esp_rom: sync changes for ESP32-S3 USB related files, minor fix for S2

Used esp-rom tag esp32s3-20210327 and did manual cleanup.
Rename s_usb_osglue to rom_usb_osglue like it was done for esp32s2.
Some comments in esp32s2 headers are synced from esp32s3.

components/esp_rom/esp32s3/ld/esp32s3.rom.ld

@@ -792,7 +792,7 @@ usb_dfu_force_detach = 0x40002a54;
 usb_dev_deinit = 0x40002a60;
 usb_dw_ctrl_deinit = 0x40002a6c;
 /* Data (.data, .bss, .rodata) */
-s_usb_osglue = 0x3fceffac;
+rom_usb_osglue = 0x3fceffac;
 
 
 /***************************************

components/esp_rom/include/esp32s2/rom/usb/usb_dc.h

@@ -372,19 +372,43 @@ int usb_dc_ep_read_continue(uint8_t ep);
 int usb_dc_ep_mps(uint8_t ep);
 
 
-
-//Hack - fake interrupts by pollinfg
+/**
+ * @brief Poll for interrupts that need to be handled
+ *
+ * When the USB interrupt is not hooked up to an actual CPU interrupt, you
+ * can call this periodically to handle the USB events that need handling.
+ */
 void usb_dc_check_poll_for_interrupts(void);
 
 
-//Prepare for USB persist. You should reboot after this.
+/*
+ * @brief Prepare for USB persist
+ *
+ * This takes the USB peripheral offline in such a way that it seems 'just busy' to the
+ * host. This way, the chip can reboot (e.g. into bootloader mode) and pick up the USB
+ * configuration again, without the conenction to the host being interrupted.
+ *
+ * @note Actual persistence is depending on USBDC_PERSIST_ENA being set in flags, as this
+ * is also used to e.g. reboot into DFU mode.
+ *
+ * @note Please reboot soon after calling this.
+ */
 int usb_dc_prepare_persist(void);
 
-
+/*
+ * @brief USB interrupt handler
+ *
+ * This can be hooked up by the OS to the USB peripheral interrupt.
+ */
 void usb_dw_isr_handler(void);
 
+/**
+ * @brief Provide IDF with an interface to clear the static variable usb_dw_ctrl
+ *
+ *
+ */
+void usb_dw_ctrl_deinit(void);
 
-int usb_dc_ep_write_would_block(const uint8_t ep);
 
 
 #ifdef __cplusplus

components/esp_rom/include/esp32s2/rom/usb/usb_device.h

@@ -392,6 +392,12 @@ int usb_transfer_sync(uint8_t ep, uint8_t *data, size_t dlen, unsigned int flags
  */
 void usb_cancel_transfer(uint8_t ep);
 
+/**
+ * @brief Provide IDF with an interface to clear the static variable usb_dev
+ *
+ *
+ */
+void usb_dev_deinit(void);
 
 void usb_dev_resume(int configuration);
 int usb_dev_get_configuration(void);

components/esp_rom/include/esp32s3/rom/usb/usb_common.h

@@ -217,26 +217,6 @@ struct string_descriptor {
     uint16_t bString[];
 } __packed;
 
-#define ROM_MAX_CFG_DESC_CNT 1
-
-struct rom_usb_descriptors {
-    const struct usb_device_descriptor *device_descr;
-    const void *config_descr[ROM_MAX_CFG_DESC_CNT];
-    int string_count; // including string_descriptor_zero
-    const struct string_descriptor_zero *string0_descr;
-    const struct string_descriptor *string_descrs[];
-};
-
-/* Descriptors defined in the ROM */
-extern struct usb_device_descriptor general_device_descr;
-extern const void* acm_config_descr;
-extern const void* dfu_config_descr;
-extern const struct string_descriptor str_manu_descr;
-extern const struct string_descriptor str_prod_descr;
-extern const struct string_descriptor_zero string0_descr;
-extern const struct rom_usb_descriptors acm_usb_descriptors;
-extern const struct rom_usb_descriptors dfu_usb_descriptors;
-extern const struct rom_usb_descriptors *rom_usb_curr_desc;
 
 #ifdef __cplusplus
 }

components/esp_rom/include/esp32s3/rom/usb/usb_dc.h

@@ -372,19 +372,42 @@ int usb_dc_ep_read_continue(uint8_t ep);
 int usb_dc_ep_mps(uint8_t ep);
 
 
-
-//Hack - fake interrupts by pollinfg
+/**
+ * @brief Poll for interrupts that need to be handled
+ *
+ * When the USB interrupt is not hooked up to an actual CPU interrupt, you
+ * can call this periodically to handle the USB events that need handling.
+ */
 void usb_dc_check_poll_for_interrupts(void);
 
 
-//Prepare for USB persist. You should reboot after this.
+/*
+ * @brief Prepare for USB persist
+ *
+ * This takes the USB peripheral offline in such a way that it seems 'just busy' to the
+ * host. This way, the chip can reboot (e.g. into bootloader mode) and pick up the USB
+ * configuration again, without the conenction to the host being interrupted.
+ *
+ * @note Actual persistence is depending on USBDC_PERSIST_ENA being set in flags, as this
+ * is also used to e.g. reboot into DFU mode.
+ *
+ * @note Please reboot soon after calling this.
+ */
 int usb_dc_prepare_persist(void);
 
-
+/*
+ * @brief USB interrupt handler
+ *
+ * This can be hooked up by the OS to the USB peripheral interrupt.
+ */
 void usb_dw_isr_handler(void);
 
-
-int usb_dc_ep_write_would_block(const uint8_t ep);
+/**
+ * @brief Provide IDF with an interface to clear the static variable usb_dw_ctrl
+ *
+ *
+ */
+void usb_dw_ctrl_deinit(void);
 
 
 #ifdef __cplusplus

components/esp_rom/include/esp32s3/rom/usb/usb_device.h

@@ -392,6 +392,12 @@ int usb_transfer_sync(uint8_t ep, uint8_t *data, size_t dlen, unsigned int flags
  */
 void usb_cancel_transfer(uint8_t ep);
 
+/**
+ * @brief Provide IDF with an interface to clear the static variable usb_dev
+ *
+ *
+ */
+void usb_dev_deinit(void);
 
 void usb_dev_resume(int configuration);
 int usb_dev_get_configuration(void);

components/esp_rom/include/esp32s3/rom/usb/usb_dfu.h

@@ -140,6 +140,7 @@ int dfu_custom_handle_req(struct usb_setup_packet *pSetup,
 
 typedef void(*usb_dfu_detach_routine_t)(int delay);
 void usb_dfu_set_detach_cb(usb_dfu_detach_routine_t cb);
+void usb_dfu_force_detach(void);
 
 
 #ifdef __cplusplus

components/esp_rom/include/esp32s3/rom/usb/usb_os_glue.h

@@ -1,16 +1,8 @@
-// Copyright 2019-2020 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.
+/*
+ * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #pragma once
 
@@ -33,7 +25,7 @@ typedef struct {
     usb_osglue_wait_routine_t wait_proc;
 } usb_osglue_data_t;
 
-extern usb_osglue_data_t s_usb_osglue;
+extern usb_osglue_data_t rom_usb_osglue;
 
 #ifdef __cplusplus
 }

components/esp_rom/include/esp32s3/rom/usb/usb_persist.h

@@ -1,16 +1,8 @@
-// Copyright 2019-2020 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.
+/*
+ * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #pragma once
 
@@ -34,7 +26,7 @@ extern "C" {
 
 //This being non-0 indicates a memory location where a 'testament' is stored, aka a piece of text that should be output
 //after a reboot. Can contain core dump info or something.
-#define USBDC_TESTAMENT_LOC_MASK 0x7FFFF //bits 19-0; this is added to a base address of 0x3FF80000.
+#define USBDC_TESTAMENT_LOC_MASK 0x7FFFF //bits 19-0; this is added to a base address of SOC_MEM_INTERNAL_LOW. (0x3FF9E000)
 
 //The testament is a FIFO. The ROM will output all data between textstart and textend; if textend is lower than textstart it will
 //output everything from textstart to memend, then memstart to textend.

tools/ci/check_copyright_ignore.txt

@@ -530,8 +530,6 @@ components/esp_rom/include/esp32s3/rom/usb/usb_dc.h
 components/esp_rom/include/esp32s3/rom/usb/usb_descriptor.h
 components/esp_rom/include/esp32s3/rom/usb/usb_device.h
 components/esp_rom/include/esp32s3/rom/usb/usb_dfu.h
-components/esp_rom/include/esp32s3/rom/usb/usb_os_glue.h
-components/esp_rom/include/esp32s3/rom/usb/usb_persist.h
 components/esp_rom/include/esp_rom_crc.h
 components/esp_rom/include/esp_rom_gpio.h
 components/esp_rom/include/linux/soc/reset_reasons.h