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   1 /*
   2  * Copyright © 2011 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include <ao.h>
  20 #include <ao_exti.h>
  21 #include <ao_profile.h>
  22 #if HAS_STACK_GUARD
  23 #include <ao_mpu.h>
  24 #endif
  25 #include <ao_ps2.h>
  26 #include <ao_vga.h>
  27 #include <ao_console.h>
  28
  29 struct ao_task ball_task;
  30
  31 #define BALL_WIDTH      5
  32 #define BALL_HEIGHT     5
  33
  34 static int      ball_x;
  35 static int      ball_y;
  36 static int      ball_dx, ball_dy;
  37
  38 uint8_t         ball_enable;
  39
  40 void
  41 ao_ball(void)
  42 {
  43         ball_dx = 1;
  44         ball_dy = 1;
  45         ball_x = 0;
  46         ball_y = 0;
  47         for (;;) {
  48                 while (!ball_enable)
  49                         ao_sleep(&ball_enable);
  50                 for (;;) {
  51                         ao_line(&ao_vga_bitmap,
  52                                 -100, -100, ball_x*2, ball_y*2,
  53                                 1, AO_XOR);
  54                         ao_text(&ao_vga_bitmap,
  55                                 ball_x, ball_y - 10,
  56                                 "Hello, Bdale!",
  57                                 1, AO_XOR);
  58                         ao_rect(&ao_vga_bitmap,
  59                                 ball_x, ball_y,
  60                                 BALL_WIDTH,
  61                                 BALL_HEIGHT,
  62                                 1,
  63                                 AO_XOR);
  64                         ao_delay(AO_MS_TO_TICKS(10));
  65                         ao_rect(&ao_vga_bitmap,
  66                                 ball_x, ball_y,
  67                                 BALL_WIDTH,
  68                                 BALL_HEIGHT,
  69                                 1,
  70                                 AO_XOR);
  71                         ao_text(&ao_vga_bitmap,
  72                                 ball_x, ball_y - 10,
  73                                 "Hello, Bdale!",
  74                                 1, AO_XOR);
  75                         ao_line(&ao_vga_bitmap,
  76                                 -100, -100, ball_x*2, ball_y*2,
  77                                 1, AO_XOR);
  78                         if (!ball_enable)
  79                                 break;
  80                         ball_x += ball_dx;
  81                         ball_y += ball_dy;
  82                         if (ball_x + BALL_WIDTH > AO_VGA_WIDTH) {
  83                                 ball_x = AO_VGA_WIDTH - BALL_WIDTH;
  84                                 ball_dx = -ball_dx;
  85                         }
  86                         if (ball_x < 0) {
  87                                 ball_x = -ball_x;
  88                                 ball_dx = -ball_dx;
  89                         }
  90                         if (ball_y + BALL_HEIGHT > AO_VGA_HEIGHT) {
  91                                 ball_y = AO_VGA_HEIGHT - BALL_HEIGHT;
  92                                 ball_dy = -ball_dy;
  93                         }
  94                         if (ball_y < 0) {
  95                                 ball_y = -ball_y;
  96                                 ball_dy = -ball_dy;
  97                         }
  98                 }
  99         }
 100 }
 101
 102 static void
 103 ao_fb_init(void)
 104 {
 105         ao_rect(&ao_vga_bitmap,
 106                 0, 0, AO_VGA_WIDTH, AO_VGA_HEIGHT,
 107                 1, AO_COPY);
 108
 109         ao_rect(&ao_vga_bitmap,
 110                 10, 10, 10, 10,
 111                 0, AO_COPY);
 112
 113         ao_rect(&ao_vga_bitmap,
 114                 AO_VGA_WIDTH - 20, 10, 10, 10,
 115                 0, AO_COPY);
 116
 117         ao_rect(&ao_vga_bitmap,
 118                 10, AO_VGA_HEIGHT - 20, 10, 10,
 119                 0, AO_COPY);
 120
 121         ao_rect(&ao_vga_bitmap,
 122                 AO_VGA_WIDTH - 20, AO_VGA_HEIGHT - 20, 10, 10,
 123                 0, AO_COPY);
 124
 125         ao_text(&ao_vga_bitmap,
 126                 20, 100,
 127                 "Hello, Bdale!",
 128                 0, AO_COPY);
 129
 130         ao_text(&ao_vga_bitmap,
 131                 1, ao_font.ascent,
 132                 "UL",
 133                 0, AO_COPY);
 134
 135         ao_text(&ao_vga_bitmap,
 136                 1, AO_VGA_HEIGHT - ao_font.descent,
 137                 "BL",
 138                 0, AO_COPY);
 139 }
 140
 141 static void
 142 ao_video_toggle(void)
 143 {
 144         ao_cmd_decimal();
 145         if (ao_cmd_lex_i)
 146                 ao_fb_init();
 147         ao_vga_enable(ao_cmd_lex_i);
 148 }
 149
 150 static void
 151 ao_ball_toggle(void)
 152 {
 153         ao_cmd_decimal();
 154         ball_enable = ao_cmd_lex_i;
 155         ao_wakeup(&ball_enable);
 156 }
 157
 158 static void
 159 ao_ps2_read_keys(void)
 160 {
 161         char    c;
 162
 163         for (;;) {
 164                 c = ao_ps2_getchar();
 165                 printf("%02x %c\n", c, ' ' <= c && c < 0x7f ? c : '.');
 166                 flush();
 167                 if (c == ' ')
 168                         break;
 169         }
 170 }
 171
 172 static void
 173 ao_console_send(void)
 174 {
 175         char    c;
 176
 177         while ((c = getchar()) != '~') {
 178                 ao_console_putchar(c);
 179                 flush();
 180         }
 181 }
 182
 183 __code struct ao_cmds ao_demo_cmds[] = {
 184         { ao_video_toggle, "V\0Toggle video" },
 185         { ao_ball_toggle, "B\0Toggle ball" },
 186         { ao_ps2_read_keys, "K\0Read keys from keyboard" },
 187         { ao_console_send, "C\0Send data to console, end with ~" },
 188         { 0, NULL }
 189 };
 190
 191 int
 192 main(void)
 193 {
 194         ao_clock_init();
 195
 196 #if HAS_STACK_GUARD
 197         ao_mpu_init();
 198 #endif
 199
 200         ao_task_init();
 201         ao_serial_init();
 202         ao_timer_init();
 203
 204         ao_spi_init();
 205         ao_dma_init();
 206         ao_exti_init();
 207
 208         ao_ps2_init();
 209         ao_vga_init();
 210         ao_console_init();
 211
 212         ao_cmd_init();
 213
 214         ao_usb_init();
 215
 216         ao_config_init();
 217
 218         ao_add_task(&ball_task, ao_ball, "ball");
 219         ao_cmd_register(&ao_demo_cmds[0]);
 220
 221         ao_start_scheduler();
 222         return 0;
 223 }