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Diffstat (limited to 'board/coffeecake/board.c')
-rw-r--r-- | board/coffeecake/board.c | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/board/coffeecake/board.c b/board/coffeecake/board.c deleted file mode 100644 index e00c9e7b4b..0000000000 --- a/board/coffeecake/board.c +++ /dev/null @@ -1,317 +0,0 @@ -/* 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. - */ -/* Coffeecake dock configuration */ - -#include "adc.h" -#include "adc_chip.h" -#include "charger/sy21612.h" -#include "clock.h" -#include "common.h" -#include "ec_commands.h" -#include "ec_version.h" -#include "gpio.h" -#include "hooks.h" -#include "i2c.h" -#include "mcdp28x0.h" -#include "registers.h" -#include "task.h" -#include "usb_bb.h" -#include "usb_descriptor.h" -#include "usb_pd.h" -#include "timer.h" -#include "util.h" - -static volatile uint64_t hpd_prev_ts; -static volatile int hpd_prev_level; - -void hpd_event(enum gpio_signal signal); -void vbus_event(enum gpio_signal signal); -#include "gpio_list.h" - -/* I2C ports */ -const struct i2c_port_t i2c_ports[] = { - {"charger", I2C_PORT_SY21612, 400, GPIO_I2C0_SCL, GPIO_I2C0_SDA}, -}; -const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); - -/** - * 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) -{ - pd_send_hpd(0, hpd_irq); -} -DECLARE_DEFERRED(hpd_irq_deferred); - -void hpd_lvl_deferred(void) -{ - int level = gpio_get_level(GPIO_DP_HPD); - - if (level != hpd_prev_level) - /* It's a glitch while in deferred or canceled action */ - return; - - pd_send_hpd(0, (level) ? hpd_high : hpd_low); -} -DECLARE_DEFERRED(hpd_lvl_deferred); - -void hpd_event(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; -} - -/* Proto 0 workaround */ -void vbus_event(enum gpio_signal signal) -{ - /* Discharge VBUS on DET_L high */ - gpio_set_level(GPIO_PD_DISCHARGE, gpio_get_level(signal)); -} - -/* USB C VBUS output selection */ -void board_set_usb_output_voltage(int mv) -{ - const int ra = 40200; - const int rb = 10000; - const int rc = 6650; - int dac_mv; - uint32_t dac_val; - - if (mv >= 0) { - /* vbat = 1.0 * ra/rb + 1.0 - (vdac - 1.0) * ra/rc */ - dac_mv = 1000 + (1000 * rc / rb) + ((1000 - mv) * rc / ra); - if (dac_mv < 0) - dac_mv = 0; - - /* Set voltage Vout=Vdac with Vref = 3.3v */ - /* TODO: use Vdda instead */ - dac_val = dac_mv * 4096 / 3300; - /* Start DAC channel 2 */ - STM32_DAC_DHR12RD = dac_val << 16; - STM32_DAC_CR = STM32_DAC_CR_EN2; - } else { - STM32_DAC_CR = 0; - } -} - -/* Initialize board. */ -void board_config_pre_init(void) -{ - /* Enable SYSCFG clock */ - STM32_RCC_APB2ENR |= BIT(0); - /* Enable DAC interface clock. */ - STM32_RCC_APB1ENR |= BIT(29); - /* Delay 1 APB clock cycle after the clock is enabled */ - clock_wait_bus_cycles(BUS_APB, 1); - /* Set 5Vsafe Vdac */ - board_set_usb_output_voltage(5000); - /* Remap USART DMA to match the USART driver */ - STM32_SYSCFG_CFGR1 |= BIT(9) | BIT(10);/* Remap USART1 RX/TX DMA */ -} - -#ifdef CONFIG_SPI_FLASH - -static void board_init_spi2(void) -{ - /* Remap SPI2 to DMA channels 6 and 7 */ - STM32_SYSCFG_CFGR1 |= BIT(24); - - /* Set pin NSS to general purpose output mode (01b). */ - /* Set pins SCK, MISO, and MOSI to alternate function (10b). */ - STM32_GPIO_MODER(GPIO_B) &= ~0xff000000; - STM32_GPIO_MODER(GPIO_B) |= 0xa9000000; - - /* Set all four pins to alternate function 0 */ - STM32_GPIO_AFRH(GPIO_B) &= ~(0xffff0000); - - /* Set all four pins to output push-pull */ - STM32_GPIO_OTYPER(GPIO_B) &= ~(0xf000); - - /* Set pullup on NSS */ - STM32_GPIO_PUPDR(GPIO_B) |= 0x1000000; - - /* Set all four pins to high speed */ - STM32_GPIO_OSPEEDR(GPIO_B) |= 0xff000000; - - /* Reset SPI2 */ - STM32_RCC_APB1RSTR |= BIT(14); - STM32_RCC_APB1RSTR &= ~BIT(14); - - /* Enable clocks to SPI2 module */ - STM32_RCC_APB1ENR |= STM32_RCC_PB1_SPI2; -} -#endif /* CONFIG_SPI_FLASH */ - -static void factory_validation_deferred(void) -{ - struct mcdp_info info; - - mcdp_enable(); - - /* test mcdp via serial to validate function */ - if (!mcdp_get_info(&info) && (MCDP_FAMILY(info.family) == 0x0010) && - (MCDP_CHIPID(info.chipid) == 0x2850)) { - pd_log_event(PD_EVENT_VIDEO_CODEC, - PD_LOG_PORT_SIZE(0, sizeof(info)), - 0, &info); - } - - mcdp_disable(); -} -DECLARE_DEFERRED(factory_validation_deferred); - -static void board_post_init(void) -{ - sy21612_enable_regulator(1); - /* - * AC powered - DRP SOURCE - * DUT powered - DRP SINK - */ - pd_set_dual_role(0, gpio_get_level(GPIO_AC_PRESENT_L) ? - PD_DRP_FORCE_SINK : PD_DRP_FORCE_SOURCE); -} -DECLARE_DEFERRED(board_post_init); - -/* Initialize board. */ -static void board_init(void) -{ - timestamp_t now; -#ifdef CONFIG_SPI_FLASH - board_init_spi2(); -#endif - now = get_time(); - hpd_prev_level = gpio_get_level(GPIO_DP_HPD); - hpd_prev_ts = now.val; - gpio_enable_interrupt(GPIO_DP_HPD); - gpio_enable_interrupt(GPIO_CHARGER_INT); - gpio_enable_interrupt(GPIO_USB_C_VBUS_DET_L); - /* Set PD_DISCHARGE initial state */ - gpio_set_level(GPIO_PD_DISCHARGE, gpio_get_level(GPIO_USB_C_VBUS_DET_L)); - - /* Delay needed to allow HDMI MCU to boot. */ - hook_call_deferred(&factory_validation_deferred_data, 200*MSEC); - /* Initialize buck-boost converter */ - hook_call_deferred(&board_post_init_data, 0); -} - -DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); - -/* ADC channels */ -const struct adc_t adc_channels[] = { - /* USB PD CC lines sensing. Converted to mV (3300mV/4096). */ - [ADC_CH_CC1_PD] = {"USB_C_CC1_PD", 3300, 4096, 0, STM32_AIN(1)}, - [ADC_VBUS_MON] = {"VBUS_MON", 13200, 4096, 0, STM32_AIN(2)}, - [ADC_DAC_REF_TP28] = {"DAC_REF_TP28", 3300, 4096, 0, STM32_AIN(4)}, - [ADC_DAC_VOLT] = {"DAC_VOLT", 3300, 4096, 0, STM32_AIN(5)}, -}; -BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); - -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("Hoho"), - [USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32), - [USB_STR_BB_URL] = USB_STRING_DESC(USB_GOOGLE_TYPEC_URL), -}; -BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT); - -/** - * USB configuration - * Any type-C device with alternate mode capabilities must have the following - * set of descriptors. - * - * 1. Standard Device - * 2. BOS - * 2a. Container ID - * 2b. Billboard Caps - */ -struct my_bos { - struct usb_bos_hdr_descriptor bos; - struct usb_contid_caps_descriptor contid_caps; - struct usb_bb_caps_base_descriptor bb_caps; - struct usb_bb_caps_svid_descriptor bb_caps_svids[1]; -}; - -static struct my_bos bos_desc = { - .bos = { - .bLength = USB_DT_BOS_SIZE, - .bDescriptorType = USB_DT_BOS, - .wTotalLength = (USB_DT_BOS_SIZE + USB_DT_CONTID_SIZE + - USB_BB_CAPS_BASE_SIZE + - USB_BB_CAPS_SVID_SIZE * 1), - .bNumDeviceCaps = 2, /* contid + bb_caps */ - }, - .contid_caps = { - .bLength = USB_DT_CONTID_SIZE, - .bDescriptorType = USB_DT_DEVICE_CAPABILITY, - .bDevCapabilityType = USB_DC_DTYPE_CONTID, - .bReserved = 0, - .ContainerID = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, - }, - .bb_caps = { - .bLength = (USB_BB_CAPS_BASE_SIZE + USB_BB_CAPS_SVID_SIZE * 1), - .bDescriptorType = USB_DT_DEVICE_CAPABILITY, - .bDevCapabilityType = USB_DC_DTYPE_BILLBOARD, - .iAdditionalInfoURL = USB_STR_BB_URL, - .bNumberOfAlternateModes = 1, - .bPreferredAlternateMode = 1, - .VconnPower = 0, - .bmConfigured = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, - .bReserved = 0, - }, - .bb_caps_svids = { - { - .wSVID = 0xff01, /* TODO(tbroch) def'd in other CL remove hardcode */ - .bAlternateMode = 1, - .iAlternateModeString = USB_STR_BB_URL, /* TODO(crosbug.com/p/32687) */ - }, - }, -}; - -const struct bos_context bos_ctx = { - .descp = (void *)&bos_desc, - .size = sizeof(struct my_bos), -}; |