/* open command for l3g4200d device file */
static int l3g4200d_open(struct inode *inode, struct file *file)
{
if (gyro->client == NULL) {
GYRO_DBG( "I2C driver not install\n");
return -1;
}
device_init();
hrtimer_start(&gyro->timer, ktime_set(0, NORMAL_TM), HRTIMER_MODE_REL);
gyro->flags = 1;
GYRO_DBG("l3g4200d has been opened\n");
return nonseekable_open(inode, file);
}
/* read command for l3g4200d device file */
static ssize_t l3g4200d_read(struct file *file, char __user *buf,
size_t count, loff_t *offset)
{
struct l3g4200d_t data;
if (gyro->client == NULL)
return -1;
l3g4200d_read_gyro_values(&data);
GYRO_DBG("X axis: %d\n", data.x);
GYRO_DBG("Y axis: %d\n", data.y);
GYRO_DBG("Z axis: %d\n", data.z);
return 0;
}
static void gy_late_resume(struct early_suspend *h)
{
struct l3g4200d_data *gy;
gy = container_of(h, struct l3g4200d_data, early_suspend);
l3g4200d_resume(gy->client);
GYRO_DBG("L3G4200D driver l3g4200d_resume\n");
}
static void gy_early_suspend(struct early_suspend *h)
{
struct l3g4200d_data *gy;
gy = container_of(h, struct l3g4200d_data, early_suspend);
l3g4200d_suspend(gy->client, PMSG_SUSPEND);
GYRO_DBG("L3G4200D driver gy_early_suspend\n");
}
/* release command for l3g4200d device file */
static int l3g4200d_close(struct inode *inode, struct file *file)
{
int ret = -1;
if (gyro == NULL || gyro->client == NULL) {
GYRO_DBG( "I2C driver not install\n");
return -1;
}
hrtimer_cancel(&gyro->timer);
ret = l3g4200d_set_mode(PM_OFF);
if(ret < 0)
{
printk(KERN_ERR "close device i2c set mode PM_OFF err!\n");
}
gyro->flags = -1;
GYRO_DBG("L3G4200D has been closed\n");
return 0;
}
/* write command for l3g4200d device file */
static ssize_t l3g4200d_write(struct file *file, const char __user *buf,
size_t count, loff_t *offset)
{
if (gyro->client == NULL)
return -1;
GYRO_DBG("l3g4200d should be accessed with ioctl command\n");
return 0;
}
static void gy_work_func(struct work_struct *work)
{
int sesc = 0;
struct l3g4200d_data *gy = container_of(work, struct l3g4200d_data, work);
memset(&sensor_data, 0, sizeof(sensor_data));
if (gy->client == NULL)
{
printk(KERN_ERR "gy client is null");
return;
}
sesc = 0;
l3g4200d_read_gyro_values(&sensor_data);
GYRO_DBG( "X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
if (atomic_read(&a_flag))
{
GYRO_DBG("report fusion event to input dev!");
input_report_abs(gy->input_dev, ABS_RX, fusiondata[0]);
input_report_abs(gy->input_dev, ABS_RY, fusiondata[1]);
input_report_abs(gy->input_dev, ABS_RZ, fusiondata[2]);
input_report_abs(gy->input_dev, ABS_THROTTLE, fusiondata[3]);
input_report_abs(gy->input_dev, ABS_RUDDER, fusiondata[4]);
input_report_abs(gy->input_dev, ABS_WHEEL, fusiondata[5]);
input_report_abs(gy->input_dev, ABS_GAS, fusiondata[6]);
input_report_abs(gy->input_dev, ABS_BRAKE, fusiondata[7]);
input_report_abs(gy->input_dev, ABS_HAT0X, fusiondata[8]);
input_report_abs(gy->input_dev, ABS_HAT0Y, fusiondata[9]);
atomic_set(&a_flag, 0);
}
input_report_abs(gy->input_dev, ABS_X, sensor_data.x);//cross x,y adapter hal sensors_akm8973.c
input_report_abs(gy->input_dev, ABS_Y, sensor_data.y);
input_report_abs(gy->input_dev, ABS_Z, sensor_data.z);
input_sync(gy->input_dev);
/*initalize timer os gyro*/
if(gyro->flags > 0)
{
hrtimer_start(&gy->timer, ktime_set(sesc, NORMAL_TM), HRTIMER_MODE_REL);
}
else
{
hrtimer_start(&gy->timer, ktime_set(SUSPEND_VAL, 0), HRTIMER_MODE_REL);
}
}
static int l3g4200d_remove(struct i2c_client *client)
{
struct l3g4200d_data *lis = i2c_get_clientdata(client);
unregister_early_suspend(&lis->early_suspend);
hrtimer_cancel(&lis->timer);
misc_deregister(&gysensor_device);
input_unregister_device(lis->input_dev);
kfree(lis);
GYRO_DBG("L3G4200D driver removing\n");
return 0;
}
/* i2c write routine for l3g4200d digital gyroscope */
static char l3g4200d_i2c_write(unsigned char reg_addr,
unsigned char *data,
unsigned char len)
{
int dummy;
int i;
if (gyro->client == NULL) /* No global client pointer? */
return -1;
for (i = 0; i < len; i++) {
dummy = i2c_smbus_write_byte_data(gyro->client,
reg_addr++, data[i]);
if (dummy) {
GYRO_DBG("i2c write error\n");
return dummy;
}
}
return 0;
}
/* i2c read routine for l3g4200d digital gyroscope */
static char l3g4200d_i2c_read(unsigned char reg_addr,
unsigned char *data,
unsigned char len)
{
int dummy = 0;
int i = 0;
if (gyro->client == NULL) /* No global client pointer? */
return -1;
while (i < len) {
dummy = i2c_smbus_read_word_data(gyro->client, reg_addr++);
if (dummy >= 0) {
data[i] = dummy & 0x00ff;
//printk(KERN_ERR" i2c read %d %d %x\n ",i, data[i], reg_addr-1);
i++;
} else {
GYRO_DBG(" i2c read error\n ");
return dummy;
}
dummy = len;
//usleep_range(3000, 6000);
}
return dummy;
}
static int l3g4200d_probe(struct i2c_client *client,
const struct i2c_device_id *devid)
{
struct l3g4200d_data *data;
struct gyro_platform_data *platform_data = NULL;
int ret = -1;
int tempvalue;
GYRO_DBG("l3g4200d_probe start!\n");
if (client->dev.platform_data == NULL) {
dev_err(&client->dev, "platform data is NULL. exiting.\n");
ret = -ENODEV;
goto exit;
}
platform_data = client->dev.platform_data;
if(platform_data->gyro_power)
{
ret = platform_data->gyro_power(IC_PM_ON);
if( ret < 0)
{
dev_err(&client->dev, "gyro power on error!\n");
goto exit;
}
}
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
ret = -ENODEV;
goto exit_pm_off;
}
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK)){
ret = -ENODEV;
goto exit_pm_off;
}
/*
* OK. For now, we presume we have a valid client. We now create the
* client structure, even though we cannot fill it completely yet.
*/
data = kzalloc(sizeof(struct l3g4200d_data), GFP_KERNEL);
if (NULL == data) {
dev_err(&client->dev,
"failed to allocate memory for module data\n");
ret = -ENOMEM;
goto exit_pm_off;
}
mutex_init(&data->mlock);
INIT_WORK(&data->work, gy_work_func);
i2c_set_clientdata(client, data);
data->client = client;
data->pdata = platform_data;
ret = l3g4200d_validate_pdata(data);
if (ret < 0) {
dev_err(&client->dev, "failed to validate platform data\n");
goto exit_kfree;
}
ret = i2c_smbus_read_byte(client);
if ( ret < 0) {
GYRO_DBG("i2c_smbus_read_byte error!!\n");
goto err_detect_failed;
} else {
GYRO_DBG("L3G4200D Device detected!\n");
}
/* read chip id */
tempvalue = i2c_smbus_read_word_data(client, WHO_AM_I);
if ((tempvalue & 0x00FF) == 0x00D3) {
GYRO_DBG("I2C driver registered!\n");
} else {
data->client = NULL;
ret = -ENODEV;
goto err_detect_failed;
}
if (sensor_dev == NULL)
{
data->input_dev = input_allocate_device();
if (data->input_dev == NULL) {
ret = -ENOMEM;
printk(KERN_ERR "gs_probe: Failed to allocate input device\n");
goto err_input_dev_alloc_failed;
}
data->input_dev->name = "gy_sensors";
sensor_dev = data->input_dev;
}else{
data->input_dev = sensor_dev;
}
data->input_dev->id.vendor = VENDOR;
#if 0
set_bit(EV_REL,data->input_dev->evbit);
set_bit(REL_RX, data->input_dev->absbit);
set_bit(REL_RY, data->input_dev->absbit);
set_bit(REL_RZ, data->input_dev->absbit);
#endif
set_bit(EV_ABS,data->input_dev->evbit);
/* modify the func of init */
input_set_abs_params(data->input_dev, ABS_RX, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_RY, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_RZ, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_X, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_Y, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_Z, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_THROTTLE, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_RUDDER, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_WHEEL, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_GAS, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_HAT0X, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_HAT0Y, MIN_VALUE, MAX_VALUE, 0, 0);
input_set_abs_params(data->input_dev, ABS_BRAKE, MIN_VALUE, MAX_VALUE, 0, 0);
set_bit(EV_SYN,data->input_dev->evbit);
data->input_dev->id.bustype = BUS_I2C;
input_set_drvdata(data->input_dev, data);
ret = input_register_device(data->input_dev);
if (ret) {
printk(KERN_ERR "gy_probe: Unable to register %s input device\n", data->input_dev->name);
/* create l3g-dev device class */
goto err_input_register_device_failed;
}
ret = misc_register(&gysensor_device);
if (ret) {
printk(KERN_ERR "gy_probe: gysensor_device register failed\n");
goto err_misc_device_register_failed;
}
hrtimer_init(&data->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
data->timer.function = gy_timer_func;
atomic_set(&a_flag, 0);
data->flags = -1;
#ifdef CONFIG_HAS_EARLYSUSPEND
data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
data->early_suspend.suspend = gy_early_suspend;
data->early_suspend.resume = gy_late_resume;
register_early_suspend(&data->early_suspend);
#endif
GYRO_DBG("L3G4200D device created successfully\n");
gy_wq = create_singlethread_workqueue("gy_wq");
if (!gy_wq)
return -ENOMEM;
gyro = data;
// hrtimer_start(&this_gs_data->timer, ktime_set(0, 500000000), HRTIMER_MODE_REL);
#ifdef CONFIG_HUAWEI_HW_DEV_DCT
/* detect current device successful, set the flag as present */
set_hw_dev_flag(DEV_I2C_GYROSCOPE);
#endif
printk(KERN_DEBUG "l3g4200d_probe successful");
return 0;
err_misc_device_register_failed:
misc_deregister(&gysensor_device);
err_input_register_device_failed:
input_free_device(gyro->input_dev);
err_input_dev_alloc_failed:
err_detect_failed:
exit_kfree:
kfree(gyro);
exit_pm_off:
if(platform_data->gyro_power)
{
platform_data->gyro_power(IC_PM_OFF);
}
exit:
return ret;
}
/* modify iotcl interface */
static long l3g4200d_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int err = 0;
unsigned char data[6];
short flag = 1;
int val = 0;
void __user *argp = (void __user *)arg;
/* check l3g4200d_client */
if (gyro->client == NULL) {
GYRO_DBG( "I2C driver not install\n");
return -EFAULT;
}
/* cmd mapping */
switch (cmd) {
case L3G4200D_SET_RANGE:
if (copy_from_user(data, argp, 1) != 0) {
GYRO_DBG( "copy_from_user error\n");
return -EFAULT;
}
err = l3g4200d_set_range(*data);
return err;
case L3G4200D_SET_MODE:
if (copy_from_user(data, argp, 1) != 0) {
GYRO_DBG( "copy_to_user error\n");
return -EFAULT;
}
/*enable or disable timer*/
if( PM_NORMAL == *data )
{
gyro->flags = GYRO_ENABLE;
hrtimer_start(&gyro->timer, ktime_set(0, NORMAL_TM), HRTIMER_MODE_REL);
}
else
{
err = 0;
gyro->flags = GYRO_DISABLE;
}
GYRO_DBG("L3G4200D_SET_MODE %d\n", *data);
err = l3g4200d_set_mode(*data);
return err;
case L3G4200D_SET_BANDWIDTH:
if (copy_from_user(data, argp, 1) != 0) {
GYRO_DBG("copy_from_user error\n");
return -EFAULT;
}
err = l3g4200d_set_bandwidth(*data);
return err;
case L3G4200D_READ_GYRO_VALUES:
err = l3g4200d_read_gyro_values(
(struct l3g4200d_t *)data);
if (copy_to_user((struct l3g4200d_t *)arg,
(struct l3g4200d_t *)data, 6) != 0) {
GYRO_DBG("copy_to error\n");
return -EFAULT;
}
return err;
case L3G4200D_SET_FUSION_DATA:
if(copy_from_user((void*)fusiondata, argp, sizeof(fusiondata)) != 0){
return -EFAULT;
}
atomic_set(&a_flag, 1);
GYRO_DBG("L3G4200D_SET_FUSION_DATA copy_from error\n");
return err;
case L3G4200D_GET_GYRO_DATA:
if(copy_to_user(argp, &userdata[0], sizeof(userdata))!= 0)
{
return -EFAULT;
}
GYRO_DBG("L3G4200D_GET_GYRO_DATA copy_to error\n");
return 0;
case ECS_IOCTL_APP_GET_GYRO_DATA:
hrtimer_cancel(&gyro->timer);
memset(&sensor_data, 0, sizeof(sensor_data));
err = l3g4200d_read_gyro_values(&sensor_data);
if(err < 0)
{
GYRO_DBG("L3G4200D ECS_IOCTL_APP_GET_GYRO_DATA TEST error!\n");
return err;
}
GYRO_DBG(" before X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
if(copy_to_user(argp, &sensor_data, sizeof(sensor_data))!= 0)
{
GYRO_DBG("ECS_IOCTL_APP_GET_GYRO_DATA copy to user error\n");
return -EFAULT;
}
return 0;
case ECS_IOCTL_APP_GET_GYRO_CAL:
GYRO_DBG("L3G4200D mmi get ret!\n");
/* self-test flowchart update*/
hrtimer_cancel(&gyro->timer);
memset(&sensor_data, 0, sizeof(sensor_data));
err = l3g4200d_read_gyro_values(&sensor_data);
printk(KERN_ERR " before X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
l3g4200d_set_selftest(L3G4200D_SELFTEST_EN);
msleep(800);
err = l3g4200d_read_gyro_values(&sensor_data);
printk(KERN_ERR "after X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
if(err < 0)
{
GYRO_DBG("L3G4200D SELF-TEST read error!\n");
return err;
}
/*put data to user*/
if (copy_to_user(argp, &sensor_data, sizeof(sensor_data)))
{
return -EFAULT;
}
l3g4200d_disable_selftest();
return 0;
case ECS_IOCTL_APP_GET_CAL:
GYRO_DBG("L3G4200D mmi get ret!\n");
/* self-test flowchart update*/
hrtimer_cancel(&gyro->timer);
memset(&sensor_data, 0, sizeof(sensor_data));
err = l3g4200d_read_gyro_values(&sensor_data);
printk(KERN_ERR " before X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
l3g4200d_set_selftest(L3G4200D_SELFTEST_EN);
msleep(800);
err = l3g4200d_read_gyro_values(&sensor_data);
printk(KERN_ERR "after X axis: %d Y axis: %d Z axis: %d\n", sensor_data.x,sensor_data.y,sensor_data.z);
if(err < 0)
{
GYRO_DBG("L3G4200D SELF-TEST read error!\n");
return err;
}
val = abs(sensor_data.x);
if( (val > MAX_VAL) || (val < MIN_VAL) )
{
flag = -1;
GYRO_DBG("L3G4200D SELF-TEST x %d error!\n", val);
}
val = abs(sensor_data.y);
if( (val > MAX_VAL) || (val < MIN_VAL) )
{
flag = -1;
GYRO_DBG("L3G4200D SELF-TEST y %d error!\n", val);
}
val = abs(sensor_data.z);
if( (val > MAX_VAL) || (val < MIN_VAL) )
{
flag = -1;
GYRO_DBG("L3G4200D SELF-TEST z %d error!\n", val);
}
if (copy_to_user(argp, &flag, sizeof(flag))) {
return -EFAULT;
}
l3g4200d_disable_selftest();
return 0;
default:
return 0;
}
return err;
}