ath9k_hw: start building an abstraction layer for hardware routines

ath9k supports the AR5008, AR9001 and AR9002 family of Atheros
chipsets, all 802.11n. The new breed of 802.11n chips, the
AR9003 family will be supported as well soon. To help with its
support we're going to add a few callbacks for hardware routines
which differ considerably instead of adding branch checks for
the revision at runtime.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 45 insertions, 2 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index f4821cf33b87..dfe8502866bb 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -440,6 +440,36 @@ struct ath_gen_timer_table {
         } timer_mask;
 };
 
+/**
+ * struct ath_hw_private_ops - callbacks used internally by hardware code
+ *
+ * This structure contains private callbacks designed to only be used internally
+ * by the hardware core.
+ *
+ * @init_cal_settings: Initializes calibration settings
+ * @init_mode_regs: Initializes mode registers
+ * @macversion_supported: If this specific mac revision is supported
+ */
+struct ath_hw_private_ops {
+        void (*init_cal_settings)(struct ath_hw *ah);
+        void (*init_mode_regs)(struct ath_hw *ah);
+        bool (*macversion_supported)(u32 macversion);
+};
+
+/**
+ * struct ath_hw_ops - callbacks used by hardware code and driver code
+ *
+ * This structure contains callbacks designed to to be used internally by
+ * hardware code and also by the lower level driver.
+ *
+ * @config_pci_powersave:
+ */
+struct ath_hw_ops {
+        void (*config_pci_powersave)(struct ath_hw *ah,
+                                     int restore,
+                                     int power_off);
+};
+
 struct ath_hw {
         struct ieee80211_hw *hw;
         struct ath_common common;
@@ -540,6 +570,11 @@ struct ath_hw {
         void (*ath9k_hw_spur_mitigate_freq)(struct ath_hw *ah,
                                             struct ath9k_channel *chan);
 
+        /* Private to hardware code */
+        struct ath_hw_private_ops private_ops;
+        /* Accessed by the lower level driver */
+        struct ath_hw_ops ops;
+
         /* Used to program the radio on non single-chip devices */
         u32 *analogBank0Data;
         u32 *analogBank1Data;
@@ -619,6 +654,16 @@ static inline struct ath_regulatory *ath9k_hw_regulatory(struct ath_hw *ah)
         return &(ath9k_hw_common(ah)->regulatory);
 }
 
+static inline struct ath_hw_private_ops *ath9k_hw_private_ops(struct ath_hw *ah)
+{
+        return &ah->private_ops;
+}
+
+static inline struct ath_hw_ops *ath9k_hw_ops(struct ath_hw *ah)
+{
+        return &ah->ops;
+}
+
 /* Initialization, Detach, Reset */
 const char *ath9k_hw_probe(u16 vendorid, u16 devid);
 void ath9k_hw_deinit(struct ath_hw *ah);
@@ -681,8 +726,6 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
 
 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);
 
-void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off);
-
 /* Interrupt Handling */
 bool ath9k_hw_intrpend(struct ath_hw *ah);
 bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked);