diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 176 |
1 files changed, 50 insertions, 126 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 9afecb81371..9838de5f436 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -26,7 +26,6 @@ #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> @@ -341,39 +340,6 @@ err: return -EINVAL; } -int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - ret = iwl_grab_nic_access(priv); - if (ret) { - spin_unlock_irqrestore(&priv->lock, flags); - return ret; - } - - if (src == IWL_PWR_SRC_VAUX) { - u32 val; - ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE, - &val); - - if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) { - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VAUX, - ~APMG_PS_CTRL_MSK_PWR_SRC); - } - } else { - iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, - APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, - ~APMG_PS_CTRL_MSK_PWR_SRC); - } - - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - return ret; -} /* * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask @@ -433,7 +399,7 @@ static void iwl4965_nic_config(struct iwl_priv *priv) unsigned long flags; u32 val; u16 radio_cfg; - u8 val_link; + u16 link; spin_lock_irqsave(&priv->lock, flags); @@ -444,10 +410,10 @@ static void iwl4965_nic_config(struct iwl_priv *priv) val & ~(1 << 11)); } - pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link); + pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &link); /* L1 is enabled by BIOS */ - if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN) + if ((link & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN) /* diable L0S disabled L1A enabled */ iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); else @@ -508,8 +474,8 @@ static void iwl4965_apm_stop(struct iwl_priv *priv) iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); udelay(10); - - iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + /* clear "init complete" move adapter D0A* --> D0U state */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); spin_unlock_irqrestore(&priv->lock, flags); } @@ -875,18 +841,6 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv) 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; -} - static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res) { s32 sign = 1; @@ -1012,7 +966,7 @@ static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel, s = iwl4965_get_sub_band(priv, channel); if (s >= EEPROM_TX_POWER_BANDS) { - IWL_ERROR("Tx Power can not find channel %d ", channel); + IWL_ERROR("Tx Power can not find channel %d\n", channel); return -1; } @@ -1560,11 +1514,11 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel, 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; } @@ -1653,8 +1607,8 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv) return ret; } - -int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) +#ifdef IEEE80211_CONF_CHANNEL_SWITCH +static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) { int rc; u8 band = 0; @@ -1694,6 +1648,7 @@ int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) rc = iwl_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd); return rc; } +#endif static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv) { @@ -1701,38 +1656,6 @@ static int iwl4965_shared_mem_rx_idx(struct iwl_priv *priv) return le32_to_cpu(s->rb_closed) & 0xFFF; } -unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl_frame *frame, u8 rate) -{ - struct iwl4965_tx_beacon_cmd *tx_beacon_cmd; - unsigned int frame_size; - - tx_beacon_cmd = &frame->u.beacon; - memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); - - tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; - tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - - frame_size = iwl4965_fill_beacon_frame(priv, - tx_beacon_cmd->frame, - iwl_bcast_addr, - sizeof(frame->u) - sizeof(*tx_beacon_cmd)); - - BUG_ON(frame_size > MAX_MPDU_SIZE); - tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); - - if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) - tx_beacon_cmd->tx.rate_n_flags = - iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); - else - tx_beacon_cmd->tx.rate_n_flags = - iwl_hw_set_rate_n_flags(rate, 0); - - tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | - TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK); - return (sizeof(*tx_beacon_cmd) + frame_size); -} - static int iwl4965_alloc_shared_mem(struct iwl_priv *priv) { priv->shared_virt = pci_alloc_consistent(priv->pci_dev, @@ -2079,39 +2002,6 @@ static int iwl4965_txq_agg_enable(struct iwl_priv *priv, int txq_id, return 0; } -int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, - enum ieee80211_ampdu_mlme_action action, - const u8 *addr, u16 tid, u16 *ssn) -{ - struct iwl_priv *priv = hw->priv; - DECLARE_MAC_BUF(mac); - - IWL_DEBUG_HT("A-MPDU action on addr %s tid %d\n", - print_mac(mac, addr), tid); - - if (!(priv->cfg->sku & IWL_SKU_N)) - return -EACCES; - - switch (action) { - case IEEE80211_AMPDU_RX_START: - IWL_DEBUG_HT("start Rx\n"); - return iwl_rx_agg_start(priv, addr, tid, *ssn); - case IEEE80211_AMPDU_RX_STOP: - IWL_DEBUG_HT("stop Rx\n"); - return iwl_rx_agg_stop(priv, addr, tid); - case IEEE80211_AMPDU_TX_START: - IWL_DEBUG_HT("start Tx\n"); - return iwl_tx_agg_start(priv, addr, tid, ssn); - case IEEE80211_AMPDU_TX_STOP: - IWL_DEBUG_HT("stop Tx\n"); - return iwl_tx_agg_stop(priv, addr, tid); - default: - IWL_DEBUG_HT("unknown\n"); - return -EINVAL; - break; - } - return 0; -} static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len) { @@ -2240,9 +2130,9 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, bitmap = bitmap << sh; sh = 0; } - bitmap |= (1 << sh); - IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n", - start, (u32)(bitmap & 0xFFFFFFFF)); + bitmap |= 1ULL << sh; + IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%llx\n", + start, (unsigned long long)bitmap); } agg->bitmap = bitmap; @@ -2368,6 +2258,40 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); } +static int iwl4965_calc_rssi(struct iwl_priv *priv, + struct iwl_rx_phy_res *rx_resp) +{ + /* data from PHY/DSP regarding signal strength, etc., + * contents are always there, not configurable by host. */ + struct iwl4965_rx_non_cfg_phy *ncphy = + (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf; + u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL49_AGC_DB_MASK) + >> IWL49_AGC_DB_POS; + + u32 valid_antennae = + (le16_to_cpu(rx_resp->phy_flags) & IWL49_RX_PHY_FLAGS_ANTENNAE_MASK) + >> IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET; + u8 max_rssi = 0; + u32 i; + + /* Find max rssi among 3 possible receivers. + * These values are measured by the digital signal processor (DSP). + * They should stay fairly constant even as the signal strength varies, + * if the radio's automatic gain control (AGC) is working right. + * AGC value (see below) will provide the "interesting" info. */ + for (i = 0; i < 3; i++) + if (valid_antennae & (1 << i)) + max_rssi = max(ncphy->rssi_info[i << 1], max_rssi); + + IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n", + ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4], + max_rssi, agc); + + /* dBm = max_rssi dB - agc dB - constant. + * Higher AGC (higher radio gain) means lower signal. */ + return max_rssi - agc - IWL_RSSI_OFFSET; +} + /* Set up 4965-specific Rx frame reply handlers */ static void iwl4965_rx_handler_setup(struct iwl_priv *priv) @@ -2399,6 +2323,7 @@ static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = { .chain_noise_reset = iwl4965_chain_noise_reset, .gain_computation = iwl4965_gain_computation, .rts_tx_cmd_flag = iwl4965_rts_tx_cmd_flag, + .calc_rssi = iwl4965_calc_rssi, }; static struct iwl_lib_ops iwl4965_lib = { @@ -2440,7 +2365,6 @@ static struct iwl_lib_ops iwl4965_lib = { .check_version = iwl4965_eeprom_check_version, .query_addr = iwlcore_eeprom_query_addr, }, - .set_power = iwl4965_set_power, .send_tx_power = iwl4965_send_tx_power, .update_chain_flags = iwl4965_update_chain_flags, .temperature = iwl4965_temperature_calib, @@ -2469,7 +2393,7 @@ 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_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); module_param_named(debug, iwl4965_mod_params.debug, int, 0444); MODULE_PARM_DESC(debug, "debug output mask"); module_param_named( |