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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [atm/] [midway.h] - Rev 1275
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/* drivers/atm/midway.h - Efficient Networks Midway (SAR) description */ /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */ #ifndef DRIVERS_ATM_MIDWAY_H #define DRIVERS_ATM_MIDWAY_H #define NR_VCI 1024 /* number of VCIs */ #define NR_VCI_LD 10 /* log2(NR_VCI) */ #define NR_DMA_RX 512 /* RX DMA queue entries */ #define NR_DMA_TX 512 /* TX DMA queue entries */ #define NR_SERVICE NR_VCI /* service list size */ #define NR_CHAN 8 /* number of TX channels */ #define TS_CLOCK 25000000 /* traffic shaper clock (cell/sec) */ #define MAP_MAX_SIZE 0x00400000 /* memory window for max config */ #define EPROM_SIZE 0x00010000 #define MEM_VALID 0xffc00000 /* mask base address with this */ #define PHY_BASE 0x00020000 /* offset of PHY register are */ #define REG_BASE 0x00040000 /* offset of Midway register area */ #define RAM_BASE 0x00200000 /* offset of RAM area */ #define RAM_INCREMENT 0x00020000 /* probe for RAM every 128kB */ #define MID_VCI_BASE RAM_BASE #define MID_DMA_RX_BASE (MID_VCI_BASE+NR_VCI*16) #define MID_DMA_TX_BASE (MID_DMA_RX_BASE+NR_DMA_RX*8) #define MID_SERVICE_BASE (MID_DMA_TX_BASE+NR_DMA_TX*8) #define MID_FREE_BASE (MID_SERVICE_BASE+NR_SERVICE*4) #define MAC_LEN 6 /* atm.h */ #define MID_MIN_BUF_SIZE (1024) /* 1 kB is minimum */ #define MID_MAX_BUF_SIZE (128*1024) /* 128 kB is maximum */ #define RX_DESCR_SIZE 1 /* RX PDU descr is 1 longword */ #define TX_DESCR_SIZE 2 /* TX PDU descr is 2 longwords */ #define AAL5_TRAILER (ATM_AAL5_TRAILER/4) /* AAL5 trailer is 2 longwords */ #define TX_GAP 8 /* TX buffer gap (words) */ /* * Midway Reset/ID * * All values read-only. Writing to this register resets Midway chip. */ #define MID_RES_ID_MCON 0x00 /* Midway Reset/ID */ #define MID_ID 0xf0000000 /* Midway version */ #define MID_SHIFT 24 #define MID_MOTHER_ID 0x00000700 /* mother board id */ #define MID_MOTHER_SHIFT 8 #define MID_CON_TI 0x00000080 /* 0: normal ctrl; 1: SABRE */ #define MID_CON_SUNI 0x00000040 /* 0: UTOPIA; 1: SUNI */ #define MID_CON_V6 0x00000020 /* 0: non-pipel UTOPIA (required iff !CON_SUNI; 1: UTOPIA */ #define DAUGTHER_ID 0x0000001f /* daugther board id */ /* * Interrupt Status Acknowledge, Interrupt Status & Interrupt Enable */ #define MID_ISA 0x01 /* Interrupt Status Acknowledge */ #define MID_IS 0x02 /* Interrupt Status */ #define MID_IE 0x03 /* Interrupt Enable */ #define MID_TX_COMPLETE_7 0x00010000 /* channel N completed a PDU */ #define MID_TX_COMPLETE_6 0x00008000 /* transmission */ #define MID_TX_COMPLETE_5 0x00004000 #define MID_TX_COMPLETE_4 0x00002000 #define MID_TX_COMPLETE_3 0x00001000 #define MID_TX_COMPLETE_2 0x00000800 #define MID_TX_COMPLETE_1 0x00000400 #define MID_TX_COMPLETE_0 0x00000200 #define MID_TX_COMPLETE 0x0001fe00 /* any TX */ #define MID_TX_DMA_OVFL 0x00000100 /* DMA to adapter overflow */ #define MID_TX_IDENT_MISM 0x00000080 /* TX: ident mismatch => halted */ #define MID_DMA_LERR_ACK 0x00000040 /* LERR - SBus ? */ #define MID_DMA_ERR_ACK 0x00000020 /* DMA error */ #define MID_RX_DMA_COMPLETE 0x00000010 /* DMA to host done */ #define MID_TX_DMA_COMPLETE 0x00000008 /* DMA from host done */ #define MID_SERVICE 0x00000004 /* something in service list */ #define MID_SUNI_INT 0x00000002 /* interrupt from SUNI */ #define MID_STAT_OVFL 0x00000001 /* statistics overflow */ /* * Master Control/Status */ #define MID_MC_S 0x04 #define MID_INT_SELECT 0x000001C0 /* Interrupt level (000: off) */ #define MID_INT_SEL_SHIFT 6 #define MID_TX_LOCK_MODE 0x00000020 /* 0: streaming; 1: TX ovfl->lock */ #define MID_DMA_ENABLE 0x00000010 /* R: 0: disable; 1: enable W: 0: no change; 1: enable */ #define MID_TX_ENABLE 0x00000008 /* R: 0: TX disabled; 1: enabled W: 0: no change; 1: enable */ #define MID_RX_ENABLE 0x00000004 /* like TX */ #define MID_WAIT_1MS 0x00000002 /* R: 0: timer not running; 1: running W: 0: no change; 1: no interrupts for 1 ms */ #define MID_WAIT_500US 0x00000001 /* like WAIT_1MS, but 0.5 ms */ /* * Statistics * * Cleared when reading. */ #define MID_STAT 0x05 #define MID_VCI_TRASH 0xFFFF0000 /* trashed cells because of VCI mode */ #define MID_VCI_TRASH_SHIFT 16 #define MID_OVFL_TRASH 0x0000FFFF /* trashed cells because of overflow */ /* * Address registers */ #define MID_SERV_WRITE 0x06 /* free pos in service area (R, 10 bits) */ #define MID_DMA_ADDR 0x07 /* virtual DMA address (R, 32 bits) */ #define MID_DMA_WR_RX 0x08 /* (RW, 9 bits) */ #define MID_DMA_RD_RX 0x09 #define MID_DMA_WR_TX 0x0A #define MID_DMA_RD_TX 0x0B /* * Transmit Place Registers (0x10+4*channel) */ #define MID_TX_PLACE(c) (0x10+4*(c)) #define MID_SIZE 0x00003800 /* size, N*256 x 32 bit */ #define MID_SIZE_SHIFT 11 #define MID_LOCATION 0x000007FF /* location in adapter memory (word) */ #define MID_LOC_SKIP 8 /* 8 bits of location are always zero (applies to all uses of location) */ /* * Transmit ReadPtr Registers (0x11+4*channel) */ #define MID_TX_RDPTR(c) (0x11+4*(c)) #define MID_READ_PTR 0x00007FFF /* next word for PHY */ /* * Transmit DescrStart Registers (0x12+4*channel) */ #define MID_TX_DESCRSTART(c) (0x12+4*(c)) #define MID_DESCR_START 0x00007FFF /* seg buffer being DMAed */ #define ENI155_MAGIC 0xa54b872d struct midway_eprom { unsigned char mac[MAC_LEN],inv_mac[MAC_LEN]; unsigned char pad[36]; u32 serial,inv_serial; u32 magic,inv_magic; }; /* * VCI table entry */ #define MID_VCI_IN_SERVICE 0x00000001 /* set if VCI is currently in service list */ #define MID_VCI_SIZE 0x00038000 /* reassembly buffer size, 2*<size> kB */ #define MID_VCI_SIZE_SHIFT 15 #define MID_VCI_LOCATION 0x1ffc0000 /* buffer location */ #define MID_VCI_LOCATION_SHIFT 18 #define MID_VCI_PTI_MODE 0x20000000 /* 0: trash, 1: preserve */ #define MID_VCI_MODE 0xc0000000 #define MID_VCI_MODE_SHIFT 30 #define MID_VCI_READ 0x00007fff #define MID_VCI_READ_SHIFT 0 #define MID_VCI_DESCR 0x7fff0000 #define MID_VCI_DESCR_SHIFT 16 #define MID_VCI_COUNT 0x000007ff #define MID_VCI_COUNT_SHIFT 0 #define MID_VCI_STATE 0x0000c000 #define MID_VCI_STATE_SHIFT 14 #define MID_VCI_WRITE 0x7fff0000 #define MID_VCI_WRITE_SHIFT 16 #define MID_MODE_TRASH 0 #define MID_MODE_RAW 1 #define MID_MODE_AAL5 2 /* * Reassembly buffer descriptor */ #define MID_RED_COUNT 0x000007ff #define MID_RED_CRC_ERR 0x00000800 #define MID_RED_T 0x00001000 #define MID_RED_CE 0x00010000 #define MID_RED_CLP 0x01000000 #define MID_RED_IDEN 0xfe000000 #define MID_RED_SHIFT 25 #define MID_RED_RX_ID 0x1b /* constant identifier */ /* * Segmentation buffer descriptor */ #define MID_SEG_COUNT MID_RED_COUNT #define MID_SEG_RATE 0x01f80000 #define MID_SEG_RATE_SHIFT 19 #define MID_SEG_PR 0x06000000 #define MID_SEG_PR_SHIFT 25 #define MID_SEG_AAL5 0x08000000 #define MID_SEG_ID 0xf0000000 #define MID_SEG_ID_SHIFT 28 #define MID_SEG_MAX_RATE 63 #define MID_SEG_CLP 0x00000001 #define MID_SEG_PTI 0x0000000e #define MID_SEG_PTI_SHIFT 1 #define MID_SEG_VCI 0x00003ff0 #define MID_SEG_VCI_SHIFT 4 #define MID_SEG_TX_ID 0xb /* constant identifier */ /* * DMA entry */ #define MID_DMA_COUNT 0xffff0000 #define MID_DMA_COUNT_SHIFT 16 #define MID_DMA_END 0x00000020 #define MID_DMA_TYPE 0x0000000f #define MID_DT_JK 0x3 #define MID_DT_WORD 0x0 #define MID_DT_2W 0x7 #define MID_DT_4W 0x4 #define MID_DT_8W 0x5 #define MID_DT_16W 0x6 #define MID_DT_2WM 0xf #define MID_DT_4WM 0xc #define MID_DT_8WM 0xd #define MID_DT_16WM 0xe /* only for RX*/ #define MID_DMA_VCI 0x0000ffc0 #define MID_DMA_VCI_SHIFT 6 /* only for TX */ #define MID_DMA_CHAN 0x000001c0 #define MID_DMA_CHAN_SHIFT 6 #define MID_DT_BYTE 0x1 #define MID_DT_HWORD 0x2 #endif
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