src/main/target/FF_FORTINIF4/hardware_revision.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdbool.h>
  22 #include <stdint.h>
  23 #include <stdlib.h>
  24
  25 #include "platform.h"
  26
  27 #include "build/build_config.h"
  28
  29 #include "drivers/io.h"
  30 #include "drivers/time.h"
  31
  32 #include "hardware_revision.h"
  33
  34 uint8_t hardwareRevision = FORTINIF4_UNKNOWN;
  35
  36 static IO_t HWDetectPinA = IO_NONE;
  37 static IO_t HWDetectPinB = IO_NONE;
  38
  39 void detectHardwareRevision(void)
  40 {
  41     HWDetectPinA = IOGetByTag(IO_TAG(HW_PIN_A));
  42     IOInit(HWDetectPinA, OWNER_SYSTEM, 0);
  43     IOConfigGPIO(HWDetectPinA, IOCFG_IPU);
  44     HWDetectPinB = IOGetByTag(IO_TAG(HW_PIN_B));
  45     IOInit(HWDetectPinB, OWNER_SYSTEM, 0);
  46     IOConfigGPIO(HWDetectPinB, IOCFG_IPU);
  47
  48     delayMicroseconds(10);  // allow configuration to settle
  49
  50     // Check hardware revision
  51     if (IORead(HWDetectPinB)) {
  52         if (IORead(HWDetectPinA)) {
  53             hardwareRevision = FORTINIF4_REV_1;
  54         } else {
  55             hardwareRevision = FORTINIF4_REV_2;
  56         }
  57     } else {
  58         if (IORead(HWDetectPinA)) {
  59             hardwareRevision = FORTINIF4_REV_4;
  60         } else {
  61             hardwareRevision = FORTINIF4_REV_3;
  62         }
  63     }
  64 }
  65
  66 void updateHardwareRevision(void)
  67 {
  68 }