diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/utils.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/utils.c | 514 |
1 files changed, 0 insertions, 514 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c deleted file mode 100644 index 1e1332839e4a..000000000000 --- a/drivers/net/wireless/iwlwifi/mvm/utils.c +++ /dev/null @@ -1,514 +0,0 @@ -/****************************************************************************** - * - * 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); -} - -/** - * 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); -} |