[v4,3/3] ALSA: hda/tas2781: Firmware load for tas2781 hda driver based on SPI

Firmware download and parser lib for tas2781 hda spi driver.

Signed-off-by: Baojun Xu <baojun.xu@ti.com>

---
v4:
 - Add types.h included
 - Add tas2781-dsp.h included
 - Change error bit define from 0x40000000 to BIT(31)
 - Remove pre-block process as no active_dev needed
 - Change usleep_range() to fsleep()
 - Move variables froblk_offsetm tasdevice to tasdevice_priv
 - Move subblk_offset initial into default
 - Remove active_dev check
 - Move variables into tasdevice_priv structure
 - Change format for condition check in if
v3:
 - Update format and variables declare order.
 - Change format of multi conditions for if.
 - Remove casting which is not needed.
 - Change variables type to avoid casting.
 - Remove Unneeded parentheses.
 - Change if check to avoid goto.
 - Add {} for keep same style.
 - Remove some local variables, use elements in structure directly.
v2:
 - Remove file name in tas2781_spi_fwlib.c.
 - Remove #include <linux/i2c.h> as it not needed in SPI mode.
 - Change TAB to speace in micro define in tas2781_spi_fwlib.c.
 - Change to up-case for DSP.
 - Change all of multi-line comments format, empty first line.
 - Change all of sizeof(struct xx) to sizeof(*xx).
 - Remove Explicit casting for variables compare to avoid possible fault.
 - Return directly without goto.
 - Change 1 << xx to BIT(xx).
 - Remove deviceNumber[] as current SPI device will support one device only.
 - Add memory free before return error.
 - Change "buf[offset]; offset += 1" to buf[offset++].
 - Remove some debug information print.
 - Change firmware binary to single device mode.
 - Change all bexx_to_cpup() to get_unaligned_bexx().
 - Remove ndev process as current SPI device support single device only.
 - Remove chn and chnend for single device support only.
 - Change all of registers read/write function, remove parameter chn.
 - Create new function for single write, burst write, delay, field write
   in tasdevice_process_block().
---
 sound/pci/hda/tas2781_spi_fwlib.c | 2252 +++++++++++++++++++++++++++++
 1 file changed, 2252 insertions(+)
 create mode 100644 sound/pci/hda/tas2781_spi_fwlib.c

On Tue, 30 Apr 2024 09:25:44 +0200,
Baojun Xu wrote:
> 
> Firmware download and parser lib for tas2781 hda spi driver.
> 
> Signed-off-by: Baojun Xu <baojun.xu@ti.com>


When this is no independent module but also included in tas2781-spi
driver module, you don't need MODULE_*() for this file.  Otherwise
they conflict with the definitions in tas2781_hda_spi.c.


Takashi

> 
> ---
> v4:
>  - Add types.h included
>  - Add tas2781-dsp.h included
>  - Change error bit define from 0x40000000 to BIT(31)
>  - Remove pre-block process as no active_dev needed
>  - Change usleep_range() to fsleep()
>  - Move variables froblk_offsetm tasdevice to tasdevice_priv
>  - Move subblk_offset initial into default
>  - Remove active_dev check
>  - Move variables into tasdevice_priv structure
>  - Change format for condition check in if
> v3:
>  - Update format and variables declare order.
>  - Change format of multi conditions for if.
>  - Remove casting which is not needed.
>  - Change variables type to avoid casting.
>  - Remove Unneeded parentheses.
>  - Change if check to avoid goto.
>  - Add {} for keep same style.
>  - Remove some local variables, use elements in structure directly.
> v2:
>  - Remove file name in tas2781_spi_fwlib.c.
>  - Remove #include <linux/i2c.h> as it not needed in SPI mode.
>  - Change TAB to speace in micro define in tas2781_spi_fwlib.c.
>  - Change to up-case for DSP.
>  - Change all of multi-line comments format, empty first line.
>  - Change all of sizeof(struct xx) to sizeof(*xx).
>  - Remove Explicit casting for variables compare to avoid possible fault.
>  - Return directly without goto.
>  - Change 1 << xx to BIT(xx).
>  - Remove deviceNumber[] as current SPI device will support one device only.
>  - Add memory free before return error.
>  - Change "buf[offset]; offset += 1" to buf[offset++].
>  - Remove some debug information print.
>  - Change firmware binary to single device mode.
>  - Change all bexx_to_cpup() to get_unaligned_bexx().
>  - Remove ndev process as current SPI device support single device only.
>  - Remove chn and chnend for single device support only.
>  - Change all of registers read/write function, remove parameter chn.
>  - Create new function for single write, burst write, delay, field write
>    in tasdevice_process_block().
> ---
>  sound/pci/hda/tas2781_spi_fwlib.c | 2252 +++++++++++++++++++++++++++++
>  1 file changed, 2252 insertions(+)
>  create mode 100644 sound/pci/hda/tas2781_spi_fwlib.c
> 
> diff --git a/sound/pci/hda/tas2781_spi_fwlib.c b/sound/pci/hda/tas2781_spi_fwlib.c
> new file mode 100644
> index 000000000000..f39e7ff5b09d
> --- /dev/null
> +++ b/sound/pci/hda/tas2781_spi_fwlib.c
> @@ -0,0 +1,2252 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// TAS2781 HDA SPI driver
> +//
> +// Copyright 2024 Texas Instruments, Inc.
> +//
> +// Author: Baojun Xu <baojun.xu@ti.com>
> +
> +#include <asm/unaligned.h>
> +#include <linux/crc8.h>
> +#include <linux/firmware.h>
> +#include <linux/init.h>
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <linux/types.h>
> +#include <sound/pcm_params.h>
> +#include <sound/soc.h>
> +#include <sound/tas2781-dsp.h>
> +#include <sound/tlv.h>
> +
> +#include "tas2781-spi.h"
> +
> +#define OFFSET_ERROR_BIT			BIT(31)
> +
> +#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_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_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
> +
> +struct tas_crc {
> +	unsigned char offset;
> +	unsigned char len;
> +};
> +
> +struct blktyp_devidx_map {
> +	unsigned char blktyp;
> +	unsigned char dev_idx;
> +};
> +
> +/* 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(sizeof(*cfg_info), GFP_KERNEL);
> +	if (!cfg_info) {
> +		*status = -ENOMEM;
> +		return NULL;
> +	}
> +
> +	if (tas_priv->rcabin.fw_hdr.binary_version_num >= 0x105) {
> +		if ((config_offset + 64) > config_size) {
> +			*status = -EINVAL;
> +			dev_err(tas_priv->dev, "add conf: Out of boundary\n");
> +			goto out;
> +		}
> +		config_offset += 64;
> +	}
> +
> +	if ((config_offset + 4) > 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 = kcalloc(cfg_info->nblocks,
> +		sizeof(*bk_da), GFP_KERNEL);
> +	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);
> +			goto out1;
> +		}
> +		bk_da[i] = kzalloc(sizeof(*bk_da[i]), GFP_KERNEL);
> +		if (!bk_da[i]) {
> +			*status = -ENOMEM;
> +			goto out1;
> +		}
> +
> +		bk_da[i]->dev_idx = config_data[config_offset];
> +		config_offset++;
> +
> +		bk_da[i]->block_type = config_data[config_offset];
> +		config_offset++;
> +
> +		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);
> +			goto out1;
> +		}
> +		/* 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;
> +			i++;
> +			goto out1;
> +		}
> +
> +		config_offset += bk_da[i]->block_size;
> +		cfg_info->real_nblocks += 1;
> +	}
> +
> +	return cfg_info;
> +out1:
> +	for (int j = 0; j < i; j++)
> +		kfree(bk_da[j]);
> +	kfree(bk_da);
> +out:
> +	kfree(cfg_info);
> +	return NULL;
> +}
> +
> +int tasdevice_spi_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;
> +	int offset = 0, ret = 0, i;
> +	unsigned char *buf;
> +
> +	rca = &(tas_priv->rcabin);
> +	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;
> +		return -EINVAL;
> +	}
> +	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;
> +		return -EINVAL;
> +	}
> +
> +	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;
> +		return -EINVAL;
> +	}
> +	offset += 4;
> +	fw_hdr->drv_fw_version = get_unaligned_be32(&buf[offset]);
> +	offset += 8;
> +	fw_hdr->plat_type = buf[offset++];
> +	fw_hdr->dev_family = buf[offset++];
> +	fw_hdr->reserve = buf[offset++];
> +	fw_hdr->ndev = buf[offset++];
> +	if (offset + TASDEVICE_DEVICE_SUM > fw_hdr->img_sz) {
> +		dev_err(tas_priv->dev, "rca_ready: Out of boundary!\n");
> +		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
> +		return -EINVAL;
> +	}
> +
> +	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 err %d - %d != %d!\n",
> +			fw_hdr->img_sz, total_config_sz, (int)offset);
> +		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
> +		return -EINVAL;
> +	}
> +
> +	cfg_info = kcalloc(fw_hdr->nconfig, sizeof(*cfg_info), GFP_KERNEL);
> +	if (!cfg_info) {
> +		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
> +		return -ENOMEM;
> +	}
> +	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;
> +			return ret;
> +		}
> +		offset += (int)fw_hdr->config_size[i];
> +	}
> +
> +	return ret;
> +}
> +
> +/* 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) {
> +		p = (struct blktyp_devidx_map *)ppc3_tas2781_mapping_table;
> +		n = ARRAY_SIZE(ppc3_tas2781_mapping_table);
> +	} else if (fw_fixed_hdr->ppcver >= PPC3_VERSION) {
> +		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__);
> +		return -EINVAL;
> +	}
> +
> +	/*
> +	 * 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++];
> +	block->pchksum = data[offset++];
> +	block->is_ychksum_present = data[offset++];
> +	block->ychksum = data[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__);
> +		return -EINVAL;
> +	}
> +	/* instead of kzalloc+memcpy */
> +	block->data = kmemdup(&data[offset], block->blk_size, GFP_KERNEL);
> +	if (!block->data)
> +		return -ENOMEM;
> +
> +	offset += block->blk_size;
> +
> +	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__);
> +		return -EINVAL;
> +	}
> +	img_data->nr_blk = get_unaligned_be32(&data[offset]);
> +	offset += 4;
> +
> +	img_data->dev_blks = kcalloc(img_data->nr_blk,
> +		sizeof(struct tasdev_blk), GFP_KERNEL);
> +	if (!img_data->dev_blks)
> +		return -ENOMEM;
> +
> +	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) {
> +			kfree(img_data->dev_blks);
> +			return -EINVAL;
> +		}
> +	}
> +
> +	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__);
> +			return -EINVAL;
> +		}
> +		/* skip 72 unused byts */
> +		offset += 72;
> +
> +		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
> +			fmw, offset);
> +		if (offset < 0)
> +			break;
> +	}
> +
> +	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__);
> +			return -EINVAL;
> +		}
> +		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)
> +			break;
> +	}
> +
> +	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_config *config;
> +	struct tasdevice_prog *program;
> +	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__);
> +		return -EINVAL;
> +	}
> +	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__);
> +		return -EINVAL;
> +	}
> +	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);
> +		return -EINVAL;
> +	}
> +	offset += 2;
> +
> +	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");
> +		return -EINVAL;
> +	}
> +
> +	tas_fmw->programs = kcalloc(tas_fmw->nr_programs,
> +		sizeof(*tas_fmw->programs), GFP_KERNEL);
> +	if (!tas_fmw->programs)
> +		return -ENOMEM;
> +
> +	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 = 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__);
> +		kfree(tas_fmw->programs);
> +		return -EINVAL;
> +	}
> +
> +	if (offset + 4 * max_confs > fmw->size) {
> +		dev_err(tas_priv->dev, "%s: mpConfigurations err\n", __func__);
> +		kfree(tas_fmw->programs);
> +		return -EINVAL;
> +	}
> +
> +	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
> +		sizeof(*tas_fmw->configs), GFP_KERNEL);
> +	if (!tas_fmw->configs) {
> +		kfree(tas_fmw->programs);
> +		return -ENOMEM;
> +	}
> +
> +	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);
> +
> +	return offset;
> +}
> +
> +static int tasdevice_single_byte_wr(void *context, unsigned char *data,
> +	int sublocksize)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	unsigned short len = get_unaligned_be16(&data[2]);
> +	int i, subblk_offset, rc;
> +
> +	subblk_offset = 4;
> +	if (subblk_offset + 4 * len > sublocksize) {
> +		dev_err(tas_priv->dev, "process_block: Out of boundary\n");
> +		return 0;
> +	}
> +
> +	for (i = 0; i < len; i++) {
> +		rc = tasdevice_spi_dev_write(tas_priv,
> +			TASDEVICE_REG(data[subblk_offset],
> +			data[subblk_offset + 1], data[subblk_offset + 2]),
> +			data[subblk_offset + 3]);
> +		if (rc < 0) {
> +			dev_err(tas_priv->dev,
> +				"process_block: single write error\n");
> +			subblk_offset |= OFFSET_ERROR_BIT;
> +		}
> +		subblk_offset += 4;
> +	}
> +
> +	return subblk_offset;
> +}
> +
> +static int tasdevice_burst_wr(void *context, unsigned char *data,
> +	int sublocksize)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	unsigned short len = get_unaligned_be16(&data[2]);
> +	int subblk_offset, rc;
> +
> +	subblk_offset = 4;
> +	if (subblk_offset + 4 + len > sublocksize) {
> +		dev_err(tas_priv->dev, "%s: BST Out of boundary\n", __func__);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +	if (len % 4) {
> +		dev_err(tas_priv->dev, "%s:Bst-len(%u)not div by 4\n",
> +			__func__, len);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +
> +	rc = tasdevice_spi_dev_bulk_write(tas_priv,
> +		TASDEVICE_REG(data[subblk_offset], data[subblk_offset + 1],
> +		data[subblk_offset + 2]), &(data[subblk_offset + 4]), len);
> +	if (rc < 0) {
> +		dev_err(tas_priv->dev, "%s: bulk_write error = %d\n",
> +			__func__, rc);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +	subblk_offset += (len + 4);
> +
> +	return subblk_offset;
> +}
> +
> +static int tasdevice_delay(void *context, unsigned char *data,
> +	int sublocksize)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	unsigned int sleep_time, subblk_offset = 2;
> +
> +	if (subblk_offset + 2 > sublocksize) {
> +		dev_err(tas_priv->dev, "%s: delay Out of boundary\n",
> +			__func__);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +	sleep_time = get_unaligned_be16(&data[2]) * 1000;
> +	fsleep(sleep_time);
> +	subblk_offset += 2;
> +
> +	return subblk_offset;
> +}
> +
> +static int tasdevice_field_wr(void *context, unsigned char *data,
> +	int sublocksize)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	int rc, subblk_offset = 2;
> +
> +	if (subblk_offset + 6 > sublocksize) {
> +		dev_err(tas_priv->dev, "%s: bit write Out of boundary\n",
> +			__func__);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +	rc = tasdevice_spi_dev_update_bits(tas_priv,
> +		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) {
> +		dev_err(tas_priv->dev, "%s: update_bits error = %d\n",
> +			__func__, rc);
> +		subblk_offset |= OFFSET_ERROR_BIT;
> +	}
> +	subblk_offset += 6;
> +
> +	return subblk_offset;
> +}
> +
> +static int tasdevice_process_block(void *context, unsigned char *data,
> +	unsigned char dev_idx, int sublocksize)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	int blktyp = dev_idx & 0xC0, subblk_offset;
> +	unsigned char subblk_typ = data[1];
> +
> +	if (tas_priv->is_loading == false)
> +		return sublocksize;
> +
> +	switch (subblk_typ) {
> +	case TASDEVICE_CMD_SING_W:
> +		subblk_offset = tasdevice_single_byte_wr(tas_priv, data,
> +			sublocksize);
> +		break;
> +	case TASDEVICE_CMD_BURST:
> +		subblk_offset = tasdevice_burst_wr(tas_priv, data,
> +			sublocksize);
> +		break;
> +	case TASDEVICE_CMD_DELAY:
> +		subblk_offset = tasdevice_delay(tas_priv, data, sublocksize);
> +		break;
> +	case TASDEVICE_CMD_FIELD_W:
> +		subblk_offset = tasdevice_field_wr(tas_priv, data,
> +			sublocksize);
> +		break;
> +	default:
> +		subblk_offset = 2;
> +		break;
> +	}
> +	if (((subblk_offset & OFFSET_ERROR_BIT) != 0) && blktyp != 0) {
> +		if (blktyp == 0x80) {
> +			tas_priv->cur_prog = -1;
> +			tas_priv->cur_conf = -1;
> +		} else
> +			tas_priv->cur_conf = -1;
> +	}
> +	subblk_offset &= ~OFFSET_ERROR_BIT;
> +
> +	return subblk_offset;
> +}
> +
> +void tasdevice_spi_select_cfg_blk(void *pContext, int conf_no,
> +	unsigned char block_type)
> +{
> +	struct tasdevice_priv *tas_priv = pContext;
> +	struct tasdevice_rca *rca = &(tas_priv->rcabin);
> +	struct tasdevice_config_info **cfg_info = rca->cfg_info;
> +	struct tasdev_blk_data **blk_data;
> +	unsigned int j, k;
> +
> +	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 < 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 < blk_data[j]->n_subblks; k++) {
> +			tas_priv->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);
> +	}
> +}
> +
> +static int tasdevice_load_block_kernel(
> +	struct tasdevice_priv *tasdevice, struct tasdev_blk *block)
> +{
> +	const unsigned int blk_size = block->blk_size;
> +	unsigned char *data = block->data;
> +	unsigned int i, length;
> +
> +	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 += 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__);
> +		return -EINVAL;
> +	}
> +
> +	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__);
> +		return -EINVAL;
> +	}
> +	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);
> +		return -EINVAL;
> +	}
> +	offset += 4;
> +	fw_hdr->ndev = 1;
> +
> +	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);
> +
> +	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__);
> +		return -EINVAL;
> +	}
> +	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");
> +			return -EINVAL;
> +		}
> +		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);
> +		return -EINVAL;
> +	}
> +	/* instead of kzalloc+memcpy */
> +	block->data = kmemdup(&data[offset], n, GFP_KERNEL);
> +	if (!block->data)
> +		return -ENOMEM;
> +
> +	offset += n;
> +
> +	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, n;
> +
> +	if (offset + 64 > fmw->size) {
> +		dev_err(tas_fmw->dev, "%s: Name error\n", __func__);
> +		return -EINVAL;
> +	}
> +	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__);
> +		return -EINVAL;
> +	}
> +	offset += n;
> +	img_data->nr_blk = get_unaligned_be16(&data[offset]);
> +	offset += 2;
> +
> +	img_data->dev_blks = kcalloc(img_data->nr_blk,
> +		sizeof(*img_data->dev_blks), GFP_KERNEL);
> +	if (!img_data->dev_blks)
> +		return -ENOMEM;
> +
> +	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)
> +			return -EINVAL;
> +	}
> +
> +	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__);
> +		return -EINVAL;
> +	}
> +	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__);
> +		return offset;
> +	}
> +
> +	tas_fmw->programs =
> +		kcalloc(tas_fmw->nr_programs, sizeof(*tas_fmw->programs),
> +			GFP_KERNEL);
> +	if (!tas_fmw->programs)
> +		return -ENOMEM;
> +
> +	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__);
> +			return -EINVAL;
> +		}
> +		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");
> +			return -EINVAL;
> +		}
> +
> +		offset += n;
> +
> +		offset = fw_parse_data(tas_fmw, &(program->dev_data), fmw,
> +			offset);
> +		if (offset < 0)
> +			return offset;
> +	}
> +
> +	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, n;
> +
> +	if (offset + 2 > fmw->size) {
> +		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
> +		return -EINVAL;
> +	}
> +	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 */
> +		return offset;
> +	}
> +	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
> +			sizeof(*tas_fmw->configs), GFP_KERNEL);
> +	if (!tas_fmw->configs)
> +		return -ENOMEM;
> +	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");
> +			return -EINVAL;
> +		}
> +		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");
> +			return -EINVAL;
> +		}
> +		offset += n;
> +		offset = fw_parse_data(tas_fmw, &(config->dev_data),
> +			fmw, offset);
> +		if (offset < 0)
> +			break;
> +	}
> +
> +	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);
> +	else if (book == TAS2781_YRAM_BOOK2 && page == TAS2781_YRAM5_PAGE)
> +		in = check_inpage_yram_rg(cd, reg, len);
> +
> +	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)
> +		in = check_inblock_yram(cd, book, page, reg, len);
> +
> +	return in;
> +}
> +
> +static int tasdev_multibytes_chksum(struct tasdevice_priv *tasdevice,
> +	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, 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_spi_dev_bulk_read(tasdevice,
> +		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 char book, unsigned char page,
> +	unsigned char reg, unsigned char val)
> +{
> +	struct tas_crc crc_data;
> +	unsigned int nData1;
> +	int ret = 0;
> +	bool in;
> +
> +	/* DSP swap command, pass */
> +	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)))
> +		return 0;
> +
> +	in = check_yram(&crc_data, book, page, reg, 1);
> +	if (!in)
> +		return 0;
> +	ret = tasdevice_spi_dev_read(tasdevice,
> +		TASDEVICE_REG(book, page, reg), &nData1);
> +	if (ret < 0)
> +		return ret;
> +
> +	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->err_code |= ERROR_YRAM_CRCCHK;
> +		return -EAGAIN;
> +	}
> +
> +	ret = crc8(tasdevice->crc8_lkp_tbl, &val, 1, 0);
> +
> +	return ret;
> +}
> +
> +static void set_err_prg_cfg(unsigned int type, struct tasdevice_priv *p)
> +{
> +	if ((type == MAIN_ALL_DEVICES) || (type == MAIN_DEVICE_A) ||
> +	    (type == MAIN_DEVICE_B) || (type == MAIN_DEVICE_C) ||
> +	    (type == MAIN_DEVICE_D))
> +		p->cur_prog = -1;
> +	else
> +		p->cur_conf = -1;
> +}
> +
> +static int tasdev_bytes_chksum(struct tasdevice_priv *tas_priv,
> +	struct tasdev_blk *block, 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, book, page, reg,
> +			len);
> +	else
> +		ret = do_singlereg_checksum(tas_priv, book, page, reg, val);
> +
> +	if (ret > 0) {
> +		*crc_chksum += 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);
> +
> +end:
> +	return ret;
> +}
> +
> +static int tasdev_multibytes_wr(struct tasdevice_priv *tas_priv,
> +	struct tasdev_blk *block, 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_spi_dev_bulk_write(tas_priv,
> +			TASDEVICE_REG(book, page, reg), data + 3, len);
> +		if (ret < 0)
> +			return ret;
> +		if (block->is_ychksum_present)
> +			ret = tasdev_bytes_chksum(tas_priv, block,
> +				book, page, reg, len, 0, crc_chksum);
> +	} else {
> +		ret = tasdevice_spi_dev_write(tas_priv,
> +			TASDEVICE_REG(book, page, reg), data[3]);
> +		if (ret < 0)
> +			return ret;
> +		if (block->is_ychksum_present)
> +			ret = tasdev_bytes_chksum(tas_priv, block, 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;
> +	}
> +
> +	return ret;
> +}
> +
> +static int tasdev_block_chksum(struct tasdevice_priv *tas_priv,
> +	struct tasdev_blk *block)
> +{
> +	unsigned int nr_value;
> +	int ret;
> +
> +	ret = tasdevice_spi_dev_read(tas_priv, TASDEVICE_Checksum, &nr_value);
> +	if (ret < 0) {
> +		dev_err(tas_priv->dev, "%s: read error %d.\n", __func__, ret);
> +		set_err_prg_cfg(block->type, tas_priv);
> +		return ret;
> +	}
> +
> +	if ((nr_value & 0xff) != block->pchksum) {
> +		dev_err(tas_priv->dev, "%s: PChkSum err %d ", __func__, ret);
> +		dev_err(tas_priv->dev, "PChkSum = 0x%x, Reg = 0x%x\n",
> +			block->pchksum, (nr_value & 0xff));
> +		tas_priv->err_code |= ERROR_PRAM_CRCCHK;
> +		ret = -EAGAIN;
> +		block->nr_retry--;
> +
> +		if (block->nr_retry <= 0)
> +			set_err_prg_cfg(block->type, tas_priv);
> +	} else {
> +		tas_priv->err_code &= ~ERROR_PRAM_CRCCHK;
> +	}
> +
> +	return ret;
> +}
> +
> +static int tasdev_load_blk(struct tasdevice_priv *tas_priv,
> +	struct tasdev_blk *block)
> +{
> +	unsigned int sleep_time, len, nr_cmds;
> +	unsigned char offset, book, page, val;
> +	unsigned char *data = block->data;
> +	unsigned char crc_chksum = 0;
> +	int ret = 0;
> +
> +	while (block->nr_retry > 0) {
> +		if (block->is_pchksum_present) {
> +			ret = tasdevice_spi_dev_write(tas_priv,
> +				TASDEVICE_Checksum, 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_spi_dev_write(tas_priv,
> +					TASDEVICE_REG(book, page, offset),
> +					val);
> +				if (ret < 0)
> +					break;
> +				if (block->is_ychksum_present) {
> +					ret = tasdev_bytes_chksum(tas_priv,
> +						block, 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;
> +				fsleep(sleep_time);
> +				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, 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);
> +			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->err_code &=
> +				~ERROR_YRAM_CRCCHK;
> +			ret = 0;
> +		}
> +		/* skip current blk */
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +static int tasdevice_load_block(struct tasdevice_priv *tas_priv,
> +	struct tasdev_blk *block)
> +{
> +	int ret = 0;
> +
> +	block->nr_retry = 6;
> +	if (tas_priv->is_loading == false)
> +		return 0;
> +	ret = tasdev_load_blk(tas_priv, block);
> +	if (ret < 0)
> +		dev_err(tas_priv->dev, "Blk (%d) load error\n", block->type);
> +
> +	return ret;
> +}
> +
> +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) {
> +			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;
> +		} 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);
> +				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 load_calib_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 = tasdevice_load_block(tas_priv, block);
> +		if (ret < 0)
> +			break;
> +	}
> +
> +	return ret;
> +}
> +
> +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)
> +		return offset;
> +	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;
> +	}
> +
> +	return offset;
> +}
> +
> +/*
> + * 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__);
> +		return -EINVAL;
> +	}
> +	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);
> +		return offset;
> +	}
> +
> +	tas_fmw->calibrations = kcalloc(tas_fmw->nr_calibrations,
> +		sizeof(*tas_fmw->calibrations), GFP_KERNEL);
> +	if (!tas_fmw->calibrations)
> +		return -ENOMEM;
> +	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
> +		if (offset + 64 > fmw->size) {
> +			dev_err(tas_priv->dev, "Calibrations error\n");
> +			return -EINVAL;
> +		}
> +		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");
> +			return -EINVAL;
> +		}
> +		offset += n;
> +
> +		offset = fw_parse_data(tas_fmw, &(calibration->dev_data), fmw,
> +			offset);
> +		if (offset < 0)
> +			return offset;
> +	}
> +
> +	return offset;
> +}
> +
> +int tas2781_spi_load_calibration(void *context, char *file_name,
> +	unsigned short i)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	const struct firmware *fw_entry;
> +	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 = tas_priv->cali_data_fmw = kzalloc(sizeof(*tas_fmw),
> +		GFP_KERNEL);
> +	if (!tas_priv->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:
> +	if (fw_entry)
> +		release_firmware(fw_entry);
> +
> +	return ret;
> +}
> +
> +static int tasdevice_dspfw_ready(const struct firmware *fmw, void *context)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr;
> +	struct tasdevice_fw *tas_fmw;
> +	int offset = 0, ret = 0;
> +
> +	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(sizeof(*tas_priv->fmw), GFP_KERNEL);
> +	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:
> +		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)
> +		ret = offset;
> +
> +	return ret;
> +}
> +
> +int tasdevice_spi_dsp_parser(void *context)
> +{
> +	struct tasdevice_priv *tas_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);
> +		return ret;
> +	}
> +
> +	ret = tasdevice_dspfw_ready(fw_entry, tas_priv);
> +	release_firmware(fw_entry);
> +	fw_entry = NULL;
> +
> +	return ret;
> +}
> +
> +static void tasdev_dsp_prog_blk_remove(struct tasdevice_prog *prog)
> +{
> +	struct tasdevice_data *tas_dt;
> +	struct tasdev_blk *blk;
> +	unsigned int i;
> +
> +	if (!prog)
> +		return;
> +
> +	tas_dt = &(prog->dev_data);
> +
> +	if (!tas_dt->dev_blks)
> +		return;
> +
> +	for (i = 0; i < tas_dt->nr_blk; i++) {
> +		blk = &(tas_dt->dev_blks[i]);
> +		kfree(blk->data);
> +	}
> +	kfree(tas_dt->dev_blks);
> +}
> +
> +static void tasdev_dsp_prog_remove(struct tasdevice_prog *prog,
> +	unsigned short nr)
> +{
> +	int i;
> +
> +	for (i = 0; i < nr; i++)
> +		tasdev_dsp_prog_blk_remove(&prog[i]);
> +	kfree(prog);
> +}
> +
> +static void tasdev_dsp_cfg_blk_remove(struct tasdevice_config *cfg)
> +{
> +	struct tasdevice_data *tas_dt;
> +	struct tasdev_blk *blk;
> +	unsigned int i;
> +
> +	if (cfg) {
> +		tas_dt = &(cfg->dev_data);
> +
> +		if (!tas_dt->dev_blks)
> +			return;
> +
> +		for (i = 0; i < tas_dt->nr_blk; i++) {
> +			blk = &(tas_dt->dev_blks[i]);
> +			kfree(blk->data);
> +		}
> +		kfree(tas_dt->dev_blks);
> +	}
> +}
> +
> +static void tasdev_dsp_cfg_remove(struct tasdevice_config *config,
> +	unsigned short nr)
> +{
> +	int i;
> +
> +	for (i = 0; i < nr; i++)
> +		tasdev_dsp_cfg_blk_remove(&config[i]);
> +	kfree(config);
> +}
> +
> +void tasdevice_spi_dsp_remove(void *context)
> +{
> +	struct tasdevice_priv *tas_dev = context;
> +
> +	if (!tas_dev->fmw)
> +		return;
> +
> +	if (tas_dev->fmw->programs)
> +		tasdev_dsp_prog_remove(tas_dev->fmw->programs,
> +			tas_dev->fmw->nr_programs);
> +	if (tas_dev->fmw->configs)
> +		tasdev_dsp_cfg_remove(tas_dev->fmw->configs,
> +			tas_dev->fmw->nr_configurations);
> +	kfree(tas_dev->fmw);
> +	tas_dev->fmw = NULL;
> +}
> +
> +static void tas2781_clear_calfirmware(struct tasdevice_fw *tas_fmw)
> +{
> +	struct tasdevice_calibration *calibration;
> +	struct tasdev_blk *block;
> +	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;
> +
> +		if (!calibration->dev_data.dev_blks)
> +			continue;
> +
> +		for (blks = 0; blks < calibration->dev_data.nr_blk; blks++) {
> +			block = &(calibration->dev_data.dev_blks[blks]);
> +			if (!block)
> +				continue;
> +			kfree(block->data);
> +		}
> +		kfree(calibration->dev_data.dev_blks);
> +	}
> +	kfree(tas_fmw->calibrations);
> +out:
> +	kfree(tas_fmw);
> +}
> +
> +void tasdevice_spi_calbin_remove(void *context)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +
> +	if (tas_priv->cali_data_fmw) {
> +		tas2781_clear_calfirmware(tas_priv->cali_data_fmw);
> +		tas_priv->cali_data_fmw = NULL;
> +	}
> +}
> +
> +void tasdevice_spi_config_info_remove(void *context)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	struct tasdevice_rca *rca = &(tas_priv->rcabin);
> +	struct tasdevice_config_info **ci = rca->cfg_info;
> +	unsigned 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 < 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);
> +}
> +
> +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;
> +}
> +
> +int tasdevice_spi_select_tuningprm_cfg(void *context, int prm_no,
> +	int cfg_no, int rca_conf_no)
> +{
> +	struct tasdevice_priv *tas_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;
> +
> +	if (!tas_fmw) {
> +		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
> +		return 0;
> +	}
> +
> +	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);
> +		return 0;
> +	}
> +
> +	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);
> +		return 0;
> +	}
> +
> +	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);
> +		return 0;
> +	}
> +
> +	if (prm_no >= 0	&&
> +	   (tas_priv->cur_prog != prm_no ||
> +	    tas_priv->force_fwload_status)) {
> +		tas_priv->cur_conf = -1;
> +		tas_priv->is_loading = true;
> +		prog_status++;
> +	}
> +
> +	if (prog_status) {
> +		program = &(tas_fmw->programs[prm_no]);
> +		tasdevice_load_data(tas_priv, &(program->dev_data));
> +		if (tas_priv->is_loaderr == false &&
> +		    tas_priv->is_loading == true) {
> +			struct tasdevice_fw *cal_fmw =
> +				tas_priv->cali_data_fmw;
> +
> +			if (cal_fmw) {
> +				struct tasdevice_calibration
> +					*cal = cal_fmw->calibrations;
> +
> +				if (cal)
> +					load_calib_data(tas_priv,
> +						&(cal->dev_data));
> +			}
> +			tas_priv->cur_prog = prm_no;
> +		}
> +
> +	}
> +
> +	if (cfg_no &&
> +	   (cfg_no != tas_priv->cur_conf) &&
> +	   (tas_priv->is_loaderr == false)) {
> +		status++;
> +		tas_priv->is_loading = true;
> +	} else {
> +		tas_priv->is_loading = false;
> +	}
> +
> +	if (status) {
> +		conf = &(tas_fmw->configs[cfg_no]);
> +		status = 0;
> +		tasdevice_load_data(tas_priv, &(conf->dev_data));
> +		if (tas_priv->is_loaderr == true) {
> +			status |= 1 << 4;
> +		} else if (tas_priv->is_loaderr == false &&
> +			   tas_priv->is_loading == true) {
> +			tas_priv->cur_conf = cfg_no;
> +		}
> +	} else {
> +		dev_dbg(tas_priv->dev, "%s: Unneeded loading dsp conf %d\n",
> +			__func__, cfg_no);
> +	}
> +
> +	return prog_status;
> +}
> +
> +int tasdevice_spi_prmg_load(void *context, int prm_no)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
> +	struct tasdevice_prog *program;
> +	int prog_status = 0;
> +
> +	if (!tas_fmw) {
> +		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
> +		return 0;
> +	}
> +
> +	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);
> +		return 0;
> +	}
> +
> +	if (prm_no >= 0 && tas_priv->cur_prog != prm_no) {
> +		tas_priv->cur_conf = -1;
> +		tas_priv->is_loading = true;
> +		prog_status++;
> +	}
> +	if (prog_status) {
> +		program = &(tas_fmw->programs[prm_no]);
> +		tasdevice_load_data(tas_priv, &(program->dev_data));
> +		if ((tas_priv->is_loaderr == false) &&
> +		    (tas_priv->is_loading == true))
> +			tas_priv->cur_prog = prm_no;
> +	}
> +
> +	return prog_status;
> +}
> +
> +int tasdevice_spi_prmg_calibdata_load(void *context, int prm_no)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
> +	struct tasdevice_prog *program;
> +	int prog_status = 0;
> +
> +	if (!tas_fmw) {
> +		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
> +		return 0;
> +	}
> +
> +	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);
> +		return 0;
> +	}
> +
> +	if (prm_no >= 0 && tas_priv->cur_prog != prm_no) {
> +		tas_priv->cur_conf = -1;
> +		tas_priv->is_loading = true;
> +		prog_status++;
> +	}
> +	tas_priv->is_loaderr = false;
> +
> +	if (prog_status) {
> +		program = &(tas_fmw->programs[prm_no]);
> +		tasdevice_load_data(tas_priv, &(program->dev_data));
> +		if (tas_priv->is_loaderr == false &&
> +		    tas_priv->is_loading == true) {
> +			struct tasdevice_fw *cal_fmw =
> +				tas_priv->cali_data_fmw;
> +
> +			if (cal_fmw) {
> +				struct tasdevice_calibration *cal =
> +					cal_fmw->calibrations;
> +
> +				if (cal)
> +					load_calib_data(tas_priv,
> +						&(cal->dev_data));
> +			}
> +			tas_priv->cur_prog = prm_no;
> +		}
> +
> +	}
> +
> +	return prog_status;
> +}
> +
> +void tasdevice_spi_tuning_switch(void *context, int state)
> +{
> +	struct tasdevice_priv *tas_priv = context;
> +	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
> +	int profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
> +
> +	if (tas_priv->fw_state == TASDEVICE_DSP_FW_FAIL) {
> +		dev_err(tas_priv->dev, "DSP bin file not loaded\n");
> +		return;
> +	}
> +
> +	if (state == 0) {
> +		if (tas_priv->cur_prog < tas_fmw->nr_programs) {
> +			/* dsp mode or tuning mode */
> +			profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
> +			tasdevice_spi_select_tuningprm_cfg(tas_priv,
> +				tas_priv->cur_prog, tas_priv->cur_conf,
> +				profile_cfg_id);
> +		}
> +
> +		tasdevice_spi_select_cfg_blk(tas_priv, profile_cfg_id,
> +			TASDEVICE_BIN_BLK_PRE_POWER_UP);
> +	} else {
> +		tasdevice_spi_select_cfg_blk(tas_priv, profile_cfg_id,
> +			TASDEVICE_BIN_BLK_PRE_SHUTDOWN);
> +	}
> +}
> +
> +MODULE_DESCRIPTION("Texas Firmware Support");
> +MODULE_AUTHOR("Baojun Xu, TI, <baojun.xu@ti.com>");
> +MODULE_LICENSE("GPL");
> -- 
> 2.40.1
>