package/rt2x00/src/rt2x00pci.h

   1 /*
   2         Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
   3         <http://rt2x00.serialmonkey.com>
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the
  17         Free Software Foundation, Inc.,
  18         59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22         Module: rt2x00pci
  23         Abstract: Data structures for the rt2x00pci module.
  24         Supported chipsets: rt2460, rt2560, rt2561, rt2561s & rt2661.
  25  */
  26
  27 #ifndef RT2X00PCI_H
  28 #define RT2X00PCI_H
  29
  30 /*
  31  * This variable should be used with the
  32  * pci_driver structure initialization.
  33  */
  34 #define PCI_DEVICE_DATA(__ops)  .driver_data = (kernel_ulong_t)(__ops)
  35
  36 /*
  37  * Register defines.
  38  * When register access attempts should be repeated
  39  * only REGISTER_BUSY_COUNT attempts with a delay
  40  * of REGISTER_BUSY_DELAY us should be taken.
  41  */
  42 #define REGISTER_BUSY_COUNT     5
  43 #define REGISTER_BUSY_DELAY     100
  44
  45 /*
  46  * Descriptor availability flags.
  47  * All PCI device descriptors have these 2 flags
  48  * with the exact same definition.
  49  */
  50 #define TXD_ENTRY_OWNER_NIC     FIELD32(0x00000001)
  51 #define TXD_ENTRY_VALID         FIELD32(0x00000002)
  52 #define RXD_ENTRY_OWNER_NIC     FIELD32(0x00000001)
  53
  54 /*
  55  * Register access.
  56  */
  57 static inline void rt2x00pci_register_read(const struct rt2x00_dev *rt2x00dev,
  58         const unsigned long offset, u32 *value)
  59 {
  60         *value = readl(rt2x00dev->csr_addr + offset);
  61 }
  62
  63 static inline void rt2x00pci_register_multiread(
  64         const struct rt2x00_dev *rt2x00dev,
  65         const unsigned long offset, void *value, const u16 length)
  66 {
  67         memcpy_fromio(value, rt2x00dev->csr_addr + offset, length);
  68 }
  69
  70 static inline void rt2x00pci_register_write(const struct rt2x00_dev *rt2x00dev,
  71         const unsigned long offset, u32 value)
  72 {
  73         writel(value, rt2x00dev->csr_addr + offset);
  74 }
  75
  76 static inline void rt2x00pci_register_multiwrite(
  77         const struct rt2x00_dev *rt2x00dev,
  78         const unsigned long offset, void *value, const u16 length)
  79 {
  80         memcpy_toio(rt2x00dev->csr_addr + offset, value, length);
  81 }
  82
  83 /*
  84  * Beacon handlers.
  85  */
  86 int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
  87         struct ieee80211_tx_control *control);
  88 void rt2x00pci_beacondone(struct rt2x00_dev *rt2x00dev, const int queue);
  89
  90 /*
  91  * TX data handlers.
  92  */
  93 int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
  94         struct data_ring *ring, struct sk_buff *skb,
  95         struct ieee80211_tx_control *control);
  96
  97 /*
  98  * RX data handlers.
  99  */
 100 void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev);
 101
 102 /*
 103  * Device initialization handlers.
 104  */
 105 int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev);
 106 void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev);
 107
 108 /*
 109  * PCI driver handlers.
 110  */
 111 int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id);
 112 void rt2x00pci_remove(struct pci_dev *pci_dev);
 113 #ifdef CONFIG_PM
 114 int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state);
 115 int rt2x00pci_resume(struct pci_dev *pci_dev);
 116 #endif /* CONFIG_PM */
 117
 118 #endif /* RT2X00PCI_H */