diff options
Diffstat (limited to 'drivers/io/io_driver.h')
-rw-r--r-- | drivers/io/io_driver.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/drivers/io/io_driver.h b/drivers/io/io_driver.h deleted file mode 100644 index 82dbbf12..00000000 --- a/drivers/io/io_driver.h +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of ARM nor the names of its contributors may be used - * to endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __IO_DRIVER_H__ -#define __IO_DRIVER_H__ - -#include "platform.h" /* For MAX_IO_DEVICES */ - - -/* Generic IO entity structure,representing an accessible IO construct on the - * device, such as a file */ -struct io_entity { - io_dev_handle dev_handle; - uintptr_t info; -}; - - -/* Device info structure, providing device-specific functions and a means of - * adding driver-specific state */ -struct io_dev_info { - struct io_dev_funcs *funcs; - uintptr_t info; -}; - - -/* Structure used to create a connection to a type of device */ -struct io_dev_connector { - /* dev_open opens a connection to a particular device driver */ - int (*dev_open)(void *spec, struct io_dev_info **dev_info); -}; - - -/* Structure to hold device driver function pointers */ -struct io_dev_funcs { - io_type (*type)(void); - int (*open)(struct io_dev_info *dev_info, const void *spec, - struct io_entity *entity); - int (*seek)(struct io_entity *entity, int mode, ssize_t offset); - int (*size)(struct io_entity *entity, size_t *length); - int (*read)(struct io_entity *entity, void *buffer, size_t length, - size_t *length_read); - int (*write)(struct io_entity *entity, const void *buffer, - size_t length, size_t *length_written); - int (*close)(struct io_entity *entity); - int (*dev_init)(struct io_dev_info *dev_info, const void *init_params); - int (*dev_close)(struct io_dev_info *dev_info); -}; - - -/* IO platform data - used to track devices registered for a specific - * platform */ -struct io_plat_data { - struct io_dev_info *devices[MAX_IO_DEVICES]; - unsigned int dev_count; -}; - - -/* Operations intended to be performed during platform initialisation */ - -/* Initialise the IO layer */ -void io_init(struct io_plat_data *data); - -/* Register a device driver */ -int io_register_device(struct io_dev_info *dev_info); - -#endif /* __IO_DRIVER_H__ */ |