From 361cdac3652a6e4a7a30b31171def0c2e7d301f3 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Mon, 24 Sep 2007 00:18:09 +0000 Subject: The C200 LCD controller is a Samsung S6B33B2. Define appropriate register names, and implement display flip. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14838 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/sandisk/sansa-c200/lcd-c200.c | 83 ++++++++++++++++------- 1 file changed, 60 insertions(+), 23 deletions(-) (limited to 'firmware/target/arm/sandisk') diff --git a/firmware/target/arm/sandisk/sansa-c200/lcd-c200.c b/firmware/target/arm/sandisk/sansa-c200/lcd-c200.c index 511456bf47..6513b7cc72 100644 --- a/firmware/target/arm/sandisk/sansa-c200/lcd-c200.c +++ b/firmware/target/arm/sandisk/sansa-c200/lcd-c200.c @@ -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); -- cgit v1.2.3