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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /common/usbc/usb_pd_timer.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-252457d4b21f46889eebad61d4c0a65331919cec.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'common/usbc/usb_pd_timer.c')
-rw-r--r--common/usbc/usb_pd_timer.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/common/usbc/usb_pd_timer.c b/common/usbc/usb_pd_timer.c
deleted file mode 100644
index 67a574904f..0000000000
--- a/common/usbc/usb_pd_timer.c
+++ /dev/null
@@ -1,268 +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 "assert.h"
-#include "common.h"
-#include "console.h"
-#include "limits.h"
-#include "system.h"
-#include "usb_pd_timer.h"
-#include "usb_tc_sm.h"
-
-#define MAX_PD_PORTS CONFIG_USB_PD_PORT_MAX_COUNT
-#define MAX_PD_TIMERS PD_TIMER_COUNT
-#define PD_TIMERS_ALL_MASK ((uint32_t)(((uint64_t)1 << PD_TIMER_COUNT) - 1))
-
-#define MAX_EXPIRE (0x7FFFFFFF)
-#define NO_TIMEOUT (-1)
-#define EXPIRE_NOW (0)
-
-#define PD_SET_ACTIVE(p, m) atomic_or(&timer_active[p], (m))
-#define PD_CLR_ACTIVE(p, m) atomic_clear_bits(&timer_active[p], (m))
-#define PD_CHK_ACTIVE(p, m) (timer_active[p] & (m))
-
-#define PD_SET_DISABLED(p, m) atomic_or(&timer_disabled[p], (m))
-#define PD_CLR_DISABLED(p, m) atomic_clear_bits(&timer_disabled[p], (m))
-#define PD_CHK_DISABLED(p, m) (timer_disabled[p] & (m))
-
-static uint32_t timer_active[MAX_PD_PORTS];
-static uint32_t timer_disabled[MAX_PD_PORTS];
-static uint64_t timer_expires[MAX_PD_PORTS][MAX_PD_TIMERS];
-
-/*
- * CONFIG_CMD_PD_TIMER debug variables
- */
-static int count[MAX_PD_PORTS];
-static int max_count[MAX_PD_PORTS];
-
-__maybe_unused static __const_data const char * const pd_timer_names[] = {
- [PE_TIMER_BIST_CONT_MODE] = "PE-BIST_CONT_MODE",
- [PE_TIMER_CHUNKING_NOT_SUPPORTED] = "PE-CHUNKING_NOT_SUPPORTED",
- [PE_TIMER_DISCOVER_IDENTITY] = "PE-DISCOVER_IDENTITY",
- [PE_TIMER_NO_RESPONSE] = "PE-NO_RESPONSE",
- [PE_TIMER_PR_SWAP_WAIT] = "PE-PR_SWAP_WAIT",
- [PE_TIMER_PS_HARD_RESET] = "PE-PS_HARD_RESET",
- [PE_TIMER_PS_SOURCE] = "PE-PS_SOURCE",
- [PE_TIMER_PS_TRANSITION] = "PE-PS_TRANSITION",
- [PE_TIMER_SENDER_RESPONSE] = "PE-SENDER_RESPONSE",
- [PE_TIMER_SINK_REQUEST] = "PE-SINK_REQUEST",
- [PE_TIMER_SOURCE_CAP] = "PE-SOURCE_CAP",
- [PE_TIMER_SRC_TRANSITION] = "PE-SRC_TRANSITION",
- [PE_TIMER_SWAP_SOURCE_START] = "PE-SWAP_SOURCE_START",
- [PE_TIMER_TIMEOUT] = "PE-TIMEOUT",
- [PE_TIMER_VCONN_ON] = "PE-VCONN_ON",
- [PE_TIMER_VDM_RESPONSE] = "PE-VDM_RESPONSE",
- [PE_TIMER_WAIT_AND_ADD_JITTER] = "PE-WAIT_AND_ADD_JITTER",
-
- [PR_TIMER_CHUNK_SENDER_REQUEST] = "PR-CHUNK_SENDER_REQUEST",
- [PR_TIMER_CHUNK_SENDER_RESPONSE] = "PR-CHUNK_SENDER_RESPONSE",
- [PR_TIMER_HARD_RESET_COMPLETE] = "PR-HARD_RESET_COMPLETE",
- [PR_TIMER_SINK_TX] = "PR-SINK_TX",
- [PR_TIMER_TCPC_TX_TIMEOUT] = "PR-TCPC_TX_TIMEOUT",
-
- [TC_TIMER_CC_DEBOUNCE] = "TC-CC_DEBOUNCE",
- [TC_TIMER_LOW_POWER_EXIT_TIME] = "TC-LOW_POWER_EXIT_TIME",
- [TC_TIMER_LOW_POWER_TIME] = "TC-LOW_POWER_TIME",
- [TC_TIMER_NEXT_ROLE_SWAP] = "TC-NEXT_ROLE_SWAP",
- [TC_TIMER_PD_DEBOUNCE] = "TC-PD_DEBOUNCE",
- [TC_TIMER_TIMEOUT] = "TC-TIMEOUT",
- [TC_TIMER_TRY_WAIT_DEBOUNCE] = "TC-TRY_WAIT_DEBOUNCE",
- [TC_TIMER_VBUS_DEBOUNCE] = "TC-VBUS_DEBOUNCE",
-};
-
-/*****************************************************************************
- * PD_TIMER private functions
- *
- * The view of timers to the outside world is enabled and disabled. Internally
- * timers that are enabled are in the active and inactive states. An active
- * timer has a valid timeout value that gets checked for expiration and can
- * adjust the task wakeup time. An inactive timer is assumed to have expired
- * already and will always return that it is still expired. This timer state
- * will not adjust the task scheduling timeout value.
- */
-static void pd_timer_inactive(int port, enum pd_task_timer timer)
-{
- uint32_t mask = 1 << timer;
-
- if (PD_CHK_ACTIVE(port, mask)) {
- PD_CLR_ACTIVE(port, mask);
-
- if (IS_ENABLED(CONFIG_CMD_PD_TIMER))
- count[port]--;
- }
- PD_CLR_DISABLED(port, mask);
-}
-
-static bool pd_timer_is_active(int port, enum pd_task_timer timer)
-{
- uint32_t mask = 1 << timer;
-
- return PD_CHK_ACTIVE(port, mask);
-}
-
-static bool pd_timer_is_inactive(int port, enum pd_task_timer timer)
-{
- uint32_t mask = 1 << timer;
-
- return !PD_CHK_ACTIVE(port, mask) && !PD_CHK_DISABLED(port, mask);
-}
-
-/*****************************************************************************
- * PD_TIMER public functions
- */
-void pd_timer_init(int port)
-{
- if (IS_ENABLED(CONFIG_CMD_PD_TIMER))
- count[port] = 0;
-
- PD_CLR_ACTIVE(port, PD_TIMERS_ALL_MASK);
- PD_SET_DISABLED(port, PD_TIMERS_ALL_MASK);
-}
-
-void pd_timer_enable(int port, enum pd_task_timer timer, uint32_t expires_us)
-{
- uint32_t mask = 1 << timer;
-
- if (!PD_CHK_ACTIVE(port, mask)) {
- PD_SET_ACTIVE(port, mask);
-
- if (IS_ENABLED(CONFIG_CMD_PD_TIMER)) {
- count[port]++;
- if (count[port] > max_count[port])
- max_count[port] = count[port];
- }
- }
- PD_CLR_DISABLED(port, mask);
- timer_expires[port][timer] = get_time().val + expires_us;
-}
-
-void pd_timer_disable(int port, enum pd_task_timer timer)
-{
- uint32_t mask = 1 << timer;
-
- if (PD_CHK_ACTIVE(port, mask)) {
- PD_CLR_ACTIVE(port, mask);
-
- if (IS_ENABLED(CONFIG_CMD_PD_TIMER))
- count[port]--;
- }
- PD_SET_DISABLED(port, mask);
-}
-
-void pd_timer_disable_range(int port, enum pd_timer_range range)
-{
- int start, end;
- enum pd_task_timer timer;
-
- switch (range) {
- case PE_TIMER_RANGE:
- start = PE_TIMER_START;
- end = PE_TIMER_END;
- break;
- case PR_TIMER_RANGE:
- start = PR_TIMER_START;
- end = PR_TIMER_END;
- break;
- case TC_TIMER_RANGE:
- start = TC_TIMER_START;
- end = TC_TIMER_END;
- break;
- default:
- return;
- }
-
- for (timer = start; timer <= end; ++timer)
- pd_timer_disable(port, timer);
-}
-
-bool pd_timer_is_disabled(int port, enum pd_task_timer timer)
-{
- uint32_t mask = 1 << timer;
-
- return PD_CHK_DISABLED(port, mask);
-}
-
-bool pd_timer_is_expired(int port, enum pd_task_timer timer)
-{
- if (pd_timer_is_active(port, timer)) {
- if (get_time().val >= timer_expires[port][timer]) {
- pd_timer_inactive(port, timer);
- return true;
- }
- return false;
- }
- return pd_timer_is_inactive(port, timer);
-}
-
-void pd_timer_manage_expired(int port)
-{
- int timer;
-
- if (timer_active[port])
- for (timer = 0; timer < MAX_PD_TIMERS; ++timer)
- if (pd_timer_is_active(port, timer) &&
- pd_timer_is_expired(port, timer))
- pd_timer_inactive(port, timer);
-}
-
-int pd_timer_next_expiration(int port)
-{
- int timer;
- int ret_value = MAX_EXPIRE;
- uint64_t now = get_time().val;
-
- for (timer = 0; timer < MAX_PD_TIMERS; ++timer) {
- /* Only use active timers for the next expired value */
- if (pd_timer_is_active(port, timer)) {
- int delta;
- uint64_t t_value = timer_expires[port][timer];
-
- if (t_value <= now) {
- ret_value = EXPIRE_NOW;
- break;
- }
-
- delta = t_value - now;
- if (ret_value > delta)
- ret_value = delta;
- }
- }
-
- if (ret_value == MAX_EXPIRE)
- ret_value = NO_TIMEOUT;
-
- return ret_value;
-}
-
-#ifdef CONFIG_CMD_PD_TIMER
-void pd_timer_dump(int port)
-{
- int timer;
- uint64_t now = get_time().val;
-
- ccprints("Timers(%d): cur=%d max=%d",
- port, count[port], max_count[port]);
-
- for (timer = 0; timer < MAX_PD_TIMERS; ++timer) {
- if (pd_timer_is_disabled(port, timer)) {
- continue;
- } else if (pd_timer_is_active(port, timer)) {
- uint32_t delta = 0;
-
- if (now < timer_expires[port][timer])
- delta = timer_expires[port][timer] - now;
-
- ccprints("[%2d] Active: %s (%d%s)",
- timer, pd_timer_names[timer], (uint32_t)delta,
- tc_event_loop_is_paused(port)
- ? "-PAUSED"
- : "");
- } else {
- ccprints("[%2d] Inactive: %s",
- timer, pd_timer_names[timer]);
- }
- }
-}
-#endif /* CONFIG_CMD_PD_TIMER */