e8a8a1be43
Included are drivers for buttons, backlight, lcd, audio and storage. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31000 a1c6a512-1295-4272-9138-f99709370657
273 lines
7.6 KiB
C
273 lines
7.6 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) 2011 by Tomasz Moń
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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 <sys/types.h>
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#include "config.h"
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#include "cpu.h"
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#include "string.h"
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#include "kernel.h"
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#include "system.h"
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#include "system-target.h"
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#include "lcd.h"
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#include "lcd-target.h"
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#include "avr-sansaconnect.h"
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/* Copies a rectangle from one framebuffer to another. Can be used in
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single transfer mode with width = num pixels, and height = 1 which
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allows a full-width rectangle to be copied more efficiently. */
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extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
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int width, int height);
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static bool lcd_on = true;
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bool lcd_active(void)
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{
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return lcd_on;
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}
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#if defined(HAVE_LCD_SLEEP)
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void lcd_sleep(void)
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{
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if (lcd_on)
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{
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lcd_on = false;
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avr_hid_lcm_sleep();
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sleep(HZ/20);
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/* disable video encoder */
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bitclr16(&IO_VID_ENC_VMOD, 0x01);
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sleep(HZ/20);
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/* disable video encoder clock */
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bitclr16(&IO_CLK_MOD1, CLK_MOD1_VENC);
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}
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}
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void lcd_awake(void)
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{
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if (!lcd_on)
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{
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lcd_on = true;
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/* enable video encoder clock */
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bitset16(&IO_CLK_MOD1, CLK_MOD1_VENC);
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/* enable video encoder */
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bitset16(&IO_VID_ENC_VMOD, 0x01);
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avr_hid_lcm_wake();
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send_event(LCD_EVENT_ACTIVATION, NULL);
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lcd_update();
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}
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}
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#endif
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void lcd_init_device(void)
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{
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unsigned int addr;
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/* Disable Video Encoder clock */
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bitclr16(&IO_CLK_MOD1, CLK_MOD1_VENC);
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/* configure GIO39, GIO34 and GIO33 as outputs */
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IO_GIO_DIR2 &= ~((1 << 7) /* GIO39 */ | (1 << 2) /* GIO34 */ |
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(1 << 1) /* GIO33 */);
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IO_GIO_FSEL3 = (IO_GIO_FSEL3 & ~(0x300F)) |
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(0x1000) /* GIO39 - FIELD_VENC */ |
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(0x3) /* GIO33 - CLKOUT1B (bootloader does this) */ |
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(0x4); /* GIO34 - PWM1 (brightness control) */
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/* OSD Clock = VENC Clock /2,
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CCD clock PCLK,
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VENC Clock from PLLA */
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IO_CLK_SEL1 = 0x3;
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/* Set VENC Clock Division to 11
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OF bootloader sets division to 8, vmlinux sets it to 11 */
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IO_CLK_DIV3 = (IO_CLK_DIV3 & ~(0x1F00)) | 0xB00;
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/* Enable DAC and OSD clocks */
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bitset16(&IO_CLK_MOD1, CLK_MOD1_DAC | CLK_MOD1_OSD);
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/* magic values based on OF bootloader initialization */
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IO_VID_ENC_VMOD = 0x2010;
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IO_VID_ENC_VDPRO = 0x80;
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IO_VID_ENC_HSPLS = 0x4;
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IO_VID_ENC_HINT = 0x4B0;
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IO_VID_ENC_HSTART = 0x88;
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IO_VID_ENC_HVALID = 0x3C0;
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IO_VID_ENC_HSDLY = 0;
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IO_VID_ENC_VSPLS = 0x2;
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IO_VID_ENC_VINT = 0x152;
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IO_VID_ENC_VSTART = 0x6;
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IO_VID_ENC_VVALID = 0x140;
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IO_VID_ENC_VSDLY = 0;
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IO_VID_ENC_DCLKCTL = 0x3;
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IO_VID_ENC_DCLKPTN0 = 0xC;
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IO_VID_ENC_VDCTL = 0x6000;
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IO_VID_ENC_SYNCTL = 0x2;
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IO_VID_ENC_LCDOUT = 0x101;
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IO_VID_ENC_VMOD = 0x2011;
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/* Copy Rockbox frame buffer to the second framebuffer */
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lcd_update();
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avr_hid_lcm_power_on();
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/* set framebuffer address - OF sets RAM start address to 0x1000000 */
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addr = ((int)FRAME-CONFIG_SDRAM_START)/32;
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IO_OSD_OSDWINADH = addr >> 16;
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IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
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IO_OSD_BASEPX = 0x44;
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IO_OSD_BASEPY = 0x6;
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IO_OSD_OSDWIN0XP = 0;
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IO_OSD_OSDWIN0YP = 0;
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IO_OSD_OSDWIN0XL = LCD_WIDTH*2; /* OF bootloader sets 480 */
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IO_OSD_OSDWIN0YL = LCD_HEIGHT; /* OF bootloader sets 320 */
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IO_OSD_OSDWIN0OFST = 0xF;
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IO_OSD_OSDWINMD0 = 0x25FB;/* OF bootloader sets 25C3,
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vmlinux changes this to 0x25FB */
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IO_OSD_VIDWINMD = 0; /* disable video windows (OF sets 0x03) */
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IO_OSD_OSDWINMD1 = 0; /* disable OSD window 1 */
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/* Enable DAC, Video Encoder and OSD clocks */
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bitset16(&IO_CLK_MOD1, CLK_MOD1_DAC | CLK_MOD1_VENC | CLK_MOD1_OSD);
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/* Enable Video Encoder - RGB666, custom timing */
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IO_VID_ENC_VMOD = 0x2011;
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avr_hid_lcm_wake();
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}
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/* Update a fraction of the display. */
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void lcd_update_rect(int x, int y, int width, int height)
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__attribute__ ((section(".icode")));
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void lcd_update_rect(int x, int y, int width, int height)
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{
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register fb_data *dst, *src;
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if (!lcd_on)
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return;
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if ((width | height) < 0)
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return; /* Nothing left to do */
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if (x + width > LCD_WIDTH)
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width = LCD_WIDTH - x; /* Clip right */
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if (x < 0)
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width += x, x = 0; /* Clip left */
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if (y + height > LCD_HEIGHT)
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height = LCD_HEIGHT - y; /* Clip bottom */
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if (y < 0)
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height += y, y = 0; /* Clip top */
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dst = FRAME + LCD_WIDTH*y + x;
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src = &lcd_framebuffer[y][x];
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/* Copy part of the Rockbox framebuffer to the second framebuffer */
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if (width < LCD_WIDTH)
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{
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/* Not full width - do line-by-line */
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lcd_copy_buffer_rect(dst, src, width, height);
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}
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else
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{
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/* Full width - copy as one line */
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lcd_copy_buffer_rect(dst, src, LCD_WIDTH*height, 1);
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}
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}
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/* Update the display.
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This must be called after all other LCD functions that change the display. */
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void lcd_update(void) __attribute__ ((section(".icode")));
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void lcd_update(void)
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{
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if (!lcd_on)
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return;
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lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
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}
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void lcd_set_contrast(int val) {
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(void) val;
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// TODO:
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}
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void lcd_set_invert_display(bool yesno) {
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(void) yesno;
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// TODO:
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}
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void lcd_set_flip(bool yesno) {
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(void) yesno;
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// TODO:
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}
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/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
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extern void lcd_write_yuv420_lines(fb_data *dst,
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unsigned char chroma_buf[LCD_HEIGHT/2*3],
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unsigned char const * const src[3],
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int width, int stride);
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/* Performance function to blit a YUV bitmap directly to the LCD */
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void lcd_blit_yuv(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height)
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{
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/* Caches for chroma data so it only need be recalculated every other
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line */
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unsigned char chroma_buf[LCD_HEIGHT/2*3]; /* 480 bytes */
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unsigned char const * yuv_src[3];
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off_t z;
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if (!lcd_on)
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return;
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/* Sorry, but width and height must be >= 2 or else */
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width &= ~1;
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height >>= 1;
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fb_data *dst = (fb_data*)FRAME + x * LCD_WIDTH + (LCD_WIDTH - y) - 1;
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z = stride*src_y;
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yuv_src[0] = src[0] + z + src_x;
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yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
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yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
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do
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{
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lcd_write_yuv420_lines(dst, chroma_buf, yuv_src, width,
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stride);
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yuv_src[0] += stride << 1; /* Skip down two luma lines */
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yuv_src[1] += stride >> 1; /* Skip down one chroma line */
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yuv_src[2] += stride >> 1;
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dst -= 2;
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}
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while (--height > 0);
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}
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