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/cleanup.h> 12 #include <linux/ctype.h> 13 #include <linux/module.h> 14 #include <linux/moduleparam.h> 15 #include <linux/init.h> 16 #include <linux/delay.h> 17 #include <linux/firmware.h> 18 #include <linux/list.h> 19 #include <linux/pm.h> 20 #include <linux/regmap.h> 21 #include <linux/regulator/consumer.h> 22 #include <linux/slab.h> 23 #include <linux/string.h> 24 #include <linux/workqueue.h> 25 #include <linux/debugfs.h> 26 #include <sound/core.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/jack.h> 31 #include <sound/initval.h> 32 #include <sound/tlv.h> 33 34 #include "wm_adsp.h" 35 36 #define adsp_crit(_dsp, fmt, ...) \ 37 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 38 #define adsp_err(_dsp, fmt, ...) \ 39 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 40 #define adsp_warn(_dsp, fmt, ...) \ 41 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 42 #define adsp_info(_dsp, fmt, ...) \ 43 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 44 #define adsp_dbg(_dsp, fmt, ...) \ 45 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__) 46 47 #define compr_err(_obj, fmt, ...) \ 48 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 49 ##__VA_ARGS__) 50 #define compr_dbg(_obj, fmt, ...) \ 51 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \ 52 ##__VA_ARGS__) 53 54 #define ADSP_MAX_STD_CTRL_SIZE 512 55 56 static const struct cs_dsp_client_ops wm_adsp1_client_ops; 57 static const struct cs_dsp_client_ops wm_adsp2_client_ops; 58 59 #define WM_ADSP_FW_MBC_VSS 0 60 #define WM_ADSP_FW_HIFI 1 61 #define WM_ADSP_FW_TX 2 62 #define WM_ADSP_FW_TX_SPK 3 63 #define WM_ADSP_FW_RX 4 64 #define WM_ADSP_FW_RX_ANC 5 65 #define WM_ADSP_FW_CTRL 6 66 #define WM_ADSP_FW_ASR 7 67 #define WM_ADSP_FW_TRACE 8 68 #define WM_ADSP_FW_SPK_PROT 9 69 #define WM_ADSP_FW_SPK_CALI 10 70 #define WM_ADSP_FW_SPK_DIAG 11 71 #define WM_ADSP_FW_MISC 12 72 73 #define WM_ADSP_NUM_FW 13 74 75 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = { 76 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS", 77 [WM_ADSP_FW_HIFI] = "MasterHiFi", 78 [WM_ADSP_FW_TX] = "Tx", 79 [WM_ADSP_FW_TX_SPK] = "Tx Speaker", 80 [WM_ADSP_FW_RX] = "Rx", 81 [WM_ADSP_FW_RX_ANC] = "Rx ANC", 82 [WM_ADSP_FW_CTRL] = "Voice Ctrl", 83 [WM_ADSP_FW_ASR] = "ASR Assist", 84 [WM_ADSP_FW_TRACE] = "Dbg Trace", 85 [WM_ADSP_FW_SPK_PROT] = "Protection", 86 [WM_ADSP_FW_SPK_CALI] = "Calibration", 87 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic", 88 [WM_ADSP_FW_MISC] = "Misc", 89 }; 90 91 struct wm_adsp_system_config_xm_hdr { 92 __be32 sys_enable; 93 __be32 fw_id; 94 __be32 fw_rev; 95 __be32 boot_status; 96 __be32 watchdog; 97 __be32 dma_buffer_size; 98 __be32 rdma[6]; 99 __be32 wdma[8]; 100 __be32 build_job_name[3]; 101 __be32 build_job_number; 102 } __packed; 103 104 struct wm_halo_system_config_xm_hdr { 105 __be32 halo_heartbeat; 106 __be32 build_job_name[3]; 107 __be32 build_job_number; 108 } __packed; 109 110 struct wm_adsp_alg_xm_struct { 111 __be32 magic; 112 __be32 smoothing; 113 __be32 threshold; 114 __be32 host_buf_ptr; 115 __be32 start_seq; 116 __be32 high_water_mark; 117 __be32 low_water_mark; 118 __be64 smoothed_power; 119 } __packed; 120 121 struct wm_adsp_host_buf_coeff_v1 { 122 __be32 host_buf_ptr; /* Host buffer pointer */ 123 __be32 versions; /* Version numbers */ 124 __be32 name[4]; /* The buffer name */ 125 } __packed; 126 127 struct wm_adsp_buffer { 128 __be32 buf1_base; /* Base addr of first buffer area */ 129 __be32 buf1_size; /* Size of buf1 area in DSP words */ 130 __be32 buf2_base; /* Base addr of 2nd buffer area */ 131 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */ 132 __be32 buf3_base; /* Base addr of buf3 area */ 133 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */ 134 __be32 high_water_mark; /* Point at which IRQ is asserted */ 135 __be32 irq_count; /* bits 1-31 count IRQ assertions */ 136 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */ 137 __be32 next_write_index; /* word index of next write */ 138 __be32 next_read_index; /* word index of next read */ 139 __be32 error; /* error if any */ 140 __be32 oldest_block_index; /* word index of oldest surviving */ 141 __be32 requested_rewind; /* how many blocks rewind was done */ 142 __be32 reserved_space; /* internal */ 143 __be32 min_free; /* min free space since stream start */ 144 __be32 blocks_written[2]; /* total blocks written (64 bit) */ 145 __be32 words_written[2]; /* total words written (64 bit) */ 146 } __packed; 147 148 struct wm_adsp_compr; 149 150 struct wm_adsp_compr_buf { 151 struct list_head list; 152 struct wm_adsp *dsp; 153 struct wm_adsp_compr *compr; 154 155 struct wm_adsp_buffer_region *regions; 156 u32 host_buf_ptr; 157 158 u32 error; 159 u32 irq_count; 160 int read_index; 161 int avail; 162 int host_buf_mem_type; 163 164 char *name; 165 }; 166 167 struct wm_adsp_compr { 168 struct list_head list; 169 struct wm_adsp *dsp; 170 struct wm_adsp_compr_buf *buf; 171 172 struct snd_compr_stream *stream; 173 struct snd_compressed_buffer size; 174 175 u32 *raw_buf; 176 u64 copied_total; 177 178 unsigned int sample_rate; 179 180 const char *name; 181 }; 182 183 #define WM_ADSP_MIN_FRAGMENTS 1 184 #define WM_ADSP_MAX_FRAGMENTS 256 185 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE) 186 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE) 187 188 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7 189 190 #define HOST_BUFFER_FIELD(field) \ 191 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32)) 192 193 #define ALG_XM_FIELD(field) \ 194 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32)) 195 196 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1 197 198 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00 199 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8 200 201 static int wm_adsp_buffer_init(struct wm_adsp *dsp); 202 static int wm_adsp_buffer_free(struct wm_adsp *dsp); 203 204 struct wm_adsp_buffer_region { 205 unsigned int offset; 206 unsigned int cumulative_size; 207 unsigned int mem_type; 208 unsigned int base_addr; 209 }; 210 211 struct wm_adsp_buffer_region_def { 212 unsigned int mem_type; 213 unsigned int base_offset; 214 unsigned int size_offset; 215 }; 216 217 static const struct wm_adsp_buffer_region_def default_regions[] = { 218 { 219 .mem_type = WMFW_ADSP2_XM, 220 .base_offset = HOST_BUFFER_FIELD(buf1_base), 221 .size_offset = HOST_BUFFER_FIELD(buf1_size), 222 }, 223 { 224 .mem_type = WMFW_ADSP2_XM, 225 .base_offset = HOST_BUFFER_FIELD(buf2_base), 226 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size), 227 }, 228 { 229 .mem_type = WMFW_ADSP2_YM, 230 .base_offset = HOST_BUFFER_FIELD(buf3_base), 231 .size_offset = HOST_BUFFER_FIELD(buf_total_size), 232 }, 233 }; 234 235 struct wm_adsp_fw_caps { 236 u32 id; 237 struct snd_codec_desc desc; 238 int num_regions; 239 const struct wm_adsp_buffer_region_def *region_defs; 240 }; 241 242 static const struct wm_adsp_fw_caps ctrl_caps[] = { 243 { 244 .id = SND_AUDIOCODEC_BESPOKE, 245 .desc = { 246 .max_ch = 8, 247 .sample_rates = { 16000 }, 248 .num_sample_rates = 1, 249 .formats = SNDRV_PCM_FMTBIT_S16_LE, 250 }, 251 .num_regions = ARRAY_SIZE(default_regions), 252 .region_defs = default_regions, 253 }, 254 }; 255 256 static const struct wm_adsp_fw_caps trace_caps[] = { 257 { 258 .id = SND_AUDIOCODEC_BESPOKE, 259 .desc = { 260 .max_ch = 8, 261 .sample_rates = { 262 4000, 8000, 11025, 12000, 16000, 22050, 263 24000, 32000, 44100, 48000, 64000, 88200, 264 96000, 176400, 192000 265 }, 266 .num_sample_rates = 15, 267 .formats = SNDRV_PCM_FMTBIT_S16_LE, 268 }, 269 .num_regions = ARRAY_SIZE(default_regions), 270 .region_defs = default_regions, 271 }, 272 }; 273 274 static const struct { 275 const char *file; 276 int compr_direction; 277 int num_caps; 278 const struct wm_adsp_fw_caps *caps; 279 bool voice_trigger; 280 } wm_adsp_fw[WM_ADSP_NUM_FW] = { 281 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" }, 282 [WM_ADSP_FW_HIFI] = { .file = "hifi" }, 283 [WM_ADSP_FW_TX] = { .file = "tx" }, 284 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" }, 285 [WM_ADSP_FW_RX] = { .file = "rx" }, 286 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" }, 287 [WM_ADSP_FW_CTRL] = { 288 .file = "ctrl", 289 .compr_direction = SND_COMPRESS_CAPTURE, 290 .num_caps = ARRAY_SIZE(ctrl_caps), 291 .caps = ctrl_caps, 292 .voice_trigger = true, 293 }, 294 [WM_ADSP_FW_ASR] = { .file = "asr" }, 295 [WM_ADSP_FW_TRACE] = { 296 .file = "trace", 297 .compr_direction = SND_COMPRESS_CAPTURE, 298 .num_caps = ARRAY_SIZE(trace_caps), 299 .caps = trace_caps, 300 }, 301 [WM_ADSP_FW_SPK_PROT] = { 302 .file = "spk-prot", 303 .compr_direction = SND_COMPRESS_CAPTURE, 304 .num_caps = ARRAY_SIZE(trace_caps), 305 .caps = trace_caps, 306 }, 307 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" }, 308 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" }, 309 [WM_ADSP_FW_MISC] = { .file = "misc" }, 310 }; 311 312 struct wm_coeff_ctl { 313 const char *name; 314 struct cs_dsp_coeff_ctl *cs_ctl; 315 struct soc_bytes_ext bytes_ext; 316 struct work_struct work; 317 }; 318 319 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol, 320 struct snd_ctl_elem_value *ucontrol) 321 { 322 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 323 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 324 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 325 326 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw; 327 328 return 0; 329 } 330 EXPORT_SYMBOL_GPL(wm_adsp_fw_get); 331 332 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, 333 struct snd_ctl_elem_value *ucontrol) 334 { 335 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 336 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; 337 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); 338 int ret = 1; 339 340 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw) 341 return 0; 342 343 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW) 344 return -EINVAL; 345 346 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock); 347 348 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list)) 349 ret = -EBUSY; 350 else 351 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0]; 352 353 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock); 354 355 return ret; 356 } 357 EXPORT_SYMBOL_GPL(wm_adsp_fw_put); 358 359 const struct soc_enum wm_adsp_fw_enum[] = { 360 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 361 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 362 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 363 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 364 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 365 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 366 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text), 367 }; 368 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum); 369 370 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext) 371 { 372 return container_of(ext, struct wm_coeff_ctl, bytes_ext); 373 } 374 375 static int wm_coeff_info(struct snd_kcontrol *kctl, 376 struct snd_ctl_elem_info *uinfo) 377 { 378 struct soc_bytes_ext *bytes_ext = 379 (struct soc_bytes_ext *)kctl->private_value; 380 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 381 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 382 383 switch (cs_ctl->type) { 384 case WMFW_CTL_TYPE_ACKED: 385 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 386 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE; 387 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE; 388 uinfo->value.integer.step = 1; 389 uinfo->count = 1; 390 break; 391 default: 392 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; 393 uinfo->count = cs_ctl->len; 394 break; 395 } 396 397 return 0; 398 } 399 400 static int wm_coeff_put(struct snd_kcontrol *kctl, 401 struct snd_ctl_elem_value *ucontrol) 402 { 403 struct soc_bytes_ext *bytes_ext = 404 (struct soc_bytes_ext *)kctl->private_value; 405 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 406 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 407 char *p = ucontrol->value.bytes.data; 408 409 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, p, cs_ctl->len); 410 } 411 412 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, 413 const unsigned int __user *bytes, unsigned int size) 414 { 415 struct soc_bytes_ext *bytes_ext = 416 (struct soc_bytes_ext *)kctl->private_value; 417 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 418 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 419 void *scratch __free(kvfree) = vmemdup_user(bytes, size); 420 421 if (IS_ERR(scratch)) 422 return PTR_ERR(scratch); 423 424 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, scratch, size); 425 } 426 427 static int wm_coeff_put_acked(struct snd_kcontrol *kctl, 428 struct snd_ctl_elem_value *ucontrol) 429 { 430 struct soc_bytes_ext *bytes_ext = 431 (struct soc_bytes_ext *)kctl->private_value; 432 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 433 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 434 unsigned int val = ucontrol->value.integer.value[0]; 435 int ret; 436 437 if (val == 0) 438 return 0; /* 0 means no event */ 439 440 mutex_lock(&cs_ctl->dsp->pwr_lock); 441 442 if (cs_ctl->enabled) 443 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val); 444 else 445 ret = -EPERM; 446 447 mutex_unlock(&cs_ctl->dsp->pwr_lock); 448 449 if (ret < 0) 450 return ret; 451 452 return 1; 453 } 454 455 static int wm_coeff_get(struct snd_kcontrol *kctl, 456 struct snd_ctl_elem_value *ucontrol) 457 { 458 struct soc_bytes_ext *bytes_ext = 459 (struct soc_bytes_ext *)kctl->private_value; 460 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 461 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 462 char *p = ucontrol->value.bytes.data; 463 464 return cs_dsp_coeff_lock_and_read_ctrl(cs_ctl, 0, p, cs_ctl->len); 465 } 466 467 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl, 468 unsigned int __user *bytes, unsigned int size) 469 { 470 struct soc_bytes_ext *bytes_ext = 471 (struct soc_bytes_ext *)kctl->private_value; 472 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext); 473 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 474 int ret = 0; 475 476 mutex_lock(&cs_ctl->dsp->pwr_lock); 477 478 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size); 479 480 if (!ret && copy_to_user(bytes, cs_ctl->cache, size)) 481 ret = -EFAULT; 482 483 mutex_unlock(&cs_ctl->dsp->pwr_lock); 484 485 return ret; 486 } 487 488 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol, 489 struct snd_ctl_elem_value *ucontrol) 490 { 491 /* 492 * Although it's not useful to read an acked control, we must satisfy 493 * user-side assumptions that all controls are readable and that a 494 * write of the same value should be filtered out (it's valid to send 495 * the same event number again to the firmware). We therefore return 0, 496 * meaning "no event" so valid event numbers will always be a change 497 */ 498 ucontrol->value.integer.value[0] = 0; 499 500 return 0; 501 } 502 503 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) 504 { 505 unsigned int out, rd, wr, vol; 506 507 if (len > ADSP_MAX_STD_CTRL_SIZE) { 508 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ; 509 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE; 510 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 511 512 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; 513 } else { 514 rd = SNDRV_CTL_ELEM_ACCESS_READ; 515 wr = SNDRV_CTL_ELEM_ACCESS_WRITE; 516 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE; 517 518 out = 0; 519 } 520 521 if (in) { 522 out |= rd; 523 if (in & WMFW_CTL_FLAG_WRITEABLE) 524 out |= wr; 525 if (in & WMFW_CTL_FLAG_VOLATILE) 526 out |= vol; 527 } else { 528 out |= rd | wr | vol; 529 } 530 531 return out; 532 } 533 534 static void wm_adsp_ctl_work(struct work_struct *work) 535 { 536 struct wm_coeff_ctl *ctl = container_of(work, 537 struct wm_coeff_ctl, 538 work); 539 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl; 540 struct wm_adsp *dsp = container_of(cs_ctl->dsp, 541 struct wm_adsp, 542 cs_dsp); 543 struct snd_kcontrol_new *kcontrol; 544 545 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL); 546 if (!kcontrol) 547 return; 548 549 kcontrol->name = ctl->name; 550 kcontrol->info = wm_coeff_info; 551 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 552 kcontrol->tlv.c = snd_soc_bytes_tlv_callback; 553 kcontrol->private_value = (unsigned long)&ctl->bytes_ext; 554 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len); 555 556 switch (cs_ctl->type) { 557 case WMFW_CTL_TYPE_ACKED: 558 kcontrol->get = wm_coeff_get_acked; 559 kcontrol->put = wm_coeff_put_acked; 560 break; 561 default: 562 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 563 ctl->bytes_ext.max = cs_ctl->len; 564 ctl->bytes_ext.get = wm_coeff_tlv_get; 565 ctl->bytes_ext.put = wm_coeff_tlv_put; 566 } else { 567 kcontrol->get = wm_coeff_get; 568 kcontrol->put = wm_coeff_put; 569 } 570 break; 571 } 572 573 snd_soc_add_component_controls(dsp->component, kcontrol, 1); 574 575 kfree(kcontrol); 576 } 577 578 int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl) 579 { 580 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 581 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 582 struct wm_coeff_ctl *ctl; 583 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; 584 const char *region_name; 585 int ret; 586 587 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS) 588 return 0; 589 590 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type); 591 if (!region_name) { 592 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type); 593 return -EINVAL; 594 } 595 596 switch (cs_dsp->wmfw_ver) { 597 case 0: 598 case 1: 599 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 600 "%s %s %x", cs_dsp->name, region_name, 601 cs_ctl->alg_region.alg); 602 break; 603 case 2: 604 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 605 "%s%c %.12s %x", cs_dsp->name, *region_name, 606 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 607 break; 608 default: 609 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, 610 "%s %.12s %x", cs_dsp->name, 611 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg); 612 break; 613 } 614 615 if (cs_ctl->subname) { 616 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2; 617 int skip = 0; 618 619 if (dsp->component->name_prefix) 620 avail -= strlen(dsp->component->name_prefix) + 1; 621 622 /* Truncate the subname from the start if it is too long */ 623 if (cs_ctl->subname_len > avail) 624 skip = cs_ctl->subname_len - avail; 625 626 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, 627 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip); 628 } 629 630 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); 631 if (!ctl) 632 return -ENOMEM; 633 ctl->cs_ctl = cs_ctl; 634 635 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL); 636 if (!ctl->name) { 637 ret = -ENOMEM; 638 goto err_ctl; 639 } 640 641 cs_ctl->priv = ctl; 642 643 INIT_WORK(&ctl->work, wm_adsp_ctl_work); 644 schedule_work(&ctl->work); 645 646 return 0; 647 648 err_ctl: 649 kfree(ctl); 650 651 return ret; 652 } 653 EXPORT_SYMBOL_GPL(wm_adsp_control_add); 654 655 static int wm_adsp_control_add_cb(struct cs_dsp_coeff_ctl *cs_ctl) 656 { 657 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 658 659 if (dsp->control_add) 660 return (dsp->control_add)(dsp, cs_ctl); 661 else 662 return wm_adsp_control_add(cs_ctl); 663 } 664 665 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl) 666 { 667 struct wm_coeff_ctl *ctl = cs_ctl->priv; 668 669 cancel_work_sync(&ctl->work); 670 671 kfree(ctl->name); 672 kfree(ctl); 673 } 674 675 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type, 676 unsigned int alg, void *buf, size_t len) 677 { 678 struct cs_dsp_coeff_ctl *cs_ctl; 679 int ret; 680 681 mutex_lock(&dsp->cs_dsp.pwr_lock); 682 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg); 683 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len); 684 mutex_unlock(&dsp->cs_dsp.pwr_lock); 685 686 if (ret < 0) 687 return ret; 688 689 return 0; 690 } 691 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl); 692 693 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type, 694 unsigned int alg, void *buf, size_t len) 695 { 696 int ret; 697 698 mutex_lock(&dsp->cs_dsp.pwr_lock); 699 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg), 700 0, buf, len); 701 mutex_unlock(&dsp->cs_dsp.pwr_lock); 702 703 return ret; 704 } 705 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl); 706 707 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp, 708 const struct firmware *wmfw_firmware, 709 char *wmfw_filename, 710 const struct firmware *coeff_firmware, 711 char *coeff_filename) 712 { 713 release_firmware(wmfw_firmware); 714 kfree(wmfw_filename); 715 716 release_firmware(coeff_firmware); 717 kfree(coeff_filename); 718 } 719 720 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp, 721 const struct firmware **firmware, char **filename, 722 const char *dir, const char *system_name, 723 const char *asoc_component_prefix, 724 const char *filetype) 725 { 726 struct cs_dsp *cs_dsp = &dsp->cs_dsp; 727 const char *fwf; 728 char *s, c; 729 int ret = 0; 730 731 if (dsp->fwf_name) 732 fwf = dsp->fwf_name; 733 else 734 fwf = dsp->cs_dsp.name; 735 736 if (system_name && asoc_component_prefix) 737 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part, 738 fwf, wm_adsp_fw[dsp->fw].file, system_name, 739 asoc_component_prefix, filetype); 740 else if (system_name) 741 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part, 742 fwf, wm_adsp_fw[dsp->fw].file, system_name, 743 filetype); 744 else 745 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf, 746 wm_adsp_fw[dsp->fw].file, filetype); 747 748 if (*filename == NULL) 749 return -ENOMEM; 750 751 /* 752 * Make sure that filename is lower-case and any non alpha-numeric 753 * characters except full stop and forward slash are replaced with 754 * hyphens. 755 */ 756 s = *filename; 757 while (*s) { 758 c = *s; 759 if (isalnum(c)) 760 *s = tolower(c); 761 else if ((c != '.') && (c != '/')) 762 *s = '-'; 763 s++; 764 } 765 766 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev); 767 if (ret != 0) { 768 adsp_dbg(dsp, "Failed to request '%s'\n", *filename); 769 kfree(*filename); 770 *filename = NULL; 771 } else { 772 adsp_dbg(dsp, "Found '%s'\n", *filename); 773 } 774 775 return ret; 776 } 777 778 static const char * const cirrus_dir = "cirrus/"; 779 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp, 780 const struct firmware **wmfw_firmware, 781 char **wmfw_filename, 782 const struct firmware **coeff_firmware, 783 char **coeff_filename) 784 { 785 const char *system_name = dsp->system_name; 786 const char *suffix = dsp->component->name_prefix; 787 int ret = 0; 788 789 if (dsp->fwf_suffix) 790 suffix = dsp->fwf_suffix; 791 792 if (system_name && suffix) { 793 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 794 cirrus_dir, system_name, 795 suffix, "wmfw")) { 796 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 797 cirrus_dir, system_name, 798 suffix, "bin"); 799 return 0; 800 } 801 } 802 803 if (system_name) { 804 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 805 cirrus_dir, system_name, 806 NULL, "wmfw")) { 807 if (suffix) 808 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 809 cirrus_dir, system_name, 810 suffix, "bin"); 811 812 if (!*coeff_firmware) 813 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 814 cirrus_dir, system_name, 815 NULL, "bin"); 816 return 0; 817 } 818 } 819 820 /* Check system-specific bin without wmfw before falling back to generic */ 821 if (dsp->wmfw_optional && system_name) { 822 if (suffix) 823 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 824 cirrus_dir, system_name, 825 suffix, "bin"); 826 827 if (!*coeff_firmware) 828 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 829 cirrus_dir, system_name, 830 NULL, "bin"); 831 832 if (*coeff_firmware) 833 return 0; 834 } 835 836 /* Check legacy location */ 837 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 838 "", NULL, NULL, "wmfw")) { 839 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 840 "", NULL, NULL, "bin"); 841 return 0; 842 } 843 844 /* Fall back to generic wmfw and optional matching bin */ 845 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename, 846 cirrus_dir, NULL, NULL, "wmfw"); 847 if (!ret || dsp->wmfw_optional) { 848 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename, 849 cirrus_dir, NULL, NULL, "bin"); 850 return 0; 851 } 852 853 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n", 854 cirrus_dir, dsp->part, 855 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name, 856 wm_adsp_fw[dsp->fw].file, system_name, suffix); 857 858 return -ENOENT; 859 } 860 861 static int wm_adsp_common_init(struct wm_adsp *dsp) 862 { 863 INIT_LIST_HEAD(&dsp->compr_list); 864 INIT_LIST_HEAD(&dsp->buffer_list); 865 866 return 0; 867 } 868 869 int wm_adsp1_init(struct wm_adsp *dsp) 870 { 871 int ret; 872 873 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops; 874 875 ret = cs_dsp_adsp1_init(&dsp->cs_dsp); 876 if (ret) 877 return ret; 878 879 return wm_adsp_common_init(dsp); 880 } 881 EXPORT_SYMBOL_GPL(wm_adsp1_init); 882 883 int wm_adsp1_event(struct snd_soc_dapm_widget *w, 884 struct snd_kcontrol *kcontrol, 885 int event) 886 { 887 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 888 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 889 struct wm_adsp *dsp = &dsps[w->shift]; 890 int ret = 0; 891 char *wmfw_filename = NULL; 892 const struct firmware *wmfw_firmware = NULL; 893 char *coeff_filename = NULL; 894 const struct firmware *coeff_firmware = NULL; 895 896 dsp->component = component; 897 898 switch (event) { 899 case SND_SOC_DAPM_POST_PMU: 900 ret = wm_adsp_request_firmware_files(dsp, 901 &wmfw_firmware, &wmfw_filename, 902 &coeff_firmware, &coeff_filename); 903 if (ret) 904 break; 905 906 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp, 907 wmfw_firmware, wmfw_filename, 908 coeff_firmware, coeff_filename, 909 wm_adsp_fw_text[dsp->fw]); 910 911 wm_adsp_release_firmware_files(dsp, 912 wmfw_firmware, wmfw_filename, 913 coeff_firmware, coeff_filename); 914 break; 915 case SND_SOC_DAPM_PRE_PMD: 916 cs_dsp_adsp1_power_down(&dsp->cs_dsp); 917 break; 918 default: 919 break; 920 } 921 922 return ret; 923 } 924 EXPORT_SYMBOL_GPL(wm_adsp1_event); 925 926 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq) 927 { 928 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 929 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 930 struct wm_adsp *dsp = &dsps[w->shift]; 931 932 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq); 933 } 934 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk); 935 936 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, 937 struct snd_ctl_elem_value *ucontrol) 938 { 939 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 940 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 941 struct soc_mixer_control *mc = 942 (struct soc_mixer_control *)kcontrol->private_value; 943 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 944 945 ucontrol->value.integer.value[0] = dsp->preloaded; 946 947 return 0; 948 } 949 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get); 950 951 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, 952 struct snd_ctl_elem_value *ucontrol) 953 { 954 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 955 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 956 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 957 struct soc_mixer_control *mc = 958 (struct soc_mixer_control *)kcontrol->private_value; 959 struct wm_adsp *dsp = &dsps[mc->shift - 1]; 960 char preload[32]; 961 962 if (dsp->preloaded == ucontrol->value.integer.value[0]) 963 return 0; 964 965 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 966 967 if (ucontrol->value.integer.value[0] || dsp->toggle_preload) 968 snd_soc_component_force_enable_pin(component, preload); 969 else 970 snd_soc_component_disable_pin(component, preload); 971 972 snd_soc_dapm_sync(dapm); 973 974 flush_work(&dsp->boot_work); 975 976 dsp->preloaded = ucontrol->value.integer.value[0]; 977 978 if (dsp->toggle_preload) { 979 snd_soc_component_disable_pin(component, preload); 980 snd_soc_dapm_sync(dapm); 981 } 982 983 return 1; 984 } 985 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put); 986 987 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware) 988 { 989 int ret = 0; 990 char *wmfw_filename = NULL; 991 const struct firmware *wmfw_firmware = NULL; 992 char *coeff_filename = NULL; 993 const struct firmware *coeff_firmware = NULL; 994 995 if (load_firmware) { 996 ret = wm_adsp_request_firmware_files(dsp, 997 &wmfw_firmware, &wmfw_filename, 998 &coeff_firmware, &coeff_filename); 999 if (ret) 1000 return ret; 1001 } 1002 1003 if (dsp->bin_mandatory && !coeff_firmware) { 1004 ret = -ENOENT; 1005 goto err; 1006 } 1007 1008 ret = cs_dsp_power_up(&dsp->cs_dsp, 1009 wmfw_firmware, wmfw_filename, 1010 coeff_firmware, coeff_filename, 1011 wm_adsp_fw_text[dsp->fw]); 1012 1013 err: 1014 wm_adsp_release_firmware_files(dsp, 1015 wmfw_firmware, wmfw_filename, 1016 coeff_firmware, coeff_filename); 1017 1018 return ret; 1019 } 1020 EXPORT_SYMBOL_GPL(wm_adsp_power_up); 1021 1022 void wm_adsp_power_down(struct wm_adsp *dsp) 1023 { 1024 cs_dsp_power_down(&dsp->cs_dsp); 1025 } 1026 EXPORT_SYMBOL_GPL(wm_adsp_power_down); 1027 1028 static void wm_adsp_boot_work(struct work_struct *work) 1029 { 1030 struct wm_adsp *dsp = container_of(work, 1031 struct wm_adsp, 1032 boot_work); 1033 1034 wm_adsp_power_up(dsp, true); 1035 } 1036 1037 int wm_adsp_early_event(struct snd_soc_dapm_widget *w, 1038 struct snd_kcontrol *kcontrol, int event) 1039 { 1040 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1041 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1042 struct wm_adsp *dsp = &dsps[w->shift]; 1043 1044 switch (event) { 1045 case SND_SOC_DAPM_PRE_PMU: 1046 queue_work(system_dfl_wq, &dsp->boot_work); 1047 break; 1048 case SND_SOC_DAPM_PRE_PMD: 1049 wm_adsp_power_down(dsp); 1050 break; 1051 default: 1052 break; 1053 } 1054 1055 return 0; 1056 } 1057 EXPORT_SYMBOL_GPL(wm_adsp_early_event); 1058 1059 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp) 1060 { 1061 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1062 1063 if (!dsp->pre_run) 1064 return 0; 1065 1066 return (*dsp->pre_run)(dsp); 1067 } 1068 1069 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp) 1070 { 1071 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1072 1073 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1074 return wm_adsp_buffer_init(dsp); 1075 1076 return 0; 1077 } 1078 1079 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp) 1080 { 1081 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 1082 1083 if (wm_adsp_fw[dsp->fw].num_caps != 0) 1084 wm_adsp_buffer_free(dsp); 1085 1086 dsp->fatal_error = false; 1087 } 1088 1089 int wm_adsp_run(struct wm_adsp *dsp) 1090 { 1091 flush_work(&dsp->boot_work); 1092 1093 return cs_dsp_run(&dsp->cs_dsp); 1094 } 1095 EXPORT_SYMBOL_GPL(wm_adsp_run); 1096 1097 void wm_adsp_stop(struct wm_adsp *dsp) 1098 { 1099 cs_dsp_stop(&dsp->cs_dsp); 1100 } 1101 EXPORT_SYMBOL_GPL(wm_adsp_stop); 1102 1103 int wm_adsp_event(struct snd_soc_dapm_widget *w, 1104 struct snd_kcontrol *kcontrol, int event) 1105 { 1106 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 1107 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); 1108 struct wm_adsp *dsp = &dsps[w->shift]; 1109 1110 switch (event) { 1111 case SND_SOC_DAPM_POST_PMU: 1112 return wm_adsp_run(dsp); 1113 case SND_SOC_DAPM_PRE_PMD: 1114 wm_adsp_stop(dsp); 1115 return 0; 1116 default: 1117 return 0; 1118 } 1119 } 1120 EXPORT_SYMBOL_GPL(wm_adsp_event); 1121 1122 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component) 1123 { 1124 char preload[32]; 1125 1126 if (!dsp->cs_dsp.no_core_startstop) { 1127 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name); 1128 snd_soc_component_disable_pin(component, preload); 1129 } 1130 1131 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root); 1132 1133 dsp->component = component; 1134 1135 return 0; 1136 } 1137 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe); 1138 1139 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component) 1140 { 1141 cs_dsp_cleanup_debugfs(&dsp->cs_dsp); 1142 1143 return 0; 1144 } 1145 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove); 1146 1147 int wm_adsp2_init(struct wm_adsp *dsp) 1148 { 1149 int ret; 1150 1151 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1152 1153 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr); 1154 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1155 1156 ret = cs_dsp_adsp2_init(&dsp->cs_dsp); 1157 if (ret) 1158 return ret; 1159 1160 return wm_adsp_common_init(dsp); 1161 } 1162 EXPORT_SYMBOL_GPL(wm_adsp2_init); 1163 1164 int wm_halo_init(struct wm_adsp *dsp) 1165 { 1166 int ret; 1167 1168 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work); 1169 1170 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr); 1171 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops; 1172 1173 ret = cs_dsp_halo_init(&dsp->cs_dsp); 1174 if (ret) 1175 return ret; 1176 1177 return wm_adsp_common_init(dsp); 1178 } 1179 EXPORT_SYMBOL_GPL(wm_halo_init); 1180 1181 void wm_adsp2_remove(struct wm_adsp *dsp) 1182 { 1183 cs_dsp_remove(&dsp->cs_dsp); 1184 } 1185 EXPORT_SYMBOL_GPL(wm_adsp2_remove); 1186 1187 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr) 1188 { 1189 return compr->buf != NULL; 1190 } 1191 1192 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr) 1193 { 1194 struct wm_adsp_compr_buf *buf = NULL, *tmp; 1195 1196 if (compr->dsp->fatal_error) 1197 return -EINVAL; 1198 1199 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) { 1200 if (!tmp->name || !strcmp(compr->name, tmp->name)) { 1201 buf = tmp; 1202 break; 1203 } 1204 } 1205 1206 if (!buf) 1207 return -EINVAL; 1208 1209 compr->buf = buf; 1210 buf->compr = compr; 1211 1212 return 0; 1213 } 1214 1215 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr) 1216 { 1217 if (!compr) 1218 return; 1219 1220 /* Wake the poll so it can see buffer is no longer attached */ 1221 if (compr->stream) 1222 snd_compr_fragment_elapsed(compr->stream); 1223 1224 if (wm_adsp_compr_attached(compr)) { 1225 compr->buf->compr = NULL; 1226 compr->buf = NULL; 1227 } 1228 } 1229 1230 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream) 1231 { 1232 struct wm_adsp_compr *compr, *tmp; 1233 struct snd_soc_pcm_runtime *rtd = stream->private_data; 1234 int ret = 0; 1235 1236 mutex_lock(&dsp->cs_dsp.pwr_lock); 1237 1238 if (wm_adsp_fw[dsp->fw].num_caps == 0) { 1239 adsp_err(dsp, "%s: Firmware does not support compressed API\n", 1240 snd_soc_rtd_to_codec(rtd, 0)->name); 1241 ret = -ENXIO; 1242 goto out; 1243 } 1244 1245 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) { 1246 adsp_err(dsp, "%s: Firmware does not support stream direction\n", 1247 snd_soc_rtd_to_codec(rtd, 0)->name); 1248 ret = -EINVAL; 1249 goto out; 1250 } 1251 1252 list_for_each_entry(tmp, &dsp->compr_list, list) { 1253 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) { 1254 adsp_err(dsp, "%s: Only a single stream supported per dai\n", 1255 snd_soc_rtd_to_codec(rtd, 0)->name); 1256 ret = -EBUSY; 1257 goto out; 1258 } 1259 } 1260 1261 compr = kzalloc(sizeof(*compr), GFP_KERNEL); 1262 if (!compr) { 1263 ret = -ENOMEM; 1264 goto out; 1265 } 1266 1267 compr->dsp = dsp; 1268 compr->stream = stream; 1269 compr->name = snd_soc_rtd_to_codec(rtd, 0)->name; 1270 1271 list_add_tail(&compr->list, &dsp->compr_list); 1272 1273 stream->runtime->private_data = compr; 1274 1275 out: 1276 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1277 1278 return ret; 1279 } 1280 EXPORT_SYMBOL_GPL(wm_adsp_compr_open); 1281 1282 int wm_adsp_compr_free(struct snd_soc_component *component, 1283 struct snd_compr_stream *stream) 1284 { 1285 struct wm_adsp_compr *compr = stream->runtime->private_data; 1286 struct wm_adsp *dsp = compr->dsp; 1287 1288 mutex_lock(&dsp->cs_dsp.pwr_lock); 1289 1290 wm_adsp_compr_detach(compr); 1291 list_del(&compr->list); 1292 1293 kfree(compr->raw_buf); 1294 kfree(compr); 1295 1296 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1297 1298 return 0; 1299 } 1300 EXPORT_SYMBOL_GPL(wm_adsp_compr_free); 1301 1302 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream, 1303 struct snd_compr_params *params) 1304 { 1305 struct wm_adsp_compr *compr = stream->runtime->private_data; 1306 struct wm_adsp *dsp = compr->dsp; 1307 const struct wm_adsp_fw_caps *caps; 1308 const struct snd_codec_desc *desc; 1309 int i, j; 1310 1311 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE || 1312 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE || 1313 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS || 1314 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS || 1315 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) { 1316 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n", 1317 params->buffer.fragment_size, 1318 params->buffer.fragments); 1319 1320 return -EINVAL; 1321 } 1322 1323 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) { 1324 caps = &wm_adsp_fw[dsp->fw].caps[i]; 1325 desc = &caps->desc; 1326 1327 if (caps->id != params->codec.id) 1328 continue; 1329 1330 if (stream->direction == SND_COMPRESS_PLAYBACK) { 1331 if (desc->max_ch < params->codec.ch_out) 1332 continue; 1333 } else { 1334 if (desc->max_ch < params->codec.ch_in) 1335 continue; 1336 } 1337 1338 if (!(desc->formats & (1 << params->codec.format))) 1339 continue; 1340 1341 for (j = 0; j < desc->num_sample_rates; ++j) 1342 if (desc->sample_rates[j] == params->codec.sample_rate) 1343 return 0; 1344 } 1345 1346 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n", 1347 params->codec.id, params->codec.ch_in, params->codec.ch_out, 1348 params->codec.sample_rate, params->codec.format); 1349 return -EINVAL; 1350 } 1351 1352 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr) 1353 { 1354 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE; 1355 } 1356 1357 int wm_adsp_compr_set_params(struct snd_soc_component *component, 1358 struct snd_compr_stream *stream, 1359 struct snd_compr_params *params) 1360 { 1361 struct wm_adsp_compr *compr = stream->runtime->private_data; 1362 unsigned int size; 1363 int ret; 1364 1365 ret = wm_adsp_compr_check_params(stream, params); 1366 if (ret) 1367 return ret; 1368 1369 compr->size = params->buffer; 1370 1371 compr_dbg(compr, "fragment_size=%d fragments=%d\n", 1372 compr->size.fragment_size, compr->size.fragments); 1373 1374 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf); 1375 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL); 1376 if (!compr->raw_buf) 1377 return -ENOMEM; 1378 1379 compr->sample_rate = params->codec.sample_rate; 1380 1381 return 0; 1382 } 1383 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params); 1384 1385 int wm_adsp_compr_get_caps(struct snd_soc_component *component, 1386 struct snd_compr_stream *stream, 1387 struct snd_compr_caps *caps) 1388 { 1389 struct wm_adsp_compr *compr = stream->runtime->private_data; 1390 int fw = compr->dsp->fw; 1391 int i; 1392 1393 if (wm_adsp_fw[fw].caps) { 1394 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++) 1395 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id; 1396 1397 caps->num_codecs = i; 1398 caps->direction = wm_adsp_fw[fw].compr_direction; 1399 1400 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE; 1401 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE; 1402 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS; 1403 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS; 1404 } 1405 1406 return 0; 1407 } 1408 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps); 1409 1410 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf, 1411 unsigned int field_offset, u32 *data) 1412 { 1413 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1414 buf->host_buf_ptr + field_offset, data); 1415 } 1416 1417 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, 1418 unsigned int field_offset, u32 data) 1419 { 1420 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type, 1421 buf->host_buf_ptr + field_offset, 1422 data); 1423 } 1424 1425 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf) 1426 { 1427 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps; 1428 struct wm_adsp_buffer_region *region; 1429 u32 offset = 0; 1430 int i, ret; 1431 1432 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions), 1433 GFP_KERNEL); 1434 if (!buf->regions) 1435 return -ENOMEM; 1436 1437 for (i = 0; i < caps->num_regions; ++i) { 1438 region = &buf->regions[i]; 1439 1440 region->offset = offset; 1441 region->mem_type = caps->region_defs[i].mem_type; 1442 1443 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset, 1444 ®ion->base_addr); 1445 if (ret < 0) 1446 goto err; 1447 1448 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset, 1449 &offset); 1450 if (ret < 0) 1451 goto err; 1452 1453 region->cumulative_size = offset; 1454 1455 compr_dbg(buf, 1456 "region=%d type=%d base=%08x off=%08x size=%08x\n", 1457 i, region->mem_type, region->base_addr, 1458 region->offset, region->cumulative_size); 1459 } 1460 1461 return 0; 1462 1463 err: 1464 kfree(buf->regions); 1465 return ret; 1466 } 1467 1468 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf) 1469 { 1470 buf->irq_count = 0xFFFFFFFF; 1471 buf->read_index = -1; 1472 buf->avail = 0; 1473 } 1474 1475 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp) 1476 { 1477 struct wm_adsp_compr_buf *buf; 1478 1479 buf = kzalloc(sizeof(*buf), GFP_KERNEL); 1480 if (!buf) 1481 return NULL; 1482 1483 buf->dsp = dsp; 1484 1485 wm_adsp_buffer_clear(buf); 1486 1487 return buf; 1488 } 1489 1490 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp) 1491 { 1492 struct cs_dsp_alg_region *alg_region; 1493 struct wm_adsp_compr_buf *buf; 1494 u32 xmalg, addr, magic; 1495 int i, ret; 1496 1497 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id); 1498 if (!alg_region) { 1499 adsp_err(dsp, "No algorithm region found\n"); 1500 return -EINVAL; 1501 } 1502 1503 xmalg = dsp->sys_config_size / sizeof(__be32); 1504 1505 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic); 1506 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic); 1507 if (ret < 0) 1508 return ret; 1509 1510 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC) 1511 return -ENODEV; 1512 1513 buf = wm_adsp_buffer_alloc(dsp); 1514 if (!buf) 1515 return -ENOMEM; 1516 1517 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr); 1518 for (i = 0; i < 5; ++i) { 1519 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, 1520 &buf->host_buf_ptr); 1521 if (ret < 0) 1522 goto err; 1523 1524 if (buf->host_buf_ptr) 1525 break; 1526 1527 usleep_range(1000, 2000); 1528 } 1529 1530 if (!buf->host_buf_ptr) { 1531 ret = -EIO; 1532 goto err; 1533 } 1534 1535 buf->host_buf_mem_type = WMFW_ADSP2_XM; 1536 1537 ret = wm_adsp_buffer_populate(buf); 1538 if (ret < 0) 1539 goto err; 1540 1541 list_add_tail(&buf->list, &dsp->buffer_list); 1542 1543 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr); 1544 1545 return 0; 1546 1547 err: 1548 kfree(buf); 1549 1550 return ret; 1551 } 1552 1553 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) 1554 { 1555 struct wm_adsp_host_buf_coeff_v1 coeff_v1; 1556 struct wm_adsp_compr_buf *buf; 1557 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp); 1558 unsigned int version = 0; 1559 int ret, i; 1560 1561 for (i = 0; i < 5; ++i) { 1562 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, 1563 min(cs_ctl->len, sizeof(coeff_v1))); 1564 if (ret < 0) 1565 return ret; 1566 1567 if (coeff_v1.host_buf_ptr) 1568 break; 1569 1570 usleep_range(1000, 2000); 1571 } 1572 1573 if (!coeff_v1.host_buf_ptr) { 1574 adsp_err(dsp, "Failed to acquire host buffer\n"); 1575 return -EIO; 1576 } 1577 1578 buf = wm_adsp_buffer_alloc(dsp); 1579 if (!buf) 1580 return -ENOMEM; 1581 1582 buf->host_buf_mem_type = cs_ctl->alg_region.type; 1583 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr); 1584 1585 ret = wm_adsp_buffer_populate(buf); 1586 if (ret < 0) 1587 goto err; 1588 1589 /* 1590 * v0 host_buffer coefficients didn't have versioning, so if the 1591 * control is one word, assume version 0. 1592 */ 1593 if (cs_ctl->len == 4) 1594 goto done; 1595 1596 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK; 1597 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT; 1598 1599 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) { 1600 adsp_err(dsp, 1601 "Host buffer coeff ver %u > supported version %u\n", 1602 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER); 1603 ret = -EINVAL; 1604 goto err; 1605 } 1606 1607 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name)); 1608 1609 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part, 1610 (char *)&coeff_v1.name); 1611 1612 done: 1613 list_add_tail(&buf->list, &dsp->buffer_list); 1614 1615 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n", 1616 buf->host_buf_ptr, version); 1617 1618 return version; 1619 1620 err: 1621 kfree(buf); 1622 1623 return ret; 1624 } 1625 1626 static int wm_adsp_buffer_init(struct wm_adsp *dsp) 1627 { 1628 struct cs_dsp_coeff_ctl *cs_ctl; 1629 int ret; 1630 1631 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) { 1632 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER) 1633 continue; 1634 1635 if (!cs_ctl->enabled) 1636 continue; 1637 1638 ret = wm_adsp_buffer_parse_coeff(cs_ctl); 1639 if (ret < 0) { 1640 adsp_err(dsp, "Failed to parse coeff: %d\n", ret); 1641 goto error; 1642 } else if (ret == 0) { 1643 /* Only one buffer supported for version 0 */ 1644 return 0; 1645 } 1646 } 1647 1648 if (list_empty(&dsp->buffer_list)) { 1649 /* Fall back to legacy support */ 1650 ret = wm_adsp_buffer_parse_legacy(dsp); 1651 if (ret == -ENODEV) 1652 adsp_info(dsp, "Legacy support not available\n"); 1653 else if (ret) 1654 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret); 1655 } 1656 1657 return 0; 1658 1659 error: 1660 wm_adsp_buffer_free(dsp); 1661 return ret; 1662 } 1663 1664 static int wm_adsp_buffer_free(struct wm_adsp *dsp) 1665 { 1666 struct wm_adsp_compr_buf *buf, *tmp; 1667 1668 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) { 1669 wm_adsp_compr_detach(buf->compr); 1670 1671 kfree(buf->name); 1672 kfree(buf->regions); 1673 list_del(&buf->list); 1674 kfree(buf); 1675 } 1676 1677 return 0; 1678 } 1679 1680 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf) 1681 { 1682 int ret; 1683 1684 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error); 1685 if (ret < 0) { 1686 compr_err(buf, "Failed to check buffer error: %d\n", ret); 1687 return ret; 1688 } 1689 if (buf->error != 0) { 1690 compr_err(buf, "Buffer error occurred: %d\n", buf->error); 1691 return -EIO; 1692 } 1693 1694 return 0; 1695 } 1696 1697 int wm_adsp_compr_trigger(struct snd_soc_component *component, 1698 struct snd_compr_stream *stream, int cmd) 1699 { 1700 struct wm_adsp_compr *compr = stream->runtime->private_data; 1701 struct wm_adsp *dsp = compr->dsp; 1702 int ret = 0; 1703 1704 compr_dbg(compr, "Trigger: %d\n", cmd); 1705 1706 mutex_lock(&dsp->cs_dsp.pwr_lock); 1707 1708 switch (cmd) { 1709 case SNDRV_PCM_TRIGGER_START: 1710 if (!wm_adsp_compr_attached(compr)) { 1711 ret = wm_adsp_compr_attach(compr); 1712 if (ret < 0) { 1713 compr_err(compr, "Failed to link buffer and stream: %d\n", 1714 ret); 1715 break; 1716 } 1717 } 1718 1719 ret = wm_adsp_buffer_get_error(compr->buf); 1720 if (ret < 0) 1721 break; 1722 1723 /* Trigger the IRQ at one fragment of data */ 1724 ret = wm_adsp_buffer_write(compr->buf, 1725 HOST_BUFFER_FIELD(high_water_mark), 1726 wm_adsp_compr_frag_words(compr)); 1727 if (ret < 0) { 1728 compr_err(compr, "Failed to set high water mark: %d\n", 1729 ret); 1730 break; 1731 } 1732 break; 1733 case SNDRV_PCM_TRIGGER_STOP: 1734 if (wm_adsp_compr_attached(compr)) 1735 wm_adsp_buffer_clear(compr->buf); 1736 break; 1737 default: 1738 ret = -EINVAL; 1739 break; 1740 } 1741 1742 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1743 1744 return ret; 1745 } 1746 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger); 1747 1748 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf) 1749 { 1750 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1; 1751 1752 return buf->regions[last_region].cumulative_size; 1753 } 1754 1755 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf) 1756 { 1757 u32 next_read_index, next_write_index; 1758 int write_index, read_index, avail; 1759 int ret; 1760 1761 /* Only sync read index if we haven't already read a valid index */ 1762 if (buf->read_index < 0) { 1763 ret = wm_adsp_buffer_read(buf, 1764 HOST_BUFFER_FIELD(next_read_index), 1765 &next_read_index); 1766 if (ret < 0) 1767 return ret; 1768 1769 read_index = sign_extend32(next_read_index, 23); 1770 1771 if (read_index < 0) { 1772 compr_dbg(buf, "Avail check on unstarted stream\n"); 1773 return 0; 1774 } 1775 1776 buf->read_index = read_index; 1777 } 1778 1779 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index), 1780 &next_write_index); 1781 if (ret < 0) 1782 return ret; 1783 1784 write_index = sign_extend32(next_write_index, 23); 1785 1786 avail = write_index - buf->read_index; 1787 if (avail < 0) 1788 avail += wm_adsp_buffer_size(buf); 1789 1790 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n", 1791 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE); 1792 1793 buf->avail = avail; 1794 1795 return 0; 1796 } 1797 1798 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp) 1799 { 1800 struct wm_adsp_compr_buf *buf; 1801 struct wm_adsp_compr *compr; 1802 int ret = 0; 1803 1804 mutex_lock(&dsp->cs_dsp.pwr_lock); 1805 1806 if (list_empty(&dsp->buffer_list)) { 1807 ret = -ENODEV; 1808 goto out; 1809 } 1810 1811 adsp_dbg(dsp, "Handling buffer IRQ\n"); 1812 1813 list_for_each_entry(buf, &dsp->buffer_list, list) { 1814 compr = buf->compr; 1815 1816 ret = wm_adsp_buffer_get_error(buf); 1817 if (ret < 0) 1818 goto out_notify; /* Wake poll to report error */ 1819 1820 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count), 1821 &buf->irq_count); 1822 if (ret < 0) { 1823 compr_err(buf, "Failed to get irq_count: %d\n", ret); 1824 goto out; 1825 } 1826 1827 ret = wm_adsp_buffer_update_avail(buf); 1828 if (ret < 0) { 1829 compr_err(buf, "Error reading avail: %d\n", ret); 1830 goto out; 1831 } 1832 1833 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2) 1834 ret = WM_ADSP_COMPR_VOICE_TRIGGER; 1835 1836 out_notify: 1837 if (compr && compr->stream) 1838 snd_compr_fragment_elapsed(compr->stream); 1839 } 1840 1841 out: 1842 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1843 1844 return ret; 1845 } 1846 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq); 1847 1848 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf) 1849 { 1850 if (buf->irq_count & 0x01) 1851 return 0; 1852 1853 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count); 1854 1855 buf->irq_count |= 0x01; 1856 1857 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack), 1858 buf->irq_count); 1859 } 1860 1861 int wm_adsp_compr_pointer(struct snd_soc_component *component, 1862 struct snd_compr_stream *stream, 1863 struct snd_compr_tstamp64 *tstamp) 1864 { 1865 struct wm_adsp_compr *compr = stream->runtime->private_data; 1866 struct wm_adsp *dsp = compr->dsp; 1867 struct wm_adsp_compr_buf *buf; 1868 int ret = 0; 1869 1870 compr_dbg(compr, "Pointer request\n"); 1871 1872 mutex_lock(&dsp->cs_dsp.pwr_lock); 1873 1874 buf = compr->buf; 1875 1876 if (dsp->fatal_error || !buf || buf->error) { 1877 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN); 1878 ret = -EIO; 1879 goto out; 1880 } 1881 1882 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1883 ret = wm_adsp_buffer_update_avail(buf); 1884 if (ret < 0) { 1885 compr_err(compr, "Error reading avail: %d\n", ret); 1886 goto out; 1887 } 1888 1889 /* 1890 * If we really have less than 1 fragment available tell the 1891 * DSP to inform us once a whole fragment is available. 1892 */ 1893 if (buf->avail < wm_adsp_compr_frag_words(compr)) { 1894 ret = wm_adsp_buffer_get_error(buf); 1895 if (ret < 0) { 1896 if (buf->error) 1897 snd_compr_stop_error(stream, 1898 SNDRV_PCM_STATE_XRUN); 1899 goto out; 1900 } 1901 1902 ret = wm_adsp_buffer_reenable_irq(buf); 1903 if (ret < 0) { 1904 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n", 1905 ret); 1906 goto out; 1907 } 1908 } 1909 } 1910 1911 tstamp->copied_total = compr->copied_total; 1912 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE; 1913 tstamp->sampling_rate = compr->sample_rate; 1914 1915 out: 1916 mutex_unlock(&dsp->cs_dsp.pwr_lock); 1917 1918 return ret; 1919 } 1920 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); 1921 1922 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) 1923 { 1924 struct wm_adsp_compr_buf *buf = compr->buf; 1925 unsigned int adsp_addr; 1926 int mem_type, nwords, max_read; 1927 int i, ret; 1928 1929 /* Calculate read parameters */ 1930 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) 1931 if (buf->read_index < buf->regions[i].cumulative_size) 1932 break; 1933 1934 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions) 1935 return -EINVAL; 1936 1937 mem_type = buf->regions[i].mem_type; 1938 adsp_addr = buf->regions[i].base_addr + 1939 (buf->read_index - buf->regions[i].offset); 1940 1941 max_read = wm_adsp_compr_frag_words(compr); 1942 nwords = buf->regions[i].cumulative_size - buf->read_index; 1943 1944 if (nwords > target) 1945 nwords = target; 1946 if (nwords > buf->avail) 1947 nwords = buf->avail; 1948 if (nwords > max_read) 1949 nwords = max_read; 1950 if (!nwords) 1951 return 0; 1952 1953 /* Read data from DSP */ 1954 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr, 1955 nwords, (__be32 *)compr->raw_buf); 1956 if (ret < 0) 1957 return ret; 1958 1959 cs_dsp_remove_padding(compr->raw_buf, nwords); 1960 1961 /* update read index to account for words read */ 1962 buf->read_index += nwords; 1963 if (buf->read_index == wm_adsp_buffer_size(buf)) 1964 buf->read_index = 0; 1965 1966 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index), 1967 buf->read_index); 1968 if (ret < 0) 1969 return ret; 1970 1971 /* update avail to account for words read */ 1972 buf->avail -= nwords; 1973 1974 return nwords; 1975 } 1976 1977 static int wm_adsp_compr_read(struct wm_adsp_compr *compr, 1978 char __user *buf, size_t count) 1979 { 1980 struct wm_adsp *dsp = compr->dsp; 1981 int ntotal = 0; 1982 int nwords, nbytes; 1983 1984 compr_dbg(compr, "Requested read of %zu bytes\n", count); 1985 1986 if (dsp->fatal_error || !compr->buf || compr->buf->error) { 1987 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN); 1988 return -EIO; 1989 } 1990 1991 count /= CS_DSP_DATA_WORD_SIZE; 1992 1993 do { 1994 nwords = wm_adsp_buffer_capture_block(compr, count); 1995 if (nwords < 0) { 1996 compr_err(compr, "Failed to capture block: %d\n", 1997 nwords); 1998 return nwords; 1999 } 2000 2001 nbytes = nwords * CS_DSP_DATA_WORD_SIZE; 2002 2003 compr_dbg(compr, "Read %d bytes\n", nbytes); 2004 2005 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) { 2006 compr_err(compr, "Failed to copy data to user: %d, %d\n", 2007 ntotal, nbytes); 2008 return -EFAULT; 2009 } 2010 2011 count -= nwords; 2012 ntotal += nbytes; 2013 } while (nwords > 0 && count > 0); 2014 2015 compr->copied_total += ntotal; 2016 2017 return ntotal; 2018 } 2019 2020 int wm_adsp_compr_copy(struct snd_soc_component *component, 2021 struct snd_compr_stream *stream, char __user *buf, 2022 size_t count) 2023 { 2024 struct wm_adsp_compr *compr = stream->runtime->private_data; 2025 struct wm_adsp *dsp = compr->dsp; 2026 int ret; 2027 2028 mutex_lock(&dsp->cs_dsp.pwr_lock); 2029 2030 if (stream->direction == SND_COMPRESS_CAPTURE) 2031 ret = wm_adsp_compr_read(compr, buf, count); 2032 else 2033 ret = -ENOTSUPP; 2034 2035 mutex_unlock(&dsp->cs_dsp.pwr_lock); 2036 2037 return ret; 2038 } 2039 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy); 2040 2041 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp) 2042 { 2043 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp); 2044 struct wm_adsp_compr *compr; 2045 2046 dsp->fatal_error = true; 2047 2048 list_for_each_entry(compr, &dsp->compr_list, list) { 2049 if (compr->stream) 2050 snd_compr_fragment_elapsed(compr->stream); 2051 } 2052 } 2053 2054 irqreturn_t wm_adsp2_bus_error(int irq, void *data) 2055 { 2056 struct wm_adsp *dsp = (struct wm_adsp *)data; 2057 2058 cs_dsp_adsp2_bus_error(&dsp->cs_dsp); 2059 2060 return IRQ_HANDLED; 2061 } 2062 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error); 2063 2064 irqreturn_t wm_halo_bus_error(int irq, void *data) 2065 { 2066 struct wm_adsp *dsp = (struct wm_adsp *)data; 2067 2068 cs_dsp_halo_bus_error(&dsp->cs_dsp); 2069 2070 return IRQ_HANDLED; 2071 } 2072 EXPORT_SYMBOL_GPL(wm_halo_bus_error); 2073 2074 irqreturn_t wm_halo_wdt_expire(int irq, void *data) 2075 { 2076 struct wm_adsp *dsp = data; 2077 2078 cs_dsp_halo_wdt_expire(&dsp->cs_dsp); 2079 2080 return IRQ_HANDLED; 2081 } 2082 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire); 2083 2084 static const struct cs_dsp_client_ops wm_adsp1_client_ops = { 2085 .control_add = wm_adsp_control_add_cb, 2086 .control_remove = wm_adsp_control_remove, 2087 }; 2088 2089 static const struct cs_dsp_client_ops wm_adsp2_client_ops = { 2090 .control_add = wm_adsp_control_add_cb, 2091 .control_remove = wm_adsp_control_remove, 2092 .pre_run = wm_adsp_pre_run, 2093 .post_run = wm_adsp_event_post_run, 2094 .post_stop = wm_adsp_event_post_stop, 2095 .watchdog_expired = wm_adsp_fatal_error, 2096 }; 2097 2098 MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support"); 2099 MODULE_LICENSE("GPL v2"); 2100 MODULE_IMPORT_NS("FW_CS_DSP"); 2101