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author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-12-19 19:24:09 +0000 |
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committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-12-19 19:24:09 +0000 |
commit | add995c32e86f9de8fa8fc05172435332c25a895 (patch) | |
tree | 0191fde92a5c4dcd55a24b2aa760fa4c88713242 /apps/examples/lcdrw | |
download | px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.tar.gz px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.tar.bz2 px4-firmware-add995c32e86f9de8fa8fc05172435332c25a895.zip |
Completes coding of the PWM module
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'apps/examples/lcdrw')
-rw-r--r-- | apps/examples/lcdrw/Makefile | 105 | ||||
-rw-r--r-- | apps/examples/lcdrw/lcdrw_main.c | 262 |
2 files changed, 367 insertions, 0 deletions
diff --git a/apps/examples/lcdrw/Makefile b/apps/examples/lcdrw/Makefile new file mode 100644 index 000000000..053c62670 --- /dev/null +++ b/apps/examples/lcdrw/Makefile @@ -0,0 +1,105 @@ +############################################################################ +# apps/examples/lcdrw/Makefile +# +# Copyright (C) 2011 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. +# +############################################################################ + +-include $(TOPDIR)/.config +-include $(TOPDIR)/Make.defs +include $(APPDIR)/Make.defs + +# LCD Read/Write Test + +ASRCS = +CSRCS = lcdrw_main.c + +AOBJS = $(ASRCS:.S=$(OBJEXT)) +COBJS = $(CSRCS:.c=$(OBJEXT)) + +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) + +ifeq ($(WINTOOL),y) + BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}" +else + BIN = "$(APPDIR)/libapps$(LIBEXT)" +endif + +ROOTDEPPATH = --dep-path . + +# LCD R/W built-in application info + +APPNAME = lcdrw +PRIORITY = SCHED_PRIORITY_DEFAULT +STACKSIZE = 2048 + +# Common build + +VPATH = + +all: .built +.PHONY: clean depend distclean + +$(AOBJS): %$(OBJEXT): %.S + $(call ASSEMBLE, $<, $@) + +$(COBJS): %$(OBJEXT): %.c + $(call COMPILE, $<, $@) + +.built: $(OBJS) + @( for obj in $(OBJS) ; do \ + $(call ARCHIVE, $(BIN), $${obj}); \ + done ; ) + @touch .built + +.context: +ifeq ($(CONFIG_EXAMPLES_LCDRW_BUILTIN),y) + $(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main) + @touch $@ +endif + +context: .context + +.depend: Makefile $(SRCS) + @$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep + @touch $@ + +depend: .depend + +clean: + @rm -f *.o *~ .*.swp .built + $(call CLEAN) + +distclean: clean + @rm -f Make.dep .depend + +-include Make.dep diff --git a/apps/examples/lcdrw/lcdrw_main.c b/apps/examples/lcdrw/lcdrw_main.c new file mode 100644 index 000000000..4b717666f --- /dev/null +++ b/apps/examples/lcdrw/lcdrw_main.c @@ -0,0 +1,262 @@ +/**************************************************************************** + * examples/lcdrw/lcdrw_main.c + * + * Copyright (C) 2011 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 <stdio.h> +#include <stdlib.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ +/* Configuration ************************************************************/ +/* Most of the NX configuration settings are probbably *not* needed by this + * example. But, presumeably you are using NX too and so the checks might + * be good for you. + */ + +#ifndef CONFIG_NX +# error "CONFIG_NX must be defined to use this test" +#endif + +#ifndef CONFIG_NX_LCDDRIVER +# error "CONFIG_NX_LCDDRIVER must be defined to use this test" +#endif + +#ifndef CONFIG_EXAMPLES_LCDRW_BPP +# define CONFIG_EXAMPLES_LCDRW_BPP 16 +#endif + +#if CONFIG_EXAMPLES_LCDRW_BPP != 16 +# error "Currently only RGB565 is supported -- feel free to extend" +#endif + +#ifdef CONFIG_NX_DISABLE_16BPP +# error "CONFIG_NX_DISABLE_16BPP disables 16-bit support" +#endif + +#ifndef CONFIG_EXAMPLES_LDCRW_DEVNO +# define CONFIG_EXAMPLES_LDCRW_DEVNO 0 +#endif + +#ifndef CONFIG_EXAMPLES_LDCRW_XRES +# define CONFIG_EXAMPLES_LDCRW_XRES 240 +#endif + +#ifndef CONFIG_EXAMPLES_LDCRW_YRES +# define CONFIG_EXAMPLES_LDCRW_YRES 320 +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct lcdrw_instance_s +{ + /* LCD device handle and planeinfo */ + + FAR struct lcd_dev_s *dev; + struct lcd_planeinfo_s pinfo; +}; + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ +/**************************************************************************** + * Name: lcdrw_initialize + ****************************************************************************/ + +static inline int lcdrw_initialize(FAR struct lcdrw_instance_s *inst) +{ + int ret; + + /* Initialize the LCD device */ + + printf("screens_initialize: Initializing LCD\n"); + ret = up_lcdinitialize(); + if (ret < 0) + { + fprintf(stderr, "screens_initialize: up_lcdinitialize failed: %d\n", -ret); + return ret; + } + + /* Get the device instance. */ + + printf("Get LCD instance\n"); + inst->dev = up_lcdgetdev(CONFIG_EXAMPLES_LDCRW_DEVNO); + if (!inst->dev) + { + fprintf(stderr, "up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_LDCRW_DEVNO); + return ret; + } + + /* Turn the LCD on at 75% power. This should not be necessary. */ + + (void)inst->dev->setpower(inst->dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4)); + + /* Get the planeinfo structure */ + + ret = inst->dev->getplaneinfo(inst->dev, 0, &inst->pinfo); + if (ret < 0) + { + fprintf(stderr, "getplaneinfo failed: %d\n", ret); + } + return ret; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lcdrw_main/user_start + ****************************************************************************/ + +#ifdef CONFIG_EXAMPLES_LCDRW_BUILTIN +# define MAIN_NAME lcdrw_main +#else +# define MAIN_NAME user_start +#endif + +int MAIN_NAME(int argc, char *argv[]) +{ + struct lcdrw_instance_s inst; + nxgl_coord_t row; + nxgl_coord_t col; + uint16_t value; + uint32_t offset; + FAR uint16_t *ptr; + int ret; + + /* Initialize the LCD driver */ + + ret = lcdrw_initialize(&inst); + if (ret < 0) + { + exit(1); + } + + /* Then read each line from the LCD and write to the TIFF file */ + + value = 0; + for (row = 0; row < CONFIG_EXAMPLES_LDCRW_YRES; row++) + { + /* Create a dummy row. The important thing is to try all + * bit combinations in a predictable way. + */ + + ptr = (FAR uint16_t*)inst.pinfo.buffer; + for (col = 0; col < CONFIG_EXAMPLES_LDCRW_XRES; col++) + { + *ptr++ = value++; + } + + /* Write the row to the LCD */ + + ret = inst.pinfo.putrun(row, 0, inst.pinfo.buffer, + CONFIG_EXAMPLES_LDCRW_XRES); + if (ret < 0) + { + fprintf(stderr, "putrun failed: %d\n", ret); + exit(1); + } + } + + /* Print a header */ + + printf(" "); + for (col = 0; col < 15; col++) + { + printf("---%x ", col); + } + printf("---f\n"); + + /* Then read each line back from the LCD (this would hook into + * the TIFF file creation library *very* easily to create a + * TIFF file of the returned values). + */ + + offset = 0; + for (row = 0; row < CONFIG_EXAMPLES_LDCRW_YRES; row++) + { + /* Read the row */ + + ret = inst.pinfo.getrun(row, 0, inst.pinfo.buffer, + CONFIG_EXAMPLES_LDCRW_XRES); + if (ret < 0) + { + fprintf(stderr, "getrun failed: %d\n", ret); + exit(1); + } + + /* Then dump the row to the display */ + + ptr = (FAR uint16_t*)inst.pinfo.buffer; + for (col = 0; col < CONFIG_EXAMPLES_LDCRW_XRES; col++) + { + if ((offset & 15) == 0) + { + printf("%06x ", offset); + } + + value = *ptr++; + offset++; + + if ((offset & 15) == 0) + { + printf("%04x\n", value); + } + else + { + printf("%04x ", value); + } + } + } + fflush(stdout); + + return 0; +} + |