| /****************************************************************************** |
| * |
| * 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 - 2014 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 - 2014 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-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" |
| |
| /* private includes */ |
| #include "iwl-fw-file.h" |
| |
| /****************************************************************************** |
| * |
| * module boiler plate |
| * |
| ******************************************************************************/ |
| |
| /* |
| * module name, copyright, version, etc. |
| */ |
| #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| #define VD "d" |
| #else |
| #define VD |
| #endif |
| |
| #define DRV_VERSION IWLWIFI_VERSION VD |
| |
| MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| MODULE_VERSION(DRV_VERSION); |
| 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 proccess. |
| * 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; |
| 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), "%s%s.ucode", |
| name_pre, tag); |
| |
| IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", |
| (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
| ? "EXPERIMENTAL " : "", |
| drv->firmware_name); |
| |
| return request_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; |
| }; |
| |
| /* |
| * 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; |
| } |
| |
| /* |
| * 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); |
| |
| if (api_index >= IWL_API_ARRAY_SIZE) { |
| IWL_ERR(drv, "api_index larger than supported by driver\n"); |
| return -EINVAL; |
| } |
| |
| capa->api[api_index] = le32_to_cpu(ucode_api->api_flags); |
| |
| 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); |
| |
| if (api_index >= IWL_CAPABILITIES_ARRAY_SIZE) { |
| IWL_ERR(drv, "api_index larger than supported by driver\n"); |
| return -EINVAL; |
| } |
| |
| capa->capa[api_index] = le32_to_cpu(ucode_capa->api_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; |
| enum iwl_ucode_tlv_type tlv_type; |
| const u8 *tlv_data; |
| char buildstr[25]; |
| u32 build; |
| int num_of_cpus; |
| |
| 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; |
| drv->fw.img[IWL_UCODE_REGULAR].is_secure = 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; |
| drv->fw.img[IWL_UCODE_INIT].is_secure = 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; |
| drv->fw.img[IWL_UCODE_WOWLAN].is_secure = 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; |
| default: |
| IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); |
| break; |
| } |
| } |
| |
| 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; |
| } |
| |
| 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; |
| 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; |
| |
| memset(&pieces, 0, sizeof(pieces)); |
| |
| 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; |
| |
| 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; |
| |
| /* 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 |
| } |
| return; |
| |
| try_again: |
| /* try next, if any */ |
| release_firmware(ucode_raw); |
| if (iwl_request_firmware(drv, false)) |
| goto out_unbind; |
| return; |
| |
| out_free_fw: |
| IWL_ERR(drv, "failed to allocate pci memory\n"); |
| iwl_dealloc_ucode(drv); |
| release_firmware(ucode_raw); |
| out_unbind: |
| 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, |
| .wd_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 ", " DRV_VERSION "\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(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO); |
| MODULE_PARM_DESC(wd_disable, |
| "Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1)"); |
| |
| module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); |
| MODULE_PARM_DESC(nvm_file, "NVM file name"); |
| |
| module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, |
| bool, S_IRUGO); |
| #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)"); |