1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * wm_adsp.c -- Wolfson ADSP support
4 *
5 * Copyright 2012 Wolfson Microelectronics plc
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10 #include <linux/ctype.h>
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/firmware.h>
16 #include <linux/list.h>
17 #include <linux/pm.h>
18 #include <linux/pm_runtime.h>
19 #include <linux/regmap.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/slab.h>
22 #include <linux/vmalloc.h>
23 #include <linux/workqueue.h>
24 #include <linux/debugfs.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/jack.h>
30 #include <sound/initval.h>
31 #include <sound/tlv.h>
32
33 #include "wm_adsp.h"
34
35 #define adsp_crit(_dsp, fmt, ...) \
36 dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
37 #define adsp_err(_dsp, fmt, ...) \
38 dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
39 #define adsp_warn(_dsp, fmt, ...) \
40 dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
41 #define adsp_info(_dsp, fmt, ...) \
42 dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
43 #define adsp_dbg(_dsp, fmt, ...) \
44 dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
45
46 #define compr_err(_obj, fmt, ...) \
47 adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
48 ##__VA_ARGS__)
49 #define compr_dbg(_obj, fmt, ...) \
50 adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
51 ##__VA_ARGS__)
52
53 #define ADSP_MAX_STD_CTRL_SIZE 512
54
55 static const struct cs_dsp_client_ops wm_adsp1_client_ops;
56 static const struct cs_dsp_client_ops wm_adsp2_client_ops;
57
58 #define WM_ADSP_FW_MBC_VSS 0
59 #define WM_ADSP_FW_HIFI 1
60 #define WM_ADSP_FW_TX 2
61 #define WM_ADSP_FW_TX_SPK 3
62 #define WM_ADSP_FW_RX 4
63 #define WM_ADSP_FW_RX_ANC 5
64 #define WM_ADSP_FW_CTRL 6
65 #define WM_ADSP_FW_ASR 7
66 #define WM_ADSP_FW_TRACE 8
67 #define WM_ADSP_FW_SPK_PROT 9
68 #define WM_ADSP_FW_SPK_CALI 10
69 #define WM_ADSP_FW_SPK_DIAG 11
70 #define WM_ADSP_FW_MISC 12
71
72 #define WM_ADSP_NUM_FW 13
73
74 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
75 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
76 [WM_ADSP_FW_HIFI] = "MasterHiFi",
77 [WM_ADSP_FW_TX] = "Tx",
78 [WM_ADSP_FW_TX_SPK] = "Tx Speaker",
79 [WM_ADSP_FW_RX] = "Rx",
80 [WM_ADSP_FW_RX_ANC] = "Rx ANC",
81 [WM_ADSP_FW_CTRL] = "Voice Ctrl",
82 [WM_ADSP_FW_ASR] = "ASR Assist",
83 [WM_ADSP_FW_TRACE] = "Dbg Trace",
84 [WM_ADSP_FW_SPK_PROT] = "Protection",
85 [WM_ADSP_FW_SPK_CALI] = "Calibration",
86 [WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
87 [WM_ADSP_FW_MISC] = "Misc",
88 };
89
90 struct wm_adsp_system_config_xm_hdr {
91 __be32 sys_enable;
92 __be32 fw_id;
93 __be32 fw_rev;
94 __be32 boot_status;
95 __be32 watchdog;
96 __be32 dma_buffer_size;
97 __be32 rdma[6];
98 __be32 wdma[8];
99 __be32 build_job_name[3];
100 __be32 build_job_number;
101 } __packed;
102
103 struct wm_halo_system_config_xm_hdr {
104 __be32 halo_heartbeat;
105 __be32 build_job_name[3];
106 __be32 build_job_number;
107 } __packed;
108
109 struct wm_adsp_alg_xm_struct {
110 __be32 magic;
111 __be32 smoothing;
112 __be32 threshold;
113 __be32 host_buf_ptr;
114 __be32 start_seq;
115 __be32 high_water_mark;
116 __be32 low_water_mark;
117 __be64 smoothed_power;
118 } __packed;
119
120 struct wm_adsp_host_buf_coeff_v1 {
121 __be32 host_buf_ptr; /* Host buffer pointer */
122 __be32 versions; /* Version numbers */
123 __be32 name[4]; /* The buffer name */
124 } __packed;
125
126 struct wm_adsp_buffer {
127 __be32 buf1_base; /* Base addr of first buffer area */
128 __be32 buf1_size; /* Size of buf1 area in DSP words */
129 __be32 buf2_base; /* Base addr of 2nd buffer area */
130 __be32 buf1_buf2_size; /* Size of buf1+buf2 in DSP words */
131 __be32 buf3_base; /* Base addr of buf3 area */
132 __be32 buf_total_size; /* Size of buf1+buf2+buf3 in DSP words */
133 __be32 high_water_mark; /* Point at which IRQ is asserted */
134 __be32 irq_count; /* bits 1-31 count IRQ assertions */
135 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
136 __be32 next_write_index; /* word index of next write */
137 __be32 next_read_index; /* word index of next read */
138 __be32 error; /* error if any */
139 __be32 oldest_block_index; /* word index of oldest surviving */
140 __be32 requested_rewind; /* how many blocks rewind was done */
141 __be32 reserved_space; /* internal */
142 __be32 min_free; /* min free space since stream start */
143 __be32 blocks_written[2]; /* total blocks written (64 bit) */
144 __be32 words_written[2]; /* total words written (64 bit) */
145 } __packed;
146
147 struct wm_adsp_compr;
148
149 struct wm_adsp_compr_buf {
150 struct list_head list;
151 struct wm_adsp *dsp;
152 struct wm_adsp_compr *compr;
153
154 struct wm_adsp_buffer_region *regions;
155 u32 host_buf_ptr;
156
157 u32 error;
158 u32 irq_count;
159 int read_index;
160 int avail;
161 int host_buf_mem_type;
162
163 char *name;
164 };
165
166 struct wm_adsp_compr {
167 struct list_head list;
168 struct wm_adsp *dsp;
169 struct wm_adsp_compr_buf *buf;
170
171 struct snd_compr_stream *stream;
172 struct snd_compressed_buffer size;
173
174 u32 *raw_buf;
175 unsigned int copied_total;
176
177 unsigned int sample_rate;
178
179 const char *name;
180 };
181
182 #define WM_ADSP_MIN_FRAGMENTS 1
183 #define WM_ADSP_MAX_FRAGMENTS 256
184 #define WM_ADSP_MIN_FRAGMENT_SIZE (16 * CS_DSP_DATA_WORD_SIZE)
185 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * CS_DSP_DATA_WORD_SIZE)
186
187 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
188
189 #define HOST_BUFFER_FIELD(field) \
190 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
191
192 #define ALG_XM_FIELD(field) \
193 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
194
195 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER 1
196
197 #define HOST_BUF_COEFF_COMPAT_VER_MASK 0xFF00
198 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT 8
199
200 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
201 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
202
203 struct wm_adsp_buffer_region {
204 unsigned int offset;
205 unsigned int cumulative_size;
206 unsigned int mem_type;
207 unsigned int base_addr;
208 };
209
210 struct wm_adsp_buffer_region_def {
211 unsigned int mem_type;
212 unsigned int base_offset;
213 unsigned int size_offset;
214 };
215
216 static const struct wm_adsp_buffer_region_def default_regions[] = {
217 {
218 .mem_type = WMFW_ADSP2_XM,
219 .base_offset = HOST_BUFFER_FIELD(buf1_base),
220 .size_offset = HOST_BUFFER_FIELD(buf1_size),
221 },
222 {
223 .mem_type = WMFW_ADSP2_XM,
224 .base_offset = HOST_BUFFER_FIELD(buf2_base),
225 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
226 },
227 {
228 .mem_type = WMFW_ADSP2_YM,
229 .base_offset = HOST_BUFFER_FIELD(buf3_base),
230 .size_offset = HOST_BUFFER_FIELD(buf_total_size),
231 },
232 };
233
234 struct wm_adsp_fw_caps {
235 u32 id;
236 struct snd_codec_desc desc;
237 int num_regions;
238 const struct wm_adsp_buffer_region_def *region_defs;
239 };
240
241 static const struct wm_adsp_fw_caps ctrl_caps[] = {
242 {
243 .id = SND_AUDIOCODEC_BESPOKE,
244 .desc = {
245 .max_ch = 8,
246 .sample_rates = { 16000 },
247 .num_sample_rates = 1,
248 .formats = SNDRV_PCM_FMTBIT_S16_LE,
249 },
250 .num_regions = ARRAY_SIZE(default_regions),
251 .region_defs = default_regions,
252 },
253 };
254
255 static const struct wm_adsp_fw_caps trace_caps[] = {
256 {
257 .id = SND_AUDIOCODEC_BESPOKE,
258 .desc = {
259 .max_ch = 8,
260 .sample_rates = {
261 4000, 8000, 11025, 12000, 16000, 22050,
262 24000, 32000, 44100, 48000, 64000, 88200,
263 96000, 176400, 192000
264 },
265 .num_sample_rates = 15,
266 .formats = SNDRV_PCM_FMTBIT_S16_LE,
267 },
268 .num_regions = ARRAY_SIZE(default_regions),
269 .region_defs = default_regions,
270 },
271 };
272
273 static const struct {
274 const char *file;
275 int compr_direction;
276 int num_caps;
277 const struct wm_adsp_fw_caps *caps;
278 bool voice_trigger;
279 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
280 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
281 [WM_ADSP_FW_HIFI] = { .file = "hifi" },
282 [WM_ADSP_FW_TX] = { .file = "tx" },
283 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
284 [WM_ADSP_FW_RX] = { .file = "rx" },
285 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
286 [WM_ADSP_FW_CTRL] = {
287 .file = "ctrl",
288 .compr_direction = SND_COMPRESS_CAPTURE,
289 .num_caps = ARRAY_SIZE(ctrl_caps),
290 .caps = ctrl_caps,
291 .voice_trigger = true,
292 },
293 [WM_ADSP_FW_ASR] = { .file = "asr" },
294 [WM_ADSP_FW_TRACE] = {
295 .file = "trace",
296 .compr_direction = SND_COMPRESS_CAPTURE,
297 .num_caps = ARRAY_SIZE(trace_caps),
298 .caps = trace_caps,
299 },
300 [WM_ADSP_FW_SPK_PROT] = {
301 .file = "spk-prot",
302 .compr_direction = SND_COMPRESS_CAPTURE,
303 .num_caps = ARRAY_SIZE(trace_caps),
304 .caps = trace_caps,
305 },
306 [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
307 [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
308 [WM_ADSP_FW_MISC] = { .file = "misc" },
309 };
310
311 struct wm_coeff_ctl {
312 const char *name;
313 struct cs_dsp_coeff_ctl *cs_ctl;
314 struct soc_bytes_ext bytes_ext;
315 struct work_struct work;
316 };
317
wm_adsp_fw_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)318 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_value *ucontrol)
320 {
321 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
322 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
323 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
324
325 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
326
327 return 0;
328 }
329 EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
330
wm_adsp_fw_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)331 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
332 struct snd_ctl_elem_value *ucontrol)
333 {
334 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
335 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
336 struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
337 int ret = 1;
338
339 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
340 return 0;
341
342 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
343 return -EINVAL;
344
345 mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock);
346
347 if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list))
348 ret = -EBUSY;
349 else
350 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
351
352 mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock);
353
354 return ret;
355 }
356 EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
357
358 const struct soc_enum wm_adsp_fw_enum[] = {
359 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
360 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
361 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
362 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
363 SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
364 SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
365 SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
366 };
367 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
368
bytes_ext_to_ctl(struct soc_bytes_ext * ext)369 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
370 {
371 return container_of(ext, struct wm_coeff_ctl, bytes_ext);
372 }
373
wm_coeff_info(struct snd_kcontrol * kctl,struct snd_ctl_elem_info * uinfo)374 static int wm_coeff_info(struct snd_kcontrol *kctl,
375 struct snd_ctl_elem_info *uinfo)
376 {
377 struct soc_bytes_ext *bytes_ext =
378 (struct soc_bytes_ext *)kctl->private_value;
379 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
380 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
381
382 switch (cs_ctl->type) {
383 case WMFW_CTL_TYPE_ACKED:
384 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
385 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE;
386 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE;
387 uinfo->value.integer.step = 1;
388 uinfo->count = 1;
389 break;
390 default:
391 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
392 uinfo->count = cs_ctl->len;
393 break;
394 }
395
396 return 0;
397 }
398
wm_coeff_put(struct snd_kcontrol * kctl,struct snd_ctl_elem_value * ucontrol)399 static int wm_coeff_put(struct snd_kcontrol *kctl,
400 struct snd_ctl_elem_value *ucontrol)
401 {
402 struct soc_bytes_ext *bytes_ext =
403 (struct soc_bytes_ext *)kctl->private_value;
404 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
405 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
406 char *p = ucontrol->value.bytes.data;
407 int ret = 0;
408
409 mutex_lock(&cs_ctl->dsp->pwr_lock);
410 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
411 mutex_unlock(&cs_ctl->dsp->pwr_lock);
412
413 return ret;
414 }
415
wm_coeff_tlv_put(struct snd_kcontrol * kctl,const unsigned int __user * bytes,unsigned int size)416 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
417 const unsigned int __user *bytes, unsigned int size)
418 {
419 struct soc_bytes_ext *bytes_ext =
420 (struct soc_bytes_ext *)kctl->private_value;
421 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
422 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
423 void *scratch;
424 int ret = 0;
425
426 scratch = vmalloc(size);
427 if (!scratch)
428 return -ENOMEM;
429
430 if (copy_from_user(scratch, bytes, size)) {
431 ret = -EFAULT;
432 } else {
433 mutex_lock(&cs_ctl->dsp->pwr_lock);
434 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size);
435 mutex_unlock(&cs_ctl->dsp->pwr_lock);
436 }
437 vfree(scratch);
438
439 return ret;
440 }
441
wm_coeff_put_acked(struct snd_kcontrol * kctl,struct snd_ctl_elem_value * ucontrol)442 static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
443 struct snd_ctl_elem_value *ucontrol)
444 {
445 struct soc_bytes_ext *bytes_ext =
446 (struct soc_bytes_ext *)kctl->private_value;
447 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
448 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
449 unsigned int val = ucontrol->value.integer.value[0];
450 int ret;
451
452 if (val == 0)
453 return 0; /* 0 means no event */
454
455 mutex_lock(&cs_ctl->dsp->pwr_lock);
456
457 if (cs_ctl->enabled)
458 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val);
459 else
460 ret = -EPERM;
461
462 mutex_unlock(&cs_ctl->dsp->pwr_lock);
463
464 if (ret < 0)
465 return ret;
466
467 return 1;
468 }
469
wm_coeff_get(struct snd_kcontrol * kctl,struct snd_ctl_elem_value * ucontrol)470 static int wm_coeff_get(struct snd_kcontrol *kctl,
471 struct snd_ctl_elem_value *ucontrol)
472 {
473 struct soc_bytes_ext *bytes_ext =
474 (struct soc_bytes_ext *)kctl->private_value;
475 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
476 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
477 char *p = ucontrol->value.bytes.data;
478 int ret;
479
480 mutex_lock(&cs_ctl->dsp->pwr_lock);
481 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
482 mutex_unlock(&cs_ctl->dsp->pwr_lock);
483
484 return ret;
485 }
486
wm_coeff_tlv_get(struct snd_kcontrol * kctl,unsigned int __user * bytes,unsigned int size)487 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
488 unsigned int __user *bytes, unsigned int size)
489 {
490 struct soc_bytes_ext *bytes_ext =
491 (struct soc_bytes_ext *)kctl->private_value;
492 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
493 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
494 int ret = 0;
495
496 mutex_lock(&cs_ctl->dsp->pwr_lock);
497
498 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size);
499
500 if (!ret && copy_to_user(bytes, cs_ctl->cache, size))
501 ret = -EFAULT;
502
503 mutex_unlock(&cs_ctl->dsp->pwr_lock);
504
505 return ret;
506 }
507
wm_coeff_get_acked(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)508 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
509 struct snd_ctl_elem_value *ucontrol)
510 {
511 /*
512 * Although it's not useful to read an acked control, we must satisfy
513 * user-side assumptions that all controls are readable and that a
514 * write of the same value should be filtered out (it's valid to send
515 * the same event number again to the firmware). We therefore return 0,
516 * meaning "no event" so valid event numbers will always be a change
517 */
518 ucontrol->value.integer.value[0] = 0;
519
520 return 0;
521 }
522
wmfw_convert_flags(unsigned int in,unsigned int len)523 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
524 {
525 unsigned int out, rd, wr, vol;
526
527 if (len > ADSP_MAX_STD_CTRL_SIZE) {
528 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
529 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
530 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
531
532 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
533 } else {
534 rd = SNDRV_CTL_ELEM_ACCESS_READ;
535 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
536 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
537
538 out = 0;
539 }
540
541 if (in) {
542 out |= rd;
543 if (in & WMFW_CTL_FLAG_WRITEABLE)
544 out |= wr;
545 if (in & WMFW_CTL_FLAG_VOLATILE)
546 out |= vol;
547 } else {
548 out |= rd | wr | vol;
549 }
550
551 return out;
552 }
553
wm_adsp_ctl_work(struct work_struct * work)554 static void wm_adsp_ctl_work(struct work_struct *work)
555 {
556 struct wm_coeff_ctl *ctl = container_of(work,
557 struct wm_coeff_ctl,
558 work);
559 struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
560 struct wm_adsp *dsp = container_of(cs_ctl->dsp,
561 struct wm_adsp,
562 cs_dsp);
563 struct snd_kcontrol_new *kcontrol;
564
565 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
566 if (!kcontrol)
567 return;
568
569 kcontrol->name = ctl->name;
570 kcontrol->info = wm_coeff_info;
571 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
572 kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
573 kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
574 kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len);
575
576 switch (cs_ctl->type) {
577 case WMFW_CTL_TYPE_ACKED:
578 kcontrol->get = wm_coeff_get_acked;
579 kcontrol->put = wm_coeff_put_acked;
580 break;
581 default:
582 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
583 ctl->bytes_ext.max = cs_ctl->len;
584 ctl->bytes_ext.get = wm_coeff_tlv_get;
585 ctl->bytes_ext.put = wm_coeff_tlv_put;
586 } else {
587 kcontrol->get = wm_coeff_get;
588 kcontrol->put = wm_coeff_put;
589 }
590 break;
591 }
592
593 snd_soc_add_component_controls(dsp->component, kcontrol, 1);
594
595 kfree(kcontrol);
596 }
597
wm_adsp_control_add(struct cs_dsp_coeff_ctl * cs_ctl)598 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
599 {
600 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
601 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
602 struct wm_coeff_ctl *ctl;
603 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
604 const char *region_name;
605 int ret;
606
607 if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
608 return 0;
609
610 region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type);
611 if (!region_name) {
612 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
613 return -EINVAL;
614 }
615
616 switch (cs_dsp->fw_ver) {
617 case 0:
618 case 1:
619 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
620 "%s %s %x", cs_dsp->name, region_name,
621 cs_ctl->alg_region.alg);
622 break;
623 case 2:
624 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
625 "%s%c %.12s %x", cs_dsp->name, *region_name,
626 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
627 break;
628 default:
629 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
630 "%s %.12s %x", cs_dsp->name,
631 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
632 break;
633 }
634
635 if (cs_ctl->subname) {
636 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
637 int skip = 0;
638
639 if (dsp->component->name_prefix)
640 avail -= strlen(dsp->component->name_prefix) + 1;
641
642 /* Truncate the subname from the start if it is too long */
643 if (cs_ctl->subname_len > avail)
644 skip = cs_ctl->subname_len - avail;
645
646 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
647 " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
648 }
649
650 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
651 if (!ctl)
652 return -ENOMEM;
653 ctl->cs_ctl = cs_ctl;
654
655 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
656 if (!ctl->name) {
657 ret = -ENOMEM;
658 goto err_ctl;
659 }
660
661 cs_ctl->priv = ctl;
662
663 INIT_WORK(&ctl->work, wm_adsp_ctl_work);
664 schedule_work(&ctl->work);
665
666 return 0;
667
668 err_ctl:
669 kfree(ctl);
670
671 return ret;
672 }
673
wm_adsp_control_remove(struct cs_dsp_coeff_ctl * cs_ctl)674 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
675 {
676 struct wm_coeff_ctl *ctl = cs_ctl->priv;
677
678 cancel_work_sync(&ctl->work);
679
680 kfree(ctl->name);
681 kfree(ctl);
682 }
683
wm_adsp_write_ctl(struct wm_adsp * dsp,const char * name,int type,unsigned int alg,void * buf,size_t len)684 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
685 unsigned int alg, void *buf, size_t len)
686 {
687 struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
688 struct wm_coeff_ctl *ctl;
689 struct snd_kcontrol *kcontrol;
690 char ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
691 int ret;
692
693 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
694 if (ret < 0)
695 return ret;
696
697 if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS))
698 return 0;
699
700 ctl = cs_ctl->priv;
701
702 if (dsp->component->name_prefix)
703 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s",
704 dsp->component->name_prefix, ctl->name);
705 else
706 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s",
707 ctl->name);
708
709 kcontrol = snd_soc_card_get_kcontrol(dsp->component->card, ctl_name);
710 if (!kcontrol) {
711 adsp_err(dsp, "Can't find kcontrol %s\n", ctl_name);
712 return -EINVAL;
713 }
714
715 snd_ctl_notify(dsp->component->card->snd_card,
716 SNDRV_CTL_EVENT_MASK_VALUE, &kcontrol->id);
717
718 return 0;
719 }
720 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
721
wm_adsp_read_ctl(struct wm_adsp * dsp,const char * name,int type,unsigned int alg,void * buf,size_t len)722 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
723 unsigned int alg, void *buf, size_t len)
724 {
725 return cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
726 0, buf, len);
727 }
728 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
729
wm_adsp_release_firmware_files(struct wm_adsp * dsp,const struct firmware * wmfw_firmware,char * wmfw_filename,const struct firmware * coeff_firmware,char * coeff_filename)730 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
731 const struct firmware *wmfw_firmware,
732 char *wmfw_filename,
733 const struct firmware *coeff_firmware,
734 char *coeff_filename)
735 {
736 if (wmfw_firmware)
737 release_firmware(wmfw_firmware);
738 kfree(wmfw_filename);
739
740 if (coeff_firmware)
741 release_firmware(coeff_firmware);
742 kfree(coeff_filename);
743 }
744
wm_adsp_request_firmware_file(struct wm_adsp * dsp,const struct firmware ** firmware,char ** filename,const char * dir,const char * system_name,const char * asoc_component_prefix,const char * filetype)745 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
746 const struct firmware **firmware, char **filename,
747 const char *dir, const char *system_name,
748 const char *asoc_component_prefix,
749 const char *filetype)
750 {
751 struct cs_dsp *cs_dsp = &dsp->cs_dsp;
752 char *s, c;
753 int ret = 0;
754
755 if (system_name && asoc_component_prefix)
756 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,
757 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name,
758 asoc_component_prefix, filetype);
759 else if (system_name)
760 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part,
761 dsp->fwf_name, wm_adsp_fw[dsp->fw].file, system_name,
762 filetype);
763 else
764 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, dsp->fwf_name,
765 wm_adsp_fw[dsp->fw].file, filetype);
766
767 if (*filename == NULL)
768 return -ENOMEM;
769
770 /*
771 * Make sure that filename is lower-case and any non alpha-numeric
772 * characters except full stop and forward slash are replaced with
773 * hyphens.
774 */
775 s = *filename;
776 while (*s) {
777 c = *s;
778 if (isalnum(c))
779 *s = tolower(c);
780 else if ((c != '.') && (c != '/'))
781 *s = '-';
782 s++;
783 }
784
785 ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev);
786 if (ret != 0) {
787 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
788 kfree(*filename);
789 *filename = NULL;
790 }
791
792 return ret;
793 }
794
795 static const char *cirrus_dir = "cirrus/";
wm_adsp_request_firmware_files(struct wm_adsp * dsp,const struct firmware ** wmfw_firmware,char ** wmfw_filename,const struct firmware ** coeff_firmware,char ** coeff_filename)796 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
797 const struct firmware **wmfw_firmware,
798 char **wmfw_filename,
799 const struct firmware **coeff_firmware,
800 char **coeff_filename)
801 {
802 const char *system_name = dsp->system_name;
803 const char *asoc_component_prefix = dsp->component->name_prefix;
804 int ret = 0;
805
806 if (system_name && asoc_component_prefix) {
807 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
808 cirrus_dir, system_name,
809 asoc_component_prefix, "wmfw")) {
810 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
811 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
812 cirrus_dir, system_name,
813 asoc_component_prefix, "bin");
814 return 0;
815 }
816 }
817
818 if (system_name) {
819 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
820 cirrus_dir, system_name,
821 NULL, "wmfw")) {
822 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
823 if (asoc_component_prefix)
824 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
825 cirrus_dir, system_name,
826 asoc_component_prefix, "bin");
827
828 if (!*coeff_firmware)
829 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
830 cirrus_dir, system_name,
831 NULL, "bin");
832 return 0;
833 }
834 }
835
836 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
837 "", NULL, NULL, "wmfw")) {
838 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
839 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
840 "", NULL, NULL, "bin");
841 return 0;
842 }
843
844 ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
845 cirrus_dir, NULL, NULL, "wmfw");
846 if (!ret) {
847 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
848 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
849 cirrus_dir, NULL, NULL, "bin");
850 return 0;
851 }
852
853 adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
854 cirrus_dir, dsp->part, dsp->fwf_name, wm_adsp_fw[dsp->fw].file,
855 system_name, asoc_component_prefix);
856
857 return -ENOENT;
858 }
859
wm_adsp_common_init(struct wm_adsp * dsp)860 static int wm_adsp_common_init(struct wm_adsp *dsp)
861 {
862 char *p;
863
864 INIT_LIST_HEAD(&dsp->compr_list);
865 INIT_LIST_HEAD(&dsp->buffer_list);
866
867 if (!dsp->fwf_name) {
868 p = devm_kstrdup(dsp->cs_dsp.dev, dsp->cs_dsp.name, GFP_KERNEL);
869 if (!p)
870 return -ENOMEM;
871
872 dsp->fwf_name = p;
873 for (; *p != 0; ++p)
874 *p = tolower(*p);
875 }
876
877 return 0;
878 }
879
wm_adsp1_init(struct wm_adsp * dsp)880 int wm_adsp1_init(struct wm_adsp *dsp)
881 {
882 int ret;
883
884 dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
885
886 ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
887 if (ret)
888 return ret;
889
890 return wm_adsp_common_init(dsp);
891 }
892 EXPORT_SYMBOL_GPL(wm_adsp1_init);
893
wm_adsp1_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)894 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
895 struct snd_kcontrol *kcontrol,
896 int event)
897 {
898 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
899 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
900 struct wm_adsp *dsp = &dsps[w->shift];
901 int ret = 0;
902 char *wmfw_filename = NULL;
903 const struct firmware *wmfw_firmware = NULL;
904 char *coeff_filename = NULL;
905 const struct firmware *coeff_firmware = NULL;
906
907 dsp->component = component;
908
909 switch (event) {
910 case SND_SOC_DAPM_POST_PMU:
911 ret = wm_adsp_request_firmware_files(dsp,
912 &wmfw_firmware, &wmfw_filename,
913 &coeff_firmware, &coeff_filename);
914 if (ret)
915 break;
916
917 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
918 wmfw_firmware, wmfw_filename,
919 coeff_firmware, coeff_filename,
920 wm_adsp_fw_text[dsp->fw]);
921
922 wm_adsp_release_firmware_files(dsp,
923 wmfw_firmware, wmfw_filename,
924 coeff_firmware, coeff_filename);
925 break;
926 case SND_SOC_DAPM_PRE_PMD:
927 cs_dsp_adsp1_power_down(&dsp->cs_dsp);
928 break;
929 default:
930 break;
931 }
932
933 return ret;
934 }
935 EXPORT_SYMBOL_GPL(wm_adsp1_event);
936
wm_adsp2_set_dspclk(struct snd_soc_dapm_widget * w,unsigned int freq)937 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
938 {
939 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
940 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
941 struct wm_adsp *dsp = &dsps[w->shift];
942
943 return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
944 }
945 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
946
wm_adsp2_preloader_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)947 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
948 struct snd_ctl_elem_value *ucontrol)
949 {
950 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
951 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
952 struct soc_mixer_control *mc =
953 (struct soc_mixer_control *)kcontrol->private_value;
954 struct wm_adsp *dsp = &dsps[mc->shift - 1];
955
956 ucontrol->value.integer.value[0] = dsp->preloaded;
957
958 return 0;
959 }
960 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
961
wm_adsp2_preloader_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)962 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
963 struct snd_ctl_elem_value *ucontrol)
964 {
965 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
966 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
967 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
968 struct soc_mixer_control *mc =
969 (struct soc_mixer_control *)kcontrol->private_value;
970 struct wm_adsp *dsp = &dsps[mc->shift - 1];
971 char preload[32];
972
973 if (dsp->preloaded == ucontrol->value.integer.value[0])
974 return 0;
975
976 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
977
978 if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
979 snd_soc_component_force_enable_pin(component, preload);
980 else
981 snd_soc_component_disable_pin(component, preload);
982
983 snd_soc_dapm_sync(dapm);
984
985 flush_work(&dsp->boot_work);
986
987 dsp->preloaded = ucontrol->value.integer.value[0];
988
989 if (dsp->toggle_preload) {
990 snd_soc_component_disable_pin(component, preload);
991 snd_soc_dapm_sync(dapm);
992 }
993
994 return 1;
995 }
996 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
997
wm_adsp_boot_work(struct work_struct * work)998 static void wm_adsp_boot_work(struct work_struct *work)
999 {
1000 struct wm_adsp *dsp = container_of(work,
1001 struct wm_adsp,
1002 boot_work);
1003 int ret = 0;
1004 char *wmfw_filename = NULL;
1005 const struct firmware *wmfw_firmware = NULL;
1006 char *coeff_filename = NULL;
1007 const struct firmware *coeff_firmware = NULL;
1008
1009 ret = wm_adsp_request_firmware_files(dsp,
1010 &wmfw_firmware, &wmfw_filename,
1011 &coeff_firmware, &coeff_filename);
1012 if (ret)
1013 return;
1014
1015 cs_dsp_power_up(&dsp->cs_dsp,
1016 wmfw_firmware, wmfw_filename,
1017 coeff_firmware, coeff_filename,
1018 wm_adsp_fw_text[dsp->fw]);
1019
1020 wm_adsp_release_firmware_files(dsp,
1021 wmfw_firmware, wmfw_filename,
1022 coeff_firmware, coeff_filename);
1023 }
1024
wm_adsp_early_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)1025 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1026 struct snd_kcontrol *kcontrol, int event)
1027 {
1028 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1029 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1030 struct wm_adsp *dsp = &dsps[w->shift];
1031
1032 switch (event) {
1033 case SND_SOC_DAPM_PRE_PMU:
1034 queue_work(system_unbound_wq, &dsp->boot_work);
1035 break;
1036 case SND_SOC_DAPM_PRE_PMD:
1037 cs_dsp_power_down(&dsp->cs_dsp);
1038 break;
1039 default:
1040 break;
1041 }
1042
1043 return 0;
1044 }
1045 EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1046
wm_adsp_pre_run(struct cs_dsp * cs_dsp)1047 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)
1048 {
1049 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1050
1051 if (!dsp->pre_run)
1052 return 0;
1053
1054 return (*dsp->pre_run)(dsp);
1055 }
1056
wm_adsp_event_post_run(struct cs_dsp * cs_dsp)1057 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1058 {
1059 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1060
1061 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1062 return wm_adsp_buffer_init(dsp);
1063
1064 return 0;
1065 }
1066
wm_adsp_event_post_stop(struct cs_dsp * cs_dsp)1067 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1068 {
1069 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1070
1071 if (wm_adsp_fw[dsp->fw].num_caps != 0)
1072 wm_adsp_buffer_free(dsp);
1073
1074 dsp->fatal_error = false;
1075 }
1076
wm_adsp_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)1077 int wm_adsp_event(struct snd_soc_dapm_widget *w,
1078 struct snd_kcontrol *kcontrol, int event)
1079 {
1080 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1081 struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1082 struct wm_adsp *dsp = &dsps[w->shift];
1083 int ret = 0;
1084
1085 switch (event) {
1086 case SND_SOC_DAPM_POST_PMU:
1087 flush_work(&dsp->boot_work);
1088 ret = cs_dsp_run(&dsp->cs_dsp);
1089 break;
1090 case SND_SOC_DAPM_PRE_PMD:
1091 cs_dsp_stop(&dsp->cs_dsp);
1092 break;
1093 default:
1094 break;
1095 }
1096
1097 return ret;
1098 }
1099 EXPORT_SYMBOL_GPL(wm_adsp_event);
1100
wm_adsp2_component_probe(struct wm_adsp * dsp,struct snd_soc_component * component)1101 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1102 {
1103 char preload[32];
1104
1105 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
1106 snd_soc_component_disable_pin(component, preload);
1107
1108 cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
1109
1110 dsp->component = component;
1111
1112 return 0;
1113 }
1114 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
1115
wm_adsp2_component_remove(struct wm_adsp * dsp,struct snd_soc_component * component)1116 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
1117 {
1118 cs_dsp_cleanup_debugfs(&dsp->cs_dsp);
1119
1120 return 0;
1121 }
1122 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
1123
wm_adsp2_init(struct wm_adsp * dsp)1124 int wm_adsp2_init(struct wm_adsp *dsp)
1125 {
1126 int ret;
1127
1128 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1129
1130 dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);
1131 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1132
1133 ret = cs_dsp_adsp2_init(&dsp->cs_dsp);
1134 if (ret)
1135 return ret;
1136
1137 return wm_adsp_common_init(dsp);
1138 }
1139 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1140
wm_halo_init(struct wm_adsp * dsp)1141 int wm_halo_init(struct wm_adsp *dsp)
1142 {
1143 int ret;
1144
1145 INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1146
1147 dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);
1148 dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1149
1150 ret = cs_dsp_halo_init(&dsp->cs_dsp);
1151 if (ret)
1152 return ret;
1153
1154 return wm_adsp_common_init(dsp);
1155 }
1156 EXPORT_SYMBOL_GPL(wm_halo_init);
1157
wm_adsp2_remove(struct wm_adsp * dsp)1158 void wm_adsp2_remove(struct wm_adsp *dsp)
1159 {
1160 cs_dsp_remove(&dsp->cs_dsp);
1161 }
1162 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
1163
wm_adsp_compr_attached(struct wm_adsp_compr * compr)1164 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
1165 {
1166 return compr->buf != NULL;
1167 }
1168
wm_adsp_compr_attach(struct wm_adsp_compr * compr)1169 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
1170 {
1171 struct wm_adsp_compr_buf *buf = NULL, *tmp;
1172
1173 if (compr->dsp->fatal_error)
1174 return -EINVAL;
1175
1176 list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
1177 if (!tmp->name || !strcmp(compr->name, tmp->name)) {
1178 buf = tmp;
1179 break;
1180 }
1181 }
1182
1183 if (!buf)
1184 return -EINVAL;
1185
1186 compr->buf = buf;
1187 buf->compr = compr;
1188
1189 return 0;
1190 }
1191
wm_adsp_compr_detach(struct wm_adsp_compr * compr)1192 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
1193 {
1194 if (!compr)
1195 return;
1196
1197 /* Wake the poll so it can see buffer is no longer attached */
1198 if (compr->stream)
1199 snd_compr_fragment_elapsed(compr->stream);
1200
1201 if (wm_adsp_compr_attached(compr)) {
1202 compr->buf->compr = NULL;
1203 compr->buf = NULL;
1204 }
1205 }
1206
wm_adsp_compr_open(struct wm_adsp * dsp,struct snd_compr_stream * stream)1207 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
1208 {
1209 struct wm_adsp_compr *compr, *tmp;
1210 struct snd_soc_pcm_runtime *rtd = stream->private_data;
1211 int ret = 0;
1212
1213 mutex_lock(&dsp->cs_dsp.pwr_lock);
1214
1215 if (wm_adsp_fw[dsp->fw].num_caps == 0) {
1216 adsp_err(dsp, "%s: Firmware does not support compressed API\n",
1217 asoc_rtd_to_codec(rtd, 0)->name);
1218 ret = -ENXIO;
1219 goto out;
1220 }
1221
1222 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
1223 adsp_err(dsp, "%s: Firmware does not support stream direction\n",
1224 asoc_rtd_to_codec(rtd, 0)->name);
1225 ret = -EINVAL;
1226 goto out;
1227 }
1228
1229 list_for_each_entry(tmp, &dsp->compr_list, list) {
1230 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) {
1231 adsp_err(dsp, "%s: Only a single stream supported per dai\n",
1232 asoc_rtd_to_codec(rtd, 0)->name);
1233 ret = -EBUSY;
1234 goto out;
1235 }
1236 }
1237
1238 compr = kzalloc(sizeof(*compr), GFP_KERNEL);
1239 if (!compr) {
1240 ret = -ENOMEM;
1241 goto out;
1242 }
1243
1244 compr->dsp = dsp;
1245 compr->stream = stream;
1246 compr->name = asoc_rtd_to_codec(rtd, 0)->name;
1247
1248 list_add_tail(&compr->list, &dsp->compr_list);
1249
1250 stream->runtime->private_data = compr;
1251
1252 out:
1253 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1254
1255 return ret;
1256 }
1257 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
1258
wm_adsp_compr_free(struct snd_soc_component * component,struct snd_compr_stream * stream)1259 int wm_adsp_compr_free(struct snd_soc_component *component,
1260 struct snd_compr_stream *stream)
1261 {
1262 struct wm_adsp_compr *compr = stream->runtime->private_data;
1263 struct wm_adsp *dsp = compr->dsp;
1264
1265 mutex_lock(&dsp->cs_dsp.pwr_lock);
1266
1267 wm_adsp_compr_detach(compr);
1268 list_del(&compr->list);
1269
1270 kfree(compr->raw_buf);
1271 kfree(compr);
1272
1273 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1274
1275 return 0;
1276 }
1277 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
1278
wm_adsp_compr_check_params(struct snd_compr_stream * stream,struct snd_compr_params * params)1279 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
1280 struct snd_compr_params *params)
1281 {
1282 struct wm_adsp_compr *compr = stream->runtime->private_data;
1283 struct wm_adsp *dsp = compr->dsp;
1284 const struct wm_adsp_fw_caps *caps;
1285 const struct snd_codec_desc *desc;
1286 int i, j;
1287
1288 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
1289 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
1290 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
1291 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
1292 params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) {
1293 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",
1294 params->buffer.fragment_size,
1295 params->buffer.fragments);
1296
1297 return -EINVAL;
1298 }
1299
1300 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
1301 caps = &wm_adsp_fw[dsp->fw].caps[i];
1302 desc = &caps->desc;
1303
1304 if (caps->id != params->codec.id)
1305 continue;
1306
1307 if (stream->direction == SND_COMPRESS_PLAYBACK) {
1308 if (desc->max_ch < params->codec.ch_out)
1309 continue;
1310 } else {
1311 if (desc->max_ch < params->codec.ch_in)
1312 continue;
1313 }
1314
1315 if (!(desc->formats & (1 << params->codec.format)))
1316 continue;
1317
1318 for (j = 0; j < desc->num_sample_rates; ++j)
1319 if (desc->sample_rates[j] == params->codec.sample_rate)
1320 return 0;
1321 }
1322
1323 compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
1324 params->codec.id, params->codec.ch_in, params->codec.ch_out,
1325 params->codec.sample_rate, params->codec.format);
1326 return -EINVAL;
1327 }
1328
wm_adsp_compr_frag_words(struct wm_adsp_compr * compr)1329 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
1330 {
1331 return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE;
1332 }
1333
wm_adsp_compr_set_params(struct snd_soc_component * component,struct snd_compr_stream * stream,struct snd_compr_params * params)1334 int wm_adsp_compr_set_params(struct snd_soc_component *component,
1335 struct snd_compr_stream *stream,
1336 struct snd_compr_params *params)
1337 {
1338 struct wm_adsp_compr *compr = stream->runtime->private_data;
1339 unsigned int size;
1340 int ret;
1341
1342 ret = wm_adsp_compr_check_params(stream, params);
1343 if (ret)
1344 return ret;
1345
1346 compr->size = params->buffer;
1347
1348 compr_dbg(compr, "fragment_size=%d fragments=%d\n",
1349 compr->size.fragment_size, compr->size.fragments);
1350
1351 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
1352 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
1353 if (!compr->raw_buf)
1354 return -ENOMEM;
1355
1356 compr->sample_rate = params->codec.sample_rate;
1357
1358 return 0;
1359 }
1360 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
1361
wm_adsp_compr_get_caps(struct snd_soc_component * component,struct snd_compr_stream * stream,struct snd_compr_caps * caps)1362 int wm_adsp_compr_get_caps(struct snd_soc_component *component,
1363 struct snd_compr_stream *stream,
1364 struct snd_compr_caps *caps)
1365 {
1366 struct wm_adsp_compr *compr = stream->runtime->private_data;
1367 int fw = compr->dsp->fw;
1368 int i;
1369
1370 if (wm_adsp_fw[fw].caps) {
1371 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
1372 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
1373
1374 caps->num_codecs = i;
1375 caps->direction = wm_adsp_fw[fw].compr_direction;
1376
1377 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
1378 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
1379 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
1380 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
1381 }
1382
1383 return 0;
1384 }
1385 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
1386
wm_adsp_buffer_read(struct wm_adsp_compr_buf * buf,unsigned int field_offset,u32 * data)1387 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
1388 unsigned int field_offset, u32 *data)
1389 {
1390 return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1391 buf->host_buf_ptr + field_offset, data);
1392 }
1393
wm_adsp_buffer_write(struct wm_adsp_compr_buf * buf,unsigned int field_offset,u32 data)1394 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
1395 unsigned int field_offset, u32 data)
1396 {
1397 return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1398 buf->host_buf_ptr + field_offset,
1399 data);
1400 }
1401
wm_adsp_buffer_populate(struct wm_adsp_compr_buf * buf)1402 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
1403 {
1404 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
1405 struct wm_adsp_buffer_region *region;
1406 u32 offset = 0;
1407 int i, ret;
1408
1409 buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
1410 GFP_KERNEL);
1411 if (!buf->regions)
1412 return -ENOMEM;
1413
1414 for (i = 0; i < caps->num_regions; ++i) {
1415 region = &buf->regions[i];
1416
1417 region->offset = offset;
1418 region->mem_type = caps->region_defs[i].mem_type;
1419
1420 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
1421 ®ion->base_addr);
1422 if (ret < 0)
1423 return ret;
1424
1425 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
1426 &offset);
1427 if (ret < 0)
1428 return ret;
1429
1430 region->cumulative_size = offset;
1431
1432 compr_dbg(buf,
1433 "region=%d type=%d base=%08x off=%08x size=%08x\n",
1434 i, region->mem_type, region->base_addr,
1435 region->offset, region->cumulative_size);
1436 }
1437
1438 return 0;
1439 }
1440
wm_adsp_buffer_clear(struct wm_adsp_compr_buf * buf)1441 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
1442 {
1443 buf->irq_count = 0xFFFFFFFF;
1444 buf->read_index = -1;
1445 buf->avail = 0;
1446 }
1447
wm_adsp_buffer_alloc(struct wm_adsp * dsp)1448 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
1449 {
1450 struct wm_adsp_compr_buf *buf;
1451
1452 buf = kzalloc(sizeof(*buf), GFP_KERNEL);
1453 if (!buf)
1454 return NULL;
1455
1456 buf->dsp = dsp;
1457
1458 wm_adsp_buffer_clear(buf);
1459
1460 return buf;
1461 }
1462
wm_adsp_buffer_parse_legacy(struct wm_adsp * dsp)1463 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
1464 {
1465 struct cs_dsp_alg_region *alg_region;
1466 struct wm_adsp_compr_buf *buf;
1467 u32 xmalg, addr, magic;
1468 int i, ret;
1469
1470 alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
1471 if (!alg_region) {
1472 adsp_err(dsp, "No algorithm region found\n");
1473 return -EINVAL;
1474 }
1475
1476 xmalg = dsp->sys_config_size / sizeof(__be32);
1477
1478 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
1479 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
1480 if (ret < 0)
1481 return ret;
1482
1483 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
1484 return -ENODEV;
1485
1486 buf = wm_adsp_buffer_alloc(dsp);
1487 if (!buf)
1488 return -ENOMEM;
1489
1490 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
1491 for (i = 0; i < 5; ++i) {
1492 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
1493 &buf->host_buf_ptr);
1494 if (ret < 0)
1495 goto err;
1496
1497 if (buf->host_buf_ptr)
1498 break;
1499
1500 usleep_range(1000, 2000);
1501 }
1502
1503 if (!buf->host_buf_ptr) {
1504 ret = -EIO;
1505 goto err;
1506 }
1507
1508 buf->host_buf_mem_type = WMFW_ADSP2_XM;
1509
1510 ret = wm_adsp_buffer_populate(buf);
1511 if (ret < 0)
1512 goto err;
1513
1514 list_add_tail(&buf->list, &dsp->buffer_list);
1515
1516 compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1517
1518 return 0;
1519
1520 err:
1521 kfree(buf);
1522
1523 return ret;
1524 }
1525
wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl * cs_ctl)1526 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)
1527 {
1528 struct wm_adsp_host_buf_coeff_v1 coeff_v1;
1529 struct wm_adsp_compr_buf *buf;
1530 struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
1531 unsigned int version = 0;
1532 int ret, i;
1533
1534 for (i = 0; i < 5; ++i) {
1535 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,
1536 min(cs_ctl->len, sizeof(coeff_v1)));
1537 if (ret < 0)
1538 return ret;
1539
1540 if (coeff_v1.host_buf_ptr)
1541 break;
1542
1543 usleep_range(1000, 2000);
1544 }
1545
1546 if (!coeff_v1.host_buf_ptr) {
1547 adsp_err(dsp, "Failed to acquire host buffer\n");
1548 return -EIO;
1549 }
1550
1551 buf = wm_adsp_buffer_alloc(dsp);
1552 if (!buf)
1553 return -ENOMEM;
1554
1555 buf->host_buf_mem_type = cs_ctl->alg_region.type;
1556 buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
1557
1558 ret = wm_adsp_buffer_populate(buf);
1559 if (ret < 0)
1560 goto err;
1561
1562 /*
1563 * v0 host_buffer coefficients didn't have versioning, so if the
1564 * control is one word, assume version 0.
1565 */
1566 if (cs_ctl->len == 4)
1567 goto done;
1568
1569 version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
1570 version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
1571
1572 if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
1573 adsp_err(dsp,
1574 "Host buffer coeff ver %u > supported version %u\n",
1575 version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
1576 ret = -EINVAL;
1577 goto err;
1578 }
1579
1580 cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1581
1582 buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
1583 (char *)&coeff_v1.name);
1584
1585 done:
1586 list_add_tail(&buf->list, &dsp->buffer_list);
1587
1588 compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
1589 buf->host_buf_ptr, version);
1590
1591 return version;
1592
1593 err:
1594 kfree(buf);
1595
1596 return ret;
1597 }
1598
wm_adsp_buffer_init(struct wm_adsp * dsp)1599 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
1600 {
1601 struct cs_dsp_coeff_ctl *cs_ctl;
1602 int ret;
1603
1604 list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {
1605 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
1606 continue;
1607
1608 if (!cs_ctl->enabled)
1609 continue;
1610
1611 ret = wm_adsp_buffer_parse_coeff(cs_ctl);
1612 if (ret < 0) {
1613 adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
1614 goto error;
1615 } else if (ret == 0) {
1616 /* Only one buffer supported for version 0 */
1617 return 0;
1618 }
1619 }
1620
1621 if (list_empty(&dsp->buffer_list)) {
1622 /* Fall back to legacy support */
1623 ret = wm_adsp_buffer_parse_legacy(dsp);
1624 if (ret == -ENODEV)
1625 adsp_info(dsp, "Legacy support not available\n");
1626 else if (ret)
1627 adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);
1628 }
1629
1630 return 0;
1631
1632 error:
1633 wm_adsp_buffer_free(dsp);
1634 return ret;
1635 }
1636
wm_adsp_buffer_free(struct wm_adsp * dsp)1637 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
1638 {
1639 struct wm_adsp_compr_buf *buf, *tmp;
1640
1641 list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
1642 wm_adsp_compr_detach(buf->compr);
1643
1644 kfree(buf->name);
1645 kfree(buf->regions);
1646 list_del(&buf->list);
1647 kfree(buf);
1648 }
1649
1650 return 0;
1651 }
1652
wm_adsp_buffer_get_error(struct wm_adsp_compr_buf * buf)1653 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
1654 {
1655 int ret;
1656
1657 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
1658 if (ret < 0) {
1659 compr_err(buf, "Failed to check buffer error: %d\n", ret);
1660 return ret;
1661 }
1662 if (buf->error != 0) {
1663 compr_err(buf, "Buffer error occurred: %d\n", buf->error);
1664 return -EIO;
1665 }
1666
1667 return 0;
1668 }
1669
wm_adsp_compr_trigger(struct snd_soc_component * component,struct snd_compr_stream * stream,int cmd)1670 int wm_adsp_compr_trigger(struct snd_soc_component *component,
1671 struct snd_compr_stream *stream, int cmd)
1672 {
1673 struct wm_adsp_compr *compr = stream->runtime->private_data;
1674 struct wm_adsp *dsp = compr->dsp;
1675 int ret = 0;
1676
1677 compr_dbg(compr, "Trigger: %d\n", cmd);
1678
1679 mutex_lock(&dsp->cs_dsp.pwr_lock);
1680
1681 switch (cmd) {
1682 case SNDRV_PCM_TRIGGER_START:
1683 if (!wm_adsp_compr_attached(compr)) {
1684 ret = wm_adsp_compr_attach(compr);
1685 if (ret < 0) {
1686 compr_err(compr, "Failed to link buffer and stream: %d\n",
1687 ret);
1688 break;
1689 }
1690 }
1691
1692 ret = wm_adsp_buffer_get_error(compr->buf);
1693 if (ret < 0)
1694 break;
1695
1696 /* Trigger the IRQ at one fragment of data */
1697 ret = wm_adsp_buffer_write(compr->buf,
1698 HOST_BUFFER_FIELD(high_water_mark),
1699 wm_adsp_compr_frag_words(compr));
1700 if (ret < 0) {
1701 compr_err(compr, "Failed to set high water mark: %d\n",
1702 ret);
1703 break;
1704 }
1705 break;
1706 case SNDRV_PCM_TRIGGER_STOP:
1707 if (wm_adsp_compr_attached(compr))
1708 wm_adsp_buffer_clear(compr->buf);
1709 break;
1710 default:
1711 ret = -EINVAL;
1712 break;
1713 }
1714
1715 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1716
1717 return ret;
1718 }
1719 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
1720
wm_adsp_buffer_size(struct wm_adsp_compr_buf * buf)1721 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
1722 {
1723 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
1724
1725 return buf->regions[last_region].cumulative_size;
1726 }
1727
wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf * buf)1728 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
1729 {
1730 u32 next_read_index, next_write_index;
1731 int write_index, read_index, avail;
1732 int ret;
1733
1734 /* Only sync read index if we haven't already read a valid index */
1735 if (buf->read_index < 0) {
1736 ret = wm_adsp_buffer_read(buf,
1737 HOST_BUFFER_FIELD(next_read_index),
1738 &next_read_index);
1739 if (ret < 0)
1740 return ret;
1741
1742 read_index = sign_extend32(next_read_index, 23);
1743
1744 if (read_index < 0) {
1745 compr_dbg(buf, "Avail check on unstarted stream\n");
1746 return 0;
1747 }
1748
1749 buf->read_index = read_index;
1750 }
1751
1752 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
1753 &next_write_index);
1754 if (ret < 0)
1755 return ret;
1756
1757 write_index = sign_extend32(next_write_index, 23);
1758
1759 avail = write_index - buf->read_index;
1760 if (avail < 0)
1761 avail += wm_adsp_buffer_size(buf);
1762
1763 compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
1764 buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);
1765
1766 buf->avail = avail;
1767
1768 return 0;
1769 }
1770
wm_adsp_compr_handle_irq(struct wm_adsp * dsp)1771 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
1772 {
1773 struct wm_adsp_compr_buf *buf;
1774 struct wm_adsp_compr *compr;
1775 int ret = 0;
1776
1777 mutex_lock(&dsp->cs_dsp.pwr_lock);
1778
1779 if (list_empty(&dsp->buffer_list)) {
1780 ret = -ENODEV;
1781 goto out;
1782 }
1783
1784 adsp_dbg(dsp, "Handling buffer IRQ\n");
1785
1786 list_for_each_entry(buf, &dsp->buffer_list, list) {
1787 compr = buf->compr;
1788
1789 ret = wm_adsp_buffer_get_error(buf);
1790 if (ret < 0)
1791 goto out_notify; /* Wake poll to report error */
1792
1793 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
1794 &buf->irq_count);
1795 if (ret < 0) {
1796 compr_err(buf, "Failed to get irq_count: %d\n", ret);
1797 goto out;
1798 }
1799
1800 ret = wm_adsp_buffer_update_avail(buf);
1801 if (ret < 0) {
1802 compr_err(buf, "Error reading avail: %d\n", ret);
1803 goto out;
1804 }
1805
1806 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
1807 ret = WM_ADSP_COMPR_VOICE_TRIGGER;
1808
1809 out_notify:
1810 if (compr && compr->stream)
1811 snd_compr_fragment_elapsed(compr->stream);
1812 }
1813
1814 out:
1815 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1816
1817 return ret;
1818 }
1819 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
1820
wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf * buf)1821 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
1822 {
1823 if (buf->irq_count & 0x01)
1824 return 0;
1825
1826 compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);
1827
1828 buf->irq_count |= 0x01;
1829
1830 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
1831 buf->irq_count);
1832 }
1833
wm_adsp_compr_pointer(struct snd_soc_component * component,struct snd_compr_stream * stream,struct snd_compr_tstamp * tstamp)1834 int wm_adsp_compr_pointer(struct snd_soc_component *component,
1835 struct snd_compr_stream *stream,
1836 struct snd_compr_tstamp *tstamp)
1837 {
1838 struct wm_adsp_compr *compr = stream->runtime->private_data;
1839 struct wm_adsp *dsp = compr->dsp;
1840 struct wm_adsp_compr_buf *buf;
1841 int ret = 0;
1842
1843 compr_dbg(compr, "Pointer request\n");
1844
1845 mutex_lock(&dsp->cs_dsp.pwr_lock);
1846
1847 buf = compr->buf;
1848
1849 if (dsp->fatal_error || !buf || buf->error) {
1850 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
1851 ret = -EIO;
1852 goto out;
1853 }
1854
1855 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1856 ret = wm_adsp_buffer_update_avail(buf);
1857 if (ret < 0) {
1858 compr_err(compr, "Error reading avail: %d\n", ret);
1859 goto out;
1860 }
1861
1862 /*
1863 * If we really have less than 1 fragment available tell the
1864 * DSP to inform us once a whole fragment is available.
1865 */
1866 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1867 ret = wm_adsp_buffer_get_error(buf);
1868 if (ret < 0) {
1869 if (buf->error)
1870 snd_compr_stop_error(stream,
1871 SNDRV_PCM_STATE_XRUN);
1872 goto out;
1873 }
1874
1875 ret = wm_adsp_buffer_reenable_irq(buf);
1876 if (ret < 0) {
1877 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
1878 ret);
1879 goto out;
1880 }
1881 }
1882 }
1883
1884 tstamp->copied_total = compr->copied_total;
1885 tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
1886 tstamp->sampling_rate = compr->sample_rate;
1887
1888 out:
1889 mutex_unlock(&dsp->cs_dsp.pwr_lock);
1890
1891 return ret;
1892 }
1893 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
1894
wm_adsp_buffer_capture_block(struct wm_adsp_compr * compr,int target)1895 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
1896 {
1897 struct wm_adsp_compr_buf *buf = compr->buf;
1898 unsigned int adsp_addr;
1899 int mem_type, nwords, max_read;
1900 int i, ret;
1901
1902 /* Calculate read parameters */
1903 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
1904 if (buf->read_index < buf->regions[i].cumulative_size)
1905 break;
1906
1907 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
1908 return -EINVAL;
1909
1910 mem_type = buf->regions[i].mem_type;
1911 adsp_addr = buf->regions[i].base_addr +
1912 (buf->read_index - buf->regions[i].offset);
1913
1914 max_read = wm_adsp_compr_frag_words(compr);
1915 nwords = buf->regions[i].cumulative_size - buf->read_index;
1916
1917 if (nwords > target)
1918 nwords = target;
1919 if (nwords > buf->avail)
1920 nwords = buf->avail;
1921 if (nwords > max_read)
1922 nwords = max_read;
1923 if (!nwords)
1924 return 0;
1925
1926 /* Read data from DSP */
1927 ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,
1928 nwords, (__be32 *)compr->raw_buf);
1929 if (ret < 0)
1930 return ret;
1931
1932 cs_dsp_remove_padding(compr->raw_buf, nwords);
1933
1934 /* update read index to account for words read */
1935 buf->read_index += nwords;
1936 if (buf->read_index == wm_adsp_buffer_size(buf))
1937 buf->read_index = 0;
1938
1939 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
1940 buf->read_index);
1941 if (ret < 0)
1942 return ret;
1943
1944 /* update avail to account for words read */
1945 buf->avail -= nwords;
1946
1947 return nwords;
1948 }
1949
wm_adsp_compr_read(struct wm_adsp_compr * compr,char __user * buf,size_t count)1950 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
1951 char __user *buf, size_t count)
1952 {
1953 struct wm_adsp *dsp = compr->dsp;
1954 int ntotal = 0;
1955 int nwords, nbytes;
1956
1957 compr_dbg(compr, "Requested read of %zu bytes\n", count);
1958
1959 if (dsp->fatal_error || !compr->buf || compr->buf->error) {
1960 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
1961 return -EIO;
1962 }
1963
1964 count /= CS_DSP_DATA_WORD_SIZE;
1965
1966 do {
1967 nwords = wm_adsp_buffer_capture_block(compr, count);
1968 if (nwords < 0) {
1969 compr_err(compr, "Failed to capture block: %d\n",
1970 nwords);
1971 return nwords;
1972 }
1973
1974 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
1975
1976 compr_dbg(compr, "Read %d bytes\n", nbytes);
1977
1978 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
1979 compr_err(compr, "Failed to copy data to user: %d, %d\n",
1980 ntotal, nbytes);
1981 return -EFAULT;
1982 }
1983
1984 count -= nwords;
1985 ntotal += nbytes;
1986 } while (nwords > 0 && count > 0);
1987
1988 compr->copied_total += ntotal;
1989
1990 return ntotal;
1991 }
1992
wm_adsp_compr_copy(struct snd_soc_component * component,struct snd_compr_stream * stream,char __user * buf,size_t count)1993 int wm_adsp_compr_copy(struct snd_soc_component *component,
1994 struct snd_compr_stream *stream, char __user *buf,
1995 size_t count)
1996 {
1997 struct wm_adsp_compr *compr = stream->runtime->private_data;
1998 struct wm_adsp *dsp = compr->dsp;
1999 int ret;
2000
2001 mutex_lock(&dsp->cs_dsp.pwr_lock);
2002
2003 if (stream->direction == SND_COMPRESS_CAPTURE)
2004 ret = wm_adsp_compr_read(compr, buf, count);
2005 else
2006 ret = -ENOTSUPP;
2007
2008 mutex_unlock(&dsp->cs_dsp.pwr_lock);
2009
2010 return ret;
2011 }
2012 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
2013
wm_adsp_fatal_error(struct cs_dsp * cs_dsp)2014 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)
2015 {
2016 struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
2017 struct wm_adsp_compr *compr;
2018
2019 dsp->fatal_error = true;
2020
2021 list_for_each_entry(compr, &dsp->compr_list, list) {
2022 if (compr->stream)
2023 snd_compr_fragment_elapsed(compr->stream);
2024 }
2025 }
2026
wm_adsp2_bus_error(int irq,void * data)2027 irqreturn_t wm_adsp2_bus_error(int irq, void *data)
2028 {
2029 struct wm_adsp *dsp = (struct wm_adsp *)data;
2030
2031 cs_dsp_adsp2_bus_error(&dsp->cs_dsp);
2032
2033 return IRQ_HANDLED;
2034 }
2035 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
2036
wm_halo_bus_error(int irq,void * data)2037 irqreturn_t wm_halo_bus_error(int irq, void *data)
2038 {
2039 struct wm_adsp *dsp = (struct wm_adsp *)data;
2040
2041 cs_dsp_halo_bus_error(&dsp->cs_dsp);
2042
2043 return IRQ_HANDLED;
2044 }
2045 EXPORT_SYMBOL_GPL(wm_halo_bus_error);
2046
wm_halo_wdt_expire(int irq,void * data)2047 irqreturn_t wm_halo_wdt_expire(int irq, void *data)
2048 {
2049 struct wm_adsp *dsp = data;
2050
2051 cs_dsp_halo_wdt_expire(&dsp->cs_dsp);
2052
2053 return IRQ_HANDLED;
2054 }
2055 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
2056
2057 static const struct cs_dsp_client_ops wm_adsp1_client_ops = {
2058 .control_add = wm_adsp_control_add,
2059 .control_remove = wm_adsp_control_remove,
2060 };
2061
2062 static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
2063 .control_add = wm_adsp_control_add,
2064 .control_remove = wm_adsp_control_remove,
2065 .pre_run = wm_adsp_pre_run,
2066 .post_run = wm_adsp_event_post_run,
2067 .post_stop = wm_adsp_event_post_stop,
2068 .watchdog_expired = wm_adsp_fatal_error,
2069 };
2070
2071 MODULE_LICENSE("GPL v2");
2072 MODULE_IMPORT_NS(FW_CS_DSP);
2073