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cores: Added shutdown option to SPI core

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This commit is contained in:
Jonathon Pendlum 2016-07-29 22:38:20 -07:00 committed by Martin Braun
parent 560e664199
commit 0433e740bc
2 changed files with 23 additions and 3 deletions
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19
host/lib/usrp/cores/spi_core_3000.cpp
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@ -20,9 +20,10 @@
#include <uhd/utils/msg.hpp>
#include <boost/thread/thread.hpp> //sleep
#define SPI_DIV _base + 0
#define SPI_CTRL _base + 4
#define SPI_DATA _base + 8
#define SPI_DIV _base + 0
#define SPI_CTRL _base + 4
#define SPI_DATA _base + 8
#define SPI_SHUTDOWN _base + 12
using namespace uhd;
@ -91,6 +92,17 @@ public:
return 0;
}
void set_shutdown(const bool shutdown)
{
_shutdown_cache = shutdown;
_iface->poke32(SPI_SHUTDOWN, _shutdown_cache);
}
bool get_shutdown()
{
return(_shutdown_cache);
}
void set_divider(const double div)
{
_div = size_t((div/2) - 0.5);
@ -102,6 +114,7 @@ private:
const size_t _base;
const size_t _readback;
boost::uint32_t _ctrl_word_cache;
bool _shutdown_cache;
boost::mutex _mutex;
size_t _div;
size_t _divider_cache;

7
host/lib/usrp/cores/spi_core_3000.hpp
View file

@ -36,6 +36,13 @@ public:
//! Set the spi clock divider to something usable
virtual void set_divider(const double div) = 0;
//! Place SPI core in shutdown mode. All attempted SPI transactions are dropped by
// the core.
virtual void set_shutdown(const bool shutdown) = 0;
//! Get state of shutdown register
virtual bool get_shutdown() = 0;
};
#endif /* INCLUDED_LIBUHD_USRP_SPI_CORE_3000_HPP */