diff options
Diffstat (limited to 'drivers/net/ethernet/seeq/sgiseeq.h')
| -rw-r--r-- | drivers/net/ethernet/seeq/sgiseeq.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/net/ethernet/seeq/sgiseeq.h b/drivers/net/ethernet/seeq/sgiseeq.h new file mode 100644 index 000000000..2f65c5560 --- /dev/null +++ b/drivers/net/ethernet/seeq/sgiseeq.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * sgiseeq.h: Defines for the Seeq8003 ethernet controller. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + */ +#ifndef _SGISEEQ_H +#define _SGISEEQ_H + +struct sgiseeq_wregs { + volatile unsigned int multicase_high[2]; + volatile unsigned int frame_gap; + volatile unsigned int control; +}; + +struct sgiseeq_rregs { + volatile unsigned int collision_tx[2]; + volatile unsigned int collision_all[2]; + volatile unsigned int _unused0; + volatile unsigned int rflags; +}; + +struct sgiseeq_regs { + union { + volatile unsigned int eth_addr[6]; + volatile unsigned int multicast_low[6]; + struct sgiseeq_wregs wregs; + struct sgiseeq_rregs rregs; + } rw; + volatile unsigned int rstat; + volatile unsigned int tstat; +}; + +/* Seeq8003 receive status register */ +#define SEEQ_RSTAT_OVERF 0x001 /* Overflow */ +#define SEEQ_RSTAT_CERROR 0x002 /* CRC error */ +#define SEEQ_RSTAT_DERROR 0x004 /* Dribble error */ +#define SEEQ_RSTAT_SFRAME 0x008 /* Short frame */ +#define SEEQ_RSTAT_REOF 0x010 /* Received end of frame */ +#define SEEQ_RSTAT_FIG 0x020 /* Frame is good */ +#define SEEQ_RSTAT_TIMEO 0x040 /* Timeout, or late receive */ +#define SEEQ_RSTAT_WHICH 0x080 /* Which status, 1=old 0=new */ +#define SEEQ_RSTAT_LITTLE 0x100 /* DMA is done in little endian format */ +#define SEEQ_RSTAT_SDMA 0x200 /* DMA has started */ +#define SEEQ_RSTAT_ADMA 0x400 /* DMA is active */ +#define SEEQ_RSTAT_ROVERF 0x800 /* Receive buffer overflow */ + +/* Seeq8003 receive command register */ +#define SEEQ_RCMD_RDISAB 0x000 /* Disable receiver on the Seeq8003 */ +#define SEEQ_RCMD_IOVERF 0x001 /* IRQ on buffer overflows */ +#define SEEQ_RCMD_ICRC 0x002 /* IRQ on CRC errors */ +#define SEEQ_RCMD_IDRIB 0x004 /* IRQ on dribble errors */ +#define SEEQ_RCMD_ISHORT 0x008 /* IRQ on short frames */ +#define SEEQ_RCMD_IEOF 0x010 /* IRQ on end of frame */ +#define SEEQ_RCMD_IGOOD 0x020 /* IRQ on good frames */ +#define SEEQ_RCMD_RANY 0x040 /* Receive any frame */ +#define SEEQ_RCMD_RBCAST 0x080 /* Receive broadcasts */ +#define SEEQ_RCMD_RBMCAST 0x0c0 /* Receive broadcasts/multicasts */ + +/* Seeq8003 transmit status register */ +#define SEEQ_TSTAT_UFLOW 0x001 /* Transmit buffer underflow */ +#define SEEQ_TSTAT_CLS 0x002 /* Collision detected */ +#define SEEQ_TSTAT_R16 0x004 /* Did 16 retries to tx a frame */ +#define SEEQ_TSTAT_PTRANS 0x008 /* Packet was transmitted ok */ +#define SEEQ_TSTAT_LCLS 0x010 /* Late collision occurred */ +#define SEEQ_TSTAT_WHICH 0x080 /* Which status, 1=old 0=new */ +#define SEEQ_TSTAT_TLE 0x100 /* DMA is done in little endian format */ +#define SEEQ_TSTAT_SDMA 0x200 /* DMA has started */ +#define SEEQ_TSTAT_ADMA 0x400 /* DMA is active */ + +/* Seeq8003 transmit command register */ +#define SEEQ_TCMD_RB0 0x00 /* Register bank zero w/station addr */ +#define SEEQ_TCMD_IUF 0x01 /* IRQ on tx underflow */ +#define SEEQ_TCMD_IC 0x02 /* IRQ on collisions */ +#define SEEQ_TCMD_I16 0x04 /* IRQ after 16 failed attempts to tx frame */ +#define SEEQ_TCMD_IPT 0x08 /* IRQ when packet successfully transmitted */ +#define SEEQ_TCMD_RB1 0x20 /* Register bank one w/multi-cast low byte */ +#define SEEQ_TCMD_RB2 0x40 /* Register bank two w/multi-cast high byte */ + +/* Seeq8003 control register */ +#define SEEQ_CTRL_XCNT 0x01 +#define SEEQ_CTRL_ACCNT 0x02 +#define SEEQ_CTRL_SFLAG 0x04 +#define SEEQ_CTRL_EMULTI 0x08 +#define SEEQ_CTRL_ESHORT 0x10 +#define SEEQ_CTRL_ENCARR 0x20 + +/* Seeq8003 control registers on the SGI Hollywood HPC. */ +#define SEEQ_HPIO_P1BITS 0x00000001 /* cycles to stay in P1 phase for PIO */ +#define SEEQ_HPIO_P2BITS 0x00000060 /* cycles to stay in P2 phase for PIO */ +#define SEEQ_HPIO_P3BITS 0x00000100 /* cycles to stay in P3 phase for PIO */ +#define SEEQ_HDMA_D1BITS 0x00000006 /* cycles to stay in D1 phase for DMA */ +#define SEEQ_HDMA_D2BITS 0x00000020 /* cycles to stay in D2 phase for DMA */ +#define SEEQ_HDMA_D3BITS 0x00000000 /* cycles to stay in D3 phase for DMA */ +#define SEEQ_HDMA_TIMEO 0x00030000 /* cycles for DMA timeout */ +#define SEEQ_HCTL_NORM 0x00000000 /* Normal operation mode */ +#define SEEQ_HCTL_RESET 0x00000001 /* Reset Seeq8003 and HPC interface */ +#define SEEQ_HCTL_IPEND 0x00000002 /* IRQ is pending for the chip */ +#define SEEQ_HCTL_IPG 0x00001000 /* Inter-packet gap */ +#define SEEQ_HCTL_RFIX 0x00002000 /* At rxdc, clear end-of-packet */ +#define SEEQ_HCTL_EFIX 0x00004000 /* fixes intr status bit settings */ +#define SEEQ_HCTL_IFIX 0x00008000 /* enable startup timeouts */ + +#endif /* !(_SGISEEQ_H) */ |