[02/06] rt2x00: Initialize AMPDU_BA_WINSIZE register

Commit Message

Ivo van Doorn Sept. 8, 2010, 6:56 p.m. UTC

None

Patch

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 70a5cb8..2edc774 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -639,6 +639,18 @@ 
 #define LED_CFG_LED_POLAR		FIELD32(0x40000000)
 
 /*
+ * AMPDU_BA_WINSIZE: Force BlockAck window size
+ * FORCE_WINSIZE_ENABLE:
+ *   0: Disable forcing of BlockAck window size
+ *   1: Enable forcing of BlockAck window size, overwrites values BlockAck
+ *      window size values in the TXWI
+ * FORCE_WINSIZE: BlockAck window size
+ */
+#define AMPDU_BA_WINSIZE		0x1040
+#define AMPDU_BA_WINSIZE_FORCE_WINSIZE_ENABLE FIELD32(0x00000020)
+#define AMPDU_BA_WINSIZE_FORCE_WINSIZE	FIELD32(0x0000001f)
+
+/*
  * XIFS_TIME_CFG: MAC timing
  * CCKM_SIFS_TIME: unit 1us. Applied after CCK RX/TX
  * OFDM_SIFS_TIME: unit 1us. Applied after OFDM RX/TX
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 27a6e22..9cfb9b31 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2053,6 +2053,14 @@  static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
 	rt2800_register_write(rt2x00dev, LG_FBK_CFG1, reg);
 
 	/*
+	 * Do not force the BA window size, we use the TXWI to set it
+	 */
+	rt2800_register_read(rt2x00dev, AMPDU_BA_WINSIZE, &reg);
+	rt2x00_set_field32(&reg, AMPDU_BA_WINSIZE_FORCE_WINSIZE_ENABLE, 0);
+	rt2x00_set_field32(&reg, AMPDU_BA_WINSIZE_FORCE_WINSIZE, 0);
+	rt2800_register_write(rt2x00dev, AMPDU_BA_WINSIZE, reg);
+
+	/*
 	 * We must clear the error counters.
 	 * These registers are cleared on read,
 	 * so we may pass a useless variable to store the value.