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Commit eaff2ae7 authored by Philipp Zabel's avatar Philipp Zabel Committed by Jaroslav Kysela
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[ALSA] soc - ASoC 0.13 pxa2xx i2s driver 

This patch updates the pxa2xx I2S driver to the new API in ASoC 0.13.
Changes:-
o Removed DAI capabilities matching code in favour of manual matching in
the machine drivers.
o Added DAI operations for codec and CPU interfaces.
o Removed config_sysclk() function and struct snd_soc_clock_info. No
longer needed as clocking is now configured manually in the machine
drivers. Also removed other clocking data from structures.
o Added pxa2xx-i2s.h header
Signed-off-by: default avatarPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: default avatarLiam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent c8044274
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Showing with 102 additions and 118 deletions
sound/soc/pxa/pxa2xx-i2s.c
View file @ eaff2ae7
...@@ -29,11 +29,7 @@ ...@@ -29,11 +29,7 @@
#include <asm/arch/audio.h> #include <asm/arch/audio.h>
#include "pxa2xx-pcm.h" #include "pxa2xx-pcm.h"
#include "pxa2xx-i2s.h"
/* used to disable sysclk if external crystal is used */
static int extclk;
module_param(extclk, int, 0);
MODULE_PARM_DESC(extclk, "set to 1 to disable pxa2xx i2s sysclk");
struct pxa_i2s_port { struct pxa_i2s_port {
u32 sadiv; u32 sadiv;
...@@ -41,97 +37,10 @@ struct pxa_i2s_port { ...@@ -41,97 +37,10 @@ struct pxa_i2s_port {
u32 sacr1; u32 sacr1;
u32 saimr; u32 saimr;
int master; int master;
u32 fmt;
}; };
static struct pxa_i2s_port pxa_i2s; static struct pxa_i2s_port pxa_i2s;
#define PXA_I2S_DAIFMT \
(SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF)
#define PXA_I2S_DIR \
(SND_SOC_DAIDIR_PLAYBACK | SND_SOC_DAIDIR_CAPTURE)
#define PXA_I2S_RATES \
(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
/* priv is divider */
static struct snd_soc_dai_mode pxa2xx_i2s_modes[] = {
/* pxa2xx I2S frame and clock master modes */
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0x48,
},
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_11025,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0x34,
},
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_16000,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0x24,
},
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_22050,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0x1a,
},
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_44100,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0xd,
},
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_48000,
.pcmdir = PXA_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 256,
.bfs = SND_SOC_FSBD(4),
.priv = 0xc,
},
/* pxa2xx I2S frame master and clock slave mode */
{
.fmt = PXA_I2S_DAIFMT | SND_SOC_DAIFMT_CBM_CFS,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = PXA_I2S_RATES,
.pcmdir = PXA_I2S_DIR,
.fs = SND_SOC_FS_ALL,
.flags = SND_SOC_DAI_BFS_RATE,
.bfs = 64,
.priv = 0x48,
},
};
static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = { static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = {
.name = "I2S PCM Stereo out", .name = "I2S PCM Stereo out",
.dev_addr = __PREG(SADR), .dev_addr = __PREG(SADR),
...@@ -171,8 +80,9 @@ static struct pxa2xx_gpio gpio_bus[] = { ...@@ -171,8 +80,9 @@ static struct pxa2xx_gpio gpio_bus[] = {
static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream) static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream)
{ {
struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
if (!rtd->cpu_dai->active) { if (!cpu_dai->active) {
SACR0 |= SACR0_RST; SACR0 |= SACR0_RST;
SACR0 = 0; SACR0 = 0;
} }
...@@ -191,18 +101,50 @@ static int pxa_i2s_wait(void) ...@@ -191,18 +101,50 @@ static int pxa_i2s_wait(void)
return 0; return 0;
} }
static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream, static int pxa2xx_i2s_set_dai_fmt(struct snd_soc_cpu_dai *cpu_dai,
struct snd_pcm_hw_params *params) unsigned int fmt)
{ {
struct snd_soc_pcm_runtime *rtd = substream->private_data; /* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
pxa_i2s.fmt = 0;
break;
case SND_SOC_DAIFMT_LEFT_J:
pxa_i2s.fmt = SACR1_AMSL;
break;
}
pxa_i2s.master = 0; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
if (rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_CBS_CFS) case SND_SOC_DAIFMT_CBS_CFS:
pxa_i2s.master = 1; pxa_i2s.master = 1;
break;
case SND_SOC_DAIFMT_CBM_CFS:
pxa_i2s.master = 0;
break;
default:
break;
}
return 0;
}
static int pxa2xx_i2s_set_dai_sysclk(struct snd_soc_cpu_dai *cpu_dai,
int clk_id, unsigned int freq, int dir)
{
if (clk_id != PXA2XX_I2S_SYSCLK)
return -ENODEV;
if (pxa_i2s.master && !extclk) if (pxa_i2s.master && dir == SND_SOC_CLOCK_OUT)
pxa_gpio_mode(gpio_bus[pxa_i2s.master].sys); pxa_gpio_mode(gpio_bus[pxa_i2s.master].sys);
return 0;
}
static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
pxa_gpio_mode(gpio_bus[pxa_i2s.master].rx); pxa_gpio_mode(gpio_bus[pxa_i2s.master].rx);
pxa_gpio_mode(gpio_bus[pxa_i2s.master].tx); pxa_gpio_mode(gpio_bus[pxa_i2s.master].tx);
pxa_gpio_mode(gpio_bus[pxa_i2s.master].frm); pxa_gpio_mode(gpio_bus[pxa_i2s.master].frm);
...@@ -211,9 +153,9 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream, ...@@ -211,9 +153,9 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
pxa_i2s_wait(); pxa_i2s_wait();
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
rtd->cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_out; cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_out;
else else
rtd->cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_in; cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_in;
/* is port used by another stream */ /* is port used by another stream */
if (!(SACR0 & SACR0_ENB)) { if (!(SACR0 & SACR0_ENB)) {
...@@ -224,16 +166,37 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream, ...@@ -224,16 +166,37 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
SACR0 |= SACR0_BCKD; SACR0 |= SACR0_BCKD;
SACR0 |= SACR0_RFTH(14) | SACR0_TFTH(1); SACR0 |= SACR0_RFTH(14) | SACR0_TFTH(1);
SACR1 |= pxa_i2s.fmt;
if (rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_LEFT_J)
SACR1 |= SACR1_AMSL;
} }
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
SAIMR |= SAIMR_TFS; SAIMR |= SAIMR_TFS;
else else
SAIMR |= SAIMR_RFS; SAIMR |= SAIMR_RFS;
SADIV = rtd->cpu_dai->dai_runtime.priv; switch (params_rate(params)) {
case 8000:
SADIV = 0x48;
break;
case 11025:
SADIV = 0x34;
break;
case 16000:
SADIV = 0x24;
break;
case 22050:
SADIV = 0x1a;
break;
case 44100:
SADIV = 0xd;
break;
case 48000:
SADIV = 0xc;
break;
case 96000: /* not in manual and possibly slightly inaccurate */
SADIV = 0x6;
break;
}
return 0; return 0;
} }
...@@ -316,12 +279,9 @@ static int pxa2xx_i2s_resume(struct platform_device *pdev, ...@@ -316,12 +279,9 @@ static int pxa2xx_i2s_resume(struct platform_device *pdev,
#define pxa2xx_i2s_resume NULL #define pxa2xx_i2s_resume NULL
#endif #endif
/* pxa2xx I2S sysclock is always 256 FS */ #define PXA2XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
static unsigned int pxa_i2s_config_sysclk(struct snd_soc_cpu_dai *iface, SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
struct snd_soc_clock_info *info, unsigned int clk) SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000)
{
return info->rate << 8;
}
struct snd_soc_cpu_dai pxa_i2s_dai = { struct snd_soc_cpu_dai pxa_i2s_dai = {
.name = "pxa2xx-i2s", .name = "pxa2xx-i2s",
...@@ -329,21 +289,25 @@ struct snd_soc_cpu_dai pxa_i2s_dai = { ...@@ -329,21 +289,25 @@ struct snd_soc_cpu_dai pxa_i2s_dai = {
.type = SND_SOC_DAI_I2S, .type = SND_SOC_DAI_I2S,
.suspend = pxa2xx_i2s_suspend, .suspend = pxa2xx_i2s_suspend,
.resume = pxa2xx_i2s_resume, .resume = pxa2xx_i2s_resume,
.config_sysclk = pxa_i2s_config_sysclk,
.playback = { .playback = {
.channels_min = 2, .channels_min = 2,
.channels_max = 2,}, .channels_max = 2,
.rates = PXA2XX_I2S_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.capture = { .capture = {
.channels_min = 2, .channels_min = 2,
.channels_max = 2,}, .channels_max = 2,
.rates = PXA2XX_I2S_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.ops = { .ops = {
.startup = pxa2xx_i2s_startup, .startup = pxa2xx_i2s_startup,
.shutdown = pxa2xx_i2s_shutdown, .shutdown = pxa2xx_i2s_shutdown,
.trigger = pxa2xx_i2s_trigger, .trigger = pxa2xx_i2s_trigger,
.hw_params = pxa2xx_i2s_hw_params,}, .hw_params = pxa2xx_i2s_hw_params,},
.caps = { .dai_ops = {
.num_modes = ARRAY_SIZE(pxa2xx_i2s_modes), .set_fmt = pxa2xx_i2s_set_dai_fmt,
.mode = pxa2xx_i2s_modes,}, .set_sysclk = pxa2xx_i2s_set_dai_sysclk,
},
}; };
EXPORT_SYMBOL_GPL(pxa_i2s_dai); EXPORT_SYMBOL_GPL(pxa_i2s_dai);
......
sound/soc/pxa/pxa2xx-i2s.h 0 → 100644
View file @ eaff2ae7
/*
* linux/sound/arm/pxa2xx-i2s.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _PXA2XX_I2S_H
#define _PXA2XX_I2S_H
/* pxa2xx DAI ID's */
#define PXA2XX_DAI_I2S 0
/* I2S clock */
#define PXA2XX_I2S_SYSCLK 0
extern struct snd_soc_cpu_dai pxa_i2s_dai;
#endif
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