0,0 → 1,186 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup ia64 |
* @{ |
*/ |
/** @file |
*/ |
|
#include <arch/ski/ski.h> |
#include <console/console.h> |
#include <console/chardev.h> |
#include <sysinfo/sysinfo.h> |
#include <arch/types.h> |
#include <proc/thread.h> |
#include <synch/spinlock.h> |
#include <arch/asm.h> |
#include <arch/drivers/kbd.h> |
#include <arch.h> |
|
static chardev_t *skiout; |
|
static chardev_t ski_stdout; |
|
static bool kbd_disabled; |
|
/** Display character on debug console |
* |
* Use SSC (Simulator System Call) to |
* display character on debug console. |
* |
* @param d Character device. |
* @param ch Character to be printed. |
*/ |
static void ski_putchar(chardev_t *d, const char ch, bool silent) |
{ |
if (!silent) { |
asm volatile ( |
"mov r15 = %0\n" |
"mov r32 = %1\n" /* r32 is in0 */ |
"break 0x80000\n" /* modifies r8 */ |
: |
: "i" (SKI_PUTCHAR), "r" (ch) |
: "r15", "in0", "r8" |
); |
|
if (ch == '\n') |
ski_putchar(d, '\r', false); |
} |
} |
|
static chardev_operations_t ski_ops = { |
.write = ski_putchar |
}; |
|
/** Ask debug console if a key was pressed. |
* |
* Use SSC (Simulator System Call) to |
* get character from debug console. |
* |
* This call is non-blocking. |
* |
* @return ASCII code of pressed key or 0 if no key pressed. |
*/ |
static int32_t ski_getchar(void) |
{ |
uint64_t ch; |
|
asm volatile ( |
"mov r15 = %1\n" |
"break 0x80000;;\n" /* modifies r8 */ |
"mov %0 = r8;;\n" |
|
: "=r" (ch) |
: "i" (SKI_GETCHAR) |
: "r15", "r8" |
); |
|
return (int32_t) ch; |
} |
|
/** Ask keyboard if a key was pressed. */ |
static void poll_keyboard(void) |
{ |
char ch; |
ipl_t ipl; |
|
ipl = interrupts_disable(); |
|
if (kbd_disabled) { |
interrupts_restore(ipl); |
return; |
} |
|
ch = ski_getchar(); |
if(ch == '\r') |
ch = '\n'; |
if (ch && skiout) { |
chardev_push_character(skiout, ch); |
interrupts_restore(ipl); |
return; |
} |
|
interrupts_restore(ipl); |
} |
|
#define POLL_INTERVAL 10000 /* 10 ms */ |
|
/** Kernel thread for polling keyboard. */ |
static void kkbdpoll(void *arg) |
{ |
while (1) { |
if (!silent) { |
poll_keyboard(); |
} |
thread_usleep(POLL_INTERVAL); |
} |
} |
|
/** Initialize debug console |
* |
* Issue SSC (Simulator System Call) to |
* to open debug console. |
*/ |
void ski_console_init(chardev_t *devout) |
{ |
asm volatile ( |
"mov r15 = %0\n" |
"break 0x80000\n" |
: |
: "i" (SKI_INIT_CONSOLE) |
: "r15", "r8" |
); |
|
skiout = devout; |
chardev_initialize("ski_stdout", &ski_stdout, &ski_ops); |
stdout = &ski_stdout; |
|
thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
if (!t) |
panic("Cannot create kkbdpoll."); |
thread_ready(t); |
|
sysinfo_set_item_val("kbd", NULL, true); |
sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
|
sysinfo_set_item_val("fb", NULL, false); |
} |
|
void ski_kbd_grab(void) |
{ |
kbd_disabled = true; |
} |
|
void ski_kbd_release(void) |
{ |
kbd_disabled = false; |
} |
|
/** @} |
*/ |