Create tas2781 driver lib.
Signed-off-by: Shenghao Ding <[email protected]>
---
Changes in v1:
- create driver lib
Changes to be committed:
new file: include/sound/tas2781-dsp.h
new file: include/sound/tas2781.h
modified: sound/soc/codecs/Kconfig
modified: sound/soc/codecs/Makefile
new file: sound/soc/codecs/tas2781-lib.c
---
include/sound/tas2781-dsp.h | 187 ++++++++++++++
include/sound/tas2781.h | 168 ++++++++++++
sound/soc/codecs/Kconfig | 6 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/tas2781-lib.c | 455 +++++++++++++++++++++++++++++++++
5 files changed, 818 insertions(+)
create mode 100644 include/sound/tas2781-dsp.h
create mode 100644 include/sound/tas2781.h
create mode 100644 sound/soc/codecs/tas2781-lib.c
diff --git a/include/sound/tas2781-dsp.h b/include/sound/tas2781-dsp.h
new file mode 100644
index 000000000000..125cbba9298d
--- /dev/null
+++ b/include/sound/tas2781-dsp.h
@@ -0,0 +1,187 @@
+/* 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 <[email protected]>
+// Author: Kevin Lu <[email protected]>
+//
+
+#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;
+};
+
+void tasdevice_select_cfg_blk(void *context, int conf_no,
+ unsigned char block_type);
+void tasdevice_config_info_remove(void *context);
+void tasdevice_dsp_remove(void *context);
+int tasdevice_dsp_parser(void *context);
+int tasdevice_rca_parser(void *context, const struct firmware *fmw);
+void tasdevice_dsp_remove(void *context);
+void tasdevice_calbin_remove(void *context);
+int tasdevice_select_tuningprm_cfg(void *context, int prm,
+ int cfg_no, int rca_conf_no);
+int tasdevice_prmg_load(void *context, int prm_no);
+int tasdevice_prmg_calibdata_load(void *context, int prm_no);
+void tasdevice_tuning_switch(void *context, int state);
+
+#endif
diff --git a/include/sound/tas2781.h b/include/sound/tas2781.h
new file mode 100644
index 000000000000..ee3dd56f2084
--- /dev/null
+++ b/include/sound/tas2781.h
@@ -0,0 +1,168 @@
+/* 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 <[email protected]>
+// Author: Kevin Lu <[email protected]>
+//
+
+#ifndef __TAS2781_H__
+#define __TAS2781_H__
+
+#include <linux/kernel.h>
+#include "tas2781-dsp.h"
+
+/* version number */
+#define TAS2781_DRV_VER 1
+#define SMARTAMP_MODULE_NAME "tas2781"
+#define TAS2781_GLOBAL_ADDR 0x40
+#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 TAS2781_REG_SWRESET TASDEVICE_REG(0x0, 0X0, 0x02)
+#define TAS2781_REG_SWRESET_RESET BIT(0)
+
+/* Enable Global addresses */
+#define TAS2781_MISC_CFG2 TASDEVICE_REG(0x0, 0X0, 0x07)
+#define TAS2781_GLOBAL_ADDR_MASK BIT(1)
+#define TAS2781_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,
+};
+
+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 {
+ int ref_cnt;
+ unsigned int dev_addr;
+ unsigned char cur_book;
+};
+
+struct tasdevice_irqinfo {
+ int irq_gpio;
+ int irq;
+};
+
+struct calidata {
+ unsigned char *data;
+ unsigned long total_sz;
+};
+
+struct tasdevice_priv {
+ struct tasdevice tasdevice[max_chn];
+ struct tasdevice_irqinfo irq_info;
+ struct global_addr glb_addr;
+ struct tasdevice_rca rcabin;
+ struct tasdevice_fw *fmw;
+ struct regmap *regmap;
+ struct mutex codec_lock;
+ struct calidata cali_data;
+ struct gpio_desc *reset;
+ struct device *dev;
+ struct tm tm;
+
+ unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
+ unsigned char cal_binaryname[max_chn][64];
+ unsigned char coef_binaryname[64];
+ unsigned char rca_binaryname[64];
+ unsigned char dev_name[32];
+ unsigned char ndev;
+ unsigned int magic_num;
+ unsigned int chip_id;
+ unsigned int sysclk;
+ const char *acpi_subsystem_id;
+ int index;
+ int cur_prog;
+ int cur_conf;
+ int fw_state;
+ void *client;
+ void *codec;
+ bool isacpi;
+ void (*set_global_mode)(struct tasdevice_priv *tas_priv);
+ int (*fw_parse_variable_header)(struct tasdevice_priv *tas_priv,
+ const struct firmware *fmw, int offset);
+ int (*fw_parse_program_data)(struct tasdevice_priv *tas_priv,
+ struct tasdevice_fw *tas_fmw,
+ const struct firmware *fmw, int offset);
+ int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_priv,
+ struct tasdevice_fw *tas_fmw,
+ const struct firmware *fmw, int offset);
+ int (*tasdevice_load_block)(struct tasdevice_priv *tas_priv,
+ struct tasdev_blk *block);
+};
+
+int tas2781_load_calibration(void *context, char *file_name, enum channel i);
+int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
+ void (*cont)(const struct firmware *fw, void *context));
+struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c);
+int tasdevice_init(struct tasdevice_priv *tas_priv);
+void tasdevice_remove(struct tasdevice_priv *tas_priv);
+int tasdevice_dev_read(struct tasdevice_priv *tas_priv,
+ enum channel chn, unsigned int reg, unsigned int *value);
+int tasdevice_dev_write(struct tasdevice_priv *tas_priv,
+ enum channel chn, unsigned int reg, unsigned int value);
+int tasdevice_dev_bulk_write(
+ struct tasdevice_priv *tas_priv, enum channel chn,
+ unsigned int reg, unsigned char *p_data, unsigned int n_length);
+int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_priv,
+ 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__ */
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 79d2362ad055..c899b18e423a 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -234,6 +234,7 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_TAS2764
imply SND_SOC_TAS2770
imply SND_SOC_TAS2780
+ imply SND_SOC_TAS2781_LIB
imply SND_SOC_TAS5086
imply SND_SOC_TAS571X
imply SND_SOC_TAS5720
@@ -1699,6 +1700,11 @@ config SND_SOC_TAS2780
Enable support for Texas Instruments TAS2780 high-efficiency
digital input mono Class-D audio power amplifiers.
+config SND_SOC_TAS2781_LIB
+ select CRC8
+ select REGMAP_I2C
+ tristate
+
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 5cdbae88e6e3..3f58a5df8120 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -269,6 +269,7 @@ 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-lib-objs := tas2781-lib.o
snd-soc-tfa9879-objs := tfa9879.o
snd-soc-tfa989x-objs := tfa989x.o
snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o
@@ -633,6 +634,7 @@ 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-$(CONFIG_SND_SOC_TAS2781_LIB) += snd-soc-tas2781-lib.o
obj-$(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-lib.c b/sound/soc/codecs/tas2781-lib.c
new file mode 100644
index 000000000000..1d843bc6c42e
--- /dev/null
+++ b/sound/soc/codecs/tas2781-lib.c
@@ -0,0 +1,455 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// tas2781-lib.c -- TAS2781 Common functions for HDA and ASoC Audio drivers
+//
+// Copyright 2023 Texas Instruments, Inc.
+//
+// Author: Shenghao Ding <[email protected]>
+
+#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/regmap.h>
+#include <linux/slab.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tas2781.h>
+#include <sound/tlv.h>
+
+#define TASDEVICE_CRC8_POLYNOMIAL 0x4d
+
+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 int tasdevice_change_chn_book(struct tasdevice_priv *tas_priv,
+ enum channel chn, int book)
+{
+ struct i2c_client *client = (struct i2c_client *)tas_priv->client;
+ int ret = 0;
+ int i;
+
+ if (chn < tas_priv->ndev) {
+ struct tasdevice *tasdev = &tas_priv->tasdevice[chn];
+
+ if (tas_priv->glb_addr.ref_cnt != 0) {
+ tas_priv->glb_addr.ref_cnt = 0;
+ tas_priv->glb_addr.cur_book = -1;
+ }
+ client->addr = tasdev->dev_addr;
+ if (tasdev->cur_book != book) {
+ ret = regmap_write(tas_priv->regmap,
+ TASDEVICE_BOOKCTL_REG, book);
+ if (ret < 0) {
+ dev_err(tas_priv->dev, "%s, E=%d\n",
+ __func__, ret);
+ goto out;
+ }
+ tasdev->cur_book = book;
+ }
+ } else if (chn == tas_priv->ndev) {
+ struct global_addr *glb_addr = &tas_priv->glb_addr;
+
+ /* Chn == device number will enable global broadcast mode*/
+ if (tas_priv->glb_addr.ref_cnt == 0)
+ for (i = 0; i < tas_priv->ndev; i++)
+ tas_priv->tasdevice[i].cur_book = -1;
+ client->addr = glb_addr->dev_addr;
+ if (glb_addr->cur_book != book) {
+ ret = regmap_write(tas_priv->regmap,
+ TASDEVICE_BOOKCTL_REG, book);
+ if (ret < 0) {
+ dev_err(tas_priv->dev, "%s, book%x, E=%d\n",
+ __func__, book, ret);
+ goto out;
+ }
+ glb_addr->cur_book = book;
+ }
+
+ glb_addr->ref_cnt++;
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+
+int tasdevice_dev_read(struct tasdevice_priv *tas_priv,
+ enum channel chn, unsigned int reg, unsigned int *val)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_read(tas_priv->regmap, TASDEVICE_PGRG(reg), val);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_read);
+
+int tasdevice_dev_write(struct tasdevice_priv *tas_priv,
+ enum channel chn, unsigned int reg, unsigned int value)
+{
+ int ret = 0;
+
+ /* chn <= tas_dev->ndev will support global broadcast mode*/
+ if (chn <= tas_priv->ndev) {
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_write(tas_priv->regmap, TASDEVICE_PGRG(reg),
+ value);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_write);
+
+int tasdevice_dev_bulk_write(
+ struct tasdevice_priv *tas_priv, enum channel chn,
+ unsigned int reg, unsigned char *data,
+ unsigned int len)
+{
+ int ret = 0;
+
+ /* chn <= tas_dev->ndev will support global broadcast mode*/
+ if (chn <= tas_priv->ndev) {
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_bulk_write(tas_priv->regmap, TASDEVICE_PGRG(reg),
+ data, len);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ ret = -EINVAL;
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_bulk_write);
+
+int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_priv,
+ enum channel chn, unsigned int reg, unsigned char *data,
+ unsigned int len)
+{
+ int ret = 0;
+
+ if (chn < tas_priv->ndev) {
+ ret = tasdevice_change_chn_book(tas_priv, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_bulk_read(tas_priv->regmap, TASDEVICE_PGRG(reg),
+ data, len);
+ if (ret < 0)
+ dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret);
+ } else
+ dev_err(tas_priv->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_bulk_read);
+
+int tasdevice_dev_update_bits(
+ struct tasdevice_priv *tasdev, enum channel chn,
+ unsigned int reg, unsigned int mask, unsigned int value)
+{
+ int ret = 0;
+
+ /* update-bits can't support global broadcast mode,
+ * because this operation contains a reading operation
+ * for register value. In global mode, reading register
+ * from all of the tas2781 will cause confusion.
+ */
+ if (chn < tasdev->ndev) {
+ ret = tasdevice_change_chn_book(tasdev, chn,
+ TASDEVICE_BOOK_ID(reg));
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_update_bits(tasdev->regmap,
+ TASDEVICE_PGRG(reg), mask, value);
+ if (ret < 0)
+ dev_err(tasdev->dev, "%s, E=%d\n", __func__, ret);
+ } else {
+ dev_err(tasdev->dev, "%s, no such channel(%d)\n", __func__,
+ chn);
+ ret = -EINVAL;
+ }
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dev_update_bits);
+
+/* Only register write and bulk write support global mode
+ * Other cases, such as bits update, register read and bulk
+ * only support device-by-device operation
+ */
+static void tas2781_set_global_mode(struct tasdevice_priv *tas_dev)
+{
+ int i, ret;
+
+ for (i = 0; i < tas_dev->ndev; i++) {
+ ret = tasdevice_dev_update_bits(tas_dev, i,
+ TAS2781_MISC_CFG2, TAS2781_GLOBAL_ADDR_MASK,
+ TAS2781_GLOBAL_ADDR_ENABLE);
+ if (ret < 0) {
+ dev_err(tas_dev->dev, "%s: chn %d set glb fail, %d\n",
+ __func__, i, ret);
+ continue;
+ }
+ }
+}
+
+struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c)
+{
+ struct tasdevice_priv *tas_priv;
+
+ tas_priv = devm_kzalloc(&i2c->dev, sizeof(*tas_priv), GFP_KERNEL);
+ if (!tas_priv)
+ return NULL;
+ tas_priv->dev = &i2c->dev;
+ tas_priv->client = (void *)i2c;
+
+ return tas_priv;
+}
+EXPORT_SYMBOL_GPL(tasdevice_kzalloc);
+
+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,
+ TAS2781_REG_SWRESET,
+ TAS2781_REG_SWRESET_RESET);
+ if (ret < 0)
+ dev_err(tas_dev->dev,
+ "dev %d swreset fail, %d\n",
+ i, ret);
+ }
+ }
+ usleep_range(1000, 1050);
+}
+
+int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
+ void (*cont)(const struct firmware *fw, void *context))
+{
+ int ret = 0;
+
+ /* Codec Lock Hold to ensure that codec_probe and firmware parsing and
+ * loading do not simultaneously execute.
+ */
+ mutex_lock(&tas_priv->codec_lock);
+
+ scnprintf(tas_priv->rca_binaryname, 64, "%s_rca.bin",
+ tas_priv->dev_name);
+ crc8_populate_msb(tas_priv->crc8_lkp_tbl, TASDEVICE_CRC8_POLYNOMIAL);
+ tas_priv->codec = codec;
+ ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
+ tas_priv->rca_binaryname, tas_priv->dev, GFP_KERNEL, tas_priv,
+ cont);
+ if (ret)
+ dev_err(tas_priv->dev, "request_firmware_nowait err:0x%08x\n",
+ ret);
+
+ tas2781_reset(tas_priv);
+ if (tas_priv->set_global_mode)
+ tas_priv->set_global_mode(tas_priv);
+
+ /* Codec Lock Release*/
+ mutex_unlock(&tas_priv->codec_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tascodec_init);
+
+int tasdevice_init(struct tasdevice_priv *tas_priv)
+{
+ int ret = 0;
+ int i;
+
+ tas_priv->regmap = devm_regmap_init_i2c(tas_priv->client,
+ &tasdevice_regmap);
+ if (IS_ERR(tas_priv->regmap)) {
+ ret = PTR_ERR(tas_priv->regmap);
+ dev_err(tas_priv->dev, "Failed to allocate register map: %d\n",
+ ret);
+ goto out;
+ }
+
+ tas_priv->cur_prog = -1;
+ tas_priv->cur_conf = -1;
+
+ for (i = 0; i < tas_priv->ndev; i++) {
+ tas_priv->tasdevice[i].cur_book = -1;
+ tas_priv->tasdevice[i].cur_prog = -1;
+ tas_priv->tasdevice[i].cur_conf = -1;
+ }
+
+ if (tas_priv->glb_addr.dev_addr != 0
+ && tas_priv->glb_addr.dev_addr < 0x7F)
+ tas_priv->set_global_mode = tas2781_set_global_mode;
+ dev_set_drvdata(tas_priv->dev, tas_priv);
+
+ mutex_init(&tas_priv->codec_lock);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tasdevice_init);
+
+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)
+ return;
+
+ 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;
+ struct tasdevice_fw *tas_fmw = tas_dev->fmw;
+
+ if (!tas_dev->fmw)
+ return;
+
+ 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;
+}
+EXPORT_SYMBOL_GPL(tasdevice_dsp_remove);
+
+void tasdevice_remove(struct tasdevice_priv *tas_priv)
+{
+ if (gpio_is_valid(tas_priv->irq_info.irq_gpio))
+ gpio_free(tas_priv->irq_info.irq_gpio);
+ kfree(tas_priv->acpi_subsystem_id);
+ mutex_destroy(&tas_priv->codec_lock);
+}
+EXPORT_SYMBOL_GPL(tasdevice_remove);
+
+MODULE_DESCRIPTION("TAS2781 library");
+MODULE_AUTHOR("Shenghao Ding, TI, <[email protected]>");
+MODULE_LICENSE("GPL");
--
2.34.1
On Sat, Apr 29, 2023 at 11:23:02AM +0800, Shenghao Ding wrote:
> Create tas2781 driver lib.
>
> Signed-off-by: Shenghao Ding <[email protected]>
As previously and repatedly advised new DT bindings need to documented,
you should be sending the bindings and driver together as a patch
series. Look at how other drivers that add bindings are submitted.