static int idma_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct idma_ctrl *prtd = substream->runtime->private_data;
u32 mod = readl(idma.regs + I2SMOD);
u32 ahb = readl(idma.regs + I2SAHB);
ahb |= (AHB_DMARLD | AHB_INTMASK);
mod |= MOD_TXS_IDMA;
writel(ahb, idma.regs + I2SAHB);
writel(mod, idma.regs + I2SMOD);
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
prtd->start = prtd->pos = runtime->dma_addr;
prtd->period = params_periods(params);
prtd->periodsz = params_period_bytes(params);
prtd->end = runtime->dma_addr + runtime->dma_bytes;
idma_setcallbk(substream, idma_done);
return 0;
}
static int idma_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct idma_ctrl *prtd = substream->runtime->private_data;
u32 ahb = readl(idma.regs + I2SAHB);
pr_debug("Entered %s\n", __func__);
ahb |= (AHB_DMARLD | AHB_INTMASK);
writel(ahb, idma.regs + I2SAHB);
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
memset(runtime->dma_area, 0, runtime->dma_bytes);
prtd->start = prtd->pos = runtime->dma_addr;
prtd->period = params_periods(params);
prtd->periodsz = params_period_bytes(params);
prtd->end = prtd->start + runtime->dma_bytes;
idma_setcallbk(substream, idma_done);
#ifndef PRODUCT_SHIP
pr_info("I:%s:DmaAddr=@%x Total=%d PrdSz=%d #Prds=%d dma_area=0x%x\n",
(substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? "P" : "C",
prtd->start, runtime->dma_bytes, prtd->periodsz,
prtd->period, (unsigned int)runtime->dma_area);
#endif
return 0;
}
