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Added new pgm_read_ptr() macro to Common.h for reading of pointers out of flash memory space.

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Added new SWAPENDIAN_16() and SWAPENDIAN_32() macros to Common.h for statically initialized variables at compile time.
This commit is contained in:
Dean Camera 2010-06-22 07:06:27 +00:00
parent 988604b25d
commit e621ab33be
5 changed files with 44 additions and 34 deletions
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8
Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h
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@ -60,14 +60,6 @@
#define SDP_PDU_SERVICEATTRIBUTERESPONSE 0x05
#define SDP_PDU_SERVICESEARCHATTRIBUTEREQUEST 0x06
#define SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE 0x07
/** Convenience macro - read a pointer out of PROGMEM space.
*
* \param[in] x Address of the pointer to read
*
* \return Pointer retrieved from PROGMEM space
*/
#define pgm_read_ptr(x) (void*)pgm_read_word(x)
/* Enums: */
/** Data sizes for SDP Data Element headers, to indicate the size of the data contained in the element. When creating

21
Demos/Host/Incomplete/BluetoothHost/Lib/SDPServices.h
View file

@ -58,26 +58,7 @@
#define SDP_ATTRIBUTE_ID_LANGUAGEBASEATTROFFSET 0x0006
#define SDP_ATTRIBUTE_ID_SERVICENAME 0x0100
#define SDP_ATTRIBUTE_ID_SERVICEDESCRIPTION 0x0101
/** Swaps the byte ordering of a 16-bit value at compile time. Do not use this macro for swapping byte orderings
* of dynamic values computed at runtime -- use SwapEndian_16() instead.
*
* \param[in] x 16-bit value whose byte ordering is to be swapped
*
* \return Input value with the byte ordering reversed
*/
#define SWAPENDIAN_16(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
/** Swaps the byte ordering of a 32-bit value at compile time. Do not use this macro for swapping byte orderings
* of dynamic values computed at runtime -- use SwapEndian_32() instead.
*
* \param[in] x 32-bit value whose byte ordering is to be swapped
*
* \return Input value with the byte ordering reversed
*/
#define SWAPENDIAN_32(x) ((((x) & 0xFF000000UL) >> 24UL) | (((x) & 0x00FF0000UL) >> 8UL) | \
(((x) & 0x0000FF00UL) << 8UL) | (((x) & 0x000000FFUL) << 24UL))
/** Terminator for a service attribute table of type \ref ServiceAttributeTable_t. */
#define SERVICE_ATTRIBUTE_TABLE_TERMINATOR {.Data = NULL}