diff options
Diffstat (limited to 'board/dingdong/board.c')
| -rw-r--r-- | board/dingdong/board.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/board/dingdong/board.c b/board/dingdong/board.c deleted file mode 100644 index ddaf6bb928..0000000000 --- a/board/dingdong/board.c +++ /dev/null @@ -1,187 +0,0 @@ -/* Copyright 2014 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. - */ -/* Dingdong dongle configuration */ - -#include "adc.h" -#include "common.h" -#include "ec_version.h" -#include "gpio.h" -#include "hooks.h" -#include "registers.h" -#include "usb_bb.h" -#include "usb_descriptor.h" -#include "usb_pd.h" -#include "task.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); -#include "gpio_list.h" - -/** - * 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; -} - -/* Initialize board. */ -void board_config_pre_init(void) -{ - /* enable SYSCFG clock */ - STM32_RCC_APB2ENR |= BIT(0); - /* Remap USART DMA to match the USART driver */ - STM32_SYSCFG_CFGR1 |= BIT(9) | BIT(10);/* Remap USART1 RX/TX DMA */ -} - -/* Initialize board. */ -static void board_init(void) -{ - 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); - - gpio_set_level(GPIO_STM_READY, 1); /* factory test only */ -} - -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)}, -}; -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("Dingdong"), - [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 = USB_SID_DISPLAYPORT, - .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), -}; |