/* * Copyright (c) 2014 JY Kim, jy.kim@maximintegrated.com * Copyright (c) 2013 Maxim Integrated Products, Inc. * * This software is licensed under the terms of the GNU General Public * License, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA */ #include "max86902.h" #include #ifdef CONFIG_SENSORS_MAX_NOTCHFILTER #include "max_notchfilter/downsample.h" #endif #define MAX86900_I2C_RETRY_DELAY 10 #define MAX86900_I2C_MAX_RETRIES 5 #define MAX86900_COUNT_MAX 65532 #define MAX86902_COUNT_MAX 65532 #define MAX86900C_WHOAMI 0x11 #define MAX86900A_REV_ID 0x00 #define MAX86900B_REV_ID 0x04 #define MAX86900C_REV_ID 0x05 #define MAX86902_PART_ID1 0xFF #define MAX86902_PART_ID2 0x15 #define MAX86902_REV_ID1 0xFE #define MAX86902_REV_ID2 0x03 #define MAX86900_DEFAULT_CURRENT 0x55 #define MAX86900A_DEFAULT_CURRENT 0xFF #define MAX86900C_DEFAULT_CURRENT 0x0F #define MAX86902_DEFAULT_CURRENT1 0x00 //RED #define MAX86902_DEFAULT_CURRENT2 0x60 //IR #define MAX86902_DEFAULT_CURRENT3 0x60 //NONE #define MAX86902_DEFAULT_CURRENT4 0x60 //Violet #define MAX86902_DEFAULT_UV_SR_INTERVAL 100 /*ms*/ #define MAX86902_RE_ENABLE 200 /*ms*/ #define MODULE_NAME_HRM "hrm_sensor" #define MODULE_NAME_UV "uv_sensor" #define CHIP_NAME "MAX86902" #define MAX86900_CHIP_NAME "MAX86900" #define MAX86902_CHIP_NAME "MAX86902" #define VENDOR "MAXIM" #define HRM_LDO_ON 1 #define HRM_LDO_OFF 0 #define MAX_EOL_RESULT 132 #define MAX_LIB_VER 20 #define MAX86900_SAMPLE_RATE 4 #ifdef CONFIG_SENSORS_MAX_NOTCHFILTER #define MAX86902_SAMPLE_RATE 4 #else #define MAX86902_SAMPLE_RATE 1 #endif #define MAX86902_SPO2_ADC_RGE 2 #define MAX86902_ENHANCED_UV_GESTURE_MODE 1 #define MAX86902_ENHANCED_UV_HR_MODE 2 #define MAX86902_ENHANCED_UV_MODE 3 #define MAX86902_ENHANCED_UV_EOL_VB_MODE 4 #define MAX86902_ENHANCED_UV_EOL_SUM_MODE 5 #define MAX86902_ENHANCED_UV_EOL_HR_MODE 6 #define MAX86902_ENHANCED_UV_NONE_MODE 7 #define MAX86902_REENABLE_OFF 0 #define MAX86902_REENABLE_HRM 1 #define MAX86902_REENABLE_UV 2 #define MAX86902_REENABLE_FAIL 3 #define MAX86902_REENABLE_MAX_CNT 10 #define MAX86902_IRQ_ENABLE 1 #define MAX86902_IRQ_DISABLE 0 /* I2C function */ static int max86900_write_reg(struct max86900_device_data *device, u8 reg_addr, u8 data) { int err; int tries = 0; u8 buffer[2] = { reg_addr, data }; struct i2c_msg msgs[] = { { .addr = device->client->addr, .flags = device->client->flags & I2C_M_TEN, .len = 2, .buf = buffer, }, }; do { mutex_lock(&device->i2clock); err = i2c_transfer(device->client->adapter, msgs, 1); mutex_unlock(&device->i2clock); if (err != 1) if (!(device->dual_hrm && device->skip_i2c_msleep)) msleep_interruptible(MAX86900_I2C_RETRY_DELAY); } while ((err != 1) && (++tries < MAX86900_I2C_MAX_RETRIES)); if (err != 1) { pr_err("%s -write transfer error\n", __func__); err = -EIO; return err; } return 0; } static int max86900_read_reg(struct max86900_device_data *data, u8 *buffer, int length) { int err = -1; int tries = 0; /* # of attempts to read the device */ struct i2c_msg msgs[] = { { .addr = data->client->addr, .flags = data->client->flags & I2C_M_TEN, .len = 1, .buf = buffer, }, { .addr = data->client->addr, .flags = (data->client->flags & I2C_M_TEN) | I2C_M_RD, .len = length, .buf = buffer, }, }; do { mutex_lock(&data->i2clock); err = i2c_transfer(data->client->adapter, msgs, 2); mutex_unlock(&data->i2clock); if (err != 2) if (!(data->dual_hrm && data->skip_i2c_msleep)) msleep_interruptible(MAX86900_I2C_RETRY_DELAY); } while ((err != 2) && (++tries < MAX86900_I2C_MAX_RETRIES)); if (err != 2) { pr_err("%s -read transfer error\n", __func__); err = -EIO; } else err = 0; return err; } /* Device Control */ static int max86900_regulator_onoff(struct max86900_device_data *data, int onoff) { int rc = 0; pr_info("%s - onoff = %d\n", __func__, onoff); if (onoff == HRM_LDO_ON) { rc = regulator_set_voltage(data->vdd_1p8, 1800000, 1800000); if (rc < 0) { pr_err("%s - set vdd_1p8 failed, rc=%d\n", __func__, rc); return rc; } rc = regulator_enable(data->vdd_1p8); if (rc) { pr_err("%s - enable vdd_1p8 failed, rc=%d\n", __func__, rc); return rc; } rc = regulator_set_voltage(data->led_3p3, 3300000, 3300000); if (rc < 0) { pr_err("%s - set led_3p3 failed, rc=%d\n", __func__, rc); return rc; } rc = regulator_enable(data->led_3p3); if (rc) { pr_err("%s - enable led_3p3 failed, rc=%d\n", __func__, rc); return rc; } } else { rc = regulator_disable(data->vdd_1p8); if (rc) { pr_err("%s - disable vdd_1p8 failed, rc=%d\n", __func__, rc); return rc; } rc = regulator_disable(data->led_3p3); if (rc) { pr_err("%s - disable led_3p3 failed, rc=%d\n", __func__, rc); return rc; } } data->regulator_is_enable = (u8)onoff; return 0; } static int max86900_init_device(struct max86900_device_data *data) { int err; u8 recvData; mutex_lock(&data->activelock); err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } /* Interrupt Clear */ recvData = MAX86900_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x80); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_UV_CONFIGURATION, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_UV_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); pr_info("%s done, part_type = %u\n", __func__, data->part_type); return 0; } static int max86902_init_device(struct max86900_device_data *data) { int err = 0; u8 recvData; mutex_lock(&data->activelock); err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); mutex_unlock(&data->activelock); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); pr_info("%s done, part_type = %u\n", __func__, data->part_type); return 0; } static void irq_set_state(struct max86900_device_data *data, int irq_enable) { pr_info("%s - irq_enable : %d, irq_state : %d\n", __func__, irq_enable, data->irq_state); if (irq_enable) { if(!data->irq_state) { enable_irq(data->irq); data->irq_state++; } } else { if(data->irq_state) { disable_irq(data->irq); data->irq_state--; } } } static int max86900_hrm_enable(struct max86900_device_data *data) { int err; data->led = 0; data->sample_cnt = 0; data->ir_sum = 0; data->r_sum = 0; mutex_lock(&data->activelock); err = max86900_write_reg(data, MAX86900_INTERRUPT_ENABLE, 0x10); if (err != 0) { pr_err("%s - error initializing MAX86900_INTERRUPT_ENABLE!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #if MAX86900_SAMPLE_RATE == 1 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x47); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif #if MAX86900_SAMPLE_RATE == 2 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x4E); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif #if MAX86900_SAMPLE_RATE == 4 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x51); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, data->default_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_FIFO_WRITE_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_FIFO_WRITE_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_OVF_COUNTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_OVF_COUNTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_FIFO_READ_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_FIFO_READ_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x0B); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } irq_set_state(data, MAX86902_IRQ_ENABLE); mutex_unlock(&data->activelock); return 0; } static int max86902_hrm_enable(struct max86900_device_data *data) { int err; u8 flex_config[2] = {0, }; data->led = 0; data->sample_cnt = 0; #ifdef CONFIG_SENSORS_MAX_NOTCHFILTER downsample_init(); #else data->led_sum[0] = 0; data->led_sum[1] = 0; data->led_sum[2] = 0; data->led_sum[3] = 0; #endif data->num_samples = 0; data->flex_mode = 0; flex_config[0] = (IR_LED_CH << MAX86902_S2_OFFSET) | RED_LED_CH; flex_config[1] = 0x00; if (flex_config[0] & MAX86902_S1_MASK) { data->num_samples++; data->flex_mode |= (1 << 0); } if (flex_config[0] & MAX86902_S2_MASK) { data->num_samples++; data->flex_mode |= (1 << 1); } if (flex_config[1] & MAX86902_S3_MASK) { data->num_samples++; data->flex_mode |= (1 << 2); } if (flex_config[1] & MAX86902_S4_MASK) { data->num_samples++; data->flex_mode |= (1 << 3); } pr_info("%s - flexmode : 0x%02x, num_samples : %d\n", __func__, data->flex_mode, data->num_samples); mutex_lock(&data->activelock); /*write LED currents ir=1, red=2, violet=4*/ err = max86900_write_reg(data, MAX86902_LED1_PA, data->default_current1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->default_current2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, PPG_RDY_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_1, flex_config[0]); if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_1!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_2, flex_config[1]); if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_2!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0x0E | (0x03 << MAX86902_SPO2_ADC_RGE_OFFSET)); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #if MAX86902_SAMPLE_RATE == 1 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x02 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif #if MAX86902_SAMPLE_RATE == 2 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x01 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif #if MAX86902_SAMPLE_RATE == 4 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x00 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } #endif err = max86900_write_reg(data, MAX86902_FIFO_WRITE_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_WRITE_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_OVF_COUNTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_OVF_COUNTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_READ_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_READ_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } irq_set_state(data, MAX86902_IRQ_ENABLE); err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, MODE_FLEX); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); irq_set_state(data, MAX86902_IRQ_DISABLE); mutex_unlock(&data->activelock); return -EIO; } //Temperature Enable err = max86900_write_reg(data, MAX86902_TEMP_CONFIG, 0x01); if (err != 0) { pr_err("%s - error initializing MAX86902_TEMP_CONFIG!\n", __func__); irq_set_state(data, MAX86902_IRQ_DISABLE); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); if (data->reenable_cnt < MAX86902_REENABLE_MAX_CNT) { schedule_delayed_work(&data->reenable_work_queue, msecs_to_jiffies(MAX86902_RE_ENABLE)); data->reenable_set = MAX86902_REENABLE_HRM; } else { pr_err("%s - retry %d times, but fail stil!\n", __func__, data->reenable_cnt); data->reenable_cnt = 0; data->reenable_set = MAX86902_REENABLE_FAIL; } return 0; } static int max86900_uv_enable(struct max86900_device_data *data) { int err; data->led = 0; data->sample_cnt = 0; mutex_lock(&data->activelock); err = max86900_write_reg(data, MAX86900_INTERRUPT_ENABLE, 0x08); if (err != 0) { pr_err("%s - error initializing MAX86900_INTERRUPT_ENABLE!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x09); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } irq_set_state(data, MAX86902_IRQ_ENABLE); mutex_unlock(&data->activelock); return 0; } static int max86902_uv_init_fov_correction(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, 0xFF, 0x54); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST0!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0xFF, 0x4d); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST1!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x82, 0x04); if (err != 0) { pr_err("%s - error initializing 0x82!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x8f, 0x01); if (err != 0) { pr_err("%s - error initializing 0x8f!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x8e, 0x40); if (err != 0) { pr_err("%s - error initializing 0x8e!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x90, 0x00); if (err != 0) { pr_err("%s - error initializing 0x90!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0xFF, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST3!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED1_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED3_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED3_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_1, RED_LED_CH); /* IR/RED SWAPED */ if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_1!\n", __func__); return -EIO; } /* Interrupt 20th(32-20) */ err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (MAX86902_FIFO_ROLLS_ON_MASK | 0x0C)); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } return err; } static int max86902_uv_enable_gesture(struct max86900_device_data *data) { int err; int retry_cnt = 2; u8 recvData; data->sample_cnt = 0; data->num_samples = 1; data->sum_gesture_data = 0; do { err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); err = max86902_uv_init_fov_correction(data); /* 400 hz, PDMUX=1 */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0xEF); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, PPG_RDY_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, (MODE_GEST | MODE_FLEX)); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } pr_info("%s - retry_cnt = %d\n",__func__, retry_cnt--); } while(retry_cnt > 0 && !gpio_get_value_cansleep(data->hrm_int)); atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_GESTURE_MODE); return err; } static int max86902_uv_enable_hr(struct max86900_device_data *data) { int err; u8 recvData; data->num_samples = 20; err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); /* Temperature Enable */ err = max86900_write_reg(data, MAX86902_TEMP_CONFIG, 0x01); if (err != 0) { pr_err("%s - error initializing MAX86902_TEMP_CONFIG!\n", __func__); return -EIO; } err = max86902_uv_init_fov_correction(data); /* 400Hz */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0xEF); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, A_FULL_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, MODE_FLEX); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_HR_MODE); return err; } static int max86902_uv_enable_uv(struct max86900_device_data *data) { int err; u8 recvData; data->sample_cnt = 0; err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, 0x08); if (err != 0) { pr_err("%s - error init MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_UV_CONFIGURATION, 0x05); if (err != 0) { pr_err("%s - error init MAX86902_UV_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x01); if (err != 0) { pr_err("%s - error init MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_MODE); return err; } static int max86902_uv_enable(struct max86900_device_data *data) { int err; err = max86902_uv_enable_gesture(data); mutex_lock(&data->activelock); irq_set_state(data, MAX86902_IRQ_ENABLE); mutex_unlock(&data->activelock); if (data->reenable_cnt < MAX86902_REENABLE_MAX_CNT) { schedule_delayed_work(&data->reenable_work_queue, msecs_to_jiffies(MAX86902_RE_ENABLE)); data->reenable_set = MAX86902_REENABLE_UV; } else { pr_err("%s - retry %d times, but fail stil!\n", __func__, data->reenable_cnt); data->reenable_cnt = 0; data->reenable_set = MAX86902_REENABLE_FAIL; } return err; } static int max86902_uv_eol_init_fov_correction(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, 0xFF, 0x54); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST0!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0xFF, 0x4d); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST1!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x82, 0x04); if (err != 0) { pr_err("%s - error initializing 0x82!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x8f, 0x01); if (err != 0) { pr_err("%s - error initializing 0x8f!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x8e, 0x40); if (err != 0) { pr_err("%s - error initializing 0x8e!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0x90, 0x00); if (err != 0) { pr_err("%s - error initializing 0x90!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0xFF, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST3!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED1_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->led_current2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED3_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED3_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_1, RED_LED_CH); /* IR/RED SWAPED */ if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_1!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (MAX86902_FIFO_ROLLS_ON_MASK | 0x0C)); /* Interrupt 20th(32-20) */ if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } return err; } static int max86902_uv_eol_enable_vb(struct max86900_device_data *data) { int err; u8 recvData; data->sample_cnt = 0; data->num_samples = 1; err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); err = max86902_uv_eol_init_fov_correction(data); /* 100hz */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0xE7); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, PPG_RDY_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, (MODE_GEST | MODE_FLEX)); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_EOL_VB_MODE); return err; } static int max86902_uv_eol_enable_sum(struct max86900_device_data *data) { int err; u8 recvData; data->sample_cnt = 0; data->num_samples = 1; err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); err = max86902_uv_eol_init_fov_correction(data); /* 400 hz */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0x6F); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, PPG_RDY_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, (MODE_GEST | MODE_FLEX)); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_EOL_SUM_MODE); return err; } static int max86902_uv_eol_enable_hr(struct max86900_device_data *data) { int err; u8 recvData; data->num_samples = 20; err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error sw shutdown device!\n", __func__); return -EIO; } usleep_range(1000, 1100); err = max86902_uv_eol_init_fov_correction(data); /* 400Hz */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0xEF); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, A_FULL_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, MODE_FLEX); /* err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x02); */ if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); return -EIO; } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } atomic_set(&data->enhanced_uv_mode, MAX86902_ENHANCED_UV_EOL_HR_MODE); return err; } static int max86902_uv_eol_test_enable(struct max86900_device_data *data) { int err; err = max86902_uv_eol_enable_vb(data); return err; } static int max86900_disable(struct max86900_device_data *data) { int err; mutex_lock(&data->activelock); irq_set_state(data, MAX86902_IRQ_DISABLE); err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error init MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x80); if (err != 0) { pr_err("%s - error init MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); return 0; } static int max86902_disable(struct max86900_device_data *data) { int err; mutex_lock(&data->activelock); irq_set_state(data, MAX86902_IRQ_DISABLE); err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x40); if (err != 0) { pr_err("%s - error init MAX86902_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, 0x80); if (err != 0) { pr_err("%s - error init MAX86902_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } if (delayed_work_pending(&data->reenable_work_queue)) { cancel_delayed_work(&data->reenable_work_queue); data->reenable_set = MAX86902_REENABLE_OFF; data->reenable_cnt = 0; } mutex_unlock(&data->activelock); return 0; } static int max86900_read_temperature(struct max86900_device_data *data) { u8 recvData[2] = { 0x00, }; int err; recvData[0] = MAX86900_TEMP_INTEGER; err = max86900_read_reg(data, recvData, 2); if (err != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } data->hrm_temp = ((char)recvData[0]) * 16 + recvData[1]; pr_info("%s - %d(%x, %x)\n", __func__, data->hrm_temp, recvData[0], recvData[1]); return 0; } static int max86902_read_temperature(struct max86900_device_data *data) { u8 recvData[2] = { 0x00, }; int err; recvData[0] = MAX86902_TEMP_INTEGER; err = max86900_read_reg(data, recvData, 1); if (err != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } recvData[1] = MAX86902_TEMP_FRACTION; err = max86900_read_reg(data, &recvData[1], 1); if (err != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } data->hrm_temp = ((char)recvData[0]) * 16 + recvData[1]; err = max86900_write_reg(data, MAX86902_TEMP_CONFIG, 0x01); if (err != 0) { pr_err("%s - error initializing MAX86902_TEMP_CONFIG!\n", __func__); return -EIO; } pr_info("%s - %d(%x, %x)\n", __func__, data->hrm_temp, recvData[0], recvData[1]); return 0; } static int max86900_eol_test_control(struct max86900_device_data *data) { int err = 0; u8 led_current = 0; if (data->sample_cnt < data->hr_range2) { data->hr_range = 1; } else if (data->sample_cnt < (data->hr_range2 + 297)) { /* Fake pulse */ if (data->sample_cnt % 8 < 4) { data->test_current_ir++; data->test_current_red++; } else { data->test_current_ir--; data->test_current_red--; } led_current = (data->test_current_red << 4) | data->test_current_ir; err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, led_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); return -EIO; } data->hr_range = 2; } else if (data->sample_cnt == (data->hr_range2 + 297)) { /* Measure */ err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, data->led_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); return -EIO; } /* 400Hz setting */ err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x51); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); return -EIO; } } else if (data->sample_cnt < ((data->hr_range2 + 297) + 400 * 10)) { data->hr_range = 3; } else if (data->sample_cnt == ((data->hr_range2 + 297) + 400 * 10)) { err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, data->default_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); return -EIO; } #if MAX86900_SAMPLE_RATE == 1 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x47); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); return -EIO; } #endif #if MAX86900_SAMPLE_RATE == 2 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x4E); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); return -EIO; } #endif #if MAX86900_SAMPLE_RATE == 4 err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x51); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); return -EIO; } #endif } data->sample_cnt++; return 0; } static int max86902_eol_test_control(struct max86900_device_data *data) { int err = 0; if (data->sample_cnt < data->hr_range2) { data->hr_range = 1; } else if (data->sample_cnt < (data->hr_range2 + 297)) { /* Fake pulse */ if (data->sample_cnt % 8 < 4) { data->test_current_led1 += 0x10; data->test_current_led2 += 0x10; data->test_current_led3 += 0x10; data->test_current_led4 += 0x10; } else { data->test_current_led1 -= 0x10; data->test_current_led2 -= 0x10; data->test_current_led3 -= 0x10; data->test_current_led4 -= 0x10; } /*write LED currents ir=2, red=1, violet=4*/ err = max86900_write_reg(data, MAX86902_LED1_PA, data->test_current_led1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->test_current_led2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, data->test_current_led4); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } data->hr_range = 2; } else if (data->sample_cnt == (data->hr_range2 + 297)) { /* Measure */ /*write LED currents ir=1, red=2, violet=4*/ err = max86900_write_reg(data, MAX86902_LED1_PA, data->led_current1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->led_current2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, data->led_current4); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } /* 400Hz setting */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0x0E | (MAX86902_SPO2_ADC_RGE << MAX86902_SPO2_ADC_RGE_OFFSET)); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x00 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } } else if (data->sample_cnt < ((data->hr_range2 + 297) + 400 * 10)) { data->hr_range = 3; } else if (data->sample_cnt == ((data->hr_range2 + 297) + 400 * 10)) { /*write LED currents ir=1, red=2, violet=4*/ err = max86900_write_reg(data, MAX86902_LED1_PA, data->default_current1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->default_current2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, data->default_current4); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0x0E | (MAX86902_SPO2_ADC_RGE << MAX86902_SPO2_ADC_RGE_OFFSET)); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); return -EIO; } #if MAX86902_SAMPLE_RATE == 1 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x02 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } #endif #if MAX86902_SAMPLE_RATE == 2 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x01 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } #endif #if MAX86902_SAMPLE_RATE == 4 err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x01 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); return -EIO; } #endif } data->sample_cnt++; return 0; } static int max86900_hrm_read_data(struct max86900_device_data *device, u16 *data) { int err; u8 recvData[4] = { 0x00, }; int i; int ret = 0; if (device->sample_cnt == MAX86900_COUNT_MAX) device->sample_cnt = 0; recvData[0] = MAX86900_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, 4)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } for (i = 0; i < 2; i++) { data[i] = ((((u16)recvData[i*2]) << 8) & 0xff00) | (((u16)recvData[i*2+1]) & 0x00ff); } data[2] = device->led; if ((device->sample_cnt % 1000) == 1) pr_info("%s - %u, %u, %u, %u\n", __func__, data[0], data[1], data[2], data[3]); if (device->sample_cnt == 20 && device->led == 0) { err = max86900_read_temperature(device); if (err < 0) { pr_err("%s - max86900_read_temperature err : %d\n", __func__, err); return -EIO; } } if (device->eol_test_is_enable) { err = max86900_eol_test_control(device); if (err < 0) { pr_err("%s - max86900_eol_test_control err : %d\n", __func__, err); return -EIO; } } else { device->ir_sum += data[0]; device->r_sum += data[1]; if ((device->sample_cnt % MAX86900_SAMPLE_RATE) == MAX86900_SAMPLE_RATE - 1) { data[0] = device->ir_sum / MAX86900_SAMPLE_RATE; data[1] = device->r_sum / MAX86900_SAMPLE_RATE; device->ir_sum = 0; device->r_sum = 0; ret = 0; } else ret = 1; if (device->sample_cnt++ > 100 && device->led == 0) device->led = 1; } return ret; } static int max86902_hrm_read_data(struct max86900_device_data *device, int *data) { int err; u8 recvData[MAX_LED_NUM * NUM_BYTES_PER_SAMPLE] = { 0x00, }; int i, j = 0; int ret = 0; if (device->sample_cnt == MAX86902_COUNT_MAX) device->sample_cnt = 0; recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, device->num_samples * NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } for (i = 0; i < MAX_LED_NUM; i++) { if (device->flex_mode | (1 << i)) { data[i] = recvData[j++] << 16 & 0x30000; data[i] += recvData[j++] << 8; data[i] += recvData[j++] << 0; } else data[i] = 0; } data[4] = device->led; if ((device->sample_cnt % 1000) == 1) pr_info("%s - %u, %u, %u, %u\n", __func__, data[0], data[1], data[2], data[3]); if (device->sample_cnt == 20 && device->led == 0) { err = max86902_read_temperature(device); if (err < 0) { pr_err("%s - max86900_read_temperature err : %d\n", __func__, err); return -EIO; } } if (device->eol_test_is_enable) { err = max86902_eol_test_control(device); if (err < 0) { pr_err("%s - max86900_eol_test_control err : %d\n", __func__, err); return -EIO; } } else { for (i = 0; i < MAX_LED_NUM; i++ ) #ifdef CONFIG_SENSORS_MAX_NOTCHFILTER data[i] = downsample(data[i] >> 2, i) << 2; #else device->led_sum[i] += data[i]; #endif if ((device->sample_cnt % MAX86902_SAMPLE_RATE) == MAX86902_SAMPLE_RATE - 1) { #ifndef CONFIG_SENSORS_MAX_NOTCHFILTER for (i = 0; i < MAX_LED_NUM; i++) { data[i] = device->led_sum[i] / MAX86902_SAMPLE_RATE; device->led_sum[i] = 0; } #endif ret = 0; } else ret = 1; if (device->sample_cnt++ > 100 && device->led == 0) device->led = 1; } return ret; } static int max86900_uv_read_data(struct max86900_device_data *device, u16 *data) { int err; u8 recvData[2] = { 0x00, }; int ret = 0; if (device->sample_cnt == MAX86900_COUNT_MAX) device->sample_cnt = 0; recvData[0] = MAX86900_UV_DATA; if ((err = max86900_read_reg(device, recvData, 2)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } *data = ((((u16)recvData[0]) << 8) & 0x0f00) | ((((u16)recvData[1])) & 0x00ff); pr_info("%s - %u\n", __func__, *data); if (device->sample_cnt == 1 && device->led == 0) { err = max86900_read_temperature(device); if (err < 0) { pr_err("%s - max86900_read_temperature err : %d\n", __func__, err); return -EIO; } } if (device->sample_cnt++ > 0 && device->led == 0) device->led = 1; return ret; } static int max86902_uv_read_data_gesture(struct max86900_device_data *device, int *data) { int err; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; u8 recvData[NUM_BYTES_PER_SAMPLE] = { 0x00, }; int reg_data = 0; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & PPG_RDY_MASK) { recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } device->sample_cnt++; if (device->sample_cnt > 0 && device->sample_cnt <= 4) { reg_data = recvData[0] << 16 & 0x30000; reg_data += recvData[1] << 8; reg_data += recvData[2] << 0; if (((recvData[0] >> 6) == 1) || ((recvData[0] >> 6) == 3)) { device->sum_gesture_data += reg_data; pr_info("gest:%d,%d,%d\n", reg_data, recvData[0] >> 6, device->sum_gesture_data); } } if ( device->sample_cnt >= 4 ) { /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_vb(device); else err = max86902_uv_enable_hr(device); if (err < 0) { pr_err("%s - max86902_uv_enable_hr err : %d\n", __func__, err); return -EIO; } *data = device->sum_gesture_data; pr_info("%s - %u\n", __func__, *data); ret = MAX86902_ENHANCED_UV_GESTURE_MODE; } } return ret; } static int max86902_uv_read_data_hr(struct max86900_device_data *device, int *data) { int err; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; u8 recvData[20 * NUM_BYTES_PER_SAMPLE] = { 0x00, }; int reg_data = 0; int sum_data = 0; int i; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & A_FULL_MASK){ recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, device->num_samples * NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } for ( i = 16; i < 20; i++ ) { reg_data = recvData[i*NUM_BYTES_PER_SAMPLE+0] << 16 & 0x30000; reg_data += recvData[i*NUM_BYTES_PER_SAMPLE+1] << 8; reg_data += recvData[i*NUM_BYTES_PER_SAMPLE+2] << 0; pr_info("hr:%d,%d\n", reg_data, recvData[0] >> 6); sum_data += reg_data; } /* Read Temperature */ err = max86902_read_temperature(device); if (err < 0) { pr_err("%s - max86900_read_temperature err : %d\n", __func__, err); return -EIO; } /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_vb(device); else err = max86902_uv_enable_uv(device); if (err < 0) { pr_err("%s - max86902_uv_enable_uv err : %d\n", __func__, err); return -EIO; } *data = sum_data; pr_info("%s - %u\n", __func__, *data); ret = MAX86902_ENHANCED_UV_HR_MODE; } return ret; } static int max86902_uv_read_data_uv(struct max86900_device_data *device, int *data) { int err; u8 recvData[2] = { 0x00, }; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & UV_RDY_MASK) { recvData[0] = MAX86902_UV_DATA_HI; if ((err = max86900_read_reg(device, recvData, MAX_UV_DATA)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } *data = ((((int)recvData[0]) << 8) & 0x0f00) | ((((int)recvData[1])) & 0x00ff); /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_vb(device); else err = max86902_uv_enable_gesture(device); if (err < 0) { pr_err("%s - max86902_uv_enable_gesture err : %d\n", __func__, err); return -EIO; } pr_info("%s - %u\n", __func__, *data); ret = MAX86902_ENHANCED_UV_MODE; } return ret; } static int max86902_uv_eol_read_data_vb(struct max86900_device_data *device, int *data) { u8 err; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; u8 recvData[MAX_LED_NUM * NUM_BYTES_PER_SAMPLE] = { 0x00, }; int reg_data; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & PPG_RDY_MASK) { recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, device->num_samples * NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } device->sample_cnt++; if (device->sample_cnt > 16 && device->sample_cnt <= 20) { /* reg_data = recvData[0] << 16 & 0x30000; */ reg_data = recvData[0] << 16; reg_data += recvData[1] << 8; reg_data += recvData[2] << 0; pr_info("vb:%d,%d\n", (reg_data & 0x3ffff), reg_data >> 22); *data = reg_data; ret = MAX86902_ENHANCED_UV_EOL_VB_MODE; } if (device->sample_cnt >= 20) { /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_sum(device); else err = max86902_uv_enable_gesture(device); if (err < 0) { pr_err("%s - max86902_uv_eol_enable_sum err : %d\n", __func__, err); return -EIO; } } } return ret; } static int max86902_uv_eol_read_data_sum(struct max86900_device_data *device, int *data) { u8 err; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; u8 recvData[NUM_BYTES_PER_SAMPLE] = { 0x00, }; int reg_data = 0; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & PPG_RDY_MASK) { recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } device->sample_cnt++; reg_data = recvData[0] << 16 & 0x30000; reg_data += recvData[1] << 8; reg_data += recvData[2] << 0; pr_info("sum:%d,%d\n", reg_data, recvData[0] >> 6); if (device->sample_cnt >= 4) { /* ODO */ /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_hr(device); else err = max86902_uv_enable_gesture(device); if (err < 0) { pr_err("%s - max86902_uv_eol_enable_hr err : %d\n", __func__, err); return -EIO; } *data = reg_data; pr_info("%s - %u\n", __func__, *data); ret = MAX86902_ENHANCED_UV_EOL_SUM_MODE; } } return ret; } static int max86902_uv_eol_read_data_hr(struct max86900_device_data *device, int *data) { u8 err; int ret = MAX86902_ENHANCED_UV_NONE_MODE; u8 status; u8 recvData[20 * NUM_BYTES_PER_SAMPLE] = { 0x00, }; int reg_data = 0; int sum_data = 0; int i; status = MAX86902_INTERRUPT_STATUS; err = max86900_read_reg(device, &status, 1); if (err < 0) { pr_err("%s: read status err: %d\n", __func__, err); return -EIO; } if (status & A_FULL_MASK) { recvData[0] = MAX86902_FIFO_DATA; if ((err = max86900_read_reg(device, recvData, device->num_samples * NUM_BYTES_PER_SAMPLE)) != 0) { pr_err("%s max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData[0]); return -EIO; } for (i = 16; i < 20; i++) { reg_data = recvData[i*NUM_BYTES_PER_SAMPLE+0] << 16 & 0x30000; reg_data += recvData[i*NUM_BYTES_PER_SAMPLE+1] << 8; reg_data += recvData[i*NUM_BYTES_PER_SAMPLE+2] << 0; pr_info("eh:%d,%d\n", reg_data, recvData[0] >> 6); sum_data += reg_data; } /* Mode change */ if ( device->uv_eol_test_is_enable ) err = max86902_uv_eol_enable_vb(device); else err = max86902_uv_enable_gesture(device); if (err < 0) { pr_err("%s - max86902_uv_eol_enable_vb err : %d\n", __func__, err); return -EIO; } *data = sum_data; pr_info("%s - %u\n", __func__, *data); ret = MAX86902_ENHANCED_UV_EOL_HR_MODE; } return ret; } static int max86902_uv_read_data(struct max86900_device_data *device, int *data) { int err; switch (atomic_read(&device->enhanced_uv_mode)) { case MAX86902_ENHANCED_UV_GESTURE_MODE: err = max86902_uv_read_data_gesture(device, data); break; case MAX86902_ENHANCED_UV_HR_MODE: err = max86902_uv_read_data_hr(device, data); break; case MAX86902_ENHANCED_UV_MODE: err = max86902_uv_read_data_uv(device, data); break; case MAX86902_ENHANCED_UV_EOL_VB_MODE: err = max86902_uv_eol_read_data_vb(device, data); break; case MAX86902_ENHANCED_UV_EOL_SUM_MODE: err = max86902_uv_eol_read_data_sum(device, data); break; case MAX86902_ENHANCED_UV_EOL_HR_MODE: err = max86902_uv_eol_read_data_hr(device, data); break; default: err = -EIO; } return err; } void max86900_hrm_mode_enable(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); usleep_range(1000, 1100); err = max86900_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d\n", __func__, err); err = max86900_hrm_enable(data); if (err != 0) pr_err("max86900_hrm_enable err : %d\n", err); atomic_set(&data->hrm_is_enable, 1); } else { err = max86900_disable(data); if (err != 0) pr_err("max86900_disable err : %d\n", err); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) pr_err("%s max86900_regulator_off fail err = %d\n", __func__, err); atomic_set(&data->hrm_is_enable, 0); } pr_info("%s - part_type = %u, onoff = %d\n", __func__, data->part_type, onoff); } void max86902_hrm_mode_enable(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); usleep_range(1000, 1100); err = max86902_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d\n", __func__, err); err = max86902_hrm_enable(data); if (err != 0) pr_err("max86900_hrm_enable err : %d\n", err); atomic_set(&data->hrm_is_enable, 1); } else { err = max86902_disable(data); if (err != 0) pr_err("max86900_disable err : %d\n", err); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) pr_err("%s max86900_regulator_off fail err = %d\n", __func__, err); atomic_set(&data->hrm_is_enable, 0); } pr_info("%s - part_type = %u, onoff = %d\n", __func__, data->part_type, onoff); } void max86900_uv_mode_enable(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); usleep_range(1000, 1100); err = max86900_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d\n", __func__, err); err = max86900_uv_enable(data); if (err != 0) pr_err("max86900_uv_enable err : %d\n", err); atomic_set(&data->uv_is_enable, 1); } else { err = max86900_disable(data); if (err != 0) pr_err("max86900_disable err : %d\n", err); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) pr_err("%s max86900_regulator_off fail err = %d\n", __func__, err); atomic_set(&data->uv_is_enable, 0); } pr_info("%s - part_type = %u, onoff = %d\n", __func__, data->part_type, onoff); } void max86902_uv_mode_enable(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); usleep_range(1000, 1100); err = max86902_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d\n", __func__, err); err = max86902_uv_enable(data); if (err != 0) pr_err("max86900_uv_enable err : %d\n", err); atomic_set(&data->uv_is_enable, 1); } else { err = max86902_disable(data); if (err != 0) pr_err("max86900_disable err : %d\n", err); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) pr_err("%s max86900_regulator_off fail err = %d\n", __func__, err); atomic_set(&data->uv_is_enable, 0); } pr_info("%s - part_type = %u, onoff = %d\n", __func__, data->part_type, onoff); } /* hrm sysfs */ static ssize_t max86900_hrm_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return sprintf(buf, "%d\n", atomic_read(&data->hrm_is_enable)); } static ssize_t max86900_hrm_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct max86900_device_data *data = dev_get_drvdata(dev); int new_value; if (sysfs_streq(buf, "1")) new_value = 1; else if (sysfs_streq(buf, "0")) new_value = 0; else { pr_err("%s - invalid value %d\n", __func__, *buf); return -EINVAL; } if (data->part_type < PART_TYPE_MAX86902A) { if (atomic_read(&data->uv_is_enable)) max86900_uv_mode_enable(data, 0); max86900_hrm_mode_enable(data, new_value); } else { if (atomic_read(&data->uv_is_enable)) max86902_uv_mode_enable(data, 0); max86902_hrm_mode_enable(data, new_value); } return count; } static ssize_t max86900_hrm_poll_delay_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%lld\n", 10000000LL); } static ssize_t max86900_hrm_poll_delay_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("%s - hrm sensor delay was fixed as 10ms:%d:%d\n", __func__, atomic_read(&data->hrm_is_enable), data->reenable_set); return size; } static struct device_attribute dev_attr_hrm_enable = __ATTR(enable, S_IRUGO|S_IWUSR|S_IWGRP, max86900_hrm_enable_show, max86900_hrm_enable_store); static struct device_attribute dev_attr_hrm_poll_delay = __ATTR(poll_delay, S_IRUGO|S_IWUSR|S_IWGRP, max86900_hrm_poll_delay_show, max86900_hrm_poll_delay_store); static struct attribute *hrm_sysfs_attrs[] = { &dev_attr_hrm_enable.attr, &dev_attr_hrm_poll_delay.attr, NULL }; static struct attribute_group hrm_attribute_group = { .attrs = hrm_sysfs_attrs, }; /* uv sysfs */ static ssize_t max86900_uv_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return sprintf(buf, "%d\n", atomic_read(&data->uv_is_enable)); } static ssize_t max86900_uv_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct max86900_device_data *data = dev_get_drvdata(dev); int new_value; if (sysfs_streq(buf, "1")) new_value = 1; else if (sysfs_streq(buf, "0")) new_value = 0; else { pr_err("%s - invalid value %d\n", __func__, *buf); return -EINVAL; } if (data->part_type < PART_TYPE_MAX86902A) { if (atomic_read(&data->hrm_is_enable)) max86900_hrm_mode_enable(data, 0); max86900_uv_mode_enable(data, new_value); } else { if (atomic_read(&data->hrm_is_enable)) max86902_hrm_mode_enable(data, 0); max86902_uv_mode_enable(data, new_value); } return count; } static ssize_t max86900_uv_poll_delay_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%lld\n", 100000000LL); } static ssize_t max86900_uv_poll_delay_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("%s - uv sensor delay was fixed as 100ms:%d:%d\n", __func__, atomic_read(&data->uv_is_enable), data->reenable_set); return size; } static struct device_attribute dev_attr_uv_enable = __ATTR(enable, S_IRUGO|S_IWUSR|S_IWGRP, max86900_uv_enable_show, max86900_uv_enable_store); static struct device_attribute dev_attr_uv_poll_delay = __ATTR(poll_delay, S_IRUGO|S_IWUSR|S_IWGRP, max86900_uv_poll_delay_show, max86900_uv_poll_delay_store); static struct attribute *uv_sysfs_attrs[] = { &dev_attr_uv_enable.attr, &dev_attr_uv_poll_delay.attr, NULL }; static struct attribute_group uv_attribute_group = { .attrs = uv_sysfs_attrs, }; /* hrm test sysfs */ static int max86900_set_led_current(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, data->led_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); return -EIO; } pr_info("%s - led current = %u\n", __func__, data->led_current); return 0; } static int max86902_set_led_current1(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, MAX86902_LED1_PA, data->led_current1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); return -EIO; } pr_info("%s - led current = %u\n", __func__, data->led_current1); return 0; } static int max86902_set_led_current2(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, MAX86902_LED2_PA, data->led_current2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); return -EIO; } pr_info("%s - led current = %u\n", __func__, data->led_current2); return 0; } static int max86902_set_led_current3(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, MAX86902_LED3_PA, data->led_current3); if (err != 0) { pr_err("%s - error initializing MAX86902_LED3_PA!\n", __func__); return -EIO; } pr_info("%s - led current = %u\n", __func__, data->led_current3); return 0; } static int max86902_set_led_current4(struct max86900_device_data *data) { int err; err = max86900_write_reg(data, MAX86902_LED4_PA, data->led_current4); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); return -EIO; } pr_info("%s - led current = %u\n", __func__, data->led_current4); return 0; } static int max86900_set_hr_range(struct max86900_device_data *data) { pr_info("%s - hr_range = %u(0x%x)\n", __func__, data->hr_range, data->hr_range); return 0; } static int max86900_set_hr_range2(struct max86900_device_data *data) { pr_info("%s - hr_range2 = %u\n", __func__, data->hr_range2); return 0; } static int max86900_set_look_mode_ir(struct max86900_device_data *data) { pr_info("%s - look mode ir = %u\n", __func__, data->look_mode_ir); return 0; } static int max86900_set_look_mode_red(struct max86900_device_data *data) { pr_info("%s - look mode red = %u\n", __func__, data->look_mode_red); return 0; } static int max86900_hrm_eol_test_enable(struct max86900_device_data *data) { int err; u8 led_current; data->led = 1; /* Prevent resetting MAX86900_LED_CONFIGURATION */ data->sample_cnt = 0; pr_info("%s\n", __func__); mutex_lock(&data->activelock); /* Test Mode Setting Start */ data->hr_range = 0; /* Set test phase as 0 */ data->eol_test_status = 0; data->test_current_ir = data->look_mode_ir; data->test_current_red = data->look_mode_red; led_current = (data->test_current_red << 4) | data->test_current_ir; err = max86900_write_reg(data, MAX86900_INTERRUPT_ENABLE, 0x10); if (err != 0) { pr_err("%s - error initializing MAX86900_INTERRUPT_ENABLE!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_LED_CONFIGURATION, led_current); if (err != 0) { pr_err("%s - error initializing MAX86900_LED_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_SPO2_CONFIGURATION, 0x47); if (err != 0) { pr_err("%s - error initializing MAX86900_SPO2_CONFIGURATION!\n", __func__); return -EIO; } /* Clear FIFO */ err = max86900_write_reg(data, MAX86900_FIFO_WRITE_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_FIFO_WRITE_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_OVF_COUNTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_OVF_COUNTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86900_FIFO_READ_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_FIFO_READ_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } /* Shutdown Clear */ err = max86900_write_reg(data, MAX86900_MODE_CONFIGURATION, 0x0B); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); return 0; } static int max86902_hrm_eol_test_enable(struct max86900_device_data *data) { int err; u8 flex_config[2] = {0, }; data->led = 1; /* Prevent resetting MAX86902_LED_CONFIGURATION */ data->sample_cnt = 0; data->num_samples = 0; data->flex_mode = 0; flex_config[0] = (IR_LED_CH << MAX86902_S2_OFFSET) | RED_LED_CH; flex_config[1] = 0x00; if (flex_config[0] & MAX86902_S1_MASK) { data->num_samples++; data->flex_mode |= (1 << 0); } if (flex_config[0] & MAX86902_S2_MASK) { data->num_samples++; data->flex_mode |= (1 << 1); } if (flex_config[1] & MAX86902_S3_MASK) { data->num_samples++; data->flex_mode |= (1 << 2); } if (flex_config[1] & MAX86902_S4_MASK) { data->num_samples++; data->flex_mode |= (1 << 3); } pr_info("%s - flexmode : 0x%02x, num_samples : %d\n", __func__, data->flex_mode, data->num_samples); mutex_lock(&data->activelock); /* Test Mode Setting Start */ data->hr_range = 0; /* Set test phase as 0 */ data->eol_test_status = 0; data->test_current_led1 = ((data->look_mode_ir >> 4) & 0x0f) << 4; data->test_current_led2 = ((data->look_mode_ir) & 0x0f) << 4; data->test_current_led3 = ((data->look_mode_red >> 4) & 0x0f) << 4; data->test_current_led4 = ((data->look_mode_red) & 0x0f) << 4; /*write LED currents ir=1, red=2, violet=4*/ err = max86900_write_reg(data, MAX86902_LED1_PA, data->test_current_led1); if (err != 0) { pr_err("%s - error initializing MAX86902_LED1_PA!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED2_PA, data->test_current_led2); if (err != 0) { pr_err("%s - error initializing MAX86902_LED2_PA!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED4_PA, data->test_current_led4); if (err != 0) { pr_err("%s - error initializing MAX86902_LED4_PA!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_INTERRUPT_ENABLE, PPG_RDY_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_INTERRUPT_ENABLE!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_1, flex_config[0]); if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_1!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_LED_FLEX_CONTROL_2, flex_config[1]); if (err != 0) { pr_err("%s - error initializing MAX86902_LED_FLEX_CONTROL_2!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } /* 100Hz setting no average for calculating P2P */ err = max86900_write_reg(data, MAX86902_SPO2_CONFIGURATION, 0x07 | (MAX86902_SPO2_ADC_RGE << MAX86902_SPO2_ADC_RGE_OFFSET)); if (err != 0) { pr_err("%s - error initializing MAX86902_SPO2_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_CONFIG, (0x00 << MAX86902_SMP_AVE_OFFSET) & MAX86902_SMP_AVE_MASK); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_CONFIG!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_WRITE_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_WRITE_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_OVF_COUNTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_OVF_COUNTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_FIFO_READ_POINTER, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86902_FIFO_READ_POINTER!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } err = max86900_write_reg(data, MAX86902_MODE_CONFIGURATION, MODE_FLEX); if (err != 0) { pr_err("%s - error initializing MAX86902_MODE_CONFIGURATION!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } /* Temperature Enable */ err = max86900_write_reg(data, MAX86902_TEMP_CONFIG, 0x01); if (err != 0) { pr_err("%s - error initializing MAX86902_TEMP_CONFIG!\n", __func__); mutex_unlock(&data->activelock); return -EIO; } mutex_unlock(&data->activelock); return 0; } static void max86900_eol_test_onoff(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86900_hrm_eol_test_enable(data); data->eol_test_is_enable = 1; if (err != 0) pr_err("max86900_hrm_eol_test_enable err : %d\n", err); } else { pr_info("%s - eol test off\n", __func__); err = max86900_disable(data); if (err != 0) pr_err("max86900_disable err : %d\n", err); data->hr_range = 0; data->led_current = data->default_current; err = max86900_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d", __func__, err); err = max86900_hrm_enable(data); if (err != 0) pr_err("max86900_enable err : %d\n", err); data->eol_test_is_enable = 0; } pr_info("%s - onoff = %d\n", __func__, onoff); } static void max86902_eol_test_onoff(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86902_hrm_eol_test_enable(data); data->eol_test_is_enable = 1; if (err != 0) pr_err("max86902_hrm_eol_test_enable err : %d\n", err); } else { pr_info("%s - eol test off\n", __func__); err = max86902_disable(data); if (err != 0) pr_err("max86902_disable err : %d\n", err); data->hr_range = 0; data->led_current1 = data->default_current1; data->led_current2 = data->default_current2; data->led_current3 = data->default_current3; data->led_current4 = data->default_current4; err = max86902_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d", __func__, err); err = max86902_hrm_enable(data); if (err != 0) pr_err("max86902_enable err : %d\n", err); data->eol_test_is_enable = 0; } pr_info("%s - onoff = %d\n", __func__, onoff); } static int max86902_get_device_id(struct max86900_device_data *data, unsigned long long *device_id) { u8 recvData; int err; int low = 0; int high = 0; int clock_code = 0; int VREF_trim_code = 0; int IREF_trim_code = 0; int UVL_trim_code = 0; int SPO2_trim_code = 0; int ir_led_code = 0; int red_led_code = 0; int TS_trim_code = 0; if ( !atomic_read(&data->uv_is_enable) && !atomic_read(&data->hrm_is_enable)) { pr_info("%s - regulator on\n", __func__); err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) { pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); return -EIO; } usleep_range(1000, 1100); } *device_id = 0; err = max86900_write_reg(data, 0xFF, 0x54); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST0!\n", __func__); return -EIO; } err = max86900_write_reg(data, 0xFF, 0x4d); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST1!\n", __func__); return -EIO; } recvData = 0x8B; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } high = recvData; recvData = 0x8C; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } low = recvData; recvData = 0x88; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } clock_code = recvData; recvData = 0x89; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } VREF_trim_code = recvData & 0x0F; recvData = 0x8A; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } IREF_trim_code = (recvData >> 4) & 0x0F; UVL_trim_code = recvData & 0x0F; recvData = 0x90; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } SPO2_trim_code = recvData & 0x7F; recvData = 0x98; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } ir_led_code = (recvData >> 4) & 0x0F; red_led_code = recvData & 0x0F; recvData = 0x9D; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } TS_trim_code = recvData; err = max86900_write_reg(data, 0xFF, 0x00); if (err != 0) { pr_err("%s - error initializing MAX86900_MODE_TEST0!\n", __func__); return -EIO; } if ( !atomic_read(&data->uv_is_enable) && !atomic_read(&data->hrm_is_enable)) { pr_info("%s - regulator off\n", __func__); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) { pr_err("%s max86900_regulator_off fail err = %d\n", __func__, err); return -EIO; } } *device_id = clock_code * 16 + VREF_trim_code; *device_id = *device_id * 16 + IREF_trim_code; *device_id = *device_id * 16 + UVL_trim_code; *device_id = *device_id * 128 + SPO2_trim_code; *device_id = *device_id * 64 + ir_led_code; *device_id = *device_id * 64 + red_led_code; *device_id = *device_id * 16 + TS_trim_code; pr_info("%s - Device ID = %lld\n", __func__, *device_id); return 0; } static ssize_t max86900_hrm_name_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->part_type < PART_TYPE_MAX86902A) return snprintf(buf, PAGE_SIZE, "%s\n", MAX86900_CHIP_NAME); else return snprintf(buf, PAGE_SIZE, "%s\n", MAX86902_CHIP_NAME); } static ssize_t max86900_hrm_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", VENDOR); } static ssize_t led_current_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); if (data->part_type < PART_TYPE_MAX86902A) { err = kstrtou8(buf, 10, &data->led_current); if (err < 0) return err; err = max86900_set_led_current(data); if (err < 0) return err; data->default_current = data->led_current; } return size; } static ssize_t led_current_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - led_current = %u\n", __func__, data->led_current); return snprintf(buf, PAGE_SIZE, "%u\n", data->led_current); } static ssize_t led_current1_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->led_current1); if (err < 0) return err; err = max86902_set_led_current1(data); if (err < 0) return err; data->default_current1 = data->led_current1; return size; } static ssize_t led_current1_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - led_current1 = %u\n", __func__, data->led_current1); return snprintf(buf, PAGE_SIZE, "%u\n", data->led_current1); } static ssize_t led_current2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->led_current2); if (err < 0) return err; err = max86902_set_led_current2(data); if (err < 0) return err; data->default_current2 = data->led_current2; return size; } static ssize_t led_current2_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - led_current2 = %u\n", __func__, data->led_current2); return snprintf(buf, PAGE_SIZE, "%u\n", data->led_current2); } static ssize_t led_current3_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->led_current3); if (err < 0) return err; err = max86902_set_led_current3(data); if (err < 0) return err; data->default_current3 = data->led_current3; return size; } static ssize_t led_current3_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - led_current3 = %u\n", __func__, data->led_current3); return snprintf(buf, PAGE_SIZE, "%u\n", data->led_current3); } static ssize_t led_current4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->led_current4); if (err < 0) return err; err = max86902_set_led_current4(data); if (err < 0) return err; data->default_current4 = data->led_current4; return size; } static ssize_t led_current4_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - led_current4 = %u\n", __func__, data->led_current4); return snprintf(buf, PAGE_SIZE, "%u\n", data->led_current4); } static ssize_t hr_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->hr_range); if (err < 0) return err; err = max86900_set_hr_range(data); if (err < 0) return err; return size; } static ssize_t hr_range_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - hr_range = %x\n", __func__, data->hr_range); return snprintf(buf, PAGE_SIZE, "%u\n", data->hr_range); } static ssize_t hr_range2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->hr_range2); if (err < 0) return err; err = max86900_set_hr_range2(data); if (err < 0) return err; return size; } static ssize_t hr_range2_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - hr_range2 = %x\n", __func__, data->hr_range2); return snprintf(buf, PAGE_SIZE, "%u\n", data->hr_range2); } static ssize_t look_mode_ir_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->look_mode_ir); if (err < 0) return err; err = max86900_set_look_mode_ir(data); if (err < 0) return err; return size; } static ssize_t look_mode_ir_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - look_mode_ir = %x\n", __func__, data->look_mode_ir); return snprintf(buf, PAGE_SIZE, "%u\n", data->look_mode_ir); } static ssize_t look_mode_red_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou8(buf, 10, &data->look_mode_red); if (err < 0) return err; err = max86900_set_look_mode_red(data); if (err < 0) return err; return size; } static ssize_t look_mode_red_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - look_mode_red = %x\n", __func__, data->look_mode_red); return snprintf(buf, PAGE_SIZE, "%u\n", data->look_mode_red); } static ssize_t eol_test_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int test_onoff; struct max86900_device_data *data = dev_get_drvdata(dev); if (sysfs_streq(buf, "1")) /* eol_test start */ test_onoff = 1; else if (sysfs_streq(buf, "0")) /* eol_test stop */ test_onoff = 0; else { pr_debug("max86900_%s: invalid value %d\n", __func__, *buf); return -EINVAL; } if (data->eol_test_is_enable == test_onoff) { pr_err("%s: invalid eol status Pre: %d, AF : %d\n", __func__, data->eol_test_is_enable, test_onoff); return -EINVAL; } if (data->part_type < PART_TYPE_MAX86902A) max86900_eol_test_onoff(data, test_onoff); else max86902_eol_test_onoff(data, test_onoff); return size; } static ssize_t eol_test_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return snprintf(buf, PAGE_SIZE, "%u\n", data->eol_test_is_enable); } static ssize_t eol_test_result_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct max86900_device_data *data = dev_get_drvdata(dev); unsigned int buf_len; buf_len = strlen(buf) + 1; if (buf_len > MAX_EOL_RESULT) buf_len = MAX_EOL_RESULT; if (data->eol_test_result != NULL) kfree(data->eol_test_result); data->eol_test_result = kzalloc(sizeof(char) * buf_len, GFP_KERNEL); if (data->eol_test_result == NULL) { pr_err("max86900_%s - couldn't allocate memory\n", __func__); return -ENOMEM; } strncpy(data->eol_test_result, buf, buf_len); pr_info("max86900_%s - result = %s, buf_len(%u)\n", __func__, data->eol_test_result, buf_len); data->eol_test_status = 1; return size; } static ssize_t eol_test_result_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->eol_test_result == NULL) { pr_info("max86900_%s - data->eol_test_result is NULL\n", __func__); data->eol_test_status = 0; return snprintf(buf, PAGE_SIZE, "%s\n", "NO_EOL_TEST"); } pr_info("max86900_%s - result = %s\n", __func__, data->eol_test_result); data->eol_test_status = 0; return snprintf(buf, PAGE_SIZE, "%s\n", data->eol_test_result); } static ssize_t eol_test_status_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return snprintf(buf, PAGE_SIZE, "%u\n", data->eol_test_status); } static ssize_t int_pin_check(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); int err = -1; int pin_state = -1; u8 recvData; /* DEVICE Power-up */ err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) { pr_err("max86900_%s - regulator on fail\n", __func__); goto exit; } usleep_range(1000, 1100); /* check INT pin state */ pin_state = gpio_get_value_cansleep(data->hrm_int); if (pin_state) { pr_err("max86900_%s - INT pin state is high before INT clear\n", __func__); err = -1; max86900_regulator_onoff(data, HRM_LDO_OFF); goto exit; } pr_info("max86900_%s - Before INT clear %d\n", __func__, pin_state); /* Interrupt Clear */ recvData = MAX86900_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("max86900_%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); max86900_regulator_onoff(data, HRM_LDO_OFF); goto exit; } /* check INT pin state */ pin_state = gpio_get_value_cansleep(data->hrm_int); if (!pin_state) { pr_err("max86900_%s - INT pin state is low after INT clear\n", __func__); err = -1; max86900_regulator_onoff(data, HRM_LDO_OFF); goto exit; } pr_info("max86900_%s - After INT clear %d\n", __func__, pin_state); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) pr_err("max86900_%s - regulator off fail\n", __func__); pr_info("max86900_%s - success\n", __func__); exit: return snprintf(buf, PAGE_SIZE, "%d\n", err); } static ssize_t max86900_lib_ver_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct max86900_device_data *data = dev_get_drvdata(dev); unsigned int buf_len; buf_len = strlen(buf) + 1; if (buf_len > MAX_LIB_VER) buf_len = MAX_LIB_VER; if (data->lib_ver != NULL) kfree(data->lib_ver); data->lib_ver = kzalloc(sizeof(char) * buf_len, GFP_KERNEL); if (data->lib_ver == NULL) { pr_err("%s - couldn't allocate memory\n", __func__); return -ENOMEM; } strncpy(data->lib_ver, buf, buf_len); pr_info("%s - lib_ver = %s\n", __func__, data->lib_ver); return size; } static ssize_t max86900_lib_ver_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->lib_ver == NULL) { pr_info("%s - data->lib_ver is NULL\n", __func__); return snprintf(buf, PAGE_SIZE, "%s\n", "NULL"); } pr_info("%s - lib_ver = %s\n", __func__, data->lib_ver); return snprintf(buf, PAGE_SIZE, "%s\n", data->lib_ver); } static ssize_t regulator_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int regulator_onoff; struct max86900_device_data *data = dev_get_drvdata(dev); if (sysfs_streq(buf, "1")) /* Regulator On */ regulator_onoff = HRM_LDO_ON; else if (sysfs_streq(buf, "0")) /* Regulator Off */ regulator_onoff = HRM_LDO_OFF; else { pr_debug("max86900_%s: invalid value %d\n", __func__, *buf); return -EINVAL; } if (data->regulator_is_enable != regulator_onoff) max86900_regulator_onoff(data, regulator_onoff); return size; } static ssize_t regulator_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return snprintf(buf, PAGE_SIZE, "%u\n", data->regulator_is_enable); } static ssize_t part_type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return snprintf(buf, PAGE_SIZE, "%u\n", data->part_type); } static ssize_t device_id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); unsigned long long device_id = 0; max86902_get_device_id(data, &device_id); return snprintf(buf, PAGE_SIZE, "%lld\n", device_id); } static struct device_attribute dev_attr_hrm_name = __ATTR(name, S_IRUGO, max86900_hrm_name_show, NULL); static struct device_attribute dev_attr_hrm_vendor = __ATTR(vendor, S_IRUGO, max86900_hrm_vendor_show, NULL); static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR | S_IWGRP, led_current_show, led_current_store); static DEVICE_ATTR(led_current1, S_IRUGO | S_IWUSR | S_IWGRP, led_current1_show, led_current1_store); static DEVICE_ATTR(led_current2, S_IRUGO | S_IWUSR | S_IWGRP, led_current2_show, led_current2_store); static DEVICE_ATTR(led_current3, S_IRUGO | S_IWUSR | S_IWGRP, led_current3_show, led_current3_store); static DEVICE_ATTR(led_current4, S_IRUGO | S_IWUSR | S_IWGRP, led_current4_show, led_current4_store); static DEVICE_ATTR(hr_range, S_IRUGO | S_IWUSR | S_IWGRP, hr_range_show, hr_range_store); static DEVICE_ATTR(hr_range2, S_IRUGO | S_IWUSR | S_IWGRP, hr_range2_show, hr_range2_store); static DEVICE_ATTR(look_mode_ir, S_IRUGO | S_IWUSR | S_IWGRP, look_mode_ir_show, look_mode_ir_store); static DEVICE_ATTR(look_mode_red, S_IRUGO | S_IWUSR | S_IWGRP, look_mode_red_show, look_mode_red_store); static DEVICE_ATTR(eol_test, S_IRUGO | S_IWUSR | S_IWGRP, eol_test_show, eol_test_store); static DEVICE_ATTR(eol_test_result, S_IRUGO | S_IWUSR | S_IWGRP, eol_test_result_show, eol_test_result_store); static DEVICE_ATTR(eol_test_status, S_IRUGO, eol_test_status_show, NULL); static DEVICE_ATTR(int_pin_check, S_IRUGO, int_pin_check, NULL); static DEVICE_ATTR(lib_ver, S_IRUGO | S_IWUSR | S_IWGRP, max86900_lib_ver_show, max86900_lib_ver_store); static DEVICE_ATTR(regulator, S_IRUGO | S_IWUSR | S_IWGRP, regulator_show, regulator_store); static DEVICE_ATTR(part_type, S_IRUGO, part_type_show, NULL); static DEVICE_ATTR(device_id, S_IRUGO, device_id_show, NULL); static struct device_attribute *hrm_sensor_attrs[] = { &dev_attr_hrm_name, &dev_attr_hrm_vendor, &dev_attr_led_current, &dev_attr_led_current1, &dev_attr_led_current2, &dev_attr_led_current3, &dev_attr_led_current4, &dev_attr_hr_range, &dev_attr_hr_range2, &dev_attr_look_mode_ir, &dev_attr_look_mode_red, &dev_attr_eol_test, &dev_attr_eol_test_result, &dev_attr_eol_test_status, &dev_attr_int_pin_check, &dev_attr_lib_ver, &dev_attr_regulator, &dev_attr_part_type, &dev_attr_device_id, NULL, }; static void max86902_uv_eol_test_onoff(struct max86900_device_data *data, int onoff) { int err; if (onoff) { err = max86902_uv_eol_test_enable(data); data->uv_eol_test_is_enable = 1; if (err != 0) pr_err("%s - max86902_uv_eol_test_enable err : %d\n", __func__, err); } else { pr_info("%s - eol test off\n", __func__); err = max86902_disable(data); if (err != 0) pr_err("%s - max86902_disable err : %d\n", __func__, err); err = max86902_init_device(data); if (err) pr_err("%s - max86900_init device fail err = %d", __func__, err); err = max86902_uv_enable(data); if (err != 0) pr_err("%s - max86902_enable err : %d\n", __func__, err); data->uv_eol_test_is_enable = 0; } pr_info("%s - onoff = %d\n", __func__, onoff); } /* uv test sysfs */ static ssize_t max86900_uv_name_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->part_type < PART_TYPE_MAX86902A) return snprintf(buf, PAGE_SIZE, "%s\n", "MAX86900_UV"); else return snprintf(buf, PAGE_SIZE, "%s\n", "MAX86902_UV"); } static ssize_t max86900_uv_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", VENDOR); } static ssize_t max86900_uv_lib_ver_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct max86900_device_data *data = dev_get_drvdata(dev); unsigned int buf_len; buf_len = strlen(buf) + 1; if (buf_len > MAX_LIB_VER) buf_len = MAX_LIB_VER; if (data->uv_lib_ver != NULL) kfree(data->uv_lib_ver); data->uv_lib_ver = kzalloc(sizeof(char) * buf_len, GFP_KERNEL); if (data->uv_lib_ver == NULL) { pr_err("%s - couldn't allocate memory\n", __func__); return -ENOMEM; } strncpy(data->uv_lib_ver, buf, buf_len); pr_info("%s - uv_lib_ver = %s\n", __func__, data->uv_lib_ver); return size; } static ssize_t max86900_uv_lib_ver_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->uv_lib_ver == NULL) { pr_info("%s - data->uv_lib_ver is NULL\n", __func__); return snprintf(buf, PAGE_SIZE, "%s\n", "NULL"); } pr_info("%s - lib_ver = %s\n", __func__, data->uv_lib_ver); return snprintf(buf, PAGE_SIZE, "%s\n", data->uv_lib_ver); } static ssize_t max86900_uv_sr_interval_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int err; struct max86900_device_data *data = dev_get_drvdata(dev); err = kstrtou16(buf, 10, &data->uv_sr_interval); if (err < 0) return err; return size; } static ssize_t max86900_uv_sr_interval_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); pr_info("max86900_%s - uv_sr_interval = %u\n", __func__, data->uv_sr_interval); return snprintf(buf, PAGE_SIZE, "%u\n", data->uv_sr_interval); } static ssize_t uv_eol_test_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { int test_onoff; struct max86900_device_data *data = dev_get_drvdata(dev); pr_err("%s: buf : %s\n", __func__, buf); if (sysfs_streq(buf, "1")) /* eol_test start */ test_onoff = 1; else if (sysfs_streq(buf, "0")) /* eol_test stop */ test_onoff = 0; else { pr_debug("max86900_%s: invalid value %d\n", __func__, *buf); return -EINVAL; } if (data->uv_eol_test_is_enable == test_onoff) { pr_err("%s: invalid eol status Pre: %d, AF : %d\n", __func__, data->uv_eol_test_is_enable, test_onoff); return -EINVAL; } pr_err("%s: test_onoff : %d\n", __func__, test_onoff); max86902_uv_eol_test_onoff(data, test_onoff); return size; } static ssize_t uv_eol_test_show(struct device *dev, struct device_attribute *attr, char *buf) { struct max86900_device_data *data = dev_get_drvdata(dev); return snprintf(buf, PAGE_SIZE, "%u\n", data->eol_test_is_enable); } static struct device_attribute dev_attr_uv_name = __ATTR(name, S_IRUGO, max86900_uv_name_show, NULL); static struct device_attribute dev_attr_uv_vendor = __ATTR(vendor, S_IRUGO, max86900_uv_vendor_show, NULL); static DEVICE_ATTR(uv_lib_ver, S_IRUGO | S_IWUSR | S_IWGRP, max86900_uv_lib_ver_show, max86900_uv_lib_ver_store); static DEVICE_ATTR(uv_sr_interval, S_IRUGO | S_IWUSR | S_IWGRP, max86900_uv_sr_interval_show, max86900_uv_sr_interval_store); static DEVICE_ATTR(uv_eol_test, S_IRUGO | S_IWUSR | S_IWGRP, uv_eol_test_show, uv_eol_test_store); static struct device_attribute *uv_sensor_attrs[] = { &dev_attr_uv_name, &dev_attr_uv_vendor, &dev_attr_uv_lib_ver, &dev_attr_uv_sr_interval, &dev_attr_uv_eol_test, NULL, }; static void max86900_hrm_irq_handler(struct max86900_device_data *data) { int err; u16 raw_data[4] = {0x00, }; err = max86900_hrm_read_data(data, raw_data); if (err < 0) pr_err("max86900_hrm_read_data err : %d\n", err); if (err == 0) { input_report_rel(data->hrm_input_dev, REL_X, raw_data[0] + 1); /* IR */ input_report_rel(data->hrm_input_dev, REL_Y, raw_data[1] + 1); /* RED */ input_report_rel(data->hrm_input_dev, REL_Z, data->hrm_temp + 1); input_sync(data->hrm_input_dev); } return; } static void max86902_hrm_irq_handler(struct max86900_device_data *data) { int err; int raw_data[5] = {0x00, }; err = max86902_hrm_read_data(data, raw_data); if (err < 0) pr_err("max86902_hrm_read_data err : %d\n", err); if (err == 0) { input_report_rel(data->hrm_input_dev, REL_X, raw_data[0] + 1); /* LED1 */ input_report_rel(data->hrm_input_dev, REL_Y, raw_data[1] + 1); /* LED2 */ input_report_rel(data->hrm_input_dev, REL_Z, data->hrm_temp + 1); /* Temperature */ input_report_rel(data->hrm_input_dev, REL_RX, raw_data[2] + 1); /* LED3 */ input_report_rel(data->hrm_input_dev, REL_RY, raw_data[3] + 1); /* LED4 */ input_sync(data->hrm_input_dev); } return; } static void max86900_uv_irq_handler(struct max86900_device_data *data) { int err; u16 raw_data = 0; err = max86900_uv_read_data(data, &raw_data); if (err < 0) pr_err("max86900_uv_read_data err : %d\n", err); if (err == 0) { input_report_rel(data->uv_input_dev, REL_X, raw_data + 1); /* UV Data */ input_report_rel(data->uv_input_dev, REL_Y, data->hrm_temp + 1); input_sync(data->uv_input_dev); } return; } static void max86902_uv_irq_handler(struct max86900_device_data *data) { int err; int raw_data = 0; err = max86902_uv_read_data(data, &raw_data); if (err < 0) pr_err("max86900_uv_read_data err : %d\n", err); switch(err) { case MAX86902_ENHANCED_UV_MODE: input_report_rel(data->uv_input_dev, REL_X, raw_data + 1); /* UV Data */ input_report_rel(data->uv_input_dev, REL_Y, data->hrm_temp + 1); input_sync(data->uv_input_dev); break; case MAX86902_ENHANCED_UV_GESTURE_MODE: case MAX86902_ENHANCED_UV_HR_MODE: case MAX86902_ENHANCED_UV_EOL_VB_MODE: case MAX86902_ENHANCED_UV_EOL_SUM_MODE: case MAX86902_ENHANCED_UV_EOL_HR_MODE: input_report_rel(data->uv_input_dev, REL_X, raw_data + 1); /* UV Data */ input_report_rel(data->uv_input_dev, REL_Y, -err); input_sync(data->uv_input_dev); break; default: return; } return; } irqreturn_t max86900_irq_handler(int irq, void *device) { struct max86900_device_data *data = device; u8 recvData; int err; if (data->reenable_set || data->reenable_cnt == MAX86902_REENABLE_MAX_CNT) { cancel_delayed_work(&data->reenable_work_queue); data->reenable_set = MAX86902_REENABLE_OFF; data->reenable_cnt = 0; pr_info("%s - cancel workqueue for reenable\n", __func__); } if (data->part_type < PART_TYPE_MAX86902A) { if (atomic_read(&data->hrm_is_enable)) max86900_hrm_irq_handler(data); else if (atomic_read(&data->uv_is_enable)) max86900_uv_irq_handler(data); } else { if (atomic_read(&data->hrm_is_enable)) max86902_hrm_irq_handler(data); else if (atomic_read(&data->uv_is_enable)) max86902_uv_irq_handler(data); } /* Interrupt Clear */ recvData = MAX86902_INTERRUPT_STATUS; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } /* Interrupt2 Clear */ recvData = MAX86902_INTERRUPT_STATUS_2; if ((err = max86900_read_reg(data, &recvData, 1)) != 0) { pr_err("%s - max86900_read_reg err:%d, address:0x%02x\n", __func__, err, recvData); return -EIO; } return IRQ_HANDLED; } static void uv_sr_set(struct work_struct *w) { int err; struct delayed_work *work_queue; struct max86900_device_data *data; work_queue = container_of(w, struct delayed_work, work); data = container_of(work_queue, struct max86900_device_data, uv_sr_work_queue); schedule_delayed_work(work_queue, msecs_to_jiffies(data->uv_sr_interval / 2)); /*Ready to Enable UV ADC convert*/ err = max86900_write_reg(data, MAX86900_TEST_ENABLE_PLETH, 0x00); if (err != 0) { printk("%s - error init MAX86900_TEST_ENABLE_PLETH!\n", __func__); return; } /*Enable UV ADC convert*/ err = max86900_write_reg(data, MAX86900_TEST_ENABLE_PLETH, 0x01); if (err != 0) { printk("%s - error init MAX86900_TEST_ENABLE_PLETH!\n", __func__); return; } return; } static void max86900_reenable_set(struct work_struct *w) { int err; struct delayed_work *work_queue; struct max86900_device_data *data; work_queue = container_of(w, struct delayed_work, work); data = container_of(work_queue, struct max86900_device_data, reenable_work_queue); pr_info("%s - start. renable cnt : %d\n", __func__, data->reenable_cnt); data->reenable_cnt++; /* first of all, disable irq for reenable of uvsensor */ mutex_lock(&data->activelock); irq_set_state(data, MAX86902_IRQ_DISABLE); mutex_unlock(&data->activelock); if (data->reenable_set == MAX86902_REENABLE_HRM) { err = max86902_init_device(data); if (err) pr_err("%s max86900_init device fail err = %d\n", __func__, err); err = max86902_hrm_enable(data); if (err != 0) pr_err("max86900_hrm_enable err : %d\n", err); if (data->eol_test_is_enable) { usleep_range(3000, 4000); pr_info("%s - now hrm eol mode\n", __func__); max86902_eol_test_onoff(data, 1); } } else if (data->reenable_set == MAX86902_REENABLE_UV) { err = max86902_uv_enable(data); if (err != 0) pr_err("max86902_uv_enable err : %d\n", err); if (data->uv_eol_test_is_enable) { usleep_range(3000, 4000); pr_info("%s - now uv eol mode\n", __func__); max86902_uv_eol_test_onoff(data, 1); } } } static int max86900_parse_dt(struct max86900_device_data *data, struct device *dev) { struct device_node *dNode = dev->of_node; enum of_gpio_flags flags; if (dNode == NULL) return -ENODEV; data->hrm_int = of_get_named_gpio_flags(dNode, "max86900,hrm_int-gpio", 0, &flags); if (data->hrm_int < 0) { pr_err("%s - get hrm_int error\n", __func__); return -ENODEV; } data->vdd_1p8 = devm_regulator_get(data->dev, "vdd_1p8"); if (IS_ERR(data->vdd_1p8)) { pr_err("%s - get vdd_1p8 error\n", __func__); return PTR_ERR(data->vdd_1p8); } data->led_3p3 = devm_regulator_get(data->dev, "led_3p3"); if (IS_ERR(data->led_3p3)) { pr_err("%s - get led_3p3 error\n", __func__); return PTR_ERR(data->led_3p3); } if (of_property_read_u32(dNode, "max86900,dual-hrm", &data->dual_hrm)) data->dual_hrm = 0; return 0; } static int max86900_gpio_setup(struct max86900_device_data *data) { int errorno = -EIO; errorno = gpio_request(data->hrm_int, "hrm_int"); if (errorno) { pr_err("%s - failed to request hrm_int\n", __func__); return errorno; } errorno = gpio_direction_input(data->hrm_int); if (errorno) { pr_err("%s - failed to set hrm_int as input\n", __func__); goto err_gpio_direction_input; } data->irq = gpio_to_irq(data->hrm_int); goto done; err_gpio_direction_input: gpio_free(data->hrm_int); done: return errorno; } static int max86900_setup_irq(struct max86900_device_data *data) { int errorno = -EIO; errorno = request_threaded_irq(data->irq, NULL, max86900_irq_handler, IRQF_TRIGGER_LOW|IRQF_ONESHOT, "hrm_sensor_irq", data); if (errorno < 0) { pr_err("%s - failed for setup irq errono= %d\n", __func__, errorno); errorno = -ENODEV; return errorno; } disable_irq(data->irq); return errorno; } int max86900_probe(struct i2c_client *client, const struct i2c_device_id *id) { int err = -ENODEV; u8 buffer[2] = {0, }; struct max86900_device_data *data; pr_info("%s - start\n", __func__); /* check to make sure that the adapter supports I2C */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { pr_err("%s - I2C_FUNC_I2C not supported\n", __func__); return -ENODEV; } /* allocate some memory for the device */ data = kzalloc(sizeof(struct max86900_device_data), GFP_KERNEL); if (data == NULL) { pr_err("%s - couldn't allocate memory\n", __func__); return -ENOMEM; } data->client = client; data->dev = &client->dev; i2c_set_clientdata(client, data); mutex_init(&data->i2clock); mutex_init(&data->activelock); data->irq_state = 0; data->hr_range = 0; data->skip_i2c_msleep = 1; err = max86900_parse_dt(data, &client->dev); if (err < 0) { pr_err("[SENSOR] %s - of_node error\n", __func__); err = -ENODEV; goto err_of_node; } err = max86900_gpio_setup(data); if (err) { pr_err("[SENSOR] %s - could not setup gpio\n", __func__); goto err_setup_gpio; } err = max86900_regulator_onoff(data, HRM_LDO_ON); if (err < 0) { pr_err("%s max86900_regulator_on fail err = %d\n", __func__, err); goto err_regulator_enable; } usleep_range(1000, 1100); data->client->addr = MAX86902_SLAVE_ADDR; buffer[0] = MAX86902_WHOAMI_REG_PART; err = max86900_read_reg(data, buffer, 1); if (buffer[0] == MAX86902_PART_ID1 || buffer[0] == MAX86902_PART_ID2) {/*Max86902*/ buffer[0] = MAX86902_WHOAMI_REG_REV; err = max86900_read_reg(data, buffer, 1); if (err) { pr_err("%s Max86902 WHOAMI read fail\n", __func__); err = -ENODEV; goto err_of_read_chipid; } if (buffer[0] == MAX86902_REV_ID1) data->part_type = PART_TYPE_MAX86902A; else if (buffer[0] == MAX86902_REV_ID2) data->part_type = PART_TYPE_MAX86902B; else { pr_err("%s Max86902 WHOAMI read error : REV ID : 0x%02x\n", __func__, buffer[0]); err = -ENODEV; goto err_of_read_chipid; } data->default_current1 = MAX86902_DEFAULT_CURRENT1; data->default_current2 = MAX86902_DEFAULT_CURRENT2; data->default_current3 = MAX86902_DEFAULT_CURRENT3; data->default_current4 = MAX86902_DEFAULT_CURRENT4; } else { data->client->addr = MAX86900A_SLAVE_ADDR; buffer[0] = MAX86900_WHOAMI_REG; err = max86900_read_reg(data, buffer, 2); if (buffer[1] == MAX86900C_WHOAMI) { /* MAX86900A & MAX86900B */ switch (buffer[0]) { case MAX86900A_REV_ID: data->part_type = PART_TYPE_MAX86900A; data->default_current = MAX86900A_DEFAULT_CURRENT; break; case MAX86900B_REV_ID: data->part_type = PART_TYPE_MAX86900B; data->default_current = MAX86900A_DEFAULT_CURRENT; break; case MAX86900C_REV_ID: data->part_type = PART_TYPE_MAX86900C; data->default_current = MAX86900C_DEFAULT_CURRENT; break; default: pr_err("%s WHOAMI read error : REV ID : 0x%02x\n", __func__, buffer[0]); err = -ENODEV; goto err_of_read_chipid; } pr_info("%s - MAX86900 OS21(0x%X), REV ID : 0x%02x\n", __func__, MAX86900A_SLAVE_ADDR, buffer[0]); } else { /* MAX86900 */ data->client->addr = MAX86900_SLAVE_ADDR; buffer[0] = MAX86900_WHOAMI_REG; err = max86900_read_reg(data, buffer, 2); if (err) { pr_err("%s WHOAMI read fail\n", __func__); err = -ENODEV; goto err_of_read_chipid; } data->part_type = PART_TYPE_MAX86900; data->default_current = MAX86900_DEFAULT_CURRENT; pr_info("%s - MAX86900 OS20 (0x%X)\n", __func__, MAX86900_SLAVE_ADDR); } } data->uv_sr_interval = MAX86902_DEFAULT_UV_SR_INTERVAL; data->led_current = data->default_current; data->led_current1 = data->default_current1; data->led_current2 = data->default_current2; data->led_current3 = data->default_current3; data->led_current4 = data->default_current4; /* allocate input device for HRM*/ data->hrm_input_dev = input_allocate_device(); if (!data->hrm_input_dev) { pr_err("%s - could not allocate input device\n", __func__); goto err_hrm_input_allocate_device; } input_set_drvdata(data->hrm_input_dev, data); data->hrm_input_dev->name = MODULE_NAME_HRM; input_set_capability(data->hrm_input_dev, EV_REL, REL_X); input_set_capability(data->hrm_input_dev, EV_REL, REL_Y); input_set_capability(data->hrm_input_dev, EV_REL, REL_Z); input_set_capability(data->hrm_input_dev, EV_REL, REL_RX); input_set_capability(data->hrm_input_dev, EV_REL, REL_RY); err = input_register_device(data->hrm_input_dev); if (err < 0) { input_free_device(data->hrm_input_dev); pr_err("%s - could not register input device\n", __func__); goto err_hrm_input_register_device; } err = sensors_create_symlink(data->hrm_input_dev); if (err < 0) { pr_err("%s - create_symlink error\n", __func__); goto err_hrm_sensors_create_symlink; } err = sysfs_create_group(&data->hrm_input_dev->dev.kobj, &hrm_attribute_group); if (err) { pr_err("[SENSOR] %s - could not create sysfs group\n", __func__); goto err_hrm_sysfs_create_group; } /* set sysfs for hrm sensor */ err = sensors_register(data->dev, data, hrm_sensor_attrs, MODULE_NAME_HRM); if (err) { pr_err("[SENSOR] %s - cound not register hrm_sensor(%d).\n", __func__, err); goto hrm_sensor_register_failed; } /* allocate input device for UV*/ data->uv_input_dev = input_allocate_device(); if (!data->uv_input_dev) { pr_err("%s - could not allocate input device\n", __func__); goto err_uv_input_allocate_device; } input_set_drvdata(data->uv_input_dev, data); data->uv_input_dev->name = MODULE_NAME_UV; input_set_capability(data->uv_input_dev, EV_REL, REL_X); input_set_capability(data->uv_input_dev, EV_REL, REL_Y); err = input_register_device(data->uv_input_dev); if (err < 0) { input_free_device(data->uv_input_dev); pr_err("%s - could not register input device\n", __func__); goto err_uv_input_register_device; } err = sensors_create_symlink(data->uv_input_dev); if (err < 0) { pr_err("%s - create_symlink error\n", __func__); goto err_uv_sensors_create_symlink; } err = sysfs_create_group(&data->uv_input_dev->dev.kobj, &uv_attribute_group); if (err) { pr_err("[SENSOR] %s - could not create sysfs group\n", __func__); goto err_uv_sysfs_create_group; } /* set sysfs for uv sensor */ err = sensors_register(data->dev, data, uv_sensor_attrs, MODULE_NAME_UV); if (err) { pr_err("[SENSOR] %s - cound not register hrm_sensor(%d).\n", __func__, err); goto uv_sensor_register_failed; } err = max86900_setup_irq(data); if (err) { pr_err("[SENSOR] %s - could not setup irq\n", __func__); goto err_setup_irq; } INIT_DELAYED_WORK(&data->uv_sr_work_queue, uv_sr_set); INIT_DELAYED_WORK(&data->reenable_work_queue, max86900_reenable_set); data->reenable_set = MAX86902_REENABLE_OFF; data->reenable_cnt = 0; data->eol_test_is_enable = 0; data->uv_eol_test_is_enable = 0; /* Init Device */ err = max86900_init_device(data); if (err) { pr_err("%s max86900_init device fail err = %d", __func__, err); goto max86900_init_device_failed; } dev_set_drvdata(data->dev, data); err = max86900_regulator_onoff(data, HRM_LDO_OFF); if (err < 0) { pr_err("%s max86900_regulator_off fail(%d, %d)\n", __func__, err, HRM_LDO_OFF); goto dev_set_drvdata_failed; } data->skip_i2c_msleep = 0; pr_info("%s success\n", __func__); goto done; dev_set_drvdata_failed: max86900_init_device_failed: err_setup_irq: sensors_unregister(data->dev, uv_sensor_attrs); uv_sensor_register_failed: err_uv_sysfs_create_group: sensors_remove_symlink(data->uv_input_dev); err_uv_sensors_create_symlink: input_unregister_device(data->uv_input_dev); err_uv_input_register_device: err_uv_input_allocate_device: sensors_unregister(data->dev, hrm_sensor_attrs); hrm_sensor_register_failed: err_hrm_sysfs_create_group: sensors_remove_symlink(data->hrm_input_dev); err_hrm_sensors_create_symlink: input_unregister_device(data->hrm_input_dev); err_hrm_input_register_device: err_hrm_input_allocate_device: err_of_read_chipid: max86900_regulator_onoff(data, HRM_LDO_OFF); err_regulator_enable: gpio_free(data->hrm_int); err_setup_gpio: err_of_node: mutex_destroy(&data->i2clock); mutex_destroy(&data->activelock); kfree(data); pr_err("%s failed\n", __func__); done: return err; } /* * Remove function for this I2C driver. */ int max86900_remove(struct i2c_client *client) { pr_info("%s\n", __func__); free_irq(client->irq, NULL); return 0; } static void max86900_shutdown(struct i2c_client *client) { pr_info("%s\n", __func__); } static int max86900_pm_suspend(struct device *dev) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->part_type < PART_TYPE_MAX86902A) { if (atomic_read(&data->hrm_is_enable)) { max86900_hrm_mode_enable(data, HRM_LDO_OFF); atomic_set(&data->is_suspend, 1); } else if (atomic_read(&data->uv_is_enable)) { max86900_uv_mode_enable(data, HRM_LDO_OFF); atomic_set(&data->is_suspend, 2); } } else { if (atomic_read(&data->hrm_is_enable)) { max86902_hrm_mode_enable(data, HRM_LDO_OFF); atomic_set(&data->is_suspend, 1); } else if (atomic_read(&data->uv_is_enable)) { max86902_uv_mode_enable(data, HRM_LDO_OFF); atomic_set(&data->is_suspend, 2); } } pr_info("%s\n", __func__); return 0; } static int max86900_pm_resume(struct device *dev) { struct max86900_device_data *data = dev_get_drvdata(dev); if (data->part_type < PART_TYPE_MAX86902A) { if (atomic_read(&data->is_suspend) == 1) { max86900_hrm_mode_enable(data, HRM_LDO_ON); atomic_set(&data->is_suspend, 0); } else if (atomic_read(&data->is_suspend) == 2) { max86900_uv_mode_enable(data, HRM_LDO_ON); atomic_set(&data->is_suspend, 0); } } else { if (atomic_read(&data->is_suspend) == 1) { max86902_hrm_mode_enable(data, HRM_LDO_ON); atomic_set(&data->is_suspend, 0); } else if (atomic_read(&data->is_suspend) == 2) { max86902_uv_mode_enable(data, HRM_LDO_ON); atomic_set(&data->is_suspend, 0); } } pr_info("%s\n", __func__); return 0; } static const struct dev_pm_ops max86900_pm_ops = { .suspend = max86900_pm_suspend, .resume = max86900_pm_resume }; static struct of_device_id max86900_match_table[] = { { .compatible = "maxim,max86900",}, { .compatible = "maxim,max86902",}, {}, }; static const struct i2c_device_id max86900_device_id[] = { { "max86900_match_table", 0 }, { "max86902_match_table", 0 }, { } }; /* descriptor of the max86900 I2C driver */ static struct i2c_driver max86900_i2c_driver = { .driver = { .name = CHIP_NAME, .owner = THIS_MODULE, .pm = &max86900_pm_ops, .of_match_table = max86900_match_table, }, .probe = max86900_probe, .shutdown = max86900_shutdown, .remove = max86900_remove, .id_table = max86900_device_id, }; /* initialization and exit functions */ static int __init max86902_init(void) { return i2c_add_driver(&max86900_i2c_driver); } static void __exit max86902_exit(void) { i2c_del_driver(&max86900_i2c_driver); } module_init(max86902_init); module_exit(max86902_exit); MODULE_DESCRIPTION("max86902 Driver"); MODULE_AUTHOR("Samsung Electronics"); MODULE_LICENSE("GPL");