fw: Remove GPIO-based logic

This makes it easier to develop the whole network-related firmware parts
on a simulation board instead of hardware.

The nucleo_f767zi board has likely a hardware bug making Ethernet
sometimes fail. This is not suitable for development.

2 files changed, 0 insertions, 43 deletions

diff --git a/fw/prj.conf b/fw/prj.conf
index 2485227..9c84c48 100644
--- a/fw/prj.conf
+++ b/fw/prj.conf
@@ -7,5 +7,3 @@ CONFIG_SHELL_PROMPT_UART="[iot-contact] "
 
 CONFIG_NETWORKING=y
 CONFIG_NET_SHELL=y
-
-CONFIG_GPIO=y
diff --git a/fw/src/main.c b/fw/src/main.c
index 9390505..228422c 100644
--- a/fw/src/main.c
+++ b/fw/src/main.c
@@ -4,49 +4,8 @@
  * obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-#include <zephyr/kernel.h>
-#include <zephyr/device.h>
-#include <zephyr/drivers/gpio.h>
-
-#define SW0_NODE DT_ALIAS(sw0)
-#if !DT_NODE_HAS_STATUS(SW0_NODE, okay)
-#error "Unsupported board: Devicetree alias for button is not defined"
-#endif
-static const struct gpio_dt_spec button = GPIO_DT_SPEC_GET(SW0_NODE, gpios);
-static struct gpio_callback button_cb_data;
-
-void button_pressed(const struct device *dev, struct gpio_callback *cb,
-                    uint32_t pins)
-{
-	printk("Button pressed\n");
-}
 
 int main(void)
 {
-	int ret;
-
-	if (!gpio_is_ready_dt(&button)) {
-		printk("Error: button device %s is not ready\n",
-		       button.port->name);
-		return 0;
-	}
-
-	ret = gpio_pin_configure_dt(&button, GPIO_INPUT);
-	if (ret != 0) {
-		printk("Error %d: failed to configure %s pin %d\n",
-		       ret, button.port->name, button.pin);
-		return 0;
-	}
-
-	ret = gpio_pin_interrupt_configure_dt(&button, GPIO_INT_EDGE_TO_ACTIVE);
-	if (ret != 0) {
-		printk("Error %d: failed to configure interrupt on %s pin %d\n",
-		       ret, button.port->name, button.pin);
-		return 0;
-	}
-
-	gpio_init_callback(&button_cb_data, button_pressed, BIT(button.pin));
-	gpio_add_callback(button.port, &button_cb_data);
-
 	return 0;
 }