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LCD remote support for iAudio X5

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10352 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2006-07-28 12:41:13 +00:00
parent 38719f87cb
commit d17d08c268
4 changed files with 239 additions and 40 deletions
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6
firmware/target/coldfire/iaudio/x5/lcd-remote-target.h
View file

@ -19,12 +19,16 @@
#ifndef LCD_REMOTE_TARGET_H
#define LCD_REMOTE_TARGET_H
void lcd_remote_init_device(void);
void lcd_remote_write_command(int cmd);
void lcd_remote_write_command_ex(int cmd, int data);
void lcd_remote_write_data(const unsigned char* p_bytes, int count);
bool remote_detect(void);
void lcd_remote_powersave(bool on);
void lcd_remote_set_contrast(int val);
void remote_set_row_and_col(int row, int col);
void lcd_remote_on(void);
void lcd_remote_off(void);
extern bool remote_initialized;
#endif

130
firmware/target/coldfire/iaudio/x5/lcd-remote-x5.c
View file

@ -19,6 +19,7 @@
#include "config.h"
#include "system.h"
#include "kernel.h"
#include "lcd-remote.h"
/* The LCD in the iAudio M3/M5/X5 remote control is a Tomato LSI 0350 */
@ -39,6 +40,7 @@
#define LCD_SET_GRAY 0x88
#define LCD_SET_PWM_FRC 0x90
#define LCD_SET_POWER_SAVE 0xa8
#define LCD_REVERSE 0xa6
#define CS_LO and_l(~0x00000020, &GPIO1_OUT)
#define CS_HI or_l(0x00000020, &GPIO1_OUT)
@ -51,8 +53,12 @@
#define LCD_REMOTE_DEFAULT_CONTRAST 0x18;
/* cached settings values */
static bool cached_invert = false;
static bool cached_flip = false;
static int cached_contrast = LCD_REMOTE_DEFAULT_CONTRAST;
static bool remote_initialized = false;
bool remote_initialized = false;
static void remote_write(unsigned char byte, bool is_command)
{
@ -94,13 +100,6 @@ void lcd_remote_write_data(const unsigned char* p_bytes, int count)
remote_write(*p_bytes++, false);
}
void remote_set_row_and_col(int row, int col)
{
lcd_remote_write_command(LCD_SET_PAGE | (row & 0xf));
lcd_remote_write_command_ex(LCD_SET_COLUMN | ((col >> 4) & 0xf),
col & 0xf);
}
int lcd_remote_default_contrast(void)
{
return LCD_REMOTE_DEFAULT_CONTRAST;
@ -108,24 +107,27 @@ int lcd_remote_default_contrast(void)
void lcd_remote_powersave(bool on)
{
if (on)
lcd_remote_write_command(LCD_SET_POWER_SAVE | 1);
else
lcd_remote_write_command(LCD_SET_POWER_SAVE | 1);
if(remote_initialized) {
if (on)
lcd_remote_write_command(LCD_SET_POWER_SAVE | 1);
else
lcd_remote_write_command(LCD_SET_POWER_SAVE | 1);
}
}
void lcd_remote_set_contrast(int val)
{
cached_contrast = val;
lcd_remote_write_command_ex(LCD_SET_VOLUME, val);
if(remote_initialized)
lcd_remote_write_command_ex(LCD_SET_VOLUME, val);
}
bool remote_detect(void)
{
return (GPIO_READ & 0x01000000);
return (GPIO_READ & 0x01000000)?false:true;
}
void remote_init(void)
void lcd_remote_init_device(void)
{
or_l(0x0000e000, &GPIO_OUT);
or_l(0x0000e000, &GPIO_ENABLE);
@ -135,17 +137,18 @@ void remote_init(void)
or_l(0x00000020, &GPIO1_ENABLE);
or_l(0x00000020, &GPIO1_FUNCTION);
and_l(~0x01000000, &GPIO_OUT);
and_l(~0x01000000, &GPIO_ENABLE);
or_l(0x01000000, &GPIO_FUNCTION);
}
void lcd_remote_on(void)
{
sleep(10);
lcd_remote_write_command(LCD_SET_DUTY_RATIO);
lcd_remote_write_command(0x70); /* 1/128 */
lcd_remote_write_command(LCD_SELECT_ADC | 1); /* Reverse direction */
lcd_remote_write_command(LCD_SELECT_SHL | 8); /* Reverse direction */
lcd_remote_write_command(LCD_SET_COM0);
lcd_remote_write_command(0x00);
lcd_remote_write_command(LCD_OSC_ON);
lcd_remote_write_command(LCD_SELECT_DCDC | 2); /* DC/DC 5xboost */
@ -173,5 +176,90 @@ void remote_init(void)
remote_initialized = true;
lcd_remote_set_flip(cached_flip);
lcd_remote_set_contrast(cached_contrast);
lcd_remote_set_invert_display(cached_invert);
}
void lcd_remote_off(void)
{
remote_initialized = false;
CS_HI;
RS_HI;
}
/* Update the display.
This must be called after all other LCD functions that change the display. */
void lcd_remote_update(void) ICODE_ATTR;
void lcd_remote_update(void)
{
int y;
if(remote_initialized) {
for(y = 0;y < LCD_REMOTE_HEIGHT/8;y++) {
/* Copy display bitmap to hardware.
The COM48-COM63 lines are not connected so we have to skip
them. Further, the column address doesn't wrap, so we
have to update one page at a time. */
lcd_remote_write_command(LCD_SET_PAGE | (y>5?y+2:y));
lcd_remote_write_command_ex(LCD_SET_COLUMN | 0, 0);
lcd_remote_write_data((unsigned char *)lcd_remote_framebuffer[y],
LCD_REMOTE_WIDTH*2);
}
}
}
/* Update a fraction of the display. */
void lcd_remote_update_rect(int, int, int, int) ICODE_ATTR;
void lcd_remote_update_rect(int x, int y, int width, int height)
{
if(remote_initialized) {
int ymax;
/* The Y coordinates have to work on even 8 pixel rows */
ymax = (y + height-1) >> 3;
y >>= 3;
if(x + width > LCD_REMOTE_WIDTH)
width = LCD_REMOTE_WIDTH - x;
if (width <= 0)
return; /* nothing left to do, 0 is harmful to lcd_write_data() */
if(ymax >= LCD_REMOTE_HEIGHT)
ymax = LCD_REMOTE_HEIGHT-1;
/* Copy specified rectangle bitmap to hardware
COM48-COM63 are not connected, so we need to skip those */
for (; y <= ymax; y++)
{
lcd_remote_write_command(LCD_SET_PAGE |
((y > 5?y + 2:y) & 0xf));
lcd_remote_write_command_ex(LCD_SET_COLUMN | ((x >> 4) & 0xf),
x & 0xf);
lcd_remote_write_data (
(unsigned char *)&lcd_remote_framebuffer[y][x], width*2);
}
}
}
void lcd_remote_set_invert_display(bool yesno)
{
cached_invert = yesno;
if(remote_initialized)
lcd_remote_write_command(LCD_REVERSE | yesno);
}
void lcd_remote_set_flip(bool yesno)
{
cached_flip = yesno;
if(remote_initialized) {
if(yesno) {
lcd_remote_write_command(LCD_SELECT_ADC | 0);
lcd_remote_write_command(LCD_SELECT_SHL | 0);
lcd_remote_write_command_ex(LCD_SET_COM0, 16);
} else {
lcd_remote_write_command(LCD_SELECT_ADC | 1);
lcd_remote_write_command(LCD_SELECT_SHL | 8);
lcd_remote_write_command_ex(LCD_SET_COM0, 0);
}
}
}