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can: Driver for the Microchip MCP251x SPI CAN controllers

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Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christian Pellegrin 2009-11-02 23:07:00 +00:00 committed by David S. Miller
parent 81adee47df
commit e0000163e3
4 changed files with 1207 additions and 0 deletions
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6
drivers/net/can/Kconfig
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@ -102,6 +102,12 @@ config CAN_TI_HECC
Driver for TI HECC (High End CAN Controller) module found on many
TI devices. The device specifications are available from www.ti.com
config CAN_MCP251X
tristate "Microchip MCP251x SPI CAN controllers"
depends on CAN_DEV && SPI
---help---
Driver for the Microchip MCP251x SPI CAN controllers.
config CAN_DEBUG_DEVICES
bool "CAN devices debugging messages"
depends on CAN

1
drivers/net/can/Makefile
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@ -12,5 +12,6 @@ obj-y += usb/
obj-$(CONFIG_CAN_SJA1000) += sja1000/
obj-$(CONFIG_CAN_AT91) += at91_can.o
obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o
obj-$(CONFIG_CAN_MCP251X) += mcp251x.o
ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG

1164
drivers/net/can/mcp251x.c Normal file
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File diff suppressed because it is too large Load Diff

36
include/linux/can/platform/mcp251x.h Normal file
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@ -0,0 +1,36 @@
#ifndef __CAN_PLATFORM_MCP251X_H__
#define __CAN_PLATFORM_MCP251X_H__
/*
*
* CAN bus driver for Microchip 251x CAN Controller with SPI Interface
*
*/
#include <linux/spi/spi.h>
/**
* struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
* @oscillator_frequency: - oscillator frequency in Hz
* @model: - actual type of chip
* @board_specific_setup: - called before probing the chip (power,reset)
* @transceiver_enable: - called to power on/off the transceiver
* @power_enable: - called to power on/off the mcp *and* the
* transceiver
*
* Please note that you should define power_enable or transceiver_enable or
* none of them. Defining both of them is no use.
*
*/
struct mcp251x_platform_data {
unsigned long oscillator_frequency;
int model;
#define CAN_MCP251X_MCP2510 0
#define CAN_MCP251X_MCP2515 1
int (*board_specific_setup)(struct spi_device *spi);
int (*transceiver_enable)(int enable);
int (*power_enable) (int enable);
};
#endif /* __CAN_PLATFORM_MCP251X_H__ */