189 lines
6.0 KiB
C
189 lines
6.0 KiB
C
/*
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Copyright 1999, Be Incorporated. All Rights Reserved.
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This file may be used under the terms of the Be Sample Code License.
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*/
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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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/*
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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 sample 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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#define MAXBUFFERS 8
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typedef struct
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{
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uint16 slopspace;
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uint32 size;
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} int_buf_info;
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typedef struct
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{
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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, "VOODOO "#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 VOODOO_PRIVATE_DATA_MAGIC 0x1234 /* a private driver rev, of sorts */
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#define MAX_VOODOO_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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{
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VOODOO_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
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VOODOO_GET_PCI,
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VOODOO_SET_PCI,
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VOODOO_DEVICE_NAME,
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VOODOO_RUN_INTERRUPTS,
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VOODOO_DPRINTF,
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VOODOO_INB,
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VOODOO_INW,
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VOODOO_INL,
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VOODOO_OUTB,
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VOODOO_OUTW,
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VOODOO_OUTL
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};
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typedef struct
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{
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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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uint32 iobase; /* PCI IOBase */
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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 io_area; /* Mapped ROM's area_id */
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uint32 io; /* 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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{
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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 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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{
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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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} engine;
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struct
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{
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overlay_buffer myBuffer[MAXBUFFERS]; /* scaler input buffers */
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int_buf_info myBufInfo[MAXBUFFERS]; /* extra info on scaler input buffers */
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overlay_token myToken; /* scaler is free/in use */
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benaphore lock; /* for creating buffers and aquiring overlay unit routines */
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} overlay;
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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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} 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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{
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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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} voodoo_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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{
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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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} voodoo_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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{
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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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} voodoo_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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{
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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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} voodoo_device_name;
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typedef struct
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{
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uint32 port;
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uint8 data8;
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uint16 data16;
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uint32 data32;
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} voodoo_port_io;
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enum
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{
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VOODOO_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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