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Ignore whitespace Rev 4340 → Rev 4341

/branches/dynload/kernel/genarch/src/drivers/ega/ega.c
62,54 → 62,8
static uint8_t *backbuf;
static ioport_t ega_base;
 
static void ega_putchar(chardev_t *d, const char ch);
 
chardev_t ega_console;
static chardev_operations_t ega_ops = {
.write = ega_putchar
};
 
static void ega_move_cursor(void);
 
void ega_init(ioport_t base, uintptr_t videoram_phys)
{
/* Initialize the software structure. */
ega_base = base;
 
backbuf = (uint8_t *) malloc(SCREEN * 2, 0);
if (!backbuf)
panic("Unable to allocate backbuffer.");
videoram = (uint8_t *) hw_map(videoram_phys, SCREEN * 2);
/* Clear the screen and set the cursor position. */
memsetw(videoram, SCREEN, 0x0720);
memsetw(backbuf, SCREEN, 0x0720);
ega_move_cursor();
 
chardev_initialize("ega_out", &ega_console, &ega_ops);
stdout = &ega_console;
ega_parea.pbase = videoram_phys;
ega_parea.vbase = (uintptr_t) videoram;
ega_parea.frames = 1;
ega_parea.cacheable = false;
ddi_parea_register(&ega_parea);
 
sysinfo_set_item_val("fb", NULL, true);
sysinfo_set_item_val("fb.kind", NULL, 2);
sysinfo_set_item_val("fb.width", NULL, ROW);
sysinfo_set_item_val("fb.height", NULL, ROWS);
sysinfo_set_item_val("fb.blinking", NULL, true);
sysinfo_set_item_val("fb.address.physical", NULL, videoram_phys);
}
 
static void ega_display_char(char ch)
{
videoram[ega_cursor * 2] = ch;
backbuf[ega_cursor * 2] = ch;
}
 
/*
* This function takes care of scrolling.
*/
127,13 → 81,29
ega_cursor = ega_cursor - ROW;
}
 
void ega_putchar(chardev_t *d __attribute__((unused)), const char ch)
static void ega_move_cursor(void)
{
outb(ega_base + EGA_INDEX_REG, 0xe);
outb(ega_base + EGA_DATA_REG, (uint8_t) ((ega_cursor >> 8) & 0xff));
outb(ega_base + EGA_INDEX_REG, 0xf);
outb(ega_base + EGA_DATA_REG, (uint8_t) (ega_cursor & 0xff));
}
 
static void ega_display_char(char ch, bool silent)
{
backbuf[ega_cursor * 2] = ch;
if (!silent)
videoram[ega_cursor * 2] = ch;
}
 
static void ega_putchar(chardev_t *d __attribute__((unused)), const char ch, bool silent)
{
ipl_t ipl;
 
ipl = interrupts_disable();
spinlock_lock(&egalock);
 
switch (ch) {
case '\n':
ega_cursor = (ega_cursor + ROW) - ega_cursor % ROW;
146,23 → 116,54
ega_cursor--;
break;
default:
ega_display_char(ch);
ega_display_char(ch, silent);
ega_cursor++;
break;
}
ega_check_cursor();
ega_move_cursor();
 
if (!silent)
ega_move_cursor();
spinlock_unlock(&egalock);
interrupts_restore(ipl);
}
 
void ega_move_cursor(void)
static chardev_operations_t ega_ops = {
.write = ega_putchar
};
 
void ega_init(ioport_t base, uintptr_t videoram_phys)
{
outb(ega_base + EGA_INDEX_REG, 0xe);
outb(ega_base + EGA_DATA_REG, (uint8_t) ((ega_cursor >> 8) & 0xff));
outb(ega_base + EGA_INDEX_REG, 0xf);
outb(ega_base + EGA_DATA_REG, (uint8_t) (ega_cursor & 0xff));
/* Initialize the software structure. */
ega_base = base;
backbuf = (uint8_t *) malloc(SCREEN * 2, 0);
if (!backbuf)
panic("Unable to allocate backbuffer.");
videoram = (uint8_t *) hw_map(videoram_phys, SCREEN * 2);
/* Clear the screen and set the cursor position. */
memsetw(videoram, SCREEN, 0x0720);
memsetw(backbuf, SCREEN, 0x0720);
ega_move_cursor();
chardev_initialize("ega_out", &ega_console, &ega_ops);
stdout = &ega_console;
ega_parea.pbase = videoram_phys;
ega_parea.vbase = (uintptr_t) videoram;
ega_parea.frames = 1;
ega_parea.cacheable = false;
ddi_parea_register(&ega_parea);
sysinfo_set_item_val("fb", NULL, true);
sysinfo_set_item_val("fb.kind", NULL, 2);
sysinfo_set_item_val("fb.width", NULL, ROW);
sysinfo_set_item_val("fb.height", NULL, ROWS);
sysinfo_set_item_val("fb.blinking", NULL, true);
sysinfo_set_item_val("fb.address.physical", NULL, videoram_phys);
}
 
void ega_redraw(void)