protocol/usb_hid/USB_Host_Shield_2.0/PSBuzz.cpp

   1 /* Copyright (C) 2014 Kristian Lauszus, TKJ Electronics. All rights reserved.
   2
   3  This software may be distributed and modified under the terms of the GNU
   4  General Public License version 2 (GPL2) as published by the Free Software
   5  Foundation and appearing in the file GPL2.TXT included in the packaging of
   6  this file. Please note that GPL2 Section 2[b] requires that all works based
   7  on this software must also be made publicly available under the terms of
   8  the GPL2 ("Copyleft").
   9
  10  Contact information
  11  -------------------
  12
  13  Kristian Lauszus, TKJ Electronics
  14  Web      :  http://www.tkjelectronics.com
  15  e-mail   :  kristianl@tkjelectronics.com
  16  */
  17
  18 #include "PSBuzz.h"
  19
  20 // To enable serial debugging see "settings.h"
  21 //#define PRINTREPORT // Uncomment to print the report send by the PS Buzz Controllers
  22
  23 void PSBuzz::ParseHIDData(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) {
  24         if (HIDUniversal::VID == PSBUZZ_VID && HIDUniversal::PID == PSBUZZ_PID && len > 2 && buf) {
  25 #ifdef PRINTREPORT
  26                 Notify(PSTR("\r\n"), 0x80);
  27                 for (uint8_t i = 0; i < len; i++) {
  28                         D_PrintHex<uint8_t > (buf[i], 0x80);
  29                         Notify(PSTR(" "), 0x80);
  30                 }
  31 #endif
  32                 memcpy(&psbuzzButtons, buf + 2, min((uint8_t)(len - 2), sizeof(psbuzzButtons)));
  33
  34                 if (psbuzzButtons.val != oldButtonState.val) { // Check if anything has changed
  35                         buttonClickState.val = psbuzzButtons.val & ~oldButtonState.val; // Update click state variable
  36                         oldButtonState.val = psbuzzButtons.val;
  37                 }
  38         }
  39 };
  40
  41 uint8_t PSBuzz::OnInitSuccessful() {
  42         if (HIDUniversal::VID == PSBUZZ_VID && HIDUniversal::PID == PSBUZZ_PID) {
  43                 Reset();
  44                 if (pFuncOnInit)
  45                         pFuncOnInit(); // Call the user function
  46                 else
  47                         setLedOnAll(); // Turn the LED on, on all four controllers
  48         };
  49         return 0;
  50 };
  51
  52 bool PSBuzz::getButtonPress(ButtonEnum b, uint8_t controller) {
  53         return psbuzzButtons.val & (1UL << (b + 5 * controller)); // Each controller uses 5 bits, so the value is shifted 5 for each controller
  54 };
  55
  56 bool PSBuzz::getButtonClick(ButtonEnum b, uint8_t controller) {
  57         uint32_t mask = (1UL << (b + 5 * controller)); // Each controller uses 5 bits, so the value is shifted 5 for each controller
  58         bool click = buttonClickState.val & mask;
  59         buttonClickState.val &= ~mask; // Clear "click" event
  60         return click;
  61 };
  62
  63 // Source: http://www.developerfusion.com/article/84338/making-usb-c-friendly/ and https://github.com/torvalds/linux/blob/master/drivers/hid/hid-sony.c
  64 void PSBuzz::setLedRaw(bool value, uint8_t controller) {
  65         ledState[controller] = value; // Save value for next time it is called
  66
  67         uint8_t buf[7];
  68         buf[0] = 0x00;
  69         buf[1] = ledState[0] ? 0xFF : 0x00;
  70         buf[2] = ledState[1] ? 0xFF : 0x00;
  71         buf[3] = ledState[2] ? 0xFF : 0x00;
  72         buf[4] = ledState[3] ? 0xFF : 0x00;
  73         buf[5] = 0x00;
  74         buf[6] = 0x00;
  75
  76         PSBuzz_Command(buf, sizeof(buf));
  77 };
  78
  79 void PSBuzz::PSBuzz_Command(uint8_t *data, uint16_t nbytes) {
  80         // bmRequest = Host to device (0x00) | Class (0x20) | Interface (0x01) = 0x21, bRequest = Set Report (0x09), Report ID (0x00), Report Type (Output 0x02), interface (0x00), datalength, datalength, data)
  81         pUsb->ctrlReq(bAddress, epInfo[0].epAddr, bmREQ_HID_OUT, HID_REQUEST_SET_REPORT, 0x00, 0x02, 0x00, nbytes, nbytes, data, NULL);
  82 };