mirror of
https://github.com/CTCaer/hekate
synced 2024-11-16 08:59:26 +00:00
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2018 naehrwert
|
|
*
|
|
* 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, 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 _UART_H_
|
|
#define _UART_H_
|
|
|
|
#include "../utils/types.h"
|
|
|
|
#define UART_A 0
|
|
#define UART_B 1
|
|
#define UART_C 2
|
|
//TODO: define clock inits for those.
|
|
/*#define UART_D 3
|
|
#define UART_E 4*/
|
|
|
|
#define BAUD_115200 115200
|
|
|
|
#define UART_TX_IDLE 0x1
|
|
#define UART_RX_IDLE 0x2
|
|
|
|
#define UART_LCR_DLAB 0x80
|
|
#define UART_LCR_WORD_LENGTH_8 0x3
|
|
#define UART_LSR_RDR 0x1
|
|
#define UART_LSR_THRE 0x20
|
|
#define UART_LSR_TMTY 0x40
|
|
#define UART_IIR_FCR_TX_CLR 0x4
|
|
#define UART_IIR_FCR_RX_CLR 0x2
|
|
#define UART_IIR_FCR_EN_FIFO 0x1
|
|
|
|
typedef struct _uart_t
|
|
{
|
|
/* 0x00 */ vu32 UART_THR_DLAB;
|
|
/* 0x04 */ vu32 UART_IER_DLAB;
|
|
/* 0x08 */ vu32 UART_IIR_FCR;
|
|
/* 0x0C */ vu32 UART_LCR;
|
|
/* 0x10 */ vu32 UART_MCR;
|
|
/* 0x14 */ vu32 UART_LSR;
|
|
/* 0x18 */ vu32 UART_MSR;
|
|
/* 0x1C */ vu32 UART_SPR;
|
|
/* 0x20 */ vu32 UART_IRDA_CSR;
|
|
/* 0x24 */ vu32 UART_RX_FIFO_CFG;
|
|
/* 0x28 */ vu32 UART_MIE;
|
|
/* 0x2C */ vu32 UART_VENDOR_STATUS;
|
|
/* 0x30 */ u8 _pad_30[0xC];
|
|
/* 0x3C */ vu32 UART_ASR;
|
|
} uart_t;
|
|
|
|
void uart_init(u32 idx, u32 baud);
|
|
void uart_wait_idle(u32 idx, u32 which);
|
|
void uart_send(u32 idx, u8 *buf, u32 len);
|
|
void uart_recv(u32 idx, u8 *buf, u32 len);
|
|
|
|
#endif
|