/*Copyright 1999, Be Incorporated. All Rights Reserved.This file may be used under the terms of the Be Sample Code License.Other authors:Rudolf Cornelissen 4/2003-1/2006*/#ifndef DRIVERINTERFACE_H#define DRIVERINTERFACE_H#include <Accelerant.h>#include "video_overlay.h"#include <Drivers.h>#include <PCI.h>#include <OS.h>#define DRIVER_PREFIX "neomagic"/*Internal driver state (also for sharing info between driver and accelerant)*/#if defined(__cplusplus)extern "C" {#endiftypedef struct {sem_id sem;int32 ben;} benaphore;#define INIT_BEN(x) x.sem = create_sem(0, "NM "#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 NM_PRIVATE_DATA_MAGIC 0x0009 /* a private driver rev, of sorts *//*dualhead extensions to flags*/#define DUALHEAD_OFF (0<<6)#define DUALHEAD_CLONE (1<<6)#define DUALHEAD_ON (2<<6)#define DUALHEAD_SWITCH (3<<6)#define DUALHEAD_BITS (3<<6)#define DUALHEAD_CAPABLE (1<<8)#define TV_BITS (3<<9)#define TV_MON (0<<9#define TV_PAL (1<<9)#define TV_NTSC (2<<9)#define TV_CAPABLE (1<<11)#define TV_VIDEO (1<<12)#define TV_PRIMARY (1<<13)#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 0x80000000enum {NM_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,NM_GET_PCI,NM_SET_PCI,NM_DEVICE_NAME,NM_RUN_INTERRUPTS,NM_ISA_OUT,NM_ISA_IN,NM_PGM_BES};/* max. number of overlay buffers */#define MAXBUFFERS 3/* internal used info on overlay buffers */typedef struct{uint16 slopspace;uint32 size;} int_buf_info;typedef struct settings { // apsed, see comments in nm.settings// for driverchar accelerant[B_FILE_NAME_LENGTH];bool dumprom;// for accelerantuint32 logmask;uint32 memory;bool usebios;bool hardcursor;} settings;/*shared info*/typedef struct {/*a few ID things*/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 *//* used to return status for INIT_ACCELERANT and CLONE_ACCELERANT */bool accelerant_in_use;/* bug workaround for 4.5.0 */uint32 use_clone_bugfix; /*for 4.5.0, cloning of physical memory does not work*/uint32 * clone_bugfix_regs;uint32 * clone_bugfix_regs2;/* old cards have their registers mapped inside the framebuffer area */bool regs_in_fb;/*memory mappings*/area_id regs_area, regs2_area; /* Kernel's area_id for the memory mapped registers.It will be cloned into the accelerant's addressspace. */area_id fb_area; /* Frame buffer's area_id. The addresses are shared with all teams. */area_id pseudo_dma_area; /* Pseudo dma area_id. Shared by all teams. */area_id dma_buffer_area; /* Area assigned for dma*/void *framebuffer; /* As viewed from virtual memory */void *framebuffer_pci; /* As viewed from the PCI bus (for DMA) */void *pseudo_dma; /* As viewed from virtual memory */void *dma_buffer; /* buffer for dma*/void *dma_buffer_pci; /* buffer for dma - from PCI bus*//*screenmode list*/area_id mode_area; /* Contains the list of display modes the driver supports */uint32 mode_count; /* Number of display modes in the list *//*flags - used by driver*/uint32 flags;/*vblank semaphore*/sem_id vblank; /* The vertical blank semaphore. Ownership will betransfered to the team opening the device first *//*cursor information*/struct {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; /* desktop */uint16 width; /* Width and height of the cursor shape (always 16!) */uint16 height;bool is_visible; /* Is the cursor currently displayed? */} cursor;/*colour lookup table*/uint8 color_data[3 * 256]; /* Colour lookup table - as used by DAC *//*more display mode stuff*/display_mode dm; /* current display mode configuration: head1 */uint32 dpms_flags; /* current DPMS mode */bool acc_mode; /* signals (non)accelerated mode *//*frame buffer config - for BDirectScreen*/frame_buffer_config fbc; /* bytes_per_row and start of frame buffer: head1 */accelerant_device_info adi; /* as returned by hook GET_ACCELERANT_DEVICE_INFO *//*acceleration engine*/struct {uint32 count; /* last dwgsync slot used */uint32 last_idle; /* last dwgsync slot we *know* the engine was idle after */benaphore lock; /* for serializing access to the acceleration engine */uint32 control; /* colordepth, memory pitch and other config stuff */uint8 depth; /* bytes per pixel used */} engine;/* card info - information gathered from PINS (and other sources) */enum{ // card_type in order of date of nm chip designNM2070 = 0,NM2090,NM2093,NM2097,NM2160,NM2200,NM2230,NM2360,NM2380} card_type;struct{/* specialised registers for predefined cardspecs *//* general card information */uint32 card_type; /* see card_type enum above */bool int_assigned; /* card has a useable INT assigned to it *//* PINS */float f_ref; /* PLL reference-oscillator frequency (Mhz) */uint32 max_system_vco; /* graphics engine PLL VCO limits (Mhz) */uint32 min_system_vco;uint32 max_pixel_vco; /* dac1 PLL VCO limits (Mhz) */uint32 min_pixel_vco;uint32 std_engine_clock; /* graphics engine clock speed needed (Mhz) */uint32 max_dac1_clock; /* dac1 limits (Mhz) */uint32 max_dac1_clock_8; /* dac1 limits correlated to RAMspeed limits (Mhz) */uint32 max_dac1_clock_16;uint32 max_dac1_clock_24;uint32 memory_size; /* memory (Kbytes) */uint32 curmem_size; /* memory (bytes) */uint16 max_crtc_width; /* CRTC max constraints */uint16 max_crtc_height;uint8 panel_type; /* panel type */uint16 panel_width; /* panel size */uint16 panel_height;uint8 outputs; /* in BIOS preselected output(s) */} ps;/*mirror of the ROM (copied in driver, because may not be mapped permanently - only over fb)*/uint8 rom_mirror[65536];/* apsed: some configuration settings from ~/config/settings/kernel/drivers/nm.settings if exists */settings settings;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 *//* variables needed for virtualscreens (move_overlay()): */bool active; /* true is overlay currently in use */overlay_window ow; /* current position of overlay output window */overlay_buffer ob; /* current inputbuffer in use */overlay_view my_ov; /* current corrected view in inputbuffer */uint32 h_ifactor; /* current 'unclipped' horizontal inverse scaling factor */uint32 v_ifactor; /* current 'unclipped' vertical inverse scaling factor */} overlay;} 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 */} nm_get_set_pci;/* Read or write a value in ISA I/O space */typedef struct {uint32 magic; /* magic number to make sure the caller groks us */uint16 adress; /* Offset to read/write */uint8 size; /* Number of bytes to transfer */uint16 data; /* The value read or written */} nm_in_out_isa;/* move_overlay related info */typedef struct {uint32 hcoordv; /* left and right edges of video output window */uint32 vcoordv; /* top and bottom edges of video output window */uint32 hsrcendv; /* horizontal source end in source buffer (clipping) */uint32 a1orgv; /* vertical source clipping via startadress of source buffer */} move_overlay_info;/* setup ISA BES registers for overlay on ISA cards */typedef struct {uint32 magic; /* magic number to make sure the caller groks us */uint32 card_type; /* see card_type enum above */uint32 hiscalv;uint32 viscalv;uint32 globctlv;uint32 weight;uint8 colkey_r;uint8 colkey_g;uint8 colkey_b;uint16 ob_width;move_overlay_info moi;bool move_only;} nm_bes_data;/* 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 */} nm_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 */} nm_get_private_data;/* Retrieve the device name. Usefull for when we have a file handle, but wantto 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 */} nm_device_name;enum {_WAIT_FOR_VBLANK = (1 << 0)};#if defined(__cplusplus)}#endif#endif