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media: em28xx: stop rewriting device's struct 

Writing at the device's struct is evil, as two em28xx devices
may be using it. So, stop abusing it, storing the values
inside struct em28xx_dev.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2018-03-01 10:08:42 -05:00
parent 6cda90b63e
commit aa62980be4
4 changed files with 25 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/media/usb/em28xx/em28xx-cards.c
View File

@ -2712,6 +2712,8 @@ static inline void em28xx_set_xclk_i2c_speed(struct em28xx *dev)
static inline void em28xx_set_model(struct em28xx *dev)
{
dev->board = em28xx_boards[dev->model];
dev->has_msp34xx = dev->board.has_msp34xx;
dev->is_webcam = dev->board.is_webcam;
em28xx_set_xclk_i2c_speed(dev);
@ -2871,7 +2873,7 @@ static int em28xx_hint_board(struct em28xx *dev)
{
int i;
if (dev->board.is_webcam) {
if (dev->is_webcam) {
if (dev->em28xx_sensor == EM28XX_MT9V011) {
dev->model = EM2820_BOARD_SILVERCREST_WEBCAM;
} else if (dev->em28xx_sensor == EM28XX_MT9M001 ||
@ -2963,11 +2965,11 @@ static void em28xx_card_setup(struct em28xx *dev)
* If the device can be a webcam, seek for a sensor.
* If sensor is not found, then it isn't a webcam.
*/
if (dev->board.is_webcam) {
if (dev->is_webcam) {
em28xx_detect_sensor(dev);
if (dev->em28xx_sensor == EM28XX_NOSENSOR)
/* NOTE: error/unknown sensor/no sensor */
dev->board.is_webcam = 0;
dev->is_webcam = 0;
}
switch (dev->model) {
@ -3029,7 +3031,7 @@ static void em28xx_card_setup(struct em28xx *dev)
if (tv.audio_processor == TVEEPROM_AUDPROC_MSP) {
dev->i2s_speed = 2048000;
dev->board.has_msp34xx = 1;
dev->has_msp34xx = 1;
}
break;
}
@ -3742,7 +3744,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
}
if (usb_xfer_mode < 0) {
if (dev->board.is_webcam)
if (dev->is_webcam)
try_bulk = 1;
else
try_bulk = 0;
@ -3794,7 +3796,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
dev->dev_next->board.has_ir_i2c = 0; /* No IR for 2nd tuner */
if (usb_xfer_mode < 0) {
if (dev->dev_next->board.is_webcam)
if (dev->dev_next->is_webcam)
try_bulk = 1;
else
try_bulk = 0;

4
drivers/media/usb/em28xx/em28xx-core.c
View File

@ -378,7 +378,7 @@ static int em28xx_set_audio_source(struct em28xx *dev)
return ret;
}
if (dev->board.has_msp34xx)
if (dev->has_msp34xx)
input = EM28XX_AUDIO_SRC_TUNER;
else {
switch (dev->ctl_ainput) {
@ -672,7 +672,7 @@ int em28xx_capture_start(struct em28xx *dev, int start)
return rc;
if (start) {
if (dev->board.is_webcam)
if (dev->is_webcam)
rc = em28xx_write_reg(dev, 0x13, 0x0c);
/* Enable video capture */

26
drivers/media/usb/em28xx/em28xx-video.c
View File

@ -148,7 +148,7 @@ static inline unsigned int norm_maxw(struct em28xx *dev)
{
struct em28xx_v4l2 *v4l2 = dev->v4l2;
if (dev->board.is_webcam)
if (dev->is_webcam)
return v4l2->sensor_xres;
if (dev->board.max_range_640_480)
@ -161,7 +161,7 @@ static inline unsigned int norm_maxh(struct em28xx *dev)
{
struct em28xx_v4l2 *v4l2 = dev->v4l2;
if (dev->board.is_webcam)
if (dev->is_webcam)
return v4l2->sensor_yres;
if (dev->board.max_range_640_480)
@ -176,7 +176,7 @@ static int em28xx_vbi_supported(struct em28xx *dev)
if (disable_vbi == 1)
return 0;
if (dev->board.is_webcam)
if (dev->is_webcam)
return 0;
/* FIXME: check subdevices for VBI support */
@ -976,7 +976,7 @@ static void em28xx_v4l2_create_entities(struct em28xx *dev)
}
/* Webcams don't have input connectors */
if (dev->board.is_webcam)
if (dev->is_webcam)
return;
/* Create entities for each input connector */
@ -1277,7 +1277,7 @@ static void video_mux(struct em28xx *dev, int index)
v4l2_device_call_all(v4l2_dev, 0, video, s_routing,
INPUT(index)->vmux, 0, 0);
if (dev->board.has_msp34xx) {
if (dev->has_msp34xx) {
if (dev->i2s_speed) {
v4l2_device_call_all(v4l2_dev, 0, audio,
s_i2s_clock_freq, dev->i2s_speed);
@ -1593,7 +1593,7 @@ static int vidioc_g_parm(struct file *file, void *priv,
p->parm.capture.readbuffers = EM28XX_MIN_BUF;
p->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
if (dev->board.is_webcam) {
if (dev->is_webcam) {
rc = v4l2_device_call_until_err(&v4l2->v4l2_dev, 0,
video, g_frame_interval, &ival);
if (!rc)
@ -1616,7 +1616,7 @@ static int vidioc_s_parm(struct file *file, void *priv,
};
int rc = 0;
if (!dev->board.is_webcam)
if (!dev->is_webcam)
return -ENOTTY;
if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
@ -1655,7 +1655,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
i->std = dev->v4l2->vdev.tvnorms;
/* webcams do not have the STD API */
if (dev->board.is_webcam)
if (dev->is_webcam)
i->capabilities = 0;
return 0;
@ -2369,7 +2369,7 @@ static void em28xx_vdev_init(struct em28xx *dev,
*vfd = *template;
vfd->v4l2_dev = &dev->v4l2->v4l2_dev;
vfd->lock = &dev->lock;
if (dev->board.is_webcam)
if (dev->is_webcam)
vfd->tvnorms = 0;
snprintf(vfd->name, sizeof(vfd->name), "%s %s",
@ -2484,7 +2484,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
v4l2_ctrl_handler_init(hdl, 8);
v4l2->v4l2_dev.ctrl_handler = hdl;
if (dev->board.is_webcam)
if (dev->is_webcam)
v4l2->progressive = true;
/*
@ -2496,7 +2496,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
/* request some modules */
if (dev->board.has_msp34xx)
if (dev->has_msp34xx)
v4l2_i2c_new_subdev(&v4l2->v4l2_dev,
&dev->i2c_adap[dev->def_i2c_bus],
"msp3400", 0, msp3400_addrs);
@ -2585,7 +2585,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
INIT_LIST_HEAD(&dev->vidq.active);
INIT_LIST_HEAD(&dev->vbiq.active);
if (dev->board.has_msp34xx) {
if (dev->has_msp34xx) {
/* Send a reset to other chips via gpio */
ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7);
if (ret < 0) {
@ -2679,7 +2679,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
v4l2->vdev.queue->lock = &v4l2->vb_queue_lock;
/* disable inapplicable ioctls */
if (dev->board.is_webcam) {
if (dev->is_webcam) {
v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_QUERYSTD);
v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_G_STD);
v4l2_disable_ioctl(&v4l2->vdev, VIDIOC_S_STD);

2
drivers/media/usb/em28xx/em28xx.h
View File

@ -623,6 +623,8 @@ struct em28xx {
unsigned char disconnected:1; /* device has been diconnected */
unsigned int has_video:1;
unsigned int is_audio_only:1;
unsigned int is_webcam:1;
unsigned int has_msp34xx:1;
enum em28xx_int_audio_type int_audio_type;
enum em28xx_usb_audio_type usb_audio_type;
unsigned char name[32];