75cb8ba8a4
This only required a minor patch to the usb-designware driver due to DMA requiring physical addresses -- on the X1000, these differ from virtual addresses so we have to do the usual conversion. Both the mass storage and HID drivers work, but there are a few issues so this can't be considered 100% stable yet. - Mass storage might not be detected properly on insertion, and USB has to be replugged before it shows up - HID driver may occasionally panic or hang the machine Change-Id: Ia3ce7591d5928ec7cbca7953abfef01bdbd873ef
167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2021 Aidan MacDonald
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "system.h"
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#include "kernel/kernel-internal.h"
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#include "i2c.h"
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#include "power.h"
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#include "lcd.h"
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#include "font.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "button.h"
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#include "storage.h"
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#include "file_internal.h"
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#include "disk.h"
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#include "usb.h"
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#include "rb-loader.h"
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#include "loader_strerror.h"
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#include "version.h"
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/* Load address where the binary needs to be placed */
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extern unsigned char loadaddress[];
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/* Fixed buffer to contain the loaded binary in memory */
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extern unsigned char loadbuffer[];
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extern unsigned char loadbufferend[];
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#define MAX_LOAD_SIZE (loadbufferend - loadbuffer)
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void exec(void* dst, const void* src, int bytes)
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__attribute__((noreturn, section(".icode")));
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void exec(void* dst, const void* src, int bytes)
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{
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memcpy(dst, src, bytes);
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commit_discard_idcache();
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__asm__ __volatile__ ("jr %0\n"
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"nop\n"
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:: "r"(dst));
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__builtin_unreachable();
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}
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static bool lcd_inited = false;
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static bool usb_inited = false;
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static void init_lcd(void)
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{
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if(lcd_inited)
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return;
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lcd_init();
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font_init();
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lcd_setfont(FONT_SYSFIXED);
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/* Clear screen before turning backlight on, otherwise we might
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* display random garbage on the screen */
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lcd_clear_display();
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lcd_update();
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backlight_init();
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lcd_inited = true;
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}
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static void do_splash2(int delay, const char* msg, const char* msg2)
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{
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init_lcd();
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lcd_clear_display();
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lcd_putsxy((LCD_WIDTH - (SYSFONT_WIDTH * strlen(msg))) / 2,
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(LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg);
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if(msg2) {
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lcd_putsxy((LCD_WIDTH - (SYSFONT_WIDTH * strlen(msg2))) / 2,
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(LCD_HEIGHT + 2*SYSFONT_HEIGHT) / 2, msg2);
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}
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lcd_putsxy((LCD_WIDTH - (SYSFONT_WIDTH * strlen(rbversion))) / 2,
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(LCD_HEIGHT - SYSFONT_HEIGHT), rbversion);
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lcd_update();
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sleep(delay);
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}
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static void do_splash(int delay, const char* msg)
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{
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do_splash2(delay, msg, NULL);
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}
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static void do_usb(void)
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{
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if(!usb_inited) {
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usb_init();
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usb_start_monitoring();
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usb_inited = true;
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}
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do_splash(0, "Waiting for USB");
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while(button_get(true) != SYS_USB_CONNECTED);
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do_splash(0, "USB mode");
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usb_acknowledge(SYS_USB_CONNECTED_ACK);
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while(button_get(true) != SYS_USB_DISCONNECTED);
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do_splash(3*HZ, "USB disconnected");
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}
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void main(void)
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{
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system_init();
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kernel_init();
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i2c_init();
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power_init();
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button_init();
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enable_irq();
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if(storage_init() < 0) {
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do_splash(3*HZ, "Failed to init storage");
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power_off();
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}
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filesystem_init();
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int loadsize = 0;
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do {
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if(!storage_present(0)) {
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do_splash(HZ, "Insert SD card");
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continue;
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}
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if(disk_mount_all() <= 0) {
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do_splash(5*HZ, "Cannot mount filesystem");
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do_usb();
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continue;
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}
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loadsize = load_firmware(loadbuffer, BOOTFILE, MAX_LOAD_SIZE);
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if(loadsize <= 0) {
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do_splash2(5*HZ, "Error loading Rockbox",
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loader_strerror(loadsize));
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do_usb();
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continue;
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}
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} while(loadsize <= 0);
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if(lcd_inited)
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backlight_hw_off();
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disable_irq();
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exec(loadaddress, loadbuffer, loadsize);
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}
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