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  1. /*
  2.  * Copyright (c) 2006 Ondrej Palkovsky
  3.  * Copyright (c) 2008 Martin Decky
  4.  * Copyright (c) 2008 Pavel Rimsky
  5.  * All rights reserved.
  6.  *
  7.  * Redistribution and use in source and binary forms, with or without
  8.  * modification, are permitted provided that the following conditions
  9.  * are met:
  10.  *
  11.  * - Redistributions of source code must retain the above copyright
  12.  *   notice, this list of conditions and the following disclaimer.
  13.  * - Redistributions in binary form must reproduce the above copyright
  14.  *   notice, this list of conditions and the following disclaimer in the
  15.  *   documentation and/or other materials provided with the distribution.
  16.  * - The name of the author may not be used to endorse or promote products
  17.  *   derived from this software without specific prior written permission.
  18.  *
  19.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  28.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29.  */
  30.  
  31. /**
  32.  * @defgroup serial Serial console
  33.  * @brief    Serial console services (putc, puts, clear screen, cursor goto,...)
  34.  * @{
  35.  */
  36.  
  37. /** @file
  38.  */
  39.  
  40. #include <stdio.h>
  41. #include <ipc/ipc.h>
  42. #include <async.h>
  43. #include <ipc/fb.h>
  44. #include <bool.h>
  45. #include <errno.h>
  46. #include <console/color.h>
  47. #include <console/style.h>
  48.  
  49. #include "../console/screenbuffer.h"
  50. #include "main.h"
  51. #include "serial_console.h"
  52.  
  53. #define MAX_CONTROL 20
  54.  
  55. static void serial_sgr(const unsigned int mode);
  56.  
  57. static int scr_width;
  58. static int scr_height;
  59. static bool color = true;   /** True if producing color output. */
  60. static putc_function_t putc_function;
  61.  
  62. /* Allow only 1 connection */
  63. static int client_connected = 0;
  64.  
  65. enum sgr_color_index {
  66.     CI_BLACK    = 0,
  67.     CI_RED      = 1,
  68.     CI_GREEN    = 2,
  69.     CI_BROWN    = 3,
  70.     CI_BLUE     = 4,
  71.     CI_MAGENTA  = 5,
  72.     CI_CYAN     = 6,
  73.     CI_WHITE    = 7,
  74. };
  75.  
  76. enum sgr_command {
  77.     SGR_RESET   = 0,
  78.     SGR_BOLD    = 1,
  79.     SGR_BLINK   = 5,
  80.     SGR_REVERSE = 7,
  81.     SGR_NORMAL_INT  = 22,
  82.     SGR_BLINK_OFF   = 25,
  83.     SGR_REVERSE_OFF = 27,
  84.     SGR_FGCOLOR = 30,
  85.     SGR_BGCOLOR = 40
  86. };
  87.  
  88. static int color_map[] = {
  89.     [COLOR_BLACK]   = CI_BLACK,
  90.     [COLOR_BLUE]    = CI_RED,
  91.     [COLOR_GREEN]   = CI_GREEN,
  92.     [COLOR_CYAN]    = CI_CYAN,
  93.     [COLOR_RED] = CI_RED,
  94.     [COLOR_MAGENTA] = CI_MAGENTA,
  95.     [COLOR_YELLOW]  = CI_BROWN,
  96.     [COLOR_WHITE]   = CI_WHITE
  97. };
  98.  
  99. void serial_puts(char *str)
  100. {
  101.     while (*str)
  102.         putc_function(*(str++));
  103. }
  104.  
  105. void serial_putchar(wchar_t ch)
  106. {
  107.     (*putc_function)(ch);
  108. }
  109.  
  110. void serial_goto(const unsigned int row, const unsigned int col)
  111. {
  112.     if ((row > scr_height) || (col > scr_width))
  113.         return;
  114.    
  115.     char control[MAX_CONTROL];
  116.     snprintf(control, MAX_CONTROL, "\033[%u;%uf", row + 1, col + 1);
  117.     serial_puts(control);
  118. }
  119.  
  120. void serial_clrscr(void)
  121. {
  122.     /* Initialize graphic rendition attributes. */
  123.     serial_sgr(SGR_RESET);
  124.     if (color) {
  125.         serial_sgr(SGR_FGCOLOR + CI_BLACK);
  126.         serial_sgr(SGR_BGCOLOR + CI_WHITE);
  127.     }
  128.  
  129.     serial_puts("\033[2J");
  130. }
  131.  
  132. void serial_scroll(int i)
  133. {
  134.     if (i > 0) {
  135.         serial_goto(scr_height - 1, 0);
  136.         while (i--)
  137.             serial_puts("\033D");
  138.     } else if (i < 0) {
  139.         serial_goto(0, 0);
  140.         while (i++)
  141.             serial_puts("\033M");
  142.     }
  143. }
  144.  
  145. /** ECMA-48 Set Graphics Rendition. */
  146. static void serial_sgr(const unsigned int mode)
  147. {
  148.     char control[MAX_CONTROL];
  149.     snprintf(control, MAX_CONTROL, "\033[%um", mode);
  150.     serial_puts(control);
  151. }
  152.  
  153. /** Set scrolling region. */
  154. void serial_set_scroll_region(unsigned last_row)
  155. {
  156.     char control[MAX_CONTROL];
  157.     snprintf(control, MAX_CONTROL, "\033[0;%ur", last_row);
  158.     serial_puts(control);
  159. }
  160.  
  161. void serial_cursor_disable(void)
  162. {
  163.     serial_puts("\033[?25l");
  164. }
  165.  
  166. void serial_cursor_enable(void)
  167. {
  168.     serial_puts("\033[?25h");
  169. }
  170.  
  171. void serial_console_init(putc_function_t putc_fn, uint32_t w, uint32_t h)
  172. {
  173.     scr_width = w;
  174.     scr_height = h;
  175.     putc_function = putc_fn;
  176. }
  177.  
  178. static void serial_set_style(int style)
  179. {
  180.     if (style == STYLE_EMPHASIS) {
  181.         if (color) {
  182.             serial_sgr(SGR_RESET);
  183.             serial_sgr(SGR_FGCOLOR + CI_RED);
  184.             serial_sgr(SGR_BGCOLOR + CI_WHITE);
  185.         }
  186.         serial_sgr(SGR_BOLD);
  187.     } else {
  188.         if (color) {
  189.             serial_sgr(SGR_RESET);
  190.             serial_sgr(SGR_FGCOLOR + CI_BLACK);
  191.             serial_sgr(SGR_BGCOLOR + CI_WHITE);
  192.         }
  193.         serial_sgr(SGR_NORMAL_INT);
  194.     }
  195. }
  196.  
  197. static void serial_set_idx(unsigned fgcolor, unsigned bgcolor,
  198.     unsigned flags)
  199. {
  200.     if (color) {
  201.         serial_sgr(SGR_RESET);
  202.         serial_sgr(SGR_FGCOLOR + color_map[fgcolor]);
  203.         serial_sgr(SGR_BGCOLOR + color_map[bgcolor]);
  204.     } else {
  205.         if (fgcolor < bgcolor)
  206.             serial_sgr(SGR_RESET);
  207.         else
  208.             serial_sgr(SGR_REVERSE);
  209.     }  
  210. }
  211.  
  212. static void serial_set_rgb(uint32_t fgcolor, uint32_t bgcolor)
  213. {
  214.     if (fgcolor < bgcolor)
  215.         serial_sgr(SGR_REVERSE_OFF);
  216.     else
  217.         serial_sgr(SGR_REVERSE);   
  218. }
  219.  
  220. static void serial_set_attrs(const attrs_t *a)
  221. {
  222.     switch (a->t) {
  223.     case at_style: serial_set_style(a->a.s.style); break;
  224.     case at_rgb: serial_set_rgb(a->a.r.fg_color, a->a.r.bg_color); break;
  225.     case at_idx: serial_set_idx(a->a.i.fg_color,
  226.         a->a.i.bg_color, a->a.i.flags); break;
  227.     default: break;
  228.     }
  229. }
  230.  
  231. /** Draw text data to viewport.
  232.  *
  233.  * @param vport Viewport id
  234.  * @param data  Text data.
  235.  * @param x Leftmost column of the area.
  236.  * @param y Topmost row of the area.
  237.  * @param w Number of rows.
  238.  * @param h Number of columns.
  239.  */
  240. static void draw_text_data(keyfield_t *data, unsigned int x,
  241.     unsigned int y, unsigned int w, unsigned int h)
  242. {
  243.     unsigned int i, j;
  244.     keyfield_t *field;
  245.     attrs_t *a0, *a1;
  246.  
  247.     serial_goto(y, x);
  248.     a0 = &data[0].attrs;
  249.     serial_set_attrs(a0);
  250.  
  251.     for (j = 0; j < h; j++) {
  252.         if (j > 0 && w != scr_width)
  253.             serial_goto(y, x);
  254.  
  255.         for (i = 0; i < w; i++) {
  256.             unsigned int col = x + i;
  257.             unsigned int row = y + j;
  258.  
  259.             field = &data[j * w + i];
  260.  
  261.             a1 = &field->attrs;
  262.             if (!attrs_same(*a0, *a1))
  263.                 serial_set_attrs(a1);
  264.             serial_putchar(field->character);
  265.             a0 = a1;
  266.         }
  267.     }
  268. }
  269.  
  270. int lastcol = 0;
  271. int lastrow = 0;
  272.  
  273. /**
  274.  * Main function of the thread serving client connections.
  275.  */
  276. void serial_client_connection(ipc_callid_t iid, ipc_call_t *icall)
  277. {
  278.     int retval;
  279.     ipc_callid_t callid;
  280.     ipc_call_t call;
  281.     keyfield_t *interbuf = NULL;
  282.     size_t intersize = 0;
  283.  
  284.     wchar_t c;
  285.     int col, row, w, h;
  286.     int fgcolor;
  287.     int bgcolor;
  288.     int flags;
  289.     int style;
  290.     int i;
  291.  
  292.    
  293.     if (client_connected) {
  294.         ipc_answer_0(iid, ELIMIT);
  295.         return;
  296.     }
  297.    
  298.     client_connected = 1;
  299.     ipc_answer_0(iid, EOK);
  300.    
  301.     /* Clear the terminal, set scrolling region
  302.        to 0 - height rows. */
  303.     serial_clrscr();
  304.     serial_goto(0, 0);
  305.     serial_set_scroll_region(scr_height);
  306.    
  307.     while (true) {
  308.         callid = async_get_call(&call);
  309.         switch (IPC_GET_METHOD(call)) {
  310.         case IPC_M_PHONE_HUNGUP:
  311.             client_connected = 0;
  312.             ipc_answer_0(callid, EOK);
  313.             return;
  314.         case IPC_M_SHARE_OUT:
  315.             /* We accept one area for data interchange */
  316.             intersize = IPC_GET_ARG2(call);
  317.             if (intersize >= scr_width * scr_height *
  318.                 sizeof(*interbuf)) {
  319.                 receive_comm_area(callid, &call,
  320.                     (void *) &interbuf);
  321.                 continue;
  322.             }
  323.             retval = EINVAL;
  324.             break;
  325.         case FB_DRAW_TEXT_DATA:
  326.             col = IPC_GET_ARG1(call);
  327.             row = IPC_GET_ARG2(call);
  328.             w = IPC_GET_ARG3(call);
  329.             h = IPC_GET_ARG4(call);
  330.             if (!interbuf) {
  331.                 retval = EINVAL;
  332.                 break;
  333.             }
  334.             if (col + w > scr_width || row + h > scr_height) {
  335.                 retval = EINVAL;
  336.                 break;
  337.             }
  338.             draw_text_data(interbuf, col, row, w, h);
  339.             lastrow = row + h - 1;
  340.             lastcol = col + w;
  341.             retval = 0;
  342.             break;
  343.         case FB_PUTCHAR:
  344.             c = IPC_GET_ARG1(call);
  345.             row = IPC_GET_ARG2(call);
  346.             col = IPC_GET_ARG3(call);
  347.             if ((lastcol != col) || (lastrow != row))
  348.                 serial_goto(row, col);
  349.             lastcol = col + 1;
  350.             lastrow = row;
  351.             serial_putchar(c);
  352.             retval = 0;
  353.             break;
  354.         case FB_CURSOR_GOTO:
  355.             row = IPC_GET_ARG1(call);
  356.             col = IPC_GET_ARG2(call);
  357.             serial_goto(row, col);
  358.             lastrow = row;
  359.             lastcol = col;
  360.             retval = 0;
  361.             break;
  362.         case FB_GET_CSIZE:
  363.             ipc_answer_2(callid, EOK, scr_height, scr_width);
  364.             continue;
  365.         case FB_CLEAR:
  366.             serial_clrscr();
  367.             retval = 0;
  368.             break;
  369.         case FB_SET_STYLE:
  370.             style = IPC_GET_ARG1(call);
  371.             serial_set_style(style);
  372.             retval = 0;
  373.             break;
  374.         case FB_SET_COLOR:
  375.             fgcolor = IPC_GET_ARG1(call);
  376.             bgcolor = IPC_GET_ARG2(call);
  377.             flags = IPC_GET_ARG3(call);
  378.  
  379.             serial_set_idx(fgcolor, bgcolor, flags);
  380.             retval = 0;
  381.             break;
  382.         case FB_SET_RGB_COLOR:
  383.             fgcolor = IPC_GET_ARG1(call);
  384.             bgcolor = IPC_GET_ARG2(call);
  385.  
  386.             serial_set_rgb(fgcolor, bgcolor);
  387.             retval = 0;
  388.             break;
  389.         case FB_SCROLL:
  390.             i = IPC_GET_ARG1(call);
  391.             if ((i > scr_height) || (i < -scr_height)) {
  392.                 retval = EINVAL;
  393.                 break;
  394.             }
  395.             serial_scroll(i);
  396.             serial_goto(lastrow, lastcol);
  397.             retval = 0;
  398.             break;
  399.         case FB_CURSOR_VISIBILITY:
  400.             if(IPC_GET_ARG1(call))
  401.                 serial_cursor_enable();
  402.             else
  403.                 serial_cursor_disable();
  404.             retval = 0;
  405.             break;
  406.         default:
  407.             retval = ENOENT;
  408.         }
  409.         ipc_answer_0(callid, retval);
  410.     }
  411. }
  412.  
  413. /**
  414.  * @}
  415.  */
  416.