cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/intel/iwlwifi/iwl-drv.c

/******************************************************************************
 *
 * 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
 * Copyright(c) 2016        Intel Deutschland 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 <linuxwifi@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
 * Copyright(c) 2016        Intel Deutschland 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
 * @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;

	
int fw_index;                   /* firmware we're trying to load */
	
char firmware_name[64];         /* 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,
	
MVM_OP_MODE,
};

/* 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; }

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static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) { int i; for (i = 0; i < img->num_sec; i++) iwl_free_fw_desc(drv, &img->sec[i]); kfree(img->sec); }

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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]); kfree(drv->fw.dbg_mem_tlv); for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) iwl_free_fw_img(drv, drv->fw.img + i); }

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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; }

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static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context);
static int iwl_request_firmware(struct iwl_drv *drv, bool first) { const char *name_pre = drv->trans->cfg->fw_name_pre; char tag[8]; if (first) { drv->fw_index = drv->trans->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->trans->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'\n", drv->firmware_name); return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, drv->trans->dev, GFP_KERNEL, drv, iwl_req_fw_callback); }

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struct fw_img_parsing { struct fw_sec *sec; 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]; struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; size_t n_dbg_mem_tlv; }; /* * 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]; }

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static void alloc_sec_data(struct iwl_firmware_pieces *pieces, enum iwl_ucode_type type, int sec) { struct fw_img_parsing *img = &pieces->img[type]; struct fw_sec *sec_memory; int size = sec + 1; size_t alloc_size = sizeof(*img->sec) * size; if (img->sec && img->sec_counter >= size) return; sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); if (!sec_memory) return; img->sec = sec_memory; img->sec_counter = size; }

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static void set_sec_data(struct iwl_firmware_pieces *pieces, enum iwl_ucode_type type, int sec, const void *data) { alloc_sec_data(pieces, type, sec); pieces->img[type].sec[sec].data = data; }

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static void set_sec_size(struct iwl_firmware_pieces *pieces, enum iwl_ucode_type type, int sec, size_t size) { alloc_sec_data(pieces, type, sec); pieces->img[type].sec[sec].size = size; }

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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; }

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static void set_sec_offset(struct iwl_firmware_pieces *pieces, enum iwl_ucode_type type, int sec, u32 offset) { alloc_sec_data(pieces, type, sec); pieces->img[type].sec[sec].offset = offset; }

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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; 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]; /* we skip schemes with zero cipher suite selector */ if (!fwcs->cipher) continue; fw->cs[j++] = *fwcs; } return 0; }

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static void 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; 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); capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids); capa->max_number_epno_networks = le32_to_cpu(fw_capa->max_number_epno_networks); capa->max_number_epno_networks_by_ssid = le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid); capa->max_number_of_white_listed_ssid = le32_to_cpu(fw_capa->max_number_of_white_listed_ssid); capa->max_number_of_black_listed_ssid = le32_to_cpu(fw_capa->max_number_of_black_listed_ssid); }

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/* * 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; size_t alloc_size; if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) return -1; sec_parse = (struct fw_sec_parsing *)data; img = &pieces->img[type]; alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); sec = krealloc(img->sec, alloc_size, GFP_KERNEL); if (!sec) return -ENOMEM; img->sec = sec; 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; }

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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; }

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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 flags index %d larger than supported by driver\n", api_index); /* 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; }

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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, "capa flags index %d larger than supported by driver\n", api_index); /* 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; }

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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", build); 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; }

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Total621100.00%4100.00%


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, bool *usniffer_images) { 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_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", build); 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.type = IWL_FW_MVM; break; case IWL_UCODE_TLV_SEC_INIT: iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, tlv_len); drv->fw.type = IWL_FW_MVM; break; case IWL_UCODE_TLV_SEC_WOWLAN: iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, tlv_len); drv->fw.type = IWL_FW_MVM; 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.type = IWL_FW_MVM; break; case IWL_UCODE_TLV_SECURE_SEC_INIT: iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, tlv_len); drv->fw.type = IWL_FW_MVM; break; case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, tlv_len); drv->fw.type = IWL_FW_MVM; 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: /* * Don't return an error in case of a shorter tlv_len * to enable loading of FW that has an old format * of GSCAN capabilities TLV. */ if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities)) break; iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len); gscan_capa = true; break; case IWL_UCODE_TLV_FW_MEM_SEG: { struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = (void *)tlv_data; u32 type; size_t size; struct iwl_fw_dbg_mem_seg_tlv *n; if (tlv_len != (sizeof(*dbg_mem))) goto invalid_tlv_len; type = le32_to_cpu(dbg_mem->data_type); IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", dbg_mem->data_type); switch (type & FW_DBG_MEM_TYPE_MASK) { case FW_DBG_MEM_TYPE_REGULAR: case FW_DBG_MEM_TYPE_PRPH: /* we know how to handle these */ break; default: IWL_ERR(drv, "Found debug memory segment with invalid type: 0x%x\n", type); return -EINVAL; } size = sizeof(*pieces->dbg_mem_tlv) * (pieces->n_dbg_mem_tlv + 1); n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); if (!n) return -ENOMEM; pieces->dbg_mem_tlv = n; pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem; pieces->n_dbg_mem_tlv++; break; } default: IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); break; } } if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 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, or if it has an old format, * warn and continue without GSCAN. */ if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && !gscan_capa) { IWL_DEBUG_INFO(drv, "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; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg90739.42%621.43%
Eran Harary32013.91%414.29%
David Spinadel31813.82%414.29%
Liad Kaufman24510.65%27.14%
Emmanuel Grumbach2169.39%414.29%
Matti Gottlieb1175.08%13.57%
Golan Ben-Ami853.69%310.71%
Avraham Stern532.30%13.57%
Max Stepanov210.91%13.57%
Ayala Beker190.83%27.14%
Total2301100.00%28100.00%


static int iwl_alloc_ucode(struct iwl_drv *drv, struct iwl_firmware_pieces *pieces, enum iwl_ucode_type type) { int i; struct fw_desc *sec; sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); if (!sec) return -ENOMEM; drv->fw.img[type].sec = sec; drv->fw.img[type].num_sec = pieces->img[type].sec_counter; for (i = 0; i < pieces->img[type].sec_counter; i++) if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) return -ENOMEM; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sara Sharon7553.19%125.00%
David Spinadel5438.30%125.00%
Johannes Berg128.51%250.00%
Total141100.00%4100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
David Spinadel14360.08%240.00%
Johannes Berg8736.55%240.00%
Alexey Dobriyan83.36%120.00%
Total238100.00%5100.00%


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->trans->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; }

Contributors

PersonTokensPropCommitsCommitProp
Meenakshi Venkataraman13798.56%150.00%
Luciano Coelho21.44%150.00%
Total139100.00%2100.00%


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 } }

Contributors

PersonTokensPropCommitsCommitProp
Meenakshi Venkataraman51100.00%1100.00%
Total51100.00%1100.00%

/** * 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->trans->cfg->ucode_api_max; const unsigned int api_min = drv->trans->cfg->ucode_api_min; size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; u32 api_ver; int i; bool load_module = false; bool usniffer_images = 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; pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); if (!pieces) return; if (!ucode_raw) 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, &usniffer_images); 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 */ 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; } /* * In mvm uCode there is no difference between data and instructions * sections. */ if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, drv->trans->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); trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = sizeof(struct iwl_fw_dbg_trigger_tdls); 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 */ drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv; pieces->dbg_mem_tlv = NULL; drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv; /* * 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->trans->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->trans->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); switch (fw->type) { case IWL_FW_DVM: op = &iwlwifi_opmode_table[DVM_OP_MODE]; break; default: WARN(1, "Invalid fw type %d\n", fw->type); case IWL_FW_MVM: op = &iwlwifi_opmode_table[MVM_OP_MODE]; break; } 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 } goto free; try_again: /* try next, if any */ release_firmware(ucode_raw); if (iwl_request_firmware(drv, false)) goto out_unbind; goto free; 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); free: for (i = 0; i < ARRAY_SIZE(pieces->img); i++) kfree(pieces->img[i].sec); kfree(pieces->dbg_mem_tlv); kfree(pieces); }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg37531.30%1335.14%
Emmanuel Grumbach25921.62%924.32%
David Spinadel23819.87%410.81%
Liad Kaufman17614.69%12.70%
Don Fry383.17%12.70%
Luciano Coelho373.09%38.11%
Golan Ben-Ami352.92%38.11%
Sara Sharon302.50%12.70%
Dan Carpenter80.67%12.70%
Meenakshi Venkataraman20.17%12.70%
Total1198100.00%37100.00%


struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) { 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; 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); }

Contributors

PersonTokensPropCommitsCommitProp
Meenakshi Venkataraman10345.78%19.09%
Emmanuel Grumbach8638.22%654.55%
Johannes Berg2410.67%327.27%
Luciano Coelho125.33%19.09%
Total225100.00%11100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg5267.53%562.50%
Meenakshi Venkataraman1316.88%112.50%
Emmanuel Grumbach1215.58%225.00%
Total77100.00%8100.00%

/* 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, .d0i3_entry_delay = 1000, .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, /* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Don Fry7966.95%133.33%
Meenakshi Venkataraman2117.80%133.33%
Johannes Berg1815.25%133.33%
Total118100.00%3100.00%

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); }

Contributors

PersonTokensPropCommitsCommitProp
Don Fry7479.57%133.33%
Johannes Berg1819.35%133.33%
Meenakshi Venkataraman11.08%133.33%
Total93100.00%3100.00%

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(); }

Contributors

PersonTokensPropCommitsCommitProp
Don Fry5564.71%133.33%
Meenakshi Venkataraman2428.24%133.33%
Johannes Berg67.06%133.33%
Total85100.00%3100.00%

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 }

Contributors

PersonTokensPropCommitsCommitProp
Don Fry1254.55%150.00%
Meenakshi Venkataraman1045.45%150.00%
Total22100.00%2100.00%

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, iwlwifi_mod_params.amsdu_size, int, S_IRUGO); MODULE_PARM_DESC(amsdu_size, "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (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, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); /* * 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)"); module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay, uint, S_IRUGO); MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)"); module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, S_IRUGO); MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");

Overall Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg269734.97%2829.17%
David Spinadel147019.06%66.25%
Emmanuel Grumbach6858.88%2627.08%
Liad Kaufman4926.38%44.17%
Eran Harary4706.09%55.21%
Meenakshi Venkataraman3935.10%11.04%
Don Fry3614.68%11.04%
Sara Sharon2933.80%33.12%
Avraham Stern1812.35%11.04%
Max Stepanov1552.01%11.04%
Golan Ben-Ami1421.84%44.17%
Matti Gottlieb1171.52%11.04%
Luciano Coelho831.08%55.21%
Ayala Beker760.99%22.08%
Eliad Peller240.31%11.04%
Arik Nemtsov200.26%11.04%
Andrei Otcheretianski190.25%11.04%
Matt Chen160.21%11.04%
Alexey Dobriyan80.10%11.04%
Dan Carpenter80.10%11.04%
Toralf Förster10.01%11.04%
Haim Dreyfuss10.01%11.04%
Total7712100.00%96100.00%
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