X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fbackend.c;h=f58ab7e94ad0a50b24af319604f0606517ac7c21;hb=dd5c48a6d567a3cac62c4b0058588273bbeea171;hp=5f5f4e88d7f8cb2dd68e34d26fe068b145316079;hpb=17bfaca62aaacec71c6da4bd927af051727593b6;p=libsigrok.git

diff --git a/src/backend.c b/src/backend.c
index 5f5f4e88..f58ab7e9 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -18,9 +18,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <glib.h>
-#include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
-#include "libsigrok.h"
+#ifdef _WIN32
+#include <winsock2.h>
+#endif
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 
 /** @cond PRIVATE */
@@ -79,10 +82,10 @@
  *
  * Initializing and shutting down libsigrok.
  *
- * Before using any of the libsigrok functionality (except
- * sr_log_loglevel_set() and sr_log_opts_set()), sr_init() must
- * be called to initialize the library, which will return a struct sr_context
- * when the initialization was successful.
+ * Before using any of the libsigrok functionality (except for
+ * sr_log_loglevel_set()), sr_init() must be called to initialize the
+ * library, which will return a struct sr_context when the initialization
+ * was successful.
  *
  * When libsigrok functionality is no longer needed, sr_exit() should be
  * called, which will (among other things) free the struct sr_context.
@@ -119,21 +122,108 @@
  * @{
  */
 
+static void print_versions(void)
+{
+	GString *s;
+#if defined(HAVE_LIBUSB_1_0) && !defined(__FreeBSD__)
+	const struct libusb_version *lv;
+#endif
+
+	s = g_string_sized_new(200);
+
+	sr_dbg("libsigrok %s/%s (rt: %s/%s).",
+		SR_PACKAGE_VERSION_STRING, SR_LIB_VERSION_STRING,
+		sr_package_version_string_get(), sr_lib_version_string_get());
+
+	g_string_append(s, "Libs: ");
+	g_string_append_printf(s, "glib %d.%d.%d (rt: %d.%d.%d/%d:%d), ",
+		GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION,
+		glib_major_version, glib_minor_version, glib_micro_version,
+		glib_binary_age, glib_interface_age);
+	g_string_append_printf(s, "libzip %s, ", CONF_LIBZIP_VERSION);
+#ifdef HAVE_LIBSERIALPORT
+	g_string_append_printf(s, "libserialport %s/%s (rt: %s/%s), ",
+		SP_PACKAGE_VERSION_STRING, SP_LIB_VERSION_STRING,
+		sp_get_package_version_string(), sp_get_lib_version_string());
+#endif
+#ifdef HAVE_LIBUSB_1_0
+#ifdef __FreeBSD__
+	g_string_append_printf(s, "libusb-1.0 %s, ", CONF_LIBUSB_1_0_VERSION);
+#else
+	lv = libusb_get_version();
+	g_string_append_printf(s, "libusb-1.0 %d.%d.%d.%d%s, ",
+		lv->major, lv->minor, lv->micro, lv->nano, lv->rc);
+#endif
+#endif
+#ifdef HAVE_LIBFTDI
+	g_string_append_printf(s, "libftdi %s, ", CONF_LIBFTDI_VERSION);
+#endif
+#ifdef HAVE_LIBGPIB
+	g_string_append_printf(s, "libgpib %s, ", CONF_LIBGPIB_VERSION);
+#endif
+#ifdef HAVE_LIBREVISA
+	g_string_append_printf(s, "librevisa %s, ", CONF_LIBREVISA_VERSION);
+#endif
+	s->str[s->len - 2] = '.';
+	s->str[s->len - 1] = '\0';
+	sr_dbg("%s", s->str);
+
+	s = g_string_truncate(s, 0);
+	g_string_append_printf(s, "Host: %s, ", CONF_HOST);
+#ifdef WORDS_BIGENDIAN
+	g_string_append_printf(s, "big-endian.");
+#else
+	g_string_append_printf(s, "little-endian.");
+#endif
+	sr_dbg("%s", s->str);
+
+	s = g_string_truncate(s, 0);
+	g_string_append_printf(s, "SCPI backends: ");
+
+	g_string_append_printf(s, "TCP, ");
+#if HAVE_RPC
+	g_string_append_printf(s, "RPC, ");
+#endif
+#ifdef HAVE_LIBSERIALPORT
+	g_string_append_printf(s, "serial, ");
+#endif
+#ifdef HAVE_LIBREVISA
+	g_string_append_printf(s, "VISA, ");
+#endif
+#ifdef HAVE_LIBGPIB
+	g_string_append_printf(s, "GPIB, ");
+#endif
+#ifdef HAVE_LIBUSB_1_0
+	g_string_append_printf(s, "USBTMC, ");
+#endif
+	s->str[s->len - 2] = '.';
+	s->str[s->len - 1] = '\0';
+	sr_dbg("%s", s->str);
+
+	g_string_free(s, TRUE);
+}
+
 /**
  * Sanity-check all libsigrok drivers.
  *
+ * @param[in] ctx Pointer to a libsigrok context struct. Must not be NULL.
+ *
  * @retval SR_OK All drivers are OK
  * @retval SR_ERR One or more drivers have issues.
+ * @retval SR_ERR_ARG Invalid argument.
  */
-static int sanity_check_all_drivers(void)
+static int sanity_check_all_drivers(const struct sr_context *ctx)
 {
 	int i, errors, ret = SR_OK;
 	struct sr_dev_driver **drivers;
 	const char *d;
 
+	if (!ctx)
+		return SR_ERR_ARG;
+
 	sr_spew("Sanity-checking all drivers.");
 
-	drivers = sr_driver_list();
+	drivers = sr_driver_list(ctx);
 	for (i = 0; drivers[i]; i++) {
 		errors = 0;
 
@@ -167,11 +257,14 @@ static int sanity_check_all_drivers(void)
 			sr_err("No dev_list in driver %d ('%s').", i, d);
 			errors++;
 		}
+		/* Note: dev_clear() is optional. */
 		/* Note: config_get() is optional. */
 		if (!drivers[i]->config_set) {
 			sr_err("No config_set in driver %d ('%s').", i, d);
 			errors++;
 		}
+		/* Note: config_channel_set() is optional. */
+		/* Note: config_commit() is optional. */
 		if (!drivers[i]->config_list) {
 			sr_err("No config_list in driver %d ('%s').", i, d);
 			errors++;
@@ -238,10 +331,6 @@ static int sanity_check_all_input_modules(void)
 			sr_err("No description in module %d ('%s').", i, d);
 			errors++;
 		}
-		if (!inputs[i]->format_match) {
-			sr_err("No format_match in module %d ('%s').", i, d);
-			errors++;
-		}
 		if (!inputs[i]->init) {
 			sr_err("No init in module %d ('%s').", i, d);
 			errors++;
@@ -250,6 +339,10 @@ static int sanity_check_all_input_modules(void)
 			sr_err("No receive in module %d ('%s').", i, d);
 			errors++;
 		}
+		if (!inputs[i]->end) {
+			sr_err("No end in module %d ('%s').", i, d);
+			errors++;
+		}
 
 		if (errors == 0)
 			continue;
@@ -306,6 +399,57 @@ static int sanity_check_all_output_modules(void)
 	return ret;
 }
 
+/**
+ * Sanity-check all libsigrok transform modules.
+ *
+ * @retval SR_OK All modules are OK
+ * @retval SR_ERR One or more modules have issues.
+ */
+static int sanity_check_all_transform_modules(void)
+{
+	int i, errors, ret = SR_OK;
+	const struct sr_transform_module **transforms;
+	const char *d;
+
+	sr_spew("Sanity-checking all transform modules.");
+
+	transforms = sr_transform_list();
+	for (i = 0; transforms[i]; i++) {
+		errors = 0;
+
+		d = (transforms[i]->id) ? transforms[i]->id : "NULL";
+
+		if (!transforms[i]->id) {
+			sr_err("No ID in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!transforms[i]->name) {
+			sr_err("No name in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!transforms[i]->desc) {
+			sr_err("No description in module '%s'.", d);
+			errors++;
+		}
+		/* Note: options() is optional. */
+		/* Note: init() is optional. */
+		if (!transforms[i]->receive) {
+			sr_err("No receive in module '%s'.", d);
+			errors++;
+		}
+		/* Note: cleanup() is optional. */
+
+		if (errors == 0)
+			continue;
+
+		ret = SR_ERR;
+	}
+
+	return ret;
+}
+
+extern struct sr_dev_driver *sr_driver_list_start;
+
 /**
  * Initialize libsigrok.
  *
@@ -326,13 +470,29 @@ SR_API int sr_init(struct sr_context **ctx)
 {
 	int ret = SR_ERR;
 	struct sr_context *context;
+	struct sr_dev_driver **drivers;
+	GArray *array;
+#ifdef _WIN32
+	WSADATA wsadata;
+#endif
+
+	print_versions();
 
 	if (!ctx) {
 		sr_err("%s(): libsigrok context was NULL.", __func__);
 		return SR_ERR;
 	}
 
-	if (sanity_check_all_drivers() < 0) {
+	context = g_malloc0(sizeof(struct sr_context));
+
+	/* Generate ctx->driver_list at runtime. */
+	array = g_array_new(TRUE, FALSE, sizeof(struct sr_dev_driver *));
+	for (drivers = (&sr_driver_list_start) + 1; *drivers; drivers++)
+		g_array_append_val(array, *drivers);
+	context->driver_list = (struct sr_dev_driver **)array->data;
+	g_array_free(array, FALSE);
+
+	if (sanity_check_all_drivers(context) < 0) {
 		sr_err("Internal driver error(s), aborting.");
 		return ret;
 	}
@@ -347,13 +507,18 @@ SR_API int sr_init(struct sr_context **ctx)
 		return ret;
 	}
 
-	/* + 1 to handle when struct sr_context has no members. */
-	context = g_try_malloc0(sizeof(struct sr_context) + 1);
+	if (sanity_check_all_transform_modules() < 0) {
+		sr_err("Internal transform module error(s), aborting.");
+		return ret;
+	}
 
-	if (!context) {
-		ret = SR_ERR_MALLOC;
+#ifdef _WIN32
+	if ((ret = WSAStartup(MAKEWORD(2, 2), &wsadata)) != 0) {
+		sr_err("WSAStartup failed with error code %d.", ret);
+		ret = SR_ERR;
 		goto done;
 	}
+#endif
 
 #ifdef HAVE_LIBUSB_1_0
 	ret = libusb_init(&context->libusb_ctx);
@@ -363,14 +528,16 @@ SR_API int sr_init(struct sr_context **ctx)
 		goto done;
 	}
 #endif
+	sr_resource_set_hooks(context, NULL, NULL, NULL, NULL);
 
 	*ctx = context;
 	context = NULL;
 	ret = SR_OK;
 
+#if defined(HAVE_LIBUSB_1_0) || defined(_WIN32)
 done:
-	if (context)
-		g_free(context);
+#endif
+	g_free(context);
 	return ret;
 }
 
@@ -391,12 +558,17 @@ SR_API int sr_exit(struct sr_context *ctx)
 		return SR_ERR;
 	}
 
-	sr_hw_cleanup_all();
+	sr_hw_cleanup_all(ctx);
+
+#ifdef _WIN32
+	WSACleanup();
+#endif
 
 #ifdef HAVE_LIBUSB_1_0
 	libusb_exit(ctx->libusb_ctx);
 #endif
 
+	g_free(sr_driver_list(ctx));
 	g_free(ctx);
 
 	return SR_OK;