2 * drivers/media/radio/si4713-i2c.c
4 * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
6 * Copyright (c) 2009 Nokia Corporation
7 * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/completion.h>
25 #include <linux/delay.h>
26 #include <linux/err.h>
27 #include <linux/interrupt.h>
28 #include <linux/i2c.h>
29 #include <linux/slab.h>
30 #include <linux/gpio.h>
31 #include <linux/module.h>
32 #include <media/v4l2-device.h>
33 #include <media/v4l2-ioctl.h>
34 #include <media/v4l2-common.h>
38 /* module parameters */
40 module_param(debug, int, S_IRUGO | S_IWUSR);
41 MODULE_PARM_DESC(debug, "Debug level (0 - 2)");
43 MODULE_LICENSE("GPL");
44 MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>");
45 MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter");
46 MODULE_VERSION("0.0.1");
48 #define DEFAULT_RDS_PI 0x00
49 #define DEFAULT_RDS_PTY 0x00
50 #define DEFAULT_RDS_DEVIATION 0x00C8
51 #define DEFAULT_RDS_PS_REPEAT_COUNT 0x0003
52 #define DEFAULT_LIMITER_RTIME 0x1392
53 #define DEFAULT_LIMITER_DEV 0x102CA
54 #define DEFAULT_PILOT_FREQUENCY 0x4A38
55 #define DEFAULT_PILOT_DEVIATION 0x1A5E
56 #define DEFAULT_ACOMP_ATIME 0x0000
57 #define DEFAULT_ACOMP_RTIME 0xF4240L
58 #define DEFAULT_ACOMP_GAIN 0x0F
59 #define DEFAULT_ACOMP_THRESHOLD (-0x28)
60 #define DEFAULT_MUTE 0x01
61 #define DEFAULT_POWER_LEVEL 88
62 #define DEFAULT_FREQUENCY 8800
63 #define DEFAULT_PREEMPHASIS FMPE_EU
64 #define DEFAULT_TUNE_RNL 0xFF
66 #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd)
68 /* frequency domain transformation (using times 10 to avoid floats) */
69 #define FREQDEV_UNIT 100000
70 #define FREQV4L2_MULTI 625
71 #define si4713_to_v4l2(f) ((f * FREQDEV_UNIT) / FREQV4L2_MULTI)
72 #define v4l2_to_si4713(f) ((f * FREQV4L2_MULTI) / FREQDEV_UNIT)
73 #define FREQ_RANGE_LOW 7600
74 #define FREQ_RANGE_HIGH 10800
79 #define RDS_BLOCK_CLEAR 0x03
80 #define RDS_BLOCK_LOAD 0x04
81 #define RDS_RADIOTEXT_2A 0x20
82 #define RDS_RADIOTEXT_BLK_SIZE 4
83 #define RDS_RADIOTEXT_INDEX_MAX 0x0F
84 #define RDS_CARRIAGE_RETURN 0x0D
86 #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0))
88 #define get_status_bit(p, b, m) (((p) & (m)) >> (b))
89 #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b)))
91 #define ATTACK_TIME_UNIT 500
93 #define POWER_OFF 0x00
96 #define msb(x) ((u8)((u16) x >> 8))
97 #define lsb(x) ((u8)((u16) x & 0x00FF))
98 #define compose_u16(msb, lsb) (((u16)msb << 8) | lsb)
99 #define check_command_failed(status) (!(status & SI4713_CTS) || \
100 (status & SI4713_ERR))
101 /* mute definition */
102 #define set_mute(p) ((p & 1) | ((p & 1) << 1));
105 #define DBG_BUFFER(device, message, buffer, size) \
108 char str[(size)*5]; \
109 for (i = 0; i < size; i++) \
110 sprintf(str + i * 5, " 0x%02x", buffer[i]); \
111 v4l2_dbg(2, debug, device, "%s:%s\n", message, str); \
114 #define DBG_BUFFER(device, message, buffer, size)
118 * Values for limiter release time (sorted by second column)
122 static long limiter_times[] = {
146 * Values for audio compression release time (sorted by second column)
150 static unsigned long acomp_rtimes[] = {
159 * Values for preemphasis (sorted by second column)
163 static unsigned long preemphasis_values[] = {
164 FMPE_DISABLED, V4L2_PREEMPHASIS_DISABLED,
165 FMPE_EU, V4L2_PREEMPHASIS_50_uS,
166 FMPE_USA, V4L2_PREEMPHASIS_75_uS,
169 static int usecs_to_dev(unsigned long usecs, unsigned long const array[],
175 for (i = 0; i < size / 2; i++)
176 if (array[(i * 2) + 1] >= usecs) {
184 /* si4713_handler: IRQ handler, just complete work */
185 static irqreturn_t si4713_handler(int irq, void *dev)
187 struct si4713_device *sdev = dev;
189 v4l2_dbg(2, debug, &sdev->sd,
190 "%s: sending signal to completion work.\n", __func__);
191 complete(&sdev->work);
197 * si4713_send_command - sends a command to si4713 and waits its response
198 * @sdev: si4713_device structure for the device we are communicating
199 * @command: command id
200 * @args: command arguments we are sending (up to 7)
201 * @argn: actual size of @args
202 * @response: buffer to place the expected response from the device (up to 15)
203 * @respn: actual size of @response
204 * @usecs: amount of time to wait before reading the response (in usecs)
206 static int si4713_send_command(struct si4713_device *sdev, const u8 command,
207 const u8 args[], const int argn,
208 u8 response[], const int respn, const int usecs)
210 struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
211 unsigned long until_jiffies;
212 u8 data1[MAX_ARGS + 1];
215 if (!client->adapter)
218 /* First send the command and its arguments */
220 memcpy(data1 + 1, args, argn);
221 DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1);
223 err = i2c_master_send(client, data1, argn + 1);
224 if (err != argn + 1) {
225 v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n",
227 return err < 0 ? err : -EIO;
230 until_jiffies = jiffies + usecs_to_jiffies(usecs) + 1;
232 /* Wait response from interrupt */
234 if (!wait_for_completion_timeout(&sdev->work,
235 usecs_to_jiffies(usecs) + 1))
237 "(%s) Device took too much time to answer.\n",
242 err = i2c_master_recv(client, response, respn);
245 "Error %d while reading response for command 0x%02x\n",
247 return err < 0 ? err : -EIO;
250 DBG_BUFFER(&sdev->sd, "Response", response, respn);
251 if (!check_command_failed(response[0]))
257 usleep_range(usecs, 1000);
259 usleep_range(1000, 2000);
260 } while (time_is_after_jiffies(until_jiffies));
266 * si4713_read_property - reads a si4713 property
267 * @sdev: si4713_device structure for the device we are communicating
268 * @prop: property identification number
269 * @pv: property value to be returned on success
271 static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv)
274 u8 val[SI4713_GET_PROP_NRESP];
277 * .Second byte = property's MSB
278 * .Third byte = property's LSB
280 const u8 args[SI4713_GET_PROP_NARGS] = {
286 err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY,
287 args, ARRAY_SIZE(args), val,
288 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
293 *pv = compose_u16(val[2], val[3]);
295 v4l2_dbg(1, debug, &sdev->sd,
296 "%s: property=0x%02x value=0x%02x status=0x%02x\n",
297 __func__, prop, *pv, val[0]);
303 * si4713_write_property - modifies a si4713 property
304 * @sdev: si4713_device structure for the device we are communicating
305 * @prop: property identification number
306 * @val: new value for that property
308 static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val)
311 u8 resp[SI4713_SET_PROP_NRESP];
314 * .Second byte = property's MSB
315 * .Third byte = property's LSB
316 * .Fourth byte = value's MSB
317 * .Fifth byte = value's LSB
319 const u8 args[SI4713_SET_PROP_NARGS] = {
327 rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY,
328 args, ARRAY_SIZE(args),
329 resp, ARRAY_SIZE(resp),
335 v4l2_dbg(1, debug, &sdev->sd,
336 "%s: property=0x%02x value=0x%02x status=0x%02x\n",
337 __func__, prop, val, resp[0]);
340 * As there is no command response for SET_PROPERTY,
341 * wait Tcomp time to finish before proceed, in order
342 * to have property properly set.
344 msleep(TIMEOUT_SET_PROPERTY);
350 * si4713_powerup - Powers the device up
351 * @sdev: si4713_device structure for the device we are communicating
353 static int si4713_powerup(struct si4713_device *sdev)
355 struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
357 u8 resp[SI4713_PWUP_NRESP];
359 * .First byte = Enabled interrupts and boot function
360 * .Second byte = Input operation mode
362 u8 args[SI4713_PWUP_NARGS] = {
363 SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX,
364 SI4713_PWUP_OPMOD_ANALOG,
367 if (sdev->power_state)
371 err = regulator_enable(sdev->vdd);
373 v4l2_err(&sdev->sd, "Failed to enable vdd: %d\n", err);
379 err = regulator_enable(sdev->vio);
381 v4l2_err(&sdev->sd, "Failed to enable vio: %d\n", err);
386 if (sdev->gpio_reset) {
388 gpiod_set_value(sdev->gpio_reset, 1);
392 args[0] |= SI4713_PWUP_CTSIEN;
394 err = si4713_send_command(sdev, SI4713_CMD_POWER_UP,
395 args, ARRAY_SIZE(args),
396 resp, ARRAY_SIZE(resp),
400 v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n",
402 v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n");
403 sdev->power_state = POWER_ON;
406 err = si4713_write_property(sdev, SI4713_GPO_IEN,
407 SI4713_STC_INT | SI4713_CTS);
410 gpiod_set_value(sdev->gpio_reset, 0);
414 err = regulator_disable(sdev->vdd);
416 v4l2_err(&sdev->sd, "Failed to disable vdd: %d\n", err);
420 err = regulator_disable(sdev->vio);
422 v4l2_err(&sdev->sd, "Failed to disable vio: %d\n", err);
429 * si4713_powerdown - Powers the device down
430 * @sdev: si4713_device structure for the device we are communicating
432 static int si4713_powerdown(struct si4713_device *sdev)
435 u8 resp[SI4713_PWDN_NRESP];
437 if (!sdev->power_state)
440 err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN,
442 resp, ARRAY_SIZE(resp),
446 v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n",
448 v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n");
449 if (sdev->gpio_reset)
450 gpiod_set_value(sdev->gpio_reset, 0);
453 err = regulator_disable(sdev->vdd);
456 "Failed to disable vdd: %d\n", err);
461 err = regulator_disable(sdev->vio);
464 "Failed to disable vio: %d\n", err);
467 sdev->power_state = POWER_OFF;
474 * si4713_checkrev - Checks if we are treating a device with the correct rev.
475 * @sdev: si4713_device structure for the device we are communicating
477 static int si4713_checkrev(struct si4713_device *sdev)
479 struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
481 u8 resp[SI4713_GETREV_NRESP];
483 rval = si4713_send_command(sdev, SI4713_CMD_GET_REV,
485 resp, ARRAY_SIZE(resp),
491 if (resp[1] == SI4713_PRODUCT_NUMBER) {
492 v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n",
493 client->addr << 1, client->adapter->name);
495 v4l2_err(&sdev->sd, "Invalid product number 0x%X\n", resp[1]);
502 * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful
503 * for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS
504 * @sdev: si4713_device structure for the device we are communicating
505 * @usecs: timeout to wait for STC interrupt signal
507 static int si4713_wait_stc(struct si4713_device *sdev, const int usecs)
509 struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
510 u8 resp[SI4713_GET_STATUS_NRESP];
511 unsigned long start_jiffies = jiffies;
515 !wait_for_completion_timeout(&sdev->work, usecs_to_jiffies(usecs) + 1))
517 "(%s) Device took too much time to answer.\n", __func__);
520 /* Clear status bits */
521 err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS,
523 resp, ARRAY_SIZE(resp),
525 /* The USB device returns errors when it waits for the
526 * STC bit to be set. Hence polling */
528 v4l2_dbg(1, debug, &sdev->sd,
529 "%s: status bits: 0x%02x\n", __func__, resp[0]);
531 if (resp[0] & SI4713_STC_INT)
534 if (jiffies_to_usecs(jiffies - start_jiffies) > usecs)
535 return err < 0 ? err : -EIO;
536 /* We sleep here for 3-4 ms in order to avoid flooding the device
537 * with USB requests. The si4713 USB driver was developed
538 * by reverse engineering the Windows USB driver. The windows
539 * driver also has a ~2.5 ms delay between responses. */
540 usleep_range(3000, 4000);
545 * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning
546 * frequency between 76 and 108 MHz in 10 kHz units and
548 * @sdev: si4713_device structure for the device we are communicating
549 * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
551 static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency)
554 u8 val[SI4713_TXFREQ_NRESP];
557 * .Second byte = frequency's MSB
558 * .Third byte = frequency's LSB
560 const u8 args[SI4713_TXFREQ_NARGS] = {
566 err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ,
567 args, ARRAY_SIZE(args), val,
568 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
573 v4l2_dbg(1, debug, &sdev->sd,
574 "%s: frequency=0x%02x status=0x%02x\n", __func__,
577 err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
581 return compose_u16(args[1], args[2]);
585 * si4713_tx_tune_power - Sets the RF voltage level between 88 and 120 dBuV in
586 * 1 dB units. A value of 0x00 indicates off. The command
587 * also sets the antenna tuning capacitance. A value of 0
588 * indicates autotuning, and a value of 1 - 191 indicates
589 * a manual override, which results in a tuning
590 * capacitance of 0.25 pF x @antcap.
591 * @sdev: si4713_device structure for the device we are communicating
592 * @power: tuning power (88 - 120 dBuV, unit/step 1 dB)
593 * @antcap: value of antenna tuning capacitor (0 - 191)
595 static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power,
599 u8 val[SI4713_TXPWR_NRESP];
603 * .Third byte = power
604 * .Fourth byte = antcap
606 u8 args[SI4713_TXPWR_NARGS] = {
613 /* Map power values 1-87 to MIN_POWER (88) */
614 if (power > 0 && power < SI4713_MIN_POWER)
615 args[2] = power = SI4713_MIN_POWER;
617 err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER,
618 args, ARRAY_SIZE(args), val,
619 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
624 v4l2_dbg(1, debug, &sdev->sd,
625 "%s: power=0x%02x antcap=0x%02x status=0x%02x\n",
626 __func__, power, antcap, val[0]);
628 return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER);
632 * si4713_tx_tune_measure - Enters receive mode and measures the received noise
633 * level in units of dBuV on the selected frequency.
634 * The Frequency must be between 76 and 108 MHz in 10 kHz
635 * units and steps of 50 kHz. The command also sets the
636 * antenna tuning capacitance. A value of 0 means
637 * autotuning, and a value of 1 to 191 indicates manual
639 * @sdev: si4713_device structure for the device we are communicating
640 * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
641 * @antcap: value of antenna tuning capacitor (0 - 191)
643 static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency,
647 u8 val[SI4713_TXMEA_NRESP];
650 * .Second byte = frequency's MSB
651 * .Third byte = frequency's LSB
652 * .Fourth byte = antcap
654 const u8 args[SI4713_TXMEA_NARGS] = {
661 sdev->tune_rnl = DEFAULT_TUNE_RNL;
663 if (antcap > SI4713_MAX_ANTCAP)
666 err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE,
667 args, ARRAY_SIZE(args), val,
668 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
673 v4l2_dbg(1, debug, &sdev->sd,
674 "%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n",
675 __func__, frequency, antcap, val[0]);
677 return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
681 * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or
682 * tx_tune_power commands. This command return the current
683 * frequency, output voltage in dBuV, the antenna tunning
684 * capacitance value and the received noise level. The
685 * command also clears the stcint interrupt bit when the
686 * first bit of its arguments is high.
687 * @sdev: si4713_device structure for the device we are communicating
688 * @intack: 0x01 to clear the seek/tune complete interrupt status indicator.
689 * @frequency: returned frequency
690 * @power: returned power
691 * @antcap: returned antenna capacitance
692 * @noise: returned noise level
694 static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack,
695 u16 *frequency, u8 *power,
696 u8 *antcap, u8 *noise)
699 u8 val[SI4713_TXSTATUS_NRESP];
701 * .First byte = intack bit
703 const u8 args[SI4713_TXSTATUS_NARGS] = {
704 intack & SI4713_INTACK_MASK,
707 err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS,
708 args, ARRAY_SIZE(args), val,
709 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
712 v4l2_dbg(1, debug, &sdev->sd,
713 "%s: status=0x%02x\n", __func__, val[0]);
714 *frequency = compose_u16(val[2], val[3]);
715 sdev->frequency = *frequency;
719 v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz "
720 "(power %d, antcap %d, rnl %d)\n", __func__,
721 *frequency, *power, *antcap, *noise);
728 * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer.
729 * @sdev: si4713_device structure for the device we are communicating
730 * @mode: the buffer operation mode.
734 * @cbleft: returns the number of available circular buffer blocks minus the
735 * number of used circular buffer blocks.
737 static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb,
738 u16 rdsc, u16 rdsd, s8 *cbleft)
741 u8 val[SI4713_RDSBUFF_NRESP];
743 const u8 args[SI4713_RDSBUFF_NARGS] = {
744 mode & SI4713_RDSBUFF_MODE_MASK,
753 err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF,
754 args, ARRAY_SIZE(args), val,
755 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
758 v4l2_dbg(1, debug, &sdev->sd,
759 "%s: status=0x%02x\n", __func__, val[0]);
760 *cbleft = (s8)val[2] - val[3];
761 v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts"
762 " 0x%02x cb avail: %d cb used %d fifo avail"
763 " %d fifo used %d\n", __func__, val[1],
764 val[2], val[3], val[4], val[5]);
771 * si4713_tx_rds_ps - Loads the program service buffer.
772 * @sdev: si4713_device structure for the device we are communicating
773 * @psid: program service id to be loaded.
774 * @pschar: assumed 4 size char array to be loaded into the program service
776 static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid,
777 unsigned char *pschar)
780 u8 val[SI4713_RDSPS_NRESP];
782 const u8 args[SI4713_RDSPS_NARGS] = {
783 psid & SI4713_RDSPS_PSID_MASK,
790 err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS,
791 args, ARRAY_SIZE(args), val,
792 ARRAY_SIZE(val), DEFAULT_TIMEOUT);
797 v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]);
802 static int si4713_set_power_state(struct si4713_device *sdev, u8 value)
805 return si4713_powerup(sdev);
806 return si4713_powerdown(sdev);
809 static int si4713_set_mute(struct si4713_device *sdev, u16 mute)
813 mute = set_mute(mute);
815 if (sdev->power_state)
816 rval = si4713_write_property(sdev,
817 SI4713_TX_LINE_INPUT_MUTE, mute);
822 static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name)
827 /* We want to clear the whole thing */
828 if (!strlen(ps_name))
829 memset(ps_name, 0, MAX_RDS_PS_NAME + 1);
831 if (sdev->power_state) {
832 /* Write the new ps name and clear the padding */
833 for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) {
834 rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)),
840 /* Setup the size to be sent */
842 len = strlen(ps_name) - 1;
846 rval = si4713_write_property(sdev,
847 SI4713_TX_RDS_PS_MESSAGE_COUNT,
848 rds_ps_nblocks(len));
852 rval = si4713_write_property(sdev,
853 SI4713_TX_RDS_PS_REPEAT_COUNT,
854 DEFAULT_RDS_PS_REPEAT_COUNT * 2);
862 static int si4713_set_rds_radio_text(struct si4713_device *sdev, const char *rt)
864 static const char cr[RDS_RADIOTEXT_BLK_SIZE] = { RDS_CARRIAGE_RETURN, 0 };
867 u8 b_index = 0, cr_inserted = 0;
870 if (!sdev->power_state)
873 rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left);
881 /* RDS spec says that if the last block isn't used,
882 * then apply a carriage return
884 if (t_index < (RDS_RADIOTEXT_INDEX_MAX * RDS_RADIOTEXT_BLK_SIZE)) {
885 for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) {
886 if (!rt[t_index + i] ||
887 rt[t_index + i] == RDS_CARRIAGE_RETURN) {
895 rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD,
896 compose_u16(RDS_RADIOTEXT_2A, b_index++),
897 compose_u16(rt[t_index], rt[t_index + 1]),
898 compose_u16(rt[t_index + 2], rt[t_index + 3]),
903 t_index += RDS_RADIOTEXT_BLK_SIZE;
913 * si4713_update_tune_status - update properties from tx_tune_status
914 * command. Must be called with sdev->mutex held.
915 * @sdev: si4713_device structure for the device we are communicating
917 static int si4713_update_tune_status(struct si4713_device *sdev)
921 u8 p = 0, a = 0, n = 0;
923 rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
928 /* TODO: check that power_level and antenna_capacitor really are not
929 changed by the hardware. If they are, then these controls should become
931 sdev->power_level = p;
932 sdev->antenna_capacitor = a;*/
939 static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id,
940 s32 *bit, s32 *mask, u16 *property, int *mul,
941 unsigned long **table, int *size)
946 /* FM_TX class controls */
947 case V4L2_CID_RDS_TX_PI:
948 *property = SI4713_TX_RDS_PI;
951 case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
952 *property = SI4713_TX_ACOMP_THRESHOLD;
955 case V4L2_CID_AUDIO_COMPRESSION_GAIN:
956 *property = SI4713_TX_ACOMP_GAIN;
959 case V4L2_CID_PILOT_TONE_FREQUENCY:
960 *property = SI4713_TX_PILOT_FREQUENCY;
963 case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
964 *property = SI4713_TX_ACOMP_ATTACK_TIME;
965 *mul = ATTACK_TIME_UNIT;
967 case V4L2_CID_PILOT_TONE_DEVIATION:
968 *property = SI4713_TX_PILOT_DEVIATION;
971 case V4L2_CID_AUDIO_LIMITER_DEVIATION:
972 *property = SI4713_TX_AUDIO_DEVIATION;
975 case V4L2_CID_RDS_TX_DEVIATION:
976 *property = SI4713_TX_RDS_DEVIATION;
980 case V4L2_CID_RDS_TX_PTY:
981 *property = SI4713_TX_RDS_PS_MISC;
985 case V4L2_CID_RDS_TX_DYNAMIC_PTY:
986 *property = SI4713_TX_RDS_PS_MISC;
990 case V4L2_CID_RDS_TX_COMPRESSED:
991 *property = SI4713_TX_RDS_PS_MISC;
995 case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD:
996 *property = SI4713_TX_RDS_PS_MISC;
1000 case V4L2_CID_RDS_TX_MONO_STEREO:
1001 *property = SI4713_TX_RDS_PS_MISC;
1005 case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM:
1006 *property = SI4713_TX_RDS_PS_MISC;
1010 case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT:
1011 *property = SI4713_TX_RDS_PS_MISC;
1015 case V4L2_CID_RDS_TX_MUSIC_SPEECH:
1016 *property = SI4713_TX_RDS_PS_MISC;
1020 case V4L2_CID_AUDIO_LIMITER_ENABLED:
1021 *property = SI4713_TX_ACOMP_ENABLE;
1025 case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
1026 *property = SI4713_TX_ACOMP_ENABLE;
1030 case V4L2_CID_PILOT_TONE_ENABLED:
1031 *property = SI4713_TX_COMPONENT_ENABLE;
1036 case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
1037 *property = SI4713_TX_LIMITER_RELEASE_TIME;
1038 *table = limiter_times;
1039 *size = ARRAY_SIZE(limiter_times);
1041 case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
1042 *property = SI4713_TX_ACOMP_RELEASE_TIME;
1043 *table = acomp_rtimes;
1044 *size = ARRAY_SIZE(acomp_rtimes);
1046 case V4L2_CID_TUNE_PREEMPHASIS:
1047 *property = SI4713_TX_PREEMPHASIS;
1048 *table = preemphasis_values;
1049 *size = ARRAY_SIZE(preemphasis_values);
1060 static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f);
1061 static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *);
1063 * si4713_setup - Sets the device up with current configuration.
1064 * @sdev: si4713_device structure for the device we are communicating
1066 static int si4713_setup(struct si4713_device *sdev)
1068 struct v4l2_frequency f;
1069 struct v4l2_modulator vm;
1072 /* Device procedure needs to set frequency first */
1074 f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY;
1075 f.frequency = si4713_to_v4l2(f.frequency);
1076 rval = si4713_s_frequency(&sdev->sd, &f);
1080 vm.txsubchans = V4L2_TUNER_SUB_STEREO;
1082 vm.txsubchans = V4L2_TUNER_SUB_MONO;
1083 if (sdev->rds_enabled)
1084 vm.txsubchans |= V4L2_TUNER_SUB_RDS;
1085 si4713_s_modulator(&sdev->sd, &vm);
1091 * si4713_initialize - Sets the device up with default configuration.
1092 * @sdev: si4713_device structure for the device we are communicating
1094 static int si4713_initialize(struct si4713_device *sdev)
1098 rval = si4713_set_power_state(sdev, POWER_ON);
1102 rval = si4713_checkrev(sdev);
1106 rval = si4713_set_power_state(sdev, POWER_OFF);
1110 sdev->frequency = DEFAULT_FREQUENCY;
1112 sdev->tune_rnl = DEFAULT_TUNE_RNL;
1116 /* si4713_s_ctrl - set the value of a control */
1117 static int si4713_s_ctrl(struct v4l2_ctrl *ctrl)
1119 struct si4713_device *sdev =
1120 container_of(ctrl->handler, struct si4713_device, ctrl_handler);
1122 s32 bit = 0, mask = 0;
1125 unsigned long *table = NULL;
1131 if (ctrl->id != V4L2_CID_AUDIO_MUTE)
1135 ret = si4713_set_mute(sdev, ctrl->val);
1137 ret = si4713_set_power_state(sdev, POWER_DOWN);
1140 ret = si4713_set_power_state(sdev, POWER_UP);
1142 ret = si4713_set_mute(sdev, ctrl->val);
1144 ret = si4713_setup(sdev);
1150 if (!sdev->power_state)
1153 for (c = 1; !ret && c < ctrl->ncontrols; c++) {
1154 ctrl = ctrl->cluster[c];
1156 if (!force && !ctrl->is_new)
1160 case V4L2_CID_RDS_TX_PS_NAME:
1161 ret = si4713_set_rds_ps_name(sdev, ctrl->p_new.p_char);
1164 case V4L2_CID_RDS_TX_RADIO_TEXT:
1165 ret = si4713_set_rds_radio_text(sdev, ctrl->p_new.p_char);
1168 case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
1169 /* don't handle this control if we force setting all
1170 * controls since in that case it will be handled by
1171 * V4L2_CID_TUNE_POWER_LEVEL. */
1175 case V4L2_CID_TUNE_POWER_LEVEL:
1176 ret = si4713_tx_tune_power(sdev,
1177 sdev->tune_pwr_level->val, sdev->tune_ant_cap->val);
1179 /* Make sure we don't set this twice */
1180 sdev->tune_ant_cap->is_new = false;
1181 sdev->tune_pwr_level->is_new = false;
1185 case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE:
1186 case V4L2_CID_RDS_TX_ALT_FREQS:
1187 if (sdev->rds_alt_freqs_enable->val) {
1188 val = sdev->rds_alt_freqs->p_new.p_u32[0];
1189 val = val / 100 - 876 + 0xe101;
1193 ret = si4713_write_property(sdev, SI4713_TX_RDS_PS_AF, val);
1197 ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit,
1198 &mask, &property, &mul, &table, &size);
1206 ret = usecs_to_dev(val, table, size);
1214 ret = si4713_read_property(sdev, property, &val);
1217 val = set_bits(val, ctrl->val, bit, mask);
1220 ret = si4713_write_property(sdev, property, val);
1232 /* si4713_ioctl - deal with private ioctls (only rnl for now) */
1233 static long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1235 struct si4713_device *sdev = to_si4713_device(sd);
1236 struct si4713_rnl *rnl = arg;
1244 case SI4713_IOC_MEASURE_RNL:
1245 frequency = v4l2_to_si4713(rnl->frequency);
1247 if (sdev->power_state) {
1248 /* Set desired measurement frequency */
1249 rval = si4713_tx_tune_measure(sdev, frequency, 0);
1252 /* get results from tune status */
1253 rval = si4713_update_tune_status(sdev);
1257 rnl->rnl = sdev->tune_rnl;
1262 rval = -ENOIOCTLCMD;
1268 /* si4713_g_modulator - get modulator attributes */
1269 static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
1271 struct si4713_device *sdev = to_si4713_device(sd);
1280 strncpy(vm->name, "FM Modulator", 32);
1281 vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW |
1282 V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS;
1284 /* Report current frequency range limits */
1285 vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW);
1286 vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH);
1288 if (sdev->power_state) {
1291 rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE,
1296 sdev->stereo = get_status_bit(comp_en, 1, 1 << 1);
1299 /* Report current audio mode: mono or stereo */
1301 vm->txsubchans = V4L2_TUNER_SUB_STEREO;
1303 vm->txsubchans = V4L2_TUNER_SUB_MONO;
1305 /* Report rds feature status */
1306 if (sdev->rds_enabled)
1307 vm->txsubchans |= V4L2_TUNER_SUB_RDS;
1309 vm->txsubchans &= ~V4L2_TUNER_SUB_RDS;
1314 /* si4713_s_modulator - set modulator attributes */
1315 static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *vm)
1317 struct si4713_device *sdev = to_si4713_device(sd);
1328 /* Set audio mode: mono or stereo */
1329 if (vm->txsubchans & V4L2_TUNER_SUB_STEREO)
1331 else if (vm->txsubchans & V4L2_TUNER_SUB_MONO)
1336 rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS);
1338 if (sdev->power_state) {
1339 rval = si4713_read_property(sdev,
1340 SI4713_TX_COMPONENT_ENABLE, &p);
1344 p = set_bits(p, stereo, 1, 1 << 1);
1345 p = set_bits(p, rds, 2, 1 << 2);
1347 rval = si4713_write_property(sdev,
1348 SI4713_TX_COMPONENT_ENABLE, p);
1353 sdev->stereo = stereo;
1354 sdev->rds_enabled = rds;
1359 /* si4713_g_frequency - get tuner or modulator radio frequency */
1360 static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
1362 struct si4713_device *sdev = to_si4713_device(sd);
1368 if (sdev->power_state) {
1372 rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
1376 sdev->frequency = freq;
1379 f->frequency = si4713_to_v4l2(sdev->frequency);
1384 /* si4713_s_frequency - set tuner or modulator radio frequency */
1385 static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f)
1387 struct si4713_device *sdev = to_si4713_device(sd);
1389 u16 frequency = v4l2_to_si4713(f->frequency);
1394 /* Check frequency range */
1395 frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH);
1397 if (sdev->power_state) {
1398 rval = si4713_tx_tune_freq(sdev, frequency);
1404 sdev->frequency = frequency;
1409 static const struct v4l2_ctrl_ops si4713_ctrl_ops = {
1410 .s_ctrl = si4713_s_ctrl,
1413 static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = {
1414 .ioctl = si4713_ioctl,
1417 static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = {
1418 .g_frequency = si4713_g_frequency,
1419 .s_frequency = si4713_s_frequency,
1420 .g_modulator = si4713_g_modulator,
1421 .s_modulator = si4713_s_modulator,
1424 static const struct v4l2_subdev_ops si4713_subdev_ops = {
1425 .core = &si4713_subdev_core_ops,
1426 .tuner = &si4713_subdev_tuner_ops,
1429 static const struct v4l2_ctrl_config si4713_alt_freqs_ctrl = {
1430 .id = V4L2_CID_RDS_TX_ALT_FREQS,
1431 .type = V4L2_CTRL_TYPE_U32,
1437 .elem_size = sizeof(u32),
1441 * I2C driver interface
1443 /* si4713_probe - probe for the device */
1444 static int si4713_probe(struct i2c_client *client,
1445 const struct i2c_device_id *id)
1447 struct si4713_device *sdev;
1448 struct v4l2_ctrl_handler *hdl;
1449 struct si4713_platform_data *pdata = client->dev.platform_data;
1450 struct device_node *np = client->dev.of_node;
1451 struct radio_si4713_platform_data si4713_pdev_pdata;
1452 struct platform_device *si4713_pdev;
1455 sdev = devm_kzalloc(&client->dev, sizeof(*sdev), GFP_KERNEL);
1457 dev_err(&client->dev, "Failed to alloc video device.\n");
1462 sdev->gpio_reset = devm_gpiod_get_optional(&client->dev, "reset",
1464 if (IS_ERR(sdev->gpio_reset)) {
1465 rval = PTR_ERR(sdev->gpio_reset);
1466 dev_err(&client->dev, "Failed to request gpio: %d\n", rval);
1470 sdev->vdd = devm_regulator_get_optional(&client->dev, "vdd");
1471 if (IS_ERR(sdev->vdd)) {
1472 rval = PTR_ERR(sdev->vdd);
1473 if (rval == -EPROBE_DEFER)
1476 dev_dbg(&client->dev, "no vdd regulator found: %d\n", rval);
1480 sdev->vio = devm_regulator_get_optional(&client->dev, "vio");
1481 if (IS_ERR(sdev->vio)) {
1482 rval = PTR_ERR(sdev->vio);
1483 if (rval == -EPROBE_DEFER)
1486 dev_dbg(&client->dev, "no vio regulator found: %d\n", rval);
1490 v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops);
1492 init_completion(&sdev->work);
1494 hdl = &sdev->ctrl_handler;
1495 v4l2_ctrl_handler_init(hdl, 20);
1496 sdev->mute = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1497 V4L2_CID_AUDIO_MUTE, 0, 1, 1, DEFAULT_MUTE);
1499 sdev->rds_pi = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1500 V4L2_CID_RDS_TX_PI, 0, 0xffff, 1, DEFAULT_RDS_PI);
1501 sdev->rds_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1502 V4L2_CID_RDS_TX_PTY, 0, 31, 1, DEFAULT_RDS_PTY);
1503 sdev->rds_compressed = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1504 V4L2_CID_RDS_TX_COMPRESSED, 0, 1, 1, 0);
1505 sdev->rds_art_head = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1506 V4L2_CID_RDS_TX_ARTIFICIAL_HEAD, 0, 1, 1, 0);
1507 sdev->rds_stereo = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1508 V4L2_CID_RDS_TX_MONO_STEREO, 0, 1, 1, 1);
1509 sdev->rds_tp = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1510 V4L2_CID_RDS_TX_TRAFFIC_PROGRAM, 0, 1, 1, 0);
1511 sdev->rds_ta = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1512 V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT, 0, 1, 1, 0);
1513 sdev->rds_ms = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1514 V4L2_CID_RDS_TX_MUSIC_SPEECH, 0, 1, 1, 1);
1515 sdev->rds_dyn_pty = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1516 V4L2_CID_RDS_TX_DYNAMIC_PTY, 0, 1, 1, 0);
1517 sdev->rds_alt_freqs_enable = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1518 V4L2_CID_RDS_TX_ALT_FREQS_ENABLE, 0, 1, 1, 0);
1519 sdev->rds_alt_freqs = v4l2_ctrl_new_custom(hdl, &si4713_alt_freqs_ctrl, NULL);
1520 sdev->rds_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1521 V4L2_CID_RDS_TX_DEVIATION, 0, MAX_RDS_DEVIATION,
1522 10, DEFAULT_RDS_DEVIATION);
1524 * Report step as 8. From RDS spec, psname
1525 * should be 8. But there are receivers which scroll strings
1528 sdev->rds_ps_name = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1529 V4L2_CID_RDS_TX_PS_NAME, 0, MAX_RDS_PS_NAME, 8, 0);
1531 * Report step as 32 (2A block). From RDS spec,
1532 * radio text should be 32 for 2A block. But there are receivers
1533 * which scroll strings sized as 32xN. Setting default to 32.
1535 sdev->rds_radio_text = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1536 V4L2_CID_RDS_TX_RADIO_TEXT, 0, MAX_RDS_RADIO_TEXT, 32, 0);
1538 sdev->limiter_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1539 V4L2_CID_AUDIO_LIMITER_ENABLED, 0, 1, 1, 1);
1540 sdev->limiter_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1541 V4L2_CID_AUDIO_LIMITER_RELEASE_TIME, 250,
1542 MAX_LIMITER_RELEASE_TIME, 10, DEFAULT_LIMITER_RTIME);
1543 sdev->limiter_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1544 V4L2_CID_AUDIO_LIMITER_DEVIATION, 0,
1545 MAX_LIMITER_DEVIATION, 10, DEFAULT_LIMITER_DEV);
1547 sdev->compression_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1548 V4L2_CID_AUDIO_COMPRESSION_ENABLED, 0, 1, 1, 1);
1549 sdev->compression_gain = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1550 V4L2_CID_AUDIO_COMPRESSION_GAIN, 0, MAX_ACOMP_GAIN, 1,
1551 DEFAULT_ACOMP_GAIN);
1552 sdev->compression_threshold = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1553 V4L2_CID_AUDIO_COMPRESSION_THRESHOLD,
1554 MIN_ACOMP_THRESHOLD, MAX_ACOMP_THRESHOLD, 1,
1555 DEFAULT_ACOMP_THRESHOLD);
1556 sdev->compression_attack_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1557 V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME, 0,
1558 MAX_ACOMP_ATTACK_TIME, 500, DEFAULT_ACOMP_ATIME);
1559 sdev->compression_release_time = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1560 V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME, 100000,
1561 MAX_ACOMP_RELEASE_TIME, 100000, DEFAULT_ACOMP_RTIME);
1563 sdev->pilot_tone_enabled = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1564 V4L2_CID_PILOT_TONE_ENABLED, 0, 1, 1, 1);
1565 sdev->pilot_tone_deviation = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1566 V4L2_CID_PILOT_TONE_DEVIATION, 0, MAX_PILOT_DEVIATION,
1567 10, DEFAULT_PILOT_DEVIATION);
1568 sdev->pilot_tone_freq = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1569 V4L2_CID_PILOT_TONE_FREQUENCY, 0, MAX_PILOT_FREQUENCY,
1570 1, DEFAULT_PILOT_FREQUENCY);
1572 sdev->tune_preemphasis = v4l2_ctrl_new_std_menu(hdl, &si4713_ctrl_ops,
1573 V4L2_CID_TUNE_PREEMPHASIS,
1574 V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS);
1575 sdev->tune_pwr_level = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1576 V4L2_CID_TUNE_POWER_LEVEL, 0, SI4713_MAX_POWER,
1577 1, DEFAULT_POWER_LEVEL);
1578 sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops,
1579 V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, SI4713_MAX_ANTCAP,
1586 v4l2_ctrl_cluster(29, &sdev->mute);
1587 sdev->sd.ctrl_handler = hdl;
1590 rval = devm_request_irq(&client->dev, client->irq,
1591 si4713_handler, IRQF_TRIGGER_FALLING,
1592 client->name, sdev);
1594 v4l2_err(&sdev->sd, "Could not request IRQ\n");
1597 v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n");
1599 v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n");
1602 rval = si4713_initialize(sdev);
1604 v4l2_err(&sdev->sd, "Failed to probe device information.\n");
1608 if (!np && (!pdata || !pdata->is_platform_device))
1611 si4713_pdev = platform_device_alloc("radio-si4713", -1);
1617 si4713_pdev_pdata.subdev = client;
1618 rval = platform_device_add_data(si4713_pdev, &si4713_pdev_pdata,
1619 sizeof(si4713_pdev_pdata));
1623 rval = platform_device_add(si4713_pdev);
1627 sdev->pd = si4713_pdev;
1632 platform_device_put(si4713_pdev);
1633 v4l2_device_unregister_subdev(&sdev->sd);
1635 v4l2_ctrl_handler_free(hdl);
1640 /* si4713_remove - remove the device */
1641 static int si4713_remove(struct i2c_client *client)
1643 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1644 struct si4713_device *sdev = to_si4713_device(sd);
1646 platform_device_unregister(sdev->pd);
1648 if (sdev->power_state)
1649 si4713_set_power_state(sdev, POWER_DOWN);
1651 v4l2_device_unregister_subdev(sd);
1652 v4l2_ctrl_handler_free(sd->ctrl_handler);
1657 /* si4713_i2c_driver - i2c driver interface */
1658 static const struct i2c_device_id si4713_id[] = {
1662 MODULE_DEVICE_TABLE(i2c, si4713_id);
1664 static struct i2c_driver si4713_i2c_driver = {
1668 .probe = si4713_probe,
1669 .remove = si4713_remove,
1670 .id_table = si4713_id,
1673 module_i2c_driver(si4713_i2c_driver);