complete refactor to directly pass reports and interfaces
This commit is contained in:
+229
@@ -0,0 +1,229 @@
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "pico/stdlib.h"
|
||||
#include "bsp/board_api.h"
|
||||
#include "tusb.h"
|
||||
|
||||
#include "hyperx_elite2.h"
|
||||
#include "usb_host.h"
|
||||
|
||||
#include "usb_device.h"
|
||||
|
||||
char cdc_buf[64];
|
||||
uint16_t cdc_len;
|
||||
size_t cdc_count;
|
||||
device_state_t device_state;
|
||||
|
||||
static uint8_t desc_configuration[DESC_CFG_MAX];
|
||||
static uint16_t _desc_str[32+1];
|
||||
|
||||
static tusb_desc_device_t const desc_device =
|
||||
{
|
||||
.bLength = sizeof(tusb_desc_device_t),
|
||||
.bDescriptorType = TUSB_DESC_DEVICE,
|
||||
.bcdUSB = USB_BCD,
|
||||
|
||||
// Use Interface Association Descriptor (IAD) for CDC
|
||||
// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
|
||||
.bDeviceClass = TUSB_CLASS_MISC,
|
||||
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
|
||||
.bDeviceProtocol = MISC_PROTOCOL_IAD,
|
||||
|
||||
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
|
||||
|
||||
.idVendor = USB_VID,
|
||||
.idProduct = USB_PID,
|
||||
.bcdDevice = 0x0100,
|
||||
|
||||
.iManufacturer = 0x01,
|
||||
.iProduct = 0x02,
|
||||
.iSerialNumber = 0x03,
|
||||
|
||||
.bNumConfigurations = 0x01
|
||||
};
|
||||
static char const* string_desc_arr [] =
|
||||
{
|
||||
(const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
|
||||
"Raspberry Pi", // 1: Manufacturer
|
||||
"Pico HyperX Elite 2 RGB Controller", // 2: Product
|
||||
NULL, // 3: Serials, should use chip ID
|
||||
"Pico HyperX Elite 2 CDC", // 4: CDC
|
||||
"Pico HyperX Elite 2 HID", // 5: HID
|
||||
};
|
||||
|
||||
static void usb_device_init(void);
|
||||
|
||||
// main task for USB device
|
||||
void usb_device_main(void) {
|
||||
// start ADC for reading LDR
|
||||
startADC();
|
||||
|
||||
// initialize TinyUSB device
|
||||
device_state = DEVICE_INACTIVE;
|
||||
usb_device_init();
|
||||
|
||||
while (true) {
|
||||
switch ( device_state ) {
|
||||
case DEVICE_ACTIVE:
|
||||
break;
|
||||
case DEVICE_INACTIVE:
|
||||
break;
|
||||
case DEVICE_RESTART:
|
||||
if (tud_disconnect()) {
|
||||
sleep_ms(100);
|
||||
if (tud_connect()) {
|
||||
if ( host_state == HOST_INACTIVE ) {
|
||||
device_state = DEVICE_INACTIVE;
|
||||
} else {
|
||||
device_state = DEVICE_ACTIVE;
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
get_light(); // get the ADC LDR reading
|
||||
tud_task();
|
||||
tud_cdc_write_flush();
|
||||
}
|
||||
}
|
||||
|
||||
// initialize the TinyUSB device
|
||||
static void usb_device_init(void) {
|
||||
// run TinyUSB device
|
||||
tusb_rhport_init_t dev_init = {
|
||||
.role = TUSB_ROLE_DEVICE,
|
||||
.speed = TUSB_SPEED_AUTO,
|
||||
};
|
||||
tusb_init(BOARD_TUH_RHPORT, &dev_init);
|
||||
}
|
||||
|
||||
// Invoked when received GET DEVICE DESCRIPTOR
|
||||
// Application return pointer to descriptor
|
||||
uint8_t const * tud_descriptor_device_cb(void)
|
||||
{
|
||||
return (uint8_t const *) &desc_device;
|
||||
}
|
||||
|
||||
// Invoked when received GET CONFIGURATION DESCRIPTOR
|
||||
// Application return pointer to descriptor
|
||||
// Descriptor contents must exist long enough for transfer to complete
|
||||
uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
|
||||
{
|
||||
(void) index; // for multiple configurations
|
||||
|
||||
memset(desc_configuration, 0, sizeof(desc_configuration));
|
||||
uint8_t desc_initial[TUD_CONFIG_DESC_LEN+TUD_CDC_DESC_LEN+1] = {
|
||||
TUD_CONFIG_DESCRIPTOR(1, 2+num_mounted, 0, TUD_CONFIG_DESC_LEN+TUD_CDC_DESC_LEN+num_mounted*TUD_HID_DESC_LEN, 0x00, 100),
|
||||
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF, 8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64)
|
||||
};
|
||||
memcpy(desc_configuration, desc_initial, TUD_CONFIG_DESC_LEN+TUD_CDC_DESC_LEN);
|
||||
|
||||
if ( descriptors != NULL) {
|
||||
struct report_desc *descriptor;
|
||||
for (uint8_t i=0; i<num_mounted; i++) {
|
||||
descriptor = report_desc_find(descriptors->dev_addr, i);
|
||||
uint8_t hid_desc[TUD_HID_DESC_LEN+1] = {
|
||||
TUD_HID_DESCRIPTOR(ITF_NUM_HID+i, 5, HID_ITF_PROTOCOL_NONE, descriptor->desc_len, EPNUM_HID+i, CFG_TUD_HID_EP_BUFSIZE, 1)
|
||||
};
|
||||
memcpy(&desc_configuration[TUD_CONFIG_DESC_LEN+TUD_CDC_DESC_LEN+i*TUD_HID_DESC_LEN], hid_desc, TUD_HID_DESC_LEN);
|
||||
}
|
||||
}
|
||||
|
||||
return desc_configuration;
|
||||
}
|
||||
|
||||
// Invoked when received GET STRING DESCRIPTOR request
|
||||
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
|
||||
uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
|
||||
{
|
||||
(void) langid;
|
||||
|
||||
uint8_t chr_count;
|
||||
|
||||
switch (index) {
|
||||
case 0: // langid
|
||||
memcpy(&_desc_str[1], string_desc_arr[0], 2);
|
||||
chr_count = 1;
|
||||
break;
|
||||
case 3: // serial
|
||||
chr_count = board_usb_get_serial(_desc_str+1, 32);
|
||||
break;
|
||||
default:
|
||||
// Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
|
||||
// https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
|
||||
|
||||
if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
|
||||
|
||||
char* str = string_desc_arr[index];
|
||||
|
||||
// Cap at max char
|
||||
chr_count = (uint8_t) strlen(str);
|
||||
if ( chr_count > 31 ) chr_count = 31;
|
||||
|
||||
// Convert ASCII string into UTF-16
|
||||
for(uint8_t i=0; i<chr_count; i++) {
|
||||
_desc_str[1+i] = str[i];
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
// first byte is length (including header), second byte is string type
|
||||
_desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
|
||||
|
||||
return _desc_str;
|
||||
}
|
||||
|
||||
// Invoked when received GET HID REPORT DESCRIPTOR
|
||||
// Application return pointer to descriptor
|
||||
// Descriptor contents must exist long enough for transfer to complete
|
||||
uint8_t const * tud_hid_descriptor_report_cb(uint8_t itf)
|
||||
{
|
||||
if ( descriptors != NULL) {
|
||||
struct report_desc * descriptor = report_desc_find(descriptors->dev_addr, itf);
|
||||
if ( descriptor != NULL ) {
|
||||
return descriptor->descriptor;
|
||||
}
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
// Invoked when received SET_REPORT control request or
|
||||
// received data on OUT endpoint ( Report ID = 0, Type = 0 )
|
||||
void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize) {
|
||||
// forward to device connected to host
|
||||
if (descriptors != NULL) {
|
||||
tuh_hid_set_report(descriptors->dev_addr, instance, report_id, report_type, buffer, bufsize);
|
||||
}
|
||||
}
|
||||
|
||||
// Invoked when received GET_REPORT control request
|
||||
// Application must fill buffer report's content and return its length.
|
||||
// Return zero will cause the stack to STALL request
|
||||
uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
|
||||
{
|
||||
(void) instance;
|
||||
(void) report_id;
|
||||
(void) report_type;
|
||||
(void) buffer;
|
||||
(void) reqlen;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// print message to CDC in raw hex
|
||||
void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) {
|
||||
(void) msg;
|
||||
(void) msg_len;
|
||||
for (int i=0; i<msg_len; i++) {
|
||||
cdc_count=sprintf(cdc_buf, "%02X ", msg[i]);
|
||||
tud_cdc_write(cdc_buf, cdc_count);
|
||||
}
|
||||
tud_cdc_write_str("\n");
|
||||
}
|
||||
Reference in New Issue
Block a user