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/* canbus.h
*
* This include file contains all canbus IO definitions
*
* Written by Jay Monkman (jmonkman@frasca.com)
*
* COPYRIGHT (c) 1998
* Frasca International, Inc.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id:
*/
#ifndef __CANBUS_H_
#define __CANBUS_H_
#include <rtems.h>
typedef struct i82527_msg_t_ {
uint8_t ctrl0 __attribute__ ((packed)); /* Control 0 register */
uint8_t ctrl1 __attribute__ ((packed)); /* Control 1 register */
uint32_t arb __attribute__ ((packed)); /* Arbitration reg */
uint8_t cfg __attribute__ ((packed)); /* Message config reg */
uint8_t data[8] __attribute__ ((packed)); /* Actual message */
} i82527_msg_t;
typedef struct i82527_t_ {
uint8_t ctrl __attribute__ ((packed)); /* Control register */
uint8_t status __attribute__ ((packed)); /* Status register */
uint8_t cir __attribute__ ((packed)); /* CPU interface reg */
uint8_t _res0 __attribute__ ((packed));
uint16_t hsr __attribute__ ((packed)); /* High speed read */
uint16_t gms __attribute__ ((packed)); /* Global Mask - std */
uint32_t gml __attribute__ ((packed)); /* Global Mask - long */
uint32_t mlm __attribute__ ((packed)); /* Mask last message */
i82527_msg_t msg1 __attribute__ ((packed)); /* Message 1 */
uint8_t clkout __attribute__ ((packed)); /* CLKOUT register */
i82527_msg_t msg2 __attribute__ ((packed)); /* Message 2 */
uint8_t bcr __attribute__ ((packed)); /* Bus config register */
i82527_msg_t msg3 __attribute__ ((packed)); /* Message 3 */
uint8_t btr0 __attribute__ ((packed)); /* Bit timing reg 0 */
i82527_msg_t msg4 __attribute__ ((packed)); /* Message 4 */
uint8_t btr1 __attribute__ ((packed)); /* Bit timing reg 1 */
i82527_msg_t msg5 __attribute__ ((packed)); /* Message 5 */
uint8_t intr __attribute__ ((packed)); /* Interrupt register */
i82527_msg_t msg6 __attribute__ ((packed)); /* Message 6 */
uint8_t _res1 __attribute__ ((packed));
i82527_msg_t msg7 __attribute__ ((packed)); /* Message 7 */
uint8_t _res2 __attribute__ ((packed));
i82527_msg_t msg8 __attribute__ ((packed)); /* Message 8 */
uint8_t _res3 __attribute__ ((packed));
i82527_msg_t msg9 __attribute__ ((packed)); /* Message 9 */
uint8_t p1conf __attribute__ ((packed)); /* Port 1 config */
i82527_msg_t msg10 __attribute__ ((packed)); /* Message 10 */
uint8_t p2conf __attribute__ ((packed)); /* Port 2 config */
i82527_msg_t msg11 __attribute__ ((packed)); /* Message 11 */
uint8_t p1in __attribute__ ((packed)); /* Port 1 in */
i82527_msg_t msg12 __attribute__ ((packed)); /* Message 12 */
uint8_t p2in __attribute__ ((packed)); /* Port 2 in */
i82527_msg_t msg13 __attribute__ ((packed)); /* Message 13 */
uint8_t p1out __attribute__ ((packed)); /* Port 1 out */
i82527_msg_t msg14 __attribute__ ((packed)); /* Message 14 */
uint8_t p2out __attribute__ ((packed)); /* Port 2 out */
i82527_msg_t msg15 __attribute__ ((packed)); /* Message 15 */
uint8_t sra __attribute__ ((packed)); /* Serial reset address */
} i82527_t;
#define I82527_CTRL_CCE (1<<6)
#define I82527_CTRL_EIE (1<<3)
#define I82527_CTRL_SIE (1<<2)
#define I82527_CTRL_IE (1<<1)
#define I82527_CTRL_INIT (1)
#define I82527_STATUS_BOFF (1<<7)
#define I82527_STATUS_WARN (1<<6)
#define I82527_STATUS_WAKE (1<<5)
#define I82527_STATUS_RXOK (1<<4)
#define I82527_STATUS_TXOK (1<<3)
#define I82527_STATUS_LEC (7)
#define I82527_STATUS_LEC_NONE 0
#define I82527_STATUS_LEC_STUFF 1
#define I82527_STATUS_LEC_FORM 2
#define I82527_STATUS_LEC_ACK 3
#define I82527_STATUS_LEC_BIT1 4
#define I82527_STATUS_LEC_BIT0 5
#define I82527_STATUS_LEC_CRC 6
#define I82527_CIR_RSTSTAT (1<<7)
#define I82527_CIR_DSC (1<<6)
#define I82527_CIR_DMC (1<<5)
#define I82527_CIR_PWD (1<<4)
#define I82527_CIR_SLEEP (1<<3)
#define I82527_CIR_MUX (1<<2)
#define I82527_CIR_CEN (1)
#define I82527_CLKOUT_SL1 (1<<5)
#define I82527_CLKOUT_SLO (1<<4)
#define I82527_BCR_COBY (1<<6)
#define I82527_BCR_POL (1<<5)
#define I82527_DCT1 (1<<3)
#define I82527_DCR1 (1<<1)
#define I82527_DCR0 (1)
#define I82527_BTR1_SPL (1<<7)
#define I82527_MSG_CTRL_MSGVAL (2<<6)
#define I82527_MSG_CTRL_MSGVAL_NC (3<<6)
#define I82527_MSG_CTRL_MSGVAL_SET (2<<6)
#define I82527_MSG_CTRL_MSGVAL_CLR (1<<6)
#define I82527_MSG_CTRL_TXIE (2<<4)
#define I82527_MSG_CTRL_TXIE_NC (3<<4)
#define I82527_MSG_CTRL_TXIE_SET (2<<4)
#define I82527_MSG_CTRL_TXIE_CLR (1<<4)
#define I82527_MSG_CTRL_RXIE (2<<2)
#define I82527_MSG_CTRL_RXIE_NC (3<<2)
#define I82527_MSG_CTRL_RXIE_SET (2<<2)
#define I82527_MSG_CTRL_RXIE_CLR (1<<2)
#define I82527_MSG_CTRL_INTPND (2)
#define I82527_MSG_CTRL_INTPND_NC (3)
#define I82527_MSG_CTRL_INTPND_SET (2)
#define I82527_MSG_CTRL_INTPND_CLR (1)
#define I82527_MSG_CTRL_RMTPND (2<<6)
#define I82527_MSG_CTRL_RMTPND_NC (3<<6)
#define I82527_MSG_CTRL_RMTPND_SET (2<<6)
#define I82527_MSG_CTRL_RMTPND_CLR (1<<6)
#define I82527_MSG_CTRL_TXRQ (2<<4)
#define I82527_MSG_CTRL_TXRQ_NC (3<<4)
#define I82527_MSG_CTRL_TXRQ_SET (2<<4)
#define I82527_MSG_CTRL_TXRQ_CLR (1<<4)
#define I82527_MSG_CTRL_MSGLST (2<<2)
#define I82527_MSG_CTRL_MSGLST_NC (3<<2)
#define I82527_MSG_CTRL_MSGLST_SET (2<<2)
#define I82527_MSG_CTRL_MSGLST_CLR (1<<2)
#define I82527_MSG_CTRL_CPUUPD (2<<2)
#define I82527_MSG_CTRL_CPUUPD_NC (3<<2)
#define I82527_MSG_CTRL_CPUUPD_SET (2<<2)
#define I82527_MSG_CTRL_CPUUPD_CLR (1<<2)
#define I82527_MSG_CTRL_NEWDAT (2)
#define I82527_MSG_CTRL_NEWDAT_NC (3)
#define I82527_MSG_CTRL_NEWDAT_SET (2)
#define I82527_MSG_CTRL_NEWDAT_CLR (1)
#define I82527_MSG_CFG_DIR (1<<3)
#define I82527_MSG_CFG_XTD (1<<2)
extern i82527_t canbus0;
extern i82527_t canbus1;
extern i82527_t canbus2;
rtems_device_driver canbus_initialize(rtems_device_major_number,
rtems_device_minor_number,
void *);
rtems_device_driver canbus_open(rtems_device_major_number,
rtems_device_minor_number,
void *);
rtems_device_driver canbus_close(rtems_device_major_number,
rtems_device_minor_number,
void *);
rtems_device_driver canbus_read(rtems_device_major_number,
rtems_device_minor_number,
void *);
rtems_device_driver canbus_write(rtems_device_major_number,
rtems_device_minor_number,
void *);
rtems_device_driver canbus_control(rtems_device_major_number,
rtems_device_minor_number,
void *);
#define CANBUS_DRIVER_TABLE_ENTRY \
{ canbus_initialize, canbus_open, canbus_close, \
canbus_read, canbus_write, canbus_control }
#endif /* __CANBUS_H_ */
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