From d1949f2737e44b1e0cdc6695ab867bc70002fcea Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Fri, 24 Aug 2012 17:25:14 +0100 Subject: [bitbash] Add optional open() and close() methods for bit-bashing interfaces Signed-off-by: Michael Brown --- src/include/ipxe/bitbash.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'src/include/ipxe/bitbash.h') diff --git a/src/include/ipxe/bitbash.h b/src/include/ipxe/bitbash.h index 62b54b10f..69d5d9e3e 100644 --- a/src/include/ipxe/bitbash.h +++ b/src/include/ipxe/bitbash.h @@ -13,6 +13,18 @@ struct bit_basher; /** Bit-bashing operations */ struct bit_basher_operations { + /** + * Open bit-bashing interface (optional) + * + * @v basher Bit-bashing interface + */ + void ( * open ) ( struct bit_basher *basher ); + /** + * Close bit-bashing interface (optional) + * + * @v basher Bit-bashing interface + */ + void ( * close ) ( struct bit_basher *basher ); /** * Set/clear output bit * @@ -45,6 +57,26 @@ struct bit_basher { struct bit_basher_operations *op; }; +/** + * Open bit-bashing interface + * + * @v basher Bit-bashing interface + */ +static inline void open_bit ( struct bit_basher *basher ) { + if ( basher->op->open ) + basher->op->open ( basher ); +} + +/** + * Close bit-bashing interface + * + * @v basher Bit-bashing interface + */ +static inline void close_bit ( struct bit_basher *basher ) { + if ( basher->op->close ) + basher->op->close ( basher ); +} + extern void write_bit ( struct bit_basher *basher, unsigned int bit_id, unsigned long data ); extern int read_bit ( struct bit_basher *basher, unsigned int bit_id ); -- cgit