/****************************************************************************
* graphics/nxsu/nx_open.c
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx.h>
#include "nxfe.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxsu_setup
****************************************************************************/
static inline int nxsu_setup(FAR struct fb_vtable_s *fb,
FAR struct nxfe_state_s *fe)
{
int ret;
/* Configure the framebuffer device */
ret = nxbe_fbconfigure(fb, &fe->be);
if (ret < 0)
{
gdbg("nxs_fbconfigure failed: %d\n", -ret);
errno = -ret;
return ERROR;
}
#if CONFIG_FB_CMAP
ret = nxbe_colormap(fb);
if (ret < 0)
{
gdbg("nx_colormap failed: %d\n", -ret);
errno = -ret;
return ERROR;
}
#endif
/* Initialize the mouse position */
#ifdef CONFIG_NX_MOUSE
nxsu_mouseinit(fe->be.vinfo.xres, fe->be.vinfo.yres);
#endif
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nx_open
*
* Description:
* Create, initialize and return an NX handle for use in subsequent
* NX API calls. nx_open is the single user equivalent of nx_connect
* plus nx_run.
*
* Input Parameters:
* fb - Vtable "object" of the framebuffer "driver" to use
* cb - Callbacks used to process received NX server messages
*
* Return:
* Success: A non-NULL handle used with subsequent NX accesses
* Failure: NULL is returned and errno is set appropriately
*
****************************************************************************/
NXHANDLE nx_open(FAR struct fb_vtable_s *fb, FAR const struct nx_callback_s *cb)
{
FAR struct nxfe_state_s *fe;
int ret;
/* Sanity checking */
#ifdef CONFIG_DEBUG
if (!cb)
{
errno = EINVAL;
return NULL;
}
#endif
/* Allocate the NX state structure */
fe = (FAR struct nxfe_state_s *)zalloc(sizeof(struct nxfe_state_s));
if (!fe)
{
errno = ENOMEM;
return NULL;
}
/* Save the callback vtable */
fe->cb = cb;
/* Initialize and configure the server */
ret = nxsu_setup(fb, fe);
if (ret < 0)
{
return NULL; /* nxsu_setup sets errno */
}
return (NXHANDLE)fe;
}
