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Diffstat (limited to 'board/servo_v4p1/board.c')
| -rw-r--r-- | board/servo_v4p1/board.c | 538 |
1 files changed, 0 insertions, 538 deletions
diff --git a/board/servo_v4p1/board.c b/board/servo_v4p1/board.c deleted file mode 100644 index d8616ce340..0000000000 --- a/board/servo_v4p1/board.c +++ /dev/null @@ -1,538 +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. - */ -/* Servo V4p1 configuration */ - -#include "adc.h" -#include "ccd_measure_sbu.h" -#include "chg_control.h" -#include "common.h" -#include "console.h" -#include "dacs.h" -#include <driver/gl3590.h> -#include "driver/ioexpander/tca64xxa.h" -#include "ec_version.h" -#include "fusb302b.h" -#include "gpio.h" -#include "hooks.h" -#include "i2c.h" -#include "ina231s.h" -#include "ioexpanders.h" -#include "pathsel.h" -#include "pi3usb9201.h" -#include "queue_policies.h" -#include "registers.h" -#include "spi.h" -#include "system.h" -#include "task.h" -#include "timer.h" -#include "tusb1064.h" -#include "update_fw.h" -#include "usart-stm32f0.h" -#include "usart_tx_dma.h" -#include "usart_rx_dma.h" -#include "usb_gpio.h" -#include "usb_i2c.h" -#include "usb_mux.h" -#include "usb_pd.h" -#include "usb_spi.h" -#include "usb-stream.h" -#include "util.h" - -#ifdef SECTION_IS_RO -#define CROS_EC_SECTION "RO" -#else -#define CROS_EC_SECTION "RW" -#endif - -/****************************************************************************** - * GPIO interrupt handlers. - */ -#ifdef SECTION_IS_RO -static void vbus0_evt(enum gpio_signal signal) -{ - task_wake(TASK_ID_PD_C0); -} - -static void vbus1_evt(enum gpio_signal signal) -{ - task_wake(TASK_ID_PD_C1); -} - -static void tca_evt(enum gpio_signal signal) -{ - irq_ioexpanders(); -} - -const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { - [CHG] = { /* CHG port connected directly to USB 3.0 hub, no mux */ }, - [DUT] = { /* DUT port with UFP mux */ - .usb_port = DUT, - .i2c_port = I2C_PORT_MASTER, - .i2c_addr_flags = TUSB1064_I2C_ADDR10_FLAGS, - .driver = &tusb1064_usb_mux_driver, - } -}; - -static volatile uint64_t hpd_prev_ts; -static volatile int hpd_prev_level; - -/** - * Hotplug detect deferred task - * - * Called after level change on hpd GPIO to evaluate (and debounce) what event - * has occurred. There are 3 events that occur on HPD: - * 1. low : downstream display sink is deattached - * 2. high : downstream display sink is attached - * 3. irq : downstream display sink signalling an interrupt. - * - * The debounce times for these various events are: - * HPD_USTREAM_DEBOUNCE_LVL : min pulse width of level value. - * HPD_USTREAM_DEBOUNCE_IRQ : min pulse width of IRQ low pulse. - * - * lvl(n-2) lvl(n-1) lvl prev_delta now_delta event - * ---------------------------------------------------- - * 1 0 1 <IRQ n/a low glitch (ignore) - * 1 0 1 >IRQ <LVL irq - * x 0 1 n/a >LVL high - * 0 1 0 <LVL n/a high glitch (ignore) - * x 1 0 n/a >LVL low - */ - -void hpd_irq_deferred(void) -{ - int dp_mode = pd_alt_mode(1, TCPCI_MSG_SOP, USB_SID_DISPLAYPORT); - - if (dp_mode) { - pd_send_hpd(DUT, hpd_irq); - ccprintf("HPD IRQ"); - } -} -DECLARE_DEFERRED(hpd_irq_deferred); - -void hpd_lvl_deferred(void) -{ - int level = gpio_get_level(GPIO_DP_HPD); - int dp_mode = pd_alt_mode(1, TCPCI_MSG_SOP, USB_SID_DISPLAYPORT); - - if (level != hpd_prev_level) { - /* It's a glitch while in deferred or canceled action */ - return; - } - - if (dp_mode) { - pd_send_hpd(DUT, level ? hpd_high : hpd_low); - ccprintf("HPD: %d", level); - } -} -DECLARE_DEFERRED(hpd_lvl_deferred); - -static void dp_evt(enum gpio_signal signal) -{ - timestamp_t now = get_time(); - int level = gpio_get_level(signal); - uint64_t cur_delta = now.val - hpd_prev_ts; - - /* Store current time */ - hpd_prev_ts = now.val; - - /* All previous hpd level events need to be re-triggered */ - hook_call_deferred(&hpd_lvl_deferred_data, -1); - - /* It's a glitch. Previous time moves but level is the same. */ - if (cur_delta < HPD_USTREAM_DEBOUNCE_IRQ) - return; - - if ((!hpd_prev_level && level) && - (cur_delta < HPD_USTREAM_DEBOUNCE_LVL)) { - /* It's an irq */ - hook_call_deferred(&hpd_irq_deferred_data, 0); - } else if (cur_delta >= HPD_USTREAM_DEBOUNCE_LVL) { - hook_call_deferred(&hpd_lvl_deferred_data, - HPD_USTREAM_DEBOUNCE_LVL); - } - - hpd_prev_level = level; -} - -static void tcpc_evt(enum gpio_signal signal) -{ - update_status_fusb302b(); -} - -#define HOST_HUB 0 -struct uhub_i2c_iface_t uhub_config[] = { - {I2C_PORT_MASTER, GL3590_I2C_ADDR0}, -}; - -static void host_hub_evt(void) -{ - gl3590_irq_handler(HOST_HUB); -} -DECLARE_DEFERRED(host_hub_evt); - -static void hub_evt(enum gpio_signal signal) -{ - hook_call_deferred(&host_hub_evt_data, 0); -} - -static void dut_pwr_evt(enum gpio_signal signal) -{ - ccprintf("dut_pwr_evt\n"); -} - -/* Enable uservo USB. */ -static void init_uservo_port(void) -{ - /* Enable USERVO_POWER_EN */ - ec_uservo_power_en(1); - - gl3590_enable_ports(0, GL3590_DFP4, 1); - - /* Connect uservo to host hub */ - uservo_fastboot_mux_sel(0); -} - -void ext_hpd_detection_enable(int enable) -{ - if (enable) { - timestamp_t now = get_time(); - - hpd_prev_level = gpio_get_level(GPIO_DP_HPD); - hpd_prev_ts = now.val; - gpio_enable_interrupt(GPIO_DP_HPD); - } else { - gpio_disable_interrupt(GPIO_DP_HPD); - } -} -#endif /* SECTION_IS_RO */ - -#include "gpio_list.h" - -#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args) -#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args) - -/****************************************************************************** - * Board pre-init function. - */ - -void board_config_pre_init(void) -{ - /* enable SYSCFG clock */ - STM32_RCC_APB2ENR |= BIT(0); - - /* - * the DMA mapping is : - * Chan 2 : TIM1_CH1 (CHG RX) - Default mapping - * Chan 3 : SPI1_TX (CHG TX) - Default mapping - * Chan 4 : USART1 TX - Remapped from default Chan 2 - * Chan 5 : USART1 RX - Remapped from default Chan 3 - * Chan 6 : TIM3_CH1 (DUT RX) - Remapped from default Chan 4 - * Chan 7 : SPI2_TX (DUT TX) - Remapped from default Chan 5 - * - * As described in the comments above, both USART1 TX/RX and DUT Tx/RX - * channels must be remapped from the defulat locations. Remapping is - * acoomplished by setting the following bits in the STM32_SYSCFG_CFGR1 - * register. Information about this register and its settings can be - * found in section 11.3.7 DMA Request Mapping of the STM RM0091 - * Reference Manual - */ - /* Remap USART1 Tx from DMA channel 2 to channel 4 */ - STM32_SYSCFG_CFGR1 |= BIT(9); - /* Remap USART1 Rx from DMA channel 3 to channel 5 */ - STM32_SYSCFG_CFGR1 |= BIT(10); - /* Remap TIM3_CH1 from DMA channel 4 to channel 6 */ - STM32_SYSCFG_CFGR1 |= BIT(30); - /* Remap SPI2 Tx from DMA channel 5 to channel 7 */ - STM32_SYSCFG_CFGR1 |= BIT(24); -} - -/****************************************************************************** - * Set up USB PD - */ - -/* ADC channels */ -const struct adc_t adc_channels[] = { - /* USB PD CC lines sensing. Converted to mV (3300mV/4096). */ - [ADC_CHG_CC1_PD] = {"CHG_CC1_PD", 3300, 4096, 0, STM32_AIN(2)}, - [ADC_CHG_CC2_PD] = {"CHG_CC2_PD", 3300, 4096, 0, STM32_AIN(4)}, - [ADC_DUT_CC1_PD] = {"DUT_CC1_PD", 3300, 4096, 0, STM32_AIN(0)}, - [ADC_DUT_CC2_PD] = {"DUT_CC2_PD", 3300, 4096, 0, STM32_AIN(5)}, - [ADC_SBU1_DET] = {"SBU1_DET", 3300, 4096, 0, STM32_AIN(3)}, - [ADC_SBU2_DET] = {"SBU2_DET", 3300, 4096, 0, STM32_AIN(7)}, - [ADC_SUB_C_REF] = {"SUB_C_REF", 3300, 4096, 0, STM32_AIN(1)}, -}; -BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); - - -/****************************************************************************** - * Forward UARTs as a USB serial interface. - */ - -#define USB_STREAM_RX_SIZE 16 -#define USB_STREAM_TX_SIZE 16 - -/****************************************************************************** - * Forward USART3 as a simple USB serial interface. - */ - -static struct usart_config const usart3; -struct usb_stream_config const usart3_usb; - -static struct queue const usart3_to_usb = QUEUE_DIRECT(64, uint8_t, - usart3.producer, usart3_usb.consumer); -static struct queue const usb_to_usart3 = QUEUE_DIRECT(64, uint8_t, - usart3_usb.producer, usart3.consumer); - -static struct usart_config const usart3 = - USART_CONFIG(usart3_hw, - usart_rx_interrupt, - usart_tx_interrupt, - 115200, - 0, - usart3_to_usb, - usb_to_usart3); - -USB_STREAM_CONFIG(usart3_usb, - USB_IFACE_USART3_STREAM, - USB_STR_USART3_STREAM_NAME, - USB_EP_USART3_STREAM, - USB_STREAM_RX_SIZE, - USB_STREAM_TX_SIZE, - usb_to_usart3, - usart3_to_usb) - - -/****************************************************************************** - * Forward USART4 as a simple USB serial interface. - */ - -static struct usart_config const usart4; -struct usb_stream_config const usart4_usb; - -static struct queue const usart4_to_usb = QUEUE_DIRECT(64, uint8_t, - usart4.producer, usart4_usb.consumer); -static struct queue const usb_to_usart4 = QUEUE_DIRECT(64, uint8_t, - usart4_usb.producer, usart4.consumer); - -static struct usart_config const usart4 = - USART_CONFIG(usart4_hw, - usart_rx_interrupt, - usart_tx_interrupt, - 9600, - 0, - usart4_to_usb, - usb_to_usart4); - -USB_STREAM_CONFIG_USART_IFACE(usart4_usb, - USB_IFACE_USART4_STREAM, - USB_STR_USART4_STREAM_NAME, - USB_EP_USART4_STREAM, - USB_STREAM_RX_SIZE, - USB_STREAM_TX_SIZE, - usb_to_usart4, - usart4_to_usb, - usart4) - - -/* - * Define usb interface descriptor for the `EMPTY` usb interface, to satisfy - * UEFI and kernel requirements (see b/183857501). - */ -const struct usb_interface_descriptor -USB_IFACE_DESC(USB_IFACE_EMPTY) = { - .bLength = USB_DT_INTERFACE_SIZE, - .bDescriptorType = USB_DT_INTERFACE, - .bInterfaceNumber = USB_IFACE_EMPTY, - .bAlternateSetting = 0, - .bNumEndpoints = 0, - .bInterfaceClass = USB_CLASS_VENDOR_SPEC, - .bInterfaceSubClass = 0, - .bInterfaceProtocol = 0, - .iInterface = 0, -}; - -/****************************************************************************** - * Define the strings used in our USB descriptors. - */ - -const void *const usb_strings[] = { - [USB_STR_DESC] = usb_string_desc, - [USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."), - [USB_STR_PRODUCT] = USB_STRING_DESC("Servo V4p1"), - [USB_STR_SERIALNO] = USB_STRING_DESC("1234-a"), - [USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32), - [USB_STR_I2C_NAME] = USB_STRING_DESC("I2C"), - [USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Servo EC Shell"), - [USB_STR_USART3_STREAM_NAME] = USB_STRING_DESC("DUT UART"), - [USB_STR_USART4_STREAM_NAME] = USB_STRING_DESC("Atmega UART"), - [USB_STR_UPDATE_NAME] = USB_STRING_DESC("Firmware update"), -}; - -BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT); - - - -/****************************************************************************** - * Support I2C bridging over USB. - */ - -/* I2C ports */ -const struct i2c_port_t i2c_ports[] = { - {"master", I2C_PORT_MASTER, 100, - GPIO_MASTER_I2C_SCL, GPIO_MASTER_I2C_SDA}, -}; -const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); - -int usb_i2c_board_is_enabled(void) { return 1; } - - -/****************************************************************************** - * Initialize board. - */ - -int board_get_version(void) -{ - return board_id_det(); -} - -#ifdef SECTION_IS_RO -/* Forward declaration */ -static void evaluate_input_power_def(void); -DECLARE_DEFERRED(evaluate_input_power_def); - -static void evaluate_input_power_def(void) -{ - int state; - static int retry = 3; - - /* Wait until host hub INTR# signal is asserted */ - state = gpio_get_level(GPIO_USBH_I2C_BUSY_INT); - if ((state == 0) && retry--) { - hook_call_deferred(&evaluate_input_power_def_data, 100 * MSEC); - return; - } - - if (retry == 0) - CPRINTF("Host hub I2C isn't online, expect issues with its " - "behaviour\n"); - - gpio_enable_interrupt(GPIO_USBH_I2C_BUSY_INT); - - gl3590_init(HOST_HUB); - - init_uservo_port(); - init_pathsel(); -} -#endif - -static void board_init(void) -{ - /* USB to serial queues */ - queue_init(&usart3_to_usb); - queue_init(&usb_to_usart3); - queue_init(&usart4_to_usb); - queue_init(&usb_to_usart4); - - /* UART init */ - usart_init(&usart3); - usart_init(&usart4); - - /* Delay DUT hub to avoid brownout. */ - usleep(MSEC); - - init_pi3usb9201(); - - /* Clear BBRAM, we don't want any PD state carried over on reset. */ - system_set_bbram(SYSTEM_BBRAM_IDX_PD0, 0); - system_set_bbram(SYSTEM_BBRAM_IDX_PD1, 0); - -#ifdef SECTION_IS_RO - init_ioexpanders(); - CPRINTS("Board ID is %d", board_id_det()); - - init_dacs(); - init_uservo_port(); - init_pathsel(); - init_ina231s(); - init_fusb302b(1); - vbus_dischrg_en(0); - - /* Bring atmel part out of reset */ - atmel_reset_l(1); - - /* - * Get data about available input power. Defer this check, since we need - * to wait for USB2/USB3 enumeration on host hub as well as I2C - * interface of this hub needs to be initialized. Genesys recommends at - * least 100ms. - */ - hook_call_deferred(&evaluate_input_power_def_data, 100 * MSEC); - - /* Enable DUT USB2.0 pair. */ - gpio_set_level(GPIO_FASTBOOT_DUTHUB_MUX_EN_L, 0); - - /* Enable VBUS detection to wake PD tasks fast enough */ - gpio_enable_interrupt(GPIO_USB_DET_PP_CHG); - gpio_enable_interrupt(GPIO_USB_DET_PP_DUT); - - gpio_enable_interrupt(GPIO_STM_FAULT_IRQ_L); - gpio_enable_interrupt(GPIO_DP_HPD); - gpio_enable_interrupt(GPIO_DUT_PWR_IRQ_ODL); - - /* Disable power to DUT by default */ - chg_power_select(CHG_POWER_OFF); - - /* - * Voltage transition needs to occur in lockstep between the CHG and - * DUT ports, so initially limit voltage to 5V. - */ - pd_set_max_voltage(PD_MIN_MV); - - /* Start SuzyQ detection */ - start_ccd_meas_sbu_cycle(); -#else /* SECTION_IS_RO */ - CPRINTS("Board ID is %d", board_id_det()); -#endif /* SECTION_IS_RO */ -} -DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); - -#ifdef SECTION_IS_RO -void tick_event(void) -{ - static int i = 0; - - i++; - switch (i) { - case 1: - tca_gpio_dbg_led_k_odl(1); - break; - case 2: - break; - case 3: - tca_gpio_dbg_led_k_odl(0); - break; - case 4: - i = 0; - break; - } -} -DECLARE_HOOK(HOOK_TICK, tick_event, HOOK_PRIO_DEFAULT); - -struct ioexpander_config_t ioex_config[] = { - [0] = { - .drv = &tca64xxa_ioexpander_drv, - .i2c_host_port = TCA6416A_PORT, - .i2c_addr_flags = TCA6416A_ADDR, - .flags = TCA64XXA_FLAG_VER_TCA6416A - }, - [1] = { - .drv = &tca64xxa_ioexpander_drv, - .i2c_host_port = TCA6424A_PORT, - .i2c_addr_flags = TCA6424A_ADDR, - .flags = TCA64XXA_FLAG_VER_TCA6424A - } -}; - -#endif /* SECTION_IS_RO */ |