
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/tseng/tseng_acl.h,v 1.16 1998/08/29 05:43:37 dawes Exp $ */


#ifndef _TSENG_ACL_H
#define _TSENG_ACL_H

/*
 * if NO_OPTIMIZE is set, some optimizations are disabled.
 *
 * What it basically tries to do is minimize the amounts of writes to
 * accelerator registers, since these are the ones that slow down small
 * operations a lot.
 */

#undef NO_OPTIMIZE

typedef volatile unsigned char *ByteP;
typedef volatile unsigned short *WordP;
typedef volatile unsigned *LongP;

void tseng_recover_timeout(TsengPtr pTseng);

/*
 * Shortcuts to Tseng memory-mapped accelerator-control registers
 */

#if 0
#endif

#define MMU_CONTROL(x)  MMIO_OUT8(pTseng->MMioBase, 0x13<<0, x)
#define ACL_SUSPEND_TERMINATE(x)  MMIO_OUT8(pTseng->MMioBase, 0x30<<0, x)
#define ACL_OPERATION_STATE(x)  MMIO_OUT8(pTseng->MMioBase, 0x31<<0, x)

#define ACL_SYNC_ENABLE(x)  MMIO_OUT8(pTseng->MMioBase, 0x32<<0, x)
    /* for ET6000, ACL_SYNC_ENABLE becomes ACL_6K_CONFIG */

#define ACL_INTERRUPT_STATUS(x) \
                        MMIO_OUT8(pTseng->MMioBase, 0x35<<0, x)
#define ACL_INTERRUPT_MASK(x) MMIO_OUT8(pTseng->MMioBase, 0x34<<0, x)
#define ACL_ACCELERATOR_STATUS (0x36 << 0)
#define ACL_ACCELERATOR_STATUS_SET(x) \
                        MMIO_OUT8(pTseng->MMioBase, ACL_ACCELERATOR_STATUS, x)
#define ACL_WRITE_INTERFACE_VALID (0x33 << 0)

    /* and this is only for the ET6000 */
#define ACL_POWER_CONTROL(x) MMIO_OUT8(pTseng->MMioBase, 0x37<<0, x)

    /* non-queued for w32p's and ET6000 */
#define ACL_NQ_X_POSITION(x)  MMIO_OUT16(pTseng->MMioBase, 0x38<<0, x)
#define ACL_NQ_Y_POSITION(x)  MMIO_OUT16(pTseng->MMioBase, 0x3A<<0, x)
    /* queued for w32 and w32i */
#define ACL_X_POSITION(x)  MMIO_OUT16(pTseng->MMioBase, 0x94<<0, x)
#define ACL_Y_POSITION(x)  MMIO_OUT16(pTseng->MMioBase, 0x96<<0, x)

#define ACL_PATTERN_ADDRESS(x)  MMIO_OUT32(pTseng->MMioBase, 0x80<<0, x)
#define ACL_SOURCE_ADDRESS(x)  MMIO_OUT32(pTseng->MMioBase, 0x84<<0, x)

#define ACL_PATTERN_Y_OFFSET(x)  MMIO_OUT16(pTseng->MMioBase, 0x88<<0, x)
#define ACL_PATTERN_Y_OFFSET32(x)  MMIO_OUT32(pTseng->MMioBase, 0x88<<0, x)
#define ACL_SOURCE_Y_OFFSET(x)  MMIO_OUT16(pTseng->MMioBase, 0x8A<<0, x)
#define ACL_DESTINATION_Y_OFFSET(x)  MMIO_OUT16(pTseng->MMioBase, 0x8C<<0, x)

    /* W32i */
#define ACL_VIRTUAL_BUS_SIZE(x) MMIO_OUT8(pTseng->MMioBase, 0x8E<<0, x)
    /* w32p */
#define ACL_PIXEL_DEPTH(x)  MMIO_OUT8(pTseng->MMioBase, 0x8E<<0, x)

    /* w32 and w32i */
#define ACL_XY_DIRECTION(x)  MMIO_OUT8(pTseng->MMioBase, 0x8F<<0, x)

#define ACL_PATTERN_WRAP(x)   MMIO_OUT8(pTseng->MMioBase, 0x90<<0, x)
#define ACL_PATTERN_WRAP32(x)   MMIO_OUT32(pTseng->MMioBase, 0x90<<0, x)
#define ACL_TRANSFER_DISABLE(x)  MMIO_OUT8(pTseng->MMioBase, 0x91<<0, x) /* ET6000 only */
#define ACL_SOURCE_WRAP(x) MMIO_OUT8(pTseng->MMioBase, 0x92<<0, x)

#define ACL_X_COUNT(x) MMIO_OUT16(pTseng->MMioBase, 0x98<<0, x)
#define ACL_Y_COUNT(x) MMIO_OUT16(pTseng->MMioBase, 0x9A<<0, x)
/* shortcut. not a real register */
#define ACL_XY_COUNT(x) MMIO_OUT32(pTseng->MMioBase, 0x98<<0, x)

#define ACL_ROUTING_CONTROL(x) MMIO_OUT8(pTseng->MMioBase, 0x9C<<0, x)
    /* for ET6000, ACL_ROUTING_CONTROL becomes ACL_MIX_CONTROL */
#define ACL_RELOAD_CONTROL(x) MMIO_OUT8(pTseng->MMioBase, 0x9D<<0, x)
    /* for ET6000, ACL_RELOAD_CONTROL becomes ACL_STEPPING_INHIBIT */

#define ACL_BACKGROUND_RASTER_OPERATION(x)  MMIO_OUT8(pTseng->MMioBase, 0x9E<<0, x)
#define ACL_FOREGROUND_RASTER_OPERATION(x)  MMIO_OUT8(pTseng->MMioBase, 0x9F<<0, x)

#define ACL_DESTINATION_ADDRESS(x) MMIO_OUT32(pTseng->MMioBase, 0xA0<<0, x)

    /* the following is for the w32p's only */
#define ACL_MIX_ADDRESS(x) MMIO_OUT32(pTseng->MMioBase, 0xA4<<0, x)

#define ACL_MIX_Y_OFFSET(x) MMIO_OUT16(pTseng->MMioBase, 0xA8<<0, x)
#define ACL_ERROR_TERM(x) MMIO_OUT16(pTseng->MMioBase, 0xAA<<0, x)
#define ACL_DELTA_MINOR(x) MMIO_OUT16(pTseng->MMioBase, 0xAC<<0, x)
#define ACL_DELTA_MINOR32(x) MMIO_OUT32(pTseng->MMioBase, 0xAC<<0, x)
#define ACL_DELTA_MAJOR(x) MMIO_OUT16(pTseng->MMioBase, 0xAE<<0, x)

    /* ET6000 only (trapezoids) */
#define ACL_SECONDARY_EDGE(x) MMIO_OUT8(pTseng->MMioBase, 0x93<<0, x)
#define ACL_SECONDARY_ERROR_TERM(x) MMIO_OUT16(pTseng->MMioBase, 0xB2<<0, x)
#define ACL_SECONDARY_DELTA_MINOR(x) MMIO_OUT16(pTseng->MMioBase, 0xB4<<0, x)
#define ACL_SECONDARY_DELTA_MINOR32(x) MMIO_OUT32(pTseng->MMioBase, 0xB4<<0, x)
#define ACL_SECONDARY_DELTA_MAJOR(x) MMIO_OUT16(pTseng->MMioBase, 0xB6<<0, x)

/* for ET6000: */
#define ACL_6K_CONFIG ACL_SYNC_ENABLE

/* for ET6000: */
#define ACL_MIX_CONTROL ACL_ROUTING_CONTROL
#define ACL_STEPPING_INHIBIT ACL_RELOAD_CONTROL


/*
 * Some data structures for faster accelerator programming.
 */

extern int W32OpTable[16];
extern int W32OpTable_planemask[16];
extern int W32PatternOpTable[16];

/*
 * Some shortcuts. 
 */

#define MAX_WAIT_CNT 500000	       /* how long we wait before we time out */
#undef WAIT_VERBOSE		       /* if defined: print out how long we waited */

static __inline__ void 
tseng_wait(TsengPtr pTseng, int reg, char *name, unsigned char mask)
{
    int cnt = MAX_WAIT_CNT;

    while ((MMIO_IN32(pTseng->MMioBase,reg)) & mask)
	if (--cnt < 0) {
	    ErrorF("WAIT_%s: timeout.\n", name);
	    tseng_recover_timeout(pTseng);
	    break;
	}
#ifdef WAIT_VERBOSE
    ErrorF("%s%d ", name, MAX_WAIT_CNT - cnt);
#endif
}

#define WAIT_QUEUE tseng_wait(pTseng, ACL_ACCELERATOR_STATUS, "QUEUE", 0x1)

/* This is only for W32p rev b...d */
#define WAIT_INTERFACE tseng_wait(pTseng, ACL_WRITE_INTERFACE_VALID, "INTERFACE", 0xf)

#define WAIT_ACL tseng_wait(pTseng, ACL_ACCELERATOR_STATUS, "ACL", 0x2)

#define WAIT_XY tseng_wait(pTseng, ACL_ACCELERATOR_STATUS, "XY", 0x4)

#define SET_FUNCTION_BLT \
    if (Is_ET6K) \
        ACL_MIX_CONTROL(0x33); \
    else \
        ACL_ROUTING_CONTROL(0x00);

#define SET_FUNCTION_BLT_TR \
        ACL_MIX_CONTROL(0x13);

#define FBADDR(pTseng, x,y) ( (y) * pTseng->line_width + MULBPP(pTseng, x) )

#define SET_FG_ROP(rop) \
    ACL_FOREGROUND_RASTER_OPERATION(W32OpTable[rop]);

#define SET_FG_ROP_PLANEMASK(rop) \
    ACL_FOREGROUND_RASTER_OPERATION(W32OpTable_planemask[rop]);

#define SET_BG_ROP(rop) \
    ACL_BACKGROUND_RASTER_OPERATION(W32PatternOpTable[rop]);

#define SET_BG_ROP_TR(rop, bg_color) \
  if ((bg_color) == -1)    /* transparent color expansion */ \
    ACL_BACKGROUND_RASTER_OPERATION(0xaa); \
  else \
    ACL_BACKGROUND_RASTER_OPERATION(W32PatternOpTable[rop]);

#define SET_DELTA(Min, Maj) \
    ACL_DELTA_MINOR32(((Maj) << 16) + (Min))

#define SET_SECONDARY_DELTA(Min, Maj) \
    ACL_SECONDARY_DELTA_MINOR(((Maj) << 16) + (Min))

#ifdef NO_OPTIMIZE
#define SET_XYDIR(dir) \
      ACL_XY_DIRECTION(dir);
#else
/*
 * only changing ACL_XY_DIRECTION when it needs to be changed avoids
 * unnecessary PCI bus writes, which are slow. This shows up very well
 * on consecutive small fills.
 */
#define SET_XYDIR(dir) \
    if ((dir) != pTseng->tseng_old_dir) \
      pTseng->tseng_old_dir = (dir); \
      ACL_XY_DIRECTION(pTseng->tseng_old_dir);
#endif

#define SET_SECONDARY_XYDIR(dir) \
      ACL_SECONDARY_EDGE(dir);

/* Must do 0x09 (in one operation) for the W32 */
#define START_ACL(pTseng, dst) \
    ACL_DESTINATION_ADDRESS(dst); \
    if (Is_W32 || Is_W32i) ACL_OPERATION_STATE(0x09);

/* START_ACL for the ET6000 */
#define START_ACL_6(dst) \
    ACL_DESTINATION_ADDRESS(dst);

#define START_ACL_CPU(pTseng, dst) \
    if (Is_W32 || Is_W32i) \
      MMIO_OUT32(pTseng->MMioBase, 0x08<<8,(CARD32)dst); /* writing to MMU2 will trigger accel at this address */ \
    else \
      ACL_DESTINATION_ADDRESS(dst);

/*    ACL_DESTINATION_ADDRESS(dst);    should be enough for START_ACL_CPU */

/***********************************************************************/

void tseng_init_acl(ScrnInfoPtr pScrn);

Bool TsengXAAInit(ScreenPtr pScreen);

Bool TsengXAAInit_Colexp(ScrnInfoPtr pScrn);

#endif

