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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * wm_adsp.c -- Wolfson ADSP support
4 *
5 * Copyright 2012 Wolfson Microelectronics plc
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10#include <linux/array_size.h>
11#include <linux/ctype.h>
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/init.h>
15#include <linux/delay.h>
16#include <linux/firmware.h>
17#include <linux/list.h>
18#include <linux/pm.h>
19#include <linux/regmap.h>
20#include <linux/regulator/consumer.h>
21#include <linux/slab.h>
22#include <linux/vmalloc.h>
23#include <linux/workqueue.h>
24#include <linux/debugfs.h>
25#include <sound/core.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29#include <sound/jack.h>
30#include <sound/initval.h>
31#include <sound/tlv.h>
32
33#include "wm_adsp.h"
34
35#define adsp_crit(_dsp, fmt, ...) \
36 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
37#define adsp_err(_dsp, fmt, ...) \
38 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
39#define adsp_warn(_dsp, fmt, ...) \
40 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
41#define adsp_info(_dsp, fmt, ...) \
42 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
43#define adsp_dbg(_dsp, fmt, ...) \
44 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
45
46#define compr_err(_obj, fmt, ...) \
47 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
48 ##__VA_ARGS__)
49#define compr_dbg(_obj, fmt, ...) \
50 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
51 ##__VA_ARGS__)
52
53#define ADSP_MAX_STD_CTRL_SIZE 512
54
55static const struct cs_dsp_client_ops wm_adsp1_client_ops;
56static const struct cs_dsp_client_ops wm_adsp2_client_ops;
57
58#define WM_ADSP_FW_MBC_VSS 0
59#define WM_ADSP_FW_HIFI 1
60#define WM_ADSP_FW_TX 2
61#define WM_ADSP_FW_TX_SPK 3
62#define WM_ADSP_FW_RX 4
63#define WM_ADSP_FW_RX_ANC 5
64#define WM_ADSP_FW_CTRL 6
65#define WM_ADSP_FW_ASR 7
66#define WM_ADSP_FW_TRACE 8
67#define WM_ADSP_FW_SPK_PROT 9
68#define WM_ADSP_FW_SPK_CALI 10
69#define WM_ADSP_FW_SPK_DIAG 11
70#define WM_ADSP_FW_MISC 12
71
72#define WM_ADSP_NUM_FW 13
73
74static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
75 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
76 [WM_ADSP_FW_HIFI] = "MasterHiFi",
77 [WM_ADSP_FW_TX] = "Tx",
78 [WM_ADSP_FW_TX_SPK] = "Tx Speaker",
79 [WM_ADSP_FW_RX] = "Rx",
80 [WM_ADSP_FW_RX_ANC] = "Rx ANC",
81 [WM_ADSP_FW_CTRL] = "Voice Ctrl",
82 [WM_ADSP_FW_ASR] = "ASR Assist",
83 [WM_ADSP_FW_TRACE] = "Dbg Trace",
84 [WM_ADSP_FW_SPK_PROT] = "Protection",
85 [WM_ADSP_FW_SPK_CALI] = "Calibration",
86 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
87 [WM_ADSP_FW_MISC] = "Misc",
88};
89
90struct wm_adsp_system_config_xm_hdr {
91 __be32 sys_enable;
92 __be32 fw_id;
93 __be32 fw_rev;
94 __be32 boot_status;
95 __be32 watchdog;
96 __be32 dma_buffer_size;
97 __be32 rdma[6];
98 __be32 wdma[8];
99 __be32 build_job_name[3];
100 __be32 build_job_number;
101} __packed;
102
103struct wm_halo_system_config_xm_hdr {
104 __be32 halo_heartbeat;
105 __be32 build_job_name[3];
106 __be32 build_job_number;
107} __packed;
108
109struct wm_adsp_alg_xm_struct {
110 __be32 magic;
111 __be32 smoothing;
112 __be32 threshold;
113 __be32 host_buf_ptr;
114 __be32 start_seq;
115 __be32 high_water_mark;
116 __be32 low_water_mark;
117 __be64 smoothed_power;
118} __packed;
119
120struct wm_adsp_host_buf_coeff_v1 {
121 __be32 host_buf_ptr; /* Host buffer pointer */
122 __be32 versions; /* Version numbers */
123 __be32 name[4]; /* The buffer name */
124} __packed;
125
126struct wm_adsp_buffer {
127 __be32 buf1_base; /* Base addr of first buffer area */
128 __be32 buf1_size; /* Size of buf1 area in DSP words */
129 __be32 buf2_base; /* Base addr of 2nd buffer area */
130 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */
131 __be32 buf3_base; /* Base addr of buf3 area */
132 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */
133 __be32 high_water_mark; /* Point at which IRQ is asserted */
134 __be32 irq_count; /* bits 1-31 count IRQ assertions */
135 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
136 __be32 next_write_index; /* word index of next write */
137 __be32 next_read_index; /* word index of next read */
138 __be32 error; /* error if any */
139 __be32 oldest_block_index; /* word index of oldest surviving */
140 __be32 requested_rewind; /* how many blocks rewind was done */
141 __be32 reserved_space; /* internal */
142 __be32 min_free; /* min free space since stream start */
143 __be32 blocks_written[2]; /* total blocks written (64 bit) */
144 __be32 words_written[2]; /* total words written (64 bit) */
145} __packed;
146
147struct wm_adsp_compr;
148
149struct wm_adsp_compr_buf {
150 struct list_head list;
151 struct wm_adsp *dsp;
152 struct wm_adsp_compr *compr;
153
154 struct wm_adsp_buffer_region *regions;
155 u32 host_buf_ptr;
156
157 u32 error;
158 u32 irq_count;
159 int read_index;
160 int avail;
161 int host_buf_mem_type;
162
163 char *name;
164};
165
166struct wm_adsp_compr {
167 struct list_head list;
168 struct wm_adsp *dsp;
169 struct wm_adsp_compr_buf *buf;
170
171 struct snd_compr_stream *stream;
172 struct snd_compressed_buffer size;
173
174 u32 *raw_buf;
175 unsigned int copied_total;
176
177 unsigned int sample_rate;
178
179 const char *name;
180};
181
182#define WM_ADSP_MIN_FRAGMENTS 1
183#define WM_ADSP_MAX_FRAGMENTS 256
184#define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE)
185#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE)
186
187#define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
188
189#define HOST_BUFFER_FIELD(field) \
190 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
191
192#define ALG_XM_FIELD(field) \
193 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
194
195#define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1
196
197#define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00
198#define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8
199
200static int wm_adsp_buffer_init(struct wm_adsp *dsp);
201static int wm_adsp_buffer_free(struct wm_adsp *dsp);
202
203struct wm_adsp_buffer_region {
204 unsigned int offset;
205 unsigned int cumulative_size;
206 unsigned int mem_type;
207 unsigned int base_addr;
208};
209
210struct wm_adsp_buffer_region_def {
211 unsigned int mem_type;
212 unsigned int base_offset;
213 unsigned int size_offset;
214};
215
216static const struct wm_adsp_buffer_region_def default_regions[] = {
217 {
218 .mem_type = WMFW_ADSP2_XM,
219 .base_offset = HOST_BUFFER_FIELD(buf1_base),
220 .size_offset = HOST_BUFFER_FIELD(buf1_size),
221 },
222 {
223 .mem_type = WMFW_ADSP2_XM,
224 .base_offset = HOST_BUFFER_FIELD(buf2_base),
225 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
226 },
227 {
228 .mem_type = WMFW_ADSP2_YM,
229 .base_offset = HOST_BUFFER_FIELD(buf3_base),
230 .size_offset = HOST_BUFFER_FIELD(buf_total_size),
231 },
232};
233
234struct wm_adsp_fw_caps {
235 u32 id;
236 struct snd_codec_desc desc;
237 int num_regions;
238 const struct wm_adsp_buffer_region_def *region_defs;
239};
240
241static const struct wm_adsp_fw_caps ctrl_caps[] = {
242 {
243 .id = SND_AUDIOCODEC_BESPOKE,
244 .desc = {
245 .max_ch = 8,
246 .sample_rates = { 16000 },
247 .num_sample_rates = 1,
248 .formats = SNDRV_PCM_FMTBIT_S16_LE,
249 },
250 .num_regions = ARRAY_SIZE(default_regions),
251 .region_defs = default_regions,
252 },
253};
254
255static const struct wm_adsp_fw_caps trace_caps[] = {
256 {
257 .id = SND_AUDIOCODEC_BESPOKE,
258 .desc = {
259 .max_ch = 8,
260 .sample_rates = {
261 4000, 8000, 11025, 12000, 16000, 22050,
262 24000, 32000, 44100, 48000, 64000, 88200,
263 96000, 176400, 192000
264 },
265 .num_sample_rates = 15,
266 .formats = SNDRV_PCM_FMTBIT_S16_LE,
267 },
268 .num_regions = ARRAY_SIZE(default_regions),
269 .region_defs = default_regions,
270 },
271};
272
273static const struct {
274 const char *file;
275 int compr_direction;
276 int num_caps;
277 const struct wm_adsp_fw_caps *caps;
278 bool voice_trigger;
279} wm_adsp_fw[WM_ADSP_NUM_FW] = {
280 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
281 [WM_ADSP_FW_HIFI] = { .file = "hifi" },
282 [WM_ADSP_FW_TX] = { .file = "tx" },
283 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
284 [WM_ADSP_FW_RX] = { .file = "rx" },
285 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
286 [WM_ADSP_FW_CTRL] = {
287 .file = "ctrl",
288 .compr_direction = SND_COMPRESS_CAPTURE,
289 .num_caps = ARRAY_SIZE(ctrl_caps),
290 .caps = ctrl_caps,
291 .voice_trigger = true,
292 },
293 [WM_ADSP_FW_ASR] = { .file = "asr" },
294 [WM_ADSP_FW_TRACE] = {
295 .file = "trace",
296 .compr_direction = SND_COMPRESS_CAPTURE,
297 .num_caps = ARRAY_SIZE(trace_caps),
298 .caps = trace_caps,
299 },
300 [WM_ADSP_FW_SPK_PROT] = {
301 .file = "spk-prot",
302 .compr_direction = SND_COMPRESS_CAPTURE,
303 .num_caps = ARRAY_SIZE(trace_caps),
304 .caps = trace_caps,
305 },
306 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
307 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
308 [WM_ADSP_FW_MISC] = { .file = "misc" },
309};
310
311struct wm_coeff_ctl {
312 const char *name;
313 struct cs_dsp_coeff_ctl *cs_ctl;
314 struct soc_bytes_ext bytes_ext;
315 struct work_struct work;
316};
317
318int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_value *ucontrol)
320{
321 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
322 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
323 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
324
325 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
326
327 return 0;
328}
329EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
330
331int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
332 struct snd_ctl_elem_value *ucontrol)
333{
334 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
335 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
336 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
337 int ret = 1;
338
339 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
340 return 0;
341
342 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
343 return -EINVAL;
344
345 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock);
346
347 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list))
348 ret = -EBUSY;
349 else
350 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
351
352 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock);
353
354 return ret;
355}
356EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
357
358const struct soc_enum wm_adsp_fw_enum[] = {
359 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
360 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
361 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
362 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
363 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
364 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
365 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
366};
367EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
368
369static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
370{
371 return container_of(ext, struct wm_coeff_ctl, bytes_ext);
372}
373
374static int wm_coeff_info(struct snd_kcontrol *kctl,
375 struct snd_ctl_elem_info *uinfo)
376{
377 struct soc_bytes_ext *bytes_ext =
378 (struct soc_bytes_ext *)kctl->private_value;
379 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
380 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
381
382 switch (cs_ctl->type) {
383 case WMFW_CTL_TYPE_ACKED:
384 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
385 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE;
386 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE;
387 uinfo->value.integer.step = 1;
388 uinfo->count = 1;
389 break;
390 default:
391 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
392 uinfo->count = cs_ctl->len;
393 break;
394 }
395
396 return 0;
397}
398
399static int wm_coeff_put(struct snd_kcontrol *kctl,
400 struct snd_ctl_elem_value *ucontrol)
401{
402 struct soc_bytes_ext *bytes_ext =
403 (struct soc_bytes_ext *)kctl->private_value;
404 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
405 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
406 char *p = ucontrol->value.bytes.data;
407
408 return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
409}
410
411static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
412 const unsigned int __user *bytes, unsigned int size)
413{
414 struct soc_bytes_ext *bytes_ext =
415 (struct soc_bytes_ext *)kctl->private_value;
416 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
417 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
418 void *scratch;
419 int ret = 0;
420
421 scratch = vmalloc(size);
422 if (!scratch)
423 return -ENOMEM;
424
425 if (copy_from_user(scratch, bytes, size))
426 ret = -EFAULT;
427 else
428 ret = cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, scratch, size);
429
430 vfree(scratch);
431
432 return ret;
433}
434
435static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
436 struct snd_ctl_elem_value *ucontrol)
437{
438 struct soc_bytes_ext *bytes_ext =
439 (struct soc_bytes_ext *)kctl->private_value;
440 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
441 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
442 unsigned int val = ucontrol->value.integer.value[0];
443 int ret;
444
445 if (val == 0)
446 return 0; /* 0 means no event */
447
448 mutex_lock(&cs_ctl->dsp->pwr_lock);
449
450 if (cs_ctl->enabled)
451 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val);
452 else
453 ret = -EPERM;
454
455 mutex_unlock(&cs_ctl->dsp->pwr_lock);
456
457 if (ret < 0)
458 return ret;
459
460 return 1;
461}
462
463static int wm_coeff_get(struct snd_kcontrol *kctl,
464 struct snd_ctl_elem_value *ucontrol)
465{
466 struct soc_bytes_ext *bytes_ext =
467 (struct soc_bytes_ext *)kctl->private_value;
468 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
469 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
470 char *p = ucontrol->value.bytes.data;
471
472 return cs_dsp_coeff_lock_and_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
473}
474
475static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
476 unsigned int __user *bytes, unsigned int size)
477{
478 struct soc_bytes_ext *bytes_ext =
479 (struct soc_bytes_ext *)kctl->private_value;
480 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
481 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
482 int ret = 0;
483
484 mutex_lock(&cs_ctl->dsp->pwr_lock);
485
486 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size);
487
488 if (!ret && copy_to_user(bytes, cs_ctl->cache, size))
489 ret = -EFAULT;
490
491 mutex_unlock(&cs_ctl->dsp->pwr_lock);
492
493 return ret;
494}
495
496static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
497 struct snd_ctl_elem_value *ucontrol)
498{
499 /*
500 * Although it's not useful to read an acked control, we must satisfy
501 * user-side assumptions that all controls are readable and that a
502 * write of the same value should be filtered out (it's valid to send
503 * the same event number again to the firmware). We therefore return 0,
504 * meaning "no event" so valid event numbers will always be a change
505 */
506 ucontrol->value.integer.value[0] = 0;
507
508 return 0;
509}
510
511static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
512{
513 unsigned int out, rd, wr, vol;
514
515 if (len > ADSP_MAX_STD_CTRL_SIZE) {
516 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
517 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
518 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
519
520 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
521 } else {
522 rd = SNDRV_CTL_ELEM_ACCESS_READ;
523 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
524 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
525
526 out = 0;
527 }
528
529 if (in) {
530 out |= rd;
531 if (in & WMFW_CTL_FLAG_WRITEABLE)
532 out |= wr;
533 if (in & WMFW_CTL_FLAG_VOLATILE)
534 out |= vol;
535 } else {
536 out |= rd | wr | vol;
537 }
538
539 return out;
540}
541
542static void wm_adsp_ctl_work(struct work_struct *work)
543{
544 struct wm_coeff_ctl *ctl = container_of(work,
545 struct wm_coeff_ctl,
546 work);
547 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
548 struct wm_adsp *dsp = container_of(cs_ctl->dsp,
549 struct wm_adsp,
550 cs_dsp);
551 struct snd_kcontrol_new *kcontrol;
552
553 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
554 if (!kcontrol)
555 return;
556
557 kcontrol->name = ctl->name;
558 kcontrol->info = wm_coeff_info;
559 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
560 kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
561 kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
562 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len);
563
564 switch (cs_ctl->type) {
565 case WMFW_CTL_TYPE_ACKED:
566 kcontrol->get = wm_coeff_get_acked;
567 kcontrol->put = wm_coeff_put_acked;
568 break;
569 default:
570 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
571 ctl->bytes_ext.max = cs_ctl->len;
572 ctl->bytes_ext.get = wm_coeff_tlv_get;
573 ctl->bytes_ext.put = wm_coeff_tlv_put;
574 } else {
575 kcontrol->get = wm_coeff_get;
576 kcontrol->put = wm_coeff_put;
577 }
578 break;
579 }
580
581 snd_soc_add_component_controls(dsp->component, kcontrol, 1);
582
583 kfree(kcontrol);
584}
585
586int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
587{
588 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
589 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
590 struct wm_coeff_ctl *ctl;
591 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
592 const char *region_name;
593 int ret;
594
595 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
596 return 0;
597
598 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type);
599 if (!region_name) {
600 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
601 return -EINVAL;
602 }
603
604 switch (cs_dsp->wmfw_ver) {
605 case 0:
606 case 1:
607 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
608 "%s %s %x", cs_dsp->name, region_name,
609 cs_ctl->alg_region.alg);
610 break;
611 case 2:
612 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
613 "%s%c %.12s %x", cs_dsp->name, *region_name,
614 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
615 break;
616 default:
617 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
618 "%s %.12s %x", cs_dsp->name,
619 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
620 break;
621 }
622
623 if (cs_ctl->subname) {
624 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
625 int skip = 0;
626
627 if (dsp->component->name_prefix)
628 avail -= strlen(dsp->component->name_prefix) + 1;
629
630 /* Truncate the subname from the start if it is too long */
631 if (cs_ctl->subname_len > avail)
632 skip = cs_ctl->subname_len - avail;
633
634 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
635 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
636 }
637
638 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
639 if (!ctl)
640 return -ENOMEM;
641 ctl->cs_ctl = cs_ctl;
642
643 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
644 if (!ctl->name) {
645 ret = -ENOMEM;
646 goto err_ctl;
647 }
648
649 cs_ctl->priv = ctl;
650
651 INIT_WORK(&ctl->work, wm_adsp_ctl_work);
652 schedule_work(&ctl->work);
653
654 return 0;
655
656err_ctl:
657 kfree(ctl);
658
659 return ret;
660}
661EXPORT_SYMBOL_GPL(wm_adsp_control_add);
662
663static int wm_adsp_control_add_cb(struct cs_dsp_coeff_ctl *cs_ctl)
664{
665 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
666
667 if (dsp->control_add)
668 return (dsp->control_add)(dsp, cs_ctl);
669 else
670 return wm_adsp_control_add(cs_ctl);
671}
672
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(&ctl->work);
678
679 kfree(ctl->name);
680 kfree(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 int ret;
688
689 mutex_lock(&dsp->cs_dsp.pwr_lock);
690 cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
691 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
692 mutex_unlock(&dsp->cs_dsp.pwr_lock);
693
694 if (ret < 0)
695 return ret;
696
697 return 0;
698}
699EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
700
701int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
702 unsigned int alg, void *buf, size_t len)
703{
704 int ret;
705
706 mutex_lock(&dsp->cs_dsp.pwr_lock);
707 ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
708 0, buf, len);
709 mutex_unlock(&dsp->cs_dsp.pwr_lock);
710
711 return ret;
712}
713EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
714
715static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
716 const struct firmware *wmfw_firmware,
717 char *wmfw_filename,
718 const struct firmware *coeff_firmware,
719 char *coeff_filename)
720{
721 if (wmfw_firmware)
722 release_firmware(wmfw_firmware);
723 kfree(wmfw_filename);
724
725 if (coeff_firmware)
726 release_firmware(coeff_firmware);
727 kfree(coeff_filename);
728}
729
730static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
731 const struct firmware **firmware, char **filename,
732 const char *dir, const char *system_name,
733 const char *asoc_component_prefix,
734 const char *filetype)
735{
736 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
737 const char *fwf;
738 char *s, c;
739 int ret = 0;
740
741 if (dsp->fwf_name)
742 fwf = dsp->fwf_name;
743 else
744 fwf = dsp->cs_dsp.name;
745
746 if (system_name && asoc_component_prefix)
747 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,
748 fwf, wm_adsp_fw[dsp->fw].file, system_name,
749 asoc_component_prefix, filetype);
750 else if (system_name)
751 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part,
752 fwf, wm_adsp_fw[dsp->fw].file, system_name,
753 filetype);
754 else
755 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf,
756 wm_adsp_fw[dsp->fw].file, filetype);
757
758 if (*filename == NULL)
759 return -ENOMEM;
760
761 /*
762 * Make sure that filename is lower-case and any non alpha-numeric
763 * characters except full stop and forward slash are replaced with
764 * hyphens.
765 */
766 s = *filename;
767 while (*s) {
768 c = *s;
769 if (isalnum(c))
770 *s = tolower(c);
771 else if ((c != '.') && (c != '/'))
772 *s = '-';
773 s++;
774 }
775
776 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev);
777 if (ret != 0) {
778 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
779 kfree(*filename);
780 *filename = NULL;
781 } else {
782 adsp_dbg(dsp, "Found '%s'\n", *filename);
783 }
784
785 return ret;
786}
787
788static const char *cirrus_dir = "cirrus/";
789static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
790 const struct firmware **wmfw_firmware,
791 char **wmfw_filename,
792 const struct firmware **coeff_firmware,
793 char **coeff_filename)
794{
795 const char *system_name = dsp->system_name;
796 const char *asoc_component_prefix = dsp->component->name_prefix;
797 int ret = 0;
798
799 if (system_name && asoc_component_prefix) {
800 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
801 cirrus_dir, system_name,
802 asoc_component_prefix, "wmfw")) {
803 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
804 cirrus_dir, system_name,
805 asoc_component_prefix, "bin");
806 return 0;
807 }
808 }
809
810 if (system_name) {
811 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
812 cirrus_dir, system_name,
813 NULL, "wmfw")) {
814 if (asoc_component_prefix)
815 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
816 cirrus_dir, system_name,
817 asoc_component_prefix, "bin");
818
819 if (!*coeff_firmware)
820 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
821 cirrus_dir, system_name,
822 NULL, "bin");
823 return 0;
824 }
825 }
826
827 /* Check system-specific bin without wmfw before falling back to generic */
828 if (dsp->wmfw_optional && system_name) {
829 if (asoc_component_prefix)
830 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
831 cirrus_dir, system_name,
832 asoc_component_prefix, "bin");
833
834 if (!*coeff_firmware)
835 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
836 cirrus_dir, system_name,
837 NULL, "bin");
838
839 if (*coeff_firmware)
840 return 0;
841 }
842
843 /* Check legacy location */
844 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
845 "", NULL, NULL, "wmfw")) {
846 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
847 "", NULL, NULL, "bin");
848 return 0;
849 }
850
851 /* Fall back to generic wmfw and optional matching bin */
852 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
853 cirrus_dir, NULL, NULL, "wmfw");
854 if (!ret || dsp->wmfw_optional) {
855 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
856 cirrus_dir, NULL, NULL, "bin");
857 return 0;
858 }
859
860 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
861 cirrus_dir, dsp->part,
862 dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,
863 wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix);
864
865 return -ENOENT;
866}
867
868static int wm_adsp_common_init(struct wm_adsp *dsp)
869{
870 INIT_LIST_HEAD(&dsp->compr_list);
871 INIT_LIST_HEAD(&dsp->buffer_list);
872
873 return 0;
874}
875
876int wm_adsp1_init(struct wm_adsp *dsp)
877{
878 int ret;
879
880 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
881
882 ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
883 if (ret)
884 return ret;
885
886 return wm_adsp_common_init(dsp);
887}
888EXPORT_SYMBOL_GPL(wm_adsp1_init);
889
890int wm_adsp1_event(struct snd_soc_dapm_widget *w,
891 struct snd_kcontrol *kcontrol,
892 int event)
893{
894 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
895 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
896 struct wm_adsp *dsp = &dsps[w->shift];
897 int ret = 0;
898 char *wmfw_filename = NULL;
899 const struct firmware *wmfw_firmware = NULL;
900 char *coeff_filename = NULL;
901 const struct firmware *coeff_firmware = NULL;
902
903 dsp->component = component;
904
905 switch (event) {
906 case SND_SOC_DAPM_POST_PMU:
907 ret = wm_adsp_request_firmware_files(dsp,
908 &wmfw_firmware, &wmfw_filename,
909 &coeff_firmware, &coeff_filename);
910 if (ret)
911 break;
912
913 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
914 wmfw_firmware, wmfw_filename,
915 coeff_firmware, coeff_filename,
916 wm_adsp_fw_text[dsp->fw]);
917
918 wm_adsp_release_firmware_files(dsp,
919 wmfw_firmware, wmfw_filename,
920 coeff_firmware, coeff_filename);
921 break;
922 case SND_SOC_DAPM_PRE_PMD:
923 cs_dsp_adsp1_power_down(&dsp->cs_dsp);
924 break;
925 default:
926 break;
927 }
928
929 return ret;
930}
931EXPORT_SYMBOL_GPL(wm_adsp1_event);
932
933int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
934{
935 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
936 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
937 struct wm_adsp *dsp = &dsps[w->shift];
938
939 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
940}
941EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
942
943int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
944 struct snd_ctl_elem_value *ucontrol)
945{
946 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
947 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
948 struct soc_mixer_control *mc =
949 (struct soc_mixer_control *)kcontrol->private_value;
950 struct wm_adsp *dsp = &dsps[mc->shift - 1];
951
952 ucontrol->value.integer.value[0] = dsp->preloaded;
953
954 return 0;
955}
956EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
957
958int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
959 struct snd_ctl_elem_value *ucontrol)
960{
961 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
962 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
963 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
964 struct soc_mixer_control *mc =
965 (struct soc_mixer_control *)kcontrol->private_value;
966 struct wm_adsp *dsp = &dsps[mc->shift - 1];
967 char preload[32];
968
969 if (dsp->preloaded == ucontrol->value.integer.value[0])
970 return 0;
971
972 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
973
974 if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
975 snd_soc_component_force_enable_pin(component, preload);
976 else
977 snd_soc_component_disable_pin(component, preload);
978
979 snd_soc_dapm_sync(dapm);
980
981 flush_work(&dsp->boot_work);
982
983 dsp->preloaded = ucontrol->value.integer.value[0];
984
985 if (dsp->toggle_preload) {
986 snd_soc_component_disable_pin(component, preload);
987 snd_soc_dapm_sync(dapm);
988 }
989
990 return 1;
991}
992EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
993
994int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)
995{
996 int ret = 0;
997 char *wmfw_filename = NULL;
998 const struct firmware *wmfw_firmware = NULL;
999 char *coeff_filename = NULL;
1000 const struct firmware *coeff_firmware = NULL;
1001
1002 if (load_firmware) {
1003 ret = wm_adsp_request_firmware_files(dsp,
1004 &wmfw_firmware, &wmfw_filename,
1005 &coeff_firmware, &coeff_filename);
1006 if (ret)
1007 return ret;
1008 }
1009
1010 ret = cs_dsp_power_up(&dsp->cs_dsp,
1011 wmfw_firmware, wmfw_filename,
1012 coeff_firmware, coeff_filename,
1013 wm_adsp_fw_text[dsp->fw]);
1014
1015 wm_adsp_release_firmware_files(dsp,
1016 wmfw_firmware, wmfw_filename,
1017 coeff_firmware, coeff_filename);
1018
1019 return ret;
1020}
1021EXPORT_SYMBOL_GPL(wm_adsp_power_up);
1022
1023void wm_adsp_power_down(struct wm_adsp *dsp)
1024{
1025 cs_dsp_power_down(&dsp->cs_dsp);
1026}
1027EXPORT_SYMBOL_GPL(wm_adsp_power_down);
1028
1029static void wm_adsp_boot_work(struct work_struct *work)
1030{
1031 struct wm_adsp *dsp = container_of(work,
1032 struct wm_adsp,
1033 boot_work);
1034
1035 wm_adsp_power_up(dsp, true);
1036}
1037
1038int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1039 struct snd_kcontrol *kcontrol, int event)
1040{
1041 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1042 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1043 struct wm_adsp *dsp = &dsps[w->shift];
1044
1045 switch (event) {
1046 case SND_SOC_DAPM_PRE_PMU:
1047 queue_work(system_unbound_wq, &dsp->boot_work);
1048 break;
1049 case SND_SOC_DAPM_PRE_PMD:
1050 wm_adsp_power_down(dsp);
1051 break;
1052 default:
1053 break;
1054 }
1055
1056 return 0;
1057}
1058EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1059
1060static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)
1061{
1062 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1063
1064 if (!dsp->pre_run)
1065 return 0;
1066
1067 return (*dsp->pre_run)(dsp);
1068}
1069
1070static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1071{
1072 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1073
1074 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1075 return wm_adsp_buffer_init(dsp);
1076
1077 return 0;
1078}
1079
1080static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1081{
1082 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1083
1084 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1085 wm_adsp_buffer_free(dsp);
1086
1087 dsp->fatal_error = false;
1088}
1089
1090int wm_adsp_run(struct wm_adsp *dsp)
1091{
1092 flush_work(&dsp->boot_work);
1093
1094 return cs_dsp_run(&dsp->cs_dsp);
1095}
1096EXPORT_SYMBOL_GPL(wm_adsp_run);
1097
1098void wm_adsp_stop(struct wm_adsp *dsp)
1099{
1100 cs_dsp_stop(&dsp->cs_dsp);
1101}
1102EXPORT_SYMBOL_GPL(wm_adsp_stop);
1103
1104int wm_adsp_event(struct snd_soc_dapm_widget *w,
1105 struct snd_kcontrol *kcontrol, int event)
1106{
1107 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1108 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1109 struct wm_adsp *dsp = &dsps[w->shift];
1110
1111 switch (event) {
1112 case SND_SOC_DAPM_POST_PMU:
1113 return wm_adsp_run(dsp);
1114 case SND_SOC_DAPM_PRE_PMD:
1115 wm_adsp_stop(dsp);
1116 return 0;
1117 default:
1118 return 0;
1119 }
1120}
1121EXPORT_SYMBOL_GPL(wm_adsp_event);
1122
1123int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1124{
1125 char preload[32];
1126
1127 if (!dsp->cs_dsp.no_core_startstop) {
1128 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
1129 snd_soc_component_disable_pin(component, preload);
1130 }
1131
1132 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
1133
1134 dsp->component = component;
1135
1136 return 0;
1137}
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->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->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->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->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(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(&compr->list, &dsp->compr_list);
1273
1274 stream->runtime->private_data = compr;
1275
1276out:
1277 mutex_unlock(&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(&compr->list);
1293
1294 kfree(compr->raw_buf);
1295 kfree(compr);
1296
1297 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1298
1299 return 0;
1300}
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(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1415 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(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1422 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, caps->region_defs[i].base_offset,
1445 ®ion->base_addr);
1446 if (ret < 0)
1447 goto err;
1448
1449 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
1450 &offset);
1451 if (ret < 0)
1452 goto err;
1453
1454 region->cumulative_size = offset;
1455
1456 compr_dbg(buf,
1457 "region=%d type=%d base=%08x off=%08x size=%08x\n",
1458 i, region->mem_type, region->base_addr,
1459 region->offset, region->cumulative_size);
1460 }
1461
1462 return 0;
1463
1464err:
1465 kfree(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->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
1499 if (!alg_region) {
1500 adsp_err(dsp, "No algorithm region found\n");
1501 return -EINVAL;
1502 }
1503
1504 xmalg = dsp->sys_config_size / sizeof(__be32);
1505
1506 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
1507 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
1508 if (ret < 0)
1509 return ret;
1510
1511 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
1512 return -ENODEV;
1513
1514 buf = wm_adsp_buffer_alloc(dsp);
1515 if (!buf)
1516 return -ENOMEM;
1517
1518 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
1519 for (i = 0; i < 5; ++i) {
1520 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
1521 &buf->host_buf_ptr);
1522 if (ret < 0)
1523 goto err;
1524
1525 if (buf->host_buf_ptr)
1526 break;
1527
1528 usleep_range(1000, 2000);
1529 }
1530
1531 if (!buf->host_buf_ptr) {
1532 ret = -EIO;
1533 goto err;
1534 }
1535
1536 buf->host_buf_mem_type = WMFW_ADSP2_XM;
1537
1538 ret = wm_adsp_buffer_populate(buf);
1539 if (ret < 0)
1540 goto err;
1541
1542 list_add_tail(&buf->list, &dsp->buffer_list);
1543
1544 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1545
1546 return 0;
1547
1548err:
1549 kfree(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(cs_ctl, 0, &coeff_v1,
1564 min(cs_ctl->len, sizeof(coeff_v1)));
1565 if (ret < 0)
1566 return ret;
1567
1568 if (coeff_v1.host_buf_ptr)
1569 break;
1570
1571 usleep_range(1000, 2000);
1572 }
1573
1574 if (!coeff_v1.host_buf_ptr) {
1575 adsp_err(dsp, "Failed to acquire host buffer\n");
1576 return -EIO;
1577 }
1578
1579 buf = wm_adsp_buffer_alloc(dsp);
1580 if (!buf)
1581 return -ENOMEM;
1582
1583 buf->host_buf_mem_type = cs_ctl->alg_region.type;
1584 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
1585
1586 ret = wm_adsp_buffer_populate(buf);
1587 if (ret < 0)
1588 goto err;
1589
1590 /*
1591 * v0 host_buffer coefficients didn't have versioning, so if the
1592 * control is one word, assume version 0.
1593 */
1594 if (cs_ctl->len == 4)
1595 goto done;
1596
1597 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
1598 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
1599
1600 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
1601 adsp_err(dsp,
1602 "Host buffer coeff ver %u > supported version %u\n",
1603 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
1604 ret = -EINVAL;
1605 goto err;
1606 }
1607
1608 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1609
1610 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
1611 (char *)&coeff_v1.name);
1612
1613done:
1614 list_add_tail(&buf->list, &dsp->buffer_list);
1615
1616 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
1617 buf->host_buf_ptr, version);
1618
1619 return version;
1620
1621err:
1622 kfree(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(&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(buf->compr);
1671
1672 kfree(buf->name);
1673 kfree(buf->regions);
1674 list_del(&buf->list);
1675 kfree(buf);
1676 }
1677
1678 return 0;
1679}
1680
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), &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(compr->buf);
1721 if (ret < 0)
1722 break;
1723
1724 /* Trigger the IRQ at one fragment of data */
1725 ret = wm_adsp_buffer_write(compr->buf,
1726 HOST_BUFFER_FIELD(high_water_mark),
1727 wm_adsp_compr_frag_words(compr));
1728 if (ret < 0) {
1729 compr_err(compr, "Failed to set high water mark: %d\n",
1730 ret);
1731 break;
1732 }
1733 break;
1734 case SNDRV_PCM_TRIGGER_STOP:
1735 if (wm_adsp_compr_attached(compr))
1736 wm_adsp_buffer_clear(compr->buf);
1737 break;
1738 default:
1739 ret = -EINVAL;
1740 break;
1741 }
1742
1743 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1744
1745 return ret;
1746}
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 &next_read_index);
1767 if (ret < 0)
1768 return ret;
1769
1770 read_index = sign_extend32(next_read_index, 23);
1771
1772 if (read_index < 0) {
1773 compr_dbg(buf, "Avail check on unstarted stream\n");
1774 return 0;
1775 }
1776
1777 buf->read_index = read_index;
1778 }
1779
1780 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
1781 &next_write_index);
1782 if (ret < 0)
1783 return ret;
1784
1785 write_index = sign_extend32(next_write_index, 23);
1786
1787 avail = write_index - buf->read_index;
1788 if (avail < 0)
1789 avail += wm_adsp_buffer_size(buf);
1790
1791 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
1792 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);
1793
1794 buf->avail = avail;
1795
1796 return 0;
1797}
1798
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(&dsp->buffer_list)) {
1808 ret = -ENODEV;
1809 goto out;
1810 }
1811
1812 adsp_dbg(dsp, "Handling buffer IRQ\n");
1813
1814 list_for_each_entry(buf, &dsp->buffer_list, list) {
1815 compr = buf->compr;
1816
1817 ret = wm_adsp_buffer_get_error(buf);
1818 if (ret < 0)
1819 goto out_notify; /* Wake poll to report error */
1820
1821 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
1822 &buf->irq_count);
1823 if (ret < 0) {
1824 compr_err(buf, "Failed to get irq_count: %d\n", ret);
1825 goto out;
1826 }
1827
1828 ret = wm_adsp_buffer_update_avail(buf);
1829 if (ret < 0) {
1830 compr_err(buf, "Error reading avail: %d\n", ret);
1831 goto out;
1832 }
1833
1834 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
1835 ret = WM_ADSP_COMPR_VOICE_TRIGGER;
1836
1837out_notify:
1838 if (compr && compr->stream)
1839 snd_compr_fragment_elapsed(compr->stream);
1840 }
1841
1842out:
1843 mutex_unlock(&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 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_tstamp *tstamp)
1865{
1866 struct wm_adsp_compr *compr = stream->runtime->private_data;
1867 struct wm_adsp *dsp = compr->dsp;
1868 struct wm_adsp_compr_buf *buf;
1869 int ret = 0;
1870
1871 compr_dbg(compr, "Pointer request\n");
1872
1873 mutex_lock(&dsp->cs_dsp.pwr_lock);
1874
1875 buf = compr->buf;
1876
1877 if (dsp->fatal_error || !buf || buf->error) {
1878 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
1879 ret = -EIO;
1880 goto out;
1881 }
1882
1883 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1884 ret = wm_adsp_buffer_update_avail(buf);
1885 if (ret < 0) {
1886 compr_err(compr, "Error reading avail: %d\n", ret);
1887 goto out;
1888 }
1889
1890 /*
1891 * If we really have less than 1 fragment available tell the
1892 * DSP to inform us once a whole fragment is available.
1893 */
1894 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1895 ret = wm_adsp_buffer_get_error(buf);
1896 if (ret < 0) {
1897 if (buf->error)
1898 snd_compr_stop_error(stream,
1899 SNDRV_PCM_STATE_XRUN);
1900 goto out;
1901 }
1902
1903 ret = wm_adsp_buffer_reenable_irq(buf);
1904 if (ret < 0) {
1905 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
1906 ret);
1907 goto out;
1908 }
1909 }
1910 }
1911
1912 tstamp->copied_total = compr->copied_total;
1913 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
1914 tstamp->sampling_rate = compr->sample_rate;
1915
1916out:
1917 mutex_unlock(&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(&buf->dsp->cs_dsp, mem_type, adsp_addr,
1956 nwords, (__be32 *)compr->raw_buf);
1957 if (ret < 0)
1958 return ret;
1959
1960 cs_dsp_remove_padding(compr->raw_buf, nwords);
1961
1962 /* update read index to account for words read */
1963 buf->read_index += nwords;
1964 if (buf->read_index == wm_adsp_buffer_size(buf))
1965 buf->read_index = 0;
1966
1967 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
1968 buf->read_index);
1969 if (ret < 0)
1970 return ret;
1971
1972 /* update avail to account for words read */
1973 buf->avail -= nwords;
1974
1975 return nwords;
1976}
1977
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(compr->stream, SNDRV_PCM_STATE_XRUN);
1989 return -EIO;
1990 }
1991
1992 count /= CS_DSP_DATA_WORD_SIZE;
1993
1994 do {
1995 nwords = wm_adsp_buffer_capture_block(compr, count);
1996 if (nwords < 0) {
1997 compr_err(compr, "Failed to capture block: %d\n",
1998 nwords);
1999 return nwords;
2000 }
2001
2002 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
2003
2004 compr_dbg(compr, "Read %d bytes\n", nbytes);
2005
2006 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
2007 compr_err(compr, "Failed to copy data to user: %d, %d\n",
2008 ntotal, nbytes);
2009 return -EFAULT;
2010 }
2011
2012 count -= nwords;
2013 ntotal += nbytes;
2014 } while (nwords > 0 && count > 0);
2015
2016 compr->copied_total += ntotal;
2017
2018 return ntotal;
2019}
2020
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(&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(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->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->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->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");
1/*
2 * wm_adsp.c -- Wolfson ADSP support
3 *
4 * Copyright 2012 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
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/pm_runtime.h>
21#include <linux/regmap.h>
22#include <linux/regulator/consumer.h>
23#include <linux/slab.h>
24#include <linux/vmalloc.h>
25#include <linux/workqueue.h>
26#include <linux/debugfs.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/pcm_params.h>
30#include <sound/soc.h>
31#include <sound/jack.h>
32#include <sound/initval.h>
33#include <sound/tlv.h>
34
35#include "wm_adsp.h"
36
37#define adsp_crit(_dsp, fmt, ...) \
38 dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
39#define adsp_err(_dsp, fmt, ...) \
40 dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
41#define adsp_warn(_dsp, fmt, ...) \
42 dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
43#define adsp_info(_dsp, fmt, ...) \
44 dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
45#define adsp_dbg(_dsp, fmt, ...) \
46 dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
47
48#define ADSP1_CONTROL_1 0x00
49#define ADSP1_CONTROL_2 0x02
50#define ADSP1_CONTROL_3 0x03
51#define ADSP1_CONTROL_4 0x04
52#define ADSP1_CONTROL_5 0x06
53#define ADSP1_CONTROL_6 0x07
54#define ADSP1_CONTROL_7 0x08
55#define ADSP1_CONTROL_8 0x09
56#define ADSP1_CONTROL_9 0x0A
57#define ADSP1_CONTROL_10 0x0B
58#define ADSP1_CONTROL_11 0x0C
59#define ADSP1_CONTROL_12 0x0D
60#define ADSP1_CONTROL_13 0x0F
61#define ADSP1_CONTROL_14 0x10
62#define ADSP1_CONTROL_15 0x11
63#define ADSP1_CONTROL_16 0x12
64#define ADSP1_CONTROL_17 0x13
65#define ADSP1_CONTROL_18 0x14
66#define ADSP1_CONTROL_19 0x16
67#define ADSP1_CONTROL_20 0x17
68#define ADSP1_CONTROL_21 0x18
69#define ADSP1_CONTROL_22 0x1A
70#define ADSP1_CONTROL_23 0x1B
71#define ADSP1_CONTROL_24 0x1C
72#define ADSP1_CONTROL_25 0x1E
73#define ADSP1_CONTROL_26 0x20
74#define ADSP1_CONTROL_27 0x21
75#define ADSP1_CONTROL_28 0x22
76#define ADSP1_CONTROL_29 0x23
77#define ADSP1_CONTROL_30 0x24
78#define ADSP1_CONTROL_31 0x26
79
80/*
81 * ADSP1 Control 19
82 */
83#define ADSP1_WDMA_BUFFER_LENGTH_MASK 0x00FF /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
84#define ADSP1_WDMA_BUFFER_LENGTH_SHIFT 0 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
85#define ADSP1_WDMA_BUFFER_LENGTH_WIDTH 8 /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
86
87
88/*
89 * ADSP1 Control 30
90 */
91#define ADSP1_DBG_CLK_ENA 0x0008 /* DSP1_DBG_CLK_ENA */
92#define ADSP1_DBG_CLK_ENA_MASK 0x0008 /* DSP1_DBG_CLK_ENA */
93#define ADSP1_DBG_CLK_ENA_SHIFT 3 /* DSP1_DBG_CLK_ENA */
94#define ADSP1_DBG_CLK_ENA_WIDTH 1 /* DSP1_DBG_CLK_ENA */
95#define ADSP1_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
96#define ADSP1_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
97#define ADSP1_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
98#define ADSP1_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
99#define ADSP1_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
100#define ADSP1_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
101#define ADSP1_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
102#define ADSP1_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
103#define ADSP1_START 0x0001 /* DSP1_START */
104#define ADSP1_START_MASK 0x0001 /* DSP1_START */
105#define ADSP1_START_SHIFT 0 /* DSP1_START */
106#define ADSP1_START_WIDTH 1 /* DSP1_START */
107
108/*
109 * ADSP1 Control 31
110 */
111#define ADSP1_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
112#define ADSP1_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
113#define ADSP1_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
114
115#define ADSP2_CONTROL 0x0
116#define ADSP2_CLOCKING 0x1
117#define ADSP2_STATUS1 0x4
118#define ADSP2_WDMA_CONFIG_1 0x30
119#define ADSP2_WDMA_CONFIG_2 0x31
120#define ADSP2_RDMA_CONFIG_1 0x34
121
122#define ADSP2_SCRATCH0 0x40
123#define ADSP2_SCRATCH1 0x41
124#define ADSP2_SCRATCH2 0x42
125#define ADSP2_SCRATCH3 0x43
126
127/*
128 * ADSP2 Control
129 */
130
131#define ADSP2_MEM_ENA 0x0010 /* DSP1_MEM_ENA */
132#define ADSP2_MEM_ENA_MASK 0x0010 /* DSP1_MEM_ENA */
133#define ADSP2_MEM_ENA_SHIFT 4 /* DSP1_MEM_ENA */
134#define ADSP2_MEM_ENA_WIDTH 1 /* DSP1_MEM_ENA */
135#define ADSP2_SYS_ENA 0x0004 /* DSP1_SYS_ENA */
136#define ADSP2_SYS_ENA_MASK 0x0004 /* DSP1_SYS_ENA */
137#define ADSP2_SYS_ENA_SHIFT 2 /* DSP1_SYS_ENA */
138#define ADSP2_SYS_ENA_WIDTH 1 /* DSP1_SYS_ENA */
139#define ADSP2_CORE_ENA 0x0002 /* DSP1_CORE_ENA */
140#define ADSP2_CORE_ENA_MASK 0x0002 /* DSP1_CORE_ENA */
141#define ADSP2_CORE_ENA_SHIFT 1 /* DSP1_CORE_ENA */
142#define ADSP2_CORE_ENA_WIDTH 1 /* DSP1_CORE_ENA */
143#define ADSP2_START 0x0001 /* DSP1_START */
144#define ADSP2_START_MASK 0x0001 /* DSP1_START */
145#define ADSP2_START_SHIFT 0 /* DSP1_START */
146#define ADSP2_START_WIDTH 1 /* DSP1_START */
147
148/*
149 * ADSP2 clocking
150 */
151#define ADSP2_CLK_SEL_MASK 0x0007 /* CLK_SEL_ENA */
152#define ADSP2_CLK_SEL_SHIFT 0 /* CLK_SEL_ENA */
153#define ADSP2_CLK_SEL_WIDTH 3 /* CLK_SEL_ENA */
154
155/*
156 * ADSP2 Status 1
157 */
158#define ADSP2_RAM_RDY 0x0001
159#define ADSP2_RAM_RDY_MASK 0x0001
160#define ADSP2_RAM_RDY_SHIFT 0
161#define ADSP2_RAM_RDY_WIDTH 1
162
163struct wm_adsp_buf {
164 struct list_head list;
165 void *buf;
166};
167
168static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
169 struct list_head *list)
170{
171 struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
172
173 if (buf == NULL)
174 return NULL;
175
176 buf->buf = vmalloc(len);
177 if (!buf->buf) {
178 vfree(buf);
179 return NULL;
180 }
181 memcpy(buf->buf, src, len);
182
183 if (list)
184 list_add_tail(&buf->list, list);
185
186 return buf;
187}
188
189static void wm_adsp_buf_free(struct list_head *list)
190{
191 while (!list_empty(list)) {
192 struct wm_adsp_buf *buf = list_first_entry(list,
193 struct wm_adsp_buf,
194 list);
195 list_del(&buf->list);
196 vfree(buf->buf);
197 kfree(buf);
198 }
199}
200
201#define WM_ADSP_FW_MBC_VSS 0
202#define WM_ADSP_FW_HIFI 1
203#define WM_ADSP_FW_TX 2
204#define WM_ADSP_FW_TX_SPK 3
205#define WM_ADSP_FW_RX 4
206#define WM_ADSP_FW_RX_ANC 5
207#define WM_ADSP_FW_CTRL 6
208#define WM_ADSP_FW_ASR 7
209#define WM_ADSP_FW_TRACE 8
210#define WM_ADSP_FW_SPK_PROT 9
211#define WM_ADSP_FW_MISC 10
212
213#define WM_ADSP_NUM_FW 11
214
215static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
216 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
217 [WM_ADSP_FW_HIFI] = "MasterHiFi",
218 [WM_ADSP_FW_TX] = "Tx",
219 [WM_ADSP_FW_TX_SPK] = "Tx Speaker",
220 [WM_ADSP_FW_RX] = "Rx",
221 [WM_ADSP_FW_RX_ANC] = "Rx ANC",
222 [WM_ADSP_FW_CTRL] = "Voice Ctrl",
223 [WM_ADSP_FW_ASR] = "ASR Assist",
224 [WM_ADSP_FW_TRACE] = "Dbg Trace",
225 [WM_ADSP_FW_SPK_PROT] = "Protection",
226 [WM_ADSP_FW_MISC] = "Misc",
227};
228
229struct wm_adsp_system_config_xm_hdr {
230 __be32 sys_enable;
231 __be32 fw_id;
232 __be32 fw_rev;
233 __be32 boot_status;
234 __be32 watchdog;
235 __be32 dma_buffer_size;
236 __be32 rdma[6];
237 __be32 wdma[8];
238 __be32 build_job_name[3];
239 __be32 build_job_number;
240};
241
242struct wm_adsp_alg_xm_struct {
243 __be32 magic;
244 __be32 smoothing;
245 __be32 threshold;
246 __be32 host_buf_ptr;
247 __be32 start_seq;
248 __be32 high_water_mark;
249 __be32 low_water_mark;
250 __be64 smoothed_power;
251};
252
253struct wm_adsp_buffer {
254 __be32 X_buf_base; /* XM base addr of first X area */
255 __be32 X_buf_size; /* Size of 1st X area in words */
256 __be32 X_buf_base2; /* XM base addr of 2nd X area */
257 __be32 X_buf_brk; /* Total X size in words */
258 __be32 Y_buf_base; /* YM base addr of Y area */
259 __be32 wrap; /* Total size X and Y in words */
260 __be32 high_water_mark; /* Point at which IRQ is asserted */
261 __be32 irq_count; /* bits 1-31 count IRQ assertions */
262 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
263 __be32 next_write_index; /* word index of next write */
264 __be32 next_read_index; /* word index of next read */
265 __be32 error; /* error if any */
266 __be32 oldest_block_index; /* word index of oldest surviving */
267 __be32 requested_rewind; /* how many blocks rewind was done */
268 __be32 reserved_space; /* internal */
269 __be32 min_free; /* min free space since stream start */
270 __be32 blocks_written[2]; /* total blocks written (64 bit) */
271 __be32 words_written[2]; /* total words written (64 bit) */
272};
273
274struct wm_adsp_compr_buf {
275 struct wm_adsp *dsp;
276
277 struct wm_adsp_buffer_region *regions;
278 u32 host_buf_ptr;
279
280 u32 error;
281 u32 irq_count;
282 int read_index;
283 int avail;
284};
285
286struct wm_adsp_compr {
287 struct wm_adsp *dsp;
288 struct wm_adsp_compr_buf *buf;
289
290 struct snd_compr_stream *stream;
291 struct snd_compressed_buffer size;
292
293 u32 *raw_buf;
294 unsigned int copied_total;
295
296 unsigned int sample_rate;
297};
298
299#define WM_ADSP_DATA_WORD_SIZE 3
300
301#define WM_ADSP_MIN_FRAGMENTS 1
302#define WM_ADSP_MAX_FRAGMENTS 256
303#define WM_ADSP_MIN_FRAGMENT_SIZE (64 * WM_ADSP_DATA_WORD_SIZE)
304#define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * WM_ADSP_DATA_WORD_SIZE)
305
306#define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
307
308#define HOST_BUFFER_FIELD(field) \
309 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
310
311#define ALG_XM_FIELD(field) \
312 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
313
314static int wm_adsp_buffer_init(struct wm_adsp *dsp);
315static int wm_adsp_buffer_free(struct wm_adsp *dsp);
316
317struct wm_adsp_buffer_region {
318 unsigned int offset;
319 unsigned int cumulative_size;
320 unsigned int mem_type;
321 unsigned int base_addr;
322};
323
324struct wm_adsp_buffer_region_def {
325 unsigned int mem_type;
326 unsigned int base_offset;
327 unsigned int size_offset;
328};
329
330static const struct wm_adsp_buffer_region_def default_regions[] = {
331 {
332 .mem_type = WMFW_ADSP2_XM,
333 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
334 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
335 },
336 {
337 .mem_type = WMFW_ADSP2_XM,
338 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
339 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
340 },
341 {
342 .mem_type = WMFW_ADSP2_YM,
343 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
344 .size_offset = HOST_BUFFER_FIELD(wrap),
345 },
346};
347
348struct wm_adsp_fw_caps {
349 u32 id;
350 struct snd_codec_desc desc;
351 int num_regions;
352 const struct wm_adsp_buffer_region_def *region_defs;
353};
354
355static const struct wm_adsp_fw_caps ctrl_caps[] = {
356 {
357 .id = SND_AUDIOCODEC_BESPOKE,
358 .desc = {
359 .max_ch = 1,
360 .sample_rates = { 16000 },
361 .num_sample_rates = 1,
362 .formats = SNDRV_PCM_FMTBIT_S16_LE,
363 },
364 .num_regions = ARRAY_SIZE(default_regions),
365 .region_defs = default_regions,
366 },
367};
368
369static const struct wm_adsp_fw_caps trace_caps[] = {
370 {
371 .id = SND_AUDIOCODEC_BESPOKE,
372 .desc = {
373 .max_ch = 8,
374 .sample_rates = {
375 4000, 8000, 11025, 12000, 16000, 22050,
376 24000, 32000, 44100, 48000, 64000, 88200,
377 96000, 176400, 192000
378 },
379 .num_sample_rates = 15,
380 .formats = SNDRV_PCM_FMTBIT_S16_LE,
381 },
382 .num_regions = ARRAY_SIZE(default_regions),
383 .region_defs = default_regions,
384 },
385};
386
387static const struct {
388 const char *file;
389 int compr_direction;
390 int num_caps;
391 const struct wm_adsp_fw_caps *caps;
392} wm_adsp_fw[WM_ADSP_NUM_FW] = {
393 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
394 [WM_ADSP_FW_HIFI] = { .file = "hifi" },
395 [WM_ADSP_FW_TX] = { .file = "tx" },
396 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
397 [WM_ADSP_FW_RX] = { .file = "rx" },
398 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
399 [WM_ADSP_FW_CTRL] = {
400 .file = "ctrl",
401 .compr_direction = SND_COMPRESS_CAPTURE,
402 .num_caps = ARRAY_SIZE(ctrl_caps),
403 .caps = ctrl_caps,
404 },
405 [WM_ADSP_FW_ASR] = { .file = "asr" },
406 [WM_ADSP_FW_TRACE] = {
407 .file = "trace",
408 .compr_direction = SND_COMPRESS_CAPTURE,
409 .num_caps = ARRAY_SIZE(trace_caps),
410 .caps = trace_caps,
411 },
412 [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
413 [WM_ADSP_FW_MISC] = { .file = "misc" },
414};
415
416struct wm_coeff_ctl_ops {
417 int (*xget)(struct snd_kcontrol *kcontrol,
418 struct snd_ctl_elem_value *ucontrol);
419 int (*xput)(struct snd_kcontrol *kcontrol,
420 struct snd_ctl_elem_value *ucontrol);
421 int (*xinfo)(struct snd_kcontrol *kcontrol,
422 struct snd_ctl_elem_info *uinfo);
423};
424
425struct wm_coeff_ctl {
426 const char *name;
427 const char *fw_name;
428 struct wm_adsp_alg_region alg_region;
429 struct wm_coeff_ctl_ops ops;
430 struct wm_adsp *dsp;
431 unsigned int enabled:1;
432 struct list_head list;
433 void *cache;
434 unsigned int offset;
435 size_t len;
436 unsigned int set:1;
437 struct snd_kcontrol *kcontrol;
438 unsigned int flags;
439};
440
441#ifdef CONFIG_DEBUG_FS
442static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
443{
444 char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
445
446 kfree(dsp->wmfw_file_name);
447 dsp->wmfw_file_name = tmp;
448}
449
450static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
451{
452 char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
453
454 kfree(dsp->bin_file_name);
455 dsp->bin_file_name = tmp;
456}
457
458static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
459{
460 kfree(dsp->wmfw_file_name);
461 kfree(dsp->bin_file_name);
462 dsp->wmfw_file_name = NULL;
463 dsp->bin_file_name = NULL;
464}
465
466static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
467 char __user *user_buf,
468 size_t count, loff_t *ppos)
469{
470 struct wm_adsp *dsp = file->private_data;
471 ssize_t ret;
472
473 mutex_lock(&dsp->pwr_lock);
474
475 if (!dsp->wmfw_file_name || !dsp->running)
476 ret = 0;
477 else
478 ret = simple_read_from_buffer(user_buf, count, ppos,
479 dsp->wmfw_file_name,
480 strlen(dsp->wmfw_file_name));
481
482 mutex_unlock(&dsp->pwr_lock);
483 return ret;
484}
485
486static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
487 char __user *user_buf,
488 size_t count, loff_t *ppos)
489{
490 struct wm_adsp *dsp = file->private_data;
491 ssize_t ret;
492
493 mutex_lock(&dsp->pwr_lock);
494
495 if (!dsp->bin_file_name || !dsp->running)
496 ret = 0;
497 else
498 ret = simple_read_from_buffer(user_buf, count, ppos,
499 dsp->bin_file_name,
500 strlen(dsp->bin_file_name));
501
502 mutex_unlock(&dsp->pwr_lock);
503 return ret;
504}
505
506static const struct {
507 const char *name;
508 const struct file_operations fops;
509} wm_adsp_debugfs_fops[] = {
510 {
511 .name = "wmfw_file_name",
512 .fops = {
513 .open = simple_open,
514 .read = wm_adsp_debugfs_wmfw_read,
515 },
516 },
517 {
518 .name = "bin_file_name",
519 .fops = {
520 .open = simple_open,
521 .read = wm_adsp_debugfs_bin_read,
522 },
523 },
524};
525
526static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
527 struct snd_soc_codec *codec)
528{
529 struct dentry *root = NULL;
530 char *root_name;
531 int i;
532
533 if (!codec->component.debugfs_root) {
534 adsp_err(dsp, "No codec debugfs root\n");
535 goto err;
536 }
537
538 root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
539 if (!root_name)
540 goto err;
541
542 snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
543 root = debugfs_create_dir(root_name, codec->component.debugfs_root);
544 kfree(root_name);
545
546 if (!root)
547 goto err;
548
549 if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
550 goto err;
551
552 if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
553 goto err;
554
555 if (!debugfs_create_x32("fw_version", S_IRUGO, root,
556 &dsp->fw_id_version))
557 goto err;
558
559 for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
560 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
561 S_IRUGO, root, dsp,
562 &wm_adsp_debugfs_fops[i].fops))
563 goto err;
564 }
565
566 dsp->debugfs_root = root;
567 return;
568
569err:
570 debugfs_remove_recursive(root);
571 adsp_err(dsp, "Failed to create debugfs\n");
572}
573
574static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
575{
576 wm_adsp_debugfs_clear(dsp);
577 debugfs_remove_recursive(dsp->debugfs_root);
578}
579#else
580static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
581 struct snd_soc_codec *codec)
582{
583}
584
585static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
586{
587}
588
589static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
590 const char *s)
591{
592}
593
594static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
595 const char *s)
596{
597}
598
599static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
600{
601}
602#endif
603
604static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
605 struct snd_ctl_elem_value *ucontrol)
606{
607 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
608 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
609 struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
610
611 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
612
613 return 0;
614}
615
616static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
617 struct snd_ctl_elem_value *ucontrol)
618{
619 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
620 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
621 struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
622 int ret = 0;
623
624 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
625 return 0;
626
627 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
628 return -EINVAL;
629
630 mutex_lock(&dsp[e->shift_l].pwr_lock);
631
632 if (dsp[e->shift_l].running || dsp[e->shift_l].compr)
633 ret = -EBUSY;
634 else
635 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
636
637 mutex_unlock(&dsp[e->shift_l].pwr_lock);
638
639 return ret;
640}
641
642static const struct soc_enum wm_adsp_fw_enum[] = {
643 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
644 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
645 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
646 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
647};
648
649const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
650 SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
651 wm_adsp_fw_get, wm_adsp_fw_put),
652 SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
653 wm_adsp_fw_get, wm_adsp_fw_put),
654 SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
655 wm_adsp_fw_get, wm_adsp_fw_put),
656 SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
657 wm_adsp_fw_get, wm_adsp_fw_put),
658};
659EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
660
661static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
662 int type)
663{
664 int i;
665
666 for (i = 0; i < dsp->num_mems; i++)
667 if (dsp->mem[i].type == type)
668 return &dsp->mem[i];
669
670 return NULL;
671}
672
673static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
674 unsigned int offset)
675{
676 if (WARN_ON(!mem))
677 return offset;
678 switch (mem->type) {
679 case WMFW_ADSP1_PM:
680 return mem->base + (offset * 3);
681 case WMFW_ADSP1_DM:
682 return mem->base + (offset * 2);
683 case WMFW_ADSP2_XM:
684 return mem->base + (offset * 2);
685 case WMFW_ADSP2_YM:
686 return mem->base + (offset * 2);
687 case WMFW_ADSP1_ZM:
688 return mem->base + (offset * 2);
689 default:
690 WARN(1, "Unknown memory region type");
691 return offset;
692 }
693}
694
695static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
696{
697 u16 scratch[4];
698 int ret;
699
700 ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
701 scratch, sizeof(scratch));
702 if (ret) {
703 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
704 return;
705 }
706
707 adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
708 be16_to_cpu(scratch[0]),
709 be16_to_cpu(scratch[1]),
710 be16_to_cpu(scratch[2]),
711 be16_to_cpu(scratch[3]));
712}
713
714static int wm_coeff_info(struct snd_kcontrol *kctl,
715 struct snd_ctl_elem_info *uinfo)
716{
717 struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
718
719 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
720 uinfo->count = ctl->len;
721 return 0;
722}
723
724static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
725 const void *buf, size_t len)
726{
727 struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
728 const struct wm_adsp_region *mem;
729 struct wm_adsp *dsp = ctl->dsp;
730 void *scratch;
731 int ret;
732 unsigned int reg;
733
734 mem = wm_adsp_find_region(dsp, alg_region->type);
735 if (!mem) {
736 adsp_err(dsp, "No base for region %x\n",
737 alg_region->type);
738 return -EINVAL;
739 }
740
741 reg = ctl->alg_region.base + ctl->offset;
742 reg = wm_adsp_region_to_reg(mem, reg);
743
744 scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
745 if (!scratch)
746 return -ENOMEM;
747
748 ret = regmap_raw_write(dsp->regmap, reg, scratch,
749 len);
750 if (ret) {
751 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
752 len, reg, ret);
753 kfree(scratch);
754 return ret;
755 }
756 adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
757
758 kfree(scratch);
759
760 return 0;
761}
762
763static int wm_coeff_put(struct snd_kcontrol *kctl,
764 struct snd_ctl_elem_value *ucontrol)
765{
766 struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
767 char *p = ucontrol->value.bytes.data;
768 int ret = 0;
769
770 mutex_lock(&ctl->dsp->pwr_lock);
771
772 memcpy(ctl->cache, p, ctl->len);
773
774 ctl->set = 1;
775 if (ctl->enabled)
776 ret = wm_coeff_write_control(ctl, p, ctl->len);
777
778 mutex_unlock(&ctl->dsp->pwr_lock);
779
780 return ret;
781}
782
783static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
784 void *buf, size_t len)
785{
786 struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
787 const struct wm_adsp_region *mem;
788 struct wm_adsp *dsp = ctl->dsp;
789 void *scratch;
790 int ret;
791 unsigned int reg;
792
793 mem = wm_adsp_find_region(dsp, alg_region->type);
794 if (!mem) {
795 adsp_err(dsp, "No base for region %x\n",
796 alg_region->type);
797 return -EINVAL;
798 }
799
800 reg = ctl->alg_region.base + ctl->offset;
801 reg = wm_adsp_region_to_reg(mem, reg);
802
803 scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
804 if (!scratch)
805 return -ENOMEM;
806
807 ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
808 if (ret) {
809 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
810 len, reg, ret);
811 kfree(scratch);
812 return ret;
813 }
814 adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
815
816 memcpy(buf, scratch, len);
817 kfree(scratch);
818
819 return 0;
820}
821
822static int wm_coeff_get(struct snd_kcontrol *kctl,
823 struct snd_ctl_elem_value *ucontrol)
824{
825 struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
826 char *p = ucontrol->value.bytes.data;
827 int ret = 0;
828
829 mutex_lock(&ctl->dsp->pwr_lock);
830
831 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
832 if (ctl->enabled)
833 ret = wm_coeff_read_control(ctl, p, ctl->len);
834 else
835 ret = -EPERM;
836 } else {
837 if (!ctl->flags && ctl->enabled)
838 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
839
840 memcpy(p, ctl->cache, ctl->len);
841 }
842
843 mutex_unlock(&ctl->dsp->pwr_lock);
844
845 return ret;
846}
847
848struct wmfw_ctl_work {
849 struct wm_adsp *dsp;
850 struct wm_coeff_ctl *ctl;
851 struct work_struct work;
852};
853
854static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
855{
856 struct snd_kcontrol_new *kcontrol;
857 int ret;
858
859 if (!ctl || !ctl->name)
860 return -EINVAL;
861
862 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
863 if (!kcontrol)
864 return -ENOMEM;
865 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
866
867 kcontrol->name = ctl->name;
868 kcontrol->info = wm_coeff_info;
869 kcontrol->get = wm_coeff_get;
870 kcontrol->put = wm_coeff_put;
871 kcontrol->private_value = (unsigned long)ctl;
872
873 if (ctl->flags) {
874 if (ctl->flags & WMFW_CTL_FLAG_WRITEABLE)
875 kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
876 if (ctl->flags & WMFW_CTL_FLAG_READABLE)
877 kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_READ;
878 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
879 kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
880 } else {
881 kcontrol->access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
882 kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
883 }
884
885 ret = snd_soc_add_card_controls(dsp->card, kcontrol, 1);
886 if (ret < 0)
887 goto err_kcontrol;
888
889 kfree(kcontrol);
890
891 ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
892
893 return 0;
894
895err_kcontrol:
896 kfree(kcontrol);
897 return ret;
898}
899
900static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
901{
902 struct wm_coeff_ctl *ctl;
903 int ret;
904
905 list_for_each_entry(ctl, &dsp->ctl_list, list) {
906 if (!ctl->enabled || ctl->set)
907 continue;
908 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
909 continue;
910
911 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
912 if (ret < 0)
913 return ret;
914 }
915
916 return 0;
917}
918
919static int wm_coeff_sync_controls(struct wm_adsp *dsp)
920{
921 struct wm_coeff_ctl *ctl;
922 int ret;
923
924 list_for_each_entry(ctl, &dsp->ctl_list, list) {
925 if (!ctl->enabled)
926 continue;
927 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
928 ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
929 if (ret < 0)
930 return ret;
931 }
932 }
933
934 return 0;
935}
936
937static void wm_adsp_ctl_work(struct work_struct *work)
938{
939 struct wmfw_ctl_work *ctl_work = container_of(work,
940 struct wmfw_ctl_work,
941 work);
942
943 wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
944 kfree(ctl_work);
945}
946
947static int wm_adsp_create_control(struct wm_adsp *dsp,
948 const struct wm_adsp_alg_region *alg_region,
949 unsigned int offset, unsigned int len,
950 const char *subname, unsigned int subname_len,
951 unsigned int flags)
952{
953 struct wm_coeff_ctl *ctl;
954 struct wmfw_ctl_work *ctl_work;
955 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
956 char *region_name;
957 int ret;
958
959 if (flags & WMFW_CTL_FLAG_SYS)
960 return 0;
961
962 switch (alg_region->type) {
963 case WMFW_ADSP1_PM:
964 region_name = "PM";
965 break;
966 case WMFW_ADSP1_DM:
967 region_name = "DM";
968 break;
969 case WMFW_ADSP2_XM:
970 region_name = "XM";
971 break;
972 case WMFW_ADSP2_YM:
973 region_name = "YM";
974 break;
975 case WMFW_ADSP1_ZM:
976 region_name = "ZM";
977 break;
978 default:
979 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
980 return -EINVAL;
981 }
982
983 switch (dsp->fw_ver) {
984 case 0:
985 case 1:
986 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
987 dsp->num, region_name, alg_region->alg);
988 break;
989 default:
990 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
991 "DSP%d%c %.12s %x", dsp->num, *region_name,
992 wm_adsp_fw_text[dsp->fw], alg_region->alg);
993
994 /* Truncate the subname from the start if it is too long */
995 if (subname) {
996 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
997 int skip = 0;
998
999 if (subname_len > avail)
1000 skip = subname_len - avail;
1001
1002 snprintf(name + ret,
1003 SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1004 subname_len - skip, subname + skip);
1005 }
1006 break;
1007 }
1008
1009 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1010 if (!strcmp(ctl->name, name)) {
1011 if (!ctl->enabled)
1012 ctl->enabled = 1;
1013 return 0;
1014 }
1015 }
1016
1017 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1018 if (!ctl)
1019 return -ENOMEM;
1020 ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1021 ctl->alg_region = *alg_region;
1022 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1023 if (!ctl->name) {
1024 ret = -ENOMEM;
1025 goto err_ctl;
1026 }
1027 ctl->enabled = 1;
1028 ctl->set = 0;
1029 ctl->ops.xget = wm_coeff_get;
1030 ctl->ops.xput = wm_coeff_put;
1031 ctl->dsp = dsp;
1032
1033 ctl->flags = flags;
1034 ctl->offset = offset;
1035 if (len > 512) {
1036 adsp_warn(dsp, "Truncating control %s from %d\n",
1037 ctl->name, len);
1038 len = 512;
1039 }
1040 ctl->len = len;
1041 ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1042 if (!ctl->cache) {
1043 ret = -ENOMEM;
1044 goto err_ctl_name;
1045 }
1046
1047 list_add(&ctl->list, &dsp->ctl_list);
1048
1049 ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1050 if (!ctl_work) {
1051 ret = -ENOMEM;
1052 goto err_ctl_cache;
1053 }
1054
1055 ctl_work->dsp = dsp;
1056 ctl_work->ctl = ctl;
1057 INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1058 schedule_work(&ctl_work->work);
1059
1060 return 0;
1061
1062err_ctl_cache:
1063 kfree(ctl->cache);
1064err_ctl_name:
1065 kfree(ctl->name);
1066err_ctl:
1067 kfree(ctl);
1068
1069 return ret;
1070}
1071
1072struct wm_coeff_parsed_alg {
1073 int id;
1074 const u8 *name;
1075 int name_len;
1076 int ncoeff;
1077};
1078
1079struct wm_coeff_parsed_coeff {
1080 int offset;
1081 int mem_type;
1082 const u8 *name;
1083 int name_len;
1084 int ctl_type;
1085 int flags;
1086 int len;
1087};
1088
1089static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1090{
1091 int length;
1092
1093 switch (bytes) {
1094 case 1:
1095 length = **pos;
1096 break;
1097 case 2:
1098 length = le16_to_cpu(*((__le16 *)*pos));
1099 break;
1100 default:
1101 return 0;
1102 }
1103
1104 if (str)
1105 *str = *pos + bytes;
1106
1107 *pos += ((length + bytes) + 3) & ~0x03;
1108
1109 return length;
1110}
1111
1112static int wm_coeff_parse_int(int bytes, const u8 **pos)
1113{
1114 int val = 0;
1115
1116 switch (bytes) {
1117 case 2:
1118 val = le16_to_cpu(*((__le16 *)*pos));
1119 break;
1120 case 4:
1121 val = le32_to_cpu(*((__le32 *)*pos));
1122 break;
1123 default:
1124 break;
1125 }
1126
1127 *pos += bytes;
1128
1129 return val;
1130}
1131
1132static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1133 struct wm_coeff_parsed_alg *blk)
1134{
1135 const struct wmfw_adsp_alg_data *raw;
1136
1137 switch (dsp->fw_ver) {
1138 case 0:
1139 case 1:
1140 raw = (const struct wmfw_adsp_alg_data *)*data;
1141 *data = raw->data;
1142
1143 blk->id = le32_to_cpu(raw->id);
1144 blk->name = raw->name;
1145 blk->name_len = strlen(raw->name);
1146 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1147 break;
1148 default:
1149 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1150 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1151 &blk->name);
1152 wm_coeff_parse_string(sizeof(u16), data, NULL);
1153 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1154 break;
1155 }
1156
1157 adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1158 adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1159 adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1160}
1161
1162static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1163 struct wm_coeff_parsed_coeff *blk)
1164{
1165 const struct wmfw_adsp_coeff_data *raw;
1166 const u8 *tmp;
1167 int length;
1168
1169 switch (dsp->fw_ver) {
1170 case 0:
1171 case 1:
1172 raw = (const struct wmfw_adsp_coeff_data *)*data;
1173 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1174
1175 blk->offset = le16_to_cpu(raw->hdr.offset);
1176 blk->mem_type = le16_to_cpu(raw->hdr.type);
1177 blk->name = raw->name;
1178 blk->name_len = strlen(raw->name);
1179 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1180 blk->flags = le16_to_cpu(raw->flags);
1181 blk->len = le32_to_cpu(raw->len);
1182 break;
1183 default:
1184 tmp = *data;
1185 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1186 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1187 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1188 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1189 &blk->name);
1190 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1191 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1192 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1193 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1194 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1195
1196 *data = *data + sizeof(raw->hdr) + length;
1197 break;
1198 }
1199
1200 adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1201 adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1202 adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1203 adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1204 adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1205 adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1206}
1207
1208static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1209 const struct wmfw_region *region)
1210{
1211 struct wm_adsp_alg_region alg_region = {};
1212 struct wm_coeff_parsed_alg alg_blk;
1213 struct wm_coeff_parsed_coeff coeff_blk;
1214 const u8 *data = region->data;
1215 int i, ret;
1216
1217 wm_coeff_parse_alg(dsp, &data, &alg_blk);
1218 for (i = 0; i < alg_blk.ncoeff; i++) {
1219 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1220
1221 switch (coeff_blk.ctl_type) {
1222 case SNDRV_CTL_ELEM_TYPE_BYTES:
1223 break;
1224 default:
1225 adsp_err(dsp, "Unknown control type: %d\n",
1226 coeff_blk.ctl_type);
1227 return -EINVAL;
1228 }
1229
1230 alg_region.type = coeff_blk.mem_type;
1231 alg_region.alg = alg_blk.id;
1232
1233 ret = wm_adsp_create_control(dsp, &alg_region,
1234 coeff_blk.offset,
1235 coeff_blk.len,
1236 coeff_blk.name,
1237 coeff_blk.name_len,
1238 coeff_blk.flags);
1239 if (ret < 0)
1240 adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1241 coeff_blk.name_len, coeff_blk.name, ret);
1242 }
1243
1244 return 0;
1245}
1246
1247static int wm_adsp_load(struct wm_adsp *dsp)
1248{
1249 LIST_HEAD(buf_list);
1250 const struct firmware *firmware;
1251 struct regmap *regmap = dsp->regmap;
1252 unsigned int pos = 0;
1253 const struct wmfw_header *header;
1254 const struct wmfw_adsp1_sizes *adsp1_sizes;
1255 const struct wmfw_adsp2_sizes *adsp2_sizes;
1256 const struct wmfw_footer *footer;
1257 const struct wmfw_region *region;
1258 const struct wm_adsp_region *mem;
1259 const char *region_name;
1260 char *file, *text;
1261 struct wm_adsp_buf *buf;
1262 unsigned int reg;
1263 int regions = 0;
1264 int ret, offset, type, sizes;
1265
1266 file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1267 if (file == NULL)
1268 return -ENOMEM;
1269
1270 snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
1271 wm_adsp_fw[dsp->fw].file);
1272 file[PAGE_SIZE - 1] = '\0';
1273
1274 ret = request_firmware(&firmware, file, dsp->dev);
1275 if (ret != 0) {
1276 adsp_err(dsp, "Failed to request '%s'\n", file);
1277 goto out;
1278 }
1279 ret = -EINVAL;
1280
1281 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1282 if (pos >= firmware->size) {
1283 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1284 file, firmware->size);
1285 goto out_fw;
1286 }
1287
1288 header = (void *)&firmware->data[0];
1289
1290 if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1291 adsp_err(dsp, "%s: invalid magic\n", file);
1292 goto out_fw;
1293 }
1294
1295 switch (header->ver) {
1296 case 0:
1297 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1298 file, header->ver);
1299 break;
1300 case 1:
1301 case 2:
1302 break;
1303 default:
1304 adsp_err(dsp, "%s: unknown file format %d\n",
1305 file, header->ver);
1306 goto out_fw;
1307 }
1308
1309 adsp_info(dsp, "Firmware version: %d\n", header->ver);
1310 dsp->fw_ver = header->ver;
1311
1312 if (header->core != dsp->type) {
1313 adsp_err(dsp, "%s: invalid core %d != %d\n",
1314 file, header->core, dsp->type);
1315 goto out_fw;
1316 }
1317
1318 switch (dsp->type) {
1319 case WMFW_ADSP1:
1320 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1321 adsp1_sizes = (void *)&(header[1]);
1322 footer = (void *)&(adsp1_sizes[1]);
1323 sizes = sizeof(*adsp1_sizes);
1324
1325 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1326 file, le32_to_cpu(adsp1_sizes->dm),
1327 le32_to_cpu(adsp1_sizes->pm),
1328 le32_to_cpu(adsp1_sizes->zm));
1329 break;
1330
1331 case WMFW_ADSP2:
1332 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1333 adsp2_sizes = (void *)&(header[1]);
1334 footer = (void *)&(adsp2_sizes[1]);
1335 sizes = sizeof(*adsp2_sizes);
1336
1337 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1338 file, le32_to_cpu(adsp2_sizes->xm),
1339 le32_to_cpu(adsp2_sizes->ym),
1340 le32_to_cpu(adsp2_sizes->pm),
1341 le32_to_cpu(adsp2_sizes->zm));
1342 break;
1343
1344 default:
1345 WARN(1, "Unknown DSP type");
1346 goto out_fw;
1347 }
1348
1349 if (le32_to_cpu(header->len) != sizeof(*header) +
1350 sizes + sizeof(*footer)) {
1351 adsp_err(dsp, "%s: unexpected header length %d\n",
1352 file, le32_to_cpu(header->len));
1353 goto out_fw;
1354 }
1355
1356 adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1357 le64_to_cpu(footer->timestamp));
1358
1359 while (pos < firmware->size &&
1360 pos - firmware->size > sizeof(*region)) {
1361 region = (void *)&(firmware->data[pos]);
1362 region_name = "Unknown";
1363 reg = 0;
1364 text = NULL;
1365 offset = le32_to_cpu(region->offset) & 0xffffff;
1366 type = be32_to_cpu(region->type) & 0xff;
1367 mem = wm_adsp_find_region(dsp, type);
1368
1369 switch (type) {
1370 case WMFW_NAME_TEXT:
1371 region_name = "Firmware name";
1372 text = kzalloc(le32_to_cpu(region->len) + 1,
1373 GFP_KERNEL);
1374 break;
1375 case WMFW_ALGORITHM_DATA:
1376 region_name = "Algorithm";
1377 ret = wm_adsp_parse_coeff(dsp, region);
1378 if (ret != 0)
1379 goto out_fw;
1380 break;
1381 case WMFW_INFO_TEXT:
1382 region_name = "Information";
1383 text = kzalloc(le32_to_cpu(region->len) + 1,
1384 GFP_KERNEL);
1385 break;
1386 case WMFW_ABSOLUTE:
1387 region_name = "Absolute";
1388 reg = offset;
1389 break;
1390 case WMFW_ADSP1_PM:
1391 region_name = "PM";
1392 reg = wm_adsp_region_to_reg(mem, offset);
1393 break;
1394 case WMFW_ADSP1_DM:
1395 region_name = "DM";
1396 reg = wm_adsp_region_to_reg(mem, offset);
1397 break;
1398 case WMFW_ADSP2_XM:
1399 region_name = "XM";
1400 reg = wm_adsp_region_to_reg(mem, offset);
1401 break;
1402 case WMFW_ADSP2_YM:
1403 region_name = "YM";
1404 reg = wm_adsp_region_to_reg(mem, offset);
1405 break;
1406 case WMFW_ADSP1_ZM:
1407 region_name = "ZM";
1408 reg = wm_adsp_region_to_reg(mem, offset);
1409 break;
1410 default:
1411 adsp_warn(dsp,
1412 "%s.%d: Unknown region type %x at %d(%x)\n",
1413 file, regions, type, pos, pos);
1414 break;
1415 }
1416
1417 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1418 regions, le32_to_cpu(region->len), offset,
1419 region_name);
1420
1421 if (text) {
1422 memcpy(text, region->data, le32_to_cpu(region->len));
1423 adsp_info(dsp, "%s: %s\n", file, text);
1424 kfree(text);
1425 }
1426
1427 if (reg) {
1428 buf = wm_adsp_buf_alloc(region->data,
1429 le32_to_cpu(region->len),
1430 &buf_list);
1431 if (!buf) {
1432 adsp_err(dsp, "Out of memory\n");
1433 ret = -ENOMEM;
1434 goto out_fw;
1435 }
1436
1437 ret = regmap_raw_write_async(regmap, reg, buf->buf,
1438 le32_to_cpu(region->len));
1439 if (ret != 0) {
1440 adsp_err(dsp,
1441 "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1442 file, regions,
1443 le32_to_cpu(region->len), offset,
1444 region_name, ret);
1445 goto out_fw;
1446 }
1447 }
1448
1449 pos += le32_to_cpu(region->len) + sizeof(*region);
1450 regions++;
1451 }
1452
1453 ret = regmap_async_complete(regmap);
1454 if (ret != 0) {
1455 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1456 goto out_fw;
1457 }
1458
1459 if (pos > firmware->size)
1460 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1461 file, regions, pos - firmware->size);
1462
1463 wm_adsp_debugfs_save_wmfwname(dsp, file);
1464
1465out_fw:
1466 regmap_async_complete(regmap);
1467 wm_adsp_buf_free(&buf_list);
1468 release_firmware(firmware);
1469out:
1470 kfree(file);
1471
1472 return ret;
1473}
1474
1475static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1476 const struct wm_adsp_alg_region *alg_region)
1477{
1478 struct wm_coeff_ctl *ctl;
1479
1480 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1481 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1482 alg_region->alg == ctl->alg_region.alg &&
1483 alg_region->type == ctl->alg_region.type) {
1484 ctl->alg_region.base = alg_region->base;
1485 }
1486 }
1487}
1488
1489static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1490 unsigned int pos, unsigned int len)
1491{
1492 void *alg;
1493 int ret;
1494 __be32 val;
1495
1496 if (n_algs == 0) {
1497 adsp_err(dsp, "No algorithms\n");
1498 return ERR_PTR(-EINVAL);
1499 }
1500
1501 if (n_algs > 1024) {
1502 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1503 return ERR_PTR(-EINVAL);
1504 }
1505
1506 /* Read the terminator first to validate the length */
1507 ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1508 if (ret != 0) {
1509 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1510 ret);
1511 return ERR_PTR(ret);
1512 }
1513
1514 if (be32_to_cpu(val) != 0xbedead)
1515 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1516 pos + len, be32_to_cpu(val));
1517
1518 alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1519 if (!alg)
1520 return ERR_PTR(-ENOMEM);
1521
1522 ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1523 if (ret != 0) {
1524 adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
1525 kfree(alg);
1526 return ERR_PTR(ret);
1527 }
1528
1529 return alg;
1530}
1531
1532static struct wm_adsp_alg_region *
1533 wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1534{
1535 struct wm_adsp_alg_region *alg_region;
1536
1537 list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1538 if (id == alg_region->alg && type == alg_region->type)
1539 return alg_region;
1540 }
1541
1542 return NULL;
1543}
1544
1545static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1546 int type, __be32 id,
1547 __be32 base)
1548{
1549 struct wm_adsp_alg_region *alg_region;
1550
1551 alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1552 if (!alg_region)
1553 return ERR_PTR(-ENOMEM);
1554
1555 alg_region->type = type;
1556 alg_region->alg = be32_to_cpu(id);
1557 alg_region->base = be32_to_cpu(base);
1558
1559 list_add_tail(&alg_region->list, &dsp->alg_regions);
1560
1561 if (dsp->fw_ver > 0)
1562 wm_adsp_ctl_fixup_base(dsp, alg_region);
1563
1564 return alg_region;
1565}
1566
1567static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1568{
1569 struct wmfw_adsp1_id_hdr adsp1_id;
1570 struct wmfw_adsp1_alg_hdr *adsp1_alg;
1571 struct wm_adsp_alg_region *alg_region;
1572 const struct wm_adsp_region *mem;
1573 unsigned int pos, len;
1574 size_t n_algs;
1575 int i, ret;
1576
1577 mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1578 if (WARN_ON(!mem))
1579 return -EINVAL;
1580
1581 ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1582 sizeof(adsp1_id));
1583 if (ret != 0) {
1584 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1585 ret);
1586 return ret;
1587 }
1588
1589 n_algs = be32_to_cpu(adsp1_id.n_algs);
1590 dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1591 adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1592 dsp->fw_id,
1593 (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1594 (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1595 be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1596 n_algs);
1597
1598 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1599 adsp1_id.fw.id, adsp1_id.zm);
1600 if (IS_ERR(alg_region))
1601 return PTR_ERR(alg_region);
1602
1603 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1604 adsp1_id.fw.id, adsp1_id.dm);
1605 if (IS_ERR(alg_region))
1606 return PTR_ERR(alg_region);
1607
1608 pos = sizeof(adsp1_id) / 2;
1609 len = (sizeof(*adsp1_alg) * n_algs) / 2;
1610
1611 adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1612 if (IS_ERR(adsp1_alg))
1613 return PTR_ERR(adsp1_alg);
1614
1615 for (i = 0; i < n_algs; i++) {
1616 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1617 i, be32_to_cpu(adsp1_alg[i].alg.id),
1618 (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1619 (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1620 be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1621 be32_to_cpu(adsp1_alg[i].dm),
1622 be32_to_cpu(adsp1_alg[i].zm));
1623
1624 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1625 adsp1_alg[i].alg.id,
1626 adsp1_alg[i].dm);
1627 if (IS_ERR(alg_region)) {
1628 ret = PTR_ERR(alg_region);
1629 goto out;
1630 }
1631 if (dsp->fw_ver == 0) {
1632 if (i + 1 < n_algs) {
1633 len = be32_to_cpu(adsp1_alg[i + 1].dm);
1634 len -= be32_to_cpu(adsp1_alg[i].dm);
1635 len *= 4;
1636 wm_adsp_create_control(dsp, alg_region, 0,
1637 len, NULL, 0, 0);
1638 } else {
1639 adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1640 be32_to_cpu(adsp1_alg[i].alg.id));
1641 }
1642 }
1643
1644 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1645 adsp1_alg[i].alg.id,
1646 adsp1_alg[i].zm);
1647 if (IS_ERR(alg_region)) {
1648 ret = PTR_ERR(alg_region);
1649 goto out;
1650 }
1651 if (dsp->fw_ver == 0) {
1652 if (i + 1 < n_algs) {
1653 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1654 len -= be32_to_cpu(adsp1_alg[i].zm);
1655 len *= 4;
1656 wm_adsp_create_control(dsp, alg_region, 0,
1657 len, NULL, 0, 0);
1658 } else {
1659 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1660 be32_to_cpu(adsp1_alg[i].alg.id));
1661 }
1662 }
1663 }
1664
1665out:
1666 kfree(adsp1_alg);
1667 return ret;
1668}
1669
1670static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1671{
1672 struct wmfw_adsp2_id_hdr adsp2_id;
1673 struct wmfw_adsp2_alg_hdr *adsp2_alg;
1674 struct wm_adsp_alg_region *alg_region;
1675 const struct wm_adsp_region *mem;
1676 unsigned int pos, len;
1677 size_t n_algs;
1678 int i, ret;
1679
1680 mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1681 if (WARN_ON(!mem))
1682 return -EINVAL;
1683
1684 ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1685 sizeof(adsp2_id));
1686 if (ret != 0) {
1687 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1688 ret);
1689 return ret;
1690 }
1691
1692 n_algs = be32_to_cpu(adsp2_id.n_algs);
1693 dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
1694 dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
1695 adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1696 dsp->fw_id,
1697 (dsp->fw_id_version & 0xff0000) >> 16,
1698 (dsp->fw_id_version & 0xff00) >> 8,
1699 dsp->fw_id_version & 0xff,
1700 n_algs);
1701
1702 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1703 adsp2_id.fw.id, adsp2_id.xm);
1704 if (IS_ERR(alg_region))
1705 return PTR_ERR(alg_region);
1706
1707 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1708 adsp2_id.fw.id, adsp2_id.ym);
1709 if (IS_ERR(alg_region))
1710 return PTR_ERR(alg_region);
1711
1712 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1713 adsp2_id.fw.id, adsp2_id.zm);
1714 if (IS_ERR(alg_region))
1715 return PTR_ERR(alg_region);
1716
1717 pos = sizeof(adsp2_id) / 2;
1718 len = (sizeof(*adsp2_alg) * n_algs) / 2;
1719
1720 adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1721 if (IS_ERR(adsp2_alg))
1722 return PTR_ERR(adsp2_alg);
1723
1724 for (i = 0; i < n_algs; i++) {
1725 adsp_info(dsp,
1726 "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1727 i, be32_to_cpu(adsp2_alg[i].alg.id),
1728 (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1729 (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1730 be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1731 be32_to_cpu(adsp2_alg[i].xm),
1732 be32_to_cpu(adsp2_alg[i].ym),
1733 be32_to_cpu(adsp2_alg[i].zm));
1734
1735 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1736 adsp2_alg[i].alg.id,
1737 adsp2_alg[i].xm);
1738 if (IS_ERR(alg_region)) {
1739 ret = PTR_ERR(alg_region);
1740 goto out;
1741 }
1742 if (dsp->fw_ver == 0) {
1743 if (i + 1 < n_algs) {
1744 len = be32_to_cpu(adsp2_alg[i + 1].xm);
1745 len -= be32_to_cpu(adsp2_alg[i].xm);
1746 len *= 4;
1747 wm_adsp_create_control(dsp, alg_region, 0,
1748 len, NULL, 0, 0);
1749 } else {
1750 adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1751 be32_to_cpu(adsp2_alg[i].alg.id));
1752 }
1753 }
1754
1755 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1756 adsp2_alg[i].alg.id,
1757 adsp2_alg[i].ym);
1758 if (IS_ERR(alg_region)) {
1759 ret = PTR_ERR(alg_region);
1760 goto out;
1761 }
1762 if (dsp->fw_ver == 0) {
1763 if (i + 1 < n_algs) {
1764 len = be32_to_cpu(adsp2_alg[i + 1].ym);
1765 len -= be32_to_cpu(adsp2_alg[i].ym);
1766 len *= 4;
1767 wm_adsp_create_control(dsp, alg_region, 0,
1768 len, NULL, 0, 0);
1769 } else {
1770 adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1771 be32_to_cpu(adsp2_alg[i].alg.id));
1772 }
1773 }
1774
1775 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1776 adsp2_alg[i].alg.id,
1777 adsp2_alg[i].zm);
1778 if (IS_ERR(alg_region)) {
1779 ret = PTR_ERR(alg_region);
1780 goto out;
1781 }
1782 if (dsp->fw_ver == 0) {
1783 if (i + 1 < n_algs) {
1784 len = be32_to_cpu(adsp2_alg[i + 1].zm);
1785 len -= be32_to_cpu(adsp2_alg[i].zm);
1786 len *= 4;
1787 wm_adsp_create_control(dsp, alg_region, 0,
1788 len, NULL, 0, 0);
1789 } else {
1790 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1791 be32_to_cpu(adsp2_alg[i].alg.id));
1792 }
1793 }
1794 }
1795
1796out:
1797 kfree(adsp2_alg);
1798 return ret;
1799}
1800
1801static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1802{
1803 LIST_HEAD(buf_list);
1804 struct regmap *regmap = dsp->regmap;
1805 struct wmfw_coeff_hdr *hdr;
1806 struct wmfw_coeff_item *blk;
1807 const struct firmware *firmware;
1808 const struct wm_adsp_region *mem;
1809 struct wm_adsp_alg_region *alg_region;
1810 const char *region_name;
1811 int ret, pos, blocks, type, offset, reg;
1812 char *file;
1813 struct wm_adsp_buf *buf;
1814
1815 file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1816 if (file == NULL)
1817 return -ENOMEM;
1818
1819 snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1820 wm_adsp_fw[dsp->fw].file);
1821 file[PAGE_SIZE - 1] = '\0';
1822
1823 ret = request_firmware(&firmware, file, dsp->dev);
1824 if (ret != 0) {
1825 adsp_warn(dsp, "Failed to request '%s'\n", file);
1826 ret = 0;
1827 goto out;
1828 }
1829 ret = -EINVAL;
1830
1831 if (sizeof(*hdr) >= firmware->size) {
1832 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1833 file, firmware->size);
1834 goto out_fw;
1835 }
1836
1837 hdr = (void *)&firmware->data[0];
1838 if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1839 adsp_err(dsp, "%s: invalid magic\n", file);
1840 goto out_fw;
1841 }
1842
1843 switch (be32_to_cpu(hdr->rev) & 0xff) {
1844 case 1:
1845 break;
1846 default:
1847 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1848 file, be32_to_cpu(hdr->rev) & 0xff);
1849 ret = -EINVAL;
1850 goto out_fw;
1851 }
1852
1853 adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1854 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
1855 (le32_to_cpu(hdr->ver) >> 8) & 0xff,
1856 le32_to_cpu(hdr->ver) & 0xff);
1857
1858 pos = le32_to_cpu(hdr->len);
1859
1860 blocks = 0;
1861 while (pos < firmware->size &&
1862 pos - firmware->size > sizeof(*blk)) {
1863 blk = (void *)(&firmware->data[pos]);
1864
1865 type = le16_to_cpu(blk->type);
1866 offset = le16_to_cpu(blk->offset);
1867
1868 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1869 file, blocks, le32_to_cpu(blk->id),
1870 (le32_to_cpu(blk->ver) >> 16) & 0xff,
1871 (le32_to_cpu(blk->ver) >> 8) & 0xff,
1872 le32_to_cpu(blk->ver) & 0xff);
1873 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1874 file, blocks, le32_to_cpu(blk->len), offset, type);
1875
1876 reg = 0;
1877 region_name = "Unknown";
1878 switch (type) {
1879 case (WMFW_NAME_TEXT << 8):
1880 case (WMFW_INFO_TEXT << 8):
1881 break;
1882 case (WMFW_ABSOLUTE << 8):
1883 /*
1884 * Old files may use this for global
1885 * coefficients.
1886 */
1887 if (le32_to_cpu(blk->id) == dsp->fw_id &&
1888 offset == 0) {
1889 region_name = "global coefficients";
1890 mem = wm_adsp_find_region(dsp, type);
1891 if (!mem) {
1892 adsp_err(dsp, "No ZM\n");
1893 break;
1894 }
1895 reg = wm_adsp_region_to_reg(mem, 0);
1896
1897 } else {
1898 region_name = "register";
1899 reg = offset;
1900 }
1901 break;
1902
1903 case WMFW_ADSP1_DM:
1904 case WMFW_ADSP1_ZM:
1905 case WMFW_ADSP2_XM:
1906 case WMFW_ADSP2_YM:
1907 adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
1908 file, blocks, le32_to_cpu(blk->len),
1909 type, le32_to_cpu(blk->id));
1910
1911 mem = wm_adsp_find_region(dsp, type);
1912 if (!mem) {
1913 adsp_err(dsp, "No base for region %x\n", type);
1914 break;
1915 }
1916
1917 alg_region = wm_adsp_find_alg_region(dsp, type,
1918 le32_to_cpu(blk->id));
1919 if (alg_region) {
1920 reg = alg_region->base;
1921 reg = wm_adsp_region_to_reg(mem, reg);
1922 reg += offset;
1923 } else {
1924 adsp_err(dsp, "No %x for algorithm %x\n",
1925 type, le32_to_cpu(blk->id));
1926 }
1927 break;
1928
1929 default:
1930 adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
1931 file, blocks, type, pos);
1932 break;
1933 }
1934
1935 if (reg) {
1936 buf = wm_adsp_buf_alloc(blk->data,
1937 le32_to_cpu(blk->len),
1938 &buf_list);
1939 if (!buf) {
1940 adsp_err(dsp, "Out of memory\n");
1941 ret = -ENOMEM;
1942 goto out_fw;
1943 }
1944
1945 adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
1946 file, blocks, le32_to_cpu(blk->len),
1947 reg);
1948 ret = regmap_raw_write_async(regmap, reg, buf->buf,
1949 le32_to_cpu(blk->len));
1950 if (ret != 0) {
1951 adsp_err(dsp,
1952 "%s.%d: Failed to write to %x in %s: %d\n",
1953 file, blocks, reg, region_name, ret);
1954 }
1955 }
1956
1957 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
1958 blocks++;
1959 }
1960
1961 ret = regmap_async_complete(regmap);
1962 if (ret != 0)
1963 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1964
1965 if (pos > firmware->size)
1966 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1967 file, blocks, pos - firmware->size);
1968
1969 wm_adsp_debugfs_save_binname(dsp, file);
1970
1971out_fw:
1972 regmap_async_complete(regmap);
1973 release_firmware(firmware);
1974 wm_adsp_buf_free(&buf_list);
1975out:
1976 kfree(file);
1977 return ret;
1978}
1979
1980int wm_adsp1_init(struct wm_adsp *dsp)
1981{
1982 INIT_LIST_HEAD(&dsp->alg_regions);
1983
1984 mutex_init(&dsp->pwr_lock);
1985
1986 return 0;
1987}
1988EXPORT_SYMBOL_GPL(wm_adsp1_init);
1989
1990int wm_adsp1_event(struct snd_soc_dapm_widget *w,
1991 struct snd_kcontrol *kcontrol,
1992 int event)
1993{
1994 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
1995 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1996 struct wm_adsp *dsp = &dsps[w->shift];
1997 struct wm_adsp_alg_region *alg_region;
1998 struct wm_coeff_ctl *ctl;
1999 int ret;
2000 unsigned int val;
2001
2002 dsp->card = codec->component.card;
2003
2004 mutex_lock(&dsp->pwr_lock);
2005
2006 switch (event) {
2007 case SND_SOC_DAPM_POST_PMU:
2008 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2009 ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2010
2011 /*
2012 * For simplicity set the DSP clock rate to be the
2013 * SYSCLK rate rather than making it configurable.
2014 */
2015 if (dsp->sysclk_reg) {
2016 ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2017 if (ret != 0) {
2018 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2019 ret);
2020 goto err_mutex;
2021 }
2022
2023 val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2024
2025 ret = regmap_update_bits(dsp->regmap,
2026 dsp->base + ADSP1_CONTROL_31,
2027 ADSP1_CLK_SEL_MASK, val);
2028 if (ret != 0) {
2029 adsp_err(dsp, "Failed to set clock rate: %d\n",
2030 ret);
2031 goto err_mutex;
2032 }
2033 }
2034
2035 ret = wm_adsp_load(dsp);
2036 if (ret != 0)
2037 goto err_ena;
2038
2039 ret = wm_adsp1_setup_algs(dsp);
2040 if (ret != 0)
2041 goto err_ena;
2042
2043 ret = wm_adsp_load_coeff(dsp);
2044 if (ret != 0)
2045 goto err_ena;
2046
2047 /* Initialize caches for enabled and unset controls */
2048 ret = wm_coeff_init_control_caches(dsp);
2049 if (ret != 0)
2050 goto err_ena;
2051
2052 /* Sync set controls */
2053 ret = wm_coeff_sync_controls(dsp);
2054 if (ret != 0)
2055 goto err_ena;
2056
2057 /* Start the core running */
2058 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2059 ADSP1_CORE_ENA | ADSP1_START,
2060 ADSP1_CORE_ENA | ADSP1_START);
2061 break;
2062
2063 case SND_SOC_DAPM_PRE_PMD:
2064 /* Halt the core */
2065 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2066 ADSP1_CORE_ENA | ADSP1_START, 0);
2067
2068 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2069 ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2070
2071 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2072 ADSP1_SYS_ENA, 0);
2073
2074 list_for_each_entry(ctl, &dsp->ctl_list, list)
2075 ctl->enabled = 0;
2076
2077 while (!list_empty(&dsp->alg_regions)) {
2078 alg_region = list_first_entry(&dsp->alg_regions,
2079 struct wm_adsp_alg_region,
2080 list);
2081 list_del(&alg_region->list);
2082 kfree(alg_region);
2083 }
2084 break;
2085
2086 default:
2087 break;
2088 }
2089
2090 mutex_unlock(&dsp->pwr_lock);
2091
2092 return 0;
2093
2094err_ena:
2095 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2096 ADSP1_SYS_ENA, 0);
2097err_mutex:
2098 mutex_unlock(&dsp->pwr_lock);
2099
2100 return ret;
2101}
2102EXPORT_SYMBOL_GPL(wm_adsp1_event);
2103
2104static int wm_adsp2_ena(struct wm_adsp *dsp)
2105{
2106 unsigned int val;
2107 int ret, count;
2108
2109 ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2110 ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2111 if (ret != 0)
2112 return ret;
2113
2114 /* Wait for the RAM to start, should be near instantaneous */
2115 for (count = 0; count < 10; ++count) {
2116 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2117 if (ret != 0)
2118 return ret;
2119
2120 if (val & ADSP2_RAM_RDY)
2121 break;
2122
2123 msleep(1);
2124 }
2125
2126 if (!(val & ADSP2_RAM_RDY)) {
2127 adsp_err(dsp, "Failed to start DSP RAM\n");
2128 return -EBUSY;
2129 }
2130
2131 adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2132
2133 return 0;
2134}
2135
2136static void wm_adsp2_boot_work(struct work_struct *work)
2137{
2138 struct wm_adsp *dsp = container_of(work,
2139 struct wm_adsp,
2140 boot_work);
2141 int ret;
2142
2143 mutex_lock(&dsp->pwr_lock);
2144
2145 ret = wm_adsp2_ena(dsp);
2146 if (ret != 0)
2147 goto err_mutex;
2148
2149 ret = wm_adsp_load(dsp);
2150 if (ret != 0)
2151 goto err_ena;
2152
2153 ret = wm_adsp2_setup_algs(dsp);
2154 if (ret != 0)
2155 goto err_ena;
2156
2157 ret = wm_adsp_load_coeff(dsp);
2158 if (ret != 0)
2159 goto err_ena;
2160
2161 /* Initialize caches for enabled and unset controls */
2162 ret = wm_coeff_init_control_caches(dsp);
2163 if (ret != 0)
2164 goto err_ena;
2165
2166 /* Sync set controls */
2167 ret = wm_coeff_sync_controls(dsp);
2168 if (ret != 0)
2169 goto err_ena;
2170
2171 dsp->running = true;
2172
2173 mutex_unlock(&dsp->pwr_lock);
2174
2175 return;
2176
2177err_ena:
2178 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2179 ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2180err_mutex:
2181 mutex_unlock(&dsp->pwr_lock);
2182}
2183
2184static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2185{
2186 int ret;
2187
2188 ret = regmap_update_bits_async(dsp->regmap,
2189 dsp->base + ADSP2_CLOCKING,
2190 ADSP2_CLK_SEL_MASK,
2191 freq << ADSP2_CLK_SEL_SHIFT);
2192 if (ret != 0)
2193 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2194}
2195
2196int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2197 struct snd_kcontrol *kcontrol, int event,
2198 unsigned int freq)
2199{
2200 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2201 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2202 struct wm_adsp *dsp = &dsps[w->shift];
2203
2204 dsp->card = codec->component.card;
2205
2206 switch (event) {
2207 case SND_SOC_DAPM_PRE_PMU:
2208 wm_adsp2_set_dspclk(dsp, freq);
2209 queue_work(system_unbound_wq, &dsp->boot_work);
2210 break;
2211 default:
2212 break;
2213 }
2214
2215 return 0;
2216}
2217EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2218
2219int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2220 struct snd_kcontrol *kcontrol, int event)
2221{
2222 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2223 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2224 struct wm_adsp *dsp = &dsps[w->shift];
2225 struct wm_adsp_alg_region *alg_region;
2226 struct wm_coeff_ctl *ctl;
2227 int ret;
2228
2229 switch (event) {
2230 case SND_SOC_DAPM_POST_PMU:
2231 flush_work(&dsp->boot_work);
2232
2233 if (!dsp->running)
2234 return -EIO;
2235
2236 ret = regmap_update_bits(dsp->regmap,
2237 dsp->base + ADSP2_CONTROL,
2238 ADSP2_CORE_ENA | ADSP2_START,
2239 ADSP2_CORE_ENA | ADSP2_START);
2240 if (ret != 0)
2241 goto err;
2242
2243 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2244 ret = wm_adsp_buffer_init(dsp);
2245
2246 break;
2247
2248 case SND_SOC_DAPM_PRE_PMD:
2249 /* Log firmware state, it can be useful for analysis */
2250 wm_adsp2_show_fw_status(dsp);
2251
2252 mutex_lock(&dsp->pwr_lock);
2253
2254 wm_adsp_debugfs_clear(dsp);
2255
2256 dsp->fw_id = 0;
2257 dsp->fw_id_version = 0;
2258 dsp->running = false;
2259
2260 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2261 ADSP2_SYS_ENA | ADSP2_CORE_ENA |
2262 ADSP2_START, 0);
2263
2264 /* Make sure DMAs are quiesced */
2265 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2266 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2267 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2268
2269 list_for_each_entry(ctl, &dsp->ctl_list, list)
2270 ctl->enabled = 0;
2271
2272 while (!list_empty(&dsp->alg_regions)) {
2273 alg_region = list_first_entry(&dsp->alg_regions,
2274 struct wm_adsp_alg_region,
2275 list);
2276 list_del(&alg_region->list);
2277 kfree(alg_region);
2278 }
2279
2280 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2281 wm_adsp_buffer_free(dsp);
2282
2283 mutex_unlock(&dsp->pwr_lock);
2284
2285 adsp_dbg(dsp, "Shutdown complete\n");
2286 break;
2287
2288 default:
2289 break;
2290 }
2291
2292 return 0;
2293err:
2294 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2295 ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2296 return ret;
2297}
2298EXPORT_SYMBOL_GPL(wm_adsp2_event);
2299
2300int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2301{
2302 wm_adsp2_init_debugfs(dsp, codec);
2303
2304 return snd_soc_add_codec_controls(codec,
2305 &wm_adsp_fw_controls[dsp->num - 1],
2306 1);
2307}
2308EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2309
2310int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2311{
2312 wm_adsp2_cleanup_debugfs(dsp);
2313
2314 return 0;
2315}
2316EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2317
2318int wm_adsp2_init(struct wm_adsp *dsp)
2319{
2320 int ret;
2321
2322 /*
2323 * Disable the DSP memory by default when in reset for a small
2324 * power saving.
2325 */
2326 ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2327 ADSP2_MEM_ENA, 0);
2328 if (ret != 0) {
2329 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2330 return ret;
2331 }
2332
2333 INIT_LIST_HEAD(&dsp->alg_regions);
2334 INIT_LIST_HEAD(&dsp->ctl_list);
2335 INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2336
2337 mutex_init(&dsp->pwr_lock);
2338
2339 return 0;
2340}
2341EXPORT_SYMBOL_GPL(wm_adsp2_init);
2342
2343int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2344{
2345 struct wm_adsp_compr *compr;
2346 int ret = 0;
2347
2348 mutex_lock(&dsp->pwr_lock);
2349
2350 if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2351 adsp_err(dsp, "Firmware does not support compressed API\n");
2352 ret = -ENXIO;
2353 goto out;
2354 }
2355
2356 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2357 adsp_err(dsp, "Firmware does not support stream direction\n");
2358 ret = -EINVAL;
2359 goto out;
2360 }
2361
2362 if (dsp->compr) {
2363 /* It is expect this limitation will be removed in future */
2364 adsp_err(dsp, "Only a single stream supported per DSP\n");
2365 ret = -EBUSY;
2366 goto out;
2367 }
2368
2369 compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2370 if (!compr) {
2371 ret = -ENOMEM;
2372 goto out;
2373 }
2374
2375 compr->dsp = dsp;
2376 compr->stream = stream;
2377
2378 dsp->compr = compr;
2379
2380 stream->runtime->private_data = compr;
2381
2382out:
2383 mutex_unlock(&dsp->pwr_lock);
2384
2385 return ret;
2386}
2387EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2388
2389int wm_adsp_compr_free(struct snd_compr_stream *stream)
2390{
2391 struct wm_adsp_compr *compr = stream->runtime->private_data;
2392 struct wm_adsp *dsp = compr->dsp;
2393
2394 mutex_lock(&dsp->pwr_lock);
2395
2396 dsp->compr = NULL;
2397
2398 kfree(compr->raw_buf);
2399 kfree(compr);
2400
2401 mutex_unlock(&dsp->pwr_lock);
2402
2403 return 0;
2404}
2405EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2406
2407static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2408 struct snd_compr_params *params)
2409{
2410 struct wm_adsp_compr *compr = stream->runtime->private_data;
2411 struct wm_adsp *dsp = compr->dsp;
2412 const struct wm_adsp_fw_caps *caps;
2413 const struct snd_codec_desc *desc;
2414 int i, j;
2415
2416 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2417 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2418 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2419 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2420 params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2421 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2422 params->buffer.fragment_size,
2423 params->buffer.fragments);
2424
2425 return -EINVAL;
2426 }
2427
2428 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2429 caps = &wm_adsp_fw[dsp->fw].caps[i];
2430 desc = &caps->desc;
2431
2432 if (caps->id != params->codec.id)
2433 continue;
2434
2435 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2436 if (desc->max_ch < params->codec.ch_out)
2437 continue;
2438 } else {
2439 if (desc->max_ch < params->codec.ch_in)
2440 continue;
2441 }
2442
2443 if (!(desc->formats & (1 << params->codec.format)))
2444 continue;
2445
2446 for (j = 0; j < desc->num_sample_rates; ++j)
2447 if (desc->sample_rates[j] == params->codec.sample_rate)
2448 return 0;
2449 }
2450
2451 adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2452 params->codec.id, params->codec.ch_in, params->codec.ch_out,
2453 params->codec.sample_rate, params->codec.format);
2454 return -EINVAL;
2455}
2456
2457static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2458{
2459 return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2460}
2461
2462int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2463 struct snd_compr_params *params)
2464{
2465 struct wm_adsp_compr *compr = stream->runtime->private_data;
2466 unsigned int size;
2467 int ret;
2468
2469 ret = wm_adsp_compr_check_params(stream, params);
2470 if (ret)
2471 return ret;
2472
2473 compr->size = params->buffer;
2474
2475 adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2476 compr->size.fragment_size, compr->size.fragments);
2477
2478 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2479 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2480 if (!compr->raw_buf)
2481 return -ENOMEM;
2482
2483 compr->sample_rate = params->codec.sample_rate;
2484
2485 return 0;
2486}
2487EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2488
2489int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2490 struct snd_compr_caps *caps)
2491{
2492 struct wm_adsp_compr *compr = stream->runtime->private_data;
2493 int fw = compr->dsp->fw;
2494 int i;
2495
2496 if (wm_adsp_fw[fw].caps) {
2497 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2498 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2499
2500 caps->num_codecs = i;
2501 caps->direction = wm_adsp_fw[fw].compr_direction;
2502
2503 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2504 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2505 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2506 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2507 }
2508
2509 return 0;
2510}
2511EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2512
2513static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2514 unsigned int mem_addr,
2515 unsigned int num_words, u32 *data)
2516{
2517 struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2518 unsigned int i, reg;
2519 int ret;
2520
2521 if (!mem)
2522 return -EINVAL;
2523
2524 reg = wm_adsp_region_to_reg(mem, mem_addr);
2525
2526 ret = regmap_raw_read(dsp->regmap, reg, data,
2527 sizeof(*data) * num_words);
2528 if (ret < 0)
2529 return ret;
2530
2531 for (i = 0; i < num_words; ++i)
2532 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2533
2534 return 0;
2535}
2536
2537static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
2538 unsigned int mem_addr, u32 *data)
2539{
2540 return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
2541}
2542
2543static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
2544 unsigned int mem_addr, u32 data)
2545{
2546 struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2547 unsigned int reg;
2548
2549 if (!mem)
2550 return -EINVAL;
2551
2552 reg = wm_adsp_region_to_reg(mem, mem_addr);
2553
2554 data = cpu_to_be32(data & 0x00ffffffu);
2555
2556 return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
2557}
2558
2559static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
2560 unsigned int field_offset, u32 *data)
2561{
2562 return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
2563 buf->host_buf_ptr + field_offset, data);
2564}
2565
2566static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
2567 unsigned int field_offset, u32 data)
2568{
2569 return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
2570 buf->host_buf_ptr + field_offset, data);
2571}
2572
2573static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
2574{
2575 struct wm_adsp_alg_region *alg_region;
2576 struct wm_adsp *dsp = buf->dsp;
2577 u32 xmalg, addr, magic;
2578 int i, ret;
2579
2580 alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
2581 xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
2582
2583 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
2584 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
2585 if (ret < 0)
2586 return ret;
2587
2588 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
2589 return -EINVAL;
2590
2591 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
2592 for (i = 0; i < 5; ++i) {
2593 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
2594 &buf->host_buf_ptr);
2595 if (ret < 0)
2596 return ret;
2597
2598 if (buf->host_buf_ptr)
2599 break;
2600
2601 usleep_range(1000, 2000);
2602 }
2603
2604 if (!buf->host_buf_ptr)
2605 return -EIO;
2606
2607 adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
2608
2609 return 0;
2610}
2611
2612static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
2613{
2614 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
2615 struct wm_adsp_buffer_region *region;
2616 u32 offset = 0;
2617 int i, ret;
2618
2619 for (i = 0; i < caps->num_regions; ++i) {
2620 region = &buf->regions[i];
2621
2622 region->offset = offset;
2623 region->mem_type = caps->region_defs[i].mem_type;
2624
2625 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
2626 ®ion->base_addr);
2627 if (ret < 0)
2628 return ret;
2629
2630 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
2631 &offset);
2632 if (ret < 0)
2633 return ret;
2634
2635 region->cumulative_size = offset;
2636
2637 adsp_dbg(buf->dsp,
2638 "region=%d type=%d base=%04x off=%04x size=%04x\n",
2639 i, region->mem_type, region->base_addr,
2640 region->offset, region->cumulative_size);
2641 }
2642
2643 return 0;
2644}
2645
2646static int wm_adsp_buffer_init(struct wm_adsp *dsp)
2647{
2648 struct wm_adsp_compr_buf *buf;
2649 int ret;
2650
2651 buf = kzalloc(sizeof(*buf), GFP_KERNEL);
2652 if (!buf)
2653 return -ENOMEM;
2654
2655 buf->dsp = dsp;
2656 buf->read_index = -1;
2657 buf->irq_count = 0xFFFFFFFF;
2658
2659 ret = wm_adsp_buffer_locate(buf);
2660 if (ret < 0) {
2661 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
2662 goto err_buffer;
2663 }
2664
2665 buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
2666 sizeof(*buf->regions), GFP_KERNEL);
2667 if (!buf->regions) {
2668 ret = -ENOMEM;
2669 goto err_buffer;
2670 }
2671
2672 ret = wm_adsp_buffer_populate(buf);
2673 if (ret < 0) {
2674 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
2675 goto err_regions;
2676 }
2677
2678 dsp->buffer = buf;
2679
2680 return 0;
2681
2682err_regions:
2683 kfree(buf->regions);
2684err_buffer:
2685 kfree(buf);
2686 return ret;
2687}
2688
2689static int wm_adsp_buffer_free(struct wm_adsp *dsp)
2690{
2691 if (dsp->buffer) {
2692 kfree(dsp->buffer->regions);
2693 kfree(dsp->buffer);
2694
2695 dsp->buffer = NULL;
2696 }
2697
2698 return 0;
2699}
2700
2701static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2702{
2703 return compr->buf != NULL;
2704}
2705
2706static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2707{
2708 /*
2709 * Note this will be more complex once each DSP can support multiple
2710 * streams
2711 */
2712 if (!compr->dsp->buffer)
2713 return -EINVAL;
2714
2715 compr->buf = compr->dsp->buffer;
2716
2717 return 0;
2718}
2719
2720int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
2721{
2722 struct wm_adsp_compr *compr = stream->runtime->private_data;
2723 struct wm_adsp *dsp = compr->dsp;
2724 int ret = 0;
2725
2726 adsp_dbg(dsp, "Trigger: %d\n", cmd);
2727
2728 mutex_lock(&dsp->pwr_lock);
2729
2730 switch (cmd) {
2731 case SNDRV_PCM_TRIGGER_START:
2732 if (wm_adsp_compr_attached(compr))
2733 break;
2734
2735 ret = wm_adsp_compr_attach(compr);
2736 if (ret < 0) {
2737 adsp_err(dsp, "Failed to link buffer and stream: %d\n",
2738 ret);
2739 break;
2740 }
2741
2742 /* Trigger the IRQ at one fragment of data */
2743 ret = wm_adsp_buffer_write(compr->buf,
2744 HOST_BUFFER_FIELD(high_water_mark),
2745 wm_adsp_compr_frag_words(compr));
2746 if (ret < 0) {
2747 adsp_err(dsp, "Failed to set high water mark: %d\n",
2748 ret);
2749 break;
2750 }
2751 break;
2752 case SNDRV_PCM_TRIGGER_STOP:
2753 break;
2754 default:
2755 ret = -EINVAL;
2756 break;
2757 }
2758
2759 mutex_unlock(&dsp->pwr_lock);
2760
2761 return ret;
2762}
2763EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
2764
2765static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
2766{
2767 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
2768
2769 return buf->regions[last_region].cumulative_size;
2770}
2771
2772static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
2773{
2774 u32 next_read_index, next_write_index;
2775 int write_index, read_index, avail;
2776 int ret;
2777
2778 /* Only sync read index if we haven't already read a valid index */
2779 if (buf->read_index < 0) {
2780 ret = wm_adsp_buffer_read(buf,
2781 HOST_BUFFER_FIELD(next_read_index),
2782 &next_read_index);
2783 if (ret < 0)
2784 return ret;
2785
2786 read_index = sign_extend32(next_read_index, 23);
2787
2788 if (read_index < 0) {
2789 adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
2790 return 0;
2791 }
2792
2793 buf->read_index = read_index;
2794 }
2795
2796 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
2797 &next_write_index);
2798 if (ret < 0)
2799 return ret;
2800
2801 write_index = sign_extend32(next_write_index, 23);
2802
2803 avail = write_index - buf->read_index;
2804 if (avail < 0)
2805 avail += wm_adsp_buffer_size(buf);
2806
2807 adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
2808 buf->read_index, write_index, avail);
2809
2810 buf->avail = avail;
2811
2812 return 0;
2813}
2814
2815int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
2816{
2817 struct wm_adsp_compr_buf *buf = dsp->buffer;
2818 struct wm_adsp_compr *compr = dsp->compr;
2819 int ret = 0;
2820
2821 mutex_lock(&dsp->pwr_lock);
2822
2823 if (!buf) {
2824 ret = -ENODEV;
2825 goto out;
2826 }
2827
2828 adsp_dbg(dsp, "Handling buffer IRQ\n");
2829
2830 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
2831 if (ret < 0) {
2832 adsp_err(dsp, "Failed to check buffer error: %d\n", ret);
2833 goto out;
2834 }
2835 if (buf->error != 0) {
2836 adsp_err(dsp, "Buffer error occurred: %d\n", buf->error);
2837 ret = -EIO;
2838 goto out;
2839 }
2840
2841 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
2842 &buf->irq_count);
2843 if (ret < 0) {
2844 adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
2845 goto out;
2846 }
2847
2848 ret = wm_adsp_buffer_update_avail(buf);
2849 if (ret < 0) {
2850 adsp_err(dsp, "Error reading avail: %d\n", ret);
2851 goto out;
2852 }
2853
2854 if (compr && compr->stream)
2855 snd_compr_fragment_elapsed(compr->stream);
2856
2857out:
2858 mutex_unlock(&dsp->pwr_lock);
2859
2860 return ret;
2861}
2862EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
2863
2864static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
2865{
2866 if (buf->irq_count & 0x01)
2867 return 0;
2868
2869 adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
2870 buf->irq_count);
2871
2872 buf->irq_count |= 0x01;
2873
2874 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
2875 buf->irq_count);
2876}
2877
2878int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
2879 struct snd_compr_tstamp *tstamp)
2880{
2881 struct wm_adsp_compr *compr = stream->runtime->private_data;
2882 struct wm_adsp_compr_buf *buf = compr->buf;
2883 struct wm_adsp *dsp = compr->dsp;
2884 int ret = 0;
2885
2886 adsp_dbg(dsp, "Pointer request\n");
2887
2888 mutex_lock(&dsp->pwr_lock);
2889
2890 if (!compr->buf) {
2891 ret = -ENXIO;
2892 goto out;
2893 }
2894
2895 if (compr->buf->error) {
2896 ret = -EIO;
2897 goto out;
2898 }
2899
2900 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
2901 ret = wm_adsp_buffer_update_avail(buf);
2902 if (ret < 0) {
2903 adsp_err(dsp, "Error reading avail: %d\n", ret);
2904 goto out;
2905 }
2906
2907 /*
2908 * If we really have less than 1 fragment available tell the
2909 * DSP to inform us once a whole fragment is available.
2910 */
2911 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
2912 ret = wm_adsp_buffer_reenable_irq(buf);
2913 if (ret < 0) {
2914 adsp_err(dsp,
2915 "Failed to re-enable buffer IRQ: %d\n",
2916 ret);
2917 goto out;
2918 }
2919 }
2920 }
2921
2922 tstamp->copied_total = compr->copied_total;
2923 tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
2924 tstamp->sampling_rate = compr->sample_rate;
2925
2926out:
2927 mutex_unlock(&dsp->pwr_lock);
2928
2929 return ret;
2930}
2931EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
2932
2933static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
2934{
2935 struct wm_adsp_compr_buf *buf = compr->buf;
2936 u8 *pack_in = (u8 *)compr->raw_buf;
2937 u8 *pack_out = (u8 *)compr->raw_buf;
2938 unsigned int adsp_addr;
2939 int mem_type, nwords, max_read;
2940 int i, j, ret;
2941
2942 /* Calculate read parameters */
2943 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
2944 if (buf->read_index < buf->regions[i].cumulative_size)
2945 break;
2946
2947 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
2948 return -EINVAL;
2949
2950 mem_type = buf->regions[i].mem_type;
2951 adsp_addr = buf->regions[i].base_addr +
2952 (buf->read_index - buf->regions[i].offset);
2953
2954 max_read = wm_adsp_compr_frag_words(compr);
2955 nwords = buf->regions[i].cumulative_size - buf->read_index;
2956
2957 if (nwords > target)
2958 nwords = target;
2959 if (nwords > buf->avail)
2960 nwords = buf->avail;
2961 if (nwords > max_read)
2962 nwords = max_read;
2963 if (!nwords)
2964 return 0;
2965
2966 /* Read data from DSP */
2967 ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
2968 nwords, compr->raw_buf);
2969 if (ret < 0)
2970 return ret;
2971
2972 /* Remove the padding bytes from the data read from the DSP */
2973 for (i = 0; i < nwords; i++) {
2974 for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
2975 *pack_out++ = *pack_in++;
2976
2977 pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
2978 }
2979
2980 /* update read index to account for words read */
2981 buf->read_index += nwords;
2982 if (buf->read_index == wm_adsp_buffer_size(buf))
2983 buf->read_index = 0;
2984
2985 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
2986 buf->read_index);
2987 if (ret < 0)
2988 return ret;
2989
2990 /* update avail to account for words read */
2991 buf->avail -= nwords;
2992
2993 return nwords;
2994}
2995
2996static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
2997 char __user *buf, size_t count)
2998{
2999 struct wm_adsp *dsp = compr->dsp;
3000 int ntotal = 0;
3001 int nwords, nbytes;
3002
3003 adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
3004
3005 if (!compr->buf)
3006 return -ENXIO;
3007
3008 if (compr->buf->error)
3009 return -EIO;
3010
3011 count /= WM_ADSP_DATA_WORD_SIZE;
3012
3013 do {
3014 nwords = wm_adsp_buffer_capture_block(compr, count);
3015 if (nwords < 0) {
3016 adsp_err(dsp, "Failed to capture block: %d\n", nwords);
3017 return nwords;
3018 }
3019
3020 nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
3021
3022 adsp_dbg(dsp, "Read %d bytes\n", nbytes);
3023
3024 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
3025 adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
3026 ntotal, nbytes);
3027 return -EFAULT;
3028 }
3029
3030 count -= nwords;
3031 ntotal += nbytes;
3032 } while (nwords > 0 && count > 0);
3033
3034 compr->copied_total += ntotal;
3035
3036 return ntotal;
3037}
3038
3039int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
3040 size_t count)
3041{
3042 struct wm_adsp_compr *compr = stream->runtime->private_data;
3043 struct wm_adsp *dsp = compr->dsp;
3044 int ret;
3045
3046 mutex_lock(&dsp->pwr_lock);
3047
3048 if (stream->direction == SND_COMPRESS_CAPTURE)
3049 ret = wm_adsp_compr_read(compr, buf, count);
3050 else
3051 ret = -ENOTSUPP;
3052
3053 mutex_unlock(&dsp->pwr_lock);
3054
3055 return ret;
3056}
3057EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
3058
3059MODULE_LICENSE("GPL v2");