Cross Reference: /drivers/i2c/algos/i2c-algo-bit.c

Lines Matching refs:adap
63 #define setsda(adap, val)	adap->setsda(adap->data, val)
64 #define setscl(adap, val)	adap->setscl(adap->data, val)
65 #define getsda(adap)		adap->getsda(adap->data)
66 #define getscl(adap)		adap->getscl(adap->data)
68 static inline void sdalo(struct i2c_algo_bit_data *adap)
70 	setsda(adap, 0);
71 	udelay((adap->udelay + 1) / 2);
74 static inline void sdahi(struct i2c_algo_bit_data *adap)
76 	setsda(adap, 1);
77 	udelay((adap->udelay + 1) / 2);
80 static inline void scllo(struct i2c_algo_bit_data *adap)
82 	setscl(adap, 0);
83 	udelay(adap->udelay / 2);
90 static int sclhi(struct i2c_algo_bit_data *adap)
94 	setscl(adap, 1);
97 	if (!adap->getscl)
101 	while (!getscl(adap)) {
107 		if (time_after(jiffies, start + adap->timeout)) {
111 			if (getscl(adap))
124 	udelay(adap->udelay);
130 static void i2c_start(struct i2c_algo_bit_data *adap)
133 	setsda(adap, 0);
134 	udelay(adap->udelay);
135 	scllo(adap);
138 static void i2c_repstart(struct i2c_algo_bit_data *adap)
141 	sdahi(adap);
142 	sclhi(adap);
143 	setsda(adap, 0);
144 	udelay(adap->udelay);
145 	scllo(adap);
149 static void i2c_stop(struct i2c_algo_bit_data *adap)
152 	sdalo(adap);
153 	sclhi(adap);
154 	setsda(adap, 1);
155 	udelay(adap->udelay);
172 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
177 		setsda(adap, sb);
178 		udelay((adap->udelay + 1) / 2);
179 		if (sclhi(adap) < 0) { /* timed out */
185 		 * if (sb && !getsda(adap)) -> ouch! Get out of here.
190 		scllo(adap);
192 	sdahi(adap);
193 	if (sclhi(adap) < 0) { /* timeout */
202 	ack = !getsda(adap);    /* ack: sda is pulled low -> success */
206 	scllo(adap);
218 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
221 	sdahi(adap);
223 		if (sclhi(adap) < 0) { /* timeout */
229 		if (getsda(adap))
231 		setscl(adap, 0);
232 		udelay(i == 7 ? adap->udelay / 2 : adap->udelay);
244 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
248 	if (adap->pre_xfer) {
249 		ret = adap->pre_xfer(i2c_adap);
254 	if (adap->getscl == NULL)
257 	sda = getsda(adap);
258 	scl = (adap->getscl == NULL) ? 1 : getscl(adap);
266 	sdalo(adap);
267 	sda = getsda(adap);
268 	scl = (adap->getscl == NULL) ? 1 : getscl(adap);
279 	sdahi(adap);
280 	sda = getsda(adap);
281 	scl = (adap->getscl == NULL) ? 1 : getscl(adap);
292 	scllo(adap);
293 	sda = getsda(adap);
294 	scl = (adap->getscl == NULL) ? 0 : getscl(adap);
305 	sclhi(adap);
306 	sda = getsda(adap);
307 	scl = (adap->getscl == NULL) ? 1 : getscl(adap);
318 	if (adap->post_xfer)
319 		adap->post_xfer(i2c_adap);
324 	sdahi(adap);
325 	sclhi(adap);
327 	if (adap->post_xfer)
328 		adap->post_xfer(i2c_adap);
346 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
354 		i2c_stop(adap);
355 		udelay(adap->udelay);
358 		i2c_start(adap);
411 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
415 		setsda(adap, 0);
416 	udelay((adap->udelay + 1) / 2);
417 	if (sclhi(adap) < 0) {	/* timeout */
421 	scllo(adap);
489 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
517 			i2c_repstart(adap);
545 	struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
549 	if (adap->pre_xfer) {
550 		ret = adap->pre_xfer(i2c_adap);
556 	i2c_start(adap);
564 				i2c_repstart(adap);
602 	i2c_stop(adap);
604 	if (adap->post_xfer)
605 		adap->post_xfer(i2c_adap);
609 static u32 bit_func(struct i2c_adapter *adap)
629 static int __i2c_bit_add_bus(struct i2c_adapter *adap,
632 	struct i2c_algo_bit_data *bit_adap = adap->algo_data;
636 		ret = test_bus(adap);
642 	adap->algo = &i2c_bit_algo;
643 	adap->retries = 3;
645 	ret = add_adapter(adap);
651 		dev_warn(&adap->dev, "Not I2C compliant: can't read SCL\n");
652 		dev_warn(&adap->dev, "Bus may be unreliable\n");
657 int i2c_bit_add_bus(struct i2c_adapter *adap)
659 	return __i2c_bit_add_bus(adap, i2c_add_adapter);
663 int i2c_bit_add_numbered_bus(struct i2c_adapter *adap)
665 	return __i2c_bit_add_bus(adap, i2c_add_numbered_adapter);