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Software-only ESP8266 USB Device
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Joystick over ESPUSB #12

Open leopck opened 8 years ago

leopck commented 8 years ago

I've been trying to enable joystick over espusb, I've managed to add the joystick hid descriptor based off a joystick I have (Microsoft Force Feedback Joystick 2). I am trying to attempt to create a composite device with mouse + keyboard + joystick... is this possible?

Anyway, I managed to get some readings from the 'dmesg' by adding the hid descriptor into the usb_config.h but I'm receiving lots of errors as well :( I think I'm missing something or doing something wrong. Any advice? I've placed the usb_config.h together with this post.

[   28.127483] hid-generic 0003:ABCD:8266.0008: input,hidraw7: USB HID v1.10 Joystick [CNLohr ESPUSB2] on usb-0000:00:1d.0-1.2/input2

image

joystick_hid_desc

//From Microsoft Force Feedback Joystick 2 Reverse Engineered
static const uint8_t joystick_hid_desc[61] = {   /* USB report descriptor */
    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
    0x09, 0x04,                    // USAGE (Joystick)
    0xa1, 0x01,                    // COLLECTION (Application)
    0x85, 0x01,                    //   REPORT_ID (1)
    0xa1, 0x02,                    //   COLLECTION (Logical)
    0x09, 0x32,                    //     USAGE (Z)
    0x09, 0x31,                    //     USAGE (Y)
    0x09, 0x30,                    //     USAGE (X)
    0x15, 0x00,                    //     LOGICAL_MINIMUM (0)
    0x26, 0xff, 0x00,              //     LOGICAL_MAXIMUM (255)
    0x35, 0x00,                    //     PHYSICAL_MINIMUM (0)
    0x46, 0xff, 0x00,              //     PHYSICAL_MAXIMUM (255)
    0x75, 0x08,                    //     REPORT_SIZE (8)
    0x95, 0x03,                    //     REPORT_COUNT (3)
    0x81, 0x02,                    //     INPUT (Data,Var,Abs)
    0xc0,                          //   END_COLLECTION

    0x85, 0x02,                    // REPORT_ID (2)

    0xa1, 0x02,                    //   COLLECTION (Logical)
    0x05, 0x09,                    //     USAGE_PAGE (Button)
    0x29, 0x02,                    //     USAGE_MAXIMUM (Button 2)
    0x19, 0x01,                    //     USAGE_MINIMUM (Button 1)
    0x95, 0x02,                    //     REPORT_COUNT (2)
    0x75, 0x01,                    //     REPORT_SIZE (1)
    0x25, 0x01,                    //     LOGICAL_MAXIMUM (1)
    0x15, 0x00,                    //     LOGICAL_MINIMUM (0)
    0x81, 0x02,                    //     Input (Data, Variable, Absolute)
    0x95, 0x01,                    //     Report Count (1)
    0x75, 0x06,                    //     Report Size (6)
    0x81, 0x01,                    //     Input (Constant) for padding    
    0xc0,                          //   END_COLLECTION
0xc0 // END_COLLECTION
};

config_descriptor

    //Interface Descriptor:: Joystick
    0x09,// bLength
    0x04,// bDescriptorType

    //Need to adjust this accordingly if we add more devices :: bInterfaceNumber is like an ID so must be unique
    0x02,// bInterfaceNumber
    0x00,// bAlternateSetting
    0x02,// bNumEndPoints
    0x03,// bInterfaceClass   (Human Interface Device Class)
    0x00,// bInterfaceSubClass   
    0x00,// bInterfaceProtocol   
    0x00,// iInterface

    //HID Descriptor
    0x09,// bLength
    0x21,// bDescriptorType
    0x10,0x01,//    bcdHID
    0x00,// bCountryCode
    0x01,// bNumDescriptors
    0x22,// bDescriptorType   (Report descriptor)
//  0x3F,0x05,//    bDescriptorLength
    61, 0x00,// bDescriptorLength

    //Endpoint Descriptor IN
    0x07,// bLength
    0x05,// bDescriptorType
    0x81,// bEndpointAddress   (IN Endpoint)
    0x03,// bmAttributes    (Transfer: Interrupt / Synch: None / Usage: Data)
    0x40,0x00,//    wMaxPacketSize   (64 Bytes) 
    0x01,// bInterval

    //Endpoint Descriptor OUT   
    0x07,// bLength
    0x05,// bDescriptorType
    0x02,// bEndpointAddress   (OUT Endpoint)
    0x03,// bmAttributes    (Transfer: Interrupt / Synch: None / Usage: Data)
    0x10,0x00,//    wMaxPacketSize   (16 Bytes) 
    0x04,// bInterval

descriptor_list[](honestly, I don't have a clue on the 0x2200 thing, so i just added and increased the number sequentially :D)

descriptor_list[] = {
    {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
    {0x0200, 0x0000, config_descriptor, sizeof(config_descriptor)},
    {0x2200, 0x0000, mouse_hid_desc, sizeof(mouse_hid_desc)},
    {0x2200, 0x0001, keyboard_hid_desc, sizeof(keyboard_hid_desc)},
    {0x2200, 0x0002, joystick_hid_desc, sizeof(joystick_hid_desc)}, <---- added
    {0x0300, 0x0000, (const uint8_t *)&string0, 4},
    {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
    {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)},   
    {0x0303, 0x0409, (const uint8_t *)&string3, sizeof(STR_SERIAL)}
};

EDIT: Added the usb_config.h on gist: https://gist.github.com/leopck/aadf4d8c7362d8f4b353740e41a54fa7

cnlohr commented 8 years ago

set this to three: 0x02, // bNumInterfaces (Normally 1)

Actually, it looks like other work needs to be done. I am not the best at USB descriptors, but this doesn't look right. Also, be sure to update all total lengths that you've changed, i.e.

0x5A, 0x00, // wTotalLength