diff options
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 328 |
1 files changed, 133 insertions, 195 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index be89dade6e2..7556678846f 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -183,6 +183,63 @@ static const char *v4l2_memory_names[] = { /* ------------------------------------------------------------------ */ /* debug help functions */ +static void v4l_print_querycap(const void *arg, bool write_only) +{ + const struct v4l2_capability *p = arg; + + pr_cont("driver=%s, card=%s, bus=%s, version=0x%08x, " + "capabilities=0x%08x, device_caps=0x%08x\n", + p->driver, p->card, p->bus_info, + p->version, p->capabilities, p->device_caps); +} + +static void v4l_print_enuminput(const void *arg, bool write_only) +{ + const struct v4l2_input *p = arg; + + pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, tuner=%u, " + "std=0x%08Lx, status=0x%x, capabilities=0x%x\n", + p->index, p->name, p->type, p->audioset, p->tuner, + (unsigned long long)p->std, p->status, p->capabilities); +} + +static void v4l_print_enumoutput(const void *arg, bool write_only) +{ + const struct v4l2_output *p = arg; + + pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, " + "modulator=%u, std=0x%08Lx, capabilities=0x%x\n", + p->index, p->name, p->type, p->audioset, p->modulator, + (unsigned long long)p->std, p->capabilities); +} + +static void v4l_print_audio(const void *arg, bool write_only) +{ + const struct v4l2_audio *p = arg; + + if (write_only) + pr_cont("index=%u, mode=0x%x\n", p->index, p->mode); + else + pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n", + p->index, p->name, p->capability, p->mode); +} + +static void v4l_print_audioout(const void *arg, bool write_only) +{ + const struct v4l2_audioout *p = arg; + + if (write_only) + pr_cont("index=%u\n", p->index); + else + pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n", + p->index, p->name, p->capability, p->mode); +} + +static void v4l_print_u32(const void *arg, bool write_only) +{ + pr_cont("value=%u\n", *(const u32 *)arg); +} + static void dbgbuf(unsigned int cmd, struct video_device *vfd, struct v4l2_buffer *p) { @@ -392,6 +449,69 @@ static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) return -EINVAL; } +static int v4l_querycap(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct v4l2_capability *cap = (struct v4l2_capability *)arg; + + cap->version = LINUX_VERSION_CODE; + return ops->vidioc_querycap(file, fh, cap); +} + +static int v4l_s_input(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + return ops->vidioc_s_input(file, fh, *(unsigned int *)arg); +} + +static int v4l_s_output(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + return ops->vidioc_s_output(file, fh, *(unsigned int *)arg); +} + +static int v4l_enuminput(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct v4l2_input *p = arg; + + /* + * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & + * CAP_STD here based on ioctl handler provided by the + * driver. If the driver doesn't support these + * for a specific input, it must override these flags. + */ + if (ops->vidioc_s_std) + p->capabilities |= V4L2_IN_CAP_STD; + if (ops->vidioc_s_dv_preset) + p->capabilities |= V4L2_IN_CAP_PRESETS; + if (ops->vidioc_s_dv_timings) + p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; + + return ops->vidioc_enum_input(file, fh, p); +} + +static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops, + struct file *file, void *fh, void *arg) +{ + struct v4l2_output *p = arg; + + /* + * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & + * CAP_STD here based on ioctl handler provided by the + * driver. If the driver doesn't support these + * for a specific output, it must override these flags. + */ + if (ops->vidioc_s_std) + p->capabilities |= V4L2_OUT_CAP_STD; + if (ops->vidioc_s_dv_preset) + p->capabilities |= V4L2_OUT_CAP_PRESETS; + if (ops->vidioc_s_dv_timings) + p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; + + return ops->vidioc_enum_output(file, fh, p); +} + struct v4l2_ioctl_info { unsigned int ioctl; u32 flags; @@ -443,7 +563,7 @@ struct v4l2_ioctl_info { } static struct v4l2_ioctl_info v4l2_ioctls[] = { - IOCTL_INFO(VIDIOC_QUERYCAP, 0), + IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)), IOCTL_INFO(VIDIOC_G_FMT, INFO_FL_CLEAR(v4l2_format, type)), IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO), @@ -461,22 +581,22 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = { IOCTL_INFO(VIDIOC_G_STD, 0), IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_ENUMSTD, INFO_FL_CLEAR(v4l2_standard, index)), - IOCTL_INFO(VIDIOC_ENUMINPUT, INFO_FL_CLEAR(v4l2_input, index)), + IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), IOCTL_INFO(VIDIOC_G_TUNER, INFO_FL_CLEAR(v4l2_tuner, index)), IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_AUDIO, 0), - IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO), + IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), + IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), - IOCTL_INFO(VIDIOC_G_INPUT, 0), - IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_OUTPUT, INFO_FL_CLEAR(v4l2_output, index)), - IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), - IOCTL_INFO(VIDIOC_G_AUDOUT, 0), - IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO), + IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), + IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), + IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), + IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO), + IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)), + IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0), + IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_G_MODULATOR, INFO_FL_CLEAR(v4l2_modulator, index)), IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_G_FREQUENCY, INFO_FL_CLEAR(v4l2_frequency, tuner)), @@ -490,8 +610,8 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = { IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_QUERYSTD, 0), IOCTL_INFO(VIDIOC_TRY_FMT, 0), - IOCTL_INFO(VIDIOC_ENUMAUDIO, INFO_FL_CLEAR(v4l2_audio, index)), - IOCTL_INFO(VIDIOC_ENUMAUDOUT, INFO_FL_CLEAR(v4l2_audioout, index)), + IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)), + IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)), IOCTL_INFO(VIDIOC_G_PRIORITY, 0), IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO), IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)), @@ -631,25 +751,6 @@ static long __video_do_ioctl(struct file *file, switch (cmd) { - /* --- capabilities ------------------------------------------ */ - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *cap = (struct v4l2_capability *)arg; - - cap->version = LINUX_VERSION_CODE; - ret = ops->vidioc_querycap(file, fh, cap); - if (!ret) - dbgarg(cmd, "driver=%s, card=%s, bus=%s, " - "version=0x%08x, " - "capabilities=0x%08x, " - "device_caps=0x%08x\n", - cap->driver, cap->card, cap->bus_info, - cap->version, - cap->capabilities, - cap->device_caps); - break; - } - /* --- priority ------------------------------------------ */ case VIDIOC_G_PRIORITY: { @@ -1164,98 +1265,6 @@ static long __video_do_ioctl(struct file *file, (unsigned long long)*p); break; } - /* ------ input switching ---------- */ - /* FIXME: Inputs can be handled inside videodev2 */ - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *p = arg; - - /* - * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & - * CAP_STD here based on ioctl handler provided by the - * driver. If the driver doesn't support these - * for a specific input, it must override these flags. - */ - if (ops->vidioc_s_std) - p->capabilities |= V4L2_IN_CAP_STD; - if (ops->vidioc_s_dv_preset) - p->capabilities |= V4L2_IN_CAP_PRESETS; - if (ops->vidioc_s_dv_timings) - p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; - - ret = ops->vidioc_enum_input(file, fh, p); - if (!ret) - dbgarg(cmd, "index=%d, name=%s, type=%d, " - "audioset=%d, " - "tuner=%d, std=%08Lx, status=%d\n", - p->index, p->name, p->type, p->audioset, - p->tuner, - (unsigned long long)p->std, - p->status); - break; - } - case VIDIOC_G_INPUT: - { - unsigned int *i = arg; - - ret = ops->vidioc_g_input(file, fh, i); - if (!ret) - dbgarg(cmd, "value=%d\n", *i); - break; - } - case VIDIOC_S_INPUT: - { - unsigned int *i = arg; - - dbgarg(cmd, "value=%d\n", *i); - ret = ops->vidioc_s_input(file, fh, *i); - break; - } - - /* ------ output switching ---------- */ - case VIDIOC_ENUMOUTPUT: - { - struct v4l2_output *p = arg; - - /* - * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & - * CAP_STD here based on ioctl handler provided by the - * driver. If the driver doesn't support these - * for a specific output, it must override these flags. - */ - if (ops->vidioc_s_std) - p->capabilities |= V4L2_OUT_CAP_STD; - if (ops->vidioc_s_dv_preset) - p->capabilities |= V4L2_OUT_CAP_PRESETS; - if (ops->vidioc_s_dv_timings) - p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; - - ret = ops->vidioc_enum_output(file, fh, p); - if (!ret) - dbgarg(cmd, "index=%d, name=%s, type=%d, " - "audioset=0x%x, " - "modulator=%d, std=0x%08Lx\n", - p->index, p->name, p->type, p->audioset, - p->modulator, (unsigned long long)p->std); - break; - } - case VIDIOC_G_OUTPUT: - { - unsigned int *i = arg; - - ret = ops->vidioc_g_output(file, fh, i); - if (!ret) - dbgarg(cmd, "value=%d\n", *i); - break; - } - case VIDIOC_S_OUTPUT: - { - unsigned int *i = arg; - - dbgarg(cmd, "value=%d\n", *i); - ret = ops->vidioc_s_output(file, fh, *i); - break; - } /* --- controls ---------------------------------------------- */ case VIDIOC_QUERYCTRL: @@ -1426,77 +1435,6 @@ static long __video_do_ioctl(struct file *file, p->id, p->index); break; } - /* --- audio ---------------------------------------------- */ - case VIDIOC_ENUMAUDIO: - { - struct v4l2_audio *p = arg; - - ret = ops->vidioc_enumaudio(file, fh, p); - if (!ret) - dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " - "mode=0x%x\n", p->index, p->name, - p->capability, p->mode); - else - dbgarg(cmd, "index=%d\n", p->index); - break; - } - case VIDIOC_G_AUDIO: - { - struct v4l2_audio *p = arg; - - ret = ops->vidioc_g_audio(file, fh, p); - if (!ret) - dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " - "mode=0x%x\n", p->index, - p->name, p->capability, p->mode); - else - dbgarg(cmd, "index=%d\n", p->index); - break; - } - case VIDIOC_S_AUDIO: - { - struct v4l2_audio *p = arg; - - dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " - "mode=0x%x\n", p->index, p->name, - p->capability, p->mode); - ret = ops->vidioc_s_audio(file, fh, p); - break; - } - case VIDIOC_ENUMAUDOUT: - { - struct v4l2_audioout *p = arg; - - dbgarg(cmd, "Enum for index=%d\n", p->index); - ret = ops->vidioc_enumaudout(file, fh, p); - if (!ret) - dbgarg2("index=%d, name=%s, capability=%d, " - "mode=%d\n", p->index, p->name, - p->capability, p->mode); - break; - } - case VIDIOC_G_AUDOUT: - { - struct v4l2_audioout *p = arg; - - ret = ops->vidioc_g_audout(file, fh, p); - if (!ret) - dbgarg2("index=%d, name=%s, capability=%d, " - "mode=%d\n", p->index, p->name, - p->capability, p->mode); - break; - } - case VIDIOC_S_AUDOUT: - { - struct v4l2_audioout *p = arg; - - dbgarg(cmd, "index=%d, name=%s, capability=%d, " - "mode=%d\n", p->index, p->name, - p->capability, p->mode); - - ret = ops->vidioc_s_audout(file, fh, p); - break; - } case VIDIOC_G_MODULATOR: { struct v4l2_modulator *p = arg; |