diff options
Diffstat (limited to 'c/src/lib/libbsp/a29k/portsw/console/serial.c')
| -rw-r--r-- | c/src/lib/libbsp/a29k/portsw/console/serial.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/c/src/lib/libbsp/a29k/portsw/console/serial.c b/c/src/lib/libbsp/a29k/portsw/console/serial.c deleted file mode 100644 index 4b07dd19ae..0000000000 --- a/c/src/lib/libbsp/a29k/portsw/console/serial.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * $Id$ - */ - -#include "serial.h" -#include "rtems.h" - - -typedef unsigned char uchar ; /* Abbreviations */ -typedef unsigned short ushort ; -typedef unsigned long ulong ; - -#if 0 -#define BAUDRate 9600 /* Fixed Uart baud rate */ -#endif - -#define SEND_WAIT 0x0100 /* Waiting to send character */ - -#define TDR(i) - - -/******************************************************************** - *** 16552 specific DUART definitions. - *******************************************************************/ - - -typedef struct uart_16552 DUART ; - -#ifndef notdef -struct uart_16552 -{ - short u_short[8*2] ; -} ; -#define u_reg(n) u_short[2*(n)] - -#else - -struct uart_16552 -{ - int u_int[8] ; -} ; - -#define u_reg(n) u_int[(n)] -#endif - -#define u_tdr u_reg(0) /* Transmit Data Register (write) */ -#define u_rdr u_reg(0) /* Receive Data Register (read) */ -#define u_dlr0 u_reg(0) /* Divisor Latch Register (lsb) */ - -#define u_ier u_reg(1) /* Interrupt Enable Register */ -#define u_dlr1 u_reg(1) /* Divisor Latch Register (msb) */ - -#define u_iir u_reg(2) /* Interrupt ID Register (read) */ -#define u_fcr u_reg(2) /* FIFO Control Register (write) */ -#define u_afr u_reg(2) /* Alternate Funct Reg (read/write) */ - -#define u_lcr u_reg(3) /* Line Control Register */ - -#define u_mcr u_reg(4) /* Modem Control Register */ - -#define u_lsr u_reg(5) /* Line Status Register */ - -#define u_msr u_reg(6) /* Modem Status Register */ - -#define u_spr u_reg(7) /* Scratch Pad Register */ - -#define uart1 ((volatile DUART *)0x90000380) -#define uart2 ((volatile DUART *)0x90000300) - -#define NUM_UARTS 2 -static volatile DUART * duart[NUM_UARTS] = { uart1, uart2 }; - - -extern void display_msg(void); -/*extern int sprintf();*/ - - -#define board_rev_reg ((volatile short *)0x90000080) - -static unsigned int shift_val = 0; - -/*********************************************************************** - *** 16552 DUART initialization routine. - ***********************************************************************/ - -int -console_duartinit(unsigned int uart_num, unsigned int BAUDRate) -{ - register uchar tmp; - unsigned int board_rev = *board_rev_reg & 0xff; - - switch( BAUDRate ) - { - case 1200: - case 2400: - case 9600: - case 19200: - case 38400: - case 57600: - break; - default: - /* unknown baud rate */ - return FALSE; - } - - /* the board rev register should never be 0xff. - if it equals 0xff, assume that we're on old hardware - that needs all values shifted by 8. */ - if ( board_rev == 0xff ) - shift_val = 8; - else - shift_val = 0; - - if ( uart_num >= NUM_UARTS ) - return -1; - - duart[uart_num]->u_lcr = 0x80<<shift_val ; /* Set DLAB bit to 1 */ - - duart[uart_num]->u_dlr0 = ((115200 / BAUDRate) >> 0)<<shift_val ; /* Set baud */ - duart[uart_num]->u_dlr1 = ((115200 / BAUDRate) >> 8)<<shift_val ; /* rate */ - - duart[uart_num]->u_lcr = 0x03<<shift_val ; /* 8 bits, no parity, 1 stop */ - - duart[uart_num]->u_mcr = 0x0b<<shift_val ; /* Assert RTS, DTR & OUT2 */ - - duart[uart_num]->u_fcr = 0x00<<shift_val ; /* Clear 16552 FIFOs */ - /* Is the following write of 0x01 needed? */ - /* Let's try it without... */ - duart[uart_num]->u_fcr = 0xc7<<shift_val ; /* Enable 16552 FIFOs */ - - duart[uart_num]->u_ier = 0x07<<shift_val ; /* Enable transmit/receive ints */ - - tmp = duart[uart_num]->u_lsr ; /* Re-arm interrupts */ - tmp = duart[uart_num]->u_rdr ; - tmp = duart[uart_num]->u_msr ; - - return(0); -} - - /*------------ end of duartinit function ----------------*/ - - - /*********************************************************************** - *** Transmit character to host. - ***********************************************************************/ - -int console_sps_putc(unsigned int uart_num, int ch) -{ - register unsigned short stat; - - if ( uart_num >= NUM_UARTS ) - return -1; - - /* - * Pause until there is room in the UART transmit - * buffer. - */ - - do { - stat = duart[uart_num]->u_lsr>>shift_val; - } while (!(stat & 0x40)); - - /* - * Transmit data. (Junk) - */ - - TDR(ch) - - duart[uart_num]->u_tdr = ch<<shift_val ; - - return ch; - -} - - - /*********************************************************************** - *** Read character from host. - ***********************************************************************/ - -int console_sps_getc(unsigned int uart_num) -{ - register unsigned short stat; - register int ch; - - if ( uart_num >= NUM_UARTS ) - return -1; - - stat = duart[uart_num]->u_lsr>>shift_val; - while (!(stat & 0x01)) - { - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); - stat = duart[uart_num]->u_lsr>>shift_val; - } - - ch = duart[uart_num]->u_rdr>>shift_val; - - return ch; -} - - /*********************************************************************** - *** check character from host. - ***********************************************************************/ - -int console_sps_kbhit(unsigned int uart_num) -{ - register unsigned short stat; - - if ( uart_num >= NUM_UARTS ) - return -1; - - stat = duart[uart_num]->u_lsr>>shift_val; - return ((stat & 0x01)); -} - - - - |