| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2007 by Dave Chapman |
| * |
| * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing |
| * |
| * All files in this archive are subject to the GNU General Public License. |
| * See the file COPYING in the source tree root for full license agreement. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| #include "config.h" |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include "cpu.h" |
| #include "system.h" |
| #include "lcd.h" |
| #include "kernel.h" |
| #include "thread.h" |
| #include "ata.h" |
| #include "fat.h" |
| #include "disk.h" |
| #include "font.h" |
| #include "button.h" |
| #include "adc.h" |
| #include "adc-target.h" |
| #include "backlight-target.h" |
| #include "panic.h" |
| #include "power.h" |
| #include "file.h" |
| #include "common.h" |
| |
| #if defined(COWON_D2) |
| #include "i2c.h" |
| #define LOAD_ADDRESS 0x20000000 /* DRAM_START */ |
| #endif |
| |
| char version[] = APPSVERSION; |
| |
| extern int line; |
| |
| #define MAX_LOAD_SIZE (8*1024*1024) /* Arbitrary, but plenty. */ |
| |
| void* main(void) |
| { |
| int button; |
| int power_count = 0; |
| int count = 0; |
| bool do_power_off = false; |
| |
| #if defined(COWON_D2) && defined(TCCBOOT) |
| int rc; |
| unsigned char* loadbuffer = (unsigned char*)LOAD_ADDRESS; |
| #endif |
| |
| power_init(); |
| system_init(); |
| lcd_init(); |
| |
| #if defined(COWON_D2) |
| kernel_init(); |
| #endif |
| |
| adc_init(); |
| button_init(); |
| backlight_init(); |
| |
| font_init(); |
| lcd_setfont(FONT_SYSFIXED); |
| |
| _backlight_on(); |
| |
| /* Only load the firmware if TCCBOOT is defined - this ensures SDRAM_START is |
| available for loading the firmware. Otherwise display the debug screen. */ |
| #if defined(COWON_D2) && defined(TCCBOOT) |
| printf("Rockbox boot loader"); |
| printf("Version %s", version); |
| |
| printf("ATA"); |
| rc = ata_init(); |
| if(rc) |
| { |
| reset_screen(); |
| error(EATA, rc); |
| } |
| |
| printf("mount"); |
| rc = disk_mount_all(); |
| if (rc<=0) |
| { |
| error(EDISK,rc); |
| } |
| |
| rc = load_firmware(loadbuffer, BOOTFILE, MAX_LOAD_SIZE); |
| |
| if (rc < 0) |
| { |
| error(EBOOTFILE,rc); |
| } |
| else if (rc == EOK) |
| { |
| int(*kernel_entry)(void); |
| |
| kernel_entry = (void*) loadbuffer; |
| rc = kernel_entry(); |
| } |
| #else |
| |
| while(!do_power_off) { |
| line = 0; |
| printf("Hello World!"); |
| |
| button = button_read_device(); |
| |
| /* Power-off if POWER button has been held for a long time |
| This loop is currently running at about 100 iterations/second |
| */ |
| if (button & POWEROFF_BUTTON) { |
| power_count++; |
| if (power_count > 200) |
| do_power_off = true; |
| } else { |
| power_count = 0; |
| } |
| |
| printf("Btn: 0x%08x",button); |
| |
| #if defined(COWON_D2) |
| int i; |
| |
| printf("GPIOA: 0x%08x",GPIOA); |
| printf("GPIOB: 0x%08x",GPIOB); |
| printf("GPIOC: 0x%08x",GPIOC); |
| printf("GPIOD: 0x%08x",GPIOD); |
| printf("GPIOE: 0x%08x",GPIOE); |
| |
| for (i = 0; i<4; i++) |
| { |
| printf("ADC%d: 0x%04x",i,adc_read(i)); |
| } |
| |
| /* TODO: Move this stuff out to a touchscreen driver and establish |
| how such a beast is going to work. Since it needs I2C read/write, |
| it can't easily go on an interrupt-based tick task. */ |
| { |
| unsigned char buf[] = { 0x2f, (0xE<<1) | 1, /* ADC start for X+Y */ |
| 0, 0, 0 }; |
| int x,y; |
| i2c_write(0x10, buf, 2); |
| i2c_readmem(0x10, 0x2e, buf, 5); |
| x = (buf[2] << 2) | (buf[3] & 3); |
| y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2); |
| printf("X: 0x%03x Y: 0x%03x",x,y); |
| |
| x = (x*LCD_WIDTH) / 1024; |
| y = (y*LCD_HEIGHT) / 1024; |
| lcd_hline(x-5, x+5, y); |
| lcd_vline(x, y-5, y+5); |
| |
| buf[0] = 0x2f; |
| buf[1] = (0xF<<1) | 1; /* ADC start for P1+P2 */ |
| i2c_write(0x10, buf, 2); |
| i2c_readmem(0x10, 0x2e, buf, 5); |
| x = (buf[2] << 2) | (buf[3] & 3); |
| y = (buf[4] << 2) | ((buf[3] & 0xC) >> 2); |
| printf("P1: 0x%03x P2: 0x%03x",x,y); |
| } |
| #endif |
| |
| count++; |
| printf("Count: %d",count); |
| } |
| |
| lcd_clear_display(); |
| line = 0; |
| printf("POWER-OFF"); |
| |
| /* Power-off */ |
| power_off(); |
| |
| printf("(NOT) POWERED OFF"); |
| #endif |
| |
| return 0; |
| } |
| |
| /* These functions are present in the firmware library, but we reimplement |
| them here because the originals do a lot more than we want */ |
| void usb_acknowledge(void) |
| { |
| } |
| |
| void usb_wait_for_disconnect(void) |
| { |
| } |