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