From 96c755a3923748313851da42018c962f5609942f Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Sun, 6 Jan 2008 00:09:46 +0100 Subject: [PATCH] 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: Michael Buesch Signed-off-by: John W. Linville --- drivers/net/wireless/b43/b43.h | 15 ++-- drivers/net/wireless/b43/main.c | 137 ++++++++++++-------------------- 2 files changed, 60 insertions(+), 92 deletions(-) diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index c19b773c978..086a9c6c2b0 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -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 diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 39eaeb5598b..7125af6f242 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -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]; - - mode->mode = MODE_IEEE80211G; - mode->num_channels = b43_bg_chantable_size; - mode->channels = b43_bg_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; - } + /* 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_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; 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; -- 2.41.1