src/main/pg/bus_spi.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_SPI
  24
  25 #include "drivers/dma_reqmap.h"
  26 #include "drivers/io.h"
  27
  28 #include "pg/bus_spi.h"
  29 #include "pg/pg.h"
  30 #include "pg/pg_ids.h"
  31
  32 #include "bus_spi.h"
  33
  34 #ifndef SPI1_SCK_PIN
  35 #define SPI1_SCK_PIN    NONE
  36 #define SPI1_SDI_PIN    NONE
  37 #define SPI1_SDO_PIN    NONE
  38 #endif
  39
  40 #ifndef SPI2_SCK_PIN
  41 #define SPI2_SCK_PIN    NONE
  42 #define SPI2_SDI_PIN    NONE
  43 #define SPI2_SDO_PIN    NONE
  44 #endif
  45
  46 #ifndef SPI3_SCK_PIN
  47 #define SPI3_SCK_PIN    NONE
  48 #define SPI3_SDI_PIN    NONE
  49 #define SPI3_SDO_PIN    NONE
  50 #endif
  51
  52 #ifndef SPI4_SCK_PIN
  53 #define SPI4_SCK_PIN    NONE
  54 #define SPI4_SDI_PIN    NONE
  55 #define SPI4_SDO_PIN    NONE
  56 #endif
  57
  58 #ifndef SPI5_SCK_PIN
  59 #define SPI5_SCK_PIN    NONE
  60 #define SPI5_SDI_PIN    NONE
  61 #define SPI5_SDO_PIN    NONE
  62 #endif
  63
  64 #ifndef SPI6_SCK_PIN
  65 #define SPI6_SCK_PIN    NONE
  66 #define SPI6_SDI_PIN    NONE
  67 #define SPI6_SDO_PIN    NONE
  68 #endif
  69
  70 typedef struct spiDefaultConfig_s {
  71     SPIDevice device;
  72     ioTag_t sck;
  73     ioTag_t miso;
  74     ioTag_t mosi;
  75     dmaoptValue_t txDmaopt;
  76     dmaoptValue_t rxDmaopt;
  77 } spiDefaultConfig_t;
  78
  79 const spiDefaultConfig_t spiDefaultConfig[] = {
  80 #ifdef USE_SPI_DEVICE_1
  81     { SPIDEV_1, IO_TAG(SPI1_SCK_PIN), IO_TAG(SPI1_SDI_PIN ), IO_TAG(SPI1_SDO_PIN ), SPI1_TX_DMA_OPT, SPI1_RX_DMA_OPT },
  82 #endif
  83 #ifdef USE_SPI_DEVICE_2
  84     { SPIDEV_2, IO_TAG(SPI2_SCK_PIN), IO_TAG(SPI2_SDI_PIN ), IO_TAG(SPI2_SDO_PIN ), SPI2_TX_DMA_OPT, SPI2_RX_DMA_OPT },
  85 #endif
  86 #ifdef USE_SPI_DEVICE_3
  87     { SPIDEV_3, IO_TAG(SPI3_SCK_PIN), IO_TAG(SPI3_SDI_PIN ), IO_TAG(SPI3_SDO_PIN ), SPI3_TX_DMA_OPT, SPI3_RX_DMA_OPT },
  88 #endif
  89 #ifdef USE_SPI_DEVICE_4
  90     { SPIDEV_4, IO_TAG(SPI4_SCK_PIN), IO_TAG(SPI4_SDI_PIN ), IO_TAG(SPI4_SDO_PIN ), SPI4_TX_DMA_OPT, SPI4_RX_DMA_OPT },
  91 #endif
  92 #ifdef USE_SPI_DEVICE_5
  93     { SPIDEV_5, IO_TAG(SPI5_SCK_PIN), IO_TAG(SPI5_SDI_PIN), IO_TAG(SPI5_SDO_PIN), SPI5_TX_DMA_OPT, SPI5_RX_DMA_OPT },
  94 #endif
  95 #ifdef USE_SPI_DEVICE_6
  96     { SPIDEV_6, IO_TAG(SPI6_SCK_PIN), IO_TAG(SPI6_SDI_PIN), IO_TAG(SPI6_SDO_PIN), SPI6_TX_DMA_OPT, SPI6_RX_DMA_OPT },
  97 #endif
  98 };
  99
 100 PG_REGISTER_ARRAY_WITH_RESET_FN(spiPinConfig_t, SPIDEV_COUNT, spiPinConfig, PG_SPI_PIN_CONFIG, 1);
 101
 102 void pgResetFn_spiPinConfig(spiPinConfig_t *spiPinConfig)
 103 {
 104     for (size_t i = 0; i < SPIDEV_COUNT; i++) {
 105         spiPinConfig[i].txDmaopt = -1;
 106         spiPinConfig[i].rxDmaopt = -1;
 107     }
 108
 109     for (size_t i = 0 ; i < ARRAYLEN(spiDefaultConfig) ; i++) {
 110         const spiDefaultConfig_t *defconf = &spiDefaultConfig[i];
 111         spiPinConfig[defconf->device].ioTagSck = defconf->sck;
 112         spiPinConfig[defconf->device].ioTagMiso = defconf->miso;
 113         spiPinConfig[defconf->device].ioTagMosi = defconf->mosi;
 114         spiPinConfig[defconf->device].txDmaopt = defconf->txDmaopt;
 115         spiPinConfig[defconf->device].rxDmaopt = defconf->rxDmaopt;
 116     }
 117 }
 118 #endif