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/***************************************************************************
* __________ __ ___
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50
* Copyright (C) 2014 by Mario Basister: iBasso DX90 port
* Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features
* Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features
*
* 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 <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <linux/fb.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "config.h"
#include "debug.h"
#include "events.h"
#include "panic.h"
#include "debug-ibasso.h"
#include "lcd-target.h"
#include "sysfs-ibasso.h"
fb_data *dev_fb = 0;
/* Framebuffer device handle. */
static int dev_fd = 0;
void lcd_init_device(void)
{
TRACE;
dev_fd = open("/dev/graphics/fb0", O_RDWR);
if(dev_fd == -1)
{
DEBUGF("ERROR %s: open failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
exit(errno);
}
/* Get the changeable information. */
struct fb_var_screeninfo vinfo;
if(ioctl(dev_fd, FBIOGET_VSCREENINFO, &vinfo) < 0)
{
DEBUGF("ERROR %s: ioctl FBIOGET_VSCREENINFO failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
exit(errno);
}
DEBUGF("DEBUG %s: bits_per_pixel: %u, width: %u, height: %u.", __func__, vinfo.bits_per_pixel, vinfo.width, vinfo.height);
/*
Framebuffer does not fit the screen, a bug of iBassos Firmware, not Rockbox.
Cannot be solved with parameters.
*/
/*vinfo.bits_per_pixel = LCD_DEPTH;
vinfo.xres = LCD_WIDTH;
vinfo.xres_virtual = LCD_WIDTH;
vinfo.width = LCD_WIDTH;
vinfo.yres = LCD_HEIGHT;
vinfo.yres_virtual = LCD_HEIGHT;
vinfo.height = LCD_HEIGHT;
vinfo.activate = FB_ACTIVATE_NOW;
if(ioctl(dev_fd, FBIOPUT_VSCREENINFO, &vinfo) == -1)
{
DEBUGF("ERROR %s: ioctl FBIOPUT_VSCREENINFO failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
exit(EXIT_FAILURE);
}*/
/* Sanity check: Does framebuffer config match Rockbox config? */
size_t screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;
if(screensize != FRAMEBUFFER_SIZE)
{
DEBUGF("ERROR %s: Screen size does not match config: %d != %d.", __func__, screensize, FRAMEBUFFER_SIZE);
exit(EXIT_FAILURE);
}
/* Map the device to memory. */
dev_fb = mmap(0, FRAMEBUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, dev_fd, 0);
if(dev_fb == MAP_FAILED)
{
DEBUGF("ERROR %s: mmap failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
exit(errno);
}
/* Activate Rockbox LCD. */
lcd_enable(true);
}
void lcd_shutdown(void)
{
TRACE;
lcd_set_active(false);
munmap(dev_fb, FRAMEBUFFER_SIZE);
close(dev_fd) ;
}
/*
Left as reference. Unblanking does not work as expected, will not enable LCD after a few
seconds of power down.
Instead the backlight power is toggled.
*/
/*void lcd_power_on(void)
{
TRACE;
if(ioctl(dev_fd, FBIOBLANK, VESA_NO_BLANKING) == -1)
{
DEBUGF("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
panicf("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
return;
}
lcd_set_active(true);
send_event(LCD_EVENT_ACTIVATION, NULL);
}
void lcd_power_off(void)
{
TRACE;
lcd_set_active(false);
if(ioctl(dev_fd, FBIOBLANK, VESA_POWERDOWN) == -1)
{
DEBUGF("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
panicf("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno);
return;
}
}*/
void lcd_enable(bool on)
{
TRACE;
lcd_set_active(on);
if(on)
{
/*
/sys/power/state
on: Cancel suspend.
*/
if(! sysfs_set_string(SYSFS_POWER_STATE, "on"))
{
DEBUGF("ERROR %s: Can not set power state.", __func__);
}
send_event(LCD_EVENT_ACTIVATION, NULL);
}
}
void lcd_sleep(void)
{
TRACE;
/*
See system_init(). Without suspend blocker und mute prevention this will interrupt playback.
Essentially, we are turning off the touch screen.
/sys/power/state
mem: Suspend to RAM.
*/
if(! sysfs_set_string(SYSFS_POWER_STATE, "mem"))
{
DEBUGF("ERROR %s: Can not set power state.", __func__);
}
}
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