static long gsensor_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int temp;
int ret[2];
switch(cmd)
{
case GSENSOR_IOCTL_G_X:
if(is_data_ready() == 0)
{
//printk("gsensor not ready!\n");
return -EAGAIN;
}
temp = mxc6225XU_read(CMD_RD_X);
//temp = 1;
if(copy_to_user((void __user *)arg,&temp,sizeof(int)))
return -EFAULT;
break;
case GSENSOR_IOCTL_G_Y:
if(is_data_ready() == 0)
{
//printk("gsensor not ready!\n");
return -EAGAIN;
}
temp = mxc6225XU_read(CMD_RD_Y);
//temp = 2;
if(copy_to_user((void __user *)arg,&temp,sizeof(int)))
return -EFAULT;
break;
//huanggq
case GSENSOR_IOCTL_G_STATE:
if(is_data_ready() == 0)
{
//printk("gsensor not ready!\n");
return -EAGAIN;
}
ret[0] = (state_val & 0x60)>>5; // shake
if( (state_val & 0x10) != 0 )
ret[1] = state_val & 0x03; // orientation
else
ret[1] = 0;
//ret[0] = 5;
//ret[1] = 3;
if( copy_to_user((void __user *)arg, ret, sizeof(int)*2) )
return -EFAULT;
break;
default:
return -EINVAL;
}
return 0;
}
static int read(const struct motion_sensor_t *s, vector_3_t v)
{
uint8_t raw[6];
uint8_t xyz_reg;
int ret, range, i, tmp = 0;
struct l3gd20_data *data = s->drv_data;
ret = is_data_ready(s, &tmp);
if (ret != EC_SUCCESS)
return ret;
/*
* If sensor data is not ready, return the previous read data.
* Note: return success so that motion senor task can read again
* to get the latest updated sensor data quickly.
*/
if (!tmp) {
if (v != s->raw_xyz)
memcpy(v, s->raw_xyz, sizeof(s->raw_xyz));
return EC_SUCCESS;
}
xyz_reg = get_xyz_reg(s->type);
/* Read 6 bytes starting at xyz_reg */
i2c_lock(s->port, 1);
ret = i2c_xfer(s->port, s->addr,
&xyz_reg, 1, raw, 6, I2C_XFER_SINGLE);
i2c_lock(s->port, 0);
if (ret != EC_SUCCESS) {
CPRINTF("[%T %s type:0x%X RD XYZ Error]",
s->name, s->type);
return ret;
}
for (i = X; i <= Z; i++)
v[i] = ((int16_t)((raw[i * 2 + 1] << 8) | raw[i * 2]));
if (s->rot_standard_ref)
rotate(v, *s->rot_standard_ref, v);
/* apply offset in the device coordinates */
range = get_range(s);
for (i = X; i <= Z; i++)
v[i] += (data->offset[i] << 5) / range;
return EC_SUCCESS;
}