/* * Author: yucong xiong * * This software is licensed under the terms of the GNU General Public * License version 2, 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. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "cust_alsps.h" #include "cm36686.h" #include #include #include #include #include /****************************************************************************** * configuration *******************************************************************************/ /*----------------------------------------------------------------------------*/ #define CM36686_DEV_NAME "cm36686" /*----------------------------------------------------------------------------*/ #define APS_TAG "[ALS/PS] " #define APS_FUN(f) pr_err(APS_TAG"%s\n", __func__) #define APS_ERR(fmt, args...) pr_err(APS_TAG"%s %d : "fmt, __func__, __LINE__, ##args) #define APS_LOG(fmt, args...) pr_err(APS_TAG fmt, ##args) #define APS_DBG(fmt, args...) pr_err(APS_TAG fmt, ##args) #define I2C_FLAG_WRITE 0 #define I2C_FLAG_READ 1 /****************************************************************************** * extern functions *******************************************************************************/ static int cm36686_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id); static int cm36686_i2c_remove(struct i2c_client *client); static int cm36686_i2c_detect(struct i2c_client *client, struct i2c_board_info *info); static int cm36686_i2c_suspend(struct i2c_client *client, pm_message_t msg); static int cm36686_i2c_resume(struct i2c_client *client); /*----------------------------------------------------------------------------*/ static const struct i2c_device_id cm36686_i2c_id[] = { {CM36686_DEV_NAME, 0}, {} }; static unsigned long long int_top_time; /* Maintain alsps cust info here */ struct alsps_hw alsps_cust; static struct alsps_hw *hw = &alsps_cust; struct platform_device *alspsPltFmDev; /* For alsp driver get cust info */ struct alsps_hw *get_cust_alsps(void) { return &alsps_cust; } /*----------------------------------------------------------------------------*/ struct cm36686_priv { struct alsps_hw *hw; struct i2c_client *client; struct work_struct eint_work; /*misc */ u16 als_modulus; atomic_t i2c_retry; atomic_t als_suspend; atomic_t als_debounce; /*debounce time after enabling als */ atomic_t als_deb_on; /*indicates if the debounce is on */ #ifdef CONFIG_64BIT atomic64_t als_deb_end; /*the jiffies representing the end of debounce */ #else atomic_t als_deb_end; /*the jiffies representing the end of debounce */ #endif atomic_t ps_mask; /*mask ps: always return far away */ atomic_t ps_debounce; /*debounce time after enabling ps */ atomic_t ps_deb_on; /*indicates if the debounce is on */ #ifdef CONFIG_64BIT atomic64_t ps_deb_end; /*the jiffies representing the end of debounce */ #else atomic_t ps_deb_end; /*the jiffies representing the end of debounce */ #endif atomic_t ps_suspend; atomic_t trace; atomic_t init_done; struct device_node *irq_node; int irq; /*data */ u16 als; u16 ps; /* u8 _align; */ u16 als_level_num; u16 als_value_num; u32 als_level[C_CUST_ALS_LEVEL - 1]; u32 als_value[C_CUST_ALS_LEVEL]; int ps_cali; atomic_t als_cmd_val; /*the cmd value can't be read, stored in ram */ atomic_t ps_cmd_val; /*the cmd value can't be read, stored in ram */ atomic_t ps_thd_val_high; /*the cmd value can't be read, stored in ram */ atomic_t ps_thd_val_low; /*the cmd value can't be read, stored in ram */ atomic_t als_thd_val_high; /*the cmd value can't be read, stored in ram */ atomic_t als_thd_val_low; /*the cmd value can't be read, stored in ram */ atomic_t ps_thd_val; ulong enable; /*enable mask */ ulong pending_intr; /*pending interrupt */ }; /*----------------------------------------------------------------------------*/ #ifdef CONFIG_OF static const struct of_device_id alsps_of_match[] = { {.compatible = "mediatek,alsps"}, {}, }; #endif static struct i2c_driver cm36686_i2c_driver = { .probe = cm36686_i2c_probe, .remove = cm36686_i2c_remove, .detect = cm36686_i2c_detect, .suspend = cm36686_i2c_suspend, .resume = cm36686_i2c_resume, .id_table = cm36686_i2c_id, .driver = { .name = CM36686_DEV_NAME, #ifdef CONFIG_OF .of_match_table = alsps_of_match, #endif }, }; /*----------------------------------------------------------------------------*/ struct PS_CALI_DATA_STRUCT { int close; int far_away; int valid; }; /*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/ static struct i2c_client *cm36686_i2c_client; static struct cm36686_priv *cm36686_obj; static int intr_flag = 1; /* hw default away after enable. */ static int cm36686_local_init(void); static int cm36686_remove(void); static int cm36686_init_flag = -1; /* 0<==>OK -1 <==> fail */ static struct alsps_init_info cm36686_init_info = { .name = "cm36686", .init = cm36686_local_init, .uninit = cm36686_remove, }; /*----------------------------------------------------------------------------*/ static DEFINE_MUTEX(cm36686_mutex); /*----------------------------------------------------------------------------*/ typedef enum { CMC_BIT_ALS = 1, CMC_BIT_PS = 2, } CMC_BIT; /*-----------------------------CMC for debugging-------------------------------*/ typedef enum { CMC_TRC_ALS_DATA = 0x0001, CMC_TRC_PS_DATA = 0x0002, CMC_TRC_EINT = 0x0004, CMC_TRC_IOCTL = 0x0008, CMC_TRC_I2C = 0x0010, CMC_TRC_CVT_ALS = 0x0020, CMC_TRC_CVT_PS = 0x0040, CMC_TRC_CVT_AAL = 0x0080, CMC_TRC_DEBUG = 0x8000, } CMC_TRC; /*-----------------------------------------------------------------------------*/ int CM36686_i2c_master_operate(struct i2c_client *client, const char *buf, int count, int i2c_flag) { int res = 0; mutex_lock(&cm36686_mutex); switch (i2c_flag) { case I2C_FLAG_WRITE: client->addr &= I2C_MASK_FLAG; res = i2c_master_send(client, buf, count); client->addr &= I2C_MASK_FLAG; break; case I2C_FLAG_READ: client->addr &= I2C_MASK_FLAG; client->addr |= I2C_WR_FLAG; client->addr |= I2C_RS_FLAG; res = i2c_master_send(client, buf, count); client->addr &= I2C_MASK_FLAG; break; default: APS_LOG("CM36686_i2c_master_operate i2c_flag command not support!\n"); break; } if (res < 0) goto EXIT_ERR; mutex_unlock(&cm36686_mutex); return res; EXIT_ERR: mutex_unlock(&cm36686_mutex); APS_ERR("CM36686_i2c_master_operate fail\n"); return res; } /*----------------------------------------------------------------------------*/ static void cm36686_power(struct alsps_hw *hw, unsigned int on) { } /********************************************************************/ int cm36686_enable_ps(struct i2c_client *client, int enable) { struct cm36686_priv *obj = i2c_get_clientdata(client); int res; u8 databuf[3]; if (enable == 1) { APS_LOG("cm36686_enable_ps enable_ps\n"); databuf[0] = CM36686_REG_PS_CONF1_2; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_PS_EXIT_ERR; } APS_LOG("CM36686_REG_PS_CONF1_2 value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); databuf[2] = databuf[1]; databuf[1] = databuf[0] & 0xFE; databuf[0] = CM36686_REG_PS_CONF1_2; res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_PS_EXIT_ERR; } atomic_set(&obj->ps_deb_on, 1); #ifdef CONFIG_64BIT atomic64_set(&obj->ps_deb_end, jiffies + atomic_read(&obj->ps_debounce) / (1000 / HZ)); #else atomic_set(&obj->ps_deb_end, jiffies + atomic_read(&obj->ps_debounce) / (1000 / HZ)); #endif intr_flag = 1; /* reset hw status to away after enable. */ } else { APS_LOG("cm36686_enable_ps disable_ps\n"); databuf[0] = CM36686_REG_PS_CONF1_2; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_PS_EXIT_ERR; } APS_LOG("CM36686_REG_PS_CONF1_2 value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); databuf[2] = databuf[1]; databuf[1] = databuf[0] | 0x01; databuf[0] = CM36686_REG_PS_CONF1_2; res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_PS_EXIT_ERR; } atomic_set(&obj->ps_deb_on, 0); } return 0; ENABLE_PS_EXIT_ERR: return res; } /********************************************************************/ int cm36686_enable_als(struct i2c_client *client, int enable) { struct cm36686_priv *obj = i2c_get_clientdata(client); int res; u8 databuf[3]; if (enable == 1) { APS_LOG("cm36686_enable_als enable_als\n"); databuf[0] = CM36686_REG_ALS_CONF; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_ALS_EXIT_ERR; } APS_LOG("CM36686_REG_ALS_CONF value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); databuf[2] = databuf[1]; databuf[1] = databuf[0] & 0xFE; databuf[0] = CM36686_REG_ALS_CONF; res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_ALS_EXIT_ERR; } atomic_set(&obj->als_deb_on, 1); #ifdef CONFIG_64BIT atomic64_set(&obj->als_deb_end, jiffies + atomic_read(&obj->als_debounce) / (1000 / HZ)); #else atomic_set(&obj->als_deb_end, jiffies + atomic_read(&obj->als_debounce) / (1000 / HZ)); #endif } else { APS_LOG("cm36686_enable_als disable_als\n"); databuf[0] = CM36686_REG_ALS_CONF; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_ALS_EXIT_ERR; } APS_LOG("CM36686_REG_ALS_CONF value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); databuf[2] = databuf[1]; databuf[1] = databuf[0] | 0x01; databuf[0] = CM36686_REG_ALS_CONF; res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto ENABLE_ALS_EXIT_ERR; } atomic_set(&obj->als_deb_on, 0); } return 0; ENABLE_ALS_EXIT_ERR: return res; } /********************************************************************/ long cm36686_read_ps(struct i2c_client *client, u16 *data) { long res; u8 databuf[2]; struct cm36686_priv *obj = i2c_get_clientdata(client); databuf[0] = CM36686_REG_PS_DATA; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto READ_PS_EXIT_ERR; } if (atomic_read(&obj->trace) & CMC_TRC_DEBUG) { APS_LOG("CM36686_REG_PS_DATA value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); } *data = ((databuf[1] << 8) | databuf[0]); if (*data < obj->ps_cali) *data = 0; else *data = *data - obj->ps_cali; return 0; READ_PS_EXIT_ERR: return res; } /********************************************************************/ long cm36686_read_als(struct i2c_client *client, u16 *data) { long res; u8 databuf[2]; struct cm36686_priv *obj = i2c_get_clientdata(client); databuf[0] = CM36686_REG_ALS_DATA; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err\n"); goto READ_ALS_EXIT_ERR; } if (atomic_read(&obj->trace) & CMC_TRC_DEBUG) APS_LOG("CM36686_REG_ALS_DATA value: %d\n", ((databuf[1] << 8) | databuf[0])); *data = ((databuf[1] << 8) | databuf[0]); return 0; READ_ALS_EXIT_ERR: return res; } /********************************************************************/ static int cm36686_get_ps_value(struct cm36686_priv *obj, u16 ps) { int val, mask = atomic_read(&obj->ps_mask); int invalid = 0; val = intr_flag; /* value between high/low threshold should sync. with hw status. */ if (ps > atomic_read(&obj->ps_thd_val_high)) val = 0; /*close */ else if (ps < atomic_read(&obj->ps_thd_val_low)) val = 1; /*far away */ if (atomic_read(&obj->ps_suspend)) { invalid = 1; } else if (1 == atomic_read(&obj->ps_deb_on)) { #ifdef CONFIG_64BIT unsigned long endt = atomic64_read(&obj->ps_deb_end); #else unsigned long endt = atomic_read(&obj->ps_deb_end); #endif if (time_after(jiffies, endt)) atomic_set(&obj->ps_deb_on, 0); if (1 == atomic_read(&obj->ps_deb_on)) invalid = 1; } if (!invalid) { if (unlikely(atomic_read(&obj->trace) & CMC_TRC_CVT_PS)) { if (mask) APS_DBG("PS: %05d => %05d [M]\n", ps, val); else APS_DBG("PS: %05d => %05d\n", ps, val); } if (0 == test_bit(CMC_BIT_PS, &obj->enable)) { /* if ps is disable do not report value */ APS_DBG("PS: not enable and do not report this value\n"); return -1; } else { return val; } } else { if (unlikely(atomic_read(&obj->trace) & CMC_TRC_CVT_PS)) APS_DBG("PS: %05d => %05d (-1)\n", ps, val); return -1; } } /********************************************************************/ static int cm36686_get_als_value(struct cm36686_priv *obj, u16 als) { int idx = 0; int invalid = 0; int level_high = 0; int level_low = 0; int level_diff = 0; int value_high = 0; int value_low = 0; int value_diff = 0; int value = 0; if ((0 == obj->als_level_num) || (0 == obj->als_value_num)) { APS_ERR("invalid als_level_num = %d, als_value_num = %d\n", obj->als_level_num, obj->als_value_num); return -1; } if (1 == atomic_read(&obj->als_deb_on)) { #ifdef CONFIG_64BIT unsigned long endt = (unsigned long)atomic64_read(&obj->als_deb_end); #else unsigned long endt = (unsigned long)atomic_read(&obj->als_deb_end); #endif if (time_after(jiffies, endt)) atomic_set(&obj->als_deb_on, 0); if (1 == atomic_read(&obj->als_deb_on)) invalid = 1; } for (idx = 0; idx < obj->als_level_num; idx++) { if (als < obj->hw->als_level[idx]) break; } if (idx >= obj->als_level_num || idx >= obj->als_value_num) { if (idx < obj->als_value_num) value = obj->hw->als_value[idx - 1]; else value = obj->hw->als_value[obj->als_value_num - 1]; } else { level_high = obj->hw->als_level[idx]; level_low = (idx > 0) ? obj->hw->als_level[idx - 1] : 0; level_diff = level_high - level_low; value_high = obj->hw->als_value[idx]; value_low = (idx > 0) ? obj->hw->als_value[idx - 1] : 0; value_diff = value_high - value_low; if ((level_low >= level_high) || (value_low >= value_high)) value = value_low; else value = (level_diff * value_low + (als - level_low) * value_diff + ((level_diff + 1) >> 1)) / level_diff; } if (!invalid) { if (atomic_read(&obj->trace) & CMC_TRC_CVT_AAL) APS_DBG("ALS: %d [%d, %d] => %d [%d, %d]\n", als, level_low, level_high, value, value_low, value_high); return value; } else { if (atomic_read(&obj->trace) & CMC_TRC_CVT_ALS) APS_DBG("ALS: %05d => %05d (-1)\n", als, value); return -1; } } /*-------------------------------attribute file for debugging----------------------------------*/ /****************************************************************************** * Sysfs attributes *******************************************************************************/ static ssize_t cm36686_show_config(struct device_driver *ddri, char *buf) { ssize_t res; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } res = snprintf(buf, PAGE_SIZE, "(%d %d %d %d %d)\n", atomic_read(&cm36686_obj->i2c_retry), atomic_read(&cm36686_obj->als_debounce), atomic_read(&cm36686_obj->ps_mask), atomic_read(&cm36686_obj->ps_thd_val), atomic_read(&cm36686_obj->ps_debounce)); return res; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_config(struct device_driver *ddri, const char *buf, size_t count) { int retry, als_deb, ps_deb, mask, thres; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } if (5 == sscanf(buf, "%d %d %d %d %d", &retry, &als_deb, &mask, &thres, &ps_deb)) { atomic_set(&cm36686_obj->i2c_retry, retry); atomic_set(&cm36686_obj->als_debounce, als_deb); atomic_set(&cm36686_obj->ps_mask, mask); atomic_set(&cm36686_obj->ps_thd_val, thres); atomic_set(&cm36686_obj->ps_debounce, ps_deb); } else { APS_ERR("invalid content: '%s', length = %zu\n", buf, count); } return count; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_trace(struct device_driver *ddri, char *buf) { ssize_t res; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } res = snprintf(buf, PAGE_SIZE, "0x%04X\n", atomic_read(&cm36686_obj->trace)); return res; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_trace(struct device_driver *ddri, const char *buf, size_t count) { int trace; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } if (1 == sscanf(buf, "0x%x", &trace)) atomic_set(&cm36686_obj->trace, trace); else APS_ERR("invalid content: '%s', length = %zu\n", buf, count); return count; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_als(struct device_driver *ddri, char *buf) { int res; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } res = cm36686_read_als(cm36686_obj->client, &cm36686_obj->als); if (res) return snprintf(buf, PAGE_SIZE, "ERROR: %d\n", res); else return snprintf(buf, PAGE_SIZE, "0x%04X\n", cm36686_obj->als); } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_ps(struct device_driver *ddri, char *buf) { ssize_t res; if (!cm36686_obj) { APS_ERR("cm3623_obj is null!!\n"); return 0; } res = cm36686_read_ps(cm36686_obj->client, &cm36686_obj->ps); if (res) return snprintf(buf, PAGE_SIZE, "ERROR: %d\n", (int)res); else return snprintf(buf, PAGE_SIZE, "0x%04X\n", cm36686_obj->ps); } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_reg(struct device_driver *ddri, char *buf) { u8 _bIndex = 0; u8 databuf[2] = { 0 }; ssize_t _tLength = 0; if (!cm36686_obj) { APS_ERR("cm3623_obj is null!!\n"); return 0; } for (_bIndex = 0; _bIndex < 0x0D; _bIndex++) { databuf[0] = _bIndex; CM36686_i2c_master_operate(cm36686_obj->client, databuf, 0x201, I2C_FLAG_READ); _tLength += snprintf((buf + _tLength), (PAGE_SIZE - _tLength), "Reg[0x%02X]: 0x%02X\n", _bIndex, databuf[0]); } return _tLength; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_send(struct device_driver *ddri, char *buf) { return 0; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_send(struct device_driver *ddri, const char *buf, size_t count) { int addr, cmd; u8 dat; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } else if (2 != sscanf(buf, "%x %x", &addr, &cmd)) { APS_ERR("invalid format: '%s'\n", buf); return 0; } dat = (u8) cmd; return count; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_recv(struct device_driver *ddri, char *buf) { return 0; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_recv(struct device_driver *ddri, const char *buf, size_t count) { int addr; int ret; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } ret = kstrtoint(buf, 16, &addr); if (ret < 0) { APS_ERR("invalid format: '%s'\n", buf); return 0; } return count; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_status(struct device_driver *ddri, char *buf) { ssize_t len = 0; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } if (cm36686_obj->hw) { len += snprintf(buf + len, PAGE_SIZE - len, "CUST: %d, (%d %d)\n", cm36686_obj->hw->i2c_num, cm36686_obj->hw->power_id, cm36686_obj->hw->power_vol); } else { len += snprintf(buf + len, PAGE_SIZE - len, "CUST: NULL\n"); } len += snprintf(buf + len, PAGE_SIZE - len, "REGS: %02X %02X %02X %02lX %02lX\n", atomic_read(&cm36686_obj->als_cmd_val), atomic_read(&cm36686_obj->ps_cmd_val), atomic_read(&cm36686_obj->ps_thd_val), cm36686_obj->enable, cm36686_obj->pending_intr); len += snprintf(buf + len, PAGE_SIZE - len, "MISC: %d %d\n", atomic_read(&cm36686_obj->als_suspend), atomic_read(&cm36686_obj->ps_suspend)); return len; } /*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/ #define IS_SPACE(CH) (((CH) == ' ') || ((CH) == '\n')) /*----------------------------------------------------------------------------*/ static int read_int_from_buf(struct cm36686_priv *obj, const char *buf, size_t count, u32 data[], int len) { int idx = 0; int ret; char *cur = (char *)buf, *end = (char *)(buf + count); while (idx < len) { while ((cur < end) && IS_SPACE(*cur)) cur++; ret = kstrtoint(cur, 10, &data[idx]); if (ret < 0) break; idx++; while ((cur < end) && !IS_SPACE(*cur)) cur++; } return idx; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_alslv(struct device_driver *ddri, char *buf) { ssize_t len = 0; int idx; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } for (idx = 0; idx < cm36686_obj->als_level_num; idx++) len += snprintf(buf + len, PAGE_SIZE - len, "%d ", cm36686_obj->hw->als_level[idx]); len += snprintf(buf + len, PAGE_SIZE - len, "\n"); return len; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_alslv(struct device_driver *ddri, const char *buf, size_t count) { if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } else if (!strcmp(buf, "def")) { memcpy(cm36686_obj->als_level, cm36686_obj->hw->als_level, sizeof(cm36686_obj->als_level)); } else if (cm36686_obj->als_level_num != read_int_from_buf(cm36686_obj, buf, count, cm36686_obj->hw->als_level, cm36686_obj->als_level_num)) { APS_ERR("invalid format: '%s'\n", buf); } return count; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_show_alsval(struct device_driver *ddri, char *buf) { ssize_t len = 0; int idx; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } for (idx = 0; idx < cm36686_obj->als_value_num; idx++) len += snprintf(buf + len, PAGE_SIZE - len, "%d ", cm36686_obj->hw->als_value[idx]); len += snprintf(buf + len, PAGE_SIZE - len, "\n"); return len; } /*----------------------------------------------------------------------------*/ static ssize_t cm36686_store_alsval(struct device_driver *ddri, const char *buf, size_t count) { if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return 0; } else if (!strcmp(buf, "def")) { memcpy(cm36686_obj->als_value, cm36686_obj->hw->als_value, sizeof(cm36686_obj->als_value)); } else if (cm36686_obj->als_value_num != read_int_from_buf(cm36686_obj, buf, count, cm36686_obj->hw->als_value, cm36686_obj->als_value_num)) { APS_ERR("invalid format: '%s'\n", buf); } return count; } /*---------------------------------------------------------------------------------------*/ static DRIVER_ATTR(als, S_IWUSR | S_IRUGO, cm36686_show_als, NULL); static DRIVER_ATTR(ps, S_IWUSR | S_IRUGO, cm36686_show_ps, NULL); static DRIVER_ATTR(config, S_IWUSR | S_IRUGO, cm36686_show_config, cm36686_store_config); static DRIVER_ATTR(alslv, S_IWUSR | S_IRUGO, cm36686_show_alslv, cm36686_store_alslv); static DRIVER_ATTR(alsval, S_IWUSR | S_IRUGO, cm36686_show_alsval, cm36686_store_alsval); static DRIVER_ATTR(trace, S_IWUSR | S_IRUGO, cm36686_show_trace, cm36686_store_trace); static DRIVER_ATTR(status, S_IWUSR | S_IRUGO, cm36686_show_status, NULL); static DRIVER_ATTR(send, S_IWUSR | S_IRUGO, cm36686_show_send, cm36686_store_send); static DRIVER_ATTR(recv, S_IWUSR | S_IRUGO, cm36686_show_recv, cm36686_store_recv); static DRIVER_ATTR(reg, S_IWUSR | S_IRUGO, cm36686_show_reg, NULL); /*----------------------------------------------------------------------------*/ static struct driver_attribute *cm36686_attr_list[] = { &driver_attr_als, &driver_attr_ps, &driver_attr_trace, /*trace log */ &driver_attr_config, &driver_attr_alslv, &driver_attr_alsval, &driver_attr_status, &driver_attr_send, &driver_attr_recv, &driver_attr_reg, }; /*----------------------------------------------------------------------------*/ static int cm36686_create_attr(struct device_driver *driver) { int idx, err = 0; int num = (int)(sizeof(cm36686_attr_list) / sizeof(cm36686_attr_list[0])); if (driver == NULL) return -EINVAL; for (idx = 0; idx < num; idx++) { err = driver_create_file(driver, cm36686_attr_list[idx]); if (err) { APS_ERR("driver_create_file (%s) = %d\n", cm36686_attr_list[idx]->attr.name, err); break; } } return err; } /*----------------------------------------------------------------------------*/ static int cm36686_delete_attr(struct device_driver *driver) { int idx, err = 0; int num = (int)(sizeof(cm36686_attr_list) / sizeof(cm36686_attr_list[0])); if (!driver) return -EINVAL; for (idx = 0; idx < num; idx++) driver_remove_file(driver, cm36686_attr_list[idx]); return err; } /*----------------------------------------------------------------------------*/ /*----------------------------------interrupt functions--------------------------------*/ static int cm36686_check_intr(struct i2c_client *client) { int res; u8 databuf[2]; databuf[0] = CM36686_REG_PS_DATA; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err res = %d\n", res); goto EXIT_ERR; } APS_LOG("CM36686_REG_PS_DATA value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); databuf[0] = CM36686_REG_INT_FLAG; res = CM36686_i2c_master_operate(client, databuf, 0x201, I2C_FLAG_READ); if (res < 0) { APS_ERR("i2c_master_send function err res = %d\n", res); goto EXIT_ERR; } APS_LOG("CM36686_REG_INT_FLAG value value_low = %x, value_high = %x\n", databuf[0], databuf[1]); if (databuf[1] & 0x02) { intr_flag = 0; /* for close */ } else if (databuf[1] & 0x01) { intr_flag = 1; /* for away */ } else { res = -1; APS_ERR("cm36686_check_intr fail databuf[1]&0x01: %d\n", res); goto EXIT_ERR; } return 0; EXIT_ERR: APS_ERR("cm36686_check_intr dev: %d\n", res); return res; } /*----------------------------------------------------------------------------*/ static void cm36686_eint_work(struct work_struct *work) { struct cm36686_priv *obj = (struct cm36686_priv *)container_of(work, struct cm36686_priv, eint_work); int res = 0; APS_LOG("cm36686 int top half time = %lld\n", int_top_time); res = cm36686_check_intr(obj->client); if (res != 0) { goto EXIT_INTR_ERR; } else { APS_LOG("cm36686 interrupt value = %d\n", intr_flag); res = ps_report_interrupt_data(intr_flag); } enable_irq(obj->irq); return; EXIT_INTR_ERR: enable_irq(obj->irq); APS_ERR("cm36686_eint_work err: %d\n", res); } /*----------------------------------------------------------------------------*/ static void cm36686_eint_func(void) { struct cm36686_priv *obj = cm36686_obj; if (!obj) return; int_top_time = sched_clock(); schedule_work(&obj->eint_work); } #if defined(CONFIG_OF) static irqreturn_t cm36686_eint_handler(int irq, void *desc) { cm36686_eint_func(); disable_irq_nosync(cm36686_obj->irq); return IRQ_HANDLED; } #endif /*----------------------------------------------------------------------------*/ int cm36686_setup_eint(struct i2c_client *client) { #if defined(CONFIG_OF) u32 ints[2] = { 0, 0 }; #endif int ret; struct pinctrl *pinctrl; struct pinctrl_state *pins_default; struct pinctrl_state *pins_cfg; alspsPltFmDev = get_alsps_platformdev(); pinctrl = devm_pinctrl_get(&alspsPltFmDev->dev); if (IS_ERR(pinctrl)) { ret = PTR_ERR(pinctrl); APS_ERR("Cannot find alsps pinctrl!\n"); } pins_default = pinctrl_lookup_state(pinctrl, "pin_default"); if (IS_ERR(pins_default)) { ret = PTR_ERR(pins_default); APS_ERR("Cannot find alsps pinctrl default!\n"); } pins_cfg = pinctrl_lookup_state(pinctrl, "pin_cfg"); if (IS_ERR(pins_cfg)) { ret = PTR_ERR(pins_cfg); APS_ERR("Cannot find alsps pinctrl pin_cfg!\n"); } pinctrl_select_state(pinctrl, pins_cfg); if (cm36686_obj->irq_node) { of_property_read_u32_array(cm36686_obj->irq_node, "debounce", ints, ARRAY_SIZE(ints)); gpio_request(ints[0], "p-sensor"); gpio_set_debounce(ints[0], ints[1]); APS_LOG("ints[0] = %d, ints[1] = %d!!\n", ints[0], ints[1]); cm36686_obj->irq = irq_of_parse_and_map(cm36686_obj->irq_node, 0); APS_LOG("cm36686_obj->irq = %d\n", cm36686_obj->irq); if (!cm36686_obj->irq) { APS_ERR("irq_of_parse_and_map fail!!\n"); return -EINVAL; } if (request_irq (cm36686_obj->irq, cm36686_eint_handler, IRQF_TRIGGER_NONE, "ALS-eint", NULL)) { APS_ERR("IRQ LINE NOT AVAILABLE!!\n"); return -EINVAL; } enable_irq(cm36686_obj->irq); } else { APS_ERR("null irq node!!\n"); return -EINVAL; } return 0; } /*-------------------------------MISC device related------------------------------------------*/ /************************************************************/ static int cm36686_open(struct inode *inode, struct file *file) { file->private_data = cm36686_i2c_client; if (!file->private_data) { APS_ERR("null pointer!!\n"); return -EINVAL; } return nonseekable_open(inode, file); } /************************************************************/ static int cm36686_release(struct inode *inode, struct file *file) { file->private_data = NULL; return 0; } /************************************************************/ static int set_psensor_threshold(struct i2c_client *client) { struct cm36686_priv *obj = i2c_get_clientdata(client); int res = 0; u8 databuf[3]; APS_ERR("set_psensor_threshold function high: 0x%x, low:0x%x\n", atomic_read(&obj->ps_thd_val_high), atomic_read(&obj->ps_thd_val_low)); databuf[0] = CM36686_REG_PS_THDL; databuf[1] = atomic_read(&obj->ps_thd_val_low); databuf[2] = atomic_read(&obj->ps_thd_val_low) >> 8; res = CM36686_i2c_master_operate(client, databuf, 3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); return -1; } databuf[0] = CM36686_REG_PS_THDH; databuf[1] = atomic_read(&obj->ps_thd_val_high); databuf[2] = atomic_read(&obj->ps_thd_val_high) >> 8; res = CM36686_i2c_master_operate(client, databuf, 3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); return -1; } return 0; } static long cm36686_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct i2c_client *client = (struct i2c_client *)file->private_data; struct cm36686_priv *obj = i2c_get_clientdata(client); long err = 0; void __user *ptr = (void __user *)arg; int dat; uint32_t enable; int ps_result; int ps_cali; int threshold[2]; switch (cmd) { case ALSPS_SET_PS_MODE: if (copy_from_user(&enable, ptr, sizeof(enable))) { err = -EFAULT; goto err_out; } if (enable) { err = cm36686_enable_ps(obj->client, 1); if (err) { APS_ERR("enable ps fail: %ld\n", err); goto err_out; } set_bit(CMC_BIT_PS, &obj->enable); } else { err = cm36686_enable_ps(obj->client, 0); if (err) { APS_ERR("disable ps fail: %ld\n", err); goto err_out; } clear_bit(CMC_BIT_PS, &obj->enable); } break; case ALSPS_GET_PS_MODE: enable = test_bit(CMC_BIT_PS, &obj->enable) ? (1) : (0); if (copy_to_user(ptr, &enable, sizeof(enable))) { err = -EFAULT; goto err_out; } break; case ALSPS_GET_PS_DATA: err = cm36686_read_ps(obj->client, &obj->ps); if (err) goto err_out; dat = cm36686_get_ps_value(obj, obj->ps); if (copy_to_user(ptr, &dat, sizeof(dat))) { err = -EFAULT; goto err_out; } break; case ALSPS_GET_PS_RAW_DATA: err = cm36686_read_ps(obj->client, &obj->ps); if (err) goto err_out; dat = obj->ps; if (copy_to_user(ptr, &dat, sizeof(dat))) { err = -EFAULT; goto err_out; } break; case ALSPS_SET_ALS_MODE: if (copy_from_user(&enable, ptr, sizeof(enable))) { err = -EFAULT; goto err_out; } if (enable) { err = cm36686_enable_als(obj->client, 1); if (err) { APS_ERR("enable als fail: %ld\n", err); goto err_out; } set_bit(CMC_BIT_ALS, &obj->enable); } else { err = cm36686_enable_als(obj->client, 0); if (err) { APS_ERR("disable als fail: %ld\n", err); goto err_out; } clear_bit(CMC_BIT_ALS, &obj->enable); } break; case ALSPS_GET_ALS_MODE: enable = test_bit(CMC_BIT_ALS, &obj->enable) ? (1) : (0); if (copy_to_user(ptr, &enable, sizeof(enable))) { err = -EFAULT; goto err_out; } break; case ALSPS_GET_ALS_DATA: err = cm36686_read_als(obj->client, &obj->als); if (err) goto err_out; dat = cm36686_get_als_value(obj, obj->als); if (copy_to_user(ptr, &dat, sizeof(dat))) { err = -EFAULT; goto err_out; } break; case ALSPS_GET_ALS_RAW_DATA: err = cm36686_read_als(obj->client, &obj->als); if (err) goto err_out; dat = obj->als; if (copy_to_user(ptr, &dat, sizeof(dat))) { err = -EFAULT; goto err_out; } break; /*----------------------------------for factory mode test---------------------------------------*/ case ALSPS_GET_PS_TEST_RESULT: err = cm36686_read_ps(obj->client, &obj->ps); if (err) goto err_out; if (obj->ps > atomic_read(&obj->ps_thd_val_low)) ps_result = 0; else ps_result = 1; if (copy_to_user(ptr, &ps_result, sizeof(ps_result))) { err = -EFAULT; goto err_out; } break; case ALSPS_IOCTL_CLR_CALI: if (copy_from_user(&dat, ptr, sizeof(dat))) { err = -EFAULT; goto err_out; } if (dat == 0) obj->ps_cali = 0; break; case ALSPS_IOCTL_GET_CALI: ps_cali = obj->ps_cali; if (copy_to_user(ptr, &ps_cali, sizeof(ps_cali))) { err = -EFAULT; goto err_out; } break; case ALSPS_IOCTL_SET_CALI: if (copy_from_user(&ps_cali, ptr, sizeof(ps_cali))) { err = -EFAULT; goto err_out; } obj->ps_cali = ps_cali; break; case ALSPS_SET_PS_THRESHOLD: if (copy_from_user(threshold, ptr, sizeof(threshold))) { err = -EFAULT; goto err_out; } APS_ERR("%s set threshold high: 0x%x, low: 0x%x\n", __func__, threshold[0], threshold[1]); atomic_set(&obj->ps_thd_val_high, (threshold[0] + obj->ps_cali)); atomic_set(&obj->ps_thd_val_low, (threshold[1] + obj->ps_cali)); /* need to confirm */ set_psensor_threshold(obj->client); break; case ALSPS_GET_PS_THRESHOLD_HIGH: threshold[0] = atomic_read(&obj->ps_thd_val_high) - obj->ps_cali; APS_ERR("%s get threshold high: 0x%x\n", __func__, threshold[0]); if (copy_to_user(ptr, &threshold[0], sizeof(threshold[0]))) { err = -EFAULT; goto err_out; } break; case ALSPS_GET_PS_THRESHOLD_LOW: threshold[0] = atomic_read(&obj->ps_thd_val_low) - obj->ps_cali; APS_ERR("%s get threshold low: 0x%x\n", __func__, threshold[0]); if (copy_to_user(ptr, &threshold[0], sizeof(threshold[0]))) { err = -EFAULT; goto err_out; } break; /*------------------------------------------------------------------------------------------*/ default: APS_ERR("%s not supported = 0x%04x", __func__, cmd); err = -ENOIOCTLCMD; break; } err_out: return err; } #ifdef CONFIG_COMPAT static long compat_cm36686_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { APS_FUN(); if (!filp->f_op || !filp->f_op->unlocked_ioctl) { APS_ERR("compat_ion_ioctl file has no f_op or no f_op->unlocked_ioctl.\n"); return -ENOTTY; } switch (cmd) { case COMPAT_ALSPS_SET_PS_MODE: case COMPAT_ALSPS_GET_PS_MODE: case COMPAT_ALSPS_GET_PS_DATA: case COMPAT_ALSPS_GET_PS_RAW_DATA: case COMPAT_ALSPS_SET_ALS_MODE: case COMPAT_ALSPS_GET_ALS_MODE: case COMPAT_ALSPS_GET_ALS_DATA: case COMPAT_ALSPS_GET_ALS_RAW_DATA: case COMPAT_ALSPS_GET_PS_TEST_RESULT: case COMPAT_ALSPS_GET_ALS_TEST_RESULT: case COMPAT_ALSPS_GET_PS_THRESHOLD_HIGH: case COMPAT_ALSPS_GET_PS_THRESHOLD_LOW: case COMPAT_ALSPS_GET_ALS_THRESHOLD_HIGH: case COMPAT_ALSPS_GET_ALS_THRESHOLD_LOW: case COMPAT_ALSPS_IOCTL_CLR_CALI: case COMPAT_ALSPS_IOCTL_GET_CALI: case COMPAT_ALSPS_IOCTL_SET_CALI: case COMPAT_ALSPS_SET_PS_THRESHOLD: case COMPAT_ALSPS_SET_ALS_THRESHOLD: case COMPAT_AAL_SET_ALS_MODE: case COMPAT_AAL_GET_ALS_MODE: case COMPAT_AAL_GET_ALS_DATA: return filp->f_op->unlocked_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); default: APS_ERR("compat_ion_ioctl : No such command!! 0x%x\n", cmd); return -ENOIOCTLCMD; } } #endif /********************************************************************/ /*------------------------------misc device related operation functions------------------------------------*/ static const struct file_operations cm36686_fops = { .owner = THIS_MODULE, .open = cm36686_open, .release = cm36686_release, .unlocked_ioctl = cm36686_unlocked_ioctl, #if IS_ENABLED(CONFIG_COMPAT) .compat_ioctl = compat_cm36686_unlocked_ioctl, #endif }; static struct miscdevice cm36686_device = { .minor = MISC_DYNAMIC_MINOR, .name = "als_ps", .fops = &cm36686_fops, }; /*--------------------------------------------------------------------------------*/ static int cm36686_init_client(struct i2c_client *client) { struct cm36686_priv *obj = i2c_get_clientdata(client); u8 databuf[3]; int res = 0; APS_FUN(); databuf[0] = CM36686_REG_ALS_CONF; if (1 == obj->hw->polling_mode_als) databuf[1] = 0x41; /*0b01000001;*/ else databuf[1] = 0x47; /*0b01000111;*/ databuf[2] = 0x00; /*0b00000000;*/ res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } APS_LOG("cm36686 ps CM36686_REG_ALS_CONF command!\n"); databuf[0] = CM36686_REG_PS_CONF1_2; databuf[1] = 0x63; /*0b01100011;*/ if (1 == obj->hw->polling_mode_ps) databuf[2] = 0x08; /*0b00001000;*/ else databuf[2] = 0x0B; /*0b00001011;*/ res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } APS_LOG("cm36686 ps CM36686_REG_PS_CONF1_2 command!\n"); databuf[0] = CM36686_REG_PS_CONF3_MS; databuf[1] = 0x14; /*0b00010100;*/ databuf[2] = 0x02; /*0b00000010;*/ res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } APS_LOG("cm36686 ps CM36686_REG_PS_CONF3_MS command!\n"); databuf[0] = CM36686_REG_PS_CANC; /* value need to confirm */ databuf[1] = 0x00; databuf[2] = 0x00; res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } APS_LOG("cm36686 ps CM36686_REG_PS_CANC command!\n"); if (0 == obj->hw->polling_mode_als) { databuf[0] = CM36686_REG_ALS_THDH; databuf[1] = 0x00; databuf[2] = atomic_read(&obj->als_thd_val_high); res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } databuf[0] = CM36686_REG_ALS_THDL; databuf[1] = 0x00; databuf[2] = atomic_read(&obj->als_thd_val_low); /* threshold value need to confirm */ res = CM36686_i2c_master_operate(client, databuf, 0x3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } } if (0 == obj->hw->polling_mode_ps) { databuf[0] = CM36686_REG_PS_THDL; databuf[1] = atomic_read(&obj->ps_thd_val_low); databuf[2] = atomic_read(&obj->ps_thd_val_low) >> 8; res = CM36686_i2c_master_operate(client, databuf, 3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } databuf[0] = CM36686_REG_PS_THDH; databuf[1] = atomic_read(&obj->ps_thd_val_high); databuf[2] = atomic_read(&obj->ps_thd_val_high) >> 8; res = CM36686_i2c_master_operate(client, databuf, 3, I2C_FLAG_WRITE); if (res <= 0) { APS_ERR("i2c_master_send function err\n"); goto EXIT_ERR; } } res = cm36686_setup_eint(client); if (res != 0) { APS_ERR("setup eint: %d\n", res); return res; } return CM36686_SUCCESS; EXIT_ERR: APS_ERR("init dev: %d\n", res); return res; } /*--------------------------------------------------------------------------------*/ /* if use this typ of enable , Gsensor should report inputEvent(x, y, z ,stats, div) to HAL */ static int als_open_report_data(int open) { /* should queuq work to report event if is_report_input_direct=true */ return 0; } /* if use this typ of enable , Gsensor only enabled but not report inputEvent to HAL */ static int als_enable_nodata(int en) { int res = 0; APS_LOG("cm36686_obj als enable value = %d\n", en); mutex_lock(&cm36686_mutex); if (en) set_bit(CMC_BIT_ALS, &cm36686_obj->enable); else clear_bit(CMC_BIT_ALS, &cm36686_obj->enable); mutex_unlock(&cm36686_mutex); if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return -1; } res = cm36686_enable_als(cm36686_obj->client, en); if (res) { APS_ERR("als_enable_nodata is failed!!\n"); return -1; } return 0; } static int als_set_delay(u64 ns) { return 0; } static int als_get_data(int *value, int *status) { int err = 0; struct cm36686_priv *obj = NULL; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return -1; } obj = cm36686_obj; err = cm36686_read_als(obj->client, &obj->als); if (err) { err = -1; } else { *value = cm36686_get_als_value(obj, obj->als); if (*value < 0) err = -1; *status = SENSOR_STATUS_ACCURACY_MEDIUM; } return err; } /* if use this typ of enable , Gsensor should report inputEvent(x, y, z ,stats, div) to HAL */ static int ps_open_report_data(int open) { /* should queuq work to report event if is_report_input_direct=true */ return 0; } /* if use this typ of enable , Gsensor only enabled but not report inputEvent to HAL */ static int ps_enable_nodata(int en) { int res = 0; APS_LOG("cm36686_obj als enable value = %d\n", en); mutex_lock(&cm36686_mutex); if (en) set_bit(CMC_BIT_PS, &cm36686_obj->enable); else clear_bit(CMC_BIT_PS, &cm36686_obj->enable); mutex_unlock(&cm36686_mutex); if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return -1; } res = cm36686_enable_ps(cm36686_obj->client, en); if (res) { APS_ERR("als_enable_nodata is failed!!\n"); return -1; } return 0; } static int ps_set_delay(u64 ns) { return 0; } static int ps_get_data(int *value, int *status) { int err = 0; if (!cm36686_obj) { APS_ERR("cm36686_obj is null!!\n"); return -1; } err = cm36686_read_ps(cm36686_obj->client, &cm36686_obj->ps); if (err) { err = -1; } else { *value = cm36686_get_ps_value(cm36686_obj, cm36686_obj->ps); if (*value < 0) err = -1; *status = SENSOR_STATUS_ACCURACY_MEDIUM; } return err; } /*-----------------------------------i2c operations----------------------------------*/ static int cm36686_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct cm36686_priv *obj; int err = 0; struct als_control_path als_ctl = { 0 }; struct als_data_path als_data = { 0 }; struct ps_control_path ps_ctl = { 0 }; struct ps_data_path ps_data = { 0 }; APS_FUN(); obj = kzalloc(sizeof(*obj), GFP_KERNEL); if (!obj) { err = -ENOMEM; goto exit; } memset(obj, 0, sizeof(*obj)); cm36686_obj = obj; obj->hw = hw; INIT_WORK(&obj->eint_work, cm36686_eint_work); obj->client = client; i2c_set_clientdata(client, obj); /*-----------------------------value need to be confirmed-----------------------------------------*/ atomic_set(&obj->als_debounce, 200); atomic_set(&obj->als_deb_on, 0); #ifdef CONFIG_64BIT atomic64_set(&obj->als_deb_end, 0); #else atomic_set(&obj->als_deb_end, 0); #endif atomic_set(&obj->ps_debounce, 200); atomic_set(&obj->ps_deb_on, 0); #ifdef CONFIG_64BIT atomic64_set(&obj->ps_deb_end, 0); #else atomic_set(&obj->ps_deb_end, 0); #endif atomic_set(&obj->ps_mask, 0); atomic_set(&obj->als_suspend, 0); atomic_set(&obj->als_cmd_val, 0xDF); atomic_set(&obj->ps_cmd_val, 0xC1); atomic_set(&obj->ps_thd_val_high, obj->hw->ps_threshold_high); atomic_set(&obj->ps_thd_val_low, obj->hw->ps_threshold_low); atomic_set(&obj->als_thd_val_high, obj->hw->als_threshold_high); atomic_set(&obj->als_thd_val_low, obj->hw->als_threshold_low); atomic_set(&obj->init_done, 0); obj->irq_node = of_find_compatible_node(NULL, NULL, "mediatek, ALS-eint"); obj->enable = 0; obj->pending_intr = 0; obj->ps_cali = 0; obj->als_level_num = sizeof(obj->hw->als_level) / sizeof(obj->hw->als_level[0]); obj->als_value_num = sizeof(obj->hw->als_value) / sizeof(obj->hw->als_value[0]); /*-----------------------------value need to be confirmed-----------------------------------------*/ BUG_ON(sizeof(obj->als_level) != sizeof(obj->hw->als_level)); memcpy(obj->als_level, obj->hw->als_level, sizeof(obj->als_level)); BUG_ON(sizeof(obj->als_value) != sizeof(obj->hw->als_value)); memcpy(obj->als_value, obj->hw->als_value, sizeof(obj->als_value)); atomic_set(&obj->i2c_retry, 3); clear_bit(CMC_BIT_ALS, &obj->enable); clear_bit(CMC_BIT_PS, &obj->enable); cm36686_i2c_client = client; err = cm36686_init_client(client); if (err) goto exit_init_failed; APS_LOG("cm36686_init_client() OK!\n"); err = misc_register(&cm36686_device); if (err) { APS_ERR("cm36686_device register failed\n"); goto exit_misc_device_register_failed; } als_ctl.is_use_common_factory = false; ps_ctl.is_use_common_factory = false; APS_LOG("cm36686_device misc_register OK!\n"); /*------------------------cm36686 attribute file for debug--------------------------------------*/ err = cm36686_create_attr(&(cm36686_init_info.platform_diver_addr->driver)); if (err) { APS_ERR("create attribute err = %d\n", err); goto exit_create_attr_failed; } /*------------------------cm36686 attribute file for debug--------------------------------------*/ als_ctl.open_report_data = als_open_report_data; als_ctl.enable_nodata = als_enable_nodata; als_ctl.set_delay = als_set_delay; als_ctl.is_report_input_direct = false; als_ctl.is_support_batch = false; err = als_register_control_path(&als_ctl); if (err) { APS_ERR("register fail = %d\n", err); goto exit_sensor_obj_attach_fail; } als_data.get_data = als_get_data; als_data.vender_div = 100; err = als_register_data_path(&als_data); if (err) { APS_ERR("tregister fail = %d\n", err); goto exit_sensor_obj_attach_fail; } ps_ctl.open_report_data = ps_open_report_data; ps_ctl.enable_nodata = ps_enable_nodata; ps_ctl.set_delay = ps_set_delay; ps_ctl.is_report_input_direct = false; ps_ctl.is_support_batch = false; ps_ctl.is_polling_mode = obj->hw->polling_mode_ps; err = ps_register_control_path(&ps_ctl); if (err) { APS_ERR("register fail = %d\n", err); goto exit_sensor_obj_attach_fail; } ps_data.get_data = ps_get_data; ps_data.vender_div = 100; err = ps_register_data_path(&ps_data); if (err) { APS_ERR("tregister fail = %d\n", err); goto exit_sensor_obj_attach_fail; } err = batch_register_support_info(ID_LIGHT, als_ctl.is_support_batch, 1, 0); if (err) APS_ERR("register light batch support err = %d\n", err); err = batch_register_support_info(ID_PROXIMITY, ps_ctl.is_support_batch, 1, 0); if (err) APS_ERR("register proximity batch support err = %d\n", err); cm36686_init_flag = 0; APS_LOG("%s: OK\n", __func__); return 0; exit_create_attr_failed: exit_sensor_obj_attach_fail: exit_misc_device_register_failed: misc_deregister(&cm36686_device); exit_init_failed: kfree(obj); exit: cm36686_i2c_client = NULL; APS_ERR("%s: err = %d\n", __func__, err); cm36686_init_flag = -1; return err; } static int cm36686_i2c_remove(struct i2c_client *client) { int err; /*------------------------cm36686 attribute file for debug--------------------------------------*/ err = cm36686_delete_attr(&(cm36686_init_info.platform_diver_addr->driver)); if (err) APS_ERR("cm36686_delete_attr fail: %d\n", err); /*----------------------------------------------------------------------------------------*/ err = misc_deregister(&cm36686_device); if (err) APS_ERR("misc_deregister fail: %d\n", err); cm36686_i2c_client = NULL; i2c_unregister_device(client); kfree(i2c_get_clientdata(client)); return 0; } static int cm36686_i2c_detect(struct i2c_client *client, struct i2c_board_info *info) { strcpy(info->type, CM36686_DEV_NAME); return 0; } static int cm36686_i2c_suspend(struct i2c_client *client, pm_message_t msg) { struct cm36686_priv *obj = i2c_get_clientdata(client); int err; APS_FUN(); if (!obj) { APS_ERR("null pointer!!\n"); return 0; } atomic_set(&obj->als_suspend, 1); err = cm36686_enable_als(obj->client, 0); if (err) APS_ERR("disable als fail: %d\n", err); return 0; } static int cm36686_i2c_resume(struct i2c_client *client) { struct cm36686_priv *obj = i2c_get_clientdata(client); int err; struct hwm_sensor_data sensor_data; memset(&sensor_data, 0, sizeof(sensor_data)); APS_FUN(); if (!obj) { APS_ERR("null pointer!!\n"); return 0; } atomic_set(&obj->als_suspend, 0); if (test_bit(CMC_BIT_ALS, &obj->enable)) { err = cm36686_enable_als(obj->client, 1); if (err) APS_ERR("enable als fail: %d\n", err); } return 0; } /*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/ static int cm36686_remove(void) { cm36686_power(hw, 0); i2c_del_driver(&cm36686_i2c_driver); return 0; } /*----------------------------------------------------------------------------*/ static int cm36686_local_init(void) { cm36686_power(hw, 1); if (i2c_add_driver(&cm36686_i2c_driver)) { APS_ERR("add driver error\n"); return -1; } if (-1 == cm36686_init_flag) return -1; return 0; } /*----------------------------------------------------------------------------*/ static int __init cm36686_init(void) { const char *name = "mediatek,CM36686"; hw = get_alsps_dts_func(name, hw); if (!hw) { APS_ERR("get_alsps_dts_func fail\n"); return 0; } alsps_driver_add(&cm36686_init_info); return 0; } /*----------------------------------------------------------------------------*/ static void __exit cm36686_exit(void) { APS_FUN(); } /*----------------------------------------------------------------------------*/ module_init(cm36686_init); module_exit(cm36686_exit); /*----------------------------------------------------------------------------*/ MODULE_AUTHOR("andrew yang"); MODULE_DESCRIPTION("cm36686 driver"); MODULE_LICENSE("GPL");