diff options
Diffstat (limited to 'nuttx/graphics/nxmu/nx_kbdin.c')
-rw-r--r-- | nuttx/graphics/nxmu/nx_kbdin.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/nuttx/graphics/nxmu/nx_kbdin.c b/nuttx/graphics/nxmu/nx_kbdin.c new file mode 100644 index 000000000..b4b91298b --- /dev/null +++ b/nuttx/graphics/nxmu/nx_kbdin.c @@ -0,0 +1,122 @@ +/**************************************************************************** + * graphics/nxmu/nx_kbdin.c + * + * Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 3. Neither the name NuttX 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 OWNER 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdlib.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/nx/nx.h> +#include "nxfe.h" + +#ifdef CONFIG_NX_KBD + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nx_kbdin + * + * Description: + * Used by a thread or interrupt handler that manages some kind of keypad + * hardware to report text information to the NX server. That text + * data will be routed by the NX server to the appropriate window client. + * + ****************************************************************************/ + +int nx_kbdin(NXHANDLE handle, uint8_t nch, FAR const uint8_t *ch) +{ + FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle; + FAR struct nxsvrmsg_kbdin_s *outmsg; + int size; + int ret; + int i; + + /* Allocate a bigger message to account for the variable amount of character + * data. + */ + + size = sizeof(struct nxsvrmsg_kbdin_s) + nch - 1; + outmsg = (FAR struct nxsvrmsg_kbdin_s *)malloc(size); + if (!outmsg) + { + errno = ENOMEM; + return ERROR; + } + + /* Inform the server of the new keypad data */ + + outmsg->msgid = NX_SVRMSG_KBDIN; + outmsg->nch = nch; + + for (i = 0; i < nch; i++) + { + outmsg->ch[i] = ch[i]; + } + + ret = nxmu_sendserver(conn, outmsg, size); + + free(outmsg); + return ret; +} + +#endif /* CONFIG_NX_KBD */ |