| 53,8 → 53,9 |
|---|
| |
| 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"); |
| 82,14 → 83,18 |
|---|
| 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); |
| } |
| |
| printf("%s: Phone hung up.\n", NAME); |
| retval = 0; |
| break; |
| case IPC_M_CONNECT_TO_ME: |
| 98,6 → 103,7 |
|---|
| 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 { |
| 107,14 → 113,24 |
|---|
| 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)); |
| if (!callers_counter) |
| |
| /* 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; |
| /* Small trick - interrupt does not need answer so we can change callid to caller awaiting key */ |
| callers_counter--; |
| callid = fifo_pop(callers_buffer); |
| } |
| ipc_answer_fast(fifo_pop(callers_buffer), retval, arg1, arg2); |
| } |
| } |
| break; |
| case KBD_GETCHAR: |
| // printf("%s: Getchar: ", NAME); |
| retval = 0; |
| 137,9 → 153,10 |
|---|
| retval = ENOENT; |
| break; |
| } |
| |
| if (! (callid & IPC_CALLID_NOTIFICATION)) { |
| // printf("%s: Answering\n", NAME); |
| ipc_answer_fast(callid, retval, arg1, arg2); |
| } |
| } |
| } |
| |