| 0,0 → 1,158 |
|---|
| /* |
| * 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. |
| */ |
| |
| #include <ipc/ipc.h> |
| #include <ipc/services.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <ipc/ns.h> |
| #include <errno.h> |
| #include <arch/kbd.h> |
| #include <kbd.h> |
| #include <key_buffer.h> |
| #include <fifo.h> |
| |
| #define NAME "KBD" |
| |
| #define KBD_REQUEST_MAX 32 /**< Maximum requests buffered until keypress */ |
| |
| int main(int argc, char **argv) |
| { |
| ipc_call_t call; |
| ipc_callid_t callid; |
| char connected = 0; |
| int res; |
| int c; |
| ipcarg_t phonead; |
| |
| ipcarg_t retval, arg1, arg2; |
| |
| /* Counter of unsatisfied calls */ |
| fifo_count_t callers_counter = 0; |
| /* Fifo with callid's of unsatisfied calls requred for answer */ |
| FIFO_INITIALIZE_STATIC(callers_buffer, ipc_callid_t, KBD_REQUEST_MAX); |
| |
| printf("Uspace kbd service started.\n"); |
| |
| /* Initialize arch dependent parts */ |
| if (!(res = kbd_arch_init())) { |
| printf("Kbd registration failed with retval %d.\n", res); |
| return -1; |
| }; |
| |
| /* Initialize key buffer */ |
| key_buffer_init(); |
| |
| /* Register service at nameserver */ |
| printf("%s: Registering at naming service.\n", NAME); |
| |
| if ((res = ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, &phonead)) != 0) { |
| printf("%s: Error: Registering at naming service failed.\n", NAME); |
| return -1; |
| }; |
| |
| while (1) { |
| callid = ipc_wait_for_call(&call, 0); |
| // printf("%s:Call phone=%lX..", NAME, call.in_phone_hash); |
| switch (IPC_GET_METHOD(call)) { |
| case IPC_M_PHONE_HUNGUP: |
| if (connected) { |
| /* If nobody's connected, clear keybuffer and dont store new keys */ |
| if (--connected == 0) { |
| callers_counter = 0; |
| callers_buffer.head = callers_buffer.tail = 0; |
| key_buffer_free(); |
| } |
| |
| printf("%s: Phone hung up.\n", NAME); |
| } else { |
| printf("%s: Oops, got phone hung up, but nobody connected.\n", NAME); |
| } |
| |
| retval = 0; |
| break; |
| case IPC_M_CONNECT_ME_TO: |
| // printf("%s: Connect me (%P) to: %zd\n",NAME, IPC_GET_ARG3(call), IPC_GET_ARG1(call)); |
| /* Only one connected client allowed */ |
| if (connected) { |
| retval = ELIMIT; |
| } else { |
| retval = 0; |
| connected = 1; |
| } |
| break; |
| case IPC_M_INTERRUPT: |
| if (connected) { |
| /* recode scancode and store it into key buffer */ |
| kbd_arch_process(IPC_GET_ARG2(call)); |
| //printf("%s: GOT INTERRUPT: %c\n", NAME, IPC_GET_ARG2(call)); |
| |
| /* Some callers could awaiting keypress - if its true, we have to send keys to them. |
| * One interrupt can store more than one key into buffer. */ |
| retval = 0; |
| arg2 = 0xbeef; |
| while ((callers_counter) && (!key_buffer_empty())) { |
| callers_counter--; |
| if (!key_buffer_pop((char *)&arg1)) { |
| printf("%s: KeyBuffer empty but it should not be.\n"); |
| break; |
| } |
| ipc_answer_fast(fifo_pop(callers_buffer), retval, arg1, arg2); |
| } |
| } |
| break; |
| case KBD_GETCHAR: |
| // printf("%s: Getchar: ", NAME); |
| retval = 0; |
| arg1 = 0; |
| if (!key_buffer_pop((char *)&arg1)) { |
| if (callers_counter < KBD_REQUEST_MAX) { |
| callers_counter++; |
| fifo_push(callers_buffer, callid); |
| } else { |
| retval = ELIMIT; |
| } |
| continue; |
| }; |
| arg2 = 0xbeef; |
| // printf("GetChar return %c\n", arg1); |
| |
| break; |
| default: |
| printf("%s: Unknown method: %zd\n", NAME, IPC_GET_METHOD(call)); |
| retval = ENOENT; |
| break; |
| } |
| |
| if (! (callid & IPC_CALLID_NOTIFICATION)) { |
| ipc_answer_fast(callid, retval, arg1, arg2); |
| } |
| } |
| } |
| |