rvswd: gate rvswd functionality behind platform define and project option

meson_options.txt

@@ -149,3 +149,8 @@ option(
 	value: false,
 	description: 'Enable firmware-side protocol acceleration of RISC-V Debug'
 )
+option(
+	'rvswd_support',
+	type: 'boolean',
+	value: false
+)

src/command.c

@@ -56,7 +56,9 @@ static bool cmd_help(target_s *target, int argc, const char **argv);
 
 static bool cmd_jtag_scan(target_s *target, int argc, const char **argv);
 static bool cmd_swd_scan(target_s *target, int argc, const char **argv);
+#if defined(CONFIG_RVSWD) && defined(PLATFORM_HAS_RVSWD)
 static bool cmd_rvswd_scan(target_s *target, int argc, const char **argv);
+#endif
 static bool cmd_auto_scan(target_s *target, int argc, const char **argv);
 static bool cmd_frequency(target_s *target, int argc, const char **argv);
 static bool cmd_targets(target_s *target, int argc, const char **argv);
@@ -98,7 +100,9 @@ const command_s cmd_list[] = {
 	{"jtag_scan", cmd_jtag_scan, "Scan JTAG chain for devices"},
 	{"swd_scan", cmd_swd_scan, "Scan SWD interface for devices: [TARGET_ID]"},
 	{"swdp_scan", cmd_swd_scan, "Deprecated: use swd_scan instead"},
+#if defined(CONFIG_RVSWD) && defined(PLATFORM_HAS_RVSWD)
 	{"rvswd_scan", cmd_rvswd_scan, "Scan RVSWD for devices"},
+#endif
 	{"auto_scan", cmd_auto_scan, "Automatically scan all chain types for devices"},
 	{"frequency", cmd_frequency, "set minimum high and low times: [FREQ]"},
 	{"targets", cmd_targets, "Display list of available targets"},
@@ -324,6 +328,7 @@ bool cmd_swd_scan(target_s *target, int argc, const char **argv)
 	return true;
 }
 
+#if defined(CONFIG_RVSWD) && defined(PLATFORM_HAS_RVSWD)
 bool cmd_rvswd_scan(target_s *target, int argc, const char **argv)
 {
 	(void)target;
@@ -367,6 +372,7 @@ bool cmd_rvswd_scan(target_s *target, int argc, const char **argv)
 	morse(NULL, false);
 	return true;
 }
+#endif
 
 bool cmd_auto_scan(target_s *target, int argc, const char **argv)
 {
@@ -396,7 +402,7 @@ bool cmd_auto_scan(target_s *target, int argc, const char **argv)
 #endif
 			if (!scan_result) {
 				gdb_out("SWD scan found no devices.\n");
-
+#if defined(CONFIG_RVSWD) && defined(PLATFORM_HAS_RVSWD)
 #if CONFIG_BMDA == 1
 				scan_result = bmda_rvswd_scan();
 #else
@@ -404,6 +410,7 @@ bool cmd_auto_scan(target_s *target, int argc, const char **argv)
 #endif
 				if (!scan_result)
 					gdb_out("RVSWD scan found no devices.\n");
+#endif
 			}
 		}
 	}

src/include/target.h

@@ -30,6 +30,8 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include "platform.h"
+
 #if defined(_MSC_VER)
 #include <basetsd.h>
 typedef SSIZE_T ssize_t;
@@ -45,8 +47,10 @@ typedef struct target_controller target_controller_s;
 #if CONFIG_BMDA == 1
 bool bmda_swd_scan(uint32_t targetid);
 bool bmda_jtag_scan(void);
+#if defined(CONFIG_RVSWD) && defined(PLATFORM_HAS_RVSWD)
 bool bmda_rvswd_scan(void);
 #endif
+#endif
 bool adiv5_swd_scan(uint32_t targetid);
 bool jtag_scan(void);
 

src/meson.build

@@ -79,6 +79,13 @@ if rtt_support
 	endif
 endif
 
+# RVSWD support handling
+rvswd_support = get_option('rvswd_support')
+if rvswd_support
+	libbmd_core_args += ['-DCONFIG_RVSWD=1']
+	bmd_core_args += ['-DCONFIG_RVSWD=1']
+endif
+
 # Advertise QStartNoAckMode
 advertise_noackmode = get_option('advertise_noackmode')
 if advertise_noackmode
@@ -117,6 +124,7 @@ summary(
 	{
 		'Debug output': debug_output,
 		'RTT support': rtt_support,
+		'RVSWD support': rvswd_support,
 		'Advertise QStartNoAckMode': advertise_noackmode,
 	},
 	bool_yn: true,

src/platforms/hosted/platform.h

@@ -48,6 +48,7 @@ void platform_buffer_flush(void);
 	do {                 \
 	} while (0)
 #define PLATFORM_HAS_POWER_SWITCH
+#define PLATFORM_HAS_RVSWD
 
 #define PRODUCT_ID_ANY 0xffffU