sed1356_16bit.h

umon bootloader source code, support mips cpu.

// SED1356_REG_CRT_DISP_MODE
#define SED1356_CRT_DISP_BLANK			BIT7			// 1 = Blank CRT Display
#define SED1356_CRT_DISP_16BPP			0x05			// Bit Per Pixel Selection
#define SED1356_CRT_DISP_15BPP			0x04
#define SED1356_CRT_DISP_8BPP			0x03
#define SED1356_CRT_DISP_4BPP			0x02
#define SED1356_CRT_DISP_BPP_MASK		0x07

// SED1356_DISP_MODE        
#define SED1356_DISP_SWIV_NORM			(0x00 << 6)		// Used with SED1356_LCD_DISP_MODE Bit 4
#define SED1356_DISP_SWIV_90			(0x01 << 6)
#define SED1356_DISP_SWIV_180			(0x00 << 6)
#define SED1356_DISP_SWIV_270			(0x01 << 6)
#define SED1356_DISP_MODE_OFF			0x00			// All Displays Off
#define SED1356_DISP_MODE_LCD			0x01			// LCD Only
#define SED1356_DISP_MODE_CRT			0x02			// CRT Only
#define SED1356_DISP_MODE_LCD_CRT		0x03			// Simultaneous LCD and CRT
#define SED1356_DISP_MODE_TV			0x04			// TV Only, Flicker Filter Off
#define SED1356_DISP_MODE_TV_LCD		0x05			// Simultaneous LCD and TV, Flicker Filter Off
#define SED1356_DISP_MODE_TV_FLICK		0x06			// TV Only, Flicker Filter On
#define SED1356_DISP_MODE_TV_LCD_FLICK	0x07			// Simultaneous LCD and TV, Flicker Filter On

// SED1356_REG_PWR_CFG and SED1356_REG_PWR_STAT
#define SED1356_PWR_PCLK				BIT1			// SED1356_REG_PWR_STAT only
#define SED1356_PWR_MCLK				BIT0

// SED1356_REG_VER_NONDISP
#define SED1356_VER_NONDISP				BIT7			// vertical retrace status 1 = in retrace

// Display size defines
#define PIXELS_PER_ROW 		640
#define PIXELS_PER_COL 		480
#define BYTES_PER_PIXEL		2
#define COLS_PER_SCREEN		80
#define ROWS_PER_SCREEN		30

// 16-bit pixels are RGB 565 - LSB of RED and BLUE are tied low at the 
// LCD Interface, while the LSB of GREEN is loaded as 0
#define RED_SUBPIXEL(n)		((n & 0x1f) << 11)
#define GREEN_SUBPIXEL(n)	((n & 0x1f) << 5)
#define BLUE_SUBPIXEL(n)	((n & 0x1f) << 0)

// define a simple VGA style 16-color pallette
#if 0
#define	LU_BLACK		(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x00))
#define	LU_BLUE			(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x0f))
#define	LU_GREEN		(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x0f) | BLUE_SUBPIXEL(0x00))
#define	LU_CYAN			(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x0f) | BLUE_SUBPIXEL(0x0f))
#define	LU_RED			(RED_SUBPIXEL(0x0f) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x00))
#define	LU_VIOLET		(RED_SUBPIXEL(0x0f) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x0f))
#define	LU_YELLOW		(RED_SUBPIXEL(0x0f) | GREEN_SUBPIXEL(0x0f) | BLUE_SUBPIXEL(0x00))
#define	LU_GREY			(RED_SUBPIXEL(0x0f) | GREEN_SUBPIXEL(0x0f) | BLUE_SUBPIXEL(0x0f))
#define	LU_WHITE		(RED_SUBPIXEL(0x17) | GREEN_SUBPIXEL(0x17) | BLUE_SUBPIXEL(0x17))
#define	LU_BRT_BLUE		(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x1f))
#define	LU_BRT_GREEN	(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x1f) | BLUE_SUBPIXEL(0x00))
#define	LU_BRT_CYAN		(RED_SUBPIXEL(0x00) | GREEN_SUBPIXEL(0x1f) | BLUE_SUBPIXEL(0x1f))
#define	LU_BRT_RED		(RED_SUBPIXEL(0x1f) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x00))
#define	LU_BRT_VIOLET	(RED_SUBPIXEL(0x1f) | GREEN_SUBPIXEL(0x00) | BLUE_SUBPIXEL(0x1f))
#define	LU_BRT_YELLOW	(RED_SUBPIXEL(0x1f) | GREEN_SUBPIXEL(0x1f) | BLUE_SUBPIXEL(0x00))
#define	LU_BRT_WHITE	(RED_SUBPIXEL(0x1f) | GREEN_SUBPIXEL(0x1f) | BLUE_SUBPIXEL(0x1f))
//    RED,  GREEN, BLUE		// Entry
	{ 0x00,  0x00, 0x00, },	// LU_BLACK		
	{ 0x00,  0x00, 0xA0, },	// LU_BLUE			
	{ 0x00,  0xA0, 0x00, },	// LU_GREEN		
	{ 0x00,  0xA0, 0xA0, },	// LU_CYAN			
	{ 0xA0,  0x00, 0x00, },	// LU_RED			
	{ 0xA0,  0x00, 0xA0, },	// LU_VIOLET		
	{ 0xA0,  0xA0, 0x00, },	// LU_YELLOW		
	{ 0xA0,  0xA0, 0xA0, },	// LU_WHITE		
	{ 0x50,  0x50, 0x50, },	// LU_GREY			
	{ 0x50,  0x50, 0xF0, },	// LU_BRT_BLUE		
	{ 0x50,  0xF0, 0x50, },	// LU_BRT_GREEN	
	{ 0x50,  0xF0, 0xF0, },	// LU_BRT_CYAN		
	{ 0xF0,  0x50, 0x50, },	// LU_BRT_RED		
	{ 0xF0,  0x50, 0xF0, },	// LU_BRT_VIOLET	
	{ 0xF0,  0xF0, 0x50, },	// LU_BRT_YELLOW	
	{ 0xF0,  0xF0, 0xF0, },	// LU_BRT_WHITE	
#endif

#define BLUE			(0x14 << 0)
#define GREEN			(0x14 << 6)
#define RED				(0x14 << 11)

#define HALF_BLUE		(0x0a << 0)
#define HALF_GREEN		(0x0a << 6)
#define HALF_RED		(0x0a << 11)


#define BRT_BLUE 		(0x1e << 0)
#define BRT_GREEN		(0x1e << 6)
#define BRT_RED			(0x1e << 11)

#define	LU_BLACK		0
#define	LU_BLUE			(BLUE)
#define	LU_GREEN		(GREEN)
#define	LU_CYAN			(GREEN | BLUE)
#define	LU_RED			(RED)
#define	LU_VIOLET		(RED | BLUE)
#define	LU_YELLOW		(RED | GREEN)
#define	LU_WHITE		(RED | GREEN | BLUE)
#define	LU_GREY			(HALF_RED | HALF_GREEN | HALF_BLUE)
#define	LU_BRT_BLUE		(HALF_RED | HALF_GREEN | BRT_BLUE)
#define	LU_BRT_GREEN	(HALF_RED | BRT_GREEN | HALF_BLUE)
#define	LU_BRT_CYAN		(HALF_RED | BRT_GREEN | BRT_BLUE)
#define	LU_BRT_RED		(BRT_RED | HALF_GREEN | HALF_BLUE)
#define	LU_BRT_VIOLET	(BRT_RED | HALF_GREEN | BRT_BLUE)
#define	LU_BRT_YELLOW	(BRT_RED | BRT_GREEN | HALF_BLUE)
#define	LU_BRT_WHITE	(BRT_RED | BRT_GREEN | BRT_BLUE)

static const ushort vga_lookup[] = {
LU_BLACK,				// 0
LU_BLUE,				// 1
LU_GREEN,				// 2
LU_CYAN,				// 3
LU_RED,					// 4
LU_VIOLET,				// 5
LU_YELLOW,				// 6
LU_WHITE,				// 7
LU_GREY,				// 8
LU_BRT_BLUE,			// 9
LU_BRT_GREEN,			// 10
LU_BRT_CYAN,			// 11
LU_BRT_RED,				// 12
LU_BRT_VIOLET,			// 13
LU_BRT_YELLOW,			// 14
LU_BRT_WHITE			// 15
};

// default foreground and background colors
#define SED_BG_DEF			1
#define SED_FG_DEF			14

// Vertical and Horizontal Pulse, Start and Non-Display values vary depending
// upon the mode.  The following section gives some insight into how the
// values are arrived at.
// ms = milliseconds, us = microseconds, ns = nanoseconds    
// Mhz = Megaherz, Khz = Kiloherz, Hz = Herz   
//
// ***************************************************************************************************   
// CRT Mode is 640x480 @ 72Hz VESA compatible timing.  PCLK = 31.5Mhz (31.75ns)
// ***************************************************************************************************   
//
//                               CRT MODE HORIZONTAL TIMING PARAMETERS   
//
//                                       |<-------Tha------->|   
//                                       |___________________|                     ______   
// Display Enable   _____________________|                   |____________________|      
//                                       |                   |   
// Horizontal Pulse __           ________|___________________|________          __________   
//                    |_________|        |                   |        |________|   
//                    |<- Thp ->|        |                   |        |   
//                    |         |<-Thbp->|                   |        |   
//                    |                                      |<-Thfp->|   
//                    |<----------------------Tht-------------------->|    
//
// Tha  - Active Display Time                      = 640 pixels   
// Thp  - Horizontal Pulse       = 1.27us/31.75ns  =  40 pixels   
// Thbp - Horizontal Front Porch = 1.016us/31.75ns =  32 pixels   
// Thfp - Horizontal Back Porch  = 3.8us/31.75ns   = 120 pixels   
// Tht  - Total Horizontal Time                    = 832 pixels x 32.75ns/pixel = 26.416us or 38.785Khz   
//
// Correlation between horizontal timing parameters and SED registers   
#define SED_HOR_PULSE_WIDTH_CRT 0x07 // Horizontal Pulse Width Register       		= (Thp/8) - 1
#define SED_HOR_PULSE_START_CRT	0x02 // Horizontal Pulse Start Position Register    = ((Thfp + 2)/8) - 1
#define SED_HOR_NONDISP_CRT  	0x17 // Horizontal Non-Display Period Register 		= ((Thp + Thfp + Thbp)/8) - 1
//
//                                CRT MODE VERTICAL TIMING PARAMTERS   
//
//                                       |<-------Tva------->|   
//                                       |___________________|                     ______   
// Display Enable   _____________________|                   |_____________________|      
//                                       |                   |   
// Vertical Pulse   __           ________|___________________|________          __________   
//                    |_________|        |                   |        |________|   
//                    |<- Tvp ->|        |                   |        |   
//                    |         |<-Tvbp->|                   |        |   
//                    |                                      |<-Tvfp->|   
//                    |<----------------------Tvt-------------------->|    
//
// Tva  - Active Display Time   = 480 lines   
// Tvp  - Vertical Pulse        =  3 lines   
// Tvfp - Vertical Front Porch  =   9 lines   
// Tvbp - Vertical Back Porch   =  28 lines   
// Tvt  - Total Horizontal Time = 520 lines x 26.416us/line = 13.73632ms or 72.8Hz   
//
// Correlation between vertical timing parameters and SED registers   
#define SED_VER_PULSE_WIDTH_CRT 0x02 // VRTC/FPFRAME Pulse Width Register    = Tvp - 1
#define SED_VER_PULSE_START_CRT 0x08 // VRTC/FPFRAME Start Position Register = Tvfp - 1				    
#define SED_VER_NONDISP_CRT		0x27 // Vertical Non-Display Period Register = (Tvp + Tvfp + Tvbp) - 1
//
// ***************************************************************************************************   
// DUAL LCD Mode is 640x480 @ 60Hz VGA compatible timing.   PCLK = 25.175Mhz (39.722ns)
// ***************************************************************************************************   
//
//                              LCD MODE HORIZONTAL TIMING PARAMTERS   
//
//                                       |<-------Tha------->|   
//                                       |___________________|                     ______   
// Display Enable   _____________________|                   |____________________|      
//                                       |                   |   
// Horizontal Pulse __           ________|___________________|________          __________   
//                    |_________|        |                   |        |________|   
//                    |<- Thp ->|        |                   |        |   
//                    |         |<-Thbp->|                   |        |   
//                    |                                      |<-Thfp->|   
//                    |<----------------------Tht-------------------->|    
//
// Tha  - Active Display Time                     = 640 pixels   
// Thp  - Horizontal Pulse       = 3.8us/39.72ns  =  96 pixels   
// Thfp - Horizontal Front Porch = .595us/39.72ns =  16 pixels   
// Thbp - Horizontal Backporch   = 1.9us/39.72ns  =  48 pixels   
// Tht  - Total Horizontal Time  =                = 800 pixels @ 39.72ns/pixel = 31.776us or 31.47Khz   
//
// Correlation between horizontal timing parameters and SED registers   
#define SED_HOR_PULSE_WIDTH_LCD 0x0b // HRTC/FPLINE Pulse Width Register       = (Thp/8) - 1
#define SED_HOR_PULSE_START_LCD	0x02 // HRTC/FPLINE Start Position Register    = (Thfp/8) - 2
#define SED_HOR_NONDISP_LCD 	0x13 // Horizontal Non-Display Period Register = ((Thp + Thfp + Thbp)/8) - 1
//
//                              LCD MODE VERTICAL TIMING PARAMTERS   
//
//                                       |<-------Tva------->|   
//                                       |___________________|                     ______   
// Display Enable   _____________________|                   |_____________________|      
//                                       |                   |   
// Vertical Pulse   __           ________|___________________|________          __________   
//                    |_________|        |                   |        |________|   
//                    |<- Tvp ->|        |                   |        |   
//                    |         |<-Tvbp->|                   |        |   
//                    |                                      |<-Tvfp->|   
//                    |<----------------------Tvt-------------------->|    
//
// Tva  - Active Display Time   = 480 lines   
// Tvp  - Vertical Pulse        = 2 lines   
// Tvfp - Vertical Front Porch  = 10 lines   
// Tvbp - Vertical Backporch    = 33 lines   
// Tvt  - Total Horizontal Time = 525 lines @ 31.776us/line = 16.682ms or 60Hz   
//
// Correlation between vertical timing parameters and SED registers   
#define SED_VER_PULSE_WIDTH_LCD 0x01 // VRTC/FPFRAME Pulse Width Register    = Tvp - 1
#define SED_VER_PULSE_START_LCD 0x09 // VRTC/FPFRAME Start Position Register = Tvfp - 1				    
#define SED_VER_NONDISP_LCD 	0x2c // Vertical Non-Display Period Register = (Tvp + Tvfp + Tvbp) - 1