Added framebuffer interface
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1298 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -44,7 +44,7 @@ CSRCS = up_initialize.c up_idle.c up_interruptcontext.c \
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up_releasestack.c up_unblocktask.c up_blocktask.c \
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up_releasepending.c up_reprioritizertr.c \
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up_exit.c up_schedulesigaction.c up_allocateheap.c \
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up_devconsole.c
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up_devconsole.c up_framebuffer.c
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HOSTSRCS = up_stdio.c
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ifeq ($(CONFIG_FS_FAT),y)
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CSRCS += up_blockdevice.c up_deviceimage.c
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354
arch/sim/src/up_framebuffer.c
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354
arch/sim/src/up_framebuffer.c
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@ -0,0 +1,354 @@
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/****************************************************************************
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* arch/sim/src/up_framebuffer.c
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*
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* Copyright (C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/fb.h>
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#include "up_internal.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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#ifndef CONFIG_SIM_FBWIDTH
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# define CONFIG_SIM_FBWIDTH 480 /* Framebuffer width in pixels */
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#endif
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#ifndef CONFIG_SIM_FBHEIGHT
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# define CONFIG_SIM_FBHEIGHT 240 /* Framebuffer height in pixels */
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#endif
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#ifndef CONFIG_SIM_FBBPP
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# define CONFIG_SIM_FBBPP 16 /* Framebuffer bytes per pixel (RGB) */
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#endif
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#undef CONFIG_SIM_FBFMT
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#if CONFIG_SIM_FBBPP == 1
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# define FB_FMT FB_FMT_RGB1
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#elif CONFIG_SIM_FBBPP == 4
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# define FB_FMT FB_FMT_RGB4
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#elif CONFIG_SIM_FBBPP == 8
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# define FB_FMT FB_FMT_RGB8
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#elif CONFIG_SIM_FBBPP == 16
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# define FB_FMT FB_FMT_RGB16
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#elif CONFIG_SIM_FBBPP == 24
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# define FB_FMT FB_FMT_RGB24
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#elif CONFIG_SIM_FBBPP == 32
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# define FB_FMT FB_FMT_RGB32
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#else
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# error "Unsupported BPP"
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#endif
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/* Framebuffer characteristics in bytes */
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#define FB_WIDTH ((CONFIG_SIM_FBWIDTH * CONFIG_SIM_FBBPP + 7) / 8)
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#define FB_SIZE (FB_WIDTH * CONFIG_SIM_FBHEIGHT)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Get information about the video controller configuration and the configuration
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* of each color plane.
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*/
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static int up_getvideoinfo(FAR struct fb_vtable_s *vtable, FAR struct fb_videoinfo_s *vinfo);
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static int up_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno, FAR struct fb_planeinfo_s *pinfo);
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/* The following is provided only if the video hardware supports RGB color mapping */
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#if CONFIG_FB_CMAP
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static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
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static int up_putcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap);
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#endif
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/* The following is provided only if the video hardware supports a hardware cursor */
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#ifdef CONFIG_FB_HWCURSOR
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static int up_getcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_cursorattrib_s *attrib);
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static int up_setcursor(FAR struct fb_vtable_s *vtable, FAR struct fb_setcursor_s *setttings);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static ubyte g_fb[FB_SIZE];
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/* This structure describes the simulated video controller */
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static const struct fb_videoinfo_s g_videoinfo =
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{
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.fmt = FB_FMT,
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.xres = CONFIG_SIM_FBWIDTH,
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.yres = CONFIG_SIM_FBHEIGHT,
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.nplanes = 1,
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};
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/* This structure describes the single, simulated color plane */
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static const struct fb_planeinfo_s g_planeinfo =
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{
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.fbmem = (FAR void *)&g_fb,
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.fblen = FB_SIZE,
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.stride = FB_WIDTH,
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.bpp = CONFIG_SIM_FBBPP,
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};
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/* Simulated RGB mapping */
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#if CONFIG_FB_CMAP
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static struct fb_cmap_s g_cmap;
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#endif
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/* Current cursor position */
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#ifdef CONFIG_FB_HWCURSOR
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static struct fb_cursorpos_s g_cpos;
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/* Current cursor size */
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#ifdef CONFIG_FB_HWCURSORSIZE
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static struct fb_cursorsize_s g_csize;
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#endif
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#endif
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/* The framebuffer object -- There is no private state information in this simple
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* framebuffer simulation.
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*/
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struct fb_vtable_s g_fbobject =
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{
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.getvideoinfo = up_getvideoinfo,
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.getplaneinfo = up_getplaneinfo,
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#if CONFIG_FB_CMAP
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.getcmap = up_getcmap,
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.putcmap = up_putcmap,
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#endif
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#ifdef CONFIG_FB_HWCURSOR
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.getcursor = up_getcursor,
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.setcursor = up_setcursor,
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#endif
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name:
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****************************************************************************/
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static int up_getvideoinfo(FAR struct fb_vtable_s *vtable,
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FAR struct fb_videoinfo_s *vinfo)
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{
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dbg("vtable=%p vinfo=%p\n", vtable, vinfo);
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if (vtable && vinfo)
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{
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memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: up_getplaneinfo
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****************************************************************************/
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static int up_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno,
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FAR struct fb_planeinfo_s *pinfo)
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{
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dbg("vtable=%p planeno=%d pinfo=%p\n", vtable, planeno, pinfo);
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if (vtable && planeno == 0 && pinfo)
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{
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memcpy(pinfo, &g_planeinfo, sizeof(struct fb_planeinfo_s));
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: up_getcmap
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****************************************************************************/
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#if CONFIG_FB_CMAP
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static int up_getcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
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{
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int i;
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dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
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if (vtable && cmap)
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{
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cmap->len = 256;
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for (i = 0; i < 256, i++)
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{
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cmap->red[i] = i;
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cmap->green[i] = i;
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cmap->blue[i] = i;
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#ifdef CONFIG_FB_TRANSPARENCY
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cmap->transp[i] = i;
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#endif
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}
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name: up_putcmap
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****************************************************************************/
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#if CONFIG_FB_CMAP
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static int up_putcmap(FAR struct fb_vtable_s *vtable, FAR struct fb_cmap_s *cmap)
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{
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dbg("vtable=%p cmap=%p cmap->len\n", vtable, cmap, cmap->len);
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if (vtable && cmap)
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{
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name: up_getcursor
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****************************************************************************/
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#ifdef CONFIG_FB_HWCURSOR
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static int up_getcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_cursorattrib_s *attrib)
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{
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dbg("vtable=%p attrib=%p\n", vtable, attrib);
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if (vtable && attrib)
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{
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#ifdef CONFIG_FB_HWCURSORIMAGE
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attrib->fmt = FB_FMT;
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#endif
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dbg("pos: (x=%d, y=%d)\n", g_cpos.x, g_cpos.y);
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attrib->pos = g_cpos;
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#ifdef CONFIG_FB_HWCURSORSIZE
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attrib->mxsize.h = CONFIG_SIM_FBHEIGHT;
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attrib->mxsize.w = CONFIG_SIM_FBWIDTH;
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dbg("size: (h=%d, w=%d)\n", g_csize.h, g_csize.w);
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attrib->size = g_csize;
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#endif
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Name:
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****************************************************************************/
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#ifdef CONFIG_FB_HWCURSOR
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static int up_setcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_setcursor_s *setttings)
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{
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dbg("vtable=%p setttings=%p\n", vtable, setttings);
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if (vtable && setttings)
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{
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dbg("flags: %02x\n", settings->flags);
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if ((flags & FB_CUR_SETPOSITION) != 0)
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{
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g_cpos = settings->pos;
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dbg("pos: (h:%d, w:%d)\n", g_cpos.x, g_cpos.y);
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}
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#ifdef CONFIG_FB_HWCURSORSIZE
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if ((flags & FB_CUR_SETSIZE) != 0)
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{
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g_csize = settings->size;
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dbg("size: (h:%d, w:%d)\n", g_csize.h, g_csize.w);
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}
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#endif
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#ifdef CONFIG_FB_HWCURSORIMAGE
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if ((flags & FB_CUR_SETIMAGE) != 0)
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{
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dbg("image: (h:%d, w:%d) @ %p\n",
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settings->img.height, settings->img.width, settings->img.image);
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}
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#endif
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return OK;
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}
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dbg("Returning EINVAL\n");
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return -EINVAL;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_getfbobject
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*
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* Description:
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* Get a reference to the framebuffer object
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*
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* Input parameters:
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* None
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*
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* Returned value:
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* Reference to the framebuffer object (NULL on failure)
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*
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****************************************************************************/
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FAR const struct fb_vtable_s *up_getfbobject(void)
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{
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return &g_fbobject;
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}
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