diff options
Diffstat (limited to 'baseboard/herobrine/usb_pd_policy.c')
| -rw-r--r-- | baseboard/herobrine/usb_pd_policy.c | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/baseboard/herobrine/usb_pd_policy.c b/baseboard/herobrine/usb_pd_policy.c deleted file mode 100644 index 7ca2688aef..0000000000 --- a/baseboard/herobrine/usb_pd_policy.c +++ /dev/null @@ -1,262 +0,0 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "charge_manager.h" -#include "chipset.h" -#include "console.h" -#include "gpio.h" -#include "system.h" -#include "usb_mux.h" -#include "usbc_ppc.h" -#include "util.h" - -#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) -#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) - -int pd_check_vconn_swap(int port) -{ - /* In G3, do not allow vconn swap since PP5000 rail is off */ - return gpio_get_level(GPIO_EN_PP5000); -} - -static uint8_t vbus_en[CONFIG_USB_PD_PORT_MAX_COUNT]; -#if CONFIG_USB_PD_PORT_MAX_COUNT == 1 -static uint8_t vbus_rp[CONFIG_USB_PD_PORT_MAX_COUNT] = {TYPEC_RP_1A5}; -#else -static uint8_t vbus_rp[CONFIG_USB_PD_PORT_MAX_COUNT] = {TYPEC_RP_1A5, - TYPEC_RP_1A5}; -#endif - -static void board_vbus_update_source_current(int port) -{ - /* Both port are controlled by PPC SN5S330. */ - ppc_set_vbus_source_current_limit(port, vbus_rp[port]); - ppc_vbus_source_enable(port, vbus_en[port]); -} - -void pd_power_supply_reset(int port) -{ - int prev_en; - - prev_en = vbus_en[port]; - - /* Disable VBUS */ - vbus_en[port] = 0; - board_vbus_update_source_current(port); - - /* Enable discharge if we were previously sourcing 5V */ - if (prev_en) - pd_set_vbus_discharge(port, 1); - - /* notify host of power info change */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); -} - -int pd_set_power_supply_ready(int port) -{ - /* Disable charging */ - board_vbus_sink_enable(port, 0); - - pd_set_vbus_discharge(port, 0); - - /* Provide VBUS */ - vbus_en[port] = 1; - board_vbus_update_source_current(port); - - /* notify host of power info change */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); - - return EC_SUCCESS; /* we are ready */ -} - -int board_vbus_source_enabled(int port) -{ - return vbus_en[port]; -} - -__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp) -{ - vbus_rp[port] = rp; - board_vbus_update_source_current(port); -} - -int pd_snk_is_vbus_provided(int port) -{ - return tcpm_check_vbus_level(port, VBUS_PRESENT); -} - -/* ----------------- Vendor Defined Messages ------------------ */ -#ifdef CONFIG_USB_PD_ALT_MODE_DFP -__override int svdm_dp_config(int port, uint32_t *payload) -{ - int opos = pd_alt_mode(port, TCPCI_MSG_SOP, USB_SID_DISPLAYPORT); - uint8_t pin_mode = get_dp_pin_mode(port); - - if (!pin_mode) - return 0; - - /* - * Defer setting the usb_mux until HPD goes high, svdm_dp_attention(). - * The AP only supports one DP phy. An external DP mux switches between - * the two ports. Should switch those muxes when it is really used, - * i.e. HPD high; otherwise, the real use case is preempted, like: - * (1) plug a dongle without monitor connected to port-0, - * (2) plug a dongle without monitor connected to port-1, - * (3) plug a monitor to the port-1 dongle. - */ - - 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; -}; - -__override void svdm_dp_post_config(int port) -{ - dp_flags[port] |= DP_FLAGS_DP_ON; -} - -/** - * Is the port fine to be muxed its DisplayPort lines? - * - * Only one port can be muxed to DisplayPort at a time. - * - * @param port Port number of TCPC. - * @return 1 is fine; 0 is bad as other port is already muxed; - */ -static int is_dp_muxable(int port) -{ - int i; - - for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) - if (i != port) { - if (usb_mux_get(i) & USB_PD_MUX_DP_ENABLED) - return 0; - } - - return 1; -} - -__override int svdm_dp_attention(int port, uint32_t *payload) -{ - enum gpio_signal hpd = GPIO_DP_HOT_PLUG_DET; - int lvl = PD_VDO_DPSTS_HPD_LVL(payload[1]); - int irq = PD_VDO_DPSTS_HPD_IRQ(payload[1]); - int cur_lvl = gpio_get_level(hpd); - mux_state_t mux_state; - - dp_status[port] = payload[1]; - - if (!is_dp_muxable(port)) { - /* TODO(waihong): Info user? */ - CPRINTS("p%d: The other port is already muxed.", port); - return 0; - } - - /* - * Initial implementation to handle HPD. Only the first-plugged port - * works, i.e. sending HPD signal to AP. The second-plugged port - * will be ignored. - * - * TODO(waihong): Continue the above case, if the first-plugged port - * is then unplugged, switch to the second-plugged port and signal AP? - */ - if (lvl) { - /* - * Enable and switch the DP port selection mux to the - * correct port. - * - * TODO(waihong): Better to move switching DP mux to - * the usb_mux abstraction. - */ - gpio_set_level(GPIO_DP_MUX_SEL, port == 1); - gpio_set_level(GPIO_DP_MUX_OE_L, 0); - - /* Connect the SBU lines in PPC chip. */ - if (IS_ENABLED(CONFIG_USBC_PPC_SBU)) - ppc_set_sbu(port, 1); - - /* - * Connect the USB SS/DP lines in TCPC chip. - * - * When mf_pref not true, still use the dock muxing - * because of the board USB-C topology (limited to 2 - * lanes DP). - */ - usb_mux_set(port, USB_PD_MUX_DOCK, - USB_SWITCH_CONNECT, - polarity_rm_dts(pd_get_polarity(port))); - } else { - /* Disconnect the DP port selection mux. */ - gpio_set_level(GPIO_DP_MUX_OE_L, 1); - gpio_set_level(GPIO_DP_MUX_SEL, 0); - - /* Disconnect the SBU lines in PPC chip. */ - if (IS_ENABLED(CONFIG_USBC_PPC_SBU)) - ppc_set_sbu(port, 0); - - /* Disconnect the DP but keep the USB SS lines in TCPC chip. */ - usb_mux_set(port, USB_PD_MUX_USB_ENABLED, - USB_SWITCH_CONNECT, - polarity_rm_dts(pd_get_polarity(port))); - } - - 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. - */ - pd_notify_dp_alt_mode_entry(port); - - /* Configure TCPC for the HPD event, for proper muxing */ - mux_state = (lvl ? USB_PD_MUX_HPD_LVL : USB_PD_MUX_HPD_LVL_DEASSERTED) | - (irq ? USB_PD_MUX_HPD_IRQ : USB_PD_MUX_HPD_IRQ_DEASSERTED); - usb_mux_hpd_update(port, mux_state); - - /* Signal AP for the HPD event, through GPIO to AP */ - if (irq & cur_lvl) { - uint64_t now = get_time().val; - /* Wait for the minimum spacing between IRQ_HPD if needed */ - if (now < svdm_hpd_deadline[port]) - usleep(svdm_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 */ - svdm_hpd_deadline[port] = get_time().val + - HPD_USTREAM_DEBOUNCE_LVL; - } else if (irq & !lvl) { - CPRINTF("ERR:HPD:IRQ&LOW\n"); - return 0; - } else { - gpio_set_level(hpd, lvl); - /* Set the minimum time delay (2ms) for the next HPD IRQ */ - svdm_hpd_deadline[port] = get_time().val + - HPD_USTREAM_DEBOUNCE_LVL; - } - - return 1; -} - -__override void svdm_exit_dp_mode(int port) -{ - if (is_dp_muxable(port)) { - /* Disconnect the DP port selection mux. */ - gpio_set_level(GPIO_DP_MUX_OE_L, 1); - gpio_set_level(GPIO_DP_MUX_SEL, 0); - - /* Signal AP for the HPD low event */ - usb_mux_hpd_update(port, USB_PD_MUX_HPD_LVL_DEASSERTED | - USB_PD_MUX_HPD_IRQ_DEASSERTED); - gpio_set_level(GPIO_DP_HOT_PLUG_DET, 0); - } -} -#endif /* CONFIG_USB_PD_ALT_MODE_DFP */ |