Rename the functions in the mpc5200 DMA file from i2s to dma to reflect the file they are in.
Signed-off-by: Jon Smirl jonsmirl@gmail.com --- sound/soc/fsl/mpc5200_dma.c | 194 ++++++++++++++++++++------------------- sound/soc/fsl/mpc5200_dma.h | 26 +++-- sound/soc/fsl/mpc5200_psc_i2s.c | 160 ++++++++++++++++---------------- 3 files changed, 190 insertions(+), 190 deletions(-)
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index cccaff4..c82ef75 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -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(®s->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(®s->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(®s->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(®s->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(®s->command, 2 << 4); /* reset rx */ out_8(®s->command, 3 << 4); /* reset tx */ out_8(®s->command, 4 << 4); /* reset err */ @@ -244,7 +244,7 @@ int psc_i2s_trigger(struct snd_pcm_substream *substream, int cmd, } else { out_8(®s->command, 3 << 4); /* reset tx */ out_8(®s->command, 4 << 4); /* reset err */ - if (!psc_i2s->capture.active) + if (!psc_dma->capture.active) out_8(®s->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(®s->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, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE | @@ -329,80 +329,80 @@ 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;
@@ -430,13 +430,13 @@ 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; @@ -448,10 +448,10 @@ 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, };
diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h index 9a19e8a..a33232c 100644 --- a/sound/soc/fsl/mpc5200_dma.h +++ b/sound/soc/fsl/mpc5200_dma.h @@ -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__ */ diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c index 8974b53..12a7917 100644 --- a/sound/soc/fsl/mpc5200_psc_i2s.c +++ b/sound/soc/fsl/mpc5200_psc_i2s.c @@ -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;