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-rw-r--r--sound/soc/codecs/wm8731.c4
-rw-r--r--sound/soc/s3c24xx/Kconfig8
-rw-r--r--sound/soc/s3c24xx/Makefile2
-rw-r--r--sound/soc/s3c24xx/s3c-i2s-v2.c19
-rw-r--r--sound/soc/s3c24xx/s3c24xx-pcm.c17
-rw-r--r--sound/soc/s3c24xx/s3c64xx-i2s.c44
-rw-r--r--sound/soc/s3c24xx/s3c64xx-i2s.h3
-rw-r--r--sound/soc/s3c24xx/smdk6410-wm8731.c227
8 files changed, 312 insertions, 12 deletions
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index efbd4449bd3..6edd3447f5a 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -73,6 +73,8 @@ static inline void wm8731_write_reg_cache(struct snd_soc_codec *codec,
u16 *cache = codec->reg_cache;
if (reg >= WM8731_CACHEREGNUM)
return;
+
+ printk(KERN_INFO "%s: reg %d, val %04x\n", __func__, reg, value);
cache[reg] = value;
}
@@ -84,6 +86,8 @@ static int wm8731_write(struct snd_soc_codec *codec, unsigned int reg,
{
u8 data[2];
+ printk(KERN_INFO "%s: reg %d val %04x\n", __func__, reg, value);
+
/* data is
* D15..D9 WM8731 register offset
* D8...D0 register data
diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
index 11dcdfa663f..1ed87482b42 100644
--- a/sound/soc/s3c24xx/Kconfig
+++ b/sound/soc/s3c24xx/Kconfig
@@ -84,3 +84,11 @@ config SND_S3C24XX_SOC_S3C24XX_UDA134X
depends on SND_S3C24XX_SOC
select SND_S3C24XX_SOC_I2S
select SND_SOC_UDA134X
+
+config SND_S3C64XX_SOC_SMDK6410_WM8731
+ tristate "SoC I2S Audio support for WM8731 added to an SMDK6410"
+ depends on SND_S3C24XX_SOC
+ select SND_S3C64XX_SOC_I2S
+ select SND_SOC_WM8731
+ help
+ Support for an WM8731 add-on board on I2S channel 0 on an SMDK6410
diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
index c1ff0e4bcde..08bd5874633 100644
--- a/sound/soc/s3c24xx/Makefile
+++ b/sound/soc/s3c24xx/Makefile
@@ -21,6 +21,7 @@ snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o
snd-soc-om-gta03-wm8753-objs := om_gta03_wm8753.o
+snd-soc-smdk6410-wm8731-objs := smdk6410-wm8731.o
obj-$(CONFIG_SND_S3C24XX_SOC_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -29,3 +30,4 @@ obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
obj-$(CONFIG_SND_S3C24XX_SOC_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
obj-$(CONFIG_SND_S3C24XX_SOC_OM_GTA03_WM8753) += snd-soc-om-gta03-wm8753.o
+obj-$(CONFIG_SND_S3C64XX_SOC_SMDK6410_WM8731) += snd-soc-smdk6410-wm8731.o
diff --git a/sound/soc/s3c24xx/s3c-i2s-v2.c b/sound/soc/s3c24xx/s3c-i2s-v2.c
index 1dda7c85622..8a57f77d9a2 100644
--- a/sound/soc/s3c24xx/s3c-i2s-v2.c
+++ b/sound/soc/s3c24xx/s3c-i2s-v2.c
@@ -257,6 +257,25 @@ static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
iismod = readl(i2s->regs + S3C2412_IISMOD);
DBG("hw_params r: IISMOD: %x \n", iismod);
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#define IISMOD_MASTER_MASK S3C2412_IISMOD_MASTER_MASK
+#define IISMOD_SLAVE S3C2412_IISMOD_SLAVE
+#define IISMOD_MASTER S3C2412_IISMOD_MASTER_INTERNAL
+#endif
+
+#if defined(CONFIG_CPU_S3C64XX)
+/* From Rev1.1 datasheet, we have two master and two slave modes:
+ * IMS[11:10]:
+ * 00 = master mode, fed from PCLK
+ * 01 = master mode, fed from CLKAUDIO
+ * 10 = slave mode, using PCLK
+ * 11 = slave mode, using I2SCLK
+ */
+#define IISMOD_MASTER_MASK (1 << 11)
+#define IISMOD_SLAVE (1 << 11)
+#define IISMOD_MASTER (0x0)
+#endif
+
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
i2s->master = 0;
diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c
index e797e862724..7458f00dfab 100644
--- a/sound/soc/s3c24xx/s3c24xx-pcm.c
+++ b/sound/soc/s3c24xx/s3c24xx-pcm.c
@@ -82,11 +82,19 @@ static void s3c24xx_pcm_enqueue(struct snd_pcm_substream *substream)
{
struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
dma_addr_t pos = prtd->dma_pos;
+ unsigned int limit;
int ret;
DBG("Entered %s\n", __func__);
- while (prtd->dma_loaded < prtd->dma_limit) {
+ if (s3c_dma_has_circular()) {
+ limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
+ } else
+ limit = prtd->dma_limit;
+
+ printk(KERN_INFO "%s: loaded %d, limit %d\n", __func__, prtd->dma_loaded, limit);
+
+ while (prtd->dma_loaded < limit) {
unsigned long len = prtd->dma_period;
DBG("dma_loaded: %d\n", prtd->dma_loaded);
@@ -130,7 +138,7 @@ static void s3c24xx_audio_buffdone(struct s3c2410_dma_chan *channel,
snd_pcm_period_elapsed(substream);
spin_lock(&prtd->lock);
- if (prtd->state & ST_RUNNING) {
+ if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
prtd->dma_loaded--;
s3c24xx_pcm_enqueue(substream);
}
@@ -171,6 +179,11 @@ static int s3c24xx_pcm_hw_params(struct snd_pcm_substream *substream,
DBG(KERN_ERR "failed to get dma channel: %d\n", ret);
return ret;
}
+
+ /* use the circular buffering if we have it available. */
+ if (s3c_dma_has_circular())
+ s3c2410_dma_setflags(prtd->params->channel,
+ S3C2410_DMAF_CIRCULAR);
}
s3c2410_dma_set_buffdone_fn(prtd->params->channel,
diff --git a/sound/soc/s3c24xx/s3c64xx-i2s.c b/sound/soc/s3c24xx/s3c64xx-i2s.c
index 2109b21ef9f..3334c747cc1 100644
--- a/sound/soc/s3c24xx/s3c64xx-i2s.c
+++ b/sound/soc/s3c24xx/s3c64xx-i2s.c
@@ -49,11 +49,13 @@ static struct s3c2410_dma_client s3c64xx_dma_client_in = {
static struct s3c24xx_pcm_dma_params s3c64xx_i2s_pcm_stereo_out[2] = {
[0] = {
+ .channel = DMACH_I2S0_OUT,
.client = &s3c64xx_dma_client_out,
.dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISTXD,
.dma_size = 4,
},
[1] = {
+ .channel = DMACH_I2S1_OUT,
.client = &s3c64xx_dma_client_out,
.dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISTXD,
.dma_size = 4,
@@ -62,11 +64,13 @@ static struct s3c24xx_pcm_dma_params s3c64xx_i2s_pcm_stereo_out[2] = {
static struct s3c24xx_pcm_dma_params s3c64xx_i2s_pcm_stereo_in[2] = {
[0] = {
+ .channel = DMACH_I2S0_IN,
.client = &s3c64xx_dma_client_in,
.dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISRXD,
.dma_size = 4,
},
[1] = {
+ .channel = DMACH_I2S1_IN,
.client = &s3c64xx_dma_client_in,
.dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISRXD,
.dma_size = 4,
@@ -75,16 +79,33 @@ static struct s3c24xx_pcm_dma_params s3c64xx_i2s_pcm_stereo_in[2] = {
static struct s3c_i2sv2_info s3c64xx_i2s[2];
-static int s3c64xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
+static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
{
- /* TODO */
- return 0;
+ return cpu_dai->private_data;
}
-static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
+static int s3c64xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
{
- return cpu_dai->private_data;
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ switch (clk_id) {
+ case S3C64XX_CLKSRC_PCLK:
+ iismod &= ~S3C64XX_IISMOD_IMS_SYSMUX;
+ break;
+
+ case S3C64XX_CLKSRC_MUX:
+ iismod |= S3C64XX_IISMOD_IMS_SYSMUX;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+
+ return 0;
}
unsigned long s3c64xx_i2s_get_clockrate(struct snd_soc_dai *dai)
@@ -95,6 +116,11 @@ unsigned long s3c64xx_i2s_get_clockrate(struct snd_soc_dai *dai)
}
EXPORT_SYMBOL_GPL(s3c64xx_i2s_get_clockrate);
+static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
+{
+ return cpu_dai->private_data;
+}
+
static int s3c64xx_i2s_probe(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
@@ -119,9 +145,9 @@ static int s3c64xx_i2s_probe(struct platform_device *pdev,
i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
- i2s->iis_cclk = clk_get(dev, "i2sclk");
- if (i2s->iis_cclk == NULL) {
- dev_err(dev, "failed to get i2sclk");
+ i2s->iis_cclk = clk_get(dev, "audio-bus");
+ if (IS_ERR(i2s->iis_cclk)) {
+ dev_err(dev, "failed to get audio-bus");
iounmap(i2s->regs);
return -ENODEV;
}
diff --git a/sound/soc/s3c24xx/s3c64xx-i2s.h b/sound/soc/s3c24xx/s3c64xx-i2s.h
index add574607ce..b7ffe3c38b6 100644
--- a/sound/soc/s3c24xx/s3c64xx-i2s.h
+++ b/sound/soc/s3c24xx/s3c64xx-i2s.h
@@ -21,7 +21,8 @@
#define S3C64XX_DIV_RCLK S3C_I2SV2_DIV_RCLK
#define S3C64XX_DIV_PRESCALER S3C_I2SV2_DIV_PRESCALER
-/* todo - define clock sources */
+#define S3C64XX_CLKSRC_PCLK (0)
+#define S3C64XX_CLKSRC_MUX (1)
extern struct snd_soc_dai s3c64xx_i2s_dai;
diff --git a/sound/soc/s3c24xx/smdk6410-wm8731.c b/sound/soc/s3c24xx/smdk6410-wm8731.c
new file mode 100644
index 00000000000..e11d5d48a5c
--- /dev/null
+++ b/sound/soc/s3c24xx/smdk6410-wm8731.c
@@ -0,0 +1,227 @@
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <asm/mach-types.h>
+
+#include "../codecs/wm8731.h"
+#include "s3c64xx-i2s.h"
+
+static struct platform_device *socdev;
+
+
+
+static void wm_shutdown(struct snd_pcm_substream *substream)
+{
+ printk(KERN_INFO "%s: substream %p\n", __func__, substream);
+}
+
+static int wm_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_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int fmt;
+ int ret;
+
+ printk(KERN_INFO "%s: (%p,%p)\n", __func__, substream, params);
+ printk(KERN_INFO "%s: dai: cpu %p, codec %p\n", __func__, cpu_dai, codec_dai);
+
+ //fmt = SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
+ fmt = SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM;
+ fmt |= SND_SOC_DAIFMT_I2S;
+
+ ret = snd_soc_dai_set_fmt(codec_dai, fmt);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
+ if (ret < 0)
+ return ret;
+
+ if (fmt == (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM)) {
+ unsigned long iis_clkrate;
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_MUX, 0,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: cpu set_sysclk err\n", __func__);
+ return ret;
+ }
+
+ /* set prescaler division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C64XX_DIV_PRESCALER, 1);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: codec clkdiv err\n", __func__);
+ return ret;
+ }
+
+ iis_clkrate = s3c64xx_i2s_get_clockrate(cpu_dai) / 2;
+ printk(KERN_INFO "%s: clockrate %ld\n", __func__, iis_clkrate);
+
+ iis_clkrate = 12000000; //tmphack//
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK,
+ iis_clkrate,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: codec sysclk err\n", __func__);
+ return ret;
+ }
+
+ } else {
+ /* TODO */
+ BUG();
+ }
+
+ return 0;
+}
+
+static int wm_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_MUX, 0,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: cpu set_sysclk err\n", __func__);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C64XX_DIV_PRESCALER, 1);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: cpu set_clkdiv err\n", __func__);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK,
+ 12000000, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: codec sysclk err\n", __func__);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops wm_ops = {
+ .startup = wm_startup,
+ .hw_params = wm_hw_params,
+ .shutdown = wm_shutdown,
+};
+
+static const struct snd_soc_dapm_widget widgets[] = {
+ SND_SOC_DAPM_LINE("Line Out", NULL),
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_INPUT("Line In"),
+};
+
+static const struct snd_soc_dapm_route intercon[] = {
+ /* headphone connected to LHPOUT1, RHPOUT1 */
+ {"Headphone Jack", NULL, "LHPOUT"},
+ {"Headphone Jack", NULL, "RHPOUT"},
+
+ {"Line Out", NULL, "LOUT" },
+ {"Line Out", NULL, "ROUT" },
+
+ {"LLINEIN", NULL, "Line In" },
+ {"RLINEIN", NULL, "Line In" },
+};
+
+static int wm_init(struct snd_soc_codec *codec)
+{
+ printk(KERN_DEBUG "%s: codec %p\n", __func__, codec);
+
+ snd_soc_dapm_new_controls(codec, widgets, ARRAY_SIZE(widgets));
+ snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+#include "s3c24xx-pcm.h"
+
+static struct snd_soc_dai_link wm_dai_link = {
+ .name = "WM8731",
+ .stream_name = "WM8731",
+ .cpu_dai = &s3c64xx_i2s_dai,
+ .codec_dai = &wm8731_dai,
+ .init = wm_init,
+ .ops = &wm_ops,
+};
+
+static struct snd_soc_card wm_card = {
+ .name = "SMDK6410-WM8731",
+ .dai_link = &wm_dai_link,
+ .platform = &s3c24xx_soc_platform,
+ .num_links = 1,
+};
+
+struct wm8731_setup_data wm_setup = {
+ .i2c_bus = 0,
+ .i2c_address = 0x1a,
+};
+
+static struct snd_soc_device wm_snd_devdata = {
+ .card = &wm_card,
+ .codec_dev = &soc_codec_dev_wm8731,
+ .codec_data = &wm_setup,
+};
+
+static int __init smdk6410_wm8731_init(void)
+{
+ int ret;
+
+ printk(KERN_INFO "%s: welcome\n", __func__);
+
+ if (!machine_is_smdk6410()) {
+ printk(KERN_INFO "%s: for SMDK6410s\n", __func__);
+ return -ENOENT;
+ }
+
+ socdev = platform_device_alloc("soc-audio", 0);
+ if (!socdev) {
+ printk(KERN_ERR "%s: no device\n", __func__);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(socdev, &wm_snd_devdata);
+
+ wm_snd_devdata.dev = &socdev->dev;
+
+ ret = platform_device_add(socdev);
+ if (ret) {
+ printk(KERN_ERR "%s: failed to add\n", __func__);
+ goto err_dev;
+ }
+
+ printk(KERN_INFO "%s: succesfull\n", __func__);
+ return 0;
+
+err_dev:
+ platform_device_put(socdev);
+ return ret;
+}
+
+module_init(smdk6410_wm8731_init);
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 03:17:22 +0000