mirror of
https://github.com/qemu/qemu.git
synced 2025-10-31 12:07:31 +00:00
e38d3c5ce5
$ ./scripts/codeconverter/converter.py -i \ --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]') Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200831210740.126168-12-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
|
|
* SiFive UART interface
|
|
*
|
|
* Copyright (c) 2016 Stefan O'Rear
|
|
* Copyright (c) 2017 SiFive, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2 or later, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* 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 HW_SIFIVE_UART_H
|
|
#define HW_SIFIVE_UART_H
|
|
|
|
#include "chardev/char-fe.h"
|
|
#include "hw/sysbus.h"
|
|
#include "qom/object.h"
|
|
|
|
enum {
|
|
SIFIVE_UART_TXFIFO = 0,
|
|
SIFIVE_UART_RXFIFO = 4,
|
|
SIFIVE_UART_TXCTRL = 8,
|
|
SIFIVE_UART_TXMARK = 10,
|
|
SIFIVE_UART_RXCTRL = 12,
|
|
SIFIVE_UART_RXMARK = 14,
|
|
SIFIVE_UART_IE = 16,
|
|
SIFIVE_UART_IP = 20,
|
|
SIFIVE_UART_DIV = 24,
|
|
SIFIVE_UART_MAX = 32
|
|
};
|
|
|
|
enum {
|
|
SIFIVE_UART_IE_TXWM = 1, /* Transmit watermark interrupt enable */
|
|
SIFIVE_UART_IE_RXWM = 2 /* Receive watermark interrupt enable */
|
|
};
|
|
|
|
enum {
|
|
SIFIVE_UART_IP_TXWM = 1, /* Transmit watermark interrupt pending */
|
|
SIFIVE_UART_IP_RXWM = 2 /* Receive watermark interrupt pending */
|
|
};
|
|
|
|
#define SIFIVE_UART_GET_TXCNT(txctrl) ((txctrl >> 16) & 0x7)
|
|
#define SIFIVE_UART_GET_RXCNT(rxctrl) ((rxctrl >> 16) & 0x7)
|
|
|
|
#define TYPE_SIFIVE_UART "riscv.sifive.uart"
|
|
|
|
typedef struct SiFiveUARTState SiFiveUARTState;
|
|
DECLARE_INSTANCE_CHECKER(SiFiveUARTState, SIFIVE_UART,
|
|
TYPE_SIFIVE_UART)
|
|
|
|
struct SiFiveUARTState {
|
|
/*< private >*/
|
|
SysBusDevice parent_obj;
|
|
|
|
/*< public >*/
|
|
qemu_irq irq;
|
|
MemoryRegion mmio;
|
|
CharBackend chr;
|
|
uint8_t rx_fifo[8];
|
|
unsigned int rx_fifo_len;
|
|
uint32_t ie;
|
|
uint32_t ip;
|
|
uint32_t txctrl;
|
|
uint32_t rxctrl;
|
|
uint32_t div;
|
|
};
|
|
|
|
SiFiveUARTState *sifive_uart_create(MemoryRegion *address_space, hwaddr base,
|
|
Chardev *chr, qemu_irq irq);
|
|
|
|
#endif
|