| 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; |
| } |
| |
| /** @} |
| */ |