503 lines
14 KiB
C
503 lines
14 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) 2009 by Szymon Dziok
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* Based on the Iriver H10 code by Barry Wardell
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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 "config.h"
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#include "cpu.h"
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#include "lcd.h"
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#include "kernel.h"
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#include "system.h"
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/** Initialized in lcd_init_device() **/
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/* Is the power turned on? */
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static bool power_on;
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/* Is the display turned on? */
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static bool display_on;
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/* Reverse flag. Must be remembered when display is turned off. */
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static unsigned short disp_control_rev;
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/* Contrast setting << 8 */
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static int lcd_contrast;
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static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
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/* Forward declarations */
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#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
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static void lcd_display_off(void);
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#endif
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/* register defines for the Renesas HD66773R */
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/*
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In Packard Bell from the OF - it seems to be
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HD66774(gate) with HD66772(source) - registers
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are very similar but not all the same
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*/
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#define R_START_OSC 0x00
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#define R_DEVICE_CODE_READ 0x00
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#define R_DRV_OUTPUT_CONTROL 0x01
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#define R_DRV_AC_CONTROL 0x02
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#define R_POWER_CONTROL1 0x03
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#define R_POWER_CONTROL2 0x04
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#define R_ENTRY_MODE 0x05
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#define R_COMPARE_REG 0x06
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#define R_DISP_CONTROL 0x07
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#define R_FRAME_CYCLE_CONTROL 0x0b
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#define R_POWER_CONTROL3 0x0c
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#define R_POWER_CONTROL4 0x0d
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#define R_POWER_CONTROL5 0x0e
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#define R_GATE_SCAN_START_POS 0x0f
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#define R_VERT_SCROLL_CONTROL 0x11
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#define R_1ST_SCR_DRV_POS 0x14
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#define R_2ND_SCR_DRV_POS 0x15
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#define R_HORIZ_RAM_ADDR_POS 0x16
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#define R_VERT_RAM_ADDR_POS 0x17
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#define R_RAM_WRITE_DATA_MASK 0x20
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#define R_RAM_ADDR_SET 0x21
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#define R_WRITE_DATA_2_GRAM 0x22
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#define R_RAM_READ_DATA 0x22
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#define R_GAMMA_FINE_ADJ_POS1 0x30
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#define R_GAMMA_FINE_ADJ_POS2 0x31
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#define R_GAMMA_FINE_ADJ_POS3 0x32
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#define R_GAMMA_GRAD_ADJ_POS 0x33
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#define R_GAMMA_FINE_ADJ_NEG1 0x34
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#define R_GAMMA_FINE_ADJ_NEG2 0x35
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#define R_GAMMA_FINE_ADJ_NEG3 0x36
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#define R_GAMMA_GRAD_ADJ_NEG 0x37
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#define R_GAMMA_AMP_ADJ_POS 0x3a
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#define R_GAMMA_AMP_ADJ_NEG 0x3b
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static inline void lcd_wait_write(void)
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{
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while (LCD1_CONTROL & LCD1_BUSY_MASK);
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}
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/* Send command */
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static inline void lcd_send_cmd(unsigned v)
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{
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lcd_wait_write();
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LCD1_CMD = (v >> 8);
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lcd_wait_write();
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LCD1_CMD = (v & 0xff);
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}
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/* Send 16-bit data */
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static inline void lcd_send_data(unsigned v)
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{
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lcd_wait_write();
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LCD1_DATA = (v >> 8);
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lcd_wait_write();
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LCD1_DATA = (v & 0xff);
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}
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/* Send 16-bit data byte-swapped. */
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static inline void lcd_send_data_swapped(unsigned v)
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{
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lcd_wait_write();
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LCD1_DATA = (v & 0xff);
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lcd_wait_write();
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LCD1_DATA = (v >> 8);
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}
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/* Write value to register */
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static void lcd_write_reg(int reg, int val)
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{
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lcd_send_cmd(reg);
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lcd_send_data(val);
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}
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/*** hardware configuration ***/
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int lcd_default_contrast(void)
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{
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return DEFAULT_CONTRAST_SETTING;
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}
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void lcd_set_contrast(int val)
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{
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lcd_contrast = (val&0x1f) << 8;
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if (!power_on) return;
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/* VCOMG=1, VDV4-0=xxxxx, VCM4-0=11000 */
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lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
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}
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void lcd_set_invert_display(bool yesno)
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{
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if (yesno == (disp_control_rev == 0x0000))
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return;
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disp_control_rev = yesno ? 0x0000 : 0x0004;
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if (!display_on)
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return;
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/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */
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lcd_write_reg(R_DISP_CONTROL, 0x0033 | disp_control_rev);
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}
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/* turn the display upside down (call lcd_update() afterwards) */
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void lcd_set_flip(bool yesno)
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{
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if (!power_on)
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return;
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/* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160) */
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lcd_write_reg(R_DRV_OUTPUT_CONTROL, yesno ? 0x0313 : 0x0013);
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}
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/* LCD init */
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void lcd_init_device(void)
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{
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power_on = true;
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display_on = true;
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disp_control_rev = 0x0004;
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lcd_contrast = DEFAULT_CONTRAST_SETTING << 8;
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}
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#ifdef HAVE_LCD_SLEEP
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static void lcd_power_on(void)
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{
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/* from the OF */
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lcd_write_reg(R_START_OSC,0x01); /* START_OSC */
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sleep(HZ/40); /* 25ms */
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/* set 396x160 dots, SM=0, GS=x, SS=0, NL4-0=10011 G1-G160)*/
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lcd_write_reg(R_DRV_OUTPUT_CONTROL,0x13);
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/* FLD1-0=01 (1 field), B/C=1, EOR=1 (C-pat), NW5-0=000000 (1 row) */
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lcd_write_reg(R_DRV_AC_CONTROL,7 << 8);
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/* DIT=0, BGR=1, HWM=0, I/D1-0=0 - decrement AC, AM=1, LG2-0=000 */
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lcd_write_reg(R_ENTRY_MODE,0x1008);
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lcd_write_reg(0x25,0x0000); /* - ?? */
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lcd_write_reg(0x26,0x0202); /* - ?? */
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lcd_write_reg(0x0A,0x0000); /* - ?? */
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lcd_write_reg(R_FRAME_CYCLE_CONTROL,0x0000);
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lcd_write_reg(R_POWER_CONTROL4,0x0000);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0x0000);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL3,0x0000);
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lcd_write_reg(0x09,0x0008); /* - ?? */
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL4,0x0003);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0x1019);
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sleep(HZ/20); /* 50ms */
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lcd_write_reg(R_POWER_CONTROL4,0x0013);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL1,0x0010);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(0x09,0x0000); /* - ?? */
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL1,0x0010);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0x3019);
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sleep(HZ*10/66);/* /6.6 = 150ms */
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lcd_write_reg(0x09,0x0002); /* - ?? */
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL4,0x0018);
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sleep(HZ/20); /* 50ms */
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/* RAM Address set (0x0000) */
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lcd_write_reg(R_RAM_ADDR_SET,0x0000);
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/* Gamma settings */
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS1,0x0004);
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS2,0x0606);
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS3,0x0505);
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lcd_write_reg(R_GAMMA_GRAD_ADJ_POS,0x0206);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1,0x0505);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2,0x0707);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3,0x0105);
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lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG,0x0301);
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lcd_write_reg(R_GAMMA_AMP_ADJ_POS,0x1A00);
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lcd_write_reg(R_GAMMA_AMP_ADJ_NEG,0x010E);
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lcd_write_reg(R_GATE_SCAN_START_POS,0x0000);
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/* Horizontal ram address start/end position (0,127); */
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lcd_write_reg(R_HORIZ_RAM_ADDR_POS,0x7F00);
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/* Vertical ram address start/end position (0,159); */
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lcd_write_reg(R_VERT_RAM_ADDR_POS,0x9F00);
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lcd_write_reg(R_DISP_CONTROL,0x0005);
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sleep(HZ/25); /* 40ms */
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lcd_write_reg(R_DISP_CONTROL,0x0025);
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lcd_write_reg(R_DISP_CONTROL,0x0027);
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sleep(HZ/25); /* 40ms */
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lcd_write_reg(R_DISP_CONTROL,0x0033 | disp_control_rev);
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sleep(HZ/100); /* 10ms */
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lcd_write_reg(R_POWER_CONTROL1,0x0110);
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lcd_write_reg(R_FRAME_CYCLE_CONTROL,0x0000);
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lcd_write_reg(R_POWER_CONTROL4,0x0013);
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lcd_write_reg(R_POWER_CONTROL5,0x2018 | lcd_contrast);
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sleep(HZ/20); /* 50ms */
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power_on = true;
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}
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static void lcd_power_off(void)
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{
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/* Display must be off first */
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if (display_on)
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lcd_display_off();
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/* power_on = false; */
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/** Power OFF sequence **/
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/* The method is unknown */
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}
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void lcd_sleep(void)
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{
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if (power_on)
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lcd_power_off();
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/* Set standby mode */
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/* Because we dont know how to power off display
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we cannot set standby */
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/* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=1 */
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/* lcd_write_reg(R_POWER_CONTROL1, 0x0001); */
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}
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#endif
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#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
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static void lcd_display_off(void)
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{
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display_on = false;
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/** Display OFF sequence **/
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/* In the OF it is called "EnterStandby" */
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/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=10 */
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lcd_write_reg(R_DISP_CONTROL, 0x0032 | disp_control_rev);
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sleep(HZ/22); /* 45ms */
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/* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=10 */
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lcd_write_reg(R_DISP_CONTROL, 0x0022 | disp_control_rev);
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sleep(HZ/22); /* 45ms */
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/* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=00 */
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lcd_write_reg(R_DISP_CONTROL, 0x0000);
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lcd_write_reg(R_POWER_CONTROL1, 0x0000);
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lcd_write_reg(0x09, 0x0000); /* -?? */
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lcd_write_reg(R_POWER_CONTROL4, 0x0000);
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sleep(HZ/22); /* 45ms */
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}
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#endif
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#if defined(HAVE_LCD_ENABLE)
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static void lcd_display_on(void)
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{
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/* Be sure power is on first */
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if (!power_on)
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lcd_power_on();
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/** Display ON Sequence **/
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/* In the OF it is called "ExitStandby" */
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lcd_write_reg(R_START_OSC,1);
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sleep(HZ/40); /* 25ms */
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lcd_write_reg(R_POWER_CONTROL4,0);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_DISP_CONTROL,0);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL3,0);
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lcd_write_reg(0x09,8); /* -?? */
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL4,3);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0x1019);
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sleep(HZ/20); /* 50ms */
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lcd_write_reg(R_POWER_CONTROL4,0x13);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL1,0x10);
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sleep(HZ/20); /* 50ms */
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lcd_write_reg(0x09,0); /* -?? */
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL1,0x10);
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sleep(HZ/67); /* 15ms */
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lcd_write_reg(R_POWER_CONTROL5,0x3019);
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sleep(HZ*10/66);/* /6.6 = 150ms */
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lcd_write_reg(0x09,2); /* -?? */
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sleep(HZ/20); /* 50ms */
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lcd_write_reg(R_DISP_CONTROL,5);
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sleep(HZ/22); /* 45ms */
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lcd_write_reg(R_DISP_CONTROL,0x25);
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sleep(HZ/22); /* 45ms */
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lcd_write_reg(R_DISP_CONTROL,0x27);
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sleep(HZ/25); /* 40ms */
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lcd_write_reg(R_DISP_CONTROL,0x33 | disp_control_rev);
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sleep(HZ/22); /* 45ms */
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/* fix contrast */
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lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
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display_on = true;
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}
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void lcd_enable(bool on)
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{
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if (on == display_on)
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return;
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if (on)
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{
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lcd_display_on();
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/* Probably out of sync and we don't wanna pepper the code with
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lcd_update() calls for this. */
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lcd_update();
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send_event(LCD_EVENT_ACTIVATION, NULL);
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}
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else
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{
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lcd_display_off();
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}
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}
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#endif
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#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
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bool lcd_active(void)
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{
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return display_on;
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}
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#endif
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/*** update functions ***/
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void lcd_yuv_set_options(unsigned options)
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{
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lcd_yuv_options = options;
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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(unsigned char const * const src[3],
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int width,
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int stride);
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extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3],
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int width,
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int stride,
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int x_screen, /* To align dither pattern */
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int y_screen);
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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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const unsigned char *yuv_src[3];
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const unsigned char *ysrc_max;
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int y0;
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int options;
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if (!display_on)
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return;
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width &= ~1;
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height &= ~1;
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lcd_write_reg(R_VERT_RAM_ADDR_POS, ((LCD_WIDTH - 1 - x) << 8) |
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((LCD_WIDTH-1) - (x + width - 1)));
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y0 = LCD_HEIGHT - 1 - y;
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lcd_write_reg(R_ENTRY_MODE,0x1000);
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yuv_src[0] = src[0] + src_y * stride + src_x;
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yuv_src[1] = src[1] + (src_y * stride >> 2) + (src_x >> 1);
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yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
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ysrc_max = yuv_src[0] + height * stride;
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options = lcd_yuv_options;
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do
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{
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lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (y0 << 8) | (y0 - 1));
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lcd_write_reg(R_RAM_ADDR_SET, ((LCD_WIDTH - 1 - x) << 8) | y0);
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/* start drawing */
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lcd_send_cmd(R_WRITE_DATA_2_GRAM);
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if (options & LCD_YUV_DITHER)
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{
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lcd_write_yuv420_lines_odither(yuv_src, width, stride,x, y);
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y -= 2;
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}
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else
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{
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lcd_write_yuv420_lines(yuv_src, width, stride);
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}
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y0 -= 2;
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yuv_src[0] += stride << 1;
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|
yuv_src[1] += stride >> 1;
|
|
yuv_src[2] += stride >> 1;
|
|
}
|
|
while (yuv_src[0] < ysrc_max);
|
|
lcd_write_reg(R_ENTRY_MODE,0x1008);
|
|
}
|
|
|
|
/* Update a fraction of the display. */
|
|
void lcd_update_rect(int x0, int y0, int width, int height)
|
|
{
|
|
const fb_data *addr;
|
|
int x1, y1;
|
|
|
|
if (!display_on)
|
|
return;
|
|
|
|
if ((width<=0)||(height<=0))
|
|
return;
|
|
|
|
if ((x0 + width)>=LCD_WIDTH)
|
|
width = LCD_WIDTH - x0;
|
|
if ((y0 + height)>=LCD_HEIGHT)
|
|
height = LCD_HEIGHT - y0;
|
|
|
|
y1 = (y0 + height) - 1;
|
|
x1 = (x0 + width) - 1;
|
|
|
|
/* In the PB Vibe LCD is flipped and the RAM addresses are decremented */
|
|
lcd_send_cmd(R_HORIZ_RAM_ADDR_POS);
|
|
lcd_send_data( (((LCD_HEIGHT-1)-y0) << 8) | ((LCD_HEIGHT-1)-y1));
|
|
|
|
lcd_send_cmd(R_VERT_RAM_ADDR_POS);
|
|
lcd_send_data( (((LCD_WIDTH -1)-x0) << 8) | ((LCD_WIDTH -1)-x1));
|
|
|
|
lcd_send_cmd(R_RAM_ADDR_SET);
|
|
lcd_send_data( (((LCD_WIDTH -1)-x0) << 8) | ((LCD_HEIGHT-1)-y0));
|
|
|
|
/* start drawing */
|
|
lcd_send_cmd(R_WRITE_DATA_2_GRAM);
|
|
|
|
addr = FBADDR(x0, y0);
|
|
|
|
int c, r;
|
|
for (r = 0; r < height; r++)
|
|
{
|
|
for (c = 0; c < width; c++)
|
|
lcd_send_data_swapped(*addr++);
|
|
addr += LCD_WIDTH - width;
|
|
}
|
|
}
|
|
|
|
/* Update the display.
|
|
This must be called after all other LCD
|
|
functions that change the display. */
|
|
void lcd_update(void)
|
|
{
|
|
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
|
|
}
|