/****************************************************************************** * * Copyright(c) 2007-2008 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * * Contact Information: * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "iwl-eeprom.h" #include "iwl-dev.h" #include "iwl-core.h" #include "iwl-io.h" #include "iwl-helpers.h" #include "iwl-5000-hw.h" #define IWL5000_UCODE_API "-1" static int iwl5000_apm_init(struct iwl_priv *priv) { int ret = 0; iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL); /* 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"); return ret; } ret = iwl_grab_nic_access(priv); if (ret) return ret; /* enable DMA */ iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_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); return ret; } static void iwl5000_nic_config(struct iwl_priv *priv) { unsigned long flags; u16 radio_cfg; u8 val_link; spin_lock_irqsave(&priv->lock, flags); 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_5000_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); spin_unlock_irqrestore(&priv->lock, flags); } /* * EEPROM */ static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address) { u16 offset = 0; if ((address & INDIRECT_ADDRESS) == 0) return address; switch (address & INDIRECT_TYPE_MSK) { case INDIRECT_HOST: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST); break; case INDIRECT_GENERAL: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL); break; case INDIRECT_REGULATORY: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY); break; case INDIRECT_CALIBRATION: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION); break; case INDIRECT_PROCESS_ADJST: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST); break; case INDIRECT_OTHERS: offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS); break; default: IWL_ERROR("illegal indirect type: 0x%X\n", address & INDIRECT_TYPE_MSK); break; } /* translate the offset from words to byte */ return (address & ADDRESS_MSK) + (offset << 1); } static int iwl5000_eeprom_check_version(struct iwl_priv *priv) { u16 eeprom_ver; struct iwl_eeprom_calib_hdr { u8 version; u8 pa_type; u16 voltage; } *hdr; eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv, EEPROM_5000_CALIB_ALL); if (eeprom_ver < EEPROM_5000_EEPROM_VERSION || hdr->version < EEPROM_5000_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_5000_EEPROM_VERSION, hdr->version, EEPROM_5000_TX_POWER_VERSION); return -EINVAL; } #ifdef CONFIG_IWL5000_RUN_TIME_CALIB static void iwl5000_gain_computation(struct iwl_priv *priv, u32 average_noise[NUM_RX_CHAINS], u16 min_average_noise_antenna_i, u32 min_average_noise) { int i; s32 delta_g; struct iwl_chain_noise_data *data = &priv->chain_noise_data; /* Find Gain Code for the antennas B and C */ for (i = 1; i < NUM_RX_CHAINS; i++) { if ((data->disconn_array[i])) { data->delta_gain_code[i] = 0; continue; } delta_g = (1000 * ((s32)average_noise[0] - (s32)average_noise[i])) / 1500; /* bound gain by 2 bits value max, 3rd bit is sign */ data->delta_gain_code[i] = min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE); if (delta_g < 0) /* set negative sign */ data->delta_gain_code[i] |= (1 << 2); } IWL_DEBUG_CALIB("Delta gains: ANT_B = %d ANT_C = %d\n", data->delta_gain_code[1], data->delta_gain_code[2]); if (!data->radio_write) { struct iwl5000_calibration_chain_noise_gain_cmd cmd; memset(&cmd, 0, sizeof(cmd)); cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD; cmd.delta_gain_1 = data->delta_gain_code[1]; cmd.delta_gain_2 = data->delta_gain_code[2]; iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD, sizeof(cmd), &cmd, NULL); data->radio_write = 1; 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 iwl5000_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 iwl5000_calibration_chain_noise_reset_cmd cmd; memset(&cmd, 0, sizeof(cmd)); cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD; 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 struct iwl_sensitivity_ranges iwl5000_sensitivity = { .min_nrg_cck = 95, .max_nrg_cck = 0, .auto_corr_min_ofdm = 90, .auto_corr_min_ofdm_mrc = 170, .auto_corr_min_ofdm_x1 = 120, .auto_corr_min_ofdm_mrc_x1 = 240, .auto_corr_max_ofdm = 120, .auto_corr_max_ofdm_mrc = 210, .auto_corr_max_ofdm_x1 = 155, .auto_corr_max_ofdm_mrc_x1 = 290, .auto_corr_min_cck = 125, .auto_corr_max_cck = 200, .auto_corr_min_cck_mrc = 170, .auto_corr_max_cck_mrc = 400, .nrg_th_cck = 95, .nrg_th_ofdm = 95, }; #endif /* CONFIG_IWL5000_RUN_TIME_CALIB */ static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) { u32 address = eeprom_indirect_address(priv, offset); BUG_ON(address >= priv->cfg->eeprom_size); return &priv->eeprom[address]; } static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) { if ((priv->cfg->mod_params->num_of_queues > IWL50_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, IWL50_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.max_rxq_size = RX_QUEUE_SIZE; priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; if (priv->cfg->mod_params->amsdu_size_8K) priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; else priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; priv->hw_params.max_stations = IWL5000_STATION_COUNT; priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID; priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE; priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE; priv->hw_params.max_bsm_size = BSM_SRAM_SIZE; priv->hw_params.fat_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); #ifdef CONFIG_IWL5000_RUN_TIME_CALIB priv->hw_params.sens = &iwl5000_sensitivity; #endif switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { case CSR_HW_REV_TYPE_5100: case CSR_HW_REV_TYPE_5150: priv->hw_params.tx_chains_num = 1; priv->hw_params.rx_chains_num = 2; /* FIXME: move to ANT_A, ANT_B, ANT_C enum */ priv->hw_params.valid_tx_ant = ANT_A; priv->hw_params.valid_rx_ant = ANT_AB; break; case CSR_HW_REV_TYPE_5300: case CSR_HW_REV_TYPE_5350: priv->hw_params.tx_chains_num = 3; priv->hw_params.rx_chains_num = 3; priv->hw_params.valid_tx_ant = ANT_ABC; priv->hw_params.valid_rx_ant = ANT_ABC; break; } switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { case CSR_HW_REV_TYPE_5100: case CSR_HW_REV_TYPE_5300: /* 5X00 wants in Celsius */ priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD; break; case CSR_HW_REV_TYPE_5150: case CSR_HW_REV_TYPE_5350: /* 5X50 wants in Kelvin */ priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD); break; } return 0; } static int iwl5000_alloc_shared_mem(struct iwl_priv *priv) { priv->shared_virt = pci_alloc_consistent(priv->pci_dev, sizeof(struct iwl5000_shared), &priv->shared_phys); if (!priv->shared_virt) return -ENOMEM; memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared)); priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed); return 0; } static void iwl5000_free_shared_mem(struct iwl_priv *priv) { if (priv->shared_virt) pci_free_consistent(priv->pci_dev, sizeof(struct iwl5000_shared), priv->shared_virt, priv->shared_phys); } static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv) { struct iwl5000_shared *s = priv->shared_virt; return le32_to_cpu(s->rb_closed) & 0xFFF; } /** * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array */ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, struct iwl_tx_queue *txq, u16 byte_cnt) { struct iwl5000_shared *shared_data = priv->shared_virt; int txq_id = txq->q.id; u8 sec_ctl = 0; u8 sta = 0; int len; len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; if (txq_id != IWL_CMD_QUEUE_NUM) { sta = txq->cmd[txq->q.write_ptr].cmd.tx.sta_id; sec_ctl = txq->cmd[txq->q.write_ptr].cmd.tx.sec_ctl; switch (sec_ctl & TX_CMD_SEC_MSK) { case TX_CMD_SEC_CCM: len += CCMP_MIC_LEN; break; case TX_CMD_SEC_TKIP: len += TKIP_ICV_LEN; break; case TX_CMD_SEC_WEP: len += WEP_IV_LEN + WEP_ICV_LEN; break; } } IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. tfd_offset[txq->q.write_ptr], byte_cnt, len); IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. tfd_offset[txq->q.write_ptr], sta_id, sta); if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], byte_cnt, len); IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], sta_id, sta); } } static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) { u16 size = (u16)sizeof(struct iwl_addsta_cmd); memcpy(data, cmd, size); return size; } static int iwl5000_disable_tx_fifo(struct iwl_priv *priv) { unsigned long flags; int ret; spin_lock_irqsave(&priv->lock, flags); ret = iwl_grab_nic_access(priv); if (unlikely(ret)) { IWL_ERROR("Tx fifo reset failed"); spin_unlock_irqrestore(&priv->lock, flags); return ret; } iwl_write_prph(priv, IWL50_SCD_TXFACT, 0); iwl_release_nic_access(priv); spin_unlock_irqrestore(&priv->lock, flags); return 0; } /* Currently 5000 is the supperset of everything */ static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len) { return len; } static struct iwl_hcmd_ops iwl5000_hcmd = { }; static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = { .get_hcmd_size = iwl5000_get_hcmd_size, .build_addsta_hcmd = iwl5000_build_addsta_hcmd, #ifdef CONFIG_IWL5000_RUN_TIME_CALIB .gain_computation = iwl5000_gain_computation, .chain_noise_reset = iwl5000_chain_noise_reset, #endif }; static struct iwl_lib_ops iwl5000_lib = { .set_hw_params = iwl5000_hw_set_hw_params, .alloc_shared_mem = iwl5000_alloc_shared_mem, .free_shared_mem = iwl5000_free_shared_mem, .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx, .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, .disable_tx_fifo = iwl5000_disable_tx_fifo, .apm_ops = { .init = iwl5000_apm_init, .config = iwl5000_nic_config, .set_pwr_src = iwl4965_set_pwr_src, }, .eeprom_ops = { .regulatory_bands = { EEPROM_5000_REG_BAND_1_CHANNELS, EEPROM_5000_REG_BAND_2_CHANNELS, EEPROM_5000_REG_BAND_3_CHANNELS, EEPROM_5000_REG_BAND_4_CHANNELS, EEPROM_5000_REG_BAND_5_CHANNELS, EEPROM_5000_REG_BAND_24_FAT_CHANNELS, EEPROM_5000_REG_BAND_52_FAT_CHANNELS }, .verify_signature = iwlcore_eeprom_verify_signature, .acquire_semaphore = iwlcore_eeprom_acquire_semaphore, .release_semaphore = iwlcore_eeprom_release_semaphore, .check_version = iwl5000_eeprom_check_version, .query_addr = iwl5000_eeprom_query_addr, }, }; static struct iwl_ops iwl5000_ops = { .lib = &iwl5000_lib, .hcmd = &iwl5000_hcmd, .utils = &iwl5000_hcmd_utils, }; static struct iwl_mod_params iwl50_mod_params = { .num_of_queues = IWL50_NUM_QUEUES, .enable_qos = 1, .amsdu_size_8K = 1, .restart_fw = 1, /* the rest are 0 by default */ }; struct iwl_cfg iwl5300_agn_cfg = { .name = "5300AGN", .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, .ops = &iwl5000_ops, .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, .mod_params = &iwl50_mod_params, }; struct iwl_cfg iwl5100_agn_cfg = { .name = "5100AGN", .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, .ops = &iwl5000_ops, .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, .mod_params = &iwl50_mod_params, }; struct iwl_cfg iwl5350_agn_cfg = { .name = "5350AGN", .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, .ops = &iwl5000_ops, .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, .mod_params = &iwl50_mod_params, }; module_param_named(disable50, iwl50_mod_params.disable, int, 0444); MODULE_PARM_DESC(disable50, "manually disable the 50XX radio (default 0 [radio on])"); module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444); MODULE_PARM_DESC(swcrypto50, "using software crypto engine (default 0 [hardware])\n"); module_param_named(debug50, iwl50_mod_params.debug, int, 0444); MODULE_PARM_DESC(debug50, "50XX debug output mask"); module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444); MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series"); module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444); MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality"); module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444); MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series"); module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444); MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");