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