1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * wm_adsp.c -- Wolfson ADSP support 4 * 5 * Copyright 2012 Wolfson Microelectronics plc 6 * 7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 8 */ 9 10 #include <linux/ctype.h> 11 #include <linux/module.h> 12 #include <linux/moduleparam.h> 13 #include <linux/init.h> 14 #include <linux/delay.h> 15 #include <linux/firmware.h> 16 #include <linux/list.h> 17 #include <linux/pm.h> 18 #include <linux/regmap.h> 19 #include <linux/regulator/consumer.h> 20 #include <linux/slab.h> 21 #include <linux/vmalloc.h> 22 #include <linux/workqueue.h> 23 #include <linux/debugfs.h> 24 #include <sound/core.h> 25 #include <sound/pcm.h> 26 #include <sound/pcm_params.h> 27 #include <sound/soc.h> 28 #include <sound/jack.h> 29 #include <sound/initval.h> 30 #include <sound/tlv.h> 31 32 #include "wm_adsp.h" 33 34 #define adsp_crit(_dsp, fmt, ...) \ 35 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 36 #define adsp_err(_dsp, fmt, ...) \ 37 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 38 #define adsp_warn(_dsp, fmt, ...) \ 39 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 40 #define adsp_info(_dsp, fmt, ...) \ 41 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 42 #define adsp_dbg(_dsp, fmt, ...) \ 43 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 44 45 #define compr_err(_obj, fmt, ...) \ 46 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 47 ##__VA_ARGS__) 48 #define compr_dbg(_obj, fmt, ...) \ 49 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 50 ##__VA_ARGS__) 51 52 #define ADSP_MAX_STD_CTRL_SIZE 512 53 54 static const struct cs_dsp_client_ops wm_adsp1_client_ops; 55 static const struct cs_dsp_client_ops wm_adsp2_client_ops; 56 57 #define WM_ADSP_FW_MBC_VSS 0 58 #define WM_ADSP_FW_HIFI 1 59 #define WM_ADSP_FW_TX 2 60 #define WM_ADSP_FW_TX_SPK 3 61 #define WM_ADSP_FW_RX 4 62 #define WM_ADSP_FW_RX_ANC 5 63 #define WM_ADSP_FW_CTRL 6 64 #define WM_ADSP_FW_ASR 7 65 #define WM_ADSP_FW_TRACE 8 66 #define WM_ADSP_FW_SPK_PROT 9 67 #define WM_ADSP_FW_SPK_CALI 10 68 #define WM_ADSP_FW_SPK_DIAG 11 69 #define WM_ADSP_FW_MISC 12 70 71 #define WM_ADSP_NUM_FW 13 72 73 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = { 74 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS", 75 [WM_ADSP_FW_HIFI] = "MasterHiFi", 76 [WM_ADSP_FW_TX] = "Tx", 77 [WM_ADSP_FW_TX_SPK] = "Tx Speaker", 78 [WM_ADSP_FW_RX] = "Rx", 79 [WM_ADSP_FW_RX_ANC] = "Rx ANC", 80 [WM_ADSP_FW_CTRL] = "Voice Ctrl", 81 [WM_ADSP_FW_ASR] = "ASR Assist", 82 [WM_ADSP_FW_TRACE] = "Dbg Trace", 83 [WM_ADSP_FW_SPK_PROT] = "Protection", 84 [WM_ADSP_FW_SPK_CALI] = "Calibration", 85 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic", 86 [WM_ADSP_FW_MISC] = "Misc", 87 }; 88 89 struct wm_adsp_system_config_xm_hdr { 90 __be32 sys_enable; 91 __be32 fw_id; 92 __be32 fw_rev; 93 __be32 boot_status; 94 __be32 watchdog; 95 __be32 dma_buffer_size; 96 __be32 rdma[6]; 97 __be32 wdma[8]; 98 __be32 build_job_name[3]; 99 __be32 build_job_number; 100 } __packed; 101 102 struct wm_halo_system_config_xm_hdr { 103 __be32 halo_heartbeat; 104 __be32 build_job_name[3]; 105 __be32 build_job_number; 106 } __packed; 107 108 struct wm_adsp_alg_xm_struct { 109 __be32 magic; 110 __be32 smoothing; 111 __be32 threshold; 112 __be32 host_buf_ptr; 113 __be32 start_seq; 114 __be32 high_water_mark; 115 __be32 low_water_mark; 116 __be64 smoothed_power; 117 } __packed; 118 119 struct wm_adsp_host_buf_coeff_v1 { 120 __be32 host_buf_ptr; /* Host buffer pointer */ 121 __be32 versions; /* Version numbers */ 122 __be32 name[4]; /* The buffer name */ 123 } __packed; 124 125 struct wm_adsp_buffer { 126 __be32 buf1_base; /* Base addr of first buffer area */ 127 __be32 buf1_size; /* Size of buf1 area in DSP words */ 128 __be32 buf2_base; /* Base addr of 2nd buffer area */ 129 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ 130 __be32 buf3_base; /* Base addr of buf3 area */ 131 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ 132 __be32 high_water_mark; /* Point at which IRQ is asserted */ 133 __be32 irq_count; /* bits 1-31 count IRQ assertions */ 134 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ 135 __be32 next_write_index; /* word index of next write */ 136 __be32 next_read_index; /* word index of next read */ 137 __be32 error; /* error if any */ 138 __be32 oldest_block_index; /* word index of oldest surviving */ 139 __be32 requested_rewind; /* how many blocks rewind was done */ 140 __be32 reserved_space; /* internal */ 141 __be32 min_free; /* min free space since stream start */ 142 __be32 blocks_written[2]; /* total blocks written (64 bit) */ 143 __be32 words_written[2]; /* total words written (64 bit) */ 144 } __packed; 145 146 struct wm_adsp_compr; 147 148 struct wm_adsp_compr_buf { 149 struct list_head list; 150 struct wm_adsp *dsp; 151 struct wm_adsp_compr *compr; 152 153 struct wm_adsp_buffer_region *regions; 154 u32 host_buf_ptr; 155 156 u32 error; 157 u32 irq_count; 158 int read_index; 159 int avail; 160 int host_buf_mem_type; 161 162 char *name; 163 }; 164 165 struct wm_adsp_compr { 166 struct list_head list; 167 struct wm_adsp *dsp; 168 struct wm_adsp_compr_buf *buf; 169 170 struct snd_compr_stream *stream; 171 struct snd_compressed_buffer size; 172 173 u32 *raw_buf; 174 unsigned int copied_total; 175 176 unsigned int sample_rate; 177 178 const char *name; 179 }; 180 181 #define WM_ADSP_MIN_FRAGMENTS 1 182 #define WM_ADSP_MAX_FRAGMENTS 256 183 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE) 184 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE) 185 186 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7 187 188 #define HOST_BUFFER_FIELD(field) \ 189 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32)) 190 191 #define ALG_XM_FIELD(field) \ 192 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32)) 193 194 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1 195 196 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00 197 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8 198 199 static int wm_adsp_buffer_init(struct wm_adsp *dsp); 200 static int wm_adsp_buffer_free(struct wm_adsp *dsp); 201 202 struct wm_adsp_buffer_region { 203 unsigned int offset; 204 unsigned int cumulative_size; 205 unsigned int mem_type; 206 unsigned int base_addr; 207 }; 208 209 struct wm_adsp_buffer_region_def { 210 unsigned int mem_type; 211 unsigned int base_offset; 212 unsigned int size_offset; 213 }; 214 215 static const struct wm_adsp_buffer_region_def default_regions[] = { 216 { 217 .mem_type = WMFW_ADSP2_XM, 218 .base_offset = HOST_BUFFER_FIELD(buf1_base), 219 .size_offset = HOST_BUFFER_FIELD(buf1_size), 220 }, 221 { 222 .mem_type = WMFW_ADSP2_XM, 223 .base_offset = HOST_BUFFER_FIELD(buf2_base), 224 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), 225 }, 226 { 227 .mem_type = WMFW_ADSP2_YM, 228 .base_offset = HOST_BUFFER_FIELD(buf3_base), 229 .size_offset = HOST_BUFFER_FIELD(buf_total_size), 230 }, 231 }; 232 233 struct wm_adsp_fw_caps { 234 u32 id; 235 struct snd_codec_desc desc; 236 int num_regions; 237 const struct wm_adsp_buffer_region_def *region_defs; 238 }; 239 240 static const struct wm_adsp_fw_caps ctrl_caps[] = { 241 { 242 .id = SND_AUDIOCODEC_BESPOKE, 243 .desc = { 244 .max_ch = 8, 245 .sample_rates = { 16000 }, 246 .num_sample_rates = 1, 247 .formats = SNDRV_PCM_FMTBIT_S16_LE, 248 }, 249 .num_regions = ARRAY_SIZE(default_regions), 250 .region_defs = default_regions, 251 }, 252 }; 253 254 static const struct wm_adsp_fw_caps trace_caps[] = { 255 { 256 .id = SND_AUDIOCODEC_BESPOKE, 257 .desc = { 258 .max_ch = 8, 259 .sample_rates = { 260 4000, 8000, 11025, 12000, 16000, 22050, 261 24000, 32000, 44100, 48000, 64000, 88200, 262 96000, 176400, 192000 263 }, 264 .num_sample_rates = 15, 265 .formats = SNDRV_PCM_FMTBIT_S16_LE, 266 }, 267 .num_regions = ARRAY_SIZE(default_regions), 268 .region_defs = default_regions, 269 }, 270 }; 271 272 static const struct { 273 const char *file; 274 int compr_direction; 275 int num_caps; 276 const struct wm_adsp_fw_caps *caps; 277 bool voice_trigger; 278 } wm_adsp_fw[WM_ADSP_NUM_FW] = { 279 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" }, 280 [WM_ADSP_FW_HIFI] = { .file = "hifi" }, 281 [WM_ADSP_FW_TX] = { .file = "tx" }, 282 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" }, 283 [WM_ADSP_FW_RX] = { .file = "rx" }, 284 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" }, 285 [WM_ADSP_FW_CTRL] = { 286 .file = "ctrl", 287 .compr_direction = SND_COMPRESS_CAPTURE, 288 .num_caps = ARRAY_SIZE(ctrl_caps), 289 .caps = ctrl_caps, 290 .voice_trigger = true, 291 }, 292 [WM_ADSP_FW_ASR] = { .file = "asr" }, 293 [WM_ADSP_FW_TRACE] = { 294 .file = "trace", 295 .compr_direction = SND_COMPRESS_CAPTURE, 296 .num_caps = ARRAY_SIZE(trace_caps), 297 .caps = trace_caps, 298 }, 299 [WM_ADSP_FW_SPK_PROT] = { 300 .file = "spk-prot", 301 .compr_direction = SND_COMPRESS_CAPTURE, 302 .num_caps = ARRAY_SIZE(trace_caps), 303 .caps = trace_caps, 304 }, 305 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" }, 306 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" }, 307 [WM_ADSP_FW_MISC] = { .file = "misc" }, 308 }; 309 310 struct wm_coeff_ctl { 311 const char *name; 312 struct cs_dsp_coeff_ctl *cs_ctl; 313 struct soc_bytes_ext bytes_ext; 314 struct work_struct work; 315 }; 316 317 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol, 318 struct snd_ctl_elem_value *ucontrol) 319 { 320 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 321 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 322 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 323 324 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw; 325 326 return 0; 327 } 328 EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 329 330 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, 331 struct snd_ctl_elem_value *ucontrol) 332 { 333 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 334 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 335 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 336 int ret = 1; 337 338 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw) 339 return 0; 340 341 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW) 342 return -EINVAL; 343 344 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock); 345 346 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list)) 347 ret = -EBUSY; 348 else 349 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0]; 350 351 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock); 352 353 return ret; 354 } 355 EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 356 357 const struct soc_enum wm_adsp_fw_enum[] = { 358 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 359 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 360 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 361 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 362 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 363 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 364 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 365 }; 366 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 367 368 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext) 369 { 370 return container_of(ext, struct wm_coeff_ctl, bytes_ext); 371 } 372 373 static int wm_coeff_info(struct snd_kcontrol *kctl, 374 struct snd_ctl_elem_info *uinfo) 375 { 376 struct soc_bytes_ext *bytes_ext = 377 (struct soc_bytes_ext *)kctl->private_value; 378 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 379 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 380 381 switch (cs_ctl->type) { 382 case WMFW_CTL_TYPE_ACKED: 383 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 384 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE; 385 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE; 386 uinfo->value.integer.step = 1; 387 uinfo->count = 1; 388 break; 389 default: 390 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 391 uinfo->count = cs_ctl->len; 392 break; 393 } 394 395 return 0; 396 } 397 398 static int wm_coeff_put(struct snd_kcontrol *kctl, 399 struct snd_ctl_elem_value *ucontrol) 400 { 401 struct soc_bytes_ext *bytes_ext = 402 (struct soc_bytes_ext *)kctl->private_value; 403 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 404 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 405 char *p = ucontrol->value.bytes.data; 406 int ret = 0; 407 408 mutex_lock(&cs_ctl->dsp->pwr_lock); 409 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 410 mutex_unlock(&cs_ctl->dsp->pwr_lock); 411 412 return ret; 413 } 414 415 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 416 const unsigned int __user *bytes, unsigned int size) 417 { 418 struct soc_bytes_ext *bytes_ext = 419 (struct soc_bytes_ext *)kctl->private_value; 420 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 421 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 422 void *scratch; 423 int ret = 0; 424 425 scratch = vmalloc(size); 426 if (!scratch) 427 return -ENOMEM; 428 429 if (copy_from_user(scratch, bytes, size)) { 430 ret = -EFAULT; 431 } else { 432 mutex_lock(&cs_ctl->dsp->pwr_lock); 433 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size); 434 mutex_unlock(&cs_ctl->dsp->pwr_lock); 435 } 436 vfree(scratch); 437 438 return ret; 439 } 440 441 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 442 struct snd_ctl_elem_value *ucontrol) 443 { 444 struct soc_bytes_ext *bytes_ext = 445 (struct soc_bytes_ext *)kctl->private_value; 446 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 447 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 448 unsigned int val = ucontrol->value.integer.value[0]; 449 int ret; 450 451 if (val == 0) 452 return 0; /* 0 means no event */ 453 454 mutex_lock(&cs_ctl->dsp->pwr_lock); 455 456 if (cs_ctl->enabled) 457 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 458 else 459 ret = -EPERM; 460 461 mutex_unlock(&cs_ctl->dsp->pwr_lock); 462 463 if (ret < 0) 464 return ret; 465 466 return 1; 467 } 468 469 static int wm_coeff_get(struct snd_kcontrol *kctl, 470 struct snd_ctl_elem_value *ucontrol) 471 { 472 struct soc_bytes_ext *bytes_ext = 473 (struct soc_bytes_ext *)kctl->private_value; 474 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 475 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 476 char *p = ucontrol->value.bytes.data; 477 int ret; 478 479 mutex_lock(&cs_ctl->dsp->pwr_lock); 480 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 481 mutex_unlock(&cs_ctl->dsp->pwr_lock); 482 483 return ret; 484 } 485 486 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 487 unsigned int __user *bytes, unsigned int size) 488 { 489 struct soc_bytes_ext *bytes_ext = 490 (struct soc_bytes_ext *)kctl->private_value; 491 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 492 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 493 int ret = 0; 494 495 mutex_lock(&cs_ctl->dsp->pwr_lock); 496 497 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 498 499 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 500 ret = -EFAULT; 501 502 mutex_unlock(&cs_ctl->dsp->pwr_lock); 503 504 return ret; 505 } 506 507 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 508 struct snd_ctl_elem_value *ucontrol) 509 { 510 /* 511 * Although it's not useful to read an acked control, we must satisfy 512 * user-side assumptions that all controls are readable and that a 513 * write of the same value should be filtered out (it's valid to send 514 * the same event number again to the firmware). We therefore return 0, 515 * meaning "no event" so valid event numbers will always be a change 516 */ 517 ucontrol->value.integer.value[0] = 0; 518 519 return 0; 520 } 521 522 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 523 { 524 unsigned int out, rd, wr, vol; 525 526 if (len > ADSP_MAX_STD_CTRL_SIZE) { 527 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 528 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 529 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 530 531 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 532 } else { 533 rd = SNDRV_CTL_ELEM_ACCESS_READ; 534 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 535 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 536 537 out = 0; 538 } 539 540 if (in) { 541 out |= rd; 542 if (in & WMFW_CTL_FLAG_WRITEABLE) 543 out |= wr; 544 if (in & WMFW_CTL_FLAG_VOLATILE) 545 out |= vol; 546 } else { 547 out |= rd | wr | vol; 548 } 549 550 return out; 551 } 552 553 static void wm_adsp_ctl_work(struct work_struct *work) 554 { 555 struct wm_coeff_ctl *ctl = container_of(work, 556 struct wm_coeff_ctl, 557 work); 558 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 559 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 560 struct wm_adsp, 561 cs_dsp); 562 struct snd_kcontrol_new *kcontrol; 563 564 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 565 if (!kcontrol) 566 return; 567 568 kcontrol->name = ctl->name; 569 kcontrol->info = wm_coeff_info; 570 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 571 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 572 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 573 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 574 575 switch (cs_ctl->type) { 576 case WMFW_CTL_TYPE_ACKED: 577 kcontrol->get = wm_coeff_get_acked; 578 kcontrol->put = wm_coeff_put_acked; 579 break; 580 default: 581 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 582 ctl->bytes_ext.max = cs_ctl->len; 583 ctl->bytes_ext.get = wm_coeff_tlv_get; 584 ctl->bytes_ext.put = wm_coeff_tlv_put; 585 } else { 586 kcontrol->get = wm_coeff_get; 587 kcontrol->put = wm_coeff_put; 588 } 589 break; 590 } 591 592 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 593 594 kfree(kcontrol); 595 } 596 597 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 598 { 599 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 600 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 601 struct wm_coeff_ctl *ctl; 602 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 603 const char *region_name; 604 int ret; 605 606 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 607 return 0; 608 609 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 610 if (!region_name) { 611 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 612 return -EINVAL; 613 } 614 615 switch (cs_dsp->fw_ver) { 616 case 0: 617 case 1: 618 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 619 "%s %s %x", cs_dsp->name, region_name, 620 cs_ctl->alg_region.alg); 621 break; 622 case 2: 623 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 624 "%s%c %.12s %x", cs_dsp->name, *region_name, 625 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 626 break; 627 default: 628 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 629 "%s %.12s %x", cs_dsp->name, 630 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 631 break; 632 } 633 634 if (cs_ctl->subname) { 635 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 636 int skip = 0; 637 638 if (dsp->component->name_prefix) 639 avail -= strlen(dsp->component->name_prefix) + 1; 640 641 /* Truncate the subname from the start if it is too long */ 642 if (cs_ctl->subname_len > avail) 643 skip = cs_ctl->subname_len - avail; 644 645 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 646 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 647 } 648 649 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 650 if (!ctl) 651 return -ENOMEM; 652 ctl->cs_ctl = cs_ctl; 653 654 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 655 if (!ctl->name) { 656 ret = -ENOMEM; 657 goto err_ctl; 658 } 659 660 cs_ctl->priv = ctl; 661 662 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 663 schedule_work(&ctl->work); 664 665 return 0; 666 667 err_ctl: 668 kfree(ctl); 669 670 return ret; 671 } 672 673 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 674 { 675 struct wm_coeff_ctl *ctl = cs_ctl->priv; 676 677 cancel_work_sync(&ctl->work); 678 679 kfree(ctl->name); 680 kfree(ctl); 681 } 682 683 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 684 unsigned int alg, void *buf, size_t len) 685 { 686 struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 687 struct wm_coeff_ctl *ctl; 688 int ret; 689 690 mutex_lock(&dsp->cs_dsp.pwr_lock); 691 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 692 mutex_unlock(&dsp->cs_dsp.pwr_lock); 693 694 if (ret < 0) 695 return ret; 696 697 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS)) 698 return 0; 699 700 ctl = cs_ctl->priv; 701 702 return snd_soc_component_notify_control(dsp->component, ctl->name); 703 } 704 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 705 706 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 707 unsigned int alg, void *buf, size_t len) 708 { 709 int ret; 710 711 mutex_lock(&dsp->cs_dsp.pwr_lock); 712 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 713 0, buf, len); 714 mutex_unlock(&dsp->cs_dsp.pwr_lock); 715 716 return ret; 717 } 718 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 719 720 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 721 const struct firmware *wmfw_firmware, 722 char *wmfw_filename, 723 const struct firmware *coeff_firmware, 724 char *coeff_filename) 725 { 726 if (wmfw_firmware) 727 release_firmware(wmfw_firmware); 728 kfree(wmfw_filename); 729 730 if (coeff_firmware) 731 release_firmware(coeff_firmware); 732 kfree(coeff_filename); 733 } 734 735 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 736 const struct firmware **firmware, char **filename, 737 const char *dir, const char *system_name, 738 const char *asoc_component_prefix, 739 const char *filetype) 740 { 741 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 742 char *s, c; 743 int ret = 0; 744 745 if (system_name && asoc_component_prefix) 746 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 747 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 748 asoc_component_prefix, filetype); 749 else if (system_name) 750 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 751 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name, 752 filetype); 753 else 754 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name, 755 wm_adsp_fw[dsp->fw].file, filetype); 756 757 if (*filename == NULL) 758 return -ENOMEM; 759 760 /* 761 * Make sure that filename is lower-case and any non alpha-numeric 762 * characters except full stop and forward slash are replaced with 763 * hyphens. 764 */ 765 s = *filename; 766 while (*s) { 767 c = *s; 768 if (isalnum(c)) 769 *s = tolower(c); 770 else if ((c != '.') && (c != '/')) 771 *s = '-'; 772 s++; 773 } 774 775 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 776 if (ret != 0) { 777 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 778 kfree(*filename); 779 *filename = NULL; 780 } else { 781 adsp_dbg(dsp, "Found '%s'\n", *filename); 782 } 783 784 return ret; 785 } 786 787 static const char *cirrus_dir = "cirrus/"; 788 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 789 const struct firmware **wmfw_firmware, 790 char **wmfw_filename, 791 const struct firmware **coeff_firmware, 792 char **coeff_filename) 793 { 794 const char *system_name = dsp->system_name; 795 const char *asoc_component_prefix = dsp->component->name_prefix; 796 int ret = 0; 797 798 if (system_name && asoc_component_prefix) { 799 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 800 cirrus_dir, system_name, 801 asoc_component_prefix, "wmfw")) { 802 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 803 cirrus_dir, system_name, 804 asoc_component_prefix, "bin"); 805 return 0; 806 } 807 } 808 809 if (system_name) { 810 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 811 cirrus_dir, system_name, 812 NULL, "wmfw")) { 813 if (asoc_component_prefix) 814 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 815 cirrus_dir, system_name, 816 asoc_component_prefix, "bin"); 817 818 if (!*coeff_firmware) 819 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 820 cirrus_dir, system_name, 821 NULL, "bin"); 822 return 0; 823 } 824 } 825 826 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 827 "", NULL, NULL, "wmfw")) { 828 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 829 "", NULL, NULL, "bin"); 830 return 0; 831 } 832 833 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 834 cirrus_dir, NULL, NULL, "wmfw"); 835 if (!ret) { 836 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 837 cirrus_dir, NULL, NULL, "bin"); 838 return 0; 839 } 840 841 if (dsp->wmfw_optional) { 842 if (system_name) { 843 if (asoc_component_prefix) 844 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 845 cirrus_dir, system_name, 846 asoc_component_prefix, "bin"); 847 848 if (!*coeff_firmware) 849 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 850 cirrus_dir, system_name, 851 NULL, "bin"); 852 } 853 854 if (!*coeff_firmware) 855 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 856 "", NULL, NULL, "bin"); 857 858 if (!*coeff_firmware) 859 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 860 cirrus_dir, NULL, NULL, "bin"); 861 862 return 0; 863 } 864 865 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 866 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file, 867 system_name, asoc_component_prefix); 868 869 return -ENOENT; 870 } 871 872 static int wm_adsp_common_init(struct wm_adsp *dsp) 873 { 874 char *p; 875 876 INIT_LIST_HEAD(&dsp->compr_list); 877 INIT_LIST_HEAD(&dsp->buffer_list); 878 879 if (!dsp->fwf_name) { 880 p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL); 881 if (!p) 882 return -ENOMEM; 883 884 dsp->fwf_name = p; 885 for (; *p != 0; ++p) 886 *p = tolower(*p); 887 } 888 889 return 0; 890 } 891 892 int wm_adsp1_init(struct wm_adsp *dsp) 893 { 894 int ret; 895 896 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 897 898 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 899 if (ret) 900 return ret; 901 902 return wm_adsp_common_init(dsp); 903 } 904 EXPORT_SYMBOL_GPL(wm_adsp1_init); 905 906 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 907 struct snd_kcontrol *kcontrol, 908 int event) 909 { 910 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 911 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 912 struct wm_adsp *dsp = &dsps[w->shift]; 913 int ret = 0; 914 char *wmfw_filename = NULL; 915 const struct firmware *wmfw_firmware = NULL; 916 char *coeff_filename = NULL; 917 const struct firmware *coeff_firmware = NULL; 918 919 dsp->component = component; 920 921 switch (event) { 922 case SND_SOC_DAPM_POST_PMU: 923 ret = wm_adsp_request_firmware_files(dsp, 924 &wmfw_firmware, &wmfw_filename, 925 &coeff_firmware, &coeff_filename); 926 if (ret) 927 break; 928 929 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 930 wmfw_firmware, wmfw_filename, 931 coeff_firmware, coeff_filename, 932 wm_adsp_fw_text[dsp->fw]); 933 934 wm_adsp_release_firmware_files(dsp, 935 wmfw_firmware, wmfw_filename, 936 coeff_firmware, coeff_filename); 937 break; 938 case SND_SOC_DAPM_PRE_PMD: 939 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 940 break; 941 default: 942 break; 943 } 944 945 return ret; 946 } 947 EXPORT_SYMBOL_GPL(wm_adsp1_event); 948 949 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 950 { 951 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 952 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 953 struct wm_adsp *dsp = &dsps[w->shift]; 954 955 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 956 } 957 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 958 959 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 960 struct snd_ctl_elem_value *ucontrol) 961 { 962 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 963 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 964 struct soc_mixer_control *mc = 965 (struct soc_mixer_control *)kcontrol->private_value; 966 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 967 968 ucontrol->value.integer.value[0] = dsp->preloaded; 969 970 return 0; 971 } 972 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 973 974 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 975 struct snd_ctl_elem_value *ucontrol) 976 { 977 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 978 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 979 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 980 struct soc_mixer_control *mc = 981 (struct soc_mixer_control *)kcontrol->private_value; 982 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 983 char preload[32]; 984 985 if (dsp->preloaded == ucontrol->value.integer.value[0]) 986 return 0; 987 988 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 989 990 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 991 snd_soc_component_force_enable_pin(component, preload); 992 else 993 snd_soc_component_disable_pin(component, preload); 994 995 snd_soc_dapm_sync(dapm); 996 997 flush_work(&dsp->boot_work); 998 999 dsp->preloaded = ucontrol->value.integer.value[0]; 1000 1001 if (dsp->toggle_preload) { 1002 snd_soc_component_disable_pin(component, preload); 1003 snd_soc_dapm_sync(dapm); 1004 } 1005 1006 return 1; 1007 } 1008 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 1009 1010 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 1011 { 1012 int ret = 0; 1013 char *wmfw_filename = NULL; 1014 const struct firmware *wmfw_firmware = NULL; 1015 char *coeff_filename = NULL; 1016 const struct firmware *coeff_firmware = NULL; 1017 1018 if (load_firmware) { 1019 ret = wm_adsp_request_firmware_files(dsp, 1020 &wmfw_firmware, &wmfw_filename, 1021 &coeff_firmware, &coeff_filename); 1022 if (ret) 1023 return ret; 1024 } 1025 1026 ret = cs_dsp_power_up(&dsp->cs_dsp, 1027 wmfw_firmware, wmfw_filename, 1028 coeff_firmware, coeff_filename, 1029 wm_adsp_fw_text[dsp->fw]); 1030 1031 wm_adsp_release_firmware_files(dsp, 1032 wmfw_firmware, wmfw_filename, 1033 coeff_firmware, coeff_filename); 1034 1035 return ret; 1036 } 1037 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1038 1039 void wm_adsp_power_down(struct wm_adsp *dsp) 1040 { 1041 cs_dsp_power_down(&dsp->cs_dsp); 1042 } 1043 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1044 1045 static void wm_adsp_boot_work(struct work_struct *work) 1046 { 1047 struct wm_adsp *dsp = container_of(work, 1048 struct wm_adsp, 1049 boot_work); 1050 1051 wm_adsp_power_up(dsp, true); 1052 } 1053 1054 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1055 struct snd_kcontrol *kcontrol, int event) 1056 { 1057 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1058 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1059 struct wm_adsp *dsp = &dsps[w->shift]; 1060 1061 switch (event) { 1062 case SND_SOC_DAPM_PRE_PMU: 1063 queue_work(system_unbound_wq, &dsp->boot_work); 1064 break; 1065 case SND_SOC_DAPM_PRE_PMD: 1066 wm_adsp_power_down(dsp); 1067 break; 1068 default: 1069 break; 1070 } 1071 1072 return 0; 1073 } 1074 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1075 1076 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1077 { 1078 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1079 1080 if (!dsp->pre_run) 1081 return 0; 1082 1083 return (*dsp->pre_run)(dsp); 1084 } 1085 1086 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1087 { 1088 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1089 1090 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1091 return wm_adsp_buffer_init(dsp); 1092 1093 return 0; 1094 } 1095 1096 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1097 { 1098 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1099 1100 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1101 wm_adsp_buffer_free(dsp); 1102 1103 dsp->fatal_error = false; 1104 } 1105 1106 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1107 struct snd_kcontrol *kcontrol, int event) 1108 { 1109 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1110 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1111 struct wm_adsp *dsp = &dsps[w->shift]; 1112 int ret = 0; 1113 1114 switch (event) { 1115 case SND_SOC_DAPM_POST_PMU: 1116 flush_work(&dsp->boot_work); 1117 ret = cs_dsp_run(&dsp->cs_dsp); 1118 break; 1119 case SND_SOC_DAPM_PRE_PMD: 1120 cs_dsp_stop(&dsp->cs_dsp); 1121 break; 1122 default: 1123 break; 1124 } 1125 1126 return ret; 1127 } 1128 EXPORT_SYMBOL_GPL(wm_adsp_event); 1129 1130 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1131 { 1132 char preload[32]; 1133 1134 if (!dsp->cs_dsp.no_core_startstop) { 1135 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1136 snd_soc_component_disable_pin(component, preload); 1137 } 1138 1139 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1140 1141 dsp->component = component; 1142 1143 return 0; 1144 } 1145 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1146 1147 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1148 { 1149 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1150 1151 return 0; 1152 } 1153 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1154 1155 int wm_adsp2_init(struct wm_adsp *dsp) 1156 { 1157 int ret; 1158 1159 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1160 1161 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1162 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1163 1164 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1165 if (ret) 1166 return ret; 1167 1168 return wm_adsp_common_init(dsp); 1169 } 1170 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1171 1172 int wm_halo_init(struct wm_adsp *dsp) 1173 { 1174 int ret; 1175 1176 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1177 1178 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1179 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1180 1181 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1182 if (ret) 1183 return ret; 1184 1185 return wm_adsp_common_init(dsp); 1186 } 1187 EXPORT_SYMBOL_GPL(wm_halo_init); 1188 1189 void wm_adsp2_remove(struct wm_adsp *dsp) 1190 { 1191 cs_dsp_remove(&dsp->cs_dsp); 1192 } 1193 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1194 1195 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1196 { 1197 return compr->buf != NULL; 1198 } 1199 1200 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1201 { 1202 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1203 1204 if (compr->dsp->fatal_error) 1205 return -EINVAL; 1206 1207 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1208 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1209 buf = tmp; 1210 break; 1211 } 1212 } 1213 1214 if (!buf) 1215 return -EINVAL; 1216 1217 compr->buf = buf; 1218 buf->compr = compr; 1219 1220 return 0; 1221 } 1222 1223 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1224 { 1225 if (!compr) 1226 return; 1227 1228 /* Wake the poll so it can see buffer is no longer attached */ 1229 if (compr->stream) 1230 snd_compr_fragment_elapsed(compr->stream); 1231 1232 if (wm_adsp_compr_attached(compr)) { 1233 compr->buf->compr = NULL; 1234 compr->buf = NULL; 1235 } 1236 } 1237 1238 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1239 { 1240 struct wm_adsp_compr *compr, *tmp; 1241 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1242 int ret = 0; 1243 1244 mutex_lock(&dsp->cs_dsp.pwr_lock); 1245 1246 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1247 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1248 asoc_rtd_to_codec(rtd, 0)->name); 1249 ret = -ENXIO; 1250 goto out; 1251 } 1252 1253 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1254 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1255 asoc_rtd_to_codec(rtd, 0)->name); 1256 ret = -EINVAL; 1257 goto out; 1258 } 1259 1260 list_for_each_entry(tmp, &dsp->compr_list, list) { 1261 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) { 1262 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1263 asoc_rtd_to_codec(rtd, 0)->name); 1264 ret = -EBUSY; 1265 goto out; 1266 } 1267 } 1268 1269 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1270 if (!compr) { 1271 ret = -ENOMEM; 1272 goto out; 1273 } 1274 1275 compr->dsp = dsp; 1276 compr->stream = stream; 1277 compr->name = asoc_rtd_to_codec(rtd, 0)->name; 1278 1279 list_add_tail(&compr->list, &dsp->compr_list); 1280 1281 stream->runtime->private_data = compr; 1282 1283 out: 1284 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1285 1286 return ret; 1287 } 1288 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1289 1290 int wm_adsp_compr_free(struct snd_soc_component *component, 1291 struct snd_compr_stream *stream) 1292 { 1293 struct wm_adsp_compr *compr = stream->runtime->private_data; 1294 struct wm_adsp *dsp = compr->dsp; 1295 1296 mutex_lock(&dsp->cs_dsp.pwr_lock); 1297 1298 wm_adsp_compr_detach(compr); 1299 list_del(&compr->list); 1300 1301 kfree(compr->raw_buf); 1302 kfree(compr); 1303 1304 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1305 1306 return 0; 1307 } 1308 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1309 1310 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1311 struct snd_compr_params *params) 1312 { 1313 struct wm_adsp_compr *compr = stream->runtime->private_data; 1314 struct wm_adsp *dsp = compr->dsp; 1315 const struct wm_adsp_fw_caps *caps; 1316 const struct snd_codec_desc *desc; 1317 int i, j; 1318 1319 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1320 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1321 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1322 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1323 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1324 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1325 params->buffer.fragment_size, 1326 params->buffer.fragments); 1327 1328 return -EINVAL; 1329 } 1330 1331 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1332 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1333 desc = &caps->desc; 1334 1335 if (caps->id != params->codec.id) 1336 continue; 1337 1338 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1339 if (desc->max_ch < params->codec.ch_out) 1340 continue; 1341 } else { 1342 if (desc->max_ch < params->codec.ch_in) 1343 continue; 1344 } 1345 1346 if (!(desc->formats & (1 << params->codec.format))) 1347 continue; 1348 1349 for (j = 0; j < desc->num_sample_rates; ++j) 1350 if (desc->sample_rates[j] == params->codec.sample_rate) 1351 return 0; 1352 } 1353 1354 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1355 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1356 params->codec.sample_rate, params->codec.format); 1357 return -EINVAL; 1358 } 1359 1360 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1361 { 1362 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1363 } 1364 1365 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1366 struct snd_compr_stream *stream, 1367 struct snd_compr_params *params) 1368 { 1369 struct wm_adsp_compr *compr = stream->runtime->private_data; 1370 unsigned int size; 1371 int ret; 1372 1373 ret = wm_adsp_compr_check_params(stream, params); 1374 if (ret) 1375 return ret; 1376 1377 compr->size = params->buffer; 1378 1379 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1380 compr->size.fragment_size, compr->size.fragments); 1381 1382 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1383 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1384 if (!compr->raw_buf) 1385 return -ENOMEM; 1386 1387 compr->sample_rate = params->codec.sample_rate; 1388 1389 return 0; 1390 } 1391 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1392 1393 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1394 struct snd_compr_stream *stream, 1395 struct snd_compr_caps *caps) 1396 { 1397 struct wm_adsp_compr *compr = stream->runtime->private_data; 1398 int fw = compr->dsp->fw; 1399 int i; 1400 1401 if (wm_adsp_fw[fw].caps) { 1402 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1403 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1404 1405 caps->num_codecs = i; 1406 caps->direction = wm_adsp_fw[fw].compr_direction; 1407 1408 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1409 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1410 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1411 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1412 } 1413 1414 return 0; 1415 } 1416 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1417 1418 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1419 unsigned int field_offset, u32 *data) 1420 { 1421 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1422 buf->host_buf_ptr + field_offset, data); 1423 } 1424 1425 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1426 unsigned int field_offset, u32 data) 1427 { 1428 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1429 buf->host_buf_ptr + field_offset, 1430 data); 1431 } 1432 1433 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1434 { 1435 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1436 struct wm_adsp_buffer_region *region; 1437 u32 offset = 0; 1438 int i, ret; 1439 1440 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1441 GFP_KERNEL); 1442 if (!buf->regions) 1443 return -ENOMEM; 1444 1445 for (i = 0; i < caps->num_regions; ++i) { 1446 region = &buf->regions[i]; 1447 1448 region->offset = offset; 1449 region->mem_type = caps->region_defs[i].mem_type; 1450 1451 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1452 ®ion->base_addr); 1453 if (ret < 0) 1454 goto err; 1455 1456 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1457 &offset); 1458 if (ret < 0) 1459 goto err; 1460 1461 region->cumulative_size = offset; 1462 1463 compr_dbg(buf, 1464 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1465 i, region->mem_type, region->base_addr, 1466 region->offset, region->cumulative_size); 1467 } 1468 1469 return 0; 1470 1471 err: 1472 kfree(buf->regions); 1473 return ret; 1474 } 1475 1476 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1477 { 1478 buf->irq_count = 0xFFFFFFFF; 1479 buf->read_index = -1; 1480 buf->avail = 0; 1481 } 1482 1483 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1484 { 1485 struct wm_adsp_compr_buf *buf; 1486 1487 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1488 if (!buf) 1489 return NULL; 1490 1491 buf->dsp = dsp; 1492 1493 wm_adsp_buffer_clear(buf); 1494 1495 return buf; 1496 } 1497 1498 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1499 { 1500 struct cs_dsp_alg_region *alg_region; 1501 struct wm_adsp_compr_buf *buf; 1502 u32 xmalg, addr, magic; 1503 int i, ret; 1504 1505 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1506 if (!alg_region) { 1507 adsp_err(dsp, "No algorithm region found\n"); 1508 return -EINVAL; 1509 } 1510 1511 xmalg = dsp->sys_config_size / sizeof(__be32); 1512 1513 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1514 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1515 if (ret < 0) 1516 return ret; 1517 1518 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1519 return -ENODEV; 1520 1521 buf = wm_adsp_buffer_alloc(dsp); 1522 if (!buf) 1523 return -ENOMEM; 1524 1525 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1526 for (i = 0; i < 5; ++i) { 1527 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1528 &buf->host_buf_ptr); 1529 if (ret < 0) 1530 goto err; 1531 1532 if (buf->host_buf_ptr) 1533 break; 1534 1535 usleep_range(1000, 2000); 1536 } 1537 1538 if (!buf->host_buf_ptr) { 1539 ret = -EIO; 1540 goto err; 1541 } 1542 1543 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1544 1545 ret = wm_adsp_buffer_populate(buf); 1546 if (ret < 0) 1547 goto err; 1548 1549 list_add_tail(&buf->list, &dsp->buffer_list); 1550 1551 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1552 1553 return 0; 1554 1555 err: 1556 kfree(buf); 1557 1558 return ret; 1559 } 1560 1561 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1562 { 1563 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1564 struct wm_adsp_compr_buf *buf; 1565 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1566 unsigned int version = 0; 1567 int ret, i; 1568 1569 for (i = 0; i < 5; ++i) { 1570 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1571 min(cs_ctl->len, sizeof(coeff_v1))); 1572 if (ret < 0) 1573 return ret; 1574 1575 if (coeff_v1.host_buf_ptr) 1576 break; 1577 1578 usleep_range(1000, 2000); 1579 } 1580 1581 if (!coeff_v1.host_buf_ptr) { 1582 adsp_err(dsp, "Failed to acquire host buffer\n"); 1583 return -EIO; 1584 } 1585 1586 buf = wm_adsp_buffer_alloc(dsp); 1587 if (!buf) 1588 return -ENOMEM; 1589 1590 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1591 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1592 1593 ret = wm_adsp_buffer_populate(buf); 1594 if (ret < 0) 1595 goto err; 1596 1597 /* 1598 * v0 host_buffer coefficients didn't have versioning, so if the 1599 * control is one word, assume version 0. 1600 */ 1601 if (cs_ctl->len == 4) 1602 goto done; 1603 1604 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1605 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1606 1607 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1608 adsp_err(dsp, 1609 "Host buffer coeff ver %u > supported version %u\n", 1610 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1611 ret = -EINVAL; 1612 goto err; 1613 } 1614 1615 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1616 1617 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1618 (char *)&coeff_v1.name); 1619 1620 done: 1621 list_add_tail(&buf->list, &dsp->buffer_list); 1622 1623 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1624 buf->host_buf_ptr, version); 1625 1626 return version; 1627 1628 err: 1629 kfree(buf); 1630 1631 return ret; 1632 } 1633 1634 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1635 { 1636 struct cs_dsp_coeff_ctl *cs_ctl; 1637 int ret; 1638 1639 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1640 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1641 continue; 1642 1643 if (!cs_ctl->enabled) 1644 continue; 1645 1646 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1647 if (ret < 0) { 1648 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1649 goto error; 1650 } else if (ret == 0) { 1651 /* Only one buffer supported for version 0 */ 1652 return 0; 1653 } 1654 } 1655 1656 if (list_empty(&dsp->buffer_list)) { 1657 /* Fall back to legacy support */ 1658 ret = wm_adsp_buffer_parse_legacy(dsp); 1659 if (ret == -ENODEV) 1660 adsp_info(dsp, "Legacy support not available\n"); 1661 else if (ret) 1662 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1663 } 1664 1665 return 0; 1666 1667 error: 1668 wm_adsp_buffer_free(dsp); 1669 return ret; 1670 } 1671 1672 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1673 { 1674 struct wm_adsp_compr_buf *buf, *tmp; 1675 1676 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1677 wm_adsp_compr_detach(buf->compr); 1678 1679 kfree(buf->name); 1680 kfree(buf->regions); 1681 list_del(&buf->list); 1682 kfree(buf); 1683 } 1684 1685 return 0; 1686 } 1687 1688 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1689 { 1690 int ret; 1691 1692 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1693 if (ret < 0) { 1694 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1695 return ret; 1696 } 1697 if (buf->error != 0) { 1698 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1699 return -EIO; 1700 } 1701 1702 return 0; 1703 } 1704 1705 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1706 struct snd_compr_stream *stream, int cmd) 1707 { 1708 struct wm_adsp_compr *compr = stream->runtime->private_data; 1709 struct wm_adsp *dsp = compr->dsp; 1710 int ret = 0; 1711 1712 compr_dbg(compr, "Trigger: %d\n", cmd); 1713 1714 mutex_lock(&dsp->cs_dsp.pwr_lock); 1715 1716 switch (cmd) { 1717 case SNDRV_PCM_TRIGGER_START: 1718 if (!wm_adsp_compr_attached(compr)) { 1719 ret = wm_adsp_compr_attach(compr); 1720 if (ret < 0) { 1721 compr_err(compr, "Failed to link buffer and stream: %d\n", 1722 ret); 1723 break; 1724 } 1725 } 1726 1727 ret = wm_adsp_buffer_get_error(compr->buf); 1728 if (ret < 0) 1729 break; 1730 1731 /* Trigger the IRQ at one fragment of data */ 1732 ret = wm_adsp_buffer_write(compr->buf, 1733 HOST_BUFFER_FIELD(high_water_mark), 1734 wm_adsp_compr_frag_words(compr)); 1735 if (ret < 0) { 1736 compr_err(compr, "Failed to set high water mark: %d\n", 1737 ret); 1738 break; 1739 } 1740 break; 1741 case SNDRV_PCM_TRIGGER_STOP: 1742 if (wm_adsp_compr_attached(compr)) 1743 wm_adsp_buffer_clear(compr->buf); 1744 break; 1745 default: 1746 ret = -EINVAL; 1747 break; 1748 } 1749 1750 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1751 1752 return ret; 1753 } 1754 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1755 1756 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1757 { 1758 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1759 1760 return buf->regions[last_region].cumulative_size; 1761 } 1762 1763 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1764 { 1765 u32 next_read_index, next_write_index; 1766 int write_index, read_index, avail; 1767 int ret; 1768 1769 /* Only sync read index if we haven't already read a valid index */ 1770 if (buf->read_index < 0) { 1771 ret = wm_adsp_buffer_read(buf, 1772 HOST_BUFFER_FIELD(next_read_index), 1773 &next_read_index); 1774 if (ret < 0) 1775 return ret; 1776 1777 read_index = sign_extend32(next_read_index, 23); 1778 1779 if (read_index < 0) { 1780 compr_dbg(buf, "Avail check on unstarted stream\n"); 1781 return 0; 1782 } 1783 1784 buf->read_index = read_index; 1785 } 1786 1787 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1788 &next_write_index); 1789 if (ret < 0) 1790 return ret; 1791 1792 write_index = sign_extend32(next_write_index, 23); 1793 1794 avail = write_index - buf->read_index; 1795 if (avail < 0) 1796 avail += wm_adsp_buffer_size(buf); 1797 1798 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1799 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1800 1801 buf->avail = avail; 1802 1803 return 0; 1804 } 1805 1806 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1807 { 1808 struct wm_adsp_compr_buf *buf; 1809 struct wm_adsp_compr *compr; 1810 int ret = 0; 1811 1812 mutex_lock(&dsp->cs_dsp.pwr_lock); 1813 1814 if (list_empty(&dsp->buffer_list)) { 1815 ret = -ENODEV; 1816 goto out; 1817 } 1818 1819 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1820 1821 list_for_each_entry(buf, &dsp->buffer_list, list) { 1822 compr = buf->compr; 1823 1824 ret = wm_adsp_buffer_get_error(buf); 1825 if (ret < 0) 1826 goto out_notify; /* Wake poll to report error */ 1827 1828 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1829 &buf->irq_count); 1830 if (ret < 0) { 1831 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1832 goto out; 1833 } 1834 1835 ret = wm_adsp_buffer_update_avail(buf); 1836 if (ret < 0) { 1837 compr_err(buf, "Error reading avail: %d\n", ret); 1838 goto out; 1839 } 1840 1841 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1842 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1843 1844 out_notify: 1845 if (compr && compr->stream) 1846 snd_compr_fragment_elapsed(compr->stream); 1847 } 1848 1849 out: 1850 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1851 1852 return ret; 1853 } 1854 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1855 1856 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1857 { 1858 if (buf->irq_count & 0x01) 1859 return 0; 1860 1861 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1862 1863 buf->irq_count |= 0x01; 1864 1865 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1866 buf->irq_count); 1867 } 1868 1869 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1870 struct snd_compr_stream *stream, 1871 struct snd_compr_tstamp *tstamp) 1872 { 1873 struct wm_adsp_compr *compr = stream->runtime->private_data; 1874 struct wm_adsp *dsp = compr->dsp; 1875 struct wm_adsp_compr_buf *buf; 1876 int ret = 0; 1877 1878 compr_dbg(compr, "Pointer request\n"); 1879 1880 mutex_lock(&dsp->cs_dsp.pwr_lock); 1881 1882 buf = compr->buf; 1883 1884 if (dsp->fatal_error || !buf || buf->error) { 1885 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1886 ret = -EIO; 1887 goto out; 1888 } 1889 1890 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1891 ret = wm_adsp_buffer_update_avail(buf); 1892 if (ret < 0) { 1893 compr_err(compr, "Error reading avail: %d\n", ret); 1894 goto out; 1895 } 1896 1897 /* 1898 * If we really have less than 1 fragment available tell the 1899 * DSP to inform us once a whole fragment is available. 1900 */ 1901 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1902 ret = wm_adsp_buffer_get_error(buf); 1903 if (ret < 0) { 1904 if (buf->error) 1905 snd_compr_stop_error(stream, 1906 SNDRV_PCM_STATE_XRUN); 1907 goto out; 1908 } 1909 1910 ret = wm_adsp_buffer_reenable_irq(buf); 1911 if (ret < 0) { 1912 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1913 ret); 1914 goto out; 1915 } 1916 } 1917 } 1918 1919 tstamp->copied_total = compr->copied_total; 1920 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1921 tstamp->sampling_rate = compr->sample_rate; 1922 1923 out: 1924 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1925 1926 return ret; 1927 } 1928 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1929 1930 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1931 { 1932 struct wm_adsp_compr_buf *buf = compr->buf; 1933 unsigned int adsp_addr; 1934 int mem_type, nwords, max_read; 1935 int i, ret; 1936 1937 /* Calculate read parameters */ 1938 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1939 if (buf->read_index < buf->regions[i].cumulative_size) 1940 break; 1941 1942 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1943 return -EINVAL; 1944 1945 mem_type = buf->regions[i].mem_type; 1946 adsp_addr = buf->regions[i].base_addr + 1947 (buf->read_index - buf->regions[i].offset); 1948 1949 max_read = wm_adsp_compr_frag_words(compr); 1950 nwords = buf->regions[i].cumulative_size - buf->read_index; 1951 1952 if (nwords > target) 1953 nwords = target; 1954 if (nwords > buf->avail) 1955 nwords = buf->avail; 1956 if (nwords > max_read) 1957 nwords = max_read; 1958 if (!nwords) 1959 return 0; 1960 1961 /* Read data from DSP */ 1962 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1963 nwords, (__be32 *)compr->raw_buf); 1964 if (ret < 0) 1965 return ret; 1966 1967 cs_dsp_remove_padding(compr->raw_buf, nwords); 1968 1969 /* update read index to account for words read */ 1970 buf->read_index += nwords; 1971 if (buf->read_index == wm_adsp_buffer_size(buf)) 1972 buf->read_index = 0; 1973 1974 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1975 buf->read_index); 1976 if (ret < 0) 1977 return ret; 1978 1979 /* update avail to account for words read */ 1980 buf->avail -= nwords; 1981 1982 return nwords; 1983 } 1984 1985 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1986 char __user *buf, size_t count) 1987 { 1988 struct wm_adsp *dsp = compr->dsp; 1989 int ntotal = 0; 1990 int nwords, nbytes; 1991 1992 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1993 1994 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1995 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1996 return -EIO; 1997 } 1998 1999 count /= CS_DSP_DATA_WORD_SIZE; 2000 2001 do { 2002 nwords = wm_adsp_buffer_capture_block(compr, count); 2003 if (nwords < 0) { 2004 compr_err(compr, "Failed to capture block: %d\n", 2005 nwords); 2006 return nwords; 2007 } 2008 2009 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 2010 2011 compr_dbg(compr, "Read %d bytes\n", nbytes); 2012 2013 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 2014 compr_err(compr, "Failed to copy data to user: %d, %d\n", 2015 ntotal, nbytes); 2016 return -EFAULT; 2017 } 2018 2019 count -= nwords; 2020 ntotal += nbytes; 2021 } while (nwords > 0 && count > 0); 2022 2023 compr->copied_total += ntotal; 2024 2025 return ntotal; 2026 } 2027 2028 int wm_adsp_compr_copy(struct snd_soc_component *component, 2029 struct snd_compr_stream *stream, char __user *buf, 2030 size_t count) 2031 { 2032 struct wm_adsp_compr *compr = stream->runtime->private_data; 2033 struct wm_adsp *dsp = compr->dsp; 2034 int ret; 2035 2036 mutex_lock(&dsp->cs_dsp.pwr_lock); 2037 2038 if (stream->direction == SND_COMPRESS_CAPTURE) 2039 ret = wm_adsp_compr_read(compr, buf, count); 2040 else 2041 ret = -ENOTSUPP; 2042 2043 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2044 2045 return ret; 2046 } 2047 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2048 2049 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2050 { 2051 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2052 struct wm_adsp_compr *compr; 2053 2054 dsp->fatal_error = true; 2055 2056 list_for_each_entry(compr, &dsp->compr_list, list) { 2057 if (compr->stream) 2058 snd_compr_fragment_elapsed(compr->stream); 2059 } 2060 } 2061 2062 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2063 { 2064 struct wm_adsp *dsp = (struct wm_adsp *)data; 2065 2066 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2067 2068 return IRQ_HANDLED; 2069 } 2070 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2071 2072 irqreturn_t wm_halo_bus_error(int irq, void *data) 2073 { 2074 struct wm_adsp *dsp = (struct wm_adsp *)data; 2075 2076 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2077 2078 return IRQ_HANDLED; 2079 } 2080 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2081 2082 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2083 { 2084 struct wm_adsp *dsp = data; 2085 2086 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2087 2088 return IRQ_HANDLED; 2089 } 2090 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2091 2092 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2093 .control_add = wm_adsp_control_add, 2094 .control_remove = wm_adsp_control_remove, 2095 }; 2096 2097 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2098 .control_add = wm_adsp_control_add, 2099 .control_remove = wm_adsp_control_remove, 2100 .pre_run = wm_adsp_pre_run, 2101 .post_run = wm_adsp_event_post_run, 2102 .post_stop = wm_adsp_event_post_stop, 2103 .watchdog_expired = wm_adsp_fatal_error, 2104 }; 2105 2106 MODULE_LICENSE("GPL v2"); 2107 MODULE_IMPORT_NS(FW_CS_DSP); 2108