tmk_core/protocol/chibios/usb_main.c

   1 /*
   2  * (c) 2015 flabberast <s3+flabbergast@sdfeu.org>
   3  *
   4  * Based on the following work:
   5  *  - Guillaume Duc's raw hid example (MIT License)
   6  *    https://github.com/guiduc/usb-hid-chibios-example
   7  *  - PJRC Teensy examples (MIT License)
   8  *    https://www.pjrc.com/teensy/usb_keyboard.html
   9  *  - hasu's TMK keyboard code (GPL v2 and some code Modified BSD)
  10  *    https://github.com/tmk/tmk_keyboard/
  11  *  - ChibiOS demo code (Apache 2.0 License)
  12  *    http://www.chibios.org
  13  *
  14  * Since some GPL'd code is used, this work is licensed under
  15  * GPL v2 or later.
  16  */
  17
  18 #include "ch.h"
  19 #include "hal.h"
  20
  21 #include "usb_main.h"
  22
  23 #include "host.h"
  24 #include "debug.h"
  25 #ifdef SLEEP_LED_ENABLE
  26 #include "sleep_led.h"
  27 #include "led.h"
  28 #endif
  29
  30 /* ---------------------------------------------------------
  31  *       Global interface variables and declarations
  32  * ---------------------------------------------------------
  33  */
  34
  35 uint8_t keyboard_idle = 0;
  36 uint8_t keyboard_protocol = 1;
  37 uint16_t keyboard_led_stats = 0;
  38 volatile uint16_t keyboard_idle_count = 0;
  39 static virtual_timer_t keyboard_idle_timer;
  40 static void keyboard_idle_timer_cb(void *arg);
  41 #ifdef NKRO_ENABLE
  42 extern bool keyboard_nkro;
  43 #endif /* NKRO_ENABLE */
  44
  45 report_keyboard_t keyboard_report_sent = {{0}};
  46 #ifdef MOUSE_ENABLE
  47 report_mouse_t mouse_report_blank = {0};
  48 #endif /* MOUSE_ENABLE */
  49 #ifdef EXTRAKEY_ENABLE
  50 uint8_t extra_report_blank[3] = {0};
  51 #endif /* EXTRAKEY_ENABLE */
  52
  53 #ifdef CONSOLE_ENABLE
  54 /* The emission queue */
  55 output_queue_t console_queue;
  56 static uint8_t console_queue_buffer[CONSOLE_QUEUE_BUFFER_SIZE];
  57 static virtual_timer_t console_flush_timer;
  58 void console_queue_onotify(io_queue_t *qp);
  59 static void console_flush_cb(void *arg);
  60 #endif /* CONSOLE_ENABLE */
  61
  62 /* ---------------------------------------------------------
  63  *            Descriptors and USB driver objects
  64  * ---------------------------------------------------------
  65  */
  66
  67 /* HID specific constants */
  68 #define USB_DESCRIPTOR_HID 0x21
  69 #define USB_DESCRIPTOR_HID_REPORT 0x22
  70 #define HID_GET_REPORT 0x01
  71 #define HID_GET_IDLE 0x02
  72 #define HID_GET_PROTOCOL 0x03
  73 #define HID_SET_REPORT 0x09
  74 #define HID_SET_IDLE 0x0A
  75 #define HID_SET_PROTOCOL 0x0B
  76
  77 /* USB Device Descriptor */
  78 static const uint8_t usb_device_descriptor_data[] = {
  79   USB_DESC_DEVICE(0x0200,      // bcdUSB (1.1)
  80                   0,           // bDeviceClass (defined in later in interface)
  81                   0,           // bDeviceSubClass
  82                   0,           // bDeviceProtocol
  83                   64,          // bMaxPacketSize (64 bytes) (the driver didn't work with 32)
  84                   VENDOR_ID,   // idVendor
  85                   PRODUCT_ID,  // idProduct
  86                   DEVICE_VER,      // bcdDevice
  87                   1,           // iManufacturer
  88                   2,           // iProduct
  89                   3,           // iSerialNumber
  90                   1)           // bNumConfigurations
  91 };
  92
  93 /* Device Descriptor wrapper */
  94 static const USBDescriptor usb_device_descriptor = {
  95   sizeof usb_device_descriptor_data,
  96   usb_device_descriptor_data
  97 };
  98
  99 /*
 100  * HID Report Descriptor
 101  *
 102  * See "Device Class Definition for Human Interface Devices (HID)"
 103  * (http://www.usb.org/developers/hidpage/HID1_11.pdf) for the
 104  * detailed descrition of all the fields
 105  */
 106
 107 /* Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60 */
 108 static const uint8_t keyboard_hid_report_desc_data[] = {
 109   0x05, 0x01,                // Usage Page (Generic Desktop),
 110   0x09, 0x06,                // Usage (Keyboard),
 111   0xA1, 0x01,                // Collection (Application),
 112   0x75, 0x01,                //   Report Size (1),
 113   0x95, 0x08,                //   Report Count (8),
 114   0x05, 0x07,                //   Usage Page (Key Codes),
 115   0x19, 0xE0,                //   Usage Minimum (224),
 116   0x29, 0xE7,                //   Usage Maximum (231),
 117   0x15, 0x00,                //   Logical Minimum (0),
 118   0x25, 0x01,                //   Logical Maximum (1),
 119   0x81, 0x02,                //   Input (Data, Variable, Absolute), ;Modifier byte
 120   0x95, 0x01,                //   Report Count (1),
 121   0x75, 0x08,                //   Report Size (8),
 122   0x81, 0x03,                //   Input (Constant),                 ;Reserved byte
 123   0x95, 0x05,                //   Report Count (5),
 124   0x75, 0x01,                //   Report Size (1),
 125   0x05, 0x08,                //   Usage Page (LEDs),
 126   0x19, 0x01,                //   Usage Minimum (1),
 127   0x29, 0x05,                //   Usage Maximum (5),
 128   0x91, 0x02,                //   Output (Data, Variable, Absolute), ;LED report
 129   0x95, 0x01,                //   Report Count (1),
 130   0x75, 0x03,                //   Report Size (3),
 131   0x91, 0x03,                //   Output (Constant),                 ;LED report padding
 132   0x95, KBD_REPORT_KEYS,          //   Report Count (),
 133   0x75, 0x08,                //   Report Size (8),
 134   0x15, 0x00,                //   Logical Minimum (0),
 135   0x25, 0xFF,                //   Logical Maximum(255),
 136   0x05, 0x07,                //   Usage Page (Key Codes),
 137   0x19, 0x00,                //   Usage Minimum (0),
 138   0x29, 0xFF,                //   Usage Maximum (255),
 139   0x81, 0x00,                //   Input (Data, Array),
 140   0xc0                       // End Collection
 141 };
 142 /* wrapper */
 143 static const USBDescriptor keyboard_hid_report_descriptor = {
 144   sizeof keyboard_hid_report_desc_data,
 145   keyboard_hid_report_desc_data
 146 };
 147
 148 #ifdef NKRO_ENABLE
 149 static const uint8_t nkro_hid_report_desc_data[] = {
 150   0x05, 0x01,                           // Usage Page (Generic Desktop),
 151   0x09, 0x06,                           // Usage (Keyboard),
 152   0xA1, 0x01,                           // Collection (Application),
 153   // bitmap of modifiers
 154   0x75, 0x01,                           //   Report Size (1),
 155   0x95, 0x08,                           //   Report Count (8),
 156   0x05, 0x07,                           //   Usage Page (Key Codes),
 157   0x19, 0xE0,                           //   Usage Minimum (224),
 158   0x29, 0xE7,                           //   Usage Maximum (231),
 159   0x15, 0x00,                           //   Logical Minimum (0),
 160   0x25, 0x01,                           //   Logical Maximum (1),
 161   0x81, 0x02,                           //   Input (Data, Variable, Absolute), ;Modifier byte
 162   // LED output report
 163   0x95, 0x05,                           //   Report Count (5),
 164   0x75, 0x01,                           //   Report Size (1),
 165   0x05, 0x08,                           //   Usage Page (LEDs),
 166   0x19, 0x01,                           //   Usage Minimum (1),
 167   0x29, 0x05,                           //   Usage Maximum (5),
 168   0x91, 0x02,                           //   Output (Data, Variable, Absolute),
 169   0x95, 0x01,                           //   Report Count (1),
 170   0x75, 0x03,                           //   Report Size (3),
 171   0x91, 0x03,                           //   Output (Constant),
 172   // bitmap of keys
 173   0x95, NKRO_REPORT_KEYS * 8,           //   Report Count (),
 174   0x75, 0x01,                           //   Report Size (1),
 175   0x15, 0x00,                           //   Logical Minimum (0),
 176   0x25, 0x01,                           //   Logical Maximum(1),
 177   0x05, 0x07,                           //   Usage Page (Key Codes),
 178   0x19, 0x00,                           //   Usage Minimum (0),
 179   0x29, NKRO_REPORT_KEYS * 8 - 1,       //   Usage Maximum (),
 180   0x81, 0x02,                           //   Input (Data, Variable, Absolute),
 181   0xc0                                  // End Collection
 182 };
 183 /* wrapper */
 184 static const USBDescriptor nkro_hid_report_descriptor = {
 185   sizeof nkro_hid_report_desc_data,
 186   nkro_hid_report_desc_data
 187 };
 188 #endif /* NKRO_ENABLE */
 189
 190 #ifdef MOUSE_ENABLE
 191 /* Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
 192  * http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
 193  * http://www.keil.com/forum/15671/
 194  * http://www.microsoft.com/whdc/device/input/wheel.mspx */
 195 static const uint8_t mouse_hid_report_desc_data[] = {
 196   /* mouse */
 197   0x05, 0x01,                      // USAGE_PAGE (Generic Desktop)
 198   0x09, 0x02,                      // USAGE (Mouse)
 199   0xa1, 0x01,                      // COLLECTION (Application)
 200   //0x85, REPORT_ID_MOUSE,         //   REPORT_ID (1)
 201   0x09, 0x01,                      //   USAGE (Pointer)
 202   0xa1, 0x00,                      //   COLLECTION (Physical)
 203                                    // ----------------------------  Buttons
 204   0x05, 0x09,                      //     USAGE_PAGE (Button)
 205   0x19, 0x01,                      //     USAGE_MINIMUM (Button 1)
 206   0x29, 0x05,                      //     USAGE_MAXIMUM (Button 5)
 207   0x15, 0x00,                      //     LOGICAL_MINIMUM (0)
 208   0x25, 0x01,                      //     LOGICAL_MAXIMUM (1)
 209   0x75, 0x01,                      //     REPORT_SIZE (1)
 210   0x95, 0x05,                      //     REPORT_COUNT (5)
 211   0x81, 0x02,                      //     INPUT (Data,Var,Abs)
 212   0x75, 0x03,                      //     REPORT_SIZE (3)
 213   0x95, 0x01,                      //     REPORT_COUNT (1)
 214   0x81, 0x03,                      //     INPUT (Cnst,Var,Abs)
 215                                    // ----------------------------  X,Y position
 216   0x05, 0x01,                      //     USAGE_PAGE (Generic Desktop)
 217   0x09, 0x30,                      //     USAGE (X)
 218   0x09, 0x31,                      //     USAGE (Y)
 219   0x15, 0x81,                      //     LOGICAL_MINIMUM (-127)
 220   0x25, 0x7f,                      //     LOGICAL_MAXIMUM (127)
 221   0x75, 0x08,                      //     REPORT_SIZE (8)
 222   0x95, 0x02,                      //     REPORT_COUNT (2)
 223   0x81, 0x06,                      //     INPUT (Data,Var,Rel)
 224                                    // ----------------------------  Vertical wheel
 225   0x09, 0x38,                      //     USAGE (Wheel)
 226   0x15, 0x81,                      //     LOGICAL_MINIMUM (-127)
 227   0x25, 0x7f,                      //     LOGICAL_MAXIMUM (127)
 228   0x35, 0x00,                      //     PHYSICAL_MINIMUM (0)        - reset physical
 229   0x45, 0x00,                      //     PHYSICAL_MAXIMUM (0)
 230   0x75, 0x08,                      //     REPORT_SIZE (8)
 231   0x95, 0x01,                      //     REPORT_COUNT (1)
 232   0x81, 0x06,                      //     INPUT (Data,Var,Rel)
 233                                    // ----------------------------  Horizontal wheel
 234   0x05, 0x0c,                      //     USAGE_PAGE (Consumer Devices)
 235   0x0a, 0x38, 0x02,                //     USAGE (AC Pan)
 236   0x15, 0x81,                      //     LOGICAL_MINIMUM (-127)
 237   0x25, 0x7f,                      //     LOGICAL_MAXIMUM (127)
 238   0x75, 0x08,                      //     REPORT_SIZE (8)
 239   0x95, 0x01,                      //     REPORT_COUNT (1)
 240   0x81, 0x06,                      //     INPUT (Data,Var,Rel)
 241   0xc0,                            //   END_COLLECTION
 242   0xc0,                            // END_COLLECTION
 243 };
 244 /* wrapper */
 245 static const USBDescriptor mouse_hid_report_descriptor = {
 246   sizeof mouse_hid_report_desc_data,
 247   mouse_hid_report_desc_data
 248 };
 249 #endif /* MOUSE_ENABLE */
 250
 251 #ifdef CONSOLE_ENABLE
 252 static const uint8_t console_hid_report_desc_data[] = {
 253   0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined)
 254   0x09, 0x74,       // Usage 0x74
 255   0xA1, 0x53,       // Collection 0x53
 256   0x75, 0x08,       // report size = 8 bits
 257   0x15, 0x00,       // logical minimum = 0
 258   0x26, 0xFF, 0x00, // logical maximum = 255
 259   0x95, CONSOLE_EPSIZE, // report count
 260   0x09, 0x75,       // usage
 261   0x81, 0x02,       // Input (array)
 262   0xC0              // end collection
 263 };
 264 /* wrapper */
 265 static const USBDescriptor console_hid_report_descriptor = {
 266   sizeof console_hid_report_desc_data,
 267   console_hid_report_desc_data
 268 };
 269 #endif /* CONSOLE_ENABLE */
 270
 271 #ifdef EXTRAKEY_ENABLE
 272 /* audio controls & system controls
 273  * http://www.microsoft.com/whdc/archive/w2kbd.mspx */
 274 static const uint8_t extra_hid_report_desc_data[] = {
 275   /* system control */
 276   0x05, 0x01,                      // USAGE_PAGE (Generic Desktop)
 277   0x09, 0x80,                      // USAGE (System Control)
 278   0xa1, 0x01,                      // COLLECTION (Application)
 279   0x85, REPORT_ID_SYSTEM,          //   REPORT_ID (2)
 280   0x15, 0x01,                      //   LOGICAL_MINIMUM (0x1)
 281   0x25, 0xb7,                      //   LOGICAL_MAXIMUM (0xb7)
 282   0x19, 0x01,                      //   USAGE_MINIMUM (0x1)
 283   0x29, 0xb7,                      //   USAGE_MAXIMUM (0xb7)
 284   0x75, 0x10,                      //   REPORT_SIZE (16)
 285   0x95, 0x01,                      //   REPORT_COUNT (1)
 286   0x81, 0x00,                      //   INPUT (Data,Array,Abs)
 287   0xc0,                            // END_COLLECTION
 288   /* consumer */
 289   0x05, 0x0c,                      // USAGE_PAGE (Consumer Devices)
 290   0x09, 0x01,                      // USAGE (Consumer Control)
 291   0xa1, 0x01,                      // COLLECTION (Application)
 292   0x85, REPORT_ID_CONSUMER,        //   REPORT_ID (3)
 293   0x15, 0x01,                      //   LOGICAL_MINIMUM (0x1)
 294   0x26, 0x9c, 0x02,                //   LOGICAL_MAXIMUM (0x29c)
 295   0x19, 0x01,                      //   USAGE_MINIMUM (0x1)
 296   0x2a, 0x9c, 0x02,                //   USAGE_MAXIMUM (0x29c)
 297   0x75, 0x10,                      //   REPORT_SIZE (16)
 298   0x95, 0x01,                      //   REPORT_COUNT (1)
 299   0x81, 0x00,                      //   INPUT (Data,Array,Abs)
 300   0xc0,                            // END_COLLECTION
 301 };
 302 /* wrapper */
 303 static const USBDescriptor extra_hid_report_descriptor = {
 304   sizeof extra_hid_report_desc_data,
 305   extra_hid_report_desc_data
 306 };
 307 #endif /* EXTRAKEY_ENABLE */
 308
 309
 310 /*
 311  * Configuration Descriptor tree for a HID device
 312  *
 313  * The HID Specifications version 1.11 require the following order:
 314  * - Configuration Descriptor
 315  * - Interface Descriptor
 316  * - HID Descriptor
 317  * - Endpoints Descriptors
 318  */
 319 #define KBD_HID_DESC_NUM                0
 320 #define KBD_HID_DESC_OFFSET             (9 + (9 + 9 + 7) * KBD_HID_DESC_NUM + 9)
 321
 322 #ifdef MOUSE_ENABLE
 323 #   define MOUSE_HID_DESC_NUM           (KBD_HID_DESC_NUM + 1)
 324 #   define MOUSE_HID_DESC_OFFSET        (9 + (9 + 9 + 7) * MOUSE_HID_DESC_NUM + 9)
 325 #else /* MOUSE_ENABLE */
 326 #   define MOUSE_HID_DESC_NUM           (KBD_HID_DESC_NUM + 0)
 327 #endif /* MOUSE_ENABLE */
 328
 329 #ifdef CONSOLE_ENABLE
 330 #define CONSOLE_HID_DESC_NUM            (MOUSE_HID_DESC_NUM + 1)
 331 #define CONSOLE_HID_DESC_OFFSET         (9 + (9 + 9 + 7) * CONSOLE_HID_DESC_NUM + 9)
 332 #else /* CONSOLE_ENABLE */
 333 #   define CONSOLE_HID_DESC_NUM         (MOUSE_HID_DESC_NUM + 0)
 334 #endif /* CONSOLE_ENABLE */
 335
 336 #ifdef EXTRAKEY_ENABLE
 337 #   define EXTRA_HID_DESC_NUM           (CONSOLE_HID_DESC_NUM + 1)
 338 #   define EXTRA_HID_DESC_OFFSET        (9 + (9 + 9 + 7) * EXTRA_HID_DESC_NUM + 9)
 339 #else /* EXTRAKEY_ENABLE */
 340 #   define EXTRA_HID_DESC_NUM           (CONSOLE_HID_DESC_NUM + 0)
 341 #endif /* EXTRAKEY_ENABLE */
 342
 343 #ifdef NKRO_ENABLE
 344 #   define NKRO_HID_DESC_NUM            (EXTRA_HID_DESC_NUM + 1)
 345 #   define NKRO_HID_DESC_OFFSET         (9 + (9 + 9 + 7) * EXTRA_HID_DESC_NUM + 9)
 346 #else /* NKRO_ENABLE */
 347 #   define NKRO_HID_DESC_NUM            (EXTRA_HID_DESC_NUM + 0)
 348 #endif /* NKRO_ENABLE */
 349
 350 #define NUM_INTERFACES                  (NKRO_HID_DESC_NUM + 1)
 351 #define CONFIG1_DESC_SIZE               (9 + (9 + 9 + 7) * NUM_INTERFACES)
 352
 353 static const uint8_t hid_configuration_descriptor_data[] = {
 354   /* Configuration Descriptor (9 bytes) USB spec 9.6.3, page 264-266, Table 9-10 */
 355   USB_DESC_CONFIGURATION(CONFIG1_DESC_SIZE, // wTotalLength
 356                          NUM_INTERFACES,    // bNumInterfaces
 357                          1,    // bConfigurationValue
 358                          0,    // iConfiguration
 359                          0xA0, // bmAttributes
 360                          50),  // bMaxPower (100mA)
 361
 362   /* Interface Descriptor (9 bytes) USB spec 9.6.5, page 267-269, Table 9-12 */
 363   USB_DESC_INTERFACE(KBD_INTERFACE,        // bInterfaceNumber
 364                      0,        // bAlternateSetting
 365                      1,        // bNumEndpoints
 366                      0x03,     // bInterfaceClass: HID
 367                      0x01,     // bInterfaceSubClass: Boot
 368                      0x01,     // bInterfaceProtocol: Keyboard
 369                      0),       // iInterface
 370
 371   /* HID descriptor (9 bytes) HID 1.11 spec, section 6.2.1 */
 372   USB_DESC_BYTE(9),            // bLength
 373   USB_DESC_BYTE(0x21),         // bDescriptorType (HID class)
 374   USB_DESC_BCD(0x0111),        // bcdHID: HID version 1.11
 375   USB_DESC_BYTE(0),            // bCountryCode
 376   USB_DESC_BYTE(1),            // bNumDescriptors
 377   USB_DESC_BYTE(0x22),         // bDescriptorType (report desc)
 378   USB_DESC_WORD(sizeof(keyboard_hid_report_desc_data)), // wDescriptorLength
 379
 380   /* Endpoint Descriptor (7 bytes) USB spec 9.6.6, page 269-271, Table 9-13 */
 381   USB_DESC_ENDPOINT(KBD_ENDPOINT | 0x80,  // bEndpointAddress
 382                     0x03,      // bmAttributes (Interrupt)
 383                     KBD_EPSIZE,// wMaxPacketSize
 384                     10),       // bInterval
 385
 386   #ifdef MOUSE_ENABLE
 387   /* Interface Descriptor (9 bytes) USB spec 9.6.5, page 267-269, Table 9-12 */
 388   USB_DESC_INTERFACE(MOUSE_INTERFACE,   // bInterfaceNumber
 389                      0,        // bAlternateSetting
 390                      1,        // bNumEndpoints
 391                      0x03,     // bInterfaceClass (0x03 = HID)
 392                      // ThinkPad T23 BIOS doesn't work with boot mouse.
 393                      0x00,     // bInterfaceSubClass (0x01 = Boot)
 394                      0x00,     // bInterfaceProtocol (0x02 = Mouse)
 395                      /*
 396                         0x01,      // bInterfaceSubClass (0x01 = Boot)
 397                         0x02,      // bInterfaceProtocol (0x02 = Mouse)
 398                       */
 399                      0),        // iInterface
 400
 401   /* HID descriptor (9 bytes) HID 1.11 spec, section 6.2.1 */
 402   USB_DESC_BYTE(9),            // bLength
 403   USB_DESC_BYTE(0x21),         // bDescriptorType (HID class)
 404   USB_DESC_BCD(0x0111),        // bcdHID: HID version 1.11
 405   USB_DESC_BYTE(0),            // bCountryCode
 406   USB_DESC_BYTE(1),            // bNumDescriptors
 407   USB_DESC_BYTE(0x22),         // bDescriptorType (report desc)
 408   USB_DESC_WORD(sizeof(mouse_hid_report_desc_data)), // wDescriptorLength
 409
 410   /* Endpoint Descriptor (7 bytes) USB spec 9.6.6, page 269-271, Table 9-13 */
 411   USB_DESC_ENDPOINT(MOUSE_ENDPOINT | 0x80,  // bEndpointAddress
 412                     0x03,      // bmAttributes (Interrupt)
 413                     MOUSE_EPSIZE,  // wMaxPacketSize
 414                     1),        // bInterval
 415   #endif /* MOUSE_ENABLE */
 416
 417   #ifdef CONSOLE_ENABLE
 418   /* Interface Descriptor (9 bytes) USB spec 9.6.5, page 267-269, Table 9-12 */
 419   USB_DESC_INTERFACE(CONSOLE_INTERFACE, // bInterfaceNumber
 420                      0,        // bAlternateSetting
 421                      1,        // bNumEndpoints
 422                      0x03,     // bInterfaceClass: HID
 423                      0x00,     // bInterfaceSubClass: None
 424                      0x00,     // bInterfaceProtocol: None
 425                      0),       // iInterface
 426
 427   /* HID descriptor (9 bytes) HID 1.11 spec, section 6.2.1 */
 428   USB_DESC_BYTE(9),            // bLength
 429   USB_DESC_BYTE(0x21),         // bDescriptorType (HID class)
 430   USB_DESC_BCD(0x0111),        // bcdHID: HID version 1.11
 431   USB_DESC_BYTE(0),            // bCountryCode
 432   USB_DESC_BYTE(1),            // bNumDescriptors
 433   USB_DESC_BYTE(0x22),         // bDescriptorType (report desc)
 434   USB_DESC_WORD(sizeof(console_hid_report_desc_data)), // wDescriptorLength
 435
 436   /* Endpoint Descriptor (7 bytes) USB spec 9.6.6, page 269-271, Table 9-13 */
 437   USB_DESC_ENDPOINT(CONSOLE_ENDPOINT | 0x80,  // bEndpointAddress
 438                     0x03,      // bmAttributes (Interrupt)
 439                     CONSOLE_EPSIZE, // wMaxPacketSize
 440                     1),        // bInterval
 441   #endif /* CONSOLE_ENABLE */
 442
 443   #ifdef EXTRAKEY_ENABLE
 444   /* Interface Descriptor (9 bytes) USB spec 9.6.5, page 267-269, Table 9-12 */
 445   USB_DESC_INTERFACE(EXTRA_INTERFACE, // bInterfaceNumber
 446                      0,        // bAlternateSetting
 447                      1,        // bNumEndpoints
 448                      0x03,     // bInterfaceClass: HID
 449                      0x00,     // bInterfaceSubClass: None
 450                      0x00,     // bInterfaceProtocol: None
 451                      0),       // iInterface
 452
 453   /* HID descriptor (9 bytes) HID 1.11 spec, section 6.2.1 */
 454   USB_DESC_BYTE(9),            // bLength
 455   USB_DESC_BYTE(0x21),         // bDescriptorType (HID class)
 456   USB_DESC_BCD(0x0111),        // bcdHID: HID version 1.11
 457   USB_DESC_BYTE(0),            // bCountryCode
 458   USB_DESC_BYTE(1),            // bNumDescriptors
 459   USB_DESC_BYTE(0x22),         // bDescriptorType (report desc)
 460   USB_DESC_WORD(sizeof(extra_hid_report_desc_data)), // wDescriptorLength
 461
 462   /* Endpoint Descriptor (7 bytes) USB spec 9.6.6, page 269-271, Table 9-13 */
 463   USB_DESC_ENDPOINT(EXTRA_ENDPOINT | 0x80,  // bEndpointAddress
 464                     0x03,      // bmAttributes (Interrupt)
 465                     EXTRA_EPSIZE, // wMaxPacketSize
 466                     10),       // bInterval
 467   #endif /* EXTRAKEY_ENABLE */
 468
 469   #ifdef NKRO_ENABLE
 470   /* Interface Descriptor (9 bytes) USB spec 9.6.5, page 267-269, Table 9-12 */
 471   USB_DESC_INTERFACE(NKRO_INTERFACE, // bInterfaceNumber
 472                      0,        // bAlternateSetting
 473                      1,        // bNumEndpoints
 474                      0x03,     // bInterfaceClass: HID
 475                      0x00,     // bInterfaceSubClass: None
 476                      0x00,     // bInterfaceProtocol: None
 477                      0),       // iInterface
 478
 479   /* HID descriptor (9 bytes) HID 1.11 spec, section 6.2.1 */
 480   USB_DESC_BYTE(9),            // bLength
 481   USB_DESC_BYTE(0x21),         // bDescriptorType (HID class)
 482   USB_DESC_BCD(0x0111),        // bcdHID: HID version 1.11
 483   USB_DESC_BYTE(0),            // bCountryCode
 484   USB_DESC_BYTE(1),            // bNumDescriptors
 485   USB_DESC_BYTE(0x22),         // bDescriptorType (report desc)
 486   USB_DESC_WORD(sizeof(nkro_hid_report_desc_data)), // wDescriptorLength
 487
 488   /* Endpoint Descriptor (7 bytes) USB spec 9.6.6, page 269-271, Table 9-13 */
 489   USB_DESC_ENDPOINT(NKRO_ENDPOINT | 0x80,  // bEndpointAddress
 490                     0x03,      // bmAttributes (Interrupt)
 491                     NKRO_EPSIZE, // wMaxPacketSize
 492                     1),       // bInterval
 493   #endif /* NKRO_ENABLE */
 494 };
 495
 496 /* Configuration Descriptor wrapper */
 497 static const USBDescriptor hid_configuration_descriptor = {
 498   sizeof hid_configuration_descriptor_data,
 499   hid_configuration_descriptor_data
 500 };
 501
 502 /* wrappers */
 503 #define HID_DESCRIPTOR_SIZE 9
 504 static const USBDescriptor keyboard_hid_descriptor = {
 505   HID_DESCRIPTOR_SIZE,
 506   &hid_configuration_descriptor_data[KBD_HID_DESC_OFFSET]
 507 };
 508 #ifdef MOUSE_ENABLE
 509 static const USBDescriptor mouse_hid_descriptor = {
 510   HID_DESCRIPTOR_SIZE,
 511   &hid_configuration_descriptor_data[MOUSE_HID_DESC_OFFSET]
 512 };
 513 #endif /* MOUSE_ENABLE */
 514 #ifdef CONSOLE_ENABLE
 515 static const USBDescriptor console_hid_descriptor = {
 516   HID_DESCRIPTOR_SIZE,
 517   &hid_configuration_descriptor_data[CONSOLE_HID_DESC_OFFSET]
 518 };
 519 #endif /* CONSOLE_ENABLE */
 520 #ifdef EXTRAKEY_ENABLE
 521 static const USBDescriptor extra_hid_descriptor = {
 522   HID_DESCRIPTOR_SIZE,
 523   &hid_configuration_descriptor_data[EXTRA_HID_DESC_OFFSET]
 524 };
 525 #endif /* EXTRAKEY_ENABLE */
 526 #ifdef NKRO_ENABLE
 527 static const USBDescriptor nkro_hid_descriptor = {
 528   HID_DESCRIPTOR_SIZE,
 529   &hid_configuration_descriptor_data[NKRO_HID_DESC_OFFSET]
 530 };
 531 #endif /* NKRO_ENABLE */
 532
 533
 534 /* U.S. English language identifier */
 535 static const uint8_t usb_string_langid[] = {
 536   USB_DESC_BYTE(4),                        // bLength
 537   USB_DESC_BYTE(USB_DESCRIPTOR_STRING),    // bDescriptorType
 538   USB_DESC_WORD(0x0409)                    // wLANGID (U.S. English)
 539 };
 540
 541 /* ugly ugly hack */
 542 #define PP_NARG(...) \
 543          PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
 544 #define PP_NARG_(...) \
 545          PP_ARG_N(__VA_ARGS__)
 546 #define PP_ARG_N( \
 547           _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
 548          _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
 549          _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
 550          _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
 551          _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
 552          _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
 553          _61,_62,_63,N,...) N
 554 #define PP_RSEQ_N() \
 555          63,62,61,60,                   \
 556          59,58,57,56,55,54,53,52,51,50, \
 557          49,48,47,46,45,44,43,42,41,40, \
 558          39,38,37,36,35,34,33,32,31,30, \
 559          29,28,27,26,25,24,23,22,21,20, \
 560          19,18,17,16,15,14,13,12,11,10, \
 561          9,8,7,6,5,4,3,2,1,0
 562
 563 /* Vendor string = manufacturer */
 564 static const uint8_t usb_string_vendor[] = {
 565   USB_DESC_BYTE(PP_NARG(USBSTR_MANUFACTURER)+2),                       // bLength
 566   USB_DESC_BYTE(USB_DESCRIPTOR_STRING),    // bDescriptorType
 567   USBSTR_MANUFACTURER
 568 };
 569
 570 /* Device Description string = product */
 571 static const uint8_t usb_string_description[] = {
 572   USB_DESC_BYTE(PP_NARG(USBSTR_PRODUCT)+2),           // bLength
 573   USB_DESC_BYTE(USB_DESCRIPTOR_STRING),    // bDescriptorType
 574   USBSTR_PRODUCT
 575 };
 576
 577 /* Serial Number string (will be filled by the function init_usb_serial_string) */
 578 static uint8_t usb_string_serial[] = {
 579   USB_DESC_BYTE(22),                       // bLength
 580   USB_DESC_BYTE(USB_DESCRIPTOR_STRING),    // bDescriptorType
 581   '0', 0, 'x', 0, 'D', 0, 'E', 0, 'A', 0, 'D', 0, 'B', 0, 'E', 0, 'E', 0, 'F', 0
 582 };
 583
 584 /* Strings wrappers array */
 585 static const USBDescriptor usb_strings[] = {
 586   { sizeof usb_string_langid, usb_string_langid }
 587   ,
 588   { sizeof usb_string_vendor, usb_string_vendor }
 589   ,
 590   { sizeof usb_string_description, usb_string_description }
 591   ,
 592   { sizeof usb_string_serial, usb_string_serial }
 593 };
 594
 595 /*
 596  * Handles the GET_DESCRIPTOR callback
 597  *
 598  * Returns the proper descriptor
 599  */
 600 static const USBDescriptor *usb_get_descriptor_cb(USBDriver *usbp, uint8_t dtype, uint8_t dindex, uint16_t lang) {
 601   (void)usbp;
 602   (void)lang;
 603   switch(dtype) {
 604   /* Generic descriptors */
 605   case USB_DESCRIPTOR_DEVICE:   /* Device Descriptor */
 606     return &usb_device_descriptor;
 607
 608   case USB_DESCRIPTOR_CONFIGURATION:    /* Configuration Descriptor */
 609     return &hid_configuration_descriptor;
 610
 611   case USB_DESCRIPTOR_STRING:   /* Strings */
 612     if(dindex < 4)
 613       return &usb_strings[dindex];
 614     break;
 615
 616   /* HID specific descriptors */
 617   case USB_DESCRIPTOR_HID:      /* HID Descriptors */
 618     switch(lang) {    /* yea, poor label, it's actually wIndex from the setup packet */
 619     case KBD_INTERFACE:
 620       return &keyboard_hid_descriptor;
 621
 622 #ifdef MOUSE_ENABLE
 623     case MOUSE_INTERFACE:
 624       return &mouse_hid_descriptor;
 625 #endif /* MOUSE_ENABLE */
 626 #ifdef CONSOLE_ENABLE
 627     case CONSOLE_INTERFACE:
 628       return &console_hid_descriptor;
 629 #endif /* CONSOLE_ENABLE */
 630 #ifdef EXTRAKEY_ENABLE
 631     case EXTRA_INTERFACE:
 632       return &extra_hid_descriptor;
 633 #endif /* EXTRAKEY_ENABLE */
 634 #ifdef NKRO_ENABLE
 635     case NKRO_INTERFACE:
 636       return &nkro_hid_descriptor;
 637 #endif /* NKRO_ENABLE */
 638     }
 639
 640   case USB_DESCRIPTOR_HID_REPORT:       /* HID Report Descriptor */
 641     switch(lang) {
 642     case KBD_INTERFACE:
 643       return &keyboard_hid_report_descriptor;
 644
 645 #ifdef MOUSE_ENABLE
 646     case MOUSE_INTERFACE:
 647       return &mouse_hid_report_descriptor;
 648 #endif /* MOUSE_ENABLE */
 649 #ifdef CONSOLE_ENABLE
 650     case CONSOLE_INTERFACE:
 651       return &console_hid_report_descriptor;
 652 #endif /* CONSOLE_ENABLE */
 653 #ifdef EXTRAKEY_ENABLE
 654     case EXTRA_INTERFACE:
 655       return &extra_hid_report_descriptor;
 656 #endif /* EXTRAKEY_ENABLE */
 657 #ifdef NKRO_ENABLE
 658     case NKRO_INTERFACE:
 659       return &nkro_hid_report_descriptor;
 660 #endif /* NKRO_ENABLE */
 661     }
 662   }
 663   return NULL;
 664 }
 665
 666 /* keyboard endpoint state structure */
 667 static USBInEndpointState kbd_ep_state;
 668 /* keyboard endpoint initialization structure (IN) */
 669 static const USBEndpointConfig kbd_ep_config = {
 670   USB_EP_MODE_TYPE_INTR,        /* Interrupt EP */
 671   NULL,                         /* SETUP packet notification callback */
 672   kbd_in_cb,                    /* IN notification callback */
 673   NULL,                         /* OUT notification callback */
 674   KBD_EPSIZE,                   /* IN maximum packet size */
 675   0,                            /* OUT maximum packet size */
 676   &kbd_ep_state,                /* IN Endpoint state */
 677   NULL,                         /* OUT endpoint state */
 678   2,                            /* IN multiplier */
 679   NULL                          /* SETUP buffer (not a SETUP endpoint) */
 680 };
 681
 682 #ifdef MOUSE_ENABLE
 683 /* mouse endpoint state structure */
 684 static USBInEndpointState mouse_ep_state;
 685
 686 /* mouse endpoint initialization structure (IN) */
 687 static const USBEndpointConfig mouse_ep_config = {
 688   USB_EP_MODE_TYPE_INTR,        /* Interrupt EP */
 689   NULL,                         /* SETUP packet notification callback */
 690   mouse_in_cb,                  /* IN notification callback */
 691   NULL,                         /* OUT notification callback */
 692   MOUSE_EPSIZE,                 /* IN maximum packet size */
 693   0,                            /* OUT maximum packet size */
 694   &mouse_ep_state,              /* IN Endpoint state */
 695   NULL,                         /* OUT endpoint state */
 696   2,                            /* IN multiplier */
 697   NULL                          /* SETUP buffer (not a SETUP endpoint) */
 698 };
 699 #endif /* MOUSE_ENABLE */
 700
 701 #ifdef CONSOLE_ENABLE
 702 /* console endpoint state structure */
 703 static USBInEndpointState console_ep_state;
 704
 705 /* console endpoint initialization structure (IN) */
 706 static const USBEndpointConfig console_ep_config = {
 707   USB_EP_MODE_TYPE_INTR,        /* Interrupt EP */
 708   NULL,                         /* SETUP packet notification callback */
 709   console_in_cb,                /* IN notification callback */
 710   NULL,                         /* OUT notification callback */
 711   CONSOLE_EPSIZE,               /* IN maximum packet size */
 712   0,                            /* OUT maximum packet size */
 713   &console_ep_state,            /* IN Endpoint state */
 714   NULL,                         /* OUT endpoint state */
 715   2,                            /* IN multiplier */
 716   NULL                          /* SETUP buffer (not a SETUP endpoint) */
 717 };
 718 #endif /* CONSOLE_ENABLE */
 719
 720 #ifdef EXTRAKEY_ENABLE
 721 /* extrakey endpoint state structure */
 722 static USBInEndpointState extra_ep_state;
 723
 724 /* extrakey endpoint initialization structure (IN) */
 725 static const USBEndpointConfig extra_ep_config = {
 726   USB_EP_MODE_TYPE_INTR,        /* Interrupt EP */
 727   NULL,                         /* SETUP packet notification callback */
 728   extra_in_cb,                  /* IN notification callback */
 729   NULL,                         /* OUT notification callback */
 730   EXTRA_EPSIZE,                 /* IN maximum packet size */
 731   0,                            /* OUT maximum packet size */
 732   &extra_ep_state,              /* IN Endpoint state */
 733   NULL,                         /* OUT endpoint state */
 734   2,                            /* IN multiplier */
 735   NULL                          /* SETUP buffer (not a SETUP endpoint) */
 736 };
 737 #endif /* EXTRAKEY_ENABLE */
 738
 739 #ifdef NKRO_ENABLE
 740 /* nkro endpoint state structure */
 741 static USBInEndpointState nkro_ep_state;
 742
 743 /* nkro endpoint initialization structure (IN) */
 744 static const USBEndpointConfig nkro_ep_config = {
 745   USB_EP_MODE_TYPE_INTR,        /* Interrupt EP */
 746   NULL,                         /* SETUP packet notification callback */
 747   nkro_in_cb,                   /* IN notification callback */
 748   NULL,                         /* OUT notification callback */
 749   NKRO_EPSIZE,                  /* IN maximum packet size */
 750   0,                            /* OUT maximum packet size */
 751   &nkro_ep_state,               /* IN Endpoint state */
 752   NULL,                         /* OUT endpoint state */
 753   2,                            /* IN multiplier */
 754   NULL                          /* SETUP buffer (not a SETUP endpoint) */
 755 };
 756 #endif /* NKRO_ENABLE */
 757
 758 /* ---------------------------------------------------------
 759  *                  USB driver functions
 760  * ---------------------------------------------------------
 761  */
 762
 763 /* Handles the USB driver global events
 764  * TODO: maybe disable some things when connection is lost? */
 765 static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
 766   switch(event) {
 767   case USB_EVENT_RESET:
 768     //TODO: from ISR! print("[R]");
 769     return;
 770
 771   case USB_EVENT_ADDRESS:
 772     return;
 773
 774   case USB_EVENT_CONFIGURED:
 775     osalSysLockFromISR();
 776     /* Enable the endpoints specified into the configuration. */
 777     usbInitEndpointI(usbp, KBD_ENDPOINT, &kbd_ep_config);
 778 #ifdef MOUSE_ENABLE
 779     usbInitEndpointI(usbp, MOUSE_ENDPOINT, &mouse_ep_config);
 780 #endif /* MOUSE_ENABLE */
 781 #ifdef CONSOLE_ENABLE
 782     usbInitEndpointI(usbp, CONSOLE_ENDPOINT, &console_ep_config);
 783     /* don't need to start the flush timer, it starts from console_in_cb automatically */
 784 #endif /* CONSOLE_ENABLE */
 785 #ifdef EXTRAKEY_ENABLE
 786     usbInitEndpointI(usbp, EXTRA_ENDPOINT, &extra_ep_config);
 787 #endif /* EXTRAKEY_ENABLE */
 788 #ifdef NKRO_ENABLE
 789     usbInitEndpointI(usbp, NKRO_ENDPOINT, &nkro_ep_config);
 790 #endif /* NKRO_ENABLE */
 791     osalSysUnlockFromISR();
 792     return;
 793
 794   case USB_EVENT_SUSPEND:
 795     //TODO: from ISR! print("[S]");
 796     //TODO: signal suspend?
 797 #ifdef SLEEP_LED_ENABLE
 798     sleep_led_enable();
 799 #endif /* SLEEP_LED_ENABLE */
 800     return;
 801
 802   case USB_EVENT_WAKEUP:
 803     //TODO: from ISR! print("[W]");
 804     //TODO: suspend_wakeup_init();
 805 #ifdef SLEEP_LED_ENABLE
 806     sleep_led_disable();
 807     // NOTE: converters may not accept this
 808     led_set(host_keyboard_leds());
 809 #endif /* SLEEP_LED_ENABLE */
 810     return;
 811
 812   case USB_EVENT_STALLED:
 813     return;
 814   }
 815 }
 816
 817 /* Function used locally in os/hal/src/usb.c for getting descriptors
 818  * need it here for HID descriptor */
 819 static uint16_t get_hword(uint8_t *p) {
 820   uint16_t hw;
 821
 822   hw = (uint16_t)*p++;
 823   hw |= (uint16_t)*p << 8U;
 824   return hw;
 825 }
 826
 827 /*
 828  * Appendix G: HID Request Support Requirements
 829  *
 830  * The following table enumerates the requests that need to be supported by various types of HID class devices.
 831  * Device type     GetReport   SetReport   GetIdle     SetIdle     GetProtocol SetProtocol
 832  * ------------------------------------------------------------------------------------------
 833  * Boot Mouse      Required    Optional    Optional    Optional    Required    Required
 834  * Non-Boot Mouse  Required    Optional    Optional    Optional    Optional    Optional
 835  * Boot Keyboard   Required    Optional    Required    Required    Required    Required
 836  * Non-Boot Keybrd Required    Optional    Required    Required    Optional    Optional
 837  * Other Device    Required    Optional    Optional    Optional    Optional    Optional
 838  */
 839
 840 /* Callback for SETUP request on the endpoint 0 (control) */
 841 static bool usb_request_hook_cb(USBDriver *usbp) {
 842   const USBDescriptor *dp;
 843
 844   /* usbp->setup fields:
 845    *  0:   bmRequestType (bitmask)
 846    *  1:   bRequest
 847    *  2,3: (LSB,MSB) wValue
 848    *  4,5: (LSB,MSB) wIndex
 849    *  6,7: (LSB,MSB) wLength (number of bytes to transfer if there is a data phase) */
 850
 851   /* Handle HID class specific requests */
 852   if(((usbp->setup[0] & USB_RTYPE_TYPE_MASK) == USB_RTYPE_TYPE_CLASS) &&
 853      ((usbp->setup[0] & USB_RTYPE_RECIPIENT_MASK) == USB_RTYPE_RECIPIENT_INTERFACE)) {
 854     switch(usbp->setup[0] & USB_RTYPE_DIR_MASK) {
 855     case USB_RTYPE_DIR_DEV2HOST:
 856       switch(usbp->setup[1]) {   /* bRequest */
 857       case HID_GET_REPORT:
 858         switch(usbp->setup[4]) {     /* LSB(wIndex) (check MSB==0?) */
 859         case KBD_INTERFACE:
 860 #ifdef NKRO_ENABLE
 861         case NKRO_INTERFACE:
 862 #endif /* NKRO_ENABLE */
 863           usbSetupTransfer(usbp, (uint8_t *)&keyboard_report_sent, sizeof(keyboard_report_sent), NULL);
 864           return TRUE;
 865           break;
 866
 867 #ifdef MOUSE_ENABLE
 868         case MOUSE_INTERFACE:
 869           usbSetupTransfer(usbp, (uint8_t *)&mouse_report_blank, sizeof(mouse_report_blank), NULL);
 870           return TRUE;
 871           break;
 872 #endif /* MOUSE_ENABLE */
 873
 874 #ifdef CONSOLE_ENABLE
 875         case CONSOLE_INTERFACE:
 876           usbSetupTransfer(usbp, console_queue_buffer, CONSOLE_EPSIZE, NULL);
 877           return TRUE;
 878           break;
 879 #endif /* CONSOLE_ENABLE */
 880
 881 #ifdef EXTRAKEY_ENABLE
 882         case EXTRA_INTERFACE:
 883           if(usbp->setup[3] == 1) { /* MSB(wValue) [Report Type] == 1 [Input Report] */
 884             switch(usbp->setup[2]) { /* LSB(wValue) [Report ID] */
 885               case REPORT_ID_SYSTEM:
 886                 extra_report_blank[0] = REPORT_ID_SYSTEM;
 887                 usbSetupTransfer(usbp, (uint8_t *)extra_report_blank, sizeof(extra_report_blank), NULL);
 888                 return TRUE;
 889                 break;
 890               case REPORT_ID_CONSUMER:
 891                 extra_report_blank[0] = REPORT_ID_CONSUMER;
 892                 usbSetupTransfer(usbp, (uint8_t *)extra_report_blank, sizeof(extra_report_blank), NULL);
 893                 return TRUE;
 894                 break;
 895               default:
 896                 return FALSE;
 897             }
 898           } else {
 899             return FALSE;
 900           }
 901           break;
 902 #endif /* EXTRAKEY_ENABLE */
 903
 904         default:
 905           usbSetupTransfer(usbp, NULL, 0, NULL);
 906           return TRUE;
 907           break;
 908         }
 909         break;
 910
 911       case HID_GET_PROTOCOL:
 912         if((usbp->setup[4] == KBD_INTERFACE) && (usbp->setup[5] == 0)) {   /* wIndex */
 913           usbSetupTransfer(usbp, &keyboard_protocol, 1, NULL);
 914           return TRUE;
 915         }
 916         break;
 917
 918       case HID_GET_IDLE:
 919         usbSetupTransfer(usbp, &keyboard_idle, 1, NULL);
 920         return TRUE;
 921         break;
 922       }
 923       break;
 924
 925     case USB_RTYPE_DIR_HOST2DEV:
 926       switch(usbp->setup[1]) {   /* bRequest */
 927       case HID_SET_REPORT:
 928         switch(usbp->setup[4]) {       /* LSB(wIndex) (check MSB==0 and wLength==1?) */
 929         case KBD_INTERFACE:
 930 #ifdef NKRO_ENABLE
 931         case NKRO_INTERFACE:
 932 #endif  /* NKRO_ENABLE */
 933         /* keyboard_led_stats = <read byte from next OUT report>
 934          * keyboard_led_stats needs be word (or dword), otherwise we get an exception on F0 */
 935           usbSetupTransfer(usbp, (uint8_t *)&keyboard_led_stats, 1, NULL);
 936           return TRUE;
 937           break;
 938         }
 939         break;
 940
 941       case HID_SET_PROTOCOL:
 942         if((usbp->setup[4] == KBD_INTERFACE) && (usbp->setup[5] == 0)) {   /* wIndex */
 943           keyboard_protocol = ((usbp->setup[2]) != 0x00);   /* LSB(wValue) */
 944 #ifdef NKRO_ENABLE
 945           keyboard_nkro = !!keyboard_protocol;
 946           if(!keyboard_nkro && keyboard_idle) {
 947 #else /* NKRO_ENABLE */
 948           if(keyboard_idle) {
 949 #endif /* NKRO_ENABLE */
 950           /* arm the idle timer if boot protocol & idle */
 951             osalSysLockFromISR();
 952             chVTSetI(&keyboard_idle_timer, 4*MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp);
 953             osalSysUnlockFromISR();
 954           }
 955         }
 956         usbSetupTransfer(usbp, NULL, 0, NULL);
 957         return TRUE;
 958         break;
 959
 960       case HID_SET_IDLE:
 961         keyboard_idle = usbp->setup[3];     /* MSB(wValue) */
 962         /* arm the timer */
 963 #ifdef NKRO_ENABLE
 964         if(!keyboard_nkro && keyboard_idle) {
 965 #else /* NKRO_ENABLE */
 966         if(keyboard_idle) {
 967 #endif /* NKRO_ENABLE */
 968           osalSysLockFromISR();
 969           chVTSetI(&keyboard_idle_timer, 4*MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp);
 970           osalSysUnlockFromISR();
 971         }
 972         usbSetupTransfer(usbp, NULL, 0, NULL);
 973         return TRUE;
 974         break;
 975       }
 976       break;
 977     }
 978   }
 979
 980   /* Handle the Get_Descriptor Request for HID class (not handled by the default hook) */
 981   if((usbp->setup[0] == 0x81) && (usbp->setup[1] == USB_REQ_GET_DESCRIPTOR)) {
 982     dp = usbp->config->get_descriptor_cb(usbp, usbp->setup[3], usbp->setup[2], get_hword(&usbp->setup[4]));
 983     if(dp == NULL)
 984       return FALSE;
 985     usbSetupTransfer(usbp, (uint8_t *)dp->ud_string, dp->ud_size, NULL);
 986     return TRUE;
 987   }
 988
 989   return FALSE;
 990 }
 991
 992 /* Start-of-frame callback */
 993 static void usb_sof_cb(USBDriver *usbp) {
 994   kbd_sof_cb(usbp);
 995 }
 996
 997
 998 /* USB driver configuration */
 999 static const USBConfig usbcfg = {
1000   usb_event_cb,                 /* USB events callback */
1001   usb_get_descriptor_cb,        /* Device GET_DESCRIPTOR request callback */
1002   usb_request_hook_cb,          /* Requests hook callback */
1003   usb_sof_cb                    /* Start Of Frame callback */
1004 };
1005
1006 /*
1007  * Initialize the USB driver
1008  */
1009 void init_usb_driver(USBDriver *usbp) {
1010   /*
1011    * Activates the USB driver and then the USB bus pull-up on D+.
1012    * Note, a delay is inserted in order to not have to disconnect the cable
1013    * after a reset.
1014    */
1015   usbDisconnectBus(usbp);
1016   chThdSleepMilliseconds(1500);
1017   usbStart(usbp, &usbcfg);
1018   usbConnectBus(usbp);
1019
1020   chVTObjectInit(&keyboard_idle_timer);
1021 #ifdef CONSOLE_ENABLE
1022   oqObjectInit(&console_queue, console_queue_buffer, sizeof(console_queue_buffer), console_queue_onotify, (void *)usbp);
1023   chVTObjectInit(&console_flush_timer);
1024 #endif
1025 }
1026
1027 /* ---------------------------------------------------------
1028  *                  Keyboard functions
1029  * ---------------------------------------------------------
1030  */
1031
1032 /* keyboard IN callback hander (a kbd report has made it IN) */
1033 void kbd_in_cb(USBDriver *usbp, usbep_t ep) {
1034   /* STUB */
1035   (void)usbp;
1036   (void)ep;
1037 }
1038
1039 #ifdef NKRO_ENABLE
1040 /* nkro IN callback hander (a nkro report has made it IN) */
1041 void nkro_in_cb(USBDriver *usbp, usbep_t ep) {
1042   /* STUB */
1043   (void)usbp;
1044   (void)ep;
1045 }
1046 #endif /* NKRO_ENABLE */
1047
1048 /* start-of-frame handler
1049  * TODO: i guess it would be better to re-implement using timers,
1050  *  so that this is not going to have to be checked every 1ms */
1051 void kbd_sof_cb(USBDriver *usbp) {
1052   (void)usbp;
1053 }
1054
1055 /* Idle requests timer code
1056  * callback (called from ISR, unlocked state) */
1057 static void keyboard_idle_timer_cb(void *arg) {
1058   USBDriver *usbp = (USBDriver *)arg;
1059
1060   osalSysLockFromISR();
1061
1062   /* check that the states of things are as they're supposed to */
1063   if(usbGetDriverStateI(usbp) != USB_ACTIVE) {
1064     /* do not rearm the timer, should be enabled on IDLE request */
1065     osalSysUnlockFromISR();
1066     return;
1067   }
1068
1069 #ifdef NKRO_ENABLE
1070   if(!keyboard_nkro && keyboard_idle) {
1071 #else /* NKRO_ENABLE */
1072   if(keyboard_idle) {
1073 #endif /* NKRO_ENABLE */
1074     /* TODO: are we sure we want the KBD_ENDPOINT? */
1075     osalSysUnlockFromISR();
1076     usbPrepareTransmit(usbp, KBD_ENDPOINT, (uint8_t *)&keyboard_report_sent, sizeof(keyboard_report_sent));
1077     osalSysLockFromISR();
1078     usbStartTransmitI(usbp, KBD_ENDPOINT);
1079     /* rearm the timer */
1080     chVTSetI(&keyboard_idle_timer, 4*MS2ST(keyboard_idle), keyboard_idle_timer_cb, (void *)usbp);
1081   }
1082
1083   /* do not rearm the timer if the condition above fails
1084    * it should be enabled again on either IDLE or SET_PROTOCOL requests */
1085   osalSysUnlockFromISR();
1086 }
1087
1088 /* LED status */
1089 uint8_t keyboard_leds(void) {
1090   return (uint8_t)(keyboard_led_stats & 0xFF);
1091 }
1092
1093 /* prepare and start sending a report IN
1094  * not callable from ISR or locked state */
1095 void send_keyboard(report_keyboard_t *report) {
1096   osalSysLock();
1097   if(usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) {
1098     osalSysUnlock();
1099     return;
1100   }
1101   osalSysUnlock();
1102
1103 #ifdef NKRO_ENABLE
1104   if(keyboard_nkro) {  /* NKRO protocol */
1105     usbPrepareTransmit(&USB_DRIVER, NKRO_ENDPOINT, (uint8_t *)report, sizeof(report_keyboard_t));
1106     osalSysLock();
1107     usbStartTransmitI(&USB_DRIVER, NKRO_ENDPOINT);
1108     osalSysUnlock();
1109   } else
1110 #endif /* NKRO_ENABLE */
1111   { /* boot protocol */
1112     usbPrepareTransmit(&USB_DRIVER, KBD_ENDPOINT, (uint8_t *)report, sizeof(report_keyboard_t));
1113     osalSysLock();
1114     usbStartTransmitI(&USB_DRIVER, KBD_ENDPOINT);
1115     osalSysUnlock();
1116   }
1117   keyboard_report_sent = *report;
1118 }
1119
1120 /* ---------------------------------------------------------
1121  *                     Mouse functions
1122  * ---------------------------------------------------------
1123  */
1124
1125 #ifdef MOUSE_ENABLE
1126
1127 /* mouse IN callback hander (a mouse report has made it IN) */
1128 void mouse_in_cb(USBDriver *usbp, usbep_t ep) {
1129   (void)usbp;
1130   (void)ep;
1131 }
1132
1133 void send_mouse(report_mouse_t *report) {
1134   osalSysLock();
1135   if(usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) {
1136     osalSysUnlock();
1137     return;
1138   }
1139   osalSysUnlock();
1140
1141   /* TODO: LUFA manually waits for the endpoint to become ready
1142    * for about 10ms for mouse, kbd, system; 1ms for nkro
1143    * is this really needed?
1144    */
1145
1146   usbPrepareTransmit(&USB_DRIVER, MOUSE_ENDPOINT, (uint8_t *)report, sizeof(report_mouse_t));
1147   osalSysLock();
1148   usbStartTransmitI(&USB_DRIVER, MOUSE_ENDPOINT);
1149   osalSysUnlock();
1150 }
1151
1152 #else /* MOUSE_ENABLE */
1153 void send_mouse(report_mouse_t *report) {
1154   (void)report;
1155 }
1156 #endif /* MOUSE_ENABLE */
1157
1158 /* ---------------------------------------------------------
1159  *                   Extrakey functions
1160  * ---------------------------------------------------------
1161  */
1162
1163 #ifdef EXTRAKEY_ENABLE
1164
1165 /* extrakey IN callback hander */
1166 void extra_in_cb(USBDriver *usbp, usbep_t ep) {
1167   /* STUB */
1168   (void)usbp;
1169   (void)ep;
1170 }
1171
1172 static void send_extra_report(uint8_t report_id, uint16_t data) {
1173   osalSysLock();
1174   if(usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) {
1175     osalSysUnlock();
1176     return;
1177   }
1178
1179   report_extra_t report = {
1180     .report_id = report_id,
1181     .usage = data
1182   };
1183
1184   osalSysUnlock();
1185   usbPrepareTransmit(&USB_DRIVER, EXTRA_ENDPOINT, (uint8_t *)&report, sizeof(report_extra_t));
1186   osalSysLock();
1187   usbStartTransmitI(&USB_DRIVER, EXTRA_ENDPOINT);
1188   osalSysUnlock();
1189 }
1190
1191 void send_system(uint16_t data) {
1192   send_extra_report(REPORT_ID_SYSTEM, data);
1193 }
1194
1195 void send_consumer(uint16_t data) {
1196   send_extra_report(REPORT_ID_CONSUMER, data);
1197 }
1198
1199 #else /* EXTRAKEY_ENABLE */
1200 void send_system(uint16_t data) {
1201   (void)data;
1202 }
1203 void send_consumer(uint16_t data) {
1204   (void)data;
1205 }
1206 #endif /* EXTRAKEY_ENABLE */
1207
1208 /* ---------------------------------------------------------
1209  *                   Console functions
1210  * ---------------------------------------------------------
1211  */
1212
1213 #ifdef CONSOLE_ENABLE
1214
1215 /* debug IN callback hander */
1216 void console_in_cb(USBDriver *usbp, usbep_t ep) {
1217   (void)ep;
1218   osalSysLockFromISR();
1219
1220   /* rearm the timer */
1221   chVTSetI(&console_flush_timer, MS2ST(CONSOLE_FLUSH_MS), console_flush_cb, (void *)usbp);
1222
1223   /* Check if there is data to send left in the output queue */
1224   if(chOQGetFullI(&console_queue) >= CONSOLE_EPSIZE) {
1225     osalSysUnlockFromISR();
1226     usbPrepareQueuedTransmit(usbp, CONSOLE_ENDPOINT, &console_queue, CONSOLE_EPSIZE);
1227     osalSysLockFromISR();
1228     usbStartTransmitI(usbp, CONSOLE_ENDPOINT);
1229   }
1230
1231   osalSysUnlockFromISR();
1232 }
1233
1234 /* Callback when data is inserted into the output queue
1235  * Called from a locked state */
1236 void console_queue_onotify(io_queue_t *qp) {
1237   USBDriver *usbp = qGetLink(qp);
1238
1239   if(usbGetDriverStateI(usbp) != USB_ACTIVE)
1240     return;
1241
1242   if(!usbGetTransmitStatusI(usbp, CONSOLE_ENDPOINT)
1243      && (chOQGetFullI(&console_queue) >= CONSOLE_EPSIZE)) {
1244     osalSysUnlock();
1245     usbPrepareQueuedTransmit(usbp, CONSOLE_ENDPOINT, &console_queue, CONSOLE_EPSIZE);
1246     osalSysLock();
1247     usbStartTransmitI(usbp, CONSOLE_ENDPOINT);
1248   }
1249 }
1250
1251 /* Flush timer code
1252  * callback (called from ISR, unlocked state) */
1253 static void console_flush_cb(void *arg) {
1254   USBDriver *usbp = (USBDriver *)arg;
1255   size_t i, n;
1256   uint8_t buf[CONSOLE_EPSIZE]; /* TODO: a solution without extra buffer? */
1257   osalSysLockFromISR();
1258
1259   /* check that the states of things are as they're supposed to */
1260   if(usbGetDriverStateI(usbp) != USB_ACTIVE) {
1261     /* rearm the timer */
1262     chVTSetI(&console_flush_timer, MS2ST(CONSOLE_FLUSH_MS), console_flush_cb, (void *)usbp);
1263     osalSysUnlockFromISR();
1264     return;
1265   }
1266
1267   /* don't do anything if the queue is empty or has enough stuff in it */
1268   if(((n = oqGetFullI(&console_queue)) == 0) || (n >= CONSOLE_EPSIZE)) {
1269     /* rearm the timer */
1270     chVTSetI(&console_flush_timer, MS2ST(CONSOLE_FLUSH_MS), console_flush_cb, (void *)usbp);
1271     osalSysUnlockFromISR();
1272     return;
1273   }
1274
1275   /* there's stuff hanging in the queue - so dequeue and send */
1276   for(i = 0; i < n; i++)
1277     buf[i] = (uint8_t)oqGetI(&console_queue);
1278   for(i = n; i < CONSOLE_EPSIZE; i++)
1279     buf[i] = 0;
1280   osalSysUnlockFromISR();
1281   usbPrepareTransmit(usbp, CONSOLE_ENDPOINT, buf, CONSOLE_EPSIZE);
1282   osalSysLockFromISR();
1283   (void)usbStartTransmitI(usbp, CONSOLE_ENDPOINT);
1284
1285   /* rearm the timer */
1286   chVTSetI(&console_flush_timer, MS2ST(CONSOLE_FLUSH_MS), console_flush_cb, (void *)usbp);
1287   osalSysUnlockFromISR();
1288 }
1289
1290
1291 int8_t sendchar(uint8_t c) {
1292   osalSysLock();
1293   if(usbGetDriverStateI(&USB_DRIVER) != USB_ACTIVE) {
1294     osalSysUnlock();
1295     return 0;
1296   }
1297   osalSysUnlock();
1298   /* should get suspended and wait if the queue is full
1299    * but it's not blocking even if noone is listening,
1300    *  because the USB packets are sent anyway */
1301   return(chOQPut(&console_queue, c));
1302 }
1303
1304 #else /* CONSOLE_ENABLE */
1305 int8_t sendchar(uint8_t c) {
1306   (void)c;
1307   return 0;
1308 }
1309 #endif /* CONSOLE_ENABLE */
1310
1311 void sendchar_pf(void *p, char c) {
1312   (void)p;
1313   sendchar((uint8_t)c);
1314 }