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Diffstat (limited to 'drivers/misc/mei/bus.c')
-rw-r--r--drivers/misc/mei/bus.c260
1 files changed, 130 insertions, 130 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 458aa5a09c52..18c37af22f07 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -32,22 +32,22 @@
static int mei_cl_device_match(struct device *dev, struct device_driver *drv)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- struct mei_cl_driver *driver = to_mei_cl_driver(drv);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ struct mei_cl_driver *cldrv = to_mei_cl_driver(drv);
const struct mei_cl_device_id *id;
const uuid_le *uuid;
const char *name;
- if (!device)
+ if (!cldev)
return 0;
- uuid = mei_me_cl_uuid(device->me_cl);
- name = device->name;
+ uuid = mei_me_cl_uuid(cldev->me_cl);
+ name = cldev->name;
- if (!driver || !driver->id_table)
+ if (!cldrv || !cldrv->id_table)
return 0;
- id = driver->id_table;
+ id = cldrv->id_table;
while (uuid_le_cmp(NULL_UUID_LE, id->uuid)) {
@@ -68,54 +68,54 @@ static int mei_cl_device_match(struct device *dev, struct device_driver *drv)
static int mei_cl_device_probe(struct device *dev)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- struct mei_cl_driver *driver;
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ struct mei_cl_driver *cldrv;
struct mei_cl_device_id id;
- if (!device)
+ if (!cldev)
return 0;
- driver = to_mei_cl_driver(dev->driver);
- if (!driver || !driver->probe)
+ cldrv = to_mei_cl_driver(dev->driver);
+ if (!cldrv || !cldrv->probe)
return -ENODEV;
dev_dbg(dev, "Device probe\n");
- strlcpy(id.name, device->name, sizeof(id.name));
+ strlcpy(id.name, cldev->name, sizeof(id.name));
- return driver->probe(device, &id);
+ return cldrv->probe(cldev, &id);
}
static int mei_cl_device_remove(struct device *dev)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- struct mei_cl_driver *driver;
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ struct mei_cl_driver *cldrv;
- if (!device || !dev->driver)
+ if (!cldev || !dev->driver)
return 0;
- if (device->event_cb) {
- device->event_cb = NULL;
- cancel_work_sync(&device->event_work);
+ if (cldev->event_cb) {
+ cldev->event_cb = NULL;
+ cancel_work_sync(&cldev->event_work);
}
- driver = to_mei_cl_driver(dev->driver);
- if (!driver->remove) {
+ cldrv = to_mei_cl_driver(dev->driver);
+ if (!cldrv->remove) {
dev->driver = NULL;
return 0;
}
- return driver->remove(device);
+ return cldrv->remove(cldev);
}
static ssize_t name_show(struct device *dev, struct device_attribute *a,
char *buf)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
size_t len;
- len = snprintf(buf, PAGE_SIZE, "%s", device->name);
+ len = snprintf(buf, PAGE_SIZE, "%s", cldev->name);
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
@@ -124,8 +124,8 @@ static DEVICE_ATTR_RO(name);
static ssize_t uuid_show(struct device *dev, struct device_attribute *a,
char *buf)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- const uuid_le *uuid = mei_me_cl_uuid(device->me_cl);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
size_t len;
len = snprintf(buf, PAGE_SIZE, "%pUl", uuid);
@@ -137,12 +137,12 @@ static DEVICE_ATTR_RO(uuid);
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
char *buf)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- const uuid_le *uuid = mei_me_cl_uuid(device->me_cl);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
size_t len;
len = snprintf(buf, PAGE_SIZE, "mei:%s:" MEI_CL_UUID_FMT ":",
- device->name, MEI_CL_UUID_ARGS(uuid->b));
+ cldev->name, MEI_CL_UUID_ARGS(uuid->b));
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
@@ -158,17 +158,17 @@ ATTRIBUTE_GROUPS(mei_cl_dev);
static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
- const uuid_le *uuid = mei_me_cl_uuid(device->me_cl);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
+ const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
if (add_uevent_var(env, "MEI_CL_UUID=%pUl", uuid))
return -ENOMEM;
- if (add_uevent_var(env, "MEI_CL_NAME=%s", device->name))
+ if (add_uevent_var(env, "MEI_CL_NAME=%s", cldev->name))
return -ENOMEM;
if (add_uevent_var(env, "MODALIAS=mei:%s:" MEI_CL_UUID_FMT ":",
- device->name, MEI_CL_UUID_ARGS(uuid->b)))
+ cldev->name, MEI_CL_UUID_ARGS(uuid->b)))
return -ENOMEM;
return 0;
@@ -185,121 +185,121 @@ static struct bus_type mei_cl_bus_type = {
static void mei_cl_dev_release(struct device *dev)
{
- struct mei_cl_device *device = to_mei_cl_device(dev);
+ struct mei_cl_device *cldev = to_mei_cl_device(dev);
- if (!device)
+ if (!cldev)
return;
- mei_me_cl_put(device->me_cl);
- kfree(device);
+ mei_me_cl_put(cldev->me_cl);
+ kfree(cldev);
}
static struct device_type mei_cl_device_type = {
.release = mei_cl_dev_release,
};
-struct mei_cl *mei_cl_bus_find_cl_by_uuid(struct mei_device *dev,
+struct mei_cl *mei_cl_bus_find_cl_by_uuid(struct mei_device *bus,
uuid_le uuid)
{
struct mei_cl *cl;
- list_for_each_entry(cl, &dev->device_list, device_link) {
- if (cl->device && cl->device->me_cl &&
- !uuid_le_cmp(uuid, *mei_me_cl_uuid(cl->device->me_cl)))
+ list_for_each_entry(cl, &bus->device_list, device_link) {
+ if (cl->cldev && cl->cldev->me_cl &&
+ !uuid_le_cmp(uuid, *mei_me_cl_uuid(cl->cldev->me_cl)))
return cl;
}
return NULL;
}
-struct mei_cl_device *mei_cl_add_device(struct mei_device *dev,
+struct mei_cl_device *mei_cl_add_device(struct mei_device *bus,
struct mei_me_client *me_cl,
struct mei_cl *cl,
char *name)
{
- struct mei_cl_device *device;
+ struct mei_cl_device *cldev;
int status;
- device = kzalloc(sizeof(struct mei_cl_device), GFP_KERNEL);
- if (!device)
+ cldev = kzalloc(sizeof(struct mei_cl_device), GFP_KERNEL);
+ if (!cldev)
return NULL;
- device->me_cl = mei_me_cl_get(me_cl);
- if (!device->me_cl) {
- kfree(device);
+ cldev->me_cl = mei_me_cl_get(me_cl);
+ if (!cldev->me_cl) {
+ kfree(cldev);
return NULL;
}
- device->cl = cl;
- device->dev.parent = dev->dev;
- device->dev.bus = &mei_cl_bus_type;
- device->dev.type = &mei_cl_device_type;
+ cldev->cl = cl;
+ cldev->dev.parent = bus->dev;
+ cldev->dev.bus = &mei_cl_bus_type;
+ cldev->dev.type = &mei_cl_device_type;
- strlcpy(device->name, name, sizeof(device->name));
+ strlcpy(cldev->name, name, sizeof(cldev->name));
- dev_set_name(&device->dev, "mei:%s:%pUl", name, mei_me_cl_uuid(me_cl));
+ dev_set_name(&cldev->dev, "mei:%s:%pUl", name, mei_me_cl_uuid(me_cl));
- status = device_register(&device->dev);
+ status = device_register(&cldev->dev);
if (status) {
- dev_err(dev->dev, "Failed to register MEI device\n");
- mei_me_cl_put(device->me_cl);
- kfree(device);
+ dev_err(bus->dev, "Failed to register MEI device\n");
+ mei_me_cl_put(cldev->me_cl);
+ kfree(cldev);
return NULL;
}
- cl->device = device;
+ cl->cldev = cldev;
- dev_dbg(&device->dev, "client %s registered\n", name);
+ dev_dbg(&cldev->dev, "client %s registered\n", name);
- return device;
+ return cldev;
}
EXPORT_SYMBOL_GPL(mei_cl_add_device);
-void mei_cl_remove_device(struct mei_cl_device *device)
+void mei_cl_remove_device(struct mei_cl_device *cldev)
{
- device_unregister(&device->dev);
+ device_unregister(&cldev->dev);
}
EXPORT_SYMBOL_GPL(mei_cl_remove_device);
-int __mei_cl_driver_register(struct mei_cl_driver *driver, struct module *owner)
+int __mei_cl_driver_register(struct mei_cl_driver *cldrv, struct module *owner)
{
int err;
- driver->driver.name = driver->name;
- driver->driver.owner = owner;
- driver->driver.bus = &mei_cl_bus_type;
+ cldrv->driver.name = cldrv->name;
+ cldrv->driver.owner = owner;
+ cldrv->driver.bus = &mei_cl_bus_type;
- err = driver_register(&driver->driver);
+ err = driver_register(&cldrv->driver);
if (err)
return err;
- pr_debug("mei: driver [%s] registered\n", driver->driver.name);
+ pr_debug("mei: driver [%s] registered\n", cldrv->driver.name);
return 0;
}
EXPORT_SYMBOL_GPL(__mei_cl_driver_register);
-void mei_cl_driver_unregister(struct mei_cl_driver *driver)
+void mei_cl_driver_unregister(struct mei_cl_driver *cldrv)
{
- driver_unregister(&driver->driver);
+ driver_unregister(&cldrv->driver);
- pr_debug("mei: driver [%s] unregistered\n", driver->driver.name);
+ pr_debug("mei: driver [%s] unregistered\n", cldrv->driver.name);
}
EXPORT_SYMBOL_GPL(mei_cl_driver_unregister);
ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
bool blocking)
{
- struct mei_device *dev;
+ struct mei_device *bus;
struct mei_cl_cb *cb = NULL;
ssize_t rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
- dev = cl->dev;
+ bus = cl->dev;
- mutex_lock(&dev->device_lock);
+ mutex_lock(&bus->device_lock);
if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
@@ -327,7 +327,7 @@ ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
rets = mei_cl_write(cl, cb, blocking);
out:
- mutex_unlock(&dev->device_lock);
+ mutex_unlock(&bus->device_lock);
if (rets < 0)
mei_io_cb_free(cb);
@@ -336,7 +336,7 @@ out:
ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
{
- struct mei_device *dev;
+ struct mei_device *bus;
struct mei_cl_cb *cb;
size_t r_length;
ssize_t rets;
@@ -344,9 +344,9 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
- dev = cl->dev;
+ bus = cl->dev;
- mutex_lock(&dev->device_lock);
+ mutex_lock(&bus->device_lock);
cb = mei_cl_read_cb(cl, NULL);
if (cb)
@@ -358,7 +358,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
if (list_empty(&cl->rd_completed) && !waitqueue_active(&cl->rx_wait)) {
- mutex_unlock(&dev->device_lock);
+ mutex_unlock(&bus->device_lock);
if (wait_event_interruptible(cl->rx_wait,
(!list_empty(&cl->rd_completed)) ||
@@ -369,7 +369,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
return -ERESTARTSYS;
}
- mutex_lock(&dev->device_lock);
+ mutex_lock(&bus->device_lock);
if (!mei_cl_is_connected(cl)) {
rets = -EBUSY;
@@ -396,14 +396,14 @@ copy:
free:
mei_io_cb_free(cb);
out:
- mutex_unlock(&dev->device_lock);
+ mutex_unlock(&bus->device_lock);
return rets;
}
-ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length)
+ssize_t mei_cl_send(struct mei_cl_device *cldev, u8 *buf, size_t length)
{
- struct mei_cl *cl = device->cl;
+ struct mei_cl *cl = cldev->cl;
if (cl == NULL)
return -ENODEV;
@@ -412,9 +412,9 @@ ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length)
}
EXPORT_SYMBOL_GPL(mei_cl_send);
-ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length)
+ssize_t mei_cl_recv(struct mei_cl_device *cldev, u8 *buf, size_t length)
{
- struct mei_cl *cl = device->cl;
+ struct mei_cl *cl = cldev->cl;
if (cl == NULL)
return -ENODEV;
@@ -425,108 +425,108 @@ EXPORT_SYMBOL_GPL(mei_cl_recv);
static void mei_bus_event_work(struct work_struct *work)
{
- struct mei_cl_device *device;
+ struct mei_cl_device *cldev;
- device = container_of(work, struct mei_cl_device, event_work);
+ cldev = container_of(work, struct mei_cl_device, event_work);
- if (device->event_cb)
- device->event_cb(device, device->events, device->event_context);
+ if (cldev->event_cb)
+ cldev->event_cb(cldev, cldev->events, cldev->event_context);
- device->events = 0;
+ cldev->events = 0;
/* Prepare for the next read */
- mei_cl_read_start(device->cl, 0, NULL);
+ mei_cl_read_start(cldev->cl, 0, NULL);
}
-int mei_cl_register_event_cb(struct mei_cl_device *device,
+int mei_cl_register_event_cb(struct mei_cl_device *cldev,
mei_cl_event_cb_t event_cb, void *context)
{
- if (device->event_cb)
+ if (cldev->event_cb)
return -EALREADY;
- device->events = 0;
- device->event_cb = event_cb;
- device->event_context = context;
- INIT_WORK(&device->event_work, mei_bus_event_work);
+ cldev->events = 0;
+ cldev->event_cb = event_cb;
+ cldev->event_context = context;
+ INIT_WORK(&cldev->event_work, mei_bus_event_work);
- mei_cl_read_start(device->cl, 0, NULL);
+ mei_cl_read_start(cldev->cl, 0, NULL);
return 0;
}
EXPORT_SYMBOL_GPL(mei_cl_register_event_cb);
-void *mei_cl_get_drvdata(const struct mei_cl_device *device)
+void *mei_cl_get_drvdata(const struct mei_cl_device *cldev)
{
- return dev_get_drvdata(&device->dev);
+ return dev_get_drvdata(&cldev->dev);
}
EXPORT_SYMBOL_GPL(mei_cl_get_drvdata);
-void mei_cl_set_drvdata(struct mei_cl_device *device, void *data)
+void mei_cl_set_drvdata(struct mei_cl_device *cldev, void *data)
{
- dev_set_drvdata(&device->dev, data);
+ dev_set_drvdata(&cldev->dev, data);
}
EXPORT_SYMBOL_GPL(mei_cl_set_drvdata);
-int mei_cl_enable_device(struct mei_cl_device *device)
+int mei_cl_enable_device(struct mei_cl_device *cldev)
{
int err;
- struct mei_device *dev;
- struct mei_cl *cl = device->cl;
+ struct mei_device *bus;
+ struct mei_cl *cl = cldev->cl;
if (cl == NULL)
return -ENODEV;
- dev = cl->dev;
+ bus = cl->dev;
- mutex_lock(&dev->device_lock);
+ mutex_lock(&bus->device_lock);
if (mei_cl_is_connected(cl)) {
- mutex_unlock(&dev->device_lock);
- dev_warn(dev->dev, "Already connected");
+ mutex_unlock(&bus->device_lock);
+ dev_warn(bus->dev, "Already connected");
return -EBUSY;
}
- err = mei_cl_connect(cl, device->me_cl, NULL);
+ err = mei_cl_connect(cl, cldev->me_cl, NULL);
if (err < 0) {
- mutex_unlock(&dev->device_lock);
- dev_err(dev->dev, "Could not connect to the ME client");
+ mutex_unlock(&bus->device_lock);
+ dev_err(bus->dev, "Could not connect to the ME client");
return err;
}
- mutex_unlock(&dev->device_lock);
+ mutex_unlock(&bus->device_lock);
- if (device->event_cb)
- mei_cl_read_start(device->cl, 0, NULL);
+ if (cldev->event_cb)
+ mei_cl_read_start(cldev->cl, 0, NULL);
return 0;
}
EXPORT_SYMBOL_GPL(mei_cl_enable_device);
-int mei_cl_disable_device(struct mei_cl_device *device)
+int mei_cl_disable_device(struct mei_cl_device *cldev)
{
int err;
- struct mei_device *dev;
- struct mei_cl *cl = device->cl;
+ struct mei_device *bus;
+ struct mei_cl *cl = cldev->cl;
if (cl == NULL)
return -ENODEV;
- dev = cl->dev;
+ bus = cl->dev;
- device->event_cb = NULL;
+ cldev->event_cb = NULL;
- mutex_lock(&dev->device_lock);
+ mutex_lock(&bus->device_lock);
if (!mei_cl_is_connected(cl)) {
- dev_err(dev->dev, "Already disconnected");
+ dev_err(bus->dev, "Already disconnected");
err = 0;
goto out;
}
err = mei_cl_disconnect(cl);
if (err < 0) {
- dev_err(dev->dev, "Could not disconnect from the ME client");
+ dev_err(bus->dev, "Could not disconnect from the ME client");
goto out;
}
@@ -534,7 +534,7 @@ int mei_cl_disable_device(struct mei_cl_device *device)
mei_cl_flush_queues(cl, NULL);
out:
- mutex_unlock(&dev->device_lock);
+ mutex_unlock(&bus->device_lock);
return err;
}
@@ -542,14 +542,14 @@ EXPORT_SYMBOL_GPL(mei_cl_disable_device);
void mei_cl_bus_rx_event(struct mei_cl *cl)
{
- struct mei_cl_device *device = cl->device;
+ struct mei_cl_device *cldev = cl->cldev;
- if (!device || !device->event_cb)
+ if (!cldev || !cldev->event_cb)
return;
- set_bit(MEI_CL_EVENT_RX, &device->events);
+ set_bit(MEI_CL_EVENT_RX, &cldev->events);
- schedule_work(&device->event_work);
+ schedule_work(&cldev->event_work);
}
int __init mei_cl_bus_init(void)