From 6921a2b6b988e40fed1c2c3c5182381c26ef3d75 Mon Sep 17 00:00:00 2001 From: Rafaël Carré Date: Thu, 27 May 2010 23:32:38 +0000 Subject: Merge common LCD code between fuzev1 & fuzev2 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26344 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/as3525/lcd-fuze.c | 338 ++++++++++++++++++++++++++++++++++ 1 file changed, 338 insertions(+) create mode 100644 firmware/target/arm/as3525/lcd-fuze.c (limited to 'firmware/target/arm/as3525/lcd-fuze.c') diff --git a/firmware/target/arm/as3525/lcd-fuze.c b/firmware/target/arm/as3525/lcd-fuze.c new file mode 100644 index 0000000000..ef4791e6eb --- /dev/null +++ b/firmware/target/arm/as3525/lcd-fuze.c @@ -0,0 +1,338 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Dave Chapman + * + * LCD driver for the Sansa Fuze - controller unknown + * + * 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 "config.h" + +#include "cpu.h" +#include "lcd.h" +#include "system.h" +#include "file.h" +#include "clock-target.h" +#include "dbop-as3525.h" +#include "lcd-fuze.h" + +/* The controller is unknown, but some registers appear to be the same as the + HD66789R */ +static bool display_on = false; /* is the display turned on? */ + +/* Flip Flag */ +static unsigned short r_entry_mode = R_ENTRY_MODE_HORZ_NORMAL; + +/* Reverse Flag */ +static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL; + +static const int xoffset = 20; + +/*** hardware configuration ***/ + +void lcd_set_contrast(int val) +{ + (void)val; +} + +void lcd_set_invert_display(bool yesno) +{ + r_disp_control_rev = yesno ? R_DISP_CONTROL_REV : + R_DISP_CONTROL_NORMAL; + + if (display_on) + { + lcd_write_reg(R_DISP_CONTROL1, 0x0013 | r_disp_control_rev); + } + +} + +#ifdef HAVE_LCD_FLIP +static bool display_flipped = false; + +/* turn the display upside down */ +void lcd_set_flip(bool yesno) +{ + display_flipped = yesno; + + r_entry_mode = yesno ? R_ENTRY_MODE_HORZ_FLIPPED : + R_ENTRY_MODE_HORZ_NORMAL; +} +#endif + +void fuze_display_on(void) +{ + /* Initialise in the same way as the original firmare */ + + lcd_write_reg(R_DISP_CONTROL1, 0); + lcd_write_reg(R_POWER_CONTROL4, 0); + + lcd_write_reg(R_POWER_CONTROL2, 0x3704); + lcd_write_reg(0x14, 0x1a1b); + lcd_write_reg(R_POWER_CONTROL1, 0x3860); + lcd_write_reg(R_POWER_CONTROL4, 0x40); + + lcd_write_reg(R_POWER_CONTROL4, 0x60); + + lcd_write_reg(R_POWER_CONTROL4, 0x70); + lcd_write_reg(R_DRV_OUTPUT_CONTROL, 277); + lcd_write_reg(R_DRV_WAVEFORM_CONTROL, (7<<8)); + lcd_write_reg(R_ENTRY_MODE, r_entry_mode); + lcd_write_reg(R_DISP_CONTROL2, 0x01); + lcd_write_reg(R_FRAME_CYCLE_CONTROL, (1<<10)); + lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0); + + lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x40); + lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0687); + lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0306); + lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x104); + lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0585); + lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 255+66); + lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0687+128); + lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 259); + lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0); + lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0); + + lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_WIDTH - 1)); + lcd_write_reg(R_2ND_SCR_DRV_POS, 0); + lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH - 1)); + lcd_write_reg(R_VERT_RAM_ADDR_POS, 0); + lcd_write_reg(0x46, (((LCD_WIDTH - 1) + xoffset) << 8) | xoffset); + lcd_write_reg(0x47, (LCD_HEIGHT - 1)); + lcd_write_reg(0x48, 0x0); + + lcd_write_reg(R_DISP_CONTROL1, 0x11); + lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev); + + display_on = true; /* must be done before calling lcd_update() */ + lcd_update(); +} + +#if defined(HAVE_LCD_ENABLE) +void lcd_enable(bool on) +{ + if (display_on == on) + return; + + if(on) + { + lcd_write_reg(R_START_OSC, 1); + lcd_write_reg(R_POWER_CONTROL1, 0); + lcd_write_reg(R_POWER_CONTROL2, 0x3704); + lcd_write_reg(0x14, 0x1a1b); + lcd_write_reg(R_POWER_CONTROL1, 0x3860); + lcd_write_reg(R_POWER_CONTROL4, 0x40); + lcd_write_reg(R_POWER_CONTROL4, 0x60); + lcd_write_reg(R_POWER_CONTROL4, 112); + lcd_write_reg(R_DISP_CONTROL1, 0x11); + lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev); + display_on = true; + lcd_update(); /* Resync display */ + send_event(LCD_EVENT_ACTIVATION, NULL); + sleep(0); + + } + else + { + lcd_write_reg(R_DISP_CONTROL1, 0x22); + lcd_write_reg(R_DISP_CONTROL1, 0); + lcd_write_reg(R_POWER_CONTROL1, 1); + display_on = false; + } +} +#endif + +#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP) +bool lcd_active(void) +{ + return display_on; +} +#endif + +/*** update functions ***/ + +/* FIXME : find the datasheet for this RENESAS controller so we identify the + * registers used in windowing code (not present in HD66789R) */ + +/* Set horizontal window addresses */ +static void lcd_window_x(int xmin, int xmax) +{ + xmin += xoffset; + xmax += xoffset; + lcd_write_reg(R_HORIZ_RAM_ADDR_POS + 2, (xmax << 8) | xmin); + lcd_write_reg(R_RAM_ADDR_SET - 1, xmin); +} + +/* Set vertical window addresses */ +static void lcd_window_y(int ymin, int ymax) +{ + lcd_write_reg(R_VERT_RAM_ADDR_POS + 2, ymax); + lcd_write_reg(R_VERT_RAM_ADDR_POS + 3, ymin); + lcd_write_reg(R_RAM_ADDR_SET, ymin); +} + +static unsigned lcd_yuv_options = 0; + +void lcd_yuv_set_options(unsigned options) +{ + lcd_yuv_options = options; +} + + +#ifndef BOOTLOADER +/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */ +extern void lcd_write_yuv420_lines(unsigned char const * const src[3], + int width, + int stride); +extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3], + int width, + int stride, + int x_screen, /* To align dither pattern */ + int y_screen); + +/* 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) +{ + unsigned char const * yuv_src[3]; + off_t z; + + /* Sorry, but width and height must be >= 2 or else */ + width &= ~1; + height >>= 1; + + z = stride*src_y; + yuv_src[0] = src[0] + z + src_x; + yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1); + yuv_src[2] = src[2] + (yuv_src[1] - src[1]); + +#ifdef HAVE_LCD_FLIP + lcd_write_reg(R_ENTRY_MODE, + display_flipped ? R_ENTRY_MODE_VIDEO_FLIPPED : R_ENTRY_MODE_VIDEO_NORMAL + ); +#else + lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VIDEO_NORMAL); +#endif + + lcd_window_x(x, x + width - 1); + + if (lcd_yuv_options & LCD_YUV_DITHER) + { + do + { + lcd_window_y(y, y + 1); + + lcd_write_cmd(R_WRITE_DATA_2_GRAM); + + lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y); + yuv_src[0] += stride << 1; /* Skip down two luma lines */ + yuv_src[1] += stride >> 1; /* Skip down one chroma line */ + yuv_src[2] += stride >> 1; + y += 2; + } + while (--height > 0); + } + else + { + do + { + lcd_window_y(y, y + 1); + + lcd_write_cmd(R_WRITE_DATA_2_GRAM); + + lcd_write_yuv420_lines(yuv_src, width, stride); + yuv_src[0] += stride << 1; /* Skip down two luma lines */ + yuv_src[1] += stride >> 1; /* Skip down one chroma line */ + yuv_src[2] += stride >> 1; + y += 2; + } + while (--height > 0); + } +} + +#endif + + +/* 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); + + lcd_window_x(0, LCD_WIDTH - 1); + lcd_window_y(0, LCD_HEIGHT - 1); + + lcd_write_cmd(R_WRITE_DATA_2_GRAM); + + dbop_write_data((fb_data*)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT); +} + +/* Update a fraction of the display. */ +void lcd_update_rect(int x, int y, int width, int height) +{ + const fb_data *ptr; + + if (!display_on) + return; + + /* nothing to draw? */ + if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) || + (y >= LCD_HEIGHT) || (x + width <= 0) || (y + height <= 0)) + return; + + if (x < 0) + { /* clip left */ + width += x; + x = 0; + } + if (y < 0) + { /* clip top */ + height += y; + y = 0; + } + if (x + width > LCD_WIDTH) + width = LCD_WIDTH - x; /* clip right */ + if (y + height > LCD_HEIGHT) + height = LCD_HEIGHT - y; /* clip bottom */ + + lcd_write_reg(R_ENTRY_MODE, r_entry_mode); + + /* we need to make x and width even to enable 32bit transfers */ + width = (width + (x & 1) + 1) & ~1; + x &= ~1; + + lcd_window_x(x, x + width - 1); + lcd_window_y(y, y + height -1); + + lcd_write_cmd(R_WRITE_DATA_2_GRAM); + + ptr = &lcd_framebuffer[y][x]; + + do + { + dbop_write_data(ptr, width); + ptr += LCD_WIDTH; + } + while (--height > 0); +} -- cgit v1.2.3