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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/isdn/hardware/eicon/diddfunc.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/isdn/hardware/eicon/diddfunc.c')
-rw-r--r-- | drivers/isdn/hardware/eicon/diddfunc.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/eicon/diddfunc.c b/drivers/isdn/hardware/eicon/diddfunc.c new file mode 100644 index 000000000000..3029234178d8 --- /dev/null +++ b/drivers/isdn/hardware/eicon/diddfunc.c @@ -0,0 +1,115 @@ +/* $Id: diddfunc.c,v 1.14.6.2 2004/08/28 20:03:53 armin Exp $ + * + * DIDD Interface module for Eicon active cards. + * + * Functions are in dadapter.c + * + * Copyright 2002-2003 by Armin Schindler (mac@melware.de) + * Copyright 2002-2003 Cytronics & Melware (info@melware.de) + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + */ + +#include "platform.h" +#include "di_defs.h" +#include "dadapter.h" +#include "divasync.h" + +#define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR) +#define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG) + + +extern void DIVA_DIDD_Read(void *, int); +extern char *DRIVERRELEASE_DIDD; +static dword notify_handle; +static DESCRIPTOR _DAdapter; + +/* + * didd callback function + */ +static void *didd_callback(void *context, DESCRIPTOR * adapter, + int removal) +{ + if (adapter->type == IDI_DADAPTER) { + DBG_ERR(("Notification about IDI_DADAPTER change ! Oops.")) + return (NULL); + } else if (adapter->type == IDI_DIMAINT) { + if (removal) { + DbgDeregister(); + } else { + DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT); + } + } + return (NULL); +} + +/* + * connect to didd + */ +static int DIVA_INIT_FUNCTION connect_didd(void) +{ + int x = 0; + int dadapter = 0; + IDI_SYNC_REQ req; + DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; + + DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); + + for (x = 0; x < MAX_DESCRIPTORS; x++) { + if (DIDD_Table[x].type == IDI_DADAPTER) { /* DADAPTER found */ + dadapter = 1; + memcpy(&_DAdapter, &DIDD_Table[x], sizeof(_DAdapter)); + req.didd_notify.e.Req = 0; + req.didd_notify.e.Rc = + IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY; + req.didd_notify.info.callback = (void *)didd_callback; + req.didd_notify.info.context = NULL; + _DAdapter.request((ENTITY *) & req); + if (req.didd_notify.e.Rc != 0xff) + return (0); + notify_handle = req.didd_notify.info.handle; + } else if (DIDD_Table[x].type == IDI_DIMAINT) { /* MAINT found */ + DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT); + } + } + return (dadapter); +} + +/* + * disconnect from didd + */ +static void DIVA_EXIT_FUNCTION disconnect_didd(void) +{ + IDI_SYNC_REQ req; + + req.didd_notify.e.Req = 0; + req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY; + req.didd_notify.info.handle = notify_handle; + _DAdapter.request((ENTITY *) & req); +} + +/* + * init + */ +int DIVA_INIT_FUNCTION diddfunc_init(void) +{ + diva_didd_load_time_init(); + + if (!connect_didd()) { + DBG_ERR(("init: failed to connect to DIDD.")) + diva_didd_load_time_finit(); + return (0); + } + return (1); +} + +/* + * finit + */ +void DIVA_EXIT_FUNCTION diddfunc_finit(void) +{ + DbgDeregister(); + disconnect_didd(); + diva_didd_load_time_finit(); +} |