Mercurial > ecos
annotate packages/hal/common/current/include/drv_api.h @ 210:d2c90368aeef
Merge from eCos master repository on 2002-05-23-21:39:14-BST
| author | jlarmour |
|---|---|
| date | Thu, 23 May 2002 22:59:51 +0000 |
| parents | e0c0827131d1 |
| children | 74dbf4c3f2e1 |
| rev | line source |
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| 2 | 1 #ifndef CYGONCE_HAL_DRV_API_H |
| 2 #define CYGONCE_HAL_DRV_API_H | |
| 3 | |
| 4 /*========================================================================== | |
| 5 // | |
| 6 // drv_api.h | |
| 7 // | |
| 8 // Native API for Kernel | |
| 9 // | |
| 10 //========================================================================== | |
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11 //####ECOSGPLCOPYRIGHTBEGIN#### |
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12 // ------------------------------------------- |
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13 // This file is part of eCos, the Embedded Configurable Operating System. |
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
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15 // |
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16 // eCos is free software; you can redistribute it and/or modify it under |
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17 // the terms of the GNU General Public License as published by the Free |
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18 // Software Foundation; either version 2 or (at your option) any later version. |
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19 // |
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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23 // for more details. |
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24 // |
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25 // You should have received a copy of the GNU General Public License along |
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26 // with eCos; if not, write to the Free Software Foundation, Inc., |
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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28 // |
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29 // As a special exception, if other files instantiate templates or use macros |
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30 // or inline functions from this file, or you compile this file and link it |
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31 // with other works to produce a work based on this file, this file does not |
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32 // by itself cause the resulting work to be covered by the GNU General Public |
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33 // License. However the source code for this file must still be made available |
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34 // in accordance with section (3) of the GNU General Public License. |
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35 // |
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36 // This exception does not invalidate any other reasons why a work based on |
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37 // this file might be covered by the GNU General Public License. |
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38 // |
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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40 // at http://sources.redhat.com/ecos/ecos-license/ |
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41 // ------------------------------------------- |
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42 //####ECOSGPLCOPYRIGHTEND#### |
| 2 | 43 //========================================================================== |
| 44 //#####DESCRIPTIONBEGIN#### | |
| 45 // | |
| 46 // Author(s): nickg | |
| 47 // Date: 1999-02-24 | |
| 48 // Purpose: Driver API | |
| 49 // Description: This file defines the API used by device drivers to access | |
| 50 // system services. When the kernel is present it maps directly | |
| 51 // to the Kernel C API. When the kernel is absent, it is provided | |
| 52 // by a set of HAL functions. | |
| 53 // | |
| 54 // Usage: #include <cyg/kernel/kapi.h> | |
| 55 // | |
| 56 //####DESCRIPTIONEND#### | |
| 57 // | |
| 58 //========================================================================*/ | |
| 59 | |
| 60 #include <pkgconf/hal.h> | |
| 61 #include <cyg/infra/cyg_type.h> | |
| 62 | |
| 63 #ifdef CYGPKG_KERNEL | |
| 64 | |
| 65 /*------------------------------------------------------------------------*/ | |
| 66 /* Kernel co-resident version of API */ | |
| 67 | |
| 68 #include <pkgconf/kernel.h> | |
| 69 | |
| 70 #ifndef CYGFUN_KERNEL_API_C | |
| 71 #error Driver API requres Kernel API to be present | |
| 72 #endif | |
| 73 | |
| 74 #include <cyg/kernel/kapi.h> | |
| 75 | |
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76 #define cyg_drv_isr_lock cyg_interrupt_disable |
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77 #define cyg_drv_isr_unlock cyg_interrupt_enable |
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78 |
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79 #define cyg_drv_dsr_lock cyg_scheduler_lock |
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80 #define cyg_drv_dsr_unlock cyg_scheduler_unlock |
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81 |
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82 #define cyg_drv_mutex_t cyg_mutex_t |
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83 #define cyg_drv_mutex_init cyg_mutex_init |
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84 #define cyg_drv_mutex_destroy cyg_mutex_destroy |
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85 #define cyg_drv_mutex_lock cyg_mutex_lock |
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86 #define cyg_drv_mutex_trylock cyg_mutex_trylock |
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87 #define cyg_drv_mutex_unlock cyg_mutex_unlock |
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88 #define cyg_drv_mutex_release cyg_mutex_release |
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89 |
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90 #define cyg_drv_cond_t cyg_cond_t |
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91 #define cyg_drv_cond_init cyg_cond_init |
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92 #define cyg_drv_cond_destroy cyg_cond_destroy |
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93 #define cyg_drv_cond_wait cyg_cond_wait |
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94 #define cyg_drv_cond_signal cyg_cond_signal |
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95 #define cyg_drv_cond_broadcast cyg_cond_broadcast |
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96 |
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97 #define cyg_drv_interrupt_create cyg_interrupt_create |
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98 #define cyg_drv_interrupt_delete cyg_interrupt_delete |
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99 #define cyg_drv_interrupt_attach cyg_interrupt_attach |
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100 #define cyg_drv_interrupt_detach cyg_interrupt_detach |
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101 #define cyg_drv_interrupt_mask cyg_interrupt_mask |
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102 #define cyg_drv_interrupt_unmask cyg_interrupt_unmask |
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103 #define cyg_drv_interrupt_mask_intunsafe cyg_interrupt_mask_intunsafe |
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104 #define cyg_drv_interrupt_unmask_intunsafe cyg_interrupt_unmask_intunsafe |
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105 #define cyg_drv_interrupt_acknowledge cyg_interrupt_acknowledge |
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106 #define cyg_drv_interrupt_configure cyg_interrupt_configure |
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107 #define cyg_drv_interrupt_level cyg_interrupt_level |
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108 #define cyg_drv_interrupt_set_cpu cyg_interrupt_set_cpu |
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109 #define cyg_drv_interrupt_get_cpu cyg_interrupt_get_cpu |
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110 |
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111 #define cyg_drv_spinlock_t cyg_spinlock_t |
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112 #define cyg_drv_spinlock_init cyg_spinlock_init |
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113 #define cyg_drv_spinlock_spin cyg_spinlock_spin |
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114 #define cyg_drv_spinlock_clear cyg_spinlock_clear |
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115 #define cyg_drv_spinlock_try cyg_spinlock_try |
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116 #define cyg_drv_spinlock_test cyg_spinlock_test |
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117 #define cyg_drv_spinlock_spin_intsave cyg_spinlock_spin_intsave |
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118 #define cyg_drv_spinlock_clear_intsave cyg_spinlock_clear_intsave |
| 2 | 119 |
| 120 #else /* CYGPKG_KERNEL */ | |
| 121 | |
| 122 /*------------------------------------------------------------------------*/ | |
| 123 /* Non-kernel version of API */ | |
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124 |
| 2 | 125 typedef CYG_ADDRWORD cyg_addrword_t; /* May hold pointer or word */ |
| 126 typedef cyg_addrword_t cyg_handle_t; /* Object handle */ | |
| 127 typedef cyg_uint32 cyg_priority_t; /* type for priorities */ | |
| 128 typedef cyg_uint32 cyg_vector_t; /* Interrupt vector id */ | |
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129 typedef cyg_uint32 cyg_cpu_t; /* CPU id */ |
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130 typedef int cyg_bool_t; |
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131 typedef cyg_int32 cyg_code_t; /* type for various codes */ |
| 2 | 132 |
| 133 typedef cyg_uint32 cyg_ISR_t( cyg_vector_t vector, cyg_addrword_t data); | |
| 134 typedef void cyg_DSR_t(cyg_vector_t vector, | |
| 135 cyg_ucount32 count, | |
| 136 cyg_addrword_t data); | |
| 137 | |
| 138 | |
| 139 externC void cyg_drv_isr_lock(void); | |
| 140 externC void cyg_drv_isr_unlock(void); | |
| 141 | |
| 142 externC void cyg_drv_dsr_lock(void); | |
| 143 externC void cyg_drv_dsr_unlock(void); | |
| 144 | |
| 145 typedef struct | |
| 146 { | |
| 147 cyg_atomic lock; | |
| 148 } cyg_drv_mutex_t; | |
| 149 | |
| 150 externC void cyg_drv_mutex_init( cyg_drv_mutex_t *mutex ); | |
| 151 externC void cyg_drv_mutex_destroy( cyg_drv_mutex_t *mutex ); | |
| 152 externC cyg_bool_t cyg_drv_mutex_lock( cyg_drv_mutex_t *mutex ); | |
| 153 externC cyg_bool_t cyg_drv_mutex_trylock( cyg_drv_mutex_t *mutex ); | |
| 154 externC void cyg_drv_mutex_unlock( cyg_drv_mutex_t *mutex ); | |
| 155 externC void cyg_drv_mutex_release( cyg_drv_mutex_t *mutex ); | |
| 156 | |
| 157 typedef struct | |
| 158 { | |
| 159 cyg_atomic wait; | |
| 160 cyg_drv_mutex_t *mutex; | |
| 161 } cyg_drv_cond_t; | |
| 162 | |
| 163 externC void cyg_drv_cond_init( cyg_drv_cond_t *cond, cyg_drv_mutex_t *mutex ); | |
| 164 externC void cyg_drv_cond_destroy( cyg_drv_cond_t *cond ); | |
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165 externC cyg_bool_t cyg_drv_cond_wait( cyg_drv_cond_t *cond ); |
| 2 | 166 externC void cyg_drv_cond_signal( cyg_drv_cond_t *cond ); |
| 167 externC void cyg_drv_cond_broadcast( cyg_drv_cond_t *cond ); | |
| 168 | |
| 169 typedef struct cyg_interrupt | |
| 170 { | |
| 171 cyg_vector_t vector; | |
| 172 cyg_priority_t priority; | |
| 173 cyg_ISR_t *isr; | |
| 174 cyg_DSR_t *dsr; | |
| 175 CYG_ADDRWORD data; | |
| 176 | |
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177 struct cyg_interrupt* volatile next_dsr; |
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178 volatile cyg_int32 dsr_count; |
| 2 | 179 |
| 180 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN | |
| 181 struct cyg_interrupt *next; | |
| 182 #endif | |
| 183 | |
| 184 } cyg_interrupt; | |
| 185 | |
| 186 externC void cyg_drv_interrupt_create( | |
| 187 cyg_vector_t vector, | |
| 188 cyg_priority_t priority, | |
| 189 cyg_addrword_t data, | |
| 190 cyg_ISR_t *isr, | |
| 191 cyg_DSR_t *dsr, | |
| 192 cyg_handle_t *handle, | |
| 193 cyg_interrupt *intr | |
| 194 ); | |
| 195 externC void cyg_drv_interrupt_delete( cyg_handle_t interrupt ); | |
| 196 externC void cyg_drv_interrupt_attach( cyg_handle_t interrupt ); | |
| 197 externC void cyg_drv_interrupt_detach( cyg_handle_t interrupt ); | |
| 198 | |
| 199 externC void cyg_drv_interrupt_mask( cyg_vector_t vector ); | |
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200 externC void cyg_drv_interrupt_mask_intunsafe( cyg_vector_t vector ); |
| 2 | 201 externC void cyg_drv_interrupt_unmask( cyg_vector_t vector ); |
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208
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202 externC void cyg_drv_interrupt_unmask_intunsafe( cyg_vector_t vector ); |
| 2 | 203 externC void cyg_drv_interrupt_acknowledge( cyg_vector_t vector ); |
| 204 externC void cyg_drv_interrupt_configure( | |
| 205 cyg_vector_t vector, | |
| 206 cyg_bool_t level, | |
| 207 cyg_bool_t up | |
| 208 ); | |
| 209 externC void cyg_drv_interrupt_level( cyg_vector_t vector, cyg_priority_t level ); | |
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177
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210 externC void cyg_drv_interrupt_set_cpu( cyg_vector_t vector, cyg_cpu_t cpu ); |
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211 externC cyg_cpu_t cyg_drv_interrupt_get_cpu( cyg_vector_t vector ); |
| 2 | 212 |
| 213 | |
| 214 enum cyg_ISR_results | |
| 215 { | |
| 216 CYG_ISR_HANDLED = 1, /* Interrupt was handled */ | |
| 217 CYG_ISR_CALL_DSR = 2 /* Schedule DSR */ | |
| 218 }; | |
| 219 | |
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220 |
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221 typedef struct |
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222 { |
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223 cyg_atomic lock; |
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224 } cyg_drv_spinlock_t; |
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225 |
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226 void cyg_drv_spinlock_init( |
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227 cyg_drv_spinlock_t *lock, /* spinlock to initialize */ |
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228 cyg_bool_t locked /* init locked or unlocked */ |
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229 ); |
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230 |
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231 void cyg_drv_spinlock_destroy( cyg_drv_spinlock_t *lock ); |
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232 |
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233 void cyg_drv_spinlock_spin( cyg_drv_spinlock_t *lock ); |
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234 |
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235 void cyg_drv_spinlock_clear( cyg_drv_spinlock_t *lock ); |
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236 |
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237 cyg_bool_t cyg_drv_spinlock_try( cyg_drv_spinlock_t *lock ); |
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238 |
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239 cyg_bool_t cyg_drv_spinlock_test( cyg_drv_spinlock_t *lock ); |
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240 |
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241 void cyg_drv_spinlock_spin_intsave( cyg_drv_spinlock_t *lock, |
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242 cyg_addrword_t *istate ); |
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243 |
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244 void cyg_drv_spinlock_clear_intsave( cyg_drv_spinlock_t *lock, |
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245 cyg_addrword_t istate ); |
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246 |
| 2 | 247 #endif /* CYGPKG_KERNEL */ |
| 248 | |
| 249 /*------------------------------------------------------------------------*/ | |
| 250 /* EOF drv_api.h */ | |
| 251 #endif // CYGONCE_HAL_DRV_API_H |
