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can: Driver for the Microchip MCP251x SPI CAN controllers 

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 Driver for TI HECC (High End CAN Controller) module found on many
TI devices. The device specifications are available from www.ti.com 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 config CAN_DEBUG_DEVICES
bool "CAN devices debugging messages" bool "CAN devices debugging messages"
depends on CAN 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_SJA1000) += sja1000/
obj-$(CONFIG_CAN_AT91) += at91_can.o obj-$(CONFIG_CAN_AT91) += at91_can.o
obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o
obj-$(CONFIG_CAN_MCP251X) += mcp251x.o
ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG 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__ */