363 lines
7.3 KiB
C
363 lines
7.3 KiB
C
/*++
|
|
|
|
Copyright (c) 1993 Weitek Corporation
|
|
|
|
Module Name:
|
|
|
|
Bt485.h
|
|
|
|
Abstract:
|
|
|
|
This module contains the Bt485 specific DAC definitions for the
|
|
Weitek P9 miniport device driver.
|
|
|
|
Environment:
|
|
|
|
Kernel mode
|
|
|
|
Revision History may be found at the end of this file.
|
|
|
|
--*/
|
|
|
|
//
|
|
// Define the relative offset of each of the Bt485 registers in the
|
|
// DACRegisters array found in the Device Extension.
|
|
//
|
|
|
|
typedef enum
|
|
{
|
|
RS_0,
|
|
RS_1,
|
|
RS_2,
|
|
RS_3,
|
|
RS_4,
|
|
RS_5,
|
|
RS_6,
|
|
RS_7,
|
|
RS_8,
|
|
RS_9,
|
|
RS_A,
|
|
RS_B,
|
|
RS_C,
|
|
RS_D,
|
|
RS_E,
|
|
RS_F,
|
|
NUM_DAC_REGS
|
|
} DAC_REG_INDEX;
|
|
|
|
//
|
|
// The following definitions provide a readable means of referencing the
|
|
// Bt485 registers via their virtual addresses found in the
|
|
// HwDeviceExtension.
|
|
//
|
|
|
|
#define PAL_WR_ADDR_REG HwDeviceExtension->pDACRegs[RS_0]
|
|
#define PAL_DATA_REG HwDeviceExtension->pDACRegs[RS_1]
|
|
#define PIXEL_MSK_REG HwDeviceExtension->pDACRegs[RS_2]
|
|
#define PAL_RD_ADDR_REG HwDeviceExtension->pDACRegs[RS_3]
|
|
#define CURS_CLR_ADDR HwDeviceExtension->pDACRegs[RS_4]
|
|
#define CURS_CLR_DATA HwDeviceExtension->pDACRegs[RS_5]
|
|
#define CMD_REG_0 HwDeviceExtension->pDACRegs[RS_6]
|
|
#define CLR_RD_ADDR_REG HwDeviceExtension->pDACRegs[RS_7]
|
|
#define CMD_REG_1 HwDeviceExtension->pDACRegs[RS_8]
|
|
#define CMD_REG_2 HwDeviceExtension->pDACRegs[RS_9]
|
|
#define CMD_REG_3 HwDeviceExtension->pDACRegs[RS_A]
|
|
#define CURS_DATA_REG HwDeviceExtension->pDACRegs[RS_B]
|
|
#define CURS_X HwDeviceExtension->pDACRegs[RS_C]
|
|
#define CURS_X_HI HwDeviceExtension->pDACRegs[RS_D]
|
|
#define CURS_Y HwDeviceExtension->pDACRegs[RS_E]
|
|
#define CURS_Y_HI HwDeviceExtension->pDACRegs[RS_F]
|
|
|
|
//
|
|
// Bit definitions for CMD_REG_0.
|
|
//
|
|
|
|
#define ENB_CMD_REG_3 0x80
|
|
#define DIS_CMD_REG_3 0x00
|
|
#define MODE_8_BIT 0x02
|
|
|
|
//
|
|
// Bit definitions for CMD_REG_1.
|
|
//
|
|
|
|
#define PIX_PORT_24 0x60
|
|
#define PIX_PORT_8 0x40
|
|
#define PIX_PORT_16 0x30
|
|
#define PIX_PORT_32 0x10
|
|
|
|
|
|
//
|
|
// Bit definitions for CMD_REG_2.
|
|
//
|
|
|
|
#define SCLK_INV 0x40 // Bt489 - invert SCLK if in forbidden region
|
|
#define SCLK_NORM ~SCLK_INV
|
|
#define PORTSEL_MSKD 0x20
|
|
#define PCLK1_SEL 0x10
|
|
#define PCLK0_SEL ~PCLK1_SEL
|
|
#define CURS_ACTIVE 0x03
|
|
#define ENB_CURS 0x02
|
|
#define DIS_CURS ~CURS_ACTIVE
|
|
|
|
//
|
|
// Bit definitions for CMD_REG_3.
|
|
//
|
|
|
|
#define CUR_MODE_64 0x04
|
|
#define CUR_MODE_32 ~CUR_MODE_64
|
|
#define DAC_CLK_2X 0x08
|
|
#define DAC_CLK_2X_489 0x80 // per os2 driver code - undocumented for Bt489
|
|
#define CUR_REG_IND_MSK ~0x03
|
|
|
|
//
|
|
// Bit definitions for CMD_REG_4 on Bt489.
|
|
//
|
|
|
|
#define MUX_485_COMPAT (0x00<<4) // 485 compatible value - set at reset
|
|
#define CR4_MUX_81 (0x02<<4) // 489 8:1 mux mode (8 bpp)
|
|
#define CR4_MUX_41 (0x03<<4) // 489 4:1 mux mode (16 bpp)
|
|
#define CR4_MUX_21 (0x04<<4) // 489 2:1 mux mode (32 bpp)
|
|
#define CR4_MUX_24BPP (0x07<<4) // 489 24 bpp mux mode (24 bpp)
|
|
#define CR4_MUX_BITS (0x07<<4)
|
|
|
|
//
|
|
// Bit definitions for PAL_WR_ADDR to enable CMD_REG_3.
|
|
//
|
|
|
|
#define CMD_REG_3_ENB 0x01
|
|
#define CMD_REG_3_DIS 0x00
|
|
|
|
//
|
|
// Bit definitions for PAL_WR_ADDR to enable CMD_REG_4 on Bt489.
|
|
//
|
|
|
|
#define CMD_REG_4_ENB 0x02
|
|
#define CMD_REG_4_DIS 0x00
|
|
|
|
//
|
|
// Max clock frequency supported w/o clock doubling.
|
|
//
|
|
//
|
|
|
|
#define CLK_MAX_FREQ 6750
|
|
#define CLK489_MAX_FREQ 8500
|
|
|
|
//
|
|
// General purpose macros for accessing the DAC registers.
|
|
//
|
|
|
|
|
|
//
|
|
// Macros for accessing the palette registers.
|
|
//
|
|
|
|
extern VOID
|
|
WriteDAC(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG ulIndex,
|
|
UCHAR ucValue
|
|
);
|
|
|
|
extern UCHAR
|
|
ReadDAC(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG ulIndex
|
|
);
|
|
|
|
#define RD_DAC(addr) \
|
|
ReadDAC(HwDeviceExtension, (ULONG) addr)
|
|
|
|
#define WR_DAC(addr, data) \
|
|
WriteDAC(HwDeviceExtension, (ULONG) addr, (UCHAR) (data))
|
|
|
|
#define PAL_WR_ADDR(data) \
|
|
WriteDAC(HwDeviceExtension, PAL_WR_ADDR_REG, (data))
|
|
|
|
#define PAL_WR_DATA(data) \
|
|
WriteDAC(HwDeviceExtension, PAL_DATA_REG, (data))
|
|
|
|
//
|
|
// Macros for accessing the command register 3.
|
|
//
|
|
|
|
#define WR_CMD_REG_3(data) \
|
|
WR_DAC(CMD_REG_0, RD_DAC(CMD_REG_0) | ENB_CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_3_ENB); \
|
|
WR_DAC(CMD_REG_3, (data)); \
|
|
PAL_WR_ADDR(CMD_REG_3_DIS)
|
|
|
|
#define RD_CMD_REG_3(data) \
|
|
WR_DAC(CMD_REG_0, RD_DAC(CMD_REG_0) | ENB_CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_3_ENB); \
|
|
data = RD_DAC(CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_3_DIS)
|
|
|
|
//
|
|
// Macros for accessing the command register 4 on Bt489 DAC.
|
|
//
|
|
|
|
#define WR_CMD_REG_4(data) \
|
|
WR_DAC(CMD_REG_0, RD_DAC(CMD_REG_0) | ENB_CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_4_ENB); \
|
|
WR_DAC(CMD_REG_3, (data)); \
|
|
PAL_WR_ADDR(CMD_REG_4_DIS)
|
|
|
|
#define RD_CMD_REG_4(data) \
|
|
WR_DAC(CMD_REG_0, RD_DAC(CMD_REG_0) | ENB_CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_4_ENB); \
|
|
data = RD_DAC(CMD_REG_3); \
|
|
PAL_WR_ADDR(CMD_REG_4_DIS)
|
|
|
|
//
|
|
// Macros for accessing the hardware cursor registers.
|
|
//
|
|
|
|
#define WR_CURS_POS_X(pos) \
|
|
WR_DAC(CURS_X, (UCHAR) pos); \
|
|
WR_DAC(CURS_X_HI, (UCHAR) (pos >> 8))
|
|
|
|
#define WR_CURS_POS_Y(pos) \
|
|
WR_DAC(CURS_Y, (UCHAR) pos); \
|
|
WR_DAC(CURS_Y_HI, (UCHAR) (pos >> 8))
|
|
|
|
#define WR_CURS_DATA(data) \
|
|
WR_DAC(CURS_DATA_REG, (data))
|
|
|
|
|
|
#define CURS_IS_ON() \
|
|
(RD_DAC(CMD_REG_2) & CURS_ACTIVE)
|
|
|
|
#define CURS_ON() \
|
|
WR_DAC(CMD_REG_2, RD_DAC(CMD_REG_2) | ENB_CURS)
|
|
|
|
#define CURS_OFF() \
|
|
WR_DAC(CMD_REG_2, RD_DAC(CMD_REG_2) & DIS_CURS)
|
|
|
|
|
|
//
|
|
// Function Prototypes for the Bt485 DAC which are defined in BT485.C.
|
|
//
|
|
//
|
|
// Bt485 function prototypes.
|
|
//
|
|
|
|
VOID
|
|
Bt485SetPalette(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG *pPal,
|
|
ULONG StartIndex,
|
|
ULONG Count
|
|
);
|
|
|
|
VOID
|
|
Bt485SetPointerPos(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG ptlX,
|
|
ULONG ptlY
|
|
);
|
|
|
|
VOID
|
|
Bt485SetPointerShape(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
PUCHAR pHWCursorShape
|
|
);
|
|
|
|
VOID
|
|
Bt485PointerOn(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt485PointerOff(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt485ClearPalette(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
BOOLEAN
|
|
Bt485SetMode(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt485RestoreMode(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt485SetClkDoubler(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt485ClrClkDoubler(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
|
|
//
|
|
// Function Prototypes for the Bt489 DAC which are defined in P91BT489.C.
|
|
//
|
|
//
|
|
// Bt489 function prototypes.
|
|
//
|
|
|
|
VOID
|
|
Bt489SetPalette(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG *pPal,
|
|
ULONG StartIndex,
|
|
ULONG Count
|
|
);
|
|
|
|
VOID
|
|
Bt489SetPointerPos(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
ULONG ptlX,
|
|
ULONG ptlY
|
|
);
|
|
|
|
VOID
|
|
Bt489SetPointerShape(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension,
|
|
PUCHAR pHWCursorShape
|
|
);
|
|
|
|
VOID
|
|
Bt489PointerOn(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt489PointerOff(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt489ClearPalette(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
BOOLEAN
|
|
Bt489SetMode(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt489RestoreMode(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt489SetClkDoubler(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|
|
|
|
VOID
|
|
Bt489ClrClkDoubler(
|
|
PHW_DEVICE_EXTENSION HwDeviceExtension
|
|
);
|