diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-drv.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-drv.c | 1706 |
1 files changed, 0 insertions, 1706 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c deleted file mode 100644 index 1db13535a..000000000 --- a/drivers/net/wireless/iwlwifi/iwl-drv.c +++ /dev/null @@ -1,1706 +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) 2007 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH - * - * 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) 2005 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH - * 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 <linux/completion.h> -#include <linux/dma-mapping.h> -#include <linux/firmware.h> -#include <linux/module.h> -#include <linux/vmalloc.h> - -#include "iwl-drv.h" -#include "iwl-csr.h" -#include "iwl-debug.h" -#include "iwl-trans.h" -#include "iwl-op-mode.h" -#include "iwl-agn-hw.h" -#include "iwl-fw.h" -#include "iwl-config.h" -#include "iwl-modparams.h" - -/****************************************************************************** - * - * module boiler plate - * - ******************************************************************************/ - -#define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); -MODULE_LICENSE("GPL"); - -#ifdef CONFIG_IWLWIFI_DEBUGFS -static struct dentry *iwl_dbgfs_root; -#endif - -/** - * struct iwl_drv - drv common data - * @list: list of drv structures using this opmode - * @fw: the iwl_fw structure - * @op_mode: the running op_mode - * @trans: transport layer - * @dev: for debug prints only - * @cfg: configuration struct - * @fw_index: firmware revision to try loading - * @firmware_name: composite filename of ucode file to load - * @request_firmware_complete: the firmware has been obtained from user space - */ -struct iwl_drv { - struct list_head list; - struct iwl_fw fw; - - struct iwl_op_mode *op_mode; - struct iwl_trans *trans; - struct device *dev; - const struct iwl_cfg *cfg; - - int fw_index; /* firmware we're trying to load */ - char firmware_name[32]; /* name of firmware file to load */ - - struct completion request_firmware_complete; - -#ifdef CONFIG_IWLWIFI_DEBUGFS - struct dentry *dbgfs_drv; - struct dentry *dbgfs_trans; - struct dentry *dbgfs_op_mode; -#endif -}; - -enum { - DVM_OP_MODE = 0, - MVM_OP_MODE = 1, -}; - -/* Protects the table contents, i.e. the ops pointer & drv list */ -static struct mutex iwlwifi_opmode_table_mtx; -static struct iwlwifi_opmode_table { - const char *name; /* name: iwldvm, iwlmvm, etc */ - const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ - struct list_head drv; /* list of devices using this op_mode */ -} iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ - [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, - [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, -}; - -#define IWL_DEFAULT_SCAN_CHANNELS 40 - -/* - * struct fw_sec: Just for the image parsing process. - * For the fw storage we are using struct fw_desc. - */ -struct fw_sec { - const void *data; /* the sec data */ - size_t size; /* section size */ - u32 offset; /* offset of writing in the device */ -}; - -static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) -{ - vfree(desc->data); - desc->data = NULL; - desc->len = 0; -} - -static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) -{ - int i; - for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) - iwl_free_fw_desc(drv, &img->sec[i]); -} - -static void iwl_dealloc_ucode(struct iwl_drv *drv) -{ - int i; - - kfree(drv->fw.dbg_dest_tlv); - for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) - kfree(drv->fw.dbg_conf_tlv[i]); - for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) - kfree(drv->fw.dbg_trigger_tlv[i]); - - for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) - iwl_free_fw_img(drv, drv->fw.img + i); -} - -static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, - struct fw_sec *sec) -{ - void *data; - - desc->data = NULL; - - if (!sec || !sec->size) - return -EINVAL; - - data = vmalloc(sec->size); - if (!data) - return -ENOMEM; - - desc->len = sec->size; - desc->offset = sec->offset; - memcpy(data, sec->data, desc->len); - desc->data = data; - - return 0; -} - -static void iwl_req_fw_callback(const struct firmware *ucode_raw, - void *context); - -#define UCODE_EXPERIMENTAL_INDEX 100 -#define UCODE_EXPERIMENTAL_TAG "exp" - -static int iwl_request_firmware(struct iwl_drv *drv, bool first) -{ - const char *name_pre = drv->cfg->fw_name_pre; - char tag[8]; - - if (first) { -#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE - drv->fw_index = UCODE_EXPERIMENTAL_INDEX; - strcpy(tag, UCODE_EXPERIMENTAL_TAG); - } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { -#endif - drv->fw_index = drv->cfg->ucode_api_max; - sprintf(tag, "%d", drv->fw_index); - } else { - drv->fw_index--; - sprintf(tag, "%d", drv->fw_index); - } - - if (drv->fw_index < drv->cfg->ucode_api_min) { - IWL_ERR(drv, "no suitable firmware found!\n"); - return -ENOENT; - } - - snprintf(drv->firmware_name, sizeof(drv->firmware_name), "/*(DEBLOBBED)*/", - name_pre, tag); - - /* - * Starting 8000B - FW name format has changed. This overwrites the - * previous name and uses the new format. - */ - if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) { - char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev); - - snprintf(drv->firmware_name, sizeof(drv->firmware_name), - "/*(DEBLOBBED)*/", name_pre, rev_step, tag); - } - - IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", - (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) - ? "EXPERIMENTAL " : "", - drv->firmware_name); - - return reject_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, - drv->trans->dev, - GFP_KERNEL, drv, iwl_req_fw_callback); -} - -struct fw_img_parsing { - struct fw_sec sec[IWL_UCODE_SECTION_MAX]; - int sec_counter; -}; - -/* - * struct fw_sec_parsing: to extract fw section and it's offset from tlv - */ -struct fw_sec_parsing { - __le32 offset; - const u8 data[]; -} __packed; - -/** - * struct iwl_tlv_calib_data - parse the default calib data from TLV - * - * @ucode_type: the uCode to which the following default calib relates. - * @calib: default calibrations. - */ -struct iwl_tlv_calib_data { - __le32 ucode_type; - struct iwl_tlv_calib_ctrl calib; -} __packed; - -struct iwl_firmware_pieces { - struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; - - u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; - u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; - - /* FW debug data parsed for driver usage */ - struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; - struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; - size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; - struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; - size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; -}; - -/* - * These functions are just to extract uCode section data from the pieces - * structure. - */ -static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type, - int sec) -{ - return &pieces->img[type].sec[sec]; -} - -static void set_sec_data(struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type, - int sec, - const void *data) -{ - pieces->img[type].sec[sec].data = data; -} - -static void set_sec_size(struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type, - int sec, - size_t size) -{ - pieces->img[type].sec[sec].size = size; -} - -static size_t get_sec_size(struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type, - int sec) -{ - return pieces->img[type].sec[sec].size; -} - -static void set_sec_offset(struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type, - int sec, - u32 offset) -{ - pieces->img[type].sec[sec].offset = offset; -} - -static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) -{ - int i, j; - struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; - struct iwl_fw_cipher_scheme *fwcs; - struct ieee80211_cipher_scheme *cs; - u32 cipher; - - if (len < sizeof(*l) || - len < sizeof(l->size) + l->size * sizeof(l->cs[0])) - return -EINVAL; - - for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { - fwcs = &l->cs[j]; - cipher = le32_to_cpu(fwcs->cipher); - - /* we skip schemes with zero cipher suite selector */ - if (!cipher) - continue; - - cs = &fw->cs[j++]; - cs->cipher = cipher; - cs->iftype = BIT(NL80211_IFTYPE_STATION); - cs->hdr_len = fwcs->hdr_len; - cs->pn_len = fwcs->pn_len; - cs->pn_off = fwcs->pn_off; - cs->key_idx_off = fwcs->key_idx_off; - cs->key_idx_mask = fwcs->key_idx_mask; - cs->key_idx_shift = fwcs->key_idx_shift; - cs->mic_len = fwcs->mic_len; - } - - return 0; -} - -static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, - const u32 len) -{ - struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; - struct iwl_gscan_capabilities *capa = &fw->gscan_capa; - - if (len < sizeof(*fw_capa)) - return -EINVAL; - - capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); - capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); - capa->max_ap_cache_per_scan = - le32_to_cpu(fw_capa->max_ap_cache_per_scan); - capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); - capa->max_scan_reporting_threshold = - le32_to_cpu(fw_capa->max_scan_reporting_threshold); - capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); - capa->max_significant_change_aps = - le32_to_cpu(fw_capa->max_significant_change_aps); - capa->max_bssid_history_entries = - le32_to_cpu(fw_capa->max_bssid_history_entries); - return 0; -} - -/* - * Gets uCode section from tlv. - */ -static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, - const void *data, enum iwl_ucode_type type, - int size) -{ - struct fw_img_parsing *img; - struct fw_sec *sec; - struct fw_sec_parsing *sec_parse; - - if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) - return -1; - - sec_parse = (struct fw_sec_parsing *)data; - - img = &pieces->img[type]; - sec = &img->sec[img->sec_counter]; - - sec->offset = le32_to_cpu(sec_parse->offset); - sec->data = sec_parse->data; - sec->size = size - sizeof(sec_parse->offset); - - ++img->sec_counter; - - return 0; -} - -static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) -{ - struct iwl_tlv_calib_data *def_calib = - (struct iwl_tlv_calib_data *)data; - u32 ucode_type = le32_to_cpu(def_calib->ucode_type); - if (ucode_type >= IWL_UCODE_TYPE_MAX) { - IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", - ucode_type); - return -EINVAL; - } - drv->fw.default_calib[ucode_type].flow_trigger = - def_calib->calib.flow_trigger; - drv->fw.default_calib[ucode_type].event_trigger = - def_calib->calib.event_trigger; - - return 0; -} - -static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, - struct iwl_ucode_capabilities *capa) -{ - const struct iwl_ucode_api *ucode_api = (void *)data; - u32 api_index = le32_to_cpu(ucode_api->api_index); - u32 api_flags = le32_to_cpu(ucode_api->api_flags); - int i; - - if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { - IWL_ERR(drv, "api_index larger than supported by driver\n"); - /* don't return an error so we can load FW that has more bits */ - return 0; - } - - for (i = 0; i < 32; i++) { - if (api_flags & BIT(i)) - __set_bit(i + 32 * api_index, capa->_api); - } - - return 0; -} - -static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, - struct iwl_ucode_capabilities *capa) -{ - const struct iwl_ucode_capa *ucode_capa = (void *)data; - u32 api_index = le32_to_cpu(ucode_capa->api_index); - u32 api_flags = le32_to_cpu(ucode_capa->api_capa); - int i; - - if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { - IWL_ERR(drv, "api_index larger than supported by driver\n"); - /* don't return an error so we can load FW that has more bits */ - return 0; - } - - for (i = 0; i < 32; i++) { - if (api_flags & BIT(i)) - __set_bit(i + 32 * api_index, capa->_capa); - } - - return 0; -} - -static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, - const struct firmware *ucode_raw, - struct iwl_firmware_pieces *pieces) -{ - struct iwl_ucode_header *ucode = (void *)ucode_raw->data; - u32 api_ver, hdr_size, build; - char buildstr[25]; - const u8 *src; - - drv->fw.ucode_ver = le32_to_cpu(ucode->ver); - api_ver = IWL_UCODE_API(drv->fw.ucode_ver); - - switch (api_ver) { - default: - hdr_size = 28; - if (ucode_raw->size < hdr_size) { - IWL_ERR(drv, "File size too small!\n"); - return -EINVAL; - } - build = le32_to_cpu(ucode->u.v2.build); - set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, - le32_to_cpu(ucode->u.v2.inst_size)); - set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, - le32_to_cpu(ucode->u.v2.data_size)); - set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, - le32_to_cpu(ucode->u.v2.init_size)); - set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, - le32_to_cpu(ucode->u.v2.init_data_size)); - src = ucode->u.v2.data; - break; - case 0: - case 1: - case 2: - hdr_size = 24; - if (ucode_raw->size < hdr_size) { - IWL_ERR(drv, "File size too small!\n"); - return -EINVAL; - } - build = 0; - set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, - le32_to_cpu(ucode->u.v1.inst_size)); - set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, - le32_to_cpu(ucode->u.v1.data_size)); - set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, - le32_to_cpu(ucode->u.v1.init_size)); - set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, - le32_to_cpu(ucode->u.v1.init_data_size)); - src = ucode->u.v1.data; - break; - } - - if (build) - sprintf(buildstr, " build %u%s", build, - (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) - ? " (EXP)" : ""); - else - buildstr[0] = '\0'; - - snprintf(drv->fw.fw_version, - sizeof(drv->fw.fw_version), - "%u.%u.%u.%u%s", - IWL_UCODE_MAJOR(drv->fw.ucode_ver), - IWL_UCODE_MINOR(drv->fw.ucode_ver), - IWL_UCODE_API(drv->fw.ucode_ver), - IWL_UCODE_SERIAL(drv->fw.ucode_ver), - buildstr); - - /* Verify size of file vs. image size info in file's header */ - - if (ucode_raw->size != hdr_size + - get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + - get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + - get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + - get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { - - IWL_ERR(drv, - "uCode file size %d does not match expected size\n", - (int)ucode_raw->size); - return -EINVAL; - } - - - set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); - src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); - set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, - IWLAGN_RTC_INST_LOWER_BOUND); - set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); - src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); - set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, - IWLAGN_RTC_DATA_LOWER_BOUND); - set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); - src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); - set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, - IWLAGN_RTC_INST_LOWER_BOUND); - set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); - src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); - set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, - IWLAGN_RTC_DATA_LOWER_BOUND); - return 0; -} - -static int iwl_parse_tlv_firmware(struct iwl_drv *drv, - const struct firmware *ucode_raw, - struct iwl_firmware_pieces *pieces, - struct iwl_ucode_capabilities *capa) -{ - struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; - struct iwl_ucode_tlv *tlv; - size_t len = ucode_raw->size; - const u8 *data; - u32 tlv_len; - u32 usniffer_img; - enum iwl_ucode_tlv_type tlv_type; - const u8 *tlv_data; - char buildstr[25]; - u32 build, paging_mem_size; - int num_of_cpus; - bool usniffer_images = false; - bool usniffer_req = false; - bool gscan_capa = false; - - if (len < sizeof(*ucode)) { - IWL_ERR(drv, "uCode has invalid length: %zd\n", len); - return -EINVAL; - } - - if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { - IWL_ERR(drv, "invalid uCode magic: 0X%x\n", - le32_to_cpu(ucode->magic)); - return -EINVAL; - } - - drv->fw.ucode_ver = le32_to_cpu(ucode->ver); - memcpy(drv->fw.human_readable, ucode->human_readable, - sizeof(drv->fw.human_readable)); - build = le32_to_cpu(ucode->build); - - if (build) - sprintf(buildstr, " build %u%s", build, - (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) - ? " (EXP)" : ""); - else - buildstr[0] = '\0'; - - snprintf(drv->fw.fw_version, - sizeof(drv->fw.fw_version), - "%u.%u.%u.%u%s", - IWL_UCODE_MAJOR(drv->fw.ucode_ver), - IWL_UCODE_MINOR(drv->fw.ucode_ver), - IWL_UCODE_API(drv->fw.ucode_ver), - IWL_UCODE_SERIAL(drv->fw.ucode_ver), - buildstr); - - data = ucode->data; - - len -= sizeof(*ucode); - - while (len >= sizeof(*tlv)) { - len -= sizeof(*tlv); - tlv = (void *)data; - - tlv_len = le32_to_cpu(tlv->length); - tlv_type = le32_to_cpu(tlv->type); - tlv_data = tlv->data; - - if (len < tlv_len) { - IWL_ERR(drv, "invalid TLV len: %zd/%u\n", - len, tlv_len); - return -EINVAL; - } - len -= ALIGN(tlv_len, 4); - data += sizeof(*tlv) + ALIGN(tlv_len, 4); - - switch (tlv_type) { - case IWL_UCODE_TLV_INST: - set_sec_data(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_INST, tlv_data); - set_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_INST, tlv_len); - set_sec_offset(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_INST, - IWLAGN_RTC_INST_LOWER_BOUND); - break; - case IWL_UCODE_TLV_DATA: - set_sec_data(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA, tlv_data); - set_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA, tlv_len); - set_sec_offset(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA, - IWLAGN_RTC_DATA_LOWER_BOUND); - break; - case IWL_UCODE_TLV_INIT: - set_sec_data(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_INST, tlv_data); - set_sec_size(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_INST, tlv_len); - set_sec_offset(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_INST, - IWLAGN_RTC_INST_LOWER_BOUND); - break; - case IWL_UCODE_TLV_INIT_DATA: - set_sec_data(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_DATA, tlv_data); - set_sec_size(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_DATA, tlv_len); - set_sec_offset(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_DATA, - IWLAGN_RTC_DATA_LOWER_BOUND); - break; - case IWL_UCODE_TLV_BOOT: - IWL_ERR(drv, "Found unexpected BOOT ucode\n"); - break; - case IWL_UCODE_TLV_PROBE_MAX_LEN: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - capa->max_probe_length = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_PAN: - if (tlv_len) - goto invalid_tlv_len; - capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; - break; - case IWL_UCODE_TLV_FLAGS: - /* must be at least one u32 */ - if (tlv_len < sizeof(u32)) - goto invalid_tlv_len; - /* and a proper number of u32s */ - if (tlv_len % sizeof(u32)) - goto invalid_tlv_len; - /* - * This driver only reads the first u32 as - * right now no more features are defined, - * if that changes then either the driver - * will not work with the new firmware, or - * it'll not take advantage of new features. - */ - capa->flags = le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_API_CHANGES_SET: - if (tlv_len != sizeof(struct iwl_ucode_api)) - goto invalid_tlv_len; - if (iwl_set_ucode_api_flags(drv, tlv_data, capa)) - goto tlv_error; - break; - case IWL_UCODE_TLV_ENABLED_CAPABILITIES: - if (tlv_len != sizeof(struct iwl_ucode_capa)) - goto invalid_tlv_len; - if (iwl_set_ucode_capabilities(drv, tlv_data, capa)) - goto tlv_error; - break; - case IWL_UCODE_TLV_INIT_EVTLOG_PTR: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->init_evtlog_ptr = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->init_evtlog_size = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_INIT_ERRLOG_PTR: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->init_errlog_ptr = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->inst_evtlog_ptr = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->inst_evtlog_size = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - pieces->inst_errlog_ptr = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_ENHANCE_SENS_TBL: - if (tlv_len) - goto invalid_tlv_len; - drv->fw.enhance_sensitivity_table = true; - break; - case IWL_UCODE_TLV_WOWLAN_INST: - set_sec_data(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_INST, tlv_data); - set_sec_size(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_INST, tlv_len); - set_sec_offset(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_INST, - IWLAGN_RTC_INST_LOWER_BOUND); - break; - case IWL_UCODE_TLV_WOWLAN_DATA: - set_sec_data(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_DATA, tlv_data); - set_sec_size(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_DATA, tlv_len); - set_sec_offset(pieces, IWL_UCODE_WOWLAN, - IWL_UCODE_SECTION_DATA, - IWLAGN_RTC_DATA_LOWER_BOUND); - break; - case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - capa->standard_phy_calibration_size = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_SEC_RT: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_SEC_INIT: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_SEC_WOWLAN: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_DEF_CALIB: - if (tlv_len != sizeof(struct iwl_tlv_calib_data)) - goto invalid_tlv_len; - if (iwl_set_default_calib(drv, tlv_data)) - goto tlv_error; - break; - case IWL_UCODE_TLV_PHY_SKU: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); - drv->fw.valid_tx_ant = (drv->fw.phy_config & - FW_PHY_CFG_TX_CHAIN) >> - FW_PHY_CFG_TX_CHAIN_POS; - drv->fw.valid_rx_ant = (drv->fw.phy_config & - FW_PHY_CFG_RX_CHAIN) >> - FW_PHY_CFG_RX_CHAIN_POS; - break; - case IWL_UCODE_TLV_SECURE_SEC_RT: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_SECURE_SEC_INIT: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: - iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, - tlv_len); - drv->fw.mvm_fw = true; - break; - case IWL_UCODE_TLV_NUM_OF_CPU: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - num_of_cpus = - le32_to_cpup((__le32 *)tlv_data); - - if (num_of_cpus == 2) { - drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = - true; - drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = - true; - drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = - true; - } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { - IWL_ERR(drv, "Driver support upto 2 CPUs\n"); - return -EINVAL; - } - break; - case IWL_UCODE_TLV_CSCHEME: - if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) - goto invalid_tlv_len; - break; - case IWL_UCODE_TLV_N_SCAN_CHANNELS: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - capa->n_scan_channels = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_FW_VERSION: { - __le32 *ptr = (void *)tlv_data; - u32 major, minor; - u8 local_comp; - - if (tlv_len != sizeof(u32) * 3) - goto invalid_tlv_len; - - major = le32_to_cpup(ptr++); - minor = le32_to_cpup(ptr++); - local_comp = le32_to_cpup(ptr); - - snprintf(drv->fw.fw_version, - sizeof(drv->fw.fw_version), "%u.%u.%u", - major, minor, local_comp); - break; - } - case IWL_UCODE_TLV_FW_DBG_DEST: { - struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data; - - if (pieces->dbg_dest_tlv) { - IWL_ERR(drv, - "dbg destination ignored, already exists\n"); - break; - } - - pieces->dbg_dest_tlv = dest; - IWL_INFO(drv, "Found debug destination: %s\n", - get_fw_dbg_mode_string(dest->monitor_mode)); - - drv->fw.dbg_dest_reg_num = - tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv, - reg_ops); - drv->fw.dbg_dest_reg_num /= - sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]); - - break; - } - case IWL_UCODE_TLV_FW_DBG_CONF: { - struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; - - if (!pieces->dbg_dest_tlv) { - IWL_ERR(drv, - "Ignore dbg config %d - no destination configured\n", - conf->id); - break; - } - - if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) { - IWL_ERR(drv, - "Skip unknown configuration: %d\n", - conf->id); - break; - } - - if (pieces->dbg_conf_tlv[conf->id]) { - IWL_ERR(drv, - "Ignore duplicate dbg config %d\n", - conf->id); - break; - } - - if (conf->usniffer) - usniffer_req = true; - - IWL_INFO(drv, "Found debug configuration: %d\n", - conf->id); - - pieces->dbg_conf_tlv[conf->id] = conf; - pieces->dbg_conf_tlv_len[conf->id] = tlv_len; - break; - } - case IWL_UCODE_TLV_FW_DBG_TRIGGER: { - struct iwl_fw_dbg_trigger_tlv *trigger = - (void *)tlv_data; - u32 trigger_id = le32_to_cpu(trigger->id); - - if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) { - IWL_ERR(drv, - "Skip unknown trigger: %u\n", - trigger->id); - break; - } - - if (pieces->dbg_trigger_tlv[trigger_id]) { - IWL_ERR(drv, - "Ignore duplicate dbg trigger %u\n", - trigger->id); - break; - } - - IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); - - pieces->dbg_trigger_tlv[trigger_id] = trigger; - pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; - break; - } - case IWL_UCODE_TLV_SEC_RT_USNIFFER: - usniffer_images = true; - iwl_store_ucode_sec(pieces, tlv_data, - IWL_UCODE_REGULAR_USNIFFER, - tlv_len); - break; - case IWL_UCODE_TLV_PAGING: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - paging_mem_size = le32_to_cpup((__le32 *)tlv_data); - - IWL_DEBUG_FW(drv, - "Paging: paging enabled (size = %u bytes)\n", - paging_mem_size); - - if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { - IWL_ERR(drv, - "Paging: driver supports up to %lu bytes for paging image\n", - MAX_PAGING_IMAGE_SIZE); - return -EINVAL; - } - - if (paging_mem_size & (FW_PAGING_SIZE - 1)) { - IWL_ERR(drv, - "Paging: image isn't multiple %lu\n", - FW_PAGING_SIZE); - return -EINVAL; - } - - drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = - paging_mem_size; - usniffer_img = IWL_UCODE_REGULAR_USNIFFER; - drv->fw.img[usniffer_img].paging_mem_size = - paging_mem_size; - break; - case IWL_UCODE_TLV_SDIO_ADMA_ADDR: - if (tlv_len != sizeof(u32)) - goto invalid_tlv_len; - drv->fw.sdio_adma_addr = - le32_to_cpup((__le32 *)tlv_data); - break; - case IWL_UCODE_TLV_FW_GSCAN_CAPA: - if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len)) - goto invalid_tlv_len; - gscan_capa = true; - break; - default: - IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); - break; - } - } - - if (usniffer_req && !usniffer_images) { - IWL_ERR(drv, - "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); - return -EINVAL; - } - - if (len) { - IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); - iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); - return -EINVAL; - } - - /* - * If ucode advertises that it supports GSCAN but GSCAN - * capabilities TLV is not present, warn and continue without GSCAN. - */ - if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && - WARN(!gscan_capa, - "GSCAN is supported but capabilities TLV is unavailable\n")) - __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, - capa->_capa); - - return 0; - - invalid_tlv_len: - IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); - tlv_error: - iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); - - return -EINVAL; -} - -static int iwl_alloc_ucode(struct iwl_drv *drv, - struct iwl_firmware_pieces *pieces, - enum iwl_ucode_type type) -{ - int i; - for (i = 0; - i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); - i++) - if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), - get_sec(pieces, type, i))) - return -ENOMEM; - return 0; -} - -static int validate_sec_sizes(struct iwl_drv *drv, - struct iwl_firmware_pieces *pieces, - const struct iwl_cfg *cfg) -{ - IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", - get_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_INST)); - IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", - get_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA)); - IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", - get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); - IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", - get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); - - /* Verify that uCode images will fit in card's SRAM. */ - if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > - cfg->max_inst_size) { - IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", - get_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_INST)); - return -1; - } - - if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > - cfg->max_data_size) { - IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", - get_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA)); - return -1; - } - - if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > - cfg->max_inst_size) { - IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", - get_sec_size(pieces, IWL_UCODE_INIT, - IWL_UCODE_SECTION_INST)); - return -1; - } - - if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > - cfg->max_data_size) { - IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", - get_sec_size(pieces, IWL_UCODE_REGULAR, - IWL_UCODE_SECTION_DATA)); - return -1; - } - return 0; -} - -static struct iwl_op_mode * -_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) -{ - const struct iwl_op_mode_ops *ops = op->ops; - struct dentry *dbgfs_dir = NULL; - struct iwl_op_mode *op_mode = NULL; - -#ifdef CONFIG_IWLWIFI_DEBUGFS - drv->dbgfs_op_mode = debugfs_create_dir(op->name, - drv->dbgfs_drv); - if (!drv->dbgfs_op_mode) { - IWL_ERR(drv, - "failed to create opmode debugfs directory\n"); - return op_mode; - } - dbgfs_dir = drv->dbgfs_op_mode; -#endif - - op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir); - -#ifdef CONFIG_IWLWIFI_DEBUGFS - if (!op_mode) { - debugfs_remove_recursive(drv->dbgfs_op_mode); - drv->dbgfs_op_mode = NULL; - } -#endif - - return op_mode; -} - -static void _iwl_op_mode_stop(struct iwl_drv *drv) -{ - /* op_mode can be NULL if its start failed */ - if (drv->op_mode) { - iwl_op_mode_stop(drv->op_mode); - drv->op_mode = NULL; - -#ifdef CONFIG_IWLWIFI_DEBUGFS - debugfs_remove_recursive(drv->dbgfs_op_mode); - drv->dbgfs_op_mode = NULL; -#endif - } -} - -/** - * iwl_req_fw_callback - callback when firmware was loaded - * - * If loaded successfully, copies the firmware into buffers - * for the card to fetch (via DMA). - */ -static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) -{ - struct iwl_drv *drv = context; - struct iwl_fw *fw = &drv->fw; - struct iwl_ucode_header *ucode; - struct iwlwifi_opmode_table *op; - int err; - struct iwl_firmware_pieces *pieces; - const unsigned int api_max = drv->cfg->ucode_api_max; - unsigned int api_ok = drv->cfg->ucode_api_ok; - const unsigned int api_min = drv->cfg->ucode_api_min; - size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; - u32 api_ver; - int i; - bool load_module = false; - - fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; - fw->ucode_capa.standard_phy_calibration_size = - IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; - fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; - - if (!api_ok) - api_ok = api_max; - - pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); - if (!pieces) - return; - - if (!ucode_raw) { - if (drv->fw_index <= api_ok) - IWL_ERR(drv, - "request for firmware file '%s' failed.\n", - drv->firmware_name); - goto try_again; - } - - IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", - drv->firmware_name, ucode_raw->size); - - /* Make sure that we got at least the API version number */ - if (ucode_raw->size < 4) { - IWL_ERR(drv, "File size way too small!\n"); - goto try_again; - } - - /* Data from ucode file: header followed by uCode images */ - ucode = (struct iwl_ucode_header *)ucode_raw->data; - - if (ucode->ver) - err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); - else - err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, - &fw->ucode_capa); - - if (err) - goto try_again; - - if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) - api_ver = drv->fw.ucode_ver; - else - api_ver = IWL_UCODE_API(drv->fw.ucode_ver); - - /* - * api_ver should match the api version forming part of the - * firmware filename ... but we don't check for that and only rely - * on the API version read from firmware header from here on forward - */ - /* no api version check required for experimental uCode */ - if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) { - if (api_ver < api_min || api_ver > api_max) { - IWL_ERR(drv, - "Driver unable to support your firmware API. " - "Driver supports v%u, firmware is v%u.\n", - api_max, api_ver); - goto try_again; - } - - if (api_ver < api_ok) { - if (api_ok != api_max) - IWL_ERR(drv, "Firmware has old API version, " - "expected v%u through v%u, got v%u.\n", - api_ok, api_max, api_ver); - else - IWL_ERR(drv, "Firmware has old API version, " - "expected v%u, got v%u.\n", - api_max, api_ver); - IWL_ERR(drv, "New firmware can be obtained from " - "http://www.intellinuxwireless.org/.\n"); - } - } - - /* - * In mvm uCode there is no difference between data and instructions - * sections. - */ - if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg)) - goto try_again; - - /* Allocate ucode buffers for card's bus-master loading ... */ - - /* Runtime instructions and 2 copies of data: - * 1) unmodified from disk - * 2) backup cache for save/restore during power-downs */ - for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) - if (iwl_alloc_ucode(drv, pieces, i)) - goto out_free_fw; - - if (pieces->dbg_dest_tlv) { - drv->fw.dbg_dest_tlv = - kmemdup(pieces->dbg_dest_tlv, - sizeof(*pieces->dbg_dest_tlv) + - sizeof(pieces->dbg_dest_tlv->reg_ops[0]) * - drv->fw.dbg_dest_reg_num, GFP_KERNEL); - - if (!drv->fw.dbg_dest_tlv) - goto out_free_fw; - } - - for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) { - if (pieces->dbg_conf_tlv[i]) { - drv->fw.dbg_conf_tlv_len[i] = - pieces->dbg_conf_tlv_len[i]; - drv->fw.dbg_conf_tlv[i] = - kmemdup(pieces->dbg_conf_tlv[i], - drv->fw.dbg_conf_tlv_len[i], - GFP_KERNEL); - if (!drv->fw.dbg_conf_tlv[i]) - goto out_free_fw; - } - } - - memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); - - trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = - sizeof(struct iwl_fw_dbg_trigger_missed_bcon); - trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; - trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = - sizeof(struct iwl_fw_dbg_trigger_cmd); - trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = - sizeof(struct iwl_fw_dbg_trigger_mlme); - trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = - sizeof(struct iwl_fw_dbg_trigger_stats); - trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = - sizeof(struct iwl_fw_dbg_trigger_low_rssi); - trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = - sizeof(struct iwl_fw_dbg_trigger_txq_timer); - trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = - sizeof(struct iwl_fw_dbg_trigger_time_event); - trigger_tlv_sz[FW_DBG_TRIGGER_BA] = - sizeof(struct iwl_fw_dbg_trigger_ba); - - for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) { - if (pieces->dbg_trigger_tlv[i]) { - /* - * If the trigger isn't long enough, WARN and exit. - * Someone is trying to debug something and he won't - * be able to catch the bug he is trying to chase. - * We'd better be noisy to be sure he knows what's - * going on. - */ - if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < - (trigger_tlv_sz[i] + - sizeof(struct iwl_fw_dbg_trigger_tlv)))) - goto out_free_fw; - drv->fw.dbg_trigger_tlv_len[i] = - pieces->dbg_trigger_tlv_len[i]; - drv->fw.dbg_trigger_tlv[i] = - kmemdup(pieces->dbg_trigger_tlv[i], - drv->fw.dbg_trigger_tlv_len[i], - GFP_KERNEL); - if (!drv->fw.dbg_trigger_tlv[i]) - goto out_free_fw; - } - } - - /* Now that we can no longer fail, copy information */ - - /* - * The (size - 16) / 12 formula is based on the information recorded - * for each event, which is of mode 1 (including timestamp) for all - * new microcodes that include this information. - */ - fw->init_evtlog_ptr = pieces->init_evtlog_ptr; - if (pieces->init_evtlog_size) - fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; - else - fw->init_evtlog_size = - drv->cfg->base_params->max_event_log_size; - fw->init_errlog_ptr = pieces->init_errlog_ptr; - fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; - if (pieces->inst_evtlog_size) - fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; - else - fw->inst_evtlog_size = - drv->cfg->base_params->max_event_log_size; - fw->inst_errlog_ptr = pieces->inst_errlog_ptr; - - /* - * figure out the offset of chain noise reset and gain commands - * base on the size of standard phy calibration commands table size - */ - if (fw->ucode_capa.standard_phy_calibration_size > - IWL_MAX_PHY_CALIBRATE_TBL_SIZE) - fw->ucode_capa.standard_phy_calibration_size = - IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; - - /* We have our copies now, allow OS release its copies */ - release_firmware(ucode_raw); - - mutex_lock(&iwlwifi_opmode_table_mtx); - if (fw->mvm_fw) - op = &iwlwifi_opmode_table[MVM_OP_MODE]; - else - op = &iwlwifi_opmode_table[DVM_OP_MODE]; - - IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", - drv->fw.fw_version, op->name); - - /* add this device to the list of devices using this op_mode */ - list_add_tail(&drv->list, &op->drv); - - if (op->ops) { - drv->op_mode = _iwl_op_mode_start(drv, op); - - if (!drv->op_mode) { - mutex_unlock(&iwlwifi_opmode_table_mtx); - goto out_unbind; - } - } else { - load_module = true; - } - mutex_unlock(&iwlwifi_opmode_table_mtx); - - /* - * Complete the firmware request last so that - * a driver unbind (stop) doesn't run while we - * are doing the start() above. - */ - complete(&drv->request_firmware_complete); - - /* - * Load the module last so we don't block anything - * else from proceeding if the module fails to load - * or hangs loading. - */ - if (load_module) { - err = request_module("%s", op->name); -#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR - if (err) - IWL_ERR(drv, - "failed to load module %s (error %d), is dynamic loading enabled?\n", - op->name, err); -#endif - } - kfree(pieces); - return; - - try_again: - /* try next, if any */ - release_firmware(ucode_raw); - if (iwl_request_firmware(drv, false)) - goto out_unbind; - kfree(pieces); - return; - - out_free_fw: - IWL_ERR(drv, "failed to allocate pci memory\n"); - iwl_dealloc_ucode(drv); - release_firmware(ucode_raw); - out_unbind: - kfree(pieces); - complete(&drv->request_firmware_complete); - device_release_driver(drv->trans->dev); -} - -struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, - const struct iwl_cfg *cfg) -{ - struct iwl_drv *drv; - int ret; - - drv = kzalloc(sizeof(*drv), GFP_KERNEL); - if (!drv) { - ret = -ENOMEM; - goto err; - } - - drv->trans = trans; - drv->dev = trans->dev; - drv->cfg = cfg; - - init_completion(&drv->request_firmware_complete); - INIT_LIST_HEAD(&drv->list); - -#ifdef CONFIG_IWLWIFI_DEBUGFS - /* Create the device debugfs entries. */ - drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), - iwl_dbgfs_root); - - if (!drv->dbgfs_drv) { - IWL_ERR(drv, "failed to create debugfs directory\n"); - ret = -ENOMEM; - goto err_free_drv; - } - - /* Create transport layer debugfs dir */ - drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); - - if (!drv->trans->dbgfs_dir) { - IWL_ERR(drv, "failed to create transport debugfs directory\n"); - ret = -ENOMEM; - goto err_free_dbgfs; - } -#endif - - ret = iwl_request_firmware(drv, true); - if (ret) { - IWL_ERR(trans, "Couldn't request the fw\n"); - goto err_fw; - } - - return drv; - -err_fw: -#ifdef CONFIG_IWLWIFI_DEBUGFS -err_free_dbgfs: - debugfs_remove_recursive(drv->dbgfs_drv); -err_free_drv: -#endif - kfree(drv); -err: - return ERR_PTR(ret); -} - -void iwl_drv_stop(struct iwl_drv *drv) -{ - wait_for_completion(&drv->request_firmware_complete); - - _iwl_op_mode_stop(drv); - - iwl_dealloc_ucode(drv); - - mutex_lock(&iwlwifi_opmode_table_mtx); - /* - * List is empty (this item wasn't added) - * when firmware loading failed -- in that - * case we can't remove it from any list. - */ - if (!list_empty(&drv->list)) - list_del(&drv->list); - mutex_unlock(&iwlwifi_opmode_table_mtx); - -#ifdef CONFIG_IWLWIFI_DEBUGFS - debugfs_remove_recursive(drv->dbgfs_drv); -#endif - - kfree(drv); -} - - -/* shared module parameters */ -struct iwl_mod_params iwlwifi_mod_params = { - .restart_fw = true, - .bt_coex_active = true, - .power_level = IWL_POWER_INDEX_1, - .d0i3_disable = true, -#ifndef CONFIG_IWLWIFI_UAPSD - .uapsd_disable = true, -#endif /* CONFIG_IWLWIFI_UAPSD */ - /* the rest are 0 by default */ -}; -IWL_EXPORT_SYMBOL(iwlwifi_mod_params); - -int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) -{ - int i; - struct iwl_drv *drv; - struct iwlwifi_opmode_table *op; - - mutex_lock(&iwlwifi_opmode_table_mtx); - for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { - op = &iwlwifi_opmode_table[i]; - if (strcmp(op->name, name)) - continue; - op->ops = ops; - /* TODO: need to handle exceptional case */ - list_for_each_entry(drv, &op->drv, list) - drv->op_mode = _iwl_op_mode_start(drv, op); - - mutex_unlock(&iwlwifi_opmode_table_mtx); - return 0; - } - mutex_unlock(&iwlwifi_opmode_table_mtx); - return -EIO; -} -IWL_EXPORT_SYMBOL(iwl_opmode_register); - -void iwl_opmode_deregister(const char *name) -{ - int i; - struct iwl_drv *drv; - - mutex_lock(&iwlwifi_opmode_table_mtx); - for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { - if (strcmp(iwlwifi_opmode_table[i].name, name)) - continue; - iwlwifi_opmode_table[i].ops = NULL; - - /* call the stop routine for all devices */ - list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) - _iwl_op_mode_stop(drv); - - mutex_unlock(&iwlwifi_opmode_table_mtx); - return; - } - mutex_unlock(&iwlwifi_opmode_table_mtx); -} -IWL_EXPORT_SYMBOL(iwl_opmode_deregister); - -static int __init iwl_drv_init(void) -{ - int i; - - mutex_init(&iwlwifi_opmode_table_mtx); - - for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) - INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); - - pr_info(DRV_DESCRIPTION "\n"); - pr_info(DRV_COPYRIGHT "\n"); - -#ifdef CONFIG_IWLWIFI_DEBUGFS - /* Create the root of iwlwifi debugfs subsystem. */ - iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); - - if (!iwl_dbgfs_root) - return -EFAULT; -#endif - - return iwl_pci_register_driver(); -} -module_init(iwl_drv_init); - -static void __exit iwl_drv_exit(void) -{ - iwl_pci_unregister_driver(); - -#ifdef CONFIG_IWLWIFI_DEBUGFS - debugfs_remove_recursive(iwl_dbgfs_root); -#endif -} -module_exit(iwl_drv_exit); - -#ifdef CONFIG_IWLWIFI_DEBUG -module_param_named(debug, iwlwifi_mod_params.debug_level, uint, - S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "debug output mask"); -#endif - -module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); -MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); -module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); -MODULE_PARM_DESC(11n_disable, - "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); -module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K, - int, S_IRUGO); -MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)"); -module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO); -MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); - -module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, - int, S_IRUGO); -MODULE_PARM_DESC(antenna_coupling, - "specify antenna coupling in dB (default: 0 dB)"); - -module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); -MODULE_PARM_DESC(nvm_file, "NVM file name"); - -module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, - bool, S_IRUGO); -MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); - -module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, - bool, S_IRUGO); -MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); - -module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, - bool, S_IRUGO | S_IWUSR); -#ifdef CONFIG_IWLWIFI_UAPSD -MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)"); -#else -MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)"); -#endif - -/* - * set bt_coex_active to true, uCode will do kill/defer - * every time the priority line is asserted (BT is sending signals on the - * priority line in the PCIx). - * set bt_coex_active to false, uCode will ignore the BT activity and - * perform the normal operation - * - * User might experience transmit issue on some platform due to WiFi/BT - * co-exist problem. The possible behaviors are: - * Able to scan and finding all the available AP - * Not able to associate with any AP - * On those platforms, WiFi communication can be restored by set - * "bt_coex_active" module parameter to "false" - * - * default: bt_coex_active = true (BT_COEX_ENABLE) - */ -module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, - bool, S_IRUGO); -MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); - -module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO); -MODULE_PARM_DESC(led_mode, "0=system default, " - "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); - -module_param_named(power_save, iwlwifi_mod_params.power_save, - bool, S_IRUGO); -MODULE_PARM_DESC(power_save, - "enable WiFi power management (default: disable)"); - -module_param_named(power_level, iwlwifi_mod_params.power_level, - int, S_IRUGO); -MODULE_PARM_DESC(power_level, - "default power save level (range from 1 - 5, default: 1)"); - -module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO); -MODULE_PARM_DESC(fw_monitor, - "firmware monitor - to debug FW (default: false - needs lots of memory)"); |