summaryrefslogtreecommitdiff
path: root/baseboard/honeybuns/baseboard.c
diff options
context:
space:
mode:
Diffstat (limited to 'baseboard/honeybuns/baseboard.c')
-rw-r--r--baseboard/honeybuns/baseboard.c489
1 files changed, 0 insertions, 489 deletions
diff --git a/baseboard/honeybuns/baseboard.c b/baseboard/honeybuns/baseboard.c
deleted file mode 100644
index df56697fbf..0000000000
--- a/baseboard/honeybuns/baseboard.c
+++ /dev/null
@@ -1,489 +0,0 @@
-/* Copyright 2020 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.
- */
-
-/* Honeybuns family-specific configuration */
-#include "console.h"
-#include "cros_board_info.h"
-#include "driver/mp4245.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "i2c.h"
-#include "usb_pd.h"
-#include "system.h"
-#include "task.h"
-#include "timer.h"
-#include "usbc_ppc.h"
-#include "driver/tcpm/tcpm.h"
-#include "util.h"
-
-#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
-
-#define POWER_BUTTON_SHORT_USEC (300 * MSEC)
-#define POWER_BUTTON_LONG_USEC (5000 * MSEC)
-#define POWER_BUTTON_DEBOUNCE_USEC (30)
-
-#define BUTTON_EVT_CHANGE BIT(0)
-#define BUTTON_EVT_INFO BIT(1)
-
-enum power {
- POWER_OFF,
- POWER_ON
-};
-
-enum button {
- BUTTON_RELEASE,
- BUTTON_PRESS,
- BUTTON_PRESS_POWER_ON,
- BUTTON_PRESS_SHORT,
- BUTTON_PRESS_LONG,
-};
-
-#define LED_ON_OFF_BIT BIT(0)
-#define LED_COLOR_BIT BIT(2)
-#define LED_FLASH_SEQ_LENGTH 8
-
-enum led_color {
- GREEN,
- YELLOW,
- OFF,
-};
-
-static enum power dock_state;
-#ifdef SECTION_IS_RW
-static int button_level;
-static int button_level_pending;
-static int dock_mf;
-static int led_count;
-#endif
-
-/******************************************************************************/
-
-__maybe_unused static void board_power_sequence(int enable)
-{
- int i;
-
- if (enable) {
- for(i = 0; i < board_power_seq_count; i++) {
- gpio_set_level(board_power_seq[i].signal,
- board_power_seq[i].level);
- CPRINTS("power seq: rail = %d", i);
- if (board_power_seq[i].delay_ms)
- msleep(board_power_seq[i].delay_ms);
- }
- } else {
- for(i = board_power_seq_count - 1; i >= 0; i--) {
- gpio_set_level(board_power_seq[i].signal,
- !board_power_seq[i].level);
- CPRINTS("sequence[%d]: level = %d", i,
- !board_power_seq[i].level);
- }
- }
-
- dock_state = enable;
- CPRINTS("board: Power rails %s", dock_state ? "on" : "off");
-}
-
-/******************************************************************************/
-/* I2C port map configuration */
-const struct i2c_port_t i2c_ports[] = {
- {"i2c1", I2C_PORT_I2C1, 400, GPIO_EC_I2C1_SCL, GPIO_EC_I2C1_SDA},
- {"i2c3", I2C_PORT_I2C3, 400, GPIO_EC_I2C3_SCL, GPIO_EC_I2C3_SDA},
-};
-const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
-
-#ifdef SECTION_IS_RW
-static void baseboard_set_led(enum led_color color)
-{
- /*
- * TODO(b/164157329): The power button feature should be connected to a
- * 2 color LED which is part of the button. Currently, the power button
- * LED is a single color LED which is controlled by on the of the power
- * rails. Using the status LED now to demonstrate the LED behavior
- * associated with a power button press.
- */
- CPRINTS("led: color = %d", color);
-
- /* Not all boards may have LEDs under EC control */
-#if defined(GPIO_PWR_BUTTON_RED) && defined(GPIO_PWR_BUTTON_GREEN)
- if (color == OFF) {
- gpio_set_level(GPIO_PWR_BUTTON_RED, 1);
- gpio_set_level(GPIO_PWR_BUTTON_GREEN, 1);
- } else if (color == GREEN) {
- gpio_set_level(GPIO_PWR_BUTTON_RED, 1);
- gpio_set_level(GPIO_PWR_BUTTON_GREEN, 0);
- } else if (color == YELLOW) {
- gpio_set_level(GPIO_PWR_BUTTON_RED, 0);
- gpio_set_level(GPIO_PWR_BUTTON_GREEN, 0);
- }
-#endif
-}
-
-static void baseboard_led_callback(void);
-DECLARE_DEFERRED(baseboard_led_callback);
-
-static void baseboard_led_callback(void)
-{
- /*
- * Flash LED on transition using a simple 3 bit counter. Bit 0 controls
- * LED on/off and bit 2 controls which color to set during the on phase.
- */
- int color = led_count & LED_COLOR_BIT ? dock_mf : dock_mf ^ 1;
-
- /*
- * TODO(b/164157329): This function implements a simple flashing
- * transition when the MF preference bit is changed via a long power
- * button press sequence. This might need to move to the board function
- * if not required/desired on all variants.
- */
-
- if (led_count & LED_ON_OFF_BIT)
- baseboard_set_led(color);
- else
- baseboard_set_led(OFF);
-
- /* Flash sequence is 8 steps */
- if (++led_count < LED_FLASH_SEQ_LENGTH)
- hook_call_deferred(&baseboard_led_callback_data, 150 * MSEC);
-}
-
-static void baseboard_change_mf_led(void)
-{
- led_count = 0;
- baseboard_led_callback();
-}
-
-void baseboard_set_mst_lane_control(int mf)
-{
- /*
- * The parameter mf reflects the desired lane control value. If the
- * current value does not match the desired, then the MST hub must first
- * be put into reset, so the MST hub will latch in the correct value
- * when it's taken out of reset.
- */
- if (mf != gpio_get_level(GPIO_MST_HUB_LANE_SWITCH)) {
- /* put MST into reset */
- gpio_set_level(GPIO_MST_RST_L, 0);
- msleep(1);
- gpio_set_level(GPIO_MST_HUB_LANE_SWITCH, mf);
- CPRINTS("MST: lane control = %s", mf ? "high" : "low");
- msleep(1);
- /* lane control is set, take MST out of reset */
- gpio_set_level(GPIO_MST_RST_L, 1);
- }
-}
-
-static void baseboard_enable_mp4245(void)
-{
- int mv;
- int ma;
-
- mp4245_set_voltage_out(5000);
- mp4245_votlage_out_enable(1);
- msleep(MP4245_VOUT_5V_DELAY_MS);
- mp3245_get_vbus(&mv, &ma);
- CPRINTS("mp4245: vout @ %d mV enabled", mv);
-}
-
-#endif /* SECTION_IS_RW */
-
-static void baseboard_init(void)
-{
-#ifdef SECTION_IS_RW
- uint32_t fw_config;
-#endif
-
- /* Turn on power rails */
- board_power_sequence(1);
- CPRINTS("board: Power rails enabled");
-
-#ifdef SECTION_IS_RW
- /* Force TC state machine to start in TC_ERROR_RECOVERY */
- system_clear_reset_flags(EC_RESET_FLAG_POWER_ON);
- /* Make certain SN5S330 PPC does full initialization */
- system_set_reset_flags(EC_RESET_FLAG_EFS);
-
- /*
- * Dock multi function (mf) preference is stored in bit 0 of fw_config
- * field of the CBI. If this value is programmed, then make sure the
- * MST_LANE_CONTROL gpio matches the mf bit.
- */
- if (!cbi_get_fw_config(&fw_config)) {
- dock_mf = CBI_FW_MF_PREFERENCE(fw_config);
- baseboard_set_mst_lane_control(dock_mf);
- } else {
- dock_mf = dock_get_mf_preference();
- cbi_set_fw_config(dock_mf);
- CPRINTS("cbi: setting default result = %s",
- cbi_get_fw_config(&fw_config) ? "pass" : "fail");
- }
-
-#ifdef GPIO_USBC_UF_ATTACHED_SRC
- /* Configure UF usbc ppc and check usbc state */
- baseboard_config_usbc_usb3_ppc();
-#endif /* GPIO_USBC_UF_ATTACHED_SRC */
-
- /* Enable power button interrupt */
- gpio_enable_interrupt(GPIO_PWR_BTN);
- /* Set dock mf preference LED */
- baseboard_set_led(dock_mf);
- /* Setup VBUS to default value */
- baseboard_enable_mp4245();
-
-#else
- /* Set up host port usbc to present Rd on CC lines */
- if(baseboard_usbc_init(USB_PD_PORT_HOST))
- CPRINTS("usbc: Failed to set up sink path");
- else
- CPRINTS("usbc: sink path configure success!");
-#endif /* SECTION_IS_RW */
-}
-/*
- * Power sequencing must run before any other chip init is attempted, so run
- * power sequencing as soon as I2C bus is initialized.
- */
-DECLARE_HOOK(HOOK_INIT, baseboard_init, HOOK_PRIO_INIT_I2C + 1);
-
-#ifdef SECTION_IS_RW
-static void baseboard_power_on(void)
-{
- int port_max = board_get_usb_pd_port_count();
- int port;
-
- CPRINTS("pwrbtn: power on: mf = %d", dock_mf);
- /* Adjust system flags to full PPC init occurs */
- system_clear_reset_flags(EC_RESET_FLAG_POWER_ON);
- system_set_reset_flags(EC_RESET_FLAG_EFS);
- /* Enable power rails and release reset signals */
- board_power_sequence(1);
- /* Set VBUS to 5V and enable output from mp4245 */
- baseboard_enable_mp4245();
- /* Set dock mf preference LED */
- baseboard_set_led(dock_mf);
- /*
- * Lane control (realtek MST) must be set prior to releasing MST
- * reset.
- */
- baseboard_set_mst_lane_control(dock_mf);
- /*
- * When the power to the PPC is turned off, then back on, the PPC will
- * default into dead battery mode. Dead battery resistors are disabled
- * as part of the full PPC intializaiton sequence. This is required to
- * force a detach event with port parter which can be attached as usbc
- * source when honeybuns power rails are off.
- */
- for (port = 0; port < port_max; port++) {
- ppc_init(port);
- msleep(1000);
- /* Inform TC state machine that it can resume */
- pd_set_suspend(port, 0);
- }
- /* Enable usbc interrupts */
- board_enable_usbc_interrupts();
-
-#ifdef GPIO_USBC_UF_ATTACHED_SRC
- baseboard_config_usbc_usb3_ppc();
-#endif
-}
-
-static void baseboard_power_off(void)
-{
- int port_max = board_get_usb_pd_port_count();
- int port;
-
- CPRINTS("pwrbtn: power off");
- /* Put ports in TC suspend state */
- for (port = 0; port < port_max; port++)
- pd_set_suspend(port, 1);
-
- /* Disable ucpd peripheral (prevents interrupts) */
- tcpm_release(USB_PD_PORT_HOST);
- /* Disable PPC/TCPC interrupts */
- board_disable_usbc_interrupts();
-
-#ifdef GPIO_USBC_UF_ATTACHED_SRC
- /* Disable PPC interrupts for PS8803 managed port */
- baseboard_usbc_usb3_enable_interrupts(0);
-#endif
- /* Set dock power button/MF preference LED */
- baseboard_set_led(OFF);
- /* Go into power off state */
- board_power_sequence(0);
-}
-
-static void baseboard_toggle_mf(void)
-{
- uint32_t fw_config;
-
- if (!cbi_get_fw_config(&fw_config)) {
- /* Update the user MF preference stored in CBI */
- fw_config ^= CBI_FW_MF_MASK;
- cbi_set_fw_config(fw_config);
- /* Update variable used to track user MF preference */
- dock_mf = CBI_FW_MF_PREFERENCE(fw_config);
- /* Flash led for visual indication of user MF change */
- baseboard_change_mf_led();
-
- /*
- * Suspend, then release host port to force new MF setting to
- * take effect.
- */
- pd_set_suspend(USB_PD_PORT_HOST, 1);
- msleep(250);
- pd_set_suspend(USB_PD_PORT_HOST, 0);
- }
-}
-
-/*
- * Main task entry point for UCPD task
- */
-void power_button_task(void *u)
-{
- int timer_us = POWER_BUTTON_DEBOUNCE_USEC * 4;
- enum button state = BUTTON_RELEASE;
- uint32_t evt;
-
- /*
- * Capture current button level in case it's being pressed when the dock
- * is powered on. Note timer_us is initialized for debounce time to
- * double check.
- */
- button_level = gpio_get_level(GPIO_PWR_BTN);
-
- while (1) {
- evt = task_wait_event(timer_us);
- timer_us = -1;
-
- if (evt == BUTTON_EVT_INFO) {
- /* Only used for console command for debug */
- CPRINTS("pwrbtn: pwr = %d, state = %d, level = %d",
- dock_state, state, button_level);
- continue;
- }
-
- switch (state) {
- case BUTTON_RELEASE:
- /*
- * Default wait state: Only need to check if the button
- * is pressed and start the short press timer.
- */
- if (evt & BUTTON_EVT_CHANGE && button_level ==
- BUTTON_PRESSED_LEVEL) {
- state = BUTTON_PRESS;
- timer_us = (POWER_BUTTON_SHORT_USEC -
- POWER_BUTTON_DEBOUNCE_USEC);
- }
- break;
- case BUTTON_PRESS:
- /*
- * Validate short press by ensuring that button is still
- * pressed after short press timer expires.
- */
- if (evt & BUTTON_EVT_CHANGE &&
- button_level == BUTTON_RELEASED_LEVEL) {
- state = BUTTON_RELEASE;
- } else {
- /* Start long press timer */
- timer_us = POWER_BUTTON_LONG_USEC -
- POWER_BUTTON_SHORT_USEC;
- /*
- * If dock is currently off, then change to the
- * power on state. If dock is already on, then
- * advance to short press state.
- */
- if (dock_state == POWER_OFF) {
- baseboard_power_on();
- state = BUTTON_PRESS_POWER_ON;
- } else {
- state = BUTTON_PRESS_SHORT;
- }
- }
- break;
- case BUTTON_PRESS_POWER_ON:
- /*
- * Short press recognized and dock was just powered
- * on. If button is no longer pressed, then just return
- * to the default state. Else, button is still pressed
- * after long press timer has expired.
- */
- if (evt & BUTTON_EVT_CHANGE &&
- button_level == BUTTON_RELEASED_LEVEL) {
- state = BUTTON_RELEASE;
- } else {
- state = BUTTON_PRESS_LONG;
- baseboard_toggle_mf();
- }
- break;
- case BUTTON_PRESS_SHORT:
- /*
- * Short press was recognized and dock power state was
- * already on. If button is now released, then turn dock
- * off.
- */
- if (evt & BUTTON_EVT_CHANGE &&
- button_level == BUTTON_RELEASED_LEVEL) {
- state = BUTTON_RELEASE;
- baseboard_power_off();
- } else {
- state = BUTTON_PRESS_LONG;
- baseboard_toggle_mf();
- }
- break;
- case BUTTON_PRESS_LONG:
- if (evt & BUTTON_EVT_CHANGE &&
- button_level == BUTTON_RELEASED_LEVEL) {
- state = BUTTON_RELEASE;
- }
- break;
- }
- }
-}
-
-static void baseboard_power_button_debounce(void)
-{
- int level = gpio_get_level(GPIO_PWR_BTN);
-
- /* Sanity check, level should be same after debounce interval */
- if (level != button_level_pending)
- return;
-
- button_level = level;
- task_set_event(TASK_ID_POWER_BUTTON, BUTTON_EVT_CHANGE);
-}
-DECLARE_DEFERRED(baseboard_power_button_debounce);
-
-void baseboard_power_button_evt(int level)
-{
- button_level_pending = level;
-
- hook_call_deferred(&baseboard_power_button_debounce_data,
- POWER_BUTTON_DEBOUNCE_USEC);
-}
-
-static int command_pwr_btn(int argc, char **argv)
-{
-
- if (argc == 1) {
- task_set_event(TASK_ID_POWER_BUTTON, BUTTON_EVT_INFO);
- return EC_SUCCESS;
- }
-
- if (!strcasecmp(argv[1], "on")) {
- baseboard_power_on();
- } else if (!strcasecmp(argv[1], "off")) {
- baseboard_power_off();
- } else if (!strcasecmp(argv[1], "mf")) {
- baseboard_toggle_mf();
- } else {
- return EC_ERROR_PARAM1;
- }
-
- return EC_SUCCESS;
-}
-DECLARE_CONSOLE_COMMAND(pwr_btn, command_pwr_btn,
- "<on|off|mf>",
- "Simulate Power Button Press");
-
-#endif
View Lorry Controller Status