Implement the GPIO HAL for platform native

arch/cpu/native/Makefile.native

@@ -1,6 +1,7 @@
 CONTIKI_CPU_DIRS = . net dev
 
 CONTIKI_SOURCEFILES += rtimer-arch.c watchdog.c eeprom.c int-master.c
+CONTIKI_SOURCEFILES += gpio-hal-arch.c
 
 ### Compiler definitions
 CC       ?= gcc

arch/cpu/native/dev/gpio-hal-arch.c

@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2018, George Oikonomou - http://www.spd.gr
+ * All rights reserved.
+ *
+ * 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 of the copyright holder 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 HOLDER 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 "contiki.h"
+#include "dev/gpio-hal.h"
+#include "sys/log.h"
+
+#include <stdint.h>
+/*---------------------------------------------------------------------------*/
+/* Log configuration */
+#define LOG_MODULE "GPIO arch"
+#define LOG_LEVEL LOG_LEVEL_NONE
+/*---------------------------------------------------------------------------*/
+static gpio_hal_pin_cfg_t pin_cfg[GPIO_HAL_PIN_COUNT];
+static uint8_t pin_state[GPIO_HAL_PIN_COUNT];
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_interrupt_enable(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  LOG_DBG("Pin %u: Enabled interrupt\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_interrupt_disable(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  LOG_DBG("Pin %u: Disabled interrupt\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_pin_cfg_set(gpio_hal_pin_t pin, gpio_hal_pin_cfg_t cfg)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  pin_cfg[pin] = cfg;
+  LOG_DBG("Pin %u: Set config=0x%02x\n", pin, pin_cfg[pin]);
+}
+/*---------------------------------------------------------------------------*/
+gpio_hal_pin_cfg_t
+gpio_hal_arch_pin_cfg_get(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return 0;
+  }
+
+  LOG_DBG("Pin %u: Config=0x%02x\n", pin, pin_cfg[pin]);
+  return pin_cfg[pin];
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_pin_set_input(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  LOG_DBG("Pin %u: Set input\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_pin_set_output(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  LOG_DBG("Pin %u: Set output\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_set_pin(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  pin_state[pin] = 1;
+  LOG_DBG("Pin %u: Set\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_clear_pin(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  pin_state[pin] = 0;
+  LOG_DBG("Pin %u: Clear\n", pin);
+}
+/*---------------------------------------------------------------------------*/
+uint8_t
+gpio_hal_arch_read_pin(gpio_hal_pin_t pin)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return 0;
+  }
+
+  LOG_DBG("Pin %u: Read=%u\n", pin, pin_state[pin]);
+  return pin_state[pin];
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_write_pin(gpio_hal_pin_t pin, uint8_t value)
+{
+  if(pin >= GPIO_HAL_PIN_COUNT) {
+    LOG_ERR("Pin %u out of bounds\n", pin);
+    return;
+  }
+
+  pin_state[pin] = value;
+  LOG_DBG("Pin %u: Write=%u\n", pin, pin_state[pin]);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_set_pins(gpio_hal_pin_mask_t pins)
+{
+  gpio_hal_pin_t pin;
+
+  for(pin = 0; pin < GPIO_HAL_PIN_COUNT; pin++) {
+    if(pins & (1 << pin)) {
+      pin_state[pin] = 1;
+    }
+  }
+
+  LOG_DBG("Set pins 0x%08" PRIx32 "\n", pins);
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_clear_pins(gpio_hal_pin_mask_t pins)
+{
+  gpio_hal_pin_t pin;
+
+  for(pin = 0; pin < GPIO_HAL_PIN_COUNT; pin++) {
+    if(pins & (1 << pin)) {
+      pin_state[pin] = 0;
+    }
+  }
+
+  LOG_DBG("Clear pins 0x%08" PRIx32 "\n", pins);
+}
+/*---------------------------------------------------------------------------*/
+gpio_hal_pin_mask_t
+gpio_hal_arch_read_pins(gpio_hal_pin_mask_t pins)
+{
+  gpio_hal_pin_t pin;
+  gpio_hal_pin_mask_t state = 0;
+
+  for(pin = 0; pin < GPIO_HAL_PIN_COUNT; pin++) {
+    state |= (pin_state[pin] << pin);
+  }
+
+  LOG_DBG("Read pins 0x%08" PRIx32 "\n", state);
+  return state;
+}
+/*---------------------------------------------------------------------------*/
+void
+gpio_hal_arch_write_pins(gpio_hal_pin_mask_t pins, gpio_hal_pin_mask_t value)
+{
+  gpio_hal_pin_t pin;
+
+  for(pin = 0; pin < GPIO_HAL_PIN_COUNT; pin++) {
+    if(pins & (1 << pin)) {
+      pin_state[pin] = (value & (1 << pin)) == 0 ? 0 : 1;
+    }
+  }
+
+  LOG_DBG("Write pins 0x%08" PRIx32 "->0x%08" PRIx32 "\n", pins, value);
+}
+/*---------------------------------------------------------------------------*/

arch/cpu/native/native-def.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018, George Oikonomou - http://www.spd.gr
+ * All rights reserved.
+ *
+ * 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 of the copyright holder 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 HOLDER 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.
+ */
+/*---------------------------------------------------------------------------*/
+#ifndef NATIVE_DEF_H_
+#define NATIVE_DEF_H_
+/*---------------------------------------------------------------------------*/
+#define GPIO_HAL_CONF_ARCH_SW_TOGGLE 1
+/*---------------------------------------------------------------------------*/
+#endif /* NATIVE_DEF_H_ */
+/*---------------------------------------------------------------------------*/

arch/platform/native/contiki-conf.h

@@ -37,7 +37,9 @@
 #ifdef PROJECT_CONF_PATH
 #include PROJECT_CONF_PATH
 #endif /* PROJECT_CONF_PATH */
-
+/*---------------------------------------------------------------------------*/
+#include "native-def.h"
+/*---------------------------------------------------------------------------*/
 #include <inttypes.h>
 #ifndef WIN32_LEAN_AND_MEAN
 #include <sys/select.h>

arch/platform/native/platform.c

@@ -57,6 +57,7 @@
 
 #include "dev/serial-line.h"
 #include "dev/button-hal.h"
+#include "dev/gpio-hal.h"
 
 #include "net/ipv6/uip.h"
 #include "net/ipv6/uip-debug.h"
@@ -252,6 +253,7 @@ platform_process_args(int argc, char**argv)
 void
 platform_init_stage_one()
 {
+  gpio_hal_init();
   button_hal_init();
   return;
 }