| 0,0 → 1,274 |
|---|
| /* |
| * Copyright (c) 2006 Josef Cejka |
| * Copyright (c) 2006 Jakub Vana |
| * Copyright (c) 2008 Jiri Svoboda |
| * 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 libc |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <libc.h> |
| #include <async.h> |
| #include <io/stream.h> |
| #include <ipc/console.h> |
| #include <ipc/services.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <console.h> |
| |
| static int console_phone = -1; |
| |
| /** Size of cbuffer. */ |
| #define CBUFFER_SIZE 256 |
| |
| /** Buffer for writing characters to the console. */ |
| static char cbuffer[CBUFFER_SIZE]; |
| |
| /** Pointer to end of cbuffer. */ |
| static char *cbuffer_end = cbuffer + CBUFFER_SIZE; |
| |
| /** Pointer to first available field in cbuffer. */ |
| static char *cbp = cbuffer; |
| |
| |
| /** Write one character to the console via IPC. */ |
| static void cons_putchar(wchar_t c) |
| { |
| console_wait(); |
| async_msg_1(console_phone, CONSOLE_PUTCHAR, c); |
| } |
| |
| /** Write characters to the console via IPC or to klog */ |
| static ssize_t cons_write(const char *buf, size_t size) |
| { |
| console_open(false); |
| |
| if (console_phone >= 0) { |
| async_serialize_start(); |
| |
| ipc_call_t answer; |
| aid_t req = async_send_0(console_phone, CONSOLE_WRITE, &answer); |
| ipcarg_t rc = ipc_data_write_start(console_phone, (void *) buf, size); |
| |
| if (rc != EOK) { |
| async_wait_for(req, NULL); |
| async_serialize_end(); |
| return (ssize_t) rc; |
| } |
| |
| async_wait_for(req, &rc); |
| async_serialize_end(); |
| |
| if (rc == EOK) |
| return (ssize_t) IPC_GET_ARG1(answer); |
| else |
| return -1; |
| } else |
| return __SYSCALL3(SYS_KLOG, 1, (sysarg_t) buf, size); |
| } |
| |
| /** Write all data from output buffer to the console. */ |
| static void cbuffer_flush(void) |
| { |
| size_t len = cbp - cbuffer; |
| |
| while (len > 0) { |
| ssize_t rc = cons_write(cbuffer, cbp - cbuffer); |
| if (rc < 0) |
| return; |
| |
| len -= rc; |
| } |
| |
| cbp = cbuffer; |
| } |
| |
| /** Drop all data in console output buffer. */ |
| static void cbuffer_drain(void) |
| { |
| cbp = cbuffer; |
| } |
| |
| /** Write one character to the output buffer. */ |
| static inline void cbuffer_putc(char c) |
| { |
| if (cbp == cbuffer_end) |
| cbuffer_flush(); |
| |
| *cbp++ = c; |
| |
| if (c == '\n') |
| cbuffer_flush(); |
| } |
| |
| int console_open(bool blocking) |
| { |
| if (console_phone < 0) { |
| int phone; |
| |
| if (blocking) |
| phone = ipc_connect_me_to_blocking(PHONE_NS, |
| SERVICE_CONSOLE, 0, 0); |
| else |
| phone = ipc_connect_me_to(PHONE_NS, |
| SERVICE_CONSOLE, 0, 0); |
| |
| if (phone >= 0) |
| console_phone = phone; |
| } |
| |
| return console_phone; |
| } |
| |
| void console_close(void) |
| { |
| if (console_phone >= 0) { |
| if (ipc_hangup(console_phone) == 0) |
| console_phone = -1; |
| } |
| } |
| |
| void console_wait(void) |
| { |
| while (console_phone < 0) |
| console_open(true); |
| } |
| |
| void console_clear(void) |
| { |
| console_wait(); |
| cbuffer_drain(); |
| async_msg_0(console_phone, CONSOLE_CLEAR); |
| } |
| |
| int console_get_size(int *rows, int *cols) |
| { |
| console_wait(); |
| |
| ipcarg_t r; |
| ipcarg_t c; |
| int rc = async_req_0_2(console_phone, CONSOLE_GETSIZE, &r, &c); |
| |
| *rows = (int) r; |
| *cols = (int) c; |
| |
| return rc; |
| } |
| |
| void console_set_style(int style) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_1(console_phone, CONSOLE_SET_STYLE, style); |
| } |
| |
| void console_set_color(int fg_color, int bg_color, int flags) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_3(console_phone, CONSOLE_SET_COLOR, fg_color, bg_color, flags); |
| } |
| |
| void console_set_rgb_color(int fg_color, int bg_color) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_2(console_phone, CONSOLE_SET_RGB_COLOR, fg_color, bg_color); |
| } |
| |
| void console_cursor_visibility(int show) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_1(console_phone, CONSOLE_CURSOR_VISIBILITY, show != 0); |
| } |
| |
| void console_kcon_enable(void) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_0(console_phone, CONSOLE_KCON_ENABLE); |
| } |
| |
| void console_goto(int row, int col) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| async_msg_2(console_phone, CONSOLE_GOTO, row, col); |
| } |
| |
| void console_putchar(wchar_t c) |
| { |
| console_wait(); |
| cbuffer_flush(); |
| cons_putchar(c); |
| } |
| |
| /** Write characters to the console. */ |
| ssize_t console_write(const char *buf, size_t size) |
| { |
| size_t left = size; |
| |
| while (left > 0) { |
| cbuffer_putc(*buf++); |
| left--; |
| } |
| |
| return size; |
| } |
| |
| /** Write a NULL-terminated string to the console. */ |
| void console_putstr(const char *str) |
| { |
| size_t left = str_size(str); |
| |
| while (left > 0) { |
| ssize_t rc = console_write(str, left); |
| |
| if (rc < 0) { |
| /* Error */ |
| return; |
| } |
| |
| str += rc; |
| left -= rc; |
| } |
| } |
| |
| /** Flush all output to the console or klog. */ |
| void console_flush(void) |
| { |
| cbuffer_flush(); |
| if (console_phone >= 0) |
| async_msg_0(console_phone, CONSOLE_FLUSH); |
| } |
| |
| /** @} |
| */ |