static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev,
struct class_interface *class_intf)
{
struct pcmcia_socket *socket = class_get_devdata(class_dev);
int ret;
socket = pcmcia_get_socket(socket);
if (!socket) {
printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket);
return -ENODEV;
}
/*
* Ugly. But we want to wait for the socket threads to have started up.
* We really should let the drivers themselves drive some of this..
*/
msleep(250);
#ifdef CONFIG_PCMCIA_IOCTL
init_waitqueue_head(&socket->queue);
#endif
INIT_LIST_HEAD(&socket->devices_list);
INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket);
memset(&socket->pcmcia_state, 0, sizeof(u8));
socket->device_count = 0;
ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
if (ret) {
printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket);
pcmcia_put_socket(socket);
return (ret);
}
return 0;
}
static void pcmcia_release_dev(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
ds_dbg(1, "releasing dev %p\n", p_dev);
pcmcia_put_socket(p_dev->socket);
kfree(p_dev->devname);
kfree(p_dev);
}
static void pcmcia_bus_remove_socket(struct class_device *class_dev,
struct class_interface *class_intf)
{
struct pcmcia_socket *socket = class_get_devdata(class_dev);
if (!socket)
return;
socket->pcmcia_state.dead = 1;
pccard_register_pcmcia(socket, NULL);
pcmcia_put_socket(socket);
return;
}
static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
{
struct pcmcia_socket *s = pcmcia_get_socket(skt);
ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
event, priority, skt);
switch (event) {
case CS_EVENT_CARD_REMOVAL:
s->pcmcia_state.present = 0;
pcmcia_card_remove(skt);
handle_event(skt, event);
break;
case CS_EVENT_CARD_INSERTION:
s->pcmcia_state.present = 1;
pcmcia_card_add(skt);
handle_event(skt, event);
break;
case CS_EVENT_EJECTION_REQUEST:
break;
case CS_EVENT_PM_SUSPEND:
case CS_EVENT_PM_RESUME:
case CS_EVENT_RESET_PHYSICAL:
case CS_EVENT_CARD_RESET:
default:
handle_event(skt, event);
break;
}
pcmcia_put_socket(s);
return 0;
} /* ds_event */
struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
{
struct pcmcia_device *p_dev;
unsigned long flags;
int bus_id_len;
s = pcmcia_get_socket(s);
if (!s)
return NULL;
down(&device_add_lock);
/* max of 2 devices per card */
if (s->device_count == 2)
goto err_put;
p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
if (!p_dev)
goto err_put;
p_dev->socket = s;
p_dev->device_no = (s->device_count++);
p_dev->func = function;
p_dev->dev.bus = &pcmcia_bus_type;
p_dev->dev.parent = s->dev.dev;
p_dev->dev.release = pcmcia_release_dev;
bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
if (!p_dev->devname)
goto err_free;
sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
/* compat */
p_dev->state = CLIENT_UNBOUND;
/* Add to the list in pcmcia_bus_socket */
spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
list_add_tail(&p_dev->socket_device_list, &s->devices_list);
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
printk(KERN_NOTICE "pcmcia: registering new device %s\n",
p_dev->devname);
pcmcia_device_query(p_dev);
if (device_register(&p_dev->dev)) {
spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
list_del(&p_dev->socket_device_list);
spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
goto err_free;
}
up(&device_add_lock);
return p_dev;
err_free:
kfree(p_dev->devname);
kfree(p_dev);
s->device_count--;
err_put:
up(&device_add_lock);
pcmcia_put_socket(s);
return NULL;
}
static void pcmcia_release_bus_socket(struct kref *refcount)
{
struct pcmcia_bus_socket *s = container_of(refcount, struct pcmcia_bus_socket, refcount);
pcmcia_put_socket(s->parent);
kfree(s);
}