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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 #include <ao_sdcard.h>
  29 #include <ao_fat.h>
  30 #include <ao_lisp.h>
  31
  32 struct ao_task ball_task;
  33
  34 #define BALL_WIDTH      5
  35 #define BALL_HEIGHT     5
  36
  37 static int      ball_x;
  38 static int      ball_y;
  39 static int      ball_dx, ball_dy;
  40
  41 uint8_t         ball_enable;
  42
  43 void
  44 ao_ball(void)
  45 {
  46         ball_dx = 1;
  47         ball_dy = 1;
  48         ball_x = 0;
  49         ball_y = 0;
  50         for (;;) {
  51                 while (!ball_enable)
  52                         ao_sleep(&ball_enable);
  53                 for (;;) {
  54                         ao_line(&ao_vga_bitmap,
  55                                 -100, -100, ball_x*2, ball_y*2,
  56                                 1, AO_XOR);
  57                         ao_text(&ao_vga_bitmap,
  58                                 ball_x, ball_y - 10,
  59                                 "Hello, Bdale!",
  60                                 1, AO_XOR);
  61                         ao_rect(&ao_vga_bitmap,
  62                                 ball_x, ball_y,
  63                                 BALL_WIDTH,
  64                                 BALL_HEIGHT,
  65                                 1,
  66                                 AO_XOR);
  67                         ao_delay(AO_MS_TO_TICKS(10));
  68                         ao_rect(&ao_vga_bitmap,
  69                                 ball_x, ball_y,
  70                                 BALL_WIDTH,
  71                                 BALL_HEIGHT,
  72                                 1,
  73                                 AO_XOR);
  74                         ao_text(&ao_vga_bitmap,
  75                                 ball_x, ball_y - 10,
  76                                 "Hello, Bdale!",
  77                                 1, AO_XOR);
  78                         ao_line(&ao_vga_bitmap,
  79                                 -100, -100, ball_x*2, ball_y*2,
  80                                 1, AO_XOR);
  81                         if (!ball_enable)
  82                                 break;
  83                         ball_x += ball_dx;
  84                         ball_y += ball_dy;
  85                         if (ball_x + BALL_WIDTH > AO_VGA_WIDTH) {
  86                                 ball_x = AO_VGA_WIDTH - BALL_WIDTH;
  87                                 ball_dx = -ball_dx;
  88                         }
  89                         if (ball_x < 0) {
  90                                 ball_x = -ball_x;
  91                                 ball_dx = -ball_dx;
  92                         }
  93                         if (ball_y + BALL_HEIGHT > AO_VGA_HEIGHT) {
  94                                 ball_y = AO_VGA_HEIGHT - BALL_HEIGHT;
  95                                 ball_dy = -ball_dy;
  96                         }
  97                         if (ball_y < 0) {
  98                                 ball_y = -ball_y;
  99                                 ball_dy = -ball_dy;
 100                         }
 101                 }
 102         }
 103 }
 104
 105 static void
 106 ao_fb_init(void)
 107 {
 108         ao_rect(&ao_vga_bitmap,
 109                 0, 0, AO_VGA_WIDTH, AO_VGA_HEIGHT,
 110                 1, AO_COPY);
 111
 112         ao_rect(&ao_vga_bitmap,
 113                 10, 10, 10, 10,
 114                 0, AO_COPY);
 115
 116         ao_rect(&ao_vga_bitmap,
 117                 AO_VGA_WIDTH - 20, 10, 10, 10,
 118                 0, AO_COPY);
 119
 120         ao_rect(&ao_vga_bitmap,
 121                 10, AO_VGA_HEIGHT - 20, 10, 10,
 122                 0, AO_COPY);
 123
 124         ao_rect(&ao_vga_bitmap,
 125                 AO_VGA_WIDTH - 20, AO_VGA_HEIGHT - 20, 10, 10,
 126                 0, AO_COPY);
 127
 128         ao_text(&ao_vga_bitmap,
 129                 20, 100,
 130                 "Hello, Bdale!",
 131                 0, AO_COPY);
 132
 133         ao_text(&ao_vga_bitmap,
 134                 1, ao_font.ascent,
 135                 "UL",
 136                 0, AO_COPY);
 137
 138         ao_text(&ao_vga_bitmap,
 139                 1, AO_VGA_HEIGHT - ao_font.descent,
 140                 "BL",
 141                 0, AO_COPY);
 142 }
 143
 144 static void
 145 ao_video_toggle(void)
 146 {
 147         ao_cmd_decimal();
 148         if (ao_cmd_lex_i)
 149                 ao_fb_init();
 150         ao_vga_enable(ao_cmd_lex_i);
 151 }
 152
 153 static void
 154 ao_ball_toggle(void)
 155 {
 156         ao_cmd_decimal();
 157         ball_enable = ao_cmd_lex_i;
 158         ao_wakeup(&ball_enable);
 159 }
 160
 161 static void
 162 ao_ps2_read_keys(void)
 163 {
 164         char    c;
 165
 166         for (;;) {
 167                 c = ao_ps2_getchar();
 168                 printf("%02x %c\n", c, ' ' <= c && c < 0x7f ? c : '.');
 169                 flush();
 170                 if (c == ' ')
 171                         break;
 172         }
 173 }
 174
 175 static void
 176 ao_console_send(void)
 177 {
 178         char    c;
 179
 180         while ((c = getchar()) != '~') {
 181                 ao_console_putchar(c);
 182                 flush();
 183         }
 184 }
 185
 186 static void lisp_cmd() {
 187         ao_lisp_read_eval_print();
 188 }
 189
 190 static void
 191 ao_serial_blather(void)
 192 {
 193         char c;
 194
 195         while ((c = getchar()) != '~') {
 196                 ao_serial1_putchar(c);
 197                 ao_serial2_putchar(c);
 198         }
 199 }
 200
 201 __code struct ao_cmds ao_demo_cmds[] = {
 202         { ao_video_toggle, "V\0Toggle video" },
 203         { ao_ball_toggle, "B\0Toggle ball" },
 204         { ao_ps2_read_keys, "K\0Read keys from keyboard" },
 205         { ao_console_send, "C\0Send data to console, end with ~" },
 206         { ao_serial_blather, "S\0Blather on serial ports briefly" },
 207         { lisp_cmd, "l\0Run lisp interpreter" },
 208         { 0, NULL }
 209 };
 210
 211 int
 212 main(void)
 213 {
 214         ao_clock_init();
 215
 216 #if HAS_STACK_GUARD
 217         ao_mpu_init();
 218 #endif
 219
 220         ao_task_init();
 221         ao_serial_init();
 222         ao_timer_init();
 223
 224         ao_spi_init();
 225         ao_dma_init();
 226         ao_exti_init();
 227
 228         ao_sdcard_init();
 229         ao_fat_init();
 230
 231         ao_ps2_init();
 232         ao_vga_init();
 233         ao_console_init();
 234
 235         ao_cmd_init();
 236
 237         ao_usb_init();
 238
 239         ao_config_init();
 240
 241         ao_add_task(&ball_task, ao_ball, "ball");
 242         ao_cmd_register(&ao_demo_cmds[0]);
 243
 244         ao_start_scheduler();
 245         return 0;
 246 }