/*
* Copyright (c) 2012 Maurizio Lombardi
* 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/** @addtogroup libdrv
* @{
*/
/** @file
*/
#include <async.h>
#include <errno.h>
#include <time.h>
#include <macros.h>
#include <device/clock_dev.h>
#include <ops/clock_dev.h>
#include <ddf/driver.h>
static void remote_clock_time_get(ddf_fun_t *, void *, ipc_call_t *);
static void remote_clock_time_set(ddf_fun_t *, void *, ipc_call_t *);
/** Remote clock interface operations */
static const remote_iface_func_ptr_t remote_clock_dev_iface_ops[] = {
[CLOCK_DEV_TIME_GET] = remote_clock_time_get,
[CLOCK_DEV_TIME_SET] = remote_clock_time_set,
};
/** Remote clock interface structure
*
* Interface for processing requests from remote clients
* addressed by the clock interface.
*/
const remote_iface_t remote_clock_dev_iface = {
.method_count = ARRAY_SIZE(remote_clock_dev_iface_ops),
.methods = remote_clock_dev_iface_ops,
};
/** Process the time_get() request from the remote client
*
* @param fun The function from which the time is read
* @param ops The local ops structure
*
*/
static void remote_clock_time_get(ddf_fun_t *fun, void *ops, ipc_call_t *call)
{
clock_dev_ops_t *clock_dev_ops = (clock_dev_ops_t *) ops;
struct tm t;
errno_t rc;
ipc_call_t data;
size_t len;
if (!async_data_read_receive(&data, &len)) {
/* TODO: Handle protocol error */
async_answer_0(call, EINVAL);
return;
}
if (!clock_dev_ops->time_get) {
/* The driver does not provide the time_get() functionality */
async_answer_0(&data, ENOTSUP);
async_answer_0(call, ENOTSUP);
return;
}
rc = (*clock_dev_ops->time_get)(fun, &t);
if (rc != EOK) {
/* Some error occurred */
async_answer_0(&data, rc);
async_answer_0(call, rc);
return;
}
/* The operation was successful */
async_data_read_finalize(&data, &t, sizeof(struct tm));
async_answer_0(call, rc);
}
/** Process the time_set() request from the remote client
*
* @param fun The function to which the data are written
* @param ops The local ops structure
*
*/
static void remote_clock_time_set(ddf_fun_t *fun, void *ops, ipc_call_t *call)
{
clock_dev_ops_t *clock_dev_ops = (clock_dev_ops_t *) ops;
errno_t rc;
struct tm t;
ipc_call_t data;
size_t len;
if (!async_data_write_receive(&data, &len)) {
/* TODO: Handle protocol error */
async_answer_0(call, EINVAL);
return;
}
if (!clock_dev_ops->time_set) {
/* The driver does not support the time_set() functionality */
async_answer_0(&data, ENOTSUP);
async_answer_0(call, ENOTSUP);
return;
}
async_data_write_finalize(&data, &t, sizeof(struct tm));
rc = (*clock_dev_ops->time_set)(fun, &t);
async_answer_0(call, rc);
}
/**
* @}
*/