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-rw-r--r--common/usb_common.c470
1 files changed, 469 insertions, 1 deletions
diff --git a/common/usb_common.c b/common/usb_common.c
index 86c85898dd..1054b155df 100644
--- a/common/usb_common.c
+++ b/common/usb_common.c
@@ -8,10 +8,22 @@
* and the new (i.e. usb_sm_*) USB-C PD stacks.
*/
+#include "chipset.h"
#include "common.h"
#include "charge_state.h"
+#include "system.h"
+#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
+#include "usbc_ppc.h"
+
+#ifdef CONFIG_COMMON_RUNTIME
+#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
+#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
+#else
+#define CPRINTS(format, args...)
+#define CPRINTF(format, args...)
+#endif
int usb_get_battery_soc(void)
{
@@ -61,8 +73,10 @@ typec_current_t usb_get_typec_current_limit(enum pd_cc_polarity_type polarity,
break;
}
- if (IS_ENABLED(CONFIG_USBC_DISABLE_CHARGE_FROM_RP_DEF) && charge == 500)
+#ifdef CONFIG_USBC_DISABLE_CHARGE_FROM_RP_DEF
+ if (charge == 500)
charge = 0;
+#endif
if (cc_is_rp(cc_alt))
charge |= TYPEC_CURRENT_DTS_MASK;
@@ -81,3 +95,457 @@ enum pd_cc_polarity_type get_snk_polarity(enum tcpc_cc_voltage_status cc1,
*/
return cc2 > cc1;
}
+
+
+__overridable int pd_board_checks(void)
+{
+ return EC_SUCCESS;
+}
+
+__overridable int pd_check_data_swap(int port, int data_role)
+{
+ /* Allow data swap if we are a UFP, otherwise don't allow. */
+ return (data_role == PD_ROLE_UFP) ? 1 : 0;
+}
+
+__overridable void pd_check_dr_role(int port, int dr_role, int flags)
+{
+ /* If UFP, try to switch to DFP */
+ if ((flags & PD_FLAGS_PARTNER_DR_DATA) && dr_role == PD_ROLE_UFP)
+ pd_request_data_swap(port);
+}
+
+__overridable int pd_check_power_swap(int port)
+{
+ /*
+ * Allow power swap if we are acting as a dual role device. If we are
+ * not acting as dual role (ex. suspended), then only allow power swap
+ * if we are sourcing when we could be sinking.
+ */
+ if (pd_get_dual_role(port) == PD_DRP_TOGGLE_ON)
+ return 1;
+ else if (pd_get_role(port) == PD_ROLE_SOURCE)
+ return 1;
+
+ return 0;
+}
+
+__overridable void pd_check_pr_role(int port, int pr_role, int flags)
+{
+ /*
+ * If partner is dual-role power and dualrole toggling is on, consider
+ * if a power swap is necessary.
+ */
+ if ((flags & PD_FLAGS_PARTNER_DR_POWER) &&
+ pd_get_dual_role(port) == PD_DRP_TOGGLE_ON) {
+ /*
+ * If we are a sink and partner is not externally powered, then
+ * swap to become a source. If we are source and partner is
+ * externally powered, swap to become a sink.
+ */
+ int partner_extpower = flags & PD_FLAGS_PARTNER_EXTPOWER;
+
+ if ((!partner_extpower && pr_role == PD_ROLE_SINK) ||
+ (partner_extpower && pr_role == PD_ROLE_SOURCE))
+ pd_request_power_swap(port);
+ }
+}
+
+__overridable void pd_execute_data_swap(int port, int data_role)
+{
+}
+
+__overridable int pd_is_valid_input_voltage(int mv)
+{
+ return 1;
+}
+
+__overridable void pd_transition_voltage(int idx)
+{
+ /* Most devices are fixed 5V output. */
+}
+
+__overridable void typec_set_source_current_limit(int p, enum tcpc_rp_value rp)
+{
+#ifdef CONFIG_USBC_PPC
+ ppc_set_vbus_source_current_limit(p, rp);
+#endif
+}
+
+/* ---------------- Power Data Objects (PDOs) ----------------- */
+#ifndef CONFIG_USB_PD_CUSTOM_PDO
+#define PDO_FIXED_FLAGS (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |\
+ PDO_FIXED_COMM_CAP)
+
+const uint32_t pd_src_pdo[] = {
+ PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
+};
+const int pd_src_pdo_cnt = ARRAY_SIZE(pd_src_pdo);
+const uint32_t pd_src_pdo_max[] = {
+ PDO_FIXED(5000, 3000, PDO_FIXED_FLAGS),
+};
+const int pd_src_pdo_max_cnt = ARRAY_SIZE(pd_src_pdo_max);
+
+const uint32_t pd_snk_pdo[] = {
+ PDO_FIXED(5000, 500, PDO_FIXED_FLAGS),
+ PDO_BATT(4750, PD_MAX_VOLTAGE_MV, PD_OPERATING_POWER_MW),
+ PDO_VAR(4750, PD_MAX_VOLTAGE_MV, PD_MAX_CURRENT_MA),
+};
+const int pd_snk_pdo_cnt = ARRAY_SIZE(pd_snk_pdo);
+#endif /* CONFIG_USB_PD_CUSTOM_PDO */
+
+/* ----------------- Vendor Defined Messages ------------------ */
+__overridable int pd_custom_vdm(int port, int cnt, uint32_t *payload,
+ uint32_t **rpayload)
+{
+ int cmd = PD_VDO_CMD(payload[0]);
+ uint16_t dev_id = 0;
+ int is_rw, is_latest;
+
+ /* make sure we have some payload */
+ if (cnt == 0)
+ return 0;
+
+ switch (cmd) {
+ case VDO_CMD_VERSION:
+ /* guarantee last byte of payload is null character */
+ *(payload + cnt - 1) = 0;
+ CPRINTF("version: %s\n", (char *)(payload+1));
+ break;
+ case VDO_CMD_READ_INFO:
+ case VDO_CMD_SEND_INFO:
+ /* copy hash */
+ if (cnt == 7) {
+ dev_id = VDO_INFO_HW_DEV_ID(payload[6]);
+ is_rw = VDO_INFO_IS_RW(payload[6]);
+
+ is_latest = pd_dev_store_rw_hash(port,
+ dev_id,
+ payload + 1,
+ is_rw ?
+ SYSTEM_IMAGE_RW :
+ SYSTEM_IMAGE_RO);
+
+ /*
+ * Send update host event unless our RW hash is
+ * already known to be the latest update RW.
+ */
+ if (!is_rw || !is_latest)
+ pd_send_host_event(PD_EVENT_UPDATE_DEVICE);
+
+ CPRINTF("DevId:%d.%d SW:%d RW:%d\n",
+ HW_DEV_ID_MAJ(dev_id),
+ HW_DEV_ID_MIN(dev_id),
+ VDO_INFO_SW_DBG_VER(payload[6]),
+ is_rw);
+ } else if (cnt == 6) {
+ /* really old devices don't have last byte */
+ pd_dev_store_rw_hash(port, dev_id, payload + 1,
+ SYSTEM_IMAGE_UNKNOWN);
+ }
+ break;
+ case VDO_CMD_CURRENT:
+ CPRINTF("Current: %dmA\n", payload[1]);
+ break;
+ case VDO_CMD_FLIP:
+#ifdef CONFIG_USBC_SS_MUX
+ usb_mux_flip(port);
+#endif
+ break;
+#ifdef CONFIG_USB_PD_LOGGING
+ case VDO_CMD_GET_LOG:
+ pd_log_recv_vdm(port, cnt, payload);
+ break;
+#endif /* CONFIG_USB_PD_LOGGING */
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_USB_PD_ALT_MODE_DFP
+__overridable const struct svdm_response svdm_rsp = {
+ .identity = NULL,
+ .svids = NULL,
+ .modes = NULL,
+};
+
+int dp_flags[CONFIG_USB_PD_PORT_COUNT];
+uint32_t dp_status[CONFIG_USB_PD_PORT_COUNT];
+
+__overridable void svdm_safe_dp_mode(int port)
+{
+ /* make DP interface safe until configure */
+ dp_flags[port] = 0;
+ dp_status[port] = 0;
+ usb_mux_set(port,
+#ifdef CONFIG_USB_MUX_VIRTUAL
+ TYPEC_MUX_SAFE,
+#else
+ TYPEC_MUX_NONE,
+#endif
+ USB_SWITCH_CONNECT, pd_get_polarity(port));
+
+ /* Isolate the SBU lines. */
+#ifdef CONFIG_USBC_PPC_SBU
+ ppc_set_sbu(port, 0);
+#endif
+}
+
+__overridable int svdm_enter_dp_mode(int port, uint32_t mode_caps)
+{
+ /*
+ * Don't enter the mode if the SoC is off.
+ *
+ * There's no need to enter the mode while the SoC is off; we'll
+ * actually enter the mode on the chipset resume hook. Entering DP Alt
+ * Mode twice will confuse some monitors and require and unplug/replug
+ * to get them to work again. The DP Alt Mode on USB-C spec says that
+ * if we don't need to maintain HPD connectivity info in a low power
+ * mode, then we shall exit DP Alt Mode. (This is why we don't enter
+ * when the SoC is off as opposed to suspend where adding a display
+ * could cause a wake up.)
+ */
+ if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
+ return -1;
+
+ /* Only enter mode if device is DFP_D capable */
+ if (mode_caps & MODE_DP_SNK) {
+ svdm_safe_dp_mode(port);
+
+#ifdef CONFIG_MKBP_EVENT
+ if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND))
+ /*
+ * Wake the system up since we're entering DP AltMode.
+ */
+ pd_notify_dp_alt_mode_entry();
+#endif
+
+ return 0;
+ }
+
+ return -1;
+}
+
+__overridable int svdm_dp_status(int port, uint32_t *payload)
+{
+ int opos = pd_alt_mode(port, USB_SID_DISPLAYPORT);
+
+ payload[0] = VDO(USB_SID_DISPLAYPORT, 1,
+ CMD_DP_STATUS | VDO_OPOS(opos));
+ payload[1] = VDO_DP_STATUS(0, /* HPD IRQ ... not applicable */
+ 0, /* HPD level ... not applicable */
+ 0, /* exit DP? ... no */
+ 0, /* usb mode? ... no */
+ 0, /* multi-function ... no */
+ (!!(dp_flags[port] & DP_FLAGS_DP_ON)),
+ 0, /* power low? ... no */
+ (!!DP_FLAGS_DP_ON));
+ return 2;
+};
+
+__overridable int svdm_dp_config(int port, uint32_t *payload)
+{
+ int opos = pd_alt_mode(port, USB_SID_DISPLAYPORT);
+ int mf_pref = PD_VDO_DPSTS_MF_PREF(dp_status[port]);
+ int pin_mode = pd_dfp_dp_get_pin_mode(port, dp_status[port]);
+ enum typec_mux mux_mode;
+
+ if (!pin_mode)
+ return 0;
+
+ /*
+ * Multi-function operation is only allowed if that pin config is
+ * supported.
+ */
+ mux_mode = ((pin_mode & MODE_DP_PIN_MF_MASK) && mf_pref) ?
+ TYPEC_MUX_DOCK : TYPEC_MUX_DP;
+ CPRINTS("pin_mode: %x, mf: %d, mux: %d", pin_mode, mf_pref, mux_mode);
+
+ /* Connect the SBU and USB lines to the connector. */
+#ifdef CONFIG_USBC_PPC_SBU
+ ppc_set_sbu(port, 1);
+#endif
+ usb_mux_set(port, mux_mode, USB_SWITCH_CONNECT, pd_get_polarity(port));
+
+ payload[0] = VDO(USB_SID_DISPLAYPORT, 1,
+ CMD_DP_CONFIG | VDO_OPOS(opos));
+ payload[1] = VDO_DP_CFG(pin_mode, /* pin mode */
+ 1, /* DPv1.3 signaling */
+ 2); /* UFP connected */
+ return 2;
+};
+
+/*
+ * timestamp of the next possible toggle to ensure the 2-ms spacing
+ * between IRQ_HPD.
+ */
+#ifdef CONFIG_USB_PD_DP_HPD_GPIO
+static uint64_t hpd_deadline[CONFIG_USB_PD_PORT_COUNT];
+#else
+uint64_t hpd_deadline[CONFIG_USB_PD_PORT_COUNT];
+#endif
+#ifndef PORT_TO_HPD
+#define PORT_TO_HPD(port) ((port) ? GPIO_USB_C1_DP_HPD : GPIO_USB_C0_DP_HPD)
+#endif /* PORT_TO_HPD */
+
+__overridable void svdm_dp_post_config(int port)
+{
+ const struct usb_mux *mux = &usb_muxes[port];
+
+ dp_flags[port] |= DP_FLAGS_DP_ON;
+ if (!(dp_flags[port] & DP_FLAGS_HPD_HI_PENDING))
+ return;
+
+#ifdef CONFIG_USB_PD_DP_HPD_GPIO
+ gpio_set_level(PORT_TO_HPD(port), 1);
+
+ /* set the minimum time delay (2ms) for the next HPD IRQ */
+ hpd_deadline[port] = get_time().val + HPD_USTREAM_DEBOUNCE_LVL;
+#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
+
+ if (mux->hpd_update)
+ mux->hpd_update(port, 1, 0);
+
+#ifdef USB_PD_PORT_TCPC_MST
+ if (port == USB_PD_PORT_TCPC_MST)
+ baseboard_mst_enable_control(port, 1);
+#endif
+}
+
+__overridable int svdm_dp_attention(int port, uint32_t *payload)
+{
+ int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]);
+ int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]);
+ const struct usb_mux *mux = &usb_muxes[port];
+#ifdef CONFIG_USB_PD_DP_HPD_GPIO
+ enum gpio_signal hpd = PORT_TO_HPD(port);
+ int cur_lvl = gpio_get_level(hpd);
+#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
+
+ dp_status[port] = payload[1];
+
+ if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND) &&
+ (irq || lvl))
+ /*
+ * Wake up the AP. IRQ or level high indicates a DP sink is now
+ * present.
+ */
+#ifdef CONFIG_MKBP_EVENT
+ pd_notify_dp_alt_mode_entry();
+#endif
+
+ /* Its initial DP status message prior to config */
+ if (!(dp_flags[port] & DP_FLAGS_DP_ON)) {
+ if (lvl)
+ dp_flags[port] |= DP_FLAGS_HPD_HI_PENDING;
+ return 1;
+ }
+
+#ifdef CONFIG_USB_PD_DP_HPD_GPIO
+ if (irq & cur_lvl) {
+ uint64_t now = get_time().val;
+ /* wait for the minimum spacing between IRQ_HPD if needed */
+ if (now < hpd_deadline[port])
+ usleep(hpd_deadline[port] - now);
+
+ /* generate IRQ_HPD pulse */
+ gpio_set_level(hpd, 0);
+ usleep(HPD_DSTREAM_DEBOUNCE_IRQ);
+ gpio_set_level(hpd, 1);
+
+ /* set the minimum time delay (2ms) for the next HPD IRQ */
+ hpd_deadline[port] = get_time().val + HPD_USTREAM_DEBOUNCE_LVL;
+ } else if (irq & !lvl) {
+ /*
+ * IRQ can only be generated when the level is high, because
+ * the IRQ is signaled by a short low pulse from the high level.
+ */
+ CPRINTF("ERR:HPD:IRQ&LOW\n");
+ return 0; /* nak */
+ } else {
+ gpio_set_level(hpd, lvl);
+ /* set the minimum time delay (2ms) for the next HPD IRQ */
+ hpd_deadline[port] = get_time().val + HPD_USTREAM_DEBOUNCE_LVL;
+ }
+#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
+
+ if (mux->hpd_update)
+ mux->hpd_update(port, lvl, irq);
+
+#ifdef USB_PD_PORT_TCPC_MST
+ if (port == USB_PD_PORT_TCPC_MST)
+ baseboard_mst_enable_control(port, lvl);
+#endif
+
+ /* ack */
+ return 1;
+}
+
+__overridable void svdm_exit_dp_mode(int port)
+{
+ const struct usb_mux *mux = &usb_muxes[port];
+
+ svdm_safe_dp_mode(port);
+#ifdef CONFIG_USB_PD_DP_HPD_GPIO
+ gpio_set_level(PORT_TO_HPD(port), 0);
+#endif /* CONFIG_USB_PD_DP_HPD_GPIO */
+ if (mux->hpd_update)
+ mux->hpd_update(port, 0, 0);
+#ifdef USB_PD_PORT_TCPC_MST
+ if (port == USB_PD_PORT_TCPC_MST)
+ baseboard_mst_enable_control(port, 0);
+#endif
+}
+
+__overridable int svdm_enter_gfu_mode(int port, uint32_t mode_caps)
+{
+ /* Always enter GFU mode */
+ return 0;
+}
+
+__overridable void svdm_exit_gfu_mode(int port)
+{
+}
+
+__overridable int svdm_gfu_status(int port, uint32_t *payload)
+{
+ /*
+ * This is called after enter mode is successful, send unstructured
+ * VDM to read info.
+ */
+ pd_send_vdm(port, USB_VID_GOOGLE, VDO_CMD_READ_INFO, NULL, 0);
+ return 0;
+}
+
+__overridable int svdm_gfu_config(int port, uint32_t *payload)
+{
+ return 0;
+}
+
+__overridable int svdm_gfu_attention(int port, uint32_t *payload)
+{
+ return 0;
+}
+
+const struct svdm_amode_fx supported_modes[] = {
+ {
+ .svid = USB_SID_DISPLAYPORT,
+ .enter = &svdm_enter_dp_mode,
+ .status = &svdm_dp_status,
+ .config = &svdm_dp_config,
+ .post_config = &svdm_dp_post_config,
+ .attention = &svdm_dp_attention,
+ .exit = &svdm_exit_dp_mode,
+ },
+
+ {
+ .svid = USB_VID_GOOGLE,
+ .enter = &svdm_enter_gfu_mode,
+ .status = &svdm_gfu_status,
+ .config = &svdm_gfu_config,
+ .attention = &svdm_gfu_attention,
+ .exit = &svdm_exit_gfu_mode,
+ }
+};
+const int supported_modes_cnt = ARRAY_SIZE(supported_modes);
+#endif /* CONFIG_USB_PD_ALT_MODE_DFP */