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| author |   Hans Verkuil <hans.verkuil@cisco.com> | 2012-09-09 09:23:31 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-05 14:00:16 -0300 |
| commit | 1b9e94dc69959e963fe57ede46259f792641af4d (patch) | |
| tree | ad4c224da8280c427076aff7d3e20914bf2be3ea /drivers/media/pci/bt8xx/bttv-driver.c | |
| parent | [media] bttv: fix querycap and radio v4l2-compliance issues (diff) | |
| download | linux-dev-1b9e94dc69959e963fe57ede46259f792641af4d.tar.xz linux-dev-1b9e94dc69959e963fe57ede46259f792641af4d.zip | |
[media] bttv: add VIDIOC_DBG_G_CHIP_IDENT
VIDIOC_DBG_G_CHIP_IDENT is a prerequisite for the G/S_REGISTER ioctls.
In addition, add support to call G/S_REGISTER for supporting i2c devices.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/pci/bt8xx/bttv-driver.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index cc7f58f94cde..b36d67577535 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -49,6 +49,7 @@ #include "bttvp.h" #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-chip-ident.h> #include <media/tvaudio.h> #include <media/msp3400.h> @@ -2059,6 +2060,28 @@ static int bttv_log_status(struct file *file, void *f) return 0; } +static int bttv_g_chip_ident(struct file *file, void *f, struct v4l2_dbg_chip_ident *chip) +{ + struct bttv_fh *fh = f; + struct bttv *btv = fh->btv; + + chip->ident = V4L2_IDENT_NONE; + chip->revision = 0; + if (chip->match.type == V4L2_CHIP_MATCH_HOST) { + if (v4l2_chip_match_host(&chip->match)) { + chip->ident = btv->id; + if (chip->ident == PCI_DEVICE_ID_FUSION879) + chip->ident = V4L2_IDENT_BT879; + } + return 0; + } + if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER && + chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) + return -EINVAL; + /* TODO: is this correct? */ + return bttv_call_all_err(btv, core, g_chip_ident, chip); +} + #ifdef CONFIG_VIDEO_ADV_DEBUG static int bttv_g_register(struct file *file, void *f, struct v4l2_dbg_register *reg) @@ -2069,8 +2092,12 @@ static int bttv_g_register(struct file *file, void *f, if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; + if (!v4l2_chip_match_host(®->match)) { + /* TODO: subdev errors should not be ignored, this should become a + subdev helper function. */ + bttv_call_all(btv, core, g_register, reg); + return 0; + } /* bt848 has a 12-bit register space */ reg->reg &= 0xfff; @@ -2089,8 +2116,12 @@ static int bttv_s_register(struct file *file, void *f, if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; + if (!v4l2_chip_match_host(®->match)) { + /* TODO: subdev errors should not be ignored, this should become a + subdev helper function. */ + bttv_call_all(btv, core, s_register, reg); + return 0; + } /* bt848 has a 12-bit register space */ reg->reg &= 0xfff; @@ -3394,6 +3425,7 @@ static const struct v4l2_ioctl_ops bttv_ioctl_ops = { .vidioc_s_frequency = bttv_s_frequency, .vidioc_log_status = bttv_log_status, .vidioc_querystd = bttv_querystd, + .vidioc_g_chip_ident = bttv_g_chip_ident, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_register = bttv_g_register, .vidioc_s_register = bttv_s_register, |