int kputs(const char *str)
{
int pos, i, len = strlen(str);
if (early_print != NO_EARLY_PRINT)
spinlock_irqsave_lock(&olock);
for(i=0; i<len; i++) {
pos = atomic_int32_inc(&kmsg_counter);
kmessages[pos % KMSG_SIZE] = str[i];
#ifdef CONFIG_VGA
if (early_print & VGA_EARLY_PRINT)
vga_putchar(str[i]);
#endif
#ifdef CONFIG_UART
if (early_print & UART_EARLY_PRINT)
uart_putchar(str[i]);
#endif
}
if (early_print != NO_EARLY_PRINT)
spinlock_irqsave_unlock(&olock);
return len;
}
short console_getline(console_color_t color, char *str, unsigned short *len) {
unsigned short i=0;
char c;
unsigned char c233 = vga_color233(vga_console_color(color));
while (i < *len-1) {
if ((sysio[0] & 0x2) == 0x2)
c = keyboard_getchar();
else
c = serial_getchar(0);
if (c >= ' ' && c <= '~') {
if ((sysio[0] & 0x2) == 0x2)
vga_putchar(c233,c);
else
serial_putchar(0, c);
str[i++] = c;
}
if (c == '\r' || c == '\n') {
str[i] = '\0';
return i;
}
if (c == 0x03) {
str[0] = '\0';
return -1;
}
if ((c == 0x7f || c == 0x08) && i > 0) {
if ((sysio[0] & 0x2) == 0x2)
vga_putchar(c233, c);
else
serial_putchar(0, c);
i--;
}
}
str[i+1] = '\0';
return i;
}
int kputchar(int c)
{
int pos;
if (early_print != NO_EARLY_PRINT)
spinlock_irqsave_lock(&olock);
pos = atomic_int32_inc(&kmsg_counter);
kmessages[pos % KMSG_SIZE] = (unsigned char) c;
#ifdef CONFIG_VGA
if (early_print & VGA_EARLY_PRINT)
vga_putchar(c);
#endif
#ifdef CONFIG_UART
if (early_print & UART_EARLY_PRINT)
uart_putchar(c);
#endif
if (early_print != NO_EARLY_PRINT)
spinlock_irqsave_unlock(&olock);
return 1;
}
void va_snprintf(char *b, int l, char *fmt, va_list pvar, int s_flag)
{
int n, i;
unsigned u;
char *t, d[10], uint_str[10];
/* bail if args == null */
if (!fmt || (!b && s_flag) || (l < 1))
return;
while (l && *fmt)
{
if (*fmt == '\n')
{
vga_putchar (*fmt, 15);
} else if (*fmt == '%')
{
fmt++;
if (!(--l))
break;
switch (*fmt)
{
case 's': /* string */
t = va_arg (pvar, char *);
while (l && *t)
{
if (s_flag)
*b++ = *t++;
else
vga_putchar(*t++, 15);
l--;
}
break;
case 'c': /* single character */
if (s_flag)
*b++ = va_arg (pvar, char);
else
vga_putchar (va_arg (pvar, char), 15);
l--;
break;
case 'x': /* 8 digit, unsigned 32bit hex integer */
if (l < 8)
{
l = 0;
break;
}
u = va_arg (pvar, unsigned int);
for(i = 7; i >= 0; i--)
{
uint_str[i] = hexmap[u & 0x0F];
u >>= 4;
}
for (i = 0; i <= 7; i++)
{
if (s_flag)
*b++ = uint_str[i];
else
vga_putchar(uint_str[i], 15);
}
l -= 8;
break;
case 'd': /* signed integer */
n = va_arg (pvar, int);
if (n < 0)
{
u = -n;
if (s_flag)
*b++ = '-';
else
vga_putchar ('-', 15);
if(!(--l))
break;
} else
{
u = n;
}
goto u2;
case 'u': /* unsigned integer */
u = va_arg (pvar, unsigned int);
u2:
i = 9;
do {
d[i] = (u % 10) + '0';
u /= 10;
i--;
} while (u && i >= 0);
while (++i < 10)
{
if (s_flag)
*b++ = d[i];
else
vga_putchar (d[i], 15);
if(!(--l))
break;
}
break;
case 'X': /* 2 digit, unsigned 8bit hex int */
if (l < 2)
{
l = 0;
break;
}
n = va_arg (pvar, int);
if (s_flag)
{
*b++ = hexmap[(n & 0xF0) >> 4];
*b++ = hexmap[n & 0x0F];
} else
{
vga_putchar (hexmap[(n & 0xF0) >> 4], 15);
vga_putchar (hexmap[n & 0x0F], 15);
}
l -= 2;
break;
default:
if (s_flag)
*b++ = *fmt;
else
vga_putchar (*fmt, 15);
}