152 static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c)  in i2c_outb()  argument
157 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in i2c_outb()
165 			bit_dbg(1, &i2c_adap->dev,  in i2c_outb()
180 		bit_dbg(1, &i2c_adap->dev,  in i2c_outb()
189 	bit_dbg(2, &i2c_adap->dev, "i2c_outb: 0x%02x %s\n", (int)c,  in i2c_outb()
198 static int i2c_inb(struct i2c_adapter *i2c_adap)  in i2c_inb()  argument
204 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in i2c_inb()
210 			bit_dbg(1, &i2c_adap->dev,  in i2c_inb()
229 static int test_bus(struct i2c_adapter *i2c_adap)  in test_bus()  argument
231 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in test_bus()
232 	const char *name = i2c_adap->name;  in test_bus()
236 		ret = adap->pre_xfer(i2c_adap);  in test_bus()
310 		adap->post_xfer(i2c_adap);  in test_bus()
319 		adap->post_xfer(i2c_adap);  in test_bus()
334 static int try_address(struct i2c_adapter *i2c_adap,  in try_address()  argument
337 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in try_address()
341 		ret = i2c_outb(i2c_adap, addr);  in try_address()
344 		bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n");  in try_address()
348 		bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");  in try_address()
352 		bit_dbg(1, &i2c_adap->dev,  in try_address()
359 static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in sendbytes()  argument
368 		retval = i2c_outb(i2c_adap, *temp);  in sendbytes()
381 			dev_err(&i2c_adap->dev, "sendbytes: NAK bailout.\n");  in sendbytes()
392 			dev_err(&i2c_adap->dev, "sendbytes: error %d\n",  in sendbytes()
400 static int acknak(struct i2c_adapter *i2c_adap, int is_ack)  in acknak()  argument
402 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in acknak()
409 		dev_err(&i2c_adap->dev, "readbytes: ack/nak timeout\n");  in acknak()
416 static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in readbytes()  argument
425 		inval = i2c_inb(i2c_adap);  in readbytes()
441 					acknak(i2c_adap, 0);  in readbytes()
442 				dev_err(&i2c_adap->dev,  in readbytes()
454 		bit_dbg(2, &i2c_adap->dev, "readbytes: 0x%02x %s\n",  in readbytes()
461 			inval = acknak(i2c_adap, count);  in readbytes()
477 static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in bit_doAddress()  argument
481 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_doAddress()
486 	retries = nak_ok ? 0 : i2c_adap->retries;  in bit_doAddress()
491 		bit_dbg(2, &i2c_adap->dev, "addr0: %d\n", addr);  in bit_doAddress()
493 		ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
495 			dev_err(&i2c_adap->dev,  in bit_doAddress()
500 		ret = i2c_outb(i2c_adap, msg->addr & 0xff);  in bit_doAddress()
503 			dev_err(&i2c_adap->dev, "died at 2nd address code\n");  in bit_doAddress()
507 			bit_dbg(3, &i2c_adap->dev,  in bit_doAddress()
512 			ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
514 				dev_err(&i2c_adap->dev,  in bit_doAddress()
523 		ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
531 static int bit_xfer(struct i2c_adapter *i2c_adap,  in bit_xfer()  argument
535 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_xfer()
540 		ret = adap->pre_xfer(i2c_adap);  in bit_xfer()
545 	bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");  in bit_xfer()
553 					bit_dbg(3, &i2c_adap->dev,  in bit_xfer()
558 					bit_dbg(3, &i2c_adap->dev,  in bit_xfer()
563 			ret = bit_doAddress(i2c_adap, pmsg);  in bit_xfer()
565 				bit_dbg(1, &i2c_adap->dev,  in bit_xfer()
573 			ret = readbytes(i2c_adap, pmsg);  in bit_xfer()
575 				bit_dbg(2, &i2c_adap->dev, "read %d byte%s\n",  in bit_xfer()
584 			ret = sendbytes(i2c_adap, pmsg);  in bit_xfer()
586 				bit_dbg(2, &i2c_adap->dev, "wrote %d byte%s\n",  in bit_xfer()
598 	bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n");  in bit_xfer()
602 		adap->post_xfer(i2c_adap);  in bit_xfer()
612 static int bit_xfer_atomic(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[],  in bit_xfer_atomic()  argument
615 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_xfer_atomic()
618 		dev_warn(&i2c_adap->dev, "not flagged for atomic transfers\n");  in bit_xfer_atomic()
620 	return bit_xfer(i2c_adap, msgs, num);  in bit_xfer_atomic()