From 5e28e00964cdc90dec5ebb4c00dfa2fc1ecf36fa Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 13 Apr 2008 15:06:24 -0300 Subject: V4L/DVB (7558): videobuf: Improve command output for debug purposes Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/videodev.c | 57 ++++++++++++++++++++++++------------------ 1 file changed, 32 insertions(+), 25 deletions(-) (limited to 'drivers/media/video/videodev.c') diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 0bf056622d6..4c4ee566d25 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -18,9 +18,9 @@ #define dbgarg(cmd, fmt, arg...) \ if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ - printk (KERN_DEBUG "%s: ", vfd->name); \ + printk(KERN_DEBUG "%s: ", vfd->name); \ v4l_printk_ioctl(cmd); \ - printk (KERN_DEBUG "%s: " fmt, vfd->name, ## arg); \ + printk(" " fmt, ## arg); \ } #define dbgarg2(fmt, arg...) \ @@ -378,38 +378,45 @@ static const char *v4l2_int_ioctls[] = { external ioctl messages as well as internal V4L ioctl */ void v4l_printk_ioctl(unsigned int cmd) { - char *dir; + char *dir, *type; - switch (_IOC_DIR(cmd)) { - case _IOC_NONE: dir = "--"; break; - case _IOC_READ: dir = "r-"; break; - case _IOC_WRITE: dir = "-w"; break; - case _IOC_READ | _IOC_WRITE: dir = "rw"; break; - default: dir = "*ERR*"; break; - } switch (_IOC_TYPE(cmd)) { case 'd': - printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ? - v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; + if (_IOC_NR(cmd) >= V4L2_INT_IOCTLS) { + type = "v4l2_int"; + break; + } + printk("%s", v4l2_int_ioctls[_IOC_NR(cmd)]); + return; #ifdef CONFIG_VIDEO_V4L1_COMPAT case 'v': - printk("v4l1 ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L1_IOCTLS) ? - v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; + if (_IOC_NR(cmd) >= V4L1_IOCTLS) { + type = "v4l1"; + break; + } + printk("%s", v4l1_ioctls[_IOC_NR(cmd)]); + return; #endif case 'V': - printk("v4l2 ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L2_IOCTLS) ? - v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; - + if (_IOC_NR(cmd) >= V4L2_IOCTLS) { + type = "v4l2"; + break; + } + printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); + return; default: - printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n", - _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); + type = "unknown"; + } + + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: dir = "--"; break; + case _IOC_READ: dir = "r-"; break; + case _IOC_WRITE: dir = "-w"; break; + case _IOC_READ | _IOC_WRITE: dir = "rw"; break; + default: dir = "*ERR*"; break; } + printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", + type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); } EXPORT_SYMBOL(v4l_printk_ioctl); -- cgit v1.2.3