lan_saa9730.c

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#define LAN_TXSTA_COLLISIONS_SHF        0
#define LAN_TXSTA_COLLISIONS_MSK        (MSK(4) << LAN_TXSTA_COLLISIONS_SHF)

/******** reg: RXCTL  ********/

/* field: ENGOOD */
#define LAN_RXCTL_ENGOOD_SHF            14
#define LAN_RXCTL_ENGOOD_MSK            (MSK(1) << LAN_RXCTL_ENGOOD_SHF)
#define LAN_RXCTL_ENGOOD_SET            LAN_RXCTL_ENGOOD_MSK

/* field: ENPARITY */
#define LAN_RXCTL_ENPARITY_SHF          13
#define LAN_RXCTL_ENPARITY_MSK          (MSK(1) << LAN_RXCTL_ENPARITY_SHF)
#define LAN_RXCTL_ENPARITY_SET          LAN_RXCTL_ENPARITY_MSK

/* field: ENLONGERR */
#define LAN_RXCTL_ENLONGERR_SHF         11
#define LAN_RXCTL_ENLONGERR_MSK         (MSK(1) << LAN_RXCTL_ENLONGERR_SHF)
#define LAN_RXCTL_ENLONGERR_SET         LAN_RXCTL_ENLONGERR_MSK

/* field: ENOVER */
#define LAN_RXCTL_ENOVER_SHF            10
#define LAN_RXCTL_ENOVER_MSK            (MSK(1) << LAN_RXCTL_ENOVER_SHF)
#define LAN_RXCTL_ENOVER_SET            LAN_RXCTL_ENOVER_MSK

/* field: ENCRCERR */
#define LAN_RXCTL_ENCRCERR_SHF          9
#define LAN_RXCTL_ENCRCERR_MSK          (MSK(1) << LAN_RXCTL_ENCRCERR_SHF)
#define LAN_RXCTL_ENCRCERR_SET          LAN_RXCTL_ENCRCERR_MSK

/* field: ENALIGN */
#define LAN_RXCTL_ENALIGN_SHF           8
#define LAN_RXCTL_ENALIGN_MSK           (MSK(1) << LAN_RXCTL_ENALIGN_SHF)
#define LAN_RXCTL_ENALIGN_SET           LAN_RXCTL_ENALIGN_MSK

/* field: IGNORECRC */
#define LAN_RXCTL_IGNORECRC_SHF         6
#define LAN_RXCTL_IGNORECRC_MSK         (MSK(1) << LAN_RXCTL_IGNORECRC_SHF)
#define LAN_RXCTL_IGNORECRC_SET         LAN_RXCTL_IGNORECRC_MSK

/* field: PASSCTL */
#define LAN_RXCTL_PASSCTL_SHF           5
#define LAN_RXCTL_PASSCTL_MSK           (MSK(1) << LAN_RXCTL_PASSCTL_SHF)
#define LAN_RXCTL_PASSCTL_SET           LAN_RXCTL_PASSCTL_MSK

/* field: STRIPCRC */
#define LAN_RXCTL_STRIPCRC_SHF          4
#define LAN_RXCTL_STRIPCRC_MSK          (MSK(1) << LAN_RXCTL_STRIPCRC_SHF)
#define LAN_RXCTL_STRIPCRC_SET          LAN_RXCTL_STRIPCRC_MSK

/* field: SHORTEN */
#define LAN_RXCTL_SHORTEN_SHF           3
#define LAN_RXCTL_SHORTEN_MSK           (MSK(1) << LAN_RXCTL_SHORTEN_SHF)
#define LAN_RXCTL_SHORTEN_SET           LAN_RXCTL_SHORTEN_MSK

/* field: LONGEN */
#define LAN_RXCTL_LONGEN_SHF            2
#define LAN_RXCTL_LONGEN_MSK            (MSK(1) << LAN_RXCTL_LONGEN_SHF)
#define LAN_RXCTL_LONGEN_SET            LAN_RXCTL_LONGEN_MSK

/* field: RXHALT */
#define LAN_RXCTL_RXHALT_SHF            1
#define LAN_RXCTL_RXHALT_MSK            (MSK(1) << LAN_RXCTL_RXHALT_SHF)
#define LAN_RXCTL_RXHALT_SET            LAN_RXCTL_RXHALT_MSK

/* field: RXEN */
#define LAN_RXCTL_RXEN_SHF              0
#define LAN_RXCTL_RXEN_MSK              (MSK(1) << LAN_RXCTL_RXEN_SHF)
#define LAN_RXCTL_RXEN_SET              LAN_RXCTL_RXEN_MSK

/******** reg: RXSTA  ********/

/* field: HALTED */
#define LAN_RXSTA_HALTED_SHF            15
#define LAN_RXSTA_HALTED_MSK            (MSK(1) << LAN_RXSTA_HALTED_SHF)
#define LAN_RXSTA_HALTED_SET            LAN_RXSTA_HALTED_MSK

/* field: GOOD */
#define LAN_RXSTA_GOOD_SHF              14
#define LAN_RXSTA_GOOD_MSK              (MSK(1) << LAN_RXSTA_GOOD_SHF)
#define LAN_RXSTA_GOOD_SET              LAN_RXSTA_GOOD_MSK

/* field: PARITY */
#define LAN_RXSTA_PARITY_SHF            13
#define LAN_RXSTA_PARITY_MSK            (MSK(1) << LAN_RXSTA_PARITY_SHF)
#define LAN_RXSTA_PARITY_SET            LAN_RXSTA_PARITY_MSK

/* field: LONGERR */
#define LAN_RXSTA_LONGERR_SHF           11
#define LAN_RXSTA_LONGERR_MSK           (MSK(1) << LAN_RXSTA_LONGERR_SHF)
#define LAN_RXSTA_LONGERR_SET           LAN_RXSTA_LONGERR_MSK

/* field: OVERFLOW */
#define LAN_RXSTA_OVERFLOW_SHF          10
#define LAN_RXSTA_OVERFLOW_MSK          (MSK(1) << LAN_RXSTA_OVERFLOW_SHF)
#define LAN_RXSTA_OVERFLOW_SET          LAN_RXSTA_OVERFLOW_MSK

/* field: CRCERR */
#define LAN_RXSTA_CRCERR_SHF            9
#define LAN_RXSTA_CRCERR_MSK            (MSK(1) << LAN_RXSTA_CRCERR_SHF)
#define LAN_RXSTA_CRCERR_SET            LAN_RXSTA_CRCERR_MSK

/* field: ALIGNERR */
#define LAN_RXSTA_ALIGNERR_SHF          8
#define LAN_RXSTA_ALIGNERR_MSK          (MSK(1) << LAN_RXSTA_ALIGNERR_SHF)
#define LAN_RXSTA_ALIGNERR_SET          LAN_RXSTA_ALIGNERR_MSK

/* field: WAS10MB */
#define LAN_RXSTA_WAS10MB_SHF           7
#define LAN_RXSTA_WAS10MB_MSK           (MSK(1) << LAN_RXSTA_WAS10MB_SHF)
#define LAN_RXSTA_WAS10MB_SET           LAN_RXSTA_WAS10MB_MSK

/* field: INTERRUPT */
#define LAN_RXSTA_INTERRUPT_SHF         6
#define LAN_RXSTA_INTERRUPT_MSK         (MSK(1) << LAN_RXSTA_INTERRUPT_SHF)
#define LAN_RXSTA_INTERRUPT_SET         LAN_RXSTA_INTERRUPT_MSK

/* field: CONTROLRCV */
#define LAN_RXSTA_CONTROLRCV_SHF        5
#define LAN_RXSTA_CONTROLRCV_MSK        (MSK(1) << LAN_RXSTA_CONTROLRCV_SHF)
#define LAN_RXSTA_CONTROLRCV_SET        LAN_RXSTA_CONTROLRCV_MSK

/******** reg: MDDATA ********/

/* field: DATA */
#define LAN_MDDATA_DATA_SHF             0
#define LAN_MDDATA_DATA_MSK             (MSK(16) << LAN_MDDATA_DATA_SHF)
#define LAN_MDDATA_DATA_SET             LAN_MDDATA_DATA_MSK

/******** reg: MDCTL  ********/

/* field: PRESUP */
#define LAN_MDCTL_PRESUP_SHF            12
#define LAN_MDCTL_PRESUP_MSK            (MSK(1) << LAN_MDCTL_PRESUP_SHF)
#define LAN_MDCTL_PRESUP_SET            LAN_MDCTL_PRESUP_MSK

/* field: BUSY */
#define LAN_MDCTL_BUSY_SHF              11
#define LAN_MDCTL_BUSY_MSK              (MSK(1) << LAN_MDCTL_BUSY_SHF)
#define LAN_MDCTL_BUSY_SET              LAN_MDCTL_BUSY_MSK

/* field: WR */
#define LAN_MDCTL_WR_SHF                10
#define LAN_MDCTL_WR_MSK                (MSK(1) << LAN_MDCTL_WR_SHF)
#define LAN_MDCTL_WR_SET                LAN_MDCTL_WR_MSK

/* field: PHY */
#define LAN_MDCTL_PHY_SHF               5
#define LAN_MDCTL_PHY_MSK               (MSK(5) << LAN_MDCTL_PHY_SHF)

/* field: ADDR */
#define LAN_MDCTL_ADDR_SHF              0
#define LAN_MDCTL_ADDR_MSK              (MSK(5) << LAN_MDCTL_ADDR_SHF)

/******** reg: CAMADR ********/

/* field: ADDRESS */
#define LAN_CAMADR_ADDRESS_SHF          0
#define LAN_CAMADR_ADDRESS_MSK          (MSK(9) << LAN_CAMADR_ADDRESS_SHF)

/******** reg: CAMDAT ********/

/* 32-bit transparent data register */


/******** reg: CAMENA ********/

/* field: ENABLE */
#define LAN_CAMENA_ENABLE_SHF          0
#define LAN_CAMENA_ENABLE_MSK          (MSK(22) << LAN_CAMENA_ENABLE_SHF)

/******** reg: DBGRXS ********/

/* field: RXPI */
#define LAN_DBGRXS_RXPI_SHF            16
#define LAN_DBGRXS_RXPI_MSK            (MSK(10) << LAN_DBGRXS_RXPI_SHF)
#define LAN_DBGRXS_RXPI_ERROR          1

/* field: RXDII */
#define LAN_DBGRXS_RXDII_SHF           0
#define LAN_DBGRXS_RXDII_MSK           (MSK(9) << LAN_DBGRXS_RXDII_SHF)
#define LAN_DBGRXS_RXDII_ERROR         8

/************************************************************************
 *  LAN SAA9730: Packet Control & Status Word, Relative Address
*************************************************************************/

#define TXPACKET_CONTROL_OFS    0x00000 /* TX-Packet, Control word      */
#define TXPACKET_STATUS_OFS     0x00000 /* TX-Packet, Status  word      */

#define RXPACKET_CONTROL_OFS    0x00000 /* RX-Packet, Control word      */
#define RXPACKET_STATUS_OFS     0x00000 /* RX-Packet, Status  word      */

/************************************************************************
 *  LAN SAA9730: Packet Control & Status Word, Field encodings
*************************************************************************/

/******** reg: TXPACKET_CONTROL ********/

/* field: FLAG */
#define TXPACKET_CONTROL_FLAG_SHF       30
#define TXPACKET_CONTROL_FLAG_MSK       (MSK(2) << TXPACKET_CONTROL_FLAG_SHF)
#define TX_EMPTY                        0
#define TX_READY                        2
#define TX_HWDONE                       3

/* field: COMPLETION */
#define TXPACKET_CONTROL_COMPLETION_SHF 29
#define TXPACKET_CONTROL_COMPLETION_MSK (MSK(1) << TXPACKET_CONTROL_COMPLETION_SHF)

/* field: NOCRC */
#define TXPACKET_CONTROL_NOCRC_SHF      28
#define TXPACKET_CONTROL_NOCRC_MSK      (MSK(1) << TXPACKET_CONTROL_NOCRC_SHF)

/* field: NOPAD */
#define TXPACKET_CONTROL_NOPAD_SHF      27
#define TXPACKET_CONTROL_NOPAD_MSK      (MSK(1) << TXPACKET_CONTROL_NOPAD_SHF)

/* field: SIZE */
#define TXPACKET_CONTROL_SIZE_SHF       0
#define TXPACKET_CONTROL_SIZE_MSK       (MSK(11) << TXPACKET_CONTROL_SIZE_SHF)


/******** reg: TXPACKET_STATUS  ********/

/* field: FLAG */
#define TXPACKET_STATUS_FLAG_SHF        30
#define TXPACKET_STATUS_FLAG_MSK        (MSK(2) << TXPACKET_STATUS_FLAG_SHF)

/* field: SQERR */
#define TXPACKET_STATUS_SQERR_SHF       27
#define TXPACKET_STATUS_SQERR_MSK       (MSK(1) << TXPACKET_STATUS_SQERR_SHF)

/* field: TXHALTED */
#define TXPACKET_STATUS_TXHALTED_SHF    26
#define TXPACKET_STATUS_TXHALTED_MSK    (MSK(1) << TXPACKET_STATUS_TXHALTED_SHF)

/* field: COMPLETION */
#define TXPACKET_STATUS_COMPLETION_SHF  25
#define TXPACKET_STATUS_COMPLETION_MSK  (MSK(1) << TXPACKET_STATUS_COMPLETION_SHF)

/* field: PARITYERR */
#define TXPACKET_STATUS_PARITYERR_SHF   24
#define TXPACKET_STATUS_PARITYERR_MSK   (MSK(1) << TXPACKET_STATUS_PARITYERR_SHF)

/* field: LATECOLLERR */
#define TXPACKET_STATUS_LATECOLLERR_SHF 23
#define TXPACKET_STATUS_LATECOLLERR_MSK (MSK(1) << TXPACKET_STATUS_LATECOLLERR_SHF)

/* field: WAS10MB */
#define TXPACKET_STATUS_WAS10MB_SHF     22
#define TXPACKET_STATUS_WAS10MB_MSK     (MSK(1) << TXPACKET_STATUS_WAS10MB_SHF)

/* field: LOSTCARRIER */
#define TXPACKET_STATUS_LOSTCARRIER_SHF 21
#define TXPACKET_STATUS_LOSTCARRIER_MSK (MSK(1) << TXPACKET_STATUS_LOSTCARRIER_SHF)

/* field: EXDEFER */
#define TXPACKET_STATUS_EXDEFER_SHF     20
#define TXPACKET_STATUS_EXDEFER_MSK     (MSK(1) << TXPACKET_STATUS_EXDEFER_SHF)

/* field: UNDERRUN */
#define TXPACKET_STATUS_UNDERRUN_SHF    19
#define TXPACKET_STATUS_UNDERRUN_MSK    (MSK(1) << TXPACKET_STATUS_UNDERRUN_SHF)

/* field: COLLISIONS */
#define TXPACKET_STATUS_COLLISIONS_SHF  11
#define TXPACKET_STATUS_COLLISIONS_MSK  (MSK(5) <<TXPACKET_STATUS_COLLISIONS_SHF)

/* field: SIZE */
#define TXPACKET_STATUS_SIZE_SHF        0
#define TXPACKET_STATUS_SIZE_MSK        (MSK(11) << TXPACKET_STATUS_SIZE_SHF)

#define TXPACKET_STATUS_ERROR_MSK       (TXPACKET_STATUS_EXDEFER_MSK     | \
                                         TXPACKET_STATUS_LATECOLLERR_MSK | \
                                         TXPACKET_STATUS_LOSTCARRIER_MSK | \
                                         TXPACKET_STATUS_UNDERRUN_MSK    | \
                                         TXPACKET_STATUS_SQERR_MSK       )

/******** reg: RXPACKET_CONTROL ********/


/******** reg: RXPACKET_STATUS  ********/

/* field: FLAG */
#define RXPACKET_STATUS_FLAG_SHF        30
#define RXPACKET_STATUS_FLAG_MSK        (MSK(2) << RXPACKET_STATUS_FLAG_SHF)
#define RX_NDIS                         0
#define RX_INVALID_STAT                 1
#define RX_READY                        2
#define RX_HWDONE                       3

/* field: GOOD */
#define RXPACKET_STATUS_GOOD_SHF        25
#define RXPACKET_STATUS_GOOD_MSK        (MSK(1) << RXPACKET_STATUS_GOOD_SHF)

/* field: PARITY */
#define RXPACKET_STATUS_PARITY_SHF      24
#define RXPACKET_STATUS_PARITY_MSK      (MSK(1) << RXPACKET_STATUS_PARITY_SHF)

/* field: LONGERR */
#define RXPACKET_STATUS_LONGERR_SHF     22
#define RXPACKET_STATUS_LONGERR_MSK     (MSK(1) << RXPACKET_STATUS_LONGERR_SHF)

/* field: OVERFLOW */
#define RXPACKET_STATUS_OVERFLOW_SHF    21
#define RXPACKET_STATUS_OVERFLOW_MSK    (MSK(1) << RXPACKET_STATUS_OVERFLOW_SHF)

/* field: CRCERR */
#define RXPACKET_STATUS_CRCERR_SHF      20
#define RXPACKET_STATUS_CRCERR_MSK      (MSK(1) << RXPACKET_STATUS_CRCERR_SHF)

/* field: ALIGNERR */
#define RXPACKET_STATUS_ALIGNERR_SHF    19
#define RXPACKET_STATUS_ALIGNERR_MSK    (MSK(1) << RXPACKET_STATUS_ALIGNERR_SHF)

/* field: WAS10MB */
#define RXPACKET_STATUS_WAS10MB_SHF     18
#define RXPACKET_STATUS_WAS10MB_MSK     (MSK(1) << RXPACKET_STATUS_WAS10MB_SHF)

/* field: SIZE */
#define RXPACKET_STATUS_SIZE_SHF        0
#define RXPACKET_STATUS_SIZE_MSK        (MSK(11) << RXPACKET_STATUS_SIZE_SHF)


/* Global driver states */
#define LAN_SAA9730_DRIVER_IS_STOPPED   0x42
#define LAN_SAA9730_DRIVER_IS_STARTED   0x44


/************************************************************************
 *      Public variables
 ************************************************************************/



/************************************************************************
 *      Static variables
 ************************************************************************/
static UINT32 poll_count = 0 ;
static char msg[160] ;

/* Global driver state */
static UINT32 LAN_SAA9730_state = LAN_SAA9730_DRIVER_IS_STOPPED ;

/* MAC broadcast address */
static t_mac_addr mac_broadcast_adr = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } ;

/* User registered receive handler */
static UINT32 (*usr_receive)( UINT32 length, UINT8 *data ) = NULL ;

/* Device context per minor device for this driver */
static t_LAN_SAA9730_device   minor_device[LAN_MINOR_SAA9730_DEVICES] ;

/* Dynamic allocated memory */
static UINT32 lan_dma_buffers ;

static char* opmode_info[]= 
{
  /* OPMODE_AUTONEGOTIATE       */ "still in auto-negotiate",
  /* OPMODE_10BASET_HALFDUPLEX  */ "10 Mbit/s, half-duplex",
  /* OPMODE_100BASEX_HALFDUPLEX */ "100 Mbit/s, half-duplex",
  /* OPMODE_REPEATER_MODE       */ "repeater mode",
  /* OPMODE_UNDEFINED           */ "undefined",
  /* OPMODE_10BASET_FULLDUPLEX  */ "10 Mbit/s, full-duplex",
  /* OPMODE_100BASEX_FULLDUPLEX */ "100 Mbit/s, full-duplex",
  /* OPMODE_ISOLATE             */ "PHY/MII isolate, auto-negotiate disabled"
} ;

static bool opmode_is_fullduplex[]= 
{
  /* OPMODE_AUTONEGOTIATE       */ FALSE,
  /* OPMODE_10BASET_HALFDUPLEX  */ FALSE,
  /* OPMODE_100BASEX_HALFDUPLEX */ FALSE,
  /* OPMODE_REPEATER_MODE       */ FALSE,
  /* OPMODE_UNDEFINED           */ FALSE,
  /* OPMODE_10BASET_FULLDUPLEX  */ TRUE,
  /* OPMODE_100BASEX_FULLDUPLEX */ TRUE,
  /* OPMODE_ISOLATE             */ FALSE
} ;

/************************************************************************
 *      Static function prototypes, local helper functions
 ************************************************************************/

/************************************************************************
 *
 *                         LAN_SAA9730_enable_buffer
 *  Description :
 *  -------------
 * 
 *  Enable next receive buffer.
 * 
 *
 *  Parameters :