Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/err.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/time.h> |
| 17 | #include <linux/wait.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/dma-mapping.h> |
| 21 | #include <linux/of_device.h> |
| 22 | #include <sound/core.h> |
| 23 | #include <sound/soc.h> |
| 24 | #include <sound/soc-dapm.h> |
| 25 | #include <sound/pcm.h> |
| 26 | #include <sound/initval.h> |
| 27 | #include <sound/control.h> |
| 28 | #include <asm/dma.h> |
Laxminath Kasam | 605b42f | 2017-08-01 22:02:15 +0530 | [diff] [blame] | 29 | #include <dsp/q6voice.h> |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 30 | |
| 31 | #include "msm-pcm-q6-v2.h" |
| 32 | #include "msm-pcm-routing-v2.h" |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 33 | |
| 34 | #define SHARED_MEM_BUF 2 |
| 35 | #define VOIP_MAX_Q_LEN 10 |
| 36 | #define VOIP_MAX_VOC_PKT_SIZE 4096 |
| 37 | #define VOIP_MIN_VOC_PKT_SIZE 320 |
| 38 | |
| 39 | /* Length of the DSP frame info header added to the voc packet. */ |
| 40 | #define DSP_FRAME_HDR_LEN 1 |
| 41 | |
| 42 | #define MODE_IS127 0x2 |
| 43 | #define MODE_4GV_NB 0x3 |
| 44 | #define MODE_4GV_WB 0x4 |
| 45 | #define MODE_AMR 0x5 |
| 46 | #define MODE_AMR_WB 0xD |
| 47 | #define MODE_PCM 0xC |
| 48 | #define MODE_4GV_NW 0xE |
| 49 | #define MODE_G711 0xA |
| 50 | #define MODE_G711A 0xF |
| 51 | |
| 52 | enum msm_audio_g711a_frame_type { |
| 53 | MVS_G711A_SPEECH_GOOD, |
| 54 | MVS_G711A_SID, |
| 55 | MVS_G711A_NO_DATA, |
| 56 | MVS_G711A_ERASURE |
| 57 | }; |
| 58 | |
| 59 | enum msm_audio_g711a_mode { |
| 60 | MVS_G711A_MODE_MULAW, |
| 61 | MVS_G711A_MODE_ALAW |
| 62 | }; |
| 63 | |
| 64 | enum msm_audio_g711_mode { |
| 65 | MVS_G711_MODE_MULAW, |
| 66 | MVS_G711_MODE_ALAW |
| 67 | }; |
| 68 | |
| 69 | #define VOIP_MODE_MAX MODE_G711A |
| 70 | #define VOIP_RATE_MAX 23850 |
| 71 | |
| 72 | enum format { |
| 73 | FORMAT_S16_LE = 2, |
| 74 | FORMAT_SPECIAL = 31, |
| 75 | }; |
| 76 | |
| 77 | |
| 78 | enum amr_rate_type { |
| 79 | AMR_RATE_4750, /* AMR 4.75 kbps */ |
| 80 | AMR_RATE_5150, /* AMR 5.15 kbps */ |
| 81 | AMR_RATE_5900, /* AMR 5.90 kbps */ |
| 82 | AMR_RATE_6700, /* AMR 6.70 kbps */ |
| 83 | AMR_RATE_7400, /* AMR 7.40 kbps */ |
| 84 | AMR_RATE_7950, /* AMR 7.95 kbps */ |
| 85 | AMR_RATE_10200, /* AMR 10.20 kbps */ |
| 86 | AMR_RATE_12200, /* AMR 12.20 kbps */ |
| 87 | AMR_RATE_6600, /* AMR-WB 6.60 kbps */ |
| 88 | AMR_RATE_8850, /* AMR-WB 8.85 kbps */ |
| 89 | AMR_RATE_12650, /* AMR-WB 12.65 kbps */ |
| 90 | AMR_RATE_14250, /* AMR-WB 14.25 kbps */ |
| 91 | AMR_RATE_15850, /* AMR-WB 15.85 kbps */ |
| 92 | AMR_RATE_18250, /* AMR-WB 18.25 kbps */ |
| 93 | AMR_RATE_19850, /* AMR-WB 19.85 kbps */ |
| 94 | AMR_RATE_23050, /* AMR-WB 23.05 kbps */ |
| 95 | AMR_RATE_23850, /* AMR-WB 23.85 kbps */ |
| 96 | AMR_RATE_UNDEF |
| 97 | }; |
| 98 | |
| 99 | enum voip_state { |
| 100 | VOIP_STOPPED, |
| 101 | VOIP_STARTED, |
| 102 | }; |
| 103 | |
| 104 | struct voip_frame_hdr { |
| 105 | uint32_t timestamp; |
| 106 | union { |
| 107 | /* |
| 108 | * Bits 0-3: Frame type |
| 109 | * [optional] Bits 16-19: Frame rate |
| 110 | */ |
| 111 | uint32_t frame_type; |
| 112 | uint32_t packet_rate; |
| 113 | }; |
| 114 | }; |
| 115 | struct voip_frame { |
| 116 | struct voip_frame_hdr frm_hdr; |
| 117 | uint32_t pktlen; |
| 118 | uint8_t voc_pkt[VOIP_MAX_VOC_PKT_SIZE]; |
| 119 | }; |
| 120 | |
| 121 | struct voip_buf_node { |
| 122 | struct list_head list; |
| 123 | struct voip_frame frame; |
| 124 | }; |
| 125 | |
| 126 | struct voip_drv_info { |
| 127 | enum voip_state state; |
| 128 | |
| 129 | struct snd_pcm_substream *playback_substream; |
| 130 | struct snd_pcm_substream *capture_substream; |
| 131 | |
| 132 | struct list_head in_queue; |
| 133 | struct list_head free_in_queue; |
| 134 | |
| 135 | struct list_head out_queue; |
| 136 | struct list_head free_out_queue; |
| 137 | |
| 138 | wait_queue_head_t out_wait; |
| 139 | wait_queue_head_t in_wait; |
| 140 | |
| 141 | struct mutex lock; |
| 142 | |
| 143 | spinlock_t dsp_lock; |
| 144 | spinlock_t dsp_ul_lock; |
| 145 | |
| 146 | bool voip_reset; |
| 147 | uint32_t mode; |
| 148 | uint32_t rate_type; |
| 149 | uint32_t rate; |
| 150 | uint32_t dtx_mode; |
| 151 | |
| 152 | uint8_t capture_start; |
| 153 | uint8_t playback_start; |
| 154 | |
| 155 | uint8_t playback_prepare; |
| 156 | uint8_t capture_prepare; |
| 157 | |
| 158 | unsigned int play_samp_rate; |
| 159 | unsigned int cap_samp_rate; |
| 160 | |
| 161 | unsigned int pcm_size; |
| 162 | unsigned int pcm_count; |
| 163 | unsigned int pcm_playback_irq_pos; /* IRQ position */ |
| 164 | unsigned int pcm_playback_buf_pos; /* position in buffer */ |
| 165 | |
| 166 | unsigned int pcm_capture_size; |
| 167 | unsigned int pcm_capture_count; |
| 168 | unsigned int pcm_capture_irq_pos; /* IRQ position */ |
| 169 | unsigned int pcm_capture_buf_pos; /* position in buffer */ |
| 170 | |
| 171 | uint32_t evrc_min_rate; |
| 172 | uint32_t evrc_max_rate; |
| 173 | }; |
| 174 | |
| 175 | static int voip_get_media_type(uint32_t mode, uint32_t rate_type, |
| 176 | unsigned int samp_rate, |
| 177 | unsigned int *media_type); |
| 178 | static int voip_get_rate_type(uint32_t mode, |
| 179 | uint32_t rate, |
| 180 | uint32_t *rate_type); |
| 181 | static int voip_config_vocoder(struct snd_pcm_substream *substream); |
| 182 | static int msm_voip_mode_config_put(struct snd_kcontrol *kcontrol, |
| 183 | struct snd_ctl_elem_value *ucontrol); |
| 184 | static int msm_voip_mode_config_get(struct snd_kcontrol *kcontrol, |
| 185 | struct snd_ctl_elem_value *ucontrol); |
| 186 | static int msm_voip_rate_config_put(struct snd_kcontrol *kcontrol, |
| 187 | struct snd_ctl_elem_value *ucontrol); |
| 188 | static int msm_voip_evrc_min_max_rate_config_put(struct snd_kcontrol *kcontrol, |
| 189 | struct snd_ctl_elem_value *ucontrol); |
| 190 | static int msm_voip_evrc_min_max_rate_config_get(struct snd_kcontrol *kcontrol, |
| 191 | struct snd_ctl_elem_value *ucontrol); |
| 192 | |
| 193 | static struct voip_drv_info voip_info; |
| 194 | |
| 195 | static struct snd_pcm_hardware msm_pcm_hardware = { |
| 196 | .info = (SNDRV_PCM_INFO_MMAP | |
| 197 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 198 | SNDRV_PCM_INFO_MMAP_VALID | |
| 199 | SNDRV_PCM_INFO_INTERLEAVED), |
| 200 | .formats = SNDRV_PCM_FMTBIT_S16_LE | |
| 201 | SNDRV_PCM_FMTBIT_SPECIAL, |
| 202 | .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | |
| 203 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, |
| 204 | .rate_min = 8000, |
| 205 | .rate_max = 48000, |
| 206 | .channels_min = 1, |
| 207 | .channels_max = 1, |
| 208 | .buffer_bytes_max = sizeof(struct voip_buf_node) * VOIP_MAX_Q_LEN, |
| 209 | .period_bytes_min = VOIP_MIN_VOC_PKT_SIZE, |
| 210 | .period_bytes_max = VOIP_MAX_VOC_PKT_SIZE, |
| 211 | .periods_min = VOIP_MAX_Q_LEN, |
| 212 | .periods_max = VOIP_MAX_Q_LEN, |
| 213 | .fifo_size = 0, |
| 214 | }; |
| 215 | |
| 216 | |
| 217 | static int msm_voip_mute_put(struct snd_kcontrol *kcontrol, |
| 218 | struct snd_ctl_elem_value *ucontrol) |
| 219 | { |
| 220 | int ret = 0; |
| 221 | int mute = ucontrol->value.integer.value[0]; |
| 222 | int ramp_duration = ucontrol->value.integer.value[1]; |
| 223 | |
| 224 | if ((mute < 0) || (mute > 1) || (ramp_duration < 0)) { |
| 225 | pr_err(" %s Invalid arguments", __func__); |
| 226 | |
| 227 | ret = -EINVAL; |
| 228 | goto done; |
| 229 | } |
| 230 | |
| 231 | pr_debug("%s: mute=%d ramp_duration=%d\n", __func__, mute, |
| 232 | ramp_duration); |
| 233 | |
| 234 | voc_set_tx_mute(voc_get_session_id(VOIP_SESSION_NAME), TX_PATH, mute, |
| 235 | ramp_duration); |
| 236 | |
| 237 | done: |
| 238 | return ret; |
| 239 | } |
| 240 | |
| 241 | static int msm_voip_gain_put(struct snd_kcontrol *kcontrol, |
| 242 | struct snd_ctl_elem_value *ucontrol) |
| 243 | { |
| 244 | int ret = 0; |
| 245 | int volume = ucontrol->value.integer.value[0]; |
| 246 | int ramp_duration = ucontrol->value.integer.value[1]; |
| 247 | |
| 248 | if ((volume < 0) || (ramp_duration < 0)) { |
| 249 | pr_err(" %s Invalid arguments", __func__); |
| 250 | |
| 251 | ret = -EINVAL; |
| 252 | goto done; |
| 253 | } |
| 254 | |
| 255 | pr_debug("%s: volume: %d ramp_duration: %d\n", __func__, volume, |
| 256 | ramp_duration); |
| 257 | |
| 258 | voc_set_rx_vol_step(voc_get_session_id(VOIP_SESSION_NAME), |
| 259 | RX_PATH, |
| 260 | volume, |
| 261 | ramp_duration); |
| 262 | |
| 263 | done: |
| 264 | return ret; |
| 265 | } |
| 266 | |
| 267 | static int msm_voip_dtx_mode_put(struct snd_kcontrol *kcontrol, |
| 268 | struct snd_ctl_elem_value *ucontrol) |
| 269 | { |
| 270 | mutex_lock(&voip_info.lock); |
| 271 | |
| 272 | voip_info.dtx_mode = ucontrol->value.integer.value[0]; |
| 273 | |
| 274 | pr_debug("%s: dtx: %d\n", __func__, voip_info.dtx_mode); |
| 275 | |
| 276 | mutex_unlock(&voip_info.lock); |
| 277 | |
| 278 | return 0; |
| 279 | } |
| 280 | static int msm_voip_dtx_mode_get(struct snd_kcontrol *kcontrol, |
| 281 | struct snd_ctl_elem_value *ucontrol) |
| 282 | { |
| 283 | mutex_lock(&voip_info.lock); |
| 284 | |
| 285 | ucontrol->value.integer.value[0] = voip_info.dtx_mode; |
| 286 | |
| 287 | mutex_unlock(&voip_info.lock); |
| 288 | |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | static struct snd_kcontrol_new msm_voip_controls[] = { |
| 293 | SOC_SINGLE_MULTI_EXT("Voip Tx Mute", SND_SOC_NOPM, 0, |
| 294 | MAX_RAMP_DURATION, |
| 295 | 0, 2, NULL, msm_voip_mute_put), |
| 296 | SOC_SINGLE_MULTI_EXT("Voip Rx Gain", SND_SOC_NOPM, 0, |
| 297 | MAX_RAMP_DURATION, |
| 298 | 0, 2, NULL, msm_voip_gain_put), |
| 299 | SOC_SINGLE_EXT("Voip Mode Config", SND_SOC_NOPM, 0, VOIP_MODE_MAX, 0, |
| 300 | msm_voip_mode_config_get, msm_voip_mode_config_put), |
| 301 | SOC_SINGLE_EXT("Voip Rate Config", SND_SOC_NOPM, 0, VOIP_RATE_MAX, 0, |
| 302 | NULL, msm_voip_rate_config_put), |
| 303 | SOC_SINGLE_MULTI_EXT("Voip Evrc Min Max Rate Config", SND_SOC_NOPM, |
| 304 | 0, VOC_1_RATE, 0, 2, |
| 305 | msm_voip_evrc_min_max_rate_config_get, |
| 306 | msm_voip_evrc_min_max_rate_config_put), |
| 307 | SOC_SINGLE_EXT("Voip Dtx Mode", SND_SOC_NOPM, 0, 1, 0, |
| 308 | msm_voip_dtx_mode_get, msm_voip_dtx_mode_put), |
| 309 | }; |
| 310 | |
| 311 | static int msm_pcm_voip_probe(struct snd_soc_platform *platform) |
| 312 | { |
| 313 | snd_soc_add_platform_controls(platform, msm_voip_controls, |
| 314 | ARRAY_SIZE(msm_voip_controls)); |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | /* sample rate supported */ |
| 320 | static unsigned int supported_sample_rates[] = {8000, 16000, 32000, 48000}; |
| 321 | |
| 322 | static void voip_ssr_cb_fn(uint32_t opcode, void *private_data) |
| 323 | { |
| 324 | |
| 325 | /* Notify ASoC to send next playback/Capture to unblock write/read */ |
| 326 | struct voip_drv_info *prtd = private_data; |
| 327 | |
| 328 | if (opcode == 0xFFFFFFFF) { |
| 329 | |
| 330 | prtd->voip_reset = true; |
| 331 | pr_debug("%s: Notify ASoC to send next playback/Capture\n", |
| 332 | __func__); |
| 333 | |
| 334 | prtd->pcm_playback_irq_pos += prtd->pcm_count; |
| 335 | if (prtd->state == VOIP_STARTED) |
| 336 | snd_pcm_period_elapsed(prtd->playback_substream); |
| 337 | wake_up(&prtd->out_wait); |
| 338 | |
| 339 | prtd->pcm_capture_irq_pos += prtd->pcm_capture_count; |
| 340 | if (prtd->state == VOIP_STARTED) |
| 341 | snd_pcm_period_elapsed(prtd->capture_substream); |
| 342 | wake_up(&prtd->in_wait); |
| 343 | |
| 344 | } else { |
| 345 | pr_err("%s: Invalid opcode during reset : %d\n", |
| 346 | __func__, opcode); |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | /* capture path */ |
| 351 | static void voip_process_ul_pkt(uint8_t *voc_pkt, |
| 352 | uint32_t pkt_len, |
| 353 | uint32_t timestamp, |
| 354 | void *private_data) |
| 355 | { |
| 356 | struct voip_buf_node *buf_node = NULL; |
| 357 | struct voip_drv_info *prtd = private_data; |
| 358 | unsigned long dsp_flags; |
| 359 | |
| 360 | if (prtd->capture_substream == NULL) |
| 361 | return; |
| 362 | |
| 363 | /* Copy up-link packet into out_queue. */ |
| 364 | spin_lock_irqsave(&prtd->dsp_ul_lock, dsp_flags); |
| 365 | |
| 366 | /* discarding UL packets till start is received */ |
| 367 | if (!list_empty(&prtd->free_out_queue) && prtd->capture_start) { |
| 368 | buf_node = list_first_entry(&prtd->free_out_queue, |
| 369 | struct voip_buf_node, list); |
| 370 | list_del(&buf_node->list); |
| 371 | switch (prtd->mode) { |
| 372 | case MODE_AMR_WB: |
| 373 | case MODE_AMR: { |
| 374 | /* Remove the DSP frame info header. Header format: |
| 375 | * Bits 0-3: Frame rate |
| 376 | * Bits 4-7: Frame type |
| 377 | */ |
| 378 | buf_node->frame.frm_hdr.timestamp = timestamp; |
| 379 | buf_node->frame.frm_hdr.frame_type = |
| 380 | ((*voc_pkt) & 0xF0) >> 4; |
| 381 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 382 | buf_node->frame.pktlen = pkt_len - DSP_FRAME_HDR_LEN; |
| 383 | memcpy(&buf_node->frame.voc_pkt[0], |
| 384 | voc_pkt, |
| 385 | buf_node->frame.pktlen); |
| 386 | |
| 387 | list_add_tail(&buf_node->list, &prtd->out_queue); |
| 388 | break; |
| 389 | } |
| 390 | case MODE_IS127: |
| 391 | case MODE_4GV_NB: |
| 392 | case MODE_4GV_WB: |
| 393 | case MODE_4GV_NW: { |
| 394 | /* Remove the DSP frame info header. |
| 395 | * Header format: |
| 396 | * Bits 0-3: frame rate |
| 397 | */ |
| 398 | buf_node->frame.frm_hdr.timestamp = timestamp; |
| 399 | buf_node->frame.frm_hdr.packet_rate = (*voc_pkt) & 0x0F; |
| 400 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 401 | buf_node->frame.pktlen = pkt_len - DSP_FRAME_HDR_LEN; |
| 402 | |
| 403 | memcpy(&buf_node->frame.voc_pkt[0], |
| 404 | voc_pkt, |
| 405 | buf_node->frame.pktlen); |
| 406 | |
| 407 | list_add_tail(&buf_node->list, &prtd->out_queue); |
| 408 | break; |
| 409 | } |
| 410 | case MODE_G711: |
| 411 | case MODE_G711A:{ |
| 412 | /* G711 frames are 10ms each, but the DSP works with |
| 413 | * 20ms frames and sends two 10ms frames per buffer. |
| 414 | * Extract the two frames and put them in separate |
| 415 | * buffers. |
| 416 | */ |
| 417 | /* Remove the first DSP frame info header. |
| 418 | * Header format: G711A |
| 419 | * Bits 0-1: Frame type |
| 420 | * Bits 2-3: Frame rate |
| 421 | * |
| 422 | * Header format: G711 |
| 423 | * Bits 2-3: Frame rate |
| 424 | */ |
| 425 | if (prtd->mode == MODE_G711A) |
| 426 | buf_node->frame.frm_hdr.frame_type = |
| 427 | (*voc_pkt) & 0x03; |
| 428 | buf_node->frame.frm_hdr.timestamp = timestamp; |
| 429 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 430 | |
| 431 | /* There are two frames in the buffer. Length of the |
| 432 | * first frame: |
| 433 | */ |
| 434 | buf_node->frame.pktlen = (pkt_len - |
| 435 | 2 * DSP_FRAME_HDR_LEN) / 2; |
| 436 | |
| 437 | memcpy(&buf_node->frame.voc_pkt[0], |
| 438 | voc_pkt, |
| 439 | buf_node->frame.pktlen); |
| 440 | voc_pkt = voc_pkt + buf_node->frame.pktlen; |
| 441 | |
| 442 | list_add_tail(&buf_node->list, &prtd->out_queue); |
| 443 | |
| 444 | /* Get another buffer from the free Q and fill in the |
| 445 | * second frame. |
| 446 | */ |
| 447 | if (!list_empty(&prtd->free_out_queue)) { |
| 448 | buf_node = |
| 449 | list_first_entry(&prtd->free_out_queue, |
| 450 | struct voip_buf_node, |
| 451 | list); |
| 452 | list_del(&buf_node->list); |
| 453 | |
| 454 | /* Remove the second DSP frame info header. |
| 455 | * Header format: |
| 456 | * Bits 0-1: Frame type |
| 457 | * Bits 2-3: Frame rate |
| 458 | */ |
| 459 | |
| 460 | if (prtd->mode == MODE_G711A) |
| 461 | buf_node->frame.frm_hdr.frame_type = |
| 462 | (*voc_pkt) & 0x03; |
| 463 | buf_node->frame.frm_hdr.timestamp = timestamp; |
| 464 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 465 | |
| 466 | /* There are two frames in the buffer. Length |
| 467 | * of the second frame: |
| 468 | */ |
| 469 | buf_node->frame.pktlen = (pkt_len - |
| 470 | 2 * DSP_FRAME_HDR_LEN) / 2; |
| 471 | |
| 472 | memcpy(&buf_node->frame.voc_pkt[0], |
| 473 | voc_pkt, |
| 474 | buf_node->frame.pktlen); |
| 475 | |
| 476 | list_add_tail(&buf_node->list, |
| 477 | &prtd->out_queue); |
| 478 | } else { |
| 479 | /* Drop the second frame */ |
| 480 | pr_err("%s: UL data dropped, read is slow\n", |
| 481 | __func__); |
| 482 | } |
| 483 | break; |
| 484 | } |
| 485 | default: { |
| 486 | buf_node->frame.frm_hdr.timestamp = timestamp; |
| 487 | buf_node->frame.pktlen = pkt_len; |
| 488 | memcpy(&buf_node->frame.voc_pkt[0], |
| 489 | voc_pkt, |
| 490 | buf_node->frame.pktlen); |
| 491 | list_add_tail(&buf_node->list, &prtd->out_queue); |
| 492 | } |
| 493 | } |
| 494 | pr_debug("%s: pkt_len =%d, frame.pktlen=%d, timestamp=%d\n", |
| 495 | __func__, pkt_len, buf_node->frame.pktlen, timestamp); |
| 496 | |
| 497 | if (prtd->mode == MODE_PCM) |
| 498 | prtd->pcm_capture_irq_pos += buf_node->frame.pktlen; |
| 499 | else |
| 500 | prtd->pcm_capture_irq_pos += prtd->pcm_capture_count; |
| 501 | |
| 502 | spin_unlock_irqrestore(&prtd->dsp_ul_lock, dsp_flags); |
| 503 | snd_pcm_period_elapsed(prtd->capture_substream); |
| 504 | } else { |
| 505 | spin_unlock_irqrestore(&prtd->dsp_ul_lock, dsp_flags); |
| 506 | pr_err("UL data dropped\n"); |
| 507 | } |
| 508 | |
| 509 | wake_up(&prtd->out_wait); |
| 510 | } |
| 511 | |
| 512 | /* playback path */ |
| 513 | static void voip_process_dl_pkt(uint8_t *voc_pkt, void *private_data) |
| 514 | { |
| 515 | struct voip_buf_node *buf_node = NULL; |
| 516 | struct voip_drv_info *prtd = private_data; |
| 517 | unsigned long dsp_flags; |
| 518 | uint32_t rate_type; |
| 519 | uint32_t frame_rate; |
| 520 | u32 pkt_len; |
| 521 | u8 *voc_addr = NULL; |
| 522 | |
| 523 | if (prtd->playback_substream == NULL) |
| 524 | return; |
| 525 | |
| 526 | spin_lock_irqsave(&prtd->dsp_lock, dsp_flags); |
| 527 | |
| 528 | if (!list_empty(&prtd->in_queue) && prtd->playback_start) { |
| 529 | buf_node = list_first_entry(&prtd->in_queue, |
| 530 | struct voip_buf_node, list); |
| 531 | list_del(&buf_node->list); |
| 532 | switch (prtd->mode) { |
| 533 | case MODE_AMR: |
| 534 | case MODE_AMR_WB: { |
| 535 | *((uint32_t *)voc_pkt) = buf_node->frame.pktlen + |
| 536 | DSP_FRAME_HDR_LEN; |
| 537 | /* Advance to the header of voip packet */ |
| 538 | voc_pkt = voc_pkt + sizeof(uint32_t); |
| 539 | /* |
| 540 | * Add the DSP frame info header. Header format: |
| 541 | * Bits 0-3: Frame rate |
| 542 | * Bits 4-7: Frame type |
| 543 | */ |
| 544 | *voc_pkt = ((buf_node->frame.frm_hdr.frame_type & |
| 545 | 0x0F) << 4); |
| 546 | frame_rate = (buf_node->frame.frm_hdr.frame_type & |
| 547 | 0xFFFF0000) >> 16; |
| 548 | if (frame_rate) { |
| 549 | if (voip_get_rate_type(prtd->mode, frame_rate, |
| 550 | &rate_type)) { |
| 551 | pr_err("%s(): fail at getting rate_type\n", |
| 552 | __func__); |
| 553 | } else |
| 554 | prtd->rate_type = rate_type; |
| 555 | } |
| 556 | *voc_pkt |= prtd->rate_type & 0x0F; |
| 557 | |
| 558 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 559 | memcpy(voc_pkt, |
| 560 | &buf_node->frame.voc_pkt[0], |
| 561 | buf_node->frame.pktlen); |
| 562 | list_add_tail(&buf_node->list, &prtd->free_in_queue); |
| 563 | break; |
| 564 | } |
| 565 | case MODE_IS127: |
| 566 | case MODE_4GV_NB: |
| 567 | case MODE_4GV_WB: |
| 568 | case MODE_4GV_NW: { |
| 569 | *((uint32_t *)voc_pkt) = buf_node->frame.pktlen + |
| 570 | DSP_FRAME_HDR_LEN; |
| 571 | /* Advance to the header of voip packet */ |
| 572 | voc_pkt = voc_pkt + sizeof(uint32_t); |
| 573 | /* |
| 574 | * Add the DSP frame info header. Header format: |
| 575 | * Bits 0-3 : Frame rate |
| 576 | */ |
| 577 | *voc_pkt = buf_node->frame.frm_hdr.packet_rate & 0x0F; |
| 578 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 579 | |
| 580 | memcpy(voc_pkt, |
| 581 | &buf_node->frame.voc_pkt[0], |
| 582 | buf_node->frame.pktlen); |
| 583 | |
| 584 | list_add_tail(&buf_node->list, &prtd->free_in_queue); |
| 585 | break; |
| 586 | } |
| 587 | case MODE_G711: |
| 588 | case MODE_G711A:{ |
| 589 | /* G711 frames are 10ms each but the DSP expects 20ms |
| 590 | * worth of data, so send two 10ms frames per buffer. |
| 591 | */ |
| 592 | /* Add the first DSP frame info header. Header format: |
| 593 | * Bits 0-1: Frame type |
| 594 | * Bits 2-3: Frame rate |
| 595 | */ |
| 596 | voc_addr = voc_pkt; |
| 597 | voc_pkt = voc_pkt + sizeof(uint32_t); |
| 598 | |
| 599 | *voc_pkt = ((prtd->rate_type & 0x0F) << 2) | |
| 600 | (buf_node->frame.frm_hdr.frame_type & 0x03); |
| 601 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 602 | |
| 603 | pkt_len = buf_node->frame.pktlen + DSP_FRAME_HDR_LEN; |
| 604 | |
| 605 | memcpy(voc_pkt, |
| 606 | &buf_node->frame.voc_pkt[0], |
| 607 | buf_node->frame.pktlen); |
| 608 | voc_pkt = voc_pkt + buf_node->frame.pktlen; |
| 609 | |
| 610 | list_add_tail(&buf_node->list, &prtd->free_in_queue); |
| 611 | |
| 612 | if (!list_empty(&prtd->in_queue)) { |
| 613 | /* Get the second buffer. */ |
| 614 | buf_node = list_first_entry(&prtd->in_queue, |
| 615 | struct voip_buf_node, |
| 616 | list); |
| 617 | list_del(&buf_node->list); |
| 618 | |
| 619 | /* Add the second DSP frame info header. |
| 620 | * Header format: |
| 621 | * Bits 0-1: Frame type |
| 622 | * Bits 2-3: Frame rate |
| 623 | */ |
| 624 | *voc_pkt = ((prtd->rate_type & 0x0F) << 2) | |
| 625 | (buf_node->frame.frm_hdr.frame_type & 0x03); |
| 626 | voc_pkt = voc_pkt + DSP_FRAME_HDR_LEN; |
| 627 | |
| 628 | pkt_len = pkt_len + buf_node->frame.pktlen + |
| 629 | DSP_FRAME_HDR_LEN; |
| 630 | |
| 631 | memcpy(voc_pkt, |
| 632 | &buf_node->frame.voc_pkt[0], |
| 633 | buf_node->frame.pktlen); |
| 634 | |
| 635 | list_add_tail(&buf_node->list, |
| 636 | &prtd->free_in_queue); |
| 637 | } else { |
| 638 | /* Only 10ms worth of data is available, signal |
| 639 | * erasure frame. |
| 640 | */ |
| 641 | *voc_pkt = ((prtd->rate_type & 0x0F) << 2) | |
| 642 | (MVS_G711A_ERASURE & 0x03); |
| 643 | |
| 644 | pkt_len = pkt_len + DSP_FRAME_HDR_LEN; |
| 645 | pr_debug("%s, Only 10ms read, erase 2nd frame\n", |
| 646 | __func__); |
| 647 | } |
| 648 | *((uint32_t *)voc_addr) = pkt_len; |
| 649 | break; |
| 650 | } |
| 651 | default: { |
| 652 | *((uint32_t *)voc_pkt) = buf_node->frame.pktlen; |
| 653 | voc_pkt = voc_pkt + sizeof(uint32_t); |
| 654 | memcpy(voc_pkt, |
| 655 | &buf_node->frame.voc_pkt[0], |
| 656 | buf_node->frame.pktlen); |
| 657 | list_add_tail(&buf_node->list, &prtd->free_in_queue); |
| 658 | } |
| 659 | } |
| 660 | pr_debug("%s: frame.pktlen=%d\n", __func__, |
| 661 | buf_node->frame.pktlen); |
| 662 | |
| 663 | if (prtd->mode == MODE_PCM) |
| 664 | prtd->pcm_playback_irq_pos += buf_node->frame.pktlen; |
| 665 | else |
| 666 | prtd->pcm_playback_irq_pos += prtd->pcm_count; |
| 667 | |
| 668 | spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags); |
| 669 | snd_pcm_period_elapsed(prtd->playback_substream); |
| 670 | } else { |
| 671 | *((uint32_t *)voc_pkt) = 0; |
| 672 | spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags); |
| 673 | pr_err_ratelimited("DL data not available\n"); |
| 674 | } |
| 675 | wake_up(&prtd->in_wait); |
| 676 | } |
| 677 | |
| 678 | static struct snd_pcm_hw_constraint_list constraints_sample_rates = { |
| 679 | .count = ARRAY_SIZE(supported_sample_rates), |
| 680 | .list = supported_sample_rates, |
| 681 | .mask = 0, |
| 682 | }; |
| 683 | |
| 684 | static int msm_pcm_playback_prepare(struct snd_pcm_substream *substream) |
| 685 | { |
| 686 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 687 | struct voip_drv_info *prtd = runtime->private_data; |
| 688 | |
| 689 | prtd->play_samp_rate = runtime->rate; |
| 690 | prtd->pcm_size = snd_pcm_lib_buffer_bytes(substream); |
| 691 | prtd->pcm_count = snd_pcm_lib_period_bytes(substream); |
| 692 | prtd->pcm_playback_irq_pos = 0; |
| 693 | prtd->pcm_playback_buf_pos = 0; |
| 694 | prtd->playback_prepare = 1; |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
| 699 | static int msm_pcm_capture_prepare(struct snd_pcm_substream *substream) |
| 700 | { |
| 701 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 702 | struct voip_drv_info *prtd = runtime->private_data; |
| 703 | int ret = 0; |
| 704 | |
| 705 | prtd->cap_samp_rate = runtime->rate; |
| 706 | prtd->pcm_capture_size = snd_pcm_lib_buffer_bytes(substream); |
| 707 | prtd->pcm_capture_count = snd_pcm_lib_period_bytes(substream); |
| 708 | prtd->pcm_capture_irq_pos = 0; |
| 709 | prtd->pcm_capture_buf_pos = 0; |
| 710 | prtd->capture_prepare = 1; |
| 711 | return ret; |
| 712 | } |
| 713 | |
| 714 | static int msm_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| 715 | { |
| 716 | int ret = 0; |
| 717 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 718 | struct voip_drv_info *prtd = runtime->private_data; |
| 719 | |
| 720 | switch (cmd) { |
| 721 | case SNDRV_PCM_TRIGGER_START: |
| 722 | case SNDRV_PCM_TRIGGER_RESUME: |
| 723 | pr_debug("%s: Trigger start\n", __func__); |
| 724 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| 725 | prtd->capture_start = 1; |
| 726 | else |
| 727 | prtd->playback_start = 1; |
| 728 | break; |
| 729 | case SNDRV_PCM_TRIGGER_STOP: |
| 730 | pr_debug("SNDRV_PCM_TRIGGER_STOP\n"); |
| 731 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 732 | prtd->playback_start = 0; |
| 733 | else |
| 734 | prtd->capture_start = 0; |
| 735 | break; |
| 736 | default: |
| 737 | ret = -EINVAL; |
| 738 | break; |
| 739 | } |
| 740 | |
| 741 | return ret; |
| 742 | } |
| 743 | |
| 744 | static int msm_pcm_open(struct snd_pcm_substream *substream) |
| 745 | { |
| 746 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 747 | struct voip_drv_info *prtd = &voip_info; |
| 748 | int ret = 0; |
| 749 | |
| 750 | pr_debug("%s, VoIP\n", __func__); |
| 751 | mutex_lock(&prtd->lock); |
| 752 | |
| 753 | runtime->hw = msm_pcm_hardware; |
| 754 | |
| 755 | ret = snd_pcm_hw_constraint_list(runtime, 0, |
| 756 | SNDRV_PCM_HW_PARAM_RATE, |
| 757 | &constraints_sample_rates); |
| 758 | if (ret < 0) |
| 759 | pr_debug("snd_pcm_hw_constraint_list failed\n"); |
| 760 | |
| 761 | ret = snd_pcm_hw_constraint_integer(runtime, |
| 762 | SNDRV_PCM_HW_PARAM_PERIODS); |
| 763 | if (ret < 0) { |
| 764 | pr_debug("snd_pcm_hw_constraint_integer failed\n"); |
| 765 | goto err; |
| 766 | } |
| 767 | |
| 768 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 769 | prtd->playback_substream = substream; |
| 770 | else |
| 771 | prtd->capture_substream = substream; |
| 772 | |
| 773 | runtime->private_data = prtd; |
| 774 | err: |
| 775 | mutex_unlock(&prtd->lock); |
| 776 | |
| 777 | return ret; |
| 778 | } |
| 779 | |
| 780 | static int msm_pcm_playback_copy(struct snd_pcm_substream *substream, int a, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 781 | unsigned long hwoff, void __user *buf, unsigned long fbytes) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 782 | { |
| 783 | int ret = 0; |
| 784 | struct voip_buf_node *buf_node = NULL; |
| 785 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 786 | struct voip_drv_info *prtd = runtime->private_data; |
| 787 | unsigned long dsp_flags; |
| 788 | |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 789 | pr_debug("%s: fbytes=%lu\n", __func__, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 790 | |
| 791 | if (prtd->voip_reset) { |
| 792 | pr_debug("%s: RESET event happened during VoIP\n", __func__); |
| 793 | return -ENETRESET; |
| 794 | } |
| 795 | |
| 796 | ret = wait_event_interruptible_timeout(prtd->in_wait, |
| 797 | (!list_empty(&prtd->free_in_queue) || |
| 798 | prtd->state == VOIP_STOPPED), |
| 799 | 1 * HZ); |
| 800 | if (prtd->voip_reset) { |
| 801 | pr_debug("%s: RESET event happened during VoIP\n", __func__); |
| 802 | return -ENETRESET; |
| 803 | } |
| 804 | |
| 805 | if (ret > 0) { |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 806 | if (fbytes <= VOIP_MAX_VOC_PKT_SIZE) { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 807 | spin_lock_irqsave(&prtd->dsp_lock, dsp_flags); |
| 808 | buf_node = |
| 809 | list_first_entry(&prtd->free_in_queue, |
| 810 | struct voip_buf_node, list); |
| 811 | list_del(&buf_node->list); |
| 812 | spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags); |
| 813 | if (prtd->mode == MODE_PCM) { |
| 814 | ret = copy_from_user(&buf_node->frame.voc_pkt, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 815 | buf, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 816 | if (ret) { |
| 817 | pr_err("%s: copy from user failed %d\n", |
| 818 | __func__, ret); |
| 819 | return -EFAULT; |
| 820 | } |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 821 | buf_node->frame.pktlen = fbytes; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 822 | } else { |
| 823 | ret = copy_from_user(&buf_node->frame, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 824 | buf, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 825 | if (ret) { |
| 826 | pr_err("%s: copy from user failed %d\n", |
| 827 | __func__, ret); |
| 828 | return -EFAULT; |
| 829 | } |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 830 | if (buf_node->frame.pktlen >= fbytes) |
| 831 | buf_node->frame.pktlen = fbytes - |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 832 | (sizeof(buf_node->frame.frm_hdr) + |
| 833 | sizeof(buf_node->frame.pktlen)); |
| 834 | } |
| 835 | spin_lock_irqsave(&prtd->dsp_lock, dsp_flags); |
| 836 | list_add_tail(&buf_node->list, &prtd->in_queue); |
| 837 | spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags); |
| 838 | } else { |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 839 | pr_err("%s: Write cnt %lu is > VOIP_MAX_VOC_PKT_SIZE\n", |
| 840 | __func__, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 841 | ret = -ENOMEM; |
| 842 | } |
| 843 | |
| 844 | } else if (ret == 0) { |
| 845 | pr_err("%s: No free DL buffs\n", __func__); |
| 846 | ret = -ETIMEDOUT; |
| 847 | } else { |
| 848 | pr_err("%s: playback copy was interrupted %d\n", __func__, ret); |
| 849 | } |
| 850 | |
| 851 | return ret; |
| 852 | } |
| 853 | static int msm_pcm_capture_copy(struct snd_pcm_substream *substream, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 854 | int channel, unsigned long hwoff, void __user *buf, |
| 855 | unsigned long fbytes) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 856 | { |
| 857 | int ret = 0; |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 858 | struct voip_buf_node *buf_node = NULL; |
| 859 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 860 | struct voip_drv_info *prtd = runtime->private_data; |
| 861 | unsigned long dsp_flags; |
| 862 | int size; |
| 863 | |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 864 | pr_debug("%s: fbytes = %lu\n", __func__, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 865 | |
| 866 | if (prtd->voip_reset) { |
| 867 | pr_debug("%s: RESET event happened during VoIP\n", __func__); |
| 868 | return -ENETRESET; |
| 869 | } |
| 870 | |
| 871 | ret = wait_event_interruptible_timeout(prtd->out_wait, |
| 872 | (!list_empty(&prtd->out_queue) || |
| 873 | prtd->state == VOIP_STOPPED), |
| 874 | 1 * HZ); |
| 875 | |
| 876 | if (prtd->voip_reset) { |
| 877 | pr_debug("%s: RESET event happened during VoIP\n", __func__); |
| 878 | return -ENETRESET; |
| 879 | } |
| 880 | |
| 881 | if (ret > 0) { |
| 882 | |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 883 | if (fbytes <= VOIP_MAX_VOC_PKT_SIZE) { |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 884 | spin_lock_irqsave(&prtd->dsp_ul_lock, dsp_flags); |
| 885 | buf_node = list_first_entry(&prtd->out_queue, |
| 886 | struct voip_buf_node, list); |
| 887 | list_del(&buf_node->list); |
| 888 | spin_unlock_irqrestore(&prtd->dsp_ul_lock, dsp_flags); |
| 889 | if (prtd->mode == MODE_PCM) { |
| 890 | ret = copy_to_user(buf, |
| 891 | &buf_node->frame.voc_pkt, |
| 892 | buf_node->frame.pktlen); |
| 893 | } else { |
| 894 | size = sizeof(buf_node->frame.frm_hdr) + |
| 895 | sizeof(buf_node->frame.pktlen) + |
| 896 | buf_node->frame.pktlen; |
| 897 | |
| 898 | ret = copy_to_user(buf, |
| 899 | &buf_node->frame, |
| 900 | size); |
| 901 | } |
| 902 | if (ret) { |
| 903 | pr_err("%s: Copy to user returned %d\n", |
| 904 | __func__, ret); |
| 905 | ret = -EFAULT; |
| 906 | } |
| 907 | spin_lock_irqsave(&prtd->dsp_ul_lock, dsp_flags); |
| 908 | list_add_tail(&buf_node->list, |
| 909 | &prtd->free_out_queue); |
| 910 | spin_unlock_irqrestore(&prtd->dsp_ul_lock, dsp_flags); |
| 911 | } else { |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 912 | pr_err("%s: Read fbytes %lu > VOIP_MAX_VOC_PKT_SIZE\n", |
| 913 | __func__, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 914 | ret = -ENOMEM; |
| 915 | } |
| 916 | |
| 917 | |
| 918 | } else if (ret == 0) { |
| 919 | pr_err_ratelimited("%s: No UL data available\n", __func__); |
| 920 | ret = -ETIMEDOUT; |
| 921 | } else { |
| 922 | pr_err("%s: Read was interrupted\n", __func__); |
| 923 | ret = -ERESTARTSYS; |
| 924 | } |
| 925 | return ret; |
| 926 | } |
| 927 | static int msm_pcm_copy(struct snd_pcm_substream *substream, int a, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 928 | unsigned long hwoff, void __user *buf, unsigned long fbytes) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 929 | { |
| 930 | int ret = 0; |
| 931 | |
| 932 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 933 | ret = msm_pcm_playback_copy(substream, a, hwoff, buf, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 934 | else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 935 | ret = msm_pcm_capture_copy(substream, a, hwoff, buf, fbytes); |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 936 | |
| 937 | return ret; |
| 938 | } |
| 939 | |
| 940 | static int msm_pcm_close(struct snd_pcm_substream *substream) |
| 941 | { |
| 942 | int ret = 0; |
| 943 | struct list_head *ptr = NULL; |
| 944 | struct list_head *next = NULL; |
| 945 | struct voip_buf_node *buf_node = NULL; |
| 946 | struct snd_dma_buffer *p_dma_buf, *c_dma_buf; |
| 947 | struct snd_pcm_substream *p_substream, *c_substream; |
| 948 | struct snd_pcm_runtime *runtime; |
| 949 | struct voip_drv_info *prtd; |
| 950 | unsigned long dsp_flags; |
| 951 | |
| 952 | if (substream == NULL) { |
| 953 | pr_err("substream is NULL\n"); |
| 954 | return -EINVAL; |
| 955 | } |
| 956 | runtime = substream->runtime; |
| 957 | prtd = runtime->private_data; |
| 958 | |
| 959 | wake_up(&prtd->out_wait); |
| 960 | |
| 961 | mutex_lock(&prtd->lock); |
| 962 | |
| 963 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 964 | prtd->playback_prepare = 0; |
| 965 | else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| 966 | prtd->capture_prepare = 0; |
| 967 | |
| 968 | if (!prtd->playback_prepare && !prtd->capture_prepare) { |
| 969 | if (prtd->state == VOIP_STARTED) { |
| 970 | prtd->voip_reset = false; |
| 971 | prtd->state = VOIP_STOPPED; |
| 972 | voc_end_voice_call( |
| 973 | voc_get_session_id(VOIP_SESSION_NAME)); |
| 974 | voc_register_mvs_cb(NULL, NULL, NULL, prtd); |
| 975 | } |
| 976 | /* release all buffer */ |
| 977 | /* release in_queue and free_in_queue */ |
| 978 | pr_debug("release all buffer\n"); |
| 979 | p_substream = prtd->playback_substream; |
| 980 | if (p_substream == NULL) { |
| 981 | pr_debug("p_substream is NULL\n"); |
| 982 | goto capt; |
| 983 | } |
| 984 | p_dma_buf = &p_substream->dma_buffer; |
| 985 | if (p_dma_buf == NULL) { |
| 986 | pr_debug("p_dma_buf is NULL\n"); |
| 987 | goto capt; |
| 988 | } |
| 989 | if (p_dma_buf->area != NULL) { |
| 990 | spin_lock_irqsave(&prtd->dsp_lock, dsp_flags); |
| 991 | list_for_each_safe(ptr, next, &prtd->in_queue) { |
| 992 | buf_node = list_entry(ptr, |
| 993 | struct voip_buf_node, list); |
| 994 | list_del(&buf_node->list); |
| 995 | } |
| 996 | list_for_each_safe(ptr, next, &prtd->free_in_queue) { |
| 997 | buf_node = list_entry(ptr, |
| 998 | struct voip_buf_node, list); |
| 999 | list_del(&buf_node->list); |
| 1000 | } |
| 1001 | spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags); |
| 1002 | dma_free_coherent(p_substream->pcm->card->dev, |
| 1003 | runtime->hw.buffer_bytes_max, p_dma_buf->area, |
| 1004 | p_dma_buf->addr); |
| 1005 | p_dma_buf->area = NULL; |
| 1006 | } |
| 1007 | /* release out_queue and free_out_queue */ |
| 1008 | capt: c_substream = prtd->capture_substream; |
| 1009 | if (c_substream == NULL) { |
| 1010 | pr_debug("c_substream is NULL\n"); |
| 1011 | goto done; |
| 1012 | } |
| 1013 | c_dma_buf = &c_substream->dma_buffer; |
| 1014 | if (c_substream == NULL) { |
| 1015 | pr_debug("c_dma_buf is NULL.\n"); |
| 1016 | goto done; |
| 1017 | } |
| 1018 | if (c_dma_buf->area != NULL) { |
| 1019 | spin_lock_irqsave(&prtd->dsp_ul_lock, dsp_flags); |
| 1020 | list_for_each_safe(ptr, next, &prtd->out_queue) { |
| 1021 | buf_node = list_entry(ptr, |
| 1022 | struct voip_buf_node, list); |
| 1023 | list_del(&buf_node->list); |
| 1024 | } |
| 1025 | list_for_each_safe(ptr, next, &prtd->free_out_queue) { |
| 1026 | buf_node = list_entry(ptr, |
| 1027 | struct voip_buf_node, list); |
| 1028 | list_del(&buf_node->list); |
| 1029 | } |
| 1030 | spin_unlock_irqrestore(&prtd->dsp_ul_lock, dsp_flags); |
| 1031 | dma_free_coherent(c_substream->pcm->card->dev, |
| 1032 | runtime->hw.buffer_bytes_max, c_dma_buf->area, |
| 1033 | c_dma_buf->addr); |
| 1034 | c_dma_buf->area = NULL; |
| 1035 | } |
| 1036 | done: |
| 1037 | prtd->capture_substream = NULL; |
| 1038 | prtd->playback_substream = NULL; |
| 1039 | } |
| 1040 | mutex_unlock(&prtd->lock); |
| 1041 | |
| 1042 | return ret; |
| 1043 | } |
| 1044 | |
| 1045 | static int voip_config_vocoder(struct snd_pcm_substream *substream) |
| 1046 | { |
| 1047 | int ret = 0; |
| 1048 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1049 | struct voip_drv_info *prtd = runtime->private_data; |
| 1050 | uint32_t media_type = 0; |
| 1051 | uint32_t rate_type = 0; |
| 1052 | uint32_t evrc_min_rate_type = 0; |
| 1053 | uint32_t evrc_max_rate_type = 0; |
| 1054 | |
| 1055 | pr_debug("%s(): mode=%d, playback rate=%d, capture rate=%d\n", |
| 1056 | __func__, prtd->mode, prtd->play_samp_rate, |
| 1057 | prtd->cap_samp_rate); |
| 1058 | |
| 1059 | if ((runtime->format != FORMAT_S16_LE && |
| 1060 | runtime->format != FORMAT_SPECIAL) && |
| 1061 | ((prtd->mode == MODE_AMR) || (prtd->mode == MODE_AMR_WB) || |
| 1062 | (prtd->mode == MODE_IS127) || (prtd->mode == MODE_4GV_NB) || |
| 1063 | (prtd->mode == MODE_4GV_WB) || (prtd->mode == MODE_4GV_NW) || |
| 1064 | (prtd->mode == MODE_G711) || (prtd->mode == MODE_G711A))) { |
| 1065 | pr_err("%s(): mode:%d and format:%u are not matched\n", |
| 1066 | __func__, prtd->mode, (uint32_t)runtime->format); |
| 1067 | |
| 1068 | ret = -EINVAL; |
| 1069 | goto done; |
| 1070 | } |
| 1071 | |
| 1072 | if (runtime->format != FORMAT_S16_LE && (prtd->mode == MODE_PCM)) { |
| 1073 | pr_err("%s(): mode:%d and format:%u are not matched\n", |
| 1074 | __func__, prtd->mode, runtime->format); |
| 1075 | |
| 1076 | ret = -EINVAL; |
| 1077 | goto done; |
| 1078 | } |
| 1079 | |
| 1080 | if ((prtd->mode == MODE_PCM) || |
| 1081 | (prtd->mode == MODE_AMR) || |
| 1082 | (prtd->mode == MODE_AMR_WB) || |
| 1083 | (prtd->mode == MODE_G711) || |
| 1084 | (prtd->mode == MODE_G711A)) { |
| 1085 | ret = voip_get_rate_type(prtd->mode, |
| 1086 | prtd->rate, |
| 1087 | &rate_type); |
| 1088 | if (ret < 0) { |
| 1089 | pr_err("%s(): fail at getting rate_type, ret=%d\n", |
| 1090 | __func__, ret); |
| 1091 | |
| 1092 | ret = -EINVAL; |
| 1093 | goto done; |
| 1094 | } |
| 1095 | prtd->rate_type = rate_type; |
| 1096 | pr_debug("rate_type=%d\n", rate_type); |
| 1097 | |
| 1098 | } else if ((prtd->mode == MODE_IS127) || |
| 1099 | (prtd->mode == MODE_4GV_NB) || |
| 1100 | (prtd->mode == MODE_4GV_WB) || |
| 1101 | (prtd->mode == MODE_4GV_NW)) { |
| 1102 | ret = voip_get_rate_type(prtd->mode, |
| 1103 | prtd->evrc_min_rate, |
| 1104 | &evrc_min_rate_type); |
| 1105 | if (ret < 0) { |
| 1106 | pr_err("%s(): fail at getting min rate, ret=%d\n", |
| 1107 | __func__, ret); |
| 1108 | |
| 1109 | ret = -EINVAL; |
| 1110 | goto done; |
| 1111 | } |
| 1112 | if (evrc_min_rate_type == VOC_0_RATE) |
| 1113 | evrc_min_rate_type = VOC_8_RATE; |
| 1114 | |
| 1115 | ret = voip_get_rate_type(prtd->mode, |
| 1116 | prtd->evrc_max_rate, |
| 1117 | &evrc_max_rate_type); |
| 1118 | if (ret < 0) { |
| 1119 | pr_err("%s(): fail at getting max rate, ret=%d\n", |
| 1120 | __func__, ret); |
| 1121 | |
| 1122 | ret = -EINVAL; |
| 1123 | goto done; |
| 1124 | } |
| 1125 | if (evrc_max_rate_type == VOC_0_RATE) |
| 1126 | evrc_max_rate_type = VOC_1_RATE; |
| 1127 | |
| 1128 | if (evrc_max_rate_type < evrc_min_rate_type) { |
| 1129 | pr_err("%s(): Invalid EVRC min max rates: %d, %d\n", |
| 1130 | __func__, evrc_min_rate_type, |
| 1131 | evrc_max_rate_type); |
| 1132 | |
| 1133 | ret = -EINVAL; |
| 1134 | goto done; |
| 1135 | } |
| 1136 | pr_debug("%s(): min rate=%d, max rate=%d\n", |
| 1137 | __func__, evrc_min_rate_type, evrc_max_rate_type); |
| 1138 | } |
| 1139 | ret = voip_get_media_type(prtd->mode, |
| 1140 | prtd->rate_type, |
| 1141 | prtd->play_samp_rate, |
| 1142 | &media_type); |
| 1143 | if (ret < 0) { |
| 1144 | pr_err("%s(): fail at getting media_type, ret=%d\n", |
| 1145 | __func__, ret); |
| 1146 | |
| 1147 | ret = -EINVAL; |
| 1148 | goto done; |
| 1149 | } |
| 1150 | pr_debug("%s(): media_type=%d\n", __func__, media_type); |
| 1151 | |
| 1152 | if ((prtd->play_samp_rate == 8000 && prtd->cap_samp_rate == 8000) || |
| 1153 | (prtd->play_samp_rate == 16000 && prtd->cap_samp_rate == 16000) || |
| 1154 | (prtd->play_samp_rate == 32000 && prtd->cap_samp_rate == 32000) || |
| 1155 | (prtd->play_samp_rate == 48000 && prtd->cap_samp_rate == 48000)) { |
| 1156 | voc_config_vocoder(media_type, rate_type, |
| 1157 | VSS_NETWORK_ID_VOIP, |
| 1158 | voip_info.dtx_mode, |
| 1159 | evrc_min_rate_type, |
| 1160 | evrc_max_rate_type); |
| 1161 | } else { |
| 1162 | pr_debug("%s: Invalid rate playback %d, capture %d\n", |
| 1163 | __func__, prtd->play_samp_rate, |
| 1164 | prtd->cap_samp_rate); |
| 1165 | |
| 1166 | ret = -EINVAL; |
| 1167 | } |
| 1168 | done: |
| 1169 | |
| 1170 | return ret; |
| 1171 | } |
| 1172 | |
| 1173 | static int msm_pcm_prepare(struct snd_pcm_substream *substream) |
| 1174 | { |
| 1175 | int ret = 0; |
| 1176 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1177 | struct voip_drv_info *prtd = runtime->private_data; |
| 1178 | |
| 1179 | mutex_lock(&prtd->lock); |
| 1180 | |
| 1181 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 1182 | ret = msm_pcm_playback_prepare(substream); |
| 1183 | else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| 1184 | ret = msm_pcm_capture_prepare(substream); |
| 1185 | |
| 1186 | if (prtd->playback_prepare && prtd->capture_prepare |
| 1187 | && (prtd->state != VOIP_STARTED)) { |
| 1188 | ret = voip_config_vocoder(substream); |
| 1189 | if (ret < 0) { |
| 1190 | pr_err("%s(): fail at configuring vocoder for voip, ret=%d\n", |
| 1191 | __func__, ret); |
| 1192 | |
| 1193 | goto done; |
| 1194 | } |
| 1195 | |
| 1196 | /* Initialaizing cb variables */ |
| 1197 | voc_register_mvs_cb(voip_process_ul_pkt, |
| 1198 | voip_process_dl_pkt, |
| 1199 | voip_ssr_cb_fn, prtd); |
| 1200 | |
| 1201 | ret = voc_start_voice_call( |
| 1202 | voc_get_session_id(VOIP_SESSION_NAME)); |
| 1203 | |
| 1204 | if (ret < 0) { |
| 1205 | pr_err("%s: voc_start_voice_call() failed err %d", |
| 1206 | __func__, ret); |
| 1207 | |
| 1208 | goto done; |
| 1209 | } |
| 1210 | prtd->state = VOIP_STARTED; |
| 1211 | } |
| 1212 | done: |
| 1213 | mutex_unlock(&prtd->lock); |
| 1214 | |
| 1215 | return ret; |
| 1216 | } |
| 1217 | |
| 1218 | static snd_pcm_uframes_t |
| 1219 | msm_pcm_playback_pointer(struct snd_pcm_substream *substream) |
| 1220 | { |
| 1221 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1222 | struct voip_drv_info *prtd = runtime->private_data; |
| 1223 | |
| 1224 | pr_debug("%s\n", __func__); |
| 1225 | if (prtd->pcm_playback_irq_pos >= prtd->pcm_size) |
| 1226 | prtd->pcm_playback_irq_pos = 0; |
| 1227 | return bytes_to_frames(runtime, (prtd->pcm_playback_irq_pos)); |
| 1228 | } |
| 1229 | |
| 1230 | static snd_pcm_uframes_t |
| 1231 | msm_pcm_capture_pointer(struct snd_pcm_substream *substream) |
| 1232 | { |
| 1233 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1234 | struct voip_drv_info *prtd = runtime->private_data; |
| 1235 | |
| 1236 | if (prtd->pcm_capture_irq_pos >= prtd->pcm_capture_size) |
| 1237 | prtd->pcm_capture_irq_pos = 0; |
| 1238 | return bytes_to_frames(runtime, (prtd->pcm_capture_irq_pos)); |
| 1239 | } |
| 1240 | |
| 1241 | static snd_pcm_uframes_t msm_pcm_pointer(struct snd_pcm_substream *substream) |
| 1242 | { |
| 1243 | snd_pcm_uframes_t ret = 0; |
| 1244 | |
| 1245 | pr_debug("%s\n", __func__); |
| 1246 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 1247 | ret = msm_pcm_playback_pointer(substream); |
| 1248 | else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| 1249 | ret = msm_pcm_capture_pointer(substream); |
| 1250 | return ret; |
| 1251 | } |
| 1252 | |
| 1253 | static int msm_pcm_mmap(struct snd_pcm_substream *substream, |
| 1254 | struct vm_area_struct *vma) |
| 1255 | { |
| 1256 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1257 | |
| 1258 | pr_debug("%s\n", __func__); |
| 1259 | dma_mmap_coherent(substream->pcm->card->dev, vma, |
| 1260 | runtime->dma_area, |
| 1261 | runtime->dma_addr, |
| 1262 | runtime->dma_bytes); |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
| 1266 | static int msm_pcm_hw_params(struct snd_pcm_substream *substream, |
| 1267 | struct snd_pcm_hw_params *params) |
| 1268 | { |
| 1269 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1270 | struct snd_dma_buffer *dma_buf = &substream->dma_buffer; |
| 1271 | struct voip_buf_node *buf_node = NULL; |
| 1272 | int i = 0, offset = 0; |
| 1273 | |
| 1274 | pr_debug("%s: voip\n", __func__); |
| 1275 | |
| 1276 | mutex_lock(&voip_info.lock); |
| 1277 | |
| 1278 | dma_buf->dev.type = SNDRV_DMA_TYPE_DEV; |
| 1279 | dma_buf->dev.dev = substream->pcm->card->dev; |
| 1280 | dma_buf->private_data = NULL; |
| 1281 | |
| 1282 | dma_buf->area = dma_alloc_coherent(substream->pcm->card->dev, |
| 1283 | runtime->hw.buffer_bytes_max, |
| 1284 | &dma_buf->addr, GFP_KERNEL); |
| 1285 | if (!dma_buf->area) { |
| 1286 | pr_err("%s:MSM VOIP dma_alloc failed\n", __func__); |
| 1287 | mutex_unlock(&voip_info.lock); |
| 1288 | return -ENOMEM; |
| 1289 | } |
| 1290 | |
| 1291 | dma_buf->bytes = runtime->hw.buffer_bytes_max; |
| 1292 | memset(dma_buf->area, 0, runtime->hw.buffer_bytes_max); |
| 1293 | |
| 1294 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 1295 | for (i = 0; i < VOIP_MAX_Q_LEN; i++) { |
| 1296 | buf_node = (void *)dma_buf->area + offset; |
| 1297 | |
| 1298 | list_add_tail(&buf_node->list, |
| 1299 | &voip_info.free_in_queue); |
| 1300 | offset = offset + sizeof(struct voip_buf_node); |
| 1301 | } |
| 1302 | } else { |
| 1303 | for (i = 0; i < VOIP_MAX_Q_LEN; i++) { |
| 1304 | buf_node = (void *) dma_buf->area + offset; |
| 1305 | list_add_tail(&buf_node->list, |
| 1306 | &voip_info.free_out_queue); |
| 1307 | offset = offset + sizeof(struct voip_buf_node); |
| 1308 | } |
| 1309 | } |
| 1310 | |
| 1311 | mutex_unlock(&voip_info.lock); |
| 1312 | |
| 1313 | snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); |
| 1314 | |
| 1315 | return 0; |
| 1316 | } |
| 1317 | |
| 1318 | static int msm_voip_mode_config_get(struct snd_kcontrol *kcontrol, |
| 1319 | struct snd_ctl_elem_value *ucontrol) |
| 1320 | { |
| 1321 | mutex_lock(&voip_info.lock); |
| 1322 | |
| 1323 | ucontrol->value.integer.value[0] = voip_info.mode; |
| 1324 | |
| 1325 | mutex_unlock(&voip_info.lock); |
| 1326 | |
| 1327 | return 0; |
| 1328 | } |
| 1329 | |
| 1330 | static int msm_voip_mode_config_put(struct snd_kcontrol *kcontrol, |
| 1331 | struct snd_ctl_elem_value *ucontrol) |
| 1332 | { |
| 1333 | mutex_lock(&voip_info.lock); |
| 1334 | |
| 1335 | voip_info.mode = ucontrol->value.integer.value[0]; |
| 1336 | |
| 1337 | pr_debug("%s: mode=%d\n", __func__, voip_info.mode); |
| 1338 | |
| 1339 | mutex_unlock(&voip_info.lock); |
| 1340 | |
| 1341 | return 0; |
| 1342 | } |
| 1343 | |
| 1344 | static int msm_voip_rate_config_put(struct snd_kcontrol *kcontrol, |
| 1345 | struct snd_ctl_elem_value *ucontrol) |
| 1346 | { |
| 1347 | int ret = 0; |
| 1348 | int rate = ucontrol->value.integer.value[0]; |
| 1349 | |
| 1350 | mutex_lock(&voip_info.lock); |
| 1351 | |
| 1352 | if (voip_info.rate != rate) { |
| 1353 | voip_info.rate = rate; |
| 1354 | pr_debug("%s: rate=%d\n", __func__, voip_info.rate); |
| 1355 | |
| 1356 | if (voip_info.state == VOIP_STARTED && |
| 1357 | (voip_info.mode == MODE_AMR || |
| 1358 | voip_info.mode == MODE_AMR_WB)) { |
| 1359 | ret = voip_config_vocoder( |
| 1360 | voip_info.capture_substream); |
| 1361 | if (ret) { |
| 1362 | pr_err("%s:Failed to configure vocoder, ret=%d\n", |
| 1363 | __func__, ret); |
| 1364 | |
| 1365 | goto done; |
| 1366 | } |
| 1367 | |
| 1368 | ret = voc_update_amr_vocoder_rate( |
| 1369 | voc_get_session_id(VOIP_SESSION_NAME)); |
| 1370 | if (ret) { |
| 1371 | pr_err("%s:Failed to update AMR rate, ret=%d\n", |
| 1372 | __func__, ret); |
| 1373 | } |
| 1374 | } |
| 1375 | } |
| 1376 | |
| 1377 | done: |
| 1378 | mutex_unlock(&voip_info.lock); |
| 1379 | |
| 1380 | return ret; |
| 1381 | } |
| 1382 | |
| 1383 | static int msm_voip_evrc_min_max_rate_config_get(struct snd_kcontrol *kcontrol, |
| 1384 | struct snd_ctl_elem_value *ucontrol) |
| 1385 | { |
| 1386 | mutex_lock(&voip_info.lock); |
| 1387 | |
| 1388 | ucontrol->value.integer.value[0] = voip_info.evrc_min_rate; |
| 1389 | ucontrol->value.integer.value[1] = voip_info.evrc_max_rate; |
| 1390 | |
| 1391 | mutex_unlock(&voip_info.lock); |
| 1392 | |
| 1393 | return 0; |
| 1394 | } |
| 1395 | |
| 1396 | static int msm_voip_evrc_min_max_rate_config_put(struct snd_kcontrol *kcontrol, |
| 1397 | struct snd_ctl_elem_value *ucontrol) |
| 1398 | { |
| 1399 | mutex_lock(&voip_info.lock); |
| 1400 | |
| 1401 | voip_info.evrc_min_rate = ucontrol->value.integer.value[0]; |
| 1402 | voip_info.evrc_max_rate = ucontrol->value.integer.value[1]; |
| 1403 | |
| 1404 | pr_debug("%s(): evrc_min_rate=%d,evrc_max_rate=%d\n", __func__, |
| 1405 | voip_info.evrc_min_rate, voip_info.evrc_max_rate); |
| 1406 | |
| 1407 | mutex_unlock(&voip_info.lock); |
| 1408 | |
| 1409 | return 0; |
| 1410 | } |
| 1411 | |
| 1412 | static int voip_get_rate_type(uint32_t mode, uint32_t rate, |
| 1413 | uint32_t *rate_type) |
| 1414 | { |
| 1415 | int ret = 0; |
| 1416 | |
| 1417 | switch (mode) { |
| 1418 | case MODE_AMR: { |
| 1419 | switch (rate) { |
| 1420 | case 4750: |
| 1421 | *rate_type = AMR_RATE_4750; |
| 1422 | break; |
| 1423 | case 5150: |
| 1424 | *rate_type = AMR_RATE_5150; |
| 1425 | break; |
| 1426 | case 5900: |
| 1427 | *rate_type = AMR_RATE_5900; |
| 1428 | break; |
| 1429 | case 6700: |
| 1430 | *rate_type = AMR_RATE_6700; |
| 1431 | break; |
| 1432 | case 7400: |
| 1433 | *rate_type = AMR_RATE_7400; |
| 1434 | break; |
| 1435 | case 7950: |
| 1436 | *rate_type = AMR_RATE_7950; |
| 1437 | break; |
| 1438 | case 10200: |
| 1439 | *rate_type = AMR_RATE_10200; |
| 1440 | break; |
| 1441 | case 12200: |
| 1442 | *rate_type = AMR_RATE_12200; |
| 1443 | break; |
| 1444 | default: |
| 1445 | pr_err("wrong rate for AMR NB.\n"); |
| 1446 | ret = -EINVAL; |
| 1447 | break; |
| 1448 | } |
| 1449 | break; |
| 1450 | } |
| 1451 | case MODE_AMR_WB: { |
| 1452 | switch (rate) { |
| 1453 | case 6600: |
| 1454 | *rate_type = AMR_RATE_6600 - AMR_RATE_6600; |
| 1455 | break; |
| 1456 | case 8850: |
| 1457 | *rate_type = AMR_RATE_8850 - AMR_RATE_6600; |
| 1458 | break; |
| 1459 | case 12650: |
| 1460 | *rate_type = AMR_RATE_12650 - AMR_RATE_6600; |
| 1461 | break; |
| 1462 | case 14250: |
| 1463 | *rate_type = AMR_RATE_14250 - AMR_RATE_6600; |
| 1464 | break; |
| 1465 | case 15850: |
| 1466 | *rate_type = AMR_RATE_15850 - AMR_RATE_6600; |
| 1467 | break; |
| 1468 | case 18250: |
| 1469 | *rate_type = AMR_RATE_18250 - AMR_RATE_6600; |
| 1470 | break; |
| 1471 | case 19850: |
| 1472 | *rate_type = AMR_RATE_19850 - AMR_RATE_6600; |
| 1473 | break; |
| 1474 | case 23050: |
| 1475 | *rate_type = AMR_RATE_23050 - AMR_RATE_6600; |
| 1476 | break; |
| 1477 | case 23850: |
| 1478 | *rate_type = AMR_RATE_23850 - AMR_RATE_6600; |
| 1479 | break; |
| 1480 | default: |
| 1481 | pr_err("wrong rate for AMR_WB.\n"); |
| 1482 | ret = -EINVAL; |
| 1483 | break; |
| 1484 | } |
| 1485 | break; |
| 1486 | } |
| 1487 | case MODE_PCM: { |
| 1488 | *rate_type = 0; |
| 1489 | break; |
| 1490 | } |
| 1491 | case MODE_IS127: |
| 1492 | case MODE_4GV_NB: |
| 1493 | case MODE_4GV_WB: { |
| 1494 | switch (rate) { |
| 1495 | case VOC_0_RATE: |
| 1496 | case VOC_8_RATE: |
| 1497 | case VOC_4_RATE: |
| 1498 | case VOC_2_RATE: |
| 1499 | case VOC_1_RATE: |
| 1500 | *rate_type = rate; |
| 1501 | break; |
| 1502 | default: |
| 1503 | pr_err("wrong rate for IS127/4GV_NB/WB.\n"); |
| 1504 | ret = -EINVAL; |
| 1505 | break; |
| 1506 | } |
| 1507 | break; |
| 1508 | } |
| 1509 | case MODE_4GV_NW: { |
| 1510 | switch (rate) { |
| 1511 | case VOC_0_RATE: |
| 1512 | case VOC_8_RATE: |
| 1513 | case VOC_4_RATE: |
| 1514 | case VOC_2_RATE: |
| 1515 | case VOC_1_RATE: |
| 1516 | case VOC_8_RATE_NC: |
| 1517 | *rate_type = rate; |
| 1518 | break; |
| 1519 | default: |
| 1520 | pr_err("wrong rate for 4GV_NW.\n"); |
| 1521 | ret = -EINVAL; |
| 1522 | break; |
| 1523 | } |
| 1524 | break; |
| 1525 | } |
| 1526 | case MODE_G711: |
| 1527 | case MODE_G711A: |
| 1528 | *rate_type = rate; |
| 1529 | break; |
| 1530 | default: |
| 1531 | pr_err("wrong mode type.\n"); |
| 1532 | ret = -EINVAL; |
| 1533 | } |
| 1534 | pr_debug("%s, mode=%d, rate=%u, rate_type=%d\n", |
| 1535 | __func__, mode, rate, *rate_type); |
| 1536 | return ret; |
| 1537 | } |
| 1538 | |
| 1539 | static int voip_get_media_type(uint32_t mode, uint32_t rate_type, |
| 1540 | unsigned int samp_rate, |
| 1541 | unsigned int *media_type) |
| 1542 | { |
| 1543 | int ret = 0; |
| 1544 | |
| 1545 | pr_debug("%s: mode=%d, samp_rate=%d\n", __func__, |
| 1546 | mode, samp_rate); |
| 1547 | switch (mode) { |
| 1548 | case MODE_AMR: |
| 1549 | *media_type = VSS_MEDIA_ID_AMR_NB_MODEM; |
| 1550 | break; |
| 1551 | case MODE_AMR_WB: |
| 1552 | *media_type = VSS_MEDIA_ID_AMR_WB_MODEM; |
| 1553 | break; |
| 1554 | case MODE_PCM: |
| 1555 | if (samp_rate == 8000) |
| 1556 | *media_type = VSS_MEDIA_ID_PCM_8_KHZ; |
| 1557 | else if (samp_rate == 16000) |
| 1558 | *media_type = VSS_MEDIA_ID_PCM_16_KHZ; |
| 1559 | else if (samp_rate == 32000) |
| 1560 | *media_type = VSS_MEDIA_ID_PCM_32_KHZ; |
| 1561 | else |
| 1562 | *media_type = VSS_MEDIA_ID_PCM_48_KHZ; |
| 1563 | break; |
| 1564 | case MODE_IS127: /* EVRC-A */ |
| 1565 | *media_type = VSS_MEDIA_ID_EVRC_MODEM; |
| 1566 | break; |
| 1567 | case MODE_4GV_NB: /* EVRC-B */ |
| 1568 | *media_type = VSS_MEDIA_ID_4GV_NB_MODEM; |
| 1569 | break; |
| 1570 | case MODE_4GV_WB: /* EVRC-WB */ |
| 1571 | *media_type = VSS_MEDIA_ID_4GV_WB_MODEM; |
| 1572 | break; |
| 1573 | case MODE_4GV_NW: /* EVRC-NW */ |
| 1574 | *media_type = VSS_MEDIA_ID_4GV_NW_MODEM; |
| 1575 | break; |
| 1576 | case MODE_G711: |
| 1577 | case MODE_G711A: |
| 1578 | if (rate_type == MVS_G711A_MODE_MULAW) |
| 1579 | *media_type = VSS_MEDIA_ID_G711_MULAW; |
| 1580 | else |
| 1581 | *media_type = VSS_MEDIA_ID_G711_ALAW; |
| 1582 | break; |
| 1583 | default: |
| 1584 | pr_debug(" input mode is not supported\n"); |
| 1585 | ret = -EINVAL; |
| 1586 | } |
| 1587 | |
| 1588 | pr_debug("%s: media_type is 0x%x\n", __func__, *media_type); |
| 1589 | |
| 1590 | return ret; |
| 1591 | } |
| 1592 | |
| 1593 | |
| 1594 | static const struct snd_pcm_ops msm_pcm_ops = { |
| 1595 | .open = msm_pcm_open, |
Meng Wang | ac147b7 | 2017-10-30 16:46:16 +0800 | [diff] [blame] | 1596 | .copy_user = msm_pcm_copy, |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1597 | .hw_params = msm_pcm_hw_params, |
| 1598 | .close = msm_pcm_close, |
| 1599 | .prepare = msm_pcm_prepare, |
| 1600 | .trigger = msm_pcm_trigger, |
| 1601 | .pointer = msm_pcm_pointer, |
| 1602 | .mmap = msm_pcm_mmap, |
| 1603 | }; |
| 1604 | |
| 1605 | static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd) |
| 1606 | { |
| 1607 | struct snd_card *card = rtd->card->snd_card; |
| 1608 | int ret = 0; |
| 1609 | |
| 1610 | pr_debug("msm_asoc_pcm_new\n"); |
| 1611 | if (!card->dev->coherent_dma_mask) |
| 1612 | card->dev->coherent_dma_mask = DMA_BIT_MASK(32); |
| 1613 | return ret; |
| 1614 | } |
| 1615 | |
| 1616 | static struct snd_soc_platform_driver msm_soc_platform = { |
| 1617 | .ops = &msm_pcm_ops, |
| 1618 | .pcm_new = msm_asoc_pcm_new, |
| 1619 | .probe = msm_pcm_voip_probe, |
| 1620 | }; |
| 1621 | |
| 1622 | static int msm_pcm_probe(struct platform_device *pdev) |
| 1623 | { |
| 1624 | int rc; |
| 1625 | |
| 1626 | if (!is_voc_initialized()) { |
| 1627 | pr_debug("%s: voice module not initialized yet, deferring probe()\n", |
| 1628 | __func__); |
| 1629 | |
| 1630 | rc = -EPROBE_DEFER; |
| 1631 | goto done; |
| 1632 | } |
| 1633 | |
| 1634 | rc = voc_alloc_cal_shared_memory(); |
| 1635 | if (rc == -EPROBE_DEFER) { |
| 1636 | pr_debug("%s: memory allocation for calibration deferred %d\n", |
| 1637 | __func__, rc); |
| 1638 | |
| 1639 | goto done; |
| 1640 | } else if (rc < 0) { |
| 1641 | pr_err("%s: memory allocation for calibration failed %d\n", |
| 1642 | __func__, rc); |
| 1643 | } |
| 1644 | |
| 1645 | rc = voc_alloc_voip_shared_memory(); |
| 1646 | if (rc < 0) { |
| 1647 | pr_err("%s: error allocating shared mem err %d\n", |
| 1648 | __func__, rc); |
| 1649 | } |
| 1650 | |
| 1651 | |
| 1652 | pr_debug("%s: dev name %s\n", __func__, dev_name(&pdev->dev)); |
| 1653 | rc = snd_soc_register_platform(&pdev->dev, |
| 1654 | &msm_soc_platform); |
| 1655 | |
| 1656 | done: |
| 1657 | return rc; |
| 1658 | } |
| 1659 | |
| 1660 | static int msm_pcm_remove(struct platform_device *pdev) |
| 1661 | { |
| 1662 | snd_soc_unregister_platform(&pdev->dev); |
| 1663 | return 0; |
| 1664 | } |
| 1665 | |
| 1666 | static const struct of_device_id msm_voip_dt_match[] = { |
| 1667 | {.compatible = "qcom,msm-voip-dsp"}, |
| 1668 | {} |
| 1669 | }; |
| 1670 | MODULE_DEVICE_TABLE(of, msm_voip_dt_match); |
| 1671 | |
| 1672 | static struct platform_driver msm_pcm_driver = { |
| 1673 | .driver = { |
| 1674 | .name = "msm-voip-dsp", |
| 1675 | .owner = THIS_MODULE, |
| 1676 | .of_match_table = msm_voip_dt_match, |
| 1677 | }, |
| 1678 | .probe = msm_pcm_probe, |
| 1679 | .remove = msm_pcm_remove, |
| 1680 | }; |
| 1681 | |
Laxminath Kasam | 8b1366a | 2017-10-05 01:44:16 +0530 | [diff] [blame] | 1682 | int __init msm_pcm_voip_init(void) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1683 | { |
| 1684 | memset(&voip_info, 0, sizeof(voip_info)); |
| 1685 | voip_info.mode = MODE_PCM; |
| 1686 | mutex_init(&voip_info.lock); |
| 1687 | |
| 1688 | spin_lock_init(&voip_info.dsp_lock); |
| 1689 | spin_lock_init(&voip_info.dsp_ul_lock); |
| 1690 | |
| 1691 | init_waitqueue_head(&voip_info.out_wait); |
| 1692 | init_waitqueue_head(&voip_info.in_wait); |
| 1693 | |
| 1694 | INIT_LIST_HEAD(&voip_info.in_queue); |
| 1695 | INIT_LIST_HEAD(&voip_info.free_in_queue); |
| 1696 | INIT_LIST_HEAD(&voip_info.out_queue); |
| 1697 | INIT_LIST_HEAD(&voip_info.free_out_queue); |
| 1698 | |
| 1699 | return platform_driver_register(&msm_pcm_driver); |
| 1700 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1701 | |
Asish Bhattacharya | 5faacb3 | 2017-12-04 17:23:15 +0530 | [diff] [blame] | 1702 | void msm_pcm_voip_exit(void) |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1703 | { |
| 1704 | platform_driver_unregister(&msm_pcm_driver); |
| 1705 | } |
Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1706 | |
| 1707 | MODULE_DESCRIPTION("PCM module platform driver"); |
| 1708 | MODULE_LICENSE("GPL v2"); |