interrupt_controller: ioapic: support more device power states (dabf2375) · Commits · Wenxi XU / zephyr

drivers/interrupt_controller/intc_ioapic.c

+21 −5

Original line number	Diff line number	Diff line
		@@ -255,7 +255,6 @@ int ioapic_suspend(const struct device *port)
		store_flags(irq, rte_lo);
		}
		}
		ioapic_device_power_state = DEVICE_PM_SUSPEND_STATE;
		return 0;
		}

		@@ -285,7 +284,6 @@ int ioapic_resume_from_suspend(const struct device *port)
		ioApicRedSetHi(irq, DEFAULT_RTE_DEST);
		ioApicRedSetLo(irq, rteValue);
		}
		ioapic_device_power_state = DEVICE_PM_ACTIVE_STATE;
		return 0;
		}

		@@ -300,11 +298,29 @@ static int ioapic_device_ctrl(const struct device *device,
		int ret = 0;

		if (ctrl_command == DEVICE_PM_SET_POWER_STATE) {
		if (((uint32_t )context) == DEVICE_PM_SUSPEND_STATE) {
		ret = ioapic_suspend(device);
		} else if (((uint32_t )context) == DEVICE_PM_ACTIVE_STATE) {
		uint32_t new_state = ((uint32_t )context);

		switch (new_state) {
		case DEVICE_PM_LOW_POWER_STATE:
		break;
		case DEVICE_PM_ACTIVE_STATE:
		if (ioapic_device_power_state !=
		DEVICE_PM_LOW_POWER_STATE) {
		ret = ioapic_resume_from_suspend(device);
		}
		break;
		case DEVICE_PM_SUSPEND_STATE:
		case DEVICE_PM_FORCE_SUSPEND_STATE:
		case DEVICE_PM_OFF_STATE:
		ret = ioapic_suspend(device);
		break;
		default:
		ret = -ENOTSUP;
		}

		if (ret == 0) {
		ioapic_device_power_state = new_state;
		}
		} else if (ctrl_command == DEVICE_PM_GET_POWER_STATE) {
		((uint32_t )context) = ioapic_device_power_state;
		}