xref: /openbmc/linux/sound/soc/codecs/wm_adsp.c (revision d0bd7f2a)
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 	ctl->set = 1;
424 	if (!ctl->enabled)
425 		return 0;
426 
427 	return wm_coeff_write_control(kcontrol, p, ctl->len);
428 }
429 
430 static int wm_coeff_read_control(struct snd_kcontrol *kcontrol,
431 				 void *buf, size_t len)
432 {
433 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
434 	struct wm_adsp_alg_region *region = &ctl->region;
435 	const struct wm_adsp_region *mem;
436 	struct wm_adsp *adsp = ctl->adsp;
437 	void *scratch;
438 	int ret;
439 	unsigned int reg;
440 
441 	mem = wm_adsp_find_region(adsp, region->type);
442 	if (!mem) {
443 		adsp_err(adsp, "No base for region %x\n",
444 			 region->type);
445 		return -EINVAL;
446 	}
447 
448 	reg = ctl->region.base;
449 	reg = wm_adsp_region_to_reg(mem, reg);
450 
451 	scratch = kmalloc(ctl->len, GFP_KERNEL | GFP_DMA);
452 	if (!scratch)
453 		return -ENOMEM;
454 
455 	ret = regmap_raw_read(adsp->regmap, reg, scratch, ctl->len);
456 	if (ret) {
457 		adsp_err(adsp, "Failed to read %zu bytes from %x: %d\n",
458 			 ctl->len, reg, ret);
459 		kfree(scratch);
460 		return ret;
461 	}
462 	adsp_dbg(adsp, "Read %zu bytes from %x\n", ctl->len, reg);
463 
464 	memcpy(buf, scratch, ctl->len);
465 	kfree(scratch);
466 
467 	return 0;
468 }
469 
470 static int wm_coeff_get(struct snd_kcontrol *kcontrol,
471 			struct snd_ctl_elem_value *ucontrol)
472 {
473 	struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kcontrol->private_value;
474 	char *p = ucontrol->value.bytes.data;
475 
476 	memcpy(p, ctl->cache, ctl->len);
477 	return 0;
478 }
479 
480 struct wmfw_ctl_work {
481 	struct wm_adsp *adsp;
482 	struct wm_coeff_ctl *ctl;
483 	struct work_struct work;
484 };
485 
486 static int wmfw_add_ctl(struct wm_adsp *adsp, struct wm_coeff_ctl *ctl)
487 {
488 	struct snd_kcontrol_new *kcontrol;
489 	int ret;
490 
491 	if (!ctl || !ctl->name)
492 		return -EINVAL;
493 
494 	kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
495 	if (!kcontrol)
496 		return -ENOMEM;
497 	kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
498 
499 	kcontrol->name = ctl->name;
500 	kcontrol->info = wm_coeff_info;
501 	kcontrol->get = wm_coeff_get;
502 	kcontrol->put = wm_coeff_put;
503 	kcontrol->private_value = (unsigned long)ctl;
504 
505 	ret = snd_soc_add_card_controls(adsp->card,
506 					kcontrol, 1);
507 	if (ret < 0)
508 		goto err_kcontrol;
509 
510 	kfree(kcontrol);
511 
512 	ctl->kcontrol = snd_soc_card_get_kcontrol(adsp->card,
513 						  ctl->name);
514 
515 	list_add(&ctl->list, &adsp->ctl_list);
516 	return 0;
517 
518 err_kcontrol:
519 	kfree(kcontrol);
520 	return ret;
521 }
522 
523 static int wm_adsp_load(struct wm_adsp *dsp)
524 {
525 	LIST_HEAD(buf_list);
526 	const struct firmware *firmware;
527 	struct regmap *regmap = dsp->regmap;
528 	unsigned int pos = 0;
529 	const struct wmfw_header *header;
530 	const struct wmfw_adsp1_sizes *adsp1_sizes;
531 	const struct wmfw_adsp2_sizes *adsp2_sizes;
532 	const struct wmfw_footer *footer;
533 	const struct wmfw_region *region;
534 	const struct wm_adsp_region *mem;
535 	const char *region_name;
536 	char *file, *text;
537 	struct wm_adsp_buf *buf;
538 	unsigned int reg;
539 	int regions = 0;
540 	int ret, offset, type, sizes;
541 
542 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
543 	if (file == NULL)
544 		return -ENOMEM;
545 
546 	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
547 		 wm_adsp_fw[dsp->fw].file);
548 	file[PAGE_SIZE - 1] = '\0';
549 
550 	ret = request_firmware(&firmware, file, dsp->dev);
551 	if (ret != 0) {
552 		adsp_err(dsp, "Failed to request '%s'\n", file);
553 		goto out;
554 	}
555 	ret = -EINVAL;
556 
557 	pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
558 	if (pos >= firmware->size) {
559 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
560 			 file, firmware->size);
561 		goto out_fw;
562 	}
563 
564 	header = (void*)&firmware->data[0];
565 
566 	if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
567 		adsp_err(dsp, "%s: invalid magic\n", file);
568 		goto out_fw;
569 	}
570 
571 	if (header->ver != 0) {
572 		adsp_err(dsp, "%s: unknown file format %d\n",
573 			 file, header->ver);
574 		goto out_fw;
575 	}
576 	adsp_info(dsp, "Firmware version: %d\n", header->ver);
577 
578 	if (header->core != dsp->type) {
579 		adsp_err(dsp, "%s: invalid core %d != %d\n",
580 			 file, header->core, dsp->type);
581 		goto out_fw;
582 	}
583 
584 	switch (dsp->type) {
585 	case WMFW_ADSP1:
586 		pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
587 		adsp1_sizes = (void *)&(header[1]);
588 		footer = (void *)&(adsp1_sizes[1]);
589 		sizes = sizeof(*adsp1_sizes);
590 
591 		adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
592 			 file, le32_to_cpu(adsp1_sizes->dm),
593 			 le32_to_cpu(adsp1_sizes->pm),
594 			 le32_to_cpu(adsp1_sizes->zm));
595 		break;
596 
597 	case WMFW_ADSP2:
598 		pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
599 		adsp2_sizes = (void *)&(header[1]);
600 		footer = (void *)&(adsp2_sizes[1]);
601 		sizes = sizeof(*adsp2_sizes);
602 
603 		adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
604 			 file, le32_to_cpu(adsp2_sizes->xm),
605 			 le32_to_cpu(adsp2_sizes->ym),
606 			 le32_to_cpu(adsp2_sizes->pm),
607 			 le32_to_cpu(adsp2_sizes->zm));
608 		break;
609 
610 	default:
611 		WARN(1, "Unknown DSP type");
612 		goto out_fw;
613 	}
614 
615 	if (le32_to_cpu(header->len) != sizeof(*header) +
616 	    sizes + sizeof(*footer)) {
617 		adsp_err(dsp, "%s: unexpected header length %d\n",
618 			 file, le32_to_cpu(header->len));
619 		goto out_fw;
620 	}
621 
622 	adsp_dbg(dsp, "%s: timestamp %llu\n", file,
623 		 le64_to_cpu(footer->timestamp));
624 
625 	while (pos < firmware->size &&
626 	       pos - firmware->size > sizeof(*region)) {
627 		region = (void *)&(firmware->data[pos]);
628 		region_name = "Unknown";
629 		reg = 0;
630 		text = NULL;
631 		offset = le32_to_cpu(region->offset) & 0xffffff;
632 		type = be32_to_cpu(region->type) & 0xff;
633 		mem = wm_adsp_find_region(dsp, type);
634 
635 		switch (type) {
636 		case WMFW_NAME_TEXT:
637 			region_name = "Firmware name";
638 			text = kzalloc(le32_to_cpu(region->len) + 1,
639 				       GFP_KERNEL);
640 			break;
641 		case WMFW_INFO_TEXT:
642 			region_name = "Information";
643 			text = kzalloc(le32_to_cpu(region->len) + 1,
644 				       GFP_KERNEL);
645 			break;
646 		case WMFW_ABSOLUTE:
647 			region_name = "Absolute";
648 			reg = offset;
649 			break;
650 		case WMFW_ADSP1_PM:
651 			region_name = "PM";
652 			reg = wm_adsp_region_to_reg(mem, offset);
653 			break;
654 		case WMFW_ADSP1_DM:
655 			region_name = "DM";
656 			reg = wm_adsp_region_to_reg(mem, offset);
657 			break;
658 		case WMFW_ADSP2_XM:
659 			region_name = "XM";
660 			reg = wm_adsp_region_to_reg(mem, offset);
661 			break;
662 		case WMFW_ADSP2_YM:
663 			region_name = "YM";
664 			reg = wm_adsp_region_to_reg(mem, offset);
665 			break;
666 		case WMFW_ADSP1_ZM:
667 			region_name = "ZM";
668 			reg = wm_adsp_region_to_reg(mem, offset);
669 			break;
670 		default:
671 			adsp_warn(dsp,
672 				  "%s.%d: Unknown region type %x at %d(%x)\n",
673 				  file, regions, type, pos, pos);
674 			break;
675 		}
676 
677 		adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
678 			 regions, le32_to_cpu(region->len), offset,
679 			 region_name);
680 
681 		if (text) {
682 			memcpy(text, region->data, le32_to_cpu(region->len));
683 			adsp_info(dsp, "%s: %s\n", file, text);
684 			kfree(text);
685 		}
686 
687 		if (reg) {
688 			buf = wm_adsp_buf_alloc(region->data,
689 						le32_to_cpu(region->len),
690 						&buf_list);
691 			if (!buf) {
692 				adsp_err(dsp, "Out of memory\n");
693 				ret = -ENOMEM;
694 				goto out_fw;
695 			}
696 
697 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
698 						     le32_to_cpu(region->len));
699 			if (ret != 0) {
700 				adsp_err(dsp,
701 					"%s.%d: Failed to write %d bytes at %d in %s: %d\n",
702 					file, regions,
703 					le32_to_cpu(region->len), offset,
704 					region_name, ret);
705 				goto out_fw;
706 			}
707 		}
708 
709 		pos += le32_to_cpu(region->len) + sizeof(*region);
710 		regions++;
711 	}
712 
713 	ret = regmap_async_complete(regmap);
714 	if (ret != 0) {
715 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
716 		goto out_fw;
717 	}
718 
719 	if (pos > firmware->size)
720 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
721 			  file, regions, pos - firmware->size);
722 
723 out_fw:
724 	regmap_async_complete(regmap);
725 	wm_adsp_buf_free(&buf_list);
726 	release_firmware(firmware);
727 out:
728 	kfree(file);
729 
730 	return ret;
731 }
732 
733 static int wm_coeff_init_control_caches(struct wm_adsp *adsp)
734 {
735 	struct wm_coeff_ctl *ctl;
736 	int ret;
737 
738 	list_for_each_entry(ctl, &adsp->ctl_list, list) {
739 		if (!ctl->enabled || ctl->set)
740 			continue;
741 		ret = wm_coeff_read_control(ctl->kcontrol,
742 					    ctl->cache,
743 					    ctl->len);
744 		if (ret < 0)
745 			return ret;
746 	}
747 
748 	return 0;
749 }
750 
751 static int wm_coeff_sync_controls(struct wm_adsp *adsp)
752 {
753 	struct wm_coeff_ctl *ctl;
754 	int ret;
755 
756 	list_for_each_entry(ctl, &adsp->ctl_list, list) {
757 		if (!ctl->enabled)
758 			continue;
759 		if (ctl->set) {
760 			ret = wm_coeff_write_control(ctl->kcontrol,
761 						     ctl->cache,
762 						     ctl->len);
763 			if (ret < 0)
764 				return ret;
765 		}
766 	}
767 
768 	return 0;
769 }
770 
771 static void wm_adsp_ctl_work(struct work_struct *work)
772 {
773 	struct wmfw_ctl_work *ctl_work = container_of(work,
774 						      struct wmfw_ctl_work,
775 						      work);
776 
777 	wmfw_add_ctl(ctl_work->adsp, ctl_work->ctl);
778 	kfree(ctl_work);
779 }
780 
781 static int wm_adsp_create_control(struct wm_adsp *dsp,
782 				  const struct wm_adsp_alg_region *region)
783 
784 {
785 	struct wm_coeff_ctl *ctl;
786 	struct wmfw_ctl_work *ctl_work;
787 	char *name;
788 	char *region_name;
789 	int ret;
790 
791 	name = kmalloc(PAGE_SIZE, GFP_KERNEL);
792 	if (!name)
793 		return -ENOMEM;
794 
795 	switch (region->type) {
796 	case WMFW_ADSP1_PM:
797 		region_name = "PM";
798 		break;
799 	case WMFW_ADSP1_DM:
800 		region_name = "DM";
801 		break;
802 	case WMFW_ADSP2_XM:
803 		region_name = "XM";
804 		break;
805 	case WMFW_ADSP2_YM:
806 		region_name = "YM";
807 		break;
808 	case WMFW_ADSP1_ZM:
809 		region_name = "ZM";
810 		break;
811 	default:
812 		ret = -EINVAL;
813 		goto err_name;
814 	}
815 
816 	snprintf(name, PAGE_SIZE, "DSP%d %s %x",
817 		 dsp->num, region_name, region->alg);
818 
819 	list_for_each_entry(ctl, &dsp->ctl_list,
820 			    list) {
821 		if (!strcmp(ctl->name, name)) {
822 			if (!ctl->enabled)
823 				ctl->enabled = 1;
824 			goto found;
825 		}
826 	}
827 
828 	ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
829 	if (!ctl) {
830 		ret = -ENOMEM;
831 		goto err_name;
832 	}
833 	ctl->region = *region;
834 	ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
835 	if (!ctl->name) {
836 		ret = -ENOMEM;
837 		goto err_ctl;
838 	}
839 	ctl->enabled = 1;
840 	ctl->set = 0;
841 	ctl->ops.xget = wm_coeff_get;
842 	ctl->ops.xput = wm_coeff_put;
843 	ctl->adsp = dsp;
844 
845 	ctl->len = region->len;
846 	ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
847 	if (!ctl->cache) {
848 		ret = -ENOMEM;
849 		goto err_ctl_name;
850 	}
851 
852 	ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
853 	if (!ctl_work) {
854 		ret = -ENOMEM;
855 		goto err_ctl_cache;
856 	}
857 
858 	ctl_work->adsp = dsp;
859 	ctl_work->ctl = ctl;
860 	INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
861 	schedule_work(&ctl_work->work);
862 
863 found:
864 	kfree(name);
865 
866 	return 0;
867 
868 err_ctl_cache:
869 	kfree(ctl->cache);
870 err_ctl_name:
871 	kfree(ctl->name);
872 err_ctl:
873 	kfree(ctl);
874 err_name:
875 	kfree(name);
876 	return ret;
877 }
878 
879 static int wm_adsp_setup_algs(struct wm_adsp *dsp)
880 {
881 	struct regmap *regmap = dsp->regmap;
882 	struct wmfw_adsp1_id_hdr adsp1_id;
883 	struct wmfw_adsp2_id_hdr adsp2_id;
884 	struct wmfw_adsp1_alg_hdr *adsp1_alg;
885 	struct wmfw_adsp2_alg_hdr *adsp2_alg;
886 	void *alg, *buf;
887 	struct wm_adsp_alg_region *region;
888 	const struct wm_adsp_region *mem;
889 	unsigned int pos, term;
890 	size_t algs, buf_size;
891 	__be32 val;
892 	int i, ret;
893 
894 	switch (dsp->type) {
895 	case WMFW_ADSP1:
896 		mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
897 		break;
898 	case WMFW_ADSP2:
899 		mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
900 		break;
901 	default:
902 		mem = NULL;
903 		break;
904 	}
905 
906 	if (WARN_ON(!mem))
907 		return -EINVAL;
908 
909 	switch (dsp->type) {
910 	case WMFW_ADSP1:
911 		ret = regmap_raw_read(regmap, mem->base, &adsp1_id,
912 				      sizeof(adsp1_id));
913 		if (ret != 0) {
914 			adsp_err(dsp, "Failed to read algorithm info: %d\n",
915 				 ret);
916 			return ret;
917 		}
918 
919 		buf = &adsp1_id;
920 		buf_size = sizeof(adsp1_id);
921 
922 		algs = be32_to_cpu(adsp1_id.algs);
923 		dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
924 		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
925 			  dsp->fw_id,
926 			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
927 			  (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
928 			  be32_to_cpu(adsp1_id.fw.ver) & 0xff,
929 			  algs);
930 
931 		region = kzalloc(sizeof(*region), GFP_KERNEL);
932 		if (!region)
933 			return -ENOMEM;
934 		region->type = WMFW_ADSP1_ZM;
935 		region->alg = be32_to_cpu(adsp1_id.fw.id);
936 		region->base = be32_to_cpu(adsp1_id.zm);
937 		list_add_tail(&region->list, &dsp->alg_regions);
938 
939 		region = kzalloc(sizeof(*region), GFP_KERNEL);
940 		if (!region)
941 			return -ENOMEM;
942 		region->type = WMFW_ADSP1_DM;
943 		region->alg = be32_to_cpu(adsp1_id.fw.id);
944 		region->base = be32_to_cpu(adsp1_id.dm);
945 		list_add_tail(&region->list, &dsp->alg_regions);
946 
947 		pos = sizeof(adsp1_id) / 2;
948 		term = pos + ((sizeof(*adsp1_alg) * algs) / 2);
949 		break;
950 
951 	case WMFW_ADSP2:
952 		ret = regmap_raw_read(regmap, mem->base, &adsp2_id,
953 				      sizeof(adsp2_id));
954 		if (ret != 0) {
955 			adsp_err(dsp, "Failed to read algorithm info: %d\n",
956 				 ret);
957 			return ret;
958 		}
959 
960 		buf = &adsp2_id;
961 		buf_size = sizeof(adsp2_id);
962 
963 		algs = be32_to_cpu(adsp2_id.algs);
964 		dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
965 		adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
966 			  dsp->fw_id,
967 			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff0000) >> 16,
968 			  (be32_to_cpu(adsp2_id.fw.ver) & 0xff00) >> 8,
969 			  be32_to_cpu(adsp2_id.fw.ver) & 0xff,
970 			  algs);
971 
972 		region = kzalloc(sizeof(*region), GFP_KERNEL);
973 		if (!region)
974 			return -ENOMEM;
975 		region->type = WMFW_ADSP2_XM;
976 		region->alg = be32_to_cpu(adsp2_id.fw.id);
977 		region->base = be32_to_cpu(adsp2_id.xm);
978 		list_add_tail(&region->list, &dsp->alg_regions);
979 
980 		region = kzalloc(sizeof(*region), GFP_KERNEL);
981 		if (!region)
982 			return -ENOMEM;
983 		region->type = WMFW_ADSP2_YM;
984 		region->alg = be32_to_cpu(adsp2_id.fw.id);
985 		region->base = be32_to_cpu(adsp2_id.ym);
986 		list_add_tail(&region->list, &dsp->alg_regions);
987 
988 		region = kzalloc(sizeof(*region), GFP_KERNEL);
989 		if (!region)
990 			return -ENOMEM;
991 		region->type = WMFW_ADSP2_ZM;
992 		region->alg = be32_to_cpu(adsp2_id.fw.id);
993 		region->base = be32_to_cpu(adsp2_id.zm);
994 		list_add_tail(&region->list, &dsp->alg_regions);
995 
996 		pos = sizeof(adsp2_id) / 2;
997 		term = pos + ((sizeof(*adsp2_alg) * algs) / 2);
998 		break;
999 
1000 	default:
1001 		WARN(1, "Unknown DSP type");
1002 		return -EINVAL;
1003 	}
1004 
1005 	if (algs == 0) {
1006 		adsp_err(dsp, "No algorithms\n");
1007 		return -EINVAL;
1008 	}
1009 
1010 	if (algs > 1024) {
1011 		adsp_err(dsp, "Algorithm count %zx excessive\n", algs);
1012 		print_hex_dump_bytes(dev_name(dsp->dev), DUMP_PREFIX_OFFSET,
1013 				     buf, buf_size);
1014 		return -EINVAL;
1015 	}
1016 
1017 	/* Read the terminator first to validate the length */
1018 	ret = regmap_raw_read(regmap, mem->base + term, &val, sizeof(val));
1019 	if (ret != 0) {
1020 		adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1021 			ret);
1022 		return ret;
1023 	}
1024 
1025 	if (be32_to_cpu(val) != 0xbedead)
1026 		adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1027 			  term, be32_to_cpu(val));
1028 
1029 	alg = kzalloc((term - pos) * 2, GFP_KERNEL | GFP_DMA);
1030 	if (!alg)
1031 		return -ENOMEM;
1032 
1033 	ret = regmap_raw_read(regmap, mem->base + pos, alg, (term - pos) * 2);
1034 	if (ret != 0) {
1035 		adsp_err(dsp, "Failed to read algorithm list: %d\n",
1036 			ret);
1037 		goto out;
1038 	}
1039 
1040 	adsp1_alg = alg;
1041 	adsp2_alg = alg;
1042 
1043 	for (i = 0; i < algs; i++) {
1044 		switch (dsp->type) {
1045 		case WMFW_ADSP1:
1046 			adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1047 				  i, be32_to_cpu(adsp1_alg[i].alg.id),
1048 				  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1049 				  (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1050 				  be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1051 				  be32_to_cpu(adsp1_alg[i].dm),
1052 				  be32_to_cpu(adsp1_alg[i].zm));
1053 
1054 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1055 			if (!region) {
1056 				ret = -ENOMEM;
1057 				goto out;
1058 			}
1059 			region->type = WMFW_ADSP1_DM;
1060 			region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
1061 			region->base = be32_to_cpu(adsp1_alg[i].dm);
1062 			region->len = 0;
1063 			list_add_tail(&region->list, &dsp->alg_regions);
1064 			if (i + 1 < algs) {
1065 				region->len = be32_to_cpu(adsp1_alg[i + 1].dm);
1066 				region->len -= be32_to_cpu(adsp1_alg[i].dm);
1067 				region->len *= 4;
1068 				wm_adsp_create_control(dsp, region);
1069 			} else {
1070 				adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1071 					  be32_to_cpu(adsp1_alg[i].alg.id));
1072 			}
1073 
1074 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1075 			if (!region) {
1076 				ret = -ENOMEM;
1077 				goto out;
1078 			}
1079 			region->type = WMFW_ADSP1_ZM;
1080 			region->alg = be32_to_cpu(adsp1_alg[i].alg.id);
1081 			region->base = be32_to_cpu(adsp1_alg[i].zm);
1082 			region->len = 0;
1083 			list_add_tail(&region->list, &dsp->alg_regions);
1084 			if (i + 1 < algs) {
1085 				region->len = be32_to_cpu(adsp1_alg[i + 1].zm);
1086 				region->len -= be32_to_cpu(adsp1_alg[i].zm);
1087 				region->len *= 4;
1088 				wm_adsp_create_control(dsp, region);
1089 			} else {
1090 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1091 					  be32_to_cpu(adsp1_alg[i].alg.id));
1092 			}
1093 			break;
1094 
1095 		case WMFW_ADSP2:
1096 			adsp_info(dsp,
1097 				  "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1098 				  i, be32_to_cpu(adsp2_alg[i].alg.id),
1099 				  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1100 				  (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1101 				  be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1102 				  be32_to_cpu(adsp2_alg[i].xm),
1103 				  be32_to_cpu(adsp2_alg[i].ym),
1104 				  be32_to_cpu(adsp2_alg[i].zm));
1105 
1106 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1107 			if (!region) {
1108 				ret = -ENOMEM;
1109 				goto out;
1110 			}
1111 			region->type = WMFW_ADSP2_XM;
1112 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1113 			region->base = be32_to_cpu(adsp2_alg[i].xm);
1114 			region->len = 0;
1115 			list_add_tail(&region->list, &dsp->alg_regions);
1116 			if (i + 1 < algs) {
1117 				region->len = be32_to_cpu(adsp2_alg[i + 1].xm);
1118 				region->len -= be32_to_cpu(adsp2_alg[i].xm);
1119 				region->len *= 4;
1120 				wm_adsp_create_control(dsp, region);
1121 			} else {
1122 				adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1123 					  be32_to_cpu(adsp2_alg[i].alg.id));
1124 			}
1125 
1126 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1127 			if (!region) {
1128 				ret = -ENOMEM;
1129 				goto out;
1130 			}
1131 			region->type = WMFW_ADSP2_YM;
1132 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1133 			region->base = be32_to_cpu(adsp2_alg[i].ym);
1134 			region->len = 0;
1135 			list_add_tail(&region->list, &dsp->alg_regions);
1136 			if (i + 1 < algs) {
1137 				region->len = be32_to_cpu(adsp2_alg[i + 1].ym);
1138 				region->len -= be32_to_cpu(adsp2_alg[i].ym);
1139 				region->len *= 4;
1140 				wm_adsp_create_control(dsp, region);
1141 			} else {
1142 				adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1143 					  be32_to_cpu(adsp2_alg[i].alg.id));
1144 			}
1145 
1146 			region = kzalloc(sizeof(*region), GFP_KERNEL);
1147 			if (!region) {
1148 				ret = -ENOMEM;
1149 				goto out;
1150 			}
1151 			region->type = WMFW_ADSP2_ZM;
1152 			region->alg = be32_to_cpu(adsp2_alg[i].alg.id);
1153 			region->base = be32_to_cpu(adsp2_alg[i].zm);
1154 			region->len = 0;
1155 			list_add_tail(&region->list, &dsp->alg_regions);
1156 			if (i + 1 < algs) {
1157 				region->len = be32_to_cpu(adsp2_alg[i + 1].zm);
1158 				region->len -= be32_to_cpu(adsp2_alg[i].zm);
1159 				region->len *= 4;
1160 				wm_adsp_create_control(dsp, region);
1161 			} else {
1162 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1163 					  be32_to_cpu(adsp2_alg[i].alg.id));
1164 			}
1165 			break;
1166 		}
1167 	}
1168 
1169 out:
1170 	kfree(alg);
1171 	return ret;
1172 }
1173 
1174 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1175 {
1176 	LIST_HEAD(buf_list);
1177 	struct regmap *regmap = dsp->regmap;
1178 	struct wmfw_coeff_hdr *hdr;
1179 	struct wmfw_coeff_item *blk;
1180 	const struct firmware *firmware;
1181 	const struct wm_adsp_region *mem;
1182 	struct wm_adsp_alg_region *alg_region;
1183 	const char *region_name;
1184 	int ret, pos, blocks, type, offset, reg;
1185 	char *file;
1186 	struct wm_adsp_buf *buf;
1187 
1188 	file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1189 	if (file == NULL)
1190 		return -ENOMEM;
1191 
1192 	snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1193 		 wm_adsp_fw[dsp->fw].file);
1194 	file[PAGE_SIZE - 1] = '\0';
1195 
1196 	ret = request_firmware(&firmware, file, dsp->dev);
1197 	if (ret != 0) {
1198 		adsp_warn(dsp, "Failed to request '%s'\n", file);
1199 		ret = 0;
1200 		goto out;
1201 	}
1202 	ret = -EINVAL;
1203 
1204 	if (sizeof(*hdr) >= firmware->size) {
1205 		adsp_err(dsp, "%s: file too short, %zu bytes\n",
1206 			file, firmware->size);
1207 		goto out_fw;
1208 	}
1209 
1210 	hdr = (void*)&firmware->data[0];
1211 	if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1212 		adsp_err(dsp, "%s: invalid magic\n", file);
1213 		goto out_fw;
1214 	}
1215 
1216 	switch (be32_to_cpu(hdr->rev) & 0xff) {
1217 	case 1:
1218 		break;
1219 	default:
1220 		adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1221 			 file, be32_to_cpu(hdr->rev) & 0xff);
1222 		ret = -EINVAL;
1223 		goto out_fw;
1224 	}
1225 
1226 	adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1227 		(le32_to_cpu(hdr->ver) >> 16) & 0xff,
1228 		(le32_to_cpu(hdr->ver) >>  8) & 0xff,
1229 		le32_to_cpu(hdr->ver) & 0xff);
1230 
1231 	pos = le32_to_cpu(hdr->len);
1232 
1233 	blocks = 0;
1234 	while (pos < firmware->size &&
1235 	       pos - firmware->size > sizeof(*blk)) {
1236 		blk = (void*)(&firmware->data[pos]);
1237 
1238 		type = le16_to_cpu(blk->type);
1239 		offset = le16_to_cpu(blk->offset);
1240 
1241 		adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1242 			 file, blocks, le32_to_cpu(blk->id),
1243 			 (le32_to_cpu(blk->ver) >> 16) & 0xff,
1244 			 (le32_to_cpu(blk->ver) >>  8) & 0xff,
1245 			 le32_to_cpu(blk->ver) & 0xff);
1246 		adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1247 			 file, blocks, le32_to_cpu(blk->len), offset, type);
1248 
1249 		reg = 0;
1250 		region_name = "Unknown";
1251 		switch (type) {
1252 		case (WMFW_NAME_TEXT << 8):
1253 		case (WMFW_INFO_TEXT << 8):
1254 			break;
1255 		case (WMFW_ABSOLUTE << 8):
1256 			/*
1257 			 * Old files may use this for global
1258 			 * coefficients.
1259 			 */
1260 			if (le32_to_cpu(blk->id) == dsp->fw_id &&
1261 			    offset == 0) {
1262 				region_name = "global coefficients";
1263 				mem = wm_adsp_find_region(dsp, type);
1264 				if (!mem) {
1265 					adsp_err(dsp, "No ZM\n");
1266 					break;
1267 				}
1268 				reg = wm_adsp_region_to_reg(mem, 0);
1269 
1270 			} else {
1271 				region_name = "register";
1272 				reg = offset;
1273 			}
1274 			break;
1275 
1276 		case WMFW_ADSP1_DM:
1277 		case WMFW_ADSP1_ZM:
1278 		case WMFW_ADSP2_XM:
1279 		case WMFW_ADSP2_YM:
1280 			adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
1281 				 file, blocks, le32_to_cpu(blk->len),
1282 				 type, le32_to_cpu(blk->id));
1283 
1284 			mem = wm_adsp_find_region(dsp, type);
1285 			if (!mem) {
1286 				adsp_err(dsp, "No base for region %x\n", type);
1287 				break;
1288 			}
1289 
1290 			reg = 0;
1291 			list_for_each_entry(alg_region,
1292 					    &dsp->alg_regions, list) {
1293 				if (le32_to_cpu(blk->id) == alg_region->alg &&
1294 				    type == alg_region->type) {
1295 					reg = alg_region->base;
1296 					reg = wm_adsp_region_to_reg(mem,
1297 								    reg);
1298 					reg += offset;
1299 					break;
1300 				}
1301 			}
1302 
1303 			if (reg == 0)
1304 				adsp_err(dsp, "No %x for algorithm %x\n",
1305 					 type, le32_to_cpu(blk->id));
1306 			break;
1307 
1308 		default:
1309 			adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
1310 				 file, blocks, type, pos);
1311 			break;
1312 		}
1313 
1314 		if (reg) {
1315 			buf = wm_adsp_buf_alloc(blk->data,
1316 						le32_to_cpu(blk->len),
1317 						&buf_list);
1318 			if (!buf) {
1319 				adsp_err(dsp, "Out of memory\n");
1320 				ret = -ENOMEM;
1321 				goto out_fw;
1322 			}
1323 
1324 			adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
1325 				 file, blocks, le32_to_cpu(blk->len),
1326 				 reg);
1327 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
1328 						     le32_to_cpu(blk->len));
1329 			if (ret != 0) {
1330 				adsp_err(dsp,
1331 					"%s.%d: Failed to write to %x in %s: %d\n",
1332 					file, blocks, reg, region_name, ret);
1333 			}
1334 		}
1335 
1336 		pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
1337 		blocks++;
1338 	}
1339 
1340 	ret = regmap_async_complete(regmap);
1341 	if (ret != 0)
1342 		adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1343 
1344 	if (pos > firmware->size)
1345 		adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1346 			  file, blocks, pos - firmware->size);
1347 
1348 out_fw:
1349 	regmap_async_complete(regmap);
1350 	release_firmware(firmware);
1351 	wm_adsp_buf_free(&buf_list);
1352 out:
1353 	kfree(file);
1354 	return ret;
1355 }
1356 
1357 int wm_adsp1_init(struct wm_adsp *adsp)
1358 {
1359 	INIT_LIST_HEAD(&adsp->alg_regions);
1360 
1361 	return 0;
1362 }
1363 EXPORT_SYMBOL_GPL(wm_adsp1_init);
1364 
1365 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
1366 		   struct snd_kcontrol *kcontrol,
1367 		   int event)
1368 {
1369 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
1370 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1371 	struct wm_adsp *dsp = &dsps[w->shift];
1372 	struct wm_adsp_alg_region *alg_region;
1373 	struct wm_coeff_ctl *ctl;
1374 	int ret;
1375 	int val;
1376 
1377 	dsp->card = codec->component.card;
1378 
1379 	switch (event) {
1380 	case SND_SOC_DAPM_POST_PMU:
1381 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1382 				   ADSP1_SYS_ENA, ADSP1_SYS_ENA);
1383 
1384 		/*
1385 		 * For simplicity set the DSP clock rate to be the
1386 		 * SYSCLK rate rather than making it configurable.
1387 		 */
1388 		if(dsp->sysclk_reg) {
1389 			ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
1390 			if (ret != 0) {
1391 				adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
1392 				ret);
1393 				return ret;
1394 			}
1395 
1396 			val = (val & dsp->sysclk_mask)
1397 				>> dsp->sysclk_shift;
1398 
1399 			ret = regmap_update_bits(dsp->regmap,
1400 						 dsp->base + ADSP1_CONTROL_31,
1401 						 ADSP1_CLK_SEL_MASK, val);
1402 			if (ret != 0) {
1403 				adsp_err(dsp, "Failed to set clock rate: %d\n",
1404 					 ret);
1405 				return ret;
1406 			}
1407 		}
1408 
1409 		ret = wm_adsp_load(dsp);
1410 		if (ret != 0)
1411 			goto err;
1412 
1413 		ret = wm_adsp_setup_algs(dsp);
1414 		if (ret != 0)
1415 			goto err;
1416 
1417 		ret = wm_adsp_load_coeff(dsp);
1418 		if (ret != 0)
1419 			goto err;
1420 
1421 		/* Initialize caches for enabled and unset controls */
1422 		ret = wm_coeff_init_control_caches(dsp);
1423 		if (ret != 0)
1424 			goto err;
1425 
1426 		/* Sync set controls */
1427 		ret = wm_coeff_sync_controls(dsp);
1428 		if (ret != 0)
1429 			goto err;
1430 
1431 		/* Start the core running */
1432 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1433 				   ADSP1_CORE_ENA | ADSP1_START,
1434 				   ADSP1_CORE_ENA | ADSP1_START);
1435 		break;
1436 
1437 	case SND_SOC_DAPM_PRE_PMD:
1438 		/* Halt the core */
1439 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1440 				   ADSP1_CORE_ENA | ADSP1_START, 0);
1441 
1442 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
1443 				   ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
1444 
1445 		regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1446 				   ADSP1_SYS_ENA, 0);
1447 
1448 		list_for_each_entry(ctl, &dsp->ctl_list, list)
1449 			ctl->enabled = 0;
1450 
1451 		while (!list_empty(&dsp->alg_regions)) {
1452 			alg_region = list_first_entry(&dsp->alg_regions,
1453 						      struct wm_adsp_alg_region,
1454 						      list);
1455 			list_del(&alg_region->list);
1456 			kfree(alg_region);
1457 		}
1458 		break;
1459 
1460 	default:
1461 		break;
1462 	}
1463 
1464 	return 0;
1465 
1466 err:
1467 	regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
1468 			   ADSP1_SYS_ENA, 0);
1469 	return ret;
1470 }
1471 EXPORT_SYMBOL_GPL(wm_adsp1_event);
1472 
1473 static int wm_adsp2_ena(struct wm_adsp *dsp)
1474 {
1475 	unsigned int val;
1476 	int ret, count;
1477 
1478 	ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
1479 				       ADSP2_SYS_ENA, ADSP2_SYS_ENA);
1480 	if (ret != 0)
1481 		return ret;
1482 
1483 	/* Wait for the RAM to start, should be near instantaneous */
1484 	for (count = 0; count < 10; ++count) {
1485 		ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1,
1486 				  &val);
1487 		if (ret != 0)
1488 			return ret;
1489 
1490 		if (val & ADSP2_RAM_RDY)
1491 			break;
1492 
1493 		msleep(1);
1494 	}
1495 
1496 	if (!(val & ADSP2_RAM_RDY)) {
1497 		adsp_err(dsp, "Failed to start DSP RAM\n");
1498 		return -EBUSY;
1499 	}
1500 
1501 	adsp_dbg(dsp, "RAM ready after %d polls\n", count);
1502 
1503 	return 0;
1504 }
1505 
1506 static void wm_adsp2_boot_work(struct work_struct *work)
1507 {
1508 	struct wm_adsp *dsp = container_of(work,
1509 					   struct wm_adsp,
1510 					   boot_work);
1511 	int ret;
1512 	unsigned int val;
1513 
1514 	/*
1515 	 * For simplicity set the DSP clock rate to be the
1516 	 * SYSCLK rate rather than making it configurable.
1517 	 */
1518 	ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
1519 	if (ret != 0) {
1520 		adsp_err(dsp, "Failed to read SYSCLK state: %d\n", ret);
1521 		return;
1522 	}
1523 	val = (val & ARIZONA_SYSCLK_FREQ_MASK)
1524 		>> ARIZONA_SYSCLK_FREQ_SHIFT;
1525 
1526 	ret = regmap_update_bits_async(dsp->regmap,
1527 				       dsp->base + ADSP2_CLOCKING,
1528 				       ADSP2_CLK_SEL_MASK, val);
1529 	if (ret != 0) {
1530 		adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
1531 		return;
1532 	}
1533 
1534 	if (dsp->dvfs) {
1535 		ret = regmap_read(dsp->regmap,
1536 				  dsp->base + ADSP2_CLOCKING, &val);
1537 		if (ret != 0) {
1538 			adsp_err(dsp, "Failed to read clocking: %d\n", ret);
1539 			return;
1540 		}
1541 
1542 		if ((val & ADSP2_CLK_SEL_MASK) >= 3) {
1543 			ret = regulator_enable(dsp->dvfs);
1544 			if (ret != 0) {
1545 				adsp_err(dsp,
1546 					 "Failed to enable supply: %d\n",
1547 					 ret);
1548 				return;
1549 			}
1550 
1551 			ret = regulator_set_voltage(dsp->dvfs,
1552 						    1800000,
1553 						    1800000);
1554 			if (ret != 0) {
1555 				adsp_err(dsp,
1556 					 "Failed to raise supply: %d\n",
1557 					 ret);
1558 				return;
1559 			}
1560 		}
1561 	}
1562 
1563 	ret = wm_adsp2_ena(dsp);
1564 	if (ret != 0)
1565 		return;
1566 
1567 	ret = wm_adsp_load(dsp);
1568 	if (ret != 0)
1569 		goto err;
1570 
1571 	ret = wm_adsp_setup_algs(dsp);
1572 	if (ret != 0)
1573 		goto err;
1574 
1575 	ret = wm_adsp_load_coeff(dsp);
1576 	if (ret != 0)
1577 		goto err;
1578 
1579 	/* Initialize caches for enabled and unset controls */
1580 	ret = wm_coeff_init_control_caches(dsp);
1581 	if (ret != 0)
1582 		goto err;
1583 
1584 	/* Sync set controls */
1585 	ret = wm_coeff_sync_controls(dsp);
1586 	if (ret != 0)
1587 		goto err;
1588 
1589 	dsp->running = true;
1590 
1591 	return;
1592 
1593 err:
1594 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1595 			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
1596 }
1597 
1598 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
1599 		   struct snd_kcontrol *kcontrol, int event)
1600 {
1601 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
1602 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1603 	struct wm_adsp *dsp = &dsps[w->shift];
1604 
1605 	dsp->card = codec->component.card;
1606 
1607 	switch (event) {
1608 	case SND_SOC_DAPM_PRE_PMU:
1609 		queue_work(system_unbound_wq, &dsp->boot_work);
1610 		break;
1611 	default:
1612 		break;
1613 	}
1614 
1615 	return 0;
1616 }
1617 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
1618 
1619 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
1620 		   struct snd_kcontrol *kcontrol, int event)
1621 {
1622 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
1623 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1624 	struct wm_adsp *dsp = &dsps[w->shift];
1625 	struct wm_adsp_alg_region *alg_region;
1626 	struct wm_coeff_ctl *ctl;
1627 	int ret;
1628 
1629 	switch (event) {
1630 	case SND_SOC_DAPM_POST_PMU:
1631 		flush_work(&dsp->boot_work);
1632 
1633 		if (!dsp->running)
1634 			return -EIO;
1635 
1636 		ret = regmap_update_bits(dsp->regmap,
1637 					 dsp->base + ADSP2_CONTROL,
1638 					 ADSP2_CORE_ENA | ADSP2_START,
1639 					 ADSP2_CORE_ENA | ADSP2_START);
1640 		if (ret != 0)
1641 			goto err;
1642 		break;
1643 
1644 	case SND_SOC_DAPM_PRE_PMD:
1645 		dsp->running = false;
1646 
1647 		regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1648 				   ADSP2_SYS_ENA | ADSP2_CORE_ENA |
1649 				   ADSP2_START, 0);
1650 
1651 		/* Make sure DMAs are quiesced */
1652 		regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
1653 		regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
1654 		regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
1655 
1656 		if (dsp->dvfs) {
1657 			ret = regulator_set_voltage(dsp->dvfs, 1200000,
1658 						    1800000);
1659 			if (ret != 0)
1660 				adsp_warn(dsp,
1661 					  "Failed to lower supply: %d\n",
1662 					  ret);
1663 
1664 			ret = regulator_disable(dsp->dvfs);
1665 			if (ret != 0)
1666 				adsp_err(dsp,
1667 					 "Failed to enable supply: %d\n",
1668 					 ret);
1669 		}
1670 
1671 		list_for_each_entry(ctl, &dsp->ctl_list, list)
1672 			ctl->enabled = 0;
1673 
1674 		while (!list_empty(&dsp->alg_regions)) {
1675 			alg_region = list_first_entry(&dsp->alg_regions,
1676 						      struct wm_adsp_alg_region,
1677 						      list);
1678 			list_del(&alg_region->list);
1679 			kfree(alg_region);
1680 		}
1681 
1682 		adsp_dbg(dsp, "Shutdown complete\n");
1683 		break;
1684 
1685 	default:
1686 		break;
1687 	}
1688 
1689 	return 0;
1690 err:
1691 	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
1692 			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
1693 	return ret;
1694 }
1695 EXPORT_SYMBOL_GPL(wm_adsp2_event);
1696 
1697 int wm_adsp2_init(struct wm_adsp *adsp, bool dvfs)
1698 {
1699 	int ret;
1700 
1701 	/*
1702 	 * Disable the DSP memory by default when in reset for a small
1703 	 * power saving.
1704 	 */
1705 	ret = regmap_update_bits(adsp->regmap, adsp->base + ADSP2_CONTROL,
1706 				 ADSP2_MEM_ENA, 0);
1707 	if (ret != 0) {
1708 		adsp_err(adsp, "Failed to clear memory retention: %d\n", ret);
1709 		return ret;
1710 	}
1711 
1712 	INIT_LIST_HEAD(&adsp->alg_regions);
1713 	INIT_LIST_HEAD(&adsp->ctl_list);
1714 	INIT_WORK(&adsp->boot_work, wm_adsp2_boot_work);
1715 
1716 	if (dvfs) {
1717 		adsp->dvfs = devm_regulator_get(adsp->dev, "DCVDD");
1718 		if (IS_ERR(adsp->dvfs)) {
1719 			ret = PTR_ERR(adsp->dvfs);
1720 			adsp_err(adsp, "Failed to get DCVDD: %d\n", ret);
1721 			return ret;
1722 		}
1723 
1724 		ret = regulator_enable(adsp->dvfs);
1725 		if (ret != 0) {
1726 			adsp_err(adsp, "Failed to enable DCVDD: %d\n", ret);
1727 			return ret;
1728 		}
1729 
1730 		ret = regulator_set_voltage(adsp->dvfs, 1200000, 1800000);
1731 		if (ret != 0) {
1732 			adsp_err(adsp, "Failed to initialise DVFS: %d\n", ret);
1733 			return ret;
1734 		}
1735 
1736 		ret = regulator_disable(adsp->dvfs);
1737 		if (ret != 0) {
1738 			adsp_err(adsp, "Failed to disable DCVDD: %d\n", ret);
1739 			return ret;
1740 		}
1741 	}
1742 
1743 	return 0;
1744 }
1745 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1746 
1747 MODULE_LICENSE("GPL v2");
1748