1 /* 2 * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #pragma once 8 9 #include <stdint.h> 10 11 #ifdef __cplusplus 12 extern "C" { 13 #endif 14 15 // USB persistence flags. 16 17 //This bit indicates persistence has been enabled, that is, the USB initialization routines should not 18 //reset the USB device as the device still is initialized and the host detected it with the same cdcacm/dfu 19 //descriptor as the ROM uses; we can just re-initialize the software side and have at 'er. 20 #define USBDC_PERSIST_ENA (1<<31) 21 22 //This bit indicates to the ROM that we rebooted because of a request to go into DFU mode; the ROM should 23 //honour this request. 24 #define USBDC_BOOT_DFU (1<<30) 25 26 27 //This being non-0 indicates a memory location where a 'testament' is stored, aka a piece of text that should be output 28 //after a reboot. Can contain core dump info or something. 29 #define USBDC_TESTAMENT_LOC_MASK 0x7FFFF //bits 19-0; this is added to a base address of 0x3FF80000. 30 31 //The testament is a FIFO. The ROM will output all data between textstart and textend; if textend is lower than textstart it will 32 //output everything from textstart to memend, then memstart to textend. 33 typedef struct { 34 char *memstart; //start of memory region 35 char *memend; //end of memory region 36 char *textstart; //start of text to output 37 char *textend; 38 } usbdc_testament_t; 39 40 #ifdef __cplusplus 41 } 42 #endif 43
