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-rw-r--r--src/acpi/acpigen_dptf.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/acpi/acpigen_dptf.c b/src/acpi/acpigen_dptf.c
index 88cf386bc8..c18caf673e 100644
--- a/src/acpi/acpigen_dptf.c
+++ b/src/acpi/acpigen_dptf.c
@@ -7,6 +7,8 @@
#define TOPLEVEL_DPTF_SCOPE "\\_SB.DPTF"
/* Defaults */
+#define DEFAULT_RAW_UNIT "ma"
+
enum {
ART_REVISION = 0,
DEFAULT_PRIORITY = 100,
@@ -280,3 +282,42 @@ void dptf_write_critical_policies(const struct dptf_critical_policy *policies, i
acpigen_pop_len(); /* Scope */
}
}
+
+void dptf_write_charger_perf(const struct dptf_charger_perf *states, int max_count)
+{
+ char *pkg_count;
+ int i;
+
+ if (!max_count || !states[0].control)
+ return;
+
+ dptf_write_scope(DPTF_CHARGER);
+
+ /* PPSS - Participant Performance Supported States */
+ acpigen_write_method("PPSS", 0);
+ acpigen_emit_byte(RETURN_OP);
+
+ pkg_count = acpigen_write_package(0);
+ for (i = 0; i < max_count; ++i) {
+ if (!states[i].control)
+ break;
+
+ (*pkg_count)++;
+
+ /*
+ * 0, 0, 0, 0, # Reserved
+ * Control, Raw Performance, Raw Unit, 0 # Reserved
+ */
+ acpigen_write_package(8);
+ write_zeros(4);
+ acpigen_write_integer(states[i].control);
+ acpigen_write_integer(states[i].raw_perf);
+ acpigen_write_string(DEFAULT_RAW_UNIT);
+ acpigen_write_integer(0);
+ acpigen_pop_len(); /* inner Package */
+ }
+
+ acpigen_pop_len(); /* outer Package */
+ acpigen_pop_len(); /* Method PPSS */
+ acpigen_pop_len(); /* Scope */
+}