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|
/*===============================================================*\
| Project: RTEMS support for MPC83xx |
+-----------------------------------------------------------------+
| Copyright (c) 2007 |
| Embedded Brains GmbH |
| Obere Lagerstr. 30 |
| D-82178 Puchheim |
| Germany |
| rtems@embedded-brains.de |
+-----------------------------------------------------------------+
| The license and distribution terms for this file may be |
| found in the file LICENSE in this distribution or at |
| |
| http://www.rtems.org/license/LICENSE. |
| |
+-----------------------------------------------------------------+
| this file contains the MPC83xx I2C driver declarations |
\*===============================================================*/
#ifndef _MPC83XX_I2CDRV_H
#define _MPC83XX_I2CDRV_H
#include <rtems/libi2c.h>
#include <rtems/irq.h>
#include <bsp.h>
#ifdef __GEN83xx_BSP_h
#include <mpc83xx/mpc83xx.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef LIBBSP_POWERPC_MPC55XXEVB_BSP_H
typedef struct {
volatile uint8_t i2cadr;
volatile uint8_t i2cfdr;
volatile uint8_t i2ccr;
volatile uint8_t i2csr;
volatile uint8_t i2cdr;
volatile uint8_t i2cdfsrr;
} m83xxI2CRegisters_t;
#endif
typedef struct mpc83xx_i2c_softc {
m83xxI2CRegisters_t *reg_ptr; /* ptr to HW registers */
int initialized; /* TRUE: module is initialized */
rtems_irq_number irq_number; /* IRQ number used for this module */
uint32_t base_frq; /* input frq for baud rate divider */
rtems_id irq_sema_id; /* SEMA used for IRQ signalling */
void (*probe)(struct mpc83xx_i2c_softc *self);
} mpc83xx_i2c_softc_t ;
typedef struct {
rtems_libi2c_bus_t bus_desc;
struct mpc83xx_i2c_softc softc;
} mpc83xx_i2c_desc_t;
extern rtems_libi2c_bus_ops_t mpc83xx_i2c_ops;
#ifdef __cplusplus
}
#endif
#endif /* _MPC83XX_I2CDRV_H */
|
