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- /* PCI.h - PCI functions header file */
- /* Copyright - Galileo technology. */
- #ifndef __INCpcih
- #define __INCpcih
- /* includes */
- #include "core.h"
- #include "memory.h"
- /* According to PCI REV 2.1 MAX agents allowed on the bus are -21- */
- #define PCI_MAX_DEVICES 22
- /* Macros */
- #define SELF 32
- /* Defines for the access regions. */
- #define PREFETCH_ENABLE BIT12
- #define PREFETCH_DISABLE NO_BIT
- #define DELAYED_READ_ENABLE BIT13
- /* #define CACHING_ENABLE BIT14 */
- /* aggressive prefetch: PCI slave prefetch two burst in advance*/
- #define AGGRESSIVE_PREFETCH BIT16
- /* read line aggresive prefetch: PCI slave prefetch two burst in advance*/
- #define READ_LINE_AGGRESSIVE_PREFETCH BIT17
- /* read multiple aggresive prefetch: PCI slave prefetch two burst in advance*/
- #define READ_MULTI_AGGRESSIVE_PREFETCH BIT18
- #define MAX_BURST_4 NO_BIT
- #define MAX_BURST_8 BIT20 /* Bits[21:20] = 01 */
- #define MAX_BURST_16 BIT21 /* Bits[21:20] = 10 */
- #define PCI_BYTE_SWAP NO_BIT /* Bits[25:24] = 00 */
- #define PCI_NO_SWAP BIT24 /* Bits[25:24] = 01 */
- #define PCI_BYTE_AND_WORD_SWAP BIT25 /* Bits[25:24] = 10 */
- #define PCI_WORD_SWAP (BIT24 | BIT25) /* Bits[25:24] = 11 */
- #define PCI_ACCESS_PROTECT BIT28
- #define PCI_WRITE_PROTECT BIT29
- /* typedefs */
- typedef enum __pciAccessRegions{REGION0,REGION1,REGION2,REGION3,REGION4,REGION5,
- REGION6,REGION7} PCI_ACCESS_REGIONS;
- typedef enum __pciAgentPrio{LOW_AGENT_PRIO,HI_AGENT_PRIO} PCI_AGENT_PRIO;
- typedef enum __pciAgentPark{PARK_ON_AGENT,DONT_PARK_ON_AGENT} PCI_AGENT_PARK;
- typedef enum __pciSnoopType{PCI_NO_SNOOP,PCI_SNOOP_WT,PCI_SNOOP_WB}
- PCI_SNOOP_TYPE;
- typedef enum __pciSnoopRegion{PCI_SNOOP_REGION0,PCI_SNOOP_REGION1,
- PCI_SNOOP_REGION2,PCI_SNOOP_REGION3}
- PCI_SNOOP_REGION;
- typedef enum __memPciHost{PCI_HOST0,PCI_HOST1} PCI_HOST;
- typedef enum __memPciRegion{PCI_REGION0,PCI_REGION1,
- PCI_REGION2,PCI_REGION3,
- PCI_IO}
- PCI_REGION;
- /* read/write configuration registers on local PCI bus. */
- void pciWriteConfigReg(PCI_HOST host, unsigned int regOffset,
- unsigned int pciDevNum, unsigned int data);
- unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,
- unsigned int pciDevNum);
- /* read/write configuration registers on another PCI bus. */
- void pciOverBridgeWriteConfigReg(PCI_HOST host,
- unsigned int regOffset,
- unsigned int pciDevNum,
- unsigned int busNum,unsigned int data);
- unsigned int pciOverBridgeReadConfigReg(PCI_HOST host,
- unsigned int regOffset,
- unsigned int pciDevNum,
- unsigned int busNum);
- /* Master`s memory space */
- bool pciMapSpace(PCI_HOST host, PCI_REGION region,
- unsigned int remapBase,
- unsigned int deviceBase,
- unsigned int deviceLength);
- unsigned int pciGetSpaceBase(PCI_HOST host, PCI_REGION region);
- unsigned int pciGetSpaceSize(PCI_HOST host, PCI_REGION region);
- /* Slave`s memory space */
- void pciMapMemoryBank(PCI_HOST host, MEMORY_BANK bank,
- unsigned int pci0Dram0Base, unsigned int pci0Dram0Size);
- /* PCI region options */
- bool pciSetRegionFeatures(PCI_HOST host, PCI_ACCESS_REGIONS region,
- unsigned int features, unsigned int baseAddress,
- unsigned int regionLength);
- void pciDisableAccessRegion(PCI_HOST host, PCI_ACCESS_REGIONS region);
- /* PCI arbiter */
- bool pciArbiterEnable(PCI_HOST host);
- bool pciArbiterDisable(PCI_HOST host);
- bool pciParkingDisable(PCI_HOST host, PCI_AGENT_PARK internalAgent,
- PCI_AGENT_PARK externalAgent0,
- PCI_AGENT_PARK externalAgent1,
- PCI_AGENT_PARK externalAgent2,
- PCI_AGENT_PARK externalAgent3,
- PCI_AGENT_PARK externalAgent4,
- PCI_AGENT_PARK externalAgent5);
- bool pciSetRegionSnoopMode(PCI_HOST host, PCI_SNOOP_REGION region,
- PCI_SNOOP_TYPE snoopType,
- unsigned int baseAddress,
- unsigned int regionLength);
- #endif /* __INCpcih */
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