186 lines
6.2 KiB
C
186 lines
6.2 KiB
C
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#ifndef DRIVERINTERFACE_H
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#define DRIVERINTERFACE_H
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#include <Accelerant.h>
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#include <Drivers.h>
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#include <PCI.h>
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#include <OS.h>
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/* ATI Mach64 Definitions */
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#include "regmach64.h"
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/*
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This is the info that needs to be shared between the kernel driver and
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the accelerant for the atimach64 driver.
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*/
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#if defined(__cplusplus)
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extern "C" {
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#endif
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typedef struct {
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sem_id sem;
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int32 ben;
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} benaphore;
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#define INIT_BEN(x) x.sem = create_sem(0, "ATIMACH64 "#x" benaphore"); x.ben = 0;
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#define AQUIRE_BEN(x) if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
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#define RELEASE_BEN(x) if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
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#define DELETE_BEN(x) delete_sem(x.sem);
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#define inb(a) *((vuint8 *)((uint32)(si->regs) + (a)))
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#define outb(a, b) *((vuint8 *)((uint32)(si->regs) + (a))) = (b)
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#define inh(a) *((vuint16 *)((uint32)(si->regs) + (a)))
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#define outh(a, b) *((vuint16 *)((uint32)(si->regs) + (a))) = (b)
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#define inw(a) *((vuint32 *)((uint32)(si->regs) + (a)))
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#define outw(a, b) *((vuint32 *)((uint32)(si->regs) + (a))) = (b)
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#define rom(a) *((vuchar *)((uint32)(si->regs) + (a)))
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#define romsi(a) *((vuint16 *)((uint32)(si->regs) + (a)))
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#define rommem(a) ((char *)((uint32)(si->regs) + (a)))
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#define ATIMACH64_PRIVATE_DATA_MAGIC 0x1234 /* a private driver rev, of sorts */
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#define MAX_ATIMACH64_DEVICE_NAME_LENGTH 32
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#define SKD_MOVE_CURSOR 0x00000001
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#define SKD_PROGRAM_CLUT 0x00000002
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#define SKD_SET_START_ADDR 0x00000004
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#define SKD_SET_CURSOR 0x00000008
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#define SKD_HANDLER_INSTALLED 0x80000000
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enum {
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ATIMACH64_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
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ATIMACH64_GET_PCI,
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ATIMACH64_SET_PCI,
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ATIMACH64_DEVICE_NAME,
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ATIMACH64_RUN_INTERRUPTS
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};
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typedef struct {
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uint16 vendor_id; /* PCI vendor ID, from pci_info */
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uint16 device_id; /* PCI device ID, from pci_info */
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uint8 revision; /* PCI device revsion, from pci_info */
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void *regs; /* Registers offset within buffer */
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area_id regs_area; /* Kernel's area_id for the memory mapped registers.
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It will be cloned into the accelerant's address
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space. */
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area_id fb_area; /* Frame buffer's area_id. The addresses are shared
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with all teams. */
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void *framebuffer; /* As viewed from virtual memory */
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void *framebuffer_pci; /* As viewed from the PCI bus (for DMA) */
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area_id rom_area; /* Mapped ROM's area_id */
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void *rom; /* As viewed from virtual memory. Shared by all teams */
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area_id mode_area; /* Contains the list of display modes the driver supports */
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uint32 mode_count; /* Number of display modes in the list */
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sem_id vblank; /* The vertical blank semaphore. Ownership will be
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transfered to the team opening the device first */
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int32 flags;
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int32 start_addr;
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struct {
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uint8* data; /* Pointer into the frame buffer to where the
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cursor data starts */
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uint16 hot_x; /* Cursor hot spot. The top left corner of the cursor */
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uint16 hot_y; /* is 0,0 */
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uint16 x; /* The location of the cursor hot spot on the */
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uint16 y; /* display (or desktop?) */
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uint16 width; /* Width and height of the cursor shape */
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uint16 height;
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bool is_visible; /* Is the cursor currently displayed? */
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} cursor;
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uint16 first_color;
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uint16 color_count;
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bigtime_t refresh_period; /* Duration of one frame (ie 1/refresh rate) */
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bigtime_t blank_period; /* Duration of the blanking period. These are
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usefull when faking vertical blanking
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interrupts. */
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uint8 color_data[3 * 256]; /* */
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uint8 cursor0[64*64/8]; /* AND mask for a 64x64 cursor */
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uint8 cursor1[512]; /* XOR mask for a 64x64 cursor */
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display_mode
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dm; /* current display mode configuration */
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frame_buffer_config
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fbc; /* bytes_per_row and start of frame buffer */
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struct {
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uint64 count; /* last fifo slot used */
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uint64 last_idle; /* last fifo slot we *know* the engine was idle after */
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benaphore lock; /* for serializing access to the acceleration engine */
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uint64 fifo_limit;
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} engine;
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uint32 pix_clk_max8; /* The maximum speed the pixel clock should run */
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uint32 pix_clk_max16; /* at for a given pixel width. Usually a function */
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uint32 pix_clk_max32; /* of memory and DAC bandwidths. */
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uint32 mem_size; /* Frame buffer memory, in bytes. */
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/* Specific info for the Mach64 follows */
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uint8 board_identifier[2];
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uint8 equipment_flags[2];
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uint8 asic_identifier;
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uint8 bios_major;
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uint8 bios_minor;
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char bios_date[20];
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uint8 VGA_Wonder_Present;
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uint8 Mach64_Present;
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uint8 Bus_Type;
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uint8 Mem_Type;
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uint8 Mem_Size; /* The result of querying AtiMach64 */
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uint8 DAC_Type;
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uint8 DAC_SubType;
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uint8 Clock_Type;
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uint16 MinFreq;
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uint16 MaxFreq;
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uint16 RefFreq;
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uint16 RefDivider;
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uint16 NAdj;
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uint16 DRAMMemClk;
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uint16 VRAMMemClk;
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uint16 MemClk;
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uint16 CXClk;
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uint16 Clocks[MACH64_NUM_CLOCKS];
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uint8 MemCycle;
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mach64FreqRec Freq_Table[MACH64_NUM_FREQS];
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mach64FreqRec Freq_Table2[MACH64_NUM_FREQS];
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} shared_info;
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/* Read or write a value in PCI configuration space */
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typedef struct {
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uint32 magic; /* magic number to make sure the caller groks us */
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uint32 offset; /* Offset to read/write */
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uint32 size; /* Number of bytes to transfer */
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uint32 value; /* The value read or written */
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} atimach64_get_set_pci;
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/* Set some boolean condition (like enabling or disabling interrupts) */
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typedef struct {
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uint32 magic; /* magic number to make sure the caller groks us */
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bool do_it; /* state to set */
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} atimach64_set_bool_state;
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/* Retrieve the area_id of the kernel/accelerant shared info */
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typedef struct {
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uint32 magic; /* magic number to make sure the caller groks us */
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area_id shared_info_area; /* area_id containing the shared information */
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} atimach64_get_private_data;
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/* Retrieve the device name. Usefull for when we have a file handle, but want
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to know the device name (like when we are cloning the accelerant) */
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typedef struct {
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uint32 magic; /* magic number to make sure the caller groks us */
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char *name; /* The name of the device, less the /dev root */
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} atimach64_device_name;
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enum {
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ATIMACH64_WAIT_FOR_VBLANK = (1 << 0)
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};
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#if defined(__cplusplus)
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}
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#endif
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#endif
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