// Copyright 2018 The Fuchsia Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include #include #include #include #include static const uint8_t egalax_touch_report_desc[] = { 0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x04, // Usage (Touch Screen) 0xA1, 0x01, // Collection (Application) 0x85, 0x02, // Report ID (2) 0x09, 0x20, // Usage (Stylus) 0xA1, 0x00, // Collection (Physical) 0x09, 0x42, // Usage (Tip Switch) 0x09, 0x32, // Usage (In Range) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x95, 0x02, // Report Count (2) 0x75, 0x01, // Report Size (1) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x95, 0x06, // Report Count (6) 0x75, 0x01, // Report Size (1) 0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0x01, // Usage (Generic Desktop Controls) 0x09, 0x30, // Usage (X) 0x75, 0x10, // Report Size (16) 0x95, 0x01, // Report Count (1) 0xA4, // Push 0x55, 0x0D, // Unit Exponent (-3) 0x65, 0x33, // Unit (System: English, Length: Inch) 0x36, 0x00, 0x00, // Physical Minimum (0) 0x46, 0x99, 0x28, // Physical Maximum, (10393) 0x16, 0x00, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x0F, // Logical Maximum (4095) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x09, 0x31, // Usage (Y) 0x16, 0x00, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x0F, // Logical Maximum (4095) 0x36, 0x00, 0x00, // Physical Minimum (0) 0x46, 0xAF, 0x19, // Physical Maximum (6575) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0xB4, // Pop 0xC0, // End Collection 0xC0, // End Collection 0x05, 0x01, // Usage Page (Generic Desktop Ctrls) 0x09, 0x01, // Usage (Pointer) 0xA1, 0x01, // Collection (Application) 0x85, 0x01, // Report ID (1) 0x09, 0x01, // Usage (Pointer) 0xA1, 0x00, // Collection (Physical) 0x05, 0x09, // Usage Page (Button) 0x19, 0x01, // Usage Minimum (1) 0x29, 0x02, // Usage Maximum (2) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x95, 0x02, // Report Count (2) 0x75, 0x01, // Report Size (1) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x95, 0x01, // Report Count (1) 0x75, 0x06, // Report Size (6) 0x81, 0x01, // Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0x01, // Usage Page (Generic Desktop Ctrls) 0x09, 0x30, // Usage (X) 0x09, 0x31, // Usage (Y) 0x16, 0x00, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x0F, // Logical Maximum (4095) 0x36, 0x00, 0x00, // Physical Minimum (0) 0x46, 0xFF, 0x0F, // Physical Maximum (4095) 0x66, 0x00, 0x00, // Unit (None) 0x75, 0x10, // Report Size (16) 0x95, 0x02, // Report Count (2) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0xC0, // End Collection 0xC0, // End Collection 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined) 0x09, 0x01, // Usage (Pointer) 0xA1, 0x01, // Collection (Application) 0x09, 0x01, // Usage (Pointer) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x85, 0x03, // Report ID (3) 0x75, 0x08, // Report Size (8) 0x95, 0x05, // Report Count (5) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined) 0x09, 0x01, // Usage (Pointer) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x05, // Report Count (5) 0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0xC0, // End Collection 0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x04, // Usage (Touch Screen) 0xA1, 0x01, // Collection (Application) 0x85, 0x04, // Report ID (4) 0x09, 0x22, // Usage (Finger) 0xA1, 0x00, // Collection (Physical) 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,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x09, 0x32, // Usage (In Range) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x09, 0x51, // Usage (Contact Identifier) 0x75, 0x05, // Report Size (5) 0x95, 0x01, // Report Count (1) 0x16, 0x00, 0x00, // Logical Minimum (0) 0x26, 0x10, 0x00, // Logical Maximum (16) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x09, 0x47, // Usage (Confidence) 0x75, 0x01, // Report Size (1) 0x95, 0x01, // Report Count (1) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0x01, // Usage Page (Generic Desktop Ctrls) 0x09, 0x30, // Usage (X) 0x75, 0x10, // Report Size (16) 0x95, 0x01, // Report Count (1) 0x55, 0x0D, // Unit Exponent (-3) 0x65, 0x33, // Unit (System: English, Length: Inch) 0x35, 0x00, // Physical Minimum (0) 0x46, 0x60, 0x17, // Physical Maximum (5984) 0x26, 0xFF, 0x0F, // Logical Maximum (4095) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x09, 0x31, // Usage (Y) 0x75, 0x10, // Report Size (16) 0x95, 0x01, // Report Count (1) 0x55, 0x0D, // Report Exponent (-3) 0x65, 0x33, // Unit (System: English, Length: Inch) 0x35, 0x00, // Physical Minimum (0) 0x46, 0x26, 0x0e, // Physical Maximum (3622) 0x26, 0xFF, 0x0F, // Logical Maximum (4095) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x55, // Usage (Max Contact Points) 0x25, 0x08, // Logical Maximum (8) 0x75, 0x08, // Report Size (8) 0x95, 0x01, // Report Count (1) 0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0xC0, // End Collection 0xC0, // End Collection 0x05, 0x0D, // Usage Page (Digitizer) 0x09, 0x0E, // Usage (Configuration) 0xA1, 0x01, // Collection (Application) 0x85, 0x05, // Report ID (5) 0x09, 0x22, // Usage (Finger) 0xA1, 0x00, // Collection (Physical) 0x09, 0x52, // Usage (Device Mode) 0x09, 0x53, // Usage (Device Index) 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,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0xC0, // End Collection 0xC0 // End Collection // 322 bytes }; bool is_egalax_touchscreen_report_desc(const uint8_t* data, size_t len) { if (!data) return false; if (len != sizeof(egalax_touch_report_desc)) { return false; } return (memcmp(data, egalax_touch_report_desc, len) == 0); } zx_status_t setup_egalax_touchscreen(int fd) { if (fd < 0) return ZX_ERR_INVALID_ARGS; return ZX_OK; }