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[v9,1/2] platform/chrome: Update ChromeOS EC header for UCSI

Message ID 20241203142314.3892422-2-ukaszb@chromium.org (mailing list archive)
State New
Headers show
Series usb: typec: Implement UCSI driver for ChromeOS | expand

Commit Message

Łukasz Bartosik Dec. 3, 2024, 2:23 p.m. UTC 
From: Pavan Holla <pholla@chromium.org>

Add EC host commands for reading and writing UCSI structures
in the EC. The corresponding kernel driver is cros-ec-ucsi.

Also update PD events supported by the EC.

Acked-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Pavan Holla <pholla@chromium.org>
Signed-off-by: Łukasz Bartosik <ukaszb@chromium.org>
---
 .../linux/platform_data/cros_ec_commands.h    | 28 ++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index b3c4993e656e..ecf290a0c98f 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -5044,8 +5044,11 @@  struct ec_response_pd_status {
 #define PD_EVENT_POWER_CHANGE      BIT(1)
 #define PD_EVENT_IDENTITY_RECEIVED BIT(2)
 #define PD_EVENT_DATA_SWAP         BIT(3)
+#define PD_EVENT_TYPEC             BIT(4)
+#define PD_EVENT_PPM               BIT(5)
+
 struct ec_response_host_event_status {
-	uint32_t status;      /* PD MCU host event status */
+	uint32_t status; /* PD MCU host event status */
 } __ec_align4;
 
 /* Set USB type-C port role and muxes */
@@ -6105,6 +6108,29 @@  struct ec_response_typec_vdm_response {
 
 #undef VDO_MAX_SIZE
 
+/*
+ * UCSI OPM-PPM commands
+ *
+ * These commands are used for communication between OPM and PPM.
+ * Only UCSI3.0 is tested.
+ */
+
+#define EC_CMD_UCSI_PPM_SET 0x0140
+
+/* The data size is stored in the host command protocol header. */
+struct ec_params_ucsi_ppm_set {
+	uint16_t offset;
+	uint8_t data[];
+} __ec_align2;
+
+#define EC_CMD_UCSI_PPM_GET 0x0141
+
+/* For 'GET' sub-commands, data will be returned as a raw payload. */
+struct ec_params_ucsi_ppm_get {
+	uint16_t offset;
+	uint8_t size;
+} __ec_align2;
+
 /*****************************************************************************/
 /* The command range 0x200-0x2FF is reserved for Rotor. */