39 #define set_pcf(adap, ctl, val) adap->setpcf(adap->data, ctl, val)  argument
40 #define get_pcf(adap, ctl) adap->getpcf(adap->data, ctl)  argument
41 #define get_own(adap) adap->getown(adap->data)  argument
42 #define get_clock(adap) adap->getclock(adap->data)  argument
43 #define i2c_outb(adap, val) adap->setpcf(adap->data, 0, val)  argument
44 #define i2c_inb(adap) adap->getpcf(adap->data, 0)  argument
48 static void i2c_start(struct i2c_algo_pcf_data *adap)  in i2c_start()  argument
51 	set_pcf(adap, 1, I2C_PCF_START);  in i2c_start()
54 static void i2c_repstart(struct i2c_algo_pcf_data *adap)  in i2c_repstart()  argument
57 	set_pcf(adap, 1, I2C_PCF_REPSTART);  in i2c_repstart()
60 static void i2c_stop(struct i2c_algo_pcf_data *adap)  in i2c_stop()  argument
63 	set_pcf(adap, 1, I2C_PCF_STOP);  in i2c_stop()
66 static void handle_lab(struct i2c_algo_pcf_data *adap, const int *status)  in handle_lab()  argument
77 	set_pcf(adap, 1, I2C_PCF_PIN);  in handle_lab()
78 	set_pcf(adap, 1, I2C_PCF_ESO);  in handle_lab()
88 	if (adap->lab_mdelay)  in handle_lab()
89 		mdelay(adap->lab_mdelay);  in handle_lab()
93 		get_pcf(adap, 1)));  in handle_lab()
96 static int wait_for_bb(struct i2c_algo_pcf_data *adap)  in wait_for_bb()  argument
102 	status = get_pcf(adap, 1);  in wait_for_bb()
106 		status = get_pcf(adap, 1);  in wait_for_bb()
117 static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status)  in wait_for_pin()  argument
122 	*status = get_pcf(adap, 1);  in wait_for_pin()
125 		adap->waitforpin(adap->data);  in wait_for_pin()
126 		*status = get_pcf(adap, 1);  in wait_for_pin()
129 		handle_lab(adap, status);  in wait_for_pin()
150 static int pcf_init_8584 (struct i2c_algo_pcf_data *adap)  in pcf_init_8584()  argument
155 				get_pcf(adap, 1)));  in pcf_init_8584()
158 	set_pcf(adap, 1, I2C_PCF_PIN);  in pcf_init_8584()
163 	if (((temp = get_pcf(adap, 1)) & 0x7f) != (0)) {  in pcf_init_8584()
169 	i2c_outb(adap, get_own(adap));  in pcf_init_8584()
171 	if ((temp = i2c_inb(adap)) != get_own(adap)) {  in pcf_init_8584()
177 	set_pcf(adap, 1, I2C_PCF_PIN | I2C_PCF_ES1);  in pcf_init_8584()
179 	if (((temp = get_pcf(adap, 1)) & 0x7f) != I2C_PCF_ES1) {  in pcf_init_8584()
185 	i2c_outb(adap, get_clock(adap));  in pcf_init_8584()
187 	if (((temp = i2c_inb(adap)) & 0x1f) != get_clock(adap)) {  in pcf_init_8584()
193 	set_pcf(adap, 1, I2C_PCF_IDLE);  in pcf_init_8584()
196 	if ((temp = get_pcf(adap, 1)) != (I2C_PCF_PIN | I2C_PCF_BB)) {  in pcf_init_8584()
209 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_sendbytes()  local
215 		i2c_outb(adap, buf[wrcount]);  in pcf_sendbytes()
216 		timeout = wait_for_pin(adap, &status);  in pcf_sendbytes()
221 			i2c_stop(adap);  in pcf_sendbytes()
226 			i2c_stop(adap);  in pcf_sendbytes()
232 		i2c_stop(adap);  in pcf_sendbytes()
234 		i2c_repstart(adap);  in pcf_sendbytes()
243 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_readbytes()  local
249 		if ((wfp = wait_for_pin(adap, &status))) {  in pcf_readbytes()
253 			i2c_stop(adap);  in pcf_readbytes()
259 			i2c_stop(adap);  in pcf_readbytes()
265 			set_pcf(adap, 1, I2C_PCF_ESO);  in pcf_readbytes()
268 				i2c_stop(adap);  in pcf_readbytes()
270 				i2c_repstart(adap);  in pcf_readbytes()
274 			buf[i - 1] = i2c_inb(adap);  in pcf_readbytes()
276 			i2c_inb(adap); /* dummy read */  in pcf_readbytes()
283 static int pcf_doAddress(struct i2c_algo_pcf_data *adap,  in pcf_doAddress()  argument
290 	i2c_outb(adap, addr);  in pcf_doAddress()
299 	struct i2c_algo_pcf_data *adap = i2c_adap->algo_data;  in pcf_xfer()  local
304 	if (adap->xfer_begin)  in pcf_xfer()
305 		adap->xfer_begin(adap->data);  in pcf_xfer()
308 	timeout = wait_for_bb(adap);  in pcf_xfer()
323 		ret = pcf_doAddress(adap, pmsg);  in pcf_xfer()
327 			i2c_start(adap);  in pcf_xfer()
330 		timeout = wait_for_pin(adap, &status);  in pcf_xfer()
337 			i2c_stop(adap);  in pcf_xfer()
346 			i2c_stop(adap);  in pcf_xfer()
379 	if (adap->xfer_end)  in pcf_xfer()
380 		adap->xfer_end(adap->data);  in pcf_xfer()
384 static u32 pcf_func(struct i2c_adapter *adap)  in pcf_func()  argument
399 int i2c_pcf_add_bus(struct i2c_adapter *adap)  in i2c_pcf_add_bus()  argument
401 	struct i2c_algo_pcf_data *pcf_adap = adap->algo_data;  in i2c_pcf_add_bus()
404 	DEB2(dev_dbg(&adap->dev, "hw routines registered.\n"));  in i2c_pcf_add_bus()
407 	adap->algo = &pcf_algo;  in i2c_pcf_add_bus()
412 	rval = i2c_add_adapter(adap);  in i2c_pcf_add_bus()