/******************************************************************************
*
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2012 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.
static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
u32 start_idx, u32 num_events,
- u32 mode)
+ u32 capacity, u32 mode)
{
u32 i;
u32 ptr; /* SRAM byte address of log data */
ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
/* Make sure device is powered up for SRAM reads */
- spin_lock_irqsave(&bus(priv)->reg_lock, reg_flags);
- if (iwl_grab_nic_access(bus(priv))) {
- spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
+ spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
+ if (iwl_grab_nic_access(trans(priv))) {
+ spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
return;
}
/* Set starting address; reads will auto-increment */
- iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr);
+ iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
rmb();
+ /*
+ * Refuse to read more than would have fit into the log from
+ * the current start_idx. This used to happen due to the race
+ * described below, but now WARN because the code below should
+ * prevent it from happening here.
+ */
+ if (WARN_ON(num_events > capacity - start_idx))
+ num_events = capacity - start_idx;
+
/*
* "time" is actually "data" for mode 0 (no timestamp).
* place event id # at far right for easier visual parsing.
*/
for (i = 0; i < num_events; i++) {
- ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
- time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
+ ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
+ time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
if (mode == 0) {
- trace_iwlwifi_dev_ucode_cont_event(priv,
- 0, time, ev);
+ trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev);
} else {
- data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
- trace_iwlwifi_dev_ucode_cont_event(priv,
- time, data, ev);
+ data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
+ trace_iwlwifi_dev_ucode_cont_event(priv, time,
+ data, ev);
}
}
/* Allow device to power down */
- iwl_release_nic_access(bus(priv));
- spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
+ iwl_release_nic_access(trans(priv));
+ spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
}
static void iwl_continuous_event_trace(struct iwl_priv *priv)
{
u32 capacity; /* event log capacity in # entries */
+ struct {
+ u32 capacity;
+ u32 mode;
+ u32 wrap_counter;
+ u32 write_counter;
+ } __packed read;
u32 base; /* SRAM byte address of event log header */
u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
u32 num_wraps; /* # times uCode wrapped to top of log */
u32 next_entry; /* index of next entry to be written by uCode */
- base = priv->shrd->device_pointers.error_event_table;
+ base = priv->shrd->device_pointers.log_event_table;
if (iwlagn_hw_valid_rtc_data_addr(base)) {
- capacity = iwl_read_targ_mem(bus(priv), base);
- num_wraps = iwl_read_targ_mem(bus(priv),
- base + (2 * sizeof(u32)));
- mode = iwl_read_targ_mem(bus(priv), base + (1 * sizeof(u32)));
- next_entry = iwl_read_targ_mem(bus(priv),
- base + (3 * sizeof(u32)));
+ iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read));
+
+ capacity = read.capacity;
+ mode = read.mode;
+ num_wraps = read.wrap_counter;
+ next_entry = read.write_counter;
} else
return;
+ /*
+ * Unfortunately, the uCode doesn't use temporary variables.
+ * Therefore, it can happen that we read next_entry == capacity,
+ * which really means next_entry == 0.
+ */
+ if (unlikely(next_entry == capacity))
+ next_entry = 0;
+ /*
+ * Additionally, the uCode increases the write pointer before
+ * the wraps counter, so if the write pointer is smaller than
+ * the old write pointer (wrap occurred) but we read that no
+ * wrap occurred, we actually read between the next_entry and
+ * num_wraps update (this does happen in practice!!) -- take
+ * that into account by increasing num_wraps.
+ */
+ if (unlikely(next_entry < priv->event_log.next_entry &&
+ num_wraps == priv->event_log.num_wraps))
+ num_wraps++;
+
if (num_wraps == priv->event_log.num_wraps) {
- iwl_print_cont_event_trace(priv,
- base, priv->event_log.next_entry,
- next_entry - priv->event_log.next_entry,
- mode);
+ iwl_print_cont_event_trace(
+ priv, base, priv->event_log.next_entry,
+ next_entry - priv->event_log.next_entry,
+ capacity, mode);
+
priv->event_log.non_wraps_count++;
} else {
- if ((num_wraps - priv->event_log.num_wraps) > 1)
+ if (num_wraps - priv->event_log.num_wraps > 1)
priv->event_log.wraps_more_count++;
else
priv->event_log.wraps_once_count++;
+
trace_iwlwifi_dev_ucode_wrap_event(priv,
num_wraps - priv->event_log.num_wraps,
next_entry, priv->event_log.next_entry);
+
if (next_entry < priv->event_log.next_entry) {
- iwl_print_cont_event_trace(priv, base,
- priv->event_log.next_entry,
- capacity - priv->event_log.next_entry,
- mode);
+ iwl_print_cont_event_trace(
+ priv, base, priv->event_log.next_entry,
+ capacity - priv->event_log.next_entry,
+ capacity, mode);
- iwl_print_cont_event_trace(priv, base, 0,
- next_entry, mode);
+ iwl_print_cont_event_trace(
+ priv, base, 0, next_entry, capacity, mode);
} else {
- iwl_print_cont_event_trace(priv, base,
- next_entry, capacity - next_entry,
- mode);
+ iwl_print_cont_event_trace(
+ priv, base, next_entry,
+ capacity - next_entry,
+ capacity, mode);
- iwl_print_cont_event_trace(priv, base, 0,
- next_entry, mode);
+ iwl_print_cont_event_trace(
+ priv, base, 0, next_entry, capacity, mode);
}
}
+
priv->event_log.num_wraps = num_wraps;
priv->event_log.next_entry = next_entry;
}
priv->firmware_name);
return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
- bus(priv)->dev,
+ trans(priv)->dev,
GFP_KERNEL, priv, iwl_ucode_callback);
}
/* Runtime instructions and 2 copies of data:
* 1) unmodified from disk
* 2) backup cache for save/restore during power-downs */
- if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_rt.code,
+ if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_rt.code,
pieces.inst, pieces.inst_size))
goto err_pci_alloc;
- if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_rt.data,
+ if (iwl_alloc_fw_desc(trans(priv), &trans(priv)->ucode_rt.data,
pieces.data, pieces.data_size))
goto err_pci_alloc;
/* Initialization instructions and data */
if (pieces.init_size && pieces.init_data_size) {
- if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_init.code,
+ if (iwl_alloc_fw_desc(trans(priv),
+ &trans(priv)->ucode_init.code,
pieces.init, pieces.init_size))
goto err_pci_alloc;
- if (iwl_alloc_fw_desc(bus(priv), &trans(priv)->ucode_init.data,
+ if (iwl_alloc_fw_desc(trans(priv),
+ &trans(priv)->ucode_init.data,
pieces.init_data, pieces.init_data_size))
goto err_pci_alloc;
}
/* WoWLAN instructions and data */
if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
- if (iwl_alloc_fw_desc(bus(priv),
+ if (iwl_alloc_fw_desc(trans(priv),
&trans(priv)->ucode_wowlan.code,
pieces.wowlan_inst,
pieces.wowlan_inst_size))
goto err_pci_alloc;
- if (iwl_alloc_fw_desc(bus(priv),
+ if (iwl_alloc_fw_desc(trans(priv),
&trans(priv)->ucode_wowlan.data,
pieces.wowlan_data,
pieces.wowlan_data_size))
iwl_dealloc_ucode(trans(priv));
out_unbind:
complete(&priv->firmware_loading_complete);
- device_release_driver(bus(priv)->dev);
+ device_release_driver(trans(priv)->dev);
release_firmware(ucode_raw);
}
int ret = 0;
spin_lock_irqsave(&priv->shrd->lock, flags);
- iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
+ iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
spin_unlock_irqrestore(&priv->shrd->lock, flags);
priv->thermal_throttle.ct_kill_toggle = false;
int ret = 0;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- /*TODO: this should go to the transport layer */
- iwl_reset_ict(trans(priv));
-
IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
/* After the ALIVE response, we can send host commands to the uCode */
if (iwl_is_rfkill(priv->shrd))
return -ERFKILL;
+ if (priv->event_log.ucode_trace) {
+ /* start collecting data now */
+ mod_timer(&priv->ucode_trace, jiffies);
+ }
+
/* download priority table before any calibration request */
if (cfg(priv)->bt_params &&
cfg(priv)->bt_params->advanced_bt_coexist) {
static u32 iwl_hw_detect(struct iwl_priv *priv)
{
- return iwl_read32(bus(priv), CSR_HW_REV);
+ return iwl_read32(trans(priv), CSR_HW_REV);
}
/* Size of one Rx buffer in host DRAM */
static void iwl_debug_config(struct iwl_priv *priv)
{
- dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
+ dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
#ifdef CONFIG_IWLWIFI_DEBUG
"enabled\n");
#else
"disabled\n");
#endif
- dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
+ dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
#ifdef CONFIG_IWLWIFI_DEBUGFS
"enabled\n");
#else
"disabled\n");
#endif
- dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
+ dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
#ifdef CONFIG_IWLWIFI_DEVICE_TRACING
"enabled\n");
#else
"disabled\n");
#endif
- dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
+ dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
"enabled\n");
#else
"disabled\n");
#endif
- dev_printk(KERN_INFO, bus(priv)->dev, "CONFIG_IWLWIFI_P2P "
+ dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
#ifdef CONFIG_IWLWIFI_P2P
"enabled\n");
#else
}
priv = hw->priv;
- priv->shrd = &priv->_shrd;
- bus->shrd = priv->shrd;
- priv->shrd->bus = bus;
+ priv->shrd = bus->shrd;
priv->shrd->priv = priv;
- priv->shrd->trans = trans_ops->alloc(priv->shrd);
- if (priv->shrd->trans == NULL) {
- err = -ENOMEM;
- goto out_free_traffic_mem;
- }
-
/* At this point both hw and priv are allocated. */
- SET_IEEE80211_DEV(hw, bus(priv)->dev);
+ SET_IEEE80211_DEV(hw, trans(priv)->dev);
/* what debugging capabilities we have */
iwl_debug_config(priv);
/* these spin locks will be used in apm_ops.init and EEPROM access
* we should init now
*/
- spin_lock_init(&bus(priv)->reg_lock);
+ spin_lock_init(&trans(priv)->reg_lock);
spin_lock_init(&priv->shrd->lock);
/*
* strange state ... like being left stranded by a primary kernel
* and this is now the kdump kernel trying to start up
*/
- iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+ iwl_write32(trans(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
/***********************
* 3. Read REV register
IWL_INFO(priv, "Detected %s, REV=0x%X\n",
cfg(priv)->name, hw_rev);
- err = iwl_trans_request_irq(trans(priv));
+ err = iwl_trans_start_hw(trans(priv));
if (err)
- goto out_free_trans;
-
- if (iwl_trans_prepare_card_hw(trans(priv))) {
- err = -EIO;
- IWL_WARN(priv, "Failed, HW not ready\n");
- goto out_free_trans;
- }
+ goto out_free_traffic_mem;
/*****************
* 4. Read EEPROM
*****************/
/* Read the EEPROM */
err = iwl_eeprom_init(priv, hw_rev);
+ /* Reset chip to save power until we load uCode during "up". */
+ iwl_apm_stop(priv);
if (err) {
IWL_ERR(priv, "Unable to init EEPROM\n");
- goto out_free_trans;
+ goto out_free_traffic_mem;
}
err = iwl_eeprom_check_version(priv);
if (err)
iwl_enable_rfkill_int(priv);
/* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl_read32(bus(priv),
+ if (iwl_read32(trans(priv),
CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
else
iwl_uninit_drv(priv);
out_free_eeprom:
iwl_eeprom_free(priv->shrd);
-out_free_trans:
- iwl_trans_free(trans(priv));
out_free_traffic_mem:
iwl_free_traffic_mem(priv);
ieee80211_free_hw(priv->hw);
priv->shrd->workqueue = NULL;
iwl_free_traffic_mem(priv);
- iwl_trans_free(trans(priv));
-
iwl_uninit_drv(priv);
dev_kfree_skb(priv->beacon_skb);
module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
MODULE_PARM_DESC(led_mode, "0=system default, "
- "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
+ "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
module_param_named(power_save, iwlagn_mod_params.power_save,
bool, S_IRUGO);
projects / cascardo / linux.git / blobdiff