From e8358763b537fee42d58a507f9649a8527d78222 Mon Sep 17 00:00:00 2001
From: Anthony Rios <ar664@njit.edu>
Date: Thu, 27 May 2021 21:34:49 -0400
Subject: [PATCH] Added support for Adafruit NRF52832 Feather

Used this pr as a reference:
https://github.com/felis/USB_Host_Shield_2.0/pull/614
---
 avrpins.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 usbhost.h |  2 ++
 2 files changed, 61 insertions(+)

diff --git a/avrpins.h b/avrpins.h
index 89127f19..3aa22253 100644
--- a/avrpins.h
+++ b/avrpins.h
@@ -1295,6 +1295,65 @@ MAKE_PIN(P19, GPIOC, GPIO_PIN_0); // A5
 #undef MAKE_PIN
 
 
+#elif defined(ARDUINO_NRF52832_FEATHER)
+
+#define MAKE_PIN(className, pin) \
+class className { \
+public: \
+    static void Set() { \
+        nrf_gpio_pin_set(pin); \
+    } \
+    static void Clear() { \
+        nrf_gpio_pin_clear(pin); \
+    } \
+    static void SetDirRead() { \
+        nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_NOPULL); \
+    } \
+    static void SetDirWrite() { \
+        nrf_gpio_cfg_output(pin); \
+    } \
+    static uint8_t IsSet() { \
+        return (uint8_t)nrf_gpio_pin_read(pin); \
+    } \
+};
+
+// Based on variants/feather_nrf52832/variant.cpp
+// g_ADigitalPinMap could be used directly, but it would be slower
+MAKE_PIN(P0, (0));
+MAKE_PIN(P1, (1));
+MAKE_PIN(P2, (2));
+MAKE_PIN(P3, (3));
+MAKE_PIN(P4, (4));
+MAKE_PIN(P5, (5));
+MAKE_PIN(P6, (6));
+MAKE_PIN(P7, (7));
+MAKE_PIN(P8, (8));
+MAKE_PIN(P9, (9));
+MAKE_PIN(P10, (10));
+MAKE_PIN(P11, (11));
+MAKE_PIN(P12, (12));
+MAKE_PIN(P13, (13));
+MAKE_PIN(P14, (14));
+MAKE_PIN(P15, (15));
+MAKE_PIN(P17, (16));
+MAKE_PIN(P18, (17));
+MAKE_PIN(P16, (18));
+MAKE_PIN(P19, (19));
+MAKE_PIN(P20, (20));
+MAKE_PIN(P21, (21));
+MAKE_PIN(P22, (22));
+MAKE_PIN(P23, (23));
+MAKE_PIN(P24, (24));
+MAKE_PIN(P25, (25));
+MAKE_PIN(P26, (26));
+MAKE_PIN(P27, (27));
+MAKE_PIN(P28, (28));
+MAKE_PIN(P29, (29));
+MAKE_PIN(P30, (30));
+MAKE_PIN(P31, (31));
+
+#undef MAKE_PIN
+
 #elif defined(ARDUINO_NRF52840_FEATHER)
 
 #define MAKE_PIN(className, pin) \
diff --git a/usbhost.h b/usbhost.h
index de34813b..09c956c1 100644
--- a/usbhost.h
+++ b/usbhost.h
@@ -120,6 +120,8 @@ typedef SPi< P16, P18, P17, P10 > spi;
 typedef SPi< P14, P13, P12, P15 > spi;
 #elif defined(ESP32)
 typedef SPi< P18, P23, P19, P5 > spi;
+#elif defined(ARDUINO_NRF52832_FEATHER)
+typedef SPi< P14, P13, P12, P11 > spi;
 #elif defined(ARDUINO_NRF52840_FEATHER)
 typedef SPi< P26, P25, P24, P5 > spi;
 #else