/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * 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. * ****************************************************************************/ #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" /* Power and display status */ static bool power_on = false; /* Is the power turned on? */ static bool display_on = false; /* Is the display turned on? */ /* Contrast */ static int lcd_contrast = DEFAULT_CONTRAST_SETTING << 8; /* Reverse Flag */ #define R_DISP_CONTROL_NORMAL 0x0004 #define R_DISP_CONTROL_REV 0x0000 static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL; /* Flipping */ #define Y_OFFSET_NORMAL 0 #define Y_OFFSET_FLIPPED 4 static int y_offset = 0; /* y correction for flip */ static unsigned short r_gate_scan_start_pos = 0x0002; static unsigned short r_drv_output_control = 0x0313; static unsigned short r_horiz_ram_addr_pos = 0x7f00; /* A15(0x8000) && CS1->CS, A1(0x0002)->RS */ #define LCD_CMD *(volatile unsigned short *)0xf0008000 #define LCD_DATA *(volatile unsigned short *)0xf0008002 /* register defines for the Renesas HD66773R */ #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 #define R_ENTRY_MODE_SOLID_VERT 0x1038 #define R_ENTRY_MODE_DIT_HORZ 0x9030 /* called very frequently - inline! */ static inline void lcd_write_reg(int reg, int val) { LCD_CMD = 0x0000; /* MSB is ~always~ 0 */ LCD_CMD = reg << 1; LCD_DATA = (val >> 8) << 1; LCD_DATA = val << 1; } /* called very frequently - inline! */ static inline void lcd_begin_write_gram(void) { LCD_CMD = 0x0000; LCD_CMD = R_WRITE_DATA_2_GRAM << 1; } /*** hardware configuration ***/ int lcd_default_contrast(void) { return DEFAULT_CONTRAST_SETTING; } void lcd_set_contrast(int val) { /* Clamp val in range 0-14, 16-30 */ if (val < 1) val = 0; else if (val <= 15) --val; else if (val > 30) val = 30; lcd_contrast = val << 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) { r_disp_control_rev = yesno ? R_DISP_CONTROL_REV : R_DISP_CONTROL_NORMAL; 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 | r_disp_control_rev); } /* turn the display upside down (call lcd_update() afterwards) */ void lcd_set_flip(bool yesno) { if (yesno) { y_offset = Y_OFFSET_FLIPPED; r_gate_scan_start_pos = 0x0000; r_drv_output_control = 0x0013; r_horiz_ram_addr_pos = 0x8304; } else { y_offset = Y_OFFSET_NORMAL; r_gate_scan_start_pos = 0x0002; r_drv_output_control = 0x0313; r_horiz_ram_addr_pos = 0x7f00; } if (!power_on) return; /* SCN4-0=000x0 (G1/G160) */ lcd_write_reg(R_GATE_SCAN_START_POS, r_gate_scan_start_pos); /* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160)*/ lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control); /* HEA7-0=0xxx, HSA7-0=0xxx */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, r_horiz_ram_addr_pos); } static void lcd_power_on(void) { /* Be sure standby bit is clear. */ /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */ lcd_write_reg(R_POWER_CONTROL1, 0x0000); /** Power ON Sequence **/ /* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */ lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscillation */ /* 10ms or more for oscillation circuit to stabilize */ sleep(HZ/50); /* Instruction (1) for power setting; VC2-0, VRH3-0, CAD, VRL3-0, VCM4-0, VDV4-0 */ /* VC2-0=001 */ lcd_write_reg(R_POWER_CONTROL3, 0x0001); /* VRL3-0=0100, PON=0, VRH3-0=0001 */ lcd_write_reg(R_POWER_CONTROL4, 0x0401); /* CAD=1 */ lcd_write_reg(R_POWER_CONTROL2, 0x8000); /* VCOMG=0, VDV4-0=xxxxx, VCM4-0=11000 */ lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast); /* Instruction (2) for power setting; BT2-0, DC2-0, AP2-0 */ /* BT2-0=000, DC2-0=001, AP2-0=011, SLP=0, STB=0 */ lcd_write_reg(R_POWER_CONTROL1, 0x002c); /* Instruction (3) for power setting; VCOMG = "1" */ /* VCOMG=1, VDV4-0=xxxxx, VCM4-0=11000 */ lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast); /* 40ms or more; time for step-up circuits 1,2 to stabilize */ sleep(HZ/25); /* Instruction (4) for power setting; PON = "1" */ /* VRL3-0=0100, PON=1, VRH3-0=0001 */ lcd_write_reg(R_POWER_CONTROL4, 0x0411); /* 40ms or more; time for step-up circuit 4 to stabilize */ sleep(HZ/25); /* Instructions for other mode settings (in register order). */ /* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160)*/ lcd_write_reg(R_DRV_OUTPUT_CONTROL, r_drv_output_control); /* FLD1-0=01 (1 field), B/C=1, EOR=1 (C-pat), NW5-0=000000 (1 row) */ lcd_write_reg(R_DRV_AC_CONTROL, 0x0700); /* DIT=x, BGR=1, HWM=0, I/D1-0=11, AM=1, LG2-0=000 */ lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT); /* CP15-0=0000000000000000 */ lcd_write_reg(R_COMPARE_REG, 0x0000); /* NO1-0=01, SDT1-0=00, EQ1-0=00, DIV1-0=00, RTN3-00000 */ lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x4000); /* SCN4-0=000x0 (G1/G160) */ lcd_write_reg(R_GATE_SCAN_START_POS, r_gate_scan_start_pos); /* VL7-0=0x00 */ lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000); /* SE17-10(End)=0x9f (159), SS17-10(Start)=0x00 */ lcd_write_reg(R_1ST_SCR_DRV_POS, 0x9f00); /* SE27-20(End)=0x5c (92), SS27-20(Start)=0x00 */ lcd_write_reg(R_2ND_SCR_DRV_POS, 0x5c00); /* HEA7-0=0xxx, HSA7-0=0xxx */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, r_horiz_ram_addr_pos); /* PKP12-10=0x0, PKP02-00=0x0 */ lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0003); /* PKP32-30=0x4, PKP22-20=0x0 */ lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0400); /* PKP52-50=0x4, PKP42-40=0x7 */ lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0407); /* PRP12-10=0x3, PRP02-00=0x5 */ lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0305); /* PKN12-10=0x0, PKN02-00=0x3 */ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0003); /* PKN32-30=0x7, PKN22-20=0x4 */ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0704); /* PKN52-50=0x4, PRN42-40=0x7 */ lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0407); /* PRN12-10=0x5, PRN02-00=0x3 */ lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0503); /* VRP14-10=0x14, VRP03-00=0x09 */ lcd_write_reg(R_GAMMA_AMP_ADJ_POS, 0x1409); /* VRN14-00=0x06, VRN03-00=0x02 */ lcd_write_reg(R_GAMMA_AMP_ADJ_NEG, 0x0602); /* 100ms or more; time for step-up circuits to stabilize */ sleep(HZ/10); power_on = true; } static void lcd_display_on(void) { /* Be sure power is on first */ if (!power_on) lcd_power_on(); /** Display ON Sequence **/ /* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=01 */ lcd_write_reg(R_DISP_CONTROL, 0x0001); sleep(HZ/25); /* Wait 2 frames or more */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=01 */ lcd_write_reg(R_DISP_CONTROL, 0x0021 | r_disp_control_rev); /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=11 */ lcd_write_reg(R_DISP_CONTROL, 0x0023 | r_disp_control_rev); sleep(HZ/25); /* Wait 2 frames or more */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */ lcd_write_reg(R_DISP_CONTROL, 0x0033 | r_disp_control_rev); display_on = true; } #if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP) static void lcd_display_off(void) { display_on = false; /** Display OFF sequence **/ /* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */ /* EQ1-0=00 already */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=10 */ lcd_write_reg(R_DISP_CONTROL, 0x0032 | r_disp_control_rev); sleep(HZ/25); /* Wait 2 frames or more */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=10 */ lcd_write_reg(R_DISP_CONTROL, 0x0022 | r_disp_control_rev); sleep(HZ/25); /* Wait 2 frames or more */ /* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=00 */ lcd_write_reg(R_DISP_CONTROL, 0x0000); } #endif #if defined(HAVE_LCD_SLEEP) static void lcd_power_off(void) { /* Display must be off first */ if (display_on) lcd_display_off(); power_on = false; /** Power OFF sequence **/ /* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */ /* Step-up1 halt setting bit */ /* BT2-0=110, DC2-0=001, AP2-0=011, SLP=0, STB=0 */ lcd_write_reg(R_POWER_CONTROL1, 0x062c); /* Step-up3,4 halt setting bit */ /* VRL3-0=0100, PON=0, VRH3-0=0001 */ lcd_write_reg(R_POWER_CONTROL4, 0x0401); /* VCOMG=0, VDV4-0=xxxxx, VCM4-0=11000 */ lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast); /* Wait 100ms or more */ sleep(HZ/10); /* Step-up2,amp halt setting bit */ /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */ lcd_write_reg(R_POWER_CONTROL1, 0x0000); } void lcd_awake(void) { /* Nothing to do */ } void lcd_sleep(void) { if (power_on) lcd_power_off(); /* Set standby mode */ /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=1 */ lcd_write_reg(R_POWER_CONTROL1, 0x0001); } #endif /* LCD init */ void lcd_init_device(void) { #ifdef BOOTLOADER /* Initial boot requires power on reset and setting up chip registers but a full reset is not needed again. */ /* LCD Reset */ and_l(~0x00000010, &GPIO1_OUT); or_l(0x00000010, &GPIO1_ENABLE); or_l(0x00000010, &GPIO1_FUNCTION); sleep(HZ/100); or_l(0x00000010, &GPIO1_OUT); sleep(HZ/100); lcd_display_on(); #else /* Power and display already ON - reset settings */ power_on = true; display_on = true; lcd_set_contrast(DEFAULT_CONTRAST_SETTING); lcd_set_invert_display(false); lcd_set_flip(false); lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT); /* do this or all bootloaders will need reflashing */ #endif } #if defined(HAVE_LCD_ENABLE) 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 ***/ /* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. * y should have two lines of Y back to back, 2nd line first. * c should contain the Cb and Cr data for the two lines of Y back to back. * Needs EMAC set to saturated, signed integer mode. */ extern void lcd_write_yuv420_lines(const unsigned char *y, const unsigned char *c, int width); /* Performance function to blit a YUV bitmap directly to the LCD * src_x, src_y, width and height should be even and within the LCD's * boundaries. */ 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) { /* IRAM Y, Cb/bu, guv and Cb/rv buffers. */ unsigned char y_ibuf[LCD_WIDTH*2]; unsigned char c_ibuf[LCD_WIDTH]; const unsigned char *ysrc, *usrc, *vsrc; const unsigned char *ysrc_max; if (!display_on) return; width &= ~1; /* stay on the safe side */ height &= ~1; lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_DIT_HORZ); /* Set start position and window */ lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_WIDTH-1) << 8); ysrc = src[0] + src_y * stride + src_x; usrc = src[1] + (src_y * stride >> 2) + (src_x >> 1); vsrc = src[2] + (src_y * stride >> 2) + (src_x >> 1); ysrc_max = ysrc + height * stride; unsigned long macsr = coldfire_get_macsr(); coldfire_set_macsr(EMAC_SATURATE); do { lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((y + y_offset + 1) << 8) | (y + y_offset)); lcd_write_reg(R_RAM_ADDR_SET, (x << 8) | (y + y_offset)); lcd_begin_write_gram(); memcpy(y_ibuf + width, ysrc, width); memcpy(y_ibuf, ysrc + stride, width); memcpy(c_ibuf, usrc, width >> 1); memcpy(c_ibuf + (width >> 1), vsrc, width >> 1); lcd_write_yuv420_lines(y_ibuf, c_ibuf, width >> 1); y += 2; ysrc += 2 * stride; usrc += stride >> 1; vsrc += stride >> 1; } while (ysrc < ysrc_max); coldfire_set_macsr(macsr); } /* lcd_yuv_blit */ /* Update the display. This must be called after all other LCD functions that change the lcd frame buffer. */ void lcd_update(void) { if (!display_on) return; lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_SOLID_VERT); /* Set start position and window */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((y_offset + LCD_HEIGHT-1) << 8) | y_offset); lcd_write_reg(R_VERT_RAM_ADDR_POS, (LCD_WIDTH-1) << 8); lcd_write_reg(R_RAM_ADDR_SET, y_offset); lcd_begin_write_gram(); lcd_write_data((unsigned short *)FBADDR(0,0), 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_SOLID_VERT); /* Set start position and window */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, ((y_offset + LCD_HEIGHT-1) << 8) | y_offset); lcd_write_reg(R_VERT_RAM_ADDR_POS, ((x + width - 1) << 8) | x); lcd_write_reg(R_RAM_ADDR_SET, (x << 8) | (y + y_offset)); lcd_begin_write_gram(); ptr = (unsigned short *)FBADDR(x,y); do { lcd_write_data(ptr, width); ptr += LCD_WIDTH; } while (++y < ymax); } /* lcd_update_rect */