2018-10-30 16:23:56 +01:00
|
|
|
/*
|
|
|
|
|
* nRF51 SoC UART emulation
|
|
|
|
|
*
|
|
|
|
|
* Copyright (c) 2018 Julia Suvorova <jusual@mail.ru>
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License version 2 or
|
|
|
|
|
* (at your option) any later version.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef NRF51_UART_H
|
|
|
|
|
#define NRF51_UART_H
|
|
|
|
|
|
|
|
|
|
#include "hw/sysbus.h"
|
|
|
|
|
#include "chardev/char-fe.h"
|
|
|
|
|
#include "hw/registerfields.h"
|
2020-09-03 22:43:22 +02:00
|
|
|
#include "qom/object.h"
|
2018-10-30 16:23:56 +01:00
|
|
|
|
|
|
|
|
#define UART_FIFO_LENGTH 6
|
|
|
|
|
#define UART_SIZE 0x1000
|
|
|
|
|
|
|
|
|
|
#define TYPE_NRF51_UART "nrf51_soc.uart"
|
2020-09-16 20:25:19 +02:00
|
|
|
OBJECT_DECLARE_SIMPLE_TYPE(NRF51UARTState, NRF51_UART)
|
2018-10-30 16:23:56 +01:00
|
|
|
|
|
|
|
|
REG32(UART_STARTRX, 0x000)
|
|
|
|
|
REG32(UART_STOPRX, 0x004)
|
|
|
|
|
REG32(UART_STARTTX, 0x008)
|
|
|
|
|
REG32(UART_STOPTX, 0x00C)
|
|
|
|
|
REG32(UART_SUSPEND, 0x01C)
|
|
|
|
|
|
|
|
|
|
REG32(UART_CTS, 0x100)
|
|
|
|
|
REG32(UART_NCTS, 0x104)
|
|
|
|
|
REG32(UART_RXDRDY, 0x108)
|
|
|
|
|
REG32(UART_TXDRDY, 0x11C)
|
|
|
|
|
REG32(UART_ERROR, 0x124)
|
|
|
|
|
REG32(UART_RXTO, 0x144)
|
|
|
|
|
|
|
|
|
|
REG32(UART_INTEN, 0x300)
|
|
|
|
|
FIELD(UART_INTEN, CTS, 0, 1)
|
|
|
|
|
FIELD(UART_INTEN, NCTS, 1, 1)
|
|
|
|
|
FIELD(UART_INTEN, RXDRDY, 2, 1)
|
|
|
|
|
FIELD(UART_INTEN, TXDRDY, 7, 1)
|
|
|
|
|
FIELD(UART_INTEN, ERROR, 9, 1)
|
|
|
|
|
FIELD(UART_INTEN, RXTO, 17, 1)
|
|
|
|
|
REG32(UART_INTENSET, 0x304)
|
|
|
|
|
REG32(UART_INTENCLR, 0x308)
|
|
|
|
|
REG32(UART_ERRORSRC, 0x480)
|
|
|
|
|
REG32(UART_ENABLE, 0x500)
|
|
|
|
|
REG32(UART_PSELRTS, 0x508)
|
|
|
|
|
REG32(UART_PSELTXD, 0x50C)
|
|
|
|
|
REG32(UART_PSELCTS, 0x510)
|
|
|
|
|
REG32(UART_PSELRXD, 0x514)
|
|
|
|
|
REG32(UART_RXD, 0x518)
|
|
|
|
|
REG32(UART_TXD, 0x51C)
|
|
|
|
|
REG32(UART_BAUDRATE, 0x524)
|
|
|
|
|
REG32(UART_CONFIG, 0x56C)
|
|
|
|
|
|
2020-09-03 22:43:22 +02:00
|
|
|
struct NRF51UARTState {
|
2018-10-30 16:23:56 +01:00
|
|
|
SysBusDevice parent_obj;
|
|
|
|
|
|
|
|
|
|
MemoryRegion iomem;
|
|
|
|
|
CharBackend chr;
|
|
|
|
|
qemu_irq irq;
|
|
|
|
|
guint watch_tag;
|
|
|
|
|
|
|
|
|
|
uint8_t rx_fifo[UART_FIFO_LENGTH];
|
|
|
|
|
unsigned int rx_fifo_pos;
|
|
|
|
|
unsigned int rx_fifo_len;
|
|
|
|
|
|
|
|
|
|
uint32_t reg[0x56C];
|
|
|
|
|
|
|
|
|
|
bool rx_started;
|
|
|
|
|
bool tx_started;
|
|
|
|
|
bool pending_tx_byte;
|
|
|
|
|
bool enabled;
|
2020-09-03 22:43:22 +02:00
|
|
|
};
|
2018-10-30 16:23:56 +01:00
|
|
|
|
|
|
|
|
#endif
|
