fw.c 46.1 KB
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/******************************************************************************
 *
 * 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
 *
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 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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 *
 * 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
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 * in the file called COPYING.
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 *
 * Contact Information:
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 *  Intel Linux Wireless <linuxwifi@intel.com>
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 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
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 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
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 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
#include <net/mac80211.h>
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#include <linux/netdevice.h>
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#include <linux/acpi.h>
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#include "iwl-trans.h"
#include "iwl-op-mode.h"
#include "iwl-fw.h"
#include "iwl-debug.h"
#include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
#include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
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#include "iwl-prph.h"
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#include "iwl-eeprom-parse.h"

#include "mvm.h"
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#include "fw-dbg.h"
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#include "iwl-phy-db.h"

#define MVM_UCODE_ALIVE_TIMEOUT	HZ
#define MVM_UCODE_CALIB_TIMEOUT	(2*HZ)

#define UCODE_VALID_OK	cpu_to_le32(0x1)

struct iwl_mvm_alive_data {
	bool valid;
	u32 scd_base_addr;
};

static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
{
	struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
		.valid = cpu_to_le32(valid_tx_ant),
	};

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	IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
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	return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
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				    sizeof(tx_ant_cmd), &tx_ant_cmd);
}

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static int iwl_send_rss_cfg_cmd(struct iwl_mvm *mvm)
{
	int i;
	struct iwl_rss_config_cmd cmd = {
		.flags = cpu_to_le32(IWL_RSS_ENABLE),
		.hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
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			     IWL_RSS_HASH_TYPE_IPV4_UDP |
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			     IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
			     IWL_RSS_HASH_TYPE_IPV6_TCP |
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			     IWL_RSS_HASH_TYPE_IPV6_UDP |
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			     IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
	};

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	if (mvm->trans->num_rx_queues == 1)
		return 0;

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	/* Do not direct RSS traffic to Q 0 which is our fallback queue */
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	for (i = 0; i < ARRAY_SIZE(cmd.indirection_table); i++)
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		cmd.indirection_table[i] =
			1 + (i % (mvm->trans->num_rx_queues - 1));
	netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
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	return iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
}

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static int iwl_mvm_send_dqa_cmd(struct iwl_mvm *mvm)
{
	struct iwl_dqa_enable_cmd dqa_cmd = {
		.cmd_queue = cpu_to_le32(IWL_MVM_DQA_CMD_QUEUE),
	};
	u32 cmd_id = iwl_cmd_id(DQA_ENABLE_CMD, DATA_PATH_GROUP, 0);
	int ret;

	ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, sizeof(dqa_cmd), &dqa_cmd);
	if (ret)
		IWL_ERR(mvm, "Failed to send DQA enabling command: %d\n", ret);
	else
		IWL_DEBUG_FW(mvm, "Working in DQA mode\n");

	return ret;
}

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void iwl_free_fw_paging(struct iwl_mvm *mvm)
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{
	int i;

	if (!mvm->fw_paging_db[0].fw_paging_block)
		return;

	for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {
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		struct iwl_fw_paging *paging = &mvm->fw_paging_db[i];

		if (!paging->fw_paging_block) {
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			IWL_DEBUG_FW(mvm,
				     "Paging: block %d already freed, continue to next page\n",
				     i);

			continue;
		}
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		dma_unmap_page(mvm->trans->dev, paging->fw_paging_phys,
			       paging->fw_paging_size, DMA_BIDIRECTIONAL);
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		__free_pages(paging->fw_paging_block,
			     get_order(paging->fw_paging_size));
		paging->fw_paging_block = NULL;
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	}
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	kfree(mvm->trans->paging_download_buf);
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	mvm->trans->paging_download_buf = NULL;
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	mvm->trans->paging_db = NULL;
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	memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
}

static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
{
	int sec_idx, idx;
	u32 offset = 0;

	/*
	 * find where is the paging image start point:
	 * if CPU2 exist and it's in paging format, then the image looks like:
	 * CPU1 sections (2 or more)
	 * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
	 * CPU2 sections (not paged)
	 * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
	 * non paged to CPU2 paging sec
	 * CPU2 paging CSS
	 * CPU2 paging image (including instruction and data)
	 */
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	for (sec_idx = 0; sec_idx < image->num_sec; sec_idx++) {
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		if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {
			sec_idx++;
			break;
		}
	}

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	/*
	 * If paging is enabled there should be at least 2 more sections left
	 * (one for CSS and one for Paging data)
	 */
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	if (sec_idx >= image->num_sec - 1) {
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		IWL_ERR(mvm, "Paging: Missing CSS and/or paging sections\n");
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		iwl_free_fw_paging(mvm);
		return -EINVAL;
	}

	/* copy the CSS block to the dram */
	IWL_DEBUG_FW(mvm, "Paging: load paging CSS to FW, sec = %d\n",
		     sec_idx);

	memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
	       image->sec[sec_idx].data,
	       mvm->fw_paging_db[0].fw_paging_size);
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	dma_sync_single_for_device(mvm->trans->dev,
				   mvm->fw_paging_db[0].fw_paging_phys,
				   mvm->fw_paging_db[0].fw_paging_size,
				   DMA_BIDIRECTIONAL);
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	IWL_DEBUG_FW(mvm,
		     "Paging: copied %d CSS bytes to first block\n",
		     mvm->fw_paging_db[0].fw_paging_size);

	sec_idx++;

	/*
	 * copy the paging blocks to the dram
	 * loop index start from 1 since that CSS block already copied to dram
	 * and CSS index is 0.
	 * loop stop at num_of_paging_blk since that last block is not full.
	 */
	for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
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		struct iwl_fw_paging *block = &mvm->fw_paging_db[idx];

		memcpy(page_address(block->fw_paging_block),
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		       image->sec[sec_idx].data + offset,
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		       block->fw_paging_size);
		dma_sync_single_for_device(mvm->trans->dev,
					   block->fw_paging_phys,
					   block->fw_paging_size,
					   DMA_BIDIRECTIONAL);

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		IWL_DEBUG_FW(mvm,
			     "Paging: copied %d paging bytes to block %d\n",
			     mvm->fw_paging_db[idx].fw_paging_size,
			     idx);

		offset += mvm->fw_paging_db[idx].fw_paging_size;
	}

	/* copy the last paging block */
	if (mvm->num_of_pages_in_last_blk > 0) {
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		struct iwl_fw_paging *block = &mvm->fw_paging_db[idx];

		memcpy(page_address(block->fw_paging_block),
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		       image->sec[sec_idx].data + offset,
		       FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
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		dma_sync_single_for_device(mvm->trans->dev,
					   block->fw_paging_phys,
					   block->fw_paging_size,
					   DMA_BIDIRECTIONAL);
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		IWL_DEBUG_FW(mvm,
			     "Paging: copied %d pages in the last block %d\n",
			     mvm->num_of_pages_in_last_blk, idx);
	}

	return 0;
}

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void iwl_mvm_mfu_assert_dump_notif(struct iwl_mvm *mvm,
				   struct iwl_rx_cmd_buffer *rxb)
{
	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	struct iwl_mfu_assert_dump_notif *mfu_dump_notif = (void *)pkt->data;
	__le32 *dump_data = mfu_dump_notif->data;
	int n_words = le32_to_cpu(mfu_dump_notif->data_size) / sizeof(__le32);
	int i;

	if (mfu_dump_notif->index_num == 0)
		IWL_INFO(mvm, "MFUART assert id 0x%x occurred\n",
			 le32_to_cpu(mfu_dump_notif->assert_id));

	for (i = 0; i < n_words; i++)
		IWL_DEBUG_INFO(mvm,
			       "MFUART assert dump, dword %u: 0x%08x\n",
			       le16_to_cpu(mfu_dump_notif->index_num) *
			       n_words + i,
			       le32_to_cpu(dump_data[i]));
}

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static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
				   const struct fw_img *image)
{
	struct page *block;
	dma_addr_t phys = 0;
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	int blk_idx, order, num_of_pages, size, dma_enabled;
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	if (mvm->fw_paging_db[0].fw_paging_block)
		return 0;

	dma_enabled = is_device_dma_capable(mvm->trans->dev);

	/* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
	BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);

	num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
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	mvm->num_of_paging_blk =
		DIV_ROUND_UP(num_of_pages, NUM_OF_PAGE_PER_GROUP);
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	mvm->num_of_pages_in_last_blk =
		num_of_pages -
		NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);

	IWL_DEBUG_FW(mvm,
		     "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
		     mvm->num_of_paging_blk,
		     mvm->num_of_pages_in_last_blk);

	/*
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	 * Allocate CSS and paging blocks in dram.
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	 */
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	for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
		/* For CSS allocate 4KB, for others PAGING_BLOCK_SIZE (32K) */
		size = blk_idx ? PAGING_BLOCK_SIZE : FW_PAGING_SIZE;
		order = get_order(size);
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		block = alloc_pages(GFP_KERNEL, order);
		if (!block) {
			/* free all the previous pages since we failed */
			iwl_free_fw_paging(mvm);
			return -ENOMEM;
		}

		mvm->fw_paging_db[blk_idx].fw_paging_block = block;
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		mvm->fw_paging_db[blk_idx].fw_paging_size = size;
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		if (dma_enabled) {
			phys = dma_map_page(mvm->trans->dev, block, 0,
					    PAGE_SIZE << order,
					    DMA_BIDIRECTIONAL);
			if (dma_mapping_error(mvm->trans->dev, phys)) {
				/*
				 * free the previous pages and the current one
				 * since we failed to map_page.
				 */
				iwl_free_fw_paging(mvm);
				return -ENOMEM;
			}
			mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
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		} else {
			mvm->fw_paging_db[blk_idx].fw_paging_phys =
				PAGING_ADDR_SIG |
				blk_idx << BLOCK_2_EXP_SIZE;
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		}

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		if (!blk_idx)
			IWL_DEBUG_FW(mvm,
				     "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
				     order);
		else
			IWL_DEBUG_FW(mvm,
				     "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
				     order);
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	}

	return 0;
}

static int iwl_save_fw_paging(struct iwl_mvm *mvm,
			      const struct fw_img *fw)
{
	int ret;

	ret = iwl_alloc_fw_paging_mem(mvm, fw);
	if (ret)
		return ret;

	return iwl_fill_paging_mem(mvm, fw);
}

/* send paging cmd to FW in case CPU2 has paging image */
static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
{
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	struct iwl_fw_paging_cmd paging_cmd = {
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		.flags =
			cpu_to_le32(PAGING_CMD_IS_SECURED |
				    PAGING_CMD_IS_ENABLED |
				    (mvm->num_of_pages_in_last_blk <<
				    PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
		.block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
		.block_num = cpu_to_le32(mvm->num_of_paging_blk),
	};
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	int blk_idx, size = sizeof(paging_cmd);

	/* A bit hard coded - but this is the old API and will be deprecated */
	if (!iwl_mvm_has_new_tx_api(mvm))
		size -= NUM_OF_FW_PAGING_BLOCKS * 4;
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	/* loop for for all paging blocks + CSS block */
	for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
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		dma_addr_t addr = mvm->fw_paging_db[blk_idx].fw_paging_phys;

		addr = addr >> PAGE_2_EXP_SIZE;

		if (iwl_mvm_has_new_tx_api(mvm)) {
			__le64 phy_addr = cpu_to_le64(addr);

			paging_cmd.device_phy_addr.addr64[blk_idx] = phy_addr;
		} else {
			__le32 phy_addr = cpu_to_le32(addr);

			paging_cmd.device_phy_addr.addr32[blk_idx] = phy_addr;
		}
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	}

	return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
						    IWL_ALWAYS_LONG_GROUP, 0),
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				    0, size, &paging_cmd);
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}

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/*
 * Send paging item cmd to FW in case CPU2 has paging image
 */
static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
{
	int ret;
	struct iwl_fw_get_item_cmd fw_get_item_cmd = {
		.item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
	};

	struct iwl_fw_get_item_resp *item_resp;
	struct iwl_host_cmd cmd = {
		.id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
		.data = { &fw_get_item_cmd, },
	};

	cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);

	ret = iwl_mvm_send_cmd(mvm, &cmd);
	if (ret) {
		IWL_ERR(mvm,
			"Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
			ret);
		return ret;
	}

	item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
	if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
		IWL_ERR(mvm,
			"Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
			le32_to_cpu(item_resp->item_id));
		ret = -EIO;
		goto exit;
	}

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	/* Add an extra page for headers */
	mvm->trans->paging_download_buf = kzalloc(PAGING_BLOCK_SIZE +
						  FW_PAGING_SIZE,
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						  GFP_KERNEL);
	if (!mvm->trans->paging_download_buf) {
		ret = -ENOMEM;
		goto exit;
	}
	mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
	mvm->trans->paging_db = mvm->fw_paging_db;
	IWL_DEBUG_FW(mvm,
		     "Paging: got paging request address (paging_req_addr 0x%08x)\n",
		     mvm->trans->paging_req_addr);

exit:
	iwl_free_resp(&cmd);

	return ret;
}

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static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
			 struct iwl_rx_packet *pkt, void *data)
{
	struct iwl_mvm *mvm =
		container_of(notif_wait, struct iwl_mvm, notif_wait);
	struct iwl_mvm_alive_data *alive_data = data;
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	struct mvm_alive_resp_v3 *palive3;
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	struct mvm_alive_resp *palive;
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	struct iwl_umac_alive *umac;
	struct iwl_lmac_alive *lmac1;
	struct iwl_lmac_alive *lmac2 = NULL;
	u16 status;
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	if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
		palive = (void *)pkt->data;
		umac = &palive->umac_data;
		lmac1 = &palive->lmac_data[0];
		lmac2 = &palive->lmac_data[1];
		status = le16_to_cpu(palive->status);
	} else {
		palive3 = (void *)pkt->data;
		umac = &palive3->umac_data;
		lmac1 = &palive3->lmac_data;
		status = le16_to_cpu(palive3->status);
	}
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	mvm->error_event_table[0] = le32_to_cpu(lmac1->error_event_table_ptr);
	if (lmac2)
		mvm->error_event_table[1] =
			le32_to_cpu(lmac2->error_event_table_ptr);
	mvm->log_event_table = le32_to_cpu(lmac1->log_event_table_ptr);
	mvm->sf_space.addr = le32_to_cpu(lmac1->st_fwrd_addr);
	mvm->sf_space.size = le32_to_cpu(lmac1->st_fwrd_size);
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	mvm->umac_error_event_table = le32_to_cpu(umac->error_info_addr);
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	alive_data->scd_base_addr = le32_to_cpu(lmac1->scd_base_ptr);
	alive_data->valid = status == IWL_ALIVE_STATUS_OK;
	if (mvm->umac_error_event_table)
		mvm->support_umac_log = true;
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	IWL_DEBUG_FW(mvm,
		     "Alive ucode status 0x%04x revision 0x%01X 0x%01X\n",
		     status, lmac1->ver_type, lmac1->ver_subtype);
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	if (lmac2)
		IWL_DEBUG_FW(mvm, "Alive ucode CDB\n");
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	IWL_DEBUG_FW(mvm,
		     "UMAC version: Major - 0x%x, Minor - 0x%x\n",
		     le32_to_cpu(umac->umac_major),
		     le32_to_cpu(umac->umac_minor));
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	return true;
}

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static bool iwl_wait_init_complete(struct iwl_notif_wait_data *notif_wait,
				   struct iwl_rx_packet *pkt, void *data)
{
	WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);

	return true;
}

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static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
				  struct iwl_rx_packet *pkt, void *data)
{
	struct iwl_phy_db *phy_db = data;

	if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
		WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
		return true;
	}

554
	WARN_ON(iwl_phy_db_set_section(phy_db, pkt));
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Johannes Berg 已提交
555 556 557 558

	return false;
}

559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600
static int iwl_mvm_init_paging(struct iwl_mvm *mvm)
{
	const struct fw_img *fw = &mvm->fw->img[mvm->cur_ucode];
	int ret;

	/*
	 * Configure and operate fw paging mechanism.
	 * The driver configures the paging flow only once.
	 * The CPU2 paging image is included in the IWL_UCODE_INIT image.
	 */
	if (!fw->paging_mem_size)
		return 0;

	/*
	 * When dma is not enabled, the driver needs to copy / write
	 * the downloaded / uploaded page to / from the smem.
	 * This gets the location of the place were the pages are
	 * stored.
	 */
	if (!is_device_dma_capable(mvm->trans->dev)) {
		ret = iwl_trans_get_paging_item(mvm);
		if (ret) {
			IWL_ERR(mvm, "failed to get FW paging item\n");
			return ret;
		}
	}

	ret = iwl_save_fw_paging(mvm, fw);
	if (ret) {
		IWL_ERR(mvm, "failed to save the FW paging image\n");
		return ret;
	}

	ret = iwl_send_paging_cmd(mvm, fw);
	if (ret) {
		IWL_ERR(mvm, "failed to send the paging cmd\n");
		iwl_free_fw_paging(mvm);
		return ret;
	}

	return 0;
}
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static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
					 enum iwl_ucode_type ucode_type)
{
	struct iwl_notification_wait alive_wait;
	struct iwl_mvm_alive_data alive_data;
	const struct fw_img *fw;
	int ret, i;
	enum iwl_ucode_type old_type = mvm->cur_ucode;
609
	static const u16 alive_cmd[] = { MVM_ALIVE };
610
	struct iwl_sf_region st_fwrd_space;
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Johannes Berg 已提交
611

612
	if (ucode_type == IWL_UCODE_REGULAR &&
613 614 615
	    iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE) &&
	    !(fw_has_capa(&mvm->fw->ucode_capa,
			  IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED)))
616
		fw = iwl_get_ucode_image(mvm->fw, IWL_UCODE_REGULAR_USNIFFER);
617
	else
618
		fw = iwl_get_ucode_image(mvm->fw, ucode_type);
619
	if (WARN_ON(!fw))
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Johannes Berg 已提交
620
		return -EINVAL;
621 622
	mvm->cur_ucode = ucode_type;
	mvm->ucode_loaded = false;
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623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641

	iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
				   alive_cmd, ARRAY_SIZE(alive_cmd),
				   iwl_alive_fn, &alive_data);

	ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
	if (ret) {
		mvm->cur_ucode = old_type;
		iwl_remove_notification(&mvm->notif_wait, &alive_wait);
		return ret;
	}

	/*
	 * Some things may run in the background now, but we
	 * just wait for the ALIVE notification here.
	 */
	ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
				    MVM_UCODE_ALIVE_TIMEOUT);
	if (ret) {
642 643 644 645 646 647 648 649
		struct iwl_trans *trans = mvm->trans;

		if (trans->cfg->gen2)
			IWL_ERR(mvm,
				"SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
				iwl_read_prph(trans, UMAG_SB_CPU_1_STATUS),
				iwl_read_prph(trans, UMAG_SB_CPU_2_STATUS));
		else if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
650 651
			IWL_ERR(mvm,
				"SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
652 653
				iwl_read_prph(trans, SB_CPU_1_STATUS),
				iwl_read_prph(trans, SB_CPU_2_STATUS));
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		mvm->cur_ucode = old_type;
		return ret;
	}

	if (!alive_data.valid) {
		IWL_ERR(mvm, "Loaded ucode is not valid!\n");
		mvm->cur_ucode = old_type;
		return -EIO;
	}

664 665 666 667 668 669 670
	/*
	 * update the sdio allocation according to the pointer we get in the
	 * alive notification.
	 */
	st_fwrd_space.addr = mvm->sf_space.addr;
	st_fwrd_space.size = mvm->sf_space.size;
	ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
671 672 673 674
	if (ret) {
		IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
		return ret;
	}
675

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676 677 678 679 680 681 682 683 684 685 686
	iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);

	/*
	 * Note: all the queues are enabled as part of the interface
	 * initialization, but in firmware restart scenarios they
	 * could be stopped, so wake them up. In firmware restart,
	 * mac80211 will have the queues stopped as well until the
	 * reconfiguration completes. During normal startup, they
	 * will be empty.
	 */

687
	memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
688 689 690 691
	if (iwl_mvm_is_dqa_supported(mvm))
		mvm->queue_info[IWL_MVM_DQA_CMD_QUEUE].hw_queue_refcount = 1;
	else
		mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
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Johannes Berg 已提交
692

693 694
	for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
		atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
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	mvm->ucode_loaded = true;

	return 0;
}

701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
static int iwl_run_unified_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
{
	struct iwl_notification_wait init_wait;
	struct iwl_nvm_access_complete_cmd nvm_complete = {};
	struct iwl_init_extended_cfg_cmd init_cfg = {
		.init_flags = cpu_to_le32(BIT(IWL_INIT_NVM)),
	};
	static const u16 init_complete[] = {
		INIT_COMPLETE_NOTIF,
	};
	int ret;

	lockdep_assert_held(&mvm->mutex);

	iwl_init_notification_wait(&mvm->notif_wait,
				   &init_wait,
				   init_complete,
				   ARRAY_SIZE(init_complete),
				   iwl_wait_init_complete,
				   NULL);

	/* Will also start the device */
	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
	if (ret) {
		IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
		goto error;
	}

	/* Send init config command to mark that we are sending NVM access
	 * commands
	 */
	ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(SYSTEM_GROUP,
						INIT_EXTENDED_CFG_CMD), 0,
				   sizeof(init_cfg), &init_cfg);
	if (ret) {
		IWL_ERR(mvm, "Failed to run init config command: %d\n",
			ret);
		goto error;
	}

	/* Read the NVM only at driver load time, no need to do this twice */
	if (read_nvm) {
		/* Read nvm */
		ret = iwl_nvm_init(mvm, true);
		if (ret) {
			IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
			goto error;
		}
	}

	/* In case we read the NVM from external file, load it to the NIC */
	if (mvm->nvm_file_name)
		iwl_mvm_load_nvm_to_nic(mvm);

	ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
	if (WARN_ON(ret))
		goto error;

	ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(REGULATORY_AND_NVM_GROUP,
						NVM_ACCESS_COMPLETE), 0,
				   sizeof(nvm_complete), &nvm_complete);
	if (ret) {
		IWL_ERR(mvm, "Failed to run complete NVM access: %d\n",
			ret);
		goto error;
	}

	/* We wait for the INIT complete notification */
	return iwl_wait_notification(&mvm->notif_wait, &init_wait,
				     MVM_UCODE_ALIVE_TIMEOUT);

error:
	iwl_remove_notification(&mvm->notif_wait, &init_wait);
	return ret;
}

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static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
{
	struct iwl_phy_cfg_cmd phy_cfg_cmd;
	enum iwl_ucode_type ucode_type = mvm->cur_ucode;

	/* Set parameters */
783
	phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
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	phy_cfg_cmd.calib_control.event_trigger =
		mvm->fw->default_calib[ucode_type].event_trigger;
	phy_cfg_cmd.calib_control.flow_trigger =
		mvm->fw->default_calib[ucode_type].flow_trigger;

	IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
		       phy_cfg_cmd.phy_cfg);

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	return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
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				    sizeof(phy_cfg_cmd), &phy_cfg_cmd);
}

int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
{
	struct iwl_notification_wait calib_wait;
799
	static const u16 init_complete[] = {
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		INIT_COMPLETE_NOTIF,
		CALIB_RES_NOTIF_PHY_DB
	};
	int ret;

805 806 807
	if (iwl_mvm_has_new_tx_api(mvm))
		return iwl_run_unified_mvm_ucode(mvm, true);

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	lockdep_assert_held(&mvm->mutex);

810
	if (WARN_ON_ONCE(mvm->calibrating))
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		return 0;

	iwl_init_notification_wait(&mvm->notif_wait,
				   &calib_wait,
				   init_complete,
				   ARRAY_SIZE(init_complete),
				   iwl_wait_phy_db_entry,
				   mvm->phy_db);

	/* Will also start the device */
	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
	if (ret) {
		IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
		goto error;
	}

827
	ret = iwl_send_bt_init_conf(mvm);
828 829 830
	if (ret)
		goto error;

831
	/* Read the NVM only at driver load time, no need to do this twice */
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Johannes Berg 已提交
832 833
	if (read_nvm) {
		/* Read nvm */
834
		ret = iwl_nvm_init(mvm, true);
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835 836 837 838 839 840
		if (ret) {
			IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
			goto error;
		}
	}

841
	/* In case we read the NVM from external file, load it to the NIC */
842
	if (mvm->nvm_file_name)
843 844
		iwl_mvm_load_nvm_to_nic(mvm);

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845 846 847
	ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
	WARN_ON(ret);

848 849 850 851
	/*
	 * abort after reading the nvm in case RF Kill is on, we will complete
	 * the init seq later when RF kill will switch to off
	 */
852
	if (iwl_mvm_is_radio_hw_killed(mvm)) {
853 854 855
		IWL_DEBUG_RF_KILL(mvm,
				  "jump over all phy activities due to RF kill\n");
		iwl_remove_notification(&mvm->notif_wait, &calib_wait);
856 857
		ret = 1;
		goto out;
858 859
	}

860 861
	mvm->calibrating = true;

862
	/* Send TX valid antennas before triggering calibrations */
863
	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
864 865 866
	if (ret)
		goto error;

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	/*
	 * Send phy configurations command to init uCode
	 * to start the 16.0 uCode init image internal calibrations.
	 */
	ret = iwl_send_phy_cfg_cmd(mvm);
	if (ret) {
		IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
			ret);
		goto error;
	}

	/*
	 * Some things may run in the background now, but we
	 * just wait for the calibration complete notification.
	 */
	ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
			MVM_UCODE_CALIB_TIMEOUT);
884

885
	if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
886 887 888
		IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
		ret = 1;
	}
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889 890 891 892 893
	goto out;

error:
	iwl_remove_notification(&mvm->notif_wait, &calib_wait);
out:
894
	mvm->calibrating = false;
895
	if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
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Johannes Berg 已提交
896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913
		/* we want to debug INIT and we have no NVM - fake */
		mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
					sizeof(struct ieee80211_channel) +
					sizeof(struct ieee80211_rate),
					GFP_KERNEL);
		if (!mvm->nvm_data)
			return -ENOMEM;
		mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
		mvm->nvm_data->bands[0].n_channels = 1;
		mvm->nvm_data->bands[0].n_bitrates = 1;
		mvm->nvm_data->bands[0].bitrates =
			(void *)mvm->nvm_data->channels + 1;
		mvm->nvm_data->bands[0].bitrates->hw_value = 10;
	}

	return ret;
}

914 915
static void iwl_mvm_parse_shared_mem_a000(struct iwl_mvm *mvm,
					  struct iwl_rx_packet *pkt)
916
{
917
	struct iwl_shared_mem_cfg *mem_cfg = (void *)pkt->data;
918 919
	int i, lmac;
	int lmac_num = le32_to_cpu(mem_cfg->lmac_num);
920

921 922
	if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem)))
		return;
923

924 925 926 927
	mvm->smem_cfg.num_lmacs = lmac_num;
	mvm->smem_cfg.num_txfifo_entries =
		ARRAY_SIZE(mem_cfg->lmac_smem[0].txfifo_size);
	mvm->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size);
928

929 930 931 932 933 934 935 936 937 938
	for (lmac = 0; lmac < lmac_num; lmac++) {
		struct iwl_shared_mem_lmac_cfg *lmac_cfg =
			&mem_cfg->lmac_smem[lmac];

		for (i = 0; i < ARRAY_SIZE(lmac_cfg->txfifo_size); i++)
			mvm->smem_cfg.lmac[lmac].txfifo_size[i] =
				le32_to_cpu(lmac_cfg->txfifo_size[i]);
		mvm->smem_cfg.lmac[lmac].rxfifo1_size =
			le32_to_cpu(lmac_cfg->rxfifo1_size);
	}
939
}
940

941 942 943 944 945 946
static void iwl_mvm_parse_shared_mem(struct iwl_mvm *mvm,
				     struct iwl_rx_packet *pkt)
{
	struct iwl_shared_mem_cfg_v1 *mem_cfg = (void *)pkt->data;
	int i;

947 948 949
	mvm->smem_cfg.num_lmacs = 1;

	mvm->smem_cfg.num_txfifo_entries = ARRAY_SIZE(mem_cfg->txfifo_size);
950
	for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++)
951
		mvm->smem_cfg.lmac[0].txfifo_size[i] =
952
			le32_to_cpu(mem_cfg->txfifo_size[i]);
953 954 955 956

	mvm->smem_cfg.lmac[0].rxfifo1_size =
		le32_to_cpu(mem_cfg->rxfifo_size[0]);
	mvm->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo_size[1]);
957

958
	/* new API has more data, from rxfifo_addr field and on */
959 960
	if (fw_has_capa(&mvm->fw->ucode_capa,
			IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
961
		BUILD_BUG_ON(sizeof(mvm->smem_cfg.internal_txfifo_size) !=
962 963 964
			     sizeof(mem_cfg->internal_txfifo_size));

		for (i = 0;
965
		     i < ARRAY_SIZE(mvm->smem_cfg.internal_txfifo_size);
966
		     i++)
967
			mvm->smem_cfg.internal_txfifo_size[i] =
968 969
				le32_to_cpu(mem_cfg->internal_txfifo_size[i]);
	}
970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
}

static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
{
	struct iwl_host_cmd cmd = {
		.flags = CMD_WANT_SKB,
		.data = { NULL, },
		.len = { 0, },
	};
	struct iwl_rx_packet *pkt;

	lockdep_assert_held(&mvm->mutex);

	if (fw_has_capa(&mvm->fw->ucode_capa,
			IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
		cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0);
	else
		cmd.id = SHARED_MEM_CFG;

	if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
		return;

	pkt = cmd.resp_pkt;
	if (iwl_mvm_has_new_tx_api(mvm))
		iwl_mvm_parse_shared_mem_a000(mvm, pkt);
	else
		iwl_mvm_parse_shared_mem(mvm, pkt);
997

998 999 1000 1001 1002
	IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");

	iwl_free_resp(&cmd);
}

1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
{
	struct iwl_ltr_config_cmd cmd = {
		.flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
	};

	if (!mvm->trans->ltr_enabled)
		return 0;

	return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
				    sizeof(cmd), &cmd);
}

1016 1017
#ifdef CONFIG_ACPI
#define ACPI_WRDS_METHOD		"WRDS"
1018
#define ACPI_EWRD_METHOD		"EWRD"
1019
#define ACPI_WGDS_METHOD		"WGDS"
1020
#define ACPI_WIFI_DOMAIN		(0x07)
1021
#define ACPI_WRDS_WIFI_DATA_SIZE	(IWL_MVM_SAR_TABLE_SIZE + 2)
1022 1023
#define ACPI_EWRD_WIFI_DATA_SIZE	((IWL_MVM_SAR_PROFILE_NUM - 1) * \
					 IWL_MVM_SAR_TABLE_SIZE + 3)
1024 1025 1026
#define ACPI_WGDS_WIFI_DATA_SIZE	18
#define ACPI_WGDS_NUM_BANDS		2
#define ACPI_WGDS_TABLE_SIZE		3
1027 1028 1029 1030 1031 1032 1033

static int iwl_mvm_sar_set_profile(struct iwl_mvm *mvm,
				   union acpi_object *table,
				   struct iwl_mvm_sar_profile *profile,
				   bool enabled)
{
	int i;
1034

1035
	profile->enabled = enabled;
1036

1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
	for (i = 0; i < IWL_MVM_SAR_TABLE_SIZE; i++) {
		if ((table[i].type != ACPI_TYPE_INTEGER) ||
		    (table[i].integer.value > U8_MAX))
			return -EINVAL;

		profile->table[i] = table[i].integer.value;
	}

	return 0;
}

static union acpi_object *iwl_mvm_sar_find_wifi_pkg(struct iwl_mvm *mvm,
						    union acpi_object *data,
						    int data_size)
1051
{
1052 1053
	int i;
	union acpi_object *wifi_pkg;
1054

1055 1056
	/*
	 * We need at least two packages, one for the revision and one
1057 1058
	 * for the data itself.  Also check that the revision is valid
	 * (i.e. it is an integer set to 0).
1059 1060 1061 1062 1063 1064 1065
	 */
	if (data->type != ACPI_TYPE_PACKAGE ||
	    data->package.count < 2 ||
	    data->package.elements[0].type != ACPI_TYPE_INTEGER ||
	    data->package.elements[0].integer.value != 0) {
		IWL_DEBUG_RADIO(mvm, "Unsupported packages structure\n");
		return ERR_PTR(-EINVAL);
1066 1067 1068
	}

	/* loop through all the packages to find the one for WiFi */
1069
	for (i = 1; i < data->package.count; i++) {
1070 1071
		union acpi_object *domain;

1072
		wifi_pkg = &data->package.elements[i];
1073 1074 1075

		/* Skip anything that is not a package with the right
		 * amount of elements (i.e. domain_type,
1076
		 * enabled/disabled plus the actual data size.
1077
		 */
1078 1079
		if (wifi_pkg->type != ACPI_TYPE_PACKAGE ||
		    wifi_pkg->package.count != data_size)
1080 1081
			continue;

1082
		domain = &wifi_pkg->package.elements[0];
1083
		if (domain->type == ACPI_TYPE_INTEGER &&
1084
		    domain->integer.value == ACPI_WIFI_DOMAIN)
1085 1086
			break;

1087
		wifi_pkg = NULL;
1088 1089
	}

1090 1091
	if (!wifi_pkg)
		return ERR_PTR(-ENOENT);
1092

1093
	return wifi_pkg;
1094 1095
}

1096
static int iwl_mvm_sar_get_wrds_table(struct iwl_mvm *mvm)
1097
{
1098
	union acpi_object *wifi_pkg, *table;
1099 1100 1101 1102
	acpi_handle root_handle;
	acpi_handle handle;
	struct acpi_buffer wrds = {ACPI_ALLOCATE_BUFFER, NULL};
	acpi_status status;
1103
	bool enabled;
1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127
	int ret;

	root_handle = ACPI_HANDLE(mvm->dev);
	if (!root_handle) {
		IWL_DEBUG_RADIO(mvm,
				"Could not retrieve root port ACPI handle\n");
		return -ENOENT;
	}

	/* Get the method's handle */
	status = acpi_get_handle(root_handle, (acpi_string)ACPI_WRDS_METHOD,
				 &handle);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "WRDS method not found\n");
		return -ENOENT;
	}

	/* Call WRDS with no arguments */
	status = acpi_evaluate_object(handle, NULL, NULL, &wrds);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "WRDS invocation failed (0x%x)\n", status);
		return -ENOENT;
	}

1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140
	wifi_pkg = iwl_mvm_sar_find_wifi_pkg(mvm, wrds.pointer,
					     ACPI_WRDS_WIFI_DATA_SIZE);
	if (IS_ERR(wifi_pkg)) {
		ret = PTR_ERR(wifi_pkg);
		goto out_free;
	}

	if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
		ret = -EINVAL;
		goto out_free;
	}

	enabled = !!(wifi_pkg->package.elements[1].integer.value);
1141

1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152
	/* position of the actual table */
	table = &wifi_pkg->package.elements[2];

	/* The profile from WRDS is officially profile 1, but goes
	 * into sar_profiles[0] (because we don't have a profile 0).
	 */
	ret = iwl_mvm_sar_set_profile(mvm, table, &mvm->sar_profiles[0],
				      enabled);

out_free:
	kfree(wrds.pointer);
1153 1154 1155
	return ret;
}

1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm)
{
	union acpi_object *wifi_pkg;
	acpi_handle root_handle;
	acpi_handle handle;
	struct acpi_buffer ewrd = {ACPI_ALLOCATE_BUFFER, NULL};
	acpi_status status;
	bool enabled;
	int i, n_profiles, ret;

	root_handle = ACPI_HANDLE(mvm->dev);
	if (!root_handle) {
		IWL_DEBUG_RADIO(mvm,
				"Could not retrieve root port ACPI handle\n");
		return -ENOENT;
	}

	/* Get the method's handle */
	status = acpi_get_handle(root_handle, (acpi_string)ACPI_EWRD_METHOD,
				 &handle);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "EWRD method not found\n");
		return -ENOENT;
	}

	/* Call EWRD with no arguments */
	status = acpi_evaluate_object(handle, NULL, NULL, &ewrd);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "EWRD invocation failed (0x%x)\n", status);
		return -ENOENT;
	}

	wifi_pkg = iwl_mvm_sar_find_wifi_pkg(mvm, ewrd.pointer,
					     ACPI_EWRD_WIFI_DATA_SIZE);
	if (IS_ERR(wifi_pkg)) {
		ret = PTR_ERR(wifi_pkg);
		goto out_free;
	}

	if ((wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) ||
	    (wifi_pkg->package.elements[2].type != ACPI_TYPE_INTEGER)) {
		ret = -EINVAL;
		goto out_free;
	}

	enabled = !!(wifi_pkg->package.elements[1].integer.value);
	n_profiles = wifi_pkg->package.elements[2].integer.value;

1204 1205 1206 1207 1208 1209
	/* in case of BIOS bug */
	if (n_profiles <= 0) {
		ret = -EINVAL;
		goto out_free;
	}

1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
	for (i = 0; i < n_profiles; i++) {
		/* the tables start at element 3 */
		static int pos = 3;

		/* The EWRD profiles officially go from 2 to 4, but we
		 * save them in sar_profiles[1-3] (because we don't
		 * have profile 0).  So in the array we start from 1.
		 */
		ret = iwl_mvm_sar_set_profile(mvm,
					      &wifi_pkg->package.elements[pos],
					      &mvm->sar_profiles[i + 1],
					      enabled);
		if (ret < 0)
			break;

		/* go to the next table */
		pos += IWL_MVM_SAR_TABLE_SIZE;
	}

out_free:
	kfree(ewrd.pointer);
	return ret;
}

1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
static int iwl_mvm_sar_get_wgds_table(struct iwl_mvm *mvm,
				      struct iwl_mvm_geo_table *geo_table)
{
	union acpi_object *wifi_pkg;
	acpi_handle root_handle;
	acpi_handle handle;
	struct acpi_buffer wgds = {ACPI_ALLOCATE_BUFFER, NULL};
	acpi_status status;
	int i, ret;

	root_handle = ACPI_HANDLE(mvm->dev);
	if (!root_handle) {
		IWL_DEBUG_RADIO(mvm,
				"Could not retrieve root port ACPI handle\n");
		return -ENOENT;
	}

	/* Get the method's handle */
	status = acpi_get_handle(root_handle, (acpi_string)ACPI_WGDS_METHOD,
				 &handle);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "WGDS method not found\n");
		return -ENOENT;
	}

	/* Call WGDS with no arguments */
	status = acpi_evaluate_object(handle, NULL, NULL, &wgds);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_RADIO(mvm, "WGDS invocation failed (0x%x)\n", status);
		return -ENOENT;
	}

	wifi_pkg = iwl_mvm_sar_find_wifi_pkg(mvm, wgds.pointer,
					     ACPI_WGDS_WIFI_DATA_SIZE);
	if (IS_ERR(wifi_pkg)) {
		ret = PTR_ERR(wifi_pkg);
		goto out_free;
	}

	for (i = 0; i < ACPI_WGDS_WIFI_DATA_SIZE; i++) {
		union acpi_object *entry;

		entry = &wifi_pkg->package.elements[i + 1];
		if ((entry->type != ACPI_TYPE_INTEGER) ||
		    (entry->integer.value > U8_MAX))
			return -EINVAL;

		geo_table->values[i] = entry->integer.value;
	}
	ret = 0;
out_free:
	kfree(wgds.pointer);
	return ret;
}

1289
int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b)
1290 1291
{
	struct iwl_dev_tx_power_cmd cmd = {
1292
		.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS),
1293
	};
1294 1295
	int i, j, idx;
	int profs[IWL_NUM_CHAIN_LIMITS] = { prof_a, prof_b };
1296
	int len = sizeof(cmd);
1297

1298 1299 1300 1301
	BUILD_BUG_ON(IWL_NUM_CHAIN_LIMITS < 2);
	BUILD_BUG_ON(IWL_NUM_CHAIN_LIMITS * IWL_NUM_SUB_BANDS !=
		     IWL_MVM_SAR_TABLE_SIZE);

1302 1303 1304
	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
		len = sizeof(cmd.v3);

1305 1306
	for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
		struct iwl_mvm_sar_profile *prof;
1307

1308 1309 1310
		/* don't allow SAR to be disabled (profile 0 means disable) */
		if (profs[i] == 0)
			return -EPERM;
1311

1312 1313 1314
		/* we are off by one, so allow up to IWL_MVM_SAR_PROFILE_NUM */
		if (profs[i] > IWL_MVM_SAR_PROFILE_NUM)
			return -EINVAL;
1315

1316 1317 1318 1319 1320 1321 1322 1323 1324 1325
		/* profiles go from 1 to 4, so decrement to access the array */
		prof = &mvm->sar_profiles[profs[i] - 1];

		/* if the profile is disabled, do nothing */
		if (!prof->enabled) {
			IWL_DEBUG_RADIO(mvm, "SAR profile %d is disabled.\n",
					profs[i]);
			/* if one of the profiles is disabled, we fail all */
			return -ENOENT;
		}
1326 1327 1328 1329

		IWL_DEBUG_RADIO(mvm, "  Chain[%d]:\n", i);
		for (j = 0; j < IWL_NUM_SUB_BANDS; j++) {
			idx = (i * IWL_NUM_SUB_BANDS) + j;
1330
			cmd.v3.per_chain_restriction[i][j] =
1331
				cpu_to_le16(prof->table[idx]);
1332
			IWL_DEBUG_RADIO(mvm, "    Band[%d] = %d * .125dBm\n",
1333
					j, prof->table[idx]);
1334 1335 1336
		}
	}

1337 1338 1339 1340 1341
	IWL_DEBUG_RADIO(mvm, "Sending REDUCE_TX_POWER_CMD per chain\n");

	return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
}

1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385
static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm)
{
	struct iwl_mvm_geo_table geo_table;
	struct iwl_geo_tx_power_profiles_cmd cmd = {
		.ops = cpu_to_le32(IWL_PER_CHAIN_OFFSET_SET_TABLES),
	};
	int ret, i, j, idx;
	u16 cmd_wide_id =  WIDE_ID(PHY_OPS_GROUP, GEO_TX_POWER_LIMIT);

	ret = iwl_mvm_sar_get_wgds_table(mvm, &geo_table);
	if (ret < 0) {
		IWL_DEBUG_RADIO(mvm,
				"Geo SAR BIOS table invalid or unavailable. (%d)\n",
				ret);
		/* we don't fail if the table is not available */
		return 0;
	}

	IWL_DEBUG_RADIO(mvm, "Sending GEO_TX_POWER_LIMIT\n");

	BUILD_BUG_ON(IWL_NUM_GEO_PROFILES * ACPI_WGDS_NUM_BANDS *
		     ACPI_WGDS_TABLE_SIZE !=  ACPI_WGDS_WIFI_DATA_SIZE);

	for (i = 0; i < IWL_NUM_GEO_PROFILES; i++) {
		struct iwl_per_chain_offset *chain =
			(struct iwl_per_chain_offset *)&cmd.table[i];

		for (j = 0; j < ACPI_WGDS_NUM_BANDS; j++) {
			u8 *value;

			idx = i * ACPI_WGDS_NUM_BANDS * ACPI_WGDS_TABLE_SIZE +
				j * ACPI_WGDS_TABLE_SIZE;
			value = &geo_table.values[idx];
			chain[j].max_tx_power = cpu_to_le16(value[0]);
			chain[j].chain_a = value[1];
			chain[j].chain_b = value[2];
			IWL_DEBUG_RADIO(mvm,
					"SAR geographic profile[%d] Band[%d]: chain A = %d chain B = %d max_tx_power = %d\n",
					i, j, value[1], value[2], value[0]);
		}
	}
	return iwl_mvm_send_cmd_pdu(mvm, cmd_wide_id, 0, sizeof(cmd), &cmd);
}

1386 1387 1388 1389 1390 1391 1392 1393 1394 1395
#else /* CONFIG_ACPI */
static int iwl_mvm_sar_get_wrds_table(struct iwl_mvm *mvm)
{
	return -ENOENT;
}

static int iwl_mvm_sar_get_ewrd_table(struct iwl_mvm *mvm)
{
	return -ENOENT;
}
1396 1397 1398 1399 1400

static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm)
{
	return 0;
}
1401 1402
#endif /* CONFIG_ACPI */

1403 1404 1405 1406 1407 1408 1409
static int iwl_mvm_sar_init(struct iwl_mvm *mvm)
{
	int ret;

	ret = iwl_mvm_sar_get_wrds_table(mvm);
	if (ret < 0) {
		IWL_DEBUG_RADIO(mvm,
1410
				"WRDS SAR BIOS table invalid or unavailable. (%d)\n",
1411
				ret);
1412
		/* if not available, don't fail and don't bother with EWRD */
1413 1414 1415
		return 0;
	}

1416 1417 1418 1419 1420 1421 1422
	ret = iwl_mvm_sar_get_ewrd_table(mvm);
	/* if EWRD is not available, we can still use WRDS, so don't fail */
	if (ret < 0)
		IWL_DEBUG_RADIO(mvm,
				"EWRD SAR BIOS table invalid or unavailable. (%d)\n",
				ret);

1423 1424 1425 1426 1427 1428
	/* choose profile 1 (WRDS) as default for both chains */
	ret = iwl_mvm_sar_select_profile(mvm, 1, 1);

	/* if we don't have profile 0 from BIOS, just skip it */
	if (ret == -ENOENT)
		return 0;
1429 1430 1431 1432

	return ret;
}

1433
static int iwl_mvm_load_rt_fw(struct iwl_mvm *mvm)
J
Johannes Berg 已提交
1434
{
1435
	int ret;
J
Johannes Berg 已提交
1436

1437 1438
	if (iwl_mvm_has_new_tx_api(mvm))
		return iwl_run_unified_mvm_ucode(mvm, false);
J
Johannes Berg 已提交
1439

1440
	ret = iwl_run_init_mvm_ucode(mvm, false);
1441 1442 1443 1444 1445

	if (iwlmvm_mod_params.init_dbg)
		return 0;

	if (ret) {
1446 1447 1448 1449
		IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
		/* this can't happen */
		if (WARN_ON(ret > 0))
			ret = -ERFKILL;
1450
		return ret;
1451
	}
J
Johannes Berg 已提交
1452

1453 1454 1455 1456 1457 1458 1459 1460
	/*
	 * Stop and start the transport without entering low power
	 * mode. This will save the state of other components on the
	 * device that are triggered by the INIT firwmare (MFUART).
	 */
	_iwl_trans_stop_device(mvm->trans, false);
	ret = _iwl_trans_start_hw(mvm->trans, false);
	if (ret)
1461
		return ret;
J
Johannes Berg 已提交
1462 1463

	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482
	if (ret)
		return ret;

	return iwl_mvm_init_paging(mvm);
}

int iwl_mvm_up(struct iwl_mvm *mvm)
{
	int ret, i;
	struct ieee80211_channel *chan;
	struct cfg80211_chan_def chandef;

	lockdep_assert_held(&mvm->mutex);

	ret = iwl_trans_start_hw(mvm->trans);
	if (ret)
		return ret;

	ret = iwl_mvm_load_rt_fw(mvm);
J
Johannes Berg 已提交
1483 1484 1485 1486 1487
	if (ret) {
		IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
		goto error;
	}

1488
	iwl_mvm_get_shared_mem_conf(mvm);
1489

1490 1491 1492 1493
	ret = iwl_mvm_sf_update(mvm, NULL, false);
	if (ret)
		IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");

1494
	mvm->fw_dbg_conf = FW_DBG_INVALID;
1495 1496 1497
	/* if we have a destination, assume EARLY START */
	if (mvm->fw->dbg_dest_tlv)
		mvm->fw_dbg_conf = FW_DBG_START_FROM_ALIVE;
1498
	iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_START_FROM_ALIVE);
1499

1500
	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
J
Johannes Berg 已提交
1501 1502 1503
	if (ret)
		goto error;

1504 1505 1506 1507
	ret = iwl_send_bt_init_conf(mvm);
	if (ret)
		goto error;

J
Johannes Berg 已提交
1508
	/* Send phy db control command and then phy db calibration*/
1509 1510 1511 1512
	if (!iwl_mvm_has_new_tx_api(mvm)) {
		ret = iwl_send_phy_db_data(mvm->phy_db);
		if (ret)
			goto error;
J
Johannes Berg 已提交
1513

1514 1515 1516 1517
		ret = iwl_send_phy_cfg_cmd(mvm);
		if (ret)
			goto error;
	}
J
Johannes Berg 已提交
1518

1519
	/* Init RSS configuration */
1520 1521
	/* TODO - remove a000 disablement when we have RXQ config API */
	if (iwl_mvm_has_new_rx_api(mvm) && !iwl_mvm_has_new_tx_api(mvm)) {
1522 1523 1524 1525 1526 1527 1528 1529
		ret = iwl_send_rss_cfg_cmd(mvm);
		if (ret) {
			IWL_ERR(mvm, "Failed to configure RSS queues: %d\n",
				ret);
			goto error;
		}
	}

J
Johannes Berg 已提交
1530
	/* init the fw <-> mac80211 STA mapping */
1531
	for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++)
J
Johannes Berg 已提交
1532 1533
		RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);

1534
	mvm->tdls_cs.peer.sta_id = IWL_MVM_INVALID_STA;
1535

1536 1537 1538
	/* reset quota debouncing buffer - 0xff will yield invalid data */
	memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));

1539 1540 1541 1542 1543 1544 1545 1546 1547
	/* Enable DQA-mode if required */
	if (iwl_mvm_is_dqa_supported(mvm)) {
		ret = iwl_mvm_send_dqa_cmd(mvm);
		if (ret)
			goto error;
	} else {
		IWL_DEBUG_FW(mvm, "Working in non-DQA mode\n");
	}

J
Johannes Berg 已提交
1548 1549 1550 1551 1552
	/* Add auxiliary station for scanning */
	ret = iwl_mvm_add_aux_sta(mvm);
	if (ret)
		goto error;

1553
	/* Add all the PHY contexts */
1554
	chan = &mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[0];
1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566
	cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
	for (i = 0; i < NUM_PHY_CTX; i++) {
		/*
		 * The channel used here isn't relevant as it's
		 * going to be overwritten in the other flows.
		 * For now use the first channel we have.
		 */
		ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
					   &chandef, 1, 1);
		if (ret)
			goto error;
	}
J
Johannes Berg 已提交
1567

1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578
#ifdef CONFIG_THERMAL
	if (iwl_mvm_is_tt_in_fw(mvm)) {
		/* in order to give the responsibility of ct-kill and
		 * TX backoff to FW we need to send empty temperature reporting
		 * cmd during init time
		 */
		iwl_mvm_send_temp_report_ths_cmd(mvm);
	} else {
		/* Initialize tx backoffs to the minimal possible */
		iwl_mvm_tt_tx_backoff(mvm, 0);
	}
1579 1580

	/* TODO: read the budget from BIOS / Platform NVM */
1581
	if (iwl_mvm_is_ctdp_supported(mvm) && mvm->cooling_dev.cur_state > 0) {
1582 1583
		ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START,
					   mvm->cooling_dev.cur_state);
1584 1585 1586
		if (ret)
			goto error;
	}
1587
#else
1588 1589
	/* Initialize tx backoffs to the minimal possible */
	iwl_mvm_tt_tx_backoff(mvm, 0);
1590
#endif
1591

1592
	WARN_ON(iwl_mvm_config_ltr(mvm));
E
Emmanuel Grumbach 已提交
1593

1594
	ret = iwl_mvm_power_update_device(mvm);
1595 1596 1597
	if (ret)
		goto error;

1598 1599 1600 1601 1602 1603 1604 1605 1606
	/*
	 * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
	 * anyway, so don't init MCC.
	 */
	if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) {
		ret = iwl_mvm_init_mcc(mvm);
		if (ret)
			goto error;
	}
1607

1608
	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1609
		mvm->scan_type = IWL_SCAN_TYPE_NOT_SET;
1610 1611 1612 1613 1614
		ret = iwl_mvm_config_scan(mvm);
		if (ret)
			goto error;
	}

1615 1616 1617 1618
	/* allow FW/transport low power modes if not during restart */
	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
		iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);

1619 1620 1621 1622
	ret = iwl_mvm_sar_init(mvm);
	if (ret)
		goto error;

1623 1624 1625 1626
	ret = iwl_mvm_sar_geo_init(mvm);
	if (ret)
		goto error;

1627
	IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
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Johannes Berg 已提交
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	return 0;
 error:
1630
	iwl_mvm_stop_device(mvm);
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	return ret;
}

int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
{
	int ret, i;

	lockdep_assert_held(&mvm->mutex);

	ret = iwl_trans_start_hw(mvm->trans);
	if (ret)
		return ret;

	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
	if (ret) {
		IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
		goto error;
	}

1650
	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
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	if (ret)
		goto error;

	/* Send phy db control command and then phy db calibration*/
	ret = iwl_send_phy_db_data(mvm->phy_db);
	if (ret)
		goto error;

	ret = iwl_send_phy_cfg_cmd(mvm);
	if (ret)
		goto error;

	/* init the fw <-> mac80211 STA mapping */
1664
	for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++)
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		RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);

	/* Add auxiliary station for scanning */
	ret = iwl_mvm_add_aux_sta(mvm);
	if (ret)
		goto error;

	return 0;
 error:
1674
	iwl_mvm_stop_device(mvm);
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	return ret;
}

1678 1679
void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
				 struct iwl_rx_cmd_buffer *rxb)
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{
	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
	u32 flags = le32_to_cpu(card_state_notif->flags);

	IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
			  (flags & HW_CARD_DISABLED) ? "Kill" : "On",
			  (flags & SW_CARD_DISABLED) ? "Kill" : "On",
			  (flags & CT_KILL_CARD_DISABLED) ?
			  "Reached" : "Not reached");
}

1692 1693
void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
			     struct iwl_rx_cmd_buffer *rxb)
1694 1695 1696 1697
{
	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	struct iwl_mfuart_load_notif *mfuart_notif = (void *)pkt->data;

1698 1699 1700 1701 1702 1703 1704
	IWL_DEBUG_INFO(mvm,
		       "MFUART: installed ver: 0x%08x, external ver: 0x%08x, status: 0x%08x, duration: 0x%08x\n",
		       le32_to_cpu(mfuart_notif->installed_ver),
		       le32_to_cpu(mfuart_notif->external_ver),
		       le32_to_cpu(mfuart_notif->status),
		       le32_to_cpu(mfuart_notif->duration));

1705 1706
	if (iwl_rx_packet_payload_len(pkt) == sizeof(*mfuart_notif))
		IWL_DEBUG_INFO(mvm,
1707
			       "MFUART: image size: 0x%08x\n",
1708
			       le32_to_cpu(mfuart_notif->image_size));
1709
}