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[mirror_ubuntu-artful-kernel.git] / sound / soc / codecs / wm_adsp.c
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
163 #define ADSP_MAX_STD_CTRL_SIZE 512
164
165 struct wm_adsp_buf {
166 struct list_head list;
167 void *buf;
168 };
169
170 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
171 struct list_head *list)
172 {
173 struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
174
175 if (buf == NULL)
176 return NULL;
177
178 buf->buf = vmalloc(len);
179 if (!buf->buf) {
180 vfree(buf);
181 return NULL;
182 }
183 memcpy(buf->buf, src, len);
184
185 if (list)
186 list_add_tail(&buf->list, list);
187
188 return buf;
189 }
190
191 static void wm_adsp_buf_free(struct list_head *list)
192 {
193 while (!list_empty(list)) {
194 struct wm_adsp_buf *buf = list_first_entry(list,
195 struct wm_adsp_buf,
196 list);
197 list_del(&buf->list);
198 vfree(buf->buf);
199 kfree(buf);
200 }
201 }
202
203 #define WM_ADSP_FW_MBC_VSS 0
204 #define WM_ADSP_FW_HIFI 1
205 #define WM_ADSP_FW_TX 2
206 #define WM_ADSP_FW_TX_SPK 3
207 #define WM_ADSP_FW_RX 4
208 #define WM_ADSP_FW_RX_ANC 5
209 #define WM_ADSP_FW_CTRL 6
210 #define WM_ADSP_FW_ASR 7
211 #define WM_ADSP_FW_TRACE 8
212 #define WM_ADSP_FW_SPK_PROT 9
213 #define WM_ADSP_FW_MISC 10
214
215 #define WM_ADSP_NUM_FW 11
216
217 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
218 [WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
219 [WM_ADSP_FW_HIFI] = "MasterHiFi",
220 [WM_ADSP_FW_TX] = "Tx",
221 [WM_ADSP_FW_TX_SPK] = "Tx Speaker",
222 [WM_ADSP_FW_RX] = "Rx",
223 [WM_ADSP_FW_RX_ANC] = "Rx ANC",
224 [WM_ADSP_FW_CTRL] = "Voice Ctrl",
225 [WM_ADSP_FW_ASR] = "ASR Assist",
226 [WM_ADSP_FW_TRACE] = "Dbg Trace",
227 [WM_ADSP_FW_SPK_PROT] = "Protection",
228 [WM_ADSP_FW_MISC] = "Misc",
229 };
230
231 struct wm_adsp_system_config_xm_hdr {
232 __be32 sys_enable;
233 __be32 fw_id;
234 __be32 fw_rev;
235 __be32 boot_status;
236 __be32 watchdog;
237 __be32 dma_buffer_size;
238 __be32 rdma[6];
239 __be32 wdma[8];
240 __be32 build_job_name[3];
241 __be32 build_job_number;
242 };
243
244 struct wm_adsp_alg_xm_struct {
245 __be32 magic;
246 __be32 smoothing;
247 __be32 threshold;
248 __be32 host_buf_ptr;
249 __be32 start_seq;
250 __be32 high_water_mark;
251 __be32 low_water_mark;
252 __be64 smoothed_power;
253 };
254
255 struct wm_adsp_buffer {
256 __be32 X_buf_base; /* XM base addr of first X area */
257 __be32 X_buf_size; /* Size of 1st X area in words */
258 __be32 X_buf_base2; /* XM base addr of 2nd X area */
259 __be32 X_buf_brk; /* Total X size in words */
260 __be32 Y_buf_base; /* YM base addr of Y area */
261 __be32 wrap; /* Total size X and Y in words */
262 __be32 high_water_mark; /* Point at which IRQ is asserted */
263 __be32 irq_count; /* bits 1-31 count IRQ assertions */
264 __be32 irq_ack; /* acked IRQ count, bit 0 enables IRQ */
265 __be32 next_write_index; /* word index of next write */
266 __be32 next_read_index; /* word index of next read */
267 __be32 error; /* error if any */
268 __be32 oldest_block_index; /* word index of oldest surviving */
269 __be32 requested_rewind; /* how many blocks rewind was done */
270 __be32 reserved_space; /* internal */
271 __be32 min_free; /* min free space since stream start */
272 __be32 blocks_written[2]; /* total blocks written (64 bit) */
273 __be32 words_written[2]; /* total words written (64 bit) */
274 };
275
276 struct wm_adsp_compr;
277
278 struct wm_adsp_compr_buf {
279 struct wm_adsp *dsp;
280 struct wm_adsp_compr *compr;
281
282 struct wm_adsp_buffer_region *regions;
283 u32 host_buf_ptr;
284
285 u32 error;
286 u32 irq_count;
287 int read_index;
288 int avail;
289 };
290
291 struct wm_adsp_compr {
292 struct wm_adsp *dsp;
293 struct wm_adsp_compr_buf *buf;
294
295 struct snd_compr_stream *stream;
296 struct snd_compressed_buffer size;
297
298 u32 *raw_buf;
299 unsigned int copied_total;
300
301 unsigned int sample_rate;
302 };
303
304 #define WM_ADSP_DATA_WORD_SIZE 3
305
306 #define WM_ADSP_MIN_FRAGMENTS 1
307 #define WM_ADSP_MAX_FRAGMENTS 256
308 #define WM_ADSP_MIN_FRAGMENT_SIZE (64 * WM_ADSP_DATA_WORD_SIZE)
309 #define WM_ADSP_MAX_FRAGMENT_SIZE (4096 * WM_ADSP_DATA_WORD_SIZE)
310
311 #define WM_ADSP_ALG_XM_STRUCT_MAGIC 0x49aec7
312
313 #define HOST_BUFFER_FIELD(field) \
314 (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
315
316 #define ALG_XM_FIELD(field) \
317 (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
318
319 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
320 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
321
322 struct wm_adsp_buffer_region {
323 unsigned int offset;
324 unsigned int cumulative_size;
325 unsigned int mem_type;
326 unsigned int base_addr;
327 };
328
329 struct wm_adsp_buffer_region_def {
330 unsigned int mem_type;
331 unsigned int base_offset;
332 unsigned int size_offset;
333 };
334
335 static const struct wm_adsp_buffer_region_def default_regions[] = {
336 {
337 .mem_type = WMFW_ADSP2_XM,
338 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
339 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
340 },
341 {
342 .mem_type = WMFW_ADSP2_XM,
343 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
344 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
345 },
346 {
347 .mem_type = WMFW_ADSP2_YM,
348 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
349 .size_offset = HOST_BUFFER_FIELD(wrap),
350 },
351 };
352
353 struct wm_adsp_fw_caps {
354 u32 id;
355 struct snd_codec_desc desc;
356 int num_regions;
357 const struct wm_adsp_buffer_region_def *region_defs;
358 };
359
360 static const struct wm_adsp_fw_caps ctrl_caps[] = {
361 {
362 .id = SND_AUDIOCODEC_BESPOKE,
363 .desc = {
364 .max_ch = 1,
365 .sample_rates = { 16000 },
366 .num_sample_rates = 1,
367 .formats = SNDRV_PCM_FMTBIT_S16_LE,
368 },
369 .num_regions = ARRAY_SIZE(default_regions),
370 .region_defs = default_regions,
371 },
372 };
373
374 static const struct wm_adsp_fw_caps trace_caps[] = {
375 {
376 .id = SND_AUDIOCODEC_BESPOKE,
377 .desc = {
378 .max_ch = 8,
379 .sample_rates = {
380 4000, 8000, 11025, 12000, 16000, 22050,
381 24000, 32000, 44100, 48000, 64000, 88200,
382 96000, 176400, 192000
383 },
384 .num_sample_rates = 15,
385 .formats = SNDRV_PCM_FMTBIT_S16_LE,
386 },
387 .num_regions = ARRAY_SIZE(default_regions),
388 .region_defs = default_regions,
389 },
390 };
391
392 static const struct {
393 const char *file;
394 int compr_direction;
395 int num_caps;
396 const struct wm_adsp_fw_caps *caps;
397 bool voice_trigger;
398 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
399 [WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
400 [WM_ADSP_FW_HIFI] = { .file = "hifi" },
401 [WM_ADSP_FW_TX] = { .file = "tx" },
402 [WM_ADSP_FW_TX_SPK] = { .file = "tx-spk" },
403 [WM_ADSP_FW_RX] = { .file = "rx" },
404 [WM_ADSP_FW_RX_ANC] = { .file = "rx-anc" },
405 [WM_ADSP_FW_CTRL] = {
406 .file = "ctrl",
407 .compr_direction = SND_COMPRESS_CAPTURE,
408 .num_caps = ARRAY_SIZE(ctrl_caps),
409 .caps = ctrl_caps,
410 .voice_trigger = true,
411 },
412 [WM_ADSP_FW_ASR] = { .file = "asr" },
413 [WM_ADSP_FW_TRACE] = {
414 .file = "trace",
415 .compr_direction = SND_COMPRESS_CAPTURE,
416 .num_caps = ARRAY_SIZE(trace_caps),
417 .caps = trace_caps,
418 },
419 [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
420 [WM_ADSP_FW_MISC] = { .file = "misc" },
421 };
422
423 struct wm_coeff_ctl_ops {
424 int (*xget)(struct snd_kcontrol *kcontrol,
425 struct snd_ctl_elem_value *ucontrol);
426 int (*xput)(struct snd_kcontrol *kcontrol,
427 struct snd_ctl_elem_value *ucontrol);
428 int (*xinfo)(struct snd_kcontrol *kcontrol,
429 struct snd_ctl_elem_info *uinfo);
430 };
431
432 struct wm_coeff_ctl {
433 const char *name;
434 const char *fw_name;
435 struct wm_adsp_alg_region alg_region;
436 struct wm_coeff_ctl_ops ops;
437 struct wm_adsp *dsp;
438 unsigned int enabled:1;
439 struct list_head list;
440 void *cache;
441 unsigned int offset;
442 size_t len;
443 unsigned int set:1;
444 struct snd_kcontrol *kcontrol;
445 struct soc_bytes_ext bytes_ext;
446 unsigned int flags;
447 };
448
449 #ifdef CONFIG_DEBUG_FS
450 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
451 {
452 char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
453
454 kfree(dsp->wmfw_file_name);
455 dsp->wmfw_file_name = tmp;
456 }
457
458 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
459 {
460 char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
461
462 kfree(dsp->bin_file_name);
463 dsp->bin_file_name = tmp;
464 }
465
466 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
467 {
468 kfree(dsp->wmfw_file_name);
469 kfree(dsp->bin_file_name);
470 dsp->wmfw_file_name = NULL;
471 dsp->bin_file_name = NULL;
472 }
473
474 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
475 char __user *user_buf,
476 size_t count, loff_t *ppos)
477 {
478 struct wm_adsp *dsp = file->private_data;
479 ssize_t ret;
480
481 mutex_lock(&dsp->pwr_lock);
482
483 if (!dsp->wmfw_file_name || !dsp->running)
484 ret = 0;
485 else
486 ret = simple_read_from_buffer(user_buf, count, ppos,
487 dsp->wmfw_file_name,
488 strlen(dsp->wmfw_file_name));
489
490 mutex_unlock(&dsp->pwr_lock);
491 return ret;
492 }
493
494 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
495 char __user *user_buf,
496 size_t count, loff_t *ppos)
497 {
498 struct wm_adsp *dsp = file->private_data;
499 ssize_t ret;
500
501 mutex_lock(&dsp->pwr_lock);
502
503 if (!dsp->bin_file_name || !dsp->running)
504 ret = 0;
505 else
506 ret = simple_read_from_buffer(user_buf, count, ppos,
507 dsp->bin_file_name,
508 strlen(dsp->bin_file_name));
509
510 mutex_unlock(&dsp->pwr_lock);
511 return ret;
512 }
513
514 static const struct {
515 const char *name;
516 const struct file_operations fops;
517 } wm_adsp_debugfs_fops[] = {
518 {
519 .name = "wmfw_file_name",
520 .fops = {
521 .open = simple_open,
522 .read = wm_adsp_debugfs_wmfw_read,
523 },
524 },
525 {
526 .name = "bin_file_name",
527 .fops = {
528 .open = simple_open,
529 .read = wm_adsp_debugfs_bin_read,
530 },
531 },
532 };
533
534 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
535 struct snd_soc_codec *codec)
536 {
537 struct dentry *root = NULL;
538 char *root_name;
539 int i;
540
541 if (!codec->component.debugfs_root) {
542 adsp_err(dsp, "No codec debugfs root\n");
543 goto err;
544 }
545
546 root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
547 if (!root_name)
548 goto err;
549
550 snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
551 root = debugfs_create_dir(root_name, codec->component.debugfs_root);
552 kfree(root_name);
553
554 if (!root)
555 goto err;
556
557 if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
558 goto err;
559
560 if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
561 goto err;
562
563 if (!debugfs_create_x32("fw_version", S_IRUGO, root,
564 &dsp->fw_id_version))
565 goto err;
566
567 for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
568 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
569 S_IRUGO, root, dsp,
570 &wm_adsp_debugfs_fops[i].fops))
571 goto err;
572 }
573
574 dsp->debugfs_root = root;
575 return;
576
577 err:
578 debugfs_remove_recursive(root);
579 adsp_err(dsp, "Failed to create debugfs\n");
580 }
581
582 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
583 {
584 wm_adsp_debugfs_clear(dsp);
585 debugfs_remove_recursive(dsp->debugfs_root);
586 }
587 #else
588 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
589 struct snd_soc_codec *codec)
590 {
591 }
592
593 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
594 {
595 }
596
597 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
598 const char *s)
599 {
600 }
601
602 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
603 const char *s)
604 {
605 }
606
607 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
608 {
609 }
610 #endif
611
612 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
613 struct snd_ctl_elem_value *ucontrol)
614 {
615 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
616 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
617 struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
618
619 ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
620
621 return 0;
622 }
623
624 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
625 struct snd_ctl_elem_value *ucontrol)
626 {
627 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
628 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
629 struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
630 int ret = 0;
631
632 if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
633 return 0;
634
635 if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
636 return -EINVAL;
637
638 mutex_lock(&dsp[e->shift_l].pwr_lock);
639
640 if (dsp[e->shift_l].running || dsp[e->shift_l].compr)
641 ret = -EBUSY;
642 else
643 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
644
645 mutex_unlock(&dsp[e->shift_l].pwr_lock);
646
647 return ret;
648 }
649
650 static const struct soc_enum wm_adsp_fw_enum[] = {
651 SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
652 SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
653 SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
654 SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
655 };
656
657 const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
658 SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
659 wm_adsp_fw_get, wm_adsp_fw_put),
660 SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
661 wm_adsp_fw_get, wm_adsp_fw_put),
662 SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
663 wm_adsp_fw_get, wm_adsp_fw_put),
664 SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
665 wm_adsp_fw_get, wm_adsp_fw_put),
666 };
667 EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
668
669 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
670 int type)
671 {
672 int i;
673
674 for (i = 0; i < dsp->num_mems; i++)
675 if (dsp->mem[i].type == type)
676 return &dsp->mem[i];
677
678 return NULL;
679 }
680
681 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
682 unsigned int offset)
683 {
684 if (WARN_ON(!mem))
685 return offset;
686 switch (mem->type) {
687 case WMFW_ADSP1_PM:
688 return mem->base + (offset * 3);
689 case WMFW_ADSP1_DM:
690 return mem->base + (offset * 2);
691 case WMFW_ADSP2_XM:
692 return mem->base + (offset * 2);
693 case WMFW_ADSP2_YM:
694 return mem->base + (offset * 2);
695 case WMFW_ADSP1_ZM:
696 return mem->base + (offset * 2);
697 default:
698 WARN(1, "Unknown memory region type");
699 return offset;
700 }
701 }
702
703 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
704 {
705 u16 scratch[4];
706 int ret;
707
708 ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
709 scratch, sizeof(scratch));
710 if (ret) {
711 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
712 return;
713 }
714
715 adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
716 be16_to_cpu(scratch[0]),
717 be16_to_cpu(scratch[1]),
718 be16_to_cpu(scratch[2]),
719 be16_to_cpu(scratch[3]));
720 }
721
722 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
723 {
724 return container_of(ext, struct wm_coeff_ctl, bytes_ext);
725 }
726
727 static int wm_coeff_info(struct snd_kcontrol *kctl,
728 struct snd_ctl_elem_info *uinfo)
729 {
730 struct soc_bytes_ext *bytes_ext =
731 (struct soc_bytes_ext *)kctl->private_value;
732 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
733
734 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
735 uinfo->count = ctl->len;
736 return 0;
737 }
738
739 static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
740 const void *buf, size_t len)
741 {
742 struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
743 const struct wm_adsp_region *mem;
744 struct wm_adsp *dsp = ctl->dsp;
745 void *scratch;
746 int ret;
747 unsigned int reg;
748
749 mem = wm_adsp_find_region(dsp, alg_region->type);
750 if (!mem) {
751 adsp_err(dsp, "No base for region %x\n",
752 alg_region->type);
753 return -EINVAL;
754 }
755
756 reg = ctl->alg_region.base + ctl->offset;
757 reg = wm_adsp_region_to_reg(mem, reg);
758
759 scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
760 if (!scratch)
761 return -ENOMEM;
762
763 ret = regmap_raw_write(dsp->regmap, reg, scratch,
764 len);
765 if (ret) {
766 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
767 len, reg, ret);
768 kfree(scratch);
769 return ret;
770 }
771 adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
772
773 kfree(scratch);
774
775 return 0;
776 }
777
778 static int wm_coeff_put(struct snd_kcontrol *kctl,
779 struct snd_ctl_elem_value *ucontrol)
780 {
781 struct soc_bytes_ext *bytes_ext =
782 (struct soc_bytes_ext *)kctl->private_value;
783 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
784 char *p = ucontrol->value.bytes.data;
785 int ret = 0;
786
787 mutex_lock(&ctl->dsp->pwr_lock);
788
789 memcpy(ctl->cache, p, ctl->len);
790
791 ctl->set = 1;
792 if (ctl->enabled)
793 ret = wm_coeff_write_control(ctl, p, ctl->len);
794
795 mutex_unlock(&ctl->dsp->pwr_lock);
796
797 return ret;
798 }
799
800 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
801 const unsigned int __user *bytes, unsigned int size)
802 {
803 struct soc_bytes_ext *bytes_ext =
804 (struct soc_bytes_ext *)kctl->private_value;
805 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
806 int ret = 0;
807
808 mutex_lock(&ctl->dsp->pwr_lock);
809
810 if (copy_from_user(ctl->cache, bytes, size)) {
811 ret = -EFAULT;
812 } else {
813 ctl->set = 1;
814 if (ctl->enabled)
815 ret = wm_coeff_write_control(ctl, ctl->cache, size);
816 }
817
818 mutex_unlock(&ctl->dsp->pwr_lock);
819
820 return ret;
821 }
822
823 static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
824 void *buf, size_t len)
825 {
826 struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
827 const struct wm_adsp_region *mem;
828 struct wm_adsp *dsp = ctl->dsp;
829 void *scratch;
830 int ret;
831 unsigned int reg;
832
833 mem = wm_adsp_find_region(dsp, alg_region->type);
834 if (!mem) {
835 adsp_err(dsp, "No base for region %x\n",
836 alg_region->type);
837 return -EINVAL;
838 }
839
840 reg = ctl->alg_region.base + ctl->offset;
841 reg = wm_adsp_region_to_reg(mem, reg);
842
843 scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
844 if (!scratch)
845 return -ENOMEM;
846
847 ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
848 if (ret) {
849 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
850 len, reg, ret);
851 kfree(scratch);
852 return ret;
853 }
854 adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
855
856 memcpy(buf, scratch, len);
857 kfree(scratch);
858
859 return 0;
860 }
861
862 static int wm_coeff_get(struct snd_kcontrol *kctl,
863 struct snd_ctl_elem_value *ucontrol)
864 {
865 struct soc_bytes_ext *bytes_ext =
866 (struct soc_bytes_ext *)kctl->private_value;
867 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
868 char *p = ucontrol->value.bytes.data;
869 int ret = 0;
870
871 mutex_lock(&ctl->dsp->pwr_lock);
872
873 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
874 if (ctl->enabled)
875 ret = wm_coeff_read_control(ctl, p, ctl->len);
876 else
877 ret = -EPERM;
878 } else {
879 if (!ctl->flags && ctl->enabled)
880 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
881
882 memcpy(p, ctl->cache, ctl->len);
883 }
884
885 mutex_unlock(&ctl->dsp->pwr_lock);
886
887 return ret;
888 }
889
890 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
891 unsigned int __user *bytes, unsigned int size)
892 {
893 struct soc_bytes_ext *bytes_ext =
894 (struct soc_bytes_ext *)kctl->private_value;
895 struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
896 int ret = 0;
897
898 mutex_lock(&ctl->dsp->pwr_lock);
899
900 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
901 if (ctl->enabled)
902 ret = wm_coeff_read_control(ctl, ctl->cache, size);
903 else
904 ret = -EPERM;
905 } else {
906 if (!ctl->flags && ctl->enabled)
907 ret = wm_coeff_read_control(ctl, ctl->cache, size);
908 }
909
910 if (!ret && copy_to_user(bytes, ctl->cache, size))
911 ret = -EFAULT;
912
913 mutex_unlock(&ctl->dsp->pwr_lock);
914
915 return ret;
916 }
917
918 struct wmfw_ctl_work {
919 struct wm_adsp *dsp;
920 struct wm_coeff_ctl *ctl;
921 struct work_struct work;
922 };
923
924 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
925 {
926 unsigned int out, rd, wr, vol;
927
928 if (len > ADSP_MAX_STD_CTRL_SIZE) {
929 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
930 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
931 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
932
933 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
934 } else {
935 rd = SNDRV_CTL_ELEM_ACCESS_READ;
936 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
937 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
938
939 out = 0;
940 }
941
942 if (in) {
943 if (in & WMFW_CTL_FLAG_READABLE)
944 out |= rd;
945 if (in & WMFW_CTL_FLAG_WRITEABLE)
946 out |= wr;
947 if (in & WMFW_CTL_FLAG_VOLATILE)
948 out |= vol;
949 } else {
950 out |= rd | wr | vol;
951 }
952
953 return out;
954 }
955
956 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
957 {
958 struct snd_kcontrol_new *kcontrol;
959 int ret;
960
961 if (!ctl || !ctl->name)
962 return -EINVAL;
963
964 kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
965 if (!kcontrol)
966 return -ENOMEM;
967 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
968
969 kcontrol->name = ctl->name;
970 kcontrol->info = wm_coeff_info;
971 kcontrol->get = wm_coeff_get;
972 kcontrol->put = wm_coeff_put;
973 kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
974 kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
975 kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
976
977 ctl->bytes_ext.max = ctl->len;
978 ctl->bytes_ext.get = wm_coeff_tlv_get;
979 ctl->bytes_ext.put = wm_coeff_tlv_put;
980
981 kcontrol->access = wmfw_convert_flags(ctl->flags, ctl->len);
982
983 ret = snd_soc_add_card_controls(dsp->card, kcontrol, 1);
984 if (ret < 0)
985 goto err_kcontrol;
986
987 kfree(kcontrol);
988
989 ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
990
991 return 0;
992
993 err_kcontrol:
994 kfree(kcontrol);
995 return ret;
996 }
997
998 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
999 {
1000 struct wm_coeff_ctl *ctl;
1001 int ret;
1002
1003 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1004 if (!ctl->enabled || ctl->set)
1005 continue;
1006 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1007 continue;
1008
1009 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
1010 if (ret < 0)
1011 return ret;
1012 }
1013
1014 return 0;
1015 }
1016
1017 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
1018 {
1019 struct wm_coeff_ctl *ctl;
1020 int ret;
1021
1022 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1023 if (!ctl->enabled)
1024 continue;
1025 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
1026 ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
1027 if (ret < 0)
1028 return ret;
1029 }
1030 }
1031
1032 return 0;
1033 }
1034
1035 static void wm_adsp_ctl_work(struct work_struct *work)
1036 {
1037 struct wmfw_ctl_work *ctl_work = container_of(work,
1038 struct wmfw_ctl_work,
1039 work);
1040
1041 wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
1042 kfree(ctl_work);
1043 }
1044
1045 static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
1046 {
1047 kfree(ctl->cache);
1048 kfree(ctl->name);
1049 kfree(ctl);
1050 }
1051
1052 static int wm_adsp_create_control(struct wm_adsp *dsp,
1053 const struct wm_adsp_alg_region *alg_region,
1054 unsigned int offset, unsigned int len,
1055 const char *subname, unsigned int subname_len,
1056 unsigned int flags)
1057 {
1058 struct wm_coeff_ctl *ctl;
1059 struct wmfw_ctl_work *ctl_work;
1060 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1061 char *region_name;
1062 int ret;
1063
1064 if (flags & WMFW_CTL_FLAG_SYS)
1065 return 0;
1066
1067 switch (alg_region->type) {
1068 case WMFW_ADSP1_PM:
1069 region_name = "PM";
1070 break;
1071 case WMFW_ADSP1_DM:
1072 region_name = "DM";
1073 break;
1074 case WMFW_ADSP2_XM:
1075 region_name = "XM";
1076 break;
1077 case WMFW_ADSP2_YM:
1078 region_name = "YM";
1079 break;
1080 case WMFW_ADSP1_ZM:
1081 region_name = "ZM";
1082 break;
1083 default:
1084 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
1085 return -EINVAL;
1086 }
1087
1088 switch (dsp->fw_ver) {
1089 case 0:
1090 case 1:
1091 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
1092 dsp->num, region_name, alg_region->alg);
1093 break;
1094 default:
1095 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1096 "DSP%d%c %.12s %x", dsp->num, *region_name,
1097 wm_adsp_fw_text[dsp->fw], alg_region->alg);
1098
1099 /* Truncate the subname from the start if it is too long */
1100 if (subname) {
1101 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
1102 int skip = 0;
1103
1104 if (subname_len > avail)
1105 skip = subname_len - avail;
1106
1107 snprintf(name + ret,
1108 SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1109 subname_len - skip, subname + skip);
1110 }
1111 break;
1112 }
1113
1114 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1115 if (!strcmp(ctl->name, name)) {
1116 if (!ctl->enabled)
1117 ctl->enabled = 1;
1118 return 0;
1119 }
1120 }
1121
1122 ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1123 if (!ctl)
1124 return -ENOMEM;
1125 ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1126 ctl->alg_region = *alg_region;
1127 ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1128 if (!ctl->name) {
1129 ret = -ENOMEM;
1130 goto err_ctl;
1131 }
1132 ctl->enabled = 1;
1133 ctl->set = 0;
1134 ctl->ops.xget = wm_coeff_get;
1135 ctl->ops.xput = wm_coeff_put;
1136 ctl->dsp = dsp;
1137
1138 ctl->flags = flags;
1139 ctl->offset = offset;
1140 ctl->len = len;
1141 ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1142 if (!ctl->cache) {
1143 ret = -ENOMEM;
1144 goto err_ctl_name;
1145 }
1146
1147 list_add(&ctl->list, &dsp->ctl_list);
1148
1149 ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1150 if (!ctl_work) {
1151 ret = -ENOMEM;
1152 goto err_ctl_cache;
1153 }
1154
1155 ctl_work->dsp = dsp;
1156 ctl_work->ctl = ctl;
1157 INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1158 schedule_work(&ctl_work->work);
1159
1160 return 0;
1161
1162 err_ctl_cache:
1163 kfree(ctl->cache);
1164 err_ctl_name:
1165 kfree(ctl->name);
1166 err_ctl:
1167 kfree(ctl);
1168
1169 return ret;
1170 }
1171
1172 struct wm_coeff_parsed_alg {
1173 int id;
1174 const u8 *name;
1175 int name_len;
1176 int ncoeff;
1177 };
1178
1179 struct wm_coeff_parsed_coeff {
1180 int offset;
1181 int mem_type;
1182 const u8 *name;
1183 int name_len;
1184 int ctl_type;
1185 int flags;
1186 int len;
1187 };
1188
1189 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1190 {
1191 int length;
1192
1193 switch (bytes) {
1194 case 1:
1195 length = **pos;
1196 break;
1197 case 2:
1198 length = le16_to_cpu(*((__le16 *)*pos));
1199 break;
1200 default:
1201 return 0;
1202 }
1203
1204 if (str)
1205 *str = *pos + bytes;
1206
1207 *pos += ((length + bytes) + 3) & ~0x03;
1208
1209 return length;
1210 }
1211
1212 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1213 {
1214 int val = 0;
1215
1216 switch (bytes) {
1217 case 2:
1218 val = le16_to_cpu(*((__le16 *)*pos));
1219 break;
1220 case 4:
1221 val = le32_to_cpu(*((__le32 *)*pos));
1222 break;
1223 default:
1224 break;
1225 }
1226
1227 *pos += bytes;
1228
1229 return val;
1230 }
1231
1232 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1233 struct wm_coeff_parsed_alg *blk)
1234 {
1235 const struct wmfw_adsp_alg_data *raw;
1236
1237 switch (dsp->fw_ver) {
1238 case 0:
1239 case 1:
1240 raw = (const struct wmfw_adsp_alg_data *)*data;
1241 *data = raw->data;
1242
1243 blk->id = le32_to_cpu(raw->id);
1244 blk->name = raw->name;
1245 blk->name_len = strlen(raw->name);
1246 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1247 break;
1248 default:
1249 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1250 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1251 &blk->name);
1252 wm_coeff_parse_string(sizeof(u16), data, NULL);
1253 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1254 break;
1255 }
1256
1257 adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1258 adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1259 adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1260 }
1261
1262 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1263 struct wm_coeff_parsed_coeff *blk)
1264 {
1265 const struct wmfw_adsp_coeff_data *raw;
1266 const u8 *tmp;
1267 int length;
1268
1269 switch (dsp->fw_ver) {
1270 case 0:
1271 case 1:
1272 raw = (const struct wmfw_adsp_coeff_data *)*data;
1273 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1274
1275 blk->offset = le16_to_cpu(raw->hdr.offset);
1276 blk->mem_type = le16_to_cpu(raw->hdr.type);
1277 blk->name = raw->name;
1278 blk->name_len = strlen(raw->name);
1279 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1280 blk->flags = le16_to_cpu(raw->flags);
1281 blk->len = le32_to_cpu(raw->len);
1282 break;
1283 default:
1284 tmp = *data;
1285 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1286 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1287 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1288 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1289 &blk->name);
1290 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1291 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1292 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1293 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1294 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1295
1296 *data = *data + sizeof(raw->hdr) + length;
1297 break;
1298 }
1299
1300 adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1301 adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1302 adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1303 adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1304 adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1305 adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1306 }
1307
1308 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1309 const struct wmfw_region *region)
1310 {
1311 struct wm_adsp_alg_region alg_region = {};
1312 struct wm_coeff_parsed_alg alg_blk;
1313 struct wm_coeff_parsed_coeff coeff_blk;
1314 const u8 *data = region->data;
1315 int i, ret;
1316
1317 wm_coeff_parse_alg(dsp, &data, &alg_blk);
1318 for (i = 0; i < alg_blk.ncoeff; i++) {
1319 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1320
1321 switch (coeff_blk.ctl_type) {
1322 case SNDRV_CTL_ELEM_TYPE_BYTES:
1323 break;
1324 default:
1325 adsp_err(dsp, "Unknown control type: %d\n",
1326 coeff_blk.ctl_type);
1327 return -EINVAL;
1328 }
1329
1330 alg_region.type = coeff_blk.mem_type;
1331 alg_region.alg = alg_blk.id;
1332
1333 ret = wm_adsp_create_control(dsp, &alg_region,
1334 coeff_blk.offset,
1335 coeff_blk.len,
1336 coeff_blk.name,
1337 coeff_blk.name_len,
1338 coeff_blk.flags);
1339 if (ret < 0)
1340 adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1341 coeff_blk.name_len, coeff_blk.name, ret);
1342 }
1343
1344 return 0;
1345 }
1346
1347 static int wm_adsp_load(struct wm_adsp *dsp)
1348 {
1349 LIST_HEAD(buf_list);
1350 const struct firmware *firmware;
1351 struct regmap *regmap = dsp->regmap;
1352 unsigned int pos = 0;
1353 const struct wmfw_header *header;
1354 const struct wmfw_adsp1_sizes *adsp1_sizes;
1355 const struct wmfw_adsp2_sizes *adsp2_sizes;
1356 const struct wmfw_footer *footer;
1357 const struct wmfw_region *region;
1358 const struct wm_adsp_region *mem;
1359 const char *region_name;
1360 char *file, *text;
1361 struct wm_adsp_buf *buf;
1362 unsigned int reg;
1363 int regions = 0;
1364 int ret, offset, type, sizes;
1365
1366 file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1367 if (file == NULL)
1368 return -ENOMEM;
1369
1370 snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
1371 wm_adsp_fw[dsp->fw].file);
1372 file[PAGE_SIZE - 1] = '\0';
1373
1374 ret = request_firmware(&firmware, file, dsp->dev);
1375 if (ret != 0) {
1376 adsp_err(dsp, "Failed to request '%s'\n", file);
1377 goto out;
1378 }
1379 ret = -EINVAL;
1380
1381 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1382 if (pos >= firmware->size) {
1383 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1384 file, firmware->size);
1385 goto out_fw;
1386 }
1387
1388 header = (void *)&firmware->data[0];
1389
1390 if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1391 adsp_err(dsp, "%s: invalid magic\n", file);
1392 goto out_fw;
1393 }
1394
1395 switch (header->ver) {
1396 case 0:
1397 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1398 file, header->ver);
1399 break;
1400 case 1:
1401 case 2:
1402 break;
1403 default:
1404 adsp_err(dsp, "%s: unknown file format %d\n",
1405 file, header->ver);
1406 goto out_fw;
1407 }
1408
1409 adsp_info(dsp, "Firmware version: %d\n", header->ver);
1410 dsp->fw_ver = header->ver;
1411
1412 if (header->core != dsp->type) {
1413 adsp_err(dsp, "%s: invalid core %d != %d\n",
1414 file, header->core, dsp->type);
1415 goto out_fw;
1416 }
1417
1418 switch (dsp->type) {
1419 case WMFW_ADSP1:
1420 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1421 adsp1_sizes = (void *)&(header[1]);
1422 footer = (void *)&(adsp1_sizes[1]);
1423 sizes = sizeof(*adsp1_sizes);
1424
1425 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1426 file, le32_to_cpu(adsp1_sizes->dm),
1427 le32_to_cpu(adsp1_sizes->pm),
1428 le32_to_cpu(adsp1_sizes->zm));
1429 break;
1430
1431 case WMFW_ADSP2:
1432 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1433 adsp2_sizes = (void *)&(header[1]);
1434 footer = (void *)&(adsp2_sizes[1]);
1435 sizes = sizeof(*adsp2_sizes);
1436
1437 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1438 file, le32_to_cpu(adsp2_sizes->xm),
1439 le32_to_cpu(adsp2_sizes->ym),
1440 le32_to_cpu(adsp2_sizes->pm),
1441 le32_to_cpu(adsp2_sizes->zm));
1442 break;
1443
1444 default:
1445 WARN(1, "Unknown DSP type");
1446 goto out_fw;
1447 }
1448
1449 if (le32_to_cpu(header->len) != sizeof(*header) +
1450 sizes + sizeof(*footer)) {
1451 adsp_err(dsp, "%s: unexpected header length %d\n",
1452 file, le32_to_cpu(header->len));
1453 goto out_fw;
1454 }
1455
1456 adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1457 le64_to_cpu(footer->timestamp));
1458
1459 while (pos < firmware->size &&
1460 pos - firmware->size > sizeof(*region)) {
1461 region = (void *)&(firmware->data[pos]);
1462 region_name = "Unknown";
1463 reg = 0;
1464 text = NULL;
1465 offset = le32_to_cpu(region->offset) & 0xffffff;
1466 type = be32_to_cpu(region->type) & 0xff;
1467 mem = wm_adsp_find_region(dsp, type);
1468
1469 switch (type) {
1470 case WMFW_NAME_TEXT:
1471 region_name = "Firmware name";
1472 text = kzalloc(le32_to_cpu(region->len) + 1,
1473 GFP_KERNEL);
1474 break;
1475 case WMFW_ALGORITHM_DATA:
1476 region_name = "Algorithm";
1477 ret = wm_adsp_parse_coeff(dsp, region);
1478 if (ret != 0)
1479 goto out_fw;
1480 break;
1481 case WMFW_INFO_TEXT:
1482 region_name = "Information";
1483 text = kzalloc(le32_to_cpu(region->len) + 1,
1484 GFP_KERNEL);
1485 break;
1486 case WMFW_ABSOLUTE:
1487 region_name = "Absolute";
1488 reg = offset;
1489 break;
1490 case WMFW_ADSP1_PM:
1491 region_name = "PM";
1492 reg = wm_adsp_region_to_reg(mem, offset);
1493 break;
1494 case WMFW_ADSP1_DM:
1495 region_name = "DM";
1496 reg = wm_adsp_region_to_reg(mem, offset);
1497 break;
1498 case WMFW_ADSP2_XM:
1499 region_name = "XM";
1500 reg = wm_adsp_region_to_reg(mem, offset);
1501 break;
1502 case WMFW_ADSP2_YM:
1503 region_name = "YM";
1504 reg = wm_adsp_region_to_reg(mem, offset);
1505 break;
1506 case WMFW_ADSP1_ZM:
1507 region_name = "ZM";
1508 reg = wm_adsp_region_to_reg(mem, offset);
1509 break;
1510 default:
1511 adsp_warn(dsp,
1512 "%s.%d: Unknown region type %x at %d(%x)\n",
1513 file, regions, type, pos, pos);
1514 break;
1515 }
1516
1517 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1518 regions, le32_to_cpu(region->len), offset,
1519 region_name);
1520
1521 if (text) {
1522 memcpy(text, region->data, le32_to_cpu(region->len));
1523 adsp_info(dsp, "%s: %s\n", file, text);
1524 kfree(text);
1525 }
1526
1527 if (reg) {
1528 buf = wm_adsp_buf_alloc(region->data,
1529 le32_to_cpu(region->len),
1530 &buf_list);
1531 if (!buf) {
1532 adsp_err(dsp, "Out of memory\n");
1533 ret = -ENOMEM;
1534 goto out_fw;
1535 }
1536
1537 ret = regmap_raw_write_async(regmap, reg, buf->buf,
1538 le32_to_cpu(region->len));
1539 if (ret != 0) {
1540 adsp_err(dsp,
1541 "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1542 file, regions,
1543 le32_to_cpu(region->len), offset,
1544 region_name, ret);
1545 goto out_fw;
1546 }
1547 }
1548
1549 pos += le32_to_cpu(region->len) + sizeof(*region);
1550 regions++;
1551 }
1552
1553 ret = regmap_async_complete(regmap);
1554 if (ret != 0) {
1555 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1556 goto out_fw;
1557 }
1558
1559 if (pos > firmware->size)
1560 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1561 file, regions, pos - firmware->size);
1562
1563 wm_adsp_debugfs_save_wmfwname(dsp, file);
1564
1565 out_fw:
1566 regmap_async_complete(regmap);
1567 wm_adsp_buf_free(&buf_list);
1568 release_firmware(firmware);
1569 out:
1570 kfree(file);
1571
1572 return ret;
1573 }
1574
1575 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1576 const struct wm_adsp_alg_region *alg_region)
1577 {
1578 struct wm_coeff_ctl *ctl;
1579
1580 list_for_each_entry(ctl, &dsp->ctl_list, list) {
1581 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1582 alg_region->alg == ctl->alg_region.alg &&
1583 alg_region->type == ctl->alg_region.type) {
1584 ctl->alg_region.base = alg_region->base;
1585 }
1586 }
1587 }
1588
1589 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1590 unsigned int pos, unsigned int len)
1591 {
1592 void *alg;
1593 int ret;
1594 __be32 val;
1595
1596 if (n_algs == 0) {
1597 adsp_err(dsp, "No algorithms\n");
1598 return ERR_PTR(-EINVAL);
1599 }
1600
1601 if (n_algs > 1024) {
1602 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1603 return ERR_PTR(-EINVAL);
1604 }
1605
1606 /* Read the terminator first to validate the length */
1607 ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1608 if (ret != 0) {
1609 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1610 ret);
1611 return ERR_PTR(ret);
1612 }
1613
1614 if (be32_to_cpu(val) != 0xbedead)
1615 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1616 pos + len, be32_to_cpu(val));
1617
1618 alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1619 if (!alg)
1620 return ERR_PTR(-ENOMEM);
1621
1622 ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1623 if (ret != 0) {
1624 adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
1625 kfree(alg);
1626 return ERR_PTR(ret);
1627 }
1628
1629 return alg;
1630 }
1631
1632 static struct wm_adsp_alg_region *
1633 wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1634 {
1635 struct wm_adsp_alg_region *alg_region;
1636
1637 list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1638 if (id == alg_region->alg && type == alg_region->type)
1639 return alg_region;
1640 }
1641
1642 return NULL;
1643 }
1644
1645 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1646 int type, __be32 id,
1647 __be32 base)
1648 {
1649 struct wm_adsp_alg_region *alg_region;
1650
1651 alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1652 if (!alg_region)
1653 return ERR_PTR(-ENOMEM);
1654
1655 alg_region->type = type;
1656 alg_region->alg = be32_to_cpu(id);
1657 alg_region->base = be32_to_cpu(base);
1658
1659 list_add_tail(&alg_region->list, &dsp->alg_regions);
1660
1661 if (dsp->fw_ver > 0)
1662 wm_adsp_ctl_fixup_base(dsp, alg_region);
1663
1664 return alg_region;
1665 }
1666
1667 static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
1668 {
1669 struct wm_adsp_alg_region *alg_region;
1670
1671 while (!list_empty(&dsp->alg_regions)) {
1672 alg_region = list_first_entry(&dsp->alg_regions,
1673 struct wm_adsp_alg_region,
1674 list);
1675 list_del(&alg_region->list);
1676 kfree(alg_region);
1677 }
1678 }
1679
1680 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1681 {
1682 struct wmfw_adsp1_id_hdr adsp1_id;
1683 struct wmfw_adsp1_alg_hdr *adsp1_alg;
1684 struct wm_adsp_alg_region *alg_region;
1685 const struct wm_adsp_region *mem;
1686 unsigned int pos, len;
1687 size_t n_algs;
1688 int i, ret;
1689
1690 mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1691 if (WARN_ON(!mem))
1692 return -EINVAL;
1693
1694 ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1695 sizeof(adsp1_id));
1696 if (ret != 0) {
1697 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1698 ret);
1699 return ret;
1700 }
1701
1702 n_algs = be32_to_cpu(adsp1_id.n_algs);
1703 dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1704 adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1705 dsp->fw_id,
1706 (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1707 (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1708 be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1709 n_algs);
1710
1711 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1712 adsp1_id.fw.id, adsp1_id.zm);
1713 if (IS_ERR(alg_region))
1714 return PTR_ERR(alg_region);
1715
1716 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1717 adsp1_id.fw.id, adsp1_id.dm);
1718 if (IS_ERR(alg_region))
1719 return PTR_ERR(alg_region);
1720
1721 pos = sizeof(adsp1_id) / 2;
1722 len = (sizeof(*adsp1_alg) * n_algs) / 2;
1723
1724 adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1725 if (IS_ERR(adsp1_alg))
1726 return PTR_ERR(adsp1_alg);
1727
1728 for (i = 0; i < n_algs; i++) {
1729 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1730 i, be32_to_cpu(adsp1_alg[i].alg.id),
1731 (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1732 (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1733 be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1734 be32_to_cpu(adsp1_alg[i].dm),
1735 be32_to_cpu(adsp1_alg[i].zm));
1736
1737 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1738 adsp1_alg[i].alg.id,
1739 adsp1_alg[i].dm);
1740 if (IS_ERR(alg_region)) {
1741 ret = PTR_ERR(alg_region);
1742 goto out;
1743 }
1744 if (dsp->fw_ver == 0) {
1745 if (i + 1 < n_algs) {
1746 len = be32_to_cpu(adsp1_alg[i + 1].dm);
1747 len -= be32_to_cpu(adsp1_alg[i].dm);
1748 len *= 4;
1749 wm_adsp_create_control(dsp, alg_region, 0,
1750 len, NULL, 0, 0);
1751 } else {
1752 adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1753 be32_to_cpu(adsp1_alg[i].alg.id));
1754 }
1755 }
1756
1757 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1758 adsp1_alg[i].alg.id,
1759 adsp1_alg[i].zm);
1760 if (IS_ERR(alg_region)) {
1761 ret = PTR_ERR(alg_region);
1762 goto out;
1763 }
1764 if (dsp->fw_ver == 0) {
1765 if (i + 1 < n_algs) {
1766 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1767 len -= be32_to_cpu(adsp1_alg[i].zm);
1768 len *= 4;
1769 wm_adsp_create_control(dsp, alg_region, 0,
1770 len, NULL, 0, 0);
1771 } else {
1772 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1773 be32_to_cpu(adsp1_alg[i].alg.id));
1774 }
1775 }
1776 }
1777
1778 out:
1779 kfree(adsp1_alg);
1780 return ret;
1781 }
1782
1783 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1784 {
1785 struct wmfw_adsp2_id_hdr adsp2_id;
1786 struct wmfw_adsp2_alg_hdr *adsp2_alg;
1787 struct wm_adsp_alg_region *alg_region;
1788 const struct wm_adsp_region *mem;
1789 unsigned int pos, len;
1790 size_t n_algs;
1791 int i, ret;
1792
1793 mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1794 if (WARN_ON(!mem))
1795 return -EINVAL;
1796
1797 ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1798 sizeof(adsp2_id));
1799 if (ret != 0) {
1800 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1801 ret);
1802 return ret;
1803 }
1804
1805 n_algs = be32_to_cpu(adsp2_id.n_algs);
1806 dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
1807 dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
1808 adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1809 dsp->fw_id,
1810 (dsp->fw_id_version & 0xff0000) >> 16,
1811 (dsp->fw_id_version & 0xff00) >> 8,
1812 dsp->fw_id_version & 0xff,
1813 n_algs);
1814
1815 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1816 adsp2_id.fw.id, adsp2_id.xm);
1817 if (IS_ERR(alg_region))
1818 return PTR_ERR(alg_region);
1819
1820 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1821 adsp2_id.fw.id, adsp2_id.ym);
1822 if (IS_ERR(alg_region))
1823 return PTR_ERR(alg_region);
1824
1825 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1826 adsp2_id.fw.id, adsp2_id.zm);
1827 if (IS_ERR(alg_region))
1828 return PTR_ERR(alg_region);
1829
1830 pos = sizeof(adsp2_id) / 2;
1831 len = (sizeof(*adsp2_alg) * n_algs) / 2;
1832
1833 adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1834 if (IS_ERR(adsp2_alg))
1835 return PTR_ERR(adsp2_alg);
1836
1837 for (i = 0; i < n_algs; i++) {
1838 adsp_info(dsp,
1839 "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1840 i, be32_to_cpu(adsp2_alg[i].alg.id),
1841 (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1842 (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1843 be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1844 be32_to_cpu(adsp2_alg[i].xm),
1845 be32_to_cpu(adsp2_alg[i].ym),
1846 be32_to_cpu(adsp2_alg[i].zm));
1847
1848 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1849 adsp2_alg[i].alg.id,
1850 adsp2_alg[i].xm);
1851 if (IS_ERR(alg_region)) {
1852 ret = PTR_ERR(alg_region);
1853 goto out;
1854 }
1855 if (dsp->fw_ver == 0) {
1856 if (i + 1 < n_algs) {
1857 len = be32_to_cpu(adsp2_alg[i + 1].xm);
1858 len -= be32_to_cpu(adsp2_alg[i].xm);
1859 len *= 4;
1860 wm_adsp_create_control(dsp, alg_region, 0,
1861 len, NULL, 0, 0);
1862 } else {
1863 adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1864 be32_to_cpu(adsp2_alg[i].alg.id));
1865 }
1866 }
1867
1868 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1869 adsp2_alg[i].alg.id,
1870 adsp2_alg[i].ym);
1871 if (IS_ERR(alg_region)) {
1872 ret = PTR_ERR(alg_region);
1873 goto out;
1874 }
1875 if (dsp->fw_ver == 0) {
1876 if (i + 1 < n_algs) {
1877 len = be32_to_cpu(adsp2_alg[i + 1].ym);
1878 len -= be32_to_cpu(adsp2_alg[i].ym);
1879 len *= 4;
1880 wm_adsp_create_control(dsp, alg_region, 0,
1881 len, NULL, 0, 0);
1882 } else {
1883 adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1884 be32_to_cpu(adsp2_alg[i].alg.id));
1885 }
1886 }
1887
1888 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1889 adsp2_alg[i].alg.id,
1890 adsp2_alg[i].zm);
1891 if (IS_ERR(alg_region)) {
1892 ret = PTR_ERR(alg_region);
1893 goto out;
1894 }
1895 if (dsp->fw_ver == 0) {
1896 if (i + 1 < n_algs) {
1897 len = be32_to_cpu(adsp2_alg[i + 1].zm);
1898 len -= be32_to_cpu(adsp2_alg[i].zm);
1899 len *= 4;
1900 wm_adsp_create_control(dsp, alg_region, 0,
1901 len, NULL, 0, 0);
1902 } else {
1903 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1904 be32_to_cpu(adsp2_alg[i].alg.id));
1905 }
1906 }
1907 }
1908
1909 out:
1910 kfree(adsp2_alg);
1911 return ret;
1912 }
1913
1914 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1915 {
1916 LIST_HEAD(buf_list);
1917 struct regmap *regmap = dsp->regmap;
1918 struct wmfw_coeff_hdr *hdr;
1919 struct wmfw_coeff_item *blk;
1920 const struct firmware *firmware;
1921 const struct wm_adsp_region *mem;
1922 struct wm_adsp_alg_region *alg_region;
1923 const char *region_name;
1924 int ret, pos, blocks, type, offset, reg;
1925 char *file;
1926 struct wm_adsp_buf *buf;
1927
1928 file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1929 if (file == NULL)
1930 return -ENOMEM;
1931
1932 snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1933 wm_adsp_fw[dsp->fw].file);
1934 file[PAGE_SIZE - 1] = '\0';
1935
1936 ret = request_firmware(&firmware, file, dsp->dev);
1937 if (ret != 0) {
1938 adsp_warn(dsp, "Failed to request '%s'\n", file);
1939 ret = 0;
1940 goto out;
1941 }
1942 ret = -EINVAL;
1943
1944 if (sizeof(*hdr) >= firmware->size) {
1945 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1946 file, firmware->size);
1947 goto out_fw;
1948 }
1949
1950 hdr = (void *)&firmware->data[0];
1951 if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1952 adsp_err(dsp, "%s: invalid magic\n", file);
1953 goto out_fw;
1954 }
1955
1956 switch (be32_to_cpu(hdr->rev) & 0xff) {
1957 case 1:
1958 break;
1959 default:
1960 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1961 file, be32_to_cpu(hdr->rev) & 0xff);
1962 ret = -EINVAL;
1963 goto out_fw;
1964 }
1965
1966 adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1967 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
1968 (le32_to_cpu(hdr->ver) >> 8) & 0xff,
1969 le32_to_cpu(hdr->ver) & 0xff);
1970
1971 pos = le32_to_cpu(hdr->len);
1972
1973 blocks = 0;
1974 while (pos < firmware->size &&
1975 pos - firmware->size > sizeof(*blk)) {
1976 blk = (void *)(&firmware->data[pos]);
1977
1978 type = le16_to_cpu(blk->type);
1979 offset = le16_to_cpu(blk->offset);
1980
1981 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1982 file, blocks, le32_to_cpu(blk->id),
1983 (le32_to_cpu(blk->ver) >> 16) & 0xff,
1984 (le32_to_cpu(blk->ver) >> 8) & 0xff,
1985 le32_to_cpu(blk->ver) & 0xff);
1986 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1987 file, blocks, le32_to_cpu(blk->len), offset, type);
1988
1989 reg = 0;
1990 region_name = "Unknown";
1991 switch (type) {
1992 case (WMFW_NAME_TEXT << 8):
1993 case (WMFW_INFO_TEXT << 8):
1994 break;
1995 case (WMFW_ABSOLUTE << 8):
1996 /*
1997 * Old files may use this for global
1998 * coefficients.
1999 */
2000 if (le32_to_cpu(blk->id) == dsp->fw_id &&
2001 offset == 0) {
2002 region_name = "global coefficients";
2003 mem = wm_adsp_find_region(dsp, type);
2004 if (!mem) {
2005 adsp_err(dsp, "No ZM\n");
2006 break;
2007 }
2008 reg = wm_adsp_region_to_reg(mem, 0);
2009
2010 } else {
2011 region_name = "register";
2012 reg = offset;
2013 }
2014 break;
2015
2016 case WMFW_ADSP1_DM:
2017 case WMFW_ADSP1_ZM:
2018 case WMFW_ADSP2_XM:
2019 case WMFW_ADSP2_YM:
2020 adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
2021 file, blocks, le32_to_cpu(blk->len),
2022 type, le32_to_cpu(blk->id));
2023
2024 mem = wm_adsp_find_region(dsp, type);
2025 if (!mem) {
2026 adsp_err(dsp, "No base for region %x\n", type);
2027 break;
2028 }
2029
2030 alg_region = wm_adsp_find_alg_region(dsp, type,
2031 le32_to_cpu(blk->id));
2032 if (alg_region) {
2033 reg = alg_region->base;
2034 reg = wm_adsp_region_to_reg(mem, reg);
2035 reg += offset;
2036 } else {
2037 adsp_err(dsp, "No %x for algorithm %x\n",
2038 type, le32_to_cpu(blk->id));
2039 }
2040 break;
2041
2042 default:
2043 adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
2044 file, blocks, type, pos);
2045 break;
2046 }
2047
2048 if (reg) {
2049 buf = wm_adsp_buf_alloc(blk->data,
2050 le32_to_cpu(blk->len),
2051 &buf_list);
2052 if (!buf) {
2053 adsp_err(dsp, "Out of memory\n");
2054 ret = -ENOMEM;
2055 goto out_fw;
2056 }
2057
2058 adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
2059 file, blocks, le32_to_cpu(blk->len),
2060 reg);
2061 ret = regmap_raw_write_async(regmap, reg, buf->buf,
2062 le32_to_cpu(blk->len));
2063 if (ret != 0) {
2064 adsp_err(dsp,
2065 "%s.%d: Failed to write to %x in %s: %d\n",
2066 file, blocks, reg, region_name, ret);
2067 }
2068 }
2069
2070 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
2071 blocks++;
2072 }
2073
2074 ret = regmap_async_complete(regmap);
2075 if (ret != 0)
2076 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
2077
2078 if (pos > firmware->size)
2079 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2080 file, blocks, pos - firmware->size);
2081
2082 wm_adsp_debugfs_save_binname(dsp, file);
2083
2084 out_fw:
2085 regmap_async_complete(regmap);
2086 release_firmware(firmware);
2087 wm_adsp_buf_free(&buf_list);
2088 out:
2089 kfree(file);
2090 return ret;
2091 }
2092
2093 int wm_adsp1_init(struct wm_adsp *dsp)
2094 {
2095 INIT_LIST_HEAD(&dsp->alg_regions);
2096
2097 mutex_init(&dsp->pwr_lock);
2098
2099 return 0;
2100 }
2101 EXPORT_SYMBOL_GPL(wm_adsp1_init);
2102
2103 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
2104 struct snd_kcontrol *kcontrol,
2105 int event)
2106 {
2107 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2108 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2109 struct wm_adsp *dsp = &dsps[w->shift];
2110 struct wm_coeff_ctl *ctl;
2111 int ret;
2112 unsigned int val;
2113
2114 dsp->card = codec->component.card;
2115
2116 mutex_lock(&dsp->pwr_lock);
2117
2118 switch (event) {
2119 case SND_SOC_DAPM_POST_PMU:
2120 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2121 ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2122
2123 /*
2124 * For simplicity set the DSP clock rate to be the
2125 * SYSCLK rate rather than making it configurable.
2126 */
2127 if (dsp->sysclk_reg) {
2128 ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2129 if (ret != 0) {
2130 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2131 ret);
2132 goto err_mutex;
2133 }
2134
2135 val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2136
2137 ret = regmap_update_bits(dsp->regmap,
2138 dsp->base + ADSP1_CONTROL_31,
2139 ADSP1_CLK_SEL_MASK, val);
2140 if (ret != 0) {
2141 adsp_err(dsp, "Failed to set clock rate: %d\n",
2142 ret);
2143 goto err_mutex;
2144 }
2145 }
2146
2147 ret = wm_adsp_load(dsp);
2148 if (ret != 0)
2149 goto err_ena;
2150
2151 ret = wm_adsp1_setup_algs(dsp);
2152 if (ret != 0)
2153 goto err_ena;
2154
2155 ret = wm_adsp_load_coeff(dsp);
2156 if (ret != 0)
2157 goto err_ena;
2158
2159 /* Initialize caches for enabled and unset controls */
2160 ret = wm_coeff_init_control_caches(dsp);
2161 if (ret != 0)
2162 goto err_ena;
2163
2164 /* Sync set controls */
2165 ret = wm_coeff_sync_controls(dsp);
2166 if (ret != 0)
2167 goto err_ena;
2168
2169 /* Start the core running */
2170 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2171 ADSP1_CORE_ENA | ADSP1_START,
2172 ADSP1_CORE_ENA | ADSP1_START);
2173 break;
2174
2175 case SND_SOC_DAPM_PRE_PMD:
2176 /* Halt the core */
2177 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2178 ADSP1_CORE_ENA | ADSP1_START, 0);
2179
2180 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2181 ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2182
2183 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2184 ADSP1_SYS_ENA, 0);
2185
2186 list_for_each_entry(ctl, &dsp->ctl_list, list)
2187 ctl->enabled = 0;
2188
2189
2190 wm_adsp_free_alg_regions(dsp);
2191 break;
2192
2193 default:
2194 break;
2195 }
2196
2197 mutex_unlock(&dsp->pwr_lock);
2198
2199 return 0;
2200
2201 err_ena:
2202 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2203 ADSP1_SYS_ENA, 0);
2204 err_mutex:
2205 mutex_unlock(&dsp->pwr_lock);
2206
2207 return ret;
2208 }
2209 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2210
2211 static int wm_adsp2_ena(struct wm_adsp *dsp)
2212 {
2213 unsigned int val;
2214 int ret, count;
2215
2216 ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2217 ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2218 if (ret != 0)
2219 return ret;
2220
2221 /* Wait for the RAM to start, should be near instantaneous */
2222 for (count = 0; count < 10; ++count) {
2223 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2224 if (ret != 0)
2225 return ret;
2226
2227 if (val & ADSP2_RAM_RDY)
2228 break;
2229
2230 msleep(1);
2231 }
2232
2233 if (!(val & ADSP2_RAM_RDY)) {
2234 adsp_err(dsp, "Failed to start DSP RAM\n");
2235 return -EBUSY;
2236 }
2237
2238 adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2239
2240 return 0;
2241 }
2242
2243 static void wm_adsp2_boot_work(struct work_struct *work)
2244 {
2245 struct wm_adsp *dsp = container_of(work,
2246 struct wm_adsp,
2247 boot_work);
2248 int ret;
2249
2250 mutex_lock(&dsp->pwr_lock);
2251
2252 ret = wm_adsp2_ena(dsp);
2253 if (ret != 0)
2254 goto err_mutex;
2255
2256 ret = wm_adsp_load(dsp);
2257 if (ret != 0)
2258 goto err_ena;
2259
2260 ret = wm_adsp2_setup_algs(dsp);
2261 if (ret != 0)
2262 goto err_ena;
2263
2264 ret = wm_adsp_load_coeff(dsp);
2265 if (ret != 0)
2266 goto err_ena;
2267
2268 /* Initialize caches for enabled and unset controls */
2269 ret = wm_coeff_init_control_caches(dsp);
2270 if (ret != 0)
2271 goto err_ena;
2272
2273 /* Sync set controls */
2274 ret = wm_coeff_sync_controls(dsp);
2275 if (ret != 0)
2276 goto err_ena;
2277
2278 dsp->running = true;
2279
2280 mutex_unlock(&dsp->pwr_lock);
2281
2282 return;
2283
2284 err_ena:
2285 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2286 ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2287 err_mutex:
2288 mutex_unlock(&dsp->pwr_lock);
2289 }
2290
2291 static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2292 {
2293 int ret;
2294
2295 ret = regmap_update_bits_async(dsp->regmap,
2296 dsp->base + ADSP2_CLOCKING,
2297 ADSP2_CLK_SEL_MASK,
2298 freq << ADSP2_CLK_SEL_SHIFT);
2299 if (ret != 0)
2300 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2301 }
2302
2303 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2304 struct snd_kcontrol *kcontrol, int event,
2305 unsigned int freq)
2306 {
2307 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2308 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2309 struct wm_adsp *dsp = &dsps[w->shift];
2310
2311 dsp->card = codec->component.card;
2312
2313 switch (event) {
2314 case SND_SOC_DAPM_PRE_PMU:
2315 wm_adsp2_set_dspclk(dsp, freq);
2316 queue_work(system_unbound_wq, &dsp->boot_work);
2317 break;
2318 default:
2319 break;
2320 }
2321
2322 return 0;
2323 }
2324 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2325
2326 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2327 struct snd_kcontrol *kcontrol, int event)
2328 {
2329 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2330 struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2331 struct wm_adsp *dsp = &dsps[w->shift];
2332 struct wm_coeff_ctl *ctl;
2333 int ret;
2334
2335 switch (event) {
2336 case SND_SOC_DAPM_POST_PMU:
2337 flush_work(&dsp->boot_work);
2338
2339 if (!dsp->running)
2340 return -EIO;
2341
2342 ret = regmap_update_bits(dsp->regmap,
2343 dsp->base + ADSP2_CONTROL,
2344 ADSP2_CORE_ENA | ADSP2_START,
2345 ADSP2_CORE_ENA | ADSP2_START);
2346 if (ret != 0)
2347 goto err;
2348
2349 mutex_lock(&dsp->pwr_lock);
2350
2351 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2352 ret = wm_adsp_buffer_init(dsp);
2353
2354 mutex_unlock(&dsp->pwr_lock);
2355
2356 break;
2357
2358 case SND_SOC_DAPM_PRE_PMD:
2359 /* Log firmware state, it can be useful for analysis */
2360 wm_adsp2_show_fw_status(dsp);
2361
2362 mutex_lock(&dsp->pwr_lock);
2363
2364 wm_adsp_debugfs_clear(dsp);
2365
2366 dsp->fw_id = 0;
2367 dsp->fw_id_version = 0;
2368 dsp->running = false;
2369
2370 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2371 ADSP2_CORE_ENA | ADSP2_START, 0);
2372
2373 /* Make sure DMAs are quiesced */
2374 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2375 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2376 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2377
2378 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2379 ADSP2_SYS_ENA, 0);
2380
2381 list_for_each_entry(ctl, &dsp->ctl_list, list)
2382 ctl->enabled = 0;
2383
2384 wm_adsp_free_alg_regions(dsp);
2385
2386 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2387 wm_adsp_buffer_free(dsp);
2388
2389 mutex_unlock(&dsp->pwr_lock);
2390
2391 adsp_dbg(dsp, "Shutdown complete\n");
2392 break;
2393
2394 default:
2395 break;
2396 }
2397
2398 return 0;
2399 err:
2400 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2401 ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2402 return ret;
2403 }
2404 EXPORT_SYMBOL_GPL(wm_adsp2_event);
2405
2406 int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2407 {
2408 wm_adsp2_init_debugfs(dsp, codec);
2409
2410 return snd_soc_add_codec_controls(codec,
2411 &wm_adsp_fw_controls[dsp->num - 1],
2412 1);
2413 }
2414 EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2415
2416 int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2417 {
2418 wm_adsp2_cleanup_debugfs(dsp);
2419
2420 return 0;
2421 }
2422 EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2423
2424 int wm_adsp2_init(struct wm_adsp *dsp)
2425 {
2426 int ret;
2427
2428 /*
2429 * Disable the DSP memory by default when in reset for a small
2430 * power saving.
2431 */
2432 ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2433 ADSP2_MEM_ENA, 0);
2434 if (ret != 0) {
2435 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2436 return ret;
2437 }
2438
2439 INIT_LIST_HEAD(&dsp->alg_regions);
2440 INIT_LIST_HEAD(&dsp->ctl_list);
2441 INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2442
2443 mutex_init(&dsp->pwr_lock);
2444
2445 return 0;
2446 }
2447 EXPORT_SYMBOL_GPL(wm_adsp2_init);
2448
2449 void wm_adsp2_remove(struct wm_adsp *dsp)
2450 {
2451 struct wm_coeff_ctl *ctl;
2452
2453 while (!list_empty(&dsp->ctl_list)) {
2454 ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
2455 list);
2456 list_del(&ctl->list);
2457 wm_adsp_free_ctl_blk(ctl);
2458 }
2459 }
2460 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
2461
2462 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2463 {
2464 return compr->buf != NULL;
2465 }
2466
2467 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2468 {
2469 /*
2470 * Note this will be more complex once each DSP can support multiple
2471 * streams
2472 */
2473 if (!compr->dsp->buffer)
2474 return -EINVAL;
2475
2476 compr->buf = compr->dsp->buffer;
2477 compr->buf->compr = compr;
2478
2479 return 0;
2480 }
2481
2482 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
2483 {
2484 if (!compr)
2485 return;
2486
2487 /* Wake the poll so it can see buffer is no longer attached */
2488 if (compr->stream)
2489 snd_compr_fragment_elapsed(compr->stream);
2490
2491 if (wm_adsp_compr_attached(compr)) {
2492 compr->buf->compr = NULL;
2493 compr->buf = NULL;
2494 }
2495 }
2496
2497 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2498 {
2499 struct wm_adsp_compr *compr;
2500 int ret = 0;
2501
2502 mutex_lock(&dsp->pwr_lock);
2503
2504 if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2505 adsp_err(dsp, "Firmware does not support compressed API\n");
2506 ret = -ENXIO;
2507 goto out;
2508 }
2509
2510 if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2511 adsp_err(dsp, "Firmware does not support stream direction\n");
2512 ret = -EINVAL;
2513 goto out;
2514 }
2515
2516 if (dsp->compr) {
2517 /* It is expect this limitation will be removed in future */
2518 adsp_err(dsp, "Only a single stream supported per DSP\n");
2519 ret = -EBUSY;
2520 goto out;
2521 }
2522
2523 compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2524 if (!compr) {
2525 ret = -ENOMEM;
2526 goto out;
2527 }
2528
2529 compr->dsp = dsp;
2530 compr->stream = stream;
2531
2532 dsp->compr = compr;
2533
2534 stream->runtime->private_data = compr;
2535
2536 out:
2537 mutex_unlock(&dsp->pwr_lock);
2538
2539 return ret;
2540 }
2541 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2542
2543 int wm_adsp_compr_free(struct snd_compr_stream *stream)
2544 {
2545 struct wm_adsp_compr *compr = stream->runtime->private_data;
2546 struct wm_adsp *dsp = compr->dsp;
2547
2548 mutex_lock(&dsp->pwr_lock);
2549
2550 wm_adsp_compr_detach(compr);
2551 dsp->compr = NULL;
2552
2553 kfree(compr->raw_buf);
2554 kfree(compr);
2555
2556 mutex_unlock(&dsp->pwr_lock);
2557
2558 return 0;
2559 }
2560 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2561
2562 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2563 struct snd_compr_params *params)
2564 {
2565 struct wm_adsp_compr *compr = stream->runtime->private_data;
2566 struct wm_adsp *dsp = compr->dsp;
2567 const struct wm_adsp_fw_caps *caps;
2568 const struct snd_codec_desc *desc;
2569 int i, j;
2570
2571 if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2572 params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2573 params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2574 params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2575 params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2576 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2577 params->buffer.fragment_size,
2578 params->buffer.fragments);
2579
2580 return -EINVAL;
2581 }
2582
2583 for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2584 caps = &wm_adsp_fw[dsp->fw].caps[i];
2585 desc = &caps->desc;
2586
2587 if (caps->id != params->codec.id)
2588 continue;
2589
2590 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2591 if (desc->max_ch < params->codec.ch_out)
2592 continue;
2593 } else {
2594 if (desc->max_ch < params->codec.ch_in)
2595 continue;
2596 }
2597
2598 if (!(desc->formats & (1 << params->codec.format)))
2599 continue;
2600
2601 for (j = 0; j < desc->num_sample_rates; ++j)
2602 if (desc->sample_rates[j] == params->codec.sample_rate)
2603 return 0;
2604 }
2605
2606 adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2607 params->codec.id, params->codec.ch_in, params->codec.ch_out,
2608 params->codec.sample_rate, params->codec.format);
2609 return -EINVAL;
2610 }
2611
2612 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2613 {
2614 return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2615 }
2616
2617 int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2618 struct snd_compr_params *params)
2619 {
2620 struct wm_adsp_compr *compr = stream->runtime->private_data;
2621 unsigned int size;
2622 int ret;
2623
2624 ret = wm_adsp_compr_check_params(stream, params);
2625 if (ret)
2626 return ret;
2627
2628 compr->size = params->buffer;
2629
2630 adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2631 compr->size.fragment_size, compr->size.fragments);
2632
2633 size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2634 compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2635 if (!compr->raw_buf)
2636 return -ENOMEM;
2637
2638 compr->sample_rate = params->codec.sample_rate;
2639
2640 return 0;
2641 }
2642 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2643
2644 int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2645 struct snd_compr_caps *caps)
2646 {
2647 struct wm_adsp_compr *compr = stream->runtime->private_data;
2648 int fw = compr->dsp->fw;
2649 int i;
2650
2651 if (wm_adsp_fw[fw].caps) {
2652 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2653 caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2654
2655 caps->num_codecs = i;
2656 caps->direction = wm_adsp_fw[fw].compr_direction;
2657
2658 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2659 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2660 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2661 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2662 }
2663
2664 return 0;
2665 }
2666 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2667
2668 static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2669 unsigned int mem_addr,
2670 unsigned int num_words, u32 *data)
2671 {
2672 struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2673 unsigned int i, reg;
2674 int ret;
2675
2676 if (!mem)
2677 return -EINVAL;
2678
2679 reg = wm_adsp_region_to_reg(mem, mem_addr);
2680
2681 ret = regmap_raw_read(dsp->regmap, reg, data,
2682 sizeof(*data) * num_words);
2683 if (ret < 0)
2684 return ret;
2685
2686 for (i = 0; i < num_words; ++i)
2687 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2688
2689 return 0;
2690 }
2691
2692 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
2693 unsigned int mem_addr, u32 *data)
2694 {
2695 return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
2696 }
2697
2698 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
2699 unsigned int mem_addr, u32 data)
2700 {
2701 struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2702 unsigned int reg;
2703
2704 if (!mem)
2705 return -EINVAL;
2706
2707 reg = wm_adsp_region_to_reg(mem, mem_addr);
2708
2709 data = cpu_to_be32(data & 0x00ffffffu);
2710
2711 return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
2712 }
2713
2714 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
2715 unsigned int field_offset, u32 *data)
2716 {
2717 return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
2718 buf->host_buf_ptr + field_offset, data);
2719 }
2720
2721 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
2722 unsigned int field_offset, u32 data)
2723 {
2724 return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
2725 buf->host_buf_ptr + field_offset, data);
2726 }
2727
2728 static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
2729 {
2730 struct wm_adsp_alg_region *alg_region;
2731 struct wm_adsp *dsp = buf->dsp;
2732 u32 xmalg, addr, magic;
2733 int i, ret;
2734
2735 alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
2736 xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
2737
2738 addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
2739 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
2740 if (ret < 0)
2741 return ret;
2742
2743 if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
2744 return -EINVAL;
2745
2746 addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
2747 for (i = 0; i < 5; ++i) {
2748 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
2749 &buf->host_buf_ptr);
2750 if (ret < 0)
2751 return ret;
2752
2753 if (buf->host_buf_ptr)
2754 break;
2755
2756 usleep_range(1000, 2000);
2757 }
2758
2759 if (!buf->host_buf_ptr)
2760 return -EIO;
2761
2762 adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
2763
2764 return 0;
2765 }
2766
2767 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
2768 {
2769 const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
2770 struct wm_adsp_buffer_region *region;
2771 u32 offset = 0;
2772 int i, ret;
2773
2774 for (i = 0; i < caps->num_regions; ++i) {
2775 region = &buf->regions[i];
2776
2777 region->offset = offset;
2778 region->mem_type = caps->region_defs[i].mem_type;
2779
2780 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
2781 &region->base_addr);
2782 if (ret < 0)
2783 return ret;
2784
2785 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
2786 &offset);
2787 if (ret < 0)
2788 return ret;
2789
2790 region->cumulative_size = offset;
2791
2792 adsp_dbg(buf->dsp,
2793 "region=%d type=%d base=%04x off=%04x size=%04x\n",
2794 i, region->mem_type, region->base_addr,
2795 region->offset, region->cumulative_size);
2796 }
2797
2798 return 0;
2799 }
2800
2801 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
2802 {
2803 struct wm_adsp_compr_buf *buf;
2804 int ret;
2805
2806 buf = kzalloc(sizeof(*buf), GFP_KERNEL);
2807 if (!buf)
2808 return -ENOMEM;
2809
2810 buf->dsp = dsp;
2811 buf->read_index = -1;
2812 buf->irq_count = 0xFFFFFFFF;
2813
2814 ret = wm_adsp_buffer_locate(buf);
2815 if (ret < 0) {
2816 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
2817 goto err_buffer;
2818 }
2819
2820 buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
2821 sizeof(*buf->regions), GFP_KERNEL);
2822 if (!buf->regions) {
2823 ret = -ENOMEM;
2824 goto err_buffer;
2825 }
2826
2827 ret = wm_adsp_buffer_populate(buf);
2828 if (ret < 0) {
2829 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
2830 goto err_regions;
2831 }
2832
2833 dsp->buffer = buf;
2834
2835 return 0;
2836
2837 err_regions:
2838 kfree(buf->regions);
2839 err_buffer:
2840 kfree(buf);
2841 return ret;
2842 }
2843
2844 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
2845 {
2846 if (dsp->buffer) {
2847 wm_adsp_compr_detach(dsp->buffer->compr);
2848
2849 kfree(dsp->buffer->regions);
2850 kfree(dsp->buffer);
2851
2852 dsp->buffer = NULL;
2853 }
2854
2855 return 0;
2856 }
2857
2858 int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
2859 {
2860 struct wm_adsp_compr *compr = stream->runtime->private_data;
2861 struct wm_adsp *dsp = compr->dsp;
2862 int ret = 0;
2863
2864 adsp_dbg(dsp, "Trigger: %d\n", cmd);
2865
2866 mutex_lock(&dsp->pwr_lock);
2867
2868 switch (cmd) {
2869 case SNDRV_PCM_TRIGGER_START:
2870 if (wm_adsp_compr_attached(compr))
2871 break;
2872
2873 ret = wm_adsp_compr_attach(compr);
2874 if (ret < 0) {
2875 adsp_err(dsp, "Failed to link buffer and stream: %d\n",
2876 ret);
2877 break;
2878 }
2879
2880 /* Trigger the IRQ at one fragment of data */
2881 ret = wm_adsp_buffer_write(compr->buf,
2882 HOST_BUFFER_FIELD(high_water_mark),
2883 wm_adsp_compr_frag_words(compr));
2884 if (ret < 0) {
2885 adsp_err(dsp, "Failed to set high water mark: %d\n",
2886 ret);
2887 break;
2888 }
2889 break;
2890 case SNDRV_PCM_TRIGGER_STOP:
2891 break;
2892 default:
2893 ret = -EINVAL;
2894 break;
2895 }
2896
2897 mutex_unlock(&dsp->pwr_lock);
2898
2899 return ret;
2900 }
2901 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
2902
2903 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
2904 {
2905 int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
2906
2907 return buf->regions[last_region].cumulative_size;
2908 }
2909
2910 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
2911 {
2912 u32 next_read_index, next_write_index;
2913 int write_index, read_index, avail;
2914 int ret;
2915
2916 /* Only sync read index if we haven't already read a valid index */
2917 if (buf->read_index < 0) {
2918 ret = wm_adsp_buffer_read(buf,
2919 HOST_BUFFER_FIELD(next_read_index),
2920 &next_read_index);
2921 if (ret < 0)
2922 return ret;
2923
2924 read_index = sign_extend32(next_read_index, 23);
2925
2926 if (read_index < 0) {
2927 adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
2928 return 0;
2929 }
2930
2931 buf->read_index = read_index;
2932 }
2933
2934 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
2935 &next_write_index);
2936 if (ret < 0)
2937 return ret;
2938
2939 write_index = sign_extend32(next_write_index, 23);
2940
2941 avail = write_index - buf->read_index;
2942 if (avail < 0)
2943 avail += wm_adsp_buffer_size(buf);
2944
2945 adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
2946 buf->read_index, write_index, avail * WM_ADSP_DATA_WORD_SIZE);
2947
2948 buf->avail = avail;
2949
2950 return 0;
2951 }
2952
2953 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
2954 {
2955 int ret;
2956
2957 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
2958 if (ret < 0) {
2959 adsp_err(buf->dsp, "Failed to check buffer error: %d\n", ret);
2960 return ret;
2961 }
2962 if (buf->error != 0) {
2963 adsp_err(buf->dsp, "Buffer error occurred: %d\n", buf->error);
2964 return -EIO;
2965 }
2966
2967 return 0;
2968 }
2969
2970 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
2971 {
2972 struct wm_adsp_compr_buf *buf;
2973 struct wm_adsp_compr *compr;
2974 int ret = 0;
2975
2976 mutex_lock(&dsp->pwr_lock);
2977
2978 buf = dsp->buffer;
2979 compr = dsp->compr;
2980
2981 if (!buf) {
2982 ret = -ENODEV;
2983 goto out;
2984 }
2985
2986 adsp_dbg(dsp, "Handling buffer IRQ\n");
2987
2988 ret = wm_adsp_buffer_get_error(buf);
2989 if (ret < 0)
2990 goto out_notify; /* Wake poll to report error */
2991
2992 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
2993 &buf->irq_count);
2994 if (ret < 0) {
2995 adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
2996 goto out;
2997 }
2998
2999 ret = wm_adsp_buffer_update_avail(buf);
3000 if (ret < 0) {
3001 adsp_err(dsp, "Error reading avail: %d\n", ret);
3002 goto out;
3003 }
3004
3005 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
3006 ret = WM_ADSP_COMPR_VOICE_TRIGGER;
3007
3008 out_notify:
3009 if (compr && compr->stream)
3010 snd_compr_fragment_elapsed(compr->stream);
3011
3012 out:
3013 mutex_unlock(&dsp->pwr_lock);
3014
3015 return ret;
3016 }
3017 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
3018
3019 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
3020 {
3021 if (buf->irq_count & 0x01)
3022 return 0;
3023
3024 adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
3025 buf->irq_count);
3026
3027 buf->irq_count |= 0x01;
3028
3029 return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
3030 buf->irq_count);
3031 }
3032
3033 int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
3034 struct snd_compr_tstamp *tstamp)
3035 {
3036 struct wm_adsp_compr *compr = stream->runtime->private_data;
3037 struct wm_adsp *dsp = compr->dsp;
3038 struct wm_adsp_compr_buf *buf;
3039 int ret = 0;
3040
3041 adsp_dbg(dsp, "Pointer request\n");
3042
3043 mutex_lock(&dsp->pwr_lock);
3044
3045 buf = compr->buf;
3046
3047 if (!compr->buf || compr->buf->error) {
3048 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
3049 ret = -EIO;
3050 goto out;
3051 }
3052
3053 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3054 ret = wm_adsp_buffer_update_avail(buf);
3055 if (ret < 0) {
3056 adsp_err(dsp, "Error reading avail: %d\n", ret);
3057 goto out;
3058 }
3059
3060 /*
3061 * If we really have less than 1 fragment available tell the
3062 * DSP to inform us once a whole fragment is available.
3063 */
3064 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3065 ret = wm_adsp_buffer_get_error(buf);
3066 if (ret < 0) {
3067 if (compr->buf->error)
3068 snd_compr_stop_error(stream,
3069 SNDRV_PCM_STATE_XRUN);
3070 goto out;
3071 }
3072
3073 ret = wm_adsp_buffer_reenable_irq(buf);
3074 if (ret < 0) {
3075 adsp_err(dsp,
3076 "Failed to re-enable buffer IRQ: %d\n",
3077 ret);
3078 goto out;
3079 }
3080 }
3081 }
3082
3083 tstamp->copied_total = compr->copied_total;
3084 tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
3085 tstamp->sampling_rate = compr->sample_rate;
3086
3087 out:
3088 mutex_unlock(&dsp->pwr_lock);
3089
3090 return ret;
3091 }
3092 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
3093
3094 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
3095 {
3096 struct wm_adsp_compr_buf *buf = compr->buf;
3097 u8 *pack_in = (u8 *)compr->raw_buf;
3098 u8 *pack_out = (u8 *)compr->raw_buf;
3099 unsigned int adsp_addr;
3100 int mem_type, nwords, max_read;
3101 int i, j, ret;
3102
3103 /* Calculate read parameters */
3104 for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
3105 if (buf->read_index < buf->regions[i].cumulative_size)
3106 break;
3107
3108 if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
3109 return -EINVAL;
3110
3111 mem_type = buf->regions[i].mem_type;
3112 adsp_addr = buf->regions[i].base_addr +
3113 (buf->read_index - buf->regions[i].offset);
3114
3115 max_read = wm_adsp_compr_frag_words(compr);
3116 nwords = buf->regions[i].cumulative_size - buf->read_index;
3117
3118 if (nwords > target)
3119 nwords = target;
3120 if (nwords > buf->avail)
3121 nwords = buf->avail;
3122 if (nwords > max_read)
3123 nwords = max_read;
3124 if (!nwords)
3125 return 0;
3126
3127 /* Read data from DSP */
3128 ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
3129 nwords, compr->raw_buf);
3130 if (ret < 0)
3131 return ret;
3132
3133 /* Remove the padding bytes from the data read from the DSP */
3134 for (i = 0; i < nwords; i++) {
3135 for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
3136 *pack_out++ = *pack_in++;
3137
3138 pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
3139 }
3140
3141 /* update read index to account for words read */
3142 buf->read_index += nwords;
3143 if (buf->read_index == wm_adsp_buffer_size(buf))
3144 buf->read_index = 0;
3145
3146 ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
3147 buf->read_index);
3148 if (ret < 0)
3149 return ret;
3150
3151 /* update avail to account for words read */
3152 buf->avail -= nwords;
3153
3154 return nwords;
3155 }
3156
3157 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
3158 char __user *buf, size_t count)
3159 {
3160 struct wm_adsp *dsp = compr->dsp;
3161 int ntotal = 0;
3162 int nwords, nbytes;
3163
3164 adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
3165
3166 if (!compr->buf || compr->buf->error) {
3167 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
3168 return -EIO;
3169 }
3170
3171 count /= WM_ADSP_DATA_WORD_SIZE;
3172
3173 do {
3174 nwords = wm_adsp_buffer_capture_block(compr, count);
3175 if (nwords < 0) {
3176 adsp_err(dsp, "Failed to capture block: %d\n", nwords);
3177 return nwords;
3178 }
3179
3180 nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
3181
3182 adsp_dbg(dsp, "Read %d bytes\n", nbytes);
3183
3184 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
3185 adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
3186 ntotal, nbytes);
3187 return -EFAULT;
3188 }
3189
3190 count -= nwords;
3191 ntotal += nbytes;
3192 } while (nwords > 0 && count > 0);
3193
3194 compr->copied_total += ntotal;
3195
3196 return ntotal;
3197 }
3198
3199 int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
3200 size_t count)
3201 {
3202 struct wm_adsp_compr *compr = stream->runtime->private_data;
3203 struct wm_adsp *dsp = compr->dsp;
3204 int ret;
3205
3206 mutex_lock(&dsp->pwr_lock);
3207
3208 if (stream->direction == SND_COMPRESS_CAPTURE)
3209 ret = wm_adsp_compr_read(compr, buf, count);
3210 else
3211 ret = -ENOTSUPP;
3212
3213 mutex_unlock(&dsp->pwr_lock);
3214
3215 return ret;
3216 }
3217 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
3218
3219 MODULE_LICENSE("GPL v2");
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