1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * wm_adsp.c -- Wolfson ADSP support
4 *
5 * Copyright 2012 Wolfson Microelectronics plc
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10#include <linux/array_size.h>
11#include <linux/cleanup.h>
12#include <linux/ctype.h>
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/init.h>
16#include <linux/delay.h>
17#include <linux/firmware.h>
18#include <linux/list.h>
19#include <linux/pm.h>
20#include <linux/regmap.h>
21#include <linux/regulator/consumer.h>
22#include <linux/slab.h>
23#include <linux/string.h>
24#include <linux/workqueue.h>
25#include <linux/debugfs.h>
26#include <sound/core.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/soc.h>
30#include <sound/jack.h>
31#include <sound/initval.h>
32#include <sound/tlv.h>
33
34#include "wm_adsp.h"
35
36#define adsp_crit(_dsp, fmt, ...) \
37 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
38#define adsp_err(_dsp, fmt, ...) \
39 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
40#define adsp_warn(_dsp, fmt, ...) \
41 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
42#define adsp_info(_dsp, fmt, ...) \
43 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
44#define adsp_dbg(_dsp, fmt, ...) \
45 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
46
47#define compr_err(_obj, fmt, ...) \
48 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
49 ##__VA_ARGS__)
50#define compr_dbg(_obj, fmt, ...) \
51 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
52 ##__VA_ARGS__)
53
54#define ADSP_MAX_STD_CTRL_SIZE 512
55
56static const struct cs_dsp_client_ops wm_adsp1_client_ops;
57static const struct cs_dsp_client_ops wm_adsp2_client_ops;
58
59#define WM_ADSP_FW_MBC_VSS 0
60#define WM_ADSP_FW_HIFI 1
61#define WM_ADSP_FW_TX 2
62#define WM_ADSP_FW_TX_SPK 3
63#define WM_ADSP_FW_RX 4
64#define WM_ADSP_FW_RX_ANC 5
65#define WM_ADSP_FW_CTRL 6
66#define WM_ADSP_FW_ASR 7
67#define WM_ADSP_FW_TRACE 8
68#define WM_ADSP_FW_SPK_PROT 9
69#define WM_ADSP_FW_SPK_CALI 10
70#define WM_ADSP_FW_SPK_DIAG 11
71#define WM_ADSP_FW_MISC 12
72
73#define WM_ADSP_NUM_FW 13
74
75static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
76 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
77 [WM_ADSP_FW_HIFI] = "MasterHiFi",
78 [WM_ADSP_FW_TX] = "Tx",
79 [WM_ADSP_FW_TX_SPK] = "Tx Speaker",
80 [WM_ADSP_FW_RX] = "Rx",
81 [WM_ADSP_FW_RX_ANC] = "Rx ANC",
82 [WM_ADSP_FW_CTRL] = "Voice Ctrl",
83 [WM_ADSP_FW_ASR] = "ASR Assist",
84 [WM_ADSP_FW_TRACE] = "Dbg Trace",
85 [WM_ADSP_FW_SPK_PROT] = "Protection",
86 [WM_ADSP_FW_SPK_CALI] = "Calibration",
87 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
88 [WM_ADSP_FW_MISC] = "Misc",
89};
90
91struct wm_adsp_system_config_xm_hdr {
92 __be32 sys_enable;
93 __be32 fw_id;
94 __be32 fw_rev;
95 __be32 boot_status;
96 __be32 watchdog;
97 __be32 dma_buffer_size;
98 __be32 rdma[6];
99 __be32 wdma[8];
100 __be32 build_job_name[3];
101 __be32 build_job_number;
102} __packed;
103
104struct wm_halo_system_config_xm_hdr {
105 __be32 halo_heartbeat;
106 __be32 build_job_name[3];
107 __be32 build_job_number;
108} __packed;
109
110struct wm_adsp_alg_xm_struct {
111 __be32 magic;
112 __be32 smoothing;
113 __be32 threshold;
114 __be32 host_buf_ptr;
115 __be32 start_seq;
116 __be32 high_water_mark;
117 __be32 low_water_mark;
118 __be64 smoothed_power;
119} __packed;
120
121struct wm_adsp_host_buf_coeff_v1 {
122 __be32 host_buf_ptr; /* Host buffer pointer */
123 __be32 versions; /* Version numbers */
124 __be32 name[4]; /* The buffer name */
125} __packed;
126
127struct wm_adsp_buffer {
128 __be32 buf1_base; /* Base addr of first buffer area */
129 __be32 buf1_size; /* Size of buf1 area in DSP words */
130 __be32 buf2_base; /* Base addr of 2nd buffer area */
131 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */
132 __be32 buf3_base; /* Base addr of buf3 area */
133 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */
134 __be32 high_water_mark; /* Point at which IRQ is asserted */
135 __be32 irq_count; /* bits 1-31 count IRQ assertions */
136 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
137 __be32 next_write_index; /* word index of next write */
138 __be32 next_read_index; /* word index of next read */
139 __be32 error; /* error if any */
140 __be32 oldest_block_index; /* word index of oldest surviving */
141 __be32 requested_rewind; /* how many blocks rewind was done */
142 __be32 reserved_space; /* internal */
143 __be32 min_free; /* min free space since stream start */
144 __be32 blocks_written[2]; /* total blocks written (64 bit) */
145 __be32 words_written[2]; /* total words written (64 bit) */
146} __packed;
147
148struct wm_adsp_compr;
149
150struct wm_adsp_compr_buf {
151 struct list_head list;
152 struct wm_adsp *dsp;
153 struct wm_adsp_compr *compr;
154
155 struct wm_adsp_buffer_region *regions;
156 u32 host_buf_ptr;
157
158 u32 error;
159 u32 irq_count;
160 int read_index;
161 int avail;
162 int host_buf_mem_type;
163
164 char *name;
165};
166
167struct wm_adsp_compr {
168 struct list_head list;
169 struct wm_adsp *dsp;
170 struct wm_adsp_compr_buf *buf;
171
172 struct snd_compr_stream *stream;
173 struct snd_compressed_buffer size;
174
175 u32 *raw_buf;
176 u64 copied_total;
177
178 unsigned int sample_rate;
179
180 const char *name;
181};
182
183#define WM_ADSP_MIN_FRAGMENTS 1
184#define WM_ADSP_MAX_FRAGMENTS 256
185#define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE)
186#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE)
187
188#define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
189
190#define HOST_BUFFER_FIELD(field) \
191 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
192
193#define ALG_XM_FIELD(field) \
194 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
195
196#define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1
197
198#define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00
199#define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8
200
201static int wm_adsp_buffer_init(struct wm_adsp *dsp);
202static int wm_adsp_buffer_free(struct wm_adsp *dsp);
203
204struct wm_adsp_buffer_region {
205 unsigned int offset;
206 unsigned int cumulative_size;
207 unsigned int mem_type;
208 unsigned int base_addr;
209};
210
211struct wm_adsp_buffer_region_def {
212 unsigned int mem_type;
213 unsigned int base_offset;
214 unsigned int size_offset;
215};
216
217static const struct wm_adsp_buffer_region_def default_regions[] = {
218 {
219 .mem_type = WMFW_ADSP2_XM,
220 .base_offset = HOST_BUFFER_FIELD(buf1_base),
221 .size_offset = HOST_BUFFER_FIELD(buf1_size),
222 },
223 {
224 .mem_type = WMFW_ADSP2_XM,
225 .base_offset = HOST_BUFFER_FIELD(buf2_base),
226 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
227 },
228 {
229 .mem_type = WMFW_ADSP2_YM,
230 .base_offset = HOST_BUFFER_FIELD(buf3_base),
231 .size_offset = HOST_BUFFER_FIELD(buf_total_size),
232 },
233};
234
235struct wm_adsp_fw_caps {
236 u32 id;
237 struct snd_codec_desc desc;
238 int num_regions;
239 const struct wm_adsp_buffer_region_def *region_defs;
240};
241
242static const struct wm_adsp_fw_caps ctrl_caps[] = {
243 {
244 .id = SND_AUDIOCODEC_BESPOKE,
245 .desc = {
246 .max_ch = 8,
247 .sample_rates = { 16000 },
248 .num_sample_rates = 1,
249 .formats = SNDRV_PCM_FMTBIT_S16_LE,
250 },
251 .num_regions = ARRAY_SIZE(default_regions),
252 .region_defs = default_regions,
253 },
254};
255
256static const struct wm_adsp_fw_caps trace_caps[] = {
257 {
258 .id = SND_AUDIOCODEC_BESPOKE,
259 .desc = {
260 .max_ch = 8,
261 .sample_rates = {
262 4000, 8000, 11025, 12000, 16000, 22050,
263 24000, 32000, 44100, 48000, 64000, 88200,
264 96000, 176400, 192000
265 },
266 .num_sample_rates = 15,
267 .formats = SNDRV_PCM_FMTBIT_S16_LE,
268 },
269 .num_regions = ARRAY_SIZE(default_regions),
270 .region_defs = default_regions,
271 },
272};
273
274static const struct {
275 const char *file;
276 int compr_direction;
277 int num_caps;
278 const struct wm_adsp_fw_caps *caps;
279 bool voice_trigger;
280} wm_adsp_fw[WM_ADSP_NUM_FW] = {
281 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
282 [WM_ADSP_FW_HIFI] = { .file = "hifi" },
283 [WM_ADSP_FW_TX] = { .file = "tx" },
284 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
285 [WM_ADSP_FW_RX] = { .file = "rx" },
286 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
287 [WM_ADSP_FW_CTRL] = {
288 .file = "ctrl",
289 .compr_direction = SND_COMPRESS_CAPTURE,
290 .num_caps = ARRAY_SIZE(ctrl_caps),
291 .caps = ctrl_caps,
292 .voice_trigger = true,
293 },
294 [WM_ADSP_FW_ASR] = { .file = "asr" },
295 [WM_ADSP_FW_TRACE] = {
296 .file = "trace",
297 .compr_direction = SND_COMPRESS_CAPTURE,
298 .num_caps = ARRAY_SIZE(trace_caps),
299 .caps = trace_caps,
300 },
301 [WM_ADSP_FW_SPK_PROT] = {
302 .file = "spk-prot",
303 .compr_direction = SND_COMPRESS_CAPTURE,
304 .num_caps = ARRAY_SIZE(trace_caps),
305 .caps = trace_caps,
306 },
307 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
308 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
309 [WM_ADSP_FW_MISC] = { .file = "misc" },
310};
311
312struct wm_coeff_ctl {
313 const char *name;
314 struct cs_dsp_coeff_ctl *cs_ctl;
315 struct soc_bytes_ext bytes_ext;
316 struct work_struct work;
317};
318
319int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
320 struct snd_ctl_elem_value *ucontrol)
321{
322 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
323 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
324 struct wm_adsp *dsp = snd_soc_component_get_drvdata(c: component);
325
326 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
327
328 return 0;
329}
330EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
331
332int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
333 struct snd_ctl_elem_value *ucontrol)
334{
335 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
336 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
337 struct wm_adsp *dsp = snd_soc_component_get_drvdata(c: component);
338 int ret = 1;
339
340 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
341 return 0;
342
343 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
344 return -EINVAL;
345
346 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock);
347
348 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(head: &dsp[e->shift_l].compr_list))
349 ret = -EBUSY;
350 else
351 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
352
353 mutex_unlock(lock: &dsp[e->shift_l].cs_dsp.pwr_lock);
354
355 return ret;
356}
357EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
358
359const struct soc_enum wm_adsp_fw_enum[] = {
360 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
361 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
362 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
363 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
364 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
365 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
366 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
367};
368EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
369
370static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
371{
372 return container_of(ext, struct wm_coeff_ctl, bytes_ext);
373}
374
375static int wm_coeff_info(struct snd_kcontrol *kctl,
376 struct snd_ctl_elem_info *uinfo)
377{
378 struct soc_bytes_ext *bytes_ext =
379 (struct soc_bytes_ext *)kctl->private_value;
380 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
381 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
382
383 switch (cs_ctl->type) {
384 case WMFW_CTL_TYPE_ACKED:
385 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
386 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE;
387 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE;
388 uinfo->value.integer.step = 1;
389 uinfo->count = 1;
390 break;
391 default:
392 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
393 uinfo->count = cs_ctl->len;
394 break;
395 }
396
397 return 0;
398}
399
400static int wm_coeff_put(struct snd_kcontrol *kctl,
401 struct snd_ctl_elem_value *ucontrol)
402{
403 struct soc_bytes_ext *bytes_ext =
404 (struct soc_bytes_ext *)kctl->private_value;
405 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
406 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
407 char *p = ucontrol->value.bytes.data;
408
409 return cs_dsp_coeff_lock_and_write_ctrl(ctl: cs_ctl, off: 0, buf: p, len: cs_ctl->len);
410}
411
412static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
413 const unsigned int __user *bytes, unsigned int size)
414{
415 struct soc_bytes_ext *bytes_ext =
416 (struct soc_bytes_ext *)kctl->private_value;
417 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
418 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
419 void *scratch __free(kvfree) = vmemdup_user(bytes, size);
420
421 if (IS_ERR(ptr: scratch))
422 return PTR_ERR(ptr: scratch);
423
424 return cs_dsp_coeff_lock_and_write_ctrl(ctl: cs_ctl, off: 0, buf: scratch, len: size);
425}
426
427static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
428 struct snd_ctl_elem_value *ucontrol)
429{
430 struct soc_bytes_ext *bytes_ext =
431 (struct soc_bytes_ext *)kctl->private_value;
432 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
433 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
434 unsigned int val = ucontrol->value.integer.value[0];
435 int ret;
436
437 if (val == 0)
438 return 0; /* 0 means no event */
439
440 mutex_lock(&cs_ctl->dsp->pwr_lock);
441
442 if (cs_ctl->enabled)
443 ret = cs_dsp_coeff_write_acked_control(ctl: cs_ctl, event_id: val);
444 else
445 ret = -EPERM;
446
447 mutex_unlock(lock: &cs_ctl->dsp->pwr_lock);
448
449 if (ret < 0)
450 return ret;
451
452 return 1;
453}
454
455static int wm_coeff_get(struct snd_kcontrol *kctl,
456 struct snd_ctl_elem_value *ucontrol)
457{
458 struct soc_bytes_ext *bytes_ext =
459 (struct soc_bytes_ext *)kctl->private_value;
460 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
461 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
462 char *p = ucontrol->value.bytes.data;
463
464 return cs_dsp_coeff_lock_and_read_ctrl(ctl: cs_ctl, off: 0, buf: p, len: cs_ctl->len);
465}
466
467static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
468 unsigned int __user *bytes, unsigned int size)
469{
470 struct soc_bytes_ext *bytes_ext =
471 (struct soc_bytes_ext *)kctl->private_value;
472 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(ext: bytes_ext);
473 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
474 int ret = 0;
475
476 mutex_lock(&cs_ctl->dsp->pwr_lock);
477
478 ret = cs_dsp_coeff_read_ctrl(ctl: cs_ctl, off: 0, buf: cs_ctl->cache, len: size);
479
480 if (!ret && copy_to_user(to: bytes, from: cs_ctl->cache, n: size))
481 ret = -EFAULT;
482
483 mutex_unlock(lock: &cs_ctl->dsp->pwr_lock);
484
485 return ret;
486}
487
488static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
489 struct snd_ctl_elem_value *ucontrol)
490{
491 /*
492 * Although it's not useful to read an acked control, we must satisfy
493 * user-side assumptions that all controls are readable and that a
494 * write of the same value should be filtered out (it's valid to send
495 * the same event number again to the firmware). We therefore return 0,
496 * meaning "no event" so valid event numbers will always be a change
497 */
498 ucontrol->value.integer.value[0] = 0;
499
500 return 0;
501}
502
503static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
504{
505 unsigned int out, rd, wr, vol;
506
507 if (len > ADSP_MAX_STD_CTRL_SIZE) {
508 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
509 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
510 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
511
512 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
513 } else {
514 rd = SNDRV_CTL_ELEM_ACCESS_READ;
515 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
516 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
517
518 out = 0;
519 }
520
521 if (in) {
522 out |= rd;
523 if (in & WMFW_CTL_FLAG_WRITEABLE)
524 out |= wr;
525 if (in & WMFW_CTL_FLAG_VOLATILE)
526 out |= vol;
527 } else {
528 out |= rd | wr | vol;
529 }
530
531 return out;
532}
533
534static void wm_adsp_ctl_work(struct work_struct *work)
535{
536 struct wm_coeff_ctl *ctl = container_of(work,
537 struct wm_coeff_ctl,
538 work);
539 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
540 struct wm_adsp *dsp = container_of(cs_ctl->dsp,
541 struct wm_adsp,
542 cs_dsp);
543 struct snd_kcontrol_new *kcontrol;
544
545 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
546 if (!kcontrol)
547 return;
548
549 kcontrol->name = ctl->name;
550 kcontrol->info = wm_coeff_info;
551 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
552 kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
553 kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
554 kcontrol->access = wmfw_convert_flags(in: cs_ctl->flags, len: cs_ctl->len);
555
556 switch (cs_ctl->type) {
557 case WMFW_CTL_TYPE_ACKED:
558 kcontrol->get = wm_coeff_get_acked;
559 kcontrol->put = wm_coeff_put_acked;
560 break;
561 default:
562 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
563 ctl->bytes_ext.max = cs_ctl->len;
564 ctl->bytes_ext.get = wm_coeff_tlv_get;
565 ctl->bytes_ext.put = wm_coeff_tlv_put;
566 } else {
567 kcontrol->get = wm_coeff_get;
568 kcontrol->put = wm_coeff_put;
569 }
570 break;
571 }
572
573 snd_soc_add_component_controls(component: dsp->component, controls: kcontrol, num_controls: 1);
574
575 kfree(objp: kcontrol);
576}
577
578int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
579{
580 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
581 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
582 struct wm_coeff_ctl *ctl;
583 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
584 const char *region_name;
585 int ret;
586
587 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
588 return 0;
589
590 region_name = cs_dsp_mem_region_name(type: cs_ctl->alg_region.type);
591 if (!region_name) {
592 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
593 return -EINVAL;
594 }
595
596 switch (cs_dsp->wmfw_ver) {
597 case 0:
598 case 1:
599 ret = scnprintf(buf: name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
600 fmt: "%s %s %x", cs_dsp->name, region_name,
601 cs_ctl->alg_region.alg);
602 break;
603 case 2:
604 ret = scnprintf(buf: name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
605 fmt: "%s%c %.12s %x", cs_dsp->name, *region_name,
606 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
607 break;
608 default:
609 ret = scnprintf(buf: name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
610 fmt: "%s %.12s %x", cs_dsp->name,
611 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
612 break;
613 }
614
615 if (cs_ctl->subname) {
616 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
617 int skip = 0;
618
619 if (dsp->component->name_prefix)
620 avail -= strlen(dsp->component->name_prefix) + 1;
621
622 /* Truncate the subname from the start if it is too long */
623 if (cs_ctl->subname_len > avail)
624 skip = cs_ctl->subname_len - avail;
625
626 snprintf(buf: name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
627 fmt: " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
628 }
629
630 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
631 if (!ctl)
632 return -ENOMEM;
633 ctl->cs_ctl = cs_ctl;
634
635 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
636 if (!ctl->name) {
637 ret = -ENOMEM;
638 goto err_ctl;
639 }
640
641 cs_ctl->priv = ctl;
642
643 INIT_WORK(&ctl->work, wm_adsp_ctl_work);
644 schedule_work(work: &ctl->work);
645
646 return 0;
647
648err_ctl:
649 kfree(objp: ctl);
650
651 return ret;
652}
653EXPORT_SYMBOL_GPL(wm_adsp_control_add);
654
655static int wm_adsp_control_add_cb(struct cs_dsp_coeff_ctl *cs_ctl)
656{
657 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
658
659 if (dsp->control_add)
660 return (dsp->control_add)(dsp, cs_ctl);
661 else
662 return wm_adsp_control_add(cs_ctl);
663}
664
665static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
666{
667 struct wm_coeff_ctl *ctl = cs_ctl->priv;
668
669 cancel_work_sync(work: &ctl->work);
670
671 kfree(objp: ctl->name);
672 kfree(objp: ctl);
673}
674
675int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
676 unsigned int alg, void *buf, size_t len)
677{
678 struct cs_dsp_coeff_ctl *cs_ctl;
679 int ret;
680
681 mutex_lock(&dsp->cs_dsp.pwr_lock);
682 cs_ctl = cs_dsp_get_ctl(dsp: &dsp->cs_dsp, name, type, alg);
683 ret = cs_dsp_coeff_write_ctrl(ctl: cs_ctl, off: 0, buf, len);
684 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
685
686 if (ret < 0)
687 return ret;
688
689 return 0;
690}
691EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
692
693int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
694 unsigned int alg, void *buf, size_t len)
695{
696 int ret;
697
698 mutex_lock(&dsp->cs_dsp.pwr_lock);
699 ret = cs_dsp_coeff_read_ctrl(ctl: cs_dsp_get_ctl(dsp: &dsp->cs_dsp, name, type, alg),
700 off: 0, buf, len);
701 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
702
703 return ret;
704}
705EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
706
707static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
708 const struct firmware *wmfw_firmware,
709 char *wmfw_filename,
710 const struct firmware *coeff_firmware,
711 char *coeff_filename)
712{
713 release_firmware(fw: wmfw_firmware);
714 kfree(objp: wmfw_filename);
715
716 release_firmware(fw: coeff_firmware);
717 kfree(objp: coeff_filename);
718}
719
720static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
721 const struct firmware **firmware, char **filename,
722 const char *dir, const char *system_name,
723 const char *asoc_component_prefix,
724 const char *filetype)
725{
726 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
727 const char *fwf;
728 char *s, c;
729 int ret = 0;
730
731 if (dsp->fwf_name)
732 fwf = dsp->fwf_name;
733 else
734 fwf = dsp->cs_dsp.name;
735
736 if (system_name && asoc_component_prefix)
737 *filename = kasprintf(GFP_KERNEL, fmt: "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,
738 fwf, wm_adsp_fw[dsp->fw].file, system_name,
739 asoc_component_prefix, filetype);
740 else if (system_name)
741 *filename = kasprintf(GFP_KERNEL, fmt: "%s%s-%s-%s-%s.%s", dir, dsp->part,
742 fwf, wm_adsp_fw[dsp->fw].file, system_name,
743 filetype);
744 else
745 *filename = kasprintf(GFP_KERNEL, fmt: "%s%s-%s-%s.%s", dir, dsp->part, fwf,
746 wm_adsp_fw[dsp->fw].file, filetype);
747
748 if (*filename == NULL)
749 return -ENOMEM;
750
751 /*
752 * Make sure that filename is lower-case and any non alpha-numeric
753 * characters except full stop and forward slash are replaced with
754 * hyphens.
755 */
756 s = *filename;
757 while (*s) {
758 c = *s;
759 if (isalnum(c))
760 *s = tolower(c);
761 else if ((c != '.') && (c != '/'))
762 *s = '-';
763 s++;
764 }
765
766 ret = firmware_request_nowarn(fw: firmware, name: *filename, device: cs_dsp->dev);
767 if (ret != 0) {
768 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
769 kfree(objp: *filename);
770 *filename = NULL;
771 } else {
772 adsp_dbg(dsp, "Found '%s'\n", *filename);
773 }
774
775 return ret;
776}
777
778static const char * const cirrus_dir = "cirrus/";
779static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
780 const struct firmware **wmfw_firmware,
781 char **wmfw_filename,
782 const struct firmware **coeff_firmware,
783 char **coeff_filename)
784{
785 const char *system_name = dsp->system_name;
786 const char *suffix = dsp->component->name_prefix;
787 int ret = 0;
788
789 if (dsp->fwf_suffix)
790 suffix = dsp->fwf_suffix;
791
792 if (system_name && suffix) {
793 if (!wm_adsp_request_firmware_file(dsp, firmware: wmfw_firmware, filename: wmfw_filename,
794 dir: cirrus_dir, system_name,
795 asoc_component_prefix: suffix, filetype: "wmfw")) {
796 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
797 dir: cirrus_dir, system_name,
798 asoc_component_prefix: suffix, filetype: "bin");
799 return 0;
800 }
801 }
802
803 if (system_name) {
804 if (!wm_adsp_request_firmware_file(dsp, firmware: wmfw_firmware, filename: wmfw_filename,
805 dir: cirrus_dir, system_name,
806 NULL, filetype: "wmfw")) {
807 if (suffix)
808 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
809 dir: cirrus_dir, system_name,
810 asoc_component_prefix: suffix, filetype: "bin");
811
812 if (!*coeff_firmware)
813 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
814 dir: cirrus_dir, system_name,
815 NULL, filetype: "bin");
816 return 0;
817 }
818 }
819
820 /* Check system-specific bin without wmfw before falling back to generic */
821 if (dsp->wmfw_optional && system_name) {
822 if (suffix)
823 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
824 dir: cirrus_dir, system_name,
825 asoc_component_prefix: suffix, filetype: "bin");
826
827 if (!*coeff_firmware)
828 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
829 dir: cirrus_dir, system_name,
830 NULL, filetype: "bin");
831
832 if (*coeff_firmware)
833 return 0;
834 }
835
836 /* Check legacy location */
837 if (!wm_adsp_request_firmware_file(dsp, firmware: wmfw_firmware, filename: wmfw_filename,
838 dir: "", NULL, NULL, filetype: "wmfw")) {
839 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
840 dir: "", NULL, NULL, filetype: "bin");
841 return 0;
842 }
843
844 /* Fall back to generic wmfw and optional matching bin */
845 ret = wm_adsp_request_firmware_file(dsp, firmware: wmfw_firmware, filename: wmfw_filename,
846 dir: cirrus_dir, NULL, NULL, filetype: "wmfw");
847 if (!ret || dsp->wmfw_optional) {
848 wm_adsp_request_firmware_file(dsp, firmware: coeff_firmware, filename: coeff_filename,
849 dir: cirrus_dir, NULL, NULL, filetype: "bin");
850 return 0;
851 }
852
853 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
854 cirrus_dir, dsp->part,
855 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,
856 wm_adsp_fw[dsp->fw].file, system_name, suffix);
857
858 return -ENOENT;
859}
860
861static int wm_adsp_common_init(struct wm_adsp *dsp)
862{
863 INIT_LIST_HEAD(list: &dsp->compr_list);
864 INIT_LIST_HEAD(list: &dsp->buffer_list);
865
866 return 0;
867}
868
869int wm_adsp1_init(struct wm_adsp *dsp)
870{
871 int ret;
872
873 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
874
875 ret = cs_dsp_adsp1_init(dsp: &dsp->cs_dsp);
876 if (ret)
877 return ret;
878
879 return wm_adsp_common_init(dsp);
880}
881EXPORT_SYMBOL_GPL(wm_adsp1_init);
882
883int wm_adsp1_event(struct snd_soc_dapm_widget *w,
884 struct snd_kcontrol *kcontrol,
885 int event)
886{
887 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
888 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
889 struct wm_adsp *dsp = &dsps[w->shift];
890 int ret = 0;
891 char *wmfw_filename = NULL;
892 const struct firmware *wmfw_firmware = NULL;
893 char *coeff_filename = NULL;
894 const struct firmware *coeff_firmware = NULL;
895
896 dsp->component = component;
897
898 switch (event) {
899 case SND_SOC_DAPM_POST_PMU:
900 ret = wm_adsp_request_firmware_files(dsp,
901 wmfw_firmware: &wmfw_firmware, wmfw_filename: &wmfw_filename,
902 coeff_firmware: &coeff_firmware, coeff_filename: &coeff_filename);
903 if (ret)
904 break;
905
906 ret = cs_dsp_adsp1_power_up(dsp: &dsp->cs_dsp,
907 wmfw_firmware, wmfw_filename,
908 coeff_firmware, coeff_filename,
909 fw_name: wm_adsp_fw_text[dsp->fw]);
910
911 wm_adsp_release_firmware_files(dsp,
912 wmfw_firmware, wmfw_filename,
913 coeff_firmware, coeff_filename);
914 break;
915 case SND_SOC_DAPM_PRE_PMD:
916 cs_dsp_adsp1_power_down(dsp: &dsp->cs_dsp);
917 break;
918 default:
919 break;
920 }
921
922 return ret;
923}
924EXPORT_SYMBOL_GPL(wm_adsp1_event);
925
926int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
927{
928 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
929 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
930 struct wm_adsp *dsp = &dsps[w->shift];
931
932 return cs_dsp_set_dspclk(dsp: &dsp->cs_dsp, freq);
933}
934EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
935
936int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
937 struct snd_ctl_elem_value *ucontrol)
938{
939 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
940 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
941 struct soc_mixer_control *mc =
942 (struct soc_mixer_control *)kcontrol->private_value;
943 struct wm_adsp *dsp = &dsps[mc->shift - 1];
944
945 ucontrol->value.integer.value[0] = dsp->preloaded;
946
947 return 0;
948}
949EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
950
951int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
952 struct snd_ctl_elem_value *ucontrol)
953{
954 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
955 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
956 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
957 struct soc_mixer_control *mc =
958 (struct soc_mixer_control *)kcontrol->private_value;
959 struct wm_adsp *dsp = &dsps[mc->shift - 1];
960 char preload[32];
961
962 if (dsp->preloaded == ucontrol->value.integer.value[0])
963 return 0;
964
965 snprintf(buf: preload, ARRAY_SIZE(preload), fmt: "%s Preload", dsp->cs_dsp.name);
966
967 if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
968 snd_soc_dapm_force_enable_pin(dapm, pin: preload);
969 else
970 snd_soc_dapm_disable_pin(dapm, pin: preload);
971
972 snd_soc_dapm_sync(dapm);
973
974 flush_work(work: &dsp->boot_work);
975
976 dsp->preloaded = ucontrol->value.integer.value[0];
977
978 if (dsp->toggle_preload) {
979 snd_soc_dapm_disable_pin(dapm, pin: preload);
980 snd_soc_dapm_sync(dapm);
981 }
982
983 return 1;
984}
985EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
986
987int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)
988{
989 int ret = 0;
990 char *wmfw_filename = NULL;
991 const struct firmware *wmfw_firmware = NULL;
992 char *coeff_filename = NULL;
993 const struct firmware *coeff_firmware = NULL;
994
995 if (load_firmware) {
996 ret = wm_adsp_request_firmware_files(dsp,
997 wmfw_firmware: &wmfw_firmware, wmfw_filename: &wmfw_filename,
998 coeff_firmware: &coeff_firmware, coeff_filename: &coeff_filename);
999 if (ret)
1000 return ret;
1001 }
1002
1003 if (dsp->bin_mandatory && !coeff_firmware) {
1004 ret = -ENOENT;
1005 goto err;
1006 }
1007
1008 ret = cs_dsp_power_up(dsp: &dsp->cs_dsp,
1009 wmfw_firmware, wmfw_filename,
1010 coeff_firmware, coeff_filename,
1011 fw_name: wm_adsp_fw_text[dsp->fw]);
1012
1013err:
1014 wm_adsp_release_firmware_files(dsp,
1015 wmfw_firmware, wmfw_filename,
1016 coeff_firmware, coeff_filename);
1017
1018 return ret;
1019}
1020EXPORT_SYMBOL_GPL(wm_adsp_power_up);
1021
1022void wm_adsp_power_down(struct wm_adsp *dsp)
1023{
1024 cs_dsp_power_down(dsp: &dsp->cs_dsp);
1025}
1026EXPORT_SYMBOL_GPL(wm_adsp_power_down);
1027
1028static void wm_adsp_boot_work(struct work_struct *work)
1029{
1030 struct wm_adsp *dsp = container_of(work,
1031 struct wm_adsp,
1032 boot_work);
1033
1034 wm_adsp_power_up(dsp, true);
1035}
1036
1037int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1038 struct snd_kcontrol *kcontrol, int event)
1039{
1040 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
1041 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
1042 struct wm_adsp *dsp = &dsps[w->shift];
1043
1044 switch (event) {
1045 case SND_SOC_DAPM_PRE_PMU:
1046 queue_work(wq: system_dfl_wq, work: &dsp->boot_work);
1047 break;
1048 case SND_SOC_DAPM_PRE_PMD:
1049 wm_adsp_power_down(dsp);
1050 break;
1051 default:
1052 break;
1053 }
1054
1055 return 0;
1056}
1057EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1058
1059static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)
1060{
1061 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1062
1063 if (!dsp->pre_run)
1064 return 0;
1065
1066 return (*dsp->pre_run)(dsp);
1067}
1068
1069static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1070{
1071 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1072
1073 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1074 return wm_adsp_buffer_init(dsp);
1075
1076 return 0;
1077}
1078
1079static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1080{
1081 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1082
1083 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1084 wm_adsp_buffer_free(dsp);
1085
1086 dsp->fatal_error = false;
1087}
1088
1089int wm_adsp_run(struct wm_adsp *dsp)
1090{
1091 flush_work(work: &dsp->boot_work);
1092
1093 return cs_dsp_run(dsp: &dsp->cs_dsp);
1094}
1095EXPORT_SYMBOL_GPL(wm_adsp_run);
1096
1097void wm_adsp_stop(struct wm_adsp *dsp)
1098{
1099 cs_dsp_stop(dsp: &dsp->cs_dsp);
1100}
1101EXPORT_SYMBOL_GPL(wm_adsp_stop);
1102
1103int wm_adsp_event(struct snd_soc_dapm_widget *w,
1104 struct snd_kcontrol *kcontrol, int event)
1105{
1106 struct snd_soc_component *component = snd_soc_dapm_to_component(dapm: w->dapm);
1107 struct wm_adsp *dsps = snd_soc_component_get_drvdata(c: component);
1108 struct wm_adsp *dsp = &dsps[w->shift];
1109
1110 switch (event) {
1111 case SND_SOC_DAPM_POST_PMU:
1112 return wm_adsp_run(dsp);
1113 case SND_SOC_DAPM_PRE_PMD:
1114 wm_adsp_stop(dsp);
1115 return 0;
1116 default:
1117 return 0;
1118 }
1119}
1120EXPORT_SYMBOL_GPL(wm_adsp_event);
1121
1122int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1123{
1124 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
1125 char preload[32];
1126
1127 if (!dsp->cs_dsp.no_core_startstop) {
1128 snprintf(buf: preload, ARRAY_SIZE(preload), fmt: "%s Preload", dsp->cs_dsp.name);
1129 snd_soc_dapm_disable_pin(dapm, pin: preload);
1130 }
1131
1132 cs_dsp_init_debugfs(dsp: &dsp->cs_dsp, debugfs_root: component->debugfs_root);
1133
1134 dsp->component = component;
1135
1136 return 0;
1137}
1138EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
1139
1140int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
1141{
1142 cs_dsp_cleanup_debugfs(dsp: &dsp->cs_dsp);
1143
1144 return 0;
1145}
1146EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
1147
1148int 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: &dsp->cs_dsp);
1158 if (ret)
1159 return ret;
1160
1161 return wm_adsp_common_init(dsp);
1162}
1163EXPORT_SYMBOL_GPL(wm_adsp2_init);
1164
1165int 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: &dsp->cs_dsp);
1175 if (ret)
1176 return ret;
1177
1178 return wm_adsp_common_init(dsp);
1179}
1180EXPORT_SYMBOL_GPL(wm_halo_init);
1181
1182void wm_adsp2_remove(struct wm_adsp *dsp)
1183{
1184 cs_dsp_remove(dsp: &dsp->cs_dsp);
1185}
1186EXPORT_SYMBOL_GPL(wm_adsp2_remove);
1187
1188static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
1189{
1190 return compr->buf != NULL;
1191}
1192
1193static 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
1216static 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(stream: compr->stream);
1224
1225 if (wm_adsp_compr_attached(compr)) {
1226 compr->buf->compr = NULL;
1227 compr->buf = NULL;
1228 }
1229}
1230
1231int 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(new: &compr->list, head: &dsp->compr_list);
1273
1274 stream->runtime->private_data = compr;
1275
1276out:
1277 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
1278
1279 return ret;
1280}
1281EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
1282
1283int 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(entry: &compr->list);
1293
1294 kfree(objp: compr->raw_buf);
1295 kfree(objp: compr);
1296
1297 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
1298
1299 return 0;
1300}
1301EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
1302
1303static 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
1353static 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
1358int 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}
1384EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
1385
1386int 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}
1409EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
1410
1411static 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(dsp: &buf->dsp->cs_dsp, mem_type: buf->host_buf_mem_type,
1415 mem_addr: buf->host_buf_ptr + field_offset, data);
1416}
1417
1418static 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(dsp: &buf->dsp->cs_dsp, mem_type: buf->host_buf_mem_type,
1422 mem_addr: buf->host_buf_ptr + field_offset,
1423 data);
1424}
1425
1426static 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, field_offset: caps->region_defs[i].base_offset,
1445 data: &region->base_addr);
1446 if (ret < 0)
1447 goto err;
1448
1449 ret = wm_adsp_buffer_read(buf, field_offset: caps->region_defs[i].size_offset,
1450 data: &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
1464err:
1465 kfree(objp: buf->regions);
1466 return ret;
1467}
1468
1469static 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
1476static 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
1491static 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: &dsp->cs_dsp, WMFW_ADSP2_XM, id: 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: &dsp->cs_dsp, WMFW_ADSP2_XM, mem_addr: addr, data: &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: &dsp->cs_dsp, WMFW_ADSP2_XM, mem_addr: addr,
1521 data: &buf->host_buf_ptr);
1522 if (ret < 0)
1523 goto err;
1524
1525 if (buf->host_buf_ptr)
1526 break;
1527
1528 usleep_range(min: 1000, max: 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(new: &buf->list, head: &dsp->buffer_list);
1543
1544 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1545
1546 return 0;
1547
1548err:
1549 kfree(objp: buf);
1550
1551 return ret;
1552}
1553
1554static 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(ctl: cs_ctl, off: 0, buf: &coeff_v1,
1564 min((size_t)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(min: 1000, max: 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(buf: (u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1609
1610 buf->name = kasprintf(GFP_KERNEL, fmt: "%s-dsp-%s", dsp->part,
1611 (char *)&coeff_v1.name);
1612
1613done:
1614 list_add_tail(new: &buf->list, head: &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
1621err:
1622 kfree(objp: buf);
1623
1624 return ret;
1625}
1626
1627static 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(head: &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
1660error:
1661 wm_adsp_buffer_free(dsp);
1662 return ret;
1663}
1664
1665static 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(compr: buf->compr);
1671
1672 kfree(objp: buf->name);
1673 kfree(objp: buf->regions);
1674 list_del(entry: &buf->list);
1675 kfree(objp: buf);
1676 }
1677
1678 return 0;
1679}
1680
1681static 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), data: &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
1698int 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(buf: compr->buf);
1721 if (ret < 0)
1722 break;
1723
1724 /* Trigger the IRQ at one fragment of data */
1725 ret = wm_adsp_buffer_write(buf: compr->buf,
1726 HOST_BUFFER_FIELD(high_water_mark),
1727 data: 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(buf: compr->buf);
1737 break;
1738 default:
1739 ret = -EINVAL;
1740 break;
1741 }
1742
1743 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
1744
1745 return ret;
1746}
1747EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
1748
1749static 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
1756static 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 data: &next_read_index);
1767 if (ret < 0)
1768 return ret;
1769
1770 read_index = sign_extend32(value: next_read_index, 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 data: &next_write_index);
1782 if (ret < 0)
1783 return ret;
1784
1785 write_index = sign_extend32(value: next_write_index, 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
1799int 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(head: &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 data: &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
1837out_notify:
1838 if (compr && compr->stream)
1839 snd_compr_fragment_elapsed(stream: compr->stream);
1840 }
1841
1842out:
1843 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
1844
1845 return ret;
1846}
1847EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
1848
1849static 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 data: buf->irq_count);
1860}
1861
1862int wm_adsp_compr_pointer(struct snd_soc_component *component,
1863 struct snd_compr_stream *stream,
1864 struct snd_compr_tstamp64 *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
1916out:
1917 mutex_unlock(lock: &dsp->cs_dsp.pwr_lock);
1918
1919 return ret;
1920}
1921EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
1922
1923static 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(dsp: &buf->dsp->cs_dsp, mem_type, mem_addr: adsp_addr,
1956 num_words: nwords, data: (__be32 *)compr->raw_buf);
1957 if (ret < 0)
1958 return ret;
1959
1960 cs_dsp_remove_padding(buf: 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 data: 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
1978static 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(stream: 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, target: 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(to: buf + ntotal, from: compr->raw_buf, n: 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
2021int 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(lock: &dsp->cs_dsp.pwr_lock);
2037
2038 return ret;
2039}
2040EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
2041
2042static 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(stream: compr->stream);
2052 }
2053}
2054
2055irqreturn_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: &dsp->cs_dsp);
2060
2061 return IRQ_HANDLED;
2062}
2063EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
2064
2065irqreturn_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: &dsp->cs_dsp);
2070
2071 return IRQ_HANDLED;
2072}
2073EXPORT_SYMBOL_GPL(wm_halo_bus_error);
2074
2075irqreturn_t wm_halo_wdt_expire(int irq, void *data)
2076{
2077 struct wm_adsp *dsp = data;
2078
2079 cs_dsp_halo_wdt_expire(dsp: &dsp->cs_dsp);
2080
2081 return IRQ_HANDLED;
2082}
2083EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
2084
2085static 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
2090static 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
2099MODULE_DESCRIPTION("Cirrus Logic ASoC DSP Support");
2100MODULE_LICENSE("GPL v2");
2101MODULE_IMPORT_NS("FW_CS_DSP");
2102

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