/* End of Add-Ons */
/* ************************************************* */
-/* Linux 2.5.something and 2.6 pass direct pointers to arguments of
- ioctl() calls. With 2.4, you have to do tedious copy_from_user()
- and copy_to_user() calls. With these macros we circumvent this,
- and let me maintain only one source file. The functionality is
- exactly the same otherwise.
- */
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
-
-/* define local variable for arg */
-#define ARG_DEF(ARG_type, ARG_name)\
- ARG_type *ARG_name = arg;
-/* copy arg to local variable */
-#define ARG_IN(ARG_name) /* nothing */
-/* argument itself (referenced) */
-#define ARGR(ARG_name) (*ARG_name)
-/* argument address */
-#define ARGA(ARG_name) ARG_name
-/* copy local variable to arg */
-#define ARG_OUT(ARG_name) /* nothing */
-
-#else
-
-#define ARG_DEF(ARG_type, ARG_name)\
- ARG_type ARG_name;
-#define ARG_IN(ARG_name)\
- if (copy_from_user(&ARG_name, arg, sizeof(ARG_name))) {\
- ret = -EFAULT;\
- break;\
- }
-#define ARGR(ARG_name) ARG_name
-#define ARGA(ARG_name) &ARG_name
-#define ARG_OUT(ARG_name)\
- if (copy_to_user(arg, &ARG_name, sizeof(ARG_name))) {\
- ret = -EFAULT;\
- break;\
- }
-
-#endif
int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
{
case VIDIOCPWCSCQUAL:
{
- ARG_DEF(int, qual)
+ int *qual = arg;
- ARG_IN(qual)
- if (ARGR(qual) < 0 || ARGR(qual) > 3)
+ if (*qual < 0 || *qual > 3)
ret = -EINVAL;
else
- ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, ARGR(qual), pdev->vsnapshot);
+ ret = pwc_try_video_mode(pdev, pdev->view.x, pdev->view.y, pdev->vframes, *qual, pdev->vsnapshot);
if (ret >= 0)
- pdev->vcompression = ARGR(qual);
+ pdev->vcompression = *qual;
break;
}
case VIDIOCPWCGCQUAL:
{
- ARG_DEF(int, qual)
-
- ARGR(qual) = pdev->vcompression;
- ARG_OUT(qual)
+ int *qual = arg;
+ *qual = pdev->vcompression;
break;
}
case VIDIOCPWCPROBE:
{
- ARG_DEF(struct pwc_probe, probe)
-
- strcpy(ARGR(probe).name, pdev->vdev->name);
- ARGR(probe).type = pdev->type;
- ARG_OUT(probe)
+ struct pwc_probe *probe = arg;
+ strcpy(probe->name, pdev->vdev->name);
+ probe->type = pdev->type;
break;
}
case VIDIOCPWCGSERIAL:
{
- ARG_DEF(struct pwc_serial, serial)
-
- strcpy(ARGR(serial).serial, pdev->serial);
- ARG_OUT(serial)
+ struct pwc_serial *serial = arg;
+ strcpy(serial->serial, pdev->serial);
break;
}
case VIDIOCPWCSAGC:
{
- ARG_DEF(int, agc)
-
- ARG_IN(agc)
- if (pwc_set_agc(pdev, ARGR(agc) < 0 ? 1 : 0, ARGR(agc)))
+ int *agc = arg;
+ if (pwc_set_agc(pdev, *agc < 0 ? 1 : 0, *agc))
ret = -EINVAL;
break;
}
case VIDIOCPWCGAGC:
{
- ARG_DEF(int, agc)
+ int *agc = arg;
- if (pwc_get_agc(pdev, ARGA(agc)))
+ if (pwc_get_agc(pdev, agc))
ret = -EINVAL;
- ARG_OUT(agc)
break;
}
case VIDIOCPWCSSHUTTER:
{
- ARG_DEF(int, shutter_speed)
-
- ARG_IN(shutter_speed)
- ret = pwc_set_shutter_speed(pdev, ARGR(shutter_speed) < 0 ? 1 : 0, ARGR(shutter_speed));
+ int *shutter_speed = arg;
+ ret = pwc_set_shutter_speed(pdev, *shutter_speed < 0 ? 1 : 0, *shutter_speed);
break;
}
case VIDIOCPWCSAWB:
{
- ARG_DEF(struct pwc_whitebalance, wb)
+ struct pwc_whitebalance *wb = arg;
- ARG_IN(wb)
- ret = pwc_set_awb(pdev, ARGR(wb).mode);
- if (ret >= 0 && ARGR(wb).mode == PWC_WB_MANUAL) {
- pwc_set_red_gain(pdev, ARGR(wb).manual_red);
- pwc_set_blue_gain(pdev, ARGR(wb).manual_blue);
+ ret = pwc_set_awb(pdev, wb->mode);
+ if (ret >= 0 && wb->mode == PWC_WB_MANUAL) {
+ pwc_set_red_gain(pdev, wb->manual_red);
+ pwc_set_blue_gain(pdev, wb->manual_blue);
}
break;
}
case VIDIOCPWCGAWB:
{
- ARG_DEF(struct pwc_whitebalance, wb)
+ struct pwc_whitebalance *wb = arg;
- memset(ARGA(wb), 0, sizeof(struct pwc_whitebalance));
- ARGR(wb).mode = pwc_get_awb(pdev);
- if (ARGR(wb).mode < 0)
+ memset(wb, 0, sizeof(struct pwc_whitebalance));
+ wb->mode = pwc_get_awb(pdev);
+ if (wb->mode < 0)
ret = -EINVAL;
else {
- if (ARGR(wb).mode == PWC_WB_MANUAL) {
- ret = pwc_get_red_gain(pdev, &ARGR(wb).manual_red);
+ if (wb->mode == PWC_WB_MANUAL) {
+ ret = pwc_get_red_gain(pdev, &wb->manual_red);
if (ret < 0)
break;
- ret = pwc_get_blue_gain(pdev, &ARGR(wb).manual_blue);
+ ret = pwc_get_blue_gain(pdev, &wb->manual_blue);
if (ret < 0)
break;
}
- if (ARGR(wb).mode == PWC_WB_AUTO) {
- ret = pwc_read_red_gain(pdev, &ARGR(wb).read_red);
+ if (wb->mode == PWC_WB_AUTO) {
+ ret = pwc_read_red_gain(pdev, &wb->read_red);
if (ret < 0)
break;
- ret =pwc_read_blue_gain(pdev, &ARGR(wb).read_blue);
+ ret = pwc_read_blue_gain(pdev, &wb->read_blue);
if (ret < 0)
break;
}
}
- ARG_OUT(wb)
break;
}
case VIDIOCPWCSAWBSPEED:
{
- ARG_DEF(struct pwc_wb_speed, wbs)
+ struct pwc_wb_speed *wbs = arg;
- if (ARGR(wbs).control_speed > 0) {
- ret = pwc_set_wb_speed(pdev, ARGR(wbs).control_speed);
+ if (wbs->control_speed > 0) {
+ ret = pwc_set_wb_speed(pdev, wbs->control_speed);
}
- if (ARGR(wbs).control_delay > 0) {
- ret = pwc_set_wb_delay(pdev, ARGR(wbs).control_delay);
+ if (wbs->control_delay > 0) {
+ ret = pwc_set_wb_delay(pdev, wbs->control_delay);
}
break;
}
case VIDIOCPWCGAWBSPEED:
{
- ARG_DEF(struct pwc_wb_speed, wbs)
+ struct pwc_wb_speed *wbs = arg;
- ret = pwc_get_wb_speed(pdev, &ARGR(wbs).control_speed);
+ ret = pwc_get_wb_speed(pdev, &wbs->control_speed);
if (ret < 0)
break;
- ret = pwc_get_wb_delay(pdev, &ARGR(wbs).control_delay);
+ ret = pwc_get_wb_delay(pdev, &wbs->control_delay);
if (ret < 0)
break;
- ARG_OUT(wbs)
break;
}
case VIDIOCPWCSLED:
{
- ARG_DEF(struct pwc_leds, leds)
-
- ARG_IN(leds)
- ret = pwc_set_leds(pdev, ARGR(leds).led_on, ARGR(leds).led_off);
+ struct pwc_leds *leds = arg;
+ ret = pwc_set_leds(pdev, leds->led_on, leds->led_off);
break;
}
case VIDIOCPWCGLED:
{
- ARG_DEF(struct pwc_leds, leds)
-
- ret = pwc_get_leds(pdev, &ARGR(leds).led_on, &ARGR(leds).led_off);
- ARG_OUT(leds)
+ struct pwc_leds *leds = arg;
+ ret = pwc_get_leds(pdev, &leds->led_on, &leds->led_off);
break;
}
case VIDIOCPWCSCONTOUR:
{
- ARG_DEF(int, contour)
-
- ARG_IN(contour)
- ret = pwc_set_contour(pdev, ARGR(contour));
+ int *contour = arg;
+ ret = pwc_set_contour(pdev, *contour);
break;
}
case VIDIOCPWCGCONTOUR:
{
- ARG_DEF(int, contour)
-
- ret = pwc_get_contour(pdev, ARGA(contour));
- ARG_OUT(contour)
+ int *contour = arg;
+ ret = pwc_get_contour(pdev, contour);
break;
}
case VIDIOCPWCSBACKLIGHT:
{
- ARG_DEF(int, backlight)
-
- ARG_IN(backlight)
- ret = pwc_set_backlight(pdev, ARGR(backlight));
+ int *backlight = arg;
+ ret = pwc_set_backlight(pdev, *backlight);
break;
}
case VIDIOCPWCGBACKLIGHT:
{
- ARG_DEF(int, backlight)
-
- ret = pwc_get_backlight(pdev, ARGA(backlight));
- ARG_OUT(backlight)
+ int *backlight = arg;
+ ret = pwc_get_backlight(pdev, backlight);
break;
}
case VIDIOCPWCSFLICKER:
{
- ARG_DEF(int, flicker)
-
- ARG_IN(flicker)
- ret = pwc_set_flicker(pdev, ARGR(flicker));
+ int *flicker = arg;
+ ret = pwc_set_flicker(pdev, *flicker);
break;
}
case VIDIOCPWCGFLICKER:
{
- ARG_DEF(int, flicker)
-
- ret = pwc_get_flicker(pdev, ARGA(flicker));
- ARG_OUT(flicker)
+ int *flicker = arg;
+ ret = pwc_get_flicker(pdev, flicker);
break;
}
case VIDIOCPWCSDYNNOISE:
{
- ARG_DEF(int, dynnoise)
-
- ARG_IN(dynnoise)
- ret = pwc_set_dynamic_noise(pdev, ARGR(dynnoise));
+ int *dynnoise = arg;
+ ret = pwc_set_dynamic_noise(pdev, *dynnoise);
break;
}
case VIDIOCPWCGDYNNOISE:
{
- ARG_DEF(int, dynnoise)
-
- ret = pwc_get_dynamic_noise(pdev, ARGA(dynnoise));
- ARG_OUT(dynnoise);
+ int *dynnoise = arg;
+ ret = pwc_get_dynamic_noise(pdev, dynnoise);
break;
}
case VIDIOCPWCGREALSIZE:
{
- ARG_DEF(struct pwc_imagesize, size)
-
- ARGR(size).width = pdev->image.x;
- ARGR(size).height = pdev->image.y;
- ARG_OUT(size)
+ struct pwc_imagesize *size = arg;
+ size->width = pdev->image.x;
+ size->height = pdev->image.y;
break;
}
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
- ARG_DEF(int, flags)
+ int *flags = arg;
- ARG_IN(flags)
- ret = pwc_mpt_reset(pdev, ARGR(flags));
+ ret = pwc_mpt_reset(pdev, *flags);
if (ret >= 0)
{
pdev->pan_angle = 0;
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
- ARG_DEF(struct pwc_mpt_range, range)
-
- ARGR(range) = pdev->angle_range;
- ARG_OUT(range)
+ struct pwc_mpt_range *range = arg;
+ *range = pdev->angle_range;
}
else
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
- ARG_DEF(struct pwc_mpt_angles, angles)
-
- ARG_IN(angles)
+ struct pwc_mpt_angles *angles = arg;
/* The camera can only set relative angles, so
do some calculations when getting an absolute angle .
*/
- if (ARGR(angles).absolute)
+ if (angles->absolute)
{
- new_pan = ARGR(angles).pan;
- new_tilt = ARGR(angles).tilt;
+ new_pan = angles->pan;
+ new_tilt = angles->tilt;
}
else
{
- new_pan = pdev->pan_angle + ARGR(angles).pan;
- new_tilt = pdev->tilt_angle + ARGR(angles).tilt;
+ new_pan = pdev->pan_angle + angles->pan;
+ new_tilt = pdev->tilt_angle + angles->tilt;
}
/* check absolute ranges */
if (new_pan < pdev->angle_range.pan_min ||
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
- ARG_DEF(struct pwc_mpt_angles, angles)
+ struct pwc_mpt_angles *angles = arg;
- ARGR(angles).absolute = 1;
- ARGR(angles).pan = pdev->pan_angle;
- ARGR(angles).tilt = pdev->tilt_angle;
- ARG_OUT(angles)
+ angles->absolute = 1;
+ angles->pan = pdev->pan_angle;
+ angles->tilt = pdev->tilt_angle;
}
else
{
{
if (pdev->features & FEATURE_MOTOR_PANTILT)
{
- ARG_DEF(struct pwc_mpt_status, status)
-
- ret = pwc_mpt_get_status(pdev, ARGA(status));
- ARG_OUT(status)
+ struct pwc_mpt_status *status = arg;
+ ret = pwc_mpt_get_status(pdev, status);
}
else
{
case VIDIOCPWCGVIDCMD:
{
- ARG_DEF(struct pwc_video_command, cmd);
+ struct pwc_video_command *cmd = arg;
- ARGR(cmd).type = pdev->type;
- ARGR(cmd).release = pdev->release;
- ARGR(cmd).command_len = pdev->cmd_len;
- memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
- ARGR(cmd).bandlength = pdev->vbandlength;
- ARGR(cmd).frame_size = pdev->frame_size;
- ARG_OUT(cmd)
+ cmd->type = pdev->type;
+ cmd->release = pdev->release;
+ cmd->command_len = pdev->cmd_len;
+ memcpy(&cmd->command_buf, pdev->cmd_buf, pdev->cmd_len);
+ cmd->bandlength = pdev->vbandlength;
+ cmd->frame_size = pdev->frame_size;
break;
}
/*
case VIDIOCPWCGVIDTABLE:
{
- ARG_DEF(struct pwc_table_init_buffer, table);
- ARGR(table).len = pdev->cmd_len;
- memcpy(&ARGR(table).buffer, pdev->decompress_data, pdev->decompressor->table_size);
- ARG_OUT(table)
+ struct pwc_table_init_buffer *table = arg;
+ table->len = pdev->cmd_len;
+ memcpy(&table->buffer, pdev->decompress_data, pdev->decompressor->table_size);
break;
}
*/
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