linux-kernel - [PATCH 3/9] platform/chrome: Add Type-C mux set command definitions

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Date:   Wed, 29 Jun 2022 23:32:21 +0000
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        chrome-platform@...ts.linux.dev
Cc:     bleung@...omium.org, heikki.krogerus@...ux.intel.com,
        Prashant Malani <pmalani@...omium.org>,
        Daisuke Nojiri <dnojiri@...omium.org>,
        "Dustin L. Howett" <dustin@...ett.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <groeck@...omium.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Tzung-Bi Shih <tzungbi@...nel.org>
Subject: [PATCH 3/9] platform/chrome: Add Type-C mux set command definitions

Copy EC header definitions for the USB Type-C Mux control command from
the EC code base. Also pull in "TBT_UFP_REPLY" definitions, since that
is the prior entry in the enum.

These headers are already present in the EC code base. [1]

[1] https://chromium.googlesource.com/chromiumos/platform/ec/+/b80f85a94a423273c1638ef7b662c56931a138dd/include/ec_commands.h

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 include/linux/platform_data/cros_ec_commands.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 8cfa8cfca77e..a3945c5e7f50 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -5722,8 +5722,21 @@ enum typec_control_command {
 	TYPEC_CONTROL_COMMAND_EXIT_MODES,
 	TYPEC_CONTROL_COMMAND_CLEAR_EVENTS,
 	TYPEC_CONTROL_COMMAND_ENTER_MODE,
+	TYPEC_CONTROL_COMMAND_TBT_UFP_REPLY,
+	TYPEC_CONTROL_COMMAND_USB_MUX_SET,
 };
 
+/* Replies the AP may specify to the TBT EnterMode command as a UFP */
+enum typec_tbt_ufp_reply {
+	TYPEC_TBT_UFP_REPLY_NAK,
+	TYPEC_TBT_UFP_REPLY_ACK,
+};
+
+struct typec_usb_mux_set {
+	uint8_t mux_index;	/* Index of the mux to set in the chain */
+	uint8_t mux_flags;	/* USB_PD_MUX_*-encoded USB mux state to set */
+} __ec_align1;
+
 struct ec_params_typec_control {
 	uint8_t port;
 	uint8_t command;	/* enum typec_control_command */
@@ -5737,6 +5750,8 @@ struct ec_params_typec_control {
 	union {
 		uint32_t clear_events_mask;
 		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;
 		uint8_t placeholder[128];
 	};
 } __ec_align1;
@@ -5815,6 +5830,9 @@ enum tcpc_cc_polarity {
 #define PD_STATUS_EVENT_SOP_DISC_DONE		BIT(0)
 #define PD_STATUS_EVENT_SOP_PRIME_DISC_DONE	BIT(1)
 #define PD_STATUS_EVENT_HARD_RESET		BIT(2)
+#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)
 
 struct ec_params_typec_status {
 	uint8_t port;
-- 
2.37.0.rc0.161.g10f37bed90-goog