From fde43a77b3fa994752f6794888e5ec935744d62c Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Thu, 2 Jul 2015 16:39:04 -0300
Subject: [PATCH] AP_HAL_Linux: allow to change spi device state

Allowing to change the SPI device state allows us to save the
information whether the device was already initialized and avoid 2
separate drivers to initialize it.
---
 libraries/AP_HAL_Linux/SPIDriver.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/AP_HAL_Linux/SPIDriver.h b/libraries/AP_HAL_Linux/SPIDriver.h
index 1220bbc663..b24676703e 100644
--- a/libraries/AP_HAL_Linux/SPIDriver.h
+++ b/libraries/AP_HAL_Linux/SPIDriver.h
@@ -28,6 +28,8 @@ public:
     uint8_t transfer (uint8_t data);
     void transfer (const uint8_t *data, uint16_t len);
     void set_bus_speed(enum bus_speed speed);
+    void set_state(State state) override { _state = state; }
+    State get_state() override { return _state; }
 
 private:
     uint16_t _bus;
@@ -36,6 +38,7 @@ private:
     AP_HAL::DigitalSource *_cs;
     uint8_t _mode;
     uint8_t _bitsPerWord;
+    State _state = State::UNKNOWN;
     uint32_t _lowspeed;
     uint32_t _highspeed;
     uint32_t _speed;