src/main/build/debug_pin.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 "platform.h"
  22
  23 #ifdef USE_DEBUG_PIN
  24
  25 #include "drivers/io.h"
  26 #include "drivers/io_impl.h"
  27
  28 typedef struct dbgPin_s {
  29     ioTag_t tag;
  30     GPIO_TypeDef *gpio;
  31     uint32_t setBSRR;
  32     uint32_t resetBSRR;
  33 } dbgPin_t;
  34
  35 __weak dbgPin_t dbgPins[] = {
  36     { .tag = IO_TAG(NONE) },
  37 };
  38
  39 void dbgPinInit(void)
  40 {
  41     for (unsigned i = 0; i < ARRAYLEN(dbgPins); i++) {
  42         dbgPin_t *dbgPin = &dbgPins[i];
  43         IO_t io = IOGetByTag(dbgPin->tag);
  44         if (!io) {
  45             continue;
  46         }
  47         IOConfigGPIO(io, IOCFG_OUT_PP);
  48         dbgPin->gpio = IO_GPIO(io);
  49         int pinSrc = IO_GPIO_PinSource(io);
  50         dbgPin->setBSRR = (1 << pinSrc);
  51         dbgPin->resetBSRR = (1 << (pinSrc + 16));
  52     }
  53 }
  54
  55 void dbgPinHi(int index)
  56 {
  57     if ((unsigned)index >= ARRAYLEN(dbgPins)) {
  58         return;
  59     }
  60
  61     dbgPin_t *dbgPin = &dbgPins[index];
  62     if (dbgPin->gpio) {
  63 #if defined(STM32F7) || defined(STM32H7)
  64         dbgPin->gpio->BSRR = dbgPin->setBSRR;
  65 #else
  66         dbgPin->gpio->BSRRL = dbgPin->setBSRR;
  67 #endif
  68     }
  69 }
  70
  71 void dbgPinLo(int index)
  72 {
  73     if ((unsigned)index > ARRAYLEN(dbgPins)) {
  74         return;
  75     }
  76
  77     dbgPin_t *dbgPin = &dbgPins[index];
  78
  79     if (dbgPin->gpio) {
  80 #if defined(STM32F7) || defined(STM32H7)
  81         dbgPin->gpio->BSRR = dbgPin->resetBSRR;
  82 #else
  83         dbgPin->gpio->BSRRL = dbgPin->resetBSRR;
  84 #endif
  85     }
  86 }
  87
  88 #endif