--- /dev/null
+
+OS = LINUX
+#OS = MACOSX
+#OS = WINDOWS
+
+PROG = rawhid_test
+
+# To set up Ubuntu Linux to cross compile for Windows:
+#
+# apt-get install mingw32 mingw32-binutils mingw32-runtime
+#
+# Just edit the variable above for WINDOWS, then use "make" to build rawhid.exe
+
+ifeq ($(OS), LINUX)
+TARGET = $(PROG)
+CC = gcc
+STRIP = strip
+CFLAGS = -Wall -O2 -DOS_$(OS)
+LIBS = -lusb
+else ifeq ($(OS), MACOSX)
+TARGET = $(PROG).dmg
+SDK = /Developer/SDKs/MacOSX10.5.sdk
+ARCH = -mmacosx-version-min=10.5 -arch ppc -arch i386
+CC = gcc
+STRIP = strip
+CFLAGS = -Wall -O2 -DOS_$(OS) -isysroot $(SDK) $(ARCH)
+LIBS = $(ARCH) -Wl,-syslibroot,$(SDK) -framework IOKit -framework CoreFoundation
+else ifeq ($(OS), WINDOWS)
+TARGET = $(PROG).exe
+CC = i586-mingw32msvc-gcc
+STRIP = i586-mingw32msvc-strip
+CFLAGS = -Wall -O2 -DOS_$(OS)
+LIBS = -lhid -lsetupapi
+endif
+
+OBJS = $(PROG).o hid.o
+
+
+all: $(TARGET)
+
+$(PROG): $(OBJS)
+ $(CC) -o $(PROG) $(OBJS) $(LIBS)
+ $(STRIP) $(PROG)
+
+$(PROG).exe: $(PROG)
+ cp $(PROG) $(PROG).exe
+
+$(PROG).dmg: $(PROG)
+ mkdir tmp
+ cp $(PROG) tmp
+ hdiutil create -ov -volname "Raw HID Test" -srcfolder tmp $(PROG).dmg
+
+hid.o: hid_$(OS).c hid.h
+ $(CC) $(CFLAGS) -c -o $@ $<
+
+clean:
+ rm -f *.o $(PROG) $(PROG).exe $(PROG).dmg
+ rm -rf tmp
+
--- /dev/null
+
+int rawhid_open(int max, int vid, int pid, int usage_page, int usage);
+int rawhid_recv(int num, void *buf, int len, int timeout);
+int rawhid_send(int num, void *buf, int len, int timeout);
+void rawhid_close(int num);
+
--- /dev/null
+/* Simple Raw HID functions for Linux - for use with Teensy RawHID example
+ * http://www.pjrc.com/teensy/rawhid.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * rawhid_open - open 1 or more devices
+ * rawhid_recv - receive a packet
+ * rawhid_send - send a packet
+ * rawhid_close - close a device
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above description, website URL and copyright notice and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Version 1.0: Initial Release
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <usb.h>
+
+#include "hid.h"
+
+
+// On Linux there are several options to access HID devices.
+//
+// libusb 0.1 - the only way that works well on all distributions
+// libusb 1.0 - someday will become standard on most distributions
+// hidraw driver - relatively new, not supported on many distributions (yet)
+// hiddev driver - old, ubuntu, fedora, others dropping support
+// usbfs - low level usb API: http://www.kernel.org/doc/htmldocs/usb.html#usbfs
+//
+// This code uses libusb 0.1, which is well supported on all linux distributions
+// and very stable and widely used by many programs. libusb 0.1 only provides a
+// simple synchronous interface, basically the same as this code needs. However,
+// if you want non-blocking I/O, libusb 0.1 simply does not provide that. There
+// is also no kernel-level buffering, so performance is poor.
+//
+// UPDATE: As of November 2011, hidraw support seems to be working well in all
+// major linux distributions. Embedded and "small" distros, used on ARM boards,
+// routers and embedded hardware stil seem to omit the hidraw driver.
+//
+// The hidraw driver is a great solution. However, it has only been supported
+// by relatively recent (in 2009) kernels. Here is a quick survey of the status
+// of hidraw support in various distributions as of Sept 2009:
+//
+// Fedora 11: works, kernel 2.6.29.4
+// Mandiva 2009.1: works, kernel 2.6.29.1
+// Ubuntu 9.10-alpha6: works, kernel 2.6.31
+// Ubuntu 9.04: sysfs attrs chain broken (hidraw root only), 2.6.28 kernel
+// openSUSE 11.1: sysfs attrs chain broken (hidraw root only), 2.6.27.7 kernel
+// Debian Live, Lenny 5.0.2: sysfs attrs chain broken (hidraw root only), 2.6.26
+// SimplyMEPIS 8.0.10: sysfs attrs chain broken (hidraw root only), 2.6.27
+// Mint 7: sysfs attrs chain broken (hidraw root only), 2.6.28 kernel
+// Gentoo 2008.0-r1: sysfs attrs chain broken (hidraw root only), 2.6.24 kernel
+// Centos 5: no hidraw or hiddev devices, 2.6.18 kernel
+// Slitaz 2.0: no hidraw devices (has hiddev), 2.6.25.5 kernel
+// Puppy 4.3: no hidraw devices (has hiddev), 2.6.30.5 kernel
+// Damn Small 4.4.10: (would not boot)
+// Gentoo 10.0-test20090926: (would not boot)
+// PCLinuxOS 2009.2: (would not boot)
+// Slackware: (no live cd available? www.slackware-live.org dead)
+
+
+
+#define printf(...) // comment this out for lots of info
+
+
+// a list of all opened HID devices, so the caller can
+// simply refer to them by number
+typedef struct hid_struct hid_t;
+static hid_t *first_hid = NULL;
+static hid_t *last_hid = NULL;
+struct hid_struct {
+ usb_dev_handle *usb;
+ int open;
+ int iface;
+ int ep_in;
+ int ep_out;
+ struct hid_struct *prev;
+ struct hid_struct *next;
+};
+
+
+// private functions, not intended to be used from outside this file
+static void add_hid(hid_t *h);
+static hid_t * get_hid(int num);
+static void free_all_hid(void);
+static void hid_close(hid_t *hid);
+static int hid_parse_item(uint32_t *val, uint8_t **data, const uint8_t *end);
+
+
+// rawhid_recv - receive a packet
+// Inputs:
+// num = device to receive from (zero based)
+// buf = buffer to receive packet
+// len = buffer's size
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes received, or -1 on error
+//
+int rawhid_recv(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+ int r;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+ r = usb_interrupt_read(hid->usb, hid->ep_in, buf, len, timeout);
+ if (r >= 0) return r;
+ if (r == -110) return 0; // timeout
+ return -1;
+}
+
+// rawhid_send - send a packet
+// Inputs:
+// num = device to transmit to (zero based)
+// buf = buffer containing packet to send
+// len = number of bytes to transmit
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes sent, or -1 on error
+//
+int rawhid_send(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+ if (hid->ep_out) {
+ return usb_interrupt_write(hid->usb, hid->ep_out, buf, len, timeout);
+ } else {
+ return usb_control_msg(hid->usb, 0x21, 9, 0, hid->iface, buf, len, timeout);
+ }
+}
+
+// rawhid_open - open 1 or more devices
+//
+// Inputs:
+// max = maximum number of devices to open
+// vid = Vendor ID, or -1 if any
+// pid = Product ID, or -1 if any
+// usage_page = top level usage page, or -1 if any
+// usage = top level usage number, or -1 if any
+// Output:
+// actual number of devices opened
+//
+int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
+{
+ struct usb_bus *bus;
+ struct usb_device *dev;
+ struct usb_interface *iface;
+ struct usb_interface_descriptor *desc;
+ struct usb_endpoint_descriptor *ep;
+ usb_dev_handle *u;
+ uint8_t buf[1024], *p;
+ int i, n, len, tag, ep_in, ep_out, count=0, claimed;
+ uint32_t val=0, parsed_usage, parsed_usage_page;
+ hid_t *hid;
+
+ if (first_hid) free_all_hid();
+ printf("rawhid_open, max=%d\n", max);
+ if (max < 1) return 0;
+ usb_init();
+ usb_find_busses();
+ usb_find_devices();
+ for (bus = usb_get_busses(); bus; bus = bus->next) {
+ for (dev = bus->devices; dev; dev = dev->next) {
+ if (vid > 0 && dev->descriptor.idVendor != vid) continue;
+ if (pid > 0 && dev->descriptor.idProduct != pid) continue;
+ if (!dev->config) continue;
+ if (dev->config->bNumInterfaces < 1) continue;
+ printf("device: vid=%04X, pic=%04X, with %d iface\n",
+ dev->descriptor.idVendor,
+ dev->descriptor.idProduct,
+ dev->config->bNumInterfaces);
+ iface = dev->config->interface;
+ u = NULL;
+ claimed = 0;
+ for (i=0; i<dev->config->bNumInterfaces && iface; i++, iface++) {
+ desc = iface->altsetting;
+ if (!desc) continue;
+ printf(" type %d, %d, %d\n", desc->bInterfaceClass,
+ desc->bInterfaceSubClass, desc->bInterfaceProtocol);
+ if (desc->bInterfaceClass != 3) continue;
+ if (desc->bInterfaceSubClass != 0) continue;
+ if (desc->bInterfaceProtocol != 0) continue;
+ ep = desc->endpoint;
+ ep_in = ep_out = 0;
+ for (n = 0; n < desc->bNumEndpoints; n++, ep++) {
+ if (ep->bEndpointAddress & 0x80) {
+ if (!ep_in) ep_in = ep->bEndpointAddress & 0x7F;
+ printf(" IN endpoint %d\n", ep_in);
+ } else {
+ if (!ep_out) ep_out = ep->bEndpointAddress;
+ printf(" OUT endpoint %d\n", ep_out);
+ }
+ }
+ if (!ep_in) continue;
+ if (!u) {
+ u = usb_open(dev);
+ if (!u) {
+ printf(" unable to open device\n");
+ break;
+ }
+ }
+ printf(" hid interface (generic)\n");
+ if (usb_get_driver_np(u, i, (char *)buf, sizeof(buf)) >= 0) {
+ printf(" in use by driver \"%s\"\n", buf);
+ if (usb_detach_kernel_driver_np(u, i) < 0) {
+ printf(" unable to detach from kernel\n");
+ continue;
+ }
+ }
+ if (usb_claim_interface(u, i) < 0) {
+ printf(" unable claim interface %d\n", i);
+ continue;
+ }
+ len = usb_control_msg(u, 0x81, 6, 0x2200, i, (char *)buf, sizeof(buf), 250);
+ printf(" descriptor, len=%d\n", len);
+ if (len < 2) {
+ usb_release_interface(u, i);
+ continue;
+ }
+ p = buf;
+ parsed_usage_page = parsed_usage = 0;
+ while ((tag = hid_parse_item(&val, &p, buf + len)) >= 0) {
+ printf(" tag: %X, val %X\n", tag, val);
+ if (tag == 4) parsed_usage_page = val;
+ if (tag == 8) parsed_usage = val;
+ if (parsed_usage_page && parsed_usage) break;
+ }
+ if ((!parsed_usage_page) || (!parsed_usage) ||
+ (usage_page > 0 && parsed_usage_page != usage_page) ||
+ (usage > 0 && parsed_usage != usage)) {
+ usb_release_interface(u, i);
+ continue;
+ }
+ hid = (struct hid_struct *)malloc(sizeof(struct hid_struct));
+ if (!hid) {
+ usb_release_interface(u, i);
+ continue;
+ }
+ hid->usb = u;
+ hid->iface = i;
+ hid->ep_in = ep_in;
+ hid->ep_out = ep_out;
+ hid->open = 1;
+ add_hid(hid);
+ claimed++;
+ count++;
+ if (count >= max) return count;
+ }
+ if (u && !claimed) usb_close(u);
+ }
+ }
+ return count;
+}
+
+
+// rawhid_close - close a device
+//
+// Inputs:
+// num = device to close (zero based)
+// Output
+// (nothing)
+//
+void rawhid_close(int num)
+{
+ hid_t *hid;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return;
+ hid_close(hid);
+}
+
+// Chuck Robey wrote a real HID report parser
+// (chuckr@telenix.org) chuckr@chuckr.org
+// http://people.freebsd.org/~chuckr/code/python/uhidParser-0.2.tbz
+// this tiny thing only needs to extract the top-level usage page
+// and usage, and even then is may not be truly correct, but it does
+// work with the Teensy Raw HID example.
+static int hid_parse_item(uint32_t *val, uint8_t **data, const uint8_t *end)
+{
+ const uint8_t *p = *data;
+ uint8_t tag;
+ int table[4] = {0, 1, 2, 4};
+ int len;
+
+ if (p >= end) return -1;
+ if (p[0] == 0xFE) {
+ // long item, HID 1.11, 6.2.2.3, page 27
+ if (p + 5 >= end || p + p[1] >= end) return -1;
+ tag = p[2];
+ *val = 0;
+ len = p[1] + 5;
+ } else {
+ // short item, HID 1.11, 6.2.2.2, page 26
+ tag = p[0] & 0xFC;
+ len = table[p[0] & 0x03];
+ if (p + len + 1 >= end) return -1;
+ switch (p[0] & 0x03) {
+ case 3: *val = p[1] | (p[2] << 8) | (p[3] << 16) | (p[4] << 24); break;
+ case 2: *val = p[1] | (p[2] << 8); break;
+ case 1: *val = p[1]; break;
+ case 0: *val = 0; break;
+ }
+ }
+ *data += len + 1;
+ return tag;
+}
+
+
+static void add_hid(hid_t *h)
+{
+ if (!first_hid || !last_hid) {
+ first_hid = last_hid = h;
+ h->next = h->prev = NULL;
+ return;
+ }
+ last_hid->next = h;
+ h->prev = last_hid;
+ h->next = NULL;
+ last_hid = h;
+}
+
+
+static hid_t * get_hid(int num)
+{
+ hid_t *p;
+ for (p = first_hid; p && num > 0; p = p->next, num--) ;
+ return p;
+}
+
+
+static void free_all_hid(void)
+{
+ hid_t *p, *q;
+
+ for (p = first_hid; p; p = p->next) {
+ hid_close(p);
+ }
+ p = first_hid;
+ while (p) {
+ q = p;
+ p = p->next;
+ free(q);
+ }
+ first_hid = last_hid = NULL;
+}
+
+
+static void hid_close(hid_t *hid)
+{
+ hid_t *p;
+ int others=0;
+
+ usb_release_interface(hid->usb, hid->iface);
+ for (p = first_hid; p; p = p->next) {
+ if (p->open && p->usb == hid->usb) others++;
+ }
+ if (!others) usb_close(hid->usb);
+ hid->usb = NULL;
+}
+
+
+
--- /dev/null
+/* Simple Raw HID functions for Linux - for use with Teensy RawHID example
+ * http://www.pjrc.com/teensy/rawhid.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * rawhid_open - open 1 or more devices
+ * rawhid_recv - receive a packet
+ * rawhid_send - send a packet
+ * rawhid_close - close a device
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above description, website URL and copyright notice and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Version 1.0: Initial Release
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <IOKit/IOKitLib.h>
+#include <IOKit/hid/IOHIDLib.h>
+
+#include "hid.h"
+
+#define BUFFER_SIZE 64
+
+#define printf(...) // comment this out to get lots of info printed
+
+
+// a list of all opened HID devices, so the caller can
+// simply refer to them by number
+typedef struct hid_struct hid_t;
+typedef struct buffer_struct buffer_t;
+static hid_t *first_hid = NULL;
+static hid_t *last_hid = NULL;
+struct hid_struct {
+ IOHIDDeviceRef ref;
+ int open;
+ uint8_t buffer[BUFFER_SIZE];
+ buffer_t *first_buffer;
+ buffer_t *last_buffer;
+ struct hid_struct *prev;
+ struct hid_struct *next;
+};
+struct buffer_struct {
+ struct buffer_struct *next;
+ uint32_t len;
+ uint8_t buf[BUFFER_SIZE];
+};
+
+// private functions, not intended to be used from outside this file
+static void add_hid(hid_t *);
+static hid_t * get_hid(int);
+static void free_all_hid(void);
+static void hid_close(hid_t *);
+static void attach_callback(void *, IOReturn, void *, IOHIDDeviceRef);
+static void detach_callback(void *, IOReturn, void *hid_mgr, IOHIDDeviceRef dev);
+static void timeout_callback(CFRunLoopTimerRef, void *);
+static void input_callback(void *, IOReturn, void *, IOHIDReportType,
+ uint32_t, uint8_t *, CFIndex);
+
+
+
+// rawhid_recv - receive a packet
+// Inputs:
+// num = device to receive from (zero based)
+// buf = buffer to receive packet
+// len = buffer's size
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes received, or -1 on error
+//
+int rawhid_recv(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+ buffer_t *b;
+ CFRunLoopTimerRef timer=NULL;
+ CFRunLoopTimerContext context;
+ int ret=0, timeout_occurred=0;
+
+ if (len < 1) return 0;
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+ if ((b = hid->first_buffer) != NULL) {
+ if (len > b->len) len = b->len;
+ memcpy(buf, b->buf, len);
+ hid->first_buffer = b->next;
+ free(b);
+ return len;
+ }
+ memset(&context, 0, sizeof(context));
+ context.info = &timeout_occurred;
+ timer = CFRunLoopTimerCreate(NULL, CFAbsoluteTimeGetCurrent() +
+ (double)timeout / 1000.0, 0, 0, 0, timeout_callback, &context);
+ CFRunLoopAddTimer(CFRunLoopGetCurrent(), timer, kCFRunLoopDefaultMode);
+ while (1) {
+ CFRunLoopRun();
+ if ((b = hid->first_buffer) != NULL) {
+ if (len > b->len) len = b->len;
+ memcpy(buf, b->buf, len);
+ hid->first_buffer = b->next;
+ free(b);
+ ret = len;
+ break;
+ }
+ if (!hid->open) {
+ printf("rawhid_recv, device not open\n");
+ ret = -1;
+ break;
+ }
+ if (timeout_occurred) break;
+ }
+ CFRunLoopTimerInvalidate(timer);
+ CFRelease(timer);
+ return ret;
+}
+
+static void input_callback(void *context, IOReturn ret, void *sender,
+ IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len)
+{
+ buffer_t *n;
+ hid_t *hid;
+
+ printf("input_callback\n");
+ if (ret != kIOReturnSuccess || len < 1) return;
+ hid = context;
+ if (!hid || hid->ref != sender) return;
+ n = (buffer_t *)malloc(sizeof(buffer_t));
+ if (!n) return;
+ if (len > BUFFER_SIZE) len = BUFFER_SIZE;
+ memcpy(n->buf, data, len);
+ n->len = len;
+ n->next = NULL;
+ if (!hid->first_buffer || !hid->last_buffer) {
+ hid->first_buffer = hid->last_buffer = n;
+ } else {
+ hid->last_buffer->next = n;
+ hid->last_buffer = n;
+ }
+ CFRunLoopStop(CFRunLoopGetCurrent());
+}
+
+static void timeout_callback(CFRunLoopTimerRef timer, void *info)
+{
+ printf("timeout_callback\n");
+ *(int *)info = 1;
+ CFRunLoopStop(CFRunLoopGetCurrent());
+}
+
+
+void output_callback(void *context, IOReturn ret, void *sender,
+ IOHIDReportType type, uint32_t id, uint8_t *data, CFIndex len)
+{
+ printf("output_callback, r=%d\n", ret);
+ if (ret == kIOReturnSuccess) {
+ *(int *)context = len;
+ } else {
+ // timeout if not success?
+ *(int *)context = 0;
+ }
+ CFRunLoopStop(CFRunLoopGetCurrent());
+}
+
+
+// rawhid_send - send a packet
+// Inputs:
+// num = device to transmit to (zero based)
+// buf = buffer containing packet to send
+// len = number of bytes to transmit
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes sent, or -1 on error
+//
+int rawhid_send(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+ int result=-100;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+#if 1
+ #warning "Send timeout not implemented on MACOSX"
+ IOReturn ret = IOHIDDeviceSetReport(hid->ref, kIOHIDReportTypeOutput, 0, buf, len);
+ result = (ret == kIOReturnSuccess) ? len : -1;
+#endif
+#if 0
+ // No matter what I tried this never actually sends an output
+ // report and output_callback never gets called. Why??
+ // Did I miss something? This is exactly the same params as
+ // the sync call that works. Is it an Apple bug?
+ // (submitted to Apple on 22-sep-2009, problem ID 7245050)
+ //
+ IOHIDDeviceScheduleWithRunLoop(hid->ref, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+ // should already be scheduled with run loop by attach_callback,
+ // sadly this doesn't make any difference either way
+
+ // could this be related?
+ // http://lists.apple.com/archives/usb/2008/Aug/msg00021.html
+ //
+ IOHIDDeviceSetReportWithCallback(hid->ref, kIOHIDReportTypeOutput,
+ 0, buf, len, (double)timeout / 1000.0, output_callback, &result);
+ while (1) {
+ printf("enter run loop (send)\n");
+ CFRunLoopRun();
+ printf("leave run loop (send)\n");
+ if (result > -100) break;
+ if (!hid->open) {
+ result = -1;
+ break;
+ }
+ }
+#endif
+ return result;
+}
+
+
+// rawhid_open - open 1 or more devices
+//
+// Inputs:
+// max = maximum number of devices to open
+// vid = Vendor ID, or -1 if any
+// pid = Product ID, or -1 if any
+// usage_page = top level usage page, or -1 if any
+// usage = top level usage number, or -1 if any
+// Output:
+// actual number of devices opened
+//
+int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
+{
+ static IOHIDManagerRef hid_manager=NULL;
+ CFMutableDictionaryRef dict;
+ CFNumberRef num;
+ IOReturn ret;
+ hid_t *p;
+ int count=0;
+
+ if (first_hid) free_all_hid();
+ printf("rawhid_open, max=%d\n", max);
+ if (max < 1) return 0;
+ // Start the HID Manager
+ // http://developer.apple.com/technotes/tn2007/tn2187.html
+ if (!hid_manager) {
+ hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
+ if (hid_manager == NULL || CFGetTypeID(hid_manager) != IOHIDManagerGetTypeID()) {
+ if (hid_manager) CFRelease(hid_manager);
+ return 0;
+ }
+ }
+ if (vid > 0 || pid > 0 || usage_page > 0 || usage > 0) {
+ // Tell the HID Manager what type of devices we want
+ dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
+ &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+ if (!dict) return 0;
+ if (vid > 0) {
+ num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &vid);
+ CFDictionarySetValue(dict, CFSTR(kIOHIDVendorIDKey), num);
+ CFRelease(num);
+ }
+ if (pid > 0) {
+ num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &pid);
+ CFDictionarySetValue(dict, CFSTR(kIOHIDProductIDKey), num);
+ CFRelease(num);
+ }
+ if (usage_page > 0) {
+ num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage_page);
+ CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsagePageKey), num);
+ CFRelease(num);
+ }
+ if (usage > 0) {
+ num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage);
+ CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsageKey), num);
+ CFRelease(num);
+ }
+ IOHIDManagerSetDeviceMatching(hid_manager, dict);
+ CFRelease(dict);
+ } else {
+ IOHIDManagerSetDeviceMatching(hid_manager, NULL);
+ }
+ // set up a callbacks for device attach & detach
+ IOHIDManagerScheduleWithRunLoop(hid_manager, CFRunLoopGetCurrent(),
+ kCFRunLoopDefaultMode);
+ IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, attach_callback, NULL);
+ IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
+ ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
+ if (ret != kIOReturnSuccess) {
+ IOHIDManagerUnscheduleFromRunLoop(hid_manager,
+ CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+ CFRelease(hid_manager);
+ return 0;
+ }
+ printf("run loop\n");
+ // let it do the callback for all devices
+ while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
+ // count up how many were added by the callback
+ for (p = first_hid; p; p = p->next) count++;
+ return count;
+}
+
+
+// rawhid_close - close a device
+//
+// Inputs:
+// num = device to close (zero based)
+// Output
+// (nothing)
+//
+void rawhid_close(int num)
+{
+ hid_t *hid;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return;
+ hid_close(hid);
+ hid->open = 0;
+}
+
+
+static void add_hid(hid_t *h)
+{
+ if (!first_hid || !last_hid) {
+ first_hid = last_hid = h;
+ h->next = h->prev = NULL;
+ return;
+ }
+ last_hid->next = h;
+ h->prev = last_hid;
+ h->next = NULL;
+ last_hid = h;
+}
+
+
+static hid_t * get_hid(int num)
+{
+ hid_t *p;
+ for (p = first_hid; p && num > 0; p = p->next, num--) ;
+ return p;
+}
+
+
+static void free_all_hid(void)
+{
+ hid_t *p, *q;
+
+ for (p = first_hid; p; p = p->next) {
+ hid_close(p);
+ }
+ p = first_hid;
+ while (p) {
+ q = p;
+ p = p->next;
+ free(q);
+ }
+ first_hid = last_hid = NULL;
+}
+
+
+static void hid_close(hid_t *hid)
+{
+ if (!hid || !hid->open || !hid->ref) return;
+ IOHIDDeviceUnscheduleFromRunLoop(hid->ref, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode);
+ IOHIDDeviceClose(hid->ref, kIOHIDOptionsTypeNone);
+ hid->ref = NULL;
+}
+
+static void detach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
+{
+ hid_t *p;
+
+ printf("detach callback\n");
+ for (p = first_hid; p; p = p->next) {
+ if (p->ref == dev) {
+ p->open = 0;
+ CFRunLoopStop(CFRunLoopGetCurrent());
+ return;
+ }
+ }
+}
+
+
+static void attach_callback(void *context, IOReturn r, void *hid_mgr, IOHIDDeviceRef dev)
+{
+ struct hid_struct *h;
+
+ printf("attach callback\n");
+ if (IOHIDDeviceOpen(dev, kIOHIDOptionsTypeNone) != kIOReturnSuccess) return;
+ h = (hid_t *)malloc(sizeof(hid_t));
+ if (!h) return;
+ memset(h, 0, sizeof(hid_t));
+ IOHIDDeviceScheduleWithRunLoop(dev, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+ IOHIDDeviceRegisterInputReportCallback(dev, h->buffer, sizeof(h->buffer),
+ input_callback, h);
+ h->ref = dev;
+ h->open = 1;
+ add_hid(h);
+}
+
+
--- /dev/null
+/* Simple Raw HID functions for Windows - for use with Teensy RawHID example
+ * http://www.pjrc.com/teensy/rawhid.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * rawhid_open - open 1 or more devices
+ * rawhid_recv - receive a packet
+ * rawhid_send - send a packet
+ * rawhid_close - close a device
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above description, website URL and copyright notice and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Version 1.0: Initial Release
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <windows.h>
+#include <setupapi.h>
+#include <ddk/hidsdi.h>
+#include <ddk/hidclass.h>
+
+#include "hid.h"
+
+
+// a list of all opened HID devices, so the caller can
+// simply refer to them by number
+typedef struct hid_struct hid_t;
+static hid_t *first_hid = NULL;
+static hid_t *last_hid = NULL;
+struct hid_struct {
+ HANDLE handle;
+ int open;
+ struct hid_struct *prev;
+ struct hid_struct *next;
+};
+static HANDLE rx_event=NULL;
+static HANDLE tx_event=NULL;
+static CRITICAL_SECTION rx_mutex;
+static CRITICAL_SECTION tx_mutex;
+
+
+// private functions, not intended to be used from outside this file
+static void add_hid(hid_t *h);
+static hid_t * get_hid(int num);
+static void free_all_hid(void);
+static void hid_close(hid_t *hid);
+void print_win32_err(void);
+
+
+
+
+// rawhid_recv - receive a packet
+// Inputs:
+// num = device to receive from (zero based)
+// buf = buffer to receive packet
+// len = buffer's size
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes received, or -1 on error
+//
+int rawhid_recv(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+ unsigned char tmpbuf[516];
+ OVERLAPPED ov;
+ DWORD n, r;
+
+ if (sizeof(tmpbuf) < len + 1) return -1;
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+ EnterCriticalSection(&rx_mutex);
+ ResetEvent(&rx_event);
+ memset(&ov, 0, sizeof(ov));
+ ov.hEvent = rx_event;
+ if (!ReadFile(hid->handle, tmpbuf, len + 1, NULL, &ov)) {
+ if (GetLastError() != ERROR_IO_PENDING) goto return_error;
+ r = WaitForSingleObject(rx_event, timeout);
+ if (r == WAIT_TIMEOUT) goto return_timeout;
+ if (r != WAIT_OBJECT_0) goto return_error;
+ }
+ if (!GetOverlappedResult(hid->handle, &ov, &n, FALSE)) goto return_error;
+ LeaveCriticalSection(&rx_mutex);
+ if (n <= 0) return -1;
+ n--;
+ if (n > len) n = len;
+ memcpy(buf, tmpbuf + 1, n);
+ return n;
+return_timeout:
+ CancelIo(hid->handle);
+ LeaveCriticalSection(&rx_mutex);
+ return 0;
+return_error:
+ print_win32_err();
+ LeaveCriticalSection(&rx_mutex);
+ return -1;
+}
+
+// rawhid_send - send a packet
+// Inputs:
+// num = device to transmit to (zero based)
+// buf = buffer containing packet to send
+// len = number of bytes to transmit
+// timeout = time to wait, in milliseconds
+// Output:
+// number of bytes sent, or -1 on error
+//
+int rawhid_send(int num, void *buf, int len, int timeout)
+{
+ hid_t *hid;
+ unsigned char tmpbuf[516];
+ OVERLAPPED ov;
+ DWORD n, r;
+
+ if (sizeof(tmpbuf) < len + 1) return -1;
+ hid = get_hid(num);
+ if (!hid || !hid->open) return -1;
+ EnterCriticalSection(&tx_mutex);
+ ResetEvent(&tx_event);
+ memset(&ov, 0, sizeof(ov));
+ ov.hEvent = tx_event;
+ tmpbuf[0] = 0;
+ memcpy(tmpbuf + 1, buf, len);
+ if (!WriteFile(hid->handle, tmpbuf, len + 1, NULL, &ov)) {
+ if (GetLastError() != ERROR_IO_PENDING) goto return_error;
+ r = WaitForSingleObject(tx_event, timeout);
+ if (r == WAIT_TIMEOUT) goto return_timeout;
+ if (r != WAIT_OBJECT_0) goto return_error;
+ }
+ if (!GetOverlappedResult(hid->handle, &ov, &n, FALSE)) goto return_error;
+ LeaveCriticalSection(&tx_mutex);
+ if (n <= 0) return -1;
+ return n - 1;
+return_timeout:
+ CancelIo(hid->handle);
+ LeaveCriticalSection(&tx_mutex);
+ return 0;
+return_error:
+ print_win32_err();
+ LeaveCriticalSection(&tx_mutex);
+ return -1;
+}
+
+// rawhid_open - open 1 or more devices
+//
+// Inputs:
+// max = maximum number of devices to open
+// vid = Vendor ID, or -1 if any
+// pid = Product ID, or -1 if any
+// usage_page = top level usage page, or -1 if any
+// usage = top level usage number, or -1 if any
+// Output:
+// actual number of devices opened
+//
+int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
+{
+ GUID guid;
+ HDEVINFO info;
+ DWORD index=0, reqd_size;
+ SP_DEVICE_INTERFACE_DATA iface;
+ SP_DEVICE_INTERFACE_DETAIL_DATA *details;
+ HIDD_ATTRIBUTES attrib;
+ PHIDP_PREPARSED_DATA hid_data;
+ HIDP_CAPS capabilities;
+ HANDLE h;
+ BOOL ret;
+ hid_t *hid;
+ int count=0;
+
+ if (first_hid) free_all_hid();
+ if (max < 1) return 0;
+ if (!rx_event) {
+ rx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
+ tx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
+ InitializeCriticalSection(&rx_mutex);
+ InitializeCriticalSection(&tx_mutex);
+ }
+ HidD_GetHidGuid(&guid);
+ info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+ if (info == INVALID_HANDLE_VALUE) return 0;
+ for (index=0; 1 ;index++) {
+ iface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+ ret = SetupDiEnumDeviceInterfaces(info, NULL, &guid, index, &iface);
+ if (!ret) return count;
+ SetupDiGetInterfaceDeviceDetail(info, &iface, NULL, 0, &reqd_size, NULL);
+ details = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(reqd_size);
+ if (details == NULL) continue;
+
+ memset(details, 0, reqd_size);
+ details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
+ ret = SetupDiGetDeviceInterfaceDetail(info, &iface, details,
+ reqd_size, NULL, NULL);
+ if (!ret) {
+ free(details);
+ continue;
+ }
+ h = CreateFile(details->DevicePath, GENERIC_READ|GENERIC_WRITE,
+ FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
+ free(details);
+ if (h == INVALID_HANDLE_VALUE) continue;
+ attrib.Size = sizeof(HIDD_ATTRIBUTES);
+ ret = HidD_GetAttributes(h, &attrib);
+ //printf("vid: %4x\n", attrib.VendorID);
+ if (!ret || (vid > 0 && attrib.VendorID != vid) ||
+ (pid > 0 && attrib.ProductID != pid) ||
+ !HidD_GetPreparsedData(h, &hid_data)) {
+ CloseHandle(h);
+ continue;
+ }
+ if (!HidP_GetCaps(hid_data, &capabilities) ||
+ (usage_page > 0 && capabilities.UsagePage != usage_page) ||
+ (usage > 0 && capabilities.Usage != usage)) {
+ HidD_FreePreparsedData(hid_data);
+ CloseHandle(h);
+ continue;
+ }
+ HidD_FreePreparsedData(hid_data);
+ hid = (struct hid_struct *)malloc(sizeof(struct hid_struct));
+ if (!hid) {
+ CloseHandle(h);
+ continue;
+ }
+ hid->handle = h;
+ hid->open = 1;
+ add_hid(hid);
+ count++;
+ if (count >= max) return count;
+ }
+ return count;
+}
+
+
+// rawhid_close - close a device
+//
+// Inputs:
+// num = device to close (zero based)
+// Output
+// (nothing)
+//
+void rawhid_close(int num)
+{
+ hid_t *hid;
+
+ hid = get_hid(num);
+ if (!hid || !hid->open) return;
+ hid_close(hid);
+}
+
+
+
+static void add_hid(hid_t *h)
+{
+ if (!first_hid || !last_hid) {
+ first_hid = last_hid = h;
+ h->next = h->prev = NULL;
+ return;
+ }
+ last_hid->next = h;
+ h->prev = last_hid;
+ h->next = NULL;
+ last_hid = h;
+}
+
+
+static hid_t * get_hid(int num)
+{
+ hid_t *p;
+ for (p = first_hid; p && num > 0; p = p->next, num--) ;
+ return p;
+}
+
+
+static void free_all_hid(void)
+{
+ hid_t *p, *q;
+
+ for (p = first_hid; p; p = p->next) {
+ hid_close(p);
+ }
+ p = first_hid;
+ while (p) {
+ q = p;
+ p = p->next;
+ free(q);
+ }
+ first_hid = last_hid = NULL;
+}
+
+
+static void hid_close(hid_t *hid)
+{
+ CloseHandle(hid->handle);
+ hid->handle = NULL;
+}
+
+
+void print_win32_err(void)
+{
+ char buf[256];
+ DWORD err;
+
+ err = GetLastError();
+ FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
+ 0, buf, sizeof(buf), NULL);
+ printf("err %ld: %s\n", err, buf);
+}
+
+
+
+
+
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+#include <sys/ioctl.h>
+#include <termios.h>
+#elif defined(OS_WINDOWS)
+#include <conio.h>
+#endif
+
+#include "hid.h"
+
+
+static char get_keystroke(void);
+
+
+int main()
+{
+ int i, r, num;
+ char c, buf[64];
+
+ // C-based example is 16C0:0480:FFAB:0200
+ r = rawhid_open(1, 0x16C0, 0x0480, 0xFFAB, 0x0200);
+ if (r <= 0) {
+ // Arduino-based example is 16C0:0486:FFAB:0200
+ r = rawhid_open(1, 0x16C0, 0x0486, 0xFFAB, 0x0200);
+ if (r <= 0) {
+ printf("no rawhid device found\n");
+ return -1;
+ }
+ }
+ printf("found rawhid device\n");
+
+ while (1) {
+ // check if any Raw HID packet has arrived
+ num = rawhid_recv(0, buf, 64, 220);
+ if (num < 0) {
+ printf("\nerror reading, device went offline\n");
+ rawhid_close(0);
+ return 0;
+ }
+ if (num > 0) {
+ printf("\nrecv %d bytes:\n", num);
+ for (i=0; i<num; i++) {
+ printf("%02X ", buf[i] & 255);
+ if (i % 16 == 15 && i < num-1) printf("\n");
+ }
+ printf("\n");
+ }
+ // check if any input on stdin
+ while ((c = get_keystroke()) >= 32) {
+ printf("\ngot key '%c', sending...\n", c);
+ buf[0] = c;
+ for (i=1; i<64; i++) {
+ buf[i] = 0;
+ }
+ rawhid_send(0, buf, 64, 100);
+ }
+ }
+}
+
+#if defined(OS_LINUX) || defined(OS_MACOSX)
+// Linux (POSIX) implementation of _kbhit().
+// Morgan McGuire, morgan@cs.brown.edu
+static int _kbhit() {
+ static const int STDIN = 0;
+ static int initialized = 0;
+ int bytesWaiting;
+
+ if (!initialized) {
+ // Use termios to turn off line buffering
+ struct termios term;
+ tcgetattr(STDIN, &term);
+ term.c_lflag &= ~ICANON;
+ tcsetattr(STDIN, TCSANOW, &term);
+ setbuf(stdin, NULL);
+ initialized = 1;
+ }
+ ioctl(STDIN, FIONREAD, &bytesWaiting);
+ return bytesWaiting;
+}
+static char _getch(void) {
+ char c;
+ if (fread(&c, 1, 1, stdin) < 1) return 0;
+ return c;
+}
+#endif
+
+
+static char get_keystroke(void)
+{
+ if (_kbhit()) {
+ char c = _getch();
+ if (c >= 32) return c;
+ }
+ return 0;
+}
+
+
--- /dev/null
+# Hey Emacs, this is a -*- makefile -*-
+#----------------------------------------------------------------------------
+# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
+#
+# Released to the Public Domain
+#
+# Additional material for this makefile was written by:
+# Peter Fleury
+# Tim Henigan
+# Colin O'Flynn
+# Reiner Patommel
+# Markus Pfaff
+# Sander Pool
+# Frederik Rouleau
+# Carlos Lamas
+#
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF.
+#
+# make extcoff = Convert ELF to AVR Extended COFF.
+#
+# make program = Download the hex file to the device, using avrdude.
+# Please customize the avrdude settings below first!
+#
+# make debug = Start either simulavr or avarice as specified for debugging,
+# with avr-gdb or avr-insight as the front end for debugging.
+#
+# make filename.s = Just compile filename.c into the assembler code only.
+#
+# make filename.i = Create a preprocessed source file for use in submitting
+# bug reports to the GCC project.
+#
+# To rebuild project do "make clean" then "make all".
+#----------------------------------------------------------------------------
+
+
+# Target file name (without extension).
+TARGET = example
+
+
+# List C source files here. (C dependencies are automatically generated.)
+SRC = $(TARGET).c \
+ usb_rawhid.c \
+ analog.c
+
+
+# MCU name, you MUST set this to match the board you are using
+# type "make clean" after changing this, so all files will be rebuilt
+#
+#MCU = at90usb162 # Teensy 1.0
+MCU = atmega32u4 # Teensy 2.0
+#MCU = at90usb646 # Teensy++ 1.0
+#MCU = at90usb1286 # Teensy++ 2.0
+
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+F_CPU = 16000000
+
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+
+# Object files directory
+# To put object files in current directory, use a dot (.), do NOT make
+# this an empty or blank macro!
+OBJDIR = .
+
+
+# List C++ source files here. (C dependencies are automatically generated.)
+CPPSRC =
+
+
+# List Assembler source files here.
+# Make them always end in a capital .S. Files ending in a lowercase .s
+# will not be considered source files but generated files (assembler
+# output from the compiler), and will be deleted upon "make clean"!
+# Even though the DOS/Win* filesystem matches both .s and .S the same,
+# it will preserve the spelling of the filenames, and gcc itself does
+# care about how the name is spelled on its command-line.
+ASRC =
+
+
+# Optimization level, can be [0, 1, 2, 3, s].
+# 0 = turn off optimization. s = optimize for size.
+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+
+# Debugging format.
+# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
+# AVR Studio 4.10 requires dwarf-2.
+# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
+DEBUG = dwarf-2
+
+
+# List any extra directories to look for include files here.
+# Each directory must be seperated by a space.
+# Use forward slashes for directory separators.
+# For a directory that has spaces, enclose it in quotes.
+EXTRAINCDIRS =
+
+
+# Compiler flag to set the C Standard level.
+# c89 = "ANSI" C
+# gnu89 = c89 plus GCC extensions
+# c99 = ISO C99 standard (not yet fully implemented)
+# gnu99 = c99 plus GCC extensions
+CSTANDARD = -std=gnu99
+
+
+# Place -D or -U options here for C sources
+CDEFS = -DF_CPU=$(F_CPU)UL
+
+
+# Place -D or -U options here for ASM sources
+ADEFS = -DF_CPU=$(F_CPU)
+
+
+# Place -D or -U options here for C++ sources
+CPPDEFS = -DF_CPU=$(F_CPU)UL
+#CPPDEFS += -D__STDC_LIMIT_MACROS
+#CPPDEFS += -D__STDC_CONSTANT_MACROS
+
+
+
+#---------------- Compiler Options C ----------------
+# -g*: generate debugging information
+# -O*: optimization level
+# -f...: tuning, see GCC manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns...: create assembler listing
+CFLAGS = -g$(DEBUG)
+CFLAGS += $(CDEFS)
+CFLAGS += -O$(OPT)
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -ffunction-sections
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+#CFLAGS += -mshort-calls
+#CFLAGS += -fno-unit-at-a-time
+#CFLAGS += -Wundef
+#CFLAGS += -Wunreachable-code
+#CFLAGS += -Wsign-compare
+CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+CFLAGS += $(CSTANDARD)
+
+
+#---------------- Compiler Options C++ ----------------
+# -g*: generate debugging information
+# -O*: optimization level
+# -f...: tuning, see GCC manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns...: create assembler listing
+CPPFLAGS = -g$(DEBUG)
+CPPFLAGS += $(CPPDEFS)
+CPPFLAGS += -O$(OPT)
+CPPFLAGS += -funsigned-char
+CPPFLAGS += -funsigned-bitfields
+CPPFLAGS += -fpack-struct
+CPPFLAGS += -fshort-enums
+CPPFLAGS += -fno-exceptions
+CPPFLAGS += -Wall
+CPPFLAGS += -Wundef
+#CPPFLAGS += -mshort-calls
+#CPPFLAGS += -fno-unit-at-a-time
+#CPPFLAGS += -Wstrict-prototypes
+#CPPFLAGS += -Wunreachable-code
+#CPPFLAGS += -Wsign-compare
+CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
+CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
+#CPPFLAGS += $(CSTANDARD)
+
+
+#---------------- Assembler Options ----------------
+# -Wa,...: tell GCC to pass this to the assembler.
+# -adhlns: create listing
+# -gstabs: have the assembler create line number information; note that
+# for use in COFF files, additional information about filenames
+# and function names needs to be present in the assembler source
+# files -- see avr-libc docs [FIXME: not yet described there]
+# -listing-cont-lines: Sets the maximum number of continuation lines of hex
+# dump that will be displayed for a given single line of source input.
+ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100
+
+
+#---------------- Library Options ----------------
+# Minimalistic printf version
+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires MATH_LIB = -lm below)
+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
+
+# If this is left blank, then it will use the Standard printf version.
+PRINTF_LIB =
+#PRINTF_LIB = $(PRINTF_LIB_MIN)
+#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
+
+
+# Minimalistic scanf version
+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
+
+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
+
+# If this is left blank, then it will use the Standard scanf version.
+SCANF_LIB =
+#SCANF_LIB = $(SCANF_LIB_MIN)
+#SCANF_LIB = $(SCANF_LIB_FLOAT)
+
+
+MATH_LIB = -lm
+
+
+# List any extra directories to look for libraries here.
+# Each directory must be seperated by a space.
+# Use forward slashes for directory separators.
+# For a directory that has spaces, enclose it in quotes.
+EXTRALIBDIRS =
+
+
+
+#---------------- External Memory Options ----------------
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# used for variables (.data/.bss) and heap (malloc()).
+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
+
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),
+# only used for heap (malloc()).
+#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
+
+EXTMEMOPTS =
+
+
+
+#---------------- Linker Options ----------------
+# -Wl,...: tell GCC to pass this to linker.
+# -Map: create map file
+# --cref: add cross reference to map file
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
+LDFLAGS += -Wl,--relax
+LDFLAGS += -Wl,--gc-sections
+LDFLAGS += $(EXTMEMOPTS)
+LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
+#LDFLAGS += -T linker_script.x
+
+
+
+#---------------- Programming Options (avrdude) ----------------
+
+# Programming hardware
+# Type: avrdude -c ?
+# to get a full listing.
+#
+AVRDUDE_PROGRAMMER = stk500v2
+
+# com1 = serial port. Use lpt1 to connect to parallel port.
+AVRDUDE_PORT = com1 # programmer connected to serial device
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+
+# Uncomment the following if you want avrdude's erase cycle counter.
+# Note that this counter needs to be initialized first using -Yn,
+# see avrdude manual.
+#AVRDUDE_ERASE_COUNTER = -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_NO_VERIFY = -V
+
+# Increase verbosity level. Please use this when submitting bug
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
+# to submit bug reports.
+#AVRDUDE_VERBOSE = -v -v
+
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
+
+
+
+#---------------- Debugging Options ----------------
+
+# For simulavr only - target MCU frequency.
+DEBUG_MFREQ = $(F_CPU)
+
+# Set the DEBUG_UI to either gdb or insight.
+# DEBUG_UI = gdb
+DEBUG_UI = insight
+
+# Set the debugging back-end to either avarice, simulavr.
+DEBUG_BACKEND = avarice
+#DEBUG_BACKEND = simulavr
+
+# GDB Init Filename.
+GDBINIT_FILE = __avr_gdbinit
+
+# When using avarice settings for the JTAG
+JTAG_DEV = /dev/com1
+
+# Debugging port used to communicate between GDB / avarice / simulavr.
+DEBUG_PORT = 4242
+
+# Debugging host used to communicate between GDB / avarice / simulavr, normally
+# just set to localhost unless doing some sort of crazy debugging when
+# avarice is running on a different computer.
+DEBUG_HOST = localhost
+
+
+
+#============================================================================
+
+
+# Define programs and commands.
+SHELL = sh
+CC = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+AR = avr-ar rcs
+NM = avr-nm
+AVRDUDE = avrdude
+REMOVE = rm -f
+REMOVEDIR = rm -rf
+COPY = cp
+WINSHELL = cmd
+
+
+# Define Messages
+# English
+MSG_ERRORS_NONE = Errors: none
+MSG_BEGIN = -------- begin --------
+MSG_END = -------- end --------
+MSG_SIZE_BEFORE = Size before:
+MSG_SIZE_AFTER = Size after:
+MSG_COFF = Converting to AVR COFF:
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
+MSG_FLASH = Creating load file for Flash:
+MSG_EEPROM = Creating load file for EEPROM:
+MSG_EXTENDED_LISTING = Creating Extended Listing:
+MSG_SYMBOL_TABLE = Creating Symbol Table:
+MSG_LINKING = Linking:
+MSG_COMPILING = Compiling C:
+MSG_COMPILING_CPP = Compiling C++:
+MSG_ASSEMBLING = Assembling:
+MSG_CLEANING = Cleaning project:
+MSG_CREATING_LIBRARY = Creating library:
+
+
+
+
+# Define all object files.
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
+
+# Define all listing files.
+LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
+
+
+# Compiler flags to generate dependency files.
+GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
+
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
+ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+
+
+# Default target.
+all: begin gccversion sizebefore build sizeafter end
+
+# Change the build target to build a HEX file or a library.
+build: elf hex eep lss sym
+#build: lib
+
+
+elf: $(TARGET).elf
+hex: $(TARGET).hex
+eep: $(TARGET).eep
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+LIBNAME=lib$(TARGET).a
+lib: $(LIBNAME)
+
+
+
+# Eye candy.
+# AVR Studio 3.x does not check make's exit code but relies on
+# the following magic strings to be generated by the compile job.
+begin:
+ @echo
+ @echo $(MSG_BEGIN)
+
+end:
+ @echo $(MSG_END)
+ @echo
+
+
+# Display size of file.
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+#ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(TARGET).elf
+
+sizebefore:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+sizeafter:
+ @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
+ 2>/dev/null; echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+ @$(CC) --version
+
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+# Generate avr-gdb config/init file which does the following:
+# define the reset signal, load the target file, connect to target, and set
+# a breakpoint at main().
+gdb-config:
+ @$(REMOVE) $(GDBINIT_FILE)
+ @echo define reset >> $(GDBINIT_FILE)
+ @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
+ @echo end >> $(GDBINIT_FILE)
+ @echo file $(TARGET).elf >> $(GDBINIT_FILE)
+ @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
+ifeq ($(DEBUG_BACKEND),simulavr)
+ @echo load >> $(GDBINIT_FILE)
+endif
+ @echo break main >> $(GDBINIT_FILE)
+
+debug: gdb-config $(TARGET).elf
+ifeq ($(DEBUG_BACKEND), avarice)
+ @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
+ @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
+ $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
+ @$(WINSHELL) /c pause
+
+else
+ @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
+ $(DEBUG_MFREQ) --port $(DEBUG_PORT)
+endif
+ @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
+
+
+
+
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
+COFFCONVERT = $(OBJCOPY) --debugging
+COFFCONVERT += --change-section-address .data-0x800000
+COFFCONVERT += --change-section-address .bss-0x800000
+COFFCONVERT += --change-section-address .noinit-0x800000
+COFFCONVERT += --change-section-address .eeprom-0x810000
+
+
+
+coff: $(TARGET).elf
+ @echo
+ @echo $(MSG_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
+
+
+extcoff: $(TARGET).elf
+ @echo
+ @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
+ $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
+
+
+
+# Create final output files (.hex, .eep) from ELF output file.
+%.hex: %.elf
+ @echo
+ @echo $(MSG_FLASH) $@
+ $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+%.eep: %.elf
+ @echo
+ @echo $(MSG_EEPROM) $@
+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+ --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
+
+# Create extended listing file from ELF output file.
+%.lss: %.elf
+ @echo
+ @echo $(MSG_EXTENDED_LISTING) $@
+ $(OBJDUMP) -h -S -z $< > $@
+
+# Create a symbol table from ELF output file.
+%.sym: %.elf
+ @echo
+ @echo $(MSG_SYMBOL_TABLE) $@
+ $(NM) -n $< > $@
+
+
+
+# Create library from object files.
+.SECONDARY : $(TARGET).a
+.PRECIOUS : $(OBJ)
+%.a: $(OBJ)
+ @echo
+ @echo $(MSG_CREATING_LIBRARY) $@
+ $(AR) $@ $(OBJ)
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+ @echo
+ @echo $(MSG_LINKING) $@
+ $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+$(OBJDIR)/%.o : %.c
+ @echo
+ @echo $(MSG_COMPILING) $<
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create object files from C++ source files.
+$(OBJDIR)/%.o : %.cpp
+ @echo
+ @echo $(MSG_COMPILING_CPP) $<
+ $(CC) -c $(ALL_CPPFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C++ source files.
+%.s : %.cpp
+ $(CC) -S $(ALL_CPPFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+$(OBJDIR)/%.o : %.S
+ @echo
+ @echo $(MSG_ASSEMBLING) $<
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+# Create preprocessed source for use in sending a bug report.
+%.i : %.c
+ $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
+
+
+# Target: clean project.
+clean: begin clean_list end
+
+clean_list :
+ @echo
+ @echo $(MSG_CLEANING)
+ $(REMOVE) $(TARGET).hex
+ $(REMOVE) $(TARGET).eep
+ $(REMOVE) $(TARGET).cof
+ $(REMOVE) $(TARGET).elf
+ $(REMOVE) $(TARGET).map
+ $(REMOVE) $(TARGET).sym
+ $(REMOVE) $(TARGET).lss
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)
+ $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)
+ $(REMOVE) $(SRC:.c=.s)
+ $(REMOVE) $(SRC:.c=.d)
+ $(REMOVE) $(SRC:.c=.i)
+ $(REMOVEDIR) .dep
+
+
+# Create object files directory
+$(shell mkdir $(OBJDIR) 2>/dev/null)
+
+
+# Include the dependency files.
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion \
+build elf hex eep lss sym coff extcoff \
+clean clean_list program debug gdb-config
--- /dev/null
+// Simple analog to digitial conversion, similar to Wiring/Arduino
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+
+#include "analog.h"
+
+
+#if defined(__AVR_ATmega32U4__)
+
+uint8_t analog_reference_config_val = 0x40;
+
+static const uint8_t PROGMEM adc_mapping[] = {
+ 0, 1, 4, 5, 6, 7, 13, 12, 11, 10, 9, 8
+};
+
+int analogRead(uint8_t pin)
+{
+ uint8_t low, adc;
+
+ if (pin >= 12) return 0;
+ adc = pgm_read_byte(adc_mapping + pin);
+ if (adc < 8) {
+ DIDR0 |= (1 << adc);
+ ADCSRB = 0;
+ ADMUX = analog_reference_config_val | adc;
+ } else {
+ adc -= 8;
+ DIDR2 |= (1 << adc);
+ ADCSRB = (1<<MUX5);
+ ADMUX = analog_reference_config_val | adc;
+ }
+ ADCSRA = (1<<ADSC)|(1<<ADEN)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0);
+ while (ADCSRA & (1<<ADSC)) ;
+ low = ADCL;
+ return (ADCH << 8) | low;
+}
+
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+
+uint8_t analog_reference_config_val = 0x40;
+
+int analogRead(uint8_t pin)
+{
+ uint8_t low;
+
+ if (pin >= 8) return 0;
+ DIDR0 |= (1 << pin);
+ ADMUX = analog_reference_config_val | pin;
+ ADCSRA = (1<<ADSC)|(1<<ADEN)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0);
+ while (ADCSRA & (1<<ADSC)) ;
+ low = ADCL;
+ return (ADCH << 8) | low;
+}
+
+#endif
+
--- /dev/null
+#ifndef _analog_h_included__
+#define _analog_h_included__
+
+#include <stdint.h>
+
+#if defined(__AVR_AT90USB162__)
+#define analogRead(pin) (0)
+#define analogReference(ref)
+#else
+int16_t analogRead(uint8_t pin);
+extern uint8_t analog_reference_config_val;
+#define analogReference(ref) (analog_reference_config_val = (ref) << 6)
+#endif
+
+#endif
--- /dev/null
+/* Teensy RawHID example
+ * http://www.pjrc.com/teensy/rawhid.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above description, website URL and copyright notice and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "usb_rawhid.h"
+#include "analog.h"
+
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+
+volatile uint8_t do_output=0;
+uint8_t buffer[64];
+
+int main(void)
+{
+ int8_t r;
+ uint8_t i;
+ uint16_t val, count=0;
+
+ // set for 16 MHz clock
+ CPU_PRESCALE(0);
+
+ // Initialize the USB, and then wait for the host to set configuration.
+ // If the Teensy is powered without a PC connected to the USB port,
+ // this will wait forever.
+ usb_init();
+ while (!usb_configured()) /* wait */ ;
+
+ // Wait an extra second for the PC's operating system to load drivers
+ // and do whatever it does to actually be ready for input
+ _delay_ms(1000);
+
+ // Configure timer 0 to generate a timer overflow interrupt every
+ // 256*1024 clock cycles, or approx 61 Hz when using 16 MHz clock
+ TCCR0A = 0x00;
+ TCCR0B = 0x05;
+ TIMSK0 = (1<<TOIE0);
+
+ while (1) {
+ // if received data, do something with it
+ r = usb_rawhid_recv(buffer, 0);
+ if (r > 0) {
+ // output 4 bits to D0, D1, D2, D3 pins
+ DDRD = 0x0F;
+ PORTD = (PORTD & 0xF0) | (buffer[0] & 0x0F);
+ // ignore the other 63.5 bytes....
+ }
+ // if time to send output, transmit something interesting
+ if (do_output) {
+ do_output = 0;
+ // send a packet, first 2 bytes 0xABCD
+ buffer[0] = 0xAB;
+ buffer[1] = 0xCD;
+ // put A/D measurements into next 24 bytes
+ for (i=0; i<12; i++) {
+ val = analogRead(i);
+ buffer[i * 2 + 2] = val >> 8;
+ buffer[i * 2 + 3] = val & 255;
+ }
+ // most of the packet filled with zero
+ for (i=26; i<62; i++) {
+ buffer[i] = 0;
+ }
+ // put a count in the last 2 bytes
+ buffer[62] = count >> 8;
+ buffer[63] = count & 255;
+ // send the packet
+ usb_rawhid_send(buffer, 50);
+ count++;
+ }
+ }
+}
+
+// This interrupt routine is run approx 61 times per second.
+ISR(TIMER0_OVF_vect)
+{
+ static uint8_t count=0;
+
+ // set the do_output variable every 2 seconds
+ if (++count > 122) {
+ count = 0;
+ do_output = 1;
+ }
+}
+
+
+
--- /dev/null
+/* Teensy RawHID example
+ * http://www.pjrc.com/teensy/rawhid.html
+ * Copyright (c) 2009 PJRC.COM, LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above description, website URL and copyright notice and this permission
+ * notice shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Version 1.0: Initial Release
+// Version 1.1: fixed bug in analog
+
+#define USB_PRIVATE_INCLUDE
+#include "usb_rawhid.h"
+
+/**************************************************************************
+ *
+ * Configurable Options
+ *
+ **************************************************************************/
+
+// You can change these to give your code its own name.
+#define STR_MANUFACTURER L"MfgName"
+#define STR_PRODUCT L"Teensy Raw HID Example"
+
+// These 4 numbers identify your device. Set these to
+// something that is (hopefully) not used by any others!
+#define VENDOR_ID 0x16C0
+#define PRODUCT_ID 0x0480
+#define RAWHID_USAGE_PAGE 0xFFAB // recommended: 0xFF00 to 0xFFFF
+#define RAWHID_USAGE 0x0200 // recommended: 0x0100 to 0xFFFF
+
+// These determine the bandwidth that will be allocated
+// for your communication. You do not need to use it
+// all, but allocating more than necessary means reserved
+// bandwidth is no longer available to other USB devices.
+#define RAWHID_TX_SIZE 64 // transmit packet size
+#define RAWHID_TX_INTERVAL 2 // max # of ms between transmit packets
+#define RAWHID_RX_SIZE 64 // receive packet size
+#define RAWHID_RX_INTERVAL 8 // max # of ms between receive packets
+
+
+/**************************************************************************
+ *
+ * Endpoint Buffer Configuration
+ *
+ **************************************************************************/
+
+#define ENDPOINT0_SIZE 32
+#define RAWHID_INTERFACE 0
+#define RAWHID_TX_ENDPOINT 1
+#define RAWHID_RX_ENDPOINT 2
+
+#if defined(__AVR_AT90USB162__)
+#define RAWHID_TX_BUFFER EP_SINGLE_BUFFER
+#define RAWHID_RX_BUFFER EP_SINGLE_BUFFER
+#else
+#define RAWHID_TX_BUFFER EP_DOUBLE_BUFFER
+#define RAWHID_RX_BUFFER EP_DOUBLE_BUFFER
+#endif
+
+static const uint8_t PROGMEM endpoint_config_table[] = {
+ 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(RAWHID_TX_SIZE) | RAWHID_TX_BUFFER,
+ 1, EP_TYPE_INTERRUPT_OUT, EP_SIZE(RAWHID_RX_SIZE) | RAWHID_RX_BUFFER,
+ 0,
+ 0
+};
+
+
+/**************************************************************************
+ *
+ * Descriptor Data
+ *
+ **************************************************************************/
+
+// Descriptors are the data that your computer reads when it auto-detects
+// this USB device (called "enumeration" in USB lingo). The most commonly
+// changed items are editable at the top of this file. Changing things
+// in here should only be done by those who've read chapter 9 of the USB
+// spec and relevant portions of any USB class specifications!
+
+
+static uint8_t PROGMEM device_descriptor[] = {
+ 18, // bLength
+ 1, // bDescriptorType
+ 0x00, 0x02, // bcdUSB
+ 0, // bDeviceClass
+ 0, // bDeviceSubClass
+ 0, // bDeviceProtocol
+ ENDPOINT0_SIZE, // bMaxPacketSize0
+ LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
+ LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
+ 0x00, 0x01, // bcdDevice
+ 1, // iManufacturer
+ 2, // iProduct
+ 0, // iSerialNumber
+ 1 // bNumConfigurations
+};
+
+static uint8_t PROGMEM rawhid_hid_report_desc[] = {
+ 0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),
+ 0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
+ 0xA1, 0x01, // Collection 0x01
+ 0x75, 0x08, // report size = 8 bits
+ 0x15, 0x00, // logical minimum = 0
+ 0x26, 0xFF, 0x00, // logical maximum = 255
+ 0x95, RAWHID_TX_SIZE, // report count
+ 0x09, 0x01, // usage
+ 0x81, 0x02, // Input (array)
+ 0x95, RAWHID_RX_SIZE, // report count
+ 0x09, 0x02, // usage
+ 0x91, 0x02, // Output (array)
+ 0xC0 // end collection
+};
+
+
+#define CONFIG1_DESC_SIZE (9+9+9+7+7)
+#define RAWHID_HID_DESC_OFFSET (9+9)
+static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
+ // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
+ 9, // bLength;
+ 2, // bDescriptorType;
+ LSB(CONFIG1_DESC_SIZE), // wTotalLength
+ MSB(CONFIG1_DESC_SIZE),
+ 1, // bNumInterfaces
+ 1, // bConfigurationValue
+ 0, // iConfiguration
+ 0xC0, // bmAttributes
+ 50, // bMaxPower
+
+ // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
+ 9, // bLength
+ 4, // bDescriptorType
+ RAWHID_INTERFACE, // bInterfaceNumber
+ 0, // bAlternateSetting
+ 2, // bNumEndpoints
+ 0x03, // bInterfaceClass (0x03 = HID)
+ 0x00, // bInterfaceSubClass (0x01 = Boot)
+ 0x00, // bInterfaceProtocol (0x01 = Keyboard)
+ 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
+ sizeof(rawhid_hid_report_desc), // wDescriptorLength
+ 0,
+ // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
+ 7, // bLength
+ 5, // bDescriptorType
+ RAWHID_TX_ENDPOINT | 0x80, // bEndpointAddress
+ 0x03, // bmAttributes (0x03=intr)
+ RAWHID_TX_SIZE, 0, // wMaxPacketSize
+ RAWHID_TX_INTERVAL, // bInterval
+ // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
+ 7, // bLength
+ 5, // bDescriptorType
+ RAWHID_RX_ENDPOINT, // bEndpointAddress
+ 0x03, // bmAttributes (0x03=intr)
+ RAWHID_RX_SIZE, 0, // wMaxPacketSize
+ RAWHID_RX_INTERVAL // bInterval
+};
+
+// If you're desperate for a little extra code memory, these strings
+// can be completely removed if iManufacturer, iProduct, iSerialNumber
+// in the device desciptor are changed to zeros.
+struct usb_string_descriptor_struct {
+ uint8_t bLength;
+ uint8_t bDescriptorType;
+ int16_t wString[];
+};
+static struct usb_string_descriptor_struct PROGMEM string0 = {
+ 4,
+ 3,
+ {0x0409}
+};
+static struct usb_string_descriptor_struct PROGMEM string1 = {
+ sizeof(STR_MANUFACTURER),
+ 3,
+ STR_MANUFACTURER
+};
+static struct usb_string_descriptor_struct PROGMEM string2 = {
+ sizeof(STR_PRODUCT),
+ 3,
+ STR_PRODUCT
+};
+
+// This table defines which descriptor data is sent for each specific
+// request from the host (in wValue and wIndex).
+static struct descriptor_list_struct {
+ uint16_t wValue;
+ uint16_t wIndex;
+ const uint8_t *addr;
+ uint8_t length;
+} PROGMEM descriptor_list[] = {
+ {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
+ {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
+ {0x2200, RAWHID_INTERFACE, rawhid_hid_report_desc, sizeof(rawhid_hid_report_desc)},
+ {0x2100, RAWHID_INTERFACE, config1_descriptor+RAWHID_HID_DESC_OFFSET, 9},
+ {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)}
+};
+#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
+
+
+/**************************************************************************
+ *
+ * Variables - these are the only non-stack RAM usage
+ *
+ **************************************************************************/
+
+// zero when we are not configured, non-zero when enumerated
+static volatile uint8_t usb_configuration=0;
+
+// these are a more reliable timeout than polling the
+// frame counter (UDFNUML)
+static volatile uint8_t rx_timeout_count=0;
+static volatile uint8_t tx_timeout_count=0;
+
+
+
+/**************************************************************************
+ *
+ * Public Functions - these are the API intended for the user
+ *
+ **************************************************************************/
+
+
+// initialize USB
+void usb_init(void)
+{
+ HW_CONFIG();
+ USB_FREEZE(); // enable USB
+ PLL_CONFIG(); // config PLL
+ while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
+ USB_CONFIG(); // start USB clock
+ UDCON = 0; // enable attach resistor
+ usb_configuration = 0;
+ UDIEN = (1<<EORSTE)|(1<<SOFE);
+ sei();
+}
+
+// return 0 if the USB is not configured, or the configuration
+// number selected by the HOST
+uint8_t usb_configured(void)
+{
+ return usb_configuration;
+}
+
+
+// receive a packet, with timeout
+int8_t usb_rawhid_recv(uint8_t *buffer, uint8_t timeout)
+{
+ uint8_t intr_state;
+
+ // if we're not online (enumerated and configured), error
+ if (!usb_configuration) return -1;
+ intr_state = SREG;
+ cli();
+ rx_timeout_count = timeout;
+ UENUM = RAWHID_RX_ENDPOINT;
+ // wait for data to be available in the FIFO
+ while (1) {
+ if (UEINTX & (1<<RWAL)) break;
+ SREG = intr_state;
+ if (rx_timeout_count == 0) return 0;
+ if (!usb_configuration) return -1;
+ intr_state = SREG;
+ cli();
+ UENUM = RAWHID_RX_ENDPOINT;
+ }
+ // read bytes from the FIFO
+ #if (RAWHID_RX_SIZE >= 64)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 63)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 62)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 61)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 60)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 59)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 58)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 57)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 56)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 55)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 54)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 53)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 52)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 51)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 50)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 49)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 48)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 47)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 46)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 45)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 44)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 43)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 42)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 41)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 40)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 39)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 38)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 37)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 36)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 35)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 34)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 33)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 32)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 31)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 30)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 29)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 28)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 27)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 26)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 25)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 24)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 23)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 22)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 21)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 20)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 19)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 18)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 17)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 16)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 15)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 14)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 13)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 12)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 11)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 10)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 9)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 8)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 7)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 6)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 5)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 4)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 3)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 2)
+ *buffer++ = UEDATX;
+ #endif
+ #if (RAWHID_RX_SIZE >= 1)
+ *buffer++ = UEDATX;
+ #endif
+ // release the buffer
+ UEINTX = 0x6B;
+ SREG = intr_state;
+ return RAWHID_RX_SIZE;
+}
+
+// send a packet, with timeout
+int8_t usb_rawhid_send(const uint8_t *buffer, uint8_t timeout)
+{
+ uint8_t intr_state;
+
+ // if we're not online (enumerated and configured), error
+ if (!usb_configuration) return -1;
+ intr_state = SREG;
+ cli();
+ tx_timeout_count = timeout;
+ UENUM = RAWHID_TX_ENDPOINT;
+ // wait for the FIFO to be ready to accept data
+ while (1) {
+ if (UEINTX & (1<<RWAL)) break;
+ SREG = intr_state;
+ if (tx_timeout_count == 0) return 0;
+ if (!usb_configuration) return -1;
+ intr_state = SREG;
+ cli();
+ UENUM = RAWHID_TX_ENDPOINT;
+ }
+ // write bytes from the FIFO
+ #if (RAWHID_TX_SIZE >= 64)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 63)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 62)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 61)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 60)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 59)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 58)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 57)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 56)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 55)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 54)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 53)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 52)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 51)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 50)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 49)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 48)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 47)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 46)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 45)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 44)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 43)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 42)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 41)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 40)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 39)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 38)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 37)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 36)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 35)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 34)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 33)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 32)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 31)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 30)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 29)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 28)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 27)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 26)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 25)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 24)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 23)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 22)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 21)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 20)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 19)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 18)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 17)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 16)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 15)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 14)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 13)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 12)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 11)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 10)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 9)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 8)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 7)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 6)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 5)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 4)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 3)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 2)
+ UEDATX = *buffer++;
+ #endif
+ #if (RAWHID_TX_SIZE >= 1)
+ UEDATX = *buffer++;
+ #endif
+ // transmit it now
+ UEINTX = 0x3A;
+ SREG = intr_state;
+ return RAWHID_TX_SIZE;
+}
+
+
+
+
+/**************************************************************************
+ *
+ * Private Functions - not intended for general user consumption....
+ *
+ **************************************************************************/
+
+
+#if (GCC_VERSION >= 40300) && (GCC_VERSION < 40302)
+#error "Buggy GCC 4.3.0 compiler, please upgrade!"
+#endif
+
+
+// USB Device Interrupt - handle all device-level events
+// the transmit buffer flushing is triggered by the start of frame
+//
+ISR(USB_GEN_vect)
+{
+ uint8_t intbits, t;
+
+ intbits = UDINT;
+ UDINT = 0;
+ if (intbits & (1<<EORSTI)) {
+ UENUM = 0;
+ UECONX = 1;
+ UECFG0X = EP_TYPE_CONTROL;
+ UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
+ UEIENX = (1<<RXSTPE);
+ usb_configuration = 0;
+ }
+ if ((intbits & (1<<SOFI)) && usb_configuration) {
+ t = rx_timeout_count;
+ if (t) rx_timeout_count = --t;
+ t = tx_timeout_count;
+ if (t) tx_timeout_count = --t;
+ }
+}
+
+
+
+// Misc functions to wait for ready and send/receive packets
+static inline void usb_wait_in_ready(void)
+{
+ while (!(UEINTX & (1<<TXINI))) ;
+}
+static inline void usb_send_in(void)
+{
+ UEINTX = ~(1<<TXINI);
+}
+static inline void usb_wait_receive_out(void)
+{
+ while (!(UEINTX & (1<<RXOUTI))) ;
+}
+static inline void usb_ack_out(void)
+{
+ UEINTX = ~(1<<RXOUTI);
+}
+
+
+
+// USB Endpoint Interrupt - endpoint 0 is handled here. The
+// other endpoints are manipulated by the user-callable
+// functions, and the start-of-frame interrupt.
+//
+ISR(USB_COM_vect)
+{
+ uint8_t intbits;
+ const uint8_t *list;
+ const uint8_t *cfg;
+ uint8_t i, n, len, en;
+ uint8_t bmRequestType;
+ uint8_t bRequest;
+ uint16_t wValue;
+ uint16_t wIndex;
+ uint16_t wLength;
+ uint16_t desc_val;
+ const uint8_t *desc_addr;
+ uint8_t desc_length;
+
+ UENUM = 0;
+ intbits = UEINTX;
+ if (intbits & (1<<RXSTPI)) {
+ bmRequestType = UEDATX;
+ bRequest = UEDATX;
+ wValue = UEDATX;
+ wValue |= (UEDATX << 8);
+ wIndex = UEDATX;
+ wIndex |= (UEDATX << 8);
+ wLength = UEDATX;
+ wLength |= (UEDATX << 8);
+ UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
+ if (bRequest == GET_DESCRIPTOR) {
+ list = (const uint8_t *)descriptor_list;
+ for (i=0; ; i++) {
+ if (i >= NUM_DESC_LIST) {
+ UECONX = (1<<STALLRQ)|(1<<EPEN); //stall
+ return;
+ }
+ desc_val = pgm_read_word(list);
+ if (desc_val != wValue) {
+ list += sizeof(struct descriptor_list_struct);
+ continue;
+ }
+ list += 2;
+ desc_val = pgm_read_word(list);
+ if (desc_val != wIndex) {
+ list += sizeof(struct descriptor_list_struct)-2;
+ continue;
+ }
+ list += 2;
+ desc_addr = (const uint8_t *)pgm_read_word(list);
+ list += 2;
+ desc_length = pgm_read_byte(list);
+ break;
+ }
+ len = (wLength < 256) ? wLength : 255;
+ if (len > desc_length) len = desc_length;
+ do {
+ // wait for host ready for IN packet
+ do {
+ i = UEINTX;
+ } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
+ if (i & (1<<RXOUTI)) return; // abort
+ // send IN packet
+ n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
+ for (i = n; i; i--) {
+ UEDATX = pgm_read_byte(desc_addr++);
+ }
+ len -= n;
+ usb_send_in();
+ } while (len || n == ENDPOINT0_SIZE);
+ return;
+ }
+ if (bRequest == SET_ADDRESS) {
+ usb_send_in();
+ usb_wait_in_ready();
+ UDADDR = wValue | (1<<ADDEN);
+ return;
+ }
+ if (bRequest == SET_CONFIGURATION && bmRequestType == 0) {
+ usb_configuration = wValue;
+ usb_send_in();
+ cfg = endpoint_config_table;
+ for (i=1; i<5; i++) {
+ UENUM = i;
+ en = pgm_read_byte(cfg++);
+ UECONX = en;
+ if (en) {
+ UECFG0X = pgm_read_byte(cfg++);
+ UECFG1X = pgm_read_byte(cfg++);
+ }
+ }
+ UERST = 0x1E;
+ UERST = 0;
+ return;
+ }
+ if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
+ usb_wait_in_ready();
+ UEDATX = usb_configuration;
+ usb_send_in();
+ return;
+ }
+
+ if (bRequest == GET_STATUS) {
+ usb_wait_in_ready();
+ i = 0;
+ if (bmRequestType == 0x82) {
+ UENUM = wIndex;
+ if (UECONX & (1<<STALLRQ)) i = 1;
+ UENUM = 0;
+ }
+ UEDATX = i;
+ UEDATX = 0;
+ usb_send_in();
+ return;
+ }
+ if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE)
+ && bmRequestType == 0x02 && wValue == 0) {
+ i = wIndex & 0x7F;
+ if (i >= 1 && i <= MAX_ENDPOINT) {
+ usb_send_in();
+ UENUM = i;
+ if (bRequest == SET_FEATURE) {
+ UECONX = (1<<STALLRQ)|(1<<EPEN);
+ } else {
+ UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN);
+ UERST = (1 << i);
+ UERST = 0;
+ }
+ return;
+ }
+ }
+ if (wIndex == RAWHID_INTERFACE) {
+ if (bmRequestType == 0xA1 && bRequest == HID_GET_REPORT) {
+ len = RAWHID_TX_SIZE;
+ do {
+ // wait for host ready for IN packet
+ do {
+ i = UEINTX;
+ } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
+ if (i & (1<<RXOUTI)) return; // abort
+ // send IN packet
+ n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
+ for (i = n; i; i--) {
+ // just send zeros
+ UEDATX = 0;
+ }
+ len -= n;
+ usb_send_in();
+ } while (len || n == ENDPOINT0_SIZE);
+ return;
+ }
+ if (bmRequestType == 0x21 && bRequest == HID_SET_REPORT) {
+ len = RAWHID_RX_SIZE;
+ do {
+ n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
+ usb_wait_receive_out();
+ // ignore incoming bytes
+ usb_ack_out();
+ len -= n;
+ } while (len);
+ usb_wait_in_ready();
+ usb_send_in();
+ return;
+ }
+ }
+ }
+ UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
+}
+
+
--- /dev/null
+#ifndef usb_serial_h__
+#define usb_serial_h__
+
+#include <stdint.h>
+
+void usb_init(void); // initialize everything
+uint8_t usb_configured(void); // is the USB port configured
+int8_t usb_rawhid_recv(uint8_t *buffer, uint8_t timeout); // receive a packet, with timeout
+int8_t usb_rawhid_send(const uint8_t *buffer, uint8_t timeout); // send a packet, with timeout
+
+// This file does not include the HID debug functions, so these empty
+// macros replace them with nothing, so users can compile code that
+// has calls to these functions.
+#define usb_debug_putchar(c)
+#define usb_debug_flush_output()
+
+
+// Everything below this point is only intended for usb_serial.c
+#ifdef USB_PRIVATE_INCLUDE
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+
+#define EP_TYPE_CONTROL 0x00
+#define EP_TYPE_BULK_IN 0x81
+#define EP_TYPE_BULK_OUT 0x80
+#define EP_TYPE_INTERRUPT_IN 0xC1
+#define EP_TYPE_INTERRUPT_OUT 0xC0
+#define EP_TYPE_ISOCHRONOUS_IN 0x41
+#define EP_TYPE_ISOCHRONOUS_OUT 0x40
+
+#define EP_SINGLE_BUFFER 0x02
+#define EP_DOUBLE_BUFFER 0x06
+
+#define EP_SIZE(s) ((s) > 32 ? 0x30 : \
+ ((s) > 16 ? 0x20 : \
+ ((s) > 8 ? 0x10 : \
+ 0x00)))
+
+#define MAX_ENDPOINT 4
+
+#define LSB(n) (n & 255)
+#define MSB(n) ((n >> 8) & 255)
+
+#if defined(__AVR_AT90USB162__)
+#define HW_CONFIG()
+#define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
+#define USB_CONFIG() (USBCON = (1<<USBE))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_ATmega32U4__)
+#define HW_CONFIG() (UHWCON = 0x01)
+#define PLL_CONFIG() (PLLCSR = 0x12)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB646__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x1A)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB1286__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x16)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#endif
+
+// standard control endpoint request types
+#define GET_STATUS 0
+#define CLEAR_FEATURE 1
+#define SET_FEATURE 3
+#define SET_ADDRESS 5
+#define GET_DESCRIPTOR 6
+#define GET_CONFIGURATION 8
+#define SET_CONFIGURATION 9
+#define GET_INTERFACE 10
+#define SET_INTERFACE 11
+// HID (human interface device)
+#define HID_GET_REPORT 1
+#define HID_GET_IDLE 2
+#define HID_GET_PROTOCOL 3
+#define HID_SET_REPORT 9
+#define HID_SET_IDLE 10
+#define HID_SET_PROTOCOL 11
+#endif
+#endif
projects / svn42.git / commitdiff