65 				char *buf, int len)  in em2800_i2c_send_max4()  argument
70 	BUG_ON(len < 1 || len > 4);  in em2800_i2c_send_max4()
71 	b2[5] = 0x80 + len - 1;  in em2800_i2c_send_max4()
74 	if (len > 1)  in em2800_i2c_send_max4()
76 	if (len > 2)  in em2800_i2c_send_max4()
78 	if (len > 3)  in em2800_i2c_send_max4()
81 	ret = dev->em28xx_write_regs(dev, 4 - len, &b2[4 - len], 2 + len);  in em2800_i2c_send_max4()
82 	if (ret != 2 + len) {  in em2800_i2c_send_max4()
89 		if (ret == 0x80 + len - 1)  in em2800_i2c_send_max4()
90 			return len;  in em2800_i2c_send_max4()
101 				 short len)  in em2800_i2c_send_bytes()  argument
109 	while (len > 0) {  in em2800_i2c_send_bytes()
110 		count = (len > maxLen) ? maxLen : len;  in em2800_i2c_send_bytes()
113 			len -= count;  in em2800_i2c_send_bytes()
162 				 char *buf, int len)  in em2800_i2c_recv_bytes()  argument
173 	ret = dev->em28xx_read_reg_req_len(dev, 0x0, 0x3, buf, len);  in em2800_i2c_recv_bytes()
187 				 short len, int stop)  in em28xx_i2c_send_bytes()  argument
192 	wrcount = dev->em28xx_write_regs_req(dev, stop ? 2 : 3, addr, buf, len);  in em28xx_i2c_send_bytes()
202 				 char *buf, int len)  in em28xx_i2c_recv_bytes()  argument
205 	ret = dev->em28xx_read_reg_req_len(dev, 2, addr, buf, len);  in em28xx_i2c_recv_bytes()
251 			 i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len);  in em28xx_i2c_xfer()
252 		if (!msgs[i].len) { /* no len: check only for device presence */  in em28xx_i2c_xfer()
267 							   msgs[i].len);  in em28xx_i2c_xfer()
271 							   msgs[i].len);  in em28xx_i2c_xfer()
273 				for (byte = 0; byte < msgs[i].len; byte++)  in em28xx_i2c_xfer()
279 				for (byte = 0; byte < msgs[i].len; byte++)  in em28xx_i2c_xfer()
285 							   msgs[i].len);  in em28xx_i2c_xfer()
289 							   msgs[i].len,  in em28xx_i2c_xfer()
312 	int len = 0;  in em28xx_hash_mem()  local
315 		if (len == length) {  in em28xx_hash_mem()
316 			c = (char)len;  in em28xx_hash_mem()
317 			len = -1;  in em28xx_hash_mem()
321 		len++;  in em28xx_hash_mem()
322 		if ((len & (32 / 8 - 1)) == 0)  in em28xx_hash_mem()
324 	} while (len);  in em28xx_hash_mem()
329 static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)  in em28xx_i2c_eeprom()  argument
333 	int i, err, size = len, block;  in em28xx_i2c_eeprom()
352 		memset(eedata, 0, len);  in em28xx_i2c_eeprom()
380 	for (i = 0; i < len; i++) {  in em28xx_i2c_eeprom()
389 		dev->hash = em28xx_hash_mem(eedata, len, 32);  in em28xx_i2c_eeprom()