|
Linux Kernel
3.7.1
|
All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
|
Linux Kernel
3.7.1
|
#include <linux/atomic.h>#include <linux/clk.h>#include <linux/completion.h>#include <linux/list.h>#include <linux/mutex.h>#include <linux/notifier.h>#include <linux/spinlock.h>#include <linux/workqueue.h>Go to the source code of this file.
Data Structures | |
| struct | nvec_msg |
| struct | nvec_subdev |
| struct | nvec_platform_data |
| struct | nvec_chip |
Macros | |
| #define | NVEC_POOL_SIZE 64 |
| #define | NVEC_MSG_SIZE 34 |
Enumerations | |
| enum | nvec_event_size { NVEC_2BYTES, NVEC_3BYTES, NVEC_VAR_SIZE } |
| enum | nvec_msg_type { NVEC_SYS = 1, NVEC_BAT, NVEC_KBD = 5, NVEC_PS2, NVEC_CNTL, NVEC_KB_EVT = 0x80, NVEC_PS2_EVT } |
Functions | |
: The name of the sub device | |
struct nvec_subdev - A subdevice of nvec, such as nvec_kbd : Platform data : Identifier of the sub device | |
| int | nvec_write_async (struct nvec_chip *nvec, const unsigned char *data, short size) |
| struct nvec_msg * | nvec_write_sync (struct nvec_chip *nvec, const unsigned char *data, short size) |
| int | nvec_register_notifier (struct nvec_chip *nvec, struct notifier_block *nb, unsigned int events) |
| int | nvec_unregister_notifier (struct device *dev, struct notifier_block *nb, unsigned int events) |
| void | nvec_msg_free (struct nvec_chip *nvec, struct nvec_msg *msg) |
| enum nvec_event_size |
enum nvec_event_size - The size of an event message : The message has one command byte and one data byte : The message has one command byte and two data bytes : The message has one command byte, one count byte, and has up to as many bytes as the number in the count byte. The maximum is 32
Events can be fixed or variable sized. This is useless on other message types, which are always variable sized.
| enum nvec_msg_type |
enum nvec_msg_type - The type of a message : A system request/response : A battery request/response : A keyboard request/response : A mouse request/response : A EC control request/response : An event from the keyboard : An event from the mouse
Events can be fixed or variable sized. This is useless on other message types, which are always variable sized.
| int nvec_register_notifier | ( | struct nvec_chip * | nvec, |
| struct notifier_block * | nb, | ||
| unsigned int | events | ||
| ) |
nvec_register_notifier - Register a notifier with nvec : A &struct nvec_chip : The notifier block to register
Registers a notifier with . The notifier will be added to an atomic notifier chain that is called for all received messages except those that correspond to a request initiated by nvec_write_sync().
| int nvec_unregister_notifier | ( | struct device * | dev, |
| struct notifier_block * | nb, | ||
| unsigned int | events | ||
| ) |
nvec_write_async - Asynchronously write a message to NVEC : An nvec_chip instance : The message data, starting with the request type : The size of
Queue a single message to be transferred to the embedded controller and return immediately.
Returns: 0 on success, a negative error code on failure. If a failure occured, the nvec driver may print an error.
|
read |
nvec_write_sync - Write a message to nvec and read the response : An &struct nvec_chip : The data to write : The size of
This is similar to nvec_write_async(), but waits for the request to be answered before returning. This function uses a mutex and can thus not be called from e.g. interrupt handlers.
Returns: A pointer to the response message on success, NULL on failure. Free with nvec_msg_free() once no longer used.
1.8.2