ath10k: define an enum to enable cycle counter wraparound logic

QCA988X hw implements a different cycle counter wraparound
behaviour when compared to QCA4019. To properly handle different
wraparound logic for these chipsets replace already available
bool hw_params member, has_shifted_cc_wraparound, with an
enum which could be extended to handle different wraparound
behaviour. This patch keeps the existing logic functionally
same and a prepares cycle counter wraparound handling to
extend for other chips.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
[kvalo@qca.qualcomm.com: change also QCA9887 wrap type]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 3dbe4975faa2..55038c760732 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -351,6 +351,17 @@ enum ath10k_hw_4addr_pad {
 	ATH10K_HW_4ADDR_PAD_BEFORE,
 };
 
+enum ath10k_hw_cc_wraparound_type {
+	ATH10K_HW_CC_WRAP_DISABLED = 0,
+
+	/* This type is when the HW chip has a quirky Cycle Counter
+	 * wraparound which resets to 0x7fffffff instead of 0. All
+	 * other CC related counters (e.g. Rx Clear Count) are divided
+	 * by 2 so they never wraparound themselves.
+	 */
+	ATH10K_HW_CC_WRAP_SHIFTED_ALL = 1,
+};
+
 /* Target specific defines for MAIN firmware */
 #define TARGET_NUM_VDEVS			8
 #define TARGET_NUM_PEER_AST			2