rt2x00: Remove ENTRY_TXD_OFDM_RATE

The flag ENTRY_TXD_OFDM_RATE isn't flexible enough
to indicate which rate modulation should be used for
a frame. This will become a problem when 11n support
is added.

Remove the flag and replace it with an enum value which
can better indicate the exact rate modulation.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

7 files changed, 22 insertions, 7 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index fb86e2c5524..ebcc4977092 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1233,7 +1233,7 @@ static void rt2500pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_OFDM,
-                           test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
+                           (txdesc->rate_mode == RATE_MODE_OFDM));
         rt2x00_set_field32(&word, TXD_W0_CIPHER_OWNER, 1);
         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 7b97160e2b5..e992bad6464 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1217,7 +1217,7 @@ static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_OFDM,
-                           test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
+                           (txdesc->rate_mode == RATE_MODE_OFDM));
         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index f4a951338f8..67140e75608 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -314,9 +314,13 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
         } else
                 txdesc->ifs = IFS_SIFS;
 
+        /*
+         * Determine rate modulation.
+         */
         hwrate = rt2x00_get_rate(rate->hw_value);
+        txdesc->rate_mode = RATE_MODE_CCK;
         if (hwrate->flags & DEV_RATE_OFDM)
-                __set_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags);
+                txdesc->rate_mode = RATE_MODE_OFDM;
 
         /*
          * Apply TX descriptor handling by components
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 28293715340..5a9d2c3d1bb 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -222,7 +222,6 @@ struct txdone_entry_desc {
  *
  * @ENTRY_TXD_RTS_FRAME: This frame is a RTS frame.
  * @ENTRY_TXD_CTS_FRAME: This frame is a CTS-to-self frame.
- * @ENTRY_TXD_OFDM_RATE: This frame is send out with an OFDM rate.
  * @ENTRY_TXD_GENERATE_SEQ: This frame requires sequence counter.
  * @ENTRY_TXD_FIRST_FRAGMENT: This is the first frame.
  * @ENTRY_TXD_MORE_FRAG: This frame is followed by another fragment.
@@ -238,7 +237,6 @@ struct txdone_entry_desc {
 enum txentry_desc_flags {
         ENTRY_TXD_RTS_FRAME,
         ENTRY_TXD_CTS_FRAME,
-        ENTRY_TXD_OFDM_RATE,
         ENTRY_TXD_GENERATE_SEQ,
         ENTRY_TXD_FIRST_FRAGMENT,
         ENTRY_TXD_MORE_FRAG,
@@ -263,6 +261,7 @@ enum txentry_desc_flags {
  * @length_low: PLCP length low word.
  * @signal: PLCP signal.
  * @service: PLCP service.
+ * @rate_mode: Rate mode (See @enum rate_modulation).
  * @retry_limit: Max number of retries.
  * @aifs: AIFS value.
  * @ifs: IFS value.
@@ -282,6 +281,8 @@ struct txentry_desc {
         u16 signal;
         u16 service;
 
+        u16 rate_mode;
+
         short retry_limit;
         short aifs;
         short ifs;
diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h
index c2fba7c9f05..93f8427055c 100644
--- a/drivers/net/wireless/rt2x00/rt2x00reg.h
+++ b/drivers/net/wireless/rt2x00/rt2x00reg.h
@@ -125,6 +125,16 @@ enum cipher {
 };
 
 /*
+ * Rate modulations
+ */
+enum rate_modulation {
+        RATE_MODE_CCK = 0,
+        RATE_MODE_OFDM = 1,
+        RATE_MODE_HT_MIX = 2,
+        RATE_MODE_HT_GREENFIELD = 3,
+};
+
+/*
  * Register handlers.
  * We store the position of a register field inside a field structure,
  * This will simplify the process of setting and reading a certain field
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 875bcdcf6bc..82d35a5a4aa 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1847,7 +1847,7 @@ static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_OFDM,
-                           test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
+                           (txdesc->rate_mode == RATE_MODE_OFDM));
         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
                            test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index c2658108d9c..2b70c01b55e 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1498,7 +1498,7 @@ static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
         rt2x00_set_field32(&word, TXD_W0_OFDM,
-                           test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
+                           (txdesc->rate_mode == RATE_MODE_OFDM));
         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
                            test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));