41 	void (*transfer_samples)(struct amdtp_stream *s,
60 int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate,  in amdtp_am824_set_parameters()  argument
65 	struct amdtp_am824 *p = s->protocol;  in amdtp_am824_set_parameters()
70 	if (amdtp_stream_running(s))  in amdtp_am824_set_parameters()
80 	if (WARN_ON(amdtp_stream_running(s)) ||  in amdtp_am824_set_parameters()
85 	err = amdtp_stream_set_parameters(s, rate,  in amdtp_am824_set_parameters()
90 	s->fdf = AMDTP_FDF_AM824 | s->sfc;  in amdtp_am824_set_parameters()
116 	p->midi_fifo_limit = rate - MIDI_BYTES_PER_SECOND * s->syt_interval + 1;  in amdtp_am824_set_parameters()
129 void amdtp_am824_set_pcm_position(struct amdtp_stream *s, unsigned int index,  in amdtp_am824_set_pcm_position()  argument
132 	struct amdtp_am824 *p = s->protocol;  in amdtp_am824_set_pcm_position()
145 void amdtp_am824_set_midi_position(struct amdtp_stream *s,  in amdtp_am824_set_midi_position()  argument
148 	struct amdtp_am824 *p = s->protocol;  in amdtp_am824_set_midi_position()
154 static void write_pcm_s32(struct amdtp_stream *s,  in write_pcm_s32()  argument
158 	struct amdtp_am824 *p = s->protocol;  in write_pcm_s32()
165 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in write_pcm_s32()
166 	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,  in write_pcm_s16()  argument
184 	struct amdtp_am824 *p = s->protocol;  in write_pcm_s16()
191 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in write_pcm_s16()
192 	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,  in read_pcm_s32()  argument
210 	struct amdtp_am824 *p = s->protocol;  in read_pcm_s32()
217 			frames_to_bytes(runtime, s->pcm_buffer_pointer);  in read_pcm_s32()
218 	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,  in write_pcm_silence()  argument
234 	struct amdtp_am824 *p = s->protocol;  in write_pcm_silence()
240 		buffer += s->data_block_quadlets;  in write_pcm_silence()
253 void amdtp_am824_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format)  in amdtp_am824_set_pcm_format()  argument
255 	struct amdtp_am824 *p = s->protocol;  in amdtp_am824_set_pcm_format()
257 	if (WARN_ON(amdtp_stream_pcm_running(s)))  in amdtp_am824_set_pcm_format()
265 		if (s->direction == AMDTP_OUT_STREAM) {  in amdtp_am824_set_pcm_format()
272 		if (s->direction == AMDTP_OUT_STREAM)  in amdtp_am824_set_pcm_format()
287 int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s,  in amdtp_am824_add_pcm_hw_constraints()  argument
292 	err = amdtp_stream_add_pcm_hw_constraints(s, runtime);  in amdtp_am824_add_pcm_hw_constraints()
311 void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,  in amdtp_am824_midi_trigger()  argument
314 	struct amdtp_am824 *p = s->protocol;  in amdtp_am824_midi_trigger()
331 static bool midi_ratelimit_per_packet(struct amdtp_stream *s, unsigned int port)  in midi_ratelimit_per_packet()  argument
333 	struct amdtp_am824 *p = s->protocol;  in midi_ratelimit_per_packet()
340 	used -= MIDI_BYTES_PER_SECOND * s->syt_interval;  in midi_ratelimit_per_packet()
347 static void midi_rate_use_one_byte(struct amdtp_stream *s, unsigned int port)  in midi_rate_use_one_byte()  argument
349 	struct amdtp_am824 *p = s->protocol;  in midi_rate_use_one_byte()
351 	p->midi_fifo_used[port] += amdtp_rate_table[s->sfc];  in midi_rate_use_one_byte()
354 static void write_midi_messages(struct amdtp_stream *s, __be32 *buffer,  in write_midi_messages()  argument
357 	struct amdtp_am824 *p = s->protocol;  in write_midi_messages()
364 		port = (s->data_block_counter + f) % 8;  in write_midi_messages()
366 		    midi_ratelimit_per_packet(s, port) &&  in write_midi_messages()
369 			midi_rate_use_one_byte(s, port);  in write_midi_messages()
378 		buffer += s->data_block_quadlets;  in write_midi_messages()
382 static void read_midi_messages(struct amdtp_stream *s,  in read_midi_messages()  argument
385 	struct amdtp_am824 *p = s->protocol;  in read_midi_messages()
391 		port = (s->data_block_counter + f) % 8;  in read_midi_messages()
398 		buffer += s->data_block_quadlets;  in read_midi_messages()
402 static unsigned int process_rx_data_blocks(struct amdtp_stream *s, __be32 *buffer,  in process_rx_data_blocks()  argument
405 	struct amdtp_am824 *p = s->protocol;  in process_rx_data_blocks()
406 	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);  in process_rx_data_blocks()
410 		p->transfer_samples(s, pcm, buffer, data_blocks);  in process_rx_data_blocks()
413 		write_pcm_silence(s, buffer, data_blocks);  in process_rx_data_blocks()
418 		write_midi_messages(s, buffer, data_blocks);  in process_rx_data_blocks()
423 static unsigned int process_tx_data_blocks(struct amdtp_stream *s, __be32 *buffer,  in process_tx_data_blocks()  argument
426 	struct amdtp_am824 *p = s->protocol;  in process_tx_data_blocks()
427 	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);  in process_tx_data_blocks()
431 		p->transfer_samples(s, pcm, buffer, data_blocks);  in process_tx_data_blocks()
438 		read_midi_messages(s, buffer, data_blocks);  in process_tx_data_blocks()
451 int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,  in amdtp_am824_init()  argument
461 	return amdtp_stream_init(s, unit, dir, flags, CIP_FMT_AM,  in amdtp_am824_init()