/******************************************************************************
*
- * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#include <linux/wireless.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
+#include <asm/unaligned.h>
-#define IWL 4965
-
-#include "iwlwifi.h"
+#include "iwl-eeprom.h"
#include "iwl-4965.h"
+#include "iwl-core.h"
+#include "iwl-io.h"
#include "iwl-helpers.h"
+/* module parameters */
+static struct iwl_mod_params iwl4965_mod_params = {
+ .num_of_queues = IWL4965_MAX_NUM_QUEUES,
+ .enable_qos = 1,
+ .amsdu_size_8K = 1,
+ /* the rest are 0 by default */
+};
+
+static void iwl4965_hw_card_show_info(struct iwl_priv *priv);
+
#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
IWL_RATE_SISO_##s##M_PLCP, \
* maps to IWL_RATE_INVALID
*
*/
-const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT] = {
IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
};
+#ifdef CONFIG_IWL4965_HT
+
+static const u16 default_tid_to_tx_fifo[] = {
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_AC3
+};
+
+#endif /*CONFIG_IWL4965_HT */
+
+/* check contents of special bootstrap uCode SRAM */
+static int iwl4965_verify_bsm(struct iwl_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ u32 reg;
+ u32 val;
+
+ IWL_DEBUG_INFO("Begin verify bsm\n");
+
+ /* verify BSM SRAM contents */
+ val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
+ for (reg = BSM_SRAM_LOWER_BOUND;
+ reg < BSM_SRAM_LOWER_BOUND + len;
+ reg += sizeof(u32), image++) {
+ val = iwl_read_prph(priv, reg);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("BSM uCode verification failed at "
+ "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+ BSM_SRAM_LOWER_BOUND,
+ reg - BSM_SRAM_LOWER_BOUND, len,
+ val, le32_to_cpu(*image));
+ return -EIO;
+ }
+ }
+
+ IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+
+ return 0;
+}
+
+/**
+ * iwl4965_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL. When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers. Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image. This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program. This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int iwl4965_load_bsm(struct iwl_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ u32 inst_len;
+ u32 data_len;
+ int i;
+ u32 done;
+ u32 reg_offset;
+ int ret;
+
+ IWL_DEBUG_INFO("Begin load bsm\n");
+
+ /* make sure bootstrap program is no larger than BSM's SRAM size */
+ if (len > IWL_MAX_BSM_SIZE)
+ return -EINVAL;
+
+ /* Tell bootstrap uCode where to find the "Initialize" uCode
+ * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
+ * NOTE: iwl4965_initialize_alive_start() will replace these values,
+ * after the "initialize" uCode has run, to point to
+ * runtime/protocol instructions and backup data cache. */
+ pinst = priv->ucode_init.p_addr >> 4;
+ pdata = priv->ucode_init_data.p_addr >> 4;
+ inst_len = priv->ucode_init.len;
+ data_len = priv->ucode_init_data.len;
+
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ return ret;
+
+ iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+ iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+ iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+ iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+ /* Fill BSM memory with bootstrap instructions */
+ for (reg_offset = BSM_SRAM_LOWER_BOUND;
+ reg_offset < BSM_SRAM_LOWER_BOUND + len;
+ reg_offset += sizeof(u32), image++)
+ _iwl_write_prph(priv, reg_offset, le32_to_cpu(*image));
+
+ ret = iwl4965_verify_bsm(priv);
+ if (ret) {
+ iwl_release_nic_access(priv);
+ return ret;
+ }
+
+ /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+ iwl_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
+ iwl_write_prph(priv, BSM_WR_MEM_DST_REG, RTC_INST_LOWER_BOUND);
+ iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+ /* Load bootstrap code into instruction SRAM now,
+ * to prepare to load "initialize" uCode */
+ iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START);
+
+ /* Wait for load of bootstrap uCode to finish */
+ for (i = 0; i < 100; i++) {
+ done = iwl_read_prph(priv, BSM_WR_CTRL_REG);
+ if (!(done & BSM_WR_CTRL_REG_BIT_START))
+ break;
+ udelay(10);
+ }
+ if (i < 100)
+ IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
+ else {
+ IWL_ERROR("BSM write did not complete!\n");
+ return -EIO;
+ }
+
+ /* Enable future boot loads whenever power management unit triggers it
+ * (e.g. when powering back up after power-save shutdown) */
+ iwl_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN);
+
+ iwl_release_nic_access(priv);
+
+ return 0;
+}
+
+static int iwl4965_init_drv(struct iwl_priv *priv)
+{
+ int ret;
+ int i;
+
+ priv->antenna = (enum iwl4965_antenna)priv->cfg->mod_params->antenna;
+ priv->retry_rate = 1;
+ priv->ibss_beacon = NULL;
+
+ spin_lock_init(&priv->lock);
+ spin_lock_init(&priv->power_data.lock);
+ spin_lock_init(&priv->sta_lock);
+ spin_lock_init(&priv->hcmd_lock);
+ spin_lock_init(&priv->lq_mngr.lock);
+
+ priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
+ sizeof(struct iwl4965_shared),
+ &priv->shared_phys);
+
+ if (!priv->shared_virt) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ memset(priv->shared_virt, 0, sizeof(struct iwl4965_shared));
+
+
+ for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
+ INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
+
+ INIT_LIST_HEAD(&priv->free_frames);
+
+ mutex_init(&priv->mutex);
+
+ /* Clear the driver's (not device's) station table */
+ iwlcore_clear_stations_table(priv);
+
+ priv->data_retry_limit = -1;
+ priv->ieee_channels = NULL;
+ priv->ieee_rates = NULL;
+ priv->band = IEEE80211_BAND_2GHZ;
+
+ priv->iw_mode = IEEE80211_IF_TYPE_STA;
+
+ priv->use_ant_b_for_management_frame = 1; /* start with ant B */
+ priv->valid_antenna = 0x7; /* assume all 3 connected */
+ priv->ps_mode = IWL_MIMO_PS_NONE;
+
+ /* Choose which receivers/antennas to use */
+ iwl4965_set_rxon_chain(priv);
+
+ iwlcore_reset_qos(priv);
+
+ priv->qos_data.qos_active = 0;
+ priv->qos_data.qos_cap.val = 0;
+
+ iwlcore_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
+
+ priv->rates_mask = IWL_RATES_MASK;
+ /* If power management is turned on, default to AC mode */
+ priv->power_mode = IWL_POWER_AC;
+ priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
+
+ ret = iwl_init_channel_map(priv);
+ if (ret) {
+ IWL_ERROR("initializing regulatory failed: %d\n", ret);
+ goto err;
+ }
+
+ ret = iwl4965_init_geos(priv);
+ if (ret) {
+ IWL_ERROR("initializing geos failed: %d\n", ret);
+ goto err_free_channel_map;
+ }
+
+ ret = ieee80211_register_hw(priv->hw);
+ if (ret) {
+ IWL_ERROR("Failed to register network device (error %d)\n",
+ ret);
+ goto err_free_geos;
+ }
+
+ priv->hw->conf.beacon_int = 100;
+ priv->mac80211_registered = 1;
+
+ return 0;
+
+err_free_geos:
+ iwl4965_free_geos(priv);
+err_free_channel_map:
+ iwl_free_channel_map(priv);
+err:
+ return ret;
+}
+
static int is_fat_channel(__le32 rxon_flags)
{
return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
static u8 is_single_stream(struct iwl_priv *priv)
{
-#ifdef CONFIG_IWLWIFI_HT
- if (!priv->is_ht_enabled || !priv->current_assoc_ht.is_ht ||
- (priv->active_rate_ht[1] == 0) ||
+#ifdef CONFIG_IWL4965_HT
+ if (!priv->current_ht_config.is_ht ||
+ (priv->current_ht_config.supp_mcs_set[1] == 0) ||
(priv->ps_mode == IWL_MIMO_PS_STATIC))
return 1;
#else
return 1;
-#endif /*CONFIG_IWLWIFI_HT */
+#endif /*CONFIG_IWL4965_HT */
return 0;
}
+int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags)
+{
+ int idx = 0;
+
+ /* 4965 HT rate format */
+ if (rate_n_flags & RATE_MCS_HT_MSK) {
+ idx = (rate_n_flags & 0xff);
+
+ if (idx >= IWL_RATE_MIMO_6M_PLCP)
+ idx = idx - IWL_RATE_MIMO_6M_PLCP;
+
+ idx += IWL_FIRST_OFDM_RATE;
+ /* skip 9M not supported in ht*/
+ if (idx >= IWL_RATE_9M_INDEX)
+ idx += 1;
+ if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
+ return idx;
+
+ /* 4965 legacy rate format, search for match in table */
+ } else {
+ for (idx = 0; idx < ARRAY_SIZE(iwl4965_rates); idx++)
+ if (iwl4965_rates[idx].plcp == (rate_n_flags & 0xFF))
+ return idx;
+ }
+
+ return -1;
+}
+
+/**
+ * translate ucode response to mac80211 tx status control values
+ */
+void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
+ struct ieee80211_tx_control *control)
+{
+ int rate_index;
+
+ control->antenna_sel_tx =
+ ((rate_n_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS);
+ if (rate_n_flags & RATE_MCS_HT_MSK)
+ control->flags |= IEEE80211_TXCTL_OFDM_HT;
+ if (rate_n_flags & RATE_MCS_GF_MSK)
+ control->flags |= IEEE80211_TXCTL_GREEN_FIELD;
+ if (rate_n_flags & RATE_MCS_FAT_MSK)
+ control->flags |= IEEE80211_TXCTL_40_MHZ_WIDTH;
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
+ control->flags |= IEEE80211_TXCTL_DUP_DATA;
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ control->flags |= IEEE80211_TXCTL_SHORT_GI;
+ /* since iwl4965_hwrate_to_plcp_idx is band indifferent, we always use
+ * IEEE80211_BAND_2GHZ band as it contains all the rates */
+ rate_index = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
+ if (rate_index == -1)
+ control->tx_rate = NULL;
+ else
+ control->tx_rate =
+ &priv->bands[IEEE80211_BAND_2GHZ].bitrates[rate_index];
+}
+
/*
* Determine how many receiver/antenna chains to use.
* More provides better reception via diversity. Fewer saves power.
return 0;
}
-int iwl_hw_rxq_stop(struct iwl_priv *priv)
+int iwl4965_hw_rxq_stop(struct iwl_priv *priv)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- /* stop HW */
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
- rc = iwl_poll_restricted_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
+ /* stop Rx DMA */
+ iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+ rc = iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
(1 << 24), 1000);
if (rc < 0)
IWL_ERROR("Can't stop Rx DMA.\n");
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 *addr)
+u8 iwl4965_hw_find_station(struct iwl_priv *priv, const u8 *addr)
{
int i;
int start = 0;
start = IWL_STA_ID;
if (is_broadcast_ether_addr(addr))
- return IWL4965_BROADCAST_ID;
+ return priv->hw_params.bcast_sta_id;
spin_lock_irqsave(&priv->sta_lock, flags);
- for (i = start; i < priv->hw_setting.max_stations; i++)
+ for (i = start; i < priv->hw_params.max_stations; i++)
if ((priv->stations[i].used) &&
(!compare_ether_addr
(priv->stations[i].sta.sta.addr, addr))) {
static int iwl4965_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max)
{
- int rc = 0;
+ int ret;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
if (!pwr_max) {
u32 val;
- rc = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
+ ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
&val);
if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
- iwl_set_bits_mask_restricted_reg(
- priv, APMG_PS_CTRL_REG,
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
~APMG_PS_CTRL_MSK_PWR_SRC);
} else
- iwl_set_bits_mask_restricted_reg(
- priv, APMG_PS_CTRL_REG,
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
~APMG_PS_CTRL_MSK_PWR_SRC);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
-static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl4965_rx_queue *rxq)
{
- int rc;
+ int ret;
unsigned long flags;
+ unsigned int rb_size;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
- /* stop HW */
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
-
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
- rxq->dma_addr >> 8);
-
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
- (priv->hw_setting.shared_phys +
- offsetof(struct iwl_shared, val0)) >> 4);
-
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
- FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
- FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
- IWL_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K |
- /*0x10 << 4 | */
- (RX_QUEUE_SIZE_LOG <<
+ if (priv->cfg->mod_params->amsdu_size_8K)
+ rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K;
+ else
+ rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K;
+
+ /* Stop Rx DMA */
+ iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+
+ /* Reset driver's Rx queue write index */
+ iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
+
+ /* Tell device where to find RBD circular buffer in DRAM */
+ iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
+ rxq->dma_addr >> 8);
+
+ /* Tell device where in DRAM to update its Rx status */
+ iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
+ (priv->shared_phys +
+ offsetof(struct iwl4965_shared, rb_closed)) >> 4);
+
+ /* Enable Rx DMA, enable host interrupt, Rx buffer size 4k, 256 RBDs */
+ iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
+ FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
+ FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
+ rb_size |
+ /* 0x10 << 4 | */
+ (RX_QUEUE_SIZE_LOG <<
FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT));
/*
* iwl_write32(priv,CSR_INT_COAL_REG,0);
*/
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
+/* Tell 4965 where to find the "keep warm" buffer */
static int iwl4965_kw_init(struct iwl_priv *priv)
{
unsigned long flags;
int rc;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc)
goto out;
- iwl_write_restricted(priv, IWL_FH_KW_MEM_ADDR_REG,
+ iwl_write_direct32(priv, IWL_FH_KW_MEM_ADDR_REG,
priv->kw.dma_addr >> 4);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
out:
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
static int iwl4965_kw_alloc(struct iwl_priv *priv)
{
struct pci_dev *dev = priv->pci_dev;
- struct iwl_kw *kw = &priv->kw;
+ struct iwl4965_kw *kw = &priv->kw;
kw->size = IWL4965_KW_SIZE; /* TBW need set somewhere else */
kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr);
return 0;
}
-#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-
-int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode, u16 channel,
- const struct iwl_eeprom_channel *eeprom_ch,
- u8 fat_extension_channel)
-{
- struct iwl_channel_info *ch_info;
-
- ch_info = (struct iwl_channel_info *)
- iwl_get_channel_info(priv, phymode, channel);
-
- if (!is_channel_valid(ch_info))
- return -1;
-
- IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
- " %ddBm): Ad-Hoc %ssupported\n",
- ch_info->channel,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(NARROW),
- CHECK_AND_PRINT(DFS),
- eeprom_ch->flags,
- eeprom_ch->max_power_avg,
- ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
- "" : "not ");
-
- ch_info->fat_eeprom = *eeprom_ch;
- ch_info->fat_max_power_avg = eeprom_ch->max_power_avg;
- ch_info->fat_curr_txpow = eeprom_ch->max_power_avg;
- ch_info->fat_min_power = 0;
- ch_info->fat_scan_power = eeprom_ch->max_power_avg;
- ch_info->fat_flags = eeprom_ch->flags;
- ch_info->fat_extension_channel = fat_extension_channel;
-
- return 0;
-}
-
+/**
+ * iwl4965_kw_free - Free the "keep warm" buffer
+ */
static void iwl4965_kw_free(struct iwl_priv *priv)
{
struct pci_dev *dev = priv->pci_dev;
- struct iwl_kw *kw = &priv->kw;
+ struct iwl4965_kw *kw = &priv->kw;
if (kw->v_addr) {
pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr);
iwl4965_kw_free(priv);
- iwl_hw_txq_ctx_free(priv);
+ /* Free all tx/cmd queues and keep-warm buffer */
+ iwl4965_hw_txq_ctx_free(priv);
- /* Tx CMD queue */
+ /* Alloc keep-warm buffer */
rc = iwl4965_kw_alloc(priv);
if (rc) {
IWL_ERROR("Keep Warm allocation failed");
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (unlikely(rc)) {
IWL_ERROR("TX reset failed");
spin_unlock_irqrestore(&priv->lock, flags);
goto error_reset;
}
- iwl_write_restricted_reg(priv, SCD_TXFACT, 0);
- iwl_release_restricted_access(priv);
+ /* Turn off all Tx DMA channels */
+ iwl_write_prph(priv, IWL49_SCD_TXFACT, 0);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
+ /* Tell 4965 where to find the keep-warm buffer */
rc = iwl4965_kw_init(priv);
if (rc) {
IWL_ERROR("kw_init failed\n");
goto error_reset;
}
- /* Tx queue(s) */
- for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++) {
+ /* Alloc and init all (default 16) Tx queues,
+ * including the command queue (#4) */
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ?
TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
+ rc = iwl4965_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
txq_id);
if (rc) {
IWL_ERROR("Tx %d queue init failed\n", txq_id);
return rc;
error:
- iwl_hw_txq_ctx_free(priv);
+ iwl4965_hw_txq_ctx_free(priv);
error_reset:
iwl4965_kw_free(priv);
error_kw:
return rc;
}
-int iwl_hw_nic_init(struct iwl_priv *priv)
+int iwl4965_hw_nic_init(struct iwl_priv *priv)
{
int rc;
unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
u8 rev_id;
u32 val;
u8 val_link;
- iwl_power_init_handle(priv);
+ iwl4965_power_init_handle(priv);
/* nic_init */
spin_lock_irqsave(&priv->lock, flags);
return rc;
}
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_read_restricted_reg(priv, APMG_CLK_CTRL_REG);
+ iwl_read_prph(priv, APMG_CLK_CTRL_REG);
- iwl_write_restricted_reg(priv, APMG_CLK_CTRL_REG,
- APMG_CLK_VAL_DMA_CLK_RQT |
- APMG_CLK_VAL_BSM_CLK_RQT);
- iwl_read_restricted_reg(priv, APMG_CLK_CTRL_REG);
+ iwl_write_prph(priv, APMG_CLK_CTRL_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
+ iwl_read_prph(priv, APMG_CLK_CTRL_REG);
udelay(20);
- iwl_set_bits_restricted_reg(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+ iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
spin_unlock_irqrestore(&priv->lock, flags);
spin_unlock_irqrestore(&priv->lock, flags);
- /* Read the EEPROM */
- rc = iwl_eeprom_init(priv);
- if (rc)
- return rc;
-
if (priv->eeprom.calib_version < EEPROM_TX_POWER_VERSION_NEW) {
IWL_ERROR("Older EEPROM detected! Aborting.\n");
return -EINVAL;
/* set CSR_HW_CONFIG_REG for uCode use */
- iwl_set_bit(priv, CSR_SW_VER, CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R |
- CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
- CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
+ iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR49_HW_IF_CONFIG_REG_BIT_4965_R |
+ CSR49_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+ CSR49_HW_IF_CONFIG_REG_BIT_MAC_SI);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc < 0) {
spin_unlock_irqrestore(&priv->lock, flags);
IWL_DEBUG_INFO("Failed to init the card\n");
return rc;
}
- iwl_read_restricted_reg(priv, APMG_PS_CTRL_REG);
- iwl_set_bits_restricted_reg(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_RESET_REQ);
+ iwl_read_prph(priv, APMG_PS_CTRL_REG);
+ iwl_set_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
udelay(5);
- iwl_clear_bits_restricted_reg(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_RESET_REQ);
+ iwl_clear_bits_prph(priv, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_hw_card_show_info(priv);
+ iwl4965_hw_card_show_info(priv);
/* end nic_init */
/* Allocate the RX queue, or reset if it is already allocated */
if (!rxq->bd) {
- rc = iwl_rx_queue_alloc(priv);
+ rc = iwl4965_rx_queue_alloc(priv);
if (rc) {
IWL_ERROR("Unable to initialize Rx queue\n");
return -ENOMEM;
}
} else
- iwl_rx_queue_reset(priv, rxq);
+ iwl4965_rx_queue_reset(priv, rxq);
- iwl_rx_replenish(priv);
+ iwl4965_rx_replenish(priv);
iwl4965_rx_init(priv, rxq);
spin_lock_irqsave(&priv->lock, flags);
rxq->need_update = 1;
- iwl_rx_queue_update_write_ptr(priv, rxq);
+ iwl4965_rx_queue_update_write_ptr(priv, rxq);
spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Allocate and init all Tx and Command queues */
rc = iwl4965_txq_ctx_reset(priv);
if (rc)
return rc;
return 0;
}
-int iwl_hw_nic_stop_master(struct iwl_priv *priv)
+int iwl4965_hw_nic_stop_master(struct iwl_priv *priv)
{
int rc = 0;
u32 reg_val;
return rc;
}
-void iwl_hw_txq_ctx_stop(struct iwl_priv *priv)
+/**
+ * iwl4965_hw_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory
+ */
+void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv)
{
int txq_id;
unsigned long flags;
- /* reset TFD queues */
- for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++) {
+ /* Stop each Tx DMA channel, and wait for it to be idle */
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
spin_lock_irqsave(&priv->lock, flags);
- if (iwl_grab_restricted_access(priv)) {
+ if (iwl_grab_nic_access(priv)) {
spin_unlock_irqrestore(&priv->lock, flags);
continue;
}
- iwl_write_restricted(priv,
- IWL_FH_TCSR_CHNL_TX_CONFIG_REG(txq_id),
- 0x0);
- iwl_poll_restricted_bit(priv, IWL_FH_TSSR_TX_STATUS_REG,
- IWL_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE
- (txq_id), 200);
- iwl_release_restricted_access(priv);
+ iwl_write_direct32(priv,
+ IWL_FH_TCSR_CHNL_TX_CONFIG_REG(txq_id), 0x0);
+ iwl_poll_direct_bit(priv, IWL_FH_TSSR_TX_STATUS_REG,
+ IWL_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE
+ (txq_id), 200);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
}
- iwl_hw_txq_ctx_free(priv);
+ /* Deallocate memory for all Tx queues */
+ iwl4965_hw_txq_ctx_free(priv);
}
-int iwl_hw_nic_reset(struct iwl_priv *priv)
+int iwl4965_hw_nic_reset(struct iwl_priv *priv)
{
int rc = 0;
unsigned long flags;
- iwl_hw_nic_stop_master(priv);
+ iwl4965_hw_nic_stop_master(priv);
spin_lock_irqsave(&priv->lock, flags);
udelay(10);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (!rc) {
- iwl_write_restricted_reg(priv, APMG_CLK_EN_REG,
- APMG_CLK_VAL_DMA_CLK_RQT |
- APMG_CLK_VAL_BSM_CLK_RQT);
+ iwl_write_prph(priv, APMG_CLK_EN_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(10);
- iwl_set_bits_restricted_reg(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+ iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
}
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
/**
* iwl4965_bg_statistics_periodic - Timer callback to queue statistics
*
- * This callback is provided in order to queue the statistics_work
- * in work_queue context (v. softirq)
+ * This callback is provided in order to send a statistics request.
*
* This timer function is continually reset to execute within
* REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
* was received. We need to ensure we receive the statistics in order
- * to update the temperature used for calibrating the TXPOWER. However,
- * we can't send the statistics command from softirq context (which
- * is the context which timers run at) so we have to queue off the
- * statistics_work to actually send the command to the hardware.
+ * to update the temperature used for calibrating the TXPOWER.
*/
static void iwl4965_bg_statistics_periodic(unsigned long data)
{
struct iwl_priv *priv = (struct iwl_priv *)data;
- queue_work(priv->workqueue, &priv->statistics_work);
-}
-
-/**
- * iwl4965_bg_statistics_work - Send the statistics request to the hardware.
- *
- * This is queued by iwl_bg_statistics_periodic.
- */
-static void iwl4965_bg_statistics_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- statistics_work);
-
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- mutex_lock(&priv->mutex);
- iwl_send_statistics_request(priv);
- mutex_unlock(&priv->mutex);
+ iwl_send_statistics_request(priv, CMD_ASYNC);
}
#define CT_LIMIT_CONST 259
void iwl4965_rf_kill_ct_config(struct iwl_priv *priv)
{
- struct iwl_ct_kill_config cmd;
+ struct iwl4965_ct_kill_config cmd;
u32 R1, R2, R3;
u32 temp_th;
u32 crit_temperature;
unsigned long flags;
- int rc = 0;
+ int ret = 0;
spin_lock_irqsave(&priv->lock, flags);
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
crit_temperature = ((temp_th * (R3-R1))/CT_LIMIT_CONST) + R2;
cmd.critical_temperature_R = cpu_to_le32(crit_temperature);
- rc = iwl_send_cmd_pdu(priv,
- REPLY_CT_KILL_CONFIG_CMD, sizeof(cmd), &cmd);
- if (rc)
+ ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+ sizeof(cmd), &cmd);
+ if (ret)
IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n");
else
IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded\n");
}
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
/* "false alarms" are signals that our DSP tries to lock onto,
* but then determines that they are either noise, or transmissions
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_CCK * rx_enable_time;
u32 min_false_alarms = MIN_FA_CCK * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
data = &(priv->sensitivity_data);
* This is background noise, which may include transmissions from other
* networks, measured during silence before our network's beacon */
silence_rssi_a = (u8)((rx_info->beacon_silence_rssi_a &
- ALL_BAND_FILTER)>>8);
+ ALL_BAND_FILTER) >> 8);
silence_rssi_b = (u8)((rx_info->beacon_silence_rssi_b &
- ALL_BAND_FILTER)>>8);
+ ALL_BAND_FILTER) >> 8);
silence_rssi_c = (u8)((rx_info->beacon_silence_rssi_c &
- ALL_BAND_FILTER)>>8);
+ ALL_BAND_FILTER) >> 8);
val = max(silence_rssi_b, silence_rssi_c);
max_silence_rssi = max(silence_rssi_a, (u8) val);
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time;
u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
data = &(priv->sensitivity_data);
return 0;
}
-static int iwl_sensitivity_callback(struct iwl_priv *priv,
+static int iwl4965_sensitivity_callback(struct iwl_priv *priv,
struct iwl_cmd *cmd, struct sk_buff *skb)
{
/* We didn't cache the SKB; let the caller free it */
/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
{
- int rc = 0;
- struct iwl_sensitivity_cmd cmd ;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_cmd cmd ;
+ struct iwl4965_sensitivity_data *data = NULL;
struct iwl_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
- .len = sizeof(struct iwl_sensitivity_cmd),
+ .len = sizeof(struct iwl4965_sensitivity_cmd),
.meta.flags = flags,
.data = &cmd,
};
+ int ret;
data = &(priv->sensitivity_data);
data->auto_corr_cck, data->auto_corr_cck_mrc,
data->nrg_th_cck);
+ /* Update uCode's "work" table, and copy it to DSP */
cmd.control = SENSITIVITY_CMD_CONTROL_WORK_TABLE;
if (flags & CMD_ASYNC)
- cmd_out.meta.u.callback = iwl_sensitivity_callback;
+ cmd_out.meta.u.callback = iwl4965_sensitivity_callback;
/* Don't send command to uCode if nothing has changed */
if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]),
memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
sizeof(u16)*HD_TABLE_SIZE);
- rc = iwl_send_cmd(priv, &cmd_out);
- if (!rc) {
- IWL_DEBUG_CALIB("SENSITIVITY_CMD succeeded\n");
- return rc;
- }
+ ret = iwl_send_cmd(priv, &cmd_out);
+ if (ret)
+ IWL_ERROR("SENSITIVITY_CMD failed\n");
- return 0;
+ return ret;
}
void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags, u8 force)
{
- int rc = 0;
+ struct iwl4965_sensitivity_data *data = NULL;
int i;
- struct iwl_sensitivity_data *data = NULL;
+ int ret = 0;
IWL_DEBUG_CALIB("Start iwl4965_init_sensitivity\n");
/* Clear driver's sensitivity algo data */
data = &(priv->sensitivity_data);
- memset(data, 0, sizeof(struct iwl_sensitivity_data));
+ memset(data, 0, sizeof(struct iwl4965_sensitivity_data));
data->num_in_cck_no_fa = 0;
data->nrg_curr_state = IWL_FA_TOO_MANY;
memset(&(priv->sensitivity_tbl[0]), 0,
sizeof(u16)*HD_TABLE_SIZE);
- rc |= iwl4965_sensitivity_write(priv, flags);
- IWL_DEBUG_CALIB("<<return 0x%X\n", rc);
+ ret |= iwl4965_sensitivity_write(priv, flags);
+ IWL_DEBUG_CALIB("<<return 0x%X\n", ret);
return;
}
* ... once chain noise is calibrated the first time, it's good forever. */
void iwl4965_chain_noise_reset(struct iwl_priv *priv)
{
- struct iwl_chain_noise_data *data = NULL;
- int rc = 0;
+ struct iwl4965_chain_noise_data *data = NULL;
data = &(priv->chain_noise_data);
if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
- struct iwl_calibration_cmd cmd;
+ struct iwl4965_calibration_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD;
cmd.diff_gain_a = 0;
cmd.diff_gain_b = 0;
cmd.diff_gain_c = 0;
- rc = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
- sizeof(cmd), &cmd);
+ iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
+ sizeof(cmd), &cmd, NULL);
msleep(4);
data->state = IWL_CHAIN_NOISE_ACCUMULATE;
IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
* 2) Differential rx gain settings to balance the 3 receivers.
*/
static void iwl4965_noise_calibration(struct iwl_priv *priv,
- struct iwl_notif_statistics *stat_resp)
+ struct iwl4965_notif_statistics *stat_resp)
{
- struct iwl_chain_noise_data *data = NULL;
- int rc = 0;
+ struct iwl4965_chain_noise_data *data = NULL;
+ int ret = 0;
u32 chain_noise_a;
u32 chain_noise_b;
/* Differential gain gets sent to uCode only once */
if (!data->radio_write) {
- struct iwl_calibration_cmd cmd;
+ struct iwl4965_calibration_cmd cmd;
data->radio_write = 1;
memset(&cmd, 0, sizeof(cmd));
cmd.diff_gain_a = data->delta_gain_code[0];
cmd.diff_gain_b = data->delta_gain_code[1];
cmd.diff_gain_c = data->delta_gain_code[2];
- rc = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+ ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
sizeof(cmd), &cmd);
- if (rc)
+ if (ret)
IWL_DEBUG_CALIB("fail sending cmd "
"REPLY_PHY_CALIBRATION_CMD \n");
}
static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
- struct iwl_notif_statistics *resp)
+ struct iwl4965_notif_statistics *resp)
{
- int rc = 0;
u32 rx_enable_time;
u32 fa_cck;
u32 fa_ofdm;
u32 bad_plcp_ofdm;
u32 norm_fa_ofdm;
u32 norm_fa_cck;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
struct statistics_rx_non_phy *rx_info = &(resp->rx.general);
struct statistics_rx *statistics = &(resp->rx);
unsigned long flags;
struct statistics_general_data statis;
+ int ret;
data = &(priv->sensitivity_data);
iwl4965_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time);
iwl4965_sens_energy_cck(priv, norm_fa_cck, rx_enable_time, &statis);
- rc |= iwl4965_sensitivity_write(priv, CMD_ASYNC);
+ ret = iwl4965_sensitivity_write(priv, CMD_ASYNC);
return;
}
mutex_unlock(&priv->mutex);
return;
}
-#endif /*CONFIG_IWLWIFI_SENSITIVITY*/
+#endif /*CONFIG_IWL4965_SENSITIVITY*/
static void iwl4965_bg_txpower_work(struct work_struct *work)
{
/* Regardless of if we are assocaited, we must reconfigure the
* TX power since frames can be sent on non-radar channels while
* not associated */
- iwl_hw_reg_send_txpower(priv);
+ iwl4965_hw_reg_send_txpower(priv);
/* Update last_temperature to keep is_calib_needed from running
* when it isn't needed... */
*/
static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
{
- iwl_write_restricted(priv, HBUS_TARG_WRPTR,
+ iwl_write_direct32(priv, HBUS_TARG_WRPTR,
(index & 0xff) | (txq_id << 8));
- iwl_write_restricted_reg(priv, SCD_QUEUE_RDPTR(txq_id), index);
+ iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index);
}
-/*
- * Acquire priv->lock before calling this function !
+/**
+ * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
+ * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
+ * @scd_retry: (1) Indicates queue will be used in aggregation mode
+ *
+ * NOTE: Acquire priv->lock before calling this function !
*/
static void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
+ struct iwl4965_tx_queue *txq,
int tx_fifo_id, int scd_retry)
{
int txq_id = txq->q.id;
+
+ /* Find out whether to activate Tx queue */
int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0;
- iwl_write_restricted_reg(priv, SCD_QUEUE_STATUS_BITS(txq_id),
+ /* Set up and activate */
+ iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
(active << SCD_QUEUE_STTS_REG_POS_ACTIVE) |
(tx_fifo_id << SCD_QUEUE_STTS_REG_POS_TXF) |
(scd_retry << SCD_QUEUE_STTS_REG_POS_WSL) |
txq->sched_retry = scd_retry;
IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
- active ? "Activete" : "Deactivate",
+ active ? "Activate" : "Deactivate",
scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
}
u32 a;
int i = 0;
unsigned long flags;
- int rc;
+ int ret;
spin_lock_irqsave(&priv->lock, flags);
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
memset(&(priv->sensitivity_data), 0,
- sizeof(struct iwl_sensitivity_data));
+ sizeof(struct iwl4965_sensitivity_data));
memset(&(priv->chain_noise_data), 0,
- sizeof(struct iwl_chain_noise_data));
+ sizeof(struct iwl4965_chain_noise_data));
for (i = 0; i < NUM_RX_CHAINS; i++)
priv->chain_noise_data.delta_gain_code[i] =
CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
-#endif /* CONFIG_IWLWIFI_SENSITIVITY*/
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
+#endif /* CONFIG_IWL4965_SENSITIVITY*/
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
- priv->scd_base_addr = iwl_read_restricted_reg(priv, SCD_SRAM_BASE_ADDR);
+ /* Clear 4965's internal Tx Scheduler data base */
+ priv->scd_base_addr = iwl_read_prph(priv, IWL49_SCD_SRAM_BASE_ADDR);
a = priv->scd_base_addr + SCD_CONTEXT_DATA_OFFSET;
for (; a < priv->scd_base_addr + SCD_TX_STTS_BITMAP_OFFSET; a += 4)
- iwl_write_restricted_mem(priv, a, 0);
+ iwl_write_targ_mem(priv, a, 0);
for (; a < priv->scd_base_addr + SCD_TRANSLATE_TBL_OFFSET; a += 4)
- iwl_write_restricted_mem(priv, a, 0);
- for (; a < sizeof(u16) * priv->hw_setting.max_txq_num; a += 4)
- iwl_write_restricted_mem(priv, a, 0);
-
- iwl_write_restricted_reg(priv, SCD_DRAM_BASE_ADDR,
- (priv->hw_setting.shared_phys +
- offsetof(struct iwl_shared, queues_byte_cnt_tbls)) >> 10);
- iwl_write_restricted_reg(priv, SCD_QUEUECHAIN_SEL, 0);
-
- /* initiate the queues */
- for (i = 0; i < priv->hw_setting.max_txq_num; i++) {
- iwl_write_restricted_reg(priv, SCD_QUEUE_RDPTR(i), 0);
- iwl_write_restricted(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
- iwl_write_restricted_mem(priv, priv->scd_base_addr +
+ iwl_write_targ_mem(priv, a, 0);
+ for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
+ iwl_write_targ_mem(priv, a, 0);
+
+ /* Tel 4965 where to find Tx byte count tables */
+ iwl_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR,
+ (priv->shared_phys +
+ offsetof(struct iwl4965_shared, queues_byte_cnt_tbls)) >> 10);
+
+ /* Disable chain mode for all queues */
+ iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
+
+ /* Initialize each Tx queue (including the command queue) */
+ for (i = 0; i < priv->hw_params.max_txq_num; i++) {
+
+ /* TFD circular buffer read/write indexes */
+ iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(i), 0);
+ iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
+
+ /* Max Tx Window size for Scheduler-ACK mode */
+ iwl_write_targ_mem(priv, priv->scd_base_addr +
SCD_CONTEXT_QUEUE_OFFSET(i),
(SCD_WIN_SIZE <<
SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
- iwl_write_restricted_mem(priv, priv->scd_base_addr +
+
+ /* Frame limit */
+ iwl_write_targ_mem(priv, priv->scd_base_addr +
SCD_CONTEXT_QUEUE_OFFSET(i) +
sizeof(u32),
(SCD_FRAME_LIMIT <<
SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
}
- iwl_write_restricted_reg(priv, SCD_INTERRUPT_MASK,
- (1 << priv->hw_setting.max_txq_num) - 1);
+ iwl_write_prph(priv, IWL49_SCD_INTERRUPT_MASK,
+ (1 << priv->hw_params.max_txq_num) - 1);
- iwl_write_restricted_reg(priv, SCD_TXFACT,
+ /* Activate all Tx DMA/FIFO channels */
+ iwl_write_prph(priv, IWL49_SCD_TXFACT,
SCD_TXFACT_REG_TXFIFO_MASK(0, 7));
iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
- /* map qos queues to fifos one-to-one */
+
+ /* Map each Tx/cmd queue to its corresponding fifo */
for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) {
int ac = default_queue_to_tx_fifo[i];
iwl4965_txq_ctx_activate(priv, i);
iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
}
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
+ /* Ask for statistics now, the uCode will send statistics notification
+ * periodically after association */
+ iwl_send_statistics_request(priv, CMD_ASYNC);
+ return ret;
}
-int iwl_hw_set_hw_setting(struct iwl_priv *priv)
+/**
+ * iwl4965_hw_set_hw_params
+ *
+ * Called when initializing driver
+ */
+int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
{
- priv->hw_setting.shared_virt =
- pci_alloc_consistent(priv->pci_dev,
- sizeof(struct iwl_shared),
- &priv->hw_setting.shared_phys);
- if (!priv->hw_setting.shared_virt)
- return -1;
+ if ((priv->cfg->mod_params->num_of_queues > IWL4965_MAX_NUM_QUEUES) ||
+ (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
+ IWL_ERROR("invalid queues_num, should be between %d and %d\n",
+ IWL_MIN_NUM_QUEUES, IWL4965_MAX_NUM_QUEUES);
+ return -EINVAL;
+ }
- memset(priv->hw_setting.shared_virt, 0, sizeof(struct iwl_shared));
+ priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
+ priv->hw_params.tx_cmd_len = sizeof(struct iwl4965_tx_cmd);
+ priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
+ priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ if (priv->cfg->mod_params->amsdu_size_8K)
+ priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
+ else
+ priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
+ priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
+ priv->hw_params.max_stations = IWL4965_STATION_COUNT;
+ priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID;
- priv->hw_setting.max_txq_num = iwl_param_queues_num;
- priv->hw_setting.ac_queue_count = AC_NUM;
- priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd);
- priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE;
- priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ priv->hw_params.tx_chains_num = 2;
+ priv->hw_params.rx_chains_num = 2;
+ priv->hw_params.valid_tx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
+ priv->hw_params.valid_rx_ant = (IWL_ANTENNA_MAIN | IWL_ANTENNA_AUX);
- priv->hw_setting.max_stations = IWL4965_STATION_COUNT;
- priv->hw_setting.bcast_sta_id = IWL4965_BROADCAST_ID;
return 0;
}
/**
- * iwl_hw_txq_ctx_free - Free TXQ Context
+ * iwl4965_hw_txq_ctx_free - Free TXQ Context
*
* Destroy all TX DMA queues and structures
*/
-void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
+void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv)
{
int txq_id;
/* Tx queues */
- for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++)
- iwl_tx_queue_free(priv, &priv->txq[txq_id]);
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
+ iwl4965_tx_queue_free(priv, &priv->txq[txq_id]);
+ /* Keep-warm buffer */
iwl4965_kw_free(priv);
}
/**
- * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
+ * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
*
- * Does NOT advance any indexes
+ * Does NOT advance any TFD circular buffer read/write indexes
+ * Does NOT free the TFD itself (which is within circular buffer)
*/
-int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq)
{
- struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
+ struct iwl4965_tfd_frame *bd_tmp = (struct iwl4965_tfd_frame *)&txq->bd[0];
+ struct iwl4965_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter = 0;
int index, is_odd;
- /* classify bd */
+ /* Host command buffers stay mapped in memory, nothing to clean */
if (txq->q.id == IWL_CMD_QUEUE_NUM)
- /* nothing to cleanup after for host commands */
return 0;
- /* sanity check */
+ /* Sanity check on number of chunks */
counter = IWL_GET_BITS(*bd, num_tbs);
if (counter > MAX_NUM_OF_TBS) {
IWL_ERROR("Too many chunks: %i\n", counter);
return 0;
}
- /* unmap chunks if any */
-
+ /* Unmap chunks, if any.
+ * TFD info for odd chunks is different format than for even chunks. */
for (i = 0; i < counter; i++) {
index = i / 2;
is_odd = i & 0x1;
IWL_GET_BITS(bd->pa[index], tb1_len),
PCI_DMA_TODEVICE);
+ /* Free SKB, if any, for this chunk */
if (txq->txb[txq->q.read_ptr].skb[i]) {
struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[i];
return 0;
}
-int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
+int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
{
- IWL_ERROR("TODO: Implement iwl_hw_reg_set_txpower!\n");
+ IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n");
return -EINVAL;
}
return 1;
}
+/**
+ * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower
+ *
+ * Determines power supply voltage compensation for txpower calculations.
+ * Returns number of 1/2-dB steps to subtract from gain table index,
+ * to compensate for difference between power supply voltage during
+ * factory measurements, vs. current power supply voltage.
+ *
+ * Voltage indication is higher for lower voltage.
+ * Lower voltage requires more gain (lower gain table index).
+ */
static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage,
s32 current_voltage)
{
}
static const struct iwl_channel_info *
-iwl4965_get_channel_txpower_info(struct iwl_priv *priv, u8 phymode, u16 channel)
+iwl4965_get_channel_txpower_info(struct iwl_priv *priv,
+ enum ieee80211_band band, u16 channel)
{
const struct iwl_channel_info *ch_info;
- ch_info = iwl_get_channel_info(priv, phymode, channel);
+ ch_info = iwl_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info))
return NULL;
}
}
+/**
+ * iwl4965_interpolate_chan - Interpolate factory measurements for one channel
+ *
+ * Interpolates factory measurements from the two sample channels within a
+ * sub-band, to apply to channel of interest. Interpolation is proportional to
+ * differences in channel frequencies, which is proportional to differences
+ * in channel number.
+ */
static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel,
- struct iwl_eeprom_calib_ch_info *chan_info)
+ struct iwl4965_eeprom_calib_ch_info *chan_info)
{
s32 s = -1;
u32 c;
u32 m;
- const struct iwl_eeprom_calib_measure *m1;
- const struct iwl_eeprom_calib_measure *m2;
- struct iwl_eeprom_calib_measure *omeas;
+ const struct iwl4965_eeprom_calib_measure *m1;
+ const struct iwl4965_eeprom_calib_measure *m2;
+ struct iwl4965_eeprom_calib_measure *omeas;
u32 ch_i1;
u32 ch_i2;
/* Thermal compensation values for txpower for various frequency ranges ...
* ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */
-static struct iwl_txpower_comp_entry {
+static struct iwl4965_txpower_comp_entry {
s32 degrees_per_05db_a;
s32 degrees_per_05db_a_denom;
} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = {
static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
u8 is_fat, u8 ctrl_chan_high,
- struct iwl_tx_power_db *tx_power_tbl)
+ struct iwl4965_tx_power_db *tx_power_tbl)
{
u8 saturation_power;
s32 target_power;
int i;
int c;
const struct iwl_channel_info *ch_info = NULL;
- struct iwl_eeprom_calib_ch_info ch_eeprom_info;
- const struct iwl_eeprom_calib_measure *measurement;
+ struct iwl4965_eeprom_calib_ch_info ch_eeprom_info;
+ const struct iwl4965_eeprom_calib_measure *measurement;
s16 voltage;
s32 init_voltage;
s32 voltage_compensation;
/* Get current (RXON) channel, band, width */
ch_info =
- iwl4965_get_channel_txpower_info(priv, priv->phymode, channel);
+ iwl4965_get_channel_txpower_info(priv, priv->band, channel);
IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band,
is_fat);
/* for each of 33 bit-rates (including 1 for CCK) */
for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) {
u8 is_mimo_rate;
- union iwl_tx_power_dual_stream tx_power;
+ union iwl4965_tx_power_dual_stream tx_power;
/* for mimo, reduce each chain's txpower by half
* (3dB, 6 steps), so total output power is regulatory
}
/**
- * iwl_hw_reg_send_txpower - Configure the TXPOWER level user limit
+ * iwl4965_hw_reg_send_txpower - Configure the TXPOWER level user limit
*
* Uses the active RXON for channel, band, and characteristics (fat, high)
* The power limit is taken from priv->user_txpower_limit.
*/
-int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
+int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv)
{
- struct iwl_txpowertable_cmd cmd = { 0 };
- int rc = 0;
+ struct iwl4965_txpowertable_cmd cmd = { 0 };
+ int ret;
u8 band = 0;
u8 is_fat = 0;
u8 ctrl_chan_high = 0;
return -EAGAIN;
}
- band = ((priv->phymode == MODE_IEEE80211B) ||
- (priv->phymode == MODE_IEEE80211G));
+ band = priv->band == IEEE80211_BAND_2GHZ;
is_fat = is_fat_channel(priv->active_rxon.flags);
cmd.band = band;
cmd.channel = priv->active_rxon.channel;
- rc = iwl4965_fill_txpower_tbl(priv, band,
+ ret = iwl4965_fill_txpower_tbl(priv, band,
le16_to_cpu(priv->active_rxon.channel),
is_fat, ctrl_chan_high, &cmd.tx_power);
- if (rc)
- return rc;
+ if (ret)
+ goto out;
- rc = iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
- return rc;
+ ret = iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
+
+out:
+ return ret;
+}
+
+static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
+{
+ int ret = 0;
+ struct iwl4965_rxon_assoc_cmd rxon_assoc;
+ const struct iwl4965_rxon_cmd *rxon1 = &priv->staging_rxon;
+ const struct iwl4965_rxon_cmd *rxon2 = &priv->active_rxon;
+
+ if ((rxon1->flags == rxon2->flags) &&
+ (rxon1->filter_flags == rxon2->filter_flags) &&
+ (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
+ (rxon1->ofdm_ht_single_stream_basic_rates ==
+ rxon2->ofdm_ht_single_stream_basic_rates) &&
+ (rxon1->ofdm_ht_dual_stream_basic_rates ==
+ rxon2->ofdm_ht_dual_stream_basic_rates) &&
+ (rxon1->rx_chain == rxon2->rx_chain) &&
+ (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
+ IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
+ return 0;
+ }
+
+ rxon_assoc.flags = priv->staging_rxon.flags;
+ rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
+ rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
+ rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
+ rxon_assoc.reserved = 0;
+ rxon_assoc.ofdm_ht_single_stream_basic_rates =
+ priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
+ rxon_assoc.ofdm_ht_dual_stream_basic_rates =
+ priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
+ rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
+
+ ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
+ sizeof(rxon_assoc), &rxon_assoc, NULL);
+ if (ret)
+ return ret;
+
+ return ret;
}
-int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel)
+
+int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
{
int rc;
u8 band = 0;
u8 is_fat = 0;
u8 ctrl_chan_high = 0;
- struct iwl_channel_switch_cmd cmd = { 0 };
+ struct iwl4965_channel_switch_cmd cmd = { 0 };
const struct iwl_channel_info *ch_info;
- band = ((priv->phymode == MODE_IEEE80211B) ||
- (priv->phymode == MODE_IEEE80211G));
+ band = priv->band == IEEE80211_BAND_2GHZ;
- ch_info = iwl_get_channel_info(priv, priv->phymode, channel);
+ ch_info = iwl_get_channel_info(priv, priv->band, channel);
is_fat = is_fat_channel(priv->staging_rxon.flags);
#define RTS_HCCA_RETRY_LIMIT 3
#define RTS_DFAULT_RETRY_LIMIT 60
-void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
+void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
struct iwl_cmd *cmd,
struct ieee80211_tx_control *ctrl,
struct ieee80211_hdr *hdr, int sta_id,
int is_hcca)
{
- u8 rate;
+ struct iwl4965_tx_cmd *tx = &cmd->cmd.tx;
u8 rts_retry_limit = 0;
u8 data_retry_limit = 0;
- __le32 tx_flags;
u16 fc = le16_to_cpu(hdr->frame_control);
+ u8 rate_plcp;
+ u16 rate_flags = 0;
+ int rate_idx = min(ctrl->tx_rate->hw_value & 0xffff, IWL_RATE_COUNT - 1);
- tx_flags = cmd->cmd.tx.tx_flags;
-
- rate = iwl_rates[ctrl->tx_rate].plcp;
+ rate_plcp = iwl4965_rates[rate_idx].plcp;
rts_retry_limit = (is_hcca) ?
RTS_HCCA_RETRY_LIMIT : RTS_DFAULT_RETRY_LIMIT;
+ if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+
if (ieee80211_is_probe_response(fc)) {
data_retry_limit = 3;
if (data_retry_limit < rts_retry_limit)
if (priv->data_retry_limit != -1)
data_retry_limit = priv->data_retry_limit;
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+
+ if (ieee80211_is_data(fc)) {
+ tx->initial_rate_index = 0;
+ tx->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
+ } else {
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_AUTH:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_ASSOC_REQ:
case IEEE80211_STYPE_REASSOC_REQ:
- if (tx_flags & TX_CMD_FLG_RTS_MSK) {
- tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- tx_flags |= TX_CMD_FLG_CTS_MSK;
+ if (tx->tx_flags & TX_CMD_FLG_RTS_MSK) {
+ tx->tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ tx->tx_flags |= TX_CMD_FLG_CTS_MSK;
}
break;
default:
break;
}
+
+ /* Alternate between antenna A and B for successive frames */
+ if (priv->use_ant_b_for_management_frame) {
+ priv->use_ant_b_for_management_frame = 0;
+ rate_flags |= RATE_MCS_ANT_B_MSK;
+ } else {
+ priv->use_ant_b_for_management_frame = 1;
+ rate_flags |= RATE_MCS_ANT_A_MSK;
+ }
}
- cmd->cmd.tx.rts_retry_limit = rts_retry_limit;
- cmd->cmd.tx.data_retry_limit = data_retry_limit;
- cmd->cmd.tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate, 0);
- cmd->cmd.tx.tx_flags = tx_flags;
+ tx->rts_retry_limit = rts_retry_limit;
+ tx->data_retry_limit = data_retry_limit;
+ tx->rate_n_flags = iwl4965_hw_set_rate_n_flags(rate_plcp, rate_flags);
}
-int iwl_hw_get_rx_read(struct iwl_priv *priv)
+int iwl4965_hw_get_rx_read(struct iwl_priv *priv)
{
- struct iwl_shared *shared_data = priv->hw_setting.shared_virt;
-
- return IWL_GET_BITS(*shared_data, rb_closed_stts_rb_num);
+ struct iwl4965_shared *s = priv->shared_virt;
+ return le32_to_cpu(s->rb_closed) & 0xFFF;
}
-int iwl_hw_get_temperature(struct iwl_priv *priv)
+int iwl4965_hw_get_temperature(struct iwl_priv *priv)
{
return priv->temperature;
}
-unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u8 rate)
+unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
+ struct iwl4965_frame *frame, u8 rate)
{
- struct iwl_tx_beacon_cmd *tx_beacon_cmd;
+ struct iwl4965_tx_beacon_cmd *tx_beacon_cmd;
unsigned int frame_size;
tx_beacon_cmd = &frame->u.beacon;
memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.sta_id = IWL4965_BROADCAST_ID;
+ tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- frame_size = iwl_fill_beacon_frame(priv,
+ frame_size = iwl4965_fill_beacon_frame(priv,
tx_beacon_cmd->frame,
- BROADCAST_ADDR,
+ iwl4965_broadcast_addr,
sizeof(frame->u) - sizeof(*tx_beacon_cmd));
BUG_ON(frame_size > MAX_MPDU_SIZE);
if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
tx_beacon_cmd->tx.rate_n_flags =
- iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
+ iwl4965_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
else
tx_beacon_cmd->tx.rate_n_flags =
- iwl_hw_set_rate_n_flags(rate, 0);
+ iwl4965_hw_set_rate_n_flags(rate, 0);
tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK);
return (sizeof(*tx_beacon_cmd) + frame_size);
}
-int iwl_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+/*
+ * Tell 4965 where to find circular buffer of Tx Frame Descriptors for
+ * given Tx queue, and enable the DMA channel used for that queue.
+ *
+ * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
+ * channels supported in hardware.
+ */
+int iwl4965_hw_tx_queue_init(struct iwl_priv *priv, struct iwl4965_tx_queue *txq)
{
int rc;
unsigned long flags;
int txq_id = txq->q.id;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_MEM_CBBC_QUEUE(txq_id),
+ /* Circular buffer (TFD queue in DRAM) physical base address */
+ iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
txq->q.dma_addr >> 8);
- iwl_write_restricted(
+
+ /* Enable DMA channel, using same id as for TFD queue */
+ iwl_write_direct32(
priv, IWL_FH_TCSR_CHNL_TX_CONFIG_REG(txq_id),
IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-static inline u8 iwl4965_get_dma_hi_address(dma_addr_t addr)
-{
- return sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0;
-}
-
-int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
+int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *ptr,
dma_addr_t addr, u16 len)
{
int index, is_odd;
- struct iwl_tfd_frame *tfd = ptr;
+ struct iwl4965_tfd_frame *tfd = ptr;
u32 num_tbs = IWL_GET_BITS(*tfd, num_tbs);
+ /* Each TFD can point to a maximum 20 Tx buffers */
if ((num_tbs >= MAX_NUM_OF_TBS) || (num_tbs < 0)) {
IWL_ERROR("Error can not send more than %d chunks\n",
MAX_NUM_OF_TBS);
if (!is_odd) {
tfd->pa[index].tb1_addr = cpu_to_le32(addr);
IWL_SET_BITS(tfd->pa[index], tb1_addr_hi,
- iwl4965_get_dma_hi_address(addr));
+ iwl_get_dma_hi_address(addr));
IWL_SET_BITS(tfd->pa[index], tb1_len, len);
} else {
IWL_SET_BITS(tfd->pa[index], tb2_addr_lo16,
return 0;
}
-void iwl_hw_card_show_info(struct iwl_priv *priv)
+static void iwl4965_hw_card_show_info(struct iwl_priv *priv)
{
u16 hw_version = priv->eeprom.board_revision_4965;
#define IWL_TX_CRC_SIZE 4
#define IWL_TX_DELIMITER_SIZE 4
-int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, u16 byte_cnt)
+/**
+ * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
+ */
+static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
+ struct iwl4965_tx_queue *txq,
+ u16 byte_cnt)
{
int len;
int txq_id = txq->q.id;
- struct iwl_shared *shared_data = priv->hw_setting.shared_virt;
-
- if (txq->need_update == 0)
- return 0;
+ struct iwl4965_shared *shared_data = priv->shared_virt;
len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
+ /* Set up byte count within first 256 entries */
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
tfd_offset[txq->q.write_ptr], byte_cnt, len);
+ /* If within first 64 entries, duplicate at end */
if (txq->q.write_ptr < IWL4965_MAX_WIN_SIZE)
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
tfd_offset[IWL4965_QUEUE_SIZE + txq->q.write_ptr],
byte_cnt, len);
-
- return 0;
}
-/* Set up Rx receiver/antenna/chain usage in "staging" RXON image.
- * This should not be used for scan command ... it puts data in wrong place. */
+/**
+ * iwl4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
+ *
+ * Selects how many and which Rx receivers/antennas/chains to use.
+ * This should not be used for scan command ... it puts data in wrong place.
+ */
void iwl4965_set_rxon_chain(struct iwl_priv *priv)
{
u8 is_single = is_single_stream(priv);
IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
}
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
-/*
- get the traffic load value for tid
-*/
-static u32 iwl4965_tl_get_load(struct iwl_priv *priv, u8 tid)
-{
- u32 load = 0;
- u32 current_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- unsigned long flags;
- struct iwl_traffic_load *tid_ptr = NULL;
-
- if (tid >= TID_MAX_LOAD_COUNT)
- return 0;
-
- tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
-
- current_time -= current_time % TID_ROUND_VALUE;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!(tid_ptr->queue_count))
- goto out;
-
- time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- if (index >= TID_QUEUE_MAX_SIZE) {
- u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
-
- while (tid_ptr->queue_count &&
- (tid_ptr->time_stamp < oldest_time)) {
- tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
- tid_ptr->packet_count[tid_ptr->head] = 0;
- tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
- tid_ptr->queue_count--;
- tid_ptr->head++;
- if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
- tid_ptr->head = 0;
- }
- }
- load = tid_ptr->total;
-
- out:
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return load;
-}
-
-/*
- increment traffic load value for tid and also remove
- any old values if passed the certian time period
-*/
-static void iwl4965_tl_add_packet(struct iwl_priv *priv, u8 tid)
-{
- u32 current_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- unsigned long flags;
- struct iwl_traffic_load *tid_ptr = NULL;
-
- if (tid >= TID_MAX_LOAD_COUNT)
- return;
-
- tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
-
- current_time -= current_time % TID_ROUND_VALUE;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!(tid_ptr->queue_count)) {
- tid_ptr->total = 1;
- tid_ptr->time_stamp = current_time;
- tid_ptr->queue_count = 1;
- tid_ptr->head = 0;
- tid_ptr->packet_count[0] = 1;
- goto out;
- }
-
- time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- if (index >= TID_QUEUE_MAX_SIZE) {
- u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
-
- while (tid_ptr->queue_count &&
- (tid_ptr->time_stamp < oldest_time)) {
- tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
- tid_ptr->packet_count[tid_ptr->head] = 0;
- tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
- tid_ptr->queue_count--;
- tid_ptr->head++;
- if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
- tid_ptr->head = 0;
- }
- }
-
- index = (tid_ptr->head + index) % TID_QUEUE_MAX_SIZE;
- tid_ptr->packet_count[index] = tid_ptr->packet_count[index] + 1;
- tid_ptr->total = tid_ptr->total + 1;
-
- if ((index + 1) > tid_ptr->queue_count)
- tid_ptr->queue_count = index + 1;
- out:
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-
-}
-
-#define MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS 7
-enum HT_STATUS {
- BA_STATUS_FAILURE = 0,
- BA_STATUS_INITIATOR_DELBA,
- BA_STATUS_RECIPIENT_DELBA,
- BA_STATUS_RENEW_ADDBA_REQUEST,
- BA_STATUS_ACTIVE,
-};
-
-static u8 iwl4964_tl_ba_avail(struct iwl_priv *priv)
-{
- int i;
- struct iwl_lq_mngr *lq;
- u8 count = 0;
- u16 msk;
-
- lq = (struct iwl_lq_mngr *)&(priv->lq_mngr);
- for (i = 0; i < TID_MAX_LOAD_COUNT ; i++) {
- msk = 1 << i;
- if ((lq->agg_ctrl.granted_ba & msk) ||
- (lq->agg_ctrl.wait_for_agg_status & msk))
- count++;
- }
-
- if (count < MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS)
- return 1;
-
- return 0;
-}
-
-static void iwl4965_ba_status(struct iwl_priv *priv,
- u8 tid, enum HT_STATUS status);
-
-static int iwl4965_perform_addba(struct iwl_priv *priv, u8 tid, u32 length,
- u32 ba_timeout)
-{
- int rc;
-
- rc = ieee80211_start_BA_session(priv->hw, priv->bssid, tid);
- if (rc)
- iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
-
- return rc;
-}
-
-static int iwl4965_perform_delba(struct iwl_priv *priv, u8 tid)
-{
- int rc;
-
- rc = ieee80211_stop_BA_session(priv->hw, priv->bssid, tid);
- if (rc)
- iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
-
- return rc;
-}
-
-static void iwl4965_turn_on_agg_for_tid(struct iwl_priv *priv,
- struct iwl_lq_mngr *lq,
- u8 auto_agg, u8 tid)
-{
- u32 tid_msk = (1 << tid);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
-/*
- if ((auto_agg) && (!lq->enable_counter)){
- lq->agg_ctrl.next_retry = 0;
- lq->agg_ctrl.tid_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return;
- }
-*/
- if (!(lq->agg_ctrl.granted_ba & tid_msk) &&
- (lq->agg_ctrl.requested_ba & tid_msk)) {
- u8 available_queues;
- u32 load;
-
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- available_queues = iwl4964_tl_ba_avail(priv);
- load = iwl4965_tl_get_load(priv, tid);
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (!available_queues) {
- if (auto_agg)
- lq->agg_ctrl.tid_retry |= tid_msk;
- else {
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
- }
- } else if ((auto_agg) &&
- ((load <= lq->agg_ctrl.tid_traffic_load_threshold) ||
- ((lq->agg_ctrl.wait_for_agg_status & tid_msk))))
- lq->agg_ctrl.tid_retry |= tid_msk;
- else {
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_addba(priv, tid, 0x40,
- lq->agg_ctrl.ba_timeout);
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- }
- }
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-}
-
-static void iwl4965_turn_on_agg(struct iwl_priv *priv, u8 tid)
-{
- struct iwl_lq_mngr *lq;
- unsigned long flags;
-
- lq = (struct iwl_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid < TID_MAX_LOAD_COUNT))
- iwl4965_turn_on_agg_for_tid(priv, lq, lq->agg_ctrl.auto_agg,
- tid);
- else if (tid == TID_ALL_SPECIFIED) {
- if (lq->agg_ctrl.requested_ba) {
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
- iwl4965_turn_on_agg_for_tid(priv, lq,
- lq->agg_ctrl.auto_agg, tid);
- } else {
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- lq->agg_ctrl.tid_retry = 0;
- lq->agg_ctrl.next_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- }
- }
-
-}
-
-void iwl4965_turn_off_agg(struct iwl_priv *priv, u8 tid)
-{
- u32 tid_msk;
- struct iwl_lq_mngr *lq;
- unsigned long flags;
-
- lq = (struct iwl_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid < TID_MAX_LOAD_COUNT)) {
- tid_msk = 1 << tid;
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_delba(priv, tid);
- } else if (tid == TID_ALL_SPECIFIED) {
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
- tid_msk = 1 << tid;
- lq->agg_ctrl.wait_for_agg_status |= tid_msk;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- iwl4965_perform_delba(priv, tid);
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- }
- lq->agg_ctrl.requested_ba = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- }
-}
-
-static void iwl4965_ba_status(struct iwl_priv *priv,
- u8 tid, enum HT_STATUS status)
-{
- struct iwl_lq_mngr *lq;
- u32 tid_msk = (1 << tid);
- unsigned long flags;
-
- lq = (struct iwl_lq_mngr *)&(priv->lq_mngr);
-
- if ((tid >= TID_MAX_LOAD_COUNT))
- goto out;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- switch (status) {
- case BA_STATUS_ACTIVE:
- if (!(lq->agg_ctrl.granted_ba & tid_msk))
- lq->agg_ctrl.granted_ba |= tid_msk;
- break;
- default:
- if ((lq->agg_ctrl.granted_ba & tid_msk))
- lq->agg_ctrl.granted_ba &= ~tid_msk;
- break;
- }
-
- lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
- if (status != BA_STATUS_ACTIVE) {
- if (lq->agg_ctrl.auto_agg) {
- lq->agg_ctrl.tid_retry |= tid_msk;
- lq->agg_ctrl.next_retry =
- jiffies + msecs_to_jiffies(500);
- } else
- lq->agg_ctrl.requested_ba &= ~tid_msk;
- }
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- out:
- return;
-}
-
-static void iwl4965_bg_agg_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- agg_work);
-
- u32 tid;
- u32 retry_tid;
- u32 tid_msk;
- unsigned long flags;
- struct iwl_lq_mngr *lq = (struct iwl_lq_mngr *)&(priv->lq_mngr);
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- retry_tid = lq->agg_ctrl.tid_retry;
- lq->agg_ctrl.tid_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
-
- if (retry_tid == TID_ALL_SPECIFIED)
- iwl4965_turn_on_agg(priv, TID_ALL_SPECIFIED);
- else {
- for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
- tid_msk = (1 << tid);
- if (retry_tid & tid_msk)
- iwl4965_turn_on_agg(priv, tid);
- }
- }
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- if (lq->agg_ctrl.tid_retry)
- lq->agg_ctrl.next_retry = jiffies + msecs_to_jiffies(500);
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- return;
-}
-#endif /*CONFIG_IWLWIFI_HT_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
-
-int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
- u8 sta_id, dma_addr_t txcmd_phys,
- struct ieee80211_hdr *hdr, u8 hdr_len,
- struct ieee80211_tx_control *ctrl, void *sta_in)
-{
- struct iwl_tx_cmd cmd;
- struct iwl_tx_cmd *tx = (struct iwl_tx_cmd *)&out_cmd->cmd.payload[0];
- dma_addr_t scratch_phys;
- u8 unicast = 0;
- u8 is_data = 1;
- u16 fc;
- u16 rate_flags;
- int rate_index = min(ctrl->tx_rate & 0xffff, IWL_RATE_COUNT - 1);
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
- __le16 *qc;
-#endif /*CONFIG_IWLWIFI_HT_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
-
- unicast = !is_multicast_ether_addr(hdr->addr1);
-
- fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- is_data = 0;
-
- memcpy(&cmd, &(out_cmd->cmd.tx), sizeof(struct iwl_tx_cmd));
- memset(tx, 0, sizeof(struct iwl_tx_cmd));
- memcpy(tx->hdr, hdr, hdr_len);
-
- tx->len = cmd.len;
- tx->driver_txop = cmd.driver_txop;
- tx->stop_time.life_time = cmd.stop_time.life_time;
- tx->tx_flags = cmd.tx_flags;
- tx->sta_id = cmd.sta_id;
- tx->tid_tspec = cmd.tid_tspec;
- tx->timeout.pm_frame_timeout = cmd.timeout.pm_frame_timeout;
- tx->next_frame_len = cmd.next_frame_len;
-
- tx->sec_ctl = cmd.sec_ctl;
- memcpy(&(tx->key[0]), &(cmd.key[0]), 16);
- tx->tx_flags = cmd.tx_flags;
-
- tx->rts_retry_limit = cmd.rts_retry_limit;
- tx->data_retry_limit = cmd.data_retry_limit;
-
- scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl_tx_cmd, scratch);
- tx->dram_lsb_ptr = cpu_to_le32(scratch_phys);
- tx->dram_msb_ptr = iwl4965_get_dma_hi_address(scratch_phys);
-
- /* Hard coded to start at the highest retry fallback position
- * until the 4965 specific rate control algorithm is tied in */
- tx->initial_rate_index = LINK_QUAL_MAX_RETRY_NUM - 1;
-
- /* Alternate between antenna A and B for successive frames */
- if (priv->use_ant_b_for_management_frame) {
- priv->use_ant_b_for_management_frame = 0;
- rate_flags = RATE_MCS_ANT_B_MSK;
- } else {
- priv->use_ant_b_for_management_frame = 1;
- rate_flags = RATE_MCS_ANT_A_MSK;
- }
-
- if (!unicast || !is_data) {
- if ((rate_index >= IWL_FIRST_CCK_RATE) &&
- (rate_index <= IWL_LAST_CCK_RATE))
- rate_flags |= RATE_MCS_CCK_MSK;
- } else {
- tx->initial_rate_index = 0;
- tx->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
- }
-
- tx->rate_n_flags = iwl_hw_set_rate_n_flags(iwl_rates[rate_index].plcp,
- rate_flags);
-
- if (ieee80211_is_back_request(fc))
- tx->tx_flags |= TX_CMD_FLG_ACK_MSK |
- TX_CMD_FLG_IMM_BA_RSP_MASK;
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc &&
- (priv->iw_mode != IEEE80211_IF_TYPE_IBSS)) {
- u8 tid = 0;
- tid = (u8) (le16_to_cpu(*qc) & 0xF);
- if (tid < TID_MAX_LOAD_COUNT)
- iwl4965_tl_add_packet(priv, tid);
- }
-
- if (priv->lq_mngr.agg_ctrl.next_retry &&
- (time_after(priv->lq_mngr.agg_ctrl.next_retry, jiffies))) {
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lq_mngr.lock, flags);
- priv->lq_mngr.agg_ctrl.next_retry = 0;
- spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
- schedule_work(&priv->agg_work);
- }
-#endif
-#endif
- return 0;
-}
-
/**
* sign_extend - Sign extend a value using specified bit as sign-bit
*
}
/*
- * Temperature is only 23 bits so sign extend out to 32
+ * Temperature is only 23 bits, so sign extend out to 32.
*
* NOTE If we haven't received a statistics notification yet
* with an updated temperature, use R4 provided to us in the
- * ALIVE response. */
+ * "initialize" ALIVE response.
+ */
if (!test_bit(STATUS_TEMPERATURE, &priv->status))
vt = sign_extend(R4, 23);
else
priv->last_rx_noise);
}
-void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+void iwl4965_hw_rx_statistics(struct iwl_priv *priv, struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
int change;
s32 temp;
if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
(pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
iwl4965_rx_calc_noise(priv);
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
queue_work(priv->workqueue, &priv->sensitivity_work);
#endif
}
+ iwl_leds_background(priv);
+
/* If the hardware hasn't reported a change in
* temperature then don't bother computing a
* calibrated temperature value */
queue_work(priv->workqueue, &priv->txpower_work);
}
+static void iwl4965_add_radiotap(struct iwl_priv *priv,
+ struct sk_buff *skb,
+ struct iwl4965_rx_phy_res *rx_start,
+ struct ieee80211_rx_status *stats,
+ u32 ampdu_status)
+{
+ s8 signal = stats->ssi;
+ s8 noise = 0;
+ int rate = stats->rate_idx;
+ u64 tsf = stats->mactime;
+ __le16 antenna;
+ __le16 phy_flags_hw = rx_start->phy_flags;
+ struct iwl4965_rt_rx_hdr {
+ struct ieee80211_radiotap_header rt_hdr;
+ __le64 rt_tsf; /* TSF */
+ u8 rt_flags; /* radiotap packet flags */
+ u8 rt_rate; /* rate in 500kb/s */
+ __le16 rt_channelMHz; /* channel in MHz */
+ __le16 rt_chbitmask; /* channel bitfield */
+ s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
+ s8 rt_dbmnoise;
+ u8 rt_antenna; /* antenna number */
+ } __attribute__ ((packed)) *iwl4965_rt;
+
+ /* TODO: We won't have enough headroom for HT frames. Fix it later. */
+ if (skb_headroom(skb) < sizeof(*iwl4965_rt)) {
+ if (net_ratelimit())
+ printk(KERN_ERR "not enough headroom [%d] for "
+ "radiotap head [%zd]\n",
+ skb_headroom(skb), sizeof(*iwl4965_rt));
+ return;
+ }
+
+ /* put radiotap header in front of 802.11 header and data */
+ iwl4965_rt = (void *)skb_push(skb, sizeof(*iwl4965_rt));
+
+ /* initialise radiotap header */
+ iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
+ iwl4965_rt->rt_hdr.it_pad = 0;
+
+ /* total header + data */
+ put_unaligned(cpu_to_le16(sizeof(*iwl4965_rt)),
+ &iwl4965_rt->rt_hdr.it_len);
+
+ /* Indicate all the fields we add to the radiotap header */
+ put_unaligned(cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
+ (1 << IEEE80211_RADIOTAP_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
+ (1 << IEEE80211_RADIOTAP_ANTENNA)),
+ &iwl4965_rt->rt_hdr.it_present);
+
+ /* Zero the flags, we'll add to them as we go */
+ iwl4965_rt->rt_flags = 0;
+
+ put_unaligned(cpu_to_le64(tsf), &iwl4965_rt->rt_tsf);
+
+ iwl4965_rt->rt_dbmsignal = signal;
+ iwl4965_rt->rt_dbmnoise = noise;
+
+ /* Convert the channel frequency and set the flags */
+ put_unaligned(cpu_to_le16(stats->freq), &iwl4965_rt->rt_channelMHz);
+ if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK))
+ put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM |
+ IEEE80211_CHAN_5GHZ),
+ &iwl4965_rt->rt_chbitmask);
+ else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK)
+ put_unaligned(cpu_to_le16(IEEE80211_CHAN_CCK |
+ IEEE80211_CHAN_2GHZ),
+ &iwl4965_rt->rt_chbitmask);
+ else /* 802.11g */
+ put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM |
+ IEEE80211_CHAN_2GHZ),
+ &iwl4965_rt->rt_chbitmask);
+
+ if (rate == -1)
+ iwl4965_rt->rt_rate = 0;
+ else {
+ if (stats->band == IEEE80211_BAND_5GHZ)
+ rate += IWL_FIRST_OFDM_RATE;
+
+ iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee;
+ }
+
+ /*
+ * "antenna number"
+ *
+ * It seems that the antenna field in the phy flags value
+ * is actually a bitfield. This is undefined by radiotap,
+ * it wants an actual antenna number but I always get "7"
+ * for most legacy frames I receive indicating that the
+ * same frame was received on all three RX chains.
+ *
+ * I think this field should be removed in favour of a
+ * new 802.11n radiotap field "RX chains" that is defined
+ * as a bitmask.
+ */
+ antenna = phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK;
+ iwl4965_rt->rt_antenna = le16_to_cpu(antenna) >> 4;
+
+ /* set the preamble flag if appropriate */
+ if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+ iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+ stats->flag |= RX_FLAG_RADIOTAP;
+}
+
+static void iwl_update_rx_stats(struct iwl_priv *priv, u16 fc, u16 len)
+{
+ /* 0 - mgmt, 1 - cnt, 2 - data */
+ int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
+ priv->rx_stats[idx].cnt++;
+ priv->rx_stats[idx].bytes += len;
+}
+
+static u32 iwl4965_translate_rx_status(u32 decrypt_in)
+{
+ u32 decrypt_out = 0;
+
+ if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) ==
+ RX_RES_STATUS_STATION_FOUND)
+ decrypt_out |= (RX_RES_STATUS_STATION_FOUND |
+ RX_RES_STATUS_NO_STATION_INFO_MISMATCH);
+
+ decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK);
+
+ /* packet was not encrypted */
+ if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
+ RX_RES_STATUS_SEC_TYPE_NONE)
+ return decrypt_out;
+
+ /* packet was encrypted with unknown alg */
+ if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
+ RX_RES_STATUS_SEC_TYPE_ERR)
+ return decrypt_out;
+
+ /* decryption was not done in HW */
+ if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) !=
+ RX_MPDU_RES_STATUS_DEC_DONE_MSK)
+ return decrypt_out;
+
+ switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) {
+
+ case RX_RES_STATUS_SEC_TYPE_CCMP:
+ /* alg is CCM: check MIC only */
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK))
+ /* Bad MIC */
+ decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
+ else
+ decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
+
+ break;
+
+ case RX_RES_STATUS_SEC_TYPE_TKIP:
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) {
+ /* Bad TTAK */
+ decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
+ break;
+ }
+ /* fall through if TTAK OK */
+ default:
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
+ decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
+ else
+ decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
+ break;
+ };
+
+ IWL_DEBUG_RX("decrypt_in:0x%x decrypt_out = 0x%x\n",
+ decrypt_in, decrypt_out);
+
+ return decrypt_out;
+}
+
static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
int include_phy,
- struct iwl_rx_mem_buffer *rxb,
+ struct iwl4965_rx_mem_buffer *rxb,
struct ieee80211_rx_status *stats)
{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_rx_packet *pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
struct iwl4965_rx_phy_res *rx_start = (include_phy) ?
(struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : NULL;
struct ieee80211_hdr *hdr;
__le32 *rx_end;
unsigned int skblen;
u32 ampdu_status;
+ u32 ampdu_status_legacy;
if (!include_phy && priv->last_phy_res[0])
rx_start = (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1];
rx_start->byte_count = amsdu->byte_count;
rx_end = (__le32 *) (((u8 *) hdr) + len);
}
- if (len > 2342 || len < 16) {
- IWL_DEBUG_DROP("byte count out of range [16,2342]"
- " : %d\n", len);
+ if (len > priv->hw_params.max_pkt_size || len < 16) {
+ IWL_WARNING("byte count out of range [16,4K] : %d\n", len);
return;
}
ampdu_status = le32_to_cpu(*rx_end);
skblen = ((u8 *) rx_end - (u8 *) & pkt->u.raw[0]) + sizeof(u32);
+ if (!include_phy) {
+ /* New status scheme, need to translate */
+ ampdu_status_legacy = ampdu_status;
+ ampdu_status = iwl4965_translate_rx_status(ampdu_status);
+ }
+
/* start from MAC */
skb_reserve(rxb->skb, (void *)hdr - (void *)pkt);
skb_put(rxb->skb, len); /* end where data ends */
return;
}
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- if (iwl_param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb,
- ampdu_status, stats);
- iwl_handle_data_packet_monitor(priv, rxb, hdr, len, stats, 0);
- return;
- }
-
stats->flag = 0;
hdr = (struct ieee80211_hdr *)rxb->skb->data;
- if (iwl_param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb, ampdu_status, stats);
+ if (!priv->cfg->mod_params->sw_crypto)
+ iwl4965_set_decrypted_flag(priv, rxb->skb, ampdu_status, stats);
+
+ if (priv->add_radiotap)
+ iwl4965_add_radiotap(priv, rxb->skb, rx_start, stats, ampdu_status);
+ iwl_update_rx_stats(priv, le16_to_cpu(hdr->frame_control), len);
ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
priv->alloc_rxb_skb--;
rxb->skb = NULL;
-#ifdef LED
- priv->led_packets += len;
- iwl_setup_activity_timer(priv);
-#endif
}
/* Calc max signal level (dBm) among 3 possible receivers */
return (max_rssi - agc - IWL_RSSI_OFFSET);
}
-#ifdef CONFIG_IWLWIFI_HT
-
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- u8 *ds_params;
- u8 ds_params_len;
- u8 *tim;
- u8 tim_len;
- u8 *ibss_params;
- u8 ibss_params_len;
- u8 *erp_info;
- u8 erp_info_len;
- u8 *ht_cap_param;
- u8 ht_cap_param_len;
- u8 *ht_extra_param;
- u8 ht_extra_param_len;
-};
+#ifdef CONFIG_IWL4965_HT
-static int parse_elems(u8 *start, size_t len, struct ieee802_11_elems *elems)
+void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
+ struct ieee80211_ht_info *ht_info,
+ enum ieee80211_band band)
{
- size_t left = len;
- u8 *pos = start;
- int unknown = 0;
+ ht_info->cap = 0;
+ memset(ht_info->supp_mcs_set, 0, 16);
- memset(elems, 0, sizeof(*elems));
+ ht_info->ht_supported = 1;
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left)
- return -1;
+ if (band == IEEE80211_BAND_5GHZ) {
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
+ ht_info->supp_mcs_set[4] = 0x01;
+ }
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
+ ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS &
+ (IWL_MIMO_PS_NONE << 2));
- switch (id) {
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_HT_CAPABILITY:
- elems->ht_cap_param = pos;
- elems->ht_cap_param_len = elen;
- break;
- case WLAN_EID_HT_EXTRA_INFO:
- elems->ht_extra_param = pos;
- elems->ht_extra_param_len = elen;
- break;
- default:
- unknown++;
- break;
- }
+ if (priv->cfg->mod_params->amsdu_size_8K)
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
- left -= elen;
- pos += elen;
- }
+ ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
+ ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
- return 0;
+ ht_info->supp_mcs_set[0] = 0xFF;
+ ht_info->supp_mcs_set[1] = 0xFF;
}
-#endif /* CONFIG_IWLWIFI_HT */
+#endif /* CONFIG_IWL4965_HT */
static void iwl4965_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
{
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
spin_unlock_irqrestore(&priv->sta_lock, flags);
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
static void iwl4965_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
{
/* FIXME: need locking over ps_status ??? */
- u8 sta_id = iwl_hw_find_station(priv, addr);
+ u8 sta_id = iwl4965_hw_find_station(priv, addr);
if (sta_id != IWL_INVALID_STATION) {
u8 sta_awake = priv->stations[sta_id].
}
}
}
+#ifdef CONFIG_IWLWIFI_DEBUG
-/* Called for REPLY_4965_RX (legacy ABG frames), or
+/**
+ * iwl4965_dbg_report_frame - dump frame to syslog during debug sessions
+ *
+ * You may hack this function to show different aspects of received frames,
+ * including selective frame dumps.
+ * group100 parameter selects whether to show 1 out of 100 good frames.
+ *
+ * TODO: This was originally written for 3945, need to audit for
+ * proper operation with 4965.
+ */
+static void iwl4965_dbg_report_frame(struct iwl_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100)
+{
+ u32 to_us;
+ u32 print_summary = 0;
+ u32 print_dump = 0; /* set to 1 to dump all frames' contents */
+ u32 hundred = 0;
+ u32 dataframe = 0;
+ u16 fc;
+ u16 seq_ctl;
+ u16 channel;
+ u16 phy_flags;
+ int rate_sym;
+ u16 length;
+ u16 status;
+ u16 bcn_tmr;
+ u32 tsf_low;
+ u64 tsf;
+ u8 rssi;
+ u8 agc;
+ u16 sig_avg;
+ u16 noise_diff;
+ struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+ struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ u8 *data = IWL_RX_DATA(pkt);
+
+ if (likely(!(iwl_debug_level & IWL_DL_RX)))
+ return;
+
+ /* MAC header */
+ fc = le16_to_cpu(header->frame_control);
+ seq_ctl = le16_to_cpu(header->seq_ctrl);
+
+ /* metadata */
+ channel = le16_to_cpu(rx_hdr->channel);
+ phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+ rate_sym = rx_hdr->rate;
+ length = le16_to_cpu(rx_hdr->len);
+
+ /* end-of-frame status and timestamp */
+ status = le32_to_cpu(rx_end->status);
+ bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
+ tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
+ tsf = le64_to_cpu(rx_end->timestamp);
+
+ /* signal statistics */
+ rssi = rx_stats->rssi;
+ agc = rx_stats->agc;
+ sig_avg = le16_to_cpu(rx_stats->sig_avg);
+ noise_diff = le16_to_cpu(rx_stats->noise_diff);
+
+ to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
+
+ /* if data frame is to us and all is good,
+ * (optionally) print summary for only 1 out of every 100 */
+ if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
+ dataframe = 1;
+ if (!group100)
+ print_summary = 1; /* print each frame */
+ else if (priv->framecnt_to_us < 100) {
+ priv->framecnt_to_us++;
+ print_summary = 0;
+ } else {
+ priv->framecnt_to_us = 0;
+ print_summary = 1;
+ hundred = 1;
+ }
+ } else {
+ /* print summary for all other frames */
+ print_summary = 1;
+ }
+
+ if (print_summary) {
+ char *title;
+ int rate_idx;
+ u32 bitrate;
+
+ if (hundred)
+ title = "100Frames";
+ else if (fc & IEEE80211_FCTL_RETRY)
+ title = "Retry";
+ else if (ieee80211_is_assoc_response(fc))
+ title = "AscRsp";
+ else if (ieee80211_is_reassoc_response(fc))
+ title = "RasRsp";
+ else if (ieee80211_is_probe_response(fc)) {
+ title = "PrbRsp";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_beacon(fc)) {
+ title = "Beacon";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_atim(fc))
+ title = "ATIM";
+ else if (ieee80211_is_auth(fc))
+ title = "Auth";
+ else if (ieee80211_is_deauth(fc))
+ title = "DeAuth";
+ else if (ieee80211_is_disassoc(fc))
+ title = "DisAssoc";
+ else
+ title = "Frame";
+
+ rate_idx = iwl4965_hwrate_to_plcp_idx(rate_sym);
+ if (unlikely(rate_idx == -1))
+ bitrate = 0;
+ else
+ bitrate = iwl4965_rates[rate_idx].ieee / 2;
+
+ /* print frame summary.
+ * MAC addresses show just the last byte (for brevity),
+ * but you can hack it to show more, if you'd like to. */
+ if (dataframe)
+ IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
+ "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
+ title, fc, header->addr1[5],
+ length, rssi, channel, bitrate);
+ else {
+ /* src/dst addresses assume managed mode */
+ IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
+ "src=0x%02x, rssi=%u, tim=%lu usec, "
+ "phy=0x%02x, chnl=%d\n",
+ title, fc, header->addr1[5],
+ header->addr3[5], rssi,
+ tsf_low - priv->scan_start_tsf,
+ phy_flags, channel);
+ }
+ }
+ if (print_dump)
+ iwl_print_hex_dump(IWL_DL_RX, data, length);
+}
+#else
+static inline void iwl4965_dbg_report_frame(struct iwl_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header,
+ int group100)
+{
+}
+#endif
+
+
+
+/* Called for REPLY_RX (legacy ABG frames), or
* REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+ struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct ieee80211_hdr *header;
+ struct ieee80211_rx_status rx_status;
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
/* Use phy data (Rx signal strength, etc.) contained within
* this rx packet for legacy frames,
* or phy data cached from REPLY_RX_PHY_CMD for HT frames. */
- int include_phy = (pkt->hdr.cmd == REPLY_4965_RX);
+ int include_phy = (pkt->hdr.cmd == REPLY_RX);
struct iwl4965_rx_phy_res *rx_start = (include_phy) ?
(struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) :
(struct iwl4965_rx_phy_res *)&priv->last_phy_res[1];
__le32 *rx_end;
unsigned int len = 0;
- struct ieee80211_hdr *header;
u16 fc;
- struct ieee80211_rx_status stats = {
- .mactime = le64_to_cpu(rx_start->timestamp),
- .channel = le16_to_cpu(rx_start->channel),
- .phymode =
- (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- MODE_IEEE80211G : MODE_IEEE80211A,
- .antenna = 0,
- .rate = iwl_hw_get_rate(rx_start->rate_n_flags),
- .flag = 0,
-#ifdef CONFIG_IWLWIFI_HT_AGG
- .ordered = 0
-#endif /* CONFIG_IWLWIFI_HT_AGG */
- };
u8 network_packet;
+ rx_status.mactime = le64_to_cpu(rx_start->timestamp);
+ rx_status.freq =
+ ieee80211_channel_to_frequency(le16_to_cpu(rx_start->channel));
+ rx_status.band = (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
+ IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+ rx_status.rate_idx =
+ iwl4965_hwrate_to_plcp_idx(le32_to_cpu(rx_start->rate_n_flags));
+ if (rx_status.band == IEEE80211_BAND_5GHZ)
+ rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
+
+ rx_status.antenna = 0;
+ rx_status.flag = 0;
+
if ((unlikely(rx_start->cfg_phy_cnt > 20))) {
- IWL_DEBUG_DROP
- ("dsp size out of range [0,20]: "
- "%d/n", rx_start->cfg_phy_cnt);
+ IWL_DEBUG_DROP("dsp size out of range [0,20]: %d/n",
+ rx_start->cfg_phy_cnt);
return;
}
+
if (!include_phy) {
if (priv->last_phy_res[0])
rx_start = (struct iwl4965_rx_phy_res *)
+ rx_start->cfg_phy_cnt);
len = le16_to_cpu(rx_start->byte_count);
- rx_end = (__le32 *) (pkt->u.raw + rx_start->cfg_phy_cnt +
+ rx_end = (__le32 *)(pkt->u.raw + rx_start->cfg_phy_cnt +
sizeof(struct iwl4965_rx_phy_res) + len);
} else {
struct iwl4965_rx_mpdu_res_start *amsdu =
priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp);
- stats.freq = ieee80211chan2mhz(stats.channel);
-
/* Find max signal strength (dBm) among 3 antenna/receiver chains */
- stats.ssi = iwl4965_calc_rssi(rx_start);
+ rx_status.ssi = iwl4965_calc_rssi(rx_start);
/* Meaningful noise values are available only from beacon statistics,
* which are gathered only when associated, and indicate noise
* Ignore these noise values while scanning (other channels) */
if (iwl_is_associated(priv) &&
!test_bit(STATUS_SCANNING, &priv->status)) {
- stats.noise = priv->last_rx_noise;
- stats.signal = iwl_calc_sig_qual(stats.ssi, stats.noise);
+ rx_status.noise = priv->last_rx_noise;
+ rx_status.signal = iwl4965_calc_sig_qual(rx_status.ssi,
+ rx_status.noise);
} else {
- stats.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
- stats.signal = iwl_calc_sig_qual(stats.ssi, 0);
+ rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
+ rx_status.signal = iwl4965_calc_sig_qual(rx_status.ssi, 0);
}
/* Reset beacon noise level if not associated. */
if (!iwl_is_associated(priv))
priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-#ifdef CONFIG_IWLWIFI_DEBUG
- /* TODO: Parts of iwl_report_frame are broken for 4965 */
- if (iwl_debug_level & (IWL_DL_RX))
- /* Set "1" to report good data frames in groups of 100 */
- iwl_report_frame(priv, pkt, header, 1);
-
- if (iwl_debug_level & (IWL_DL_RX | IWL_DL_STATS))
- IWL_DEBUG_RX("Rssi %d, noise %d, qual %d, TSF %lu\n",
- stats.ssi, stats.noise, stats.signal,
- (long unsigned int)le64_to_cpu(rx_start->timestamp));
-#endif
+ /* Set "1" to report good data frames in groups of 100 */
+ /* FIXME: need to optimze the call: */
+ iwl4965_dbg_report_frame(priv, pkt, header, 1);
+
+ IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n",
+ rx_status.ssi, rx_status.noise, rx_status.signal,
+ (unsigned long long)rx_status.mactime);
- network_packet = iwl_is_network_packet(priv, header);
+ network_packet = iwl4965_is_network_packet(priv, header);
if (network_packet) {
- priv->last_rx_rssi = stats.ssi;
+ priv->last_rx_rssi = rx_status.ssi;
priv->last_beacon_time = priv->ucode_beacon_time;
priv->last_tsf = le64_to_cpu(rx_start->timestamp);
}
fc = le16_to_cpu(header->frame_control);
switch (fc & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_MGMT:
-
if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM,
header->addr2);
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- if ((priv->iw_mode == IEEE80211_IF_TYPE_STA &&
- !compare_ether_addr(header->addr2, priv->bssid)) ||
- (priv->iw_mode == IEEE80211_IF_TYPE_IBSS &&
- !compare_ether_addr(header->addr3, priv->bssid))) {
- struct ieee80211_mgmt *mgmt =
- (struct ieee80211_mgmt *)header;
- u64 timestamp =
- le64_to_cpu(mgmt->u.beacon.timestamp);
-
- priv->timestamp0 = timestamp & 0xFFFFFFFF;
- priv->timestamp1 =
- (timestamp >> 32) & 0xFFFFFFFF;
- priv->beacon_int = le16_to_cpu(
- mgmt->u.beacon.beacon_int);
- if (priv->call_post_assoc_from_beacon &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- priv->call_post_assoc_from_beacon = 0;
- queue_work(priv->workqueue,
- &priv->post_associate.work);
- }
- }
- break;
-
- case IEEE80211_STYPE_ACTION:
- break;
-
- /*
- * TODO: There is no callback function from upper
- * stack to inform us when associated status. this
- * work around to sniff assoc_resp management frame
- * and finish the association process.
- */
- case IEEE80211_STYPE_ASSOC_RESP:
- case IEEE80211_STYPE_REASSOC_RESP:
- if (network_packet) {
-#ifdef CONFIG_IWLWIFI_HT
- u8 *pos = NULL;
- struct ieee802_11_elems elems;
-#endif /*CONFIG_IWLWIFI_HT */
- struct ieee80211_mgmt *mgnt =
- (struct ieee80211_mgmt *)header;
-
- priv->assoc_id = (~((1 << 15) | (1 << 14))
- & le16_to_cpu(mgnt->u.assoc_resp.aid));
- priv->assoc_capability =
- le16_to_cpu(
- mgnt->u.assoc_resp.capab_info);
-#ifdef CONFIG_IWLWIFI_HT
- pos = mgnt->u.assoc_resp.variable;
- if (!parse_elems(pos,
- len - (pos - (u8 *) mgnt),
- &elems)) {
- if (elems.ht_extra_param &&
- elems.ht_cap_param)
- break;
- }
-#endif /*CONFIG_IWLWIFI_HT */
- /* assoc_id is 0 no association */
- if (!priv->assoc_id)
- break;
- if (priv->beacon_int)
- queue_work(priv->workqueue,
- &priv->post_associate.work);
- else
- priv->call_post_assoc_from_beacon = 1;
- }
-
- break;
-
- case IEEE80211_STYPE_PROBE_REQ:
- if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !iwl_is_associated(priv)) {
- DECLARE_MAC_BUF(mac1);
- DECLARE_MAC_BUF(mac2);
- DECLARE_MAC_BUF(mac3);
-
- IWL_DEBUG_DROP("Dropping (non network): "
- "%s, %s, %s\n",
- print_mac(mac1, header->addr1),
- print_mac(mac2, header->addr2),
- print_mac(mac3, header->addr3));
- return;
- }
- }
- iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &stats);
+ iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &rx_status);
break;
case IEEE80211_FTYPE_CTL:
-#ifdef CONFIG_IWLWIFI_HT_AGG
+#ifdef CONFIG_IWL4965_HT
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_BACK_REQ:
IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n");
iwl4965_handle_data_packet(priv, 0, include_phy,
- rxb, &stats);
+ rxb, &rx_status);
break;
default:
break;
}
#endif
-
break;
case IEEE80211_FTYPE_DATA: {
print_mac(mac1, header->addr1),
print_mac(mac2, header->addr2),
print_mac(mac3, header->addr3));
- else if (unlikely(is_duplicate_packet(priv, header)))
+ else if (unlikely(iwl4965_is_duplicate_packet(priv, header)))
IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n",
print_mac(mac1, header->addr1),
print_mac(mac2, header->addr2),
print_mac(mac3, header->addr3));
else
iwl4965_handle_data_packet(priv, 1, include_phy, rxb,
- &stats);
+ &rx_status);
break;
}
default:
/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
* This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+ struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
priv->last_phy_res[0] = 1;
memcpy(&priv->last_phy_res[1], &(pkt->u.raw[0]),
sizeof(struct iwl4965_rx_phy_res));
}
-
static void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+ struct iwl4965_rx_mem_buffer *rxb)
{
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_missed_beacon_notif *missed_beacon;
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_missed_beacon_notif *missed_beacon;
missed_beacon = &pkt->u.missed_beacon;
if (le32_to_cpu(missed_beacon->consequtive_missed_beacons) > 5) {
if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)))
queue_work(priv->workqueue, &priv->sensitivity_work);
}
-#endif /*CONFIG_IWLWIFI_SENSITIVITY*/
-}
-
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
-
-static void iwl4965_set_tx_status(struct iwl_priv *priv, int txq_id, int idx,
- u32 status, u32 retry_count, u32 rate)
-{
- struct ieee80211_tx_status *tx_status =
- &(priv->txq[txq_id].txb[idx].status);
-
- tx_status->flags = status ? IEEE80211_TX_STATUS_ACK : 0;
- tx_status->retry_count += retry_count;
- tx_status->control.tx_rate = rate;
+#endif /*CONFIG_IWL4965_SENSITIVITY*/
}
+#ifdef CONFIG_IWL4965_HT
-
-static void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv,
+/**
+ * iwl4965_sta_modify_enable_tid_tx - Enable Tx for this TID in station table
+ */
+static void iwl4965_sta_modify_enable_tid_tx(struct iwl_priv *priv,
int sta_id, int tid)
{
unsigned long flags;
+ /* Remove "disable" flag, to enable Tx for this TID */
spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
spin_unlock_irqrestore(&priv->sta_lock, flags);
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
-
+/**
+ * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack
+ *
+ * Go through block-ack's bitmap of ACK'd frames, update driver's record of
+ * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
+ */
static int iwl4965_tx_status_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_ht_agg *agg,
- struct iwl_compressed_ba_resp*
+ struct iwl4965_ht_agg *agg,
+ struct iwl4965_compressed_ba_resp*
ba_resp)
{
int i, sh, ack;
- u16 ba_seq_ctl = le16_to_cpu(ba_resp->ba_seq_ctl);
- u32 bitmap0, bitmap1;
- u32 resp_bitmap0 = le32_to_cpu(ba_resp->ba_bitmap0);
- u32 resp_bitmap1 = le32_to_cpu(ba_resp->ba_bitmap1);
+ u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ u64 bitmap;
+ int successes = 0;
+ struct ieee80211_tx_status *tx_status;
if (unlikely(!agg->wait_for_ba)) {
IWL_ERROR("Received BA when not expected\n");
return -EINVAL;
}
+
+ /* Mark that the expected block-ack response arrived */
agg->wait_for_ba = 0;
- IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->ba_seq_ctl);
- sh = agg->start_idx - SEQ_TO_INDEX(ba_seq_ctl>>4);
+ IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
+
+ /* Calculate shift to align block-ack bits with our Tx window bits */
+ sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl>>4);
if (sh < 0) /* tbw something is wrong with indices */
sh += 0x100;
- /* don't use 64 bits for now */
- bitmap0 = resp_bitmap0 >> sh;
- bitmap1 = resp_bitmap1 >> sh;
- bitmap0 |= (resp_bitmap1 & ((1<<sh)|((1<<sh)-1))) << (32 - sh);
+ /* don't use 64-bit values for now */
+ bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
if (agg->frame_count > (64 - sh)) {
IWL_DEBUG_TX_REPLY("more frames than bitmap size");
}
/* check for success or failure according to the
- * transmitted bitmap and back bitmap */
- bitmap0 &= agg->bitmap0;
- bitmap1 &= agg->bitmap1;
+ * transmitted bitmap and block-ack bitmap */
+ bitmap &= agg->bitmap;
+ /* For each frame attempted in aggregation,
+ * update driver's record of tx frame's status. */
for (i = 0; i < agg->frame_count ; i++) {
- int idx = (agg->start_idx + i) & 0xff;
- ack = bitmap0 & (1 << i);
+ ack = bitmap & (1 << i);
+ successes += !!ack;
IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
- ack? "ACK":"NACK", i, idx, agg->start_idx + i);
- iwl4965_set_tx_status(priv, agg->txq_id, idx, ack, 0,
- agg->rate_n_flags);
+ ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
+ agg->start_idx + i);
+ }
+
+ tx_status = &priv->txq[scd_flow].txb[agg->start_idx].status;
+ tx_status->flags = IEEE80211_TX_STATUS_ACK;
+ tx_status->flags |= IEEE80211_TX_STATUS_AMPDU;
+ tx_status->ampdu_ack_map = successes;
+ tx_status->ampdu_ack_len = agg->frame_count;
+ iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags,
+ &tx_status->control);
+
+ IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
+
+ return 0;
+}
+
+/**
+ * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
+ */
+static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv,
+ u16 txq_id)
+{
+ /* Simply stop the queue, but don't change any configuration;
+ * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
+ iwl_write_prph(priv,
+ IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
+ (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
+ (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+}
+/**
+ * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
+ * priv->lock must be held by the caller
+ */
+static int iwl4965_tx_queue_agg_disable(struct iwl_priv *priv, u16 txq_id,
+ u16 ssn_idx, u8 tx_fifo)
+{
+ int ret = 0;
+
+ if (IWL_BACK_QUEUE_FIRST_ID > txq_id) {
+ IWL_WARNING("queue number too small: %d, must be > %d\n",
+ txq_id, IWL_BACK_QUEUE_FIRST_ID);
+ return -EINVAL;
}
- IWL_DEBUG_TX_REPLY("Bitmap %x%x\n", bitmap0, bitmap1);
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ return ret;
+
+ iwl4965_tx_queue_stop_scheduler(priv, txq_id);
+
+ iwl_clear_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
+
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ /* supposes that ssn_idx is valid (!= 0xFFF) */
+ iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
+
+ iwl_clear_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl4965_txq_ctx_deactivate(priv, txq_id);
+ iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
+
+ iwl_release_nic_access(priv);
return 0;
}
-static inline int iwl_queue_dec_wrap(int index, int n_bd)
+int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
+ u8 tid, int txq_id)
+{
+ struct iwl4965_queue *q = &priv->txq[txq_id].q;
+ u8 *addr = priv->stations[sta_id].sta.sta.addr;
+ struct iwl4965_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
+
+ switch (priv->stations[sta_id].tid[tid].agg.state) {
+ case IWL_EMPTYING_HW_QUEUE_DELBA:
+ /* We are reclaiming the last packet of the */
+ /* aggregated HW queue */
+ if (txq_id == tid_data->agg.txq_id &&
+ q->read_ptr == q->write_ptr) {
+ u16 ssn = SEQ_TO_SN(tid_data->seq_number);
+ int tx_fifo = default_tid_to_tx_fifo[tid];
+ IWL_DEBUG_HT("HW queue empty: continue DELBA flow\n");
+ iwl4965_tx_queue_agg_disable(priv, txq_id,
+ ssn, tx_fifo);
+ tid_data->agg.state = IWL_AGG_OFF;
+ ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, addr, tid);
+ }
+ break;
+ case IWL_EMPTYING_HW_QUEUE_ADDBA:
+ /* We are reclaiming the last packet of the queue */
+ if (tid_data->tfds_in_queue == 0) {
+ IWL_DEBUG_HT("HW queue empty: continue ADDBA flow\n");
+ tid_data->agg.state = IWL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(priv->hw, addr, tid);
+ }
+ break;
+ }
+ return 0;
+}
+
+/**
+ * iwl4965_queue_dec_wrap - Decrement queue index, wrap back to end if needed
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (s/b power of 2)
+ */
+static inline int iwl4965_queue_dec_wrap(int index, int n_bd)
{
return (index == 0) ? n_bd - 1 : index - 1;
}
+/**
+ * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA
+ *
+ * Handles block-acknowledge notification from device, which reports success
+ * of frames sent via aggregation.
+ */
static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+ struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
int index;
- struct iwl_tx_queue *txq = NULL;
- struct iwl_ht_agg *agg;
- u16 ba_resp_scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ struct iwl4965_tx_queue *txq = NULL;
+ struct iwl4965_ht_agg *agg;
+ DECLARE_MAC_BUF(mac);
+
+ /* "flow" corresponds to Tx queue */
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+
+ /* "ssn" is start of block-ack Tx window, corresponds to index
+ * (in Tx queue's circular buffer) of first TFD/frame in window */
u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
- if (ba_resp_scd_flow >= ARRAY_SIZE(priv->txq)) {
+ if (scd_flow >= priv->hw_params.max_txq_num) {
IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
return;
}
- txq = &priv->txq[ba_resp_scd_flow];
+ txq = &priv->txq[scd_flow];
agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
- index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
+
+ /* Find index just before block-ack window */
+ index = iwl4965_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
/* TODO: Need to get this copy more safely - now good for debug */
-/*
- {
- DECLARE_MAC_BUF(mac);
+
IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, "
"sta_id = %d\n",
agg->wait_for_ba,
print_mac(mac, (u8*) &ba_resp->sta_addr_lo32),
ba_resp->sta_id);
- IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%X%X, scd_flow = "
+ IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
"%d, scd_ssn = %d\n",
ba_resp->tid,
- ba_resp->ba_seq_ctl,
- ba_resp->ba_bitmap1,
- ba_resp->ba_bitmap0,
+ ba_resp->seq_ctl,
+ (unsigned long long)le64_to_cpu(ba_resp->bitmap),
ba_resp->scd_flow,
ba_resp->scd_ssn);
- IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%X%X \n",
+ IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n",
agg->start_idx,
- agg->bitmap1,
- agg->bitmap0);
- }
-*/
- iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
- /* releases all the TFDs until the SSN */
- if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff))
- iwl_tx_queue_reclaim(priv, ba_resp_scd_flow, index);
-
-}
+ (unsigned long long)agg->bitmap);
+ /* Update driver's record of ACK vs. not for each frame in window */
+ iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
-static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id)
-{
- iwl_write_restricted_reg(priv,
- SCD_QUEUE_STATUS_BITS(txq_id),
- (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+ /* Release all TFDs before the SSN, i.e. all TFDs in front of
+ * block-ack window (we assume that they've been successfully
+ * transmitted ... if not, it's too late anyway). */
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
+ int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index);
+ priv->stations[ba_resp->sta_id].
+ tid[ba_resp->tid].tfds_in_queue -= freed;
+ if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
+ priv->mac80211_registered &&
+ agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
+ ieee80211_wake_queue(priv->hw, scd_flow);
+ iwl4965_check_empty_hw_queue(priv, ba_resp->sta_id,
+ ba_resp->tid, scd_flow);
+ }
}
+/**
+ * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
+ */
static int iwl4965_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
u16 txq_id)
{
tbl_dw_addr = priv->scd_base_addr +
SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
- tbl_dw = iwl_read_restricted_mem(priv, tbl_dw_addr);
+ tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr);
if (txq_id & 0x1)
tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
else
tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
- iwl_write_restricted_mem(priv, tbl_dw_addr, tbl_dw);
+ iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
return 0;
}
+
/**
- * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
+ * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
+ *
+ * NOTE: txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID,
+ * i.e. it must be one of the higher queues used for aggregation
*/
static int iwl4965_tx_queue_agg_enable(struct iwl_priv *priv, int txq_id,
int tx_fifo, int sta_id, int tid,
ra_tid = BUILD_RAxTID(sta_id, tid);
- iwl_sta_modify_enable_tid_tx(priv, sta_id, tid);
+ /* Modify device's station table to Tx this TID */
+ iwl4965_sta_modify_enable_tid_tx(priv, sta_id, tid);
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
+ /* Stop this Tx queue before configuring it */
iwl4965_tx_queue_stop_scheduler(priv, txq_id);
+ /* Map receiver-address / traffic-ID to this queue */
iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
+ /* Set this queue as a chain-building queue */
+ iwl_set_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
- iwl_set_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1<<txq_id));
-
+ /* Place first TFD at index corresponding to start sequence number.
+ * Assumes that ssn_idx is valid (!= 0xFFF) */
priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
-
- /* supposes that ssn_idx is valid (!= 0xFFF) */
iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
- iwl_write_restricted_mem(priv,
+ /* Set up Tx window size and frame limit for this queue */
+ iwl_write_targ_mem(priv,
priv->scd_base_addr + SCD_CONTEXT_QUEUE_OFFSET(txq_id),
(SCD_WIN_SIZE << SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
- iwl_write_restricted_mem(priv, priv->scd_base_addr +
+ iwl_write_targ_mem(priv, priv->scd_base_addr +
SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32),
(SCD_FRAME_LIMIT << SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS)
& SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
- iwl_set_bits_restricted_reg(priv, SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl_set_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
+ /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
- iwl_release_restricted_access(priv);
+ iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-/**
- * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
- */
-static int iwl4965_tx_queue_agg_disable(struct iwl_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo)
-{
- unsigned long flags;
- int rc;
-
- if (IWL_BACK_QUEUE_FIRST_ID > txq_id) {
- IWL_WARNING("queue number too small: %d, must be > %d\n",
- txq_id, IWL_BACK_QUEUE_FIRST_ID);
- return -EINVAL;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- iwl4965_tx_queue_stop_scheduler(priv, txq_id);
-
- iwl_clear_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1 << txq_id));
-
- priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
- priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
- /* supposes that ssn_idx is valid (!= 0xFFF) */
- iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
-
- iwl_clear_bits_restricted_reg(priv, SCD_INTERRUPT_MASK, (1 << txq_id));
- iwl4965_txq_ctx_deactivate(priv, txq_id);
- iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
-
- iwl_release_restricted_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
-#endif/* CONFIG_IWLWIFI_HT_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
-/*
- * RATE SCALE CODE
- */
-int iwl4965_init_hw_rates(struct iwl_priv *priv, struct ieee80211_rate *rates)
-{
- return 0;
-}
-
+#endif /* CONFIG_IWL4965_HT */
/**
* iwl4965_add_station - Initialize a station's hardware rate table
*
- * The uCode contains a table of fallback rates and retries per rate
+ * The uCode's station table contains a table of fallback rates
* for automatic fallback during transmission.
*
- * NOTE: This initializes the table for a single retry per data rate
- * which is not optimal. Setting up an intelligent retry per rate
- * requires feedback from transmission, which isn't exposed through
- * rc80211_simple which is what this driver is currently using.
+ * NOTE: This sets up a default set of values. These will be replaced later
+ * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of
+ * rc80211_simple.
*
+ * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
+ * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
+ * which requires station table entry to exist).
*/
void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
{
};
u16 rate_flags;
- /* Set up the rate scaling to start at 54M and fallback
- * all the way to 1M in IEEE order and then spin on IEEE */
+ /* Set up the rate scaling to start at selected rate, fall back
+ * all the way down to 1M in IEEE order, and then spin on 1M */
if (is_ap)
r = IWL_RATE_54M_INDEX;
- else if (priv->phymode == MODE_IEEE80211A)
+ else if (priv->band == IEEE80211_BAND_5GHZ)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
+ /* Use Tx antenna B only */
rate_flags |= RATE_MCS_ANT_B_MSK;
rate_flags &= ~RATE_MCS_ANT_A_MSK;
+
link_cmd.rs_table[i].rate_n_flags =
- iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
- r = iwl_get_prev_ieee_rate(r);
+ iwl4965_hw_set_rate_n_flags(iwl4965_rates[r].plcp, rate_flags);
+ r = iwl4965_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk = 2;
link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);
/* Update the rate scaling for control frame Tx to AP */
- link_cmd.sta_id = is_ap ? IWL_AP_ID : IWL4965_BROADCAST_ID;
+ link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id;
- iwl_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD, sizeof(link_cmd),
- &link_cmd);
+ iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
+ sizeof(link_cmd), &link_cmd, NULL);
}
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
-static u8 iwl_is_channel_extension(struct iwl_priv *priv, int phymode,
- u16 channel, u8 extension_chan_offset)
+static u8 iwl4965_is_channel_extension(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ u16 channel, u8 extension_chan_offset)
{
const struct iwl_channel_info *ch_info;
- ch_info = iwl_get_channel_info(priv, phymode, channel);
+ ch_info = iwl_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info))
return 0;
- if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO)
+ if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE)
return 0;
if ((ch_info->fat_extension_channel == extension_chan_offset) ||
return 0;
}
-static u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
- const struct sta_ht_info *ht_info)
+static u8 iwl4965_is_fat_tx_allowed(struct iwl_priv *priv,
+ struct ieee80211_ht_info *sta_ht_inf)
{
+ struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
- if (priv->channel_width != IWL_CHANNEL_WIDTH_40MHZ)
- return 0;
-
- if (ht_info->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ)
+ if ((!iwl_ht_conf->is_ht) ||
+ (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
+ (iwl_ht_conf->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE))
return 0;
- if (ht_info->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO)
- return 0;
+ if (sta_ht_inf) {
+ if ((!sta_ht_inf->ht_supported) ||
+ (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
+ return 0;
+ }
- /* no fat tx allowed on 2.4GHZ */
- if (priv->phymode != MODE_IEEE80211A)
- return 0;
- return (iwl_is_channel_extension(priv, priv->phymode,
- ht_info->control_channel,
- ht_info->extension_chan_offset));
+ return (iwl4965_is_channel_extension(priv, priv->band,
+ iwl_ht_conf->control_channel,
+ iwl_ht_conf->extension_chan_offset));
}
-void iwl4965_set_rxon_ht(struct iwl_priv *priv, struct sta_ht_info *ht_info)
+void iwl4965_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
{
- struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+ struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon;
u32 val;
if (!ht_info->is_ht)
return;
- if (iwl_is_fat_tx_allowed(priv, ht_info))
+ /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
+ if (iwl4965_is_fat_tx_allowed(priv, NULL))
rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK;
else
rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
return;
}
- /* Note: control channel is oposit to extension channel */
+ /* Note: control channel is opposite of extension channel */
switch (ht_info->extension_chan_offset) {
case IWL_EXT_CHANNEL_OFFSET_ABOVE:
rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
case IWL_EXT_CHANNEL_OFFSET_BELOW:
rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
break;
- case IWL_EXT_CHANNEL_OFFSET_AUTO:
- rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
- break;
+ case IWL_EXT_CHANNEL_OFFSET_NONE:
default:
rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
break;
}
- val = ht_info->operating_mode;
+ val = ht_info->ht_protection;
rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
- priv->active_rate_ht[0] = ht_info->supp_rates[0];
- priv->active_rate_ht[1] = ht_info->supp_rates[1];
iwl4965_set_rxon_chain(priv);
IWL_DEBUG_ASSOC("supported HT rate 0x%X %X "
"rxon flags 0x%X operation mode :0x%X "
"extension channel offset 0x%x "
"control chan %d\n",
- priv->active_rate_ht[0], priv->active_rate_ht[1],
- le32_to_cpu(rxon->flags), ht_info->operating_mode,
+ ht_info->supp_mcs_set[0], ht_info->supp_mcs_set[1],
+ le32_to_cpu(rxon->flags), ht_info->ht_protection,
ht_info->extension_chan_offset,
ht_info->control_channel);
return;
}
-void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index)
+void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
+ struct ieee80211_ht_info *sta_ht_inf)
{
__le32 sta_flags;
- struct sta_ht_info *ht_info = &priv->current_assoc_ht;
+ u8 mimo_ps_mode;
- priv->current_channel_width = IWL_CHANNEL_WIDTH_20MHZ;
- if (!ht_info->is_ht)
+ if (!sta_ht_inf || !sta_ht_inf->ht_supported)
goto done;
+ mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
+
sta_flags = priv->stations[index].sta.station_flags;
- if (ht_info->tx_mimo_ps_mode == IWL_MIMO_PS_DYNAMIC)
+ sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
+
+ switch (mimo_ps_mode) {
+ case WLAN_HT_CAP_MIMO_PS_STATIC:
+ sta_flags |= STA_FLG_MIMO_DIS_MSK;
+ break;
+ case WLAN_HT_CAP_MIMO_PS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
- else
- sta_flags &= ~STA_FLG_RTS_MIMO_PROT_MSK;
+ break;
+ case WLAN_HT_CAP_MIMO_PS_DISABLED:
+ break;
+ default:
+ IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode);
+ break;
+ }
sta_flags |= cpu_to_le32(
- (u32)ht_info->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
+ (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
sta_flags |= cpu_to_le32(
- (u32)ht_info->mpdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
-
- sta_flags &= (~STA_FLG_FAT_EN_MSK);
- ht_info->tx_chan_width = IWL_CHANNEL_WIDTH_20MHZ;
- ht_info->chan_width_cap = IWL_CHANNEL_WIDTH_20MHZ;
+ (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
- if (iwl_is_fat_tx_allowed(priv, ht_info)) {
+ if (iwl4965_is_fat_tx_allowed(priv, sta_ht_inf))
sta_flags |= STA_FLG_FAT_EN_MSK;
- ht_info->chan_width_cap = IWL_CHANNEL_WIDTH_40MHZ;
- if (ht_info->supported_chan_width == IWL_CHANNEL_WIDTH_40MHZ)
- ht_info->tx_chan_width = IWL_CHANNEL_WIDTH_40MHZ;
- }
- priv->current_channel_width = ht_info->tx_chan_width;
+ else
+ sta_flags &= ~STA_FLG_FAT_EN_MSK;
+
priv->stations[index].sta.station_flags = sta_flags;
done:
return;
}
-#ifdef CONFIG_IWLWIFI_HT_AGG
-
static void iwl4965_sta_modify_add_ba_tid(struct iwl_priv *priv,
int sta_id, int tid, u16 ssn)
{
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
spin_unlock_irqrestore(&priv->sta_lock, flags);
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
static void iwl4965_sta_modify_del_ba_tid(struct iwl_priv *priv,
priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
spin_unlock_irqrestore(&priv->sta_lock, flags);
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
-static const u16 default_tid_to_tx_fifo[] = {
- IWL_TX_FIFO_AC1,
- IWL_TX_FIFO_AC0,
- IWL_TX_FIFO_AC0,
- IWL_TX_FIFO_AC1,
- IWL_TX_FIFO_AC2,
- IWL_TX_FIFO_AC2,
- IWL_TX_FIFO_AC3,
- IWL_TX_FIFO_AC3,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_NONE,
- IWL_TX_FIFO_AC3
-};
-
-static int iwl_txq_ctx_activate_free(struct iwl_priv *priv)
+/*
+ * Find first available (lowest unused) Tx Queue, mark it "active".
+ * Called only when finding queue for aggregation.
+ * Should never return anything < 7, because they should already
+ * be in use as EDCA AC (0-3), Command (4), HCCA (5, 6).
+ */
+static int iwl4965_txq_ctx_activate_free(struct iwl_priv *priv)
{
int txq_id;
- for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++)
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk))
return txq_id;
return -1;
}
-int iwl_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da, u16 tid,
- u16 *start_seq_num)
+static int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, const u8 *da,
+ u16 tid, u16 *start_seq_num)
{
-
struct iwl_priv *priv = hw->priv;
int sta_id;
int tx_fifo;
int txq_id;
int ssn = -1;
+ int ret = 0;
unsigned long flags;
- struct iwl_tid_data *tid_data;
+ struct iwl4965_tid_data *tid_data;
DECLARE_MAC_BUF(mac);
if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
else
return -EINVAL;
- IWL_WARNING("iwl-AGG iwl_mac_ht_tx_agg_start on da=%s"
- " tid=%d\n", print_mac(mac, da), tid);
+ IWL_WARNING("%s on da = %s tid = %d\n",
+ __func__, print_mac(mac, da), tid);
- sta_id = iwl_hw_find_station(priv, da);
+ sta_id = iwl4965_hw_find_station(priv, da);
if (sta_id == IWL_INVALID_STATION)
return -ENXIO;
- txq_id = iwl_txq_ctx_activate_free(priv);
+ if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
+ IWL_ERROR("Start AGG when state is not IWL_AGG_OFF !\n");
+ return -ENXIO;
+ }
+
+ txq_id = iwl4965_txq_ctx_activate_free(priv);
if (txq_id == -1)
return -ENXIO;
spin_unlock_irqrestore(&priv->sta_lock, flags);
*start_seq_num = ssn;
- iwl4965_ba_status(priv, tid, BA_STATUS_ACTIVE);
- return iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo,
- sta_id, tid, ssn);
+ ret = iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo,
+ sta_id, tid, ssn);
+ if (ret)
+ return ret;
+
+ ret = 0;
+ if (tid_data->tfds_in_queue == 0) {
+ printk(KERN_ERR "HW queue is empty\n");
+ tid_data->agg.state = IWL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(hw, da, tid);
+ } else {
+ IWL_DEBUG_HT("HW queue is NOT empty: %d packets in HW queue\n",
+ tid_data->tfds_in_queue);
+ tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA;
+ }
+ return ret;
}
-
-int iwl_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da, u16 tid,
- int generator)
+static int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, const u8 *da,
+ u16 tid)
{
struct iwl_priv *priv = hw->priv;
int tx_fifo_id, txq_id, sta_id, ssn = -1;
- struct iwl_tid_data *tid_data;
- int rc;
+ struct iwl4965_tid_data *tid_data;
+ int ret, write_ptr, read_ptr;
+ unsigned long flags;
DECLARE_MAC_BUF(mac);
if (!da) {
- IWL_ERROR("%s: da = NULL\n", __func__);
+ IWL_ERROR("da = NULL\n");
return -EINVAL;
}
else
return -EINVAL;
- sta_id = iwl_hw_find_station(priv, da);
+ sta_id = iwl4965_hw_find_station(priv, da);
if (sta_id == IWL_INVALID_STATION)
return -ENXIO;
+ if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_ON)
+ IWL_WARNING("Stopping AGG while state not IWL_AGG_ON\n");
+
tid_data = &priv->stations[sta_id].tid[tid];
ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
txq_id = tid_data->agg.txq_id;
+ write_ptr = priv->txq[txq_id].q.write_ptr;
+ read_ptr = priv->txq[txq_id].q.read_ptr;
+
+ /* The queue is not empty */
+ if (write_ptr != read_ptr) {
+ IWL_DEBUG_HT("Stopping a non empty AGG HW QUEUE\n");
+ priv->stations[sta_id].tid[tid].agg.state =
+ IWL_EMPTYING_HW_QUEUE_DELBA;
+ return 0;
+ }
- rc = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id);
- /* FIXME: need more safe way to handle error condition */
- if (rc)
- return rc;
+ IWL_DEBUG_HT("HW queue empty\n");;
+ priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
- iwl4965_ba_status(priv, tid, BA_STATUS_INITIATOR_DELBA);
- IWL_DEBUG_INFO("iwl_mac_ht_tx_agg_stop on da=%s tid=%d\n",
- print_mac(mac, da), tid);
+ spin_lock_irqsave(&priv->lock, flags);
+ ret = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id);
+ spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
-}
+ if (ret)
+ return ret;
-int iwl_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
- u16 tid, u16 start_seq_num)
-{
- struct iwl_priv *priv = hw->priv;
- int sta_id;
- DECLARE_MAC_BUF(mac);
+ ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, da, tid);
+
+ IWL_DEBUG_INFO("iwl4965_mac_ht_tx_agg_stop on da=%s tid=%d\n",
+ print_mac(mac, da), tid);
- IWL_WARNING("iwl-AGG iwl_mac_ht_rx_agg_start on da=%s"
- " tid=%d\n", print_mac(mac, da), tid);
- sta_id = iwl_hw_find_station(priv, da);
- iwl4965_sta_modify_add_ba_tid(priv, sta_id, tid, start_seq_num);
return 0;
}
-int iwl_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
- u16 tid, int generator)
+int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
+ enum ieee80211_ampdu_mlme_action action,
+ const u8 *addr, u16 tid, u16 *ssn)
{
struct iwl_priv *priv = hw->priv;
int sta_id;
DECLARE_MAC_BUF(mac);
- IWL_WARNING("iwl-AGG iwl_mac_ht_rx_agg_stop on da=%s tid=%d\n",
- print_mac(mac, da), tid);
- sta_id = iwl_hw_find_station(priv, da);
- iwl4965_sta_modify_del_ba_tid(priv, sta_id, tid);
+ IWL_DEBUG_HT("A-MPDU action on da=%s tid=%d ",
+ print_mac(mac, addr), tid);
+ sta_id = iwl4965_hw_find_station(priv, addr);
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ IWL_DEBUG_HT("start Rx\n");
+ iwl4965_sta_modify_add_ba_tid(priv, sta_id, tid, *ssn);
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ IWL_DEBUG_HT("stop Rx\n");
+ iwl4965_sta_modify_del_ba_tid(priv, sta_id, tid);
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ IWL_DEBUG_HT("start Tx\n");
+ return iwl4965_mac_ht_tx_agg_start(hw, addr, tid, ssn);
+ case IEEE80211_AMPDU_TX_STOP:
+ IWL_DEBUG_HT("stop Tx\n");
+ return iwl4965_mac_ht_tx_agg_stop(hw, addr, tid);
+ default:
+ IWL_DEBUG_HT("unknown\n");
+ return -EINVAL;
+ break;
+ }
return 0;
}
-#endif /* CONFIG_IWLWIFI_HT_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
+#endif /* CONFIG_IWL4965_HT */
/* Set up 4965-specific Rx frame reply handlers */
-void iwl_hw_rx_handler_setup(struct iwl_priv *priv)
+void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv)
{
/* Legacy Rx frames */
- priv->rx_handlers[REPLY_4965_RX] = iwl4965_rx_reply_rx;
+ priv->rx_handlers[REPLY_RX] = iwl4965_rx_reply_rx;
/* High-throughput (HT) Rx frames */
priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy;
priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
iwl4965_rx_missed_beacon_notif;
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
+#ifdef CONFIG_IWL4965_HT
priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
-#endif /* CONFIG_IWLWIFI_AGG */
-#endif /* CONFIG_IWLWIFI */
+#endif /* CONFIG_IWL4965_HT */
}
-void iwl_hw_setup_deferred_work(struct iwl_priv *priv)
+void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv)
{
INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work);
- INIT_WORK(&priv->statistics_work, iwl4965_bg_statistics_work);
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work);
#endif
-#ifdef CONFIG_IWLWIFI_HT
-#ifdef CONFIG_IWLWIFI_HT_AGG
- INIT_WORK(&priv->agg_work, iwl4965_bg_agg_work);
-#endif /* CONFIG_IWLWIFI_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
init_timer(&priv->statistics_periodic);
priv->statistics_periodic.data = (unsigned long)priv;
priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
}
-void iwl_hw_cancel_deferred_work(struct iwl_priv *priv)
+void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv)
{
del_timer_sync(&priv->statistics_periodic);
cancel_delayed_work(&priv->init_alive_start);
}
-struct pci_device_id iwl_hw_card_ids[] = {
- {0x8086, 0x4229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x4230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0}
+
+static struct iwl_hcmd_ops iwl4965_hcmd = {
+ .rxon_assoc = iwl4965_send_rxon_assoc,
};
-int iwl_eeprom_acquire_semaphore(struct iwl_priv *priv)
-{
- u16 count;
- int rc;
+static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
+ .enqueue_hcmd = iwl4965_enqueue_hcmd,
+};
- for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
- rc = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
- EEPROM_SEM_TIMEOUT);
- if (rc >= 0) {
- IWL_DEBUG_IO("Acquired semaphore after %d tries.\n",
- count+1);
- return rc;
- }
- }
+static struct iwl_lib_ops iwl4965_lib = {
+ .init_drv = iwl4965_init_drv,
+ .set_hw_params = iwl4965_hw_set_hw_params,
+ .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
+ .hw_nic_init = iwl4965_hw_nic_init,
+ .is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr,
+ .alive_notify = iwl4965_alive_notify,
+ .load_ucode = iwl4965_load_bsm,
+ .eeprom_ops = {
+ .verify_signature = iwlcore_eeprom_verify_signature,
+ .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
+ .release_semaphore = iwlcore_eeprom_release_semaphore,
+ },
+ .radio_kill_sw = iwl4965_radio_kill_sw,
+};
- return rc;
-}
+static struct iwl_ops iwl4965_ops = {
+ .lib = &iwl4965_lib,
+ .hcmd = &iwl4965_hcmd,
+ .utils = &iwl4965_hcmd_utils,
+};
-inline void iwl_eeprom_release_semaphore(struct iwl_priv *priv)
-{
- iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
-}
+struct iwl_cfg iwl4965_agn_cfg = {
+ .name = "4965AGN",
+ .fw_name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode",
+ .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
+ .ops = &iwl4965_ops,
+ .mod_params = &iwl4965_mod_params,
+};
+module_param_named(antenna, iwl4965_mod_params.antenna, int, 0444);
+MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
+module_param_named(disable, iwl4965_mod_params.disable, int, 0444);
+MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
+module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, 0444);
+MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])\n");
+module_param_named(debug, iwl4965_mod_params.debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+module_param_named(
+ disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
+
+module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, 0444);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+
+/* QoS */
+module_param_named(qos_enable, iwl4965_mod_params.enable_qos, int, 0444);
+MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
+module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, int, 0444);
+MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
-MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff