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Add multi-touch descriptors (experimental)

teensy4-core
PaulStoffregen 8 years ago
parent
0d394a6e76
commit
42cbdc49c0
1 changed files with 101 additions and 1 deletions
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  1. +101
    -1
      teensy3/usb_desc.c

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teensy3/usb_desc.c View File

}; };
#endif #endif


#ifdef MULTITOUCH_INTERFACE
// https://forum.pjrc.com/threads/32331-USB-HID-Touchscreen-support-needed
// https://msdn.microsoft.com/en-us/library/windows/hardware/jj151563%28v=vs.85%29.aspx
// https://msdn.microsoft.com/en-us/library/windows/hardware/jj151565%28v=vs.85%29.aspx
// https://msdn.microsoft.com/en-us/library/windows/hardware/ff553734%28v=vs.85%29.aspx
// https://msdn.microsoft.com/en-us/library/windows/hardware/jj151564%28v=vs.85%29.aspx
// download.microsoft.com/download/a/d/f/adf1347d-08dc-41a4-9084-623b1194d4b2/digitizerdrvs_touch.docx
static uint8_t multitouch_report_desc[] = {
0x05, 0x0d, // Usage Page (Digitizer)
0x09, 0x04, // Usage (Touch Screen)
0xa1, 0x01, // Collection (Application)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81, 0x02, // Input (variable,absolute)
0x09, 0x30, // Usage (Pressure)
0x25, 0x7F, // Logical Maximum (127)
0x75, 0x07, // Report Size (7)
0x95, 0x01, // Report Count (1)
0x81, 0x02, // Input (variable,absolute)
0x09, 0x51, // Usage (Contact Identifier)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x02, // Report Count (1)
0x81, 0x02, // Input (variable,absolute)
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x65, 0x00, // Unit (None) <-- probably needs real units?
0x75, 0x10, // Report Size (16)
0x95, 0x01, // Report Count (2)
0x81, 0x02, // Input (variable,absolute)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x27, 0xFF, 0xFF, 0, 0, // Logical Maximum (65535)
0x75, 0x10, // Report Size (16)
0x95, 0x01, // Report Count (1)
0x09, 0x56, // Usage (Scan Time)
0x81, 0x02, // Input (variable,absolute)
0x09, 0x54, // Usage (Contact Count)
0x25, 0x0A, // Logical Maximum (10)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x81, 0x02, // Input (variable,absolute)
0x05, 0x0d, // Usage Page (Digitizers)
0x09, 0x55, // Usage (Contact Count Maximum)
0x25, 0x0A, // Logical Maximum (10)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0xB1, 0x02, // Feature (variable,absolute)
0xC0 // End Collection
};
#endif

#ifdef SEREMU_INTERFACE #ifdef SEREMU_INTERFACE
static uint8_t seremu_report_desc[] = { static uint8_t seremu_report_desc[] = {
0x06, 0xC9, 0xFF, // Usage Page 0xFFC9 (vendor defined) 0x06, 0xC9, 0xFF, // Usage Page 0xFFC9 (vendor defined)
#define AUDIO_INTERFACE_DESC_SIZE 0 #define AUDIO_INTERFACE_DESC_SIZE 0
#endif #endif


#define CONFIG_DESC_SIZE AUDIO_INTERFACE_DESC_POS+AUDIO_INTERFACE_DESC_SIZE
#define MULTITOUCH_INTERFACE_DESC_POS AUDIO_INTERFACE_DESC_POS+AUDIO_INTERFACE_DESC_SIZE
#ifdef MULTITOUCH_INTERFACE
#define MULTITOUCH_INTERFACE_DESC_SIZE 9+9+7
#define MULTITOUCH_HID_DESC_OFFSET MULTITOUCH_INTERFACE_DESC_POS+9
#else
#define MULTITOUCH_INTERFACE_DESC_SIZE 0
#endif

#define CONFIG_DESC_SIZE MULTITOUCH_INTERFACE_DESC_POS+MULTITOUCH_INTERFACE_DESC_SIZE






5, // bRefresh, 5 = 32ms 5, // bRefresh, 5 = 32ms
0, // bSynchAddress 0, // bSynchAddress
#endif #endif

#ifdef MULTITOUCH_INTERFACE
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
9, // bLength
4, // bDescriptorType
MULTITOUCH_INTERFACE, // bInterfaceNumber
0, // bAlternateSetting
1, // bNumEndpoints
0x03, // bInterfaceClass (0x03 = HID)
0x00, // bInterfaceSubClass
0x00, // bInterfaceProtocol
0, // iInterface
// HID interface descriptor, HID 1.11 spec, section 6.2.1
9, // bLength
0x21, // bDescriptorType
0x11, 0x01, // bcdHID
0, // bCountryCode
1, // bNumDescriptors
0x22, // bDescriptorType
LSB(sizeof(multitouch_report_desc)), // wDescriptorLength
MSB(sizeof(multitouch_report_desc)),
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
MULTITOUCH_ENDPOINT | 0x80, // bEndpointAddress
0x03, // bmAttributes (0x03=intr)
MULTITOUCH_SIZE, 0, // wMaxPacketSize
1, // bInterval
#endif // KEYMEDIA_INTERFACE
}; };




#ifdef KEYMEDIA_INTERFACE #ifdef KEYMEDIA_INTERFACE
{0x2200, KEYMEDIA_INTERFACE, keymedia_report_desc, sizeof(keymedia_report_desc)}, {0x2200, KEYMEDIA_INTERFACE, keymedia_report_desc, sizeof(keymedia_report_desc)},
{0x2100, KEYMEDIA_INTERFACE, config_descriptor+KEYMEDIA_HID_DESC_OFFSET, 9}, {0x2100, KEYMEDIA_INTERFACE, config_descriptor+KEYMEDIA_HID_DESC_OFFSET, 9},
#endif
#ifdef MULTITOUCH_INTERFACE
{0x2200, MULTITOUCH_INTERFACE, multitouch_report_desc, sizeof(multitouch_report_desc)},
{0x2100, MULTITOUCH_INTERFACE, config_descriptor+MULTITOUCH_HID_DESC_OFFSET, 9},
#endif #endif
{0x0300, 0x0000, (const uint8_t *)&string0, 0}, {0x0300, 0x0000, (const uint8_t *)&string0, 0},
{0x0301, 0x0409, (const uint8_t *)&usb_string_manufacturer_name, 0}, {0x0301, 0x0409, (const uint8_t *)&usb_string_manufacturer_name, 0},

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