summaryrefslogtreecommitdiff
path: root/baseboard/kukui/base_detect_kukui.c
diff options
context:
space:
mode:
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 /baseboard/kukui/base_detect_kukui.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14526.57.B-ish.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 'baseboard/kukui/base_detect_kukui.c')
-rw-r--r--baseboard/kukui/base_detect_kukui.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/baseboard/kukui/base_detect_kukui.c b/baseboard/kukui/base_detect_kukui.c
deleted file mode 100644
index 68542b4fb6..0000000000
--- a/baseboard/kukui/base_detect_kukui.c
+++ /dev/null
@@ -1,231 +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 "adc.h"
-#include "base_state.h"
-#include "board.h"
-#include "charge_manager.h"
-#include "console.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "timer.h"
-#include "usb_pd.h"
-#include "util.h"
-
-#define CPRINTS(format, args...) cprints(CC_USB, format, ## args)
-
-/* Krane base detection code */
-
-/* Base detection and debouncing */
-#define BASE_DETECT_DEBOUNCE_US (20 * MSEC)
-
-/*
- * If the base status is unclear (i.e. not within expected ranges, read
- * the ADC value again every 500ms.
- */
-#define BASE_DETECT_RETRY_US (500 * MSEC)
-
-enum kukui_pogo_device_type {
- DEVICE_TYPE_ERROR = -2,
- DEVICE_TYPE_UNKNOWN = -1,
- DEVICE_TYPE_DETACHED = 0,
-#ifdef VARIANT_KUKUI_POGO_DOCK
- DEVICE_TYPE_DOCK,
-#endif
- DEVICE_TYPE_KEYBOARD,
- DEVICE_TYPE_COUNT,
-};
-
-struct {
- int mv_low, mv_high;
-} static const pogo_detect_table[] = {
- [DEVICE_TYPE_DETACHED] = {2700, 3500}, /* 10K, NC, around 3.3V */
-#ifdef VARIANT_KUKUI_POGO_DOCK
- [DEVICE_TYPE_DOCK] = {141, 173}, /* 10K, 0.5K ohm */
-#endif
- [DEVICE_TYPE_KEYBOARD] = {270, 400}, /* 10K, 1K ohm */
-};
-BUILD_ASSERT(ARRAY_SIZE(pogo_detect_table) == DEVICE_TYPE_COUNT);
-
-static uint64_t base_detect_debounce_time;
-static enum kukui_pogo_device_type pogo_type;
-
-int kukui_pogo_extpower_present(void)
-{
-#ifdef VARIANT_KUKUI_POGO_DOCK
- return pogo_type == DEVICE_TYPE_DOCK &&
- gpio_get_level(GPIO_POGO_VBUS_PRESENT);
-#else
- return 0;
-#endif
-}
-
-static enum kukui_pogo_device_type get_device_type(int mv)
-{
- int i;
-
- if (mv == ADC_READ_ERROR)
- return DEVICE_TYPE_ERROR;
-
- for (i = 0; i < DEVICE_TYPE_COUNT; i++) {
- if (pogo_detect_table[i].mv_low <= mv &&
- mv <= pogo_detect_table[i].mv_high)
- return i;
- }
-
- return DEVICE_TYPE_UNKNOWN;
-}
-
-static void enable_charge(int enable)
-{
-#ifdef VARIANT_KUKUI_POGO_DOCK
- if (enable) {
- struct charge_port_info info = {
- .voltage = 5000, .current = 1500};
- /*
- * Set supplier type to PD to have same priority as type c
- * port.
- */
- charge_manager_update_charge(
- CHARGE_SUPPLIER_DEDICATED, CHARGE_PORT_POGO, &info);
- } else {
- charge_manager_update_charge(
- CHARGE_SUPPLIER_DEDICATED, CHARGE_PORT_POGO, NULL);
- }
- pd_send_host_event(PD_EVENT_POWER_CHANGE);
-#endif
-}
-
-static void enable_power_supply(int enable)
-{
- gpio_set_level(GPIO_EN_PP3300_POGO, enable);
-}
-
-static void base_detect_deferred(void);
-DECLARE_DEFERRED(base_detect_deferred);
-
-static void base_set_device_type(enum kukui_pogo_device_type device_type)
-{
- switch (device_type) {
- case DEVICE_TYPE_ERROR:
- case DEVICE_TYPE_UNKNOWN:
- hook_call_deferred(&base_detect_deferred_data,
- BASE_DETECT_RETRY_US);
- break;
-
- case DEVICE_TYPE_DETACHED:
- enable_power_supply(0);
- enable_charge(0);
- base_set_state(0);
- break;
-
-#ifdef VARIANT_KUKUI_POGO_DOCK
- case DEVICE_TYPE_DOCK:
- enable_power_supply(0);
- enable_charge(1);
- base_set_state(1);
- break;
-#endif
-
- case DEVICE_TYPE_KEYBOARD:
- enable_charge(0);
- enable_power_supply(1);
- base_set_state(1);
- break;
-
- case DEVICE_TYPE_COUNT:
- /* should not happen */
- break;
- }
-}
-
-static void base_detect_deferred(void)
-{
- uint64_t time_now = get_time().val;
- int mv;
-
- if (base_detect_debounce_time > time_now) {
- hook_call_deferred(&base_detect_deferred_data,
- base_detect_debounce_time - time_now);
- return;
- }
-
- /*
- * Disable interrupt first to prevent it triggered by value
- * changed from 1 to disabled state(=0).
- */
- gpio_disable_interrupt(GPIO_POGO_ADC_INT_L);
- gpio_set_flags(GPIO_POGO_ADC_INT_L, GPIO_ANALOG);
- mv = adc_read_channel(ADC_POGO_ADC_INT_L);
- /* restore the pin function */
- gpio_set_flags(GPIO_POGO_ADC_INT_L, GPIO_INT_BOTH);
- gpio_enable_interrupt(GPIO_POGO_ADC_INT_L);
-
- pogo_type = get_device_type(mv);
- CPRINTS("POGO: adc=%d, type=%d", mv, pogo_type);
-
- base_set_device_type(pogo_type);
-}
-
-void pogo_adc_interrupt(enum gpio_signal signal)
-{
- uint64_t time_now = get_time().val;
-
- if (base_detect_debounce_time <= time_now) {
- hook_call_deferred(&base_detect_deferred_data,
- BASE_DETECT_DEBOUNCE_US);
- }
-
- base_detect_debounce_time = time_now + BASE_DETECT_DEBOUNCE_US;
-}
-
-static void pogo_chipset_init(void)
-{
- /* Enable pogo interrupt */
- gpio_enable_interrupt(GPIO_POGO_ADC_INT_L);
-
- hook_call_deferred(&base_detect_deferred_data, 0);
-}
-DECLARE_HOOK(HOOK_INIT, pogo_chipset_init, HOOK_PRIO_DEFAULT);
-
-/* Called on AP S3 -> S5 transition */
-static void pogo_chipset_shutdown(void)
-{
- /* Disable pogo interrupt */
- gpio_disable_interrupt(GPIO_POGO_ADC_INT_L);
-
- enable_power_supply(0);
-}
-DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, pogo_chipset_shutdown, HOOK_PRIO_DEFAULT);
-
-void base_force_state(enum ec_set_base_state_cmd state)
-{
- if (state >= EC_SET_BASE_STATE_RESET) {
- CPRINTS("BD forced reset");
- pogo_chipset_init();
- return;
- }
-
- gpio_disable_interrupt(GPIO_POGO_ADC_INT_L);
- pogo_type = (state == 1 ? DEVICE_TYPE_KEYBOARD : DEVICE_TYPE_DETACHED);
- base_set_device_type(state == EC_SET_BASE_STATE_ATTACH
- ? DEVICE_TYPE_KEYBOARD
- : DEVICE_TYPE_DETACHED);
- CPRINTS("BD forced %sconnected", state == EC_SET_BASE_STATE_ATTACH ?
- "" : "dis");
-}
-
-#ifdef VARIANT_KUKUI_POGO_DOCK
-static void board_pogo_charge_init(void)
-{
- int i;
-
- /* Initialize all charge suppliers to 0 */
- for (i = 0; i < CHARGE_SUPPLIER_COUNT; i++)
- charge_manager_update_charge(i, CHARGE_PORT_POGO, NULL);
-}
-DECLARE_HOOK(HOOK_INIT, board_pogo_charge_init,
- HOOK_PRIO_CHARGE_MANAGER_INIT + 1);
-#endif