USBH: testhal example: improve support for multiple FAT devices

1 files changed, 59 insertions, 0 deletions

diff --git a/os/various/fatfs_bindings/fatfs_devices.h b/os/various/fatfs_bindings/fatfs_devices.h
new file mode 100644
index 0000000..5ec05ca
--- /dev/null
+++ b/os/various/fatfs_bindings/fatfs_devices.h
@@ -0,0 +1,59 @@
+/*
+    ChibiOS - Copyright (C) 2006..2017 Giovanni Di Sirio
+              Copyright (C) 2015..2017 Diego Ismirlian, (dismirlian (at) google's mail)
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef FATFS_DEVICES_H_
+#define FATFS_DEVICES_H_
+
+#include "hal.h"
+
+#if HAL_USE_MMC_SPI && HAL_USE_SDC
+#error "cannot specify both MMC_SPI and SDC drivers"
+#endif
+
+#if HAL_USE_MMC_SPI
+extern MMCDriver MMCD1;
+#elif HAL_USE_SDC
+extern SDCDriver SDCD1;
+#elif HAL_USBH_USE_MSD
+
+#else
+#error "MMC_SPI, SDC or USBH_MSD driver must be specified"
+#endif
+
+/*-----------------------------------------------------------------------*/
+/* Correspondence between physical drive number and physical drive.      */
+#if HAL_USE_MMC_SPI
+#define FATFSDEV_MMC         0
+#define FATFSDEV_MMC_DRIVE   "0:"
+#endif
+
+#if HAL_USE_SDC
+#define FATFSDEV_SDC         0
+#define FATFSDEV_SDC_DRIVE   "0:"
+#endif
+
+#if HAL_USBH_USE_MSD
+#if defined(FATFSDEV_MMC) || defined(FATFSDEV_SDC)
+#define FATFSDEV_MSDLUN0         1
+#define FATFSDEV_MSDLUN0_DRIVE   "1:"
+#else
+#define FATFSDEV_MSDLUN0         0
+#define FATFSDEV_MSDLUN0_DRIVE   "0:"
+#endif
+#endif
+
+#endif /* FATFS_DEVICES_H_ */