/**
* rio_device_remove - Remove a RIO device from the system
*
* @dev: the RIO device structure to match against
*
* Remove a RIO device from the system. If it has an associated
* driver, then run the driver remove() method. Then update
* the reference count.
*/
static int rio_device_remove(struct device *dev)
{
struct rio_dev *rdev = to_rio_dev(dev);
struct rio_driver *rdrv = rdev->driver;
if (rdrv) {
if (rdrv->remove)
rdrv->remove(rdev);
rdev->driver = NULL;
}
rio_dev_put(rdev);
return 0;
}
static int rio_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct rio_dev *rdev;
if (!dev)
return -ENODEV;
rdev = to_rio_dev(dev);
if (!rdev)
return -ENODEV;
if (add_uevent_var(env, "MODALIAS=rapidio:v%04Xd%04Xav%04Xad%04X",
rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did))
return -ENOMEM;
return 0;
}
/**
* rio_match_bus - Tell if a RIO device structure has a matching RIO driver device id structure
* @dev: the standard device structure to match against
* @drv: the standard driver structure containing the ids to match against
*
* Used by a driver to check whether a RIO device present in the
* system is in its list of supported devices. Returns 1 if
* there is a matching &struct rio_device_id or 0 if there is
* no match.
*/
static int rio_match_bus(struct device *dev, struct device_driver *drv)
{
struct rio_dev *rdev = to_rio_dev(dev);
struct rio_driver *rdrv = to_rio_driver(drv);
const struct rio_device_id *id = rdrv->id_table;
const struct rio_device_id *found_id;
if (!id)
goto out;
found_id = rio_match_device(id, rdev);
if (found_id)
return 1;
out:return 0;
}
static ssize_t
idtg2_show_errlog(struct device *dev, struct device_attribute *attr, char *buf)
{
struct rio_dev *rdev = to_rio_dev(dev);
ssize_t len = 0;
u32 regval;
while (!rio_read_config_32(rdev, IDT_ERR_RD, ®val)) {
if (!regval) /* 0 = end of log */
break;
len += snprintf(buf + len, PAGE_SIZE - len,
"%08x\n", regval);
if (len >= (PAGE_SIZE - 10))
break;
}
return len;
}
/**
* rio_device_probe - Tell if a RIO device structure has a matching RIO device id structure
* @id: the RIO device id structure to match against
* @dev: the RIO device structure to match against
*
* return 0 and set rio_dev->driver when drv claims rio_dev, else error
*/
static int rio_device_probe(struct device *dev)
{
struct rio_driver *rdrv = to_rio_driver(dev->driver);
struct rio_dev *rdev = to_rio_dev(dev);
int error = -ENODEV;
const struct rio_device_id *id;
if (!rdev->driver && rdrv->probe) {
if (!rdrv->id_table)
return error;
id = rio_match_device(rdrv->id_table, rdev);
rio_dev_get(rdev);
if (id)
error = rdrv->probe(rdev, id);
if (error >= 0) {
rdev->driver = rdrv;
error = 0;
rio_dev_put(rdev);
}
}
return error;
}
static ssize_t
idtg2_show_errlog(struct device *dev, struct device_attribute *attr, char *buf)
{
struct rio_dev *rdev = to_rio_dev(dev);
struct rio_mport *mport = rdev->net->hport;
u16 destid = rdev->rswitch->destid;
u8 hopcount = rdev->rswitch->hopcount;
ssize_t len = 0;
u32 regval;
while (!rio_mport_read_config_32(mport, destid, hopcount,
IDT_ERR_RD, ®val)) {
if (!regval) /* 0 = end of log */
break;
len += snprintf(buf + len, PAGE_SIZE - len,
"%08x\n", regval);
if (len >= (PAGE_SIZE - 10))
break;
}
return len;
}
