Defines | |
#define | os_dev_is_flag_read() (file_p_->f_mode & FMODE_READ) |
#define | os_dev_is_flag_write() (file_p_->f_mode & FMODE_WRITE) |
#define | os_dev_is_flag_nonblock() (file_p_->f_flags & (O_NONBLOCK | O_NDELAY)) |
#define | os_dev_get_major() (imajor(inode_p_)) |
#define | os_dev_get_minor() (iminor(inode_p_)) |
#define | os_dev_get_ioctl_op() (cmd_) |
#define | os_dev_get_ioctl_arg() (data_) |
#define | os_dev_get_count() ((unsigned)count_bytes_) |
#define | os_dev_get_user_buffer() ((void*)user_buffer_) |
#define | os_dev_get_file_flags() (file_p_->f_flags) |
#define | os_dev_set_user_private(struct_p) file_p_->private_data = (void*)(struct_p) |
#define | os_dev_get_user_private() ((void*)file_p_->private_data) |
#define | os_dev_get_irq() N1_ |
Functions | |
int | os_dev_is_flag_read (void) |
int | os_dev_is_flag_write (void) |
int | os_dev_is_flag_nonblock (void) |
int | os_dev_get_major (void) |
int | os_dev_get_minor (void) |
unsigned | os_dev_get_ioctl_op (void) |
os_dev_ioctl_arg_t | os_dev_get_ioctl_arg (void) |
unsigned | os_dev_get_count (void) |
void * | os_dev_get_user_buffer (void) |
unsigned | os_dev_get_file_flags (void) |
void | os_dev_set_user_private (void *struct_p) |
void * | os_dev_get_user_private (void) |
int | os_dev_get_irq (void) |
#define os_dev_get_count | ( | void | ) | ((unsigned)count_bytes_) |
Used in OS_DEV_READ() and OS_DEV_WRITE() routines to access the requested byte count.
#define os_dev_get_file_flags | ( | void | ) | (file_p_->f_flags) |
Used in OS_DEV_READ(), OS_DEV_WRITE(), and OS_DEV_IOCTL() routines to get the POSIX flags field for the associated open file).
#define os_dev_get_ioctl_arg | ( | void | ) | (data_) |
Used in OS_DEV_IOCTL() to return the associated argument for the desired operation.
Referenced by OS_DEV_IOCTL().
#define os_dev_get_ioctl_op | ( | void | ) | (cmd_) |
Used in OS_DEV_IOCTL() to determine which operation the user wants performed.
Referenced by OS_DEV_IOCTL().
#define os_dev_get_irq | ( | void | ) | N1_ |
Get the IRQ associated with this call to the OS_DEV_ISR() function.
Referenced by OS_DEV_ISR().
#define os_dev_get_major | ( | void | ) | (imajor(inode_p_)) |
Used in OS_DEV_OPEN() and OS_DEV_CLOSE() to determine major device being accessed.
#define os_dev_get_minor | ( | void | ) | (iminor(inode_p_)) |
Used in OS_DEV_OPEN() and OS_DEV_CLOSE() to determine minor device being accessed.
#define os_dev_get_user_buffer | ( | void | ) | ((void*)user_buffer_) |
Used in OS_DEV_READ() and OS_DEV_WRITE() routines to return the pointer byte count.
#define os_dev_get_user_private | ( | void | ) | ((void*)file_p_->private_data) |
Get the driver's private structure associated with this file.
May be used during OS_DEV_OPEN(), OS_DEV_READ(), OS_DEV_WRITE(), OS_DEV_IOCTL(), and OS_DEV_CLOSE(). See os_dev_set_user_private().
Referenced by OS_DEV_CLOSE(), OS_DEV_IOCTL(), and OS_DEV_MMAP().
#define os_dev_is_flag_nonblock | ( | void | ) | (file_p_->f_flags & (O_NONBLOCK | O_NDELAY)) |
Used in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines to check whether user is requesting non-blocking I/O.
#define os_dev_is_flag_read | ( | void | ) | (file_p_->f_mode & FMODE_READ) |
Used in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines to check whether user is requesting read (permission)
#define os_dev_is_flag_write | ( | void | ) | (file_p_->f_mode & FMODE_WRITE) |
Used in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines to check whether user is requesting write (permission)
#define os_dev_set_user_private | ( | struct_p | ) | file_p_->private_data = (void*)(struct_p) |
Set the driver's private structure associated with this file/open.
Generally used during OS_DEV_OPEN(). See os_dev_get_user_private().
struct_p | The driver data structure to associate with this user. |
Referenced by OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_MMAP(), and OS_DEV_OPEN().
unsigned os_dev_get_count | ( | void | ) |
Determine the requested byte count. This should be the size of buffer at os_dev_get_user_buffer(). Usable in OS_DEV_READ() and OS_DEV_WRITE() routines.
unsigned os_dev_get_file_flags | ( | void | ) |
Get the POSIX flags field for the associated open file. Usable in OS_DEV_READ(), OS_DEV_WRITE(), and OS_DEV_IOCTL() routines.
os_dev_ioctl_arg_t os_dev_get_ioctl_arg | ( | void | ) |
Retrieve the associated argument for the desired operation. Usable in OS_DEV_IOCTL().
unsigned os_dev_get_ioctl_op | ( | void | ) |
Determine which operation the user wants performed. Usable in OS_DEV_IOCTL().
int os_dev_get_irq | ( | void | ) |
Get the IRQ associated with this call to the OS_DEV_ISR() function.
int os_dev_get_major | ( | void | ) |
Determine which major device is being accessed. Usable in OS_DEV_OPEN() and OS_DEV_CLOSE().
int os_dev_get_minor | ( | void | ) |
Determine which minor device is being accessed. Usable in OS_DEV_OPEN() and OS_DEV_CLOSE().
void* os_dev_get_user_buffer | ( | void | ) |
Get the pointer to the user's data buffer. Usable in OS_DEV_READ(), OS_DEV_WRITE(), and OS_DEV_MMAP() routines.
void* os_dev_get_user_private | ( | void | ) |
Get the driver's private structure associated with this file.
May be used during OS_DEV_OPEN(), OS_DEV_READ(), OS_DEV_WRITE(), OS_DEV_IOCTL(), OS_DEV_MMAP(), and OS_DEV_CLOSE(). See also os_dev_set_user_private().
int os_dev_is_flag_nonblock | ( | void | ) |
Check whether user is requesting non-blocking I/O. Usable in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines.
int os_dev_is_flag_read | ( | void | ) |
Check whether user is requesting read (permission) on the file/device. Usable in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines.
int os_dev_is_flag_write | ( | void | ) |
Check whether user is requesting write (permission) on the file/device. Usable in OS_DEV_OPEN(), OS_DEV_CLOSE(), OS_DEV_IOCTL(), OS_DEV_READ() and OS_DEV_WRITE() routines.
void os_dev_set_user_private | ( | void * | struct_p | ) |
Set the driver's private structure associated with this file/open.
Generally used during OS_DEV_OPEN(). May also be used during OS_DEV_READ(), OS_DEV_WRITE(), OS_DEV_IOCTL(), OS_DEV_MMAP(), and OS_DEV_CLOSE(). See also os_dev_get_user_private().
struct_p | The driver data structure to associate with this user. |
© Freescale Semiconductor, Inc., 2007.
All rights reserved. Freescale Confidential Proprietary NDA Required |
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