rt-thread-official/bsp/raspberry-pi/raspi4-64/driver/drv_uart.h

84 lines
3.1 KiB
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-04-16 bigmagic first version
*/
#ifndef DRV_UART_H__
#define DRV_UART_H__
// register's bit
#define PL011_FR_RI (1 << 8)
#define PL011_FR_TXFE (1 << 7)
#define PL011_FR_RXFF (1 << 6)
#define PL011_FR_TXFF (1 << 5)
#define PL011_FR_RXFE (1 << 4)
#define PL011_FR_BUSY (1 << 3)
#define PL011_FR_DCD (1 << 2)
#define PL011_FR_DSR (1 << 1)
#define PL011_FR_CTS (1 << 0)
#define PL011_LCRH_SPS (1 << 7)
#define PL011_LCRH_WLEN_8 (3 << 5)
#define PL011_LCRH_WLEN_7 (2 << 5)
#define PL011_LCRH_WLEN_6 (1 << 5)
#define PL011_LCRH_WLEN_5 (0 << 5)
#define PL011_LCRH_FEN (1 << 4)
#define PL011_LCRH_STP2 (1 << 3)
#define PL011_LCRH_EPS (1 << 2)
#define PL011_LCRH_PEN (1 << 1)
#define PL011_LCRH_BRK (1 << 0)
#define PL011_CR_CTSEN (1 << 15)
#define PL011_CR_RTSEN (1 << 14)
#define PL011_CR_RTS (1 << 11)
#define PL011_CR_DTR (1 << 10)
#define PL011_CR_RXE (1 << 9)
#define PL011_CR_TXE (1 << 8)
#define PL011_CR_LBE (1 << 7)
#define PL011_CR_SIRLP (1 << 2)
#define PL011_CR_SIREN (1 << 1)
#define PL011_CR_UARTEN (1 << 0)
#define PL011_IMSC_TXIM (1 << 5)
#define PL011_IMSC_RXIM (1 << 4)
#define PL011_INTERRUPT_OVERRUN_ERROR (1 << 10)
#define PL011_INTERRUPT_BREAK_ERROR (1 << 9)
#define PL011_INTERRUPT_PARITY_ERROR (1 << 8)
#define PL011_INTERRUPT_FRAMING_ERROR (1 << 7)
#define PL011_INTERRUPT_RECEIVE_TIMEOUT (1 << 6)
#define PL011_INTERRUPT_TRANSMIT (1 << 5)
#define PL011_INTERRUPT_RECEIVE (1 << 4)
#define PL011_INTERRUPT_nUARTCTS (1 << 1)
#define PL011_REG_DR(BASE) HWREG32(BASE + 0x00)
#define PL011_REG_RSRECR(BASE) HWREG32(BASE + 0x04)
#define PL011_REG_RESERVED0(BASE) HWREG32(BASE + 0x08)
#define PL011_REG_FR(BASE) HWREG32(BASE + 0x18)
#define PL011_REG_RESERVED1(BASE) HWREG32(BASE + 0x1C)
#define PL011_REG_ILPR(BASE) HWREG32(BASE + 0x20)
#define PL011_REG_IBRD(BASE) HWREG32(BASE + 0x24)
#define PL011_REG_FBRD(BASE) HWREG32(BASE + 0x28)
#define PL011_REG_LCRH(BASE) HWREG32(BASE + 0x2C)
#define PL011_REG_CR(BASE) HWREG32(BASE + 0x30)
#define PL011_REG_IFLS(BASE) HWREG32(BASE + 0x34)
#define PL011_REG_IMSC(BASE) HWREG32(BASE + 0x38)
#define PL011_REG_RIS(BASE) HWREG32(BASE + 0x3C)
#define PL011_REG_MIS(BASE) HWREG32(BASE + 0x40)
#define PL011_REG_ICR(BASE) HWREG32(BASE + 0x44)
#define PL011_REG_DMACR(BASE) HWREG32(BASE + 0x48)
#define PL011_REG_RESERVED2(BASE) HWREG32(BASE + 0x4C)
#define PL011_REG_ITCR(BASE) HWREG32(BASE + 0x80)
#define PL011_REG_ITIP(BASE) HWREG32(BASE + 0x84)
#define PL011_REG_ITOP(BASE) HWREG32(BASE + 0x88)
#define PL011_REG_TDR(BASE) HWREG32(BASE + 0x8C)
int rt_hw_uart_init(void);
#endif /* DRV_UART_H__ */