[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / brcm80211 / brcmfmac / feature.c

/*
 * Copyright (c) 2014 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/netdevice.h>

#include <brcm_hw_ids.h>
#include "dhd.h"
#include "dhd_bus.h"
#include "dhd_dbg.h"
#include "fwil.h"
#include "feature.h"

/*
 * expand feature list to array of feature strings.
 */
#define BRCMF_FEAT_DEF(_f) \
	#_f,
static const char *brcmf_feat_names[] = {
	BRCMF_FEAT_LIST
};
#undef BRCMF_FEAT_DEF

#ifdef DEBUG
/*
 * expand quirk list to array of quirk strings.
 */
#define BRCMF_QUIRK_DEF(_q) \
	#_q,
static const char * const brcmf_quirk_names[] = {
	BRCMF_QUIRK_LIST
};
#undef BRCMF_QUIRK_DEF

/**
 * brcmf_feat_debugfs_read() - expose feature info to debugfs.
 *
 * @seq: sequence for debugfs entry.
 * @data: raw data pointer.
 */
static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data)
{
	struct brcmf_bus *bus_if = dev_get_drvdata(seq->private);
	u32 feats = bus_if->drvr->feat_flags;
	u32 quirks = bus_if->drvr->chip_quirks;
	int id;

	seq_printf(seq, "Features: %08x\n", feats);
	for (id = 0; id < BRCMF_FEAT_LAST; id++)
		if (feats & BIT(id))
			seq_printf(seq, "\t%s\n", brcmf_feat_names[id]);
	seq_printf(seq, "\nQuirks:   %08x\n", quirks);
	for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++)
		if (quirks & BIT(id))
			seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]);
	return 0;
}
#else
static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data)
{
	return 0;
}
#endif /* DEBUG */

/**
 * brcmf_feat_iovar_int_get() - determine feature through iovar query.
 *
 * @ifp: interface to query.
 * @id: feature id.
 * @name: iovar name.
 */
static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
				     enum brcmf_feat_id id, char *name)
{
	u32 data;
	int err;

	err = brcmf_fil_iovar_int_get(ifp, name, &data);
	if (err == 0) {
		brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
		ifp->drvr->feat_flags |= BIT(id);
	} else {
		brcmf_dbg(TRACE, "%s feature check failed: %d\n",
			  brcmf_feat_names[id], err);
	}
}

void brcmf_feat_attach(struct brcmf_pub *drvr)
{
	struct brcmf_if *ifp = drvr->iflist[0];

	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
	if (drvr->bus_if->wowl_supported)
		brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");

	/* set chip related quirks */
	switch (drvr->bus_if->chip) {
	case BRCM_CC_43236_CHIP_ID:
		drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH);
		break;
	case BRCM_CC_4329_CHIP_ID:
		drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC);
		break;
	default:
		/* no quirks */
		break;
	}

	brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
}

bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id)
{
	return (ifp->drvr->feat_flags & BIT(id));
}

bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
				 enum brcmf_feat_quirk quirk)
{
	return (ifp->drvr->chip_quirks & BIT(quirk));
}
Commit	Line	Data
c08437b4 AS	1	/*
	2	* Copyright (c) 2014 Broadcom Corporation
	3	*
	4	* Permission to use, copy, modify, and/or distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
	11	* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
	13	* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
	14	* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#include <linux/netdevice.h>
	18
	19	#include <brcm_hw_ids.h>
	20	#include "dhd.h"
	21	#include "dhd_bus.h"
	22	#include "dhd_dbg.h"
	23	#include "fwil.h"
	24	#include "feature.h"
	25
c08437b4 AS	26	/*
	27	* expand feature list to array of feature strings.
	28	*/
	29	#define BRCMF_FEAT_DEF(_f) \
	30	#_f,
	31	static const char *brcmf_feat_names[] = {
	32	BRCMF_FEAT_LIST
	33	};
	34	#undef BRCMF_FEAT_DEF
	35
	36	#ifdef DEBUG
	37	/*
	38	* expand quirk list to array of quirk strings.
	39	*/
	40	#define BRCMF_QUIRK_DEF(_q) \
	41	#_q,
	42	static const char * const brcmf_quirk_names[] = {
	43	BRCMF_QUIRK_LIST
	44	};
	45	#undef BRCMF_QUIRK_DEF
	46
	47	/**
	48	* brcmf_feat_debugfs_read() - expose feature info to debugfs.
	49	*
	50	* @seq: sequence for debugfs entry.
	51	* @data: raw data pointer.
	52	*/
	53	static int brcmf_feat_debugfs_read(struct seq_file seq, void data)
	54	{
	55	struct brcmf_bus *bus_if = dev_get_drvdata(seq->private);
	56	u32 feats = bus_if->drvr->feat_flags;
	57	u32 quirks = bus_if->drvr->chip_quirks;
	58	int id;
	59
	60	seq_printf(seq, "Features: %08x\n", feats);
	61	for (id = 0; id < BRCMF_FEAT_LAST; id++)
	62	if (feats & BIT(id))
	63	seq_printf(seq, "\t%s\n", brcmf_feat_names[id]);
	64	seq_printf(seq, "\nQuirks: %08x\n", quirks);
	65	for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++)
	66	if (quirks & BIT(id))
	67	seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]);
	68	return 0;
	69	}
	70	#else
	71	static int brcmf_feat_debugfs_read(struct seq_file seq, void data)
	72	{
	73	return 0;
	74	}
	75	#endif /* DEBUG */
	76
	77	/**
	78	* brcmf_feat_iovar_int_get() - determine feature through iovar query.
	79	*
	80	* @ifp: interface to query.
	81	* @id: feature id.
	82	* @name: iovar name.
	83	*/
	84	static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
	85	enum brcmf_feat_id id, char *name)
	86	{
	87	u32 data;
	88	int err;
	89
90	err = brcmf_fil_iovar_int_get(ifp, name, &data);
91	if (err == 0) {
92	brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
93	ifp->drvr->feat_flags \|= BIT(id);
94	} else {
95	brcmf_dbg(TRACE, "%s feature check failed: %d\n",
96	brcmf_feat_names[id], err);
97	}
98	}
99
100	void brcmf_feat_attach(struct brcmf_pub *drvr)
101	{
102	struct brcmf_if *ifp = drvr->iflist[0];
103
104	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
4eb3af7c HM	105	if (drvr->bus_if->wowl_supported)
4eb3af7c HM	106	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
c08437b4 AS	107
	108	/* set chip related quirks */
	109	switch (drvr->bus_if->chip) {
	110	case BRCM_CC_43236_CHIP_ID:
	111	drvr->chip_quirks \|= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH);
	112	break;
	113	case BRCM_CC_4329_CHIP_ID:
	114	drvr->chip_quirks \|= BIT(BRCMF_FEAT_QUIRK_NEED_MPC);
	115	break;
	116	default:
	117	/* no quirks */
	118	break;
	119	}
	120
	121	brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
	122	}
	123
	124	bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id)
	125	{
	126	return (ifp->drvr->feat_flags & BIT(id));
	127	}
	128
	129	bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
	130	enum brcmf_feat_quirk quirk)
	131	{
	132	return (ifp->drvr->chip_quirks & BIT(quirk));
	133	}