4.115
Last change
on this file since 0e27119 was
0e27119,
checked in by Joel Sherrill <joel.sherrill@…>, on 10/11/12 at 20:52:18
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Use proper 3 line form of license text
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-
Property mode set to
100644
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File size:
1.3 KB
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Rev | Line | |
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[d3c32136] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup mpc55xx |
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| 5 | * |
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| 6 | * @brief Header file for the watchdog timer. |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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| 10 | * Copyright (c) 2008 |
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| 11 | * Embedded Brains GmbH |
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| 12 | * Obere Lagerstr. 30 |
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| 13 | * D-82178 Puchheim |
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| 14 | * Germany |
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| 15 | * rtems@embedded-brains.de |
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| 16 | * |
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[0e27119] | 17 | * The license and distribution terms for this file may be |
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| 18 | * found in the file LICENSE in this distribution or at |
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| 19 | * http://www.rtems.com/license/LICENSE. |
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[d3c32136] | 20 | */ |
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| 21 | |
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| 22 | #ifndef LIBCPU_POWERPC_MPC55XX_WATCHDOG_H |
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| 23 | #define LIBCPU_POWERPC_MPC55XX_WATCHDOG_H |
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| 24 | |
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| 25 | #include <stdbool.h> |
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| 26 | |
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| 27 | #include <rtems.h> |
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| 28 | |
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| 29 | #include <libcpu/powerpc-utility.h> |
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| 30 | |
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[c1188b41] | 31 | #ifdef __cplusplus |
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| 32 | extern "C" { |
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| 33 | #endif /* __cplusplus */ |
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| 34 | |
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[d3c32136] | 35 | static inline void mpc55xx_watchdog_clear() |
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| 36 | { |
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| 37 | PPC_SET_SPECIAL_PURPOSE_REGISTER( BOOKE_TSR, BOOKE_TSR_WIS); |
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| 38 | } |
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| 39 | |
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| 40 | static inline void mpc55xx_watchdog_enable_interrupt( bool enable) |
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| 41 | { |
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| 42 | if (enable) { |
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| 43 | PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE); |
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| 44 | } else { |
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| 45 | PPC_CLEAR_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE); |
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| 46 | } |
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| 47 | } |
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| 48 | |
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| 49 | static inline rtems_status_code mpc55xx_watchdog_set_time_base_bit( uint32_t bit) |
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| 50 | { |
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| 51 | if (bit > 63) { |
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| 52 | return RTEMS_INVALID_NUMBER; |
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| 53 | } |
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| 54 | |
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| 55 | PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS_MASKED( |
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| 56 | BOOKE_TCR, |
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| 57 | BOOKE_TCR_WP( bit) | BOOKE_TCR_WPEXT( bit >> 2), |
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| 58 | BOOKE_TCR_WP_MASK | BOOKE_TCR_WPEXT_MASK |
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| 59 | ); |
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| 60 | |
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| 61 | return RTEMS_SUCCESSFUL; |
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| 62 | } |
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| 63 | |
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[c1188b41] | 64 | #ifdef __cplusplus |
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| 65 | } |
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| 66 | #endif /* __cplusplus */ |
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| 67 | |
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[d3c32136] | 68 | #endif /* LIBCPU_POWERPC_MPC55XX_WATCHDOG_H */ |
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