C++ (Cpp) gpio_dvs_set_sleepgpio示例

示例#1

文件： suspend.c 项目： FyFyVy/android_kernel_samsung_j13g

/**
 * suspend_enter - Make the system enter the given sleep state.
 * @state: System sleep state to enter.
 * @wakeup: Returns information that the sleep state should not be re-entered.
 *
 * This function should be called after devices have been suspended.
 */
static int suspend_enter(suspend_state_t state, bool *wakeup)
{
	int error;

#ifdef CONFIG_SEC_GPIO_DVS
    /************************ Caution !!! ****************************/
    /* This function must be located in appropriate SLEEP position
     * in accordance with the specification of each BB vendor.
     */
    /************************ Caution !!! ****************************/
    gpio_dvs_check_sleepgpio();
#ifdef SECGPIO_SLEEP_DEBUGGING
    /************************ Caution !!! ****************************/
    /* This func. must be located in an appropriate position for GPIO SLEEP debugging
     * in accordance with the specification of each BB vendor, and 
     * the func. must be called after calling the function "gpio_dvs_check_sleepgpio"
     */
    /************************ Caution !!! ****************************/
    gpio_dvs_set_sleepgpio();
#endif
#endif

	if (suspend_ops->prepare) {
		error = suspend_ops->prepare();
		if (error)
			goto Platform_finish;
	}

	error = dpm_suspend_end(PMSG_SUSPEND);
	if (error) {
		printk(KERN_ERR "PM: Some devices failed to power down\n");
		goto Platform_finish;
	}

	if (suspend_ops->prepare_late) {
		error = suspend_ops->prepare_late();
		if (error)
			goto Platform_wake;
	}

	if (suspend_test(TEST_PLATFORM))
		goto Platform_wake;

	error = disable_nonboot_cpus();
	if (error || suspend_test(TEST_CPUS))
		goto Enable_cpus;

	arch_suspend_disable_irqs();
	BUG_ON(!irqs_disabled());

	error = syscore_suspend();
	if (!error) {
		*wakeup = pm_wakeup_pending();
		if (!(suspend_test(TEST_CORE) || *wakeup)) {
			error = suspend_ops->enter(state);
			events_check_enabled = false;
		}
		syscore_resume();
	}

	arch_suspend_enable_irqs();
	BUG_ON(irqs_disabled());

 Enable_cpus:
	enable_nonboot_cpus();

 Platform_wake:
	if (suspend_ops->wake)
		suspend_ops->wake();

	dpm_resume_start(PMSG_RESUME);

 Platform_finish:
	if (suspend_ops->finish)
		suspend_ops->finish();

	return error;
}

示例#2

文件： suspend.c 项目： TheNikiz/android_kernel_samsung_hawaii

/**
 * suspend_enter - Make the system enter the given sleep state.
 * @state: System sleep state to enter.
 * @wakeup: Returns information that the sleep state should not be re-entered.
 *
 * This function should be called after devices have been suspended.
 */
static int suspend_enter(suspend_state_t state, bool *wakeup)
{
	int error;

#ifdef CONFIG_SEC_GPIO_DVS
	/************************ Caution !!! ****************************/
	/* This function must be located in appropriate SLEEP position
     * in accordance with the specification of each BB vendor.
     */
	/************************ Caution !!! ****************************/
	gpio_dvs_check_sleepgpio();
#ifdef SECGPIO_SLEEP_DEBUGGING
	/************************ Caution !!! ****************************/
	/* This func. must be located in an appropriate position for GPIO SLEEP debugging
     * in accordance with the specification of each BB vendor, and 
     * the func. must be called after calling the function "gpio_dvs_check_sleepgpio"
     */
	/************************ Caution !!! ****************************/
	gpio_dvs_set_sleepgpio();
#endif
#endif

	if (need_suspend_ops(state) && suspend_ops->prepare) {
		error = suspend_ops->prepare();
		if (error)
			goto Platform_finish;
	}

	error = dpm_suspend_end(PMSG_SUSPEND);
	if (error) {
		printk(KERN_ERR "PM: Some devices failed to power down\n");
		goto Platform_finish;
	}

	if (need_suspend_ops(state) && suspend_ops->prepare_late) {
		error = suspend_ops->prepare_late();
		if (error)
			goto Platform_wake;
	}

	if (suspend_test(TEST_PLATFORM))
		goto Platform_wake;

	/*
	 * PM_SUSPEND_FREEZE equals
	 * frozen processes + suspended devices + idle processors.
	 * Thus we should invoke freeze_enter() soon after
	 * all the devices are suspended.
	 */
	if (state == PM_SUSPEND_FREEZE) {
		freeze_enter();
		goto Platform_wake;
	}

	error = disable_nonboot_cpus();
	if (error || suspend_test(TEST_CPUS))
		goto Enable_cpus;

	arch_suspend_disable_irqs();
	BUG_ON(!irqs_disabled());

	error = syscore_suspend();
	if (!error) {
		*wakeup = pm_wakeup_pending();
		if (!(suspend_test(TEST_CORE) || *wakeup)) {
			error = suspend_ops->enter(state);
			events_check_enabled = false;
		}
		syscore_resume();
	}
#if defined(CONFIG_SEC_GPIO_DVS) && defined(SECGPIO_SLEEP_DEBUGGING)
	/************************ Caution !!! ****************************/
	/* This function must be located in an appropriate position
	 * to undo gpio SLEEP debugging setting when DUT wakes up.
	 * It should be implemented in accordance with the specification of each BB vendor.
	 */
	/************************ Caution !!! ****************************/
	gpio_dvs_undo_sleepgpio();
#endif

	arch_suspend_enable_irqs();
	BUG_ON(irqs_disabled());

 Enable_cpus:
	enable_nonboot_cpus();

 Platform_wake:
	if (need_suspend_ops(state) && suspend_ops->wake)
		suspend_ops->wake();

	dpm_resume_start(PMSG_RESUME);

 Platform_finish:
	if (need_suspend_ops(state) && suspend_ops->finish)
		suspend_ops->finish();

	return error;
}