From patchwork Wed Jun 5 09:11:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: wangshuaijie@awinic.com X-Patchwork-Id: 13686443 Received: from out28-194.mail.aliyun.com (out28-194.mail.aliyun.com [115.124.28.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9E8218F2DB; Wed, 5 Jun 2024 09:12:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717578741; cv=none; b=ZALjfvPoWC53O2ZlpghTEKw8bUEYInTEqB9tXuM6PuB097J5EbU2q5FtE872A60YDN5YnOh4xK+VOOun62gqqByow1LDn8fyGifSYCLdye3mWmVlNP6ANmyLrymPBObJKCk4GQj2lNUyxbcXAIwaXp4sj43kRSr5fNQFG2gFyFA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717578741; c=relaxed/simple; bh=/piz7l6LFaRFHzxtFtZIeSgtHht6c/yfmfAeT9uq3Bs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cGeaSSKk86iGzjfEMo6Brp/W16rQ/RfvwqPpAZiceCCjEXRp3zcdHs0XOy0pRLccRrCnG625Yt9A+tktGo1IoSvaZK+fysd01PQHJz5EM/RnQsB7j7denYg475o4CkkKYpRlldtUdvyEOrF/mC33IlPgWFwCMLlDVF9j7D+aHGg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=awinic.com; spf=pass smtp.mailfrom=awinic.com; arc=none smtp.client-ip=115.124.28.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=awinic.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=awinic.com X-Alimail-AntiSpam: AC=CONTINUE;BC=0.07436259|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_regular_dialog|0.0378758-0.000531947-0.961592;FP=0|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033068155186;MF=wangshuaijie@awinic.com;NM=1;PH=DS;RN=11;RT=11;SR=0;TI=SMTPD_---.XwdqTne_1717578726; Received: from awinic..(mailfrom:wangshuaijie@awinic.com fp:SMTPD_---.XwdqTne_1717578726) by smtp.aliyun-inc.com; Wed, 05 Jun 2024 17:12:07 +0800 From: wangshuaijie@awinic.com To: dmitry.torokhov@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jeff@labundy.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: wangshuaijie@awinic.com, liweilei@awinic.com, kangjiajun@awinic.com Subject: [PATCH V2 5/5] Add support for Awinic sar sensor. Date: Wed, 5 Jun 2024 09:11:43 +0000 Message-ID: <20240605091143.163789-6-wangshuaijie@awinic.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240605091143.163789-1-wangshuaijie@awinic.com> References: <20240605091143.163789-1-wangshuaijie@awinic.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: shuaijie wang Signed-off-by: shuaijie wang | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Reported-by: Dan Carpenter --- 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 + * + * 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