diff --git a/firmware/SOURCES b/firmware/SOURCES index 8156431e48..369b260c8e 100644 --- a/firmware/SOURCES +++ b/firmware/SOURCES @@ -70,7 +70,7 @@ font.c hangul.c lru.c #if LCD_DEPTH == 1 -drivers/lcd-recorder.c +drivers/lcd-1bit-vert.c #elif LCD_DEPTH == 2 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING drivers/lcd-2bit-horz.c @@ -287,18 +287,21 @@ target/sh/archos/player/lcd-as-player.S #ifdef ARCHOS_RECORDER #ifndef SIMULATOR +target/sh/archos/lcd-archos-bitmap.c target/sh/archos/lcd-as-archos-bitmap.S #endif /* SIMULATOR */ #endif /* ARCHOS_RECORDER */ #if defined(ARCHOS_FMRECORDER) || defined(ARCHOS_RECORDERV2) #ifndef SIMULATOR +target/sh/archos/lcd-archos-bitmap.c target/sh/archos/lcd-as-archos-bitmap.S #endif /* SIMULATOR */ #endif /* ARCHOS_FMRECORDER || ARCHOS_RECORDERV2 */ #if defined(ARCHOS_ONDIOFM) || defined(ARCHOS_ONDIOSP) #ifndef SIMULATOR +target/sh/archos/lcd-archos-bitmap.c target/sh/archos/lcd-as-archos-bitmap.S #endif /* SIMULATOR */ #endif /* ARCHOS_ONDIOFM || ARCHOS_ONDIOFM */ @@ -526,6 +529,7 @@ target/arm/iriver/ifp7xx/power-ifp7xx.c target/arm/iriver/ifp7xx/adc-ifp7xx.c target/arm/iriver/ifp7xx/backlight-ifp7xx.c target/arm/iriver/ifp7xx/button-ifp7xx.c +target/arm/iriver/ifp7xx/lcd-ifp7xx.c target/arm/iriver/ifp7xx/usb-ifp7xx.c #endif #endif diff --git a/firmware/drivers/lcd-recorder.c b/firmware/drivers/lcd-1bit-vert.c old mode 100644 new mode 100755 similarity index 75% rename from firmware/drivers/lcd-recorder.c rename to firmware/drivers/lcd-1bit-vert.c index 5c4a0352a7..6ae92af72b --- a/firmware/drivers/lcd-recorder.c +++ b/firmware/drivers/lcd-1bit-vert.c @@ -33,47 +33,7 @@ /*** definitions ***/ -#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00) -#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10) -#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20) -#define LCD_SET_POWER_CONTROL_REGISTER ((char)0x28) -#define LCD_SET_DISPLAY_START_LINE ((char)0x40) -#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81) -#define LCD_SET_SEGMENT_REMAP ((char)0xA0) -#define LCD_SET_LCD_BIAS ((char)0xA2) -#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4) -#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5) -#define LCD_SET_NORMAL_DISPLAY ((char)0xA6) -#define LCD_SET_REVERSE_DISPLAY ((char)0xA7) -#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8) -#define LCD_SET_BIAS_TC_OSC ((char)0xA9) -#define LCD_SET_1OVER4_BIAS_RATIO ((char)0xAA) -#define LCD_SET_INDICATOR_OFF ((char)0xAC) -#define LCD_SET_INDICATOR_ON ((char)0xAD) -#define LCD_SET_DISPLAY_OFF ((char)0xAE) -#define LCD_SET_DISPLAY_ON ((char)0xAF) -#define LCD_SET_PAGE_ADDRESS ((char)0xB0) -#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0) -#define LCD_SET_TOTAL_FRAME_PHASES ((char)0xD2) -#define LCD_SET_DISPLAY_OFFSET ((char)0xD3) -#define LCD_SET_READ_MODIFY_WRITE_MODE ((char)0xE0) -#define LCD_SOFTWARE_RESET ((char)0xE2) -#define LCD_NOP ((char)0xE3) -#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE ((char)0xEE) - -/* LCD command codes */ -#define LCD_CNTL_RESET 0xe2 /* Software reset */ -#define LCD_CNTL_POWER 0x2f /* Power control */ -#define LCD_CNTL_CONTRAST 0x81 /* Contrast */ -#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */ -#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */ -#define LCD_CNTL_DISPON 0xaf /* Display on */ - -#define LCD_CNTL_PAGE 0xb0 /* Page address */ -#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */ -#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */ - -#define SCROLLABLE_LINES 13 +#define SCROLLABLE_LINES ((LCD_HEIGHT+4)/5 < 32 ? (LCD_HEIGHT+4)/5 : 32) /*** globals ***/ @@ -83,9 +43,6 @@ static int drawmode = DRMODE_SOLID; static int xmargin = 0; static int ymargin = 0; static int curfont = FONT_SYSFIXED; -#ifndef SIMULATOR -static int xoffset; /* needed for flip */ -#endif /* scrolling */ static volatile int scrolling_lines=0; /* Bitpattern of which lines are scrolling */ @@ -104,197 +61,16 @@ static const char scroll_tick_table[16] = { 100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3 }; -/*** driver routines ***/ - -/* optimised archos recorder code is in lcd.S */ - -#if CONFIG_CPU == PNX0101 - -void lcd_write_command(int cmd) -{ - while ((LCDSTAT & 3) != 3); - LCDCMD = cmd; -} - -void lcd_write_data( const unsigned char* data, int count ) -{ - int i; - for (i=0; i < count; i++) { - while ((LCDSTAT & 3) != 3); - LCDDATA = data[i]; - } -} - -#endif - -/*** hardware configuration ***/ - -#ifndef SIMULATOR - -int lcd_default_contrast(void) -{ -#if CONFIG_LCD == LCD_IFP7XX - return 45; -#else - return (read_hw_mask() & LCD_CONTRAST_BIAS) ? 31 : 49; -#endif -} - -void lcd_set_contrast(int val) -{ - lcd_write_command(LCD_CNTL_CONTRAST); - lcd_write_command(val); -} - -void lcd_set_invert_display(bool yesno) -{ - if (yesno) - lcd_write_command(LCD_SET_REVERSE_DISPLAY); - else - lcd_write_command(LCD_SET_NORMAL_DISPLAY); -} - -/* turn the display upside down (call lcd_update() afterwards) */ -void lcd_set_flip(bool yesno) -{ -#ifdef HAVE_DISPLAY_FLIPPED - if (!yesno) -#else - if (yesno) -#endif - { - lcd_write_command(LCD_SET_SEGMENT_REMAP); - lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION); - xoffset = 132 - LCD_WIDTH; /* 132 colums minus the 112 we have */ - } - else - { - lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01); - lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08); -#if CONFIG_LCD == LCD_IFP7XX - xoffset = 4; -#else - xoffset = 0; -#endif - } -} - -#endif /* !SIMULATOR */ - /* LCD init */ -#ifdef SIMULATOR - void lcd_init(void) { - create_thread(scroll_thread, scroll_stack, - sizeof(scroll_stack), scroll_name IF_PRIO(, PRIORITY_USER_INTERFACE)); -} -#else - -void lcd_init(void) -{ -#if CONFIG_CPU == PNX0101 - LCDREG10 = 0xf; - LCDREG04 = 0x4084; -#else - /* Initialize PB0-3 as output pins */ - PBCR2 &= 0xff00; /* MD = 00 */ - PBIOR |= 0x000f; /* IOR = 1 */ -#endif - - /* inits like the original firmware */ - lcd_write_command(LCD_SOFTWARE_RESET); - lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4); -#if CONFIG_LCD == LCD_IFP7XX - lcd_write_command(LCD_SET_LCD_BIAS); -#else - lcd_write_command(LCD_SET_1OVER4_BIAS_RATIO + 0); /* force 1/4 bias: 0 */ -#endif - lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER + 7); - /* power control register: op-amp=1, regulator=1, booster=1 */ - lcd_write_command(LCD_SET_DISPLAY_ON); - lcd_write_command(LCD_SET_NORMAL_DISPLAY); - lcd_set_flip(false); - lcd_write_command(LCD_SET_DISPLAY_START_LINE + 0); - lcd_set_contrast(lcd_default_contrast()); - lcd_write_command(LCD_SET_PAGE_ADDRESS); - lcd_write_command(LCD_SET_LOWER_COLUMN_ADDRESS + 0); - lcd_write_command(LCD_SET_HIGHER_COLUMN_ADDRESS + 0); - lcd_clear_display(); - lcd_update(); - + /* Call device specific init */ + lcd_init_device(); create_thread(scroll_thread, scroll_stack, sizeof(scroll_stack), scroll_name IF_PRIO(, PRIORITY_USER_INTERFACE)); } -/*** Update functions ***/ - -/* Performance function that works with an external buffer - note that by and bheight are in 8-pixel units! */ -void lcd_blit(const unsigned char* data, int x, int by, int width, - int bheight, int stride) -{ - /* Copy display bitmap to hardware */ - while (bheight--) - { - lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf)); - lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset)>>4) & 0xf)); - lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf)); - - lcd_write_data(data, width); - data += stride; - } -} - - -/* Update the display. - This must be called after all other LCD functions that change the display. */ -void lcd_update(void) ICODE_ATTR; -void lcd_update(void) -{ - int y; - - /* Copy display bitmap to hardware */ - for (y = 0; y < LCD_HEIGHT/8; y++) - { - lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); - lcd_write_command (LCD_CNTL_HIGHCOL | ((xoffset >> 4) & 0xf)); - lcd_write_command (LCD_CNTL_LOWCOL | (xoffset & 0xf)); - - lcd_write_data (lcd_framebuffer[y], LCD_WIDTH); - } -} - -/* Update a fraction of the display. */ -void lcd_update_rect(int, int, int, int) ICODE_ATTR; -void lcd_update_rect(int x, int y, int width, int height) -{ - int ymax; - - /* The Y coordinates have to work on even 8 pixel rows */ - ymax = (y + height-1) >> 3; - y >>= 3; - - if(x + width > LCD_WIDTH) - width = LCD_WIDTH - x; - if (width <= 0) - return; /* nothing left to do, 0 is harmful to lcd_write_data() */ - if(ymax >= LCD_HEIGHT/8) - ymax = LCD_HEIGHT/8-1; - - /* Copy specified rectange bitmap to hardware */ - for (; y <= ymax; y++) - { - lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); - lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset) >> 4) & 0xf)); - lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf)); - - lcd_write_data (&lcd_framebuffer[y][x], width); - } -} -#endif /* !SIMULATOR */ - /*** parameter handling ***/ void lcd_set_drawmode(int mode) diff --git a/firmware/target/arm/iriver/ifp7xx/lcd-ifp7xx.c b/firmware/target/arm/iriver/ifp7xx/lcd-ifp7xx.c new file mode 100755 index 0000000000..ca4a01b52e --- /dev/null +++ b/firmware/target/arm/iriver/ifp7xx/lcd-ifp7xx.c @@ -0,0 +1,208 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Alan Korr + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "config.h" + +#include "kernel.h" +#include "lcd.h" +#include "system.h" + +/*** definitions ***/ + +#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00) +#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10) +#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20) +#define LCD_SET_POWER_CONTROL_REGISTER ((char)0x28) +#define LCD_SET_DISPLAY_START_LINE ((char)0x40) +#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81) +#define LCD_SET_SEGMENT_REMAP ((char)0xA0) +#define LCD_SET_LCD_BIAS ((char)0xA2) +#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4) +#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5) +#define LCD_SET_NORMAL_DISPLAY ((char)0xA6) +#define LCD_SET_REVERSE_DISPLAY ((char)0xA7) +#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8) +#define LCD_SET_BIAS_TC_OSC ((char)0xA9) +#define LCD_SET_1OVER4_BIAS_RATIO ((char)0xAA) +#define LCD_SET_INDICATOR_OFF ((char)0xAC) +#define LCD_SET_INDICATOR_ON ((char)0xAD) +#define LCD_SET_DISPLAY_OFF ((char)0xAE) +#define LCD_SET_DISPLAY_ON ((char)0xAF) +#define LCD_SET_PAGE_ADDRESS ((char)0xB0) +#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0) +#define LCD_SET_TOTAL_FRAME_PHASES ((char)0xD2) +#define LCD_SET_DISPLAY_OFFSET ((char)0xD3) +#define LCD_SET_READ_MODIFY_WRITE_MODE ((char)0xE0) +#define LCD_SOFTWARE_RESET ((char)0xE2) +#define LCD_NOP ((char)0xE3) +#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE ((char)0xEE) + +/* LCD command codes */ +#define LCD_CNTL_RESET 0xe2 /* Software reset */ +#define LCD_CNTL_POWER 0x2f /* Power control */ +#define LCD_CNTL_CONTRAST 0x81 /* Contrast */ +#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */ +#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */ +#define LCD_CNTL_DISPON 0xaf /* Display on */ + +#define LCD_CNTL_PAGE 0xb0 /* Page address */ +#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */ +#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */ + +/*** driver routines ***/ + +void lcd_write_command(int cmd) +{ + while ((LCDSTAT & 3) != 3); + LCDCMD = cmd; +} + +void lcd_write_data( const unsigned char* data, int count ) +{ + int i; + for (i=0; i < count; i++) { + while ((LCDSTAT & 3) != 3); + LCDDATA = data[i]; + } +} + +/*** hardware configuration ***/ + +int lcd_default_contrast(void) +{ + return 45; +} + +void lcd_set_contrast(int val) +{ + lcd_write_command(LCD_CNTL_CONTRAST); + lcd_write_command(val); +} + +void lcd_set_invert_display(bool yesno) +{ + if (yesno) + lcd_write_command(LCD_SET_REVERSE_DISPLAY); + else + lcd_write_command(LCD_SET_NORMAL_DISPLAY); +} + +/* turn the display upside down (call lcd_update() afterwards) */ +void lcd_set_flip(bool yesno) +{ + if (yesno) + { + lcd_write_command(LCD_SET_SEGMENT_REMAP); + lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION); + } + else + { + lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01); + lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08); + } +} + +void lcd_init_device(void) +{ + LCDREG10 = 0xf; + LCDREG04 = 0x4084; + + /* inits like the original firmware */ + lcd_write_command(LCD_SOFTWARE_RESET); + lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4); + lcd_write_command(LCD_SET_LCD_BIAS); + lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER + 7); + /* power control register: op-amp=1, regulator=1, booster=1 */ + lcd_write_command(LCD_SET_DISPLAY_ON); + lcd_write_command(LCD_SET_NORMAL_DISPLAY); + lcd_set_flip(false); + lcd_write_command(LCD_SET_DISPLAY_START_LINE + 0); + lcd_set_contrast(lcd_default_contrast()); + lcd_write_command(LCD_SET_PAGE_ADDRESS); + lcd_write_command(LCD_SET_LOWER_COLUMN_ADDRESS + 0); + lcd_write_command(LCD_SET_HIGHER_COLUMN_ADDRESS + 0); + + lcd_clear_display(); + lcd_update(); +} + +/*** Update functions ***/ + +/* Performance function that works with an external buffer + note that by and bheight are in 8-pixel units! */ +void lcd_blit(const unsigned char* data, int x, int by, int width, + int bheight, int stride) +{ + /* Copy display bitmap to hardware */ + while (bheight--) + { + lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+4)>>4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+4) & 0xf)); + + lcd_write_data(data, width); + data += stride; + } +} + + +/* Update the display. + This must be called after all other LCD functions that change the display. */ +void lcd_update(void) ICODE_ATTR; +void lcd_update(void) +{ + int y; + + /* Copy display bitmap to hardware */ + for (y = 0; y < LCD_HEIGHT/8; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL); + lcd_write_command (LCD_CNTL_LOWCOL | 4); + + lcd_write_data (lcd_framebuffer[y], LCD_WIDTH); + } +} + +/* Update a fraction of the display. */ +void lcd_update_rect(int, int, int, int) ICODE_ATTR; +void lcd_update_rect(int x, int y, int width, int height) +{ + int ymax; + + /* The Y coordinates have to work on even 8 pixel rows */ + ymax = (y + height-1) >> 3; + y >>= 3; + + if(x + width > LCD_WIDTH) + width = LCD_WIDTH - x; + if (width <= 0) + return; /* nothing left to do, 0 is harmful to lcd_write_data() */ + if(ymax >= LCD_HEIGHT/8) + ymax = LCD_HEIGHT/8-1; + + /* Copy specified rectange bitmap to hardware */ + for (; y <= ymax; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+4) >> 4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+4) & 0xf)); + + lcd_write_data (&lcd_framebuffer[y][x], width); + } +} diff --git a/firmware/target/sh/archos/lcd-archos-bitmap.c b/firmware/target/sh/archos/lcd-archos-bitmap.c new file mode 100755 index 0000000000..8b57099206 --- /dev/null +++ b/firmware/target/sh/archos/lcd-archos-bitmap.c @@ -0,0 +1,203 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Alan Korr + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "config.h" + +#include "hwcompat.h" +#include "kernel.h" +#include "lcd.h" +#include "system.h" + +/*** definitions ***/ + +#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00) +#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10) +#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20) +#define LCD_SET_POWER_CONTROL_REGISTER ((char)0x28) +#define LCD_SET_DISPLAY_START_LINE ((char)0x40) +#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81) +#define LCD_SET_SEGMENT_REMAP ((char)0xA0) +#define LCD_SET_LCD_BIAS ((char)0xA2) +#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4) +#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5) +#define LCD_SET_NORMAL_DISPLAY ((char)0xA6) +#define LCD_SET_REVERSE_DISPLAY ((char)0xA7) +#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8) +#define LCD_SET_BIAS_TC_OSC ((char)0xA9) +#define LCD_SET_1OVER4_BIAS_RATIO ((char)0xAA) +#define LCD_SET_INDICATOR_OFF ((char)0xAC) +#define LCD_SET_INDICATOR_ON ((char)0xAD) +#define LCD_SET_DISPLAY_OFF ((char)0xAE) +#define LCD_SET_DISPLAY_ON ((char)0xAF) +#define LCD_SET_PAGE_ADDRESS ((char)0xB0) +#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0) +#define LCD_SET_TOTAL_FRAME_PHASES ((char)0xD2) +#define LCD_SET_DISPLAY_OFFSET ((char)0xD3) +#define LCD_SET_READ_MODIFY_WRITE_MODE ((char)0xE0) +#define LCD_SOFTWARE_RESET ((char)0xE2) +#define LCD_NOP ((char)0xE3) +#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE ((char)0xEE) + +/* LCD command codes */ +#define LCD_CNTL_RESET 0xe2 /* Software reset */ +#define LCD_CNTL_POWER 0x2f /* Power control */ +#define LCD_CNTL_CONTRAST 0x81 /* Contrast */ +#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */ +#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */ +#define LCD_CNTL_DISPON 0xaf /* Display on */ + +#define LCD_CNTL_PAGE 0xb0 /* Page address */ +#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */ +#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */ + +/** globals **/ + +static int xoffset; /* needed for flip */ + +/*** hardware configuration ***/ + +int lcd_default_contrast(void) +{ + return (read_hw_mask() & LCD_CONTRAST_BIAS) ? 31 : 49; +} + +void lcd_set_contrast(int val) +{ + lcd_write_command(LCD_CNTL_CONTRAST); + lcd_write_command(val); +} + +void lcd_set_invert_display(bool yesno) +{ + if (yesno) + lcd_write_command(LCD_SET_REVERSE_DISPLAY); + else + lcd_write_command(LCD_SET_NORMAL_DISPLAY); +} + +/* turn the display upside down (call lcd_update() afterwards) */ +void lcd_set_flip(bool yesno) +{ +#ifdef HAVE_DISPLAY_FLIPPED + if (!yesno) +#else + if (yesno) +#endif + { + lcd_write_command(LCD_SET_SEGMENT_REMAP); + lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION); + xoffset = 132 - LCD_WIDTH; /* 132 colums minus the 112 we have */ + } + else + { + lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01); + lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08); + xoffset = 0; + } +} + +void lcd_init_device(void) +{ + /* Initialize PB0-3 as output pins */ + PBCR2 &= 0xff00; /* MD = 00 */ + PBIOR |= 0x000f; /* IOR = 1 */ + + /* inits like the original firmware */ + lcd_write_command(LCD_SOFTWARE_RESET); + lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4); + lcd_write_command(LCD_SET_1OVER4_BIAS_RATIO + 0); /* force 1/4 bias: 0 */ + lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER + 7); + /* power control register: op-amp=1, regulator=1, booster=1 */ + lcd_write_command(LCD_SET_DISPLAY_ON); + lcd_write_command(LCD_SET_NORMAL_DISPLAY); + lcd_set_flip(false); + lcd_write_command(LCD_SET_DISPLAY_START_LINE + 0); + lcd_set_contrast(lcd_default_contrast()); + lcd_write_command(LCD_SET_PAGE_ADDRESS); + lcd_write_command(LCD_SET_LOWER_COLUMN_ADDRESS + 0); + lcd_write_command(LCD_SET_HIGHER_COLUMN_ADDRESS + 0); + + lcd_clear_display(); + lcd_update(); +} + +/*** Update functions ***/ + +/* Performance function that works with an external buffer + note that by and bheight are in 8-pixel units! */ +void lcd_blit(const unsigned char* data, int x, int by, int width, + int bheight, int stride) +{ + /* Copy display bitmap to hardware */ + while (bheight--) + { + lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset)>>4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf)); + + lcd_write_data(data, width); + data += stride; + } +} + + +/* Update the display. + This must be called after all other LCD functions that change the display. */ +void lcd_update(void) ICODE_ATTR; +void lcd_update(void) +{ + int y; + + /* Copy display bitmap to hardware */ + for (y = 0; y < LCD_HEIGHT/8; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | ((xoffset >> 4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | (xoffset & 0xf)); + + lcd_write_data (lcd_framebuffer[y], LCD_WIDTH); + } +} + +/* Update a fraction of the display. */ +void lcd_update_rect(int, int, int, int) ICODE_ATTR; +void lcd_update_rect(int x, int y, int width, int height) +{ + int ymax; + + /* The Y coordinates have to work on even 8 pixel rows */ + ymax = (y + height-1) >> 3; + y >>= 3; + + if(x + width > LCD_WIDTH) + width = LCD_WIDTH - x; + if (width <= 0) + return; /* nothing left to do, 0 is harmful to lcd_write_data() */ + if(ymax >= LCD_HEIGHT/8) + ymax = LCD_HEIGHT/8-1; + + /* Copy specified rectange bitmap to hardware */ + for (; y <= ymax; y++) + { + lcd_write_command (LCD_CNTL_PAGE | (y & 0xf)); + lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset) >> 4) & 0xf)); + lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf)); + + lcd_write_data (&lcd_framebuffer[y][x], width); + } +}