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+/* $XConsortium: nvreg.h /main/2 1996/10/28 05:13:41 kaleb $ */
+/*
+ * Copyright 1996-1997  David J. McKay
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * DAVID J. MCKAY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nvreg.h,v 1.6 2002/01/25 21:56:06 tsi Exp $ */
+
+#ifndef __NVREG_H_
+#define __NVREG_H_
+
+/* Little macro to construct bitmask for contiguous ranges of bits */
+#define BITMASK(t,b) (((unsigned)(1U << (((t)-(b)+1)))-1)  << (b))
+#define MASKEXPAND(mask) BITMASK(1?mask,0?mask)
+
+/* Macro to set specific bitfields (mask has to be a macro x:y) ! */
+#define SetBF(mask,value) ((value) << (0?mask))
+#define GetBF(var,mask) (((unsigned)((var) & MASKEXPAND(mask))) >> (0?mask) )
+
+#define MaskAndSetBF(var,mask,value) (var)=(((var)&(~MASKEXPAND(mask)) \
+                                             | SetBF(mask,value)))
+
+#define DEVICE_BASE(device) (0?NV##_##device)
+#define DEVICE_SIZE(device) ((1?NV##_##device) - DEVICE_BASE(device)+1)
+
+/* This is where we will have to have conditional compilation */
+#define DEVICE_ACCESS(device,reg) \
+  nv##device##Port[((NV_##device##_##reg)-DEVICE_BASE(device))/4]
+
+#define DEVICE_WRITE(device,reg,value) DEVICE_ACCESS(device,reg)=(value)
+#define DEVICE_READ(device,reg)        DEVICE_ACCESS(device,reg)
+#define DEVICE_PRINT(device,reg) \
+  ErrorF("NV_"#device"_"#reg"=#%08lx\n",DEVICE_ACCESS(device,reg))
+#define DEVICE_DEF(device,mask,value) \
+  SetBF(NV_##device##_##mask,NV_##device##_##mask##_##value)
+#define DEVICE_VALUE(device,mask,value) SetBF(NV_##device##_##mask,value)
+#define DEVICE_MASK(device,mask) MASKEXPAND(NV_##device##_##mask)
+
+#define PDAC_Write(reg,value)           DEVICE_WRITE(PDAC,reg,value)
+#define PDAC_Read(reg)                  DEVICE_READ(PDAC,reg)
+#define PDAC_Print(reg)                 DEVICE_PRINT(PDAC,reg)
+#define PDAC_Def(mask,value)            DEVICE_DEF(PDAC,mask,value)
+#define PDAC_Val(mask,value)            DEVICE_VALUE(PDAC,mask,value)
+#define PDAC_Mask(mask)                 DEVICE_MASK(PDAC,mask)
+
+#define PFB_Write(reg,value)            DEVICE_WRITE(PFB,reg,value)
+#define PFB_Read(reg)                   DEVICE_READ(PFB,reg)
+#define PFB_Print(reg)                  DEVICE_PRINT(PFB,reg)
+#define PFB_Def(mask,value)             DEVICE_DEF(PFB,mask,value)
+#define PFB_Val(mask,value)             DEVICE_VALUE(PFB,mask,value)
+#define PFB_Mask(mask)                  DEVICE_MASK(PFB,mask)
+
+#define PRM_Write(reg,value)            DEVICE_WRITE(PRM,reg,value)
+#define PRM_Read(reg)                   DEVICE_READ(PRM,reg)
+#define PRM_Print(reg)                  DEVICE_PRINT(PRM,reg)
+#define PRM_Def(mask,value)             DEVICE_DEF(PRM,mask,value)
+#define PRM_Val(mask,value)             DEVICE_VALUE(PRM,mask,value)
+#define PRM_Mask(mask)                  DEVICE_MASK(PRM,mask)
+
+#define PGRAPH_Write(reg,value)         DEVICE_WRITE(PGRAPH,reg,value)
+#define PGRAPH_Read(reg)                DEVICE_READ(PGRAPH,reg)
+#define PGRAPH_Print(reg)               DEVICE_PRINT(PGRAPH,reg)
+#define PGRAPH_Def(mask,value)          DEVICE_DEF(PGRAPH,mask,value)
+#define PGRAPH_Val(mask,value)          DEVICE_VALUE(PGRAPH,mask,value)
+#define PGRAPH_Mask(mask)               DEVICE_MASK(PGRAPH,mask)
+
+#define PDMA_Write(reg,value)           DEVICE_WRITE(PDMA,reg,value)
+#define PDMA_Read(reg)                  DEVICE_READ(PDMA,reg)
+#define PDMA_Print(reg)                 DEVICE_PRINT(PDMA,reg)
+#define PDMA_Def(mask,value)            DEVICE_DEF(PDMA,mask,value)
+#define PDMA_Val(mask,value)            DEVICE_VALUE(PDMA,mask,value)
+#define PDMA_Mask(mask)                 DEVICE_MASK(PDMA,mask)
+
+#define PTIMER_Write(reg,value)         DEVICE_WRITE(PTIMER,reg,value)
+#define PTIMER_Read(reg)                DEVICE_READ(PTIMER,reg)
+#define PTIMER_Print(reg)               DEVICE_PRINT(PTIMER,reg)
+#define PTIMER_Def(mask,value)          DEVICE_DEF(PTIMER,mask,value)
+#define PTIMER_Val(mask,value)          DEVICE_VALUE(PTIEMR,mask,value)
+#define PTIMER_Mask(mask)               DEVICE_MASK(PTIMER,mask)
+
+#define PEXTDEV_Write(reg,value)         DEVICE_WRITE(PEXTDEV,reg,value)
+#define PEXTDEV_Read(reg)                DEVICE_READ(PEXTDEV,reg)
+#define PEXTDEV_Print(reg)               DEVICE_PRINT(PEXTDEV,reg)
+#define PEXTDEV_Def(mask,value)          DEVICE_DEF(PEXTDEV,mask,value)
+#define PEXTDEV_Val(mask,value)          DEVICE_VALUE(PEXTDEV,mask,value)
+#define PEXTDEV_Mask(mask)               DEVICE_MASK(PEXTDEV,mask)
+
+#define PFIFO_Write(reg,value)          DEVICE_WRITE(PFIFO,reg,value)
+#define PFIFO_Read(reg)                 DEVICE_READ(PFIFO,reg)
+#define PFIFO_Print(reg)                DEVICE_PRINT(PFIFO,reg)
+#define PFIFO_Def(mask,value)           DEVICE_DEF(PFIFO,mask,value)
+#define PFIFO_Val(mask,value)           DEVICE_VALUE(PFIFO,mask,value)
+#define PFIFO_Mask(mask)                DEVICE_MASK(PFIFO,mask)
+
+#define PRAM_Write(reg,value)           DEVICE_WRITE(PRAM,reg,value)
+#define PRAM_Read(reg)                  DEVICE_READ(PRAM,reg)
+#define PRAM_Print(reg)                 DEVICE_PRINT(PRAM,reg)
+#define PRAM_Def(mask,value)            DEVICE_DEF(PRAM,mask,value)
+#define PRAM_Val(mask,value)            DEVICE_VALUE(PRAM,mask,value)
+#define PRAM_Mask(mask)                 DEVICE_MASK(PRAM,mask)
+
+#define PRAMFC_Write(reg,value)         DEVICE_WRITE(PRAMFC,reg,value)
+#define PRAMFC_Read(reg)                DEVICE_READ(PRAMFC,reg)
+#define PRAMFC_Print(reg)               DEVICE_PRINT(PRAMFC,reg)
+#define PRAMFC_Def(mask,value)          DEVICE_DEF(PRAMFC,mask,value)
+#define PRAMFC_Val(mask,value)          DEVICE_VALUE(PRAMFC,mask,value)
+#define PRAMFC_Mask(mask)               DEVICE_MASK(PRAMFC,mask)
+
+#define PMC_Write(reg,value)            DEVICE_WRITE(PMC,reg,value)
+#define PMC_Read(reg)                   DEVICE_READ(PMC,reg)
+#define PMC_Print(reg)                  DEVICE_PRINT(PMC,reg)
+#define PMC_Def(mask,value)             DEVICE_DEF(PMC,mask,value)
+#define PMC_Val(mask,value)             DEVICE_VALUE(PMC,mask,value)
+#define PMC_Mask(mask)                  DEVICE_MASK(PMC,mask)
+
+#define PMC_Write(reg,value)            DEVICE_WRITE(PMC,reg,value)
+#define PMC_Read(reg)                   DEVICE_READ(PMC,reg)
+#define PMC_Print(reg)                  DEVICE_PRINT(PMC,reg)
+#define PMC_Def(mask,value)             DEVICE_DEF(PMC,mask,value)
+#define PMC_Val(mask,value)             DEVICE_VALUE(PMC,mask,value)
+#define PMC_Mask(mask)                  DEVICE_MASK(PMC,mask)
+
+
+#define PBUS_Write(reg,value)         DEVICE_WRITE(PBUS,reg,value)
+#define PBUS_Read(reg)                DEVICE_READ(PBUS,reg)
+#define PBUS_Print(reg)               DEVICE_PRINT(PBUS,reg)
+#define PBUS_Def(mask,value)          DEVICE_DEF(PBUS,mask,value)
+#define PBUS_Val(mask,value)          DEVICE_VALUE(PBUS,mask,value)
+#define PBUS_Mask(mask)               DEVICE_MASK(PBUS,mask)
+
+
+#define PRAMDAC_Write(reg,value)         DEVICE_WRITE(PRAMDAC,reg,value)
+#define PRAMDAC_Read(reg)                DEVICE_READ(PRAMDAC,reg)
+#define PRAMDAC_Print(reg)               DEVICE_PRINT(PRAMDAC,reg)
+#define PRAMDAC_Def(mask,value)          DEVICE_DEF(PRAMDAC,mask,value)
+#define PRAMDAC_Val(mask,value)          DEVICE_VALUE(PRAMDAC,mask,value)
+#define PRAMDAC_Mask(mask)               DEVICE_MASK(PRAMDAC,mask)
+
+
+#define PDAC_ReadExt(reg) \
+  ((PDAC_Write(INDEX_LO,(NV_PDAC_EXT_##reg) & 0xff)),\
+  (PDAC_Write(INDEX_HI,((NV_PDAC_EXT_##reg) >> 8) & 0xff)),\
+  (PDAC_Read(INDEX_DATA)))
+
+#define PDAC_WriteExt(reg,value)\
+  ((PDAC_Write(INDEX_LO,(NV_PDAC_EXT_##reg) & 0xff)),\
+  (PDAC_Write(INDEX_HI,((NV_PDAC_EXT_##reg) >> 8) & 0xff)),\
+  (PDAC_Write(INDEX_DATA,(value))))
+
+#define PCRTC_Def(mask,value)          DEVICE_DEF(PCRTC,mask,value)
+#define PCRTC_Val(mask,value)          DEVICE_VALUE(PCRTC,mask,value)
+#define PCRTC_Mask(mask)               DEVICE_MASK(PCRTC,mask)
+
+
+/* These are the variables which actually point at the register blocks */
+extern volatile unsigned  *nvPDACPort;    /* Points to the DAC */
+extern volatile unsigned  *nvPFBPort;     /* Points to the Frame buffer */
+extern volatile unsigned  *nvPRMPort;     /* Points to real mode stuff */
+extern volatile unsigned  *nvPGRAPHPort;  /* Graphics unit */
+extern volatile unsigned  *nvPDMAPort;    /* DMA engine */
+extern volatile unsigned  *nvPFIFOPort;   /* FIFO registers */
+extern volatile unsigned  *nvPTIMERPort;  /* TIMER registers */
+extern volatile unsigned  *nvPEXTDEVPort; /* EXTDEV registers */
+extern volatile unsigned  *nvPRAMPort;    /* Priviliged RAM registers */
+extern volatile unsigned  *nvPRAMFCPort;  /* Priviliged RAM (Fifo) */
+extern volatile unsigned  *nvPRAMHTPort;  /* Priviliged RAM (hash) */
+extern volatile unsigned  *nvPMCPort;     /* Priviliged RAM (hash) */
+extern volatile unsigned  *nvCHAN0Port;   /* User channel 0 */
+extern volatile unsigned  *nvPRAMDACPort; /* Points to the RAMDAC       */
+extern volatile unsigned  *nvPRAMINPort;  /* Privileges instance memory */
+extern volatile unsigned  *nvPBUSPort;    /* Priviled Bus */
+extern volatile unsigned  *nvPNVMPort;    /* Priviled Bus */
+extern volatile unsigned  *dumb;          /* FrameBuffer - hack!!!! */
+
+
+typedef enum {NV1,NV3,NV4,NV10,NumNVChips} NVChipType;
+
+NVChipType GetChipType(void);
+
+
+#endif
+
+