uart.h

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/*
 * This software is Copyright (C) 1998 by T.sqware - all rights limited
 * It is provided in to the public domain "as is", can be freely modified
 * as far as this copyight notice is kept unchanged, but does not imply
 * an endorsement by T.sqware of the product in which it is included.
 */

 
#ifndef _BSPUART_H
#define _BSPUART_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
void BSP_uart_init(int uart, unsigned long baud, unsigned long databits, unsigned long parity, unsigned long stopbits, int hwFlow);
void BSP_uart_set_attributes(int uart, unsigned long baud, unsigned long databits, unsigned long parity, unsigned long stopbits);
void BSP_uart_set_baud(int uart, unsigned long baud);
void BSP_uart_intr_ctrl(int uart, int cmd);
void BSP_uart_throttle(int uart);
void BSP_uart_unthrottle(int uart);
int  BSP_uart_polled_status(int uart);
void BSP_uart_polled_write(int uart, int val);
int  BSP_uart_polled_read(int uart);
void BSP_uart_termios_set(int uart, void *ttyp);
int  BSP_uart_termios_read_com1(int uart);
int  BSP_uart_termios_read_com2(int uart);
ssize_t BSP_uart_termios_write_com1(int minor, const char *buf, size_t len);
ssize_t BSP_uart_termios_write_com2(int minor, const char *buf, size_t len);
void BSP_uart_termios_isr_com1(void *);
void BSP_uart_termios_isr_com2(void *);
void BSP_uart_dbgisr_com1(void);
void BSP_uart_dbgisr_com2(void);
extern int BSP_poll_char_via_serial(void);
extern void BSP_output_char_via_serial(char val);
extern int BSPConsolePort;
extern int BSPBaseBaud;

#define BSP_UART_INTR_CTRL_DISABLE  (0)
#define BSP_UART_INTR_CTRL_GDB      (0xaa) 
#define BSP_UART_INTR_CTRL_ENABLE   (0xbb) 
#define BSP_UART_INTR_CTRL_TERMIOS  (0xcc) 

#define BSP_UART_STATUS_ERROR    (-1) 
#define BSP_UART_STATUS_NOCHAR   (0)  
#define BSP_UART_STATUS_CHAR     (1)  
#define BSP_UART_STATUS_BREAK    (2)  

#define BSP_UART_COM1            (0)
#define BSP_UART_COM2            (1)

 
#define COM1_BASE_IO    0x3F8
#define COM2_BASE_IO    0x2F8


#define RBR  (0)    
#define THR  (0)    
#define IER  (1)    

#define IIR  (2)    
#define FCR  (2)    
#define LCR  (3)    
#define MCR  (4)    
#define LSR  (5)    
#define MSR  (6)    
#define SCR  (7)    

#define DLL  (0)    
#define DLM  (1)    
#define AFR  (2)    

#define MODEM_STATUS                0
#define NO_MORE_INTR                1
#define TRANSMITTER_HODING_REGISTER_EMPTY   2
#define RECEIVER_DATA_AVAIL         4
#define RECEIVER_ERROR              6
#define CHARACTER_TIMEOUT_INDICATION        12

#define RECEIVE_ENABLE      0x1
#define TRANSMIT_ENABLE     0x2
#define RECEIVER_LINE_ST_ENABLE 0x4
#define MODEM_ENABLE        0x8
#define INTERRUPT_DISABLE   0x0

#define DR  0x01    
#define OE  0x02    
#define PE  0x04    
#define FE  0x08    
#define BI  0x10    
#define THRE    0x20    
#define TEMT    0x40    
#define ERFIFO  0x80    

#define DTR 0x01    
#define RTS     0x02    
#define OUT_1   0x04    
#define OUT_2   0x08    
#define LB  0x10    

#define CHR_5_BITS 0
#define CHR_6_BITS 1
#define CHR_7_BITS 2
#define CHR_8_BITS 3
 
#define WL  0x03    
#define STB 0x04    
#define PEN 0x08    
#define EPS 0x10    
#define SP  0x20    
#define BCB 0x40    
#define DLAB    0x80    

#define DCTS    0x01    
#define DDSR    0x02    
#define TERI    0x04    
#define DDCD    0x08    
#define CTS     0x10    
#define DSR 0x20    
#define RI      0x40    
#define DCD 0x80    

 
#define FIFO_CTRL   0x01    
#define FIFO_EN     0x01    
#define XMIT_RESET  0x02    
#define RCV_RESET   0x04    
#define FCR3        0x08    
 
#define RECEIVE_FIFO_TRIGGER1   0x0  
#define RECEIVE_FIFO_TRIGGER4   0x40 
#define RECEIVE_FIFO_TRIGGER8   0x80 
#define RECEIVE_FIFO_TRIGGER12  0xc0 
#define TRIG_LEVEL          0xc0 

 
#ifdef __cplusplus
}
#endif
 
#endif /* _BSPUART_H */