From: Anshuman Khandual <khand...@linux.vnet.ibm.com>
This patch registers the following two new OPAL interfaces calls
for the platform LED subsystem. With the help of these new OPAL calls,
the kernel will be able to get or set the state of various individual
LEDs on the system at any given location code which is passed through
the LED specific device tree nodes.
(1) OPAL_LEDS_GET_INDICATOR opal_leds_get_ind
(2) OPAL_LEDS_SET_INDICATOR opal_leds_set_ind
Signed-off-by: Anshuman Khandual <khand...@linux.vnet.ibm.com>
Signed-off-by: Vasant Hegde <hegdevas...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/opal.h | 19 +++++++++++++------
arch/powerpc/platforms/powernv/opal-wrappers.S | 2 ++
2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 9ee0a30..462ee59 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -169,6 +169,8 @@ struct opal_sg_list {
#define OPAL_IPMI_SEND 107
#define OPAL_IPMI_RECV 108
#define OPAL_I2C_REQUEST 109
+#define OPAL_LEDS_GET_INDICATOR 114
+#define OPAL_LEDS_SET_INDICATOR 115
/* Device tree flags */
@@ -380,14 +382,14 @@ enum OpalPciMaskAction {
};
enum OpalSlotLedType {
- OPAL_SLOT_LED_ID_TYPE = 0,
- OPAL_SLOT_LED_FAULT_TYPE = 1
+ OPAL_SLOT_LED_TYPE_ID = 0, /* IDENTIFY LED */
+ OPAL_SLOT_LED_TYPE_FAULT = 1, /* FAULT LED */
+ OPAL_SLOT_LED_TYPE_MAX = 2
};
-enum OpalLedAction {
- OPAL_TURN_OFF_LED = 0,
- OPAL_TURN_ON_LED = 1,
- OPAL_QUERY_LED_STATE_AFTER_BUSY = 2
+enum OpalSlotLedState {
+ OPAL_SLOT_LED_STATE_OFF = 0, /* LED is OFF */
+ OPAL_SLOT_LED_STATE_ON = 1 /* LED is ON */
};
enum OpalEpowStatus {
@@ -931,6 +933,11 @@ int64_t opal_ipmi_recv(uint64_t interface, struct
opal_ipmi_msg *msg,
uint64_t *msg_len);
int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id,
struct opal_i2c_request *oreq);
+int64_t opal_leds_get_ind(char *loc_code, u64 *led_mask,
+ u64 *led_value, u64 *max_led_type);
+int64_t opal_leds_set_ind(uint64_t token, char *loc_code, const u64 led_mask,
+ const u64 led_value, u64 *max_led_type);
+
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S
b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 0509bca..86f2acf 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -292,3 +292,5 @@ OPAL_CALL(opal_tpo_read, OPAL_READ_TPO);
OPAL_CALL(opal_ipmi_send, OPAL_IPMI_SEND);
OPAL_CALL(opal_ipmi_recv, OPAL_IPMI_RECV);
OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST);
+OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR);
+OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);
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