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OpenCellular/board/fizz/board.c
Daisuke Nojiri 26b4617c43 charge_manager: Add EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT 
Usually, the max current and supply voltage of dedicated chargers
are not known to the EC.

This patch adds EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT, which
allows the host to change the max current and supply voltage of the
dedicated charge port.

BUG=b:64442692
BRANCH=none
TEST=make runtests && buildall. Boot Fizz and let coreboot set
the adapter current and voltage.

Change-Id: I29b3f5762f8b316ca363c23e230530cdf4ca207a
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/769152
2017-11-28 10:22:27 -08:00

597 lines
16 KiB
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/* Copyright 2017 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.
*/
/* Fizz board-specific configuration */
#include "adc.h"
#include "adc_chip.h"
#include "als.h"
#include "battery.h"
#include "bd99992gw.h"
#include "board_config.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charger.h"
#include "chipset.h"
#include "console.h"
#include "driver/pmic_tps650x30.h"
#include "driver/temp_sensor/tmp432.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "driver/tcpm/tcpm.h"
#include "espi.h"
#include "extpower.h"
#include "espi.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "math_util.h"
#include "pi3usb9281.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "temp_sensor.h"
#include "timer.h"
#include "uart.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"
#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
static void tcpc_alert_event(enum gpio_signal signal)
{
if (!gpio_get_level(GPIO_USB_C0_PD_RST_ODL))
return;
#ifdef HAS_TASK_PDCMD
/* Exchange status with TCPCs */
host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
#endif
}
#define ADP_DEBOUNCE_MS 1000 /* Debounce time for BJ plug/unplug */
/*
* ADP_IN pin state. It's initialized to 1 (=unplugged) because the IRQ won't
* be triggered if BJ is the power source.
*/
static int adp_in_state = 1;
static void adp_in_deferred(void);
DECLARE_DEFERRED(adp_in_deferred);
static void adp_in_deferred(void)
{
struct charge_port_info pi = { 0 };
int level = gpio_get_level(GPIO_ADP_IN_L);
/* Debounce */
if (level == adp_in_state)
return;
if (!level) {
/* BJ is inserted but the voltage isn't effective because PU3
* is still disabled. */
pi.voltage = 19000;
if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
/* If type-c voltage is higher than BJ voltage, PU3 will
* shut down due to reverse current protection. So, we
* need to lower the voltage first. */
if (charge_manager_get_charger_voltage() > pi.voltage) {
pd_set_external_voltage_limit(
CHARGE_PORT_TYPEC0, pi.voltage);
hook_call_deferred(&adp_in_deferred_data,
ADP_DEBOUNCE_MS * MSEC);
return;
}
if (gpio_get_level(GPIO_POWER_RATE))
pi.current = 4620;
else
pi.current = 3330;
}
}
charge_manager_update_charge(CHARGE_SUPPLIER_DEDICATED,
DEDICATED_CHARGE_PORT, &pi);
/*
* Explicitly notifies the host that BJ is plugged or unplugged
* (when running on a type-c adapter).
*/
pd_send_host_event(PD_EVENT_POWER_CHANGE);
adp_in_state = level;
}
/* IRQ for BJ plug/unplug. It shouldn't be called if BJ is the power source. */
void adp_in(enum gpio_signal signal)
{
if (adp_in_state == gpio_get_level(GPIO_ADP_IN_L))
return;
hook_call_deferred(&adp_in_deferred_data, ADP_DEBOUNCE_MS * MSEC);
}
void vbus0_evt(enum gpio_signal signal)
{
task_wake(TASK_ID_PD_C0);
}
#include "gpio_list.h"
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_PCH_SLP_S0_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S0_DEASSERTED"},
#ifdef CONFIG_ESPI_VW_SIGNALS
{VW_SLP_S3_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
{VW_SLP_S4_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
#else
{GPIO_PCH_SLP_S3_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
{GPIO_PCH_SLP_S4_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
#endif
{GPIO_PCH_SLP_SUS_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_SUS_DEASSERTED"},
{GPIO_RSMRST_L_PGOOD, POWER_SIGNAL_ACTIVE_HIGH, "RSMRST_L_PGOOD"},
{GPIO_PMIC_DPWROK, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_DPWROK"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* Hibernate wake configuration */
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
/* ADC channels */
const struct adc_t adc_channels[] = {
/* Vbus sensing (1/10 voltage divider). */
[ADC_VBUS] = {"VBUS", NPCX_ADC_CH2, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0},
/*
* Adapter current output or battery charging/discharging current (uV)
* 18x amplification on charger side.
*/
[ADC_AMON_BMON] = {"AMON_BMON", NPCX_ADC_CH1, ADC_MAX_VOLT*1000/18,
ADC_READ_MAX+1, 0},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/******************************************************************************/
/* Physical fans. These are logically separate from pwm_channels. */
const struct fan_t fans[] = {
[FAN_CH_0] = {
.flags = FAN_USE_RPM_MODE,
.rpm_min = 2800,
.rpm_start = 2800,
.rpm_max = 5600,
.ch = MFT_CH_0, /* Use MFT id to control fan */
.pgood_gpio = -1,
.enable_gpio = GPIO_FAN_PWR_EN,
},
};
BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT);
/******************************************************************************/
/* MFT channels. These are logically separate from pwm_channels. */
const struct mft_t mft_channels[] = {
[MFT_CH_0] = {NPCX_MFT_MODULE_2, TCKC_LFCLK, PWM_CH_FAN},
};
BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);
/* I2C port map */
const struct i2c_port_t i2c_ports[] = {
{"tcpc", NPCX_I2C_PORT0_0, 400, GPIO_I2C0_0_SCL, GPIO_I2C0_0_SDA},
{"eeprom", NPCX_I2C_PORT0_1, 400, GPIO_I2C0_1_SCL, GPIO_I2C0_1_SDA},
{"charger", NPCX_I2C_PORT1, 100, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"pmic", NPCX_I2C_PORT2, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"thermal", NPCX_I2C_PORT3, 400, GPIO_I2C3_SCL, GPIO_I2C3_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/* TCPC mux configuration */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{NPCX_I2C_PORT0_0, I2C_ADDR_TCPC0, &ps8xxx_tcpm_drv,
TCPC_ALERT_ACTIVE_LOW},
};
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.port_addr = 0,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
}
};
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_USB1_ENABLE,
GPIO_USB2_ENABLE,
GPIO_USB3_ENABLE,
GPIO_USB4_ENABLE,
GPIO_USB5_ENABLE,
};
void board_reset_pd_mcu(void)
{
gpio_set_level(GPIO_USB_C0_PD_RST_ODL, 0);
msleep(1);
gpio_set_level(GPIO_USB_C0_PD_RST_ODL, 1);
}
void board_tcpc_init(void)
{
int port, reg;
/* Only reset TCPC if not sysjump */
if (!system_jumped_to_this_image()) {
/* Power on PS8751 */
gpio_set_level(GPIO_PP3300_USB_PD, 1);
/* TODO(crosbug.com/p/61098): How long do we need to wait? */
msleep(10);
board_reset_pd_mcu();
}
/*
* Wake up PS8751. If PS8751 remains in low power mode after sysjump,
* TCPM_INIT will fail due to not able to access PS8751.
* Note PS8751 A3 will wake on any I2C access.
*/
i2c_read8(I2C_PORT_TCPC0, I2C_ADDR_TCPC0, 0xA0, &reg);
/* Enable TCPC interrupts */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
/*
* Initialize HPD to low; after sysjump SOC needs to see
* HPD pulse to enable video path
*/
for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) {
const struct usb_mux *mux = &usb_muxes[port];
mux->hpd_update(port, 0, 0);
}
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) {
if (gpio_get_level(GPIO_USB_C0_PD_RST_ODL))
status |= PD_STATUS_TCPC_ALERT_0;
}
return status;
}
/*
* Temperature sensors data; must be in same order as enum temp_sensor_id.
* Sensor index and name must match those present in coreboot:
* src/mainboard/google/${board}/acpi/dptf.asl
*/
const struct temp_sensor_t temp_sensors[] = {
{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_LOCAL, 4},
{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE1, 4},
{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE2, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/*
* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
* same order as enum temp_sensor_id. To always ignore any temp, use 0.
*/
struct ec_thermal_config thermal_params[] = {
/* {Twarn, Thigh, Thalt}, <on>
* {Twarn, Thigh, X }, <off>
* fan_off, fan_max
*/
{{0, C_TO_K(87), C_TO_K(89)}, {0, C_TO_K(86), 0},
C_TO_K(44), C_TO_K(81)},/* TMP432_Internal */
{{0, 0, 0}, {0, 0, 0}, 0, 0}, /* TMP432_Sensor_1 */
{{0, 0, 0}, {0, 0, 0}, 0, 0}, /* TMP432_Sensor_2 */
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
/* Initialize PMIC */
#define I2C_PMIC_READ(reg, data) \
i2c_read8(I2C_PORT_PMIC, TPS650X30_I2C_ADDR1, (reg), (data))
#define I2C_PMIC_WRITE(reg, data) \
i2c_write8(I2C_PORT_PMIC, TPS650X30_I2C_ADDR1, (reg), (data))
static void board_pmic_init(void)
{
int err;
int error_count = 0;
static uint8_t pmic_initialized = 0;
if (pmic_initialized)
return;
/* Read vendor ID */
while (1) {
int data;
err = I2C_PMIC_READ(TPS650X30_REG_VENDORID, &data);
if (!err && data == TPS650X30_VENDOR_ID)
break;
else if (error_count > 5)
goto pmic_error;
error_count++;
}
/*
* VCCIOCNT register setting
* [6] : CSDECAYEN
* otherbits: default
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_VCCIOCNT, 0x4A);
if (err)
goto pmic_error;
/*
* VRMODECTRL:
* [4] : VCCIOLPM clear
* otherbits: default
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_VRMODECTRL, 0x2F);
if (err)
goto pmic_error;
/*
* PGMASK1 : Exclude VCCIO from Power Good Tree
* [7] : MVCCIOPG clear
* otherbits: default
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_PGMASK1, 0x80);
if (err)
goto pmic_error;
/*
* PWFAULT_MASK1 Register settings
* [7] : 1b V4 Power Fault Masked
* [4] : 1b V7 Power Fault Masked
* [2] : 1b V9 Power Fault Masked
* [0] : 1b V13 Power Fault Masked
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_PWFAULT_MASK1, 0x95);
if (err)
goto pmic_error;
/*
* Discharge control 4 register configuration
* [7:6] : 00b Reserved
* [5:4] : 01b V3.3S discharge resistance (V6S), 100 Ohm
* [3:2] : 01b V18S discharge resistance (V8S), 100 Ohm
* [1:0] : 01b V100S discharge resistance (V11S), 100 Ohm
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT4, 0x15);
if (err)
goto pmic_error;
/*
* Discharge control 3 register configuration
* [7:6] : 01b V1.8U_2.5U discharge resistance (V9), 100 Ohm
* [5:4] : 01b V1.2U discharge resistance (V10), 100 Ohm
* [3:2] : 01b V100A discharge resistance (V11), 100 Ohm
* [1:0] : 01b V085A discharge resistance (V12), 100 Ohm
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT3, 0x55);
if (err)
goto pmic_error;
/*
* Discharge control 2 register configuration
* [7:6] : 01b V5ADS3 discharge resistance (V5), 100 Ohm
* [5:4] : 01b V33A_DSW discharge resistance (V6), 100 Ohm
* [3:2] : 01b V33PCH discharge resistance (V7), 100 Ohm
* [1:0] : 01b V18A discharge resistance (V8), 100 Ohm
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT2, 0x55);
if (err)
goto pmic_error;
/*
* Discharge control 1 register configuration
* [7:2] : 00b Reserved
* [1:0] : 01b VCCIO discharge resistance (V4), 100 Ohm
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_DISCHCNT1, 0x01);
if (err)
goto pmic_error;
/*
* Increase Voltage
* [7:0] : 0x2a default
* [5:4] : 10b default
* [5:4] : 01b 5.1V (0x1a)
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_V5ADS3CNT, 0x1a);
if (err)
goto pmic_error;
/*
* PBCONFIG Register configuration
* [7] : 1b Power button debounce, 0ms (no debounce)
* [6] : 0b Power button reset timer logic, no action (default)
* [5:0] : 011111b Force an Emergency reset time, 31s (default)
*/
err = I2C_PMIC_WRITE(TPS650X30_REG_PBCONFIG, 0x9F);
if (err)
goto pmic_error;
CPRINTS("PMIC init done");
pmic_initialized = 1;
return;
pmic_error:
CPRINTS("PMIC init failed");
}
static void chipset_pre_init(void)
{
board_pmic_init();
}
DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, chipset_pre_init, HOOK_PRIO_DEFAULT);
/**
* Notify the AC presence GPIO to the PCH.
*/
static void board_extpower(void)
{
gpio_set_level(GPIO_PCH_ACPRESENT, extpower_is_present());
}
DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);
/* Initialize board. */
static void board_init(void)
{
/* Provide AC status to the PCH */
board_extpower();
gpio_enable_interrupt(GPIO_USB_C0_VBUS_WAKE_L);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
/* Turn on/off power shortage alert. Performs the same check as
* system_can_boot_ap(). It's repeated here because charge_manager
* hasn't updated charge_current/voltage when board_set_charge_limit
* is called. */
led_alert(charge_ma * charge_mv <
CONFIG_CHARGER_LIMIT_POWER_THRESH_CHG_MW * 1000);
/*
* We have two FETs connected to two registers: PR257 & PR258.
* These control thresholds of the over current monitoring system.
*
* PR257, PR258
* For 4.62A (90W BJ adapter), on, off
* For 3.33A (65W BJ adapter), off, on
* For 3.00A (Type-C adapter), off, off
*
* The over current monitoring system doesn't support less than 3A
* (e.g. 2.25A, 2.00A). These current most likely won't be enough to
* power the system. However, if they're needed, EC can monitor
* PMON_PSYS and trigger H_PROCHOT by itself.
*/
if (charge_ma >= 4620) {
gpio_set_level(GPIO_U42_P, 1);
gpio_set_level(GPIO_U22_C, 0);
} else if (charge_ma >= 3330) {
gpio_set_level(GPIO_U42_P, 0);
gpio_set_level(GPIO_U22_C, 1);
} else if (charge_ma >= 3000) {
gpio_set_level(GPIO_U42_P, 0);
gpio_set_level(GPIO_U22_C, 0);
} else {
/* TODO(http://crosbug.com/p/65013352) */
CPRINTS("Current %dmA not supported", charge_ma);
}
}
const struct button_config *recovery_buttons[] = {
&buttons[BUTTON_RECOVERY],
};
const int recovery_buttons_count = ARRAY_SIZE(recovery_buttons);
enum battery_present battery_is_present(void)
{
/* The GPIO is low when the battery is present */
return BP_NO;
}
int64_t get_time_dsw_pwrok(void)
{
/* DSW_PWROK is turned on before EC was powered. */
return -20 * MSEC;
}
int board_has_working_reset_flags(void)
{
int version = system_get_board_version();
/* Board Rev0 will lose reset flags on power cycle. */
if (version == 0)
return 0;
/* All other board versions should have working reset flags */
return 1;
}
const struct pwm_t pwm_channels[] = {
[PWM_CH_LED_RED] = { 3, PWM_CONFIG_DSLEEP, 100 },
[PWM_CH_LED_GREEN] = { 5, PWM_CONFIG_DSLEEP, 100 },
[PWM_CH_FAN] = {4, PWM_CONFIG_OPEN_DRAIN, 25000},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
struct fan_step {
int on;
int off;
int rpm;
};
/* Do not make the fan on/off point equal to 0 or 100 */
const struct fan_step fan_table[] = {
{.off = 2, .rpm = 0},
{.on = 16, .off = 2, .rpm = 2800},
{.on = 27, .off = 18, .rpm = 3200},
{.on = 35, .off = 29, .rpm = 3400},
{.on = 43, .off = 37, .rpm = 4200},
{.on = 54, .off = 45, .rpm = 4800},
{.on = 64, .off = 56, .rpm = 5200},
{.on = 97, .off = 83, .rpm = 5600},
};
#define NUM_FAN_LEVELS ARRAY_SIZE(fan_table)
int fan_percent_to_rpm(int fan, int pct)
{
static int current_level;
static int previous_pct;
int i;
/*
* Compare the pct and previous pct, we have the three paths :
* 1. decreasing path. (check the off point)
* 2. increasing path. (check the on point)
* 3. invariant path. (return the current RPM)
*/
if (pct < previous_pct) {
for (i = current_level; i >= 0; i--) {
if (pct <= fan_table[i].off)
current_level = i - 1;
else
break;
}
} else if (pct > previous_pct) {
for (i = current_level + 1; i < NUM_FAN_LEVELS; i++) {
if (pct >= fan_table[i].on)
current_level = i;
else
break;
}
}
if (current_level < 0)
current_level = 0;
previous_pct = pct;
if (fan_table[current_level].rpm !=
fan_get_rpm_target(fans[fan].ch))
cprintf(CC_THERMAL, "[%T Setting fan RPM to %d]\n",
fan_table[current_level].rpm);
return fan_table[current_level].rpm;
}
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