@@ -381,6 +381,32 @@ public:
*/
GPIOD_API void set_value(int val) const;
+ /**
+ * @brief Set configuration of this line.
+ * @param direction New direction.
+ * @param flags Replacement flags.
+ * @param value New value (0 or 1) - only matters for OUTPUT direction.
+ */
+ GPIOD_API void set_config(int direction, ::std::bitset<32> flags,
+ int value = 0) const;
+
+ /**
+ * @brief Set configuration flags of this line.
+ * @param flags Replacement flags.
+ */
+ GPIOD_API void set_flags(::std::bitset<32> flags) const;
+
+ /**
+ * @brief Change the direction this line to input.
+ */
+ GPIOD_API void set_direction_input() const;
+
+ /**
+ * @brief Change the direction this lines to output.
+ * @param value New value (0 or 1).
+ */
+ GPIOD_API void set_direction_output(int value = 0) const;
+
/**
* @brief Wait for an event on this line.
* @param timeout Time to wait before returning if no event occurred.
@@ -648,6 +674,35 @@ public:
*/
GPIOD_API void set_values(const ::std::vector<int>& values) const;
+ /**
+ * @brief Set configuration of all lines held by this object.
+ * @param direction New direction.
+ * @param flags Replacement flags.
+ * @param values Vector of values to set. Must be the same size as the
+ * number of lines held by this line_bulk.
+ * Only relevant for output direction requests.
+ */
+ GPIOD_API void set_config(int direction, ::std::bitset<32> flags,
+ const ::std::vector<int> values = std::vector<int>()) const;
+
+ /**
+ * @brief Set configuration flags of all lines held by this object.
+ * @param flags Replacement flags.
+ */
+ GPIOD_API void set_flags(::std::bitset<32> flags) const;
+
+ /**
+ * @brief Change the direction all lines held by this object to input.
+ */
+ GPIOD_API void set_direction_input() const;
+
+ /**
+ * @brief Change the direction all lines held by this object to output.
+ * @param values Vector of values to set. Must be the same size as the
+ * number of lines held by this line_bulk.
+ */
+ GPIOD_API void set_direction_output(const ::std::vector<int>& values) const;
+
/**
* @brief Poll the set of lines for line events.
* @param timeout Number of nanoseconds to wait before returning an
@@ -158,6 +158,43 @@ void line::set_value(int val) const
bulk.set_values({ val });
}
+void line::set_config(int direction, ::std::bitset<32> flags,
+ int value) const
+{
+ this->throw_if_null();
+
+ line_bulk bulk({ *this });
+
+ bulk.set_config(direction, flags, { value });
+}
+
+void line::set_flags(::std::bitset<32> flags) const
+{
+ this->throw_if_null();
+
+ line_bulk bulk({ *this });
+
+ bulk.set_flags(flags);
+}
+
+void line::set_direction_input() const
+{
+ this->throw_if_null();
+
+ line_bulk bulk({ *this });
+
+ bulk.set_direction_input();
+}
+
+void line::set_direction_output(int value) const
+{
+ this->throw_if_null();
+
+ line_bulk bulk({ *this });
+
+ bulk.set_direction_output({ value });
+}
+
bool line::event_wait(const ::std::chrono::nanoseconds& timeout) const
{
this->throw_if_null();
@@ -176,6 +176,89 @@ void line_bulk::set_values(const ::std::vector<int>& values) const
"error setting GPIO line values");
}
+void line_bulk::set_config(int direction, ::std::bitset<32> flags,
+ const ::std::vector<int> values) const
+{
+ this->throw_if_empty();
+
+ if (!values.empty() && this->_m_bulk.size() != values.size())
+ throw ::std::invalid_argument("the number of default values must correspond with the number of lines");
+
+ ::gpiod_line_bulk bulk;
+ int rv, gflags;
+
+ gflags = 0;
+
+ for (auto& it: reqflag_mapping) {
+ if ((it.first & flags).to_ulong())
+ gflags |= it.second;
+ }
+
+ this->to_line_bulk(::std::addressof(bulk));
+
+ rv = ::gpiod_line_set_config_bulk(::std::addressof(bulk), direction,
+ gflags, values.data());
+ if (rv)
+ throw ::std::system_error(errno, ::std::system_category(),
+ "error setting GPIO line config");
+}
+
+void line_bulk::set_flags(::std::bitset<32> flags) const
+{
+ this->throw_if_empty();
+
+ ::gpiod_line_bulk bulk;
+ int rv, gflags;
+
+ this->to_line_bulk(::std::addressof(bulk));
+
+ gflags = 0;
+
+ for (auto& it: reqflag_mapping) {
+ if ((it.first & flags).to_ulong())
+ gflags |= it.second;
+ }
+
+ rv = ::gpiod_line_set_flags_bulk(::std::addressof(bulk), gflags);
+ if (rv)
+ throw ::std::system_error(errno, ::std::system_category(),
+ "error setting GPIO line flags");
+}
+
+void line_bulk::set_direction_input() const
+{
+ this->throw_if_empty();
+
+ ::gpiod_line_bulk bulk;
+ int rv;
+
+ this->to_line_bulk(::std::addressof(bulk));
+
+ rv = ::gpiod_line_set_direction_input_bulk(::std::addressof(bulk));
+ if (rv)
+ throw ::std::system_error(errno, ::std::system_category(),
+ "error setting GPIO line direction to input");
+}
+
+void line_bulk::set_direction_output(const ::std::vector<int>& values) const
+{
+ this->throw_if_empty();
+
+ if (values.size() != this->_m_bulk.size())
+ throw ::std::invalid_argument("the size of values array must correspond with the number of lines");
+
+ ::gpiod_line_bulk bulk;
+ int rv;
+
+ this->to_line_bulk(::std::addressof(bulk));
+
+ rv = ::gpiod_line_set_direction_output_bulk(::std::addressof(bulk),
+ values.data());
+ if (rv)
+ throw ::std::system_error(errno, ::std::system_category(),
+ "error setting GPIO line direction to output");
+}
+
line_bulk line_bulk::event_wait(const ::std::chrono::nanoseconds& timeout) const
{
this->throw_if_empty();
Add methods to support setting line configuration. Signed-off-by: Kent Gibson <warthog618@gmail.com> --- bindings/cxx/gpiod.hpp | 55 +++++++++++++++++++++++++ bindings/cxx/line.cpp | 37 +++++++++++++++++ bindings/cxx/line_bulk.cpp | 83 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 175 insertions(+)