samples/gpio_dw: extends the app for GPIOs on quark_se_ss

The basic is the same for both architecture, but using different
GPIO controller and pins.

Change-Id: Ie021461858736d90a47bdef2c9d5e655e2efa473
Signed-off-by: Daniel Leung <daniel.leung@intel.com>

samples/nanokernel/apps/gpio_dw/Makefile

@@ -1,5 +1,10 @@
+ifeq ($(ARCH),arc)
+PLATFORM_CONFIG ?= quark_se_ss
+else
 PLATFORM_CONFIG ?= arduino_101
+endif
+
 KERNEL_TYPE ?= nano
-CONF_FILE = prj.conf
+CONF_FILE = prj_$(ARCH).conf
 
 include ${ZEPHYR_BASE}/Makefile.inc

samples/nanokernel/apps/gpio_dw/prj_arc.conf

@@ -0,0 +1,9 @@
+CONFIG_STDOUT_CONSOLE=y
+CONFIG_PRINTK=y
+CONFIG_GPIO=y
+CONFIG_GPIO_DW=y
+CONFIG_GPIO_DW_0=y
+CONFIG_GPIO_DW_0_BITS=8
+CONFIG_NANO_TIMERS=y
+CONFIG_NANO_TIMEOUTS=y
+CONFIG_DEBUG=y

samples/nanokernel/apps/gpio_dw/src/main.c

@@ -15,12 +15,15 @@
  */
 
 /**
- * @file Sample app to utilize GPIO on Arduino 101, x86 side.
+ * @file Sample app to utilize GPIO on Arduino 101.
+ *
+ * x86
+ * --------------------
  *
  * On x86 side of Arduino 101:
  * 1. GPIO_16 is on IO8
  * 2. GPIO_19 is on IO4
- *
+
  * The gpio_dw driver is being used.
  *
  * This sample app toggles GPIO_16/IO8. It also waits for
@@ -32,7 +35,39 @@
  * "
  *     Toggling GPIO_16
  *     Toggling GPIO_16
- *     GPIO 19 triggered
+ *     GPIO_19 triggered
+ * "
+ *
+ * Sensor Subsystem
+ * --------------------
+ *
+ * On Sensor Subsystem of Arduino 101:
+ * 1. GPIO_SS[ 2] is on A00
+ * 2. GPIO_SS[ 3] is on A01
+ * 3. GPIO_SS[ 4] is on A02
+ * 4. GPIO_SS[ 5] is on A03
+ * 5. GPIO_SS[10] is on IO3
+ * 6. GPIO_SS[11] is on IO5
+ * 7. GPIO_SS[12] is on IO6
+ * 8. GPIO_SS[13] is on IO9
+ *
+ * There are two 8-bit GPIO controllers on the sensor subsystem.
+ * GPIO_SS[0-7] are on GPIO_0 while GPIO_SS[8-15] are on GPIO_1.
+ *
+ * The gpio_dw driver is being used. The first GPIO controller
+ * is mapped to device "GPIO_0", and the second GPIO controller
+ * is mapped to device "GPIO_1".
+ *
+ * This sample app toggles GPIO_SS_2/A0. It also waits for
+ * GPIO_SS_3/A1 to go high and display a message.
+ *
+ * If A0 and A1 are connected together, the GPIO should
+ * triggers every 2 seconds. And you should see this repeatedly
+ * on console (via ipm_console0):
+ * "
+ *     Toggling GPIO_SS_2
+ *     Toggling GPIO_SS_2
+ *     GPIO_SS_3 triggered
  * "
  */
 
@@ -52,58 +87,66 @@
 
 #define SLEEPTICKS	SECONDS(1)
 
+#ifdef CONFIG_PLATFORM_QUARK_SE_SS
+#define GPIO_OUT_PIN	2
+#define GPIO_INT_PIN	3
+#define GPIO_NAME	"GPIO_SS_"
+#else
+#define GPIO_OUT_PIN	16
+#define GPIO_INT_PIN	19
+#define GPIO_NAME	"GPIO_"
+#endif
+
 void gpio_callback(struct device *port, uint32_t pin)
 {
-	PRINT("GPIO %d triggered\n", pin);
+	PRINT(GPIO_NAME "%d triggered\n", pin);
 }
 
 void main(void)
 {
 	struct nano_timer timer;
 	void *timer_data[1];
-	struct device *gpio_dw;
+	struct device *gpio_dev;
 	int ret;
 	int toggle = 1;
 
 	nano_timer_init(&timer, timer_data);
 
-	gpio_dw = device_get_binding(CONFIG_GPIO_DW_0_NAME);
+	gpio_dev = device_get_binding(CONFIG_GPIO_DW_0_NAME);
-	if (!gpio_dw) {
+	if (!gpio_dev) {
-		PRINT("Cannot find GPIO_DW_0!\n");
+		PRINT("Cannot find %s!\n", CONFIG_GPIO_DW_0_NAME);
 	}
 
-	/* Setup GPIO_16/IO8 to be output */
+	/* Setup GPIO output */
-	ret = gpio_pin_configure(gpio_dw, 16, (GPIO_DIR_OUT));
+	ret = gpio_pin_configure(gpio_dev, GPIO_OUT_PIN, (GPIO_DIR_OUT));
 	if (ret) {
-		PRINT("Error configuring GPIO_16!\n");
+		PRINT("Error configuring " GPIO_NAME "%d!\n", GPIO_OUT_PIN);
 	}
 
-	/* Setup GPIO_19/IO4 to be input,
+	/* Setup GPIO input, and triggers on rising edge. */
-	 * and triggers on rising edge.
+	ret = gpio_pin_configure(gpio_dev, GPIO_INT_PIN,
-	 */
-	ret = gpio_pin_configure(gpio_dw, 19,
 			(GPIO_DIR_IN | GPIO_INT | GPIO_INT_EDGE
 			 | GPIO_INT_ACTIVE_HIGH | GPIO_INT_DEBOUNCE));
 	if (ret) {
-		PRINT("Error configuring GPIO_16!\n");
+		PRINT("Error configuring " GPIO_NAME "%d!\n", GPIO_INT_PIN);
 	}
 
-	ret = gpio_set_callback(gpio_dw, gpio_callback);
+	ret = gpio_set_callback(gpio_dev, gpio_callback);
 	if (ret) {
 		PRINT("Cannot setup callback!\n");
 	}
 
-	ret = gpio_pin_enable_callback(gpio_dw, 19);
+	ret = gpio_pin_enable_callback(gpio_dev, GPIO_INT_PIN);
 	if (ret) {
 		PRINT("Error enabling callback!\n");
 	}
 
 	while (1) {
-		PRINT("Toggling GPIO_16\n");
+		PRINT("Toggling " GPIO_NAME "%d\n", GPIO_OUT_PIN);
 
-		ret = gpio_pin_write(gpio_dw, 16, toggle);
+		ret = gpio_pin_write(gpio_dev, GPIO_OUT_PIN, toggle);
 		if (ret) {
-			PRINT("Error set GPIO_16!\n");
+			PRINT("Error set " GPIO_NAME "%d!\n", GPIO_OUT_PIN);
 		}
 
 		if (toggle) {

samples/nanokernel/apps/gpio_dw/testcase.ini

@@ -2,5 +2,5 @@
 build_only = true
 tags = drivers
 
-arch_whitelist = x86
+arch_whitelist = x86 arc
-platform_whitelist = quark_se arduino_101
+platform_whitelist = quark_se arduino_101 quark_se_ss