[267c7c5] | 1 | /*===============================================================*\ |
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| 2 | | Project: RTEMS support for MPC83xx | |
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| 3 | +-----------------------------------------------------------------+ |
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| 4 | | Copyright (c) 2007 | |
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[e560ee85] | 5 | | embedded brains GmbH | |
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[267c7c5] | 6 | | Obere Lagerstr. 30 | |
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[e560ee85] | 7 | | 82178 Puchheim | |
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[267c7c5] | 8 | | Germany | |
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| 9 | | rtems@embedded-brains.de | |
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| 10 | +-----------------------------------------------------------------+ |
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| 11 | | The license and distribution terms for this file may be | |
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| 12 | | found in the file LICENSE in this distribution or at | |
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| 13 | | | |
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[c499856] | 14 | | http://www.rtems.org/license/LICENSE. | |
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[267c7c5] | 15 | | | |
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| 16 | +-----------------------------------------------------------------+ |
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| 17 | | this file contains the MPC83xx I2C driver declarations | |
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| 18 | \*===============================================================*/ |
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| 19 | #ifndef _MPC83XX_I2CDRV_H |
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| 20 | #define _MPC83XX_I2CDRV_H |
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| 21 | |
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| 22 | #include <rtems/libi2c.h> |
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| 23 | #include <rtems/irq.h> |
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| 24 | |
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[fe5d5048] | 25 | #include <bsp.h> |
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| 26 | |
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[e5a79e54] | 27 | #ifdef LIBBSP_POWERPC_GEN83XX_BSP_H |
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[fe5d5048] | 28 | #include <mpc83xx/mpc83xx.h> |
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| 29 | #endif |
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| 30 | |
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[267c7c5] | 31 | #ifdef __cplusplus |
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| 32 | extern "C" { |
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| 33 | #endif |
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| 34 | |
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[fe5d5048] | 35 | #ifdef LIBBSP_POWERPC_MPC55XXEVB_BSP_H |
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| 36 | typedef struct { |
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| 37 | volatile uint8_t i2cadr; |
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| 38 | volatile uint8_t i2cfdr; |
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| 39 | volatile uint8_t i2ccr; |
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| 40 | volatile uint8_t i2csr; |
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| 41 | volatile uint8_t i2cdr; |
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| 42 | volatile uint8_t i2cdfsrr; |
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| 43 | } m83xxI2CRegisters_t; |
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| 44 | #endif |
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| 45 | |
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[267c7c5] | 46 | typedef struct mpc83xx_i2c_softc { |
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[42bf1b9] | 47 | m83xxI2CRegisters_t *reg_ptr; /* ptr to HW registers */ |
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| 48 | int initialized; /* TRUE: module is initialized */ |
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| 49 | rtems_irq_number irq_number; /* IRQ number used for this module */ |
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| 50 | uint32_t base_frq; /* input frq for baud rate divider */ |
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| 51 | rtems_id irq_sema_id; /* SEMA used for IRQ signalling */ |
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[aeff597] | 52 | void (*probe)(struct mpc83xx_i2c_softc *self); |
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[267c7c5] | 53 | } mpc83xx_i2c_softc_t ; |
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| 54 | |
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| 55 | typedef struct { |
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[359e537] | 56 | rtems_libi2c_bus_t bus_desc; |
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[267c7c5] | 57 | struct mpc83xx_i2c_softc softc; |
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| 58 | } mpc83xx_i2c_desc_t; |
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| 59 | |
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| 60 | |
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| 61 | extern rtems_libi2c_bus_ops_t mpc83xx_i2c_ops; |
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| 62 | |
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| 63 | #ifdef __cplusplus |
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| 64 | } |
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| 65 | #endif |
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| 66 | |
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| 67 | |
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| 68 | #endif /* _MPC83XX_I2CDRV_H */ |
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