diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/drivers/net/eepro100.h')
| -rw-r--r-- | contrib/syslinux-4.02/gpxe/src/drivers/net/eepro100.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/drivers/net/eepro100.h b/contrib/syslinux-4.02/gpxe/src/drivers/net/eepro100.h new file mode 100644 index 0000000..17a22df --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/drivers/net/eepro100.h @@ -0,0 +1,206 @@ + +#ifndef __EEPRO100_H_ +#define __EEPRO100_H_ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#define CONGENB 0 /* Enable congestion control in the DP83840. */ +#define TX_FIFO 8 /* Tx FIFO threshold in 4 byte units, 0-15 */ +#define RX_FIFO 8 /* Rx FIFO threshold, default 32 bytes. */ +#define TX_DMA_COUNT 0 /* Tx DMA burst length, 0-127, default 0. */ +#define RX_DMA_COUNT 0 /* Rx DMA length, 0 means no preemption. */ +#define CU_CMD_TIMEOUT 1000 /* CU command accept timeout in microseconds */ +#define LINK_CHECK_PERIOD 1000 /* # of poll() calls between link checks */ + +#define RFD_PACKET_LEN 1518 +#define RFD_IOB_LEN 1536 +#define RFD_HEADER_LEN 16 +#define CB_ALIGN 2 /* Alignment of command blocks */ + +#define RFD_COUNT 4 +#define TCB_COUNT 4 +#define RX_RING_BYTES ( RFD_COUNT * sizeof ( struct ifec_rfd ) ) +#define TX_RING_BYTES ( TCB_COUNT * sizeof ( struct ifec_tcb ) ) + +/* some EEPROM addresses */ +#define EEPROM_ADDR_MAC_0 0 +#define EEPROM_ADDR_MDIO_REGISTER 6 + +/* Control / Status Register byte offsets - SDM Table 11 */ +enum CSROffsets { + SCBStatus=0, SCBCmd=2, SCBPointer = 4, + CSRPort=8, CSRFlash=12, CSREeprom = 14, + CSRCtrlMDI=16, CSREarlyRx=20 +}; + +/* System Control Block Command Word - SDM Table 12 */ +enum SCBCmdBits { + /* SCB Interrupt Masks - SDM Table 14 */ + SCBMaskCmdDone=0x8000, SCBMaskRxDone=0x4000, SCBMaskCmdIdle=0x2000, + SCBMaskRxSuspend=0x1000, SCBMaskEarlyRx=0x0800, SCBMaskFlowCtl=0x0400, + SCBTriggerIntr=0x0200, SCBMaskAll=0x0100, + /* SCB Control Commands - SDM Table 14-16 */ + CUStart=0x0010, CUResume=0x0020, CUStatsAddr=0x0040, + CUShowStats=0x0050, CUCmdBase=0x0060, CUDumpStats=0x0070, + RUStart=0x0001, RUResume=0x0002, RUAbort=0x0004, + RUAddrLoad=0x0006, RUResumeNoResources=0x0007 +}; + +enum SCBPortCmds { + PortReset=0, PortSelfTest=1, PortPartialReset=2, PortDump=3 +}; + +/* Action Commands - SDM Table 14,37 */ +enum ActionCommands { + CmdNOp = 0, CmdIASetup = 1, CmdConfigure = 2, + CmdMulticastList = 3, CmdTx = 4, CmdTDR = 5, + CmdDump = 6, CmdDiagnose = 7, + /* And some extra flags: */ + CmdEndOfList = 0x8000, + CmdSuspend = 0x4000, CmdIntr = 0x2000, CmdTxFlex = 0x0008 +}; + +enum TCBBits { + TCB_C=0x8000, TCB_OK=0x2000, TCB_U=0x1000 +}; + +enum RFDBits { + /* Status Word Bits */ + RFDRxCol=0x0001, RFDIAMatch=0x0002, RFDNoMatch=0x0004, + RFDReserved3=0x0008, RFDRxErr=0x0010, RFDEthType=0x0020, + RFDReserved6=0x0040, RFDShort=0x0080, RFDDMAOverrun=0x0100, + RFDNoBufs=0x0200, RFDCRCAlign=0x0400, RFDCRCError=0x0800, + RFDReserved12=0x1000, RFD_OK=0x2000, RFDComplete=0x8000, + /* Command Word Bits */ + //RFD_SF=0x0008, RFDSuspend=0x4000, RFDEndOfList=0x8000, + /* Other */ + RFDMaskCount=0x3FFF +}; + +enum phy_chips { + NonSuchPhy=0, I82553AB, I82553C, + I82503, DP83840, S80C240, + S80C24, PhyUndefined, DP83840A=10 +}; + +/* Serial EEPROM section. + A "bit" grungy, but we work our way through bit-by-bit :->. */ +/* EEPROM_Ctrl bits. */ +#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ +#define EE_CS 0x02 /* EEPROM chip select. */ +#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ +#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ +#define EE_ENB ( 0x4800 | EE_CS ) + +/* Elements of the dump_statistics block. This block must be lword aligned. */ +struct ifec_stats { + u32 + tx_good_frames, tx_coll16_errs, tx_late_colls, + tx_underruns, tx_lost_carrier, tx_deferred, + tx_one_colls, tx_multi_colls, tx_total_colls, + rx_good_frames, rx_crc_errs, rx_align_errs, + rx_resource_errs, rx_overrun_errs, rx_colls_errs, + rx_runt_errs, done_marker; +}; + +struct ifec_tcb { /* A Transmit Command Block & TBD. Must be */ + volatile s16 status; /* word (even address) aligned */ + u16 command; + u32 link; /* PHYSICAL next ifec_tcb, doesn't change */ + u32 tbda_addr; /* TBD Array, points to TBD below */ + s32 count; /* # of TBD, Tx start thresh., etc. */ + /* The following constitutes a Transmit Buffer Descriptor (TBD). + * TBDs must be aligned on an even address (word-aligned). */ + u32 tbd_addr0; /* PHYSICAL ptr to Tx data */ + s32 tbd_size0; /* Length of Tx data */ + /* Driver-specific data; not part of TCB format. */ + struct io_buffer *iob; /* Exists from tx() to completion poll() */ + struct ifec_tcb *next; /* VIRTUAL next ifec_tcb, doesn't change */ +}; + +struct ifec_rfd { /* A Receive Frame Descriptor. Must be aligned */ + volatile s16 status; /* on a physical word (even address) */ + s16 command; + u32 link; /* PHYSICAL next ifec_rfd, doesn't change */ + u32 rx_buf_addr; /* Unused. Flex rx mode is not documented */ + u16 count; /* and may be impossible */ + u16 size; + char packet[RFD_PACKET_LEN]; +}; + +struct ifec_ias { /* Individual Address Setup command block. */ + volatile s16 status; /* Must be word (even address) aligned. */ + u16 command; + u32 link; /* PHYSICAL next command block to process */ + u8 ia[6]; +}; + +struct ifec_cfg { /* The configure command format. */ + volatile s16 status; + u16 command; + u32 link; /* PHYSICAL next command block to process */ + u8 byte[22]; /* 22 configuration bytes */ +}; + +struct ifec_private { + unsigned long ioaddr; + struct ifec_stats stats; + unsigned short mdio_register; + + struct ifec_tcb *tcbs; + struct ifec_rfd *rfds[RFD_COUNT]; + struct ifec_tcb *tcb_head, *tcb_tail; + struct io_buffer *tx_iobs[TCB_COUNT]; + struct io_buffer *rx_iobs[RFD_COUNT]; + int cur_rx; + int tx_curr; + int tx_tail; + int tx_cnt; + /* + * The configured flag indicates if a Config command was last issued. + * The following attempt to issue a command (in ifec_tx_wake) will + * use a START rather than RESUME SCB command. It seems the card won't + * RESUME after a configure command. + */ + int configured; + struct spi_bit_basher spi; + struct spi_device eeprom; + +}; + +/**************************** Function prototypes ****************************/ + +/* PCI device API prototypes */ +static int ifec_pci_probe ( struct pci_device*, const struct pci_device_id*); +static void ifec_pci_remove ( struct pci_device *pci ); + +/* Network device API prototypes */ +static void ifec_net_close ( struct net_device* ); +static void ifec_net_irq ( struct net_device*, int enable ); +static int ifec_net_open ( struct net_device* ); +static void ifec_net_poll ( struct net_device* ); +static int ifec_net_transmit ( struct net_device*, struct io_buffer *iobuf ); + +/* Local function prototypes */ +static void ifec_init_eeprom ( struct net_device * ); +static int ifec_link_check ( struct net_device * ); +static void ifec_link_update ( struct net_device * ); +static int ifec_mdio_read ( struct net_device *, int phy, int location ); +static void ifec_mdio_setup ( struct net_device *, int options ); +static int ifec_mdio_write ( struct net_device *, int phy, int loc, int val); +static void ifec_reset ( struct net_device * ); +static void ifec_free ( struct net_device * ); +static void ifec_rfd_init ( struct ifec_rfd *rfd, s16 command, u32 link ); +static void ifec_rx_process ( struct net_device * ); +static void ifec_reprime_ru ( struct net_device * ); +static void ifec_check_ru_status ( struct net_device *, unsigned short ); +static int ifec_get_rx_desc ( struct net_device *, int ,int ,int ); +static void ifec_refill_rx_ring ( struct net_device * ); +static int ifec_rx_setup ( struct net_device * ); +static int ifec_scb_cmd ( struct net_device *, u32 ptr, u8 cmd ); +static int ifec_scb_cmd_wait ( struct net_device * ); +static void ifec_tx_process ( struct net_device * ); +static int ifec_tx_setup ( struct net_device * ); +static void ifec_tx_wake ( struct net_device * ); + +#endif |