);
if (ret < 0)
goto exit2;
ret = prtd->asp_link[1] = edma_alloc_slot(
EDMA_CTLR(prtd->asp_channel), EDMA_SLOT_ANY);
if (ret < 0)
goto exit3;
prtd->ram_link2 = -1;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ret = prtd->ram_link2 = edma_alloc_slot(
EDMA_CTLR(prtd->ram_channel), EDMA_SLOT_ANY);
if (ret < 0)
goto exit4;
}
/* circle ping-pong buffers */
edma_link(prtd->asp_link[0], prtd->asp_link[1]);
edma_link(prtd->asp_link[1], prtd->asp_link[0]);
/* circle ram buffers */
edma_link(prtd->ram_link, prtd->ram_link);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
asp_src_ping = iram_dma->addr;
asp_dst_ping = params->dma_addr; /* fifo */
} else {
asp_src_ping = params->dma_addr; /* fifo */
asp_dst_ping = iram_dma->addr;
}
/* ping */
edma_set_src(prtd->asp_link[0], asp_src_ping, INCR, W16BIT);
edma_set_dest(prtd->asp_link[0], asp_dst_ping, INCR, W16BIT);
edma_set_src_index(prtd->asp_link[0], 0, 0);
edma_set_dest_index(prtd->asp_link[0], 0, 0);
edma_read_slot(prtd->asp_link[0], &prtd->asp_params);
prtd->asp_params.opt &= ~(TCCMODE | EDMA_TCC(0x3f) | TCINTEN);
prtd->asp_params.opt |= TCCHEN |
EDMA_TCC(prtd->ram_channel & 0x3f);
edma_write_slot(prtd->asp_link[0], &prtd->asp_params);
/* pong */
edma_set_src(prtd->asp_link[1], asp_src_ping, INCR, W16BIT);
edma_set_dest(prtd->asp_link[1], asp_dst_ping, INCR, W16BIT);
edma_set_src_index(prtd->asp_link[1], 0, 0);
edma_set_dest_index(prtd->asp_link[1], 0, 0);
edma_read_slot(prtd->asp_link[1], &prtd->asp_params);
prtd->asp_params.opt &= ~(TCCMODE | EDMA_TCC(0x3f));
/* interrupt after every pong completion */
prtd->asp_params.opt |= TCINTEN | TCCHEN |
EDMA_TCC(prtd->ram_channel & 0x3f);
edma_write_slot(prtd->asp_link[1], &prtd->asp_params);
/* ram */
edma_set_src(prtd->ram_link, iram_dma->addr, INCR, W32BIT);
edma_set_dest(prtd->ram_link, iram_dma->addr, INCR, W32BIT);
pr_debug("%s: audio dma channels/slots in use for ram:%u %u %u,"
"for asp:%u %u %u\n", __func__,
prtd->ram_channel, prtd->ram_link, prtd->ram_link2,
prtd->asp_channel, prtd->asp_link[0],
prtd->asp_link[1]);
return 0;
exit4:
edma_free_channel(prtd->asp_link[1]);
prtd->asp_link[1] = -1;
exit3:
edma_free_channel(prtd->ram_link);
prtd->ram_link = -1;
exit2:
edma_free_channel(prtd->ram_channel);
prtd->ram_channel = -1;
exit1:
return ret;
}
static int davinci_pcm_dma_request(struct snd_pcm_substream *substream)
{
struct snd_dma_buffer *iram_dma;
struct davinci_runtime_data *prtd = substream->runtime->private_data;
struct davinci_pcm_dma_params *params = prtd->params;
int ret;
if (!params)
return -ENODEV;
/* Request asp master DMA channel */
ret = prtd->asp_channel = edma_alloc_channel(params->channel,
davinci_pcm_dma_irq, substream,
prtd->params->asp_chan_q);
if (ret < 0)
goto exit1;
/* Request asp link channels */
ret = prtd->asp_link[0] = edma_alloc_slot(
EDMA_CTLR(prtd->asp_channel), EDMA_SLOT_ANY);
if (ret < 0)
goto exit2;
iram_dma = (struct snd_dma_buffer *)substream->dma_buffer.private_data;
if (iram_dma) {
if (request_ping_pong(substream, prtd, iram_dma) == 0)
return 0;
printk(KERN_WARNING "%s: dma channel allocation failed,"
"not using sram\n", __func__);
}
/* Issue transfer completion IRQ when the channel completes a
* transfer, then always reload from the same slot (by a kind
* of loopback link). The completion IRQ handler will update
* the reload slot with a new buffer.
*
* REVISIT save p_ram here after setting up everything except
* the buffer and its length (ccnt) ... use it as a template
* so davinci_pcm_enqueue_dma() takes less time in IRQ.
*/
edma_read_slot(prtd->asp_link[0], &prtd->asp_params);
prtd->asp_params.opt |= TCINTEN |
EDMA_TCC(EDMA_CHAN_SLOT(prtd->asp_channel));
prtd->asp_params.link_bcntrld = EDMA_CHAN_SLOT(prtd->asp_link[0]) << 5;
edma_write_slot(prtd->asp_link[0], &prtd->asp_params);
return 0;
exit2:
edma_free_channel(prtd->asp_channel);
prtd->asp_channel = -1;
exit1:
return ret;
}
static int davinci_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
int ret = 0;
spin_lock(&prtd->lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
edma_start(prtd->asp_channel);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
prtd->ram_channel >= 0) {
/* copy 1st iram buffer */
edma_start(prtd->ram_channel);
}
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
edma_resume(prtd->asp_channel);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
edma_pause(prtd->asp_channel);
break;
default:
ret = -EINVAL;
break;
}
spin_unlock(&prtd->lock);
return ret;
}
static int davinci_pcm_prepare(struct snd_pcm_substream *substream)
{
struct davinci_runtime_data *prtd = substream->runtime->private_data;
davinci_pcm_period_reset(substream);
if (prtd->ram_channel >= 0) {
int ret = ping_pong_dma_setup(substream);
if (ret < 0)
return ret;
edma_write_slot(prtd->ram_channel, &prtd->ram_params);
edma_write_slot(prtd->asp_channel, &prtd->asp_params);
print_buf_info(prtd->ram_channel, "ram_channel");
print_buf_info(prtd->ram_link, "ram_link");
print_buf_info(prtd->ram_link2, "ram_link2");
print_buf_info(prtd->asp_channel, "asp_channel");
print_buf_info(prtd->asp_link[0], "asp_link[0]");
print_buf_info(prtd->asp_link[1], "asp_link[1]");
/*
* There is a phase offset of 2 periods between the position
* used by dma setup and the position reported in the pointer
* function.
*
* The phase offset, when not using ping-pong buffers, is due to
* the two consecutive calls to davinci_pcm_enqueue_dma() below.
*
* Whereas here, with ping-pong buffers, the phase is due to
* there being an entire buffer transfer complete before the
* first dma completion event triggers davinci_pcm_dma_irq().
*/
davinci_pcm_period_elapsed(substream);
davinci_pcm_period_elapsed(substream);
return 0;
}
davinci_pcm_enqueue_dma(substream);
davinci_pcm_period_elapsed(substream);
/* Copy self-linked parameter RAM entry into master channel */
edma_read_slot(prtd->asp_link[0], &prtd->asp_params);
edma_write_slot(prtd->asp_channel, &prtd->asp_params);
davinci_pcm_enqueue_dma(substream);
davinci_pcm_period_elapsed(substream);
return 0;
}
static snd_pcm_uframes_t
davinci_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct davinci_runtime_data *prtd = runtime->private_data;
unsigned int offset;
int asp_count;
unsigned int period_size = snd_pcm_lib_period_bytes(substream);
/*
* There is a phase offset of 2 periods between the position used by dma
* setup and the position reported in the pointer function. Either +2 in
* the dma setup or -2 here in the pointer function (with wrapping,
* both) accounts for this offset -- choose the latter since it makes
* the first-time setup clearer.
*/
spin_lock(&prtd->lock);
asp_count = prtd->period - 2;
spin_unlock(&prtd->lock);
if (asp_count < 0)
asp_count += runtime->periods;
asp_count *= period_size;
offset = bytes_to_frames(runtime, asp_count);
if (offset >= runtime->buffer_size)
offset = 0;
return offset;
}
static int davinci_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct davinci_runtime_data *prtd;
struct snd_pcm_hardware *ppcm;
int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct davinci_pcm_dma_params *pa;
struct davinci_pcm_dma_params *params;
pa = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
if (!pa)
return -ENODEV;
params = &pa[substream->stream];
ppcm = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
&pcm_hardware_playback : &pcm_hardware_capture;
allocate_sram(substream, params->sram_pool, params->sram_size, ppcm);
snd_soc_set_runtime_hwparams(substream, ppcm);
/* ensure that buffer size is a multiple of period size */
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
return ret;
prtd = kzalloc(sizeof(struct davinci_runtime_data), GFP_KERNEL);
if (prtd == NULL)
return -ENOMEM;
spin_lock_init(&prtd->lock);
prtd->params = params;
prtd->asp_channel = -1;
prtd->asp_link[0] = prtd->asp_link[1] = -1;
prtd->ram_channel = -1;
prtd->ram_link = -1;
prtd->ram_link2 = -1;
runtime->private_data = prtd;
ret = davinci_pcm_dma_request(substream);
if (ret) {
printk(KERN_ERR "davinci_pcm: Failed to get dma channels\n");
kfree(prtd);
}
return ret;
}
static int davinci_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct davinci_runtime_data *prtd = runtime->private_data;
if (prtd->ram_channel >= 0)
edma_stop(prtd->ram_channel);
if (prtd->asp_channel >= 0)
edma_stop(prtd->asp_channel);
if (prtd->asp_link[0] >= 0)
edma_unlink(prtd->asp_link[0]);
if (prtd->asp_link[1] >= 0)
edma_unlink(prtd->asp_link[1]);
if (prtd->ram_link >= 0)
edma_unlink(prtd->ram_link);
if (prtd->asp_link[0] >= 0)
edma_free_slot(prtd->asp_link[0]);
if (prtd->asp_link[1] >= 0)
edma_free_slot(prtd->asp_link[1]);
if (prtd->asp_channel >= 0)
edma_free_channel(prtd->asp_channel);
if (prtd->ram_link >= 0)
edma_free_slot(prtd->ram_link);
if (prtd->ram_link2 >= 0)
edma_free_slot(prtd->ram_link2);
if (prtd->ram_channel >= 0)
edma_free_channel(prtd->ram_channel);
kfree(prtd);
return 0;
}
static int davinci_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static int davinci_pcm_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int davinci_pcm_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_pcm_runtime *runtime = substream->runtime;
return dma_mmap_writecombine(substream->pcm->card->dev, vma,
runtime->dma_area,
runtime->dma_addr,
runtime->dma_bytes);
}
static struct snd_pcm_ops davinci_pcm_ops = {
.open = davinci_pcm_open,
.close = davinci_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = davinci_pcm_hw_params,
.hw_free = davinci_pcm_hw_free,
.prepare = davinci_pcm_prepare,
.trigger = davinci_pcm_trigger,
.pointer = davinci_pcm_pointer,
.mmap = davinci_pcm_mmap,
};
static int davinci_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream,
size_t size)
{
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
struct snd_dma_buffer *buf = &substream->dma_buffer;
buf->dev.type = SNDRV_DMA_TYPE_DEV;
buf->dev.dev = pcm->card->dev;
buf->private_data = NULL;
buf->area = dma_alloc_writecombine(pcm->card->dev, size,
&buf->addr, GFP_KERNEL);
pr_debug("davinci_pcm: preallocate_dma_buffer: area=%p, addr=%p, "
"size=%d\n", (void *) buf->area, (void *) buf->addr, size);
if (!buf->area)
return -ENOMEM;
buf->bytes = size;
return 0;
}
static void davinci_pcm_free(struct snd_pcm *pcm)
{
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
int stream;
for (stream = 0; stream < 2; stream++) {
struct snd_dma_buffer *iram_dma;
substream = pcm->streams[stream].substream;
if (!substream)
continue;
buf = &substream->dma_buffer;
if (!buf->area)
continue;
dma_free_writecombine(pcm->card->dev, buf->bytes,
buf->area, buf->addr);
buf->area = NULL;
iram_dma = buf->private_data;
if (iram_dma) {
davinci_free_sram(substream, iram_dma);
kfree(iram_dma);
}
}
}
static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_pcm *pcm = rtd->pcm;
int ret;
ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ret = davinci_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK,
pcm_hardware_playback.buffer_bytes_max);
if (ret)
return ret;
}
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ret = davinci_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE,
pcm_hardware_capture.buffer_bytes_max);
if (ret)
return ret;
}
return 0;
}
static struct snd_soc_platform_driver davinci_soc_platform = {
.ops = &davinci_pcm_ops,
.pcm_new = davinci_pcm_new,
.pcm_free = davinci_pcm_free,
};
int davinci_soc_platform_register(struct device *dev)
{
return devm_snd_soc_register_platform(dev, &davinci_soc_platform);
}
EXPORT_SYMBOL_GPL(davinci_soc_platform_register);
MODULE_AUTHOR("Vladimir Barinov");
MODULE_DESCRIPTION("TI DAVINCI PCM DMA module");
MODULE_LICENSE("GPL");

41
sound/soc/davinci/davinci-pcm.h
View File

@ -1,41 +0,0 @@
/*
* ALSA PCM interface for the TI DAVINCI processor
*
* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _DAVINCI_PCM_H
#define _DAVINCI_PCM_H
#include <linux/genalloc.h>
#include <linux/platform_data/davinci_asp.h>
#include <linux/platform_data/edma.h>
struct davinci_pcm_dma_params {
int channel; /* sync dma channel ID */
unsigned short acnt;
dma_addr_t dma_addr; /* device physical address for DMA */
unsigned sram_size;
struct gen_pool *sram_pool; /* SRAM gen_pool for ping pong */
enum dma_event_q asp_chan_q; /* event queue number for ASP channel */
enum dma_event_q ram_chan_q; /* event queue number for RAM channel */
unsigned char data_type; /* xfer data type */
unsigned char convert_mono_stereo;
unsigned int fifo_level;
};
#if IS_ENABLED(CONFIG_SND_DAVINCI_SOC)
int davinci_soc_platform_register(struct device *dev);
#else
static inline int davinci_soc_platform_register(struct device *dev)
{
return 0;
}
#endif /* CONFIG_SND_DAVINCI_SOC */
#endif

55
sound/soc/davinci/davinci-vcif.c
View File

@ -33,8 +33,9 @@
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include "davinci-pcm.h"
#include "edma-pcm.h"
#include "davinci-i2s.h"
#define MOD_REG_BIT(val, mask, set) do { \
@ -47,7 +48,8 @@
struct davinci_vcif_dev {
struct davinci_vc *davinci_vc;
struct davinci_pcm_dma_params dma_params[2];
struct snd_dmaengine_dai_dma_data dma_data[2];
int dma_request[2];
};
static void davinci_vcif_start(struct snd_pcm_substream *substream)
@ -93,8 +95,6 @@ static int davinci_vcif_hw_params(struct snd_pcm_substream *substream,
{
struct davinci_vcif_dev *davinci_vcif_dev = snd_soc_dai_get_drvdata(dai);
struct davinci_vc *davinci_vc = davinci_vcif_dev->davinci_vc;
struct davinci_pcm_dma_params *dma_params =
&davinci_vcif_dev->dma_params[substream->stream];
u32 w;
/* Restart the codec before setup */
@ -113,16 +113,12 @@ static int davinci_vcif_hw_params(struct snd_pcm_substream *substream,
/* Determine xfer data type */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_U8:
dma_params->data_type = 0;
MOD_REG_BIT(w, DAVINCI_VC_CTRL_RD_BITS_8 |
DAVINCI_VC_CTRL_RD_UNSIGNED |
DAVINCI_VC_CTRL_WD_BITS_8 |
DAVINCI_VC_CTRL_WD_UNSIGNED, 1);
break;
case SNDRV_PCM_FORMAT_S8:
dma_params->data_type = 1;
MOD_REG_BIT(w, DAVINCI_VC_CTRL_RD_BITS_8 |
DAVINCI_VC_CTRL_WD_BITS_8, 1);
@ -130,8 +126,6 @@ static int davinci_vcif_hw_params(struct snd_pcm_substream *substream,
DAVINCI_VC_CTRL_WD_UNSIGNED, 0);
break;
case SNDRV_PCM_FORMAT_S16_LE:
dma_params->data_type = 2;
MOD_REG_BIT(w, DAVINCI_VC_CTRL_RD_BITS_8 |
DAVINCI_VC_CTRL_RD_UNSIGNED |
DAVINCI_VC_CTRL_WD_BITS_8 |
@ -142,8 +136,6 @@ static int davinci_vcif_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
dma_params->acnt = dma_params->data_type;
writel(w, davinci_vc->base + DAVINCI_VC_CTRL);
return 0;
@ -172,24 +164,25 @@ static int davinci_vcif_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
static int davinci_vcif_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct davinci_vcif_dev *dev = snd_soc_dai_get_drvdata(dai);
snd_soc_dai_set_dma_data(dai, substream, dev->dma_params);
return 0;
}
#define DAVINCI_VCIF_RATES SNDRV_PCM_RATE_8000_48000
static const struct snd_soc_dai_ops davinci_vcif_dai_ops = {
.startup = davinci_vcif_startup,
.trigger = davinci_vcif_trigger,
.hw_params = davinci_vcif_hw_params,
};
static int davinci_vcif_dai_probe(struct snd_soc_dai *dai)
{
struct davinci_vcif_dev *dev = snd_soc_dai_get_drvdata(dai);
dai->playback_dma_data = &dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dai->capture_dma_data = &dev->dma_data[SNDRV_PCM_STREAM_CAPTURE];
return 0;
}
static struct snd_soc_dai_driver davinci_vcif_dai = {
.probe = davinci_vcif_dai_probe,
.playback = {
.channels_min = 1,
.channels_max = 2,
@ -225,16 +218,16 @@ static int davinci_vcif_probe(struct platform_device *pdev)
/* DMA tx params */
davinci_vcif_dev->davinci_vc = davinci_vc;
davinci_vcif_dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].channel =
davinci_vc->davinci_vcif.dma_tx_channel;
davinci_vcif_dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].dma_addr =
davinci_vc->davinci_vcif.dma_tx_addr;
davinci_vcif_dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].filter_data =
&davinci_vc->davinci_vcif.dma_tx_channel;
davinci_vcif_dev->dma_data[SNDRV_PCM_STREAM_PLAYBACK].addr =
davinci_vc->davinci_vcif.dma_tx_addr;
/* DMA rx params */
davinci_vcif_dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel =
davinci_vc->davinci_vcif.dma_rx_channel;
davinci_vcif_dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].dma_addr =
davinci_vc->davinci_vcif.dma_rx_addr;
davinci_vcif_dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].filter_data =
&davinci_vc->davinci_vcif.dma_rx_channel;
davinci_vcif_dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].addr =
davinci_vc->davinci_vcif.dma_rx_addr;
dev_set_drvdata(&pdev->dev, davinci_vcif_dev);
@ -245,7 +238,7 @@ static int davinci_vcif_probe(struct platform_device *pdev)
return ret;
}
ret = davinci_soc_platform_register(&pdev->dev);
ret = edma_pcm_platform_register(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
snd_soc_unregister_component(&pdev->dev);

4
sound/soc/intel/broadwell.c
View File

@ -110,9 +110,7 @@ static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = channels->max = 2;
/* set SSP0 to 16 bit */
snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
SNDRV_PCM_HW_PARAM_FIRST_MASK],
SNDRV_PCM_FORMAT_S16_LE);
params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
return 0;
}

4
sound/soc/intel/bytcr_dpcm_rt5640.c
View File

@ -113,9 +113,7 @@ static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = channels->max = 2;
/* set SSP2 to 24-bit */
snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
SNDRV_PCM_HW_PARAM_FIRST_MASK],
SNDRV_PCM_FORMAT_S24_LE);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}

4
sound/soc/intel/cht_bsw_rt5645.c
View File

@ -203,9 +203,7 @@ static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = channels->max = 2;
/* set SSP2 to 24-bit */
snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
SNDRV_PCM_HW_PARAM_FIRST_MASK],
SNDRV_PCM_FORMAT_S24_LE);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}

9
sound/soc/intel/cht_bsw_rt5672.c
View File

@ -178,9 +178,7 @@ static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = channels->max = 2;
/* set SSP2 to 24-bit */
snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
SNDRV_PCM_HW_PARAM_FIRST_MASK],
SNDRV_PCM_FORMAT_S24_LE);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
@ -217,7 +215,7 @@ static struct snd_soc_dai_link cht_dailink[] = {
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
.ignore_suspend = 1,
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
@ -240,13 +238,13 @@ static struct snd_soc_dai_link cht_dailink[] = {
.cpu_dai_name = "ssp2-port",
.platform_name = "sst-mfld-platform",
.no_pcm = 1,
.nonatomic = true,
.codec_dai_name = "rt5670-aif1",
.codec_name = "i2c-10EC5670:00",
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.init = cht_codec_init,
.be_hw_params_fixup = cht_codec_fixup,
.ignore_suspend = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &cht_be_ssp2_ops,
@ -285,7 +283,6 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
static struct platform_driver snd_cht_mc_driver = {
.driver = {
.name = "cht-bsw-rt5672",
.pm = &snd_soc_pm_ops,
},
.probe = snd_cht_mc_probe,
};

4
sound/soc/intel/haswell.c
View File

@ -56,9 +56,7 @@ static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = channels->max = 2;
/* set SSP0 to 16 bit */
snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
SNDRV_PCM_HW_PARAM_FIRST_MASK],
SNDRV_PCM_FORMAT_S16_LE);
params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
return 0;
}

60
sound/soc/intel/sst-mfld-platform-pcm.c
View File

@ -594,11 +594,13 @@ static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
ret_val = stream->ops->stream_drop(sst->dev, str_id);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
dev_dbg(rtd->dev, "sst: in pause\n");
status = SST_PLATFORM_PAUSED;
ret_val = stream->ops->stream_pause(sst->dev, str_id);
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
dev_dbg(rtd->dev, "sst: in pause release\n");
status = SST_PLATFORM_RUNNING;
ret_val = stream->ops->stream_pause_release(sst->dev, str_id);
@ -665,6 +667,9 @@ static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
static int sst_soc_probe(struct snd_soc_platform *platform)
{
struct sst_data *drv = dev_get_drvdata(platform->dev);
drv->soc_card = platform->component.card;
return sst_dsp_init_v2_dpcm(platform);
}
@ -727,9 +732,64 @@ static int sst_platform_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int sst_soc_prepare(struct device *dev)
{
struct sst_data *drv = dev_get_drvdata(dev);
int i;
/* suspend all pcms first */
snd_soc_suspend(drv->soc_card->dev);
snd_soc_poweroff(drv->soc_card->dev);
/* set the SSPs to idle */
for (i = 0; i < drv->soc_card->num_rtd; i++) {
struct snd_soc_dai *dai = drv->soc_card->rtd[i].cpu_dai;
if (dai->active) {
send_ssp_cmd(dai, dai->name, 0);
sst_handle_vb_timer(dai, false);
}
}
return 0;
}
static void sst_soc_complete(struct device *dev)
{
struct sst_data *drv = dev_get_drvdata(dev);
int i;
/* restart SSPs */
for (i = 0; i < drv->soc_card->num_rtd; i++) {
struct snd_soc_dai *dai = drv->soc_card->rtd[i].cpu_dai;
if (dai->active) {
sst_handle_vb_timer(dai, true);
send_ssp_cmd(dai, dai->name, 1);
}
}
snd_soc_resume(drv->soc_card->dev);
}
#else
#define sst_soc_prepare NULL
#define sst_soc_complete NULL
#endif
static const struct dev_pm_ops sst_platform_pm = {
.prepare = sst_soc_prepare,
.complete = sst_soc_complete,
};
static struct platform_driver sst_platform_driver = {
.driver = {
.name = "sst-mfld-platform",
.pm = &sst_platform_pm,
},
.probe = sst_platform_probe,
.remove = sst_platform_remove,

1
sound/soc/intel/sst-mfld-platform.h
View File

@ -174,6 +174,7 @@ struct sst_data {
struct sst_platform_data *pdata;
struct snd_sst_bytes_v2 *byte_stream;
struct mutex lock;
struct snd_soc_card *soc_card;
};
int sst_register_dsp(struct sst_device *sst);
int sst_unregister_dsp(struct sst_device *sst);

128
sound/soc/intel/sst/sst.c
View File

@ -423,23 +423,135 @@ static int intel_sst_runtime_suspend(struct device *dev)
return ret;
}
static int intel_sst_runtime_resume(struct device *dev)
static int intel_sst_suspend(struct device *dev)
{
int ret = 0;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
struct sst_fw_save *fw_save;
int i, ret = 0;
if (ctx->sst_state == SST_RESET) {
ret = sst_load_fw(ctx);
if (ret) {
dev_err(dev, "FW download fail %d\n", ret);
sst_set_fw_state_locked(ctx, SST_RESET);
/* check first if we are already in SW reset */
if (ctx->sst_state == SST_RESET)
return 0;
/*
* check if any stream is active and running
* they should already by suspend by soc_suspend
*/
for (i = 1; i <= ctx->info.max_streams; i++) {
struct stream_info *stream = &ctx->streams[i];
if (stream->status == STREAM_RUNNING) {
dev_err(dev, "stream %d is running, cant susupend, abort\n", i);
return -EBUSY;
}
}
synchronize_irq(ctx->irq_num);
flush_workqueue(ctx->post_msg_wq);
/* Move the SST state to Reset */
sst_set_fw_state_locked(ctx, SST_RESET);
/* tell DSP we are suspending */
if (ctx->ops->save_dsp_context(ctx))
return -EBUSY;
/* save the memories */
fw_save = kzalloc(sizeof(*fw_save), GFP_KERNEL);
if (!fw_save)
return -ENOMEM;
fw_save->iram = kzalloc(ctx->iram_end - ctx->iram_base, GFP_KERNEL);
if (!fw_save->iram) {
ret = -ENOMEM;
goto iram;
}
fw_save->dram = kzalloc(ctx->dram_end - ctx->dram_base, GFP_KERNEL);
if (!fw_save->dram) {
ret = -ENOMEM;
goto dram;
}
fw_save->sram = kzalloc(SST_MAILBOX_SIZE, GFP_KERNEL);
if (!fw_save->sram) {
ret = -ENOMEM;
goto sram;
}
fw_save->ddr = kzalloc(ctx->ddr_end - ctx->ddr_base, GFP_KERNEL);
if (!fw_save->ddr) {
ret = -ENOMEM;
goto ddr;
}
memcpy32_fromio(fw_save->iram, ctx->iram, ctx->iram_end - ctx->iram_base);
memcpy32_fromio(fw_save->dram, ctx->dram, ctx->dram_end - ctx->dram_base);
memcpy32_fromio(fw_save->sram, ctx->mailbox, SST_MAILBOX_SIZE);
memcpy32_fromio(fw_save->ddr, ctx->ddr, ctx->ddr_end - ctx->ddr_base);
ctx->fw_save = fw_save;
ctx->ops->reset(ctx);
return 0;
ddr:
kfree(fw_save->sram);
sram:
kfree(fw_save->dram);
dram:
kfree(fw_save->iram);
iram:
kfree(fw_save);
return ret;
}
static int intel_sst_resume(struct device *dev)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
struct sst_fw_save *fw_save = ctx->fw_save;
int ret = 0;
struct sst_block *block;
if (!fw_save)
return 0;
sst_set_fw_state_locked(ctx, SST_FW_LOADING);
/* we have to restore the memory saved */
ctx->ops->reset(ctx);
ctx->fw_save = NULL;
memcpy32_toio(ctx->iram, fw_save->iram, ctx->iram_end - ctx->iram_base);
memcpy32_toio(ctx->dram, fw_save->dram, ctx->dram_end - ctx->dram_base);
memcpy32_toio(ctx->mailbox, fw_save->sram, SST_MAILBOX_SIZE);
memcpy32_toio(ctx->ddr, fw_save->ddr, ctx->ddr_end - ctx->ddr_base);
kfree(fw_save->sram);
kfree(fw_save->dram);
kfree(fw_save->iram);
kfree(fw_save->ddr);
kfree(fw_save);
block = sst_create_block(ctx, 0, FW_DWNL_ID);
if (block == NULL)
return -ENOMEM;
/* start and wait for ack */
ctx->ops->start(ctx);
ret = sst_wait_timeout(ctx, block);
if (ret) {
dev_err(ctx->dev, "fw download failed %d\n", ret);
/* FW download failed due to timeout */
ret = -EBUSY;
} else {
sst_set_fw_state_locked(ctx, SST_FW_RUNNING);
}
sst_free_block(ctx, block);
return ret;
}
const struct dev_pm_ops intel_sst_pm = {
.suspend = intel_sst_suspend,
.resume = intel_sst_resume,
.runtime_suspend = intel_sst_runtime_suspend,
.runtime_resume = intel_sst_runtime_resume,
};
EXPORT_SYMBOL_GPL(intel_sst_pm);

12
sound/soc/intel/sst/sst.h
View File

@ -337,6 +337,13 @@ struct sst_shim_regs64 {
u64 csr2;
};
struct sst_fw_save {
void *iram;
void *dram;
void *sram;
void *ddr;
};
/**
* struct intel_sst_drv - driver ops
*
@ -428,6 +435,8 @@ struct intel_sst_drv {
* persistent till worker thread gets called
*/
char firmware_name[FW_NAME_SIZE];
struct sst_fw_save *fw_save;
};
/* misc definitions */
@ -544,4 +553,7 @@ int sst_alloc_drv_context(struct intel_sst_drv **ctx,
int sst_context_init(struct intel_sst_drv *ctx);
void sst_context_cleanup(struct intel_sst_drv *ctx);
void sst_configure_runtime_pm(struct intel_sst_drv *ctx);
void memcpy32_toio(void __iomem *dst, const void *src, int count);
void memcpy32_fromio(void *dst, const void __iomem *src, int count);
#endif

63
sound/soc/intel/sst/sst_drv_interface.c
View File

@ -138,12 +138,36 @@ int sst_get_stream(struct intel_sst_drv *ctx,
static int sst_power_control(struct device *dev, bool state)
{
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
int ret = 0;
int usage_count = 0;
dev_dbg(ctx->dev, "state:%d", state);
if (state == true)
return pm_runtime_get_sync(dev);
else
#ifdef CONFIG_PM
usage_count = atomic_read(&dev->power.usage_count);
#else
usage_count = 1;
#endif
if (state == true) {
ret = pm_runtime_get_sync(dev);
dev_dbg(ctx->dev, "Enable: pm usage count: %d\n", usage_count);
if (ret < 0) {
dev_err(ctx->dev, "Runtime get failed with err: %d\n", ret);
return ret;
}
if ((ctx->sst_state == SST_RESET) && (usage_count == 1)) {
ret = sst_load_fw(ctx);
if (ret) {
dev_err(dev, "FW download fail %d\n", ret);
sst_set_fw_state_locked(ctx, SST_RESET);
ret = sst_pm_runtime_put(ctx);
}
}
} else {
dev_dbg(ctx->dev, "Disable: pm usage count: %d\n", usage_count);
return sst_pm_runtime_put(ctx);
}
return ret;
}
/*
@ -572,6 +596,35 @@ static int sst_stream_drop(struct device *dev, int str_id)
return sst_drop_stream(ctx, str_id);
}
static int sst_stream_pause(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
return sst_pause_stream(ctx, str_id);
}
static int sst_stream_resume(struct device *dev, int str_id)
{
struct stream_info *str_info;
struct intel_sst_drv *ctx = dev_get_drvdata(dev);
if (ctx->sst_state != SST_FW_RUNNING)
return 0;
str_info = get_stream_info(ctx, str_id);
if (!str_info)
return -EINVAL;
return sst_resume_stream(ctx, str_id);
}
static int sst_stream_init(struct device *dev, struct pcm_stream_info *str_info)
{
int str_id = 0;
@ -633,6 +686,8 @@ static struct sst_ops pcm_ops = {
.stream_init = sst_stream_init,
.stream_start = sst_stream_start,
.stream_drop = sst_stream_drop,
.stream_pause = sst_stream_pause,
.stream_pause_release = sst_stream_resume,
.stream_read_tstamp = sst_read_timestamp,
.send_byte_stream = sst_send_byte_stream,
.close = sst_close_pcm_stream,

10
sound/soc/intel/sst/sst_loader.c
View File

@ -39,7 +39,15 @@
#include "sst.h"
#include "../sst-dsp.h"
static inline void memcpy32_toio(void __iomem *dst, const void *src, int count)
void memcpy32_toio(void __iomem *dst, const void *src, int count)
{
/* __iowrite32_copy uses 32-bit count values so divide by 4 for
* right count in words
*/
__iowrite32_copy(dst, src, count/4);
}
void memcpy32_fromio(void *dst, const void __iomem *src, int count)
{
/* __iowrite32_copy uses 32-bit count values so divide by 4 for
* right count in words

1
sound/soc/soc-pcm.c
View File

@ -2511,6 +2511,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
/* DAPM dai link stream work */
INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
pcm->nonatomic = rtd->dai_link->nonatomic;
rtd->pcm = pcm;
pcm->private_data = rtd;