1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // tas2781-fmwlib.c -- TASDEVICE firmware support
4 //
5 // Copyright 2023 - 2024 Texas Instruments, Inc.
6 //
7 // Author: Shenghao Ding <shenghao-ding@ti.com>
8 
9 #include <linux/crc8.h>
10 #include <linux/firmware.h>
11 #include <linux/i2c.h>
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/of.h>
16 #include <linux/of_irq.h>
17 #include <linux/regmap.h>
18 #include <linux/slab.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/tlv.h>
22 #include <sound/tas2781.h>
23 #include <asm/unaligned.h>
24 
25 #define ERROR_PRAM_CRCCHK			0x0000000
26 #define ERROR_YRAM_CRCCHK			0x0000001
27 #define	PPC_DRIVER_CRCCHK			0x00000200
28 
29 #define TAS2781_SA_COEFF_SWAP_REG		TASDEVICE_REG(0, 0x35, 0x2c)
30 #define TAS2781_YRAM_BOOK1			140
31 #define TAS2781_YRAM1_PAGE			42
32 #define TAS2781_YRAM1_START_REG			88
33 
34 #define TAS2781_YRAM2_START_PAGE		43
35 #define TAS2781_YRAM2_END_PAGE			49
36 #define TAS2781_YRAM2_START_REG			8
37 #define TAS2781_YRAM2_END_REG			127
38 
39 #define TAS2781_YRAM3_PAGE			50
40 #define TAS2781_YRAM3_START_REG			8
41 #define TAS2781_YRAM3_END_REG			27
42 
43 /*should not include B0_P53_R44-R47 */
44 #define TAS2781_YRAM_BOOK2			0
45 #define TAS2781_YRAM4_START_PAGE		50
46 #define TAS2781_YRAM4_END_PAGE			60
47 
48 #define TAS2781_YRAM5_PAGE			61
49 #define TAS2781_YRAM5_START_REG			TAS2781_YRAM3_START_REG
50 #define TAS2781_YRAM5_END_REG			TAS2781_YRAM3_END_REG
51 
52 #define TASDEVICE_MAXPROGRAM_NUM_KERNEL			5
53 #define TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS	64
54 #define TASDEVICE_MAXCONFIG_NUM_KERNEL			10
55 #define MAIN_ALL_DEVICES_1X				0x01
56 #define MAIN_DEVICE_A_1X				0x02
57 #define MAIN_DEVICE_B_1X				0x03
58 #define MAIN_DEVICE_C_1X				0x04
59 #define MAIN_DEVICE_D_1X				0x05
60 #define COEFF_DEVICE_A_1X				0x12
61 #define COEFF_DEVICE_B_1X				0x13
62 #define COEFF_DEVICE_C_1X				0x14
63 #define COEFF_DEVICE_D_1X				0x15
64 #define PRE_DEVICE_A_1X					0x22
65 #define PRE_DEVICE_B_1X					0x23
66 #define PRE_DEVICE_C_1X					0x24
67 #define PRE_DEVICE_D_1X					0x25
68 #define PRE_SOFTWARE_RESET_DEVICE_A			0x41
69 #define PRE_SOFTWARE_RESET_DEVICE_B			0x42
70 #define PRE_SOFTWARE_RESET_DEVICE_C			0x43
71 #define PRE_SOFTWARE_RESET_DEVICE_D			0x44
72 #define POST_SOFTWARE_RESET_DEVICE_A			0x45
73 #define POST_SOFTWARE_RESET_DEVICE_B			0x46
74 #define POST_SOFTWARE_RESET_DEVICE_C			0x47
75 #define POST_SOFTWARE_RESET_DEVICE_D			0x48
76 
77 struct tas_crc {
78 	unsigned char offset;
79 	unsigned char len;
80 };
81 
82 static const char deviceNumber[TASDEVICE_DSP_TAS_MAX_DEVICE] = {
83 	1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4
84 };
85 
tasdevice_add_config(struct tasdevice_priv * tas_priv,unsigned char * config_data,unsigned int config_size,int * status)86 static struct tasdevice_config_info *tasdevice_add_config(
87 	struct tasdevice_priv *tas_priv, unsigned char *config_data,
88 	unsigned int config_size, int *status)
89 {
90 	struct tasdevice_config_info *cfg_info;
91 	struct tasdev_blk_data **bk_da;
92 	unsigned int config_offset = 0;
93 	unsigned int i;
94 
95 	/* In most projects are many audio cases, such as music, handfree,
96 	 * receiver, games, audio-to-haptics, PMIC record, bypass mode,
97 	 * portrait, landscape, etc. Even in multiple audios, one or
98 	 * two of the chips will work for the special case, such as
99 	 * ultrasonic application. In order to support these variable-numbers
100 	 * of audio cases, flexible configs have been introduced in the
101 	 * dsp firmware.
102 	 */
103 	cfg_info = kzalloc(sizeof(struct tasdevice_config_info), GFP_KERNEL);
104 	if (!cfg_info) {
105 		*status = -ENOMEM;
106 		goto out;
107 	}
108 
109 	if (tas_priv->rcabin.fw_hdr.binary_version_num >= 0x105) {
110 		if (config_offset + 64 > (int)config_size) {
111 			*status = -EINVAL;
112 			dev_err(tas_priv->dev, "add conf: Out of boundary\n");
113 			goto out;
114 		}
115 		config_offset += 64;
116 	}
117 
118 	if (config_offset + 4 > (int)config_size) {
119 		*status = -EINVAL;
120 		dev_err(tas_priv->dev, "add config: Out of boundary\n");
121 		goto out;
122 	}
123 
124 	/* convert data[offset], data[offset + 1], data[offset + 2] and
125 	 * data[offset + 3] into host
126 	 */
127 	cfg_info->nblocks = get_unaligned_be32(&config_data[config_offset]);
128 	config_offset += 4;
129 
130 	/* Several kinds of dsp/algorithm firmwares can run on tas2781,
131 	 * the number and size of blk are not fixed and different among
132 	 * these firmwares.
133 	 */
134 	bk_da = cfg_info->blk_data = kcalloc(cfg_info->nblocks,
135 		sizeof(struct tasdev_blk_data *), GFP_KERNEL);
136 	if (!bk_da) {
137 		*status = -ENOMEM;
138 		goto out;
139 	}
140 	cfg_info->real_nblocks = 0;
141 	for (i = 0; i < cfg_info->nblocks; i++) {
142 		if (config_offset + 12 > config_size) {
143 			*status = -EINVAL;
144 			dev_err(tas_priv->dev,
145 				"%s: Out of boundary: i = %d nblocks = %u!\n",
146 				__func__, i, cfg_info->nblocks);
147 			break;
148 		}
149 		bk_da[i] = kzalloc(sizeof(struct tasdev_blk_data), GFP_KERNEL);
150 		if (!bk_da[i]) {
151 			*status = -ENOMEM;
152 			break;
153 		}
154 
155 		bk_da[i]->dev_idx = config_data[config_offset];
156 		config_offset++;
157 
158 		bk_da[i]->block_type = config_data[config_offset];
159 		config_offset++;
160 
161 		if (bk_da[i]->block_type == TASDEVICE_BIN_BLK_PRE_POWER_UP) {
162 			if (bk_da[i]->dev_idx == 0)
163 				cfg_info->active_dev =
164 					(1 << tas_priv->ndev) - 1;
165 			else
166 				cfg_info->active_dev |= 1 <<
167 					(bk_da[i]->dev_idx - 1);
168 
169 		}
170 		bk_da[i]->yram_checksum =
171 			get_unaligned_be16(&config_data[config_offset]);
172 		config_offset += 2;
173 		bk_da[i]->block_size =
174 			get_unaligned_be32(&config_data[config_offset]);
175 		config_offset += 4;
176 
177 		bk_da[i]->n_subblks =
178 			get_unaligned_be32(&config_data[config_offset]);
179 
180 		config_offset += 4;
181 
182 		if (config_offset + bk_da[i]->block_size > config_size) {
183 			*status = -EINVAL;
184 			dev_err(tas_priv->dev,
185 				"%s: Out of boundary: i = %d blks = %u!\n",
186 				__func__, i, cfg_info->nblocks);
187 			break;
188 		}
189 		/* instead of kzalloc+memcpy */
190 		bk_da[i]->regdata = kmemdup(&config_data[config_offset],
191 			bk_da[i]->block_size, GFP_KERNEL);
192 		if (!bk_da[i]->regdata) {
193 			*status = -ENOMEM;
194 			goto out;
195 		}
196 
197 		config_offset += bk_da[i]->block_size;
198 		cfg_info->real_nblocks += 1;
199 	}
200 
201 out:
202 	return cfg_info;
203 }
204 
tasdevice_rca_parser(void * context,const struct firmware * fmw)205 int tasdevice_rca_parser(void *context, const struct firmware *fmw)
206 {
207 	struct tasdevice_priv *tas_priv = context;
208 	struct tasdevice_config_info **cfg_info;
209 	struct tasdevice_rca_hdr *fw_hdr;
210 	struct tasdevice_rca *rca;
211 	unsigned int total_config_sz = 0;
212 	unsigned char *buf;
213 	int offset = 0;
214 	int ret = 0;
215 	int i;
216 
217 	rca = &(tas_priv->rcabin);
218 	fw_hdr = &(rca->fw_hdr);
219 	if (!fmw || !fmw->data) {
220 		dev_err(tas_priv->dev, "Failed to read %s\n",
221 			tas_priv->rca_binaryname);
222 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
223 		ret = -EINVAL;
224 		goto out;
225 	}
226 	buf = (unsigned char *)fmw->data;
227 
228 	fw_hdr->img_sz = get_unaligned_be32(&buf[offset]);
229 	offset += 4;
230 	if (fw_hdr->img_sz != fmw->size) {
231 		dev_err(tas_priv->dev,
232 			"File size not match, %d %u", (int)fmw->size,
233 			fw_hdr->img_sz);
234 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
235 		ret = -EINVAL;
236 		goto out;
237 	}
238 
239 	fw_hdr->checksum = get_unaligned_be32(&buf[offset]);
240 	offset += 4;
241 	fw_hdr->binary_version_num = get_unaligned_be32(&buf[offset]);
242 	if (fw_hdr->binary_version_num < 0x103) {
243 		dev_err(tas_priv->dev, "File version 0x%04x is too low",
244 			fw_hdr->binary_version_num);
245 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
246 		ret = -EINVAL;
247 		goto out;
248 	}
249 	offset += 4;
250 	fw_hdr->drv_fw_version = get_unaligned_be32(&buf[offset]);
251 	offset += 8;
252 	fw_hdr->plat_type = buf[offset];
253 	offset += 1;
254 	fw_hdr->dev_family = buf[offset];
255 	offset += 1;
256 	fw_hdr->reserve = buf[offset];
257 	offset += 1;
258 	fw_hdr->ndev = buf[offset];
259 	offset += 1;
260 	if (fw_hdr->ndev != tas_priv->ndev) {
261 		dev_err(tas_priv->dev,
262 			"ndev(%u) in rcabin mismatch ndev(%u) in DTS\n",
263 			fw_hdr->ndev, tas_priv->ndev);
264 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
265 		ret = -EINVAL;
266 		goto out;
267 	}
268 	if (offset + TASDEVICE_DEVICE_SUM > fw_hdr->img_sz) {
269 		dev_err(tas_priv->dev, "rca_ready: Out of boundary!\n");
270 		ret = -EINVAL;
271 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
272 		goto out;
273 	}
274 
275 	for (i = 0; i < TASDEVICE_DEVICE_SUM; i++, offset++)
276 		fw_hdr->devs[i] = buf[offset];
277 
278 	fw_hdr->nconfig = get_unaligned_be32(&buf[offset]);
279 	offset += 4;
280 
281 	for (i = 0; i < TASDEVICE_CONFIG_SUM; i++) {
282 		fw_hdr->config_size[i] = get_unaligned_be32(&buf[offset]);
283 		offset += 4;
284 		total_config_sz += fw_hdr->config_size[i];
285 	}
286 
287 	if (fw_hdr->img_sz - total_config_sz != (unsigned int)offset) {
288 		dev_err(tas_priv->dev, "Bin file error!\n");
289 		ret = -EINVAL;
290 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
291 		goto out;
292 	}
293 
294 	cfg_info = kcalloc(fw_hdr->nconfig, sizeof(*cfg_info), GFP_KERNEL);
295 	if (!cfg_info) {
296 		ret = -ENOMEM;
297 		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
298 		goto out;
299 	}
300 	rca->cfg_info = cfg_info;
301 	rca->ncfgs = 0;
302 	for (i = 0; i < (int)fw_hdr->nconfig; i++) {
303 		rca->ncfgs += 1;
304 		cfg_info[i] = tasdevice_add_config(tas_priv, &buf[offset],
305 			fw_hdr->config_size[i], &ret);
306 		if (ret) {
307 			tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
308 			goto out;
309 		}
310 		offset += (int)fw_hdr->config_size[i];
311 	}
312 out:
313 	return ret;
314 }
315 EXPORT_SYMBOL_NS_GPL(tasdevice_rca_parser, SND_SOC_TAS2781_FMWLIB);
316 
fw_parse_block_data_kernel(struct tasdevice_fw * tas_fmw,struct tasdev_blk * block,const struct firmware * fmw,int offset)317 static int fw_parse_block_data_kernel(struct tasdevice_fw *tas_fmw,
318 	struct tasdev_blk *block, const struct firmware *fmw, int offset)
319 {
320 	const unsigned char *data = fmw->data;
321 
322 	if (offset + 16 > fmw->size) {
323 		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
324 		offset = -EINVAL;
325 		goto out;
326 	}
327 
328 	/* convert data[offset], data[offset + 1], data[offset + 2] and
329 	 * data[offset + 3] into host
330 	 */
331 	block->type = get_unaligned_be32(&data[offset]);
332 	offset += 4;
333 
334 	block->is_pchksum_present = data[offset];
335 	offset++;
336 
337 	block->pchksum = data[offset];
338 	offset++;
339 
340 	block->is_ychksum_present = data[offset];
341 	offset++;
342 
343 	block->ychksum = data[offset];
344 	offset++;
345 
346 	block->blk_size = get_unaligned_be32(&data[offset]);
347 	offset += 4;
348 
349 	block->nr_subblocks = get_unaligned_be32(&data[offset]);
350 	offset += 4;
351 
352 	if (offset + block->blk_size > fmw->size) {
353 		dev_err(tas_fmw->dev, "%s: nSublocks error\n", __func__);
354 		offset = -EINVAL;
355 		goto out;
356 	}
357 	/* instead of kzalloc+memcpy */
358 	block->data = kmemdup(&data[offset], block->blk_size, GFP_KERNEL);
359 	if (!block->data) {
360 		offset = -ENOMEM;
361 		goto out;
362 	}
363 	offset += block->blk_size;
364 
365 out:
366 	return offset;
367 }
368 
fw_parse_data_kernel(struct tasdevice_fw * tas_fmw,struct tasdevice_data * img_data,const struct firmware * fmw,int offset)369 static int fw_parse_data_kernel(struct tasdevice_fw *tas_fmw,
370 	struct tasdevice_data *img_data, const struct firmware *fmw,
371 	int offset)
372 {
373 	const unsigned char *data = fmw->data;
374 	struct tasdev_blk *blk;
375 	unsigned int i;
376 
377 	if (offset + 4 > fmw->size) {
378 		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
379 		offset = -EINVAL;
380 		goto out;
381 	}
382 	img_data->nr_blk = get_unaligned_be32(&data[offset]);
383 	offset += 4;
384 
385 	img_data->dev_blks = kcalloc(img_data->nr_blk,
386 		sizeof(struct tasdev_blk), GFP_KERNEL);
387 	if (!img_data->dev_blks) {
388 		offset = -ENOMEM;
389 		goto out;
390 	}
391 
392 	for (i = 0; i < img_data->nr_blk; i++) {
393 		blk = &(img_data->dev_blks[i]);
394 		offset = fw_parse_block_data_kernel(tas_fmw, blk, fmw, offset);
395 		if (offset < 0) {
396 			offset = -EINVAL;
397 			break;
398 		}
399 	}
400 
401 out:
402 	return offset;
403 }
404 
fw_parse_program_data_kernel(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)405 static int fw_parse_program_data_kernel(
406 	struct tasdevice_priv *tas_priv, struct tasdevice_fw *tas_fmw,
407 	const struct firmware *fmw, int offset)
408 {
409 	struct tasdevice_prog *program;
410 	unsigned int i;
411 
412 	for (i = 0; i < tas_fmw->nr_programs; i++) {
413 		program = &(tas_fmw->programs[i]);
414 		if (offset + 72 > fmw->size) {
415 			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
416 			offset = -EINVAL;
417 			goto out;
418 		}
419 		/*skip 72 unused byts*/
420 		offset += 72;
421 
422 		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
423 			fmw, offset);
424 		if (offset < 0)
425 			goto out;
426 	}
427 
428 out:
429 	return offset;
430 }
431 
fw_parse_configuration_data_kernel(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)432 static int fw_parse_configuration_data_kernel(
433 	struct tasdevice_priv *tas_priv,
434 	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
435 {
436 	const unsigned char *data = fmw->data;
437 	struct tasdevice_config *config;
438 	unsigned int i;
439 
440 	for (i = 0; i < tas_fmw->nr_configurations; i++) {
441 		config = &(tas_fmw->configs[i]);
442 		if (offset + 80 > fmw->size) {
443 			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
444 			offset = -EINVAL;
445 			goto out;
446 		}
447 		memcpy(config->name, &data[offset], 64);
448 		/*skip extra 16 bytes*/
449 		offset += 80;
450 
451 		offset = fw_parse_data_kernel(tas_fmw, &(config->dev_data),
452 			fmw, offset);
453 		if (offset < 0)
454 			goto out;
455 	}
456 
457 out:
458 	return offset;
459 }
460 
fw_parse_variable_header_kernel(struct tasdevice_priv * tas_priv,const struct firmware * fmw,int offset)461 static int fw_parse_variable_header_kernel(
462 	struct tasdevice_priv *tas_priv, const struct firmware *fmw,
463 	int offset)
464 {
465 	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
466 	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
467 	struct tasdevice_prog *program;
468 	struct tasdevice_config *config;
469 	const unsigned char *buf = fmw->data;
470 	unsigned short max_confs;
471 	unsigned int i;
472 
473 	if (offset + 12 + 4 * TASDEVICE_MAXPROGRAM_NUM_KERNEL > fmw->size) {
474 		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
475 		offset = -EINVAL;
476 		goto out;
477 	}
478 	fw_hdr->device_family = get_unaligned_be16(&buf[offset]);
479 	if (fw_hdr->device_family != 0) {
480 		dev_err(tas_priv->dev, "%s:not TAS device\n", __func__);
481 		offset = -EINVAL;
482 		goto out;
483 	}
484 	offset += 2;
485 	fw_hdr->device = get_unaligned_be16(&buf[offset]);
486 	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
487 		fw_hdr->device == 6) {
488 		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
489 		offset = -EINVAL;
490 		goto out;
491 	}
492 	offset += 2;
493 	fw_hdr->ndev = deviceNumber[fw_hdr->device];
494 
495 	if (fw_hdr->ndev != tas_priv->ndev) {
496 		dev_err(tas_priv->dev,
497 			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
498 			__func__, fw_hdr->ndev, tas_priv->ndev);
499 		offset = -EINVAL;
500 		goto out;
501 	}
502 
503 	tas_fmw->nr_programs = get_unaligned_be32(&buf[offset]);
504 	offset += 4;
505 
506 	if (tas_fmw->nr_programs == 0 || tas_fmw->nr_programs >
507 		TASDEVICE_MAXPROGRAM_NUM_KERNEL) {
508 		dev_err(tas_priv->dev, "mnPrograms is invalid\n");
509 		offset = -EINVAL;
510 		goto out;
511 	}
512 
513 	tas_fmw->programs = kcalloc(tas_fmw->nr_programs,
514 		sizeof(struct tasdevice_prog), GFP_KERNEL);
515 	if (!tas_fmw->programs) {
516 		offset = -ENOMEM;
517 		goto out;
518 	}
519 
520 	for (i = 0; i < tas_fmw->nr_programs; i++) {
521 		program = &(tas_fmw->programs[i]);
522 		program->prog_size = get_unaligned_be32(&buf[offset]);
523 		offset += 4;
524 	}
525 
526 	/* Skip the unused prog_size */
527 	offset += 4 * (TASDEVICE_MAXPROGRAM_NUM_KERNEL - tas_fmw->nr_programs);
528 
529 	tas_fmw->nr_configurations = get_unaligned_be32(&buf[offset]);
530 	offset += 4;
531 
532 	/* The max number of config in firmware greater than 4 pieces of
533 	 * tas2781s is different from the one lower than 4 pieces of
534 	 * tas2781s.
535 	 */
536 	max_confs = (fw_hdr->ndev >= 4) ?
537 		TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS :
538 		TASDEVICE_MAXCONFIG_NUM_KERNEL;
539 	if (tas_fmw->nr_configurations == 0 ||
540 		tas_fmw->nr_configurations > max_confs) {
541 		dev_err(tas_priv->dev, "%s: Conf is invalid\n", __func__);
542 		offset = -EINVAL;
543 		goto out;
544 	}
545 
546 	if (offset + 4 * max_confs > fmw->size) {
547 		dev_err(tas_priv->dev, "%s: mpConfigurations err\n", __func__);
548 		offset = -EINVAL;
549 		goto out;
550 	}
551 
552 	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
553 		sizeof(struct tasdevice_config), GFP_KERNEL);
554 	if (!tas_fmw->configs) {
555 		offset = -ENOMEM;
556 		goto out;
557 	}
558 
559 	for (i = 0; i < tas_fmw->nr_programs; i++) {
560 		config = &(tas_fmw->configs[i]);
561 		config->cfg_size = get_unaligned_be32(&buf[offset]);
562 		offset += 4;
563 	}
564 
565 	/* Skip the unused configs */
566 	offset += 4 * (max_confs - tas_fmw->nr_programs);
567 
568 out:
569 	return offset;
570 }
571 
tasdevice_process_block(void * context,unsigned char * data,unsigned char dev_idx,int sublocksize)572 static int tasdevice_process_block(void *context, unsigned char *data,
573 	unsigned char dev_idx, int sublocksize)
574 {
575 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
576 	int subblk_offset, chn, chnend, rc;
577 	unsigned char subblk_typ = data[1];
578 	int blktyp = dev_idx & 0xC0;
579 	int idx = dev_idx & 0x3F;
580 	bool is_err = false;
581 
582 	if (idx) {
583 		chn = idx - 1;
584 		chnend = idx;
585 	} else {
586 		chn = 0;
587 		chnend = tas_priv->ndev;
588 	}
589 
590 	for (; chn < chnend; chn++) {
591 		if (tas_priv->tasdevice[chn].is_loading == false)
592 			continue;
593 
594 		is_err = false;
595 		subblk_offset = 2;
596 		switch (subblk_typ) {
597 		case TASDEVICE_CMD_SING_W: {
598 			int i;
599 			unsigned short len = get_unaligned_be16(&data[2]);
600 
601 			subblk_offset += 2;
602 			if (subblk_offset + 4 * len > sublocksize) {
603 				dev_err(tas_priv->dev,
604 					"process_block: Out of boundary\n");
605 				is_err = true;
606 				break;
607 			}
608 
609 			for (i = 0; i < len; i++) {
610 				rc = tasdevice_dev_write(tas_priv, chn,
611 					TASDEVICE_REG(data[subblk_offset],
612 						data[subblk_offset + 1],
613 						data[subblk_offset + 2]),
614 					data[subblk_offset + 3]);
615 				if (rc < 0) {
616 					is_err = true;
617 					dev_err(tas_priv->dev,
618 					"process_block: single write error\n");
619 				}
620 				subblk_offset += 4;
621 			}
622 		}
623 			break;
624 		case TASDEVICE_CMD_BURST: {
625 			unsigned short len = get_unaligned_be16(&data[2]);
626 
627 			subblk_offset += 2;
628 			if (subblk_offset + 4 + len > sublocksize) {
629 				dev_err(tas_priv->dev,
630 					"%s: BST Out of boundary\n",
631 					__func__);
632 				is_err = true;
633 				break;
634 			}
635 			if (len % 4) {
636 				dev_err(tas_priv->dev,
637 					"%s:Bst-len(%u)not div by 4\n",
638 					__func__, len);
639 				break;
640 			}
641 
642 			rc = tasdevice_dev_bulk_write(tas_priv, chn,
643 				TASDEVICE_REG(data[subblk_offset],
644 				data[subblk_offset + 1],
645 				data[subblk_offset + 2]),
646 				&(data[subblk_offset + 4]), len);
647 			if (rc < 0) {
648 				is_err = true;
649 				dev_err(tas_priv->dev,
650 					"%s: bulk_write error = %d\n",
651 					__func__, rc);
652 			}
653 			subblk_offset += (len + 4);
654 		}
655 			break;
656 		case TASDEVICE_CMD_DELAY: {
657 			unsigned int sleep_time = 0;
658 
659 			if (subblk_offset + 2 > sublocksize) {
660 				dev_err(tas_priv->dev,
661 					"%s: delay Out of boundary\n",
662 					__func__);
663 				is_err = true;
664 				break;
665 			}
666 			sleep_time = get_unaligned_be16(&data[2]) * 1000;
667 			usleep_range(sleep_time, sleep_time + 50);
668 			subblk_offset += 2;
669 		}
670 			break;
671 		case TASDEVICE_CMD_FIELD_W:
672 			if (subblk_offset + 6 > sublocksize) {
673 				dev_err(tas_priv->dev,
674 					"%s: bit write Out of boundary\n",
675 					__func__);
676 				is_err = true;
677 				break;
678 			}
679 			rc = tasdevice_dev_update_bits(tas_priv, chn,
680 				TASDEVICE_REG(data[subblk_offset + 2],
681 				data[subblk_offset + 3],
682 				data[subblk_offset + 4]),
683 				data[subblk_offset + 1],
684 				data[subblk_offset + 5]);
685 			if (rc < 0) {
686 				is_err = true;
687 				dev_err(tas_priv->dev,
688 					"%s: update_bits error = %d\n",
689 					__func__, rc);
690 			}
691 			subblk_offset += 6;
692 			break;
693 		default:
694 			break;
695 		}
696 		if (is_err == true && blktyp != 0) {
697 			if (blktyp == 0x80) {
698 				tas_priv->tasdevice[chn].cur_prog = -1;
699 				tas_priv->tasdevice[chn].cur_conf = -1;
700 			} else
701 				tas_priv->tasdevice[chn].cur_conf = -1;
702 		}
703 	}
704 
705 	return subblk_offset;
706 }
707 
tasdevice_select_cfg_blk(void * pContext,int conf_no,unsigned char block_type)708 void tasdevice_select_cfg_blk(void *pContext, int conf_no,
709 	unsigned char block_type)
710 {
711 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) pContext;
712 	struct tasdevice_rca *rca = &(tas_priv->rcabin);
713 	struct tasdevice_config_info **cfg_info = rca->cfg_info;
714 	struct tasdev_blk_data **blk_data;
715 	int j, k, chn, chnend;
716 
717 	if (conf_no >= rca->ncfgs || conf_no < 0 || !cfg_info) {
718 		dev_err(tas_priv->dev, "conf_no should be not more than %u\n",
719 			rca->ncfgs);
720 		return;
721 	}
722 	blk_data = cfg_info[conf_no]->blk_data;
723 
724 	for (j = 0; j < (int)cfg_info[conf_no]->real_nblocks; j++) {
725 		unsigned int length = 0, rc = 0;
726 
727 		if (block_type > 5 || block_type < 2) {
728 			dev_err(tas_priv->dev,
729 				"block_type should be in range from 2 to 5\n");
730 			break;
731 		}
732 		if (block_type != blk_data[j]->block_type)
733 			continue;
734 
735 		for (k = 0; k < (int)blk_data[j]->n_subblks; k++) {
736 			if (blk_data[j]->dev_idx) {
737 				chn = blk_data[j]->dev_idx - 1;
738 				chnend = blk_data[j]->dev_idx;
739 			} else {
740 				chn = 0;
741 				chnend = tas_priv->ndev;
742 			}
743 			for (; chn < chnend; chn++)
744 				tas_priv->tasdevice[chn].is_loading = true;
745 
746 			rc = tasdevice_process_block(tas_priv,
747 				blk_data[j]->regdata + length,
748 				blk_data[j]->dev_idx,
749 				blk_data[j]->block_size - length);
750 			length += rc;
751 			if (blk_data[j]->block_size < length) {
752 				dev_err(tas_priv->dev,
753 					"%s: %u %u out of boundary\n",
754 					__func__, length,
755 					blk_data[j]->block_size);
756 				break;
757 			}
758 		}
759 		if (length != blk_data[j]->block_size)
760 			dev_err(tas_priv->dev, "%s: %u %u size is not same\n",
761 				__func__, length, blk_data[j]->block_size);
762 	}
763 }
764 EXPORT_SYMBOL_NS_GPL(tasdevice_select_cfg_blk, SND_SOC_TAS2781_FMWLIB);
765 
tasdevice_load_block_kernel(struct tasdevice_priv * tasdevice,struct tasdev_blk * block)766 static int tasdevice_load_block_kernel(
767 	struct tasdevice_priv *tasdevice, struct tasdev_blk *block)
768 {
769 	struct tasdevice_dspfw_hdr *fw_hdr = &(tasdevice->fmw->fw_hdr);
770 	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
771 	const unsigned int blk_size = block->blk_size;
772 	unsigned int i, length;
773 	unsigned char *data = block->data;
774 	unsigned char dev_idx = 0;
775 
776 	if (fw_fixed_hdr->ppcver >= PPC3_VERSION_TAS2781) {
777 		switch (block->type) {
778 		case MAIN_ALL_DEVICES_1X:
779 			dev_idx = 0x80;
780 			break;
781 		case MAIN_DEVICE_A_1X:
782 			dev_idx = 0x81;
783 			break;
784 		case COEFF_DEVICE_A_1X:
785 		case PRE_DEVICE_A_1X:
786 		case PRE_SOFTWARE_RESET_DEVICE_A:
787 		case POST_SOFTWARE_RESET_DEVICE_A:
788 			dev_idx = 0xC1;
789 			break;
790 		case MAIN_DEVICE_B_1X:
791 			dev_idx = 0x82;
792 			break;
793 		case COEFF_DEVICE_B_1X:
794 		case PRE_DEVICE_B_1X:
795 		case PRE_SOFTWARE_RESET_DEVICE_B:
796 		case POST_SOFTWARE_RESET_DEVICE_B:
797 			dev_idx = 0xC2;
798 			break;
799 		case MAIN_DEVICE_C_1X:
800 			dev_idx = 0x83;
801 			break;
802 		case COEFF_DEVICE_C_1X:
803 		case PRE_DEVICE_C_1X:
804 		case PRE_SOFTWARE_RESET_DEVICE_C:
805 		case POST_SOFTWARE_RESET_DEVICE_C:
806 			dev_idx = 0xC3;
807 			break;
808 		case MAIN_DEVICE_D_1X:
809 			dev_idx = 0x84;
810 			break;
811 		case COEFF_DEVICE_D_1X:
812 		case PRE_DEVICE_D_1X:
813 		case PRE_SOFTWARE_RESET_DEVICE_D:
814 		case POST_SOFTWARE_RESET_DEVICE_D:
815 			dev_idx = 0xC4;
816 			break;
817 		default:
818 			dev_info(tasdevice->dev,
819 				"%s: load block: Other Type = 0x%02x\n",
820 				__func__, block->type);
821 			break;
822 		}
823 	} else if (fw_fixed_hdr->ppcver >=
824 	PPC3_VERSION) {
825 		switch (block->type) {
826 		case MAIN_ALL_DEVICES_1X:
827 			dev_idx = 0x80;
828 			break;
829 		case MAIN_DEVICE_A_1X:
830 			dev_idx = 0x81;
831 			break;
832 		case COEFF_DEVICE_A_1X:
833 		case PRE_DEVICE_A_1X:
834 			dev_idx = 0xC1;
835 			break;
836 		case MAIN_DEVICE_B_1X:
837 			dev_idx = 0x82;
838 			break;
839 		case COEFF_DEVICE_B_1X:
840 		case PRE_DEVICE_B_1X:
841 			dev_idx = 0xC2;
842 			break;
843 		case MAIN_DEVICE_C_1X:
844 			dev_idx = 0x83;
845 			break;
846 		case COEFF_DEVICE_C_1X:
847 		case PRE_DEVICE_C_1X:
848 			dev_idx = 0xC3;
849 			break;
850 		case MAIN_DEVICE_D_1X:
851 			dev_idx = 0x84;
852 			break;
853 		case COEFF_DEVICE_D_1X:
854 		case PRE_DEVICE_D_1X:
855 			dev_idx = 0xC4;
856 			break;
857 		default:
858 			dev_info(tasdevice->dev,
859 				"%s: load block: Other Type = 0x%02x\n",
860 				__func__, block->type);
861 			break;
862 		}
863 	} else {
864 		switch (block->type) {
865 		case MAIN_ALL_DEVICES:
866 			dev_idx = 0|0x80;
867 			break;
868 		case MAIN_DEVICE_A:
869 			dev_idx = 0x81;
870 			break;
871 		case COEFF_DEVICE_A:
872 		case PRE_DEVICE_A:
873 			dev_idx = 0xC1;
874 			break;
875 		case MAIN_DEVICE_B:
876 			dev_idx = 0x82;
877 			break;
878 		case COEFF_DEVICE_B:
879 		case PRE_DEVICE_B:
880 			dev_idx = 0xC2;
881 			break;
882 		case MAIN_DEVICE_C:
883 			dev_idx = 0x83;
884 			break;
885 		case COEFF_DEVICE_C:
886 		case PRE_DEVICE_C:
887 			dev_idx = 0xC3;
888 			break;
889 		case MAIN_DEVICE_D:
890 			dev_idx = 0x84;
891 			break;
892 		case COEFF_DEVICE_D:
893 		case PRE_DEVICE_D:
894 			dev_idx = 0xC4;
895 			break;
896 		default:
897 			dev_info(tasdevice->dev,
898 				"%s: load block: Other Type = 0x%02x\n",
899 				__func__, block->type);
900 			break;
901 		}
902 	}
903 
904 	for (i = 0, length = 0; i < block->nr_subblocks; i++) {
905 		int rc = tasdevice_process_block(tasdevice, data + length,
906 			dev_idx, blk_size - length);
907 		if (rc < 0) {
908 			dev_err(tasdevice->dev,
909 				"%s: %u %u sublock write error\n",
910 				__func__, length, blk_size);
911 			break;
912 		}
913 		length += (unsigned int)rc;
914 		if (blk_size < length) {
915 			dev_err(tasdevice->dev, "%s: %u %u out of boundary\n",
916 				__func__, length, blk_size);
917 			break;
918 		}
919 	}
920 
921 	return 0;
922 }
923 
fw_parse_variable_hdr(struct tasdevice_priv * tas_priv,struct tasdevice_dspfw_hdr * fw_hdr,const struct firmware * fmw,int offset)924 static int fw_parse_variable_hdr(struct tasdevice_priv
925 	*tas_priv, struct tasdevice_dspfw_hdr *fw_hdr,
926 	const struct firmware *fmw, int offset)
927 {
928 	const unsigned char *buf = fmw->data;
929 	int len = strlen((char *)&buf[offset]);
930 
931 	len++;
932 
933 	if (offset + len + 8 > fmw->size) {
934 		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
935 		offset = -EINVAL;
936 		goto out;
937 	}
938 
939 	offset += len;
940 
941 	fw_hdr->device_family = get_unaligned_be32(&buf[offset]);
942 	if (fw_hdr->device_family != 0) {
943 		dev_err(tas_priv->dev, "%s: not TAS device\n", __func__);
944 		offset = -EINVAL;
945 		goto out;
946 	}
947 	offset += 4;
948 
949 	fw_hdr->device = get_unaligned_be32(&buf[offset]);
950 	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
951 		fw_hdr->device == 6) {
952 		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
953 		offset = -EINVAL;
954 		goto out;
955 	}
956 	offset += 4;
957 	fw_hdr->ndev = deviceNumber[fw_hdr->device];
958 
959 out:
960 	return offset;
961 }
962 
fw_parse_variable_header_git(struct tasdevice_priv * tas_priv,const struct firmware * fmw,int offset)963 static int fw_parse_variable_header_git(struct tasdevice_priv
964 	*tas_priv, const struct firmware *fmw, int offset)
965 {
966 	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
967 	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
968 
969 	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
970 	if (offset < 0)
971 		goto out;
972 	if (fw_hdr->ndev != tas_priv->ndev) {
973 		dev_err(tas_priv->dev,
974 			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
975 			__func__, fw_hdr->ndev, tas_priv->ndev);
976 		offset = -EINVAL;
977 	}
978 
979 out:
980 	return offset;
981 }
982 
fw_parse_block_data(struct tasdevice_fw * tas_fmw,struct tasdev_blk * block,const struct firmware * fmw,int offset)983 static int fw_parse_block_data(struct tasdevice_fw *tas_fmw,
984 	struct tasdev_blk *block, const struct firmware *fmw, int offset)
985 {
986 	unsigned char *data = (unsigned char *)fmw->data;
987 	int n;
988 
989 	if (offset + 8 > fmw->size) {
990 		dev_err(tas_fmw->dev, "%s: Type error\n", __func__);
991 		offset = -EINVAL;
992 		goto out;
993 	}
994 	block->type = get_unaligned_be32(&data[offset]);
995 	offset += 4;
996 
997 	if (tas_fmw->fw_hdr.fixed_hdr.drv_ver >= PPC_DRIVER_CRCCHK) {
998 		if (offset + 8 > fmw->size) {
999 			dev_err(tas_fmw->dev, "PChkSumPresent error\n");
1000 			offset = -EINVAL;
1001 			goto out;
1002 		}
1003 		block->is_pchksum_present = data[offset];
1004 		offset++;
1005 
1006 		block->pchksum = data[offset];
1007 		offset++;
1008 
1009 		block->is_ychksum_present = data[offset];
1010 		offset++;
1011 
1012 		block->ychksum = data[offset];
1013 		offset++;
1014 	} else {
1015 		block->is_pchksum_present = 0;
1016 		block->is_ychksum_present = 0;
1017 	}
1018 
1019 	block->nr_cmds = get_unaligned_be32(&data[offset]);
1020 	offset += 4;
1021 
1022 	n = block->nr_cmds * 4;
1023 	if (offset + n > fmw->size) {
1024 		dev_err(tas_fmw->dev,
1025 			"%s: File Size(%lu) error offset = %d n = %d\n",
1026 			__func__, (unsigned long)fmw->size, offset, n);
1027 		offset = -EINVAL;
1028 		goto out;
1029 	}
1030 	/* instead of kzalloc+memcpy */
1031 	block->data = kmemdup(&data[offset], n, GFP_KERNEL);
1032 	if (!block->data) {
1033 		offset = -ENOMEM;
1034 		goto out;
1035 	}
1036 	offset += n;
1037 
1038 out:
1039 	return offset;
1040 }
1041 
1042 /* When parsing error occurs, all the memory resource will be released
1043  * in the end of tasdevice_rca_ready.
1044  */
fw_parse_data(struct tasdevice_fw * tas_fmw,struct tasdevice_data * img_data,const struct firmware * fmw,int offset)1045 static int fw_parse_data(struct tasdevice_fw *tas_fmw,
1046 	struct tasdevice_data *img_data, const struct firmware *fmw,
1047 	int offset)
1048 {
1049 	const unsigned char *data = (unsigned char *)fmw->data;
1050 	struct tasdev_blk *blk;
1051 	unsigned int i;
1052 	int n;
1053 
1054 	if (offset + 64 > fmw->size) {
1055 		dev_err(tas_fmw->dev, "%s: Name error\n", __func__);
1056 		offset = -EINVAL;
1057 		goto out;
1058 	}
1059 	memcpy(img_data->name, &data[offset], 64);
1060 	offset += 64;
1061 
1062 	n = strlen((char *)&data[offset]);
1063 	n++;
1064 	if (offset + n + 2 > fmw->size) {
1065 		dev_err(tas_fmw->dev, "%s: Description error\n", __func__);
1066 		offset = -EINVAL;
1067 		goto out;
1068 	}
1069 	offset += n;
1070 	img_data->nr_blk = get_unaligned_be16(&data[offset]);
1071 	offset += 2;
1072 
1073 	img_data->dev_blks = kcalloc(img_data->nr_blk,
1074 		sizeof(struct tasdev_blk), GFP_KERNEL);
1075 	if (!img_data->dev_blks) {
1076 		offset = -ENOMEM;
1077 		goto out;
1078 	}
1079 	for (i = 0; i < img_data->nr_blk; i++) {
1080 		blk = &(img_data->dev_blks[i]);
1081 		offset = fw_parse_block_data(tas_fmw, blk, fmw, offset);
1082 		if (offset < 0) {
1083 			offset = -EINVAL;
1084 			goto out;
1085 		}
1086 	}
1087 
1088 out:
1089 	return offset;
1090 }
1091 
1092 /* When parsing error occurs, all the memory resource will be released
1093  * in the end of tasdevice_rca_ready.
1094  */
fw_parse_program_data(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)1095 static int fw_parse_program_data(struct tasdevice_priv *tas_priv,
1096 	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
1097 {
1098 	unsigned char *buf = (unsigned char *)fmw->data;
1099 	struct tasdevice_prog *program;
1100 	int i;
1101 
1102 	if (offset + 2 > fmw->size) {
1103 		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
1104 		offset = -EINVAL;
1105 		goto out;
1106 	}
1107 	tas_fmw->nr_programs = get_unaligned_be16(&buf[offset]);
1108 	offset += 2;
1109 
1110 	if (tas_fmw->nr_programs == 0) {
1111 		/*Not error in calibration Data file, return directly*/
1112 		dev_info(tas_priv->dev, "%s: No Programs data, maybe calbin\n",
1113 			__func__);
1114 		goto out;
1115 	}
1116 
1117 	tas_fmw->programs =
1118 		kcalloc(tas_fmw->nr_programs, sizeof(struct tasdevice_prog),
1119 			GFP_KERNEL);
1120 	if (!tas_fmw->programs) {
1121 		offset = -ENOMEM;
1122 		goto out;
1123 	}
1124 	for (i = 0; i < tas_fmw->nr_programs; i++) {
1125 		int n = 0;
1126 
1127 		program = &(tas_fmw->programs[i]);
1128 		if (offset + 64 > fmw->size) {
1129 			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
1130 			offset = -EINVAL;
1131 			goto out;
1132 		}
1133 		offset += 64;
1134 
1135 		n = strlen((char *)&buf[offset]);
1136 		/* skip '\0' and 5 unused bytes */
1137 		n += 6;
1138 		if (offset + n > fmw->size) {
1139 			dev_err(tas_priv->dev, "Description err\n");
1140 			offset = -EINVAL;
1141 			goto out;
1142 		}
1143 
1144 		offset += n;
1145 
1146 		offset = fw_parse_data(tas_fmw, &(program->dev_data), fmw,
1147 			offset);
1148 		if (offset < 0)
1149 			goto out;
1150 	}
1151 
1152 out:
1153 	return offset;
1154 }
1155 
1156 /* When parsing error occurs, all the memory resource will be released
1157  * in the end of tasdevice_rca_ready.
1158  */
fw_parse_configuration_data(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)1159 static int fw_parse_configuration_data(
1160 	struct tasdevice_priv *tas_priv,
1161 	struct tasdevice_fw *tas_fmw,
1162 	const struct firmware *fmw, int offset)
1163 {
1164 	unsigned char *data = (unsigned char *)fmw->data;
1165 	struct tasdevice_config *config;
1166 	unsigned int i;
1167 	int n;
1168 
1169 	if (offset + 2 > fmw->size) {
1170 		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
1171 		offset = -EINVAL;
1172 		goto out;
1173 	}
1174 	tas_fmw->nr_configurations = get_unaligned_be16(&data[offset]);
1175 	offset += 2;
1176 
1177 	if (tas_fmw->nr_configurations == 0) {
1178 		dev_err(tas_priv->dev, "%s: Conf is zero\n", __func__);
1179 		/*Not error for calibration Data file, return directly*/
1180 		goto out;
1181 	}
1182 	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
1183 			sizeof(struct tasdevice_config), GFP_KERNEL);
1184 	if (!tas_fmw->configs) {
1185 		offset = -ENOMEM;
1186 		goto out;
1187 	}
1188 	for (i = 0; i < tas_fmw->nr_configurations; i++) {
1189 		config = &(tas_fmw->configs[i]);
1190 		if (offset + 64 > fmw->size) {
1191 			dev_err(tas_priv->dev, "File Size err\n");
1192 			offset = -EINVAL;
1193 			goto out;
1194 		}
1195 		memcpy(config->name, &data[offset], 64);
1196 		offset += 64;
1197 
1198 		n = strlen((char *)&data[offset]);
1199 		n += 15;
1200 		if (offset + n > fmw->size) {
1201 			dev_err(tas_priv->dev, "Description err\n");
1202 			offset = -EINVAL;
1203 			goto out;
1204 		}
1205 
1206 		offset += n;
1207 
1208 		offset = fw_parse_data(tas_fmw, &(config->dev_data),
1209 			fmw, offset);
1210 		if (offset < 0)
1211 			goto out;
1212 	}
1213 
1214 out:
1215 	return offset;
1216 }
1217 
check_inpage_yram_rg(struct tas_crc * cd,unsigned char reg,unsigned char len)1218 static bool check_inpage_yram_rg(struct tas_crc *cd,
1219 	unsigned char reg, unsigned char len)
1220 {
1221 	bool in = false;
1222 
1223 
1224 	if (reg <= TAS2781_YRAM5_END_REG &&
1225 		reg >= TAS2781_YRAM5_START_REG) {
1226 		if (reg + len > TAS2781_YRAM5_END_REG)
1227 			cd->len = TAS2781_YRAM5_END_REG - reg + 1;
1228 		else
1229 			cd->len = len;
1230 		cd->offset = reg;
1231 		in = true;
1232 	} else if (reg < TAS2781_YRAM5_START_REG) {
1233 		if (reg + len > TAS2781_YRAM5_START_REG) {
1234 			cd->offset = TAS2781_YRAM5_START_REG;
1235 			cd->len = len - TAS2781_YRAM5_START_REG + reg;
1236 			in = true;
1237 		}
1238 	}
1239 
1240 	return in;
1241 }
1242 
check_inpage_yram_bk1(struct tas_crc * cd,unsigned char page,unsigned char reg,unsigned char len)1243 static bool check_inpage_yram_bk1(struct tas_crc *cd,
1244 	unsigned char page, unsigned char reg, unsigned char len)
1245 {
1246 	bool in = false;
1247 
1248 	if (page == TAS2781_YRAM1_PAGE) {
1249 		if (reg >= TAS2781_YRAM1_START_REG) {
1250 			cd->offset = reg;
1251 			cd->len = len;
1252 			in = true;
1253 		} else if (reg + len > TAS2781_YRAM1_START_REG) {
1254 			cd->offset = TAS2781_YRAM1_START_REG;
1255 			cd->len = len - TAS2781_YRAM1_START_REG + reg;
1256 			in = true;
1257 		}
1258 	} else if (page == TAS2781_YRAM3_PAGE)
1259 		in = check_inpage_yram_rg(cd, reg, len);
1260 
1261 	return in;
1262 }
1263 
1264 /* Return Code:
1265  * true -- the registers are in the inpage yram
1266  * false -- the registers are NOT in the inpage yram
1267  */
check_inpage_yram(struct tas_crc * cd,unsigned char book,unsigned char page,unsigned char reg,unsigned char len)1268 static bool check_inpage_yram(struct tas_crc *cd, unsigned char book,
1269 	unsigned char page, unsigned char reg, unsigned char len)
1270 {
1271 	bool in = false;
1272 
1273 	if (book == TAS2781_YRAM_BOOK1) {
1274 		in = check_inpage_yram_bk1(cd, page, reg, len);
1275 		goto end;
1276 	}
1277 	if (book == TAS2781_YRAM_BOOK2 && page == TAS2781_YRAM5_PAGE)
1278 		in = check_inpage_yram_rg(cd, reg, len);
1279 
1280 end:
1281 	return in;
1282 }
1283 
check_inblock_yram_bk(struct tas_crc * cd,unsigned char page,unsigned char reg,unsigned char len)1284 static bool check_inblock_yram_bk(struct tas_crc *cd,
1285 	unsigned char page, unsigned char reg, unsigned char len)
1286 {
1287 	bool in = false;
1288 
1289 	if ((page >= TAS2781_YRAM4_START_PAGE &&
1290 		page <= TAS2781_YRAM4_END_PAGE) ||
1291 		(page >= TAS2781_YRAM2_START_PAGE &&
1292 		page <= TAS2781_YRAM2_END_PAGE)) {
1293 		if (reg <= TAS2781_YRAM2_END_REG &&
1294 			reg >= TAS2781_YRAM2_START_REG) {
1295 			cd->offset = reg;
1296 			cd->len = len;
1297 			in = true;
1298 		} else if (reg < TAS2781_YRAM2_START_REG) {
1299 			if (reg + len - 1 >= TAS2781_YRAM2_START_REG) {
1300 				cd->offset = TAS2781_YRAM2_START_REG;
1301 				cd->len = reg + len - TAS2781_YRAM2_START_REG;
1302 				in = true;
1303 			}
1304 		}
1305 	}
1306 
1307 	return in;
1308 }
1309 
1310 /* Return Code:
1311  * true -- the registers are in the inblock yram
1312  * false -- the registers are NOT in the inblock yram
1313  */
check_inblock_yram(struct tas_crc * cd,unsigned char book,unsigned char page,unsigned char reg,unsigned char len)1314 static bool check_inblock_yram(struct tas_crc *cd, unsigned char book,
1315 	unsigned char page, unsigned char reg, unsigned char len)
1316 {
1317 	bool in = false;
1318 
1319 	if (book == TAS2781_YRAM_BOOK1 || book == TAS2781_YRAM_BOOK2)
1320 		in = check_inblock_yram_bk(cd, page, reg, len);
1321 
1322 	return in;
1323 }
1324 
check_yram(struct tas_crc * cd,unsigned char book,unsigned char page,unsigned char reg,unsigned char len)1325 static bool check_yram(struct tas_crc *cd, unsigned char book,
1326 	unsigned char page, unsigned char reg, unsigned char len)
1327 {
1328 	bool in;
1329 
1330 	in = check_inpage_yram(cd, book, page, reg, len);
1331 	if (in)
1332 		goto end;
1333 	in = check_inblock_yram(cd, book, page, reg, len);
1334 
1335 end:
1336 	return in;
1337 }
1338 
tasdev_multibytes_chksum(struct tasdevice_priv * tasdevice,unsigned short chn,unsigned char book,unsigned char page,unsigned char reg,unsigned int len)1339 static int tasdev_multibytes_chksum(struct tasdevice_priv *tasdevice,
1340 	unsigned short chn, unsigned char book, unsigned char page,
1341 	unsigned char reg, unsigned int len)
1342 {
1343 	struct tas_crc crc_data;
1344 	unsigned char crc_chksum = 0;
1345 	unsigned char nBuf1[128];
1346 	int ret = 0;
1347 	int i;
1348 	bool in;
1349 
1350 	if ((reg + len - 1) > 127) {
1351 		ret = -EINVAL;
1352 		dev_err(tasdevice->dev, "firmware error\n");
1353 		goto end;
1354 	}
1355 
1356 	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
1357 		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
1358 		&& (reg == TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
1359 		&& (len == 4)) {
1360 		/*DSP swap command, pass */
1361 		ret = 0;
1362 		goto end;
1363 	}
1364 
1365 	in = check_yram(&crc_data, book, page, reg, len);
1366 	if (!in)
1367 		goto end;
1368 
1369 	if (len == 1) {
1370 		dev_err(tasdevice->dev, "firmware error\n");
1371 		ret = -EINVAL;
1372 		goto end;
1373 	}
1374 
1375 	ret = tasdevice_dev_bulk_read(tasdevice, chn,
1376 		TASDEVICE_REG(book, page, crc_data.offset),
1377 		nBuf1, crc_data.len);
1378 	if (ret < 0)
1379 		goto end;
1380 
1381 	for (i = 0; i < crc_data.len; i++) {
1382 		if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
1383 			&& (page == TASDEVICE_PAGE_ID(
1384 			TAS2781_SA_COEFF_SWAP_REG))
1385 			&& ((i + crc_data.offset)
1386 			>= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
1387 			&& ((i + crc_data.offset)
1388 			<= (TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG)
1389 			+ 4)))
1390 			/*DSP swap command, bypass */
1391 			continue;
1392 		else
1393 			crc_chksum += crc8(tasdevice->crc8_lkp_tbl, &nBuf1[i],
1394 				1, 0);
1395 	}
1396 
1397 	ret = crc_chksum;
1398 
1399 end:
1400 	return ret;
1401 }
1402 
do_singlereg_checksum(struct tasdevice_priv * tasdevice,unsigned short chl,unsigned char book,unsigned char page,unsigned char reg,unsigned char val)1403 static int do_singlereg_checksum(struct tasdevice_priv *tasdevice,
1404 	unsigned short chl, unsigned char book, unsigned char page,
1405 	unsigned char reg, unsigned char val)
1406 {
1407 	struct tas_crc crc_data;
1408 	unsigned int nData1;
1409 	int ret = 0;
1410 	bool in;
1411 
1412 	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
1413 		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
1414 		&& (reg >= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
1415 		&& (reg <= (TASDEVICE_PAGE_REG(
1416 		TAS2781_SA_COEFF_SWAP_REG) + 4))) {
1417 		/*DSP swap command, pass */
1418 		ret = 0;
1419 		goto end;
1420 	}
1421 
1422 	in = check_yram(&crc_data, book, page, reg, 1);
1423 	if (!in)
1424 		goto end;
1425 	ret = tasdevice_dev_read(tasdevice, chl,
1426 		TASDEVICE_REG(book, page, reg), &nData1);
1427 	if (ret < 0)
1428 		goto end;
1429 
1430 	if (nData1 != val) {
1431 		dev_err(tasdevice->dev,
1432 			"B[0x%x]P[0x%x]R[0x%x] W[0x%x], R[0x%x]\n",
1433 			book, page, reg, val, nData1);
1434 		tasdevice->tasdevice[chl].err_code |= ERROR_YRAM_CRCCHK;
1435 		ret = -EAGAIN;
1436 		goto end;
1437 	}
1438 
1439 	ret = crc8(tasdevice->crc8_lkp_tbl, &val, 1, 0);
1440 
1441 end:
1442 	return ret;
1443 }
1444 
set_err_prg_cfg(unsigned int type,struct tasdevice * dev)1445 static void set_err_prg_cfg(unsigned int type, struct tasdevice *dev)
1446 {
1447 	if ((type == MAIN_ALL_DEVICES) || (type == MAIN_DEVICE_A)
1448 		|| (type == MAIN_DEVICE_B) || (type == MAIN_DEVICE_C)
1449 		|| (type == MAIN_DEVICE_D))
1450 		dev->cur_prog = -1;
1451 	else
1452 		dev->cur_conf = -1;
1453 }
1454 
tasdev_bytes_chksum(struct tasdevice_priv * tas_priv,struct tasdev_blk * block,int chn,unsigned char book,unsigned char page,unsigned char reg,unsigned int len,unsigned char val,unsigned char * crc_chksum)1455 static int tasdev_bytes_chksum(struct tasdevice_priv *tas_priv,
1456 	struct tasdev_blk *block, int chn, unsigned char book,
1457 	unsigned char page, unsigned char reg, unsigned int len,
1458 	unsigned char val, unsigned char *crc_chksum)
1459 {
1460 	int ret;
1461 
1462 	if (len > 1)
1463 		ret = tasdev_multibytes_chksum(tas_priv, chn, book, page, reg,
1464 			len);
1465 	else
1466 		ret = do_singlereg_checksum(tas_priv, chn, book, page, reg,
1467 			val);
1468 
1469 	if (ret > 0) {
1470 		*crc_chksum += (unsigned char)ret;
1471 		goto end;
1472 	}
1473 
1474 	if (ret != -EAGAIN)
1475 		goto end;
1476 
1477 	block->nr_retry--;
1478 	if (block->nr_retry > 0)
1479 		goto end;
1480 
1481 	set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);
1482 
1483 end:
1484 	return ret;
1485 }
1486 
tasdev_multibytes_wr(struct tasdevice_priv * tas_priv,struct tasdev_blk * block,int chn,unsigned char book,unsigned char page,unsigned char reg,unsigned char * data,unsigned int len,unsigned int * nr_cmds,unsigned char * crc_chksum)1487 static int tasdev_multibytes_wr(struct tasdevice_priv *tas_priv,
1488 	struct tasdev_blk *block, int chn, unsigned char book,
1489 	unsigned char page, unsigned char reg, unsigned char *data,
1490 	unsigned int len, unsigned int *nr_cmds,
1491 	unsigned char *crc_chksum)
1492 {
1493 	int ret;
1494 
1495 	if (len > 1) {
1496 		ret = tasdevice_dev_bulk_write(tas_priv, chn,
1497 			TASDEVICE_REG(book, page, reg), data + 3, len);
1498 		if (ret < 0)
1499 			goto end;
1500 		if (block->is_ychksum_present)
1501 			ret = tasdev_bytes_chksum(tas_priv, block, chn,
1502 				book, page, reg, len, 0, crc_chksum);
1503 	} else {
1504 		ret = tasdevice_dev_write(tas_priv, chn,
1505 			TASDEVICE_REG(book, page, reg), data[3]);
1506 		if (ret < 0)
1507 			goto end;
1508 		if (block->is_ychksum_present)
1509 			ret = tasdev_bytes_chksum(tas_priv, block, chn, book,
1510 				page, reg, 1, data[3], crc_chksum);
1511 	}
1512 
1513 	if (!block->is_ychksum_present || ret >= 0) {
1514 		*nr_cmds += 1;
1515 		if (len >= 2)
1516 			*nr_cmds += ((len - 2) / 4) + 1;
1517 	}
1518 
1519 end:
1520 	return ret;
1521 }
1522 
tasdev_block_chksum(struct tasdevice_priv * tas_priv,struct tasdev_blk * block,int chn)1523 static int tasdev_block_chksum(struct tasdevice_priv *tas_priv,
1524 	struct tasdev_blk *block, int chn)
1525 {
1526 	unsigned int nr_value;
1527 	int ret;
1528 
1529 	ret = tasdevice_dev_read(tas_priv, chn, TASDEVICE_I2CChecksum,
1530 		&nr_value);
1531 	if (ret < 0) {
1532 		dev_err(tas_priv->dev, "%s: Chn %d\n", __func__, chn);
1533 		set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);
1534 		goto end;
1535 	}
1536 
1537 	if ((nr_value & 0xff) != block->pchksum) {
1538 		dev_err(tas_priv->dev, "%s: Blk PChkSum Chn %d ", __func__,
1539 			chn);
1540 		dev_err(tas_priv->dev, "PChkSum = 0x%x, Reg = 0x%x\n",
1541 			block->pchksum, (nr_value & 0xff));
1542 		tas_priv->tasdevice[chn].err_code |= ERROR_PRAM_CRCCHK;
1543 		ret = -EAGAIN;
1544 		block->nr_retry--;
1545 
1546 		if (block->nr_retry <= 0)
1547 			set_err_prg_cfg(block->type,
1548 				&tas_priv->tasdevice[chn]);
1549 	} else
1550 		tas_priv->tasdevice[chn].err_code &= ~ERROR_PRAM_CRCCHK;
1551 
1552 end:
1553 	return ret;
1554 }
1555 
tasdev_load_blk(struct tasdevice_priv * tas_priv,struct tasdev_blk * block,int chn)1556 static int tasdev_load_blk(struct tasdevice_priv *tas_priv,
1557 	struct tasdev_blk *block, int chn)
1558 {
1559 	unsigned int sleep_time;
1560 	unsigned int len;
1561 	unsigned int nr_cmds;
1562 	unsigned char *data = block->data;
1563 	unsigned char crc_chksum = 0;
1564 	unsigned char offset;
1565 	unsigned char book;
1566 	unsigned char page;
1567 	unsigned char val;
1568 	int ret = 0;
1569 
1570 	while (block->nr_retry > 0) {
1571 		if (block->is_pchksum_present) {
1572 			ret = tasdevice_dev_write(tas_priv, chn,
1573 				TASDEVICE_I2CChecksum, 0);
1574 			if (ret < 0)
1575 				break;
1576 		}
1577 
1578 		if (block->is_ychksum_present)
1579 			crc_chksum = 0;
1580 
1581 		nr_cmds = 0;
1582 
1583 		while (nr_cmds < block->nr_cmds) {
1584 			data = block->data + nr_cmds * 4;
1585 
1586 			book = data[0];
1587 			page = data[1];
1588 			offset = data[2];
1589 			val = data[3];
1590 
1591 			nr_cmds++;
1592 			/*Single byte write*/
1593 			if (offset <= 0x7F) {
1594 				ret = tasdevice_dev_write(tas_priv, chn,
1595 					TASDEVICE_REG(book, page, offset),
1596 					val);
1597 				if (ret < 0)
1598 					goto end;
1599 				if (block->is_ychksum_present) {
1600 					ret = tasdev_bytes_chksum(tas_priv,
1601 						block, chn, book, page, offset,
1602 						1, val, &crc_chksum);
1603 					if (ret < 0)
1604 						break;
1605 				}
1606 				continue;
1607 			}
1608 			/*sleep command*/
1609 			if (offset == 0x81) {
1610 				/*book -- data[0] page -- data[1]*/
1611 				sleep_time = ((book << 8) + page)*1000;
1612 				usleep_range(sleep_time, sleep_time + 50);
1613 				continue;
1614 			}
1615 			/*Multiple bytes write*/
1616 			if (offset == 0x85) {
1617 				data += 4;
1618 				len = (book << 8) + page;
1619 				book = data[0];
1620 				page = data[1];
1621 				offset = data[2];
1622 				ret = tasdev_multibytes_wr(tas_priv,
1623 					block, chn, book, page, offset, data,
1624 					len, &nr_cmds, &crc_chksum);
1625 				if (ret < 0)
1626 					break;
1627 			}
1628 		}
1629 		if (ret == -EAGAIN) {
1630 			if (block->nr_retry > 0)
1631 				continue;
1632 		} else if (ret < 0) /*err in current device, skip it*/
1633 			break;
1634 
1635 		if (block->is_pchksum_present) {
1636 			ret = tasdev_block_chksum(tas_priv, block, chn);
1637 			if (ret == -EAGAIN) {
1638 				if (block->nr_retry > 0)
1639 					continue;
1640 			} else if (ret < 0) /*err in current device, skip it*/
1641 				break;
1642 		}
1643 
1644 		if (block->is_ychksum_present) {
1645 			/* TBD, open it when FW ready */
1646 			dev_err(tas_priv->dev,
1647 				"Blk YChkSum: FW = 0x%x, YCRC = 0x%x\n",
1648 				block->ychksum, crc_chksum);
1649 
1650 			tas_priv->tasdevice[chn].err_code &=
1651 				~ERROR_YRAM_CRCCHK;
1652 			ret = 0;
1653 		}
1654 		/*skip current blk*/
1655 		break;
1656 	}
1657 
1658 end:
1659 	return ret;
1660 }
1661 
tasdevice_load_block(struct tasdevice_priv * tas_priv,struct tasdev_blk * block)1662 static int tasdevice_load_block(struct tasdevice_priv *tas_priv,
1663 	struct tasdev_blk *block)
1664 {
1665 	int chnend = 0;
1666 	int ret = 0;
1667 	int chn = 0;
1668 	int rc = 0;
1669 
1670 	switch (block->type) {
1671 	case MAIN_ALL_DEVICES:
1672 		chn = 0;
1673 		chnend = tas_priv->ndev;
1674 		break;
1675 	case MAIN_DEVICE_A:
1676 	case COEFF_DEVICE_A:
1677 	case PRE_DEVICE_A:
1678 		chn = 0;
1679 		chnend = 1;
1680 		break;
1681 	case MAIN_DEVICE_B:
1682 	case COEFF_DEVICE_B:
1683 	case PRE_DEVICE_B:
1684 		chn = 1;
1685 		chnend = 2;
1686 		break;
1687 	case MAIN_DEVICE_C:
1688 	case COEFF_DEVICE_C:
1689 	case PRE_DEVICE_C:
1690 		chn = 2;
1691 		chnend = 3;
1692 		break;
1693 	case MAIN_DEVICE_D:
1694 	case COEFF_DEVICE_D:
1695 	case PRE_DEVICE_D:
1696 		chn = 3;
1697 		chnend = 4;
1698 		break;
1699 	default:
1700 		dev_dbg(tas_priv->dev, "load blk: Other Type = 0x%02x\n",
1701 			block->type);
1702 		break;
1703 	}
1704 
1705 	for (; chn < chnend; chn++) {
1706 		block->nr_retry = 6;
1707 		if (tas_priv->tasdevice[chn].is_loading == false)
1708 			continue;
1709 		ret = tasdev_load_blk(tas_priv, block, chn);
1710 		if (ret < 0)
1711 			dev_err(tas_priv->dev, "dev %d, Blk (%d) load error\n",
1712 				chn, block->type);
1713 		rc |= ret;
1714 	}
1715 
1716 	return rc;
1717 }
1718 
dspfw_default_callback(struct tasdevice_priv * tas_priv,unsigned int drv_ver,unsigned int ppcver)1719 static int dspfw_default_callback(struct tasdevice_priv *tas_priv,
1720 	unsigned int drv_ver, unsigned int ppcver)
1721 {
1722 	int rc = 0;
1723 
1724 	if (drv_ver == 0x100) {
1725 		if (ppcver >= PPC3_VERSION) {
1726 			tas_priv->fw_parse_variable_header =
1727 				fw_parse_variable_header_kernel;
1728 			tas_priv->fw_parse_program_data =
1729 				fw_parse_program_data_kernel;
1730 			tas_priv->fw_parse_configuration_data =
1731 				fw_parse_configuration_data_kernel;
1732 			tas_priv->tasdevice_load_block =
1733 				tasdevice_load_block_kernel;
1734 		} else {
1735 			switch (ppcver) {
1736 			case 0x00:
1737 				tas_priv->fw_parse_variable_header =
1738 					fw_parse_variable_header_git;
1739 				tas_priv->fw_parse_program_data =
1740 					fw_parse_program_data;
1741 				tas_priv->fw_parse_configuration_data =
1742 					fw_parse_configuration_data;
1743 				tas_priv->tasdevice_load_block =
1744 					tasdevice_load_block;
1745 				break;
1746 			default:
1747 				dev_err(tas_priv->dev,
1748 					"%s: PPCVer must be 0x0 or 0x%02x",
1749 					__func__, PPC3_VERSION);
1750 				dev_err(tas_priv->dev, " Current:0x%02x\n",
1751 					ppcver);
1752 				rc = -EINVAL;
1753 				break;
1754 			}
1755 		}
1756 	} else {
1757 		dev_err(tas_priv->dev,
1758 			"DrvVer must be 0x0, 0x230 or above 0x230 ");
1759 		dev_err(tas_priv->dev, "current is 0x%02x\n", drv_ver);
1760 		rc = -EINVAL;
1761 	}
1762 
1763 	return rc;
1764 }
1765 
load_calib_data(struct tasdevice_priv * tas_priv,struct tasdevice_data * dev_data)1766 static int load_calib_data(struct tasdevice_priv *tas_priv,
1767 	struct tasdevice_data *dev_data)
1768 {
1769 	struct tasdev_blk *block;
1770 	unsigned int i;
1771 	int ret = 0;
1772 
1773 	for (i = 0; i < dev_data->nr_blk; i++) {
1774 		block = &(dev_data->dev_blks[i]);
1775 		ret = tasdevice_load_block(tas_priv, block);
1776 		if (ret < 0)
1777 			break;
1778 	}
1779 
1780 	return ret;
1781 }
1782 
fw_parse_header(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)1783 static int fw_parse_header(struct tasdevice_priv *tas_priv,
1784 	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
1785 {
1786 	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
1787 	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
1788 	const unsigned char magic_number[] = { 0x35, 0x35, 0x35, 0x32 };
1789 	const unsigned char *buf = (unsigned char *)fmw->data;
1790 
1791 	if (offset + 92 > fmw->size) {
1792 		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
1793 		offset = -EINVAL;
1794 		goto out;
1795 	}
1796 	if (memcmp(&buf[offset], magic_number, 4)) {
1797 		dev_err(tas_priv->dev, "%s: Magic num NOT match\n", __func__);
1798 		offset = -EINVAL;
1799 		goto out;
1800 	}
1801 	offset += 4;
1802 
1803 	/* Convert data[offset], data[offset + 1], data[offset + 2] and
1804 	 * data[offset + 3] into host
1805 	 */
1806 	fw_fixed_hdr->fwsize = get_unaligned_be32(&buf[offset]);
1807 	offset += 4;
1808 	if (fw_fixed_hdr->fwsize != fmw->size) {
1809 		dev_err(tas_priv->dev, "File size not match, %lu %u",
1810 			(unsigned long)fmw->size, fw_fixed_hdr->fwsize);
1811 		offset = -EINVAL;
1812 		goto out;
1813 	}
1814 	offset += 4;
1815 	fw_fixed_hdr->ppcver = get_unaligned_be32(&buf[offset]);
1816 	offset += 8;
1817 	fw_fixed_hdr->drv_ver = get_unaligned_be32(&buf[offset]);
1818 	offset += 72;
1819 
1820  out:
1821 	return offset;
1822 }
1823 
fw_parse_variable_hdr_cal(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)1824 static int fw_parse_variable_hdr_cal(struct tasdevice_priv *tas_priv,
1825 	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
1826 {
1827 	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
1828 
1829 	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
1830 	if (offset < 0)
1831 		goto out;
1832 	if (fw_hdr->ndev != 1) {
1833 		dev_err(tas_priv->dev,
1834 			"%s: calbin must be 1, but currently ndev(%u)\n",
1835 			__func__, fw_hdr->ndev);
1836 		offset = -EINVAL;
1837 	}
1838 
1839 out:
1840 	return offset;
1841 }
1842 
1843 /* When calibrated data parsing error occurs, DSP can still work with default
1844  * calibrated data, memory resource related to calibrated data will be
1845  * released in the tasdevice_codec_remove.
1846  */
fw_parse_calibration_data(struct tasdevice_priv * tas_priv,struct tasdevice_fw * tas_fmw,const struct firmware * fmw,int offset)1847 static int fw_parse_calibration_data(struct tasdevice_priv *tas_priv,
1848 	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
1849 {
1850 	struct tasdevice_calibration *calibration;
1851 	unsigned char *data = (unsigned char *)fmw->data;
1852 	unsigned int i, n;
1853 
1854 	if (offset + 2 > fmw->size) {
1855 		dev_err(tas_priv->dev, "%s: Calibrations error\n", __func__);
1856 		offset = -EINVAL;
1857 		goto out;
1858 	}
1859 	tas_fmw->nr_calibrations = get_unaligned_be16(&data[offset]);
1860 	offset += 2;
1861 
1862 	if (tas_fmw->nr_calibrations != 1) {
1863 		dev_err(tas_priv->dev,
1864 			"%s: only supports one calibration (%d)!\n",
1865 			__func__, tas_fmw->nr_calibrations);
1866 		goto out;
1867 	}
1868 
1869 	tas_fmw->calibrations = kcalloc(tas_fmw->nr_calibrations,
1870 		sizeof(struct tasdevice_calibration), GFP_KERNEL);
1871 	if (!tas_fmw->calibrations) {
1872 		offset = -ENOMEM;
1873 		goto out;
1874 	}
1875 	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
1876 		if (offset + 64 > fmw->size) {
1877 			dev_err(tas_priv->dev, "Calibrations error\n");
1878 			offset = -EINVAL;
1879 			goto out;
1880 		}
1881 		calibration = &(tas_fmw->calibrations[i]);
1882 		offset += 64;
1883 
1884 		n = strlen((char *)&data[offset]);
1885 		/* skip '\0' and 2 unused bytes */
1886 		n += 3;
1887 		if (offset + n > fmw->size) {
1888 			dev_err(tas_priv->dev, "Description err\n");
1889 			offset = -EINVAL;
1890 			goto out;
1891 		}
1892 		offset += n;
1893 
1894 		offset = fw_parse_data(tas_fmw, &(calibration->dev_data), fmw,
1895 			offset);
1896 		if (offset < 0)
1897 			goto out;
1898 	}
1899 
1900 out:
1901 	return offset;
1902 }
1903 
tas2781_load_calibration(void * context,char * file_name,unsigned short i)1904 int tas2781_load_calibration(void *context, char *file_name,
1905 	unsigned short i)
1906 {
1907 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
1908 	struct tasdevice *tasdev = &(tas_priv->tasdevice[i]);
1909 	const struct firmware *fw_entry = NULL;
1910 	struct tasdevice_fw *tas_fmw;
1911 	struct firmware fmw;
1912 	int offset = 0;
1913 	int ret;
1914 
1915 	ret = request_firmware(&fw_entry, file_name, tas_priv->dev);
1916 	if (ret) {
1917 		dev_err(tas_priv->dev, "%s: Request firmware %s failed\n",
1918 			__func__, file_name);
1919 		goto out;
1920 	}
1921 
1922 	if (!fw_entry->size) {
1923 		dev_err(tas_priv->dev, "%s: file read error: size = %lu\n",
1924 			__func__, (unsigned long)fw_entry->size);
1925 		ret = -EINVAL;
1926 		goto out;
1927 	}
1928 	fmw.size = fw_entry->size;
1929 	fmw.data = fw_entry->data;
1930 
1931 	tas_fmw = tasdev->cali_data_fmw = kzalloc(sizeof(struct tasdevice_fw),
1932 		GFP_KERNEL);
1933 	if (!tasdev->cali_data_fmw) {
1934 		ret = -ENOMEM;
1935 		goto out;
1936 	}
1937 	tas_fmw->dev = tas_priv->dev;
1938 	offset = fw_parse_header(tas_priv, tas_fmw, &fmw, offset);
1939 	if (offset == -EINVAL) {
1940 		dev_err(tas_priv->dev, "fw_parse_header EXIT!\n");
1941 		ret = offset;
1942 		goto out;
1943 	}
1944 	offset = fw_parse_variable_hdr_cal(tas_priv, tas_fmw, &fmw, offset);
1945 	if (offset == -EINVAL) {
1946 		dev_err(tas_priv->dev,
1947 			"%s: fw_parse_variable_header_cal EXIT!\n", __func__);
1948 		ret = offset;
1949 		goto out;
1950 	}
1951 	offset = fw_parse_program_data(tas_priv, tas_fmw, &fmw, offset);
1952 	if (offset < 0) {
1953 		dev_err(tas_priv->dev, "fw_parse_program_data EXIT!\n");
1954 		ret = offset;
1955 		goto out;
1956 	}
1957 	offset = fw_parse_configuration_data(tas_priv, tas_fmw, &fmw, offset);
1958 	if (offset < 0) {
1959 		dev_err(tas_priv->dev, "fw_parse_configuration_data EXIT!\n");
1960 		ret = offset;
1961 		goto out;
1962 	}
1963 	offset = fw_parse_calibration_data(tas_priv, tas_fmw, &fmw, offset);
1964 	if (offset < 0) {
1965 		dev_err(tas_priv->dev, "fw_parse_calibration_data EXIT!\n");
1966 		ret = offset;
1967 		goto out;
1968 	}
1969 
1970 out:
1971 	if (fw_entry)
1972 		release_firmware(fw_entry);
1973 
1974 	return ret;
1975 }
1976 EXPORT_SYMBOL_NS_GPL(tas2781_load_calibration, SND_SOC_TAS2781_FMWLIB);
1977 
tasdevice_dspfw_ready(const struct firmware * fmw,void * context)1978 static int tasdevice_dspfw_ready(const struct firmware *fmw,
1979 	void *context)
1980 {
1981 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
1982 	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr;
1983 	struct tasdevice_fw *tas_fmw;
1984 	int offset = 0;
1985 	int ret = 0;
1986 
1987 	if (!fmw || !fmw->data) {
1988 		dev_err(tas_priv->dev, "%s: Failed to read firmware %s\n",
1989 			__func__, tas_priv->coef_binaryname);
1990 		ret = -EINVAL;
1991 		goto out;
1992 	}
1993 
1994 	tas_priv->fmw = kzalloc(sizeof(struct tasdevice_fw), GFP_KERNEL);
1995 	if (!tas_priv->fmw) {
1996 		ret = -ENOMEM;
1997 		goto out;
1998 	}
1999 	tas_fmw = tas_priv->fmw;
2000 	tas_fmw->dev = tas_priv->dev;
2001 	offset = fw_parse_header(tas_priv, tas_fmw, fmw, offset);
2002 
2003 	if (offset == -EINVAL) {
2004 		ret = -EINVAL;
2005 		goto out;
2006 	}
2007 	fw_fixed_hdr = &(tas_fmw->fw_hdr.fixed_hdr);
2008 	/* Support different versions of firmware */
2009 	switch (fw_fixed_hdr->drv_ver) {
2010 	case 0x301:
2011 	case 0x302:
2012 	case 0x502:
2013 	case 0x503:
2014 		tas_priv->fw_parse_variable_header =
2015 			fw_parse_variable_header_kernel;
2016 		tas_priv->fw_parse_program_data =
2017 			fw_parse_program_data_kernel;
2018 		tas_priv->fw_parse_configuration_data =
2019 			fw_parse_configuration_data_kernel;
2020 		tas_priv->tasdevice_load_block =
2021 			tasdevice_load_block_kernel;
2022 		break;
2023 	case 0x202:
2024 	case 0x400:
2025 		tas_priv->fw_parse_variable_header =
2026 			fw_parse_variable_header_git;
2027 		tas_priv->fw_parse_program_data =
2028 			fw_parse_program_data;
2029 		tas_priv->fw_parse_configuration_data =
2030 			fw_parse_configuration_data;
2031 		tas_priv->tasdevice_load_block =
2032 			tasdevice_load_block;
2033 		break;
2034 	default:
2035 		ret = dspfw_default_callback(tas_priv,
2036 			fw_fixed_hdr->drv_ver, fw_fixed_hdr->ppcver);
2037 		if (ret)
2038 			goto out;
2039 		break;
2040 	}
2041 
2042 	offset = tas_priv->fw_parse_variable_header(tas_priv, fmw, offset);
2043 	if (offset < 0) {
2044 		ret = offset;
2045 		goto out;
2046 	}
2047 	offset = tas_priv->fw_parse_program_data(tas_priv, tas_fmw, fmw,
2048 		offset);
2049 	if (offset < 0) {
2050 		ret = offset;
2051 		goto out;
2052 	}
2053 	offset = tas_priv->fw_parse_configuration_data(tas_priv,
2054 		tas_fmw, fmw, offset);
2055 	if (offset < 0)
2056 		ret = offset;
2057 
2058 out:
2059 	return ret;
2060 }
2061 
tasdevice_dsp_parser(void * context)2062 int tasdevice_dsp_parser(void *context)
2063 {
2064 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
2065 	const struct firmware *fw_entry;
2066 	int ret;
2067 
2068 	ret = request_firmware(&fw_entry, tas_priv->coef_binaryname,
2069 		tas_priv->dev);
2070 	if (ret) {
2071 		dev_err(tas_priv->dev, "%s: load %s error\n", __func__,
2072 			tas_priv->coef_binaryname);
2073 		goto out;
2074 	}
2075 
2076 	ret = tasdevice_dspfw_ready(fw_entry, tas_priv);
2077 	release_firmware(fw_entry);
2078 	fw_entry = NULL;
2079 
2080 out:
2081 	return ret;
2082 }
2083 EXPORT_SYMBOL_NS_GPL(tasdevice_dsp_parser, SND_SOC_TAS2781_FMWLIB);
2084 
tas2781_clear_calfirmware(struct tasdevice_fw * tas_fmw)2085 static void tas2781_clear_calfirmware(struct tasdevice_fw *tas_fmw)
2086 {
2087 	struct tasdevice_calibration *calibration;
2088 	struct tasdev_blk *block;
2089 	struct tasdevice_data *im;
2090 	unsigned int blks;
2091 	int i;
2092 
2093 	if (!tas_fmw->calibrations)
2094 		goto out;
2095 
2096 	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
2097 		calibration = &(tas_fmw->calibrations[i]);
2098 		if (!calibration)
2099 			continue;
2100 
2101 		im = &(calibration->dev_data);
2102 
2103 		if (!im->dev_blks)
2104 			continue;
2105 
2106 		for (blks = 0; blks < im->nr_blk; blks++) {
2107 			block = &(im->dev_blks[blks]);
2108 			if (!block)
2109 				continue;
2110 			kfree(block->data);
2111 		}
2112 		kfree(im->dev_blks);
2113 	}
2114 	kfree(tas_fmw->calibrations);
2115 out:
2116 	kfree(tas_fmw);
2117 }
2118 
tasdevice_calbin_remove(void * context)2119 void tasdevice_calbin_remove(void *context)
2120 {
2121 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
2122 	struct tasdevice *tasdev;
2123 	int i;
2124 
2125 	if (!tas_priv)
2126 		return;
2127 
2128 	for (i = 0; i < tas_priv->ndev; i++) {
2129 		tasdev = &(tas_priv->tasdevice[i]);
2130 		if (!tasdev->cali_data_fmw)
2131 			continue;
2132 		tas2781_clear_calfirmware(tasdev->cali_data_fmw);
2133 		tasdev->cali_data_fmw = NULL;
2134 	}
2135 }
2136 EXPORT_SYMBOL_NS_GPL(tasdevice_calbin_remove, SND_SOC_TAS2781_FMWLIB);
2137 
tasdevice_config_info_remove(void * context)2138 void tasdevice_config_info_remove(void *context)
2139 {
2140 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
2141 	struct tasdevice_rca *rca = &(tas_priv->rcabin);
2142 	struct tasdevice_config_info **ci = rca->cfg_info;
2143 	int i, j;
2144 
2145 	if (!ci)
2146 		return;
2147 	for (i = 0; i < rca->ncfgs; i++) {
2148 		if (!ci[i])
2149 			continue;
2150 		if (ci[i]->blk_data) {
2151 			for (j = 0; j < (int)ci[i]->real_nblocks; j++) {
2152 				if (!ci[i]->blk_data[j])
2153 					continue;
2154 				kfree(ci[i]->blk_data[j]->regdata);
2155 				kfree(ci[i]->blk_data[j]);
2156 			}
2157 			kfree(ci[i]->blk_data);
2158 		}
2159 		kfree(ci[i]);
2160 	}
2161 	kfree(ci);
2162 }
2163 EXPORT_SYMBOL_NS_GPL(tasdevice_config_info_remove, SND_SOC_TAS2781_FMWLIB);
2164 
tasdevice_load_data(struct tasdevice_priv * tas_priv,struct tasdevice_data * dev_data)2165 static int tasdevice_load_data(struct tasdevice_priv *tas_priv,
2166 	struct tasdevice_data *dev_data)
2167 {
2168 	struct tasdev_blk *block;
2169 	unsigned int i;
2170 	int ret = 0;
2171 
2172 	for (i = 0; i < dev_data->nr_blk; i++) {
2173 		block = &(dev_data->dev_blks[i]);
2174 		ret = tas_priv->tasdevice_load_block(tas_priv, block);
2175 		if (ret < 0)
2176 			break;
2177 	}
2178 
2179 	return ret;
2180 }
2181 
tasdev_load_calibrated_data(struct tasdevice_priv * priv,int i)2182 static void tasdev_load_calibrated_data(struct tasdevice_priv *priv, int i)
2183 {
2184 	struct tasdevice_calibration *cal;
2185 	struct tasdevice_fw *cal_fmw;
2186 
2187 	cal_fmw = priv->tasdevice[i].cali_data_fmw;
2188 
2189 	/* No calibrated data for current devices, playback will go ahead. */
2190 	if (!cal_fmw)
2191 		return;
2192 
2193 	cal = cal_fmw->calibrations;
2194 	if (!cal)
2195 		return;
2196 
2197 	load_calib_data(priv, &cal->dev_data);
2198 }
2199 
tasdevice_select_tuningprm_cfg(void * context,int prm_no,int cfg_no,int rca_conf_no)2200 int tasdevice_select_tuningprm_cfg(void *context, int prm_no,
2201 	int cfg_no, int rca_conf_no)
2202 {
2203 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
2204 	struct tasdevice_rca *rca = &(tas_priv->rcabin);
2205 	struct tasdevice_config_info **cfg_info = rca->cfg_info;
2206 	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
2207 	struct tasdevice_prog *program;
2208 	struct tasdevice_config *conf;
2209 	int prog_status = 0;
2210 	int status, i;
2211 
2212 	if (!tas_fmw) {
2213 		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
2214 		goto out;
2215 	}
2216 
2217 	if (cfg_no >= tas_fmw->nr_configurations) {
2218 		dev_err(tas_priv->dev,
2219 			"%s: cfg(%d) is not in range of conf %u\n",
2220 			__func__, cfg_no, tas_fmw->nr_configurations);
2221 		goto out;
2222 	}
2223 
2224 	if (prm_no >= tas_fmw->nr_programs) {
2225 		dev_err(tas_priv->dev,
2226 			"%s: prm(%d) is not in range of Programs %u\n",
2227 			__func__, prm_no, tas_fmw->nr_programs);
2228 		goto out;
2229 	}
2230 
2231 	if (rca_conf_no >= rca->ncfgs || rca_conf_no < 0 ||
2232 		!cfg_info) {
2233 		dev_err(tas_priv->dev,
2234 			"conf_no:%d should be in range from 0 to %u\n",
2235 			rca_conf_no, rca->ncfgs-1);
2236 		goto out;
2237 	}
2238 
2239 	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
2240 		if (cfg_info[rca_conf_no]->active_dev & (1 << i)) {
2241 			if (prm_no >= 0
2242 				&& (tas_priv->tasdevice[i].cur_prog != prm_no
2243 				|| tas_priv->force_fwload_status)) {
2244 				tas_priv->tasdevice[i].cur_conf = -1;
2245 				tas_priv->tasdevice[i].is_loading = true;
2246 				prog_status++;
2247 			}
2248 		} else
2249 			tas_priv->tasdevice[i].is_loading = false;
2250 		tas_priv->tasdevice[i].is_loaderr = false;
2251 	}
2252 
2253 	if (prog_status) {
2254 		program = &(tas_fmw->programs[prm_no]);
2255 		tasdevice_load_data(tas_priv, &(program->dev_data));
2256 		for (i = 0; i < tas_priv->ndev; i++) {
2257 			if (tas_priv->tasdevice[i].is_loaderr == true)
2258 				continue;
2259 			if (tas_priv->tasdevice[i].is_loaderr == false &&
2260 				tas_priv->tasdevice[i].is_loading == true)
2261 				tas_priv->tasdevice[i].cur_prog = prm_no;
2262 		}
2263 	}
2264 
2265 	for (i = 0, status = 0; i < tas_priv->ndev; i++) {
2266 		if (cfg_no >= 0
2267 			&& tas_priv->tasdevice[i].cur_conf != cfg_no
2268 			&& (cfg_info[rca_conf_no]->active_dev & (1 << i))
2269 			&& (tas_priv->tasdevice[i].is_loaderr == false)) {
2270 			status++;
2271 			tas_priv->tasdevice[i].is_loading = true;
2272 		} else
2273 			tas_priv->tasdevice[i].is_loading = false;
2274 	}
2275 
2276 	if (status) {
2277 		conf = &(tas_fmw->configs[cfg_no]);
2278 		status = 0;
2279 		tasdevice_load_data(tas_priv, &(conf->dev_data));
2280 		for (i = 0; i < tas_priv->ndev; i++) {
2281 			if (tas_priv->tasdevice[i].is_loaderr == true) {
2282 				status |= BIT(i + 4);
2283 				continue;
2284 			}
2285 
2286 			if (tas_priv->tasdevice[i].is_loaderr == false &&
2287 				tas_priv->tasdevice[i].is_loading == true) {
2288 				tasdev_load_calibrated_data(tas_priv, i);
2289 				tas_priv->tasdevice[i].cur_conf = cfg_no;
2290 			}
2291 		}
2292 	} else
2293 		dev_dbg(tas_priv->dev, "%s: Unneeded loading dsp conf %d\n",
2294 			__func__, cfg_no);
2295 
2296 	status |= cfg_info[rca_conf_no]->active_dev;
2297 
2298 out:
2299 	return prog_status;
2300 }
2301 EXPORT_SYMBOL_NS_GPL(tasdevice_select_tuningprm_cfg,
2302 	SND_SOC_TAS2781_FMWLIB);
2303 
tasdevice_prmg_load(void * context,int prm_no)2304 int tasdevice_prmg_load(void *context, int prm_no)
2305 {
2306 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
2307 	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
2308 	struct tasdevice_prog *program;
2309 	int prog_status = 0;
2310 	int i;
2311 
2312 	if (!tas_fmw) {
2313 		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
2314 		goto out;
2315 	}
2316 
2317 	if (prm_no >= tas_fmw->nr_programs) {
2318 		dev_err(tas_priv->dev,
2319 			"%s: prm(%d) is not in range of Programs %u\n",
2320 			__func__, prm_no, tas_fmw->nr_programs);
2321 		goto out;
2322 	}
2323 
2324 	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
2325 		if (prm_no >= 0 && tas_priv->tasdevice[i].cur_prog != prm_no) {
2326 			tas_priv->tasdevice[i].cur_conf = -1;
2327 			tas_priv->tasdevice[i].is_loading = true;
2328 			prog_status++;
2329 		}
2330 	}
2331 
2332 	if (prog_status) {
2333 		program = &(tas_fmw->programs[prm_no]);
2334 		tasdevice_load_data(tas_priv, &(program->dev_data));
2335 		for (i = 0; i < tas_priv->ndev; i++) {
2336 			if (tas_priv->tasdevice[i].is_loaderr == true)
2337 				continue;
2338 			else if (tas_priv->tasdevice[i].is_loaderr == false
2339 				&& tas_priv->tasdevice[i].is_loading == true)
2340 				tas_priv->tasdevice[i].cur_prog = prm_no;
2341 		}
2342 	}
2343 
2344 out:
2345 	return prog_status;
2346 }
2347 EXPORT_SYMBOL_NS_GPL(tasdevice_prmg_load, SND_SOC_TAS2781_FMWLIB);
2348 
tasdevice_tuning_switch(void * context,int state)2349 void tasdevice_tuning_switch(void *context, int state)
2350 {
2351 	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
2352 	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
2353 	int profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
2354 
2355 	/*
2356 	 * Only RCA-based Playback can still work with no dsp program running
2357 	 * inside the chip.
2358 	 */
2359 	switch (tas_priv->fw_state) {
2360 	case TASDEVICE_RCA_FW_OK:
2361 	case TASDEVICE_DSP_FW_ALL_OK:
2362 		break;
2363 	default:
2364 		return;
2365 	}
2366 
2367 	if (state == 0) {
2368 		if (tas_fmw && tas_priv->cur_prog < tas_fmw->nr_programs) {
2369 			/* dsp mode or tuning mode */
2370 			profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
2371 			tasdevice_select_tuningprm_cfg(tas_priv,
2372 				tas_priv->cur_prog, tas_priv->cur_conf,
2373 				profile_cfg_id);
2374 		}
2375 
2376 		tasdevice_select_cfg_blk(tas_priv, profile_cfg_id,
2377 			TASDEVICE_BIN_BLK_PRE_POWER_UP);
2378 	} else {
2379 		tasdevice_select_cfg_blk(tas_priv, profile_cfg_id,
2380 			TASDEVICE_BIN_BLK_PRE_SHUTDOWN);
2381 	}
2382 }
2383 EXPORT_SYMBOL_NS_GPL(tasdevice_tuning_switch,
2384 	SND_SOC_TAS2781_FMWLIB);
2385 
2386 MODULE_DESCRIPTION("Texas Firmware Support");
2387 MODULE_AUTHOR("Shenghao Ding, TI, <shenghao-ding@ti.com>");
2388 MODULE_LICENSE("GPL");
2389