1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * wm8958-dsp2.c  --  WM8958 DSP2 support
4  *
5  * Copyright 2011 Wolfson Microelectronics plc
6  *
7  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8  */
9 
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/init.h>
13 #include <linux/delay.h>
14 #include <linux/pm.h>
15 #include <linux/i2c.h>
16 #include <linux/platform_device.h>
17 #include <linux/slab.h>
18 #include <sound/soc.h>
19 #include <sound/initval.h>
20 #include <sound/tlv.h>
21 #include <trace/events/asoc.h>
22 
23 #include <linux/mfd/wm8994/core.h>
24 #include <linux/mfd/wm8994/registers.h>
25 #include <linux/mfd/wm8994/pdata.h>
26 #include <linux/mfd/wm8994/gpio.h>
27 
28 #include <asm/unaligned.h>
29 
30 #include "wm8994.h"
31 
32 #define WM_FW_BLOCK_INFO 0xff
33 #define WM_FW_BLOCK_PM   0x00
34 #define WM_FW_BLOCK_X    0x01
35 #define WM_FW_BLOCK_Y    0x02
36 #define WM_FW_BLOCK_Z    0x03
37 #define WM_FW_BLOCK_I    0x06
38 #define WM_FW_BLOCK_A    0x08
39 #define WM_FW_BLOCK_C    0x0c
40 
wm8958_dsp2_fw(struct snd_soc_component * component,const char * name,const struct firmware * fw,bool check)41 static int wm8958_dsp2_fw(struct snd_soc_component *component, const char *name,
42 			  const struct firmware *fw, bool check)
43 {
44 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
45 	u64 data64;
46 	u32 data32;
47 	const u8 *data;
48 	char *str;
49 	size_t block_len, len;
50 	int ret = 0;
51 
52 	/* Suppress unneeded downloads */
53 	if (wm8994->cur_fw == fw)
54 		return 0;
55 
56 	if (fw->size < 32) {
57 		dev_err(component->dev, "%s: firmware too short (%zd bytes)\n",
58 			name, fw->size);
59 		goto err;
60 	}
61 
62 	if (memcmp(fw->data, "WMFW", 4) != 0) {
63 		data32 = get_unaligned_be32(fw->data);
64 		dev_err(component->dev, "%s: firmware has bad file magic %08x\n",
65 			name, data32);
66 		goto err;
67 	}
68 
69 	len = get_unaligned_be32(fw->data + 4);
70 	data32 = get_unaligned_be32(fw->data + 8);
71 
72 	if ((data32 >> 24) & 0xff) {
73 		dev_err(component->dev, "%s: unsupported firmware version %d\n",
74 			name, (data32 >> 24) & 0xff);
75 		goto err;
76 	}
77 	if ((data32 & 0xffff) != 8958) {
78 		dev_err(component->dev, "%s: unsupported target device %d\n",
79 			name, data32 & 0xffff);
80 		goto err;
81 	}
82 	if (((data32 >> 16) & 0xff) != 0xc) {
83 		dev_err(component->dev, "%s: unsupported target core %d\n",
84 			name, (data32 >> 16) & 0xff);
85 		goto err;
86 	}
87 
88 	if (check) {
89 		data64 = get_unaligned_be64(fw->data + 24);
90 		dev_info(component->dev, "%s timestamp %llx\n",  name, data64);
91 	} else {
92 		snd_soc_component_write(component, 0x102, 0x2);
93 		snd_soc_component_write(component, 0x900, 0x2);
94 	}
95 
96 	data = fw->data + len;
97 	len = fw->size - len;
98 	while (len) {
99 		if (len < 12) {
100 			dev_err(component->dev, "%s short data block of %zd\n",
101 				name, len);
102 			goto err;
103 		}
104 
105 		block_len = get_unaligned_be32(data + 4);
106 		if (block_len + 8 > len) {
107 			dev_err(component->dev, "%zd byte block longer than file\n",
108 				block_len);
109 			goto err;
110 		}
111 		if (block_len == 0) {
112 			dev_err(component->dev, "Zero length block\n");
113 			goto err;
114 		}
115 
116 		data32 = get_unaligned_be32(data);
117 
118 		switch ((data32 >> 24) & 0xff) {
119 		case WM_FW_BLOCK_INFO:
120 			/* Informational text */
121 			if (!check)
122 				break;
123 
124 			str = kzalloc(block_len + 1, GFP_KERNEL);
125 			if (str) {
126 				memcpy(str, data + 8, block_len);
127 				dev_info(component->dev, "%s: %s\n", name, str);
128 				kfree(str);
129 			} else {
130 				dev_err(component->dev, "Out of memory\n");
131 			}
132 			break;
133 		case WM_FW_BLOCK_PM:
134 		case WM_FW_BLOCK_X:
135 		case WM_FW_BLOCK_Y:
136 		case WM_FW_BLOCK_Z:
137 		case WM_FW_BLOCK_I:
138 		case WM_FW_BLOCK_A:
139 		case WM_FW_BLOCK_C:
140 			dev_dbg(component->dev, "%s: %zd bytes of %x@%x\n", name,
141 				block_len, (data32 >> 24) & 0xff,
142 				data32 & 0xffffff);
143 
144 			if (check)
145 				break;
146 
147 			data32 &= 0xffffff;
148 
149 			wm8994_bulk_write(wm8994->wm8994,
150 					  data32 & 0xffffff,
151 					  block_len / 2,
152 					  (void *)(data + 8));
153 
154 			break;
155 		default:
156 			dev_warn(component->dev, "%s: unknown block type %d\n",
157 				 name, (data32 >> 24) & 0xff);
158 			break;
159 		}
160 
161 		/* Round up to the next 32 bit word */
162 		block_len += block_len % 4;
163 
164 		data += block_len + 8;
165 		len -= block_len + 8;
166 	}
167 
168 	if (!check) {
169 		dev_dbg(component->dev, "%s: download done\n", name);
170 		wm8994->cur_fw = fw;
171 	} else {
172 		dev_info(component->dev, "%s: got firmware\n", name);
173 	}
174 
175 	goto ok;
176 
177 err:
178 	ret = -EINVAL;
179 ok:
180 	if (!check) {
181 		snd_soc_component_write(component, 0x900, 0x0);
182 		snd_soc_component_write(component, 0x102, 0x0);
183 	}
184 
185 	return ret;
186 }
187 
wm8958_dsp_start_mbc(struct snd_soc_component * component,int path)188 static void wm8958_dsp_start_mbc(struct snd_soc_component *component, int path)
189 {
190 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
191 	struct wm8994 *control = wm8994->wm8994;
192 	int i;
193 
194 	/* If the DSP is already running then noop */
195 	if (snd_soc_component_read(component, WM8958_DSP2_PROGRAM) & WM8958_DSP2_ENA)
196 		return;
197 
198 	/* If we have MBC firmware download it */
199 	if (wm8994->mbc)
200 		wm8958_dsp2_fw(component, "MBC", wm8994->mbc, false);
201 
202 	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
203 			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
204 
205 	/* If we've got user supplied MBC settings use them */
206 	if (control->pdata.num_mbc_cfgs) {
207 		struct wm8958_mbc_cfg *cfg
208 			= &control->pdata.mbc_cfgs[wm8994->mbc_cfg];
209 
210 		for (i = 0; i < ARRAY_SIZE(cfg->coeff_regs); i++)
211 			snd_soc_component_write(component, i + WM8958_MBC_BAND_1_K_1,
212 				      cfg->coeff_regs[i]);
213 
214 		for (i = 0; i < ARRAY_SIZE(cfg->cutoff_regs); i++)
215 			snd_soc_component_write(component,
216 				      i + WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_1,
217 				      cfg->cutoff_regs[i]);
218 	}
219 
220 	/* Run the DSP */
221 	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
222 		      WM8958_DSP2_RUNR);
223 
224 	/* And we're off! */
225 	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
226 			    WM8958_MBC_ENA |
227 			    WM8958_MBC_SEL_MASK,
228 			    path << WM8958_MBC_SEL_SHIFT |
229 			    WM8958_MBC_ENA);
230 }
231 
wm8958_dsp_start_vss(struct snd_soc_component * component,int path)232 static void wm8958_dsp_start_vss(struct snd_soc_component *component, int path)
233 {
234 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
235 	struct wm8994 *control = wm8994->wm8994;
236 	int i, ena;
237 
238 	if (wm8994->mbc_vss)
239 		wm8958_dsp2_fw(component, "MBC+VSS", wm8994->mbc_vss, false);
240 
241 	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
242 			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
243 
244 	/* If we've got user supplied settings use them */
245 	if (control->pdata.num_mbc_cfgs) {
246 		struct wm8958_mbc_cfg *cfg
247 			= &control->pdata.mbc_cfgs[wm8994->mbc_cfg];
248 
249 		for (i = 0; i < ARRAY_SIZE(cfg->combined_regs); i++)
250 			snd_soc_component_write(component, i + 0x2800,
251 				      cfg->combined_regs[i]);
252 	}
253 
254 	if (control->pdata.num_vss_cfgs) {
255 		struct wm8958_vss_cfg *cfg
256 			= &control->pdata.vss_cfgs[wm8994->vss_cfg];
257 
258 		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
259 			snd_soc_component_write(component, i + 0x2600, cfg->regs[i]);
260 	}
261 
262 	if (control->pdata.num_vss_hpf_cfgs) {
263 		struct wm8958_vss_hpf_cfg *cfg
264 			= &control->pdata.vss_hpf_cfgs[wm8994->vss_hpf_cfg];
265 
266 		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
267 			snd_soc_component_write(component, i + 0x2400, cfg->regs[i]);
268 	}
269 
270 	/* Run the DSP */
271 	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
272 		      WM8958_DSP2_RUNR);
273 
274 	/* Enable the algorithms we've selected */
275 	ena = 0;
276 	if (wm8994->mbc_ena[path])
277 		ena |= 0x8;
278 	if (wm8994->hpf2_ena[path])
279 		ena |= 0x4;
280 	if (wm8994->hpf1_ena[path])
281 		ena |= 0x2;
282 	if (wm8994->vss_ena[path])
283 		ena |= 0x1;
284 
285 	snd_soc_component_write(component, 0x2201, ena);
286 
287 	/* Switch the DSP into the data path */
288 	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
289 			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
290 			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
291 }
292 
wm8958_dsp_start_enh_eq(struct snd_soc_component * component,int path)293 static void wm8958_dsp_start_enh_eq(struct snd_soc_component *component, int path)
294 {
295 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
296 	struct wm8994 *control = wm8994->wm8994;
297 	int i;
298 
299 	wm8958_dsp2_fw(component, "ENH_EQ", wm8994->enh_eq, false);
300 
301 	snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
302 			    WM8958_DSP2_ENA, WM8958_DSP2_ENA);
303 
304 	/* If we've got user supplied settings use them */
305 	if (control->pdata.num_enh_eq_cfgs) {
306 		struct wm8958_enh_eq_cfg *cfg
307 			= &control->pdata.enh_eq_cfgs[wm8994->enh_eq_cfg];
308 
309 		for (i = 0; i < ARRAY_SIZE(cfg->regs); i++)
310 			snd_soc_component_write(component, i + 0x2200,
311 				      cfg->regs[i]);
312 	}
313 
314 	/* Run the DSP */
315 	snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
316 		      WM8958_DSP2_RUNR);
317 
318 	/* Switch the DSP into the data path */
319 	snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
320 			    WM8958_MBC_SEL_MASK | WM8958_MBC_ENA,
321 			    path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA);
322 }
323 
wm8958_dsp_apply(struct snd_soc_component * component,int path,int start)324 static void wm8958_dsp_apply(struct snd_soc_component *component, int path, int start)
325 {
326 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
327 	int pwr_reg = snd_soc_component_read(component, WM8994_POWER_MANAGEMENT_5);
328 	int ena, reg, aif;
329 
330 	switch (path) {
331 	case 0:
332 		pwr_reg &= (WM8994_AIF1DAC1L_ENA | WM8994_AIF1DAC1R_ENA);
333 		aif = 0;
334 		break;
335 	case 1:
336 		pwr_reg &= (WM8994_AIF1DAC2L_ENA | WM8994_AIF1DAC2R_ENA);
337 		aif = 0;
338 		break;
339 	case 2:
340 		pwr_reg &= (WM8994_AIF2DACL_ENA | WM8994_AIF2DACR_ENA);
341 		aif = 1;
342 		break;
343 	default:
344 		WARN(1, "Invalid path %d\n", path);
345 		return;
346 	}
347 
348 	/* Do we have both an active AIF and an active algorithm? */
349 	ena = wm8994->mbc_ena[path] || wm8994->vss_ena[path] ||
350 		wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path] ||
351 		wm8994->enh_eq_ena[path];
352 	if (!pwr_reg)
353 		ena = 0;
354 
355 	reg = snd_soc_component_read(component, WM8958_DSP2_PROGRAM);
356 
357 	dev_dbg(component->dev, "DSP path %d %d startup: %d, power: %x, DSP: %x\n",
358 		path, wm8994->dsp_active, start, pwr_reg, reg);
359 
360 	if (start && ena) {
361 		/* If the DSP is already running then noop */
362 		if (reg & WM8958_DSP2_ENA)
363 			return;
364 
365 		/* If either AIFnCLK is not yet enabled postpone */
366 		if (!(snd_soc_component_read(component, WM8994_AIF1_CLOCKING_1)
367 		      & WM8994_AIF1CLK_ENA_MASK) &&
368 		    !(snd_soc_component_read(component, WM8994_AIF2_CLOCKING_1)
369 		      & WM8994_AIF2CLK_ENA_MASK))
370 			return;
371 
372 		/* Switch the clock over to the appropriate AIF */
373 		snd_soc_component_update_bits(component, WM8994_CLOCKING_1,
374 				    WM8958_DSP2CLK_SRC | WM8958_DSP2CLK_ENA,
375 				    aif << WM8958_DSP2CLK_SRC_SHIFT |
376 				    WM8958_DSP2CLK_ENA);
377 
378 		if (wm8994->enh_eq_ena[path])
379 			wm8958_dsp_start_enh_eq(component, path);
380 		else if (wm8994->vss_ena[path] || wm8994->hpf1_ena[path] ||
381 		    wm8994->hpf2_ena[path])
382 			wm8958_dsp_start_vss(component, path);
383 		else if (wm8994->mbc_ena[path])
384 			wm8958_dsp_start_mbc(component, path);
385 
386 		wm8994->dsp_active = path;
387 
388 		dev_dbg(component->dev, "DSP running in path %d\n", path);
389 	}
390 
391 	if (!start && wm8994->dsp_active == path) {
392 		/* If the DSP is already stopped then noop */
393 		if (!(reg & WM8958_DSP2_ENA))
394 			return;
395 
396 		snd_soc_component_update_bits(component, WM8958_DSP2_CONFIG,
397 				    WM8958_MBC_ENA, 0);
398 		snd_soc_component_write(component, WM8958_DSP2_EXECCONTROL,
399 			      WM8958_DSP2_STOP);
400 		snd_soc_component_update_bits(component, WM8958_DSP2_PROGRAM,
401 				    WM8958_DSP2_ENA, 0);
402 		snd_soc_component_update_bits(component, WM8994_CLOCKING_1,
403 				    WM8958_DSP2CLK_ENA, 0);
404 
405 		wm8994->dsp_active = -1;
406 
407 		dev_dbg(component->dev, "DSP stopped\n");
408 	}
409 }
410 
wm8958_aif_ev(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)411 int wm8958_aif_ev(struct snd_soc_dapm_widget *w,
412 		  struct snd_kcontrol *kcontrol, int event)
413 {
414 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
415 	struct wm8994 *control = dev_get_drvdata(component->dev->parent);
416 	int i;
417 
418 	if (control->type != WM8958)
419 		return 0;
420 
421 	switch (event) {
422 	case SND_SOC_DAPM_POST_PMU:
423 	case SND_SOC_DAPM_PRE_PMU:
424 		for (i = 0; i < 3; i++)
425 			wm8958_dsp_apply(component, i, 1);
426 		break;
427 	case SND_SOC_DAPM_POST_PMD:
428 	case SND_SOC_DAPM_PRE_PMD:
429 		for (i = 0; i < 3; i++)
430 			wm8958_dsp_apply(component, i, 0);
431 		break;
432 	}
433 
434 	return 0;
435 }
436 
437 /* Check if DSP2 is in use on another AIF */
wm8958_dsp2_busy(struct wm8994_priv * wm8994,int aif)438 static int wm8958_dsp2_busy(struct wm8994_priv *wm8994, int aif)
439 {
440 	int i;
441 
442 	for (i = 0; i < ARRAY_SIZE(wm8994->mbc_ena); i++) {
443 		if (i == aif)
444 			continue;
445 		if (wm8994->mbc_ena[i] || wm8994->vss_ena[i] ||
446 		    wm8994->hpf1_ena[i] || wm8994->hpf2_ena[i])
447 			return 1;
448 	}
449 
450 	return 0;
451 }
452 
wm8958_put_mbc_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)453 static int wm8958_put_mbc_enum(struct snd_kcontrol *kcontrol,
454 			       struct snd_ctl_elem_value *ucontrol)
455 {
456 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
457 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
458 	struct wm8994 *control = wm8994->wm8994;
459 	int value = ucontrol->value.enumerated.item[0];
460 	int reg;
461 
462 	/* Don't allow on the fly reconfiguration */
463 	reg = snd_soc_component_read(component, WM8994_CLOCKING_1);
464 	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
465 		return -EBUSY;
466 
467 	if (value >= control->pdata.num_mbc_cfgs)
468 		return -EINVAL;
469 
470 	wm8994->mbc_cfg = value;
471 
472 	return 0;
473 }
474 
wm8958_get_mbc_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)475 static int wm8958_get_mbc_enum(struct snd_kcontrol *kcontrol,
476 			       struct snd_ctl_elem_value *ucontrol)
477 {
478 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
479 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
480 
481 	ucontrol->value.enumerated.item[0] = wm8994->mbc_cfg;
482 
483 	return 0;
484 }
485 
wm8958_mbc_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)486 static int wm8958_mbc_info(struct snd_kcontrol *kcontrol,
487 			   struct snd_ctl_elem_info *uinfo)
488 {
489 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
490 	uinfo->count = 1;
491 	uinfo->value.integer.min = 0;
492 	uinfo->value.integer.max = 1;
493 	return 0;
494 }
495 
wm8958_mbc_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)496 static int wm8958_mbc_get(struct snd_kcontrol *kcontrol,
497 			  struct snd_ctl_elem_value *ucontrol)
498 {
499 	int mbc = kcontrol->private_value;
500 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
501 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
502 
503 	ucontrol->value.integer.value[0] = wm8994->mbc_ena[mbc];
504 
505 	return 0;
506 }
507 
wm8958_mbc_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)508 static int wm8958_mbc_put(struct snd_kcontrol *kcontrol,
509 			  struct snd_ctl_elem_value *ucontrol)
510 {
511 	int mbc = kcontrol->private_value;
512 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
513 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
514 
515 	if (wm8994->mbc_ena[mbc] == ucontrol->value.integer.value[0])
516 		return 0;
517 
518 	if (ucontrol->value.integer.value[0] > 1)
519 		return -EINVAL;
520 
521 	if (wm8958_dsp2_busy(wm8994, mbc)) {
522 		dev_dbg(component->dev, "DSP2 active on %d already\n", mbc);
523 		return -EBUSY;
524 	}
525 
526 	if (wm8994->enh_eq_ena[mbc])
527 		return -EBUSY;
528 
529 	wm8994->mbc_ena[mbc] = ucontrol->value.integer.value[0];
530 
531 	wm8958_dsp_apply(component, mbc, wm8994->mbc_ena[mbc]);
532 
533 	return 1;
534 }
535 
536 #define WM8958_MBC_SWITCH(xname, xval) {\
537 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
538 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
539 	.info = wm8958_mbc_info, \
540 	.get = wm8958_mbc_get, .put = wm8958_mbc_put, \
541 	.private_value = xval }
542 
wm8958_put_vss_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)543 static int wm8958_put_vss_enum(struct snd_kcontrol *kcontrol,
544 			       struct snd_ctl_elem_value *ucontrol)
545 {
546 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
547 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
548 	struct wm8994 *control = wm8994->wm8994;
549 	int value = ucontrol->value.enumerated.item[0];
550 	int reg;
551 
552 	/* Don't allow on the fly reconfiguration */
553 	reg = snd_soc_component_read(component, WM8994_CLOCKING_1);
554 	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
555 		return -EBUSY;
556 
557 	if (value >= control->pdata.num_vss_cfgs)
558 		return -EINVAL;
559 
560 	wm8994->vss_cfg = value;
561 
562 	return 0;
563 }
564 
wm8958_get_vss_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)565 static int wm8958_get_vss_enum(struct snd_kcontrol *kcontrol,
566 			       struct snd_ctl_elem_value *ucontrol)
567 {
568 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
569 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
570 
571 	ucontrol->value.enumerated.item[0] = wm8994->vss_cfg;
572 
573 	return 0;
574 }
575 
wm8958_put_vss_hpf_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)576 static int wm8958_put_vss_hpf_enum(struct snd_kcontrol *kcontrol,
577 				   struct snd_ctl_elem_value *ucontrol)
578 {
579 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
580 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
581 	struct wm8994 *control = wm8994->wm8994;
582 	int value = ucontrol->value.enumerated.item[0];
583 	int reg;
584 
585 	/* Don't allow on the fly reconfiguration */
586 	reg = snd_soc_component_read(component, WM8994_CLOCKING_1);
587 	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
588 		return -EBUSY;
589 
590 	if (value >= control->pdata.num_vss_hpf_cfgs)
591 		return -EINVAL;
592 
593 	wm8994->vss_hpf_cfg = value;
594 
595 	return 0;
596 }
597 
wm8958_get_vss_hpf_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)598 static int wm8958_get_vss_hpf_enum(struct snd_kcontrol *kcontrol,
599 				   struct snd_ctl_elem_value *ucontrol)
600 {
601 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
602 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
603 
604 	ucontrol->value.enumerated.item[0] = wm8994->vss_hpf_cfg;
605 
606 	return 0;
607 }
608 
wm8958_vss_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)609 static int wm8958_vss_info(struct snd_kcontrol *kcontrol,
610 			   struct snd_ctl_elem_info *uinfo)
611 {
612 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
613 	uinfo->count = 1;
614 	uinfo->value.integer.min = 0;
615 	uinfo->value.integer.max = 1;
616 	return 0;
617 }
618 
wm8958_vss_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)619 static int wm8958_vss_get(struct snd_kcontrol *kcontrol,
620 			  struct snd_ctl_elem_value *ucontrol)
621 {
622 	int vss = kcontrol->private_value;
623 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
624 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
625 
626 	ucontrol->value.integer.value[0] = wm8994->vss_ena[vss];
627 
628 	return 0;
629 }
630 
wm8958_vss_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)631 static int wm8958_vss_put(struct snd_kcontrol *kcontrol,
632 			  struct snd_ctl_elem_value *ucontrol)
633 {
634 	int vss = kcontrol->private_value;
635 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
636 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
637 
638 	if (wm8994->vss_ena[vss] == ucontrol->value.integer.value[0])
639 		return 0;
640 
641 	if (ucontrol->value.integer.value[0] > 1)
642 		return -EINVAL;
643 
644 	if (!wm8994->mbc_vss)
645 		return -ENODEV;
646 
647 	if (wm8958_dsp2_busy(wm8994, vss)) {
648 		dev_dbg(component->dev, "DSP2 active on %d already\n", vss);
649 		return -EBUSY;
650 	}
651 
652 	if (wm8994->enh_eq_ena[vss])
653 		return -EBUSY;
654 
655 	wm8994->vss_ena[vss] = ucontrol->value.integer.value[0];
656 
657 	wm8958_dsp_apply(component, vss, wm8994->vss_ena[vss]);
658 
659 	return 1;
660 }
661 
662 
663 #define WM8958_VSS_SWITCH(xname, xval) {\
664 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
665 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
666 	.info = wm8958_vss_info, \
667 	.get = wm8958_vss_get, .put = wm8958_vss_put, \
668 	.private_value = xval }
669 
wm8958_hpf_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)670 static int wm8958_hpf_info(struct snd_kcontrol *kcontrol,
671 			   struct snd_ctl_elem_info *uinfo)
672 {
673 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
674 	uinfo->count = 1;
675 	uinfo->value.integer.min = 0;
676 	uinfo->value.integer.max = 1;
677 	return 0;
678 }
679 
wm8958_hpf_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)680 static int wm8958_hpf_get(struct snd_kcontrol *kcontrol,
681 			  struct snd_ctl_elem_value *ucontrol)
682 {
683 	int hpf = kcontrol->private_value;
684 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
685 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
686 
687 	if (hpf < 3)
688 		ucontrol->value.integer.value[0] = wm8994->hpf1_ena[hpf % 3];
689 	else
690 		ucontrol->value.integer.value[0] = wm8994->hpf2_ena[hpf % 3];
691 
692 	return 0;
693 }
694 
wm8958_hpf_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)695 static int wm8958_hpf_put(struct snd_kcontrol *kcontrol,
696 			  struct snd_ctl_elem_value *ucontrol)
697 {
698 	int hpf = kcontrol->private_value;
699 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
700 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
701 
702 	if (hpf < 3) {
703 		if (wm8994->hpf1_ena[hpf % 3] ==
704 		    ucontrol->value.integer.value[0])
705 			return 0;
706 	} else {
707 		if (wm8994->hpf2_ena[hpf % 3] ==
708 		    ucontrol->value.integer.value[0])
709 			return 0;
710 	}
711 
712 	if (ucontrol->value.integer.value[0] > 1)
713 		return -EINVAL;
714 
715 	if (!wm8994->mbc_vss)
716 		return -ENODEV;
717 
718 	if (wm8958_dsp2_busy(wm8994, hpf % 3)) {
719 		dev_dbg(component->dev, "DSP2 active on %d already\n", hpf);
720 		return -EBUSY;
721 	}
722 
723 	if (wm8994->enh_eq_ena[hpf % 3])
724 		return -EBUSY;
725 
726 	if (hpf < 3)
727 		wm8994->hpf1_ena[hpf % 3] = ucontrol->value.integer.value[0];
728 	else
729 		wm8994->hpf2_ena[hpf % 3] = ucontrol->value.integer.value[0];
730 
731 	wm8958_dsp_apply(component, hpf % 3, ucontrol->value.integer.value[0]);
732 
733 	return 1;
734 }
735 
736 #define WM8958_HPF_SWITCH(xname, xval) {\
737 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
738 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
739 	.info = wm8958_hpf_info, \
740 	.get = wm8958_hpf_get, .put = wm8958_hpf_put, \
741 	.private_value = xval }
742 
wm8958_put_enh_eq_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)743 static int wm8958_put_enh_eq_enum(struct snd_kcontrol *kcontrol,
744 				  struct snd_ctl_elem_value *ucontrol)
745 {
746 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
747 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
748 	struct wm8994 *control = wm8994->wm8994;
749 	int value = ucontrol->value.enumerated.item[0];
750 	int reg;
751 
752 	/* Don't allow on the fly reconfiguration */
753 	reg = snd_soc_component_read(component, WM8994_CLOCKING_1);
754 	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)
755 		return -EBUSY;
756 
757 	if (value >= control->pdata.num_enh_eq_cfgs)
758 		return -EINVAL;
759 
760 	wm8994->enh_eq_cfg = value;
761 
762 	return 0;
763 }
764 
wm8958_get_enh_eq_enum(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)765 static int wm8958_get_enh_eq_enum(struct snd_kcontrol *kcontrol,
766 				  struct snd_ctl_elem_value *ucontrol)
767 {
768 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
769 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
770 
771 	ucontrol->value.enumerated.item[0] = wm8994->enh_eq_cfg;
772 
773 	return 0;
774 }
775 
wm8958_enh_eq_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)776 static int wm8958_enh_eq_info(struct snd_kcontrol *kcontrol,
777 			   struct snd_ctl_elem_info *uinfo)
778 {
779 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
780 	uinfo->count = 1;
781 	uinfo->value.integer.min = 0;
782 	uinfo->value.integer.max = 1;
783 	return 0;
784 }
785 
wm8958_enh_eq_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)786 static int wm8958_enh_eq_get(struct snd_kcontrol *kcontrol,
787 			  struct snd_ctl_elem_value *ucontrol)
788 {
789 	int eq = kcontrol->private_value;
790 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
791 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
792 
793 	ucontrol->value.integer.value[0] = wm8994->enh_eq_ena[eq];
794 
795 	return 0;
796 }
797 
wm8958_enh_eq_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)798 static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol,
799 			  struct snd_ctl_elem_value *ucontrol)
800 {
801 	int eq = kcontrol->private_value;
802 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
803 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
804 
805 	if (wm8994->enh_eq_ena[eq] == ucontrol->value.integer.value[0])
806 		return 0;
807 
808 	if (ucontrol->value.integer.value[0] > 1)
809 		return -EINVAL;
810 
811 	if (!wm8994->enh_eq)
812 		return -ENODEV;
813 
814 	if (wm8958_dsp2_busy(wm8994, eq)) {
815 		dev_dbg(component->dev, "DSP2 active on %d already\n", eq);
816 		return -EBUSY;
817 	}
818 
819 	if (wm8994->mbc_ena[eq] || wm8994->vss_ena[eq] ||
820 	    wm8994->hpf1_ena[eq] || wm8994->hpf2_ena[eq])
821 		return -EBUSY;
822 
823 	wm8994->enh_eq_ena[eq] = ucontrol->value.integer.value[0];
824 
825 	wm8958_dsp_apply(component, eq, ucontrol->value.integer.value[0]);
826 
827 	return 1;
828 }
829 
830 #define WM8958_ENH_EQ_SWITCH(xname, xval) {\
831 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
832 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\
833 	.info = wm8958_enh_eq_info, \
834 	.get = wm8958_enh_eq_get, .put = wm8958_enh_eq_put, \
835 	.private_value = xval }
836 
837 static const struct snd_kcontrol_new wm8958_mbc_snd_controls[] = {
838 WM8958_MBC_SWITCH("AIF1DAC1 MBC Switch", 0),
839 WM8958_MBC_SWITCH("AIF1DAC2 MBC Switch", 1),
840 WM8958_MBC_SWITCH("AIF2DAC MBC Switch", 2),
841 };
842 
843 static const struct snd_kcontrol_new wm8958_vss_snd_controls[] = {
844 WM8958_VSS_SWITCH("AIF1DAC1 VSS Switch", 0),
845 WM8958_VSS_SWITCH("AIF1DAC2 VSS Switch", 1),
846 WM8958_VSS_SWITCH("AIF2DAC VSS Switch", 2),
847 WM8958_HPF_SWITCH("AIF1DAC1 HPF1 Switch", 0),
848 WM8958_HPF_SWITCH("AIF1DAC2 HPF1 Switch", 1),
849 WM8958_HPF_SWITCH("AIF2DAC HPF1 Switch", 2),
850 WM8958_HPF_SWITCH("AIF1DAC1 HPF2 Switch", 3),
851 WM8958_HPF_SWITCH("AIF1DAC2 HPF2 Switch", 4),
852 WM8958_HPF_SWITCH("AIF2DAC HPF2 Switch", 5),
853 };
854 
855 static const struct snd_kcontrol_new wm8958_enh_eq_snd_controls[] = {
856 WM8958_ENH_EQ_SWITCH("AIF1DAC1 Enhanced EQ Switch", 0),
857 WM8958_ENH_EQ_SWITCH("AIF1DAC2 Enhanced EQ Switch", 1),
858 WM8958_ENH_EQ_SWITCH("AIF2DAC Enhanced EQ Switch", 2),
859 };
860 
wm8958_enh_eq_loaded(const struct firmware * fw,void * context)861 static void wm8958_enh_eq_loaded(const struct firmware *fw, void *context)
862 {
863 	struct snd_soc_component *component = context;
864 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
865 
866 	if (fw && (wm8958_dsp2_fw(component, "ENH_EQ", fw, true) == 0)) {
867 		mutex_lock(&wm8994->fw_lock);
868 		wm8994->enh_eq = fw;
869 		mutex_unlock(&wm8994->fw_lock);
870 	}
871 }
872 
wm8958_mbc_vss_loaded(const struct firmware * fw,void * context)873 static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context)
874 {
875 	struct snd_soc_component *component = context;
876 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
877 
878 	if (fw && (wm8958_dsp2_fw(component, "MBC+VSS", fw, true) == 0)) {
879 		mutex_lock(&wm8994->fw_lock);
880 		wm8994->mbc_vss = fw;
881 		mutex_unlock(&wm8994->fw_lock);
882 	}
883 }
884 
wm8958_mbc_loaded(const struct firmware * fw,void * context)885 static void wm8958_mbc_loaded(const struct firmware *fw, void *context)
886 {
887 	struct snd_soc_component *component = context;
888 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
889 
890 	if (fw && (wm8958_dsp2_fw(component, "MBC", fw, true) == 0)) {
891 		mutex_lock(&wm8994->fw_lock);
892 		wm8994->mbc = fw;
893 		mutex_unlock(&wm8994->fw_lock);
894 	}
895 }
896 
wm8958_dsp2_init(struct snd_soc_component * component)897 void wm8958_dsp2_init(struct snd_soc_component *component)
898 {
899 	struct wm8994_priv *wm8994 = snd_soc_component_get_drvdata(component);
900 	struct wm8994 *control = wm8994->wm8994;
901 	struct wm8994_pdata *pdata = &control->pdata;
902 	int ret, i;
903 
904 	wm8994->dsp_active = -1;
905 
906 	snd_soc_add_component_controls(component, wm8958_mbc_snd_controls,
907 			     ARRAY_SIZE(wm8958_mbc_snd_controls));
908 	snd_soc_add_component_controls(component, wm8958_vss_snd_controls,
909 			     ARRAY_SIZE(wm8958_vss_snd_controls));
910 	snd_soc_add_component_controls(component, wm8958_enh_eq_snd_controls,
911 			     ARRAY_SIZE(wm8958_enh_eq_snd_controls));
912 
913 
914 	/* We don't *require* firmware and don't want to delay boot */
915 	request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
916 				"wm8958_mbc.wfw", component->dev, GFP_KERNEL,
917 				component, wm8958_mbc_loaded);
918 	request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
919 				"wm8958_mbc_vss.wfw", component->dev, GFP_KERNEL,
920 				component, wm8958_mbc_vss_loaded);
921 	request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
922 				"wm8958_enh_eq.wfw", component->dev, GFP_KERNEL,
923 				component, wm8958_enh_eq_loaded);
924 
925 	if (pdata->num_mbc_cfgs) {
926 		struct snd_kcontrol_new mbc_control[] = {
927 			SOC_ENUM_EXT("MBC Mode", wm8994->mbc_enum,
928 				     wm8958_get_mbc_enum, wm8958_put_mbc_enum),
929 		};
930 
931 		/* We need an array of texts for the enum API */
932 		wm8994->mbc_texts = kmalloc_array(pdata->num_mbc_cfgs,
933 						  sizeof(char *),
934 						  GFP_KERNEL);
935 		if (!wm8994->mbc_texts)
936 			return;
937 
938 		for (i = 0; i < pdata->num_mbc_cfgs; i++)
939 			wm8994->mbc_texts[i] = pdata->mbc_cfgs[i].name;
940 
941 		wm8994->mbc_enum.items = pdata->num_mbc_cfgs;
942 		wm8994->mbc_enum.texts = wm8994->mbc_texts;
943 
944 		ret = snd_soc_add_component_controls(wm8994->hubs.component,
945 						 mbc_control, 1);
946 		if (ret != 0)
947 			dev_err(wm8994->hubs.component->dev,
948 				"Failed to add MBC mode controls: %d\n", ret);
949 	}
950 
951 	if (pdata->num_vss_cfgs) {
952 		struct snd_kcontrol_new vss_control[] = {
953 			SOC_ENUM_EXT("VSS Mode", wm8994->vss_enum,
954 				     wm8958_get_vss_enum, wm8958_put_vss_enum),
955 		};
956 
957 		/* We need an array of texts for the enum API */
958 		wm8994->vss_texts = kmalloc_array(pdata->num_vss_cfgs,
959 						  sizeof(char *),
960 						  GFP_KERNEL);
961 		if (!wm8994->vss_texts)
962 			return;
963 
964 		for (i = 0; i < pdata->num_vss_cfgs; i++)
965 			wm8994->vss_texts[i] = pdata->vss_cfgs[i].name;
966 
967 		wm8994->vss_enum.items = pdata->num_vss_cfgs;
968 		wm8994->vss_enum.texts = wm8994->vss_texts;
969 
970 		ret = snd_soc_add_component_controls(wm8994->hubs.component,
971 						 vss_control, 1);
972 		if (ret != 0)
973 			dev_err(wm8994->hubs.component->dev,
974 				"Failed to add VSS mode controls: %d\n", ret);
975 	}
976 
977 	if (pdata->num_vss_hpf_cfgs) {
978 		struct snd_kcontrol_new hpf_control[] = {
979 			SOC_ENUM_EXT("VSS HPF Mode", wm8994->vss_hpf_enum,
980 				     wm8958_get_vss_hpf_enum,
981 				     wm8958_put_vss_hpf_enum),
982 		};
983 
984 		/* We need an array of texts for the enum API */
985 		wm8994->vss_hpf_texts = kmalloc_array(pdata->num_vss_hpf_cfgs,
986 						      sizeof(char *),
987 						      GFP_KERNEL);
988 		if (!wm8994->vss_hpf_texts)
989 			return;
990 
991 		for (i = 0; i < pdata->num_vss_hpf_cfgs; i++)
992 			wm8994->vss_hpf_texts[i] = pdata->vss_hpf_cfgs[i].name;
993 
994 		wm8994->vss_hpf_enum.items = pdata->num_vss_hpf_cfgs;
995 		wm8994->vss_hpf_enum.texts = wm8994->vss_hpf_texts;
996 
997 		ret = snd_soc_add_component_controls(wm8994->hubs.component,
998 						 hpf_control, 1);
999 		if (ret != 0)
1000 			dev_err(wm8994->hubs.component->dev,
1001 				"Failed to add VSS HPFmode controls: %d\n",
1002 				ret);
1003 	}
1004 
1005 	if (pdata->num_enh_eq_cfgs) {
1006 		struct snd_kcontrol_new eq_control[] = {
1007 			SOC_ENUM_EXT("Enhanced EQ Mode", wm8994->enh_eq_enum,
1008 				     wm8958_get_enh_eq_enum,
1009 				     wm8958_put_enh_eq_enum),
1010 		};
1011 
1012 		/* We need an array of texts for the enum API */
1013 		wm8994->enh_eq_texts = kmalloc_array(pdata->num_enh_eq_cfgs,
1014 						     sizeof(char *),
1015 						     GFP_KERNEL);
1016 		if (!wm8994->enh_eq_texts)
1017 			return;
1018 
1019 		for (i = 0; i < pdata->num_enh_eq_cfgs; i++)
1020 			wm8994->enh_eq_texts[i] = pdata->enh_eq_cfgs[i].name;
1021 
1022 		wm8994->enh_eq_enum.items = pdata->num_enh_eq_cfgs;
1023 		wm8994->enh_eq_enum.texts = wm8994->enh_eq_texts;
1024 
1025 		ret = snd_soc_add_component_controls(wm8994->hubs.component,
1026 						 eq_control, 1);
1027 		if (ret != 0)
1028 			dev_err(wm8994->hubs.component->dev,
1029 				"Failed to add enhanced EQ controls: %d\n",
1030 				ret);
1031 	}
1032 }
1033