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- 2020-12-28
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发表于 2020-12-28 17:10:00
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__ALIGN_BEGIN static uint8_t Entity3Desc[] __ALIGN_END =
{
//Below is the report descriptor for an example multi-touch device, which can support
//up to 5 simultaneous contacts. This report descriptor also supports multiple device modes.
//The OS may select the device mode (ex: mouse, single-touch digitizer, multi-touch digitizer)
//by sending a SET_REPORT (feature) control transfer. In each mode, the device firmware
//should behave differently and send input packets on the HID IN endpoint, formatted
//based on the report descriptor collections associated with that mode.
//Each IN packet (HID report) sent to the host (in multi-touch digitizer mode) is ?? bytes long (Bytes 0-13).
//The data is sent in little endian format. To send the report to the host, verify
//that the HID IN endpoint buffer is not already busy, then place the data in the HID
//IN endpoint buffer SRAM, and then call the UsbSendEP5Report() function. The data will
//then get sent to the host, at the next opportunity when the host polls that endpoint
//(by sending an IN token packet to the endpoint).
//NOTE (Contact identifier number): For a multi-touch device, the firmware needs to
//keep track of each contact point separately and independantly. For example, suppose
//a human first presses one finger to the screen. The firmware would detect this, and
//it should arbitrarily assign a contact identifier number for this contact. Typically
//it would be assigned something like contact ID = "1". As the human moves their finger
//around on the contact surface the firmware will report new X and Y coordinate
//information for this contact, but the contact ID byte should always be = "1" for
//this contact.
//
//Now suppose the human places a second finger onto the touch surface, so there are
//two simultanous contacts. The firmware should assign this second contact a new
//contact ID, for instance, contact ID = "2". So long as the first contact is still
//valid, the firmware needs to continue reporting ID = "1" for the first contact.
//The firmware will continue to report information using these contact ID numbers
//until such time as a contact becomes invalid (human removes their finger from the
//screen).
//Top level collection for use in Multi-Touch Digitizer device mode.
//-------------------------------------------------------------------
//Format for multi-touch digitizer input reports Using this report descriptor:
//Byte[0] = Report ID == MULTI_TOUCH_DATA_REPORT_ID
//1st contact point info in bytes 1-6.
//Byte[1] = Bits7-3: pad bits (unused), Bit1:In Range, Bit0:Tip Switch
//Byte[2] = Contact identifier number (see note above)
//Byte[3] = X-coordinate LSB
//Byte[4] = X-coordinate MSB
//Byte[5] = Y-coordinate LSB
//Byte[6] = Y-coordinate MSB
//2nd contact point info in bytes 7-12
//Byte[7] = Bits7-3: pad bits (unused), Bit1:In Range, Bit0:Tip Switch
//Byte[8] = Contact identifier number (see note above)
//Byte[9] = X-coordinate LSB
//Byte[10]= X-coordinate MSB
//Byte[11]= Y-coordinate LSB
//Byte[12]= Y-coordinate MSB
//3rd contact point info in bytes 13-18
//Byte[13] = Bits7-3: pad bits (unused), Bit1:In Range, Bit0:Tip Switch
//Byte[14] = Contact identifier number (see note above)
//Byte[15] = X-coordinate LSB
//Byte[16] = X-coordinate MSB
//Byte[17] = Y-coordinate LSB
//Byte[18] = Y-coordinate MSB
//4th contact point info in bytes 19-24
//Byte[19] = Bits7-3: pad bits (unused), Bit1:In Range, Bit0:Tip Switch
//Byte[20] = Contact identifier number (see note above)
//Byte[21] = X-coordinate LSB
//Byte[22] = X-coordinate MSB
//Byte[23] = Y-coordinate LSB
//Byte[24] = Y-coordinate MSB
//5th contact point info in bytes 25-30
//Byte[25] = Bits7-3: pad bits (unused), Bit1:In Range, Bit0:Tip Switch
//Byte[26] = Contact identifier number (see note above)
//Byte[27] = X-coordinate LSB
//Byte[28]= X-coordinate MSB
//Byte[29]= Y-coordinate LSB
//Byte[30]= Y-coordinate MSB
//Byte[31]= 8-bit number indicating how many of the above contact points are valid.
// If only the first contact is valid, send "1" here. If both are valid, send "2".......etc.
//HID Report descriptor for an example Multi-Touch (5 simultaneous contacts), multi-modes device.
//------------------------------------------------------------------------------------------------
//Note: In a real application, at a minimum, certain terms in the report descriptor
//(ex: UNIT, UNIT_EXPONENT, PHYSICAL_MAXIMUM and LOGICAL_MAXIMUM) will need to be modified to
//match the characteristics (ex: size) of the actual application being developed. See the HID1_11.pdf
//specifications regarding these terms.
//contact point
0x05, 0x0D, // USAGE_PAGE (Digitizers)
0x09, 0x04, // USAGE (Touch Screen)
0xA1, 0x01, // COLLECTION (Application)
0x85, MULTI_TOUCH_DATA_REPORT_ID, // REPORT_ID (Touch)
0x09, 0x22, // USAGE (Finger)
//Finger 0
FINGER_USAGE,
//Finger 1
FINGER_USAGE,
//Finger 2
FINGER_USAGE,
//Finger 3
FINGER_USAGE,
//Finger 4
FINGER_USAGE,
//Finger 5
FINGER_USAGE,
//Finger 6
FINGER_USAGE,
//Finger 7
FINGER_USAGE,
//Finger 8
FINGER_USAGE,
//Finger 9
FINGER_USAGE,
//Timestamp in relative time - Scan Time
0x05, 0x0D, // Usage Page (Digitizer)
0x55, 0x0C, // Unit Exponent (-4)
0x66, 0x01, 0x10, // Unit (Seconds)
0x47, 0xFF, 0xFF, 0x00, 0x00, // Physical Maximum (65535)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65535)
0x75, 0x10, // Report Size (16)
0x95, 0x01, // Report Count (1)
0x09, 0x56, // Usage (0x56, Relative Scan Time)
0x81, 0x02, // Input (Data,Var,Abs)
//indicating how many of the above contact points
0x05, 0x0D, // USAGE_PAGE (Digitizers)
0x09, 0x54, // USAGE (Actual (contact) count)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x08, // REPORT_SIZE (8)
0x25, 0x0A, // LOGICAL_MAXIMUM (10)
0x81, 0x02, // INPUT (Data,Var,Abs)
//In addition to standard HID reports (containing contact X/Y/tip-switch/in-range
//information), the firmware can send feature report information to the host.
//Feature reports lets the host know information about the firmware/hardware
//application design. The host will typically request a feature report by sending
//a GET_REPORT control transfer, with the bRequest = REPORT, but with wIndex (MSB) = 0x03
//(get feature report request as indicated in the HID1_11.pdf specifications). If a
//feature report is sent to the host, it should be sent as a 2-byte packet (for
//this example project), formatted like follows:
//Byte[0]= Report ID == VALID_CONTACTS_FEATURE_REPORT_ID == Feature report ID
//Byte[1]= Maximum number of contacts simultaneously supported by this application. Always == 2 in this demo, since this report descriptor only has input fields for 2 contact points
//See the UserGetReportHandler() function that sends this type of packet in the MultiTouch.c file.
//GET_REPORT CTL : A1 01 52 03 04 00 02 00
// IN : 52 05
0x85, VALID_CONTACTS_FEATURE_REPORT_ID, // REPORT_ID (Feature)
0x09, 0x55, // USAGE(Maximum Count)
0xB1, 0x02, // FEATURE (Data,Var,Abs)
0x06, 0x00, 0xff, // USAGE_PAGE (Vendor Defined)
0x09, 0xC5, // USAGE (Vendor Usage 0xC5)
0x85, VALID_CONTACTS_FEATURE_REPORT_ID, // REPORT_ID (VALID_CONTACTS_FEATURE_REPORT_ID)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (0xff)
0x75, 0x08, // REPORT_SIZE (8)
0x96, 0x00, 0x01, // REPORT_COUNT (0x100) (256)
0xB1, 0x02, // FEATURE (Data,Var,Abs)
0x05, 0x0d, // USAGE_PAGE (Digitizer)
0x85, Latency_Mode_Feature_Report_ID, // REPORT_ID (Latency)
0x09, 0x60, // USAGE(Latency Mode)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x01, // REPORT_COUNT (1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0xb1, 0x02, // FEATURE (Data,Var,Abs)
0x95, 0x07, // REPORT_COUNT (7)
0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
0xC0, // END_COLLECTION
//Top level collection describing the feature report that the host will use (SET_REPORT (feature) control transfer) to set the device mode (ex: mouse, single-touch digitizer, multi-touch digitizer)
//-------------------------------------------------------------------
//Format of the feature report output data that the host will send to the device (when it wants to change the device mode):
//byte[0] = Report ID = DEVICE_MODE_FEATURE_REPORT_ID
//byte[1] = Device Mode (that the device should switch into)
//byte[2] = Device Identifier
//SET_REPORT CTL : 21 09 53 03 04 00 03 00
// IN : 53 02 00
0x09, 0x0E, // USAGE (Device Configuration)
0xa1, 0x01, // COLLECTION (Application)
0x85, DEVICE_MODE_FEATURE_REPORT_ID, // REPORT_ID (Configuration)
0x09, 0x23, // USAGE (Device Settings)
0xa1, 0x02, // COLLECTION (logical)
0x09, 0x52, // USAGE (Device Mode)
0x09, 0x53, // USAGE (Device Identifier)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x0a, // LOGICAL_MAXIMUM (10)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0xb1, 0x02, // FEATURE (Data,Var,Abs)
0xc0, // END_COLLECTION (logical)
0xc0, // END_COLLECTION (application)
//Top level collection for use in Mouse device mode.
//-------------------------------------------------------------------
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x02, // Usage (Mouse)
0xA1, 0x01, // Collection (Application)
0x85, MOUSE_DATA_REPORT_ID, // REPORT_ID (mouse)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x05, 0x09, // Usage Page (Buttons)
0x19, 0x01, // Usage Minimum (01)
0x29, 0x03, // Usage Maximum (03)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x45, 0x00, // Physical Maximum (0)
0x65, 0x00, // Unit (none)
0x95, 0x03, // Report Count (3)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data, Variable, Absolute)
0x95, 0x01, // Report Count (1)
0x75, 0x05, // Report Size (5)
0x81, 0x01, // Input (Constant) ;5 bit padding
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x15, 0x81, // Logical Minimum (-127)
0x25, 0x7F, // Logical Maximum (127)
0x75, 0x08, // Report Size (8)
0x95, 0x02, // Report Count (2)
0x81, 0x06, // Input (Data, Variable, Relative)
0xC0, // End Collection
0xC0, // End Collection
};
#define FINGER_USAGE \
0xA1, 0x02, /* COLLECTION (Logical) */ \
0x05, 0x0D, /* USAGE_PAGE (Digitizers) */ \
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 (Data,Var,Abs) */ \
0x09, 0x32, /* USAGE (In Range) */ \
0x81, 0x02, /* INPUT (Data,Var,Abs) */ \
0x09, 0x51, /* Usage(Contact ID) */ \
0x75, 0x06, /* REPORT_SIZE (6) */ \
0x95, 0x01, /* REPORT_COUNT (1) */ \
0x15, 0x00, /* LOGICAL_MINIMUM (0) */ \
0x25, 0x3F, /* LOGICAL_MAXIMUM (63) */ \
0x81, 0x02, /* INPUT (Data,Var,Abs) */ \
0x05, 0x01, /* USAGE_PAGE (Generic Desk.. */ \
0x26, 0x20, 0x35, /* LOGICAL_MAXIMUM (13600) */ \
0x75, 0x10, /* REPORT_SIZE (16) */ \
0x95, 0x01, /* REPORT_COUNT (1) */ \
0x55, 0x0E, /* UNIT_EXPONENT (-2) */ \
0x65, 0x33, /* UNIT (Inches, English Linear) */ \
0x09, 0x30, /* USAGE (X) */ \
0x35, 0x00, /* PHYSICAL_MINIMUM (0) */ \
0x46, 0x50, 0x05, /* PHYSICAL_MAXIMUM (0x550 = 1360) */ \
0x81, 0x02, /* INPUT (Data,Var,Abs) */ \
0x26, 0xE2, 0x1D, /* LOGICAL_MAXIMUM (7650) */ \
0x46, 0xFD, 0x02, /* PHYSICAL_MAXIMUM (0x2FD = 765) */ \
0x09, 0x31, /* USAGE (Y) */ \
0x81, 0x02, /* INPUT (Data,Var,Abs) */ \
0xC0 /* END_COLLECTION */
#endif
你可以試試看這是我寫的觸控描述 |
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