/* akm8975.c - akm8975 compass driver * * * 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 #include //#include #include #include #include /*-------------------------MT6516&MT6573 define-------------------------------*/ #define POWER_NONE_MACRO MT65XX_POWER_NONE #include #include "akm8975.h" #include /*----------------------------------------------------------------------------*/ //#define DEBUG 1 #define AKM8975_DEV_NAME "akm8975" #define DRIVER_VERSION "1.0.1" /*----------------------------------------------------------------------------*/ #define AKM8975_DEBUG 1 #define AKM8975_DEBUG_MSG 1 #define AKM8975_DEBUG_FUNC 1 #define AKM8975_DEBUG_DATA 1 #define MAX_FAILURE_COUNT 3 #define AKM8975_RETRY_COUNT 10 #define AKM8975_DEFAULT_DELAY 100 #if AKM8975_DEBUG_MSG #define AKMDBG(format, ...) printk(KERN_INFO "AKM8975 " format "\n", ## __VA_ARGS__) #else #define AKMDBG(format, ...) #endif #if AKM8975_DEBUG_FUNC #define AKMFUNC(func) printk(KERN_INFO "AKM8975 " func " is called\n") #else #define AKMFUNC(func) #endif #define MSE_TAG "[Msensor] " #define MSE_FUN(f) printk(KERN_ERR MSE_TAG"%s\n", __func__) #define MSE_ERR(fmt, args...) printk(KERN_ERR MSE_TAG"%s %d : "fmt, __func__, __LINE__, ##args) #define MSE_LOG(fmt, args...) printk(KERN_INFO MSE_TAG fmt, ##args) static struct i2c_client *this_client = NULL; /* Addresses to scan -- protected by sense_data_mutex */ static char sense_data[SENSOR_DATA_SIZE]; static struct mutex sense_data_mutex; // calibration msensor and orientation data static short sensor_data[CALIBRATION_DATA_SIZE]; static struct mutex sensor_data_mutex; static DECLARE_WAIT_QUEUE_HEAD(data_ready_wq); static DECLARE_WAIT_QUEUE_HEAD(open_wq); static short akmd_delay = AKM8975_DEFAULT_DELAY; static atomic_t open_flag = ATOMIC_INIT(0); static atomic_t m_flag = ATOMIC_INIT(0); static atomic_t o_flag = ATOMIC_INIT(0); static int factory_mode=0; /*----------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------*/ static const struct i2c_device_id akm8975_i2c_id[] = {{AKM8975_DEV_NAME,0},{}}; static struct i2c_board_info __initdata i2c_akm8975={ I2C_BOARD_INFO("akm8975", (0x18>>1))}; /*the adapter id will be available in customization*/ //static unsigned short akm8975_force[] = {0x00, AKM8975_I2C_ADDRESS, I2C_CLIENT_END, I2C_CLIENT_END}; //static const unsigned short *const akm8975_forces[] = { akm8975_force, NULL }; //static struct i2c_client_address_data akm8975_addr_data = { .forces = akm8975_forces,}; /*----------------------------------------------------------------------------*/ static int akm8975_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id); static int akm8975_i2c_remove(struct i2c_client *client); static int akm8975_i2c_detect(struct i2c_client *client, struct i2c_board_info *info); static int akm_probe(struct platform_device *pdev); static int akm_remove(struct platform_device *pdev); /*----------------------------------------------------------------------------*/ typedef enum { AMK_FUN_DEBUG = 0x01, AMK_DATA_DEBUG = 0X02, AMK_HWM_DEBUG = 0X04, AMK_CTR_DEBUG = 0X08, AMK_I2C_DEBUG = 0x10, } AMK_TRC; /*----------------------------------------------------------------------------*/ struct akm8975_i2c_data { struct i2c_client *client; struct mag_hw *hw; atomic_t layout; atomic_t trace; struct hwmsen_convert cvt; #if defined(CONFIG_HAS_EARLYSUSPEND) struct early_suspend early_drv; #endif }; /*----------------------------------------------------------------------------*/ static struct i2c_driver akm8975_i2c_driver = { .driver = { // .owner = THIS_MODULE, .name = AKM8975_DEV_NAME, }, .probe = akm8975_i2c_probe, .remove = akm8975_i2c_remove, .detect = akm8975_i2c_detect, #if !defined(CONFIG_HAS_EARLYSUSPEND) .suspend = akm8975_suspend, .resume = akm8975_resume, #endif .id_table = akm8975_i2c_id, // .address_data = &akm8975_addr_data, }; /*----------------------------------------------------------------------------*/ #if 0 static struct platform_driver akm_sensor_driver = { .probe = akm_probe, .remove = akm_remove, .driver = { .name = "msensor", // .owner = THIS_MODULE, } }; #endif #ifdef CONFIG_OF static const struct of_device_id akm8975_of_match[] = { { .compatible = "mediatek,msensor", }, {}, }; #endif static struct platform_driver akm_sensor_driver = { .probe = akm_probe, .remove = akm_remove, .driver = { .name = "msensor", #ifdef CONFIG_OF .of_match_table = akm8975_of_match, #endif } }; /*----------------------------------------------------------------------------*/ static atomic_t dev_open_count; /*----------------------------------------------------------------------------*/ static void akm8975_power(struct mag_hw *hw, unsigned int on) { static unsigned int power_on = 0; if(hw->power_id != POWER_NONE_MACRO) { AKMDBG("power %s\n", on ? "on" : "off"); if(power_on == on) { AKMDBG("ignore power control: %d\n", on); } else if(on) { if(!hwPowerOn(hw->power_id, hw->power_vol, "akm8975")) { printk(KERN_ERR "power on fails!!\n"); } } else { if(!hwPowerDown(hw->power_id, "akm8975")) { printk(KERN_ERR "power off fail!!\n"); } } } power_on = on; } static int AKI2C_RxData(char *rxData, int length) { uint8_t loop_i; #if DEBUG int i; struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); char addr = rxData[0]; #endif /* Caller should check parameter validity.*/ if((rxData == NULL) || (length < 1)) { return -EINVAL; } for(loop_i = 0; loop_i < AKM8975_RETRY_COUNT; loop_i++) { this_client->addr = (this_client->addr & I2C_MASK_FLAG) | I2C_WR_FLAG; if(i2c_master_send(this_client, (const char*)rxData, ((length<<0X08) | 0X01))) { break; } mdelay(10); } if(loop_i >= AKM8975_RETRY_COUNT) { printk(KERN_ERR "%s retry over %d\n", __func__, AKM8975_RETRY_COUNT); return -EIO; } #if DEBUG if(atomic_read(&data->trace) & AMK_I2C_DEBUG) { printk(KERN_INFO "RxData: len=%02x, addr=%02x\n data=", length, addr); for(i = 0; i < length; i++) { printk(KERN_INFO " %02x", rxData[i]); } printk(KERN_INFO "\n"); } #endif return 0; } static int AKI2C_TxData(char *txData, int length) { uint8_t loop_i; #if DEBUG int i; struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); #endif /* Caller should check parameter validity.*/ if ((txData == NULL) || (length < 2)) { return -EINVAL; } this_client->addr = this_client->addr & I2C_MASK_FLAG; for(loop_i = 0; loop_i < AKM8975_RETRY_COUNT; loop_i++) { if(i2c_master_send(this_client, (const char*)txData, length) > 0) { break; } mdelay(10); } if(loop_i >= AKM8975_RETRY_COUNT) { printk(KERN_ERR "%s retry over %d\n", __func__, AKM8975_RETRY_COUNT); return -EIO; } #if DEBUG if(atomic_read(&data->trace) & AMK_I2C_DEBUG) { printk(KERN_INFO "TxData: len=%02x, addr=%02x\n data=", length, txData[0]); for(i = 0; i < (length-1); i++) { printk(KERN_INFO " %02x", txData[i + 1]); } printk(KERN_INFO "\n"); } #endif return 0; } static int AKECS_SetMode_SngMeasure(void) { char buffer[2]; /* Set measure mode */ buffer[0] = AK8975_REG_CNTL; buffer[1] = AK8975_MODE_SNG_MEASURE; /* Set data */ return AKI2C_TxData(buffer, 2); } static int AKECS_SetMode_SelfTest(void) { char buffer[2]; /* Set measure mode */ buffer[0] = AK8975_REG_CNTL; buffer[1] = AK8975_MODE_SELF_TEST; /* Set data */ return AKI2C_TxData(buffer, 2); } static int AKECS_SetMode_FUSEAccess(void) { char buffer[2]; /* Set measure mode */ buffer[0] = AK8975_REG_CNTL; buffer[1] = AK8975_MODE_FUSE_ACCESS; /* Set data */ return AKI2C_TxData(buffer, 2); } static int AKECS_SetMode_PowerDown(void) { char buffer[2]; /* Set powerdown mode */ buffer[0] = AK8975_REG_CNTL; buffer[1] = AK8975_MODE_POWERDOWN; /* Set data */ return AKI2C_TxData(buffer, 2); } static int AKECS_SetMode(char mode) { int ret; switch (mode) { case AK8975_MODE_SNG_MEASURE: ret = AKECS_SetMode_SngMeasure(); break; case AK8975_MODE_SELF_TEST: ret = AKECS_SetMode_SelfTest(); break; case AK8975_MODE_FUSE_ACCESS: ret = AKECS_SetMode_FUSEAccess(); break; case AK8975_MODE_POWERDOWN: ret = AKECS_SetMode_PowerDown(); /* wait at least 100us after changing mode */ udelay(100); break; default: AKMDBG("%s: Unknown mode(%d)", __func__, mode); return -EINVAL; } return ret; } static int AKECS_CheckDevice(void) { char buffer[2]; int ret; AKMDBG(" AKM check device id"); /* Set measure mode */ buffer[0] = AK8975_REG_WIA; /* Read data */ ret = AKI2C_RxData(buffer, 1); AKMDBG(" AKM check device id = %x",buffer[0]); AKMDBG("ret = %d",ret); if(ret < 0) { return ret; } /* Check read data */ if(buffer[0] != 0x48) { return -ENXIO; } return 0; } // Daemon application save the data static int AKECS_SaveData(short *buf) { #if DEBUG struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); #endif mutex_lock(&sensor_data_mutex); memcpy(sensor_data, buf, sizeof(sensor_data)); mutex_unlock(&sensor_data_mutex); #if DEBUG if(atomic_read(&data->trace) & AMK_HWM_DEBUG) { AKMDBG("Get daemon data: %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d!\n", sensor_data[0],sensor_data[1],sensor_data[2],sensor_data[3], sensor_data[4],sensor_data[5],sensor_data[6],sensor_data[7], sensor_data[8],sensor_data[9],sensor_data[10],sensor_data[11]); } #endif return 0; } // M-sensor daemon application have set the sng mode static int AKECS_GetData(char *rbuf, int size) { char temp; int loop_i,ret; #if DEBUG struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); #endif if(size < SENSOR_DATA_SIZE) { printk(KERN_ERR "buff size is too small %d!\n", size); return -1; } memset(rbuf, 0, SENSOR_DATA_SIZE); rbuf[0] = AK8975_REG_ST1; for(loop_i = 0; loop_i < AKM8975_RETRY_COUNT; loop_i++) { if((ret = AKI2C_RxData(rbuf, 1))) { printk(KERN_ERR "read ST1 resigster failed!\n"); return -1; } if((rbuf[0] & 0x01) == 0x01) { break; } msleep(10); rbuf[0] = AK8975_REG_ST1; } if(loop_i >= AKM8975_RETRY_COUNT) { printk(KERN_ERR "Data read retry larger the max count!\n"); if(0 ==factory_mode) { return -1;//if return we can not get data at factory mode } } temp = rbuf[0]; rbuf[1]= AK8975_REG_HXL; ret = AKI2C_RxData(&rbuf[1], SENSOR_DATA_SIZE -1); if(ret < 0) { printk(KERN_ERR "AKM8975 akm8975_work_func: I2C failed\n"); return -1; } rbuf[0] = temp; mutex_lock(&sense_data_mutex); memcpy(sense_data, rbuf, sizeof(sense_data)); mutex_unlock(&sense_data_mutex); #if DEBUG if(atomic_read(&data->trace) & AMK_DATA_DEBUG) { AKMDBG("Get device data: %d, %d, %d, %d , %d, %d, %d, %d!\n", sense_data[0],sense_data[1],sense_data[2],sense_data[3], sense_data[4],sense_data[5],sense_data[6],sense_data[7]); } #endif return 0; } // Get Msensor Raw data static int AKECS_GetRawData(char *rbuf, int size) { char strbuf[SENSOR_DATA_SIZE]; s16 data[3]; if(atomic_read(&open_flag) == 0) { AKECS_SetMode_SngMeasure(); msleep(10); } AKECS_GetData(strbuf, SENSOR_DATA_SIZE); data[0] = (s16)(strbuf[1] | (strbuf[2] << 8)); data[1] = (s16)(strbuf[3] | (strbuf[4] << 8)); data[2] = (s16)(strbuf[5] | (strbuf[6] << 8)); sprintf(rbuf, "%x %x %x", data[0], data[1], data[2]); return 0; } static int AKECS_GetOpenStatus(void) { wait_event_interruptible(open_wq, (atomic_read(&open_flag) != 0)); return atomic_read(&open_flag); } static int AKECS_GetCloseStatus(void) { wait_event_interruptible(open_wq, (atomic_read(&open_flag) <= 0)); return atomic_read(&open_flag); } /* static void AKECS_CloseDone(void) { atomic_set(&m_flag, 1); atomic_set(&a_flag, 1); atomic_set(&mv_flag, 1); } */ /*----------------------------------------------------------------------------*/ static int akm8975_ReadChipInfo(char *buf, int bufsize) { if((!buf)||(bufsize <= AKM8975_BUFSIZE -1)) { return -1; } if(!this_client) { *buf = 0; return -2; } sprintf(buf, "akm8975 Chip"); return 0; } /*----------------------------shipment test------------------------------------------------*/ static int TEST_DATA(const char testno[], const char testname[], const int testdata, const int lolimit, const int hilimit, int * pf_total) { int pf; //Pass;1, Fail;-1 if ((testno == NULL) && (strncmp(testname, "START", 5) == 0)) { // Display header AKMDBG( "--------------------------------------------------------------------\n"); AKMDBG( " Test No. Test Name Fail Test Data [ Low High]\n"); AKMDBG( "--------------------------------------------------------------------\n"); pf = 1; } else if ((testno == NULL) && (strncmp(testname, "END", 3) == 0)) { // Display result AKMDBG( "--------------------------------------------------------------------\n"); if (*pf_total == 1) { AKMDBG("Factory shipment test was passed.\n\n"); } else { AKMDBG("Factory shipment test was failed.\n\n"); } pf = 1; } else { if ((lolimit <= testdata) && (testdata <= hilimit)) { //Pass pf = 1; } else { //Fail pf = -1; } //display result AKMDBG(" %7s %-10s %c %9d [%9d %9d]\n", testno, testname, ((pf == 1) ? ('.') : ('F')), testdata, lolimit, hilimit); } //Pass/Fail check if (*pf_total != 0) { if ((*pf_total == 1) && (pf == 1)) { *pf_total = 1; //Pass } else { *pf_total = -1; //Fail } } return pf; } static int FctShipmntTestProcess_Body(void) { int pf_total; //p/f flag for this subtest char i2cData[16]; int hdata[3]; int asax; int asay; int asaz; //*********************************************** // Reset Test Result //*********************************************** pf_total = 1; //*********************************************** // Step1 //*********************************************** // Set to PowerDown mode if (AKECS_SetMode(AK8975_MODE_POWERDOWN) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // When the serial interface is SPI, // write "00011011" to I2CDIS register(to disable I2C,). if(CSPEC_SPI_USE == 1){ i2cData[0] = AK8975_REG_I2CDIS; i2cData[1] = 0x1B; if (AKI2C_TxData(i2cData, 2) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } } // Read values from WIA to ASTC. i2cData[0] = AK8975_REG_WIA; if (AKI2C_RxData(i2cData, 7) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // TEST TEST_DATA(TLIMIT_NO_RST_WIA, TLIMIT_TN_RST_WIA, (int)i2cData[0], TLIMIT_LO_RST_WIA, TLIMIT_HI_RST_WIA, &pf_total); TEST_DATA(TLIMIT_NO_RST_INFO, TLIMIT_TN_RST_INFO, (int)i2cData[1], TLIMIT_LO_RST_INFO, TLIMIT_HI_RST_INFO, &pf_total); TEST_DATA(TLIMIT_NO_RST_ST1, TLIMIT_TN_RST_ST1, (int)i2cData[2], TLIMIT_LO_RST_ST1, TLIMIT_HI_RST_ST1, &pf_total); TEST_DATA(TLIMIT_NO_RST_HXL, TLIMIT_TN_RST_HXL, (int)i2cData[3], TLIMIT_LO_RST_HXL, TLIMIT_HI_RST_HXL, &pf_total); TEST_DATA(TLIMIT_NO_RST_HXH, TLIMIT_TN_RST_HXH, (int)i2cData[4], TLIMIT_LO_RST_HXH, TLIMIT_HI_RST_HXH, &pf_total); TEST_DATA(TLIMIT_NO_RST_HYL, TLIMIT_TN_RST_HYL, (int)i2cData[5], TLIMIT_LO_RST_HYL, TLIMIT_HI_RST_HYL, &pf_total); TEST_DATA(TLIMIT_NO_RST_HYH, TLIMIT_TN_RST_HYH, (int)i2cData[6], TLIMIT_LO_RST_HYH, TLIMIT_HI_RST_HYH, &pf_total); // our i2c only most can read 8 byte at one time , i2cData[7]= AK8975_REG_HZL; if (AKI2C_RxData((i2cData+7), 6) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } TEST_DATA(TLIMIT_NO_RST_HZL, TLIMIT_TN_RST_HZL, (int)i2cData[7], TLIMIT_LO_RST_HZL, TLIMIT_HI_RST_HZL, &pf_total); TEST_DATA(TLIMIT_NO_RST_HZH, TLIMIT_TN_RST_HZH, (int)i2cData[8], TLIMIT_LO_RST_HZH, TLIMIT_HI_RST_HZH, &pf_total); TEST_DATA(TLIMIT_NO_RST_ST2, TLIMIT_TN_RST_ST2, (int)i2cData[9], TLIMIT_LO_RST_ST2, TLIMIT_HI_RST_ST2, &pf_total); TEST_DATA(TLIMIT_NO_RST_CNTL, TLIMIT_TN_RST_CNTL, (int)i2cData[10], TLIMIT_LO_RST_CNTL, TLIMIT_HI_RST_CNTL, &pf_total); // i2cData[11] is BLANK. TEST_DATA(TLIMIT_NO_RST_ASTC, TLIMIT_TN_RST_ASTC, (int)i2cData[12], TLIMIT_LO_RST_ASTC, TLIMIT_HI_RST_ASTC, &pf_total); // Read values from I2CDIS. i2cData[0] = AK8975_REG_I2CDIS; if (AKI2C_RxData(i2cData, 1) < 0 ) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } if(CSPEC_SPI_USE == 1){ TEST_DATA(TLIMIT_NO_RST_I2CDIS, TLIMIT_TN_RST_I2CDIS, (int)i2cData[0], TLIMIT_LO_RST_I2CDIS_USESPI, TLIMIT_HI_RST_I2CDIS_USESPI, &pf_total); }else{ TEST_DATA(TLIMIT_NO_RST_I2CDIS, TLIMIT_TN_RST_I2CDIS, (int)i2cData[0], TLIMIT_LO_RST_I2CDIS_USEI2C, TLIMIT_HI_RST_I2CDIS_USEI2C, &pf_total); } // Set to FUSE ROM access mode if (AKECS_SetMode(AK8975_MODE_FUSE_ACCESS) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // Read values from ASAX to ASAZ i2cData[0] = AK8975_FUSE_ASAX; if (AKI2C_RxData(i2cData, 3) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } asax = (int)i2cData[0]; asay = (int)i2cData[1]; asaz = (int)i2cData[2]; #ifdef NOASA if((asax==0)||(asay==0)||(asaz==0)){ asax = 128; asay = 128; asaz = 128; } #endif // TEST TEST_DATA(TLIMIT_NO_ASAX, TLIMIT_TN_ASAX, asax, TLIMIT_LO_ASAX, TLIMIT_HI_ASAX, &pf_total); TEST_DATA(TLIMIT_NO_ASAY, TLIMIT_TN_ASAY, asay, TLIMIT_LO_ASAY, TLIMIT_HI_ASAY, &pf_total); TEST_DATA(TLIMIT_NO_ASAZ, TLIMIT_TN_ASAZ, asaz, TLIMIT_LO_ASAZ, TLIMIT_HI_ASAZ, &pf_total); // Read values. CNTL i2cData[0] = AK8975_REG_CNTL; if (AKI2C_RxData(i2cData, 1)< 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // Set to PowerDown mode if (AKECS_SetMode(AK8975_MODE_POWERDOWN) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // TEST TEST_DATA(TLIMIT_NO_WR_CNTL, TLIMIT_TN_WR_CNTL, (int)i2cData[0], TLIMIT_LO_WR_CNTL, TLIMIT_HI_WR_CNTL, &pf_total); //*********************************************** // Step2 //*********************************************** // Set to SNG measurement pattern (Set CNTL register) if (AKECS_SetMode(AK8975_MODE_SNG_MEASURE) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // Wait for DRDY pin changes to HIGH. msleep(10); // Get measurement data from AK8975 // ST1 + (HXL + HXH) + (HYL + HYH) + (HZL + HZH) + ST2 // = 1 + (1 + 1) + (1 + 1) + (1 + 1) + 1 = 8 bytes if (AKECS_GetData(i2cData,SENSOR_DATA_SIZE) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } hdata[0] = (s16)(i2cData[1] | (i2cData[2] << 8)); hdata[1] = (s16)(i2cData[3] | (i2cData[4] << 8)); hdata[2] = (s16)(i2cData[5] | (i2cData[6] << 8)); //hdata[0] = (int)((((uint)(i2cData[2]))<<8)+(uint)(i2cData[1])); //hdata[1] = (int)((((uint)(i2cData[4]))<<8)+(uint)(i2cData[3])); //hdata[2] = (int)((((uint)(i2cData[6]))<<8)+(uint)(i2cData[5])); // TEST TEST_DATA(TLIMIT_NO_SNG_ST1, TLIMIT_TN_SNG_ST1, (int)i2cData[0], TLIMIT_LO_SNG_ST1, TLIMIT_HI_SNG_ST1, &pf_total); TEST_DATA(TLIMIT_NO_SNG_HX, TLIMIT_TN_SNG_HX, hdata[0], TLIMIT_LO_SNG_HX, TLIMIT_HI_SNG_HX, &pf_total); TEST_DATA(TLIMIT_NO_SNG_HY, TLIMIT_TN_SNG_HY, hdata[1], TLIMIT_LO_SNG_HY, TLIMIT_HI_SNG_HY, &pf_total); TEST_DATA(TLIMIT_NO_SNG_HZ, TLIMIT_TN_SNG_HZ, hdata[2], TLIMIT_LO_SNG_HZ, TLIMIT_HI_SNG_HZ, &pf_total); TEST_DATA(TLIMIT_NO_SNG_ST2, TLIMIT_TN_SNG_ST2, (int)i2cData[7], TLIMIT_LO_SNG_ST2, TLIMIT_HI_SNG_ST2, &pf_total); // Generate magnetic field for self-test (Set ASTC register) i2cData[0] = AK8975_REG_ASTC; i2cData[1] = 0x40; if (AKI2C_TxData(i2cData, 2) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // Set to Self-test mode (Set CNTL register) if (AKECS_SetMode(AK8975_MODE_SELF_TEST) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // Wait for DRDY pin changes to HIGH. msleep(10); // Get measurement data from AK8975 // ST1 + (HXL + HXH) + (HYL + HYH) + (HZL + HZH) + ST2 // = 1 + (1 + 1) + (1 + 1) + (1 + 1) + 1 = 8Byte if (AKECS_GetData(i2cData,SENSOR_DATA_SIZE) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } // TEST TEST_DATA(TLIMIT_NO_SLF_ST1, TLIMIT_TN_SLF_ST1, (int)i2cData[0], TLIMIT_LO_SLF_ST1, TLIMIT_HI_SLF_ST1, &pf_total); hdata[0] = (s16)(i2cData[1] | (i2cData[2] << 8)); hdata[1] = (s16)(i2cData[3] | (i2cData[4] << 8)); hdata[2] = (s16)(i2cData[5] | (i2cData[6] << 8)); //hdata[0] = (int)((((uint)(i2cData[2]))<<8)+(uint)(i2cData[1])); //hdata[1] = (int)((((uint)(i2cData[4]))<<8)+(uint)(i2cData[3])); //hdata[2] = (int)((((uint)(i2cData[6]))<<8)+(uint)(i2cData[5])); // TEST /* TEST_DATA( TLIMIT_NO_SLF_RVHX, TLIMIT_TN_SLF_RVHX, (hdata[0])*((asax - 128)*0.5f/128.0f + 1), TLIMIT_LO_SLF_RVHX, TLIMIT_HI_SLF_RVHX, &pf_total ); TEST_DATA( TLIMIT_NO_SLF_RVHY, TLIMIT_TN_SLF_RVHY, (hdata[1])*((asay - 128)*0.5f/128.0f + 1), TLIMIT_LO_SLF_RVHY, TLIMIT_HI_SLF_RVHY, &pf_total ); TEST_DATA( TLIMIT_NO_SLF_RVHZ, TLIMIT_TN_SLF_RVHZ, (hdata[2])*((asaz - 128)*0.5f/128.0f + 1), TLIMIT_LO_SLF_RVHZ, TLIMIT_HI_SLF_RVHZ, &pf_total ); */ AKMDBG("hdata[0] = %d\n",hdata[0] ); AKMDBG("asax = %d\n",asax ); TEST_DATA( TLIMIT_NO_SLF_RVHX, TLIMIT_TN_SLF_RVHX, (hdata[0])*((asax - 128)/2/128 + 1), TLIMIT_LO_SLF_RVHX, TLIMIT_HI_SLF_RVHX, &pf_total ); TEST_DATA( TLIMIT_NO_SLF_RVHY, TLIMIT_TN_SLF_RVHY, (hdata[1])*((asay - 128)/2/128 + 1), TLIMIT_LO_SLF_RVHY, TLIMIT_HI_SLF_RVHY, &pf_total ); TEST_DATA( TLIMIT_NO_SLF_RVHZ, TLIMIT_TN_SLF_RVHZ, (hdata[2])*((asaz - 128)/2/128 + 1), TLIMIT_LO_SLF_RVHZ, TLIMIT_HI_SLF_RVHZ, &pf_total ); // TEST TEST_DATA(TLIMIT_NO_SLF_ST2, TLIMIT_TN_SLF_ST2, (int)i2cData[7], TLIMIT_LO_SLF_ST2, TLIMIT_HI_SLF_ST2, &pf_total); // Set to Normal mode for self-test. i2cData[0] = AK8975_REG_ASTC; i2cData[1] = 0x00; if (AKI2C_TxData(i2cData, 2) < 0) { AKMDBG("%s:%d Error.\n", __func__, __LINE__); return 0; } AKMDBG("pf_total = %d\n",pf_total ); return pf_total; } static ssize_t store_shipment_test(struct device_driver * ddri, const char * buf,size_t count) { //struct i2c_client *client = this_client; //struct akm8975_i2c_data *data = i2c_get_clientdata(client); //int layout = 0; return count; } static ssize_t show_shipment_test(struct device_driver *ddri, char *buf) { char result[10]; int res = 0; res = FctShipmntTestProcess_Body(); if(1 == res) { AKMDBG("shipment_test pass\n"); strcpy(result,"y"); } else if(-1 == res) { AKMDBG("shipment_test fail\n"); strcpy(result,"n"); } else { AKMDBG("shipment_test NaN\n"); strcpy(result,"NaN"); } return sprintf(buf, "%s\n", result); } static ssize_t show_daemon_name(struct device_driver *ddri, char *buf) { char strbuf[AKM8975_BUFSIZE]; sprintf(strbuf, "akmd8975"); return sprintf(buf, "%s", strbuf); } static ssize_t show_chipinfo_value(struct device_driver *ddri, char *buf) { char strbuf[AKM8975_BUFSIZE]; akm8975_ReadChipInfo(strbuf, AKM8975_BUFSIZE); return sprintf(buf, "%s\n", strbuf); } /*----------------------------------------------------------------------------*/ static ssize_t show_sensordata_value(struct device_driver *ddri, char *buf) { char sensordata[SENSOR_DATA_SIZE]; char strbuf[AKM8975_BUFSIZE]; if(atomic_read(&open_flag) == 0) { AKECS_SetMode_SngMeasure(); msleep(10); AKECS_GetData(sensordata, SENSOR_DATA_SIZE); } else { mutex_lock(&sense_data_mutex); memcpy(sensordata, sense_data, sizeof(sensordata)); mutex_unlock(&sense_data_mutex); } sprintf(strbuf, "%d %d %d %d %d %d %d %d\n", sensordata[0],sensordata[1],sensordata[2], sensordata[3],sensordata[4],sensordata[5],sensordata[6],sensordata[7]); return sprintf(buf, "%s\n", strbuf); } /*----------------------------------------------------------------------------*/ static ssize_t show_posturedata_value(struct device_driver *ddri, char *buf) { short tmp[3]; char strbuf[AKM8975_BUFSIZE]; tmp[0] = sensor_data[0] * CONVERT_O / CONVERT_O_DIV; tmp[1] = sensor_data[1] * CONVERT_O / CONVERT_O_DIV; tmp[2] = sensor_data[2] * CONVERT_O / CONVERT_O_DIV; sprintf(strbuf, "%d, %d, %d\n", tmp[0],tmp[1], tmp[2]); return sprintf(buf, "%s\n", strbuf);; } /*----------------------------------------------------------------------------*/ static ssize_t show_layout_value(struct device_driver *ddri, char *buf) { struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); return sprintf(buf, "(%d, %d)\n[%+2d %+2d %+2d]\n[%+2d %+2d %+2d]\n", data->hw->direction,atomic_read(&data->layout), data->cvt.sign[0], data->cvt.sign[1], data->cvt.sign[2],data->cvt.map[0], data->cvt.map[1], data->cvt.map[2]); } /*----------------------------------------------------------------------------*/ static ssize_t store_layout_value(struct device_driver *ddri, const char *buf, size_t count) { struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); int layout = 0; if(1 == sscanf(buf, "%d", &layout)) { atomic_set(&data->layout, layout); if(!hwmsen_get_convert(layout, &data->cvt)) { printk(KERN_ERR "HWMSEN_GET_CONVERT function error!\r\n"); } else if(!hwmsen_get_convert(data->hw->direction, &data->cvt)) { printk(KERN_ERR "invalid layout: %d, restore to %d\n", layout, data->hw->direction); } else { printk(KERN_ERR "invalid layout: (%d, %d)\n", layout, data->hw->direction); hwmsen_get_convert(0, &data->cvt); } } else { printk(KERN_ERR "invalid format = '%s'\n", buf); } return count; } /*----------------------------------------------------------------------------*/ static ssize_t show_status_value(struct device_driver *ddri, char *buf) { struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); ssize_t len = 0; if(data->hw) { len += snprintf(buf+len, PAGE_SIZE-len, "CUST: %d %d (%d %d)\n", data->hw->i2c_num, data->hw->direction, data->hw->power_id, data->hw->power_vol); } else { len += snprintf(buf+len, PAGE_SIZE-len, "CUST: NULL\n"); } len += snprintf(buf+len, PAGE_SIZE-len, "OPEN: %d\n", atomic_read(&dev_open_count)); return len; } /*----------------------------------------------------------------------------*/ static ssize_t show_trace_value(struct device_driver *ddri, char *buf) { ssize_t res; struct akm8975_i2c_data *obj = i2c_get_clientdata(this_client); if(NULL == obj) { printk(KERN_ERR "akm8975_i2c_data is null!!\n"); return 0; } res = snprintf(buf, PAGE_SIZE, "0x%04X\n", atomic_read(&obj->trace)); return res; } /*----------------------------------------------------------------------------*/ static ssize_t store_trace_value(struct device_driver *ddri, const char *buf, size_t count) { struct akm8975_i2c_data *obj = i2c_get_clientdata(this_client); int trace; if(NULL == obj) { printk(KERN_ERR "akm8975_i2c_data is null!!\n"); return 0; } if(1 == sscanf(buf, "0x%x", &trace)) { atomic_set(&obj->trace, trace); } else { printk(KERN_ERR "invalid content: '%s', length = %d\n", buf, count); } return count; } /*----------------------------------------------------------------------------*/ static DRIVER_ATTR(daemon, S_IRUGO, show_daemon_name, NULL); static DRIVER_ATTR(shipmenttest,S_IRUGO | S_IWUSR, show_shipment_test, store_shipment_test); static DRIVER_ATTR(chipinfo, S_IRUGO, show_chipinfo_value, NULL); static DRIVER_ATTR(sensordata, S_IRUGO, show_sensordata_value, NULL); static DRIVER_ATTR(posturedata, S_IRUGO, show_posturedata_value, NULL); static DRIVER_ATTR(layout, S_IRUGO | S_IWUSR, show_layout_value, store_layout_value ); static DRIVER_ATTR(status, S_IRUGO, show_status_value, NULL); static DRIVER_ATTR(trace, S_IRUGO | S_IWUSR, show_trace_value, store_trace_value ); /*----------------------------------------------------------------------------*/ static struct driver_attribute *akm8975_attr_list[] = { &driver_attr_daemon, &driver_attr_shipmenttest, &driver_attr_chipinfo, &driver_attr_sensordata, &driver_attr_posturedata, &driver_attr_layout, &driver_attr_status, &driver_attr_trace, }; /*----------------------------------------------------------------------------*/ static int akm8975_create_attr(struct device_driver *driver) { int idx, err = 0; int num = (int)(sizeof(akm8975_attr_list)/sizeof(akm8975_attr_list[0])); if (driver == NULL) { return -EINVAL; } for(idx = 0; idx < num; idx++) { if((err = driver_create_file(driver, akm8975_attr_list[idx]))) { printk(KERN_ERR "driver_create_file (%s) = %d\n", akm8975_attr_list[idx]->attr.name, err); break; } } return err; } /*----------------------------------------------------------------------------*/ static int akm8975_delete_attr(struct device_driver *driver) { int idx ,err = 0; int num = (int)(sizeof(akm8975_attr_list)/sizeof(akm8975_attr_list[0])); if(driver == NULL) { return -EINVAL; } for(idx = 0; idx < num; idx++) { driver_remove_file(driver, akm8975_attr_list[idx]); } return err; } /*----------------------------------------------------------------------------*/ static int akm8975_open(struct inode *inode, struct file *file) { struct akm8975_i2c_data *obj = i2c_get_clientdata(this_client); int ret = -1; if(atomic_read(&obj->trace) & AMK_CTR_DEBUG) { AKMDBG("Open device node:akm8975\n"); } ret = nonseekable_open(inode, file); return ret; } /*----------------------------------------------------------------------------*/ static int akm8975_release(struct inode *inode, struct file *file) { struct akm8975_i2c_data *obj = i2c_get_clientdata(this_client); atomic_dec(&dev_open_count); if(atomic_read(&obj->trace) & AMK_CTR_DEBUG) { AKMDBG("Release device node:akm8975\n"); } return 0; } /*----------------------------------------------------------------------------*/ //static int akm8975_ioctl(struct inode *inode, struct file *file, unsigned int cmd,unsigned long arg) static long akm8975_unlocked_ioctl(struct file *file, unsigned int cmd,unsigned long arg) { void __user *argp = (void __user *)arg; /* NOTE: In this function the size of "char" should be 1-byte. */ char sData[SENSOR_DATA_SIZE];/* for GETDATA */ char rwbuf[RWBUF_SIZE]; /* for READ/WRITE */ char buff[AKM8975_BUFSIZE]; /* for chip information */ char mode; /* for SET_MODE*/ short value[12]; /* for SET_YPR */ short delay; /* for GET_DELAY */ int status; /* for OPEN/CLOSE_STATUS */ long ret = -1; /* Return value. */ int layout[3]; struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); hwm_sensor_data* osensor_data; uint32_t enable; switch (cmd) { case ECS_IOCTL_WRITE: //AKMFUNC("ECS_IOCTL_WRITE"); if(argp == NULL) { AKMDBG("invalid argument."); return -EINVAL; } if(copy_from_user(rwbuf, argp, sizeof(rwbuf))) { AKMDBG("copy_from_user failed."); return -EFAULT; } if((rwbuf[0] < 2) || (rwbuf[0] > (RWBUF_SIZE-1))) { AKMDBG("invalid argument."); return -EINVAL; } ret = AKI2C_TxData(&rwbuf[1], rwbuf[0]); if(ret < 0) { return ret; } break; case ECS_IOCTL_READ: //AKMFUNC("ECS_IOCTL_READ"); if(argp == NULL) { AKMDBG("invalid argument."); return -EINVAL; } if(copy_from_user(rwbuf, argp, sizeof(rwbuf))) { AKMDBG("copy_from_user failed."); return -EFAULT; } if((rwbuf[0] < 1) || (rwbuf[0] > (RWBUF_SIZE-1))) { AKMDBG("invalid argument."); return -EINVAL; } ret = AKI2C_RxData(&rwbuf[1], rwbuf[0]); if (ret < 0) { return ret; } if(copy_to_user(argp, rwbuf, rwbuf[0]+1)) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_SET_MODE: //AKMFUNC("ECS_IOCTL_SET_MODE"); if(argp == NULL) { AKMDBG("invalid argument."); return -EINVAL; } if(copy_from_user(&mode, argp, sizeof(mode))) { AKMDBG("copy_from_user failed."); return -EFAULT; } ret = AKECS_SetMode(mode); if(ret < 0) { return ret; } break; case ECS_IOCTL_GETDATA: //AKMFUNC("ECS_IOCTL_GETDATA"); ret = AKECS_GetData(sData, SENSOR_DATA_SIZE); if(ret < 0) { return ret; } if(copy_to_user(argp, sData, sizeof(sData))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_SET_YPR: //AKMFUNC("ECS_IOCTL_SET_YPR"); if(argp == NULL) { AKMDBG("invalid argument."); return -EINVAL; } if(copy_from_user(value, argp, sizeof(value))) { AKMDBG("copy_from_user failed."); return -EFAULT; } AKECS_SaveData(value); break; case ECS_IOCTL_GET_OPEN_STATUS: //AKMFUNC("IOCTL_GET_OPEN_STATUS"); status = AKECS_GetOpenStatus(); //AKMDBG("AKECS_GetOpenStatus returned (%d)", status); if(copy_to_user(argp, &status, sizeof(status))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_GET_CLOSE_STATUS: //AKMFUNC("IOCTL_GET_CLOSE_STATUS"); status = AKECS_GetCloseStatus(); //AKMDBG("AKECS_GetCloseStatus returned (%d)", status); if(copy_to_user(argp, &status, sizeof(status))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_GET_OSENSOR_STATUS: //AKMFUNC("ECS_IOCTL_GET_OSENSOR_STATUS"); status = atomic_read(&o_flag); if(copy_to_user(argp, &status, sizeof(status))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_GET_DELAY: //AKMFUNC("IOCTL_GET_DELAY"); delay = akmd_delay; if(copy_to_user(argp, &delay, sizeof(delay))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case ECS_IOCTL_GET_LAYOUT: layout[0] = 2; layout[1] = atomic_read(&data->layout); layout[2] = 0; if(copy_to_user(argp, layout, sizeof(layout))) { AKMDBG("copy_to_user failed."); return -EFAULT; } break; case MSENSOR_IOCTL_READ_CHIPINFO: if(argp == NULL) { printk(KERN_ERR "IO parameter pointer is NULL!\r\n"); break; } akm8975_ReadChipInfo(buff, AKM8975_BUFSIZE); if(copy_to_user(argp, buff, strlen(buff)+1)) { return -EFAULT; } break; case MSENSOR_IOCTL_READ_SENSORDATA: if(argp == NULL) { printk(KERN_ERR "IO parameter pointer is NULL!\r\n"); break; } AKECS_GetRawData(buff, AKM8975_BUFSIZE); if(copy_to_user(argp, buff, strlen(buff)+1)) { return -EFAULT; } break; case MSENSOR_IOCTL_SENSOR_ENABLE: if(argp == NULL) { printk(KERN_ERR "IO parameter pointer is NULL!\r\n"); break; } if(copy_from_user(&enable, argp, sizeof(enable))) { AKMDBG("copy_from_user failed."); return -EFAULT; } else { printk( "MSENSOR_IOCTL_SENSOR_ENABLE enable=%d!\r\n",enable); factory_mode = 1; if(1 == enable) { atomic_set(&o_flag, 1); atomic_set(&open_flag, 1); } else { atomic_set(&o_flag, 0); if(atomic_read(&m_flag) == 0) { atomic_set(&open_flag, 0); } } wake_up(&open_wq); } break; case MSENSOR_IOCTL_READ_FACTORY_SENSORDATA: if(argp == NULL) { printk(KERN_ERR "IO parameter pointer is NULL!\r\n"); break; } //AKECS_GetRawData(buff, AKM8975_BUFSIZE); osensor_data = (hwm_sensor_data *)buff; mutex_lock(&sensor_data_mutex); osensor_data->values[0] = sensor_data[0] * CONVERT_O; osensor_data->values[1] = sensor_data[1] * CONVERT_O; osensor_data->values[2] = sensor_data[2] * CONVERT_O; osensor_data->status = sensor_data[4]; osensor_data->value_divide = CONVERT_O_DIV; mutex_unlock(&sensor_data_mutex); sprintf(buff, "%x %x %x %x %x", osensor_data->values[0], osensor_data->values[1], osensor_data->values[2],osensor_data->status,osensor_data->value_divide); if(copy_to_user(argp, buff, strlen(buff)+1)) { return -EFAULT; } break; default: printk(KERN_ERR "%s not supported = 0x%04x", __func__, cmd); return -ENOIOCTLCMD; break; } return 0; } /*----------------------------------------------------------------------------*/ static struct file_operations akm8975_fops = { // .owner = THIS_MODULE, .open = akm8975_open, .release = akm8975_release, .unlocked_ioctl = akm8975_unlocked_ioctl, }; /*----------------------------------------------------------------------------*/ static struct miscdevice akm8975_device = { .minor = MISC_DYNAMIC_MINOR, .name = "msensor", .fops = &akm8975_fops, }; /*----------------------------------------------------------------------------*/ int akm8975_operate(void* self, uint32_t command, void* buff_in, int size_in, void* buff_out, int size_out, int* actualout) { int err = 0; int value;//status; hwm_sensor_data* msensor_data; #if DEBUG struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); #endif #if DEBUG if(atomic_read(&data->trace) & AMK_FUN_DEBUG) { AKMFUNC("akm8975_operate"); } #endif switch (command) { case SENSOR_DELAY: if((buff_in == NULL) || (size_in < sizeof(int))) { printk(KERN_ERR "Set delay parameter error!\n"); err = -EINVAL; } else { value = *(int *)buff_in; if(value <= 20) { akmd_delay = 20; } akmd_delay = value; } break; case SENSOR_ENABLE: if((buff_in == NULL) || (size_in < sizeof(int))) { printk(KERN_ERR "Enable sensor parameter error!\n"); err = -EINVAL; } else { value = *(int *)buff_in; if(value == 1) { atomic_set(&m_flag, 1); atomic_set(&open_flag, 1); } else { atomic_set(&m_flag, 0); if(atomic_read(&o_flag) == 0) { atomic_set(&open_flag, 0); } } wake_up(&open_wq); // TODO: turn device into standby or normal mode } break; case SENSOR_GET_DATA: if((buff_out == NULL) || (size_out< sizeof(hwm_sensor_data))) { printk(KERN_ERR "get sensor data parameter error!\n"); err = -EINVAL; } else { msensor_data = (hwm_sensor_data *)buff_out; mutex_lock(&sensor_data_mutex); msensor_data->values[0] = sensor_data[9] * CONVERT_M; msensor_data->values[1] = sensor_data[10] * CONVERT_M; msensor_data->values[2] = sensor_data[11] * CONVERT_M; msensor_data->status = sensor_data[4]; msensor_data->value_divide = CONVERT_M_DIV; mutex_unlock(&sensor_data_mutex); #if DEBUG if(atomic_read(&data->trace) & AMK_HWM_DEBUG) { AKMDBG("Hwm get m-sensor data: %d, %d, %d. divide %d, status %d!\n", msensor_data->values[0],msensor_data->values[1],msensor_data->values[2], msensor_data->value_divide,msensor_data->status); } #endif } break; default: printk(KERN_ERR "msensor operate function no this parameter %d!\n", command); err = -1; break; } return err; } /*----------------------------------------------------------------------------*/ int akm8975_orientation_operate(void* self, uint32_t command, void* buff_in, int size_in, void* buff_out, int size_out, int* actualout) { int err = 0; int value;// status, sample_delay hwm_sensor_data* osensor_data; #if DEBUG struct i2c_client *client = this_client; struct akm8975_i2c_data *data = i2c_get_clientdata(client); #endif #if DEBUG if(atomic_read(&data->trace) & AMK_FUN_DEBUG) { AKMFUNC("akm8975_orientation_operate"); } #endif switch (command) { case SENSOR_DELAY: if((buff_in == NULL) || (size_in < sizeof(int))) { printk(KERN_ERR "Set delay parameter error!\n"); err = -EINVAL; } else { value = *(int *)buff_in; if(value <= 20) { akmd_delay = 20; } akmd_delay = value; } break; case SENSOR_ENABLE: if((buff_in == NULL) || (size_in < sizeof(int))) { printk(KERN_ERR "Enable sensor parameter error!\n"); err = -EINVAL; } else { value = *(int *)buff_in; if(value == 1) { atomic_set(&o_flag, 1); atomic_set(&open_flag, 1); } else { atomic_set(&o_flag, 0); if(atomic_read(&m_flag) == 0) { atomic_set(&open_flag, 0); } } wake_up(&open_wq); } break; case SENSOR_GET_DATA: if((buff_out == NULL) || (size_out< sizeof(hwm_sensor_data))) { printk(KERN_ERR "get sensor data parameter error!\n"); err = -EINVAL; } else { osensor_data = (hwm_sensor_data *)buff_out; mutex_lock(&sensor_data_mutex); osensor_data->values[0] = sensor_data[0] * CONVERT_O; osensor_data->values[1] = sensor_data[1] * CONVERT_O; osensor_data->values[2] = sensor_data[2] * CONVERT_O; osensor_data->status = sensor_data[4]; osensor_data->value_divide = CONVERT_O_DIV; mutex_unlock(&sensor_data_mutex); #if DEBUG if(atomic_read(&data->trace) & AMK_HWM_DEBUG) { AKMDBG("Hwm get o-sensor data: %d, %d, %d. divide %d, status %d!\n", osensor_data->values[0],osensor_data->values[1],osensor_data->values[2], osensor_data->value_divide,osensor_data->status); } #endif } break; default: printk(KERN_ERR "gsensor operate function no this parameter %d!\n", command); err = -1; break; } return err; } /*----------------------------------------------------------------------------*/ #ifndef CONFIG_HAS_EARLYSUSPEND /*----------------------------------------------------------------------------*/ static int akm8975_suspend(struct i2c_client *client, pm_message_t msg) { int err; struct akm8975_i2c_data *obj = i2c_get_clientdata(client) if(msg.event == PM_EVENT_SUSPEND) { akm8975_power(obj->hw, 0); } return 0; } /*----------------------------------------------------------------------------*/ static int akm8975_resume(struct i2c_client *client) { int err; struct akm8975_i2c_data *obj = i2c_get_clientdata(client) akm8975_power(obj->hw, 1); return 0; } /*----------------------------------------------------------------------------*/ #else /*CONFIG_HAS_EARLY_SUSPEND is defined*/ /*----------------------------------------------------------------------------*/ static void akm8975_early_suspend(struct early_suspend *h) { struct akm8975_i2c_data *obj = container_of(h, struct akm8975_i2c_data, early_drv); //int err; if(NULL == obj) { printk(KERN_ERR "null pointer!!\n"); return; } } /*----------------------------------------------------------------------------*/ static void akm8975_late_resume(struct early_suspend *h) { struct akm8975_i2c_data *obj = container_of(h, struct akm8975_i2c_data, early_drv); //int err; if(NULL == obj) { printk(KERN_ERR "null pointer!!\n"); return; } akm8975_power(obj->hw, 1); } /*----------------------------------------------------------------------------*/ #endif /*CONFIG_HAS_EARLYSUSPEND*/ /*----------------------------------------------------------------------------*/ static int akm8975_i2c_detect(struct i2c_client *client, struct i2c_board_info *info) { strcpy(info->type, AKM8975_DEV_NAME); return 0; } /*----------------------------------------------------------------------------*/ static int akm8975_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_client *new_client; struct akm8975_i2c_data *data; int err = 0; struct hwmsen_object sobj_m, sobj_o; if(!(data = kmalloc(sizeof(struct akm8975_i2c_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } memset(data, 0, sizeof(struct akm8975_i2c_data)); data->hw = get_cust_mag_hw(); atomic_set(&data->layout, data->hw->direction); atomic_set(&data->trace, 0); mutex_init(&sense_data_mutex); mutex_init(&sensor_data_mutex); init_waitqueue_head(&data_ready_wq); init_waitqueue_head(&open_wq); data->client = client; new_client = data->client; i2c_set_clientdata(new_client, data); this_client = new_client; printk(KERN_ERR " AKM8975 akm8975_probe: befor init prob \n"); /* Check connection */ err = AKECS_CheckDevice(); if(err < 0) { printk(KERN_ERR "AKM8975 akm8975_probe: check device connect error\n"); goto exit_init_failed; } /* Register sysfs attribute */ if((err = akm8975_create_attr(&akm_sensor_driver.driver))) { printk(KERN_ERR "create attribute err = %d\n", err); goto exit_sysfs_create_group_failed; } if((err = misc_register(&akm8975_device))) { printk(KERN_ERR "akm8975_device register failed\n"); goto exit_misc_device_register_failed; } sobj_m.self = data; sobj_m.polling = 1; sobj_m.sensor_operate = akm8975_operate; if((err = hwmsen_attach(ID_MAGNETIC, &sobj_m))) { printk(KERN_ERR "attach fail = %d\n", err); goto exit_kfree; } sobj_o.self = data; sobj_o.polling = 1; sobj_o.sensor_operate = akm8975_orientation_operate; if((err = hwmsen_attach(ID_ORIENTATION, &sobj_o))) { printk(KERN_ERR "attach fail = %d\n", err); goto exit_kfree; } #if CONFIG_HAS_EARLYSUSPEND data->early_drv.level = EARLY_SUSPEND_LEVEL_STOP_DRAWING - 2, data->early_drv.suspend = akm8975_early_suspend, data->early_drv.resume = akm8975_late_resume, register_early_suspend(&data->early_drv); #endif AKMDBG("%s: OK\n", __func__); return 0; exit_sysfs_create_group_failed: exit_init_failed: exit_misc_device_register_failed: exit_kfree: kfree(data); exit: printk(KERN_ERR "%s: err = %d\n", __func__, err); return err; } /*----------------------------------------------------------------------------*/ static int akm8975_i2c_remove(struct i2c_client *client) { int err; if((err = akm8975_delete_attr(&akm_sensor_driver.driver))) { printk(KERN_ERR "akm8975_delete_attr fail: %d\n", err); } this_client = NULL; i2c_unregister_device(client); kfree(i2c_get_clientdata(client)); misc_deregister(&akm8975_device); return 0; } /*----------------------------------------------------------------------------*/ static int akm_probe(struct platform_device *pdev) { struct mag_hw *hw = get_cust_mag_hw(); akm8975_power(hw, 1); atomic_set(&dev_open_count, 0); //akm8975_force[0] = hw->i2c_num; if(i2c_add_driver(&akm8975_i2c_driver)) { printk(KERN_ERR "add driver error\n"); return -1; } return 0; } /*----------------------------------------------------------------------------*/ static int akm_remove(struct platform_device *pdev) { struct mag_hw *hw = get_cust_mag_hw(); akm8975_power(hw, 0); atomic_set(&dev_open_count, 0); i2c_del_driver(&akm8975_i2c_driver); return 0; } /*----------------------------------------------------------------------------*/ static int __init akm8975_init(void) { struct mag_hw *hw = get_cust_mag_hw(); MSE_LOG("%s: i2c_number=%d\n", __func__,hw->i2c_num); i2c_register_board_info(hw->i2c_num, &i2c_akm8975, 1); if(platform_driver_register(&akm_sensor_driver)) { printk(KERN_ERR "failed to register driver"); return -ENODEV; } return 0; } /*----------------------------------------------------------------------------*/ static void __exit akm8975_exit(void) { platform_driver_unregister(&akm_sensor_driver); } /*----------------------------------------------------------------------------*/ module_init(akm8975_init); module_exit(akm8975_exit); MODULE_AUTHOR("chunlei wang"); MODULE_DESCRIPTION("AKM8975 compass driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRIVER_VERSION);