1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
16 MODULE_DESCRIPTION("GSPCA/SPCA500 USB Camera Driver");
107 	/* set interface */
240 	{				/* Q-table Y-components */
249 	{				/* Q-table C-components */
261 	{				/* Q-table Y-components */
270 	{				/* Q-table C-components */
282 	{		/* Q-table Y-components start registers 0x8800 */
292 	{		/* Q-table C-components start registers 0x8840 */
303 /* read 'len' bytes to gspca_dev->usb_buf */
308 	usb_control_msg(gspca_dev->dev,  in reg_r()
309 			usb_rcvctrlpipe(gspca_dev->dev, 0),  in reg_r()
313 			index, gspca_dev->usb_buf, length, 500);  in reg_r()
323 	ret = usb_control_msg(gspca_dev->dev,  in reg_w()
324 			usb_sndctrlpipe(gspca_dev->dev, 0),  in reg_w()
341 	gspca_dev->usb_buf[1] = 0;  in reg_r_12()
342 	ret = usb_control_msg(gspca_dev->dev,  in reg_r_12()
343 			usb_rcvctrlpipe(gspca_dev->dev, 0),  in reg_r_12()
348 			gspca_dev->usb_buf, length,  in reg_r_12()
354 	return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];  in reg_r_12()
358  * Simple function to wait for a given 8-bit value to be returned from
367 	while (--cnt > 0) {  in reg_r_wait()
373 	return -EIO;  in reg_r_wait()
418 		  gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);  in spca500_ping310()
425 		  gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);  in spca500_clksmart310_init()
450 	/* set x multiplier */  in spca500_setmode()
453 	/* set y multiplier */  in spca500_setmode()
457 	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;  in spca500_setmode()
465 	/* send the reset command */  in spca500_full_reset()
491 /* up-port the same feature as in 2.4.x kernel */
494 	if (usb_set_interface(gspca_dev->dev, gspca_dev->iface, 0) < 0) {  in spca500_synch310()
495 		gspca_err(gspca_dev, "Set packet size: set interface error\n");  in spca500_synch310()
504 		  gspca_dev->alt);  in spca500_synch310()
507 	if (usb_set_interface(gspca_dev->dev,  in spca500_synch310()
508 				gspca_dev->iface,  in spca500_synch310()
509 				gspca_dev->alt) < 0) {  in spca500_synch310()
510 		gspca_err(gspca_dev, "Set packet size: set interface error\n");  in spca500_synch310()
515 	return -EBUSY;  in spca500_synch310()
523 	/* some unknown command from Aiptek pocket dv and family300 */  in spca500_reinit()
537 	/* set qtable index */  in spca500_reinit()
541 	/* Set agc transfer: synced between frames */  in spca500_reinit()
543 	/* Init SDRAM - needed for SDRAM access */  in spca500_reinit()
547 	/* switch to video camera mode */  in spca500_reinit()
552 		Data = gspca_dev->usb_buf[0];  in spca500_reinit()
564 	cam = &gspca_dev->cam;  in sd_config()
565 	sd->subtype = id->driver_info;  in sd_config()
566 	if (sd->subtype != LogitechClickSmart310) {  in sd_config()
567 		cam->cam_mode = vga_mode;  in sd_config()
568 		cam->nmodes = ARRAY_SIZE(vga_mode);  in sd_config()
570 		cam->cam_mode = sif_mode;  in sd_config()
571 		cam->nmodes = ARRAY_SIZE(sif_mode);  in sd_config()
583 	if (sd->subtype == LogitechClickSmart310)  in sd_init()
599 	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,  in sd_start()
600 			gspca_dev->pixfmt.width,  in sd_start()
602 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);  in sd_start()
604 	if (sd->subtype == LogitechClickSmart310) {  in sd_start()
615 		  gspca_dev->usb_buf[0]);  in sd_start()
617 		  gspca_dev->curr_mode, xmult, ymult);  in sd_start()
620 	switch (sd->subtype) {  in sd_start()
632 		/* Init SDRAM - needed for SDRAM access */  in sd_start()
635 		/* switch to video camera mode */  in sd_start()
642 		Data = gspca_dev->usb_buf[0];  in sd_start()
660 		/* Init SDRAM - needed for SDRAM access */  in sd_start()
663 		/* switch to video camera mode */  in sd_start()
670 		Data = gspca_dev->usb_buf[0];  in sd_start()
673 	case CreativePCCam300:		/* Creative PC-CAM 300 640x480 CCD */  in sd_start()
675 					 *	Intel Pocket PC Camera  in sd_start()
676 					 *	- NWG (Sat 29th March 2003) */  in sd_start()
697 		/* switch to video camera mode */  in sd_start()
704 		Data = gspca_dev->usb_buf[0];  in sd_start()
727 		/* switch to video camera mode */  in sd_start()
734 		Data = gspca_dev->usb_buf[0];  in sd_start()
762 		/* Set agc transfer: synced between frames */  in sd_start()
764 		/* Init SDRAM - needed for SDRAM access */  in sd_start()
768 		/* switch to video camera mode */  in sd_start()
774 		Data = gspca_dev->usb_buf[0];  in sd_start()
790 		/* Init SDRAM - needed for SDRAM access */  in sd_start()
795 		/* switch to video camera mode */  in sd_start()
800 		Data = gspca_dev->usb_buf[0];  in sd_start()
812 	/* switch to video camera mode */  in sd_stopN()
816 		  gspca_dev->usb_buf[0]);  in sd_stopN()
830 /*			gspca_dev->last_packet_type = DISCARD_PACKET; */  in sd_pkt_scan()
838 			sd->jpeg_hdr, JPEG_HDR_SZ);  in sd_pkt_scan()
841 		len -= SPCA500_OFFSET_DATA;  in sd_pkt_scan()
844 		len -= 1;  in sd_pkt_scan()
853 			len -= i;  in sd_pkt_scan()
866 			(__u8) (val - 128));  in setbrightness()
882 		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);  in sd_s_ctrl()
884 	gspca_dev->usb_err = 0;  in sd_s_ctrl()
886 	if (!gspca_dev->streaming)  in sd_s_ctrl()
889 	switch (ctrl->id) {  in sd_s_ctrl()
891 		setbrightness(gspca_dev, ctrl->val);  in sd_s_ctrl()
894 		setcontrast(gspca_dev, ctrl->val);  in sd_s_ctrl()
897 		setcolors(gspca_dev, ctrl->val);  in sd_s_ctrl()
900 	return gspca_dev->usb_err;  in sd_s_ctrl()
909 	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;  in sd_init_controls()
911 	gspca_dev->vdev.ctrl_handler = hdl;  in sd_init_controls()
920 	if (hdl->error) {  in sd_init_controls()
922 		return hdl->error;  in sd_init_controls()
927 /* sub-driver description */
938 /* -- module initialisation -- */
959 /* -- device connect -- */