/******************************************************************************
*
- * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2009 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
* 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"
+#include "iwl-agn-led.h"
+
+static int iwl4965_send_tx_power(struct iwl_priv *priv);
+static int iwl4965_hw_get_temperature(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,
.amsdu_size_8K = 1,
+ .restart_fw = 1,
/* the rest are 0 by default */
};
-static void iwl4965_hw_card_show_info(struct iwl_priv *priv);
-
-#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)
{
u32 reg;
u32 val;
- IWL_DEBUG_INFO("Begin verify bsm\n");
+ IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
/* verify BSM SRAM contents */
val = iwl_read_prph(priv, BSM_WR_DWCOUNT_REG);
reg += sizeof(u32), image++) {
val = iwl_read_prph(priv, reg);
if (val != le32_to_cpu(*image)) {
- IWL_ERROR("BSM uCode verification failed at "
+ IWL_ERR(priv, "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,
}
}
- IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+ IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
return 0;
}
u32 reg_offset;
int ret;
- IWL_DEBUG_INFO("Begin load bsm\n");
+ IWL_DEBUG_INFO(priv, "Begin load bsm\n");
+
+ 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
* in host DRAM ... host DRAM physical address bits 35:4 for 4965.
- * NOTE: iwl4965_initialize_alive_start() will replace these values,
+ * NOTE: iwl_init_alive_start() will replace these values,
* after the "initialize" uCode has run, to point to
- * runtime/protocol instructions and backup data cache. */
+ * 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, reg_offset, le32_to_cpu(*image));
ret = iwl4965_verify_bsm(priv);
- if (ret) {
- iwl_release_nic_access(priv);
+ if (ret)
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_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,
udelay(10);
}
if (i < 100)
- IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
+ IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
else {
- IWL_ERROR("BSM write did not complete!\n");
+ IWL_ERR(priv, "BSM write did not complete!\n");
return -EIO;
}
* (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 is_fat_channel(__le32 rxon_flags)
+/**
+ * iwl4965_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
{
- return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
- (rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK);
-}
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ int ret = 0;
-int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags)
-{
- int idx = 0;
+ /* bits 35:4 for 4965 */
+ pinst = priv->ucode_code.p_addr >> 4;
+ pdata = priv->ucode_data_backup.p_addr >> 4;
- /* 4965 HT rate format */
- if (rate_n_flags & RATE_MCS_HT_MSK) {
- idx = (rate_n_flags & 0xff);
+ /* Tell bootstrap uCode where to find image to load */
+ 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_DATA_BYTECOUNT_REG,
+ priv->ucode_data.len);
- if (idx >= IWL_RATE_MIMO2_6M_PLCP)
- idx = idx - IWL_RATE_MIMO2_6M_PLCP;
+ /* 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);
+ IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
- 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;
+ return ret;
+}
- /* 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;
+/**
+ * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
+ *
+ * Called after REPLY_ALIVE notification received from "initialize" uCode.
+ *
+ * The 4965 "initialize" ALIVE reply contains calibration data for:
+ * Voltage, temperature, and MIMO tx gain correction, now stored in priv
+ * (3945 does not contain this data).
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+*/
+static void iwl4965_init_alive_start(struct iwl_priv *priv)
+{
+ /* Check alive response for "valid" sign from uCode */
+ if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
+ goto restart;
+ }
+
+ /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "initialize" alive if code weren't properly loaded. */
+ if (iwl_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
+ goto restart;
+ }
+
+ /* Calculate temperature */
+ 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"
+ * notification. */
+ IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
+ if (iwl4965_set_ucode_ptrs(priv)) {
+ /* Runtime instruction load won't happen;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
+ goto restart;
}
+ return;
- return -1;
+restart:
+ queue_work(priv->workqueue, &priv->restart);
}
-/**
- * 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)
+static bool is_ht40_channel(__le32 rxon_flags)
{
- 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_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];
+ int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK)
+ >> RXON_FLG_CHANNEL_MODE_POS;
+ return ((chan_mod == CHANNEL_MODE_PURE_40) ||
+ (chan_mod == CHANNEL_MODE_MIXED));
}
-int iwl4965_hw_rxq_stop(struct iwl_priv *priv)
+/*
+ * EEPROM handlers
+ */
+static u16 iwl4965_eeprom_calib_version(struct iwl_priv *priv)
{
- int rc;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_nic_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- /* 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_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
+ return iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET);
}
/*
- * EEPROM handlers
+ * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
+ * must be called under priv->lock and mac access
*/
-
-static int iwl4965_eeprom_check_version(struct iwl_priv *priv)
+static void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask)
{
- 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;
-
+ iwl_write_prph(priv, IWL49_SCD_TXFACT, mask);
}
-int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
+
+static void iwl4965_nic_config(struct iwl_priv *priv)
{
- int ret;
unsigned long flags;
+ u16 radio_cfg;
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);
+ radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
- 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);
- }
+ /* write radio config values to register */
+ if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX)
+ iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
+ EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
+ EEPROM_RF_CFG_DASH_MSK(radio_cfg));
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
+ /* set CSR_HW_CONFIG_REG for uCode use */
+ iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+ CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
- return ret;
+ priv->calib_info = (struct iwl_eeprom_calib_info *)
+ iwl_eeprom_query_addr(priv, EEPROM_4965_CALIB_TXPOWER_OFFSET);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
}
-static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+/* 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. */
+static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
{
- int ret;
- unsigned long flags;
- unsigned int rb_size;
+ struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
- spin_lock_irqsave(&priv->lock, flags);
- ret = iwl_grab_nic_access(priv);
- if (ret) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
+ if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
+ struct iwl_calib_diff_gain_cmd cmd;
+
+ memset(&cmd, 0, sizeof(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;
+ if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+ sizeof(cmd), &cmd))
+ IWL_ERR(priv,
+ "Could not send REPLY_PHY_CALIBRATION_CMD\n");
+ data->state = IWL_CHAIN_NOISE_ACCUMULATE;
+ IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
}
+}
- 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;
+static void iwl4965_gain_computation(struct iwl_priv *priv,
+ u32 *average_noise,
+ u16 min_average_noise_antenna_i,
+ u32 min_average_noise,
+ u8 default_chain)
+{
+ int i, ret;
+ struct iwl_chain_noise_data *data = &priv->chain_noise_data;
- /* Stop Rx DMA */
- iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+ data->delta_gain_code[min_average_noise_antenna_i] = 0;
- /* Reset driver's Rx queue write index */
- iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
+ for (i = default_chain; i < NUM_RX_CHAINS; i++) {
+ s32 delta_g = 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);
+ if (!(data->disconn_array[i]) &&
+ (data->delta_gain_code[i] ==
+ CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) {
+ delta_g = average_noise[i] - min_average_noise;
+ data->delta_gain_code[i] = (u8)((delta_g * 10) / 15);
+ data->delta_gain_code[i] =
+ min(data->delta_gain_code[i],
+ (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
- /* 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);
+ data->delta_gain_code[i] =
+ (data->delta_gain_code[i] | (1 << 2));
+ } else {
+ data->delta_gain_code[i] = 0;
+ }
+ }
+ IWL_DEBUG_CALIB(priv, "delta_gain_codes: a %d b %d c %d\n",
+ data->delta_gain_code[0],
+ data->delta_gain_code[1],
+ data->delta_gain_code[2]);
- /* 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));
+ /* Differential gain gets sent to uCode only once */
+ if (!data->radio_write) {
+ struct iwl_calib_diff_gain_cmd cmd;
+ data->radio_write = 1;
- /*
- * iwl_write32(priv,CSR_INT_COAL_REG,0);
- */
+ memset(&cmd, 0, sizeof(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];
+ ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+ sizeof(cmd), &cmd);
+ if (ret)
+ IWL_DEBUG_CALIB(priv, "fail sending cmd "
+ "REPLY_PHY_CALIBRATION_CMD \n");
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
+ /* TODO we might want recalculate
+ * rx_chain in rxon cmd */
- return 0;
+ /* Mark so we run this algo only once! */
+ data->state = IWL_CHAIN_NOISE_CALIBRATED;
+ }
+ data->chain_noise_a = 0;
+ data->chain_noise_b = 0;
+ data->chain_noise_c = 0;
+ data->chain_signal_a = 0;
+ data->chain_signal_b = 0;
+ data->chain_signal_c = 0;
+ data->beacon_count = 0;
}
-/* Tell 4965 where to find the "keep warm" buffer */
-static int iwl4965_kw_init(struct iwl_priv *priv)
+static void iwl4965_bg_txpower_work(struct work_struct *work)
{
- unsigned long flags;
- int rc;
+ struct iwl_priv *priv = container_of(work, struct iwl_priv,
+ txpower_work);
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_nic_access(priv);
- if (rc)
- goto out;
+ /* If a scan happened to start before we got here
+ * then just return; the statistics notification will
+ * kick off another scheduled work to compensate for
+ * any temperature delta we missed here. */
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status))
+ return;
- iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG,
- priv->kw.dma_addr >> 4);
- iwl_release_nic_access(priv);
-out:
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
-}
+ mutex_lock(&priv->mutex);
-static int iwl4965_kw_alloc(struct iwl_priv *priv)
-{
- struct pci_dev *dev = priv->pci_dev;
- struct iwl4965_kw *kw = &priv->kw;
+ /* 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_send_tx_power(priv);
- kw->size = IWL4965_KW_SIZE; /* TBW need set somewhere else */
- kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr);
- if (!kw->v_addr)
- return -ENOMEM;
+ /* Update last_temperature to keep is_calib_needed from running
+ * when it isn't needed... */
+ priv->last_temperature = priv->temperature;
- return 0;
+ mutex_unlock(&priv->mutex);
}
-/**
- * iwl4965_kw_free - Free the "keep warm" buffer
+/*
+ * Acquire priv->lock before calling this function !
*/
-static void iwl4965_kw_free(struct iwl_priv *priv)
+static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
{
- struct pci_dev *dev = priv->pci_dev;
- struct iwl4965_kw *kw = &priv->kw;
-
- if (kw->v_addr) {
- pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr);
- memset(kw, 0, sizeof(*kw));
- }
+ iwl_write_direct32(priv, HBUS_TARG_WRPTR,
+ (index & 0xff) | (txq_id << 8));
+ iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index);
}
/**
- * iwl4965_txq_ctx_reset - Reset TX queue context
- * Destroys all DMA structures and initialise them again
+ * 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
*
- * @param priv
- * @return error code
+ * NOTE: Acquire priv->lock before calling this function !
*/
-static int iwl4965_txq_ctx_reset(struct iwl_priv *priv)
+static void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
+ struct iwl_tx_queue *txq,
+ int tx_fifo_id, int scd_retry)
{
- int rc = 0;
- int txq_id, slots_num;
- unsigned long flags;
-
- iwl4965_kw_free(priv);
-
- /* Free all tx/cmd queues and keep-warm buffer */
- iwl4965_hw_txq_ctx_free(priv);
-
- /* Alloc keep-warm buffer */
- rc = iwl4965_kw_alloc(priv);
- if (rc) {
- IWL_ERROR("Keep Warm allocation failed");
- goto error_kw;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
+ int txq_id = txq->q.id;
- rc = iwl_grab_nic_access(priv);
- if (unlikely(rc)) {
- IWL_ERROR("TX reset failed");
- spin_unlock_irqrestore(&priv->lock, flags);
- goto error_reset;
- }
+ /* Find out whether to activate Tx queue */
+ int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
- /* 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);
+ /* Set up and activate */
+ iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
+ (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
+ (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) |
+ (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) |
+ (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
+ IWL49_SCD_QUEUE_STTS_REG_MSK);
- /* 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;
- }
+ txq->sched_retry = scd_retry;
- /* 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 = 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);
- goto error;
- }
- }
+ IWL_DEBUG_INFO(priv, "%s %s Queue %d on AC %d\n",
+ active ? "Activate" : "Deactivate",
+ scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
+}
- return rc;
+static const u16 default_queue_to_tx_fifo[] = {
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC0,
+ IWL49_CMD_FIFO_NUM,
+ IWL_TX_FIFO_HCCA_1,
+ IWL_TX_FIFO_HCCA_2
+};
- error:
- iwl4965_hw_txq_ctx_free(priv);
- error_reset:
- iwl4965_kw_free(priv);
- error_kw:
- return rc;
-}
-static int iwl4965_apm_init(struct iwl_priv *priv)
+static int iwl4965_alive_notify(struct iwl_priv *priv)
{
+ u32 a;
unsigned long flags;
- int ret = 0;
+ int i, chan;
+ u32 reg_val;
spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
- CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
-
- /* set "initialization complete" bit to move adapter
- * D0U* --> D0A* state */
- 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);
- if (ret < 0) {
- IWL_DEBUG_INFO("Failed to init the card\n");
- goto out;
- }
-
- ret = iwl_grab_nic_access(priv);
- if (ret)
- goto out;
-
- /* enable DMA */
- iwl_write_prph(priv, APMG_CLK_CTRL_REG,
- APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
-
- udelay(20);
-
- iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
-
- iwl_release_nic_access(priv);
-out:
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
-}
-
-
-static void iwl4965_nic_config(struct iwl_priv *priv)
-{
- unsigned long flags;
- u32 val;
- u16 radio_cfg;
- u8 val_link;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if ((priv->rev_id & 0x80) == 0x80 && (priv->rev_id & 0x7f) < 8) {
- pci_read_config_dword(priv->pci_dev, PCI_REG_WUM8, &val);
- /* Enable No Snoop field */
- pci_write_config_dword(priv->pci_dev, PCI_REG_WUM8,
- val & ~(1 << 11));
- }
-
- pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
-
- /* disable L1 entry -- workaround for pre-B1 */
- pci_write_config_byte(priv->pci_dev, PCI_LINK_CTRL, val_link & ~0x02);
-
- radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
-
- /* write radio config values to register */
- if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX)
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
- EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
- EEPROM_RF_CFG_DASH_MSK(radio_cfg));
-
- /* set CSR_HW_CONFIG_REG for uCode use */
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
- CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
-
- priv->calib_info = (struct iwl_eeprom_calib_info *)
- iwl_eeprom_query_addr(priv, EEPROM_4965_CALIB_TXPOWER_OFFSET);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-
-int iwl4965_hw_nic_init(struct iwl_priv *priv)
-{
- unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
-
- /* nic_init */
- priv->cfg->ops->lib->apm_ops.init(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
-
- priv->cfg->ops->lib->apm_ops.config(priv);
-
- iwl4965_hw_card_show_info(priv);
-
- /* end nic_init */
-
- /* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- ret = iwl_rx_queue_alloc(priv);
- if (ret) {
- IWL_ERROR("Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwl_rx_queue_reset(priv, rxq);
-
- iwl_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);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Allocate and init all Tx and Command queues */
- ret = iwl4965_txq_ctx_reset(priv);
- if (ret)
- return ret;
-
- set_bit(STATUS_INIT, &priv->status);
-
- return 0;
-}
-
-int iwl4965_hw_nic_stop_master(struct iwl_priv *priv)
-{
- int rc = 0;
- u32 reg_val;
- 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);
-
- reg_val = iwl_read32(priv, CSR_GP_CNTRL);
-
- if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE ==
- (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE))
- IWL_DEBUG_INFO("Card in power save, master is already "
- "stopped\n");
- else {
- rc = iwl_poll_bit(priv, CSR_RESET,
- CSR_RESET_REG_FLAG_MASTER_DISABLED,
- CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
- if (rc < 0) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
- IWL_DEBUG_INFO("stop master\n");
-
- return rc;
-}
-
-/**
- * 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;
-
- /* 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_nic_access(priv)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- continue;
- }
-
- iwl_write_direct32(priv,
- FH_TCSR_CHNL_TX_CONFIG_REG(txq_id), 0x0);
- iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG,
- FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE
- (txq_id), 200);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- /* Deallocate memory for all Tx queues */
- iwl4965_hw_txq_ctx_free(priv);
-}
-
-int iwl4965_hw_nic_reset(struct iwl_priv *priv)
-{
- int rc = 0;
- unsigned long flags;
-
- iwl4965_hw_nic_stop_master(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- 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);
- rc = iwl_poll_bit(priv, CSR_RESET,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25);
-
- udelay(10);
-
- rc = iwl_grab_nic_access(priv);
- if (!rc) {
- 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_prph(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
-
- iwl_release_nic_access(priv);
- }
-
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- wake_up_interruptible(&priv->wait_command_queue);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return rc;
-
-}
-
-#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. */
-static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
-{
- 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;
-
- 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;
- if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
- sizeof(cmd), &cmd))
- IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n");
- data->state = IWL_CHAIN_NOISE_ACCUMULATE;
- IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
- }
-}
-
-static void iwl4965_gain_computation(struct iwl_priv *priv,
- u32 *average_noise,
- u16 min_average_noise_antenna_i,
- u32 min_average_noise)
-{
- int i, ret;
- struct iwl_chain_noise_data *data = &priv->chain_noise_data;
-
- data->delta_gain_code[min_average_noise_antenna_i] = 0;
-
- for (i = 0; i < NUM_RX_CHAINS; i++) {
- s32 delta_g = 0;
-
- if (!(data->disconn_array[i]) &&
- (data->delta_gain_code[i] ==
- CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) {
- delta_g = average_noise[i] - min_average_noise;
- data->delta_gain_code[i] = (u8)((delta_g * 10) / 15);
- data->delta_gain_code[i] =
- min(data->delta_gain_code[i],
- (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
-
- data->delta_gain_code[i] =
- (data->delta_gain_code[i] | (1 << 2));
- } else {
- data->delta_gain_code[i] = 0;
- }
- }
- IWL_DEBUG_CALIB("delta_gain_codes: a %d b %d c %d\n",
- data->delta_gain_code[0],
- data->delta_gain_code[1],
- data->delta_gain_code[2]);
-
- /* Differential gain gets sent to uCode only once */
- if (!data->radio_write) {
- struct iwl4965_calibration_cmd cmd;
- data->radio_write = 1;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.opCode = 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];
- ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
- sizeof(cmd), &cmd);
- if (ret)
- IWL_DEBUG_CALIB("fail sending cmd "
- "REPLY_PHY_CALIBRATION_CMD \n");
-
- /* TODO we might want recalculate
- * rx_chain in rxon cmd */
-
- /* Mark so we run this algo only once! */
- data->state = IWL_CHAIN_NOISE_CALIBRATED;
- }
- data->chain_noise_a = 0;
- data->chain_noise_b = 0;
- data->chain_noise_c = 0;
- data->chain_signal_a = 0;
- data->chain_signal_b = 0;
- data->chain_signal_c = 0;
- data->beacon_count = 0;
-}
-
-static void iwl4965_bg_sensitivity_work(struct work_struct *work)
-{
- 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);
- }
-
- mutex_unlock(&priv->mutex);
- return;
-}
-#endif /*CONFIG_IWL4965_RUN_TIME_CALIB*/
-
-static void iwl4965_bg_txpower_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- txpower_work);
-
- /* If a scan happened to start before we got here
- * then just return; the statistics notification will
- * kick off another scheduled work to compensate for
- * any temperature delta we missed here. */
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
-
- /* Regardless of if we are assocaited, we must reconfigure the
- * TX power since frames can be sent on non-radar channels while
- * not associated */
- iwl4965_hw_reg_send_txpower(priv);
-
- /* Update last_temperature to keep is_calib_needed from running
- * when it isn't needed... */
- priv->last_temperature = priv->temperature;
-
- mutex_unlock(&priv->mutex);
-}
-
-/*
- * Acquire priv->lock before calling this function !
- */
-static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
-{
- iwl_write_direct32(priv, HBUS_TARG_WRPTR,
- (index & 0xff) | (txq_id << 8));
- iwl_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index);
-}
-
-/**
- * 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 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;
-
- /* Set up and activate */
- iwl_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
- (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
- (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) |
- (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) |
- (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
- IWL49_SCD_QUEUE_STTS_REG_MSK);
-
- txq->sched_retry = scd_retry;
-
- IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
- active ? "Activate" : "Deactivate",
- scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
-}
-
-static const u16 default_queue_to_tx_fifo[] = {
- IWL_TX_FIFO_AC3,
- IWL_TX_FIFO_AC2,
- IWL_TX_FIFO_AC1,
- IWL_TX_FIFO_AC0,
- IWL49_CMD_FIFO_NUM,
- IWL_TX_FIFO_HCCA_1,
- IWL_TX_FIFO_HCCA_2
-};
-
-static inline void iwl4965_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
-{
- set_bit(txq_id, &priv->txq_ctx_active_msk);
-}
-
-static inline void iwl4965_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
-{
- clear_bit(txq_id, &priv->txq_ctx_active_msk);
-}
-
-int iwl4965_alive_notify(struct iwl_priv *priv)
-{
- u32 a;
- int i = 0;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&priv->lock, flags);
-
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
- memset(&(priv->sensitivity_data), 0,
- sizeof(struct iwl_sensitivity_data));
- memset(&(priv->chain_noise_data), 0,
- sizeof(struct iwl_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_IWL4965_RUN_TIME_CALIB*/
- ret = iwl_grab_nic_access(priv);
- if (ret) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
- }
/* Clear 4965's internal Tx Scheduler data base */
priv->scd_base_addr = iwl_read_prph(priv, IWL49_SCD_SRAM_BASE_ADDR);
iwl_write_targ_mem(priv, a, 0);
for (; a < priv->scd_base_addr + IWL49_SCD_TRANSLATE_TBL_OFFSET; a += 4)
iwl_write_targ_mem(priv, a, 0);
- for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
+ for (; a < priv->scd_base_addr +
+ IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(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);
+ 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 */
- iwl_write_prph(priv, IWL49_SCD_TXFACT,
- SCD_TXFACT_REG_TXFIFO_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);
/* 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);
+ iwl_txq_ctx_activate(priv, i);
iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
}
- iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- /* Ask for statistics now, the uCode will send statistics notification
- * periodically after association */
- iwl_send_statistics_request(priv, CMD_ASYNC);
- return ret;
+ return 0;
}
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
.min_nrg_cck = 97,
- .max_nrg_cck = 0,
+ .max_nrg_cck = 0, /* not used, set to 0 */
.auto_corr_min_ofdm = 85,
.auto_corr_min_ofdm_mrc = 170,
.nrg_th_cck = 100,
.nrg_th_ofdm = 100,
+
+ .barker_corr_th_min = 190,
+ .barker_corr_th_min_mrc = 390,
+ .nrg_th_cca = 62,
};
-#endif
+
+static void iwl4965_set_ct_threshold(struct iwl_priv *priv)
+{
+ /* want Kelvin */
+ priv->hw_params.ct_kill_threshold =
+ CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
+}
/**
* iwl4965_hw_set_hw_params
*
* Called when initializing driver
*/
-int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
-{
-
- if ((priv->cfg->mod_params->num_of_queues > IWL49_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, IWL49_NUM_QUEUES);
- return -EINVAL;
- }
-
- 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.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;
+static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
+{
+ if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
+ priv->cfg->mod_params->num_of_queues <= IWL49_NUM_QUEUES)
+ priv->cfg->num_of_queues =
+ priv->cfg->mod_params->num_of_queues;
+
+ priv->hw_params.max_txq_num = priv->cfg->num_of_queues;
+ priv->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM;
+ priv->hw_params.scd_bc_tbls_size =
+ priv->cfg->num_of_queues *
+ sizeof(struct iwl4965_scd_bc_tbl);
+ priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
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.fat_channel = BIT(IEEE80211_BAND_5GHZ);
-
- priv->hw_params.tx_chains_num = 2;
- priv->hw_params.rx_chains_num = 2;
- priv->hw_params.valid_tx_ant = ANT_A | ANT_B;
- 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
+ priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ);
- return 0;
-}
-
-/**
- * iwl4965_hw_txq_ctx_free - Free TXQ Context
- *
- * Destroy all TX DMA queues and structures
- */
-void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv)
-{
- int txq_id;
-
- /* Tx queues */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
- iwl4965_tx_queue_free(priv, &priv->txq[txq_id]);
+ priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
- /* Keep-warm buffer */
- iwl4965_kw_free(priv);
-}
-
-/**
- * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
- *
- * Does NOT advance any TFD circular buffer read/write indexes
- * Does NOT free the TFD itself (which is within circular buffer)
- */
-int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq)
-{
- 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;
+ priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
+ priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
+ priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
+ priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
+ if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
+ priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
- /* Host command buffers stay mapped in memory, nothing to clean */
- if (txq->q.id == IWL_CMD_QUEUE_NUM)
- return 0;
-
- /* 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);
- /* @todo issue fatal error, it is quite serious situation */
- return 0;
- }
+ priv->hw_params.sens = &iwl4965_sensitivity;
- /* 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;
-
- if (is_odd)
- pci_unmap_single(
- dev,
- IWL_GET_BITS(bd->pa[index], tb2_addr_lo16) |
- (IWL_GET_BITS(bd->pa[index],
- tb2_addr_hi20) << 16),
- IWL_GET_BITS(bd->pa[index], tb2_len),
- PCI_DMA_TODEVICE);
-
- else if (i > 0)
- pci_unmap_single(dev,
- le32_to_cpu(bd->pa[index].tb1_addr),
- 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];
-
- dev_kfree_skb(skb);
- txq->txb[txq->q.read_ptr].skb[i] = NULL;
- }
- }
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_ERR(priv, "Tx Power can not find channel %d\n", channel);
return -1;
}
ch_i2 = priv->calib_info->band_info[s].ch2.ch_num;
chan_info->ch_num = (u8) channel;
- IWL_DEBUG_TXPOWER("channel %d subband %d factory cal ch %d & %d\n",
+ IWL_DEBUG_TXPOWER(priv, "channel %d subband %d factory cal ch %d & %d\n",
channel, s, ch_i1, ch_i2);
for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) {
m1->pa_det, ch_i2,
m2->pa_det);
- IWL_DEBUG_TXPOWER
- ("chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m,
- m1->actual_pow, m2->actual_pow, omeas->actual_pow);
- IWL_DEBUG_TXPOWER
- ("chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m,
- m1->gain_idx, m2->gain_idx, omeas->gain_idx);
- IWL_DEBUG_TXPOWER
- ("chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m,
- m1->pa_det, m2->pa_det, omeas->pa_det);
- IWL_DEBUG_TXPOWER
- ("chain %d meas %d T1=%d T2=%d T=%d\n", c, m,
- m1->temperature, m2->temperature,
- omeas->temperature);
+ IWL_DEBUG_TXPOWER(priv,
+ "chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m,
+ m1->actual_pow, m2->actual_pow, omeas->actual_pow);
+ IWL_DEBUG_TXPOWER(priv,
+ "chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m,
+ m1->gain_idx, m2->gain_idx, omeas->gain_idx);
+ IWL_DEBUG_TXPOWER(priv,
+ "chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m,
+ m1->pa_det, m2->pa_det, omeas->pa_det);
+ IWL_DEBUG_TXPOWER(priv,
+ "chain %d meas %d T1=%d T2=%d T=%d\n", c, m,
+ m1->temperature, m2->temperature,
+ omeas->temperature);
}
}
};
static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
- u8 is_fat, u8 ctrl_chan_high,
+ u8 is_ht40, u8 ctrl_chan_high,
struct iwl4965_tx_power_db *tx_power_tbl)
{
u8 saturation_power;
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
+ /* tx_power_user_lmt 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(priv, "chan %d band %d is_ht40 %d\n", channel, band,
+ is_ht40);
- IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band,
- is_fat);
+ ch_info = iwl_get_channel_info(priv, priv->band, channel);
- if (!ch_info)
+ 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_ERR(priv, "Can't find txatten group for channel %d.\n",
+ channel);
return -EINVAL;
+ }
- IWL_DEBUG_TXPOWER("channel %d belongs to txatten group %d\n",
+ IWL_DEBUG_TXPOWER(priv, "channel %d belongs to txatten group %d\n",
channel, txatten_grp);
- if (is_fat) {
+ if (is_ht40) {
if (ctrl_chan_high)
channel -= 2;
else
/* regulatory txpower limits ... reg_limit values are in half-dBm,
* max_power_avg values are in dBm, convert * 2 */
- if (is_fat)
- reg_limit = ch_info->fat_max_power_avg * 2;
+ if (is_ht40)
+ reg_limit = ch_info->ht40_max_power_avg * 2;
else
reg_limit = ch_info->max_power_avg * 2;
voltage_compensation =
iwl4965_get_voltage_compensation(voltage, init_voltage);
- IWL_DEBUG_TXPOWER("curr volt %d eeprom volt %d volt comp %d\n",
+ IWL_DEBUG_TXPOWER(priv, "curr volt %d eeprom volt %d volt comp %d\n",
init_voltage,
voltage, voltage_compensation);
factory_gain_index[c] = measurement->gain_idx;
factory_actual_pwr[c] = measurement->actual_pow;
- IWL_DEBUG_TXPOWER("chain = %d\n", c);
- IWL_DEBUG_TXPOWER("fctry tmp %d, "
+ IWL_DEBUG_TXPOWER(priv, "chain = %d\n", c);
+ IWL_DEBUG_TXPOWER(priv, "fctry tmp %d, "
"curr tmp %d, comp %d steps\n",
factory_temp, current_temp,
temperature_comp[c]);
- IWL_DEBUG_TXPOWER("fctry idx %d, fctry pwr %d\n",
+ IWL_DEBUG_TXPOWER(priv, "fctry idx %d, fctry pwr %d\n",
factory_gain_index[c],
factory_actual_pwr[c]);
}
if (target_power > power_limit)
target_power = power_limit;
- IWL_DEBUG_TXPOWER("rate %d sat %d reg %d usr %d tgt %d\n",
+ IWL_DEBUG_TXPOWER(priv, "rate %d sat %d reg %d usr %d tgt %d\n",
i, saturation_power - back_off_table[i],
current_regulatory, user_target_power,
target_power);
voltage_compensation +
atten_value);
-/* IWL_DEBUG_TXPOWER("calculated txpower index %d\n",
+/* IWL_DEBUG_TXPOWER(priv, "calculated txpower index %d\n",
power_index); */
if (power_index < get_min_power_index(i, band))
/* 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;
}
tx_power.s.dsp_predis_atten[c] =
gain_table[band][power_index].dsp;
- IWL_DEBUG_TXPOWER("chain %d mimo %d index %d "
+ IWL_DEBUG_TXPOWER(priv, "chain %d mimo %d index %d "
"gain 0x%02x dsp %d\n",
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.
+ * Uses the active RXON for channel, band, and characteristics (ht40, high)
+ * 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;
u8 band = 0;
- u8 is_fat = 0;
+ bool is_ht40 = false;
u8 ctrl_chan_high = 0;
if (test_bit(STATUS_SCANNING, &priv->status)) {
/* 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;
}
band = priv->band == IEEE80211_BAND_2GHZ;
- is_fat = is_fat_channel(priv->active_rxon.flags);
+ is_ht40 = is_ht40_channel(priv->active_rxon.flags);
- if (is_fat &&
+ if (is_ht40 &&
(priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
ctrl_chan_high = 1;
ret = iwl4965_fill_txpower_tbl(priv, band,
le16_to_cpu(priv->active_rxon.channel),
- is_fat, ctrl_chan_high, &cmd.tx_power);
+ is_ht40, ctrl_chan_high, &cmd.tx_power);
if (ret)
goto out;
{
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;
+ const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
+ const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
if ((rxon1->flags == rxon2->flags) &&
(rxon1->filter_flags == rxon2->filter_flags) &&
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");
+ IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
return 0;
}
return ret;
}
-
-int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
+static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
{
int rc;
u8 band = 0;
- u8 is_fat = 0;
+ bool is_ht40 = false;
u8 ctrl_chan_high = 0;
- struct iwl4965_channel_switch_cmd cmd = { 0 };
+ struct iwl4965_channel_switch_cmd cmd;
const struct iwl_channel_info *ch_info;
band = priv->band == IEEE80211_BAND_2GHZ;
ch_info = iwl_get_channel_info(priv, priv->band, channel);
- is_fat = is_fat_channel(priv->staging_rxon.flags);
+ is_ht40 = is_ht40_channel(priv->staging_rxon.flags);
- if (is_fat &&
+ if (is_ht40 &&
(priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
ctrl_chan_high = 1;
cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
if (ch_info)
cmd.expect_beacon = is_channel_radar(ch_info);
- else
- cmd.expect_beacon = 1;
-
- rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_fat,
- ctrl_chan_high, &cmd.tx_power);
- if (rc) {
- IWL_DEBUG_11H("error:%d fill txpower_tbl\n", rc);
- return rc;
- }
-
- rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
- return rc;
-}
-
-#define RTS_HCCA_RETRY_LIMIT 3
-#define RTS_DFAULT_RETRY_LIMIT 60
-
-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)
-{
- struct iwl4965_tx_cmd *tx = &cmd->cmd.tx;
- u8 rts_retry_limit = 0;
- u8 data_retry_limit = 0;
- 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);
-
- 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)
- rts_retry_limit = data_retry_limit;
- } else
- data_retry_limit = IWL_DEFAULT_TX_RETRY;
-
- if (priv->data_retry_limit != -1)
- data_retry_limit = priv->data_retry_limit;
-
-
- 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->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;
- }
- }
-
- 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 iwl4965_hw_get_rx_read(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 iwl4965_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,
- iwl4965_broadcast_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);
-}
-
-/*
- * 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_nic_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- /* Circular buffer (TFD queue in DRAM) physical base address */
- iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
- txq->q.dma_addr >> 8);
-
- /* Enable DMA channel, using same id as for TFD queue */
- iwl_write_direct32(
- priv, FH_TCSR_CHNL_TX_CONFIG_REG(txq_id),
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
-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 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);
- return -EINVAL;
- }
-
- index = num_tbs / 2;
- is_odd = num_tbs & 0x1;
-
- if (!is_odd) {
- tfd->pa[index].tb1_addr = cpu_to_le32(addr);
- IWL_SET_BITS(tfd->pa[index], tb1_addr_hi,
- 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,
- (u32) (addr & 0xffff));
- IWL_SET_BITS(tfd->pa[index], tb2_addr_hi20, addr >> 16);
- IWL_SET_BITS(tfd->pa[index], tb2_len, len);
+ else {
+ IWL_ERR(priv, "invalid channel switch from %u to %u\n",
+ priv->active_rxon.channel, channel);
+ return -EFAULT;
}
- IWL_SET_BITS(*tfd, num_tbs, num_tbs + 1);
-
- return 0;
-}
-
-static void iwl4965_hw_card_show_info(struct iwl_priv *priv)
-{
- u16 hw_version = iwl_eeprom_query16(priv, EEPROM_4965_BOARD_REVISION);
-
- IWL_DEBUG_INFO("4965ABGN HW Version %u.%u.%u\n",
- ((hw_version >> 8) & 0x0F),
- ((hw_version >> 8) >> 4), (hw_version & 0x00FF));
-
- IWL_DEBUG_INFO("4965ABGN PBA Number %.16s\n",
- &priv->eeprom[EEPROM_4965_BOARD_PBA]);
-}
-
-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));
-
- return 0;
-}
+ rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_ht40,
+ ctrl_chan_high, &cmd.tx_power);
+ if (rc) {
+ IWL_DEBUG_11H(priv, "error:%d fill txpower_tbl\n", rc);
+ return rc;
+ }
-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);
+ rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
+ return rc;
}
/**
* 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,
+ 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(struct iwl_priv *priv)
{
s32 temperature;
s32 vt;
u32 R4;
if (test_bit(STATUS_TEMPERATURE, &priv->status) &&
- (priv->statistics.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)) {
- IWL_DEBUG_TEMP("Running FAT temperature calibration\n");
+ (priv->statistics.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)) {
+ IWL_DEBUG_TEMP(priv, "Running HT40 temperature calibration\n");
R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]);
} else {
- IWL_DEBUG_TEMP("Running temperature calibration\n");
+ IWL_DEBUG_TEMP(priv, "Running temperature calibration\n");
R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]);
R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]);
R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]);
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(priv, "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");
+ IWL_ERR(priv, "Calibration conflict R1 == R3\n");
return -1;
}
* 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(priv, "Calibrated temperature: %dK, %dC\n",
+ temperature, KELVIN_TO_CELSIUS(temperature));
return temperature;
}
int temp_diff;
if (!test_bit(STATUS_STATISTICS, &priv->status)) {
- IWL_DEBUG_TEMP("Temperature not updated -- no statistics.\n");
- return 0;
- }
-
- temp_diff = priv->temperature - priv->last_temperature;
-
- /* get absolute value */
- if (temp_diff < 0) {
- IWL_DEBUG_POWER("Getting cooler, delta %d, \n", temp_diff);
- temp_diff = -temp_diff;
- } else if (temp_diff == 0)
- IWL_DEBUG_POWER("Same temp, \n");
- else
- IWL_DEBUG_POWER("Getting warmer, delta %d, \n", temp_diff);
-
- if (temp_diff < IWL_TEMPERATURE_THRESHOLD) {
- IWL_DEBUG_POWER("Thermal txpower calib not needed\n");
- return 0;
- }
-
- IWL_DEBUG_POWER("Thermal txpower calib needed\n");
-
- 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)
-{
- 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);
- if (temp < 0)
- return;
-
- if (priv->temperature != temp) {
- if (priv->temperature)
- IWL_DEBUG_TEMP("Temperature changed "
- "from %dC to %dC\n",
- KELVIN_TO_CELSIUS(priv->temperature),
- KELVIN_TO_CELSIUS(temp));
- else
- IWL_DEBUG_TEMP("Temperature "
- "initialized to %dC\n",
- KELVIN_TO_CELSIUS(temp));
- }
-
- priv->temperature = temp;
- set_bit(STATUS_TEMPERATURE, &priv->status);
-
- if (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->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
- 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;
-}
-
-/*
- * returns non-zero if packet should be dropped
- */
-static int iwl4965_set_decrypted_flag(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u32 decrypt_res,
- struct ieee80211_rx_status *stats)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
-
- if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
+ IWL_DEBUG_TEMP(priv, "Temperature not updated -- no statistics.\n");
return 0;
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return 0;
-
- 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;
-
- 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_WEP:
- 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;
-
- default:
- break;
- }
- return 0;
-}
-
-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 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);
- }
- 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 */
-
- /* 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 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(!(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 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_frequency_to_channel(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.ssi = iwl4965_calc_rssi(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.signal = iwl4965_calc_sig_qual(rx_status.ssi,
- rx_status.noise);
- } else {
- 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;
-
- /* 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 = iwl4965_is_network_packet(priv, header);
- if (network_packet) {
- 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);
- 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));
-}
-static void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-
-{
-#ifdef CONFIG_IWL4965_RUN_TIME_CALIB
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)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) {
- IWL_DEBUG_CALIB("missed bcn cnsq %d totl %d rcd %d expctd %d\n",
- le32_to_cpu(missed_beacon->consequtive_missed_beacons),
- le32_to_cpu(missed_beacon->total_missed_becons),
- le32_to_cpu(missed_beacon->num_recvd_beacons),
- le32_to_cpu(missed_beacon->num_expected_beacons));
- if (!test_bit(STATUS_SCANNING, &priv->status))
- iwl_init_sensitivity(priv);
}
-#endif /*CONFIG_IWL4965_RUN_TIME_CALIB*/
-}
-#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);
-}
+ temp_diff = priv->temperature - priv->last_temperature;
-/**
- * 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)
+ /* get absolute value */
+ if (temp_diff < 0) {
+ IWL_DEBUG_POWER(priv, "Getting cooler, delta %d, \n", temp_diff);
+ temp_diff = -temp_diff;
+ } else if (temp_diff == 0)
+ IWL_DEBUG_POWER(priv, "Same temp, \n");
+ else
+ IWL_DEBUG_POWER(priv, "Getting warmer, delta %d, \n", temp_diff);
-{
- 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_status *tx_status;
-
- if (unlikely(!agg->wait_for_ba)) {
- IWL_ERROR("Received BA when not expected\n");
- return -EINVAL;
+ if (temp_diff < IWL_TEMPERATURE_THRESHOLD) {
+ IWL_DEBUG_POWER(priv, "Thermal txpower calib not needed\n");
+ return 0;
}
- /* 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);
+ IWL_DEBUG_POWER(priv, "Thermal txpower calib needed\n");
- /* 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;
+ return 1;
+}
- /* don't use 64-bit values for now */
- bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
+static void iwl4965_temperature_calib(struct iwl_priv *priv)
+{
+ s32 temp;
- if (agg->frame_count > (64 - sh)) {
- IWL_DEBUG_TX_REPLY("more frames than bitmap size");
- return -1;
- }
+ temp = iwl4965_hw_get_temperature(priv);
+ if (temp < 0)
+ return;
- /* 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);
+ if (priv->temperature != temp) {
+ if (priv->temperature)
+ IWL_DEBUG_TEMP(priv, "Temperature changed "
+ "from %dC to %dC\n",
+ KELVIN_TO_CELSIUS(priv->temperature),
+ KELVIN_TO_CELSIUS(temp));
+ else
+ IWL_DEBUG_TEMP(priv, "Temperature "
+ "initialized to %dC\n",
+ KELVIN_TO_CELSIUS(temp));
}
- 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);
+ priv->temperature = temp;
+ iwl_tt_handler(priv);
+ set_bit(STATUS_TEMPERATURE, &priv->status);
- return 0;
+ 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);
}
/**
}
/**
- * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
+ * txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE
* 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);
+static int iwl4965_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
+ u16 ssn_idx, u8 tx_fifo)
+{
+ if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
+ (IWL49_FIRST_AMPDU_QUEUE + priv->cfg->num_of_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 +
+ priv->cfg->num_of_ampdu_queues - 1);
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));
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);
+ 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 iwl4965_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_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 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 iwl4965_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 = 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 */
-
- 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 = 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, 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,
u32 tbl_dw;
u16 scd_q2ratid;
- scd_q2ratid = ra_tid & IWL49_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
+ scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
tbl_dw_addr = priv->scd_base_addr +
IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_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,
+ * 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;
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 + priv->cfg->num_of_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 +
+ priv->cfg->num_of_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) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
/* Stop this Tx queue before configuring it */
iwl4965_tx_queue_stop_scheduler(priv, 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_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-#endif /* CONFIG_IWL4965_HT */
-/**
- * iwl4965_add_station - Initialize a station's hardware rate table
- *
- * The uCode's station table contains a table of fallback rates
- * for automatic fallback during transmission.
- *
- * 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)
+static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len)
{
- int i, r;
- struct iwl_link_quality_cmd link_cmd = {
- .reserved1 = 0,
- };
- u16 rate_flags;
-
- /* 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->band == IEEE80211_BAND_5GHZ)
- r = IWL_RATE_6M_INDEX;
- else
- r = IWL_RATE_1M_INDEX;
-
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
- rate_flags = 0;
- 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; /*FIXME:RS*/
-
- link_cmd.rs_table[i].rate_n_flags =
- iwl4965_hw_set_rate_n_flags(iwl4965_rates[r].plcp, rate_flags);
- r = iwl4965_get_prev_ieee_rate(r);
+ switch (cmd_id) {
+ case REPLY_RXON:
+ return (u16) sizeof(struct iwl4965_rxon_cmd);
+ default:
+ return len;
}
+}
- link_cmd.general_params.single_stream_ant_msk = 2;
- link_cmd.general_params.dual_stream_ant_msk = 3;
- link_cmd.agg_params.agg_dis_start_th = 3;
- 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 : priv->hw_params.bcast_sta_id;
+static u16 iwl4965_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
+{
+ struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data;
+ addsta->mode = cmd->mode;
+ memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
+ memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
+ addsta->station_flags = cmd->station_flags;
+ addsta->station_flags_msk = cmd->station_flags_msk;
+ addsta->tid_disable_tx = cmd->tid_disable_tx;
+ addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
+ addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
+ addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
+ addsta->reserved1 = cpu_to_le16(0);
+ addsta->reserved2 = cpu_to_le32(0);
- iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
- sizeof(link_cmd), &link_cmd, NULL);
+ return (u16)sizeof(struct iwl4965_addsta_cmd);
}
-#ifdef CONFIG_IWL4965_HT
+static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
+{
+ return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
+}
-static u8 iwl4965_is_channel_extension(struct iwl_priv *priv,
- enum ieee80211_band band,
- u16 channel, u8 extension_chan_offset)
+/**
+ * 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 *tx_resp,
+ int txq_id, u16 start_idx)
{
- const struct iwl_channel_info *ch_info;
+ u16 status;
+ struct agg_tx_status *frame_status = tx_resp->u.agg_status;
+ struct ieee80211_tx_info *info = NULL;
+ struct ieee80211_hdr *hdr = NULL;
+ 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(priv, "got tx response w/o block-ack\n");
+
+ agg->frame_count = tx_resp->frame_count;
+ agg->start_idx = start_idx;
+ agg->rate_n_flags = rate_n_flags;
+ agg->bitmap = 0;
+
+ /* 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);
+ idx = start_idx;
+
+ /* FIXME: code repetition */
+ IWL_DEBUG_TX_REPLY(priv, "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.rates[0].count = tx_resp->failure_frame + 1;
+ info->flags &= ~IEEE80211_TX_CTL_AMPDU;
+ info->flags |= iwl_is_tx_success(status) ?
+ IEEE80211_TX_STAT_ACK : 0;
+ iwl_hwrate_to_tx_control(priv, rate_n_flags, info);
+ /* FIXME: code repetition end */
+
+ IWL_DEBUG_TX_REPLY(priv, "1 Frame 0x%x failure :%d\n",
+ status & 0xff, tx_resp->failure_frame);
+ IWL_DEBUG_TX_REPLY(priv, "Rate Info rate_n_flags=%x\n", rate_n_flags);
+
+ agg->wait_for_ba = 0;
+ } else {
+ /* Two or more frames were attempted; expect block-ack */
+ u64 bitmap = 0;
+ int start = agg->start_idx;
+
+ /* Construct bit-map of pending frames within Tx window */
+ for (i = 0; i < agg->frame_count; i++) {
+ u16 sc;
+ status = le16_to_cpu(frame_status[i].status);
+ seq = le16_to_cpu(frame_status[i].sequence);
+ idx = SEQ_TO_INDEX(seq);
+ txq_id = SEQ_TO_QUEUE(seq);
+
+ if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
+ AGG_TX_STATE_ABORT_MSK))
+ continue;
+
+ IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, txq_id=%d idx=%d\n",
+ agg->frame_count, txq_id, idx);
+
+ hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
+ if (!hdr) {
+ IWL_ERR(priv,
+ "BUG_ON idx doesn't point to valid skb"
+ " idx=%d, txq_id=%d\n", idx, txq_id);
+ return -1;
+ }
- ch_info = iwl_get_channel_info(priv, band, channel);
- if (!is_channel_valid(ch_info))
- return 0;
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ if (idx != (SEQ_TO_SN(sc) & 0xff)) {
+ IWL_ERR(priv,
+ "BUG_ON idx doesn't match seq control"
+ " idx=%d, seq_idx=%d, seq=%d\n",
+ idx, SEQ_TO_SN(sc), hdr->seq_ctrl);
+ return -1;
+ }
- if (extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_NONE)
- return 0;
+ IWL_DEBUG_TX_REPLY(priv, "AGG Frame i=%d idx %d seq=%d\n",
+ i, idx, SEQ_TO_SN(sc));
+
+ sh = idx - start;
+ if (sh > 64) {
+ sh = (start - idx) + 0xff;
+ bitmap = bitmap << sh;
+ sh = 0;
+ start = idx;
+ } else if (sh < -64)
+ sh = 0xff - (start - idx);
+ else if (sh < 0) {
+ sh = start - idx;
+ start = idx;
+ bitmap = bitmap << sh;
+ sh = 0;
+ }
+ bitmap |= 1ULL << sh;
+ IWL_DEBUG_TX_REPLY(priv, "start=%d bitmap=0x%llx\n",
+ start, (unsigned long long)bitmap);
+ }
- if ((ch_info->fat_extension_channel == extension_chan_offset) ||
- (ch_info->fat_extension_channel == HT_IE_EXT_CHANNEL_MAX))
- return 1;
+ agg->bitmap = bitmap;
+ agg->start_idx = start;
+ IWL_DEBUG_TX_REPLY(priv, "Frames %d start_idx=%d bitmap=0x%llx\n",
+ agg->frame_count, agg->start_idx,
+ (unsigned long long)agg->bitmap);
+ if (bitmap)
+ agg->wait_for_ba = 1;
+ }
return 0;
}
-static u8 iwl4965_is_fat_tx_allowed(struct iwl_priv *priv,
- struct ieee80211_ht_info *sta_ht_inf)
+/**
+ * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
+ */
+static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
{
- struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
-
- 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 (sta_ht_inf) {
- if ((!sta_ht_inf->ht_supported) ||
- (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
- return 0;
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ 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->u.status);
+ int tid = MAX_TID_COUNT;
+ int sta_id;
+ int freed;
+ u8 *qc = NULL;
+
+ if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
+ IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
+ "is out of range [0-%d] %d %d\n", txq_id,
+ index, txq->q.n_bd, txq->q.write_ptr,
+ txq->q.read_ptr);
+ return;
}
- 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 iwl_ht_info *ht_info)
-{
- struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon;
- u32 val;
-
- if (!ht_info->is_ht)
- return;
+ info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
+ memset(&info->status, 0, sizeof(info->status));
- /* 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 |
- RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
-
- if (le16_to_cpu(rxon->channel) != ht_info->control_channel) {
- IWL_ERROR("control diff than current %d %d\n",
- le16_to_cpu(rxon->channel),
- ht_info->control_channel);
- WARN_ON(1);
- return;
+ hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & 0xf;
}
- /* 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);
- break;
- case IWL_EXT_CHANNEL_OFFSET_BELOW:
- rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
- break;
- case IWL_EXT_CHANNEL_OFFSET_NONE:
- default:
- rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
- break;
+ sta_id = iwl_get_ra_sta_id(priv, hdr);
+ if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
+ IWL_ERR(priv, "Station not known\n");
+ return;
}
- val = ht_info->ht_protection;
+ if (txq->sched_retry) {
+ const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
+ struct iwl_ht_agg *agg = NULL;
- rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
+ WARN_ON(!qc);
- iwl_set_rxon_chain(priv);
+ agg = &priv->stations[sta_id].tid[tid].agg;
- IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X "
- "rxon flags 0x%X operation mode :0x%X "
- "extension channel offset 0x%x "
- "control chan %d\n",
- ht_info->supp_mcs_set[0],
- ht_info->supp_mcs_set[1],
- ht_info->supp_mcs_set[2],
- le32_to_cpu(rxon->flags), ht_info->ht_protection,
- ht_info->extension_chan_offset,
- ht_info->control_channel);
- return;
-}
+ iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
-void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
- struct ieee80211_ht_info *sta_ht_inf)
-{
- __le32 sta_flags;
- u8 mimo_ps_mode;
+ /* 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 (!sta_ht_inf || !sta_ht_inf->ht_supported)
- goto done;
+ if (txq->q.read_ptr != (scd_ssn & 0xff)) {
+ index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
+ IWL_DEBUG_TX_REPLY(priv, "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;
- mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
+ 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)
+ iwl_wake_queue(priv, txq_id);
+ else
+ iwl_wake_queue(priv, txq->swq_id);
+ }
+ }
+ } else {
+ 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);
- sta_flags = priv->stations[index].sta.station_flags;
+ IWL_DEBUG_TX_REPLY(priv, "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);
- sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
+ 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;
- 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;
- break;
- case WLAN_HT_CAP_MIMO_PS_DISABLED:
- break;
- default:
- IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode);
- break;
+ if (priv->mac80211_registered &&
+ (iwl_queue_space(&txq->q) > txq->q.low_mark))
+ iwl_wake_queue(priv, txq_id);
}
- sta_flags |= cpu_to_le32(
- (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
+ if (qc && likely(sta_id != IWL_INVALID_STATION))
+ iwl_txq_check_empty(priv, sta_id, tid, txq_id);
- sta_flags |= cpu_to_le32(
- (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
-
- if (iwl4965_is_fat_tx_allowed(priv, sta_ht_inf))
- sta_flags |= STA_FLG_FAT_EN_MSK;
- else
- sta_flags &= ~STA_FLG_FAT_EN_MSK;
-
- priv->stations[index].sta.station_flags = sta_flags;
- done:
- return;
+ if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
+ IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
}
-static int iwl4965_rx_agg_start(struct iwl_priv *priv,
- const u8 *addr, int tid, u16 ssn)
+static int iwl4965_calc_rssi(struct iwl_priv *priv,
+ struct iwl_rx_phy_res *rx_resp)
{
- 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);
-}
+ /* 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;
-static int iwl4965_rx_agg_stop(struct iwl_priv *priv,
- const u8 *addr, int tid)
-{
- unsigned long flags;
- int sta_id;
+ 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;
- sta_id = iwl_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
+ /* 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);
- 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);
+ IWL_DEBUG_STATS(priv, "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);
- return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC);
+ /* dBm = max_rssi dB - agc dB - constant.
+ * Higher AGC (higher radio gain) means lower signal. */
+ return max_rssi - agc - IWL49_RSSI_OFFSET;
}
-/*
- * 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)
+/* Set up 4965-specific Rx frame reply handlers */
+static void iwl4965_rx_handler_setup(struct iwl_priv *priv)
{
- 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;
+ /* Legacy Rx frames */
+ priv->rx_handlers[REPLY_RX] = iwl_rx_reply_rx;
+ /* Tx response */
+ priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
}
-static int iwl4965_tx_agg_stop(struct ieee80211_hw *hw, const u8 *ra, u16 tid)
+static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
{
- 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;
+ INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work);
}
-int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
- enum ieee80211_ampdu_mlme_action action,
- const u8 *addr, u16 tid, u16 *ssn)
+static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
{
- 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;
+ cancel_work_sync(&priv->txpower_work);
}
-#endif /* CONFIG_IWL4965_HT */
-
-static u16 iwl4965_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
-{
- struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data;
- addsta->mode = cmd->mode;
- memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
- memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
- addsta->station_flags = cmd->station_flags;
- addsta->station_flags_msk = cmd->station_flags_msk;
- addsta->tid_disable_tx = cmd->tid_disable_tx;
- addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
- addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
- addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
- addsta->reserved1 = __constant_cpu_to_le16(0);
- addsta->reserved2 = __constant_cpu_to_le32(0);
-
- return (u16)sizeof(struct iwl4965_addsta_cmd);
+#define IWL4965_UCODE_GET(item) \
+static u32 iwl4965_ucode_get_##item(const struct iwl_ucode_header *ucode,\
+ u32 api_ver) \
+{ \
+ return le32_to_cpu(ucode->u.v1.item); \
}
-/* 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[MISSED_BEACONS_NOTIFICATION] =
- iwl4965_rx_missed_beacon_notif;
-
-#ifdef CONFIG_IWL4965_HT
- priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
-#endif /* CONFIG_IWL4965_HT */
+static u32 iwl4965_ucode_get_header_size(u32 api_ver)
+{
+ return UCODE_HEADER_SIZE(1);
}
-
-void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv)
+static u32 iwl4965_ucode_get_build(const struct iwl_ucode_header *ucode,
+ u32 api_ver)
{
- 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;
+ return 0;
}
-
-void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv)
+static u8 *iwl4965_ucode_get_data(const struct iwl_ucode_header *ucode,
+ u32 api_ver)
{
- del_timer_sync(&priv->statistics_periodic);
-
- cancel_delayed_work(&priv->init_alive_start);
+ return (u8 *) ucode->u.v1.data;
}
+IWL4965_UCODE_GET(inst_size);
+IWL4965_UCODE_GET(data_size);
+IWL4965_UCODE_GET(init_size);
+IWL4965_UCODE_GET(init_data_size);
+IWL4965_UCODE_GET(boot_size);
static struct iwl_hcmd_ops iwl4965_hcmd = {
.rxon_assoc = iwl4965_send_rxon_assoc,
+ .commit_rxon = iwl_commit_rxon,
+ .set_rxon_chain = iwl_set_rxon_chain,
};
+static struct iwl_ucode_ops iwl4965_ucode = {
+ .get_header_size = iwl4965_ucode_get_header_size,
+ .get_build = iwl4965_ucode_get_build,
+ .get_inst_size = iwl4965_ucode_get_inst_size,
+ .get_data_size = iwl4965_ucode_get_data_size,
+ .get_init_size = iwl4965_ucode_get_init_size,
+ .get_init_data_size = iwl4965_ucode_get_init_data_size,
+ .get_boot_size = iwl4965_ucode_get_boot_size,
+ .get_data = iwl4965_ucode_get_data,
+};
static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
- .enqueue_hcmd = iwl4965_enqueue_hcmd,
+ .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 = iwlcore_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,
.txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
- .hw_nic_init = iwl4965_hw_nic_init,
+ .txq_set_sched = iwl4965_txq_set_sched,
+ .txq_agg_enable = iwl4965_txq_agg_enable,
+ .txq_agg_disable = iwl4965_txq_agg_disable,
+ .txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
+ .txq_free_tfd = iwl_hw_txq_free_tfd,
+ .txq_init = iwl_hw_tx_queue_init,
.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,
.load_ucode = iwl4965_load_bsm,
+ .dump_nic_event_log = iwl_dump_nic_event_log,
+ .dump_nic_error_log = iwl_dump_nic_error_log,
+ .set_channel_switch = iwl4965_hw_channel_switch,
.apm_ops = {
- .init = iwl4965_apm_init,
+ .init = iwl_apm_init,
+ .stop = iwl_apm_stop,
.config = iwl4965_nic_config,
- .set_pwr_src = iwl4965_set_pwr_src,
+ .set_pwr_src = iwl_set_pwr_src,
},
.eeprom_ops = {
.regulatory_bands = {
EEPROM_REGULATORY_BAND_3_CHANNELS,
EEPROM_REGULATORY_BAND_4_CHANNELS,
EEPROM_REGULATORY_BAND_5_CHANNELS,
- EEPROM_4965_REGULATORY_BAND_24_FAT_CHANNELS,
- EEPROM_4965_REGULATORY_BAND_52_FAT_CHANNELS
+ EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS,
+ EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS
},
.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,
+ .post_associate = iwl_post_associate,
+ .config_ap = iwl_config_ap,
+ .isr = iwl_isr_legacy,
+ .temp_ops = {
+ .temperature = iwl4965_temperature_calib,
+ .set_ct_kill = iwl4965_set_ct_threshold,
+ },
};
static struct iwl_ops iwl4965_ops = {
+ .ucode = &iwl4965_ucode,
.lib = &iwl4965_lib,
.hcmd = &iwl4965_hcmd,
.utils = &iwl4965_hcmd_utils,
+ .led = &iwlagn_led_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,
+ .num_of_queues = IWL49_NUM_QUEUES,
+ .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES,
.mod_params = &iwl4965_mod_params,
+ .valid_tx_ant = ANT_AB,
+ .valid_rx_ant = ANT_AB,
+ .pll_cfg_val = 0,
+ .set_l0s = true,
+ .use_bsm = true,
+ .use_isr_legacy = true,
+ .ht_greenfield_support = false,
+ .broken_powersave = true,
+ .led_compensation = 61,
+ .chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
};
-module_param_named(antenna, iwl4965_mod_params.antenna, int, 0444);
+/* Module firmware */
+MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX));
+
+module_param_named(antenna, iwl4965_mod_params.antenna, int, S_IRUGO);
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(swcrypto, iwl4965_mod_params.sw_crypto, int, S_IRUGO);
+MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
module_param_named(
- disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444);
+ disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, S_IRUGO);
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_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, S_IRUGO);
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);
+/* 11n */
+module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, S_IRUGO);
+MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
+module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K,
+ int, S_IRUGO);
MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
+module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, S_IRUGO);
+MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff