diff options
Diffstat (limited to 'common/usbc/usb_retimer_fw_update.c')
| -rw-r--r-- | common/usbc/usb_retimer_fw_update.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/common/usbc/usb_retimer_fw_update.c b/common/usbc/usb_retimer_fw_update.c deleted file mode 100644 index 1ff198c78f..0000000000 --- a/common/usbc/usb_retimer_fw_update.c +++ /dev/null @@ -1,189 +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 <stdbool.h> -#include <stdint.h> -#include "compile_time_macros.h" -#include "console.h" -#include "hooks.h" -#include "timer.h" -#include "usb_common.h" -#include "usb_mux.h" -#include "usb_tc_sm.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 - -/* - * Retimer firmware update is initiated by AP. - * The operations requested by AP are: - * 0 - USB_RETIMER_FW_UPDATE_QUERY_PORT - * 1 - USB_RETIMER_FW_UPDATE_SUSPEND_PD - * 2 - USB_RETIMER_FW_UPDATE_RESUME_PD - * 3 - USB_RETIMER_FW_UPDATE_GET_MUX - * 4 - USB_RETIMER_FW_UPDATE_SET_USB - * 5 - USB_RETIMER_FW_UPDATE_SET_SAFE - * 6 - USB_RETIMER_FW_UPDATE_SET_TBT - * 7 - USB_RETIMER_FW_UPDATE_DISCONNECT - * - * Operation 0 is processed immediately. - * Operations 1 to 7 are deferred and processed inside tc_run(). - * Operations 1/2/3 can be processed any time; while 4/5/6/7 have - * to be processed when PD task is suspended. - * Two TC flags are created for this situation. - * If Op 1/2/3 is received, TC_FLAGS_USB_RETIMER_FW_UPDATE_RUN - * is set, PD task will be waken up and process it. - * If 4/5/6/7 is received, TC_FLAGS_USB_RETIMER_FW_UPDATE_LTD_RUN is - * set, PD task should be in suspended mode and process it. - * - */ - -#define SUSPEND 1 -#define RESUME 0 - -/* Track current port AP requested to update retimer firmware */ -static int cur_port; -static int last_op; /* Operation received from AP via ACPI_WRITE */ -/* Operation result returned to ACPI_READ */ -static int last_result; - -int usb_retimer_fw_update_get_result(void) -{ - int result = 0; - - switch (last_op) { - case USB_RETIMER_FW_UPDATE_SUSPEND_PD: - if (last_result == USB_RETIMER_FW_UPDATE_ERR) { - result = last_result; - break; - } - /* fall through */ - case USB_RETIMER_FW_UPDATE_RESUME_PD: - result = pd_is_port_enabled(cur_port); - break; - case USB_RETIMER_FW_UPDATE_QUERY_PORT: - result = usb_mux_retimer_fw_update_port_info(); - break; - case USB_RETIMER_FW_UPDATE_GET_MUX: - case USB_RETIMER_FW_UPDATE_SET_USB: - case USB_RETIMER_FW_UPDATE_SET_SAFE: - case USB_RETIMER_FW_UPDATE_SET_TBT: - case USB_RETIMER_FW_UPDATE_DISCONNECT: - result = last_result; - break; - default: - break; - } - - return result; -} - -static void deferred_pd_suspend(void) -{ - pd_set_suspend(cur_port, SUSPEND); -} -DECLARE_DEFERRED(deferred_pd_suspend); - -static inline mux_state_t retimer_fw_update_usb_mux_get(int port) -{ - return usb_mux_get(port) & USB_RETIMER_FW_UPDATE_MUX_MASK; -} - -void usb_retimer_fw_update_process_op_cb(int port) -{ - switch (last_op) { - case USB_RETIMER_FW_UPDATE_SUSPEND_PD: - last_result = 0; - /* - * Do not perform retimer firmware update process - * if battery is not present, or battery level is low. - */ - if (!pd_firmware_upgrade_check_power_readiness(port)) { - last_result = USB_RETIMER_FW_UPDATE_ERR; - break; - } - - /* - * If the port has entered low power mode, the PD task - * is paused and will not complete processing of - * pd_set_suspend(). Move pd_set_suspend() into a deferred - * call so that it runs from the HOOKS task and can generate - * a wake event to the PD task and enter suspended mode. - */ - hook_call_deferred(&deferred_pd_suspend_data, 0); - break; - case USB_RETIMER_FW_UPDATE_RESUME_PD: - pd_set_suspend(port, RESUME); - break; - case USB_RETIMER_FW_UPDATE_GET_MUX: - last_result = retimer_fw_update_usb_mux_get(port); - break; - case USB_RETIMER_FW_UPDATE_SET_USB: - usb_mux_set(port, USB_PD_MUX_USB_ENABLED, - USB_SWITCH_CONNECT, pd_get_polarity(port)); - last_result = retimer_fw_update_usb_mux_get(port); - break; - case USB_RETIMER_FW_UPDATE_SET_SAFE: - usb_mux_set_safe_mode(port); - last_result = retimer_fw_update_usb_mux_get(port); - break; - case USB_RETIMER_FW_UPDATE_SET_TBT: - usb_mux_set(port, USB_PD_MUX_TBT_COMPAT_ENABLED, - USB_SWITCH_CONNECT, pd_get_polarity(port)); - last_result = retimer_fw_update_usb_mux_get(port); - break; - case USB_RETIMER_FW_UPDATE_DISCONNECT: - usb_mux_set(port, USB_PD_MUX_NONE, - USB_SWITCH_DISCONNECT, pd_get_polarity(port)); - last_result = retimer_fw_update_usb_mux_get(port); - break; - default: - break; - } -} - -void usb_retimer_fw_update_process_op(int port, int op) -{ - ASSERT(port >= 0 && port < CONFIG_USB_PD_PORT_MAX_COUNT); - - /* - * TODO(b/179220036): check not overlapping requests; - * not change cur_port if retimer scan is in progress - */ - last_op = op; - - switch (op) { - case USB_RETIMER_FW_UPDATE_QUERY_PORT: - break; - /* Operations can't be processed in ISR, defer to later */ - case USB_RETIMER_FW_UPDATE_GET_MUX: - last_result = USB_RETIMER_FW_UPDATE_INVALID_MUX; - tc_usb_firmware_fw_update_run(port); - break; - case USB_RETIMER_FW_UPDATE_SUSPEND_PD: - case USB_RETIMER_FW_UPDATE_RESUME_PD: - cur_port = port; - tc_usb_firmware_fw_update_run(port); - break; - case USB_RETIMER_FW_UPDATE_SET_USB: - case USB_RETIMER_FW_UPDATE_SET_SAFE: - case USB_RETIMER_FW_UPDATE_SET_TBT: - case USB_RETIMER_FW_UPDATE_DISCONNECT: - if (pd_is_port_enabled(port)) { - last_result = USB_RETIMER_FW_UPDATE_ERR; - } else { - last_result = USB_RETIMER_FW_UPDATE_INVALID_MUX; - tc_usb_firmware_fw_update_limited_run(port); - } - break; - default: - break; - } -} |