86 	int ret;  in em2800_i2c_send_bytes()  local
103 	ret = dev->em28xx_write_regs(dev, 4 - len, &b2[4 - len], 2 + len);  in em2800_i2c_send_bytes()
104 	if (ret != 2 + len) {  in em2800_i2c_send_bytes()
107 			    addr, ret);  in em2800_i2c_send_bytes()
108 		return (ret < 0) ? ret : -EIO;  in em2800_i2c_send_bytes()
112 		ret = dev->em28xx_read_reg(dev, 0x05);  in em2800_i2c_send_bytes()
113 		if (ret == 0x80 + len - 1)  in em2800_i2c_send_bytes()
115 		if (ret == 0x94 + len - 1) {  in em2800_i2c_send_bytes()
116 			dprintk(1, "R05 returned 0x%02x: I2C ACK error\n", ret);  in em2800_i2c_send_bytes()
119 		if (ret < 0) {  in em2800_i2c_send_bytes()
122 				ret);  in em2800_i2c_send_bytes()
123 			return ret;  in em2800_i2c_send_bytes()
139 	int ret;  in em2800_i2c_recv_bytes()  local
148 	ret = dev->em28xx_write_regs(dev, 0x04, buf2, 2);  in em2800_i2c_recv_bytes()
149 	if (ret != 2) {  in em2800_i2c_recv_bytes()
152 			 addr, ret);  in em2800_i2c_recv_bytes()
153 		return (ret < 0) ? ret : -EIO;  in em2800_i2c_recv_bytes()
158 		ret = dev->em28xx_read_reg(dev, 0x05);  in em2800_i2c_recv_bytes()
159 		if (ret == 0x84 + len - 1)  in em2800_i2c_recv_bytes()
161 		if (ret == 0x94 + len - 1) {  in em2800_i2c_recv_bytes()
163 				ret);  in em2800_i2c_recv_bytes()
166 		if (ret < 0) {  in em2800_i2c_recv_bytes()
169 				 ret);  in em2800_i2c_recv_bytes()
170 			return ret;  in em2800_i2c_recv_bytes()
174 	if (ret != 0x84 + len - 1)  in em2800_i2c_recv_bytes()
178 	ret = dev->em28xx_read_reg_req_len(dev, 0x00, 4 - len, buf2, len);  in em2800_i2c_recv_bytes()
179 	if (ret != len) {  in em2800_i2c_recv_bytes()
182 			 addr, ret);  in em2800_i2c_recv_bytes()
183 		return (ret < 0) ? ret : -EIO;  in em2800_i2c_recv_bytes()
188 	return ret;  in em2800_i2c_recv_bytes()
198 	int ret;  in em2800_i2c_check_for_device()  local
200 	ret = em2800_i2c_recv_bytes(dev, addr, &buf, 1);  in em2800_i2c_check_for_device()
201 	if (ret == 1)  in em2800_i2c_check_for_device()
203 	return (ret < 0) ? ret : -EIO;  in em2800_i2c_check_for_device()
213 	int ret;  in em28xx_i2c_send_bytes()  local
223 	ret = dev->em28xx_write_regs_req(dev, stop ? 2 : 3, addr, buf, len);  in em28xx_i2c_send_bytes()
224 	if (ret != len) {  in em28xx_i2c_send_bytes()
225 		if (ret < 0) {  in em28xx_i2c_send_bytes()
228 				 addr, ret);  in em28xx_i2c_send_bytes()
229 			return ret;  in em28xx_i2c_send_bytes()
233 				len, addr, ret);  in em28xx_i2c_send_bytes()
239 		ret = dev->em28xx_read_reg(dev, 0x05);  in em28xx_i2c_send_bytes()
240 		if (ret == 0) /* success */  in em28xx_i2c_send_bytes()
242 		if (ret == 0x10) {  in em28xx_i2c_send_bytes()
247 		if (ret < 0) {  in em28xx_i2c_send_bytes()
250 				 ret);  in em28xx_i2c_send_bytes()
251 			return ret;  in em28xx_i2c_send_bytes()
261 	if (ret == 0x02 || ret == 0x04) {  in em28xx_i2c_send_bytes()
265 			addr, ret);  in em28xx_i2c_send_bytes()
271 		 addr, ret);  in em28xx_i2c_send_bytes()
281 	int ret;  in em28xx_i2c_recv_bytes()  local
291 	ret = dev->em28xx_read_reg_req_len(dev, 2, addr, buf, len);  in em28xx_i2c_recv_bytes()
292 	if (ret < 0) {  in em28xx_i2c_recv_bytes()
295 			 addr, ret);  in em28xx_i2c_recv_bytes()
296 		return ret;  in em28xx_i2c_recv_bytes()
308 	ret = dev->em28xx_read_reg(dev, 0x05);  in em28xx_i2c_recv_bytes()
309 	if (ret == 0) /* success */  in em28xx_i2c_recv_bytes()
311 	if (ret < 0) {  in em28xx_i2c_recv_bytes()
314 			 ret);  in em28xx_i2c_recv_bytes()
315 		return ret;  in em28xx_i2c_recv_bytes()
317 	if (ret == 0x10) {  in em28xx_i2c_recv_bytes()
323 	if (ret == 0x02 || ret == 0x04) {  in em28xx_i2c_recv_bytes()
327 			addr, ret);  in em28xx_i2c_recv_bytes()
333 		 addr, ret);  in em28xx_i2c_recv_bytes()
343 	int ret;  in em28xx_i2c_check_for_device()  local
346 	ret = em28xx_i2c_recv_bytes(dev, addr, &buf, 1);  in em28xx_i2c_check_for_device()
347 	if (ret == 1)  in em28xx_i2c_check_for_device()
349 	return (ret < 0) ? ret : -EIO;  in em28xx_i2c_check_for_device()
359 	int ret;  in em25xx_bus_B_send_bytes()  local
369 	ret = dev->em28xx_write_regs_req(dev, 0x06, addr, buf, len);  in em25xx_bus_B_send_bytes()
370 	if (ret != len) {  in em25xx_bus_B_send_bytes()
371 		if (ret < 0) {  in em25xx_bus_B_send_bytes()
374 				 addr, ret);  in em25xx_bus_B_send_bytes()
375 			return ret;  in em25xx_bus_B_send_bytes()
380 			 len, addr, ret);  in em25xx_bus_B_send_bytes()
384 	ret = dev->em28xx_read_reg_req(dev, 0x08, 0x0000);  in em25xx_bus_B_send_bytes()
389 	if (!ret)  in em25xx_bus_B_send_bytes()
392 	if (ret > 0) {  in em25xx_bus_B_send_bytes()
393 		dprintk(1, "Bus B R08 returned 0x%02x: I2C ACK error\n", ret);  in em25xx_bus_B_send_bytes()
397 	return ret;  in em25xx_bus_B_send_bytes()
412 	int ret;  in em25xx_bus_B_recv_bytes()  local
422 	ret = dev->em28xx_read_reg_req_len(dev, 0x06, addr, buf, len);  in em25xx_bus_B_recv_bytes()
423 	if (ret < 0) {  in em25xx_bus_B_recv_bytes()
426 			 addr, ret);  in em25xx_bus_B_recv_bytes()
427 		return ret;  in em25xx_bus_B_recv_bytes()
439 	ret = dev->em28xx_read_reg_req(dev, 0x08, 0x0000);  in em25xx_bus_B_recv_bytes()
444 	if (!ret)  in em25xx_bus_B_recv_bytes()
447 	if (ret > 0) {  in em25xx_bus_B_recv_bytes()
448 		dprintk(1, "Bus B R08 returned 0x%02x: I2C ACK error\n", ret);  in em25xx_bus_B_recv_bytes()
452 	return ret;  in em25xx_bus_B_recv_bytes()
467 	int ret;  in em25xx_bus_B_check_for_device()  local
469 	ret = em25xx_bus_B_recv_bytes(dev, addr, &buf, 1);  in em25xx_bus_B_check_for_device()
470 	if (ret < 0)  in em25xx_bus_B_check_for_device()
471 		return ret;  in em25xx_bus_B_check_for_device()
641 	int remain = len, rsize, rsize_max, ret;  in em28xx_i2c_read_block()  local
650 	ret = i2c_master_send(&dev->i2c_client[bus],  in em28xx_i2c_read_block()
652 	if (ret < 0)  in em28xx_i2c_read_block()
653 		return ret;  in em28xx_i2c_read_block()
665 		ret = i2c_master_recv(&dev->i2c_client[bus], data, rsize);  in em28xx_i2c_read_block()
666 		if (ret < 0)  in em28xx_i2c_read_block()
667 			return ret;  in em28xx_i2c_read_block()