| 0,0 → 1,166 |
|---|
| /* |
| * Copyright (c) 2001-2004 Jakub Jermar |
| * Copyright (c) 2006 Josef Cejka |
| * 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 kbdia64 ia64 |
| * @brief HelenOS ia64 |
| * @ingroup kbd |
| * @{ |
| */ |
| /** @file |
| * @ingroup kbdia64 |
| */ |
| |
| #include <arch/lkbd.h> |
| #include <ipc/ipc.h> |
| #include <unistd.h> |
| #include <kbd.h> |
| #include <keys.h> |
| #include <genarch/kbd.h> |
| #include <sysinfo.h> |
| |
| /* Interesting bits for status register */ |
| #define i8042_OUTPUT_FULL 0x1 |
| #define i8042_INPUT_FULL 0x2 |
| #define i8042_MOUSE_DATA 0x20 |
| |
| /* Command constants */ |
| #define i8042_CMD_KBD 0x60 |
| #define i8042_CMD_MOUSE 0xd4 |
| |
| /* Keyboard cmd byte */ |
| #define i8042_KBD_IE 0x1 |
| #define i8042_MOUSE_IE 0x2 |
| #define i8042_KBD_DISABLE 0x10 |
| #define i8042_MOUSE_DISABLE 0x20 |
| #define i8042_KBD_TRANSLATE 0x40 |
| |
| /* Mouse constants */ |
| #define MOUSE_OUT_INIT 0xf4 |
| #define MOUSE_ACK 0xfa |
| |
| #define KEY_RELEASE 0x80 |
| |
| static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
| static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
| |
| irq_cmd_t i8042_cmds[2] = { |
| { CMD_PORT_READ_1, (void *) 0x64, 0, 1 }, |
| { CMD_PORT_READ_1, (void *) 0x60, 0, 2 } |
| }; |
| |
| irq_code_t i8042_kbd = { |
| 2, |
| i8042_cmds |
| }; |
| |
| static void wait_ready(void) { |
| while (i8042_status_read() & i8042_INPUT_FULL) |
| ; |
| } |
| |
| /** Register uspace irq handler |
| * @return |
| */ |
| int lkbd_arch_init(void) |
| { |
| int i; |
| int mouseenabled = 0; |
| |
| iospace_enable(task_get_id(), (void *) i8042_DATA, 5); |
| /* Disable kbd, enable mouse */ |
| i8042_command_write(i8042_CMD_KBD); |
| wait_ready(); |
| i8042_command_write(i8042_CMD_KBD); |
| wait_ready(); |
| i8042_data_write(i8042_KBD_DISABLE); |
| wait_ready(); |
| |
| /* Flush all current IO */ |
| while (i8042_status_read() & i8042_OUTPUT_FULL) |
| i8042_data_read(); |
| |
| /* Initialize mouse */ |
| i8042_command_write(i8042_CMD_MOUSE); |
| wait_ready(); |
| i8042_data_write(MOUSE_OUT_INIT); |
| wait_ready(); |
| |
| int mouseanswer = 0; |
| for (i=0;i < 1000; i++) { |
| int status = i8042_status_read(); |
| if (status & i8042_OUTPUT_FULL) { |
| int data = i8042_data_read(); |
| if (status & i8042_MOUSE_DATA) { |
| mouseanswer = data; |
| break; |
| } |
| } |
| usleep(1000); |
| } |
| if (mouseanswer == MOUSE_ACK) { |
| /* enable mouse */ |
| mouseenabled = 1; |
| |
| ipc_register_irq(sysinfo_value("mouse.inr"), sysinfo_value("mouse.devno"), 0, &i8042_kbd); |
| } |
| /* Enable kbd */ |
| ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), 0, &i8042_kbd); |
| |
| int newcontrol = i8042_KBD_IE | i8042_KBD_TRANSLATE; |
| if (mouseenabled) |
| newcontrol |= i8042_MOUSE_IE; |
| |
| i8042_command_write(i8042_CMD_KBD); |
| wait_ready(); |
| i8042_data_write(newcontrol); |
| wait_ready(); |
| |
| return 0; |
| } |
| |
| /** Process keyboard & mouse events */ |
| int lkbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call) |
| { |
| int status = IPC_GET_ARG1(*call); |
| |
| if ((status & i8042_MOUSE_DATA)) |
| return 0; |
| |
| int scan_code = IPC_GET_ARG2(*call); |
| |
| if (scan_code & KEY_RELEASE) |
| key_released(keybuffer, scan_code ^ KEY_RELEASE); |
| else |
| key_pressed(keybuffer, scan_code); |
| return 1; |
| } |
| |
| /** |
| * @} |
| */ |