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The C200 LCD controller is a Samsung S6B33B2. Define appropriate register names, and implement display flip.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14838 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2007-09-24 00:18:09 +00:00
parent edc6d63309
commit 361cdac365
2 changed files with 61 additions and 24 deletions
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2
firmware/export/config-c200.h
View file

@ -52,7 +52,7 @@
/* TODO: #define HAVE_LCD_SLEEP */
/* define this if you can flip your LCD */
/* TODO: #define HAVE_LCD_FLIP */
#define HAVE_LCD_FLIP
/* define this if you can invert the colours on your LCD */
/* TODO: #define HAVE_LCD_INVERT */

83
firmware/target/arm/sandisk/sansa-c200/lcd-c200.c
View file

@ -28,6 +28,43 @@
#define LCD_BUSY 0x8000
/* LCD command set for Samsung S6B33B2 */
#define R_OSCILLATION_MODE 0x02
#define R_DRIVER_OUTPUT_MODE 0x10
#define R_DCDC_SET 0x20
#define R_BIAS_SET 0x22
#define R_DCDC_CLOCK_DIV 0x24
#define R_DCDC_AMP_ONOFF 0x26
#define R_TEMP_COMPENSATION 0x28
#define R_CONTRAST_CONTROL1 0x2a
#define R_CONTRAST_CONTROL2 0x2b
#define R_STANDBY_OFF 0x2c
#define R_STANDBY_ON 0x2d
#define R_DDRAM_BURST_OFF 0x2e
#define R_DDRAM_BURST_ON 0x2f
#define R_ADDRESSING_MODE 0x30
#define R_ROW_VECTOR_MODE 0x32
#define R_N_LINE_INVERSION 0x34
#define R_FRAME_FREQ_CONTROL 0x36
#define R_RED_PALETTE 0x38
#define R_GREEN_PALETTE 0x3a
#define R_BLUE_PALETTE 0x3c
#define R_ENTRY_MODE 0x40
#define R_X_ADDR_AREA 0x42
#define R_Y_ADDR_AREA 0x43
#define R_RAM_SKIP_AREA 0x45
#define R_DISPLAY_OFF 0x50
#define R_DISPLAY_ON 0x51
#define R_SPEC_DISPLAY_PATTERN 0x53
#define R_PARTIAL_DISPLAY_MODE 0x55
#define R_PARTIAL_START_LINE 0x56
#define R_PARTIAL_END_LINE 0x57
#define R_AREA_SCROLL_MODE 0x59
#define R_SCROLL_START_LINE 0x5a
#define R_DATA_FORMAT_SELECT 0x60
/* wait for LCD */
static inline void lcd_wait_write(void)
{
@ -70,69 +107,69 @@ void lcd_init_device(void)
LCD_BASE = 0x4687;
udelay(10000);
lcd_send_command(0x2c);
lcd_send_command(R_STANDBY_OFF);
udelay(20000);
lcd_send_command(0x02);
lcd_send_command(R_OSCILLATION_MODE);
lcd_send_command(0x01);
udelay(20000);
lcd_send_command(0x26);
lcd_send_command(R_DCDC_AMP_ONOFF);
lcd_send_command(0x01);
udelay(20000);
lcd_send_command(0x26);
lcd_send_command(R_DCDC_AMP_ONOFF);
lcd_send_command(0x09);
udelay(20000);
lcd_send_command(0x26);
lcd_send_command(R_DCDC_AMP_ONOFF);
lcd_send_command(0x0b);
udelay(20000);
lcd_send_command(0x26);
lcd_send_command(R_DCDC_AMP_ONOFF);
lcd_send_command(0x0f);
udelay(20000);
lcd_send_command(0x10);
lcd_send_command(R_DRIVER_OUTPUT_MODE);
lcd_send_command(0x07);
lcd_send_command(0x20);
lcd_send_command(R_DCDC_SET);
lcd_send_command(0x03);
lcd_send_command(0x24);
lcd_send_command(R_DCDC_CLOCK_DIV);
lcd_send_command(0x03);
lcd_send_command(0x28);
lcd_send_command(R_TEMP_COMPENSATION);
lcd_send_command(0x01);
lcd_send_command(0x2a);
lcd_send_command(R_CONTRAST_CONTROL1);
lcd_send_command(0x55);
lcd_send_command(0x30);
lcd_send_command(R_ADDRESSING_MODE);
lcd_send_command(0x10);
lcd_send_command(0x32);
lcd_send_command(R_ROW_VECTOR_MODE);
lcd_send_command(0x0e);
lcd_send_command(0x34);
lcd_send_command(R_N_LINE_INVERSION);
lcd_send_command(0x0d);
lcd_send_command(0x36);
lcd_send_command(R_FRAME_FREQ_CONTROL);
lcd_send_command(0);
lcd_send_command(0x40);
lcd_send_command(R_ENTRY_MODE);
lcd_send_command(0x82);
lcd_send_command(0x43); /* vertical dimensions */
lcd_send_command(R_Y_ADDR_AREA); /* vertical dimensions */
lcd_send_command(0x1a); /* y1 + 0x1a */
lcd_send_command(LCD_HEIGHT - 1 + 0x1a); /* y2 + 0x1a */
lcd_send_command(0x42); /* horizontal dimensions */
lcd_send_command(R_X_ADDR_AREA); /* horizontal dimensions */
lcd_send_command(0); /* x1 */
lcd_send_command(LCD_WIDTH - 1); /* x2 */
udelay(100000);
lcd_send_command(0x51);
lcd_send_command(R_DISPLAY_ON);
}
/*** hardware configuration ***/
@ -156,8 +193,8 @@ void lcd_set_invert_display(bool yesno)
/* turn the display upside down (call lcd_update() afterwards) */
void lcd_set_flip(bool yesno)
{
/* TODO: Implement lcd_set_flip() */
(void)yesno;
lcd_send_command(R_DRIVER_OUTPUT_MODE);
lcd_send_command(yesno ? 0x02 : 0x07);
}
/*** update functions ***/
@ -212,14 +249,14 @@ void lcd_update_rect(int x0, int y0, int width, int height)
if(y1 >= LCD_HEIGHT)
y1 = LCD_HEIGHT - 1;
lcd_send_command(0x43);
lcd_send_command(R_Y_ADDR_AREA);
lcd_send_command(y0 + 0x1a);
lcd_send_command(y1 + 0x1a);
if(x1 >= LCD_WIDTH)
x1 = LCD_WIDTH - 1;
lcd_send_command(0x42);
lcd_send_command(R_X_ADDR_AREA);
lcd_send_command(x0);
lcd_send_command(x1);