162 int pwc_init_controls(struct pwc_device *pdev)  in pwc_init_controls()  argument
168 	hdl = &pdev->ctrl_handler;  in pwc_init_controls()
174 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, BRIGHTNESS_FORMATTER, &def);  in pwc_init_controls()
177 	pdev->brightness = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
180 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, CONTRAST_FORMATTER, &def);  in pwc_init_controls()
183 	pdev->contrast = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
186 	if (pdev->type >= 675) {  in pwc_init_controls()
187 		if (pdev->type < 730)  in pwc_init_controls()
188 			pdev->saturation_fmt = SATURATION_MODE_FORMATTER2;  in pwc_init_controls()
190 			pdev->saturation_fmt = SATURATION_MODE_FORMATTER1;  in pwc_init_controls()
191 		r = pwc_get_s8_ctrl(pdev, GET_CHROM_CTL, pdev->saturation_fmt,  in pwc_init_controls()
195 		pdev->saturation = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
199 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, GAMMA_FORMATTER, &def);  in pwc_init_controls()
202 	pdev->gamma = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
206 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, WB_MODE_FORMATTER, &def);  in pwc_init_controls()
212 	pdev->auto_white_balance = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
214 	if (!pdev->auto_white_balance)  in pwc_init_controls()
217 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,  in pwc_init_controls()
221 	pdev->red_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
224 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,  in pwc_init_controls()
228 	pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
231 	v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true);  in pwc_init_controls()
234 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def);  in pwc_init_controls()
238 	pdev->autogain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
240 	if (!pdev->autogain)  in pwc_init_controls()
243 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_AGC_FORMATTER, &def);  in pwc_init_controls()
246 	pdev->gain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
250 	if (DEVICE_USE_CODEC2(pdev->type)) {  in pwc_init_controls()
251 		r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, SHUTTER_MODE_FORMATTER,  in pwc_init_controls()
259 		pdev->exposure_auto = v4l2_ctrl_new_std_menu(hdl,  in pwc_init_controls()
263 		if (!pdev->exposure_auto)  in pwc_init_controls()
267 		r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,  in pwc_init_controls()
271 		pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
274 		v4l2_ctrl_auto_cluster(2, &pdev->autogain, 0, true);  in pwc_init_controls()
275 		v4l2_ctrl_auto_cluster(2, &pdev->exposure_auto,  in pwc_init_controls()
277 	} else if (DEVICE_USE_CODEC3(pdev->type)) {  in pwc_init_controls()
279 		r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,  in pwc_init_controls()
283 		pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
286 		pdev->autogain_expo_cluster[0] = pdev->autogain;  in pwc_init_controls()
287 		pdev->autogain_expo_cluster[1] = pdev->gain;  in pwc_init_controls()
288 		pdev->autogain_expo_cluster[2] = pdev->exposure;  in pwc_init_controls()
289 		v4l2_ctrl_auto_cluster(3, pdev->autogain_expo_cluster,  in pwc_init_controls()
294 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, COLOUR_MODE_FORMATTER,  in pwc_init_controls()
299 	pdev->colorfx = v4l2_ctrl_new_std_menu(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
303 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &def);  in pwc_init_controls()
308 	pdev->autocontour = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
309 	if (!pdev->autocontour)  in pwc_init_controls()
312 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &def);  in pwc_init_controls()
317 	pdev->contour = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
319 	v4l2_ctrl_auto_cluster(2, &pdev->autocontour, 0, false);  in pwc_init_controls()
322 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,  in pwc_init_controls()
329 	pdev->backlight = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
332 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,  in pwc_init_controls()
339 	pdev->flicker = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
342 	r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL,  in pwc_init_controls()
348 	pdev->noise_reduction = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
351 	pdev->save_user = v4l2_ctrl_new_custom(hdl, &pwc_save_user_cfg, NULL);  in pwc_init_controls()
352 	pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg,  in pwc_init_controls()
354 	if (pdev->restore_user)  in pwc_init_controls()
355 		pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE;  in pwc_init_controls()
356 	pdev->restore_factory = v4l2_ctrl_new_custom(hdl,  in pwc_init_controls()
359 	if (pdev->restore_factory)  in pwc_init_controls()
360 		pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE;  in pwc_init_controls()
363 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,  in pwc_init_controls()
369 	pdev->awb_speed = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
371 	r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL,  in pwc_init_controls()
377 	pdev->awb_delay = v4l2_ctrl_new_custom(hdl, &cfg, NULL);  in pwc_init_controls()
379 	if (!(pdev->features & FEATURE_MOTOR_PANTILT))  in pwc_init_controls()
383 	pdev->motor_pan = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
385 	if (!pdev->motor_pan)  in pwc_init_controls()
387 	pdev->motor_tilt = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
389 	pdev->motor_pan_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
391 	pdev->motor_tilt_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops,  in pwc_init_controls()
393 	v4l2_ctrl_cluster(4, &pdev->motor_pan);  in pwc_init_controls()
422 static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)  in pwc_vidioc_try_fmt()  argument
435 			if (DEVICE_USE_CODEC23(pdev->type)) {  in pwc_vidioc_try_fmt()
441 			if (DEVICE_USE_CODEC1(pdev->type)) {  in pwc_vidioc_try_fmt()
451 	size = pwc_get_size(pdev, f->fmt.pix.width, f->fmt.pix.height);  in pwc_vidioc_try_fmt()
464 	struct pwc_device *pdev = video_drvdata(file);  in pwc_s_fmt_vid_cap()  local
467 	ret = pwc_vidioc_try_fmt(pdev, f);  in pwc_s_fmt_vid_cap()
471 	if (vb2_is_busy(&pdev->vb_queue))  in pwc_s_fmt_vid_cap()
478 			f->fmt.pix.width, f->fmt.pix.height, pdev->vframes,  in pwc_s_fmt_vid_cap()
484 	ret = pwc_set_video_mode(pdev, f->fmt.pix.width, f->fmt.pix.height,  in pwc_s_fmt_vid_cap()
489 	pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt);  in pwc_s_fmt_vid_cap()
495 	struct pwc_device *pdev = video_drvdata(file);  in pwc_querycap()  local
498 	strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card));  in pwc_querycap()
499 	usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info));  in pwc_querycap()
529 	struct pwc_device *pdev =  in pwc_g_volatile_ctrl()  local
535 		if (pdev->color_bal_valid &&  in pwc_g_volatile_ctrl()
536 			(pdev->auto_white_balance->val != awb_auto ||  in pwc_g_volatile_ctrl()
538 				pdev->last_color_bal_update + HZ / 4))) {  in pwc_g_volatile_ctrl()
539 			pdev->red_balance->val  = pdev->last_red_balance;  in pwc_g_volatile_ctrl()
540 			pdev->blue_balance->val = pdev->last_blue_balance;  in pwc_g_volatile_ctrl()
543 		ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,  in pwc_g_volatile_ctrl()
545 				      &pdev->red_balance->val);  in pwc_g_volatile_ctrl()
548 		ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,  in pwc_g_volatile_ctrl()
550 				      &pdev->blue_balance->val);  in pwc_g_volatile_ctrl()
553 		pdev->last_red_balance  = pdev->red_balance->val;  in pwc_g_volatile_ctrl()
554 		pdev->last_blue_balance = pdev->blue_balance->val;  in pwc_g_volatile_ctrl()
555 		pdev->last_color_bal_update = jiffies;  in pwc_g_volatile_ctrl()
556 		pdev->color_bal_valid = true;  in pwc_g_volatile_ctrl()
559 		if (pdev->gain_valid && time_before(jiffies,  in pwc_g_volatile_ctrl()
560 				pdev->last_gain_update + HZ / 4)) {  in pwc_g_volatile_ctrl()
561 			pdev->gain->val = pdev->last_gain;  in pwc_g_volatile_ctrl()
564 		ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL,  in pwc_g_volatile_ctrl()
565 				      READ_AGC_FORMATTER, &pdev->gain->val);  in pwc_g_volatile_ctrl()
568 		pdev->last_gain = pdev->gain->val;  in pwc_g_volatile_ctrl()
569 		pdev->last_gain_update = jiffies;  in pwc_g_volatile_ctrl()
570 		pdev->gain_valid = true;  in pwc_g_volatile_ctrl()
571 		if (!DEVICE_USE_CODEC3(pdev->type))  in pwc_g_volatile_ctrl()
575 		if (pdev->exposure_valid && time_before(jiffies,  in pwc_g_volatile_ctrl()
576 				pdev->last_exposure_update + HZ / 4)) {  in pwc_g_volatile_ctrl()
577 			pdev->exposure->val = pdev->last_exposure;  in pwc_g_volatile_ctrl()
580 		ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL,  in pwc_g_volatile_ctrl()
582 				       &pdev->exposure->val);  in pwc_g_volatile_ctrl()
585 		pdev->last_exposure = pdev->exposure->val;  in pwc_g_volatile_ctrl()
586 		pdev->last_exposure_update = jiffies;  in pwc_g_volatile_ctrl()
587 		pdev->exposure_valid = true;  in pwc_g_volatile_ctrl()
599 static int pwc_set_awb(struct pwc_device *pdev)  in pwc_set_awb()  argument
603 	if (pdev->auto_white_balance->is_new) {  in pwc_set_awb()
604 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_set_awb()
606 				      pdev->auto_white_balance->val);  in pwc_set_awb()
610 		if (pdev->auto_white_balance->val != awb_manual)  in pwc_set_awb()
611 			pdev->color_bal_valid = false; /* Force cache update */  in pwc_set_awb()
617 		if (pdev->auto_white_balance->val == awb_indoor ||  in pwc_set_awb()
618 		    pdev->auto_white_balance->val == awb_outdoor ||  in pwc_set_awb()
619 		    pdev->auto_white_balance->val == awb_fl)  in pwc_set_awb()
620 			pwc_g_volatile_ctrl(pdev->auto_white_balance);  in pwc_set_awb()
622 	if (pdev->auto_white_balance->val != awb_manual)  in pwc_set_awb()
625 	if (pdev->red_balance->is_new) {  in pwc_set_awb()
626 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_set_awb()
628 				      pdev->red_balance->val);  in pwc_set_awb()
633 	if (pdev->blue_balance->is_new) {  in pwc_set_awb()
634 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_set_awb()
636 				      pdev->blue_balance->val);  in pwc_set_awb()
644 static int pwc_set_autogain(struct pwc_device *pdev)  in pwc_set_autogain()  argument
648 	if (pdev->autogain->is_new) {  in pwc_set_autogain()
649 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_set_autogain()
651 				      pdev->autogain->val ? 0 : 0xff);  in pwc_set_autogain()
655 		if (pdev->autogain->val)  in pwc_set_autogain()
656 			pdev->gain_valid = false; /* Force cache update */  in pwc_set_autogain()
659 	if (pdev->autogain->val)  in pwc_set_autogain()
662 	if (pdev->gain->is_new) {  in pwc_set_autogain()
663 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_set_autogain()
665 				      pdev->gain->val);  in pwc_set_autogain()
673 static int pwc_set_exposure_auto(struct pwc_device *pdev)  in pwc_set_exposure_auto()  argument
676 	int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO;  in pwc_set_exposure_auto()
678 	if (pdev->exposure_auto->is_new) {  in pwc_set_exposure_auto()
679 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_set_exposure_auto()
686 			pdev->exposure_valid = false; /* Force cache update */  in pwc_set_exposure_auto()
692 	if (pdev->exposure->is_new) {  in pwc_set_exposure_auto()
693 		ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,  in pwc_set_exposure_auto()
695 				       pdev->exposure->val);  in pwc_set_exposure_auto()
703 static int pwc_set_autogain_expo(struct pwc_device *pdev)  in pwc_set_autogain_expo()  argument
707 	if (pdev->autogain->is_new) {  in pwc_set_autogain_expo()
708 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_set_autogain_expo()
710 				      pdev->autogain->val ? 0 : 0xff);  in pwc_set_autogain_expo()
714 		if (pdev->autogain->val) {  in pwc_set_autogain_expo()
715 			pdev->gain_valid     = false; /* Force cache update */  in pwc_set_autogain_expo()
716 			pdev->exposure_valid = false; /* Force cache update */  in pwc_set_autogain_expo()
720 	if (pdev->autogain->val)  in pwc_set_autogain_expo()
723 	if (pdev->gain->is_new) {  in pwc_set_autogain_expo()
724 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_set_autogain_expo()
726 				      pdev->gain->val);  in pwc_set_autogain_expo()
731 	if (pdev->exposure->is_new) {  in pwc_set_autogain_expo()
732 		ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL,  in pwc_set_autogain_expo()
734 				       pdev->exposure->val);  in pwc_set_autogain_expo()
741 static int pwc_set_motor(struct pwc_device *pdev)  in pwc_set_motor()  argument
745 	pdev->ctrl_buf[0] = 0;  in pwc_set_motor()
746 	if (pdev->motor_pan_reset->is_new)  in pwc_set_motor()
747 		pdev->ctrl_buf[0] |= 0x01;  in pwc_set_motor()
748 	if (pdev->motor_tilt_reset->is_new)  in pwc_set_motor()
749 		pdev->ctrl_buf[0] |= 0x02;  in pwc_set_motor()
750 	if (pdev->motor_pan_reset->is_new || pdev->motor_tilt_reset->is_new) {  in pwc_set_motor()
751 		ret = send_control_msg(pdev, SET_MPT_CTL,  in pwc_set_motor()
753 				       pdev->ctrl_buf, 1);  in pwc_set_motor()
758 	memset(pdev->ctrl_buf, 0, 4);  in pwc_set_motor()
759 	if (pdev->motor_pan->is_new) {  in pwc_set_motor()
760 		pdev->ctrl_buf[0] = pdev->motor_pan->val & 0xFF;  in pwc_set_motor()
761 		pdev->ctrl_buf[1] = (pdev->motor_pan->val >> 8);  in pwc_set_motor()
763 	if (pdev->motor_tilt->is_new) {  in pwc_set_motor()
764 		pdev->ctrl_buf[2] = pdev->motor_tilt->val & 0xFF;  in pwc_set_motor()
765 		pdev->ctrl_buf[3] = (pdev->motor_tilt->val >> 8);  in pwc_set_motor()
767 	if (pdev->motor_pan->is_new || pdev->motor_tilt->is_new) {  in pwc_set_motor()
768 		ret = send_control_msg(pdev, SET_MPT_CTL,  in pwc_set_motor()
770 				       pdev->ctrl_buf, 4);  in pwc_set_motor()
780 	struct pwc_device *pdev =  in pwc_s_ctrl()  local
786 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
790 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
794 		ret = pwc_set_s8_ctrl(pdev, SET_CHROM_CTL,  in pwc_s_ctrl()
795 				      pdev->saturation_fmt, ctrl->val);  in pwc_s_ctrl()
798 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
802 		ret = pwc_set_awb(pdev);  in pwc_s_ctrl()
805 		if (DEVICE_USE_CODEC2(pdev->type))  in pwc_s_ctrl()
806 			ret = pwc_set_autogain(pdev);  in pwc_s_ctrl()
807 		else if (DEVICE_USE_CODEC3(pdev->type))  in pwc_s_ctrl()
808 			ret = pwc_set_autogain_expo(pdev);  in pwc_s_ctrl()
813 		if (DEVICE_USE_CODEC2(pdev->type))  in pwc_s_ctrl()
814 			ret = pwc_set_exposure_auto(pdev);  in pwc_s_ctrl()
819 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_s_ctrl()
824 		if (pdev->autocontour->is_new) {  in pwc_s_ctrl()
825 			ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
827 					pdev->autocontour->val ? 0 : 0xff);  in pwc_s_ctrl()
829 		if (ret == 0 && pdev->contour->is_new) {  in pwc_s_ctrl()
830 			ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
832 					      pdev->contour->val);  in pwc_s_ctrl()
836 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
841 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
846 		ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL,  in pwc_s_ctrl()
851 		ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER);  in pwc_s_ctrl()
854 		ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER);  in pwc_s_ctrl()
857 		ret = pwc_button_ctrl(pdev,  in pwc_s_ctrl()
861 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_s_ctrl()
866 		ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL,  in pwc_s_ctrl()
871 		ret = pwc_set_motor(pdev);  in pwc_s_ctrl()
885 	struct pwc_device *pdev = video_drvdata(file);  in pwc_enum_fmt_vid_cap()  local
891 		f->pixelformat = pdev->type <= 646 ? V4L2_PIX_FMT_PWC1 : V4L2_PIX_FMT_PWC2;  in pwc_enum_fmt_vid_cap()
907 	struct pwc_device *pdev = video_drvdata(file);  in pwc_g_fmt_vid_cap()  local
913 			pdev->width, pdev->height);  in pwc_g_fmt_vid_cap()
914 	pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt);  in pwc_g_fmt_vid_cap()
920 	struct pwc_device *pdev = video_drvdata(file);  in pwc_try_fmt_vid_cap()  local
922 	return pwc_vidioc_try_fmt(pdev, f);  in pwc_try_fmt_vid_cap()
928 	struct pwc_device *pdev = video_drvdata(file);  in pwc_enum_framesizes()  local
933 			DEVICE_USE_CODEC1(pdev->type)) ||  in pwc_enum_framesizes()
935 			DEVICE_USE_CODEC23(pdev->type))) {  in pwc_enum_framesizes()
937 			if (!(pdev->image_mask & (1UL << i)))  in pwc_enum_framesizes()
953 	struct pwc_device *pdev = video_drvdata(file);  in pwc_enum_frameintervals()  local
969 	i = pwc_get_fps(pdev, fival->index, size);  in pwc_enum_frameintervals()
983 	struct pwc_device *pdev = video_drvdata(file);  in pwc_g_parm()  local
993 	parm->parm.capture.timeperframe.denominator = pdev->vframes;  in pwc_g_parm()
1002 	struct pwc_device *pdev = video_drvdata(file);  in pwc_s_parm()  local
1019 	if (vb2_is_busy(&pdev->vb_queue))  in pwc_s_parm()
1022 	ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt,  in pwc_s_parm()