[6d3ff66f] | 1 | /*$Id$*/ |
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| 2 | |
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[8388ea76] | 3 | /* Implementation of the VME.h and VMEDMA.h APIs for the BSP using the |
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| 4 | * vmeUniverse/vmeTsi148 drivers |
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| 5 | * |
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| 6 | * This file is named vme_universe.c for historic reasons. |
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| 7 | */ |
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| 8 | |
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| 9 | |
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[6d3ff66f] | 10 | #include <rtems.h> |
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| 11 | #include <bsp.h> |
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| 12 | #include <bsp/VME.h> |
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[8388ea76] | 13 | #include <bsp/VMEDMA.h> |
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[6d3ff66f] | 14 | #include <bsp/VMEConfig.h> |
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| 15 | #include <bsp/irq.h> |
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[b83b70ae] | 16 | #include <stdio.h> |
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| 17 | |
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[54fdd8b0] | 18 | #define __INSIDE_RTEMS_BSP__ |
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| 19 | |
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[b83b70ae] | 20 | #if !defined(_VME_DRIVER_TSI148) && !defined(_VME_DRIVER_UNIVERSE) |
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| 21 | #define _VME_DRIVER_UNIVERSE |
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| 22 | #endif |
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| 23 | |
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| 24 | #if defined(_VME_DRIVER_TSI148) |
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| 25 | #define _VME_TSI148_DECLARE_SHOW_ROUTINES |
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| 26 | #include <bsp/vmeTsi148.h> |
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[8388ea76] | 27 | #include <bsp/vmeTsi148DMA.h> |
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[b83b70ae] | 28 | #endif |
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| 29 | |
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| 30 | #if defined(_VME_DRIVER_UNIVERSE) |
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| 31 | #define _VME_UNIVERSE_DECLARE_SHOW_ROUTINES |
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[6d3ff66f] | 32 | #include <bsp/vmeUniverse.h> |
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[8388ea76] | 33 | #include <bsp/vmeUniverseDMA.h> |
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[b83b70ae] | 34 | #if !defined(BSP_VME_INSTALL_IRQ_MGR) && defined(BSP_VME_UNIVERSE_INSTALL_IRQ_MGR) |
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| 35 | #define BSP_VME_INSTALL_IRQ_MGR BSP_VME_UNIVERSE_INSTALL_IRQ_MGR |
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| 36 | #endif |
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| 37 | #endif |
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[6d3ff66f] | 38 | |
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[8388ea76] | 39 | #include <bsp/bspVmeDmaList.h> |
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| 40 | |
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[6d3ff66f] | 41 | /* Wrap BSP VME calls around driver calls - we do this so EPICS doesn't have to |
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| 42 | * include bridge-specific headers. This file provides the necessary glue |
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| 43 | * to make VME.h and vmeconfig.c independent of the bridge chip. |
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[b83b70ae] | 44 | * |
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| 45 | * This file is named 'vme_universe.c' for historical reasons. |
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[6d3ff66f] | 46 | */ |
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| 47 | |
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[f774fc06] | 48 | /* |
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| 49 | * Authorship |
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| 50 | * ---------- |
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| 51 | * This software was created by |
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| 52 | * Till Straumann <strauman@slac.stanford.edu>, 9/2005, |
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| 53 | * Stanford Linear Accelerator Center, Stanford University. |
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| 54 | * |
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| 55 | * Acknowledgement of sponsorship |
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| 56 | * ------------------------------ |
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| 57 | * This software was produced by |
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| 58 | * the Stanford Linear Accelerator Center, Stanford University, |
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| 59 | * under Contract DE-AC03-76SFO0515 with the Department of Energy. |
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| 60 | * |
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| 61 | * Government disclaimer of liability |
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| 62 | * ---------------------------------- |
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| 63 | * Neither the United States nor the United States Department of Energy, |
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| 64 | * nor any of their employees, makes any warranty, express or implied, or |
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| 65 | * assumes any legal liability or responsibility for the accuracy, |
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| 66 | * completeness, or usefulness of any data, apparatus, product, or process |
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| 67 | * disclosed, or represents that its use would not infringe privately owned |
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| 68 | * rights. |
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| 69 | * |
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| 70 | * Stanford disclaimer of liability |
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| 71 | * -------------------------------- |
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| 72 | * Stanford University makes no representations or warranties, express or |
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| 73 | * implied, nor assumes any liability for the use of this software. |
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| 74 | * |
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| 75 | * Stanford disclaimer of copyright |
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| 76 | * -------------------------------- |
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| 77 | * Stanford University, owner of the copyright, hereby disclaims its |
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| 78 | * copyright and all other rights in this software. Hence, anyone may |
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| 79 | * freely use it for any purpose without restriction. |
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| 80 | * |
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| 81 | * Maintenance of notices |
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| 82 | * ---------------------- |
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| 83 | * In the interest of clarity regarding the origin and status of this |
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| 84 | * SLAC software, this and all the preceding Stanford University notices |
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| 85 | * are to remain affixed to any copy or derivative of this software made |
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| 86 | * or distributed by the recipient and are to be affixed to any copy of |
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| 87 | * software made or distributed by the recipient that contains a copy or |
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| 88 | * derivative of this software. |
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| 89 | * |
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| 90 | * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 |
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| 91 | */ |
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[b83b70ae] | 92 | typedef struct { |
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| 93 | int (*xlate_adrs)(int, int, unsigned long, unsigned long, unsigned long *); |
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| 94 | int (*install_isr)(unsigned long, BSP_VME_ISR_t, void *); |
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| 95 | int (*remove_isr)(unsigned long, BSP_VME_ISR_t, void *); |
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| 96 | BSP_VME_ISR_t (*get_isr)(unsigned long vector, void **); |
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| 97 | int (*enable_int_lvl)(unsigned int); |
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| 98 | int (*disable_int_lvl)(unsigned int); |
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| 99 | int (*outbound_p_cfg)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); |
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| 100 | int (*inbound_p_cfg) (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); |
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| 101 | void (*outbound_p_show)(FILE*); |
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| 102 | void (*inbound_p_show) (FILE*); |
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| 103 | int (*install_irq_mgr)(int, int, int, ...); |
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| 104 | int irq_mgr_flags; |
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| 105 | } VMEOpsRec, *VMEOps; |
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| 106 | |
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[8388ea76] | 107 | /* two separate 'ops' structs for historic reasons */ |
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| 108 | typedef struct DmaOpsRec_ { |
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| 109 | int (*setup)(int, uint32_t, uint32_t, void *); |
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| 110 | int (*start)(int, uint32_t, uint32_t, uint32_t); |
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| 111 | uint32_t (*status)(int); |
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| 112 | VMEDmaListClass listClass; |
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| 113 | int nChannels; |
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| 114 | int *vectors; |
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| 115 | } DmaOpsRec, *DmaOps; |
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| 116 | |
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[b83b70ae] | 117 | #ifdef _VME_DRIVER_UNIVERSE |
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| 118 | static VMEOpsRec uniOpsRec = { |
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| 119 | xlate_adrs: vmeUniverseXlateAddr, |
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| 120 | install_isr: vmeUniverseInstallISR, |
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| 121 | remove_isr: vmeUniverseRemoveISR, |
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| 122 | get_isr: vmeUniverseISRGet, |
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| 123 | enable_int_lvl: vmeUniverseIntEnable, |
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| 124 | disable_int_lvl: vmeUniverseIntDisable, |
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| 125 | outbound_p_cfg: vmeUniverseMasterPortCfg, |
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| 126 | inbound_p_cfg: vmeUniverseSlavePortCfg, |
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| 127 | outbound_p_show: vmeUniverseMasterPortsShow, |
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| 128 | inbound_p_show: vmeUniverseSlavePortsShow, |
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| 129 | install_irq_mgr: vmeUniverseInstallIrqMgrAlt, |
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| 130 | irq_mgr_flags: VMEUNIVERSE_IRQ_MGR_FLAG_SHARED | |
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| 131 | VMEUNIVERSE_IRQ_MGR_FLAG_PW_WORKAROUND, |
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| 132 | }; |
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[8388ea76] | 133 | |
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| 134 | static int uniVecs[] = { UNIV_DMA_INT_VEC }; |
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| 135 | |
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[863b0cef] | 136 | static DmaOpsRec uniDmaOpsRec = { |
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[8388ea76] | 137 | setup: vmeUniverseDmaSetup, |
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| 138 | start: vmeUniverseDmaStart, |
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| 139 | status: vmeUniverseDmaStatus, |
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| 140 | listClass: &vmeUniverseDmaListClass, |
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| 141 | nChannels: 1, |
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| 142 | vectors: uniVecs, |
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| 143 | }; |
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[b83b70ae] | 144 | #endif |
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| 145 | |
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| 146 | #ifdef _VME_DRIVER_TSI148 |
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| 147 | static VMEOpsRec tsiOpsRec = { |
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| 148 | xlate_adrs: vmeTsi148XlateAddr, |
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| 149 | install_isr: vmeTsi148InstallISR, |
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| 150 | remove_isr: vmeTsi148RemoveISR, |
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| 151 | get_isr: vmeTsi148ISRGet, |
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| 152 | enable_int_lvl: vmeTsi148IntEnable, |
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| 153 | disable_int_lvl: vmeTsi148IntDisable, |
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| 154 | outbound_p_cfg: vmeTsi148OutboundPortCfg, |
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| 155 | inbound_p_cfg: vmeTsi148InboundPortCfg, |
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| 156 | outbound_p_show: vmeTsi148OutboundPortsShow, |
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| 157 | inbound_p_show: vmeTsi148InboundPortsShow, |
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| 158 | install_irq_mgr: vmeTsi148InstallIrqMgrAlt, |
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| 159 | irq_mgr_flags: VMETSI148_IRQ_MGR_FLAG_SHARED, |
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| 160 | }; |
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[8388ea76] | 161 | |
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| 162 | static int tsiVecs[] = { |
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| 163 | TSI_DMA_INT_VEC, |
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| 164 | TSI_DMA1_INT_VEC, |
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| 165 | }; |
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| 166 | |
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[863b0cef] | 167 | static DmaOpsRec tsiDmaOpsRec = { |
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[8388ea76] | 168 | setup: vmeTsi148DmaSetup, |
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| 169 | start: vmeTsi148DmaStart, |
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| 170 | status: vmeTsi148DmaStatus, |
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| 171 | listClass: &vmeTsi148DmaListClass, |
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| 172 | nChannels: 2, |
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| 173 | vectors: tsiVecs, |
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| 174 | }; |
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[b83b70ae] | 175 | #endif |
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| 176 | |
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[8388ea76] | 177 | static VMEOps theOps = 0; |
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| 178 | static DmaOps theDmaOps = 0; |
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[6d3ff66f] | 179 | |
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| 180 | int |
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| 181 | BSP_vme2local_adrs(unsigned long am, unsigned long vmeaddr, unsigned long *plocaladdr) |
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| 182 | { |
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[b83b70ae] | 183 | int rval=theOps->xlate_adrs(1,0,am,vmeaddr,plocaladdr); |
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[6d3ff66f] | 184 | *plocaladdr+=PCI_MEM_BASE; |
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| 185 | return rval; |
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| 186 | } |
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| 187 | |
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| 188 | int |
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| 189 | BSP_local2vme_adrs(unsigned long am, unsigned long localaddr, unsigned long *pvmeaddr) |
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| 190 | { |
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[b83b70ae] | 191 | return theOps->xlate_adrs(0, 0, am,localaddr+PCI_DRAM_OFFSET,pvmeaddr); |
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[6d3ff66f] | 192 | } |
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| 193 | |
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| 194 | int |
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| 195 | BSP_installVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg) |
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| 196 | { |
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[b83b70ae] | 197 | return theOps->install_isr(vector, handler, arg); |
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[6d3ff66f] | 198 | } |
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| 199 | |
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| 200 | int |
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| 201 | BSP_removeVME_isr(unsigned long vector, BSP_VME_ISR_t handler, void *arg) |
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| 202 | { |
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[b83b70ae] | 203 | return theOps->remove_isr(vector, handler, arg); |
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[6d3ff66f] | 204 | } |
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| 205 | |
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| 206 | /* retrieve the currently installed ISR for a given vector */ |
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| 207 | BSP_VME_ISR_t |
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| 208 | BSP_getVME_isr(unsigned long vector, void **parg) |
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| 209 | { |
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[b83b70ae] | 210 | return theOps->get_isr(vector, parg); |
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[6d3ff66f] | 211 | } |
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| 212 | |
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| 213 | int |
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| 214 | BSP_enableVME_int_lvl(unsigned int level) |
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| 215 | { |
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[b83b70ae] | 216 | return theOps->enable_int_lvl(level); |
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[6d3ff66f] | 217 | } |
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| 218 | |
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| 219 | int |
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| 220 | BSP_disableVME_int_lvl(unsigned int level) |
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| 221 | { |
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[b83b70ae] | 222 | return theOps->disable_int_lvl(level); |
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[6d3ff66f] | 223 | } |
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| 224 | |
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| 225 | int |
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| 226 | BSP_VMEOutboundPortCfg( |
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| 227 | unsigned long port, |
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| 228 | unsigned long address_space, |
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| 229 | unsigned long vme_address, |
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| 230 | unsigned long pci_address, |
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| 231 | unsigned long size) |
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| 232 | { |
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[b83b70ae] | 233 | return theOps->outbound_p_cfg(port, address_space, vme_address, pci_address, size); |
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[6d3ff66f] | 234 | } |
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| 235 | |
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| 236 | int |
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| 237 | BSP_VMEInboundPortCfg( |
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| 238 | unsigned long port, |
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| 239 | unsigned long address_space, |
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| 240 | unsigned long vme_address, |
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| 241 | unsigned long pci_address, |
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| 242 | unsigned long size) |
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| 243 | { |
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[b83b70ae] | 244 | return theOps->inbound_p_cfg(port, address_space, vme_address, pci_address, size); |
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[6d3ff66f] | 245 | } |
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| 246 | |
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| 247 | void |
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| 248 | BSP_VMEOutboundPortsShow(FILE *f) |
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| 249 | { |
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[b83b70ae] | 250 | theOps->outbound_p_show(f); |
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[6d3ff66f] | 251 | } |
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| 252 | |
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| 253 | void |
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| 254 | BSP_VMEInboundPortsShow(FILE *f) |
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| 255 | { |
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[b83b70ae] | 256 | theOps->inbound_p_show(f); |
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[6d3ff66f] | 257 | } |
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| 258 | |
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[8388ea76] | 259 | int |
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| 260 | BSP_VMEDmaSetup(int channel, uint32_t bus_mode, uint32_t xfer_mode, void *custom_setup) |
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| 261 | { |
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| 262 | return theDmaOps->setup(channel, bus_mode, xfer_mode, custom_setup); |
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| 263 | } |
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| 264 | |
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| 265 | int |
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| 266 | BSP_VMEDmaStart(int channel, uint32_t pci_addr, uint32_t vme_addr, uint32_t n_bytes) |
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| 267 | { |
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| 268 | return theDmaOps->start(channel, pci_addr, vme_addr, n_bytes); |
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| 269 | } |
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| 270 | |
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| 271 | uint32_t |
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| 272 | BSP_VMEDmaStatus(int channel) |
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| 273 | { |
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| 274 | return theDmaOps->status(channel); |
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| 275 | } |
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| 276 | |
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| 277 | BSP_VMEDmaListDescriptor |
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| 278 | BSP_VMEDmaListDescriptorSetup( |
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| 279 | BSP_VMEDmaListDescriptor d, |
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| 280 | uint32_t attr_mask, |
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| 281 | uint32_t xfer_mode, |
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| 282 | uint32_t pci_addr, |
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| 283 | uint32_t vme_addr, |
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| 284 | uint32_t n_bytes) |
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| 285 | { |
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| 286 | VMEDmaListClass pc; |
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[863b0cef] | 287 | |
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[8388ea76] | 288 | if ( !d ) { |
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[863b0cef] | 289 | |
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| 290 | pc = theDmaOps->listClass; |
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| 291 | |
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[8388ea76] | 292 | return BSP_VMEDmaListDescriptorNewTool( |
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| 293 | pc, |
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| 294 | attr_mask, |
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| 295 | xfer_mode, |
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| 296 | pci_addr, |
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| 297 | vme_addr, |
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| 298 | n_bytes); |
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| 299 | |
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| 300 | } |
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[863b0cef] | 301 | |
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[8388ea76] | 302 | return BSP_VMEDmaListDescriptorSetupTool(d, attr_mask, xfer_mode, pci_addr, vme_addr, n_bytes); |
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| 303 | } |
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| 304 | |
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| 305 | int |
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| 306 | BSP_VMEDmaListStart(int channel, BSP_VMEDmaListDescriptor list) |
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| 307 | { |
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| 308 | return BSP_VMEDmaListDescriptorStartTool(0, channel, list); |
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| 309 | } |
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| 310 | |
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| 311 | /* NOT thread safe! */ |
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| 312 | int |
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| 313 | BSP_VMEDmaInstallISR(int channel, BSP_VMEDmaIRQCallback cb, void *usr_arg) |
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| 314 | { |
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| 315 | int vec; |
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| 316 | BSP_VME_ISR_t curr; |
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| 317 | void *carg; |
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| 318 | |
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| 319 | if ( channel < 0 || channel >= theDmaOps->nChannels ) |
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| 320 | return -1; |
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| 321 | |
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| 322 | vec = theDmaOps->vectors[channel]; |
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| 323 | |
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| 324 | curr = BSP_getVME_isr(vec, &carg); |
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| 325 | |
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| 326 | if ( cb && curr ) { |
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| 327 | /* IRQ currently in use */ |
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| 328 | return -1; |
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| 329 | } |
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| 330 | |
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| 331 | if ( !cb && !curr ) { |
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| 332 | /* Allow uninstall if no handler is currently installed; |
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| 333 | * just make sure IRQ is disabled |
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| 334 | */ |
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| 335 | BSP_disableVME_int_lvl(vec); |
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| 336 | return 0; |
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| 337 | } |
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| 338 | |
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| 339 | if ( cb ) { |
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| 340 | if ( BSP_installVME_isr(vec, (BSP_VME_ISR_t)cb, usr_arg) ) |
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| 341 | return -4; |
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| 342 | BSP_enableVME_int_lvl(vec); |
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| 343 | } else { |
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| 344 | BSP_disableVME_int_lvl(vec); |
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| 345 | if ( BSP_removeVME_isr(vec, curr, carg) ) |
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| 346 | return -4; |
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| 347 | } |
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| 348 | return 0; |
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| 349 | } |
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| 350 | |
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[b83b70ae] | 351 | #if defined(_VME_DRIVER_TSI148) && !defined(VME_CLEAR_BRIDGE_ERRORS) |
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| 352 | static unsigned short |
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| 353 | tsi_clear_errors(int quiet) |
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| 354 | { |
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| 355 | unsigned long v; |
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| 356 | unsigned short rval; |
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| 357 | v = vmeTsi148ClearVMEBusErrors(0); |
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| 358 | |
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| 359 | /* return bits 8..23 of VEAT; set bit 15 to make sure rval is nonzero on error */ |
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| 360 | rval = v ? ((v>>8) & 0xffff) | (1<<15) : 0; |
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| 361 | return rval; |
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| 362 | } |
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| 363 | |
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| 364 | #define VME_CLEAR_BRIDGE_ERRORS tsi_clear_errors |
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| 365 | #endif |
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[6d3ff66f] | 366 | |
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| 367 | int BSP_VMEInit() |
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| 368 | { |
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[b83b70ae] | 369 | #if defined(_VME_DRIVER_UNIVERSE) |
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| 370 | if ( 0 == vmeUniverseInit() ) { |
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[863b0cef] | 371 | theOps = &uniOpsRec; |
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| 372 | theDmaOps = &uniDmaOpsRec; |
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[b83b70ae] | 373 | vmeUniverseReset(); |
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[6d3ff66f] | 374 | } |
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[b83b70ae] | 375 | #endif |
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| 376 | #if defined(_VME_DRIVER_UNIVERSE) && defined(_VME_DRIVER_TSI148) |
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| 377 | else |
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| 378 | #endif |
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| 379 | #if defined(_VME_DRIVER_TSI148) |
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[2398f74] | 380 | if ( 0 == vmeTsi148Init() ) { |
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[863b0cef] | 381 | theOps = &tsiOpsRec; |
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| 382 | theDmaOps = &tsiDmaOpsRec; |
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| 383 | vmeTsi148Reset(); |
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[b83b70ae] | 384 | #ifdef VME_CLEAR_BRIDGE_ERRORS |
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| 385 | { |
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| 386 | extern unsigned short (*_BSP_clear_vmebridge_errors)(); |
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| 387 | |
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| 388 | _BSP_clear_vmebridge_errors = VME_CLEAR_BRIDGE_ERRORS; |
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| 389 | |
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| 390 | } |
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| 391 | #endif |
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| 392 | } |
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| 393 | #endif |
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| 394 | else |
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| 395 | /* maybe no VME at all - or no universe/tsi148 ... */ |
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| 396 | return -1; |
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| 397 | |
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[6d3ff66f] | 398 | return 0; |
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| 399 | } |
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| 400 | |
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| 401 | int BSP_VMEIrqMgrInstall() |
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| 402 | { |
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[b83b70ae] | 403 | int err; |
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| 404 | #ifndef BSP_VME_INSTALL_IRQ_MGR |
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[6d3ff66f] | 405 | /* No map; use first line only and obtain PIC wire from PCI config */ |
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[b83b70ae] | 406 | err = theOps->install_irq_mgr( |
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| 407 | theOps->irq_mgr_flags, /* use shared IRQs */ |
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| 408 | 0, -1, /* Universe/Tsi148 pin0 -> PIC line from config space */ |
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[6d3ff66f] | 409 | -1 /* terminate list */ |
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| 410 | ); |
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| 411 | #else |
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[b83b70ae] | 412 | BSP_VME_INSTALL_IRQ_MGR(err); |
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[6d3ff66f] | 413 | #endif |
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[b83b70ae] | 414 | |
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| 415 | if ( err ) |
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| 416 | return err; |
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| 417 | |
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| 418 | /* This feature is only supported by the Universe driver (not Tsi148) */ |
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[df9cadc2] | 419 | #if defined(BSP_PCI_VME_DRIVER_DOES_EOI) && defined(BSP_PIC_DO_EOI) |
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[b83b70ae] | 420 | #ifdef _VME_DRIVER_TSI148 |
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| 421 | #error "BSP_PCI_VME_DRIVER_DOES_EOI/BSP_PIC_DO_EOI feature can only be used with vmeUniverse" |
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| 422 | #endif |
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| 423 | if ( vmeUniverse0PciIrqLine < 0 ) |
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[6d3ff66f] | 424 | BSP_panic("Unable to get universe interrupt line info from PCI config"); |
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| 425 | _BSP_vme_bridge_irq = vmeUniverse0PciIrqLine; |
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[df9cadc2] | 426 | #endif |
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[6d3ff66f] | 427 | return 0; |
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| 428 | } |
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