bootloader/e200.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Daniel Stenberg
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "config.h"
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include "cpu.h"
  25 #include "system.h"
  26 #include "lcd.h"
  27 #include "kernel.h"
  28 #include "thread.h"
  29 #include "ata.h"
  30 #include "fat.h"
  31 #include "disk.h"
  32 #include "font.h"
  33 #include "adc.h"
  34 #include "backlight.h"
  35 #include "panic.h"
  36 #include "power.h"
  37 #include "file.h"
  38
  39 static inline void blink(void)
  40 {
  41     volatile unsigned int* ptr;
  42     int i;
  43     ptr = (volatile unsigned int*)0x70000020;
  44
  45     *ptr &= ~(1 << 13);
  46     for(i = 0; i < 0xfffff; i++)
  47     {
  48     }
  49     *ptr |= (1 << 13);
  50     for(i = 0; i < 0xfffff; i++)
  51     {
  52     }
  53 }
  54
  55 static inline void slow_blink(void)
  56 {
  57     volatile unsigned int* ptr;
  58     int i;
  59     ptr = (volatile unsigned int*)0x70000020;
  60
  61     *ptr &= ~(1 << 13);
  62     for(i = 0; i < (0xfffff); i++)
  63     {
  64     }
  65     for(i = 0; i < (0xfffff); i++)
  66     {
  67     }
  68     for(i = 0; i < (0xfffff); i++)
  69     {
  70     }
  71
  72     *ptr |= (1 << 13);
  73     for(i = 0; i < (0xfffff); i++)
  74     {
  75     }
  76     for(i = 0; i < (0xfffff); i++)
  77     {
  78     }
  79     for(i = 0; i < (0xfffff); i++)
  80     {
  81     }
  82 }
  83
  84 static inline unsigned long get_pc(void)
  85 {
  86     unsigned long pc;
  87     asm volatile (
  88         "mov %0, pc\n"
  89         : "=r"(pc)
  90     );
  91     return pc;
  92 }
  93
  94 /* These functions are present in the firmware library, but we reimplement
  95    them here because the originals do a lot more than we want */
  96
  97 void reset_poweroff_timer(void)
  98 {
  99 }
 100
 101 int dbg_ports(void)
 102 {
 103     unsigned int gpio_a, gpio_b, gpio_c, gpio_d;
 104     unsigned int gpio_e, gpio_f, gpio_g, gpio_h;
 105     unsigned int gpio_i, gpio_j, gpio_k, gpio_l;
 106
 107     char buf[128];
 108     int line;
 109
 110     lcd_setmargins(0, 0);
 111     lcd_clear_display();
 112     lcd_setfont(FONT_SYSFIXED);
 113
 114     while(1)
 115     {
 116         gpio_a = GPIOA_INPUT_VAL;
 117         gpio_b = GPIOB_INPUT_VAL;
 118         gpio_c = GPIOC_INPUT_VAL;
 119
 120         gpio_g = GPIOG_INPUT_VAL;
 121         gpio_h = GPIOH_INPUT_VAL;
 122         gpio_i = GPIOI_INPUT_VAL;
 123
 124         line = 0;
 125         snprintf(buf, sizeof(buf), "GPIO_A: %02x GPIO_G: %02x", gpio_a, gpio_g);
 126         lcd_puts(0, line++, buf);
 127         snprintf(buf, sizeof(buf), "GPIO_B: %02x GPIO_H: %02x", gpio_b, gpio_h);
 128         lcd_puts(0, line++, buf);
 129         snprintf(buf, sizeof(buf), "GPIO_C: %02x GPIO_I: %02x", gpio_c, gpio_i);
 130         lcd_puts(0, line++, buf);
 131         line++;
 132
 133         gpio_d = GPIOD_INPUT_VAL;
 134         gpio_e = GPIOE_INPUT_VAL;
 135         gpio_f = GPIOF_INPUT_VAL;
 136
 137         gpio_j = GPIOJ_INPUT_VAL;
 138         gpio_k = GPIOK_INPUT_VAL;
 139         gpio_l = GPIOL_INPUT_VAL;
 140
 141         snprintf(buf, sizeof(buf), "GPIO_D: %02x GPIO_J: %02x", gpio_d, gpio_j);
 142         lcd_puts(0, line++, buf);
 143         snprintf(buf, sizeof(buf), "GPIO_E: %02x GPIO_K: %02x", gpio_e, gpio_k);
 144         lcd_puts(0, line++, buf);
 145         snprintf(buf, sizeof(buf), "GPIO_F: %02x GPIO_L: %02x", gpio_f, gpio_l);
 146         lcd_puts(0, line++, buf);
 147         line++;
 148         snprintf(buf, sizeof(buf), "ADC_1: %02x", adc_read(ADC_0));
 149         lcd_puts(0, line++, buf);
 150         snprintf(buf, sizeof(buf), "ADC_2: %02x", adc_read(ADC_1));
 151         lcd_puts(0, line++, buf);
 152         snprintf(buf, sizeof(buf), "ADC_3: %02x", adc_read(ADC_2));
 153         lcd_puts(0, line++, buf);
 154         snprintf(buf, sizeof(buf), "ADC_4: %02x", adc_read(ADC_3));
 155         lcd_puts(0, line++, buf);
 156         lcd_update();
 157     }
 158     return 0;
 159 }
 160
 161 void mpeg_stop(void)
 162 {
 163 }
 164
 165 void usb_acknowledge(void)
 166 {
 167 }
 168
 169 void usb_wait_for_disconnect(void)
 170 {
 171 }
 172
 173 void sys_poweroff(void)
 174 {
 175 }
 176
 177 void system_reboot(void)
 178 {
 179
 180 }
 181
 182 void main(void)
 183 {
 184     kernel_init();
 185     adc_init();
 186     lcd_init_device();
 187
 188     dbg_ports();
 189 }
 190