Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 1 | /* |
| 2 | * FM Driver for Connectivity chip of Texas Instruments. |
| 3 | * This sub-module of FM driver implements FM TX functionality. |
| 4 | * |
| 5 | * Copyright (C) 2011 Texas Instruments |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <linux/delay.h> |
| 23 | #include "fmdrv.h" |
| 24 | #include "fmdrv_common.h" |
| 25 | #include "fmdrv_tx.h" |
| 26 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 27 | int fm_tx_set_stereo_mono(struct fmdev *fmdev, u16 mode) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 28 | { |
| 29 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 30 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 31 | |
| 32 | if (fmdev->tx_data.aud_mode == mode) |
| 33 | return 0; |
| 34 | |
| 35 | fmdbg("stereo mode: %d\n", mode); |
| 36 | |
| 37 | /* Set Stereo/Mono mode */ |
| 38 | payload = (1 - mode); |
| 39 | ret = fmc_send_cmd(fmdev, MONO_SET, REG_WR, &payload, |
| 40 | sizeof(payload), NULL, NULL); |
| 41 | if (ret < 0) |
| 42 | return ret; |
| 43 | |
| 44 | fmdev->tx_data.aud_mode = mode; |
| 45 | |
| 46 | return ret; |
| 47 | } |
| 48 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 49 | static int set_rds_text(struct fmdev *fmdev, u8 *rds_text) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 50 | { |
| 51 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 52 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 53 | |
| 54 | ret = fmc_send_cmd(fmdev, RDS_DATA_SET, REG_WR, rds_text, |
| 55 | strlen(rds_text), NULL, NULL); |
| 56 | if (ret < 0) |
| 57 | return ret; |
| 58 | |
| 59 | /* Scroll mode */ |
| 60 | payload = (u16)0x1; |
| 61 | ret = fmc_send_cmd(fmdev, DISPLAY_MODE, REG_WR, &payload, |
| 62 | sizeof(payload), NULL, NULL); |
| 63 | if (ret < 0) |
| 64 | return ret; |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 69 | static int set_rds_data_mode(struct fmdev *fmdev, u8 mode) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 70 | { |
| 71 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 72 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 73 | |
| 74 | /* Setting unique PI TODO: how unique? */ |
| 75 | payload = (u16)0xcafe; |
| 76 | ret = fmc_send_cmd(fmdev, PI_SET, REG_WR, &payload, |
| 77 | sizeof(payload), NULL, NULL); |
| 78 | if (ret < 0) |
| 79 | return ret; |
| 80 | |
| 81 | /* Set decoder id */ |
| 82 | payload = (u16)0xa; |
| 83 | ret = fmc_send_cmd(fmdev, DI_SET, REG_WR, &payload, |
| 84 | sizeof(payload), NULL, NULL); |
| 85 | if (ret < 0) |
| 86 | return ret; |
| 87 | |
| 88 | /* TODO: RDS_MODE_GET? */ |
| 89 | return 0; |
| 90 | } |
| 91 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 92 | static int set_rds_len(struct fmdev *fmdev, u8 type, u16 len) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 93 | { |
| 94 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 95 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 96 | |
| 97 | len |= type << 8; |
| 98 | payload = len; |
| 99 | ret = fmc_send_cmd(fmdev, RDS_CONFIG_DATA_SET, REG_WR, &payload, |
| 100 | sizeof(payload), NULL, NULL); |
| 101 | if (ret < 0) |
| 102 | return ret; |
| 103 | |
| 104 | /* TODO: LENGTH_GET? */ |
| 105 | return 0; |
| 106 | } |
| 107 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 108 | int fm_tx_set_rds_mode(struct fmdev *fmdev, u8 rds_en_dis) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 109 | { |
| 110 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 111 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 112 | u8 rds_text[] = "Zoom2\n"; |
| 113 | |
| 114 | fmdbg("rds_en_dis:%d(E:%d, D:%d)\n", rds_en_dis, |
| 115 | FM_RDS_ENABLE, FM_RDS_DISABLE); |
| 116 | |
| 117 | if (rds_en_dis == FM_RDS_ENABLE) { |
| 118 | /* Set RDS length */ |
| 119 | set_rds_len(fmdev, 0, strlen(rds_text)); |
| 120 | |
| 121 | /* Set RDS text */ |
| 122 | set_rds_text(fmdev, rds_text); |
| 123 | |
| 124 | /* Set RDS mode */ |
| 125 | set_rds_data_mode(fmdev, 0x0); |
| 126 | } |
| 127 | |
| 128 | /* Send command to enable RDS */ |
| 129 | if (rds_en_dis == FM_RDS_ENABLE) |
| 130 | payload = 0x01; |
| 131 | else |
| 132 | payload = 0x00; |
| 133 | |
| 134 | ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload, |
| 135 | sizeof(payload), NULL, NULL); |
| 136 | if (ret < 0) |
| 137 | return ret; |
| 138 | |
| 139 | if (rds_en_dis == FM_RDS_ENABLE) { |
| 140 | /* Set RDS length */ |
| 141 | set_rds_len(fmdev, 0, strlen(rds_text)); |
| 142 | |
| 143 | /* Set RDS text */ |
| 144 | set_rds_text(fmdev, rds_text); |
| 145 | } |
| 146 | fmdev->tx_data.rds.flag = rds_en_dis; |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 151 | int fm_tx_set_radio_text(struct fmdev *fmdev, u8 *rds_text, u8 rds_type) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 152 | { |
| 153 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 154 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 155 | |
| 156 | if (fmdev->curr_fmmode != FM_MODE_TX) |
| 157 | return -EPERM; |
| 158 | |
| 159 | fm_tx_set_rds_mode(fmdev, 0); |
| 160 | |
| 161 | /* Set RDS length */ |
| 162 | set_rds_len(fmdev, rds_type, strlen(rds_text)); |
| 163 | |
| 164 | /* Set RDS text */ |
| 165 | set_rds_text(fmdev, rds_text); |
| 166 | |
| 167 | /* Set RDS mode */ |
| 168 | set_rds_data_mode(fmdev, 0x0); |
| 169 | |
| 170 | payload = 1; |
| 171 | ret = fmc_send_cmd(fmdev, RDS_DATA_ENB, REG_WR, &payload, |
| 172 | sizeof(payload), NULL, NULL); |
| 173 | if (ret < 0) |
| 174 | return ret; |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 179 | int fm_tx_set_af(struct fmdev *fmdev, u32 af) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 180 | { |
| 181 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 182 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 183 | |
| 184 | if (fmdev->curr_fmmode != FM_MODE_TX) |
| 185 | return -EPERM; |
| 186 | |
| 187 | fmdbg("AF: %d\n", af); |
| 188 | |
| 189 | af = (af - 87500) / 100; |
| 190 | payload = (u16)af; |
| 191 | ret = fmc_send_cmd(fmdev, TA_SET, REG_WR, &payload, |
| 192 | sizeof(payload), NULL, NULL); |
| 193 | if (ret < 0) |
| 194 | return ret; |
| 195 | |
| 196 | return 0; |
| 197 | } |
| 198 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 199 | int fm_tx_set_region(struct fmdev *fmdev, u8 region) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 200 | { |
| 201 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 202 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 203 | |
| 204 | if (region != FM_BAND_EUROPE_US && region != FM_BAND_JAPAN) { |
| 205 | fmerr("Invalid band\n"); |
| 206 | return -EINVAL; |
| 207 | } |
| 208 | |
| 209 | /* Send command to set the band */ |
| 210 | payload = (u16)region; |
| 211 | ret = fmc_send_cmd(fmdev, TX_BAND_SET, REG_WR, &payload, |
| 212 | sizeof(payload), NULL, NULL); |
| 213 | if (ret < 0) |
| 214 | return ret; |
| 215 | |
| 216 | return 0; |
| 217 | } |
| 218 | |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 219 | int fm_tx_set_mute_mode(struct fmdev *fmdev, u8 mute_mode_toset) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 220 | { |
| 221 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 222 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 223 | |
| 224 | fmdbg("tx: mute mode %d\n", mute_mode_toset); |
| 225 | |
| 226 | payload = mute_mode_toset; |
| 227 | ret = fmc_send_cmd(fmdev, MUTE, REG_WR, &payload, |
| 228 | sizeof(payload), NULL, NULL); |
| 229 | if (ret < 0) |
| 230 | return ret; |
| 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | /* Set TX Audio I/O */ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 236 | static int set_audio_io(struct fmdev *fmdev) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 237 | { |
| 238 | struct fmtx_data *tx = &fmdev->tx_data; |
| 239 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 240 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 241 | |
| 242 | /* Set Audio I/O Enable */ |
| 243 | payload = tx->audio_io; |
| 244 | ret = fmc_send_cmd(fmdev, AUDIO_IO_SET, REG_WR, &payload, |
| 245 | sizeof(payload), NULL, NULL); |
| 246 | if (ret < 0) |
| 247 | return ret; |
| 248 | |
| 249 | /* TODO: is audio set? */ |
| 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | /* Start TX Transmission */ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 254 | static int enable_xmit(struct fmdev *fmdev, u8 new_xmit_state) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 255 | { |
| 256 | struct fmtx_data *tx = &fmdev->tx_data; |
| 257 | unsigned long timeleft; |
| 258 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 259 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 260 | |
| 261 | /* Enable POWER_ENB interrupts */ |
| 262 | payload = FM_POW_ENB_EVENT; |
| 263 | ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload, |
| 264 | sizeof(payload), NULL, NULL); |
| 265 | if (ret < 0) |
| 266 | return ret; |
| 267 | |
| 268 | /* Set Power Enable */ |
| 269 | payload = new_xmit_state; |
| 270 | ret = fmc_send_cmd(fmdev, POWER_ENB_SET, REG_WR, &payload, |
| 271 | sizeof(payload), NULL, NULL); |
| 272 | if (ret < 0) |
| 273 | return ret; |
| 274 | |
| 275 | /* Wait for Power Enabled */ |
| 276 | init_completion(&fmdev->maintask_comp); |
| 277 | timeleft = wait_for_completion_timeout(&fmdev->maintask_comp, |
| 278 | FM_DRV_TX_TIMEOUT); |
| 279 | if (!timeleft) { |
| 280 | fmerr("Timeout(%d sec),didn't get tune ended interrupt\n", |
| 281 | jiffies_to_msecs(FM_DRV_TX_TIMEOUT) / 1000); |
| 282 | return -ETIMEDOUT; |
| 283 | } |
| 284 | |
| 285 | set_bit(FM_CORE_TX_XMITING, &fmdev->flag); |
| 286 | tx->xmit_state = new_xmit_state; |
| 287 | |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | /* Set TX power level */ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 292 | int fm_tx_set_pwr_lvl(struct fmdev *fmdev, u8 new_pwr_lvl) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 293 | { |
| 294 | u16 payload; |
| 295 | struct fmtx_data *tx = &fmdev->tx_data; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 296 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 297 | |
| 298 | if (fmdev->curr_fmmode != FM_MODE_TX) |
| 299 | return -EPERM; |
| 300 | fmdbg("tx: pwr_level_to_set %ld\n", (long int)new_pwr_lvl); |
| 301 | |
| 302 | /* If the core isn't ready update global variable */ |
| 303 | if (!test_bit(FM_CORE_READY, &fmdev->flag)) { |
| 304 | tx->pwr_lvl = new_pwr_lvl; |
| 305 | return 0; |
| 306 | } |
| 307 | |
| 308 | /* Set power level: Application will specify power level value in |
| 309 | * units of dB/uV, whereas range and step are specific to FM chip. |
| 310 | * For TI's WL chips, convert application specified power level value |
| 311 | * to chip specific value by subtracting 122 from it. Refer to TI FM |
| 312 | * data sheet for details. |
| 313 | * */ |
| 314 | |
| 315 | payload = (FM_PWR_LVL_HIGH - new_pwr_lvl); |
| 316 | ret = fmc_send_cmd(fmdev, POWER_LEV_SET, REG_WR, &payload, |
| 317 | sizeof(payload), NULL, NULL); |
| 318 | if (ret < 0) |
| 319 | return ret; |
| 320 | |
| 321 | /* TODO: is the power level set? */ |
| 322 | tx->pwr_lvl = new_pwr_lvl; |
| 323 | |
| 324 | return 0; |
| 325 | } |
| 326 | |
| 327 | /* |
| 328 | * Sets FM TX pre-emphasis filter value (OFF, 50us, or 75us) |
| 329 | * Convert V4L2 specified filter values to chip specific filter values. |
| 330 | */ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 331 | int fm_tx_set_preemph_filter(struct fmdev *fmdev, u32 preemphasis) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 332 | { |
| 333 | struct fmtx_data *tx = &fmdev->tx_data; |
| 334 | u16 payload; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 335 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 336 | |
| 337 | if (fmdev->curr_fmmode != FM_MODE_TX) |
| 338 | return -EPERM; |
| 339 | |
| 340 | switch (preemphasis) { |
| 341 | case V4L2_PREEMPHASIS_DISABLED: |
| 342 | payload = FM_TX_PREEMPH_OFF; |
| 343 | break; |
| 344 | case V4L2_PREEMPHASIS_50_uS: |
| 345 | payload = FM_TX_PREEMPH_50US; |
| 346 | break; |
| 347 | case V4L2_PREEMPHASIS_75_uS: |
| 348 | payload = FM_TX_PREEMPH_75US; |
| 349 | break; |
| 350 | } |
| 351 | |
| 352 | ret = fmc_send_cmd(fmdev, PREMPH_SET, REG_WR, &payload, |
| 353 | sizeof(payload), NULL, NULL); |
| 354 | if (ret < 0) |
| 355 | return ret; |
| 356 | |
| 357 | tx->preemph = payload; |
| 358 | |
| 359 | return ret; |
| 360 | } |
| 361 | |
| 362 | /* Get the TX tuning capacitor value.*/ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 363 | int fm_tx_get_tune_cap_val(struct fmdev *fmdev) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 364 | { |
| 365 | u16 curr_val; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 366 | u32 resp_len; |
| 367 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 368 | |
| 369 | if (fmdev->curr_fmmode != FM_MODE_TX) |
| 370 | return -EPERM; |
| 371 | |
| 372 | ret = fmc_send_cmd(fmdev, READ_FMANT_TUNE_VALUE, REG_RD, |
| 373 | NULL, sizeof(curr_val), &curr_val, &resp_len); |
| 374 | if (ret < 0) |
| 375 | return ret; |
| 376 | |
| 377 | curr_val = be16_to_cpu(curr_val); |
| 378 | |
| 379 | return curr_val; |
| 380 | } |
| 381 | |
| 382 | /* Set TX Frequency */ |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 383 | int fm_tx_set_freq(struct fmdev *fmdev, u32 freq_to_set) |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 384 | { |
| 385 | struct fmtx_data *tx = &fmdev->tx_data; |
| 386 | u16 payload, chanl_index; |
Xi Wang | 8cc20dd | 2011-12-02 06:01:13 -0300 | [diff] [blame^] | 387 | int ret; |
Manjunatha Halli | 8b7a186 | 2011-01-11 06:37:53 -0300 | [diff] [blame] | 388 | |
| 389 | if (test_bit(FM_CORE_TX_XMITING, &fmdev->flag)) { |
| 390 | enable_xmit(fmdev, 0); |
| 391 | clear_bit(FM_CORE_TX_XMITING, &fmdev->flag); |
| 392 | } |
| 393 | |
| 394 | /* Enable FR, BL interrupts */ |
| 395 | payload = (FM_FR_EVENT | FM_BL_EVENT); |
| 396 | ret = fmc_send_cmd(fmdev, INT_MASK_SET, REG_WR, &payload, |
| 397 | sizeof(payload), NULL, NULL); |
| 398 | if (ret < 0) |
| 399 | return ret; |
| 400 | |
| 401 | tx->tx_frq = (unsigned long)freq_to_set; |
| 402 | fmdbg("tx: freq_to_set %ld\n", (long int)tx->tx_frq); |
| 403 | |
| 404 | chanl_index = freq_to_set / 10; |
| 405 | |
| 406 | /* Set current tuner channel */ |
| 407 | payload = chanl_index; |
| 408 | ret = fmc_send_cmd(fmdev, CHANL_SET, REG_WR, &payload, |
| 409 | sizeof(payload), NULL, NULL); |
| 410 | if (ret < 0) |
| 411 | return ret; |
| 412 | |
| 413 | fm_tx_set_pwr_lvl(fmdev, tx->pwr_lvl); |
| 414 | fm_tx_set_preemph_filter(fmdev, tx->preemph); |
| 415 | |
| 416 | tx->audio_io = 0x01; /* I2S */ |
| 417 | set_audio_io(fmdev); |
| 418 | |
| 419 | enable_xmit(fmdev, 0x01); /* Enable transmission */ |
| 420 | |
| 421 | tx->aud_mode = FM_STEREO_MODE; |
| 422 | tx->rds.flag = FM_RDS_DISABLE; |
| 423 | |
| 424 | return 0; |
| 425 | } |
| 426 | |