Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history 
yaml
---
r: 187460
b: refs/heads/master
c: f9efc9d
h: refs/heads/master
v: v3
  • Loading branch information
Eric Miao committed Mar 1, 2010
1 parent 03a249d commit fafe2c8
Show file tree
Hide file tree
Showing 3 changed files with 62 additions and 31 deletions.
2 changes: 1 addition & 1 deletion [refs]
View file
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a056bef45529810183f56944dcea8b4e297c2dc3
refs/heads/master: f9efc9df94fd126f7d585339e64edec0c03e904b
1 change: 0 additions & 1 deletion trunk/sound/soc/pxa/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@ config SND_PXA2XX_SOC_I2S

config SND_PXA_SOC_SSP
tristate
select PXA_SSP_LEGACY

config SND_PXA2XX_SOC_CORGI
tristate "SoC Audio support for Sharp Zaurus SL-C7x0"
Expand Down
90 changes: 61 additions & 29 deletions trunk/sound/soc/pxa/pxa-ssp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -42,11 +42,14 @@
* SSP audio private data
*/
struct ssp_priv {
struct ssp_dev dev;
struct ssp_device *ssp;
unsigned int sysclk;
int dai_fmt;
#ifdef CONFIG_PM
struct ssp_state state;
uint32_t cr0;
uint32_t cr1;
uint32_t to;
uint32_t psp;
#endif
};

Expand All @@ -61,6 +64,22 @@ static void dump_registers(struct ssp_device *ssp)
ssp_read_reg(ssp, SSACD));
}

static void ssp_enable(struct ssp_device *ssp)
{
uint32_t sscr0;

sscr0 = __raw_readl(ssp->mmio_base + SSCR0) | SSCR0_SSE;
__raw_writel(sscr0, ssp->mmio_base + SSCR0);
}

static void ssp_disable(struct ssp_device *ssp)
{
uint32_t sscr0;

sscr0 = __raw_readl(ssp->mmio_base + SSCR0) & ~SSCR0_SSE;
__raw_writel(sscr0, ssp->mmio_base + SSCR0);
}

struct pxa2xx_pcm_dma_data {
struct pxa2xx_pcm_dma_params params;
char name[20];
Expand Down Expand Up @@ -94,13 +113,12 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->ssp;
int ret = 0;

if (!cpu_dai->active) {
priv->dev.port = cpu_dai->id + 1;
priv->dev.irq = NO_IRQ;
clk_enable(priv->dev.ssp->clk);
ssp_disable(&priv->dev);
clk_enable(ssp->clk);
ssp_disable(ssp);
}

if (cpu_dai->dma_data) {
Expand All @@ -116,10 +134,11 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->ssp;

if (!cpu_dai->active) {
ssp_disable(&priv->dev);
clk_disable(priv->dev.ssp->clk);
ssp_disable(ssp);
clk_disable(ssp->clk);
}

if (cpu_dai->dma_data) {
Expand All @@ -133,26 +152,39 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->ssp;

if (!cpu_dai->active)
return 0;

ssp_save_state(&priv->dev, &priv->state);
clk_disable(priv->dev.ssp->clk);
priv->cr0 = __raw_readl(ssp->mmio_base + SSCR0);
priv->cr1 = __raw_readl(ssp->mmio_base + SSCR1);
priv->to = __raw_readl(ssp->mmio_base + SSTO);
priv->psp = __raw_readl(ssp->mmio_base + SSPSP);

ssp_disable(ssp);
clk_disable(ssp->clk);
return 0;
}

static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->ssp;
uint32_t sssr = SSSR_ROR | SSSR_TUR | SSSR_BCE;

if (!cpu_dai->active)
return 0;

clk_enable(priv->dev.ssp->clk);
ssp_restore_state(&priv->dev, &priv->state);
ssp_enable(&priv->dev);
clk_enable(ssp->clk);

__raw_writel(sssr, ssp->mmio_base + SSSR);

__raw_writel(priv->cr0 & ~SSCR0_SSE, ssp->mmio_base + SSCR0);
__raw_writel(priv->cr1, ssp->mmio_base + SSCR1);
__raw_writel(priv->to, ssp->mmio_base + SSTO);
__raw_writel(priv->psp, ssp->mmio_base + SSPSP);
__raw_writel(priv->cr0 | SSCR0_SSE, ssp->mmio_base + SSCR0);
return 0;
}

Expand Down Expand Up @@ -201,7 +233,7 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
int clk_id, unsigned int freq, int dir)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
int val;

u32 sscr0 = ssp_read_reg(ssp, SSCR0) &
Expand Down Expand Up @@ -242,11 +274,11 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
/* The SSP clock must be disabled when changing SSP clock mode
* on PXA2xx. On PXA3xx it must be enabled when doing so. */
if (!cpu_is_pxa3xx())
clk_disable(priv->dev.ssp->clk);
clk_disable(ssp->clk);
val = ssp_read_reg(ssp, SSCR0) | sscr0;
ssp_write_reg(ssp, SSCR0, val);
if (!cpu_is_pxa3xx())
clk_enable(priv->dev.ssp->clk);
clk_enable(ssp->clk);

return 0;
}
Expand All @@ -258,7 +290,7 @@ static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
int div_id, int div)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
int val;

switch (div_id) {
Expand Down Expand Up @@ -309,7 +341,7 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
u32 ssacd = ssp_read_reg(ssp, SSACD) & ~0x70;

#if defined(CONFIG_PXA3xx)
Expand Down Expand Up @@ -378,7 +410,7 @@ static int pxa_ssp_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
u32 sscr0;

sscr0 = ssp_read_reg(ssp, SSCR0);
Expand Down Expand Up @@ -413,7 +445,7 @@ static int pxa_ssp_set_dai_tristate(struct snd_soc_dai *cpu_dai,
int tristate)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
u32 sscr1;

sscr1 = ssp_read_reg(ssp, SSCR1);
Expand All @@ -435,7 +467,7 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
u32 sscr0;
u32 sscr1;
u32 sspsp;
Expand Down Expand Up @@ -530,7 +562,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
int chn = params_channels(params);
u32 sscr0;
u32 sspsp;
Expand Down Expand Up @@ -640,12 +672,12 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
int ret = 0;
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
struct ssp_device *ssp = priv->ssp;
int val;

switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
ssp_enable(&priv->dev);
ssp_enable(ssp);
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
val = ssp_read_reg(ssp, SSCR1);
Expand All @@ -664,7 +696,7 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
else
val |= SSCR1_RSRE;
ssp_write_reg(ssp, SSCR1, val);
ssp_enable(&priv->dev);
ssp_enable(ssp);
break;
case SNDRV_PCM_TRIGGER_STOP:
val = ssp_read_reg(ssp, SSCR1);
Expand All @@ -675,7 +707,7 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
ssp_write_reg(ssp, SSCR1, val);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
ssp_disable(&priv->dev);
ssp_disable(ssp);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
val = ssp_read_reg(ssp, SSCR1);
Expand Down Expand Up @@ -705,8 +737,8 @@ static int pxa_ssp_probe(struct platform_device *pdev,
if (!priv)
return -ENOMEM;

priv->dev.ssp = ssp_request(dai->id + 1, "SoC audio");
if (priv->dev.ssp == NULL) {
priv->ssp = ssp_request(dai->id + 1, "SoC audio");
if (priv->ssp == NULL) {
ret = -ENODEV;
goto err_priv;
}
Expand All @@ -725,7 +757,7 @@ static void pxa_ssp_remove(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
struct ssp_priv *priv = dai->private_data;
ssp_free(priv->dev.ssp);
ssp_free(priv->ssp);
}

#define PXA_SSP_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
Expand Down

0 comments on commit fafe2c8

Please sign in to comment.