diff options
author | Lubomir Rintel <lkundrak@v3.sk> | 2013-07-12 08:03:03 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-07-26 16:29:29 (GMT) |
commit | 2206112b157d0ba736bead38eaf04b4ade24ece7 (patch) | |
tree | 302945649d581c9096c545af6340474fcbee0b03 /drivers | |
parent | ac22521cb2dc07e0b2193868c647dee5d737f85a (diff) | |
download | linux-fsl-qoriq-2206112b157d0ba736bead38eaf04b4ade24ece7.tar.xz |
[media] usbtv: Add S-Video input support
Alongside already existing Composite input.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/media/usb/usbtv/usbtv.c | 99 |
1 files changed, 82 insertions, 17 deletions
diff --git a/drivers/media/usb/usbtv/usbtv.c b/drivers/media/usb/usbtv/usbtv.c index bf43f87..b164e54 100644 --- a/drivers/media/usb/usbtv/usbtv.c +++ b/drivers/media/usb/usbtv/usbtv.c @@ -90,17 +90,78 @@ struct usbtv { * out when a new one begins. */ u32 frame_id; + enum { + USBTV_COMPOSITE_INPUT, + USBTV_SVIDEO_INPUT, + } input; int iso_size; unsigned int sequence; struct urb *isoc_urbs[USBTV_ISOC_TRANSFERS]; }; -static int usbtv_setup_capture(struct usbtv *usbtv) +static int usbtv_set_regs(struct usbtv *usbtv, const u16 regs[][2], int size) { int ret; int pipe = usb_rcvctrlpipe(usbtv->udev, 0); int i; - static const u16 protoregs[][2] = { + + for (i = 0; i < size; i++) { + u16 index = regs[i][0]; + u16 value = regs[i][1]; + + ret = usb_control_msg(usbtv->udev, pipe, USBTV_REQUEST_REG, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, NULL, 0, 0); + if (ret < 0) + return ret; + } + + return 0; +} + +static int usbtv_select_input(struct usbtv *usbtv, int input) +{ + int ret; + + static const u16 composite[][2] = { + { USBTV_BASE + 0x0105, 0x0060 }, + { USBTV_BASE + 0x011f, 0x00f2 }, + { USBTV_BASE + 0x0127, 0x0060 }, + { USBTV_BASE + 0x00ae, 0x0010 }, + { USBTV_BASE + 0x0284, 0x00aa }, + { USBTV_BASE + 0x0239, 0x0060 }, + }; + + static const u16 svideo[][2] = { + { USBTV_BASE + 0x0105, 0x0010 }, + { USBTV_BASE + 0x011f, 0x00ff }, + { USBTV_BASE + 0x0127, 0x0060 }, + { USBTV_BASE + 0x00ae, 0x0030 }, + { USBTV_BASE + 0x0284, 0x0088 }, + { USBTV_BASE + 0x0239, 0x0060 }, + }; + + switch (input) { + case USBTV_COMPOSITE_INPUT: + ret = usbtv_set_regs(usbtv, composite, ARRAY_SIZE(composite)); + break; + case USBTV_SVIDEO_INPUT: + ret = usbtv_set_regs(usbtv, svideo, ARRAY_SIZE(svideo)); + break; + default: + ret = -EINVAL; + } + + if (!ret) + usbtv->input = input; + + return ret; +} + +static int usbtv_setup_capture(struct usbtv *usbtv) +{ + int ret; + static const u16 setup[][2] = { /* These seem to enable the device. */ { USBTV_BASE + 0x0008, 0x0001 }, { USBTV_BASE + 0x01d0, 0x00ff }, @@ -188,16 +249,13 @@ static int usbtv_setup_capture(struct usbtv *usbtv) { USBTV_BASE + 0x024f, 0x0002 }, }; - for (i = 0; i < ARRAY_SIZE(protoregs); i++) { - u16 index = protoregs[i][0]; - u16 value = protoregs[i][1]; + ret = usbtv_set_regs(usbtv, setup, ARRAY_SIZE(setup)); + if (ret) + return ret; - ret = usb_control_msg(usbtv->udev, pipe, USBTV_REQUEST_REG, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, index, NULL, 0, 0); - if (ret < 0) - return ret; - } + ret = usbtv_select_input(usbtv, usbtv->input); + if (ret) + return ret; return 0; } @@ -418,10 +476,17 @@ static int usbtv_querycap(struct file *file, void *priv, static int usbtv_enum_input(struct file *file, void *priv, struct v4l2_input *i) { - if (i->index > 0) + switch (i->index) { + case USBTV_COMPOSITE_INPUT: + strlcpy(i->name, "Composite", sizeof(i->name)); + break; + case USBTV_SVIDEO_INPUT: + strlcpy(i->name, "S-Video", sizeof(i->name)); + break; + default: return -EINVAL; + } - strlcpy(i->name, "Composite", sizeof(i->name)); i->type = V4L2_INPUT_TYPE_CAMERA; i->std = V4L2_STD_525_60; return 0; @@ -461,15 +526,15 @@ static int usbtv_g_std(struct file *file, void *priv, v4l2_std_id *norm) static int usbtv_g_input(struct file *file, void *priv, unsigned int *i) { - *i = 0; + struct usbtv *usbtv = video_drvdata(file); + *i = usbtv->input; return 0; } static int usbtv_s_input(struct file *file, void *priv, unsigned int i) { - if (i > 0) - return -EINVAL; - return 0; + struct usbtv *usbtv = video_drvdata(file); + return usbtv_select_input(usbtv, i); } static int usbtv_s_std(struct file *file, void *priv, v4l2_std_id norm) |