| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2013 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 COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <net/mac80211.h> |
| |
| #include "iwl-debug.h" |
| #include "iwl-io.h" |
| |
| #include "mvm.h" |
| #include "fw-api-rs.h" |
| |
| /* |
| * Will return 0 even if the cmd failed when RFKILL is asserted unless |
| * CMD_WANT_SKB is set in cmd->flags. |
| */ |
| int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) |
| { |
| int ret; |
| |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) |
| if (WARN_ON(mvm->d3_test_active)) |
| return -EIO; |
| #endif |
| |
| /* |
| * Synchronous commands from this op-mode must hold |
| * the mutex, this ensures we don't try to send two |
| * (or more) synchronous commands at a time. |
| */ |
| if (!(cmd->flags & CMD_ASYNC)) |
| lockdep_assert_held(&mvm->mutex); |
| |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); |
| |
| /* |
| * If the caller wants the SKB, then don't hide any problems, the |
| * caller might access the response buffer which will be NULL if |
| * the command failed. |
| */ |
| if (cmd->flags & CMD_WANT_SKB) |
| return ret; |
| |
| /* Silently ignore failures if RFKILL is asserted */ |
| if (!ret || ret == -ERFKILL) |
| return 0; |
| return ret; |
| } |
| |
| int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id, |
| u32 flags, u16 len, const void *data) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = id, |
| .len = { len, }, |
| .data = { data, }, |
| .flags = flags, |
| }; |
| |
| return iwl_mvm_send_cmd(mvm, &cmd); |
| } |
| |
| /* |
| * We assume that the caller set the status to the sucess value |
| */ |
| int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, |
| u32 *status) |
| { |
| struct iwl_rx_packet *pkt; |
| struct iwl_cmd_response *resp; |
| int ret, resp_len; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) |
| if (WARN_ON(mvm->d3_test_active)) |
| return -EIO; |
| #endif |
| |
| /* |
| * Only synchronous commands can wait for status, |
| * we use WANT_SKB so the caller can't. |
| */ |
| if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), |
| "cmd flags %x", cmd->flags)) |
| return -EINVAL; |
| |
| cmd->flags |= CMD_SYNC | CMD_WANT_SKB; |
| |
| ret = iwl_trans_send_cmd(mvm->trans, cmd); |
| if (ret == -ERFKILL) { |
| /* |
| * The command failed because of RFKILL, don't update |
| * the status, leave it as success and return 0. |
| */ |
| return 0; |
| } else if (ret) { |
| return ret; |
| } |
| |
| pkt = cmd->resp_pkt; |
| /* Can happen if RFKILL is asserted */ |
| if (!pkt) { |
| ret = 0; |
| goto out_free_resp; |
| } |
| |
| if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { |
| ret = -EIO; |
| goto out_free_resp; |
| } |
| |
| resp_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
| if (WARN_ON_ONCE(resp_len != sizeof(pkt->hdr) + sizeof(*resp))) { |
| ret = -EIO; |
| goto out_free_resp; |
| } |
| |
| resp = (void *)pkt->data; |
| *status = le32_to_cpu(resp->status); |
| out_free_resp: |
| iwl_free_resp(cmd); |
| return ret; |
| } |
| |
| /* |
| * We assume that the caller set the status to the sucess value |
| */ |
| int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len, |
| const void *data, u32 *status) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = id, |
| .len = { len, }, |
| .data = { data, }, |
| }; |
| |
| return iwl_mvm_send_cmd_status(mvm, &cmd, status); |
| } |
| |
| #define IWL_DECLARE_RATE_INFO(r) \ |
| [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP |
| |
| /* |
| * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP |
| */ |
| static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { |
| IWL_DECLARE_RATE_INFO(1), |
| IWL_DECLARE_RATE_INFO(2), |
| IWL_DECLARE_RATE_INFO(5), |
| IWL_DECLARE_RATE_INFO(11), |
| IWL_DECLARE_RATE_INFO(6), |
| IWL_DECLARE_RATE_INFO(9), |
| IWL_DECLARE_RATE_INFO(12), |
| IWL_DECLARE_RATE_INFO(18), |
| IWL_DECLARE_RATE_INFO(24), |
| IWL_DECLARE_RATE_INFO(36), |
| IWL_DECLARE_RATE_INFO(48), |
| IWL_DECLARE_RATE_INFO(54), |
| }; |
| |
| int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, |
| enum ieee80211_band band) |
| { |
| int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; |
| int idx; |
| int band_offset = 0; |
| |
| /* Legacy rate format, search for match in table */ |
| if (band == IEEE80211_BAND_5GHZ) |
| band_offset = IWL_FIRST_OFDM_RATE; |
| for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) |
| if (fw_rate_idx_to_plcp[idx] == rate) |
| return idx - band_offset; |
| |
| return -1; |
| } |
| |
| u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) |
| { |
| /* Get PLCP rate for tx_cmd->rate_n_flags */ |
| return fw_rate_idx_to_plcp[rate_idx]; |
| } |
| |
| int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *cmd) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_error_resp *err_resp = (void *)pkt->data; |
| |
| IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", |
| le32_to_cpu(err_resp->error_type), err_resp->cmd_id); |
| IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", |
| le16_to_cpu(err_resp->bad_cmd_seq_num), |
| le32_to_cpu(err_resp->error_service)); |
| IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", |
| le64_to_cpu(err_resp->timestamp)); |
| return 0; |
| } |
| |
| /* |
| * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. |
| * The parameter should also be a combination of ANT_[ABC]. |
| */ |
| u8 first_antenna(u8 mask) |
| { |
| BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ |
| if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ |
| return BIT(0); |
| return BIT(ffs(mask) - 1); |
| } |
| |
| /* |
| * Toggles between TX antennas to send the probe request on. |
| * Receives the bitmask of valid TX antennas and the *index* used |
| * for the last TX, and returns the next valid *index* to use. |
| * In order to set it in the tx_cmd, must do BIT(idx). |
| */ |
| u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) |
| { |
| u8 ind = last_idx; |
| int i; |
| |
| for (i = 0; i < RATE_MCS_ANT_NUM; i++) { |
| ind = (ind + 1) % RATE_MCS_ANT_NUM; |
| if (valid & BIT(ind)) |
| return ind; |
| } |
| |
| WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); |
| return last_idx; |
| } |
| |
| static struct { |
| char *name; |
| u8 num; |
| } advanced_lookup[] = { |
| { "NMI_INTERRUPT_WDG", 0x34 }, |
| { "SYSASSERT", 0x35 }, |
| { "UCODE_VERSION_MISMATCH", 0x37 }, |
| { "BAD_COMMAND", 0x38 }, |
| { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, |
| { "FATAL_ERROR", 0x3D }, |
| { "NMI_TRM_HW_ERR", 0x46 }, |
| { "NMI_INTERRUPT_TRM", 0x4C }, |
| { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, |
| { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, |
| { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, |
| { "NMI_INTERRUPT_HOST", 0x66 }, |
| { "NMI_INTERRUPT_ACTION_PT", 0x7C }, |
| { "NMI_INTERRUPT_UNKNOWN", 0x84 }, |
| { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, |
| { "ADVANCED_SYSASSERT", 0 }, |
| }; |
| |
| static const char *desc_lookup(u32 num) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++) |
| if (advanced_lookup[i].num == num) |
| return advanced_lookup[i].name; |
| |
| /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ |
| return advanced_lookup[i].name; |
| } |
| |
| /* |
| * Note: This structure is read from the device with IO accesses, |
| * and the reading already does the endian conversion. As it is |
| * read with u32-sized accesses, any members with a different size |
| * need to be ordered correctly though! |
| */ |
| struct iwl_error_event_table { |
| u32 valid; /* (nonzero) valid, (0) log is empty */ |
| u32 error_id; /* type of error */ |
| u32 pc; /* program counter */ |
| u32 blink1; /* branch link */ |
| u32 blink2; /* branch link */ |
| u32 ilink1; /* interrupt link */ |
| u32 ilink2; /* interrupt link */ |
| u32 data1; /* error-specific data */ |
| u32 data2; /* error-specific data */ |
| u32 data3; /* error-specific data */ |
| u32 bcon_time; /* beacon timer */ |
| u32 tsf_low; /* network timestamp function timer */ |
| u32 tsf_hi; /* network timestamp function timer */ |
| u32 gp1; /* GP1 timer register */ |
| u32 gp2; /* GP2 timer register */ |
| u32 gp3; /* GP3 timer register */ |
| u32 ucode_ver; /* uCode version */ |
| u32 hw_ver; /* HW Silicon version */ |
| u32 brd_ver; /* HW board version */ |
| u32 log_pc; /* log program counter */ |
| u32 frame_ptr; /* frame pointer */ |
| u32 stack_ptr; /* stack pointer */ |
| u32 hcmd; /* last host command header */ |
| u32 isr0; /* isr status register LMPM_NIC_ISR0: |
| * rxtx_flag */ |
| u32 isr1; /* isr status register LMPM_NIC_ISR1: |
| * host_flag */ |
| u32 isr2; /* isr status register LMPM_NIC_ISR2: |
| * enc_flag */ |
| u32 isr3; /* isr status register LMPM_NIC_ISR3: |
| * time_flag */ |
| u32 isr4; /* isr status register LMPM_NIC_ISR4: |
| * wico interrupt */ |
| u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ |
| u32 wait_event; /* wait event() caller address */ |
| u32 l2p_control; /* L2pControlField */ |
| u32 l2p_duration; /* L2pDurationField */ |
| u32 l2p_mhvalid; /* L2pMhValidBits */ |
| u32 l2p_addr_match; /* L2pAddrMatchStat */ |
| u32 lmpm_pmg_sel; /* indicate which clocks are turned on |
| * (LMPM_PMG_SEL) */ |
| u32 u_timestamp; /* indicate when the date and time of the |
| * compilation */ |
| u32 flow_handler; /* FH read/write pointers, RX credit */ |
| } __packed; |
| |
| #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| |
| void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) |
| { |
| struct iwl_trans *trans = mvm->trans; |
| struct iwl_error_event_table table; |
| u32 base; |
| |
| base = mvm->error_event_table; |
| if (mvm->cur_ucode == IWL_UCODE_INIT) { |
| if (!base) |
| base = mvm->fw->init_errlog_ptr; |
| } else { |
| if (!base) |
| base = mvm->fw->inst_errlog_ptr; |
| } |
| |
| if (base < 0x800000 || base >= 0x80C000) { |
| IWL_ERR(mvm, |
| "Not valid error log pointer 0x%08X for %s uCode\n", |
| base, |
| (mvm->cur_ucode == IWL_UCODE_INIT) |
| ? "Init" : "RT"); |
| return; |
| } |
| |
| iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); |
| |
| if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { |
| IWL_ERR(trans, "Start IWL Error Log Dump:\n"); |
| IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", |
| mvm->status, table.valid); |
| } |
| |
| trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, |
| table.data1, table.data2, table.data3, |
| table.blink1, table.blink2, table.ilink1, |
| table.ilink2, table.bcon_time, table.gp1, |
| table.gp2, table.gp3, table.ucode_ver, |
| table.hw_ver, table.brd_ver); |
| IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, |
| desc_lookup(table.error_id)); |
| IWL_ERR(mvm, "0x%08X | uPc\n", table.pc); |
| IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1); |
| IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); |
| IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); |
| IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); |
| IWL_ERR(mvm, "0x%08X | data1\n", table.data1); |
| IWL_ERR(mvm, "0x%08X | data2\n", table.data2); |
| IWL_ERR(mvm, "0x%08X | data3\n", table.data3); |
| IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); |
| IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); |
| IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); |
| IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); |
| IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); |
| IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3); |
| IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver); |
| IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); |
| IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); |
| IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); |
| IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); |
| IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); |
| IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); |
| IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); |
| IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); |
| IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref); |
| IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); |
| IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); |
| IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); |
| IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); |
| IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); |
| IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); |
| IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); |
| IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); |
| } |
| |
| void iwl_mvm_dump_sram(struct iwl_mvm *mvm) |
| { |
| const struct fw_img *img; |
| int ofs, len = 0; |
| u8 *buf; |
| |
| if (!mvm->ucode_loaded) |
| return; |
| |
| img = &mvm->fw->img[mvm->cur_ucode]; |
| ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; |
| len = img->sec[IWL_UCODE_SECTION_DATA].len; |
| |
| buf = kzalloc(len, GFP_ATOMIC); |
| if (!buf) |
| return; |
| |
| iwl_trans_read_mem_bytes(mvm->trans, ofs, buf, len); |
| iwl_print_hex_error(mvm->trans, buf, len); |
| |
| kfree(buf); |
| } |
| |
| /** |
| * iwl_mvm_send_lq_cmd() - Send link quality command |
| * @init: This command is sent as part of station initialization right |
| * after station has been added. |
| * |
| * The link quality command is sent as the last step of station creation. |
| * This is the special case in which init is set and we call a callback in |
| * this case to clear the state indicating that station creation is in |
| * progress. |
| */ |
| int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, |
| u8 flags, bool init) |
| { |
| struct iwl_host_cmd cmd = { |
| .id = LQ_CMD, |
| .len = { sizeof(struct iwl_lq_cmd), }, |
| .flags = flags, |
| .data = { lq, }, |
| }; |
| |
| if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) |
| return -EINVAL; |
| |
| if (WARN_ON(init && (cmd.flags & CMD_ASYNC))) |
| return -EINVAL; |
| |
| return iwl_mvm_send_cmd(mvm, &cmd); |
| } |
| |
| /** |
| * iwl_mvm_update_smps - Get a requst to change the SMPS mode |
| * @req_type: The part of the driver who call for a change. |
| * @smps_requests: The request to change the SMPS mode. |
| * |
| * Get a requst to change the SMPS mode, |
| * and change it according to all other requests in the driver. |
| */ |
| void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| enum iwl_mvm_smps_type_request req_type, |
| enum ieee80211_smps_mode smps_request) |
| { |
| struct iwl_mvm_vif *mvmvif; |
| enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; |
| int i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| mvmvif->smps_requests[req_type] = smps_request; |
| for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { |
| if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { |
| smps_mode = IEEE80211_SMPS_STATIC; |
| break; |
| } |
| if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| } |
| |
| ieee80211_request_smps(vif, smps_mode); |
| } |