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module: Convert symbol namespace to string literal
[linux.git] / sound / soc / codecs / wm_adsp.c
blob91c8697c29c321176f93aa6316f891c6ec6ea181
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 &region->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");
Linux Kernel