Adds support for TM4C123G timers; integrates with the TM4C123G Launchpad. From Calvin Maguranis

configs/tm4c123g-launchpad/nsh/defconfig

@@ -42,8 +42,9 @@ CONFIG_RAW_BINARY=y
 # Debug Options
 #
 # CONFIG_DEBUG is not set
-CONFIG_ARCH_HAVE_STACKCHECK=y
 # CONFIG_ARCH_HAVE_HEAPCHECK is not set
+CONFIG_ARCH_HAVE_STACKCHECK=y
+# CONFIG_STACK_COLORATION is not set
 # CONFIG_DEBUG_SYMBOLS is not set
 CONFIG_ARCH_HAVE_CUSTOMOPT=y
 # CONFIG_DEBUG_NOOPT is not set
@@ -121,21 +122,51 @@ CONFIG_ARMV7M_OABI_TOOLCHAIN=y
 #
 # CONFIG_ARCH_CHIP_TM4C123GH6ZRB is not set
 CONFIG_ARCH_CHIP_TM4C123GH6PMI=y
+# CONFIG_ARCH_CHIP_TM4C1294NC is not set
+# CONFIG_ARCH_CHIP_TM4C129XNC is not set
 # CONFIG_ARCH_CHIP_CC3200 is not set
-CONFIG_ARCH_CHIP_TM4C=y
 CONFIG_ARCH_CHIP_TM4C123=y
+CONFIG_ARCH_CHIP_TM4C=y
 # CONFIG_TIVA_BOARD_EARLYINIT is not set
 
 #
 # Tiva/Stellaris Peripheral Support
 #
+# CONFIG_TIVA_ADC is not set
+CONFIG_TIVA_HAVE_ADC0=y
+CONFIG_TIVA_HAVE_ADC1=y
+# CONFIG_TIVA_I2C is not set
+CONFIG_TIVA_HAVE_I2C1=y
 CONFIG_TIVA_HAVE_I2C2=y
 CONFIG_TIVA_HAVE_I2C3=y
+# CONFIG_TIVA_HAVE_I2C4 is not set
+# CONFIG_TIVA_HAVE_I2C5 is not set
+# CONFIG_TIVA_HAVE_I2C6 is not set
+# CONFIG_TIVA_HAVE_I2C7 is not set
+# CONFIG_TIVA_HAVE_I2C8 is not set
+# CONFIG_TIVA_HAVE_I2C9 is not set
 CONFIG_TIVA_HAVE_UART3=y
 CONFIG_TIVA_HAVE_UART4=y
 CONFIG_TIVA_HAVE_UART5=y
 CONFIG_TIVA_HAVE_UART6=y
 CONFIG_TIVA_HAVE_UART7=y
+CONFIG_TIVA_HAVE_SSI0=y
+CONFIG_TIVA_HAVE_SSI1=y
+CONFIG_TIVA_HAVE_SSI2=y
+CONFIG_TIVA_HAVE_SSI3=y
+# CONFIG_TIVA_HAVE_ETHERNET is not set
+CONFIG_TIVA_SSI=y
+# CONFIG_TIVA_TIMER is not set
+CONFIG_TIVA_HAVE_TIMER0=y
+CONFIG_TIVA_HAVE_TIMER1=y
+CONFIG_TIVA_HAVE_TIMER2=y
+CONFIG_TIVA_HAVE_TIMER3=y
+CONFIG_TIVA_HAVE_TIMER4=y
+CONFIG_TIVA_HAVE_TIMER5=y
+# CONFIG_TIVA_HAVE_TIMER6 is not set
+# CONFIG_TIVA_HAVE_TIMER7 is not set
+# CONFIG_TIVA_ADC0 is not set
+# CONFIG_TIVA_ADC1 is not set
 # CONFIG_TIVA_I2C0 is not set
 # CONFIG_TIVA_I2C1 is not set
 # CONFIG_TIVA_I2C2 is not set
@@ -150,27 +181,46 @@ CONFIG_TIVA_UART0=y
 # CONFIG_TIVA_UART7 is not set
 CONFIG_TIVA_SSI0=y
 # CONFIG_TIVA_SSI1 is not set
+# CONFIG_TIVA_SSI2 is not set
+# CONFIG_TIVA_SSI3 is not set
+# CONFIG_TIVA_TIMER0 is not set
+# CONFIG_TIVA_TIMER1 is not set
+# CONFIG_TIVA_TIMER2 is not set
+# CONFIG_TIVA_TIMER3 is not set
+# CONFIG_TIVA_TIMER4 is not set
+# CONFIG_TIVA_TIMER5 is not set
 # CONFIG_TIVA_ETHERNET is not set
 # CONFIG_TIVA_FLASH is not set
 
 #
-# Disable GPIO Interrupts
+# Enable GPIO Interrupts
 #
+CONFIG_TIVA_GPIO_IRQS=y
+CONFIG_TIVA_HAVE_GPIOA_IRQS=y
+CONFIG_TIVA_HAVE_GPIOB_IRQS=y
+CONFIG_TIVA_HAVE_GPIOC_IRQS=y
+CONFIG_TIVA_HAVE_GPIOD_IRQS=y
+CONFIG_TIVA_HAVE_GPIOE_IRQS=y
+CONFIG_TIVA_HAVE_GPIOF_IRQS=y
+# CONFIG_TIVA_HAVE_GPIOG_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOH_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOJ_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOK_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOL_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOM_IRQS is not set
+# CONFIG_TIVA_HAVE_GPION_IRQS is not set
+CONFIG_TIVA_HAVE_GPIOP_IRQS=y
+# CONFIG_TIVA_HAVE_GPIOQ_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOR_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOS_IRQS is not set
+# CONFIG_TIVA_HAVE_GPIOT_IRQS is not set
 CONFIG_TIVA_GPIOA_IRQS=y
 CONFIG_TIVA_GPIOB_IRQS=y
 CONFIG_TIVA_GPIOC_IRQS=y
 CONFIG_TIVA_GPIOD_IRQS=y
 CONFIG_TIVA_GPIOE_IRQS=y
 CONFIG_TIVA_GPIOF_IRQS=y
-CONFIG_TIVA_GPIOG_IRQS=y
-# CONFIG_TIVA_GPIOH_IRQS is not set
-# CONFIG_TIVA_GPIOJ_IRQS is not set
-CONFIG_TIVA_GPIOK_IRQS=y
-CONFIG_TIVA_GPIOL_IRQS=y
-CONFIG_TIVA_GPIOM_IRQS=y
-CONFIG_TIVA_GPION_IRQS=y
 CONFIG_TIVA_GPIOP_IRQS=y
-CONFIG_TIVA_GPIOQ_IRQS=y
 
 #
 # Tiva/Stellaris SSI Configuration
@@ -423,6 +473,8 @@ CONFIG_ARCH_HAVE_UART0=y
 #
 CONFIG_MCU_SERIAL=y
 CONFIG_STANDARD_SERIAL=y
+# CONFIG_SERIAL_IFLOWCONTROL is not set
+# CONFIG_SERIAL_OFLOWCONTROL is not set
 # CONFIG_ARCH_HAVE_SERIAL_TERMIOS is not set
 CONFIG_UART0_SERIAL_CONSOLE=y
 # CONFIG_OTHER_SERIAL_CONSOLE is not set
@@ -439,8 +491,6 @@ CONFIG_UART0_PARITY=0
 CONFIG_UART0_2STOP=0
 # CONFIG_UART0_IFLOWCONTROL is not set
 # CONFIG_UART0_OFLOWCONTROL is not set
-# CONFIG_SERIAL_IFLOWCONTROL is not set
-# CONFIG_SERIAL_OFLOWCONTROL is not set
 # CONFIG_USBDEV is not set
 # CONFIG_USBHOST is not set
 # CONFIG_WIRELESS is not set
@@ -624,7 +674,6 @@ CONFIG_EXAMPLES_NSH=y
 # CONFIG_EXAMPLES_THTTPD is not set
 # CONFIG_EXAMPLES_TIFF is not set
 # CONFIG_EXAMPLES_TOUCHSCREEN is not set
-# CONFIG_EXAMPLES_UDP is not set
 # CONFIG_EXAMPLES_WEBSERVER is not set
 # CONFIG_EXAMPLES_USBSERIAL is not set
 # CONFIG_EXAMPLES_USBTERM is not set
@@ -634,12 +683,14 @@ CONFIG_EXAMPLES_NSH=y
 # Graphics Support
 #
 # CONFIG_TIFF is not set
+# CONFIG_GRAPHICS_TRAVELER is not set
 
 #
 # Interpreters
 #
 # CONFIG_INTERPRETERS_FICL is not set
 # CONFIG_INTERPRETERS_PCODE is not set
+# CONFIG_INTERPRETERS_MICROPYTHON is not set
 
 #
 # Network Utilities
@@ -649,7 +700,6 @@ CONFIG_EXAMPLES_NSH=y
 # Networking Utilities
 #
 # CONFIG_NETUTILS_CODECS is not set
-# CONFIG_NETUTILS_DHCPD is not set
 # CONFIG_NETUTILS_FTPC is not set
 # CONFIG_NETUTILS_FTPD is not set
 # CONFIG_NETUTILS_JSON is not set
@@ -747,7 +797,7 @@ CONFIG_NSH_FILEIOSIZE=512
 #
 CONFIG_NSH_CONSOLE=y
 # CONFIG_NSH_ALTCONDEV is not set
-# CONFIG_NSH_ARCHINIT is not set
+CONFIG_NSH_ARCHINIT=y
 
 #
 # NxWidgets/NxWM
@@ -772,6 +822,11 @@ CONFIG_NSH_CONSOLE=y
 #
 # CONFIG_SYSTEM_CLE is not set
 
+#
+# CU Minimal Terminal
+#
+# CONFIG_SYSTEM_CUTERM is not set
+
 #
 # FLASH Program Installation
 #
@@ -843,6 +898,10 @@ CONFIG_READLINE_ECHO=y
 #
 # CONFIG_SYSTEM_SYSINFO is not set
 
+#
+# Temperature
+#
+
 #
 # VI Work-Alike Editor
 #

configs/tm4c123g-launchpad/src/Makefile

@@ -49,6 +49,10 @@ ifeq ($(CONFIG_NSH_ARCHINIT),y)
 CSRCS += tm4c_nsh.c
 endif
 
+ifeq ($(CONFIG_TIVA_TIMER),y)
+CSRCS += tm4c_timer.c
+endif
+
 ifeq ($(CONFIG_MTD_AT24XX),y)
 ifeq ($(CONFIG_TIVA_I2C0),y)
 CSRCS += tm4c_at24.c

configs/tm4c123g-launchpad/src/tm4c123g-launchpad.h

@@ -223,6 +223,20 @@ int tm4c_bringup(void);
 #ifdef HAVE_AT24
 int tm4c_at24_automount(int minor);
 #endif
+
+/****************************************************************************
+ * Name: tiva_timer_initialize
+ *
+ * Description:
+ *   Configure the timer driver
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_TIVA_TIMER
+int tiva_timer_initialize(void);
+#endif
+
+
 #endif /* __ASSEMBLY__ */
 #endif /* __CONFIGS_TM4C123G_LAUNCHPAD_TM4C123G_LAUNCHPAD_H */
 

configs/tm4c123g-launchpad/src/tm4c_bringup.c

@@ -47,7 +47,6 @@
  * Pre-Processor Definitions
  ****************************************************************************/
 
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -62,19 +61,31 @@
 
 int tm4c_bringup(void)
 {
-#ifdef HAVE_AT24
+#if defined (HAVE_AT24) || defined (CONFIG_TIVA_TIMER)
   int ret;
+#endif /* defined (HAVE_AT24) || defined (CONFIG_TIVA_TIMER) */
 
+#ifdef HAVE_AT24
   /* Initialize the AT24 driver */
 
   ret = tm4c_at24_automount(AT24_MINOR);
   if (ret < 0)
     {
       syslog(LOG_ERR, "ERROR: tm4c_at24_automount failed: %d\n", ret);
+      return ret;
     }
-
-  return ret;
-#else
-  return OK;
 #endif /* HAVE_AT24 */
+
+#ifdef CONFIG_TIVA_TIMER
+  /* Initialize the timer driver */
+
+  ret = tiva_timer_initialize();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize timer driver: %d\n", ret);
+      return ret;
+    }
+#endif /* CONFIG_TIVA_TIMER */
+
+  return OK;
 }

configs/tm4c123g-launchpad/src/tm4c_timer.c

@@ -0,0 +1,90 @@
+/****************************************************************************
+ * config/tm4c123g-launchpad/src/tm4c_timer.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ *   With modifications from Calvin Maguranis
+ *
+ * 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 <debug.h>
+
+#include "tiva_timer.h"
+#include "tm4c123g-launchpad.h"
+
+#ifdef CONFIG_TIVA_TIMER
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_TIVA_TIMER32_PERIODIC
+#  error CONFIG_TIVA_TIMER32_PERIODIC is not defined
+#endif
+
+#define GPTM 0
+#define CONFIG_TM4C_TIMER_DEVNAME "/dev/timer0"
+#define ALTCLK false
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: tiva_timer_initialize
+ *
+ * Description:
+ *   Configure the timer driver
+ *
+ ****************************************************************************/
+
+int tiva_timer_initialize(void)
+{
+  int ret;
+
+  timvdbg("Registering TIMER%d at %s\n", GPTM, CONFIG_TM4C_TIMER_DEVNAME);
+
+  ret = tiva_timer_register(CONFIG_TM4C_TIMER_DEVNAME, GPTM, ALTCLK);
+  if (ret < 0)
+    {
+      timdbg("ERROR: Failed to register timer driver: %d\n", ret);
+    }
+
+  return ret;
+}
+#endif /* CONFIG_TIVA_TIMER */