[linux.git] / drivers / net / wireless / iwlwifi / iwl-agn-ucode.c

/******************************************************************************
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 *
 * 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 LICENSE.GPL.
 *
 * Contact Information:
 *  Intel Linux Wireless <[email protected]>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>

#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
#include "iwl-agn-hw.h"
#include "iwl-agn.h"
#include "iwl-agn-calib.h"
#include "iwl-trans.h"

static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
	{COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
	 0, COEX_UNASSOC_IDLE_FLAGS},
	{COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
	 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
	{COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
	 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
	{COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
	 0, COEX_CALIBRATION_FLAGS},
	{COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
	 0, COEX_PERIODIC_CALIBRATION_FLAGS},
	{COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
	 0, COEX_CONNECTION_ESTAB_FLAGS},
	{COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
	 0, COEX_ASSOCIATED_IDLE_FLAGS},
	{COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
	 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
	{COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
	 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
	{COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
	 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
	{COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
	{COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
	{COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
	 0, COEX_STAND_ALONE_DEBUG_FLAGS},
	{COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
	 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
	{COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
	{COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
};

/*
 * ucode
 */
static int iwlagn_load_section(struct iwl_priv *priv, const char *name,
				struct fw_desc *image, u32 dst_addr)
{
	dma_addr_t phy_addr = image->p_addr;
	u32 byte_cnt = image->len;
	int ret;

	priv->ucode_write_complete = 0;

	iwl_write_direct32(priv,
		FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
		FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);

	iwl_write_direct32(priv,
		FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);

	iwl_write_direct32(priv,
		FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
		phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);

	iwl_write_direct32(priv,
		FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
		(iwl_get_dma_hi_addr(phy_addr)
			<< FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);

	iwl_write_direct32(priv,
		FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
		1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
		1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
		FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);

	iwl_write_direct32(priv,
		FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
		FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE	|
		FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE	|
		FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);

	IWL_DEBUG_FW(priv, "%s uCode section being loaded...\n", name);
	ret = wait_event_interruptible_timeout(priv->wait_command_queue,
					priv->ucode_write_complete, 5 * HZ);
	if (ret == -ERESTARTSYS) {
		IWL_ERR(priv, "Could not load the %s uCode section due "
			"to interrupt\n", name);
		return ret;
	}
	if (!ret) {
		IWL_ERR(priv, "Could not load the %s uCode section\n",
			name);
		return -ETIMEDOUT;
	}

	return 0;
}

static int iwlagn_load_given_ucode(struct iwl_priv *priv,
				   struct fw_img *image)
{
	int ret = 0;

	ret = iwlagn_load_section(priv, "INST", &image->code,
				   IWLAGN_RTC_INST_LOWER_BOUND);
	if (ret)
		return ret;

	return iwlagn_load_section(priv, "DATA", &image->data,
				    IWLAGN_RTC_DATA_LOWER_BOUND);
}

/*
 *  Calibration
 */
static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
{
	struct iwl_calib_xtal_freq_cmd cmd;
	__le16 *xtal_calib =
		(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);

	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
	cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
	cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
	return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
			     (u8 *)&cmd, sizeof(cmd));
}

static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
{
	struct iwl_calib_temperature_offset_cmd cmd;
	__le16 *offset_calib =
		(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_TEMPERATURE);

	memset(&cmd, 0, sizeof(cmd));
	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
	memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(offset_calib));
	if (!(cmd.radio_sensor_offset))
		cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;

	IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
			le16_to_cpu(cmd.radio_sensor_offset));
	return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
			     (u8 *)&cmd, sizeof(cmd));
}

static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
{
	struct iwl_calib_cfg_cmd calib_cfg_cmd;
	struct iwl_host_cmd cmd = {
		.id = CALIBRATION_CFG_CMD,
		.len = { sizeof(struct iwl_calib_cfg_cmd), },
		.data = { &calib_cfg_cmd, },
	};

	memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
	calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
	calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
	calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
	calib_cfg_cmd.ucd_calib_cfg.flags =
		IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;

	return trans_send_cmd(&priv->trans, &cmd);
}

void iwlagn_rx_calib_result(struct iwl_priv *priv,
			     struct iwl_rx_mem_buffer *rxb)
{
	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
	int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
	int index;

	/* reduce the size of the length field itself */
	len -= 4;

	/* Define the order in which the results will be sent to the runtime
	 * uCode. iwl_send_calib_results sends them in a row according to
	 * their index. We sort them here
	 */
	switch (hdr->op_code) {
	case IWL_PHY_CALIBRATE_DC_CMD:
		index = IWL_CALIB_DC;
		break;
	case IWL_PHY_CALIBRATE_LO_CMD:
		index = IWL_CALIB_LO;
		break;
	case IWL_PHY_CALIBRATE_TX_IQ_CMD:
		index = IWL_CALIB_TX_IQ;
		break;
	case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
		index = IWL_CALIB_TX_IQ_PERD;
		break;
	case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
		index = IWL_CALIB_BASE_BAND;
		break;
	default:
		IWL_ERR(priv, "Unknown calibration notification %d\n",
			  hdr->op_code);
		return;
	}
	iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
}

int iwlagn_init_alive_start(struct iwl_priv *priv)
{
	int ret;

	if (priv->cfg->bt_params &&
	    priv->cfg->bt_params->advanced_bt_coexist) {
		/*
		 * Tell uCode we are ready to perform calibration
		 * need to perform this before any calibration
		 * no need to close the envlope since we are going
		 * to load the runtime uCode later.
		 */
		ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
			BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
		if (ret)
			return ret;

	}

	ret = iwlagn_send_calib_cfg(priv);
	if (ret)
		return ret;

	/**
	 * temperature offset calibration is only needed for runtime ucode,
	 * so prepare the value now.
	 */
	if (priv->cfg->need_temp_offset_calib)
		return iwlagn_set_temperature_offset_calib(priv);

	return 0;
}

static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
{
	struct iwl_wimax_coex_cmd coex_cmd;

	if (priv->cfg->base_params->support_wimax_coexist) {
		/* UnMask wake up src at associated sleep */
		coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;

		/* UnMask wake up src at unassociated sleep */
		coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
		memcpy(coex_cmd.sta_prio, cu_priorities,
			sizeof(struct iwl_wimax_coex_event_entry) *
			 COEX_NUM_OF_EVENTS);

		/* enabling the coexistence feature */
		coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;

		/* enabling the priorities tables */
		coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
	} else {
		/* coexistence is disabled */
		memset(&coex_cmd, 0, sizeof(coex_cmd));
	}
	return trans_send_cmd_pdu(&priv->trans,
				COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
				sizeof(coex_cmd), &coex_cmd);
}

static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
		(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	0, 0, 0, 0, 0, 0, 0
};

void iwlagn_send_prio_tbl(struct iwl_priv *priv)
{
	struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;

	memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
		sizeof(iwlagn_bt_prio_tbl));
	if (trans_send_cmd_pdu(&priv->trans,
				REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
				sizeof(prio_tbl_cmd), &prio_tbl_cmd))
		IWL_ERR(priv, "failed to send BT prio tbl command\n");
}

int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
{
	struct iwl_bt_coex_prot_env_cmd env_cmd;
	int ret;

	env_cmd.action = action;
	env_cmd.type = type;
	ret = trans_send_cmd_pdu(&priv->trans,
			       REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
			       sizeof(env_cmd), &env_cmd);
	if (ret)
		IWL_ERR(priv, "failed to send BT env command\n");
	return ret;
}


static int iwlagn_alive_notify(struct iwl_priv *priv)
{
	int ret;

	trans_tx_start(&priv->trans);

	ret = iwlagn_send_wimax_coex(priv);
	if (ret)
		return ret;

	ret = iwlagn_set_Xtal_calib(priv);
	if (ret)
		return ret;

	return iwl_send_calib_results(priv);
}


/**
 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
 *   using sample data 100 bytes apart.  If these sample points are good,
 *   it's a pretty good bet that everything between them is good, too.
 */
static int iwl_verify_inst_sparse(struct iwl_priv *priv,
				      struct fw_desc *fw_desc)
{
	__le32 *image = (__le32 *)fw_desc->v_addr;
	u32 len = fw_desc->len;
	u32 val;
	u32 i;

	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);

	for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
		/* read data comes through single port, auto-incr addr */
		/* NOTE: Use the debugless read so we don't flood kernel log
		 * if IWL_DL_IO is set */
		iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
			i + IWLAGN_RTC_INST_LOWER_BOUND);
		val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
		if (val != le32_to_cpu(*image))
			return -EIO;
	}

	return 0;
}

static void iwl_print_mismatch_inst(struct iwl_priv *priv,
				    struct fw_desc *fw_desc)
{
	__le32 *image = (__le32 *)fw_desc->v_addr;
	u32 len = fw_desc->len;
	u32 val;
	u32 offs;
	int errors = 0;

	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);

	iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
			   IWLAGN_RTC_INST_LOWER_BOUND);

	for (offs = 0;
	     offs < len && errors < 20;
	     offs += sizeof(u32), image++) {
		/* read data comes through single port, auto-incr addr */
		val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
		if (val != le32_to_cpu(*image)) {
			IWL_ERR(priv, "uCode INST section at "
				"offset 0x%x, is 0x%x, s/b 0x%x\n",
				offs, val, le32_to_cpu(*image));
			errors++;
		}
	}
}

/**
 * iwl_verify_ucode - determine which instruction image is in SRAM,
 *    and verify its contents
 */
static int iwl_verify_ucode(struct iwl_priv *priv, struct fw_img *img)
{
	if (!iwl_verify_inst_sparse(priv, &img->code)) {
		IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
		return 0;
	}

	IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");

	iwl_print_mismatch_inst(priv, &img->code);
	return -EIO;
}

struct iwlagn_alive_data {
	bool valid;
	u8 subtype;
};

static void iwlagn_alive_fn(struct iwl_priv *priv,
			    struct iwl_rx_packet *pkt,
			    void *data)
{
	struct iwlagn_alive_data *alive_data = data;
	struct iwl_alive_resp *palive;

	palive = &pkt->u.alive_frame;

	IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
		       "0x%01X 0x%01X\n",
		       palive->is_valid, palive->ver_type,
		       palive->ver_subtype);

	priv->device_pointers.error_event_table =
		le32_to_cpu(palive->error_event_table_ptr);
	priv->device_pointers.log_event_table =
		le32_to_cpu(palive->log_event_table_ptr);

	alive_data->subtype = palive->ver_subtype;
	alive_data->valid = palive->is_valid == UCODE_VALID_OK;
}

#define UCODE_ALIVE_TIMEOUT	HZ
#define UCODE_CALIB_TIMEOUT	(2*HZ)

int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
				 struct fw_img *image,
				 enum iwlagn_ucode_type ucode_type)
{
	struct iwl_notification_wait alive_wait;
	struct iwlagn_alive_data alive_data;
	int ret;
	enum iwlagn_ucode_type old_type;

	ret = trans_start_device(&priv->trans);
	if (ret)
		return ret;

	iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
				      iwlagn_alive_fn, &alive_data);

	old_type = priv->ucode_type;
	priv->ucode_type = ucode_type;

	ret = iwlagn_load_given_ucode(priv, image);
	if (ret) {
		priv->ucode_type = old_type;
		iwlagn_remove_notification(priv, &alive_wait);
		return ret;
	}

	trans_kick_nic(&priv->trans);

	/*
	 * Some things may run in the background now, but we
	 * just wait for the ALIVE notification here.
	 */
	ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
	if (ret) {
		priv->ucode_type = old_type;
		return ret;
	}

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

	/*
	 * This step takes a long time (60-80ms!!) and
	 * WoWLAN image should be loaded quickly, so
	 * skip it for WoWLAN.
	 */
	if (ucode_type != IWL_UCODE_WOWLAN) {
		ret = iwl_verify_ucode(priv, image);
		if (ret) {
			priv->ucode_type = old_type;
			return ret;
		}

		/* delay a bit to give rfkill time to run */
		msleep(5);
	}

	ret = iwlagn_alive_notify(priv);
	if (ret) {
		IWL_WARN(priv,
			"Could not complete ALIVE transition: %d\n", ret);
		priv->ucode_type = old_type;
		return ret;
	}

	return 0;
}

int iwlagn_run_init_ucode(struct iwl_priv *priv)
{
	struct iwl_notification_wait calib_wait;
	int ret;

	lockdep_assert_held(&priv->shrd->mutex);

	/* No init ucode required? Curious, but maybe ok */
	if (!priv->ucode_init.code.len)
		return 0;

	if (priv->ucode_type != IWL_UCODE_NONE)
		return 0;

	iwlagn_init_notification_wait(priv, &calib_wait,
				      CALIBRATION_COMPLETE_NOTIFICATION,
				      NULL, NULL);

	/* Will also start the device */
	ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_init,
					   IWL_UCODE_INIT);
	if (ret)
		goto error;

	ret = iwlagn_init_alive_start(priv);
	if (ret)
		goto error;

	/*
	 * Some things may run in the background now, but we
	 * just wait for the calibration complete notification.
	 */
	ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);

	goto out;

 error:
	iwlagn_remove_notification(priv, &calib_wait);
 out:
	/* Whatever happened, stop the device */
	trans_stop_device(&priv->trans);
	return ret;
}
Commit	Line	Data
792bc3cb WYG	1	/******************************************************************************
	2	*
	3	* GPL LICENSE SUMMARY
	4	*
901069c7	5	* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
792bc3cb WYG	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
	19	* USA
	20	*
	21	* The full GNU General Public License is included in this distribution
	22	* in the file called LICENSE.GPL.
	23	*
	24	* Contact Information:
	25	* Intel Linux Wireless <[email protected]>
	26	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	27	*
	28	*****************************************************************************/
	29
	30	#include <linux/kernel.h>
	31	#include <linux/module.h>
	32	#include <linux/init.h>
81b8176e	33	#include <linux/sched.h>
792bc3cb WYG	34
	35	#include "iwl-dev.h"
	36	#include "iwl-core.h"
81b8176e	37	#include "iwl-io.h"
741a6266	38	#include "iwl-helpers.h"
19e6cda0	39	#include "iwl-agn-hw.h"
741a6266	40	#include "iwl-agn.h"
0de76736	41	#include "iwl-agn-calib.h"
bdfbf092	42	#include "iwl-trans.h"
741a6266	43
f4012413 WYG	44	static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
	45	{COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
	46	0, COEX_UNASSOC_IDLE_FLAGS},
	47	{COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
	48	0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
	49	{COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
	50	0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
	51	{COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
	52	0, COEX_CALIBRATION_FLAGS},
	53	{COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
	54	0, COEX_PERIODIC_CALIBRATION_FLAGS},
	55	{COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
	56	0, COEX_CONNECTION_ESTAB_FLAGS},
	57	{COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
	58	0, COEX_ASSOCIATED_IDLE_FLAGS},
	59	{COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
	60	0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
	61	{COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
	62	0, COEX_ASSOC_AUTO_SCAN_FLAGS},
	63	{COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
	64	0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
	65	{COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
	66	{COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
	67	{COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
	68	0, COEX_STAND_ALONE_DEBUG_FLAGS},
	69	{COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
	70	0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
	71	{COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
	72	{COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
	73	};
	74
81b8176e WYG	75	/*
	76	* ucode
	77	*/
	78	static int iwlagn_load_section(struct iwl_priv priv, const char name,
	79	struct fw_desc *image, u32 dst_addr)
	80	{
	81	dma_addr_t phy_addr = image->p_addr;
	82	u32 byte_cnt = image->len;
	83	int ret;
	84
	85	priv->ucode_write_complete = 0;
	86
	87	iwl_write_direct32(priv,
	88	FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
	89	FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
	90
	91	iwl_write_direct32(priv,
	92	FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
	93
	94	iwl_write_direct32(priv,
	95	FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
	96	phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
	97
	98	iwl_write_direct32(priv,
	99	FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
	100	(iwl_get_dma_hi_addr(phy_addr)
	101	<< FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) \| byte_cnt);
	102
	103	iwl_write_direct32(priv,
	104	FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
	105	1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM \|
	106	1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX \|
	107	FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
	108
	109	iwl_write_direct32(priv,
	110	FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
	111	FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE \|
	112	FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE \|
	113	FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
	114
06bb8358	115	IWL_DEBUG_FW(priv, "%s uCode section being loaded...\n", name);
81b8176e WYG	116	ret = wait_event_interruptible_timeout(priv->wait_command_queue,
	117	priv->ucode_write_complete, 5 * HZ);
	118	if (ret == -ERESTARTSYS) {
	119	IWL_ERR(priv, "Could not load the %s uCode section due "
	120	"to interrupt\n", name);
	121	return ret;
	122	}
	123	if (!ret) {
	124	IWL_ERR(priv, "Could not load the %s uCode section\n",
	125	name);
	126	return -ETIMEDOUT;
	127	}
	128
	129	return 0;
	130	}
	131
	132	static int iwlagn_load_given_ucode(struct iwl_priv *priv,
dbf28e21	133	struct fw_img *image)
81b8176e WYG	134	{
	135	int ret = 0;
	136
dbf28e21	137	ret = iwlagn_load_section(priv, "INST", &image->code,
19e6cda0	138	IWLAGN_RTC_INST_LOWER_BOUND);
81b8176e WYG	139	if (ret)
	140	return ret;
	141
dbf28e21	142	return iwlagn_load_section(priv, "DATA", &image->data,
19e6cda0	143	IWLAGN_RTC_DATA_LOWER_BOUND);
81b8176e WYG	144	}
81b8176e WYG	145
741a6266 WYG	146	/*
	147	* Calibration
	148	*/
	149	static int iwlagn_set_Xtal_calib(struct iwl_priv *priv)
	150	{
	151	struct iwl_calib_xtal_freq_cmd cmd;
	152	__le16 *xtal_calib =
7944f8e4	153	(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_XTAL);
741a6266	154
1f8bf039	155	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
741a6266 WYG	156	cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
	157	cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
	158	return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
	159	(u8 *)&cmd, sizeof(cmd));
	160	}
	161
bf53f939 SZ	162	static int iwlagn_set_temperature_offset_calib(struct iwl_priv *priv)
	163	{
	164	struct iwl_calib_temperature_offset_cmd cmd;
	165	__le16 *offset_calib =
8d8854d9	166	(__le16 *)iwl_eeprom_query_addr(priv, EEPROM_TEMPERATURE);
1f8bf039 WYG	167
	168	memset(&cmd, 0, sizeof(cmd));
	169	iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
2e277996	170	memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(offset_calib));
bf53f939 SZ	171	if (!(cmd.radio_sensor_offset))
bf53f939 SZ	172	cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
1f8bf039	173
bf53f939	174	IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n",
2e277996	175	le16_to_cpu(cmd.radio_sensor_offset));
bf53f939 SZ	176	return iwl_calib_set(&priv->calib_results[IWL_CALIB_TEMP_OFFSET],
	177	(u8 *)&cmd, sizeof(cmd));
	178	}
	179
741a6266 WYG	180	static int iwlagn_send_calib_cfg(struct iwl_priv *priv)
	181	{
	182	struct iwl_calib_cfg_cmd calib_cfg_cmd;
	183	struct iwl_host_cmd cmd = {
	184	.id = CALIBRATION_CFG_CMD,
3fa50738 JB	185	.len = { sizeof(struct iwl_calib_cfg_cmd), },
3fa50738 JB	186	.data = { &calib_cfg_cmd, },
741a6266 WYG	187	};
	188
	189	memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
	190	calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
	191	calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
	192	calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
df2a4dc8 WYG	193	calib_cfg_cmd.ucd_calib_cfg.flags =
df2a4dc8 WYG	194	IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
741a6266	195
41c50542	196	return trans_send_cmd(&priv->trans, &cmd);
741a6266 WYG	197	}
	198
	199	void iwlagn_rx_calib_result(struct iwl_priv *priv,
	200	struct iwl_rx_mem_buffer *rxb)
	201	{
	202	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	203	struct iwl_calib_hdr hdr = (struct iwl_calib_hdr )pkt->u.raw;
	204	int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
	205	int index;
	206
	207	/* reduce the size of the length field itself */
	208	len -= 4;
	209
	210	/* Define the order in which the results will be sent to the runtime
	211	* uCode. iwl_send_calib_results sends them in a row according to
	212	* their index. We sort them here
	213	*/
	214	switch (hdr->op_code) {
	215	case IWL_PHY_CALIBRATE_DC_CMD:
	216	index = IWL_CALIB_DC;
	217	break;
	218	case IWL_PHY_CALIBRATE_LO_CMD:
	219	index = IWL_CALIB_LO;
	220	break;
	221	case IWL_PHY_CALIBRATE_TX_IQ_CMD:
	222	index = IWL_CALIB_TX_IQ;
	223	break;
	224	case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
	225	index = IWL_CALIB_TX_IQ_PERD;
	226	break;
	227	case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
	228	index = IWL_CALIB_BASE_BAND;
	229	break;
	230	default:
	231	IWL_ERR(priv, "Unknown calibration notification %d\n",
	232	hdr->op_code);
	233	return;
	234	}
	235	iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
	236	}
	237
4613e72d	238	int iwlagn_init_alive_start(struct iwl_priv *priv)
741a6266	239	{
ca7966c8	240	int ret;
741a6266	241
7cb1b088 WYG	242	if (priv->cfg->bt_params &&
7cb1b088 WYG	243	priv->cfg->bt_params->advanced_bt_coexist) {
f7322f8f WYG	244	/*
	245	* Tell uCode we are ready to perform calibration
	246	* need to perform this before any calibration
	247	* no need to close the envlope since we are going
	248	* to load the runtime uCode later.
	249	*/
ca7966c8	250	ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
f7322f8f	251	BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
ca7966c8 JB	252	if (ret)
ca7966c8 JB	253	return ret;
f7322f8f WYG	254
f7322f8f WYG	255	}
ca7966c8 JB	256
	257	ret = iwlagn_send_calib_cfg(priv);
	258	if (ret)
	259	return ret;
bf53f939 SZ	260
	261	/**
	262	* temperature offset calibration is only needed for runtime ucode,
	263	* so prepare the value now.
	264	*/
	265	if (priv->cfg->need_temp_offset_calib)
ca7966c8	266	return iwlagn_set_temperature_offset_calib(priv);
741a6266	267
ca7966c8	268	return 0;
741a6266 WYG	269	}
741a6266 WYG	270
f4012413 WYG	271	static int iwlagn_send_wimax_coex(struct iwl_priv *priv)
	272	{
	273	struct iwl_wimax_coex_cmd coex_cmd;
	274
7cb1b088	275	if (priv->cfg->base_params->support_wimax_coexist) {
f4012413 WYG	276	/* UnMask wake up src at associated sleep */
	277	coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
	278
	279	/* UnMask wake up src at unassociated sleep */
	280	coex_cmd.flags \|= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
	281	memcpy(coex_cmd.sta_prio, cu_priorities,
	282	sizeof(struct iwl_wimax_coex_event_entry) *
	283	COEX_NUM_OF_EVENTS);
	284
	285	/* enabling the coexistence feature */
	286	coex_cmd.flags \|= COEX_FLAGS_COEX_ENABLE_MSK;
	287
	288	/* enabling the priorities tables */
	289	coex_cmd.flags \|= COEX_FLAGS_STA_TABLE_VALID_MSK;
	290	} else {
	291	/* coexistence is disabled */
	292	memset(&coex_cmd, 0, sizeof(coex_cmd));
	293	}
41c50542	294	return trans_send_cmd_pdu(&priv->trans,
e419d62d	295	COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
f4012413 WYG	296	sizeof(coex_cmd), &coex_cmd);
	297	}
	298
aeb4a2ee WYG	299	static const u8 iwlagn_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
	300	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	301	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	302	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	303	(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	304	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	305	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	306	((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	307	(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	308	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	309	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	310	((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	311	(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	312	((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	313	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	314	((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	315	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	316	((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) \|
	317	(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
	318	0, 0, 0, 0, 0, 0, 0
	319	};
	320
f7322f8f	321	void iwlagn_send_prio_tbl(struct iwl_priv *priv)
aeb4a2ee WYG	322	{
	323	struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
	324
	325	memcpy(prio_tbl_cmd.prio_tbl, iwlagn_bt_prio_tbl,
	326	sizeof(iwlagn_bt_prio_tbl));
41c50542	327	if (trans_send_cmd_pdu(&priv->trans,
e419d62d	328	REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
aeb4a2ee WYG	329	sizeof(prio_tbl_cmd), &prio_tbl_cmd))
	330	IWL_ERR(priv, "failed to send BT prio tbl command\n");
	331	}
	332
ca7966c8	333	int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
aeb4a2ee WYG	334	{
aeb4a2ee WYG	335	struct iwl_bt_coex_prot_env_cmd env_cmd;
ca7966c8	336	int ret;
aeb4a2ee WYG	337
	338	env_cmd.action = action;
	339	env_cmd.type = type;
41c50542	340	ret = trans_send_cmd_pdu(&priv->trans,
e419d62d	341	REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
ca7966c8 JB	342	sizeof(env_cmd), &env_cmd);
ca7966c8 JB	343	if (ret)
aeb4a2ee	344	IWL_ERR(priv, "failed to send BT env command\n");
ca7966c8	345	return ret;
aeb4a2ee WYG	346	}
	347
	348
ca7966c8	349	static int iwlagn_alive_notify(struct iwl_priv *priv)
741a6266	350	{
7415952f	351	int ret;
741a6266	352
41c50542	353	trans_tx_start(&priv->trans);
e7cad69c	354
7415952f WYG	355	ret = iwlagn_send_wimax_coex(priv);
	356	if (ret)
	357	return ret;
	358
	359	ret = iwlagn_set_Xtal_calib(priv);
	360	if (ret)
	361	return ret;
741a6266	362
36127db0	363	return iwl_send_calib_results(priv);
741a6266	364	}
db41dd27 WYG	365
	366
	367	/**
	368	* iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
	369	* using sample data 100 bytes apart. If these sample points are good,
	370	* it's a pretty good bet that everything between them is good, too.
	371	*/
b39488a9	372	static int iwl_verify_inst_sparse(struct iwl_priv *priv,
35b1d92d	373	struct fw_desc *fw_desc)
db41dd27	374	{
35b1d92d JB	375	__le32 image = (__le32 )fw_desc->v_addr;
35b1d92d JB	376	u32 len = fw_desc->len;
db41dd27	377	u32 val;
db41dd27 WYG	378	u32 i;
db41dd27 WYG	379
06bb8358	380	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
db41dd27 WYG	381
	382	for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
	383	/* read data comes through single port, auto-incr addr */
	384	/* NOTE: Use the debugless read so we don't flood kernel log
	385	* if IWL_DL_IO is set */
	386	iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
	387	i + IWLAGN_RTC_INST_LOWER_BOUND);
02a7fa00	388	val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
fb66216f JB	389	if (val != le32_to_cpu(*image))
fb66216f JB	390	return -EIO;
db41dd27 WYG	391	}
db41dd27 WYG	392
fb66216f	393	return 0;
db41dd27 WYG	394	}
db41dd27 WYG	395
fb66216f	396	static void iwl_print_mismatch_inst(struct iwl_priv *priv,
35b1d92d	397	struct fw_desc *fw_desc)
db41dd27	398	{
35b1d92d JB	399	__le32 image = (__le32 )fw_desc->v_addr;
35b1d92d JB	400	u32 len = fw_desc->len;
db41dd27	401	u32 val;
fb66216f JB	402	u32 offs;
fb66216f JB	403	int errors = 0;
db41dd27	404
06bb8358	405	IWL_DEBUG_FW(priv, "ucode inst image size is %u\n", len);
db41dd27 WYG	406
	407	iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
	408	IWLAGN_RTC_INST_LOWER_BOUND);
	409
fb66216f JB	410	for (offs = 0;
	411	offs < len && errors < 20;
	412	offs += sizeof(u32), image++) {
db41dd27	413	/* read data comes through single port, auto-incr addr */
02a7fa00	414	val = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
db41dd27	415	if (val != le32_to_cpu(*image)) {
fb66216f JB	416	IWL_ERR(priv, "uCode INST section at "
	417	"offset 0x%x, is 0x%x, s/b 0x%x\n",
	418	offs, val, le32_to_cpu(*image));
	419	errors++;
db41dd27 WYG	420	}
db41dd27 WYG	421	}
db41dd27 WYG	422	}
	423
	424	/**
	425	* iwl_verify_ucode - determine which instruction image is in SRAM,
	426	* and verify its contents
	427	*/
dbf28e21	428	static int iwl_verify_ucode(struct iwl_priv priv, struct fw_img img)
db41dd27	429	{
b39488a9	430	if (!iwl_verify_inst_sparse(priv, &img->code)) {
06bb8358	431	IWL_DEBUG_FW(priv, "uCode is good in inst SRAM\n");
db41dd27 WYG	432	return 0;
	433	}
	434
35b1d92d	435	IWL_ERR(priv, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
fb66216f	436
dbf28e21	437	iwl_print_mismatch_inst(priv, &img->code);
fb66216f	438	return -EIO;
db41dd27	439	}
ca7966c8 JB	440
	441	struct iwlagn_alive_data {
	442	bool valid;
	443	u8 subtype;
	444	};
	445
	446	static void iwlagn_alive_fn(struct iwl_priv *priv,
	447	struct iwl_rx_packet *pkt,
	448	void *data)
	449	{
	450	struct iwlagn_alive_data *alive_data = data;
	451	struct iwl_alive_resp *palive;
	452
	453	palive = &pkt->u.alive_frame;
	454
06bb8358	455	IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision "
ca7966c8 JB	456	"0x%01X 0x%01X\n",
	457	palive->is_valid, palive->ver_type,
	458	palive->ver_subtype);
	459
	460	priv->device_pointers.error_event_table =
	461	le32_to_cpu(palive->error_event_table_ptr);
	462	priv->device_pointers.log_event_table =
	463	le32_to_cpu(palive->log_event_table_ptr);
	464
	465	alive_data->subtype = palive->ver_subtype;
	466	alive_data->valid = palive->is_valid == UCODE_VALID_OK;
	467	}
	468
	469	#define UCODE_ALIVE_TIMEOUT HZ
	470	#define UCODE_CALIB_TIMEOUT (2*HZ)
	471
	472	int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
dbf28e21	473	struct fw_img *image,
872907bb	474	enum iwlagn_ucode_type ucode_type)
ca7966c8 JB	475	{
	476	struct iwl_notification_wait alive_wait;
	477	struct iwlagn_alive_data alive_data;
	478	int ret;
872907bb	479	enum iwlagn_ucode_type old_type;
ca7966c8	480
41c50542	481	ret = trans_start_device(&priv->trans);
ca7966c8 JB	482	if (ret)
	483	return ret;
	484
	485	iwlagn_init_notification_wait(priv, &alive_wait, REPLY_ALIVE,
	486	iwlagn_alive_fn, &alive_data);
	487
	488	old_type = priv->ucode_type;
872907bb	489	priv->ucode_type = ucode_type;
ca7966c8	490
dbf28e21	491	ret = iwlagn_load_given_ucode(priv, image);
ca7966c8 JB	492	if (ret) {
	493	priv->ucode_type = old_type;
	494	iwlagn_remove_notification(priv, &alive_wait);
	495	return ret;
	496	}
	497
41c50542	498	trans_kick_nic(&priv->trans);
ca7966c8 JB	499
	500	/*
	501	* Some things may run in the background now, but we
	502	* just wait for the ALIVE notification here.
	503	*/
	504	ret = iwlagn_wait_notification(priv, &alive_wait, UCODE_ALIVE_TIMEOUT);
	505	if (ret) {
	506	priv->ucode_type = old_type;
	507	return ret;
	508	}
	509
	510	if (!alive_data.valid) {
	511	IWL_ERR(priv, "Loaded ucode is not valid!\n");
	512	priv->ucode_type = old_type;
	513	return -EIO;
	514	}
	515
c8ac61cf JB	516	/*
	517	* This step takes a long time (60-80ms!!) and
	518	* WoWLAN image should be loaded quickly, so
	519	* skip it for WoWLAN.
	520	*/
	521	if (ucode_type != IWL_UCODE_WOWLAN) {
	522	ret = iwl_verify_ucode(priv, image);
	523	if (ret) {
	524	priv->ucode_type = old_type;
	525	return ret;
	526	}
ca7966c8	527
c8ac61cf JB	528	/* delay a bit to give rfkill time to run */
	529	msleep(5);
	530	}
ca7966c8 JB	531
	532	ret = iwlagn_alive_notify(priv);
	533	if (ret) {
	534	IWL_WARN(priv,
	535	"Could not complete ALIVE transition: %d\n", ret);
	536	priv->ucode_type = old_type;
	537	return ret;
	538	}
	539
	540	return 0;
	541	}
	542
	543	int iwlagn_run_init_ucode(struct iwl_priv *priv)
	544	{
	545	struct iwl_notification_wait calib_wait;
	546	int ret;
	547
6ac2f839	548	lockdep_assert_held(&priv->shrd->mutex);
ca7966c8 JB	549
ca7966c8 JB	550	/* No init ucode required? Curious, but maybe ok */
dbf28e21	551	if (!priv->ucode_init.code.len)
ca7966c8 JB	552	return 0;
ca7966c8 JB	553
872907bb	554	if (priv->ucode_type != IWL_UCODE_NONE)
ca7966c8 JB	555	return 0;
	556
	557	iwlagn_init_notification_wait(priv, &calib_wait,
	558	CALIBRATION_COMPLETE_NOTIFICATION,
	559	NULL, NULL);
	560
	561	/* Will also start the device */
	562	ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_init,
872907bb	563	IWL_UCODE_INIT);
ca7966c8 JB	564	if (ret)
	565	goto error;
	566
	567	ret = iwlagn_init_alive_start(priv);
	568	if (ret)
	569	goto error;
	570
	571	/*
	572	* Some things may run in the background now, but we
	573	* just wait for the calibration complete notification.
	574	*/
	575	ret = iwlagn_wait_notification(priv, &calib_wait, UCODE_CALIB_TIMEOUT);
	576
	577	goto out;
	578
	579	error:
	580	iwlagn_remove_notification(priv, &calib_wait);
	581	out:
	582	/* Whatever happened, stop the device */
41c50542	583	trans_stop_device(&priv->trans);
ca7966c8 JB	584	return ret;
ca7966c8 JB	585	}