From 3520d8e90e7f6e3ffc88f8d1ff47fa3cc0efe960 Mon Sep 17 00:00:00 2001 From: Rafaël Carré Date: Wed, 17 Jun 2009 19:55:27 +0000 Subject: Sansa c200v2 : lcd & backlight support, using the c200v1 lcd driver The LCD driver is unified and lcd_send_command now takes 2 arguments : the command and its argument. If there is no argument, it's set to 0 and a NOP command is issued If there is more than one argument (set X/Y address), the 2nd argument is sent as a 2nd command, and a NOP command is issued after it. Benefit : c200v2 transfers the command and the argument in one 16 bits transfer Performance should not be affected since commands without argument are only used in lcd_init() and lcd_enable() lcd_send_data() now transfers whole lines (or columns) instead of single pixels yuv is disabled for c200v2 for now Some buttons can be read, including left button (bit 6 of DBOP_DIN), but for some reason they have no effect in rockbox: to be investigated git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21321 a1c6a512-1295-4272-9138-f99709370657 --- .../target/arm/as3525/sansa-c200v2/lcd-c200v2.c | 429 --------------------- 1 file changed, 429 deletions(-) delete mode 100644 firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c (limited to 'firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c') diff --git a/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c b/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c deleted file mode 100644 index e16b082ce5..0000000000 --- a/firmware/target/arm/as3525/sansa-c200v2/lcd-c200v2.c +++ /dev/null @@ -1,429 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id: lcd-e200v2.c 19453 2008-12-16 02:50:39Z saratoga $ - * - * Copyright (C) 2004 by Linus Nielsen Feltzing - * - * 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. - * - ****************************************************************************/ - -/* FIXME: Copied from e200v2 lcd driver, unlikely to work, but maybe */ - -#include "config.h" - -#include "cpu.h" -#include "lcd.h" -#include "kernel.h" -#include "thread.h" -#include -#include -#include "file.h" -#include "debug.h" -#include "system.h" -#include "font.h" -#include "bidi.h" -#include "clock-target.h" - -static bool display_on = false; /* is the display turned on? */ -static bool display_flipped = false; -static int y_offset = 0; /* needed for flip */ - -/* register defines */ -#define R_START_OSC 0x00 -#define R_DRV_OUTPUT_CONTROL 0x01 -#define R_DRV_WAVEFORM_CONTROL 0x02 -#define R_ENTRY_MODE 0x03 -#define R_COMPARE_REG1 0x04 -#define R_COMPARE_REG2 0x05 - -#define R_DISP_CONTROL1 0x07 -#define R_DISP_CONTROL2 0x08 -#define R_DISP_CONTROL3 0x09 - -#define R_FRAME_CYCLE_CONTROL 0x0b -#define R_EXT_DISP_IF_CONTROL 0x0c - -#define R_POWER_CONTROL1 0x10 -#define R_POWER_CONTROL2 0x11 -#define R_POWER_CONTROL3 0x12 -#define R_POWER_CONTROL4 0x13 - -#define R_RAM_ADDR_SET 0x21 -#define R_WRITE_DATA_2_GRAM 0x22 - -#define R_GAMMA_FINE_ADJ_POS1 0x30 -#define R_GAMMA_FINE_ADJ_POS2 0x31 -#define R_GAMMA_FINE_ADJ_POS3 0x32 -#define R_GAMMA_GRAD_ADJ_POS 0x33 - -#define R_GAMMA_FINE_ADJ_NEG1 0x34 -#define R_GAMMA_FINE_ADJ_NEG2 0x35 -#define R_GAMMA_FINE_ADJ_NEG3 0x36 -#define R_GAMMA_GRAD_ADJ_NEG 0x37 - -#define R_GAMMA_AMP_ADJ_RES_POS 0x38 -#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39 - -#define R_GATE_SCAN_POS 0x40 -#define R_VERT_SCROLL_CONTROL 0x41 -#define R_1ST_SCR_DRV_POS 0x42 -#define R_2ND_SCR_DRV_POS 0x43 -#define R_HORIZ_RAM_ADDR_POS 0x44 -#define R_VERT_RAM_ADDR_POS 0x45 - -#define R_ENTRY_MODE_HORZ 0x7030 -#define R_ENTRY_MODE_VERT 0x7038 -#define R_ENTRY_MODE_SOLID_VERT 0x1038 - -/* TODO: Implement this function */ -static void lcd_delay(int x) -{ - /* This is just arbitrary - the OF does something more complex */ - x *= 1024; - while (x--); -} - -/* DBOP initialisation, do what OF does */ -static void ams3525_dbop_init(void) -{ - CGU_DBOP = (1<<3) | AS3525_DBOP_DIV; - - DBOP_TIMPOL_01 = 0xe167e167; - DBOP_TIMPOL_23 = 0xe167006e; - DBOP_CTRL = 0x41008; - - GPIOB_AFSEL = 0xfc; - GPIOC_AFSEL = 0xff; - - DBOP_TIMPOL_23 = 0x6000e; - DBOP_CTRL = 0x51008; - DBOP_TIMPOL_01 = 0x6e167; - DBOP_TIMPOL_23 = 0xa167e06f; - - /* TODO: The OF calls some other functions here, but maybe not important */ -} - - -static void lcd_write_cmd(int cmd) -{ - /* Write register */ - DBOP_CTRL &= ~(1<<14); - - DBOP_TIMPOL_23 = 0xa167006e; - - DBOP_DOUT = cmd; - - /* Wait for fifo to empty */ - while ((DBOP_STAT & (1<<10)) == 0); - - DBOP_TIMPOL_23 = 0xa167e06f; -} - -void lcd_write_data(const fb_data* p_bytes, int count) -{ - while (count--) - { - DBOP_DOUT = *p_bytes++; - - /* Wait for fifo to empty */ - while ((DBOP_STAT & (1<<10)) == 0); - } -} - -static void lcd_write_reg(int reg, int value) -{ - unsigned short data = value; - - lcd_write_cmd(reg); - lcd_write_data(&data, 1); -} - -/*** hardware configuration ***/ - -void lcd_set_contrast(int val) -{ - (void)val; -} - -void lcd_set_invert_display(bool yesno) -{ - (void)yesno; -} - -static void flip_lcd(bool yesno) -{ - (void)yesno; -} - - -/* turn the display upside down (call lcd_update() afterwards) */ -void lcd_set_flip(bool yesno) -{ - display_flipped = yesno; - y_offset = yesno ? 4 : 0; /* FIXME: Is a y_offset needed? */ - - if (display_on) - flip_lcd(yesno); -} - -static void _display_on(void) -{ - /* Initialisation the display the same way as the original firmware */ - - lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscilation */ - - lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x011b); /* 220 lines, GS=0, SS=1 */ - - /* B/C = 1: n-line inversion form - * EOR = 1: polarity inversion occurs by applying an EOR to odd/even - * frame select signal and an n-line inversion signal. - * FLD = 01b: 1 field interlaced scan, external display iface */ - lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700); - - /* Address counter updated in horizontal direction; left to right; - * vertical increment horizontal increment. - * data format for 8bit transfer or spi = 65k (5,6,5) */ - lcd_write_reg(R_ENTRY_MODE, 0x0030); - - /* Replace data on writing to GRAM */ - lcd_write_reg(R_COMPARE_REG1, 0); - lcd_write_reg(R_COMPARE_REG2, 0); - - lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON = 0, DTE = 0, D1-0 = 00b */ - - /* Front porch lines: 2; Back porch lines: 2; */ - lcd_write_reg(R_DISP_CONTROL2, 0x0203); - - /* Scan cycle = 0 frames */ - lcd_write_reg(R_DISP_CONTROL3, 0x0000); - - /* 16 clocks */ - lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0000); - - /* 18-bit RGB interface (one transfer/pixel) - * internal clock operation; - * System interface/VSYNC interface */ - lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0x0000); - - - /* zero everything*/ - lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* STB = 0, SLP = 0 */ - - lcd_delay(10); - - /* initialise power supply */ - - /* DC12-10 = 000b: Step-up1 = clock/8, - * DC02-00 = 000b: Step-up2 = clock/16, - * VC2-0 = 010b: VciOUT = 0.87 * VciLVL */ - lcd_write_reg(R_POWER_CONTROL2, 0x0002); - - /* VRH3-0 = 1000b: Vreg1OUT = REGP * 1.90 */ - lcd_write_reg(R_POWER_CONTROL3, 0x0008); - - lcd_delay(40); - - lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG = 0 */ - - /* This register is unknown */ - lcd_write_reg(0x56, 0x80f); - - - lcd_write_reg(R_POWER_CONTROL1, 0x4140); - - lcd_delay(10); - - lcd_write_reg(R_POWER_CONTROL2, 0x0000); - lcd_write_reg(R_POWER_CONTROL3, 0x0013); - - lcd_delay(20); - - lcd_write_reg(R_POWER_CONTROL4, 0x6d0e); - - lcd_delay(20); - - lcd_write_reg(R_POWER_CONTROL4, 0x6d0e); - - lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0002); - lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0707); - lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0182); - lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0203); - lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0706); - lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0006); - lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0706); - lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0000); - lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x030f); - lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x0f08); - - - lcd_write_reg(R_RAM_ADDR_SET, 0); - lcd_write_reg(R_GATE_SCAN_POS, 0); - lcd_write_reg(R_VERT_SCROLL_CONTROL, 0); - - lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_HEIGHT-1) << 8); - lcd_write_reg(R_2ND_SCR_DRV_POS, (LCD_HEIGHT-1) << 8); - - lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8); - lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_HEIGHT-1) << 8); - - - lcd_write_reg(R_DISP_CONTROL1, 0x0037); - - display_on=true; /* must be done before calling lcd_update() */ - lcd_update(); -} - -/* LCD init */ -void lcd_init_device(void) -{ - ams3525_dbop_init(); - - /* Init GPIOs the same as the OF */ - - GPIOA_DIR |= (1<<5); - GPIOA_PIN(5) = 0; - - GPIOA_PIN(3) = (1<<3); - - GPIOA_DIR |= (3<<3); - - GPIOA_PIN(3) = (1<<3); - - GPIOA_PIN(4) = 0; /*c80b0040 := 0;*/ - - GPIOA_DIR |= (1<<7); - GPIOA_PIN(7) = 0; - - lcd_delay(1); - - GPIOA_PIN(5) = (1<<5); - - lcd_delay(1); - - _display_on(); -} - -void lcd_enable(bool on) -{ - if(display_on!=on) - { - if(on) - { - _display_on(); - lcd_activation_call_hook(); - } - else - { - /* TODO: Implement off sequence */ - display_on=false; - } - } -} - -bool lcd_active(void) -{ - return display_on; -} - -void lcd_sleep(void) -{ - /* TODO */ -} - -/*** update functions ***/ - -/* Performance function to blit a YUV bitmap directly to the LCD - * src_x, src_y, width and height should be even - * x, y, width and height have to be within LCD bounds - */ -void lcd_blit_yuv(unsigned char * const src[3], - int src_x, int src_y, int stride, - int x, int y, int width, int height) -{ - (void)src; - (void)src_x; - (void)src_y; - (void)stride; - (void)x; - (void)y; - (void)width; - (void)height; -} - -/* Update the display. - This must be called after all other LCD functions that change the display. */ -void lcd_update(void) -{ - if (!display_on) - return; - - lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ); - - /* Set start position and window */ - lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH-1) << 8); - lcd_write_reg(R_VERT_RAM_ADDR_POS, - ((y_offset + LCD_HEIGHT-1) << 8) | y_offset); - lcd_write_reg(R_RAM_ADDR_SET, (y_offset) << 8); - - lcd_write_cmd(R_WRITE_DATA_2_GRAM); - - lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT); - -} /* lcd_update */ - - -/* Update a fraction of the display. */ -void lcd_update_rect(int x, int y, int width, int height) -{ - int ymax; - const unsigned short *ptr; - - if (!display_on) - return; - - if (x + width > LCD_WIDTH) - width = LCD_WIDTH - x; /* Clip right */ - if (x < 0) - width += x, x = 0; /* Clip left */ - if (width <= 0) - return; /* nothing left to do */ - - ymax = y + height; - if (ymax > LCD_HEIGHT) - ymax = LCD_HEIGHT; /* Clip bottom */ - if (y < 0) - y = 0; /* Clip top */ - if (y >= ymax) - return; /* nothing left to do */ - - lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ); - /* Set start position and window */ - lcd_write_reg(R_HORIZ_RAM_ADDR_POS, - ((x + width-1) << 8) | x); - lcd_write_reg(R_VERT_RAM_ADDR_POS, - ((y_offset + y + height - 1) << 8) | (y_offset + y)); - lcd_write_reg(R_RAM_ADDR_SET, ((y + y_offset) << 8) | x); - - lcd_write_cmd(R_WRITE_DATA_2_GRAM); - - ptr = (unsigned short *)&lcd_framebuffer[y][x]; - - do - { - lcd_write_data(ptr, width); - ptr += LCD_WIDTH; - } - while (++y < ymax); -} /* lcd_update_rect */ -- cgit v1.2.3