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()
190 	bit_dbg(2, &i2c_adap->dev, "i2c_outb: 0x%02x %s\n", (int)c,  in i2c_outb()
199 static int i2c_inb(struct i2c_adapter *i2c_adap)  in i2c_inb()  argument
205 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in i2c_inb()
211 			bit_dbg(1, &i2c_adap->dev,  in i2c_inb()
230 static int test_bus(struct i2c_adapter *i2c_adap)  in test_bus()  argument
232 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in test_bus()
233 	const char *name = i2c_adap->name;  in test_bus()
237 		ret = adap->pre_xfer(i2c_adap);  in test_bus()
295 		adap->post_xfer(i2c_adap);  in test_bus()
304 		adap->post_xfer(i2c_adap);  in test_bus()
319 static int try_address(struct i2c_adapter *i2c_adap,  in try_address()  argument
322 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in try_address()
326 		ret = i2c_outb(i2c_adap, addr);  in try_address()
329 		bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n");  in try_address()
333 		bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");  in try_address()
337 		bit_dbg(1, &i2c_adap->dev,  in try_address()
344 static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in sendbytes()  argument
353 		retval = i2c_outb(i2c_adap, *temp);  in sendbytes()
366 			dev_err(&i2c_adap->dev, "sendbytes: NAK bailout.\n");  in sendbytes()
377 			dev_err(&i2c_adap->dev, "sendbytes: error %d\n",  in sendbytes()
385 static int acknak(struct i2c_adapter *i2c_adap, int is_ack)  in acknak()  argument
387 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in acknak()
394 		dev_err(&i2c_adap->dev, "readbytes: ack/nak timeout\n");  in acknak()
401 static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in readbytes()  argument
408 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in readbytes()
414 		inval = i2c_inb(i2c_adap);  in readbytes()
430 					acknak(i2c_adap, 0);  in readbytes()
431 				dev_err(&i2c_adap->dev,  in readbytes()
443 		bit_dbg(2, &i2c_adap->dev, "readbytes: 0x%02x %s\n",  in readbytes()
450 			inval = acknak(i2c_adap, count);  in readbytes()
466 static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg)  in bit_doAddress()  argument
470 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_doAddress()
475 	retries = nak_ok ? 0 : i2c_adap->retries;  in bit_doAddress()
480 		bit_dbg(2, &i2c_adap->dev, "addr0: %d\n", addr);  in bit_doAddress()
482 		ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
484 			dev_err(&i2c_adap->dev,  in bit_doAddress()
489 		ret = i2c_outb(i2c_adap, msg->addr & 0xff);  in bit_doAddress()
492 			dev_err(&i2c_adap->dev, "died at 2nd address code\n");  in bit_doAddress()
496 			bit_dbg(3, &i2c_adap->dev,  in bit_doAddress()
501 			ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
503 				dev_err(&i2c_adap->dev,  in bit_doAddress()
512 		ret = try_address(i2c_adap, addr, retries);  in bit_doAddress()
520 static int bit_xfer(struct i2c_adapter *i2c_adap,  in bit_xfer()  argument
524 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_xfer()
529 		ret = adap->pre_xfer(i2c_adap);  in bit_xfer()
534 	bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");  in bit_xfer()
542 					bit_dbg(3, &i2c_adap->dev,  in bit_xfer()
547 					bit_dbg(3, &i2c_adap->dev,  in bit_xfer()
552 			ret = bit_doAddress(i2c_adap, pmsg);  in bit_xfer()
554 				bit_dbg(1, &i2c_adap->dev,  in bit_xfer()
562 			ret = readbytes(i2c_adap, pmsg);  in bit_xfer()
564 				bit_dbg(2, &i2c_adap->dev, "read %d byte%s\n",  in bit_xfer()
573 			ret = sendbytes(i2c_adap, pmsg);  in bit_xfer()
575 				bit_dbg(2, &i2c_adap->dev, "wrote %d byte%s\n",  in bit_xfer()
587 	bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n");  in bit_xfer()
591 		adap->post_xfer(i2c_adap);  in bit_xfer()
601 static int bit_xfer_atomic(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[],  in bit_xfer_atomic()  argument
604 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;  in bit_xfer_atomic()
607 		dev_warn(&i2c_adap->dev, "not flagged for atomic transfers\n");  in bit_xfer_atomic()
609 	return bit_xfer(i2c_adap, msgs, num);  in bit_xfer_atomic()