diff options
Diffstat (limited to 'common/usb_pd_alt_mode_dfp.c')
| -rw-r--r-- | common/usb_pd_alt_mode_dfp.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/common/usb_pd_alt_mode_dfp.c b/common/usb_pd_alt_mode_dfp.c index 6c2917ff33..81b7e1a53b 100644 --- a/common/usb_pd_alt_mode_dfp.c +++ b/common/usb_pd_alt_mode_dfp.c @@ -846,305 +846,6 @@ bool is_active_cable_element_retimer(int port) disc->identity.product_t2.a2_rev30.active_elem == ACTIVE_RETIMER; } -/* - * ############################################################################ - * - * Thunderbolt-Compatible functions - * - * ############################################################################ - */ - -uint32_t pd_get_tbt_mode_vdo(int port, enum tcpci_msg_type type) -{ - uint32_t tbt_mode_vdo[PDO_MODES]; - - return pd_get_mode_vdo_for_svid(port, type, USB_VID_INTEL, - tbt_mode_vdo) ? - tbt_mode_vdo[0] : - 0; -} - -/* TODO (b/148528713): Need to enable Thunderbolt-compatible mode on TCPMv2 */ -void set_tbt_compat_mode_ready(int port) -{ - if (IS_ENABLED(CONFIG_USBC_SS_MUX) && - IS_ENABLED(CONFIG_USB_PD_TBT_COMPAT_MODE)) { - /* Connect the SBU and USB lines to the connector. */ - typec_set_sbu(port, true); - - /* Set usb mux to Thunderbolt-compatible mode */ - usb_mux_set(port, USB_PD_MUX_TBT_COMPAT_ENABLED, - USB_SWITCH_CONNECT, - polarity_rm_dts(pd_get_polarity(port))); - } -} - -/* - * Ref: USB Type-C Cable and Connector Specification - * Figure F-1 TBT3 Discovery Flow - */ -static bool is_tbt_cable_superspeed(int port) -{ - const struct pd_discovery *disc; - - if (!IS_ENABLED(CONFIG_USB_PD_TBT_COMPAT_MODE) || - !IS_ENABLED(CONFIG_USB_PD_DECODE_SOP)) - return false; - - disc = pd_get_am_discovery(port, TCPCI_MSG_SOP_PRIME); - - /* Product type is Active cable, hence don't check for speed */ - if (disc->identity.idh.product_type == IDH_PTYPE_ACABLE) - return true; - - if (disc->identity.idh.product_type != IDH_PTYPE_PCABLE) - return false; - - if (IS_ENABLED(CONFIG_USB_PD_REV30) && - is_pd_rev3(port, TCPCI_MSG_SOP_PRIME)) - return disc->identity.product_t1.p_rev30.ss == - USB_R30_SS_U32_U40_GEN1 || - disc->identity.product_t1.p_rev30.ss == - USB_R30_SS_U32_U40_GEN2 || - disc->identity.product_t1.p_rev30.ss == - USB_R30_SS_U40_GEN3; - - return disc->identity.product_t1.p_rev20.ss == USB_R20_SS_U31_GEN1 || - disc->identity.product_t1.p_rev20.ss == USB_R20_SS_U31_GEN1_GEN2; -} - -static enum tbt_compat_cable_speed usb_rev30_to_tbt_speed(enum usb_rev30_ss ss) -{ - switch (ss) { - case USB_R30_SS_U32_U40_GEN1: - return TBT_SS_U31_GEN1; - case USB_R30_SS_U32_U40_GEN2: - return TBT_SS_U32_GEN1_GEN2; - case USB_R30_SS_U40_GEN3: - return TBT_SS_TBT_GEN3; - default: - return TBT_SS_U32_GEN1_GEN2; - } -} - -enum tbt_compat_cable_speed get_tbt_cable_speed(int port) -{ - union tbt_mode_resp_cable cable_mode_resp; - enum tbt_compat_cable_speed max_tbt_speed; - enum tbt_compat_cable_speed cable_tbt_speed; - - if (!is_tbt_cable_superspeed(port)) - return TBT_SS_RES_0; - - cable_mode_resp.raw_value = - pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP_PRIME); - max_tbt_speed = board_get_max_tbt_speed(port); - - /* - * Ref: TBT4 PD Discovery Flow Application Notes Revision 0.9, Figure 2 - * For passive cable, if cable doesn't support USB_VID_INTEL, enter - * Thunderbolt alternate mode with speed from USB Highest Speed field of - * the Passive Cable VDO - * For active cable, if the cable doesn't support USB_VID_INTEL, do not - * enter Thunderbolt alternate mode. - */ - if (!cable_mode_resp.raw_value) { - const struct pd_discovery *disc; - - if (get_usb_pd_cable_type(port) == IDH_PTYPE_ACABLE) - return TBT_SS_RES_0; - - disc = pd_get_am_discovery(port, TCPCI_MSG_SOP_PRIME); - cable_tbt_speed = usb_rev30_to_tbt_speed( - disc->identity.product_t1.p_rev30.ss); - } else { - cable_tbt_speed = cable_mode_resp.tbt_cable_speed; - } - - return max_tbt_speed < cable_tbt_speed ? max_tbt_speed : - cable_tbt_speed; -} - -/* Note: Assumes that pins have already been set in safe state */ -int enter_tbt_compat_mode(int port, enum tcpci_msg_type sop, uint32_t *payload) -{ - union tbt_dev_mode_enter_cmd enter_dev_mode = { .raw_value = 0 }; - union tbt_mode_resp_device dev_mode_resp; - union tbt_mode_resp_cable cable_mode_resp; - enum tcpci_msg_type enter_mode_sop = - sop == TCPCI_MSG_SOP_PRIME_PRIME ? TCPCI_MSG_SOP_PRIME : sop; - - /* Table F-12 TBT3 Cable Enter Mode Command */ - /* - * The port doesn't query Discover SOP'' to the cable so, the port - * doesn't have opos for SOP''. Hence, send Enter Mode SOP'' with same - * opos and revision as SOP'. - */ - payload[0] = pd_dfp_enter_mode(port, enter_mode_sop, USB_VID_INTEL, 0) | - VDO_CMDT(CMDT_INIT) | - VDO_SVDM_VERS(pd_get_vdo_ver(port, enter_mode_sop)); - - /* For TBT3 Cable Enter Mode Command, number of Objects is 1 */ - if ((sop == TCPCI_MSG_SOP_PRIME) || (sop == TCPCI_MSG_SOP_PRIME_PRIME)) - return 1; - - dev_mode_resp.raw_value = pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP); - cable_mode_resp.raw_value = - pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP_PRIME); - - /* Table F-13 TBT3 Device Enter Mode Command */ - enter_dev_mode.vendor_spec_b1 = dev_mode_resp.vendor_spec_b1; - enter_dev_mode.vendor_spec_b0 = dev_mode_resp.vendor_spec_b0; - enter_dev_mode.intel_spec_b0 = dev_mode_resp.intel_spec_b0; - - if (get_usb_pd_cable_type(port) == IDH_PTYPE_ACABLE || - cable_mode_resp.tbt_active_passive == TBT_CABLE_ACTIVE) - enter_dev_mode.cable = TBT_ENTER_ACTIVE_CABLE; - - enter_dev_mode.lsrx_comm = cable_mode_resp.lsrx_comm; - enter_dev_mode.retimer_type = cable_mode_resp.retimer_type; - enter_dev_mode.tbt_cable = cable_mode_resp.tbt_cable; - enter_dev_mode.tbt_rounded = cable_mode_resp.tbt_rounded; - enter_dev_mode.tbt_cable_speed = get_tbt_cable_speed(port); - enter_dev_mode.tbt_alt_mode = TBT_ALTERNATE_MODE; - - payload[1] = enter_dev_mode.raw_value; - - /* For TBT3 Device Enter Mode Command, number of Objects are 2 */ - return 2; -} - -enum tbt_compat_rounded_support get_tbt_rounded_support(int port) -{ - union tbt_mode_resp_cable cable_mode_resp = { - .raw_value = pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP_PRIME) - }; - - /* tbt_rounded_support is zero when uninitialized */ - return cable_mode_resp.tbt_rounded; -} - -__overridable enum tbt_compat_cable_speed board_get_max_tbt_speed(int port) -{ - return TBT_SS_TBT_GEN3; -} -/* - * ############################################################################ - * - * USB4 functions - * - * ############################################################################ - */ - -/* - * For Cable rev 3.0: USB4 cable speed is set according to speed supported by - * the port and the response received from the cable, whichever is least. - * - * For Cable rev 2.0: If get_tbt_cable_speed() is less than - * TBT_SS_U31_GEN1, return USB_R30_SS_U2_ONLY speed since the board - * doesn't support superspeed else the USB4 cable speed is set according to - * the cable response. - */ -enum usb_rev30_ss get_usb4_cable_speed(int port) -{ - enum tbt_compat_cable_speed tbt_speed = get_tbt_cable_speed(port); - enum usb_rev30_ss max_usb4_speed; - - if (tbt_speed < TBT_SS_U31_GEN1) - return USB_R30_SS_U2_ONLY; - - /* - * Converting Thunderbolt-Compatible board speed to equivalent USB4 - * speed. - */ - max_usb4_speed = tbt_speed == TBT_SS_TBT_GEN3 ? USB_R30_SS_U40_GEN3 : - USB_R30_SS_U32_U40_GEN2; - - if ((get_usb_pd_cable_type(port) == IDH_PTYPE_ACABLE) && - is_pd_rev3(port, TCPCI_MSG_SOP_PRIME)) { - const struct pd_discovery *disc = - pd_get_am_discovery(port, TCPCI_MSG_SOP_PRIME); - union active_cable_vdo1_rev30 a_rev30 = - disc->identity.product_t1.a_rev30; - - if (a_rev30.vdo_ver >= VDO_VERSION_1_3) { - return max_usb4_speed < a_rev30.ss ? max_usb4_speed : - a_rev30.ss; - } - } - - return max_usb4_speed; -} - -uint32_t get_enter_usb_msg_payload(int port) -{ - /* - * Ref: USB Power Delivery Specification Revision 3.0, Version 2.0 - * Table 6-47 Enter_USB Data Object - */ - union enter_usb_data_obj eudo; - const struct pd_discovery *disc; - union tbt_mode_resp_cable cable_mode_resp; - - if (!IS_ENABLED(CONFIG_USB_PD_USB4)) - return 0; - - disc = pd_get_am_discovery(port, TCPCI_MSG_SOP_PRIME); - eudo.mode = USB_PD_40; - eudo.usb4_drd_cap = IS_ENABLED(CONFIG_USB_PD_USB4_DRD); - eudo.usb3_drd_cap = IS_ENABLED(CONFIG_USB_PD_USB32_DRD); - eudo.cable_speed = get_usb4_cable_speed(port); - - if (disc->identity.idh.product_type == IDH_PTYPE_ACABLE) { - if (is_pd_rev3(port, TCPCI_MSG_SOP_PRIME)) { - enum retimer_active_element active_element = - disc->identity.product_t2.a2_rev30.active_elem; - eudo.cable_type = active_element == ACTIVE_RETIMER ? - CABLE_TYPE_ACTIVE_RETIMER : - CABLE_TYPE_ACTIVE_REDRIVER; - } else { - cable_mode_resp.raw_value = - pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP_PRIME); - - eudo.cable_type = cable_mode_resp.retimer_type == - USB_RETIMER ? - CABLE_TYPE_ACTIVE_RETIMER : - CABLE_TYPE_ACTIVE_REDRIVER; - } - } else { - cable_mode_resp.raw_value = - pd_get_tbt_mode_vdo(port, TCPCI_MSG_SOP_PRIME); - - eudo.cable_type = cable_mode_resp.tbt_active_passive == - TBT_CABLE_ACTIVE ? - CABLE_TYPE_ACTIVE_REDRIVER : - CABLE_TYPE_PASSIVE; - } - - switch (disc->identity.product_t1.p_rev20.vbus_cur) { - case USB_VBUS_CUR_3A: - eudo.cable_current = USB4_CABLE_CURRENT_3A; - break; - case USB_VBUS_CUR_5A: - eudo.cable_current = USB4_CABLE_CURRENT_5A; - break; - default: - eudo.cable_current = USB4_CABLE_CURRENT_INVALID; - break; - } - eudo.pcie_supported = IS_ENABLED(CONFIG_USB_PD_PCIE_TUNNELING); - eudo.dp_supported = IS_ENABLED(CONFIG_USB_PD_ALT_MODE_DFP); - eudo.tbt_supported = IS_ENABLED(CONFIG_USB_PD_TBT_COMPAT_MODE); - eudo.host_present = 1; - - return eudo.raw_value; -} - -__overridable bool board_is_tbt_usb4_port(int port) -{ - return true; -} - __overridable void svdm_safe_dp_mode(int port) { /* make DP interface safe until configure */ |