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sansa clipzip: annotate lcd registers

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30411 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2011-09-02 20:09:51 +00:00
parent 5b7a150807
commit 9372063e19
1 changed files with 47 additions and 49 deletions
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96
firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
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@ -7,8 +7,7 @@
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 François Dinel
* Copyright (C) 2008-2009 Rafaël Carré
* Copyright (C) 2011 Bertrik Sikken
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -110,46 +109,45 @@ static void lcd_delay(int us)
udelay(us);
}
/* initialises lcd type 0 */
/* Initialises lcd type 0
* This appears to be a Visionox M00230 OLED display controlled by a SEPS114A.
*/
static void lcd_init_type0(void)
{
lcd_write(0x01, 0x00);
lcd_write(0x14, 0x01);
lcd_write(0x01, 0x00); /* SOFT_RESET */
lcd_write(0x14, 0x01); /* STANDBY_ON_OFF */
lcd_delay(5);
lcd_write(0x14, 0x00);
lcd_write(0x14, 0x00); /* STANDBY_ON_OFF */
lcd_delay(5);
lcd_write(0x0F, 0x41);
lcd_write(0xEA, 0x0A);
lcd_write(0xEB, 0x42);
lcd_write(0x18, 0x08);
lcd_write(0x1A, 0x0B);
lcd_write(0x48, 0x03);
/* lcd width/height */
lcd_write(0x30, 0x00);
lcd_write(0x31, 0x5F);
lcd_write(0x32, 0x00);
lcd_write(0x33, 0x5F);
lcd_write(0xE0, 0x10);
lcd_write(0xE1, 0x00);
lcd_write(0xE5, 0x00);
lcd_write(0x0D, 0x00);
lcd_write(0x1D, 0x01);
lcd_write(0x09, 0x00);
lcd_write(0x13, 0x00);
lcd_write(0x16, 0x05);
lcd_write(0x3A, 0x03);
lcd_write(0x3B, 0x03);
lcd_write(0x3C, 0x03);
lcd_write(0x3D, 0x45);
lcd_write(0x3E, 0x45);
lcd_write(0x3F, 0x45);
lcd_write(0x40, 0x62);
lcd_write(0x41, 0x3D);
lcd_write(0x42, 0x46);
lcd_write(0x0F, 0x41); /* ANALOG_CONTROL */
lcd_write(0xEA, 0x0A); /* ? */
lcd_write(0xEB, 0x42); /* ? */
lcd_write(0x18, 0x08); /* DISCHARGE_TIME */
lcd_write(0x1A, 0x0B); /* OSC_ADJUST */
lcd_write(0x48, 0x03); /* ROW_OVERLAP */
lcd_write(0x30, 0x00); /* DISPLAY_X1 */
lcd_write(0x31, 0x5F); /* DISPLAY_X2 */
lcd_write(0x32, 0x00); /* DISPLAY_Y1 */
lcd_write(0x33, 0x5F); /* DISPLAY_Y2 */
lcd_write(0xE0, 0x10); /* RGB_IF */
lcd_write(0xE1, 0x00); /* RGB_POL */
lcd_write(0xE5, 0x00); /* DISPLAY_MODE_CONTROL */
lcd_write(0x0D, 0x00); /* CPU_IF */
lcd_write(0x1D, 0x01); /* MEMORY_WRITE_READ */
lcd_write(0x09, 0x00); /* ROW_SCAN_DIRECTION */
lcd_write(0x13, 0x00); /* ROW_SCAN_MODE */
lcd_write(0x16, 0x05); /* PEAK_PULSE_DELAY */
lcd_write(0x3A, 0x03); /* PEAK_PULSE_WIDTH_R */
lcd_write(0x3B, 0x03); /* PEAK_PULSE_WIDTH_G */
lcd_write(0x3C, 0x03); /* PEAK_PULSE_WIDTH_B */
lcd_write(0x3D, 0x45); /* PRECHARGE_CURRENT_R */
lcd_write(0x3E, 0x45); /* PRECHARGE_CURRENT_G */
lcd_write(0x3F, 0x45); /* PRECHARGE_CURRENT_B */
lcd_write(0x40, 0x62); /* COLUMN_CURRENT_R */
lcd_write(0x41, 0x3D); /* COLUMN_CURRENT_G */
lcd_write(0x42, 0x46); /* COLUMN_CURRENT_B */
}
/* writes a table entry (for type 1 LCDs) */
@ -277,13 +275,13 @@ void lcd_enable(bool on)
if (lcd_type == 0) {
if (on) {
lcd_write(0x14, 0x00);
lcd_write(0x02, 0x01);
lcd_write(0xD2, 0x04);
lcd_write(0xD0, 0x80);
lcd_write(0x14, 0x00); /* STANDBY_ON_OFF */
lcd_write(0x02, 0x01); /* DISP_ON_OFF */
lcd_write(0xD2, 0x04); /* SCREEN_SAVER_MODE */
lcd_write(0xD0, 0x80); /* SCREEN_SAVER_CONTROL */
sleep(HZ * 100/1000);
lcd_write(0xD0, 0x00);
lcd_write(0xD0, 0x00); /* SCREEN_SAVER_CONTROL */
}
else {
lcd_write(0xD2, 0x05);
@ -337,10 +335,10 @@ void lcd_init_device(void)
static void lcd_setup_rect(int x, int x_end, int y, int y_end)
{
if (lcd_type == 0) {
lcd_write(0x34, x);
lcd_write(0x35, x_end);
lcd_write(0x36, y);
lcd_write(0x37, y_end);
lcd_write(0x34, x); /* MEM_X1 */
lcd_write(0x35, x_end); /* MEM_X2 */
lcd_write(0x36, y); /* MEM_Y1 */
lcd_write(0x37, y_end); /* MEM_Y2 */
}
else {
lcd_write_cmd(0x0A);
@ -359,9 +357,9 @@ static void lcd_setup_rect(int x, int x_end, int y, int y_end)
void lcd_brightness(uint8_t red, uint8_t green, uint8_t blue)
{
if (lcd_type == 0) {
lcd_write(0x40, red);
lcd_write(0x41, green);
lcd_write(0x42, blue);
lcd_write(0x40, red); /* COLUMN_CURRENT_R */
lcd_write(0x41, green); /* COLUMN_CURRENT_G */
lcd_write(0x42, blue); /* COLUMN_CURRENT_B */
}
else {
lcd_write_cmd(0x0E);
@ -404,7 +402,7 @@ void lcd_update_rect(int x, int y, int width, int height)
lcd_setup_rect(x, x_end - 1, y, y_end - 1);
/* write to GRAM */
lcd_write_cmd((lcd_type == 0) ? 0x08 : 0x0C);
lcd_write_cmd((lcd_type == 0) ? 0x08 : 0x0C); /* DDRAM_DATA_ACCESS_PORT */
for (row = y; row < y_end; row++) {
ptr = &lcd_framebuffer[row][x];
for (col = x; col < x_end; col++) {