V4L/DVB: cx18-alsa: Initial non-working cx18-alsa files
Initial cx18-alsa module files check-in to avoid losing work. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
5eb3291fe8
commit
9722c8f95a
191
drivers/media/video/cx18/cx18-alsa-mixer.c
Normal file
191
drivers/media/video/cx18/cx18-alsa-mixer.c
Normal file
|
@ -0,0 +1,191 @@
|
|||
/*
|
||||
* ALSA mixer controls for the
|
||||
* ALSA interface to cx18 PCM capture streams
|
||||
*
|
||||
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
* 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/videodev2.h>
|
||||
|
||||
#include <media/v4l2-device.h>
|
||||
|
||||
#include <sound/core.h>
|
||||
#include <sound/control.h>
|
||||
#include <sound/tlv.h>
|
||||
|
||||
#include "cx18-alsa.h"
|
||||
#include "cx18-driver.h"
|
||||
|
||||
/*
|
||||
* Mixer manipulations are like v4l2 ioctl() calls to manipulate controls,
|
||||
* just use the same lock we use for ioctl()s for now
|
||||
*/
|
||||
static inline void snd_cx18_mixer_lock(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
||||
mutex_lock(&cx->serialize_lock);
|
||||
}
|
||||
|
||||
static inline void snd_cx18_mixer_unlock(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
||||
mutex_unlock(&cx->serialize_lock);
|
||||
}
|
||||
|
||||
/*
|
||||
* Note the cx18-av-core volume scale is funny, due to the alignment of the
|
||||
* scale with another chip's range:
|
||||
*
|
||||
* v4l2_control value /512 indicated dB actual dB reg 0x8d4
|
||||
* 0x0000 - 0x01ff 0 -119 -96 228
|
||||
* 0x0200 - 0x02ff 1 -118 -96 228
|
||||
* ...
|
||||
* 0x2c00 - 0x2dff 22 -97 -96 228
|
||||
* 0x2e00 - 0x2fff 23 -96 -96 228
|
||||
* 0x3000 - 0x31ff 24 -95 -95 226
|
||||
* ...
|
||||
* 0xee00 - 0xefff 119 0 0 36
|
||||
* ...
|
||||
* 0xfe00 - 0xffff 127 +8 +8 20
|
||||
*/
|
||||
static inline int dB_to_cx18_av_vol(int dB)
|
||||
{
|
||||
if (dB < -96)
|
||||
dB = -96;
|
||||
else if (dB > 8)
|
||||
dB = 8;
|
||||
return (dB + 119) << 9;
|
||||
}
|
||||
|
||||
static inline int cx18_av_vol_to_dB(int v)
|
||||
{
|
||||
if (v < (23 << 9))
|
||||
v = (23 << 9);
|
||||
else if (v > (127 << 9))
|
||||
v = (127 << 9);
|
||||
return (v >> 9) - 119;
|
||||
}
|
||||
|
||||
static int snd_cx18_mixer_tv_vol_info(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
{
|
||||
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
||||
uinfo->count = 1;
|
||||
/* We're already translating values, just keep this control in dB */
|
||||
uinfo->value.integer.min = -96;
|
||||
uinfo->value.integer.max = +8;
|
||||
uinfo->value.integer.step = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int snd_cx18_mixer_tv_vol_get(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_value *uctl)
|
||||
{
|
||||
struct snd_cx18_card *cxsc = snd_kcontrol_chip(kctl);
|
||||
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
||||
struct v4l2_control vctrl;
|
||||
int ret;
|
||||
|
||||
vctrl.id = V4L2_CID_AUDIO_VOLUME;
|
||||
vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
|
||||
|
||||
snd_cx18_mixer_lock(cxsc);
|
||||
ret = v4l2_subdev_call(cx->sd_av, core, g_ctrl, &vctrl);
|
||||
snd_cx18_mixer_unlock(cxsc);
|
||||
|
||||
if (!ret)
|
||||
uctl->value.integer.value[0] = cx18_av_vol_to_dB(vctrl.value);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int snd_cx18_mixer_tv_vol_put(struct snd_kcontrol *kctl,
|
||||
struct snd_ctl_elem_value *uctl)
|
||||
{
|
||||
struct snd_cx18_card *cxsc = snd_kcontrol_chip(kctl);
|
||||
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
||||
struct v4l2_control vctrl;
|
||||
int ret;
|
||||
|
||||
vctrl.id = V4L2_CID_AUDIO_VOLUME;
|
||||
vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
|
||||
|
||||
snd_cx18_mixer_lock(cxsc);
|
||||
|
||||
/* Fetch current state */
|
||||
ret = v4l2_subdev_call(cx->sd_av, core, g_ctrl, &vctrl);
|
||||
|
||||
if (ret ||
|
||||
(cx18_av_vol_to_dB(vctrl.value) != uctl->value.integer.value[0])) {
|
||||
|
||||
/* Set, if needed */
|
||||
vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
|
||||
ret = v4l2_subdev_call(cx->sd_av, core, s_ctrl, &vctrl);
|
||||
if (!ret)
|
||||
ret = 1; /* Indicate control was changed w/o error */
|
||||
}
|
||||
snd_cx18_mixer_unlock(cxsc);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
/* This is a bit of overkill, the slider is already in dB internally */
|
||||
static DECLARE_TLV_DB_SCALE(snd_cx18_mixer_tv_vol_db_scale, -9600, 100, 0);
|
||||
|
||||
static struct snd_kcontrol_new snd_cx18_mixer_tv_vol __initdata = {
|
||||
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||||
.name = "Analog TV Capture Volume",
|
||||
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
|
||||
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
|
||||
.info = snd_cx18_mixer_tv_volume_info,
|
||||
.get = snd_cx18_mixer_tv_volume_get,
|
||||
.put = snd_cx18_mixer_tv_volume_put,
|
||||
.tlv.p = snd_cx18_mixer_tv_vol_db_scale
|
||||
};
|
||||
|
||||
/* FIXME - add mute switch and balance, bass, treble sliders:
|
||||
V4L2_CID_AUDIO_MUTE
|
||||
|
||||
V4L2_CID_AUDIO_BALANCE
|
||||
|
||||
V4L2_CID_AUDIO_BASS
|
||||
V4L2_CID_AUDIO_TREBLE
|
||||
*/
|
||||
|
||||
/* FIXME - add stereo, lang1, lang2, mono menu */
|
||||
/* FIXME - add CS5345 I2S volume for HVR-1600 */
|
||||
|
||||
int __init snd_cx18_mixer_create(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
|
||||
struct snd_card *sc = cxsc->sc;
|
||||
int ret;
|
||||
|
||||
strlcpy(sc->mixername, "CX23418 Mixer", sizeof(sc->mixername));
|
||||
|
||||
ret = snd_ctl_add(sc, snd_ctl_new1(snd_cx18_mixer_tv_vol, cxsc));
|
||||
if (ret) {
|
||||
CX18_ALSA_WARN("%s: failed to add %s control, err %d\n",
|
||||
__func__, snd_cx18_mixer_tv_vol.name, ret);
|
||||
}
|
||||
return ret;
|
||||
}
|
23
drivers/media/video/cx18/cx18-alsa-mixer.h
Normal file
23
drivers/media/video/cx18/cx18-alsa-mixer.h
Normal file
|
@ -0,0 +1,23 @@
|
|||
/*
|
||||
* ALSA mixer controls for the
|
||||
* ALSA interface to cx18 PCM capture streams
|
||||
*
|
||||
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
* 02111-1307 USA
|
||||
*/
|
||||
|
||||
int __init snd_cx18_mixer_create(struct snd_cx18_card *cxsc);
|
303
drivers/media/video/cx18/cx18-alsa.c
Normal file
303
drivers/media/video/cx18/cx18-alsa.c
Normal file
|
@ -0,0 +1,303 @@
|
|||
/*
|
||||
* ALSA interface to cx18 PCM capture streams
|
||||
*
|
||||
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
* 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/spinlock.h>
|
||||
|
||||
#include <media/v4l2-device.h>
|
||||
|
||||
#include <sound/core.h>
|
||||
#include <sound/initval.h>
|
||||
|
||||
#include "cx18-driver.h"
|
||||
#include "cx18-alsa-mixer.h"
|
||||
#include "cx18-alsa-pcm.h"
|
||||
|
||||
int cx18_alsa_debug;
|
||||
|
||||
module_param_named(debug, cx18_alsa_debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug,
|
||||
"Debug level (bitmask). Default: 0\n"
|
||||
"\t\t\t 1/0x0001: warning\n"
|
||||
"\t\t\t 2/0x0002: info\n");
|
||||
|
||||
MODULE_AUTHOR("Andy Walls");
|
||||
MODULE_DESCRIPTION("CX23418 ALSA Interface");
|
||||
MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
MODULE_VERSION(CX18_VERSION);
|
||||
|
||||
static inline
|
||||
struct snd_cx18_card *to_snd_cx18_card(struct v4l2_device *v4l2_dev)
|
||||
{
|
||||
return to_cx18(v4l2_dev)->alsa;
|
||||
}
|
||||
|
||||
static inline
|
||||
struct snd_cx18_card *p_to_snd_cx18_card(struct v4l2_device **v4l2_dev)
|
||||
{
|
||||
return container_of(v4l2_dev, struct snd_cx18_card, v4l2_dev);
|
||||
}
|
||||
|
||||
static void snd_cx18_card_free(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
if (cxsc == NULL)
|
||||
return;
|
||||
|
||||
if (cxsc->v4l2_dev != NULL)
|
||||
to_cx18(cxsc->v4l2_dev)->alsa = NULL;
|
||||
|
||||
/* FIXME - take any other stopping actions needed */
|
||||
|
||||
kfree(cxsc);
|
||||
}
|
||||
|
||||
static void snd_cx18_card_private_free(struct snd_card *sc)
|
||||
{
|
||||
if (sc == NULL)
|
||||
return;
|
||||
snd_cx18_card_free(sc->private_data);
|
||||
sc->private_data = NULL;
|
||||
sc->private_free = NULL;
|
||||
}
|
||||
|
||||
static int __init snd_cx18_card_create(struct v4l2_device *v4l2_dev,
|
||||
struct snd_card *sc,
|
||||
struct snd_cx18_card **cxsc)
|
||||
{
|
||||
*cxsc = kzalloc(sizeof(struct snd_cx18_card), GFP_KERNEL);
|
||||
if (*cxsc == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
(*cxsc)->v4l2_dev = v4l2_dev;
|
||||
(*cxsc)->sc = sc;
|
||||
|
||||
sc->private_data = *cxsc;
|
||||
sc->private_free = snd_cx18_card_private_free;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init snd_cx18_card_set_names(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
|
||||
struct snd_card *sc = cxsc->sc;
|
||||
|
||||
/* sc->driver is used by alsa-lib's configurator: simple, unique */
|
||||
strlcpy(sc->driver, "CX23418", sizeof(sc->driver));
|
||||
|
||||
/* sc->shortname is a symlink in /proc/asound: CX18-M -> cardN */
|
||||
snprintf(sc->shortname, sizeof(sc->shortname), "CX18-%d",
|
||||
cx->instance);
|
||||
|
||||
/* sc->longname is read from /proc/asound/cards */
|
||||
snprintf(sc->longname, sizeof(sc->longname),
|
||||
"CX23418 #%d %s TV/FM Radio/Line-In Capture",
|
||||
cx->instance, cx->card_name);
|
||||
}
|
||||
|
||||
static int __init snd_cx18_init(struct v4l2_device *v4l2_dev)
|
||||
{
|
||||
struct cx18 *cx = to_cx18(v4l2_dev);
|
||||
struct snd_card *sc;
|
||||
struct snd_cx18_card *cxsc;
|
||||
int ret;
|
||||
|
||||
/* Numbrs steps from "Writing an ALSA Driver" by Takashi Iwai */
|
||||
|
||||
/* (1) Check and increment the device index */
|
||||
/* This is a no-op for us. We'll use the cx->instance */
|
||||
|
||||
/* (2) Create a card instance */
|
||||
ret = snd_card_create(SNDRV_DEFAULT_IDX1, /* use first available id */
|
||||
SNDRV_DEFAULT_STR1, /* xid from end of shortname*/
|
||||
THIS_MODULE, 0, &sc);
|
||||
if (ret) {
|
||||
CX18_ALSA_ERR("%s: snd_card_create() failed with err %d\n",
|
||||
__func__, ret);
|
||||
goto err_exit;
|
||||
}
|
||||
|
||||
/* (3) Create a main component */
|
||||
ret = snd_cx18_card_create(v4l2_dev, sc, &cxsc);
|
||||
if (ret) {
|
||||
CX18_ALSA_ERR("%s: snd_cx18_card_create() failed with err %d\n",
|
||||
__func__, ret);
|
||||
goto err_exit_free;
|
||||
}
|
||||
|
||||
/* (4) Set the driver ID and name strings */
|
||||
snd_cx18_card_set_names(cxsc);
|
||||
|
||||
/* (5) Create other components: mixer, PCM, & proc files */
|
||||
ret = snd_cx18_mixer_create(cxsc);
|
||||
if (ret) {
|
||||
CX18_ALSA_WARN("%s: snd_cx18_mixer_create() failed with err %d:"
|
||||
"proceeding anyway\n", __func__, ret);
|
||||
}
|
||||
|
||||
ret = snd_cx18_pcm_create(cxsc);
|
||||
if (ret) {
|
||||
CX18_ALSA_ERR("%s: snd_cx18_pcm_create() failed with err %d\n",
|
||||
__func__, ret);
|
||||
goto err_exit_free;
|
||||
}
|
||||
/* FIXME - proc files */
|
||||
|
||||
/* (7) Set the driver data and return 0 */
|
||||
/* We do this out of normal order for PCI drivers to avoid races */
|
||||
cx->alsa = cxsc;
|
||||
|
||||
/* (6) Register the card instance */
|
||||
ret = snd_card_register(sc);
|
||||
if (ret) {
|
||||
cx->alsa = NULL;
|
||||
CX18_ALSA_ERR("%s: snd_card_register() failed with err %d\n",
|
||||
__func__, ret);
|
||||
goto err_exit_free;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_exit_free:
|
||||
snd_card_free(sc);
|
||||
err_exit:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __init cx18_alsa_init_callback(struct device *dev, void *data)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
|
||||
int *count = data;
|
||||
struct cx18 *cx;
|
||||
struct cx18_stream *s;
|
||||
|
||||
if (v4l2_dev == NULL) {
|
||||
printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",
|
||||
__func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
cx = to_cx18(v4l2_dev);
|
||||
s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM];
|
||||
if (s->video_dev == NULL) {
|
||||
CX18_DEBUG_ALSA_INFO("%s: PCM stream for card is disabled - "
|
||||
"skipping\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (cx->alsa != NULL) {
|
||||
CX18_ALSA_ERR("%s: struct snd_cx18_card * already exists\n",
|
||||
__func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (snd_cx18_init(v4l2_dev)) {
|
||||
CX18_ALSA_ERR("%s: failed to create struct snd_cx18_card\n",
|
||||
__func__);
|
||||
} else {
|
||||
CX18_DEBUG_ALSA_INFO("%s: created cx18 ALSA interface instance "
|
||||
"%d\n", __func__, *count);
|
||||
(*count)++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init cx18_alsa_init(void)
|
||||
{
|
||||
struct device_driver *drv;
|
||||
int count = 0;
|
||||
int ret;
|
||||
|
||||
printk(KERN_INFO "cx18-alsa: module loading...\n");
|
||||
|
||||
drv = driver_find("cx18", &pci_bus_type);
|
||||
ret = driver_for_each_device(drv, NULL, &count,
|
||||
cx18_alsa_init_callback);
|
||||
put_driver(drv);
|
||||
|
||||
if (count == 0) {
|
||||
printk(KERN_ERR "cx18-alsa: no cx18 cards found with a PCM "
|
||||
"capture stream allocated\n");
|
||||
ret = -ENODEV;
|
||||
} else {
|
||||
printk(KERN_INFO "cx18-alsa: ALSA interface(s) created for %d "
|
||||
"cx18 card(s)\n", count);
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "cx18-alsa: module load complete\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void snd_cx18_exit(struct snd_cx18_card *cxsc)
|
||||
{
|
||||
struct cx18 *cx = to_cx18(cxsc->4l2_dev);
|
||||
|
||||
/* FIXME - pointer checks & shutdown cxsc */
|
||||
|
||||
snd_card_free(cxsc->sc);
|
||||
cx->alsa = NULL;
|
||||
}
|
||||
|
||||
static int cx18_alsa_exit_callback(struct device *dev, void *data)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
|
||||
struct snd_cx18_card *cxsc;
|
||||
struct cx18 *cx;
|
||||
|
||||
if (v4l2_dev == NULL) {
|
||||
printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",
|
||||
__func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
cxsc = to_snd_cx18_card(v4l2_dev);
|
||||
if (cxsc == NULL) {
|
||||
CX18_ALSA_WARN("%s: struct snd_cx18_card * is NULL\n",
|
||||
__func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
snd_cx18_exit(cxsc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cx18_alsa_exit(void)
|
||||
{
|
||||
struct device_driver *drv;
|
||||
int ret;
|
||||
|
||||
printk(KERN_INFO "cx18-alsa: module unloading...\n");
|
||||
|
||||
drv = driver_find("cx18", &pci_bus_type);
|
||||
ret = driver_for_each_device(drv, NULL, NULL, cx18_alsa_exit_callback);
|
||||
put_driver(drv);
|
||||
|
||||
printk(KERN_INFO "cx18-alsa: module unload complete\n");
|
||||
}
|
||||
|
||||
module_init(cx18_alsa_init);
|
||||
module_exit(cx18_alsa_exit);
|
55
drivers/media/video/cx18/cx18-alsa.h
Normal file
55
drivers/media/video/cx18/cx18-alsa.h
Normal file
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* ALSA interface to cx18 PCM capture streams
|
||||
*
|
||||
* Copyright (C) 2009 Andy Walls <awalls@radix.net>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
* 02111-1307 USA
|
||||
*/
|
||||
|
||||
struct snd_card;
|
||||
|
||||
struct snd_cx18_card {
|
||||
struct v4l2_device *v4l2_dev;
|
||||
struct snd_card *sc;
|
||||
};
|
||||
|
||||
extern int cx18_alsa_debug;
|
||||
|
||||
#define CX18_ALSA_DBGFLG_WARN (1 << 0)
|
||||
#define CX18_ALSA_DBGFLG_WARN (1 << 0)
|
||||
#define CX18_ALSA_DBGFLG_INFO (1 << 1)
|
||||
|
||||
#define CX18_ALSA_DEBUG(x, type, fmt, args...) \
|
||||
do { \
|
||||
if ((x) & cx18_alsa_debug) \
|
||||
printk(KERN_INFO "%s-alsa: " type ": " fmt, \
|
||||
v4l2_dev->name , ## args); \
|
||||
} while (0)
|
||||
|
||||
#define CX18_ALSA_DEBUG_WARN(fmt, args...) \
|
||||
CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
|
||||
|
||||
#define CX18_ALSA_DEBUG_INFO(fmt, args...) \
|
||||
CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_INFO, "info", fmt , ## args)
|
||||
|
||||
#define CX18_ALSA_ERR(fmt, args...) \
|
||||
printk(KERN_ERR "%s-alsa: " fmt, v4l2_dev->name , ## args)
|
||||
|
||||
#define CX18_ALSA_WARN(fmt, args...) \
|
||||
printk(KERN_WARNING "%s-alsa: " fmt, v4l2_dev->name , ## args)
|
||||
|
||||
#define CX18_ALSA_INFO(fmt, args...) \
|
||||
printk(KERN_INFO "%s-alsa: " fmt, v4l2_dev->name , ## args)
|
|
@ -574,6 +574,7 @@ struct cx18 {
|
|||
int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
|
||||
int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
|
||||
struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */
|
||||
struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
|
||||
unsigned long i_flags; /* global cx18 flags */
|
||||
atomic_t ana_capturing; /* count number of active analog capture streams */
|
||||
atomic_t tot_capturing; /* total count number of active capture streams */
|
||||
|
|
Loading…
Reference in a new issue