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path: root/drivers/net/wireless/rt2x00/rt73usb.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt73usb.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt73usb.c196
1 files changed, 135 insertions, 61 deletions
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 96a8d69f879..6521dac7ec4 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1,5 +1,5 @@
/*
- Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
@@ -186,6 +186,18 @@ static const struct rt2x00debug rt73usb_rt2x00debug = {
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+static int rt73usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
+{
+ u32 reg;
+
+ rt2x00usb_register_read(rt2x00dev, MAC_CSR13, &reg);
+ return rt2x00_get_field32(reg, MAC_CSR13_BIT7);
+}
+#else
+#define rt73usb_rfkill_poll NULL
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
#ifdef CONFIG_RT2X00_LIB_LEDS
static void rt73usb_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
@@ -844,6 +856,44 @@ static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
}
+static void rt73usb_config_ps(struct rt2x00_dev *rt2x00dev,
+ struct rt2x00lib_conf *libconf)
+{
+ enum dev_state state =
+ (libconf->conf->flags & IEEE80211_CONF_PS) ?
+ STATE_SLEEP : STATE_AWAKE;
+ u32 reg;
+
+ if (state == STATE_SLEEP) {
+ rt2x00usb_register_read(rt2x00dev, MAC_CSR11, &reg);
+ rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN,
+ libconf->conf->beacon_int - 10);
+ rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP,
+ libconf->conf->listen_interval - 1);
+ rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 5);
+
+ /* We must first disable autowake before it can be enabled */
+ rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
+ rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
+
+ rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 1);
+ rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
+
+ rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
+ USB_MODE_SLEEP, REGISTER_TIMEOUT);
+ } else {
+ rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
+ USB_MODE_WAKEUP, REGISTER_TIMEOUT);
+
+ rt2x00usb_register_read(rt2x00dev, MAC_CSR11, &reg);
+ rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN, 0);
+ rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP, 0);
+ rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
+ rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 0);
+ rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
+ }
+}
+
static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags)
@@ -861,6 +911,8 @@ static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
rt73usb_config_retry_limit(rt2x00dev, libconf);
if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL)
rt73usb_config_duration(rt2x00dev, libconf);
+ if (flags & IEEE80211_CONF_CHANGE_PS)
+ rt73usb_config_ps(rt2x00dev, libconf);
}
/*
@@ -884,21 +936,28 @@ static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev,
qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
}
-static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
+static inline void rt73usb_set_vgc(struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual, u8 vgc_level)
+{
+ if (qual->vgc_level != vgc_level) {
+ rt73usb_bbp_write(rt2x00dev, 17, vgc_level);
+ qual->vgc_level = vgc_level;
+ qual->vgc_level_reg = vgc_level;
+ }
+}
+
+static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual)
{
- rt73usb_bbp_write(rt2x00dev, 17, 0x20);
- rt2x00dev->link.vgc_level = 0x20;
+ rt73usb_set_vgc(rt2x00dev, qual, 0x20);
}
-static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
+static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev,
+ struct link_qual *qual, const u32 count)
{
- int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
- u8 r17;
u8 up_bound;
u8 low_bound;
- rt73usb_bbp_read(rt2x00dev, 17, &r17);
-
/*
* Determine r17 bounds.
*/
@@ -911,10 +970,10 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
up_bound += 0x10;
}
} else {
- if (rssi > -82) {
+ if (qual->rssi > -82) {
low_bound = 0x1c;
up_bound = 0x40;
- } else if (rssi > -84) {
+ } else if (qual->rssi > -84) {
low_bound = 0x1c;
up_bound = 0x20;
} else {
@@ -938,37 +997,32 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
/*
* Special big-R17 for very short distance
*/
- if (rssi > -35) {
- if (r17 != 0x60)
- rt73usb_bbp_write(rt2x00dev, 17, 0x60);
+ if (qual->rssi > -35) {
+ rt73usb_set_vgc(rt2x00dev, qual, 0x60);
return;
}
/*
* Special big-R17 for short distance
*/
- if (rssi >= -58) {
- if (r17 != up_bound)
- rt73usb_bbp_write(rt2x00dev, 17, up_bound);
+ if (qual->rssi >= -58) {
+ rt73usb_set_vgc(rt2x00dev, qual, up_bound);
return;
}
/*
* Special big-R17 for middle-short distance
*/
- if (rssi >= -66) {
- low_bound += 0x10;
- if (r17 != low_bound)
- rt73usb_bbp_write(rt2x00dev, 17, low_bound);
+ if (qual->rssi >= -66) {
+ rt73usb_set_vgc(rt2x00dev, qual, low_bound + 0x10);
return;
}
/*
* Special mid-R17 for middle distance
*/
- if (rssi >= -74) {
- if (r17 != (low_bound + 0x10))
- rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
+ if (qual->rssi >= -74) {
+ rt73usb_set_vgc(rt2x00dev, qual, low_bound + 0x08);
return;
}
@@ -976,12 +1030,12 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
* Special case: Change up_bound based on the rssi.
* Lower up_bound when rssi is weaker then -74 dBm.
*/
- up_bound -= 2 * (-74 - rssi);
+ up_bound -= 2 * (-74 - qual->rssi);
if (low_bound > up_bound)
up_bound = low_bound;
- if (r17 > up_bound) {
- rt73usb_bbp_write(rt2x00dev, 17, up_bound);
+ if (qual->vgc_level > up_bound) {
+ rt73usb_set_vgc(rt2x00dev, qual, up_bound);
return;
}
@@ -991,17 +1045,12 @@ dynamic_cca_tune:
* r17 does not yet exceed upper limit, continue and base
* the r17 tuning on the false CCA count.
*/
- if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
- r17 += 4;
- if (r17 > up_bound)
- r17 = up_bound;
- rt73usb_bbp_write(rt2x00dev, 17, r17);
- } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
- r17 -= 4;
- if (r17 < low_bound)
- r17 = low_bound;
- rt73usb_bbp_write(rt2x00dev, 17, r17);
- }
+ if ((qual->false_cca > 512) && (qual->vgc_level < up_bound))
+ rt73usb_set_vgc(rt2x00dev, qual,
+ min_t(u8, qual->vgc_level + 4, up_bound));
+ else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound))
+ rt73usb_set_vgc(rt2x00dev, qual,
+ max_t(u8, qual->vgc_level - 4, low_bound));
}
/*
@@ -1012,25 +1061,37 @@ static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
return FIRMWARE_RT2571;
}
-static u16 rt73usb_get_firmware_crc(const void *data, const size_t len)
+static int rt73usb_check_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
{
+ u16 fw_crc;
u16 crc;
/*
- * Use the crc itu-t algorithm.
+ * Only support 2kb firmware files.
+ */
+ if (len != 2048)
+ 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 itu-t algorithm.
+ */
crc = crc_itu_t(0, data, len - 2);
crc = crc_itu_t_byte(crc, 0);
crc = crc_itu_t_byte(crc, 0);
- return crc;
+ return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
}
-static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data,
- const size_t len)
+static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
{
unsigned int i;
int status;
@@ -1449,7 +1510,7 @@ static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_OFDM,
- test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
+ (txdesc->rate_mode == RATE_MODE_OFDM));
rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
@@ -1816,6 +1877,14 @@ static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
__set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
/*
+ * Detect if this device has an hardware controlled radio.
+ */
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+ if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
+ __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
+ /*
* Read frequency offset.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
@@ -2020,7 +2089,9 @@ static int rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
*/
rt2x00dev->hw->flags =
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
- IEEE80211_HW_SIGNAL_DBM;
+ IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_PS_NULLFUNC_STACK;
rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
@@ -2121,6 +2192,7 @@ static int rt73usb_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
struct rt2x00_field32 field;
int retval;
u32 reg;
+ u32 offset;
/*
* First pass the configuration through rt2x00lib, that will
@@ -2132,24 +2204,23 @@ static int rt73usb_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
if (retval)
return retval;
+ /*
+ * We only need to perform additional register initialization
+ * for WMM queues/
+ */
+ if (queue_idx >= 4)
+ return 0;
+
queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
/* Update WMM TXOP register */
- if (queue_idx < 2) {
- field.bit_offset = queue_idx * 16;
- field.bit_mask = 0xffff << field.bit_offset;
-
- rt2x00usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
- rt2x00_set_field32(&reg, field, queue->txop);
- rt2x00usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
- } else if (queue_idx < 4) {
- field.bit_offset = (queue_idx - 2) * 16;
- field.bit_mask = 0xffff << field.bit_offset;
-
- rt2x00usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
- rt2x00_set_field32(&reg, field, queue->txop);
- rt2x00usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
- }
+ offset = AC_TXOP_CSR0 + (sizeof(u32) * (!!(queue_idx & 2)));
+ field.bit_offset = (queue_idx & 1) * 16;
+ field.bit_mask = 0xffff << field.bit_offset;
+
+ rt2x00usb_register_read(rt2x00dev, offset, &reg);
+ rt2x00_set_field32(&reg, field, queue->txop);
+ rt2x00usb_register_write(rt2x00dev, offset, reg);
/* Update WMM registers */
field.bit_offset = queue_idx * 4;
@@ -2214,12 +2285,13 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
.probe_hw = rt73usb_probe_hw,
.get_firmware_name = rt73usb_get_firmware_name,
- .get_firmware_crc = rt73usb_get_firmware_crc,
+ .check_firmware = rt73usb_check_firmware,
.load_firmware = rt73usb_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
.set_device_state = rt73usb_set_device_state,
+ .rfkill_poll = rt73usb_rfkill_poll,
.link_stats = rt73usb_link_stats,
.reset_tuner = rt73usb_reset_tuner,
.link_tuner = rt73usb_link_tuner,
@@ -2228,6 +2300,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
.write_beacon = rt73usb_write_beacon,
.get_tx_data_len = rt73usb_get_tx_data_len,
.kick_tx_queue = rt73usb_kick_tx_queue,
+ .kill_tx_queue = rt2x00usb_kill_tx_queue,
.fill_rxdone = rt73usb_fill_rxdone,
.config_shared_key = rt73usb_config_shared_key,
.config_pairwise_key = rt73usb_config_pairwise_key,
@@ -2295,6 +2368,7 @@ static struct usb_device_id rt73usb_device_table[] = {
/* Billionton */
{ USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
/* Buffalo */
+ { USB_DEVICE(0x0411, 0x00d8), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
/* CNet */
{ USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-26 03:43:55 +0000