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
  71  * @get_pm_support: must returns true if the bus can go to sleep
  72  * @apm_config: will be called during the config of the APM configuration
  73  * @set_drv_data: set the priv pointer to the bus layer
  74  * @get_hw_id: prints the hw_id in the provided buffer
  75  * @write8: write a byte to register at offset ofs
  76  * @write32: write a dword to register at offset ofs
  77  * @wread32: read a dword at register at offset ofs
  78  */
  79 struct iwl_bus_ops {
  80         bool (*get_pm_support)(struct iwl_bus *bus);
  81         void (*apm_config)(struct iwl_bus *bus);
  82         void (*set_drv_data)(struct iwl_bus *bus, void *drv_data);
  83         void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len);
  84         void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
  85         void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
  86         u32 (*read32)(struct iwl_bus *bus, u32 ofs);
  87 };
  88
  89 struct iwl_bus {
  90         /* Common data to all buses */
  91
  92         /*TODO: priv should be void * */
  93         struct iwl_priv *priv; /* driver's context */
  94         struct device *dev;
  95         struct iwl_bus_ops *ops;
  96
  97         unsigned int irq;
  98
  99         /* pointer to bus specific struct */
 100         /*Ensure that this pointer will always be aligned to sizeof pointer */
 101         char bus_specific[0] __attribute__((__aligned__(sizeof(void *))));
 102 };
 103
 104 static inline bool bus_get_pm_support(struct iwl_bus *bus)
 105 {
 106         return bus->ops->get_pm_support(bus);
 107 }
 108
 109 static inline void bus_apm_config(struct iwl_bus *bus)
 110 {
 111         bus->ops->apm_config(bus);
 112 }
 113
 114 static inline void bus_set_drv_data(struct iwl_bus *bus, void *drv_data)
 115 {
 116         bus->ops->set_drv_data(bus, drv_data);
 117 }
 118
 119 static inline void bus_get_hw_id(struct iwl_bus *bus, char buf[], int buf_len)
 120 {
 121         bus->ops->get_hw_id(bus, buf, buf_len);
 122 }
 123
 124 static inline void bus_write8(struct iwl_bus *bus, u32 ofs, u8 val)
 125 {
 126         bus->ops->write8(bus, ofs, val);
 127 }
 128
 129 static inline void bus_write32(struct iwl_bus *bus, u32 ofs, u32 val)
 130 {
 131         bus->ops->write32(bus, ofs, val);
 132 }
 133
 134 static inline u32 bus_read32(struct iwl_bus *bus, u32 ofs)
 135 {
 136         return bus->ops->read32(bus, ofs);
 137 }
 138
 139 int __must_check iwl_pci_register_driver(void);
 140 void iwl_pci_unregister_driver(void);
 141
 142 #endif