drivers/video/fbdev/riva/nvreg.h

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/riva/nvreg.h

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/riva/nvreg.h
Extension
.h
Size
9258 bytes
Lines
189
Domain
Driver Families
Bucket
drivers/video
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#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) \
  nvCONTROL[(NV_##device##_##reg)/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)

Annotation

Implementation Notes