diff options
Diffstat (limited to 'bsps/powerpc/include/mpc83xx/mpc83xx_i2cdrv.h')
| -rw-r--r-- | bsps/powerpc/include/mpc83xx/mpc83xx_i2cdrv.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/bsps/powerpc/include/mpc83xx/mpc83xx_i2cdrv.h b/bsps/powerpc/include/mpc83xx/mpc83xx_i2cdrv.h new file mode 100644 index 0000000000..206cb87cb4 --- /dev/null +++ b/bsps/powerpc/include/mpc83xx/mpc83xx_i2cdrv.h @@ -0,0 +1,68 @@ +/*===============================================================*\ +| 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 LIBBSP_POWERPC_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 */ |