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Message-ID: <20240605091143.163789-6-wangshuaijie@awinic.com>
Date: Wed, 5 Jun 2024 09:11:43 +0000
From: wangshuaijie@...nic.com
To: dmitry.torokhov@...il.com,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
jeff@...undy.com,
linux-input@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: wangshuaijie@...nic.com,
liweilei@...nic.com,
kangjiajun@...nic.com
Subject: [PATCH V2 5/5] Add support for Awinic sar sensor.
From: shuaijie wang <wangshuaijie@...nic.com>
Signed-off-by: shuaijie wang <wangshuaijie@...nic.com>
| Reported-by: kernel test robot <lkp@...el.com>
| Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
| Reported-by: Dan Carpenter <error27@...il.com>
---
drivers/input/misc/Kconfig | 9 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/aw_sar/Makefile | 2 +
drivers/input/misc/aw_sar/aw_sar.c | 2036 ++++++++++++++++++++++++++++
drivers/input/misc/aw_sar/aw_sar.h | 15 +
5 files changed, 2063 insertions(+)
create mode 100644 drivers/input/misc/aw_sar/Makefile
create mode 100644 drivers/input/misc/aw_sar/aw_sar.c
create mode 100644 drivers/input/misc/aw_sar/aw_sar.h
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 6ba984d7f0b1..ac56fdd21839 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -939,4 +939,13 @@ config INPUT_STPMIC1_ONKEY
To compile this driver as a module, choose M here: the
module will be called stpmic1_onkey.
+config AWINIC_SAR
+ tristate "Awinic sar sensor support"
+ depends on I2C
+ help
+ Say Y to enable support for the Awinic sar sensor driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called awinic_sar.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 04296a4abe8e..6ee1870ea677 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -90,3 +90,4 @@ obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
obj-$(CONFIG_INPUT_YEALINK) += yealink.o
obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR) += ideapad_slidebar.o
+obj-$(CONFIG_AWINIC_SAR) += aw_sar/
diff --git a/drivers/input/misc/aw_sar/Makefile b/drivers/input/misc/aw_sar/Makefile
new file mode 100644
index 000000000000..c357ecaa4f98
--- /dev/null
+++ b/drivers/input/misc/aw_sar/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_AWINIC_SAR) += awinic_sar.o
+awinic_sar-objs := ./comm/aw_sar_comm_interface.o aw_sar.o ./aw9610x/aw9610x.o ./aw963xx/aw963xx.o
diff --git a/drivers/input/misc/aw_sar/aw_sar.c b/drivers/input/misc/aw_sar/aw_sar.c
new file mode 100644
index 000000000000..ab89fed65a6a
--- /dev/null
+++ b/drivers/input/misc/aw_sar/aw_sar.c
@@ -0,0 +1,2036 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AWINIC sar sensor driver
+ *
+ * Author: Shuaijie Wang<wangshuaijie@...nic.com>
+ *
+ * Copyright (c) 2024 awinic Technology CO., LTD
+ */
+#include "./comm/aw_sar_chip_interface.h"
+#include "aw_sar.h"
+
+#define AW_SAR_I2C_NAME "awinic_sar"
+
+/*
+ * Please check which power_supply on your platform
+ * can get the charger insertion information, then select it.
+ * eg: "usb"/"charger"/"mtk-master-charger"/"mtk_charger_type"
+ */
+#define USB_POWER_SUPPLY_NAME "charger"
+/*
+ * Check which of your power_supply properties is available
+ * for the charger insertion information and select it.
+ * eg: POWER_SUPPLY_PROP_ONLINE/POWER_SUPPLY_PROP_PRESENT
+ */
+#define AW_USB_PROP_ONLINE POWER_SUPPLY_PROP_ONLINE
+
+#define AW_I2C_RW_RETRY_TIME_MIN (2000)
+#define AW_I2C_RW_RETRY_TIME_MAX (3000)
+#define AW_RETRIES (5)
+
+#define AW_SAR_AWRW_OffSET (20)
+#define AW_SAR_AWRW_DATA_WIDTH (5)
+#define AW_DATA_OffSET_2 (2)
+#define AW_DATA_OffSET_3 (3)
+#define AW_POWER_ON_SYSFS_DELAY_MS (5000)
+#define AW_SAR_MONITOR_ESD_DELAY_MS (5000)
+#define AW_SAR_OFFSET_LEN (15)
+#define AW_SAR_VCC_MIN_UV (1700000)
+#define AW_SAR_VCC_MAX_UV (3600000)
+
+static struct mutex aw_sar_lock;
+
+static int32_t aw_sar_get_chip_info(struct aw_sar *p_sar);
+static void aw_sar_sensor_free(struct aw_sar *p_sar);
+
+//Because disable/enable_irq api Therefore, IRQ is embedded
+void aw_sar_disable_irq(struct aw_sar *p_sar)
+{
+ if (p_sar->irq_init.host_irq_stat == IRQ_ENABLE) {
+ disable_irq(p_sar->irq_init.to_irq);
+ p_sar->irq_init.host_irq_stat = IRQ_DISABLE;
+ }
+}
+
+void aw_sar_enable_irq(struct aw_sar *p_sar)
+{
+ if (p_sar->irq_init.host_irq_stat == IRQ_DISABLE) {
+ enable_irq(p_sar->irq_init.to_irq);
+ p_sar->irq_init.host_irq_stat = IRQ_ENABLE;
+ }
+}
+
+//Chip logic part start
+//Load default array function
+static int32_t
+aw_sar_para_loaded_func(struct i2c_client *i2c, const struct aw_sar_para_load_t *para_load)
+{
+ int32_t ret;
+ int32_t i;
+
+ for (i = 0; i < para_load->reg_arr_len; i = i + 2) {
+ ret = aw_sar_i2c_write(i2c, (uint16_t)para_load->reg_arr[i],
+ para_load->reg_arr[i + 1]);
+ if (ret != 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+//Mode setting function
+static void aw_sar_mode_set_func(struct i2c_client *i2c, int to_irq,
+ struct aw_sar_mode_set_t *mode_set_para,
+ const struct aw_sar_mode_set_t *mode_set, uint8_t len)
+{
+ uint8_t i;
+
+ for (i = 0; i < len; i++) {
+ if ((mode_set[i].chip_mode.curr_mode == mode_set_para->chip_mode.curr_mode) &&
+ (mode_set[i].chip_mode.last_mode == mode_set_para->chip_mode.last_mode) &&
+ ((mode_set[i].chip_id == AW_SAR_NONE_CHECK_CHIP) ||
+ ((mode_set[i].chip_id & mode_set_para->chip_id) != 0))) {
+ if (mode_set[i].mode_switch_ops.enable_clock != NULL)
+ mode_set[i].mode_switch_ops.enable_clock(i2c);
+ if (mode_set[i].mode_switch_ops.rc_irqscr != NULL)
+ mode_set[i].mode_switch_ops.rc_irqscr(i2c);
+ if (mode_set[i].mode_switch_ops.mode_update != NULL)
+ mode_set[i].mode_switch_ops.mode_update(i2c);
+ break;
+ }
+ }
+}
+
+static int32_t aw_sar_check_init_over_irq_func(struct i2c_client *i2c,
+ const struct aw_sar_init_over_irq_t *p_check_irq)
+{
+ int16_t cnt = p_check_irq->wait_times;
+ uint32_t irq_stat;
+ int32_t ret;
+
+ do {
+ ret = aw_sar_i2c_read(i2c, p_check_irq->reg_irqsrc, &irq_stat);
+ if (ret < 0)
+ return ret;
+ if (((irq_stat >> p_check_irq->irq_offset_bit) & p_check_irq->irq_mask) ==
+ p_check_irq->irq_flag)
+ return 0;
+ mdelay(1);
+ } while (cnt--);
+
+ if (cnt < 0)
+ dev_err(&i2c->dev, "init over irq error!");
+
+ return AW_ERR_IRQ_INIT_OVER;
+}
+
+static int32_t
+aw_sar_soft_reset_func(struct i2c_client *i2c, const struct aw_sar_soft_rst_t *p_soft_rst)
+{
+ int32_t ret;
+
+ ret = aw_sar_i2c_write(i2c, p_soft_rst->reg_rst, p_soft_rst->reg_rst_val);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "soft_reset error: %d", ret);
+ return ret;
+ }
+
+ msleep(p_soft_rst->delay_ms);
+
+ return 0;
+}
+//Chip logic part end
+
+static int32_t aw_sar_parse_bin(const struct firmware *cont, struct aw_sar *p_sar)
+{
+ enum aw_bin_err_val bin_ret;
+ struct aw_bin *aw_bin;
+ int32_t ret;
+
+ if (!cont) {
+ dev_err(p_sar->dev, "def_reg_bin request error!");
+ return -EINVAL;
+ }
+
+ dev_dbg(p_sar->dev, "Bin file size: %d", (uint32_t)cont->size);
+
+ aw_bin = devm_kzalloc(p_sar->dev, cont->size + sizeof(struct aw_bin), GFP_KERNEL);
+ if (!aw_bin) {
+ release_firmware(cont);
+ dev_err(p_sar->dev, "failed to allcating memory!");
+ return -ENOMEM;
+ }
+
+ aw_bin->info.len = cont->size;
+ memcpy(aw_bin->info.data, cont->data, cont->size);
+
+ bin_ret = aw_sar_parsing_bin_file(aw_bin);
+ if (bin_ret < 0) {
+ dev_err(p_sar->dev, "parse bin fail! bin_ret = %d", bin_ret);
+ goto err;
+ }
+
+ //Write bin file execution process
+ if (p_sar->load_bin.bin_opera_func != NULL) {
+ ret = p_sar->load_bin.bin_opera_func(aw_bin, p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "load_bin_to_chip error!");
+ if (p_sar->load_bin.bin_load_fail_opera_func != NULL) {
+ ret = p_sar->load_bin.bin_load_fail_opera_func(aw_bin, p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "bin_load_fail_opera_func error!");
+ goto err;
+ }
+ } else {
+ goto err;
+ }
+ }
+ } else {
+ dev_err(p_sar->dev, "bin_opera_func is null error!");
+ }
+
+ if (aw_bin != NULL)
+ devm_kfree(p_sar->dev, aw_bin);
+
+ return 0;
+err:
+ if (aw_bin != NULL)
+ devm_kfree(p_sar->dev, aw_bin);
+
+ return -EINVAL;
+}
+
+static int32_t aw_sar_load_bin_comm(struct aw_sar *p_sar)
+{
+ const struct firmware *fw;
+ int32_t ret;
+
+ ret = request_firmware(&fw, p_sar->load_bin.bin_name, p_sar->dev);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "parse %s error!", p_sar->load_bin.bin_name);
+ return ret;
+ }
+
+ ret = aw_sar_parse_bin(fw, p_sar);
+ if (ret != 0)
+ dev_err(p_sar->dev, "reg_bin %s load error!", p_sar->load_bin.bin_name);
+ release_firmware(fw);
+
+ return ret;
+}
+
+static int32_t aw_sar_parse_dts_comm(struct device *dev, struct device_node *np,
+ struct aw_sar_dts_info *p_dts_info)
+{
+ int32_t val;
+
+ val = of_property_read_u32(np, "awinic,sar-label", &p_dts_info->sar_num);
+ dev_info(dev, "sar label = %d", p_dts_info->sar_num);
+ if (val != 0) {
+ dev_err(dev, "multiple sar failed!");
+ return -EINVAL;
+ }
+
+ p_dts_info->irq_gpio = of_get_named_gpio(np, "irq-gpio", 0);
+ if (p_dts_info->irq_gpio < 0) {
+ p_dts_info->irq_gpio = -1;
+ dev_err(dev, "no irq gpio provided.");
+ return -EINVAL;
+ }
+
+ val = of_property_read_u32(np, "awinic,channel-use-mask", &p_dts_info->channel_use_flag);
+ if (val != 0) {
+ dev_err(dev, "channel_use_flag failed!");
+ return -EINVAL;
+ }
+
+ //GPIO is set as internal pull-up input
+ p_dts_info->use_inter_pull_up = of_property_read_bool(np, "awinic,pin-set-inter-pull-up");
+ p_dts_info->use_pm = of_property_read_bool(np, "awinic,using-pm-ops");
+ p_dts_info->update_fw_flag = of_property_read_bool(np, "awinic,update-fw");
+ p_dts_info->use_plug_cail_flag = of_property_read_bool(np, "awinic,use-plug-cail");
+ p_dts_info->monitor_esd_flag = of_property_read_bool(np, "awinic,monitor-esd");
+
+ return 0;
+}
+
+static int32_t aw_sar_parse_dts(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ ret = aw_sar_parse_dts_comm(p_sar->dev, p_sar->i2c->dev.of_node, &p_sar->dts_info);
+
+ //Special requirements of SAR chip
+ if (p_sar->p_sar_para->p_platform_config->p_add_parse_dts_fn != NULL)
+ ret |= p_sar->p_sar_para->p_platform_config->p_add_parse_dts_fn(p_sar);
+
+ return ret;
+}
+
+static irqreturn_t aw_sar_irq(int32_t irq, void *data)
+{
+ struct aw_sar *p_sar = (struct aw_sar *)data;
+ uint32_t irq_status = 0;
+
+ //step1: read clear interrupt
+ if (p_sar->p_sar_para->p_platform_config->p_irq_init->rc_irq_fn != NULL)
+ irq_status = p_sar->p_sar_para->p_platform_config->p_irq_init->rc_irq_fn(p_sar->i2c);
+
+ //step2: Read the status register for status reporting
+ if (p_sar->p_sar_para->p_platform_config->p_irq_init->irq_spec_handler_fn != NULL)
+ p_sar->p_sar_para->p_platform_config->p_irq_init->irq_spec_handler_fn(irq_status,
+ p_sar);
+
+ //step3: The chip
+
+ if ((!p_sar->dts_info.monitor_esd_flag) && (p_sar->fault_flag == AW_SAR_UNHEALTHY)) {
+ p_sar->fault_flag = AW_SAR_HEALTHY;
+ disable_irq_nosync(p_sar->irq_init.to_irq);
+ p_sar->irq_init.host_irq_stat = IRQ_DISABLE;
+ //aw_sar_soft_reset(p_sar);
+ schedule_delayed_work(&p_sar->update_work, msecs_to_jiffies(500));
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int32_t aw_sar_irq_init_comm(struct aw_sar *p_sar, const struct aw_sar_irq_init_t *p_irq_init)
+{
+ irq_handler_t thread_fn = p_irq_init->thread_fn;
+ int32_t ret;
+
+ snprintf(p_sar->irq_init.label, sizeof(p_sar->irq_init.label),
+ "aw_sar%u_gpio", p_sar->dts_info.sar_num);
+ snprintf(p_sar->irq_init.dev_id, sizeof(p_sar->irq_init.dev_id),
+ "aw_sar%u_irq", p_sar->dts_info.sar_num);
+
+ if (gpio_is_valid(p_sar->dts_info.irq_gpio)) {
+ p_sar->irq_init.to_irq = gpio_to_irq(p_sar->dts_info.irq_gpio);
+ ret = devm_gpio_request_one(p_sar->dev,
+ p_sar->dts_info.irq_gpio,
+ p_irq_init->flags,
+ p_sar->irq_init.label);
+ if (ret) {
+ dev_err(p_sar->dev,
+ "request irq gpio failed, ret = %d", ret);
+ return ret;
+ }
+ if (!thread_fn)
+ thread_fn = aw_sar_irq;
+ ret = devm_request_threaded_irq(p_sar->dev,
+ p_sar->irq_init.to_irq,
+ p_irq_init->handler,
+ thread_fn,
+ p_irq_init->irq_flags,
+ p_sar->irq_init.dev_id,
+ p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev,
+ "failed to request IRQ %d: %d",
+ p_sar->irq_init.to_irq, ret);
+ return ret;
+ }
+ } else {
+ dev_err(p_sar->dev, "irq gpio invalid!");
+ return -EINVAL;
+ }
+
+ p_sar->irq_init.host_irq_stat = IRQ_DISABLE;
+ disable_irq(p_sar->irq_init.to_irq);
+
+ return 0;
+}
+
+static int32_t aw_sar_irq_init(struct aw_sar *p_sar)
+{
+
+ if (!p_sar->p_sar_para->p_platform_config->p_irq_init) {
+ dev_err(p_sar->dev, "AW_INVALID_PARA");
+ return -EINVAL;
+ }
+
+ if (p_sar->p_sar_para->p_platform_config->p_irq_init->p_irq_init_fn != NULL) {
+ dev_err(p_sar->dev, "p_irq_init_fn");
+ return p_sar->p_sar_para->p_platform_config->p_irq_init->p_irq_init_fn(p_sar);
+ }
+
+ return aw_sar_irq_init_comm(p_sar, p_sar->p_sar_para->p_platform_config->p_irq_init);
+}
+
+static void aw_sar_irq_free(struct aw_sar *p_sar)
+{
+ if ((p_sar->p_sar_para->p_platform_config != NULL) &&
+ (p_sar->p_sar_para->p_platform_config->p_irq_init != NULL) &&
+ (p_sar->p_sar_para->p_platform_config->p_irq_init->p_irq_deinit_fn != NULL)) {
+ p_sar->p_sar_para->p_platform_config->p_irq_init->p_irq_deinit_fn(p_sar);
+ dev_err(p_sar->dev, "AW_INVALID_PARA");
+ return;
+ }
+}
+
+static int32_t aw_sar_input_init_comm(struct aw_sar *p_sar)
+{
+ int32_t ret;
+ uint32_t i;
+
+ p_sar->channels_arr = devm_kzalloc(p_sar->dev,
+ sizeof(struct aw_channels_info) *
+ p_sar->p_sar_para->ch_num_max,
+ GFP_KERNEL);
+ if (!p_sar->channels_arr) {
+ dev_err(p_sar->dev, "devm_kzalloc err");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < p_sar->p_sar_para->ch_num_max; i++) {
+ snprintf(p_sar->channels_arr[i].name,
+ sizeof(p_sar->channels_arr->name),
+ "aw_sar%u_ch%ud",
+ p_sar->dts_info.sar_num, i);
+
+ p_sar->channels_arr[i].last_channel_info = 0;
+
+ if ((p_sar->dts_info.channel_use_flag >> i) & 0x01) {
+ p_sar->channels_arr[i].used = AW_TRUE;
+ p_sar->channels_arr[i].input = devm_input_allocate_device(p_sar->dev);
+ if (!p_sar->channels_arr[i].input)
+ return -EINVAL;
+ p_sar->channels_arr[i].input->name = p_sar->channels_arr[i].name;
+ input_set_abs_params(p_sar->channels_arr[i].input,
+ ABS_DISTANCE, -1, 100, 0, 0);
+ ret = input_register_device(p_sar->channels_arr[i].input);
+ if (ret) {
+ dev_err(p_sar->dev, "failed to register input device");
+ return ret;
+ }
+ } else {
+ p_sar->channels_arr[i].used = AW_FALSE;
+ p_sar->channels_arr[i].input = NULL;
+ }
+ }
+
+ return 0;
+}
+
+static int32_t aw_sar_input_init(struct aw_sar *p_sar)
+{
+ if (p_sar->p_sar_para->p_platform_config->p_input_init_fn != NULL)
+ return p_sar->p_sar_para->p_platform_config->p_input_init_fn(p_sar);
+
+ return aw_sar_input_init_comm(p_sar);
+}
+
+static void aw_sar_input_free(struct aw_sar *p_sar)
+{
+ if ((p_sar->p_sar_para->p_platform_config != NULL) &&
+ (p_sar->p_sar_para->p_platform_config->p_input_deinit_fn != NULL)) {
+ p_sar->p_sar_para->p_platform_config->p_input_deinit_fn(p_sar);
+ }
+}
+
+static int32_t aw_sar_check_init_over_irq_comm(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ if (!p_sar->p_sar_para->p_init_over_irq)
+ return -EINVAL;
+
+ ret = aw_sar_check_init_over_irq_func(p_sar->i2c, p_sar->p_sar_para->p_init_over_irq);
+ if (ret == AW_ERR_IRQ_INIT_OVER) {
+ if (p_sar->p_sar_para->p_init_over_irq->p_get_err_type_fn != NULL) {
+ //Consider the abnormality reasonable
+ if (p_sar->p_sar_para->p_init_over_irq->p_get_err_type_fn(p_sar) == 0) {
+ p_sar->fw_fail_flag = AW_TRUE;
+ return 0;
+ }
+ }
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+//If there is no special operation on the chip, execute the common process
+int32_t aw_sar_check_init_over_irq(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para->p_init_over_irq)
+ return -EINVAL;
+
+ if (p_sar->p_sar_para->p_init_over_irq->p_check_init_over_irq_fn != NULL)
+ return p_sar->p_sar_para->p_init_over_irq->p_check_init_over_irq_fn(p_sar);
+
+ return aw_sar_check_init_over_irq_comm(p_sar);
+}
+
+static int32_t aw_sar_chip_other_operation(struct aw_sar *p_sar)
+{
+ if (p_sar->p_sar_para->p_other_operation != NULL)
+ return p_sar->p_sar_para->p_other_operation(p_sar);
+
+ return 0;
+}
+
+static void aw_sar_chip_other_operation_free(struct aw_sar *p_sar)
+{
+ if (p_sar->p_sar_para->p_other_opera_free != NULL)
+ p_sar->p_sar_para->p_other_opera_free(p_sar);
+}
+
+int32_t aw_sar_soft_reset(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para->p_soft_rst)
+ return -EINVAL;
+
+ //If a private interface is defined, the private interface is used
+ if (p_sar->p_sar_para->p_soft_rst->p_soft_reset_fn != NULL)
+ return p_sar->p_sar_para->p_soft_rst->p_soft_reset_fn(p_sar);
+
+ return aw_sar_soft_reset_func(p_sar->i2c, p_sar->p_sar_para->p_soft_rst);
+}
+
+static int32_t aw_sar_check_chipid(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para)
+ return -EINVAL;
+
+ if (p_sar->p_sar_para->p_check_chipid != NULL) {
+ if (p_sar->p_sar_para->p_check_chipid->p_check_chipid_fn != NULL)
+ return p_sar->p_sar_para->p_check_chipid->p_check_chipid_fn(p_sar);
+ }
+
+ return -EINVAL;
+}
+
+int32_t aw_sar_load_def_reg_bin(struct aw_sar *p_sar)
+{
+ if ((!p_sar->p_sar_para->p_reg_bin) ||
+ (!p_sar->p_sar_para->p_reg_bin->bin_name)) {
+ dev_err(p_sar->dev, "p_reg_bin is NULL or bin_name is NULL error");
+ p_sar->ret_val = AW_BIN_PARA_INVALID;
+ return -EINVAL;
+ }
+
+ snprintf(p_sar->load_bin.bin_name, sizeof(p_sar->load_bin.bin_name),
+ "%s_%u.bin", p_sar->p_sar_para->p_reg_bin->bin_name,
+ p_sar->dts_info.sar_num);
+
+ p_sar->load_bin.bin_opera_func = p_sar->p_sar_para->p_reg_bin->bin_opera_func;
+
+ return aw_sar_load_bin_comm(p_sar);
+}
+
+static int32_t aw_sar_para_loaded(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para->p_reg_arr)
+ return -EINVAL;
+
+ aw_sar_para_loaded_func(p_sar->i2c, p_sar->p_sar_para->p_reg_arr);
+
+ return 0;
+}
+
+static int32_t aw_sar_reg_update_boot_work(struct aw_sar *p_sar)
+{
+ if ((!p_sar->p_sar_para->p_boot_bin) || (!p_sar->p_sar_para->p_boot_bin->bin_name))
+ return -EINVAL;
+
+ snprintf(p_sar->load_bin.bin_name, sizeof(p_sar->load_bin.bin_name),
+ "%s_%u.bin", p_sar->p_sar_para->p_boot_bin->bin_name,
+ p_sar->dts_info.sar_num);
+
+ p_sar->load_bin.bin_opera_func = p_sar->p_sar_para->p_boot_bin->bin_opera_func;
+
+ return aw_sar_load_bin_comm(p_sar);
+}
+
+static int32_t aw_sar_update_fw_para(struct aw_sar *p_sar, const struct aw_sar_load_bin_t *p_bin)
+{
+ if ((!p_bin) || (!p_bin->bin_name))
+ return -EINVAL;
+
+ p_sar->load_bin.bin_opera_func = p_bin->bin_opera_func;
+ p_sar->load_bin.bin_load_fail_opera_func = p_bin->bin_load_fail_opera;
+
+ snprintf(p_sar->load_bin.bin_name, sizeof(p_sar->load_bin.bin_name),
+ "%s_%u.bin", p_bin->bin_name, p_sar->dts_info.sar_num);
+
+ return 0;
+}
+
+int32_t aw_sar_update_fw(struct aw_sar *p_sar)
+{
+ if (aw_sar_update_fw_para(p_sar, p_sar->p_sar_para->p_fw_bin) != 0)
+ return -EINVAL;
+
+ return aw_sar_load_bin_comm(p_sar);
+}
+
+static int32_t aw_sar_node_prox_update_fw(struct aw_sar *p_sar)
+{
+ if (aw_sar_update_fw_para(p_sar, p_sar->p_sar_para->p_prox_fw) != 0)
+ return -EINVAL;
+
+ return aw_sar_load_bin_comm(p_sar);
+}
+
+static int32_t aw_sar_node_reg_update_fw(struct aw_sar *p_sar)
+{
+ if (aw_sar_update_fw_para(p_sar, p_sar->p_sar_para->p_reg_fw))
+ return -EINVAL;
+
+ return aw_sar_load_bin_comm(p_sar);
+}
+
+static int32_t aw_sar_awrw_data_analysis(struct aw_sar *p_sar, const char *buf, uint8_t len)
+{
+ uint32_t theory_len = len * AW_SAR_AWRW_DATA_WIDTH + AW_SAR_AWRW_OffSET;
+ uint32_t actual_len = strlen(buf);
+ uint8_t data_temp[2] = { 0 };
+ uint32_t tranfar_data_temp;
+ uint8_t index = 0;
+ uint32_t i;
+
+ if (theory_len != actual_len) {
+ dev_err(p_sar->dev, "error theory_len = %d actual_len = %d",
+ theory_len, actual_len);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < len * AW_SAR_AWRW_DATA_WIDTH; i += AW_SAR_AWRW_DATA_WIDTH) {
+ data_temp[0] = buf[AW_SAR_AWRW_OffSET + i + AW_DATA_OffSET_2];
+ data_temp[1] = buf[AW_SAR_AWRW_OffSET + i + AW_DATA_OffSET_3];
+
+ if (sscanf(data_temp, "%02x", &tranfar_data_temp) == 1)
+ p_sar->awrw_info.p_i2c_tranfar_data[index] = (uint8_t)tranfar_data_temp;
+ index++;
+ }
+
+ return 0;
+}
+
+static int32_t aw_sar_awrw_write(struct aw_sar *p_sar, const char *buf)
+{
+ int32_t ret;
+
+ ret = aw_sar_awrw_data_analysis(p_sar, buf, p_sar->awrw_info.i2c_tranfar_data_len);
+ if (ret == 0)
+ aw_sar_i2c_write_seq(p_sar->i2c, p_sar->awrw_info.p_i2c_tranfar_data,
+ p_sar->awrw_info.i2c_tranfar_data_len);
+
+ return ret;
+}
+
+static int32_t aw_sar_awrw_read(struct aw_sar *p_sar, const char *buf)
+{
+ int32_t ret = 0;
+ uint8_t *p_buf = p_sar->awrw_info.p_i2c_tranfar_data + p_sar->awrw_info.addr_len;
+ uint32_t len = (uint16_t)(p_sar->awrw_info.data_len * p_sar->awrw_info.reg_num);
+
+ ret = aw_sar_awrw_data_analysis(p_sar, buf, p_sar->awrw_info.addr_len);
+ if (ret == 0) {
+ ret = aw_sar_i2c_read_seq(p_sar->i2c,
+ p_sar->awrw_info.p_i2c_tranfar_data,
+ p_sar->awrw_info.addr_len,
+ p_sar->awrw_info.p_i2c_tranfar_data + p_sar->awrw_info.addr_len,
+ (uint16_t)(p_sar->awrw_info.data_len * p_sar->awrw_info.reg_num));
+ if (ret != 0)
+ memset(p_buf, 0xff, len);
+ }
+
+ return ret;
+}
+
+static int32_t aw_sar_awrw_get_func(struct aw_sar *p_sar, char *buf)
+{
+ uint32_t len = 0;
+ uint32_t i;
+
+ if (!p_sar->awrw_info.p_i2c_tranfar_data) {
+ dev_err(p_sar->dev, "p_i2c_tranfar_data is NULL");
+ return len;
+ }
+
+ if (p_sar->awrw_info.rw_flag == AW_SAR_PACKAGE_RD) {
+ for (i = 0; i < p_sar->awrw_info.i2c_tranfar_data_len; i++) {
+ len += snprintf(buf + len, PAGE_SIZE - len, "0x%02x,",
+ p_sar->awrw_info.p_i2c_tranfar_data[i]);
+ }
+ } else {
+ for (i = 0; i < (p_sar->awrw_info.data_len) * (p_sar->awrw_info.reg_num); i++) {
+ len += snprintf(buf + len, PAGE_SIZE - len, "0x%02x,",
+ p_sar->awrw_info.p_i2c_tranfar_data[p_sar->awrw_info.addr_len + i]);
+ }
+ }
+ snprintf(buf + len - 1, PAGE_SIZE - len, "\n");
+
+ devm_kfree(p_sar->dev, p_sar->awrw_info.p_i2c_tranfar_data);
+ p_sar->awrw_info.p_i2c_tranfar_data = NULL;
+
+ return len;
+}
+
+//Function: continuous read register interface
+static ssize_t awrw_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ ssize_t ret;
+
+ mutex_lock(&aw_sar_lock);
+ if ((p_sar->p_sar_para->p_aw_sar_awrw != NULL) &&
+ (p_sar->p_sar_para->p_aw_sar_awrw->p_get_awrw_node_fn != NULL)) {
+ ret = (ssize_t)p_sar->p_sar_para->p_aw_sar_awrw->p_get_awrw_node_fn(p_sar, buf);
+ mutex_unlock(&aw_sar_lock);
+ return ret;
+ }
+
+ ret = (ssize_t)aw_sar_awrw_get_func(p_sar, buf);
+
+ mutex_unlock(&aw_sar_lock);
+
+ return ret;
+}
+
+static int32_t aw_sar_awrw_handle(struct aw_sar *p_sar, const char *buf)
+{
+ int32_t ret;
+
+ p_sar->awrw_info.i2c_tranfar_data_len = p_sar->awrw_info.addr_len +
+ p_sar->awrw_info.data_len *
+ p_sar->awrw_info.reg_num;
+
+ if (p_sar->awrw_info.p_i2c_tranfar_data != NULL) {
+ devm_kfree(p_sar->dev, p_sar->awrw_info.p_i2c_tranfar_data);
+ p_sar->awrw_info.p_i2c_tranfar_data = NULL;
+ }
+
+ p_sar->awrw_info.p_i2c_tranfar_data = devm_kzalloc(p_sar->dev,
+ p_sar->awrw_info.i2c_tranfar_data_len, GFP_KERNEL);
+ if (!p_sar->awrw_info.p_i2c_tranfar_data)
+ return -ENOMEM;
+
+ if (p_sar->awrw_info.rw_flag == AW_SAR_I2C_WR) {
+ ret = aw_sar_awrw_write(p_sar, buf);
+ if (ret != 0)
+ dev_err(p_sar->dev, "awrw_write error");
+ if (p_sar->awrw_info.p_i2c_tranfar_data != NULL) {
+ devm_kfree(p_sar->dev, p_sar->awrw_info.p_i2c_tranfar_data);
+ p_sar->awrw_info.p_i2c_tranfar_data = NULL;
+ }
+ } else if (p_sar->awrw_info.rw_flag == AW_SAR_I2C_RD) {
+ ret = aw_sar_awrw_read(p_sar, buf);
+ if (ret != 0)
+ dev_err(p_sar->dev, "awrw_read error");
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int32_t aw_sar_awrw_set_func(struct aw_sar *p_sar, const char *buf)
+{
+ uint32_t rw_flag;
+ uint32_t addr_bytes;
+ uint32_t data_bytes;
+ uint32_t package_nums;
+ uint32_t addr_tmp;
+ uint32_t buf_index0;
+ uint32_t buf_index1;
+ uint32_t r_buf_len = 0;
+ uint32_t tr_offset = 0;
+ uint8_t addr[4] = { 0 };
+ uint32_t theory_len;
+ uint32_t actual_len;
+ uint32_t reg_num;
+ uint32_t i;
+ uint32_t j;
+
+ //step1: Parse frame header
+ if (sscanf(buf, "0x%02x 0x%02x 0x%02x ", &rw_flag, &addr_bytes, &data_bytes) != 3) {
+ dev_err(p_sar->dev, "sscanf0 parse error!");
+ return -EINVAL;
+ }
+ p_sar->awrw_info.rw_flag = (uint8_t)rw_flag;
+ p_sar->awrw_info.addr_len = (uint8_t)addr_bytes;
+ p_sar->awrw_info.data_len = (uint8_t)data_bytes;
+
+ if (addr_bytes > 4) {
+ dev_err(p_sar->dev, "para error!");
+ return -EINVAL;
+ }
+
+ if ((rw_flag == AW_SAR_I2C_WR) || (rw_flag == AW_SAR_I2C_RD)) {
+ if (sscanf(buf + AW_SAR_OFFSET_LEN, "0x%02x ", ®_num) != 1) {
+ dev_err(p_sar->dev, "sscanf1 parse error!");
+ return -EINVAL;
+ }
+ p_sar->awrw_info.reg_num = (uint8_t)reg_num;
+ aw_sar_awrw_handle(p_sar, buf);
+ } else if (rw_flag == AW_SAR_PACKAGE_RD) {
+ //step2: Get number of packages
+ if (sscanf(buf + AW_SAR_OFFSET_LEN, "0x%02x ", &package_nums) != 1) {
+ dev_err(p_sar->dev, "sscanf2 parse error!");
+ return -EINVAL;
+ }
+ theory_len = AW_SAR_OFFSET_LEN + AW_SAR_AWRW_DATA_WIDTH +
+ package_nums * (AW_SAR_AWRW_DATA_WIDTH +
+ AW_SAR_AWRW_DATA_WIDTH * addr_bytes);
+ actual_len = strlen(buf);
+ if (theory_len != actual_len) {
+ dev_err(p_sar->dev, "theory_len:%d, actual_len:%d error!",
+ theory_len, actual_len);
+ return -EINVAL;
+ }
+
+ //step3: Get the size of read data and apply for space
+ for (i = 0; i < package_nums; i++) {
+ buf_index0 = AW_SAR_OFFSET_LEN + AW_SAR_AWRW_DATA_WIDTH +
+ (AW_SAR_AWRW_DATA_WIDTH * addr_bytes +
+ AW_SAR_AWRW_DATA_WIDTH) * i;
+ if (sscanf(buf + buf_index0, "0x%02x", ®_num) != 1) {
+ dev_err(p_sar->dev, "sscanf3 parse error!");
+ return -EINVAL;
+ }
+ r_buf_len += reg_num * data_bytes;
+ }
+
+ p_sar->awrw_info.i2c_tranfar_data_len = r_buf_len;
+
+ if (p_sar->awrw_info.p_i2c_tranfar_data != NULL) {
+ devm_kfree(p_sar->dev, p_sar->awrw_info.p_i2c_tranfar_data);
+ p_sar->awrw_info.p_i2c_tranfar_data = NULL;
+ }
+ p_sar->awrw_info.p_i2c_tranfar_data = devm_kzalloc(p_sar->dev,
+ r_buf_len, GFP_KERNEL);
+ if (!p_sar->awrw_info.p_i2c_tranfar_data)
+ return -ENOMEM;
+
+ //step3: Resolve register address and read data in packets
+ for (i = 0; i < package_nums; i++) {
+ buf_index0 = AW_SAR_OFFSET_LEN + AW_SAR_AWRW_DATA_WIDTH +
+ (AW_SAR_AWRW_DATA_WIDTH * addr_bytes + AW_SAR_AWRW_DATA_WIDTH) * i;
+ if (sscanf(buf + buf_index0, "0x%02x", ®_num) != 1) {
+ dev_err(p_sar->dev, "sscanf4 parse error!");
+ return -EINVAL;
+ }
+
+ for (j = 0; j < addr_bytes; j += 1) {
+ buf_index1 = buf_index0 + AW_SAR_AWRW_DATA_WIDTH +
+ (j * AW_SAR_AWRW_DATA_WIDTH);
+ if (sscanf(buf + buf_index1, "0x%02x", &addr_tmp) == 1) {
+ addr[j] = (uint8_t)addr_tmp;
+ } else {
+ dev_err(p_sar->dev, "sscanf5 parse error!");
+ return -EINVAL;
+ }
+ }
+ aw_sar_i2c_read_seq(p_sar->i2c,
+ addr,
+ addr_bytes,
+ p_sar->awrw_info.p_i2c_tranfar_data + tr_offset,
+ (uint16_t)(data_bytes * reg_num));
+ tr_offset += data_bytes * reg_num;
+ }
+ }
+
+ return 0;
+}
+
+//Function: continuous write register interface
+static ssize_t
+awrw_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+
+ mutex_lock(&aw_sar_lock);
+
+ if ((p_sar->p_sar_para->p_aw_sar_awrw != NULL) &&
+ (p_sar->p_sar_para->p_aw_sar_awrw->p_set_awrw_node_fn != NULL)) {
+ p_sar->p_sar_para->p_aw_sar_awrw->p_set_awrw_node_fn(p_sar, buf, count);
+ mutex_unlock(&aw_sar_lock);
+ return count;
+ }
+
+ aw_sar_awrw_set_func(p_sar, buf);
+
+ mutex_unlock(&aw_sar_lock);
+
+ return count;
+}
+//Print all readable register values
+static ssize_t reg_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint8_t reg_rd_access;
+ uint32_t reg_data;
+ ssize_t len = 0;
+ int32_t ret;
+ uint16_t i;
+
+ if (!p_sar->p_sar_para->p_reg_list)
+ return len;
+
+ reg_rd_access = p_sar->p_sar_para->p_reg_list->reg_rd_access;
+
+ for (i = 0; i < p_sar->p_sar_para->p_reg_list->reg_num; i++) {
+ if (p_sar->p_sar_para->p_reg_list->reg_perm[i].rw & reg_rd_access) {
+ ret = aw_sar_i2c_read(p_sar->i2c,
+ p_sar->p_sar_para->p_reg_list->reg_perm[i].reg, ®_data);
+ if (ret < 0)
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "i2c read error ret = %d\n", ret);
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "%x,%x\n",
+ p_sar->p_sar_para->p_reg_list->reg_perm[i].reg,
+ reg_data);
+ }
+ }
+
+ return len;
+}
+
+//Write register interface with write permission
+static ssize_t
+reg_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint32_t databuf[2] = { 0, 0 };
+ uint8_t reg_wd_access;
+ uint16_t i;
+
+ if (!p_sar->p_sar_para->p_reg_list) {
+ dev_err(p_sar->dev, "AW_INVALID_PARA");
+ return count;
+ }
+
+ reg_wd_access = p_sar->p_sar_para->p_reg_list->reg_wd_access;
+
+ if (sscanf(buf, "%x %x", &databuf[0], &databuf[1]) != 2)
+ return count;
+
+ for (i = 0; i < p_sar->p_sar_para->p_reg_list->reg_num; i++) {
+ if ((uint16_t)databuf[0] == p_sar->p_sar_para->p_reg_list->reg_perm[i].reg) {
+ if (p_sar->p_sar_para->p_reg_list->reg_perm[i].rw & reg_wd_access) {
+ aw_sar_i2c_write(p_sar->i2c,
+ (uint16_t)databuf[0], (uint32_t)databuf[1]);
+ }
+ break;
+ }
+ }
+
+ return count;
+}
+
+//set chip Soft reset
+static ssize_t
+soft_rst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint32_t flag;
+
+ if (kstrtouint(buf, 0, &flag) != 0) {
+ dev_err(p_sar->dev, "kstrtouint parse err");
+ return count;
+ }
+
+ if (flag == AW_TRUE)
+ aw_sar_soft_reset(p_sar);
+
+ return count;
+}
+
+static int32_t aw_sar_aot(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para->p_aot)
+ return -EINVAL;
+
+ if (p_sar->p_sar_para->p_aot->p_set_aot_node_fn != NULL)
+ return p_sar->p_sar_para->p_aot->p_set_aot_node_fn(p_sar);
+
+ return aw_sar_i2c_write_bits(p_sar->i2c, p_sar->p_sar_para->p_aot->aot_reg,
+ p_sar->p_sar_para->p_aot->aot_mask,
+ p_sar->p_sar_para->p_aot->aot_flag);
+}
+
+//Perform Auto-Offset-Tuning (AOT)
+static ssize_t
+aot_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint32_t cali_flag;
+
+ if (kstrtouint(buf, 0, &cali_flag) != 0)
+ return count;
+
+ if (cali_flag == AW_TRUE)
+ aw_sar_aot(p_sar);
+ else
+ dev_err(p_sar->dev, "fail to set aot cali");
+
+ return count;
+}
+
+//update Register configuration and set the chip active mode
+int32_t aw_sar_update_reg_set_func(struct aw_sar *p_sar)
+{
+ aw_sar_load_def_reg_bin(p_sar);
+ aw_sar_mode_set(p_sar, p_sar->p_sar_para->p_chip_mode->active);
+
+ return 0;
+}
+
+//Update register configuration
+static ssize_t
+update_reg_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint32_t flag;
+
+ if (kstrtouint(buf, 0, &flag) != 0) {
+ dev_err(p_sar->dev, "kstrtouint parse error");
+ return count;
+ }
+
+ if (flag == AW_TRUE) {
+ mutex_lock(&aw_sar_lock);
+ aw_sar_soft_reset(p_sar);
+ aw_sar_update_reg_set_func(p_sar);
+ mutex_unlock(&aw_sar_lock);
+ }
+
+ return count;
+}
+
+//get chip diff val
+static ssize_t aw_sar_get_diff(struct aw_sar *p_sar, char *buf)
+{
+ const struct aw_sar_diff_t *diff = p_sar->p_sar_para->p_diff;
+ int32_t diff_val;
+ ssize_t len = 0;
+ uint32_t data;
+ int32_t ret;
+ uint32_t i;
+
+ if (!p_sar->p_sar_para->p_diff)
+ return -EINVAL;
+
+ //If a private interface is defined, the private interface is used
+ if (p_sar->p_sar_para->p_diff->p_get_diff_node_fn != NULL)
+ return p_sar->p_sar_para->p_diff->p_get_diff_node_fn(p_sar, buf);
+
+ for (i = 0; i < p_sar->p_sar_para->ch_num_max; i++) {
+ ret = aw_sar_i2c_read(p_sar->i2c, diff->diff0_reg + i * diff->diff_step, &data);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "read diff err: %d", ret);
+ return ret;
+ }
+ diff_val = (int32_t)data / (int32_t)diff->rm_float;
+ len += snprintf(buf + len, PAGE_SIZE - len, "DIFF_CH%u = %d\n", i, diff_val);
+ }
+
+ return len;
+}
+
+
+//Print diff values of all channels of the chip.
+static ssize_t diff_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+
+ return aw_sar_get_diff(p_sar, buf);
+}
+
+void aw_sar_mode_set(struct aw_sar *p_sar, uint8_t curr_mode)
+{
+ struct aw_sar_mode_set_t mode_set_para;
+
+ if (!p_sar->p_sar_para->p_mode)
+ return;
+
+ //If a private interface is defined, the private interface is used
+ if (p_sar->p_sar_para->p_mode->p_set_mode_node_fn != NULL) {
+ p_sar->p_sar_para->p_mode->p_set_mode_node_fn(p_sar, curr_mode);
+ return;
+ }
+
+ mode_set_para.chip_id = p_sar->chip_type;
+ mode_set_para.chip_mode.curr_mode = curr_mode;
+ mode_set_para.chip_mode.last_mode = p_sar->last_mode;
+
+ aw_sar_mode_set_func(p_sar->i2c, p_sar->irq_init.to_irq, &mode_set_para,
+ p_sar->p_sar_para->p_mode->mode_set_arr,
+ p_sar->p_sar_para->p_mode->mode_set_arr_len);
+ p_sar->last_mode = curr_mode;
+}
+
+//Set the chip to enter different modes
+static ssize_t mode_operation_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ uint32_t mode;
+
+ if (kstrtouint(buf, 0, &mode) != 0) {
+ dev_err(p_sar->dev, "kstrtouint parse err");
+ return count;
+ }
+ aw_sar_mode_set(p_sar, mode);
+
+ return count;
+}
+
+//Get the current mode of the chip
+static ssize_t mode_operation_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ ssize_t len = 0;
+
+ if (!p_sar->p_sar_para->p_mode)
+ return len;
+
+ if (p_sar->p_sar_para->p_mode->p_get_mode_node_fn != NULL)
+ len = p_sar->p_sar_para->p_mode->p_get_mode_node_fn(p_sar, buf);
+
+ return len;
+}
+
+//Print information related information
+static ssize_t chip_info_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ ssize_t len = 0;
+
+ len += snprintf(buf + len, PAGE_SIZE - len, "reg_load_state: %d\n", p_sar->ret_val);
+
+ if ((p_sar->p_sar_para->p_get_chip_info != NULL) &&
+ (p_sar->p_sar_para->p_get_chip_info->p_get_chip_info_node_fn != NULL)) {
+ p_sar->p_sar_para->p_get_chip_info->p_get_chip_info_node_fn(p_sar, buf, &len);
+ }
+
+ return len;
+}
+
+static ssize_t offset_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ ssize_t len = 0;
+
+ if ((p_sar->p_sar_para->p_offset != NULL) &&
+ (p_sar->p_sar_para->p_offset->p_get_offset_node_fn != NULL))
+ len = (ssize_t)p_sar->p_sar_para->p_offset->p_get_offset_node_fn(p_sar, buf);
+
+ return len;
+}
+
+static DEVICE_ATTR_RW(awrw);
+static DEVICE_ATTR_RW(reg);
+static DEVICE_ATTR_WO(soft_rst);
+static DEVICE_ATTR_WO(aot);
+static DEVICE_ATTR_WO(update_reg);
+static DEVICE_ATTR_RO(diff);
+static DEVICE_ATTR_RW(mode_operation);
+static DEVICE_ATTR_RO(chip_info);
+static DEVICE_ATTR_RO(offset);
+
+static struct attribute *aw_sar_attributes[] = {
+ &dev_attr_awrw.attr,
+ &dev_attr_reg.attr,
+ &dev_attr_soft_rst.attr,
+ &dev_attr_aot.attr,
+ &dev_attr_update_reg.attr,
+ &dev_attr_diff.attr,
+ &dev_attr_mode_operation.attr,
+ &dev_attr_chip_info.attr,
+ &dev_attr_offset.attr,
+ NULL
+};
+
+static const struct attribute_group aw_sar_attribute_group = {
+ .attrs = aw_sar_attributes,
+};
+
+//firmware upgrade through write register mode, and the operation is supported by flash chip
+static ssize_t prot_update_fw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+
+
+ mutex_lock(&aw_sar_lock);
+ aw_sar_disable_irq(p_sar);
+
+ p_sar->prot_update_state = aw_sar_node_prox_update_fw(p_sar);
+
+ aw_sar_enable_irq(p_sar);
+ mutex_unlock(&aw_sar_lock);
+
+ return count;
+}
+
+//firmware upgrade throughr Write register mode,and the operation is supported by flash chip
+static ssize_t reg_update_fw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+
+ mutex_lock(&aw_sar_lock);
+ aw_sar_disable_irq(p_sar);
+
+ aw_sar_node_reg_update_fw(p_sar);
+
+ aw_sar_enable_irq(p_sar);
+ mutex_unlock(&aw_sar_lock);
+
+ return count;
+}
+
+//boot upgrade throughr Write register mode,and the operation is supported by flash chip
+static ssize_t reg_update_boot_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+
+ if (!p_sar->p_sar_para->p_boot_bin)
+ return count;
+
+ mutex_lock(&aw_sar_lock);
+ aw_sar_disable_irq(p_sar);
+
+ aw_sar_reg_update_boot_work(p_sar);
+
+ aw_sar_enable_irq(p_sar);
+ mutex_unlock(&aw_sar_lock);
+
+ return count;
+}
+
+//Print the protocol upgrade status. 0 is success, Not 0 is failure
+//Print the current firmware version number
+static ssize_t prot_update_fw_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct aw_sar *p_sar = dev_get_drvdata(dev);
+ ssize_t len = 0;
+
+ len += snprintf(buf + len, PAGE_SIZE - len,
+ "protocol update state:%s!\n",
+ (p_sar->prot_update_state == 0) ? "ok" : "error");
+ if ((p_sar->p_sar_para->p_prox_fw != NULL) &&
+ (p_sar->p_sar_para->p_prox_fw->p_get_prot_update_fw_node_fn != NULL))
+ p_sar->p_sar_para->p_prox_fw->p_get_prot_update_fw_node_fn(p_sar, buf, &len);
+
+ return len;
+}
+
+static DEVICE_ATTR_RW(prot_update_fw);
+static DEVICE_ATTR_WO(reg_update_fw);
+static DEVICE_ATTR_WO(reg_update_boot);
+
+static struct attribute *aw_sar_update_attributes[] = {
+ &dev_attr_prot_update_fw.attr,
+ &dev_attr_reg_update_fw.attr,
+ &dev_attr_reg_update_boot.attr,
+ NULL
+};
+
+static const struct attribute_group aw_sar_update_attribute_group = {
+ .attrs = aw_sar_update_attributes,
+};
+
+static void aw_sar_update_work(struct work_struct *work)
+{
+ struct aw_sar *p_sar = container_of(work, struct aw_sar, update_work.work);
+ int32_t ret;
+
+ mutex_lock(&aw_sar_lock);
+
+ if (p_sar->dts_info.update_fw_flag == true) {
+ ret = aw_sar_update_fw(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "protocol upgrade firmware error!");
+ p_sar->ret_val = AW_PROT_UPDATE_ERR;
+ }
+ }
+
+ //2.Parse the bin file and load the register configuration
+ ret = aw_sar_load_def_reg_bin(p_sar);
+ if (ret != 0) {
+ p_sar->ret_val = AW_REG_LOAD_ERR;
+ dev_err(p_sar->dev, "reg_bin load err!");
+ aw_sar_para_loaded(p_sar);
+ }
+
+ //3.active chip
+ aw_sar_mode_set(p_sar, p_sar->p_sar_para->p_chip_mode->init_mode);
+ if (p_sar->irq_init.host_irq_stat == IRQ_DISABLE) {
+ enable_irq(p_sar->irq_init.to_irq);
+ p_sar->irq_init.host_irq_stat = IRQ_ENABLE;
+ }
+ p_sar->driver_code_initover_flag = 1;
+ mutex_unlock(&aw_sar_lock);
+}
+
+static void aw_sar_update(struct aw_sar *p_sar)
+{
+ if (!p_sar->p_sar_para->p_reg_bin)
+ return;
+
+ if (p_sar->p_sar_para->p_reg_bin->p_update_fn != NULL)
+ p_sar->p_sar_para->p_reg_bin->p_update_fn(p_sar);
+
+ if (p_sar->driver_code_initover_flag) {
+ schedule_delayed_work(&p_sar->update_work, msecs_to_jiffies(0));
+ } else {
+ INIT_DELAYED_WORK(&p_sar->update_work, aw_sar_update_work);
+ schedule_delayed_work(&p_sar->update_work,
+ msecs_to_jiffies(AW_POWER_ON_SYSFS_DELAY_MS));
+ }
+}
+
+static int32_t aw_sar_create_node(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ i2c_set_clientdata(p_sar->i2c, p_sar);
+
+ ret = sysfs_create_group(&p_sar->i2c->dev.kobj, &aw_sar_attribute_group);
+
+ if (p_sar->dts_info.update_fw_flag == true)
+ ret |= sysfs_create_group(&p_sar->i2c->dev.kobj, &aw_sar_update_attribute_group);
+
+ //Special requirements of SAR chip
+ if (p_sar->p_sar_para->p_platform_config->p_add_node_create_fn != NULL)
+ ret |= p_sar->p_sar_para->p_platform_config->p_add_node_create_fn(p_sar);
+
+ return ret;
+}
+
+static void aw_sar_node_free(struct aw_sar *p_sar)
+{
+ sysfs_remove_group(&p_sar->i2c->dev.kobj, &aw_sar_attribute_group);
+
+ if (p_sar->dts_info.update_fw_flag == true)
+ sysfs_remove_group(&p_sar->i2c->dev.kobj, &aw_sar_update_attribute_group);
+
+ //Special requirements of SAR chip
+ if ((p_sar->p_sar_para->p_platform_config != NULL) &&
+ (p_sar->p_sar_para->p_platform_config->p_add_node_free_fn != NULL))
+ p_sar->p_sar_para->p_platform_config->p_add_node_free_fn(p_sar);
+}
+
+//The interrupt pin is set to internal pull-up start
+static void aw_sar_int_output(struct aw_sar *p_sar, int32_t level)
+{
+ if (level == 0) {
+ if (p_sar->pinctrl.pinctrl)
+ pinctrl_select_state(p_sar->pinctrl.pinctrl, p_sar->pinctrl.int_out_low);
+ else
+ dev_err(p_sar->dev, "Failed set int pin output low\n");
+ } else if (level == 1) {
+ if (p_sar->pinctrl.pinctrl)
+ pinctrl_select_state(p_sar->pinctrl.pinctrl, p_sar->pinctrl.int_out_high);
+ else
+ dev_err(p_sar->dev, "Failed set int pin output high\n");
+ }
+}
+
+static int32_t aw_sar_pinctrl_init(struct aw_sar *p_sar)
+{
+ struct aw_sar_pinctrl *pinctrl = &p_sar->pinctrl;
+ uint8_t pin_default_name[50] = { 0 };
+ uint8_t pin_output_low_name[50] = { 0 };
+ uint8_t pin_output_high_name[50] = { 0 };
+
+ pinctrl->pinctrl = devm_pinctrl_get(p_sar->dev);
+ if (IS_ERR_OR_NULL(pinctrl->pinctrl)) {
+ dev_err(p_sar->dev, "No pinctrl found\n");
+ pinctrl->pinctrl = NULL;
+ return -EINVAL;
+ }
+
+ snprintf(pin_default_name, sizeof(pin_default_name),
+ "aw_default_sar%u", p_sar->dts_info.sar_num);
+ pinctrl->default_sta = pinctrl_lookup_state(pinctrl->pinctrl, pin_default_name);
+ if (IS_ERR_OR_NULL(pinctrl->default_sta)) {
+ dev_err(p_sar->dev, "Failed get pinctrl state:default state");
+ goto exit_pinctrl_init;
+ }
+
+ snprintf(pin_output_high_name, sizeof(pin_output_high_name),
+ "aw_int_output_high_sar%u", p_sar->dts_info.sar_num);
+ pinctrl->int_out_high = pinctrl_lookup_state(pinctrl->pinctrl, pin_output_high_name);
+ if (IS_ERR_OR_NULL(pinctrl->int_out_high)) {
+ dev_err(p_sar->dev, "Failed get pinctrl state:output_high");
+ goto exit_pinctrl_init;
+ }
+
+ snprintf(pin_output_low_name, sizeof(pin_output_low_name),
+ "aw_int_output_low_sar%u", p_sar->dts_info.sar_num);
+ pinctrl->int_out_low = pinctrl_lookup_state(pinctrl->pinctrl, pin_output_low_name);
+ if (IS_ERR_OR_NULL(pinctrl->int_out_low)) {
+ dev_err(p_sar->dev, "Failed get pinctrl state:output_low");
+ goto exit_pinctrl_init;
+ }
+
+ return 0;
+
+exit_pinctrl_init:
+ devm_pinctrl_put(pinctrl->pinctrl);
+ pinctrl->pinctrl = NULL;
+
+ return -EINVAL;
+}
+
+static void aw_sar_pinctrl_deinit(struct aw_sar *p_sar)
+{
+ if (p_sar->pinctrl.pinctrl)
+ devm_pinctrl_put(p_sar->pinctrl.pinctrl);
+}
+//The interrupt pin is set to internal pull-up end
+
+//AW_SAR_REGULATOR_POWER_ON start
+static int32_t aw_sar_regulator_power_init(struct aw_sar *p_sar)
+{
+ uint8_t vcc_name[20] = { 0 };
+ int32_t rc;
+
+ snprintf(vcc_name, sizeof(vcc_name), "vcc%u", p_sar->dts_info.sar_num);
+ p_sar->vcc = regulator_get(p_sar->dev, vcc_name);
+ if (IS_ERR(p_sar->vcc)) {
+ rc = PTR_ERR(p_sar->vcc);
+ dev_err(p_sar->dev, "regulator get failed vcc rc = %d", rc);
+ return rc;
+ }
+
+ if (regulator_count_voltages(p_sar->vcc) > 0) {
+ rc = regulator_set_voltage(p_sar->vcc, AW_SAR_VCC_MIN_UV, AW_SAR_VCC_MAX_UV);
+ if (rc) {
+ dev_err(p_sar->dev, "regulator set vol failed rc = %d", rc);
+ goto reg_vcc_put;
+ }
+ }
+
+ return 0;
+
+reg_vcc_put:
+ regulator_put(p_sar->vcc);
+ return rc;
+}
+
+static void aw_sar_power_deinit(struct aw_sar *p_sar)
+{
+ if (p_sar->power_enable) {
+ //Turn off the power output. However,
+ //it may not be turned off immediately
+ //There are scenes where power sharing can exist
+ regulator_disable(p_sar->vcc);
+ regulator_put(p_sar->vcc);
+ }
+}
+
+static void aw_sar_power_enable(struct aw_sar *p_sar, bool on)
+{
+ int32_t rc;
+
+ if (on) {
+ rc = regulator_enable(p_sar->vcc);
+ if (rc) {
+ dev_err(p_sar->dev, "regulator_enable vol failed rc = %d", rc);
+ } else {
+ p_sar->power_enable = AW_TRUE;
+ msleep(20);
+ }
+ } else {
+ rc = regulator_disable(p_sar->vcc);
+ if (rc)
+ dev_err(p_sar->dev, "regulator_disable vol failed rc = %d", rc);
+ else
+ p_sar->power_enable = AW_FALSE;
+ }
+}
+
+static int32_t regulator_is_get_voltage(struct aw_sar *p_sar)
+{
+ uint32_t cnt = 10;
+ int32_t voltage_val;
+
+ while (cnt--) {
+ voltage_val = regulator_get_voltage(p_sar->vcc);
+ if (voltage_val >= AW_SAR_VCC_MIN_UV)
+ return 0;
+ mdelay(1);
+ }
+ //Ensure that the chip initialization is completed
+ msleep(20);
+
+ return -EINVAL;
+}
+//AW_SAR_REGULATOR_POWER_ON end
+
+static void aw_sar_init_lock(struct aw_sar *p_sar)
+{
+ //Initialize lock, To protect the thread safety of updating bin file
+ mutex_init(&aw_sar_lock);
+ //Required for mode setting
+ p_sar->last_mode = p_sar->p_sar_para->p_chip_mode->pre_init_mode;
+ p_sar->fw_fail_flag = AW_FALSE;
+ p_sar->ret_val = 0;
+}
+
+// AW_SAR_USB_PLUG_CAIL start
+static void aw_sar_ps_notify_callback_work(struct work_struct *work)
+{
+ struct aw_sar *p_sar = container_of(work, struct aw_sar, ps_notify_work);
+
+ aw_sar_aot(p_sar);
+}
+
+static int aw_sar_ps_get_state(struct aw_sar *p_sar, struct power_supply *psy, bool *present)
+{
+ union power_supply_propval pval = { 0 };
+ int retval;
+
+ retval = power_supply_get_property(psy, AW_USB_PROP_ONLINE, &pval);
+ if (retval) {
+ dev_err(p_sar->dev, "%s psy get property failed", psy->desc->name);
+ return retval;
+ }
+ *present = (pval.intval) ? true : false;
+
+ return 0;
+}
+
+static int aw_sar_ps_notify_callback(struct notifier_block *self,
+ unsigned long event, void *p)
+{
+ struct aw_sar *p_sar = container_of(self, struct aw_sar, ps_notif);
+ struct power_supply *psy = p;
+ bool present;
+ int retval;
+
+ if (event == PSY_EVENT_PROP_CHANGED
+ && psy && psy->desc->get_property && psy->desc->name &&
+ !strncmp(psy->desc->name, USB_POWER_SUPPLY_NAME,
+ sizeof(USB_POWER_SUPPLY_NAME))) {
+ retval = aw_sar_ps_get_state(p_sar, psy, &present);
+ if (retval) {
+ dev_err(p_sar->dev, "psy get property failed");
+ return retval;
+ }
+ if (event == PSY_EVENT_PROP_CHANGED) {
+ if (p_sar->ps_is_present == present)
+ return 0;
+ }
+ p_sar->ps_is_present = present;
+ schedule_work(&p_sar->ps_notify_work);
+ }
+ return 0;
+}
+
+static int aw_sar_ps_notify_init(struct aw_sar *p_sar)
+{
+ struct power_supply *psy;
+ int ret;
+
+ INIT_WORK(&p_sar->ps_notify_work, aw_sar_ps_notify_callback_work);
+ p_sar->ps_notif.notifier_call = (notifier_fn_t)aw_sar_ps_notify_callback;
+ ret = power_supply_reg_notifier(&p_sar->ps_notif);
+ if (ret) {
+ dev_err(p_sar->dev, "Unable to register ps_notifier: %d", ret);
+ return ret;
+ }
+ psy = power_supply_get_by_name(USB_POWER_SUPPLY_NAME);
+ if (!psy) {
+ dev_err(p_sar->dev, "Unable to get power_supply: %s", USB_POWER_SUPPLY_NAME);
+ goto free_ps_notifier;
+ }
+ ret = aw_sar_ps_get_state(p_sar, psy, &p_sar->ps_is_present);
+ if (ret) {
+ dev_err(p_sar->dev, "psy get property failed rc=%d", ret);
+ goto free_ps_notifier;
+ }
+ return 0;
+
+free_ps_notifier:
+ power_supply_unreg_notifier(&p_sar->ps_notif);
+
+ return -EINVAL;
+}
+// AW_SAR_USB_PLUG_CAIL end
+
+static int32_t aw_sar_platform_rsc_init(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ if (!p_sar->p_sar_para->p_platform_config)
+ return -EINVAL;
+
+ //step 1.parsing dts data
+ ret = aw_sar_parse_dts(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "parse dts error!");
+ return ret;
+ }
+
+ //Initialization lock and some variables
+ aw_sar_init_lock(p_sar);
+
+ //Configure whether to use USB plug-in calibration in DTS according to customer requirements
+ if (p_sar->dts_info.use_plug_cail_flag == true) {
+ ret = aw_sar_ps_notify_init(p_sar);
+ if (ret < 0) {
+ dev_err(p_sar->dev, "error creating power supply notify");
+ goto err_ps_notify_init;
+ }
+ }
+
+ //The interrupt pin is set to internal pull-up and configured by DTS
+ if (p_sar->dts_info.use_inter_pull_up == true) {
+ ret = aw_sar_pinctrl_init(p_sar);
+ if (ret < 0) {
+ /* if define pinctrl must define the following state
+ * to let int-pin work normally: default, int_output_high,
+ * int_output_low, int_input
+ */
+ dev_err(p_sar->dev, "Failed get wanted pinctrl state");
+ goto err_pinctrl_init;
+ }
+ aw_sar_int_output(p_sar, 1);
+ }
+
+ //step 2.Create debug file node
+ ret = aw_sar_create_node(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "create node error!");
+ goto err_sysfs_nodes;
+ }
+
+ //step 3.Initialization interrupt
+ ret = aw_sar_irq_init(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "interrupt initialization error!");
+ goto err_irq_init;
+ }
+
+ //step 4.Initialization input Subsystem
+ ret = aw_sar_input_init(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "input_init error!");
+ goto err_input_init;
+ }
+
+ return 0;
+
+err_input_init:
+ aw_sar_input_free(p_sar);
+ aw_sar_irq_free(p_sar);
+err_irq_init:
+ aw_sar_node_free(p_sar);
+err_sysfs_nodes:
+ if (p_sar->dts_info.use_inter_pull_up == true)
+ aw_sar_pinctrl_deinit(p_sar);
+err_pinctrl_init:
+ if (p_sar->dts_info.use_plug_cail_flag == true)
+ power_supply_unreg_notifier(&p_sar->ps_notif);
+err_ps_notify_init:
+ mutex_destroy(&aw_sar_lock);
+
+ return ret;
+}
+
+/**
+ * @aw_sar_chip_init() - sar sensor initialization logic.
+ *
+ * @p_sar data stored in type 'struct aw_sar *'.
+ * @return 0 if init succeeded. others if unpack error.
+ */
+static int32_t aw_sar_chip_init(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ //step 1.check chipid,Verify whether the chip communication is successful
+ ret = aw_sar_check_chipid(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "check_chipid error!");
+ goto communication_fail;
+ }
+
+ //step 2.Check chip initialization completed,
+ ret = aw_sar_soft_reset(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "soft_reset error!");
+ goto communication_fail;
+ }
+
+ ret = aw_sar_check_init_over_irq(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "check_init_over_irqt error!");
+ goto communication_fail;
+ }
+
+ //step 3.chip other operation
+ ret = aw_sar_chip_other_operation(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "chip_other_operation error!");
+ goto free_other_opera;
+ }
+
+ //step 4.Parse the bin file, upgrade the firmware, and load the register prize
+ aw_sar_update(p_sar);
+
+ return 0;
+
+free_other_opera:
+ aw_sar_chip_other_operation_free(p_sar);
+communication_fail:
+
+ return ret;
+}
+
+static int32_t aw_sar_init(struct aw_sar *p_sar)
+{
+ int32_t ret;
+
+ //step 1: Platform resource initialization
+ ret = aw_sar_platform_rsc_init(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "platform_rsc_init error!");
+ return ret;
+ }
+
+ //step 2: Chip initialization
+ ret = aw_sar_chip_init(p_sar);
+ if (ret != 0) {
+ aw_sar_input_free(p_sar);
+ aw_sar_irq_free(p_sar);
+ aw_sar_node_free(p_sar);
+ if (p_sar->dts_info.use_inter_pull_up == true)
+ aw_sar_pinctrl_deinit(p_sar);
+ if (p_sar->dts_info.use_plug_cail_flag == true)
+ power_supply_unreg_notifier(&p_sar->ps_notif);
+ mutex_destroy(&aw_sar_lock);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int32_t aw_sar_regulator_power(struct aw_sar *p_sar)
+{
+ struct aw_sar_dts_info *p_dts_info = &p_sar->dts_info;
+ int32_t ret = 0;
+
+ p_dts_info->use_regulator_flag =
+ of_property_read_bool(p_sar->i2c->dev.of_node, "awinic,regulator-power-supply");
+
+ //Configure the use of regulator power supply in DTS
+ if (p_sar->dts_info.use_regulator_flag == true) {
+ ret = aw_sar_regulator_power_init(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "power init failed");
+ return ret;
+ }
+ aw_sar_power_enable(p_sar, AW_TRUE);
+ ret = regulator_is_get_voltage(p_sar);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "get_voltage failed");
+ aw_sar_power_deinit(p_sar);
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * @aw_sar_get_chip_info() - Distinguish different chips by chip name and
+ * obtain relevant chip information
+ *
+ * @p_sar Structure to be filled
+ * @return 0 if init succeeded.
+ */
+static int32_t aw_sar_get_chip_info(struct aw_sar *p_sar)
+{
+ int32_t ret;
+ uint8_t i;
+
+ for (i = 0; i < AW_SAR_DRIVER_MAX; i++) {
+ if (g_aw_sar_driver_list[i].p_who_am_i != NULL) {
+ ret = g_aw_sar_driver_list[i].p_who_am_i(p_sar);
+ if (ret == 0) {
+ p_sar->curr_use_driver_type = g_aw_sar_driver_list[i].driver_type;
+ if (!g_aw_sar_driver_list[i].p_chip_init) {
+ dev_err(p_sar->dev,
+ "drvier:%d p_chip_init is null error!", i);
+ continue;
+ }
+ g_aw_sar_driver_list[i].p_chip_init(p_sar);
+ dev_info(p_sar->dev, "current use drvier is :%d",
+ g_aw_sar_driver_list[i].driver_type);
+ return 0;
+ }
+ }
+ }
+
+ return -EINVAL;
+}
+
+static void aw_sar_monitor_work(struct work_struct *aw_work)
+{
+ struct aw_sar *p_sar = container_of(aw_work, struct aw_sar, monitor_work.work);
+ uint32_t data;
+ int32_t ret;
+
+ ret = aw_sar_i2c_read(p_sar->i2c, 0x0000, &data);
+ if (ret != 0) {
+ dev_err(p_sar->dev, "read 0x0000 err: %d", ret);
+ return;
+ }
+ if (data == 0 && p_sar->driver_code_initover_flag) {
+ dev_err(p_sar->dev, "aw_chip may reset");
+ aw_sar_disable_irq(p_sar);
+ ret = aw_sar_chip_init(p_sar);
+ if (ret != 0)
+ return;
+ }
+ queue_delayed_work(p_sar->monitor_wq, &p_sar->monitor_work,
+ msecs_to_jiffies(AW_SAR_MONITOR_ESD_DELAY_MS));
+}
+
+static int32_t aw_sar_monitor_esd_init(struct aw_sar *p_sar)
+{
+ p_sar->monitor_wq = create_singlethread_workqueue("aw_sar_workqueue");
+ if (!p_sar->monitor_wq) {
+ dev_err(&p_sar->i2c->dev, "aw_sar_workqueue error");
+ return -EINVAL;
+ }
+ INIT_DELAYED_WORK(&p_sar->monitor_work, aw_sar_monitor_work);
+ queue_delayed_work(p_sar->monitor_wq, &p_sar->monitor_work,
+ msecs_to_jiffies(AW_SAR_MONITOR_ESD_DELAY_MS));
+
+ return 0;
+}
+
+static void aw_sar_sensor_free(struct aw_sar *p_sar)
+{
+ if (g_aw_sar_driver_list[p_sar->curr_use_driver_type].p_chip_deinit != NULL)
+ g_aw_sar_driver_list[p_sar->curr_use_driver_type].p_chip_deinit(p_sar);
+}
+
+
+/* Drive logic entry */
+static int32_t aw_sar_i2c_probe(struct i2c_client *i2c)
+{
+ struct aw_sar *p_sar;
+ int32_t ret;
+
+ if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) {
+ pr_err("check_functionality failed!\n");
+ return -EIO;
+ }
+
+ p_sar = devm_kzalloc(&i2c->dev, sizeof(struct aw_sar), GFP_KERNEL);
+ if (!p_sar) {
+ ret = -ENOMEM;
+ goto err_malloc;
+ }
+
+ p_sar->dev = &i2c->dev;
+ p_sar->i2c = i2c;
+ i2c_set_clientdata(i2c, p_sar);
+
+ //1.Judge whether to use regular power supply. If yes, supply power
+ ret = aw_sar_regulator_power(p_sar);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "regulator_power error!");
+ goto err_malloc;
+ }
+
+ //2.Get chip initialization resources
+ ret = aw_sar_get_chip_info(p_sar);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "chip_init error!");
+ goto err_chip_init;
+ }
+
+ //3.Chip initialization process
+ ret = aw_sar_init(p_sar);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "sar_init error!");
+ goto err_sar_init;
+ }
+
+ if (p_sar->dts_info.monitor_esd_flag) {
+ ret = aw_sar_monitor_esd_init(p_sar);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "monitor_esd_init error!");
+ goto err_esd_init;
+ }
+ }
+
+ dev_dbg(&i2c->dev, "probe success!");
+
+ return 0;
+
+err_esd_init:
+ aw_sar_input_free(p_sar);
+ aw_sar_irq_free(p_sar);
+ aw_sar_node_free(p_sar);
+ if (p_sar->dts_info.use_inter_pull_up == true)
+ aw_sar_pinctrl_deinit(p_sar);
+ if (p_sar->dts_info.use_plug_cail_flag == true)
+ power_supply_unreg_notifier(&p_sar->ps_notif);
+ mutex_destroy(&aw_sar_lock);
+err_sar_init:
+ aw_sar_sensor_free(p_sar);
+err_chip_init:
+if (p_sar->dts_info.use_regulator_flag == true)
+ aw_sar_power_deinit(p_sar);
+err_malloc:
+ return ret;
+}
+
+static void aw_sar_i2c_remove(struct i2c_client *i2c)
+{
+ struct aw_sar *p_sar = i2c_get_clientdata(i2c);
+
+ aw_sar_chip_other_operation_free(p_sar);
+
+ aw_sar_node_free(p_sar);
+
+ aw_sar_irq_free(p_sar);
+
+ aw_sar_input_free(p_sar);
+
+ if (p_sar->dts_info.use_inter_pull_up == true)
+ aw_sar_pinctrl_deinit(p_sar);
+
+ if (p_sar->dts_info.use_regulator_flag == true)
+ aw_sar_power_deinit(p_sar);
+
+ if (p_sar->dts_info.use_plug_cail_flag == true)
+ power_supply_unreg_notifier(&p_sar->ps_notif);
+
+ aw_sar_sensor_free(p_sar);
+}
+
+static int aw_sar_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct aw_sar *p_sar = i2c_get_clientdata(client);
+
+ if (p_sar->dts_info.use_pm == true) {
+ if ((!p_sar->p_sar_para->p_platform_config) ||
+ (!p_sar->p_sar_para->p_platform_config->p_pm_chip_mode))
+ return 0;
+ if (p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_suspend_fn) {
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_suspend_fn(p_sar);
+ return 0;
+ }
+ aw_sar_mode_set(p_sar,
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->suspend_set_mode);
+ }
+
+ if (p_sar->dts_info.monitor_esd_flag)
+ cancel_delayed_work_sync(&p_sar->monitor_work);
+
+ return 0;
+}
+
+static int aw_sar_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct aw_sar *p_sar = i2c_get_clientdata(client);
+
+ if (p_sar->dts_info.use_pm == true) {
+ if ((!p_sar->p_sar_para->p_platform_config) ||
+ (!p_sar->p_sar_para->p_platform_config->p_pm_chip_mode))
+ return 0;
+ if (p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_resume_fn) {
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_resume_fn(p_sar);
+ return 0;
+ }
+ aw_sar_mode_set(p_sar,
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->resume_set_mode);
+ }
+
+ if (p_sar->dts_info.monitor_esd_flag)
+ queue_delayed_work(p_sar->monitor_wq, &p_sar->monitor_work,
+ msecs_to_jiffies(AW_SAR_MONITOR_ESD_DELAY_MS));
+
+ return 0;
+}
+
+static void aw_sar_i2c_shutdown(struct i2c_client *i2c)
+{
+ struct aw_sar *p_sar = i2c_get_clientdata(i2c);
+
+ if ((!p_sar->p_sar_para->p_platform_config) ||
+ (!p_sar->p_sar_para->p_platform_config->p_pm_chip_mode))
+ return;
+
+ if (p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_shutdown_fn) {
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->p_shutdown_fn(p_sar);
+ return;
+ }
+
+ aw_sar_mode_set(p_sar,
+ p_sar->p_sar_para->p_platform_config->p_pm_chip_mode->shutdown_set_mode);
+}
+
+static const struct dev_pm_ops aw_sar_pm_ops = {
+ .suspend = aw_sar_suspend,
+ .resume = aw_sar_resume,
+};
+
+static const struct of_device_id aw_sar_dt_match[] = {
+ { .compatible = "awinic,aw96103" },
+ { .compatible = "awinic,aw96105" },
+ { .compatible = "awinic,aw96303" },
+ { .compatible = "awinic,aw96305" },
+ { .compatible = "awinic,aw96308" },
+ { },
+};
+
+static const struct i2c_device_id aw_sar_i2c_id[] = {
+ { AW_SAR_I2C_NAME, 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, aw_sar_i2c_id);
+
+static struct i2c_driver aw_sar_i2c_driver = {
+ .driver = {
+ .name = AW_SAR_I2C_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = aw_sar_dt_match,
+ .pm = &aw_sar_pm_ops,
+ },
+ .probe = aw_sar_i2c_probe,
+ .remove = aw_sar_i2c_remove,
+ .shutdown = aw_sar_i2c_shutdown,
+ .id_table = aw_sar_i2c_id,
+};
+
+static int32_t __init aw_sar_i2c_init(void)
+{
+ int32_t ret;
+
+ ret = i2c_add_driver(&aw_sar_i2c_driver);
+ if (ret) {
+ pr_err("fail to add aw_sar device into i2c\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+module_init(aw_sar_i2c_init);
+static void __exit aw_sar_i2c_exit(void)
+{
+ i2c_del_driver(&aw_sar_i2c_driver);
+}
+module_exit(aw_sar_i2c_exit);
+MODULE_DESCRIPTION("AWINIC SAR Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/misc/aw_sar/aw_sar.h b/drivers/input/misc/aw_sar/aw_sar.h
new file mode 100644
index 000000000000..7a139f56e9c3
--- /dev/null
+++ b/drivers/input/misc/aw_sar/aw_sar.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef AW_SAR_H_
+#define AW_SAR_H_
+
+void aw_sar_disable_irq(struct aw_sar *p_sar);
+void aw_sar_enable_irq(struct aw_sar *p_sar);
+
+int32_t aw_sar_soft_reset(struct aw_sar *p_sar);
+int32_t aw_sar_check_init_over_irq(struct aw_sar *p_sar);
+int32_t aw_sar_update_fw(struct aw_sar *p_sar);
+int32_t aw_sar_load_def_reg_bin(struct aw_sar *p_sar);
+void aw_sar_mode_set(struct aw_sar *p_sar, uint8_t curr_mode);
+int32_t aw_sar_update_reg_set_func(struct aw_sar *p_sar);
+
+#endif
--
2.45.1
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