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

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  63 #ifndef __iwl_pci_h__
  64 #define __iwl_pci_h__
  65
  66 struct iwl_bus;
  67
  68 /**
  69  * struct iwl_bus_ops - bus specific operations
  70  * @get_pm_support: must returns true if the bus can go to sleep
  71  * @apm_config: will be called during the config of the APM configuration
  72  * @set_drv_data: set the drv_data pointer to the bus layer
  73  * @get_hw_id: prints the hw_id in the provided buffer
  74  * @write8: write a byte to register at offset ofs
  75  * @write32: write a dword to register at offset ofs
  76  * @wread32: read a dword at register at offset ofs
  77  */
  78 struct iwl_bus_ops {
  79         bool (*get_pm_support)(struct iwl_bus *bus);
  80         void (*apm_config)(struct iwl_bus *bus);
  81         void (*set_drv_data)(struct iwl_bus *bus, void *drv_data);
  82         void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len);
  83         void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
  84         void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
  85         u32 (*read32)(struct iwl_bus *bus, u32 ofs);
  86 };
  87
  88 struct iwl_bus {
  89         /* Common data to all buses */
  90         void *drv_data; /* driver's context */
  91         struct device *dev;
  92         struct iwl_bus_ops *ops;
  93
  94         unsigned int irq;
  95
  96         /* pointer to bus specific struct */
  97         /*Ensure that this pointer will always be aligned to sizeof pointer */
  98         char bus_specific[0] __attribute__((__aligned__(sizeof(void *))));
  99 };
 100
 101 static inline bool bus_get_pm_support(struct iwl_bus *bus)
 102 {
 103         return bus->ops->get_pm_support(bus);
 104 }
 105
 106 static inline void bus_apm_config(struct iwl_bus *bus)
 107 {
 108         bus->ops->apm_config(bus);
 109 }
 110
 111 static inline void bus_set_drv_data(struct iwl_bus *bus, void *drv_data)
 112 {
 113         bus->ops->set_drv_data(bus, drv_data);
 114 }
 115
 116 static inline void bus_get_hw_id(struct iwl_bus *bus, char buf[], int buf_len)
 117 {
 118         bus->ops->get_hw_id(bus, buf, buf_len);
 119 }
 120
 121 static inline void bus_write8(struct iwl_bus *bus, u32 ofs, u8 val)
 122 {
 123         bus->ops->write8(bus, ofs, val);
 124 }
 125
 126 static inline void bus_write32(struct iwl_bus *bus, u32 ofs, u32 val)
 127 {
 128         bus->ops->write32(bus, ofs, val);
 129 }
 130
 131 static inline u32 bus_read32(struct iwl_bus *bus, u32 ofs)
 132 {
 133         return bus->ops->read32(bus, ofs);
 134 }
 135
 136 int __must_check iwl_pci_register_driver(void);
 137 void iwl_pci_unregister_driver(void);
 138
 139 #endif