mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-15 18:09:15 +08:00
129 lines
4.9 KiB
C
129 lines
4.9 KiB
C
/*
|
|
* Handling of Ethernet PHY's
|
|
* PHY's communicate with an EMAC either through
|
|
* a Media-Independent Interface (MII), or a Reduced Media-Independent Interface (RMII).
|
|
* The EMAC can poll for PHY ports on 32 different addresses. Each of the PHY ports
|
|
* shall be treated independently.
|
|
*
|
|
*/
|
|
|
|
#ifndef PHYHANDLING_H
|
|
|
|
#define PHYHANDLING_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
#ifndef ipconfigPHY_MAX_PORTS
|
|
/* There can be at most 32 PHY ports, but in most cases there are 4 or less. */
|
|
#define ipconfigPHY_MAX_PORTS 4
|
|
#endif
|
|
|
|
/* A generic user-provided function that reads from the PHY-port at 'xAddress'( 0-based ). A 16-bit value shall be stored in
|
|
* '*pulValue'. xRegister is the register number ( 0 .. 31 ). In fact all PHY registers are 16-bit.
|
|
* Return non-zero in case the action failed. */
|
|
typedef BaseType_t ( * xApplicationPhyReadHook_t )( BaseType_t xAddress,
|
|
BaseType_t xRegister,
|
|
uint32_t * pulValue );
|
|
|
|
/* A generic user-provided function that writes 'ulValue' to the
|
|
* PHY-port at 'xAddress' ( 0-based ). xRegister is the register number ( 0 .. 31 ).
|
|
* Return non-zero in case the action failed. */
|
|
typedef BaseType_t ( * xApplicationPhyWriteHook_t )( BaseType_t xAddress,
|
|
BaseType_t xRegister,
|
|
uint32_t ulValue );
|
|
|
|
typedef struct xPhyProperties
|
|
{
|
|
uint8_t ucSpeed;
|
|
uint8_t ucMDI_X; /* MDI-X : Medium Dependent Interface - Crossover */
|
|
uint8_t ucDuplex;
|
|
uint8_t ucSpare;
|
|
} PhyProperties_t;
|
|
|
|
typedef struct xEthernetPhy
|
|
{
|
|
xApplicationPhyReadHook_t fnPhyRead;
|
|
xApplicationPhyWriteHook_t fnPhyWrite;
|
|
uint32_t ulPhyIDs[ ipconfigPHY_MAX_PORTS ];
|
|
uint8_t ucPhyIndexes[ ipconfigPHY_MAX_PORTS ];
|
|
TimeOut_t xLinkStatusTimer;
|
|
TickType_t xLinkStatusRemaining;
|
|
BaseType_t xPortCount;
|
|
uint32_t ulBCRValue;
|
|
uint32_t ulACRValue;
|
|
uint32_t ulLinkStatusMask;
|
|
PhyProperties_t xPhyPreferences;
|
|
PhyProperties_t xPhyProperties;
|
|
} EthernetPhy_t;
|
|
|
|
/* Some defines used internally here to indicate preferences about speed, MDIX
|
|
* (wired direct or crossed), and duplex (half or full). */
|
|
|
|
/* Values for PhyProperties_t::ucSpeed : */
|
|
#define PHY_SPEED_10 1
|
|
#define PHY_SPEED_100 2
|
|
#define PHY_SPEED_AUTO 3
|
|
|
|
/* Values for PhyProperties_t::ucMDI_X : */
|
|
#define PHY_MDIX_DIRECT 1
|
|
#define PHY_MDIX_CROSSED 2
|
|
#define PHY_MDIX_AUTO 3
|
|
|
|
/* Values for PhyProperties_t::ucDuplex : */
|
|
#define PHY_DUPLEX_HALF 1
|
|
#define PHY_DUPLEX_FULL 2
|
|
#define PHY_DUPLEX_AUTO 3
|
|
|
|
/* ID's of supported PHY's : */
|
|
#define PHY_ID_LAN8742A 0x0007c130
|
|
#define PHY_ID_LAN8720 0x0007c0f0
|
|
|
|
#define PHY_ID_KSZ8041 0x000010A1
|
|
#define PHY_ID_KSZ8051 0x000010A1
|
|
#define PHY_ID_KSZ8081 0x000010A1
|
|
|
|
#define PHY_ID_KSZ8863 0x00221430
|
|
#define PHY_ID_KSZ8081MNXIA 0x00221560
|
|
|
|
#define PHY_ID_DP83848I 0x20005C90
|
|
|
|
|
|
/* Initialise the struct and assign a PHY-read and -write function. */
|
|
void vPhyInitialise( EthernetPhy_t * pxPhyObject,
|
|
xApplicationPhyReadHook_t fnPhyRead,
|
|
xApplicationPhyWriteHook_t fnPhyWrite );
|
|
|
|
/* Discover all PHY's connected by polling 32 indexes ( zero-based ) */
|
|
BaseType_t xPhyDiscover( EthernetPhy_t * pxPhyObject );
|
|
|
|
/* Send a reset command to the connected PHY ports and send configuration. */
|
|
BaseType_t xPhyConfigure( EthernetPhy_t * pxPhyObject,
|
|
const PhyProperties_t * pxPhyProperties );
|
|
|
|
/* Give a command to start auto negotiation on a set of PHY port's. */
|
|
BaseType_t xPhyStartAutoNegotiation( EthernetPhy_t * pxPhyObject,
|
|
uint32_t ulPhyMask );
|
|
|
|
/* Do not use auto negotiation but use predefined values from 'pxPhyObject->xPhyPreferences'. */
|
|
BaseType_t xPhyFixedValue( EthernetPhy_t * pxPhyObject,
|
|
uint32_t ulPhyMask );
|
|
|
|
/* Check the current Link Status.
|
|
* 'xHadReception' : make this true if a packet has been received since the
|
|
* last call to this function. */
|
|
BaseType_t xPhyCheckLinkStatus( EthernetPhy_t * pxPhyObject,
|
|
BaseType_t xHadReception );
|
|
|
|
/* Get the bitmask of a given 'EthernetPhy_t'. */
|
|
#define xPhyGetMask( pxPhyObject ) \
|
|
( ( ( ( uint32_t ) 1u ) << ( pxPhyObject )->xPortCount ) - 1u )
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* ifndef PHYHANDLING_H */
|