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-rw-r--r--sound/firewire/fireface/amdtp-ff.c105
-rw-r--r--sound/firewire/fireface/ff-stream.c96
-rw-r--r--sound/firewire/fireface/ff.h2
3 files changed, 116 insertions, 87 deletions
diff --git a/sound/firewire/fireface/amdtp-ff.c b/sound/firewire/fireface/amdtp-ff.c
index 2938489740b4..119c0076b17a 100644
--- a/sound/firewire/fireface/amdtp-ff.c
+++ b/sound/firewire/fireface/amdtp-ff.c
@@ -27,19 +27,24 @@ int amdtp_ff_set_parameters(struct amdtp_stream *s, unsigned int rate,
return amdtp_stream_set_parameters(s, rate, data_channels);
}
-static void write_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
const u32 *src;
+ int i, c;
+
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
- channels = p->pcm_channels;
src = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -52,19 +57,24 @@ static void write_pcm_s32(struct amdtp_stream *s,
}
}
-static void read_pcm_s32(struct amdtp_stream *s,
- struct snd_pcm_substream *pcm,
- __le32 *buffer, unsigned int frames)
+static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,
+ __le32 *buffer, unsigned int frames,
+ unsigned int pcm_frames)
{
struct amdtp_ff *p = s->protocol;
+ unsigned int channels = p->pcm_channels;
struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, i, c;
+ unsigned int pcm_buffer_pointer;
+ int remaining_frames;
u32 *dst;
+ int i, c;
+
+ pcm_buffer_pointer = s->pcm_buffer_pointer + pcm_frames;
+ pcm_buffer_pointer %= runtime->buffer_size;
- channels = p->pcm_channels;
dst = (void *)runtime->dma_area +
- frames_to_bytes(runtime, s->pcm_buffer_pointer);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
+ frames_to_bytes(runtime, pcm_buffer_pointer);
+ remaining_frames = runtime->buffer_size - pcm_buffer_pointer;
for (i = 0; i < frames; ++i) {
for (c = 0; c < channels; ++c) {
@@ -102,38 +112,47 @@ int amdtp_ff_add_pcm_hw_constraints(struct amdtp_stream *s,
return amdtp_stream_add_pcm_hw_constraints(s, runtime);
}
-static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_it_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
-
- if (pcm) {
- write_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- write_pcm_silence(s, (__le32 *)buffer, data_blocks);
- pcm_frames = 0;
+ unsigned int pcm_frames = 0;
+ int i;
+
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ write_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ } else {
+ write_pcm_silence(s, buf, data_blocks);
+ }
}
return pcm_frames;
}
-static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
- __be32 *buffer,
- unsigned int data_blocks,
- unsigned int *syt)
+static unsigned int process_ir_ctx_payloads(struct amdtp_stream *s,
+ const struct pkt_desc *descs,
+ unsigned int packets,
+ struct snd_pcm_substream *pcm)
{
- struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
- unsigned int pcm_frames;
-
- if (pcm) {
- read_pcm_s32(s, pcm, (__le32 *)buffer, data_blocks);
- pcm_frames = data_blocks;
- } else {
- pcm_frames = 0;
+ unsigned int pcm_frames = 0;
+ int i;
+
+ for (i = 0; i < packets; ++i) {
+ const struct pkt_desc *desc = descs + i;
+ __le32 *buf = (__le32 *)desc->ctx_payload;
+ unsigned int data_blocks = desc->data_blocks;
+
+ if (pcm) {
+ read_pcm_s32(s, pcm, buf, data_blocks, pcm_frames);
+ pcm_frames += data_blocks;
+ }
}
return pcm_frames;
@@ -142,13 +161,13 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
int amdtp_ff_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir)
{
- amdtp_stream_process_data_blocks_t process_data_blocks;
+ amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
if (dir == AMDTP_IN_STREAM)
- process_data_blocks = process_tx_data_blocks;
+ process_ctx_payloads = process_ir_ctx_payloads;
else
- process_data_blocks = process_rx_data_blocks;
+ process_ctx_payloads = process_it_ctx_payloads;
return amdtp_stream_init(s, unit, dir, CIP_NO_HEADER, 0,
- process_data_blocks, sizeof(struct amdtp_ff));
+ process_ctx_payloads, sizeof(struct amdtp_ff));
}
diff --git a/sound/firewire/fireface/ff-stream.c b/sound/firewire/fireface/ff-stream.c
index 4208b8004d1a..e8e6f9fd6433 100644
--- a/sound/firewire/fireface/ff-stream.c
+++ b/sound/firewire/fireface/ff-stream.c
@@ -32,61 +32,65 @@ int snd_ff_stream_get_multiplier_mode(enum cip_sfc sfc,
static inline void finish_session(struct snd_ff *ff)
{
- amdtp_stream_stop(&ff->tx_stream);
- amdtp_stream_stop(&ff->rx_stream);
-
ff->spec->protocol->finish_session(ff);
ff->spec->protocol->switch_fetching_mode(ff, false);
}
-static int init_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static int init_stream(struct snd_ff *ff, struct amdtp_stream *s)
{
- int err;
struct fw_iso_resources *resources;
- struct amdtp_stream *stream;
+ enum amdtp_stream_direction dir;
+ int err;
- if (dir == AMDTP_IN_STREAM) {
+ if (s == &ff->tx_stream) {
resources = &ff->tx_resources;
- stream = &ff->tx_stream;
+ dir = AMDTP_IN_STREAM;
} else {
resources = &ff->rx_resources;
- stream = &ff->rx_stream;
+ dir = AMDTP_OUT_STREAM;
}
err = fw_iso_resources_init(resources, ff->unit);
if (err < 0)
return err;
- err = amdtp_ff_init(stream, ff->unit, dir);
+ err = amdtp_ff_init(s, ff->unit, dir);
if (err < 0)
fw_iso_resources_destroy(resources);
return err;
}
-static void destroy_stream(struct snd_ff *ff, enum amdtp_stream_direction dir)
+static void destroy_stream(struct snd_ff *ff, struct amdtp_stream *s)
{
- if (dir == AMDTP_IN_STREAM) {
- amdtp_stream_destroy(&ff->tx_stream);
+ amdtp_stream_destroy(s);
+
+ if (s == &ff->tx_stream)
fw_iso_resources_destroy(&ff->tx_resources);
- } else {
- amdtp_stream_destroy(&ff->rx_stream);
+ else
fw_iso_resources_destroy(&ff->rx_resources);
- }
}
int snd_ff_stream_init_duplex(struct snd_ff *ff)
{
int err;
- err = init_stream(ff, AMDTP_OUT_STREAM);
+ err = init_stream(ff, &ff->rx_stream);
if (err < 0)
- goto end;
+ return err;
+
+ err = init_stream(ff, &ff->tx_stream);
+ if (err < 0) {
+ destroy_stream(ff, &ff->rx_stream);
+ return err;
+ }
+
+ err = amdtp_domain_init(&ff->domain);
+ if (err < 0) {
+ destroy_stream(ff, &ff->rx_stream);
+ destroy_stream(ff, &ff->tx_stream);
+ }
- err = init_stream(ff, AMDTP_IN_STREAM);
- if (err < 0)
- destroy_stream(ff, AMDTP_OUT_STREAM);
-end:
return err;
}
@@ -96,8 +100,10 @@ end:
*/
void snd_ff_stream_destroy_duplex(struct snd_ff *ff)
{
- destroy_stream(ff, AMDTP_IN_STREAM);
- destroy_stream(ff, AMDTP_OUT_STREAM);
+ amdtp_domain_destroy(&ff->domain);
+
+ destroy_stream(ff, &ff->rx_stream);
+ destroy_stream(ff, &ff->tx_stream);
}
int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
@@ -114,6 +120,7 @@ int snd_ff_stream_reserve_duplex(struct snd_ff *ff, unsigned int rate)
enum snd_ff_stream_mode mode;
int i;
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
fw_iso_resources_free(&ff->tx_resources);
@@ -156,51 +163,52 @@ int snd_ff_stream_start_duplex(struct snd_ff *ff, unsigned int rate)
return 0;
if (amdtp_streaming_error(&ff->tx_stream) ||
- amdtp_streaming_error(&ff->rx_stream))
+ amdtp_streaming_error(&ff->rx_stream)) {
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
+ }
/*
* Regardless of current source of clock signal, drivers transfer some
* packets. Then, the device transfers packets.
*/
if (!amdtp_stream_running(&ff->rx_stream)) {
+ int spd = fw_parent_device(ff->unit)->max_speed;
+
err = ff->spec->protocol->begin_session(ff, rate);
if (err < 0)
goto error;
- err = amdtp_stream_start(&ff->rx_stream,
- ff->rx_resources.channel,
- fw_parent_device(ff->unit)->max_speed);
+ err = amdtp_domain_add_stream(&ff->domain, &ff->rx_stream,
+ ff->rx_resources.channel, spd);
if (err < 0)
goto error;
- if (!amdtp_stream_wait_callback(&ff->rx_stream,
- CALLBACK_TIMEOUT_MS)) {
- err = -ETIMEDOUT;
- goto error;
- }
-
- err = ff->spec->protocol->switch_fetching_mode(ff, true);
+ err = amdtp_domain_add_stream(&ff->domain, &ff->tx_stream,
+ ff->tx_resources.channel, spd);
if (err < 0)
goto error;
- }
- if (!amdtp_stream_running(&ff->tx_stream)) {
- err = amdtp_stream_start(&ff->tx_stream,
- ff->tx_resources.channel,
- fw_parent_device(ff->unit)->max_speed);
+ err = amdtp_domain_start(&ff->domain);
if (err < 0)
goto error;
- if (!amdtp_stream_wait_callback(&ff->tx_stream,
+ if (!amdtp_stream_wait_callback(&ff->rx_stream,
+ CALLBACK_TIMEOUT_MS) ||
+ !amdtp_stream_wait_callback(&ff->tx_stream,
CALLBACK_TIMEOUT_MS)) {
err = -ETIMEDOUT;
goto error;
}
+
+ err = ff->spec->protocol->switch_fetching_mode(ff, true);
+ if (err < 0)
+ goto error;
}
return 0;
error:
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
return err;
@@ -209,6 +217,7 @@ error:
void snd_ff_stream_stop_duplex(struct snd_ff *ff)
{
if (ff->substreams_counter == 0) {
+ amdtp_domain_stop(&ff->domain);
finish_session(ff);
fw_iso_resources_free(&ff->tx_resources);
@@ -218,12 +227,11 @@ void snd_ff_stream_stop_duplex(struct snd_ff *ff)
void snd_ff_stream_update_duplex(struct snd_ff *ff)
{
+ amdtp_domain_stop(&ff->domain);
+
// The device discontinue to transfer packets.
amdtp_stream_pcm_abort(&ff->tx_stream);
- amdtp_stream_stop(&ff->tx_stream);
-
amdtp_stream_pcm_abort(&ff->rx_stream);
- amdtp_stream_stop(&ff->rx_stream);
}
void snd_ff_stream_lock_changed(struct snd_ff *ff)
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index 36dd0c75b9f7..b4c22ca6079e 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -91,6 +91,8 @@ struct snd_ff {
int dev_lock_count;
bool dev_lock_changed;
wait_queue_head_t hwdep_wait;
+
+ struct amdtp_domain domain;
};
enum snd_ff_clock_src {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.