2 * Device model for Cadence UART
4 * Copyright (c) 2010 Xilinx Inc.
5 * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.crosthwaite@petalogix.com)
6 * Copyright (c) 2012 PetaLogix Pty Ltd.
7 * Written by Haibing Ma
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 #ifndef CADENCE_UART_H
20 #define CADENCE_UART_H
22 #include "hw/qdev-properties.h"
23 #include "hw/sysbus.h"
24 #include "chardev/char-fe.h"
25 #include "qemu/timer.h"
27 #define CADENCE_UART_RX_FIFO_SIZE 16
28 #define CADENCE_UART_TX_FIFO_SIZE 16
30 #define CADENCE_UART_R_MAX (0x48/4)
32 #define TYPE_CADENCE_UART "cadence_uart"
33 #define CADENCE_UART(obj) OBJECT_CHECK(CadenceUARTState, (obj), \
38 SysBusDevice parent_obj
;
42 uint32_t r
[CADENCE_UART_R_MAX
];
43 uint8_t rx_fifo
[CADENCE_UART_RX_FIFO_SIZE
];
44 uint8_t tx_fifo
[CADENCE_UART_TX_FIFO_SIZE
];
48 uint64_t char_tx_time
;
51 QEMUTimer
*fifo_trigger_handle
;
54 static inline DeviceState
*cadence_uart_create(hwaddr addr
,
61 dev
= qdev_create(NULL
, TYPE_CADENCE_UART
);
62 s
= SYS_BUS_DEVICE(dev
);
63 qdev_prop_set_chr(dev
, "chardev", chr
);
64 qdev_init_nofail(dev
);
65 sysbus_mmio_map(s
, 0, addr
);
66 sysbus_connect_irq(s
, 0, irq
);