static int gpio_access_cfg()

in common/shell/shell_platform.c [85:148]

• 51 lines of code
• 16 McCabe index (conditional complexity)

static int gpio_access_cfg(const struct shell *shell, int gpio_idx, enum GPIO_ACCESS mode,
			   int *data)
{
	if (!shell)
		return 1;

	if (gpio_idx >= GPIO_CFG_SIZE || gpio_idx < 0) {
		shell_error(shell, "gpio_access_cfg - gpio index out of bound!");
		return 1;
	}

	switch (mode) {
	case GPIO_READ:
		if (gpio_cfg[gpio_idx].is_init == DISABLE)
			return 1;

		uint32_t g_val = sys_read32(GPIO_GROUP_REG_ACCESS[gpio_idx / 32]);
		uint32_t g_dir = sys_read32(GPIO_GROUP_REG_ACCESS[gpio_idx / 32] + 0x4);

		char *pin_prop = (gpio_cfg[gpio_idx].property == OPEN_DRAIN) ? "OD" : "PP";
		char *pin_dir = (gpio_cfg[gpio_idx].direction == GPIO_INPUT) ? "input" : "output";

		char *pin_dir_reg = "I";
		if (g_dir & BIT(gpio_idx % 32))
			pin_dir_reg = "O";

		int val = gpio_get(gpio_idx);
		if (val == 0 || val == 1)
			shell_print(shell, "[%-3d] %-35s: %-3s | %-6s(%s) | %d(%d)", gpio_idx,
				    gpio_name[gpio_idx], pin_prop, pin_dir, pin_dir_reg, val,
				    GET_BIT_VAL(g_val, gpio_idx % 32));
		else
			shell_print(shell, "[%-3d] %-35s: %-3s | %-6s(%s) | %s", gpio_idx,
				    gpio_name[gpio_idx], pin_prop, pin_dir, pin_dir_reg, "resv");

		break;

	case GPIO_WRITE:
		if (!data) {
			shell_error(shell, "gpio_access_cfg - GPIO_WRITE value empty!");
			return 1;
		}

		if (*data != 0 && *data != 1) {
			shell_error(
				shell,
				"gpio_access_cfg - GPIO_WRITE value should only accept 0 or 1!");
			return 1;
		}

		if (gpio_set(gpio_idx, *data)) {
			shell_error(shell, "gpio_access_cfg - GPIO_WRITE failed!");
			return 1;
		}

		break;

	default:
		shell_error(shell, "gpio_access_cfg - No such mode %d!", mode);
		break;
	}

	return 0;
}