diff options
Diffstat (limited to 'common/usbc/usbc_task.c')
| -rw-r--r-- | common/usbc/usbc_task.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/common/usbc/usbc_task.c b/common/usbc/usbc_task.c deleted file mode 100644 index 09be36cd5e..0000000000 --- a/common/usbc/usbc_task.c +++ /dev/null @@ -1,182 +0,0 @@ -/* Copyright 2019 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 "battery.h" -#include "battery_smart.h" -#include "board.h" -#include "charge_manager.h" -#include "charge_state.h" -#include "chipset.h" -#include "common.h" -#include "console.h" -#include "cros_version.h" -#include "ec_commands.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "registers.h" -#include "system.h" -#include "task.h" -#include "timer.h" -#include "util.h" -#include "usb_charge.h" -#include "usb_mux.h" -#include "usb_pd.h" -#include "usb_pd_timer.h" -#include "usb_prl_sm.h" -#include "tcpm/tcpm.h" -#include "usb_pe_sm.h" -#include "usb_prl_sm.h" -#include "usb_sm.h" -#include "usb_tc_sm.h" -#include "usbc_ppc.h" - -#define USBC_EVENT_TIMEOUT (5 * MSEC) -#define USBC_MIN_EVENT_TIMEOUT (1 * MSEC) - -#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args) -#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args) - -/* - * If CONFIG_ASSERT_CCD_MODE_ON_DTS_CONNECT is not defined then - * _GPIO_CCD_MODE_ODL is not needed. Declare as extern so IS_ENABLED will work. - */ -#ifndef CONFIG_ASSERT_CCD_MODE_ON_DTS_CONNECT -extern int _GPIO_CCD_MODE_ODL; -#else -#define _GPIO_CCD_MODE_ODL GPIO_CCD_MODE_ODL -#endif /* CONFIG_ASSERT_CCD_MODE_ON_DTS_CONNECT */ - -static uint8_t paused[CONFIG_USB_PD_PORT_MAX_COUNT]; - -void tc_pause_event_loop(int port) -{ - paused[port] = 1; -} - -bool tc_event_loop_is_paused(int port) -{ - return paused[port]; -} - -void tc_start_event_loop(int port) -{ - /* - * Only generate TASK_EVENT_WAKE event if state - * machine is transitioning to un-paused - */ - if (paused[port]) { - paused[port] = 0; - task_set_event(PD_PORT_TO_TASK_ID(port), TASK_EVENT_WAKE); - } -} - -static void pd_task_init(int port) -{ - if (IS_ENABLED(CONFIG_USB_TYPEC_SM)) - tc_state_init(port); - paused[port] = 0; - - /* - * Since most boards configure the TCPC interrupt as edge - * and it is possible that the interrupt line was asserted between init - * and calling set_state, we need to process any pending interrupts now. - * Otherwise future interrupts will never fire because another edge - * never happens. Note this needs to happen after set_state() is called. - */ - if (IS_ENABLED(CONFIG_HAS_TASK_PD_INT)) - schedule_deferred_pd_interrupt(port); - - /* - * GPIO_CCD_MODE_ODL must be initialized with GPIO_ODR_HIGH - * when CONFIG_ASSERT_CCD_MODE_ON_DTS_CONNECT is enabled - */ - if (IS_ENABLED(CONFIG_ASSERT_CCD_MODE_ON_DTS_CONNECT)) - ASSERT(gpio_get_default_flags(_GPIO_CCD_MODE_ODL) & - GPIO_ODR_HIGH); -} - -static int pd_task_timeout(int port) -{ - int timeout; - - if (paused[port]) - timeout = -1; - else { - timeout = pd_timer_next_expiration(port); - if (timeout < 0 || timeout > USBC_EVENT_TIMEOUT) - timeout = USBC_EVENT_TIMEOUT; - else if (timeout < USBC_MIN_EVENT_TIMEOUT) - timeout = USBC_MIN_EVENT_TIMEOUT; - } - return timeout; -} - -static bool pd_task_loop(int port) -{ - /* wait for next event/packet or timeout expiration */ - const uint32_t evt = task_wait_event(pd_task_timeout(port)); - - /* Manage expired PD Timers on timeouts */ - if (evt & TASK_EVENT_TIMER) - pd_timer_manage_expired(port); - - /* - * Re-use TASK_EVENT_RESET_DONE in tests to restart the USB task - * if this code is running in a unit test. - */ - if (IS_ENABLED(TEST_BUILD) && (evt & TASK_EVENT_RESET_DONE)) - return false; - - /* handle events that affect the state machine as a whole */ - if (IS_ENABLED(CONFIG_USB_TYPEC_SM)) - tc_event_check(port, evt); - - /* - * run port controller task to check CC and/or read incoming - * messages - */ - if (IS_ENABLED(CONFIG_USB_PD_TCPC)) - tcpc_run(port, evt); - - /* Run policy engine state machine */ - if (IS_ENABLED(CONFIG_USB_PE_SM)) - pe_run(port, evt, tc_get_pd_enabled(port)); - - /* Run protocol state machine */ - if (IS_ENABLED(CONFIG_USB_PRL_SM) || IS_ENABLED(CONFIG_TEST_USB_PE_SM)) - prl_run(port, evt, tc_get_pd_enabled(port)); - - /* Run TypeC state machine */ - if (IS_ENABLED(CONFIG_USB_TYPEC_SM)) - tc_run(port); - - return true; -} - -void pd_task(void *u) -{ - int port = TASK_ID_TO_PD_PORT(task_get_current()); - - /* - * If port does not exist, return - */ - if (port >= board_get_usb_pd_port_count()) - return; - - while (1) { - pd_timer_init(port); - pd_task_init(port); - - /* As long as pd_task_loop returns true, keep running the loop. - * pd_task_loop returns false when the code needs to re-init - * the task, so once the code breaks out of the inner while - * loop, the re-init code at the top of the outer while loop - * will run. - */ - while (pd_task_loop(port)) - continue; - } -} |