| 0,0 → 1,205 |
|---|
| /* |
| * 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 <arch/interrupt.h> |
| #include <sysinfo/sysinfo.h> |
| |
| chardev_t ski_console; |
| chardev_t ski_uconsole; |
| static bool kb_disable; |
| int kbd_uspace=0; |
| |
| static void ski_putchar(chardev_t *d, const char ch); |
| static int32_t ski_getchar(void); |
| |
| /** 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. |
| */ |
| void ski_putchar(chardev_t *d, const char ch) |
| { |
| __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'); |
| } |
| |
| /** 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. |
| */ |
| 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; |
| } |
| |
| /** |
| * This is a blocking wrapper for ski_getchar(). |
| * To be used when the kernel crashes. |
| */ |
| static char ski_getchar_blocking(chardev_t *d) |
| { |
| int ch; |
| |
| while(!(ch=ski_getchar())) |
| ; |
| if(ch == '\r') |
| ch = '\n'; |
| return (char) ch; |
| } |
| |
| /** Ask keyboard if a key was pressed. */ |
| void poll_keyboard(void) |
| { |
| char ch; |
| static char last; |
| |
| if (kb_disable) |
| return; |
| |
| ch = ski_getchar(); |
| if(ch == '\r') |
| ch = '\n'; |
| if (ch){ |
| if(kbd_uspace){ |
| chardev_push_character(&ski_uconsole, ch); |
| virtual_interrupt(IRQ_KBD,NULL); |
| } |
| else { |
| chardev_push_character(&ski_console, ch); |
| } |
| last = ch; |
| return; |
| } |
| |
| if (last){ |
| if(kbd_uspace){ |
| chardev_push_character(&ski_uconsole, 0); |
| virtual_interrupt(IRQ_KBD,NULL); |
| } |
| else { |
| } |
| last = 0; |
| } |
| |
| } |
| |
| /* Called from getc(). */ |
| static void ski_kb_enable(chardev_t *d) |
| { |
| kb_disable = false; |
| } |
| |
| /* Called from getc(). */ |
| static void ski_kb_disable(chardev_t *d) |
| { |
| kb_disable = true; |
| } |
| |
| |
| static chardev_operations_t ski_ops = { |
| .resume = ski_kb_enable, |
| .suspend = ski_kb_disable, |
| .write = ski_putchar, |
| .read = ski_getchar_blocking |
| }; |
| |
| |
| /** Initialize debug console |
| * |
| * Issue SSC (Simulator System Call) to |
| * to open debug console. |
| */ |
| void ski_init_console(void) |
| { |
| __asm__ volatile ( |
| "mov r15=%0\n" |
| "break 0x80000\n" |
| : |
| : "i" (SKI_INIT_CONSOLE) |
| : "r15", "r8" |
| ); |
| |
| chardev_initialize("ski_console", &ski_console, &ski_ops); |
| chardev_initialize("ski_uconsole", &ski_uconsole, &ski_ops); |
| stdin = &ski_console; |
| stdout = &ski_console; |
| |
| } |
| /** Setup console sysinfo (i.e. Keyboard IRQ) |
| * |
| * Because sysinfo neads memory allocation/dealocation |
| * this functions should be called separetely from init. |
| * |
| */ |
| void ski_set_console_sysinfo(void) |
| { |
| sysinfo_set_item_val("kbd",NULL,true); |
| sysinfo_set_item_val("kbd.irq",NULL,IRQ_KBD); |
| } |
| |
| /** @} |
| */ |
| |