mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
42f3bca5a1
ESP32-S3 has two USB peripheral, one is USB_OTG, another is USB_JTAG_SERIAL A new mux has been introduced to select internal/external PHY interface.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
|
|
#include "soc/soc.h"
|
|
#include "soc/system_reg.h"
|
|
#include "soc/gpio_sig_map.h"
|
|
#include "soc/usb_periph.h"
|
|
#include "soc/rtc_cntl_struct.h"
|
|
|
|
static inline void usb_ll_int_phy_enable(void)
|
|
{
|
|
USB_WRAP.otg_conf.pad_enable = 1;
|
|
// USB_OTG use internal PHY
|
|
USB_WRAP.otg_conf.phy_sel = 0;
|
|
// phy_sel is controlled by the following register value
|
|
RTCCNTL.usb_conf.sw_hw_usb_phy_sel = 1;
|
|
// phy_sel=sw_usb_phy_sel=1, USB_OTG is connected with internal PHY
|
|
RTCCNTL.usb_conf.sw_usb_phy_sel = 1;
|
|
}
|
|
|
|
static inline void usb_ll_ext_phy_enable(void)
|
|
{
|
|
USB_WRAP.otg_conf.pad_enable = 1;
|
|
// USB_OTG use external PHY
|
|
USB_WRAP.otg_conf.phy_sel = 1;
|
|
// phy_sel is controlled by the following register value
|
|
RTCCNTL.usb_conf.sw_hw_usb_phy_sel = 1;
|
|
// phy_sel=sw_usb_phy_sel=0, USB_OTG is connected with external PHY through GPIO Matrix
|
|
RTCCNTL.usb_conf.sw_usb_phy_sel = 0;
|
|
}
|
|
|
|
static inline void usb_ll_int_phy_pullup_conf(bool dp_pu, bool dp_pd, bool dm_pu, bool dm_pd)
|
|
{
|
|
usb_wrap_otg_conf_reg_t conf = USB_WRAP.otg_conf;
|
|
conf.pad_pull_override = 1;
|
|
conf.dp_pullup = dp_pu;
|
|
conf.dp_pulldown = dp_pd;
|
|
conf.dm_pullup = dm_pu;
|
|
conf.dm_pulldown = dm_pd;
|
|
USB_WRAP.otg_conf = conf;
|
|
}
|