1 files changed, 85 insertions, 0 deletions
diff --git a/roms/skiboot/hw/ipmi/ipmi-power.c b/roms/skiboot/hw/ipmi/ipmi-power.c
new file mode 100644
index 000000000..8101a8524
--- /dev/null
+++ b/roms/skiboot/hw/ipmi/ipmi-power.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+/*
+ * Power as in electricity, not POWER as in POWER
+ *
+ * Copyright 2013-2019 IBM Corp.
+ */
+
+#include <skiboot.h>
+#include <stdlib.h>
+#include <ipmi.h>
+#include <opal.h>
+#include <timebase.h>
+
+static void ipmi_chassis_control_complete(struct ipmi_msg *msg)
+{
+	uint8_t request = msg->data[0];
+	uint8_t cc = msg->cc;
+
+	ipmi_free_msg(msg);
+	if (cc == IPMI_CC_NO_ERROR)
+		return;
+
+	prlog(PR_INFO, "IPMI: Chassis control request failed. "
+	      "request=0x%02x, rc=0x%02x\n", request, cc);
+
+	if (ipmi_chassis_control(request)) {
+		prlog(PR_INFO, "IPMI: Failed to resend chassis control "
+		      "request [0x%02x]\n", request);
+	}
+}
+
+int ipmi_chassis_control(uint8_t request)
+{
+	struct ipmi_msg *msg;
+
+	if (!ipmi_present())
+		return OPAL_CLOSED;
+
+	if (request > IPMI_CHASSIS_SOFT_SHUTDOWN)
+		return OPAL_PARAMETER;
+
+	msg = ipmi_mkmsg(IPMI_DEFAULT_INTERFACE, IPMI_CHASSIS_CONTROL,
+			 ipmi_chassis_control_complete, NULL,
+			 &request, sizeof(request), 0);
+	if (!msg)
+		return OPAL_HARDWARE;
+	/* Set msg->error callback function */
+	msg->error = ipmi_chassis_control_complete;
+
+	prlog(PR_INFO, "IPMI: sending chassis control request 0x%02x\n",
+			request);
+
+	return ipmi_queue_msg(msg);
+}
+
+int ipmi_set_power_state(uint8_t system, uint8_t device)
+{
+	struct ipmi_msg *msg;
+	struct {
+		uint8_t system;
+		uint8_t device;
+	} power_state;
+
+	if (!ipmi_present())
+		return OPAL_CLOSED;
+
+	power_state.system = system;
+	power_state.device = device;
+
+	if (system != IPMI_PWR_NOCHANGE)
+		power_state.system |= 0x80;
+	if (device != IPMI_PWR_NOCHANGE)
+		power_state.device |= 0x80;
+
+	msg = ipmi_mkmsg_simple(IPMI_SET_POWER_STATE, &power_state,
+				sizeof(power_state));
+
+	if (!msg)
+		return OPAL_HARDWARE;
+
+	prlog(PR_INFO, "IPMI: setting power state: sys %02x, dev %02x\n",
+			power_state.system, power_state.device);
+
+	return ipmi_queue_msg(msg);
+}