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cebix |
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/* |
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* Ethernet.cpp - SheepShaver ethernet PCI driver stub |
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* |
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* SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "sysdeps.h" |
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#include "xlowmem.h" |
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#include "ether_defs.h" |
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/* |
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* Driver Description structure |
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*/ |
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struct DriverDescription { |
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uint32 driverDescSignature; |
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uint32 driverDescVersion; |
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char nameInfoStr[32]; |
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uint32 version; |
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uint32 driverRuntime; |
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char driverName[32]; |
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uint32 driverDescReserved[8]; |
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uint32 nServices; |
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uint32 serviceCategory; |
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uint32 serviceType; |
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uint32 serviceVersion; |
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}; |
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#pragma export on |
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DriverDescription TheDriverDescription = { |
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'mtej', |
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0, |
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"\pSheepShaver Ethernet", |
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0x01008000, // V1.0.0final |
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4, // kDriverIsUnderExpertControl |
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"\penet", |
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0, 0, 0, 0, 0, 0, 0, 0, |
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1, |
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'otan', |
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0x000a0b01, // Ethernet, Framing: Ethernet/EthernetIPX/802.2, IsDLPI |
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0x01000000, // V1.0.0 |
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}; |
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#pragma export off |
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/* |
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* install_info and related structures |
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*/ |
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static int ether_open(queue_t *rdq, void *dev, int flag, int sflag, void *creds); |
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static int ether_close(queue_t *rdq, int flag, void *creds); |
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static int ether_wput(queue_t *q, msgb *mp); |
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static int ether_wsrv(queue_t *q); |
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static int ether_rput(queue_t *q, msgb *mp); |
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static int ether_rsrv(queue_t *q); |
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struct ot_module_info { |
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uint16 mi_idnum; |
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char *mi_idname; |
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int32 mi_minpsz; // Minimum packet size |
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int32 mi_maxpsz; // Maximum packet size |
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uint32 mi_hiwat; // Queue hi-water mark |
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uint32 mi_lowat; // Queue lo-water mark |
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}; |
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static ot_module_info module_information = { |
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kEnetModuleID, |
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"SheepShaver Ethernet", |
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0, |
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kEnetTSDU, |
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6000, |
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5000 |
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}; |
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typedef int (*putp_t)(queue_t *, msgb *); |
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typedef int (*srvp_t)(queue_t *); |
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typedef int (*openp_t)(queue_t *, void *, int, int, void *); |
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typedef int (*closep_t)(queue_t *, int, void *); |
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struct qinit { |
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putp_t qi_putp; |
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srvp_t qi_srvp; |
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openp_t qi_qopen; |
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closep_t qi_qclose; |
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void *qi_qadmin; |
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struct ot_module_info *qi_minfo; |
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void *qi_mstat; |
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}; |
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static qinit read_side = { |
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NULL, |
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ether_rsrv, |
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ether_open, |
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ether_close, |
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NULL, |
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&module_information, |
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NULL |
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}; |
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static qinit write_side = { |
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ether_wput, |
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NULL, |
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ether_open, |
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ether_close, |
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NULL, |
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&module_information, |
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NULL |
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}; |
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struct streamtab { |
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struct qinit *st_rdinit; |
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struct qinit *st_wrinit; |
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struct qinit *st_muxrinit; |
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struct qinit *st_muxwinit; |
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}; |
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static streamtab the_streamtab = { |
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&read_side, |
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&write_side, |
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NULL, |
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NULL |
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}; |
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struct install_info { |
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struct streamtab *install_str; |
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uint32 install_flags; |
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uint32 install_sqlvl; |
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char *install_buddy; |
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void *ref_load; |
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uint32 ref_count; |
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}; |
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enum { |
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kOTModIsDriver = 0x00000001, |
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kOTModUpperIsDLPI = 0x00002000, |
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SQLVL_MODULE = 3, |
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}; |
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static install_info the_install_info = { |
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&the_streamtab, |
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kOTModIsDriver /*| kOTModUpperIsDLPI */, |
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SQLVL_MODULE, |
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NULL, |
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NULL, |
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0 |
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}; |
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// Prototypes for exported functions |
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extern "C" { |
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#pragma export on |
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extern uint32 ValidateHardware(void *theID); |
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extern install_info* GetOTInstallInfo(); |
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extern uint8 InitStreamModule(void *theID); |
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extern void TerminateStreamModule(void); |
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#pragma export off |
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} |
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/* |
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* Validate that our hardware is available (always available) |
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*/ |
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uint32 ValidateHardware(void *theID) |
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{ |
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return 0; |
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} |
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/* |
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* Return pointer to install_info structure |
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*/ |
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install_info *GetOTInstallInfo(void) |
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{ |
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return &the_install_info; |
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} |
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/* |
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* Init module |
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*/ |
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asm uint8 InitStreamModule(register void *theID) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_INIT |
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mtctr r0 |
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bctr |
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} |
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/* |
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* Terminate module |
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*/ |
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asm void TerminateStreamModule(void) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_TERM |
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mtctr r0 |
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bctr |
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} |
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/* |
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* DLPI functions |
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*/ |
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static asm int ether_open(register queue_t *rdq, register void *dev, register int flag, register int sflag, register void *creds) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_OPEN |
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mtctr r0 |
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bctr |
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} |
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static asm int ether_close(register queue_t *rdq, register int flag, register void *creds) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_CLOSE |
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mtctr r0 |
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bctr |
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} |
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static asm int ether_wput(register queue_t *q, register msgb *mp) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_WPUT |
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mtctr r0 |
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bctr |
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} |
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static asm int ether_rsrv(register queue_t *q) |
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{ |
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lwz r2,XLM_TOC |
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lwz r0,XLM_ETHER_RSRV |
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mtctr r0 |
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bctr |
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} |
