/**
* Attach entry point, to attach a device to the system or resume it.
*
* @param pDip The module structure instance.
* @param enmCmd Attach type (ddi_attach_cmd_t)
*
* @returns corresponding solaris error code.
*/
static int VBoxUSBMonSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd)
{
LogFunc((DEVICE_NAME ": VBoxUSBMonSolarisAttach: pDip=%p enmCmd=%d\n", pDip, enmCmd));
switch (enmCmd)
{
case DDI_ATTACH:
{
if (RT_UNLIKELY(g_pDip))
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisAttach: Global instance already initialized\n"));
return DDI_FAILURE;
}
g_pDip = pDip;
int instance = ddi_get_instance(pDip);
int rc = ddi_create_priv_minor_node(pDip, DEVICE_NAME, S_IFCHR, instance, DDI_PSEUDO, 0,
"none", "none", 0660);
if (rc == DDI_SUCCESS)
{
rc = usb_register_dev_driver(g_pDip, VBoxUSBMonSolarisElectDriver);
if (rc == DDI_SUCCESS)
{
ddi_report_dev(pDip);
return DDI_SUCCESS;
}
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisAttach: Failed to register driver election callback! rc=%d\n", rc));
}
else
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisAttach: ddi_create_minor_node failed! rc=%d\n", rc));
return DDI_FAILURE;
}
case DDI_RESUME:
{
/* We don't have to bother about power management. */
return DDI_SUCCESS;
}
default:
return DDI_FAILURE;
}
}
static int VBoxUSBMonSolarisOpen(dev_t *pDev, int fFlag, int fType, cred_t *pCred)
{
vboxusbmon_state_t *pState = NULL;
unsigned iOpenInstance;
LogFunc((DEVICE_NAME ":VBoxUSBMonSolarisOpen\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
/*
* Verify that we're called after attach.
*/
if (!g_pDip)
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisOpen invalid state for opening.\n"));
return ENXIO;
}
mutex_enter(&g_VBoxUSBMonSolarisMtx);
if (!g_cVBoxUSBMonSolarisClient)
{
mutex_exit(&g_VBoxUSBMonSolarisMtx);
int rc = usb_register_dev_driver(g_pDip, VBoxUSBMonSolarisElectDriver);
if (RT_UNLIKELY(rc != DDI_SUCCESS))
{
LogRel((DEVICE_NAME ":Failed to register driver election callback with USBA rc=%d\n", rc));
return EINVAL;
}
Log((DEVICE_NAME ":Successfully registered election callback with USBA\n"));
mutex_enter(&g_VBoxUSBMonSolarisMtx);
}
g_cVBoxUSBMonSolarisClient++;
mutex_exit(&g_VBoxUSBMonSolarisMtx);
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pVBoxUSBMonSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
LogRel((DEVICE_NAME ":VBoxUSBMonSolarisOpen: too many open instances."));
mutex_enter(&g_VBoxUSBMonSolarisMtx);
g_cVBoxUSBMonSolarisClient--;
mutex_exit(&g_VBoxUSBMonSolarisMtx);
return ENXIO;
}
pState->Process = RTProcSelf();
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
NOREF(fFlag);
NOREF(pCred);
return 0;
}
