[media] v4l2-dev: reorder checks into blocks of ioctls with similar properties

This makes it easier to read and also ties in more closely with the
profile concept.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index b437daa..a2df842 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -559,6 +559,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
 
        bitmap_zero(valid_ioctls, BASE_VIDIOC_PRIVATE);
 
+       /* vfl_type and vfl_dir independent ioctls */
+
        SET_VALID_IOCTL(ops, VIDIOC_QUERYCAP, vidioc_querycap);
        if (ops->vidioc_g_priority ||
                        test_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags))
@@ -566,7 +568,49 @@ static void determine_valid_ioctls(struct video_device *vdev)
        if (ops->vidioc_s_priority ||
                        test_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags))
                set_bit(_IOC_NR(VIDIOC_S_PRIORITY), valid_ioctls);
+       SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs);
+       SET_VALID_IOCTL(ops, VIDIOC_QUERYBUF, vidioc_querybuf);
+       SET_VALID_IOCTL(ops, VIDIOC_QBUF, vidioc_qbuf);
+       SET_VALID_IOCTL(ops, VIDIOC_DQBUF, vidioc_dqbuf);
+       SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
+       SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
+       /* Note: the control handler can also be passed through the filehandle,
+          and that can't be tested here. If the bit for these control ioctls
+          is set, then the ioctl is valid. But if it is 0, then it can still
+          be valid if the filehandle passed the control handler. */
+       if (vdev->ctrl_handler || ops->vidioc_queryctrl)
+               set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_g_ctrl || ops->vidioc_g_ext_ctrls)
+               set_bit(_IOC_NR(VIDIOC_G_CTRL), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_s_ctrl || ops->vidioc_s_ext_ctrls)
+               set_bit(_IOC_NR(VIDIOC_S_CTRL), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_g_ext_ctrls)
+               set_bit(_IOC_NR(VIDIOC_G_EXT_CTRLS), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_s_ext_ctrls)
+               set_bit(_IOC_NR(VIDIOC_S_EXT_CTRLS), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_try_ext_ctrls)
+               set_bit(_IOC_NR(VIDIOC_TRY_EXT_CTRLS), valid_ioctls);
+       if (vdev->ctrl_handler || ops->vidioc_querymenu)
+               set_bit(_IOC_NR(VIDIOC_QUERYMENU), valid_ioctls);
+       SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
+       SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
+       SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+       SET_VALID_IOCTL(ops, VIDIOC_DBG_G_REGISTER, vidioc_g_register);
+       SET_VALID_IOCTL(ops, VIDIOC_DBG_S_REGISTER, vidioc_s_register);
+#endif
+       SET_VALID_IOCTL(ops, VIDIOC_DBG_G_CHIP_IDENT, vidioc_g_chip_ident);
+       /* yes, really vidioc_subscribe_event */
+       SET_VALID_IOCTL(ops, VIDIOC_DQEVENT, vidioc_subscribe_event);
+       SET_VALID_IOCTL(ops, VIDIOC_SUBSCRIBE_EVENT, vidioc_subscribe_event);
+       SET_VALID_IOCTL(ops, VIDIOC_UNSUBSCRIBE_EVENT, vidioc_unsubscribe_event);
+       SET_VALID_IOCTL(ops, VIDIOC_CREATE_BUFS, vidioc_create_bufs);
+       SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
+       if (ops->vidioc_enum_freq_bands || ops->vidioc_g_tuner || ops->vidioc_g_modulator)
+               set_bit(_IOC_NR(VIDIOC_ENUM_FREQ_BANDS), valid_ioctls);
+
        if (is_vid) {
+               /* video specific ioctls */
                if ((is_rx && (ops->vidioc_enum_fmt_vid_cap ||
                               ops->vidioc_enum_fmt_vid_cap_mplane ||
                               ops->vidioc_enum_fmt_vid_overlay)) ||
@@ -594,7 +638,20 @@ static void determine_valid_ioctls(struct video_device *vdev)
                               ops->vidioc_try_fmt_vid_out_mplane ||
                               ops->vidioc_try_fmt_vid_out_overlay)))
                         set_bit(_IOC_NR(VIDIOC_TRY_FMT), valid_ioctls);
+               SET_VALID_IOCTL(ops, VIDIOC_OVERLAY, vidioc_overlay);
+               SET_VALID_IOCTL(ops, VIDIOC_G_FBUF, vidioc_g_fbuf);
+               SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf);
+               SET_VALID_IOCTL(ops, VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp);
+               SET_VALID_IOCTL(ops, VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp);
+               SET_VALID_IOCTL(ops, VIDIOC_G_ENC_INDEX, vidioc_g_enc_index);
+               SET_VALID_IOCTL(ops, VIDIOC_ENCODER_CMD, vidioc_encoder_cmd);
+               SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd);
+               SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd);
+               SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd);
+               SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes);
+               SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals);
        } else if (is_vbi) {
+               /* vbi specific ioctls */
                if ((is_rx && (ops->vidioc_g_fmt_vbi_cap ||
                               ops->vidioc_g_fmt_sliced_vbi_cap)) ||
                    (is_tx && (ops->vidioc_g_fmt_vbi_out ||
@@ -610,33 +667,25 @@ static void determine_valid_ioctls(struct video_device *vdev)
                    (is_tx && (ops->vidioc_try_fmt_vbi_out ||
                               ops->vidioc_try_fmt_sliced_vbi_out)))
                        set_bit(_IOC_NR(VIDIOC_TRY_FMT), valid_ioctls);
+               SET_VALID_IOCTL(ops, VIDIOC_G_SLICED_VBI_CAP, vidioc_g_sliced_vbi_cap);
        }
-       SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs);
-       SET_VALID_IOCTL(ops, VIDIOC_QUERYBUF, vidioc_querybuf);
-       SET_VALID_IOCTL(ops, VIDIOC_QBUF, vidioc_qbuf);
-       SET_VALID_IOCTL(ops, VIDIOC_DQBUF, vidioc_dqbuf);
-       if (is_vid) {
-               SET_VALID_IOCTL(ops, VIDIOC_OVERLAY, vidioc_overlay);
-               SET_VALID_IOCTL(ops, VIDIOC_G_FBUF, vidioc_g_fbuf);
-               SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf);
-       }
-       SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
-       SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
        if (!is_radio) {
+               /* ioctls valid for video or vbi */
                if (ops->vidioc_s_std)
                        set_bit(_IOC_NR(VIDIOC_ENUMSTD), valid_ioctls);
                if (ops->vidioc_g_std || vdev->current_norm)
                        set_bit(_IOC_NR(VIDIOC_G_STD), valid_ioctls);
                SET_VALID_IOCTL(ops, VIDIOC_S_STD, vidioc_s_std);
-               if (is_rx)
-                       SET_VALID_IOCTL(ops, VIDIOC_QUERYSTD, vidioc_querystd);
                if (is_rx) {
+                       SET_VALID_IOCTL(ops, VIDIOC_QUERYSTD, vidioc_querystd);
                        SET_VALID_IOCTL(ops, VIDIOC_ENUMINPUT, vidioc_enum_input);
                        SET_VALID_IOCTL(ops, VIDIOC_G_INPUT, vidioc_g_input);
                        SET_VALID_IOCTL(ops, VIDIOC_S_INPUT, vidioc_s_input);
                        SET_VALID_IOCTL(ops, VIDIOC_ENUMAUDIO, vidioc_enumaudio);
                        SET_VALID_IOCTL(ops, VIDIOC_G_AUDIO, vidioc_g_audio);
                        SET_VALID_IOCTL(ops, VIDIOC_S_AUDIO, vidioc_s_audio);
+                       SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset);
+                       SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings);
                }
                if (is_tx) {
                        SET_VALID_IOCTL(ops, VIDIOC_ENUMOUTPUT, vidioc_enum_output);
@@ -646,30 +695,6 @@ static void determine_valid_ioctls(struct video_device *vdev)
                        SET_VALID_IOCTL(ops, VIDIOC_G_AUDOUT, vidioc_g_audout);
                        SET_VALID_IOCTL(ops, VIDIOC_S_AUDOUT, vidioc_s_audout);
                }
-       }
-       /* Note: the control handler can also be passed through the filehandle,
-          and that can't be tested here. If the bit for these control ioctls
-          is set, then the ioctl is valid. But if it is 0, then it can still
-          be valid if the filehandle passed the control handler. */
-       if (vdev->ctrl_handler || ops->vidioc_queryctrl)
-               set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_g_ctrl || ops->vidioc_g_ext_ctrls)
-               set_bit(_IOC_NR(VIDIOC_G_CTRL), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_s_ctrl || ops->vidioc_s_ext_ctrls)
-               set_bit(_IOC_NR(VIDIOC_S_CTRL), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_g_ext_ctrls)
-               set_bit(_IOC_NR(VIDIOC_G_EXT_CTRLS), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_s_ext_ctrls)
-               set_bit(_IOC_NR(VIDIOC_S_EXT_CTRLS), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_try_ext_ctrls)
-               set_bit(_IOC_NR(VIDIOC_TRY_EXT_CTRLS), valid_ioctls);
-       if (vdev->ctrl_handler || ops->vidioc_querymenu)
-               set_bit(_IOC_NR(VIDIOC_QUERYMENU), valid_ioctls);
-       if (is_tx) {
-               SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator);
-               SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator);
-       }
-       if (!is_radio) {
                if (ops->vidioc_g_crop || ops->vidioc_g_selection)
                        set_bit(_IOC_NR(VIDIOC_G_CROP), valid_ioctls);
                if (ops->vidioc_s_crop || ops->vidioc_s_selection)
@@ -678,63 +703,30 @@ static void determine_valid_ioctls(struct video_device *vdev)
                SET_VALID_IOCTL(ops, VIDIOC_S_SELECTION, vidioc_s_selection);
                if (ops->vidioc_cropcap || ops->vidioc_g_selection)
                        set_bit(_IOC_NR(VIDIOC_CROPCAP), valid_ioctls);
-       }
-       if (is_vid) {
-               SET_VALID_IOCTL(ops, VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp);
-               SET_VALID_IOCTL(ops, VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp);
-               SET_VALID_IOCTL(ops, VIDIOC_G_ENC_INDEX, vidioc_g_enc_index);
-               SET_VALID_IOCTL(ops, VIDIOC_ENCODER_CMD, vidioc_encoder_cmd);
-               SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd);
-               SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd);
-               SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd);
-       }
-       if (!is_radio) {
                if (ops->vidioc_g_parm || (vdev->vfl_type == VFL_TYPE_GRABBER &&
                                        (ops->vidioc_g_std || vdev->current_norm)))
                        set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls);
                SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm);
-       }
-       if (is_rx) {
-               SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
-               SET_VALID_IOCTL(ops, VIDIOC_S_TUNER, vidioc_s_tuner);
-       }
-       SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
-       SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
-       if (is_vbi)
-               SET_VALID_IOCTL(ops, VIDIOC_G_SLICED_VBI_CAP, vidioc_g_sliced_vbi_cap);
-       SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-       SET_VALID_IOCTL(ops, VIDIOC_DBG_G_REGISTER, vidioc_g_register);
-       SET_VALID_IOCTL(ops, VIDIOC_DBG_S_REGISTER, vidioc_s_register);
-#endif
-       SET_VALID_IOCTL(ops, VIDIOC_DBG_G_CHIP_IDENT, vidioc_g_chip_ident);
-       if (is_rx)
-               SET_VALID_IOCTL(ops, VIDIOC_S_HW_FREQ_SEEK, vidioc_s_hw_freq_seek);
-       if (is_vid) {
-               SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes);
-               SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals);
-       }
-       if (!is_radio) {
                SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_PRESETS, vidioc_enum_dv_presets);
                SET_VALID_IOCTL(ops, VIDIOC_S_DV_PRESET, vidioc_s_dv_preset);
                SET_VALID_IOCTL(ops, VIDIOC_G_DV_PRESET, vidioc_g_dv_preset);
-               if (is_rx)
-                       SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset);
                SET_VALID_IOCTL(ops, VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings);
                SET_VALID_IOCTL(ops, VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings);
                SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings);
-               if (is_rx)
-                       SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings);
                SET_VALID_IOCTL(ops, VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap);
        }
-       /* yes, really vidioc_subscribe_event */
-       SET_VALID_IOCTL(ops, VIDIOC_DQEVENT, vidioc_subscribe_event);
-       SET_VALID_IOCTL(ops, VIDIOC_SUBSCRIBE_EVENT, vidioc_subscribe_event);
-       SET_VALID_IOCTL(ops, VIDIOC_UNSUBSCRIBE_EVENT, vidioc_unsubscribe_event);
-       SET_VALID_IOCTL(ops, VIDIOC_CREATE_BUFS, vidioc_create_bufs);
-       SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
-       if (ops->vidioc_enum_freq_bands || ops->vidioc_g_tuner || ops->vidioc_g_modulator)
-               set_bit(_IOC_NR(VIDIOC_ENUM_FREQ_BANDS), valid_ioctls);
+       if (is_tx) {
+               /* transmitter only ioctls */
+               SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator);
+               SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator);
+       }
+       if (is_rx) {
+               /* receiver only ioctls */
+               SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
+               SET_VALID_IOCTL(ops, VIDIOC_S_TUNER, vidioc_s_tuner);
+               SET_VALID_IOCTL(ops, VIDIOC_S_HW_FREQ_SEEK, vidioc_s_hw_freq_seek);
+       }
+
        bitmap_andnot(vdev->valid_ioctls, valid_ioctls, vdev->valid_ioctls,
                        BASE_VIDIOC_PRIVATE);
 }