acpi: moving flags_to_string to base code

This code is useful for many program, let's make it generic.

2 files changed, 20 insertions, 0 deletions

diff --git a/com32/gplinclude/acpi/acpi.h b/com32/gplinclude/acpi/acpi.h
index 94589f35..bf3ffdb7 100644
--- a/com32/gplinclude/acpi/acpi.h
+++ b/com32/gplinclude/acpi/acpi.h
@@ -95,4 +95,5 @@ void parse_madt(s_acpi * acpi);
 int search_rsdp(s_acpi *acpi);
 void get_acpi_description_header(uint8_t *q, s_acpi_description_header * adh);
 bool parse_header(uint64_t *address, s_acpi *acpi);
+char *flags_to_string(char *buffer, uint16_t flags);
 #endif
diff --git a/com32/gpllib/acpi/acpi.c b/com32/gpllib/acpi/acpi.c
index 8e5ee29c..d2bf29e5 100644
--- a/com32/gpllib/acpi/acpi.c
+++ b/com32/gpllib/acpi/acpi.c
@@ -32,6 +32,25 @@
 #include <memory.h>
 #include "acpi/acpi.h"
 
+/* M1PS flags have to be interpreted as strings */
+char *flags_to_string(char *buffer, uint16_t flags)
+{
+    memset(buffer, 0, sizeof(buffer));
+    strcpy(buffer, "default");
+    if ((flags & POLARITY_ACTIVE_HIGH) == POLARITY_ACTIVE_HIGH)
+	strcpy(buffer, "high");
+    else if ((flags & POLARITY_ACTIVE_LOW) == POLARITY_ACTIVE_LOW)
+	strcpy(buffer, "low");
+    if ((flags & TRIGGER_EDGE) == TRIGGER_EDGE)
+	strncat(buffer, " edge", 5);
+    else if ((flags & TRIGGER_LEVEL) == TRIGGER_LEVEL)
+	strncat(buffer, " level", 6);
+    else
+	strncat(buffer, " default", 8);
+
+    return buffer;
+}
+
 void dbg_printf(const char *fmt, ...)
 {
 	va_list args;