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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: $
*
* Copyright (C) 2011 by Tomasz Moń
*
* 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 <sys/types.h>
#include "config.h"
#include "cpu.h"
#include "string.h"
#include "kernel.h"
#include "system.h"
#include "system-target.h"
#include "lcd.h"
#include "lcd-target.h"
#include "avr-sansaconnect.h"
extern bool lcd_on; /* lcd-memframe.c */
#if defined(HAVE_LCD_SLEEP)
void lcd_sleep(void)
{
if (lcd_on)
{
lcd_on = false;
avr_hid_lcm_sleep();
sleep(HZ/20);
/* disable video encoder */
bitclr16(&IO_VID_ENC_VMOD, 0x01);
sleep(HZ/20);
/* disable video encoder clock */
bitclr16(&IO_CLK_MOD1, CLK_MOD1_VENC);
}
}
void lcd_awake(void)
{
if (!lcd_on)
{
lcd_on = true;
/* enable video encoder clock */
bitset16(&IO_CLK_MOD1, CLK_MOD1_VENC);
/* enable video encoder */
bitset16(&IO_VID_ENC_VMOD, 0x01);
avr_hid_lcm_wake();
send_event(LCD_EVENT_ACTIVATION, NULL);
lcd_update();
}
}
#endif
void lcd_init_device(void)
{
unsigned int addr;
/* Disable Video Encoder clock */
bitclr16(&IO_CLK_MOD1, CLK_MOD1_VENC);
/* configure GIO39, GIO34 as outputs */
IO_GIO_DIR2 &= ~((1 << 7) /* GIO39 */ | (1 << 2) /* GIO34 */);
IO_GIO_FSEL3 = (IO_GIO_FSEL3 & ~(0x300F)) |
(0x1000) /* GIO39 - FIELD_VENC */ |
(0x4); /* GIO34 - PWM1 (brightness control) */
/* OSD Clock = VENC Clock /2,
CCD clock PCLK,
VENC Clock from PLLA */
IO_CLK_SEL1 = 0x3;
/* Set VENC Clock Division to 11
OF bootloader sets division to 8, vmlinux sets it to 11 */
IO_CLK_DIV3 = (IO_CLK_DIV3 & ~(0x1F00)) | 0xB00;
/* Enable DAC and OSD clocks */
bitset16(&IO_CLK_MOD1, CLK_MOD1_DAC | CLK_MOD1_OSD);
/* magic values based on OF bootloader initialization */
IO_VID_ENC_VMOD = 0x2010;
IO_VID_ENC_VDPRO = 0x80;
IO_VID_ENC_HSPLS = 0x4;
IO_VID_ENC_HINT = 0x4B0;
IO_VID_ENC_HSTART = 0x88;
IO_VID_ENC_HVALID = 0x3C0;
IO_VID_ENC_HSDLY = 0;
IO_VID_ENC_VSPLS = 0x2;
IO_VID_ENC_VINT = 0x152;
IO_VID_ENC_VSTART = 0x6;
IO_VID_ENC_VVALID = 0x140;
IO_VID_ENC_VSDLY = 0;
IO_VID_ENC_DCLKCTL = 0x3;
IO_VID_ENC_DCLKPTN0 = 0xC;
IO_VID_ENC_VDCTL = 0x6000;
IO_VID_ENC_SYNCTL = 0x2;
IO_VID_ENC_LCDOUT = 0x101;
IO_VID_ENC_VMOD = 0x2011;
/* Copy Rockbox frame buffer to the second framebuffer */
lcd_update();
avr_hid_sync();
avr_hid_lcm_power_on();
/* set framebuffer address - OF sets RAM start address to 0x1000000 */
addr = ((int)FRAME-CONFIG_SDRAM_START)/32;
IO_OSD_OSDWINADH = addr >> 16;
IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
IO_OSD_BASEPX = 0x44;
IO_OSD_BASEPY = 0x6;
IO_OSD_OSDWIN0XP = 0;
IO_OSD_OSDWIN0YP = 0;
IO_OSD_OSDWIN0XL = LCD_WIDTH*2; /* OF bootloader sets 480 */
IO_OSD_OSDWIN0YL = LCD_HEIGHT; /* OF bootloader sets 320 */
IO_OSD_OSDWIN0OFST = 0xF;
IO_OSD_OSDWINMD0 = 0x25FB;/* OF bootloader sets 25C3,
vmlinux changes this to 0x25FB */
IO_OSD_VIDWINMD = 0; /* disable video windows (OF sets 0x03) */
IO_OSD_OSDWINMD1 = 0; /* disable OSD window 1 */
/* Enable DAC, Video Encoder and OSD clocks */
bitset16(&IO_CLK_MOD1, CLK_MOD1_DAC | CLK_MOD1_VENC | CLK_MOD1_OSD);
/* Enable Video Encoder - RGB666, custom timing */
IO_VID_ENC_VMOD = 0x2011;
avr_hid_lcm_wake();
lcd_on = true;
}
void lcd_set_contrast(int val) {
(void) val;
// TODO:
}
void lcd_set_invert_display(bool yesno) {
(void) yesno;
// TODO:
}
void lcd_set_flip(bool yesno) {
(void) yesno;
// TODO:
}
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