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Updated H100 remote LCD driver by Rick

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6288 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2005-04-15 06:39:56 +00:00
parent 215e492a12
commit 769af0e3d7
1 changed files with 68 additions and 56 deletions
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124
firmware/drivers/lcd-h100-remote.c
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@ -23,18 +23,28 @@
#if CONFIG_CPU == MCF5249
#define CS_LO GPIO_OUT &= ~0x00000004
#define CS_HI GPIO_OUT |= 0x00000004
#define CS_LO GPIO1_OUT &= ~0x00000004
#define CS_HI GPIO1_OUT |= 0x00000004
#define CLK_LO GPIO_OUT &= ~0x10000000
#define CLK_HI GPIO_OUT |= 0x10000000
#define DATA_LO GPIO_OUT &= ~0x00040000
#define DATA_HI GPIO_OUT |= 0x00040000
#define DATA_LO GPIO1_OUT &= ~0x00040000
#define DATA_HI GPIO1_OUT |= 0x00040000
#define RS_LO GPIO_OUT &= ~0x00010000
#define RS_HI GPIO_OUT |= 0x00010000
/* delay loop */
#define DELAY do { int _x; for(_x=0;_x<3;_x++);} while (0)
void lcd_remote_backlight_on(void)
{
GPIO_OUT &= ~0x00000800;
}
void lcd_remote_backlight_off(void)
{
GPIO_OUT |= 0x00000800;
}
void lcd_remote_write_command(int cmd)
{
int i;
@ -89,7 +99,7 @@ void lcd_remote_write_data(const unsigned char* p_bytes, int count)
CS_HI;
}
void lcd_remote_write_command_ex(int cmd, int data1, int data2)
void lcd_remote_write_command_ex(int cmd, int data)
{
int i;
@ -110,85 +120,87 @@ void lcd_remote_write_command_ex(int cmd, int data1, int data2)
CLK_LO;
}
RS_HI;
for (i = 0; i < 8; i++)
{
if (data1 & 0x80)
if (data & 0x80)
DATA_HI;
else
DATA_LO;
CLK_HI;
data1 <<= 1;
data <<= 1;
DELAY;
CLK_LO;
}
if (data2 != -1)
{
for (i = 0; i < 8; i++)
{
if (data2 & 0x80)
DATA_HI;
else
DATA_LO;
CLK_HI;
data2 <<= 1;
DELAY;
CLK_LO;
}
}
CS_HI;
}
#define LCD_REMOTE_ADC_NORMAL 0xa0
#define LCD_REMOTE_ADC_REVERSE 0xa1
#define LCD_REMOTE_CNTL_ADC_NORMAL 0xa0
#define LCD_REMOTE_CNTL_ADC_REVERSE 0xa1
#define LCD_REMOTE_CNTL_SHL_NORMAL 0xc0
#define LCD_REMOTE_CNTL_SHL_REVERSE 0xc8
#define LCD_REMOTE_CNTL_DISPLAY_ON_OFF 0xae
#define LCD_REMOTE_CNTL_ENTIRE_ON_OFF 0xa4
#define LCD_REMOTE_CNTL_REVERSE_ON_OFF 0xa6
#define LCD_REMOTE_CTNL_NOP 0xe3
#define LCD_REMOTE_CNTL_POWER_CONTROL 0x2b
#define LCD_REMOTE_CNTL_SELECT_REGULATOR 0x20
#define LCD_REMOTE_CNTL_SELECT_BIAS 0xa2
#define LCD_REMOTE_CNTL_SELECT_VOLTAGE 0x81
#define LCD_REMOTE_SHL_NORMAL 0xc0
#define LCD_REMOTE_SHL_REVERSE 0xc8
void lcd_remote_powersave(bool on)
{
lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | (on ? 0 : 1));
lcd_remote_write_command(LCD_REMOTE_CNTL_ENTIRE_ON_OFF | (on ? 1 : 0));
}
#define LCD_REMOTE_DISPLAY_OFF 0xae
#define LCD_REMOTE_DISPLAY_ON 0xaf
void lcd_remote_set_contrast(int val)
{
lcd_remote_write_command_ex(LCD_REMOTE_CNTL_SELECT_VOLTAGE, val);
}
#define LCD_REMOTE_REVERSE_OFF 0xa6
#define LCD_REMOTE_REVERSE_ON 0xa7
#define LCD_REMOTE_DISPLAY_NORMAL 0xa4
#define LCD_REMOTE_DISPLAY_ENTIRE 0xa5
#define LCD_REMOTE_NO_OPERATION 0xe3
#define LCD_REMOTE_POWER_CONTROL 0x2b
void lcd_remote_set_invert_display(bool yesno)
{
lcd_remote_write_command(LCD_REMOTE_CNTL_REVERSE_ON_OFF | yesno);
}
void lcd_remote_init(void)
{
GPIO_FUNCTION |= 0x10010000; /* GPIO16: RS
GPIO_FUNCTION |= 0x10010800; /* GPIO11: Backlight
GPIO16: RS
GPIO28: CLK */
GPIO1_FUNCTION |= 0x00040004; /* GPIO34: CS
GPIO50: Data */
GPIO_ENABLE |= 0x10010000;
GPIO_ENABLE |= 0x10010800;
GPIO1_ENABLE |= 0x00040004;
CLK_LO;
CS_HI;
lcd_remote_write_command(LCD_REMOTE_CNTL_ADC_NORMAL);
lcd_remote_write_command(LCD_REMOTE_CNTL_SHL_NORMAL);
lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_BIAS | 0x0);
lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x4);
sleep(1);
lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x6);
sleep(1);
lcd_remote_write_command(LCD_REMOTE_CNTL_POWER_CONTROL | 0x7);
lcd_remote_write_command(LCD_REMOTE_CNTL_SELECT_REGULATOR | 0x4); // Select regulator @ 5.0 (default);
lcd_remote_set_contrast(32);
sleep(1);
lcd_remote_write_command(0x40); // init line
lcd_remote_write_command(0xB0); // page address
lcd_remote_write_command(0x10); // column
lcd_remote_write_command(0x00); // column
lcd_remote_write_command(LCD_REMOTE_CNTL_DISPLAY_ON_OFF | 1);
}
/*
lcd_remote_write_command(LCD_REMOTE_ADC_NORMAL);
lcd_remote_write_command(LCD_REMOTE_SHL_NORMAL);
lcd_remote_write_command(0xA2); // Bias 0
lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x4); // Convertor
// 1ms
lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x2); // Regulator
// 1ms
lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x1); // Follower
// 1ms
*/
#endif