rockbox/bootloader/x1000/utils.c
Aidan MacDonald 5bdb2fccdb x1000: bootloader: refactor usb handling
Drop init_usb(), instead initialize USB early in the main function
so the hardware is placed into a known good state after a USB boot.
The impact on boot time should be minimal.

Change-Id: I9774ddfc2c27811363bdb0c54cb0e57b5ca59d73
2022-03-12 18:25:10 +00:00

70 lines
2.2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2022 Aidan MacDonald
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "x1000bootloader.h"
#include "storage.h"
#include "button.h"
#include "kernel.h"
#include "usb.h"
/* Set to true if a SYS_USB_CONNECTED event is seen
* Set to false if a SYS_USB_DISCONNECTED event is seen
* Handled by the gui code since that's how events are delivered
* TODO: this is an ugly kludge */
bool is_usb_connected = false;
/* this is both incorrect and incredibly racy... */
int check_disk(bool wait)
{
if(storage_present(IF_MD(0)))
return DISK_PRESENT;
if(!wait)
return DISK_ABSENT;
while(!storage_present(IF_MD(0))) {
splash2(0, "Insert SD card", "Press " BL_QUIT_NAME " to cancel");
if(get_button(HZ/4) == BL_QUIT)
return DISK_CANCELED;
}
/* a lie intended to give time for mounting the disk in the background */
splash(HZ, "Scanning disk");
return DISK_PRESENT;
}
void usb_mode(void)
{
if(!is_usb_connected)
splash2(0, "Waiting for USB", "Press " BL_QUIT_NAME " to cancel");
while(!is_usb_connected)
if(get_button(TIMEOUT_BLOCK) == BL_QUIT)
return;
splash(0, "USB mode");
usb_acknowledge(SYS_USB_CONNECTED_ACK);
while(is_usb_connected)
get_button(TIMEOUT_BLOCK);
splash(3*HZ, "USB disconnected");
}