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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 #include <ao_button.h>
  32 #include <ao_event.h>
  33
  34 struct ao_task ball_task;
  35
  36 #define BALL_WIDTH      5
  37 #define BALL_HEIGHT     5
  38
  39 static int      ball_x;
  40 static int      ball_y;
  41 static int      ball_dx, ball_dy;
  42
  43 uint8_t         ball_enable;
  44
  45 void
  46 ao_ball(void)
  47 {
  48         ball_dx = 1;
  49         ball_dy = 1;
  50         ball_x = 0;
  51         ball_y = 0;
  52         for (;;) {
  53                 while (!ball_enable)
  54                         ao_sleep(&ball_enable);
  55                 for (;;) {
  56                         ao_line(&ao_vga_bitmap,
  57                                 -100, -100, ball_x*2, ball_y*2,
  58                                 1, AO_XOR);
  59                         ao_text(&ao_vga_bitmap,
  60                                 ball_x, ball_y - 10,
  61                                 "Hello, Bdale!",
  62                                 1, AO_XOR);
  63                         ao_rect(&ao_vga_bitmap,
  64                                 ball_x, ball_y,
  65                                 BALL_WIDTH,
  66                                 BALL_HEIGHT,
  67                                 1,
  68                                 AO_XOR);
  69                         ao_delay(AO_MS_TO_TICKS(10));
  70                         ao_rect(&ao_vga_bitmap,
  71                                 ball_x, ball_y,
  72                                 BALL_WIDTH,
  73                                 BALL_HEIGHT,
  74                                 1,
  75                                 AO_XOR);
  76                         ao_text(&ao_vga_bitmap,
  77                                 ball_x, ball_y - 10,
  78                                 "Hello, Bdale!",
  79                                 1, AO_XOR);
  80                         ao_line(&ao_vga_bitmap,
  81                                 -100, -100, ball_x*2, ball_y*2,
  82                                 1, AO_XOR);
  83                         if (!ball_enable)
  84                                 break;
  85                         ball_x += ball_dx;
  86                         ball_y += ball_dy;
  87                         if (ball_x + BALL_WIDTH > AO_VGA_WIDTH) {
  88                                 ball_x = AO_VGA_WIDTH - BALL_WIDTH;
  89                                 ball_dx = -ball_dx;
  90                         }
  91                         if (ball_x < 0) {
  92                                 ball_x = -ball_x;
  93                                 ball_dx = -ball_dx;
  94                         }
  95                         if (ball_y + BALL_HEIGHT > AO_VGA_HEIGHT) {
  96                                 ball_y = AO_VGA_HEIGHT - BALL_HEIGHT;
  97                                 ball_dy = -ball_dy;
  98                         }
  99                         if (ball_y < 0) {
 100                                 ball_y = -ball_y;
 101                                 ball_dy = -ball_dy;
 102                         }
 103                 }
 104         }
 105 }
 106
 107 static void
 108 ao_fb_init(void)
 109 {
 110         ao_rect(&ao_vga_bitmap,
 111                 0, 0, AO_VGA_WIDTH, AO_VGA_HEIGHT,
 112                 1, AO_COPY);
 113
 114         ao_rect(&ao_vga_bitmap,
 115                 10, 10, 10, 10,
 116                 0, AO_COPY);
 117
 118         ao_rect(&ao_vga_bitmap,
 119                 AO_VGA_WIDTH - 20, 10, 10, 10,
 120                 0, AO_COPY);
 121
 122         ao_rect(&ao_vga_bitmap,
 123                 10, AO_VGA_HEIGHT - 20, 10, 10,
 124                 0, AO_COPY);
 125
 126         ao_rect(&ao_vga_bitmap,
 127                 AO_VGA_WIDTH - 20, AO_VGA_HEIGHT - 20, 10, 10,
 128                 0, AO_COPY);
 129
 130         ao_text(&ao_vga_bitmap,
 131                 20, 100,
 132                 "Hello, Bdale!",
 133                 0, AO_COPY);
 134
 135         ao_text(&ao_vga_bitmap,
 136                 1, ao_font.ascent,
 137                 "UL",
 138                 0, AO_COPY);
 139
 140         ao_text(&ao_vga_bitmap,
 141                 1, AO_VGA_HEIGHT - ao_font.descent,
 142                 "BL",
 143                 0, AO_COPY);
 144 }
 145
 146 static void
 147 ao_video_toggle(void)
 148 {
 149         ao_cmd_decimal();
 150         if (ao_cmd_lex_i)
 151                 ao_fb_init();
 152         ao_vga_enable(ao_cmd_lex_i);
 153 }
 154
 155 static void
 156 ao_ball_toggle(void)
 157 {
 158         ao_cmd_decimal();
 159         ball_enable = ao_cmd_lex_i;
 160         ao_wakeup(&ball_enable);
 161 }
 162
 163 static void
 164 ao_ps2_read_keys(void)
 165 {
 166         char    c;
 167
 168         for (;;) {
 169                 c = ao_ps2_getchar();
 170                 printf("%02x %c\n", c, ' ' <= c && c < 0x7f ? c : '.');
 171                 flush();
 172                 if (c == ' ')
 173                         break;
 174         }
 175 }
 176
 177 static void
 178 ao_console_send(void)
 179 {
 180         char    c;
 181
 182         while ((c = getchar()) != '~') {
 183                 ao_console_putchar(c);
 184                 flush();
 185         }
 186 }
 187
 188 static void lisp_cmd() {
 189         ao_lisp_read_eval_print();
 190 }
 191
 192 static void
 193 ao_serial_blather(void)
 194 {
 195         char c;
 196
 197         while ((c = getchar()) != '~') {
 198                 ao_serial1_putchar(c);
 199                 ao_serial2_putchar(c);
 200         }
 201 }
 202
 203 __code struct ao_cmds ao_demo_cmds[] = {
 204         { ao_video_toggle, "V\0Toggle video" },
 205         { ao_ball_toggle, "B\0Toggle ball" },
 206         { ao_ps2_read_keys, "K\0Read keys from keyboard" },
 207         { ao_console_send, "C\0Send data to console, end with ~" },
 208         { ao_serial_blather, "S\0Blather on serial ports briefly" },
 209         { lisp_cmd, "l\0Run lisp interpreter" },
 210         { 0, NULL }
 211 };
 212
 213 static struct ao_task event_task;
 214
 215 static void
 216 ao_event_loop(void)
 217 {
 218         for (;;) {
 219                 struct ao_event ev;
 220
 221                 ao_event_get(&ev);
 222                 printf("type %d uint %d tick %d value %d\n",
 223                        ev.type, ev.unit, ev.tick, ev.value);
 224                 flush();
 225         }
 226 }
 227
 228 int
 229 main(void)
 230 {
 231         ao_clock_init();
 232
 233 #if HAS_STACK_GUARD
 234         ao_mpu_init();
 235 #endif
 236
 237         ao_task_init();
 238         ao_serial_init();
 239         ao_timer_init();
 240
 241         ao_spi_init();
 242         ao_dma_init();
 243         ao_exti_init();
 244
 245         ao_sdcard_init();
 246         ao_fat_init();
 247
 248         ao_ps2_init();
 249         ao_vga_init();
 250         ao_console_init();
 251
 252         ao_cmd_init();
 253
 254         ao_usb_init();
 255
 256         ao_button_init();
 257
 258         ao_config_init();
 259
 260         ao_add_task(&ball_task, ao_ball, "ball");
 261         ao_add_task(&event_task, ao_event_loop, "events");
 262         ao_cmd_register(&ao_demo_cmds[0]);
 263
 264         ao_start_scheduler();
 265         return 0;
 266 }