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Commit 96c755a3 authored by Michael Buesch's avatar Michael Buesch Committed by David S. Miller
Browse files

b43: Fix any N-PHY related WARN_ON() in the attach stage. 



This fixes all WARN_ON()s in the attach stage.

Signed-off-by: default avatarMichael Buesch <mb@bu3sch.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d5c71e46

drivers/net/wireless/b43/b43.h

+10 −5
Original line number Diff line number Diff line
@@ -328,17 +328,22 @@ enum { 
#define B43_MACCMD_CCA			0x00000008	/* Clear channel assessment */

#define B43_MACCMD_BGNOISE		0x00000010	/* Background noise */



/* 802.11 core specific TM State Low flags */

/* 802.11 core specific TM State Low (SSB_TMSLOW) flags */

#define B43_TMSLOW_GMODE		0x20000000	/* G Mode Enable */

#define B43_TMSLOW_PLLREFSEL		0x00200000	/* PLL Frequency Reference Select */

#define B43_TMSLOW_PHYCLKSPEED		0x00C00000	/* PHY clock speed mask (N-PHY only) */

#define  B43_TMSLOW_PHYCLKSPEED_40MHZ	0x00000000	/* 40 MHz PHY */

#define  B43_TMSLOW_PHYCLKSPEED_80MHZ	0x00400000	/* 80 MHz PHY */

#define  B43_TMSLOW_PHYCLKSPEED_160MHZ	0x00800000	/* 160 MHz PHY */

#define B43_TMSLOW_PLLREFSEL		0x00200000	/* PLL Frequency Reference Select (rev >= 5) */

#define B43_TMSLOW_MACPHYCLKEN		0x00100000	/* MAC PHY Clock Control Enable (rev >= 5) */

#define B43_TMSLOW_PHYRESET		0x00080000	/* PHY Reset */

#define B43_TMSLOW_PHYCLKEN		0x00040000	/* PHY Clock Enable */



/* 802.11 core specific TM State High flags */

/* 802.11 core specific TM State High (SSB_TMSHIGH) flags */

#define B43_TMSHIGH_DUALBAND_PHY	0x00080000	/* Dualband PHY available */

#define B43_TMSHIGH_FCLOCK		0x00040000	/* Fast Clock Available (rev >= 5) */

#define B43_TMSHIGH_APHY		0x00020000	/* A-PHY available (rev >= 5) */

#define B43_TMSHIGH_GPHY		0x00010000	/* G-PHY available (rev >= 5) */

#define B43_TMSHIGH_HAVE_5GHZ_PHY	0x00020000	/* 5 GHz PHY available (rev >= 5) */

#define B43_TMSHIGH_HAVE_2GHZ_PHY	0x00010000	/* 2.4 GHz PHY available (rev >= 5) */



/* Generic-Interrupt reasons. */

#define B43_IRQ_MAC_SUSPENDED		0x00000001

drivers/net/wireless/b43/main.c

+50 −87
Original line number Diff line number Diff line
@@ -132,7 +132,7 @@ static struct ieee80211_rate __b43_ratetable[] = { 
		.power_level	= 0xFF,				\

		.antenna_max	= 0xFF,				\

	}

static struct ieee80211_channel b43_bg_chantable[] = {

static struct ieee80211_channel b43_2ghz_chantable[] = {

	CHANTAB_ENT(1, 2412),

	CHANTAB_ENT(2, 2417),

	CHANTAB_ENT(3, 2422),
@@ -148,9 +148,10 @@ static struct ieee80211_channel b43_bg_chantable[] = { 
	CHANTAB_ENT(13, 2472),

	CHANTAB_ENT(14, 2484),

};

#define b43_2ghz_chantable_size	ARRAY_SIZE(b43_2ghz_chantable)



#define b43_bg_chantable_size	ARRAY_SIZE(b43_bg_chantable)

static struct ieee80211_channel b43_a_chantable[] = {

#if 0

static struct ieee80211_channel b43_5ghz_chantable[] = {

	CHANTAB_ENT(36, 5180),

	CHANTAB_ENT(40, 5200),

	CHANTAB_ENT(44, 5220),
@@ -165,8 +166,8 @@ static struct ieee80211_channel b43_a_chantable[] = { 
	CHANTAB_ENT(161, 5805),

	CHANTAB_ENT(165, 5825),

};



#define b43_a_chantable_size	ARRAY_SIZE(b43_a_chantable)

#define b43_5ghz_chantable_size	ARRAY_SIZE(b43_5ghz_chantable)

#endif



static void b43_wireless_core_exit(struct b43_wldev *dev);

static int b43_wireless_core_init(struct b43_wldev *dev);
@@ -1614,7 +1615,7 @@ static int b43_request_firmware(struct b43_wldev *dev) 
		switch (dev->phy.type) {

		case B43_PHYTYPE_A:

			if ((rev >= 5) && (rev <= 10)) {

				if (tmshigh & B43_TMSHIGH_GPHY)

				if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)

					filename = "a0g1initvals5";

				else

					filename = "a0g0initvals5";
@@ -1640,7 +1641,7 @@ static int b43_request_firmware(struct b43_wldev *dev) 
		switch (dev->phy.type) {

		case B43_PHYTYPE_A:

			if ((rev >= 5) && (rev <= 10)) {

				if (tmshigh & B43_TMSHIGH_GPHY)

				if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)

					filename = "a0g1bsinitvals5";

				else

					filename = "a0g0bsinitvals5";
@@ -3090,6 +3091,8 @@ static int b43_phy_versioning(struct b43_wldev *dev) 
	radio_manuf = (tmp & 0x00000FFF);

	radio_ver = (tmp & 0x0FFFF000) >> 12;

	radio_rev = (tmp & 0xF0000000) >> 28;

	if (radio_manuf != 0x17F /* Broadcom */)

		unsupported = 1;

	switch (phy_type) {

	case B43_PHYTYPE_A:

		if (radio_ver != 0x2060)
@@ -3107,6 +3110,10 @@ static int b43_phy_versioning(struct b43_wldev *dev) 
		if (radio_ver != 0x2050)

			unsupported = 1;

		break;

	case B43_PHYTYPE_N:

		if (radio_ver != 5)

			unsupported = 1;

		break;

	default:

		B43_WARN_ON(1);

	}
@@ -3610,72 +3617,30 @@ static void b43_chip_reset(struct work_struct *work) 
}



static int b43_setup_modes(struct b43_wldev *dev,

			   int have_aphy, int have_bphy, int have_gphy)

			   bool have_2ghz_phy, bool have_5ghz_phy)

{

	struct ieee80211_hw *hw = dev->wl->hw;

	struct ieee80211_hw_mode *mode;

	struct b43_phy *phy = &dev->phy;

	int cnt = 0;

	int err;



/*FIXME: Don't tell ieee80211 about an A-PHY, because we currently don't support A-PHY. */

	have_aphy = 0;



	phy->possible_phymodes = 0;

	for (; 1; cnt++) {

		if (have_aphy) {

			B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);

			mode = &phy->hwmodes[cnt];



			mode->mode = MODE_IEEE80211A;

			mode->num_channels = b43_a_chantable_size;

			mode->channels = b43_a_chantable;

			mode->num_rates = b43_a_ratetable_size;

			mode->rates = b43_a_ratetable;

			err = ieee80211_register_hwmode(hw, mode);

			if (err)

				return err;



			phy->possible_phymodes |= B43_PHYMODE_A;

			have_aphy = 0;

			continue;

		}

		if (have_bphy) {

			B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);

			mode = &phy->hwmodes[cnt];



			mode->mode = MODE_IEEE80211B;

			mode->num_channels = b43_bg_chantable_size;

			mode->channels = b43_bg_chantable;

			mode->num_rates = b43_b_ratetable_size;

			mode->rates = b43_b_ratetable;

			err = ieee80211_register_hwmode(hw, mode);

			if (err)

				return err;



			phy->possible_phymodes |= B43_PHYMODE_B;

			have_bphy = 0;

			continue;

		}

		if (have_gphy) {

			B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES);

			mode = &phy->hwmodes[cnt];

	/* XXX: This function will go away soon, when mac80211

	 *      band stuff is rewritten. So this is just a hack.

	 *      For now we always claim GPHY mode, as there is no

	 *      support for NPHY and APHY in the device, yet.

	 *      This assumption is OK, as any B, N or A PHY will already

	 *      have died a horrible sanity check death earlier. */



	mode = &phy->hwmodes[0];

	mode->mode = MODE_IEEE80211G;

			mode->num_channels = b43_bg_chantable_size;

			mode->channels = b43_bg_chantable;

	mode->num_channels = b43_2ghz_chantable_size;

	mode->channels = b43_2ghz_chantable;

	mode->num_rates = b43_g_ratetable_size;

	mode->rates = b43_g_ratetable;

	err = ieee80211_register_hwmode(hw, mode);

	if (err)

		return err;



	phy->possible_phymodes |= B43_PHYMODE_G;

			have_gphy = 0;

			continue;

		}

		break;

	}



	return 0;

}
@@ -3693,7 +3658,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) 
	struct ssb_bus *bus = dev->dev->bus;

	struct pci_dev *pdev = bus->host_pci;

	int err;

	int have_aphy = 0, have_bphy = 0, have_gphy = 0;

	bool have_2ghz_phy = 0, have_5ghz_phy = 0;

	u32 tmp;



	/* Do NOT do any device initialization here.
@@ -3713,17 +3678,12 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) 
		u32 tmshigh;



		tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);

		have_aphy = !!(tmshigh & B43_TMSHIGH_APHY);

		have_gphy = !!(tmshigh & B43_TMSHIGH_GPHY);

		if (!have_aphy && !have_gphy)

			have_bphy = 1;

	} else if (dev->dev->id.revision == 4) {

		have_gphy = 1;

		have_aphy = 1;

		have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);

		have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);

	} else

		have_bphy = 1;

		B43_WARN_ON(1);



	dev->phy.gmode = (have_gphy || have_bphy);

	dev->phy.gmode = have_2ghz_phy;

	tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;

	b43_wireless_core_reset(dev, tmp);
@@ -3735,31 +3695,34 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) 
	    (pdev->device != 0x4312 &&

	     pdev->device != 0x4319 && pdev->device != 0x4324)) {

		/* No multiband support. */

		have_aphy = 0;

		have_bphy = 0;

		have_gphy = 0;

		have_2ghz_phy = 0;

		have_5ghz_phy = 0;

		switch (dev->phy.type) {

		case B43_PHYTYPE_A:

			have_aphy = 1;

			break;

		case B43_PHYTYPE_B:

			have_bphy = 1;

			have_5ghz_phy = 1;

			break;

		case B43_PHYTYPE_G:

			have_gphy = 1;

		case B43_PHYTYPE_N:

			have_2ghz_phy = 1;

			break;

		default:

			B43_WARN_ON(1);

		}

	}

	dev->phy.gmode = (have_gphy || have_bphy);

	if (dev->phy.type == B43_PHYTYPE_A) {

		/* FIXME */

		b43err(wl, "IEEE 802.11a devices are unsupported\n");

		err = -EOPNOTSUPP;

		goto err_powerdown;

	}

	dev->phy.gmode = have_2ghz_phy;

	tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;

	b43_wireless_core_reset(dev, tmp);



	err = b43_validate_chipaccess(dev);

	if (err)

		goto err_powerdown;

	err = b43_setup_modes(dev, have_aphy, have_bphy, have_gphy);

	err = b43_setup_modes(dev, have_2ghz_phy, have_5ghz_phy);

	if (err)

		goto err_powerdown;