114 	struct ds2482_data	*pdev;  member
151 static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr)  in ds2482_select_register()  argument
153 	if (pdev->read_prt != read_ptr) {  in ds2482_select_register()
154 		if (i2c_smbus_write_byte_data(pdev->client,  in ds2482_select_register()
159 		pdev->read_prt = read_ptr;  in ds2482_select_register()
172 static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd)  in ds2482_send_cmd()  argument
174 	if (i2c_smbus_write_byte(pdev->client, cmd) < 0)  in ds2482_send_cmd()
177 	pdev->read_prt = DS2482_PTR_CODE_STATUS;  in ds2482_send_cmd()
191 static inline int ds2482_send_cmd_data(struct ds2482_data *pdev,  in ds2482_send_cmd_data()  argument
194 	if (i2c_smbus_write_byte_data(pdev->client, cmd, byte) < 0)  in ds2482_send_cmd_data()
198 	pdev->read_prt = (cmd != DS2482_CMD_WRITE_CONFIG) ?  in ds2482_send_cmd_data()
216 static int ds2482_wait_1wire_idle(struct ds2482_data *pdev)  in ds2482_wait_1wire_idle()  argument
221 	if (!ds2482_select_register(pdev, DS2482_PTR_CODE_STATUS)) {  in ds2482_wait_1wire_idle()
223 			temp = i2c_smbus_read_byte(pdev->client);  in ds2482_wait_1wire_idle()
230 		       __func__, pdev->channel);  in ds2482_wait_1wire_idle()
243 static int ds2482_set_channel(struct ds2482_data *pdev, u8 channel)  in ds2482_set_channel()  argument
245 	if (i2c_smbus_write_byte_data(pdev->client, DS2482_CMD_CHANNEL_SELECT,  in ds2482_set_channel()
249 	pdev->read_prt = DS2482_PTR_CODE_CHANNEL;  in ds2482_set_channel()
250 	pdev->channel = -1;  in ds2482_set_channel()
251 	if (i2c_smbus_read_byte(pdev->client) == ds2482_chan_rd[channel]) {  in ds2482_set_channel()
252 		pdev->channel = channel;  in ds2482_set_channel()
269 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_touch_bit()  local
272 	mutex_lock(&pdev->access_lock);  in ds2482_w1_touch_bit()
275 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_touch_bit()
276 	if (pdev->w1_count > 1)  in ds2482_w1_touch_bit()
277 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_touch_bit()
280 	if (!ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_SINGLE_BIT,  in ds2482_w1_touch_bit()
282 		status = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_touch_bit()
284 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_touch_bit()
301 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_triplet()  local
304 	mutex_lock(&pdev->access_lock);  in ds2482_w1_triplet()
307 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_triplet()
308 	if (pdev->w1_count > 1)  in ds2482_w1_triplet()
309 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_triplet()
312 	if (!ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_TRIPLET,  in ds2482_w1_triplet()
314 		status = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_triplet()
316 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_triplet()
331 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_write_byte()  local
333 	mutex_lock(&pdev->access_lock);  in ds2482_w1_write_byte()
336 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_write_byte()
337 	if (pdev->w1_count > 1)  in ds2482_w1_write_byte()
338 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_write_byte()
341 	ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);  in ds2482_w1_write_byte()
343 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_write_byte()
355 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_read_byte()  local
358 	mutex_lock(&pdev->access_lock);  in ds2482_w1_read_byte()
361 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_read_byte()
362 	if (pdev->w1_count > 1)  in ds2482_w1_read_byte()
363 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_read_byte()
366 	ds2482_send_cmd(pdev, DS2482_CMD_1WIRE_READ_BYTE);  in ds2482_w1_read_byte()
369 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_read_byte()
372 	ds2482_select_register(pdev, DS2482_PTR_CODE_DATA);  in ds2482_w1_read_byte()
375 	result = i2c_smbus_read_byte(pdev->client);  in ds2482_w1_read_byte()
377 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_read_byte()
392 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_reset_bus()  local
396 	mutex_lock(&pdev->access_lock);  in ds2482_w1_reset_bus()
399 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_reset_bus()
400 	if (pdev->w1_count > 1)  in ds2482_w1_reset_bus()
401 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_reset_bus()
404 	err = ds2482_send_cmd(pdev, DS2482_CMD_1WIRE_RESET);  in ds2482_w1_reset_bus()
407 		err = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_reset_bus()
412 			ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG,  in ds2482_w1_reset_bus()
416 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_reset_bus()
424 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_set_pullup()  local
436 		ds2482_wait_1wire_idle(pdev);  in ds2482_w1_set_pullup()
438 		retval = ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG,  in ds2482_w1_set_pullup()
441 		ds2482_wait_1wire_idle(pdev);  in ds2482_w1_set_pullup()
499 		data->w1_ch[idx].pdev = data;  in ds2482_probe()
513 			data->w1_ch[idx].pdev = NULL;  in ds2482_probe()
522 		if (data->w1_ch[idx].pdev != NULL)  in ds2482_probe()
538 		if (data->w1_ch[idx].pdev != NULL)  in ds2482_remove()