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openwrt: honour gcc extra configuration flags
[openwrt.git] / package / rt2x00 / src / rt73usb.c
diff --git a/package/rt2x00/src/rt73usb.c b/package/rt2x00/src/rt73usb.c
index 04261fa..c80bee1 100644 (file)
--- a/package/rt2x00/src/rt73usb.c
+++ b/package/rt2x00/src/rt73usb.c
@@ -38,6 +38,7 @@
 #include <linux/etherdevice.h>
 
 #include "rt2x00.h"
 #include <linux/etherdevice.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00usb.h"
 #include "rt73usb.h"
 
 #include "rt2x00usb.h"
 #include "rt73usb.h"
 
@@ -745,13 +746,19 @@ static void rt73usb_disable_led(struct rt2x00_dev *rt2x00dev)
                0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
 }
 
                0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
 }
 
-static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, char rssi)
+static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, int rssi)
 {
        u32 led;
 
        if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
                return;
 
 {
        u32 led;
 
        if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
                return;
 
+       /*
+        * Led handling requires a positive value for the rssi,
+        * to do that correctly we need to add the correction.
+        */
+       rssi += rt2x00dev->rssi_offset;
+
        if (rssi <= 30)
                led = 0;
        else if (rssi <= 39)
        if (rssi <= 30)
                led = 0;
        else if (rssi <= 39)
@@ -773,8 +780,9 @@ static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, char rssi)
 /*
  * Link tuning
  */
 /*
  * Link tuning
  */
-static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 {
 {
+       int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
        u32 reg;
        u8 r17;
        u8 up_bound;
        u32 reg;
        u8 r17;
        u8 up_bound;
@@ -880,11 +888,13 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
                if (r17 > up_bound)
                        r17 = up_bound;
                rt73usb_bbp_write(rt2x00dev, 17, r17);
                if (r17 > up_bound)
                        r17 = up_bound;
                rt73usb_bbp_write(rt2x00dev, 17, r17);
+               rt2x00dev->rx_status.noise = r17;
        } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
                r17 -= 4;
                if (r17 < low_bound)
                        r17 = low_bound;
                rt73usb_bbp_write(rt2x00dev, 17, r17);
        } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
                r17 -= 4;
                if (r17 < low_bound)
                        r17 = low_bound;
                rt73usb_bbp_write(rt2x00dev, 17, r17);
+               rt2x00dev->rx_status.noise = r17;
        }
 }
 
        }
 }
 
@@ -952,51 +962,6 @@ static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
        return 0;
 }
 
        return 0;
 }
 
-static void rt73usb_init_rxring(struct rt2x00_dev *rt2x00dev)
-{
-       struct usb_device *usb_dev =
-               interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
-       unsigned int i;
-
-       for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
-               usb_fill_bulk_urb(
-                       rt2x00dev->rx->entry[i].priv,
-                       usb_dev,
-                       usb_rcvbulkpipe(usb_dev, 1),
-                       rt2x00dev->rx->entry[i].skb->data,
-                       rt2x00dev->rx->entry[i].skb->len,
-                       rt73usb_interrupt_rxdone,
-                       &rt2x00dev->rx->entry[i]);
-       }
-
-       rt2x00_ring_index_clear(rt2x00dev->rx);
-}
-
-static void rt73usb_init_txring(struct rt2x00_dev *rt2x00dev,
-       const int queue)
-{
-       struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
-       unsigned int i;
-
-       for (i = 0; i < ring->stats.limit; i++)
-               ring->entry[i].flags = 0;
-
-       rt2x00_ring_index_clear(ring);
-}
-
-static int rt73usb_init_rings(struct rt2x00_dev *rt2x00dev)
-{
-       rt73usb_init_rxring(rt2x00dev);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA2);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA3);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA4);
-       rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
-
-       return 0;
-}
-
 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
@@ -1006,7 +971,12 @@ static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
 
        rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
 
 
        rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
 
-       rt73usb_register_write(rt2x00dev, TXRX_CSR0, 0x025eb032);
+       rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+       rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
+       rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 1);
+       rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 1);
+       rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
+       rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 
        rt73usb_register_write(rt2x00dev, TXRX_CSR1, 0x9eaa9eaf);
        rt73usb_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d);
 
        rt73usb_register_write(rt2x00dev, TXRX_CSR1, 0x9eaa9eaf);
        rt73usb_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d);
@@ -1049,10 +1019,6 @@ static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
        rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
        rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
 
        rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
        rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
 
-       rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
-       rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
-       rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
-
        /*
         * We must clear the error counters.
         * These registers are cleared on read,
        /*
         * We must clear the error counters.
         * These registers are cleared on read,
@@ -1164,8 +1130,7 @@ static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
        /*
         * Initialize all registers.
         */
        /*
         * Initialize all registers.
         */
-       if (rt73usb_init_rings(rt2x00dev) ||
-           rt73usb_init_registers(rt2x00dev) ||
+       if (rt73usb_init_registers(rt2x00dev) ||
            rt73usb_init_bbp(rt2x00dev)) {
                ERROR(rt2x00dev, "Register initialization failed.\n");
                return -EIO;
            rt73usb_init_bbp(rt2x00dev)) {
                ERROR(rt2x00dev, "Register initialization failed.\n");
                return -EIO;
@@ -1344,74 +1309,84 @@ static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
 }
 
 /*
 }
 
 /*
- * Interrupt functions.
+ * RX control handlers
  */
  */
-static void rt73usb_interrupt_rxdone(struct urb *urb)
+static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
+{
+       u16 eeprom;
+       char offset;
+       char lna;
+
+       lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
+       switch (lna) {
+               case 3:
+                       offset = 90;
+               break;
+               case 2:
+                       offset = 74;
+               break;
+               case 1:
+                       offset = 64;
+               break;
+               default:
+                       return 0;
+       }
+
+       if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
+               if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
+                       if (lna == 3 || lna == 2)
+                               offset += 10;
+               } else {
+                       if (lna == 3)
+                               offset += 6;
+                       else if (lna == 2)
+                               offset += 8;
+               }
+
+               rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
+               offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
+       } else {
+               if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags))
+                       offset += 14;
+
+               rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
+               offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
+       }
+
+       return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
+}
+
+static int rt73usb_fill_rxdone(struct data_entry *entry,
+       int *signal, int *rssi, int *ofdm)
 {
 {
-       struct data_entry *entry = (struct data_entry*)urb->context;
-       struct data_ring *ring = entry->ring;
-       struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
        struct data_desc *rxd = (struct data_desc*)entry->skb->data;
        u32 word0;
        u32 word1;
        struct data_desc *rxd = (struct data_desc*)entry->skb->data;
        u32 word0;
        u32 word1;
-       int signal;
-       int rssi;
-       int ofdm;
-       u16 size;
-
-       if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
-           !__test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
-               return;
-
-       /*
-        * Check if the received data is simply too small
-        * to be actually valid, or if the urb is signaling
-        * a problem.
-        */
-       if (urb->actual_length < entry->ring->desc_size || urb->status)
-               goto skip_entry;
 
        rt2x00_desc_read(rxd, 0, &word0);
        rt2x00_desc_read(rxd, 1, &word1);
 
        /*
         * TODO: Don't we need to keep statistics
 
        rt2x00_desc_read(rxd, 0, &word0);
        rt2x00_desc_read(rxd, 1, &word1);
 
        /*
         * TODO: Don't we need to keep statistics
-        * updated about events like CRC and physical errors?
+        * updated about these errors?
         */
        if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
            rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
         */
        if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
            rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
-               goto skip_entry;
+               return -EINVAL;
 
        /*
         * Obtain the status about this packet.
         */
 
        /*
         * Obtain the status about this packet.
         */
-       size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
-       signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
-       rssi = rt2x00_get_field32(word1, RXD_W1_RSSI);
-       ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+       *signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
+       *rssi = rt73usb_agc_to_rssi(entry->ring->rt2x00dev, word1);
+       *ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
 
        /*
 
        /*
-        * Trim the skb_buffer to only contain the valid
-        * frame data (so ignore the device's descriptor).
+        * Pull the skb to clear the descriptor area.
         */
         */
-       skb_pull(entry->skb, ring->desc_size);
-       skb_trim(entry->skb, size);
+       skb_pull(entry->skb, entry->ring->desc_size);
 
 
-       /*
-        * Send the packet to upper layer, and update urb.
-        */
-       rt2x00lib_rxdone(entry, NULL, ring->data_size + ring->desc_size,
-               signal, rssi, ofdm);
-       urb->transfer_buffer = entry->skb->data;
-       urb->transfer_buffer_length = entry->skb->len;
-
-skip_entry:
-       if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
-               __set_bit(ENTRY_OWNER_NIC, &entry->flags);
-               usb_submit_urb(urb, GFP_ATOMIC);
-       }
-
-       rt2x00_ring_index_inc(ring);
+       return rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
 }
 
 /*
 }
 
 /*
@@ -1420,6 +1395,8 @@ skip_entry:
 static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
 {
        u16 word;
 static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
 {
        u16 word;
+       u8 *mac;
+       char value;
 
        /*
         * Allocate the eeprom memory, check the eeprom width
 
        /*
         * Allocate the eeprom memory, check the eeprom width
@@ -1437,6 +1414,12 @@ static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
        /*
         * Start validation of the data that has been read.
         */
        /*
         * Start validation of the data that has been read.
         */
+       mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+       if (!is_valid_ether_addr(mac)) {
+               random_ether_addr(mac);
+               EEPROM(rt2x00dev, "MAC: " MAC_FMT "\n", MAC_ARG(mac));
+       }
+
        rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
        if (word == 0xffff) {
                rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
        rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
        if (word == 0xffff) {
                rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
@@ -1481,6 +1464,38 @@ static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
                EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
        }
 
                EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
        }
 
+       rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
+       if (word == 0xffff) {
+               rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
+               rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
+               rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
+               EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
+       } else {
+               value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
+               if (value < -10 || value > 10)
+                       rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
+               value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
+               if (value < -10 || value > 10)
+                       rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
+               rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
+       }
+
+       rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
+       if (word == 0xffff) {
+               rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
+               rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
+               rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
+               EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
+       } else {
+               value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
+               if (value < -10 || value > 10)
+                       rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
+               value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
+               if (value < -10 || value > 10)
+                       rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
+               rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
+       }
+
        return 0;
 }
 
        return 0;
 }
 
@@ -1612,12 +1627,17 @@ static void rt73usb_init_hw_mode(struct rt2x00_dev *rt2x00dev)
                IEEE80211_HW_WEP_INCLUDE_IV |
                IEEE80211_HW_DATA_NULLFUNC_ACK |
                IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
                IEEE80211_HW_WEP_INCLUDE_IV |
                IEEE80211_HW_DATA_NULLFUNC_ACK |
                IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
-               IEEE80211_HW_MONITOR_DURING_OPER;
+               IEEE80211_HW_MONITOR_DURING_OPER |
+               IEEE80211_HW_NO_PROBE_FILTERING;
        rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
        rt2x00dev->hw->max_rssi = MAX_RX_SSI;
        rt2x00dev->hw->max_noise = MAX_RX_NOISE;
        rt2x00dev->hw->queues = 5;
 
        rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
        rt2x00dev->hw->max_rssi = MAX_RX_SSI;
        rt2x00dev->hw->max_noise = MAX_RX_NOISE;
        rt2x00dev->hw->queues = 5;
 
+       SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
+       SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
+               rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0));
+
        /*
         * Set device specific, but channel independent RF values.
         */
        /*
         * Set device specific, but channel independent RF values.
         */
@@ -1638,7 +1658,6 @@ static void rt73usb_init_hw_mode(struct rt2x00_dev *rt2x00dev)
        /*
         * Initialize hw_mode information.
         */
        /*
         * Initialize hw_mode information.
         */
-       spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
        spec->num_modes = 2;
        spec->num_rates = 12;
        spec->num_channels = 14;
        spec->num_modes = 2;
        spec->num_rates = 12;
        spec->num_channels = 14;
@@ -1683,10 +1702,15 @@ static int rt73usb_init_hw(struct rt2x00_dev *rt2x00dev)
        rt73usb_init_hw_mode(rt2x00dev);
 
        /*
        rt73usb_init_hw_mode(rt2x00dev);
 
        /*
-        * rt73usb requires firmware
+        * This device requires firmware
         */
        __set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags);
 
         */
        __set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags);
 
+       /*
+        * Set the rssi offset.
+        */
+       rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
+
        return 0;
 }
 
        return 0;
 }
 
@@ -1752,8 +1776,6 @@ static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
 static const struct ieee80211_ops rt73usb_mac80211_ops = {
        .tx                     = rt2x00lib_tx,
        .reset                  = rt2x00lib_reset,
 static const struct ieee80211_ops rt73usb_mac80211_ops = {
        .tx                     = rt2x00lib_tx,
        .reset                  = rt2x00lib_reset,
-       .open                   = rt2x00lib_open,
-       .stop                   = rt2x00lib_stop,
        .add_interface          = rt2x00lib_add_interface,
        .remove_interface       = rt2x00lib_remove_interface,
        .config                 = rt2x00lib_config,
        .add_interface          = rt2x00lib_add_interface,
        .remove_interface       = rt2x00lib_remove_interface,
        .config                 = rt2x00lib_config,
@@ -1779,6 +1801,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
        .write_tx_desc          = rt73usb_write_tx_desc,
        .write_tx_data          = rt2x00usb_write_tx_data,
        .kick_tx_queue          = rt73usb_kick_tx_queue,
        .write_tx_desc          = rt73usb_write_tx_desc,
        .write_tx_data          = rt2x00usb_write_tx_data,
        .kick_tx_queue          = rt73usb_kick_tx_queue,
+       .fill_rxdone            = rt73usb_fill_rxdone,
        .config_type            = rt73usb_config_type,
        .config_phymode         = rt73usb_config_phymode,
        .config_channel         = rt73usb_config_channel,
        .config_type            = rt73usb_config_type,
        .config_phymode         = rt73usb_config_phymode,
        .config_channel         = rt73usb_config_channel,
@@ -1881,14 +1904,11 @@ static struct usb_driver rt73usb_driver = {
 
 static int __init rt73usb_init(void)
 {
 
 static int __init rt73usb_init(void)
 {
-       printk(KERN_INFO "Loading module: %s - %s by %s.\n",
-               DRV_NAME, DRV_VERSION, DRV_PROJECT);
        return usb_register(&rt73usb_driver);
 }
 
 static void __exit rt73usb_exit(void)
 {
        return usb_register(&rt73usb_driver);
 }
 
 static void __exit rt73usb_exit(void)
 {
-       printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
        usb_deregister(&rt73usb_driver);
 }
 
        usb_deregister(&rt73usb_driver);
 }
 
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