61 static int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 *buf)  in w1_ds2438_get_page()  argument
69 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_page()
73 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_get_page()
75 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_page()
79 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_get_page()
81 		count = w1_read_block(sl->master, buf, DS2438_PAGE_SIZE + 1);  in w1_ds2438_get_page()
93 static int w1_ds2438_get_temperature(struct w1_slave *sl, int16_t *temperature)  in w1_ds2438_get_temperature()  argument
101 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
104 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_temperature()
106 		w1_write_8(sl->master, W1_DS2438_CONVERT_TEMP);  in w1_ds2438_get_temperature()
108 		mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
115 		if (mutex_lock_interruptible(&sl->master->bus_mutex) != 0) {  in w1_ds2438_get_temperature()
123 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_temperature()
129 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
135 static int w1_ds2438_change_config_bit(struct w1_slave *sl, u8 mask, u8 value)  in w1_ds2438_change_config_bit()  argument
143 		if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
147 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
149 		if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
153 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
156 		status = w1_read_8(sl->master);  in w1_ds2438_change_config_bit()
175 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
180 			w1_write_block(sl->master, w1_buf, 3);  in w1_ds2438_change_config_bit()
182 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
186 			w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
194 static int w1_ds2438_change_offset_register(struct w1_slave *sl, u8 *value)  in w1_ds2438_change_offset_register()  argument
200 	if (w1_ds2438_get_page(sl, 1, w1_page1_buf) == 0) {  in w1_ds2438_change_offset_register()
205 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_offset_register()
209 			w1_write_block(sl->master, w1_buf, 9);  in w1_ds2438_change_offset_register()
211 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_offset_register()
215 			w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_offset_register()
222 static int w1_ds2438_get_voltage(struct w1_slave *sl,  in w1_ds2438_get_voltage()  argument
231 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
233 	if (w1_ds2438_change_config_bit(sl, DS2438_STATUS_AD, adc_input)) {  in w1_ds2438_get_voltage()
239 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_voltage()
241 		w1_write_8(sl->master, W1_DS2438_CONVERT_VOLTAGE);  in w1_ds2438_get_voltage()
243 		mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
250 		if (mutex_lock_interruptible(&sl->master->bus_mutex) != 0) {  in w1_ds2438_get_voltage()
258 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_voltage()
265 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
271 static int w1_ds2438_get_current(struct w1_slave *sl, int16_t *voltage)  in w1_ds2438_get_current()  argument
276 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_current()
278 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_current()
285 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_current()
294 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in iad_write()  local
300 	mutex_lock(&sl->master->bus_mutex);  in iad_write()
302 	if (w1_ds2438_change_config_bit(sl, DS2438_STATUS_IAD, *buf & 0x01) == 0)  in iad_write()
307 	mutex_unlock(&sl->master->bus_mutex);  in iad_write()
316 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in iad_read()  local
325 	if (w1_ds2438_get_current(sl, &voltage) == 0)  in iad_read()
337 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in page0_read()  local
346 	mutex_lock(&sl->master->bus_mutex);  in page0_read()
352 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in page0_read()
358 	mutex_unlock(&sl->master->bus_mutex);  in page0_read()
367 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in page1_read()  local
376 	mutex_lock(&sl->master->bus_mutex);  in page1_read()
382 	if (w1_ds2438_get_page(sl, 1, w1_buf) == 0) {  in page1_read()
388 	mutex_unlock(&sl->master->bus_mutex);  in page1_read()
397 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in offset_write()  local
400 	mutex_lock(&sl->master->bus_mutex);  in offset_write()
402 	if (w1_ds2438_change_offset_register(sl, buf) == 0)  in offset_write()
407 	mutex_unlock(&sl->master->bus_mutex);  in offset_write()
416 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in temperature_read()  local
425 	if (w1_ds2438_get_temperature(sl, &temp) == 0)  in temperature_read()
437 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in vad_read()  local
446 	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VAD, &voltage) == 0)  in vad_read()
458 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in vdd_read()  local
467 	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VDD, &voltage) == 0)  in vdd_read()