haiku/headers/private/graphics/tdfx/DriverInterface.h

189 lines
6.0 KiB
C
Raw Normal View History

/*
Copyright 1999, Be Incorporated. All Rights Reserved.
This file may be used under the terms of the Be Sample Code License.
*/
#ifndef DRIVERINTERFACE_H
#define DRIVERINTERFACE_H
#include <Accelerant.h>
#include <Drivers.h>
#include <PCI.h>
#include <OS.h>
/*
This is the info that needs to be shared between the kernel driver and
the accelerant for the sample driver.
*/
#if defined(__cplusplus)
extern "C" {
#endif
#define MAXBUFFERS 8
typedef struct
{
uint16 slopspace;
uint32 size;
} int_buf_info;
typedef struct
{
sem_id sem;
int32 ben;
} benaphore;
#define INIT_BEN(x) x.sem = create_sem(0, "VOODOO "#x" benaphore"); x.ben = 0;
#define AQUIRE_BEN(x) if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
#define RELEASE_BEN(x) if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
#define DELETE_BEN(x) delete_sem(x.sem);
#define VOODOO_PRIVATE_DATA_MAGIC 0x1234 /* a private driver rev, of sorts */
#define MAX_VOODOO_DEVICE_NAME_LENGTH 32
#define SKD_MOVE_CURSOR 0x00000001
#define SKD_PROGRAM_CLUT 0x00000002
#define SKD_SET_START_ADDR 0x00000004
#define SKD_SET_CURSOR 0x00000008
#define SKD_HANDLER_INSTALLED 0x80000000
enum
{
VOODOO_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
VOODOO_GET_PCI,
VOODOO_SET_PCI,
VOODOO_DEVICE_NAME,
VOODOO_RUN_INTERRUPTS,
VOODOO_DPRINTF,
VOODOO_INB,
VOODOO_INW,
VOODOO_INL,
VOODOO_OUTB,
VOODOO_OUTW,
VOODOO_OUTL
};
typedef struct
{
uint16 vendor_id; /* PCI vendor ID, from pci_info */
uint16 device_id; /* PCI device ID, from pci_info */
uint8 revision; /* PCI device revsion, from pci_info */
uint32 iobase; /* PCI IOBase */
area_id regs_area; /* Kernel's area_id for the memory mapped registers.
It will be cloned into the accelerant's address
space. */
area_id fb_area; /* Frame buffer's area_id. The addresses are shared
with all teams. */
void *framebuffer; /* As viewed from virtual memory */
void *framebuffer_pci; /* As viewed from the PCI bus (for DMA) */
area_id io_area; /* Mapped ROM's area_id */
uint32 io; /* As viewed from virtual memory. Shared by all teams */
area_id mode_area; /* Contains the list of display modes the driver supports */
uint32 mode_count; /* Number of display modes in the list */
sem_id vblank; /* The vertical blank semaphore. Ownership will be
transfered to the team opening the device first */
int32 flags;
int32 start_addr;
struct
{
uint8* data; /* Pointer into the frame buffer to where the
cursor data starts */
uint16 hot_x; /* Cursor hot spot. The top left corner of the cursor */
uint16 hot_y; /* is 0,0 */
uint16 x; /* The location of the cursor hot spot on the */
uint16 y; /* display (or desktop?) */
uint16 width; /* Width and height of the cursor shape */
uint16 height;
bool is_visible; /* Is the cursor currently displayed? */
} cursor;
uint16 first_color;
uint16 color_count;
bigtime_t refresh_period; /* Duration of one frame (ie 1/refresh rate) */
bigtime_t blank_period; /* Duration of the blanking period. These are
usefull when faking vertical blanking
interrupts. */
uint8 color_data[3 * 256]; /* */
uint8 cursor0[64*64/8]; /* AND mask for a 64x64 cursor */
uint8 cursor1[512]; /* XOR mask for a 64x64 cursor */
display_mode dm; /* current display mode configuration */
frame_buffer_config
fbc; /* bytes_per_row and start of frame buffer */
struct
{
uint64 count; /* last fifo slot used */
uint64 last_idle; /* last fifo slot we *know* the engine was idle after */
benaphore lock; /* for serializing access to the acceleration engine */
} engine;
struct
{
overlay_buffer myBuffer[MAXBUFFERS]; /* scaler input buffers */
int_buf_info myBufInfo[MAXBUFFERS]; /* extra info on scaler input buffers */
overlay_token myToken; /* scaler is free/in use */
benaphore lock; /* for creating buffers and aquiring overlay unit routines */
} overlay;
uint32 pix_clk_max8; /* The maximum speed the pixel clock should run */
uint32 pix_clk_max16; /* at for a given pixel width. Usually a function */
uint32 pix_clk_max32; /* of memory and DAC bandwidths. */
uint32 mem_size; /* Frame buffer memory, in bytes. */
} shared_info;
/* Read or write a value in PCI configuration space */
typedef struct
{
uint32 magic; /* magic number to make sure the caller groks us */
uint32 offset; /* Offset to read/write */
uint32 size; /* Number of bytes to transfer */
uint32 value; /* The value read or written */
} voodoo_get_set_pci;
/* Set some boolean condition (like enabling or disabling interrupts) */
typedef struct
{
uint32 magic; /* magic number to make sure the caller groks us */
bool do_it; /* state to set */
} voodoo_set_bool_state;
/* Retrieve the area_id of the kernel/accelerant shared info */
typedef struct
{
uint32 magic; /* magic number to make sure the caller groks us */
area_id shared_info_area; /* area_id containing the shared information */
} voodoo_get_private_data;
/* Retrieve the device name. Usefull for when we have a file handle, but want
to know the device name (like when we are cloning the accelerant) */
typedef struct
{
uint32 magic; /* magic number to make sure the caller groks us */
char *name; /* The name of the device, less the /dev root */
} voodoo_device_name;
typedef struct
{
uint32 port;
uint8 data8;
uint16 data16;
uint32 data32;
} voodoo_port_io;
enum
{
VOODOO_WAIT_FOR_VBLANK = (1 << 0)
};
#if defined(__cplusplus)
}
#endif
#endif