cros_ec: Support reading EC features
The EC can support a variety of features and provides a way to find out
what is available. Add support for this.
Also update the feature list to the lastest available while we are here.
This is at:
https://chromium.googlesource.com/chromiumos/platform/ec/+/refs/heads/master/include/ec_commands.h
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1154cdc..338878c 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -516,4 +516,25 @@
* @return 0 if OK, -ve on error
*/
int cros_ec_hello(struct udevice *dev, uint *handshakep);
+
+/**
+ * cros_ec_get_features() - Get the set of features provided by the EC
+ *
+ * See enum ec_feature_code for the list of available features
+ *
+ * @dev: CROS-EC device
+ * @featuresp: Returns a bitmask of supported features
+ * @return 0 if OK, -ve on error
+ */
+int cros_ec_get_features(struct udevice *dev, u64 *featuresp);
+
+/**
+ * cros_ec_check_feature() - Check if a feature is supported
+ *
+ * @dev: CROS-EC device
+ * @feature: Feature number to check (enum ec_feature_code)
+ * @return true if supported, false if not, -ve on error
+ */
+int cros_ec_check_feature(struct udevice *dev, uint feature);
+
#endif
diff --git a/include/ec_commands.h b/include/ec_commands.h
index 444ba61..36f4a02 100644
--- a/include/ec_commands.h
+++ b/include/ec_commands.h
@@ -1101,13 +1101,50 @@
EC_FEATURE_DEVICE_EVENT = 31,
/* EC supports the unified wake masks for LPC/eSPI systems */
EC_FEATURE_UNIFIED_WAKE_MASKS = 32,
+ /* EC supports 64-bit host events */
+ EC_FEATURE_HOST_EVENT64 = 33,
+ /* EC runs code in RAM (not in place, a.k.a. XIP) */
+ EC_FEATURE_EXEC_IN_RAM = 34,
+ /* EC supports CEC commands */
+ EC_FEATURE_CEC = 35,
+ /* EC supports tight sensor timestamping. */
+ EC_FEATURE_MOTION_SENSE_TIGHT_TIMESTAMPS = 36,
+ /*
+ * EC supports tablet mode detection aligned to Chrome and allows
+ * setting of threshold by host command using
+ * MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE.
+ */
+ EC_FEATURE_REFINED_TABLET_MODE_HYSTERESIS = 37,
+ /*
+ * Early Firmware Selection ver.2. Enabled by CONFIG_VBOOT_EFS2.
+ * Note this is a RO feature. So, a query (EC_CMD_GET_FEATURES) should
+ * be sent to RO to be precise.
+ */
+ EC_FEATURE_EFS2 = 38,
+ /* The MCU is a System Companion Processor (SCP). */
+ EC_FEATURE_SCP = 39,
+ /* The MCU is an Integrated Sensor Hub */
+ EC_FEATURE_ISH = 40,
+ /* New TCPMv2 TYPEC_ prefaced commands supported */
+ EC_FEATURE_TYPEC_CMD = 41,
+ /*
+ * The EC will wait for direction from the AP to enter Type-C alternate
+ * modes or USB4.
+ */
+ EC_FEATURE_TYPEC_REQUIRE_AP_MODE_ENTRY = 42,
+ /*
+ * The EC will wait for an acknowledge from the AP after setting the
+ * mux.
+ */
+ EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK = 43,
};
-#define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32))
-#define EC_FEATURE_MASK_1(event_code) (1UL << (event_code - 32))
-struct __ec_align4 ec_response_get_features {
+#define EC_FEATURE_MASK_0(event_code) BIT(event_code % 32)
+#define EC_FEATURE_MASK_1(event_code) BIT(event_code - 32)
+
+struct ec_response_get_features {
uint32_t flags[2];
-};
+} __ec_align4;
/*****************************************************************************/
/* Get the board's SKU ID from EC */