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 #define ACX_IO_SOFT_RESET               0
  34 #define ACX_IO_SLV_MEM_ADDR             1
  35 #define ACX_IO_SLV_MEM_DATA             2
  36 #define ACX_IO_SLV_MEM_CTL              3
  37 #define ACX_IO_SLV_END_CTL              4
  38 /*
  39  * Original code said that the following is the "function event mask". Whatever
  40  * that means.
  41  */
  42 #define ACX_IO_FEMR                     5
  43 #define ACX_IO_INT_TRIG                 6
  44 #define ACX_IO_IRQ_MASK                 7
  45 #define ACX_IO_IRQ_STATUS_NON_DES       8
  46 #define ACX_IO_IRQ_REASON               9
  47 #define ACX_IO_IRQ_ACK                  10
  48 #define ACX_IO_HINT_TRIG                11
  49 #define ACX_IO_ENABLE                   12
  50 #define ACX_IO_EEPROM_CTL               13
  51 #define ACX_IO_EEPROM_ADDR              14
  52 #define ACX_IO_EEPROM_DATA              15
  53 #define ACX_IO_EEPROM_CFG               16
  54 #define ACX_IO_PHY_ADDR                 17
  55 #define ACX_IO_PHY_DATA                 18
  56 #define ACX_IO_PHY_CTL                  19
  57 #define ACX_IO_GPIO_OE                  20
  58 #define ACX_IO_GPIO_OUT                 21
  59 #define ACX_IO_CMD_MAILBOX_OFFS         22
  60 #define ACX_IO_INFO_MAILBOX_OFFS        23
  61 #define ACX_IO_EEPROM_INFORMATION       24
  62 #define ACX_IO_EE_START                 25
  63 #define ACX_IO_SOR_CFG                  26
  64 #define ACX_IO_ECPU_CTRL                27
  65 /* ***** ABSOLUTELY ALWAYS KEEP OFFSETS IN SYNC WITH THE INITIALIZATION
  66 ** OF THE I/O ARRAYS!!!! (grep for '^IO_ACX') ***** */
  67
  68 /* Values for ACX_IO_INT_TRIG register: */
  69 /* inform hw that rxdesc in queue needs processing */
  70 #define INT_TRIG_RXPRC          0x08
  71 /* inform hw that txdesc in queue needs processing */
  72 #define INT_TRIG_TXPRC          0x04
  73 /* ack that we received info from info mailbox */
  74 #define INT_TRIG_INFOACK        0x02
  75 /* inform hw that we have filled command mailbox */
  76 #define INT_TRIG_CMD            0x01
  77
  78 /*
  79  * In-hardware TX/RX structures
  80  */
  81
  82 struct txhostdesc {
  83         acx_ptr data_phy;                       /* 0x00 [u8 *] */
  84         u16     data_offset;                    /* 0x04 */
  85         u16     reserved;                       /* 0x06 */
  86         u16     Ctl_16; /* 16bit value, endianness!! */
  87         u16     length;                 /* 0x0a */
  88         acx_ptr desc_phy_next;          /* 0x0c [txhostdesc *] */
  89         acx_ptr pNext;                  /* 0x10 [txhostdesc *] */
  90         u32     Status;                 /* 0x14, unused on Tx */
  91 /* From here on you can use this area as you want (variable length, too!) */
  92         u8      *data;
  93         struct ieee80211_tx_status txstatus;
  94         struct sk_buff *skb;
  95
  96 } __attribute__ ((packed));
  97
  98 struct rxhostdesc {
  99         acx_ptr data_phy;                       /* 0x00 [rxbuffer_t *] */
 100         u16     data_offset;                    /* 0x04 */
 101         u16     reserved;                       /* 0x06 */
 102         u16     Ctl_16;                 /* 0x08; 16bit value, endianness!! */
 103         u16     length;                 /* 0x0a */
 104         acx_ptr desc_phy_next;          /* 0x0c [rxhostdesc_t *] */
 105         acx_ptr pNext;                  /* 0x10 [rxhostdesc_t *] */
 106         u32     Status;                 /* 0x14 */
 107 /* From here on you can use this area as you want (variable length, too!) */
 108         rxbuffer_t *data;
 109 } __attribute__ ((packed));
 110
 111
 112 #endif /* _ACXPCI_H_ */