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authorJohn W. Linville <linville@tuxdriver.com>2010-07-13 15:57:29 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-07-13 15:57:29 -0400
commite300d955debdadf599c36e47eb0bc16f5976215c (patch)
tree8fafcc789dc06e90665e6eee6388af228bbd2fd7 /drivers/net/wireless/rt2x00
parent242647bcf8464860f173f3d4d4ab3490d3558518 (diff)
parent815868e7b5c207ba42d5b317ccc51f8112732268 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts: drivers/net/wireless/wl12xx/wl1271_cmd.h
Diffstat (limited to 'drivers/net/wireless/rt2x00')
-rw-r--r--drivers/net/wireless/rt2x00/rt2400pci.c69
-rw-r--r--drivers/net/wireless/rt2x00/rt2500pci.c71
-rw-r--r--drivers/net/wireless/rt2x00/rt2500usb.c14
-rw-r--r--drivers/net/wireless/rt2x00/rt2800.h30
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c434
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.h43
-rw-r--r--drivers/net/wireless/rt2x00/rt2800pci.c229
-rw-r--r--drivers/net/wireless/rt2x00/rt2800usb.c178
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00.h25
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00config.c4
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00dev.c96
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00lib.h26
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00link.c65
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00mac.c50
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00pci.c6
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00queue.c4
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00queue.h11
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00reg.h5
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00usb.c50
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00usb.h10
-rw-r--r--drivers/net/wireless/rt2x00/rt61pci.c68
-rw-r--r--drivers/net/wireless/rt2x00/rt73usb.c7
22 files changed, 1019 insertions, 476 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 3bedf566c8e..5063e01410e 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -586,9 +586,11 @@ static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev,
static inline void rt2400pci_set_vgc(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, u8 vgc_level)
{
- rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
- qual->vgc_level = vgc_level;
- qual->vgc_level_reg = vgc_level;
+ if (qual->vgc_level_reg != vgc_level) {
+ rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
+ qual->vgc_level = vgc_level;
+ qual->vgc_level_reg = vgc_level;
+ }
}
static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
@@ -877,7 +879,8 @@ static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
- int mask = (state == STATE_RADIO_IRQ_OFF);
+ int mask = (state == STATE_RADIO_IRQ_OFF) ||
+ (state == STATE_RADIO_IRQ_OFF_ISR);
u32 reg;
/*
@@ -978,7 +981,9 @@ static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2400pci_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
rt2400pci_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
@@ -1233,23 +1238,10 @@ static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev,
}
}
-static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
+static irqreturn_t rt2400pci_interrupt_thread(int irq, void *dev_instance)
{
struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg;
-
- /*
- * Get the interrupt sources & saved to local variable.
- * Write register value back to clear pending interrupts.
- */
- rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
- rt2x00pci_register_write(rt2x00dev, CSR7, reg);
-
- if (!reg)
- return IRQ_NONE;
-
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- return IRQ_HANDLED;
+ u32 reg = rt2x00dev->irqvalue[0];
/*
* Handle interrupts, walk through all bits
@@ -1287,9 +1279,40 @@ static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
rt2400pci_txdone(rt2x00dev, QID_AC_BK);
+ /* Enable interrupts again. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_ON_ISR);
return IRQ_HANDLED;
}
+static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
+{
+ struct rt2x00_dev *rt2x00dev = dev_instance;
+ u32 reg;
+
+ /*
+ * Get the interrupt sources & saved to local variable.
+ * Write register value back to clear pending interrupts.
+ */
+ rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+ rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+ if (!reg)
+ return IRQ_NONE;
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return IRQ_HANDLED;
+
+ /* Store irqvalues for use in the interrupt thread. */
+ rt2x00dev->irqvalue[0] = reg;
+
+ /* Disable interrupts, will be enabled again in the interrupt thread. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_OFF_ISR);
+
+ return IRQ_WAKE_THREAD;
+}
+
/*
* Device probe functions.
*/
@@ -1399,8 +1422,8 @@ static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
/*
* Check if the BBP tuning should be enabled.
*/
- if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
- __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+ if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
return 0;
}
@@ -1566,7 +1589,8 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = {
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
- .set_tim = rt2x00mac_set_tim,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2400pci_conf_tx,
@@ -1577,6 +1601,7 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = {
static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
.irq_handler = rt2400pci_interrupt,
+ .irq_handler_thread = rt2400pci_interrupt_thread,
.probe_hw = rt2400pci_probe_hw,
.initialize = rt2x00pci_initialize,
.uninitialize = rt2x00pci_uninitialize,
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 69d231d8395..c2a555d5376 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -626,6 +626,7 @@ static inline void rt2500pci_set_vgc(struct rt2x00_dev *rt2x00dev,
{
if (qual->vgc_level_reg != vgc_level) {
rt2500pci_bbp_write(rt2x00dev, 17, vgc_level);
+ qual->vgc_level = vgc_level;
qual->vgc_level_reg = vgc_level;
}
}
@@ -700,13 +701,10 @@ dynamic_cca_tune:
* R17 is inside the dynamic tuning range,
* start tuning the link based on the false cca counter.
*/
- if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40) {
+ if (qual->false_cca > 512 && qual->vgc_level_reg < 0x40)
rt2500pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level_reg);
- qual->vgc_level = qual->vgc_level_reg;
- } else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32) {
+ else if (qual->false_cca < 100 && qual->vgc_level_reg > 0x32)
rt2500pci_set_vgc(rt2x00dev, qual, --qual->vgc_level_reg);
- qual->vgc_level = qual->vgc_level_reg;
- }
}
/*
@@ -1035,7 +1033,8 @@ static void rt2500pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
static void rt2500pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
- int mask = (state == STATE_RADIO_IRQ_OFF);
+ int mask = (state == STATE_RADIO_IRQ_OFF) ||
+ (state == STATE_RADIO_IRQ_OFF_ISR);
u32 reg;
/*
@@ -1136,7 +1135,9 @@ static int rt2500pci_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2500pci_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
rt2500pci_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
@@ -1369,23 +1370,10 @@ static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
}
}
-static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
+static irqreturn_t rt2500pci_interrupt_thread(int irq, void *dev_instance)
{
struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg;
-
- /*
- * Get the interrupt sources & saved to local variable.
- * Write register value back to clear pending interrupts.
- */
- rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
- rt2x00pci_register_write(rt2x00dev, CSR7, reg);
-
- if (!reg)
- return IRQ_NONE;
-
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- return IRQ_HANDLED;
+ u32 reg = rt2x00dev->irqvalue[0];
/*
* Handle interrupts, walk through all bits
@@ -1423,9 +1411,41 @@ static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
rt2500pci_txdone(rt2x00dev, QID_AC_BK);
+ /* Enable interrupts again. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_ON_ISR);
+
return IRQ_HANDLED;
}
+static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
+{
+ struct rt2x00_dev *rt2x00dev = dev_instance;
+ u32 reg;
+
+ /*
+ * Get the interrupt sources & saved to local variable.
+ * Write register value back to clear pending interrupts.
+ */
+ rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+ rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+ if (!reg)
+ return IRQ_NONE;
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return IRQ_HANDLED;
+
+ /* Store irqvalues for use in the interrupt thread. */
+ rt2x00dev->irqvalue[0] = reg;
+
+ /* Disable interrupts, will be enabled again in the interrupt thread. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_OFF_ISR);
+
+ return IRQ_WAKE_THREAD;
+}
+
/*
* Device probe functions.
*/
@@ -1557,9 +1577,8 @@ static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
* Check if the BBP tuning should be enabled.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
-
- if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
- __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+ if (!rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
/*
* Read the RSSI <-> dBm offset information.
@@ -1864,7 +1883,8 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = {
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
- .set_tim = rt2x00mac_set_tim,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
@@ -1875,6 +1895,7 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = {
static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
.irq_handler = rt2500pci_interrupt,
+ .irq_handler_thread = rt2500pci_interrupt_thread,
.probe_hw = rt2500pci_probe_hw,
.initialize = rt2x00pci_initialize,
.uninitialize = rt2x00pci_uninitialize,
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 44205526013..242d59558b7 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1004,7 +1004,9 @@ static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2500usb_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
/* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
@@ -1471,13 +1473,6 @@ static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
/*
- * Check if the BBP tuning should be disabled.
- */
- rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
- if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
- __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
-
- /*
* Read the RSSI <-> dBm offset information.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
@@ -1743,7 +1738,7 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
}
- __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -1763,6 +1758,8 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = {
.configure_filter = rt2x00mac_configure_filter,
.set_tim = rt2x00mac_set_tim,
.set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
@@ -1778,6 +1775,7 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
.rfkill_poll = rt2500usb_rfkill_poll,
.link_stats = rt2500usb_link_stats,
.reset_tuner = rt2500usb_reset_tuner,
+ .watchdog = rt2x00usb_watchdog,
.write_tx_desc = rt2500usb_write_tx_desc,
.write_beacon = rt2500usb_write_beacon,
.get_tx_data_len = rt2500usb_get_tx_data_len,
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 552f9f4c73d..ed4ebcdde7c 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -74,7 +74,7 @@
* Signal information.
* Default offset is required for RSSI <-> dBm conversion.
*/
-#define DEFAULT_RSSI_OFFSET 120 /* FIXME */
+#define DEFAULT_RSSI_OFFSET 120
/*
* Register layout information.
@@ -719,14 +719,20 @@
#define TBTT_TIMER 0x1124
/*
- * INT_TIMER_CFG:
+ * INT_TIMER_CFG: timer configuration
+ * PRE_TBTT_TIMER: leadtime to tbtt for pretbtt interrupt in units of 1/16 TU
+ * GP_TIMER: period of general purpose timer in units of 1/16 TU
*/
#define INT_TIMER_CFG 0x1128
+#define INT_TIMER_CFG_PRE_TBTT_TIMER FIELD32(0x0000ffff)
+#define INT_TIMER_CFG_GP_TIMER FIELD32(0xffff0000)
/*
* INT_TIMER_EN: GP-timer and pre-tbtt Int enable
*/
#define INT_TIMER_EN 0x112c
+#define INT_TIMER_EN_PRE_TBTT_TIMER FIELD32(0x00000001)
+#define INT_TIMER_EN_GP_TIMER FIELD32(0x00000002)
/*
* CH_IDLE_STA: channel idle time
@@ -803,6 +809,18 @@
#define EDCA_TID_AC_MAP 0x1310
/*
+ * TX_PWR_CFG:
+ */
+#define TX_PWR_CFG_RATE0 FIELD32(0x0000000f)
+#define TX_PWR_CFG_RATE1 FIELD32(0x000000f0)
+#define TX_PWR_CFG_RATE2 FIELD32(0x00000f00)
+#define TX_PWR_CFG_RATE3 FIELD32(0x0000f000)
+#define TX_PWR_CFG_RATE4 FIELD32(0x000f0000)
+#define TX_PWR_CFG_RATE5 FIELD32(0x00f00000)
+#define TX_PWR_CFG_RATE6 FIELD32(0x0f000000)
+#define TX_PWR_CFG_RATE7 FIELD32(0xf0000000)
+
+/*
* TX_PWR_CFG_0:
*/
#define TX_PWR_CFG_0 0x1314
@@ -1853,9 +1871,15 @@ struct mac_iveiv_entry {
#define EEPROM_TXPOWER_A_2 FIELD16(0xff00)
/*
- * EEPROM TXpower byrate: 20MHZ power
+ * EEPROM TXPOWER by rate: tx power per tx rate for HT20 mode
*/
#define EEPROM_TXPOWER_BYRATE 0x006f
+#define EEPROM_TXPOWER_BYRATE_SIZE 9
+
+#define EEPROM_TXPOWER_BYRATE_RATE0 FIELD16(0x000f)
+#define EEPROM_TXPOWER_BYRATE_RATE1 FIELD16(0x00f0)
+#define EEPROM_TXPOWER_BYRATE_RATE2 FIELD16(0x0f00)
+#define EEPROM_TXPOWER_BYRATE_RATE3 FIELD16(0xf000)
/*
* EEPROM BBP.
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index d3cf0cc3950..b66e0fd8f0f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -33,6 +33,7 @@
Abstract: rt2800 generic device routines.
*/
+#include <linux/crc-ccitt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -272,6 +273,160 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
}
EXPORT_SYMBOL_GPL(rt2800_wait_wpdma_ready);
+static bool rt2800_check_firmware_crc(const u8 *data, const size_t len)
+{
+ u16 fw_crc;
+ u16 crc;
+
+ /*
+ * The last 2 bytes in the firmware array are the crc checksum itself,
+ * this means that we should never pass those 2 bytes to the crc
+ * algorithm.
+ */
+ fw_crc = (data[len - 2] << 8 | data[len - 1]);
+
+ /*
+ * Use the crc ccitt algorithm.
+ * This will return the same value as the legacy driver which
+ * used bit ordering reversion on the both the firmware bytes
+ * before input input as well as on the final output.
+ * Obviously using crc ccitt directly is much more efficient.
+ */
+ crc = crc_ccitt(~0, data, len - 2);
+
+ /*
+ * There is a small difference between the crc-itu-t + bitrev and
+ * the crc-ccitt crc calculation. In the latter method the 2 bytes
+ * will be swapped, use swab16 to convert the crc to the correct
+ * value.
+ */
+ crc = swab16(crc);
+
+ return fw_crc == crc;
+}
+
+int rt2800_check_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
+{
+ size_t offset = 0;
+ size_t fw_len;
+ bool multiple;
+
+ /*
+ * PCI(e) & SOC devices require firmware with a length
+ * of 8kb. USB devices require firmware files with a length
+ * of 4kb. Certain USB chipsets however require different firmware,
+ * which Ralink only provides attached to the original firmware
+ * file. Thus for USB devices, firmware files have a length
+ * which is a multiple of 4kb.
+ */
+ if (rt2x00_is_usb(rt2x00dev)) {
+ fw_len = 4096;
+ multiple = true;
+ } else {
+ fw_len = 8192;
+ multiple = true;
+ }
+
+ /*
+ * Validate the firmware length
+ */
+ if (len != fw_len && (!multiple || (len % fw_len) != 0))
+ return FW_BAD_LENGTH;
+
+ /*
+ * Check if the chipset requires one of the upper parts
+ * of the firmware.
+ */
+ if (rt2x00_is_usb(rt2x00dev) &&
+ !rt2x00_rt(rt2x00dev, RT2860) &&
+ !rt2x00_rt(rt2x00dev, RT2872) &&
+ !rt2x00_rt(rt2x00dev, RT3070) &&
+ ((len / fw_len) == 1))
+ return FW_BAD_VERSION;
+
+ /*
+ * 8kb firmware files must be checked as if it were
+ * 2 separate firmware files.
+ */
+ while (offset < len) {
+ if (!rt2800_check_firmware_crc(data + offset, fw_len))
+ return FW_BAD_CRC;
+
+ offset += fw_len;
+ }
+
+ return FW_OK;
+}
+EXPORT_SYMBOL_GPL(rt2800_check_firmware);
+
+int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
+{
+ unsigned int i;
+ u32 reg;
+
+ /*
+ * Wait for stable hardware.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
+ if (reg && reg != ~0)
+ break;
+ msleep(1);
+ }
+
+ if (i == REGISTER_BUSY_COUNT) {
+ ERROR(rt2x00dev, "Unstable hardware.\n");
+ return -EBUSY;
+ }
+
+ if (rt2x00_is_pci(rt2x00dev))
+ rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002);
+
+ /*
+ * Disable DMA, will be reenabled later when enabling
+ * the radio.
+ */
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
+
+ /*
+ * Write firmware to the device.
+ */
+ rt2800_drv_write_firmware(rt2x00dev, data, len);
+
+ /*
+ * Wait for device to stabilize.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
+ if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY))
+ break;
+ msleep(1);
+ }
+
+ if (i == REGISTER_BUSY_COUNT) {
+ ERROR(rt2x00dev, "PBF system register not ready.\n");
+ return -EBUSY;
+ }
+
+ /*
+ * Initialize firmware.
+ */
+ rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
+ rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
+ msleep(1);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800_load_firmware);
+
void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc)
{
u32 word;
@@ -325,9 +480,53 @@ void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc)
}
EXPORT_SYMBOL_GPL(rt2800_write_txwi);
-void rt2800_process_rxwi(struct sk_buff *skb, struct rxdone_entry_desc *rxdesc)
+static int rt2800_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxwi_w2)
{
- __le32 *rxwi = (__le32 *) skb->data;
+ int rssi0 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI0);
+ int rssi1 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI1);
+ int rssi2 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI2);
+ u16 eeprom;
+ u8 offset0;
+ u8 offset1;
+ u8 offset2;
+
+ if (rt2x00dev->rx_status.band == IEEE80211_BAND_2GHZ) {
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_BG, &eeprom);
+ offset0 = rt2x00_get_field16(eeprom, EEPROM_RSSI_BG_OFFSET0);
+ offset1 = rt2x00_get_field16(eeprom, EEPROM_RSSI_BG_OFFSET1);
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_BG2, &eeprom);
+ offset2 = rt2x00_get_field16(eeprom, EEPROM_RSSI_BG2_OFFSET2);
+ } else {
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_A, &eeprom);
+ offset0 = rt2x00_get_field16(eeprom, EEPROM_RSSI_A_OFFSET0);
+ offset1 = rt2x00_get_field16(eeprom, EEPROM_RSSI_A_OFFSET1);
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_A2, &eeprom);
+ offset2 = rt2x00_get_field16(eeprom, EEPROM_RSSI_A2_OFFSET2);
+ }
+
+ /*
+ * Convert the value from the descriptor into the RSSI value
+ * If the value in the descriptor is 0, it is considered invalid
+ * and the default (extremely low) rssi value is assumed
+ */
+ rssi0 = (rssi0) ? (-12 - offset0 - rt2x00dev->lna_gain - rssi0) : -128;
+ rssi1 = (rssi1) ? (-12 - offset1 - rt2x00dev->lna_gain - rssi1) : -128;
+ rssi2 = (rssi2) ? (-12 - offset2 - rt2x00dev->lna_gain - rssi2) : -128;
+
+ /*
+ * mac80211 only accepts a single RSSI value. Calculating the
+ * average doesn't deliver a fair answer either since -60:-60 would
+ * be considered equally good as -50:-70 while the second is the one
+ * which gives less energy...
+ */
+ rssi0 = max(rssi0, rssi1);
+ return max(rssi0, rssi2);
+}
+
+void rt2800_process_rxwi(struct queue_entry *entry,
+ struct rxdone_entry_desc *rxdesc)
+{
+ __le32 *rxwi = (__le32 *) entry->skb->data;
u32 word;
rt2x00_desc_read(rxwi, 0, &word);
@@ -358,14 +557,15 @@ void rt2800_process_rxwi(struct sk_buff *skb, struct rxdone_entry_desc *rxdesc)
rt2x00_desc_read(rxwi, 2, &word);
- rxdesc->rssi =
- (rt2x00_get_field32(word, RXWI_W2_RSSI0) +
- rt2x00_get_field32(word, RXWI_W2_RSSI1)) / 2;
+ /*
+ * Convert descriptor AGC value to RSSI value.
+ */
+ rxdesc->rssi = rt2800_agc_to_rssi(entry->queue->rt2x00dev, word);
/*
* Remove RXWI descriptor from start of buffer.
*/
- skb_pull(skb, RXWI_DESC_SIZE);
+ skb_pull(entry->skb, RXWI_DESC_SIZE);
}
EXPORT_SYMBOL_GPL(rt2800_process_rxwi);
@@ -428,7 +628,7 @@ void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
dev_kfree_skb_any(entry->skb);
entry->skb = NULL;
}
-EXPORT_SYMBOL(rt2800_write_beacon);
+EXPORT_SYMBOL_GPL(rt2800_write_beacon);
static void inline rt2800_clear_beacon(struct rt2x00_dev *rt2x00dev,
unsigned int beacon_base)
@@ -760,8 +960,18 @@ void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf,
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_SYNC, conf->sync);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE,
- (conf->sync == TSF_SYNC_BEACON));
+ (conf->sync == TSF_SYNC_ADHOC ||
+ conf->sync == TSF_SYNC_AP_NONE));
rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+
+ /*
+ * Enable pre tbtt interrupt for beaconing modes
+ */
+ rt2800_register_read(rt2x00dev, INT_TIMER_EN, &reg);
+ rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER,
+ (conf->sync == TSF_SYNC_AP_NONE));
+ rt2800_register_write(rt2x00dev, INT_TIMER_EN, reg);
+
}
if (flags & CONFIG_UPDATE_MAC) {
@@ -1086,66 +1296,115 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
}
static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
- const int txpower)
+ const int max_txpower)
{
+ u8 txpower;
+ u8 max_value = (u8)max_txpower;
+ u16 eeprom;
+ int i;
u32 reg;
- u32 value = TXPOWER_G_TO_DEV(txpower);
u8 r1;
+ u32 offset;
+ /*
+ * set to normal tx power mode: +/- 0dBm
+ */
rt2800_bbp_read(rt2x00dev, 1, &r1);
rt2x00_set_field8(&r1, BBP1_TX_POWER, 0);
rt2800_bbp_write(rt2x00dev, 1, r1);
- rt2800_register_read(rt2x00dev, TX_PWR_CFG_0, &reg);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_1MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_2MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_55MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_11MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_6MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_9MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_12MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_0_18MBS, value);
- rt2800_register_write(rt2x00dev, TX_PWR_CFG_0, reg);
-
- rt2800_register_read(rt2x00dev, TX_PWR_CFG_1, &reg);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_24MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_36MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_48MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_54MBS, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_MCS0, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_MCS1, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_MCS2, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_1_MCS3, value);
- rt2800_register_write(rt2x00dev, TX_PWR_CFG_1, reg);
-
- rt2800_register_read(rt2x00dev, TX_PWR_CFG_2, &reg);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS4, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS5, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS6, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS7, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS8, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS9, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS10, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_2_MCS11, value);
- rt2800_register_write(rt2x00dev, TX_PWR_CFG_2, reg);
-
- rt2800_register_read(rt2x00dev, TX_PWR_CFG_3, &reg);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_MCS12, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_MCS13, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_MCS14, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_MCS15, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_UKNOWN1, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_UKNOWN2, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_UKNOWN3, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_3_UKNOWN4, value);
- rt2800_register_write(rt2x00dev, TX_PWR_CFG_3, reg);
-
- rt2800_register_read(rt2x00dev, TX_PWR_CFG_4, &reg);
- rt2x00_set_field32(&reg, TX_PWR_CFG_4_UKNOWN5, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_4_UKNOWN6, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_4_UKNOWN7, value);
- rt2x00_set_field32(&reg, TX_PWR_CFG_4_UKNOWN8, value);
- rt2800_register_write(rt2x00dev, TX_PWR_CFG_4, reg);
+ /*
+ * The eeprom contains the tx power values for each rate. These
+ * values map to 100% tx power. Each 16bit word contains four tx
+ * power values and the order is the same as used in the TX_PWR_CFG
+ * registers.
+ */
+ offset = TX_PWR_CFG_0;
+
+ for (i = 0; i < EEPROM_TXPOWER_BYRATE_SIZE; i += 2) {
+ /* just to be safe */
+ if (offset > TX_PWR_CFG_4)
+ break;
+
+ rt2800_register_read(rt2x00dev, offset, &reg);
+
+ /* read the next four txpower values */
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TXPOWER_BYRATE + i,
+ &eeprom);
+
+ /* TX_PWR_CFG_0: 1MBS, TX_PWR_CFG_1: 24MBS,
+ * TX_PWR_CFG_2: MCS4, TX_PWR_CFG_3: MCS12,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE0);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE0,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 2MBS, TX_PWR_CFG_1: 36MBS,
+ * TX_PWR_CFG_2: MCS5, TX_PWR_CFG_3: MCS13,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE1);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE1,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 55MBS, TX_PWR_CFG_1: 48MBS,
+ * TX_PWR_CFG_2: MCS6, TX_PWR_CFG_3: MCS14,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE2);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE2,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 11MBS, TX_PWR_CFG_1: 54MBS,
+ * TX_PWR_CFG_2: MCS7, TX_PWR_CFG_3: MCS15,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE3);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE3,
+ min(txpower, max_value));
+
+ /* read the next four txpower values */
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TXPOWER_BYRATE + i + 1,
+ &eeprom);
+
+ /* TX_PWR_CFG_0: 6MBS, TX_PWR_CFG_1: MCS0,
+ * TX_PWR_CFG_2: MCS8, TX_PWR_CFG_3: unknown,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE0);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE4,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 9MBS, TX_PWR_CFG_1: MCS1,
+ * TX_PWR_CFG_2: MCS9, TX_PWR_CFG_3: unknown,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE1);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE5,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 12MBS, TX_PWR_CFG_1: MCS2,
+ * TX_PWR_CFG_2: MCS10, TX_PWR_CFG_3: unknown,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE2);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE6,
+ min(txpower, max_value));
+
+ /* TX_PWR_CFG_0: 18MBS, TX_PWR_CFG_1: MCS3,
+ * TX_PWR_CFG_2: MCS11, TX_PWR_CFG_3: unknown,
+ * TX_PWR_CFG_4: unknown */
+ txpower = rt2x00_get_field16(eeprom,
+ EEPROM_TXPOWER_BYRATE_RATE3);
+ rt2x00_set_field32(&reg, TX_PWR_CFG_RATE7,
+ min(txpower, max_value));
+
+ rt2800_register_write(rt2x00dev, offset, reg);
+
+ /* next TX_PWR_CFG register */
+ offset += 4;
+ }
}
static void rt2800_config_retry_limit(struct rt2x00_dev *rt2x00dev,
@@ -1316,7 +1575,7 @@ int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
rt2800_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
- rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL, 0);
+ rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL, 1600);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_SYNC, 0);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
@@ -1638,6 +1897,13 @@ int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_read(rt2x00dev, TX_STA_CNT1, &reg);
rt2800_register_read(rt2x00dev, TX_STA_CNT2, &reg);
+ /*
+ * Setup leadtime for pre tbtt interrupt to 6ms
+ */
+ rt2800_register_read(rt2x00dev, INT_TIMER_CFG, &reg);
+ rt2x00_set_field32(&reg, INT_TIMER_CFG_PRE_TBTT_TIMER, 6 << 4);
+ rt2800_register_write(rt2x00dev, INT_TIMER_CFG, reg);
+
return 0;
}
EXPORT_SYMBOL_GPL(rt2800_init_registers);
@@ -2630,8 +2896,8 @@ EXPORT_SYMBOL_GPL(rt2800_probe_hw_mode);
/*
* IEEE80211 stack callback functions.
*/
-static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx,
- u32 *iv32, u16 *iv16)
+void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, u32 *iv32,
+ u16 *iv16)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
struct mac_iveiv_entry iveiv_entry;
@@ -2644,8 +2910,9 @@ static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx,
memcpy(iv16, &iveiv_entry.iv[0], sizeof(*iv16));
memcpy(iv32, &iveiv_entry.iv[4], sizeof(*iv32));
}
+EXPORT_SYMBOL_GPL(rt2800_get_tkip_seq);
-static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u32 reg;
@@ -2681,9 +2948,10 @@ static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
return 0;
}
+EXPORT_SYMBOL_GPL(rt2800_set_rts_threshold);
-static int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
- const struct ieee80211_tx_queue_params *params)
+int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
+ const struct ieee80211_tx_queue_params *params)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
struct data_queue *queue;
@@ -2748,8 +3016,9 @@ static int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
return 0;
}
+EXPORT_SYMBOL_GPL(rt2800_conf_tx);
-static u64 rt2800_get_tsf(struct ieee80211_hw *hw)
+u64 rt2800_get_tsf(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u64 tsf;
@@ -2762,12 +3031,11 @@ static u64 rt2800_get_tsf(struct ieee80211_hw *hw)
return tsf;
}
+EXPORT_SYMBOL_GPL(rt2800_get_tsf);
-static int rt2800_ampdu_action(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_ampdu_mlme_action action,
- struct ieee80211_sta *sta,
- u16 tid, u16 *ssn)
+int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
int ret = 0;
@@ -2791,27 +3059,7 @@ static int rt2800_ampdu_action(struct ieee80211_hw *hw,
return ret;
}
-
-const struct ieee80211_ops rt2800_mac80211_ops = {
- .tx = rt2x00mac_tx,
- .start = rt2x00mac_start,
- .stop = rt2x00mac_stop,
- .add_interface = rt2x00mac_add_interface,
- .remove_interface = rt2x00mac_remove_interface,
- .config = rt2x00mac_config,
- .configure_filter = rt2x00mac_configure_filter,
- .set_tim = rt2x00mac_set_tim,
- .set_key = rt2x00mac_set_key,
- .get_stats = rt2x00mac_get_stats,
- .get_tkip_seq = rt2800_get_tkip_seq,
- .set_rts_threshold = rt2800_set_rts_threshold,
- .bss_info_changed = rt2x00mac_bss_info_changed,
- .conf_tx = rt2800_conf_tx,
- .get_tsf = rt2800_get_tsf,
- .rfkill_poll = rt2x00mac_rfkill_poll,
- .ampdu_action = rt2800_ampdu_action,
-};
-EXPORT_SYMBOL_GPL(rt2800_mac80211_ops);
+EXPORT_SYMBOL_GPL(rt2800_ampdu_action);
MODULE_AUTHOR(DRV_PROJECT ", Bartlomiej Zolnierkiewicz");
MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h
index 8313dbf441a..091641e3c5e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.h
+++ b/drivers/net/wireless/rt2x00/rt2800lib.h
@@ -41,6 +41,8 @@ struct rt2800_ops {
const unsigned int offset,
const struct rt2x00_field32 field, u32 *reg);
+ int (*drv_write_firmware)(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len);
int (*drv_init_registers)(struct rt2x00_dev *rt2x00dev);
};
@@ -48,7 +50,7 @@ static inline void rt2800_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_read(rt2x00dev, offset, value);
}
@@ -57,7 +59,7 @@ static inline void rt2800_register_read_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 *value)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_read_lock(rt2x00dev, offset, value);
}
@@ -66,7 +68,7 @@ static inline void rt2800_register_write(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 value)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_write(rt2x00dev, offset, value);
}
@@ -75,7 +77,7 @@ static inline void rt2800_register_write_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 value)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_write_lock(rt2x00dev, offset, value);
}
@@ -84,7 +86,7 @@ static inline void rt2800_register_multiread(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u32 length)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_multiread(rt2x00dev, offset, value, length);
}
@@ -94,7 +96,7 @@ static inline void rt2800_register_multiwrite(struct rt2x00_dev *rt2x00dev,
const void *value,
const u32 length)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
rt2800ops->register_multiwrite(rt2x00dev, offset, value, length);
}
@@ -104,14 +106,22 @@ static inline int rt2800_regbusy_read(struct rt2x00_dev *rt2x00dev,
const struct rt2x00_field32 field,
u32 *reg)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
return rt2800ops->regbusy_read(rt2x00dev, offset, field, reg);
}
+static inline int rt2800_drv_write_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
+{
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
+
+ return rt2800ops->drv_write_firmware(rt2x00dev, data, len);
+}
+
static inline int rt2800_drv_init_registers(struct rt2x00_dev *rt2x00dev)
{
- const struct rt2800_ops *rt2800ops = rt2x00dev->priv;
+ const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
return rt2800ops->drv_init_registers(rt2x00dev);
}
@@ -120,8 +130,13 @@ void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
const u8 command, const u8 token,
const u8 arg0, const u8 arg1);
+int rt2800_check_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len);
+int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len);
+
void rt2800_write_txwi(__le32 *txwi, struct txentry_desc *txdesc);
-void rt2800_process_rxwi(struct sk_buff *skb, struct rxdone_entry_desc *txdesc);
+void rt2800_process_rxwi(struct queue_entry *entry, struct rxdone_entry_desc *txdesc);
void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc);
@@ -159,6 +174,14 @@ int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev);
int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev);
int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev);
-extern const struct ieee80211_ops rt2800_mac80211_ops;
+void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, u32 *iv32,
+ u16 *iv16);
+int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
+int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
+ const struct ieee80211_tx_queue_params *params);
+u64 rt2800_get_tsf(struct ieee80211_hw *hw);
+int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn);
#endif /* RT2800LIB_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 6f11760117d..39b3846fa34 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -31,7 +31,6 @@
Supported chipsets: RT2800E & RT2800ED.
*/
-#include <linux/crc-ccitt.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
@@ -192,82 +191,14 @@ static char *rt2800pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
return FIRMWARE_RT2860;
}
-static int rt2800pci_check_firmware(struct rt2x00_dev *rt2x00dev,
+static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
- u16 fw_crc;
- u16 crc;
-
- /*
- * Only support 8kb firmware files.
- */
- if (len != 8192)
- return FW_BAD_LENGTH;
-
- /*
- * The last 2 bytes in the firmware array are the crc checksum itself,
- * this means that we should never pass those 2 bytes to the crc
- * algorithm.
- */
- fw_crc = (data[len - 2] << 8 | data[len - 1]);
-
- /*
- * Use the crc ccitt algorithm.
- * This will return the same value as the legacy driver which
- * used bit ordering reversion on the both the firmware bytes
- * before input input as well as on the final output.
- * Obviously using crc ccitt directly is much more efficient.
- */
- crc = crc_ccitt(~0, data, len - 2);
-
- /*
- * There is a small difference between the crc-itu-t + bitrev and
- * the crc-ccitt crc calculation. In the latter method the 2 bytes
- * will be swapped, use swab16 to convert the crc to the correct
- * value.
- */
- crc = swab16(crc);
-
- return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
-}
-
-static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev,
- const u8 *data, const size_t len)
-{
- unsigned int i;
u32 reg;
- /*
- * Wait for stable hardware.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
- if (reg && reg != ~0)
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "Unstable hardware.\n");
- return -EBUSY;
- }
-
- rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002);
rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000);
/*
- * Disable DMA, will be reenabled later when enabling
- * the radio.
- */
- rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
- rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
- rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
- rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
- rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
- rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
- rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
-
- /*
* enable Host program ram write selection
*/
reg = 0;
@@ -278,34 +209,11 @@ static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev,
* Write firmware to device.
*/
rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
- data, len);
+ data, len);
rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000);
rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001);
- /*
- * Wait for device to stabilize.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
- if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY))
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "PBF system register not ready.\n");
- return -EBUSY;
- }
-
- /*
- * Disable interrupts
- */
- rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF);
-
- /*
- * Initialize BBP R/W access agent
- */
rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
@@ -422,7 +330,8 @@ static void rt2800pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
- int mask = (state == STATE_RADIO_IRQ_ON);
+ int mask = (state == STATE_RADIO_IRQ_ON) ||
+ (state == STATE_RADIO_IRQ_ON_ISR);
u32 reg;
/*
@@ -631,7 +540,9 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2800pci_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
rt2800pci_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
@@ -805,7 +716,7 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
/*
* Process the RXWI structure that is at the start of the buffer.
*/
- rt2800_process_rxwi(entry->skb, rxdesc);
+ rt2800_process_rxwi(entry, rxdesc);
/*
* Set RX IDX in register to inform hardware that we have handled
@@ -929,42 +840,74 @@ static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev)
rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
}
-static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
+static irqreturn_t rt2800pci_interrupt_thread(int irq, void *dev_instance)
{
struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg;
-
- /* Read status and ACK all interrupts */
- rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
- rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+ u32 reg = rt2x00dev->irqvalue[0];
- if (!reg)
- return IRQ_NONE;
+ /*
+ * 1 - Pre TBTT interrupt.
+ */
+ if (rt2x00_get_field32(reg, INT_SOURCE_CSR_PRE_TBTT))
+ rt2x00lib_pretbtt(rt2x00dev);
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- return IRQ_HANDLED;
+ /*
+ * 2 - Beacondone interrupt.
+ */
+ if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TBTT))
+ rt2x00lib_beacondone(rt2x00dev);
/*
- * 1 - Rx ring done interrupt.
+ * 3 - Rx ring done interrupt.
*/
if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE))
rt2x00pci_rxdone(rt2x00dev);
+ /*
+ * 4 - Tx done interrupt.
+ */
if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS))
rt2800pci_txdone(rt2x00dev);
/*
- * Current beacon was sent out, fetch the next one
+ * 5 - Auto wakeup interrupt.
*/
- if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TBTT))
- rt2x00lib_beacondone(rt2x00dev);
-
if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP))
rt2800pci_wakeup(rt2x00dev);
+ /* Enable interrupts again. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_ON_ISR);
+
return IRQ_HANDLED;
}
+static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
+{
+ struct rt2x00_dev *rt2x00dev = dev_instance;
+ u32 reg;
+
+ /* Read status and ACK all interrupts */
+ rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+ rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+ if (!reg)
+ return IRQ_NONE;
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return IRQ_HANDLED;
+
+ /* Store irqvalue for use in the interrupt thread. */
+ rt2x00dev->irqvalue[0] = reg;
+
+ /* Disable interrupts, will be enabled again in the interrupt thread. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_OFF_ISR);
+
+
+ return IRQ_WAKE_THREAD;
+}
+
/*
* Device probe functions.
*/
@@ -983,26 +926,10 @@ static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
return rt2800_validate_eeprom(rt2x00dev);
}
-static const struct rt2800_ops rt2800pci_rt2800_ops = {
- .register_read = rt2x00pci_register_read,
- .register_read_lock = rt2x00pci_register_read, /* same for PCI */
- .register_write = rt2x00pci_register_write,
- .register_write_lock = rt2x00pci_register_write, /* same for PCI */
-
- .register_multiread = rt2x00pci_register_multiread,
- .register_multiwrite = rt2x00pci_register_multiwrite,
-
- .regbusy_read = rt2x00pci_regbusy_read,
-
- .drv_init_registers = rt2800pci_init_registers,
-};
-
static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
- rt2x00dev->priv = (void *)&rt2800pci_rt2800_ops;
-
/*
* Allocate eeprom data.
*/
@@ -1029,6 +956,12 @@ static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL, &rt2x00dev->flags);
/*
+ * This device has a pre tbtt interrupt and thus fetches
+ * a new beacon directly prior to transmission.
+ */
+ __set_bit(DRIVER_SUPPORT_PRE_TBTT_INTERRUPT, &rt2x00dev->flags);
+
+ /*
* This device requires firmware.
*/
if (!rt2x00_is_soc(rt2x00dev))
@@ -1037,6 +970,7 @@ static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags);
if (!modparam_nohwcrypt)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -1046,12 +980,46 @@ static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
return 0;
}
+static const struct ieee80211_ops rt2800pci_mac80211_ops = {
+ .tx = rt2x00mac_tx,
+ .start = rt2x00mac_start,
+ .stop = rt2x00mac_stop,
+ .add_interface = rt2x00mac_add_interface,
+ .remove_interface = rt2x00mac_remove_interface,
+ .config = rt2x00mac_config,
+ .configure_filter = rt2x00mac_configure_filter,
+ .set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
+ .get_stats = rt2x00mac_get_stats,
+ .get_tkip_seq = rt2800_get_tkip_seq,
+ .set_rts_threshold = rt2800_set_rts_threshold,
+ .bss_info_changed = rt2x00mac_bss_info_changed,
+ .conf_tx = rt2800_conf_tx,
+ .get_tsf = rt2800_get_tsf,
+ .rfkill_poll = rt2x00mac_rfkill_poll,
+ .ampdu_action = rt2800_ampdu_action,
+};
+
+static const struct rt2800_ops rt2800pci_rt2800_ops = {
+ .register_read = rt2x00pci_register_read,
+ .register_read_lock = rt2x00pci_register_read, /* same for PCI */
+ .register_write = rt2x00pci_register_write,
+ .register_write_lock = rt2x00pci_register_write, /* same for PCI */
+ .register_multiread = rt2x00pci_register_multiread,
+ .register_multiwrite = rt2x00pci_register_multiwrite,
+ .regbusy_read = rt2x00pci_regbusy_read,
+ .drv_write_firmware = rt2800pci_write_firmware,
+ .drv_init_registers = rt2800pci_init_registers,
+};
+
static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
.irq_handler = rt2800pci_interrupt,
+ .irq_handler_thread = rt2800pci_interrupt_thread,
.probe_hw = rt2800pci_probe_hw,
.get_firmware_name = rt2800pci_get_firmware_name,
- .check_firmware = rt2800pci_check_firmware,
- .load_firmware = rt2800pci_load_firmware,
+ .check_firmware = rt2800_check_firmware,
+ .load_firmware = rt2800_load_firmware,
.initialize = rt2x00pci_initialize,
.uninitialize = rt2x00pci_uninitialize,
.get_entry_state = rt2800pci_get_entry_state,
@@ -1109,7 +1077,8 @@ static const struct rt2x00_ops rt2800pci_ops = {
.tx = &rt2800pci_queue_tx,
.bcn = &rt2800pci_queue_bcn,
.lib = &rt2800pci_rt2x00_ops,
- .hw = &rt2800_mac80211_ops,
+ .drv = &rt2800pci_rt2800_ops,
+ .hw = &rt2800pci_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2800_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 4f85f7b4244..5a2dfe87c6b 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -28,7 +28,6 @@
Supported chipsets: RT2800U.
*/
-#include <linux/crc-ccitt.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
@@ -57,84 +56,10 @@ static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
return FIRMWARE_RT2870;
}
-static bool rt2800usb_check_crc(const u8 *data, const size_t len)
-{
- u16 fw_crc;
- u16 crc;
-
- /*
- * The last 2 bytes in the firmware array are the crc checksum itself,
- * this means that we should never pass those 2 bytes to the crc
- * algorithm.
- */
- fw_crc = (data[len - 2] << 8 | data[len - 1]);
-
- /*
- * Use the crc ccitt algorithm.
- * This will return the same value as the legacy driver which
- * used bit ordering reversion on the both the firmware bytes
- * before input input as well as on the final output.
- * Obviously using crc ccitt directly is much more efficient.
- */
- crc = crc_ccitt(~0, data, len - 2);
-
- /*
- * There is a small difference between the crc-itu-t + bitrev and
- * the crc-ccitt crc calculation. In the latter method the 2 bytes
- * will be swapped, use swab16 to convert the crc to the correct
- * value.
- */
- crc = swab16(crc);
-
- return fw_crc == crc;
-}
-
-static int rt2800usb_check_firmware(struct rt2x00_dev *rt2x00dev,
+static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
- size_t offset = 0;
-
- /*
- * Firmware files:
- * There are 2 variations of the rt2870 firmware.
- * a) size: 4kb
- * b) size: 8kb
- * Note that (b) contains 2 separate firmware blobs of 4k
- * within the file. The first blob is the same firmware as (a),
- * but the second blob is for the additional chipsets.
- */
- if (len != 4096 && len != 8192)
- return FW_BAD_LENGTH;
-
- /*
- * Check if we need the upper 4kb firmware data or not.
- */
- if ((len == 4096) &&
- !rt2x00_rt(rt2x00dev, RT2860) &&
- !rt2x00_rt(rt2x00dev, RT2872) &&
- !rt2x00_rt(rt2x00dev, RT3070))
- return FW_BAD_VERSION;
-
- /*
- * 8kb firmware files must be checked as if it were
- * 2 separate firmware files.
- */
- while (offset < len) {
- if (!rt2800usb_check_crc(data + offset, 4096))
- return FW_BAD_CRC;
-
- offset += 4096;
- }
-
- return FW_OK;
-}
-
-static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
- const u8 *data, const size_t len)
-{
- unsigned int i;
int status;
- u32 reg;
u32 offset;
u32 length;
@@ -152,21 +77,6 @@ static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
}
/*
- * Wait for stable hardware.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
- if (reg && reg != ~0)
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "Unstable hardware.\n");
- return -EBUSY;
- }
-
- /*
* Write firmware to device.
*/
rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
@@ -203,28 +113,6 @@ static int rt2800usb_load_firmware(struct rt2x00_dev *rt2x00dev,
udelay(10);
}
- /*
- * Wait for device to stabilize.
- */
- for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
- if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY))
- break;
- msleep(1);
- }
-
- if (i == REGISTER_BUSY_COUNT) {
- ERROR(rt2x00dev, "PBF system register not ready.\n");
- return -EBUSY;
- }
-
- /*
- * Initialize firmware.
- */
- rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
- rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
- msleep(1);
-
return 0;
}
@@ -406,7 +294,9 @@ static int rt2800usb_set_device_state(struct rt2x00_dev *rt2x00dev,
rt2800usb_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
/* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
@@ -563,7 +453,7 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
/*
* Process the RXWI structure.
*/
- rt2800_process_rxwi(entry->skb, rxdesc);
+ rt2800_process_rxwi(entry, rxdesc);
}
/*
@@ -580,26 +470,10 @@ static int rt2800usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
return rt2800_validate_eeprom(rt2x00dev);
}
-static const struct rt2800_ops rt2800usb_rt2800_ops = {
- .register_read = rt2x00usb_register_read,
- .register_read_lock = rt2x00usb_register_read_lock,
- .register_write = rt2x00usb_register_write,
- .register_write_lock = rt2x00usb_register_write_lock,
-
- .register_multiread = rt2x00usb_register_multiread,
- .register_multiwrite = rt2x00usb_register_multiwrite,
-
- .regbusy_read = rt2x00usb_regbusy_read,
-
- .drv_init_registers = rt2800usb_init_registers,
-};
-
static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
- rt2x00dev->priv = (void *)&rt2800usb_rt2800_ops;
-
/*
* Allocate eeprom data.
*/
@@ -632,6 +506,8 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags);
if (!modparam_nohwcrypt)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -641,11 +517,45 @@ static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
return 0;
}
+static const struct ieee80211_ops rt2800usb_mac80211_ops = {
+ .tx = rt2x00mac_tx,
+ .start = rt2x00mac_start,
+ .stop = rt2x00mac_stop,
+ .add_interface = rt2x00mac_add_interface,
+ .remove_interface = rt2x00mac_remove_interface,
+ .config = rt2x00mac_config,
+ .configure_filter = rt2x00mac_configure_filter,
+ .set_tim = rt2x00mac_set_tim,
+ .set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
+ .get_stats = rt2x00mac_get_stats,
+ .get_tkip_seq = rt2800_get_tkip_seq,
+ .set_rts_threshold = rt2800_set_rts_threshold,
+ .bss_info_changed = rt2x00mac_bss_info_changed,
+ .conf_tx = rt2800_conf_tx,
+ .get_tsf = rt2800_get_tsf,
+ .rfkill_poll = rt2x00mac_rfkill_poll,
+ .ampdu_action = rt2800_ampdu_action,
+};
+
+static const struct rt2800_ops rt2800usb_rt2800_ops = {
+ .register_read = rt2x00usb_register_read,
+ .register_read_lock = rt2x00usb_register_read_lock,
+ .register_write = rt2x00usb_register_write,
+ .register_write_lock = rt2x00usb_register_write_lock,
+ .register_multiread = rt2x00usb_register_multiread,
+ .register_multiwrite = rt2x00usb_register_multiwrite,
+ .regbusy_read = rt2x00usb_regbusy_read,
+ .drv_write_firmware = rt2800usb_write_firmware,
+ .drv_init_registers = rt2800usb_init_registers,
+};
+
static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
.probe_hw = rt2800usb_probe_hw,
.get_firmware_name = rt2800usb_get_firmware_name,
- .check_firmware = rt2800usb_check_firmware,
- .load_firmware = rt2800usb_load_firmware,
+ .check_firmware = rt2800_check_firmware,
+ .load_firmware = rt2800_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
@@ -654,6 +564,7 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
.link_stats = rt2800_link_stats,
.reset_tuner = rt2800_reset_tuner,
.link_tuner = rt2800_link_tuner,
+ .watchdog = rt2x00usb_watchdog,
.write_tx_desc = rt2800usb_write_tx_desc,
.write_tx_data = rt2800usb_write_tx_data,
.write_beacon = rt2800_write_beacon,
@@ -703,7 +614,8 @@ static const struct rt2x00_ops rt2800usb_ops = {
.tx = &rt2800usb_queue_tx,
.bcn = &rt2800usb_queue_bcn,
.lib = &rt2800usb_rt2x00_ops,
- .hw = &rt2800_mac80211_ops,
+ .drv = &rt2800usb_rt2800_ops,
+ .hw = &rt2800usb_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2800_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 788b0e452cc..c21af38cc5a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -332,6 +332,11 @@ struct link {
* Work structure for scheduling periodic link tuning.
*/
struct delayed_work work;
+
+ /*
+ * Work structure for scheduling periodic watchdog monitoring.
+ */
+ struct delayed_work watchdog_work;
};
/*
@@ -510,6 +515,11 @@ struct rt2x00lib_ops {
irq_handler_t irq_handler;
/*
+ * Threaded Interrupt handlers.
+ */
+ irq_handler_t irq_handler_thread;
+
+ /*
* Device init handlers.
*/
int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
@@ -543,6 +553,7 @@ struct rt2x00lib_ops {
struct link_qual *qual);
void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, const u32 count);
+ void (*watchdog) (struct rt2x00_dev *rt2x00dev);
/*
* TX control handlers
@@ -610,6 +621,7 @@ struct rt2x00_ops {
const struct data_queue_desc *bcn;
const struct data_queue_desc *atim;
const struct rt2x00lib_ops *lib;
+ const void *drv;
const struct ieee80211_ops *hw;
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
const struct rt2x00debug *debugfs;
@@ -628,6 +640,7 @@ enum rt2x00_flags {
DEVICE_STATE_INITIALIZED,
DEVICE_STATE_STARTED,
DEVICE_STATE_ENABLED_RADIO,
+ DEVICE_STATE_SCANNING,
/*
* Driver requirements
@@ -646,6 +659,9 @@ enum rt2x00_flags {
CONFIG_SUPPORT_HW_CRYPTO,
DRIVER_SUPPORT_CONTROL_FILTERS,
DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL,
+ DRIVER_SUPPORT_PRE_TBTT_INTERRUPT,
+ DRIVER_SUPPORT_LINK_TUNING,
+ DRIVER_SUPPORT_WATCHDOG,
/*
* Driver configuration
@@ -655,7 +671,6 @@ enum rt2x00_flags {
CONFIG_EXTERNAL_LNA_A,
CONFIG_EXTERNAL_LNA_BG,
CONFIG_DOUBLE_ANTENNA,
- CONFIG_DISABLE_LINK_TUNING,
CONFIG_CHANNEL_HT40,
};
@@ -863,9 +878,10 @@ struct rt2x00_dev {
const struct firmware *fw;
/*
- * Driver specific data.
+ * Interrupt values, stored between interrupt service routine
+ * and interrupt thread routine.
*/
- void *priv;
+ u32 irqvalue[2];
};
/*
@@ -1052,6 +1068,7 @@ static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
* Interrupt context handlers.
*/
void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev);
void rt2x00lib_txdone(struct queue_entry *entry,
struct txdone_entry_desc *txdesc);
void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
@@ -1081,6 +1098,8 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
#else
#define rt2x00mac_set_key NULL
#endif /* CONFIG_RT2X00_LIB_CRYPTO */
+void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw);
+void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw);
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats);
void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 8dbd634dae2..953dc4f2c6a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -41,10 +41,12 @@ void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
switch (type) {
case NL80211_IFTYPE_ADHOC:
+ conf.sync = TSF_SYNC_ADHOC;
+ break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_WDS:
- conf.sync = TSF_SYNC_BEACON;
+ conf.sync = TSF_SYNC_AP_NONE;
break;
case NL80211_IFTYPE_STATION:
conf.sync = TSF_SYNC_INFRA;
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 12ee7bdedd0..f59b9f7226a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -70,6 +70,11 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
/*
+ * Start watchdog monitoring.
+ */
+ rt2x00link_start_watchdog(rt2x00dev);
+
+ /*
* Start the TX queues.
*/
ieee80211_wake_queues(rt2x00dev->hw);
@@ -89,6 +94,11 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
rt2x00queue_stop_queues(rt2x00dev);
/*
+ * Stop watchdog monitoring.
+ */
+ rt2x00link_stop_watchdog(rt2x00dev);
+
+ /*
* Disable RX.
*/
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
@@ -168,10 +178,32 @@ static void rt2x00lib_intf_scheduled(struct work_struct *work)
/*
* Interrupt context handlers.
*/
-static void rt2x00lib_beacondone_iter(void *data, u8 *mac,
- struct ieee80211_vif *vif)
+static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac,
+ struct ieee80211_vif *vif)
{
- struct rt2x00_intf *intf = vif_to_intf(vif);
+ struct rt2x00_dev *rt2x00dev = data;
+ struct sk_buff *skb;
+
+ /*
+ * Only AP mode interfaces do broad- and multicast buffering
+ */
+ if (vif->type != NL80211_IFTYPE_AP)
+ return;
+
+ /*
+ * Send out buffered broad- and multicast frames
+ */
+ skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
+ while (skb) {
+ rt2x00mac_tx(rt2x00dev->hw, skb);
+ skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
+ }
+}
+
+static void rt2x00lib_beaconupdate_iter(void *data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct rt2x00_dev *rt2x00dev = data;
if (vif->type != NL80211_IFTYPE_AP &&
vif->type != NL80211_IFTYPE_ADHOC &&
@@ -179,9 +211,7 @@ static void rt2x00lib_beacondone_iter(void *data, u8 *mac,
vif->type != NL80211_IFTYPE_WDS)
return;
- spin_lock(&intf->lock);
- intf->delayed_flags |= DELAYED_UPDATE_BEACON;
- spin_unlock(&intf->lock);
+ rt2x00queue_update_beacon(rt2x00dev, vif, true);
}
void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
@@ -189,14 +219,37 @@ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
- ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
- rt2x00lib_beacondone_iter,
- rt2x00dev);
+ /* send buffered bc/mc frames out for every bssid */
+ ieee80211_iterate_active_interfaces(rt2x00dev->hw,
+ rt2x00lib_bc_buffer_iter,
+ rt2x00dev);
+ /*
+ * Devices with pre tbtt interrupt don't need to update the beacon
+ * here as they will fetch the next beacon directly prior to
+ * transmission.
+ */
+ if (test_bit(DRIVER_SUPPORT_PRE_TBTT_INTERRUPT, &rt2x00dev->flags))
+ return;
- ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work);
+ /* fetch next beacon */
+ ieee80211_iterate_active_interfaces(rt2x00dev->hw,
+ rt2x00lib_beaconupdate_iter,
+ rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00lib_beacondone);
+void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev)
+{
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return;
+
+ /* fetch next beacon */
+ ieee80211_iterate_active_interfaces(rt2x00dev->hw,
+ rt2x00lib_beaconupdate_iter,
+ rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_pretbtt);
+
void rt2x00lib_txdone(struct queue_entry *entry,
struct txdone_entry_desc *txdesc)
{
@@ -330,9 +383,17 @@ void rt2x00lib_txdone(struct queue_entry *entry,
* send the status report back.
*/
if (!(skbdesc_flags & SKBDESC_NOT_MAC80211))
- ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb);
+ /*
+ * Only PCI and SOC devices process the tx status in process
+ * context. Hence use ieee80211_tx_status for PCI and SOC
+ * devices and stick to ieee80211_tx_status_irqsafe for USB.
+ */
+ if (rt2x00_is_usb(rt2x00dev))
+ ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb);
+ else
+ ieee80211_tx_status(rt2x00dev->hw, entry->skb);
else
- dev_kfree_skb_irq(entry->skb);
+ dev_kfree_skb_any(entry->skb);
/*
* Make this entry available for reuse.
@@ -479,7 +540,16 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
*/
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb);
memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status));
- ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb);
+
+ /*
+ * Currently only PCI and SOC devices handle rx interrupts in process
+ * context. Hence, use ieee80211_rx_irqsafe for USB and ieee80211_rx_ni
+ * for PCI and SOC devices.
+ */
+ if (rt2x00_is_usb(rt2x00dev))
+ ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb);
+ else
+ ieee80211_rx_ni(rt2x00dev->hw, entry->skb);
/*
* Replace the skb with the freshly allocated one.
diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index ed27de1de57..dc5c6574aaf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -30,6 +30,7 @@
/*
* Interval defines
*/
+#define WATCHDOG_INTERVAL round_jiffies_relative(HZ)
#define LINK_TUNE_INTERVAL round_jiffies_relative(HZ)
/*
@@ -257,11 +258,30 @@ void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
/**
- * rt2x00link_register - Initialize link tuning functionality
+ * rt2x00link_start_watchdog - Start periodic watchdog monitoring
* @rt2x00dev: Pointer to &struct rt2x00_dev.
*
- * Initialize work structure and all link tuning related
- * parameters. This will not start the link tuning process itself.
+ * This start the watchdog periodic work, this work will
+ *be executed periodically until &rt2x00link_stop_watchdog has
+ * been called.
+ */
+void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * After this function completed the watchdog monitoring will not
+ * be running until &rt2x00link_start_watchdog is called.
+ */
+void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev);
+
+/**
+ * rt2x00link_register - Initialize link tuning & watchdog functionality
+ * @rt2x00dev: Pointer to &struct rt2x00_dev.
+ *
+ * Initialize work structure and all link tuning and watchdog related
+ * parameters. This will not start the periodic work itself.
*/
void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index 2f8136cab7d..666cef3f847 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -278,6 +278,15 @@ void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev)
if (!rt2x00dev->intf_sta_count)
return;
+ /**
+ * While scanning, link tuning is disabled. By default
+ * the most sensitive settings will be used to make sure
+ * that all beacons and probe responses will be recieved
+ * during the scan.
+ */
+ if (test_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags))
+ return;
+
rt2x00link_reset_tuner(rt2x00dev, false);
if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
@@ -293,6 +302,7 @@ void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev)
void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
{
struct link_qual *qual = &rt2x00dev->link.qual;
+ u8 vgc_level = qual->vgc_level_reg;
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
@@ -309,6 +319,13 @@ void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
memset(qual, 0, sizeof(*qual));
/*
+ * Restore the VGC level as stored in the registers,
+ * the driver can use this to determine if the register
+ * must be updated during reset or not.
+ */
+ qual->vgc_level_reg = vgc_level;
+
+ /*
* Reset the link tuner.
*/
rt2x00dev->ops->lib->reset_tuner(rt2x00dev, qual);
@@ -338,7 +355,8 @@ static void rt2x00link_tuner(struct work_struct *work)
* When the radio is shutting down we should
* immediately cease all link tuning.
*/
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) ||
+ test_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags))
return;
/*
@@ -359,10 +377,11 @@ static void rt2x00link_tuner(struct work_struct *work)
qual->rssi = link->avg_rssi.avg;
/*
- * Only perform the link tuning when Link tuning
- * has been enabled (This could have been disabled from the EEPROM).
+ * Check if link tuning is supported by the hardware, some hardware
+ * do not support link tuning at all, while other devices can disable
+ * the feature from the EEPROM.
*/
- if (!test_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags))
+ if (test_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags))
rt2x00dev->ops->lib->link_tuner(rt2x00dev, qual, link->count);
/*
@@ -388,7 +407,45 @@ static void rt2x00link_tuner(struct work_struct *work)
&link->work, LINK_TUNE_INTERVAL);
}
+void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev)
+{
+ struct link *link = &rt2x00dev->link;
+
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
+ !test_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags))
+ return;
+
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->watchdog_work, WATCHDOG_INTERVAL);
+}
+
+void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev)
+{
+ cancel_delayed_work_sync(&rt2x00dev->link.watchdog_work);
+}
+
+static void rt2x00link_watchdog(struct work_struct *work)
+{
+ struct rt2x00_dev *rt2x00dev =
+ container_of(work, struct rt2x00_dev, link.watchdog_work.work);
+ struct link *link = &rt2x00dev->link;
+
+ /*
+ * When the radio is shutting down we should
+ * immediately cease the watchdog monitoring.
+ */
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return;
+
+ rt2x00dev->ops->lib->watchdog(rt2x00dev);
+
+ if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->watchdog_work, WATCHDOG_INTERVAL);
+}
+
void rt2x00link_register(struct rt2x00_dev *rt2x00dev)
{
+ INIT_DELAYED_WORK(&rt2x00dev->link.watchdog_work, rt2x00link_watchdog);
INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00link_tuner);
}
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 3b838c0bf59..4d8d2320c9f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -347,9 +347,11 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
/*
* Some configuration parameters (e.g. channel and antenna values) can
* only be set when the radio is enabled, but do require the RX to
- * be off.
+ * be off. During this period we should keep link tuning enabled,
+ * if for any reason the link tuner must be reset, this will be
+ * handled by rt2x00lib_config().
*/
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
/*
* When we've just turned on the radio, we want to reprogram
@@ -367,7 +369,7 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
rt2x00lib_config_antenna(rt2x00dev, rt2x00dev->default_ant);
/* Turn RX back on */
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
return 0;
}
@@ -431,12 +433,36 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter);
+static void rt2x00mac_set_tim_iter(void *data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct rt2x00_intf *intf = vif_to_intf(vif);
+
+ if (vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_ADHOC &&
+ vif->type != NL80211_IFTYPE_MESH_POINT &&
+ vif->type != NL80211_IFTYPE_WDS)
+ return;
+
+ spin_lock(&intf->lock);
+ intf->delayed_flags |= DELAYED_UPDATE_BEACON;
+ spin_unlock(&intf->lock);
+}
+
int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
bool set)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- rt2x00lib_beacondone(rt2x00dev);
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return 0;
+
+ ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
+ rt2x00mac_set_tim_iter,
+ rt2x00dev);
+
+ /* queue work to upodate the beacon template */
+ ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work);
return 0;
}
EXPORT_SYMBOL_GPL(rt2x00mac_set_tim);
@@ -540,6 +566,22 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
EXPORT_SYMBOL_GPL(rt2x00mac_set_key);
#endif /* CONFIG_RT2X00_LIB_CRYPTO */
+void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ __set_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
+ rt2x00link_stop_tuner(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_start);
+
+void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ __clear_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
+ rt2x00link_start_tuner(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_complete);
+
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index fc9da835878..19b262e1ddb 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -153,8 +153,10 @@ int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
/*
* Register interrupt handler.
*/
- status = request_irq(rt2x00dev->irq, rt2x00dev->ops->lib->irq_handler,
- IRQF_SHARED, rt2x00dev->name, rt2x00dev);
+ status = request_threaded_irq(rt2x00dev->irq,
+ rt2x00dev->ops->lib->irq_handler,
+ rt2x00dev->ops->lib->irq_handler_thread,
+ IRQF_SHARED, rt2x00dev->name, rt2x00dev);
if (status) {
ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n",
rt2x00dev->irq, status);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5097fe0f9f5..a3401d30105 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -688,9 +688,11 @@ void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index)
if (index == Q_INDEX) {
queue->length++;
+ queue->last_index = jiffies;
} else if (index == Q_INDEX_DONE) {
queue->length--;
queue->count++;
+ queue->last_index_done = jiffies;
}
spin_unlock_irqrestore(&queue->lock, irqflags);
@@ -704,6 +706,8 @@ static void rt2x00queue_reset(struct data_queue *queue)
queue->count = 0;
queue->length = 0;
+ queue->last_index = jiffies;
+ queue->last_index_done = jiffies;
memset(queue->index, 0, sizeof(queue->index));
spin_unlock_irqrestore(&queue->lock, irqflags);
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index bd54f55a8cb..191e7775a9c 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -446,6 +446,8 @@ struct data_queue {
enum data_queue_qid qid;
spinlock_t lock;
+ unsigned long last_index;
+ unsigned long last_index_done;
unsigned int count;
unsigned short limit;
unsigned short threshold;
@@ -599,6 +601,15 @@ static inline int rt2x00queue_threshold(struct data_queue *queue)
}
/**
+ * rt2x00queue_timeout - Check if a timeout occured for this queue
+ * @queue: Queue to check.
+ */
+static inline int rt2x00queue_timeout(struct data_queue *queue)
+{
+ return time_after(queue->last_index, queue->last_index_done + (HZ / 10));
+}
+
+/**
* _rt2x00_desc_read - Read a word from the hardware descriptor.
* @desc: Base descriptor address
* @word: Word index from where the descriptor should be read.
diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h
index b9fe94873ee..cef94621cef 100644
--- a/drivers/net/wireless/rt2x00/rt2x00reg.h
+++ b/drivers/net/wireless/rt2x00/rt2x00reg.h
@@ -63,7 +63,8 @@ enum led_mode {
enum tsf_sync {
TSF_SYNC_NONE = 0,
TSF_SYNC_INFRA = 1,
- TSF_SYNC_BEACON = 2,
+ TSF_SYNC_ADHOC = 2,
+ TSF_SYNC_AP_NONE = 3,
};
/*
@@ -88,6 +89,8 @@ enum dev_state {
STATE_RADIO_RX_OFF_LINK,
STATE_RADIO_IRQ_ON,
STATE_RADIO_IRQ_OFF,
+ STATE_RADIO_IRQ_ON_ISR,
+ STATE_RADIO_IRQ_OFF_ISR,
};
/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index a22837c560f..ff3a36622d1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -292,6 +292,56 @@ void rt2x00usb_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
}
EXPORT_SYMBOL_GPL(rt2x00usb_kill_tx_queue);
+static void rt2x00usb_watchdog_reset_tx(struct data_queue *queue)
+{
+ struct queue_entry_priv_usb *entry_priv;
+ unsigned short threshold = queue->threshold;
+
+ WARNING(queue->rt2x00dev, "TX queue %d timed out, invoke reset", queue->qid);
+
+ /*
+ * Temporarily disable the TX queue, this will force mac80211
+ * to use the other queues until this queue has been restored.
+ *
+ * Set the queue threshold to the queue limit. This prevents the
+ * queue from being enabled during the txdone handler.
+ */
+ queue->threshold = queue->limit;
+ ieee80211_stop_queue(queue->rt2x00dev->hw, queue->qid);
+
+ /*
+ * Reset all currently uploaded TX frames.
+ */
+ while (!rt2x00queue_empty(queue)) {
+ entry_priv = rt2x00queue_get_entry(queue, Q_INDEX_DONE)->priv_data;
+ usb_kill_urb(entry_priv->urb);
+
+ /*
+ * We need a short delay here to wait for
+ * the URB to be canceled and invoked the tx_done handler.
+ */
+ udelay(200);
+ }
+
+ /*
+ * The queue has been reset, and mac80211 is allowed to use the
+ * queue again.
+ */
+ queue->threshold = threshold;
+ ieee80211_wake_queue(queue->rt2x00dev->hw, queue->qid);
+}
+
+void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev)
+{
+ struct data_queue *queue;
+
+ tx_queue_for_each(rt2x00dev, queue) {
+ if (rt2x00queue_timeout(queue))
+ rt2x00usb_watchdog_reset_tx(queue);
+ }
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_watchdog);
+
/*
* RX data handlers.
*/
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h
index 2b7a1889e72..d3d3ddc4087 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.h
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.h
@@ -399,6 +399,16 @@ void rt2x00usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
void rt2x00usb_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
const enum data_queue_qid qid);
+/**
+ * rt2x00usb_watchdog - Watchdog for USB communication
+ * @rt2x00dev: Pointer to &struct rt2x00_dev
+ *
+ * Check the health of the USB communication and determine
+ * if timeouts have occured. If this is the case, this function
+ * will reset all communication to restore functionality again.
+ */
+void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev);
+
/*
* Device initialization handlers.
*/
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 0123fbc22ca..e539c6cb636 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1622,7 +1622,8 @@ static void rt61pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
static void rt61pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
- int mask = (state == STATE_RADIO_IRQ_OFF);
+ int mask = (state == STATE_RADIO_IRQ_OFF) ||
+ (state == STATE_RADIO_IRQ_OFF_ISR);
u32 reg;
/*
@@ -1739,7 +1740,9 @@ static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev,
rt61pci_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
rt61pci_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
@@ -2147,27 +2150,11 @@ static void rt61pci_wakeup(struct rt2x00_dev *rt2x00dev)
rt61pci_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
}
-static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
+static irqreturn_t rt61pci_interrupt_thread(int irq, void *dev_instance)
{
struct rt2x00_dev *rt2x00dev = dev_instance;
- u32 reg_mcu;
- u32 reg;
-
- /*
- * Get the interrupt sources & saved to local variable.
- * Write register value back to clear pending interrupts.
- */
- rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg_mcu);
- rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg_mcu);
-
- rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
- rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
-
- if (!reg && !reg_mcu)
- return IRQ_NONE;
-
- if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- return IRQ_HANDLED;
+ u32 reg = rt2x00dev->irqvalue[0];
+ u32 reg_mcu = rt2x00dev->irqvalue[1];
/*
* Handle interrupts, walk through all bits
@@ -2206,9 +2193,45 @@ static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
if (rt2x00_get_field32(reg, INT_SOURCE_CSR_BEACON_DONE))
rt2x00lib_beacondone(rt2x00dev);
+ /* Enable interrupts again. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_ON_ISR);
return IRQ_HANDLED;
}
+
+static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
+{
+ struct rt2x00_dev *rt2x00dev = dev_instance;
+ u32 reg_mcu;
+ u32 reg;
+
+ /*
+ * Get the interrupt sources & saved to local variable.
+ * Write register value back to clear pending interrupts.
+ */
+ rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg_mcu);
+ rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg_mcu);
+
+ rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+ rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+ if (!reg && !reg_mcu)
+ return IRQ_NONE;
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return IRQ_HANDLED;
+
+ /* Store irqvalues for use in the interrupt thread. */
+ rt2x00dev->irqvalue[0] = reg;
+ rt2x00dev->irqvalue[1] = reg_mcu;
+
+ /* Disable interrupts, will be enabled again in the interrupt thread. */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+ STATE_RADIO_IRQ_OFF_ISR);
+ return IRQ_WAKE_THREAD;
+}
+
/*
* Device probe functions.
*/
@@ -2690,6 +2713,7 @@ static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags);
if (!modparam_nohwcrypt)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -2781,8 +2805,9 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = {
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
- .set_tim = rt2x00mac_set_tim,
.set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt61pci_conf_tx,
@@ -2792,6 +2817,7 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = {
static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
.irq_handler = rt61pci_interrupt,
+ .irq_handler_thread = rt61pci_interrupt_thread,
.probe_hw = rt61pci_probe_hw,
.get_firmware_name = rt61pci_get_firmware_name,
.check_firmware = rt61pci_check_firmware,
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 286dd97e51d..aa9de18fd41 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1400,7 +1400,9 @@ static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
rt73usb_toggle_rx(rt2x00dev, state);
break;
case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_ON_ISR:
case STATE_RADIO_IRQ_OFF:
+ case STATE_RADIO_IRQ_OFF_ISR:
/* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
@@ -2135,6 +2137,8 @@ static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
__set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
if (!modparam_nohwcrypt)
__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_LINK_TUNING, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -2228,6 +2232,8 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
.configure_filter = rt2x00mac_configure_filter,
.set_tim = rt2x00mac_set_tim,
.set_key = rt2x00mac_set_key,
+ .sw_scan_start = rt2x00mac_sw_scan_start,
+ .sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt73usb_conf_tx,
@@ -2248,6 +2254,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
.link_stats = rt73usb_link_stats,
.reset_tuner = rt73usb_reset_tuner,
.link_tuner = rt73usb_link_tuner,
+ .watchdog = rt2x00usb_watchdog,
.write_tx_desc = rt73usb_write_tx_desc,
.write_beacon = rt73usb_write_beacon,
.get_tx_data_len = rt73usb_get_tx_data_len,