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[media] exynos4-is: Fix driver name reported in vidioc_querycap 

Originally struct v4l2_capability driver and card name was filled
with name of the platform device. After switching to the device tree
the device names have changed and now are 4 different driver names
reported, depending on the video device opened. So instead of e.g.
"exynos4-fimc" there is now one of: 11800000.fimc, 11810000.fimc,
11820000.fimc, 11830000.fimc.
Fix this by using dev->driver_name, rather than platform device name.
A common vidioc_querycap function is created for both M2M and capture
video node.
This fixes any breakage at user space should any application/library
rely on the driver's name.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2013-04-23 11:36:04 -03:00 committed by Mauro Carvalho Chehab
parent d68b44e088
commit aceb59ed34
4 changed files with 24 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/media/platform/exynos4-is/fimc-capture.c
View File

@ -742,16 +742,13 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
/*
* The video node ioctl operations
*/
static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
static int fimc_cap_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct fimc_dev *fimc = video_drvdata(file);
strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
cap->bus_info[0] = 0;
cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
__fimc_vidioc_querycap(&fimc->pdev->dev, cap, V4L2_CAP_STREAMING |
V4L2_CAP_VIDEO_CAPTURE_MPLANE);
return 0;
}
@ -1375,7 +1372,7 @@ static int fimc_cap_s_selection(struct file *file, void *fh,
}
static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
.vidioc_querycap = fimc_vidioc_querycap_capture,
.vidioc_querycap = fimc_cap_querycap,
.vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
.vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,

13
drivers/media/platform/exynos4-is/fimc-core.c
View File

@ -213,6 +213,17 @@ struct fimc_fmt *fimc_get_format(unsigned int index)
return &fimc_formats[index];
}
void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap,
unsigned int caps)
{
strlcpy(cap->driver, dev->driver->name, sizeof(cap->driver));
strlcpy(cap->card, dev->driver->name, sizeof(cap->card));
snprintf(cap->bus_info, sizeof(cap->bus_info),
"platform:%s", dev_name(dev));
cap->device_caps = caps;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
}
int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
int dw, int dh, int rotation)
{
@ -1283,7 +1294,7 @@ static struct platform_driver fimc_driver = {
.id_table = fimc_driver_ids,
.driver = {
.of_match_table = fimc_of_match,
.name = FIMC_MODULE_NAME,
.name = FIMC_DRIVER_NAME,
.owner = THIS_MODULE,
.pm = &fimc_pm_ops,
}

4
drivers/media/platform/exynos4-is/fimc-core.h
View File

@ -35,7 +35,7 @@
/* Time to wait for next frame VSYNC interrupt while stopping operation. */
#define FIMC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)
#define MAX_FIMC_CLOCKS 2
#define FIMC_MODULE_NAME "s5p-fimc"
#define FIMC_DRIVER_NAME "exynos4-fimc"
#define FIMC_MAX_DEVS 4
#define FIMC_MAX_OUT_BUFS 4
#define SCALER_MAX_HRATIO 64
@ -620,6 +620,8 @@ static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
/* fimc-core.c */
int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
struct v4l2_fmtdesc *f);
void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap,
unsigned int caps);
int fimc_ctrls_create(struct fimc_ctx *ctx);
void fimc_ctrls_delete(struct fimc_ctx *ctx);
void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);

12
drivers/media/platform/exynos4-is/fimc-m2m.c
View File

@ -249,22 +249,20 @@ static struct vb2_ops fimc_qops = {
* V4L2 ioctl handlers
*/
static int fimc_m2m_querycap(struct file *file, void *fh,
struct v4l2_capability *cap)
struct v4l2_capability *cap)
{
struct fimc_ctx *ctx = fh_to_ctx(fh);
struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_dev *fimc = video_drvdata(file);
unsigned int caps;
strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
cap->bus_info[0] = 0;
/*
* This is only a mem-to-mem video device. The capture and output
* device capability flags are left only for backward compatibility
* and are scheduled for removal.
*/
cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE |
caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE |
V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
__fimc_vidioc_querycap(&fimc->pdev->dev, cap, caps);
return 0;
}