| 0,0 → 1,246 |
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| /* |
| * 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/drivers/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 <string.h> |
| #include <arch.h> |
| |
| enum { |
| /** Interval between polling in microseconds */ |
| POLL_INTERVAL = 10000, /* 0.01 s */ |
| |
| /** Max. number of characters to pull out at a time */ |
| POLL_LIMIT = 30, |
| |
| SKI_INIT_CONSOLE = 20, |
| SKI_GETCHAR = 21, |
| SKI_PUTCHAR = 31 |
| }; |
| |
| static void ski_putchar(outdev_t *, const wchar_t, bool); |
| |
| static outdev_operations_t skiout_ops = { |
| .write = ski_putchar |
| }; |
| |
| static outdev_t skiout; /**< Ski output device. */ |
| static bool initialized = false; |
| static bool kbd_disabled = false; |
| |
| /** Initialize debug console |
| * |
| * Issue SSC (Simulator System Call) to |
| * to open debug console. |
| * |
| */ |
| static void ski_init(void) |
| { |
| if (initialized) |
| return; |
| |
| asm volatile ( |
| "mov r15 = %0\n" |
| "break 0x80000\n" |
| : |
| : "i" (SKI_INIT_CONSOLE) |
| : "r15", "r8" |
| ); |
| |
| initialized = true; |
| } |
| |
| static void ski_do_putchar(const wchar_t ch) |
| { |
| asm volatile ( |
| "mov r15 = %[cmd]\n" |
| "mov r32 = %[ch]\n" /* r32 is in0 */ |
| "break 0x80000\n" /* modifies r8 */ |
| : |
| : [cmd] "i" (SKI_PUTCHAR), [ch] "r" (ch) |
| : "r15", "in0", "r8" |
| ); |
| } |
| |
| /** Display character on debug console |
| * |
| * Use SSC (Simulator System Call) to |
| * display character on debug console. |
| * |
| * @param dev Character device. |
| * @param ch Character to be printed. |
| * @param silent Whether the output should be silenced. |
| * |
| */ |
| static void ski_putchar(outdev_t *dev, const wchar_t ch, bool silent) |
| { |
| if (!silent) { |
| if (ascii_check(ch)) { |
| if (ch == '\n') |
| ski_do_putchar('\r'); |
| |
| ski_do_putchar(ch); |
| } else |
| ski_do_putchar(U_SPECIAL); |
| } |
| } |
| |
| void skiout_init(void) |
| { |
| ski_init(); |
| |
| outdev_initialize("skiout", &skiout, &skiout_ops); |
| stdout = &skiout; |
| |
| sysinfo_set_item_val("fb", NULL, false); |
| } |
| |
| /** 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 wchar_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 (wchar_t) ch; |
| } |
| |
| /** Ask keyboard if a key was pressed. |
| * |
| * If so, it will repeat and pull up to POLL_LIMIT characters. |
| */ |
| static void poll_keyboard(ski_instance_t *instance) |
| { |
| wchar_t ch; |
| int count; |
| |
| if (kbd_disabled) |
| return; |
| |
| count = POLL_LIMIT; |
| |
| while (count > 0) { |
| ch = ski_getchar(); |
| |
| if (ch == '\0') |
| break; |
| |
| indev_push_character(instance->srlnin, ch); |
| --count; |
| } |
| } |
| |
| /** Kernel thread for polling keyboard. */ |
| static void kskipoll(void *arg) |
| { |
| ski_instance_t *instance = (ski_instance_t *) arg; |
| |
| while (true) { |
| if (!silent) |
| poll_keyboard(instance); |
| |
| thread_usleep(POLL_INTERVAL); |
| } |
| } |
| |
| ski_instance_t *skiin_init(void) |
| { |
| ski_init(); |
| |
| ski_instance_t *instance = |
| malloc(sizeof(ski_instance_t), FRAME_ATOMIC); |
| |
| if (instance) { |
| instance->thread = thread_create(kskipoll, instance, TASK, 0, |
| "kskipoll", true); |
| |
| if (!instance->thread) { |
| free(instance); |
| return NULL; |
| } |
| |
| instance->srlnin = NULL; |
| } |
| |
| return instance; |
| } |
| |
| void skiin_wire(ski_instance_t *instance, indev_t *srlnin) |
| { |
| ASSERT(instance); |
| ASSERT(srlnin); |
| |
| instance->srlnin = srlnin; |
| thread_ready(instance->thread); |
| |
| sysinfo_set_item_val("kbd", NULL, true); |
| sysinfo_set_item_val("kbd.type", NULL, KBD_SKI); |
| } |
| |
| void ski_kbd_grab(void) |
| { |
| kbd_disabled = false; |
| } |
| |
| void ski_kbd_release(void) |
| { |
| kbd_disabled = true; |
| } |
| |
| /** @} |
| */ |
| Property changes: |
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| Added: svn:mergeinfo |
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