diff options
Diffstat (limited to 'common/host_command_pd.c')
-rw-r--r-- | common/host_command_pd.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/common/host_command_pd.c b/common/host_command_pd.c deleted file mode 100644 index f9b67c8b8d..0000000000 --- a/common/host_command_pd.c +++ /dev/null @@ -1,229 +0,0 @@ -/* Copyright 2014 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. - */ - -/* Host command module for PD MCU */ - -#include "charge_state.h" -#include "common.h" -#include "console.h" -#include "gpio.h" -#include "host_command.h" -#include "lightbar.h" -#include "panic.h" -#include "system.h" -#include "task.h" -#include "tcpm/tcpm.h" -#include "timer.h" -#include "usb_pd.h" -#include "usb_pd_tcpm.h" -#include "util.h" - -#define CPRINTS(format, args...) cprints(CC_PD_HOST_CMD, format, ## args) - -#define TASK_EVENT_EXCHANGE_PD_STATUS TASK_EVENT_CUSTOM_BIT(0) -#define TASK_EVENT_HIBERNATING TASK_EVENT_CUSTOM_BIT(1) - -/* Define local option for if we are a TCPM with an off chip TCPC */ -#if defined(CONFIG_USB_POWER_DELIVERY) && !defined(CONFIG_USB_PD_TCPM_STUB) -#define USB_TCPM_WITH_OFF_CHIP_TCPC -#endif - -#ifdef CONFIG_HOSTCMD_PD_CHG_CTRL -/* By default allow 5V charging only for the dead battery case */ -static enum pd_charge_state charge_state = PD_CHARGE_5V; - -#define CHARGE_PORT_UNINITIALIZED -2 -static int charge_port = CHARGE_PORT_UNINITIALIZED; - -int pd_get_active_charge_port(void) -{ - return charge_port; -} -#endif /* CONFIG_HOSTCMD_PD_CHG_CTRL */ - -void host_command_pd_send_status(enum pd_charge_state new_chg_state) -{ -#ifdef CONFIG_HOSTCMD_PD_CHG_CTRL - /* Update PD MCU charge state if necessary */ - if (new_chg_state != PD_CHARGE_NO_CHANGE) - charge_state = new_chg_state; -#endif - /* Wake PD HC task to send status */ - task_set_event(TASK_ID_PDCMD, TASK_EVENT_EXCHANGE_PD_STATUS); -} - -void host_command_pd_request_hibernate(void) -{ - task_set_event(TASK_ID_PDCMD, TASK_EVENT_HIBERNATING); -} - -#ifdef CONFIG_HOSTCMD_PD -static int pd_send_host_command(struct ec_params_pd_status *ec_status, - struct ec_response_pd_status *pd_status) -{ - return pd_host_command(EC_CMD_PD_EXCHANGE_STATUS, - EC_VER_PD_EXCHANGE_STATUS, ec_status, - sizeof(struct ec_params_pd_status), pd_status, - sizeof(struct ec_response_pd_status)); -} - -static void pd_exchange_update_ec_status(struct ec_params_pd_status *ec_status, - uint32_t ec_state) -{ - /* Send PD charge state and battery state of charge */ -#ifdef CONFIG_HOSTCMD_PD_CHG_CTRL - ec_status->charge_state = charge_state; -#endif - if (charge_get_flags() & CHARGE_FLAG_BATT_RESPONSIVE) - ec_status->batt_soc = charge_get_percent(); - else - ec_status->batt_soc = -1; - ec_status->status = ec_state; -} - -#ifdef CONFIG_HOSTCMD_PD_PANIC -static void pd_check_panic(struct ec_response_pd_status *pd_status) -{ - static int pd_in_rw; - - /* - * Check if PD MCU is in RW. If PD MCU was in RW, is now in RO, - * AND it did not sysjump to RO, then it must have crashed, and - * therefore we should panic as well. - */ - if (pd_status->status & PD_STATUS_IN_RW) { - pd_in_rw = 1; - } else if (pd_in_rw && - !(pd_status->status & PD_STATUS_JUMPED_TO_IMAGE)) { - panic_printf("PD crash"); - software_panic(PANIC_SW_PD_CRASH, 0); - } -} -#endif /* CONFIG_HOSTCMD_PD_PANIC */ - -#ifdef CONFIG_HOSTCMD_PD_CHG_CTRL -static void pd_check_chg_status(struct ec_response_pd_status *pd_status) -{ - int rv; -#ifdef HAS_TASK_LIGHTBAR - /* - * If charge port has changed, and it was initialized, then show - * battery status on lightbar. - */ - if (pd_status->active_charge_port != charge_port) { - if (charge_port != CHARGE_PORT_UNINITIALIZED) { - charge_port = pd_status->active_charge_port; - lightbar_sequence(LIGHTBAR_TAP); - } else { - charge_port = pd_status->active_charge_port; - } - } -#else - /* Store the active charge port */ - charge_port = pd_status->active_charge_port; -#endif - - /* Set input current limit */ - rv = charge_set_input_current_limit(MAX(pd_status->curr_lim_ma, - CONFIG_CHARGER_INPUT_CURRENT), 0); - if (rv < 0) - CPRINTS("Failed to set input curr limit from PD MCU"); -} -#endif /* CONFIG_HOSTCMD_PD_CHG_CTRL */ -#endif /* CONFIG_HOSTCMD_PD */ - -#ifdef USB_TCPM_WITH_OFF_CHIP_TCPC -static void pd_service_tcpc_ports(uint16_t port_status) -{ - int i; - - for (i = 0; i < board_get_usb_pd_port_count(); i++) { - if ((port_status & (PD_STATUS_TCPC_ALERT_0 << i)) && - pd_is_port_enabled(i)) - tcpc_alert(i); - } -} - -static int pd_get_alert(void) -{ -#ifdef CONFIG_HOSTCMD_PD - return !gpio_get_level(GPIO_PD_MCU_INT); -#else - return !!tcpc_get_alert_status(); -#endif -} - -#endif /* USB_TCPM_WITH_OFF_CHIP_TCPC */ - -static void pd_exchange_status(uint32_t ec_state) -{ -#ifdef USB_TCPM_WITH_OFF_CHIP_TCPC - int first_exchange = 1; -#endif - -#ifdef CONFIG_HOSTCMD_PD - struct ec_params_pd_status ec_status; - struct ec_response_pd_status pd_status; - int rv; - - pd_exchange_update_ec_status(&ec_status, ec_state); -#endif - -#ifdef USB_TCPM_WITH_OFF_CHIP_TCPC - /* Loop until the alert gpio is not active */ - do { -#endif - -#ifdef CONFIG_HOSTCMD_PD - rv = pd_send_host_command(&ec_status, &pd_status); - if (rv < 0) { - CPRINTS("Host command to PD MCU failed: %d", rv); - return; - } - -#ifdef CONFIG_HOSTCMD_PD_PANIC - pd_check_panic(&pd_status); -#endif - -#ifdef CONFIG_HOSTCMD_PD_CHG_CTRL - pd_check_chg_status(&pd_status); -#endif -#endif /* CONFIG_HOSTCMD_PD */ - -#ifdef USB_TCPM_WITH_OFF_CHIP_TCPC -#ifdef CONFIG_HOSTCMD_PD - pd_service_tcpc_ports(pd_status.status); -#else - pd_service_tcpc_ports(tcpc_get_alert_status()); -#endif - - if (!first_exchange) - /* Delay to prevent task starvation */ - usleep(5*MSEC); - first_exchange = 0; - } while (pd_get_alert()); -#endif /* USB_TCPM_WITH_OFF_CHIP_TCPC */ -} - -void pd_command_task(void *u) -{ - /* On startup exchange status with the PD */ - pd_exchange_status(0); - - while (1) { - /* Wait for the next command event */ - int evt = task_wait_event(-1); - uint32_t ec_state = 0; - - if (evt & TASK_EVENT_HIBERNATING) - ec_state = EC_STATUS_HIBERNATING; - - /* Process event to send status to PD */ - if ((evt & TASK_EVENT_EXCHANGE_PD_STATUS) || - (evt & TASK_EVENT_HIBERNATING)) - pd_exchange_status(ec_state); - } -} - |