X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fmipsnet.h;h=0132c6714a40322df917063e6cdccaa50d08fbe4;hb=3568834e813e0dd7547035b3148b2f2a2b48ee4e;hp=878535953cb13d8b0f24077839f5ce7a65034e9b;hpb=1ef43204f4bd24dcd3156185b19b31b6b4151ae9;p=linux-2.6-omap-h63xx.git diff --git a/drivers/net/mipsnet.h b/drivers/net/mipsnet.h index 878535953cb..0132c6714a4 100644 --- a/drivers/net/mipsnet.h +++ b/drivers/net/mipsnet.h @@ -1,60 +1,42 @@ -// -// -// Unpublished work (c) MIPS Technologies, Inc. All rights reserved. -// Unpublished rights reserved under the copyright laws of the U.S.A. and -// other countries. -// -// PROPRIETARY / SECRET CONFIDENTIAL INFORMATION OF MIPS TECHNOLOGIES, INC. -// FOR INTERNAL USE ONLY. -// -// Under no circumstances (contract or otherwise) may this information be -// disclosed to, or copied, modified or used by anyone other than employees -// or contractors of MIPS Technologies having a need to know. -// -// -//++ -// File: MIPS_Net.h -// -// Description: -// The definition of the emulated MIPSNET device's interface. -// -// Notes: This include file needs to work from a Linux device drivers. -// -//-- -// - +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ #ifndef __MIPSNET_H #define __MIPSNET_H /* * Id of this Net device, as seen by the core. */ -#define MIPS_NET_DEV_ID ((uint64_t) \ - ((uint64_t)'M'<< 0)| \ - ((uint64_t)'I'<< 8)| \ - ((uint64_t)'P'<<16)| \ - ((uint64_t)'S'<<24)| \ - ((uint64_t)'N'<<32)| \ - ((uint64_t)'E'<<40)| \ - ((uint64_t)'T'<<48)| \ - ((uint64_t)'0'<<56)) +#define MIPS_NET_DEV_ID ((uint64_t) \ + ((uint64_t) 'M' << 0)| \ + ((uint64_t) 'I' << 8)| \ + ((uint64_t) 'P' << 16)| \ + ((uint64_t) 'S' << 24)| \ + ((uint64_t) 'N' << 32)| \ + ((uint64_t) 'E' << 40)| \ + ((uint64_t) 'T' << 48)| \ + ((uint64_t) '0' << 56)) /* * Net status/control block as seen by sw in the core. * (Why not use bit fields? can't be bothered with cross-platform struct * packing.) */ -typedef struct _net_control_block { - /// dev info for probing - /// reads as MIPSNET%d where %d is some form of version - uint64_t devId; /*0x00 */ +struct net_control_block { + /* + * dev info for probing + * reads as MIPSNET%d where %d is some form of version + */ + uint64_t devId; /* 0x00 */ /* * read only busy flag. * Set and cleared by the Net Device to indicate that an rx or a tx * is in progress. */ - uint32_t busy; /*0x08 */ + uint32_t busy; /* 0x08 */ /* * Set by the Net Device. @@ -63,16 +45,16 @@ typedef struct _net_control_block { * rxDataBuffer. The value will decrease till 0 until all the data * from rxDataBuffer has been read. */ - uint32_t rxDataCount; /*0x0c */ + uint32_t rxDataCount; /* 0x0c */ #define MIPSNET_MAX_RXTX_DATACOUNT (1<<16) /* - * Settable from the MIPS core, cleared by the Net Device. - * The core should set the number of bytes it wants to send, - * then it should write those bytes of data to txDataBuffer. - * The device will clear txDataCount has been processed (not necessarily sent). + * Settable from the MIPS core, cleared by the Net Device. The core + * should set the number of bytes it wants to send, then it should + * write those bytes of data to txDataBuffer. The device will clear + * txDataCount has been processed (not necessarily sent). */ - uint32_t txDataCount; /*0x10 */ + uint32_t txDataCount; /* 0x10 */ /* * Interrupt control @@ -89,39 +71,42 @@ typedef struct _net_control_block { * To clear the test interrupt, write 0 to this register. */ uint32_t interruptControl; /*0x14 */ -#define MIPSNET_INTCTL_TXDONE ((uint32_t)(1<< 0)) -#define MIPSNET_INTCTL_RXDONE ((uint32_t)(1<< 1)) -#define MIPSNET_INTCTL_TESTBIT ((uint32_t)(1<<31)) -#define MIPSNET_INTCTL_ALLSOURCES (MIPSNET_INTCTL_TXDONE|MIPSNET_INTCTL_RXDONE|MIPSNET_INTCTL_TESTBIT) +#define MIPSNET_INTCTL_TXDONE ((uint32_t)(1 << 0)) +#define MIPSNET_INTCTL_RXDONE ((uint32_t)(1 << 1)) +#define MIPSNET_INTCTL_TESTBIT ((uint32_t)(1 << 31)) +#define MIPSNET_INTCTL_ALLSOURCES (MIPSNET_INTCTL_TXDONE | \ + MIPSNET_INTCTL_RXDONE | \ + MIPSNET_INTCTL_TESTBIT) /* - * Readonly core-specific interrupt info for the device to signal the core. - * The meaning of the contents of this field might change. - */ - /*###\todo: the whole memIntf interrupt scheme is messy: the device should have - * no control what so ever of what VPE/register set is being used. - * The MemIntf should only expose interrupt lines, and something in the - * config should be responsible for the line<->core/vpe bindings. + * Readonly core-specific interrupt info for the device to signal the + * core. The meaning of the contents of this field might change. + * + * TODO: the whole memIntf interrupt scheme is messy: the device should + * have no control what so ever of what VPE/register set is being + * used. The MemIntf should only expose interrupt lines, and + * something in the config should be responsible for the + * line<->core/vpe bindings. */ - uint32_t interruptInfo; /*0x18 */ + uint32_t interruptInfo; /* 0x18 */ /* * This is where the received data is read out. * There is more data to read until rxDataReady is 0. * Only 1 byte at this regs offset is used. */ - uint32_t rxDataBuffer; /*0x1c */ + uint32_t rxDataBuffer; /* 0x1c */ /* - * This is where the data to transmit is written. - * Data should be written for the amount specified in the txDataCount register. - * Only 1 byte at this regs offset is used. + * This is where the data to transmit is written. Data should be + * written for the amount specified in the txDataCount register. Only + * 1 byte at this regs offset is used. */ - uint32_t txDataBuffer; /*0x20 */ -} MIPS_T_NetControl; + uint32_t txDataBuffer; /* 0x20 */ +}; #define MIPSNET_IO_EXTENT 0x40 /* being generous */ -#define field_offset(field) ((int)&((MIPS_T_NetControl*)(0))->field) +#define field_offset(field) (offsetof(struct net_control_block, field)) #endif /* __MIPSNET_H */