drivers/soc/samsung/exynos-bcm_dbg.c

/*
 * Copyright (c) 2018 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/uaccess.h>
#include <linux/clk.h>
#include <linux/suspend.h>
#include <linux/memblock.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/of_reserved_mem.h>
#include <linux/debug-snapshot.h>
#include <linux/sched/clock.h>

#include <asm/map.h>
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>

#ifdef	CONFIG_EXYNOS_ADV_TRACER
#include <soc/samsung/exynos-adv-tracer-ipc.h>
#endif
#include <soc/samsung/exynos-bcm_dbg.h>
#include <soc/samsung/exynos-bcm_dbg-dt.h>
#include <soc/samsung/exynos-bcm_dbg-dump.h>
#include <soc/samsung/exynos-pd.h>
#include <soc/samsung/cal-if.h>
#ifdef	CONFIG_EXYNOS_ITMON
#include <soc/samsung/exynos-itmon.h>
#endif
#ifdef CONFIG_UH_RKP
struct exynos_bcm_dbg_data *bcm_dbg_data;
EXPORT_SYMBOL(bcm_dbg_data);
#else
static struct exynos_bcm_dbg_data *bcm_dbg_data;
#endif
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
static void *bcm_addr;
static struct bin_system_func *bin_func;
static struct os_system_func os_func;
typedef struct bin_system_func*(*start_up_func_t)(void **func);
#endif

#if defined(CONFIG_EXYNOS_ADV_TRACER) || defined(CONFIG_EXYNOS_BCM_DBG_GNR)
static enum exynos_bcm_err_code exynos_bcm_dbg_ipc_err_handle(unsigned int cmd)
{
	enum exynos_bcm_err_code err_code;

	err_code = BCM_CMD_GET(cmd, BCM_ERR_MASK, BCM_ERR_SHIFT);
	if (err_code)
		BCM_ERR("%s: BCM IPC error return(%u)\n", __func__, err_code);

	return err_code;
}
#endif

static int exynos_bcm_ip_validate(unsigned int ip_range, unsigned int ip_index,
					unsigned int bcm_ip_nr)
{
	if (ip_range >= BCM_RANGE_MAX) {
		BCM_ERR("%s: Invalid ip range(%u)\n", __func__, ip_range);
		BCM_ERR("%s: BCM_EACH(%d), BCM_ALL(%d)\n",
				__func__, BCM_EACH, BCM_ALL);
		return -EINVAL;
	}

	if (ip_index >= bcm_ip_nr) {
		BCM_ERR("%s: Invalid ip index(%u), ip_max_nr(%u)\n",
			__func__, ip_index, bcm_ip_nr - 1);
		return -EINVAL;
	}

	return 0;
}

static int exynos_bcm_is_running(unsigned int run_state)
{
	if (run_state == BCM_RUN) {
		BCM_ERR("%s: do not set when bcm is running(%u)\n",
				__func__, run_state);
		return -EBUSY;
	}

	return 0;
}

static int __exynos_bcm_dbg_ipc_send_data(enum exynos_bcm_dbg_ipc_type ipc_type,
				struct exynos_bcm_dbg_data *data,
				unsigned int *cmd)
{
	int i, ret = 0;
#if defined(CONFIG_EXYNOS_ADV_TRACER)
	struct adv_tracer_ipc_cmd config;
#elif defined(CONFIG_EXYNOS_BCM_DBG_GNR)
	struct cmd_data config;
#endif
	enum exynos_bcm_err_code ipc_err;
	unsigned int *bcm_cmd;

	if ((ipc_type < IPC_BCM_DBG_EVENT) ||
		(ipc_type >= IPC_BCM_DBG_MAX)) {
		BCM_ERR("%s: Invalid IPC Type: %d\n", __func__, ipc_type);
		ret = -EINVAL;
		return ret;
	}

	bcm_cmd = cmd;
#if defined(CONFIG_EXYNOS_ADV_TRACER)
	config.cmd_raw.cmd = BCM_CMD_SET(ipc_type, BCM_CMD_ID_MASK, BCM_CMD_ID_SHIFT);
	memcpy(&config.buffer[1], bcm_cmd, sizeof(unsigned int) * CMD_DATA_MAX);
	ret = adv_tracer_ipc_send_data_polling(data->ipc_ch_num, &config);
#elif defined(CONFIG_EXYNOS_BCM_DBG_GNR)
	config.raw_cmd = BCM_CMD_SET(ipc_type, BCM_CMD_ID_MASK, BCM_CMD_ID_SHIFT);
	memcpy(config.cmd, bcm_cmd, sizeof(unsigned int) * CMD_DATA_MAX);
	ret = bin_func->send_data(&config);
#endif
	if (ret) {
		BCM_ERR("%s: Failed to send IPC(%d:%u) data to origin\n",
			__func__, ipc_type, data->ipc_ch_num);
		return ret;
	}

#if defined(CONFIG_EXYNOS_ADV_TRACER)
	for (i = 0; i < data->ipc_size; i++)
		BCM_DBG("%s: received data[%d]: 0x%08x\n",
				__func__, i, config.buffer[i]);

	memcpy(bcm_cmd, &config.buffer[1], sizeof(unsigned int) * CMD_DATA_MAX);

	ipc_err = exynos_bcm_dbg_ipc_err_handle(config.cmd_raw.cmd);
#elif defined(CONFIG_EXYNOS_BCM_DBG_GNR)
	BCM_DBG("%s: received data raw: 0x%08x\n", __func__, config.raw_cmd);
	for (i = 0; i < CMD_DATA_MAX; i++)
		BCM_DBG("%s: received data[%d]: 0x%08x\n",
				__func__, i, config.cmd[i]);

	memcpy(bcm_cmd, config.cmd, sizeof(unsigned int) * CMD_DATA_MAX);

	ipc_err = exynos_bcm_dbg_ipc_err_handle(config.raw_cmd);
#endif
	if (ipc_err) {
		ret = -EBADMSG;
		return ret;
	}

	return 0;
}

int exynos_bcm_dbg_ipc_send_data(enum exynos_bcm_dbg_ipc_type ipc_type,
				struct exynos_bcm_dbg_data *data,
				unsigned int *cmd)
{
	int ret;
	unsigned long flags;

	if (!data) {
		BCM_ERR("%s: data is not ready!\n", __func__);
		return -ENODEV;
	}

	spin_lock_irqsave(&data->lock, flags);
	ret = __exynos_bcm_dbg_ipc_send_data(ipc_type, data, cmd);
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}
EXPORT_SYMBOL(exynos_bcm_dbg_ipc_send_data);

#ifdef CONFIG_EXYNOS_ADV_TRACER
static int adv_tracer_bcm_dbg_handler(struct adv_tracer_ipc_cmd *cmd, unsigned int len)
{
	return 0;
}

static int exynos_bcm_dbg_ipc_channel_request(struct exynos_bcm_dbg_data *data)
{
	int ret = 0;

	ret = adv_tracer_ipc_request_channel(data->ipc_node,
				(ipc_callback)adv_tracer_bcm_dbg_handler,
				&data->ipc_ch_num, &data->ipc_size);
	if (ret) {
		BCM_ERR("%s: adv tracer request channel is failed\n", __func__);
		return ret;
	}

	BCM_INFO("ipc channel info: ch_num(%u), size(%u)\n",
				data->ipc_ch_num, data->ipc_size);

	return ret;
}

static void exynos_bcm_dbg_ipc_channel_release(struct exynos_bcm_dbg_data *data)
{
	adv_tracer_ipc_release_channel(data->ipc_ch_num);
}
#else
static inline
int exynos_bcm_dbg_ipc_channel_request(struct exynos_bcm_dbg_data *data)
{
	return 0;
}

static inline
void exynos_bcm_dbg_ipc_channel_release(struct exynos_bcm_dbg_data *data)
{
}
#endif

static int exynos_bcm_dbg_early_pd_sync(unsigned int cal_pdid, bool on)
{
	unsigned int cmd[4] = {0, };
	unsigned long flags;
	struct exynos_bcm_pd_info *bcm_pd_info = NULL;
	int i, ret = 0;

	spin_lock_irqsave(&bcm_dbg_data->lock, flags);

	for (i = 0; i < bcm_dbg_data->pd_size; i++) {
		if (bcm_dbg_data->pd_info[i]->cal_pdid == cal_pdid) {
			bcm_pd_info = bcm_dbg_data->pd_info[i];
			break;
		}
	}

	if (!bcm_pd_info) {
		ret = -EINVAL;
		goto out;
	}

	if (on ^ bcm_pd_info->on) {
		bcm_pd_info->on = on;
		/* Generate IPC command for PD sync */
		cmd[0] |= BCM_CMD_SET(bcm_pd_info->pd_index, BCM_PD_INFO_MASK,
					BCM_PD_INFO_SHIFT);
		cmd[0] |= BCM_CMD_SET((unsigned int)on, BCM_ONE_BIT_MASK,
					BCM_PD_ON_SHIFT);
		cmd[1] = 0;
		cmd[2] = 0;
		cmd[3] = 0;

		/* send command for PD sync */
		ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_PD,
							bcm_dbg_data, cmd);
		if (ret) {
			BCM_ERR("%s: Failed send data for pd sync\n", __func__);
			goto out;
		}
	}

out:
	spin_unlock_irqrestore(&bcm_dbg_data->lock, flags);

	return ret;
}
int exynos_bcm_dbg_pd_sync(unsigned int cal_pdid, bool on)
{
	unsigned int cmd[4] = {0, };
	unsigned long flags;
	struct exynos_bcm_pd_info *bcm_pd_info = NULL;
	int i, ret = 0;

	if (!bcm_dbg_data || !bcm_dbg_data->pd_sync_init) {
		BCM_DBG("%s: do not pd_sync_init(%s)\n", __func__,
				bcm_dbg_data->pd_sync_init ? "true" : "false");
		return 0;
	}

	spin_lock_irqsave(&bcm_dbg_data->lock, flags);

	for (i = 0; i < bcm_dbg_data->pd_size; i++) {
		if (bcm_dbg_data->pd_info[i]->cal_pdid == cal_pdid) {
			bcm_pd_info = bcm_dbg_data->pd_info[i];
			break;
		}
	}

	if (!bcm_pd_info) {
		ret = -EINVAL;
		goto out;
	}

	if (on ^ bcm_pd_info->on) {
		bcm_pd_info->on = on;
		/* Generate IPC command for PD sync */
		cmd[0] |= BCM_CMD_SET(bcm_pd_info->pd_index, BCM_PD_INFO_MASK,
					BCM_PD_INFO_SHIFT);
		cmd[0] |= BCM_CMD_SET((unsigned int)on, BCM_ONE_BIT_MASK,
					BCM_PD_ON_SHIFT);
		cmd[1] = 0;
		cmd[2] = 0;
		cmd[3] = 0;

		/* send command for PD sync */
		ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_PD,
							bcm_dbg_data, cmd);
		if (ret) {
			BCM_ERR("%s: Failed send data for pd sync\n", __func__);
			goto out;
		}
	}

out:
	spin_unlock_irqrestore(&bcm_dbg_data->lock, flags);

	return ret;
}
EXPORT_SYMBOL(exynos_bcm_dbg_pd_sync);

static int exynos_bcm_dbg_pd_sync_init(struct exynos_bcm_dbg_data *data)
{
	struct exynos_pm_domain *exynos_pd;
	unsigned int pd_index, pd_size;
	int ret = 0;

	if (data->pd_sync_init) {
		BCM_ERR("%s: already pd_sync_init(%s)\n",
			__func__, data->pd_sync_init ? "true" : "false");
		return -EINVAL;
	}

	pd_size = data->pd_size;
	for (pd_index = 0; pd_index < pd_size; pd_index++) {
		exynos_pd = NULL;
		data->pd_info[pd_index]->on = false;
		exynos_pd = exynos_pd_lookup_name(data->pd_info[pd_index]->pd_name);
		if (exynos_pd) {
			mutex_lock(&exynos_pd->access_lock);
			exynos_pd->bcm = data->pd_info[pd_index];
			data->pd_info[pd_index]->cal_pdid = exynos_pd->cal_pdid;
			if (cal_pd_status(exynos_pd->cal_pdid)) {
				ret = exynos_bcm_dbg_pd_sync(data->pd_info[pd_index]->cal_pdid, true);
				if (ret) {
					mutex_unlock(&exynos_pd->access_lock);
					return ret;
				}
			}
			mutex_unlock(&exynos_pd->access_lock);
		} else {
			ret = exynos_bcm_dbg_early_pd_sync(data->pd_info[pd_index]->cal_pdid, true);
			if (ret)
				return ret;
		}
	}

	data->pd_sync_init = true;

	return ret;
}

static int exynos_bcm_dbg_pd_sync_exit(struct exynos_bcm_dbg_data *data)
{
	struct exynos_pm_domain *exynos_pd;
	unsigned int pd_index, pd_size;
	int ret = 0;

	if (!data->pd_sync_init) {
		BCM_ERR("%s: already pd_sync_exit(%s)\n",
			__func__, data->pd_sync_init ? "true" : "false");
		return -EINVAL;
	}

	pd_size = data->pd_size;
	for (pd_index = 0; pd_index < pd_size; pd_index++) {
		exynos_pd = exynos_pd_lookup_name(data->pd_info[pd_index]->pd_name);
		if (exynos_pd) {
			mutex_lock(&exynos_pd->access_lock);
			exynos_pd->bcm = NULL;
			ret = exynos_bcm_dbg_pd_sync(data->pd_info[pd_index]->cal_pdid, false);
			if (ret) {
				mutex_unlock(&exynos_pd->access_lock);
				return ret;
			}
			mutex_unlock(&exynos_pd->access_lock);
		} else {
			ret = exynos_bcm_dbg_pd_sync(data->pd_info[pd_index]->cal_pdid, false);
			if (ret)
				return ret;
		}
	}

	data->pd_sync_init = false;

	return ret;
}

static void exynos_bcm_dbg_set_base_info(
				struct exynos_bcm_ipc_base_info *ipc_base_info,
				enum exynos_bcm_event_id event_id,
				enum exynos_bcm_event_dir direction,
				enum exynos_bcm_ip_range ip_range)
{
	ipc_base_info->event_id = event_id;
	ipc_base_info->ip_range = ip_range;
	ipc_base_info->direction = direction;
}

static void exynos_bcm_dbg_set_base_cmd(unsigned int *cmd,
				struct exynos_bcm_ipc_base_info *ipc_base_info)
{
	cmd[0] = 0;
	cmd[0] |= BCM_CMD_SET(ipc_base_info->event_id, BCM_EVT_ID_MASK,
					BCM_EVT_ID_SHIFT);
	cmd[0] |= BCM_CMD_SET(ipc_base_info->ip_range, BCM_ONE_BIT_MASK,
					BCM_IP_RANGE_SHIFT);
	cmd[0] |= BCM_CMD_SET(ipc_base_info->direction, BCM_ONE_BIT_MASK,
					BCM_EVT_DIR_SHIFT);
}

static int exynos_bcm_dbg_event_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					struct exynos_bcm_event *bcm_event,
					unsigned int bcm_ip_index,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	int i, ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info || !bcm_event) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_PRE_DEFINE &&
		ipc_base_info->event_id != BCM_EVT_EVENT) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->ip_range == BCM_EACH)
		cmd[0] |= BCM_CMD_SET(bcm_ip_index, BCM_IP_MASK, BCM_IP_SHIFT);

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		cmd[0] |= BCM_CMD_SET(bcm_event->index, BCM_EVT_PRE_DEFINE_MASK,
					BCM_EVT_PRE_DEFINE_SHIFT);

		for (i = 0; i < BCM_EVT_EVENT_MAX / 2; i++) {
			cmd[1] |= BCM_CMD_SET(bcm_event->event[i], BCM_EVT_EVENT_MASK,
						BCM_EVT_EVENT_SHIFT(i));
			if (data->bcm_cnt_nr > 4) {
				cmd[2] |= BCM_CMD_SET(bcm_event->event[i + 4], BCM_EVT_EVENT_MASK,
						BCM_EVT_EVENT_SHIFT(i + 4));
			}
		}
	}

	/* send command for BCM Event */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		bcm_event->index = BCM_CMD_GET(cmd[0], BCM_EVT_PRE_DEFINE_MASK,
						BCM_EVT_PRE_DEFINE_SHIFT);

		for (i = 0; i < BCM_EVT_EVENT_MAX / 2; i++) {
			bcm_event->event[i] = BCM_CMD_GET(cmd[1], BCM_EVT_EVENT_MASK,
							BCM_EVT_EVENT_SHIFT(i));
			if (data->bcm_cnt_nr > 4) {
				bcm_event->event[i + 4] = BCM_CMD_GET(cmd[2], BCM_EVT_EVENT_MASK,
						BCM_EVT_EVENT_SHIFT(i + 4));
			}
		}
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_filter_id_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					struct exynos_bcm_filter_id *filter_id,
					unsigned int bcm_ip_index,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	int i, ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info || !filter_id) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_EVENT_FLT_ID) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->ip_range == BCM_EACH)
		cmd[0] |= BCM_CMD_SET(bcm_ip_index, BCM_IP_MASK, BCM_IP_SHIFT);

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		cmd[1] = filter_id->sm_id_mask;
		cmd[2] = filter_id->sm_id_value;
		for (i = 0; i < data->bcm_cnt_nr; i++)
			cmd[3] |= BCM_CMD_SET(filter_id->sm_id_active[i],
					BCM_ONE_BIT_MASK, BCM_EVT_FLT_ACT_SHIFT(i));
	}

	/* send command for BCM Filter ID */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		filter_id->sm_id_mask = cmd[1];
		filter_id->sm_id_value = cmd[2];
		for (i = 0; i < data->bcm_cnt_nr; i++)
			filter_id->sm_id_active[i] = BCM_CMD_GET(cmd[3],
							BCM_ONE_BIT_MASK,
							BCM_EVT_FLT_ACT_SHIFT(i));
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_filter_others_ctrl(
					struct exynos_bcm_ipc_base_info *ipc_base_info,
					struct exynos_bcm_filter_others *filter_others,
					unsigned int bcm_ip_index,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	int i, ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info || !filter_others) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_EVENT_FLT_OTHERS) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->ip_range == BCM_EACH)
		cmd[0] |= BCM_CMD_SET(bcm_ip_index, BCM_IP_MASK, BCM_IP_SHIFT);

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		for (i = 0; i < BCM_EVT_FLT_OTHR_MAX; i++) {
			cmd[1] |= BCM_CMD_SET(filter_others->sm_other_type[i],
						BCM_EVT_FLT_OTHR_TYPE_MASK,
						BCM_EVT_FLT_OTHR_TYPE_SHIFT(i));
			cmd[1] |= BCM_CMD_SET(filter_others->sm_other_mask[i],
						BCM_EVT_FLT_OTHR_MASK_MASK,
						BCM_EVT_FLT_OTHR_MASK_SHIFT(i));
			cmd[1] |= BCM_CMD_SET(filter_others->sm_other_value[i],
						BCM_EVT_FLT_OTHR_VALUE_MASK,
						BCM_EVT_FLT_OTHR_VALUE_SHIFT(i));
		}

		for (i = 0; i < data->bcm_cnt_nr; i++)
			cmd[2] |= BCM_CMD_SET(filter_others->sm_other_active[i],
					BCM_ONE_BIT_MASK, BCM_EVT_FLT_ACT_SHIFT(i));
	}

	/* send command for BCM Filter Others */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		for (i = 0; i < BCM_EVT_FLT_OTHR_MAX; i++) {
			filter_others->sm_other_type[i] =
				BCM_CMD_GET(cmd[1], BCM_EVT_FLT_OTHR_TYPE_MASK,
						BCM_EVT_FLT_OTHR_TYPE_SHIFT(i));
			filter_others->sm_other_mask[i] =
				BCM_CMD_GET(cmd[1], BCM_EVT_FLT_OTHR_MASK_MASK,
						BCM_EVT_FLT_OTHR_MASK_SHIFT(i));
			filter_others->sm_other_value[i] =
				BCM_CMD_GET(cmd[1], BCM_EVT_FLT_OTHR_VALUE_MASK,
						BCM_EVT_FLT_OTHR_VALUE_SHIFT(i));
		}

		for (i = 0; i < data->bcm_cnt_nr; i++)
			filter_others->sm_other_active[i] =
				BCM_CMD_GET(cmd[2], BCM_ONE_BIT_MASK,
						BCM_EVT_FLT_ACT_SHIFT(i));
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_sample_id_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					struct exynos_bcm_sample_id *sample_id,
					unsigned int bcm_ip_index,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	int i, ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info || !sample_id) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_EVENT_SAMPLE_ID) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->ip_range == BCM_EACH)
		cmd[0] |= BCM_CMD_SET(bcm_ip_index, BCM_IP_MASK, BCM_IP_SHIFT);

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		cmd[1] = sample_id->peak_mask;
		cmd[2] = sample_id->peak_id;
		for (i = 0; i < data->bcm_cnt_nr; i++)
			cmd[3] |= BCM_CMD_SET(sample_id->peak_enable[i],
					BCM_ONE_BIT_MASK, BCM_EVT_FLT_ACT_SHIFT(i));
	}

	/* send command for BCM Sample ID */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		sample_id->peak_mask = cmd[1];
		sample_id->peak_id = cmd[2];
		for (i = 0; i < data->bcm_cnt_nr; i++)
			sample_id->peak_enable[i] = BCM_CMD_GET(cmd[3],
							BCM_ONE_BIT_MASK,
							BCM_EVT_FLT_ACT_SHIFT(i));
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_run_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					unsigned int *bcm_run,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	unsigned int run, low_ktime, high_ktime;
	int ret = 0;
	u64 ktime;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_RUN_CONT) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_SET) {
		run = *bcm_run;

		if (!(run ^ data->bcm_run_state)) {
			BCM_INFO("%s: same run control command(%u) bcm_run_state(%u)\n",
					__func__, run, data->bcm_run_state);
			goto out;
		}

		cmd[0] |= BCM_CMD_SET(run, BCM_ONE_BIT_MASK,
					BCM_EVT_RUN_CONT_SHIFT);

		if (run == BCM_STOP) {
			ktime = sched_clock();
			low_ktime = (unsigned int)(ktime & EXYNOS_BCM_U64_LOW_MASK);
			high_ktime = (unsigned int)((ktime & EXYNOS_BCM_U64_HIGH_MASK)
							>> EXYNOS_BCM_32BIT_SHIFT);
			cmd[1] = low_ktime;
			cmd[2] = high_ktime;

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
			if (data->bcm_mode != BCM_MODE_USERCTRL)
				hrtimer_try_to_cancel(&data->bcm_hrtimer);
#endif
		}
	}

	/* send command for BCM Run */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		run = BCM_CMD_GET(cmd[0], BCM_ONE_BIT_MASK,
					BCM_EVT_RUN_CONT_SHIFT);
		*bcm_run = run;
	} else if (ipc_base_info->direction == BCM_EVT_SET) {
		data->bcm_run_state = run;
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
		if (run == BCM_RUN && data->bcm_mode != BCM_MODE_USERCTRL)
			hrtimer_start(&data->bcm_hrtimer,
				ms_to_ktime(data->period), HRTIMER_MODE_REL);
#endif
	}

	spin_unlock_irqrestore(&data->lock, flags);

	/* dumping data from buffer */
	if (run == BCM_STOP &&
		ipc_base_info->direction == BCM_EVT_SET)
		exynos_bcm_dbg_buffer_dump(data, data->dump_klog);

	return ret;

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_period_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					unsigned int *bcm_period,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	unsigned int period;
	int ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_PERIOD_CONT) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		period = *bcm_period;

		/* valid check for period range */
		if (!(period >= BCM_TIMER_PERIOD_MIN &&
			period <= BCM_TIMER_PERIOD_MAX)) {
			BCM_ERR("%s: Invalid period range(%umsec),(%d ~ %dmsec)\n",
					__func__, period,
					BCM_TIMER_PERIOD_MIN, BCM_TIMER_PERIOD_MAX);
			ret = -EINVAL;
			goto out;
		}

		cmd[1] |= BCM_CMD_SET(period, BCM_EVT_PERIOD_CONT_MASK,
					BCM_EVT_PERIOD_CONT_SHIFT);
	}

	/* send command for BCM Period */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		period = BCM_CMD_GET(cmd[1], BCM_EVT_PERIOD_CONT_MASK,
					BCM_EVT_PERIOD_CONT_SHIFT);
		*bcm_period = period;
	}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	data->period = period;
#endif
out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_mode_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					unsigned int *bcm_mode,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	unsigned int mode;
	int ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_MODE_CONT) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		mode = *bcm_mode;

		if (mode >= BCM_MODE_MAX) {
			BCM_ERR("%s: Invalid BCM mode(%u), BCM mode max(%d)\n",
					__func__, mode, BCM_MODE_MAX);
			ret = -EINVAL;
			goto out;
		}

		cmd[0] |= BCM_CMD_SET(mode, BCM_EVT_MODE_CONT_MASK,
					BCM_EVT_MODE_CONT_SHIFT);
	}

	/* send command for BCM Mode */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		mode = BCM_CMD_GET(cmd[0], BCM_EVT_MODE_CONT_MASK,
					BCM_EVT_MODE_CONT_SHIFT);
		*bcm_mode = mode;
	}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	data->bcm_mode = mode;
#endif

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_str_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					unsigned int *ap_suspend,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	unsigned int suspend;
	int ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_STR_STATE) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_SET) {
		suspend = *ap_suspend;
		cmd[0] |= BCM_CMD_SET(suspend, BCM_ONE_BIT_MASK,
					BCM_EVT_STR_STATE_SHIFT);

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
		if (suspend && data->bcm_mode != BCM_MODE_USERCTRL)
			hrtimer_try_to_cancel(&data->bcm_hrtimer);
#endif
	}

	/* send command for BCM STR state */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		suspend = BCM_CMD_GET(cmd[0], BCM_ONE_BIT_MASK,
					BCM_EVT_STR_STATE_SHIFT);
		*ap_suspend = suspend;
	}
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	if (ipc_base_info->direction == BCM_EVT_SET) {
		if (!suspend && data->bcm_mode != BCM_MODE_USERCTRL)
			hrtimer_start(&data->bcm_hrtimer,
				ms_to_ktime(data->period), HRTIMER_MODE_REL);
	}
#endif

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

static int exynos_bcm_dbg_ip_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					unsigned int *bcm_ip_enable,
					unsigned int bcm_ip_index,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	unsigned int ip_enable;
	int ret = 0;
	unsigned long flags;

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_IP_CONT) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->ip_range == BCM_EACH)
		cmd[0] |= BCM_CMD_SET(bcm_ip_index, BCM_IP_MASK, BCM_IP_SHIFT);

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

		ip_enable = *bcm_ip_enable;
		cmd[0] |= BCM_CMD_SET(ip_enable, BCM_ONE_BIT_MASK,
					BCM_EVT_IP_CONT_SHIFT);
	}

	/* send command for BCM IP control */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_GET) {
		ip_enable = BCM_CMD_GET(cmd[0], BCM_ONE_BIT_MASK,
					BCM_EVT_IP_CONT_SHIFT);
		*bcm_ip_enable = ip_enable;
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}

#ifdef CONFIG_DEBUG_SNAPSHOT
static int exynos_bcm_dbg_dump_addr_ctrl(struct exynos_bcm_ipc_base_info *ipc_base_info,
					struct exynos_bcm_dump_addr *dump_addr,
					struct exynos_bcm_dbg_data *data)
{
	unsigned int cmd[4] = {0, 0, 0, 0};
	int ret = 0;
	unsigned long flags;
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	u64 v_addr;
#endif

	spin_lock_irqsave(&data->lock, flags);

	if (!ipc_base_info) {
		BCM_ERR("%s: pointer is NULL\n", __func__);
		ret = -EINVAL;
		goto out;
	}

	exynos_bcm_dbg_set_base_cmd(cmd, ipc_base_info);

	if (ipc_base_info->event_id != BCM_EVT_DUMP_ADDR) {
		BCM_ERR("%s: Invalid Event ID(%d)\n", __func__,
					ipc_base_info->event_id);
		ret = -EINVAL;
		goto out;
	}

	if (ipc_base_info->direction == BCM_EVT_SET) {
		/*
		 * check bcm running state
		 * When bcm is running, value can not set
		 */
		ret = exynos_bcm_is_running(data->bcm_run_state);
		if (ret)
			goto out;

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
		v_addr = (u64)dump_addr->v_addr;
		if (!v_addr || !dump_addr->buff_size) {
			BCM_ERR("%s: No dump address info: v_addr(%llu), buff_size(0x%08x)\n",
					__func__, v_addr, dump_addr->buff_size);
			ret = -EINVAL;
			goto out;
		}

		cmd[1] = (unsigned int)(v_addr & EXYNOS_BCM_U64_LOW_MASK);
		cmd[2] = (unsigned int)((v_addr & EXYNOS_BCM_U64_HIGH_MASK)
						>> EXYNOS_BCM_32BIT_SHIFT);
		cmd[3] = (unsigned int)dump_addr->buff_size;
#else
		if (!dump_addr->p_addr || !dump_addr->buff_size) {
			BCM_ERR("%s: No dump address info: p_addr(0x%08x), buff_size(0x%08x)\n",
					__func__, dump_addr->p_addr, dump_addr->buff_size);
			ret = -EINVAL;
			goto out;
		}

		cmd[1] = (unsigned int)dump_addr->p_addr;
		cmd[2] = (unsigned int)dump_addr->buff_size;
#endif
	}

	/* send command for BCM Dump address info */
	ret = __exynos_bcm_dbg_ipc_send_data(IPC_BCM_DBG_EVENT, data, cmd);
	if (ret) {
		BCM_ERR("%s: Failed send data\n", __func__);
		goto out;
	}

out:
	spin_unlock_irqrestore(&data->lock, flags);

	return ret;
}
#endif

static int exynos_bcm_dbg_early_init(struct exynos_bcm_dbg_data *data)
{
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_event bcm_event;
	struct exynos_bcm_filter_id filter_id;
	struct exynos_bcm_filter_others filter_others;
	struct exynos_bcm_sample_id sample_id;
	unsigned int default_event;
	int ev_cnt, othr_cnt, ip_cnt;
	int ret = 0;

	/* pre-defined event set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_PRE_DEFINE,
					BCM_EVT_SET, BCM_ALL);

	default_event = data->default_define_event;
	bcm_event.index = data->define_event[default_event].index;
	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
		bcm_event.event[ev_cnt] =
			data->define_event[default_event].event[ev_cnt];

	ret = exynos_bcm_dbg_event_ctrl(&ipc_base_info, &bcm_event, 0, data);
	if (ret) {
		BCM_ERR("%s: failed set event\n", __func__);
		return ret;
	}

	/* default filter id set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_ID,
					BCM_EVT_SET, BCM_ALL);

	filter_id.sm_id_mask = data->define_filter_id[default_event].sm_id_mask;
	filter_id.sm_id_value = data->define_filter_id[default_event].sm_id_value;
	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
		filter_id.sm_id_active[ev_cnt] =
			data->define_filter_id[default_event].sm_id_active[ev_cnt];

	ret = exynos_bcm_dbg_filter_id_ctrl(&ipc_base_info, &filter_id,
						0, data);
	if (ret) {
		BCM_ERR("%s: failed set filter ID\n", __func__);
		return ret;
	}

	/* default filter others set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_OTHERS,
					BCM_EVT_SET, BCM_ALL);

	for (othr_cnt = 0; othr_cnt < BCM_EVT_FLT_OTHR_MAX; othr_cnt++) {
		filter_others.sm_other_type[othr_cnt] =
			data->define_filter_others[default_event].sm_other_type[othr_cnt];
		filter_others.sm_other_mask[othr_cnt] =
			data->define_filter_others[default_event].sm_other_mask[othr_cnt];
		filter_others.sm_other_value[othr_cnt] =
			data->define_filter_others[default_event].sm_other_value[othr_cnt];
	}

	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
		filter_others.sm_other_active[ev_cnt] =
			data->define_filter_others[default_event].sm_other_active[ev_cnt];

	ret = exynos_bcm_dbg_filter_others_ctrl(&ipc_base_info,
					&filter_others, 0, data);
	if (ret) {
		BCM_ERR("%s: failed set filter others\n", __func__);
		return ret;
	}

	/* default sample id set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_SAMPLE_ID,
					BCM_EVT_SET, BCM_ALL);

	sample_id.peak_mask = data->define_sample_id[default_event].peak_mask;
	sample_id.peak_id = data->define_sample_id[default_event].peak_id;
	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
		sample_id.peak_enable[ev_cnt] =
			data->define_sample_id[default_event].peak_enable[ev_cnt];

	ret = exynos_bcm_dbg_sample_id_ctrl(&ipc_base_info, &sample_id,
						0, data);
	if (ret) {
		BCM_ERR("%s: failed set sample ID\n", __func__);
		return ret;
	}

	/* default period set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_PERIOD_CONT,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_period_ctrl(&ipc_base_info,
					&data->initial_period, data);
	if (ret) {
		BCM_ERR("%s: failed set period\n", __func__);
		return ret;
	}

	/* default mode set */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_MODE_CONT,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_mode_ctrl(&ipc_base_info,
					&data->initial_bcm_mode, data);
	if (ret) {
		BCM_ERR("%s: failed set mode\n", __func__);
		return ret;
	}

	/* default run ip set */
	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_IP_CONT,
						BCM_EVT_SET, BCM_EACH);

		ret = exynos_bcm_dbg_ip_ctrl(&ipc_base_info,
				&data->initial_run_ip[ip_cnt], ip_cnt, data);
		if (ret) {
			BCM_ERR("%s: failed set IP control\n", __func__);
			return ret;
		}
	}

	return 0;
}

static int exynos_bcm_dbg_run(unsigned int bcm_run,
				struct exynos_bcm_dbg_data *data)
{
	struct exynos_bcm_ipc_base_info ipc_base_info;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_RUN_CONT,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_run_ctrl(&ipc_base_info, &bcm_run, data);
	if (ret) {
		BCM_ERR("%s: failed set Run state\n", __func__);
		return ret;
	}

	return 0;
}

void exynos_bcm_dbg_start(void)
{
	int ret;

	if (!bcm_dbg_data) {
		BCM_ERR("%s: bcm_dbg_data is not ready!\n", __func__);
		return;
	}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	if (!bcm_dbg_data->bcm_load_bin) {
		ret = exynos_bcm_dbg_load_bin();
		if (ret) {
			BCM_ERR("%s failed to load BCM bin\n", __func__);
			return;
		}
	}
#endif

	ret = exynos_bcm_dbg_run(BCM_RUN, bcm_dbg_data);
	if (ret) {
		BCM_ERR("%s: failed to bcm start\n", __func__);
		return;
	}

	BCM_INFO("%s\n", __func__);
}
EXPORT_SYMBOL(exynos_bcm_dbg_start);

void exynos_bcm_dbg_stop(unsigned int bcm_stop_owner)
{
	int ret;

	if (!bcm_dbg_data) {
		BCM_ERR("%s: bcm_dbg_data is not ready!\n", __func__);
		return;
	}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	if (!bcm_dbg_data->bcm_load_bin) {
		BCM_ERR("BCM bin has not been loaded yet!!\n");
		return;
	}
#endif

	if (bcm_stop_owner >= STOP_OWNER_MAX) {
		BCM_ERR("Invalid stop owner (%u)\n", bcm_stop_owner);
		return;
	}

	if (!bcm_dbg_data->available_stop_owner[bcm_stop_owner]) {
		BCM_ERR("Have not stop permission (%u)\n", bcm_stop_owner);
		return;
	}

	ret = exynos_bcm_dbg_run(BCM_STOP, bcm_dbg_data);
	if (ret) {
		BCM_ERR("%s: failed to bcm stop\n", __func__);
		return;
	}

	BCM_INFO("%s\n", __func__);
}
EXPORT_SYMBOL(exynos_bcm_dbg_stop);

static int exynos_bcm_dbg_str(unsigned int suspend,
				struct exynos_bcm_dbg_data *data)
{
	struct exynos_bcm_ipc_base_info ipc_base_info;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_STR_STATE,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_str_ctrl(&ipc_base_info, &suspend, data);
	if (ret) {
		BCM_ERR("%s:failed set str state\n", __func__);
		return ret;
	}

	return 0;
}

/* SYSFS Interface */
static ssize_t show_bcm_dbg_data_pd(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	int i;
	ssize_t count = 0;

	count += snprintf(buf, PAGE_SIZE, "=== IPC node info ===\n");

	count += snprintf(buf + count, PAGE_SIZE, "IPC node name: %s\n",
					data->ipc_node->name);

	count += snprintf(buf + count, PAGE_SIZE,
				"\n=== Local Power Domain info ===\n");
	count += snprintf(buf + count, PAGE_SIZE,
				"pd_size: %u, pd_sync_init: %s\n",
				data->pd_size,
				data->pd_sync_init ? "true" : "false");

	for (i = 0; i < data->pd_size; i++)
		count += snprintf(buf + count, PAGE_SIZE,
				"pd_name: %12s, pd_index: %2u, pd_on: %s, cal_pdid: 0x%08x\n",
				data->pd_info[i]->pd_name, data->pd_info[i]->pd_index,
				data->pd_info[i]->on ? "true" : "false",
				data->pd_info[i]->cal_pdid);

	return count;
}

static ssize_t show_bcm_dbg_data_df_event(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	int i, j;
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE,
				"\n=== Pre-defined Event info ===\n");
	for (i = 0; i < data->define_event_max; i++) {
		count += snprintf(buf + count, PAGE_SIZE,
				"Pre-defined Event index: %2u\n",
				data->define_event[i].index);
		for (j = 0; j < data->bcm_cnt_nr; j++)
			count += snprintf(buf + count, PAGE_SIZE,
				" Event[%d]: 0x%02x\n", j, data->define_event[i].event[j]);
	}

	count += snprintf(buf + count, PAGE_SIZE,
				"Default Pre-defined Event index: %2u\n",
				data->default_define_event);
	count += snprintf(buf + count, PAGE_SIZE,
				"Pre-defined Event Max: %2u\n",
				data->define_event_max);

	return count;
}

static ssize_t show_bcm_dbg_data_df_filter(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	int i, j;
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n=== Filter ID info ===\n");
	for (i = 0; i < data->define_event_max; i++) {
		count += snprintf(buf + count, PAGE_SIZE,
				"Pre-defined Event index: %2u\n",
				data->define_event[i].index);
		count += snprintf(buf + count, PAGE_SIZE, " Filter ID mask: 0x%08x\n",
				data->define_filter_id[i].sm_id_mask);
		count += snprintf(buf + count, PAGE_SIZE, " Filter ID value: 0x%08x\n",
				data->define_filter_id[i].sm_id_value);
		count += snprintf(buf + count, PAGE_SIZE, " Filter ID active\n");

		for (j = 0; j < data->bcm_cnt_nr; j++)
			count += snprintf(buf + count, PAGE_SIZE,
					"  Event[%d]: %u\n", j,
					data->define_filter_id[i].sm_id_active[j]);
	}

	count += snprintf(buf + count, PAGE_SIZE, "\n=== Filter Others info ===\n");
	for (i = 0; i < data->define_event_max; i++) {
		count += snprintf(buf + count, PAGE_SIZE,
				"Pre-defined Event index: %2u\n",
				data->define_event[i].index);

		for (j = 0; j < BCM_EVT_FLT_OTHR_MAX; j++) {
			count += snprintf(buf + count, PAGE_SIZE,
					" Filter Others type[%d]: 0x%02x\n",
					j, data->define_filter_others[i].sm_other_type[j]);
			count += snprintf(buf + count, PAGE_SIZE,
					" Filter Others mask[%d]: 0x%02x\n",
					j, data->define_filter_others[i].sm_other_mask[j]);
			count += snprintf(buf + count, PAGE_SIZE,
					" Filter Others value[%d]: 0x%02x\n",
					j, data->define_filter_others[i].sm_other_value[j]);
		}

		count += snprintf(buf + count, PAGE_SIZE, " Filter Others active\n");

		for (j = 0; j < data->bcm_cnt_nr; j++)
			count += snprintf(buf + count, PAGE_SIZE,
					"  Event[%d]: %u\n", j,
					data->define_filter_others[i].sm_other_active[j]);
	}

	return count;
}

static ssize_t show_bcm_dbg_data_df_sample(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	int i, j;
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n=== Sample ID info ===\n");
	for (i = 0; i < data->define_event_max; i++) {
		count += snprintf(buf + count, PAGE_SIZE,
				"Pre-defined Event index: %2u\n",
				data->define_event[i].index);

		count += snprintf(buf + count, PAGE_SIZE, " Sample ID: peak_mask: 0x%08x\n",
					data->define_sample_id[i].peak_mask);
		count += snprintf(buf + count, PAGE_SIZE, " Sample ID: peak_id: 0x%08x\n",
					data->define_sample_id[i].peak_id);
		count += snprintf(buf + count, PAGE_SIZE, " Sample ID active\n");

		for (j = 0; j < data->bcm_cnt_nr; j++)
			count += snprintf(buf + count, PAGE_SIZE,
					"  Event[%d]: %u\n", j,
					data->define_sample_id[i].peak_enable[j]);
	}

	return count;
}

static ssize_t show_bcm_dbg_data_df_attr(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	int i;
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n=== Ctrl Attr info ===\n");
	count += snprintf(buf + count, PAGE_SIZE, "Initial BCM run: %s\n",
				data->initial_bcm_run ? "true" : "false");
	count += snprintf(buf + count, PAGE_SIZE,
				"Initial monitor period: %u msec\n",
				data->initial_period);
	count += snprintf(buf + count, PAGE_SIZE, "Initial BCM mode: %u\n",
				data->initial_bcm_mode);
	count += snprintf(buf + count, PAGE_SIZE, "Initial Run IPs\n");

	for (i = 0; i < data->bcm_ip_nr; i++)
		count += snprintf(buf + count, PAGE_SIZE,
				" BCM IP[%d]: %s\n", i,
				data->initial_run_ip[i] ? "true" : "false");

	return count;
}

static ssize_t show_get_event(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_event bcm_event;
	ssize_t count = 0;
	int ip_cnt, ev_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_event_ctrl(&ipc_base_info, &bcm_event,
						ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get event(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE,
					"bcm[%2d]: def(%2u),",
					ip_cnt, bcm_event.index);
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			count += snprintf(buf + count, PAGE_SIZE,
					" (0x%02x),", bcm_event.event[ev_cnt]);
		count += snprintf(buf + count, PAGE_SIZE, "\n");
	}

	return count;
}

static ssize_t show_event_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	/* help store_event_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= event_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"echo [ip_range] [ip_index] [define_index]	\
			[ev0] [ev1] [ev2] [ev3] [ev4] [ev5] [ev6] [ev7] >	\
			event_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_range: BCM_EACH(%d), BCM_ALL(%d)\n",
				BCM_EACH, BCM_ALL);
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_index: number of bcm ip (0 ~ %u)\n"
			"           (if ip_range is all, set to 0)\n",
				data->bcm_ip_nr - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" define_index: index of pre-defined event (0 ~ %u)\n"
			"               0 means no pre-defined event\n",
				data->define_event_max - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" evX: event value of counter (if define_index is not 0,	\
			set to 0\n"
			"      event value should be hexa value\n");

	return count;
}

static ssize_t store_event_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_event bcm_event;
	unsigned int bcm_ip_index = 0;
	unsigned int ip_range = 0;
	unsigned int event_id, defined_index;
	unsigned int *event;
	int ev_cnt, dfd_cnt, ret;

	event = kzalloc(sizeof(int) * data->bcm_cnt_nr, GFP_KERNEL);
	if (event == NULL) {
		BCM_ERR("%s: faild allocated of event memory\n", __func__);
		return -ENOMEM;
	}

	if (data->bcm_cnt_nr == 4) {
		ret = sscanf(buf, "%u %u %u %x %x %x %x",
				&ip_range, &bcm_ip_index, &defined_index,
				&event[0], &event[1], &event[2], &event[3]);
	} else if (data->bcm_cnt_nr == 8) {
		ret = sscanf(buf, "%u %u %u %x %x %x %x %x %x %x %x",
				&ip_range, &bcm_ip_index, &defined_index,
				&event[0], &event[1], &event[2], &event[3],
				&event[4], &event[5], &event[6], &event[7]);
	} else {
		BCM_ERR("%s: invalid bcm_cnt_nr\n", __func__);
		kfree(event);
		return -EINVAL;
	}

	/* 3 means is the number of index */
	if (ret != data->bcm_cnt_nr + 3) {
		kfree(event);
		return -EINVAL;
	}

	ret = exynos_bcm_ip_validate(ip_range, bcm_ip_index, data->bcm_ip_nr);
	if (ret) {
		kfree(event);
		return ret;
	}

	if (defined_index >= data->define_event_max) {
		BCM_ERR("%s: Invalid defined index(%u),"
			" defined_max_nr(%u)\n", __func__,
				defined_index, data->define_event_max - 1);
		kfree(event);
		return -EINVAL;
	}

	if (ip_range == BCM_ALL)
		bcm_ip_index = 0;

	if (defined_index != NO_PRE_DEFINE_EVT) {
		event_id = BCM_EVT_PRE_DEFINE;
		for (dfd_cnt = 1; dfd_cnt < data->define_event_max; dfd_cnt++) {
			if (defined_index ==
				data->define_event[dfd_cnt].index)
				break;
		}

		bcm_event.index = data->define_event[dfd_cnt].index;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			bcm_event.event[ev_cnt] =
				data->define_event[dfd_cnt].event[ev_cnt];
	} else {
		event_id = BCM_EVT_EVENT;
		bcm_event.index = NO_PRE_DEFINE_EVT;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			bcm_event.event[ev_cnt] = event[ev_cnt];
	}

	exynos_bcm_dbg_set_base_info(&ipc_base_info, event_id,
					BCM_EVT_SET, ip_range);

	ret = exynos_bcm_dbg_event_ctrl(&ipc_base_info, &bcm_event,
						bcm_ip_index, data);
	if (ret) {
		BCM_ERR("%s:failed set event\n", __func__);
		kfree(event);
		return ret;
	}

	kfree(event);
	return count;
}

static ssize_t show_get_filter_id(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_id filter_id;
	ssize_t count = 0;
	int ip_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_ID,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_filter_id_ctrl(&ipc_base_info,
						&filter_id, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get filter id(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE,
				"bcm[%2d]: mask(0x%08x), value(0x%08x)\n",
				ip_cnt, filter_id.sm_id_mask, filter_id.sm_id_value);
	}

	return count;
}

static ssize_t show_get_filter_id_active(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_id filter_id;
	ssize_t count = 0;
	int ip_cnt, ev_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_ID,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_filter_id_ctrl(&ipc_base_info,
						&filter_id, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get filter id(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE, "bcm[%2d]:", ip_cnt);
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			count += snprintf(buf + count, PAGE_SIZE,
					" ev%d %u,", ev_cnt,
					filter_id.sm_id_active[ev_cnt]);
		count += snprintf(buf + count, PAGE_SIZE, "\n");
	}

	return count;
}

static ssize_t show_filter_id_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	/* help store_filter_id_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= filter_id_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"echo [ip_range] [ip_index] [define_index] [mask] [value]	\
			[ev0] [ev1] [ev2] [ev3] [ev4] [ev5] [ev6] [ev7] >	\
			filter_id_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_range: BCM_EACH(%d), BCM_ALL(%d)\n",
				BCM_EACH, BCM_ALL);
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_index: number of bcm ip (0 ~ %u)\n"
			"           (if ip_range is all, set to 0)\n",
				data->bcm_ip_nr - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" define_index: index of pre-defined event (0 ~ %u)\n"
			"               0 means no pre-defined event\n",
				data->define_event_max - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" mask: masking for filter id (if define_index is not 0,	\
			set to 0)\n"
			"       mask value should be hexa value\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" value: value of filter id (if define_index is not 0, set to 0)\n"
			"        value should be hexa value\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" evX: event counter alloc for filter id	\
			(if define_index is not 0, set to 0)\n"
			"      value should be 0 or 1\n");

	return count;
}

static ssize_t store_filter_id_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_id filter_id;
	unsigned int bcm_ip_index = 0;
	unsigned int ip_range = 0;
	unsigned int defined_index;
	unsigned int sm_id_mask, sm_id_value;
	unsigned int *sm_id_active;
	int ev_cnt, ret;

	sm_id_active = kzalloc(sizeof(int) * data->bcm_cnt_nr, GFP_KERNEL);
	if (sm_id_active == NULL) {
		BCM_ERR("%s: faild allocated of sm_id_active memory\n", __func__);
		return -ENOMEM;
	}

	if (data->bcm_cnt_nr == 4) {
		ret = sscanf(buf, "%u %u %u %x %x %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index, &sm_id_mask, &sm_id_value,
				&sm_id_active[0], &sm_id_active[1], &sm_id_active[2], &sm_id_active[3]);
	} else if (data->bcm_cnt_nr == 8) {
		ret = sscanf(buf, "%u %u %u %x %x %u %u %u %u %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index, &sm_id_mask, &sm_id_value,
				&sm_id_active[0], &sm_id_active[1],
				&sm_id_active[2], &sm_id_active[3],
				&sm_id_active[4], &sm_id_active[5],
				&sm_id_active[6], &sm_id_active[7]);
	} else {
		BCM_ERR("%s: invalid bcm_cnt_nr\n", __func__);
		kfree(sm_id_active);
		return -EINVAL;
	}

	/* 5 --> the number of index */
	if (ret != data->bcm_cnt_nr + 5) {
		kfree(sm_id_active);
		return -EINVAL;
	}

	ret = exynos_bcm_ip_validate(ip_range, bcm_ip_index, data->bcm_ip_nr);
	if (ret) {
		kfree(sm_id_active);
		return ret;
	}

	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++) {
		if (sm_id_active[ev_cnt])
			sm_id_active[ev_cnt] = true;
	}

	if (defined_index >= data->define_event_max) {
		BCM_ERR("%s: Invalid defined index(%u),"
			" defined_max_nr(%u)\n", __func__,
				defined_index, data->define_event_max - 1);
		kfree(sm_id_active);
		return -EINVAL;
	}

	if (ip_range == BCM_ALL)
		bcm_ip_index = 0;

	if (defined_index != NO_PRE_DEFINE_EVT) {
		filter_id.sm_id_mask = data->define_filter_id[defined_index].sm_id_mask;
		filter_id.sm_id_value = data->define_filter_id[defined_index].sm_id_value;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			filter_id.sm_id_active[ev_cnt] =
				data->define_filter_id[defined_index].sm_id_active[ev_cnt];
	} else {
		filter_id.sm_id_mask = sm_id_mask;
		filter_id.sm_id_value = sm_id_value;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			filter_id.sm_id_active[ev_cnt] = sm_id_active[ev_cnt];
	}

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_ID,
					BCM_EVT_SET, ip_range);

	ret = exynos_bcm_dbg_filter_id_ctrl(&ipc_base_info, &filter_id,
						bcm_ip_index, data);
	if (ret) {
		BCM_ERR("%s:failed set filter ID\n", __func__);
		kfree(sm_id_active);
		return ret;
	}

	kfree(sm_id_active);
	return count;
}

static ssize_t show_get_filter_others(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_others filter_others;
	ssize_t count = 0;
	int ip_cnt, othr_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_OTHERS,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_filter_others_ctrl(&ipc_base_info,
					&filter_others, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get filter others(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE, "bcm[%2d]:", ip_cnt);
		for (othr_cnt = 0; othr_cnt < BCM_EVT_FLT_OTHR_MAX; othr_cnt++)
			count += snprintf(buf + count, PAGE_SIZE,
					" type%d(0x%02x), mask%d(0x%02x), value%d(0x%02x),",
					othr_cnt, filter_others.sm_other_type[othr_cnt],
					othr_cnt, filter_others.sm_other_mask[othr_cnt],
					othr_cnt, filter_others.sm_other_value[othr_cnt]);
		count += snprintf(buf + count, PAGE_SIZE, "\n");
	}

	return count;
}

static ssize_t show_get_filter_others_active(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_others filter_others;
	ssize_t count = 0;
	int ip_cnt, ev_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_OTHERS,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_filter_others_ctrl(&ipc_base_info,
					&filter_others, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get filter others(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE, "bcm[%2d]:", ip_cnt);
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			count += snprintf(buf + count, PAGE_SIZE,
					" ev%d %u,", ev_cnt,
					filter_others.sm_other_active[ev_cnt]);
		count += snprintf(buf + count, PAGE_SIZE, "\n");
	}

	return count;
}

static ssize_t show_filter_others_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;
	int othr_cnt;

	/* help store_filter_others_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= filter_others_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"echo [ip_range] [ip_index] [define_index]	\
			[type0] [mask0] [value0] [type1] [mask1] [value1]	\
			[ev0] [ev1] [ev2] [ev3] [ev4] [ev5] [ev6] [ev7] >	\
			filter_others_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_range: BCM_EACH(%d), BCM_ALL(%d)\n",
				BCM_EACH, BCM_ALL);
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_index: number of bcm ip (0 ~ %u)\n"
			"           (if ip_range is all, set to 0)\n",
				data->bcm_ip_nr - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" define_index: index of pre-defined event (0 ~ %u)\n"
			"               0 means no pre-defined event\n",
				data->define_event_max - 1);
	for (othr_cnt = 0; othr_cnt < BCM_EVT_FLT_OTHR_MAX; othr_cnt++) {
		count += snprintf(buf + count, PAGE_SIZE,
				" type%d: type%d for filter others	\
				(if define_index is not 0, set to 0)\n"
				"         type%d value should be hexa value\n",
				othr_cnt, othr_cnt, othr_cnt);
		count += snprintf(buf + count, PAGE_SIZE,
				" mask%d: mask%d for filter others	\
				(if define_index is not 0, set to 0)\n"
				"         mask%d value should be hexa value\n",
				othr_cnt, othr_cnt, othr_cnt);
		count += snprintf(buf + count, PAGE_SIZE,
				" value%d: value%d of filter others	\
				(if define_index is not 0, set to 0)\n"
				"          value%d should be hexa value\n",
				othr_cnt, othr_cnt, othr_cnt);
	}
	count += snprintf(buf + count, PAGE_SIZE,
			" evX: event counter alloc for filter others	\
			(if define_index is not 0, set to 0)\n"
			"      value should be 0 or 1\n");

	return count;
}

static ssize_t store_filter_others_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_filter_others filter_others;
	unsigned int bcm_ip_index = 0;
	unsigned int ip_range = 0;
	unsigned int defined_index;
	unsigned int sm_other_type[BCM_EVT_FLT_OTHR_MAX];
	unsigned int sm_other_mask[BCM_EVT_FLT_OTHR_MAX];
	unsigned int sm_other_value[BCM_EVT_FLT_OTHR_MAX];
	unsigned int *sm_other_active;
	int ev_cnt, othr_cnt, ret;

	sm_other_active = kzalloc(sizeof(int) * data->bcm_cnt_nr, GFP_KERNEL);
	if (sm_other_active == NULL) {
		BCM_ERR("%s: faild allocated of sm_other_active memory\n", __func__);
		return -ENOMEM;
	}

	if (data->bcm_cnt_nr == 4) {
		ret = sscanf(buf, "%u %u %u %x %x %x %x %x %x %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index,
				&sm_other_type[0], &sm_other_mask[0], &sm_other_value[0],
				&sm_other_type[1], &sm_other_mask[1], &sm_other_value[1],
				&sm_other_active[0], &sm_other_active[1],
				&sm_other_active[2], &sm_other_active[3]);
	} else if (data->bcm_cnt_nr == 8) {
		ret = sscanf(buf, "%u %u %u %x %x %x %x %x %x %u %u %u %u %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index,
				&sm_other_type[0], &sm_other_mask[0], &sm_other_value[0],
				&sm_other_type[1], &sm_other_mask[1], &sm_other_value[1],
				&sm_other_active[0], &sm_other_active[1],
				&sm_other_active[2], &sm_other_active[3],
				&sm_other_active[4], &sm_other_active[5],
				&sm_other_active[6], &sm_other_active[7]);
	} else {
		BCM_ERR("%s: invalid bcm_cnt_nr\n", __func__);
		kfree(sm_other_active);
		return -EINVAL;
	}

	/* 9 --> the number of index */
	if (ret != data->bcm_cnt_nr + 9) {
		kfree(sm_other_active);
		return -EINVAL;
	}

	ret = exynos_bcm_ip_validate(ip_range, bcm_ip_index, data->bcm_ip_nr);
	if (ret) {
		kfree(sm_other_active);
		return ret;
	}

	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++) {
		if (sm_other_active[ev_cnt])
			sm_other_active[ev_cnt] = true;
	}

	if (defined_index >= data->define_event_max) {
		BCM_ERR("%s: Invalid defined index(%u),"
			" defined_max_nr(%u)\n", __func__,
				defined_index, data->define_event_max - 1);
		kfree(sm_other_active);
		return -EINVAL;
	}

	if (ip_range == BCM_ALL)
		bcm_ip_index = 0;

	if (defined_index != NO_PRE_DEFINE_EVT) {
		for (othr_cnt = 0; othr_cnt < BCM_EVT_FLT_OTHR_MAX; othr_cnt++) {
			filter_others.sm_other_type[othr_cnt] =
				data->define_filter_others[defined_index].sm_other_type[othr_cnt];
			filter_others.sm_other_mask[othr_cnt] =
				data->define_filter_others[defined_index].sm_other_mask[othr_cnt];
			filter_others.sm_other_value[othr_cnt] =
				data->define_filter_others[defined_index].sm_other_value[othr_cnt];
		}

		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			filter_others.sm_other_active[ev_cnt] =
				data->define_filter_others[defined_index].sm_other_active[ev_cnt];
	} else {
		for (othr_cnt = 0; othr_cnt < BCM_EVT_FLT_OTHR_MAX; othr_cnt++) {
			filter_others.sm_other_type[othr_cnt] = sm_other_type[othr_cnt];
			filter_others.sm_other_mask[othr_cnt] = sm_other_mask[othr_cnt];
			filter_others.sm_other_value[othr_cnt] = sm_other_value[othr_cnt];
		}

		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			filter_others.sm_other_active[ev_cnt] = sm_other_active[ev_cnt];
	}

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_FLT_OTHERS,
					BCM_EVT_SET, ip_range);

	ret = exynos_bcm_dbg_filter_others_ctrl(&ipc_base_info,
				&filter_others, bcm_ip_index, data);
	if (ret) {
		BCM_ERR("%s:failed set filter others\n", __func__);
		kfree(sm_other_active);
		return ret;
	}

	kfree(sm_other_active);
	return count;
}

static ssize_t show_get_sample_id(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_sample_id sample_id;
	ssize_t count = 0;
	int ip_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_SAMPLE_ID,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_sample_id_ctrl(&ipc_base_info,
						&sample_id, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get sample id(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE,
				"bcm[%2d]: mask(0x%08x), id(0x%08x)\n",
				ip_cnt, sample_id.peak_mask, sample_id.peak_id);
	}

	return count;
}

static ssize_t show_get_sample_id_active(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_sample_id sample_id;
	ssize_t count = 0;
	int ip_cnt, ev_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_SAMPLE_ID,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_sample_id_ctrl(&ipc_base_info,
						&sample_id, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get sample id(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE, "bcm[%2d]:", ip_cnt);
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			count += snprintf(buf + count, PAGE_SIZE,
					" ev%d %u,", ev_cnt,
					sample_id.peak_enable[ev_cnt]);
		count += snprintf(buf + count, PAGE_SIZE, "\n");
	}

	return count;
}

static ssize_t show_sample_id_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	/* help store_sample_id_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= sample_id_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"echo [ip_range] [ip_index] [define_index] [mask] [id]	\
			[ev0] [ev1] [ev2] [ev3] [ev4] [ev5] [ev6] [ev7] >	\
			sample_id_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_range: BCM_EACH(%d), BCM_ALL(%d)\n",
				BCM_EACH, BCM_ALL);
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_index: number of bcm ip (0 ~ %u)\n"
			"           (if ip_range is all, set to 0)\n",
				data->bcm_ip_nr - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" define_index: index of pre-defined event (0 ~ %u)\n"
			"               0 means no pre-defined event\n",
				data->define_event_max - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" mask: masking for sample id	\
			(if define_index is not 0, set to 0)\n"
			"       mask value should be hexa value\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" id: id of sample id	\
			(if define_index is not 0, set to 0)\n"
			"     id should be hexa value\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" evX: event counter enable for sample id	\
			(if define_index is not 0, set to 0)\n"
			"      value should be 0 or 1\n");

	return count;
}

static ssize_t store_sample_id_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	struct exynos_bcm_sample_id sample_id;
	unsigned int bcm_ip_index = 0;
	unsigned int ip_range = 0;
	unsigned int defined_index;
	unsigned int peak_mask, peak_id;
	unsigned int *peak_enable;
	int ev_cnt, ret;

	peak_enable = kzalloc(sizeof(int) * data->bcm_cnt_nr, GFP_KERNEL);
	if (peak_enable == NULL) {
		BCM_ERR("%s: faild allocated of peak_enable memory\n", __func__);
		return -ENOMEM;
	}

	if (data->bcm_cnt_nr == 4) {
		ret = sscanf(buf, "%u %u %u %x %x %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index,
				&peak_mask, &peak_id, &peak_enable[0], &peak_enable[1],
				&peak_enable[2], &peak_enable[3]);
	} else if (data->bcm_cnt_nr == 8) {
		ret = sscanf(buf, "%u %u %u %x %x %u %u %u %u %u %u %u %u",
				&ip_range, &bcm_ip_index, &defined_index,
				&peak_mask, &peak_id, &peak_enable[0], &peak_enable[1],
				&peak_enable[2], &peak_enable[3],
				&peak_enable[4], &peak_enable[5],
				&peak_enable[6], &peak_enable[7]);
	} else {
		BCM_ERR("%s: invalid bcm_cnt_nr\n", __func__);
		kfree(peak_enable);
		return -EINVAL;
	}

	/* 5 --> the number of index */
	if (ret != data->bcm_cnt_nr + 5) {
		kfree(peak_enable);
		return -EINVAL;
	}

	ret = exynos_bcm_ip_validate(ip_range, bcm_ip_index, data->bcm_ip_nr);
	if (ret) {
		kfree(peak_enable);
		return ret;
	}

	for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++) {
		if (peak_enable[ev_cnt])
			peak_enable[ev_cnt] = true;
	}

	if (defined_index >= data->define_event_max) {
		BCM_ERR("%s: Invalid defined index(%u),"
			" defined_max_nr(%u)\n", __func__,
				defined_index, data->define_event_max - 1);
		kfree(peak_enable);
		return -EINVAL;
	}

	if (ip_range == BCM_ALL)
		bcm_ip_index = 0;

	if (defined_index != NO_PRE_DEFINE_EVT) {
		sample_id.peak_mask = data->define_sample_id[defined_index].peak_mask;
		sample_id.peak_id = data->define_sample_id[defined_index].peak_id;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			sample_id.peak_enable[ev_cnt] =
				data->define_sample_id[defined_index].peak_enable[ev_cnt];
	} else {
		sample_id.peak_mask = peak_mask;
		sample_id.peak_id = peak_id;
		for (ev_cnt = 0; ev_cnt < data->bcm_cnt_nr; ev_cnt++)
			sample_id.peak_enable[ev_cnt] = peak_enable[ev_cnt];
	}

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_EVENT_SAMPLE_ID,
					BCM_EVT_SET, ip_range);

	ret = exynos_bcm_dbg_sample_id_ctrl(&ipc_base_info, &sample_id,
						bcm_ip_index, data);
	if (ret) {
		BCM_ERR("%s:failed set sample ID\n", __func__);
		kfree(peak_enable);
		return ret;
	}

	kfree(peak_enable);
	return count;
}

static ssize_t show_get_run(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int bcm_run;
	ssize_t count = 0;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_RUN_CONT,
					BCM_EVT_GET, 0);

	ret = exynos_bcm_dbg_run_ctrl(&ipc_base_info, &bcm_run, data);
	if (ret) {
		count += snprintf(buf + count, PAGE_SIZE,
					"failed get run state\n");
		return count;
	}

	count += snprintf(buf + count, PAGE_SIZE,
				"run state: raw state(%s), sw state(%s)\n",
				bcm_run ? "run" : "stop",
				data->bcm_run_state ? "run" : "stop");

	return count;
}

static ssize_t show_run_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	ssize_t count = 0;

	/* help store_run_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= run_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE, "echo [run_state] > run_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" run_state: BCM_RUN(%d), BCM_STOP(%d)\n",
				BCM_RUN, BCM_STOP);

	return count;
}

static ssize_t store_run_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	unsigned int bcm_run;
	int ret;

	ret = kstrtouint(buf, 0, &bcm_run);
	if (ret)
		return ret;

	if (!(bcm_run == 0 || bcm_run == 1)) {
		BCM_ERR("%s: invalid parameter (%u)\n", __func__, bcm_run);
		return -EINVAL;
	}

	if (bcm_run)
		bcm_run = true;

	ret = exynos_bcm_dbg_run(bcm_run, data);
	if (ret) {
		BCM_ERR("%s:failed set Run state\n", __func__);
		return ret;
	}

	return count;
}

static ssize_t show_get_period(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int period;
	ssize_t count = 0;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_PERIOD_CONT,
					BCM_EVT_GET, 0);

	ret = exynos_bcm_dbg_period_ctrl(&ipc_base_info, &period, data);
	if (ret) {
		count += snprintf(buf + count, PAGE_SIZE,
					"failed get period\n");
		return count;
	}

	count += snprintf(buf + count, PAGE_SIZE,
				"monitor period: %u msec\n", period);

	return count;
}

static ssize_t show_period_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	ssize_t count = 0;

	/* help store_period_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= period_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE, "echo [period] > period_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" period: monitor period (unit: msec),	\
			min(%d msec) ~ max(%d msec)\n",
			BCM_TIMER_PERIOD_MIN, BCM_TIMER_PERIOD_MAX);

	return count;
}

static ssize_t store_period_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int period;
	int ret;

	ret = kstrtouint(buf, 0, &period);
	if (ret)
		return ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_PERIOD_CONT,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_period_ctrl(&ipc_base_info, &period, data);
	if (ret) {
		BCM_ERR("%s:failed set period\n", __func__);
		return ret;
	}

	return count;
}

static ssize_t show_get_mode(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int bcm_mode;
	ssize_t count = 0;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_MODE_CONT,
					BCM_EVT_GET, 0);

	ret = exynos_bcm_dbg_mode_ctrl(&ipc_base_info, &bcm_mode, data);
	if (ret) {
		count += snprintf(buf + count, PAGE_SIZE,
					"failed get mode\n");
		return count;
	}

	count += snprintf(buf + count, PAGE_SIZE,
			"mode: %d (%d:Interval, %d:Once, %d:User_ctrl)\n",
			bcm_mode,
			BCM_MODE_INTERVAL, BCM_MODE_ONCE, BCM_MODE_USERCTRL);

	return count;
}

static ssize_t show_mode_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	ssize_t count = 0;

	/* help store_mode_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= mode_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE, "echo [mode] > mode_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" mode: Interval(%d), Once(%d), User_ctrl(%d)\n",
			BCM_MODE_INTERVAL, BCM_MODE_ONCE, BCM_MODE_USERCTRL);

	return count;
}

static ssize_t store_mode_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int bcm_mode;
	int ret;

	ret = kstrtouint(buf, 0, &bcm_mode);
	if (ret)
		return ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_MODE_CONT,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_mode_ctrl(&ipc_base_info, &bcm_mode, data);
	if (ret) {
		BCM_ERR("%s:failed set mode\n", __func__);
		return ret;
	}

	return count;
}

static ssize_t show_get_str(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int suspend;
	ssize_t count = 0;
	int ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_STR_STATE,
					BCM_EVT_GET, 0);

	ret = exynos_bcm_dbg_str_ctrl(&ipc_base_info, &suspend, data);
	if (ret) {
		count += snprintf(buf + count, PAGE_SIZE,
					"failed get str state\n");
		return count;
	}

	count += snprintf(buf + count, PAGE_SIZE,
			"str state: %s\n", suspend ? "suspend" : "resume");

	return count;
}

static ssize_t show_str_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	ssize_t count = 0;

	/* help store_str_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= str_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE, "echo [str_state] > str_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" str_state: suspend(1), resume(0)\n");

	return count;
}

static ssize_t store_str_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	unsigned int suspend;
	int ret;

	ret = kstrtouint(buf, 0, &suspend);
	if (ret)
		return ret;

	if (suspend)
		suspend = true;

	ret = exynos_bcm_dbg_str(suspend, data);
	if (ret) {
		BCM_ERR("%s:failed set str state\n", __func__);
		return ret;
	}

	return count;
}

static ssize_t show_get_ip(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int ip_enable;
	ssize_t count = 0;
	int ip_cnt, ret;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_IP_CONT,
					BCM_EVT_GET, BCM_EACH);

	for (ip_cnt = 0; ip_cnt < data->bcm_ip_nr; ip_cnt++) {
		ret = exynos_bcm_dbg_ip_ctrl(&ipc_base_info,
						&ip_enable, ip_cnt, data);
		if (ret) {
			count += snprintf(buf + count, PAGE_SIZE,
					"failed get ip_enable state(ip:%d)\n", ip_cnt);
			return count;
		}

		count += snprintf(buf + count, PAGE_SIZE, "bcm[%2d]: enabled (%s)\n",
					ip_cnt, ip_enable ? "true" : "false");
	}

	return count;
}

static ssize_t show_ip_ctrl_help(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	/* help store_ip_ctrl */
	count += snprintf(buf + count, PAGE_SIZE, "\n= ip_ctrl set help =\n");
	count += snprintf(buf + count, PAGE_SIZE, "Usage:\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"echo [ip_index] [enable] > ip_ctrl\n");
	count += snprintf(buf + count, PAGE_SIZE,
			" ip_index: number of bcm ip (0 ~ %u)\n",
				data->bcm_ip_nr - 1);
	count += snprintf(buf + count, PAGE_SIZE,
			" enable: ip enable state (1:enable, 0:disable)\n");

	return count;
}

static ssize_t store_ip_ctrl(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	struct exynos_bcm_ipc_base_info ipc_base_info;
	unsigned int bcm_ip_index, ip_enable;
	int ret;

	ret = sscanf(buf, "%u %u", &bcm_ip_index, &ip_enable);
	if (ret != 2)
		return -EINVAL;

	ret = exynos_bcm_ip_validate(BCM_EACH, bcm_ip_index, data->bcm_ip_nr);
	if (ret)
		return ret;

	if (ip_enable)
		ip_enable = true;

	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_IP_CONT,
					BCM_EVT_SET, BCM_EACH);

	ret = exynos_bcm_dbg_ip_ctrl(&ipc_base_info, &ip_enable,
						bcm_ip_index, data);
	if (ret) {
		BCM_ERR("%s:failed set IP control\n", __func__);
		return ret;
	}

	return count;
}

#ifdef CONFIG_DEBUG_SNAPSHOT
static int exynos_bcm_dbg_set_dump_info(struct exynos_bcm_dbg_data *data)
{
	struct exynos_bcm_ipc_base_info ipc_base_info;
	int ret;

	if (data->dump_addr.buff_size == 0 ||
		data->dump_addr.buff_size > data->dump_addr.p_size)
		data->dump_addr.buff_size = data->dump_addr.p_size;

	BCM_INFO("%s: virtual address for reserved memory: v_addr = 0x%p\n",
			__func__, data->dump_addr.v_addr);
	BCM_INFO("%s: buffer size for reserved memory: buff_size = 0x%x\n",
			__func__, data->dump_addr.buff_size);

	/* send physical address info to BCM plugin */
	exynos_bcm_dbg_set_base_info(&ipc_base_info, BCM_EVT_DUMP_ADDR,
					BCM_EVT_SET, 0);

	ret = exynos_bcm_dbg_dump_addr_ctrl(&ipc_base_info, &data->dump_addr, data);
	if (ret) {
		BCM_ERR("%s: failed set dump address info\n", __func__);
		return ret;
	}

	return 0;
}

static ssize_t show_dump_addr_info(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n= BCM dump address info =\n");
	count += snprintf(buf + count, PAGE_SIZE,
			"physical address = 0x%08x\n", data->dump_addr.p_addr);
	count += snprintf(buf + count, PAGE_SIZE,
			"virtual address = 0x%p\n", data->dump_addr.v_addr);
	count += snprintf(buf + count, PAGE_SIZE,
			"dump region size = 0x%08x\n", data->dump_addr.p_size);
	count += snprintf(buf + count, PAGE_SIZE,
			"actual use size = 0x%08x\n", data->dump_addr.buff_size);

	return count;
}

static ssize_t store_dump_addr_info(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	unsigned int buff_size;
	int ret;

	ret = kstrtouint(buf, 16, &buff_size);
	if (ret)
		return ret;

	data->dump_addr.buff_size = buff_size;

	ret = exynos_bcm_dbg_set_dump_info(data);
	if (ret) {
		BCM_ERR("%s: failed set dump info\n", __func__);
		return ret;
	}

	return count;
}
#endif

static ssize_t show_enable_dump_klog(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n= BCM dump to kernel log =\n");
	count += snprintf(buf + count, PAGE_SIZE, "%s\n",
				data->dump_klog ? "enabled" : "disabled");

	return count;
}

static ssize_t store_enable_dump_klog(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	unsigned int enable;
	int ret;

	ret = kstrtouint(buf, 0, &enable);
	if (ret)
		return ret;

	if (enable)
		data->dump_klog = true;
	else
		data->dump_klog = false;

	return count;
}

static ssize_t show_enable_stop_owner(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;
	int i;

	count += snprintf(buf + count, PAGE_SIZE, "\n= BCM Available stop owner =\n");
	for (i = 0; i < STOP_OWNER_MAX; i++)
		count += snprintf(buf + count, PAGE_SIZE, " stop owner[%d]: %s\n",
				i, data->available_stop_owner[i] ? "true" : "false");

	return count;
}

static ssize_t store_enable_stop_owner(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	unsigned int owner_index, enable;
	int ret;

	ret = sscanf(buf, "%u %u", &owner_index, &enable);
	if (ret != 2)
		return -EINVAL;

	if (owner_index >= STOP_OWNER_MAX) {
		BCM_ERR("Invalid stop owner (%u)\n", owner_index);
		return -EINVAL;
	}

	if (enable)
		data->available_stop_owner[owner_index] = true;
	else
		data->available_stop_owner[owner_index] = false;

	return count;
}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
static ssize_t show_bcm_dbg_load_bin(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct platform_device *pdev = container_of(dev,
					struct platform_device, dev);
	struct exynos_bcm_dbg_data *data = platform_get_drvdata(pdev);
	ssize_t count = 0;

	count += snprintf(buf + count, PAGE_SIZE, "\n= BCM Load Bin =\n");
	count += snprintf(buf + count, PAGE_SIZE, " bcm load bin: %s\n",
				data->bcm_load_bin ? "true" : "false");

	return count;
}

static ssize_t store_bcm_dbg_load_bin(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	unsigned int load;
	int ret;

	ret = kstrtouint(buf, 0, &load);
	if (ret)
		return ret;

	/* loading firmware */
	if (load) {
		ret = exynos_bcm_dbg_load_bin();
		if (ret) {
			BCM_ERR("%s: failed to load BCM bin\n", __func__);
			return ret;
		}
	}

	return count;
}
#endif

static DEVICE_ATTR(bcm_dbg_data_pd, 0440, show_bcm_dbg_data_pd, NULL);
static DEVICE_ATTR(bcm_dbg_data_df_event, 0440,
			show_bcm_dbg_data_df_event, NULL);
static DEVICE_ATTR(bcm_dbg_data_df_filter, 0440,
			show_bcm_dbg_data_df_filter, NULL);
static DEVICE_ATTR(bcm_dbg_data_df_sample, 0440,
			show_bcm_dbg_data_df_sample, NULL);
static DEVICE_ATTR(bcm_dbg_data_df_attr, 0440,
			show_bcm_dbg_data_df_attr, NULL);
static DEVICE_ATTR(get_event, 0440, show_get_event, NULL);
static DEVICE_ATTR(event_ctrl_help, 0440, show_event_ctrl_help, NULL);
static DEVICE_ATTR(event_ctrl, 0640, NULL, store_event_ctrl);
static DEVICE_ATTR(get_filter_id, 0440, show_get_filter_id, NULL);
static DEVICE_ATTR(get_filter_id_active, 0440,
			show_get_filter_id_active, NULL);
static DEVICE_ATTR(filter_id_ctrl_help, 0440,
			show_filter_id_ctrl_help, NULL);
static DEVICE_ATTR(filter_id_ctrl, 0640, NULL, store_filter_id_ctrl);
static DEVICE_ATTR(get_filter_others, 0440, show_get_filter_others, NULL);
static DEVICE_ATTR(get_filter_others_active, 0440,
			show_get_filter_others_active, NULL);
static DEVICE_ATTR(filter_others_ctrl_help, 0440,
			show_filter_others_ctrl_help, NULL);
static DEVICE_ATTR(filter_others_ctrl, 0640, NULL, store_filter_others_ctrl);
static DEVICE_ATTR(get_sample_id, 0440, show_get_sample_id, NULL);
static DEVICE_ATTR(get_sample_id_active, 0440,
			show_get_sample_id_active, NULL);
static DEVICE_ATTR(sample_id_ctrl_help, 0440,
			show_sample_id_ctrl_help, NULL);
static DEVICE_ATTR(sample_id_ctrl, 0640, NULL, store_sample_id_ctrl);
static DEVICE_ATTR(get_run, 0440, show_get_run, NULL);
static DEVICE_ATTR(run_ctrl_help, 0440, show_run_ctrl_help, NULL);
static DEVICE_ATTR(run_ctrl, 0640, NULL, store_run_ctrl);
static DEVICE_ATTR(get_period, 0440, show_get_period, NULL);
static DEVICE_ATTR(period_ctrl_help, 0440, show_period_ctrl_help, NULL);
static DEVICE_ATTR(period_ctrl, 0640, NULL, store_period_ctrl);
static DEVICE_ATTR(get_mode, 0440, show_get_mode, NULL);
static DEVICE_ATTR(mode_ctrl_help, 0440, show_mode_ctrl_help, NULL);
static DEVICE_ATTR(mode_ctrl, 0640, NULL, store_mode_ctrl);
static DEVICE_ATTR(get_str, 0440, show_get_str, NULL);
static DEVICE_ATTR(str_ctrl_help, 0440, show_str_ctrl_help, NULL);
static DEVICE_ATTR(str_ctrl, 0640, NULL, store_str_ctrl);
static DEVICE_ATTR(get_ip, 0440, show_get_ip, NULL);
static DEVICE_ATTR(ip_ctrl_help, 0440, show_ip_ctrl_help, NULL);
static DEVICE_ATTR(ip_ctrl, 0640, NULL, store_ip_ctrl);
#ifdef CONFIG_DEBUG_SNAPSHOT
static DEVICE_ATTR(dump_addr_info, 0640, show_dump_addr_info, store_dump_addr_info);
#endif
static DEVICE_ATTR(enable_dump_klog, 0640, show_enable_dump_klog, store_enable_dump_klog);
static DEVICE_ATTR(enable_stop_owner, 0640, show_enable_stop_owner, store_enable_stop_owner);
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
static DEVICE_ATTR(bcm_dbg_load_bin, 0640, show_bcm_dbg_load_bin, store_bcm_dbg_load_bin);
#endif

static struct attribute *exynos_bcm_dbg_sysfs_entries[] = {
	&dev_attr_bcm_dbg_data_pd.attr,
	&dev_attr_bcm_dbg_data_df_event.attr,
	&dev_attr_bcm_dbg_data_df_filter.attr,
	&dev_attr_bcm_dbg_data_df_sample.attr,
	&dev_attr_bcm_dbg_data_df_attr.attr,
	&dev_attr_get_event.attr,
	&dev_attr_event_ctrl_help.attr,
	&dev_attr_event_ctrl.attr,
	&dev_attr_get_filter_id.attr,
	&dev_attr_get_filter_id_active.attr,
	&dev_attr_filter_id_ctrl_help.attr,
	&dev_attr_filter_id_ctrl.attr,
	&dev_attr_get_filter_others.attr,
	&dev_attr_get_filter_others_active.attr,
	&dev_attr_filter_others_ctrl_help.attr,
	&dev_attr_filter_others_ctrl.attr,
	&dev_attr_get_sample_id.attr,
	&dev_attr_get_sample_id_active.attr,
	&dev_attr_sample_id_ctrl_help.attr,
	&dev_attr_sample_id_ctrl.attr,
	&dev_attr_get_run.attr,
	&dev_attr_run_ctrl_help.attr,
	&dev_attr_run_ctrl.attr,
	&dev_attr_get_period.attr,
	&dev_attr_period_ctrl_help.attr,
	&dev_attr_period_ctrl.attr,
	&dev_attr_get_mode.attr,
	&dev_attr_mode_ctrl_help.attr,
	&dev_attr_mode_ctrl.attr,
	&dev_attr_get_str.attr,
	&dev_attr_str_ctrl_help.attr,
	&dev_attr_str_ctrl.attr,
	&dev_attr_get_ip.attr,
	&dev_attr_ip_ctrl_help.attr,
	&dev_attr_ip_ctrl.attr,
#ifdef CONFIG_DEBUG_SNAPSHOT
	&dev_attr_dump_addr_info.attr,
#endif
	&dev_attr_enable_dump_klog.attr,
	&dev_attr_enable_stop_owner.attr,
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	&dev_attr_bcm_dbg_load_bin.attr,
#endif
	NULL,
};

static struct attribute_group exynos_bcm_dbg_attr_group = {
	.name	= "bcm_attr",
	.attrs	= exynos_bcm_dbg_sysfs_entries,
};

#ifdef CONFIG_DEBUG_SNAPSHOT
static int exynos_bcm_dbg_dump_config(struct exynos_bcm_dbg_data *data)
{
	int ret;

	data->dump_addr.p_addr = dbg_snapshot_get_item_paddr(BCM_DSS_NAME);
	data->dump_addr.p_size = dbg_snapshot_get_item_size(BCM_DSS_NAME);
	data->dump_addr.v_addr =
		(void __iomem *)dbg_snapshot_get_item_vaddr(BCM_DSS_NAME);

	ret = exynos_bcm_dbg_set_dump_info(data);
	if (ret) {
		BCM_ERR("%s: failed set dump info\n", __func__);
		return ret;
	}

	return 0;
}
#endif

#ifdef CONFIG_EXYNOS_ITMON
static int exynos_bcm_dbg_itmon_notifier(struct notifier_block *nb,
					unsigned long val, void *v)
{
	struct itmon_notifier *itmon_info = (struct itmon_notifier *)v;

	BCM_INFO("%s: itmon error code %u\n", __func__, itmon_info->errcode);

	if (itmon_info->errcode == ERRCODE_ITMON_TIMEOUT) {
		BCM_INFO("%s: Note: It can occurred be IPC timeout	\
				because can be trying access to timeout block	\
				from BCMDBG plugin\n", __func__);
		exynos_bcm_dbg_stop(ITMON_HANDLE);
	}

	return NOTIFY_OK;
}
#endif

static int exynos_bcm_dbg_init(struct exynos_bcm_dbg_data *data)
{
	int ret = 0;

	/* parsing dts data for BCM debug */
	ret = exynos_bcm_dbg_parse_dt(data->dev->of_node, data);
	if (ret) {
		BCM_ERR("%s: failed to parse private data\n", __func__);
		goto err_parse_dt;
	}

	/* Request IPC channel */
	ret = exynos_bcm_dbg_ipc_channel_request(data);
	if (ret) {
		BCM_ERR("%s: failed to ipc channel request\n", __func__);
		goto err_ipc_channel;
	}

	/* Initalize BCM Plugin */
	ret = exynos_bcm_dbg_early_init(data);
	if (ret) {
		BCM_ERR("%s: failed to early bcm initialize\n", __func__);
		goto err_early_init;
	}

	/* initial Local Power Domain sync-up */
	data->pd_sync_init = false;
	ret = exynos_bcm_dbg_pd_sync_init(data);
	if (ret) {
		BCM_ERR("%s: failed to pd_sync_init\n", __func__);
		goto err_pd_sync_init;
	}

#ifdef CONFIG_DEBUG_SNAPSHOT
	ret = exynos_bcm_dbg_dump_config(data);
	if (ret) {
		BCM_ERR("%s: failed to dump config\n", __func__);
		goto err_dump_config;
	}
#endif
	data->dump_klog = false;

	/* BCM plugin run */
	if (data->initial_bcm_run) {
		ret = exynos_bcm_dbg_run(data->initial_bcm_run, data);
		if (ret) {
			BCM_ERR("%s: failed to bcm initial run\n", __func__);
			goto err_initial_run;
		}
	}

	return 0;

err_initial_run:
#ifdef CONFIG_DEBUG_SNAPSHOT
err_dump_config:
#endif
err_pd_sync_init:
err_early_init:
	exynos_bcm_dbg_ipc_channel_release(data);
err_ipc_channel:
err_parse_dt:
	return ret;
}

#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
static enum hrtimer_restart bcm_monitor(struct hrtimer *hrtimer)
{
	unsigned long flags;
	u32 period;
	enum hrtimer_restart ret = HRTIMER_NORESTART;

	spin_lock_irqsave(&bcm_dbg_data->lock, flags);
	period = bin_func->timer_event();
	spin_unlock_irqrestore(&bcm_dbg_data->lock, flags);

	if (bcm_dbg_data->bcm_mode == BCM_MODE_ONCE ||
		bcm_dbg_data->bcm_run_state == BCM_STOP)
		return ret;

	if (period > 0) {
		hrtimer_forward_now(hrtimer, ms_to_ktime(period));
		ret = HRTIMER_RESTART;
	}

	return ret;
}

static void __iomem *bcm_ioremap(phys_addr_t phys_addr, size_t size)
{
	void __iomem *ret;

	ret = ioremap(phys_addr, size);
	if (!ret)
		BCM_ERR("failed to map bcm physical address\n");
	return ret;
}

int exynos_bcm_dbg_load_bin(void)
{
	int ret = 0;
	char *lib_bcm = NULL;

	if (bcm_dbg_data->bcm_load_bin)
		return 0;

	os_func.print = printk;
	os_func.snprint = snprintf;
	os_func.ioremap = bcm_ioremap;
	os_func.iounmap = iounmap;
	os_func.sched_clock = sched_clock;

	lib_bcm = (char *)bcm_addr;
	bin_func = ((start_up_func_t)lib_bcm)((void **)&os_func);

	bcm_dbg_data->bcm_load_bin = true;

	hrtimer_init(&bcm_dbg_data->bcm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
	bcm_dbg_data->bcm_hrtimer.function = bcm_monitor;

	ret = exynos_bcm_dbg_init(bcm_dbg_data);
	if (ret) {
		BCM_ERR("%s: failed to bcm init\n", __func__);
		goto err_init;
	}

err_init:
	return ret;
}
EXPORT_SYMBOL(exynos_bcm_dbg_load_bin);
#endif

static int exynos_bcm_dbg_pm_suspend(struct device *dev)
{
	unsigned int suspend = true;
	int ret;
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	if (!bcm_dbg_data->bcm_load_bin)
		return 0;
#endif
	BCM_DBG("%s: ++\n", __func__);

	ret = exynos_bcm_dbg_str(suspend, bcm_dbg_data);
	if (ret) {
		BCM_ERR("%s: failed set str state\n", __func__);
		return ret;
	}

	BCM_DBG("%s: --\n", __func__);

	return 0;
}

static int exynos_bcm_dbg_pm_resume(struct device *dev)
{
	unsigned int suspend = false;
	int ret;
#ifdef CONFIG_EXYNOS_BCM_DBG_GNR
	if (!bcm_dbg_data->bcm_load_bin)
		return 0;
#endif
	BCM_DBG("%s: ++\n", __func__);

	ret = exynos_bcm_dbg_str(suspend, bcm_dbg_data);
	if (ret) {
		BCM_ERR("%s: failed set str state\n", __func__);
		return ret;
	}

	BCM_DBG("%s: --\n", __func__);

	return 0;
}

static struct dev_pm_ops exynos_bcm_dbg_pm_ops = {
	.suspend	= exynos_bcm_dbg_pm_suspend,
	.resume		= exynos_bcm_dbg_pm_resume,
};

static int __init exynos_bcm_dbg_probe(struct platform_device *pdev)
{
	int ret = 0;
	struct exynos_bcm_dbg_data *data;

	data = kzalloc(sizeof(struct exynos_bcm_dbg_data), GFP_KERNEL);
	if (data == NULL) {
		BCM_ERR("%s: failed to allocate BCM debug device\n", __func__);
		ret = -ENOMEM;
		goto err_data;
	}

	bcm_dbg_data = data;
	data->dev = &pdev->dev;

	spin_lock_init(&data->lock);

#ifndef CONFIG_EXYNOS_BCM_DBG_GNR
	ret = exynos_bcm_dbg_init(data);
	if (ret) {
		BCM_ERR("%s: failed to bcm init\n", __func__);
		goto err_init;
	}
#endif

	platform_set_drvdata(pdev, data);

	ret = sysfs_create_group(&data->dev->kobj, &exynos_bcm_dbg_attr_group);
	if (ret)
		BCM_ERR("%s: failed creat sysfs for Exynos BCM DBG\n", __func__);

#ifdef CONFIG_EXYNOS_ITMON
	data->itmon_notifier.notifier_call = exynos_bcm_dbg_itmon_notifier;
	itmon_notifier_chain_register(&data->itmon_notifier);
#endif

	BCM_INFO("%s: exynos bcm is initialized!!\n", __func__);

	return 0;

#ifndef CONFIG_EXYNOS_BCM_DBG_GNR
err_init:
#endif
	kfree(data);
	data = NULL;
err_data:
	return ret;
}

static int exynos_bcm_dbg_remove(struct platform_device *pdev)
{
	struct exynos_bcm_dbg_data *data =
					platform_get_drvdata(pdev);
	int ret;

	sysfs_remove_group(&data->dev->kobj, &exynos_bcm_dbg_attr_group);
	platform_set_drvdata(pdev, NULL);
	ret = exynos_bcm_dbg_pd_sync_exit(data);
	if (ret) {
		BCM_ERR("%s: failed to pd_sync_exit\n", __func__);
		return ret;
	}

	exynos_bcm_dbg_ipc_channel_release(data);
	kfree(data);
	data = NULL;

	BCM_INFO("%s: exynos bcm is removed!!\n", __func__);

	return 0;
}

static int __init bcm_setup(char *str)
{
	if (kstrtoul(str, 0, (unsigned long *)&bcm_addr))
		goto out;

	return 0;
out:
	return -EINVAL;
}
__setup("reserve-fimc=", bcm_setup);


static struct platform_device_id exynos_bcm_dbg_driver_ids[] = {
	{ .name = EXYNOS_BCM_DBG_MODULE_NAME, },
	{},
};
MODULE_DEVICE_TABLE(platform, exynos_bcm_dbg_driver_ids);

static const struct of_device_id exynos_bcm_dbg_match[] = {
	{ .compatible = "samsung,exynos-bcm_dbg", },
	{},
};

static struct platform_driver exynos_bcm_dbg_driver = {
	.remove = exynos_bcm_dbg_remove,
	.id_table = exynos_bcm_dbg_driver_ids,
	.driver = {
		.name = EXYNOS_BCM_DBG_MODULE_NAME,
		.owner = THIS_MODULE,
		.pm = &exynos_bcm_dbg_pm_ops,
		.of_match_table = exynos_bcm_dbg_match,
	},
};

module_platform_driver_probe(exynos_bcm_dbg_driver, exynos_bcm_dbg_probe);

MODULE_AUTHOR("Taekki Kim <taekki.kim@samsung.com>");
MODULE_DESCRIPTION("Samsung BCM Debug driver");
MODULE_LICENSE("GPL");