38 #define set_pcf(adap, ctl, val) adap->setpcf(adap->data, ctl, val)  argument
39 #define get_pcf(adap, ctl) adap->getpcf(adap->data, ctl)  argument
40 #define get_own(adap) adap->getown(adap->data)  argument
41 #define get_clock(adap) adap->getclock(adap->data)  argument
42 #define i2c_outb(adap, val) adap->setpcf(adap->data, 0, val)  argument
43 #define i2c_inb(adap) adap->getpcf(adap->data, 0)  argument
47 static void i2c_start(struct i2c_algo_pcf_data *adap)  in i2c_start()  argument
50 	set_pcf(adap, 1, I2C_PCF_START);  in i2c_start()
53 static void i2c_repstart(struct i2c_algo_pcf_data *adap)  in i2c_repstart()  argument
56 	set_pcf(adap, 1, I2C_PCF_REPSTART);  in i2c_repstart()
59 static void i2c_stop(struct i2c_algo_pcf_data *adap)  in i2c_stop()  argument
62 	set_pcf(adap, 1, I2C_PCF_STOP);  in i2c_stop()
65 static void handle_lab(struct i2c_algo_pcf_data *adap, const int *status)  in handle_lab()  argument
76 	set_pcf(adap, 1, I2C_PCF_PIN);  in handle_lab()
77 	set_pcf(adap, 1, I2C_PCF_ESO);  in handle_lab()
87 	if (adap->lab_mdelay)  in handle_lab()
88 		mdelay(adap->lab_mdelay);  in handle_lab()
92 		get_pcf(adap, 1)));  in handle_lab()
95 static int wait_for_bb(struct i2c_algo_pcf_data *adap)  in wait_for_bb()  argument
101 	status = get_pcf(adap, 1);  in wait_for_bb()
105 		status = get_pcf(adap, 1);  in wait_for_bb()
116 static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status)  in wait_for_pin()  argument
121 	*status = get_pcf(adap, 1);  in wait_for_pin()
124 		adap->waitforpin(adap->data);  in wait_for_pin()
125 		*status = get_pcf(adap, 1);  in wait_for_pin()
128 		handle_lab(adap, status);  in wait_for_pin()
149 static int pcf_init_8584 (struct i2c_algo_pcf_data *adap)  in pcf_init_8584()  argument
154 				get_pcf(adap, 1)));  in pcf_init_8584()
157 	set_pcf(adap, 1, I2C_PCF_PIN);  in pcf_init_8584()
162 	if (((temp = get_pcf(adap, 1)) & 0x7f) != (0)) {  in pcf_init_8584()
168 	i2c_outb(adap, get_own(adap));  in pcf_init_8584()
170 	if ((temp = i2c_inb(adap)) != get_own(adap)) {  in pcf_init_8584()
176 	set_pcf(adap, 1, I2C_PCF_PIN | I2C_PCF_ES1);  in pcf_init_8584()
178 	if (((temp = get_pcf(adap, 1)) & 0x7f) != I2C_PCF_ES1) {  in pcf_init_8584()
184 	i2c_outb(adap, get_clock(adap));  in pcf_init_8584()
186 	if (((temp = i2c_inb(adap)) & 0x1f) != get_clock(adap)) {  in pcf_init_8584()
192 	set_pcf(adap, 1, I2C_PCF_IDLE);  in pcf_init_8584()
195 	if ((temp = get_pcf(adap, 1)) != (I2C_PCF_PIN | I2C_PCF_BB)) {  in pcf_init_8584()
208 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_sendbytes()  local
214 		i2c_outb(adap, buf[wrcount]);  in pcf_sendbytes()
215 		timeout = wait_for_pin(adap, &status);  in pcf_sendbytes()
220 			i2c_stop(adap);  in pcf_sendbytes()
225 			i2c_stop(adap);  in pcf_sendbytes()
231 		i2c_stop(adap);  in pcf_sendbytes()
233 		i2c_repstart(adap);  in pcf_sendbytes()
242 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_readbytes()  local
248 		if ((wfp = wait_for_pin(adap, &status))) {  in pcf_readbytes()
252 			i2c_stop(adap);  in pcf_readbytes()
258 			i2c_stop(adap);  in pcf_readbytes()
264 			set_pcf(adap, 1, I2C_PCF_ESO);  in pcf_readbytes()
267 				i2c_stop(adap);  in pcf_readbytes()
269 				i2c_repstart(adap);  in pcf_readbytes()
273 			buf[i - 1] = i2c_inb(adap);  in pcf_readbytes()
275 			i2c_inb(adap); /* dummy read */  in pcf_readbytes()
282 static int pcf_doAddress(struct i2c_algo_pcf_data *adap,  in pcf_doAddress()  argument
289 	i2c_outb(adap, addr);  in pcf_doAddress()
298 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_xfer()  local
303 	if (adap->xfer_begin)  in pcf_xfer()
304 		adap->xfer_begin(adap->data);  in pcf_xfer()
307 	timeout = wait_for_bb(adap);  in pcf_xfer()
322 		ret = pcf_doAddress(adap, pmsg);  in pcf_xfer()
326 			i2c_start(adap);  in pcf_xfer()
329 		timeout = wait_for_pin(adap, &status);  in pcf_xfer()
336 			i2c_stop(adap);  in pcf_xfer()
345 			i2c_stop(adap);  in pcf_xfer()
378 	if (adap->xfer_end)  in pcf_xfer()
379 		adap->xfer_end(adap->data);  in pcf_xfer()
383 static u32 pcf_func(struct i2c_adapter *adap)  in pcf_func()  argument
398 int i2c_pcf_add_bus(struct i2c_adapter *adap)  in i2c_pcf_add_bus()  argument
400 	struct i2c_algo_pcf_data *pcf_adap = adap->algo_data;  in i2c_pcf_add_bus()
403 	DEB2(dev_dbg(&adap->dev, "hw routines registered.\n"));  in i2c_pcf_add_bus()
406 	adap->algo = &pcf_algo;  in i2c_pcf_add_bus()
411 	rval = i2c_add_adapter(adap);  in i2c_pcf_add_bus()