/*
- * at91rm9200-i2s.c -- ALSA Soc Audio Layer Platform driver and DMA engine
+ * at91-i2s.c -- ALSA SoC I2S Audio Layer Platform driver
*
* Author: Frank Mandarino <fmandarino@endrelia.com>
* Endrelia Technologies Inc.
#include <sound/initval.h>
#include <sound/soc.h>
-#include <asm/arch/at91rm9200.h>
-#include <asm/arch/at91rm9200_ssc.h>
-#include <asm/arch/at91rm9200_pdc.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_ssc.h>
+#include <asm/arch/at91_pdc.h>
-#include "at91rm9200-pcm.h"
+#include "at91-pcm.h"
#if 0
-#define DBG(x...) printk(KERN_DEBUG "at91rm9200-i2s:" x)
+#define DBG(x...) printk(KERN_DEBUG "at91-i2s:" x)
#else
#define DBG(x...)
#endif
-#define AT91RM9200_I2S_DAIFMT \
+#if defined(CONFIG_ARCH_AT91SAM9260)
+#define NUM_SSC_DEVICES 1
+#else
+#define NUM_SSC_DEVICES 3
+#endif
+
+
+#define AT91_I2S_DAIFMT \
(SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_NB_NF)
-#define AT91RM9200_I2S_DIR \
+#define AT91_I2S_DIR \
(SND_SOC_DAIDIR_PLAYBACK | SND_SOC_DAIDIR_CAPTURE)
/* priv is (SSC_CMR.DIV << 16 | SSC_TCMR.PERIOD ) */
-static struct snd_soc_dai_mode at91rm9200_i2s[] = {
+static struct snd_soc_dai_mode at91_i2s[] = {
/* 8k: BCLK = (MCLK/10) = (60MHz/50) = 1.2MHz */
{
- .fmt = AT91RM9200_I2S_DAIFMT,
+ .fmt = AT91_I2S_DAIFMT,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_8000,
- .pcmdir = AT91RM9200_I2S_DIR,
+ .pcmdir = AT91_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 1500,
.bfs = SND_SOC_FSBD(10),
/* 16k: BCLK = (MCLK/3) ~= (60MHz/14) = 4.285714MHz */
{
- .fmt = AT91RM9200_I2S_DAIFMT,
+ .fmt = AT91_I2S_DAIFMT,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_16000,
- .pcmdir = AT91RM9200_I2S_DIR,
+ .pcmdir = AT91_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 750,
.bfs = SND_SOC_FSBD(3),
/* 32k: BCLK = (MCLK/3) ~= (60MHz/14) = 4.285714MHz */
{
- .fmt = AT91RM9200_I2S_DAIFMT,
+ .fmt = AT91_I2S_DAIFMT,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_32000,
- .pcmdir = AT91RM9200_I2S_DIR,
+ .pcmdir = AT91_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 375,
.bfs = SND_SOC_FSBD(3),
/* 48k: BCLK = (MCLK/5) ~= (60MHz/26) = 2.3076923MHz */
{
- .fmt = AT91RM9200_I2S_DAIFMT,
+ .fmt = AT91_I2S_DAIFMT,
.pcmfmt = SNDRV_PCM_FMTBIT_S16_LE,
.pcmrate = SNDRV_PCM_RATE_48000,
- .pcmdir = AT91RM9200_I2S_DIR,
+ .pcmdir = AT91_I2S_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 250,
.bfs SND_SOC_FSBD(5),
/*
- * SSC registers required by the PCM DMA engine.
+ * SSC PDC registers required by the PCM DMA engine.
*/
-static struct at91rm9200_ssc_regs ssc_reg[3] = {
- {
- .cr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_SSC_CR),
- .ier = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_SSC_IER),
- .idr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_SSC_IDR),
- },
- {
- .cr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_SSC_CR),
- .ier = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_SSC_IER),
- .idr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_SSC_IDR),
- },
- {
- .cr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_SSC_CR),
- .ier = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_SSC_IER),
- .idr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_SSC_IDR),
- },
-};
-
-static struct at91rm9200_pdc_regs pdc_tx_reg[3] = {
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_TPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_TCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_TNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_TNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_PTCR),
- },
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_TPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_TCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_TNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_TNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_PTCR),
- },
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_TPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_TCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_TNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_TNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_PTCR),
- },
+static struct at91_pdc_regs pdc_tx_reg = {
+ .xpr = AT91_PDC_TPR,
+ .xcr = AT91_PDC_TCR,
+ .xnpr = AT91_PDC_TNPR,
+ .xncr = AT91_PDC_TNCR,
};
-static struct at91rm9200_pdc_regs pdc_rx_reg[3] = {
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_RPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_RCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_RNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_RNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC0 + AT91_PDC_PTCR),
- },
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_RPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_RCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_RNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_RNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC1 + AT91_PDC_PTCR),
- },
- {
- .xpr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_RPR),
- .xcr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_RCR),
- .xnpr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_RNPR),
- .xncr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_RNCR),
- .ptcr = (void __iomem *) (AT91_VA_BASE_SSC2 + AT91_PDC_PTCR),
- },
+static struct at91_pdc_regs pdc_rx_reg = {
+ .xpr = AT91_PDC_RPR,
+ .xcr = AT91_PDC_RCR,
+ .xnpr = AT91_PDC_RNPR,
+ .xncr = AT91_PDC_RNCR,
};
/*
* SSC & PDC status bits for transmit and receive.
*/
-static struct at91rm9200_ssc_mask ssc_tx_mask = {
+static struct at91_ssc_mask ssc_tx_mask = {
.ssc_enable = AT91_SSC_TXEN,
.ssc_disable = AT91_SSC_TXDIS,
.ssc_endx = AT91_SSC_ENDTX,
.pdc_disable = AT91_PDC_TXTDIS,
};
-static struct at91rm9200_ssc_mask ssc_rx_mask = {
+static struct at91_ssc_mask ssc_rx_mask = {
.ssc_enable = AT91_SSC_RXEN,
.ssc_disable = AT91_SSC_RXDIS,
.ssc_endx = AT91_SSC_ENDRX,
.pdc_disable = AT91_PDC_RXTDIS,
};
-/*
- * A MUTEX is used to protect an SSC initialzed flag which allows
- * the substream hw_params() call to initialize the SSC only if
- * there are no other substreams open. If there are other
- * substreams open, the hw_param() call can only check that
- * it is using the same format and rate.
- */
-static DECLARE_MUTEX(ssc0_mutex);
-static DECLARE_MUTEX(ssc1_mutex);
-static DECLARE_MUTEX(ssc2_mutex);
/*
* DMA parameters.
*/
-static at91rm9200_pcm_dma_params_t ssc_dma_params[3][2] = {
+static struct at91_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
{{
.name = "SSC0/I2S PCM Stereo out",
- .ssc = &ssc_reg[0],
- .pdc = &pdc_tx_reg[0],
+ .pdc = &pdc_tx_reg,
.mask = &ssc_tx_mask,
},
{
.name = "SSC0/I2S PCM Stereo in",
- .ssc = &ssc_reg[0],
- .pdc = &pdc_rx_reg[0],
+ .pdc = &pdc_rx_reg,
.mask = &ssc_rx_mask,
}},
+#if NUM_SSC_DEVICES == 3
{{
.name = "SSC1/I2S PCM Stereo out",
- .ssc = &ssc_reg[1],
- .pdc = &pdc_tx_reg[1],
+ .pdc = &pdc_tx_reg,
.mask = &ssc_tx_mask,
},
{
.name = "SSC1/I2S PCM Stereo in",
- .ssc = &ssc_reg[1],
- .pdc = &pdc_rx_reg[1],
+ .pdc = &pdc_rx_reg,
.mask = &ssc_rx_mask,
}},
{{
.name = "SSC2/I2S PCM Stereo out",
- .ssc = &ssc_reg[2],
- .pdc = &pdc_tx_reg[2],
+ .pdc = &pdc_tx_reg,
.mask = &ssc_tx_mask,
},
{
.name = "SSC1/I2S PCM Stereo in",
- .ssc = &ssc_reg[2],
- .pdc = &pdc_rx_reg[2],
+ .pdc = &pdc_rx_reg,
.mask = &ssc_rx_mask,
}},
+#endif
};
-struct at91rm9200_ssc_state {
+/*
+ * A MUTEX is used to protect an SSC initialzed flag which allows
+ * the substream hw_params() call to initialize the SSC only if
+ * there are no other substreams open. If there are other
+ * substreams open, the hw_param() call can only check that
+ * it is using the same format and rate.
+ */
+static DECLARE_MUTEX(ssc0_mutex);
+#if NUM_SSC_DEVICES == 3
+static DECLARE_MUTEX(ssc1_mutex);
+static DECLARE_MUTEX(ssc2_mutex);
+#endif
+
+
+struct at91_ssc_state {
u32 ssc_cmr;
u32 ssc_rcmr;
u32 ssc_rfmr;
u32 ssc_imr;
};
-static struct at91rm9200_ssc_info {
+
+static struct at91_ssc_info {
char *name;
- void __iomem *ssc_base;
- u32 pid;
+ struct at91_ssc_periph ssc;
spinlock_t lock; /* lock for dir_mask */
int dir_mask; /* 0=unused, 1=playback, 2=capture */
struct semaphore *mutex;
int initialized;
int pcmfmt;
int rate;
- at91rm9200_pcm_dma_params_t *dma_params[2];
- struct at91rm9200_ssc_state ssc_state;
+ struct at91_pcm_dma_params *dma_params[2];
+ struct at91_ssc_state ssc_state;
-} ssc_info[3] = {
+} ssc_info[NUM_SSC_DEVICES] = {
{
.name = "ssc0",
- .ssc_base = (void __iomem *) AT91_VA_BASE_SSC0,
- .pid = AT91_ID_SSC0,
.lock = SPIN_LOCK_UNLOCKED,
.dir_mask = 0,
.mutex = &ssc0_mutex,
.initialized = 0,
},
+#if NUM_SSC_DEVICES == 3
{
.name = "ssc1",
- .ssc_base = (void __iomem *) AT91_VA_BASE_SSC1,
- .pid = AT91_ID_SSC1,
.lock = SPIN_LOCK_UNLOCKED,
.dir_mask = 0,
.mutex = &ssc1_mutex,
},
{
.name = "ssc2",
- .ssc_base = (void __iomem *) AT91_VA_BASE_SSC2,
- .pid = AT91_ID_SSC2,
.lock = SPIN_LOCK_UNLOCKED,
.dir_mask = 0,
.mutex = &ssc2_mutex,
.initialized = 0,
},
+#endif
};
-static irqreturn_t at91rm9200_i2s_interrupt(int irq, void *dev_id)
+static irqreturn_t at91_i2s_interrupt(int irq, void *dev_id)
{
- struct at91rm9200_ssc_info *ssc_p = dev_id;
- at91rm9200_pcm_dma_params_t *dma_params;
+ struct at91_ssc_info *ssc_p = dev_id;
+ struct at91_pcm_dma_params *dma_params;
u32 ssc_sr;
int i;
- ssc_sr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_SR)
- & at91_ssc_read(ssc_p->ssc_base + AT91_SSC_IMR);
+ ssc_sr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR)
+ & at91_ssc_read(ssc_p->ssc.base + AT91_SSC_IMR);
/*
* Loop through the substreams attached to this SSC. If
return IRQ_HANDLED;
}
-static int at91rm9200_i2s_startup(struct snd_pcm_substream *substream)
+static int at91_i2s_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at91rm9200_ssc_info *ssc_p = &ssc_info[rtd->cpu_dai->id];
+ struct at91_ssc_info *ssc_p = &ssc_info[rtd->cpu_dai->id];
int dir_mask;
DBG("i2s_startup: SSC_SR=0x%08lx\n",
- at91_ssc_read(ssc_p->ssc_base + AT91_SSC_SR));
+ at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR));
dir_mask = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0x1 : 0x2;
spin_lock_irq(&ssc_p->lock);
return 0;
}
-static void at91rm9200_i2s_shutdown(struct snd_pcm_substream *substream)
+static void at91_i2s_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct at91rm9200_ssc_info *ssc_p = &ssc_info[rtd->cpu_dai->id];
- at91rm9200_pcm_dma_params_t *dma_params = rtd->cpu_dai->dma_data;
+ struct at91_ssc_info *ssc_p = &ssc_info[rtd->cpu_dai->id];
+ struct at91_pcm_dma_params *dma_params = rtd->cpu_dai->dma_data;
int dir, dir_mask;
dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
if (dma_params != NULL) {
- at91_ssc_write(dma_params->ssc->cr, dma_params->mask->ssc_disable);
+ at91_ssc_write(dma_params->ssc_base + AT91_SSC_CR,
+ dma_params->mask->ssc_disable);
DBG("%s disabled SSC_SR=0x%08lx\n", (dir ? "receive" : "transmit"),
- at91_ssc_read(ssc_p->ssc_base + AT91_SSC_SR));
+ at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR));
+ dma_params->ssc_base = NULL;
dma_params->substream = NULL;
ssc_p->dma_params[dir] = NULL;
}
ssc_p->dir_mask &= ~dir_mask;
if (!ssc_p->dir_mask) {
/* Shutdown the SSC clock. */
- DBG("Stopping pid %d clock\n", ssc_p->pid);
- at91_sys_write(AT91_PMC_PCDR, 1<<ssc_p->pid);
+ DBG("Stopping pid %d clock\n", ssc_p->ssc.pid);
+ at91_sys_write(AT91_PMC_PCDR, 1<<ssc_p->ssc.pid);
if (ssc_p->initialized)
- free_irq(ssc_p->pid, ssc_p);
+ free_irq(ssc_p->ssc.pid, ssc_p);
/* Reset the SSC */
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_CR, AT91_SSC_SWRST);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR, AT91_SSC_SWRST);
/* Force a re-init on the next hw_params() call. */
ssc_p->initialized = 0;
}
#ifdef CONFIG_PM
-static int at91rm9200_i2s_suspend(struct platform_device *pdev,
+static int at91_i2s_suspend(struct platform_device *pdev,
struct snd_soc_cpu_dai *dai)
{
- struct at91rm9200_ssc_info *ssc_p;
+ struct at91_ssc_info *ssc_p;
if(!dai->active)
return 0;
ssc_p = &ssc_info[dai->id];
/* Save the status register before disabling transmit and receive. */
- ssc_p->state->ssc_sr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_SR);
- at91_ssc_write(ssc_p->ssc_base +
+ ssc_p->state->ssc_sr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_SR);
+ at91_ssc_write(ssc_p->ssc.base +
AT91_SSC_CR, AT91_SSC_TXDIS | AT91_SSC_RXDIS);
/* Save the current interrupt mask, then disable unmasked interrupts. */
- ssc_p->state->ssc_imr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_IMR);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_IDR, ssc_p->state->ssc_imr);
+ ssc_p->state->ssc_imr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_IMR);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_IDR, ssc_p->state->ssc_imr);
- ssc_p->state->ssc_cmr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_CMR);
- ssc_p->state->ssc_rcmr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_RCMR);
- ssc_p->state->ssc_rfmr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_RCMR);
- ssc_p->state->ssc_tcmr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_RCMR);
- ssc_p->state->ssc_tfmr = at91_ssc_read(ssc_p->ssc_base + AT91_SSC_RCMR);
+ ssc_p->state->ssc_cmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_CMR);
+ ssc_p->state->ssc_rcmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RCMR);
+ ssc_p->state->ssc_rfmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RCMR);
+ ssc_p->state->ssc_tcmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RCMR);
+ ssc_p->state->ssc_tfmr = at91_ssc_read(ssc_p->ssc.base + AT91_SSC_RCMR);
return 0;
}
-static int at91rm9200_i2s_resume(struct platform_device *pdev,
+static int at91_i2s_resume(struct platform_device *pdev,
struct snd_soc_cpu_dai *dai)
{
- struct at91rm9200_ssc_info *ssc_p;
+ struct at91_ssc_info *ssc_p;
u32 cr_mask;
if(!dai->active)
ssc_p = &ssc_info[dai->id];
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RCMR, ssc_p->state->ssc_tfmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RCMR, ssc_p->state->ssc_tcmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RCMR, ssc_p->state->ssc_rfmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RCMR, ssc_p->state->ssc_rcmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_CMR, ssc_p->state->ssc_cmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, ssc_p->state->ssc_tfmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, ssc_p->state->ssc_tcmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, ssc_p->state->ssc_rfmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, ssc_p->state->ssc_rcmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CMR, ssc_p->state->ssc_cmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_IER, ssc_p->state->ssc_imr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_IER, ssc_p->state->ssc_imr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_CR,
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR,
((ssc_p->state->ssc_sr & AT91_SSC_RXENA) ? AT91_SSC_RXEN : 0) |
((ssc_p->state->ssc_sr & AT91_SSC_TXENA) ? AT91_SSC_TXEN : 0));
}
#else
-#define at91rm9200_i2s_suspend NULL
-#define at91rm9200_i2s_resume NULL
+#define at91_i2s_suspend NULL
+#define at91_i2s_resume NULL
#endif
-static unsigned int at91rm9200_i2s_config_sysclk(
+static unsigned int at91_i2s_config_sysclk(
struct snd_soc_cpu_dai *iface, struct snd_soc_clock_info *info,
unsigned int clk)
{
return 12000000;
}
-static int at91rm9200_i2s_hw_params(struct snd_pcm_substream *substream,
+static int at91_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
int id = rtd->cpu_dai->id;
- struct at91rm9200_ssc_info *ssc_p = &ssc_info[id];
- at91rm9200_pcm_dma_params_t *dma_params;
+ struct at91_ssc_info *ssc_p = &ssc_info[id];
+ struct at91_pcm_dma_params *dma_params;
unsigned int pcmfmt, rate;
int dir, channels, bits;
struct clk *mck_clk;
- unsigned long bclk;
u32 div, period, tfmr, rfmr, tcmr, rcmr;
int ret;
dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
dma_params = &ssc_dma_params[id][dir];
+ dma_params->ssc_base = ssc_p->ssc.base;
dma_params->substream = substream;
ssc_p->dma_params[dir] = dma_params;
dma_params->pdc_xfer_size = 2;
break;
default:
- printk(KERN_WARNING "at91rm9200-i2s: unsupported format %x\n",
+ printk(KERN_WARNING "at91-i2s: unsupported format %x\n",
pcmfmt);
return -EINVAL;
}
*/
if (ssc_p->initialized) {
if (pcmfmt != ssc_p->pcmfmt || rate != ssc_p->rate) {
- printk(KERN_WARNING "at91rm9200-i2s: "
+ printk(KERN_WARNING "at91-i2s: "
"incompatible substream in other direction\n");
up(ssc_p->mutex);
return -EINVAL;
}
} else {
/* Enable PMC peripheral clock for this SSC */
- DBG("Starting pid %d clock\n", ssc_p->pid);
- at91_sys_write(AT91_PMC_PCER, 1<<ssc_p->pid);
+ DBG("Starting pid %d clock\n", ssc_p->ssc.pid);
+ at91_sys_write(AT91_PMC_PCER, 1<<ssc_p->ssc.pid);
/* Reset the SSC */
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_CR, AT91_SSC_SWRST);
-
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_RPR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_RCR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_RNPR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_RNCR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_TPR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_TCR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_TNPR, 0);
- at91_ssc_write(ssc_p->ssc_base + AT91_PDC_TNCR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CR, AT91_SSC_SWRST);
- mck_clk = clk_get(NULL, "mck");
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_RPR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_RCR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_RNPR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_RNCR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_TPR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_TCR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_TNPR, 0);
+ at91_ssc_write(ssc_p->ssc.base + AT91_PDC_TNCR, 0);
div = rtd->cpu_dai->dai_runtime.priv >> 16;
period = rtd->cpu_dai->dai_runtime.priv & 0xffff;
- bclk = 60000000 / (2 * div);
- DBG("mck %ld fsbd %d bfs %d bfs_real %d bclk %ld div %d period %d\n",
+ mck_clk = clk_get(NULL, "mck");
+
+ DBG("mck %lu fsbd %u bfs %llu bfs_real %u bclk %lu div %u period %u\n",
clk_get_rate(mck_clk),
SND_SOC_FSBD(6),
rtd->cpu_dai->dai_runtime.bfs,
SND_SOC_FSBD_REAL(rtd->cpu_dai->dai_runtime.bfs),
- bclk,
+ clk_get_rate(mck_clk) / (2 * div),
div,
period);
clk_put(mck_clk);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_CMR, div);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_CMR, div);
/*
* Setup the TFMR and RFMR for the proper data format.
| (( 0 << 5) & AT91_SSC_DATDEF)
| (((bits - 1) << 0) & AT91_SSC_DATALEN);
DBG("SSC_TFMR=0x%08x\n", tfmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_TFMR, tfmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TFMR, tfmr);
rfmr =
(( AT91_SSC_FSEDGE_POSITIVE ) & AT91_SSC_FSEDGE)
| (((bits - 1) << 0) & AT91_SSC_DATALEN);
DBG("SSC_RFMR=0x%08x\n", rfmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RFMR, rfmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RFMR, rfmr);
/*
* Setup the TCMR and RCMR to generate the proper BCLK
| (( AT91_SSC_CKS_DIV ) & AT91_SSC_CKS);
DBG("SSC_TCMR=0x%08x\n", tcmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_TCMR, tcmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_TCMR, tcmr);
rcmr =
(( 0 << 24) & AT91_SSC_PERIOD)
| (( AT91_SSC_CKS_CLOCK ) & AT91_SSC_CKS);
DBG("SSC_RCMR=0x%08x\n", rcmr);
- at91_ssc_write(ssc_p->ssc_base + AT91_SSC_RCMR, rcmr);
+ at91_ssc_write(ssc_p->ssc.base + AT91_SSC_RCMR, rcmr);
- if ((ret = request_irq(ssc_p->pid, at91rm9200_i2s_interrupt,
+ if ((ret = request_irq(ssc_p->ssc.pid, at91_i2s_interrupt,
0, ssc_p->name, ssc_p)) < 0) {
- printk(KERN_WARNING "at91rm9200-i2s: request_irq failure\n");
+ printk(KERN_WARNING "at91-i2s: request_irq failure\n");
return ret;
}
}
-static int at91rm9200_i2s_prepare(struct snd_pcm_substream *substream)
+static int at91_i2s_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- at91rm9200_pcm_dma_params_t *dma_params = rtd->cpu_dai->dma_data;
+ struct at91_pcm_dma_params *dma_params = rtd->cpu_dai->dma_data;
- at91_ssc_write(dma_params->ssc->cr, dma_params->mask->ssc_enable);
+ at91_ssc_write(dma_params->ssc_base + AT91_SSC_CR,
+ dma_params->mask->ssc_enable);
DBG("%s enabled SSC_SR=0x%08lx\n",
substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? "transmit" : "receive",
- at91_ssc_read(ssc_info[rtd->cpu_dai->id].ssc_base + AT91_SSC_SR));
+ at91_ssc_read(ssc_info[rtd->cpu_dai->id].ssc.base + AT91_SSC_SR));
return 0;
}
-struct snd_soc_cpu_dai at91rm9200_i2s_dai[] = {
- { .name = "at91rm9200-ssc0/i2s",
+struct snd_soc_cpu_dai at91_i2s_dai[NUM_SSC_DEVICES] = {
+ { .name = "at91_ssc0/i2s",
.id = 0,
.type = SND_SOC_DAI_I2S,
- .suspend = at91rm9200_i2s_suspend,
- .resume = at91rm9200_i2s_resume,
- .config_sysclk = at91rm9200_i2s_config_sysclk,
+ .suspend = at91_i2s_suspend,
+ .resume = at91_i2s_resume,
+ .config_sysclk = at91_i2s_config_sysclk,
.playback = {
.channels_min = 1,
.channels_max = 2,},
.channels_min = 1,
.channels_max = 2,},
.ops = {
- .startup = at91rm9200_i2s_startup,
- .shutdown = at91rm9200_i2s_shutdown,
- .prepare = at91rm9200_i2s_prepare,
- .hw_params = at91rm9200_i2s_hw_params,},
+ .startup = at91_i2s_startup,
+ .shutdown = at91_i2s_shutdown,
+ .prepare = at91_i2s_prepare,
+ .hw_params = at91_i2s_hw_params,},
.caps = {
- .mode = &at91rm9200_i2s[0],
- .num_modes = ARRAY_SIZE(at91rm9200_i2s),},
+ .mode = &at91_i2s[0],
+ .num_modes = ARRAY_SIZE(at91_i2s),},
+ .private_data = &ssc_info[0].ssc,
},
- { .name = "at91rm9200-ssc1/i2s",
+#if NUM_SSC_DEVICES == 3
+ { .name = "at91_ssc1/i2s",
.id = 1,
.type = SND_SOC_DAI_I2S,
- .suspend = at91rm9200_i2s_suspend,
- .resume = at91rm9200_i2s_resume,
- .config_sysclk = at91rm9200_i2s_config_sysclk,
+ .suspend = at91_i2s_suspend,
+ .resume = at91_i2s_resume,
+ .config_sysclk = at91_i2s_config_sysclk,
.playback = {
.channels_min = 1,
.channels_max = 2,},
.channels_min = 1,
.channels_max = 2,},
.ops = {
- .startup = at91rm9200_i2s_startup,
- .shutdown = at91rm9200_i2s_shutdown,
- .prepare = at91rm9200_i2s_prepare,
- .hw_params = at91rm9200_i2s_hw_params,},
+ .startup = at91_i2s_startup,
+ .shutdown = at91_i2s_shutdown,
+ .prepare = at91_i2s_prepare,
+ .hw_params = at91_i2s_hw_params,},
.caps = {
- .mode = &at91rm9200_i2s[0],
- .num_modes = ARRAY_SIZE(at91rm9200_i2s),},
+ .mode = &at91_i2s[0],
+ .num_modes = ARRAY_SIZE(at91_i2s),},
+ .private_data = &ssc_info[1].ssc,
},
- { .name = "at91rm9200-ssc2/i2s",
+ { .name = "at91_ssc2/i2s",
.id = 2,
.type = SND_SOC_DAI_I2S,
- .suspend = at91rm9200_i2s_suspend,
- .resume = at91rm9200_i2s_resume,
- .config_sysclk = at91rm9200_i2s_config_sysclk,
+ .suspend = at91_i2s_suspend,
+ .resume = at91_i2s_resume,
+ .config_sysclk = at91_i2s_config_sysclk,
.playback = {
.channels_min = 1,
.channels_max = 2,},
.channels_min = 1,
.channels_max = 2,},
.ops = {
- .startup = at91rm9200_i2s_startup,
- .shutdown = at91rm9200_i2s_shutdown,
- .prepare = at91rm9200_i2s_prepare,
- .hw_params = at91rm9200_i2s_hw_params,},
+ .startup = at91_i2s_startup,
+ .shutdown = at91_i2s_shutdown,
+ .prepare = at91_i2s_prepare,
+ .hw_params = at91_i2s_hw_params,},
.caps = {
- .mode = &at91rm9200_i2s[0],
- .num_modes = ARRAY_SIZE(at91rm9200_i2s),},
+ .mode = &at91_i2s[0],
+ .num_modes = ARRAY_SIZE(at91_i2s),},
+ .private_data = &ssc_info[2].ssc,
},
+#endif
};
-EXPORT_SYMBOL_GPL(at91rm9200_i2s_dai);
+EXPORT_SYMBOL_GPL(at91_i2s_dai);
/* Module information */
MODULE_AUTHOR("Frank Mandarino, fmandarino@endrelia.com, www.endrelia.com");
-MODULE_DESCRIPTION("AT91RM9200 I2S ASoC Interface");
+MODULE_DESCRIPTION("AT91 I2S ASoC Interface");
MODULE_LICENSE("GPL");
/*
- * at91rm9200-pcm.c -- ALSA PCM interface for the Atmel AT91RM9200 chip.
+ * at91-pcm.c -- ALSA PCM interface for the Atmel AT91 SoC
*
* Author: Frank Mandarino <fmandarino@endrelia.com>
* Endrelia Technologies Inc.
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <asm/arch/at91rm9200.h>
-#include <asm/arch/at91rm9200_ssc.h>
-#include <asm/arch/at91rm9200_pdc.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/at91_ssc.h>
+#include <asm/arch/at91_pdc.h>
-#include "at91rm9200-pcm.h"
+#include "at91-pcm.h"
#if 0
-#define DBG(x...) printk(KERN_INFO "at91rm9200-pcm: " x)
+#define DBG(x...) printk(KERN_INFO "at91-pcm: " x)
#else
#define DBG(x...)
#endif
-static const snd_pcm_hardware_t at91rm9200_pcm_hardware = {
+static const struct snd_pcm_hardware at91_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
.buffer_bytes_max = 32 * 1024,
};
-struct at91rm9200_runtime_data {
- at91rm9200_pcm_dma_params_t *params;
+struct at91_runtime_data {
+ struct at91_pcm_dma_params *params;
dma_addr_t dma_buffer; /* physical address of dma buffer */
dma_addr_t dma_buffer_end; /* first address beyond DMA buffer */
size_t period_size;
u32 pdc_xncr_save;
};
-static void at91rm9200_pcm_dma_irq(u32 ssc_sr,
+static void at91_pcm_dma_irq(u32 ssc_sr,
struct snd_pcm_substream *substream)
{
- struct at91rm9200_runtime_data *prtd = substream->runtime->private_data;
- at91rm9200_pcm_dma_params_t *params = prtd->params;
+ struct at91_runtime_data *prtd = substream->runtime->private_data;
+ struct at91_pcm_dma_params *params = prtd->params;
static int count = 0;
count++;
if (ssc_sr & params->mask->ssc_endbuf) {
printk(KERN_WARNING
- "at91rm9200-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
+ "at91-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
substream->stream == SNDRV_PCM_STREAM_PLAYBACK
? "underrun" : "overrun",
params->name, ssc_sr, count);
/* re-start the PDC */
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_disable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_disable);
prtd->period_ptr += prtd->period_size;
if (prtd->period_ptr >= prtd->dma_buffer_end) {
prtd->period_ptr = prtd->dma_buffer;
}
- at91_ssc_write(params->pdc->xpr, prtd->period_ptr);
- at91_ssc_write(params->pdc->xcr,
+ at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->period_ptr);
+ at91_ssc_write(params->ssc_base + params->pdc->xcr,
prtd->period_size / params->pdc_xfer_size);
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_enable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_enable);
}
if (ssc_sr & params->mask->ssc_endx) {
if (prtd->period_ptr >= prtd->dma_buffer_end) {
prtd->period_ptr = prtd->dma_buffer;
}
- at91_ssc_write(params->pdc->xnpr, prtd->period_ptr);
- at91_ssc_write(params->pdc->xncr,
+ at91_ssc_write(params->ssc_base + params->pdc->xnpr, prtd->period_ptr);
+ at91_ssc_write(params->ssc_base + params->pdc->xncr,
prtd->period_size / params->pdc_xfer_size);
}
snd_pcm_period_elapsed(substream);
}
-static int at91rm9200_pcm_hw_params(struct snd_pcm_substream *substream,
+static int at91_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
- snd_pcm_runtime_t *runtime = substream->runtime;
- struct at91rm9200_runtime_data *prtd = runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct at91_runtime_data *prtd = runtime->private_data;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
/* this may get called several times by oss emulation
runtime->dma_bytes = params_buffer_bytes(params);
prtd->params = rtd->cpu_dai->dma_data;
- prtd->params->dma_intr_handler = at91rm9200_pcm_dma_irq;
+ prtd->params->dma_intr_handler = at91_pcm_dma_irq;
prtd->dma_buffer = runtime->dma_addr;
prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
return 0;
}
-static int at91rm9200_pcm_hw_free(struct snd_pcm_substream *substream)
+static int at91_pcm_hw_free(struct snd_pcm_substream *substream)
{
- struct at91rm9200_runtime_data *prtd = substream->runtime->private_data;
- at91rm9200_pcm_dma_params_t *params = prtd->params;
+ struct at91_runtime_data *prtd = substream->runtime->private_data;
+ struct at91_pcm_dma_params *params = prtd->params;
if (params != NULL) {
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_disable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_disable);
prtd->params->dma_intr_handler = NULL;
}
return 0;
}
-static int at91rm9200_pcm_prepare(struct snd_pcm_substream *substream)
+static int at91_pcm_prepare(struct snd_pcm_substream *substream)
{
- struct at91rm9200_runtime_data *prtd = substream->runtime->private_data;
- at91rm9200_pcm_dma_params_t *params = prtd->params;
+ struct at91_runtime_data *prtd = substream->runtime->private_data;
+ struct at91_pcm_dma_params *params = prtd->params;
- at91_ssc_write(params->ssc->idr,
+ at91_ssc_write(params->ssc_base + AT91_SSC_IDR,
params->mask->ssc_endx | params->mask->ssc_endbuf);
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_disable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_disable);
return 0;
}
-static int at91rm9200_pcm_trigger(struct snd_pcm_substream *substream,
+static int at91_pcm_trigger(struct snd_pcm_substream *substream,
int cmd)
{
- struct at91rm9200_runtime_data *prtd = substream->runtime->private_data;
- at91rm9200_pcm_dma_params_t *params = prtd->params;
+ struct at91_runtime_data *prtd = substream->runtime->private_data;
+ struct at91_pcm_dma_params *params = prtd->params;
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
prtd->period_ptr = prtd->dma_buffer;
- at91_ssc_write(params->pdc->xpr, prtd->period_ptr);
- at91_ssc_write(params->pdc->xcr,
+ at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->period_ptr);
+ at91_ssc_write(params->ssc_base + params->pdc->xcr,
prtd->period_size / params->pdc_xfer_size);
prtd->period_ptr += prtd->period_size;
- at91_ssc_write(params->pdc->xnpr, prtd->period_ptr);
- at91_ssc_write(params->pdc->xncr,
+ at91_ssc_write(params->ssc_base + params->pdc->xnpr, prtd->period_ptr);
+ at91_ssc_write(params->ssc_base + params->pdc->xncr,
prtd->period_size / params->pdc_xfer_size);
DBG("trigger: period_ptr=%lx, xpr=%lx, xcr=%ld, xnpr=%lx, xncr=%ld\n",
(unsigned long) prtd->period_ptr,
- at91_ssc_read(params->pdc->xpr),
- at91_ssc_read(params->pdc->xcr),
- at91_ssc_read(params->pdc->xnpr),
- at91_ssc_read(params->pdc->xncr));
+ at91_ssc_read(params->ssc_base + params->pdc->xpr),
+ at91_ssc_read(params->ssc_base + params->pdc->xcr),
+ at91_ssc_read(params->ssc_base + params->pdc->xnpr),
+ at91_ssc_read(params->ssc_base + params->pdc->xncr));
- at91_ssc_write(params->ssc->ier,
+ at91_ssc_write(params->ssc_base + AT91_SSC_IER,
params->mask->ssc_endx | params->mask->ssc_endbuf);
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_enable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_enable);
- DBG("sr=%lx imr=%lx\n", at91_ssc_read(params->ssc->ier - 4),
- at91_ssc_read(params->ssc->ier + 8));
+ DBG("sr=%lx imr=%lx\n", at91_ssc_read(params->ssc_base + AT91_SSC_SR),
+ at91_ssc_read(params->ssc_base + AT91_SSC_IER));
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_disable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_disable);
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_enable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_enable);
break;
default:
return ret;
}
-static snd_pcm_uframes_t at91rm9200_pcm_pointer(
+static snd_pcm_uframes_t at91_pcm_pointer(
struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct at91rm9200_runtime_data *prtd = runtime->private_data;
- at91rm9200_pcm_dma_params_t *params = prtd->params;
+ struct at91_runtime_data *prtd = runtime->private_data;
+ struct at91_pcm_dma_params *params = prtd->params;
dma_addr_t ptr;
snd_pcm_uframes_t x;
- ptr = (dma_addr_t) at91_ssc_read(params->pdc->xpr);
+ ptr = (dma_addr_t) at91_ssc_read(params->ssc_base + params->pdc->xpr);
x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
if (x == runtime->buffer_size)
return x;
}
-static int at91rm9200_pcm_open(struct snd_pcm_substream *substream)
+static int at91_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct at91rm9200_runtime_data *prtd;
+ struct at91_runtime_data *prtd;
int ret = 0;
- snd_soc_set_runtime_hwparams(substream, &at91rm9200_pcm_hardware);
+ snd_soc_set_runtime_hwparams(substream, &at91_pcm_hardware);
/* ensure that buffer size is a multiple of period size */
ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
goto out;
- prtd = kzalloc(sizeof(struct at91rm9200_runtime_data), GFP_KERNEL);
+ prtd = kzalloc(sizeof(struct at91_runtime_data), GFP_KERNEL);
if (prtd == NULL) {
ret = -ENOMEM;
goto out;
return ret;
}
-static int at91rm9200_pcm_close(struct snd_pcm_substream *substream)
+static int at91_pcm_close(struct snd_pcm_substream *substream)
{
- struct at91rm9200_runtime_data *prtd = substream->runtime->private_data;
+ struct at91_runtime_data *prtd = substream->runtime->private_data;
kfree(prtd);
return 0;
}
-static int at91rm9200_pcm_mmap(struct snd_pcm_substream *substream,
+static int at91_pcm_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->dma_bytes);
}
-struct snd_pcm_ops at91rm9200_pcm_ops = {
- .open = at91rm9200_pcm_open,
- .close = at91rm9200_pcm_close,
+struct snd_pcm_ops at91_pcm_ops = {
+ .open = at91_pcm_open,
+ .close = at91_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = at91rm9200_pcm_hw_params,
- .hw_free = at91rm9200_pcm_hw_free,
- .prepare = at91rm9200_pcm_prepare,
- .trigger = at91rm9200_pcm_trigger,
- .pointer = at91rm9200_pcm_pointer,
- .mmap = at91rm9200_pcm_mmap,
+ .hw_params = at91_pcm_hw_params,
+ .hw_free = at91_pcm_hw_free,
+ .prepare = at91_pcm_prepare,
+ .trigger = at91_pcm_trigger,
+ .pointer = at91_pcm_pointer,
+ .mmap = at91_pcm_mmap,
};
-static int at91rm9200_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
+static int at91_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
int stream)
{
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = at91rm9200_pcm_hardware.buffer_bytes_max;
+ size_t size = at91_pcm_hardware.buffer_bytes_max;
buf->dev.type = SNDRV_DMA_TYPE_DEV;
buf->dev.dev = pcm->card->dev;
return 0;
}
-static u64 at91rm9200_pcm_dmamask = 0xffffffff;
+static u64 at91_pcm_dmamask = 0xffffffff;
-static int at91rm9200_pcm_new(struct snd_card *card,
+static int at91_pcm_new(struct snd_card *card,
struct snd_soc_codec_dai *dai, struct snd_pcm *pcm)
{
int ret = 0;
if (!card->dev->dma_mask)
- card->dev->dma_mask = &at91rm9200_pcm_dmamask;
+ card->dev->dma_mask = &at91_pcm_dmamask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->playback.channels_min) {
- ret = at91rm9200_pcm_preallocate_dma_buffer(pcm,
+ ret = at91_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->capture.channels_min) {
- ret = at91rm9200_pcm_preallocate_dma_buffer(pcm,
+ ret = at91_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)
goto out;
return ret;
}
-static void at91rm9200_pcm_free_dma_buffers(struct snd_pcm *pcm)
+static void at91_pcm_free_dma_buffers(struct snd_pcm *pcm)
{
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
}
}
-static int at91rm9200_pcm_suspend(struct platform_device *pdev,
+static int at91_pcm_suspend(struct platform_device *pdev,
struct snd_soc_cpu_dai *dai)
{
struct snd_pcm_runtime *runtime = dai->runtime;
- struct at91rm9200_runtime_data *prtd;
- at91rm9200_pcm_dma_params_t *params;
+ struct at91_runtime_data *prtd;
+ struct at91_pcm_dma_params *params;
if (!runtime)
return 0;
/* disable the PDC and save the PDC registers */
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_disable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_disable);
- prtd->pdc_xpr_save = at91_ssc_read(params->pdc->xpr);
- prtd->pdc_xcr_save = at91_ssc_read(params->pdc->xcr);
- prtd->pdc_xnpr_save = at91_ssc_read(params->pdc->xnpr);
- prtd->pdc_xncr_save = at91_ssc_read(params->pdc->xncr);
+ prtd->pdc_xpr_save = at91_ssc_read(params->ssc_base + params->pdc->xpr);
+ prtd->pdc_xcr_save = at91_ssc_read(params->ssc_base + params->pdc->xcr);
+ prtd->pdc_xnpr_save = at91_ssc_read(params->ssc_base + params->pdc->xnpr);
+ prtd->pdc_xncr_save = at91_ssc_read(params->ssc_base + params->pdc->xncr);
return 0;
}
-static int at91rm9200_pcm_resume(struct platform_device *pdev,
+static int at91_pcm_resume(struct platform_device *pdev,
struct snd_soc_cpu_dai *dai)
{
struct snd_pcm_runtime *runtime = dai->runtime;
- struct at91rm9200_runtime_data *prtd;
- at91rm9200_pcm_dma_params_t *params;
+ struct at91_runtime_data *prtd;
+ struct at91_pcm_dma_params *params;
if (!runtime)
return 0;
params = prtd->params;
/* restore the PDC registers and enable the PDC */
- at91_ssc_write(params->pdc->xpr, prtd->pdc_xpr_save);
- at91_ssc_write(params->pdc->xcr, prtd->pdc_xcr_save);
- at91_ssc_write(params->pdc->xnpr, prtd->pdc_xnpr_save);
- at91_ssc_write(params->pdc->xncr, prtd->pdc_xncr_save);
+ at91_ssc_write(params->ssc_base + params->pdc->xpr, prtd->pdc_xpr_save);
+ at91_ssc_write(params->ssc_base + params->pdc->xcr, prtd->pdc_xcr_save);
+ at91_ssc_write(params->ssc_base + params->pdc->xnpr, prtd->pdc_xnpr_save);
+ at91_ssc_write(params->ssc_base + params->pdc->xncr, prtd->pdc_xncr_save);
- at91_ssc_write(params->pdc->ptcr, params->mask->pdc_enable);
+ at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_enable);
return 0;
}
-struct snd_soc_platform at91rm9200_soc_platform = {
- .name = "at91rm9200-audio",
- .pcm_ops = &at91rm9200_pcm_ops,
- .pcm_new = at91rm9200_pcm_new,
- .pcm_free = at91rm9200_pcm_free_dma_buffers,
- .suspend = at91rm9200_pcm_suspend,
- .resume = at91rm9200_pcm_resume,
+struct snd_soc_platform at91_soc_platform = {
+ .name = "at91-audio",
+ .pcm_ops = &at91_pcm_ops,
+ .pcm_new = at91_pcm_new,
+ .pcm_free = at91_pcm_free_dma_buffers,
+ .suspend = at91_pcm_suspend,
+ .resume = at91_pcm_resume,
};
-EXPORT_SYMBOL_GPL(at91rm9200_soc_platform);
+EXPORT_SYMBOL_GPL(at91_soc_platform);
MODULE_AUTHOR("Frank Mandarino <fmandarino@endrelia.com>");
-MODULE_DESCRIPTION("Atmel AT91RM9200 PCM module");
+MODULE_DESCRIPTION("Atmel AT91 PCM module");
MODULE_LICENSE("GPL");
projects / linux-2.6 / commitdiff