AP_HAL_Linux: add GPIO definitions for minlure

libraries/AP_HAL_Linux/GPIO.h

@@ -21,6 +21,8 @@ private:
 #include "GPIO_BBB.h"
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_RASPILOT
 #include "GPIO_RPI.h"
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
+#include "GPIO_Minnow.h"
 #endif
 
 #endif // CONFIG_HAL_BOARD == HAL_BOARD_LINUX

libraries/AP_HAL_Linux/GPIO_Minnow.cpp

@@ -0,0 +1,37 @@
+#include <AP_Common/AP_Common.h>
+
+#include "GPIO_Minnow.h"
+
+#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
+
+const unsigned Linux::GPIO_Sysfs::pin_table[] = {
+    [MINNOW_GPIO_SPI_CS] =    476,
+    [MINNOW_GPIO_SPI_MISO] =  477,
+    [MINNOW_GPIO_SPI_MOSI] =  478,
+    [MINNOW_GPIO_SPI_CLK] =   479,
+    [MINNOW_GPIO_I2C_SCL] =   499,
+    [MINNOW_GPIO_I2C_SDA] =   498,
+    [MINNOW_GPIO_UART2_TXD] = 485,
+    [MINNOW_GPIO_UART2_RXD] = 484,
+    [MINNOW_GPIO_S5_0] =      338,
+    [MINNOW_GPIO_S5_1] =      339,
+    [MINNOW_GPIO_S5_2] =      340,
+    [MINNOW_GPIO_UART1_TXD] = 481,
+    [MINNOW_GPIO_UART1_RXD] = 480,
+    [MINNOW_GPIO_UART1_CTS] = 483,
+    [MINNOW_GPIO_UART1_RTS] = 482,
+    [MINNOW_GPIO_I2S_CLK] =   472,
+    [MINNOW_GPIO_I2S_FRM] =   473,
+    [MINNOW_GPIO_I2S_DO] =    475,
+    [MINNOW_GPIO_I2S_DI] =    474,
+    [MINNOW_GPIO_PWM0] =      504,
+    [MINNOW_GPIO_PWM1] =      505,
+    [MINNOW_GPIO_IBL_8254] =  464,
+};
+
+const uint8_t Linux::GPIO_Sysfs::n_pins = _MINNOW_GPIO_MAX;
+
+static_assert(ARRAY_SIZE(Linux::GPIO_Sysfs::pin_table) == _MINNOW_GPIO_MAX,
+              "GPIO pin_table must have the same size of entries in enum gpio_minnow");
+
+#endif

libraries/AP_HAL_Linux/GPIO_Minnow.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include "GPIO_Sysfs.h"
+
+enum gpio_minnow {
+    MINNOW_GPIO_SPI_CS,
+    MINNOW_GPIO_SPI_MISO,
+    MINNOW_GPIO_SPI_MOSI,
+    MINNOW_GPIO_SPI_CLK,
+    MINNOW_GPIO_I2C_SCL,
+    MINNOW_GPIO_I2C_SDA,
+    MINNOW_GPIO_UART2_TXD,
+    MINNOW_GPIO_UART2_RXD,
+    MINNOW_GPIO_S5_0,
+    MINNOW_GPIO_S5_1,
+    MINNOW_GPIO_S5_2,
+    MINNOW_GPIO_UART1_TXD,
+    MINNOW_GPIO_UART1_RXD,
+    MINNOW_GPIO_UART1_CTS,
+    MINNOW_GPIO_UART1_RTS,
+    MINNOW_GPIO_I2S_CLK,
+    MINNOW_GPIO_I2S_FRM,
+    MINNOW_GPIO_I2S_DO,
+    MINNOW_GPIO_I2S_DI,
+    MINNOW_GPIO_PWM0,
+    MINNOW_GPIO_PWM1,
+    MINNOW_GPIO_IBL_8254,
+    _MINNOW_GPIO_MAX,
+};

libraries/AP_HAL_Linux/HAL_Linux_Class.cpp

@@ -72,6 +72,8 @@ static GPIO_BBB gpioDriver;
  */
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_NAVIO || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_RASPILOT
 static GPIO_RPI gpioDriver;
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
+static GPIO_Sysfs gpioDriver;
 #else
 static Empty::EmptyGPIO gpioDriver;
 #endif