static int camera_dev_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int rc = 0;
if (!bHaveResetGpio) {
ddbg_print("Requesting reset gpio\n");
rc = gpio_request(gpio_reset, "camera reset");
if (!rc)
bHaveResetGpio = 1;
}
if (!bHavePowerDownGpio) {
ddbg_print("Requesting powerdown gpio\n");
rc = gpio_request(gpio_powerdown, "camera powerdown");
if (!rc)
bHavePowerDownGpio = 1;
}
ddbg_print("camera ioctl cmd = %u, arg = %lu\n", cmd, arg);
switch (cmd) {
case CAMERA_RESET_WRITE:
if (bHaveResetGpio) {
gpio_direction_output(gpio_reset, 0);
gpio_set_value(gpio_reset, (arg ? 1 : 0));
dbg_print("CAMERA_MISC set RESET line to %u\n",
(arg ? 1 : 0));
}
if (!bHaveResetGpio) {
err_print ("CAMERA_MISC: gpio_request () failed. \
rc = %d; cmd = %d; arg = %lu", rc, cmd, arg);
return -EIO;
}
break;
case CAMERA_POWERDOWN_WRITE:
if (bHavePowerDownGpio) {
gpio_direction_output(gpio_powerdown, 0);
if (0 == arg)
gpio_set_value(gpio_powerdown, 0);
else
gpio_set_value(gpio_powerdown, 1);
dbg_print("CAMERA_MISC set POWERDOWN line to %u\n",
(arg ? 1 : 0));
}
if (!bHavePowerDownGpio) {
err_print ("CAMERA_MISC: gpio_request () failed. \
rc = %d; cmd = %u; arg = %lu", rc, cmd, arg);
return -EIO;
}
static int camera_dev_release(struct inode *inode, struct file *file)
{
// TO DO REMOVE
ddbg_print( "camera0 closed\n");
// TO DO REMOVE
return 0;
}
static int camera_dev_open(struct inode *inode, struct file *file)
{
// TO DO REMOVE
ddbg_print( "camera0 opened\n");
// TO DO REMOVE
return 0;
}
static int __init camera_misc_init(void)
{
ddbg_print("camera misc init\n" );
if(misc_register( &cam_misc_device0 ))
{
err_print( "error in register camera misc device!\n" );
return -EIO;
}
return 0;
}
static int camera_dev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
int rc;
ddbg_print( "camera ioctl cmd = %u, arg = %lu\n", cmd, arg);
switch(cmd)
{
case CAMERA_RESET_WRITE:
rc = gpio_request (GPIO_RESET, GPIO_SENSOR_NAME);
if (!rc)
{
gpio_direction_output (GPIO_RESET, (arg ? 1 : 0));
dbg_print( "CAMERA_MISC set RESET line to %u\n", (arg ? 1 : 0));
}
gpio_free (GPIO_RESET);
if (rc)
{
err_print ("CAMERA_MISC: gpio_request () failed. rc = %d; cmd = %d; arg = %lu", rc, cmd, arg);
return -EIO;
}
break;
case CAMERA_POWERDOWN_WRITE:
rc = gpio_request (GPIO_POWERDOWN, GPIO_SENSOR_NAME);
if (!rc)
{
if (0 == arg)
{
#if 0 // TODO: NEED TO HANDLE MCLK
msm_camio_camif_pad_reg_reset();
mdelay (50);
#endif // TODO: NEED TO HANDLE MCLK
rc = gpio_direction_output (GPIO_POWERDOWN, 0);
}
else
{
rc = gpio_direction_output (GPIO_POWERDOWN, 1);
}
dbg_print( "CAMERA_MISC set POWERDOWN line to %u\n", (arg ? 1 : 0));
}
gpio_free (GPIO_POWERDOWN);
if (rc)
{
err_print ("CAMERA_MISC: gpio_request () failed. rc = %d; cmd = %u; arg = %lu", rc, cmd, arg);
return -EIO;
}
break;
case CAMERA_CLOCK_DISABLE:
msm_camio_camif_pad_reg_reset();
dbg_print( "CAMERA_MISC turned off MCLK done\n");
break;
case CAMERA_CLOCK_ENABLE:
/* enable mclk */
msm_camio_clk_rate_set ((int)arg);
dbg_print( "CAMERA_MISC set MCLK to %d\n", (int) arg);
break;
default:
err_print( "CAMERA_MISC received unsupported cmd; cmd = %u\n", cmd);
return -EIO;
break;
}
return 0;
}
static void __exit camera_misc_exit(void)
{
ddbg_print("camera misc exit\n" );
misc_deregister( &cam_misc_device0 );
}
