kopia lustrzana https://github.com/espressif/esp-idf
64 wiersze
1.9 KiB
C
64 wiersze
1.9 KiB
C
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/*
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* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "hal/usb_phy_ll.h"
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#include "hal/usb_phy_hal.h"
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void usb_phy_hal_init(usb_phy_hal_context_t *hal)
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{
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hal->wrap_dev = &USB_WRAP;
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#if SOC_USB_SERIAL_JTAG_SUPPORTED
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hal->jtag_dev = &USB_SERIAL_JTAG;
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#endif
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}
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void usb_phy_hal_otg_conf(usb_phy_hal_context_t *hal, usb_phy_target_t phy_target)
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{
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if (phy_target == USB_PHY_TARGET_EXT) {
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usb_phy_ll_ext_otg_enable(hal->wrap_dev);
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} else if (phy_target == USB_PHY_TARGET_INT) {
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usb_phy_ll_int_otg_enable(hal->wrap_dev);
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}
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}
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#if SOC_USB_SERIAL_JTAG_SUPPORTED
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void usb_phy_hal_jtag_conf(usb_phy_hal_context_t *hal, usb_phy_target_t phy_target)
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{
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if (phy_target == USB_PHY_TARGET_EXT) {
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usb_phy_ll_ext_jtag_enable(hal->jtag_dev);
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} else if (phy_target == USB_PHY_TARGET_INT) {
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usb_phy_ll_int_jtag_enable(hal->jtag_dev);
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}
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}
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#endif
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void usb_phy_hal_int_load_conf_host(usb_phy_hal_context_t *hal)
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{
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// HOST - upstream: dp_pd = 1, dm_pd = 1
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usb_phy_ll_int_load_conf(hal->wrap_dev, false, true, false, true);
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}
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void usb_phy_hal_int_load_conf_dev(usb_phy_hal_context_t *hal, usb_priv_speed_t speed)
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{
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// DEVICE - downstream
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if (speed == USB_PRIV_SPEED_LOW) {
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// LS: dm_pu = 1
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usb_phy_ll_int_load_conf(hal->wrap_dev, false, false, true, false);
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} else {
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// FS: dp_pu = 1
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usb_phy_ll_int_load_conf(hal->wrap_dev, true, false, false, false);
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}
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}
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void usb_phy_hal_int_mimick_disconn(usb_phy_hal_context_t *hal, bool disconn)
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{
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/*
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We mimick a disconnect by enabling the internal PHY's test mode, then forcing the output_enable to HIGH. This will:
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A HIGH output_enable will cause the received VP and VM to be zero, thus mimicking a disconnection.
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*/
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usb_phy_ll_int_enable_test_mode(hal->wrap_dev, disconn);
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}
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