diff options
| author | Jameson Thies <jthies@google.com> | 2024-03-05 02:58:03 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-05 13:11:08 +0000 |
| commit | f896d5e8726cd755f4868aaf8332daabaf480d7a (patch) | |
| tree | 0fc225c77ab20b7653658a7a92b7772342f5118e /drivers/usb/typec/ucsi/ucsi.h | |
| parent | 38ca416597b02fb99e38ea12a30f80593b1f2a05 (diff) | |
usb: typec: ucsi: Register SOP/SOP' Discover Identity Responses
Register SOP and SOP' Discover Identity responses with the USB Type-C
Connector Class as partner and cable identities, respectively. Discover
Identity responses are requested from the PPM using the GET_PD_MESSAGE
UCSI command.
Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20240305025804.1290919-4-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec/ucsi/ucsi.h')
| -rw-r--r-- | drivers/usb/typec/ucsi/ucsi.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index f0aabef0b7c6..b89fae82e8ce 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -106,6 +106,7 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num); #define UCSI_GET_CABLE_PROPERTY 0x11 #define UCSI_GET_CONNECTOR_STATUS 0x12 #define UCSI_GET_ERROR_STATUS 0x13 +#define UCSI_GET_PD_MESSAGE 0x15 #define UCSI_CONNECTOR_NUMBER(_num_) ((u64)(_num_) << 16) #define UCSI_COMMAND(_cmd_) ((_cmd_) & 0xff) @@ -159,6 +160,18 @@ void ucsi_connector_change(struct ucsi *ucsi, u8 num); #define UCSI_MAX_PDOS (4) #define UCSI_GET_PDOS_SRC_PDOS ((u64)1 << 34) +/* GET_PD_MESSAGE command bits */ +#define UCSI_GET_PD_MESSAGE_RECIPIENT(_r_) ((u64)(_r_) << 23) +#define UCSI_GET_PD_MESSAGE_OFFSET(_r_) ((u64)(_r_) << 26) +#define UCSI_GET_PD_MESSAGE_BYTES(_r_) ((u64)(_r_) << 34) +#define UCSI_GET_PD_MESSAGE_TYPE(_r_) ((u64)(_r_) << 42) +#define UCSI_GET_PD_MESSAGE_TYPE_SNK_CAP_EXT 0 +#define UCSI_GET_PD_MESSAGE_TYPE_SRC_CAP_EXT 1 +#define UCSI_GET_PD_MESSAGE_TYPE_BAT_CAP 2 +#define UCSI_GET_PD_MESSAGE_TYPE_BAT_STAT 3 +#define UCSI_GET_PD_MESSAGE_TYPE_IDENTITY 4 +#define UCSI_GET_PD_MESSAGE_TYPE_REVISION 5 + /* -------------------------------------------------------------------------- */ /* Error information returned by PPM in response to GET_ERROR_STATUS command. */ @@ -338,6 +351,18 @@ struct ucsi_connector_status { ((get_unaligned_le32(&(_p_)[5]) & GENMASK(16, 1)) >> 1) } __packed; +/* + * Data structure filled by PPM in response to GET_PD_MESSAGE command with the + * Response Message Type set to Discover Identity Response. + */ +struct ucsi_pd_message_disc_id { + u32 vdm_header; + u32 id_header; + u32 cert_stat; + u32 product; + u32 vdo[3]; +} __packed; + /* -------------------------------------------------------------------------- */ struct ucsi_debugfs_entry { @@ -428,6 +453,10 @@ struct ucsi_connector { struct usb_power_delivery_capabilities *partner_sink_caps; struct usb_role_switch *usb_role_sw; + + /* USB PD identity */ + struct usb_pd_identity partner_identity; + struct usb_pd_identity cable_identity; }; int ucsi_send_command(struct ucsi *ucsi, u64 command, |