diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sh/fsi.c | 76 |
1 files changed, 49 insertions, 27 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 9ab85936e65d..2b06402801ef 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -134,6 +134,9 @@ struct fsi_stream { int buff_len; int period_len; int period_num; + + int uerr_num; + int oerr_num; }; struct fsi_priv { @@ -326,17 +329,29 @@ static void fsi_stream_push(struct fsi_priv *fsi, io->buff_offset = 0; io->period_len = period_len; io->period_num = 0; + io->oerr_num = -1; /* ignore 1st err */ + io->uerr_num = -1; /* ignore 1st err */ } static void fsi_stream_pop(struct fsi_priv *fsi, int is_play) { struct fsi_stream *io = fsi_get_stream(fsi, is_play); + struct snd_soc_dai *dai = fsi_get_dai(io->substream); + + + if (io->oerr_num > 0) + dev_err(dai->dev, "over_run = %d\n", io->oerr_num); + + if (io->uerr_num > 0) + dev_err(dai->dev, "under_run = %d\n", io->uerr_num); io->substream = NULL; io->buff_len = 0; io->buff_offset = 0; io->period_len = 0; io->period_num = 0; + io->oerr_num = 0; + io->uerr_num = 0; } static int fsi_get_fifo_data_num(struct fsi_priv *fsi, int is_play) @@ -375,6 +390,27 @@ static int fsi_get_frame_width(struct fsi_priv *fsi, int is_play) return frames_to_bytes(runtime, 1) / io->chan_num; } +static void fsi_count_fifo_err(struct fsi_priv *fsi) +{ + u32 ostatus = fsi_reg_read(fsi, DOFF_ST); + u32 istatus = fsi_reg_read(fsi, DIFF_ST); + + if (ostatus & ERR_OVER) + fsi->playback.oerr_num++; + + if (ostatus & ERR_UNDER) + fsi->playback.uerr_num++; + + if (istatus & ERR_OVER) + fsi->capture.oerr_num++; + + if (istatus & ERR_UNDER) + fsi->capture.uerr_num++; + + fsi_reg_write(fsi, DOFF_ST, 0); + fsi_reg_write(fsi, DIFF_ST, 0); +} + /* * dma function */ @@ -574,7 +610,7 @@ static void fsi_soft_all_reset(struct fsi_master *master) mdelay(10); } -static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int stream) +static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) { struct snd_pcm_runtime *runtime; struct snd_pcm_substream *substream = NULL; @@ -667,37 +703,20 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int stream) /* update buff_offset */ io->buff_offset += fsi_num2offset(data_num, ch_width); - /* check fifo status */ - if (!startup) { - struct snd_soc_dai *dai = fsi_get_dai(substream); - u32 status = is_play ? - fsi_reg_read(fsi, DOFF_ST) : - fsi_reg_read(fsi, DIFF_ST); - - if (status & ERR_OVER) - dev_err(dai->dev, "over run\n"); - if (status & ERR_UNDER) - dev_err(dai->dev, "under run\n"); - } - - is_play ? - fsi_reg_write(fsi, DOFF_ST, 0) : - fsi_reg_write(fsi, DIFF_ST, 0); - if (over_period) snd_pcm_period_elapsed(substream); return 0; } -static int fsi_data_pop(struct fsi_priv *fsi, int startup) +static int fsi_data_pop(struct fsi_priv *fsi) { - return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_CAPTURE); + return fsi_fifo_data_ctrl(fsi, SNDRV_PCM_STREAM_CAPTURE); } -static int fsi_data_push(struct fsi_priv *fsi, int startup) +static int fsi_data_push(struct fsi_priv *fsi) { - return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_PLAYBACK); + return fsi_fifo_data_ctrl(fsi, SNDRV_PCM_STREAM_PLAYBACK); } static irqreturn_t fsi_interrupt(int irq, void *data) @@ -710,13 +729,16 @@ static irqreturn_t fsi_interrupt(int irq, void *data) fsi_master_mask_set(master, SOFT_RST, IR, IR); if (int_st & AB_IO(1, AO_SHIFT)) - fsi_data_push(&master->fsia, 0); + fsi_data_push(&master->fsia); if (int_st & AB_IO(1, BO_SHIFT)) - fsi_data_push(&master->fsib, 0); + fsi_data_push(&master->fsib); if (int_st & AB_IO(1, AI_SHIFT)) - fsi_data_pop(&master->fsia, 0); + fsi_data_pop(&master->fsia); if (int_st & AB_IO(1, BI_SHIFT)) - fsi_data_pop(&master->fsib, 0); + fsi_data_pop(&master->fsib); + + fsi_count_fifo_err(&master->fsia); + fsi_count_fifo_err(&master->fsib); fsi_irq_clear_status(&master->fsia); fsi_irq_clear_status(&master->fsib); @@ -855,7 +877,7 @@ static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd, fsi_stream_push(fsi, is_play, substream, frames_to_bytes(runtime, runtime->buffer_size), frames_to_bytes(runtime, runtime->period_size)); - ret = is_play ? fsi_data_push(fsi, 1) : fsi_data_pop(fsi, 1); + ret = is_play ? fsi_data_push(fsi) : fsi_data_pop(fsi); fsi_irq_enable(fsi, is_play); break; case SNDRV_PCM_TRIGGER_STOP: |