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/*
Nios-sim - one simple NIOSII simulator only for personal interest and fun.
Copyright (C) 2010 chysun2000@gmail.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __UART_CORE_H__
#define __UART_CORE_H__
#include <stdio.h>
#include "public.h"
#include "niosii.h"
#include "io_device.h"
#define UART_IRQ_MASK (1 << 2)
#define UART_CORE_BASE_ADDR (0x80681000)
#define UART_CORE_REG_CNT (8)
/* Mask for registers */
/* copy from /drivers/serial/altuart.c */
#define ALTERA_UART_STATUS_PE_MSK (0x1)
#define ALTERA_UART_STATUS_FE_MSK (0x2)
#define ALTERA_UART_STATUS_BRK_MSK (0x4)
#define ALTERA_UART_STATUS_ROE_MSK (0x8)
#define ALTERA_UART_STATUS_TOE_MSK (0x10)
#define ALTERA_UART_STATUS_TMT_MSK (0x20)
#define ALTERA_UART_STATUS_TRDY_MSK (0x40)
#define ALTERA_UART_STATUS_RRDY_MSK (0x80)
#define ALTERA_UART_STATUS_E_MSK (0x100)
#define ALTERA_UART_STATUS_DCTS_MSK (0x400)
#define ALTERA_UART_STATUS_CTS_MSK (0x800)
#define ALTERA_UART_STATUS_EOP_MSK (0x1000)
#define ALTERA_UART_CONTROL_PE_MSK (0x1)
#define ALTERA_UART_CONTROL_FE_MSK (0x2)
#define ALTERA_UART_CONTROL_BRK_MSK (0x4)
#define ALTERA_UART_CONTROL_ROE_MSK (0x8)
#define ALTERA_UART_CONTROL_TOE_MSK (0x10)
#define ALTERA_UART_CONTROL_TMT_MSK (0x20)
#define ALTERA_UART_CONTROL_TRDY_MSK (0x40)
#define ALTERA_UART_CONTROL_RRDY_MSK (0x80)
#define ALTERA_UART_CONTROL_E_MSK (0x100)
#define ALTERA_UART_CONTROL_TRBK_MSK (0x200)
#define ALTERA_UART_CONTROL_DCTS_MSK (0x400)
#define ALTERA_UART_CONTROL_RTS_MSK (0x800)
#define ALTERA_UART_CONTROL_EOP_MSK (0x1000)
#define ALTERA_UART_EOP_MSK (0xFF)
#define ALTERA_UART_EOP_OFST (0)
#define UART_HAS_NO_DATA_TO_RX (0x00)
#define UART_HAS_DATA_TO_RX (0x01)
#define UART_HAS_DATA_TO_TX (0x01)
#define UART_HAS_NO_DATA_TO_TX (0x00)
struct uart_core_hw {
struct io_reg io_regs[UART_CORE_REG_CNT];
uint32_t rx_status;
uint32_t tx_status;
};
extern struct io_device uart_core;
#endif
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