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Commit be4a2894 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: firewire-lib: Rename functions, structure, member for AMDTP 



This patch renames some functions, a structure and its member to reuse them
in both AMDTP in/out stream.

Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 4b660a7f

sound/firewire/amdtp.c

+77 −77
Original line number Diff line number Diff line
@@ -34,13 +34,13 @@ 
static void pcm_period_tasklet(unsigned long data);



/**

 * amdtp_out_stream_init - initialize an AMDTP output stream structure

 * @s: the AMDTP output stream to initialize

 * amdtp_stream_init - initialize an AMDTP stream structure

 * @s: the AMDTP stream to initialize

 * @unit: the target of the stream

 * @flags: the packet transmission method to use

 */

int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,

			  enum cip_out_flags flags)

int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,

		      enum cip_flags flags)

{

	s->unit = fw_unit_get(unit);

	s->flags = flags;
@@ -51,19 +51,19 @@ int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit, 


	return 0;

}

EXPORT_SYMBOL(amdtp_out_stream_init);

EXPORT_SYMBOL(amdtp_stream_init);



/**

 * amdtp_out_stream_destroy - free stream resources

 * @s: the AMDTP output stream to destroy

 * amdtp_stream_destroy - free stream resources

 * @s: the AMDTP stream to destroy

 */

void amdtp_out_stream_destroy(struct amdtp_out_stream *s)

void amdtp_stream_destroy(struct amdtp_stream *s)

{

	WARN_ON(amdtp_out_stream_running(s));

	WARN_ON(amdtp_stream_running(s));

	mutex_destroy(&s->mutex);

	fw_unit_put(s->unit);

}

EXPORT_SYMBOL(amdtp_out_stream_destroy);

EXPORT_SYMBOL(amdtp_stream_destroy);



const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {

	[CIP_SFC_32000]  =  8,
@@ -77,8 +77,8 @@ const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = { 
EXPORT_SYMBOL(amdtp_syt_intervals);



/**

 * amdtp_out_stream_set_parameters - set stream parameters

 * @s: the AMDTP output stream to configure

 * amdtp_stream_set_parameters - set stream parameters

 * @s: the AMDTP stream to configure

 * @rate: the sample rate

 * @pcm_channels: the number of PCM samples in each data block, to be encoded

 *                as AM824 multi-bit linear audio
@@ -87,7 +87,7 @@ EXPORT_SYMBOL(amdtp_syt_intervals); 
 * The parameters must be set before the stream is started, and must not be

 * changed while the stream is running.

 */

void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,

void amdtp_stream_set_parameters(struct amdtp_stream *s,

				 unsigned int rate,

				 unsigned int pcm_channels,

				 unsigned int midi_ports)
@@ -103,7 +103,7 @@ void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s, 
	};

	unsigned int sfc;



	if (WARN_ON(amdtp_out_stream_running(s)))

	if (WARN_ON(amdtp_stream_running(s)))

		return;



	for (sfc = 0; sfc < CIP_SFC_COUNT; ++sfc)
@@ -132,47 +132,47 @@ sfc_found: 
		/* additional buffering needed to adjust for no-data packets */

		s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;

}

EXPORT_SYMBOL(amdtp_out_stream_set_parameters);

EXPORT_SYMBOL(amdtp_stream_set_parameters);



/**

 * amdtp_out_stream_get_max_payload - get the stream's packet size

 * @s: the AMDTP output stream

 * amdtp_stream_get_max_payload - get the stream's packet size

 * @s: the AMDTP stream

 *

 * This function must not be called before the stream has been configured

 * with amdtp_out_stream_set_parameters().

 * with amdtp_stream_set_parameters().

 */

unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s)

unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s)

{

	return 8 + s->syt_interval * s->data_block_quadlets * 4;

}

EXPORT_SYMBOL(amdtp_out_stream_get_max_payload);

EXPORT_SYMBOL(amdtp_stream_get_max_payload);



static void amdtp_write_s16(struct amdtp_out_stream *s,

static void amdtp_write_s16(struct amdtp_stream *s,

			    struct snd_pcm_substream *pcm,

			    __be32 *buffer, unsigned int frames);

static void amdtp_write_s32(struct amdtp_out_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_out_stream *s,

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_out_stream *s,

static void amdtp_write_s32_dualwire(struct amdtp_stream *s,

				     struct snd_pcm_substream *pcm,

				     __be32 *buffer, unsigned int frames);



/**

 * amdtp_out_stream_set_pcm_format - set the PCM format

 * @s: the AMDTP output stream to configure

 * amdtp_stream_set_pcm_format - set the PCM format

 * @s: the AMDTP stream to configure

 * @format: the format of the ALSA PCM device

 *

 * The sample format must be set after the other paramters (rate/PCM channels/

 * MIDI) and before the stream is started, and must not be changed while the

 * stream is running.

 */

void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,

void amdtp_stream_set_pcm_format(struct amdtp_stream *s,

				 snd_pcm_format_t format)

{

	if (WARN_ON(amdtp_out_stream_running(s)))

	if (WARN_ON(amdtp_stream_running(s)))

		return;



	switch (format) {
@@ -193,24 +193,24 @@ void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s, 
		break;

	}

}

EXPORT_SYMBOL(amdtp_out_stream_set_pcm_format);

EXPORT_SYMBOL(amdtp_stream_set_pcm_format);



/**

 * amdtp_out_stream_pcm_prepare - prepare PCM device for running

 * @s: the AMDTP output stream

 * amdtp_stream_pcm_prepare - prepare PCM device for running

 * @s: the AMDTP stream

 *

 * This function should be called from the PCM device's .prepare callback.

 */

void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s)

void amdtp_stream_pcm_prepare(struct amdtp_stream *s)

{

	tasklet_kill(&s->period_tasklet);

	s->pcm_buffer_pointer = 0;

	s->pcm_period_pointer = 0;

	s->pointer_flush = true;

}

EXPORT_SYMBOL(amdtp_out_stream_pcm_prepare);

EXPORT_SYMBOL(amdtp_stream_pcm_prepare);



static unsigned int calculate_data_blocks(struct amdtp_out_stream *s)

static unsigned int calculate_data_blocks(struct amdtp_stream *s)

{

	unsigned int phase, data_blocks;
@@ -243,7 +243,7 @@ static unsigned int calculate_data_blocks(struct amdtp_out_stream *s) 
	return data_blocks;

}



static unsigned int calculate_syt(struct amdtp_out_stream *s,

static unsigned int calculate_syt(struct amdtp_stream *s,

				  unsigned int cycle)

{

	unsigned int syt_offset, phase, index, syt;
@@ -286,7 +286,7 @@ static unsigned int calculate_syt(struct amdtp_out_stream *s, 
	}

}



static void amdtp_write_s32(struct amdtp_out_stream *s,

static void amdtp_write_s32(struct amdtp_stream *s,

			    struct snd_pcm_substream *pcm,

			    __be32 *buffer, unsigned int frames)

{
@@ -312,7 +312,7 @@ static void amdtp_write_s32(struct amdtp_out_stream *s, 
	}

}



static void amdtp_write_s16(struct amdtp_out_stream *s,

static void amdtp_write_s16(struct amdtp_stream *s,

			    struct snd_pcm_substream *pcm,

			    __be32 *buffer, unsigned int frames)

{
@@ -338,7 +338,7 @@ static void amdtp_write_s16(struct amdtp_out_stream *s, 
	}

}



static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,

static void amdtp_write_s32_dualwire(struct amdtp_stream *s,

				     struct snd_pcm_substream *pcm,

				     __be32 *buffer, unsigned int frames)

{
@@ -369,7 +369,7 @@ static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s, 
	}

}



static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,

static void amdtp_write_s16_dualwire(struct amdtp_stream *s,

				     struct snd_pcm_substream *pcm,

				     __be32 *buffer, unsigned int frames)

{
@@ -400,7 +400,7 @@ static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s, 
	}

}



static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s,

static void amdtp_fill_pcm_silence(struct amdtp_stream *s,

				   __be32 *buffer, unsigned int frames)

{

	unsigned int i, c;
@@ -412,7 +412,7 @@ static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s, 
	}

}



static void amdtp_fill_midi(struct amdtp_out_stream *s,

static void amdtp_fill_midi(struct amdtp_stream *s,

			    __be32 *buffer, unsigned int frames)

{

	unsigned int i;
@@ -422,7 +422,7 @@ static void amdtp_fill_midi(struct amdtp_out_stream *s, 
						cpu_to_be32(0x80000000);

}



static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)

static void queue_out_packet(struct amdtp_stream *s, unsigned int cycle)

{

	__be32 *buffer;

	unsigned int index, data_blocks, syt, ptr;
@@ -473,7 +473,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle) 
	if (err < 0) {

		dev_err(&s->unit->device, "queueing error: %d\n", err);

		s->packet_index = -1;

		amdtp_out_stream_pcm_abort(s);

		amdtp_stream_pcm_abort(s);

		return;

	}
@@ -501,7 +501,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle) 


static void pcm_period_tasklet(unsigned long data)

{

	struct amdtp_out_stream *s = (void *)data;

	struct amdtp_stream *s = (void *)data;

	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);



	if (pcm)
@@ -509,9 +509,9 @@ static void pcm_period_tasklet(unsigned long data) 
}



static void out_packet_callback(struct fw_iso_context *context, u32 cycle,

				size_t header_length, void *header, void *data)

			size_t header_length, void *header, void *private_data)

{

	struct amdtp_out_stream *s = data;

	struct amdtp_stream *s = private_data;

	unsigned int i, packets = header_length / 4;



	/*
@@ -526,7 +526,7 @@ static void out_packet_callback(struct fw_iso_context *context, u32 cycle, 
	fw_iso_context_queue_flush(s->context);

}



static int queue_initial_skip_packets(struct amdtp_out_stream *s)

static int queue_initial_skip_packets(struct amdtp_stream *s)

{

	struct fw_iso_packet skip_packet = {

		.skip = 1,
@@ -548,16 +548,16 @@ static int queue_initial_skip_packets(struct amdtp_out_stream *s) 
}



/**

 * amdtp_out_stream_start - start sending packets

 * @s: the AMDTP output stream to start

 * amdtp_stream_start - start transferring packets

 * @s: the AMDTP stream to start

 * @channel: the isochronous channel on the bus

 * @speed: firewire speed code

 *

 * The stream cannot be started until it has been configured with

 * amdtp_out_stream_set_parameters() and amdtp_out_stream_set_pcm_format(),

 * and it must be started before any PCM or MIDI device can be started.

 * amdtp_stream_set_parameters() and it must be started before any PCM or MIDI

 * device can be started.

 */

int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)

int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed)

{

	static const struct {

		unsigned int data_block;
@@ -575,7 +575,7 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed) 


	mutex_lock(&s->mutex);



	if (WARN_ON(amdtp_out_stream_running(s) ||

	if (WARN_ON(amdtp_stream_running(s) ||

		    (!s->pcm_channels && !s->midi_ports))) {

		err = -EBADFD;

		goto err_unlock;
@@ -586,7 +586,7 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed) 
	s->last_syt_offset = TICKS_PER_CYCLE;



	err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,

				      amdtp_out_stream_get_max_payload(s),

				      amdtp_stream_get_max_payload(s),

				      DMA_TO_DEVICE);

	if (err < 0)

		goto err_unlock;
@@ -599,11 +599,11 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed) 
		err = PTR_ERR(s->context);

		if (err == -EBUSY)

			dev_err(&s->unit->device,

				"no free output stream on this controller\n");

				"no free stream on this controller\n");

		goto err_buffer;

	}



	amdtp_out_stream_update(s);

	amdtp_stream_update(s);



	s->packet_index = 0;

	s->data_block_counter = 0;
@@ -629,15 +629,15 @@ err_unlock: 


	return err;

}

EXPORT_SYMBOL(amdtp_out_stream_start);

EXPORT_SYMBOL(amdtp_stream_start);



/**

 * amdtp_out_stream_pcm_pointer - get the PCM buffer position

 * @s: the AMDTP output stream that transports the PCM data

 * amdtp_stream_pcm_pointer - get the PCM buffer position

 * @s: the AMDTP stream that transports the PCM data

 *

 * Returns the current buffer position, in frames.

 */

unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s)

unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s)

{

	/* this optimization is allowed to be racy */

	if (s->pointer_flush)
@@ -647,31 +647,31 @@ unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s) 


	return ACCESS_ONCE(s->pcm_buffer_pointer);

}

EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);

EXPORT_SYMBOL(amdtp_stream_pcm_pointer);



/**

 * amdtp_out_stream_update - update the stream after a bus reset

 * @s: the AMDTP output stream

 * amdtp_stream_update - update the stream after a bus reset

 * @s: the AMDTP stream

 */

void amdtp_out_stream_update(struct amdtp_out_stream *s)

void amdtp_stream_update(struct amdtp_stream *s)

{

	ACCESS_ONCE(s->source_node_id_field) =

		(fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;

}

EXPORT_SYMBOL(amdtp_out_stream_update);

EXPORT_SYMBOL(amdtp_stream_update);



/**

 * amdtp_out_stream_stop - stop sending packets

 * @s: the AMDTP output stream to stop

 * amdtp_stream_stop - stop sending packets

 * @s: the AMDTP stream to stop

 *

 * All PCM and MIDI devices of the stream must be stopped before the stream

 * itself can be stopped.

 */

void amdtp_out_stream_stop(struct amdtp_out_stream *s)

void amdtp_stream_stop(struct amdtp_stream *s)

{

	mutex_lock(&s->mutex);



	if (!amdtp_out_stream_running(s)) {

	if (!amdtp_stream_running(s)) {

		mutex_unlock(&s->mutex);

		return;

	}
@@ -684,16 +684,16 @@ void amdtp_out_stream_stop(struct amdtp_out_stream *s) 


	mutex_unlock(&s->mutex);

}

EXPORT_SYMBOL(amdtp_out_stream_stop);

EXPORT_SYMBOL(amdtp_stream_stop);



/**

 * amdtp_out_stream_pcm_abort - abort the running PCM device

 * amdtp_stream_pcm_abort - abort the running PCM device

 * @s: the AMDTP stream about to be stopped

 *

 * If the isochronous stream needs to be stopped asynchronously, call this

 * function first to stop the PCM device.

 */

void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s)

void amdtp_stream_pcm_abort(struct amdtp_stream *s)

{

	struct snd_pcm_substream *pcm;
@@ -705,4 +705,4 @@ void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s) 
		snd_pcm_stream_unlock_irq(pcm);

	}

}

EXPORT_SYMBOL(amdtp_out_stream_pcm_abort);
 
EXPORT_SYMBOL(amdtp_stream_pcm_abort);

sound/firewire/amdtp.h

+35 −29
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ 
#include "packets-buffer.h"



/**

 * enum cip_out_flags - describes details of the streaming protocol

 * enum cip_flags - describes details of the streaming protocol

 * @CIP_NONBLOCKING: In non-blocking mode, each packet contains

 *	sample_rate/8000 samples, with rounding up or down to adjust

 *	for clock skew and left-over fractional samples.  This should
@@ -21,7 +21,7 @@ 
 *	two samples of a channel are stored consecutively in the packet.

 *	Requires blocking mode and SYT_INTERVAL-aligned PCM buffer size.

 */

enum cip_out_flags {

enum cip_flags {

	CIP_NONBLOCKING	= 0x00,

	CIP_BLOCKING	= 0x01,

	CIP_HI_DUALWIRE	= 0x02,
@@ -48,9 +48,9 @@ struct fw_unit; 
struct fw_iso_context;

struct snd_pcm_substream;



struct amdtp_out_stream {

struct amdtp_stream {

	struct fw_unit *unit;

	enum cip_out_flags flags;

	enum cip_flags flags;

	struct fw_iso_context *context;

	struct mutex mutex;
@@ -59,7 +59,7 @@ struct amdtp_out_stream { 
	unsigned int data_block_quadlets;

	unsigned int pcm_channels;

	unsigned int midi_ports;

	void (*transfer_samples)(struct amdtp_out_stream *s,

	void (*transfer_samples)(struct amdtp_stream *s,

				 struct snd_pcm_substream *pcm,

				 __be32 *buffer, unsigned int frames);
@@ -84,55 +84,61 @@ struct amdtp_out_stream { 
	bool pointer_flush;

};



int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,

			  enum cip_out_flags flags);

void amdtp_out_stream_destroy(struct amdtp_out_stream *s);

int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit,

		      enum cip_flags flags);

void amdtp_stream_destroy(struct amdtp_stream *s);



void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,

void amdtp_stream_set_parameters(struct amdtp_stream *s,

				 unsigned int rate,

				 unsigned int pcm_channels,

				 unsigned int midi_ports);

unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s);

unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s);



int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed);

void amdtp_out_stream_update(struct amdtp_out_stream *s);

void amdtp_out_stream_stop(struct amdtp_out_stream *s);

int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed);

void amdtp_stream_update(struct amdtp_stream *s);

void amdtp_stream_stop(struct amdtp_stream *s);



void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,

void amdtp_stream_set_pcm_format(struct amdtp_stream *s,

				 snd_pcm_format_t format);

void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);

unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);

void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);

void amdtp_stream_pcm_prepare(struct amdtp_stream *s);

unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s);

void amdtp_stream_pcm_abort(struct amdtp_stream *s);



extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];



static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)

/**

 * amdtp_stream_running - check stream is running or not

 * @s: the AMDTP stream

 *

 * If this function returns true, the stream is running.

 */

static inline bool amdtp_stream_running(struct amdtp_stream *s)

{

	return !IS_ERR(s->context);

}



/**

 * amdtp_out_streaming_error - check for streaming error

 * @s: the AMDTP output stream

 * amdtp_streaming_error - check for streaming error

 * @s: the AMDTP stream

 *

 * If this function returns true, the stream's packet queue has stopped due to

 * an asynchronous error.

 */

static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)

static inline bool amdtp_streaming_error(struct amdtp_stream *s)

{

	return s->packet_index < 0;

}



/**

 * amdtp_out_stream_pcm_trigger - start/stop playback from a PCM device

 * @s: the AMDTP output stream

 * amdtp_stream_pcm_trigger - start/stop playback from a PCM device

 * @s: the AMDTP stream

 * @pcm: the PCM device to be started, or %NULL to stop the current device

 *

 * Call this function on a running isochronous stream to enable the actual

 * transmission of PCM data.  This function should be called from the PCM

 * device's .trigger callback.

 */

static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,

static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,

					    struct snd_pcm_substream *pcm)

{

	ACCESS_ONCE(s->pcm) = pcm;

sound/firewire/dice.c

+23 −23
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ struct dice { 
	wait_queue_head_t hwdep_wait;

	u32 notification_bits;

	struct fw_iso_resources resources;

	struct amdtp_out_stream stream;

	struct amdtp_stream stream;

};



MODULE_DESCRIPTION("DICE driver");
@@ -460,17 +460,17 @@ static int dice_stream_start_packets(struct dice *dice) 
{

	int err;



	if (amdtp_out_stream_running(&dice->stream))

	if (amdtp_stream_running(&dice->stream))

		return 0;



	err = amdtp_out_stream_start(&dice->stream, dice->resources.channel,

	err = amdtp_stream_start(&dice->stream, dice->resources.channel,

				 fw_parent_device(dice->unit)->max_speed);

	if (err < 0)

		return err;



	err = dice_enable_set(dice);

	if (err < 0) {

		amdtp_out_stream_stop(&dice->stream);

		amdtp_stream_stop(&dice->stream);

		return err;

	}
@@ -484,7 +484,7 @@ static int dice_stream_start(struct dice *dice) 


	if (!dice->resources.allocated) {

		err = fw_iso_resources_allocate(&dice->resources,

				amdtp_out_stream_get_max_payload(&dice->stream),

				amdtp_stream_get_max_payload(&dice->stream),

				fw_parent_device(dice->unit)->max_speed);

		if (err < 0)

			goto error;
@@ -516,9 +516,9 @@ error: 


static void dice_stream_stop_packets(struct dice *dice)

{

	if (amdtp_out_stream_running(&dice->stream)) {

	if (amdtp_stream_running(&dice->stream)) {

		dice_enable_clear(dice);

		amdtp_out_stream_stop(&dice->stream);

		amdtp_stream_stop(&dice->stream);

	}

}
@@ -581,11 +581,11 @@ static int dice_hw_params(struct snd_pcm_substream *substream, 
		return err;



	mode = rate_index_to_mode(rate_index);

	amdtp_out_stream_set_parameters(&dice->stream,

	amdtp_stream_set_parameters(&dice->stream,

				    params_rate(hw_params),

				    params_channels(hw_params),

				    dice->rx_midi_ports[mode]);

	amdtp_out_stream_set_pcm_format(&dice->stream,

	amdtp_stream_set_pcm_format(&dice->stream,

				    params_format(hw_params));



	return 0;
@@ -609,7 +609,7 @@ static int dice_prepare(struct snd_pcm_substream *substream) 


	mutex_lock(&dice->mutex);



	if (amdtp_out_streaming_error(&dice->stream))

	if (amdtp_streaming_error(&dice->stream))

		dice_stream_stop_packets(dice);



	err = dice_stream_start(dice);
@@ -620,7 +620,7 @@ static int dice_prepare(struct snd_pcm_substream *substream) 


	mutex_unlock(&dice->mutex);



	amdtp_out_stream_pcm_prepare(&dice->stream);

	amdtp_stream_pcm_prepare(&dice->stream);



	return 0;

}
@@ -640,7 +640,7 @@ static int dice_trigger(struct snd_pcm_substream *substream, int cmd) 
	default:

		return -EINVAL;

	}

	amdtp_out_stream_pcm_trigger(&dice->stream, pcm);

	amdtp_stream_pcm_trigger(&dice->stream, pcm);



	return 0;

}
@@ -649,7 +649,7 @@ static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream) 
{

	struct dice *dice = substream->private_data;



	return amdtp_out_stream_pcm_pointer(&dice->stream);

	return amdtp_stream_pcm_pointer(&dice->stream);

}



static int dice_create_pcm(struct dice *dice)
@@ -1104,7 +1104,7 @@ static void dice_card_free(struct snd_card *card) 
{

	struct dice *dice = card->private_data;



	amdtp_out_stream_destroy(&dice->stream);

	amdtp_stream_destroy(&dice->stream);

	fw_core_remove_address_handler(&dice->notification_handler);

	mutex_destroy(&dice->mutex);

}
@@ -1360,7 +1360,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) 
		goto err_owner;

	dice->resources.channels_mask = 0x00000000ffffffffuLL;



	err = amdtp_out_stream_init(&dice->stream, unit,

	err = amdtp_stream_init(&dice->stream, unit,

				CIP_BLOCKING | CIP_HI_DUALWIRE);

	if (err < 0)

		goto err_resources;
@@ -1417,7 +1417,7 @@ static void dice_remove(struct fw_unit *unit) 
{

	struct dice *dice = dev_get_drvdata(&unit->device);



	amdtp_out_stream_pcm_abort(&dice->stream);

	amdtp_stream_pcm_abort(&dice->stream);



	snd_card_disconnect(dice->card);
@@ -1443,7 +1443,7 @@ static void dice_bus_reset(struct fw_unit *unit) 
	 * to stop so that the application can restart them in an orderly

	 * manner.

	 */

	amdtp_out_stream_pcm_abort(&dice->stream);

	amdtp_stream_pcm_abort(&dice->stream);



	mutex_lock(&dice->mutex);

sound/firewire/speakers.c

+23 −23
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ struct fwspk { 
	const struct device_info *device_info;

	struct mutex mutex;

	struct cmp_connection connection;

	struct amdtp_out_stream stream;

	struct amdtp_stream stream;

	bool mute;

	s16 volume[6];

	s16 volume_min;
@@ -187,8 +187,8 @@ static int fwspk_close(struct snd_pcm_substream *substream) 


static void fwspk_stop_stream(struct fwspk *fwspk)

{

	if (amdtp_out_stream_running(&fwspk->stream)) {

		amdtp_out_stream_stop(&fwspk->stream);

	if (amdtp_stream_running(&fwspk->stream)) {

		amdtp_stream_stop(&fwspk->stream);

		cmp_connection_break(&fwspk->connection);

	}

}
@@ -244,12 +244,12 @@ static int fwspk_hw_params(struct snd_pcm_substream *substream, 
	if (err < 0)

		goto error;



	amdtp_out_stream_set_parameters(&fwspk->stream,

	amdtp_stream_set_parameters(&fwspk->stream,

				    params_rate(hw_params),

				    params_channels(hw_params),

				    0);



	amdtp_out_stream_set_pcm_format(&fwspk->stream,

	amdtp_stream_set_pcm_format(&fwspk->stream,

				    params_format(hw_params));



	err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
@@ -282,16 +282,16 @@ static int fwspk_prepare(struct snd_pcm_substream *substream) 


	mutex_lock(&fwspk->mutex);



	if (amdtp_out_streaming_error(&fwspk->stream))

	if (amdtp_streaming_error(&fwspk->stream))

		fwspk_stop_stream(fwspk);



	if (!amdtp_out_stream_running(&fwspk->stream)) {

	if (!amdtp_stream_running(&fwspk->stream)) {

		err = cmp_connection_establish(&fwspk->connection,

			amdtp_out_stream_get_max_payload(&fwspk->stream));

			amdtp_stream_get_max_payload(&fwspk->stream));

		if (err < 0)

			goto err_mutex;



		err = amdtp_out_stream_start(&fwspk->stream,

		err = amdtp_stream_start(&fwspk->stream,

					 fwspk->connection.resources.channel,

					 fwspk->connection.speed);

		if (err < 0)
@@ -300,7 +300,7 @@ static int fwspk_prepare(struct snd_pcm_substream *substream) 


	mutex_unlock(&fwspk->mutex);



	amdtp_out_stream_pcm_prepare(&fwspk->stream);

	amdtp_stream_pcm_prepare(&fwspk->stream);



	return 0;
@@ -327,7 +327,7 @@ static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd) 
	default:

		return -EINVAL;

	}

	amdtp_out_stream_pcm_trigger(&fwspk->stream, pcm);

	amdtp_stream_pcm_trigger(&fwspk->stream, pcm);

	return 0;

}
@@ -335,7 +335,7 @@ static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream) 
{

	struct fwspk *fwspk = substream->private_data;



	return amdtp_out_stream_pcm_pointer(&fwspk->stream);

	return amdtp_stream_pcm_pointer(&fwspk->stream);

}



static int fwspk_create_pcm(struct fwspk *fwspk)
@@ -653,7 +653,7 @@ static void fwspk_card_free(struct snd_card *card) 
{

	struct fwspk *fwspk = card->private_data;



	amdtp_out_stream_destroy(&fwspk->stream);

	amdtp_stream_destroy(&fwspk->stream);

	cmp_connection_destroy(&fwspk->connection);

	fw_unit_put(fwspk->unit);

	mutex_destroy(&fwspk->mutex);
@@ -683,7 +683,7 @@ static int fwspk_probe(struct fw_unit *unit, 
	if (err < 0)

		goto err_unit;



	err = amdtp_out_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);

	err = amdtp_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);

	if (err < 0)

		goto err_connection;
@@ -733,21 +733,21 @@ static void fwspk_bus_reset(struct fw_unit *unit) 
	fcp_bus_reset(fwspk->unit);



	if (cmp_connection_update(&fwspk->connection) < 0) {

		amdtp_out_stream_pcm_abort(&fwspk->stream);

		amdtp_stream_pcm_abort(&fwspk->stream);

		mutex_lock(&fwspk->mutex);

		fwspk_stop_stream(fwspk);

		mutex_unlock(&fwspk->mutex);

		return;

	}



	amdtp_out_stream_update(&fwspk->stream);

	amdtp_stream_update(&fwspk->stream);

}



static void fwspk_remove(struct fw_unit *unit)

{

	struct fwspk *fwspk = dev_get_drvdata(&unit->device);



	amdtp_out_stream_pcm_abort(&fwspk->stream);

	amdtp_stream_pcm_abort(&fwspk->stream);

	snd_card_disconnect(fwspk->card);



	mutex_lock(&fwspk->mutex);