-
-config B43_DMA
- bool
- depends on B43
-config B43_PIO
- bool
- depends on B43
-
-choice
- prompt "Broadcom 43xx data transfer mode"
- depends on B43
- default B43_DMA_AND_PIO_MODE
-
-config B43_DMA_AND_PIO_MODE
- bool "DMA + PIO"
- select B43_DMA
- select B43_PIO
- ---help---
- Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
- data transfer modes.
- The actually used mode is selectable through the module
- parameter "pio". If the module parameter is pio=0, DMA is used.
- Otherwise PIO is used. DMA is default.
-
- If unsure, choose this option.
-
-config B43_DMA_MODE
- bool "DMA (Direct Memory Access) only"
- select B43_DMA
- ---help---
- Only include Direct Memory Access (DMA).
- This reduces the size of the driver module, by omitting the PIO code.
-
-config B43_PIO_MODE
- bool "PIO (Programmed I/O) only"
- select B43_PIO
- ---help---
- Only include Programmed I/O (PIO).
- This reduces the size of the driver module, by omitting the DMA code.
- Please note that PIO transfers are slow (compared to DMA).
-
- Also note that not all devices of the 43xx series support PIO.
- The 4306 (Apple Airport Extreme and others) supports PIO, while
- the 4318 is known to _not_ support PIO.
-
- Only use PIO, if DMA does not work for you.
-
-endchoice