kopia lustrzana https://github.com/skuep/AIOC
313 wiersze
11 KiB
C
313 wiersze
11 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include "tusb.h"
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#include "usb_descriptors.h"
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#include "settings.h"
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#include "stm32f3xx_hal.h"
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//--------------------------------------------------------------------+
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// Device Descriptors
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//--------------------------------------------------------------------+
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tusb_desc_device_t desc_device = {
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.bLength = sizeof(tusb_desc_device_t),
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.bDescriptorType = TUSB_DESC_DEVICE,
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.bcdUSB = USB_BCD,
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.bDeviceClass = TUSB_CLASS_MISC,
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.bDeviceSubClass = MISC_SUBCLASS_COMMON,
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.bDeviceProtocol = MISC_PROTOCOL_IAD,
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.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
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.idVendor = USB_VID,
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.idProduct = USB_PID,
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.bcdDevice = 0x0100,
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.iManufacturer = STR_IDX_MANUFACTURER,
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.iProduct = STR_IDX_PRODUCT,
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.iSerialNumber = STR_IDX_SERIAL,
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.bNumConfigurations = 0x01
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};
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// Invoked when received GET DEVICE DESCRIPTOR
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// Application return pointer to descriptor
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uint8_t const* tud_descriptor_device_cb(void) {
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/* Get up-to-date USB settings */
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desc_device.idVendor = (settingsRegMap[SETTINGS_REG_USBID] & SETTINGS_REG_USBID_VID_MASK) >> SETTINGS_REG_USBID_VID_OFFS;
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desc_device.idProduct = (settingsRegMap[SETTINGS_REG_USBID] & SETTINGS_REG_USBID_PID_MASK) >> SETTINGS_REG_USBID_PID_OFFS;
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return (uint8_t const*) &desc_device;
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}
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//--------------------------------------------------------------------+
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// HID Report Descriptor
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//--------------------------------------------------------------------+
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uint8_t const desc_hid_report[] = {
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/* CM108 emulation. */
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HID_USAGE_PAGE ( HID_USAGE_PAGE_CONSUMER ),
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HID_USAGE ( HID_USAGE_CONSUMER_CONTROL ),
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HID_COLLECTION ( HID_COLLECTION_APPLICATION ),
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/* Volume Up/Dn */
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HID_LOGICAL_MIN ( 0x00 ),
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HID_LOGICAL_MAX ( 0x01 ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_REPORT_SIZE ( 1 ),
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HID_REPORT_COUNT( 2 ),
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HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ),
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/* Mute */
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_INPUT ( HID_DATA | HID_VARIABLE | HID_RELATIVE ),
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/* Hook Switch */
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HID_USAGE_PAGE ( HID_USAGE_PAGE_TELEPHONY ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_REPORT_COUNT( 1 ),
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HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE | HID_NULL_STATE),
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/* Filler */
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HID_USAGE_PAGE ( HID_USAGE_PAGE_CONSUMER ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_REPORT_COUNT( 3 ),
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HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ),
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/* GPIO and Status */
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HID_LOGICAL_MAX_N ( 0xFF, 2 ),
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_REPORT_SIZE ( 8 ),
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HID_REPORT_COUNT( 3 ),
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HID_INPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ),
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/* Output */
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HID_USAGE ( 0x00 /* Unassigned */ ),
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HID_REPORT_COUNT( 4 ),
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HID_OUTPUT ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ),
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HID_COLLECTION_END
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};
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// Invoked when received GET HID REPORT DESCRIPTOR
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// Application return pointer to descriptor
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// Descriptor contents must exist long enough for transfer to complete
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uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
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{
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(void) itf;
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return desc_hid_report;
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}
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//--------------------------------------------------------------------+
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// Configuration Descriptor
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//--------------------------------------------------------------------+
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#define CONFIG_TOTAL_LEN ( \
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TUD_CONFIG_DESC_LEN + \
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AIOC_AUDIO_DESC_LEN + \
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AIOC_HID_DESC_LEN + \
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AIOC_CDC_DESC_LEN + \
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AIOC_DFU_RT_DESC_LEN \
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)
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uint8_t const desc_fs_configuration[] = {
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// Config number, interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(
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/* config_num */ 1,
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/* _itfcount */ ITF_NUM_TOTAL,
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/* _stridx */ 0x00,
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/* _total_len */ CONFIG_TOTAL_LEN,
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/* _attribute */ 0x00,
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/* _power_ma */ 100
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),
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AIOC_AUDIO_DESCRIPTOR(
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/* _itfnum */ ITF_NUM_AUDIO_CONTROL,
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/* _stridx */ STR_IDX_AUDIOITF,
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/* _nBytesPerSample */ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE,
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/* _nBitsUsedPerSample */ CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE*8,
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/* _epin */ EPNUM_AUDIO_IN,
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/* _epinsize */ CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX,
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/* _epout */ EPNUM_AUDIO_OUT,
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/* _epoutsize */ CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX,
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/* _epfb */ EPNUM_AUDIO_FB
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),
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AIOC_HID_DESCRIPTOR(
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/* _itfnum */ ITF_NUM_HID,
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/* _stridx */ STR_IDX_HIDITF,
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/* _boot_protocol */HID_ITF_PROTOCOL_NONE,
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/*_report_desc_len*/sizeof(desc_hid_report),
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/* _epin */ EPNUM_HID_IN,
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/* _epsize */ CFG_TUD_HID_EP_BUFSIZE,
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/* _ep_interval */ 0x20
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),
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AIOC_CDC_DESCRIPTOR(
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/* _itfnum */ ITF_NUM_CDC_0,
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/* _stridx */ STR_IDX_CDCITF,
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/* _ep_notif */ EPNUM_CDC_0_NOTIF,
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/* _ep_notif_size */ 8,
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/* _epout */ EPNUM_CDC_0_OUT,
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/* _epin */ EPNUM_CDC_0_IN,
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/* _epsize */ CFG_TUD_CDC_EP_BUFSIZE
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),
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AIOC_DFU_RT_DESCRIPTOR(
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/* _itfnum */ ITF_NUM_DFU_RT,
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/* _stridx */ STR_IDX_DFU_RT,
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/* _attr */ DFU_ATTR_WILL_DETACH | \
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DFU_ATTR_CAN_UPLOAD | \
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DFU_ATTR_CAN_DOWNLOAD,
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/* _timeout */ 255, /* not used if WILL_DETACH */
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/* _xfer_size */ 2048 /* max size for stm32 dfu bootloader */
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)
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};
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// Invoked when received GET CONFIGURATION DESCRIPTOR
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// Application return pointer to descriptor
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// Descriptor contents must exist long enough for transfer to complete
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uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
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(void) index; // for multiple configurations
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TU_ASSERT(!TUD_OPT_HIGH_SPEED);
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return desc_fs_configuration;
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}
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//--------------------------------------------------------------------+
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// String Descriptors
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//--------------------------------------------------------------------+
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static uint32_t calc_crc32(const uint8_t *buf_ptr, uint32_t buf_len) {
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/* Generate a serial number from processor UID using CRC32 */
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const uint32_t crc32_init = 0xFFFFFFFFUL;
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const uint32_t crc32_poly = 0xEDB88320UL;
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const uint32_t crc32_final = 0xFFFFFFFFUL;
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uint32_t serial = crc32_init; /* CRC32 Initial value */
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while (buf_len-- > 0) {
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uint8_t byte = *buf_ptr++;
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serial = serial ^ byte;
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for (uint8_t j = 0; j < 8; j++) {
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uint32_t mask = -(serial & 1);
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serial = (serial >> 1) ^ (crc32_poly & mask);
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}
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}
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return serial ^ crc32_final;
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}
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static const char * get_serial(void) {
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static char serial_str[sizeof(uint32_t) * 2 + 1];
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uint32_t serial_num = calc_crc32((uint8_t *) UID_BASE, 12);
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for (uint8_t i = 0; i < (sizeof(uint32_t) * 2); i++) {
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uint8_t nibble = ((serial_num & 0xF0000000UL) >> 28);
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serial_str[i] = nibble < 0xA ? nibble + '0' : nibble - 0xA + 'a';
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serial_num <<= 4;
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}
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return serial_str;
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}
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static uint8_t ascii_to_utf16(uint8_t *buffer, uint32_t size, const char *str) {
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uint8_t len = 0;
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while ((*str != '\0') && (size > 0)) {
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*buffer++ = *str++;
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*buffer++ = 0x00;
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size -= 2;
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len += 2;
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}
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return len;
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}
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// Invoked when received GET STRING DESCRIPTOR request
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// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
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const uint16_t * tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
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static uint8_t buffer[64];
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uint8_t *ptr = &buffer[2];
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uint8_t len = sizeof(buffer) - 2;
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(void) langid;
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switch (index) {
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case STR_IDX_LANGUAGE:
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ptr[0] = 0x09;
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ptr[1] = 0x04;
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len = 2;
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break;
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case STR_IDX_MANUFACTURER:
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len = ascii_to_utf16(ptr, len, USB_STRING_MANUFACTURER);
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break;
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case STR_IDX_PRODUCT:
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len = ascii_to_utf16(ptr, len, USB_STRING_PRODUCT);
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break;
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case STR_IDX_SERIAL:
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len = ascii_to_utf16(ptr, len, get_serial());
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break;
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case STR_IDX_CDCITF:
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len = ascii_to_utf16(ptr, len, USB_STRING_CDCITF);
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break;
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case STR_IDX_AUDIOITF:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOITF);
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break;
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case STR_IDX_AUDIOIN:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOIN);
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break;
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case STR_IDX_AUDIOOUT:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOOUT);
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break;
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case STR_IDX_AUDIOINVOL:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOINVOL);
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break;
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case STR_IDX_AUDIOOUTVOL:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOOUTVOL);
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break;
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case STR_IDX_AUDIOINCHAN:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOINCHAN);
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break;
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case STR_IDX_AUDIOOUTCHAN:
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len = ascii_to_utf16(ptr, len, USB_STRING_AUDIOOUTCHAN);
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break;
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case STR_IDX_HIDITF:
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len = ascii_to_utf16(ptr, len, USB_STRING_HIDITF);
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break;
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case STR_IDX_DFU_RT:
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len = ascii_to_utf16(ptr, len, USB_STRING_DFU_RT);
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break;
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default:
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TU_ASSERT(0, NULL);
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break;
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}
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buffer[0] = len + 2;
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buffer[1] = TUSB_DESC_STRING;
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return (void *) buffer;
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}
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