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author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:44:51 +0900 |
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committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:15:10 +0200 |
commit | 10550bea44a8d7cec8a503c8f91fb6014e7849e9 (patch) | |
tree | 9542b85416d83cbbbb58635c479e5a8c8fa9b2dd /sound/firewire/amdtp.c | |
parent | 77d2a8a4f61c158ca34db167e5a9d57ceec0f0df (diff) | |
download | op-kernel-dev-10550bea44a8d7cec8a503c8f91fb6014e7849e9.zip op-kernel-dev-10550bea44a8d7cec8a503c8f91fb6014e7849e9.tar.gz |
ALSA: dice/firewire-lib: Keep dualwire mode but obsolete CIP_HI_DUALWIRE
In previous commit, AMDTP functionality in firewire-lib supports mapping
for PCM data channels. With this mapping, firewire-lib can obsolete
a flag, CIP_HI_DUALWIRE, but Dice driver still keeps dual wire mode.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/amdtp.c')
-rw-r--r-- | sound/firewire/amdtp.c | 151 |
1 files changed, 6 insertions, 145 deletions
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c index 9cf81b2..3475b76 100644 --- a/sound/firewire/amdtp.c +++ b/sound/firewire/amdtp.c @@ -145,14 +145,7 @@ void amdtp_stream_set_parameters(struct amdtp_stream *s, return; sfc_found: - s->dual_wire = (s->flags & CIP_HI_DUALWIRE) && sfc > CIP_SFC_96000; - if (s->dual_wire) { - sfc -= 2; - rate /= 2; - s->pcm_channels = pcm_channels * 2; - } else { - s->pcm_channels = pcm_channels; - } + s->pcm_channels = pcm_channels; s->sfc = sfc; s->data_block_quadlets = s->pcm_channels + midi_channels; s->midi_ports = midi_ports; @@ -191,18 +184,9 @@ static void amdtp_write_s16(struct amdtp_stream *s, static void amdtp_write_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm, __be32 *buffer, unsigned int frames); -static void amdtp_write_s16_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames); -static void amdtp_write_s32_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames); static void amdtp_read_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm, __be32 *buffer, unsigned int frames); -static void amdtp_read_s32_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames); /** * amdtp_stream_set_pcm_format - set the PCM format @@ -225,26 +209,16 @@ void amdtp_stream_set_pcm_format(struct amdtp_stream *s, /* fall through */ case SNDRV_PCM_FORMAT_S16: if (s->direction == AMDTP_OUT_STREAM) { - if (s->dual_wire) - s->transfer_samples = amdtp_write_s16_dualwire; - else - s->transfer_samples = amdtp_write_s16; + s->transfer_samples = amdtp_write_s16; break; } WARN_ON(1); /* fall through */ case SNDRV_PCM_FORMAT_S32: - if (s->direction == AMDTP_OUT_STREAM) { - if (s->dual_wire) - s->transfer_samples = amdtp_write_s32_dualwire; - else - s->transfer_samples = amdtp_write_s32; - } else { - if (s->dual_wire) - s->transfer_samples = amdtp_read_s32_dualwire; - else - s->transfer_samples = amdtp_read_s32; - } + if (s->direction == AMDTP_OUT_STREAM) + s->transfer_samples = amdtp_write_s32; + else + s->transfer_samples = amdtp_read_s32; break; } } @@ -393,68 +367,6 @@ static void amdtp_write_s16(struct amdtp_stream *s, } } -static void amdtp_write_s32_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames) -{ - struct snd_pcm_runtime *runtime = pcm->runtime; - unsigned int channels, remaining_frames, i, c; - const u32 *src; - - src = (void *)runtime->dma_area + - frames_to_bytes(runtime, s->pcm_buffer_pointer); - remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; - channels = s->pcm_channels / 2; - - for (i = 0; i < frames; ++i) { - for (c = 0; c < channels; ++c) { - buffer[s->pcm_positions[c] * 2] = - cpu_to_be32((*src >> 8) | 0x40000000); - src++; - } - buffer += 1; - for (c = 0; c < channels; ++c) { - buffer[s->pcm_positions[c] * 2] = - cpu_to_be32((*src >> 8) | 0x40000000); - src++; - } - buffer += s->data_block_quadlets - 1; - if (--remaining_frames == 0) - src = (void *)runtime->dma_area; - } -} - -static void amdtp_write_s16_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames) -{ - struct snd_pcm_runtime *runtime = pcm->runtime; - unsigned int channels, remaining_frames, i, c; - const u16 *src; - - src = (void *)runtime->dma_area + - frames_to_bytes(runtime, s->pcm_buffer_pointer); - remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; - channels = s->pcm_channels / 2; - - for (i = 0; i < frames; ++i) { - for (c = 0; c < channels; ++c) { - buffer[s->pcm_positions[c] * 2] = - cpu_to_be32((*src << 8) | 0x40000000); - src++; - } - buffer += 1; - for (c = 0; c < channels; ++c) { - buffer[s->pcm_positions[c] * 2] = - cpu_to_be32((*src << 8) | 0x40000000); - src++; - } - buffer += s->data_block_quadlets - 1; - if (--remaining_frames == 0) - src = (void *)runtime->dma_area; - } -} - static void amdtp_read_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm, __be32 *buffer, unsigned int frames) @@ -479,37 +391,6 @@ static void amdtp_read_s32(struct amdtp_stream *s, } } -static void amdtp_read_s32_dualwire(struct amdtp_stream *s, - struct snd_pcm_substream *pcm, - __be32 *buffer, unsigned int frames) -{ - struct snd_pcm_runtime *runtime = pcm->runtime; - unsigned int channels, remaining_frames, i, c; - u32 *dst; - - dst = (void *)runtime->dma_area + - frames_to_bytes(runtime, s->pcm_buffer_pointer); - remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; - channels = s->pcm_channels / 2; - - for (i = 0; i < frames; ++i) { - for (c = 0; c < channels; ++c) { - *dst = - be32_to_cpu(buffer[s->pcm_positions[c] * 2]) << 8; - dst++; - } - buffer += 1; - for (c = 0; c < channels; ++c) { - *dst = - be32_to_cpu(buffer[s->pcm_positions[c] * 2]) << 8; - dst++; - } - buffer += s->data_block_quadlets - 1; - if (--remaining_frames == 0) - dst = (void *)runtime->dma_area; - } -} - static void amdtp_fill_pcm_silence(struct amdtp_stream *s, __be32 *buffer, unsigned int frames) { @@ -522,21 +403,6 @@ static void amdtp_fill_pcm_silence(struct amdtp_stream *s, } } -static void amdtp_fill_pcm_silence_dualwire(struct amdtp_stream *s, - __be32 *buffer, unsigned int frames) -{ - unsigned int i, c, channels; - - channels = s->pcm_channels / 2; - for (i = 0; i < frames; ++i) { - for (c = 0; c < channels; ++c) { - buffer[s->pcm_positions[c] * 2] = - buffer[s->pcm_positions[c] * 2 + 1] = - cpu_to_be32(0x40000000); - } - buffer += s->data_block_quadlets; - } -} static void amdtp_fill_midi(struct amdtp_stream *s, __be32 *buffer, unsigned int frames) { @@ -582,9 +448,6 @@ static void update_pcm_pointers(struct amdtp_stream *s, unsigned int frames) { unsigned int ptr; - if (s->dual_wire) - frames *= 2; - ptr = s->pcm_buffer_pointer + frames; if (ptr >= pcm->runtime->buffer_size) ptr -= pcm->runtime->buffer_size; @@ -674,8 +537,6 @@ static void handle_out_packet(struct amdtp_stream *s, unsigned int syt) pcm = ACCESS_ONCE(s->pcm); if (pcm) s->transfer_samples(s, pcm, buffer, data_blocks); - else if (s->dual_wire) - amdtp_fill_pcm_silence_dualwire(s, buffer, data_blocks); else amdtp_fill_pcm_silence(s, buffer, data_blocks); if (s->midi_ports) |