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path: root/drivers/media/usb/em28xx/em28xx-core.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-core.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-core.c69
1 files changed, 37 insertions, 32 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index fc157af5234a..31d6ab2555f2 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -608,46 +608,51 @@ int em28xx_capture_start(struct em28xx *dev, int start)
dev->chip_id == CHIP_ID_EM2884 ||
dev->chip_id == CHIP_ID_EM28174) {
/* The Transport Stream Enable Register moved in em2874 */
- if (!start) {
- rc = em28xx_write_reg_bits(dev, EM2874_R5F_TS_ENABLE,
- 0x00,
- EM2874_TS1_CAPTURE_ENABLE);
- return rc;
- }
-
- /* Enable Transport Stream */
rc = em28xx_write_reg_bits(dev, EM2874_R5F_TS_ENABLE,
- EM2874_TS1_CAPTURE_ENABLE,
+ start ?
+ EM2874_TS1_CAPTURE_ENABLE : 0x00,
EM2874_TS1_CAPTURE_ENABLE);
- return rc;
- }
-
+ } else {
+ /* FIXME: which is the best order? */
+ /* video registers are sampled by VREF */
+ rc = em28xx_write_reg_bits(dev, EM28XX_R0C_USBSUSP,
+ start ? 0x10 : 0x00, 0x10);
+ if (rc < 0)
+ return rc;
- /* FIXME: which is the best order? */
- /* video registers are sampled by VREF */
- rc = em28xx_write_reg_bits(dev, EM28XX_R0C_USBSUSP,
- start ? 0x10 : 0x00, 0x10);
- if (rc < 0)
- return rc;
+ if (start) {
+ if (dev->board.is_webcam)
+ rc = em28xx_write_reg(dev, 0x13, 0x0c);
- if (!start) {
- /* disable video capture */
- rc = em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x27);
- return rc;
- }
+ /* Enable video capture */
+ rc = em28xx_write_reg(dev, 0x48, 0x00);
- if (dev->board.is_webcam)
- rc = em28xx_write_reg(dev, 0x13, 0x0c);
+ if (dev->mode == EM28XX_ANALOG_MODE)
+ rc = em28xx_write_reg(dev,
+ EM28XX_R12_VINENABLE, 0x67);
+ else
+ rc = em28xx_write_reg(dev,
+ EM28XX_R12_VINENABLE, 0x37);
- /* enable video capture */
- rc = em28xx_write_reg(dev, 0x48, 0x00);
+ msleep(6);
+ } else {
+ /* disable video capture */
+ rc = em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x27);
+ }
+ }
- if (dev->mode == EM28XX_ANALOG_MODE)
- rc = em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x67);
- else
- rc = em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x37);
+ if (rc < 0)
+ return rc;
- msleep(6);
+ /* Switch (explicitly controlled) analog capturing LED on/off */
+ if ((dev->mode == EM28XX_ANALOG_MODE)
+ && dev->board.analog_capturing_led) {
+ struct em28xx_led *led = dev->board.analog_capturing_led;
+ em28xx_write_reg_bits(dev, led->gpio_reg,
+ (!start ^ led->inverted) ?
+ ~led->gpio_mask : led->gpio_mask,
+ led->gpio_mask);
+ }
return rc;
}