xref: /linux/sound/soc/codecs/tas2781-fmwlib.c (revision d249037ac4701c32d99bc062834d592a57cfed00)

// SPDX-License-Identifier: GPL-2.0
//
// tas2781-fmwlib.c -- TASDEVICE firmware support
//
// Copyright 2023 - 2026 Texas Instruments, Inc.
//
// Author: Shenghao Ding <shenghao-ding@ti.com>
// Author: Baojun Xu <baojun.xu@ti.com>

#include <linux/crc8.h>
#include <linux/firmware.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/tas2781.h>
#include <linux/unaligned.h>

#define ERROR_PRAM_CRCCHK			0x0000000
#define ERROR_YRAM_CRCCHK			0x0000001
#define	PPC_DRIVER_CRCCHK			0x00000200

#define TAS2781_SA_COEFF_SWAP_REG		TASDEVICE_REG(0, 0x35, 0x2c)
#define TAS2781_YRAM_BOOK1			140
#define TAS2781_YRAM1_PAGE			42
#define TAS2781_YRAM1_START_REG			88

#define TAS2781_PG_REG		TASDEVICE_REG(0x00, 0x00, 0x7c)
#define TAS2781_PG_1_0		0xA0
#define TAS2781_PG_2_0		0xA8

#define TAS2781_YRAM2_START_PAGE		43
#define TAS2781_YRAM2_END_PAGE			49
#define TAS2781_YRAM2_START_REG			8
#define TAS2781_YRAM2_END_REG			127

#define TAS2781_YRAM3_PAGE			50
#define TAS2781_YRAM3_START_REG			8
#define TAS2781_YRAM3_END_REG			27

/*should not include B0_P53_R44-R47 */
#define TAS2781_YRAM_BOOK2			0
#define TAS2781_YRAM4_START_PAGE		50
#define TAS2781_YRAM4_END_PAGE			60

#define TAS2781_YRAM5_PAGE			61
#define TAS2781_YRAM5_START_REG			TAS2781_YRAM3_START_REG
#define TAS2781_YRAM5_END_REG			TAS2781_YRAM3_END_REG

#define TASDEVICE_CMD_SING_W		0x1
#define TASDEVICE_CMD_BURST		0x2
#define TASDEVICE_CMD_DELAY		0x3
#define TASDEVICE_CMD_FIELD_W		0x4

#define TASDEVICE_MAXPROGRAM_NUM_KERNEL			5
#define TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS	64
#define TASDEVICE_MAXCONFIG_NUM_KERNEL			10
#define MAIN_ALL_DEVICES_1X				0x01
#define MAIN_DEVICE_A_1X				0x02
#define MAIN_DEVICE_B_1X				0x03
#define MAIN_DEVICE_C_1X				0x04
#define MAIN_DEVICE_D_1X				0x05
#define COEFF_DEVICE_A_1X				0x12
#define COEFF_DEVICE_B_1X				0x13
#define COEFF_DEVICE_C_1X				0x14
#define COEFF_DEVICE_D_1X				0x15
#define PRE_DEVICE_A_1X					0x22
#define PRE_DEVICE_B_1X					0x23
#define PRE_DEVICE_C_1X					0x24
#define PRE_DEVICE_D_1X					0x25
#define PRE_SOFTWARE_RESET_DEVICE_A			0x41
#define PRE_SOFTWARE_RESET_DEVICE_B			0x42
#define PRE_SOFTWARE_RESET_DEVICE_C			0x43
#define PRE_SOFTWARE_RESET_DEVICE_D			0x44
#define POST_SOFTWARE_RESET_DEVICE_A			0x45
#define POST_SOFTWARE_RESET_DEVICE_B			0x46
#define POST_SOFTWARE_RESET_DEVICE_C			0x47
#define POST_SOFTWARE_RESET_DEVICE_D			0x48

#define COPY_CAL_DATA(i) \
	do { \
		calbin_data[i + 1] = data[7]; \
		calbin_data[i + 2] = data[8]; \
		calbin_data[i + 3] = data[9]; \
		calbin_data[i + 4] = data[10]; \
	} while (0)

struct tas_crc {
	unsigned char offset;
	unsigned char len;
};

struct blktyp_devidx_map {
	unsigned char blktyp;
	unsigned char dev_idx;
};

struct tas2781_cali_specific {
	unsigned char sin_gni[4];
	int sin_gni_reg;
	bool is_sin_gn_flush;
};

static const char deviceNumber[TASDEVICE_DSP_TAS_MAX_DEVICE] = {
	1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4, 1, 2
};

/* fixed m68k compiling issue: mapping table can save code field */
static const struct blktyp_devidx_map ppc3_tas2781_mapping_table[] = {
	{ MAIN_ALL_DEVICES_1X, 0x80 },
	{ MAIN_DEVICE_A_1X, 0x81 },
	{ COEFF_DEVICE_A_1X, 0xC1 },
	{ PRE_DEVICE_A_1X, 0xC1 },
	{ PRE_SOFTWARE_RESET_DEVICE_A, 0xC1 },
	{ POST_SOFTWARE_RESET_DEVICE_A, 0xC1 },
	{ MAIN_DEVICE_B_1X, 0x82 },
	{ COEFF_DEVICE_B_1X, 0xC2 },
	{ PRE_DEVICE_B_1X, 0xC2 },
	{ PRE_SOFTWARE_RESET_DEVICE_B, 0xC2 },
	{ POST_SOFTWARE_RESET_DEVICE_B, 0xC2 },
	{ MAIN_DEVICE_C_1X, 0x83 },
	{ COEFF_DEVICE_C_1X, 0xC3 },
	{ PRE_DEVICE_C_1X, 0xC3 },
	{ PRE_SOFTWARE_RESET_DEVICE_C, 0xC3 },
	{ POST_SOFTWARE_RESET_DEVICE_C, 0xC3 },
	{ MAIN_DEVICE_D_1X, 0x84 },
	{ COEFF_DEVICE_D_1X, 0xC4 },
	{ PRE_DEVICE_D_1X, 0xC4 },
	{ PRE_SOFTWARE_RESET_DEVICE_D, 0xC4 },
	{ POST_SOFTWARE_RESET_DEVICE_D, 0xC4 },
};

static const struct blktyp_devidx_map ppc3_mapping_table[] = {
	{ MAIN_ALL_DEVICES_1X, 0x80 },
	{ MAIN_DEVICE_A_1X, 0x81 },
	{ COEFF_DEVICE_A_1X, 0xC1 },
	{ PRE_DEVICE_A_1X, 0xC1 },
	{ MAIN_DEVICE_B_1X, 0x82 },
	{ COEFF_DEVICE_B_1X, 0xC2 },
	{ PRE_DEVICE_B_1X, 0xC2 },
	{ MAIN_DEVICE_C_1X, 0x83 },
	{ COEFF_DEVICE_C_1X, 0xC3 },
	{ PRE_DEVICE_C_1X, 0xC3 },
	{ MAIN_DEVICE_D_1X, 0x84 },
	{ COEFF_DEVICE_D_1X, 0xC4 },
	{ PRE_DEVICE_D_1X, 0xC4 },
};

static const struct blktyp_devidx_map non_ppc3_mapping_table[] = {
	{ MAIN_ALL_DEVICES, 0x80 },
	{ MAIN_DEVICE_A, 0x81 },
	{ COEFF_DEVICE_A, 0xC1 },
	{ PRE_DEVICE_A, 0xC1 },
	{ MAIN_DEVICE_B, 0x82 },
	{ COEFF_DEVICE_B, 0xC2 },
	{ PRE_DEVICE_B, 0xC2 },
	{ MAIN_DEVICE_C, 0x83 },
	{ COEFF_DEVICE_C, 0xC3 },
	{ PRE_DEVICE_C, 0xC3 },
	{ MAIN_DEVICE_D, 0x84 },
	{ COEFF_DEVICE_D, 0xC4 },
	{ PRE_DEVICE_D, 0xC4 },
};

static struct tasdevice_config_info *tasdevice_add_config(
	struct tasdevice_priv *tas_priv, unsigned char *config_data,
	unsigned int config_size, int *status)
{
	struct tasdevice_config_info *cfg_info;
	struct tasdev_blk_data **bk_da;
	unsigned int config_offset = 0;
	unsigned int i;

	/* In most projects are many audio cases, such as music, handfree,
	 * receiver, games, audio-to-haptics, PMIC record, bypass mode,
	 * portrait, landscape, etc. Even in multiple audios, one or
	 * two of the chips will work for the special case, such as
	 * ultrasonic application. In order to support these variable-numbers
	 * of audio cases, flexible configs have been introduced in the
	 * dsp firmware.
	 */
	cfg_info = kzalloc_obj(struct tasdevice_config_info);
	if (!cfg_info) {
		*status = -ENOMEM;
		goto out;
	}

	if (tas_priv->rcabin.fw_hdr.binary_version_num >= 0x105) {
		if (config_offset + 64 > (int)config_size) {
			*status = -EINVAL;
			dev_err(tas_priv->dev, "add conf: Out of boundary\n");
			goto out;
		}
		/* If in the RCA bin file are several profiles with the
		 * keyword "init", init_profile_id only store the last
		 * init profile id.
		 */
		if (strnstr(&config_data[config_offset], "init", 64)) {
			tas_priv->rcabin.init_profile_id =
				tas_priv->rcabin.ncfgs - 1;
			dev_dbg(tas_priv->dev, "%s: init profile id = %d\n",
				__func__, tas_priv->rcabin.init_profile_id);
		}
		config_offset += 64;
	}

	if (config_offset + 4 > (int)config_size) {
		*status = -EINVAL;
		dev_err(tas_priv->dev, "add config: Out of boundary\n");
		goto out;
	}

	/* convert data[offset], data[offset + 1], data[offset + 2] and
	 * data[offset + 3] into host
	 */
	cfg_info->nblocks = get_unaligned_be32(&config_data[config_offset]);
	config_offset += 4;

	/* Several kinds of dsp/algorithm firmwares can run on tas2781,
	 * the number and size of blk are not fixed and different among
	 * these firmwares.
	 */
	bk_da = cfg_info->blk_data = kzalloc_objs(struct tasdev_blk_data *,
						  cfg_info->nblocks);
	if (!bk_da) {
		*status = -ENOMEM;
		goto out;
	}
	cfg_info->real_nblocks = 0;
	for (i = 0; i < cfg_info->nblocks; i++) {
		if (config_offset + 12 > config_size) {
			*status = -EINVAL;
			dev_err(tas_priv->dev,
				"%s: Out of boundary: i = %d nblocks = %u!\n",
				__func__, i, cfg_info->nblocks);
			break;
		}
		bk_da[i] = kzalloc_obj(struct tasdev_blk_data);
		if (!bk_da[i]) {
			*status = -ENOMEM;
			break;
		}

		bk_da[i]->dev_idx = config_data[config_offset];
		config_offset++;

		bk_da[i]->block_type = config_data[config_offset];
		config_offset++;

		if (bk_da[i]->block_type == TASDEVICE_BIN_BLK_PRE_POWER_UP) {
			if (bk_da[i]->dev_idx == 0)
				cfg_info->active_dev =
					(1 << tas_priv->ndev) - 1;
			else
				cfg_info->active_dev |= 1 <<
					(bk_da[i]->dev_idx - 1);

		}
		bk_da[i]->yram_checksum =
			get_unaligned_be16(&config_data[config_offset]);
		config_offset += 2;
		bk_da[i]->block_size =
			get_unaligned_be32(&config_data[config_offset]);
		config_offset += 4;

		bk_da[i]->n_subblks =
			get_unaligned_be32(&config_data[config_offset]);

		config_offset += 4;

		if (config_offset + bk_da[i]->block_size > config_size) {
			*status = -EINVAL;
			dev_err(tas_priv->dev,
				"%s: Out of boundary: i = %d blks = %u!\n",
				__func__, i, cfg_info->nblocks);
			break;
		}
		/* instead of kzalloc+memcpy */
		bk_da[i]->regdata = kmemdup(&config_data[config_offset],
			bk_da[i]->block_size, GFP_KERNEL);
		if (!bk_da[i]->regdata) {
			*status = -ENOMEM;
			goto out;
		}

		config_offset += bk_da[i]->block_size;
		cfg_info->real_nblocks += 1;
	}

out:
	return cfg_info;
}

int tasdevice_rca_parser(void *context, const struct firmware *fmw)
{
	struct tasdevice_priv *tas_priv = context;
	struct tasdevice_config_info **cfg_info;
	struct tasdevice_rca_hdr *fw_hdr;
	struct tasdevice_rca *rca;
	unsigned int total_config_sz = 0;
	unsigned char *buf;
	int offset = 0;
	int ret = 0;
	int i;

	rca = &(tas_priv->rcabin);
	/* Initialize to none */
	rca->init_profile_id = -1;
	fw_hdr = &(rca->fw_hdr);
	if (!fmw || !fmw->data) {
		dev_err(tas_priv->dev, "Failed to read %s\n",
			tas_priv->rca_binaryname);
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		ret = -EINVAL;
		goto out;
	}
	buf = (unsigned char *)fmw->data;

	fw_hdr->img_sz = get_unaligned_be32(&buf[offset]);
	offset += 4;
	if (fw_hdr->img_sz != fmw->size) {
		dev_err(tas_priv->dev,
			"File size not match, %d %u", (int)fmw->size,
			fw_hdr->img_sz);
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		ret = -EINVAL;
		goto out;
	}

	fw_hdr->checksum = get_unaligned_be32(&buf[offset]);
	offset += 4;
	fw_hdr->binary_version_num = get_unaligned_be32(&buf[offset]);
	if (fw_hdr->binary_version_num < 0x103) {
		dev_err(tas_priv->dev, "File version 0x%04x is too low",
			fw_hdr->binary_version_num);
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		ret = -EINVAL;
		goto out;
	}
	offset += 4;
	fw_hdr->drv_fw_version = get_unaligned_be32(&buf[offset]);
	offset += 8;
	fw_hdr->plat_type = buf[offset];
	offset += 1;
	fw_hdr->dev_family = buf[offset];
	offset += 1;
	fw_hdr->reserve = buf[offset];
	offset += 1;
	fw_hdr->ndev = buf[offset];
	offset += 1;
	if (fw_hdr->ndev != tas_priv->ndev) {
		dev_err(tas_priv->dev,
			"ndev(%u) in rcabin mismatch ndev(%u) in DTS\n",
			fw_hdr->ndev, tas_priv->ndev);
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		ret = -EINVAL;
		goto out;
	}
	if (offset + TASDEVICE_DEVICE_SUM > fw_hdr->img_sz) {
		dev_err(tas_priv->dev, "rca_ready: Out of boundary!\n");
		ret = -EINVAL;
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		goto out;
	}

	for (i = 0; i < TASDEVICE_DEVICE_SUM; i++, offset++)
		fw_hdr->devs[i] = buf[offset];

	fw_hdr->nconfig = get_unaligned_be32(&buf[offset]);
	offset += 4;

	for (i = 0; i < TASDEVICE_CONFIG_SUM; i++) {
		fw_hdr->config_size[i] = get_unaligned_be32(&buf[offset]);
		offset += 4;
		total_config_sz += fw_hdr->config_size[i];
	}

	if (fw_hdr->img_sz - total_config_sz != (unsigned int)offset) {
		dev_err(tas_priv->dev, "Bin file error!\n");
		ret = -EINVAL;
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		goto out;
	}

	cfg_info = kzalloc_objs(*cfg_info, fw_hdr->nconfig);
	if (!cfg_info) {
		ret = -ENOMEM;
		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
		goto out;
	}
	rca->cfg_info = cfg_info;
	rca->ncfgs = 0;
	for (i = 0; i < (int)fw_hdr->nconfig; i++) {
		rca->ncfgs += 1;
		cfg_info[i] = tasdevice_add_config(tas_priv, &buf[offset],
			fw_hdr->config_size[i], &ret);
		if (ret) {
			tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
			goto out;
		}
		offset += (int)fw_hdr->config_size[i];
	}
out:
	return ret;
}
EXPORT_SYMBOL_NS_GPL(tasdevice_rca_parser, "SND_SOC_TAS2781_FMWLIB");

/* fixed m68k compiling issue: mapping table can save code field */
static unsigned char map_dev_idx(struct tasdevice_fw *tas_fmw,
	struct tasdev_blk *block)
{

	struct blktyp_devidx_map *p =
		(struct blktyp_devidx_map *)non_ppc3_mapping_table;
	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);

	int i, n = ARRAY_SIZE(non_ppc3_mapping_table);
	unsigned char dev_idx = 0;

	if (fw_fixed_hdr->ppcver >= PPC3_VERSION_TAS2781_BASIC_MIN) {
		p = (struct blktyp_devidx_map *)ppc3_tas2781_mapping_table;
		n = ARRAY_SIZE(ppc3_tas2781_mapping_table);
	} else if (fw_fixed_hdr->ppcver >= PPC3_VERSION_BASE) {
		p = (struct blktyp_devidx_map *)ppc3_mapping_table;
		n = ARRAY_SIZE(ppc3_mapping_table);
	}

	for (i = 0; i < n; i++) {
		if (block->type == p[i].blktyp) {
			dev_idx = p[i].dev_idx;
			break;
		}
	}

	return dev_idx;
}

static int fw_parse_block_data_kernel(struct tasdevice_fw *tas_fmw,
	struct tasdev_blk *block, const struct firmware *fmw, int offset)
{
	const unsigned char *data = fmw->data;

	if (offset + 16 > fmw->size) {
		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}

	/* convert data[offset], data[offset + 1], data[offset + 2] and
	 * data[offset + 3] into host
	 */
	block->type = get_unaligned_be32(&data[offset]);
	offset += 4;

	block->is_pchksum_present = data[offset];
	offset++;

	block->pchksum = data[offset];
	offset++;

	block->is_ychksum_present = data[offset];
	offset++;

	block->ychksum = data[offset];
	offset++;

	block->blk_size = get_unaligned_be32(&data[offset]);
	offset += 4;

	block->nr_subblocks = get_unaligned_be32(&data[offset]);
	offset += 4;

	/* fixed m68k compiling issue:
	 * 1. mapping table can save code field.
	 * 2. storing the dev_idx as a member of block can reduce unnecessary
	 *    time and system resource comsumption of dev_idx mapping every
	 *    time the block data writing to the dsp.
	 */
	block->dev_idx = map_dev_idx(tas_fmw, block);

	if (offset + block->blk_size > fmw->size) {
		dev_err(tas_fmw->dev, "%s: nSublocks error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	/* instead of kzalloc+memcpy */
	block->data = kmemdup(&data[offset], block->blk_size, GFP_KERNEL);
	if (!block->data) {
		offset = -ENOMEM;
		goto out;
	}
	offset += block->blk_size;

out:
	return offset;
}

static int fw_parse_data_kernel(struct tasdevice_fw *tas_fmw,
	struct tasdevice_data *img_data, const struct firmware *fmw,
	int offset)
{
	const unsigned char *data = fmw->data;
	struct tasdev_blk *blk;
	unsigned int i;

	if (offset + 4 > fmw->size) {
		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	img_data->nr_blk = get_unaligned_be32(&data[offset]);
	offset += 4;

	img_data->dev_blks = kzalloc_objs(struct tasdev_blk, img_data->nr_blk);
	if (!img_data->dev_blks) {
		offset = -ENOMEM;
		goto out;
	}

	for (i = 0; i < img_data->nr_blk; i++) {
		blk = &(img_data->dev_blks[i]);
		offset = fw_parse_block_data_kernel(tas_fmw, blk, fmw, offset);
		if (offset < 0) {
			offset = -EINVAL;
			break;
		}
	}

out:
	return offset;
}

static int fw_parse_tas5825_program_data_kernel(
	struct tasdevice_priv *tas_priv, struct tasdevice_fw *tas_fmw,
	const struct firmware *fmw, int offset)
{
	struct tasdevice_prog *program;
	unsigned int i;

	for (i = 0; i < tas_fmw->nr_programs; i++) {
		program = &(tas_fmw->programs[i]);
		if (offset + 72 > fmw->size) {
			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
			return -EINVAL;
		}
		/* Skip 65 unused byts*/
		offset += 65;
		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
			fmw, offset);
		if (offset < 0)
			return offset;
	}

	return offset;
}

static int fw_parse_tas5825_configuration_data_kernel(
	struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	const unsigned char *data = fmw->data;
	struct tasdevice_config *config;
	unsigned int i;

	for (i = 0; i < tas_fmw->nr_configurations; i++) {
		config = &(tas_fmw->configs[i]);
		if (offset + 80 > fmw->size) {
			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
			return -EINVAL;
		}
		memcpy(config->name, &data[offset], 64);
		/* Skip extra 8 bytes*/
		offset += 72;
		offset = fw_parse_data_kernel(tas_fmw, &(config->dev_data),
			fmw, offset);
		if (offset < 0)
			return offset;
	}

	return offset;
}

static int fw_parse_program_data_kernel(
	struct tasdevice_priv *tas_priv, struct tasdevice_fw *tas_fmw,
	const struct firmware *fmw, int offset)
{
	struct tasdevice_prog *program;
	unsigned int i;

	for (i = 0; i < tas_fmw->nr_programs; i++) {
		program = &(tas_fmw->programs[i]);
		if (offset + 72 > fmw->size) {
			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
			offset = -EINVAL;
			goto out;
		}
		/*skip 72 unused byts*/
		offset += 72;

		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
			fmw, offset);
		if (offset < 0)
			goto out;
	}

out:
	return offset;
}

static int fw_parse_configuration_data_kernel(
	struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	const unsigned char *data = fmw->data;
	struct tasdevice_config *config;
	unsigned int i;

	for (i = 0; i < tas_fmw->nr_configurations; i++) {
		config = &(tas_fmw->configs[i]);
		if (offset + 80 > fmw->size) {
			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
			offset = -EINVAL;
			goto out;
		}
		memcpy(config->name, &data[offset], 64);
		/*skip extra 16 bytes*/
		offset += 80;

		offset = fw_parse_data_kernel(tas_fmw, &(config->dev_data),
			fmw, offset);
		if (offset < 0)
			goto out;
	}

out:
	return offset;
}

static void fct_param_address_parser(struct cali_reg *r,
	struct tasdevice_fw *tas_fmw, const unsigned char *data)
{
	struct fct_param_address *p = &tas_fmw->fct_par_addr;
	unsigned int i;

	/*
	 * Calibration parameters locations and data schema in dsp firmware.
	 * The number of items are flexible, but not more than 20. The dsp tool
	 * will reseve 20*24-byte space for fct params. In some cases, the
	 * number of fct param is less than 20, the data will be saved from the
	 * beginning, the rest part will be stuffed with zero.
	 *
	 *	fct_param_num (not more than 20)
	 *	for (i = 0; i < fct_param_num; i++) {
	 *		Alias of fct param (20 bytes)
	 *		Book (1 byte)
	 *		Page (1 byte)
	 *		Offset (1 byte)
	 *		CoeffLength (1 byte) = 0x1
	 *	}
	 *	if (20 - fct_param_num)
	 *		24*(20 - fct_param_num) pieces of '0' as stuffing
	 *
	 * As follow:
	 * umg_SsmKEGCye	 = Book, Page, Offset, CoeffLength
	 * iks_E0 		 = Book, Page, Offset, CoeffLength
	 * yep_LsqM0		 = Book, Page, Offset, CoeffLength
	 * oyz_U0_ujx		 = Book, Page, Offset, CoeffLength
	 * iks_GC_GMgq		 = Book, Page, Offset, CoeffLength
	 * gou_Yao		 = Book, Page, Offset, CoeffLength
	 * kgd_Wsc_Qsbp		 = Book, Page, Offset, CoeffLength
	 * yec_CqseSsqs		 = Book, Page, Offset, CoeffLength
	 * iks_SogkGgog2	 = Book, Page, Offset, CoeffLength
	 * yec_Sae_Y		 = Book, Page, Offset, CoeffLength
	 * Re_Int		 = Book, Page, Offset, CoeffLength
	 * SigFlag		 = Book, Page, Offset, CoeffLength
	 * a1_Int		 = Book, Page, Offset, CoeffLength
	 * a2_Int		 = Book, Page, Offset, CoeffLength
	 */
	for (i = 0; i < 20; i++) {
		const unsigned char *dat = &data[24 * i];

		/*
		 * check whether current fct param is empty.
		 */
		if (dat[23] != 1)
			break;

		if (!strncmp(dat, "umg_SsmKEGCye", 20))
			r->pow_reg = TASDEVICE_REG(dat[20], dat[21], dat[22]);
		/* high 32-bit of real-time spk impedance */
		else if (!strncmp(dat, "iks_E0", 20))
			r->r0_reg = TASDEVICE_REG(dat[20], dat[21], dat[22]);
		/* inverse of real-time spk impedance */
		else if (!strncmp(dat, "yep_LsqM0", 20))
			r->invr0_reg =
				TASDEVICE_REG(dat[20], dat[21], dat[22]);
		/* low 32-bit of real-time spk impedance */
		else if (!strncmp(dat, "oyz_U0_ujx", 20))
			r->r0_low_reg =
				TASDEVICE_REG(dat[20], dat[21], dat[22]);
		/* Delta Thermal Limit */
		else if (!strncmp(dat, "iks_GC_GMgq", 20))
			r->tlimit_reg =
				TASDEVICE_REG(dat[20], dat[21], dat[22]);
		/* Thermal data for PG 1.0 device */
		else if (!strncmp(dat, "gou_Yao", 20))
			memcpy(p->thr, &dat[20], 3);
		/* Pilot tone enable flag, usually the sine wave */
		else if (!strncmp(dat, "kgd_Wsc_Qsbp", 20))
			memcpy(p->plt_flg, &dat[20], 3);
		/* Pilot tone gain for calibration */
		else if (!strncmp(dat, "yec_CqseSsqs", 20))
			memcpy(p->sin_gn, &dat[20], 3);
		/* Pilot tone gain for calibration, useless in PG 2.0 */
		else if (!strncmp(dat, "iks_SogkGgog2", 20))
			memcpy(p->sin_gn2, &dat[20], 3);
		/* Thermal data for PG 2.0 device */
		else if (!strncmp(dat, "yec_Sae_Y", 20))
			memcpy(p->thr2, &dat[20], 3);
		/* Spk Equivalent Resistance in fixed-point format */
		else if (!strncmp(dat, "Re_Int", 20))
			memcpy(p->r0_reg, &dat[20], 3);
		/* Check whether the spk connection is open */
		else if (!strncmp(dat, "SigFlag", 20))
			memcpy(p->tf_reg, &dat[20], 3);
		/* check spk resonant frequency */
		else if (!strncmp(dat, "a1_Int", 20))
			memcpy(p->a1_reg, &dat[20], 3);
		/* check spk resonant frequency */
		else if (!strncmp(dat, "a2_Int", 20))
			memcpy(p->a2_reg, &dat[20], 3);
	}
}

static int fw_parse_fct_param_address(struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	struct calidata *cali_data = &tas_priv->cali_data;
	struct cali_reg *r = &cali_data->cali_reg_array;
	const unsigned char *data = fmw->data;

	if (offset + 520 > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		return -EINVAL;
	}

	/* skip reserved part */
	offset += 40;

	fct_param_address_parser(r, tas_fmw, &data[offset]);

	offset += 480;

	return offset;
}

static int fw_parse_variable_header_kernel(
	struct tasdevice_priv *tas_priv, const struct firmware *fmw,
	int offset)
{
	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
	struct tasdevice_prog *program;
	struct tasdevice_config *config;
	const unsigned char *buf = fmw->data;
	unsigned short max_confs;
	unsigned int i;

	if (offset + 12 + 4 * TASDEVICE_MAXPROGRAM_NUM_KERNEL > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	fw_hdr->device_family = get_unaligned_be16(&buf[offset]);
	if (fw_hdr->device_family != 0) {
		dev_err(tas_priv->dev, "%s:not TAS device\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	offset += 2;
	fw_hdr->device = get_unaligned_be16(&buf[offset]);
	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
		fw_hdr->device == 6) {
		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
		offset = -EINVAL;
		goto out;
	}
	offset += 2;
	fw_hdr->ndev = deviceNumber[fw_hdr->device];

	if (fw_hdr->ndev != tas_priv->ndev) {
		dev_err(tas_priv->dev,
			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
			__func__, fw_hdr->ndev, tas_priv->ndev);
		offset = -EINVAL;
		goto out;
	}

	tas_fmw->nr_programs = get_unaligned_be32(&buf[offset]);
	offset += 4;

	if (tas_fmw->nr_programs == 0 || tas_fmw->nr_programs >
		TASDEVICE_MAXPROGRAM_NUM_KERNEL) {
		dev_err(tas_priv->dev, "mnPrograms is invalid\n");
		offset = -EINVAL;
		goto out;
	}

	tas_fmw->programs = kzalloc_objs(struct tasdevice_prog,
					 tas_fmw->nr_programs);
	if (!tas_fmw->programs) {
		offset = -ENOMEM;
		goto out;
	}

	for (i = 0; i < tas_fmw->nr_programs; i++) {
		program = &(tas_fmw->programs[i]);
		program->prog_size = get_unaligned_be32(&buf[offset]);
		offset += 4;
	}

	/* Skip the unused prog_size */
	offset += 4 * (TASDEVICE_MAXPROGRAM_NUM_KERNEL - tas_fmw->nr_programs);

	tas_fmw->nr_configurations = get_unaligned_be32(&buf[offset]);
	offset += 4;

	/* The max number of config in firmware greater than 4 pieces of
	 * tas2781s is different from the one lower than 4 pieces of
	 * tas2781s.
	 */
	max_confs = (fw_hdr->ndev >= 4) ?
		TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS :
		TASDEVICE_MAXCONFIG_NUM_KERNEL;
	if (tas_fmw->nr_configurations == 0 ||
		tas_fmw->nr_configurations > max_confs) {
		dev_err(tas_priv->dev, "%s: Conf is invalid\n", __func__);
		offset = -EINVAL;
		goto out;
	}

	if (offset + 4 * max_confs > fmw->size) {
		dev_err(tas_priv->dev, "%s: mpConfigurations err\n", __func__);
		offset = -EINVAL;
		goto out;
	}

	tas_fmw->configs = kzalloc_objs(struct tasdevice_config,
					tas_fmw->nr_configurations);
	if (!tas_fmw->configs) {
		offset = -ENOMEM;
		goto out;
	}

	for (i = 0; i < tas_fmw->nr_programs; i++) {
		config = &(tas_fmw->configs[i]);
		config->cfg_size = get_unaligned_be32(&buf[offset]);
		offset += 4;
	}

	/* Skip the unused configs */
	offset += 4 * (max_confs - tas_fmw->nr_programs);

out:
	return offset;
}

static int tasdevice_process_block(void *context, unsigned char *data,
	unsigned char dev_idx, int sublocksize)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
	int subblk_offset, chn, chnend, rc;
	unsigned char subblk_typ = data[1];
	int blktyp = dev_idx & 0xC0;
	int idx = dev_idx & 0x3F;
	bool is_err = false;

	if (idx) {
		chn = idx - 1;
		chnend = idx;
	} else {
		if (tas_priv->isspi) {
			chn = tas_priv->index;
			chnend = chn + 1;
		} else {
			chn = 0;
			chnend = tas_priv->ndev;
		}
	}

	for (; chn < chnend; chn++) {
		if (tas_priv->tasdevice[chn].is_loading == false)
			continue;

		is_err = false;
		subblk_offset = 2;
		switch (subblk_typ) {
		case TASDEVICE_CMD_SING_W: {
			int i;
			unsigned short len = get_unaligned_be16(&data[2]);

			subblk_offset += 2;
			if (subblk_offset + 4 * len > sublocksize) {
				dev_err(tas_priv->dev,
					"process_block: Out of boundary\n");
				is_err = true;
				break;
			}

			for (i = 0; i < len; i++) {
				rc = tasdevice_dev_write(tas_priv, chn,
					TASDEVICE_REG(data[subblk_offset],
						data[subblk_offset + 1],
						data[subblk_offset + 2]),
					data[subblk_offset + 3]);
				if (rc < 0) {
					is_err = true;
					dev_err(tas_priv->dev,
					"process_block: single write error\n");
				}
				subblk_offset += 4;
			}
		}
			break;
		case TASDEVICE_CMD_BURST: {
			unsigned short len = get_unaligned_be16(&data[2]);

			subblk_offset += 2;
			if (subblk_offset + 4 + len > sublocksize) {
				dev_err(tas_priv->dev,
					"%s: BST Out of boundary\n",
					__func__);
				is_err = true;
				break;
			}
			if (len % 4) {
				dev_err(tas_priv->dev,
					"%s:Bst-len(%u)not div by 4\n",
					__func__, len);
				break;
			}

			rc = tasdevice_dev_bulk_write(tas_priv, chn,
				TASDEVICE_REG(data[subblk_offset],
				data[subblk_offset + 1],
				data[subblk_offset + 2]),
				&(data[subblk_offset + 4]), len);
			if (rc < 0) {
				is_err = true;
				dev_err(tas_priv->dev,
					"%s: bulk_write error = %d\n",
					__func__, rc);
			}
			subblk_offset += (len + 4);
		}
			break;
		case TASDEVICE_CMD_DELAY: {
			unsigned int sleep_time = 0;

			if (subblk_offset + 2 > sublocksize) {
				dev_err(tas_priv->dev,
					"%s: delay Out of boundary\n",
					__func__);
				is_err = true;
				break;
			}
			sleep_time = get_unaligned_be16(&data[2]) * 1000;
			usleep_range(sleep_time, sleep_time + 50);
			subblk_offset += 2;
		}
			break;
		case TASDEVICE_CMD_FIELD_W:
			if (subblk_offset + 6 > sublocksize) {
				dev_err(tas_priv->dev,
					"%s: bit write Out of boundary\n",
					__func__);
				is_err = true;
				break;
			}
			rc = tas_priv->update_bits(tas_priv, chn,
				TASDEVICE_REG(data[subblk_offset + 2],
				data[subblk_offset + 3],
				data[subblk_offset + 4]),
				data[subblk_offset + 1],
				data[subblk_offset + 5]);
			if (rc < 0) {
				is_err = true;
				dev_err(tas_priv->dev,
					"%s: update_bits error = %d\n",
					__func__, rc);
			}
			subblk_offset += 6;
			break;
		default:
			break;
		}
		if (is_err == true && blktyp != 0) {
			if (blktyp == 0x80) {
				tas_priv->tasdevice[chn].cur_prog = -1;
				tas_priv->tasdevice[chn].cur_conf = -1;
			} else
				tas_priv->tasdevice[chn].cur_conf = -1;
		}
	}

	return subblk_offset;
}

void tasdevice_select_cfg_blk(void *pContext, int conf_no,
	unsigned char block_type)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) pContext;
	struct tasdevice_rca *rca = &(tas_priv->rcabin);
	struct tasdevice_config_info **cfg_info = rca->cfg_info;
	struct tasdev_blk_data **blk_data;
	int j, k, chn, chnend;

	if (conf_no >= rca->ncfgs || conf_no < 0 || !cfg_info) {
		dev_err(tas_priv->dev, "conf_no should be not more than %u\n",
			rca->ncfgs);
		return;
	}
	blk_data = cfg_info[conf_no]->blk_data;

	for (j = 0; j < (int)cfg_info[conf_no]->real_nblocks; j++) {
		unsigned int length = 0, rc = 0;

		if (block_type > 5 || block_type < 2) {
			dev_err(tas_priv->dev,
				"block_type should be in range from 2 to 5\n");
			break;
		}
		if (block_type != blk_data[j]->block_type)
			continue;

		for (k = 0; k < (int)blk_data[j]->n_subblks; k++) {
			if (blk_data[j]->dev_idx) {
				chn = blk_data[j]->dev_idx - 1;
				chnend = blk_data[j]->dev_idx;
			} else {
				chn = 0;
				chnend = tas_priv->ndev;
			}
			for (; chn < chnend; chn++)
				tas_priv->tasdevice[chn].is_loading = true;

			rc = tasdevice_process_block(tas_priv,
				blk_data[j]->regdata + length,
				blk_data[j]->dev_idx,
				blk_data[j]->block_size - length);
			length += rc;
			if (blk_data[j]->block_size < length) {
				dev_err(tas_priv->dev,
					"%s: %u %u out of boundary\n",
					__func__, length,
					blk_data[j]->block_size);
				break;
			}
		}
		if (length != blk_data[j]->block_size)
			dev_err(tas_priv->dev, "%s: %u %u size is not same\n",
				__func__, length, blk_data[j]->block_size);
	}
}
EXPORT_SYMBOL_NS_GPL(tasdevice_select_cfg_blk, "SND_SOC_TAS2781_FMWLIB");

static int tasdevice_load_block_kernel(
	struct tasdevice_priv *tasdevice, struct tasdev_blk *block)
{
	const unsigned int blk_size = block->blk_size;
	unsigned int i, length;
	unsigned char *data = block->data;

	for (i = 0, length = 0; i < block->nr_subblocks; i++) {
		int rc = tasdevice_process_block(tasdevice, data + length,
			block->dev_idx, blk_size - length);
		if (rc < 0) {
			dev_err(tasdevice->dev,
				"%s: %u %u sublock write error\n",
				__func__, length, blk_size);
			break;
		}
		length += (unsigned int)rc;
		if (blk_size < length) {
			dev_err(tasdevice->dev, "%s: %u %u out of boundary\n",
				__func__, length, blk_size);
			break;
		}
	}

	return 0;
}

static int fw_parse_variable_hdr(struct tasdevice_priv
	*tas_priv, struct tasdevice_dspfw_hdr *fw_hdr,
	const struct firmware *fmw, int offset)
{
	const unsigned char *buf = fmw->data;
	int len = strlen((char *)&buf[offset]);

	len++;

	if (offset + len + 8 > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}

	offset += len;

	fw_hdr->device_family = get_unaligned_be32(&buf[offset]);
	if (fw_hdr->device_family != 0) {
		dev_err(tas_priv->dev, "%s: not TAS device\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	offset += 4;

	fw_hdr->device = get_unaligned_be32(&buf[offset]);
	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
		fw_hdr->device == 6) {
		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
		offset = -EINVAL;
		goto out;
	}
	offset += 4;
	fw_hdr->ndev = deviceNumber[fw_hdr->device];

out:
	return offset;
}

static int fw_parse_variable_header_git(struct tasdevice_priv
	*tas_priv, const struct firmware *fmw, int offset)
{
	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);

	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
	if (offset < 0)
		goto out;
	if (fw_hdr->ndev != tas_priv->ndev) {
		dev_err(tas_priv->dev,
			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
			__func__, fw_hdr->ndev, tas_priv->ndev);
		offset = -EINVAL;
	}

out:
	return offset;
}

static int fw_parse_block_data(struct tasdevice_fw *tas_fmw,
	struct tasdev_blk *block, const struct firmware *fmw, int offset)
{
	unsigned char *data = (unsigned char *)fmw->data;
	int n;

	if (offset + 8 > fmw->size) {
		dev_err(tas_fmw->dev, "%s: Type error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	block->type = get_unaligned_be32(&data[offset]);
	offset += 4;

	if (tas_fmw->fw_hdr.fixed_hdr.drv_ver >= PPC_DRIVER_CRCCHK) {
		if (offset + 8 > fmw->size) {
			dev_err(tas_fmw->dev, "PChkSumPresent error\n");
			offset = -EINVAL;
			goto out;
		}
		block->is_pchksum_present = data[offset];
		offset++;

		block->pchksum = data[offset];
		offset++;

		block->is_ychksum_present = data[offset];
		offset++;

		block->ychksum = data[offset];
		offset++;
	} else {
		block->is_pchksum_present = 0;
		block->is_ychksum_present = 0;
	}

	block->nr_cmds = get_unaligned_be32(&data[offset]);
	offset += 4;

	n = block->nr_cmds * 4;
	if (offset + n > fmw->size) {
		dev_err(tas_fmw->dev,
			"%s: File Size(%lu) error offset = %d n = %d\n",
			__func__, (unsigned long)fmw->size, offset, n);
		offset = -EINVAL;
		goto out;
	}
	/* instead of kzalloc+memcpy */
	block->data = kmemdup(&data[offset], n, GFP_KERNEL);
	if (!block->data) {
		offset = -ENOMEM;
		goto out;
	}
	offset += n;

out:
	return offset;
}

/* When parsing error occurs, all the memory resource will be released
 * in the end of tasdevice_rca_ready.
 */
static int fw_parse_data(struct tasdevice_fw *tas_fmw,
	struct tasdevice_data *img_data, const struct firmware *fmw,
	int offset)
{
	const unsigned char *data = (unsigned char *)fmw->data;
	struct tasdev_blk *blk;
	unsigned int i;
	int n;

	if (offset + 64 > fmw->size) {
		dev_err(tas_fmw->dev, "%s: Name error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	memcpy(img_data->name, &data[offset], 64);
	offset += 64;

	n = strlen((char *)&data[offset]);
	n++;
	if (offset + n + 2 > fmw->size) {
		dev_err(tas_fmw->dev, "%s: Description error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	offset += n;
	img_data->nr_blk = get_unaligned_be16(&data[offset]);
	offset += 2;

	img_data->dev_blks = kzalloc_objs(struct tasdev_blk, img_data->nr_blk);
	if (!img_data->dev_blks) {
		offset = -ENOMEM;
		goto out;
	}
	for (i = 0; i < img_data->nr_blk; i++) {
		blk = &(img_data->dev_blks[i]);
		offset = fw_parse_block_data(tas_fmw, blk, fmw, offset);
		if (offset < 0) {
			offset = -EINVAL;
			goto out;
		}
	}

out:
	return offset;
}

/* When parsing error occurs, all the memory resource will be released
 * in the end of tasdevice_rca_ready.
 */
static int fw_parse_program_data(struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	unsigned char *buf = (unsigned char *)fmw->data;
	struct tasdevice_prog *program;
	int i;

	if (offset + 2 > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	tas_fmw->nr_programs = get_unaligned_be16(&buf[offset]);
	offset += 2;

	if (tas_fmw->nr_programs == 0) {
		/*Not error in calibration Data file, return directly*/
		dev_info(tas_priv->dev, "%s: No Programs data, maybe calbin\n",
			__func__);
		goto out;
	}

	tas_fmw->programs =
		kzalloc_objs(struct tasdevice_prog, tas_fmw->nr_programs);
	if (!tas_fmw->programs) {
		offset = -ENOMEM;
		goto out;
	}
	for (i = 0; i < tas_fmw->nr_programs; i++) {
		int n = 0;

		program = &(tas_fmw->programs[i]);
		if (offset + 64 > fmw->size) {
			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
			offset = -EINVAL;
			goto out;
		}
		offset += 64;

		n = strlen((char *)&buf[offset]);
		/* skip '\0' and 5 unused bytes */
		n += 6;
		if (offset + n > fmw->size) {
			dev_err(tas_priv->dev, "Description err\n");
			offset = -EINVAL;
			goto out;
		}

		offset += n;

		offset = fw_parse_data(tas_fmw, &(program->dev_data), fmw,
			offset);
		if (offset < 0)
			goto out;
	}

out:
	return offset;
}

/* When parsing error occurs, all the memory resource will be released
 * in the end of tasdevice_rca_ready.
 */
static int fw_parse_configuration_data(
	struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw,
	const struct firmware *fmw, int offset)
{
	unsigned char *data = (unsigned char *)fmw->data;
	struct tasdevice_config *config;
	unsigned int i;
	int n;

	if (offset + 2 > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	tas_fmw->nr_configurations = get_unaligned_be16(&data[offset]);
	offset += 2;

	if (tas_fmw->nr_configurations == 0) {
		dev_err(tas_priv->dev, "%s: Conf is zero\n", __func__);
		/*Not error for calibration Data file, return directly*/
		goto out;
	}
	tas_fmw->configs = kzalloc_objs(struct tasdevice_config,
					tas_fmw->nr_configurations);
	if (!tas_fmw->configs) {
		offset = -ENOMEM;
		goto out;
	}
	for (i = 0; i < tas_fmw->nr_configurations; i++) {
		config = &(tas_fmw->configs[i]);
		if (offset + 64 > fmw->size) {
			dev_err(tas_priv->dev, "File Size err\n");
			offset = -EINVAL;
			goto out;
		}
		memcpy(config->name, &data[offset], 64);
		offset += 64;

		n = strlen((char *)&data[offset]);
		n += 15;
		if (offset + n > fmw->size) {
			dev_err(tas_priv->dev, "Description err\n");
			offset = -EINVAL;
			goto out;
		}

		offset += n;

		offset = fw_parse_data(tas_fmw, &(config->dev_data),
			fmw, offset);
		if (offset < 0)
			goto out;
	}

out:
	return offset;
}

static bool check_inpage_yram_rg(struct tas_crc *cd,
	unsigned char reg, unsigned char len)
{
	bool in = false;


	if (reg <= TAS2781_YRAM5_END_REG &&
		reg >= TAS2781_YRAM5_START_REG) {
		if (reg + len > TAS2781_YRAM5_END_REG)
			cd->len = TAS2781_YRAM5_END_REG - reg + 1;
		else
			cd->len = len;
		cd->offset = reg;
		in = true;
	} else if (reg < TAS2781_YRAM5_START_REG) {
		if (reg + len > TAS2781_YRAM5_START_REG) {
			cd->offset = TAS2781_YRAM5_START_REG;
			cd->len = len - TAS2781_YRAM5_START_REG + reg;
			in = true;
		}
	}

	return in;
}

static bool check_inpage_yram_bk1(struct tas_crc *cd,
	unsigned char page, unsigned char reg, unsigned char len)
{
	bool in = false;

	if (page == TAS2781_YRAM1_PAGE) {
		if (reg >= TAS2781_YRAM1_START_REG) {
			cd->offset = reg;
			cd->len = len;
			in = true;
		} else if (reg + len > TAS2781_YRAM1_START_REG) {
			cd->offset = TAS2781_YRAM1_START_REG;
			cd->len = len - TAS2781_YRAM1_START_REG + reg;
			in = true;
		}
	} else if (page == TAS2781_YRAM3_PAGE)
		in = check_inpage_yram_rg(cd, reg, len);

	return in;
}

/* Return Code:
 * true -- the registers are in the inpage yram
 * false -- the registers are NOT in the inpage yram
 */
static bool check_inpage_yram(struct tas_crc *cd, unsigned char book,
	unsigned char page, unsigned char reg, unsigned char len)
{
	bool in = false;

	if (book == TAS2781_YRAM_BOOK1) {
		in = check_inpage_yram_bk1(cd, page, reg, len);
		goto end;
	}
	if (book == TAS2781_YRAM_BOOK2 && page == TAS2781_YRAM5_PAGE)
		in = check_inpage_yram_rg(cd, reg, len);

end:
	return in;
}

static bool check_inblock_yram_bk(struct tas_crc *cd,
	unsigned char page, unsigned char reg, unsigned char len)
{
	bool in = false;

	if ((page >= TAS2781_YRAM4_START_PAGE &&
		page <= TAS2781_YRAM4_END_PAGE) ||
		(page >= TAS2781_YRAM2_START_PAGE &&
		page <= TAS2781_YRAM2_END_PAGE)) {
		if (reg <= TAS2781_YRAM2_END_REG &&
			reg >= TAS2781_YRAM2_START_REG) {
			cd->offset = reg;
			cd->len = len;
			in = true;
		} else if (reg < TAS2781_YRAM2_START_REG) {
			if (reg + len - 1 >= TAS2781_YRAM2_START_REG) {
				cd->offset = TAS2781_YRAM2_START_REG;
				cd->len = reg + len - TAS2781_YRAM2_START_REG;
				in = true;
			}
		}
	}

	return in;
}

/* Return Code:
 * true -- the registers are in the inblock yram
 * false -- the registers are NOT in the inblock yram
 */
static bool check_inblock_yram(struct tas_crc *cd, unsigned char book,
	unsigned char page, unsigned char reg, unsigned char len)
{
	bool in = false;

	if (book == TAS2781_YRAM_BOOK1 || book == TAS2781_YRAM_BOOK2)
		in = check_inblock_yram_bk(cd, page, reg, len);

	return in;
}

static bool check_yram(struct tas_crc *cd, unsigned char book,
	unsigned char page, unsigned char reg, unsigned char len)
{
	bool in;

	in = check_inpage_yram(cd, book, page, reg, len);
	if (in)
		goto end;
	in = check_inblock_yram(cd, book, page, reg, len);

end:
	return in;
}

static int tasdev_multibytes_chksum(struct tasdevice_priv *tasdevice,
	unsigned short chn, unsigned char book, unsigned char page,
	unsigned char reg, unsigned int len)
{
	struct tas_crc crc_data;
	unsigned char crc_chksum = 0;
	unsigned char nBuf1[128];
	int ret = 0;
	int i;
	bool in;

	if ((reg + len - 1) > 127) {
		ret = -EINVAL;
		dev_err(tasdevice->dev, "firmware error\n");
		goto end;
	}

	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
		&& (reg == TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
		&& (len == 4)) {
		/*DSP swap command, pass */
		ret = 0;
		goto end;
	}

	in = check_yram(&crc_data, book, page, reg, len);
	if (!in)
		goto end;

	if (len == 1) {
		dev_err(tasdevice->dev, "firmware error\n");
		ret = -EINVAL;
		goto end;
	}

	ret = tasdevice->dev_bulk_read(tasdevice, chn,
		TASDEVICE_REG(book, page, crc_data.offset),
		nBuf1, crc_data.len);
	if (ret < 0)
		goto end;

	for (i = 0; i < crc_data.len; i++) {
		if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
			&& (page == TASDEVICE_PAGE_ID(
			TAS2781_SA_COEFF_SWAP_REG))
			&& ((i + crc_data.offset)
			>= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
			&& ((i + crc_data.offset)
			<= (TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG)
			+ 4)))
			/*DSP swap command, bypass */
			continue;
		else
			crc_chksum += crc8(tasdevice->crc8_lkp_tbl, &nBuf1[i],
				1, 0);
	}

	ret = crc_chksum;

end:
	return ret;
}

static int do_singlereg_checksum(struct tasdevice_priv *tasdevice,
	unsigned short chl, unsigned char book, unsigned char page,
	unsigned char reg, unsigned char val)
{
	struct tas_crc crc_data;
	unsigned int nData1;
	int ret = 0;
	bool in;

	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
		&& (reg >= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
		&& (reg <= (TASDEVICE_PAGE_REG(
		TAS2781_SA_COEFF_SWAP_REG) + 4))) {
		/*DSP swap command, pass */
		ret = 0;
		goto end;
	}

	in = check_yram(&crc_data, book, page, reg, 1);
	if (!in)
		goto end;
	ret = tasdevice->dev_read(tasdevice, chl,
		TASDEVICE_REG(book, page, reg), &nData1);
	if (ret < 0)
		goto end;

	if (nData1 != val) {
		dev_err(tasdevice->dev,
			"B[0x%x]P[0x%x]R[0x%x] W[0x%x], R[0x%x]\n",
			book, page, reg, val, nData1);
		tasdevice->tasdevice[chl].err_code |= ERROR_YRAM_CRCCHK;
		ret = -EAGAIN;
		goto end;
	}

	ret = crc8(tasdevice->crc8_lkp_tbl, &val, 1, 0);

end:
	return ret;
}

static void set_err_prg_cfg(unsigned int type, struct tasdevice *dev)
{
	if ((type == MAIN_ALL_DEVICES) || (type == MAIN_DEVICE_A)
		|| (type == MAIN_DEVICE_B) || (type == MAIN_DEVICE_C)
		|| (type == MAIN_DEVICE_D))
		dev->cur_prog = -1;
	else
		dev->cur_conf = -1;
}

static int 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)
{
	int ret;

	if (len > 1)
		ret = tasdev_multibytes_chksum(tas_priv, chn, book, page, reg,
			len);
	else
		ret = do_singlereg_checksum(tas_priv, chn, book, page, reg,
			val);

	if (ret > 0) {
		*crc_chksum += (unsigned char)ret;
		goto end;
	}

	if (ret != -EAGAIN)
		goto end;

	block->nr_retry--;
	if (block->nr_retry > 0)
		goto end;

	set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);

end:
	return ret;
}

static int 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)
{
	int ret;

	if (len > 1) {
		ret = tasdevice_dev_bulk_write(tas_priv, chn,
			TASDEVICE_REG(book, page, reg), data + 3, len);
		if (ret < 0)
			goto end;
		if (block->is_ychksum_present)
			ret = tasdev_bytes_chksum(tas_priv, block, chn,
				book, page, reg, len, 0, crc_chksum);
	} else {
		ret = tasdevice_dev_write(tas_priv, chn,
			TASDEVICE_REG(book, page, reg), data[3]);
		if (ret < 0)
			goto end;
		if (block->is_ychksum_present)
			ret = tasdev_bytes_chksum(tas_priv, block, chn, book,
				page, reg, 1, data[3], crc_chksum);
	}

	if (!block->is_ychksum_present || ret >= 0) {
		*nr_cmds += 1;
		if (len >= 2)
			*nr_cmds += ((len - 2) / 4) + 1;
	}

end:
	return ret;
}

static int tasdev_block_chksum(struct tasdevice_priv *tas_priv,
	struct tasdev_blk *block, int chn)
{
	unsigned int nr_value;
	int ret;

	ret = tas_priv->dev_read(tas_priv, chn, TASDEVICE_CHECKSUM_REG,
		&nr_value);
	if (ret < 0) {
		dev_err(tas_priv->dev, "%s: Chn %d\n", __func__, chn);
		set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);
		goto end;
	}

	if ((nr_value & 0xff) != block->pchksum) {
		dev_err(tas_priv->dev, "%s: Blk PChkSum Chn %d ", __func__,
			chn);
		dev_err(tas_priv->dev, "PChkSum = 0x%x, Reg = 0x%x\n",
			block->pchksum, (nr_value & 0xff));
		tas_priv->tasdevice[chn].err_code |= ERROR_PRAM_CRCCHK;
		ret = -EAGAIN;
		block->nr_retry--;

		if (block->nr_retry <= 0)
			set_err_prg_cfg(block->type,
				&tas_priv->tasdevice[chn]);
	} else
		tas_priv->tasdevice[chn].err_code &= ~ERROR_PRAM_CRCCHK;

end:
	return ret;
}

static int tasdev_load_blk(struct tasdevice_priv *tas_priv,
	struct tasdev_blk *block, int chn)
{
	unsigned int sleep_time;
	unsigned int len;
	unsigned int nr_cmds;
	unsigned char *data;
	unsigned char crc_chksum = 0;
	unsigned char offset;
	unsigned char book;
	unsigned char page;
	unsigned char val;
	int ret = 0;

	while (block->nr_retry > 0) {
		if (block->is_pchksum_present) {
			ret = tasdevice_dev_write(tas_priv, chn,
				TASDEVICE_CHECKSUM_REG, 0);
			if (ret < 0)
				break;
		}

		if (block->is_ychksum_present)
			crc_chksum = 0;

		nr_cmds = 0;

		while (nr_cmds < block->nr_cmds) {
			data = block->data + nr_cmds * 4;

			book = data[0];
			page = data[1];
			offset = data[2];
			val = data[3];

			nr_cmds++;
			/*Single byte write*/
			if (offset <= 0x7F) {
				ret = tasdevice_dev_write(tas_priv, chn,
					TASDEVICE_REG(book, page, offset),
					val);
				if (ret < 0)
					goto end;
				if (block->is_ychksum_present) {
					ret = tasdev_bytes_chksum(tas_priv,
						block, chn, book, page, offset,
						1, val, &crc_chksum);
					if (ret < 0)
						break;
				}
				continue;
			}
			/*sleep command*/
			if (offset == 0x81) {
				/*book -- data[0] page -- data[1]*/
				sleep_time = ((book << 8) + page)*1000;
				usleep_range(sleep_time, sleep_time + 50);
				continue;
			}
			/*Multiple bytes write*/
			if (offset == 0x85) {
				data += 4;
				len = (book << 8) + page;
				book = data[0];
				page = data[1];
				offset = data[2];
				ret = tasdev_multibytes_wr(tas_priv,
					block, chn, book, page, offset, data,
					len, &nr_cmds, &crc_chksum);
				if (ret < 0)
					break;
			}
		}
		if (ret == -EAGAIN) {
			if (block->nr_retry > 0)
				continue;
		} else if (ret < 0) /*err in current device, skip it*/
			break;

		if (block->is_pchksum_present) {
			ret = tasdev_block_chksum(tas_priv, block, chn);
			if (ret == -EAGAIN) {
				if (block->nr_retry > 0)
					continue;
			} else if (ret < 0) /*err in current device, skip it*/
				break;
		}

		if (block->is_ychksum_present) {
			/* TBD, open it when FW ready */
			dev_err(tas_priv->dev,
				"Blk YChkSum: FW = 0x%x, YCRC = 0x%x\n",
				block->ychksum, crc_chksum);

			tas_priv->tasdevice[chn].err_code &=
				~ERROR_YRAM_CRCCHK;
			ret = 0;
		}
		/*skip current blk*/
		break;
	}

end:
	return ret;
}

static int tasdevice_load_block(struct tasdevice_priv *tas_priv,
	struct tasdev_blk *block)
{
	int chnend = 0;
	int ret = 0;
	int chn = 0;
	int rc = 0;

	switch (block->type) {
	case MAIN_ALL_DEVICES:
		chn = 0;
		chnend = tas_priv->ndev;
		break;
	case MAIN_DEVICE_A:
	case COEFF_DEVICE_A:
	case PRE_DEVICE_A:
		chn = 0;
		chnend = 1;
		break;
	case MAIN_DEVICE_B:
	case COEFF_DEVICE_B:
	case PRE_DEVICE_B:
		chn = 1;
		chnend = 2;
		break;
	case MAIN_DEVICE_C:
	case COEFF_DEVICE_C:
	case PRE_DEVICE_C:
		chn = 2;
		chnend = 3;
		break;
	case MAIN_DEVICE_D:
	case COEFF_DEVICE_D:
	case PRE_DEVICE_D:
		chn = 3;
		chnend = 4;
		break;
	default:
		dev_dbg(tas_priv->dev, "load blk: Other Type = 0x%02x\n",
			block->type);
		break;
	}

	for (; chn < chnend; chn++) {
		block->nr_retry = 6;
		if (tas_priv->tasdevice[chn].is_loading == false)
			continue;
		ret = tasdev_load_blk(tas_priv, block, chn);
		if (ret < 0)
			dev_err(tas_priv->dev, "dev %d, Blk (%d) load error\n",
				chn, block->type);
		rc |= ret;
	}

	return rc;
}

static void dspbin_type_check(struct tasdevice_priv *tas_priv,
	unsigned int ppcver)
{
	if (ppcver >= PPC3_VERSION_TAS2781_ALPHA_MIN) {
		if (ppcver >= PPC3_VERSION_TAS2781_BETA_MIN)
			tas_priv->dspbin_typ = TASDEV_BETA;
		else if (ppcver >= PPC3_VERSION_TAS2781_BASIC_MIN)
			tas_priv->dspbin_typ = TASDEV_BASIC;
		else
			tas_priv->dspbin_typ = TASDEV_ALPHA;
	}
	if ((tas_priv->dspbin_typ != TASDEV_BASIC) &&
		(ppcver < PPC3_VERSION_TAS5825_BASE))
		tas_priv->fw_parse_fct_param_address =
			fw_parse_fct_param_address;
}

static int dspfw_default_callback(struct tasdevice_priv *tas_priv,
	unsigned int drv_ver, unsigned int ppcver)
{
	int rc = 0;

	if (drv_ver == 0x100) {
		if (ppcver >= PPC3_VERSION_TAS5825_BASE) {
			tas_priv->fw_parse_variable_header =
				fw_parse_variable_header_kernel;
			tas_priv->fw_parse_program_data =
				fw_parse_tas5825_program_data_kernel;
			tas_priv->fw_parse_configuration_data =
				fw_parse_tas5825_configuration_data_kernel;
			tas_priv->tasdevice_load_block =
				tasdevice_load_block_kernel;
			dspbin_type_check(tas_priv, ppcver);
		} else if (ppcver >= PPC3_VERSION_BASE) {
			tas_priv->fw_parse_variable_header =
				fw_parse_variable_header_kernel;
			tas_priv->fw_parse_program_data =
				fw_parse_program_data_kernel;
			tas_priv->fw_parse_configuration_data =
				fw_parse_configuration_data_kernel;
			tas_priv->tasdevice_load_block =
				tasdevice_load_block_kernel;
			dspbin_type_check(tas_priv, ppcver);
		} else {
			switch (ppcver) {
			case 0x00:
				tas_priv->fw_parse_variable_header =
					fw_parse_variable_header_git;
				tas_priv->fw_parse_program_data =
					fw_parse_program_data;
				tas_priv->fw_parse_configuration_data =
					fw_parse_configuration_data;
				tas_priv->tasdevice_load_block =
					tasdevice_load_block;
				break;
			default:
				dev_err(tas_priv->dev,
					"%s: PPCVer must be 0x0 or 0x%02x",
					__func__, PPC3_VERSION_BASE);
				dev_err(tas_priv->dev, " Current:0x%02x\n",
					ppcver);
				rc = -EINVAL;
				break;
			}
		}
	} else {
		dev_err(tas_priv->dev,
			"DrvVer must be 0x0, 0x230 or above 0x230 ");
		dev_err(tas_priv->dev, "current is 0x%02x\n", drv_ver);
		rc = -EINVAL;
	}

	return rc;
}

static int fw_parse_header(struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
	static const unsigned char magic_number[] = { 0x35, 0x35, 0x35, 0x32 };
	const unsigned char *buf = (unsigned char *)fmw->data;

	if (offset + 92 > fmw->size) {
		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	if (memcmp(&buf[offset], magic_number, 4)) {
		dev_err(tas_priv->dev, "%s: Magic num NOT match\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	offset += 4;

	/* Convert data[offset], data[offset + 1], data[offset + 2] and
	 * data[offset + 3] into host
	 */
	fw_fixed_hdr->fwsize = get_unaligned_be32(&buf[offset]);
	offset += 4;
	if (fw_fixed_hdr->fwsize != fmw->size) {
		dev_err(tas_priv->dev, "File size not match, %lu %u",
			(unsigned long)fmw->size, fw_fixed_hdr->fwsize);
		offset = -EINVAL;
		goto out;
	}
	offset += 4;
	fw_fixed_hdr->ppcver = get_unaligned_be32(&buf[offset]);
	offset += 8;
	fw_fixed_hdr->drv_ver = get_unaligned_be32(&buf[offset]);
	offset += 72;

 out:
	return offset;
}

static int fw_parse_variable_hdr_cal(struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);

	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
	if (offset < 0)
		goto out;
	if (fw_hdr->ndev != 1) {
		dev_err(tas_priv->dev,
			"%s: calbin must be 1, but currently ndev(%u)\n",
			__func__, fw_hdr->ndev);
		offset = -EINVAL;
	}

out:
	return offset;
}

static inline int check_cal_bin_data(struct device *dev,
	const unsigned char *data, const char *name)
{
	if (data[2] != 0x85 || data[1] != 4) {
		dev_err(dev, "Invalid cal bin file in %s\n", name);
		return -1;
	}
	return 0;
}

static void calbin_conversion(struct tasdevice_priv *priv,
	struct tasdevice_fw *tas_fmw)
{
	struct calidata *cali_data = &priv->cali_data;
	unsigned char *calbin_data = cali_data->data;
	struct cali_reg *p = &cali_data->cali_reg_array;
	struct tasdevice_calibration *calibration;
	struct tasdevice_data *img_data;
	struct tasdev_blk *blk;
	unsigned char *data;
	int chn, k;

	if (cali_data->total_sz != priv->ndev *
		(cali_data->cali_dat_sz_per_dev + 1)) {
		dev_err(priv->dev, "%s: cali_data size err\n",
			__func__);
		return;
	}
	calibration = &(tas_fmw->calibrations[0]);
	img_data = &(calibration->dev_data);

	if (img_data->nr_blk != 1) {
		dev_err(priv->dev, "%s: Invalid nr_blk, wrong cal bin\n",
			__func__);
		return;
	}

	blk = &(img_data->dev_blks[0]);
	if (blk->nr_cmds != 15) {
		dev_err(priv->dev, "%s: Invalid nr_cmds, wrong cal bin\n",
			__func__);
		return;
	}

	switch (blk->type) {
	case COEFF_DEVICE_A:
		chn = 0;
		break;
	case COEFF_DEVICE_B:
		chn = 1;
		break;
	case COEFF_DEVICE_C:
		chn = 2;
		break;
	case COEFF_DEVICE_D:
		chn = 3;
		break;
	default:
		dev_err(priv->dev, "%s: Other Type = 0x%02x\n",
			__func__, blk->type);
		return;
	}
	k = chn * (cali_data->cali_dat_sz_per_dev + 1);

	data = blk->data;
	if (check_cal_bin_data(priv->dev, data, "r0_reg") < 0)
		return;
	p->r0_reg = TASDEVICE_REG(data[4], data[5], data[6]);
	COPY_CAL_DATA(k);

	data = blk->data + 12;
	if (check_cal_bin_data(priv->dev, data, "r0_low_reg") < 0)
		return;
	p->r0_low_reg = TASDEVICE_REG(data[4], data[5], data[6]);
	COPY_CAL_DATA(k + 4);

	data = blk->data + 24;
	if (check_cal_bin_data(priv->dev, data, "invr0_reg") < 0)
		return;
	p->invr0_reg = TASDEVICE_REG(data[4], data[5], data[6]);
	COPY_CAL_DATA(k + 8);

	data = blk->data + 36;
	if (check_cal_bin_data(priv->dev, data, "pow_reg") < 0)
		return;
	p->pow_reg = TASDEVICE_REG(data[4], data[5], data[6]);
	COPY_CAL_DATA(k + 12);

	data = blk->data + 48;
	if (check_cal_bin_data(priv->dev, data, "tlimit_reg") < 0)
		return;
	p->tlimit_reg = TASDEVICE_REG(data[4], data[5], data[6]);
	COPY_CAL_DATA(k + 16);

	calbin_data[k] = chn;
}

/* When calibrated data parsing error occurs, DSP can still work with default
 * calibrated data, memory resource related to calibrated data will be
 * released in the tasdevice_codec_remove.
 */
static int fw_parse_calibration_data(struct tasdevice_priv *tas_priv,
	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
{
	struct tasdevice_calibration *calibration;
	unsigned char *data = (unsigned char *)fmw->data;
	unsigned int i, n;

	if (offset + 2 > fmw->size) {
		dev_err(tas_priv->dev, "%s: Calibrations error\n", __func__);
		offset = -EINVAL;
		goto out;
	}
	tas_fmw->nr_calibrations = get_unaligned_be16(&data[offset]);
	offset += 2;

	if (tas_fmw->nr_calibrations != 1) {
		dev_err(tas_priv->dev,
			"%s: only supports one calibration (%d)!\n",
			__func__, tas_fmw->nr_calibrations);
		goto out;
	}

	tas_fmw->calibrations = kzalloc_objs(struct tasdevice_calibration,
					     tas_fmw->nr_calibrations);
	if (!tas_fmw->calibrations) {
		offset = -ENOMEM;
		goto out;
	}
	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
		if (offset + 64 > fmw->size) {
			dev_err(tas_priv->dev, "Calibrations error\n");
			offset = -EINVAL;
			goto out;
		}
		calibration = &(tas_fmw->calibrations[i]);
		offset += 64;

		n = strlen((char *)&data[offset]);
		/* skip '\0' and 2 unused bytes */
		n += 3;
		if (offset + n > fmw->size) {
			dev_err(tas_priv->dev, "Description err\n");
			offset = -EINVAL;
			goto out;
		}
		offset += n;

		offset = fw_parse_data(tas_fmw, &(calibration->dev_data), fmw,
			offset);
		if (offset < 0)
			goto out;
	}

	calbin_conversion(tas_priv, tas_fmw);
out:
	return offset;
}

int tas2781_load_calibration(void *context, char *file_name,
	unsigned short i)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
	struct tasdevice *tasdev = &(tas_priv->tasdevice[i]);
	const struct firmware *fw_entry = NULL;
	struct tasdevice_fw *tas_fmw;
	struct firmware fmw;
	int offset = 0;
	int ret;

	ret = request_firmware(&fw_entry, file_name, tas_priv->dev);
	if (ret) {
		dev_err(tas_priv->dev, "%s: Request firmware %s failed\n",
			__func__, file_name);
		goto out;
	}

	if (!fw_entry->size) {
		dev_err(tas_priv->dev, "%s: file read error: size = %lu\n",
			__func__, (unsigned long)fw_entry->size);
		ret = -EINVAL;
		goto out;
	}
	fmw.size = fw_entry->size;
	fmw.data = fw_entry->data;

	tas_fmw = tasdev->cali_data_fmw = kzalloc_obj(struct tasdevice_fw);
	if (!tasdev->cali_data_fmw) {
		ret = -ENOMEM;
		goto out;
	}
	tas_fmw->dev = tas_priv->dev;
	offset = fw_parse_header(tas_priv, tas_fmw, &fmw, offset);
	if (offset == -EINVAL) {
		dev_err(tas_priv->dev, "fw_parse_header EXIT!\n");
		ret = offset;
		goto out;
	}
	offset = fw_parse_variable_hdr_cal(tas_priv, tas_fmw, &fmw, offset);
	if (offset == -EINVAL) {
		dev_err(tas_priv->dev,
			"%s: fw_parse_variable_header_cal EXIT!\n", __func__);
		ret = offset;
		goto out;
	}
	offset = fw_parse_program_data(tas_priv, tas_fmw, &fmw, offset);
	if (offset < 0) {
		dev_err(tas_priv->dev, "fw_parse_program_data EXIT!\n");
		ret = offset;
		goto out;
	}
	offset = fw_parse_configuration_data(tas_priv, tas_fmw, &fmw, offset);
	if (offset < 0) {
		dev_err(tas_priv->dev, "fw_parse_configuration_data EXIT!\n");
		ret = offset;
		goto out;
	}
	offset = fw_parse_calibration_data(tas_priv, tas_fmw, &fmw, offset);
	if (offset < 0) {
		dev_err(tas_priv->dev, "fw_parse_calibration_data EXIT!\n");
		ret = offset;
		goto out;
	}

out:
	release_firmware(fw_entry);

	return ret;
}
EXPORT_SYMBOL_NS_GPL(tas2781_load_calibration, "SND_SOC_TAS2781_FMWLIB");

static int tasdevice_dspfw_ready(const struct firmware *fmw,
	void *context)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr;
	struct tasdevice_fw *tas_fmw;
	int offset = 0;
	int ret;

	if (!fmw || !fmw->data) {
		dev_err(tas_priv->dev, "%s: Failed to read firmware %s\n",
			__func__, tas_priv->coef_binaryname);
		return -EINVAL;
	}

	tas_priv->fmw = kzalloc_obj(struct tasdevice_fw);
	if (!tas_priv->fmw)
		return -ENOMEM;

	tas_fmw = tas_priv->fmw;
	tas_fmw->dev = tas_priv->dev;
	offset = fw_parse_header(tas_priv, tas_fmw, fmw, offset);

	if (offset == -EINVAL)
		return -EINVAL;

	fw_fixed_hdr = &(tas_fmw->fw_hdr.fixed_hdr);
	/* Support different versions of firmware */
	switch (fw_fixed_hdr->drv_ver) {
	case 0x301:
	case 0x302:
	case 0x502:
	case 0x503:
		tas_priv->fw_parse_variable_header =
			fw_parse_variable_header_kernel;
		tas_priv->fw_parse_program_data =
			fw_parse_program_data_kernel;
		tas_priv->fw_parse_configuration_data =
			fw_parse_configuration_data_kernel;
		tas_priv->tasdevice_load_block =
			tasdevice_load_block_kernel;
		break;
	case 0x202:
	case 0x400:
	case 0x401:
		tas_priv->fw_parse_variable_header =
			fw_parse_variable_header_git;
		tas_priv->fw_parse_program_data =
			fw_parse_program_data;
		tas_priv->fw_parse_configuration_data =
			fw_parse_configuration_data;
		tas_priv->tasdevice_load_block =
			tasdevice_load_block;
		break;
	default:
		ret = dspfw_default_callback(tas_priv,
			fw_fixed_hdr->drv_ver, fw_fixed_hdr->ppcver);
		if (ret)
			return ret;
		break;
	}

	offset = tas_priv->fw_parse_variable_header(tas_priv, fmw, offset);
	if (offset < 0)
		return offset;

	offset = tas_priv->fw_parse_program_data(tas_priv, tas_fmw, fmw,
		offset);
	if (offset < 0)
		return offset;

	offset = tas_priv->fw_parse_configuration_data(tas_priv,
		tas_fmw, fmw, offset);
	if (offset < 0)
		return offset;

	if (tas_priv->fw_parse_fct_param_address) {
		offset = tas_priv->fw_parse_fct_param_address(tas_priv,
			tas_fmw, fmw, offset);
		if (offset < 0)
			return offset;
	}

	return 0;
}

int tasdevice_dsp_parser(void *context)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
	const struct firmware *fw_entry;
	int ret;

	ret = request_firmware(&fw_entry, tas_priv->coef_binaryname,
		tas_priv->dev);
	if (ret) {
		dev_err(tas_priv->dev, "%s: load %s error\n", __func__,
			tas_priv->coef_binaryname);
		goto out;
	}

	ret = tasdevice_dspfw_ready(fw_entry, tas_priv);
	release_firmware(fw_entry);
	fw_entry = NULL;

out:
	return ret;
}
EXPORT_SYMBOL_NS_GPL(tasdevice_dsp_parser, "SND_SOC_TAS2781_FMWLIB");

static void tas2781_clear_calfirmware(struct tasdevice_fw *tas_fmw)
{
	struct tasdevice_calibration *calibration;
	struct tasdev_blk *block;
	struct tasdevice_data *im;
	unsigned int blks;
	int i;

	if (!tas_fmw->calibrations)
		goto out;

	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
		calibration = &(tas_fmw->calibrations[i]);
		if (!calibration)
			continue;

		im = &(calibration->dev_data);

		if (!im->dev_blks)
			continue;

		for (blks = 0; blks < im->nr_blk; blks++) {
			block = &(im->dev_blks[blks]);
			if (!block)
				continue;
			kfree(block->data);
		}
		kfree(im->dev_blks);
	}
	kfree(tas_fmw->calibrations);
out:
	kfree(tas_fmw);
}

void tasdevice_calbin_remove(void *context)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice *tasdev;
	int i;

	if (!tas_priv)
		return;

	for (i = 0; i < tas_priv->ndev; i++) {
		tasdev = &(tas_priv->tasdevice[i]);
		if (!tasdev->cali_data_fmw)
			continue;
		tas2781_clear_calfirmware(tasdev->cali_data_fmw);
		tasdev->cali_data_fmw = NULL;
	}
}
EXPORT_SYMBOL_NS_GPL(tasdevice_calbin_remove, "SND_SOC_TAS2781_FMWLIB");

void tasdevice_config_info_remove(void *context)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice_rca *rca = &(tas_priv->rcabin);
	struct tasdevice_config_info **ci = rca->cfg_info;
	int i, j;

	if (!ci)
		return;
	for (i = 0; i < rca->ncfgs; i++) {
		if (!ci[i])
			continue;
		if (ci[i]->blk_data) {
			for (j = 0; j < (int)ci[i]->real_nblocks; j++) {
				if (!ci[i]->blk_data[j])
					continue;
				kfree(ci[i]->blk_data[j]->regdata);
				kfree(ci[i]->blk_data[j]);
			}
			kfree(ci[i]->blk_data);
		}
		kfree(ci[i]);
	}
	kfree(ci);
}
EXPORT_SYMBOL_NS_GPL(tasdevice_config_info_remove, "SND_SOC_TAS2781_FMWLIB");

static int tasdevice_load_data(struct tasdevice_priv *tas_priv,
	struct tasdevice_data *dev_data)
{
	struct tasdev_blk *block;
	unsigned int i;
	int ret = 0;

	for (i = 0; i < dev_data->nr_blk; i++) {
		block = &(dev_data->dev_blks[i]);
		ret = tas_priv->tasdevice_load_block(tas_priv, block);
		if (ret < 0)
			break;
	}

	return ret;
}

static int tas2781_cali_preproc(struct tasdevice_priv *priv, int i)
{
	struct tas2781_cali_specific *spec = priv->tasdevice[i].cali_specific;
	struct calidata *cali_data = &priv->cali_data;
	struct cali_reg *p = &cali_data->cali_reg_array;
	unsigned char *data = cali_data->data;
	int rc;

	/*
	 * On TAS2781, if the Speaker calibrated impedance is lower than
	 * default value hard-coded inside the TAS2781, it will cuase vol
	 * lower than normal. In order to fix this issue, the parameter of
	 * SineGainI need updating.
	 */
	if (spec == NULL) {
		int k = i * (cali_data->cali_dat_sz_per_dev + 1);
		int re_org, re_cal, corrected_sin_gn, pg_id;
		unsigned char r0_deflt[4];

		spec = devm_kzalloc(priv->dev, sizeof(*spec), GFP_KERNEL);
		if (spec == NULL)
			return -ENOMEM;
		priv->tasdevice[i].cali_specific = spec;
		rc = tasdevice_dev_bulk_read(priv, i, p->r0_reg, r0_deflt, 4);
		if (rc < 0) {
			dev_err(priv->dev, "invalid RE from %d = %d\n", i, rc);
			return rc;
		}
		/*
		 * SineGainI need to be re-calculated, calculate the high 16
		 * bits.
		 */
		re_org = r0_deflt[0] << 8 | r0_deflt[1];
		re_cal = data[k + 1] << 8 | data[k + 2];
		if (re_org > re_cal) {
			rc = tasdevice_dev_read(priv, i, TAS2781_PG_REG,
						 &pg_id);
			if (rc < 0) {
				dev_err(priv->dev, "invalid PG id %d = %d\n",
					i, rc);
				return rc;
			}

			spec->sin_gni_reg = (pg_id == TAS2781_PG_1_0) ?
				TASDEVICE_REG(0, 0x1b, 0x34) :
				TASDEVICE_REG(0, 0x18, 0x1c);

			rc = tasdevice_dev_bulk_read(priv, i,
						      spec->sin_gni_reg,
						      spec->sin_gni, 4);
			if (rc < 0) {
				dev_err(priv->dev, "wrong sinegaini %d = %d\n",
					i, rc);
				return rc;
			}
			corrected_sin_gn = re_org * ((spec->sin_gni[0] << 8) +
						       spec->sin_gni[1]);
			corrected_sin_gn /= re_cal;
			spec->sin_gni[0] = corrected_sin_gn >> 8;
			spec->sin_gni[1] = corrected_sin_gn & 0xff;

			spec->is_sin_gn_flush = true;
		}
	}

	if (spec->is_sin_gn_flush) {
		rc = tasdevice_dev_bulk_write(priv, i, spec->sin_gni_reg,
						       spec->sin_gni, 4);
		if (rc < 0) {
			dev_err(priv->dev, "update failed %d = %d\n",
				i, rc);
			return rc;
		}
	}

	return 0;
}

static void tasdev_load_calibrated_data(struct tasdevice_priv *priv, int i)
{
	struct calidata *cali_data = &priv->cali_data;
	struct cali_reg *p = &cali_data->cali_reg_array;
	unsigned char *data = cali_data->data;
	int k = i * (cali_data->cali_dat_sz_per_dev + 1);
	int rc;

	if (data[k] != i) {
		dev_err(priv->dev, "%s: no cal-data for dev %d from usr-spc\n",
			__func__, i);
		return;
	}
	k++;

	if (priv->chip_id == TAS2781) {
		rc = tas2781_cali_preproc(priv, i);
		if (rc < 0)
			return;
	}

	rc = tasdevice_dev_bulk_write(priv, i, p->r0_reg, &(data[k]), 4);
	if (rc < 0) {
		dev_err(priv->dev, "chn %d r0_reg bulk_wr err = %d\n", i, rc);
		return;
	}
	k += 4;
	rc = tasdevice_dev_bulk_write(priv, i, p->r0_low_reg, &(data[k]), 4);
	if (rc < 0) {
		dev_err(priv->dev, "chn %d r0_low_reg err = %d\n", i, rc);
		return;
	}
	k += 4;
	rc = tasdevice_dev_bulk_write(priv, i, p->invr0_reg, &(data[k]), 4);
	if (rc < 0) {
		dev_err(priv->dev, "chn %d invr0_reg err = %d\n", i, rc);
		return;
	}
	k += 4;
	rc = tasdevice_dev_bulk_write(priv, i, p->pow_reg, &(data[k]), 4);
	if (rc < 0) {
		dev_err(priv->dev, "chn %d pow_reg bulk_wr err = %d\n", i, rc);
		return;
	}
	k += 4;
	rc = tasdevice_dev_bulk_write(priv, i, p->tlimit_reg, &(data[k]), 4);
	if (rc < 0) {
		dev_err(priv->dev, "chn %d tlimit_reg err = %d\n", i, rc);
		return;
	}
}

int tasdevice_select_tuningprm_cfg(void *context, int prm_no,
	int cfg_no, int rca_conf_no)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice_rca *rca = &(tas_priv->rcabin);
	struct tasdevice_config_info **cfg_info = rca->cfg_info;
	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
	struct tasdevice_prog *program;
	struct tasdevice_config *conf;
	int prog_status = 0;
	int status, i;

	if (!tas_fmw) {
		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
		goto out;
	}

	if (cfg_no >= tas_fmw->nr_configurations) {
		dev_err(tas_priv->dev,
			"%s: cfg(%d) is not in range of conf %u\n",
			__func__, cfg_no, tas_fmw->nr_configurations);
		goto out;
	}

	if (prm_no >= tas_fmw->nr_programs) {
		dev_err(tas_priv->dev,
			"%s: prm(%d) is not in range of Programs %u\n",
			__func__, prm_no, tas_fmw->nr_programs);
		goto out;
	}

	if (rca_conf_no >= rca->ncfgs || rca_conf_no < 0 ||
		!cfg_info) {
		dev_err(tas_priv->dev,
			"conf_no:%d should be in range from 0 to %u\n",
			rca_conf_no, rca->ncfgs-1);
		goto out;
	}

	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
		if (cfg_info[rca_conf_no]->active_dev & (1 << i)) {
			if (prm_no >= 0
				&& (tas_priv->tasdevice[i].cur_prog != prm_no
				|| tas_priv->force_fwload_status)) {
				tas_priv->tasdevice[i].cur_conf = -1;
				tas_priv->tasdevice[i].is_loading = true;
				prog_status++;
			}
		} else
			tas_priv->tasdevice[i].is_loading = false;
		tas_priv->tasdevice[i].is_loaderr = false;
	}

	if (prog_status) {
		program = &(tas_fmw->programs[prm_no]);
		tasdevice_load_data(tas_priv, &(program->dev_data));
		for (i = 0; i < tas_priv->ndev; i++) {
			if (tas_priv->tasdevice[i].is_loaderr == true)
				continue;
			if (tas_priv->tasdevice[i].is_loaderr == false &&
				tas_priv->tasdevice[i].is_loading == true)
				tas_priv->tasdevice[i].cur_prog = prm_no;
		}
	}

	for (i = 0, status = 0; i < tas_priv->ndev; i++) {
		if (cfg_no >= 0
			&& tas_priv->tasdevice[i].cur_conf != cfg_no
			&& (cfg_info[rca_conf_no]->active_dev & (1 << i))
			&& (tas_priv->tasdevice[i].is_loaderr == false)) {
			status++;
			tas_priv->tasdevice[i].is_loading = true;
		} else
			tas_priv->tasdevice[i].is_loading = false;
	}

	if (status) {
		conf = &(tas_fmw->configs[cfg_no]);
		status = 0;
		tasdevice_load_data(tas_priv, &(conf->dev_data));
		for (i = 0; i < tas_priv->ndev; i++) {
			if (tas_priv->tasdevice[i].is_loaderr == true) {
				status |= BIT(i + 4);
				continue;
			}

			if (tas_priv->tasdevice[i].is_loaderr == false &&
				tas_priv->tasdevice[i].is_loading == true) {
				tasdev_load_calibrated_data(tas_priv, i);
				tas_priv->tasdevice[i].cur_conf = cfg_no;
			}
		}
	} else {
		dev_dbg(tas_priv->dev, "%s: Unneeded loading dsp conf %d\n",
			__func__, cfg_no);
	}

	status |= cfg_info[rca_conf_no]->active_dev;

out:
	return prog_status;
}
EXPORT_SYMBOL_NS_GPL(tasdevice_select_tuningprm_cfg, "SND_SOC_TAS2781_FMWLIB");

int tasdevice_prmg_load(void *context, int prm_no)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
	struct tasdevice_prog *program;
	int prog_status = 0;
	int i;

	if (!tas_fmw) {
		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
		goto out;
	}

	if (prm_no >= tas_fmw->nr_programs) {
		dev_err(tas_priv->dev,
			"%s: prm(%d) is not in range of Programs %u\n",
			__func__, prm_no, tas_fmw->nr_programs);
		goto out;
	}

	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
		if (prm_no >= 0 && tas_priv->tasdevice[i].cur_prog != prm_no) {
			tas_priv->tasdevice[i].cur_conf = -1;
			tas_priv->tasdevice[i].is_loading = true;
			prog_status++;
		}
	}

	if (prog_status) {
		program = &(tas_fmw->programs[prm_no]);
		tasdevice_load_data(tas_priv, &(program->dev_data));
		for (i = 0; i < tas_priv->ndev; i++) {
			if (tas_priv->tasdevice[i].is_loaderr == true)
				continue;
			else if (tas_priv->tasdevice[i].is_loaderr == false
				&& tas_priv->tasdevice[i].is_loading == true)
				tas_priv->tasdevice[i].cur_prog = prm_no;
		}
	}

out:
	return prog_status;
}
EXPORT_SYMBOL_NS_GPL(tasdevice_prmg_load, "SND_SOC_TAS2781_FMWLIB");

void tasdevice_tuning_switch(void *context, int state)
{
	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
	int profile_cfg_id = tas_priv->rcabin.profile_cfg_id;

	/*
	 * Only RCA-based Playback can still work with no dsp program running
	 * inside the chip.
	 */
	switch (tas_priv->fw_state) {
	case TASDEVICE_RCA_FW_OK:
	case TASDEVICE_DSP_FW_ALL_OK:
		break;
	default:
		return;
	}

	if (state == 0) {
		if (tas_fmw && tas_priv->cur_prog < tas_fmw->nr_programs) {
			/* dsp mode or tuning mode */
			profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
			tasdevice_select_tuningprm_cfg(tas_priv,
				tas_priv->cur_prog, tas_priv->cur_conf,
				profile_cfg_id);
		}

		tasdevice_select_cfg_blk(tas_priv, profile_cfg_id,
			TASDEVICE_BIN_BLK_PRE_POWER_UP);
	} else {
		tasdevice_select_cfg_blk(tas_priv, profile_cfg_id,
			TASDEVICE_BIN_BLK_PRE_SHUTDOWN);
	}
}
EXPORT_SYMBOL_NS_GPL(tasdevice_tuning_switch, "SND_SOC_TAS2781_FMWLIB");

MODULE_DESCRIPTION("Texas Firmware Support");
MODULE_AUTHOR("Shenghao Ding, TI, <shenghao-ding@ti.com>");
MODULE_LICENSE("GPL");