| 0,0 → 1,260 |
|---|
| /* |
| * Copyright (c) 2006 Martin Decky |
| * 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 ppc32 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch/drivers/cuda.h> |
| #include <arch/asm.h> |
| #include <console/console.h> |
| #include <console/chardev.h> |
| #include <arch/drivers/pic.h> |
| #include <sysinfo/sysinfo.h> |
| #include <interrupt.h> |
| #include <stdarg.h> |
| #include <ddi/device.h> |
| #include <string.h> |
| |
| #define CUDA_IRQ 10 |
| |
| #define PACKET_ADB 0x00 |
| #define PACKET_CUDA 0x01 |
| |
| #define CUDA_POWERDOWN 0x0a |
| #define CUDA_RESET 0x11 |
| |
| #define RS 0x200 |
| #define B (0 * RS) |
| #define A (1 * RS) |
| #define SR (10 * RS) |
| #define ACR (11 * RS) |
| |
| #define SR_OUT 0x10 |
| #define TACK 0x10 |
| #define TIP 0x20 |
| |
| #define SCANCODES 128 |
| |
| static volatile uint8_t *cuda = NULL; |
| static irq_t cuda_irq; /**< Cuda's IRQ. */ |
| |
| static wchar_t lchars[SCANCODES] = { |
| 'a', 's', 'd', 'f', 'h', 'g', 'z', 'x', 'c', 'v', |
| U_SPECIAL, |
| 'b', 'q', 'w', 'e', 'r', 'y', 't', '1', '2', '3', '4', '6', '5', |
| '=', '9', '7', '-', '8', '0', ']', 'o', 'u', '[', 'i', 'p', |
| '\n', /* Enter */ |
| 'l', 'j', '\'', 'k', ';', '\\', ',', '/', 'n', 'm', '.', |
| '\t', /* Tab */ |
| ' ', '`', |
| '\b', /* Backspace */ |
| U_SPECIAL, |
| U_ESCAPE, /* Escape */ |
| U_SPECIAL, /* Ctrl */ |
| U_SPECIAL, /* Alt */ |
| U_SPECIAL, /* Shift */ |
| U_SPECIAL, /* CapsLock */ |
| U_SPECIAL, /* Right Alt */ |
| U_LEFT_ARROW, /* Left */ |
| U_RIGHT_ARROW, /* Right */ |
| U_DOWN_ARROW, /* Down */ |
| U_UP_ARROW, /* Up */ |
| U_SPECIAL, |
| U_SPECIAL, |
| '.', /* Keypad . */ |
| U_SPECIAL, |
| '*', /* Keypad * */ |
| U_SPECIAL, |
| '+', /* Keypad + */ |
| U_SPECIAL, |
| U_SPECIAL, /* NumLock */ |
| U_SPECIAL, |
| U_SPECIAL, |
| U_SPECIAL, |
| '/', /* Keypad / */ |
| '\n', /* Keypad Enter */ |
| U_SPECIAL, |
| '-', /* Keypad - */ |
| U_SPECIAL, |
| U_SPECIAL, |
| U_SPECIAL, |
| '0', /* Keypad 0 */ |
| '1', /* Keypad 1 */ |
| '2', /* Keypad 2 */ |
| '3', /* Keypad 3 */ |
| '4', /* Keypad 4 */ |
| '5', /* Keypad 5 */ |
| '6', /* Keypad 6 */ |
| '7', /* Keypad 7 */ |
| U_SPECIAL, |
| '8', /* Keypad 8 */ |
| '9', /* Keypad 9 */ |
| U_SPECIAL, |
| U_SPECIAL, |
| U_SPECIAL, |
| U_SPECIAL, /* F5 */ |
| U_SPECIAL, /* F6 */ |
| U_SPECIAL, /* F7 */ |
| U_SPECIAL, /* F3 */ |
| U_SPECIAL, /* F8 */ |
| U_SPECIAL, /* F9 */ |
| U_SPECIAL, |
| U_SPECIAL, /* F11 */ |
| U_SPECIAL, |
| U_SPECIAL, /* F13 */ |
| U_SPECIAL, |
| U_SPECIAL, /* ScrollLock */ |
| U_SPECIAL, |
| U_SPECIAL, /* F10 */ |
| U_SPECIAL, |
| U_SPECIAL, /* F12 */ |
| U_SPECIAL, |
| U_SPECIAL, /* Pause */ |
| U_SPECIAL, /* Insert */ |
| U_HOME_ARROW, /* Home */ |
| U_PAGE_UP, /* Page Up */ |
| U_DELETE, /* Delete */ |
| U_SPECIAL, /* F4 */ |
| U_END_ARROW, /* End */ |
| U_SPECIAL, /* F2 */ |
| U_PAGE_DOWN, /* Page Down */ |
| U_SPECIAL /* F1 */ |
| }; |
| |
| static void receive_packet(uint8_t *kind, index_t count, uint8_t data[]) |
| { |
| cuda[B] = cuda[B] & ~TIP; |
| *kind = cuda[SR]; |
| |
| index_t i; |
| for (i = 0; i < count; i++) |
| data[i] = cuda[SR]; |
| |
| cuda[B] = cuda[B] | TIP; |
| } |
| |
| static indev_t kbrd; |
| static indev_operations_t ops = { |
| .poll = NULL |
| }; |
| |
| int cuda_get_scancode(void) |
| { |
| if (cuda) { |
| uint8_t kind; |
| uint8_t data[4]; |
| |
| receive_packet(&kind, 4, data); |
| |
| if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c)) |
| return data[2]; |
| } |
| |
| return -1; |
| } |
| |
| static void cuda_irq_handler(irq_t *irq) |
| { |
| int scan_code = cuda_get_scancode(); |
| |
| if (scan_code != -1) { |
| uint8_t scancode = (uint8_t) scan_code; |
| if ((scancode & 0x80) != 0x80) |
| indev_push_character(&kbrd, lchars[scancode & 0x7f]); |
| } |
| } |
| |
| static irq_ownership_t cuda_claim(irq_t *irq) |
| { |
| return IRQ_ACCEPT; |
| } |
| |
| void cuda_init(uintptr_t base, size_t size) |
| { |
| cuda = (uint8_t *) hw_map(base, size); |
| |
| indev_initialize("cuda_kbd", &kbrd, &ops); |
| stdin = &kbrd; |
| |
| irq_initialize(&cuda_irq); |
| cuda_irq.devno = device_assign_devno(); |
| cuda_irq.inr = CUDA_IRQ; |
| cuda_irq.claim = cuda_claim; |
| cuda_irq.handler = cuda_irq_handler; |
| irq_register(&cuda_irq); |
| |
| pic_enable_interrupt(CUDA_IRQ); |
| |
| sysinfo_set_item_val("kbd", NULL, true); |
| sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ); |
| sysinfo_set_item_val("kbd.address.virtual", NULL, base); |
| } |
| |
| static void send_packet(const uint8_t kind, count_t count, ...) |
| { |
| index_t i; |
| va_list va; |
| |
| cuda[B] = cuda[B] | TIP; |
| cuda[ACR] = cuda[ACR] | SR_OUT; |
| cuda[SR] = kind; |
| cuda[B] = cuda[B] & ~TIP; |
| |
| va_start(va, count); |
| |
| for (i = 0; i < count; i++) { |
| cuda[ACR] = cuda[ACR] | SR_OUT; |
| cuda[SR] = va_arg(va, int); |
| cuda[B] = cuda[B] | TACK; |
| } |
| |
| va_end(va); |
| |
| cuda[B] = cuda[B] | TIP; |
| } |
| |
| void cpu_halt(void) { |
| asm volatile ( |
| "b 0\n" |
| ); |
| } |
| |
| void arch_reboot(void) { |
| if (cuda) |
| send_packet(PACKET_CUDA, 1, CUDA_RESET); |
| |
| asm volatile ( |
| "b 0\n" |
| ); |
| } |
| |
| /** @} |
| */ |