74790c8033
The original code hard-coded card detection to the low when card is inserted and high when not. This might not be true on every board because it depends on the slot and wiring used. The second reason is because it is also possible to detect card with D3 pin pull-up when the slot does not provide dedicated card detection switch. This introduces new argument to the sam_hsmci_initialize to allow invert of card detection pin. It also applies this invert to existing boards as that was the state up to this point.
91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/****************************************************************************
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* boards/arm/samv7/common/include/board_hsmci.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_SAMV7_COMMON_INCLUDE_BOARD_HSMCI_H
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#define __BOARDS_ARM_SAMV7_COMMON_INCLUDE_BOARD_HSMCI_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "sam_gpio.h"
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Functions Definitions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_hsmci_initialize
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*
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* Description:
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* Perform architecture specific initialization
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*
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****************************************************************************/
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int sam_hsmci_initialize(int slotno, int minor, gpio_pinset_t cdcfg,
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int cdirq, bool cdinvert);
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/****************************************************************************
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* Name: sam_cardinserted
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*
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* Description:
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* Check if a card is inserted into the selected HSMCI slot
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*
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****************************************************************************/
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bool sam_cardinserted(int slotno);
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/****************************************************************************
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* Name: sam_writeprotected
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*
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* Description:
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* Check if the card in the MMCSD slot is write protected
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*
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****************************************************************************/
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bool sam_writeprotected(int slotno);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_SAMV7_COMMON_INCLUDE_BOARD_HSMCI_H */
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