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Diffstat (limited to 'sound/soc/s3c24xx/s3c-i2s-v2.c')
-rw-r--r--sound/soc/s3c24xx/s3c-i2s-v2.c205
1 files changed, 116 insertions, 89 deletions
diff --git a/sound/soc/s3c24xx/s3c-i2s-v2.c b/sound/soc/s3c24xx/s3c-i2s-v2.c
index 88515946b6c0..13311c8cf965 100644
--- a/sound/soc/s3c24xx/s3c-i2s-v2.c
+++ b/sound/soc/s3c24xx/s3c-i2s-v2.c
@@ -16,24 +16,17 @@
* option) any later version.
*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
#include <linux/delay.h>
#include <linux/clk.h>
-#include <linux/kernel.h>
#include <linux/io.h>
-#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
-#include <sound/initval.h>
#include <sound/soc.h>
-#include <plat/regs-s3c2412-iis.h>
-
#include <mach/dma.h>
+#include "regs-i2s-v2.h"
#include "s3c-i2s-v2.h"
#include "s3c-dma.h"
@@ -272,35 +265,14 @@ static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
iismod = readl(i2s->regs + S3C2412_IISMOD);
pr_debug("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_PLAT_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 (0 << 11)
-#endif
-
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
i2s->master = 0;
- iismod &= ~IISMOD_MASTER_MASK;
- iismod |= IISMOD_SLAVE;
+ iismod |= S3C2412_IISMOD_SLAVE;
break;
case SND_SOC_DAIFMT_CBS_CFS:
i2s->master = 1;
- iismod &= ~IISMOD_MASTER_MASK;
- iismod |= IISMOD_MASTER;
+ iismod &= ~S3C2412_IISMOD_SLAVE;
break;
default:
pr_err("unknwon master/slave format\n");
@@ -332,7 +304,7 @@ static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
return 0;
}
-static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
+static int s3c_i2sv2_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *socdai)
{
@@ -355,37 +327,67 @@ static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
iismod = readl(i2s->regs + S3C2412_IISMOD);
pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+ iismod &= ~S3C64XX_IISMOD_BLC_MASK;
+ /* Sample size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
- iismod |= S3C2412_IISMOD_8BIT;
+ iismod |= S3C64XX_IISMOD_BLC_8BIT;
break;
case SNDRV_PCM_FORMAT_S16_LE:
- iismod &= ~S3C2412_IISMOD_8BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iismod |= S3C64XX_IISMOD_BLC_24BIT;
break;
}
-#endif
-#ifdef CONFIG_PLAT_S3C64XX
- iismod &= ~(S3C64XX_IISMOD_BLC_MASK | S3C2412_IISMOD_BCLK_MASK);
- /* Sample size */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- /* 8 bit sample, 16fs BCLK */
- iismod |= (S3C64XX_IISMOD_BLC_8BIT | S3C2412_IISMOD_BCLK_16FS);
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
+
+ return 0;
+}
+
+static int s3c_i2sv2_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ pr_debug("Entered %s\n", __func__);
+ pr_debug("%s r: IISMOD: %x\n", __func__, iismod);
+
+ switch (clk_id) {
+ case S3C_I2SV2_CLKSRC_PCLK:
+ iismod &= ~S3C2412_IISMOD_IMS_SYSMUX;
break;
- case SNDRV_PCM_FORMAT_S16_LE:
- /* 16 bit sample, 32fs BCLK */
+
+ case S3C_I2SV2_CLKSRC_AUDIOBUS:
+ iismod |= S3C2412_IISMOD_IMS_SYSMUX;
break;
- case SNDRV_PCM_FORMAT_S24_LE:
- /* 24 bit sample, 48fs BCLK */
- iismod |= (S3C64XX_IISMOD_BLC_24BIT | S3C2412_IISMOD_BCLK_48FS);
+
+ case S3C_I2SV2_CLKSRC_CDCLK:
+ /* Error if controller doesn't have the CDCLKCON bit */
+ if (!(i2s->feature & S3C_FEATURE_CDCLKCON))
+ return -EINVAL;
+
+ switch (dir) {
+ case SND_SOC_CLOCK_IN:
+ iismod |= S3C64XX_IISMOD_CDCLKCON;
+ break;
+ case SND_SOC_CLOCK_OUT:
+ iismod &= ~S3C64XX_IISMOD_CDCLKCON;
+ break;
+ default:
+ return -EINVAL;
+ }
break;
+
+ default:
+ return -EINVAL;
}
-#endif
writel(iismod, i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
+ pr_debug("%s w: IISMOD: %x\n", __func__, iismod);
+
return 0;
}
@@ -472,29 +474,25 @@ static int s3c2412_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
switch (div_id) {
case S3C_I2SV2_DIV_BCLK:
- if (div > 3) {
- /* convert value to bit field */
-
- switch (div) {
- case 16:
- div = S3C2412_IISMOD_BCLK_16FS;
- break;
+ switch (div) {
+ case 16:
+ div = S3C2412_IISMOD_BCLK_16FS;
+ break;
- case 32:
- div = S3C2412_IISMOD_BCLK_32FS;
- break;
+ case 32:
+ div = S3C2412_IISMOD_BCLK_32FS;
+ break;
- case 24:
- div = S3C2412_IISMOD_BCLK_24FS;
- break;
+ case 24:
+ div = S3C2412_IISMOD_BCLK_24FS;
+ break;
- case 48:
- div = S3C2412_IISMOD_BCLK_48FS;
- break;
+ case 48:
+ div = S3C2412_IISMOD_BCLK_48FS;
+ break;
- default:
- return -EINVAL;
- }
+ default:
+ return -EINVAL;
}
reg = readl(i2s->regs + S3C2412_IISMOD);
@@ -505,29 +503,25 @@ static int s3c2412_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
break;
case S3C_I2SV2_DIV_RCLK:
- if (div > 3) {
- /* convert value to bit field */
-
- switch (div) {
- case 256:
- div = S3C2412_IISMOD_RCLK_256FS;
- break;
+ switch (div) {
+ case 256:
+ div = S3C2412_IISMOD_RCLK_256FS;
+ break;
- case 384:
- div = S3C2412_IISMOD_RCLK_384FS;
- break;
+ case 384:
+ div = S3C2412_IISMOD_RCLK_384FS;
+ break;
- case 512:
- div = S3C2412_IISMOD_RCLK_512FS;
- break;
+ case 512:
+ div = S3C2412_IISMOD_RCLK_512FS;
+ break;
- case 768:
- div = S3C2412_IISMOD_RCLK_768FS;
- break;
+ case 768:
+ div = S3C2412_IISMOD_RCLK_768FS;
+ break;
- default:
- return -EINVAL;
- }
+ default:
+ return -EINVAL;
}
reg = readl(i2s->regs + S3C2412_IISMOD);
@@ -553,6 +547,33 @@ static int s3c2412_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
return 0;
}
+static snd_pcm_sframes_t s3c2412_i2s_delay(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(dai);
+ u32 reg = readl(i2s->regs + S3C2412_IISFIC);
+ snd_pcm_sframes_t delay;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ delay = S3C2412_IISFIC_TXCOUNT(reg);
+ else
+ delay = S3C2412_IISFIC_RXCOUNT(reg);
+
+ return delay;
+}
+
+struct clk *s3c_i2sv2_get_clock(struct snd_soc_dai *cpu_dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ if (iismod & S3C2412_IISMOD_IMS_SYSMUX)
+ return i2s->iis_cclk;
+ else
+ return i2s->iis_pclk;
+}
+EXPORT_SYMBOL_GPL(s3c_i2sv2_get_clock);
+
/* default table of all avaialable root fs divisors */
static unsigned int iis_fs_tab[] = { 256, 512, 384, 768 };
@@ -735,9 +756,15 @@ int s3c_i2sv2_register_dai(struct snd_soc_dai *dai)
struct snd_soc_dai_ops *ops = dai->ops;
ops->trigger = s3c2412_i2s_trigger;
- ops->hw_params = s3c2412_i2s_hw_params;
+ if (!ops->hw_params)
+ ops->hw_params = s3c_i2sv2_hw_params;
ops->set_fmt = s3c2412_i2s_set_fmt;
ops->set_clkdiv = s3c2412_i2s_set_clkdiv;
+ ops->set_sysclk = s3c_i2sv2_set_sysclk;
+
+ /* Allow overriding by (for example) IISv4 */
+ if (!ops->delay)
+ ops->delay = s3c2412_i2s_delay;
dai->suspend = s3c2412_i2s_suspend;
dai->resume = s3c2412_i2s_resume;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 16:33:14 +0100