diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 59621cfaee3d..460dbde9fe22 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -185,7 +185,8 @@ S(UNSTRUCTURED_VDMS), \ S(STRUCTURED_VDMS), \ S(COUNTRY_INFO), \ - S(COUNTRY_CODES) + S(COUNTRY_CODES), \ + S(REVISION_INFORMATION) #define GENERATE_ENUM(e) e #define GENERATE_STRING(s) #s @@ -225,6 +226,7 @@ enum pd_msg_request { PD_MSG_CTRL_NOT_SUPP, PD_MSG_DATA_SINK_CAP, PD_MSG_DATA_SOURCE_CAP, + PD_MSG_DATA_REV, }; enum adev_actions { @@ -1244,6 +1246,24 @@ static u32 tcpm_forge_legacy_pdo(struct tcpm_port *port, u32 pdo, enum typec_rol } } +static int tcpm_pd_send_revision(struct tcpm_port *port) +{ + struct pd_message msg; + u32 rmdo; + + memset(&msg, 0, sizeof(msg)); + rmdo = RMDO(port->pd_rev.rev_major, port->pd_rev.rev_minor, + port->pd_rev.ver_major, port->pd_rev.ver_minor); + msg.payload[0] = cpu_to_le32(rmdo); + msg.header = PD_HEADER_LE(PD_DATA_REVISION, + port->pwr_role, + port->data_role, + port->negotiated_rev, + port->message_id, + 1); + return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg); +} + static int tcpm_pd_send_source_caps(struct tcpm_port *port) { struct pd_message msg; @@ -3547,6 +3567,17 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port, PD_MSG_CTRL_NOT_SUPP, NONE_AMS); break; + case PD_CTRL_GET_REVISION: + if (port->negotiated_rev >= PD_REV30 && port->pd_rev.rev_major) + tcpm_pd_handle_msg(port, PD_MSG_DATA_REV, + REVISION_INFORMATION); + else + tcpm_pd_handle_msg(port, + port->negotiated_rev < PD_REV30 ? + PD_MSG_CTRL_REJECT : + PD_MSG_CTRL_NOT_SUPP, + NONE_AMS); + break; default: tcpm_pd_handle_msg(port, port->negotiated_rev < PD_REV30 ? @@ -3791,6 +3822,14 @@ static bool tcpm_send_queued_message(struct tcpm_port *port) tcpm_ams_finish(port); } break; + case PD_MSG_DATA_REV: + ret = tcpm_pd_send_revision(port); + if (ret) + tcpm_log(port, + "Unable to send revision msg, ret=%d", + ret); + tcpm_ams_finish(port); + break; default: break; } |