Diff: HID_devices/USBAbsMouse.c

Revision:

0:163560051396

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HID_devices/USBAbsMouse.c	Mon Oct 24 10:26:27 2011 +0000
@@ -0,0 +1,78 @@
+/* USBAbsMouse.c */
+
+/* USB device example: an absolute mouse */
+/* Copyright (c) 2011 ARM Limited. All rights reserved. */
+
+#include "stdint.h"
+
+#include "USBAbsMouse.h"
+
+/*
+ *  Descriptors
+ */
+
+uint8_t * USBAbsMouse::ReportDesc() {
+    static uint8_t reportDescriptor[] = {
+
+        /* Based on Appendix E.10 of "Device Class Definition for Human Interface
+           Devices (HID)" Version 1.11 and modified to use absolute coordinates and a wheel. */
+
+        USAGE_PAGE(1), 0x01,                    /* Generic Desktop */
+        USAGE(1), 0x02,                         /* Mouse */
+        COLLECTION(1), 0x01,                    /* Application*/
+        USAGE(1), 0x01,                     /* Pointer */
+        COLLECTION(1), 0x00,                /* Physical */
+
+        USAGE_PAGE(1), 0x01,            /* Generic Desktop */
+        USAGE(1), 0x30,                 /* X */
+        USAGE(1), 0x31,                 /* Y */
+        LOGICAL_MINIMUM(1), 0x00,       /* 0 */
+        LOGICAL_MAXIMUM(2), 0xff, 0x7f, /* 32767 */
+        REPORT_SIZE(1), 0x10,
+        REPORT_COUNT(1), 0x02,
+        INPUT(1), 0x02,                 /* Data, Variable, Absolute */
+
+        USAGE_PAGE(1), 0x01,            /* Generic Desktop */
+        USAGE(1), 0x38,                 /* scroll */
+        LOGICAL_MINIMUM(1), 0x81,       /* -127 */
+        LOGICAL_MAXIMUM(1), 0x7f,       /* 127 */
+        REPORT_SIZE(1), 0x08,
+        REPORT_COUNT(1), 0x01,
+        INPUT(1), 0x06,                 /* Data, Variable, Relative */
+
+        USAGE_PAGE(1), 0x09,            /* Buttons */
+        USAGE_MINIMUM(1), 0x01,
+        USAGE_MAXIMUM(1), 0x03,
+        LOGICAL_MINIMUM(1), 0x00,       /* 0 */
+        LOGICAL_MAXIMUM(1), 0x01,       /* 1 */
+        REPORT_COUNT(1), 0x03,
+        REPORT_SIZE(1), 0x01,
+        INPUT(1), 0x02,                 /* Data, Variable, Absolute */
+        REPORT_COUNT(1), 0x01,
+        REPORT_SIZE(1), 0x05,
+        INPUT(1), 0x01,                 /* Constant */
+
+        END_COLLECTION(0),
+        END_COLLECTION(0)
+    };
+    reportLength = sizeof(reportDescriptor);
+    return reportDescriptor;
+}
+
+
+bool USBAbsMouse::update(int16_t x, int16_t y, uint8_t buttons, int8_t z) {
+    HID_REPORT report;
+
+    report.data[0] = x & 0xff;
+    report.data[1] = (x >> 8) & 0xff;
+    report.data[2] = y & 0xff;
+    report.data[3] = (y >> 8) & 0xff;
+    report.data[4] = -z;
+    report.data[5] = buttons & 0x07;
+
+    report.length = 6;
+
+    return USBClass_HID_sendInputReport(EPINT_IN, &report);
+}
+
+