1 // SPDX-License-Identifier: GPL-2.0-or-later
37 	int vga;	/* 1 if vga cam, 0 if cif cam */
69  * cam uses endpoint 0x03 to send commands, 0x84 for read commands,
78 	memcpy(gspca_dev->usb_buf, command, 2);  in jl2005c_write2()
79 	retval = usb_bulk_msg(gspca_dev->dev,  in jl2005c_write2()
80 			usb_sndbulkpipe(gspca_dev->dev, 3),  in jl2005c_write2()
81 			gspca_dev->usb_buf, 2, NULL, 500);  in jl2005c_write2()
82 	if (retval < 0)  in jl2005c_write2()
84 		       gspca_dev->usb_buf[0], retval);  in jl2005c_write2()
88 /* Response to a command is one byte in usb_buf[0], only if requested. */
93 	retval = usb_bulk_msg(gspca_dev->dev,  in jl2005c_read1()
94 				usb_rcvbulkpipe(gspca_dev->dev, 0x84),  in jl2005c_read1()
95 				gspca_dev->usb_buf, 1, NULL, 500);  in jl2005c_read1()
96 	if (retval < 0)  in jl2005c_read1()
98 		       gspca_dev->usb_buf[0], retval);  in jl2005c_read1()
102 /* Response appears in gspca_dev->usb_buf[0] */
112 	if (retval < 0)  in jl2005c_read_reg()
128 	if (retval < 0)  in jl2005c_start_new_frame()
133 		/* If we tried 20 times, give up. */  in jl2005c_start_new_frame()
135 		if (retval < 0)  in jl2005c_start_new_frame()
137 		frame_brightness = gspca_dev->usb_buf[0];  in jl2005c_start_new_frame()
139 		if (retval < 0)  in jl2005c_start_new_frame()
144 		  gspca_dev->usb_buf[0]);  in jl2005c_start_new_frame()
158 	if (retval < 0)  in jl2005c_write_reg()
177 		  gspca_dev->usb_buf[0]);  in jl2005c_get_firmware_id()
178 	if (retval < 0)  in jl2005c_get_firmware_id()
183 		if (retval < 0)  in jl2005c_get_firmware_id()
185 		sd->firmware_id[i] = gspca_dev->usb_buf[0];  in jl2005c_get_firmware_id()
188 		  sd->firmware_id[0],  in jl2005c_get_firmware_id()
189 		  sd->firmware_id[1],  in jl2005c_get_firmware_id()
190 		  sd->firmware_id[2],  in jl2005c_get_firmware_id()
191 		  sd->firmware_id[3],  in jl2005c_get_firmware_id()
192 		  sd->firmware_id[4],  in jl2005c_get_firmware_id()
193 		  sd->firmware_id[5]);  in jl2005c_get_firmware_id()
201 	int retval = -1;  in jl2005c_stream_start_vga_lg()
214 		if (retval < 0)  in jl2005c_stream_start_vga_lg()
224 	int retval = -1;  in jl2005c_stream_start_vga_small()
237 		if (retval < 0)  in jl2005c_stream_start_vga_small()
247 	int retval = -1;  in jl2005c_stream_start_cif_lg()
260 		if (retval < 0)  in jl2005c_stream_start_cif_lg()
270 	int retval = -1;  in jl2005c_stream_start_cif_small()
283 		if (retval < 0)  in jl2005c_stream_start_cif_small()
300  * threads attempting to use gspca_dev->usb_buf we take the usb_lock when
307 	struct gspca_dev *gspca_dev = &dev->gspca_dev;  in jl2005c_dostream()
318 	if (!buffer) {  in jl2005c_dostream()
323 	while (gspca_dev->present && gspca_dev->streaming) {  in jl2005c_dostream()
325 		if (gspca_dev->frozen)  in jl2005c_dostream()
328 		/* Check if this is a new frame. If so, start the frame first */  in jl2005c_dostream()
329 		if (!header_read) {  in jl2005c_dostream()
330 			mutex_lock(&gspca_dev->usb_lock);  in jl2005c_dostream()
332 			mutex_unlock(&gspca_dev->usb_lock);  in jl2005c_dostream()
333 			if (ret < 0)  in jl2005c_dostream()
335 			ret = usb_bulk_msg(gspca_dev->dev,  in jl2005c_dostream()
336 				usb_rcvbulkpipe(gspca_dev->dev, 0x82),  in jl2005c_dostream()
342 			if (ret < 0 || act_len < JL2005C_MAX_TRANSFER)  in jl2005c_dostream()
345 			if (memcmp(header_sig, buffer, 2) != 0) {  in jl2005c_dostream()
351 			bytes_left = buffer[0x07] * dev->block_size - act_len;  in jl2005c_dostream()
360 		while (bytes_left > 0 && gspca_dev->present) {  in jl2005c_dostream()
363 			ret = usb_bulk_msg(gspca_dev->dev,  in jl2005c_dostream()
364 				usb_rcvbulkpipe(gspca_dev->dev, 0x82),  in jl2005c_dostream()
367 			if (ret < 0 || act_len < data_len)  in jl2005c_dostream()
372 			bytes_left -= data_len;  in jl2005c_dostream()
373 			if (bytes_left == 0) {  in jl2005c_dostream()
383 	if (gspca_dev->present) {  in jl2005c_dostream()
384 		mutex_lock(&gspca_dev->usb_lock);  in jl2005c_dostream()
386 		mutex_unlock(&gspca_dev->usb_lock);  in jl2005c_dostream()
398 	struct cam *cam;  in sd_config()  local
401 	cam = &gspca_dev->cam;  in sd_config()
403 	cam->bulk_size = 64;  in sd_config()
404 	cam->bulk = 1;  in sd_config()
410 	 * {0x45, 0x02, 0x08, 0xb9, 0x00, 0xd2}	No-name JL2005B  in sd_config()
412 	 * {0x01, 0x0c, 0x16, 0x10, 0xf8, 0xc8}	Argus DC-1512  in sd_config()
419 	if ((sd->firmware_id[0] & 0xf0) == 0x40) {  in sd_config()
420 		cam->cam_mode	= cif_mode;  in sd_config()
421 		cam->nmodes	= ARRAY_SIZE(cif_mode);  in sd_config()
422 		sd->block_size	= 0x80;  in sd_config()
424 		cam->cam_mode	= vga_mode;  in sd_config()
425 		cam->nmodes	= ARRAY_SIZE(vga_mode);  in sd_config()
426 		sd->block_size	= 0x200;  in sd_config()
429 	INIT_WORK(&sd->work_struct, jl2005c_dostream);  in sd_config()
444 	sd->cap_mode = gspca_dev->cam.cam_mode;  in sd_start()
446 	switch (gspca_dev->pixfmt.width) {  in sd_start()
465 		return -1;  in sd_start()
468 	schedule_work(&sd->work_struct);  in sd_start()
474 /* the usb_lock is held at entry - restore on exit */
480 	mutex_unlock(&gspca_dev->usb_lock);  in sd_stop0()
482 	flush_work(&dev->work_struct);  in sd_stop0()
483 	mutex_lock(&gspca_dev->usb_lock);  in sd_stop0()
488 /* sub-driver description */
497 /* -- module initialisation -- */
504 /* -- device connect -- */