* file called LICENSE.
*
* Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/version.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include "iwl-io.h"
#include "iwl-helpers.h"
#include "iwl-calib.h"
+#include "iwl-sta.h"
+
+static int iwl4965_send_tx_power(struct iwl_priv *priv);
+static int iwl4965_hw_get_temperature(const struct iwl_priv *priv);
+
+/* Highest firmware API version supported */
+#define IWL4965_UCODE_API_MAX 2
+
+/* Lowest firmware API version supported */
+#define IWL4965_UCODE_API_MIN 2
+
+#define IWL4965_FW_PRE "iwlwifi-4965-"
+#define _IWL4965_MODULE_FIRMWARE(api) IWL4965_FW_PRE #api ".ucode"
+#define IWL4965_MODULE_FIRMWARE(api) _IWL4965_MODULE_FIRMWARE(api)
+
/* module parameters */
static struct iwl_mod_params iwl4965_mod_params = {
.num_of_queues = IWL49_NUM_QUEUES,
- .enable_qos = 1,
+ .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES,
.amsdu_size_8K = 1,
.restart_fw = 1,
/* the rest are 0 by default */
};
-#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)
{
priv->ucode_type = UCODE_RT;
/* make sure bootstrap program is no larger than BSM's SRAM size */
- if (len > IWL_MAX_BSM_SIZE)
+ if (len > IWL49_MAX_BSM_SIZE)
return -EINVAL;
/* Tell bootstrap uCode where to find the "Initialize" uCode
/* 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_MEM_DST_REG, IWL49_RTC_INST_LOWER_BOUND);
iwl_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
/* Load bootstrap code into instruction SRAM now,
iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
priv->ucode_data.len);
- /* Inst bytecount must be last to set up, bit 31 signals uCode
+ /* Inst byte count must be last to set up, bit 31 signals uCode
* that all new ptr/size info is in place */
iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
priv->ucode_code.len | BSM_DRAM_INST_LOAD);
}
/* Calculate temperature */
- priv->temperature = iwl4965_get_temperature(priv);
+ priv->temperature = iwl4965_hw_get_temperature(priv);
/* Send pointers to protocol/runtime uCode image ... init code will
* load and launch runtime uCode, which will send us another "Alive"
(rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK);
}
-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_MIMO2_6M_PLCP)
- idx = idx - IWL_RATE_MIMO2_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(iwl_rates); idx++)
- if (iwl_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_info *control)
-{
- int rate_index;
-
- control->antenna_sel_tx =
- ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
- if (rate_n_flags & RATE_MCS_HT_MSK)
- control->flags |= IEEE80211_TX_CTL_OFDM_HT;
- if (rate_n_flags & RATE_MCS_GF_MSK)
- control->flags |= IEEE80211_TX_CTL_GREEN_FIELD;
- if (rate_n_flags & RATE_MCS_FAT_MSK)
- control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH;
- if (rate_n_flags & RATE_MCS_DUP_MSK)
- control->flags |= IEEE80211_TX_CTL_DUP_DATA;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- control->flags |= IEEE80211_TX_CTL_SHORT_GI;
- rate_index = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
- if (control->band == IEEE80211_BAND_5GHZ)
- rate_index -= IWL_FIRST_OFDM_RATE;
- control->tx_rate_idx = rate_index;
-}
-
/*
* EEPROM handlers
*/
-
-static int iwl4965_eeprom_check_version(struct iwl_priv *priv)
-{
- u16 eeprom_ver;
- u16 calib_ver;
-
- eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
-
- calib_ver = iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET);
-
- if (eeprom_ver < EEPROM_4965_EEPROM_VERSION ||
- calib_ver < EEPROM_4965_TX_POWER_VERSION)
- goto err;
-
- return 0;
-err:
- IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
- eeprom_ver, EEPROM_4965_EEPROM_VERSION,
- calib_ver, EEPROM_4965_TX_POWER_VERSION);
- return -EINVAL;
-
-}
-int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
+static u16 iwl4965_eeprom_calib_version(struct iwl_priv *priv)
{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- ret = iwl_grab_nic_access(priv);
- if (ret) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
- }
-
- if (src == IWL_PWR_SRC_VAUX) {
- u32 val;
- 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_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
- }
- } else {
- 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_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return ret;
+ return iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET);
}
/*
- * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask
+ * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
* must be called under priv->lock and mac access
*/
static void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask)
iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
/* wait for clock stabilization */
- ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
+ ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
if (ret < 0) {
IWL_DEBUG_INFO("Failed to init the card\n");
goto out;
unsigned long flags;
u32 val;
u16 radio_cfg;
- u8 val_link;
+ u16 link;
spin_lock_irqsave(&priv->lock, flags);
val & ~(1 << 11));
}
- pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
+ pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &link);
/* L1 is enabled by BIOS */
- if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
- /* diable L0S disabled L1A enabled */
+ if ((link & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
+ /* disable L0S disabled L1A enabled */
iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
else
/* L0S enabled L1A disabled */
static int iwl4965_apm_stop_master(struct iwl_priv *priv)
{
- int ret = 0;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
/* set stop master bit */
iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
- ret = iwl_poll_bit(priv, CSR_RESET,
- CSR_RESET_REG_FLAG_MASTER_DISABLED,
- CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
- if (ret < 0)
- goto out;
+ iwl_poll_direct_bit(priv, CSR_RESET,
+ CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
-out:
spin_unlock_irqrestore(&priv->lock, flags);
IWL_DEBUG_INFO("stop master\n");
- return ret;
+ return 0;
}
static void iwl4965_apm_stop(struct iwl_priv *priv)
iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
udelay(10);
-
- iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+ /* clear "init complete" move adapter D0A* --> D0U state */
+ iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
spin_unlock_irqrestore(&priv->lock, flags);
}
iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- ret = iwl_poll_bit(priv, CSR_RESET,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25);
-
- if (ret)
+ ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
+ if (ret < 0)
goto out;
udelay(10);
return ret;
}
-#define REG_RECALIB_PERIOD (60)
-
-/**
- * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
- *
- * 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.
- */
-static void iwl4965_bg_statistics_periodic(unsigned long data)
-{
- struct iwl_priv *priv = (struct iwl_priv *)data;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- iwl_send_statistics_request(priv, CMD_ASYNC);
-}
-
-void iwl4965_rf_kill_ct_config(struct iwl_priv *priv)
-{
- struct iwl4965_ct_kill_config cmd;
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- cmd.critical_temperature_R =
- cpu_to_le32(priv->hw_params.ct_kill_threshold);
-
- 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, "
- "critical temperature is %d\n",
- cmd.critical_temperature_R);
-}
-
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
-
/* Reset differential Rx gains in NIC to prepare for chain noise calibration.
* Called after every association, but this runs only once!
* ... once chain noise is calibrated the first time, it's good forever. */
struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
- struct iwl4965_calibration_cmd cmd;
+ struct iwl_calib_diff_gain_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
- cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD;
+ cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
cmd.diff_gain_a = 0;
cmd.diff_gain_b = 0;
cmd.diff_gain_c = 0;
/* Differential gain gets sent to uCode only once */
if (!data->radio_write) {
- struct iwl4965_calibration_cmd cmd;
+ struct iwl_calib_diff_gain_cmd cmd;
data->radio_write = 1;
memset(&cmd, 0, sizeof(cmd));
- cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD;
+ cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_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];
data->beacon_count = 0;
}
-static void iwl4965_bg_sensitivity_work(struct work_struct *work)
+static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
+ __le32 *tx_flags)
{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- sensitivity_work);
-
- mutex_lock(&priv->mutex);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- if (priv->start_calib) {
- iwl_chain_noise_calibration(priv, &priv->statistics);
-
- iwl_sensitivity_calibration(priv, &priv->statistics);
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+ *tx_flags |= TX_CMD_FLG_RTS_MSK;
+ *tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+ } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+ *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ *tx_flags |= TX_CMD_FLG_CTS_MSK;
}
-
- mutex_unlock(&priv->mutex);
- return;
}
-#endif /*CONFIG_IWL4965_RUN_TIME_CALIB*/
static void iwl4965_bg_txpower_work(struct work_struct *work)
{
mutex_lock(&priv->mutex);
- /* Regardless of if we are assocaited, we must reconfigure the
+ /* Regardless of if we are associated, we must reconfigure the
* TX power since frames can be sent on non-radar channels while
* not associated */
- iwl4965_hw_reg_send_txpower(priv);
+ iwl4965_send_tx_power(priv);
/* Update last_temperature to keep is_calib_needed from running
* when it isn't needed... */
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;
+ int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
/* Set up and activate */
iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
IWL_TX_FIFO_HCCA_2
};
-int iwl4965_alive_notify(struct iwl_priv *priv)
+static int iwl4965_alive_notify(struct iwl_priv *priv)
{
u32 a;
- int i = 0;
unsigned long flags;
int ret;
+ int i, chan;
+ u32 reg_val;
spin_lock_irqsave(&priv->lock, flags);
/* 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);
+ priv->scd_bc_tbls.dma >> 10);
+
+ /* Enable DMA channel */
+ for (chan = 0; chan < FH49_TCSR_CHNL_NUM ; chan++)
+ iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
+ FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
+ FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
+
+ /* Update FH chicken bits */
+ reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
+ iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
+ reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
/* Disable chain mode for all queues */
iwl_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
(1 << priv->hw_params.max_txq_num) - 1);
/* Activate all Tx DMA/FIFO channels */
- priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
+ priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 6));
iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
return ret;
}
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
.min_nrg_cck = 97,
.max_nrg_cck = 0,
.nrg_th_cck = 100,
.nrg_th_ofdm = 100,
};
-#endif
/**
* iwl4965_hw_set_hw_params
*
* Called when initializing driver
*/
-int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
+static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
{
if ((priv->cfg->mod_params->num_of_queues > IWL49_NUM_QUEUES) ||
}
priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
- priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
- 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.dma_chnl_num = FH49_TCSR_CHNL_NUM;
+ priv->hw_params.scd_bc_tbls_size =
+ IWL49_NUM_QUEUES * sizeof(struct iwl4965_scd_bc_tbl);
priv->hw_params.max_stations = IWL4965_STATION_COUNT;
priv->hw_params.bcast_sta_id = IWL4965_BROADCAST_ID;
-
priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE;
priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE;
priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
priv->hw_params.valid_rx_ant = ANT_A | ANT_B;
priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
priv->hw_params.sens = &iwl4965_sensitivity;
-#endif
return 0;
}
-/* set card power command */
-static int iwl4965_set_power(struct iwl_priv *priv,
- void *cmd)
-{
- int ret = 0;
-
- ret = iwl_send_cmd_pdu_async(priv, POWER_TABLE_CMD,
- sizeof(struct iwl4965_powertable_cmd),
- cmd, NULL);
- return ret;
-}
-int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
-{
- IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n");
- return -EINVAL;
-}
-
static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res)
{
s32 sign = 1;
return comp;
}
-static const struct iwl_channel_info *
-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, band, channel);
-
- if (!is_channel_valid(ch_info))
- return NULL;
-
- return ch_info;
-}
-
static s32 iwl4965_get_tx_atten_grp(u16 channel)
{
if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH &&
channel <= CALIB_IWL_TX_ATTEN_GR4_LCH)
return CALIB_CH_GROUP_4;
- IWL_ERROR("Can't find txatten group for channel %d.\n", channel);
return -1;
}
s = iwl4965_get_sub_band(priv, channel);
if (s >= EEPROM_TX_POWER_BANDS) {
- IWL_ERROR("Tx Power can not find channel %d ", channel);
+ IWL_ERROR("Tx Power can not find channel %d\n", channel);
return -1;
}
s32 factory_actual_pwr[2];
s32 power_index;
- /* Sanity check requested level (dBm) */
- if (priv->user_txpower_limit < IWL_TX_POWER_TARGET_POWER_MIN) {
- IWL_WARNING("Requested user TXPOWER %d below limit.\n",
- priv->user_txpower_limit);
- return -EINVAL;
- }
- if (priv->user_txpower_limit > IWL_TX_POWER_TARGET_POWER_MAX) {
- IWL_WARNING("Requested user TXPOWER %d above limit.\n",
- priv->user_txpower_limit);
- return -EINVAL;
- }
-
/* user_txpower_limit is in dBm, convert to half-dBm (half-dB units
* are used for indexing into txpower table) */
- user_target_power = 2 * priv->user_txpower_limit;
+ user_target_power = 2 * priv->tx_power_user_lmt;
/* Get current (RXON) channel, band, width */
- ch_info =
- iwl4965_get_channel_txpower_info(priv, priv->band, channel);
-
IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band,
is_fat);
- if (!ch_info)
+ ch_info = iwl_get_channel_info(priv, priv->band, channel);
+
+ if (!is_channel_valid(ch_info))
return -EINVAL;
/* get txatten group, used to select 1) thermal txpower adjustment
* and 2) mimo txpower balance between Tx chains. */
txatten_grp = iwl4965_get_tx_atten_grp(channel);
- if (txatten_grp < 0)
+ if (txatten_grp < 0) {
+ IWL_ERROR("Can't find txatten group for channel %d.\n",
+ channel);
return -EINVAL;
+ }
IWL_DEBUG_TXPOWER("channel %d belongs to txatten group %d\n",
channel, txatten_grp);
/* stay within the table! */
if (power_index > 107) {
- IWL_WARNING("txpower index %d > 107\n",
+ IWL_WARN(priv, "txpower index %d > 107\n",
power_index);
power_index = 107;
}
if (power_index < 0) {
- IWL_WARNING("txpower index %d < 0\n",
+ IWL_WARN(priv, "txpower index %d < 0\n",
power_index);
power_index = 0;
}
c, atten_value, power_index,
tx_power.s.radio_tx_gain[c],
tx_power.s.dsp_predis_atten[c]);
- }/* for each chain */
+ } /* for each chain */
tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw);
- }/* for each rate */
+ } /* for each rate */
return 0;
}
/**
- * iwl4965_hw_reg_send_txpower - Configure the TXPOWER level user limit
+ * iwl4965_send_tx_power - 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.
+ * The power limit is taken from priv->tx_power_user_lmt.
*/
-int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv)
+static int iwl4965_send_tx_power(struct iwl_priv *priv)
{
struct iwl4965_txpowertable_cmd cmd = { 0 };
int ret;
/* If this gets hit a lot, switch it to a BUG() and catch
* the stack trace to find out who is calling this during
* a scan. */
- IWL_WARNING("TX Power requested while scanning!\n");
+ IWL_WARN(priv, "TX Power requested while scanning!\n");
return -EAGAIN;
}
return ret;
}
-
-int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
{
int rc;
u8 band = 0;
rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
return rc;
}
-
-static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv)
-{
- struct iwl4965_shared *s = priv->shared_virt;
- return le32_to_cpu(s->rb_closed) & 0xFFF;
-}
-
-int iwl4965_hw_get_temperature(struct iwl_priv *priv)
-{
- return priv->temperature;
-}
-
-unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u8 rate)
-{
- 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 = priv->hw_params.bcast_sta_id;
- tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- frame_size = iwl4965_fill_beacon_frame(priv,
- tx_beacon_cmd->frame,
- iwl_bcast_addr,
- sizeof(frame->u) - sizeof(*tx_beacon_cmd));
-
- BUG_ON(frame_size > MAX_MPDU_SIZE);
- tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
-
- if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
- tx_beacon_cmd->tx.rate_n_flags =
- iwl4965_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
- else
- tx_beacon_cmd->tx.rate_n_flags =
- 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);
-}
-
-static int iwl4965_alloc_shared_mem(struct iwl_priv *priv)
-{
- priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
- sizeof(struct iwl4965_shared),
- &priv->shared_phys);
- if (!priv->shared_virt)
- return -ENOMEM;
-
- memset(priv->shared_virt, 0, sizeof(struct iwl4965_shared));
-
- priv->rb_closed_offset = offsetof(struct iwl4965_shared, rb_closed);
-
- return 0;
-}
-
-static void iwl4965_free_shared_mem(struct iwl_priv *priv)
-{
- if (priv->shared_virt)
- pci_free_consistent(priv->pci_dev,
- sizeof(struct iwl4965_shared),
- priv->shared_virt,
- priv->shared_phys);
-}
+#endif
/**
* iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
struct iwl_tx_queue *txq,
u16 byte_cnt)
{
- int len;
+ struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
int txq_id = txq->q.id;
- struct iwl4965_shared *shared_data = priv->shared_virt;
+ int write_ptr = txq->q.write_ptr;
+ int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
+ __le16 bc_ent;
- len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
+ WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
+ bc_ent = cpu_to_le16(len & 0xFFF);
/* 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);
+ scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
/* If within first 64 entries, duplicate at end */
- if (txq->q.write_ptr < IWL49_MAX_WIN_SIZE)
- IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[IWL49_QUEUE_SIZE + txq->q.write_ptr],
- byte_cnt, len);
+ if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
+ scd_bc_tbl[txq_id].
+ tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
}
/**
}
/**
- * iwl4965_get_temperature - return the calibrated temperature (in Kelvin)
+ * iwl4965_hw_get_temperature - return the calibrated temperature (in Kelvin)
* @statistics: Provides the temperature reading from the uCode
*
* A return of <0 indicates bogus data in the statistics
*/
-int iwl4965_get_temperature(const struct iwl_priv *priv)
+static int iwl4965_hw_get_temperature(const struct iwl_priv *priv)
{
s32 temperature;
s32 vt;
vt = sign_extend(
le32_to_cpu(priv->statistics.general.temperature), 23);
- IWL_DEBUG_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n",
- R1, R2, R3, vt);
+ IWL_DEBUG_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt);
if (R3 == R1) {
IWL_ERROR("Calibration conflict R1 == R3\n");
* Add offset to center the adjustment around 0 degrees Centigrade. */
temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2);
temperature /= (R3 - R1);
- temperature = (temperature * 97) / 100 +
- TEMPERATURE_CALIB_KELVIN_OFFSET;
+ temperature = (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET;
- IWL_DEBUG_TEMP("Calibrated temperature: %dK, %dC\n", temperature,
- KELVIN_TO_CELSIUS(temperature));
+ IWL_DEBUG_TEMP("Calibrated temperature: %dK, %dC\n",
+ temperature, KELVIN_TO_CELSIUS(temperature));
return temperature;
}
return 1;
}
-/* Calculate noise level, based on measurements during network silence just
- * before arriving beacon. This measurement can be done only if we know
- * exactly when to expect beacons, therefore only when we're associated. */
-static void iwl4965_rx_calc_noise(struct iwl_priv *priv)
-{
- struct statistics_rx_non_phy *rx_info
- = &(priv->statistics.rx.general);
- int num_active_rx = 0;
- int total_silence = 0;
- int bcn_silence_a =
- le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
- int bcn_silence_b =
- le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
- int bcn_silence_c =
- le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
-
- if (bcn_silence_a) {
- total_silence += bcn_silence_a;
- num_active_rx++;
- }
- if (bcn_silence_b) {
- total_silence += bcn_silence_b;
- num_active_rx++;
- }
- if (bcn_silence_c) {
- total_silence += bcn_silence_c;
- num_active_rx++;
- }
-
- /* Average among active antennas */
- if (num_active_rx)
- priv->last_rx_noise = (total_silence / num_active_rx) - 107;
- else
- priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-
- IWL_DEBUG_CALIB("inband silence a %u, b %u, c %u, dBm %d\n",
- bcn_silence_a, bcn_silence_b, bcn_silence_c,
- priv->last_rx_noise);
-}
-
-void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+static void iwl4965_temperature_calib(struct iwl_priv *priv)
{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- int change;
s32 temp;
- IWL_DEBUG_RX("Statistics notification received (%d vs %d).\n",
- (int)sizeof(priv->statistics), pkt->len);
-
- change = ((priv->statistics.general.temperature !=
- pkt->u.stats.general.temperature) ||
- ((priv->statistics.flag &
- STATISTICS_REPLY_FLG_FAT_MODE_MSK) !=
- (pkt->u.stats.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)));
-
- memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));
-
- set_bit(STATUS_STATISTICS, &priv->status);
-
- /* Reschedule the statistics timer to occur in
- * REG_RECALIB_PERIOD seconds to ensure we get a
- * thermal update even if the uCode doesn't give
- * us one */
- mod_timer(&priv->statistics_periodic, jiffies +
- msecs_to_jiffies(REG_RECALIB_PERIOD * 1000));
-
- if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
- (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
- iwl4965_rx_calc_noise(priv);
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
- 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 */
- if (!change)
- return;
-
- temp = iwl4965_get_temperature(priv);
+ temp = iwl4965_hw_get_temperature(priv);
if (temp < 0)
return;
priv->temperature = temp;
set_bit(STATUS_TEMPERATURE, &priv->status);
- if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
- iwl4965_is_temp_calib_needed(priv))
+ if (!priv->disable_tx_power_cal &&
+ unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
+ iwl4965_is_temp_calib_needed(priv))
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->signal;
- 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
- iwl4965_rt->rt_rate = iwl_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)
+/**
+ * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
+ */
+static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv,
+ u16 txq_id)
{
- /* 0 - mgmt, 1 - cnt, 2 - data */
- int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
- priv->rx_stats[idx].cnt++;
- priv->rx_stats[idx].bytes += len;
+ /* 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 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
+ (1 << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
}
-/*
- * returns non-zero if packet should be dropped
+/**
+ * txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE
+ * priv->lock must be held by the caller
*/
-static int iwl4965_set_decrypted_flag(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u32 decrypt_res,
- struct ieee80211_rx_status *stats)
+static int iwl4965_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
+ u16 ssn_idx, u8 tx_fifo)
{
- u16 fc = le16_to_cpu(hdr->frame_control);
+ int ret = 0;
- if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
- return 0;
+ if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
+ (IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES <= txq_id)) {
+ IWL_WARN(priv,
+ "queue number out of range: %d, must be %d to %d\n",
+ txq_id, IWL49_FIRST_AMPDU_QUEUE,
+ IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES - 1);
+ return -EINVAL;
+ }
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return 0;
+ ret = iwl_grab_nic_access(priv);
+ if (ret)
+ return ret;
- IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
- switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- /* The uCode has got a bad phase 1 Key, pushes the packet.
- * Decryption will be done in SW. */
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_KEY_TTAK)
- break;
+ iwl4965_tx_queue_stop_scheduler(priv, txq_id);
- case RX_RES_STATUS_SEC_TYPE_WEP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_ICV_MIC) {
- /* bad ICV, the packet is destroyed since the
- * decryption is inplace, drop it */
- IWL_DEBUG_RX("Packet destroyed\n");
- return -1;
- }
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_DECRYPT_OK) {
- IWL_DEBUG_RX("hw decrypt successfully!!!\n");
- stats->flag |= RX_FLAG_DECRYPTED;
- }
- break;
+ 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));
+ iwl_txq_ctx_deactivate(priv, txq_id);
+ iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
+
+ iwl_release_nic_access(priv);
- default:
- break;
- }
return 0;
}
-static u32 iwl4965_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)
+/**
+ * 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)
{
- 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);
+ u32 tbl_dw_addr;
+ u32 tbl_dw;
+ u16 scd_q2ratid;
- /* packet was not encrypted */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_NONE)
- return decrypt_out;
+ scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
- /* packet was encrypted with unknown alg */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_ERR)
- return decrypt_out;
+ tbl_dw_addr = priv->scd_base_addr +
+ IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
- /* 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 ieee80211_rx_status *stats)
-{
- struct iwl_rx_packet *pkt = (struct iwl_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;
- u16 len;
- __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];
-
- if (!rx_start) {
- IWL_ERROR("MPDU frame without a PHY data\n");
- return;
- }
- if (include_phy) {
- hdr = (struct ieee80211_hdr *)((u8 *) & rx_start[1] +
- rx_start->cfg_phy_cnt);
-
- len = le16_to_cpu(rx_start->byte_count);
-
- rx_end = (__le32 *) ((u8 *) & pkt->u.raw[0] +
- sizeof(struct iwl4965_rx_phy_res) +
- rx_start->cfg_phy_cnt + len);
-
- } else {
- struct iwl4965_rx_mpdu_res_start *amsdu =
- (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
-
- hdr = (struct ieee80211_hdr *)(pkt->u.raw +
- sizeof(struct iwl4965_rx_mpdu_res_start));
- len = le16_to_cpu(amsdu->byte_count);
- rx_start->byte_count = amsdu->byte_count;
- rx_end = (__le32 *) (((u8 *) hdr) + len);
- }
- /* In monitor mode allow 802.11 ACk frames (10 bytes) */
- if (len > priv->hw_params.max_pkt_size ||
- len < ((priv->iw_mode == IEEE80211_IF_TYPE_MNTR) ? 10 : 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(priv, ampdu_status);
- }
-
- /* start from MAC */
- skb_reserve(rxb->skb, (void *)hdr - (void *)pkt);
- skb_put(rxb->skb, len); /* end where data ends */
-
- /* We only process data packets if the interface is open */
- if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP_LIMIT
- ("Dropping packet while interface is not open.\n");
- return;
- }
-
- stats->flag = 0;
- hdr = (struct ieee80211_hdr *)rxb->skb->data;
-
- /* in case of HW accelerated crypto and bad decryption, drop */
- if (!priv->hw_params.sw_crypto &&
- iwl4965_set_decrypted_flag(priv, hdr, ampdu_status, stats))
- return;
-
- 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;
-}
-
-/* Calc max signal level (dBm) among 3 possible receivers */
-static int iwl4965_calc_rssi(struct iwl_priv *priv,
- struct iwl4965_rx_phy_res *rx_resp)
-{
- /* data from PHY/DSP regarding signal strength, etc.,
- * contents are always there, not configurable by host. */
- struct iwl4965_rx_non_cfg_phy *ncphy =
- (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy;
- u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL_AGC_DB_MASK)
- >> IWL_AGC_DB_POS;
-
- u32 valid_antennae =
- (le16_to_cpu(rx_resp->phy_flags) & RX_PHY_FLAGS_ANTENNAE_MASK)
- >> RX_PHY_FLAGS_ANTENNAE_OFFSET;
- u8 max_rssi = 0;
- u32 i;
-
- /* Find max rssi among 3 possible receivers.
- * These values are measured by the digital signal processor (DSP).
- * They should stay fairly constant even as the signal strength varies,
- * if the radio's automatic gain control (AGC) is working right.
- * AGC value (see below) will provide the "interesting" info. */
- for (i = 0; i < 3; i++)
- if (valid_antennae & (1 << i))
- max_rssi = max(ncphy->rssi_info[i << 1], max_rssi);
-
- IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n",
- ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4],
- max_rssi, agc);
-
- /* dBm = max_rssi dB - agc dB - constant.
- * Higher AGC (higher radio gain) means lower signal. */
- return (max_rssi - agc - IWL_RSSI_OFFSET);
-}
-
-static void iwl4965_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.sta.modify_mask = 0;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- iwl_send_add_sta(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_find_station(priv, addr);
-
- if (sta_id != IWL_INVALID_STATION) {
- u8 sta_awake = priv->stations[sta_id].
- ps_status == STA_PS_STATUS_WAKE;
-
- if (sta_awake && ps_bit)
- priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
- else if (!sta_awake && !ps_bit) {
- iwl4965_sta_modify_ps_wake(priv, sta_id);
- priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
- }
- }
-}
-#ifdef CONFIG_IWLWIFI_DEBUG
-
-/**
- * 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 iwl_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(!(priv->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 = iwl_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(priv, IWL_DL_RX, data, length);
-}
-#else
-static inline void iwl4965_dbg_report_frame(struct iwl_priv *priv,
- struct iwl_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 ieee80211_hdr *header;
- struct ieee80211_rx_status rx_status;
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)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_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;
- u16 fc;
- 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);
- return;
- }
-
- if (!include_phy) {
- if (priv->last_phy_res[0])
- rx_start = (struct iwl4965_rx_phy_res *)
- &priv->last_phy_res[1];
- else
- rx_start = NULL;
- }
-
- if (!rx_start) {
- IWL_ERROR("MPDU frame without a PHY data\n");
- return;
- }
-
- if (include_phy) {
- header = (struct ieee80211_hdr *)((u8 *) & rx_start[1]
- + rx_start->cfg_phy_cnt);
-
- len = le16_to_cpu(rx_start->byte_count);
- 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 =
- (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
-
- header = (void *)(pkt->u.raw +
- sizeof(struct iwl4965_rx_mpdu_res_start));
- len = le16_to_cpu(amsdu->byte_count);
- rx_end = (__le32 *) (pkt->u.raw +
- sizeof(struct iwl4965_rx_mpdu_res_start) + len);
- }
-
- if (!(*rx_end & RX_RES_STATUS_NO_CRC32_ERROR) ||
- !(*rx_end & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n",
- le32_to_cpu(*rx_end));
- return;
- }
-
- priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp);
-
- /* Find max signal strength (dBm) among 3 antenna/receiver chains */
- rx_status.signal = iwl4965_calc_rssi(priv, rx_start);
-
- /* Meaningful noise values are available only from beacon statistics,
- * which are gathered only when associated, and indicate noise
- * only for the associated network channel ...
- * Ignore these noise values while scanning (other channels) */
- if (iwl_is_associated(priv) &&
- !test_bit(STATUS_SCANNING, &priv->status)) {
- rx_status.noise = priv->last_rx_noise;
- rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal,
- rx_status.noise);
- } else {
- rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
- rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal, 0);
- }
-
- /* Reset beacon noise level if not associated. */
- if (!iwl_is_associated(priv))
- priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-
- /* 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.signal, rx_status.noise, rx_status.signal,
- (unsigned long long)rx_status.mactime);
-
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- iwl4965_handle_data_packet(priv, 1, include_phy,
- rxb, &rx_status);
- return;
- }
-
- network_packet = iwl4965_is_network_packet(priv, header);
- if (network_packet) {
- priv->last_rx_rssi = rx_status.signal;
- 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);
- iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &rx_status);
- break;
-
- case IEEE80211_FTYPE_CTL:
-#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, &rx_status);
- break;
- default:
- break;
- }
-#endif
- break;
-
- case IEEE80211_FTYPE_DATA: {
- DECLARE_MAC_BUF(mac1);
- DECLARE_MAC_BUF(mac2);
- DECLARE_MAC_BUF(mac3);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
- iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM,
- header->addr2);
-
- if (unlikely(!network_packet))
- 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));
- 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,
- &rx_status);
- break;
- }
- default:
- break;
-
- }
-}
-
-/* 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 iwl_rx_packet *pkt = (struct iwl_rx_packet *)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));
-}
-
-#ifdef CONFIG_IWL4965_HT
-
-/**
- * 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_sta(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 iwl4965_compressed_ba_resp*
- ba_resp)
-
-{
- int i, sh, ack;
- 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_info *info;
-
- 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->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-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");
- return -1;
- }
-
- /* check for success or failure according to the
- * 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++) {
- ack = bitmap & (1 << i);
- successes += !!ack;
- IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
- ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
- agg->start_idx + i);
- }
-
- info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb[0]);
- memset(&info->status, 0, sizeof(info->status));
- info->flags = IEEE80211_TX_STAT_ACK;
- info->flags |= IEEE80211_TX_STAT_AMPDU;
- info->status.ampdu_ack_map = successes;
- info->status.ampdu_ack_len = agg->frame_count;
- iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
-
- 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 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (1 << IWL49_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;
- }
-
- 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));
- iwl_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;
-}
-
-int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
- u8 tid, int txq_id)
-{
- struct iwl_queue *q = &priv->txq[txq_id].q;
- u8 *addr = priv->stations[sta_id].sta.sta.addr;
- struct iwl_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_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 iwl_rx_packet *pkt = (struct iwl_rx_packet *)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;
- 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 (scd_flow >= priv->hw_params.max_txq_num) {
- IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
- return;
- }
-
- txq = &priv->txq[scd_flow];
- agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
-
- /* Find index just before block-ack window */
- index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
-
- /* TODO: Need to get this copy more safely - now good for debug */
-
- 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%llx, scd_flow = "
- "%d, scd_ssn = %d\n",
- ba_resp->tid,
- 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%llx \n",
- agg->start_idx,
- (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);
-
- /* 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)) {
- /* calculate mac80211 ampdu sw queue to wake */
- int ampdu_q =
- scd_flow - IWL_BACK_QUEUE_FIRST_ID + priv->hw->queues;
- int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
- priv->stations[ba_resp->sta_id].
- tid[ba_resp->tid].tfds_in_queue -= freed;
- if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
- priv->mac80211_registered &&
- agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
- ieee80211_wake_queue(priv->hw, ampdu_q);
- 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)
-{
- u32 tbl_dw_addr;
- u32 tbl_dw;
- u16 scd_q2ratid;
-
- scd_q2ratid = ra_tid & IWL49_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
-
- tbl_dw_addr = priv->scd_base_addr +
- IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
-
- tbl_dw = iwl_read_targ_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);
/**
* iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
*
- * NOTE: txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID,
+ * NOTE: txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE,
* 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,
- u16 ssn_idx)
+static int iwl4965_txq_agg_enable(struct iwl_priv *priv, int txq_id,
+ int tx_fifo, int sta_id, int tid, u16 ssn_idx)
{
unsigned long flags;
- int rc;
+ int ret;
u16 ra_tid;
- 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);
+ if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
+ (IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES <= txq_id)) {
+ IWL_WARN(priv,
+ "queue number out of range: %d, must be %d to %d\n",
+ txq_id, IWL49_FIRST_AMPDU_QUEUE,
+ IWL49_FIRST_AMPDU_QUEUE + IWL49_NUM_AMPDU_QUEUES - 1);
+ return -EINVAL;
+ }
ra_tid = BUILD_RAxTID(sta_id, tid);
/* Modify device's station table to Tx this TID */
- iwl4965_sta_modify_enable_tid_tx(priv, sta_id, tid);
+ iwl_sta_tx_modify_enable_tid(priv, sta_id, tid);
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_nic_access(priv);
- if (rc) {
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
/* Stop this Tx queue before configuring it */
return 0;
}
-#endif /* CONFIG_IWL4965_HT */
-
-
-#ifdef CONFIG_IWL4965_HT
-static int iwl4965_rx_agg_start(struct iwl_priv *priv,
- const u8 *addr, int tid, u16 ssn)
-{
- unsigned long flags;
- int sta_id;
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
- priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC);
-}
-
-static int iwl4965_rx_agg_stop(struct iwl_priv *priv,
- const u8 *addr, int tid)
-{
- unsigned long flags;
- int sta_id;
-
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
- priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC);
-}
-
-/*
- * 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_params.max_txq_num; txq_id++)
- if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk))
- return txq_id;
- return -1;
-}
-
-static int iwl4965_tx_agg_start(struct ieee80211_hw *hw, const u8 *ra,
- 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;
- DECLARE_MAC_BUF(mac);
-
- if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
- tx_fifo = default_tid_to_tx_fifo[tid];
- else
- return -EINVAL;
-
- IWL_WARNING("%s on ra = %s tid = %d\n",
- __func__, print_mac(mac, ra), tid);
-
- sta_id = iwl_find_station(priv, ra);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- 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_lock_irqsave(&priv->sta_lock, flags);
- tid_data = &priv->stations[sta_id].tid[tid];
- ssn = SEQ_TO_SN(tid_data->seq_number);
- tid_data->agg.txq_id = txq_id;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- *start_seq_num = 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, ra, 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;
-}
-
-static int iwl4965_tx_agg_stop(struct ieee80211_hw *hw, const u8 *ra, 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 ret, write_ptr, read_ptr;
- unsigned long flags;
- DECLARE_MAC_BUF(mac);
-
- if (!ra) {
- IWL_ERROR("ra = NULL\n");
- return -EINVAL;
- }
-
- if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
- tx_fifo_id = default_tid_to_tx_fifo[tid];
- else
- return -EINVAL;
-
- sta_id = iwl_find_station(priv, ra);
-
- 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;
- }
-
- IWL_DEBUG_HT("HW queue is empty\n");
- priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
-
- 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);
-
- if (ret)
- return ret;
-
- ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, ra, tid);
-
- return 0;
-}
-
-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;
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n",
- print_mac(mac, addr), tid);
-
- switch (action) {
- case IEEE80211_AMPDU_RX_START:
- IWL_DEBUG_HT("start Rx\n");
- return iwl4965_rx_agg_start(priv, addr, tid, *ssn);
- case IEEE80211_AMPDU_RX_STOP:
- IWL_DEBUG_HT("stop Rx\n");
- return iwl4965_rx_agg_stop(priv, addr, tid);
- case IEEE80211_AMPDU_TX_START:
- IWL_DEBUG_HT("start Tx\n");
- return iwl4965_tx_agg_start(hw, addr, tid, ssn);
- case IEEE80211_AMPDU_TX_STOP:
- IWL_DEBUG_HT("stop Tx\n");
- return iwl4965_tx_agg_stop(hw, addr, tid);
- default:
- IWL_DEBUG_HT("unknown\n");
- return -EINVAL;
- break;
- }
- return 0;
-}
-#endif /* CONFIG_IWL4965_HT */
-
static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len)
{
return (u16)sizeof(struct iwl4965_addsta_cmd);
}
-#ifdef CONFIG_IWL4965_HT
static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
{
- __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
- tx_resp->frame_count);
- return le32_to_cpu(*scd_ssn) & MAX_SN;
-
+ return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
}
/**
- * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
+ * iwl4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue
*/
static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
struct iwl_ht_agg *agg,
- struct iwl4965_tx_resp_agg *tx_resp,
- u16 start_idx)
+ struct iwl4965_tx_resp *tx_resp,
+ int txq_id, u16 start_idx)
{
u16 status;
- struct agg_tx_status *frame_status = &tx_resp->status;
+ struct agg_tx_status *frame_status = tx_resp->u.agg_status;
struct ieee80211_tx_info *info = NULL;
struct ieee80211_hdr *hdr = NULL;
- int i, sh;
- int txq_id, idx;
+ u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+ int i, sh, idx;
u16 seq;
-
if (agg->wait_for_ba)
IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
agg->frame_count = tx_resp->frame_count;
agg->start_idx = start_idx;
- agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+ agg->rate_n_flags = rate_n_flags;
agg->bitmap = 0;
- /* # frames attempted by Tx command */
+ /* num frames attempted by Tx command */
if (agg->frame_count == 1) {
/* Only one frame was attempted; no block-ack will arrive */
status = le16_to_cpu(frame_status[0].status);
- seq = le16_to_cpu(frame_status[0].sequence);
- idx = SEQ_TO_INDEX(seq);
- txq_id = SEQ_TO_QUEUE(seq);
+ idx = start_idx;
/* FIXME: code repetition */
IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
agg->frame_count, agg->start_idx, idx);
info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
- info->status.retry_count = tx_resp->failure_frame;
+ info->status.rates[0].count = tx_resp->failure_frame + 1;
info->flags &= ~IEEE80211_TX_CTL_AMPDU;
- info->flags |= iwl_is_tx_success(status)?
+ info->flags |= iwl_is_tx_success(status) ?
IEEE80211_TX_STAT_ACK : 0;
- iwl4965_hwrate_to_tx_control(priv,
- le32_to_cpu(tx_resp->rate_n_flags),
- info);
+ iwl_hwrate_to_tx_control(priv, rate_n_flags, info);
/* FIXME: code repetition end */
IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
status & 0xff, tx_resp->failure_frame);
- IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
- iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
+ IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags);
agg->wait_for_ba = 0;
} else {
bitmap = bitmap << sh;
sh = 0;
}
- bitmap |= (1 << sh);
- IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
- start, (u32)(bitmap & 0xFFFFFFFF));
+ bitmap |= 1ULL << sh;
+ IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%llx\n",
+ start, (unsigned long long)bitmap);
}
agg->bitmap = bitmap;
agg->start_idx = start;
- agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
agg->frame_count, agg->start_idx,
(unsigned long long)agg->bitmap);
}
return 0;
}
-#endif
/**
* iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
int txq_id = SEQ_TO_QUEUE(sequence);
int index = SEQ_TO_INDEX(sequence);
struct iwl_tx_queue *txq = &priv->txq[txq_id];
+ struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info;
struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
- u32 status = le32_to_cpu(tx_resp->status);
-#ifdef CONFIG_IWL4965_HT
- int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
- u16 fc;
- struct ieee80211_hdr *hdr;
+ u32 status = le32_to_cpu(tx_resp->u.status);
+ int tid = MAX_TID_COUNT;
+ int sta_id;
+ int freed;
u8 *qc = NULL;
-#endif
if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
memset(&info->status, 0, sizeof(info->status));
-#ifdef CONFIG_IWL4965_HT
hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
- fc = le16_to_cpu(hdr->frame_control);
- if (ieee80211_is_qos_data(fc)) {
- qc = ieee80211_get_qos_ctrl(hdr, ieee80211_get_hdrlen(fc));
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
}
const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
struct iwl_ht_agg *agg = NULL;
- if (!qc)
- return;
+ WARN_ON(!qc);
agg = &priv->stations[sta_id].tid[tid].agg;
- iwl4965_tx_status_reply_tx(priv, agg,
- (struct iwl4965_tx_resp_agg *)tx_resp, index);
+ iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
- if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) {
- /* TODO: send BAR */
- }
+ /* check if BAR is needed */
+ if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status))
+ info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
if (txq->q.read_ptr != (scd_ssn & 0xff)) {
- int freed, ampdu_q;
index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
"%d index %d\n", scd_ssn , index);
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
- if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
- txq_id >= 0 && priv->mac80211_registered &&
- agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
- /* calculate mac80211 ampdu sw queue to wake */
- ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID +
- priv->hw->queues;
+ if (priv->mac80211_registered &&
+ (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
+ (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
if (agg->state == IWL_AGG_OFF)
ieee80211_wake_queue(priv->hw, txq_id);
else
- ieee80211_wake_queue(priv->hw, ampdu_q);
+ ieee80211_wake_queue(priv->hw,
+ txq->swq_id);
}
- iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
}
} else {
-#endif /* CONFIG_IWL4965_HT */
-
- info->status.retry_count = tx_resp->failure_frame;
- info->flags |= iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
- iwl4965_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),
- info);
-
- IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
- "retries %d\n", txq_id, iwl_get_tx_fail_reason(status),
- status, le32_to_cpu(tx_resp->rate_n_flags),
- tx_resp->failure_frame);
-
- IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
-#ifdef CONFIG_IWL4965_HT
- if (index != -1) {
- int freed = iwl_tx_queue_reclaim(priv, txq_id, index);
- if (tid != MAX_TID_COUNT)
+ info->status.rates[0].count = tx_resp->failure_frame + 1;
+ info->flags |= iwl_is_tx_success(status) ?
+ IEEE80211_TX_STAT_ACK : 0;
+ iwl_hwrate_to_tx_control(priv,
+ le32_to_cpu(tx_resp->rate_n_flags),
+ info);
+
+ IWL_DEBUG_TX_REPLY("TXQ %d status %s (0x%08x) "
+ "rate_n_flags 0x%x retries %d\n",
+ txq_id,
+ iwl_get_tx_fail_reason(status), status,
+ le32_to_cpu(tx_resp->rate_n_flags),
+ tx_resp->failure_frame);
+
+ freed = iwl_tx_queue_reclaim(priv, txq_id, index);
+ if (qc && likely(sta_id != IWL_INVALID_STATION))
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
- if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
- (txq_id >= 0) && priv->mac80211_registered)
+
+ if (priv->mac80211_registered &&
+ (iwl_queue_space(&txq->q) > txq->q.low_mark))
ieee80211_wake_queue(priv->hw, txq_id);
- if (tid != MAX_TID_COUNT)
- iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
- }
}
-#endif /* CONFIG_IWL4965_HT */
+
+ if (qc && likely(sta_id != IWL_INVALID_STATION))
+ iwl_txq_check_empty(priv, sta_id, tid, txq_id);
if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
}
+static int iwl4965_calc_rssi(struct iwl_priv *priv,
+ struct iwl_rx_phy_res *rx_resp)
+{
+ /* data from PHY/DSP regarding signal strength, etc.,
+ * contents are always there, not configurable by host. */
+ struct iwl4965_rx_non_cfg_phy *ncphy =
+ (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
+ u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL49_AGC_DB_MASK)
+ >> IWL49_AGC_DB_POS;
+
+ u32 valid_antennae =
+ (le16_to_cpu(rx_resp->phy_flags) & IWL49_RX_PHY_FLAGS_ANTENNAE_MASK)
+ >> IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET;
+ u8 max_rssi = 0;
+ u32 i;
+
+ /* Find max rssi among 3 possible receivers.
+ * These values are measured by the digital signal processor (DSP).
+ * They should stay fairly constant even as the signal strength varies,
+ * if the radio's automatic gain control (AGC) is working right.
+ * AGC value (see below) will provide the "interesting" info. */
+ for (i = 0; i < 3; i++)
+ if (valid_antennae & (1 << i))
+ max_rssi = max(ncphy->rssi_info[i << 1], max_rssi);
+
+ IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n",
+ ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4],
+ max_rssi, agc);
+
+ /* dBm = max_rssi dB - agc dB - constant.
+ * Higher AGC (higher radio gain) means lower signal. */
+ return max_rssi - agc - IWL49_RSSI_OFFSET;
+}
+
/* Set up 4965-specific Rx frame reply handlers */
static void iwl4965_rx_handler_setup(struct iwl_priv *priv)
{
/* Legacy Rx frames */
- 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[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx;
-
+ priv->rx_handlers[REPLY_RX] = iwl_rx_reply_rx;
+ /* Tx response */
priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
-
-#ifdef CONFIG_IWL4965_HT
- priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
-#endif /* CONFIG_IWL4965_HT */
}
-void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv)
+static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
{
INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work);
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
- INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work);
-#endif
- init_timer(&priv->statistics_periodic);
- priv->statistics_periodic.data = (unsigned long)priv;
- priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
}
-void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv)
+static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
{
- del_timer_sync(&priv->statistics_periodic);
-
- cancel_delayed_work(&priv->init_alive_start);
+ cancel_work_sync(&priv->txpower_work);
}
static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
.get_hcmd_size = iwl4965_get_hcmd_size,
.build_addsta_hcmd = iwl4965_build_addsta_hcmd,
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
.chain_noise_reset = iwl4965_chain_noise_reset,
.gain_computation = iwl4965_gain_computation,
-#endif
+ .rts_tx_cmd_flag = iwl4965_rts_tx_cmd_flag,
+ .calc_rssi = iwl4965_calc_rssi,
};
static struct iwl_lib_ops iwl4965_lib = {
.set_hw_params = iwl4965_hw_set_hw_params,
- .alloc_shared_mem = iwl4965_alloc_shared_mem,
- .free_shared_mem = iwl4965_free_shared_mem,
- .shared_mem_rx_idx = iwl4965_shared_mem_rx_idx,
.txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
.txq_set_sched = iwl4965_txq_set_sched,
+ .txq_agg_enable = iwl4965_txq_agg_enable,
+ .txq_agg_disable = iwl4965_txq_agg_disable,
.rx_handler_setup = iwl4965_rx_handler_setup,
+ .setup_deferred_work = iwl4965_setup_deferred_work,
+ .cancel_deferred_work = iwl4965_cancel_deferred_work,
.is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr,
.alive_notify = iwl4965_alive_notify,
.init_alive_start = iwl4965_init_alive_start,
.reset = iwl4965_apm_reset,
.stop = iwl4965_apm_stop,
.config = iwl4965_nic_config,
- .set_pwr_src = iwl4965_set_pwr_src,
+ .set_pwr_src = iwl_set_pwr_src,
},
.eeprom_ops = {
.regulatory_bands = {
.verify_signature = iwlcore_eeprom_verify_signature,
.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
.release_semaphore = iwlcore_eeprom_release_semaphore,
- .check_version = iwl4965_eeprom_check_version,
+ .calib_version = iwl4965_eeprom_calib_version,
.query_addr = iwlcore_eeprom_query_addr,
},
- .radio_kill_sw = iwl4965_radio_kill_sw,
- .set_power = iwl4965_set_power,
- .update_chain_flags = iwl4965_update_chain_flags,
+ .send_tx_power = iwl4965_send_tx_power,
+ .update_chain_flags = iwl_update_chain_flags,
+ .temperature = iwl4965_temperature_calib,
};
static struct iwl_ops iwl4965_ops = {
struct iwl_cfg iwl4965_agn_cfg = {
.name = "4965AGN",
- .fw_name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode",
+ .fw_name_pre = IWL4965_FW_PRE,
+ .ucode_api_max = IWL4965_UCODE_API_MAX,
+ .ucode_api_min = IWL4965_UCODE_API_MIN,
.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
.eeprom_size = IWL4965_EEPROM_IMG_SIZE,
+ .eeprom_ver = EEPROM_4965_EEPROM_VERSION,
+ .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
.ops = &iwl4965_ops,
.mod_params = &iwl4965_mod_params,
};
+/* Module firmware */
+MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX));
+
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(swcrypto, "using crypto in software (default 0 [hardware])");
+module_param_named(debug, iwl4965_mod_params.debug, uint, 0444);
MODULE_PARM_DESC(debug, "debug output mask");
module_param_named(
disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444);
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");
+/* 11n */
+module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, 0444);
+MODULE_PARM_DESC(11n_disable, "disable 11n 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_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, 0444);
MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff