platform_chrome: cros_ec: Add Type-C VDM defines

Add the EC header changes need to support USB Type-C VDM (Vendor Defined
Messages) communication between the system and USB PD-enabled
peripherals.

The headers are already present in the EC code base, from which they've
been ported [1].

[1] https://source.chromium.org/chromium/chromiumos/platform/ec/+/main:include/ec_commands.h

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221228004648.793339-3-pmalani@chromium.org

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 7c94bf5c8f05b39cfdc89f04252e366c8007f7e4..6665e7da6ee28aac7f55a34678ae39e595c3af62 100644 (file)
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -1300,6 +1300,18 @@ enum ec_feature_code {
         * mux.
         */
        EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK = 43,
+       /*
+        * The EC supports entering and residing in S4.
+        */
+       EC_FEATURE_S4_RESIDENCY = 44,
+       /*
+        * The EC supports the AP directing mux sets for the board.
+        */
+       EC_FEATURE_TYPEC_AP_MUX_SET = 45,
+       /*
+        * The EC supports the AP composing VDMs for us to send.
+        */
+       EC_FEATURE_TYPEC_AP_VDM_SEND = 46,
 };
 
 #define EC_FEATURE_MASK_0(event_code) BIT(event_code % 32)
@@ -5724,6 +5736,8 @@ enum typec_control_command {
        TYPEC_CONTROL_COMMAND_ENTER_MODE,
        TYPEC_CONTROL_COMMAND_TBT_UFP_REPLY,
        TYPEC_CONTROL_COMMAND_USB_MUX_SET,
+       TYPEC_CONTROL_COMMAND_BIST_SHARE_MODE,
+       TYPEC_CONTROL_COMMAND_SEND_VDM_REQ,
 };
 
 /* Replies the AP may specify to the TBT EnterMode command as a UFP */
@@ -5737,6 +5751,17 @@ struct typec_usb_mux_set {
        uint8_t mux_flags;      /* USB_PD_MUX_*-encoded USB mux state to set */
 } __ec_align1;
 
+#define VDO_MAX_SIZE 7
+
+struct typec_vdm_req {
+       /* VDM data, including VDM header */
+       uint32_t vdm_data[VDO_MAX_SIZE];
+       /* Number of 32-bit fields filled in */
+       uint8_t vdm_data_objects;
+       /* Partner to address - see enum typec_partner_type */
+       uint8_t partner_type;
+} __ec_align1;
+
 struct ec_params_typec_control {
        uint8_t port;
        uint8_t command;        /* enum typec_control_command */
@@ -5752,6 +5777,8 @@ struct ec_params_typec_control {
                uint8_t mode_to_enter;      /* enum typec_mode */
                uint8_t tbt_ufp_reply;      /* enum typec_tbt_ufp_reply */
                struct typec_usb_mux_set mux_params;
+               /* Used for VMD_REQ */
+               struct typec_vdm_req vdm_req_params;
                uint8_t placeholder[128];
        };
 } __ec_align1;
@@ -5833,6 +5860,8 @@ enum tcpc_cc_polarity {
 #define PD_STATUS_EVENT_DISCONNECTED           BIT(3)
 #define PD_STATUS_EVENT_MUX_0_SET_DONE         BIT(4)
 #define PD_STATUS_EVENT_MUX_1_SET_DONE         BIT(5)
+#define PD_STATUS_EVENT_VDM_REQ_REPLY          BIT(6)
+#define PD_STATUS_EVENT_VDM_REQ_FAILED         BIT(7)
 
 struct ec_params_typec_status {
        uint8_t port;
@@ -5876,6 +5905,28 @@ struct ec_response_typec_status {
        uint32_t sink_cap_pdos[7];      /* Max 7 PDOs can be present */
 } __ec_align1;
 
+/*
+ * Gather the response to the most recent VDM REQ from the AP
+ */
+#define EC_CMD_TYPEC_VDM_RESPONSE 0x013C
+
+struct ec_params_typec_vdm_response {
+       uint8_t port;
+} __ec_align1;
+
+struct ec_response_typec_vdm_response {
+       /* Number of 32-bit fields filled in */
+       uint8_t vdm_data_objects;
+       /* Partner to address - see enum typec_partner_type */
+       uint8_t partner_type;
+       /* Reserved */
+       uint16_t reserved;
+       /* VDM data, including VDM header */
+       uint32_t vdm_response[VDO_MAX_SIZE];
+} __ec_align1;
+
+#undef VDO_MAX_SIZE
+
 /*****************************************************************************/
 /* The command range 0x200-0x2FF is reserved for Rotor. */