[deliverable/linux.git] / drivers / net / wireless / cw1200 / debug.c

/*
 * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
 * DebugFS code
 *
 * Copyright (c) 2010, ST-Ericsson
 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
 *
 * 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/debugfs.h>
#include <linux/seq_file.h>
#include "cw1200.h"
#include "debug.h"
#include "fwio.h"

/* join_status */
static const char * const cw1200_debug_join_status[] = {
	"passive",
	"monitor",
	"station (joining)",
	"station (not authenticated yet)",
	"station",
	"adhoc",
	"access point",
};

/* WSM_JOIN_PREAMBLE_... */
static const char * const cw1200_debug_preamble[] = {
	"long",
	"short",
	"long on 1 and 2 Mbps",
};


static const char * const cw1200_debug_link_id[] = {
	"OFF",
	"REQ",
	"SOFT",
	"HARD",
};

static const char *cw1200_debug_mode(int mode)
{
	switch (mode) {
	case NL80211_IFTYPE_UNSPECIFIED:
		return "unspecified";
	case NL80211_IFTYPE_MONITOR:
		return "monitor";
	case NL80211_IFTYPE_STATION:
		return "station";
	case NL80211_IFTYPE_ADHOC:
		return "adhoc";
	case NL80211_IFTYPE_MESH_POINT:
		return "mesh point";
	case NL80211_IFTYPE_AP:
		return "access point";
	case NL80211_IFTYPE_P2P_CLIENT:
		return "p2p client";
	case NL80211_IFTYPE_P2P_GO:
		return "p2p go";
	default:
		return "unsupported";
	}
}

static void cw1200_queue_status_show(struct seq_file *seq,
				     struct cw1200_queue *q)
{
	int i;
	seq_printf(seq, "Queue       %d:\n", q->queue_id);
	seq_printf(seq, "  capacity: %zu\n", q->capacity);
	seq_printf(seq, "  queued:   %zu\n", q->num_queued);
	seq_printf(seq, "  pending:  %zu\n", q->num_pending);
	seq_printf(seq, "  sent:     %zu\n", q->num_sent);
	seq_printf(seq, "  locked:   %s\n", q->tx_locked_cnt ? "yes" : "no");
	seq_printf(seq, "  overfull: %s\n", q->overfull ? "yes" : "no");
	seq_puts(seq,   "  link map: 0-> ");
	for (i = 0; i < q->stats->map_capacity; ++i)
		seq_printf(seq, "%.2d ", q->link_map_cache[i]);
	seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
}

static void cw1200_debug_print_map(struct seq_file *seq,
				   struct cw1200_common *priv,
				   const char *label,
				   u32 map)
{
	int i;
	seq_printf(seq, "%s0-> ", label);
	for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
		seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
	seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
}

static int cw1200_status_show(struct seq_file *seq, void *v)
{
	int i;
	struct list_head *item;
	struct cw1200_common *priv = seq->private;
	struct cw1200_debug_priv *d = priv->debug;

	seq_puts(seq,   "CW1200 Wireless LAN driver status\n");
	seq_printf(seq, "Hardware:   %d.%d\n",
		   priv->wsm_caps.hw_id,
		   priv->wsm_caps.hw_subid);
	seq_printf(seq, "Firmware:   %s %d.%d\n",
		   cw1200_fw_types[priv->wsm_caps.fw_type],
		   priv->wsm_caps.fw_ver,
		   priv->wsm_caps.fw_build);
	seq_printf(seq, "FW API:     %d\n",
		   priv->wsm_caps.fw_api);
	seq_printf(seq, "FW caps:    0x%.4X\n",
		   priv->wsm_caps.fw_cap);
	seq_printf(seq, "FW label:  '%s'\n",
		   priv->wsm_caps.fw_label);
	seq_printf(seq, "Mode:       %s%s\n",
		   cw1200_debug_mode(priv->mode),
		   priv->listening ? " (listening)" : "");
	seq_printf(seq, "Join state: %s\n",
		   cw1200_debug_join_status[priv->join_status]);
	if (priv->channel)
		seq_printf(seq, "Channel:    %d%s\n",
			   priv->channel->hw_value,
			   priv->channel_switch_in_progress ?
			   " (switching)" : "");
	if (priv->rx_filter.promiscuous)
		seq_puts(seq,   "Filter:     promisc\n");
	else if (priv->rx_filter.fcs)
		seq_puts(seq,   "Filter:     fcs\n");
	if (priv->rx_filter.bssid)
		seq_puts(seq,   "Filter:     bssid\n");
	if (!priv->disable_beacon_filter)
		seq_puts(seq,   "Filter:     beacons\n");

	if (priv->enable_beacon ||
	    priv->mode == NL80211_IFTYPE_AP ||
	    priv->mode == NL80211_IFTYPE_ADHOC ||
	    priv->mode == NL80211_IFTYPE_MESH_POINT ||
	    priv->mode == NL80211_IFTYPE_P2P_GO)
		seq_printf(seq, "Beaconing:  %s\n",
			   priv->enable_beacon ?
			   "enabled" : "disabled");

	for (i = 0; i < 4; ++i)
		seq_printf(seq, "EDCA(%d):    %d, %d, %d, %d, %d\n", i,
			   priv->edca.params[i].cwmin,
			   priv->edca.params[i].cwmax,
			   priv->edca.params[i].aifns,
			   priv->edca.params[i].txop_limit,
			   priv->edca.params[i].max_rx_lifetime);

	if (priv->join_status == CW1200_JOIN_STATUS_STA) {
		static const char *pm_mode = "unknown";
		switch (priv->powersave_mode.mode) {
		case WSM_PSM_ACTIVE:
			pm_mode = "off";
			break;
		case WSM_PSM_PS:
			pm_mode = "on";
			break;
		case WSM_PSM_FAST_PS:
			pm_mode = "dynamic";
			break;
		}
		seq_printf(seq, "Preamble:   %s\n",
			   cw1200_debug_preamble[priv->association_mode.preamble]);
		seq_printf(seq, "AMPDU spcn: %d\n",
			   priv->association_mode.mpdu_start_spacing);
		seq_printf(seq, "Basic rate: 0x%.8X\n",
			   le32_to_cpu(priv->association_mode.basic_rate_set));
		seq_printf(seq, "Bss lost:   %d beacons\n",
			   priv->bss_params.beacon_lost_count);
		seq_printf(seq, "AID:        %d\n",
			   priv->bss_params.aid);
		seq_printf(seq, "Rates:      0x%.8X\n",
			   priv->bss_params.operational_rate_set);
		seq_printf(seq, "Powersave:  %s\n", pm_mode);
	}
	seq_printf(seq, "HT:         %s\n",
		   cw1200_is_ht(&priv->ht_info) ? "on" : "off");
	if (cw1200_is_ht(&priv->ht_info)) {
		seq_printf(seq, "Greenfield: %s\n",
			   cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
		seq_printf(seq, "AMPDU dens: %d\n",
			   cw1200_ht_ampdu_density(&priv->ht_info));
	}
	seq_printf(seq, "RSSI thold: %d\n",
		   priv->cqm_rssi_thold);
	seq_printf(seq, "RSSI hyst:  %d\n",
		   priv->cqm_rssi_hyst);
	seq_printf(seq, "Long retr:  %d\n",
		   priv->long_frame_max_tx_count);
	seq_printf(seq, "Short retr: %d\n",
		   priv->short_frame_max_tx_count);
	spin_lock_bh(&priv->tx_policy_cache.lock);
	i = 0;
	list_for_each(item, &priv->tx_policy_cache.used)
		++i;
	spin_unlock_bh(&priv->tx_policy_cache.lock);
	seq_printf(seq, "RC in use:  %d\n", i);

	seq_puts(seq, "\n");
	for (i = 0; i < 4; ++i) {
		cw1200_queue_status_show(seq, &priv->tx_queue[i]);
		seq_puts(seq, "\n");
	}

	cw1200_debug_print_map(seq, priv, "Link map:   ",
			       priv->link_id_map);
	cw1200_debug_print_map(seq, priv, "Asleep map: ",
			       priv->sta_asleep_mask);
	cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
			       priv->pspoll_mask);

	seq_puts(seq, "\n");

	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
		if (priv->link_id_db[i].status) {
			seq_printf(seq, "Link %d:     %s, %pM\n",
				   i + 1,
				   cw1200_debug_link_id[priv->link_id_db[i].status],
				   priv->link_id_db[i].mac);
		}
	}

	seq_puts(seq, "\n");

	seq_printf(seq, "BH status:  %s\n",
		   atomic_read(&priv->bh_term) ? "terminated" : "alive");
	seq_printf(seq, "Pending RX: %d\n",
		   atomic_read(&priv->bh_rx));
	seq_printf(seq, "Pending TX: %d\n",
		   atomic_read(&priv->bh_tx));
	if (priv->bh_error)
		seq_printf(seq, "BH errcode: %d\n",
			   priv->bh_error);
	seq_printf(seq, "TX bufs:    %d x %d bytes\n",
		   priv->wsm_caps.input_buffers,
		   priv->wsm_caps.input_buffer_size);
	seq_printf(seq, "Used bufs:  %d\n",
		   priv->hw_bufs_used);
	seq_printf(seq, "Powermgmt:  %s\n",
		   priv->powersave_enabled ? "on" : "off");
	seq_printf(seq, "Device:     %s\n",
		   priv->device_can_sleep ? "asleep" : "awake");

	spin_lock(&priv->wsm_cmd.lock);
	seq_printf(seq, "WSM status: %s\n",
		   priv->wsm_cmd.done ? "idle" : "active");
	seq_printf(seq, "WSM cmd:    0x%.4X (%td bytes)\n",
		   priv->wsm_cmd.cmd, priv->wsm_cmd.len);
	seq_printf(seq, "WSM retval: %d\n",
		   priv->wsm_cmd.ret);
	spin_unlock(&priv->wsm_cmd.lock);

	seq_printf(seq, "Datapath:   %s\n",
		   atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
	if (atomic_read(&priv->tx_lock))
		seq_printf(seq, "TXlock cnt: %d\n",
			   atomic_read(&priv->tx_lock));

	seq_printf(seq, "TXed:       %d\n",
		   d->tx);
	seq_printf(seq, "AGG TXed:   %d\n",
		   d->tx_agg);
	seq_printf(seq, "MULTI TXed: %d (%d)\n",
		   d->tx_multi, d->tx_multi_frames);
	seq_printf(seq, "RXed:       %d\n",
		   d->rx);
	seq_printf(seq, "AGG RXed:   %d\n",
		   d->rx_agg);
	seq_printf(seq, "TX miss:    %d\n",
		   d->tx_cache_miss);
	seq_printf(seq, "TX align:   %d\n",
		   d->tx_align);
	seq_printf(seq, "TX burst:   %d\n",
		   d->tx_burst);
	seq_printf(seq, "TX TTL:     %d\n",
		   d->tx_ttl);
	seq_printf(seq, "Scan:       %s\n",
		   atomic_read(&priv->scan.in_progress) ? "active" : "idle");

	return 0;
}

static int cw1200_status_open(struct inode *inode, struct file *file)
{
	return single_open(file, &cw1200_status_show,
		inode->i_private);
}

static const struct file_operations fops_status = {
	.open = cw1200_status_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	.owner = THIS_MODULE,
};

static int cw1200_counters_show(struct seq_file *seq, void *v)
{
	int ret;
	struct cw1200_common *priv = seq->private;
	struct wsm_mib_counters_table counters;

	ret = wsm_get_counters_table(priv, &counters);
	if (ret)
		return ret;

#define PUT_COUNTER(tab, name) \
	seq_printf(seq, "%s:" tab "%d\n", #name, \
		__le32_to_cpu(counters.name))

	PUT_COUNTER("\t\t", plcp_errors);
	PUT_COUNTER("\t\t", fcs_errors);
	PUT_COUNTER("\t\t", tx_packets);
	PUT_COUNTER("\t\t", rx_packets);
	PUT_COUNTER("\t\t", rx_packet_errors);
	PUT_COUNTER("\t",   rx_decryption_failures);
	PUT_COUNTER("\t\t", rx_mic_failures);
	PUT_COUNTER("\t",   rx_no_key_failures);
	PUT_COUNTER("\t",   tx_multicast_frames);
	PUT_COUNTER("\t",   tx_frames_success);
	PUT_COUNTER("\t",   tx_frame_failures);
	PUT_COUNTER("\t",   tx_frames_retried);
	PUT_COUNTER("\t",   tx_frames_multi_retried);
	PUT_COUNTER("\t",   rx_frame_duplicates);
	PUT_COUNTER("\t\t", rts_success);
	PUT_COUNTER("\t\t", rts_failures);
	PUT_COUNTER("\t\t", ack_failures);
	PUT_COUNTER("\t",   rx_multicast_frames);
	PUT_COUNTER("\t",   rx_frames_success);
	PUT_COUNTER("\t",   rx_cmac_icv_errors);
	PUT_COUNTER("\t\t", rx_cmac_replays);
	PUT_COUNTER("\t",   rx_mgmt_ccmp_replays);

#undef PUT_COUNTER

	return 0;
}

static int cw1200_counters_open(struct inode *inode, struct file *file)
{
	return single_open(file, &cw1200_counters_show,
		inode->i_private);
}

static const struct file_operations fops_counters = {
	.open = cw1200_counters_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	.owner = THIS_MODULE,
};

#ifdef CONFIG_CW1200_ETF
static int cw1200_etf_out_show(struct seq_file *seq, void *v)
{
	struct cw1200_common *priv = seq->private;
	struct sk_buff *skb;
	u32 len = 0;

	skb = skb_dequeue(&priv->etf_q);

	if (skb)
		len = skb->len;

	seq_write(seq, &len, sizeof(len));

	if (skb) {
		seq_write(seq, skb->data, len);
		kfree_skb(skb);
	}

	return 0;
}

static int cw1200_etf_out_open(struct inode *inode, struct file *file)
{
	return single_open(file, &cw1200_etf_out_show,
			   inode->i_private);
}

static const struct file_operations fops_etf_out = {
	.open = cw1200_etf_out_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	.owner = THIS_MODULE,
};

struct etf_req_msg;
static int etf_request(struct cw1200_common *priv,
		       struct etf_req_msg *msg, u32 len);

#define MAX_RX_SIZE 2600

struct etf_in_state {
	struct cw1200_common *priv;
	u16 total_len;
	u16 written;
	u8 buf[MAX_RX_SIZE];
};

static int cw1200_etf_in_open(struct inode *inode, struct file *file)
{
	struct etf_in_state *etf = kmalloc(sizeof(struct etf_in_state),
					   GFP_KERNEL);

	if (!etf)
		return -ENOMEM;

	etf->written = 0;
	etf->total_len = 0;
	etf->priv = inode->i_private;

	file->private_data = etf;

	return 0;
}

static int cw1200_etf_in_release(struct inode *inode, struct file *file)
{
	kfree(file->private_data);
	return 0;
}

static ssize_t cw1200_etf_in_write(struct file *file,
	const char __user *user_buf, size_t count, loff_t *ppos)
{
	struct etf_in_state *etf = file->private_data;

	ssize_t written = 0;

	if (!etf->total_len) {
		if (count < sizeof(etf->total_len)) {
			pr_err("count < sizeof(total_len)\n");
			return -EINVAL;
		}

		if (copy_from_user(&etf->total_len, user_buf,
				   sizeof(etf->total_len))) {
			pr_err("copy_from_user (len) failed\n");
			return -EFAULT;
		}

		if (etf->total_len > MAX_RX_SIZE) {
			pr_err("requested length > MAX_RX_SIZE\n");
			return -EINVAL;
		}

		written += sizeof(etf->total_len);
		count -= sizeof(etf->total_len);
	}

	if (!count)
		goto done;

	if (count > (etf->total_len - written)) {
		pr_err("Tried to write > MAX_RX_SIZE\n");
		return -EINVAL;
	}

	if (copy_from_user(etf->buf + etf->written, user_buf + written,
			   count)) {
		pr_err("copy_from_user (payload %zu) failed\n", count);
		return -EFAULT;
	}

	written += count;
	etf->written += count;

	if (etf->written >= etf->total_len) {
		if (etf_request(etf->priv, (struct etf_req_msg *)etf->buf,
				etf->total_len)) {
			pr_err("etf_request failed\n");
			return -EIO;
		}
	}

done:
	return written;
}

static const struct file_operations fops_etf_in = {
	.open = cw1200_etf_in_open,
	.release = cw1200_etf_in_release,
	.write = cw1200_etf_in_write,
	.llseek = default_llseek,
	.owner = THIS_MODULE,
};
#endif /* CONFIG_CW1200_ETF */

static ssize_t cw1200_wsm_dumps(struct file *file,
	const char __user *user_buf, size_t count, loff_t *ppos)
{
	struct cw1200_common *priv = file->private_data;
	char buf[1];

	if (!count)
		return -EINVAL;
	if (copy_from_user(buf, user_buf, 1))
		return -EFAULT;

	if (buf[0] == '1')
		priv->wsm_enable_wsm_dumps = 1;
	else
		priv->wsm_enable_wsm_dumps = 0;

	return count;
}

static const struct file_operations fops_wsm_dumps = {
	.open = simple_open,
	.write = cw1200_wsm_dumps,
	.llseek = default_llseek,
};

int cw1200_debug_init(struct cw1200_common *priv)
{
	int ret = -ENOMEM;
	struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
			GFP_KERNEL);
	priv->debug = d;
	if (!d)
		return ret;

	d->debugfs_phy = debugfs_create_dir("cw1200",
					    priv->hw->wiphy->debugfsdir);
	if (!d->debugfs_phy)
		goto err;

	if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
				 priv, &fops_status))
		goto err;

	if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
				 priv, &fops_counters))
		goto err;

#ifdef CONFIG_CW1200_ETF
	if (etf_mode) {
		skb_queue_head_init(&priv->etf_q);

		if (!debugfs_create_file("etf_out", S_IRUSR, d->debugfs_phy,
					 priv, &fops_etf_out))
			goto err;
		if (!debugfs_create_file("etf_in", S_IWUSR, d->debugfs_phy,
					 priv, &fops_etf_in))
			goto err;
	}
#endif /* CONFIG_CW1200_ETF */

	if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
				 priv, &fops_wsm_dumps))
		goto err;

	ret = cw1200_itp_init(priv);
	if (ret)
		goto err;

	return 0;

err:
	priv->debug = NULL;
	debugfs_remove_recursive(d->debugfs_phy);
	kfree(d);
	return ret;
}

void cw1200_debug_release(struct cw1200_common *priv)
{
	struct cw1200_debug_priv *d = priv->debug;
	if (d) {
		cw1200_itp_release(priv);
		priv->debug = NULL;
		kfree(d);
	}
}

#ifdef CONFIG_CW1200_ETF
struct cw1200_sdd {
	u8 id;
	u8 len;
	u8 data[];
};

struct etf_req_msg {
	u32 id;
	u32 len;
	u8 data[];
};

static int parse_sdd_file(struct cw1200_common *priv, u8 *data, u32 length)
{
	struct cw1200_sdd *ie;

	while (length > 0) {
		ie = (struct cw1200_sdd *)data;
		if (ie->id == SDD_REFERENCE_FREQUENCY_ELT_ID) {
			priv->hw_refclk = cpu_to_le16(*((u16 *)ie->data));
			pr_info("Using Reference clock frequency %d KHz\n",
				priv->hw_refclk);
			break;
		}

		length -= ie->len + sizeof(*ie);
		data += ie->len + sizeof(*ie);
	}
	return 0;
}

char *etf_firmware;

#define ST90TDS_START_ADAPTER           0x09 /* Loads firmware too */
#define ST90TDS_STOP_ADAPTER            0x0A
#define ST90TDS_CONFIG_ADAPTER          0x0E /* Send configuration params */
#define ST90TDS_SBUS_READ               0x13
#define ST90TDS_SBUS_WRITE              0x14
#define ST90TDS_GET_DEVICE_OPTION       0x19
#define ST90TDS_SET_DEVICE_OPTION       0x1A
#define ST90TDS_SEND_SDD                0x1D /* SDD File used to find DPLL */

#include "fwio.h"

static int etf_request(struct cw1200_common *priv,
		       struct etf_req_msg *msg,
		       u32 len)
{
	int rval = -1;
	switch (msg->id) {
	case ST90TDS_START_ADAPTER:
		etf_firmware = "cw1200_etf.bin";
		pr_info("ETF_START (len %d, '%s')\n", len, etf_firmware);
		rval = cw1200_load_firmware(priv);
		break;
	case ST90TDS_STOP_ADAPTER:
		pr_info("ETF_STOP (unhandled)\n");
		break;
	case ST90TDS_SEND_SDD:
		pr_info("ETF_SDD\n");
		rval = parse_sdd_file(priv, msg->data, msg->len);
		break;
	case ST90TDS_CONFIG_ADAPTER:
		pr_info("ETF_CONFIG_ADAP (unhandled)\n");
		break;
	case ST90TDS_SBUS_READ:
		pr_info("ETF_SBUS_READ (unhandled)\n");
		break;
	case ST90TDS_SBUS_WRITE:
		pr_info("ETF_SBUS_WRITE (unhandled)\n");
		break;
	case ST90TDS_SET_DEVICE_OPTION:
		pr_info("ETF_SET_DEV_OPT (unhandled)\n");
		break;
	default:
		pr_info("ETF_PASSTHRU (0x%08x)\n", msg->id);
		rval = wsm_raw_cmd(priv, (u8 *)msg, len);
		break;
	}

	return rval;
}
#endif /* CONFIG_CW1200_ETF */
Commit	Line	Data
a910e4a9 SP	1	/*
	2	* mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
	3	* DebugFS code
	4	*
	5	* Copyright (c) 2010, ST-Ericsson
	6	* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#include <linux/module.h>
	14	#include <linux/debugfs.h>
	15	#include <linux/seq_file.h>
	16	#include "cw1200.h"
	17	#include "debug.h"
	18	#include "fwio.h"
	19
	20	/* join_status */
	21	static const char * const cw1200_debug_join_status[] = {
	22	"passive",
	23	"monitor",
	24	"station (joining)",
	25	"station (not authenticated yet)",
	26	"station",
	27	"adhoc",
	28	"access point",
	29	};
	30
	31	/* WSM_JOIN_PREAMBLE_... */
	32	static const char * const cw1200_debug_preamble[] = {
	33	"long",
	34	"short",
	35	"long on 1 and 2 Mbps",
	36	};
	37
	38
	39	static const char * const cw1200_debug_link_id[] = {
	40	"OFF",
	41	"REQ",
	42	"SOFT",
	43	"HARD",
	44	};
	45
	46	static const char *cw1200_debug_mode(int mode)
	47	{
	48	switch (mode) {
	49	case NL80211_IFTYPE_UNSPECIFIED:
	50	return "unspecified";
	51	case NL80211_IFTYPE_MONITOR:
	52	return "monitor";
	53	case NL80211_IFTYPE_STATION:
	54	return "station";
	55	case NL80211_IFTYPE_ADHOC:
	56	return "adhoc";
	57	case NL80211_IFTYPE_MESH_POINT:
	58	return "mesh point";
	59	case NL80211_IFTYPE_AP:
	60	return "access point";
	61	case NL80211_IFTYPE_P2P_CLIENT:
	62	return "p2p client";
	63	case NL80211_IFTYPE_P2P_GO:
	64	return "p2p go";
65	default:
66	return "unsupported";
67	}
68	}
69
70	static void cw1200_queue_status_show(struct seq_file *seq,
71	struct cw1200_queue *q)
72	{
73	int i;
74	seq_printf(seq, "Queue %d:\n", q->queue_id);
75	seq_printf(seq, " capacity: %zu\n", q->capacity);
76	seq_printf(seq, " queued: %zu\n", q->num_queued);
77	seq_printf(seq, " pending: %zu\n", q->num_pending);
78	seq_printf(seq, " sent: %zu\n", q->num_sent);
79	seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
80	seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
81	seq_puts(seq, " link map: 0-> ");
82	for (i = 0; i < q->stats->map_capacity; ++i)
83	seq_printf(seq, "%.2d ", q->link_map_cache[i]);
84	seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
85	}
86
87	static void cw1200_debug_print_map(struct seq_file *seq,
88	struct cw1200_common *priv,
89	const char *label,
90	u32 map)
91	{
92	int i;
93	seq_printf(seq, "%s0-> ", label);
94	for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
95	seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
96	seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
97	}
98
99	static int cw1200_status_show(struct seq_file seq, void v)
100	{
101	int i;
102	struct list_head *item;
103	struct cw1200_common *priv = seq->private;
104	struct cw1200_debug_priv *d = priv->debug;
105
106	seq_puts(seq, "CW1200 Wireless LAN driver status\n");
107	seq_printf(seq, "Hardware: %d.%d\n",
108	priv->wsm_caps.hw_id,
109	priv->wsm_caps.hw_subid);
110	seq_printf(seq, "Firmware: %s %d.%d\n",
111	cw1200_fw_types[priv->wsm_caps.fw_type],
112	priv->wsm_caps.fw_ver,
113	priv->wsm_caps.fw_build);
114	seq_printf(seq, "FW API: %d\n",
115	priv->wsm_caps.fw_api);
116	seq_printf(seq, "FW caps: 0x%.4X\n",
117	priv->wsm_caps.fw_cap);
118	seq_printf(seq, "FW label: '%s'\n",
119	priv->wsm_caps.fw_label);
120	seq_printf(seq, "Mode: %s%s\n",
121	cw1200_debug_mode(priv->mode),
122	priv->listening ? " (listening)" : "");
123	seq_printf(seq, "Join state: %s\n",
124	cw1200_debug_join_status[priv->join_status]);
125	if (priv->channel)
126	seq_printf(seq, "Channel: %d%s\n",
127	priv->channel->hw_value,
128	priv->channel_switch_in_progress ?
129	" (switching)" : "");
130	if (priv->rx_filter.promiscuous)
131	seq_puts(seq, "Filter: promisc\n");
132	else if (priv->rx_filter.fcs)
133	seq_puts(seq, "Filter: fcs\n");
134	if (priv->rx_filter.bssid)
135	seq_puts(seq, "Filter: bssid\n");
136	if (!priv->disable_beacon_filter)
137	seq_puts(seq, "Filter: beacons\n");
138
139	if (priv->enable_beacon \|\|
140	priv->mode == NL80211_IFTYPE_AP \|\|
141	priv->mode == NL80211_IFTYPE_ADHOC \|\|
142	priv->mode == NL80211_IFTYPE_MESH_POINT \|\|
143	priv->mode == NL80211_IFTYPE_P2P_GO)
144	seq_printf(seq, "Beaconing: %s\n",
145	priv->enable_beacon ?
146	"enabled" : "disabled");
147
148	for (i = 0; i < 4; ++i)
149	seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
150	priv->edca.params[i].cwmin,
151	priv->edca.params[i].cwmax,
152	priv->edca.params[i].aifns,
153	priv->edca.params[i].txop_limit,
154	priv->edca.params[i].max_rx_lifetime);
155
156	if (priv->join_status == CW1200_JOIN_STATUS_STA) {
157	static const char *pm_mode = "unknown";
158	switch (priv->powersave_mode.mode) {
159	case WSM_PSM_ACTIVE:
160	pm_mode = "off";
161	break;
162	case WSM_PSM_PS:
163	pm_mode = "on";
164	break;
165	case WSM_PSM_FAST_PS:
166	pm_mode = "dynamic";
167	break;
168	}
169	seq_printf(seq, "Preamble: %s\n",
170	cw1200_debug_preamble[priv->association_mode.preamble]);
171	seq_printf(seq, "AMPDU spcn: %d\n",
172	priv->association_mode.mpdu_start_spacing);
173	seq_printf(seq, "Basic rate: 0x%.8X\n",
174	le32_to_cpu(priv->association_mode.basic_rate_set));
175	seq_printf(seq, "Bss lost: %d beacons\n",
176	priv->bss_params.beacon_lost_count);
177	seq_printf(seq, "AID: %d\n",
178	priv->bss_params.aid);
179	seq_printf(seq, "Rates: 0x%.8X\n",
180	priv->bss_params.operational_rate_set);
181	seq_printf(seq, "Powersave: %s\n", pm_mode);
182	}
183	seq_printf(seq, "HT: %s\n",
184	cw1200_is_ht(&priv->ht_info) ? "on" : "off");
185	if (cw1200_is_ht(&priv->ht_info)) {
186	seq_printf(seq, "Greenfield: %s\n",
187	cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
188	seq_printf(seq, "AMPDU dens: %d\n",
189	cw1200_ht_ampdu_density(&priv->ht_info));
190	}
191	seq_printf(seq, "RSSI thold: %d\n",
192	priv->cqm_rssi_thold);
193	seq_printf(seq, "RSSI hyst: %d\n",
194	priv->cqm_rssi_hyst);
195	seq_printf(seq, "Long retr: %d\n",
196	priv->long_frame_max_tx_count);
197	seq_printf(seq, "Short retr: %d\n",
198	priv->short_frame_max_tx_count);
199	spin_lock_bh(&priv->tx_policy_cache.lock);
200	i = 0;
201	list_for_each(item, &priv->tx_policy_cache.used)
202	++i;
203	spin_unlock_bh(&priv->tx_policy_cache.lock);
204	seq_printf(seq, "RC in use: %d\n", i);
205
206	seq_puts(seq, "\n");
207	for (i = 0; i < 4; ++i) {
208	cw1200_queue_status_show(seq, &priv->tx_queue[i]);
209	seq_puts(seq, "\n");
210	}
211
212	cw1200_debug_print_map(seq, priv, "Link map: ",
213	priv->link_id_map);
214	cw1200_debug_print_map(seq, priv, "Asleep map: ",
215	priv->sta_asleep_mask);
216	cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
217	priv->pspoll_mask);
218
219	seq_puts(seq, "\n");
220
221	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
222	if (priv->link_id_db[i].status) {
223	seq_printf(seq, "Link %d: %s, %pM\n",
224	i + 1,
225	cw1200_debug_link_id[priv->link_id_db[i].status],
226	priv->link_id_db[i].mac);
227	}
228	}
229
230	seq_puts(seq, "\n");
231
232	seq_printf(seq, "BH status: %s\n",
233	atomic_read(&priv->bh_term) ? "terminated" : "alive");
234	seq_printf(seq, "Pending RX: %d\n",
235	atomic_read(&priv->bh_rx));
236	seq_printf(seq, "Pending TX: %d\n",
237	atomic_read(&priv->bh_tx));
238	if (priv->bh_error)
239	seq_printf(seq, "BH errcode: %d\n",
240	priv->bh_error);
241	seq_printf(seq, "TX bufs: %d x %d bytes\n",
242	priv->wsm_caps.input_buffers,
243	priv->wsm_caps.input_buffer_size);
244	seq_printf(seq, "Used bufs: %d\n",
245	priv->hw_bufs_used);
246	seq_printf(seq, "Powermgmt: %s\n",
247	priv->powersave_enabled ? "on" : "off");
248	seq_printf(seq, "Device: %s\n",
249	priv->device_can_sleep ? "asleep" : "awake");
250
251	spin_lock(&priv->wsm_cmd.lock);
252	seq_printf(seq, "WSM status: %s\n",
253	priv->wsm_cmd.done ? "idle" : "active");
254	seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
255	priv->wsm_cmd.cmd, priv->wsm_cmd.len);
256	seq_printf(seq, "WSM retval: %d\n",
257	priv->wsm_cmd.ret);
258	spin_unlock(&priv->wsm_cmd.lock);
259
260	seq_printf(seq, "Datapath: %s\n",
261	atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
262	if (atomic_read(&priv->tx_lock))
263	seq_printf(seq, "TXlock cnt: %d\n",
264	atomic_read(&priv->tx_lock));
265
266	seq_printf(seq, "TXed: %d\n",
267	d->tx);
268	seq_printf(seq, "AGG TXed: %d\n",
269	d->tx_agg);
270	seq_printf(seq, "MULTI TXed: %d (%d)\n",
271	d->tx_multi, d->tx_multi_frames);
272	seq_printf(seq, "RXed: %d\n",
273	d->rx);
274	seq_printf(seq, "AGG RXed: %d\n",
275	d->rx_agg);
276	seq_printf(seq, "TX miss: %d\n",
277	d->tx_cache_miss);
278	seq_printf(seq, "TX align: %d\n",
279	d->tx_align);
280	seq_printf(seq, "TX burst: %d\n",
281	d->tx_burst);
282	seq_printf(seq, "TX TTL: %d\n",
283	d->tx_ttl);
284	seq_printf(seq, "Scan: %s\n",
285	atomic_read(&priv->scan.in_progress) ? "active" : "idle");
286
287	return 0;
288	}
289
290	static int cw1200_status_open(struct inode inode, struct file file)
291	{
292	return single_open(file, &cw1200_status_show,
293	inode->i_private);
294	}
295
296	static const struct file_operations fops_status = {
297	.open = cw1200_status_open,
298	.read = seq_read,
299	.llseek = seq_lseek,
300	.release = single_release,
301	.owner = THIS_MODULE,
302	};
303
304	static int cw1200_counters_show(struct seq_file seq, void v)
305	{
306	int ret;
307	struct cw1200_common *priv = seq->private;
308	struct wsm_mib_counters_table counters;
309
310	ret = wsm_get_counters_table(priv, &counters);
311	if (ret)
312	return ret;
313
314	#define PUT_COUNTER(tab, name) \
315	seq_printf(seq, "%s:" tab "%d\n", #name, \
316	__le32_to_cpu(counters.name))
317
318	PUT_COUNTER("\t\t", plcp_errors);
319	PUT_COUNTER("\t\t", fcs_errors);
320	PUT_COUNTER("\t\t", tx_packets);
321	PUT_COUNTER("\t\t", rx_packets);
322	PUT_COUNTER("\t\t", rx_packet_errors);
323	PUT_COUNTER("\t", rx_decryption_failures);
324	PUT_COUNTER("\t\t", rx_mic_failures);
325	PUT_COUNTER("\t", rx_no_key_failures);
326	PUT_COUNTER("\t", tx_multicast_frames);
327	PUT_COUNTER("\t", tx_frames_success);
328	PUT_COUNTER("\t", tx_frame_failures);
329	PUT_COUNTER("\t", tx_frames_retried);
330	PUT_COUNTER("\t", tx_frames_multi_retried);
331	PUT_COUNTER("\t", rx_frame_duplicates);
332	PUT_COUNTER("\t\t", rts_success);
333	PUT_COUNTER("\t\t", rts_failures);
334	PUT_COUNTER("\t\t", ack_failures);
335	PUT_COUNTER("\t", rx_multicast_frames);
336	PUT_COUNTER("\t", rx_frames_success);
337	PUT_COUNTER("\t", rx_cmac_icv_errors);
338	PUT_COUNTER("\t\t", rx_cmac_replays);
339	PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
340
341	#undef PUT_COUNTER
342
343	return 0;
344	}
345
346	static int cw1200_counters_open(struct inode inode, struct file file)
347	{
348	return single_open(file, &cw1200_counters_show,
349	inode->i_private);
350	}
351
352	static const struct file_operations fops_counters = {
353	.open = cw1200_counters_open,
354	.read = seq_read,
355	.llseek = seq_lseek,
356	.release = single_release,
357	.owner = THIS_MODULE,
358	};
359
a910e4a9 SP	360	#ifdef CONFIG_CW1200_ETF
	361	static int cw1200_etf_out_show(struct seq_file seq, void v)
	362	{
	363	struct cw1200_common *priv = seq->private;
	364	struct sk_buff *skb;
	365	u32 len = 0;
	366
	367	skb = skb_dequeue(&priv->etf_q);
	368
	369	if (skb)
	370	len = skb->len;
	371
	372	seq_write(seq, &len, sizeof(len));
	373
	374	if (skb) {
	375	seq_write(seq, skb->data, len);
	376	kfree_skb(skb);
	377	}
	378
	379	return 0;
	380	}
	381
	382	static int cw1200_etf_out_open(struct inode inode, struct file file)
	383	{
	384	return single_open(file, &cw1200_etf_out_show,
	385	inode->i_private);
	386	}
	387
	388	static const struct file_operations fops_etf_out = {
	389	.open = cw1200_etf_out_open,
	390	.read = seq_read,
	391	.llseek = seq_lseek,
	392	.release = single_release,
	393	.owner = THIS_MODULE,
	394	};
	395
	396	struct etf_req_msg;
	397	static int etf_request(struct cw1200_common *priv,
	398	struct etf_req_msg *msg, u32 len);
	399
aa63e18e	400	#define MAX_RX_SIZE 2600
a910e4a9 SP	401
	402	struct etf_in_state {
	403	struct cw1200_common *priv;
aa63e18e SP	404	u16 total_len;
	405	u16 written;
	406	u8 buf[MAX_RX_SIZE];
a910e4a9 SP	407	};
	408
	409	static int cw1200_etf_in_open(struct inode inode, struct file file)
	410	{
	411	struct etf_in_state *etf = kmalloc(sizeof(struct etf_in_state),
	412	GFP_KERNEL);
	413
	414	if (!etf)
	415	return -ENOMEM;
	416
	417	etf->written = 0;
	418	etf->total_len = 0;
	419	etf->priv = inode->i_private;
	420
	421	file->private_data = etf;
	422
	423	return 0;
	424	}
	425
	426	static int cw1200_etf_in_release(struct inode inode, struct file file)
	427	{
	428	kfree(file->private_data);
	429	return 0;
	430	}
	431
	432	static ssize_t cw1200_etf_in_write(struct file *file,
	433	const char __user user_buf, size_t count, loff_t ppos)
	434	{
	435	struct etf_in_state *etf = file->private_data;
	436
	437	ssize_t written = 0;
	438
	439	if (!etf->total_len) {
	440	if (count < sizeof(etf->total_len)) {
	441	pr_err("count < sizeof(total_len)\n");
	442	return -EINVAL;
	443	}
	444
	445	if (copy_from_user(&etf->total_len, user_buf,
	446	sizeof(etf->total_len))) {
	447	pr_err("copy_from_user (len) failed\n");
	448	return -EFAULT;
	449	}
	450
aa63e18e SP	451	if (etf->total_len > MAX_RX_SIZE) {
	452	pr_err("requested length > MAX_RX_SIZE\n");
	453	return -EINVAL;
	454	}
	455
a910e4a9 SP	456	written += sizeof(etf->total_len);
	457	count -= sizeof(etf->total_len);
	458	}
	459
	460	if (!count)
	461	goto done;
	462
aa63e18e SP	463	if (count > (etf->total_len - written)) {
	464	pr_err("Tried to write > MAX_RX_SIZE\n");
	465	return -EINVAL;
	466	}
	467
a910e4a9 SP	468	if (copy_from_user(etf->buf + etf->written, user_buf + written,
	469	count)) {
	470	pr_err("copy_from_user (payload %zu) failed\n", count);
	471	return -EFAULT;
	472	}
	473
	474	written += count;
	475	etf->written += count;
	476
	477	if (etf->written >= etf->total_len) {
	478	if (etf_request(etf->priv, (struct etf_req_msg *)etf->buf,
	479	etf->total_len)) {
	480	pr_err("etf_request failed\n");
	481	return -EIO;
	482	}
	483	}
	484
	485	done:
	486	return written;
	487	}
	488
	489	static const struct file_operations fops_etf_in = {
	490	.open = cw1200_etf_in_open,
	491	.release = cw1200_etf_in_release,
	492	.write = cw1200_etf_in_write,
	493	.llseek = default_llseek,
	494	.owner = THIS_MODULE,
	495	};
	496	#endif /* CONFIG_CW1200_ETF */
	497
	498	static ssize_t cw1200_wsm_dumps(struct file *file,
	499	const char __user user_buf, size_t count, loff_t ppos)
	500	{
	501	struct cw1200_common *priv = file->private_data;
	502	char buf[1];
	503
	504	if (!count)
	505	return -EINVAL;
	506	if (copy_from_user(buf, user_buf, 1))
	507	return -EFAULT;
	508
	509	if (buf[0] == '1')
	510	priv->wsm_enable_wsm_dumps = 1;
	511	else
	512	priv->wsm_enable_wsm_dumps = 0;
	513
	514	return count;
	515	}
	516
	517	static const struct file_operations fops_wsm_dumps = {
c0dc79d6	518	.open = simple_open,
a910e4a9 SP	519	.write = cw1200_wsm_dumps,
	520	.llseek = default_llseek,
	521	};
	522
	523	int cw1200_debug_init(struct cw1200_common *priv)
	524	{
	525	int ret = -ENOMEM;
	526	struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
	527	GFP_KERNEL);
	528	priv->debug = d;
	529	if (!d)
	530	return ret;
	531
	532	d->debugfs_phy = debugfs_create_dir("cw1200",
	533	priv->hw->wiphy->debugfsdir);
	534	if (!d->debugfs_phy)
	535	goto err;
	536
	537	if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
	538	priv, &fops_status))
	539	goto err;
	540
	541	if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
	542	priv, &fops_counters))
	543	goto err;
	544
	545	#ifdef CONFIG_CW1200_ETF
	546	if (etf_mode) {
	547	skb_queue_head_init(&priv->etf_q);
	548
	549	if (!debugfs_create_file("etf_out", S_IRUSR, d->debugfs_phy,
	550	priv, &fops_etf_out))
	551	goto err;
	552	if (!debugfs_create_file("etf_in", S_IWUSR, d->debugfs_phy,
	553	priv, &fops_etf_in))
	554	goto err;
	555	}
	556	#endif /* CONFIG_CW1200_ETF */
	557
	558	if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
	559	priv, &fops_wsm_dumps))
	560	goto err;
	561
	562	ret = cw1200_itp_init(priv);
	563	if (ret)
	564	goto err;
	565
	566	return 0;
	567
	568	err:
	569	priv->debug = NULL;
	570	debugfs_remove_recursive(d->debugfs_phy);
	571	kfree(d);
	572	return ret;
	573	}
	574
	575	void cw1200_debug_release(struct cw1200_common *priv)
	576	{
	577	struct cw1200_debug_priv *d = priv->debug;
	578	if (d) {
	579	cw1200_itp_release(priv);
	580	priv->debug = NULL;
	581	kfree(d);
	582	}
583	}
584
585	#ifdef CONFIG_CW1200_ETF
586	struct cw1200_sdd {
587	u8 id;
588	u8 len;
589	u8 data[];
590	};
591
592	struct etf_req_msg {
593	u32 id;
594	u32 len;
595	u8 data[];
596	};
597
598	static int parse_sdd_file(struct cw1200_common priv, u8 data, u32 length)
599	{
600	struct cw1200_sdd *ie;
601
602	while (length > 0) {
603	ie = (struct cw1200_sdd *)data;
604	if (ie->id == SDD_REFERENCE_FREQUENCY_ELT_ID) {
605	priv->hw_refclk = cpu_to_le16(((u16 )ie->data));
606	pr_info("Using Reference clock frequency %d KHz\n",
607	priv->hw_refclk);
608	break;
609	}
610
611	length -= ie->len + sizeof(*ie);
612	data += ie->len + sizeof(*ie);
613	}
614	return 0;
615	}
616
617	char *etf_firmware;
618
619	#define ST90TDS_START_ADAPTER 0x09 /* Loads firmware too */
620	#define ST90TDS_STOP_ADAPTER 0x0A
621	#define ST90TDS_CONFIG_ADAPTER 0x0E /* Send configuration params */
622	#define ST90TDS_SBUS_READ 0x13
623	#define ST90TDS_SBUS_WRITE 0x14
624	#define ST90TDS_GET_DEVICE_OPTION 0x19
625	#define ST90TDS_SET_DEVICE_OPTION 0x1A
626	#define ST90TDS_SEND_SDD 0x1D /* SDD File used to find DPLL */
627
628	#include "fwio.h"
629
630	static int etf_request(struct cw1200_common *priv,
631	struct etf_req_msg *msg,
632	u32 len)
633	{
634	int rval = -1;
635	switch (msg->id) {
636	case ST90TDS_START_ADAPTER:
637	etf_firmware = "cw1200_etf.bin";
638	pr_info("ETF_START (len %d, '%s')\n", len, etf_firmware);
639	rval = cw1200_load_firmware(priv);
640	break;
641	case ST90TDS_STOP_ADAPTER:
642	pr_info("ETF_STOP (unhandled)\n");
643	break;
644	case ST90TDS_SEND_SDD:
645	pr_info("ETF_SDD\n");
646	rval = parse_sdd_file(priv, msg->data, msg->len);
647	break;
648	case ST90TDS_CONFIG_ADAPTER:
649	pr_info("ETF_CONFIG_ADAP (unhandled)\n");
650	break;
651	case ST90TDS_SBUS_READ:
652	pr_info("ETF_SBUS_READ (unhandled)\n");
653	break;
654	case ST90TDS_SBUS_WRITE:
655	pr_info("ETF_SBUS_WRITE (unhandled)\n");
656	break;
657	case ST90TDS_SET_DEVICE_OPTION:
658	pr_info("ETF_SET_DEV_OPT (unhandled)\n");
659	break;
660	default:
661	pr_info("ETF_PASSTHRU (0x%08x)\n", msg->id);
662	rval = wsm_raw_cmd(priv, (u8 *)msg, len);
663	break;
664	}
665
666	return rval;
667	}
668	#endif /* CONFIG_CW1200_ETF */