/**
* gpufreq_get_cur_state - callback function to get the current cooling state.
* @cdev: thermal cooling device pointer.
* @state: fill this variable with the current cooling state.
*
* Callback for the thermal cooling device to return the gpufreq
* current cooling state.
*
* Return: 0 on success, an error code otherwise.
*/
static int gpufreq_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
struct gpufreq_cooling_device *gpufreq_device = cdev->devdata;
unsigned long max_state = 0, temp = 0;
/* *state = gpufreq_device->gpufreq_state; */
gpufreq_get_max_state(cdev, &max_state);
if (gpufreq_device->get_gpu_current_max_level) {
temp = gpufreq_device->get_gpu_current_max_level();
*state = ((max_state - 1) - temp);
pr_debug("current max state=%ld\n", *state);
} else
return -EINVAL;
return 0;
}
/**
* gpufreq_set_cur_state - callback function to set the current cooling state.
* @cdev: thermal cooling device pointer.
* @state: set this variable to the current cooling state.
*
* Callback for the thermal cooling device to change the gpufreq
* current cooling state.
*
* Return: 0 on success, an error code otherwise.
*/
static int gpufreq_set_cur_state(struct thermal_cooling_device *cdev,
unsigned long state)
{
struct gpufreq_cooling_device *gpufreq_device = cdev->devdata;
unsigned long max_state;
int ret;
printk(KERN_DEBUG "state=%ld,gpufreq_device->gpufreq_state=%d\n",state,gpufreq_device->gpufreq_state);
//if (gpufreq_device->gpufreq_state == state)
//return 0;
gpufreq_device->gpufreq_state = state;
ret=gpufreq_get_max_state(cdev,&max_state);
state=max_state-1-state;
printk(KERN_DEBUG "state=%ld,gpufreq_device->gpufreq_state=%d\n",state,gpufreq_device->gpufreq_state);
if(state>=0 && state<=max_state){
if (gpufreq_device->set_gpu_freq_idx)
gpufreq_device->set_gpu_freq_idx((unsigned int)state);
}
return 0;
}
