Hello,
I have proposed in GSoC on Beagle BSP Improvements. As starting I started
working for gpio driver development . At this stage I am able to
demonstrate USR LEDs pattern.
Videos of that can be found here on YouTube.
https://youtu.be/B3mSsfo-PAQ &
https://youtu.be/M1aKpOhUvv4.
Herewith I have attached patch.txt file. Alternatively you can have
https://gist.github.com/ketul93/2e0d2c4b8b586be62e1d that includes the
newly added files code. I would be happy to hear your reviews and changes
on my work.
And also I have been updating my work on
https://github.com/ketul93/RTEMS-on-BBB repo.
It would be great to have your comments on my proposal
<https://docs.google.com/document/d/1CFv4u_SCgrHmES3eQqhRlDcKrJ1zsrbkix8hENIkXBM/edit?usp=sharing>
.
Thanks and regards,
ketul
commit 67a0aafa3b2e66419143f0acd65df3c9bd3498a0
Author: ketul93 <ketulshah1...@gmail.com>
Date: Fri Apr 17 16:59:45 2015 +0530
GPIO driver developement and simple USR LEDs demo on BeagleBone Black
diff --git a/c/src/lib/libbsp/arm/beagle/Makefile.am
b/c/src/lib/libbsp/arm/beagle/Makefile.am
index abef8ba..56f1afb 100644
--- a/c/src/lib/libbsp/arm/beagle/Makefile.am
+++ b/c/src/lib/libbsp/arm/beagle/Makefile.am
@@ -39,6 +39,8 @@ include_bsp_HEADERS += ../shared/include/arm-release-id.h
include_bsp_HEADERS += ../shared/include/start.h
include_bsp_HEADERS += include/irq.h
include_bsp_HEADERS += include/i2c.h
+include_bsp_HEADERS += include/beagleboard.h
+include_bsp_HEADERS += include/gpio.h
include_libcpu_HEADERS =
include_libcpu_HEADERS += ../../../libcpu/arm/shared/include/arm-cp15.h
@@ -110,6 +112,10 @@ libbsp_a_SOURCES += ../../shared/console.c \
../../shared/console_read.c \
../../shared/console_write.c \
../../shared/console_control.c
+# GPIO
+
+libbsp_a_SOURCES += gpio/gpio.c
+
# I2C
libbsp_a_SOURCES += misc/i2c.c
diff --git a/c/src/lib/libbsp/arm/beagle/gpio/gpio.c
b/c/src/lib/libbsp/arm/beagle/gpio/gpio.c
new file mode 100644
index 0000000..4c67020
--- /dev/null
+++ b/c/src/lib/libbsp/arm/beagle/gpio/gpio.c
@@ -0,0 +1,66 @@
+/**
+ * @file
+ *
+ * @ingroup arm_beagle
+ *
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * Copyright (c) 2015 Ketul Shah <ketulshah1993 at gmail.com>
+
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp/beagleboard.h>
+#include <bsp/irq.h>
+#include <bsp/gpio.h>
+#include <bsp.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+
+int is_initialized = 0;
+
+void gpio_initialize(void)
+{
+ if ( is_initialized )
+ return;
+
+ is_initialized = 1;
+ write32(AM335X_GPIO1_BASE +GPIO_OE,0x00000000); //Enabling GPIO1 pins as
OUTPUT PINs
+}
+
+
+ void gpio_set_value(unsigned gpio, int value)
+{
+
+ if (value)
+ {
+ uint8_t tmp = readb(AM335X_GPIO1_BASE +
gpio/8+GPIO_SETDATAOUT);
+ tmp |= (1 << gpio%8);
+ writeb(tmp, AM335X_GPIO1_BASE +
gpio/8+GPIO_SETDATAOUT);
+ }
+ else
+ {
+ uint8_t tmp = readb(AM335X_GPIO1_BASE +
gpio/8+GPIO_CLEARDATAOUT);
+ tmp |= (1 << gpio%8);
+ writeb(tmp, AM335X_GPIO1_BASE +
gpio/8+GPIO_CLEARDATAOUT);
+
+ }
+
+}
+
+void allgpioset(void)
+{
+printf("Setting all gpio1\n");
+write32(AM335X_GPIO1_BASE +GPIO_SETDATAOUT,0xFFFFFFFF);
+}
+
+void allgpioclr(void)
+{
+printf("Clearing all gpio1\n");
+write32(AM335X_GPIO1_BASE+GPIO_CLEARDATAOUT,0xFFFFFFFF);
+}
diff --git a/c/src/lib/libbsp/arm/beagle/include/beagleboard.h
b/c/src/lib/libbsp/arm/beagle/include/beagleboard.h
new file mode 100644
index 0000000..c5eff7e
--- /dev/null
+++ b/c/src/lib/libbsp/arm/beagle/include/beagleboard.h
@@ -0,0 +1,38 @@
+/**
+ * @file
+ *
+ * @ingroup arm_beagle
+ *
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * Copyright (c) 2015 Ketul Shah <ketulshah1993 at gmail.com>
+
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef LIBBSP_ARM_BEAGLE_H
+#define LIBBSP_ARM_BEAGLE_H
+
+#include <stdint.h>
+#include <bsp/utility.h>
+
+/* GPIO Memory Registers */
+#define GPIO_REGISTER_SIZE (4)
+
+#define AM335X_GPIO0_BASE (0x44E07000)
+#define AM335X_GPIO1_BASE (0x4804C000)
+#define AM335X_GPIO2_BASE (0x481AC000)
+#define AM335X_GPIO3_BASE (0x481AE000)
+
+#define GPIO_CLEARDATAOUT (0x190)
+#define GPIO_SETDATAOUT (0x194)
+#define GPIO_OE (0x134)
+#define GPIO_DATAOUT (0x13C)
+#define GPIO_DATAIN (0x138)
+
+
+#endif
diff --git a/c/src/lib/libbsp/arm/beagle/include/gpio.h
b/c/src/lib/libbsp/arm/beagle/include/gpio.h
new file mode 100644
index 0000000..e59d1cb
--- /dev/null
+++ b/c/src/lib/libbsp/arm/beagle/include/gpio.h
@@ -0,0 +1,37 @@
+/**
+ * @file
+ *
+ * @ingroup arm_beagle
+ *
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * Copyright (c) 2015 Ketul Shah <ketulshah1993 at gmail.com>
+
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef LIBBSP_ARM_BEAGLE_GPIO_H
+#define LIBBSP_ARM_BEAGLE_GPIO_H
+
+#include <rtems.h>
+#include "beagleboard.h"
+
+#include <rtems.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+extern void gpio_initialize(void);
+
+extern void allgpioset(void);
+
+extern void allgpioclr(void);
+
+extern void gpio_set_value(unsigned gpio, int value);
+
+#endif /* LIBBSP_ARM_BEAGLE_GPIO_H */
diff --git a/c/src/lib/libbsp/arm/beagle/preinstall.am
b/c/src/lib/libbsp/arm/beagle/preinstall.am
index dd1ec95..6961630 100644
--- a/c/src/lib/libbsp/arm/beagle/preinstall.am
+++ b/c/src/lib/libbsp/arm/beagle/preinstall.am
@@ -110,6 +110,14 @@ $(PROJECT_INCLUDE)/bsp/i2c.h: include/i2c.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/i2c.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/i2c.h
+$(PROJECT_INCLUDE)/bsp/beagleboard.h: include/beagleboard.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/beagleboard.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/beagleboard.h
+
+$(PROJECT_INCLUDE)/bsp/gpio.h: include/gpio.h
$(PROJECT_INCLUDE)/bsp/$(dirstamp)
+ $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/gpio.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/gpio.h
+
$(PROJECT_INCLUDE)/libcpu/arm-cp15.h:
../../../libcpu/arm/shared/include/arm-cp15.h
$(PROJECT_INCLUDE)/libcpu/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/arm-cp15.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu/arm-cp15.h
diff --git a/c/src/lib/libbsp/arm/beagle/simscripts/bone_gpio.exe-sdcard.img
b/c/src/lib/libbsp/arm/beagle/simscripts/bone_gpio.exe-sdcard.img
new file mode 100644
index 0000000..d45fd3a
Binary files /dev/null and
b/c/src/lib/libbsp/arm/beagle/simscripts/bone_gpio.exe-sdcard.img differ
diff --git a/c/src/lib/libbsp/arm/beagle/startup/bspstart.c
b/c/src/lib/libbsp/arm/beagle/startup/bspstart.c
index b156564..9d92b95 100644
--- a/c/src/lib/libbsp/arm/beagle/startup/bspstart.c
+++ b/c/src/lib/libbsp/arm/beagle/startup/bspstart.c
@@ -16,6 +16,7 @@
#include <bsp/bootcard.h>
#include <bsp/irq-generic.h>
+
void bsp_start(void)
{
#if IS_DM3730
diff --git a/c/src/lib/libbsp/bfin/acinclude.m4
b/c/src/lib/libbsp/bfin/acinclude.m4
index ab6082e..828fd89 100644
--- a/c/src/lib/libbsp/bfin/acinclude.m4
+++ b/c/src/lib/libbsp/bfin/acinclude.m4
@@ -2,12 +2,12 @@
AC_DEFUN([RTEMS_CHECK_BSPDIR],
[
case "$1" in
- TLL6527M )
- AC_CONFIG_SUBDIRS([TLL6527M]);;
bf537Stamp )
AC_CONFIG_SUBDIRS([bf537Stamp]);;
eZKit533 )
AC_CONFIG_SUBDIRS([eZKit533]);;
+ TLL6527M )
+ AC_CONFIG_SUBDIRS([TLL6527M]);;
*)
AC_MSG_ERROR([Invalid BSP]);;
esac
diff --git a/c/src/lib/libbsp/powerpc/acinclude.m4
b/c/src/lib/libbsp/powerpc/acinclude.m4
index 6442399..e46fa2b 100644
--- a/c/src/lib/libbsp/powerpc/acinclude.m4
+++ b/c/src/lib/libbsp/powerpc/acinclude.m4
@@ -38,12 +38,12 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
AC_CONFIG_SUBDIRS([t32mppc]);;
tqm8xx )
AC_CONFIG_SUBDIRS([tqm8xx]);;
- virtex )
- AC_CONFIG_SUBDIRS([virtex]);;
virtex4 )
AC_CONFIG_SUBDIRS([virtex4]);;
virtex5 )
AC_CONFIG_SUBDIRS([virtex5]);;
+ virtex )
+ AC_CONFIG_SUBDIRS([virtex]);;
*)
AC_MSG_ERROR([Invalid BSP]);;
esac
diff --git a/testsuites/samples/Makefile.am b/testsuites/samples/Makefile.am
index 08455d3..de4f351 100644
--- a/testsuites/samples/Makefile.am
+++ b/testsuites/samples/Makefile.am
@@ -1,6 +1,6 @@
ACLOCAL_AMFLAGS = -I ../aclocal
-_SUBDIRS = hello capture ticker base_sp unlimited minimum fileio
+_SUBDIRS = hello capture ticker base_sp unlimited minimum fileio gpio
if MPTESTS
## base_mp is a sample multiprocessing test
diff --git a/testsuites/samples/configure.ac b/testsuites/samples/configure.ac
index e6f12d0..ac32583 100644
--- a/testsuites/samples/configure.ac
+++ b/testsuites/samples/configure.ac
@@ -60,6 +60,7 @@ AC_CHECK_SIZEOF([time_t])
AC_CONFIG_FILES([Makefile
base_sp/Makefile
hello/Makefile
+gpio/Makefile
loopback/Makefile
minimum/Makefile
fileio/Makefile
diff --git a/testsuites/samples/gpio/Makefile.am
b/testsuites/samples/gpio/Makefile.am
new file mode 100644
index 0000000..d6009c8
--- /dev/null
+++ b/testsuites/samples/gpio/Makefile.am
@@ -0,0 +1,20 @@
+
+rtems_tests_PROGRAMS = gpio
+gpio_SOURCES = init.c
+
+dist_rtems_tests_DATA = gpio.scn
+dist_rtems_tests_DATA += gpio.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+
+LINK_OBJS = $(gpio_OBJECTS)
+LINK_LIBS = $(gpio_LDLIBS)
+
+gpio$(EXEEXT): $(gpio_OBJECTS) $(gpio_DEPENDENCIES)
+ @rm -f gpio$(EXEEXT)
+ $(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/samples/gpio/gpio.doc b/testsuites/samples/gpio/gpio.doc
new file mode 100644
index 0000000..9812864
--- /dev/null
+++ b/testsuites/samples/gpio/gpio.doc
@@ -0,0 +1,9 @@
+# COPYRIGHT (c) 1989-1999.
+# On-Line Applications Research Corporation (OAR).
+#
+# The license and distribution terms for this file may be
+# found in the file LICENSE in this distribution or at
+# http://www.rtems.org/license/LICENSE.
+#
+
+
diff --git a/testsuites/samples/gpio/gpio.scn b/testsuites/samples/gpio/gpio.scn
new file mode 100644
index 0000000..7dd6804
--- /dev/null
+++ b/testsuites/samples/gpio/gpio.scn
@@ -0,0 +1,3 @@
+*** GPIO TEST ***
+Gpio Test
+*** END OF GPIO TEST ***
diff --git a/testsuites/samples/gpio/init.c b/testsuites/samples/gpio/init.c
new file mode 100644
index 0000000..8514ed3
--- /dev/null
+++ b/testsuites/samples/gpio/init.c
@@ -0,0 +1,81 @@
+/*
+ * COPYRIGHT (c) 1989-2012.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <rtems.h>
+#include <rtems/test.h>
+
+#include <bsp/gpio.h> /* Calls the BSP gpio library */
+#include <rtems/status-checks.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void inline delaysec(float sec)
+{
+rtems_task_wake_after(sec*rtems_clock_get_ticks_per_second());
+}
+
+/*Function for USR LEDs demo.*/
+
+void inline gpio_auto()
+{
+/*Generating some patterns*/
+allgpioset();
+delaysec(1);
+allgpioclr();
+gpio_set_value(22,1);gpio_set_value(24,1);
+delaysec(0.4);
+gpio_set_value(22,1);gpio_set_value(24,0);
+delaysec(0.3);
+gpio_set_value(21,1);gpio_set_value(23,1);
+delaysec(0.5);
+gpio_set_value(22,0);gpio_set_value(24,0);
+delaysec(0.2);
+gpio_set_value(22,1);
+delaysec(0.2);
+allgpioclr();
+delaysec(0.1);
+}
+
+rtems_task Init(rtems_task_argument argument);
+
+const char rtems_test_name[] = "GPIO TEST";
+
+rtems_task Init(
+ rtems_task_argument ignored
+)
+{
+ rtems_test_begin();
+ printf("GPIO Testing started\n");
+ gpio_initialize();
+ allgpioclr();
+ gpio_auto();
+ printf( "GPIO TEST by Ketul\n" );
+ rtems_test_end();
+ exit( 0 );
+}
+
+
+/* NOTICE: the clock driver is explicitly disabled */
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS 1
+#define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_INIT
+#include <rtems/confdefs.h>
+
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