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Date: Sun, 3 Dec 2006 19:19:00 +0100
From: Ivo van Doorn <ivdoorn@...il.com>
To: "John W. Linville" <linville@...driver.com>
Cc: netdev@...r.kernel.org
Subject: [PATCH 15/26] rt2x00: Add SIFS/PIFS/DIFS/EIFS defines
Introduce new defines for the SIFS, PIFS, EIFS, DIFS,
and make use of it in the drivers.
Signed-off-by Ivo van Doorn <IvDoorn@...il.com>
---
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2400pci.c wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2400pci.c
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2400pci.c 2006-12-03 14:03:05.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2400pci.c 2006-12-03 14:10:28.000000000 +0100
@@ -524,24 +524,22 @@
int short_slot_time)
{
u32 reg;
- u32 value;
-
- short_slot_time = short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
rt2x00_register_read(rt2x00dev, CSR11, ®);
- rt2x00_set_field32(®, CSR11_SLOT_TIME, short_slot_time);
+ rt2x00_set_field32(®, CSR11_SLOT_TIME,
+ short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
rt2x00_register_write(rt2x00dev, CSR11, reg);
rt2x00_register_read(rt2x00dev, CSR18, ®);
rt2x00_set_field32(®, CSR18_SIFS, SIFS);
- rt2x00_set_field32(®, CSR18_PIFS, SIFS + short_slot_time);
+ rt2x00_set_field32(®, CSR18_PIFS,
+ short_slot_time ? SHORT_PIFS : PIFS);
rt2x00_register_write(rt2x00dev, CSR18, reg);
rt2x00_register_read(rt2x00dev, CSR19, ®);
- value = SIFS + (2 * short_slot_time);
- rt2x00_set_field32(®, CSR19_DIFS, value);
- value = SIFS + get_duration(IEEE80211_HEADER + ACK_SIZE, 10);
- rt2x00_set_field32(®, CSR19_EIFS, value);
+ rt2x00_set_field32(®, CSR19_DIFS,
+ short_slot_time ? SHORT_DIFS : DIFS);
+ rt2x00_set_field32(®, CSR19_EIFS, EIFS);
rt2x00_register_write(rt2x00dev, CSR19, reg);
rt2x00_register_read(rt2x00dev, TXCSR1, ®);
@@ -553,36 +551,26 @@
static void rt2400pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
{
struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
- u32 reg[4];
+ u32 reg;
u32 value;
u32 preamble;
preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
? SHORT_PREAMBLE : PREAMBLE;
- /*
- * Extract the allowed ratemask from the device specific rate value,
- * We need to set ARCSR1 to the basic rate mask so we need to mask
- * off the non-basic rates.
- */
- reg[0] = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
-
- rt2x00_register_write(rt2x00dev, ARCSR1, reg[0]);
-
- rt2x00_register_read(rt2x00dev, TXCSR1, ®[0]);
- value = SIFS + PLCP
- + (2 * ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
- SHORT_SLOT_TIME : SLOT_TIME))
- + preamble
- + get_duration(ACK_SIZE, 10);
- rt2x00_set_field32(®[0], TXCSR1_ACK_TIMEOUT, value);
- value = SIFS + PLCP
- + preamble
- + get_duration(ACK_SIZE, 10);
- rt2x00_set_field32(®[0], TXCSR1_ACK_CONSUME_TIME, value);
- rt2x00_register_write(rt2x00dev, TXCSR1, reg[0]);
+ reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+ rt2x00_register_write(rt2x00dev, ARCSR1, reg);
+
+ rt2x00_register_read(rt2x00dev, TXCSR1, ®);
+ value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+ SHORT_DIFS : DIFS) +
+ PLCP + preamble + get_duration(ACK_SIZE, 10);
+ rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, value);
+ value = SIFS + PLCP + preamble + get_duration(ACK_SIZE, 10);
+ rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, value);
+ rt2x00_register_write(rt2x00dev, TXCSR1, reg);
- preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 8 : 0;
+ preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 0x08 : 0x00;
rt2x00_register_write(rt2x00dev, ARCSR2, 0x00700400 | preamble);
rt2x00_register_write(rt2x00dev, ARCSR3, 0x00380401 | preamble);
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2500pci.c wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2500pci.c
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2500pci.c 2006-12-03 14:00:23.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2500pci.c 2006-12-03 14:10:52.000000000 +0100
@@ -590,24 +590,22 @@
int short_slot_time)
{
u32 reg;
- u32 value;
-
- short_slot_time = short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
rt2x00_register_read(rt2x00dev, CSR11, ®);
- rt2x00_set_field32(®, CSR11_SLOT_TIME, short_slot_time);
+ rt2x00_set_field32(®, CSR11_SLOT_TIME,
+ short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
rt2x00_register_write(rt2x00dev, CSR11, reg);
rt2x00_register_read(rt2x00dev, CSR18, ®);
rt2x00_set_field32(®, CSR18_SIFS, SIFS);
- rt2x00_set_field32(®, CSR18_PIFS, SIFS + short_slot_time);
+ rt2x00_set_field32(®, CSR18_PIFS,
+ short_slot_time ? SHORT_PIFS : PIFS);
rt2x00_register_write(rt2x00dev, CSR18, reg);
rt2x00_register_read(rt2x00dev, CSR19, ®);
- value = SIFS + (2 * short_slot_time);
- rt2x00_set_field32(®, CSR19_DIFS, value);
- value = SIFS + get_duration(IEEE80211_HEADER + ACK_SIZE, 10);
- rt2x00_set_field32(®, CSR19_EIFS, value);
+ rt2x00_set_field32(®, CSR19_DIFS,
+ short_slot_time ? SHORT_DIFS : DIFS);
+ rt2x00_set_field32(®, CSR19_EIFS, EIFS);
rt2x00_register_write(rt2x00dev, CSR19, reg);
rt2x00_register_read(rt2x00dev, TXCSR1, ®);
@@ -619,36 +617,26 @@
static void rt2500pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
{
struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
- u32 reg[4];
+ u32 reg;
u32 value;
u32 preamble;
preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
? SHORT_PREAMBLE : PREAMBLE;
- /*
- * Extract the allowed ratemask from the device specific rate value,
- * We need to set ARCSR1 to the basic rate mask so we need to mask
- * off the non-basic rates.
- */
- reg[0] = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
-
- rt2x00_register_write(rt2x00dev, ARCSR1, reg[0]);
-
- rt2x00_register_read(rt2x00dev, TXCSR1, ®[0]);
- value = SIFS + PLCP
- + (2 * ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
- SHORT_SLOT_TIME : SLOT_TIME))
- + preamble
- + get_duration(ACK_SIZE, 10);
- rt2x00_set_field32(®[0], TXCSR1_ACK_TIMEOUT, value);
- value = SIFS + PLCP
- + preamble
- + get_duration(ACK_SIZE, 10);
- rt2x00_set_field32(®[0], TXCSR1_ACK_CONSUME_TIME, value);
- rt2x00_register_write(rt2x00dev, TXCSR1, reg[0]);
+ reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+ rt2x00_register_write(rt2x00dev, ARCSR1, reg);
+
+ rt2x00_register_read(rt2x00dev, TXCSR1, ®);
+ value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+ SHORT_DIFS : DIFS) +
+ PLCP + preamble + get_duration(ACK_SIZE, 10);
+ rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, value);
+ value = SIFS + PLCP + preamble + get_duration(ACK_SIZE, 10);
+ rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, value);
+ rt2x00_register_write(rt2x00dev, TXCSR1, reg);
- preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 8 : 0;
+ preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 0x08 : 0x00;
rt2x00_register_write(rt2x00dev, ARCSR2, 0x00700400 | preamble);
rt2x00_register_write(rt2x00dev, ARCSR3, 0x00380401 | preamble);
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2500usb.c wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2500usb.c
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2500usb.c 2006-12-03 14:00:12.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2500usb.c 2006-12-03 14:11:15.000000000 +0100
@@ -625,11 +625,11 @@
}
static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
- int short_slot_time)
+ unsigned short short_slot_time)
{
short_slot_time = short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
- rt2x00_register_write(rt2x00dev, MAC_CSR10, (u16)short_slot_time);
+ rt2x00_register_write(rt2x00dev, MAC_CSR10, short_slot_time);
}
static void rt2500usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
@@ -642,29 +642,22 @@
preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
? SHORT_PREAMBLE : PREAMBLE;
- /*
- * Extract the allowed ratemask from the device specific rate value,
- * We need to set TXRX_CSR11 to the basic rate mask so we need to mask
- * off the non-basic rates.
- */
reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
rt2x00_register_write(rt2x00dev, TXRX_CSR11, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR1, ®);
- value = SIFS + PLCP
- + (2 * ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
- SHORT_SLOT_TIME : SLOT_TIME))
- + preamble
- + get_duration(ACK_SIZE, 10);
+ value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+ SHORT_DIFS : DIFS) +
+ PLCP + preamble + get_duration(ACK_SIZE, 10);
rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, value);
rt2x00_register_write(rt2x00dev, TXRX_CSR1, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR10, ®);
- if (DEVICE_GET_RATE_FIELD(rate, PREAMBLE))
- reg |= 0x0004;
+ if (preamble == SHORT_PREAMBLE)
+ rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 1);
else
- reg &= ~0x0004;
+ rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE, 0);
rt2x00_register_write(rt2x00dev, TXRX_CSR10, reg);
}
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2x00.h wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2x00.h
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt2x00.h 2006-12-03 13:55:51.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt2x00.h 2006-12-03 14:13:46.000000000 +0100
@@ -107,17 +107,22 @@
#define CLEAR_FLAGS(__dev) ( (__dev)->flags = 0 )
/*
- * Standard timning and size defines.
+ * Standard timing and size defines.
*/
#define ACK_SIZE 14
#define IEEE80211_HEADER 24
#define PLCP 48
#define BEACON 100
-#define SIFS 10
#define PREAMBLE 144
#define SHORT_PREAMBLE 72
#define SLOT_TIME 20
#define SHORT_SLOT_TIME 9
+#define SIFS 10
+#define PIFS ( SIFS + SLOT_TIME )
+#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
+#define DIFS ( PIFS + SLOT_TIME )
+#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
+#define EIFS ( SIFS + (8 * (IEEE80211_HEADER + ACK_SIZE)) )
/*
* IEEE802.11 header defines
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt61pci.c wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt61pci.c
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt61pci.c 2006-12-03 14:00:36.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt61pci.c 2006-12-03 14:11:38.000000000 +0100
@@ -818,7 +818,6 @@
int short_slot_time)
{
u32 reg;
- u32 value;
short_slot_time = short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
@@ -829,8 +828,7 @@
rt2x00_register_read(rt2x00dev, MAC_CSR8, ®);
rt2x00_set_field32(®, MAC_CSR8_SIFS, SIFS);
rt2x00_set_field32(®, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
- value = SIFS + get_duration(IEEE80211_HEADER + ACK_SIZE, 10);
- rt2x00_set_field32(®, MAC_CSR8_EIFS, value);
+ rt2x00_set_field32(®, MAC_CSR8_EIFS, EIFS);
rt2x00_register_write(rt2x00dev, MAC_CSR8, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR0, ®);
@@ -862,11 +860,9 @@
rt2x00_register_write(rt2x00dev, TXRX_CSR5, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR0, ®);
- value = SIFS + PLCP
- + (2 * ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
- SHORT_SLOT_TIME : SLOT_TIME))
- + preamble
- + get_duration(ACK_SIZE, 10);
+ value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+ SHORT_DIFS : DIFS) +
+ PLCP + preamble + get_duration(ACK_SIZE, 10);
rt2x00_set_field32(®, TXRX_CSR0_RX_ACK_TIMEOUT, value);
rt2x00_register_write(rt2x00dev, TXRX_CSR0, reg);
diff -rU3 wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt73usb.c wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt73usb.c
--- wireless-dev-stats/drivers/net/wireless/d80211/rt2x00/rt73usb.c 2006-12-03 14:00:46.000000000 +0100
+++ wireless-dev-timing/drivers/net/wireless/d80211/rt2x00/rt73usb.c 2006-12-03 14:11:59.000000000 +0100
@@ -708,7 +708,6 @@
int short_slot_time)
{
u32 reg;
- u32 value;
short_slot_time = short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
@@ -719,8 +718,7 @@
rt2x00_register_read(rt2x00dev, MAC_CSR8, ®);
rt2x00_set_field32(®, MAC_CSR8_SIFS, SIFS);
rt2x00_set_field32(®, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
- value = SIFS + get_duration(IEEE80211_HEADER + ACK_SIZE, 10);
- rt2x00_set_field32(®, MAC_CSR8_EIFS, value);
+ rt2x00_set_field32(®, MAC_CSR8_EIFS, EIFS);
rt2x00_register_write(rt2x00dev, MAC_CSR8, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR0, ®);
@@ -742,21 +740,14 @@
preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
? SHORT_PREAMBLE : PREAMBLE;
- /*
- * Extract the allowed ratemask from the device specific rate value,
- * We need to set TXRX_CSR5 to the basic rate mask so we need to mask
- * off the non-basic rates.
- */
reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
rt2x00_register_write(rt2x00dev, TXRX_CSR5, reg);
rt2x00_register_read(rt2x00dev, TXRX_CSR0, ®);
- value = SIFS + PLCP
- + (2 * ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
- SHORT_SLOT_TIME : SLOT_TIME))
- + preamble
- + get_duration(ACK_SIZE, 10);
+ value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+ SHORT_DIFS : DIFS) +
+ PLCP + preamble + get_duration(ACK_SIZE, 10);
rt2x00_set_field32(®, TXRX_CSR0_RX_ACK_TIMEOUT, value);
rt2x00_register_write(rt2x00dev, TXRX_CSR0, reg);
-
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