devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Important step towards player flashing: LCD inits for both new LCD (confirmed working) and old LCD.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5397 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2004-11-11 01:11:06 +00:00
parent ca81ed218a
commit 2e290d6cec
1 changed files with 109 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

111
firmware/drivers/lcd-player.c
View file

@ -43,9 +43,13 @@
#define NEW_LCD_CRAM ((char)0x80) /* Characters */
#define NEW_LCD_PRAM ((char)0xC0) /* Patterns */
#define NEW_LCD_IRAM ((char)0x40) /* Icons */
#define NEW_LCD_FUNCTION_SET ((char)0x10)
#define NEW_LCD_POWER_SAVE_MODE_OSC_CONTROL_SET ((char)0x0c)
#define NEW_LCD_POWER_CONTROL_REGISTER_SET ((char)0x20)
#define NEW_LCD_DISPLAY_CONTROL_SET ((char)0x28)
#define LCD_CURSOR(x,y) ((char)(lcd_cram+((y)*16+(x))))
#define LCD_ICON(i) ((char)(lcd_iram+i))
#define LCD_CURSOR(x,y) ((char)(lcd_cram+((y)*16+(x))))
#define LCD_ICON(i) ((char)(lcd_iram+i))
#define SCROLLABLE_LINES 2
@ -488,6 +492,8 @@ void lcd_set_contrast(int val)
void lcd_init (void)
{
unsigned char data_vector[64];
new_lcd = has_new_lcd();
memset(extended_chars_mapped, NO_CHAR, sizeof(extended_chars_mapped));
memset(extended_pattern_content, NO_CHAR,sizeof(extended_pattern_content));
@ -500,6 +506,32 @@ void lcd_init (void)
lcd_pram = NEW_LCD_PRAM;
lcd_iram = NEW_LCD_IRAM;
pattern_size=7; /* Last pattern, 7 for new LCD */
/* LCD init for cold start */
PBCR2 &= 0xff00; /* Set PB0..PB3 to GPIO */
or_b(0x0f, &PBIORL); /* ... output */
or_b(0x0f, &PBDRL); /* ... and high */
lcd_write_command(NEW_LCD_FUNCTION_SET + 1); /* CGRAM selected */
lcd_write_command(NEW_LCD_CONTRAST_SET);
lcd_data_byte = 0x08;
lcd_write_data(&lcd_data_byte, 1);
lcd_write_command(NEW_LCD_POWER_SAVE_MODE_OSC_CONTROL_SET + 2);
/* oscillator on */
lcd_write_command(NEW_LCD_POWER_CONTROL_REGISTER_SET + 7);
/* opamp buffer + voltage booster on*/
memset(data_vector, 0x20, 64);
lcd_write_command(NEW_LCD_CRAM); /* Set DDRAM address */
lcd_write_data(data_vector, 64); /* all spaces */
memset(data_vector, 0, 64);
lcd_write_command(NEW_LCD_PRAM); /* Set CGRAM address */
lcd_write_data(data_vector, 64); /* zero out */
lcd_write_command(NEW_LCD_IRAM); /* Set ICONRAM address */
lcd_write_data(data_vector, 16); /* zero out */
lcd_write_command(NEW_LCD_DISPLAY_CONTROL_SET + 1); /* display on */
}
else {
lcd_ascii = old_lcd_rocklatin1_to_xlcd;
@ -508,6 +540,81 @@ void lcd_init (void)
lcd_pram = OLD_LCD_PRAM;
lcd_iram = OLD_LCD_IRAM;
pattern_size=3; /* Last pattern, 3 for old LCD */
#if 1
/* LCD init for cold start */
PBCR2 &= 0xff00; /* Set PB0..PB3 to GPIO */
or_b(0x0f, &PBIORL); /* ... output */
or_b(0x0f, &PBDRL); /* ... and high */
lcd_write_command(0x61);
lcd_write_command(0x42);
lcd_write_command(0x57);
memset(data_vector, 0x24, 13);
lcd_write_command(OLD_LCD_CRAM); /* Set DDRAM address */
lcd_write_data(data_vector, 13); /* all spaces */
lcd_write_command(OLD_LCD_CRAM + 0x10);
lcd_write_data(data_vector, 13);
lcd_write_command(OLD_LCD_CRAM + 0x20);
lcd_write_data(data_vector, 13);
memset(data_vector, 0, 32);
lcd_write_command(OLD_LCD_PRAM); /* Set CGRAM address */
lcd_write_data(data_vector, 32); /* zero out */
lcd_write_command(OLD_LCD_IRAM); /* Set ICONRAM address */
lcd_write_data(data_vector, 13); /* zero out */
lcd_write_command(OLD_LCD_IRAM + 0x10);
lcd_write_data(data_vector, 13);
lcd_write_command(0x31);
#else
/* archos look-alike code, left here for reference. As soon as the
* rockbox version is confirmed working, this will go away */
{
int i;
PBCR2 &= 0xc000;
PBIOR |= 0x000f;
PBDR |= 0x0002;
PBDR |= 0x0001;
PBDR |= 0x0004;
PBDR |= 0x0008;
for (i=0; i<200; i++) asm volatile ("nop"); /* wait 100 us */
PBDR &= 0xfffd; /* CS low (assert) */
for (i=0; i<100; i++) asm volatile ("nop"); /* wait 50 us */
lcd_write_command(0x61);
lcd_write_command(0x42);
lcd_write_command(0x57);
memset(data_vector, 0x24, 13);
lcd_write_command(0xb0); /* Set DDRAM address */
lcd_write_data(data_vector, 13); /* all spaces */
lcd_write_command(0xc0);
lcd_write_data(data_vector, 13);
lcd_write_command(0xd0);
lcd_write_data(data_vector, 13);
memset(data_vector, 0, 32);
lcd_write_command(0x80); /* Set CGRAM address */
lcd_write_data(data_vector, 32); /* zero out */
lcd_write_command(0xe0); /* Set ICONRAM address */
lcd_write_data(data_vector, 13); /* zero out */
lcd_write_command(0xf0);
lcd_write_data(data_vector, 13);
for (i=0; i<300000; i++) asm volatile ("nop"); /* wait 150 ms */
lcd_write_command(0x31);
lcd_write_command(0xa8); /* Set contrast control */
lcd_data_byte = 0;
lcd_write_data(&lcd_data_byte, 1); /* 0 */
}
#endif
}
lcd_set_contrast(lcd_default_contrast());