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ASoC: Rename the PSC functions to DMA

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Rename the functions in the mpc5200 DMA file from i2s based names to dma
ones to reflect the file they are in.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Jon Smirl 2009-05-23 19:13:01 -04:00 committed by Mark Brown
parent 89dd084252
commit cebe77674c
3 changed files with 190 additions and 190 deletions
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194
sound/soc/fsl/mpc5200_dma.c
View File

@ -34,21 +34,21 @@ MODULE_LICENSE("GPL");
/*
* Interrupt handlers
*/
static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
static irqreturn_t psc_dma_status_irq(int irq, void *_psc_dma)
{
struct psc_i2s *psc_i2s = _psc_i2s;
struct mpc52xx_psc __iomem *regs = psc_i2s->psc_regs;
struct psc_dma *psc_dma = _psc_dma;
struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
u16 isr;
isr = in_be16(&regs->mpc52xx_psc_isr);
/* Playback underrun error */
if (psc_i2s->playback.active && (isr & MPC52xx_PSC_IMR_TXEMP))
psc_i2s->stats.underrun_count++;
if (psc_dma->playback.active && (isr & MPC52xx_PSC_IMR_TXEMP))
psc_dma->stats.underrun_count++;
/* Capture overrun error */
if (psc_i2s->capture.active && (isr & MPC52xx_PSC_IMR_ORERR))
psc_i2s->stats.overrun_count++;
if (psc_dma->capture.active && (isr & MPC52xx_PSC_IMR_ORERR))
psc_dma->stats.overrun_count++;
out_8(&regs->command, 4 << 4); /* reset the error status */
@ -56,7 +56,7 @@ static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
}
/**
* psc_i2s_bcom_enqueue_next_buffer - Enqueue another audio buffer
* psc_dma_bcom_enqueue_next_buffer - Enqueue another audio buffer
* @s: pointer to stream private data structure
*
* Enqueues another audio period buffer into the bestcomm queue.
@ -65,7 +65,7 @@ static irqreturn_t psc_i2s_status_irq(int irq, void *_psc_i2s)
* the queue. Otherwise the enqueue will fail and the audio ring buffer
* will get out of sync
*/
static void psc_i2s_bcom_enqueue_next_buffer(struct psc_i2s_stream *s)
static void psc_dma_bcom_enqueue_next_buffer(struct psc_dma_stream *s)
{
struct bcom_bd *bd;
@ -82,9 +82,9 @@ static void psc_i2s_bcom_enqueue_next_buffer(struct psc_i2s_stream *s)
}
/* Bestcomm DMA irq handler */
static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
static irqreturn_t psc_dma_bcom_irq(int irq, void *_psc_dma_stream)
{
struct psc_i2s_stream *s = _psc_i2s_stream;
struct psc_dma_stream *s = _psc_dma_stream;
/* For each finished period, dequeue the completed period buffer
* and enqueue a new one in it's place. */
@ -93,7 +93,7 @@ static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
s->period_current_pt += s->period_bytes;
if (s->period_current_pt >= s->period_end)
s->period_current_pt = s->period_start;
psc_i2s_bcom_enqueue_next_buffer(s);
psc_dma_bcom_enqueue_next_buffer(s);
bcom_enable(s->bcom_task);
}
@ -106,39 +106,39 @@ static irqreturn_t psc_i2s_bcom_irq(int irq, void *_psc_i2s_stream)
}
/**
* psc_i2s_startup: create a new substream
* psc_dma_startup: create a new substream
*
* This is the first function called when a stream is opened.
*
* If this is the first stream open, then grab the IRQ and program most of
* the PSC registers.
*/
int psc_i2s_startup(struct snd_pcm_substream *substream,
int psc_dma_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
int rc;
dev_dbg(psc_i2s->dev, "psc_i2s_startup(substream=%p)\n", substream);
dev_dbg(psc_dma->dev, "psc_dma_startup(substream=%p)\n", substream);
if (!psc_i2s->playback.active &&
!psc_i2s->capture.active) {
if (!psc_dma->playback.active &&
!psc_dma->capture.active) {
/* Setup the IRQs */
rc = request_irq(psc_i2s->irq, &psc_i2s_status_irq, IRQF_SHARED,
"psc-i2s-status", psc_i2s);
rc |= request_irq(psc_i2s->capture.irq,
&psc_i2s_bcom_irq, IRQF_SHARED,
"psc-i2s-capture", &psc_i2s->capture);
rc |= request_irq(psc_i2s->playback.irq,
&psc_i2s_bcom_irq, IRQF_SHARED,
"psc-i2s-playback", &psc_i2s->playback);
rc = request_irq(psc_dma->irq, &psc_dma_status_irq, IRQF_SHARED,
"psc-dma-status", psc_dma);
rc |= request_irq(psc_dma->capture.irq,
&psc_dma_bcom_irq, IRQF_SHARED,
"psc-dma-capture", &psc_dma->capture);
rc |= request_irq(psc_dma->playback.irq,
&psc_dma_bcom_irq, IRQF_SHARED,
"psc-dma-playback", &psc_dma->playback);
if (rc) {
free_irq(psc_i2s->irq, psc_i2s);
free_irq(psc_i2s->capture.irq,
&psc_i2s->capture);
free_irq(psc_i2s->playback.irq,
&psc_i2s->playback);
free_irq(psc_dma->irq, psc_dma);
free_irq(psc_dma->capture.irq,
&psc_dma->capture);
free_irq(psc_dma->playback.irq,
&psc_dma->playback);
return -ENODEV;
}
}
@ -146,7 +146,7 @@ int psc_i2s_startup(struct snd_pcm_substream *substream,
return 0;
}
int psc_i2s_hw_free(struct snd_pcm_substream *substream,
int psc_dma_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
snd_pcm_set_runtime_buffer(substream, NULL);
@ -154,29 +154,29 @@ int psc_i2s_hw_free(struct snd_pcm_substream *substream,
}
/**
* psc_i2s_trigger: start and stop the DMA transfer.
* psc_dma_trigger: start and stop the DMA transfer.
*
* This function is called by ALSA to start, stop, pause, and resume the DMA
* transfer of data.
*/
int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
struct psc_i2s_stream *s;
struct mpc52xx_psc __iomem *regs = psc_i2s->psc_regs;
struct psc_dma_stream *s;
struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
u16 imr;
u8 psc_cmd;
unsigned long flags;
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
s = &psc_i2s->capture;
s = &psc_dma->capture;
else
s = &psc_i2s->playback;
s = &psc_dma->playback;
dev_dbg(psc_i2s->dev, "psc_i2s_trigger(substream=%p, cmd=%i)"
dev_dbg(psc_dma->dev, "psc_dma_trigger(substream=%p, cmd=%i)"
" stream_id=%i\n",
substream, cmd, substream->pstr->stream);
@ -207,14 +207,14 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
else
bcom_gen_bd_tx_reset(s->bcom_task);
while (!bcom_queue_full(s->bcom_task))
psc_i2s_bcom_enqueue_next_buffer(s);
psc_dma_bcom_enqueue_next_buffer(s);
bcom_enable(s->bcom_task);
/* Due to errata in the i2s mode; need to line up enabling
/* Due to errata in the dma mode; need to line up enabling
* the transmitter with a transition on the frame sync
* line */
spin_lock_irqsave(&psc_i2s->lock, flags);
spin_lock_irqsave(&psc_dma->lock, flags);
/* first make sure it is low */
while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) != 0)
;
@ -228,7 +228,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK)
psc_cmd |= MPC52xx_PSC_TX_ENABLE;
out_8(&regs->command, psc_cmd);
spin_unlock_irqrestore(&psc_i2s->lock, flags);
spin_unlock_irqrestore(&psc_dma->lock, flags);
break;
@ -236,7 +236,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
/* Turn off the PSC */
s->active = 0;
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (!psc_i2s->playback.active) {
if (!psc_dma->playback.active) {
out_8(&regs->command, 2 << 4); /* reset rx */
out_8(&regs->command, 3 << 4); /* reset tx */
out_8(&regs->command, 4 << 4); /* reset err */
@ -244,7 +244,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
} else {
out_8(&regs->command, 3 << 4); /* reset tx */
out_8(&regs->command, 4 << 4); /* reset err */
if (!psc_i2s->capture.active)
if (!psc_dma->capture.active)
out_8(&regs->command, 2 << 4); /* reset rx */
}
@ -255,15 +255,15 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
break;
default:
dev_dbg(psc_i2s->dev, "invalid command\n");
dev_dbg(psc_dma->dev, "invalid command\n");
return -EINVAL;
}
/* Update interrupt enable settings */
imr = 0;
if (psc_i2s->playback.active)
if (psc_dma->playback.active)
imr |= MPC52xx_PSC_IMR_TXEMP;
if (psc_i2s->capture.active)
if (psc_dma->capture.active)
imr |= MPC52xx_PSC_IMR_ORERR;
out_be16(&regs->isr_imr.imr, imr);
@ -271,36 +271,36 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
}
/**
* psc_i2s_shutdown: shutdown the data transfer on a stream
* psc_dma_shutdown: shutdown the data transfer on a stream
*
* Shutdown the PSC if there are no other substreams open.
*/
void psc_i2s_shutdown(struct snd_pcm_substream *substream,
void psc_dma_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
dev_dbg(psc_i2s->dev, "psc_i2s_shutdown(substream=%p)\n", substream);
dev_dbg(psc_dma->dev, "psc_dma_shutdown(substream=%p)\n", substream);
/*
* If this is the last active substream, disable the PSC and release
* the IRQ.
*/
if (!psc_i2s->playback.active &&
!psc_i2s->capture.active) {
if (!psc_dma->playback.active &&
!psc_dma->capture.active) {
/* Disable all interrupts and reset the PSC */
out_be16(&psc_i2s->psc_regs->isr_imr.imr, 0);
out_8(&psc_i2s->psc_regs->command, 3 << 4); /* reset tx */
out_8(&psc_i2s->psc_regs->command, 2 << 4); /* reset rx */
out_8(&psc_i2s->psc_regs->command, 1 << 4); /* reset mode */
out_8(&psc_i2s->psc_regs->command, 4 << 4); /* reset error */
out_be16(&psc_dma->psc_regs->isr_imr.imr, 0);
out_8(&psc_dma->psc_regs->command, 3 << 4); /* reset tx */
out_8(&psc_dma->psc_regs->command, 2 << 4); /* reset rx */
out_8(&psc_dma->psc_regs->command, 1 << 4); /* reset mode */
out_8(&psc_dma->psc_regs->command, 4 << 4); /* reset error */
/* Release irqs */
free_irq(psc_i2s->irq, psc_i2s);
free_irq(psc_i2s->capture.irq, &psc_i2s->capture);
free_irq(psc_i2s->playback.irq, &psc_i2s->playback);
free_irq(psc_dma->irq, psc_dma);
free_irq(psc_dma->capture.irq, &psc_dma->capture);
free_irq(psc_dma->playback.irq, &psc_dma->playback);
}
}
@ -312,7 +312,7 @@ void psc_i2s_shutdown(struct snd_pcm_substream *substream,
* interaction with the attached codec
*/
static const struct snd_pcm_hardware psc_i2s_pcm_hardware = {
static const struct snd_pcm_hardware psc_dma_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_BATCH,
@ -330,80 +330,80 @@ static const struct snd_pcm_hardware psc_i2s_pcm_hardware = {
.fifo_size = 0,
};
static int psc_i2s_pcm_open(struct snd_pcm_substream *substream)
static int psc_dma_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_i2s_stream *s;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
struct psc_dma_stream *s;
dev_dbg(psc_i2s->dev, "psc_i2s_pcm_open(substream=%p)\n", substream);
dev_dbg(psc_dma->dev, "psc_dma_pcm_open(substream=%p)\n", substream);
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
s = &psc_i2s->capture;
s = &psc_dma->capture;
else
s = &psc_i2s->playback;
s = &psc_dma->playback;
snd_soc_set_runtime_hwparams(substream, &psc_i2s_pcm_hardware);
snd_soc_set_runtime_hwparams(substream, &psc_dma_pcm_hardware);
s->stream = substream;
return 0;
}
static int psc_i2s_pcm_close(struct snd_pcm_substream *substream)
static int psc_dma_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_i2s_stream *s;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
struct psc_dma_stream *s;
dev_dbg(psc_i2s->dev, "psc_i2s_pcm_close(substream=%p)\n", substream);
dev_dbg(psc_dma->dev, "psc_dma_pcm_close(substream=%p)\n", substream);
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
s = &psc_i2s->capture;
s = &psc_dma->capture;
else
s = &psc_i2s->playback;
s = &psc_dma->playback;
s->stream = NULL;
return 0;
}
static snd_pcm_uframes_t
psc_i2s_pcm_pointer(struct snd_pcm_substream *substream)
psc_dma_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_i2s_stream *s;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
struct psc_dma_stream *s;
dma_addr_t count;
if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
s = &psc_i2s->capture;
s = &psc_dma->capture;
else
s = &psc_i2s->playback;
s = &psc_dma->playback;
count = s->period_current_pt - s->period_start;
return bytes_to_frames(substream->runtime, count);
}
static struct snd_pcm_ops psc_i2s_pcm_ops = {
.open = psc_i2s_pcm_open,
.close = psc_i2s_pcm_close,
static struct snd_pcm_ops psc_dma_pcm_ops = {
.open = psc_dma_pcm_open,
.close = psc_dma_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.pointer = psc_i2s_pcm_pointer,
.pointer = psc_dma_pcm_pointer,
};
static u64 psc_i2s_pcm_dmamask = 0xffffffff;
static int psc_i2s_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
static u64 psc_dma_pcm_dmamask = 0xffffffff;
static int psc_dma_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
struct snd_pcm *pcm)
{
struct snd_soc_pcm_runtime *rtd = pcm->private_data;
size_t size = psc_i2s_pcm_hardware.buffer_bytes_max;
size_t size = psc_dma_pcm_hardware.buffer_bytes_max;
int rc = 0;
dev_dbg(rtd->socdev->dev, "psc_i2s_pcm_new(card=%p, dai=%p, pcm=%p)\n",
dev_dbg(rtd->socdev->dev, "psc_dma_pcm_new(card=%p, dai=%p, pcm=%p)\n",
card, dai, pcm);
if (!card->dev->dma_mask)
card->dev->dma_mask = &psc_i2s_pcm_dmamask;
card->dev->dma_mask = &psc_dma_pcm_dmamask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
@ -431,13 +431,13 @@ static int psc_i2s_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
return -ENOMEM;
}
static void psc_i2s_pcm_free(struct snd_pcm *pcm)
static void psc_dma_pcm_free(struct snd_pcm *pcm)
{
struct snd_soc_pcm_runtime *rtd = pcm->private_data;
struct snd_pcm_substream *substream;
int stream;
dev_dbg(rtd->socdev->dev, "psc_i2s_pcm_free(pcm=%p)\n", pcm);
dev_dbg(rtd->socdev->dev, "psc_dma_pcm_free(pcm=%p)\n", pcm);
for (stream = 0; stream < 2; stream++) {
substream = pcm->streams[stream].substream;
@ -449,10 +449,10 @@ static void psc_i2s_pcm_free(struct snd_pcm *pcm)
}
}
struct snd_soc_platform psc_i2s_pcm_soc_platform = {
struct snd_soc_platform psc_dma_pcm_soc_platform = {
.name = "mpc5200-psc-audio",
.pcm_ops = &psc_i2s_pcm_ops,
.pcm_new = &psc_i2s_pcm_new,
.pcm_free = &psc_i2s_pcm_free,
.pcm_ops = &psc_dma_pcm_ops,
.pcm_new = &psc_dma_pcm_new,
.pcm_free = &psc_dma_pcm_free,
};

26
sound/soc/fsl/mpc5200_dma.h
View File

@ -6,9 +6,9 @@
#define __SOUND_SOC_FSL_MPC5200_DMA_H__
/**
* psc_i2s_stream - Data specific to a single stream (playback or capture)
* psc_dma_stream - Data specific to a single stream (playback or capture)
* @active: flag indicating if the stream is active
* @psc_i2s: pointer back to parent psc_i2s data structure
* @psc_dma: pointer back to parent psc_dma data structure
* @bcom_task: bestcomm task structure
* @irq: irq number for bestcomm task
* @period_start: physical address of start of DMA region
@ -16,9 +16,9 @@
* @period_next_pt: physical address of next DMA buffer to enqueue
* @period_bytes: size of DMA period in bytes
*/
struct psc_i2s_stream {
struct psc_dma_stream {
int active;
struct psc_i2s *psc_i2s;
struct psc_dma *psc_dma;
struct bcom_task *bcom_task;
int irq;
struct snd_pcm_substream *stream;
@ -30,7 +30,7 @@ struct psc_i2s_stream {
};
/**
* psc_i2s - Private driver data
* psc_dma - Private driver data
* @name: short name for this device ("PSC0", "PSC1", etc)
* @psc_regs: pointer to the PSC's registers
* @fifo_regs: pointer to the PSC's FIFO registers
@ -42,7 +42,7 @@ struct psc_i2s_stream {
* @playback: Playback stream context data
* @capture: Capture stream context data
*/
struct psc_i2s {
struct psc_dma {
char name[32];
struct mpc52xx_psc __iomem *psc_regs;
struct mpc52xx_psc_fifo __iomem *fifo_regs;
@ -53,8 +53,8 @@ struct psc_i2s {
u32 sicr;
/* per-stream data */
struct psc_i2s_stream playback;
struct psc_i2s_stream capture;
struct psc_dma_stream playback;
struct psc_dma_stream capture;
/* Statistics */
struct {
@ -64,18 +64,18 @@ struct psc_i2s {
};
int psc_i2s_startup(struct snd_pcm_substream *substream,
int psc_dma_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
int psc_i2s_hw_free(struct snd_pcm_substream *substream,
int psc_dma_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
void psc_i2s_shutdown(struct snd_pcm_substream *substream,
void psc_dma_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai);
extern struct snd_soc_platform psc_i2s_pcm_soc_platform;
extern struct snd_soc_platform psc_dma_pcm_soc_platform;
#endif /* __SOUND_SOC_FSL_MPC5200_DMA_H__ */

160
sound/soc/fsl/mpc5200_psc_i2s.c
View File

@ -54,10 +54,10 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct psc_i2s *psc_i2s = rtd->dai->cpu_dai->private_data;
struct psc_dma *psc_dma = rtd->dai->cpu_dai->private_data;
u32 mode;
dev_dbg(psc_i2s->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
dev_dbg(psc_dma->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
" periods=%i buffer_size=%i buffer_bytes=%i\n",
__func__, substream, params_period_size(params),
params_period_bytes(params), params_periods(params),
@ -77,10 +77,10 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
mode = MPC52xx_PSC_SICR_SIM_CODEC_32;
break;
default:
dev_dbg(psc_i2s->dev, "invalid format\n");
dev_dbg(psc_dma->dev, "invalid format\n");
return -EINVAL;
}
out_be32(&psc_i2s->psc_regs->sicr, psc_i2s->sicr | mode);
out_be32(&psc_dma->psc_regs->sicr, psc_dma->sicr | mode);
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
@ -104,8 +104,8 @@ static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
static int psc_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
int clk_id, unsigned int freq, int dir)
{
struct psc_i2s *psc_i2s = cpu_dai->private_data;
dev_dbg(psc_i2s->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",
struct psc_dma *psc_dma = cpu_dai->private_data;
dev_dbg(psc_dma->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",
cpu_dai, dir);
return (dir == SND_SOC_CLOCK_IN) ? 0 : -EINVAL;
}
@ -123,8 +123,8 @@ static int psc_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
*/
static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
{
struct psc_i2s *psc_i2s = cpu_dai->private_data;
dev_dbg(psc_i2s->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",
struct psc_dma *psc_dma = cpu_dai->private_data;
dev_dbg(psc_dma->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",
cpu_dai, format);
return (format == SND_SOC_DAIFMT_I2S) ? 0 : -EINVAL;
}
@ -140,11 +140,11 @@ static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
* psc_i2s_dai_template: template CPU Digital Audio Interface
*/
static struct snd_soc_dai_ops psc_i2s_dai_ops = {
.startup = psc_i2s_startup,
.startup = psc_dma_startup,
.hw_params = psc_i2s_hw_params,
.hw_free = psc_i2s_hw_free,
.shutdown = psc_i2s_shutdown,
.trigger = psc_i2s_trigger,
.hw_free = psc_dma_hw_free,
.shutdown = psc_dma_shutdown,
.trigger = psc_dma_trigger,
.set_sysclk = psc_i2s_set_sysclk,
.set_fmt = psc_i2s_set_fmt,
};
@ -172,24 +172,24 @@ static struct snd_soc_dai psc_i2s_dai_template = {
static ssize_t psc_i2s_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
struct psc_dma *psc_dma = dev_get_drvdata(dev);
return sprintf(buf, "status=%.4x sicr=%.8x rfnum=%i rfstat=0x%.4x "
"tfnum=%i tfstat=0x%.4x\n",
in_be16(&psc_i2s->psc_regs->sr_csr.status),
in_be32(&psc_i2s->psc_regs->sicr),
in_be16(&psc_i2s->fifo_regs->rfnum) & 0x1ff,
in_be16(&psc_i2s->fifo_regs->rfstat),
in_be16(&psc_i2s->fifo_regs->tfnum) & 0x1ff,
in_be16(&psc_i2s->fifo_regs->tfstat));
in_be16(&psc_dma->psc_regs->sr_csr.status),
in_be32(&psc_dma->psc_regs->sicr),
in_be16(&psc_dma->fifo_regs->rfnum) & 0x1ff,
in_be16(&psc_dma->fifo_regs->rfstat),
in_be16(&psc_dma->fifo_regs->tfnum) & 0x1ff,
in_be16(&psc_dma->fifo_regs->tfstat));
}
static int *psc_i2s_get_stat_attr(struct psc_i2s *psc_i2s, const char *name)
static int *psc_i2s_get_stat_attr(struct psc_dma *psc_dma, const char *name)
{
if (strcmp(name, "playback_underrun") == 0)
return &psc_i2s->stats.underrun_count;
return &psc_dma->stats.underrun_count;
if (strcmp(name, "capture_overrun") == 0)
return &psc_i2s->stats.overrun_count;
return &psc_dma->stats.overrun_count;
return NULL;
}
@ -197,10 +197,10 @@ static int *psc_i2s_get_stat_attr(struct psc_i2s *psc_i2s, const char *name)
static ssize_t psc_i2s_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
struct psc_dma *psc_dma = dev_get_drvdata(dev);
int *attrib;
attrib = psc_i2s_get_stat_attr(psc_i2s, attr->attr.name);
attrib = psc_i2s_get_stat_attr(psc_dma, attr->attr.name);
if (!attrib)
return 0;
@ -212,10 +212,10 @@ static ssize_t psc_i2s_stat_store(struct device *dev,
const char *buf,
size_t count)
{
struct psc_i2s *psc_i2s = dev_get_drvdata(dev);
struct psc_dma *psc_dma = dev_get_drvdata(dev);
int *attrib;
attrib = psc_i2s_get_stat_attr(psc_i2s, attr->attr.name);
attrib = psc_i2s_get_stat_attr(psc_dma, attr->attr.name);
if (!attrib)
return 0;
@ -238,7 +238,7 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
const struct of_device_id *match)
{
phys_addr_t fifo;
struct psc_i2s *psc_i2s;
struct psc_dma *psc_dma;
struct resource res;
int size, psc_id, irq, rc;
const __be32 *prop;
@ -265,56 +265,56 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
}
/* Allocate and initialize the driver private data */
psc_i2s = kzalloc(sizeof *psc_i2s, GFP_KERNEL);
if (!psc_i2s) {
psc_dma = kzalloc(sizeof *psc_dma, GFP_KERNEL);
if (!psc_dma) {
iounmap(regs);
return -ENOMEM;
}
spin_lock_init(&psc_i2s->lock);
psc_i2s->irq = irq;
psc_i2s->psc_regs = regs;
psc_i2s->fifo_regs = regs + sizeof *psc_i2s->psc_regs;
psc_i2s->dev = &op->dev;
psc_i2s->playback.psc_i2s = psc_i2s;
psc_i2s->capture.psc_i2s = psc_i2s;
snprintf(psc_i2s->name, sizeof psc_i2s->name, "PSC%u", psc_id+1);
spin_lock_init(&psc_dma->lock);
psc_dma->irq = irq;
psc_dma->psc_regs = regs;
psc_dma->fifo_regs = regs + sizeof *psc_dma->psc_regs;
psc_dma->dev = &op->dev;
psc_dma->playback.psc_dma = psc_dma;
psc_dma->capture.psc_dma = psc_dma;
snprintf(psc_dma->name, sizeof psc_dma->name, "PSC%u", psc_id+1);
/* Fill out the CPU DAI structure */
memcpy(&psc_i2s->dai, &psc_i2s_dai_template, sizeof psc_i2s->dai);
psc_i2s->dai.private_data = psc_i2s;
psc_i2s->dai.name = psc_i2s->name;
psc_i2s->dai.id = psc_id;
memcpy(&psc_dma->dai, &psc_i2s_dai_template, sizeof psc_dma->dai);
psc_dma->dai.private_data = psc_dma;
psc_dma->dai.name = psc_dma->name;
psc_dma->dai.id = psc_id;
/* Find the address of the fifo data registers and setup the
* DMA tasks */
fifo = res.start + offsetof(struct mpc52xx_psc, buffer.buffer_32);
psc_i2s->capture.bcom_task =
psc_dma->capture.bcom_task =
bcom_psc_gen_bd_rx_init(psc_id, 10, fifo, 512);
psc_i2s->playback.bcom_task =
psc_dma->playback.bcom_task =
bcom_psc_gen_bd_tx_init(psc_id, 10, fifo);
if (!psc_i2s->capture.bcom_task ||
!psc_i2s->playback.bcom_task) {
if (!psc_dma->capture.bcom_task ||
!psc_dma->playback.bcom_task) {
dev_err(&op->dev, "Could not allocate bestcomm tasks\n");
iounmap(regs);
kfree(psc_i2s);
kfree(psc_dma);
return -ENODEV;
}
/* Disable all interrupts and reset the PSC */
out_be16(&psc_i2s->psc_regs->isr_imr.imr, 0);
out_8(&psc_i2s->psc_regs->command, 3 << 4); /* reset transmitter */
out_8(&psc_i2s->psc_regs->command, 2 << 4); /* reset receiver */
out_8(&psc_i2s->psc_regs->command, 1 << 4); /* reset mode */
out_8(&psc_i2s->psc_regs->command, 4 << 4); /* reset error */
out_be16(&psc_dma->psc_regs->isr_imr.imr, 0);
out_8(&psc_dma->psc_regs->command, 3 << 4); /* reset transmitter */
out_8(&psc_dma->psc_regs->command, 2 << 4); /* reset receiver */
out_8(&psc_dma->psc_regs->command, 1 << 4); /* reset mode */
out_8(&psc_dma->psc_regs->command, 4 << 4); /* reset error */
/* Configure the serial interface mode; defaulting to CODEC8 mode */
psc_i2s->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |
psc_dma->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |
MPC52xx_PSC_SICR_CLKPOL;
if (of_get_property(op->node, "fsl,cellslave", NULL))
psc_i2s->sicr |= MPC52xx_PSC_SICR_CELLSLAVE |
psc_dma->sicr |= MPC52xx_PSC_SICR_CELLSLAVE |
MPC52xx_PSC_SICR_GENCLK;
out_be32(&psc_i2s->psc_regs->sicr,
psc_i2s->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);
out_be32(&psc_dma->psc_regs->sicr,
psc_dma->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);
/* Check for the codec handle. If it is not present then we
* are done */
@ -325,54 +325,54 @@ static int __devinit psc_i2s_of_probe(struct of_device *op,
* First write: RxRdy (FIFO Alarm) generates rx FIFO irq
* Second write: register Normal mode for non loopback
*/
out_8(&psc_i2s->psc_regs->mode, 0);
out_8(&psc_i2s->psc_regs->mode, 0);
out_8(&psc_dma->psc_regs->mode, 0);
out_8(&psc_dma->psc_regs->mode, 0);
/* Set the TX and RX fifo alarm thresholds */
out_be16(&psc_i2s->fifo_regs->rfalarm, 0x100);
out_8(&psc_i2s->fifo_regs->rfcntl, 0x4);
out_be16(&psc_i2s->fifo_regs->tfalarm, 0x100);
out_8(&psc_i2s->fifo_regs->tfcntl, 0x7);
out_be16(&psc_dma->fifo_regs->rfalarm, 0x100);
out_8(&psc_dma->fifo_regs->rfcntl, 0x4);
out_be16(&psc_dma->fifo_regs->tfalarm, 0x100);
out_8(&psc_dma->fifo_regs->tfcntl, 0x7);
/* Lookup the IRQ numbers */
psc_i2s->playback.irq =
bcom_get_task_irq(psc_i2s->playback.bcom_task);
psc_i2s->capture.irq =
bcom_get_task_irq(psc_i2s->capture.bcom_task);
psc_dma->playback.irq =
bcom_get_task_irq(psc_dma->playback.bcom_task);
psc_dma->capture.irq =
bcom_get_task_irq(psc_dma->capture.bcom_task);
/* Save what we've done so it can be found again later */
dev_set_drvdata(&op->dev, psc_i2s);
dev_set_drvdata(&op->dev, psc_dma);
/* Register the SYSFS files */
rc = device_create_file(psc_i2s->dev, &dev_attr_status);
rc |= device_create_file(psc_i2s->dev, &dev_attr_capture_overrun);
rc |= device_create_file(psc_i2s->dev, &dev_attr_playback_underrun);
rc = device_create_file(psc_dma->dev, &dev_attr_status);
rc |= device_create_file(psc_dma->dev, &dev_attr_capture_overrun);
rc |= device_create_file(psc_dma->dev, &dev_attr_playback_underrun);
if (rc)
dev_info(psc_i2s->dev, "error creating sysfs files\n");
dev_info(psc_dma->dev, "error creating sysfs files\n");
snd_soc_register_platform(&psc_i2s_pcm_soc_platform);
snd_soc_register_platform(&psc_dma_pcm_soc_platform);
/* Tell the ASoC OF helpers about it */
of_snd_soc_register_platform(&psc_i2s_pcm_soc_platform, op->node,
&psc_i2s->dai);
of_snd_soc_register_platform(&psc_dma_pcm_soc_platform, op->node,
&psc_dma->dai);
return 0;
}
static int __devexit psc_i2s_of_remove(struct of_device *op)
{
struct psc_i2s *psc_i2s = dev_get_drvdata(&op->dev);
struct psc_dma *psc_dma = dev_get_drvdata(&op->dev);
dev_dbg(&op->dev, "psc_i2s_remove()\n");
snd_soc_unregister_platform(&psc_i2s_pcm_soc_platform);
snd_soc_unregister_platform(&psc_dma_pcm_soc_platform);
bcom_gen_bd_rx_release(psc_i2s->capture.bcom_task);
bcom_gen_bd_tx_release(psc_i2s->playback.bcom_task);
bcom_gen_bd_rx_release(psc_dma->capture.bcom_task);
bcom_gen_bd_tx_release(psc_dma->playback.bcom_task);
iounmap(psc_i2s->psc_regs);
iounmap(psc_i2s->fifo_regs);
kfree(psc_i2s);
iounmap(psc_dma->psc_regs);
iounmap(psc_dma->fifo_regs);
kfree(psc_dma);
dev_set_drvdata(&op->dev, NULL);
return 0;