src/main/pg/sdcard.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
  24 #include "platform.h"
  25
  26 #ifdef USE_SDCARD
  27
  28 #include "pg/pg.h"
  29 #include "pg/pg_ids.h"
  30
  31 #include "sdcard.h"
  32 #include "drivers/bus_spi.h"
  33 #include "drivers/io.h"
  34 #include "drivers/dma.h"
  35 #include "drivers/dma_reqmap.h"
  36
  37 PG_REGISTER_WITH_RESET_FN(sdcardConfig_t, sdcardConfig, PG_SDCARD_CONFIG, 2);
  38
  39 void pgResetFn_sdcardConfig(sdcardConfig_t *config)
  40 {
  41     config->cardDetectTag = IO_TAG(SDCARD_DETECT_PIN);
  42     config->cardDetectInverted = SDCARD_DETECT_IS_INVERTED;
  43
  44     // We can safely handle SPI and SDIO cases separately on custom targets, as these are exclusive per target.
  45     // On generic targets, SPI has precedence over SDIO; SDIO must be post-flash configured.
  46     config->device = SPI_DEV_TO_CFG(SPIINVALID);
  47
  48 #ifdef CONFIG_IN_SDCARD
  49     // CONFIG_ID_SDDCARD requires a default mode.
  50 #if defined(USE_SDCARD_SDIO)
  51     config->mode = SDCARD_MODE_SDIO;
  52 #elif defined(USE_SDCARD_SPI)
  53     config->mode = SDCARD_MODE_SPI;
  54 #endif
  55 #else
  56     config->mode = SDCARD_MODE_NONE;
  57 #endif
  58
  59 #if defined(STM32H7) && defined(USE_SDCARD_SDIO) // H7 only for now, likely should be applied to F4/F7 too
  60     config->mode = SDCARD_MODE_SDIO;
  61 #endif
  62
  63 #ifdef USE_SDCARD_SPI
  64     // These settings do not work for Unified Targets
  65     // They are only left in place to support legacy targets
  66     SPIDevice spidevice = spiDeviceByInstance(SDCARD_SPI_INSTANCE);
  67     config->device = SPI_DEV_TO_CFG(spidevice);
  68     config->chipSelectTag = IO_TAG(SDCARD_SPI_CS_PIN);
  69
  70     if (spidevice != SPIINVALID && config->chipSelectTag) {
  71         config->mode = SDCARD_MODE_SPI;
  72     }
  73 #endif
  74 }
  75 #endif