From 9272dfd34c71fc8c0eeef2afc8405a595f660c39 Mon Sep 17 00:00:00 2001 From: Barry Wardell Date: Sun, 20 Aug 2006 10:18:47 +0000 Subject: Functional, but minimal LCD driver for H10. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10663 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/iriver/h10/lcd-h10.c | 398 ++++++++++++------------------- 1 file changed, 153 insertions(+), 245 deletions(-) (limited to 'firmware/target') diff --git a/firmware/target/arm/iriver/h10/lcd-h10.c b/firmware/target/arm/iriver/h10/lcd-h10.c index 3640aa1ba1..022dc22208 100644 --- a/firmware/target/arm/iriver/h10/lcd-h10.c +++ b/firmware/target/arm/iriver/h10/lcd-h10.c @@ -16,252 +16,133 @@ * KIND, either express or implied. * ****************************************************************************/ - -/* The H10 display possibly identical to that of the X5, so that code was used here - but left #if 0'ed out for the moment */ - #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" -static bool display_on=false; /* is the display turned on? */ +/* check if number of useconds has past */ +static inline bool timer_check(int clock_start, int usecs) +{ + return ((int)(USEC_TIMER - clock_start)) >= usecs; +} -#define LCD_CMD *(volatile unsigned short *)0x70003008 /* or maybe 0x70008a0c */ -#define LCD_DATA *(volatile unsigned short *)0x70003010 +/* Hardware address of LCD. Bits are: + * 31 - set to write, poll for completion. + * 24 - 0 for command, 1 for data + * 7..0 - command/data to send + * Commands/Data are always sent in 16-bits, msb first. + */ +#define LCD_BASE *(volatile unsigned int *)0x70008a0c +#define LCD_BUSY_MASK 0x80000000 +#define LCD_CMD 0x80000000 +#define LCD_DATA 0x81000000 /* register defines for the Renesas HD66773R */ -#define R_HORIZ_RAM_ADDR_POS 0x16 -#define R_VERT_RAM_ADDR_POS 0x17 +#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 0x44 +#define R_VERT_RAM_ADDR_POS 0x45 +#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 void lcd_wait_write(void) +{ + if ((LCD_BASE & LCD_BUSY_MASK) != 0) { + int start = USEC_TIMER; -/***************************************************** -The table below was generated by the following script: - -#!/usr/bin/perl - -# high byte table -print "short high8to9[] = {\n"; -$str = " "; -for my $m (0 .. 255) { - # RRRRRGGG => RRRRR0GGG - my $v = (($m & 0xF8) << 1) | ($m & 0x07); - if(length($str) > 75) { - print "$str\n"; - $str=" "; + do { + if ((LCD_BASE & LCD_BUSY_MASK) == 0) break; + } while (timer_check(start, 1000) == 0); } - $str .= sprintf("0x%03x, ", $v); } -print "$str\n};\n"; - -*****************************************************/ - -/* Lookup table for 16->18bit conversion, high byte. The low byte is just - shifted. */ -const short high8to9[] ICONST_ATTR = { - 0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007, 0x010, 0x011, 0x012, - 0x013, 0x014, 0x015, 0x016, 0x017, 0x020, 0x021, 0x022, 0x023, 0x024, 0x025, - 0x026, 0x027, 0x030, 0x031, 0x032, 0x033, 0x034, 0x035, 0x036, 0x037, 0x040, - 0x041, 0x042, 0x043, 0x044, 0x045, 0x046, 0x047, 0x050, 0x051, 0x052, 0x053, - 0x054, 0x055, 0x056, 0x057, 0x060, 0x061, 0x062, 0x063, 0x064, 0x065, 0x066, - 0x067, 0x070, 0x071, 0x072, 0x073, 0x074, 0x075, 0x076, 0x077, 0x080, 0x081, - 0x082, 0x083, 0x084, 0x085, 0x086, 0x087, 0x090, 0x091, 0x092, 0x093, 0x094, - 0x095, 0x096, 0x097, 0x0a0, 0x0a1, 0x0a2, 0x0a3, 0x0a4, 0x0a5, 0x0a6, 0x0a7, - 0x0b0, 0x0b1, 0x0b2, 0x0b3, 0x0b4, 0x0b5, 0x0b6, 0x0b7, 0x0c0, 0x0c1, 0x0c2, - 0x0c3, 0x0c4, 0x0c5, 0x0c6, 0x0c7, 0x0d0, 0x0d1, 0x0d2, 0x0d3, 0x0d4, 0x0d5, - 0x0d6, 0x0d7, 0x0e0, 0x0e1, 0x0e2, 0x0e3, 0x0e4, 0x0e5, 0x0e6, 0x0e7, 0x0f0, - 0x0f1, 0x0f2, 0x0f3, 0x0f4, 0x0f5, 0x0f6, 0x0f7, 0x100, 0x101, 0x102, 0x103, - 0x104, 0x105, 0x106, 0x107, 0x110, 0x111, 0x112, 0x113, 0x114, 0x115, 0x116, - 0x117, 0x120, 0x121, 0x122, 0x123, 0x124, 0x125, 0x126, 0x127, 0x130, 0x131, - 0x132, 0x133, 0x134, 0x135, 0x136, 0x137, 0x140, 0x141, 0x142, 0x143, 0x144, - 0x145, 0x146, 0x147, 0x150, 0x151, 0x152, 0x153, 0x154, 0x155, 0x156, 0x157, - 0x160, 0x161, 0x162, 0x163, 0x164, 0x165, 0x166, 0x167, 0x170, 0x171, 0x172, - 0x173, 0x174, 0x175, 0x176, 0x177, 0x180, 0x181, 0x182, 0x183, 0x184, 0x185, - 0x186, 0x187, 0x190, 0x191, 0x192, 0x193, 0x194, 0x195, 0x196, 0x197, 0x1a0, - 0x1a1, 0x1a2, 0x1a3, 0x1a4, 0x1a5, 0x1a6, 0x1a7, 0x1b0, 0x1b1, 0x1b2, 0x1b3, - 0x1b4, 0x1b5, 0x1b6, 0x1b7, 0x1c0, 0x1c1, 0x1c2, 0x1c3, 0x1c4, 0x1c5, 0x1c6, - 0x1c7, 0x1d0, 0x1d1, 0x1d2, 0x1d3, 0x1d4, 0x1d5, 0x1d6, 0x1d7, 0x1e0, 0x1e1, - 0x1e2, 0x1e3, 0x1e4, 0x1e5, 0x1e6, 0x1e7, 0x1f0, 0x1f1, 0x1f2, 0x1f3, 0x1f4, - 0x1f5, 0x1f6, 0x1f7, -}; - -/* called very frequently - inline! */ -inline void lcd_write_reg(int reg, int val) + +/* Send command */ +static void lcd_send_cmd(int v) { - LCD_CMD = (reg >> 8) << 1; - LCD_CMD = (reg & 0xff) << 1; - LCD_DATA = (val >> 8) << 1; - LCD_DATA = (val & 0xff) << 1; + lcd_wait_write(); + LCD_BASE = 0x00000000 | LCD_CMD; + LCD_BASE = v | LCD_CMD; } -/* called very frequently - inline! */ -inline void lcd_begin_write_gram(void) +/* Send 16-bit data */ +static void lcd_send_data(int v) { - LCD_CMD = (R_WRITE_DATA_2_GRAM >> 8) << 1; - LCD_CMD = (R_WRITE_DATA_2_GRAM & 0xff) << 1; + lcd_wait_write(); + LCD_BASE = ( v & 0xff) | LCD_DATA; /* Send MSB first */ + LCD_BASE = ((v>>8) & 0xff) | LCD_DATA; } -/* called very frequently - inline! */ -inline void lcd_write_data(const unsigned short* p_bytes, int count) ICODE_ATTR; -inline void lcd_write_data(const unsigned short* p_bytes, int count) +/* Send two 16-bit data */ +static void lcd_send_data2(int v) { - unsigned int tmp; - unsigned int *ptr = (unsigned int *)p_bytes; - bool extra; - - /* if there's on odd number of pixels, remmber this and output the - trailing pixel after the loop */ - extra = (count&1)?true:false; - - count >>= 1; - while(count--) { - tmp = *ptr++; - LCD_DATA = high8to9[tmp >> 24]; - LCD_DATA = tmp>>15; - LCD_DATA = high8to9[(tmp >> 8)&255]; - LCD_DATA = tmp<<1; - } - if(extra) { - /* the final "spare" pixel */ - unsigned short read = *(unsigned short *)ptr; - LCD_DATA = high8to9[read >> 8]; - LCD_DATA = read<<1; - } + unsigned int vsr = v; + lcd_send_data(vsr); + vsr = v >> 16; + lcd_send_data(vsr); } -/*** hardware configuration ***/ -int lcd_default_contrast(void) -{ - return 16; -} +/*** hardware configuration ***/ void lcd_set_contrast(int val) { - if (val >= 15) // val must'nt be 15 or 31 - ++val; - if (val > 30) - return; - - lcd_write_reg(0x0e, 0x201e + (val << 8)); + /* TODO: Implement lcd_set_contrast() */ + (void)val; } void lcd_set_invert_display(bool yesno) { - (void)yesno; + /* TODO: Implement lcd_set_invert_display() */ + (void)yesno; } /* turn the display upside down (call lcd_update() afterwards) */ void lcd_set_flip(bool yesno) { - (void)yesno; -} - -/* Rolls up the lcd display by the specified amount of lines. - * Lines that are rolled out over the top of the screen are - * rolled in from the bottom again. This is a hardware - * remapping only and all operations on the lcd are affected. - * -> - * @param int lines - The number of lines that are rolled. - * The value must be 0 <= pixels < LCD_HEIGHT. */ -void lcd_roll(int lines) -{ - (void)lines; + /* TODO: Implement lcd_set_flip() */ + (void)yesno; } -/* LCD init - * These settings are taken from the original X5 firmware - */ +/* LCD init */ void lcd_init_device(void) -{ - display_on=true; - -#if 0 - /* 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_write_reg(0, 0x0001); - - sleep(HZ/50); - - lcd_write_reg(0x0d, 0x0401); - lcd_write_reg(0x0e, 0x321e); - lcd_write_reg(0x01, 0x0313); - lcd_write_reg(0x02, 0x0700); - lcd_write_reg(0x05, 0x9038); - lcd_write_reg(0x06, 0x0000); - lcd_write_reg(0x0b, 0x4000); - - sleep(HZ/100); - - lcd_write_reg(0x21,0x0000); - lcd_write_reg(0x30,0x0003); - lcd_write_reg(0x31,0x0400); - lcd_write_reg(0x32,0x0407); - lcd_write_reg(0x33,0x0305); - lcd_write_reg(0x34,0x0003); - lcd_write_reg(0x35,0x0704); - lcd_write_reg(0x36,0x0407); - lcd_write_reg(0x37,0x0503); - lcd_write_reg(0x0f,0x0002); - lcd_write_reg(0x11,0x0000); - lcd_write_reg(0x14,0x9f00); - lcd_write_reg(0x15,0x5c00); - lcd_write_reg(0x16,0x7f00); - lcd_write_reg(0x17,0x9f00); - lcd_write_reg(0x3a,0x1409); - lcd_write_reg(0x3b,0x0602); - - lcd_write_reg(0x0c,0x0001); - - sleep(HZ/25); - - lcd_write_reg(0x03,0x002c); - lcd_write_reg(0x04,0x8000); - - sleep(HZ/25); - - lcd_write_reg(0x0e,0x3318); - - sleep(HZ/25); - - lcd_write_reg(0x0d,0x0411); - - sleep(HZ/100); - - lcd_write_reg(0x07,0x0006); - lcd_write_reg(0x07,0x036); - lcd_write_reg(0x07,0x037); - lcd_write_reg(0x07,0x0037); - return; -#endif -} - -void lcd_enable(bool on) -{ - display_on = on; +{ + /* H10 LCD is initialised by the bootloader */ } /*** update functions ***/ /* Performance function that works with an external buffer - note that by and bheight are in 8-pixel units! */ + note that by and bheight are in 4-pixel units! */ void lcd_blit(const fb_data* data, int x, int by, int width, int bheight, int stride) { @@ -272,56 +153,83 @@ void lcd_blit(const fb_data* data, int x, int by, int width, (void)width; (void)bheight; (void)stride; - /*if(display_on)*/ } -/* 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) -{ - if(display_on){ - /* Copy display bitmap to hardware */ - lcd_write_reg(R_RAM_ADDR_SET, 0x0000); - lcd_begin_write_gram(); - lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT); - } -} /* 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) { - if(display_on) { - int ymax = y + height; - - 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) - ymax = LCD_HEIGHT-1; - - /* set update window */ - - /* horiz ram addr */ - lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (ymax<<8) | y); - - /* vert ram addr */ - lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+width-1)<<8) | x); - lcd_write_reg(R_RAM_ADDR_SET, (x<<8) | y); - lcd_begin_write_gram(); - - /* Copy specified rectangle bitmap to hardware */ - for (; y <= ymax; y++) - { - lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width); - } - - /* reset update window */ - lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00); - lcd_write_reg(R_VERT_RAM_ADDR_POS, 0x9f00); + int y0, x0, y1, x1; + int newx,newwidth; + + unsigned long *addr = (unsigned long *)lcd_framebuffer; + + /* Ensure x and width are both even - so we can read 32-bit aligned + data from lcd_framebuffer */ + /*newx=x&~1; + newwidth=width&~1; + if (newx+newwidth < x+width) { newwidth+=2; } + x=newx; width=newwidth;*/ + + /* calculate the drawing region */ + y0 = x; /* start horiz */ + x0 = y; /* start vert */ + y1 = (x + width) - 1; /* max horiz */ + x1 = (y + height) - 1; /* max vert */ + + + /* swap max horiz < start horiz */ + if (y1 < y0) { + int t; + t = y0; + y0 = y1; + y1 = t; + } + + /* swap max vert < start vert */ + if (x1 < x0) { + int t; + t = x0; + x0 = x1; + x1 = t; } + + /* max horiz << 8 | start horiz */ + lcd_send_cmd(R_HORIZ_RAM_ADDR_POS); + lcd_send_data((y0 << 8) | y1); + /* max vert << 8 | start vert */ + lcd_send_cmd(R_VERT_RAM_ADDR_POS); + lcd_send_data((x0 << 8) | x1); + + /* position cursor (set AD0-AD15) */ + /* start vert << 8 | start horiz */ + lcd_send_cmd(R_RAM_ADDR_SET); + lcd_send_data(((x0 << 8) | y0)); + + /* start drawing */ + lcd_send_cmd(R_WRITE_DATA_2_GRAM); + + addr = (unsigned long*)&lcd_framebuffer[y][x]; + + int c, r; + + /* for each row */ + for (r = 0; r < height; r++) { + /* for each column */ + for (c = 0; c < width; c += 2) { + /* output 2 pixels */ + lcd_send_data2(*(addr++)); + } + + addr += (LCD_WIDTH - width)/2; + } +} + +/* 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); } -- cgit v1.2.3