From 076f9582a6b82e54339ee815130315744b730787 Mon Sep 17 00:00:00 2001
From: Ivo van Doorn <ivdoorn@gmail.com>
Date: Sat, 20 Dec 2008 10:59:02 +0100
Subject: [PATCH] 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>
---
drivers/net/wireless/rt2x00/rt2500pci.c | 2 +-
drivers/net/wireless/rt2x00/rt2500usb.c | 2 +-
drivers/net/wireless/rt2x00/rt2x00queue.c | 6 +++++-
drivers/net/wireless/rt2x00/rt2x00queue.h | 5 +++--
drivers/net/wireless/rt2x00/rt2x00reg.h | 10 ++++++++++
drivers/net/wireless/rt2x00/rt61pci.c | 2 +-
drivers/net/wireless/rt2x00/rt73usb.c | 2 +-
7 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index fb86e2c55248..ebcc49770922 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 7b97160e2b5a..e992bad64644 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 f4a951338f8f..67140e75608d 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 282937153408..5a9d2c3d1bb0 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 c2fba7c9f05c..93f8427055cf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00reg.h
+++ b/drivers/net/wireless/rt2x00/rt2x00reg.h
@@ -124,6 +124,16 @@ enum cipher {
CIPHER_MAX = 4,
};
+/*
+ * 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,
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 875bcdcf6bc8..82d35a5a4aa7 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 c2658108d9c3..2b70c01b55e9 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));
--
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