/* * Device model for Cadence UART * * Copyright (c) 2010 Xilinx Inc. * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.crosthwaite@petalogix.com) * Copyright (c) 2012 PetaLogix Pty Ltd. * Written by Haibing Ma * M.Habib * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * You should have received a copy of the GNU General Public License along * with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef CADENCE_UART_H #define CADENCE_UART_H #include "hw/qdev-properties.h" #include "hw/sysbus.h" #include "chardev/char-fe.h" #include "qapi/error.h" #include "qemu/timer.h" #include "qom/object.h" #define CADENCE_UART_RX_FIFO_SIZE 16 #define CADENCE_UART_TX_FIFO_SIZE 16 #define CADENCE_UART_R_MAX (0x48/4) #define TYPE_CADENCE_UART "cadence_uart" OBJECT_DECLARE_SIMPLE_TYPE(CadenceUARTState, CADENCE_UART) struct CadenceUARTState { /*< private >*/ SysBusDevice parent_obj; /*< public >*/ MemoryRegion iomem; uint32_t r[CADENCE_UART_R_MAX]; uint8_t rx_fifo[CADENCE_UART_RX_FIFO_SIZE]; uint8_t tx_fifo[CADENCE_UART_TX_FIFO_SIZE]; uint32_t rx_wpos; uint32_t rx_count; uint32_t tx_count; uint64_t char_tx_time; CharBackend chr; qemu_irq irq; QEMUTimer *fifo_trigger_handle; Clock *refclk; }; #endif