acx_irq.h

   1 #ifndef _ACX_IRQ_H_
   2 #define _ACX_IRQ_H_
   3
   4 /*
   5  * acx_irq.h: IRQ constants, top half and bottom half declarations.
   6  *
   7  * Copyright (c) 2008, the ACX100 project.
   8  *
   9  * This file is licensed under GPLv2.
  10  */
  11
  12 #include "acx_struct.h"
  13
  14 /*
  15  * List of jobs that have to be done post interrupt.
  16  *
  17  * FIXME: the b43 driver uses two queues: a work_queue and a delayed_work. Maybe
  18  * some of these commands may be delayed? If so, rename TASKLET to WORK/DELAYED.
  19  */
  20 #define ACX_TASKLET_CMD_STOP_SCAN       0x01
  21 #define ACX_TASKLET_CMD_ASSOCIATE       0x02
  22 #define ACX_TASKLET_CMD_RADIO_RECALIB   0x04
  23 #define ACX_TASKLET_UPDATE_CARD_CFG     0x08
  24 #define ACX_TASKLET_TX_CLEANUP          0x10
  25 #define ACX_TASKLET_COMPLETE_SCAN       0x20
  26 #define ACX_TASKLET_RESTART_SCAN        0x40
  27
  28 /* IRQ Constants
  29 ** (outside of "#ifdef PCI" because USB (mis)uses HOST_INT_SCAN_COMPLETE) */
  30 #define ACX_IRQ_RX_DATA         0x0001
  31 #define ACX_IRQ_TX_COMPLETE     0x0002
  32 #define ACX_IRQ_TX_XFER         0x0004
  33 #define ACX_IRQ_RX_COMPLETE     0x0008
  34 #define ACX_IRQ_DTIM            0x0010
  35 #define ACX_IRQ_BEACON          0x0020
  36 #define ACX_IRQ_TIMER           0x0040
  37 #define ACX_IRQ_KEY_NOT_FOUND   0x0080
  38 #define ACX_IRQ_IV_ICV_FAILURE  0x0100
  39 #define ACX_IRQ_CMD_COMPLETE    0x0200
  40 #define ACX_IRQ_INFO            0x0400
  41 #define ACX_IRQ_OVERFLOW        0x0800
  42 #define ACX_IRQ_PROCESS_ERROR   0x1000
  43 #define ACX_IRQ_SCAN_COMPLETE   0x2000
  44 #define ACX_IRQ_FCS_THRESHOLD   0x4000
  45 #define ACX_IRQ_UNKNOWN         0x8000
  46
  47 #define ACX_IRQ_ALL             0xffff
  48
  49 /*
  50  * The default masks for ACX100 and ACX111 differ!
  51  *
  52  * The ACX*_DEFAULT_IRQ_MASK values define what the masks of the card should
  53  * initially be set to. The ACX*_DISABLE_ALL_IRQS define what mask should be set
  54  * in order to not receive anymore interrupts.
  55  *
  56  * FIXME: the values below are taken from the existing code, they may not be
  57  * accurate. I don't have any RE skill, so I cannot really tell :/
  58  */
  59
  60 /*
  61  * ACX111
  62  */
  63 #define ACX111_DEFAULT_NEGATED_IRQ_MASK ( \
  64         ACX_IRQ_TX_COMPLETE | \
  65         ACX_IRQ_RX_COMPLETE | \
  66         ACX_IRQ_IV_ICV_FAILURE | \
  67         ACX_IRQ_CMD_COMPLETE | \
  68         ACX_IRQ_INFO | \
  69         ACX_IRQ_SCAN_COMPLETE | \
  70         ACX_IRQ_FCS_THRESHOLD \
  71 )
  72
  73 #define ACX111_DEFAULT_IRQ_MASK \
  74         ((u16) ~ ACX111_DEFAULT_NEGATED_IRQ_MASK )
  75
  76 #define ACX111_DISABLE_ALL_IRQS \
  77         ((u16) ~ (ACX_IRQ_UNKNOWN))
  78
  79 /*
  80  * ACX100
  81  */
  82 #define ACX100_DEFAULT_NEGATED_IRQ_MASK ( \
  83         ACX_IRQ_TX_COMPLETE | \
  84         ACX_IRQ_RX_COMPLETE | \
  85         ACX_IRQ_CMD_COMPLETE | \
  86         ACX_IRQ_INFO | \
  87         ACX_IRQ_SCAN_COMPLETE \
  88 )
  89
  90 #define ACX100_DEFAULT_IRQ_MASK \
  91         ((u16) ~ ACX100_DEFAULT_NEGATED_IRQ_MASK )
  92
  93 /*
  94  * About the value below: the original code said:
  95  *
  96  * "Or else acx100 won't signal cmd completion, right?"
  97  *
  98  * Also, why isn't ACX_IRQ_UNKNOWN part of that mask? Good question.
  99  */
 100 #define ACX100_DISABLE_ALL_IRQS \
 101         ((u16) ~ (ACX_IRQ_CMD_COMPLETE))
 102
 103 /*
 104  * Function prototypes
 105  */
 106
 107 /*
 108  * These two functions disable the interrupts on the card itself.
 109  */
 110 //void acx_enable_irqs(acx_device_t *adev, u16 mask);
 111 //u16 acx_disable_irqs(acx_device_t *adev, u16 mask);
 112
 113 #endif /* _ACX_IRQ_H_ */