From 862ba9c1f8dfcb5d0600a6562b53ae09bc8e02c1 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 7 Nov 2025 17:00:42 +0100
Subject: [PATCH] alsactl: add support for new log handler (alsa-lib 1.2.15)

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 alsactl/alsactl.c |  4 ++++
 alsactl/alsactl.h |  3 ++-
 alsactl/utils.c   | 30 +++++++++++++++++++++++++++---
 aplay/aplay.c     |  7 +++++++
 4 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/alsactl/alsactl.c b/alsactl/alsactl.c
index 8ad991a..5614ea7 100644
--- a/alsactl/alsactl.c
+++ b/alsactl/alsactl.c
@@ -441,7 +441,11 @@ int main(int argc, char *argv[])
 			syslog(LOG_INFO, "alsactl " SND_UTIL_VERSION_STR " daemon started");
 	}
 
+#if SND_LIB_VER(1, 2, 15) < SND_LIB_VERSION
 	snd_lib_error_set_handler(error_handler);
+#else
+	snd_lib_log_set_handler(log_handler);
+#endif
 
 	if (!strcmp(cmd, "init")) {
 		res = init(cfgdir, initfile, initflags | FLAG_UCM_FBOOT | FLAG_UCM_BOOT, cardname);
diff --git a/alsactl/alsactl.h b/alsactl/alsactl.h
index 6ae45e3..f86f8d9 100644
--- a/alsactl/alsactl.h
+++ b/alsactl/alsactl.h
@@ -24,7 +24,8 @@ void info_(const char *fcn, long line, const char *fmt, ...);
 void error_(const char *fcn, long line, const char *fmt, ...);
 void cerror_(const char *fcn, long line, int cond, const char *fmt, ...);
 void dbg_(const char *fcn, long line, const char *fmt, ...);
-void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...);
+void error_handler(const char *file, int line, const char *function, int errcode, const char *fmt, ...);
+void log_handler(int prio, int interface, const char *file, int line, const char *function, int errcode, const char *fmt, va_list arg);
 
 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
 #define info(...) do { info_(__func__, __LINE__, __VA_ARGS__); } while (0)
diff --git a/alsactl/utils.c b/alsactl/utils.c
index d8cbf53..42e6eba 100644
--- a/alsactl/utils.c
+++ b/alsactl/utils.c
@@ -177,7 +177,7 @@ void dbg_(const char *fcn, long line, const char *fmt, ...)
 	va_end(ap);
 }
 
-void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
+void error_handler(const char *file, int line, const char *function, int errcode, const char *fmt, ...)
 {
 	char buf[2048];
 	va_list arg;
@@ -187,12 +187,36 @@ void error_handler(const char *file, int line, const char *function, int err, co
 	va_end(arg);
 	if (use_syslog)
 		syslog(LOG_ERR, "alsa-lib %s:%i:(%s) %s%s%s\n", file, line, function,
-				buf, err ? ": " : "", err ? snd_strerror(err) : "");
+				buf, errcode ? ": " : "", errcode ? snd_strerror(errcode) : "");
 	else
 		fprintf(stderr, "alsa-lib %s:%i:(%s) %s%s%s\n", file, line, function,
-				buf, err ? ": " : "", err ? snd_strerror(err) : "");
+				buf, errcode ? ": " : "", errcode ? snd_strerror(errcode) : "");
 }
 
+#if SND_LIB_VER(1, 2, 15) >= SND_LIB_VERSION
+void log_handler(int prio, int interface, const char *file, int line, const char *function, int errcode, const char *fmt, va_list arg)
+{
+	char buf[2048], level[50] = "";
+	const char *text1, *text2;
+
+	if (!snd_lib_log_filter(prio, interface, NULL))
+		return;
+
+	text1 = snd_lib_log_priority(prio);
+	text2 = snd_lib_log_interface(interface);
+	if (text1 || text2)
+		snprintf(level, sizeof(level), "[%s.%s] ", text1 ? text1 : "", text2 ? text2 : "");
+
+	vsnprintf(buf, sizeof(buf), fmt, arg);
+	if (use_syslog)
+		syslog(LOG_ERR, "alsa-lib %s:%i:(%s) %s%s%s%s\n", file, line, function, level,
+				buf, errcode ? ": " : "", errcode ? snd_strerror(errcode) : "");
+	else
+		fprintf(stderr, "alsa-lib %s:%i:(%s) %s%s%s%s\n", file, line, function, level,
+				buf, errcode ? ": " : "", errcode ? snd_strerror(errcode) : "");
+}
+#endif
+
 int load_configuration(const char *file, snd_config_t **top, int *open_failed)
 {
 	snd_config_t *config;
diff --git a/aplay/aplay.c b/aplay/aplay.c
index c58c2e9..bdc88c2 100644
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -1464,6 +1464,13 @@ static void set_params(void)
 		      chunk_size, buffer_size);
 		prg_exit(EXIT_FAILURE);
 	}
+	if (dump_hw_params) {
+		fprintf(stderr, _("HW Params of device \"%s\":\n"),
+			snd_pcm_name(handle));
+		fprintf(stderr, "--------------------\n");
+		snd_pcm_hw_params_dump(params, log);
+		fprintf(stderr, "--------------------\n");
+	}
 	err = snd_pcm_sw_params_current(handle, swparams);
 	if (err < 0) {
 		error(_("Unable to get current sw params."));
-- 
2.47.3