incubator-nuttx/graphics/nxmu/nxmu_kbdin.c

84 lines
2.6 KiB
C

/****************************************************************************
* graphics/nxmu/nxmu_kbdin.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/kmalloc.h>
#include <nuttx/nx/nx.h>
#include "nxmu.h"
#ifdef CONFIG_NX_KBD
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxmu_kbdin
*
* Description:
* New keyboard data has been received from the thread or interrupt
* handler that manages some kind of keyboard/keypad hardware. Route that
* positional data to the appropriate window client.
*
****************************************************************************/
void nxmu_kbdin(FAR struct nxmu_state_s *nxmu, uint8_t nch, FAR uint8_t *ch)
{
FAR struct nxclimsg_kbdin_s *outmsg;
int size;
int i;
/* Allocate a bigger message to account for the variable amount of
* character data.
*/
size = sizeof(struct nxclimsg_kbdin_s) + nch - 1;
outmsg = (FAR struct nxclimsg_kbdin_s *)kmm_malloc(size);
if (outmsg)
{
/* Give the keypad input only to the top child */
outmsg->msgid = NX_CLIMSG_KBDIN;
outmsg->wnd = nxmu->be.topwnd;
outmsg->nch = nch;
for (i = 0; i < nch; i++)
{
outmsg->ch[i] = ch[i];
}
nxmu_sendclientwindow(nxmu->be.topwnd, outmsg, size);
kmm_free(outmsg);
}
}
#endif /* CONFIG_NX_KBD */