diff options
| -rw-r--r-- | sound/soc/sh/fsi.c | 152 |
1 files changed, 94 insertions, 58 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index dfc04bc2809e..507e709f2807 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -113,10 +113,8 @@ * struct */ -struct fsi_priv { - void __iomem *base; +struct fsi_stream { struct snd_pcm_substream *substream; - struct fsi_master *master; int fifo_max_num; int chan_num; @@ -125,6 +123,14 @@ struct fsi_priv { int buff_len; int period_len; int period_num; +}; + +struct fsi_priv { + void __iomem *base; + struct fsi_master *master; + + struct fsi_stream playback; + struct fsi_stream capture; u32 mst_ctrl; }; @@ -294,9 +300,20 @@ static u32 fsi_get_info_flags(struct fsi_priv *fsi) master->info->portb_flags; } +static inline int fsi_stream_is_play(int stream) +{ + return stream == SNDRV_PCM_STREAM_PLAYBACK; +} + static inline int fsi_is_play(struct snd_pcm_substream *substream) { - return substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + return fsi_stream_is_play(substream->stream); +} + +static inline struct fsi_stream *fsi_get_stream(struct fsi_priv *fsi, + int is_play) +{ + return is_play ? &fsi->playback : &fsi->capture; } static int fsi_is_master_mode(struct fsi_priv *fsi, int is_play) @@ -328,35 +345,41 @@ static u32 fsi_get_port_shift(struct fsi_priv *fsi, int is_play) } static void fsi_stream_push(struct fsi_priv *fsi, + int is_play, struct snd_pcm_substream *substream, u32 buffer_len, u32 period_len) { - fsi->substream = substream; - fsi->buff_len = buffer_len; - fsi->buff_offset = 0; - fsi->period_len = period_len; - fsi->period_num = 0; + struct fsi_stream *io = fsi_get_stream(fsi, is_play); + + io->substream = substream; + io->buff_len = buffer_len; + io->buff_offset = 0; + io->period_len = period_len; + io->period_num = 0; } -static void fsi_stream_pop(struct fsi_priv *fsi) +static void fsi_stream_pop(struct fsi_priv *fsi, int is_play) { - fsi->substream = NULL; - fsi->buff_len = 0; - fsi->buff_offset = 0; - fsi->period_len = 0; - fsi->period_num = 0; + struct fsi_stream *io = fsi_get_stream(fsi, is_play); + + io->substream = NULL; + io->buff_len = 0; + io->buff_offset = 0; + io->period_len = 0; + io->period_num = 0; } static int fsi_get_fifo_data_num(struct fsi_priv *fsi, int is_play) { u32 status; u32 reg = is_play ? DOFF_ST : DIFF_ST; + struct fsi_stream *io = fsi_get_stream(fsi, is_play); int data_num; status = fsi_reg_read(fsi, reg); data_num = 0x1ff & (status >> 8); - data_num *= fsi->chan_num; + data_num *= io->chan_num; return data_num; } @@ -372,21 +395,25 @@ static int fsi_num2len(int num, int width) return num * width; } -static int fsi_get_frame_width(struct fsi_priv *fsi) +static int fsi_get_frame_width(struct fsi_priv *fsi, int is_play) { - struct snd_pcm_substream *substream = fsi->substream; + struct fsi_stream *io = fsi_get_stream(fsi, is_play); + struct snd_pcm_substream *substream = io->substream; struct snd_pcm_runtime *runtime = substream->runtime; - return frames_to_bytes(runtime, 1) / fsi->chan_num; + return frames_to_bytes(runtime, 1) / io->chan_num; } /* * dma function */ -static u8 *fsi_dma_get_area(struct fsi_priv *fsi) +static u8 *fsi_dma_get_area(struct fsi_priv *fsi, int stream) { - return fsi->substream->runtime->dma_area + fsi->buff_offset; + int is_play = fsi_stream_is_play(stream); + struct fsi_stream *io = fsi_get_stream(fsi, is_play); + + return io->substream->runtime->dma_area + io->buff_offset; } static void fsi_dma_soft_push16(struct fsi_priv *fsi, int num) @@ -394,7 +421,7 @@ static void fsi_dma_soft_push16(struct fsi_priv *fsi, int num) u16 *start; int i; - start = (u16 *)fsi_dma_get_area(fsi); + start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); for (i = 0; i < num; i++) fsi_reg_write(fsi, DODT, ((u32)*(start + i) << 8)); @@ -405,7 +432,8 @@ static void fsi_dma_soft_pop16(struct fsi_priv *fsi, int num) u16 *start; int i; - start = (u16 *)fsi_dma_get_area(fsi); + start = (u16 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); + for (i = 0; i < num; i++) *(start + i) = (u16)(fsi_reg_read(fsi, DIDT) >> 8); @@ -416,7 +444,8 @@ static void fsi_dma_soft_push32(struct fsi_priv *fsi, int num) u32 *start; int i; - start = (u32 *)fsi_dma_get_area(fsi); + start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_PLAYBACK); + for (i = 0; i < num; i++) fsi_reg_write(fsi, DODT, *(start + i)); @@ -427,7 +456,7 @@ static void fsi_dma_soft_pop32(struct fsi_priv *fsi, int num) u32 *start; int i; - start = (u32 *)fsi_dma_get_area(fsi); + start = (u32 *)fsi_dma_get_area(fsi, SNDRV_PCM_STREAM_CAPTURE); for (i = 0; i < num; i++) *(start + i) = fsi_reg_read(fsi, DIDT); @@ -518,14 +547,15 @@ static void fsi_fifo_init(struct fsi_priv *fsi, struct snd_soc_dai *dai) { struct fsi_master *master = fsi_get_master(fsi); + struct fsi_stream *io = fsi_get_stream(fsi, is_play); u32 ctrl, shift, i; /* get on-chip RAM capacity */ shift = fsi_master_read(master, FIFO_SZ); shift >>= fsi_get_port_shift(fsi, is_play); shift &= FIFO_SZ_MASK; - fsi->fifo_max_num = 256 << shift; - dev_dbg(dai->dev, "fifo = %d words\n", fsi->fifo_max_num); + io->fifo_max_num = 256 << shift; + dev_dbg(dai->dev, "fifo = %d words\n", io->fifo_max_num); /* * The maximum number of sample data varies depending @@ -546,10 +576,10 @@ static void fsi_fifo_init(struct fsi_priv *fsi, * 7 channels: 32 ( 32 x 7 = 224) * 8 channels: 32 ( 32 x 8 = 256) */ - for (i = 1; i < fsi->chan_num; i <<= 1) - fsi->fifo_max_num >>= 1; + for (i = 1; i < io->chan_num; i <<= 1) + io->fifo_max_num >>= 1; dev_dbg(dai->dev, "%d channel %d store\n", - fsi->chan_num, fsi->fifo_max_num); + io->chan_num, io->fifo_max_num); ctrl = is_play ? DOFF_CTL : DIFF_CTL; @@ -572,10 +602,12 @@ 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 is_play) +static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int stream) { struct snd_pcm_runtime *runtime; struct snd_pcm_substream *substream = NULL; + int is_play = fsi_stream_is_play(stream); + struct fsi_stream *io = fsi_get_stream(fsi, is_play); u32 status_reg = is_play ? DOFF_ST : DIFF_ST; int data_residue_num; int data_num; @@ -585,32 +617,32 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play) void (*fn)(struct fsi_priv *fsi, int size); if (!fsi || - !fsi->substream || - !fsi->substream->runtime) + !io->substream || + !io->substream->runtime) return -EINVAL; over_period = 0; - substream = fsi->substream; + substream = io->substream; runtime = substream->runtime; /* FSI FIFO has limit. * So, this driver can not send periods data at a time */ - if (fsi->buff_offset >= - fsi_num2offset(fsi->period_num + 1, fsi->period_len)) { + if (io->buff_offset >= + fsi_num2offset(io->period_num + 1, io->period_len)) { over_period = 1; - fsi->period_num = (fsi->period_num + 1) % runtime->periods; + io->period_num = (io->period_num + 1) % runtime->periods; - if (0 == fsi->period_num) - fsi->buff_offset = 0; + if (0 == io->period_num) + io->buff_offset = 0; } /* get 1 channel data width */ - ch_width = fsi_get_frame_width(fsi); + ch_width = fsi_get_frame_width(fsi, is_play); /* get residue data number of alsa */ - data_residue_num = fsi_len2num(fsi->buff_len - fsi->buff_offset, + data_residue_num = fsi_len2num(io->buff_len - io->buff_offset, ch_width); if (is_play) { @@ -620,7 +652,7 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play) * data_num_max : number of FSI fifo free space * data_num : number of ALSA residue data */ - data_num_max = fsi->fifo_max_num * fsi->chan_num; + data_num_max = io->fifo_max_num * io->chan_num; data_num_max -= fsi_get_fifo_data_num(fsi, is_play); data_num = data_residue_num; @@ -662,7 +694,7 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play) fn(fsi, data_num); /* update buff_offset */ - fsi->buff_offset += fsi_num2offset(data_num, ch_width); + io->buff_offset += fsi_num2offset(data_num, ch_width); /* check fifo status */ if (!startup) { @@ -687,12 +719,12 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play) static int fsi_data_pop(struct fsi_priv *fsi, int startup) { - return fsi_fifo_data_ctrl(fsi, startup, 0); + return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_CAPTURE); } static int fsi_data_push(struct fsi_priv *fsi, int startup) { - return fsi_fifo_data_ctrl(fsi, startup, 1); + return fsi_fifo_data_ctrl(fsi, startup, SNDRV_PCM_STREAM_PLAYBACK); } static irqreturn_t fsi_interrupt(int irq, void *data) @@ -726,14 +758,17 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct fsi_priv *fsi = fsi_get_priv(substream); - u32 flags = fsi_get_info_flags(fsi); struct fsi_master *master = fsi_get_master(fsi); + struct fsi_stream *io; + u32 flags = fsi_get_info_flags(fsi); u32 fmt; u32 reg; u32 data; int is_play = fsi_is_play(substream); int is_master; + io = fsi_get_stream(fsi, is_play); + pm_runtime_get_sync(dai->dev); /* CKG1 */ @@ -764,29 +799,29 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream, switch (fmt) { case SH_FSI_FMT_MONO: data = CR_MONO; - fsi->chan_num = 1; + io->chan_num = 1; break; case SH_FSI_FMT_MONO_DELAY: data = CR_MONO_D; - fsi->chan_num = 1; + io->chan_num = 1; break; case SH_FSI_FMT_PCM: data = CR_PCM; - fsi->chan_num = 2; + io->chan_num = 2; break; case SH_FSI_FMT_I2S: data = CR_I2S; - fsi->chan_num = 2; + io->chan_num = 2; break; case SH_FSI_FMT_TDM: - fsi->chan_num = is_play ? + io->chan_num = is_play ? SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags); - data = CR_TDM | (fsi->chan_num - 1); + data = CR_TDM | (io->chan_num - 1); break; case SH_FSI_FMT_TDM_DELAY: - fsi->chan_num = is_play ? + io->chan_num = is_play ? SH_FSI_GET_CH_O(flags) : SH_FSI_GET_CH_I(flags); - data = CR_TDM_D | (fsi->chan_num - 1); + data = CR_TDM_D | (io->chan_num - 1); break; case SH_FSI_FMT_SPDIF: if (master->core->ver < 2) { @@ -794,7 +829,7 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream, return -EINVAL; } data = CR_SPDIF; - fsi->chan_num = 2; + io->chan_num = 2; fsi_spdif_clk_ctrl(fsi, 1); fsi_reg_mask_set(fsi, OUT_SEL, 0x0010, 0x0010); break; @@ -836,14 +871,14 @@ static int fsi_dai_trigger(struct snd_pcm_substream *substream, int cmd, switch (cmd) { case SNDRV_PCM_TRIGGER_START: - fsi_stream_push(fsi, substream, + 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); break; case SNDRV_PCM_TRIGGER_STOP: fsi_irq_disable(fsi, is_play); - fsi_stream_pop(fsi); + fsi_stream_pop(fsi, is_play); break; } @@ -991,9 +1026,10 @@ static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct fsi_priv *fsi = fsi_get_priv(substream); + struct fsi_stream *io = fsi_get_stream(fsi, fsi_is_play(substream)); long location; - location = (fsi->buff_offset - 1); + location = (io->buff_offset - 1); if (location < 0) location = 0; |