/******************************************************************************
*
- * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
+#include <linux/sched.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#define VS
#endif
-#define IWL39_VERSION "1.2.26k" VD VS
-#define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
+#define DRV_VERSION IWLWIFI_VERSION VD VS
+#define DRV_COPYRIGHT "Copyright(c) 2003-2010 Intel Corporation"
#define DRV_AUTHOR "<ilw@linux.intel.com>"
-#define DRV_VERSION IWL39_VERSION
-
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_VERSION(DRV_VERSION);
txq = &priv->txq[txq_id];
q = &txq->q;
+ if ((iwl_queue_space(q) < q->high_mark))
+ goto drop;
+
spin_lock_irqsave(&priv->lock, flags);
idx = get_cmd_index(q, q->write_ptr, 0);
break;
}
- free_pages(cmd.reply_page, priv->hw_params.rx_page_order);
+ iwl_free_pages(priv, cmd.reply_page);
return rc;
}
pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
PAGE_SIZE << priv->hw_params.rx_page_order,
PCI_DMA_FROMDEVICE);
- priv->alloc_rxb_page--;
- __free_pages(rxq->pool[i].page,
- priv->hw_params.rx_page_order);
+ __iwl_free_pages(priv, rxq->pool[i].page);
rxq->pool[i].page = NULL;
}
list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
PAGE_SIZE << priv->hw_params.rx_page_order,
PCI_DMA_FROMDEVICE);
- __free_pages(rxq->pool[i].page,
- priv->hw_params.rx_page_order);
+ __iwl_free_pages(priv, rxq->pool[i].page);
rxq->pool[i].page = NULL;
- priv->alloc_rxb_page--;
}
}
return (int)ratio2dB[sig_ratio];
}
-#define PERFECT_RSSI (-20) /* dBm */
-#define WORST_RSSI (-95) /* dBm */
-#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
-
-/* Calculate an indication of rx signal quality (a percentage, not dBm!).
- * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
- * about formulas used below. */
-int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
-{
- int sig_qual;
- int degradation = PERFECT_RSSI - rssi_dbm;
-
- /* If we get a noise measurement, use signal-to-noise ratio (SNR)
- * as indicator; formula is (signal dbm - noise dbm).
- * SNR at or above 40 is a great signal (100%).
- * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
- * Weakest usable signal is usually 10 - 15 dB SNR. */
- if (noise_dbm) {
- if (rssi_dbm - noise_dbm >= 40)
- return 100;
- else if (rssi_dbm < noise_dbm)
- return 0;
- sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
-
- /* Else use just the signal level.
- * This formula is a least squares fit of data points collected and
- * compared with a reference system that had a percentage (%) display
- * for signal quality. */
- } else
- sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
- (15 * RSSI_RANGE + 62 * degradation)) /
- (RSSI_RANGE * RSSI_RANGE);
-
- if (sig_qual > 100)
- sig_qual = 100;
- else if (sig_qual < 1)
- sig_qual = 0;
-
- return sig_qual;
-}
-
/**
* iwl3945_rx_handle - Main entry function for receiving responses from uCode
*
tasklet_kill(&priv->irq_tasklet);
}
-#ifdef CONFIG_IWLWIFI_DEBUG
static const char *desc_lookup(int i)
{
switch (i) {
* iwl3945_print_event_log - Dump error event log to syslog
*
*/
-static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
- u32 num_events, u32 mode)
+static int iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
+ u32 num_events, u32 mode,
+ int pos, char **buf, size_t bufsz)
{
u32 i;
u32 base; /* SRAM byte address of event log header */
unsigned long reg_flags;
if (num_events == 0)
- return;
+ return pos;
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
if (mode == 0) {
/* data, ev */
- IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
- trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
+ if (bufsz) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "0x%08x:%04u\n",
+ time, ev);
+ } else {
+ IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
+ trace_iwlwifi_dev_ucode_event(priv, 0,
+ time, ev);
+ }
} else {
data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
- trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+ if (bufsz) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "%010u:0x%08x:%04u\n",
+ time, data, ev);
+ } else {
+ IWL_ERR(priv, "%010u\t0x%08x\t%04u\n",
+ time, data, ev);
+ trace_iwlwifi_dev_ucode_event(priv, time,
+ data, ev);
+ }
}
}
/* Allow device to power down */
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+ return pos;
+}
+
+/**
+ * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog
+ */
+static int iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+ u32 num_wraps, u32 next_entry,
+ u32 size, u32 mode,
+ int pos, char **buf, size_t bufsz)
+{
+ /*
+ * display the newest DEFAULT_LOG_ENTRIES entries
+ * i.e the entries just before the next ont that uCode would fill.
+ */
+ if (num_wraps) {
+ if (next_entry < size) {
+ pos = iwl3945_print_event_log(priv,
+ capacity - (size - next_entry),
+ size - next_entry, mode,
+ pos, buf, bufsz);
+ pos = iwl3945_print_event_log(priv, 0,
+ next_entry, mode,
+ pos, buf, bufsz);
+ } else
+ pos = iwl3945_print_event_log(priv, next_entry - size,
+ size, mode,
+ pos, buf, bufsz);
+ } else {
+ if (next_entry < size)
+ pos = iwl3945_print_event_log(priv, 0,
+ next_entry, mode,
+ pos, buf, bufsz);
+ else
+ pos = iwl3945_print_event_log(priv, next_entry - size,
+ size, mode,
+ pos, buf, bufsz);
+ }
+ return pos;
}
/* For sanity check only. Actual size is determined by uCode, typ. 512 */
#define IWL3945_MAX_EVENT_LOG_SIZE (512)
-void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
+#define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20)
+
+int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+ char **buf, bool display)
{
u32 base; /* SRAM byte address of event log header */
u32 capacity; /* event log capacity in # entries */
u32 num_wraps; /* # times uCode wrapped to top of log */
u32 next_entry; /* index of next entry to be written by uCode */
u32 size; /* # entries that we'll print */
+ int pos = 0;
+ size_t bufsz = 0;
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
if (!iwl3945_hw_valid_rtc_data_addr(base)) {
IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
- return;
+ return -EINVAL;
}
/* event log header */
/* bail out if nothing in log */
if (size == 0) {
IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
- return;
+ return pos;
}
- IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
- size, num_wraps);
-
- /* if uCode has wrapped back to top of log, start at the oldest entry,
- * i.e the next one that uCode would fill. */
- if (num_wraps)
- iwl3945_print_event_log(priv, next_entry,
- capacity - next_entry, mode);
-
- /* (then/else) start at top of log */
- iwl3945_print_event_log(priv, 0, next_entry, mode);
-
-}
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log)
+ size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES)
+ ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size;
#else
-void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
-{
-}
+ size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES)
+ ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size;
+#endif
-void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
-{
-}
+ IWL_ERR(priv, "Start IWL Event Log Dump: display last %d count\n",
+ size);
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (display) {
+ if (full_log)
+ bufsz = capacity * 48;
+ else
+ bufsz = size * 48;
+ *buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!*buf)
+ return -ENOMEM;
+ }
+ if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
+ /* if uCode has wrapped back to top of log,
+ * start at the oldest entry,
+ * i.e the next one that uCode would fill.
+ */
+ if (num_wraps)
+ pos = iwl3945_print_event_log(priv, next_entry,
+ capacity - next_entry, mode,
+ pos, buf, bufsz);
+
+ /* (then/else) start at top of log */
+ pos = iwl3945_print_event_log(priv, 0, next_entry, mode,
+ pos, buf, bufsz);
+ } else
+ pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+ next_entry, size, mode,
+ pos, buf, bufsz);
+#else
+ pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+ next_entry, size, mode,
+ pos, buf, bufsz);
#endif
+ return pos;
+}
static void iwl3945_irq_tasklet(struct iwl_priv *priv)
{
priv->active_rate = priv->rates_mask;
priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
- iwl_power_update_mode(priv, false);
+ iwl_power_update_mode(priv, true);
if (iwl_is_associated(priv)) {
struct iwl3945_rxon_cmd *active_rxon =
return -EAGAIN;
mutex_lock(&priv->mutex);
- rc = iwl_send_statistics_request(priv, 0);
+ rc = iwl_send_statistics_request(priv, CMD_SYNC, false);
mutex_unlock(&priv->mutex);
if (rc) {
priv->retry_rate = 1;
priv->ibss_beacon = NULL;
- spin_lock_init(&priv->lock);
spin_lock_init(&priv->sta_lock);
spin_lock_init(&priv->hcmd_lock);
priv->band = IEEE80211_BAND_2GHZ;
priv->iw_mode = NL80211_IFTYPE_STATION;
+ priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
iwl_reset_qos(priv);
/* Tell mac80211 our characteristics */
hw->flags = IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_NOISE_DBM |
- IEEE80211_HW_SPECTRUM_MGMT |
- IEEE80211_HW_SUPPORTS_PS |
- IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
+ IEEE80211_HW_SPECTRUM_MGMT;
+
+ if (!priv->cfg->broken_powersave)
+ hw->flags |= IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
- hw->wiphy->custom_regulatory = true;
-
- /* Firmware does not support this */
- hw->wiphy->disable_beacon_hints = true;
+ hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY |
+ WIPHY_FLAG_DISABLE_BEACON_HINTS;
hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
/* we create the 802.11 header and a zero-length SSID element */
* PCI Tx retries from interfering with C3 CPU state */
pci_write_config_byte(pdev, 0x41, 0x00);
- /* this spin lock will be used in apm_ops.init and EEPROM access
+ /* these spin locks will be used in apm_ops.init and EEPROM access
* we should init now
*/
spin_lock_init(&priv->reg_lock);
+ spin_lock_init(&priv->lock);
/***********************
* 4. Read EEPROM
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff