diff options
Diffstat (limited to 'nuttx/graphics/nxconsole/nxcon_register.c')
-rw-r--r-- | nuttx/graphics/nxconsole/nxcon_register.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/nuttx/graphics/nxconsole/nxcon_register.c b/nuttx/graphics/nxconsole/nxcon_register.c new file mode 100644 index 000000000..cadda7394 --- /dev/null +++ b/nuttx/graphics/nxconsole/nxcon_register.c @@ -0,0 +1,160 @@ +/**************************************************************************** + * nuttx/graphics/nxconsole/nxcon_register.c + * + * Copyright (C) 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 <sys/types.h> +#include <stdbool.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/kmalloc.h> +#include <nuttx/fs/fs.h> + +#include "nxcon_internal.h" + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxcon_allocate + ****************************************************************************/ + +FAR struct nxcon_state_s * + nxcon_register(NXCONSOLE handle, FAR struct nxcon_window_s *wndo, + FAR const struct nxcon_operations_s *ops, int minor) +{ + FAR struct nxcon_state_s *priv; + char devname[NX_DEVNAME_SIZE]; + int ret; + + DEBUGASSERT(handle && wndo && ops && (unsigned)minor < 256); + + /* Allocate the driver structure */ + + priv = (FAR struct nxcon_state_s *)kzalloc(sizeof(struct nxcon_state_s)); + if (!priv) + { + gdbg("Failed to allocate the NX driver structure\n"); + return NULL; + } + + /* Initialize the driver structure */ + + priv->ops = ops; + priv->handle = handle; + priv->minor = minor; + memcpy(&priv->wndo, wndo, sizeof( struct nxcon_window_s)); + + sem_init(&priv->exclsem, 0, 1); +#ifdef CONFIG_DEBUG + priv->holder = NO_HOLDER; +#endif + +#ifdef CONFIG_NXCONSOLE_NXKBDIN + sem_init(&priv->waitsem, 0, 0); +#endif + + /* Select the font */ + + priv->font = nxf_getfonthandle(wndo->fontid); + if (!priv->font) + { + gdbg("Failed to get font ID %d: %d\n", wndo->fontid, errno); + goto errout; + } + + FAR const struct nx_font_s *fontset; + + /* Get information about the font set being used and save this in the + * state structure + */ + + fontset = nxf_getfontset(priv->font); + priv->fheight = fontset->mxheight; + priv->fwidth = fontset->mxwidth; + priv->spwidth = fontset->spwidth; + + /* Set up the text cache */ + + priv->maxchars = CONFIG_NXCONSOLE_MXCHARS; + + /* Set up the font glyph bitmap cache */ + + priv->maxglyphs = CONFIG_NXCONSOLE_CACHESIZE; + + /* Set the initial display position */ + + nxcon_home(priv); + + /* Show the cursor */ + + priv->cursor.code = CONFIG_NXCONSOLE_CURSORCHAR; + nxcon_showcursor(priv); + + /* Register the driver */ + + snprintf(devname, NX_DEVNAME_SIZE, NX_DEVNAME_FORMAT, minor); + ret = register_driver(devname, &g_nxcon_drvrops, 0666, priv); + if (ret < 0) + { + gdbg("Failed to register %s\n", devname); + } + return (NXCONSOLE)priv; + +errout: + kfree(priv); + return NULL; +} |