From 7b3810db8fa333a053329ae13c0d8c081b22840f Mon Sep 17 00:00:00 2001
From: Joel Holdsworth <joel@airwebreathe.org.uk>
Date: Fri, 28 Dec 2012 10:03:51 +0000
Subject: [PATCH] Implemented HwCap binding

---
 pv/prop/binding/hwcap.cpp | 123 ++++++++++++++++++++++++++++++++++++++
 pv/prop/binding/hwcap.h   |  14 +++++
 2 files changed, 137 insertions(+)

diff --git a/pv/prop/binding/hwcap.cpp b/pv/prop/binding/hwcap.cpp
index c21d4587..de3c6e9d 100644
--- a/pv/prop/binding/hwcap.cpp
+++ b/pv/prop/binding/hwcap.cpp
@@ -18,8 +18,15 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#include <boost/bind.hpp>
+
 #include "hwcap.h"
 
+#include <pv/prop/enum.h>
+
+using namespace boost;
+using namespace std;
+
 namespace pv {
 namespace prop {
 namespace binding {
@@ -27,6 +34,122 @@ namespace binding {
 HwCap::HwCap(struct sr_dev_inst *sdi) :
 	_sdi(sdi)
 {
+	const int *hwcaps;
+
+	if ((sr_info_get(sdi->driver, SR_DI_HWCAPS, (const void **)&hwcaps,
+			sdi) != SR_OK) || !hwcaps)
+		/* Driver supports no device instance options. */
+		return;
+
+	for (int cap = 0; hwcaps[cap]; cap++) {
+		const struct sr_hwcap_option *const hwo =
+			sr_devopt_get(hwcaps[cap]);
+
+		if (!hwo)
+			continue;
+
+		switch(hwo->hwcap)
+		{
+		case SR_HWCAP_PATTERN_MODE:
+			bind_stropt(hwo, SR_DI_PATTERNS,
+				SR_HWCAP_PATTERN_MODE);
+			break;
+
+		case SR_HWCAP_BUFFERSIZE:
+			bind_buffer_size(hwo);
+			break;
+
+		case SR_HWCAP_TIMEBASE:
+			bind_time_base(hwo);
+			break;
+
+		case SR_HWCAP_TRIGGER_SOURCE:
+			bind_stropt(hwo, SR_DI_TRIGGER_SOURCES,
+				SR_HWCAP_TRIGGER_SOURCE);
+			break;
+
+		case SR_HWCAP_FILTER:
+			bind_stropt(hwo, SR_DI_FILTERS, SR_HWCAP_FILTER);
+			break;
+
+		case SR_HWCAP_VDIV:
+			bind_vdiv(hwo);
+			break;
+
+		case SR_HWCAP_COUPLING:
+			bind_stropt(hwo, SR_DI_COUPLING, SR_HWCAP_FILTER);
+			break;
+		}
+	}
+}
+
+void HwCap::expose_enum(const struct sr_hwcap_option *hwo,
+	const vector< pair<const void*, QString> > &values, int opt)
+{
+	_properties.push_back(shared_ptr<Property>(
+		new Enum(QString(hwo->shortname), values,
+			function<const void* ()>(),
+			bind(sr_dev_config_set, _sdi, opt, _1))));
+}
+
+void HwCap::bind_stropt(const struct sr_hwcap_option *hwo, int id, int opt)
+{
+	const char **stropts;
+	if (sr_info_get(_sdi->driver, id,
+		(const void **)&stropts, _sdi) != SR_OK)
+		return;
+
+	vector< pair<const void*, QString> > values;
+	for (int i = 0; stropts[i]; i++)
+		values.push_back(make_pair(stropts[i], stropts[i]));
+
+	expose_enum(hwo, values, opt);
+}
+
+void HwCap::bind_buffer_size(const struct sr_hwcap_option *hwo)
+{
+	const uint64_t *sizes;
+	if (sr_info_get(_sdi->driver, SR_DI_BUFFERSIZES,
+			(const void **)&sizes, _sdi) != SR_OK)
+		return;
+
+	vector< pair<const void*, QString> > values;
+	for (int i = 0; sizes[i]; i++)
+		values.push_back(make_pair(sizes + i,
+			QString("%1").arg(sizes[i])));
+
+	expose_enum(hwo, values, SR_HWCAP_BUFFERSIZE);
+}
+
+void HwCap::bind_time_base(const struct sr_hwcap_option *hwo)
+{
+	struct sr_rational *timebases;
+	if (sr_info_get(_sdi->driver, SR_DI_TIMEBASES,
+			(const void **)&timebases, _sdi) != SR_OK)
+		return;
+
+	vector< pair<const void*, QString> > values;
+	for (int i = 0; timebases[i].p && timebases[i].q; i++)
+		values.push_back(make_pair(timebases + i,
+			QString(sr_period_string(
+				timebases[i].p * timebases[i].q))));
+
+	expose_enum(hwo, values, SR_HWCAP_TIMEBASE);
+}
+
+void HwCap::bind_vdiv(const struct sr_hwcap_option *hwo)
+{
+	struct sr_rational *vdivs;
+	if (sr_info_get(_sdi->driver, SR_DI_VDIVS,
+			(const void **)&vdivs, _sdi) != SR_OK)
+		return;
+
+	vector< pair<const void*, QString> > values;
+	for (int i = 0; vdivs[i].p && vdivs[i].q; i++)
+		values.push_back(make_pair(vdivs + i,
+			QString(sr_voltage_string(vdivs + i))));
+
+	expose_enum(hwo, values, SR_HWCAP_VDIV);
 }
 
 } // binding
diff --git a/pv/prop/binding/hwcap.h b/pv/prop/binding/hwcap.h
index 68487201..27c7c1eb 100644
--- a/pv/prop/binding/hwcap.h
+++ b/pv/prop/binding/hwcap.h
@@ -21,6 +21,8 @@
 #ifndef PULSEVIEW_PV_PROP_BINDING_HWCAP_H
 #define PULSEVIEW_PV_PROP_BINDING_HWCAP_H
 
+#include <QString>
+
 extern "C" {
 #include <libsigrok/libsigrok.h>
 }
@@ -36,6 +38,18 @@ class HwCap : public Binding
 public:
 	HwCap(struct sr_dev_inst *sdi);
 
+private:
+	void expose_enum(const struct sr_hwcap_option *hwo,
+		const std::vector<std::pair<const void*, QString> > &values,
+		int opt);
+
+	void bind_stropt(const struct sr_hwcap_option *hwo, int id,
+		int opt);
+
+	void bind_buffer_size(const struct sr_hwcap_option *hwo);
+	void bind_time_base(const struct sr_hwcap_option *hwo);
+	void bind_vdiv(const struct sr_hwcap_option *hwo);
+
 protected:
 	const struct sr_dev_inst *_sdi;
 };
-- 
2.30.2