diff options
Diffstat (limited to 'include/hw/char/cadence_uart.h')
| -rw-r--r-- | include/hw/char/cadence_uart.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/hw/char/cadence_uart.h b/include/hw/char/cadence_uart.h new file mode 100644 index 0000000..6310f52 --- /dev/null +++ b/include/hw/char/cadence_uart.h @@ -0,0 +1,53 @@ +/* + * 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 + +#include "hw/sysbus.h" +#include "sysemu/char.h" +#include "qemu/timer.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" +#define CADENCE_UART(obj) OBJECT_CHECK(CadenceUARTState, (obj), \ + TYPE_CADENCE_UART) + +typedef struct { + /*< 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; + CharDriverState *chr; + qemu_irq irq; + QEMUTimer *fifo_trigger_handle; +} CadenceUARTState; + +#define CADENCE_UART_H +#endif |
