Function intr_mbox

freebsd/arm/nvidia/tegra_xhci.c:708–739

}

static void
intr_mbox(void *arg)
{
	struct tegra_xhci_softc *sc;
	uint32_t reg, msg, resp_cmd, resp_data;

	sc = (struct tegra_xhci_softc *)arg;

	/* Clear interrupt first */
	reg = FPCI_RD4(sc, XUSB_CFG_ARU_SMI_INTR);
	FPCI_WR4(sc, XUSB_CFG_ARU_SMI_INTR, reg);
	if (reg & ARU_SMI_INTR_FW_HANG) {
		device_printf(sc->dev,
		    "XUSB CPU firmware hang!!! CPUCTL: 0x%08X\n",
		    CSB_RD4(sc, XUSB_FALCON_CPUCTL));
	}

	msg = FPCI_RD4(sc, T_XUSB_CFG_ARU_MAILBOX_DATA_OUT);
	resp_cmd = 0;
	process_msg(sc, ARU_MAILBOX_DATA_OUT_TYPE(msg),
	   ARU_MAILBOX_DATA_OUT_DATA(msg), &resp_cmd, &resp_data);
	if (resp_cmd != 0)
		mbox_send_ack(sc, resp_cmd, resp_data);
	else
		FPCI_WR4(sc, T_XUSB_CFG_ARU_MAILBOX_OWNER,
		    ARU_MAILBOX_OWNER_NONE);

	reg = FPCI_RD4(sc, T_XUSB_CFG_ARU_MAILBOX_CMD);
	reg &= ~ARU_MAILBOX_CMD_DEST_SMI;
	FPCI_WR4(sc, T_XUSB_CFG_ARU_MAILBOX_CMD, reg);

}

static int
load_fw(struct tegra_xhci_softc *sc)