acxpci.h

   1 #ifndef _ACXPCI_H_
   2 #define _ACXPCI_H_
   3
   4 /*
   5  * acxpci.h: PCI related constants and structures.
   6  *
   7  * Copyright (c) 2008 Francis Galiegue <fgaliegue@gmail.com> for the ACX100
   8  * driver project.
   9  *
  10  * This file is licensed under the GPLv2. See the README file for details.
  11  */
  12
  13 /*
  14  * MMIO registers
  15  */
  16
  17 /* Register I/O offsets */
  18 #define ACX100_EEPROM_ID_OFFSET 0x380
  19
  20 /*
  21  * Please add further ACX hardware register definitions only when
  22  * it turns out you need them in the driver, and please try to use firmware
  23  * functionality instead, since using direct I/O access instead of letting the
  24  * firmware do it might confuse the firmware's state machine.
  25  */
  26
  27 /* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
  28 ** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
  29
  30 /*
  31  * NOTE about ACX_IO_IRQ_REASON: this register is CLEARED ON READ.
  32  */
  33 enum {
  34         ACX_IO_SOFT_RESET = 0,
  35
  36         ACX_IO_SLV_MEM_ADDR,
  37         ACX_IO_SLV_MEM_DATA,
  38         ACX_IO_SLV_MEM_CTL,
  39         ACX_IO_SLV_END_CTL,
  40
  41         ACX_IO_FEMR,            /* Function Event Mask */
  42
  43         ACX_IO_INT_TRIG,
  44         ACX_IO_IRQ_MASK,
  45         ACX_IO_IRQ_STATUS_NON_DES,
  46         ACX_IO_IRQ_REASON,
  47         ACX_IO_IRQ_ACK,
  48         ACX_IO_HINT_TRIG,
  49
  50         ACX_IO_ENABLE,
  51
  52         ACX_IO_EEPROM_CTL,
  53         ACX_IO_EEPROM_ADDR,
  54         ACX_IO_EEPROM_DATA,
  55         ACX_IO_EEPROM_CFG,
  56
  57         ACX_IO_PHY_ADDR,
  58         ACX_IO_PHY_DATA,
  59         ACX_IO_PHY_CTL,
  60
  61         ACX_IO_GPIO_OE,
  62
  63         ACX_IO_GPIO_OUT,
  64
  65         ACX_IO_CMD_MAILBOX_OFFS,
  66         ACX_IO_INFO_MAILBOX_OFFS,
  67         ACX_IO_EEPROM_INFORMATION,
  68
  69         ACX_IO_EE_START,
  70         ACX_IO_SOR_CFG,
  71         ACX_IO_ECPU_CTRL
  72 };
  73 /* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
  74 ** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
  75
  76 /* Values for ACX_IO_INT_TRIG register: */
  77 /* inform hw that rxdesc in queue needs processing */
  78 #define INT_TRIG_RXPRC          0x08
  79 /* inform hw that txdesc in queue needs processing */
  80 #define INT_TRIG_TXPRC          0x04
  81 /* ack that we received info from info mailbox */
  82 #define INT_TRIG_INFOACK        0x02
  83 /* inform hw that we have filled command mailbox */
  84 #define INT_TRIG_CMD            0x01
  85
  86 /*
  87  * In-hardware TX/RX structures
  88  */
  89
  90 struct txhostdesc {
  91         acx_ptr data_phy;                       /* 0x00 [u8 *] */
  92         u16     data_offset;                    /* 0x04 */
  93         u16     reserved;                       /* 0x06 */
  94         u16     Ctl_16; /* 16bit value, endianness!! */
  95         u16     length;                 /* 0x0a */
  96         acx_ptr desc_phy_next;          /* 0x0c [txhostdesc *] */
  97         acx_ptr pNext;                  /* 0x10 [txhostdesc *] */
  98         u32     Status;                 /* 0x14, unused on Tx */
  99 /* From here on you can use this area as you want (variable length, too!) */
 100         u8      *data;
 101         struct ieee80211_tx_status txstatus;
 102         struct sk_buff *skb;
 103
 104 } __attribute__ ((packed));
 105
 106 struct rxhostdesc {
 107         acx_ptr data_phy;                       /* 0x00 [rxbuffer_t *] */
 108         u16     data_offset;                    /* 0x04 */
 109         u16     reserved;                       /* 0x06 */
 110         u16     Ctl_16;                 /* 0x08; 16bit value, endianness!! */
 111         u16     length;                 /* 0x0a */
 112         acx_ptr desc_phy_next;          /* 0x0c [rxhostdesc_t *] */
 113         acx_ptr pNext;                  /* 0x10 [rxhostdesc_t *] */
 114         u32     Status;                 /* 0x14 */
 115 /* From here on you can use this area as you want (variable length, too!) */
 116         rxbuffer_t *data;
 117 } __attribute__ ((packed));
 118
 119
 120 #endif /* _ACXPCI_H_ */