83 static int em2800_i2c_send_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)  in em2800_i2c_send_bytes()  argument
89 	if (len < 1 || len > 4)  in em2800_i2c_send_bytes()
92 	b2[5] = 0x80 + len - 1;  in em2800_i2c_send_bytes()
95 	if (len > 1)  in em2800_i2c_send_bytes()
97 	if (len > 2)  in em2800_i2c_send_bytes()
99 	if (len > 3)  in em2800_i2c_send_bytes()
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()
113 		if (ret == 0x80 + len - 1)  in em2800_i2c_send_bytes()
114 			return len;  in em2800_i2c_send_bytes()
115 		if (ret == 0x94 + len - 1) {  in em2800_i2c_send_bytes()
135 static int em2800_i2c_recv_bytes(struct em28xx *dev, u8 addr, u8 *buf, u16 len)  in em2800_i2c_recv_bytes()  argument
142 	if (len < 1 || len > 4)  in em2800_i2c_recv_bytes()
146 	buf2[1] = 0x84 + len - 1;  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()
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()
185 	for (i = 0; i < len; i++)  in em2800_i2c_recv_bytes()
186 		buf[i] = buf2[len - 1 - i];  in em2800_i2c_recv_bytes()
210 				 u16 len, int stop)  in em28xx_i2c_send_bytes()  argument
215 	if (len < 1 || len > 64)  in em28xx_i2c_send_bytes()
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()
233 				len, addr, ret);  in em28xx_i2c_send_bytes()
241 			return len;  in em28xx_i2c_send_bytes()
279 static int em28xx_i2c_recv_bytes(struct em28xx *dev, u16 addr, u8 *buf, u16 len)  in em28xx_i2c_recv_bytes()  argument
283 	if (len < 1 || len > 64)  in em28xx_i2c_recv_bytes()
291 	ret = dev->em28xx_read_reg_req_len(dev, 2, addr, buf, len);  in em28xx_i2c_recv_bytes()
297 	} else if (ret != len) {  in em28xx_i2c_recv_bytes()
300 				ret, addr, len);  in em28xx_i2c_recv_bytes()
314 		return len;  in em28xx_i2c_recv_bytes()
361 				   u16 len)  in em25xx_bus_B_send_bytes()  argument
365 	if (len < 1 || len > 64)  in em25xx_bus_B_send_bytes()
373 	ret = dev->em28xx_write_regs_req(dev, 0x06, addr, buf, len);  in em25xx_bus_B_send_bytes()
374 	if (ret != len) {  in em25xx_bus_B_send_bytes()
384 			 len, addr, ret);  in em25xx_bus_B_send_bytes()
394 		return len;  in em25xx_bus_B_send_bytes()
414 				   u16 len)  in em25xx_bus_B_recv_bytes()  argument
418 	if (len < 1 || len > 64)  in em25xx_bus_B_recv_bytes()
426 	ret = dev->em28xx_read_reg_req_len(dev, 0x06, addr, buf, len);  in em25xx_bus_B_recv_bytes()
449 		return len;  in em25xx_bus_B_recv_bytes()
506 		rc = em28xx_i2c_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
508 		rc = em2800_i2c_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
510 		rc = em25xx_bus_B_recv_bytes(dev, addr, msg.buf, msg.len);  in i2c_recv_bytes()
522 		rc = em28xx_i2c_send_bytes(dev, addr, msg.buf, msg.len, stop);  in i2c_send_bytes()
524 		rc = em2800_i2c_send_bytes(dev, addr, msg.buf, msg.len);  in i2c_send_bytes()
526 		rc = em25xx_bus_B_send_bytes(dev, addr, msg.buf, msg.len);  in i2c_send_bytes()
568 		if (!msgs[i].len) {  in em28xx_i2c_xfer()
591 			addr, msgs[i].len,  in em28xx_i2c_xfer()
592 			msgs[i].len, msgs[i].buf);  in em28xx_i2c_xfer()
602 		addr, msgs[i].len,  in em28xx_i2c_xfer()
619 	int len = 0;  in em28xx_hash_mem()  local
623 		if (len == length) {  in em28xx_hash_mem()
624 			c = (char)len;  in em28xx_hash_mem()
625 			len = -1;  in em28xx_hash_mem()
630 		len++;  in em28xx_hash_mem()
631 		if ((len & (32 / 8 - 1)) == 0)  in em28xx_hash_mem()
633 	} while (len);  in em28xx_hash_mem()
643 				 bool addr_w16, u16 len, u8 *data)  in em28xx_i2c_read_block()  argument
645 	int remain = len, rsize, rsize_max, ret;  in em28xx_i2c_read_block()
677 	return len;  in em28xx_i2c_read_block()
683 	const u16 len = 256;  in em28xx_i2c_eeprom()  local
707 	data = kzalloc(len, GFP_KERNEL);  in em28xx_i2c_eeprom()
714 				    len, data);  in em28xx_i2c_eeprom()
715 	if (err != len) {  in em28xx_i2c_eeprom()
724 			       16, 1, data, len, true);  in em28xx_i2c_eeprom()
737 		dev->hash = em28xx_hash_mem(data, len, 32);  in em28xx_i2c_eeprom()
781 		err = em28xx_i2c_read_block(dev, bus, hwconf_offset, 1, len,  in em28xx_i2c_eeprom()
783 		if (err != len) {  in em28xx_i2c_eeprom()
808 		dev->hash = em28xx_hash_mem(data, len, 32);  in em28xx_i2c_eeprom()
822 	*eedata_len = len;  in em28xx_i2c_eeprom()