spinlock_t pcmcia_dev_list_lock;
-static int unbind_request(struct pcmcia_socket *s);
-
/*====================================================================*/
/* code which was in cs.c before */
unsigned int i;
u32 hash;
- if (!p_drv->attach || !p_drv->event || !p_drv->detach)
+ if (!p_drv->probe || !p_drv->remove)
printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
"function\n", p_drv->drv.name);
if (fw->size >= CISTPL_MAX_CIS_SIZE)
goto release;
- cis = kmalloc(sizeof(cisdump_t), GFP_KERNEL);
+ cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
if (!cis)
goto release;
- memset(cis, 0, sizeof(cisdump_t));
-
cis->Length = fw->size + 1;
memcpy(cis->Data, fw->data, fw->size);
/* initialize common fields */
driver->drv.bus = &pcmcia_bus_type;
driver->drv.owner = driver->owner;
- driver->drv.probe = pcmcia_device_probe;
- driver->drv.remove = pcmcia_device_remove;
return driver_register(&driver->drv);
}
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
+ struct pcmcia_socket *s;
int ret = 0;
dev = get_device(dev);
p_dev = to_pcmcia_dev(dev);
p_drv = to_pcmcia_drv(dev->driver);
+ s = p_dev->socket;
- if (!try_module_get(p_drv->owner)) {
+ if ((!p_drv->probe) || (!try_module_get(p_drv->owner))) {
ret = -EINVAL;
goto put_dev;
}
- if (p_drv->attach) {
- p_dev->instance = p_drv->attach();
- if ((!p_dev->instance) || (p_dev->state & CLIENT_UNBOUND)) {
- printk(KERN_NOTICE "ds: unable to create instance "
- "of '%s'!\n", p_drv->drv.name);
- ret = -EINVAL;
+ p_dev->state &= ~CLIENT_UNBOUND;
+
+ /* set up the device configuration, if it hasn't been done before */
+ if (!s->functions) {
+ cistpl_longlink_mfc_t mfc;
+ if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC,
+ &mfc) == CS_SUCCESS)
+ s->functions = mfc.nfn;
+ else
+ s->functions = 1;
+ s->config = kzalloc(sizeof(config_t) * s->functions,
+ GFP_KERNEL);
+ if (!s->config) {
+ ret = -ENOMEM;
+ goto put_module;
}
}
+ ret = p_drv->probe(p_dev);
+
+ put_module:
if (ret)
module_put(p_drv->owner);
put_dev:
- if ((ret) || !(p_drv->attach))
+ if (ret)
put_device(dev);
return (ret);
}
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
+ int i;
/* detach the "instance" */
p_dev = to_pcmcia_dev(dev);
p_drv = to_pcmcia_drv(dev->driver);
+ if (!p_drv)
+ return 0;
- if (p_drv) {
- if ((p_drv->detach) && (p_dev->instance)) {
- p_drv->detach(p_dev->instance);
- /* from pcmcia_probe_device */
- put_device(&p_dev->dev);
- }
- module_put(p_drv->owner);
- }
+ if (p_drv->remove)
+ p_drv->remove(p_dev);
+
+ /* check for proper unloading */
+ if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
+ printk(KERN_INFO "pcmcia: driver %s did not release config properly\n",
+ p_drv->drv.name);
+
+ for (i = 0; i < MAX_WIN; i++)
+ if (p_dev->state & CLIENT_WIN_REQ(i))
+ printk(KERN_INFO "pcmcia: driver %s did not release windows properly\n",
+ p_drv->drv.name);
+
+ /* references from pcmcia_probe_device */
+ p_dev->state = CLIENT_UNBOUND;
+ pcmcia_put_dev(p_dev);
+ module_put(p_drv->owner);
return 0;
}
+/*
+ * Removes a PCMCIA card from the device tree and socket list.
+ */
+static void pcmcia_card_remove(struct pcmcia_socket *s)
+{
+ struct pcmcia_device *p_dev;
+ unsigned long flags;
+
+ ds_dbg(2, "unbind_request(%d)\n", s->sock);
+
+ s->device_count = 0;
+
+ for (;;) {
+ /* unregister all pcmcia_devices registered with this socket*/
+ spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ if (list_empty(&s->devices_list)) {
+ spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ return;
+ }
+ p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list);
+ list_del(&p_dev->socket_device_list);
+ p_dev->state |= CLIENT_STALE;
+ spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+
+ device_unregister(&p_dev->dev);
+ }
+
+ return;
+} /* unbind_request */
+
/*
* pcmcia_device_query -- determine information about a pcmcia device
if (s->device_count == 2)
goto err_put;
- p_dev = kmalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
+ p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
if (!p_dev)
goto err_put;
- memset(p_dev, 0, sizeof(struct pcmcia_device));
p_dev->socket = s;
p_dev->device_no = (s->device_count++);
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)) {
if (!(s->resource_setup_done))
return -EAGAIN; /* try again, but later... */
- pcmcia_validate_mem(s);
+ if (pcmcia_validate_mem(s))
+ return -EAGAIN; /* try again, but later... */
+
ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo);
if (ret || !cisinfo.Chains) {
ds_dbg(0, "invalid CIS or invalid resources\n");
#ifdef CONFIG_HOTPLUG
-static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
{
struct pcmcia_device *p_dev;
int i, length = 0;
i = 0;
- if (add_hotplug_env_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "SOCKET_NO=%u",
- p_dev->socket->sock))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "SOCKET_NO=%u",
+ p_dev->socket->sock))
return -ENOMEM;
- if (add_hotplug_env_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "DEVICE_NO=%02X",
- p_dev->device_no))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "DEVICE_NO=%02X",
+ p_dev->device_no))
return -ENOMEM;
- if (add_hotplug_env_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
- "pa%08Xpb%08Xpc%08Xpd%08X",
- p_dev->has_manf_id ? p_dev->manf_id : 0,
- p_dev->has_card_id ? p_dev->card_id : 0,
- p_dev->has_func_id ? p_dev->func_id : 0,
- p_dev->func,
- p_dev->device_no,
- hash[0],
- hash[1],
- hash[2],
- hash[3]))
+ if (add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
+ "pa%08Xpb%08Xpc%08Xpd%08X",
+ p_dev->has_manf_id ? p_dev->manf_id : 0,
+ p_dev->has_card_id ? p_dev->card_id : 0,
+ p_dev->has_func_id ? p_dev->func_id : 0,
+ p_dev->func,
+ p_dev->device_no,
+ hash[0],
+ hash[1],
+ hash[2],
+ hash[3]))
return -ENOMEM;
envp[i] = NULL;
#else
-static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp,
+static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size)
{
return -ENODEV;
pcmcia_device_stringattr(prod_id3, prod_id[2]);
pcmcia_device_stringattr(prod_id4, prod_id[3]);
+
+static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+
+ if (p_dev->dev.power.power_state.event != PM_EVENT_ON)
+ return sprintf(buf, "off\n");
+ else
+ return sprintf(buf, "on\n");
+}
+
+static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ int ret = 0;
+
+ if (!count)
+ return -EINVAL;
+
+ if ((p_dev->dev.power.power_state.event == PM_EVENT_ON) &&
+ (!strncmp(buf, "off", 3)))
+ ret = dpm_runtime_suspend(dev, PMSG_SUSPEND);
+ else if ((p_dev->dev.power.power_state.event != PM_EVENT_ON) &&
+ (!strncmp(buf, "on", 2)))
+ dpm_runtime_resume(dev);
+
+ return ret ? ret : count;
+}
+
+
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
struct device_attribute *attr, const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- if (!count)
- return -EINVAL;
+
+ if (!count)
+ return -EINVAL;
down(&p_dev->socket->skt_sem);
p_dev->allow_func_id_match = 1;
static struct device_attribute pcmcia_dev_attrs[] = {
__ATTR(function, 0444, func_show, NULL),
+ __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state),
__ATTR_RO(func_id),
__ATTR_RO(manf_id),
__ATTR_RO(card_id),
__ATTR_NULL,
};
+/* PM support, also needed for reset */
-/*======================================================================
+static int pcmcia_dev_suspend(struct device * dev, pm_message_t state)
+{
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ struct pcmcia_driver *p_drv = NULL;
- The card status event handler.
-
-======================================================================*/
+ if (dev->driver)
+ p_drv = to_pcmcia_drv(dev->driver);
-struct send_event_data {
- struct pcmcia_socket *skt;
- event_t event;
- int priority;
-};
+ if (p_drv && p_drv->suspend)
+ return p_drv->suspend(p_dev);
+
+ return 0;
+}
-static int send_event_callback(struct device *dev, void * _data)
+
+static int pcmcia_dev_resume(struct device * dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- struct pcmcia_driver *p_drv;
- struct send_event_data *data = _data;
+ struct pcmcia_driver *p_drv = NULL;
- /* we get called for all sockets, but may only pass the event
- * for drivers _on the affected socket_ */
- if (p_dev->socket != data->skt)
- return 0;
+ if (dev->driver)
+ p_drv = to_pcmcia_drv(dev->driver);
- p_drv = to_pcmcia_drv(p_dev->dev.driver);
- if (!p_drv)
+ if (p_drv && p_drv->resume)
+ return p_drv->resume(p_dev);
+
+ return 0;
+}
+
+
+static int pcmcia_bus_suspend_callback(struct device *dev, void * _data)
+{
+ struct pcmcia_socket *skt = _data;
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+
+ if (p_dev->socket != skt)
return 0;
- if (p_dev->state & (CLIENT_UNBOUND|CLIENT_STALE))
+ return dpm_runtime_suspend(dev, PMSG_SUSPEND);
+}
+
+static int pcmcia_bus_resume_callback(struct device *dev, void * _data)
+{
+ struct pcmcia_socket *skt = _data;
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+
+ if (p_dev->socket != skt)
return 0;
- if (p_drv->event)
- return p_drv->event(data->event, data->priority,
- &p_dev->event_callback_args);
+ dpm_runtime_resume(dev);
+
+ return 0;
+}
+static int pcmcia_bus_resume(struct pcmcia_socket *skt)
+{
+ bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
return 0;
}
-static int send_event(struct pcmcia_socket *s, event_t event, int priority)
+static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
{
- struct send_event_data private;
+ if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
+ pcmcia_bus_suspend_callback)) {
+ pcmcia_bus_resume(skt);
+ return -EIO;
+ }
+ return 0;
+}
- private.skt = s;
- private.event = event;
- private.priority = priority;
- return bus_for_each_dev(&pcmcia_bus_type, NULL, &private, send_event_callback);
-} /* send_event */
+/*======================================================================
+ The card status event handler.
+
+======================================================================*/
/* Normally, the event is passed to individual drivers after
* informing userspace. Only for CS_EVENT_CARD_REMOVAL this
static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
{
struct pcmcia_socket *s = pcmcia_get_socket(skt);
- int ret = 0;
ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
event, priority, skt);
-
- switch (event) {
+ switch (event) {
case CS_EVENT_CARD_REMOVAL:
s->pcmcia_state.present = 0;
- send_event(skt, event, priority);
- unbind_request(skt);
+ pcmcia_card_remove(skt);
handle_event(skt, event);
break;
-
+
case CS_EVENT_CARD_INSERTION:
s->pcmcia_state.present = 1;
pcmcia_card_add(skt);
break;
case CS_EVENT_EJECTION_REQUEST:
- ret = send_event(skt, event, priority);
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);
- send_event(skt, event, priority);
break;
}
} /* ds_event */
-
-int pcmcia_register_client(struct pcmcia_device **handle, client_reg_t *req)
-{
- struct pcmcia_socket *s = NULL;
- struct pcmcia_device *p_dev = NULL;
- struct pcmcia_driver *p_drv = NULL;
-
- /* Look for unbound client with matching dev_info */
- down_read(&pcmcia_socket_list_rwsem);
- list_for_each_entry(s, &pcmcia_socket_list, socket_list) {
- unsigned long flags;
-
- if (s->state & SOCKET_CARDBUS)
- continue;
-
- s = pcmcia_get_socket(s);
- if (!s)
- continue;
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- list_for_each_entry(p_dev, &s->devices_list, socket_device_list) {
- p_dev = pcmcia_get_dev(p_dev);
- if (!p_dev)
- continue;
- if (!(p_dev->state & CLIENT_UNBOUND) ||
- (!p_dev->dev.driver)) {
- pcmcia_put_dev(p_dev);
- continue;
- }
- p_drv = to_pcmcia_drv(p_dev->dev.driver);
- if (!strncmp(p_drv->drv.name, (char *)req->dev_info, DEV_NAME_LEN)) {
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
- goto found;
- }
- pcmcia_put_dev(p_dev);
- }
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
- pcmcia_put_socket(s);
- }
- found:
- up_read(&pcmcia_socket_list_rwsem);
- if (!p_dev)
- return -ENODEV;
-
- pcmcia_put_socket(s); /* safe, as we already hold a reference from bind_device */
-
- *handle = p_dev;
- p_dev->state &= ~CLIENT_UNBOUND;
- p_dev->event_callback_args = req->event_callback_args;
- p_dev->event_callback_args.client_handle = p_dev;
-
-
- if (!s->functions) {
- cistpl_longlink_mfc_t mfc;
- if (pccard_read_tuple(s, p_dev->func, CISTPL_LONGLINK_MFC, &mfc)
- == CS_SUCCESS)
- s->functions = mfc.nfn;
- else
- s->functions = 1;
- s->config = kmalloc(sizeof(config_t) * s->functions,
- GFP_KERNEL);
- if (!s->config)
- goto out_no_resource;
- memset(s->config, 0, sizeof(config_t) * s->functions);
- }
-
- ds_dbg(1, "register_client(): client 0x%p, dev %s\n",
- p_dev, p_dev->dev.bus_id);
-
- if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT) {
- if (p_drv->event)
- p_drv->event(CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW,
- &p_dev->event_callback_args);
-
- }
-
- return CS_SUCCESS;
-
- out_no_resource:
- pcmcia_put_dev(p_dev);
- return CS_OUT_OF_RESOURCE;
-} /* register_client */
-EXPORT_SYMBOL(pcmcia_register_client);
-
-
-/* unbind _all_ devices attached to a given pcmcia_bus_socket. The
- * drivers have been called with EVENT_CARD_REMOVAL before.
- */
-static int unbind_request(struct pcmcia_socket *s)
-{
- struct pcmcia_device *p_dev;
- unsigned long flags;
-
- ds_dbg(2, "unbind_request(%d)\n", s->sock);
-
- s->device_count = 0;
-
- for (;;) {
- /* unregister all pcmcia_devices registered with this socket*/
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- if (list_empty(&s->devices_list)) {
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
- return 0;
- }
- p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list);
- list_del(&p_dev->socket_device_list);
- p_dev->state |= CLIENT_STALE;
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
-
- device_unregister(&p_dev->dev);
- }
-
- return 0;
-} /* unbind_request */
-
-int pcmcia_deregister_client(struct pcmcia_device *p_dev)
-{
- struct pcmcia_socket *s;
- int i;
-
- s = p_dev->socket;
- ds_dbg(1, "deregister_client(%p)\n", p_dev);
-
- if (p_dev->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED))
- goto warn_out;
- for (i = 0; i < MAX_WIN; i++)
- if (p_dev->state & CLIENT_WIN_REQ(i))
- goto warn_out;
-
- if (p_dev->state & CLIENT_STALE) {
- p_dev->state &= ~CLIENT_STALE;
- pcmcia_put_dev(p_dev);
- } else {
- p_dev->state = CLIENT_UNBOUND;
- }
-
- return CS_SUCCESS;
- warn_out:
- printk(KERN_WARNING "ds: deregister_client was called too early.\n");
- return CS_IN_USE;
-} /* deregister_client */
-EXPORT_SYMBOL(pcmcia_deregister_client);
-
static struct pcmcia_callback pcmcia_bus_callback = {
.owner = THIS_MODULE,
.event = ds_event,
.requery = pcmcia_bus_rescan,
+ .suspend = pcmcia_bus_suspend,
+ .resume = pcmcia_bus_resume,
};
-static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev)
+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;
return 0;
}
-static void pcmcia_bus_remove_socket(struct class_device *class_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);
struct bus_type pcmcia_bus_type = {
.name = "pcmcia",
- .hotplug = pcmcia_bus_hotplug,
+ .uevent = pcmcia_bus_uevent,
.match = pcmcia_bus_match,
.dev_attrs = pcmcia_dev_attrs,
+ .probe = pcmcia_device_probe,
+ .remove = pcmcia_device_remove,
+ .suspend = pcmcia_dev_suspend,
+ .resume = pcmcia_dev_resume,
};
git.openpandora.org / pandora-kernel.git / blobdiff