isdn: whitespace coding style cleanup
isdn source code uses a not-current coding style.
Update the coding style used on a per-line basis
so that git diff -w shows only elided blank lines
at EOF.
Done with emacs and some scripts and some typing.
Built x86 allyesconfig.
No detected change in objdump -d or size.
Signed-off-by: Joe Perches <joe@perches.com>
diff --git a/drivers/isdn/hardware/eicon/dadapter.c b/drivers/isdn/hardware/eicon/dadapter.c
index 8949789..5142099 100644
--- a/drivers/isdn/hardware/eicon/dadapter.c
+++ b/drivers/isdn/hardware/eicon/dadapter.c
@@ -1,26 +1,25 @@
-
/*
*
- Copyright (c) Eicon Networks, 2002.
+ Copyright (c) Eicon Networks, 2002.
*
- This source file is supplied for the use with
- Eicon Networks range of DIVA Server Adapters.
+ This source file is supplied for the use with
+ Eicon Networks range of DIVA Server Adapters.
*
- Eicon File Revision : 2.1
+ Eicon File Revision : 2.1
*
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
*
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
- implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
*
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "platform.h"
@@ -30,337 +29,336 @@
#include "divasync.h"
#include "dadapter.h"
/* --------------------------------------------------------------------------
- Adapter array change notification framework
+ Adapter array change notification framework
-------------------------------------------------------------------------- */
typedef struct _didd_adapter_change_notification {
- didd_adapter_change_callback_t callback;
- void IDI_CALL_ENTITY_T * context;
-} didd_adapter_change_notification_t, \
- * IDI_CALL_ENTITY_T pdidd_adapter_change_notification_t;
+ didd_adapter_change_callback_t callback;
+ void IDI_CALL_ENTITY_T *context;
+} didd_adapter_change_notification_t, \
+ * IDI_CALL_ENTITY_T pdidd_adapter_change_notification_t;
#define DIVA_DIDD_MAX_NOTIFICATIONS 256
-static didd_adapter_change_notification_t\
- NotificationTable[DIVA_DIDD_MAX_NOTIFICATIONS];
+static didd_adapter_change_notification_t \
+NotificationTable[DIVA_DIDD_MAX_NOTIFICATIONS];
/* --------------------------------------------------------------------------
- Array to held adapter information
+ Array to held adapter information
-------------------------------------------------------------------------- */
static DESCRIPTOR HandleTable[NEW_MAX_DESCRIPTORS];
static dword Adapters = 0; /* Number of adapters */
/* --------------------------------------------------------------------------
- Shadow IDI_DIMAINT
- and 'shadow' debug stuff
+ Shadow IDI_DIMAINT
+ and 'shadow' debug stuff
-------------------------------------------------------------------------- */
-static void no_printf (unsigned char * format, ...)
+static void no_printf(unsigned char *format, ...)
{
#ifdef EBUG
va_list ap;
- va_start (ap, format);
+ va_start(ap, format);
debug((format, ap));
- va_end (ap);
+ va_end(ap);
#endif
}
/* -------------------------------------------------------------------------
- Portable debug Library
- ------------------------------------------------------------------------- */
+ Portable debug Library
+ ------------------------------------------------------------------------- */
#include "debuglib.c"
-
+
static DESCRIPTOR MAdapter = {IDI_DIMAINT, /* Adapter Type */
- 0x00, /* Channels */
- 0x0000, /* Features */
- (IDI_CALL)no_printf};
+ 0x00, /* Channels */
+ 0x0000, /* Features */
+ (IDI_CALL)no_printf};
/* --------------------------------------------------------------------------
- DAdapter. Only IDI clients with buffer, that is huge enough to
- get all descriptors will receive information about DAdapter
- { byte type, byte channels, word features, IDI_CALL request }
+ DAdapter. Only IDI clients with buffer, that is huge enough to
+ get all descriptors will receive information about DAdapter
+ { byte type, byte channels, word features, IDI_CALL request }
-------------------------------------------------------------------------- */
-static void IDI_CALL_LINK_T diva_dadapter_request (ENTITY IDI_CALL_ENTITY_T *);
+static void IDI_CALL_LINK_T diva_dadapter_request(ENTITY IDI_CALL_ENTITY_T *);
static DESCRIPTOR DAdapter = {IDI_DADAPTER, /* Adapter Type */
- 0x00, /* Channels */
- 0x0000, /* Features */
- diva_dadapter_request };
+ 0x00, /* Channels */
+ 0x0000, /* Features */
+ diva_dadapter_request };
/* --------------------------------------------------------------------------
- LOCALS
+ LOCALS
-------------------------------------------------------------------------- */
-static dword diva_register_adapter_callback (\
- didd_adapter_change_callback_t callback,
- void IDI_CALL_ENTITY_T* context);
-static void diva_remove_adapter_callback (dword handle);
-static void diva_notify_adapter_change (DESCRIPTOR* d, int removal);
+static dword diva_register_adapter_callback(\
+ didd_adapter_change_callback_t callback,
+ void IDI_CALL_ENTITY_T *context);
+static void diva_remove_adapter_callback(dword handle);
+static void diva_notify_adapter_change(DESCRIPTOR *d, int removal);
static diva_os_spin_lock_t didd_spin;
/* --------------------------------------------------------------------------
- Should be called as first step, after driver init
- -------------------------------------------------------------------------- */
-void diva_didd_load_time_init (void) {
- memset (&HandleTable[0], 0x00, sizeof(HandleTable));
- memset (&NotificationTable[0], 0x00, sizeof(NotificationTable));
- diva_os_initialize_spin_lock (&didd_spin, "didd");
-}
-/* --------------------------------------------------------------------------
- Should be called as last step, if driver does unload
- -------------------------------------------------------------------------- */
-void diva_didd_load_time_finit (void) {
- diva_os_destroy_spin_lock (&didd_spin, "didd");
-}
-/* --------------------------------------------------------------------------
- Called in order to register new adapter in adapter array
- return adapter handle (> 0) on success
- return -1 adapter array overflow
- -------------------------------------------------------------------------- */
-static int diva_didd_add_descriptor (DESCRIPTOR* d) {
- diva_os_spin_lock_magic_t irql;
- int i;
- if (d->type == IDI_DIMAINT) {
- if (d->request) {
- MAdapter.request = d->request;
- dprintf = (DIVA_DI_PRINTF)d->request;
- diva_notify_adapter_change (&MAdapter, 0); /* Inserted */
- DBG_TRC (("DIMAINT registered, dprintf=%08x", d->request))
- } else {
- DBG_TRC (("DIMAINT removed"))
- diva_notify_adapter_change (&MAdapter, 1); /* About to remove */
- MAdapter.request = (IDI_CALL)no_printf;
- dprintf = no_printf;
- }
- return (NEW_MAX_DESCRIPTORS);
- }
- for (i = 0; i < NEW_MAX_DESCRIPTORS; i++) {
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_add");
- if (HandleTable[i].type == 0) {
- memcpy (&HandleTable[i], d, sizeof(*d));
- Adapters++;
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_add");
- diva_notify_adapter_change (d, 0); /* we have new adapter */
- DBG_TRC (("Add adapter[%d], request=%08x", (i+1), d->request))
- return (i+1);
- }
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_add");
- }
- DBG_ERR (("Can't add adapter, out of resources"))
- return (-1);
-}
-/* --------------------------------------------------------------------------
- Called in order to remove one registered adapter from array
- return adapter handle (> 0) on success
- return 0 on success
- -------------------------------------------------------------------------- */
-static int diva_didd_remove_descriptor (IDI_CALL request) {
- diva_os_spin_lock_magic_t irql;
- int i;
- if (request == MAdapter.request) {
- DBG_TRC(("DIMAINT removed"))
- dprintf = no_printf;
- diva_notify_adapter_change (&MAdapter, 1); /* About to remove */
- MAdapter.request = (IDI_CALL)no_printf;
- return (0);
- }
- for (i = 0; (Adapters && (i < NEW_MAX_DESCRIPTORS)); i++) {
- if (HandleTable[i].request == request) {
- diva_notify_adapter_change (&HandleTable[i], 1); /* About to remove */
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_rm");
- memset (&HandleTable[i], 0x00, sizeof(HandleTable[0]));
- Adapters--;
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_rm");
- DBG_TRC (("Remove adapter[%d], request=%08x", (i+1), request))
- return (0);
- }
- }
- DBG_ERR (("Invalid request=%08x, can't remove adapter", request))
- return (-1);
-}
-/* --------------------------------------------------------------------------
- Read adapter array
- return 1 if not enough space to save all available adapters
+ Should be called as first step, after driver init
-------------------------------------------------------------------------- */
-static int diva_didd_read_adapter_array (DESCRIPTOR* buffer, int length) {
- diva_os_spin_lock_magic_t irql;
- int src, dst;
- memset (buffer, 0x00, length);
- length /= sizeof(DESCRIPTOR);
- DBG_TRC (("DIDD_Read, space = %d, Adapters = %d", length, Adapters+2))
-
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_read");
- for (src = 0, dst = 0;
- (Adapters && (src < NEW_MAX_DESCRIPTORS) && (dst < length));
- src++) {
- if (HandleTable[src].type) {
- memcpy (&buffer[dst], &HandleTable[src], sizeof(DESCRIPTOR));
- dst++;
- }
- }
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_read");
- if (dst < length) {
- memcpy (&buffer[dst], &MAdapter, sizeof(DESCRIPTOR));
- dst++;
- } else {
- DBG_ERR (("Can't write DIMAINT. Array too small"))
- }
- if (dst < length) {
- memcpy (&buffer[dst], &DAdapter, sizeof(DESCRIPTOR));
- dst++;
- } else {
- DBG_ERR (("Can't write DADAPTER. Array too small"))
- }
- DBG_TRC (("Read %d adapters", dst))
- return (dst == length);
+void diva_didd_load_time_init(void) {
+ memset(&HandleTable[0], 0x00, sizeof(HandleTable));
+ memset(&NotificationTable[0], 0x00, sizeof(NotificationTable));
+ diva_os_initialize_spin_lock(&didd_spin, "didd");
}
/* --------------------------------------------------------------------------
- DAdapter request function.
- This function does process only synchronous requests, and is used
- for reception/registration of new interfaces
+ Should be called as last step, if driver does unload
-------------------------------------------------------------------------- */
-static void IDI_CALL_LINK_T diva_dadapter_request (\
- ENTITY IDI_CALL_ENTITY_T *e) {
- IDI_SYNC_REQ *syncReq = (IDI_SYNC_REQ *)e ;
- if (e->Req) { /* We do not process it, also return error */
- e->Rc = OUT_OF_RESOURCES;
- DBG_ERR (("Can't process async request, Req=%02x", e->Req))
- return;
- }
- /*
- So, we process sync request
- */
- switch (e->Rc) {
- case IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY: {
- diva_didd_adapter_notify_t* pinfo = &syncReq->didd_notify.info;
- pinfo->handle = diva_register_adapter_callback (\
- (didd_adapter_change_callback_t)pinfo->callback,
- (void IDI_CALL_ENTITY_T *)pinfo->context);
- e->Rc = 0xff;
- } break;
- case IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY: {
- diva_didd_adapter_notify_t* pinfo = &syncReq->didd_notify.info;
- diva_remove_adapter_callback (pinfo->handle);
- e->Rc = 0xff;
- } break;
- case IDI_SYNC_REQ_DIDD_ADD_ADAPTER: {
- diva_didd_add_adapter_t* pinfo = &syncReq->didd_add_adapter.info;
- if (diva_didd_add_descriptor ((DESCRIPTOR*)pinfo->descriptor) < 0) {
- e->Rc = OUT_OF_RESOURCES;
- } else {
- e->Rc = 0xff;
- }
- } break;
- case IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER: {
- diva_didd_remove_adapter_t* pinfo = &syncReq->didd_remove_adapter.info;
- if (diva_didd_remove_descriptor ((IDI_CALL)pinfo->p_request) < 0) {
- e->Rc = OUT_OF_RESOURCES;
- } else {
- e->Rc = 0xff;
- }
- } break;
- case IDI_SYNC_REQ_DIDD_READ_ADAPTER_ARRAY: {
- diva_didd_read_adapter_array_t* pinfo =\
- &syncReq->didd_read_adapter_array.info;
- if (diva_didd_read_adapter_array ((DESCRIPTOR*)pinfo->buffer,
- (int)pinfo->length)) {
- e->Rc = OUT_OF_RESOURCES;
- } else {
- e->Rc = 0xff;
- }
- } break;
- default:
- DBG_ERR (("Can't process sync request, Req=%02x", e->Rc))
- e->Rc = OUT_OF_RESOURCES;
- }
+void diva_didd_load_time_finit(void) {
+ diva_os_destroy_spin_lock(&didd_spin, "didd");
}
/* --------------------------------------------------------------------------
- IDI client does register his notification function
- -------------------------------------------------------------------------- */
-static dword diva_register_adapter_callback (\
- didd_adapter_change_callback_t callback,
- void IDI_CALL_ENTITY_T* context) {
- diva_os_spin_lock_magic_t irql;
- dword i;
-
- for (i = 0; i < DIVA_DIDD_MAX_NOTIFICATIONS; i++) {
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_nfy_add");
- if (!NotificationTable[i].callback) {
- NotificationTable[i].callback = callback;
- NotificationTable[i].context = context;
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_nfy_add");
- DBG_TRC(("Register adapter notification[%d]=%08x", i+1, callback))
- return (i+1);
- }
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_nfy_add");
- }
- DBG_ERR (("Can't register adapter notification, overflow"))
- return (0);
+ Called in order to register new adapter in adapter array
+ return adapter handle (> 0) on success
+ return -1 adapter array overflow
+ -------------------------------------------------------------------------- */
+static int diva_didd_add_descriptor(DESCRIPTOR *d) {
+ diva_os_spin_lock_magic_t irql;
+ int i;
+ if (d->type == IDI_DIMAINT) {
+ if (d->request) {
+ MAdapter.request = d->request;
+ dprintf = (DIVA_DI_PRINTF)d->request;
+ diva_notify_adapter_change(&MAdapter, 0); /* Inserted */
+ DBG_TRC(("DIMAINT registered, dprintf=%08x", d->request))
+ } else {
+ DBG_TRC(("DIMAINT removed"))
+ diva_notify_adapter_change(&MAdapter, 1); /* About to remove */
+ MAdapter.request = (IDI_CALL)no_printf;
+ dprintf = no_printf;
+ }
+ return (NEW_MAX_DESCRIPTORS);
+ }
+ for (i = 0; i < NEW_MAX_DESCRIPTORS; i++) {
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_add");
+ if (HandleTable[i].type == 0) {
+ memcpy(&HandleTable[i], d, sizeof(*d));
+ Adapters++;
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_add");
+ diva_notify_adapter_change(d, 0); /* we have new adapter */
+ DBG_TRC(("Add adapter[%d], request=%08x", (i + 1), d->request))
+ return (i + 1);
+ }
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_add");
+ }
+ DBG_ERR(("Can't add adapter, out of resources"))
+ return (-1);
}
/* --------------------------------------------------------------------------
- IDI client does register his notification function
- -------------------------------------------------------------------------- */
-static void diva_remove_adapter_callback (dword handle) {
- diva_os_spin_lock_magic_t irql;
- if (handle && ((--handle) < DIVA_DIDD_MAX_NOTIFICATIONS)) {
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_nfy_rm");
- NotificationTable[handle].callback = NULL;
- NotificationTable[handle].context = NULL;
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_nfy_rm");
- DBG_TRC(("Remove adapter notification[%d]", (int)(handle+1)))
- return;
- }
- DBG_ERR(("Can't remove adapter notification, handle=%d", handle))
+ Called in order to remove one registered adapter from array
+ return adapter handle (> 0) on success
+ return 0 on success
+ -------------------------------------------------------------------------- */
+static int diva_didd_remove_descriptor(IDI_CALL request) {
+ diva_os_spin_lock_magic_t irql;
+ int i;
+ if (request == MAdapter.request) {
+ DBG_TRC(("DIMAINT removed"))
+ dprintf = no_printf;
+ diva_notify_adapter_change(&MAdapter, 1); /* About to remove */
+ MAdapter.request = (IDI_CALL)no_printf;
+ return (0);
+ }
+ for (i = 0; (Adapters && (i < NEW_MAX_DESCRIPTORS)); i++) {
+ if (HandleTable[i].request == request) {
+ diva_notify_adapter_change(&HandleTable[i], 1); /* About to remove */
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_rm");
+ memset(&HandleTable[i], 0x00, sizeof(HandleTable[0]));
+ Adapters--;
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_rm");
+ DBG_TRC(("Remove adapter[%d], request=%08x", (i + 1), request))
+ return (0);
+ }
+ }
+ DBG_ERR(("Invalid request=%08x, can't remove adapter", request))
+ return (-1);
}
/* --------------------------------------------------------------------------
- Notify all client about adapter array change
- Does suppose following behavior in the client side:
- Step 1: Redister Notification
- Step 2: Read Adapter Array
- -------------------------------------------------------------------------- */
-static void diva_notify_adapter_change (DESCRIPTOR* d, int removal) {
- int i, do_notify;
- didd_adapter_change_notification_t nfy;
- diva_os_spin_lock_magic_t irql;
- for (i = 0; i < DIVA_DIDD_MAX_NOTIFICATIONS; i++) {
- do_notify = 0;
- diva_os_enter_spin_lock (&didd_spin, &irql, "didd_nfy");
- if (NotificationTable[i].callback) {
- memcpy (&nfy, &NotificationTable[i], sizeof(nfy));
- do_notify = 1;
- }
- diva_os_leave_spin_lock (&didd_spin, &irql, "didd_nfy");
- if (do_notify) {
- (*(nfy.callback))(nfy.context, d, removal);
- }
- }
+ Read adapter array
+ return 1 if not enough space to save all available adapters
+ -------------------------------------------------------------------------- */
+static int diva_didd_read_adapter_array(DESCRIPTOR *buffer, int length) {
+ diva_os_spin_lock_magic_t irql;
+ int src, dst;
+ memset(buffer, 0x00, length);
+ length /= sizeof(DESCRIPTOR);
+ DBG_TRC(("DIDD_Read, space = %d, Adapters = %d", length, Adapters + 2))
+
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_read");
+ for (src = 0, dst = 0;
+ (Adapters && (src < NEW_MAX_DESCRIPTORS) && (dst < length));
+ src++) {
+ if (HandleTable[src].type) {
+ memcpy(&buffer[dst], &HandleTable[src], sizeof(DESCRIPTOR));
+ dst++;
+ }
+ }
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_read");
+ if (dst < length) {
+ memcpy(&buffer[dst], &MAdapter, sizeof(DESCRIPTOR));
+ dst++;
+ } else {
+ DBG_ERR(("Can't write DIMAINT. Array too small"))
+ }
+ if (dst < length) {
+ memcpy(&buffer[dst], &DAdapter, sizeof(DESCRIPTOR));
+ dst++;
+ } else {
+ DBG_ERR(("Can't write DADAPTER. Array too small"))
+ }
+ DBG_TRC(("Read %d adapters", dst))
+ return (dst == length);
}
/* --------------------------------------------------------------------------
- For all systems, that are linked by Kernel Mode Linker this is ONLY one
- function thet should be exported by this device driver
- IDI clients should look for IDI_DADAPTER, and use request function
- of this adapter (sync request) in order to receive appropriate services:
- - add new adapter
- - remove existing adapter
- - add adapter array notification
- - remove adapter array notification
- (read adapter is redundant in this case)
- INPUT:
+ DAdapter request function.
+ This function does process only synchronous requests, and is used
+ for reception/registration of new interfaces
+ -------------------------------------------------------------------------- */
+static void IDI_CALL_LINK_T diva_dadapter_request( \
+ ENTITY IDI_CALL_ENTITY_T *e) {
+ IDI_SYNC_REQ *syncReq = (IDI_SYNC_REQ *)e;
+ if (e->Req) { /* We do not process it, also return error */
+ e->Rc = OUT_OF_RESOURCES;
+ DBG_ERR(("Can't process async request, Req=%02x", e->Req))
+ return;
+ }
+ /*
+ So, we process sync request
+ */
+ switch (e->Rc) {
+ case IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY: {
+ diva_didd_adapter_notify_t *pinfo = &syncReq->didd_notify.info;
+ pinfo->handle = diva_register_adapter_callback( \
+ (didd_adapter_change_callback_t)pinfo->callback,
+ (void IDI_CALL_ENTITY_T *)pinfo->context);
+ e->Rc = 0xff;
+ } break;
+ case IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY: {
+ diva_didd_adapter_notify_t *pinfo = &syncReq->didd_notify.info;
+ diva_remove_adapter_callback(pinfo->handle);
+ e->Rc = 0xff;
+ } break;
+ case IDI_SYNC_REQ_DIDD_ADD_ADAPTER: {
+ diva_didd_add_adapter_t *pinfo = &syncReq->didd_add_adapter.info;
+ if (diva_didd_add_descriptor((DESCRIPTOR *)pinfo->descriptor) < 0) {
+ e->Rc = OUT_OF_RESOURCES;
+ } else {
+ e->Rc = 0xff;
+ }
+ } break;
+ case IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER: {
+ diva_didd_remove_adapter_t *pinfo = &syncReq->didd_remove_adapter.info;
+ if (diva_didd_remove_descriptor((IDI_CALL)pinfo->p_request) < 0) {
+ e->Rc = OUT_OF_RESOURCES;
+ } else {
+ e->Rc = 0xff;
+ }
+ } break;
+ case IDI_SYNC_REQ_DIDD_READ_ADAPTER_ARRAY: {
+ diva_didd_read_adapter_array_t *pinfo =\
+ &syncReq->didd_read_adapter_array.info;
+ if (diva_didd_read_adapter_array((DESCRIPTOR *)pinfo->buffer,
+ (int)pinfo->length)) {
+ e->Rc = OUT_OF_RESOURCES;
+ } else {
+ e->Rc = 0xff;
+ }
+ } break;
+ default:
+ DBG_ERR(("Can't process sync request, Req=%02x", e->Rc))
+ e->Rc = OUT_OF_RESOURCES;
+ }
+}
+/* --------------------------------------------------------------------------
+ IDI client does register his notification function
+ -------------------------------------------------------------------------- */
+static dword diva_register_adapter_callback( \
+ didd_adapter_change_callback_t callback,
+ void IDI_CALL_ENTITY_T *context) {
+ diva_os_spin_lock_magic_t irql;
+ dword i;
+
+ for (i = 0; i < DIVA_DIDD_MAX_NOTIFICATIONS; i++) {
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_nfy_add");
+ if (!NotificationTable[i].callback) {
+ NotificationTable[i].callback = callback;
+ NotificationTable[i].context = context;
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_nfy_add");
+ DBG_TRC(("Register adapter notification[%d]=%08x", i + 1, callback))
+ return (i + 1);
+ }
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_nfy_add");
+ }
+ DBG_ERR(("Can't register adapter notification, overflow"))
+ return (0);
+}
+/* --------------------------------------------------------------------------
+ IDI client does register his notification function
+ -------------------------------------------------------------------------- */
+static void diva_remove_adapter_callback(dword handle) {
+ diva_os_spin_lock_magic_t irql;
+ if (handle && ((--handle) < DIVA_DIDD_MAX_NOTIFICATIONS)) {
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_nfy_rm");
+ NotificationTable[handle].callback = NULL;
+ NotificationTable[handle].context = NULL;
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_nfy_rm");
+ DBG_TRC(("Remove adapter notification[%d]", (int)(handle + 1)))
+ return;
+ }
+ DBG_ERR(("Can't remove adapter notification, handle=%d", handle))
+ }
+/* --------------------------------------------------------------------------
+ Notify all client about adapter array change
+ Does suppose following behavior in the client side:
+ Step 1: Redister Notification
+ Step 2: Read Adapter Array
+ -------------------------------------------------------------------------- */
+static void diva_notify_adapter_change(DESCRIPTOR *d, int removal) {
+ int i, do_notify;
+ didd_adapter_change_notification_t nfy;
+ diva_os_spin_lock_magic_t irql;
+ for (i = 0; i < DIVA_DIDD_MAX_NOTIFICATIONS; i++) {
+ do_notify = 0;
+ diva_os_enter_spin_lock(&didd_spin, &irql, "didd_nfy");
+ if (NotificationTable[i].callback) {
+ memcpy(&nfy, &NotificationTable[i], sizeof(nfy));
+ do_notify = 1;
+ }
+ diva_os_leave_spin_lock(&didd_spin, &irql, "didd_nfy");
+ if (do_notify) {
+ (*(nfy.callback))(nfy.context, d, removal);
+ }
+ }
+}
+/* --------------------------------------------------------------------------
+ For all systems, that are linked by Kernel Mode Linker this is ONLY one
+ function thet should be exported by this device driver
+ IDI clients should look for IDI_DADAPTER, and use request function
+ of this adapter (sync request) in order to receive appropriate services:
+ - add new adapter
+ - remove existing adapter
+ - add adapter array notification
+ - remove adapter array notification
+ (read adapter is redundant in this case)
+ INPUT:
buffer - pointer to buffer that will receive adapter array
length - length (in bytes) of space in buffer
- OUTPUT:
+ OUTPUT:
Adapter array will be written to memory described by 'buffer'
If the last adapter seen in the returned adapter array is
IDI_DADAPTER or if last adapter in array does have type '0', then
it was enougth space in buffer to accommodate all available
adapter descriptors
- *NOTE 1 (debug interface):
+ *NOTE 1 (debug interface):
The IDI adapter of type 'IDI_DIMAINT' does register as 'request'
famous 'dprintf' function (of type DI_PRINTF, please look
include/debuglib.c and include/debuglib.h) for details.
So dprintf is not exported from module debug module directly,
instead of this IDI_DIMAINT is registered.
Module load order will receive in this case:
- 1. DIDD (this file)
- 2. DIMAINT does load and register 'IDI_DIMAINT', at this step
- DIDD should be able to get 'dprintf', save it, and
- register with DIDD by means of 'dprintf' function.
- 3. any other driver is loaded and is able to access adapter array
- and debug interface
+ 1. DIDD (this file)
+ 2. DIMAINT does load and register 'IDI_DIMAINT', at this step
+ DIDD should be able to get 'dprintf', save it, and
+ register with DIDD by means of 'dprintf' function.
+ 3. any other driver is loaded and is able to access adapter array
+ and debug interface
This approach does allow to load/unload debug interface on demand,
and save memory, it it is necessary.
- -------------------------------------------------------------------------- */
-void IDI_CALL_LINK_T DIVA_DIDD_Read (void IDI_CALL_ENTITY_T * buffer,
- int length) {
- diva_didd_read_adapter_array (buffer, length);
+ -------------------------------------------------------------------------- */
+void IDI_CALL_LINK_T DIVA_DIDD_Read(void IDI_CALL_ENTITY_T *buffer,
+ int length) {
+ diva_didd_read_adapter_array(buffer, length);
}
-