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ALSA: oxfw: Split stream functionality to a new file and add a header file 

This is a help for works in followed patches.

And this commit remove 'fw_unit_get()/fw_unit_put()' because these
are called by helper functions in 'snd-firewire-lib'.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2014-11-29 00:59:27 +09:00 committed by Takashi Iwai
parent 1a4e39c2e5
commit e2786ca648
4 changed files with 159 additions and 109 deletions
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2
sound/firewire/oxfw/Makefile
View File

@ -1,2 +1,2 @@
snd-oxfw-objs := oxfw.o
snd-oxfw-objs := oxfw-stream.o oxfw.o
obj-m += snd-oxfw.o

80
sound/firewire/oxfw/oxfw-stream.c Normal file
View File

@ -0,0 +1,80 @@
/*
* oxfw_stream.c - a part of driver for OXFW970/971 based devices
*
* Copyright (c) 2014 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include "oxfw.h"
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw)
{
int err;
err = cmp_connection_init(&oxfw->in_conn, oxfw->unit,
CMP_INPUT, 0);
if (err < 0)
goto end;
err = amdtp_stream_init(&oxfw->rx_stream, oxfw->unit,
AMDTP_OUT_STREAM, CIP_NONBLOCKING);
if (err < 0) {
amdtp_stream_destroy(&oxfw->rx_stream);
cmp_connection_destroy(&oxfw->in_conn);
}
end:
return err;
}
static void stop_stream(struct snd_oxfw *oxfw)
{
amdtp_stream_pcm_abort(&oxfw->rx_stream);
amdtp_stream_stop(&oxfw->rx_stream);
cmp_connection_break(&oxfw->in_conn);
}
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw)
{
int err = 0;
if (amdtp_streaming_error(&oxfw->rx_stream))
stop_stream(oxfw);
if (amdtp_stream_running(&oxfw->rx_stream))
goto end;
err = cmp_connection_establish(&oxfw->in_conn,
amdtp_stream_get_max_payload(&oxfw->rx_stream));
if (err < 0)
goto end;
err = amdtp_stream_start(&oxfw->rx_stream,
oxfw->in_conn.resources.channel,
oxfw->in_conn.speed);
if (err < 0)
stop_stream(oxfw);
end:
return err;
}
void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw)
{
stop_stream(oxfw);
}
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw)
{
stop_stream(oxfw);
amdtp_stream_destroy(&oxfw->rx_stream);
cmp_connection_destroy(&oxfw->in_conn);
}
void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw)
{
if (cmp_connection_update(&oxfw->in_conn) < 0)
stop_stream(oxfw);
else
amdtp_stream_update(&oxfw->rx_stream);
}

130
sound/firewire/oxfw/oxfw.c
View File

@ -5,22 +5,7 @@
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/firewire-constants.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "../cmp.h"
#include "../fcp.h"
#include "../amdtp.h"
#include "../lib.h"
#include "oxfw.h"
#define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000)
/* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
@ -35,29 +20,6 @@
#define SPECIFIER_1394TA 0x00a02d
#define VERSION_AVC 0x010001
struct device_info {
const char *driver_name;
const char *short_name;
const char *long_name;
int (*pcm_constraints)(struct snd_pcm_runtime *runtime);
unsigned int mixer_channels;
u8 mute_fb_id;
u8 volume_fb_id;
};
struct snd_oxfw {
struct snd_card *card;
struct fw_unit *unit;
const struct device_info *device_info;
struct mutex mutex;
struct cmp_connection in_conn;
struct amdtp_stream rx_stream;
bool mute;
s16 volume[6];
s16 volume_min;
s16 volume_max;
};
MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver");
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_LICENSE("GPL v2");
@ -180,14 +142,6 @@ static int oxfw_close(struct snd_pcm_substream *substream)
return 0;
}
static void oxfw_stop_stream(struct snd_oxfw *oxfw)
{
if (amdtp_stream_running(&oxfw->rx_stream)) {
amdtp_stream_stop(&oxfw->rx_stream);
cmp_connection_break(&oxfw->in_conn);
}
}
static int oxfw_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
@ -195,8 +149,8 @@ static int oxfw_hw_params(struct snd_pcm_substream *substream,
int err;
mutex_lock(&oxfw->mutex);
oxfw_stop_stream(oxfw);
mutex_unlock(&oxfw->mutex);
snd_oxfw_stream_stop_simplex(oxfw);
err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
params_buffer_bytes(hw_params));
@ -223,6 +177,7 @@ static int oxfw_hw_params(struct snd_pcm_substream *substream,
err_buffer:
snd_pcm_lib_free_vmalloc_buffer(substream);
error:
mutex_unlock(&oxfw->mutex);
return err;
}
@ -231,7 +186,7 @@ static int oxfw_hw_free(struct snd_pcm_substream *substream)
struct snd_oxfw *oxfw = substream->private_data;
mutex_lock(&oxfw->mutex);
oxfw_stop_stream(oxfw);
snd_oxfw_stream_stop_simplex(oxfw);
mutex_unlock(&oxfw->mutex);
return snd_pcm_lib_free_vmalloc_buffer(substream);
@ -244,33 +199,15 @@ static int oxfw_prepare(struct snd_pcm_substream *substream)
mutex_lock(&oxfw->mutex);
if (amdtp_streaming_error(&oxfw->rx_stream))
oxfw_stop_stream(oxfw);
snd_oxfw_stream_stop_simplex(oxfw);
if (!amdtp_stream_running(&oxfw->rx_stream)) {
err = cmp_connection_establish(&oxfw->in_conn,
amdtp_stream_get_max_payload(&oxfw->rx_stream));
if (err < 0)
goto err_mutex;
err = amdtp_stream_start(&oxfw->rx_stream,
oxfw->in_conn.resources.channel,
oxfw->in_conn.speed);
if (err < 0)
goto err_connection;
}
mutex_unlock(&oxfw->mutex);
err = snd_oxfw_stream_start_simplex(oxfw);
if (err < 0)
goto end;
amdtp_stream_pcm_prepare(&oxfw->rx_stream);
return 0;
err_connection:
cmp_connection_break(&oxfw->in_conn);
err_mutex:
end:
mutex_unlock(&oxfw->mutex);
return err;
}
@ -615,9 +552,6 @@ static void oxfw_card_free(struct snd_card *card)
{
struct snd_oxfw *oxfw = card->private_data;
amdtp_stream_destroy(&oxfw->rx_stream);
cmp_connection_destroy(&oxfw->in_conn);
fw_unit_put(oxfw->unit);
mutex_destroy(&oxfw->mutex);
}
@ -635,23 +569,13 @@ static int oxfw_probe(struct fw_unit *unit,
if (err < 0)
return err;
card->private_free = oxfw_card_free;
oxfw = card->private_data;
oxfw->card = card;
mutex_init(&oxfw->mutex);
oxfw->unit = fw_unit_get(unit);
oxfw->unit = unit;
oxfw->device_info = (const struct device_info *)id->driver_data;
err = cmp_connection_init(&oxfw->in_conn, unit, CMP_INPUT, 0);
if (err < 0)
goto err_unit;
err = amdtp_stream_init(&oxfw->rx_stream, unit, AMDTP_OUT_STREAM,
CIP_NONBLOCKING);
if (err < 0)
goto err_connection;
card->private_free = oxfw_card_free;
strcpy(card->driver, oxfw->device_info->driver_name);
strcpy(card->shortname, oxfw->device_info->short_name);
firmware = oxfw_read_firmware_version(unit);
@ -671,19 +595,18 @@ static int oxfw_probe(struct fw_unit *unit,
if (err < 0)
goto error;
err = snd_card_register(card);
err = snd_oxfw_stream_init_simplex(oxfw);
if (err < 0)
goto error;
err = snd_card_register(card);
if (err < 0) {
snd_oxfw_stream_destroy_simplex(oxfw);
goto error;
}
dev_set_drvdata(&unit->device, oxfw);
return 0;
err_connection:
cmp_connection_destroy(&oxfw->in_conn);
err_unit:
fw_unit_put(oxfw->unit);
mutex_destroy(&oxfw->mutex);
error:
snd_card_free(card);
return err;
@ -695,27 +618,18 @@ static void oxfw_bus_reset(struct fw_unit *unit)
fcp_bus_reset(oxfw->unit);
if (cmp_connection_update(&oxfw->in_conn) < 0) {
amdtp_stream_pcm_abort(&oxfw->rx_stream);
mutex_lock(&oxfw->mutex);
oxfw_stop_stream(oxfw);
mutex_unlock(&oxfw->mutex);
return;
}
amdtp_stream_update(&oxfw->rx_stream);
mutex_lock(&oxfw->mutex);
snd_oxfw_stream_update_simplex(oxfw);
mutex_unlock(&oxfw->mutex);
}
static void oxfw_remove(struct fw_unit *unit)
{
struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
amdtp_stream_pcm_abort(&oxfw->rx_stream);
snd_card_disconnect(oxfw->card);
mutex_lock(&oxfw->mutex);
oxfw_stop_stream(oxfw);
mutex_unlock(&oxfw->mutex);
snd_oxfw_stream_destroy_simplex(oxfw);
snd_card_free_when_closed(oxfw->card);
}

56
sound/firewire/oxfw/oxfw.h Normal file
View File

@ -0,0 +1,56 @@
/*
* oxfw.h - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/firewire-constants.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "../lib.h"
#include "../fcp.h"
#include "../packets-buffer.h"
#include "../iso-resources.h"
#include "../amdtp.h"
#include "../cmp.h"
struct device_info {
const char *driver_name;
const char *short_name;
const char *long_name;
int (*pcm_constraints)(struct snd_pcm_runtime *runtime);
unsigned int mixer_channels;
u8 mute_fb_id;
u8 volume_fb_id;
};
struct snd_oxfw {
struct snd_card *card;
struct fw_unit *unit;
const struct device_info *device_info;
struct mutex mutex;
struct cmp_connection in_conn;
struct amdtp_stream rx_stream;
bool mute;
s16 volume[6];
s16 volume_min;
s16 volume_max;
};
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw);
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw);