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author | Yidi Lin <yidi.lin@mediatek.com> | 2017-01-11 10:32:04 +0800 |
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committer | chrome-bot <chrome-bot@chromium.org> | 2017-02-09 20:48:43 -0800 |
commit | c54346f7830f9ee3607147cf32f541c4e1878503 (patch) | |
tree | 417772c89d5e9ce6a4b312822c15758a54100123 /board/rowan/board.c | |
parent | 39903f16979c0fd571f4cbd7f88f5458b5b9f9fe (diff) | |
download | chrome-ec-c54346f7830f9ee3607147cf32f541c4e1878503.tar.gz |
rowan: Add initial support for rowan
Copied from elm with string updated.
BRANCH=master
BUG=chrome-os-partner:62673
TEST=EC_FIRMWARE=rowan emerge-rowan chromeos-ec
Change-Id: I424e9ea1cb1520766222eff3156da5f6edbcc2fd
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/427560
Commit-Ready: Patrick Berny <pberny@chromium.org>
Tested-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: Rong Chang <rongchang@chromium.org>
Diffstat (limited to 'board/rowan/board.c')
-rw-r--r-- | board/rowan/board.c | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/board/rowan/board.c b/board/rowan/board.c new file mode 100644 index 0000000000..6808568702 --- /dev/null +++ b/board/rowan/board.c @@ -0,0 +1,587 @@ +/* Copyright 2016 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. + */ + +/* Oak board configuration */ + +#include "adc.h" +#include "adc_chip.h" +#include "atomic.h" +#include "battery.h" +#include "charge_manager.h" +#include "charge_state.h" +#include "charger.h" +#include "chipset.h" +#include "common.h" +#include "console.h" +#include "driver/accel_kionix.h" +#include "driver/accel_kx022.h" +#include "driver/tcpm/anx7688.h" +#include "driver/tcpm/tcpci.h" +#include "driver/temp_sensor/tmp432.h" +#include "extpower.h" +#include "gpio.h" +#include "hooks.h" +#include "host_command.h" +#include "i2c.h" +#include "keyboard_raw.h" +#include "keyboard_scan.h" +#include "lid_switch.h" +#include "math_util.h" +#include "motion_lid.h" +#include "motion_sense.h" +#include "pi3usb9281.h" +#include "power.h" +#include "power_button.h" +#include "registers.h" +#include "spi.h" +#include "switch.h" +#include "system.h" +#include "task.h" +#include "temp_sensor.h" +#include "temp_sensor_chip.h" +#include "thermal.h" +#include "timer.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) + +/* Dispaly port hardware can connect to port 0, 1 or neither. */ +#define PD_PORT_NONE -1 + +void pd_mcu_interrupt(enum gpio_signal signal) +{ +#ifdef HAS_TASK_PDCMD + /* Exchange status with PD MCU to determine interrupt cause */ + host_command_pd_send_status(0); +#endif +} + +void deferred_reset_pd_mcu(void); +DECLARE_DEFERRED(deferred_reset_pd_mcu); + +void usb_evt(enum gpio_signal signal) +{ + if (!gpio_get_level(GPIO_BC12_WAKE_L)) + task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0); +} + +#include "gpio_list.h" + +/* power signal list. Must match order of enum power_signal. */ +const struct power_signal_info power_signal_list[] = { + {GPIO_SOC_POWER_GOOD, 1, "POWER_GOOD"}, /* Active high */ + {GPIO_SUSPEND_L, 0, "SUSPEND#_ASSERTED"}, /* Active low */ +}; +BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT); + +/* ADC channels */ +const struct adc_t adc_channels[] = { + /* + * PSYS_MONITOR(PA2): ADC_IN2, 1.44 uA/W on 6.05k Ohm + * output in mW + */ + [ADC_PSYS] = {"PSYS", 379415, 4096, 0, STM32_AIN(2)}, + /* AMON_BMON(PC0): ADC_IN10, output in uV */ + [ADC_AMON_BMON] = {"AMON_BMON", 183333, 4096, 0, STM32_AIN(10)}, + /* VDC_BOOSTIN_SENSE(PC1): ADC_IN11, output in mV */ + [ADC_VBUS] = {"VBUS", 33000, 4096, 0, STM32_AIN(11)}, +}; +BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); + +int anx7688_passthru_allowed(const struct i2c_port_t *port, uint16_t address) +{ + /* Allow access to 0x2c (TCPC) */ + if (address == 0x2c) + return 1; + + CPRINTF("Passthru rejected on %x", address); + + return 0; +} + +/* I2C ports */ +const struct i2c_port_t i2c_ports[] = { + {"battery", I2C_PORT_BATTERY, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA}, + {"pd", I2C_PORT_PD_MCU, 1000, GPIO_I2C1_SCL, GPIO_I2C1_SDA, + anx7688_passthru_allowed} +}; + +const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); + +/* SPI devices */ +const struct spi_device_t spi_devices[] = { + { CONFIG_SPI_ACCEL_PORT, 2, GPIO_SPI2_NSS }, + { CONFIG_SPI_ACCEL_PORT, 2, GPIO_SPI2_NSS_DB } +}; +const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices); + +/* TCPC */ +const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = { + {I2C_PORT_TCPC, CONFIG_TCPC_I2C_BASE_ADDR, &anx7688_tcpm_drv}, +}; + +struct pi3usb9281_config pi3usb9281_chips[] = { + { + .i2c_port = I2C_PORT_PERICOM, + .mux_lock = NULL, + }, +}; +BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) == + CONFIG_USB_SWITCH_PI3USB9281_CHIP_COUNT); + +/* + * 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[] = { +#ifdef CONFIG_TEMP_SENSOR_TMP432 + {"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}, +#endif + {"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, + 0, 4}, +}; +BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); + +struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = { + { + .port_addr = 0, /* port idx */ + .driver = &anx7688_usb_mux_driver, + }, +}; + +/** + * Reset PD MCU + * ANX7688 needs a reset pulse of 50ms after power enable. + */ +void deferred_reset_pd_mcu(void) +{ + uint8_t state = gpio_get_level(GPIO_USB_C0_PWR_EN_L) | + (gpio_get_level(GPIO_USB_C0_RST) << 1); + + CPRINTS("%s %d", __func__, state); + switch (state) { + case 0: + /* + * PWR_EN_L low, RST low + * start reset sequence by turning off power enable + * and wait for 1ms. + */ + gpio_set_level(GPIO_USB_C0_PWR_EN_L, 1); + hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); + break; + case 1: + /* + * PWR_EN_L high, RST low + * pull PD reset pin and wait for another 1ms + */ + gpio_set_level(GPIO_USB_C0_RST, 1); + hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); + /* on PD reset, trigger PD task to reset state */ + task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0); + break; + case 3: + /* + * PWR_EN_L high, RST high + * enable power and wait for 10ms then pull RESET_N + */ + gpio_set_level(GPIO_USB_C0_PWR_EN_L, 0); + hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC); + break; + case 2: + /* + * PWR_EN_L low, RST high + * leave reset state + */ + gpio_set_level(GPIO_USB_C0_RST, 0); + break; + } +} + +static void board_power_on_pd_mcu(void) +{ + /* check if power is already on */ + if (!gpio_get_level(GPIO_USB_C0_PWR_EN_L)) + return; + + gpio_set_level(GPIO_USB_C0_EXTPWR_EN, 1); + hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); +} + +void board_reset_pd_mcu(void) +{ + /* enable port controller's cable detection before reset */ + anx7688_enable_cable_detection(0); + + /* wait for 10ms, then start port controller's reset sequence */ + hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC); +} + +int command_pd_reset(int argc, char **argv) +{ + board_reset_pd_mcu(); + return EC_SUCCESS; +} +DECLARE_CONSOLE_COMMAND(resetpd, command_pd_reset, + "", + "Reset PD IC"); + +/** + * There is a level shift for AC_OK & LID_OPEN signal between AP & EC, + * disable it (drive high) when AP is off, otherwise enable it (drive low). + */ +static void board_extpower_buffer_to_soc(void) +{ + /* Drive high when AP is off (G3), else drive low */ + gpio_set_level(GPIO_LEVEL_SHIFT_EN_L, + chipset_in_state(CHIPSET_STATE_HARD_OFF) ? 1 : 0); +} + +/* Initialize board. */ +static void board_init(void) +{ + /* Enable Level shift of AC_OK & LID_OPEN signals */ + board_extpower_buffer_to_soc(); + /* Enable rev1 testing GPIOs */ + gpio_set_level(GPIO_SYSTEM_POWER_H, 1); + /* Enable PD MCU interrupt */ + gpio_enable_interrupt(GPIO_PD_MCU_INT); + + /* Enable BC 1.2 */ + gpio_enable_interrupt(GPIO_BC12_CABLE_INT); + + /* Check if typeC is already connected, and do 7688 power on flow */ + board_power_on_pd_mcu(); + + /* Update VBUS supplier */ + usb_charger_vbus_change(0, !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L)); + + /* Remap SPI2 to DMA channels 6 and 7 */ + REG32(STM32_DMA1_BASE + 0xa8) |= (1 << 20) | (1 << 21) | + (1 << 24) | (1 << 25); +} +DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); + +/** + * Set active charge port -- only one port can active at a time. + * + * @param charge_port Charge port to enable. + * + * Return EC_SUCCESS if charge port is accepted and made active. + * EC_ERROR_* otherwise. + */ +int board_set_active_charge_port(int charge_port) +{ + /* charge port is a physical port */ + int is_real_port = (charge_port >= 0 && + charge_port < CONFIG_USB_PD_PORT_COUNT); + /* check if we are source VBUS on the port */ + int source = gpio_get_level(GPIO_USB_C0_5V_EN); + static int initialized; + + /* + * Reject charge port disable if our battery is critical and we + * have yet to initialize a charge port - continue to charge using + * charger ROM / POR settings. + */ + if (!initialized && + charge_port == CHARGE_PORT_NONE && + charge_get_percent() < 2) + return -1; + + if (is_real_port && source) { + CPRINTF("Skip enable p%d", charge_port); + return EC_ERROR_INVAL; + } + + CPRINTF("New chg p%d", charge_port); + + if (charge_port == CHARGE_PORT_NONE) { + /* Disable charging port */ + gpio_set_level(GPIO_USB_C0_CHARGE_L, 1); + } else { + /* Enable charging port */ + gpio_set_level(GPIO_USB_C0_CHARGE_L, 0); + } + + initialized = 1; + return EC_SUCCESS; +} + +/** + * Set the charge limit based upon desired maximum. + * + * @param port Port number. + * @param supplier Charge supplier type. + * @param charge_ma Desired charge limit (mA). + * @param charge_mv Negotiated charge voltage (mV). + */ +void board_set_charge_limit(int port, int supplier, int charge_ma, + int max_ma, int charge_mv) +{ + /* Limit input current 95% ratio on rowan board for safety */ + charge_ma = (charge_ma * 95) / 100; + charge_set_input_current_limit(MAX(charge_ma, + CONFIG_CHARGER_INPUT_CURRENT), charge_mv); + pd_send_host_event(PD_EVENT_POWER_CHANGE); +} + +/** + * Return whether ramping is allowed for given supplier + */ +int board_is_ramp_allowed(int supplier) +{ + /* Don't allow ramping in RO when write protected */ + if (system_get_image_copy() != SYSTEM_IMAGE_RW + && system_is_locked()) + return 0; + else + return supplier == CHARGE_SUPPLIER_BC12_DCP || + supplier == CHARGE_SUPPLIER_BC12_SDP || + supplier == CHARGE_SUPPLIER_BC12_CDP || + supplier == CHARGE_SUPPLIER_PROPRIETARY; +} + +/** + * Return the maximum allowed input current + */ +int board_get_ramp_current_limit(int supplier, int sup_curr) +{ + switch (supplier) { + case CHARGE_SUPPLIER_BC12_DCP: + return 2000; + case CHARGE_SUPPLIER_BC12_SDP: + return 1000; + case CHARGE_SUPPLIER_BC12_CDP: + case CHARGE_SUPPLIER_PROPRIETARY: + return sup_curr; + default: + return 500; + } +} + +/** + * Set AP reset. + * AP_RESET_L (PC3, CPU_WARM_RESET_L) is connected to PMIC SYSRSTB + */ +void board_set_ap_reset(int asserted) +{ + /* Signal is active-low */ + CPRINTS("ap warm reset(%d)", asserted); + gpio_set_level(GPIO_AP_RESET_L, !asserted); +} + +#ifdef CONFIG_TEMP_SENSOR_TMP432 +static void tmp432_set_power_deferred(void) +{ + /* Shut tmp432 down if not in S0 && no external power */ + if (!extpower_is_present() && !chipset_in_state(CHIPSET_STATE_ON)) { + if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_OFF)) + CPRINTS("ERROR: Can't shutdown TMP432."); + return; + } + + /* else, turn it on. */ + if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_ON)) + CPRINTS("ERROR: Can't turn on TMP432."); +} +DECLARE_DEFERRED(tmp432_set_power_deferred); +#endif + +/** + * Hook of AC change. turn on/off tmp432 depends on AP & AC status. + */ +static void board_extpower(void) +{ + board_extpower_buffer_to_soc(); +#ifdef CONFIG_TEMP_SENSOR_TMP432 + hook_call_deferred(&tmp432_set_power_deferred_data, 0); +#endif +} +DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT); + +/* Called on AP S5 -> S3 transition, and before HOOK_CHIPSET_STARTUP */ +static void board_chipset_pre_init(void) +{ + /* Enable level shift of AC_OK when power on */ + board_extpower_buffer_to_soc(); + + /* Enable SPI for KX022 */ + gpio_config_module(MODULE_SPI_MASTER, 1); + + /* Set all four SPI pins to high speed */ + /* pins D0/D1/D3/D4 */ + STM32_GPIO_OSPEEDR(GPIO_D) |= 0x000003cf; + /* pins F6 */ + STM32_GPIO_OSPEEDR(GPIO_F) |= 0x00003000; + + /* Enable clocks to SPI2 module */ + STM32_RCC_APB1ENR |= STM32_RCC_PB1_SPI2; + + /* Reset SPI2 */ + STM32_RCC_APB1RSTR |= STM32_RCC_PB1_SPI2; + STM32_RCC_APB1RSTR &= ~STM32_RCC_PB1_SPI2; + + spi_enable(CONFIG_SPI_ACCEL_PORT, 1); +} +DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, board_chipset_pre_init, HOOK_PRIO_DEFAULT); + +/* Called on AP S3 -> S5 transition */ +static void board_chipset_shutdown(void) +{ + /* Disable level shift to SoC when shutting down */ + gpio_set_level(GPIO_LEVEL_SHIFT_EN_L, 1); + + spi_enable(CONFIG_SPI_ACCEL_PORT, 0); + + /* Disable clocks to SPI2 module */ + STM32_RCC_APB1ENR &= ~STM32_RCC_PB1_SPI2; + + gpio_config_module(MODULE_SPI_MASTER, 0); + + /* + * Calling gpio_config_module sets disabled alternate function pins to + * GPIO_INPUT. But to prevent leakage we want to set GPIO_OUT_LOW + */ + gpio_set_flags_by_mask(GPIO_D, 0x1a, GPIO_OUT_LOW); + gpio_set_level(GPIO_SPI2_NSS, 0); + gpio_set_level(GPIO_SPI2_NSS_DB, 0); +} +DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT); + +/* Called on AP S3 -> S0 transition */ +static void board_chipset_resume(void) +{ +#ifdef CONFIG_TEMP_SENSOR_TMP432 + hook_call_deferred(&tmp432_set_power_deferred_data, 0); +#endif +} +DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); + +/* Called on AP S0 -> S3 transition */ +static void board_chipset_suspend(void) +{ +#ifdef CONFIG_TEMP_SENSOR_TMP432 + hook_call_deferred(&tmp432_set_power_deferred_data, 0); +#endif +} +DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); + +#ifdef HAS_TASK_MOTIONSENSE +/* Motion sensors */ +/* Mutexes */ +static struct mutex g_kx022_mutex[2]; + +/* Matrix to rotate accelerometer into standard reference frame */ +const matrix_3x3_t base_standard_ref = { + { FLOAT_TO_FP(-1), 0, 0}, + { 0, FLOAT_TO_FP(1), 0}, + { 0, 0, FLOAT_TO_FP(-1)} +}; + +const matrix_3x3_t lid_standard_ref = { + { FLOAT_TO_FP(1), 0, 0}, + { 0, FLOAT_TO_FP(-1), 0}, + { 0, 0, FLOAT_TO_FP(-1)} +}; + +/* KX022 private data */ +struct kionix_accel_data g_kx022_data[2]; + +struct motion_sensor_t motion_sensors[] = { + {.name = "Base Accel", + .active_mask = SENSOR_ACTIVE_S0, + .chip = MOTIONSENSE_CHIP_KX022, + .type = MOTIONSENSE_TYPE_ACCEL, + .location = MOTIONSENSE_LOC_BASE, + .drv = &kionix_accel_drv, + .mutex = &g_kx022_mutex[0], + .drv_data = &g_kx022_data[0], + .addr = 1, /* SPI, device ID 0 */ + .rot_standard_ref = &base_standard_ref, + .default_range = 2, /* g, enough for laptop. */ + .config = { + /* AP: by default use EC settings */ + [SENSOR_CONFIG_AP] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + /* EC use accel for angle detection */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + /* unused */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, + + {.name = "Lid Accel", + .active_mask = SENSOR_ACTIVE_S0, + .chip = MOTIONSENSE_CHIP_KX022, + .type = MOTIONSENSE_TYPE_ACCEL, + .location = MOTIONSENSE_LOC_LID, + .drv = &kionix_accel_drv, + .mutex = &g_kx022_mutex[1], + .drv_data = &g_kx022_data[1], + .addr = 3, /* SPI, device ID 1 */ + .rot_standard_ref = &lid_standard_ref, + .default_range = 2, /* g, enough for laptop. */ + .config = { + /* AP: by default use EC settings */ + [SENSOR_CONFIG_AP] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + /* EC use accel for angle detection */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + /* unused */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, +}; +const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); + +void lid_angle_peripheral_enable(int enable) +{ + keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE); + + /* enable/disable touchpad */ + gpio_set_level(GPIO_EN_TP_INT_L, !enable); +} +#endif /* defined(HAS_TASK_MOTIONSENSE) */ + +uint16_t tcpc_get_alert_status(void) +{ + return gpio_get_level(GPIO_PD_MCU_INT) ? PD_STATUS_TCPC_ALERT_0 : 0; +} + |