提交 af56b1c2 编写于 作者: J Jassi Brar 提交者: Mark Brown

ASoC: S3C64XX: IISv4: Add CPU driver

Add the CPU driver for the IISv4 block found on S3C6410.
For now, the driver is almost a copy of s3c64xx-i2s.c but
it should diverge as more IISv4 specific stuff is added.
Signed-off-by: NJassi Brar <jassi.brar@samsung.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
上级 bd843edf
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
无相关合并请求
......@@ -24,6 +24,11 @@ config SND_S3C64XX_SOC_I2S
select SND_S3C_I2SV2_SOC
select S3C64XX_DMA
config SND_S3C64XX_SOC_I2S_V4
tristate
select SND_S3C_I2SV2_SOC
select S3C64XX_DMA
config SND_S3C_SOC_PCM
tristate
......
......@@ -4,6 +4,7 @@ snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
snd-soc-s3c2412-i2s-objs := s3c2412-i2s.o
snd-soc-s3c64xx-i2s-objs := s3c64xx-i2s.o
snd-soc-s3c-ac97-objs := s3c-ac97.o
snd-soc-s3c64xx-i2s-v4-objs := s3c64xx-i2s-v4.o
snd-soc-s3c-i2s-v2-objs := s3c-i2s-v2.o
snd-soc-s3c-pcm-objs := s3c-pcm.o
......@@ -12,6 +13,7 @@ obj-$(CONFIG_SND_S3C24XX_SOC_I2S) += snd-soc-s3c24xx-i2s.o
obj-$(CONFIG_SND_S3C_SOC_AC97) += snd-soc-s3c-ac97.o
obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o
obj-$(CONFIG_SND_S3C64XX_SOC_I2S) += snd-soc-s3c64xx-i2s.o
obj-$(CONFIG_SND_S3C64XX_SOC_I2S_V4) += snd-soc-s3c64xx-i2s-v4.o
obj-$(CONFIG_SND_S3C_I2SV2_SOC) += snd-soc-s3c-i2s-v2.o
obj-$(CONFIG_SND_S3C_SOC_PCM) += snd-soc-s3c-pcm.o
......
/* sound/soc/s3c24xx/s3c64xx-i2s-v4.c
*
* ALSA SoC Audio Layer - S3C64XX I2Sv4 driver
* Copyright (c) 2010 Samsung Electronics Co. Ltd
* Author: Jaswinder Singh <jassi.brar@samsung.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/clk.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#include <mach/gpio-bank-c.h>
#include <mach/gpio-bank-h.h>
#include <plat/gpio-cfg.h>
#include <mach/map.h>
#include <mach/dma.h>
#include "s3c-dma.h"
#include "regs-i2s-v2.h"
#include "s3c64xx-i2s.h"
static struct s3c2410_dma_client s3c64xx_dma_client_out = {
.name = "I2Sv4 PCM Stereo out"
};
static struct s3c2410_dma_client s3c64xx_dma_client_in = {
.name = "I2Sv4 PCM Stereo in"
};
static struct s3c_dma_params s3c64xx_i2sv4_pcm_stereo_out;
static struct s3c_dma_params s3c64xx_i2sv4_pcm_stereo_in;
static struct s3c_i2sv2_info s3c64xx_i2sv4;
struct snd_soc_dai s3c64xx_i2s_v4_dai;
EXPORT_SYMBOL_GPL(s3c64xx_i2s_v4_dai);
static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
{
return cpu_dai->private_data;
}
static int s3c64xx_i2sv4_probe(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
/* configure GPIO for i2s port */
s3c_gpio_cfgpin(S3C64XX_GPC(4), S3C64XX_GPC4_I2S_V40_DO0);
s3c_gpio_cfgpin(S3C64XX_GPC(5), S3C64XX_GPC5_I2S_V40_DO1);
s3c_gpio_cfgpin(S3C64XX_GPC(7), S3C64XX_GPC7_I2S_V40_DO2);
s3c_gpio_cfgpin(S3C64XX_GPH(6), S3C64XX_GPH6_I2S_V40_BCLK);
s3c_gpio_cfgpin(S3C64XX_GPH(7), S3C64XX_GPH7_I2S_V40_CDCLK);
s3c_gpio_cfgpin(S3C64XX_GPH(8), S3C64XX_GPH8_I2S_V40_LRCLK);
s3c_gpio_cfgpin(S3C64XX_GPH(9), S3C64XX_GPH9_I2S_V40_DI);
return 0;
}
static int s3c_i2sv4_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *cpu_dai)
{
struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
struct s3c_dma_params *dma_data;
u32 iismod;
dev_dbg(cpu_dai->dev, "Entered %s\n", __func__);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dma_data = i2s->dma_playback;
else
dma_data = i2s->dma_capture;
snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
iismod = readl(i2s->regs + S3C2412_IISMOD);
dev_dbg(cpu_dai->dev, "%s: r: IISMOD: %x\n", __func__, iismod);
iismod &= ~S3C64XX_IISMOD_BLC_MASK;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
iismod |= S3C64XX_IISMOD_BLC_8BIT;
break;
case SNDRV_PCM_FORMAT_S16_LE:
break;
case SNDRV_PCM_FORMAT_S24_LE:
iismod |= S3C64XX_IISMOD_BLC_24BIT;
break;
}
writel(iismod, i2s->regs + S3C2412_IISMOD);
dev_dbg(cpu_dai->dev, "%s: w: IISMOD: %x\n", __func__, iismod);
return 0;
}
static struct snd_soc_dai_ops s3c64xx_i2sv4_dai_ops = {
.hw_params = s3c_i2sv4_hw_params,
};
static __devinit int s3c64xx_i2sv4_dev_probe(struct platform_device *pdev)
{
struct s3c_i2sv2_info *i2s;
struct snd_soc_dai *dai;
int ret;
i2s = &s3c64xx_i2sv4;
dai = &s3c64xx_i2s_v4_dai;
if (dai->dev) {
dev_dbg(dai->dev, "%s: \
I2Sv4 instance already registered!\n", __func__);
return -EBUSY;
}
dai->dev = &pdev->dev;
dai->name = "s3c64xx-i2s-v4";
dai->id = 0;
dai->symmetric_rates = 1;
dai->playback.channels_min = 2;
dai->playback.channels_max = 2;
dai->playback.rates = S3C64XX_I2S_RATES;
dai->playback.formats = S3C64XX_I2S_FMTS;
dai->capture.channels_min = 2;
dai->capture.channels_max = 2;
dai->capture.rates = S3C64XX_I2S_RATES;
dai->capture.formats = S3C64XX_I2S_FMTS;
dai->probe = s3c64xx_i2sv4_probe;
dai->ops = &s3c64xx_i2sv4_dai_ops;
i2s->feature |= S3C_FEATURE_CDCLKCON;
i2s->dma_capture = &s3c64xx_i2sv4_pcm_stereo_in;
i2s->dma_playback = &s3c64xx_i2sv4_pcm_stereo_out;
i2s->dma_capture->channel = DMACH_HSI_I2SV40_RX;
i2s->dma_capture->dma_addr = S3C64XX_PA_IISV4 + S3C2412_IISRXD;
i2s->dma_playback->channel = DMACH_HSI_I2SV40_TX;
i2s->dma_playback->dma_addr = S3C64XX_PA_IISV4 + S3C2412_IISTXD;
i2s->dma_capture->client = &s3c64xx_dma_client_in;
i2s->dma_capture->dma_size = 4;
i2s->dma_playback->client = &s3c64xx_dma_client_out;
i2s->dma_playback->dma_size = 4;
i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
if (IS_ERR(i2s->iis_cclk)) {
dev_err(&pdev->dev, "failed to get audio-bus\n");
ret = PTR_ERR(i2s->iis_cclk);
goto err;
}
clk_enable(i2s->iis_cclk);
ret = s3c_i2sv2_probe(pdev, dai, i2s, 0);
if (ret)
goto err_clk;
ret = s3c_i2sv2_register_dai(dai);
if (ret != 0)
goto err_i2sv2;
return 0;
err_i2sv2:
/* Not implemented for I2Sv2 core yet */
err_clk:
clk_put(i2s->iis_cclk);
err:
return ret;
}
static __devexit int s3c64xx_i2sv4_dev_remove(struct platform_device *pdev)
{
dev_err(&pdev->dev, "Device removal not yet supported\n");
return 0;
}
static struct platform_driver s3c64xx_i2sv4_driver = {
.probe = s3c64xx_i2sv4_dev_probe,
.remove = s3c64xx_i2sv4_dev_remove,
.driver = {
.name = "s3c64xx-iis-v4",
.owner = THIS_MODULE,
},
};
static int __init s3c64xx_i2sv4_init(void)
{
return platform_driver_register(&s3c64xx_i2sv4_driver);
}
module_init(s3c64xx_i2sv4_init);
static void __exit s3c64xx_i2sv4_exit(void)
{
platform_driver_unregister(&s3c64xx_i2sv4_driver);
}
module_exit(s3c64xx_i2sv4_exit);
/* Module information */
MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
MODULE_DESCRIPTION("S3C64XX I2Sv4 SoC Interface");
MODULE_LICENSE("GPL");
......@@ -37,5 +37,6 @@ struct clk;
SNDRV_PCM_FMTBIT_S24_LE)
extern struct snd_soc_dai s3c64xx_i2s_dai[];
extern struct snd_soc_dai s3c64xx_i2s_v4_dai;
#endif /* __SND_SOC_S3C24XX_S3C64XX_I2S_H */
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册
反馈
建议
客服 返回
顶部