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