AP_HAL_Linux: GPIO Sysfs for Bebop

copied from minlure implementation

libraries/AP_HAL_Linux/GPIO.h

@@ -23,6 +23,8 @@ private:
 #include "GPIO_RPI.h"
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
 #include "GPIO_Minnow.h"
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
+#include "GPIO_Bebop.h"
 #endif
 
 #endif // CONFIG_HAL_BOARD == HAL_BOARD_LINUX

libraries/AP_HAL_Linux/GPIO_Bebop.cpp

@@ -0,0 +1,16 @@
+#include <AP_Common/AP_Common.h>
+
+#include "GPIO_Bebop.h"
+
+#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
+
+const unsigned Linux::GPIO_Sysfs::pin_table[] = {
+    [BEBOP_GPIO_CAMV_NRST] = 129,
+};
+
+const uint8_t Linux::GPIO_Sysfs::n_pins = _BEBOP_GPIO_MAX;
+
+static_assert(ARRAY_SIZE(Linux::GPIO_Sysfs::pin_table) == _BEBOP_GPIO_MAX,
+              "GPIO pin_table must have the same size of entries in enum gpio_minnow");
+
+#endif

libraries/AP_HAL_Linux/GPIO_Bebop.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "GPIO_Sysfs.h"
+
+enum gpio_bebop {
+    BEBOP_GPIO_CAMV_NRST,
+    _BEBOP_GPIO_MAX,
+};

libraries/AP_HAL_Linux/HAL_Linux_Class.cpp

@@ -91,7 +91,7 @@ static GPIO_BBB gpioDriver;
  */
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_RASPILOT || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ERLEBRAIN2
 static GPIO_RPI gpioDriver;
-#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BEBOP
 static GPIO_Sysfs gpioDriver;
 #else
 static Empty::EmptyGPIO gpioDriver;