| /****************************************************************************** |
| * |
| * 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 <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 <linux/delay.h> |
| #include <linux/skbuff.h> |
| #include <linux/netdevice.h> |
| #include <linux/wireless.h> |
| #include <net/mac80211.h> |
| #include <linux/etherdevice.h> |
| #include <asm/unaligned.h> |
| |
| #include "iwl-eeprom.h" |
| #include "iwl-dev.h" |
| #include "iwl-core.h" |
| #include "iwl-io.h" |
| #include "iwl-sta.h" |
| #include "iwl-helpers.h" |
| #include "iwl-5000-hw.h" |
| |
| #define IWL5000_UCODE_API "-1" |
| |
| static const u16 iwl5000_default_queue_to_tx_fifo[] = { |
| IWL_TX_FIFO_AC3, |
| IWL_TX_FIFO_AC2, |
| IWL_TX_FIFO_AC1, |
| IWL_TX_FIFO_AC0, |
| IWL50_CMD_FIFO_NUM, |
| IWL_TX_FIFO_HCCA_1, |
| IWL_TX_FIFO_HCCA_2 |
| }; |
| |
| /* FIXME: same implementation as 4965 */ |
| static int iwl5000_apm_stop_master(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| /* set stop master bit */ |
| iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); |
| |
| ret = iwl_poll_bit(priv, CSR_RESET, |
| CSR_RESET_REG_FLAG_MASTER_DISABLED, |
| CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); |
| if (ret < 0) |
| goto out; |
| |
| out: |
| spin_unlock_irqrestore(&priv->lock, flags); |
| IWL_DEBUG_INFO("stop master\n"); |
| |
| return ret; |
| } |
| |
| |
| 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); |
| |
| /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */ |
| iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
| CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); |
| |
| 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); |
| |
| /* disable L1-Active */ |
| iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
| APMG_PCIDEV_STT_VAL_L1_ACT_DIS); |
| |
| iwl_release_nic_access(priv); |
| |
| return ret; |
| } |
| |
| /* FIXME: this is indentical to 4965 */ |
| static void iwl5000_apm_stop(struct iwl_priv *priv) |
| { |
| unsigned long flags; |
| |
| iwl5000_apm_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); |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| |
| |
| static int iwl5000_apm_reset(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| unsigned long flags; |
| |
| iwl5000_apm_stop_master(priv); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
| |
| udelay(10); |
| |
| |
| /* FIXME: put here L1A -L0S w/a */ |
| |
| 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"); |
| goto out; |
| } |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) |
| goto out; |
| |
| /* enable DMA */ |
| iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); |
| |
| udelay(20); |
| |
| /* disable L1-Active */ |
| 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 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); |
| |
| /* L1 is enabled by BIOS */ |
| if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN) |
| /* diable L0S disabled L1A enabled */ |
| iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); |
| else |
| /* L0S enabled L1A disabled */ |
| iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); |
| |
| 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; |
| |
| } |
| |
| 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 void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, |
| __le32 *tx_flags) |
| { |
| if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || |
| (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) |
| *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; |
| else |
| *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; |
| } |
| |
| 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, |
| }; |
| |
| 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]; |
| } |
| |
| /* |
| * Calibration |
| */ |
| static int iwl5000_send_Xtal_calib(struct iwl_priv *priv) |
| { |
| u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL); |
| |
| struct iwl5000_calibration cal_cmd = { |
| .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD, |
| .data = { |
| (u8)xtal_calib[0], |
| (u8)xtal_calib[1], |
| } |
| }; |
| |
| return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, |
| sizeof(cal_cmd), &cal_cmd); |
| } |
| |
| static int iwl5000_send_calib_results(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| |
| struct iwl_host_cmd hcmd = { |
| .id = REPLY_PHY_CALIBRATION_CMD, |
| .meta.flags = CMD_SIZE_HUGE, |
| }; |
| |
| if (priv->calib_results.lo_res) { |
| hcmd.len = priv->calib_results.lo_res_len; |
| hcmd.data = priv->calib_results.lo_res; |
| ret = iwl_send_cmd_sync(priv, &hcmd); |
| |
| if (ret) |
| goto err; |
| } |
| |
| if (priv->calib_results.tx_iq_res) { |
| hcmd.len = priv->calib_results.tx_iq_res_len; |
| hcmd.data = priv->calib_results.tx_iq_res; |
| ret = iwl_send_cmd_sync(priv, &hcmd); |
| |
| if (ret) |
| goto err; |
| } |
| |
| if (priv->calib_results.tx_iq_perd_res) { |
| hcmd.len = priv->calib_results.tx_iq_perd_res_len; |
| hcmd.data = priv->calib_results.tx_iq_perd_res; |
| ret = iwl_send_cmd_sync(priv, &hcmd); |
| |
| if (ret) |
| goto err; |
| } |
| |
| return 0; |
| err: |
| IWL_ERROR("Error %d\n", ret); |
| return ret; |
| } |
| |
| static int iwl5000_send_calib_cfg(struct iwl_priv *priv) |
| { |
| struct iwl5000_calib_cfg_cmd calib_cfg_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = CALIBRATION_CFG_CMD, |
| .len = sizeof(struct iwl5000_calib_cfg_cmd), |
| .data = &calib_cfg_cmd, |
| }; |
| |
| memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); |
| calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; |
| calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL; |
| calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL; |
| calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL; |
| |
| return iwl_send_cmd(priv, &cmd); |
| } |
| |
| static void iwl5000_rx_calib_result(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
| struct iwl5000_calib_hdr *hdr = (struct iwl5000_calib_hdr *)pkt->u.raw; |
| int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK; |
| |
| iwl_free_calib_results(priv); |
| |
| /* reduce the size of the length field itself */ |
| len -= 4; |
| |
| switch (hdr->op_code) { |
| case IWL5000_PHY_CALIBRATE_LO_CMD: |
| priv->calib_results.lo_res = kzalloc(len, GFP_ATOMIC); |
| priv->calib_results.lo_res_len = len; |
| memcpy(priv->calib_results.lo_res, pkt->u.raw, len); |
| break; |
| case IWL5000_PHY_CALIBRATE_TX_IQ_CMD: |
| priv->calib_results.tx_iq_res = kzalloc(len, GFP_ATOMIC); |
| priv->calib_results.tx_iq_res_len = len; |
| memcpy(priv->calib_results.tx_iq_res, pkt->u.raw, len); |
| break; |
| case IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD: |
| priv->calib_results.tx_iq_perd_res = kzalloc(len, GFP_ATOMIC); |
| priv->calib_results.tx_iq_perd_res_len = len; |
| memcpy(priv->calib_results.tx_iq_perd_res, pkt->u.raw, len); |
| break; |
| default: |
| IWL_ERROR("Unknown calibration notification %d\n", |
| hdr->op_code); |
| return; |
| } |
| } |
| |
| static void iwl5000_rx_calib_complete(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n"); |
| queue_work(priv->workqueue, &priv->restart); |
| } |
| |
| /* |
| * ucode |
| */ |
| static int iwl5000_load_section(struct iwl_priv *priv, |
| struct fw_desc *image, |
| u32 dst_addr) |
| { |
| int ret = 0; |
| unsigned long flags; |
| |
| dma_addr_t phy_addr = image->p_addr; |
| u32 byte_cnt = image->len; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| ret = iwl_grab_nic_access(priv); |
| if (ret) { |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return ret; |
| } |
| |
| iwl_write_direct32(priv, |
| FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL), |
| FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE); |
| |
| iwl_write_direct32(priv, |
| FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr); |
| |
| iwl_write_direct32(priv, |
| FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL), |
| phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); |
| |
| /* FIME: write the MSB of the phy_addr in CTRL1 |
| * iwl_write_direct32(priv, |
| IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL), |
| ((phy_addr & MSB_MSK) |
| << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count); |
| */ |
| iwl_write_direct32(priv, |
| FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt); |
| iwl_write_direct32(priv, |
| FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL), |
| 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM | |
| 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX | |
| FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID); |
| |
| iwl_write_direct32(priv, |
| FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL), |
| FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | |
| FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL | |
| FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD); |
| |
| iwl_release_nic_access(priv); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return 0; |
| } |
| |
| static int iwl5000_load_given_ucode(struct iwl_priv *priv, |
| struct fw_desc *inst_image, |
| struct fw_desc *data_image) |
| { |
| int ret = 0; |
| |
| ret = iwl5000_load_section( |
| priv, inst_image, RTC_INST_LOWER_BOUND); |
| if (ret) |
| return ret; |
| |
| IWL_DEBUG_INFO("INST uCode section being loaded...\n"); |
| ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
| priv->ucode_write_complete, 5 * HZ); |
| if (ret == -ERESTARTSYS) { |
| IWL_ERROR("Could not load the INST uCode section due " |
| "to interrupt\n"); |
| return ret; |
| } |
| if (!ret) { |
| IWL_ERROR("Could not load the INST uCode section\n"); |
| return -ETIMEDOUT; |
| } |
| |
| priv->ucode_write_complete = 0; |
| |
| ret = iwl5000_load_section( |
| priv, data_image, RTC_DATA_LOWER_BOUND); |
| if (ret) |
| return ret; |
| |
| IWL_DEBUG_INFO("DATA uCode section being loaded...\n"); |
| |
| ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
| priv->ucode_write_complete, 5 * HZ); |
| if (ret == -ERESTARTSYS) { |
| IWL_ERROR("Could not load the INST uCode section due " |
| "to interrupt\n"); |
| return ret; |
| } else if (!ret) { |
| IWL_ERROR("Could not load the DATA uCode section\n"); |
| return -ETIMEDOUT; |
| } else |
| ret = 0; |
| |
| priv->ucode_write_complete = 0; |
| |
| return ret; |
| } |
| |
| static int iwl5000_load_ucode(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| |
| /* check whether init ucode should be loaded, or rather runtime ucode */ |
| if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) { |
| IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n"); |
| ret = iwl5000_load_given_ucode(priv, |
| &priv->ucode_init, &priv->ucode_init_data); |
| if (!ret) { |
| IWL_DEBUG_INFO("Init ucode load complete.\n"); |
| priv->ucode_type = UCODE_INIT; |
| } |
| } else { |
| IWL_DEBUG_INFO("Init ucode not found, or already loaded. " |
| "Loading runtime ucode...\n"); |
| ret = iwl5000_load_given_ucode(priv, |
| &priv->ucode_code, &priv->ucode_data); |
| if (!ret) { |
| IWL_DEBUG_INFO("Runtime ucode load complete.\n"); |
| priv->ucode_type = UCODE_RT; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static void iwl5000_init_alive_start(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| |
| /* 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("Initialize Alive failed.\n"); |
| goto restart; |
| } |
| |
| /* initialize uCode was loaded... 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("Bad \"initialize\" uCode load.\n"); |
| goto restart; |
| } |
| |
| iwl_clear_stations_table(priv); |
| ret = priv->cfg->ops->lib->alive_notify(priv); |
| if (ret) { |
| IWL_WARNING("Could not complete ALIVE transition: %d\n", ret); |
| goto restart; |
| } |
| |
| iwl5000_send_calib_cfg(priv); |
| return; |
| |
| restart: |
| /* real restart (first load init_ucode) */ |
| queue_work(priv->workqueue, &priv->restart); |
| } |
| |
| static void iwl5000_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, IWL50_SCD_QUEUE_RDPTR(txq_id), index); |
| } |
| |
| static void iwl5000_tx_queue_set_status(struct iwl_priv *priv, |
| struct iwl_tx_queue *txq, |
| int tx_fifo_id, int scd_retry) |
| { |
| int txq_id = txq->q.id; |
| int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0; |
| |
| iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id), |
| (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) | |
| (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) | |
| (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) | |
| IWL50_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 int iwl5000_send_wimax_coex(struct iwl_priv *priv) |
| { |
| struct iwl_wimax_coex_cmd coex_cmd; |
| |
| memset(&coex_cmd, 0, sizeof(coex_cmd)); |
| |
| return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD, |
| sizeof(coex_cmd), &coex_cmd); |
| } |
| |
| static int iwl5000_alive_notify(struct iwl_priv *priv) |
| { |
| u32 a; |
| int i = 0; |
| unsigned long flags; |
| int ret; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) { |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return ret; |
| } |
| |
| priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR); |
| a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET; |
| for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET; |
| a += 4) |
| iwl_write_targ_mem(priv, a, 0); |
| for (; a < priv->scd_base_addr + IWL50_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) |
| iwl_write_targ_mem(priv, a, 0); |
| |
| iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR, |
| (priv->shared_phys + |
| offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10); |
| iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, |
| IWL50_SCD_QUEUECHAIN_SEL_ALL( |
| priv->hw_params.max_txq_num)); |
| iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0); |
| |
| /* initiate the queues */ |
| for (i = 0; i < priv->hw_params.max_txq_num; i++) { |
| iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0); |
| iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); |
| iwl_write_targ_mem(priv, priv->scd_base_addr + |
| IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0); |
| iwl_write_targ_mem(priv, priv->scd_base_addr + |
| IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) + |
| sizeof(u32), |
| ((SCD_WIN_SIZE << |
| IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & |
| IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | |
| ((SCD_FRAME_LIMIT << |
| IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & |
| IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); |
| } |
| |
| iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK, |
| IWL_MASK(0, priv->hw_params.max_txq_num)); |
| |
| /* Activate all Tx DMA/FIFO channels */ |
| priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7)); |
| |
| iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); |
| /* map qos queues to fifos one-to-one */ |
| for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) { |
| int ac = iwl5000_default_queue_to_tx_fifo[i]; |
| iwl_txq_ctx_activate(priv, i); |
| iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0); |
| } |
| /* TODO - need to initialize those FIFOs inside the loop above, |
| * not only mark them as active */ |
| iwl_txq_ctx_activate(priv, 4); |
| iwl_txq_ctx_activate(priv, 7); |
| iwl_txq_ctx_activate(priv, 8); |
| iwl_txq_ctx_activate(priv, 9); |
| |
| iwl_release_nic_access(priv); |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| |
| iwl5000_send_wimax_coex(priv); |
| |
| iwl5000_send_Xtal_calib(priv); |
| |
| if (priv->ucode_type == UCODE_RT) |
| iwl5000_send_calib_results(priv); |
| |
| return 0; |
| } |
| |
| 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.first_ampdu_q = IWL50_FIRST_AMPDU_QUEUE; |
| 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 = 0; |
| priv->hw_params.fat_channel = BIT(IEEE80211_BAND_2GHZ) | |
| BIT(IEEE80211_BAND_5GHZ); |
| priv->hw_params.sens = &iwl5000_sensitivity; |
| |
| 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 void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, |
| struct iwl_tx_queue *txq) |
| { |
| int txq_id = txq->q.id; |
| struct iwl5000_shared *shared_data = priv->shared_virt; |
| u8 sta = 0; |
| |
| if (txq_id != IWL_CMD_QUEUE_NUM) |
| sta = txq->cmd[txq->q.read_ptr].cmd.tx.sta_id; |
| |
| shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr]. |
| val = cpu_to_le16(1 | (sta << 12)); |
| |
| if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { |
| shared_data->queues_byte_cnt_tbls[txq_id]. |
| tfd_offset[IWL50_QUEUE_SIZE + txq->q.read_ptr]. |
| val = cpu_to_le16(1 | (sta << 12)); |
| } |
| } |
| |
| static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, |
| u16 txq_id) |
| { |
| u32 tbl_dw_addr; |
| u32 tbl_dw; |
| u16 scd_q2ratid; |
| |
| scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; |
| |
| tbl_dw_addr = priv->scd_base_addr + |
| IWL50_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); |
| |
| tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); |
| |
| if (txq_id & 0x1) |
| tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); |
| else |
| tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); |
| |
| iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); |
| |
| return 0; |
| } |
| static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id) |
| { |
| /* Simply stop the queue, but don't change any configuration; |
| * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ |
| iwl_write_prph(priv, |
| IWL50_SCD_QUEUE_STATUS_BITS(txq_id), |
| (0 << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE)| |
| (1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); |
| } |
| |
| static int iwl5000_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 ret; |
| u16 ra_tid; |
| |
| if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) || |
| (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) { |
| IWL_WARNING("queue number out of range: %d, must be %d to %d\n", |
| txq_id, IWL50_FIRST_AMPDU_QUEUE, |
| IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1); |
| return -EINVAL; |
| } |
| |
| ra_tid = BUILD_RAxTID(sta_id, tid); |
| |
| /* Modify device's station table to Tx this TID */ |
| iwl_sta_modify_enable_tid_tx(priv, sta_id, tid); |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| ret = iwl_grab_nic_access(priv); |
| if (ret) { |
| spin_unlock_irqrestore(&priv->lock, flags); |
| return ret; |
| } |
| |
| /* Stop this Tx queue before configuring it */ |
| iwl5000_tx_queue_stop_scheduler(priv, txq_id); |
| |
| /* Map receiver-address / traffic-ID to this queue */ |
| iwl5000_tx_queue_set_q2ratid(priv, ra_tid, txq_id); |
| |
| /* Set this queue as a chain-building queue */ |
| iwl_set_bits_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, (1<<txq_id)); |
| |
| /* enable aggregations for the queue */ |
| iwl_set_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1<<txq_id)); |
| |
| /* Place first TFD at index corresponding to start sequence number. |
| * Assumes that ssn_idx is valid (!= 0xFFF) */ |
| priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); |
| priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); |
| iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); |
| |
| /* Set up Tx window size and frame limit for this queue */ |
| iwl_write_targ_mem(priv, priv->scd_base_addr + |
| IWL50_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + |
| sizeof(u32), |
| ((SCD_WIN_SIZE << |
| IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & |
| IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | |
| ((SCD_FRAME_LIMIT << |
| IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & |
| IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); |
| |
| iwl_set_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); |
| |
| /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ |
| iwl5000_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; |
| } |
| |
| static int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, |
| u16 ssn_idx, u8 tx_fifo) |
| { |
| int ret; |
| |
| if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) || |
| (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) { |
| IWL_WARNING("queue number out of range: %d, must be %d to %d\n", |
| txq_id, IWL50_FIRST_AMPDU_QUEUE, |
| IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1); |
| return -EINVAL; |
| } |
| |
| ret = iwl_grab_nic_access(priv); |
| if (ret) |
| return ret; |
| |
| iwl5000_tx_queue_stop_scheduler(priv, txq_id); |
| |
| iwl_clear_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1 << txq_id)); |
| |
| priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); |
| priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); |
| /* supposes that ssn_idx is valid (!= 0xFFF) */ |
| iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); |
| |
| iwl_clear_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); |
| iwl_txq_ctx_deactivate(priv, txq_id); |
| iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); |
| |
| iwl_release_nic_access(priv); |
| |
| return 0; |
| } |
| |
| 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; |
| } |
| |
| |
| /* |
| * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask |
| * must be called under priv->lock and mac access |
| */ |
| static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask) |
| { |
| iwl_write_prph(priv, IWL50_SCD_TXFACT, mask); |
| } |
| |
| |
| static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp) |
| { |
| return le32_to_cpup((__le32 *)&tx_resp->status + |
| tx_resp->frame_count) & MAX_SN; |
| } |
| |
| static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, |
| struct iwl_ht_agg *agg, |
| struct iwl5000_tx_resp *tx_resp, |
| int txq_id, u16 start_idx) |
| { |
| u16 status; |
| struct agg_tx_status *frame_status = &tx_resp->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("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; |
| |
| /* # 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("FrameCnt = %d, StartIdx=%d idx=%d\n", |
| agg->frame_count, agg->start_idx, idx); |
| |
| info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); |
| info->status.retry_count = tx_resp->failure_frame; |
| info->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("1 Frame 0x%x failure :%d\n", |
| status & 0xff, tx_resp->failure_frame); |
| IWL_DEBUG_TX_REPLY("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("FrameCnt = %d, txq_id=%d idx=%d\n", |
| agg->frame_count, txq_id, idx); |
| |
| hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx); |
| |
| sc = le16_to_cpu(hdr->seq_ctrl); |
| if (idx != (SEQ_TO_SN(sc) & 0xff)) { |
| IWL_ERROR("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; |
| } |
| |
| IWL_DEBUG_TX_REPLY("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("start=%d bitmap=0x%llx\n", |
| start, (unsigned long long)bitmap); |
| } |
| |
| agg->bitmap = bitmap; |
| agg->start_idx = start; |
| IWL_DEBUG_TX_REPLY("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 void iwl5000_rx_reply_tx(struct iwl_priv *priv, |
| struct iwl_rx_mem_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
| 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_tx_info *info; |
| struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; |
| u32 status = le16_to_cpu(tx_resp->status.status); |
| int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION; |
| struct ieee80211_hdr *hdr; |
| u8 *qc = NULL; |
| |
| if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) { |
| IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " |
| "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; |
| } |
| |
| info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); |
| memset(&info->status, 0, sizeof(info->status)); |
| |
| 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; |
| } |
| |
| sta_id = iwl_get_ra_sta_id(priv, hdr); |
| if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) { |
| IWL_ERROR("Station not known\n"); |
| return; |
| } |
| |
| if (txq->sched_retry) { |
| const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp); |
| struct iwl_ht_agg *agg = NULL; |
| |
| if (!qc) |
| return; |
| |
| agg = &priv->stations[sta_id].tid[tid].agg; |
| |
| iwl5000_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); |
| |
| /* check if BAR is needed */ |
| if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) |
| info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; |
| |
| if (txq->q.read_ptr != (scd_ssn & 0xff)) { |
| int freed, ampdu_q; |
| index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); |
| IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " |
| "%d index %d\n", scd_ssn , index); |
| freed = iwl_tx_queue_reclaim(priv, txq_id, index); |
| priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; |
| |
| if (iwl_queue_space(&txq->q) > txq->q.low_mark && |
| txq_id >= 0 && priv->mac80211_registered && |
| agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) { |
| /* calculate mac80211 ampdu sw queue to wake */ |
| ampdu_q = txq_id - IWL50_FIRST_AMPDU_QUEUE + |
| priv->hw->queues; |
| if (agg->state == IWL_AGG_OFF) |
| ieee80211_wake_queue(priv->hw, txq_id); |
| else |
| ieee80211_wake_queue(priv->hw, ampdu_q); |
| } |
| iwl_txq_check_empty(priv, sta_id, tid, txq_id); |
| } |
| } else { |
| info->status.retry_count = tx_resp->failure_frame; |
| info->flags = |
| iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; |
| iwl_hwrate_to_tx_control(priv, |
| le32_to_cpu(tx_resp->rate_n_flags), |
| info); |
| |
| IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags " |
| "0x%x retries %d\n", txq_id, |
| iwl_get_tx_fail_reason(status), |
| status, le32_to_cpu(tx_resp->rate_n_flags), |
| tx_resp->failure_frame); |
| |
| IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); |
| if (index != -1) { |
| int freed = iwl_tx_queue_reclaim(priv, txq_id, index); |
| if (tid != MAX_TID_COUNT) |
| priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; |
| if (iwl_queue_space(&txq->q) > txq->q.low_mark && |
| (txq_id >= 0) && priv->mac80211_registered) |
| ieee80211_wake_queue(priv->hw, txq_id); |
| if (tid != MAX_TID_COUNT) |
| iwl_txq_check_empty(priv, sta_id, tid, txq_id); |
| } |
| } |
| |
| if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) |
| IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); |
| } |
| |
| /* Currently 5000 is the supperset of everything */ |
| static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len) |
| { |
| return len; |
| } |
| |
| static void iwl5000_setup_deferred_work(struct iwl_priv *priv) |
| { |
| /* in 5000 the tx power calibration is done in uCode */ |
| priv->disable_tx_power_cal = 1; |
| } |
| |
| static void iwl5000_rx_handler_setup(struct iwl_priv *priv) |
| { |
| /* init calibration handlers */ |
| priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] = |
| iwl5000_rx_calib_result; |
| priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] = |
| iwl5000_rx_calib_complete; |
| priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx; |
| } |
| |
| |
| static int iwl5000_hw_valid_rtc_data_addr(u32 addr) |
| { |
| return (addr >= RTC_DATA_LOWER_BOUND) && |
| (addr < IWL50_RTC_DATA_UPPER_BOUND); |
| } |
| |
| static int iwl5000_send_rxon_assoc(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| struct iwl5000_rxon_assoc_cmd rxon_assoc; |
| 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) && |
| (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && |
| (rxon1->ofdm_ht_single_stream_basic_rates == |
| rxon2->ofdm_ht_single_stream_basic_rates) && |
| (rxon1->ofdm_ht_dual_stream_basic_rates == |
| rxon2->ofdm_ht_dual_stream_basic_rates) && |
| (rxon1->ofdm_ht_triple_stream_basic_rates == |
| rxon2->ofdm_ht_triple_stream_basic_rates) && |
| (rxon1->acquisition_data == rxon2->acquisition_data) && |
| (rxon1->rx_chain == rxon2->rx_chain) && |
| (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { |
| IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); |
| return 0; |
| } |
| |
| rxon_assoc.flags = priv->staging_rxon.flags; |
| rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; |
| rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; |
| rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; |
| rxon_assoc.reserved1 = 0; |
| rxon_assoc.reserved2 = 0; |
| rxon_assoc.reserved3 = 0; |
| rxon_assoc.ofdm_ht_single_stream_basic_rates = |
| priv->staging_rxon.ofdm_ht_single_stream_basic_rates; |
| rxon_assoc.ofdm_ht_dual_stream_basic_rates = |
| priv->staging_rxon.ofdm_ht_dual_stream_basic_rates; |
| rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain; |
| rxon_assoc.ofdm_ht_triple_stream_basic_rates = |
| priv->staging_rxon.ofdm_ht_triple_stream_basic_rates; |
| rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data; |
| |
| ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, |
| sizeof(rxon_assoc), &rxon_assoc, NULL); |
| if (ret) |
| return ret; |
| |
| return ret; |
| } |
| static int iwl5000_send_tx_power(struct iwl_priv *priv) |
| { |
| struct iwl5000_tx_power_dbm_cmd tx_power_cmd; |
| |
| /* half dBm need to multiply */ |
| tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt); |
| tx_power_cmd.flags = IWL50_TX_POWER_NO_CLOSED; |
| tx_power_cmd.srv_chan_lmt = IWL50_TX_POWER_AUTO; |
| return iwl_send_cmd_pdu_async(priv, REPLY_TX_POWER_DBM_CMD, |
| sizeof(tx_power_cmd), &tx_power_cmd, |
| NULL); |
| } |
| |
| static void iwl5000_temperature(struct iwl_priv *priv) |
| { |
| /* store temperature from statistics (in Celsius) */ |
| priv->temperature = le32_to_cpu(priv->statistics.general.temperature); |
| } |
| |
| static struct iwl_hcmd_ops iwl5000_hcmd = { |
| .rxon_assoc = iwl5000_send_rxon_assoc, |
| }; |
| |
| static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = { |
| .get_hcmd_size = iwl5000_get_hcmd_size, |
| .build_addsta_hcmd = iwl5000_build_addsta_hcmd, |
| .gain_computation = iwl5000_gain_computation, |
| .chain_noise_reset = iwl5000_chain_noise_reset, |
| .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag, |
| }; |
| |
| 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, |
| .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl, |
| .txq_set_sched = iwl5000_txq_set_sched, |
| .txq_agg_enable = iwl5000_txq_agg_enable, |
| .txq_agg_disable = iwl5000_txq_agg_disable, |
| .rx_handler_setup = iwl5000_rx_handler_setup, |
| .setup_deferred_work = iwl5000_setup_deferred_work, |
| .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, |
| .load_ucode = iwl5000_load_ucode, |
| .init_alive_start = iwl5000_init_alive_start, |
| .alive_notify = iwl5000_alive_notify, |
| .send_tx_power = iwl5000_send_tx_power, |
| .temperature = iwl5000_temperature, |
| .update_chain_flags = iwl4965_update_chain_flags, |
| .apm_ops = { |
| .init = iwl5000_apm_init, |
| .reset = iwl5000_apm_reset, |
| .stop = iwl5000_apm_stop, |
| .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, |
| .num_of_ampdu_queues = IWL50_NUM_AMPDU_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_bg_cfg = { |
| .name = "5100BG", |
| .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", |
| .sku = IWL_SKU_G, |
| .ops = &iwl5000_ops, |
| .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, |
| .mod_params = &iwl50_mod_params, |
| }; |
| |
| struct iwl_cfg iwl5100_abg_cfg = { |
| .name = "5100ABG", |
| .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", |
| .sku = IWL_SKU_A|IWL_SKU_G, |
| .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(11n_disable50, iwl50_mod_params.disable_11n, int, 0444); |
| MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n 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"); |