release/src-rt-6.x.4708/linux/linux-2.6.36/include/linux/can/platform/mcp251x.h

   1 #ifndef __CAN_PLATFORM_MCP251X_H__
   2 #define __CAN_PLATFORM_MCP251X_H__
   3
   4 /*
   5  *
   6  * CAN bus driver for Microchip 251x CAN Controller with SPI Interface
   7  *
   8  */
   9
  10 #include <linux/spi/spi.h>
  11
  12 /**
  13  * struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
  14  * @oscillator_frequency:       - oscillator frequency in Hz
  15  * @model:                      - actual type of chip
  16  * @board_specific_setup:       - called before probing the chip (power,reset)
  17  * @transceiver_enable:         - called to power on/off the transceiver
  18  * @power_enable:               - called to power on/off the mcp *and* the
  19  *                                transceiver
  20  *
  21  * Please note that you should define power_enable or transceiver_enable or
  22  * none of them. Defining both of them is no use.
  23  *
  24  */
  25
  26 struct mcp251x_platform_data {
  27         unsigned long oscillator_frequency;
  28         int model;
  29 #define CAN_MCP251X_MCP2510 0x2510
  30 #define CAN_MCP251X_MCP2515 0x2515
  31         int (*board_specific_setup)(struct spi_device *spi);
  32         int (*transceiver_enable)(int enable);
  33         int (*power_enable) (int enable);
  34 };
  35
  36 #endif /* __CAN_PLATFORM_MCP251X_H__ */