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

source code of linux/sound/soc/codecs/wm_adsp.c