include/linux/spi/libertas_spi.h

   1 /*
   2  * board-specific data for the libertas_spi driver.
   3  *
   4  * Copyright 2008 Analog Devices Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or (at
   9  * your option) any later version.
  10  */
  11 #ifndef _LIBERTAS_SPI_H_
  12 #define _LIBERTAS_SPI_H_
  13
  14 struct spi_device;
  15
  16 struct libertas_spi_platform_data {
  17         /* There are two ways to read data from the WLAN module's SPI
  18          * interface. Setting 0 or 1 here controls which one is used.
  19          *
  20          * Usually you want to set use_dummy_writes = 1.
  21          * However, if that doesn't work or if you are using a slow SPI clock
  22          * speed, you may want to use 0 here. */
  23         u16 use_dummy_writes;
  24
  25         /* GPIO number to use as chip select */
  26         u16 gpio_cs;
  27
  28         /* Board specific setup/teardown */
  29         int (*setup)(struct spi_device *spi);
  30         int (*teardown)(struct spi_device *spi);
  31 };
  32 #endif