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Message-ID: <0dfd9d02-30f2-8245-430c-0d4381470606@wanadoo.fr>
Date: Fri, 24 Mar 2023 18:07:32 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Shenghao Ding <13916275206@....com>, broonie@...nel.org,
lgirdwood@...il.com, perex@...ex.cz,
pierre-louis.bossart@...ux.intel.com
Cc: kevin-lu@...com, shenghao-ding@...com, alsa-devel@...a-project.org,
linux-kernel@...r.kernel.org, x1077012@...com, peeyush@...com,
navada@...com
Subject: Re: [PATCH v6] ASoC: tas2781: Add tas2781 driver
Le 24/03/2023 à 12:07, Shenghao Ding a écrit :
> Create tas2781 driver.
>
> Signed-off-by: Shenghao Ding <13916275206@....com>
>
> ---
> Changes in v6:
> - use usleep_range as sleep functions.
> - correct the typo
> - -EINVAL instead of -1
> - fix very odd indentation in fw_parse_data_kernel
> | Reported-by: kernel test robot <lkp@...el.com>
> | Link: https://lore.kernel.org/oe-kbuild-all/202303220800.Pz99eL6X-lkp@intel.com/
> - tasdevice_i2c_probe: variable 'ret' is used uninitialized whenever 'if' condition is false
> - remove odd mutex lock/unlock
> - introduce the reverse xmas tree style for declaration list
> Changes to be committed:
> modified: sound/soc/codecs/Kconfig
> modified: sound/soc/codecs/Makefile
> new file: sound/soc/codecs/tas2781-dsp.c
> new file: sound/soc/codecs/tas2781-dsp.h
> new file: sound/soc/codecs/tas2781-i2c.c
> new file: sound/soc/codecs/tas2781.h
Hi,
mostly some nits below, but maybe a few real issues also.
Just my 2c.
CJ
> ---
> sound/soc/codecs/Kconfig | 12 +
> sound/soc/codecs/Makefile | 2 +
> sound/soc/codecs/tas2781-dsp.c | 2242 ++++++++++++++++++++++++++++++++
> sound/soc/codecs/tas2781-dsp.h | 180 +++
> sound/soc/codecs/tas2781-i2c.c | 1621 +++++++++++++++++++++++
> sound/soc/codecs/tas2781.h | 160 +++
> 6 files changed, 4217 insertions(+)
> create mode 100644 sound/soc/codecs/tas2781-dsp.c
> create mode 100644 sound/soc/codecs/tas2781-dsp.h
> create mode 100644 sound/soc/codecs/tas2781-i2c.c
> create mode 100644 sound/soc/codecs/tas2781.h
>
> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
> index 07747565c3b5..e1afe1ced5d7 100644
> --- a/sound/soc/codecs/Kconfig
> +++ b/sound/soc/codecs/Kconfig
> @@ -229,6 +229,7 @@ config SND_SOC_ALL_CODECS
> imply SND_SOC_TAS2764
> imply SND_SOC_TAS2770
> imply SND_SOC_TAS2780
> + imply SND_SOC_TAS2781
> imply SND_SOC_TAS5086
> imply SND_SOC_TAS571X
> imply SND_SOC_TAS5720
> @@ -1637,6 +1638,17 @@ config SND_SOC_TAS2780
> Enable support for Texas Instruments TAS2780 high-efficiency
> digital input mono Class-D audio power amplifiers.
>
> +config SND_SOC_TAS2781
> + tristate "Texas Instruments TAS2781 speaker amplifier"
> + depends on I2C
> + select REGMAP_I2C
> + select CRC8
> + help
> + Enable support for Texas Instruments TAS2781 Smart Amplifier
> + Digital input mono Class-D and DSP-inside audio power amplifiers.
> + Note the TAS2781 driver implements a flexible and configurable
> + algo coff setting, for one, two, even multiple TAS2781 chips.
> +
> config SND_SOC_TAS5086
> tristate "Texas Instruments TAS5086 speaker amplifier"
> depends on I2C
> diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
> index f1ca18f7946c..5559b9e9cc17 100644
> --- a/sound/soc/codecs/Makefile
> +++ b/sound/soc/codecs/Makefile
> @@ -262,6 +262,7 @@ snd-soc-tas5805m-objs := tas5805m.o
> snd-soc-tas6424-objs := tas6424.o
> snd-soc-tda7419-objs := tda7419.o
> snd-soc-tas2770-objs := tas2770.o
> +snd-soc-tas2781-objs := tas2781-i2c.o tas2781-dsp.o
> snd-soc-tfa9879-objs := tfa9879.o
> snd-soc-tfa989x-objs := tfa989x.o
> snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o
> @@ -619,6 +620,7 @@ obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o
> obj-$(CONFIG_SND_SOC_TAS2562) += snd-soc-tas2562.o
> obj-$(CONFIG_SND_SOC_TAS2764) += snd-soc-tas2764.o
> obj-$(CONFIG_SND_SOC_TAS2780) += snd-soc-tas2780.o
> +obj-$(CONFIG_SND_SOC_TAS2781) += snd-soc-tas2781.o
> obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
> obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o
> obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o
> diff --git a/sound/soc/codecs/tas2781-dsp.c b/sound/soc/codecs/tas2781-dsp.c
> new file mode 100644
> index 000000000000..a0f5e958d7fe
> --- /dev/null
> +++ b/sound/soc/codecs/tas2781-dsp.c
> @@ -0,0 +1,2242 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
> +//
> +// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
> +// https://www.ti.com
> +//
> +// The TAS2781 driver implements a flexible and configurable
> +// algo coefficient setting for one, two, or even multiple
> +// TAS2781 chips.
> +//
> +// Author: Shenghao Ding <shenghao-ding@...com>
> +// Author: Kevin Lu <kevin-lu@...com>
> +//
> +
> +#include <linux/crc8.h>
> +#include <linux/firmware.h>
> +#include <linux/fs.h>
> +#include <linux/i2c.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <linux/string.h>
> +
> +#include "tas2781.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_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 8
> +#define TAS2781_YRAM5_END_REG 27
> +
> +#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
> +
> +struct tas_crc {
> + unsigned char offset;
> + unsigned char len;
> +};
> +
> +const char deviceNumber[TASDEVICE_DSP_TAS_MAX_DEVICE] = {
> + 1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4
> +};
> +
> +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 + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->type = SMS_HTONL(data[offset],
> + data[offset + 1], data[offset + 2],
> + data[offset + 3]);
> + offset += 4;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: PChkSumPresent error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->is_pchksum_present = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: mnPChkSum error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->pchksum = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: YChkSumPresent error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->is_ychksum_present = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: mnYChkSum error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->ychksum = data[offset];
> + offset++;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: blk_size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->blk_size = SMS_HTONL(data[offset], data[offset + 1],
> + data[offset + 2], data[offset + 3]);
> + offset += 4;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: nSublocks error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->nr_subblocks = SMS_HTONL(data[offset], data[offset + 1],
> + data[offset + 2], data[offset + 3]);
> + offset += 4;
> +
> + block->data = kzalloc(block->blk_size, GFP_KERNEL);
> + if (!block->data) {
> + offset = -EINVAL;
> + goto out;
> + }
> + memcpy(block->data, &data[offset], block->blk_size);
> + 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 nr_block;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + img_data->nr_blk = SMS_HTONL(data[offset],
> + data[offset + 1], data[offset + 2], data[offset + 3]);
> + offset += 4;
> +
> + img_data->dev_blks =
> + kcalloc(img_data->nr_blk, sizeof(struct tasdev_blk),
> + GFP_KERNEL);
> + if (!img_data->dev_blks) {
> + offset = -ENOMEM;
> + goto out;
> + }
> +
> + for (nr_block = 0; nr_block < img_data->nr_blk; nr_block++) {
> + blk = &(img_data->dev_blks[nr_block]);
> + offset = fw_parse_block_data_kernel(tas_fmw, blk, fmw, offset);
> + if (offset < 0) {
> + offset = -EINVAL;
> + break;
> + }
> + }
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_program_data_kernel(
> + struct tasdevice_priv *tas_dev, struct tasdevice_fw *tas_fmw,
> + const struct firmware *fmw, int offset)
> +{
> + struct tasdevice_prog *program;
> + unsigned int nr_program;
> +
> + for (nr_program = 0; nr_program < tas_fmw->nr_programs; nr_program++) {
> + program = &(tas_fmw->programs[nr_program]);
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpName error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 64;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: AppMode error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "PDMI2SMode err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: ISnsPD error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: VSnsPD error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + //skip 3-byte reserved
> + offset += 3;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PowerLDG err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + 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_dev,
> + struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
> +{
> + const unsigned char *data = fmw->data;
> + struct tasdevice_config *config;
> + unsigned int nr_conf;
> +
> + for (nr_conf = 0; nr_conf < tas_fmw->nr_configurations; nr_conf++) {
> + config = &(tas_fmw->configs[nr_conf]);
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpName error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + memcpy(config->name, &data[offset], 64);
> + offset += 64;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "orientation err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Devices error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 1;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Program error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "SamplingRate err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PLLSrc error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: FsRate error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PLLRate err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + offset = fw_parse_data_kernel(tas_fmw,
> + &(config->dev_data), fmw, offset);
> + if (offset < 0)
> + goto out;
> + }
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_variable_header_kernel(
> + struct tasdevice_priv *tas_dev, const struct firmware *fmw, int offset)
> +{
> + struct tasdevice_fw *tas_fmw = tas_dev->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 int nr_program, nr_configs;
> + unsigned short max_confs;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device_family = SMS_HTONS(buf[offset], buf[offset + 1]);
> + if (fw_hdr->device_family != 0) {
> + dev_err(tas_dev->dev, "%s:not TAS device\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Device error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device = SMS_HTONS(buf[offset], buf[offset + 1]);
> + if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
> + fw_hdr->device == 6) {
> + dev_err(tas_dev->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_dev->ndev) {
> + dev_err(tas_dev->dev,
> + "%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
> + __func__, fw_hdr->ndev, tas_dev->ndev);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnPrograms error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + tas_fmw->nr_programs = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> +
> + if (tas_fmw->nr_programs == 0 || tas_fmw->nr_programs >
> + TASDEVICE_MAXPROGRAM_NUM_KERNEL) {
> + dev_err(tas_dev->dev, "%s: mnPrograms is invalid\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + if (offset + 4 * TASDEVICE_MAXPROGRAM_NUM_KERNEL > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpPrograms error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + tas_fmw->programs = kcalloc(tas_fmw->nr_programs,
> + sizeof(struct tasdevice_prog), GFP_KERNEL);
> + if (!tas_fmw->programs) {
> + offset = -ENOMEM;
> + goto out;
> + }
> +
> + for (nr_program = 0; nr_program < tas_fmw->nr_programs; nr_program++) {
> + program = &(tas_fmw->programs[nr_program]);
> + program->prog_size = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + }
> +
> + /* Skip the unused prog_size
> + * nr_program == tas_fmw->nr_programs, nr_program is shorter than
> + * tas_fmw->nr_programs, avoid more than 80 chars
> + */
> + offset += (4 * (TASDEVICE_MAXPROGRAM_NUM_KERNEL - nr_program));
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Configurations error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + tas_fmw->nr_configurations = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> +
> + /* The max of conf for more than equal to 4 pcs of devices is different
> + * from the one less than 4 pcs 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_dev->dev, "%s: Conf is invalid\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + if (offset + 4 * max_confs > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpConfigurations err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
> + sizeof(struct tasdevice_config), GFP_KERNEL);
> + if (!tas_fmw->configs) {
> + offset = -ENOMEM;
> + goto out;
> + }
I've *not* checked in details, but in case of error the kcalloc() seems
to me leaking in this function. (see the other kcalloc above)
> +
> + for (nr_configs = 0; nr_configs < tas_fmw->nr_programs;
> + nr_configs++) {
> + config =
> + &(tas_fmw->configs[nr_configs]);
> + config->cfg_size = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + }
> +
> + /* Skip the unused configs */
> + offset += 4 * (max_confs - nr_configs);
> +out:
> + return offset;
> +}
> +
> +static int tasdevice_load_block_kernel(
> + struct tasdevice_priv *tasdevice, struct tasdev_blk *block)
> +{
> + struct tasdevice_dspfw_hdr *fw_hdr = &(tasdevice->fmw->fw_hdr);
> + struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
> + const unsigned int blk_size = block->blk_size;
> + unsigned int i, length;
> + unsigned char *data = block->data;
> + unsigned char dev_idx = 0;
> +
> + if (fw_fixed_hdr->ppcver >= PPC3_VERSION) {
> + switch (block->type) {
> + case MAIN_ALL_DEVICES_1X:
> + dev_idx = 0x80;
> + break;
> + case MAIN_DEVICE_A_1X:
> + dev_idx = 0x81;
> + break;
> + case COEFF_DEVICE_A_1X:
> + case PRE_DEVICE_A_1X:
> + dev_idx = 0xC1;
> + break;
> + case MAIN_DEVICE_B_1X:
> + dev_idx = 0x82;
> + break;
> + case COEFF_DEVICE_B_1X:
> + case PRE_DEVICE_B_1X:
> + dev_idx = 0xC2;
> + break;
> + case MAIN_DEVICE_C_1X:
> + dev_idx = 0x83;
> + break;
> + case COEFF_DEVICE_C_1X:
> + case PRE_DEVICE_C_1X:
> + dev_idx = 0xC3;
> + break;
> + case MAIN_DEVICE_D_1X:
> + dev_idx = 0x84;
> + break;
> + case COEFF_DEVICE_D_1X:
> + case PRE_DEVICE_D_1X:
> + dev_idx = 0xC4;
> + break;
> + default:
> + dev_info(tasdevice->dev,
> + "%s: load block: Other Type = 0x%02x\n",
> + __func__, block->type);
> + break;
> + }
> + } else {
> + switch (block->type) {
> + case MAIN_ALL_DEVICES:
> + dev_idx = 0|0x80;
> + break;
> + case MAIN_DEVICE_A:
> + dev_idx = 0x81;
> + break;
> + case COEFF_DEVICE_A:
> + case PRE_DEVICE_A:
> + dev_idx = 0xC1;
> + break;
> + case MAIN_DEVICE_B:
> + dev_idx = 0x82;
> + break;
> + case COEFF_DEVICE_B:
> + case PRE_DEVICE_B:
> + dev_idx = 0xC2;
> + break;
> + case MAIN_DEVICE_C:
> + dev_idx = 0x83;
> + break;
> + case COEFF_DEVICE_C:
> + case PRE_DEVICE_C:
> + dev_idx = 0xC3;
> + break;
> + case MAIN_DEVICE_D:
> + dev_idx = 0x84;
> + break;
> + case COEFF_DEVICE_D:
> + case PRE_DEVICE_D:
> + dev_idx = 0xC4;
> + break;
> + default:
> + dev_info(tasdevice->dev,
> + "%s: load block: Other Type = 0x%02x\n",
> + __func__, block->type);
> + break;
> + }
> + }
> +
> + for (i = 0, length = 0; i < block->nr_subblocks; i++) {
> + int rc = tasdevice_process_block(tasdevice, data + length,
> + 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_header_git(struct tasdevice_priv
> + *tas_dev, const struct firmware *fmw, int offset)
> +{
> + struct tasdevice_fw *tas_fmw = tas_dev->fmw;
> + struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
> + const unsigned char *buf = fmw->data;
> + int len = strlen((char *)&buf[offset]);
> +
> + len++;
> +
> + if (offset + len > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + offset += len;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device_family = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + if (fw_hdr->device_family != 0) {
> + dev_err(tas_dev->dev, "%s: not TAS device\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
> + fw_hdr->device == 6) {
> + dev_err(tas_dev->dev, "Unsupported dev %d\n", fw_hdr->device);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + fw_hdr->ndev = deviceNumber[fw_hdr->device];
> + if (fw_hdr->ndev != tas_dev->ndev) {
> + dev_err(tas_dev->dev,
> + "%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
> + __func__, fw_hdr->ndev,
> + tas_dev->ndev);
> + offset = -EINVAL;
> + }
> +
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_variable_hdr_cal(struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
> +{
> + struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
> + const unsigned char *buf = fmw->data;
> + int len = strlen((char *)&buf[offset]);
> +
> + len++;
> +
> + if (offset + len > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + offset += len;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: DeviceFamily error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device_family = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + if (fw_hdr->device_family != 0) {
> + dev_err(tas_dev->dev, "%s: not TAS device\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Device error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_hdr->device = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
> + fw_hdr->device == 6) {
> + dev_err(tas_dev->dev, "Unsupported dev %d\n", fw_hdr->device);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + fw_hdr->ndev = deviceNumber[fw_hdr->device];
> + if (fw_hdr->ndev != 1) {
> + dev_err(tas_dev->dev,
> + "%s: calbin must be 1, but currently ndev(%u)\n",
> + __func__, fw_hdr->ndev);
> + offset = -EINVAL;
> + }
> +
> +out:
> + return offset;
> +}
> +
> +static inline void tas2781_clear_calfirmware(struct tasdevice_fw
> + *tas_fmw)
> +{
> + unsigned int blks;
> + int i;
> +
> + if (tas_fmw->calibrations) {
> + struct tasdevice_calibration *calibration;
> +
> + for (i = 0; i < tas_fmw->nr_calibrations; i++) {
> + calibration = &(tas_fmw->calibrations[i]);
> + if (calibration) {
> + struct tasdevice_data *im =
> + &(calibration->dev_data);
> +
> + if (im->dev_blks) {
> + struct tasdev_blk *block;
> +
> + for (blks = 0; blks < im->nr_blk;
> + blks++) {
> + block = &(im->dev_blks[blks]);
> + kfree(block->data);
> + }
> + kfree(im->dev_blks);
> + }
> + }
> + }
> + kfree(tas_fmw->calibrations);
> + }
> + kfree(tas_fmw);
> +}
> +
> +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 + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: Type error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->type = SMS_HTONL(data[offset], data[offset + 1],
> + data[offset + 2], data[offset + 3]);
> + offset += 4;
> +
> + if (tas_fmw->fw_hdr.fixed_hdr.drv_ver >=
> + PPC_DRIVER_CRCCHK) {
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "PChkSumPresent error\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + block->is_pchksum_present = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: PChkSum error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->pchksum = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "YChkSumPresent error\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + block->is_ychksum_present = data[offset];
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: YChkSum error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->ychksum = data[offset];
> + offset++;
> + } else {
> + block->is_pchksum_present = 0;
> + block->is_ychksum_present = 0;
> + }
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: Commands error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + block->nr_cmds = SMS_HTONL(data[offset], data[offset + 1],
> + data[offset + 2], data[offset + 3]);
> + 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;
> + }
> + block->data = kmemdup(&data[offset], n, GFP_KERNEL);
> + if (!block->data) {
> + offset = -ENOMEM;
> + goto out;
> + }
> + offset += n;
> +out:
> + return offset;
> +}
> +
> +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 nr_block;
> + 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 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: Description error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += n;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_fmw->dev, "%s: Blocks error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + img_data->nr_blk = SMS_HTONS(data[offset], data[offset + 1]);
> + offset += 2;
> +
> + img_data->dev_blks =
> + kcalloc(img_data->nr_blk, sizeof(struct tasdev_blk),
> + GFP_KERNEL);
> + if (!img_data->dev_blks) {
> + offset = -ENOMEM;
> + goto out;
> + }
> + for (nr_block = 0; nr_block < img_data->nr_blk; nr_block++) {
> + blk = &(img_data->dev_blks[nr_block]);
> + offset = fw_parse_block_data(tas_fmw, blk, fmw, offset);
> + if (offset < 0) {
> + offset = -EINVAL;
> + goto out;
> + }
> + }
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_calibration_data(struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
> +{
> + struct tasdevice_calibration *calibration;
> + unsigned char *data = (unsigned char *)fmw->data;
> + unsigned int nr_calibration = 0;
> + unsigned int n;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Calibrations error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + tas_fmw->nr_calibrations = SMS_HTONS(data[offset], data[offset + 1]);
> + offset += 2;
> +
> + if (tas_fmw->nr_calibrations != 1) {
> + dev_err(tas_dev->dev,
> + "%s: only support one calibraiton(%d)!\n",
> + __func__, tas_fmw->nr_calibrations);
> + goto out;
> + }
> +
> + tas_fmw->calibrations =
> + kcalloc(tas_fmw->nr_calibrations,
> + sizeof(struct tasdevice_calibration), GFP_KERNEL);
> + if (!tas_fmw->calibrations) {
> + offset = -ENOMEM;
> + goto out;
> + }
> + for (nr_calibration = 0; nr_calibration < tas_fmw->nr_calibrations;
> + nr_calibration++) {
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "Calibrations error\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + calibration = &(tas_fmw->calibrations[nr_calibration]);
> + offset += 64;
> +
> + n = strlen((char *)&data[offset]);
> + n++;
> + if (offset + n > fmw->size) {
> + dev_err(tas_dev->dev, "Description err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += n;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Prog err, offset = %d\n",
> + __func__, offset);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Conf err, offset = %d\n",
> + __func__, offset);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + offset = fw_parse_data(tas_fmw, &(calibration->dev_data), fmw,
> + offset);
> + if (offset < 0)
> + goto out;
> + }
> +
> +out:
> +
> + return offset;
> +}
> +
> +static int fw_parse_program_data(struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
> +{
> + unsigned char *buf = (unsigned char *)fmw->data;
> + struct tasdevice_prog *program;
> + int nr_program;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + tas_fmw->nr_programs = SMS_HTONS(buf[offset], buf[offset + 1]);
> + offset += 2;
> +
> + if (tas_fmw->nr_programs == 0) {
> + /*Not error in calibration Data file, return directly*/
> + dev_info(tas_dev->dev, "%s: No Programs data, maybe calbin\n",
> + __func__);
> + goto out;
> + }
> +
> + tas_fmw->programs =
> + kcalloc(tas_fmw->nr_programs, sizeof(struct tasdevice_prog),
> + GFP_KERNEL);
> + if (!tas_fmw->programs) {
> + offset = -ENOMEM;
> + goto out;
> + }
> + for (nr_program = 0; nr_program < tas_fmw->nr_programs; nr_program++) {
> + int n = 0;
> +
> + program = &(tas_fmw->programs[nr_program]);
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpName error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 64;
> +
> + n = strlen((char *)&buf[offset]);
> + n++;
> + if (offset + n > fmw->size) {
> + dev_err(tas_dev->dev, "Description err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + offset += n;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: AppMode err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "PDMI2SMode err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: ISnsPD error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: VSnsPD error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PowerLDG err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + offset = fw_parse_data(tas_fmw, &(program->dev_data), fmw,
> + offset);
> + if (offset < 0)
> + goto out;
> + }
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_configuration_data(
> + struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw,
> + const struct firmware *fmw, int offset)
> +{
> + unsigned char *data = (unsigned char *)fmw->data;
> + struct tasdevice_config *config;
> + unsigned int n_configs;
> + int n;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + tas_fmw->nr_configurations = SMS_HTONS(data[offset], data[offset + 1]);
> + offset += 2;
> +
> + if (tas_fmw->nr_configurations == 0) {
> + dev_err(tas_dev->dev, "%s: Conf is zero\n", __func__);
> + /*Not error for calibration Data file, return directly*/
> + goto out;
> + }
> + tas_fmw->configs =
> + kcalloc(tas_fmw->nr_configurations,
> + sizeof(struct tasdevice_config), GFP_KERNEL);
> + if (!tas_fmw->configs) {
> + offset = -ENOMEM;
> + goto out;
> + }
> + for (n_configs = 0; n_configs < tas_fmw->nr_configurations;
> + n_configs++) {
> + config =
> + &(tas_fmw->configs[n_configs]);
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + memcpy(config->name, &data[offset], 64);
> + offset += 64;
> +
> + n = strlen((char *)&data[offset]);
> + n++;
> + if (offset + n > fmw->size) {
> + dev_err(tas_dev->dev, "Description err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> +
> + offset += n;
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "Device_orientation err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: Program err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "SampleRate err\n");
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> +
> + if (offset + 1 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PLLSrc err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset++;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: PLLRate err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> +
> + if (offset + 2 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnFsRate err\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 2;
> +
> + offset = fw_parse_data(tas_fmw, &(config->dev_data),
> + fmw, offset);
> + if (offset < 0)
> + goto out;
> + }
> +out:
> + return offset;
> +}
> +
> +static int fw_parse_header(struct tasdevice_priv *tas_dev,
> + 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);
> + const unsigned char magic_number[] = { 0x35, 0x35, 0x35, 0x32 };
> + const unsigned char *buf = (unsigned char *)fmw->data;
> +
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + if (memcmp(&buf[offset], magic_number, 4)) {
> + dev_err(tas_dev->dev, "%s: Magic num NOT match\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnFWSize error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_fixed_hdr->fwsize = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: File Size error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + if (fw_fixed_hdr->fwsize != fmw->size) {
> + dev_err(tas_dev->dev, "File size not match, %lu %u",
> + (unsigned long)fmw->size, fw_fixed_hdr->fwsize);
> + offset = -EINVAL;
> + goto out;
> + }
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnChecksum error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnPPCVersion error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_fixed_hdr->ppcver = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnFWVersion error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnDriverVersion error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + fw_fixed_hdr->drv_ver = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + if (offset + 4 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mnTimeStamp error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + if (offset + 64 > fmw->size) {
> + dev_err(tas_dev->dev, "%s: mpDDCName error\n", __func__);
> + offset = -EINVAL;
> + goto out;
> + }
> + offset += 64;
> +
> + out:
> + return offset;
> +}
> +
> +/* 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) {
> + 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) {
> + if (reg <= TAS2781_YRAM3_END_REG &&
> + reg >= TAS2781_YRAM3_START_REG) {
> + if ((reg + len) > TAS2781_YRAM3_END_REG)
> + cd->len =
> + TAS2781_YRAM3_END_REG - reg + 1;
> + else
> + cd->len = len;
> + in = true;
> + cd->offset = reg;
> + } else if (reg < TAS2781_YRAM3_START_REG) {
> + if (reg + len - 1 >= TAS2781_YRAM3_START_REG) {
> + cd->offset = TAS2781_YRAM3_START_REG;
> + cd->len =
> + len - (TAS2781_YRAM3_START_REG - reg);
> + in = true;
> + }
> + }
> + }
> + } else if (book ==
> + TAS2781_YRAM_BOOK2) {
> + if (page == TAS2781_YRAM5_PAGE) {
> + 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 - 1 >= TAS2781_YRAM5_START_REG) {
> + cd->offset = TAS2781_YRAM5_START_REG;
> + cd->len =
> + len - (TAS2781_YRAM5_START_REG - 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) {
> + if (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;
Indentation does not look great. (same comment in the function above)
> + }
> + }
> + }
> + } else if (book ==
> + TAS2781_YRAM_BOOK2) {
Keep the test on the same line? (same comment in the function above)
> + if (page >= TAS2781_YRAM4_START_PAGE &&
> + page <= TAS2781_YRAM4_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;
Indentation does not look great.
> + }
> + }
> + }
> + }
> +
> + 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 == false)
> + in = check_inblock_yram(cd, book,
> + page, reg, len);
> +
> + return in;
> +}
> +
> +static int do_singlereg_checksum(struct tasdevice_priv *tasdevice,
> + enum channel chl, unsigned char book, unsigned char page,
> + unsigned char reg, unsigned char val)
> +{
> + struct tas_crc crc_data;
> + unsigned int nData1;
> + int ret;
> + 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) {
if (!in)
goto end;
would save 1 level of indentation
> + 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 int do_multireg_checksum(struct tasdevice_priv *tasdevice,
> + enum channel 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, 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) {
if (!in)
goto end;
would save 1 level of indentation
> + if (len == 1) {
> + dev_err(tasdevice->dev, "firmware error\n");
> + ret = -EINVAL;
> + goto end;
> + } else {
> + 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 tasdev_byte_chksum(struct tasdevice_priv *tas_dev,
> + struct tasdev_blk *block, int chn, unsigned char book,
> + unsigned char page, unsigned char reg, unsigned char val,
> + unsigned char *crc_chksum)
> +{
> + int ret = do_singlereg_checksum(tas_dev, chn, book, page, reg, val);
> +
> + if (ret > 0) {
> + *crc_chksum += (unsigned char)ret;
> + goto end;
> + }
> +
> + if (ret == -EAGAIN) {
> + block->nr_retry--;
> + if (block->nr_retry <= 0) {
> + if ((block->type == MAIN_ALL_DEVICES)
> + || (block->type == MAIN_DEVICE_A)
> + || (block->type == MAIN_DEVICE_B)
> + || (block->type == MAIN_DEVICE_C)
> + || (block->type == MAIN_DEVICE_D))
> + tas_dev->tasdevice[chn].cur_prog = -1;
> + else
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + }
> + }
> +end:
> + return ret;
> +}
> +
> +static int tasdev_multibyte_chksum(struct tasdevice_priv *tas_dev,
> + struct tasdev_blk *block, int chn, unsigned char book,
> + unsigned char page, unsigned char reg, unsigned int len,
> + unsigned char *crc_chksum)
> +{
> + int ret = do_multireg_checksum(tas_dev, chn, book, page, reg, len);
> +
> + if (ret > 0) {
> + *crc_chksum += (unsigned char)ret;
> + goto end;
> + }
> +
> + if (ret == -EAGAIN) {
> + block->nr_retry--;
> + if (block->nr_retry <= 0) {
> + if ((block->type == MAIN_ALL_DEVICES)
> + || (block->type == MAIN_DEVICE_A)
> + || (block->type == MAIN_DEVICE_B)
> + || (block->type == MAIN_DEVICE_C)
> + || (block->type == MAIN_DEVICE_D))
> + tas_dev->tasdevice[chn].cur_prog = -1;
> + else
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + }
> + }
> +end:
> + return ret;
> +}
> +
> +static int tasdev_multibytes_wr(struct tasdevice_priv *tas_dev,
> + 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_dev, chn,
> + TASDEVICE_REG(book, page, reg), data + 3, len);
> + if (ret < 0)
> + goto end;
> + if (block->is_ychksum_present)
> + ret = tasdev_multibyte_chksum(tas_dev, block, chn,
> + book, page, reg, len, crc_chksum);
> +
Uneeded new line.
> + } else {
> + ret = tasdevice_dev_write(tas_dev,
> + chn,
> + TASDEVICE_REG(book, page,
> + reg),
> + data[3]);
> + if (ret < 0)
> + goto end;
> + if (block->is_ychksum_present)
> + ret = tasdev_byte_chksum(tas_dev, block, chn, book,
> + page, reg, 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_dev,
> + struct tasdev_blk *block, int chn)
> +{
> + unsigned int nr_value;
> + int ret;
> +
> + ret = tasdevice_dev_read(tas_dev, chn, TASDEVICE_I2CChecksum,
> + &nr_value);
> + if (ret < 0) {
> + dev_err(tas_dev->dev, "%s: Chn %d\n", __func__, chn);
> + if ((block->type == MAIN_ALL_DEVICES)
> + || (block->type == MAIN_DEVICE_A)
> + || (block->type == MAIN_DEVICE_B)
> + || (block->type == MAIN_DEVICE_C)
> + || (block->type == MAIN_DEVICE_D))
> + tas_dev->tasdevice[chn].cur_prog = -1;
> + else
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + goto end;
> + }
> +
> + if ((nr_value & 0xff) != block->pchksum) {
> + dev_err(tas_dev->dev, "%s: Blk PChkSum Chn %d ", __func__,
> + chn);
> + dev_err(tas_dev->dev, "PChkSum = 0x%x, Reg = 0x%x\n",
> + block->pchksum, (nr_value & 0xff));
> + tas_dev->tasdevice[chn].err_code |= ERROR_PRAM_CRCCHK;
> + ret = -EAGAIN;
> + block->nr_retry--;
> +
> + if (block->nr_retry <= 0) {
> + if ((block->type == MAIN_ALL_DEVICES)
> + || (block->type == MAIN_DEVICE_A)
> + || (block->type == MAIN_DEVICE_B)
> + || (block->type == MAIN_DEVICE_C)
> + || (block->type == MAIN_DEVICE_D))
> + tas_dev->tasdevice[chn].cur_prog = -1;
> + else
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + }
> + } else
> + tas_dev->tasdevice[chn].err_code &= ~ERROR_PRAM_CRCCHK;
> +end:
> + return ret;
> +}
> +
> +static int tasdev_load_blk(struct tasdevice_priv *tas_dev,
> + struct tasdev_blk *block, int chn)
> +{
> + unsigned int sleep_time;
> + unsigned int len;
> + unsigned int nr_cmds;
> + unsigned char *data = block->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_dev, chn,
> + TASDEVICE_I2CChecksum, 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_dev, chn,
> + TASDEVICE_REG(book, page, offset),
> + val);
> + if (ret < 0)
> + goto end;
> + if (block->is_ychksum_present) {
> + ret = tasdev_byte_chksum(tas_dev,
> + block, chn, book, page, offset,
> + 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_dev, 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_dev, 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_dev->dev,
> + "Blk YChkSum: FW = 0x%x, YCRC = 0x%x\n",
> + block->ychksum, crc_chksum);
> +
> + tas_dev->tasdevice[chn].err_code &=
> + ~ERROR_YRAM_CRCCHK;
> + ret = 0;
> + }
> + /*skip current blk*/
Missing spaces (same above)
> + break;
> + }
> +end:
> + return ret;
> +}
> +
> +static int tasdevice_load_block(struct tasdevice_priv *tas_dev,
> + 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_dev->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_dev->dev, "load blk: Other Type = 0x%02x\n",
> + block->type);
> + break;
> + }
> +
> + for (; chn < chnend; chn++) {
> + block->nr_retry = 6;
> + if (tas_dev->tasdevice[chn].is_loading == false)
> + continue;
> + ret = tasdev_load_blk(tas_dev, block, chn);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "dev %d, Blk (%d) load error\n",
> + chn, block->type);
> + rc |= ret;
> + }
> +
> + return rc;
> +}
> +
> +static int tasdevice_load_data(struct tasdevice_priv *tas_dev,
> + struct tasdevice_data *dev_data)
> +{
> + struct tasdev_blk *block;
> + unsigned int nr_block;
> + int ret = 0;
> +
> + for (nr_block = 0; nr_block < dev_data->nr_blk; nr_block++) {
> + block = &(dev_data->dev_blks[nr_block]);
> + ret = tas_dev->tasdevice_load_block(tas_dev, block);
> + if (ret < 0)
> + break;
> + }
> +
> + return ret;
> +}
> +
> +static int tasdevice_load_calibrated_data(
> + struct tasdevice_priv *tas_dev, struct tasdevice_data *dev_data)
> +{
> + struct tasdev_blk *block;
> + unsigned int nr_block;
> + int ret = 0;
> +
> + for (nr_block = 0; nr_block < dev_data->nr_blk; nr_block++) {
> + block = &(dev_data->dev_blks[nr_block]);
> + ret = tasdevice_load_block(tas_dev, block);
> + if (ret < 0)
> + break;
> + }
> +
> + return ret;
> +}
> +
> +int tas2781_load_calibration(void *context,
> + char *file_name, enum channel i)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *)context;
> + struct tasdevice *tasdev = &(tas_dev->tasdevice[i]);
> + const struct firmware *fw_entry;
> + struct tasdevice_fw *tas_fmw;
> + struct firmware fmw;
> + int ret, offset = 0;
> +
> + ret = request_firmware(&fw_entry, file_name, tas_dev->dev);
> + if (!ret) {
If testing 'ret', the 2 blocks below would be reversed and it would save
1 level of indentation.
> + if (!fw_entry->size) {
> + dev_err(tas_dev->dev,
> + "%s: file read error: size = %lu\n",
> + __func__, (unsigned long)fw_entry->size);
> + goto out;
> + }
> + fmw.size = fw_entry->size;
> + fmw.data = fw_entry->data;
> + } else {
> + dev_info(tas_dev->dev,
> + "%s: Request firmware %s failed\n",
> + __func__, file_name);
> + goto out;
> + }
> +
> + tas_fmw = tasdev->cali_data_fmw = kcalloc(1,
> + sizeof(struct tasdevice_fw), GFP_KERNEL);
> + if (!tasdev->cali_data_fmw) {
> + dev_err(tas_dev->dev, "%s: FW memory failed!\n", __func__);
useless error message?
> + ret = -ENOMEM;
> + goto out;
> + }
> + tas_fmw->dev = tas_dev->dev;
> + offset = fw_parse_header(tas_dev, tas_fmw, &fmw, offset);
> + if (offset == -EINVAL) {
> + dev_err(tas_dev->dev, "%s: fw_parse_header EXIT!\n", __func__);
> + ret = offset;
> + goto out;
> + }
> + offset = fw_parse_variable_hdr_cal(tas_dev, tas_fmw, &fmw, offset);
> + if (offset == -EINVAL) {
> + dev_err(tas_dev->dev,
> + "%s: fw_parse_variable_header_cal EXIT!\n", __func__);
> + ret = offset;
> + goto out;
> + }
> + offset = fw_parse_program_data(tas_dev, tas_fmw, &fmw, offset);
> + if (offset < 0) {
> + dev_err(tas_dev->dev, "fw_parse_program_data EXIT!\n");
> + ret = offset;
> + goto out;
> + }
> + offset = fw_parse_configuration_data(tas_dev, tas_fmw, &fmw,
> + offset);
> + if (offset < 0) {
> + dev_err(tas_dev->dev, "fw_parse_configuration_data EXIT!\n");
> + ret = offset;
> + goto out;
> + }
> + offset = fw_parse_calibration_data(tas_dev,
> + tas_fmw, &fmw, offset);
> + if (offset < 0) {
> + dev_err(tas_dev->dev, "fw_parse_calibration_data EXIT!\n");
> + ret = offset;
> + goto out;
> + }
> + tasdev->is_calibrated_data_loaded = true;
> +out:
> + if (fw_entry) {
> + release_firmware(fw_entry);
> + fw_entry = NULL;
> + }
> + return ret;
> +}
> +
> +int tasdevice_dspfw_ready(const struct firmware *fmw, void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> + struct tasdevice_fw_fixed_hdr *fw_fixed_hdr;
> + struct tasdevice_fw *tas_fmw;
> + int offset = 0;
> + int ret = 0;
> +
> + if (!fmw || !fmw->data) {
> + dev_err(tas_dev->dev, "%s: Failed to read firmware %s\n",
> + __func__, tas_dev->coef_binaryname);
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + tas_dev->fmw = kcalloc(1, sizeof(struct tasdevice_fw), GFP_KERNEL);
Why? kzalloc()?
> + if (!tas_dev->fmw) {
> + ret = -ENOMEM;
> + goto out;
> + }
> + tas_fmw = tas_dev->fmw;
> + tas_fmw->dev = tas_dev->dev;
> + offset = fw_parse_header(tas_dev, tas_fmw, fmw, offset);
> +
> + if (offset == -EINVAL)
> + goto out;
> + fw_fixed_hdr = &(tas_fmw->fw_hdr.fixed_hdr);
> + switch (fw_fixed_hdr->drv_ver) {
> + case 0x301:
> + case 0x302:
> + case 0x502:
> + tas_dev->fw_parse_variable_header =
> + fw_parse_variable_header_kernel;
> + tas_dev->fw_parse_program_data =
> + fw_parse_program_data_kernel;
> + tas_dev->fw_parse_configuration_data =
> + fw_parse_configuration_data_kernel;
> + tas_dev->tasdevice_load_block =
> + tasdevice_load_block_kernel;
> + break;
> + case 0x202:
> + case 0x400:
> + tas_dev->fw_parse_variable_header =
> + fw_parse_variable_header_git;
> + tas_dev->fw_parse_program_data =
> + fw_parse_program_data;
> + tas_dev->fw_parse_configuration_data =
> + fw_parse_configuration_data;
> + tas_dev->tasdevice_load_block =
> + tasdevice_load_block;
> + break;
> + default:
> + if (fw_fixed_hdr->drv_ver == 0x100) {
> + if (fw_fixed_hdr->ppcver >= PPC3_VERSION) {
> + tas_dev->fw_parse_variable_header =
> + fw_parse_variable_header_kernel;
> + tas_dev->fw_parse_program_data =
> + fw_parse_program_data_kernel;
> + tas_dev->fw_parse_configuration_data =
> + fw_parse_configuration_data_kernel;
> + tas_dev->tasdevice_load_block =
> + tasdevice_load_block_kernel;
> + } else {
> + switch (fw_fixed_hdr->ppcver) {
> + case 0x00:
> + tas_dev->fw_parse_variable_header =
> + fw_parse_variable_header_git;
> + tas_dev->fw_parse_program_data =
> + fw_parse_program_data;
> + tas_dev->fw_parse_configuration_data =
> + fw_parse_configuration_data;
> + tas_dev->tasdevice_load_block =
> + tasdevice_load_block;
> + break;
> + default:
> + dev_err(tas_dev->dev,
> + "%s: PPCVersion must be 0x0 or 0x%02x",
> + __func__, PPC3_VERSION);
> + dev_err(tas_dev->dev, " Current:0x%02x\n",
> + fw_fixed_hdr->ppcver);
> + offset = -EINVAL;
> + break;
> + }
> + }
> + } else {
> + dev_err(tas_dev->dev,
> + "DriverVersion must be 0x0, 0x230 or above 0x230 ");
> + dev_err(tas_dev->dev, "current is 0x%02x\n",
> + fw_fixed_hdr->drv_ver);
> + offset = -EINVAL;
> + }
> + break;
> + }
Looks really odd.
Missing indentation for the whole if/else blocks above?
> +
> + offset = tas_dev->fw_parse_variable_header(tas_dev, fmw, offset);
> + if (offset < 0) {
> + ret = offset;
> + goto out;
> + }
> + offset = tas_dev->fw_parse_program_data(tas_dev, tas_fmw, fmw,
> + offset);
> + if (offset < 0) {
> + ret = offset;
> + goto out;
> + }
> + offset = tas_dev->fw_parse_configuration_data(tas_dev,
> + tas_fmw, fmw, offset);
> + if (offset < 0)
> + ret = offset;
> +
> +out:
> + return ret;
> +}
> +
> +void tasdevice_calbin_remove(void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> + struct tasdevice *tasdev;
> + int i;
> +
> + if (tas_dev) {
if (!tas_dev)
return;
would save some indentation.
> + for (i = 0; i < tas_dev->ndev; i++) {
> + tasdev = &(tas_dev->tasdevice[i]);
> + if (tasdev->cali_data_fmw) {
> + tas2781_clear_calfirmware(
> + tasdev->cali_data_fmw);
> + tasdev->cali_data_fmw = NULL;
> + }
> + }
> + }
> +}
> +
> +static void tasdev_dsp_prog_blk_remove(struct tasdevice_prog *prog)
> +{
> + struct tasdevice_data *im;
> + struct tasdev_blk *blk;
> + unsigned int nr_blk;
> +
> + if (prog) {
if (!prog)
return;
would save some indentation.
> + im = &(prog->dev_data);
> +
> + if (!im->dev_blks)
> + return;
> +
> + for (nr_blk = 0; nr_blk < im->nr_blk; nr_blk++) {
> + blk = &(im->dev_blks[nr_blk]);
> + kfree(blk->data);
> + }
> + kfree(im->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 *im;
> + struct tasdev_blk *blk;
> + unsigned int nr_blk;
> +
> + if (cfg) {
> + im = &(cfg->dev_data);
> +
> + if (!im->dev_blks)
> + return;
> +
> + for (nr_blk = 0; nr_blk < im->nr_blk; nr_blk++) {
> + blk = &(im->dev_blks[nr_blk]);
> + kfree(blk->data);
> + }
> + kfree(im->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_dsp_remove(void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> +
> + if (tas_dev->fmw) {
> + struct tasdevice_fw *tas_fmw = tas_dev->fmw;
> +
> + if (tas_fmw->programs)
> + tasdev_dsp_prog_remove(tas_fmw->programs,
> + tas_fmw->nr_programs);
> + if (tas_fmw->configs)
> + tasdev_dsp_cfg_remove(tas_fmw->configs,
> + tas_fmw->nr_configurations);
> + kfree(tas_fmw);
> + tas_dev->fmw = NULL;
> + }
> +}
> +
> +static int tas2781_set_calibration(void *context, enum channel i,
> + int n_calibration)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> + struct tasdevice *tasdevice = &(tas_dev->tasdevice[i]);
> + struct tasdevice_fw *cal_fmw = tasdevice->cali_data_fmw;
> + int ret = 0;
> +
> + if ((!tas_dev->fmw->programs) || (!tas_dev->fmw->configs)) {
> + dev_err(tas_dev->dev, "%s, Firmware not loaded\n\r", __func__);
> + ret = 0;
> + goto out;
> + }
> +
> + if (n_calibration == 0xFF || (n_calibration == 0x100
> + && tasdevice->is_calibrated_data_loaded == false)) {
> + if (cal_fmw) {
> + tasdevice->is_calibrated_data_loaded = false;
> + tas2781_clear_calfirmware(cal_fmw);
> + cal_fmw = NULL;
> + }
> +
> + scnprintf(tas_dev->cal_binaryname[i], 64, "%s_cal_0x%02x.bin",
> + tas_dev->dev_name, tas_dev->tasdevice[i].dev_addr);
> + ret = tas2781_load_calibration(tas_dev,
> + tas_dev->cal_binaryname[i], i);
> + if (ret != 0) {
> + dev_err(tas_dev->dev,
> + "%s: load %s error, no-side effect\n",
> + __func__, tas_dev->cal_binaryname[i]);
> + ret = 0;
In tasdevice_rca_ready(), a similar code also have a:
tas_dev->is_glb_calibrated_data_loaded = false;
is it needed here?
> + }
> + }
> + tasdevice->is_loading = true;
> + tasdevice->is_loaderr = false;
> +
> + if (cal_fmw) {
> + struct tasdevice_calibration *calibration =
> + cal_fmw->calibrations;
> +
> + if (calibration)
> + tasdevice_load_calibrated_data(tas_dev,
> + &(calibration->dev_data));
> + } else
> + dev_err(tas_dev->dev, "%s: No calibrated data for dev %d\n",
> + __func__, i);
> +
> +out:
> + return ret;
> +}
> +
> +int tasdevice_select_tuningprm_cfg(void *context, int prm_no,
> + int cfg_no, int rca_conf_no)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> + struct tasdevice_rca *rca = &(tas_dev->rcabin);
> + struct tasdevice_config_info **cfg_info = rca->cfg_info;
> + struct tasdevice_fw *tas_fmw = tas_dev->fmw;
> + struct tasdevice_prog *program;
> + struct tasdevice_config *conf;
> + int prog_status = 0;
> + int status, i;
> +
> + if (!tas_fmw) {
> + dev_err(tas_dev->dev, "%s: Firmware is NULL\n", __func__);
> + goto out;
> + }
> +
> + if (cfg_no >= tas_fmw->nr_configurations) {
> + dev_err(tas_dev->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_dev->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_dev->dev,
> + "conf_no:%d should be in range from 0 to %u\n",
> + rca_conf_no, rca->ncfgs-1);
> + goto out;
> + }
> +
> + conf = &(tas_fmw->configs[cfg_no]);
> + for (i = 0, prog_status = 0; i < tas_dev->ndev; i++) {
> + if (cfg_info[rca_conf_no]->active_dev & (1 << i)) {
> + if (tas_dev->tasdevice[i].cur_prog != prm_no) {
> + tas_dev->tasdevice[i].cur_conf = -1;
> + tas_dev->tasdevice[i].is_loading = true;
> + prog_status++;
> + }
> + } else
> + tas_dev->tasdevice[i].is_loading = false;
> + tas_dev->tasdevice[i].is_loaderr = false;
> + }
> +
> + if (prog_status) {
> + program = &(tas_fmw->programs[prm_no]);
> + tasdevice_load_data(tas_dev, &(program->dev_data));
> + for (i = 0; i < tas_dev->ndev; i++) {
> + if (tas_dev->tasdevice[i].is_loaderr == true)
> + continue;
> + else if (tas_dev->tasdevice[i].is_loaderr == false
> + && tas_dev->tasdevice[i].is_loading == true) {
> + struct tasdevice_fw *cal_fmw =
> + tas_dev->tasdevice[i].cali_data_fmw;
> +
> + if (cal_fmw) {
> + struct tasdevice_calibration
> + *calibration =
> + cal_fmw->calibrations;
> +
> + if (calibration)
> + tasdevice_load_calibrated_data(
> + tas_dev,
> + &(calibration->dev_data));
> + }
> + tas_dev->tasdevice[i].cur_prog = prm_no;
> + }
> + }
> + }
> +
> + if (tas_dev->is_glb_calibrated_data_loaded == false) {
> + for (i = 0; i < tas_dev->ndev; i++)
> + tas2781_set_calibration(tas_dev, i, 0x100);
> + tas_dev->is_glb_calibrated_data_loaded = true;
> + /* Unwise to reload calibrationdata everytime,
> + * this code will work once even if calibrated
> + * data still failed to be got
> + */
> + }
> +
> + for (i = 0, status = 0; i < tas_dev->ndev; i++) {
> + if (tas_dev->tasdevice[i].cur_conf != cfg_no
> + && (cfg_info[rca_conf_no]->active_dev & (1 << i))
> + && (tas_dev->tasdevice[i].is_loaderr == false)) {
> + status++;
> + tas_dev->tasdevice[i].is_loading = true;
> + } else
> + tas_dev->tasdevice[i].is_loading = false;
> + }
> +
> + if (status) {
> + status = 0;
> + tasdevice_load_data(tas_dev, &(conf->dev_data));
> + for (i = 0; i < tas_dev->ndev; i++) {
> + if (tas_dev->tasdevice[i].is_loaderr == true) {
> + status |= 1 << (i + 4);
> + continue;
> + } else if (tas_dev->tasdevice[i].is_loaderr == false
> + && tas_dev->tasdevice[i].is_loading == true)
> + tas_dev->tasdevice[i].cur_conf = cfg_no;
> + }
> + } else
> + dev_err(tas_dev->dev,
> + "%s: No device is in active in conf %d\n",
> + __func__, rca_conf_no);
> +
> + status |= cfg_info[rca_conf_no]->active_dev;
> +out:
> + return prog_status;
> +}
> diff --git a/sound/soc/codecs/tas2781-dsp.h b/sound/soc/codecs/tas2781-dsp.h
> new file mode 100644
> index 000000000000..6c6480fb14b1
> --- /dev/null
> +++ b/sound/soc/codecs/tas2781-dsp.h
> @@ -0,0 +1,180 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +//
> +// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
> +//
> +// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
> +// https://www.ti.com
> +//
> +// The TAS2781 driver implements a flexible and configurable
> +// algo coefficient setting for one, two, or even multiple
> +// TAS2781 chips.
> +//
> +// Author: Shenghao Ding <shenghao-ding@...com>
> +// Author: Kevin Lu <kevin-lu@...com>
> +//
> +
> +#ifndef __TASDEVICE_DSP_H__
> +#define __TASDEVICE_DSP_H__
> +
> +#define MAIN_ALL_DEVICES 0x0d
> +#define MAIN_DEVICE_A 0x01
> +#define MAIN_DEVICE_B 0x08
> +#define MAIN_DEVICE_C 0x10
> +#define MAIN_DEVICE_D 0x14
> +#define COEFF_DEVICE_A 0x03
> +#define COEFF_DEVICE_B 0x0a
> +#define COEFF_DEVICE_C 0x11
> +#define COEFF_DEVICE_D 0x15
> +#define PRE_DEVICE_A 0x04
> +#define PRE_DEVICE_B 0x0b
> +#define PRE_DEVICE_C 0x12
> +#define PRE_DEVICE_D 0x16
> +
> +#define PPC3_VERSION 0x4100
> +#define RCA_CONFIGID_BYPASS_ALL 0
> +#define TASDEVICE_DEVICE_SUM 8
> +#define TASDEVICE_CONFIG_SUM 64
> +
> +enum channel {
> + top_left_Chn,
> + top_right_chn,
> + bottom_left_Chn,
> + bottom_right_chn,
> + max_chn,
> +};
> +
> +enum tasdevice_dsp_dev_idx {
> + TASDEVICE_DSP_TAS_2555 = 0,
> + TASDEVICE_DSP_TAS_2555_STEREO,
> + TASDEVICE_DSP_TAS_2557_MONO,
> + TASDEVICE_DSP_TAS_2557_DUAL_MONO,
> + TASDEVICE_DSP_TAS_2559,
> + TASDEVICE_DSP_TAS_2563,
> + TASDEVICE_DSP_TAS_2563_DUAL_MONO = 7,
> + TASDEVICE_DSP_TAS_2563_QUAD,
> + TASDEVICE_DSP_TAS_2563_21,
> + TASDEVICE_DSP_TAS_2781,
> + TASDEVICE_DSP_TAS_2781_DUAL_MONO,
> + TASDEVICE_DSP_TAS_2781_21,
> + TASDEVICE_DSP_TAS_2781_QUAD,
> + TASDEVICE_DSP_TAS_MAX_DEVICE
> +};
> +
> +struct tasdevice_fw_fixed_hdr {
> + unsigned int fwsize;
> + unsigned int ppcver;
> + unsigned int drv_ver;
> +};
> +
> +struct tasdevice_dspfw_hdr {
> + struct tasdevice_fw_fixed_hdr fixed_hdr;
> + unsigned short device_family;
> + unsigned short device;
> + unsigned char ndev;
> +};
> +
> +struct tasdev_blk {
> + int nr_retry;
> + unsigned int type;
> + unsigned char is_pchksum_present;
> + unsigned char pchksum;
> + unsigned char is_ychksum_present;
> + unsigned char ychksum;
> + unsigned int nr_cmds;
> + unsigned int blk_size;
> + unsigned int nr_subblocks;
> + unsigned char *data;
> +};
> +
> +struct tasdevice_data {
> + char name[64];
> + unsigned int nr_blk;
> + struct tasdev_blk *dev_blks;
> +};
> +struct tasdevice_prog {
> + unsigned int prog_size;
> + struct tasdevice_data dev_data;
> +};
> +
> +struct tasdevice_config {
> + unsigned int cfg_size;
> + char name[64];
> + struct tasdevice_data dev_data;
> +};
> +
> +struct tasdevice_calibration {
> + struct tasdevice_data dev_data;
> +};
> +
> +struct tasdevice_fw {
> + struct tasdevice_dspfw_hdr fw_hdr;
> + unsigned short nr_programs;
> + struct tasdevice_prog *programs;
> + unsigned short nr_configurations;
> + struct tasdevice_config *configs;
> + unsigned short nr_calibrations;
> + struct tasdevice_calibration *calibrations;
> + struct device *dev;
> +};
> +
> +enum tasdevice_dsp_fw_state {
> + TASDEVICE_DSP_FW_NONE = 0,
> + TASDEVICE_DSP_FW_PENDING,
> + TASDEVICE_DSP_FW_FAIL,
> + TASDEVICE_DSP_FW_ALL_OK,
> +};
> +
> +enum tasdevice_bin_blk_type {
> + TASDEVICE_BIN_BLK_COEFF = 1,
> + TASDEVICE_BIN_BLK_POST_POWER_UP,
> + TASDEVICE_BIN_BLK_PRE_SHUTDOWN,
> + TASDEVICE_BIN_BLK_PRE_POWER_UP,
> + TASDEVICE_BIN_BLK_POST_SHUTDOWN
> +};
> +
> +struct tasdevice_rca_hdr {
> + unsigned int img_sz;
> + unsigned int checksum;
> + unsigned int binary_version_num;
> + unsigned int drv_fw_version;
> + unsigned char plat_type;
> + unsigned char dev_family;
> + unsigned char reserve;
> + unsigned char ndev;
> + unsigned char devs[TASDEVICE_DEVICE_SUM];
> + unsigned int nconfig;
> + unsigned int config_size[TASDEVICE_CONFIG_SUM];
> +};
> +
> +struct tasdev_blk_data {
> + unsigned char dev_idx;
> + unsigned char block_type;
> + unsigned short yram_checksum;
> + unsigned int block_size;
> + unsigned int n_subblks;
> + unsigned char *regdata;
> +};
> +
> +struct tasdevice_config_info {
> + unsigned int nblocks;
> + unsigned int real_nblocks;
> + unsigned char active_dev;
> + struct tasdev_blk_data **blk_data;
> +};
> +
> +struct tasdevice_rca {
> + struct tasdevice_rca_hdr fw_hdr;
> + int ncfgs;
> + struct tasdevice_config_info **cfg_info;
> + int profile_cfg_id;
> +};
> +
> +int tasdevice_dspfw_ready(const struct firmware *fmw, void *context);
> +void tasdevice_dsp_remove(void *context);
> +void tasdevice_calbin_remove(void *context);
> +int tas2781_load_calibration(void *tas_dev, char *filename,
> + enum channel i);
> +int tasdevice_select_tuningprm_cfg(void *context, int prm,
> + int cfg_no, int rca_conf_no);
> +
> +#endif
> diff --git a/sound/soc/codecs/tas2781-i2c.c b/sound/soc/codecs/tas2781-i2c.c
> new file mode 100644
> index 000000000000..d34b81a3a130
> --- /dev/null
> +++ b/sound/soc/codecs/tas2781-i2c.c
> @@ -0,0 +1,1621 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
> +//
> +// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
> +// https://www.ti.com
> +//
> +// The TAS2781 driver implements a flexible and configurable
> +// algo coefficient setting for one, two, or even multiple
> +// TAS2781 chips.
> +//
> +// Author: Shenghao Ding <shenghao-ding@...com>
> +// Author: Kevin Lu <kevin-lu@...com>
> +//
> +
> +#include <linux/crc8.h>
> +#include <linux/firmware.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_gpio.h>
> +#include <linux/of_irq.h>
> +#include <linux/pm.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <sound/pcm_params.h>
> +#include <sound/soc.h>
> +#include <sound/tlv.h>
> +
> +#include "tas2781.h"
> +
> +#define TASDEVICE_CRC8_POLYNOMIAL 0x4d
> +
> +const char *blocktype[5] = {
> + "COEFF",
> + "POST_POWER_UP",
> + "PRE_SHUTDOWN",
> + "PRE_POWER_UP",
> + "POST_SHUTDOWN"
> +};
> +
> +static const struct i2c_device_id tasdevice_id[] = {
> + { "tas2781", TAS2781 },
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, tasdevice_id);
> +
> +static const struct regmap_range_cfg tasdevice_ranges[] = {
> + {
> + .range_min = 0,
> + .range_max = 256 * 128,
> + .selector_reg = TASDEVICE_PAGE_SELECT,
> + .selector_mask = 0xff,
> + .selector_shift = 0,
> + .window_start = 0,
> + .window_len = 128,
> + },
> +};
> +
> +static const struct regmap_config tasdevice_regmap = {
> + .reg_bits = 16,
> + .val_bits = 8,
> + .cache_type = REGCACHE_RBTREE,
> + .ranges = tasdevice_ranges,
> + .num_ranges = ARRAY_SIZE(tasdevice_ranges),
> + .max_register = 256 * 128,
> +};
> +
> +static const struct of_device_id tasdevice_of_match[] = {
> + { .compatible = "ti,tas2781" },
> + {},
> +};
> +
> +MODULE_DEVICE_TABLE(of, tasdevice_of_match);
> +
> +int tasdevice_process_block(void *context,
> + unsigned char *data, unsigned char dev_idx, int sublocksize)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *)context;
> + unsigned char subblk_typ = data[1];
> + bool is_err = false;
> + int blktyp = dev_idx & 0xC0;
> + int idx = dev_idx & 0x3F;
> + int subblk_offset;
> + int chn, chnend;
> + int rc;
> +
> + if (idx) {
> + chn = idx-1;
Spaces around "-" (checkpath should complain)
> + chnend = idx;
> + } else {
> + if (tas_dev->set_global_mode) {
> + chn = tas_dev->ndev;
> + chnend = tas_dev->ndev + 1;
> + } else {
> + chn = 0;
> + chnend = tas_dev->ndev;
> + }
> + }
> +
> + for (; chn < chnend; chn++) {
> + if (!tas_dev->set_global_mode &&
> + tas_dev->tasdevice[chn].is_loading == false)
> + continue;
> +
> + is_err = false;
> + subblk_offset = 2;
> + switch (subblk_typ) {
> + case TASDEVICE_CMD_SING_W: {
> + int i = 0;
> + unsigned short len = SMS_HTONS(data[2], data[3]);
> +
> + subblk_offset += 2;
> + if (subblk_offset + 4 * len > sublocksize) {
> + dev_err(tas_dev->dev,
> + "process_block: Out of bounary\n");
> + is_err = true;
> + break;
> + }
> +
> + for (i = 0; i < len; i++) {
> + rc = tasdevice_dev_write(tas_dev, 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_dev->dev,
> + "process_block: single write error\n");
> + }
> + subblk_offset += 4;
> + }
> + }
> + break;
> + case TASDEVICE_CMD_BURST: {
> + unsigned short len =
> + SMS_HTONS(data[2], data[3]);
> +
> + subblk_offset += 2;
> + if (subblk_offset + 4 + len > sublocksize) {
> + dev_err(tas_dev->dev,
> + "%s: BST Out of bounary\n",
> + __func__);
> + is_err = true;
> + break;
> + }
> + if (len % 4) {
> + dev_err(tas_dev->dev,
> + "%s:Bst-len(%u)not div by 4\n",
> + __func__, len);
> + break;
> + }
> +
> + rc = tasdevice_dev_bulk_write(tas_dev, 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_dev->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_dev->dev,
> + "%s: deley Out of bounary\n",
> + __func__);
> + is_err = true;
> + break;
> + }
> + sleep_time = SMS_HTONS(data[2], data[3]) * 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_dev->dev,
> + "%s: bit write Out of bounary\n",
> + __func__);
> + is_err = true;
> + break;
> + }
> + rc = tasdevice_dev_update_bits(tas_dev, 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_dev->dev,
> + "%s: update_bits error = %d\n",
> + __func__, rc);
> + }
> + subblk_offset += 6;
Why 2 spaces? (same in a few other places above)
> + break;
> + default:
> + break;
> + };
> + if (is_err == true && blktyp != 0) {
> + if (blktyp == 0x80) {
> + tas_dev->tasdevice[chn].cur_prog = -1;
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + } else
> + tas_dev->tasdevice[chn].cur_conf = -1;
> + }
> + }
> + return subblk_offset;
> +}
> +
> +static void tasdevice_select_cfg_blk(void *pContext, int conf_no,
> + unsigned char block_type)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) pContext;
> + struct tasdevice_rca *rca = &(tas_dev->rcabin);
> + struct tasdevice_config_info **cfg_info = rca->cfg_info;
> + int j, k, chn, chnend;
> +
> + if (conf_no >= rca->ncfgs || conf_no < 0 || !cfg_info) {
> + dev_err(tas_dev->dev,
> + "conf_no should be not more than %u\n",
> + rca->ncfgs);
> + goto out;
> + }
> +
> + 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_dev->dev,
> + "block_type should be in range from 2 to 5\n");
> + goto out;
> + }
> + if (block_type != cfg_info[conf_no]->blk_data[j]->block_type)
> + continue;
> +
> + for (k = 0; k < (int)cfg_info[conf_no]->blk_data[j]->n_subblks;
> + k++) {
> + if (cfg_info[conf_no]->blk_data[j]->dev_idx) {
> + chn =
> + cfg_info[conf_no]->blk_data[j]->dev_idx
> + - 1;
> + chnend =
> + cfg_info[conf_no]->blk_data[j]->dev_idx;
The lines above are a bit ugly :)
> + } else {
> + chn = 0;
> + chnend = tas_dev->ndev;
> + }
> + for (; chn < chnend; chn++)
> + tas_dev->tasdevice[chn].is_loading = true;
> +
> + rc = tasdevice_process_block(tas_dev,
> + cfg_info[conf_no]->blk_data[j]->regdata +
> + length,
> + cfg_info[conf_no]->blk_data[j]->dev_idx,
> + cfg_info[conf_no]->blk_data[j]->block_size -
> + length);
> + length += rc;
> + if (cfg_info[conf_no]->blk_data[j]->block_size <
> + length) {
> + dev_err(tas_dev->dev,
> + "%s: %u %u out of boundary\n",
> + __func__, length,
> + cfg_info[conf_no]->blk_data[j]
> + ->block_size);
> + break;
> + }
> + }
> + if (length != cfg_info[conf_no]->blk_data[j]->block_size)
> + dev_err(tas_dev->dev, "%s: %u %u size is not same\n",
> + __func__, length,
> + cfg_info[conf_no]->blk_data[j]->block_size);
> +
uneeded empty line
> + }
> +
> +out:
> + return;
> +}
> +
> +static struct tasdevice_config_info *tasdevice_add_config(
> + void *context, unsigned char *config_data,
> + unsigned int config_size)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *)context;
> + struct tasdevice_config_info *cfg_info;
> + int config_offset = 0;
> + int i;
> +
> + cfg_info = kzalloc(
> + sizeof(struct tasdevice_config_info), GFP_KERNEL);
> + if (!cfg_info)
> + goto out;
> +
> + if (tas_dev->rcabin.fw_hdr.binary_version_num >= 0x105) {
> + if (config_offset + 64 > (int)config_size) {
> + dev_err(tas_dev->dev, "add config: Out of bounary\n");
> + goto out;
Is the error handling strong enough?
In this case and all goto out below, we return a valid 'cfg_info'.
Is it safe and correctly handled later?
> + }
> + config_offset += 64;
> + }
> +
> + if (config_offset + 4 > (int)config_size) {
> + dev_err(tas_dev->dev, "add config: Out of bounary\n");
boundary? (here and in many other places)
> + goto out;
> + }
> + cfg_info->nblocks =
> + SMS_HTONL(config_data[config_offset],
> + config_data[config_offset + 1],
> + config_data[config_offset + 2], config_data[config_offset + 3]);
> + config_offset += 4;
> +
> + cfg_info->blk_data = kcalloc(
> + cfg_info->nblocks, sizeof(struct tasdev_blk_data *),
> + GFP_KERNEL);
> + if (!cfg_info->blk_data)
> + goto out;
> +
> + cfg_info->real_nblocks = 0;
> + for (i = 0; i < (int)cfg_info->nblocks; i++) {
> + if (config_offset + 12 > config_size) {
> + dev_err(tas_dev->dev,
> + "add config: Out of bounary: i = %d nblocks = %u!\n",
> + i, cfg_info->nblocks);
> + break;
> + }
> + cfg_info->blk_data[i] = kzalloc(
> + sizeof(struct tasdev_blk_data), GFP_KERNEL);
> + if (!cfg_info->blk_data[i])
> + break;
> +
> + cfg_info->blk_data[i]->dev_idx = config_data[config_offset];
> + config_offset++;
> +
> + cfg_info->blk_data[i]->block_type = config_data[config_offset];
> + config_offset++;
> +
> + if (cfg_info->blk_data[i]->block_type ==
> + TASDEVICE_BIN_BLK_PRE_POWER_UP) {
> + if (cfg_info->blk_data[i]->dev_idx == 0)
> + cfg_info->active_dev = 1;
> + else
> + cfg_info->active_dev =
> + 1 <<
> + (cfg_info->blk_data[i]->dev_idx - 1);
> +
> + }
> + cfg_info->blk_data[i]->yram_checksum =
> + SMS_HTONS(config_data[config_offset],
> + config_data[config_offset + 1]);
> + config_offset += 2;
> + cfg_info->blk_data[i]->block_size =
> + SMS_HTONL(config_data[config_offset],
> + config_data[config_offset + 1],
> + config_data[config_offset + 2],
> + config_data[config_offset + 3]);
> + config_offset += 4;
> +
> + cfg_info->blk_data[i]->n_subblks =
> + SMS_HTONL(config_data[config_offset],
> + config_data[config_offset + 1],
> + config_data[config_offset + 2],
> + config_data[config_offset + 3]);
> +
> + config_offset += 4;
> + cfg_info->blk_data[i]->regdata = kzalloc(
> + cfg_info->blk_data[i]->block_size, GFP_KERNEL);
> + if (!cfg_info->blk_data[i]->regdata)
> + goto out;
> +
> + if (config_offset + cfg_info->blk_data[i]->block_size
> + > config_size) {
> + dev_err(tas_dev->dev,
> + "%s: block_size Out of bounary: i = %d blks = %u!\n",
> + __func__, i, cfg_info->nblocks);
> + break;
> + }
> + memcpy(cfg_info->blk_data[i]->regdata,
> + &config_data[config_offset],
> + cfg_info->blk_data[i]->block_size);
> + config_offset += cfg_info->blk_data[i]->block_size;
> + cfg_info->real_nblocks += 1;
> + }
> +out:
> + return cfg_info;
> +}
> +
> +/**
> + * tas2781_digital_getvol - get the volum control
> + * @kcontrol: control pointer
> + * @ucontrol: User data
> + * Customer Kcontrol for tas2781 is primarily for regmap booking, paging
> + * depends on internal regmap mechanism.
> + * tas2781 contains book and page two-level register map, especially
> + * book switching will set the register BXXP00R7F, after switching to the
> + * correct book, then leverage the mechanism for paging to access the register.
> + */
> +static int tas2781_digital_getvol(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + struct soc_mixer_control *mc =
> + (struct soc_mixer_control *)kcontrol->private_value;
> + unsigned int invert = mc->invert;
> + int max = mc->max;
> + int ret = 0;
> + int val;
> +
> + /* Read the primary device as the whole */
> + ret = tasdevice_dev_read(tas_dev, 0, mc->reg, &val);
> + if (ret) {
> + dev_err(tas_dev->dev, "%s, get digital vol error\n", __func__);
> + goto out;
> + }
> +
> + if (val > max)
> + val = max;
> + if (invert)
> + val = max - val;
> + if (val < 0)
> + val = 0;
> + ucontrol->value.integer.value[0] = val;
> +
> +out:
> + return ret;
> +}
> +
> +static int tas2781_digital_putvol(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + struct soc_mixer_control *mc =
> + (struct soc_mixer_control *)kcontrol->private_value;
> + unsigned int invert = mc->invert;
> + int max = mc->max;
> + int err_cnt = 0;
> + int ret = 1;
> + int val, i;
> +
> + val = ucontrol->value.integer.value[0];
> + if (val > max)
> + val = max;
> + if (invert)
> + val = max - val;
> + if (val < 0)
> + val = 0;
> +
> + if (!tas_dev->set_global_mode) {
> + ret = tasdevice_dev_write(tas_dev, tas_dev->ndev,
> + mc->reg, (unsigned int)val);
> + if (ret)
> + dev_err(tas_dev->dev, "%s, error in global mode\n",
> + __func__);
> + }
> +
> + if (!tas_dev->set_global_mode || ret == 1) {
> + for (i = 0; i < tas_dev->ndev; i++) {
> + ret = tasdevice_dev_write(tas_dev, i, mc->reg,
> + (unsigned int)val);
> + if (ret) {
> + err_cnt++;
> + dev_err(tas_dev->dev,
> + "set digital vol err in dev %d\n", i);
> + }
> + }
> + }
> + /* All the devices set error, return 0*/
Space missing after 0
> + return (err_cnt == tas_dev->ndev) ? 0 : 1;
> +}
> +
> +static int tas2781_amp_getvol(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + struct soc_mixer_control *mc =
> + (struct soc_mixer_control *)kcontrol->private_value;
> + unsigned int invert = mc->invert;
> + unsigned char mask = 0;
> + int max = mc->max;
> + int ret = 0;
> + int val;
> +
> + /* Read the primary device */
> + ret = tasdevice_dev_read(tas_dev, 0, mc->reg, &val);
> + if (ret) {
> + dev_err(tas_dev->dev, "%s, get AMP vol error\n", __func__);
> + goto out;
> + }
> +
> + mask = (1 << fls(mc->max)) - 1;
> + mask <<= mc->shift;
> + val = (val & mask) >> mc->shift;
> + if (val > max)
> + val = max;
> + if (invert)
> + val = max - val;
> + if (val < 0)
> + val = 0;
> + ucontrol->value.integer.value[0] = val;
> +
> +out:
> + return ret;
> +}
> +
> +static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev =
> + snd_soc_component_get_drvdata(codec);
> + struct soc_mixer_control *mc =
> + (struct soc_mixer_control *)kcontrol->private_value;
> + unsigned int invert = mc->invert;
> + unsigned char mask;
> + int max = mc->max;
> + int err_cnt = 0;
> + int val, i, ret;
> +
> + mask = (1 << fls(mc->max)) - 1;
> + mask <<= mc->shift;
> + val = ucontrol->value.integer.value[0];
> + if (val > max)
> + val = max;
> + if (invert)
> + val = max - val;
> + if (val < 0)
> + val = 0;
> + for (i = 0; i < tas_dev->ndev; i++) {
> + ret = tasdevice_dev_update_bits(tas_dev, i,
> + mc->reg, mask, (unsigned int)(val << mc->shift));
> + if (ret) {
> + err_cnt++;
> + dev_err(tas_dev->dev, "set AMP vol error in dev %d\n",
> + i);
> + }
> + }
> +
> + /* All the devices set error, return 0*/
Space missing after 0
> + return (err_cnt == tas_dev->ndev) ? 0 : 1;
> +}
> +
> +static const DECLARE_TLV_DB_SCALE(dvc_tlv, -10000, 100, 0);
> +static const DECLARE_TLV_DB_SCALE(amp_vol_tlv, 1100, 50, 0);
> +
> +static const struct snd_kcontrol_new tas2781_snd_controls[] = {
> + SOC_SINGLE_RANGE_EXT_TLV("Amp Gain Volume", TAS2781_AMP_LEVEL,
> + 1, 0, 20, 0, tas2781_amp_getvol,
> + tas2781_amp_putvol, amp_vol_tlv),
> + SOC_SINGLE_RANGE_EXT_TLV("Digital Volume", TAS2781_DVC_LVL,
> + 0, 0, 200, 1, tas2781_digital_getvol,
> + tas2781_digital_putvol, dvc_tlv),
> +};
> +
> +static int tasdevice_set_profile_id(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> +
> + tas_dev->rcabin.profile_cfg_id =
> + ucontrol->value.integer.value[0];
> +
> + return 1;
> +}
> +
> +static int tasdevice_info_programs(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + struct tasdevice_fw *tas_fw = tas_dev->fmw;
> +
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 0;
> + uinfo->value.integer.max = (int)tas_fw->nr_programs;
> +
> + return 0;
> +}
> +
> +static int tasdevice_info_configurations(
> + struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
> +{
> + struct snd_soc_component *codec =
> + snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + struct tasdevice_fw *tas_fw = tas_dev->fmw;
> +
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 0;
> + uinfo->value.integer.max = (int)tas_fw->nr_configurations - 1;
> +
> + return 0;
> +}
> +
> +static int tasdevice_info_profile(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> +
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 1;
> + uinfo->value.integer.max = max(0, tas_dev->rcabin.ncfgs);
> +
> + return 0;
> +}
> +
> +static int tasdevice_get_profile_id(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> +
> + ucontrol->value.integer.value[0] =
> + tas_dev->rcabin.profile_cfg_id;
> +
> + return 0;
> +}
> +
> +static int tasdevice_create_controls(struct tasdevice_priv *tas_dev)
> +{
> + struct snd_kcontrol_new *tasdevice_profile_controls;
> + int nr_controls = 1;
> + int mix_index = 0;
> + int ret;
> + char *name;
> +
> + tasdevice_profile_controls = devm_kzalloc(tas_dev->dev,
> + nr_controls * sizeof(tasdevice_profile_controls[0]),
> + GFP_KERNEL);
> + if (!tasdevice_profile_controls) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + /* Create a mixer item for selecting the active profile */
> + name = devm_kzalloc(tas_dev->dev,
> + SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);
> + if (!name) {
> + ret = -ENOMEM;
> + goto out;
> + }
> + scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "TASDEVICE Profile id");
> + tasdevice_profile_controls[mix_index].name = name;
> + tasdevice_profile_controls[mix_index].iface =
> + SNDRV_CTL_ELEM_IFACE_MIXER;
> + tasdevice_profile_controls[mix_index].info =
> + tasdevice_info_profile;
> + tasdevice_profile_controls[mix_index].get =
> + tasdevice_get_profile_id;
> + tasdevice_profile_controls[mix_index].put =
> + tasdevice_set_profile_id;
> + mix_index++;
> +
> + ret = snd_soc_add_component_controls(tas_dev->codec,
> + tasdevice_profile_controls,
> + nr_controls < mix_index ? nr_controls : mix_index);
> +
> +out:
> + return ret;
> +}
> +
> +static int tasdevice_program_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tasdev = snd_soc_component_get_drvdata(codec);
> +
> + ucontrol->value.integer.value[0] = tasdev->cur_prog;
> +
> + return 0;
> +}
> +
> +static int tasdevice_program_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tasdev = snd_soc_component_get_drvdata(codec);
> + unsigned int nr_program = ucontrol->value.integer.value[0];
> +
> + tasdev->cur_prog = nr_program;
> +
> + return 1;
> +}
> +
> +static int tasdevice_configuration_get(
> + struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> +
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tasdev = snd_soc_component_get_drvdata(codec);
> +
> + ucontrol->value.integer.value[0] = tasdev->cur_conf;
> +
> + return 0;
> +}
> +
> +static int tasdevice_configuration_put(
> + struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + unsigned int nr_configuration = ucontrol->value.integer.value[0];
> +
> + tas_dev->cur_conf = nr_configuration;
> +
> + return 1;
> +}
> +
> +static int tasdevice_dsp_create_control(
> + struct tasdevice_priv *tas_dev)
> +{
> + struct snd_kcontrol_new *tasdevice_dsp_controls;
> + char *program_name, *configuration_name;
> + int nr_controls = 2;
> + int mix_index = 0;
> + int ret;
> +
> + tasdevice_dsp_controls = devm_kzalloc(tas_dev->dev,
> + nr_controls * sizeof(tasdevice_dsp_controls[0]), GFP_KERNEL);
kcalloc()?
> + if (!tasdevice_dsp_controls) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + /* Create a mixer item for selecting the active profile */
> + program_name = devm_kzalloc(tas_dev->dev,
> + SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);
> + configuration_name = devm_kzalloc(tas_dev->dev,
> + SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);
> + if (!program_name || !configuration_name) {
> + ret = -ENOMEM;
> + goto out;
> + }
> +
> + scnprintf(program_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "Program");
> + tasdevice_dsp_controls[mix_index].name = program_name;
> + tasdevice_dsp_controls[mix_index].iface =
> + SNDRV_CTL_ELEM_IFACE_MIXER;
> + tasdevice_dsp_controls[mix_index].info =
> + tasdevice_info_programs;
> + tasdevice_dsp_controls[mix_index].get =
> + tasdevice_program_get;
> + tasdevice_dsp_controls[mix_index].put =
> + tasdevice_program_put;
> + mix_index++;
> +
> + scnprintf(configuration_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
> + "Configuration");
> + tasdevice_dsp_controls[mix_index].name = configuration_name;
> + tasdevice_dsp_controls[mix_index].iface =
> + SNDRV_CTL_ELEM_IFACE_MIXER;
> + tasdevice_dsp_controls[mix_index].info =
> + tasdevice_info_configurations;
> + tasdevice_dsp_controls[mix_index].get =
> + tasdevice_configuration_get;
> + tasdevice_dsp_controls[mix_index].put =
> + tasdevice_configuration_put;
> + mix_index++;
> +
> + ret = snd_soc_add_component_controls(tas_dev->codec,
> + tasdevice_dsp_controls,
> + nr_controls < mix_index ? nr_controls : mix_index);
> +out:
> + return ret;
> +}
> +
> +static void tasdevice_rca_ready(const struct firmware *fmw,
> + void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *)context;
> + struct tasdevice_config_info **cfg_info = NULL;
> + struct tasdevice_rca_hdr *fw_hdr;
> + struct tasdevice_rca *rca;
> + const struct firmware *fw_entry;
> + unsigned int total_config_sz = 0;
> + unsigned char *buf;
> + int offset = 0;
> + int i, ret;
> +
> + mutex_lock(&tas_dev->codec_lock);
> + rca = &(tas_dev->rcabin);
> + fw_hdr = &(rca->fw_hdr);
> + if (!fmw || !fmw->data) {
> + dev_err(tas_dev->dev,
> + "Failed to read %s, no side - effect on driver running\n",
> + tas_dev->rca_binaryname);
Bad indentation.
> + ret = -EINVAL;
> + goto out;
> + }
> + buf = (unsigned char *)fmw->data;
> +
> + fw_hdr->img_sz = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + if (fw_hdr->img_sz != fmw->size) {
> + dev_err(tas_dev->dev,
> + "File size not match, %d %u", (int)fmw->size,
> + fw_hdr->img_sz);
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + fw_hdr->checksum = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + fw_hdr->binary_version_num = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + if (fw_hdr->binary_version_num < 0x103) {
> + dev_err(tas_dev->dev, "File version 0x%04x is too low",
> + fw_hdr->binary_version_num);
> + ret = -EINVAL;
> + goto out;
> + }
> + offset += 4;
> + fw_hdr->drv_fw_version = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + 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_dev->ndev) {
> + dev_err(tas_dev->dev,
> + "ndev(%u) fro rcabin and ndev(%u) fro DTS NOT match\n",
> + fw_hdr->ndev, tas_dev->ndev);
> + ret = -EINVAL;
> + goto out;
> + }
> + if (offset + TASDEVICE_DEVICE_SUM > fw_hdr->img_sz) {
> + dev_err(tas_dev->dev, "rca_ready: Out of bounary!\n");
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + for (i = 0; i < TASDEVICE_DEVICE_SUM; i++, offset++)
> + fw_hdr->devs[i] = buf[offset];
> +
> + fw_hdr->nconfig = SMS_HTONL(buf[offset], buf[offset + 1],
> + buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> +
> + for (i = 0; i < TASDEVICE_CONFIG_SUM; i++) {
> + fw_hdr->config_size[i] = SMS_HTONL(buf[offset],
> + buf[offset + 1], buf[offset + 2], buf[offset + 3]);
> + offset += 4;
> + total_config_sz += fw_hdr->config_size[i];
> + }
> +
> + if (fw_hdr->img_sz - total_config_sz != (unsigned int)offset) {
> + dev_err(tas_dev->dev, "Bin file error!\n");
> + ret = -EINVAL;
> + goto out;
> + }
> + cfg_info = kcalloc(fw_hdr->nconfig,
> + sizeof(struct tasdevice_config_info *),
sizeof(*cfg_info) would be less verbose.
I've *not* checked in details, but in case of error the kcalloc() seems
to me leaking in this function. (see the other kcalloc above)
> + GFP_KERNEL);
> +
> + if (!cfg_info) {
> + ret = -EINVAL;
> + goto out;
> + }
> + rca->cfg_info = cfg_info;
> + rca->ncfgs = 0;
> + for (i = 0; i < (int)fw_hdr->nconfig; i++) {
> + cfg_info[i] = tasdevice_add_config(context, &buf[offset],
> + fw_hdr->config_size[i]);
> + if (!cfg_info[i]) {
> + ret = -EINVAL;
> + break;
'ret' is overwritten a few lines below.
goto out; missing ? (see a few line above)
> + }
> + offset += (int)fw_hdr->config_size[i];
> + rca->ncfgs += 1;
> + }
> + tasdevice_create_controls(tas_dev);
> +
> + tasdevice_dsp_remove(tas_dev);
> + tasdevice_calbin_remove(tas_dev);
> + tas_dev->fw_state = TASDEVICE_DSP_FW_PENDING;
> + scnprintf(tas_dev->coef_binaryname, 64, "%s_coef.bin",
> + tas_dev->dev_name);
> + ret = request_firmware(&fw_entry, tas_dev->coef_binaryname,
> + tas_dev->dev);
> + if (!ret) {
Nit: If we test 'ret', the 2 {} blocks can be inverted and we can save 1
level of indentation
> + ret = tasdevice_dspfw_ready(fw_entry, tas_dev);
> + release_firmware(fw_entry);
> + fw_entry = NULL;
> + } else {
> + tas_dev->fw_state = TASDEVICE_DSP_FW_FAIL;
> + dev_err(tas_dev->dev, "%s: load %s error\n", __func__,
> + tas_dev->coef_binaryname);
> + goto out;
> + }
> + tasdevice_dsp_create_control(tas_dev);
> +
> + tas_dev->fw_state = TASDEVICE_DSP_FW_ALL_OK;
> + tas_dev->is_glb_calibrated_data_loaded = true;
> + for (i = 0; i < tas_dev->ndev; i++) {
> + scnprintf(tas_dev->cal_binaryname[i], 64, "%s_cal_0x%02x.bin",
> + tas_dev->dev_name, tas_dev->tasdevice[i].dev_addr);
> + ret = tas2781_load_calibration(tas_dev,
> + tas_dev->cal_binaryname[i], i);
> + if (ret != 0) {
> + dev_err(tas_dev->dev,
> + "%s: load %s error, no-side effect\n",
> + __func__, tas_dev->cal_binaryname[i]);
> + ret = 0;
Useless?
> + tas_dev->is_glb_calibrated_data_loaded = false;
> + }
> + }
> +
> +out:
> + mutex_unlock(&tas_dev->codec_lock);
> + if (fmw)
> + release_firmware(fmw);
> +}
> +
> +static void tasdevice_config_info_remove(void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> + struct tasdevice_rca *rca = &(tas_dev->rcabin);
> + struct tasdevice_config_info **cfg_info = rca->cfg_info;
> + int i, j;
In order, to reduce 2levels of indentation:
> +
> + if (cfg_info) {
if (!cfg_info)
return;
> + for (i = 0; i < rca->ncfgs; i++) {
> + if (cfg_info[i]) {
if (!cfg_info[i])
continue;
> + for (j = 0; j < (int)cfg_info[i]->real_nblocks;
> + j++) {
> + kfree(
> + cfg_info[i]->blk_data[j]->regdata);
> + kfree(cfg_info[i]->blk_data[j]);
> + }
> + kfree(cfg_info[i]->blk_data);
> + kfree(cfg_info[i]);
> + }
> + }
> + kfree(cfg_info);
> + }
> +}
> +
> +static void tasdevice_tuning_switch(
> + struct tasdevice_priv *tas_dev, int state)
> +{
> + struct tasdevice_fw *tas_fmw = tas_dev->fmw;
> + int profile_cfg_id = 0;
> +
> + if (state == 0) {
> + if (tas_fmw) {
> + if (tas_dev->cur_prog >= tas_fmw->nr_programs)
> + /*bypass all in rca is profile id 0*/
> + profile_cfg_id = RCA_CONFIGID_BYPASS_ALL;
> + else {
> + /*dsp mode or tuning mode*/
> + profile_cfg_id =
> + tas_dev->rcabin.profile_cfg_id;
> +
> + tasdevice_select_tuningprm_cfg(tas_dev,
> + tas_dev->cur_prog,
> + tas_dev->cur_conf,
> + profile_cfg_id);
> + if (tas_dev->set_global_mode)
> + tas_dev->set_global_mode(tas_dev);
> + }
> + } else
> + profile_cfg_id = RCA_CONFIGID_BYPASS_ALL;
> +
> + tasdevice_select_cfg_blk(tas_dev, profile_cfg_id,
> + TASDEVICE_BIN_BLK_PRE_POWER_UP);
> + } else
> + tasdevice_select_cfg_blk(tas_dev,
> + tas_dev->rcabin.profile_cfg_id,
> + TASDEVICE_BIN_BLK_PRE_SHUTDOWN);
> +}
> +
> +static int tasdevice_dapm_event(struct snd_soc_dapm_widget *w,
> + struct snd_kcontrol *kcontrol, int event)
> +{
> + struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + int state = 1;
> +
> + /* Codec Lock Hold */
> + mutex_lock(&tas_dev->codec_lock);
> + if (event == SND_SOC_DAPM_PRE_PMD)
> + state = 0;
> + tasdevice_tuning_switch(tas_dev, state);
> + /* Codec Lock Release*/
> + mutex_unlock(&tas_dev->codec_lock);
> +
> + return 0;
> +}
> +
> +static const struct snd_soc_dapm_widget tasdevice_dapm_widgets[] = {
> + SND_SOC_DAPM_AIF_IN("ASI", "ASI Playback", 0, SND_SOC_NOPM, 0, 0),
> + SND_SOC_DAPM_AIF_OUT_E("ASI OUT", "ASI Capture", 0, SND_SOC_NOPM,
> + 0, 0, tasdevice_dapm_event,
> + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
> + SND_SOC_DAPM_SPK("SPK", tasdevice_dapm_event),
> + SND_SOC_DAPM_OUTPUT("OUT"),
> + SND_SOC_DAPM_INPUT("DMIC")
> +};
> +
> +static const struct snd_soc_dapm_route tasdevice_audio_map[] = {
> + {"SPK", NULL, "ASI"},
> + {"OUT", NULL, "SPK"},
> + {"ASI OUT", NULL, "DMIC"}
> +};
> +
> +static int tasdevice_startup(struct snd_pcm_substream *substream,
> + struct snd_soc_dai *dai)
> +{
> + struct snd_soc_component *codec = dai->component;
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + int ret = 0;
> +
> + if (tas_dev->fw_state != TASDEVICE_DSP_FW_ALL_OK) {
> + dev_err(tas_dev->dev, "DSP bin file not loaded\n");
> + ret = -EINVAL;
> + }
> + return ret;
> +}
> +
> +static int tasdevice_hw_params(struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
> +{
> + struct tasdevice_priv *tas_dev = snd_soc_dai_get_drvdata(dai);
> + unsigned int slot_width;
> + unsigned int fsrate;
> + int bclk_rate;
> + int rc = 0;
> +
> + fsrate = params_rate(params);
> + switch (fsrate) {
> + case 48000:
> + break;
> + case 44100:
> + break;
Nit: Maybe removing some uneeded break to save some LoC?
> + default:
> + dev_err(tas_dev->dev, "%s: incorrect sample rate = %u\n",
> + __func__, fsrate);
> + rc = -EINVAL;
> + goto out;
> + }
> +
> + slot_width = params_width(params);
> + switch (slot_width) {
> + case 16:
> + break;
> + case 20:
> + break;
> + case 24:
> + break;
> + case 32:
> + break;
Nit: Maybe removing some uneeded break to s
> + default:
> + dev_err(tas_dev->dev, "%s: incorrect slot width = %u\n",
> + __func__, slot_width);
> + rc = -EINVAL;
> + goto out;
> + }
> +
> + bclk_rate = snd_soc_params_to_bclk(params);
> + if (bclk_rate < 0) {
> + dev_err(tas_dev->dev, "%s: incorrect bclk rate = %d\n",
> + __func__, bclk_rate);
> + rc = bclk_rate;
> + goto out;
> + }
> +out:
> + return rc;
> +}
> +
> +static int tasdevice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
> + int clk_id, unsigned int freq, int dir)
> +{
> + struct tasdevice_priv *tas_dev = snd_soc_dai_get_drvdata(codec_dai);
> +
> + tas_dev->sysclk = freq;
> +
> + return 0;
> +}
> +
> +static const struct snd_soc_dai_ops tasdevice_dai_ops = {
> + .startup = tasdevice_startup,
> + .hw_params = tasdevice_hw_params,
> + .set_sysclk = tasdevice_set_dai_sysclk,
> +};
> +
> +static struct snd_soc_dai_driver tasdevice_dai_driver[] = {
> + {
> + .name = "tas2781_codec",
> + .id = 0,
> + .playback = {
> + .stream_name = "Playback",
> + .channels_min = 1,
> + .channels_max = 4,
> + .rates = TASDEVICE_RATES,
> + .formats = TASDEVICE_FORMATS,
> + },
> + .capture = {
> + .stream_name = "Capture",
> + .channels_min = 1,
> + .channels_max = 4,
> + .rates = TASDEVICE_RATES,
> + .formats = TASDEVICE_FORMATS,
> + },
> + .ops = &tasdevice_dai_ops,
> + .symmetric_rate = 1,
> + },
> +};
> +
> +static void tas2781_reset(struct tasdevice_priv *tas_dev)
> +{
> + int ret, i;
> +
> + if (tas_dev->reset) {
> + gpiod_set_value_cansleep(tas_dev->reset, 0);
> + usleep_range(500, 1000);
> + gpiod_set_value_cansleep(tas_dev->reset, 1);
> + } else {
> +
> + for (i = 0; i < tas_dev->ndev; i++) {
> + ret = tasdevice_dev_write(tas_dev, i,
> + TAS2871_REG_SWRESET,
> + TAS2871_REG_SWRESET_RESET);
> + if (ret < 0)
> + dev_err(tas_dev->dev,
> + "dev %d swreset fail, %d\n",
> + i, ret);
> + }
> + }
> + usleep_range(1000, 1050);
> +}
> +
> +static int tasdevice_codec_probe(
> + struct snd_soc_component *codec)
> +{
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> + int ret;
> +
> + /* Codec Lock Hold to ensure that codec_probe and firmware parsing and
> + * loading do not simultaneously execute.
> + */
> + mutex_lock(&tas_dev->codec_lock);
> +
> + crc8_populate_msb(tas_dev->crc8_lkp_tbl, TASDEVICE_CRC8_POLYNOMIAL);
> + tas_dev->codec = codec;
> + scnprintf(tas_dev->rca_binaryname, 64, "%s_rca.bin",
> + tas_dev->dev_name);
> + ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
> + tas_dev->rca_binaryname, tas_dev->dev, GFP_KERNEL, tas_dev,
> + tasdevice_rca_ready);
> + if (ret)
> + dev_err(tas_dev->dev, "request_firmware_nowait err:0x%08x\n",
> + ret);
> +
> + tas2781_reset(tas_dev);
> + if (tas_dev->set_global_mode)
> + tas_dev->set_global_mode(tas_dev);
> +
> + /* Codec Lock Release*/
> + mutex_unlock(&tas_dev->codec_lock);
> +
> + return ret;
> +}
> +
> +static void tasdevice_deinit(void *context)
> +{
> + struct tasdevice_priv *tas_dev = (struct tasdevice_priv *) context;
> +
> + tasdevice_config_info_remove(tas_dev);
> + tasdevice_dsp_remove(tas_dev);
> + tasdevice_calbin_remove(tas_dev);
> + tas_dev->fw_state = TASDEVICE_DSP_FW_PENDING;
> +}
> +
> +static void tasdevice_codec_remove(
> + struct snd_soc_component *codec)
> +{
> + struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
> +
> + tasdevice_deinit(tas_dev);
> +
Nit: useless empty line
> +}
> +
> +static const struct snd_soc_component_driver
> + soc_codec_driver_tasdevice = {
> + .probe = tasdevice_codec_probe,
> + .remove = tasdevice_codec_remove,
> + .controls = tas2781_snd_controls,
> + .num_controls = ARRAY_SIZE(tas2781_snd_controls),
> + .dapm_widgets = tasdevice_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(tasdevice_dapm_widgets),
> + .dapm_routes = tasdevice_audio_map,
> + .num_dapm_routes = ARRAY_SIZE(tasdevice_audio_map),
> + .idle_bias_on = 1,
> + .endianness = 1,
> +};
> +
> +static int tasdevice_parse_dt(struct tasdevice_priv *tas_dev)
> +{
> + struct i2c_client *client = (struct i2c_client *)tas_dev->client;
> + unsigned int dev_addrs[max_chn];
> + int rc, i, ndev;
> +
> + if (tas_dev->isacpi) {
> + ndev = device_property_read_u32_array(&client->dev,
> + "ti,audio-slots", NULL, 0);
> + if (ndev <= 0) {
> + ndev = 1;
> + dev_addrs[0] = client->addr;
> + } else {
> + ndev = (ndev < ARRAY_SIZE(dev_addrs))
> + ? ndev : ARRAY_SIZE(dev_addrs);
> + ndev = device_property_read_u32_array(&client->dev,
> + "ti,audio-slots", dev_addrs, ndev);
> + }
> +
> + tas_dev->irq_info.irq_gpio =
> + acpi_dev_gpio_irq_get(ACPI_COMPANION(&client->dev), 0);
> + } else {
> + struct device_node *np = tas_dev->dev->of_node;
> +
> + ndev = of_property_read_variable_u32_array(np,
> + "ti,audio-slots", dev_addrs, 0, ARRAY_SIZE(dev_addrs));
> + if (ndev <= 0) {
> + ndev = 1;
> + dev_addrs[0] = client->addr;
> + }
> + tas_dev->irq_info.irq_gpio = of_irq_get(np, 0);
> + }
> + tas_dev->ndev = ndev;
> + for (i = 0; i < ndev; i++)
> + tas_dev->tasdevice[i].dev_addr = dev_addrs[i];
> +
> + if (ndev > 1) {
> + rc = device_property_read_u32(&client->dev,
> + "ti,broadcast-addr",
> + &(tas_dev->glb_addr.dev_addr));
> + if (rc) {
> + dev_err(tas_dev->dev,
> + "Looking up broadcast-addr failed %d\n", rc);
> + tas_dev->glb_addr.dev_addr = 0;
> + }
> + }
> +
> + tas_dev->reset = devm_gpiod_get_optional(&client->dev,
> + "reset-gpios", GPIOD_OUT_HIGH);
> + if (IS_ERR(tas_dev->reset))
> + dev_err(tas_dev->dev, "%s Can't get reset GPIO\n",
> + __func__);
> +
> + strcpy(tas_dev->dev_name, tasdevice_id[tas_dev->chip_id].name);
> +
> + if (gpio_is_valid(tas_dev->irq_info.irq_gpio)) {
> + rc = gpio_request(tas_dev->irq_info.irq_gpio,
> + "AUDEV-IRQ");
> + if (!rc) {
> + gpio_direction_input(
> + tas_dev->irq_info.irq_gpio);
> +
> + tas_dev->irq_info.irq =
> + gpio_to_irq(tas_dev->irq_info.irq_gpio);
> + } else
> + dev_err(tas_dev->dev, "%s: GPIO %d request error\n",
> + __func__, tas_dev->irq_info.irq_gpio);
> + } else
> + dev_err(tas_dev->dev,
> + "Looking up irq-gpio property failed %d\n",
> + tas_dev->irq_info.irq_gpio);
> +
> + return 0;
> +}
> +
> +static int tasdevice_change_chn_book(struct tasdevice_priv *tas_dev,
> + enum channel chn, int book)
> +{
> + struct i2c_client *client = (struct i2c_client *)tas_dev->client;
> + int ret = 0;
> +
> + if (chn < tas_dev->ndev) {
Sometimes this var is done with <, sometimes with <=
> + if (tas_dev->glb_addr.ref_cnt != 0) {
> + tas_dev->glb_addr.ref_cnt = 0;
> + tas_dev->glb_addr.cur_book = -1;
> + }
> + client->addr = tas_dev->tasdevice[chn].dev_addr;
> + if (tas_dev->tasdevice[chn].cur_book != book) {
> + ret = regmap_write(tas_dev->regmap,
> + TASDEVICE_BOOKCTL_REG, book);
> + if (ret < 0) {
> + dev_err(tas_dev->dev, "%s, E=%d\n",
> + __func__, ret);
> + goto out;
> + }
> + tas_dev->tasdevice[chn].cur_book = book;
> + }
> + } else if (chn == tas_dev->ndev) {
> + int i = 0;
Nit: useless init
> +
> + if (tas_dev->glb_addr.ref_cnt == 0)
> + for (i = 0; i < tas_dev->ndev; i++)
> + tas_dev->tasdevice[i].cur_book = -1;
> + client->addr = tas_dev->glb_addr.dev_addr;
> + if (tas_dev->glb_addr.cur_book != book) {
> + ret = regmap_write(tas_dev->regmap,
> + TASDEVICE_BOOKCTL_PAGE, 0);
> + if (ret < 0) {
> + dev_err(tas_dev->dev, "%s, E=%d\n",
> + __func__, ret);
> + goto out;
> + }
> + ret = regmap_write(tas_dev->regmap,
> + TASDEVICE_BOOKCTL_REG, book);
> + if (ret < 0) {
> + dev_err(tas_dev->dev, "%s, book%x, E=%d\n",
> + __func__, book, ret);
> + goto out;
> + }
> + tas_dev->glb_addr.cur_book = book;
> + }
> +
> + tas_dev->glb_addr.ref_cnt++;
> + } else
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
I don't know what is best, but in tasdevice_dev_update_bits() below, we
return -EINVAL in such a case.
> +
> +out:
> + return ret;
> +}
> +
> +int tasdevice_dev_read(struct tasdevice_priv *tas_dev,
> + enum channel chn, unsigned int reg, unsigned int *val)
> +{
> + int ret = 0;
> +
> + if (chn < tas_dev->ndev) {
> + ret = tasdevice_change_chn_book(tas_dev, chn,
> + TASDEVICE_BOOK_ID(reg));
> + if (ret < 0)
> + goto out;
> +
> + ret = regmap_read(tas_dev->regmap,
> + TASDEVICE_PGRG(reg), val);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "%s, E=%d\n", __func__, ret);
> + } else
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
Same.
> +
> +out:
> + return ret;
> +}
> +
> +int tasdevice_dev_write(struct tasdevice_priv *tas_dev,
> + enum channel chn, unsigned int reg, unsigned int value)
> +{
> + int ret = 0;
> +
> + if (chn <= tas_dev->ndev) {
> + ret = tasdevice_change_chn_book(tas_dev, chn,
> + TASDEVICE_BOOK_ID(reg));
> + if (ret < 0)
> + goto out;
> +
> + ret = regmap_write(tas_dev->regmap,
> + TASDEVICE_PGRG(reg), value);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "%s, E=%d\n",
> + __func__, ret);
> + } else
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
Same.
> +out:
> + return ret;
> +}
> +
> +int tasdevice_dev_bulk_write(
> + struct tasdevice_priv *tas_dev, enum channel chn,
> + unsigned int reg, unsigned char *data,
> + unsigned int len)
> +{
> + int ret = 0;
> +
> + if (chn <= tas_dev->ndev) {
> + ret = tasdevice_change_chn_book(tas_dev, chn,
> + TASDEVICE_BOOK_ID(reg));
> + if (ret < 0)
> + goto out;
> +
> + ret = regmap_bulk_write(tas_dev->regmap,
> + TASDEVICE_PGRG(reg), data, len);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "%s, E=%d\n", __func__,
> + ret);
> + } else
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
Same.
> +out:
> + return ret;
> +}
> +
> +int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_dev,
> + enum channel chn, unsigned int reg, unsigned char *data,
> + unsigned int len)
> +{
> + int ret = 0;
> +
> + if (chn < tas_dev->ndev) {
> + ret = tasdevice_change_chn_book(tas_dev, chn,
> + TASDEVICE_BOOK_ID(reg));
> + if (ret < 0)
> + goto out;
> +
> + ret = regmap_bulk_read(tas_dev->regmap,
> + TASDEVICE_PGRG(reg), data, len);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "%s, E=%d\n",
> + __func__, ret);
> + } else
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
> +
Same.
> +out:
> + return ret;
> +}
> +
> +int tasdevice_dev_update_bits(
> + struct tasdevice_priv *tas_dev, enum channel chn,
> + unsigned int reg, unsigned int mask, unsigned int value)
> +{
> + int ret = 0;
> + struct i2c_client *client =
> + (struct i2c_client *)tas_dev->client;
> +
> + if (chn < tas_dev->ndev) {
> + ret = tasdevice_change_chn_book(tas_dev, chn,
> + TASDEVICE_BOOK_ID(reg));
> + if (ret < 0)
> + goto out;
> + client->addr = tas_dev->tasdevice[chn].dev_addr;
> + ret = regmap_update_bits(tas_dev->regmap,
> + TASDEVICE_PGRG(reg), mask, value);
> + if (ret < 0)
> + dev_err(tas_dev->dev, "%s, E=%d\n", __func__, ret);
> + } else {
> + dev_err(tas_dev->dev, "%s, no such channel(%d)\n",
> + __func__, chn);
> + ret = -EINVAL;
> + }
> +
> +out:
> + return ret;
> +}
> +
> +static void tas2781_set_global_mode(struct tasdevice_priv *tas_dev)
> +{
> + int i = 0;
Nit: unusal. "i = 0" at the first param of the for loop below?
> + int ret = 0;
Nit: useless initialisation.
> +
> + for (; i < tas_dev->ndev; i++) {
> + ret = tasdevice_dev_update_bits(tas_dev, i,
> + TAS2871_MISC_CFG2, TAS2871_GLOBAL_ADDR_MASK,
> + TAS2871_GLOBAL_ADDR_ENABLE);
> + if (ret < 0) {
> + dev_err(tas_dev->dev, "%s: chn %d set glb fail, %d\n",
> + __func__, i, ret);
> + continue;
> + }
> + }
> +}
> +
> +static int tasdevice_init(struct tasdevice_priv *tas_dev)
> +{
> + int ret, i;
> +
> + tas_dev->cur_prog = -1;
> + tas_dev->cur_conf = -1;
> +
> + for (i = 0; i < tas_dev->ndev; i++) {
> + tas_dev->tasdevice[i].cur_book = -1;
> + tas_dev->tasdevice[i].cur_prog = -1;
> + tas_dev->tasdevice[i].cur_conf = -1;
> + }
> +
> + if (tas_dev->glb_addr.dev_addr != 0
> + && tas_dev->glb_addr.dev_addr < 0x7F)
> + tas_dev->set_global_mode = tas2781_set_global_mode;
> + dev_set_drvdata(tas_dev->dev, tas_dev);
> +
> + mutex_init(&tas_dev->codec_lock);
> + ret = devm_snd_soc_register_component(tas_dev->dev,
> + &soc_codec_driver_tasdevice,
> + tasdevice_dai_driver, ARRAY_SIZE(tasdevice_dai_driver));
> + if (ret) {
> + dev_err(tas_dev->dev, "%s: codec register error:0x%08x\n",
> + __func__, ret);
> + goto out;
> + }
> +
> +out:
> + return ret;
> +}
> +
> +static void tasdevice_remove(struct tasdevice_priv *tas_dev)
> +{
> + if (gpio_is_valid(tas_dev->irq_info.irq_gpio))
> + gpio_free(tas_dev->irq_info.irq_gpio);
> +
> + mutex_destroy(&tas_dev->codec_lock);
> +}
> +
> +static int tasdevice_i2c_probe(struct i2c_client *i2c)
> +{
> + const struct i2c_device_id *id = i2c_match_id(tasdevice_id, i2c);
> + const struct acpi_device_id *acpi_id;
> + struct tasdevice_priv *tas_dev;
> + int ret;
> +
> + tas_dev = devm_kzalloc(&i2c->dev, sizeof(*tas_dev), GFP_KERNEL);
> + if (!tas_dev) {
> + ret = -ENOMEM;
> + goto out;
> + }
Nit: return -ENOMEM;
and remove " && tas_dev" after the "out" label?
> +
> + if (ACPI_HANDLE(&i2c->dev)) {
> + acpi_id = acpi_match_device(i2c->dev.driver->acpi_match_table,
> + &i2c->dev);
> + if (!acpi_id) {
> + dev_err(&i2c->dev, "No driver data\n");
> + ret = -EINVAL;
> + goto out;
> + }
> + tas_dev->chip_id = acpi_id->driver_data;
> + tas_dev->isacpi = true;
> + } else {
> + tas_dev->chip_id = id ? id->driver_data : 0;
> + tas_dev->isacpi = false;
> + }
> +
> + tas_dev->dev = &i2c->dev;
> + tas_dev->client = (void *)i2c;
> +
> + ret = tasdevice_parse_dt(tas_dev);
Should tasdevice_parse_dt() return void? Or should it return an error
code in some cases + error handling here?
> +
> + tas_dev->regmap = devm_regmap_init_i2c(i2c,
> + &tasdevice_regmap);
> + if (IS_ERR(tas_dev->regmap)) {
> + ret = PTR_ERR(tas_dev->regmap);
> + dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
> + ret);
> + goto out;
> + }
> + ret = tasdevice_init(tas_dev);
> +
> +out:
> + if (ret < 0 && tas_dev)
> + tasdevice_remove(tas_dev);
> + return ret;
> +
Nit: Unneeded empty line.
> +}
> +
> +static void tasdevice_i2c_remove(struct i2c_client *client)
> +{
> + struct tasdevice_priv *tas_dev = i2c_get_clientdata(client);
> +
> + tasdevice_remove(tas_dev);
> +
Nit: Unneeded empty line.
> +}
> +
> +#ifdef CONFIG_ACPI
> +static const struct acpi_device_id tasdevice_acpi_match[] = {
> + { "TAS2781", TAS2781 },
> + {},
> +};
> +MODULE_DEVICE_TABLE(acpi, tasdevice_acpi_match);
> +#endif
> +
> +static struct i2c_driver tasdevice_i2c_driver = {
> + .driver = {
> + .name = "tas2781-codec",
> + .owner = THIS_MODULE,
> + .of_match_table = of_match_ptr(tasdevice_of_match),
> + .acpi_match_table = ACPI_PTR(tasdevice_acpi_match),
> + },
> + .probe = tasdevice_i2c_probe,
> + .remove = tasdevice_i2c_remove,
> + .id_table = tasdevice_id,
> +};
> +
> +module_i2c_driver(tasdevice_i2c_driver);
> +
> +MODULE_AUTHOR("Shenghao Ding <shenghao-ding@...com>");
> +MODULE_AUTHOR("Kevin Lu <kevin-lu@...com>");
> +MODULE_DESCRIPTION("ASoC TAS2781 Driver");
> +MODULE_LICENSE("GPL");
> diff --git a/sound/soc/codecs/tas2781.h b/sound/soc/codecs/tas2781.h
> new file mode 100644
> index 000000000000..d77ca85fc016
> --- /dev/null
> +++ b/sound/soc/codecs/tas2781.h
> @@ -0,0 +1,160 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +//
> +// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier
> +//
> +// Copyright (C) 2022 - 2023 Texas Instruments Incorporated
> +// https://www.ti.com
> +//
> +// The TAS2781 driver implements a flexible and configurable
> +// algo coefficient setting for one, two, or even multiple
> +// TAS2781 chips.
> +//
> +// Author: Shenghao Ding <shenghao-ding@...com>
> +// Author: Kevin Lu <kevin-lu@...com>
> +//
> +
> +#ifndef __TAS2781_H__
> +#define __TAS2781_H__
> +
> +#include "tas2781-dsp.h"
> +
> +#define TAS2781_DRV_VER 1 /* version number */
> +#define SMARTAMP_MODULE_NAME "tas2781"
> +#define TASDEVICE_RATES (SNDRV_PCM_RATE_44100 |\
> + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
> + SNDRV_PCM_RATE_88200)
> +#define TASDEVICE_MAX_CHANNELS 8
> +
> +#define TASDEVICE_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
> + SNDRV_PCM_FMTBIT_S24_LE | \
> + SNDRV_PCM_FMTBIT_S32_LE)
> +
> +/*PAGE Control Register (available in page0 of each book) */
> +#define TASDEVICE_PAGE_SELECT 0x00
> +#define TASDEVICE_BOOKCTL_PAGE 0x00
> +#define TASDEVICE_BOOKCTL_REG 127
> +#define TASDEVICE_BOOK_ID(reg) (reg / (256 * 128))
> +#define TASDEVICE_PAGE_ID(reg) ((reg % (256 * 128)) / 128)
> +#define TASDEVICE_PAGE_REG(reg) ((reg % (256 * 128)) % 128)
> +#define TASDEVICE_PGRG(reg) ((reg % (256 * 128)))
> +#define TASDEVICE_REG(book, page, reg) (((book * 256 * 128) + \
> + (page * 128)) + reg)
> +
> +/*Software Reset */
> +#define TAS2871_REG_SWRESET TASDEVICE_REG(0x0, 0X0, 0x02)
> +#define TAS2871_REG_SWRESET_RESET BIT(0)
> +
> +/* Enable Global addresses */
> +#define TAS2871_MISC_CFG2 TASDEVICE_REG(0x0, 0X0, 0x07)
> +#define TAS2871_GLOBAL_ADDR_MASK BIT(1)
> +#define TAS2871_GLOBAL_ADDR_ENABLE BIT(1)
> +
> +/*I2C Checksum */
> +#define TASDEVICE_I2CChecksum TASDEVICE_REG(0x0, 0x0, 0x7E)
> +
> +/* Volume control */
> +#define TAS2781_DVC_LVL TASDEVICE_REG(0x0, 0x0, 0x1A)
> +#define TAS2781_AMP_LEVEL TASDEVICE_REG(0x0, 0x0, 0x03)
> +#define TAS2781_AMP_LEVEL_MASK GENMASK(5, 1)
> +
> +#define TASDEVICE_CMD_SING_W 0x1
> +#define TASDEVICE_CMD_BURST 0x2
> +#define TASDEVICE_CMD_DELAY 0x3
> +#define TASDEVICE_CMD_FIELD_W 0x4
> +
> +enum audio_device {
> + TAS2781 = 0,
> +};
> +
> +#define SMS_HTONS(a, b) ((((a)&0x00FF)<<8) | ((b)&0x00FF))
> +#define SMS_HTONL(a, b, c, d) ((((a)&0x000000FF)<<24) | \
> + (((b)&0x000000FF)<<16) | (((c)&0x000000FF)<<8) | \
> + ((d)&0x000000FF))
> +
> +struct tasdevice {
> + struct tasdevice_fw *cali_data_fmw;
> + unsigned int dev_addr;
> + unsigned int err_code;
> + unsigned char cur_book;
> + short cur_prog;
> + short cur_conf;
> + bool is_loading;
> + bool is_loaderr;
> + bool is_calibrated_data_loaded;
> +};
> +
> +/*
> + * This item is used to store the generic i2c address of
> + * all the tas2781 devices for I2C broadcast during the multi-device
> + * writes, useless in mono case.
> + */
> +struct global_addr {
> + unsigned int dev_addr;
> + unsigned char cur_book;
> + int ref_cnt;
> +};
> +
> +struct tasdevice_irqinfo {
> + int irq_gpio;
> + int irq;
> +};
> +
> +struct tasdevice_priv {
> + struct device *dev;
> + struct regmap *regmap;
> + struct mutex codec_lock;
> + struct gpio_desc *reset;
> + struct tasdevice tasdevice[max_chn];
> + struct tasdevice_fw *fmw;
> + struct tasdevice_rca rcabin;
> + struct tasdevice_irqinfo irq_info;
> + struct global_addr glb_addr;
> + unsigned int chip_id;
> + unsigned int magic_num;
> + unsigned int sysclk;
> + unsigned char ndev;
> + unsigned char dev_name[32];
> + unsigned char rca_binaryname[64];
> + unsigned char coef_binaryname[64];
> + unsigned char cal_binaryname[max_chn][64];
> + unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
> + void *client;
> + void *codec;
> + bool is_glb_calibrated_data_loaded;
> + bool isacpi;
> + int cur_prog;
> + int cur_conf;
> + int fw_state;
> + void (*set_global_mode)(struct tasdevice_priv *tas_dev);
> + int (*fw_parse_variable_header)(struct tasdevice_priv *tas_dev,
> + const struct firmware *fmw, int offset);
> + int (*fw_parse_program_data)(struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw,
> + const struct firmware *fmw, int offset);
> + int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_dev,
> + struct tasdevice_fw *tas_fmw,
> + const struct firmware *fmw, int offset);
> + int (*tasdevice_load_block)(struct tasdevice_priv *tas_dev,
> + struct tasdev_blk *pBlock);
> +};
> +
> +int tasdevice_dev_read(struct tasdevice_priv *tasdevice,
> + enum channel chn, unsigned int reg, unsigned int *value);
> +int tasdevice_process_block(void *context,
> + unsigned char *data, unsigned char dev_idx, int sublocksize);
> +int tasdevice_dev_write(struct tasdevice_priv *tasdevice,
> + enum channel chn, unsigned int reg, unsigned int value);
> +
> +int tasdevice_dev_bulk_write(
> + struct tasdevice_priv *tasdevice, enum channel chn,
> + unsigned int reg, unsigned char *p_data, unsigned int n_length);
> +
> +int tasdevice_dev_bulk_read(struct tasdevice_priv *tasdevice,
> + enum channel chn, unsigned int reg, unsigned char *p_data,
> + unsigned int n_length);
> +
> +int tasdevice_dev_update_bits(
> + struct tasdevice_priv *tasdevice, enum channel chn,
> + unsigned int reg, unsigned int mask, unsigned int value);
> +
> +#endif /*__TAS2781_H__ */
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