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|
/*
* $Id$
*/
#include "serial.h"
#include "rtems.h"
typedef unsigned char uchar ; /* Abbreviations */
typedef unsigned short ushort ;
typedef unsigned long ulong ;
int DBGConsole_make_sync = 0;
#define CONSOLE_CHANNELS 1
#define MAX_CONSOLE 4
static int consoles[MAX_CONSOLE];
static int active_consoles = 0;
static struct{
rtems_id sem;
int rx;
int cnt;
char in_line[128];
}cons_input[MAX_CONSOLE];
/* This uses the message out and in buffers as serial emulator.
Pretty stupid eh?
*/
#define uart1 ((volatile unsigned char *)0x1318)
#define uart1_rx ((volatile unsigned int *)0x1310)
#define NUM_UARTS 1
static volatile unsigned int * uart = { uart1 };
static volatile unsigned int * uart_rx = { uart1_rx };
extern void display_msg(void);
/*extern int sprintf();*/
int
console_uartinit(unsigned int BAUDRate)
{
#ifdef CONSOLE_CHANNELS
void cons_isr();
rpmu_attach_inmsg0(cons_isr);
#endif
return(0);
}
/* Introduce a new console channel */
console_new(char * name)
{
#ifdef CONSOLE_CHANNELS
unsigned int x, stat;
x = 0xfe000000 | (name[0] << 16) | (name[1] << 8) | name[2];
do {
stat = *uart;
} while (DBGConsole_make_sync && (stat != 0));
*uart = x;
x = ( name[3] << 24) | ( name[4] << 16) | ( name[5] << 8) | name[6] ;
do {
stat = *uart;
} while (DBGConsole_make_sync && (stat != 0));
*uart = x;
active_consoles += 1;
rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &consoles[active_consoles] );
#endif
}
/***********************************************************************
*** Transmit character to host.
*** put the console ID in upper byte
***
***********************************************************************/
int console_sps_putc(int cc)
{
register unsigned char stat;
int rtid, i;
unsigned int ch;
unsigned int level;
#ifdef CONSOLE_CHANNELS
rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &rtid );
ch = cc & 0xff;
for(i=1; i <= active_consoles; i++){
if( rtid == consoles[i]){
ch |= (i ) << 24 ;
break;
}
}
#else
ch = cc;
#endif
/*
* Pause until there is room in the UART transmit
* buffer.
*/
if (ch == -1)
return ch;
wait:
do {
stat = *uart;
} while (DBGConsole_make_sync && (stat != 0));
rtems_interrupt_disable(level);
if( (*uart != 0) && DBGConsole_make_sync){
rtems_interrupt_enable(level);
goto wait;
}
/*
* Transmit data. (Junk)
*/
*uart = ch;
rtems_interrupt_enable(level);
return cc;
}
/*
* putnum -- print a 32 bit number in hex
*/
int
putnum (num)
unsigned int num;
{
char buffer[9];
int count;
int digit;
for (count = 7 ; count >= 0 ; count--) {
digit = (num >> (count * 4)) & 0xf;
if (digit <= 9)
console_sps_putc( (char) ('0' + digit));
else
console_sps_putc( (char) ('A' - 10 + digit));
}
}
/*
* putmem -- print the specified memory block
*/
void
putmem (addr, num)
char *addr;
unsigned int num;
{
int i = 0;
int j = 0;
int val = 0;
int digit = 0;
console_sps_putc(13);
console_sps_putc(10);
putnum((unsigned int) addr);
console_sps_putc(':');
console_sps_putc(' ');
while(num)
{
val = *addr;
for (j = 0; j < 2; j++)
{
digit = (val & 0xf0) >> 4;
val <<= 4;
if (digit < 10)
{
console_sps_putc(digit + '0');
}
else
{
console_sps_putc(digit - 10 + 'A');
}
}
console_sps_putc(' ');
num--;
addr++;
if (++i == 16)
{
console_sps_putc(13);
console_sps_putc(10);
putnum((unsigned int) addr);
console_sps_putc(':');
console_sps_putc(' ');
i = 0;
}
}
console_sps_putc(13);
console_sps_putc(10);
}
/*
* putcmem -- print the specified pci config memory block
*/
void
putcmem (addr, num)
unsigned char *addr;
unsigned int num;
{
int i = 0;
int j = 0;
unsigned short val = 0;
int digit = 0;
unsigned int *satucmd = (unsigned int *) 0x1298;
unsigned int *soccar = (unsigned int *) 0x12a8;
unsigned int *soccdp = (unsigned int *) 0x12b0;
*satucmd = 4;
console_sps_putc(13);
console_sps_putc(10);
putnum((unsigned int) addr);
console_sps_putc(':');
console_sps_putc(' ');
while(num)
{
*soccar = (unsigned int) addr;
val = *soccdp;
for (j = 0; j < 4; j++)
{
digit = (val & 0xf000) >> 12;
val <<= 4;
if (digit < 10)
{
console_sps_putc(digit + '0');
}
else
{
console_sps_putc(digit - 10 + 'A');
}
}
console_sps_putc(' ');
num -= 2;
addr += 2;
if (++i == 8)
{
console_sps_putc(13);
console_sps_putc(10);
putnum((unsigned int) addr);
console_sps_putc(':');
console_sps_putc(' ');
i = 0;
}
}
console_sps_putc(13);
console_sps_putc(10);
}
/***********************************************************************
*** Read character from host.
***********************************************************************/
#ifdef CONSOLE_CHANNELS
int console_sps_getc()
{
int consinx;
int rtid, i;
unsigned int level, level2;
char ch;
consinx = 0;
rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &rtid );
for(i=1; i <= active_consoles; i++){
if( rtid == consoles[i]){
consinx = i ;
break;
}
}
if( i > active_consoles)
consinx = 0;
if( cons_input[consinx].sem == 0){
rtems_name sname;
sname = rtems_build_name('S','U','X',(char)(consinx + '0'));
rtems_semaphore_create(sname, 0, RTEMS_DEFAULT_ATTRIBUTES, 0, &cons_input[consinx].sem);
cons_input[consinx].rx = 0;
}
while( cons_input[consinx].cnt == cons_input[consinx].rx){
rtems_semaphore_obtain(cons_input[consinx].sem, RTEMS_WAIT, 0);
/* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR);*/
}
rtems_interrupt_disable(level);
i = cons_input[consinx].rx;
ch = cons_input[consinx].in_line[i];
i++;
if( i >= sizeof( cons_input[consinx].in_line))
i = 0;
cons_input[consinx].rx = i;
rtems_interrupt_enable(level);
return ch;
}
void cons_isr()
{
unsigned int i, chin, consinx, st;
chin = *uart_rx;
consinx = chin >> 24;
if( consinx > active_consoles)
goto release;
i = cons_input[consinx].cnt;
cons_input[consinx].in_line[i] = chin & 0xff;
i++;
if( i >= sizeof( cons_input[consinx].in_line))
i = 0;
cons_input[consinx].cnt = i;
st = rtems_semaphore_release( cons_input[consinx].sem);
release:
*uart_rx = 0;
}
#else
volatile int console_foo = 0;
int console_sps_getc()
{
volatile unsigned int stat;
register int ch;
stat = *uart_rx;
while (stat == 0)
{
rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
stat = *uart_rx;
console_foo++;
}
*uart_rx = 0;
ch = stat;
return ch;
}
#endif
/***********************************************************************
*** check character from host.
***********************************************************************/
int console_sps_kbhit()
{
register unsigned short stat;
stat = *uart;
return ( stat != 0);
}
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