From c67ec53f8f4e90ebd482789e2f6d121f41a0bd90 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 17 Apr 2008 21:48:00 -0300 Subject: V4L/DVB (7615): em28xx: Provide the proper support for switching between analog/digital Before this patch, HVR900/HVR950 were incorreclty going back to analog. The result is that only digital were working. This patch provides the proper setup for analog/digital and tuner callback. It also properly resets analog into a sane state at open(). Thanks to Steven Toth and Michael Krufky for helping to set the proper parameters to GPO/GPIO em2883 ports. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-video.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers/media/video/em28xx/em28xx-video.c') diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index fb533fda219..4ffd064c402 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -461,7 +461,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, if (urb_init) { rc = em28xx_init_isoc(dev, EM28XX_NUM_PACKETS, EM28XX_NUM_BUFS, dev->max_pkt_size, - em28xx_isoc_copy, EM28XX_ANALOG_CAPTURE); + em28xx_isoc_copy); if (rc < 0) goto fail; } @@ -1534,8 +1534,8 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) em28xx_videodbg("open minor=%d type=%s users=%d\n", minor, v4l2_type_names[fh_type], dev->users); - fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); + fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); if (!fh) { em28xx_errdev("em28xx-video.c: Out of memory?!\n"); return -ENOMEM; @@ -1552,9 +1552,15 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) dev->hscale = 0; dev->vscale = 0; + em28xx_set_mode(dev, EM28XX_ANALOG_MODE); em28xx_set_alternate(dev); em28xx_resolution_set(dev); + /* Needed, since GPIO might have disabled power of + some i2c device + */ + em28xx_config_i2c(dev); + } if (fh->radio) { em28xx_videodbg("video_open: setting radio device\n"); @@ -1568,6 +1574,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp) sizeof(struct em28xx_buffer), fh); mutex_unlock(&dev->lock); + return errCode; } @@ -1647,6 +1654,7 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp) /* do this before setting alternate! */ em28xx_uninit_isoc(dev); + em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED); /* set alternate 0 */ dev->alt = 0; -- cgit v1.2.3-70-g09d2