51 	void (*transfer_samples)(struct amdtp_stream *s,
117 int amdtp_dot_set_parameters(struct amdtp_stream *s, unsigned int rate,  in amdtp_dot_set_parameters()  argument
120 	struct amdtp_dot *p = s->protocol;  in amdtp_dot_set_parameters()
123 	if (amdtp_stream_running(s))  in amdtp_dot_set_parameters()
130 	err = amdtp_stream_set_parameters(s, rate, pcm_channels + 1);  in amdtp_dot_set_parameters()
134 	s->fdf = AMDTP_FDF_AM824 | s->sfc;  in amdtp_dot_set_parameters()
138 	if (s->direction == AMDTP_IN_STREAM)  in amdtp_dot_set_parameters()
149 	p->midi_fifo_limit = rate - MIDI_BYTES_PER_SECOND * s->syt_interval + 1;  in amdtp_dot_set_parameters()
154 static void write_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,  in write_pcm_s32()  argument
157 	struct amdtp_dot *p = s->protocol;  in write_pcm_s32()
164 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in write_pcm_s32()
165 	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;  in write_pcm_s32()
174 		buffer += s->data_block_quadlets;  in write_pcm_s32()
180 static void write_pcm_s16(struct amdtp_stream *s, struct snd_pcm_substream *pcm,  in write_pcm_s16()  argument
183 	struct amdtp_dot *p = s->protocol;  in write_pcm_s16()
190 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in write_pcm_s16()
191 	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;  in write_pcm_s16()
200 		buffer += s->data_block_quadlets;  in write_pcm_s16()
206 static void read_pcm_s32(struct amdtp_stream *s, struct snd_pcm_substream *pcm,  in read_pcm_s32()  argument
209 	struct amdtp_dot *p = s->protocol;  in read_pcm_s32()
216 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in read_pcm_s32()
217 	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;  in read_pcm_s32()
225 		buffer += s->data_block_quadlets;  in read_pcm_s32()
231 static void write_pcm_silence(struct amdtp_stream *s, __be32 *buffer,  in write_pcm_silence()  argument
234 	struct amdtp_dot *p = s->protocol;  in write_pcm_silence()
243 		buffer += s->data_block_quadlets;  in write_pcm_silence()
247 static bool midi_ratelimit_per_packet(struct amdtp_stream *s, unsigned int port)  in midi_ratelimit_per_packet()  argument
249 	struct amdtp_dot *p = s->protocol;  in midi_ratelimit_per_packet()
256 	used -= MIDI_BYTES_PER_SECOND * s->syt_interval;  in midi_ratelimit_per_packet()
263 static inline void midi_use_bytes(struct amdtp_stream *s,  in midi_use_bytes()  argument
266 	struct amdtp_dot *p = s->protocol;  in midi_use_bytes()
268 	p->midi_fifo_used[port] += amdtp_rate_table[s->sfc] * count;  in midi_use_bytes()
271 static void write_midi_messages(struct amdtp_stream *s, __be32 *buffer,  in write_midi_messages()  argument
274 	struct amdtp_dot *p = s->protocol;  in write_midi_messages()
280 		port = (s->data_block_counter + f) % 8;  in write_midi_messages()
285 		    midi_ratelimit_per_packet(s, port) &&  in write_midi_messages()
291 			midi_use_bytes(s, port, len);  in write_midi_messages()
299 		buffer += s->data_block_quadlets;  in write_midi_messages()
303 static void read_midi_messages(struct amdtp_stream *s, __be32 *buffer,  in read_midi_messages()  argument
306 	struct amdtp_dot *p = s->protocol;  in read_midi_messages()
318 		buffer += s->data_block_quadlets;  in read_midi_messages()
322 int amdtp_dot_add_pcm_hw_constraints(struct amdtp_stream *s,  in amdtp_dot_add_pcm_hw_constraints()  argument
332 	return amdtp_stream_add_pcm_hw_constraints(s, runtime);  in amdtp_dot_add_pcm_hw_constraints()
335 void amdtp_dot_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format)  in amdtp_dot_set_pcm_format()  argument
337 	struct amdtp_dot *p = s->protocol;  in amdtp_dot_set_pcm_format()
339 	if (WARN_ON(amdtp_stream_pcm_running(s)))  in amdtp_dot_set_pcm_format()
347 		if (s->direction == AMDTP_OUT_STREAM) {  in amdtp_dot_set_pcm_format()
354 		if (s->direction == AMDTP_OUT_STREAM)  in amdtp_dot_set_pcm_format()
362 void amdtp_dot_midi_trigger(struct amdtp_stream *s, unsigned int port,  in amdtp_dot_midi_trigger()  argument
365 	struct amdtp_dot *p = s->protocol;  in amdtp_dot_midi_trigger()
371 static unsigned int process_tx_data_blocks(struct amdtp_stream *s,  in process_tx_data_blocks()  argument
376 	struct amdtp_dot *p = (struct amdtp_dot *)s->protocol;  in process_tx_data_blocks()
380 	pcm = ACCESS_ONCE(s->pcm);  in process_tx_data_blocks()
382 		p->transfer_samples(s, pcm, buffer, data_blocks);  in process_tx_data_blocks()
388 	read_midi_messages(s, buffer, data_blocks);  in process_tx_data_blocks()
393 static unsigned int process_rx_data_blocks(struct amdtp_stream *s,  in process_rx_data_blocks()  argument
398 	struct amdtp_dot *p = (struct amdtp_dot *)s->protocol;  in process_rx_data_blocks()
402 	pcm = ACCESS_ONCE(s->pcm);  in process_rx_data_blocks()
404 		p->transfer_samples(s, pcm, buffer, data_blocks);  in process_rx_data_blocks()
407 		write_pcm_silence(s, buffer, data_blocks);  in process_rx_data_blocks()
411 	write_midi_messages(s, buffer, data_blocks);  in process_rx_data_blocks()
416 int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,  in amdtp_dot_init()  argument
431 	return amdtp_stream_init(s, unit, dir, flags, CIP_FMT_AM,  in amdtp_dot_init()
435 void amdtp_dot_reset(struct amdtp_stream *s)  in amdtp_dot_reset()  argument
437 	struct amdtp_dot *p = s->protocol;  in amdtp_dot_reset()