xref: /openbmc/linux/sound/soc/codecs/wm_adsp.c (revision c819e2cf)
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 <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/jack.h>
31 #include <sound/initval.h>
32 #include <sound/tlv.h>
33 
34 #include <linux/mfd/arizona/registers.h>
35 
36 #include "arizona.h"
37 #include "wm_adsp.h"
38 
39 #define adsp_crit(_dsp, fmt, ...) \
40 	dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
41 #define adsp_err(_dsp, fmt, ...) \
42 	dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
43 #define adsp_warn(_dsp, fmt, ...) \
44 	dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
45 #define adsp_info(_dsp, fmt, ...) \
46 	dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
47 #define adsp_dbg(_dsp, fmt, ...) \
48 	dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
49 
50 #define ADSP1_CONTROL_1                   0x00
51 #define ADSP1_CONTROL_2                   0x02
52 #define ADSP1_CONTROL_3                   0x03
53 #define ADSP1_CONTROL_4                   0x04
54 #define ADSP1_CONTROL_5                   0x06
55 #define ADSP1_CONTROL_6                   0x07
56 #define ADSP1_CONTROL_7                   0x08
57 #define ADSP1_CONTROL_8                   0x09
58 #define ADSP1_CONTROL_9                   0x0A
59 #define ADSP1_CONTROL_10                  0x0B
60 #define ADSP1_CONTROL_11                  0x0C
61 #define ADSP1_CONTROL_12                  0x0D
62 #define ADSP1_CONTROL_13                  0x0F
63 #define ADSP1_CONTROL_14                  0x10
64 #define ADSP1_CONTROL_15                  0x11
65 #define ADSP1_CONTROL_16                  0x12
66 #define ADSP1_CONTROL_17                  0x13
67 #define ADSP1_CONTROL_18                  0x14
68 #define ADSP1_CONTROL_19                  0x16
69 #define ADSP1_CONTROL_20                  0x17
70 #define ADSP1_CONTROL_21                  0x18
71 #define ADSP1_CONTROL_22                  0x1A
72 #define ADSP1_CONTROL_23                  0x1B
73 #define ADSP1_CONTROL_24                  0x1C
74 #define ADSP1_CONTROL_25                  0x1E
75 #define ADSP1_CONTROL_26                  0x20
76 #define ADSP1_CONTROL_27                  0x21
77 #define ADSP1_CONTROL_28                  0x22
78 #define ADSP1_CONTROL_29                  0x23
79 #define ADSP1_CONTROL_30                  0x24
80 #define ADSP1_CONTROL_31                  0x26
81 
82 /*
83  * ADSP1 Control 19
84  */
85 #define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
86 #define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
87 #define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
88 
89 
90 /*
91  * ADSP1 Control 30
92  */
93 #define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
94 #define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
95 #define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
96 #define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
97 #define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
98 #define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
99 #define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
100 #define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
101 #define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
102 #define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
103 #define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
104 #define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
105 #define ADSP1_START                       0x0001  /* DSP1_START */
106 #define ADSP1_START_MASK                  0x0001  /* DSP1_START */
107 #define ADSP1_START_SHIFT                      0  /* DSP1_START */
108 #define ADSP1_START_WIDTH                      1  /* DSP1_START */
109 
110 /*
111  * ADSP1 Control 31
112  */
113 #define ADSP1_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
114 #define ADSP1_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
115 #define ADSP1_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
116 
117 #define ADSP2_CONTROL        0x0
118 #define ADSP2_CLOCKING       0x1
119 #define ADSP2_STATUS1        0x4
120 #define ADSP2_WDMA_CONFIG_1 0x30
121 #define ADSP2_WDMA_CONFIG_2 0x31
122 #define ADSP2_RDMA_CONFIG_1 0x34
123 
124 /*
125  * ADSP2 Control
126  */
127 
128 #define ADSP2_MEM_ENA                     0x0010  /* DSP1_MEM_ENA */
129 #define ADSP2_MEM_ENA_MASK                0x0010  /* DSP1_MEM_ENA */
130 #define ADSP2_MEM_ENA_SHIFT                    4  /* DSP1_MEM_ENA */
131 #define ADSP2_MEM_ENA_WIDTH                    1  /* DSP1_MEM_ENA */
132 #define ADSP2_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
133 #define ADSP2_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
134 #define ADSP2_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
135 #define ADSP2_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
136 #define ADSP2_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
137 #define ADSP2_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
138 #define ADSP2_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
139 #define ADSP2_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
140 #define ADSP2_START                       0x0001  /* DSP1_START */
141 #define ADSP2_START_MASK                  0x0001  /* DSP1_START */
142 #define ADSP2_START_SHIFT                      0  /* DSP1_START */
143 #define ADSP2_START_WIDTH                      1  /* DSP1_START */
144 
145 /*
146  * ADSP2 clocking
147  */
148 #define ADSP2_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
149 #define ADSP2_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
150 #define ADSP2_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
151 
152 /*
153  * ADSP2 Status 1
154  */
155 #define ADSP2_RAM_RDY                     0x0001
156 #define ADSP2_RAM_RDY_MASK                0x0001
157 #define ADSP2_RAM_RDY_SHIFT                    0
158 #define ADSP2_RAM_RDY_WIDTH                    1
159 
160 struct wm_adsp_buf {
161 	struct list_head list;
162 	void *buf;
163 };
164 
165 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
166 					     struct list_head *list)
167 {
168 	struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
169 
170 	if (buf == NULL)
171 		return NULL;
172 
173 	buf->buf = vmalloc(len);
174 	if (!buf->buf) {
175 		vfree(buf);
176 		return NULL;
177 	}
178 	memcpy(buf->buf, src, len);
179 
180 	if (list)
181 		list_add_tail(&buf->list, list);
182 
183 	return buf;
184 }
185 
186 static void wm_adsp_buf_free(struct list_head *list)
187 {
188 	while (!list_empty(list)) {
189 		struct wm_adsp_buf *buf = list_first_entry(list,
190 							   struct wm_adsp_buf,
191 							   list);
192 		list_del(&buf->list);
193 		vfree(buf->buf);
194 		kfree(buf);
195 	}
196 }
197 
198 #define WM_ADSP_NUM_FW 4
199 
200 #define WM_ADSP_FW_MBC_VSS 0
201 #define WM_ADSP_FW_TX      1
202 #define WM_ADSP_FW_TX_SPK  2
203 #define WM_ADSP_FW_RX_ANC  3
204 
205 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
206 	[WM_ADSP_FW_MBC_VSS] = "MBC/VSS",
207 	[WM_ADSP_FW_TX] =      "Tx",
208 	[WM_ADSP_FW_TX_SPK] =  "Tx Speaker",
209 	[WM_ADSP_FW_RX_ANC] =  "Rx ANC",
210 };
211 
212 static struct {
213 	const char *file;
214 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
215 	[WM_ADSP_FW_MBC_VSS] = { .file = "mbc-vss" },
216 	[WM_ADSP_FW_TX] =      { .file = "tx" },
217 	[WM_ADSP_FW_TX_SPK] =  { .file = "tx-spk" },
218 	[WM_ADSP_FW_RX_ANC] =  { .file = "rx-anc" },
219 };
220 
221 struct wm_coeff_ctl_ops {
222 	int (*xget)(struct snd_kcontrol *kcontrol,
223 		    struct snd_ctl_elem_value *ucontrol);
224 	int (*xput)(struct snd_kcontrol *kcontrol,
225 		    struct snd_ctl_elem_value *ucontrol);
226 	int (*xinfo)(struct snd_kcontrol *kcontrol,
227 		     struct snd_ctl_elem_info *uinfo);
228 };
229 
230 struct wm_coeff_ctl {
231 	const char *name;
232 	struct wm_adsp_alg_region region;
233 	struct wm_coeff_ctl_ops ops;
234 	struct wm_adsp *adsp;
235 	void *private;
236 	unsigned int enabled:1;
237 	struct list_head list;
238 	void *cache;
239 	size_t len;
240 	unsigned int set:1;
241 	struct snd_kcontrol *kcontrol;
242 };
243 
244 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
245 			  struct snd_ctl_elem_value *ucontrol)
246 {
247 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
248 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
249 	struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);
250 
251 	ucontrol->value.integer.value[0] = adsp[e->shift_l].fw;
252 
253 	return 0;
254 }
255 
256 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
257 			  struct snd_ctl_elem_value *ucontrol)
258 {
259 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
260 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
261 	struct wm_adsp *adsp = snd_soc_codec_get_drvdata(codec);
262 
263 	if (ucontrol->value.integer.value[0] == adsp[e->shift_l].fw)
264 		return 0;
265 
266 	if (ucontrol->value.integer.value[0] >= WM_ADSP_NUM_FW)
267 		return -EINVAL;
268 
269 	if (adsp[e->shift_l].running)
270 		return -EBUSY;
271 
272 	adsp[e->shift_l].fw = ucontrol->value.integer.value[0];
273 
274 	return 0;
275 }
276 
277 static const struct soc_enum wm_adsp_fw_enum[] = {
278 	SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
279 	SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
280 	SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
281 	SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
282 };
283 
284 const struct snd_kcontrol_new wm_adsp1_fw_controls[] = {
285 	SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
286 		     wm_adsp_fw_get, wm_adsp_fw_put),
287 	SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
288 		     wm_adsp_fw_get, wm_adsp_fw_put),
289 	SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
290 		     wm_adsp_fw_get, wm_adsp_fw_put),
291 };
292 EXPORT_SYMBOL_GPL(wm_adsp1_fw_controls);
293 
294 #if IS_ENABLED(CONFIG_SND_SOC_ARIZONA)
295 static const struct soc_enum wm_adsp2_rate_enum[] = {
296 	SOC_VALUE_ENUM_SINGLE(ARIZONA_DSP1_CONTROL_1,
297 			      ARIZONA_DSP1_RATE_SHIFT, 0xf,
298 			      ARIZONA_RATE_ENUM_SIZE,
299 			      arizona_rate_text, arizona_rate_val),
300 	SOC_VALUE_ENUM_SINGLE(ARIZONA_DSP2_CONTROL_1,
301 			      ARIZONA_DSP1_RATE_SHIFT, 0xf,
302 			      ARIZONA_RATE_ENUM_SIZE,
303 			      arizona_rate_text, arizona_rate_val),
304 	SOC_VALUE_ENUM_SINGLE(ARIZONA_DSP3_CONTROL_1,
305 			      ARIZONA_DSP1_RATE_SHIFT, 0xf,
306 			      ARIZONA_RATE_ENUM_SIZE,
307 			      arizona_rate_text, arizona_rate_val),
308 	SOC_VALUE_ENUM_SINGLE(ARIZONA_DSP4_CONTROL_1,
309 			      ARIZONA_DSP1_RATE_SHIFT, 0xf,
310 			      ARIZONA_RATE_ENUM_SIZE,
311 			      arizona_rate_text, arizona_rate_val),
312 };
313 
314 const struct snd_kcontrol_new wm_adsp2_fw_controls[] = {
315 	SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
316 		     wm_adsp_fw_get, wm_adsp_fw_put),
317 	SOC_ENUM("DSP1 Rate", wm_adsp2_rate_enum[0]),
318 	SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
319 		     wm_adsp_fw_get, wm_adsp_fw_put),
320 	SOC_ENUM("DSP2 Rate", wm_adsp2_rate_enum[1]),
321 	SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
322 		     wm_adsp_fw_get, wm_adsp_fw_put),
323 	SOC_ENUM("DSP3 Rate", wm_adsp2_rate_enum[2]),
324 	SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
325 		     wm_adsp_fw_get, wm_adsp_fw_put),
326 	SOC_ENUM("DSP4 Rate", wm_adsp2_rate_enum[3]),
327 };
328 EXPORT_SYMBOL_GPL(wm_adsp2_fw_controls);
329 #endif
330 
331 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
332 							int type)
333 {
334 	int i;
335 
336 	for (i = 0; i < dsp->num_mems; i++)
337 		if (dsp->mem[i].type == type)
338 			return &dsp->mem[i];
339 
340 	return NULL;
341 }
342 
343 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *region,
344 					  unsigned int offset)
345 {
346 	if (WARN_ON(!region))
347 		return offset;
348 	switch (region->type) {
349 	case WMFW_ADSP1_PM:
350 		return region->base + (offset * 3);
351 	case WMFW_ADSP1_DM:
352 		return region->base + (offset * 2);
353 	case WMFW_ADSP2_XM:
354 		return region->base + (offset * 2);
355 	case WMFW_ADSP2_YM:
356 		return region->base + (offset * 2);
357 	case WMFW_ADSP1_ZM:
358 		return region->base + (offset * 2);
359 	default:
360 		WARN(1, "Unknown memory region type");
361 		return offset;
362 	}
363 }
364 
365 static int wm_coeff_info(struct snd_kcontrol *kcontrol,
366 			 struct snd_ctl_elem_info *uinfo)
367 {
368 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
369 
370 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
371 	uinfo->count = ctl->len;
372 	return 0;
373 }
374 
375 static int wm_coeff_write_control(struct snd_kcontrol *kcontrol,
376 				  const void *buf, size_t len)
377 {
378 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
379 	struct wm_adsp_alg_region *region = &ctl->region;
380 	const struct wm_adsp_region *mem;
381 	struct wm_adsp *adsp = ctl->adsp;
382 	void *scratch;
383 	int ret;
384 	unsigned int reg;
385 
386 	mem = wm_adsp_find_region(adsp, region->type);
387 	if (!mem) {
388 		adsp_err(adsp, "No base for region %x\n",
389 			 region->type);
390 		return -EINVAL;
391 	}
392 
393 	reg = ctl->region.base;
394 	reg = wm_adsp_region_to_reg(mem, reg);
395 
396 	scratch = kmemdup(buf, ctl->len, GFP_KERNEL | GFP_DMA);
397 	if (!scratch)
398 		return -ENOMEM;
399 
400 	ret = regmap_raw_write(adsp->regmap, reg, scratch,
401 			       ctl->len);
402 	if (ret) {
403 		adsp_err(adsp, "Failed to write %zu bytes to %x: %d\n",
404 			 ctl->len, reg, ret);
405 		kfree(scratch);
406 		return ret;
407 	}
408 	adsp_dbg(adsp, "Wrote %zu bytes to %x\n", ctl->len, reg);
409 
410 	kfree(scratch);
411 
412 	return 0;
413 }
414 
415 static int wm_coeff_put(struct snd_kcontrol *kcontrol,
416 			struct snd_ctl_elem_value *ucontrol)
417 {
418 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
419 	char *p = ucontrol->value.bytes.data;
420 
421 	memcpy(ctl->cache, p, ctl->len);
422 
423 	if (!ctl->enabled) {
424 		ctl->set = 1;
425 		return 0;
426 	}
427 
428 	return wm_coeff_write_control(kcontrol, p, ctl->len);
429 }
430 
431 static int wm_coeff_read_control(struct snd_kcontrol *kcontrol,
432 				 void *buf, size_t len)
433 {
434 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
435 	struct wm_adsp_alg_region *region = &ctl->region;
436 	const struct wm_adsp_region *mem;
437 	struct wm_adsp *adsp = ctl->adsp;
438 	void *scratch;
439 	int ret;
440 	unsigned int reg;
441 
442 	mem = wm_adsp_find_region(adsp, region->type);
443 	if (!mem) {
444 		adsp_err(adsp, "No base for region %x\n",
445 			 region->type);
446 		return -EINVAL;
447 	}
448 
449 	reg = ctl->region.base;
450 	reg = wm_adsp_region_to_reg(mem, reg);
451 
452 	scratch = kmalloc(ctl->len, GFP_KERNEL | GFP_DMA);
453 	if (!scratch)
454 		return -ENOMEM;
455 
456 	ret = regmap_raw_read(adsp->regmap, reg, scratch, ctl->len);
457 	if (ret) {
458 		adsp_err(adsp, "Failed to read %zu bytes from %x: %d\n",
459 			 ctl->len, reg, ret);
460 		kfree(scratch);
461 		return ret;
462 	}
463 	adsp_dbg(adsp, "Read %zu bytes from %x\n", ctl->len, reg);
464 
465 	memcpy(buf, scratch, ctl->len);
466 	kfree(scratch);
467 
468 	return 0;
469 }
470 
471 static int wm_coeff_get(struct snd_kcontrol *kcontrol,
472 			struct snd_ctl_elem_value *ucontrol)
473 {
474 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
475 	char *p = ucontrol->value.bytes.data;
476 
477 	memcpy(p, ctl->cache, ctl->len);
478 	return 0;
479 }
480 
481 struct wmfw_ctl_work {
482 	struct wm_adsp *adsp;
483 	struct wm_coeff_ctl *ctl;
484 	struct work_struct work;
485 };
486 
487 static int wmfw_add_ctl(struct wm_adsp *adsp, struct wm_coeff_ctl *ctl)
488 {
489 	struct snd_kcontrol_new *kcontrol;
490 	int ret;
491 
492 	if (!ctl || !ctl->name)
493 		return -EINVAL;
494 
495 	kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
496 	if (!kcontrol)
497 		return -ENOMEM;
498 	kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
499 
500 	kcontrol->name = ctl->name;
501 	kcontrol->info = wm_coeff_info;
502 	kcontrol->get = wm_coeff_get;
503 	kcontrol->put = wm_coeff_put;
504 	kcontrol->private_value = (unsigned long)ctl;
505 
506 	ret = snd_soc_add_card_controls(adsp->card,
507 					kcontrol, 1);
508 	if (ret < 0)
509 		goto err_kcontrol;
510 
511 	kfree(kcontrol);
512 
513 	ctl->kcontrol = snd_soc_card_get_kcontrol(adsp->card,
514 						  ctl->name);
515 
516 	list_add(&ctl->list, &adsp->ctl_list);
517 	return 0;
518 
519 err_kcontrol:
520 	kfree(kcontrol);
521 	return ret;
522 }
523 
524 static int wm_adsp_load(struct wm_adsp *dsp)
525 {
526 	LIST_HEAD(buf_list);
527 	const struct firmware *firmware;
528 	struct regmap *regmap = dsp->regmap;
529 	unsigned int pos = 0;
530 	const struct wmfw_header *header;
531 	const struct wmfw_adsp1_sizes *adsp1_sizes;
532 	const struct wmfw_adsp2_sizes *adsp2_sizes;
533 	const struct wmfw_footer *footer;
534 	const struct wmfw_region *region;
535 	const struct wm_adsp_region *mem;
536 	const char *region_name;
537 	char *file, *text;
538 	struct wm_adsp_buf *buf;
539 	unsigned int reg;
540 	int regions = 0;
541 	int ret, offset, type, sizes;
542 
543 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
544 	if (file == NULL)
545 		return -ENOMEM;
546 
547 	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
548 		 wm_adsp_fw[dsp->fw].file);
549 	file[PAGE_SIZE - 1] = '\0';
550 
551 	ret = request_firmware(&firmware, file, dsp->dev);
552 	if (ret != 0) {
553 		adsp_err(dsp, "Failed to request '%s'\n", file);
554 		goto out;
555 	}
556 	ret = -EINVAL;
557 
558 	pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
559 	if (pos >= firmware->size) {
560 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
561 			 file, firmware->size);
562 		goto out_fw;
563 	}
564 
565 	header = (void*)&firmware->data[0];
566 
567 	if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
568 		adsp_err(dsp, "%s: invalid magic\n", file);
569 		goto out_fw;
570 	}
571 
572 	if (header->ver != 0) {
573 		adsp_err(dsp, "%s: unknown file format %d\n",
574 			 file, header->ver);
575 		goto out_fw;
576 	}
577 	adsp_info(dsp, "Firmware version: %d\n", header->ver);
578 
579 	if (header->core != dsp->type) {
580 		adsp_err(dsp, "%s: invalid core %d != %d\n",
581 			 file, header->core, dsp->type);
582 		goto out_fw;
583 	}
584 
585 	switch (dsp->type) {
586 	case WMFW_ADSP1:
587 		pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
588 		adsp1_sizes = (void *)&(header[1]);
589 		footer = (void *)&(adsp1_sizes[1]);
590 		sizes = sizeof(*adsp1_sizes);
591 
592 		adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
593 			 file, le32_to_cpu(adsp1_sizes->dm),
594 			 le32_to_cpu(adsp1_sizes->pm),
595 			 le32_to_cpu(adsp1_sizes->zm));
596 		break;
597 
598 	case WMFW_ADSP2:
599 		pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
600 		adsp2_sizes = (void *)&(header[1]);
601 		footer = (void *)&(adsp2_sizes[1]);
602 		sizes = sizeof(*adsp2_sizes);
603 
604 		adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
605 			 file, le32_to_cpu(adsp2_sizes->xm),
606 			 le32_to_cpu(adsp2_sizes->ym),
607 			 le32_to_cpu(adsp2_sizes->pm),
608 			 le32_to_cpu(adsp2_sizes->zm));
609 		break;
610 
611 	default:
612 		WARN(1, "Unknown DSP type");
613 		goto out_fw;
614 	}
615 
616 	if (le32_to_cpu(header->len) != sizeof(*header) +
617 	    sizes + sizeof(*footer)) {
618 		adsp_err(dsp, "%s: unexpected header length %d\n",
619 			 file, le32_to_cpu(header->len));
620 		goto out_fw;
621 	}
622 
623 	adsp_dbg(dsp, "%s: timestamp %llu\n", file,
624 		 le64_to_cpu(footer->timestamp));
625 
626 	while (pos < firmware->size &&
627 	       pos - firmware->size > sizeof(*region)) {
628 		region = (void *)&(firmware->data[pos]);
629 		region_name = "Unknown";
630 		reg = 0;
631 		text = NULL;
632 		offset = le32_to_cpu(region->offset) & 0xffffff;
633 		type = be32_to_cpu(region->type) & 0xff;
634 		mem = wm_adsp_find_region(dsp, type);
635 
636 		switch (type) {
637 		case WMFW_NAME_TEXT:
638 			region_name = "Firmware name";
639 			text = kzalloc(le32_to_cpu(region->len) + 1,
640 				       GFP_KERNEL);
641 			break;
642 		case WMFW_INFO_TEXT:
643 			region_name = "Information";
644 			text = kzalloc(le32_to_cpu(region->len) + 1,
645 				       GFP_KERNEL);
646 			break;
647 		case WMFW_ABSOLUTE:
648 			region_name = "Absolute";
649 			reg = offset;
650 			break;
651 		case WMFW_ADSP1_PM:
652 			region_name = "PM";
653 			reg = wm_adsp_region_to_reg(mem, offset);
654 			break;
655 		case WMFW_ADSP1_DM:
656 			region_name = "DM";
657 			reg = wm_adsp_region_to_reg(mem, offset);
658 			break;
659 		case WMFW_ADSP2_XM:
660 			region_name = "XM";
661 			reg = wm_adsp_region_to_reg(mem, offset);
662 			break;
663 		case WMFW_ADSP2_YM:
664 			region_name = "YM";
665 			reg = wm_adsp_region_to_reg(mem, offset);
666 			break;
667 		case WMFW_ADSP1_ZM:
668 			region_name = "ZM";
669 			reg = wm_adsp_region_to_reg(mem, offset);
670 			break;
671 		default:
672 			adsp_warn(dsp,
673 				  "%s.%d: Unknown region type %x at %d(%x)\n",
674 				  file, regions, type, pos, pos);
675 			break;
676 		}
677 
678 		adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
679 			 regions, le32_to_cpu(region->len), offset,
680 			 region_name);
681 
682 		if (text) {
683 			memcpy(text, region->data, le32_to_cpu(region->len));
684 			adsp_info(dsp, "%s: %s\n", file, text);
685 			kfree(text);
686 		}
687 
688 		if (reg) {
689 			buf = wm_adsp_buf_alloc(region->data,
690 						le32_to_cpu(region->len),
691 						&buf_list);
692 			if (!buf) {
693 				adsp_err(dsp, "Out of memory\n");
694 				ret = -ENOMEM;
695 				goto out_fw;
696 			}
697 
698 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
699 						     le32_to_cpu(region->len));
700 			if (ret != 0) {
701 				adsp_err(dsp,
702 					"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
703 					file, regions,
704 					le32_to_cpu(region->len), offset,
705 					region_name, ret);
706 				goto out_fw;
707 			}
708 		}
709 
710 		pos += le32_to_cpu(region->len) + sizeof(*region);
711 		regions++;
712 	}
713 
714 	ret = regmap_async_complete(regmap);
715 	if (ret != 0) {
716 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
717 		goto out_fw;
718 	}
719 
720 	if (pos > firmware->size)
721 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
722 			  file, regions, pos - firmware->size);
723 
724 out_fw:
725 	regmap_async_complete(regmap);
726 	wm_adsp_buf_free(&buf_list);
727 	release_firmware(firmware);
728 out:
729 	kfree(file);
730 
731 	return ret;
732 }
733 
734 static int wm_coeff_init_control_caches(struct wm_adsp *adsp)
735 {
736 	struct wm_coeff_ctl *ctl;
737 	int ret;
738 
739 	list_for_each_entry(ctl, &adsp->ctl_list, list) {
740 		if (!ctl->enabled || ctl->set)
741 			continue;
742 		ret = wm_coeff_read_control(ctl->kcontrol,
743 					    ctl->cache,
744 					    ctl->len);
745 		if (ret < 0)
746 			return ret;
747 	}
748 
749 	return 0;
750 }
751 
752 static int wm_coeff_sync_controls(struct wm_adsp *adsp)
753 {
754 	struct wm_coeff_ctl *ctl;
755 	int ret;
756 
757 	list_for_each_entry(ctl, &adsp->ctl_list, list) {
758 		if (!ctl->enabled)
759 			continue;
760 		if (ctl->set) {
761 			ret = wm_coeff_write_control(ctl->kcontrol,
762 						     ctl->cache,
763 						     ctl->len);
764 			if (ret < 0)
765 				return ret;
766 		}
767 	}
768 
769 	return 0;
770 }
771 
772 static void wm_adsp_ctl_work(struct work_struct *work)
773 {
774 	struct wmfw_ctl_work *ctl_work = container_of(work,
775 						      struct wmfw_ctl_work,
776 						      work);
777 
778 	wmfw_add_ctl(ctl_work->adsp, ctl_work->ctl);
779 	kfree(ctl_work);
780 }
781 
782 static int wm_adsp_create_control(struct wm_adsp *dsp,
783 				  const struct wm_adsp_alg_region *region)
784 
785 {
786 	struct wm_coeff_ctl *ctl;
787 	struct wmfw_ctl_work *ctl_work;
788 	char *name;
789 	char *region_name;
790 	int ret;
791 
792 	name = kmalloc(PAGE_SIZE, GFP_KERNEL);
793 	if (!name)
794 		return -ENOMEM;
795 
796 	switch (region->type) {
797 	case WMFW_ADSP1_PM:
798 		region_name = "PM";
799 		break;
800 	case WMFW_ADSP1_DM:
801 		region_name = "DM";
802 		break;
803 	case WMFW_ADSP2_XM:
804 		region_name = "XM";
805 		break;
806 	case WMFW_ADSP2_YM:
807 		region_name = "YM";
808 		break;
809 	case WMFW_ADSP1_ZM:
810 		region_name = "ZM";
811 		break;
812 	default:
813 		ret = -EINVAL;
814 		goto err_name;
815 	}
816 
817 	snprintf(name, PAGE_SIZE, "DSP%d %s %x",
818 		 dsp->num, region_name, region->alg);
819 
820 	list_for_each_entry(ctl, &dsp->ctl_list,
821 			    list) {
822 		if (!strcmp(ctl->name, name)) {
823 			if (!ctl->enabled)
824 				ctl->enabled = 1;
825 			goto found;
826 		}
827 	}
828 
829 	ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
830 	if (!ctl) {
831 		ret = -ENOMEM;
832 		goto err_name;
833 	}
834 	ctl->region = *region;
835 	ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
836 	if (!ctl->name) {
837 		ret = -ENOMEM;
838 		goto err_ctl;
839 	}
840 	ctl->enabled = 1;
841 	ctl->set = 0;
842 	ctl->ops.xget = wm_coeff_get;
843 	ctl->ops.xput = wm_coeff_put;
844 	ctl->adsp = dsp;
845 
846 	ctl->len = region->len;
847 	ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
848 	if (!ctl->cache) {
849 		ret = -ENOMEM;
850 		goto err_ctl_name;
851 	}
852 
853 	ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
854 	if (!ctl_work) {
855 		ret = -ENOMEM;
856 		goto err_ctl_cache;
857 	}
858 
859 	ctl_work->adsp = dsp;
860 	ctl_work->ctl = ctl;
861 	INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
862 	schedule_work(&ctl_work->work);
863 
864 found:
865 	kfree(name);
866 
867 	return 0;
868 
869 err_ctl_cache:
870 	kfree(ctl->cache);
871 err_ctl_name:
872 	kfree(ctl->name);
873 err_ctl:
874 	kfree(ctl);
875 err_name:
876 	kfree(name);
877 	return ret;
878 }
879 
880 static int wm_adsp_setup_algs(struct wm_adsp *dsp)
881 {
882 	struct regmap *regmap = dsp->regmap;
883 	struct wmfw_adsp1_id_hdr adsp1_id;
884 	struct wmfw_adsp2_id_hdr adsp2_id;
885 	struct wmfw_adsp1_alg_hdr *adsp1_alg;
886 	struct wmfw_adsp2_alg_hdr *adsp2_alg;
887 	void *alg, *buf;
888 	struct wm_adsp_alg_region *region;
889 	const struct wm_adsp_region *mem;
890 	unsigned int pos, term;
891 	size_t algs, buf_size;
892 	__be32 val;
893 	int i, ret;
894 
895 	switch (dsp->type) {
896 	case WMFW_ADSP1:
897 		mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
898 		break;
899 	case WMFW_ADSP2:
900 		mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
901 		break;
902 	default:
903 		mem = NULL;
904 		break;
905 	}
906 
907 	if (WARN_ON(!mem))
908 		return -EINVAL;
909 
910 	switch (dsp->type) {
911 	case WMFW_ADSP1:
912 		ret = regmap_raw_read(regmap, mem->base, &adsp1_id,
913 				      sizeof(adsp1_id));
914 		if (ret != 0) {
915 			adsp_err(dsp, "Failed to read algorithm info: %d\n",
916 				 ret);
917 			return ret;
918 		}
919 
920 		buf = &adsp1_id;
921 		buf_size = sizeof(adsp1_id);
922 
923 		algs = be32_to_cpu(adsp1_id.algs);
924 		dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
925 		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
926 			  dsp->fw_id,
927 			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
928 			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
929 			  be32_to_cpu(adsp1_id.fw.ver) & 0xff,
930 			  algs);
931 
932 		region = kzalloc(sizeof(*region), GFP_KERNEL);
933 		if (!region)
934 			return -ENOMEM;
935 		region->type = WMFW_ADSP1_ZM;
936 		region->alg = be32_to_cpu(adsp1_id.fw.id);
937 		region->base = be32_to_cpu(adsp1_id.zm);
938 		list_add_tail(&region->list, &dsp->alg_regions);
939 
940 		region = kzalloc(sizeof(*region), GFP_KERNEL);
941 		if (!region)
942 			return -ENOMEM;
943 		region->type = WMFW_ADSP1_DM;
944 		region->alg = be32_to_cpu(adsp1_id.fw.id);
945 		region->base = be32_to_cpu(adsp1_id.dm);
946 		list_add_tail(&region->list, &dsp->alg_regions);
947 
948 		pos = sizeof(adsp1_id) / 2;
949 		term = pos + ((sizeof(*adsp1_alg) * algs) / 2);
950 		break;
951 
952 	case WMFW_ADSP2:
953 		ret = regmap_raw_read(regmap, mem->base, &adsp2_id,
954 				      sizeof(adsp2_id));
955 		if (ret != 0) {
956 			adsp_err(dsp, "Failed to read algorithm info: %d\n",
957 				 ret);
958 			return ret;
959 		}
960 
961 		buf = &adsp2_id;
962 		buf_size = sizeof(adsp2_id);
963 
964 		algs = be32_to_cpu(adsp2_id.algs);
965 		dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
966 		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
967 			  dsp->fw_id,
968 			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff0000) >> 16,
969 			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff00) >> 8,
970 			  be32_to_cpu(adsp2_id.fw.ver) & 0xff,
971 			  algs);
972 
973 		region = kzalloc(sizeof(*region), GFP_KERNEL);
974 		if (!region)
975 			return -ENOMEM;
976 		region->type = WMFW_ADSP2_XM;
977 		region->alg = be32_to_cpu(adsp2_id.fw.id);
978 		region->base = be32_to_cpu(adsp2_id.xm);
979 		list_add_tail(&region->list, &dsp->alg_regions);
980 
981 		region = kzalloc(sizeof(*region), GFP_KERNEL);
982 		if (!region)
983 			return -ENOMEM;
984 		region->type = WMFW_ADSP2_YM;
985 		region->alg = be32_to_cpu(adsp2_id.fw.id);
986 		region->base = be32_to_cpu(adsp2_id.ym);
987 		list_add_tail(&region->list, &dsp->alg_regions);
988 
989 		region = kzalloc(sizeof(*region), GFP_KERNEL);
990 		if (!region)
991 			return -ENOMEM;
992 		region->type = WMFW_ADSP2_ZM;
993 		region->alg = be32_to_cpu(adsp2_id.fw.id);
994 		region->base = be32_to_cpu(adsp2_id.zm);
995 		list_add_tail(&region->list, &dsp->alg_regions);
996 
997 		pos = sizeof(adsp2_id) / 2;
998 		term = pos + ((sizeof(*adsp2_alg) * algs) / 2);
999 		break;
1000 
1001 	default:
1002 		WARN(1, "Unknown DSP type");
1003 		return -EINVAL;
1004 	}
1005 
1006 	if (algs == 0) {
1007 		adsp_err(dsp, "No algorithms\n");
1008 		return -EINVAL;
1009 	}
1010 
1011 	if (algs > 1024) {
1012 		adsp_err(dsp, "Algorithm count %zx excessive\n", algs);
1013 		print_hex_dump_bytes(dev_name(dsp->dev), DUMP_PREFIX_OFFSET,
1014 				     buf, buf_size);
1015 		return -EINVAL;
1016 	}
1017 
1018 	/* Read the terminator first to validate the length */
1019 	ret = regmap_raw_read(regmap, mem->base + term, &val, sizeof(val));
1020 	if (ret != 0) {
1021 		adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1022 			ret);
1023 		return ret;
1024 	}
1025 
1026 	if (be32_to_cpu(val) != 0xbedead)
1027 		adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1028 			  term, be32_to_cpu(val));
1029 
1030 	alg = kzalloc((term - pos) * 2, GFP_KERNEL | GFP_DMA);
1031 	if (!alg)
1032 		return -ENOMEM;
1033 
1034 	ret = regmap_raw_read(regmap, mem->base + pos, alg, (term - pos) * 2);
1035 	if (ret != 0) {
1036 		adsp_err(dsp, "Failed to read algorithm list: %d\n",
1037 			ret);
1038 		goto out;
1039 	}
1040 
1041 	adsp1_alg = alg;
1042 	adsp2_alg = alg;
1043 
1044 	for (i = 0; i < algs; i++) {
1045 		switch (dsp->type) {
1046 		case WMFW_ADSP1:
1047 			adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1048 				  i, be32_to_cpu(adsp1_alg[i].alg.id),
1049 				  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1050 				  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1051 				  be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1052 				  be32_to_cpu(adsp1_alg[i].dm),
1053 				  be32_to_cpu(adsp1_alg[i].zm));
1054 
1055 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1056 			if (!region) {
1057 				ret = -ENOMEM;
1058 				goto out;
1059 			}
1060 			region->type = WMFW_ADSP1_DM;
1061 			region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
1062 			region->base = be32_to_cpu(adsp1_alg[i].dm);
1063 			region->len = 0;
1064 			list_add_tail(&region->list, &dsp->alg_regions);
1065 			if (i + 1 < algs) {
1066 				region->len = be32_to_cpu(adsp1_alg[i + 1].dm);
1067 				region->len -= be32_to_cpu(adsp1_alg[i].dm);
1068 				region->len *= 4;
1069 				wm_adsp_create_control(dsp, region);
1070 			} else {
1071 				adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1072 					  be32_to_cpu(adsp1_alg[i].alg.id));
1073 			}
1074 
1075 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1076 			if (!region) {
1077 				ret = -ENOMEM;
1078 				goto out;
1079 			}
1080 			region->type = WMFW_ADSP1_ZM;
1081 			region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
1082 			region->base = be32_to_cpu(adsp1_alg[i].zm);
1083 			region->len = 0;
1084 			list_add_tail(&region->list, &dsp->alg_regions);
1085 			if (i + 1 < algs) {
1086 				region->len = be32_to_cpu(adsp1_alg[i + 1].zm);
1087 				region->len -= be32_to_cpu(adsp1_alg[i].zm);
1088 				region->len *= 4;
1089 				wm_adsp_create_control(dsp, region);
1090 			} else {
1091 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1092 					  be32_to_cpu(adsp1_alg[i].alg.id));
1093 			}
1094 			break;
1095 
1096 		case WMFW_ADSP2:
1097 			adsp_info(dsp,
1098 				  "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1099 				  i, be32_to_cpu(adsp2_alg[i].alg.id),
1100 				  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1101 				  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1102 				  be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1103 				  be32_to_cpu(adsp2_alg[i].xm),
1104 				  be32_to_cpu(adsp2_alg[i].ym),
1105 				  be32_to_cpu(adsp2_alg[i].zm));
1106 
1107 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1108 			if (!region) {
1109 				ret = -ENOMEM;
1110 				goto out;
1111 			}
1112 			region->type = WMFW_ADSP2_XM;
1113 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1114 			region->base = be32_to_cpu(adsp2_alg[i].xm);
1115 			region->len = 0;
1116 			list_add_tail(&region->list, &dsp->alg_regions);
1117 			if (i + 1 < algs) {
1118 				region->len = be32_to_cpu(adsp2_alg[i + 1].xm);
1119 				region->len -= be32_to_cpu(adsp2_alg[i].xm);
1120 				region->len *= 4;
1121 				wm_adsp_create_control(dsp, region);
1122 			} else {
1123 				adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1124 					  be32_to_cpu(adsp2_alg[i].alg.id));
1125 			}
1126 
1127 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1128 			if (!region) {
1129 				ret = -ENOMEM;
1130 				goto out;
1131 			}
1132 			region->type = WMFW_ADSP2_YM;
1133 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1134 			region->base = be32_to_cpu(adsp2_alg[i].ym);
1135 			region->len = 0;
1136 			list_add_tail(&region->list, &dsp->alg_regions);
1137 			if (i + 1 < algs) {
1138 				region->len = be32_to_cpu(adsp2_alg[i + 1].ym);
1139 				region->len -= be32_to_cpu(adsp2_alg[i].ym);
1140 				region->len *= 4;
1141 				wm_adsp_create_control(dsp, region);
1142 			} else {
1143 				adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1144 					  be32_to_cpu(adsp2_alg[i].alg.id));
1145 			}
1146 
1147 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1148 			if (!region) {
1149 				ret = -ENOMEM;
1150 				goto out;
1151 			}
1152 			region->type = WMFW_ADSP2_ZM;
1153 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1154 			region->base = be32_to_cpu(adsp2_alg[i].zm);
1155 			region->len = 0;
1156 			list_add_tail(&region->list, &dsp->alg_regions);
1157 			if (i + 1 < algs) {
1158 				region->len = be32_to_cpu(adsp2_alg[i + 1].zm);
1159 				region->len -= be32_to_cpu(adsp2_alg[i].zm);
1160 				region->len *= 4;
1161 				wm_adsp_create_control(dsp, region);
1162 			} else {
1163 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1164 					  be32_to_cpu(adsp2_alg[i].alg.id));
1165 			}
1166 			break;
1167 		}
1168 	}
1169 
1170 out:
1171 	kfree(alg);
1172 	return ret;
1173 }
1174 
1175 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1176 {
1177 	LIST_HEAD(buf_list);
1178 	struct regmap *regmap = dsp->regmap;
1179 	struct wmfw_coeff_hdr *hdr;
1180 	struct wmfw_coeff_item *blk;
1181 	const struct firmware *firmware;
1182 	const struct wm_adsp_region *mem;
1183 	struct wm_adsp_alg_region *alg_region;
1184 	const char *region_name;
1185 	int ret, pos, blocks, type, offset, reg;
1186 	char *file;
1187 	struct wm_adsp_buf *buf;
1188 	int tmp;
1189 
1190 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1191 	if (file == NULL)
1192 		return -ENOMEM;
1193 
1194 	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1195 		 wm_adsp_fw[dsp->fw].file);
1196 	file[PAGE_SIZE - 1] = '\0';
1197 
1198 	ret = request_firmware(&firmware, file, dsp->dev);
1199 	if (ret != 0) {
1200 		adsp_warn(dsp, "Failed to request '%s'\n", file);
1201 		ret = 0;
1202 		goto out;
1203 	}
1204 	ret = -EINVAL;
1205 
1206 	if (sizeof(*hdr) >= firmware->size) {
1207 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
1208 			file, firmware->size);
1209 		goto out_fw;
1210 	}
1211 
1212 	hdr = (void*)&firmware->data[0];
1213 	if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1214 		adsp_err(dsp, "%s: invalid magic\n", file);
1215 		goto out_fw;
1216 	}
1217 
1218 	switch (be32_to_cpu(hdr->rev) & 0xff) {
1219 	case 1:
1220 		break;
1221 	default:
1222 		adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1223 			 file, be32_to_cpu(hdr->rev) & 0xff);
1224 		ret = -EINVAL;
1225 		goto out_fw;
1226 	}
1227 
1228 	adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1229 		(le32_to_cpu(hdr->ver) >> 16) & 0xff,
1230 		(le32_to_cpu(hdr->ver) >>  8) & 0xff,
1231 		le32_to_cpu(hdr->ver) & 0xff);
1232 
1233 	pos = le32_to_cpu(hdr->len);
1234 
1235 	blocks = 0;
1236 	while (pos < firmware->size &&
1237 	       pos - firmware->size > sizeof(*blk)) {
1238 		blk = (void*)(&firmware->data[pos]);
1239 
1240 		type = le16_to_cpu(blk->type);
1241 		offset = le16_to_cpu(blk->offset);
1242 
1243 		adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1244 			 file, blocks, le32_to_cpu(blk->id),
1245 			 (le32_to_cpu(blk->ver) >> 16) & 0xff,
1246 			 (le32_to_cpu(blk->ver) >>  8) & 0xff,
1247 			 le32_to_cpu(blk->ver) & 0xff);
1248 		adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1249 			 file, blocks, le32_to_cpu(blk->len), offset, type);
1250 
1251 		reg = 0;
1252 		region_name = "Unknown";
1253 		switch (type) {
1254 		case (WMFW_NAME_TEXT << 8):
1255 		case (WMFW_INFO_TEXT << 8):
1256 			break;
1257 		case (WMFW_ABSOLUTE << 8):
1258 			/*
1259 			 * Old files may use this for global
1260 			 * coefficients.
1261 			 */
1262 			if (le32_to_cpu(blk->id) == dsp->fw_id &&
1263 			    offset == 0) {
1264 				region_name = "global coefficients";
1265 				mem = wm_adsp_find_region(dsp, type);
1266 				if (!mem) {
1267 					adsp_err(dsp, "No ZM\n");
1268 					break;
1269 				}
1270 				reg = wm_adsp_region_to_reg(mem, 0);
1271 
1272 			} else {
1273 				region_name = "register";
1274 				reg = offset;
1275 			}
1276 			break;
1277 
1278 		case WMFW_ADSP1_DM:
1279 		case WMFW_ADSP1_ZM:
1280 		case WMFW_ADSP2_XM:
1281 		case WMFW_ADSP2_YM:
1282 			adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
1283 				 file, blocks, le32_to_cpu(blk->len),
1284 				 type, le32_to_cpu(blk->id));
1285 
1286 			mem = wm_adsp_find_region(dsp, type);
1287 			if (!mem) {
1288 				adsp_err(dsp, "No base for region %x\n", type);
1289 				break;
1290 			}
1291 
1292 			reg = 0;
1293 			list_for_each_entry(alg_region,
1294 					    &dsp->alg_regions, list) {
1295 				if (le32_to_cpu(blk->id) == alg_region->alg &&
1296 				    type == alg_region->type) {
1297 					reg = alg_region->base;
1298 					reg = wm_adsp_region_to_reg(mem,
1299 								    reg);
1300 					reg += offset;
1301 					break;
1302 				}
1303 			}
1304 
1305 			if (reg == 0)
1306 				adsp_err(dsp, "No %x for algorithm %x\n",
1307 					 type, le32_to_cpu(blk->id));
1308 			break;
1309 
1310 		default:
1311 			adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
1312 				 file, blocks, type, pos);
1313 			break;
1314 		}
1315 
1316 		if (reg) {
1317 			buf = wm_adsp_buf_alloc(blk->data,
1318 						le32_to_cpu(blk->len),
1319 						&buf_list);
1320 			if (!buf) {
1321 				adsp_err(dsp, "Out of memory\n");
1322 				ret = -ENOMEM;
1323 				goto out_fw;
1324 			}
1325 
1326 			adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
1327 				 file, blocks, le32_to_cpu(blk->len),
1328 				 reg);
1329 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
1330 						     le32_to_cpu(blk->len));
1331 			if (ret != 0) {
1332 				adsp_err(dsp,
1333 					"%s.%d: Failed to write to %x in %s: %d\n",
1334 					file, blocks, reg, region_name, ret);
1335 			}
1336 		}
1337 
1338 		tmp = le32_to_cpu(blk->len) % 4;
1339 		if (tmp)
1340 			pos += le32_to_cpu(blk->len) + (4 - tmp) + sizeof(*blk);
1341 		else
1342 			pos += le32_to_cpu(blk->len) + sizeof(*blk);
1343 
1344 		blocks++;
1345 	}
1346 
1347 	ret = regmap_async_complete(regmap);
1348 	if (ret != 0)
1349 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1350 
1351 	if (pos > firmware->size)
1352 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1353 			  file, blocks, pos - firmware->size);
1354 
1355 out_fw:
1356 	regmap_async_complete(regmap);
1357 	release_firmware(firmware);
1358 	wm_adsp_buf_free(&buf_list);
1359 out:
1360 	kfree(file);
1361 	return ret;
1362 }
1363 
1364 int wm_adsp1_init(struct wm_adsp *adsp)
1365 {
1366 	INIT_LIST_HEAD(&adsp->alg_regions);
1367 
1368 	return 0;
1369 }
1370 EXPORT_SYMBOL_GPL(wm_adsp1_init);
1371 
1372 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
1373 		   struct snd_kcontrol *kcontrol,
1374 		   int event)
1375 {
1376 	struct snd_soc_codec *codec = w->codec;
1377 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1378 	struct wm_adsp *dsp = &dsps[w->shift];
1379 	struct wm_adsp_alg_region *alg_region;
1380 	struct wm_coeff_ctl *ctl;
1381 	int ret;
1382 	int val;
1383 
1384 	dsp->card = codec->component.card;
1385 
1386 	switch (event) {
1387 	case SND_SOC_DAPM_POST_PMU:
1388 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1389 				   ADSP1_SYS_ENA, ADSP1_SYS_ENA);
1390 
1391 		/*
1392 		 * For simplicity set the DSP clock rate to be the
1393 		 * SYSCLK rate rather than making it configurable.
1394 		 */
1395 		if(dsp->sysclk_reg) {
1396 			ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
1397 			if (ret != 0) {
1398 				adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
1399 				ret);
1400 				return ret;
1401 			}
1402 
1403 			val = (val & dsp->sysclk_mask)
1404 				>> dsp->sysclk_shift;
1405 
1406 			ret = regmap_update_bits(dsp->regmap,
1407 						 dsp->base + ADSP1_CONTROL_31,
1408 						 ADSP1_CLK_SEL_MASK, val);
1409 			if (ret != 0) {
1410 				adsp_err(dsp, "Failed to set clock rate: %d\n",
1411 					 ret);
1412 				return ret;
1413 			}
1414 		}
1415 
1416 		ret = wm_adsp_load(dsp);
1417 		if (ret != 0)
1418 			goto err;
1419 
1420 		ret = wm_adsp_setup_algs(dsp);
1421 		if (ret != 0)
1422 			goto err;
1423 
1424 		ret = wm_adsp_load_coeff(dsp);
1425 		if (ret != 0)
1426 			goto err;
1427 
1428 		/* Initialize caches for enabled and unset controls */
1429 		ret = wm_coeff_init_control_caches(dsp);
1430 		if (ret != 0)
1431 			goto err;
1432 
1433 		/* Sync set controls */
1434 		ret = wm_coeff_sync_controls(dsp);
1435 		if (ret != 0)
1436 			goto err;
1437 
1438 		/* Start the core running */
1439 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1440 				   ADSP1_CORE_ENA | ADSP1_START,
1441 				   ADSP1_CORE_ENA | ADSP1_START);
1442 		break;
1443 
1444 	case SND_SOC_DAPM_PRE_PMD:
1445 		/* Halt the core */
1446 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1447 				   ADSP1_CORE_ENA | ADSP1_START, 0);
1448 
1449 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
1450 				   ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
1451 
1452 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1453 				   ADSP1_SYS_ENA, 0);
1454 
1455 		list_for_each_entry(ctl, &dsp->ctl_list, list)
1456 			ctl->enabled = 0;
1457 
1458 		while (!list_empty(&dsp->alg_regions)) {
1459 			alg_region = list_first_entry(&dsp->alg_regions,
1460 						      struct wm_adsp_alg_region,
1461 						      list);
1462 			list_del(&alg_region->list);
1463 			kfree(alg_region);
1464 		}
1465 		break;
1466 
1467 	default:
1468 		break;
1469 	}
1470 
1471 	return 0;
1472 
1473 err:
1474 	regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1475 			   ADSP1_SYS_ENA, 0);
1476 	return ret;
1477 }
1478 EXPORT_SYMBOL_GPL(wm_adsp1_event);
1479 
1480 static int wm_adsp2_ena(struct wm_adsp *dsp)
1481 {
1482 	unsigned int val;
1483 	int ret, count;
1484 
1485 	ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
1486 				       ADSP2_SYS_ENA, ADSP2_SYS_ENA);
1487 	if (ret != 0)
1488 		return ret;
1489 
1490 	/* Wait for the RAM to start, should be near instantaneous */
1491 	for (count = 0; count < 10; ++count) {
1492 		ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1,
1493 				  &val);
1494 		if (ret != 0)
1495 			return ret;
1496 
1497 		if (val & ADSP2_RAM_RDY)
1498 			break;
1499 
1500 		msleep(1);
1501 	}
1502 
1503 	if (!(val & ADSP2_RAM_RDY)) {
1504 		adsp_err(dsp, "Failed to start DSP RAM\n");
1505 		return -EBUSY;
1506 	}
1507 
1508 	adsp_dbg(dsp, "RAM ready after %d polls\n", count);
1509 
1510 	return 0;
1511 }
1512 
1513 static void wm_adsp2_boot_work(struct work_struct *work)
1514 {
1515 	struct wm_adsp *dsp = container_of(work,
1516 					   struct wm_adsp,
1517 					   boot_work);
1518 	int ret;
1519 	unsigned int val;
1520 
1521 	/*
1522 	 * For simplicity set the DSP clock rate to be the
1523 	 * SYSCLK rate rather than making it configurable.
1524 	 */
1525 	ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
1526 	if (ret != 0) {
1527 		adsp_err(dsp, "Failed to read SYSCLK state: %d\n", ret);
1528 		return;
1529 	}
1530 	val = (val & ARIZONA_SYSCLK_FREQ_MASK)
1531 		>> ARIZONA_SYSCLK_FREQ_SHIFT;
1532 
1533 	ret = regmap_update_bits_async(dsp->regmap,
1534 				       dsp->base + ADSP2_CLOCKING,
1535 				       ADSP2_CLK_SEL_MASK, val);
1536 	if (ret != 0) {
1537 		adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
1538 		return;
1539 	}
1540 
1541 	if (dsp->dvfs) {
1542 		ret = regmap_read(dsp->regmap,
1543 				  dsp->base + ADSP2_CLOCKING, &val);
1544 		if (ret != 0) {
1545 			adsp_err(dsp, "Failed to read clocking: %d\n", ret);
1546 			return;
1547 		}
1548 
1549 		if ((val & ADSP2_CLK_SEL_MASK) >= 3) {
1550 			ret = regulator_enable(dsp->dvfs);
1551 			if (ret != 0) {
1552 				adsp_err(dsp,
1553 					 "Failed to enable supply: %d\n",
1554 					 ret);
1555 				return;
1556 			}
1557 
1558 			ret = regulator_set_voltage(dsp->dvfs,
1559 						    1800000,
1560 						    1800000);
1561 			if (ret != 0) {
1562 				adsp_err(dsp,
1563 					 "Failed to raise supply: %d\n",
1564 					 ret);
1565 				return;
1566 			}
1567 		}
1568 	}
1569 
1570 	ret = wm_adsp2_ena(dsp);
1571 	if (ret != 0)
1572 		return;
1573 
1574 	ret = wm_adsp_load(dsp);
1575 	if (ret != 0)
1576 		goto err;
1577 
1578 	ret = wm_adsp_setup_algs(dsp);
1579 	if (ret != 0)
1580 		goto err;
1581 
1582 	ret = wm_adsp_load_coeff(dsp);
1583 	if (ret != 0)
1584 		goto err;
1585 
1586 	/* Initialize caches for enabled and unset controls */
1587 	ret = wm_coeff_init_control_caches(dsp);
1588 	if (ret != 0)
1589 		goto err;
1590 
1591 	/* Sync set controls */
1592 	ret = wm_coeff_sync_controls(dsp);
1593 	if (ret != 0)
1594 		goto err;
1595 
1596 	dsp->running = true;
1597 
1598 	return;
1599 
1600 err:
1601 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1602 			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
1603 }
1604 
1605 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
1606 		   struct snd_kcontrol *kcontrol, int event)
1607 {
1608 	struct snd_soc_codec *codec = w->codec;
1609 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1610 	struct wm_adsp *dsp = &dsps[w->shift];
1611 
1612 	dsp->card = codec->component.card;
1613 
1614 	switch (event) {
1615 	case SND_SOC_DAPM_PRE_PMU:
1616 		queue_work(system_unbound_wq, &dsp->boot_work);
1617 		break;
1618 	default:
1619 		break;
1620 	}
1621 
1622 	return 0;
1623 }
1624 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
1625 
1626 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
1627 		   struct snd_kcontrol *kcontrol, int event)
1628 {
1629 	struct snd_soc_codec *codec = w->codec;
1630 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1631 	struct wm_adsp *dsp = &dsps[w->shift];
1632 	struct wm_adsp_alg_region *alg_region;
1633 	struct wm_coeff_ctl *ctl;
1634 	int ret;
1635 
1636 	switch (event) {
1637 	case SND_SOC_DAPM_POST_PMU:
1638 		flush_work(&dsp->boot_work);
1639 
1640 		if (!dsp->running)
1641 			return -EIO;
1642 
1643 		ret = regmap_update_bits(dsp->regmap,
1644 					 dsp->base + ADSP2_CONTROL,
1645 					 ADSP2_CORE_ENA | ADSP2_START,
1646 					 ADSP2_CORE_ENA | ADSP2_START);
1647 		if (ret != 0)
1648 			goto err;
1649 		break;
1650 
1651 	case SND_SOC_DAPM_PRE_PMD:
1652 		dsp->running = false;
1653 
1654 		regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1655 				   ADSP2_SYS_ENA | ADSP2_CORE_ENA |
1656 				   ADSP2_START, 0);
1657 
1658 		/* Make sure DMAs are quiesced */
1659 		regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
1660 		regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
1661 		regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
1662 
1663 		if (dsp->dvfs) {
1664 			ret = regulator_set_voltage(dsp->dvfs, 1200000,
1665 						    1800000);
1666 			if (ret != 0)
1667 				adsp_warn(dsp,
1668 					  "Failed to lower supply: %d\n",
1669 					  ret);
1670 
1671 			ret = regulator_disable(dsp->dvfs);
1672 			if (ret != 0)
1673 				adsp_err(dsp,
1674 					 "Failed to enable supply: %d\n",
1675 					 ret);
1676 		}
1677 
1678 		list_for_each_entry(ctl, &dsp->ctl_list, list)
1679 			ctl->enabled = 0;
1680 
1681 		while (!list_empty(&dsp->alg_regions)) {
1682 			alg_region = list_first_entry(&dsp->alg_regions,
1683 						      struct wm_adsp_alg_region,
1684 						      list);
1685 			list_del(&alg_region->list);
1686 			kfree(alg_region);
1687 		}
1688 
1689 		adsp_dbg(dsp, "Shutdown complete\n");
1690 		break;
1691 
1692 	default:
1693 		break;
1694 	}
1695 
1696 	return 0;
1697 err:
1698 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1699 			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
1700 	return ret;
1701 }
1702 EXPORT_SYMBOL_GPL(wm_adsp2_event);
1703 
1704 int wm_adsp2_init(struct wm_adsp *adsp, bool dvfs)
1705 {
1706 	int ret;
1707 
1708 	/*
1709 	 * Disable the DSP memory by default when in reset for a small
1710 	 * power saving.
1711 	 */
1712 	ret = regmap_update_bits(adsp->regmap, adsp->base + ADSP2_CONTROL,
1713 				 ADSP2_MEM_ENA, 0);
1714 	if (ret != 0) {
1715 		adsp_err(adsp, "Failed to clear memory retention: %d\n", ret);
1716 		return ret;
1717 	}
1718 
1719 	INIT_LIST_HEAD(&adsp->alg_regions);
1720 	INIT_LIST_HEAD(&adsp->ctl_list);
1721 	INIT_WORK(&adsp->boot_work, wm_adsp2_boot_work);
1722 
1723 	if (dvfs) {
1724 		adsp->dvfs = devm_regulator_get(adsp->dev, "DCVDD");
1725 		if (IS_ERR(adsp->dvfs)) {
1726 			ret = PTR_ERR(adsp->dvfs);
1727 			adsp_err(adsp, "Failed to get DCVDD: %d\n", ret);
1728 			return ret;
1729 		}
1730 
1731 		ret = regulator_enable(adsp->dvfs);
1732 		if (ret != 0) {
1733 			adsp_err(adsp, "Failed to enable DCVDD: %d\n", ret);
1734 			return ret;
1735 		}
1736 
1737 		ret = regulator_set_voltage(adsp->dvfs, 1200000, 1800000);
1738 		if (ret != 0) {
1739 			adsp_err(adsp, "Failed to initialise DVFS: %d\n", ret);
1740 			return ret;
1741 		}
1742 
1743 		ret = regulator_disable(adsp->dvfs);
1744 		if (ret != 0) {
1745 			adsp_err(adsp, "Failed to disable DCVDD: %d\n", ret);
1746 			return ret;
1747 		}
1748 	}
1749 
1750 	return 0;
1751 }
1752 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1753 
1754 MODULE_LICENSE("GPL v2");
1755