73 static int em2800_i2c_send_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)  in em2800_i2c_send_bytes()  argument
79 	if (len < 1 || len > 4)  in em2800_i2c_send_bytes()
82 	b2[5] = 0x80 + len - 1;  in em2800_i2c_send_bytes()
85 	if (len > 1)  in em2800_i2c_send_bytes()
87 	if (len > 2)  in em2800_i2c_send_bytes()
89 	if (len > 3)  in em2800_i2c_send_bytes()
93 	ret = dev->em28xx_write_regs(dev, 4 - len, &b2[4 - len], 2 + len);  in em2800_i2c_send_bytes()
94 	if (ret != 2 + len) {  in em2800_i2c_send_bytes()
103 		if (ret == 0x80 + len - 1)  in em2800_i2c_send_bytes()
104 			return len;  in em2800_i2c_send_bytes()
105 		if (ret == 0x94 + len - 1) {  in em2800_i2c_send_bytes()
125 static int em2800_i2c_recv_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)  in em2800_i2c_recv_bytes()  argument
132 	if (len < 1 || len > 4)  in em2800_i2c_recv_bytes()
136 	buf2[1] = 0x84 + len - 1;  in em2800_i2c_recv_bytes()
149 		if (ret == 0x84 + len - 1)  in em2800_i2c_recv_bytes()
151 		if (ret == 0x94 + len - 1) {  in em2800_i2c_recv_bytes()
164 	if (ret != 0x84 + len - 1)  in em2800_i2c_recv_bytes()
168 	ret = dev->em28xx_read_reg_req_len(dev, 0x00, 4 - len, buf2, len);  in em2800_i2c_recv_bytes()
169 	if (ret != len) {  in em2800_i2c_recv_bytes()
175 	for (i = 0; i < len; i++)  in em2800_i2c_recv_bytes()
176 		buf[i] = buf2[len - 1 - i];  in em2800_i2c_recv_bytes()
200 				 u16 len, int stop)  in em28xx_i2c_send_bytes()  argument
205 	if (len < 1 || len > 64)  in em28xx_i2c_send_bytes()
213 	ret = dev->em28xx_write_regs_req(dev, stop ? 2 : 3, addr, buf, len);  in em28xx_i2c_send_bytes()
214 	if (ret != len) {  in em28xx_i2c_send_bytes()
223 				len, addr, ret);  in em28xx_i2c_send_bytes()
231 			return len;  in em28xx_i2c_send_bytes()
269 static int em28xx_i2c_recv_bytes(struct em28xx *dev, u16 addr, u8 *buf, u16 len)  in em28xx_i2c_recv_bytes()  argument
273 	if (len < 1 || len > 64)  in em28xx_i2c_recv_bytes()
281 	ret = dev->em28xx_read_reg_req_len(dev, 2, addr, buf, len);  in em28xx_i2c_recv_bytes()
287 	} else if (ret != len) {  in em28xx_i2c_recv_bytes()
290 				ret, addr, len);  in em28xx_i2c_recv_bytes()
304 		return len;  in em28xx_i2c_recv_bytes()
351 				   u16 len)  in em25xx_bus_B_send_bytes()  argument
355 	if (len < 1 || len > 64)  in em25xx_bus_B_send_bytes()
363 	ret = dev->em28xx_write_regs_req(dev, 0x06, addr, buf, len);  in em25xx_bus_B_send_bytes()
364 	if (ret != len) {  in em25xx_bus_B_send_bytes()
374 			 len, addr, ret);  in em25xx_bus_B_send_bytes()
384 		return len;  in em25xx_bus_B_send_bytes()
404 				   u16 len)  in em25xx_bus_B_recv_bytes()  argument
408 	if (len < 1 || len > 64)  in em25xx_bus_B_recv_bytes()
416 	ret = dev->em28xx_read_reg_req_len(dev, 0x06, addr, buf, len);  in em25xx_bus_B_recv_bytes()
439 		return len;  in em25xx_bus_B_recv_bytes()
496 		rc = em28xx_i2c_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
498 		rc = em2800_i2c_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
500 		rc = em25xx_bus_B_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
512 		rc = em28xx_i2c_send_bytes(dev, addr, msg.buf, msg.len, stop);  in i2c_send_bytes()
514 		rc = em2800_i2c_send_bytes(dev, addr, msg.buf, msg.len);  in i2c_send_bytes()
516 		rc = em25xx_bus_B_send_bytes(dev, addr, msg.buf, msg.len);  in i2c_send_bytes()
558 		if (!msgs[i].len) {  in em28xx_i2c_xfer()
581 			addr, msgs[i].len,  in em28xx_i2c_xfer()
582 			msgs[i].len, msgs[i].buf);  in em28xx_i2c_xfer()
592 		addr, msgs[i].len,  in em28xx_i2c_xfer()
609 	int len = 0;  in em28xx_hash_mem()  local
613 		if (len == length) {  in em28xx_hash_mem()
614 			c = (char)len;  in em28xx_hash_mem()
615 			len = -1;  in em28xx_hash_mem()
620 		len++;  in em28xx_hash_mem()
621 		if ((len & (32 / 8 - 1)) == 0)  in em28xx_hash_mem()
623 	} while (len);  in em28xx_hash_mem()
633 				 bool addr_w16, u16 len, u8 *data)  in em28xx_i2c_read_block()  argument
635 	int remain = len, rsize, rsize_max, ret;  in em28xx_i2c_read_block()
667 	return len;  in em28xx_i2c_read_block()
673 	const u16 len = 256;  in em28xx_i2c_eeprom()  local
697 	data = kzalloc(len, GFP_KERNEL);  in em28xx_i2c_eeprom()
704 				    len, data);  in em28xx_i2c_eeprom()
705 	if (err != len) {  in em28xx_i2c_eeprom()
714 			       16, 1, data, len, true);  in em28xx_i2c_eeprom()
727 		dev->hash = em28xx_hash_mem(data, len, 32);  in em28xx_i2c_eeprom()
771 		err = em28xx_i2c_read_block(dev, bus, hwconf_offset, 1, len,  in em28xx_i2c_eeprom()
773 		if (err != len) {  in em28xx_i2c_eeprom()
798 		dev->hash = em28xx_hash_mem(data, len, 32);  in em28xx_i2c_eeprom()
812 	*eedata_len = len;  in em28xx_i2c_eeprom()