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-rw-r--r--board/dibbi/board.c374
1 files changed, 374 insertions, 0 deletions
diff --git a/board/dibbi/board.c b/board/dibbi/board.c
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+++ b/board/dibbi/board.c
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+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Dibbi board-specific configuration */
+
+#include "adc_chip.h"
+#include "button.h"
+#include "charge_manager.h"
+#include "charge_state_v2.h"
+#include "charger.h"
+#include "driver/temp_sensor/thermistor.h"
+#include "driver/tcpm/it83xx_pd.h"
+#include "driver/usb_mux/it5205.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "intc.h"
+#include "power.h"
+#include "power_button.h"
+#include "pwm.h"
+#include "pwm_chip.h"
+#include "switch.h"
+#include "system.h"
+#include "tablet_mode.h"
+#include "task.h"
+#include "tcpm/tcpci.h"
+#include "temp_sensor.h"
+#include "uart.h"
+#include "usb_charge.h"
+#include "usb_mux.h"
+#include "usb_pd.h"
+#include "usb_pd_tcpm.h"
+
+#define CPRINTUSB(format, args...) cprints(CC_USBCHARGE, format, ##args)
+
+/* ADC channels */
+const struct adc_t adc_channels[] = {
+ [ADC_VSNS_PP3300_A] = { .name = "PP3300_A_PGOOD",
+ .factor_mul = ADC_MAX_MVOLT,
+ .factor_div = ADC_READ_MAX + 1,
+ .shift = 0,
+ .channel = CHIP_ADC_CH0 },
+ [ADC_TEMP_SENSOR_1] = { .name = "TEMP_SENSOR1",
+ .factor_mul = ADC_MAX_MVOLT,
+ .factor_div = ADC_READ_MAX + 1,
+ .shift = 0,
+ .channel = CHIP_ADC_CH2 },
+ [ADC_TEMP_SENSOR_2] = { .name = "TEMP_SENSOR2",
+ .factor_mul = ADC_MAX_MVOLT,
+ .factor_div = ADC_READ_MAX + 1,
+ .shift = 0,
+ .channel = CHIP_ADC_CH3 },
+ [ADC_PPVAR_PWR_IN_IMON] = { .name = "ADC_PPVAR_PWR_IN_IMON",
+ .factor_mul = ADC_MAX_MVOLT,
+ .factor_div = ADC_READ_MAX + 1,
+ .shift = 0,
+ .channel = CHIP_ADC_CH15 },
+ [ADC_SNS_PPVAR_PWR_IN] = { .name = "ADC_SNS_PPVAR_PWR_IN",
+ .factor_mul = ADC_MAX_MVOLT,
+ .factor_div = ADC_READ_MAX + 1,
+ .shift = 0,
+ .channel = CHIP_ADC_CH16 },
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+/* TCPCs */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+ {
+ .bus_type = EC_BUS_TYPE_EMBEDDED,
+ .drv = &it83xx_tcpm_drv,
+ },
+};
+
+/* USB Muxes */
+const struct usb_mux_chain usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+ {
+ .mux =
+ &(const struct usb_mux){
+ .usb_port = 0,
+ .i2c_port = I2C_PORT_USB_C0,
+ .i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
+ .driver = &it5205_usb_mux_driver,
+ },
+ },
+};
+
+/* USB-A ports */
+const int usb_port_enable[USB_PORT_COUNT] = {
+ GPIO_EN_USB_A0_VBUS,
+ GPIO_EN_USB_A1_VBUS,
+ GPIO_EN_USB_A2_VBUS,
+};
+
+/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
+const struct pwm_t pwm_channels[] = {
+ [PWM_CH_LED_RED] = {
+ .channel = 1,
+ .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW,
+ .freq_hz = 2400,
+ },
+
+ [PWM_CH_LED_GREEN] = {
+ .channel = 2,
+ .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW,
+ .freq_hz = 2400,
+ },
+
+ [PWM_CH_LED_BLUE] = {
+ .channel = 3,
+ .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW,
+ .freq_hz = 2400,
+ }
+
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+/* Thermistors */
+const struct temp_sensor_t temp_sensors[] = {
+ [TEMP_SENSOR_1] = { .name = "Memory",
+ .type = TEMP_SENSOR_TYPE_BOARD,
+ .read = get_temp_3v3_51k1_47k_4050b,
+ .idx = ADC_TEMP_SENSOR_1 },
+ [TEMP_SENSOR_2] = { .name = "Ambient",
+ .type = TEMP_SENSOR_TYPE_BOARD,
+ .read = get_temp_3v3_51k1_47k_4050b,
+ .idx = ADC_TEMP_SENSOR_2 },
+};
+BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
+
+static void c0_ccsbu_ovp_interrupt(enum gpio_signal s)
+{
+ cprints(CC_USBPD, "C0: CC OVP, SBU OVP, or thermal event");
+ pd_handle_cc_overvoltage(0);
+}
+
+void board_init(void)
+{
+ int on;
+
+ gpio_enable_interrupt(GPIO_USB_C0_CCSBU_OVP_ODL);
+ gpio_enable_interrupt(GPIO_BJ_ADP_PRESENT_L);
+ gpio_enable_interrupt(GPIO_USBC_ADP_PRESENT_L);
+
+ /* Turn on 5V if the system is on, otherwise turn it off */
+ on = chipset_in_state(CHIPSET_STATE_ON | CHIPSET_STATE_ANY_SUSPEND |
+ CHIPSET_STATE_SOFT_OFF);
+ board_power_5v_enable(on);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+void board_reset_pd_mcu(void)
+{
+ /*
+ * Nothing to do. TCPC C0 is internal.
+ */
+}
+
+__override void board_power_5v_enable(int enable)
+{
+ /*
+ * Mainboard 5V regulator activated by GPIO.
+ * USB-A ports are activated by usb_port_power_dumb.
+ */
+ gpio_set_level(GPIO_EN_PP5000, !!enable);
+}
+
+void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma,
+ int charge_mv)
+{
+ int insufficient_power =
+ (charge_ma * charge_mv) <
+ (CONFIG_CHARGER_MIN_POWER_MW_FOR_POWER_ON * 1000);
+ /* TODO(b/259467280) blink LED on error */
+ (void)insufficient_power;
+}
+
+int board_vbus_source_enabled(int port)
+{
+ if (port != CHARGE_PORT_TYPEC0)
+ return 0;
+ return gpio_get_level(GPIO_EN_USB_C0_VBUS);
+}
+
+/* Vconn control for integrated ITE TCPC */
+void board_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled)
+{
+ /* Vconn control is only for port 0 */
+ if (port)
+ return;
+
+ if (cc_pin == USBPD_CC_PIN_1)
+ gpio_set_level(GPIO_EN_USB_C0_CC1_VCONN, !!enabled);
+ else
+ gpio_set_level(GPIO_EN_USB_C0_CC2_VCONN, !!enabled);
+}
+
+__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp)
+{
+ int ilim3A;
+
+ if (port < 0 || port > CONFIG_USB_PD_PORT_MAX_COUNT)
+ return;
+
+ /* Switch between 1.5A and 3A ILIM values */
+ ilim3A = (rp == TYPEC_RP_3A0);
+ gpio_set_level(GPIO_USB_C0_VBUS_ILIM, ilim3A);
+}
+
+/******************************************************************************/
+/*
+ * Since dibbi has no battery, it must source all of its power from either
+ * USB-C or the barrel jack (preferred). Fizz operates in continuous safe
+ * mode (charge_manager_leave_safe_mode() will never be called), which
+ * modifies port selection as follows:
+ *
+ * - Dual-role / dedicated capability of the port partner is ignored.
+ * - Charge ceiling on PD voltage transition is ignored.
+ * - CHARGE_PORT_NONE will never be selected.
+ */
+
+/* List of BJ adapters */
+enum bj_adapter {
+ BJ_NONE,
+ BJ_65W_19V,
+};
+
+/* Barrel-jack power adapter ratings. */
+static const struct charge_port_info bj_adapters[] = {
+ [BJ_NONE] = { .current = 0, .voltage = 0 },
+ [BJ_65W_19V] = { .current = 3420, .voltage = 19000 },
+};
+#define BJ_ADP_RATING_DEFAULT BJ_65W_19V /* BJ power ratings default */
+#define ADP_DEBOUNCE_MS 1000 /* Debounce time for BJ plug/unplug */
+
+/* Debounced connection state of the barrel jack */
+static int8_t bj_adp_connected = -1;
+static void adp_connect_deferred(void)
+{
+ const struct charge_port_info *pi;
+ int connected = !gpio_get_level(GPIO_BJ_ADP_PRESENT_L);
+
+ /* Debounce */
+ if (connected == bj_adp_connected)
+ return;
+
+ if (connected) {
+ pi = &bj_adapters[BJ_ADP_RATING_DEFAULT];
+ } else {
+ /* No barrel-jack, zero out this power supply */
+ pi = &bj_adapters[BJ_NONE];
+ }
+ /* This will result in a call to board_set_active_charge_port */
+ charge_manager_update_charge(CHARGE_SUPPLIER_DEDICATED,
+ DEDICATED_CHARGE_PORT, pi);
+ bj_adp_connected = connected;
+}
+DECLARE_DEFERRED(adp_connect_deferred);
+
+/* IRQ for BJ plug/unplug. It shouldn't be called if BJ is the power source. */
+void adp_connect_interrupt(enum gpio_signal signal)
+{
+ hook_call_deferred(&adp_connect_deferred_data, ADP_DEBOUNCE_MS * MSEC);
+}
+
+/* IRQ for USB-C plug/unplug. */
+void usbc_connect_interrupt(enum gpio_signal signal)
+{
+ task_wake(TASK_ID_PD_C0);
+}
+
+int board_set_active_charge_port(int port)
+{
+ const int active_port = charge_manager_get_active_charge_port();
+
+ CPRINTUSB("Requested charge port change to %d", port);
+
+ if (port < 0 || CHARGE_PORT_COUNT <= port)
+ return EC_ERROR_INVAL;
+
+ if (port == active_port)
+ return EC_SUCCESS;
+
+ /* Don't sink from a source port */
+ if (board_vbus_source_enabled(port))
+ return EC_ERROR_INVAL;
+
+ if (!chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
+ int bj_requested;
+
+ if (charge_manager_get_active_charge_port() != CHARGE_PORT_NONE)
+ /* Change is only permitted while the system is off */
+ return EC_ERROR_INVAL;
+
+ /*
+ * Current setting is no charge port but the AP is on, so the
+ * charge manager is out of sync (probably because we're
+ * reinitializing after sysjump). Reject requests that aren't
+ * in sync with our outputs.
+ */
+ bj_requested = port == CHARGE_PORT_BARRELJACK;
+ if (bj_adp_connected != bj_requested)
+ return EC_ERROR_INVAL;
+ }
+
+ CPRINTUSB("New charger p%d", port);
+
+ switch (port) {
+ case CHARGE_PORT_TYPEC0:
+ gpio_set_level(GPIO_EN_PPVAR_USBC_ADP_L, 0);
+ gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 1);
+ gpio_enable_interrupt(GPIO_BJ_ADP_PRESENT_L);
+ break;
+ case CHARGE_PORT_BARRELJACK:
+ /* Make sure BJ adapter is sourcing power */
+ if (gpio_get_level(GPIO_BJ_ADP_PRESENT_L))
+ return EC_ERROR_INVAL;
+ gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 0);
+ gpio_set_level(GPIO_EN_PPVAR_USBC_ADP_L, 1);
+ gpio_disable_interrupt(GPIO_BJ_ADP_PRESENT_L);
+ break;
+ default:
+ return EC_ERROR_INVAL;
+ }
+
+ return EC_SUCCESS;
+}
+
+static void board_charge_manager_init(void)
+{
+ enum charge_port port;
+
+ /*
+ * Initialize all charge suppliers to 0. The charge manager waits until
+ * all ports have reported in before doing anything.
+ */
+ for (int i = 0; i < CHARGE_PORT_COUNT; i++) {
+ for (int j = 0; j < CHARGE_SUPPLIER_COUNT; j++)
+ charge_manager_update_charge(j, i, NULL);
+ }
+
+ port = gpio_get_level(GPIO_BJ_ADP_PRESENT_L) ? CHARGE_PORT_TYPEC0 :
+ CHARGE_PORT_BARRELJACK;
+ CPRINTUSB("Power source is p%d (%s)", port,
+ port == CHARGE_PORT_TYPEC0 ? "USB-C" : "BJ");
+
+ /* Initialize the power source supplier */
+ switch (port) {
+ case CHARGE_PORT_TYPEC0:
+ typec_set_input_current_limit(port, 3000, 5000);
+ break;
+ case CHARGE_PORT_BARRELJACK:
+ charge_manager_update_charge(
+ CHARGE_SUPPLIER_DEDICATED, DEDICATED_CHARGE_PORT,
+ &bj_adapters[BJ_ADP_RATING_DEFAULT]);
+ break;
+ }
+
+ /* Report charge state from the barrel jack. */
+ adp_connect_deferred();
+}
+DECLARE_HOOK(HOOK_INIT, board_charge_manager_init,
+ HOOK_PRIO_INIT_CHARGE_MANAGER + 1);
+
+__override int extpower_is_present(void)
+{
+ /*
+ * There's no battery, so running this method implies we have power.
+ */
+ return 1;
+}
+
+/* Must come after other header files and interrupt handler declarations */
+#include "gpio_list.h"
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