33,6 → 33,7 |
#include <arch/byteorder.h> |
#include <arch/mm/frame.h> |
#include <mm/frame.h> |
#include <interrupt.h> |
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/* This is a good joke, SGI HAS different types than NT bioses... */ |
/* Here is the SGI type */ |
97,26 → 98,9 |
static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
static arc_func_vector_t *arc_entry; |
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static void _arc_putchar(char ch); |
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/** Initialize ARC structure |
* |
* @return 0 - ARC OK, -1 - ARC does not exist |
*/ |
int arc_init(void) |
{ |
if (sbp->signature != ARC_MAGIC) { |
sbp = NULL; |
return -1; |
} |
arc_entry = sbp->firmwarevector; |
static void arc_putchar(char ch); |
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arc_putchar('A'); |
arc_putchar('R'); |
arc_putchar('C'); |
arc_putchar('\n'); |
} |
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/** Return true if ARC is available */ |
int arc_enabled(void) |
{ |
129,8 → 113,8 |
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printf("%s: ",ctypes[c->type]); |
for (i=0;i < c->identifier_len;i++) |
putchar(c->identifier[i]); |
putchar('\n'); |
arc_putchar(c->identifier[i]); |
arc_putchar('\n'); |
} |
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void arc_print_devices(void) |
174,7 → 158,7 |
} |
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/** Print charactor to console */ |
void arc_putchar(char ch) |
static void arc_putchar(char ch) |
{ |
__u32 cnt; |
ipl_t ipl; |
186,25 → 170,89 |
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} |
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/** Initialize ARC structure |
* |
* @return 0 - ARC OK, -1 - ARC does not exist |
*/ |
int arc_init(void) |
{ |
if (sbp->signature != ARC_MAGIC) { |
sbp = NULL; |
return -1; |
} |
arc_entry = sbp->firmwarevector; |
|
arc_putchar('A'); |
arc_putchar('R'); |
arc_putchar('C'); |
arc_putchar('\n'); |
} |
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static int kbd_polling_enabled; |
static chardev_t console; |
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/** Try to get character, return character or -1 if not available */ |
int arc_getchar(void) |
static void arc_keyboard_poll(void) |
{ |
char ch; |
__u32 count; |
long result; |
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if (! kbd_polling_enabled) |
return; |
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if (arc_entry->getreadstatus(0)) |
return -1; |
return; |
result = arc_entry->read(0, &ch, 1, &count); |
if (result || count!=1) { |
cpu_halt(); |
return -1; |
return; |
} |
if (ch == '\r') |
return '\n'; |
return ch; |
ch = '\n'; |
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chardev_push_character(&console, ch); |
} |
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static void arc_write(chardev_t *dev, const char ch) |
{ |
arc_putchar(ch); |
} |
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static void arc_enable(chardev_t *dev) |
{ |
kbd_polling_enabled = 1; |
} |
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static void arc_disable(chardev_t *dev) |
{ |
kbd_polling_enabled = 0; |
} |
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static chardev_operations_t arc_ops = { |
.resume = arc_enable, |
.suspend = arc_disable, |
.write = arc_write |
}; |
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iroutine old_timer; |
/** Do polling on timer interrupt */ |
static void timer_replace(int n, void *stack) |
{ |
arc_keyboard_poll(); |
old_timer(n, stack); |
arc_keyboard_poll(); |
} |
|
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chardev_t * arc_console(void) |
{ |
kbd_polling_enabled = 1; |
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chardev_initialize("arc_console", &console, &arc_ops); |
old_timer = exc_register(TIMER_IRQ, "arc_kb_poll", timer_replace); |
return &console; |
} |
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/* Initialize frame zones from ARC firmware. |
* In the future we may use even the FirmwareTemporary regions, |
* currently we use the FreeMemory (what about the LoadedProgram?) |