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/drivers/net/wireless/iwlwifi/iwl-bus.h

https://github.com/mstsirkin/linux
C Header | 139 lines | 50 code | 14 blank | 75 comment | 0 complexity | 5d0778919459037d9207069b8397ea20 MD5 | raw file
  1. /******************************************************************************
  2. *
  3. * This file is provided under a dual BSD/GPLv2 license. When using or
  4. * redistributing this file, you may do so under either license.
  5. *
  6. * GPL LICENSE SUMMARY
  7. *
  8. * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
  9. *
  10. * This program is free software; you can redistribute it and/or modify
  11. * it under the terms of version 2 of the GNU General Public License as
  12. * published by the Free Software Foundation.
  13. *
  14. * This program is distributed in the hope that it will be useful, but
  15. * WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17. * General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22. * USA
  23. *
  24. * The full GNU General Public License is included in this distribution
  25. * in the file called LICENSE.GPL.
  26. *
  27. * Contact Information:
  28. * Intel Linux Wireless <ilw@linux.intel.com>
  29. * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30. *
  31. * BSD LICENSE
  32. *
  33. * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  34. * All rights reserved.
  35. *
  36. * Redistribution and use in source and binary forms, with or without
  37. * modification, are permitted provided that the following conditions
  38. * are met:
  39. *
  40. * * Redistributions of source code must retain the above copyright
  41. * notice, this list of conditions and the following disclaimer.
  42. * * Redistributions in binary form must reproduce the above copyright
  43. * notice, this list of conditions and the following disclaimer in
  44. * the documentation and/or other materials provided with the
  45. * distribution.
  46. * * Neither the name Intel Corporation nor the names of its
  47. * contributors may be used to endorse or promote products derived
  48. * from this software without specific prior written permission.
  49. *
  50. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61. *
  62. *****************************************************************************/
  63. #ifndef __iwl_pci_h__
  64. #define __iwl_pci_h__
  65. struct iwl_bus;
  66. /**
  67. * struct iwl_bus_ops - bus specific operations
  68. * @get_pm_support: must returns true if the bus can go to sleep
  69. * @apm_config: will be called during the config of the APM configuration
  70. * @set_drv_data: set the drv_data pointer to the bus layer
  71. * @get_hw_id: prints the hw_id in the provided buffer
  72. * @write8: write a byte to register at offset ofs
  73. * @write32: write a dword to register at offset ofs
  74. * @wread32: read a dword at register at offset ofs
  75. */
  76. struct iwl_bus_ops {
  77. bool (*get_pm_support)(struct iwl_bus *bus);
  78. void (*apm_config)(struct iwl_bus *bus);
  79. void (*set_drv_data)(struct iwl_bus *bus, void *drv_data);
  80. void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len);
  81. void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
  82. void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
  83. u32 (*read32)(struct iwl_bus *bus, u32 ofs);
  84. };
  85. struct iwl_bus {
  86. /* Common data to all buses */
  87. void *drv_data; /* driver's context */
  88. struct device *dev;
  89. struct iwl_bus_ops *ops;
  90. unsigned int irq;
  91. /* pointer to bus specific struct */
  92. /*Ensure that this pointer will always be aligned to sizeof pointer */
  93. char bus_specific[0] __attribute__((__aligned__(sizeof(void *))));
  94. };
  95. static inline bool bus_get_pm_support(struct iwl_bus *bus)
  96. {
  97. return bus->ops->get_pm_support(bus);
  98. }
  99. static inline void bus_apm_config(struct iwl_bus *bus)
  100. {
  101. bus->ops->apm_config(bus);
  102. }
  103. static inline void bus_set_drv_data(struct iwl_bus *bus, void *drv_data)
  104. {
  105. bus->ops->set_drv_data(bus, drv_data);
  106. }
  107. static inline void bus_get_hw_id(struct iwl_bus *bus, char buf[], int buf_len)
  108. {
  109. bus->ops->get_hw_id(bus, buf, buf_len);
  110. }
  111. static inline void bus_write8(struct iwl_bus *bus, u32 ofs, u8 val)
  112. {
  113. bus->ops->write8(bus, ofs, val);
  114. }
  115. static inline void bus_write32(struct iwl_bus *bus, u32 ofs, u32 val)
  116. {
  117. bus->ops->write32(bus, ofs, val);
  118. }
  119. static inline u32 bus_read32(struct iwl_bus *bus, u32 ofs)
  120. {
  121. return bus->ops->read32(bus, ofs);
  122. }
  123. int __must_check iwl_pci_register_driver(void);
  124. void iwl_pci_unregister_driver(void);
  125. #endif