iwlwifi: move under intel vendor directory

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 1706 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
new file mode 100644
index 000000000000..463cadfbfccb
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -0,0 +1,1706 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#include <linux/completion.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+
+#include "iwl-drv.h"
+#include "iwl-csr.h"
+#include "iwl-debug.h"
+#include "iwl-trans.h"
+#include "iwl-op-mode.h"
+#include "iwl-agn-hw.h"
+#include "iwl-fw.h"
+#include "iwl-config.h"
+#include "iwl-modparams.h"
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+#define DRV_DESCRIPTION	"Intel(R) Wireless WiFi driver for Linux"
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+static struct dentry *iwl_dbgfs_root;
+#endif
+
+/**
+ * struct iwl_drv - drv common data
+ * @list: list of drv structures using this opmode
+ * @fw: the iwl_fw structure
+ * @op_mode: the running op_mode
+ * @trans: transport layer
+ * @dev: for debug prints only
+ * @cfg: configuration struct
+ * @fw_index: firmware revision to try loading
+ * @firmware_name: composite filename of ucode file to load
+ * @request_firmware_complete: the firmware has been obtained from user space
+ */
+struct iwl_drv {
+	struct list_head list;
+	struct iwl_fw fw;
+
+	struct iwl_op_mode *op_mode;
+	struct iwl_trans *trans;
+	struct device *dev;
+	const struct iwl_cfg *cfg;
+
+	int fw_index;                   /* firmware we're trying to load */
+	char firmware_name[32];         /* name of firmware file to load */
+
+	struct completion request_firmware_complete;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	struct dentry *dbgfs_drv;
+	struct dentry *dbgfs_trans;
+	struct dentry *dbgfs_op_mode;
+#endif
+};
+
+enum {
+	DVM_OP_MODE =	0,
+	MVM_OP_MODE =	1,
+};
+
+/* Protects the table contents, i.e. the ops pointer & drv list */
+static struct mutex iwlwifi_opmode_table_mtx;
+static struct iwlwifi_opmode_table {
+	const char *name;			/* name: iwldvm, iwlmvm, etc */
+	const struct iwl_op_mode_ops *ops;	/* pointer to op_mode ops */
+	struct list_head drv;		/* list of devices using this op_mode */
+} iwlwifi_opmode_table[] = {		/* ops set when driver is initialized */
+	[DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
+	[MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
+};
+
+#define IWL_DEFAULT_SCAN_CHANNELS 40
+
+/*
+ * struct fw_sec: Just for the image parsing process.
+ * For the fw storage we are using struct fw_desc.
+ */
+struct fw_sec {
+	const void *data;		/* the sec data */
+	size_t size;			/* section size */
+	u32 offset;			/* offset of writing in the device */
+};
+
+static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
+{
+	vfree(desc->data);
+	desc->data = NULL;
+	desc->len = 0;
+}
+
+static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
+{
+	int i;
+	for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
+		iwl_free_fw_desc(drv, &img->sec[i]);
+}
+
+static void iwl_dealloc_ucode(struct iwl_drv *drv)
+{
+	int i;
+
+	kfree(drv->fw.dbg_dest_tlv);
+	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
+		kfree(drv->fw.dbg_conf_tlv[i]);
+	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
+		kfree(drv->fw.dbg_trigger_tlv[i]);
+
+	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
+		iwl_free_fw_img(drv, drv->fw.img + i);
+}
+
+static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
+			     struct fw_sec *sec)
+{
+	void *data;
+
+	desc->data = NULL;
+
+	if (!sec || !sec->size)
+		return -EINVAL;
+
+	data = vmalloc(sec->size);
+	if (!data)
+		return -ENOMEM;
+
+	desc->len = sec->size;
+	desc->offset = sec->offset;
+	memcpy(data, sec->data, desc->len);
+	desc->data = data;
+
+	return 0;
+}
+
+static void iwl_req_fw_callback(const struct firmware *ucode_raw,
+				void *context);
+
+#define UCODE_EXPERIMENTAL_INDEX	100
+#define UCODE_EXPERIMENTAL_TAG		"exp"
+
+static int iwl_request_firmware(struct iwl_drv *drv, bool first)
+{
+	const char *name_pre = drv->cfg->fw_name_pre;
+	char tag[8];
+
+	if (first) {
+#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
+		drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
+		strcpy(tag, UCODE_EXPERIMENTAL_TAG);
+	} else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
+#endif
+		drv->fw_index = drv->cfg->ucode_api_max;
+		sprintf(tag, "%d", drv->fw_index);
+	} else {
+		drv->fw_index--;
+		sprintf(tag, "%d", drv->fw_index);
+	}
+
+	if (drv->fw_index < drv->cfg->ucode_api_min) {
+		IWL_ERR(drv, "no suitable firmware found!\n");
+		return -ENOENT;
+	}
+
+	snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
+		 name_pre, tag);
+
+	/*
+	 * Starting 8000B - FW name format has changed. This overwrites the
+	 * previous name and uses the new format.
+	 */
+	if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
+		char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
+
+		snprintf(drv->firmware_name, sizeof(drv->firmware_name),
+			 "%s%c-%s.ucode", name_pre, rev_step, tag);
+	}
+
+	IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
+		       (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
+				? "EXPERIMENTAL " : "",
+		       drv->firmware_name);
+
+	return 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;
+
+	/* FW debug data parsed for driver usage */
+	struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
+	struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
+	size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
+	struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
+	size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
+};
+
+/*
+ * These functions are just to extract uCode section data from the pieces
+ * structure.
+ */
+static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
+			      enum iwl_ucode_type type,
+			      int  sec)
+{
+	return &pieces->img[type].sec[sec];
+}
+
+static void set_sec_data(struct iwl_firmware_pieces *pieces,
+			 enum iwl_ucode_type type,
+			 int sec,
+			 const void *data)
+{
+	pieces->img[type].sec[sec].data = data;
+}
+
+static void set_sec_size(struct iwl_firmware_pieces *pieces,
+			 enum iwl_ucode_type type,
+			 int sec,
+			 size_t size)
+{
+	pieces->img[type].sec[sec].size = size;
+}
+
+static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
+			   enum iwl_ucode_type type,
+			   int sec)
+{
+	return pieces->img[type].sec[sec].size;
+}
+
+static void set_sec_offset(struct iwl_firmware_pieces *pieces,
+			   enum iwl_ucode_type type,
+			   int sec,
+			   u32 offset)
+{
+	pieces->img[type].sec[sec].offset = offset;
+}
+
+static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
+{
+	int i, j;
+	struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
+	struct iwl_fw_cipher_scheme *fwcs;
+	struct ieee80211_cipher_scheme *cs;
+	u32 cipher;
+
+	if (len < sizeof(*l) ||
+	    len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
+		return -EINVAL;
+
+	for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
+		fwcs = &l->cs[j];
+		cipher = le32_to_cpu(fwcs->cipher);
+
+		/* we skip schemes with zero cipher suite selector */
+		if (!cipher)
+			continue;
+
+		cs = &fw->cs[j++];
+		cs->cipher = cipher;
+		cs->iftype = BIT(NL80211_IFTYPE_STATION);
+		cs->hdr_len = fwcs->hdr_len;
+		cs->pn_len = fwcs->pn_len;
+		cs->pn_off = fwcs->pn_off;
+		cs->key_idx_off = fwcs->key_idx_off;
+		cs->key_idx_mask = fwcs->key_idx_mask;
+		cs->key_idx_shift = fwcs->key_idx_shift;
+		cs->mic_len = fwcs->mic_len;
+	}
+
+	return 0;
+}
+
+static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
+				const u32 len)
+{
+	struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
+	struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
+
+	if (len < sizeof(*fw_capa))
+		return -EINVAL;
+
+	capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
+	capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
+	capa->max_ap_cache_per_scan =
+		le32_to_cpu(fw_capa->max_ap_cache_per_scan);
+	capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
+	capa->max_scan_reporting_threshold =
+		le32_to_cpu(fw_capa->max_scan_reporting_threshold);
+	capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
+	capa->max_significant_change_aps =
+		le32_to_cpu(fw_capa->max_significant_change_aps);
+	capa->max_bssid_history_entries =
+		le32_to_cpu(fw_capa->max_bssid_history_entries);
+	return 0;
+}
+
+/*
+ * Gets uCode section from tlv.
+ */
+static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
+			       const void *data, enum iwl_ucode_type type,
+			       int size)
+{
+	struct fw_img_parsing *img;
+	struct fw_sec *sec;
+	struct fw_sec_parsing *sec_parse;
+
+	if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
+		return -1;
+
+	sec_parse = (struct fw_sec_parsing *)data;
+
+	img = &pieces->img[type];
+	sec = &img->sec[img->sec_counter];
+
+	sec->offset = le32_to_cpu(sec_parse->offset);
+	sec->data = sec_parse->data;
+	sec->size = size - sizeof(sec_parse->offset);
+
+	++img->sec_counter;
+
+	return 0;
+}
+
+static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
+{
+	struct iwl_tlv_calib_data *def_calib =
+					(struct iwl_tlv_calib_data *)data;
+	u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
+	if (ucode_type >= IWL_UCODE_TYPE_MAX) {
+		IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
+			ucode_type);
+		return -EINVAL;
+	}
+	drv->fw.default_calib[ucode_type].flow_trigger =
+		def_calib->calib.flow_trigger;
+	drv->fw.default_calib[ucode_type].event_trigger =
+		def_calib->calib.event_trigger;
+
+	return 0;
+}
+
+static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
+				   struct iwl_ucode_capabilities *capa)
+{
+	const struct iwl_ucode_api *ucode_api = (void *)data;
+	u32 api_index = le32_to_cpu(ucode_api->api_index);
+	u32 api_flags = le32_to_cpu(ucode_api->api_flags);
+	int i;
+
+	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
+		IWL_ERR(drv, "api_index larger than supported by driver\n");
+		/* don't return an error so we can load FW that has more bits */
+		return 0;
+	}
+
+	for (i = 0; i < 32; i++) {
+		if (api_flags & BIT(i))
+			__set_bit(i + 32 * api_index, capa->_api);
+	}
+
+	return 0;
+}
+
+static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
+				      struct iwl_ucode_capabilities *capa)
+{
+	const struct iwl_ucode_capa *ucode_capa = (void *)data;
+	u32 api_index = le32_to_cpu(ucode_capa->api_index);
+	u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
+	int i;
+
+	if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
+		IWL_ERR(drv, "api_index larger than supported by driver\n");
+		/* don't return an error so we can load FW that has more bits */
+		return 0;
+	}
+
+	for (i = 0; i < 32; i++) {
+		if (api_flags & BIT(i))
+			__set_bit(i + 32 * api_index, capa->_capa);
+	}
+
+	return 0;
+}
+
+static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
+				    const struct firmware *ucode_raw,
+				    struct iwl_firmware_pieces *pieces)
+{
+	struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
+	u32 api_ver, hdr_size, build;
+	char buildstr[25];
+	const u8 *src;
+
+	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
+	api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
+
+	switch (api_ver) {
+	default:
+		hdr_size = 28;
+		if (ucode_raw->size < hdr_size) {
+			IWL_ERR(drv, "File size too small!\n");
+			return -EINVAL;
+		}
+		build = le32_to_cpu(ucode->u.v2.build);
+		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
+			     le32_to_cpu(ucode->u.v2.inst_size));
+		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
+			     le32_to_cpu(ucode->u.v2.data_size));
+		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
+			     le32_to_cpu(ucode->u.v2.init_size));
+		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
+			     le32_to_cpu(ucode->u.v2.init_data_size));
+		src = ucode->u.v2.data;
+		break;
+	case 0:
+	case 1:
+	case 2:
+		hdr_size = 24;
+		if (ucode_raw->size < hdr_size) {
+			IWL_ERR(drv, "File size too small!\n");
+			return -EINVAL;
+		}
+		build = 0;
+		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
+			     le32_to_cpu(ucode->u.v1.inst_size));
+		set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
+			     le32_to_cpu(ucode->u.v1.data_size));
+		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
+			     le32_to_cpu(ucode->u.v1.init_size));
+		set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
+			     le32_to_cpu(ucode->u.v1.init_data_size));
+		src = ucode->u.v1.data;
+		break;
+	}
+
+	if (build)
+		sprintf(buildstr, " build %u%s", build,
+		       (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
+				? " (EXP)" : "");
+	else
+		buildstr[0] = '\0';
+
+	snprintf(drv->fw.fw_version,
+		 sizeof(drv->fw.fw_version),
+		 "%u.%u.%u.%u%s",
+		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
+		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
+		 IWL_UCODE_API(drv->fw.ucode_ver),
+		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
+		 buildstr);
+
+	/* Verify size of file vs. image size info in file's header */
+
+	if (ucode_raw->size != hdr_size +
+	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
+	    get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
+	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
+	    get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
+
+		IWL_ERR(drv,
+			"uCode file size %d does not match expected size\n",
+			(int)ucode_raw->size);
+		return -EINVAL;
+	}
+
+
+	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
+	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
+	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
+		       IWLAGN_RTC_INST_LOWER_BOUND);
+	set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
+	src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
+	set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
+		       IWLAGN_RTC_DATA_LOWER_BOUND);
+	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
+	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
+	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
+		       IWLAGN_RTC_INST_LOWER_BOUND);
+	set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
+	src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
+	set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
+		       IWLAGN_RTC_DATA_LOWER_BOUND);
+	return 0;
+}
+
+static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
+				const struct firmware *ucode_raw,
+				struct iwl_firmware_pieces *pieces,
+				struct iwl_ucode_capabilities *capa)
+{
+	struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
+	struct iwl_ucode_tlv *tlv;
+	size_t len = ucode_raw->size;
+	const u8 *data;
+	u32 tlv_len;
+	u32 usniffer_img;
+	enum iwl_ucode_tlv_type tlv_type;
+	const u8 *tlv_data;
+	char buildstr[25];
+	u32 build, paging_mem_size;
+	int num_of_cpus;
+	bool usniffer_images = false;
+	bool usniffer_req = false;
+	bool gscan_capa = false;
+
+	if (len < sizeof(*ucode)) {
+		IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
+		return -EINVAL;
+	}
+
+	if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
+		IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
+			le32_to_cpu(ucode->magic));
+		return -EINVAL;
+	}
+
+	drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
+	memcpy(drv->fw.human_readable, ucode->human_readable,
+	       sizeof(drv->fw.human_readable));
+	build = le32_to_cpu(ucode->build);
+
+	if (build)
+		sprintf(buildstr, " build %u%s", build,
+		       (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
+				? " (EXP)" : "");
+	else
+		buildstr[0] = '\0';
+
+	snprintf(drv->fw.fw_version,
+		 sizeof(drv->fw.fw_version),
+		 "%u.%u.%u.%u%s",
+		 IWL_UCODE_MAJOR(drv->fw.ucode_ver),
+		 IWL_UCODE_MINOR(drv->fw.ucode_ver),
+		 IWL_UCODE_API(drv->fw.ucode_ver),
+		 IWL_UCODE_SERIAL(drv->fw.ucode_ver),
+		 buildstr);
+
+	data = ucode->data;
+
+	len -= sizeof(*ucode);
+
+	while (len >= sizeof(*tlv)) {
+		len -= sizeof(*tlv);
+		tlv = (void *)data;
+
+		tlv_len = le32_to_cpu(tlv->length);
+		tlv_type = le32_to_cpu(tlv->type);
+		tlv_data = tlv->data;
+
+		if (len < tlv_len) {
+			IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
+				len, tlv_len);
+			return -EINVAL;
+		}
+		len -= ALIGN(tlv_len, 4);
+		data += sizeof(*tlv) + ALIGN(tlv_len, 4);
+
+		switch (tlv_type) {
+		case IWL_UCODE_TLV_INST:
+			set_sec_data(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_INST, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_INST, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_REGULAR,
+				       IWL_UCODE_SECTION_INST,
+				       IWLAGN_RTC_INST_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_DATA:
+			set_sec_data(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_DATA, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_DATA, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_REGULAR,
+				       IWL_UCODE_SECTION_DATA,
+				       IWLAGN_RTC_DATA_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_INIT:
+			set_sec_data(pieces, IWL_UCODE_INIT,
+				     IWL_UCODE_SECTION_INST, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_INIT,
+				     IWL_UCODE_SECTION_INST, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_INIT,
+				       IWL_UCODE_SECTION_INST,
+				       IWLAGN_RTC_INST_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_INIT_DATA:
+			set_sec_data(pieces, IWL_UCODE_INIT,
+				     IWL_UCODE_SECTION_DATA, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_INIT,
+				     IWL_UCODE_SECTION_DATA, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_INIT,
+				       IWL_UCODE_SECTION_DATA,
+				       IWLAGN_RTC_DATA_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_BOOT:
+			IWL_ERR(drv, "Found unexpected BOOT ucode\n");
+			break;
+		case IWL_UCODE_TLV_PROBE_MAX_LEN:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			capa->max_probe_length =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_PAN:
+			if (tlv_len)
+				goto invalid_tlv_len;
+			capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
+			break;
+		case IWL_UCODE_TLV_FLAGS:
+			/* must be at least one u32 */
+			if (tlv_len < sizeof(u32))
+				goto invalid_tlv_len;
+			/* and a proper number of u32s */
+			if (tlv_len % sizeof(u32))
+				goto invalid_tlv_len;
+			/*
+			 * This driver only reads the first u32 as
+			 * right now no more features are defined,
+			 * if that changes then either the driver
+			 * will not work with the new firmware, or
+			 * it'll not take advantage of new features.
+			 */
+			capa->flags = le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_API_CHANGES_SET:
+			if (tlv_len != sizeof(struct iwl_ucode_api))
+				goto invalid_tlv_len;
+			if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
+				goto tlv_error;
+			break;
+		case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
+			if (tlv_len != sizeof(struct iwl_ucode_capa))
+				goto invalid_tlv_len;
+			if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
+				goto tlv_error;
+			break;
+		case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->init_evtlog_ptr =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->init_evtlog_size =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->init_errlog_ptr =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->inst_evtlog_ptr =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->inst_evtlog_size =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			pieces->inst_errlog_ptr =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
+			if (tlv_len)
+				goto invalid_tlv_len;
+			drv->fw.enhance_sensitivity_table = true;
+			break;
+		case IWL_UCODE_TLV_WOWLAN_INST:
+			set_sec_data(pieces, IWL_UCODE_WOWLAN,
+				     IWL_UCODE_SECTION_INST, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_WOWLAN,
+				     IWL_UCODE_SECTION_INST, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
+				       IWL_UCODE_SECTION_INST,
+				       IWLAGN_RTC_INST_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_WOWLAN_DATA:
+			set_sec_data(pieces, IWL_UCODE_WOWLAN,
+				     IWL_UCODE_SECTION_DATA, tlv_data);
+			set_sec_size(pieces, IWL_UCODE_WOWLAN,
+				     IWL_UCODE_SECTION_DATA, tlv_len);
+			set_sec_offset(pieces, IWL_UCODE_WOWLAN,
+				       IWL_UCODE_SECTION_DATA,
+				       IWLAGN_RTC_DATA_LOWER_BOUND);
+			break;
+		case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			capa->standard_phy_calibration_size =
+					le32_to_cpup((__le32 *)tlv_data);
+			break;
+		 case IWL_UCODE_TLV_SEC_RT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_SEC_INIT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_SEC_WOWLAN:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_DEF_CALIB:
+			if (tlv_len != sizeof(struct iwl_tlv_calib_data))
+				goto invalid_tlv_len;
+			if (iwl_set_default_calib(drv, tlv_data))
+				goto tlv_error;
+			break;
+		case IWL_UCODE_TLV_PHY_SKU:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
+			drv->fw.valid_tx_ant = (drv->fw.phy_config &
+						FW_PHY_CFG_TX_CHAIN) >>
+						FW_PHY_CFG_TX_CHAIN_POS;
+			drv->fw.valid_rx_ant = (drv->fw.phy_config &
+						FW_PHY_CFG_RX_CHAIN) >>
+						FW_PHY_CFG_RX_CHAIN_POS;
+			break;
+		 case IWL_UCODE_TLV_SECURE_SEC_RT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_SECURE_SEC_INIT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			break;
+		case IWL_UCODE_TLV_NUM_OF_CPU:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			num_of_cpus =
+				le32_to_cpup((__le32 *)tlv_data);
+
+			if (num_of_cpus == 2) {
+				drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
+					true;
+				drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
+					true;
+				drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
+					true;
+			} else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
+				IWL_ERR(drv, "Driver support upto 2 CPUs\n");
+				return -EINVAL;
+			}
+			break;
+		case IWL_UCODE_TLV_CSCHEME:
+			if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
+				goto invalid_tlv_len;
+			break;
+		case IWL_UCODE_TLV_N_SCAN_CHANNELS:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			capa->n_scan_channels =
+				le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_FW_VERSION: {
+			__le32 *ptr = (void *)tlv_data;
+			u32 major, minor;
+			u8 local_comp;
+
+			if (tlv_len != sizeof(u32) * 3)
+				goto invalid_tlv_len;
+
+			major = le32_to_cpup(ptr++);
+			minor = le32_to_cpup(ptr++);
+			local_comp = le32_to_cpup(ptr);
+
+			snprintf(drv->fw.fw_version,
+				 sizeof(drv->fw.fw_version), "%u.%u.%u",
+				 major, minor, local_comp);
+			break;
+			}
+		case IWL_UCODE_TLV_FW_DBG_DEST: {
+			struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
+
+			if (pieces->dbg_dest_tlv) {
+				IWL_ERR(drv,
+					"dbg destination ignored, already exists\n");
+				break;
+			}
+
+			pieces->dbg_dest_tlv = dest;
+			IWL_INFO(drv, "Found debug destination: %s\n",
+				 get_fw_dbg_mode_string(dest->monitor_mode));
+
+			drv->fw.dbg_dest_reg_num =
+				tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
+						   reg_ops);
+			drv->fw.dbg_dest_reg_num /=
+				sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
+
+			break;
+			}
+		case IWL_UCODE_TLV_FW_DBG_CONF: {
+			struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
+
+			if (!pieces->dbg_dest_tlv) {
+				IWL_ERR(drv,
+					"Ignore dbg config %d - no destination configured\n",
+					conf->id);
+				break;
+			}
+
+			if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
+				IWL_ERR(drv,
+					"Skip unknown configuration: %d\n",
+					conf->id);
+				break;
+			}
+
+			if (pieces->dbg_conf_tlv[conf->id]) {
+				IWL_ERR(drv,
+					"Ignore duplicate dbg config %d\n",
+					conf->id);
+				break;
+			}
+
+			if (conf->usniffer)
+				usniffer_req = true;
+
+			IWL_INFO(drv, "Found debug configuration: %d\n",
+				 conf->id);
+
+			pieces->dbg_conf_tlv[conf->id] = conf;
+			pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
+			break;
+			}
+		case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
+			struct iwl_fw_dbg_trigger_tlv *trigger =
+				(void *)tlv_data;
+			u32 trigger_id = le32_to_cpu(trigger->id);
+
+			if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
+				IWL_ERR(drv,
+					"Skip unknown trigger: %u\n",
+					trigger->id);
+				break;
+			}
+
+			if (pieces->dbg_trigger_tlv[trigger_id]) {
+				IWL_ERR(drv,
+					"Ignore duplicate dbg trigger %u\n",
+					trigger->id);
+				break;
+			}
+
+			IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
+
+			pieces->dbg_trigger_tlv[trigger_id] = trigger;
+			pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
+			break;
+			}
+		case IWL_UCODE_TLV_SEC_RT_USNIFFER:
+			usniffer_images = true;
+			iwl_store_ucode_sec(pieces, tlv_data,
+					    IWL_UCODE_REGULAR_USNIFFER,
+					    tlv_len);
+			break;
+		case IWL_UCODE_TLV_PAGING:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
+
+			IWL_DEBUG_FW(drv,
+				     "Paging: paging enabled (size = %u bytes)\n",
+				     paging_mem_size);
+
+			if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
+				IWL_ERR(drv,
+					"Paging: driver supports up to %lu bytes for paging image\n",
+					MAX_PAGING_IMAGE_SIZE);
+				return -EINVAL;
+			}
+
+			if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
+				IWL_ERR(drv,
+					"Paging: image isn't multiple %lu\n",
+					FW_PAGING_SIZE);
+				return -EINVAL;
+			}
+
+			drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
+				paging_mem_size;
+			usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
+			drv->fw.img[usniffer_img].paging_mem_size =
+				paging_mem_size;
+			break;
+		case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			drv->fw.sdio_adma_addr =
+				le32_to_cpup((__le32 *)tlv_data);
+			break;
+		case IWL_UCODE_TLV_FW_GSCAN_CAPA:
+			if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len))
+				goto invalid_tlv_len;
+			gscan_capa = true;
+			break;
+		default:
+			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
+			break;
+		}
+	}
+
+	if (usniffer_req && !usniffer_images) {
+		IWL_ERR(drv,
+			"user selected to work with usniffer but usniffer image isn't available in ucode package\n");
+		return -EINVAL;
+	}
+
+	if (len) {
+		IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
+		iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
+		return -EINVAL;
+	}
+
+	/*
+	 * If ucode advertises that it supports GSCAN but GSCAN
+	 * capabilities TLV is not present, warn and continue without GSCAN.
+	 */
+	if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
+	    WARN(!gscan_capa,
+		 "GSCAN is supported but capabilities TLV is unavailable\n"))
+		__clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
+			    capa->_capa);
+
+	return 0;
+
+ invalid_tlv_len:
+	IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
+ tlv_error:
+	iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
+
+	return -EINVAL;
+}
+
+static int iwl_alloc_ucode(struct iwl_drv *drv,
+			   struct iwl_firmware_pieces *pieces,
+			   enum iwl_ucode_type type)
+{
+	int i;
+	for (i = 0;
+	     i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
+	     i++)
+		if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
+				      get_sec(pieces, type, i)))
+			return -ENOMEM;
+	return 0;
+}
+
+static int validate_sec_sizes(struct iwl_drv *drv,
+			      struct iwl_firmware_pieces *pieces,
+			      const struct iwl_cfg *cfg)
+{
+	IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
+		get_sec_size(pieces, IWL_UCODE_REGULAR,
+			     IWL_UCODE_SECTION_INST));
+	IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
+		get_sec_size(pieces, IWL_UCODE_REGULAR,
+			     IWL_UCODE_SECTION_DATA));
+	IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
+		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
+	IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
+		get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
+
+	/* Verify that uCode images will fit in card's SRAM. */
+	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
+	    cfg->max_inst_size) {
+		IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
+			get_sec_size(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_INST));
+		return -1;
+	}
+
+	if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
+	    cfg->max_data_size) {
+		IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
+			get_sec_size(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_DATA));
+		return -1;
+	}
+
+	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
+	     cfg->max_inst_size) {
+		IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
+			get_sec_size(pieces, IWL_UCODE_INIT,
+				     IWL_UCODE_SECTION_INST));
+		return -1;
+	}
+
+	if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
+	    cfg->max_data_size) {
+		IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
+			get_sec_size(pieces, IWL_UCODE_REGULAR,
+				     IWL_UCODE_SECTION_DATA));
+		return -1;
+	}
+	return 0;
+}
+
+static struct iwl_op_mode *
+_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
+{
+	const struct iwl_op_mode_ops *ops = op->ops;
+	struct dentry *dbgfs_dir = NULL;
+	struct iwl_op_mode *op_mode = NULL;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	drv->dbgfs_op_mode = debugfs_create_dir(op->name,
+						drv->dbgfs_drv);
+	if (!drv->dbgfs_op_mode) {
+		IWL_ERR(drv,
+			"failed to create opmode debugfs directory\n");
+		return op_mode;
+	}
+	dbgfs_dir = drv->dbgfs_op_mode;
+#endif
+
+	op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (!op_mode) {
+		debugfs_remove_recursive(drv->dbgfs_op_mode);
+		drv->dbgfs_op_mode = NULL;
+	}
+#endif
+
+	return op_mode;
+}
+
+static void _iwl_op_mode_stop(struct iwl_drv *drv)
+{
+	/* op_mode can be NULL if its start failed */
+	if (drv->op_mode) {
+		iwl_op_mode_stop(drv->op_mode);
+		drv->op_mode = NULL;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+		debugfs_remove_recursive(drv->dbgfs_op_mode);
+		drv->dbgfs_op_mode = NULL;
+#endif
+	}
+}
+
+/**
+ * iwl_req_fw_callback - callback when firmware was loaded
+ *
+ * If loaded successfully, copies the firmware into buffers
+ * for the card to fetch (via DMA).
+ */
+static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
+{
+	struct iwl_drv *drv = context;
+	struct iwl_fw *fw = &drv->fw;
+	struct iwl_ucode_header *ucode;
+	struct iwlwifi_opmode_table *op;
+	int err;
+	struct iwl_firmware_pieces *pieces;
+	const unsigned int api_max = drv->cfg->ucode_api_max;
+	unsigned int api_ok = drv->cfg->ucode_api_ok;
+	const unsigned int api_min = drv->cfg->ucode_api_min;
+	size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
+	u32 api_ver;
+	int i;
+	bool load_module = false;
+
+	fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
+	fw->ucode_capa.standard_phy_calibration_size =
+			IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
+	fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
+
+	if (!api_ok)
+		api_ok = api_max;
+
+	pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
+	if (!pieces)
+		return;
+
+	if (!ucode_raw) {
+		if (drv->fw_index <= api_ok)
+			IWL_ERR(drv,
+				"request for firmware file '%s' failed.\n",
+				drv->firmware_name);
+		goto try_again;
+	}
+
+	IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
+		       drv->firmware_name, ucode_raw->size);
+
+	/* Make sure that we got at least the API version number */
+	if (ucode_raw->size < 4) {
+		IWL_ERR(drv, "File size way too small!\n");
+		goto try_again;
+	}
+
+	/* Data from ucode file:  header followed by uCode images */
+	ucode = (struct iwl_ucode_header *)ucode_raw->data;
+
+	if (ucode->ver)
+		err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
+	else
+		err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
+					     &fw->ucode_capa);
+
+	if (err)
+		goto try_again;
+
+	if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
+		api_ver = drv->fw.ucode_ver;
+	else
+		api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
+
+	/*
+	 * api_ver should match the api version forming part of the
+	 * firmware filename ... but we don't check for that and only rely
+	 * on the API version read from firmware header from here on forward
+	 */
+	/* no api version check required for experimental uCode */
+	if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
+		if (api_ver < api_min || api_ver > api_max) {
+			IWL_ERR(drv,
+				"Driver unable to support your firmware API. "
+				"Driver supports v%u, firmware is v%u.\n",
+				api_max, api_ver);
+			goto try_again;
+		}
+
+		if (api_ver < api_ok) {
+			if (api_ok != api_max)
+				IWL_ERR(drv, "Firmware has old API version, "
+					"expected v%u through v%u, got v%u.\n",
+					api_ok, api_max, api_ver);
+			else
+				IWL_ERR(drv, "Firmware has old API version, "
+					"expected v%u, got v%u.\n",
+					api_max, api_ver);
+			IWL_ERR(drv, "New firmware can be obtained from "
+				      "http://www.intellinuxwireless.org/.\n");
+		}
+	}
+
+	/*
+	 * In mvm uCode there is no difference between data and instructions
+	 * sections.
+	 */
+	if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
+		goto try_again;
+
+	/* Allocate ucode buffers for card's bus-master loading ... */
+
+	/* Runtime instructions and 2 copies of data:
+	 * 1) unmodified from disk
+	 * 2) backup cache for save/restore during power-downs */
+	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
+		if (iwl_alloc_ucode(drv, pieces, i))
+			goto out_free_fw;
+
+	if (pieces->dbg_dest_tlv) {
+		drv->fw.dbg_dest_tlv =
+			kmemdup(pieces->dbg_dest_tlv,
+				sizeof(*pieces->dbg_dest_tlv) +
+				sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
+				drv->fw.dbg_dest_reg_num, GFP_KERNEL);
+
+		if (!drv->fw.dbg_dest_tlv)
+			goto out_free_fw;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
+		if (pieces->dbg_conf_tlv[i]) {
+			drv->fw.dbg_conf_tlv_len[i] =
+				pieces->dbg_conf_tlv_len[i];
+			drv->fw.dbg_conf_tlv[i] =
+				kmemdup(pieces->dbg_conf_tlv[i],
+					drv->fw.dbg_conf_tlv_len[i],
+					GFP_KERNEL);
+			if (!drv->fw.dbg_conf_tlv[i])
+				goto out_free_fw;
+		}
+	}
+
+	memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
+
+	trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
+		sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
+	trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
+	trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
+		sizeof(struct iwl_fw_dbg_trigger_cmd);
+	trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
+		sizeof(struct iwl_fw_dbg_trigger_mlme);
+	trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
+		sizeof(struct iwl_fw_dbg_trigger_stats);
+	trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
+		sizeof(struct iwl_fw_dbg_trigger_low_rssi);
+	trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
+		sizeof(struct iwl_fw_dbg_trigger_txq_timer);
+	trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
+		sizeof(struct iwl_fw_dbg_trigger_time_event);
+	trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
+		sizeof(struct iwl_fw_dbg_trigger_ba);
+
+	for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
+		if (pieces->dbg_trigger_tlv[i]) {
+			/*
+			 * If the trigger isn't long enough, WARN and exit.
+			 * Someone is trying to debug something and he won't
+			 * be able to catch the bug he is trying to chase.
+			 * We'd better be noisy to be sure he knows what's
+			 * going on.
+			 */
+			if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
+				    (trigger_tlv_sz[i] +
+				     sizeof(struct iwl_fw_dbg_trigger_tlv))))
+				goto out_free_fw;
+			drv->fw.dbg_trigger_tlv_len[i] =
+				pieces->dbg_trigger_tlv_len[i];
+			drv->fw.dbg_trigger_tlv[i] =
+				kmemdup(pieces->dbg_trigger_tlv[i],
+					drv->fw.dbg_trigger_tlv_len[i],
+					GFP_KERNEL);
+			if (!drv->fw.dbg_trigger_tlv[i])
+				goto out_free_fw;
+		}
+	}
+
+	/* Now that we can no longer fail, copy information */
+
+	/*
+	 * The (size - 16) / 12 formula is based on the information recorded
+	 * for each event, which is of mode 1 (including timestamp) for all
+	 * new microcodes that include this information.
+	 */
+	fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
+	if (pieces->init_evtlog_size)
+		fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
+	else
+		fw->init_evtlog_size =
+			drv->cfg->base_params->max_event_log_size;
+	fw->init_errlog_ptr = pieces->init_errlog_ptr;
+	fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
+	if (pieces->inst_evtlog_size)
+		fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
+	else
+		fw->inst_evtlog_size =
+			drv->cfg->base_params->max_event_log_size;
+	fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
+
+	/*
+	 * figure out the offset of chain noise reset and gain commands
+	 * base on the size of standard phy calibration commands table size
+	 */
+	if (fw->ucode_capa.standard_phy_calibration_size >
+	    IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
+		fw->ucode_capa.standard_phy_calibration_size =
+			IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
+
+	/* We have our copies now, allow OS release its copies */
+	release_firmware(ucode_raw);
+
+	mutex_lock(&iwlwifi_opmode_table_mtx);
+	if (fw->mvm_fw)
+		op = &iwlwifi_opmode_table[MVM_OP_MODE];
+	else
+		op = &iwlwifi_opmode_table[DVM_OP_MODE];
+
+	IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
+		 drv->fw.fw_version, op->name);
+
+	/* add this device to the list of devices using this op_mode */
+	list_add_tail(&drv->list, &op->drv);
+
+	if (op->ops) {
+		drv->op_mode = _iwl_op_mode_start(drv, op);
+
+		if (!drv->op_mode) {
+			mutex_unlock(&iwlwifi_opmode_table_mtx);
+			goto out_unbind;
+		}
+	} else {
+		load_module = true;
+	}
+	mutex_unlock(&iwlwifi_opmode_table_mtx);
+
+	/*
+	 * Complete the firmware request last so that
+	 * a driver unbind (stop) doesn't run while we
+	 * are doing the start() above.
+	 */
+	complete(&drv->request_firmware_complete);
+
+	/*
+	 * Load the module last so we don't block anything
+	 * else from proceeding if the module fails to load
+	 * or hangs loading.
+	 */
+	if (load_module) {
+		err = request_module("%s", op->name);
+#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
+		if (err)
+			IWL_ERR(drv,
+				"failed to load module %s (error %d), is dynamic loading enabled?\n",
+				op->name, err);
+#endif
+	}
+	kfree(pieces);
+	return;
+
+ try_again:
+	/* try next, if any */
+	release_firmware(ucode_raw);
+	if (iwl_request_firmware(drv, false))
+		goto out_unbind;
+	kfree(pieces);
+	return;
+
+ out_free_fw:
+	IWL_ERR(drv, "failed to allocate pci memory\n");
+	iwl_dealloc_ucode(drv);
+	release_firmware(ucode_raw);
+ out_unbind:
+	kfree(pieces);
+	complete(&drv->request_firmware_complete);
+	device_release_driver(drv->trans->dev);
+}
+
+struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
+			      const struct iwl_cfg *cfg)
+{
+	struct iwl_drv *drv;
+	int ret;
+
+	drv = kzalloc(sizeof(*drv), GFP_KERNEL);
+	if (!drv) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	drv->trans = trans;
+	drv->dev = trans->dev;
+	drv->cfg = cfg;
+
+	init_completion(&drv->request_firmware_complete);
+	INIT_LIST_HEAD(&drv->list);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	/* Create the device debugfs entries. */
+	drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
+					    iwl_dbgfs_root);
+
+	if (!drv->dbgfs_drv) {
+		IWL_ERR(drv, "failed to create debugfs directory\n");
+		ret = -ENOMEM;
+		goto err_free_drv;
+	}
+
+	/* Create transport layer debugfs dir */
+	drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
+
+	if (!drv->trans->dbgfs_dir) {
+		IWL_ERR(drv, "failed to create transport debugfs directory\n");
+		ret = -ENOMEM;
+		goto err_free_dbgfs;
+	}
+#endif
+
+	ret = iwl_request_firmware(drv, true);
+	if (ret) {
+		IWL_ERR(trans, "Couldn't request the fw\n");
+		goto err_fw;
+	}
+
+	return drv;
+
+err_fw:
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+err_free_dbgfs:
+	debugfs_remove_recursive(drv->dbgfs_drv);
+err_free_drv:
+#endif
+	kfree(drv);
+err:
+	return ERR_PTR(ret);
+}
+
+void iwl_drv_stop(struct iwl_drv *drv)
+{
+	wait_for_completion(&drv->request_firmware_complete);
+
+	_iwl_op_mode_stop(drv);
+
+	iwl_dealloc_ucode(drv);
+
+	mutex_lock(&iwlwifi_opmode_table_mtx);
+	/*
+	 * List is empty (this item wasn't added)
+	 * when firmware loading failed -- in that
+	 * case we can't remove it from any list.
+	 */
+	if (!list_empty(&drv->list))
+		list_del(&drv->list);
+	mutex_unlock(&iwlwifi_opmode_table_mtx);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	debugfs_remove_recursive(drv->dbgfs_drv);
+#endif
+
+	kfree(drv);
+}
+
+
+/* shared module parameters */
+struct iwl_mod_params iwlwifi_mod_params = {
+	.restart_fw = true,
+	.bt_coex_active = true,
+	.power_level = IWL_POWER_INDEX_1,
+	.d0i3_disable = true,
+#ifndef CONFIG_IWLWIFI_UAPSD
+	.uapsd_disable = true,
+#endif /* CONFIG_IWLWIFI_UAPSD */
+	/* the rest are 0 by default */
+};
+IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
+
+int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
+{
+	int i;
+	struct iwl_drv *drv;
+	struct iwlwifi_opmode_table *op;
+
+	mutex_lock(&iwlwifi_opmode_table_mtx);
+	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
+		op = &iwlwifi_opmode_table[i];
+		if (strcmp(op->name, name))
+			continue;
+		op->ops = ops;
+		/* TODO: need to handle exceptional case */
+		list_for_each_entry(drv, &op->drv, list)
+			drv->op_mode = _iwl_op_mode_start(drv, op);
+
+		mutex_unlock(&iwlwifi_opmode_table_mtx);
+		return 0;
+	}
+	mutex_unlock(&iwlwifi_opmode_table_mtx);
+	return -EIO;
+}
+IWL_EXPORT_SYMBOL(iwl_opmode_register);
+
+void iwl_opmode_deregister(const char *name)
+{
+	int i;
+	struct iwl_drv *drv;
+
+	mutex_lock(&iwlwifi_opmode_table_mtx);
+	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
+		if (strcmp(iwlwifi_opmode_table[i].name, name))
+			continue;
+		iwlwifi_opmode_table[i].ops = NULL;
+
+		/* call the stop routine for all devices */
+		list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
+			_iwl_op_mode_stop(drv);
+
+		mutex_unlock(&iwlwifi_opmode_table_mtx);
+		return;
+	}
+	mutex_unlock(&iwlwifi_opmode_table_mtx);
+}
+IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
+
+static int __init iwl_drv_init(void)
+{
+	int i;
+
+	mutex_init(&iwlwifi_opmode_table_mtx);
+
+	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
+		INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
+
+	pr_info(DRV_DESCRIPTION "\n");
+	pr_info(DRV_COPYRIGHT "\n");
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	/* Create the root of iwlwifi debugfs subsystem. */
+	iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
+
+	if (!iwl_dbgfs_root)
+		return -EFAULT;
+#endif
+
+	return iwl_pci_register_driver();
+}
+module_init(iwl_drv_init);
+
+static void __exit iwl_drv_exit(void)
+{
+	iwl_pci_unregister_driver();
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	debugfs_remove_recursive(iwl_dbgfs_root);
+#endif
+}
+module_exit(iwl_drv_exit);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
+		   S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif
+
+module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
+MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
+module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
+MODULE_PARM_DESC(11n_disable,
+	"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
+module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K,
+		   int, S_IRUGO);
+MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)");
+module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
+MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
+
+module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
+		   int, S_IRUGO);
+MODULE_PARM_DESC(antenna_coupling,
+		 "specify antenna coupling in dB (default: 0 dB)");
+
+module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
+MODULE_PARM_DESC(nvm_file, "NVM file name");
+
+module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
+		   bool, S_IRUGO);
+MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
+
+module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
+		   bool, S_IRUGO);
+MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
+
+module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
+		   bool, S_IRUGO | S_IWUSR);
+#ifdef CONFIG_IWLWIFI_UAPSD
+MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
+#else
+MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
+#endif
+
+/*
+ * set bt_coex_active to true, uCode will do kill/defer
+ * every time the priority line is asserted (BT is sending signals on the
+ * priority line in the PCIx).
+ * set bt_coex_active to false, uCode will ignore the BT activity and
+ * perform the normal operation
+ *
+ * User might experience transmit issue on some platform due to WiFi/BT
+ * co-exist problem. The possible behaviors are:
+ *   Able to scan and finding all the available AP
+ *   Not able to associate with any AP
+ * On those platforms, WiFi communication can be restored by set
+ * "bt_coex_active" module parameter to "false"
+ *
+ * default: bt_coex_active = true (BT_COEX_ENABLE)
+ */
+module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
+		bool, S_IRUGO);
+MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
+
+module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
+MODULE_PARM_DESC(led_mode, "0=system default, "
+		"1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
+
+module_param_named(power_save, iwlwifi_mod_params.power_save,
+		bool, S_IRUGO);
+MODULE_PARM_DESC(power_save,
+		 "enable WiFi power management (default: disable)");
+
+module_param_named(power_level, iwlwifi_mod_params.power_level,
+		int, S_IRUGO);
+MODULE_PARM_DESC(power_level,
+		 "default power save level (range from 1 - 5, default: 1)");
+
+module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
+MODULE_PARM_DESC(fw_monitor,
+		 "firmware monitor - to debug FW (default: false - needs lots of memory)");