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rockbox/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c
Karl Kurbjun 7b4d709f9d M:Robe 500: Add support for DMA based LCD updates when in Portrait mode. TestFPS measures 190 FPS with the DMA updates vs. 58 FPS for the non-DMA updates. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22435 a1c6a512-1295-4272-9138-f99709370657
2009-08-20 00:36:39 +00:00

754 lines
20 KiB
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Karl Kurbjun
*
* Some of this is based on the Cowon A2 Firmware release:
* http://www.cowonglobal.com/download/gnu/cowon_pmp_a2_src_1.59_GPL.tar.gz
*
* 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 "string.h"
#include "kernel.h"
#include "memory.h"
#include "system-target.h"
#include "lcd.h"
#include "lcd-target.h"
#include "dsp-target.h"
#include "dsp/ipc.h"
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#define PORTRAIT_USE_DMA
#else
/* Very slow - May be faster if the DSP has lower latency access to buffer.
Using the DSP instead of ARM to do transformation has not been tried
*/
//#define LANDSCAPE_USE_DMA
#endif
/* Copies a rectangle from one framebuffer to another. Can be used in
single transfer mode with width = num pixels, and height = 1 which
allows a full-width rectangle to be copied more efficiently. */
extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
int width, int height);
#if defined(HAVE_LCD_SLEEP)
static bool lcd_on = true;
#endif
/*
** These are imported from lcd-16bit.c
*/
extern unsigned fg_pattern;
extern unsigned bg_pattern;
#if defined(HAVE_LCD_SLEEP)
bool lcd_active(void)
{
return lcd_on;
}
#endif
#if defined(HAVE_LCD_SLEEP)
void lcd_sleep()
{
if (lcd_on)
{
lcd_on = false;
memset16(FRAME, 0xFFFF, LCD_WIDTH*LCD_HEIGHT);
sleep(HZ/5);
/* Disabling these saves another ~15mA */
IO_OSD_OSDWINMD0 &= ~(0x01);
IO_VID_ENC_VMOD &= ~(0x01);
/* Disabling the LCD saves ~50mA */
IO_GIO_BITCLR2=1<<4;
}
}
void lcd_awake(void)
{
/* "enabled" implies "powered" */
if (!lcd_on)
{
lcd_on=true;
IO_OSD_OSDWINMD0 |= 0x01;
IO_VID_ENC_VMOD |= 0x01;
sleep(2);
IO_GIO_BITSET2 = 1<<4;
lcd_update();
/* Wait long enough for a frame to be written */
sleep(HZ/10);
lcd_activation_call_hook();
}
}
#endif
/* Note this is expecting a screen size of 480x640 or 240x320, other screen
* sizes need to be considered for fudge factors
*/
#define LCD_FUDGE LCD_NATIVE_WIDTH%32
/* LCD init - based on code from ingenient-bsp/bootloader/board/dm320/splash.c
* and code by Catalin Patulea from the M:Robe 500i linux port
*/
void lcd_init_device(void)
{
unsigned int addr;
/* Clear the Frame */
memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT);
IO_OSD_OSDWINMD0 &= ~(0x0001);
IO_OSD_VIDWINMD &= ~(0x0001);
/* Setup the LCD controller */
IO_VID_ENC_VMOD = 0x2014;
IO_VID_ENC_VDCTL = 0x2000;
IO_VID_ENC_VDPRO = 0x0000;
IO_VID_ENC_SYNCTL = 0x100E;
IO_VID_ENC_HSPLS = 1; /* HSYNC pulse width */
IO_VID_ENC_VSPLS = 1; /* VSYNC pulse width */
/* These calculations support 640x480 and 320x240 (based on OF) */
IO_VID_ENC_HINT = LCD_NATIVE_WIDTH+LCD_NATIVE_WIDTH/3;
IO_VID_ENC_HSTART = LCD_NATIVE_WIDTH/6; /* Back porch */
IO_VID_ENC_HVALID = LCD_NATIVE_WIDTH; /* Data valid */
IO_VID_ENC_VINT = LCD_NATIVE_HEIGHT+8;
IO_VID_ENC_VSTART = 2;
IO_VID_ENC_VVALID = LCD_NATIVE_HEIGHT;
IO_VID_ENC_HSDLY = 0x0000;
IO_VID_ENC_VSDLY = 0x0000;
IO_VID_ENC_YCCTL = 0x0000;
IO_VID_ENC_RGBCTL = 0x0000;
IO_VID_ENC_RGBCLP = 0xFF00;
IO_VID_ENC_LNECTL = 0x0000;
IO_VID_ENC_CULLLNE = 0x0000;
IO_VID_ENC_LCDOUT = 0x0000;
IO_VID_ENC_BRTS = 0x0000;
IO_VID_ENC_BRTW = 0x0000;
IO_VID_ENC_ACCTL = 0x0000;
IO_VID_ENC_PWMP = 0x0000;
IO_VID_ENC_PWMW = 0x0000;
IO_VID_ENC_DCLKPTN0 = 0x0001;
/* Setup the display */
IO_OSD_MODE = 0x00ff;
IO_OSD_ATRMD = 0x0000;
IO_OSD_RECTCUR = 0x0000;
IO_OSD_BASEPX = IO_VID_ENC_HSTART;
IO_OSD_BASEPY = IO_VID_ENC_VSTART;
addr = ((int)FRAME-CONFIG_SDRAM_START) / 32;
/* Setup the OSD windows */
/* Used for 565 RGB */
IO_OSD_OSDWINMD0 = 0x30C0;
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH *2 / 32;
IO_OSD_OSDWINADH = addr >> 16;
IO_OSD_OSDWIN0ADL = addr & 0xFFFF;
IO_OSD_OSDWIN0XP = 0;
IO_OSD_OSDWIN0YP = 0;
/* read from OF */
IO_OSD_OSDWIN0XL = LCD_NATIVE_WIDTH;
IO_OSD_OSDWIN0YL = LCD_NATIVE_HEIGHT;
/* Unused */
IO_OSD_OSDWINMD1 = 0x10C0;
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_OSDWIN1OFST = LCD_NATIVE_WIDTH / 32+1;
#else
IO_OSD_OSDWIN1OFST = LCD_NATIVE_WIDTH / 32;
#endif
IO_OSD_OSDWIN1ADL = addr & 0xFFFF;
IO_OSD_OSDWIN1XP = 0;
IO_OSD_OSDWIN1YP = 0;
IO_OSD_OSDWIN1XL = LCD_NATIVE_WIDTH;
IO_OSD_OSDWIN1YL = LCD_NATIVE_HEIGHT;
IO_OSD_VIDWINMD = 0x0000;
addr = ((int)FRAME2-CONFIG_SDRAM_START +
2*(LCD_NATIVE_WIDTH*(LCD_NATIVE_HEIGHT-320)/2+
(LCD_NATIVE_WIDTH-240)/2))/ 32;
/* This is a bit messy, the LCD transfers appear to happen in chunks of 32
* pixels. (based on OF)
*/
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_VIDWIN0OFST = LCD_NATIVE_WIDTH * 2 / 32+1;
#else
IO_OSD_VIDWIN0OFST = LCD_NATIVE_WIDTH * 2 / 32;
#endif
IO_OSD_VIDWINADH = addr >> 16;
IO_OSD_VIDWIN0ADL = addr & 0xFFFF;
IO_OSD_VIDWIN0XP = 0;
IO_OSD_VIDWIN0YP = 0;
IO_OSD_VIDWIN0XL = LCD_NATIVE_WIDTH;
IO_OSD_VIDWIN0YL = LCD_NATIVE_HEIGHT;
/* Set pin 36 and 35 (LCD POWER and LCD RESOLUTION) to an output */
IO_GIO_DIR2 &= ~(3<<3);
#if LCD_NATIVE_HEIGHT > 320
/* Set LCD resolution to VGA */
IO_GIO_BITSET2 = 1<<3;
#else
/* Set LCD resolution to QVGA */
IO_GIO_BITCLR2 = 1<<3;
#endif
IO_OSD_OSDWINMD0 |= 0x01;
IO_VID_ENC_VMOD |= 0x01;
}
#if defined(HAVE_LCD_MODES)
void lcd_set_mode(int mode)
{
if(mode==LCD_MODE_YUV) {
/* Turn off the RGB buffer and enable the YUV buffer with zoom */
IO_OSD_OSDWINMD0 |= 0x04;
IO_OSD_VIDWINMD |= 0x01;
#if LCD_NATIVE_WIDTH > 240
IO_OSD_VIDWINMD |= (0x05<<2); /* This does a 2x zoom */
#endif
memset16(FRAME2, 0x0080, LCD_NATIVE_HEIGHT*(LCD_NATIVE_WIDTH+LCD_FUDGE));
} else if(mode==LCD_MODE_RGB565) {
/* Turn on the RGB window, set it to 16 bit and turn YUV window off */
IO_OSD_VIDWINMD &= ~(0x01);
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 16;
IO_OSD_OSDWINMD0 |= (1<<13);
IO_OSD_OSDWINMD0 &= ~0x04;
lcd_clear_display();
} else if(mode==LCD_MODE_PAL256) {
#if LCD_NATIVE_WIDTH%32!=0
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 32+1;
#else
IO_OSD_OSDWIN0OFST = LCD_NATIVE_WIDTH / 32;
#endif
IO_OSD_VIDWINMD &= ~(0x01);
IO_OSD_OSDWINMD0 &= ~(1<<13);
IO_OSD_OSDWINMD0 |= 0x01;
}
}
#endif
#if defined(PORTRAIT_USE_DMA)
static void dma_start_transfer16( char *src, char *dst, int stride,
int width, int height, int pix_width)
__attribute__ ((section(".icode")));
static void dma_start_transfer16( char *src, char *dst, int stride,
int width, int height, int pix_width) {
int c_width = width;
/* Addresses are relative to start of SDRAM */
src-=CONFIG_SDRAM_START;
dst-=CONFIG_SDRAM_START;
/* Enable Clocks */
IO_CLK_MOD1 |= 1<<8;
COP_CP_CLKC |= 0x0001;
/* ... */
COP_BUF_MUX1 = 0x0005;
/* Give the DMA access to the buffer */
COP_BUF_MUX0 = 0x0663;
/* Setup buffer offsets and transfer width/height */
COP_BUF_LOFST = 32;
COP_DMA_XNUM = 32;
COP_DMA_YNUM = 32;
/* ... */
COP_IMG_MODE = 0x0000;
/* Set the start address of buffer */
COP_BUF_ADDR = 0x0000;
/* Setup SDRAM stride */
COP_SDEM_LOFST = stride;
do {
do {
int addr;
addr = (int)src;
addr >>= 1; /* Addresses are in 16-bit words */
/* Setup the registers to initiate the read from SDRAM */
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start */
COP_DMA_CTRL = 0x0001;
COP_DMA_CTRL |= 0x0003;
/* Wait for read to finish */
while(COP_DMA_CTRL & 0x02) {};
addr = (int)dst;
addr >>= 1;
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
/* Set direction and start transfer */
COP_DMA_CTRL = 0x0000;
COP_DMA_CTRL = 0x0002;
/* Wait for the transfer to complete */
while(COP_DMA_CTRL & 0x02) {};
/* Update source and destination pointers/counters */
src += 32*pix_width;
dst += 32*pix_width;
c_width -= 32;
} while (c_width>0);
/* Reset the width, update pointers/counters */
c_width = width;
src -= width*pix_width;
dst -= width*pix_width;
src += (LCD_WIDTH*32*pix_width);
dst += (LCD_WIDTH*32*pix_width);
height -= 32;
} while(height>0);
}
#endif
#if defined(LANDSCAPE_USE_DMA)
static void dma_start_transfer16_r( char *src, int sx, int sy, int sstride,
char *dst, int dx, int dy, int dstride,
int width, int height, int pix_width) {
if(sx & 0x0F) {
int sx2 = sx + width;
if(sx2 & 0x0F) {
sx2 = (sx2 + 0x0F) & ~0x0F;
}
sx = sx & ~0x0F;
width = sx2 - sx;
}
if(sy & 0x0F) {
int sy2 = sy + height;
if(sy2 & 0x0F) {
sy2 = (sy2 + 0x0F) & ~0x0F;
}
sy = sy & ~0x0F;
height = sy2 - sy;
}
if(dx & 0x0F) {
dx = dx & ~0x0F;
}
if(dy & 0x0F) {
dy = dy & ~0x0F;
}
src=src+(sy*sstride+sx)*pix_width;
dst=dst + ((LCD_NATIVE_WIDTH*(LCD_NATIVE_HEIGHT-1))
- LCD_NATIVE_WIDTH*(dx+32) + dy)*pix_width;
int c_width = width;
IO_CLK_MOD1 |= 1<<8;
COP_CP_CLKC |= 0x0001;
COP_BUF_MUX1 = 0x0005;
/* Give the DMA access to the buffer */
COP_BUF_MUX0 = 0x0663;
/* Set the buffer offsets and widths */
COP_BUF_LOFST = 32;
COP_DMA_XNUM = 32;
COP_DMA_YNUM = 32;
COP_IMG_MODE = 0x0000;
do {
char *c_dst = dst;
do {
int addr;
COP_BUF_ADDR = 0x0000;
COP_SDEM_LOFST = sstride;
addr = (int)src - CONFIG_SDRAM_START;
addr >>= 1;
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
COP_DMA_CTRL = 0x0001;
COP_DMA_CTRL |= 0x0003;
while(COP_DMA_CTRL & 0x02) {};
/* The ARM can access the buffer after this is set */
COP_BUF_MUX0 = 0x0660;
int run=1023;
#define IMG_BUF (*(volatile unsigned short *)(0x80000))
#define IMG_BUF2 (*(volatile unsigned short *)(0x80000 + 2*32*32 + 32*31*2 ))
do {
*(&IMG_BUF2-((run&0x1F)<<5)+(run>>5)) = *(&IMG_BUF+run);
} while(run--);
COP_BUF_MUX0 = 0x0663;
COP_BUF_ADDR = (32*32);
COP_SDEM_LOFST = LCD_NATIVE_WIDTH;
addr = (int)c_dst - CONFIG_SDRAM_START;
addr >>= 1;
COP_SDEM_ADDRH = addr >> 16;
COP_SDEM_ADDRL = addr & 0xFFFF;
COP_DMA_CTRL = 0x0000;
COP_DMA_CTRL = 0x0002;
while(COP_DMA_CTRL & 0x02) {};
src += 32*pix_width;
c_dst -= 32*pix_width*LCD_NATIVE_WIDTH;
c_width -= 32;
} while (c_width>0);
c_width = width;
src += (LCD_WIDTH*31*pix_width);
dst += (32*pix_width);
height -= 32;
} while(height>0);
}
#endif
/* Update a fraction of the display. */
void lcd_update_rect(int x, int y, int width, int height)
__attribute__ ((section(".icode")));
void lcd_update_rect(int x, int y, int width, int height)
{
if (!lcd_on)
return;
if ( (width | height) < 0)
return; /* nothing left to do */
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
width += x, x = 0; /* Clip left */
if (y + height > LCD_HEIGHT)
height = LCD_HEIGHT - y; /* Clip bottom */
if (y < 0)
height += y, y = 0; /* Clip top */
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#if defined(PORTRAIT_USE_DMA)
/* Makes sure the update is a ratio of 32x32 */
if(x & 0x1F) {
int x2 = x + width;
if(x2 & 0x1F) {
x2 = (x2 + 0x1F) & ~0x1F;
}
x = x & ~0x1F;
width = x2 - x;
}
if(y & 0x1F) {
int y2 = y + height;
if(y2 & 0x1F) {
y2 += 0x1F;
y2 &= ~0x1F;
}
y = y & ~0x1F;
height = y2 - y;
}
fb_data *dst;
dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
dma_start_transfer16( (char *)&lcd_framebuffer[y][x],(char *)dst,
LCD_WIDTH, width, height, 2);
#else
register fb_data *dst;
dst = (fb_data *)FRAME + LCD_WIDTH*y + x;
/* Copy part of the Rockbox framebuffer to the second framebuffer */
if (width < LCD_WIDTH)
{
/* Not full width - do line-by-line */
lcd_copy_buffer_rect(dst, &lcd_framebuffer[y][x], width, height);
}
else
{
/* Full width - copy as one line */
lcd_copy_buffer_rect(dst, &lcd_framebuffer[y][x], LCD_WIDTH*height, 1);
}
#endif
#else
#if defined(LANDSCAPE_USE_DMA)
dma_start_transfer16_r( (char *)lcd_framebuffer, 0, 0, LCD_WIDTH,
(char *)FRAME, 0, 0, LCD_NATIVE_WIDTH,
LCD_WIDTH, LCD_HEIGHT, 2);
#else
register fb_data *dst, *src;
src = &lcd_framebuffer[y][x];
dst=FRAME + (LCD_NATIVE_WIDTH*(LCD_NATIVE_HEIGHT-1))
- LCD_NATIVE_WIDTH*x + y ;
height--;
do {
register int c_width=width-1;
register fb_data *c_dst=dst;
do {
*c_dst=*src++;
c_dst-=LCD_NATIVE_WIDTH;
} while(c_width--);
src+=LCD_WIDTH-width;
dst++;
} while(height--);
#endif
#endif
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_update(void) __attribute__ ((section(".icode")));
void lcd_update(void)
{
if (!lcd_on)
return;
lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
}
#if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
void lcd_blit_pal256(unsigned char *src, int src_x, int src_y, int x, int y,
int width, int height) __attribute__ ((section(".icode")));
void lcd_blit_pal256(unsigned char *src, int src_x, int src_y, int x, int y,
int width, int height)
{
#if CONFIG_ORIENTATION == SCREEN_PORTRAIT
#if defined(PORTRAIT_USE_DMA)
src = src+src_x+src_y*LCD_WIDTH;
char *dst=(char *)FRAME+x+y*(LCD_NATIVE_WIDTH+LCD_FUDGE);
dma_start_transfer16( (char *)src, (char *)dst, LCD_WIDTH>>1,
width, height, 1);
#else
char *dst=(char *)FRAME+x+y*(LCD_NATIVE_WIDTH+LCD_FUDGE);
src = src+src_x+src_y*LCD_WIDTH;
while(height--)
{
memcpy(dst, src, width);
dst = dst + ((LCD_WIDTH -x +LCD_FUDGE));
src = src + (LCD_WIDTH - x);
}
#endif
#else
char *dst=(char *)FRAME
+ (LCD_NATIVE_WIDTH+LCD_FUDGE)*(LCD_NATIVE_HEIGHT-1)
- (LCD_NATIVE_WIDTH+LCD_FUDGE)*x + y;
src=src+src_x+src_y*LCD_WIDTH;
while(height--)
{
register char *c_dst=dst;
register int c_width=width;
while (c_width--)
{
*c_dst = *src++;
c_dst -= (LCD_NATIVE_WIDTH+LCD_FUDGE);
}
dst++;
src+=LCD_WIDTH-width;
}
#endif
}
void lcd_pal256_update_pal(fb_data *palette)
{
unsigned char i;
for(i=0; i< 255; i++)
{
int y, cb, cr;
unsigned char r=RGB_UNPACK_RED_LCD(palette[i])<<3;
unsigned char g=RGB_UNPACK_GREEN_LCD(palette[i])<<2;
unsigned char b=RGB_UNPACK_BLUE_LCD(palette[i])<<3;
y = ((77 * r + 150 * g + 29 * b) >> 8);
cb = ((-43 * r - 85 * g + 128 * b) >> 8) + 128;
cr = ((128 * r - 107 * g - 21 * b) >> 8) + 128;
while(IO_OSD_MISCCTL&0x08)
{};
/* Write in y and cb */
IO_OSD_CLUTRAMYCB= ((unsigned char)y << 8) | (unsigned char)cb;
/* Write in the index and cr */
IO_OSD_CLUTRAMCR=((unsigned char)cr << 8) | i;
}
}
#endif
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) __attribute__ ((section(".icode")));
/* Performance function to blit a YUV bitmap directly to the LCD */
/* Show it rotated so the LCD_WIDTH is now the height */
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)
{
register unsigned char const * yuv_src[3];
if (!lcd_on)
return;
/* y has to be on a 16 pixel boundary */
y &= ~0xF;
if( ((y | x | height | width ) < 0)
|| y>LCD_NATIVE_HEIGHT || x>LCD_NATIVE_WIDTH )
return;
if(y+height>LCD_NATIVE_WIDTH)
{
height=LCD_NATIVE_WIDTH-y;
}
if(x+width>LCD_NATIVE_HEIGHT)
{
width=LCD_NATIVE_HEIGHT-x;
}
/* Sorry, but width and height must be >= 2 or else */
width &= ~1;
height>>=1;
fb_data * dst = FRAME2
+ ((LCD_NATIVE_WIDTH+LCD_FUDGE)*(LCD_NATIVE_HEIGHT-1))
- (LCD_NATIVE_WIDTH+LCD_FUDGE)*x + y ;
/* Scope z */
{
off_t z;
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]);
}
register int cbcr_remain=(stride>>1)-(width>>1);
register int y_remain=(stride<<1)-width;
do
{
register fb_data *c_dst=dst;
register int c_width=width;
do
{
/* This needs to be done in a block of 4 pixels */
*c_dst=*yuv_src[0]<<8 | *yuv_src[1];
*(c_dst+1)=*(yuv_src[0]+stride)<<8 | *yuv_src[2];
c_dst-=(LCD_NATIVE_WIDTH+LCD_FUDGE);
yuv_src[0]++;
*c_dst=*yuv_src[0]<<8 | *yuv_src[1];
*(c_dst+1)=*(yuv_src[0]+stride)<<8 | *yuv_src[2];
c_dst-=(LCD_NATIVE_WIDTH+LCD_FUDGE);
yuv_src[0]++;
yuv_src[1]++;
yuv_src[2]++;
c_width -= 2;
}
while (c_width > 0);
yuv_src[0] += y_remain; /* Skip down two luma lines-width */
yuv_src[1] += cbcr_remain; /* Skip down one chroma line-width/2 */
yuv_src[2] += cbcr_remain;
dst+=2;
}
while (--height > 0);
}
void lcd_set_contrast(int val) {
(void) val;
// TODO:
}
void lcd_set_invert_display(bool yesno) {
(void) yesno;
// TODO:
}
void lcd_set_flip(bool yesno) {
(void) yesno;
// TODO:
}
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