Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1 | /* |
| 2 | * drivers/media/radio/si4713-i2c.c |
| 3 | * |
| 4 | * Silicon Labs Si4713 FM Radio Transmitter I2C commands. |
| 5 | * |
| 6 | * Copyright (c) 2009 Nokia Corporation |
| 7 | * Contact: Eduardo Valentin <eduardo.valentin@nokia.com> |
| 8 | * |
| 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. |
| 13 | * |
| 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. |
| 18 | * |
| 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 |
| 22 | */ |
| 23 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 24 | #include <linux/completion.h> |
| 25 | #include <linux/delay.h> |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 26 | #include <linux/err.h> |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/i2c.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/slab.h> |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 30 | #include <linux/gpio.h> |
Paul Gortmaker | 7a707b8 | 2011-07-03 14:03:12 -0400 | [diff] [blame] | 31 | #include <linux/module.h> |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 32 | #include <media/v4l2-device.h> |
| 33 | #include <media/v4l2-ioctl.h> |
| 34 | #include <media/v4l2-common.h> |
| 35 | |
Dinesh Ram | 7391232 | 2013-10-15 12:24:37 -0300 | [diff] [blame] | 36 | #include "si4713.h" |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 37 | |
| 38 | /* module parameters */ |
| 39 | static int debug; |
| 40 | module_param(debug, int, S_IRUGO | S_IWUSR); |
| 41 | MODULE_PARM_DESC(debug, "Debug level (0 - 2)"); |
| 42 | |
| 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"); |
| 47 | |
| 48 | #define DEFAULT_RDS_PI 0x00 |
| 49 | #define DEFAULT_RDS_PTY 0x00 |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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 |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 54 | #define DEFAULT_PILOT_FREQUENCY 0x4A38 |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 55 | #define DEFAULT_PILOT_DEVIATION 0x1A5E |
| 56 | #define DEFAULT_ACOMP_ATIME 0x0000 |
| 57 | #define DEFAULT_ACOMP_RTIME 0xF4240L |
| 58 | #define DEFAULT_ACOMP_GAIN 0x0F |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 59 | #define DEFAULT_ACOMP_THRESHOLD (-0x28) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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 |
| 65 | |
| 66 | #define to_si4713_device(sd) container_of(sd, struct si4713_device, sd) |
| 67 | |
| 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 |
| 75 | |
| 76 | #define MAX_ARGS 7 |
| 77 | |
| 78 | #define RDS_BLOCK 8 |
| 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 |
| 85 | |
| 86 | #define rds_ps_nblocks(len) ((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0)) |
| 87 | |
| 88 | #define get_status_bit(p, b, m) (((p) & (m)) >> (b)) |
| 89 | #define set_bits(p, v, b, m) (((p) & ~(m)) | ((v) << (b))) |
| 90 | |
| 91 | #define ATTACK_TIME_UNIT 500 |
| 92 | |
| 93 | #define POWER_OFF 0x00 |
| 94 | #define POWER_ON 0x01 |
| 95 | |
| 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)); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 103 | |
| 104 | #ifdef DEBUG |
| 105 | #define DBG_BUFFER(device, message, buffer, size) \ |
| 106 | { \ |
| 107 | int i; \ |
| 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); \ |
| 112 | } |
| 113 | #else |
| 114 | #define DBG_BUFFER(device, message, buffer, size) |
| 115 | #endif |
| 116 | |
| 117 | /* |
| 118 | * Values for limiter release time (sorted by second column) |
| 119 | * device release |
| 120 | * value time (us) |
| 121 | */ |
| 122 | static long limiter_times[] = { |
| 123 | 2000, 250, |
| 124 | 1000, 500, |
| 125 | 510, 1000, |
| 126 | 255, 2000, |
| 127 | 170, 3000, |
| 128 | 127, 4020, |
| 129 | 102, 5010, |
| 130 | 85, 6020, |
| 131 | 73, 7010, |
| 132 | 64, 7990, |
| 133 | 57, 8970, |
| 134 | 51, 10030, |
| 135 | 25, 20470, |
| 136 | 17, 30110, |
| 137 | 13, 39380, |
| 138 | 10, 51190, |
| 139 | 8, 63690, |
| 140 | 7, 73140, |
| 141 | 6, 85330, |
| 142 | 5, 102390, |
| 143 | }; |
| 144 | |
| 145 | /* |
| 146 | * Values for audio compression release time (sorted by second column) |
| 147 | * device release |
| 148 | * value time (us) |
| 149 | */ |
| 150 | static unsigned long acomp_rtimes[] = { |
| 151 | 0, 100000, |
| 152 | 1, 200000, |
| 153 | 2, 350000, |
| 154 | 3, 525000, |
| 155 | 4, 1000000, |
| 156 | }; |
| 157 | |
| 158 | /* |
| 159 | * Values for preemphasis (sorted by second column) |
| 160 | * device preemphasis |
| 161 | * value value (v4l2) |
| 162 | */ |
| 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, |
| 167 | }; |
| 168 | |
| 169 | static int usecs_to_dev(unsigned long usecs, unsigned long const array[], |
| 170 | int size) |
| 171 | { |
| 172 | int i; |
| 173 | int rval = -EINVAL; |
| 174 | |
| 175 | for (i = 0; i < size / 2; i++) |
| 176 | if (array[(i * 2) + 1] >= usecs) { |
| 177 | rval = array[i * 2]; |
| 178 | break; |
| 179 | } |
| 180 | |
| 181 | return rval; |
| 182 | } |
| 183 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 184 | /* si4713_handler: IRQ handler, just complete work */ |
| 185 | static irqreturn_t si4713_handler(int irq, void *dev) |
| 186 | { |
| 187 | struct si4713_device *sdev = dev; |
| 188 | |
| 189 | v4l2_dbg(2, debug, &sdev->sd, |
| 190 | "%s: sending signal to completion work.\n", __func__); |
| 191 | complete(&sdev->work); |
| 192 | |
| 193 | return IRQ_HANDLED; |
| 194 | } |
| 195 | |
| 196 | /* |
| 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) |
| 205 | */ |
| 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) |
| 209 | { |
| 210 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 211 | unsigned long until_jiffies; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 212 | u8 data1[MAX_ARGS + 1]; |
| 213 | int err; |
| 214 | |
| 215 | if (!client->adapter) |
| 216 | return -ENODEV; |
| 217 | |
| 218 | /* First send the command and its arguments */ |
| 219 | data1[0] = command; |
| 220 | memcpy(data1 + 1, args, argn); |
| 221 | DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1); |
| 222 | |
| 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", |
| 226 | command); |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 227 | return err < 0 ? err : -EIO; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 228 | } |
| 229 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 230 | until_jiffies = jiffies + usecs_to_jiffies(usecs) + 1; |
| 231 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 232 | /* Wait response from interrupt */ |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 233 | if (client->irq) { |
| 234 | if (!wait_for_completion_timeout(&sdev->work, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 235 | usecs_to_jiffies(usecs) + 1)) |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 236 | v4l2_warn(&sdev->sd, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 237 | "(%s) Device took too much time to answer.\n", |
| 238 | __func__); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 239 | } |
| 240 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 241 | do { |
| 242 | err = i2c_master_recv(client, response, respn); |
| 243 | if (err != respn) { |
| 244 | v4l2_err(&sdev->sd, |
| 245 | "Error %d while reading response for command 0x%02x\n", |
| 246 | err, command); |
| 247 | return err < 0 ? err : -EIO; |
| 248 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 249 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 250 | DBG_BUFFER(&sdev->sd, "Response", response, respn); |
| 251 | if (!check_command_failed(response[0])) |
| 252 | return 0; |
| 253 | |
| 254 | if (client->irq) |
| 255 | return -EBUSY; |
Hans Verkuil | cb15da3 | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 256 | if (usecs <= 1000) |
| 257 | usleep_range(usecs, 1000); |
| 258 | else |
| 259 | usleep_range(1000, 2000); |
| 260 | } while (time_is_after_jiffies(until_jiffies)); |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 261 | |
| 262 | return -EBUSY; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | /* |
| 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 |
| 270 | */ |
| 271 | static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv) |
| 272 | { |
| 273 | int err; |
| 274 | u8 val[SI4713_GET_PROP_NRESP]; |
| 275 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 276 | * .First byte = 0 |
| 277 | * .Second byte = property's MSB |
| 278 | * .Third byte = property's LSB |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 279 | */ |
| 280 | const u8 args[SI4713_GET_PROP_NARGS] = { |
| 281 | 0x00, |
| 282 | msb(prop), |
| 283 | lsb(prop), |
| 284 | }; |
| 285 | |
| 286 | err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY, |
| 287 | args, ARRAY_SIZE(args), val, |
| 288 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 289 | |
| 290 | if (err < 0) |
| 291 | return err; |
| 292 | |
| 293 | *pv = compose_u16(val[2], val[3]); |
| 294 | |
| 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]); |
| 298 | |
| 299 | return err; |
| 300 | } |
| 301 | |
| 302 | /* |
| 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 |
| 307 | */ |
| 308 | static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val) |
| 309 | { |
| 310 | int rval; |
| 311 | u8 resp[SI4713_SET_PROP_NRESP]; |
| 312 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 313 | * .First byte = 0 |
| 314 | * .Second byte = property's MSB |
| 315 | * .Third byte = property's LSB |
| 316 | * .Fourth byte = value's MSB |
| 317 | * .Fifth byte = value's LSB |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 318 | */ |
| 319 | const u8 args[SI4713_SET_PROP_NARGS] = { |
| 320 | 0x00, |
| 321 | msb(prop), |
| 322 | lsb(prop), |
| 323 | msb(val), |
| 324 | lsb(val), |
| 325 | }; |
| 326 | |
| 327 | rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY, |
| 328 | args, ARRAY_SIZE(args), |
| 329 | resp, ARRAY_SIZE(resp), |
| 330 | DEFAULT_TIMEOUT); |
| 331 | |
| 332 | if (rval < 0) |
| 333 | return rval; |
| 334 | |
| 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]); |
| 338 | |
| 339 | /* |
| 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. |
| 343 | */ |
| 344 | msleep(TIMEOUT_SET_PROPERTY); |
| 345 | |
| 346 | return rval; |
| 347 | } |
| 348 | |
| 349 | /* |
| 350 | * si4713_powerup - Powers the device up |
| 351 | * @sdev: si4713_device structure for the device we are communicating |
| 352 | */ |
| 353 | static int si4713_powerup(struct si4713_device *sdev) |
| 354 | { |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 355 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 356 | int err; |
| 357 | u8 resp[SI4713_PWUP_NRESP]; |
| 358 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 359 | * .First byte = Enabled interrupts and boot function |
| 360 | * .Second byte = Input operation mode |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 361 | */ |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 362 | u8 args[SI4713_PWUP_NARGS] = { |
| 363 | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 364 | SI4713_PWUP_OPMOD_ANALOG, |
| 365 | }; |
| 366 | |
| 367 | if (sdev->power_state) |
| 368 | return 0; |
| 369 | |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 370 | if (sdev->vdd) { |
| 371 | err = regulator_enable(sdev->vdd); |
Dinesh Ram | cc6d618 | 2013-10-15 12:24:44 -0300 | [diff] [blame] | 372 | if (err) { |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 373 | v4l2_err(&sdev->sd, "Failed to enable vdd: %d\n", err); |
Dinesh Ram | cc6d618 | 2013-10-15 12:24:44 -0300 | [diff] [blame] | 374 | return err; |
| 375 | } |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 376 | } |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 377 | |
| 378 | if (sdev->vio) { |
| 379 | err = regulator_enable(sdev->vio); |
| 380 | if (err) { |
| 381 | v4l2_err(&sdev->sd, "Failed to enable vio: %d\n", err); |
| 382 | return err; |
| 383 | } |
| 384 | } |
| 385 | |
Uwe Kleine-König | b36ae85 | 2015-03-26 17:47:53 -0300 | [diff] [blame] | 386 | if (sdev->gpio_reset) { |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 387 | udelay(50); |
Sebastian Reichel | fbe14a1 | 2014-10-21 12:07:01 -0300 | [diff] [blame] | 388 | gpiod_set_value(sdev->gpio_reset, 1); |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 389 | } |
| 390 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 391 | if (client->irq) |
| 392 | args[0] |= SI4713_PWUP_CTSIEN; |
| 393 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 394 | err = si4713_send_command(sdev, SI4713_CMD_POWER_UP, |
| 395 | args, ARRAY_SIZE(args), |
| 396 | resp, ARRAY_SIZE(resp), |
| 397 | TIMEOUT_POWER_UP); |
| 398 | |
| 399 | if (!err) { |
| 400 | v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n", |
| 401 | resp[0]); |
| 402 | v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n"); |
| 403 | sdev->power_state = POWER_ON; |
| 404 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 405 | if (client->irq) |
| 406 | err = si4713_write_property(sdev, SI4713_GPO_IEN, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 407 | SI4713_STC_INT | SI4713_CTS); |
Dinesh Ram | cc6d618 | 2013-10-15 12:24:44 -0300 | [diff] [blame] | 408 | return err; |
| 409 | } |
Uwe Kleine-König | b36ae85 | 2015-03-26 17:47:53 -0300 | [diff] [blame] | 410 | gpiod_set_value(sdev->gpio_reset, 0); |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 411 | |
| 412 | |
| 413 | if (sdev->vdd) { |
| 414 | err = regulator_disable(sdev->vdd); |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 415 | if (err) |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 416 | v4l2_err(&sdev->sd, "Failed to disable vdd: %d\n", err); |
| 417 | } |
| 418 | |
| 419 | if (sdev->vio) { |
| 420 | err = regulator_disable(sdev->vio); |
| 421 | if (err) |
| 422 | v4l2_err(&sdev->sd, "Failed to disable vio: %d\n", err); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | return err; |
| 426 | } |
| 427 | |
| 428 | /* |
| 429 | * si4713_powerdown - Powers the device down |
| 430 | * @sdev: si4713_device structure for the device we are communicating |
| 431 | */ |
| 432 | static int si4713_powerdown(struct si4713_device *sdev) |
| 433 | { |
| 434 | int err; |
| 435 | u8 resp[SI4713_PWDN_NRESP]; |
| 436 | |
| 437 | if (!sdev->power_state) |
| 438 | return 0; |
| 439 | |
| 440 | err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN, |
| 441 | NULL, 0, |
| 442 | resp, ARRAY_SIZE(resp), |
| 443 | DEFAULT_TIMEOUT); |
| 444 | |
| 445 | if (!err) { |
| 446 | v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n", |
| 447 | resp[0]); |
| 448 | v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n"); |
Uwe Kleine-König | b36ae85 | 2015-03-26 17:47:53 -0300 | [diff] [blame] | 449 | if (sdev->gpio_reset) |
Sebastian Reichel | fbe14a1 | 2014-10-21 12:07:01 -0300 | [diff] [blame] | 450 | gpiod_set_value(sdev->gpio_reset, 0); |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 451 | |
| 452 | if (sdev->vdd) { |
| 453 | err = regulator_disable(sdev->vdd); |
| 454 | if (err) { |
Dinesh Ram | cc6d618 | 2013-10-15 12:24:44 -0300 | [diff] [blame] | 455 | v4l2_err(&sdev->sd, |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 456 | "Failed to disable vdd: %d\n", err); |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | if (sdev->vio) { |
| 461 | err = regulator_disable(sdev->vio); |
| 462 | if (err) { |
| 463 | v4l2_err(&sdev->sd, |
| 464 | "Failed to disable vio: %d\n", err); |
| 465 | } |
Dinesh Ram | cc6d618 | 2013-10-15 12:24:44 -0300 | [diff] [blame] | 466 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 467 | sdev->power_state = POWER_OFF; |
| 468 | } |
| 469 | |
| 470 | return err; |
| 471 | } |
| 472 | |
| 473 | /* |
| 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 |
| 476 | */ |
| 477 | static int si4713_checkrev(struct si4713_device *sdev) |
| 478 | { |
| 479 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
| 480 | int rval; |
| 481 | u8 resp[SI4713_GETREV_NRESP]; |
| 482 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 483 | rval = si4713_send_command(sdev, SI4713_CMD_GET_REV, |
| 484 | NULL, 0, |
| 485 | resp, ARRAY_SIZE(resp), |
| 486 | DEFAULT_TIMEOUT); |
| 487 | |
| 488 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 489 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 490 | |
| 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); |
| 494 | } else { |
Eduardo Valentin | b2c6eed | 2013-11-05 11:18:43 -0300 | [diff] [blame] | 495 | v4l2_err(&sdev->sd, "Invalid product number 0x%X\n", resp[1]); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 496 | rval = -EINVAL; |
| 497 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 498 | return rval; |
| 499 | } |
| 500 | |
| 501 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 502 | * si4713_wait_stc - Waits STC interrupt and clears status bits. Useful |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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 |
| 506 | */ |
| 507 | static int si4713_wait_stc(struct si4713_device *sdev, const int usecs) |
| 508 | { |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 509 | struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 510 | u8 resp[SI4713_GET_STATUS_NRESP]; |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 511 | unsigned long start_jiffies = jiffies; |
| 512 | int err; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 513 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 514 | if (client->irq && |
| 515 | !wait_for_completion_timeout(&sdev->work, usecs_to_jiffies(usecs) + 1)) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 516 | v4l2_warn(&sdev->sd, |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 517 | "(%s) Device took too much time to answer.\n", __func__); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 518 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 519 | for (;;) { |
| 520 | /* Clear status bits */ |
| 521 | err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS, |
| 522 | NULL, 0, |
| 523 | resp, ARRAY_SIZE(resp), |
| 524 | DEFAULT_TIMEOUT); |
| 525 | /* The USB device returns errors when it waits for the |
| 526 | * STC bit to be set. Hence polling */ |
| 527 | if (err >= 0) { |
| 528 | v4l2_dbg(1, debug, &sdev->sd, |
| 529 | "%s: status bits: 0x%02x\n", __func__, resp[0]); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 530 | |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 531 | if (resp[0] & SI4713_STC_INT) |
| 532 | return 0; |
| 533 | } |
| 534 | if (jiffies_to_usecs(jiffies - start_jiffies) > usecs) |
| 535 | return err < 0 ? err : -EIO; |
Hans Verkuil | cb15da3 | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 536 | /* We sleep here for 3-4 ms in order to avoid flooding the device |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 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. */ |
Hans Verkuil | cb15da3 | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 540 | usleep_range(3000, 4000); |
Dinesh Ram | 5173332 | 2013-10-15 12:24:38 -0300 | [diff] [blame] | 541 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 542 | } |
| 543 | |
| 544 | /* |
| 545 | * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 546 | * frequency between 76 and 108 MHz in 10 kHz units and |
| 547 | * steps of 50 kHz. |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 548 | * @sdev: si4713_device structure for the device we are communicating |
| 549 | * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz) |
| 550 | */ |
| 551 | static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency) |
| 552 | { |
| 553 | int err; |
| 554 | u8 val[SI4713_TXFREQ_NRESP]; |
| 555 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 556 | * .First byte = 0 |
| 557 | * .Second byte = frequency's MSB |
| 558 | * .Third byte = frequency's LSB |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 559 | */ |
| 560 | const u8 args[SI4713_TXFREQ_NARGS] = { |
| 561 | 0x00, |
| 562 | msb(frequency), |
| 563 | lsb(frequency), |
| 564 | }; |
| 565 | |
| 566 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ, |
| 567 | args, ARRAY_SIZE(args), val, |
| 568 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 569 | |
| 570 | if (err < 0) |
| 571 | return err; |
| 572 | |
| 573 | v4l2_dbg(1, debug, &sdev->sd, |
| 574 | "%s: frequency=0x%02x status=0x%02x\n", __func__, |
| 575 | frequency, val[0]); |
| 576 | |
| 577 | err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); |
| 578 | if (err < 0) |
| 579 | return err; |
| 580 | |
| 581 | return compose_u16(args[1], args[2]); |
| 582 | } |
| 583 | |
| 584 | /* |
Dinesh Ram | e26fa6d | 2013-10-15 12:24:40 -0300 | [diff] [blame] | 585 | * si4713_tx_tune_power - Sets the RF voltage level between 88 and 120 dBuV in |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 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. |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 591 | * @sdev: si4713_device structure for the device we are communicating |
Dinesh Ram | e26fa6d | 2013-10-15 12:24:40 -0300 | [diff] [blame] | 592 | * @power: tuning power (88 - 120 dBuV, unit/step 1 dB) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 593 | * @antcap: value of antenna tuning capacitor (0 - 191) |
| 594 | */ |
| 595 | static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power, |
| 596 | u8 antcap) |
| 597 | { |
| 598 | int err; |
| 599 | u8 val[SI4713_TXPWR_NRESP]; |
| 600 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 601 | * .First byte = 0 |
| 602 | * .Second byte = 0 |
| 603 | * .Third byte = power |
| 604 | * .Fourth byte = antcap |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 605 | */ |
Dinesh Ram | e26fa6d | 2013-10-15 12:24:40 -0300 | [diff] [blame] | 606 | u8 args[SI4713_TXPWR_NARGS] = { |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 607 | 0x00, |
| 608 | 0x00, |
| 609 | power, |
| 610 | antcap, |
| 611 | }; |
| 612 | |
Dinesh Ram | e26fa6d | 2013-10-15 12:24:40 -0300 | [diff] [blame] | 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; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 616 | |
| 617 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER, |
| 618 | args, ARRAY_SIZE(args), val, |
| 619 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 620 | |
| 621 | if (err < 0) |
| 622 | return err; |
| 623 | |
| 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]); |
| 627 | |
| 628 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER); |
| 629 | } |
| 630 | |
| 631 | /* |
| 632 | * si4713_tx_tune_measure - Enters receive mode and measures the received noise |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 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 |
| 638 | * override. |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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) |
| 642 | */ |
| 643 | static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency, |
| 644 | u8 antcap) |
| 645 | { |
| 646 | int err; |
| 647 | u8 val[SI4713_TXMEA_NRESP]; |
| 648 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 649 | * .First byte = 0 |
| 650 | * .Second byte = frequency's MSB |
| 651 | * .Third byte = frequency's LSB |
| 652 | * .Fourth byte = antcap |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 653 | */ |
| 654 | const u8 args[SI4713_TXMEA_NARGS] = { |
| 655 | 0x00, |
| 656 | msb(frequency), |
| 657 | lsb(frequency), |
| 658 | antcap, |
| 659 | }; |
| 660 | |
| 661 | sdev->tune_rnl = DEFAULT_TUNE_RNL; |
| 662 | |
| 663 | if (antcap > SI4713_MAX_ANTCAP) |
| 664 | return -EDOM; |
| 665 | |
| 666 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE, |
| 667 | args, ARRAY_SIZE(args), val, |
| 668 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 669 | |
| 670 | if (err < 0) |
| 671 | return err; |
| 672 | |
| 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]); |
| 676 | |
| 677 | return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE); |
| 678 | } |
| 679 | |
| 680 | /* |
| 681 | * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 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. |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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 |
| 693 | */ |
| 694 | static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack, |
| 695 | u16 *frequency, u8 *power, |
| 696 | u8 *antcap, u8 *noise) |
| 697 | { |
| 698 | int err; |
| 699 | u8 val[SI4713_TXSTATUS_NRESP]; |
| 700 | /* |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 701 | * .First byte = intack bit |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 702 | */ |
| 703 | const u8 args[SI4713_TXSTATUS_NARGS] = { |
| 704 | intack & SI4713_INTACK_MASK, |
| 705 | }; |
| 706 | |
| 707 | err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS, |
| 708 | args, ARRAY_SIZE(args), val, |
| 709 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 710 | |
| 711 | if (!err) { |
| 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; |
| 716 | *power = val[5]; |
| 717 | *antcap = val[6]; |
| 718 | *noise = val[7]; |
| 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); |
| 722 | } |
| 723 | |
| 724 | return err; |
| 725 | } |
| 726 | |
| 727 | /* |
| 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. |
| 731 | * @rdsb: RDS Block B |
| 732 | * @rdsc: RDS Block C |
| 733 | * @rdsd: RDS Block D |
| 734 | * @cbleft: returns the number of available circular buffer blocks minus the |
| 735 | * number of used circular buffer blocks. |
| 736 | */ |
| 737 | static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb, |
| 738 | u16 rdsc, u16 rdsd, s8 *cbleft) |
| 739 | { |
| 740 | int err; |
| 741 | u8 val[SI4713_RDSBUFF_NRESP]; |
| 742 | |
| 743 | const u8 args[SI4713_RDSBUFF_NARGS] = { |
| 744 | mode & SI4713_RDSBUFF_MODE_MASK, |
| 745 | msb(rdsb), |
| 746 | lsb(rdsb), |
| 747 | msb(rdsc), |
| 748 | lsb(rdsc), |
| 749 | msb(rdsd), |
| 750 | lsb(rdsd), |
| 751 | }; |
| 752 | |
| 753 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF, |
| 754 | args, ARRAY_SIZE(args), val, |
| 755 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 756 | |
| 757 | if (!err) { |
| 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]); |
| 765 | } |
| 766 | |
| 767 | return err; |
| 768 | } |
| 769 | |
| 770 | /* |
| 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 |
| 775 | */ |
| 776 | static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid, |
| 777 | unsigned char *pschar) |
| 778 | { |
| 779 | int err; |
| 780 | u8 val[SI4713_RDSPS_NRESP]; |
| 781 | |
| 782 | const u8 args[SI4713_RDSPS_NARGS] = { |
| 783 | psid & SI4713_RDSPS_PSID_MASK, |
| 784 | pschar[0], |
| 785 | pschar[1], |
| 786 | pschar[2], |
| 787 | pschar[3], |
| 788 | }; |
| 789 | |
| 790 | err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS, |
| 791 | args, ARRAY_SIZE(args), val, |
| 792 | ARRAY_SIZE(val), DEFAULT_TIMEOUT); |
| 793 | |
| 794 | if (err < 0) |
| 795 | return err; |
| 796 | |
| 797 | v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]); |
| 798 | |
| 799 | return err; |
| 800 | } |
| 801 | |
| 802 | static int si4713_set_power_state(struct si4713_device *sdev, u8 value) |
| 803 | { |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 804 | if (value) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 805 | return si4713_powerup(sdev); |
| 806 | return si4713_powerdown(sdev); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 807 | } |
| 808 | |
| 809 | static int si4713_set_mute(struct si4713_device *sdev, u16 mute) |
| 810 | { |
| 811 | int rval = 0; |
| 812 | |
| 813 | mute = set_mute(mute); |
| 814 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 815 | if (sdev->power_state) |
| 816 | rval = si4713_write_property(sdev, |
| 817 | SI4713_TX_LINE_INPUT_MUTE, mute); |
| 818 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 819 | return rval; |
| 820 | } |
| 821 | |
| 822 | static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name) |
| 823 | { |
| 824 | int rval = 0, i; |
| 825 | u8 len = 0; |
| 826 | |
| 827 | /* We want to clear the whole thing */ |
| 828 | if (!strlen(ps_name)) |
| 829 | memset(ps_name, 0, MAX_RDS_PS_NAME + 1); |
| 830 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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)), |
| 835 | ps_name + i); |
| 836 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 837 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 838 | } |
| 839 | |
| 840 | /* Setup the size to be sent */ |
| 841 | if (strlen(ps_name)) |
| 842 | len = strlen(ps_name) - 1; |
| 843 | else |
| 844 | len = 1; |
| 845 | |
| 846 | rval = si4713_write_property(sdev, |
| 847 | SI4713_TX_RDS_PS_MESSAGE_COUNT, |
| 848 | rds_ps_nblocks(len)); |
| 849 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 850 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 851 | |
| 852 | rval = si4713_write_property(sdev, |
| 853 | SI4713_TX_RDS_PS_REPEAT_COUNT, |
| 854 | DEFAULT_RDS_PS_REPEAT_COUNT * 2); |
| 855 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 856 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 857 | } |
| 858 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 859 | return rval; |
| 860 | } |
| 861 | |
Hans Verkuil | 8aab72b | 2013-10-15 12:24:45 -0300 | [diff] [blame] | 862 | static int si4713_set_rds_radio_text(struct si4713_device *sdev, const char *rt) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 863 | { |
Hans Verkuil | 8aab72b | 2013-10-15 12:24:45 -0300 | [diff] [blame] | 864 | static const char cr[RDS_RADIOTEXT_BLK_SIZE] = { RDS_CARRIAGE_RETURN, 0 }; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 865 | int rval = 0, i; |
| 866 | u16 t_index = 0; |
| 867 | u8 b_index = 0, cr_inserted = 0; |
| 868 | s8 left; |
| 869 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 870 | if (!sdev->power_state) |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 871 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 872 | |
| 873 | rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left); |
| 874 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 875 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 876 | |
| 877 | if (!strlen(rt)) |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 878 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 879 | |
| 880 | do { |
| 881 | /* RDS spec says that if the last block isn't used, |
| 882 | * then apply a carriage return |
| 883 | */ |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 884 | if (t_index < (RDS_RADIOTEXT_INDEX_MAX * RDS_RADIOTEXT_BLK_SIZE)) { |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 885 | for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) { |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 886 | if (!rt[t_index + i] || |
| 887 | rt[t_index + i] == RDS_CARRIAGE_RETURN) { |
Hans Verkuil | 8aab72b | 2013-10-15 12:24:45 -0300 | [diff] [blame] | 888 | rt = cr; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 889 | cr_inserted = 1; |
| 890 | break; |
| 891 | } |
| 892 | } |
| 893 | } |
| 894 | |
| 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]), |
| 899 | &left); |
| 900 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 901 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 902 | |
| 903 | t_index += RDS_RADIOTEXT_BLK_SIZE; |
| 904 | |
| 905 | if (cr_inserted) |
| 906 | break; |
| 907 | } while (left > 0); |
| 908 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 909 | return rval; |
| 910 | } |
| 911 | |
| 912 | /* |
| 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 |
| 916 | */ |
| 917 | static int si4713_update_tune_status(struct si4713_device *sdev) |
| 918 | { |
| 919 | int rval; |
| 920 | u16 f = 0; |
| 921 | u8 p = 0, a = 0, n = 0; |
| 922 | |
| 923 | rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n); |
| 924 | |
| 925 | if (rval < 0) |
| 926 | goto exit; |
| 927 | |
| 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 |
| 930 | volatiles. |
| 931 | sdev->power_level = p; |
| 932 | sdev->antenna_capacitor = a;*/ |
| 933 | sdev->tune_rnl = n; |
| 934 | |
| 935 | exit: |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 936 | return rval; |
| 937 | } |
| 938 | |
| 939 | static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id, |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 940 | s32 *bit, s32 *mask, u16 *property, int *mul, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 941 | unsigned long **table, int *size) |
| 942 | { |
| 943 | s32 rval = 0; |
| 944 | |
| 945 | switch (id) { |
| 946 | /* FM_TX class controls */ |
| 947 | case V4L2_CID_RDS_TX_PI: |
| 948 | *property = SI4713_TX_RDS_PI; |
| 949 | *mul = 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 950 | break; |
| 951 | case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD: |
| 952 | *property = SI4713_TX_ACOMP_THRESHOLD; |
| 953 | *mul = 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 954 | break; |
| 955 | case V4L2_CID_AUDIO_COMPRESSION_GAIN: |
| 956 | *property = SI4713_TX_ACOMP_GAIN; |
| 957 | *mul = 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 958 | break; |
| 959 | case V4L2_CID_PILOT_TONE_FREQUENCY: |
| 960 | *property = SI4713_TX_PILOT_FREQUENCY; |
| 961 | *mul = 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 962 | break; |
| 963 | case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME: |
| 964 | *property = SI4713_TX_ACOMP_ATTACK_TIME; |
| 965 | *mul = ATTACK_TIME_UNIT; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 966 | break; |
| 967 | case V4L2_CID_PILOT_TONE_DEVIATION: |
| 968 | *property = SI4713_TX_PILOT_DEVIATION; |
| 969 | *mul = 10; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 970 | break; |
| 971 | case V4L2_CID_AUDIO_LIMITER_DEVIATION: |
| 972 | *property = SI4713_TX_AUDIO_DEVIATION; |
| 973 | *mul = 10; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 974 | break; |
| 975 | case V4L2_CID_RDS_TX_DEVIATION: |
| 976 | *property = SI4713_TX_RDS_DEVIATION; |
| 977 | *mul = 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 978 | break; |
| 979 | |
| 980 | case V4L2_CID_RDS_TX_PTY: |
| 981 | *property = SI4713_TX_RDS_PS_MISC; |
| 982 | *bit = 5; |
| 983 | *mask = 0x1F << 5; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 984 | break; |
Hans Verkuil | 1abba28 | 2014-07-21 10:45:39 -0300 | [diff] [blame] | 985 | case V4L2_CID_RDS_TX_DYNAMIC_PTY: |
| 986 | *property = SI4713_TX_RDS_PS_MISC; |
| 987 | *bit = 15; |
| 988 | *mask = 1 << 15; |
| 989 | break; |
| 990 | case V4L2_CID_RDS_TX_COMPRESSED: |
| 991 | *property = SI4713_TX_RDS_PS_MISC; |
| 992 | *bit = 14; |
| 993 | *mask = 1 << 14; |
| 994 | break; |
| 995 | case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD: |
| 996 | *property = SI4713_TX_RDS_PS_MISC; |
| 997 | *bit = 13; |
| 998 | *mask = 1 << 13; |
| 999 | break; |
| 1000 | case V4L2_CID_RDS_TX_MONO_STEREO: |
| 1001 | *property = SI4713_TX_RDS_PS_MISC; |
| 1002 | *bit = 12; |
| 1003 | *mask = 1 << 12; |
| 1004 | break; |
| 1005 | case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM: |
| 1006 | *property = SI4713_TX_RDS_PS_MISC; |
| 1007 | *bit = 10; |
| 1008 | *mask = 1 << 10; |
| 1009 | break; |
| 1010 | case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT: |
| 1011 | *property = SI4713_TX_RDS_PS_MISC; |
| 1012 | *bit = 4; |
| 1013 | *mask = 1 << 4; |
| 1014 | break; |
| 1015 | case V4L2_CID_RDS_TX_MUSIC_SPEECH: |
| 1016 | *property = SI4713_TX_RDS_PS_MISC; |
| 1017 | *bit = 3; |
| 1018 | *mask = 1 << 3; |
| 1019 | break; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1020 | case V4L2_CID_AUDIO_LIMITER_ENABLED: |
| 1021 | *property = SI4713_TX_ACOMP_ENABLE; |
| 1022 | *bit = 1; |
| 1023 | *mask = 1 << 1; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1024 | break; |
| 1025 | case V4L2_CID_AUDIO_COMPRESSION_ENABLED: |
| 1026 | *property = SI4713_TX_ACOMP_ENABLE; |
| 1027 | *bit = 0; |
| 1028 | *mask = 1 << 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1029 | break; |
| 1030 | case V4L2_CID_PILOT_TONE_ENABLED: |
| 1031 | *property = SI4713_TX_COMPONENT_ENABLE; |
| 1032 | *bit = 0; |
| 1033 | *mask = 1 << 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1034 | break; |
| 1035 | |
| 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); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1040 | break; |
| 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); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1045 | break; |
| 1046 | case V4L2_CID_TUNE_PREEMPHASIS: |
| 1047 | *property = SI4713_TX_PREEMPHASIS; |
| 1048 | *table = preemphasis_values; |
| 1049 | *size = ARRAY_SIZE(preemphasis_values); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1050 | break; |
| 1051 | |
| 1052 | default: |
| 1053 | rval = -EINVAL; |
| 1054 | break; |
Peter Senna Tschudin | cb9e40f | 2012-09-06 12:09:11 -0300 | [diff] [blame] | 1055 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1056 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1057 | return rval; |
| 1058 | } |
| 1059 | |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 1060 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f); |
Hans Verkuil | 3f70e1f5 | 2012-09-04 12:08:47 -0300 | [diff] [blame] | 1061 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1062 | /* |
| 1063 | * si4713_setup - Sets the device up with current configuration. |
| 1064 | * @sdev: si4713_device structure for the device we are communicating |
| 1065 | */ |
| 1066 | static int si4713_setup(struct si4713_device *sdev) |
| 1067 | { |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1068 | struct v4l2_frequency f; |
| 1069 | struct v4l2_modulator vm; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1070 | int rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1071 | |
| 1072 | /* Device procedure needs to set frequency first */ |
Hans Verkuil | b387754 | 2013-04-08 17:25:05 -0300 | [diff] [blame] | 1073 | f.tuner = 0; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1074 | f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1075 | f.frequency = si4713_to_v4l2(f.frequency); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1076 | rval = si4713_s_frequency(&sdev->sd, &f); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1077 | |
| 1078 | vm.index = 0; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1079 | if (sdev->stereo) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1080 | vm.txsubchans = V4L2_TUNER_SUB_STEREO; |
| 1081 | else |
| 1082 | vm.txsubchans = V4L2_TUNER_SUB_MONO; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1083 | if (sdev->rds_enabled) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1084 | vm.txsubchans |= V4L2_TUNER_SUB_RDS; |
| 1085 | si4713_s_modulator(&sdev->sd, &vm); |
| 1086 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1087 | return rval; |
| 1088 | } |
| 1089 | |
| 1090 | /* |
| 1091 | * si4713_initialize - Sets the device up with default configuration. |
| 1092 | * @sdev: si4713_device structure for the device we are communicating |
| 1093 | */ |
| 1094 | static int si4713_initialize(struct si4713_device *sdev) |
| 1095 | { |
| 1096 | int rval; |
| 1097 | |
| 1098 | rval = si4713_set_power_state(sdev, POWER_ON); |
| 1099 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1100 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1101 | |
| 1102 | rval = si4713_checkrev(sdev); |
| 1103 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1104 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1105 | |
| 1106 | rval = si4713_set_power_state(sdev, POWER_OFF); |
| 1107 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1108 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1109 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1110 | sdev->frequency = DEFAULT_FREQUENCY; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1111 | sdev->stereo = 1; |
| 1112 | sdev->tune_rnl = DEFAULT_TUNE_RNL; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1113 | return 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1114 | } |
| 1115 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1116 | /* si4713_s_ctrl - set the value of a control */ |
| 1117 | static int si4713_s_ctrl(struct v4l2_ctrl *ctrl) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1118 | { |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1119 | struct si4713_device *sdev = |
| 1120 | container_of(ctrl->handler, struct si4713_device, ctrl_handler); |
| 1121 | u32 val = 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1122 | s32 bit = 0, mask = 0; |
| 1123 | u16 property = 0; |
| 1124 | int mul = 0; |
| 1125 | unsigned long *table = NULL; |
| 1126 | int size = 0; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1127 | bool force = false; |
| 1128 | int c; |
| 1129 | int ret = 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1130 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1131 | if (ctrl->id != V4L2_CID_AUDIO_MUTE) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1132 | return -EINVAL; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1133 | if (ctrl->is_new) { |
| 1134 | if (ctrl->val) { |
| 1135 | ret = si4713_set_mute(sdev, ctrl->val); |
| 1136 | if (!ret) |
| 1137 | ret = si4713_set_power_state(sdev, POWER_DOWN); |
| 1138 | return ret; |
| 1139 | } |
| 1140 | ret = si4713_set_power_state(sdev, POWER_UP); |
| 1141 | if (!ret) |
| 1142 | ret = si4713_set_mute(sdev, ctrl->val); |
| 1143 | if (!ret) |
| 1144 | ret = si4713_setup(sdev); |
| 1145 | if (ret) |
| 1146 | return ret; |
| 1147 | force = true; |
| 1148 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1149 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1150 | if (!sdev->power_state) |
| 1151 | return 0; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1152 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1153 | for (c = 1; !ret && c < ctrl->ncontrols; c++) { |
| 1154 | ctrl = ctrl->cluster[c]; |
| 1155 | |
| 1156 | if (!force && !ctrl->is_new) |
| 1157 | continue; |
| 1158 | |
| 1159 | switch (ctrl->id) { |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1160 | case V4L2_CID_RDS_TX_PS_NAME: |
Hans Verkuil | 2a9ec37 | 2014-04-27 03:38:13 -0300 | [diff] [blame] | 1161 | ret = si4713_set_rds_ps_name(sdev, ctrl->p_new.p_char); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1162 | break; |
| 1163 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1164 | case V4L2_CID_RDS_TX_RADIO_TEXT: |
Hans Verkuil | 2a9ec37 | 2014-04-27 03:38:13 -0300 | [diff] [blame] | 1165 | ret = si4713_set_rds_radio_text(sdev, ctrl->p_new.p_char); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1166 | break; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1167 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1168 | case V4L2_CID_TUNE_ANTENNA_CAPACITOR: |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 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. */ |
| 1172 | if (force) |
| 1173 | break; |
| 1174 | /* fall through */ |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1175 | case V4L2_CID_TUNE_POWER_LEVEL: |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1176 | ret = si4713_tx_tune_power(sdev, |
| 1177 | sdev->tune_pwr_level->val, sdev->tune_ant_cap->val); |
| 1178 | if (!ret) { |
| 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; |
| 1182 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1183 | break; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1184 | |
Hans Verkuil | 1abba28 | 2014-07-21 10:45:39 -0300 | [diff] [blame] | 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; |
| 1190 | } else { |
| 1191 | val = 0xe0e0; |
| 1192 | } |
| 1193 | ret = si4713_write_property(sdev, SI4713_TX_RDS_PS_AF, val); |
| 1194 | break; |
| 1195 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1196 | default: |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1197 | ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit, |
| 1198 | &mask, &property, &mul, &table, &size); |
| 1199 | if (ret < 0) |
| 1200 | break; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1201 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1202 | val = ctrl->val; |
| 1203 | if (mul) { |
| 1204 | val = val / mul; |
| 1205 | } else if (table) { |
| 1206 | ret = usecs_to_dev(val, table, size); |
| 1207 | if (ret < 0) |
| 1208 | break; |
| 1209 | val = ret; |
| 1210 | ret = 0; |
| 1211 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1212 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1213 | if (mask) { |
| 1214 | ret = si4713_read_property(sdev, property, &val); |
| 1215 | if (ret < 0) |
| 1216 | break; |
| 1217 | val = set_bits(val, ctrl->val, bit, mask); |
| 1218 | } |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1219 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1220 | ret = si4713_write_property(sdev, property, val); |
| 1221 | if (ret < 0) |
| 1222 | break; |
| 1223 | if (mask) |
| 1224 | val = ctrl->val; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1225 | break; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1226 | } |
| 1227 | } |
| 1228 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1229 | return ret; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1230 | } |
| 1231 | |
| 1232 | /* si4713_ioctl - deal with private ioctls (only rnl for now) */ |
Mauro Carvalho Chehab | 0dec868 | 2012-10-27 18:35:46 -0200 | [diff] [blame] | 1233 | static long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1234 | { |
| 1235 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1236 | struct si4713_rnl *rnl = arg; |
| 1237 | u16 frequency; |
| 1238 | int rval = 0; |
| 1239 | |
| 1240 | if (!arg) |
| 1241 | return -EINVAL; |
| 1242 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1243 | switch (cmd) { |
| 1244 | case SI4713_IOC_MEASURE_RNL: |
| 1245 | frequency = v4l2_to_si4713(rnl->frequency); |
| 1246 | |
| 1247 | if (sdev->power_state) { |
| 1248 | /* Set desired measurement frequency */ |
| 1249 | rval = si4713_tx_tune_measure(sdev, frequency, 0); |
| 1250 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1251 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1252 | /* get results from tune status */ |
| 1253 | rval = si4713_update_tune_status(sdev); |
| 1254 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1255 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1256 | } |
| 1257 | rnl->rnl = sdev->tune_rnl; |
| 1258 | break; |
| 1259 | |
| 1260 | default: |
| 1261 | /* nothing */ |
| 1262 | rval = -ENOIOCTLCMD; |
| 1263 | } |
| 1264 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1265 | return rval; |
| 1266 | } |
| 1267 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1268 | /* si4713_g_modulator - get modulator attributes */ |
| 1269 | static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm) |
| 1270 | { |
| 1271 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1272 | int rval = 0; |
| 1273 | |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1274 | if (!sdev) |
| 1275 | return -ENODEV; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1276 | |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1277 | if (vm->index > 0) |
| 1278 | return -EINVAL; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1279 | |
| 1280 | strncpy(vm->name, "FM Modulator", 32); |
| 1281 | vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW | |
Matti Aaltonen | cb0ed22 | 2010-10-18 06:54:14 -0300 | [diff] [blame] | 1282 | V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_CONTROLS; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1283 | |
| 1284 | /* Report current frequency range limits */ |
| 1285 | vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW); |
| 1286 | vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH); |
| 1287 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1288 | if (sdev->power_state) { |
| 1289 | u32 comp_en = 0; |
| 1290 | |
| 1291 | rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE, |
| 1292 | &comp_en); |
| 1293 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1294 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1295 | |
| 1296 | sdev->stereo = get_status_bit(comp_en, 1, 1 << 1); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1297 | } |
| 1298 | |
| 1299 | /* Report current audio mode: mono or stereo */ |
| 1300 | if (sdev->stereo) |
| 1301 | vm->txsubchans = V4L2_TUNER_SUB_STEREO; |
| 1302 | else |
| 1303 | vm->txsubchans = V4L2_TUNER_SUB_MONO; |
| 1304 | |
| 1305 | /* Report rds feature status */ |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1306 | if (sdev->rds_enabled) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1307 | vm->txsubchans |= V4L2_TUNER_SUB_RDS; |
| 1308 | else |
| 1309 | vm->txsubchans &= ~V4L2_TUNER_SUB_RDS; |
| 1310 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1311 | return rval; |
| 1312 | } |
| 1313 | |
| 1314 | /* si4713_s_modulator - set modulator attributes */ |
Hans Verkuil | 3f70e1f5 | 2012-09-04 12:08:47 -0300 | [diff] [blame] | 1315 | static int si4713_s_modulator(struct v4l2_subdev *sd, const struct v4l2_modulator *vm) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1316 | { |
| 1317 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1318 | int rval = 0; |
| 1319 | u16 stereo, rds; |
| 1320 | u32 p; |
| 1321 | |
Hans Verkuil | a65f315 | 2009-08-31 17:21:04 -0300 | [diff] [blame] | 1322 | if (!sdev) |
| 1323 | return -ENODEV; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1324 | |
Hans Verkuil | a65f315 | 2009-08-31 17:21:04 -0300 | [diff] [blame] | 1325 | if (vm->index > 0) |
| 1326 | return -EINVAL; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1327 | |
| 1328 | /* Set audio mode: mono or stereo */ |
| 1329 | if (vm->txsubchans & V4L2_TUNER_SUB_STEREO) |
| 1330 | stereo = 1; |
| 1331 | else if (vm->txsubchans & V4L2_TUNER_SUB_MONO) |
| 1332 | stereo = 0; |
| 1333 | else |
Hans Verkuil | a65f315 | 2009-08-31 17:21:04 -0300 | [diff] [blame] | 1334 | return -EINVAL; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1335 | |
| 1336 | rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS); |
| 1337 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1338 | if (sdev->power_state) { |
| 1339 | rval = si4713_read_property(sdev, |
| 1340 | SI4713_TX_COMPONENT_ENABLE, &p); |
| 1341 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1342 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1343 | |
| 1344 | p = set_bits(p, stereo, 1, 1 << 1); |
| 1345 | p = set_bits(p, rds, 2, 1 << 2); |
| 1346 | |
| 1347 | rval = si4713_write_property(sdev, |
| 1348 | SI4713_TX_COMPONENT_ENABLE, p); |
| 1349 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1350 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1351 | } |
| 1352 | |
| 1353 | sdev->stereo = stereo; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1354 | sdev->rds_enabled = rds; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1355 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1356 | return rval; |
| 1357 | } |
| 1358 | |
| 1359 | /* si4713_g_frequency - get tuner or modulator radio frequency */ |
| 1360 | static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
| 1361 | { |
| 1362 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1363 | int rval = 0; |
| 1364 | |
Hans Verkuil | b387754 | 2013-04-08 17:25:05 -0300 | [diff] [blame] | 1365 | if (f->tuner) |
| 1366 | return -EINVAL; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1367 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1368 | if (sdev->power_state) { |
| 1369 | u16 freq; |
| 1370 | u8 p, a, n; |
| 1371 | |
| 1372 | rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n); |
| 1373 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1374 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1375 | |
| 1376 | sdev->frequency = freq; |
| 1377 | } |
| 1378 | |
| 1379 | f->frequency = si4713_to_v4l2(sdev->frequency); |
| 1380 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1381 | return rval; |
| 1382 | } |
| 1383 | |
| 1384 | /* si4713_s_frequency - set tuner or modulator radio frequency */ |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 1385 | static int si4713_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequency *f) |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1386 | { |
| 1387 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1388 | int rval = 0; |
| 1389 | u16 frequency = v4l2_to_si4713(f->frequency); |
| 1390 | |
Hans Verkuil | b387754 | 2013-04-08 17:25:05 -0300 | [diff] [blame] | 1391 | if (f->tuner) |
| 1392 | return -EINVAL; |
| 1393 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1394 | /* Check frequency range */ |
Hans Verkuil | b387754 | 2013-04-08 17:25:05 -0300 | [diff] [blame] | 1395 | frequency = clamp_t(u16, frequency, FREQ_RANGE_LOW, FREQ_RANGE_HIGH); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1396 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1397 | if (sdev->power_state) { |
| 1398 | rval = si4713_tx_tune_freq(sdev, frequency); |
| 1399 | if (rval < 0) |
Hans Verkuil | 55b2a31 | 2013-04-08 06:31:30 -0300 | [diff] [blame] | 1400 | return rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1401 | frequency = rval; |
| 1402 | rval = 0; |
| 1403 | } |
| 1404 | sdev->frequency = frequency; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1405 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1406 | return rval; |
| 1407 | } |
| 1408 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1409 | static const struct v4l2_ctrl_ops si4713_ctrl_ops = { |
| 1410 | .s_ctrl = si4713_s_ctrl, |
| 1411 | }; |
| 1412 | |
| 1413 | static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = { |
| 1414 | .ioctl = si4713_ioctl, |
| 1415 | }; |
| 1416 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 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, |
| 1422 | }; |
| 1423 | |
| 1424 | static const struct v4l2_subdev_ops si4713_subdev_ops = { |
| 1425 | .core = &si4713_subdev_core_ops, |
| 1426 | .tuner = &si4713_subdev_tuner_ops, |
| 1427 | }; |
| 1428 | |
Hans Verkuil | 1abba28 | 2014-07-21 10:45:39 -0300 | [diff] [blame] | 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, |
| 1432 | .min = 87600, |
| 1433 | .max = 107900, |
| 1434 | .step = 100, |
| 1435 | .def = 87600, |
| 1436 | .dims = { 1 }, |
| 1437 | .elem_size = sizeof(u32), |
| 1438 | }; |
| 1439 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1440 | /* |
| 1441 | * I2C driver interface |
| 1442 | */ |
| 1443 | /* si4713_probe - probe for the device */ |
| 1444 | static int si4713_probe(struct i2c_client *client, |
| 1445 | const struct i2c_device_id *id) |
| 1446 | { |
| 1447 | struct si4713_device *sdev; |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1448 | struct v4l2_ctrl_handler *hdl; |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 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; |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 1453 | int rval; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1454 | |
Sebastian Reichel | 80cd5c7 | 2014-10-21 12:07:02 -0300 | [diff] [blame] | 1455 | sdev = devm_kzalloc(&client->dev, sizeof(*sdev), GFP_KERNEL); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1456 | if (!sdev) { |
| 1457 | dev_err(&client->dev, "Failed to alloc video device.\n"); |
| 1458 | rval = -ENOMEM; |
| 1459 | goto exit; |
| 1460 | } |
| 1461 | |
Uwe Kleine-König | b36ae85 | 2015-03-26 17:47:53 -0300 | [diff] [blame] | 1462 | sdev->gpio_reset = devm_gpiod_get_optional(&client->dev, "reset", |
| 1463 | GPIOD_OUT_LOW); |
| 1464 | if (IS_ERR(sdev->gpio_reset)) { |
Sebastian Reichel | fbe14a1 | 2014-10-21 12:07:01 -0300 | [diff] [blame] | 1465 | rval = PTR_ERR(sdev->gpio_reset); |
| 1466 | dev_err(&client->dev, "Failed to request gpio: %d\n", rval); |
Sebastian Reichel | 80cd5c7 | 2014-10-21 12:07:02 -0300 | [diff] [blame] | 1467 | goto exit; |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 1468 | } |
| 1469 | |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 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) |
| 1474 | goto exit; |
Jarkko Nikula | 00df055 | 2010-10-29 11:31:39 -0300 | [diff] [blame] | 1475 | |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 1476 | dev_dbg(&client->dev, "no vdd regulator found: %d\n", rval); |
| 1477 | sdev->vdd = NULL; |
| 1478 | } |
| 1479 | |
| 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) |
| 1484 | goto exit; |
| 1485 | |
| 1486 | dev_dbg(&client->dev, "no vio regulator found: %d\n", rval); |
| 1487 | sdev->vio = NULL; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1488 | } |
| 1489 | |
| 1490 | v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops); |
| 1491 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1492 | init_completion(&sdev->work); |
| 1493 | |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 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); |
| 1498 | |
| 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); |
Hans Verkuil | 1abba28 | 2014-07-21 10:45:39 -0300 | [diff] [blame] | 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); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 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); |
| 1523 | /* |
| 1524 | * Report step as 8. From RDS spec, psname |
| 1525 | * should be 8. But there are receivers which scroll strings |
| 1526 | * sized as 8xN. |
| 1527 | */ |
| 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); |
| 1530 | /* |
| 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. |
| 1534 | */ |
| 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); |
| 1537 | |
| 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); |
| 1546 | |
| 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, |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 1553 | V4L2_CID_AUDIO_COMPRESSION_THRESHOLD, |
| 1554 | MIN_ACOMP_THRESHOLD, MAX_ACOMP_THRESHOLD, 1, |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 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); |
| 1562 | |
| 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); |
| 1571 | |
| 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, |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 1576 | V4L2_CID_TUNE_POWER_LEVEL, 0, SI4713_MAX_POWER, |
| 1577 | 1, DEFAULT_POWER_LEVEL); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1578 | sdev->tune_ant_cap = v4l2_ctrl_new_std(hdl, &si4713_ctrl_ops, |
Hans Verkuil | 9ca33cc | 2013-12-06 06:48:49 -0300 | [diff] [blame] | 1579 | V4L2_CID_TUNE_ANTENNA_CAPACITOR, 0, SI4713_MAX_ANTCAP, |
| 1580 | 1, 0); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1581 | |
| 1582 | if (hdl->error) { |
| 1583 | rval = hdl->error; |
| 1584 | goto free_ctrls; |
| 1585 | } |
Hans Verkuil | 1abba28 | 2014-07-21 10:45:39 -0300 | [diff] [blame] | 1586 | v4l2_ctrl_cluster(29, &sdev->mute); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1587 | sdev->sd.ctrl_handler = hdl; |
| 1588 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1589 | if (client->irq) { |
Sebastian Reichel | c3a5baf | 2014-10-21 12:07:03 -0300 | [diff] [blame] | 1590 | rval = devm_request_irq(&client->dev, client->irq, |
Michael Opdenacker | 0798ec6 | 2013-10-13 03:05:11 -0300 | [diff] [blame] | 1591 | si4713_handler, IRQF_TRIGGER_FALLING, |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1592 | client->name, sdev); |
| 1593 | if (rval < 0) { |
| 1594 | v4l2_err(&sdev->sd, "Could not request IRQ\n"); |
Sebastian Reichel | d4471de | 2014-10-21 12:07:00 -0300 | [diff] [blame] | 1595 | goto free_ctrls; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1596 | } |
| 1597 | v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n"); |
| 1598 | } else { |
| 1599 | v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n"); |
| 1600 | } |
| 1601 | |
| 1602 | rval = si4713_initialize(sdev); |
| 1603 | if (rval < 0) { |
| 1604 | v4l2_err(&sdev->sd, "Failed to probe device information.\n"); |
Sebastian Reichel | c3a5baf | 2014-10-21 12:07:03 -0300 | [diff] [blame] | 1605 | goto free_ctrls; |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1606 | } |
| 1607 | |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 1608 | if (!np && (!pdata || !pdata->is_platform_device)) |
| 1609 | return 0; |
| 1610 | |
| 1611 | si4713_pdev = platform_device_alloc("radio-si4713", -1); |
Julia Lawall | 50f2468 | 2015-04-05 09:06:22 -0300 | [diff] [blame] | 1612 | if (!si4713_pdev) { |
| 1613 | rval = -ENOMEM; |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 1614 | goto put_main_pdev; |
Julia Lawall | 50f2468 | 2015-04-05 09:06:22 -0300 | [diff] [blame] | 1615 | } |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 1616 | |
| 1617 | si4713_pdev_pdata.subdev = client; |
| 1618 | rval = platform_device_add_data(si4713_pdev, &si4713_pdev_pdata, |
| 1619 | sizeof(si4713_pdev_pdata)); |
| 1620 | if (rval) |
| 1621 | goto put_main_pdev; |
| 1622 | |
| 1623 | rval = platform_device_add(si4713_pdev); |
| 1624 | if (rval) |
| 1625 | goto put_main_pdev; |
| 1626 | |
| 1627 | sdev->pd = si4713_pdev; |
| 1628 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1629 | return 0; |
| 1630 | |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 1631 | put_main_pdev: |
| 1632 | platform_device_put(si4713_pdev); |
| 1633 | v4l2_device_unregister_subdev(&sdev->sd); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1634 | free_ctrls: |
| 1635 | v4l2_ctrl_handler_free(hdl); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1636 | exit: |
| 1637 | return rval; |
| 1638 | } |
| 1639 | |
| 1640 | /* si4713_remove - remove the device */ |
| 1641 | static int si4713_remove(struct i2c_client *client) |
| 1642 | { |
| 1643 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| 1644 | struct si4713_device *sdev = to_si4713_device(sd); |
| 1645 | |
Sebastian Reichel | 98bea62 | 2014-11-10 17:34:41 -0300 | [diff] [blame] | 1646 | platform_device_unregister(sdev->pd); |
| 1647 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1648 | if (sdev->power_state) |
| 1649 | si4713_set_power_state(sdev, POWER_DOWN); |
| 1650 | |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1651 | v4l2_device_unregister_subdev(sd); |
Hans Verkuil | 03aa1bc | 2013-04-08 17:27:18 -0300 | [diff] [blame] | 1652 | v4l2_ctrl_handler_free(sd->ctrl_handler); |
Eduardo Valentin | 02bee89 | 2009-08-08 08:46:53 -0300 | [diff] [blame] | 1653 | |
| 1654 | return 0; |
| 1655 | } |
| 1656 | |
| 1657 | /* si4713_i2c_driver - i2c driver interface */ |
| 1658 | static const struct i2c_device_id si4713_id[] = { |
| 1659 | { "si4713" , 0 }, |
| 1660 | { }, |
| 1661 | }; |
| 1662 | MODULE_DEVICE_TABLE(i2c, si4713_id); |
| 1663 | |
| 1664 | static struct i2c_driver si4713_i2c_driver = { |
| 1665 | .driver = { |
| 1666 | .name = "si4713", |
| 1667 | }, |
| 1668 | .probe = si4713_probe, |
| 1669 | .remove = si4713_remove, |
| 1670 | .id_table = si4713_id, |
| 1671 | }; |
| 1672 | |
Axel Lin | c6e8d86 | 2012-02-12 06:56:32 -0300 | [diff] [blame] | 1673 | module_i2c_driver(si4713_i2c_driver); |