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authorChristian Pellegrin <chripell@fsfe.org>2009-11-03 02:07:00 +0300
committerDavid S. Miller <davem@davemloft.net>2009-11-08 12:50:21 +0300
commite0000163e30eeb112b41486ea113fd54f64e1f17 (patch)
tree58f40d78882dc4eae86bc71145667f125354d39a /include/linux/can
parent81adee47dfb608df3ad0b91d230fb3cef75f0060 (diff)
downloadlinux-e0000163e30eeb112b41486ea113fd54f64e1f17.tar.xz
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>
Diffstat (limited to 'include/linux/can')
-rw-r--r--include/linux/can/platform/mcp251x.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
new file mode 100644
index 000000000000..1448177d86d5
--- /dev/null
+++ b/include/linux/can/platform/mcp251x.h
@@ -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__ */