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This file will be included from the auto-generated drv_cfg.c files. Under UnixWare and OpenServer this will will be compiled during the initial build of OSS (in the development system).
This file is part of Open Sound System.
Copyright (C) 4Front Technologies 1996-2008.
This this source file is released under GPL v2 license (no other versions). See the COPYING file included in the main directory of this source distribution for the license terms and conditions.
#include <errno.h> static int ossdrv_config (cfg_func_t func, void *idata, rm_key_t key); #if DRIVER_TYPE==DRV_VIRTUAL || DRIVER_TYPE==DRV_VMIX oss_device_t *osdev = NULL; #endif
Driver information structures, for drv_attach().
static const drvops_t oss_ops = {
ossdrv_config,
oss_open,
oss_close,
oss_devinfo,
oss_biostart,
oss_ioctl,
NULL, /* drvctl */
NULL /* mmap */
};
static const drvinfo_t oss_drvinfo = {
&oss_ops,
DRIVER_NICK,
D_MP, /* MP-safe */
NULL, /* Not a STREAMS driver */
256 /* Must match $maxchan in Node file */
};
static int
rd_hex (char *s)
{
Convert a 4 digit hexadecimal string to integer value
int v = 0;
int i;
for (i = 0; i < 4; i++)
{
char c = *s++;
if (c >= '0' && c <= '9')
{
v = (v << 4) | (c - '0');
continue;
}
if (c >= 'A' && c <= 'F')
{
v = (v << 4) | (c - 'A' + 10);
continue;
}
if (c >= 'a' && c <= 'f')
{
v = (v << 4) | (c - 'a' + 10);
continue;
}
}
return v;
}
static int
cfg_add (void *idata, rm_key_t key)
{
int err;
cm_args_t cma;
cm_num_t btype;
char id[32];
int vendor, product;
static int instance = 0;
oss_device_t *osdev;
cm_begin_trans (key, RM_READ);
cma.cm_key = key;
cma.cm_param = CM_BRDBUSTYPE;
cma.cm_val = &btype;
cma.cm_vallen = sizeof (btype);
cma.cm_n = 0;
err = cm_getval (&cma);
cm_end_trans (key);
if (err != 0 || btype != CM_BUS_PCI)
{
cmn_err (CE_WARN, "Bad BUS type %d\n", btype);
return ENODEV;
}
if ((osdev =
osdev_create (&key, DRIVER_TYPE, instance, DRIVER_NICK, NULL)) == NULL)
{
return EIO;
}
cm_begin_trans (key, RM_READ);
cma.cm_key = key;
cma.cm_param = CM_BRDID;
cma.cm_val = id;
cma.cm_vallen = sizeof (id);
cma.cm_n = 0;
err = cm_getval (&cma);
cm_end_trans (key);
vendor = rd_hex (id + 2);
product = rd_hex (id + 6);
osdev->vendor = vendor;
osdev->product = product;
osdev->drvinfo = (drvinfo_t *) & oss_drvinfo;
osdev->key = key;
if (!DRIVER_ATTACH (osdev))
{
cmn_err (CE_WARN, "Attach failed\n");
osdev_delete (osdev);
return EIO;
}
*(void **) idata = osdev;
oss_audio_delayed_attach ();
instance++;
return 0;
}
static int
cfg_remove (void *idata)
{
oss_device_t *osdev = idata;
if (idata == NULL)
{
cmn_err (CE_WARN, DRIVER_NICK ": ossdrv_detach: dip==NULL\n");
return EIO;
}
if (osdev == NULL)
{
cmn_err (CE_WARN, DRIVER_NICK ": Bad idatata\n");
return 0;
}
if (DRIVER_DETACH (osdev) <= 0)
{
DDB (cmn_err (CE_WARN, "Driver busy - cannot detach\n"));
return EBUSY;
}
osdev_delete (osdev);
DDB (cmn_err (CE_CONT, "Detach done " DRIVER_NICK, "\n"));
return 0;
}
#if DRIVER_TYPE==DRV_VIRTUAL || DRIVER_TYPE==DRV_VMIX
static int
attach_virtual (void)
{
DDB (cmn_err (CE_CONT, "Attach started " DRIVER_NICK "\n"));
if ((osdev =
osdev_create (NULL, DRIVER_TYPE, 0, DRIVER_NICK, NULL)) == NULL)
{
return EIO;
}
osdev->drvinfo = &oss_drvinfo;
if (!DRIVER_ATTACH (osdev))
{
cmn_err (CE_WARN, "Attach failed\n");
osdev_delete (osdev);
return EIO;
}
return 0;
}
static int
detach_virtual (void)
{
if (osdev == NULL)
{
return 0;
}
if (DRIVER_DETACH (osdev) <= 0)
{
DDB (cmn_err (CE_WARN, "Driver busy - cannot detach\n"));
return EBUSY;
}
osdev_delete (osdev);
return 0;
}
#endif
static int
ossdrv_config (cfg_func_t func, void *idata, rm_key_t key)
{
switch (func)
{
case CFG_ADD:
return cfg_add (idata, key);
break;
case CFG_REMOVE:
return cfg_remove (idata);
break;
case CFG_VERIFY:
return 0;
break;
}
return EOPNOTSUPP;
}
Driver entry point routines
int
_load ()
{
int err;
if ((err = drv_attach (&oss_drvinfo)) != 0)
{
cmn_err (CE_WARN, "drv_attach failed %d\n", err);
return err;
}
#if DRIVER_TYPE==DRV_VIRTUAL || DRIVER_TYPE==DRV_VMIX
attach_virtual ();
#endif
return 0;
}
int
_unload ()
{
extern volatile int oss_open_devices;
if (oss_open_devices > 0)
return EBUSY;
#if DRIVER_TYPE==DRV_VIRTUAL || DRIVER_TYPE==DRV_VMIX
detach_virtual ();
#endif
drv_detach (&oss_drvinfo);
return 0;
}