mirror of
https://github.com/arabine/open-story-teller.git
synced 2025-12-06 17:09:06 +01:00
229 lines
7.5 KiB
C
229 lines
7.5 KiB
C
#include "tusb.h"
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#include "class/msc/msc.h"
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#include "device/usbd.h"
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#include "fs_task.h"
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/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
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* Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
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*
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* Auto ProductID layout's Bitmap:
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* [MSB] HID | MSC | CDC [LSB]
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*/
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#define _PID_MAP(itf, n) ((CFG_TUD_##itf) << (n))
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#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
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_PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4))
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#define USB_VID 0x0c45
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#define USB_BCD 0x6840
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// Bus 003 Device 075: ID 0c45:6840 Microdia USB2.0 DSP
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//--------------------------------------------------------------------+
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// Device Descriptors
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//--------------------------------------------------------------------+
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tusb_desc_device_t const desc_device =
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{
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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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// Use Interface Association Descriptor (IAD) for CDC
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// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
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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 = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01};
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#include "debug.h"
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#include "usb_task.h"
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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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{
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return (uint8_t const *)&desc_device;
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}
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//--------------------------------------------------------------------+
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// Configuration Descriptor
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//--------------------------------------------------------------------+
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enum
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{
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ITF_NUM_MSC,
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ITF_NUM_TOTAL
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};
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#define EPNUM_MSC_OUT 0x01
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#define EPNUM_MSC_IN 0x81
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#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_MSC_DESC_LEN)
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// full speed configuration
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uint8_t const desc_fs_configuration[] =
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{
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// Config number, interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
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// Interface number, string index, EP Out & EP In address, EP size
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TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 3, EPNUM_MSC_OUT, EPNUM_MSC_IN, 64),
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};
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#if TUD_OPT_HIGH_SPEED
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// Per USB specs: high speed capable device must report device_qualifier and other_speed_configuration
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// high speed configuration
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uint8_t const desc_hs_configuration[] =
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{
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// Config number, interface count, string index, total length, attribute, power in mA
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TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
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// Interface number, string index, EP Out & EP In address, EP size
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TUD_MSC_DESCRIPTOR(ITF_NUM_MSC, 3, EPNUM_MSC_OUT, EPNUM_MSC_IN, 512),
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};
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// other speed configuration
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uint8_t desc_other_speed_config[CONFIG_TOTAL_LEN];
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// device qualifier is mostly similar to device descriptor since we don't change configuration based on speed
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tusb_desc_device_qualifier_t const desc_device_qualifier =
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{
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.bLength = sizeof(tusb_desc_device_qualifier_t),
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.bDescriptorType = TUSB_DESC_DEVICE_QUALIFIER,
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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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.bNumConfigurations = 0x01,
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.bReserved = 0x00};
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// Invoked when received GET DEVICE QUALIFIER 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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// device_qualifier descriptor describes information about a high-speed capable device that would
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// change if the device were operating at the other speed. If not highspeed capable stall this request.
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uint8_t const *tud_descriptor_device_qualifier_cb(void)
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{
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return (uint8_t const *)&desc_device_qualifier;
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}
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// Invoked when received GET OTHER SEED CONFIGURATION 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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// Configuration descriptor in the other speed e.g if high speed then this is for full speed and vice versa
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uint8_t const *tud_descriptor_other_speed_configuration_cb(uint8_t index)
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{
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(void)index; // for multiple configurations
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// if link speed is high return fullspeed config, and vice versa
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// Note: the descriptor type is OHER_SPEED_CONFIG instead of CONFIG
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memcpy(desc_other_speed_config,
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(tud_speed_get() == TUSB_SPEED_HIGH) ? desc_fs_configuration : desc_hs_configuration,
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CONFIG_TOTAL_LEN);
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desc_other_speed_config[1] = TUSB_DESC_OTHER_SPEED_CONFIG;
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return desc_other_speed_config;
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}
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#endif // highspeed
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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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{
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(void)index; // for multiple configurations
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#if TUD_OPT_HIGH_SPEED
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// Although we are highspeed, host may be fullspeed.
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return (tud_speed_get() == TUSB_SPEED_HIGH) ? desc_hs_configuration : desc_fs_configuration;
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#else
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return desc_fs_configuration;
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#endif
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}
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//--------------------------------------------------------------------+
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// String Descriptors
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//--------------------------------------------------------------------+
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/*
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Caractéristiques USB de la Lunii
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T: Bus=03 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 75 Spd=480 MxCh= 0
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D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
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P: Vendor=0c45 ProdID=6840 Rev=01.00
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S: Product=USB2.0 DSP
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S: SerialNumber=USB2.0 DSP
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C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=500mA
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I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
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E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
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E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
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*/
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// array of pointer to string descriptors
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char const *string_desc_arr[] =
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{
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(const char[]){0x09, 0x04}, // 0: is supported language is English (0x0409)
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"D8S EURL", // 1: Manufacturer
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"USB2.0 DSP", // 2: Product
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"USB2.0 DSP", // 3: MSC Interface
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};
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static uint16_t _desc_str[32];
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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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uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid)
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{
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(void)langid;
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uint8_t chr_count;
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if (index == 0)
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{
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memcpy(&_desc_str[1], string_desc_arr[0], 2);
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chr_count = 1;
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}
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else
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{
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// Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
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// https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
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if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])))
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return NULL;
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const char *str = string_desc_arr[index];
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// Cap at max char
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chr_count = (uint8_t)strlen(str);
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if (chr_count > 31)
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chr_count = 31;
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// Convert ASCII string into UTF-16
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for (uint8_t i = 0; i < chr_count; i++)
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{
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_desc_str[1 + i] = str[i];
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}
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}
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// first byte is length (including header), second byte is string type
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_desc_str[0] = (uint16_t)((TUSB_DESC_STRING << 8) | (2 * chr_count + 2));
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return _desc_str;
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}
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