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