+++ /dev/null
-/*
- * Copyright (c) 2020-2021 Niklas Ekström
- *
- * Thanks to Christian Vogelgsang and Mike Sterling for inspiration gained from their SANA-II drivers:
- * - https://github.com/cnvogelg/plipbox
- * - https://github.com/mikestir/k1208-drivers
- */
-
-#include <exec/types.h>
-#include <exec/execbase.h>
-#include <exec/devices.h>
-#include <exec/errors.h>
-#include <exec/ports.h>
-#include <libraries/dos.h>
-#include <proto/exec.h>
-#include <proto/dos.h>
-
-#include <string.h>
-
-#include <clib/alib_protos.h>
-
-#include "../../a314device/a314.h"
-#include "../../a314device/proto_a314.h"
-#include "sana2.h"
-
-// Defines.
-
-#define DEVICE_NAME "a314eth.device"
-#define SERVICE_NAME "ethernet"
-
-#define TASK_PRIO 10
-
-#define MACADDR_SIZE 6
-#define NIC_BPS 10000000
-
-#define ETH_MTU 1500
-#define RAW_MTU 1518
-
-#define READ_FRAME_REQ 1
-#define WRITE_FRAME_REQ 2
-#define READ_FRAME_RES 3
-#define WRITE_FRAME_RES 4
-
-#define ET_RBUF_CNT 2
-#define ET_WBUF_CNT 2
-#define ET_BUF_CNT (ET_RBUF_CNT + ET_WBUF_CNT)
-
-// Typedefs.
-
-typedef BOOL (*buf_copy_func_t)(__reg("a0") void *dst, __reg("a1") void *src, __reg("d0") LONG size);
-
-// Structs.
-
-#pragma pack(push, 1)
-struct EthHdr
-{
- unsigned char eh_Dst[MACADDR_SIZE];
- unsigned char eh_Src[MACADDR_SIZE];
- unsigned short eh_Type;
-};
-#pragma pack(pop)
-
-#pragma pack(push, 1)
-struct ServiceMsg
-{
- ULONG sm_Address;
- UWORD sm_Length;
- UWORD sm_Kind;
-};
-#pragma pack(pop)
-
-struct BufDesc
-{
- struct MinNode bd_Node;
- void *bd_Buffer;
- int bd_Length;
-};
-
-// Constants.
-
-const char device_name[] = DEVICE_NAME;
-const char id_string[] = DEVICE_NAME " 1.0 (20 July 2020)";
-
-static const char service_name[] = SERVICE_NAME;
-static const char a314_device_name[] = A314_NAME;
-
-static const unsigned char macaddr[MACADDR_SIZE] = { 0x40, 0x61, 0x33, 0x31, 0x34, 0x65 };
-
-// Global variables.
-
-BPTR saved_seg_list;
-struct ExecBase *SysBase;
-struct DosLibrary *DOSBase;
-struct Library *A314Base;
-
-buf_copy_func_t copyfrom;
-buf_copy_func_t copyto;
-
-volatile struct List ut_rbuf_list;
-volatile struct List ut_wbuf_list;
-
-struct BufDesc et_bufs[ET_BUF_CNT];
-
-struct List et_rbuf_free_list;
-struct List et_rbuf_pending_list;
-struct List et_rbuf_has_data_list;
-
-struct List et_wbuf_free_list;
-struct List et_wbuf_pending_list;
-
-LONG a314_socket;
-short last_req_kind;
-
-struct MsgPort a314_mp;
-
-struct A314_IORequest read_ior;
-struct A314_IORequest write_ior;
-struct A314_IORequest reset_ior;
-
-BOOL pending_a314_read;
-BOOL pending_a314_write;
-BOOL pending_a314_reset;
-
-struct ServiceMsg a314_read_buf;
-struct ServiceMsg a314_write_buf;
-
-volatile ULONG sana2_sigmask;
-volatile ULONG shutdown_sigmask;
-
-volatile struct Task *init_task;
-
-struct Process *device_process;
-volatile int device_start_error;
-
-// External declarations.
-
-extern void device_process_seglist();
-
-// Procedures.
-
-static struct Library *init_device(__reg("a6") struct ExecBase *sys_base, __reg("a0") BPTR seg_list, __reg("d0") struct Library *dev)
-{
- saved_seg_list = seg_list;
-
- dev->lib_Node.ln_Type = NT_DEVICE;
- dev->lib_Node.ln_Name = (char *)device_name;
- dev->lib_Flags = LIBF_SUMUSED | LIBF_CHANGED;
- dev->lib_Version = 1;
- dev->lib_Revision = 0;
- dev->lib_IdString = (APTR)id_string;
-
- SysBase = *(struct ExecBase **)4;
- DOSBase = (struct DosLibrary *)OpenLibrary(DOSNAME, 0);
-
- return dev;
-}
-
-static BPTR expunge(__reg("a6") struct Library *dev)
-{
- if (dev->lib_OpenCnt)
- {
- dev->lib_Flags |= LIBF_DELEXP;
- return 0;
- }
-
- // Shady way of waiting for device process to terminate before unloading.
- Delay(10);
-
- CloseLibrary((struct Library *)DOSBase);
-
- Remove(&dev->lib_Node);
- FreeMem((char *)dev - dev->lib_NegSize, dev->lib_NegSize + dev->lib_PosSize);
- return saved_seg_list;
-}
-
-static void send_a314_cmd(struct A314_IORequest *ior, UWORD cmd, char *buffer, int length)
-{
- ior->a314_Request.io_Command = cmd;
- ior->a314_Request.io_Error = 0;
- ior->a314_Socket = a314_socket;
- ior->a314_Buffer = buffer;
- ior->a314_Length = length;
- SendIO((struct IORequest *)ior);
-}
-
-static void do_a314_cmd(struct A314_IORequest *ior, UWORD cmd, char *buffer, int length)
-{
- ior->a314_Request.io_Command = cmd;
- ior->a314_Request.io_Error = 0;
- ior->a314_Socket = a314_socket;
- ior->a314_Buffer = buffer;
- ior->a314_Length = length;
- DoIO((struct IORequest *)ior);
-}
-
-static void copy_from_bd_and_reply(struct IOSana2Req *ios2, struct BufDesc *bd)
-{
- struct EthHdr *eh = bd->bd_Buffer;
-
- if (ios2->ios2_Req.io_Flags & SANA2IOF_RAW)
- {
- ios2->ios2_DataLength = bd->bd_Length;
- copyto(ios2->ios2_Data, bd->bd_Buffer, ios2->ios2_DataLength);
- ios2->ios2_Req.io_Flags = SANA2IOF_RAW;
- }
- else
- {
- ios2->ios2_DataLength = bd->bd_Length - sizeof(struct EthHdr);
- copyto(ios2->ios2_Data, &eh[1], ios2->ios2_DataLength);
- ios2->ios2_Req.io_Flags = 0;
- }
-
- memcpy(ios2->ios2_SrcAddr, eh->eh_Src, MACADDR_SIZE);
- memcpy(ios2->ios2_DstAddr, eh->eh_Dst, MACADDR_SIZE);
-
- BOOL bcast = TRUE;
- for (int i = 0; i < MACADDR_SIZE; i++)
- {
- if (eh->eh_Dst[i] != 0xff)
- {
- bcast = FALSE;
- break;
- }
- }
-
- if (bcast)
- ios2->ios2_Req.io_Flags |= SANA2IOF_BCAST;
-
- ios2->ios2_PacketType = eh->eh_Type;
-
- ios2->ios2_Req.io_Error = 0;
- ReplyMsg(&ios2->ios2_Req.io_Message);
-}
-
-static void copy_to_bd_and_reply(struct BufDesc *bd, struct IOSana2Req *ios2)
-{
- struct EthHdr *eh = bd->bd_Buffer;
-
- if (ios2->ios2_Req.io_Flags & SANA2IOF_RAW)
- {
- copyfrom(bd->bd_Buffer, ios2->ios2_Data, ios2->ios2_DataLength);
- bd->bd_Length = ios2->ios2_DataLength;
- }
- else
- {
- eh->eh_Type = ios2->ios2_PacketType;
- memcpy(eh->eh_Src, macaddr, sizeof(macaddr));
- memcpy(eh->eh_Dst, ios2->ios2_DstAddr, MACADDR_SIZE);
- copyfrom(&eh[1], ios2->ios2_Data, ios2->ios2_DataLength);
- bd->bd_Length = ios2->ios2_DataLength + sizeof(struct EthHdr);
- }
-
- ios2->ios2_Req.io_Error = 0;
- ReplyMsg(&ios2->ios2_Req.io_Message);
-}
-
-static void handle_a314_reply(struct A314_IORequest *ior)
-{
- if (ior == &write_ior)
- {
- pending_a314_write = FALSE;
-
- if (ior->a314_Request.io_Error == A314_WRITE_OK)
- {
- // Start new write later.
- }
- else // A314_WRITE_RESET
- {
- // TODO: Handle. What if pi-side is shutting down.
- }
- }
- else if (ior == &read_ior)
- {
- pending_a314_read = FALSE;
-
- if (ior->a314_Request.io_Error == A314_READ_OK)
- {
- if (a314_read_buf.sm_Kind == WRITE_FRAME_RES)
- {
- struct BufDesc *bd = (struct BufDesc *)RemHead(&et_wbuf_pending_list);
- AddTail(&et_wbuf_free_list, (struct Node *)bd);
- }
- else // READ_FRAME_RES
- {
- struct BufDesc *bd = (struct BufDesc *)RemHead(&et_rbuf_pending_list);
- bd->bd_Length = a314_read_buf.sm_Length;
- AddTail(&et_rbuf_has_data_list, (struct Node *)bd);
- }
-
- send_a314_cmd(&read_ior, A314_READ, (void *)&a314_read_buf, sizeof(a314_read_buf));
- pending_a314_read = TRUE;
- }
- else // A314_READ_RESET
- {
- // TODO: Handle. What if pi-side is shutting down.
- }
- }
- else if (ior == &reset_ior)
- {
- pending_a314_reset = FALSE;
- }
-}
-
-static struct IOSana2Req *remove_matching_rbuf(ULONG type)
-{
- struct Node *node = ut_rbuf_list.lh_Head;
- while (node->ln_Succ)
- {
- struct IOSana2Req *ios2 = (struct IOSana2Req *)node;
- if (ios2->ios2_PacketType == type)
- {
- Remove(node);
- return ios2;
- }
- node = node->ln_Succ;
- }
- return NULL;
-}
-
-static void complete_read_reqs()
-{
- struct Node *node = et_rbuf_has_data_list.lh_Head;
- if (!node->ln_Succ)
- return;
-
- Forbid();
- while (node->ln_Succ)
- {
- struct BufDesc *bd = (struct BufDesc *)node;
- struct EthHdr *eh = (struct EthHdr *)bd->bd_Buffer;
-
- node = node->ln_Succ;
-
- struct IOSana2Req *ios2 = remove_matching_rbuf(eh->eh_Type);
- if (ios2)
- {
- copy_from_bd_and_reply(ios2, bd);
-
- Remove((struct Node *)bd);
- AddTail(&et_rbuf_free_list, (struct Node *)bd);
- }
- }
- Permit();
-}
-
-static void maybe_write_req()
-{
- if (pending_a314_write)
- return;
-
- BOOL free_et_wbuf = et_wbuf_free_list.lh_Head->ln_Succ != NULL;
- BOOL idle_et_rbuf = et_rbuf_free_list.lh_Head->ln_Succ != NULL;
-
- Forbid();
-
- BOOL waiting_ut_wbuf = ut_wbuf_list.lh_Head->ln_Succ != NULL;
-
- BOOL want_wbuf = free_et_wbuf && waiting_ut_wbuf;
- BOOL want_rbuf = idle_et_rbuf;
-
- if (!want_rbuf && !want_wbuf)
- {
- Permit();
- return;
- }
-
- short next_req_kind = 0;
-
- if (last_req_kind == WRITE_FRAME_REQ)
- next_req_kind = want_rbuf ? READ_FRAME_REQ : WRITE_FRAME_REQ;
- else
- next_req_kind = want_wbuf ? WRITE_FRAME_REQ : READ_FRAME_REQ;
-
- struct IOSana2Req *ios2 = NULL;
- if (next_req_kind == WRITE_FRAME_REQ)
- ios2 = (struct IOSana2Req*)RemHead((struct List *)&ut_wbuf_list);
-
- Permit();
-
- struct BufDesc *bd;
-
- if (next_req_kind == READ_FRAME_REQ)
- {
- bd = (struct BufDesc *)RemHead(&et_rbuf_free_list);
- bd->bd_Length = RAW_MTU;
- AddTail(&et_rbuf_pending_list, (struct Node *)&bd->bd_Node);
- }
- else // WRITE_FRAME_REQ
- {
- bd = (struct BufDesc *)RemHead(&et_wbuf_free_list);
- copy_to_bd_and_reply(bd, ios2);
- AddTail(&et_wbuf_pending_list, (struct Node *)bd);
- }
-
- a314_write_buf.sm_Address = TranslateAddressA314(bd->bd_Buffer);
- a314_write_buf.sm_Length = bd->bd_Length;
- a314_write_buf.sm_Kind = next_req_kind;
-
- send_a314_cmd(&write_ior, A314_WRITE, (void *)&a314_write_buf, sizeof(a314_write_buf));
- pending_a314_write = TRUE;
-
- last_req_kind = next_req_kind;
-}
-
-void device_process_run()
-{
- ULONG sana2_signal = AllocSignal(-1);
- sana2_sigmask = 1UL << sana2_signal;
-
- ULONG shutdown_signal = AllocSignal(-1);
- shutdown_sigmask = 1UL << shutdown_signal;
-
- a314_mp.mp_SigBit = AllocSignal(-1);
- a314_mp.mp_SigTask = FindTask(NULL);
-
- do_a314_cmd(&reset_ior, A314_CONNECT, (char *)service_name, strlen(service_name));
- device_start_error = reset_ior.a314_Request.io_Error == A314_CONNECT_OK ? 0 : -1;
-
- Signal((struct Task *)init_task, SIGF_SINGLE);
-
- if (device_start_error)
- return;
-
- ULONG a314_sigmask = 1UL << a314_mp.mp_SigBit;
-
- send_a314_cmd(&read_ior, A314_READ, (void *)&a314_read_buf, sizeof(a314_read_buf));
- pending_a314_read = TRUE;
-
- BOOL shutting_down = FALSE;
-
- while (TRUE)
- {
- complete_read_reqs();
- maybe_write_req();
-
- if (shutting_down && !pending_a314_read && !pending_a314_write && !pending_a314_reset)
- break;
-
- ULONG sigs = Wait(a314_sigmask | sana2_sigmask | shutdown_sigmask);
-
- if ((sigs & shutdown_sigmask) && !shutting_down)
- {
- send_a314_cmd(&reset_ior, A314_RESET, NULL, 0);
- pending_a314_reset = TRUE;
- shutting_down = TRUE;
- }
-
- if (sigs & a314_sigmask)
- {
- struct A314_IORequest *ior;
- while ((ior = (struct A314_IORequest *)GetMsg(&a314_mp)))
- handle_a314_reply(ior);
- }
- }
-
- Signal((struct Task *)init_task, SIGF_SINGLE);
-}
-
-static struct TagItem *FindTagItem(Tag tagVal, struct TagItem *tagList)
-{
- struct TagItem *ti = tagList;
- while (ti && ti->ti_Tag != tagVal)
- {
- switch (ti->ti_Tag)
- {
- case TAG_DONE:
- return NULL;
- case TAG_MORE:
- ti = (struct TagItem *)ti->ti_Data;
- break;
- case TAG_SKIP:
- ti += ti->ti_Data + 1;
- break;
- case TAG_IGNORE:
- default:
- ti++;
- break;
- }
- }
- return ti;
-}
-
-static ULONG GetTagData(Tag tagVal, ULONG defaultData, struct TagItem *tagList)
-{
- struct TagItem *ti = FindTagItem(tagVal, tagList);
- return ti ? ti->ti_Data : defaultData;
-}
-
-static void open(__reg("a6") struct Library *dev, __reg("a1") struct IOSana2Req *ios2, __reg("d0") ULONG unitnum, __reg("d1") ULONG flags)
-{
- ios2->ios2_Req.io_Error = IOERR_OPENFAIL;
- ios2->ios2_Req.io_Message.mn_Node.ln_Type = NT_REPLYMSG;
-
- if (unitnum != 0 || dev->lib_OpenCnt)
- return;
-
- dev->lib_OpenCnt++;
-
- copyfrom = (buf_copy_func_t)GetTagData(S2_CopyFromBuff, 0, (struct TagItem *)ios2->ios2_BufferManagement);
- copyto = (buf_copy_func_t)GetTagData(S2_CopyToBuff, 0, (struct TagItem *)ios2->ios2_BufferManagement);
- ios2->ios2_BufferManagement = (void *)0xdeadbeefUL;
-
- memset(&a314_mp, 0, sizeof(a314_mp));
- a314_mp.mp_Node.ln_Pri = 0;
- a314_mp.mp_Node.ln_Type = NT_MSGPORT;
- a314_mp.mp_Node.ln_Name = (char *)device_name;
- a314_mp.mp_Flags = PA_SIGNAL;
- NewList(&a314_mp.mp_MsgList);
-
- memset(&write_ior, 0, sizeof(write_ior));
- write_ior.a314_Request.io_Message.mn_ReplyPort = &a314_mp;
- write_ior.a314_Request.io_Message.mn_Length = sizeof(write_ior);
- write_ior.a314_Request.io_Message.mn_Node.ln_Type = NT_REPLYMSG;
-
- A314Base = NULL;
- if (OpenDevice((char *)a314_device_name, 0, (struct IORequest *)&write_ior, 0))
- goto error;
-
- A314Base = &(write_ior.a314_Request.io_Device->dd_Library);
-
- memcpy(&read_ior, &write_ior, sizeof(read_ior));
- memcpy(&reset_ior, &write_ior, sizeof(reset_ior));
-
- struct DateStamp ds;
- DateStamp(&ds);
- a314_socket = (ds.ds_Minute * 60 * TICKS_PER_SECOND) + ds.ds_Tick;
-
- last_req_kind = WRITE_FRAME_REQ;
-
- NewList((struct List *)&ut_rbuf_list);
- NewList((struct List *)&ut_wbuf_list);
-
- NewList(&et_rbuf_free_list);
- NewList(&et_rbuf_pending_list);
- NewList(&et_rbuf_has_data_list);
-
- NewList(&et_wbuf_free_list);
- NewList(&et_wbuf_pending_list);
-
- for (int i = 0; i < ET_BUF_CNT; i++)
- memset(&et_bufs[i], 0, sizeof(struct BufDesc));
-
- for (int i = 0; i < ET_BUF_CNT; i++)
- {
- struct BufDesc *bd = &et_bufs[i];
-
- bd->bd_Buffer = AllocMem(RAW_MTU, MEMF_FAST);
- if (!bd->bd_Buffer)
- goto error;
-
- if (i < ET_RBUF_CNT)
- AddTail(&et_rbuf_free_list, (struct Node*)&bd->bd_Node);
- else
- AddTail(&et_wbuf_free_list, (struct Node*)&bd->bd_Node);
- }
-
- init_task = FindTask(NULL);
-
- struct MsgPort *device_mp = CreateProc((char *)device_name, TASK_PRIO, ((ULONG)device_process_seglist) >> 2, 2048);
- if (!device_mp)
- goto error;
-
- device_process = (struct Process *)((char *)device_mp - sizeof(struct Task));
-
- Wait(SIGF_SINGLE);
-
- if (device_start_error)
- goto error;
-
- ios2->ios2_Req.io_Error = 0;
- return;
-
-error:
- for (int i = ET_BUF_CNT - 1; i >= 0; i--)
- if (et_bufs[i].bd_Buffer)
- FreeMem(et_bufs[i].bd_Buffer, RAW_MTU);
-
- if (A314Base)
- {
- CloseDevice((struct IORequest *)&write_ior);
- A314Base = NULL;
- }
-
- dev->lib_OpenCnt--;
-}
-
-static BPTR close(__reg("a6") struct Library *dev, __reg("a1") struct IOSana2Req *ios2)
-{
- init_task = FindTask(NULL);
- Signal(&device_process->pr_Task, shutdown_sigmask);
- Wait(SIGF_SINGLE);
-
- for (int i = ET_BUF_CNT - 1; i >= 0; i--)
- FreeMem(et_bufs[i].bd_Buffer, RAW_MTU);
-
- CloseDevice((struct IORequest *)&write_ior);
- A314Base = NULL;
-
- ios2->ios2_Req.io_Device = NULL;
- ios2->ios2_Req.io_Unit = NULL;
-
- dev->lib_OpenCnt--;
-
- if (dev->lib_OpenCnt == 0 && (dev->lib_Flags & LIBF_DELEXP))
- return expunge(dev);
-
- return 0;
-}
-
-static void device_query(struct IOSana2Req *req)
-{
- struct Sana2DeviceQuery *query;
-
- query = req->ios2_StatData;
- query->DevQueryFormat = 0;
- query->DeviceLevel = 0;
-
- if (query->SizeAvailable >= 18)
- query->AddrFieldSize = MACADDR_SIZE * 8;
-
- if (query->SizeAvailable >= 22)
- query->MTU = ETH_MTU;
-
- if (query->SizeAvailable >= 26)
- query->BPS = NIC_BPS;
-
- if (query->SizeAvailable >= 30)
- query->HardwareType = S2WireType_Ethernet;
-
- query->SizeSupplied = query->SizeAvailable < 30 ? query->SizeAvailable : 30;
-}
-
-static void begin_io(__reg("a6") struct Library *dev, __reg("a1") struct IOSana2Req *ios2)
-{
- ios2->ios2_Req.io_Error = S2ERR_NO_ERROR;
- ios2->ios2_WireError = S2WERR_GENERIC_ERROR;
-
- switch (ios2->ios2_Req.io_Command)
- {
- case CMD_READ:
- if (!ios2->ios2_BufferManagement)
- {
- ios2->ios2_Req.io_Error = S2ERR_BAD_ARGUMENT;
- ios2->ios2_WireError = S2WERR_BUFF_ERROR;
- break;
- }
-
- Forbid();
- AddTail((struct List *)&ut_rbuf_list, &ios2->ios2_Req.io_Message.mn_Node);
- Permit();
-
- ios2->ios2_Req.io_Flags &= ~SANA2IOF_QUICK;
- ios2 = NULL;
-
- Signal(&device_process->pr_Task, sana2_sigmask);
- break;
-
- case S2_BROADCAST:
- memset(ios2->ios2_DstAddr, 0xff, MACADDR_SIZE);
- /* Fall through */
-
- case CMD_WRITE:
- if (((ios2->ios2_Req.io_Flags & SANA2IOF_RAW) != 0 && ios2->ios2_DataLength > RAW_MTU) ||
- ((ios2->ios2_Req.io_Flags & SANA2IOF_RAW) == 0 && ios2->ios2_DataLength > ETH_MTU))
- {
- ios2->ios2_Req.io_Error = S2ERR_MTU_EXCEEDED;
- break;
- }
-
- if (!ios2->ios2_BufferManagement)
- {
- ios2->ios2_Req.io_Error = S2ERR_BAD_ARGUMENT;
- ios2->ios2_WireError = S2WERR_BUFF_ERROR;
- break;
- }
-
- Forbid();
- AddTail((struct List *)&ut_wbuf_list, &ios2->ios2_Req.io_Message.mn_Node);
- Permit();
-
- ios2->ios2_Req.io_Flags &= ~SANA2IOF_QUICK;
- ios2 = NULL;
-
- Signal(&device_process->pr_Task, sana2_sigmask);
- break;
-
- case S2_ONLINE:
- case S2_OFFLINE:
- case S2_CONFIGINTERFACE:
- break;
- case S2_GETSTATIONADDRESS:
- memcpy(ios2->ios2_SrcAddr, macaddr, sizeof(macaddr));
- memcpy(ios2->ios2_DstAddr, macaddr, sizeof(macaddr));
- break;
- case S2_DEVICEQUERY:
- device_query(ios2);
- break;
-
- case S2_ONEVENT:
- case S2_TRACKTYPE:
- case S2_UNTRACKTYPE:
- case S2_GETTYPESTATS:
- case S2_READORPHAN:
- case S2_GETGLOBALSTATS:
- case S2_GETSPECIALSTATS:
- break;
-
- default:
- ios2->ios2_Req.io_Error = IOERR_NOCMD;
- ios2->ios2_WireError = S2WERR_GENERIC_ERROR;
- break;
- }
-
- if (ios2)
- {
- if (ios2->ios2_Req.io_Flags & SANA2IOF_QUICK)
- ios2->ios2_Req.io_Message.mn_Node.ln_Type = NT_MESSAGE;
- else
- ReplyMsg(&ios2->ios2_Req.io_Message);
- }
-}
-
-static void remove_from_list(struct List *list, struct Node *node)
-{
- for (struct Node *n = list->lh_Head; n->ln_Succ; n = n->ln_Succ)
- {
- if (n == node)
- {
- Remove(n);
- return;
- }
- }
-}
-
-static ULONG abort_io(__reg("a6") struct Library *dev, __reg("a1") struct IOSana2Req *ios2)
-{
- Forbid();
- remove_from_list((struct List *)&ut_rbuf_list, &ios2->ios2_Req.io_Message.mn_Node);
- remove_from_list((struct List *)&ut_wbuf_list, &ios2->ios2_Req.io_Message.mn_Node);
- Permit();
-
- ios2->ios2_Req.io_Error = IOERR_ABORTED;
- ios2->ios2_WireError = 0;
- ReplyMsg(&ios2->ios2_Req.io_Message);
-
- return 0;
-}
-
-static ULONG device_vectors[] =
-{
- (ULONG)open,
- (ULONG)close,
- (ULONG)expunge,
- 0,
- (ULONG)begin_io,
- (ULONG)abort_io,
- -1,
-};
-
-ULONG auto_init_tables[] =
-{
- sizeof(struct Library),
- (ULONG)device_vectors,
- 0,
- (ULONG)init_device,
-};
projects / pistorm / commitdiff