103 	struct ds2482_data	*pdev;  member
145 static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr)  in ds2482_select_register()  argument
147 	if (pdev->read_prt != read_ptr) {  in ds2482_select_register()
148 		if (i2c_smbus_write_byte_data(pdev->client,  in ds2482_select_register()
153 		pdev->read_prt = read_ptr;  in ds2482_select_register()
166 static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd)  in ds2482_send_cmd()  argument
168 	if (i2c_smbus_write_byte(pdev->client, cmd) < 0)  in ds2482_send_cmd()
171 	pdev->read_prt = DS2482_PTR_CODE_STATUS;  in ds2482_send_cmd()
185 static inline int ds2482_send_cmd_data(struct ds2482_data *pdev,  in ds2482_send_cmd_data()  argument
188 	if (i2c_smbus_write_byte_data(pdev->client, cmd, byte) < 0)  in ds2482_send_cmd_data()
192 	pdev->read_prt = (cmd != DS2482_CMD_WRITE_CONFIG) ?  in ds2482_send_cmd_data()
210 static int ds2482_wait_1wire_idle(struct ds2482_data *pdev)  in ds2482_wait_1wire_idle()  argument
215 	if (!ds2482_select_register(pdev, DS2482_PTR_CODE_STATUS)) {  in ds2482_wait_1wire_idle()
217 			temp = i2c_smbus_read_byte(pdev->client);  in ds2482_wait_1wire_idle()
224 		       __func__, pdev->channel);  in ds2482_wait_1wire_idle()
237 static int ds2482_set_channel(struct ds2482_data *pdev, u8 channel)  in ds2482_set_channel()  argument
239 	if (i2c_smbus_write_byte_data(pdev->client, DS2482_CMD_CHANNEL_SELECT,  in ds2482_set_channel()
243 	pdev->read_prt = DS2482_PTR_CODE_CHANNEL;  in ds2482_set_channel()
244 	pdev->channel = -1;  in ds2482_set_channel()
245 	if (i2c_smbus_read_byte(pdev->client) == ds2482_chan_rd[channel]) {  in ds2482_set_channel()
246 		pdev->channel = channel;  in ds2482_set_channel()
263 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_touch_bit()  local
266 	mutex_lock(&pdev->access_lock);  in ds2482_w1_touch_bit()
269 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_touch_bit()
270 	if (pdev->w1_count > 1)  in ds2482_w1_touch_bit()
271 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_touch_bit()
274 	if (!ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_SINGLE_BIT,  in ds2482_w1_touch_bit()
276 		status = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_touch_bit()
278 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_touch_bit()
295 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_triplet()  local
298 	mutex_lock(&pdev->access_lock);  in ds2482_w1_triplet()
301 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_triplet()
302 	if (pdev->w1_count > 1)  in ds2482_w1_triplet()
303 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_triplet()
306 	if (!ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_TRIPLET,  in ds2482_w1_triplet()
308 		status = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_triplet()
310 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_triplet()
325 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_write_byte()  local
327 	mutex_lock(&pdev->access_lock);  in ds2482_w1_write_byte()
330 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_write_byte()
331 	if (pdev->w1_count > 1)  in ds2482_w1_write_byte()
332 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_write_byte()
335 	ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);  in ds2482_w1_write_byte()
337 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_write_byte()
349 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_read_byte()  local
352 	mutex_lock(&pdev->access_lock);  in ds2482_w1_read_byte()
355 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_read_byte()
356 	if (pdev->w1_count > 1)  in ds2482_w1_read_byte()
357 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_read_byte()
360 	ds2482_send_cmd(pdev, DS2482_CMD_1WIRE_READ_BYTE);  in ds2482_w1_read_byte()
363 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_read_byte()
366 	ds2482_select_register(pdev, DS2482_PTR_CODE_DATA);  in ds2482_w1_read_byte()
369 	result = i2c_smbus_read_byte(pdev->client);  in ds2482_w1_read_byte()
371 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_read_byte()
386 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_reset_bus()  local
390 	mutex_lock(&pdev->access_lock);  in ds2482_w1_reset_bus()
393 	ds2482_wait_1wire_idle(pdev);  in ds2482_w1_reset_bus()
394 	if (pdev->w1_count > 1)  in ds2482_w1_reset_bus()
395 		ds2482_set_channel(pdev, pchan->channel);  in ds2482_w1_reset_bus()
398 	err = ds2482_send_cmd(pdev, DS2482_CMD_1WIRE_RESET);  in ds2482_w1_reset_bus()
401 		err = ds2482_wait_1wire_idle(pdev);  in ds2482_w1_reset_bus()
406 			ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG,  in ds2482_w1_reset_bus()
410 	mutex_unlock(&pdev->access_lock);  in ds2482_w1_reset_bus()
418 	struct ds2482_data    *pdev = pchan->pdev;  in ds2482_w1_set_pullup()  local
430 		ds2482_wait_1wire_idle(pdev);  in ds2482_w1_set_pullup()
432 		retval = ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG,  in ds2482_w1_set_pullup()
435 		ds2482_wait_1wire_idle(pdev);  in ds2482_w1_set_pullup()
493 		data->w1_ch[idx].pdev = data;  in ds2482_probe()
507 			data->w1_ch[idx].pdev = NULL;  in ds2482_probe()
516 		if (data->w1_ch[idx].pdev != NULL)  in ds2482_probe()
532 		if (data->w1_ch[idx].pdev != NULL)  in ds2482_remove()