URL
https://opencores.org/ocsvn/or1k/or1k/trunk
Subversion Repositories or1k
[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [net/] [eth82586.h] - Rev 1772
Go to most recent revision | Compare with Previous | Blame | View Log
/* * eth82586.h: Intel EtherExpress defines * * Written 1995 by John Sullivan * See eexpress.c for further details * documentation and usage to do. */ /* * EtherExpress card register addresses * as offsets from the base IO region (dev->base_addr) */ #define DATAPORT 0x0000 #define WRITE_PTR 0x0002 #define READ_PTR 0x0004 #define SIGNAL_CA 0x0006 #define SET_IRQ 0x0007 #define SM_PTR 0x0008 #define MEM_Ctrl 0x000b #define MEM_Page_Ctrl 0x000c #define Config 0x000d #define EEPROM_Ctrl 0x000e #define ID_PORT 0x000f /* * offset to shadowed memory, 0 <= x <= 31. We don't use this yet, * but may in the future. Is shadow memory access any faster than * dataport access? */ #define SM_ADDR(x) (0x4000+((x&0x10)<<10)+(x&0xf)) /* Always mirrors eexp-memory at 0x0008-0x000f */ #define SCB_STATUS 0xc008 #define SCB_CMD 0xc00a #define SCB_CBL 0xc00c #define SCB_RFA 0xc00e /* * card register defines */ /* SET_IRQ */ #define SIRQ_en 0x08 #define SIRQ_dis 0x00 /* Config */ #define set_loopback outb(inb(ioaddr+Config)|0x02,ioaddr+Config) #define clear_loopback outb(inb(ioaddr+Config)&0xfd,ioaddr+Config) /* EEPROM_Ctrl */ #define EC_Clk 0x01 #define EC_CS 0x02 #define EC_Wr 0x04 #define EC_Rd 0x08 #define ASIC_RST 0x40 #define i586_RST 0x80 #define eeprom_delay() { int _i = 40; while (--_i>0) { __SLOW_DOWN_IO; }} /* * i82586 Memory Configuration */ /* (System Configuration Pointer) System start up block, read after 586_RST */ #define SCP_START 0xfff6 /* Intermediate System Configuration Pointer */ #define ISCP_START 0x0000 /* System Command Block */ #define SCB_START 0x0008 /* * Start of buffer region. If we have 64k memory, eexp_hw_probe() may raise * NUM_TX_BUFS. RX_BUF_END is set to the end of memory, and all space between * the transmit buffer region and end of memory used for as many receive buffers * as we can fit. See eexp_hw_[(rx)(tx)]init(). */ #define TX_BUF_START 0x0100 #define TX_BUF_SIZE ((24+ETH_FRAME_LEN+31)&~0x1f) #define RX_BUF_SIZE ((32+ETH_FRAME_LEN+31)&~0x1f) /* * SCB defines */ /* these functions take the SCB status word and test the relevant status bit */ #define SCB_complete(s) ((s&0x8000)!=0) #define SCB_rxdframe(s) ((s&0x4000)!=0) #define SCB_CUdead(s) ((s&0x2000)!=0) #define SCB_RUdead(s) ((s&0x1000)!=0) #define SCB_ack(s) (s & 0xf000) /* Command unit status: 0=idle, 1=suspended, 2=active */ #define SCB_CUstat(s) ((s&0x0300)>>8) /* Receive unit status: 0=idle, 1=suspended, 2=out of resources, 4=ready */ #define SCB_RUstat(s) ((s&0x0070)>>4) /* SCB commands */ #define SCB_CUnop 0x0000 #define SCB_CUstart 0x0100 #define SCB_CUresume 0x0200 #define SCB_CUsuspend 0x0300 #define SCB_CUabort 0x0400 /* ? */ #define SCB_resetchip 0x0080 #define SCB_RUnop 0x0000 #define SCB_RUstart 0x0010 #define SCB_RUresume 0x0020 #define SCB_RUsuspend 0x0030 #define SCB_RUabort 0x0040 /* * Command block defines */ #define Stat_Done(s) ((s&0x8000)!=0) #define Stat_Busy(s) ((s&0x4000)!=0) #define Stat_OK(s) ((s&0x2000)!=0) #define Stat_Abort(s) ((s&0x1000)!=0) #define Stat_STFail ((s&0x0800)!=0) #define Stat_TNoCar(s) ((s&0x0400)!=0) #define Stat_TNoCTS(s) ((s&0x0200)!=0) #define Stat_TNoDMA(s) ((s&0x0100)!=0) #define Stat_TDefer(s) ((s&0x0080)!=0) #define Stat_TColl(s) ((s&0x0040)!=0) #define Stat_TXColl(s) ((s&0x0020)!=0) #define Stat_NoColl(s) (s&0x000f) /* Cmd_END will end AFTER the command if this is the first * command block after an SCB_CUstart, but BEFORE the command * for all subsequent commands. Best strategy is to place * Cmd_INT on the last command in the sequence, followed by a * dummy Cmd_Nop with Cmd_END after this. */ #define Cmd_END 0x8000 #define Cmd_SUS 0x4000 #define Cmd_INT 0x2000 #define Cmd_Nop 0x0000 #define Cmd_SetAddr 0x0001 #define Cmd_Config 0x0002 #define Cmd_MCast 0x0003 #define Cmd_Xmit 0x0004 #define Cmd_TDR 0x0005 #define Cmd_Dump 0x0006 #define Cmd_Diag 0x0007 /* * Frame Descriptor (Receive block) defines */ #define FD_Done(s) ((s&0x8000)!=0) #define FD_Busy(s) ((s&0x4000)!=0) #define FD_OK(s) ((s&0x2000)!=0) #define FD_CRC(s) ((s&0x0800)!=0) #define FD_Align(s) ((s&0x0400)!=0) #define FD_Resrc(s) ((s&0x0200)!=0) #define FD_DMA(s) ((s&0x0100)!=0) #define FD_Short(s) ((s&0x0080)!=0) #define FD_NoEOF(s) ((s&0x0040)!=0)
Go to most recent revision | Compare with Previous | Blame | View Log