diff options
Diffstat (limited to 'drivers/net/wireless/b43/phy_lcn.c')
| -rw-r--r-- | drivers/net/wireless/b43/phy_lcn.c | 443 |
1 files changed, 441 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/phy_lcn.c b/drivers/net/wireless/b43/phy_lcn.c index 9f7dbbd5ced6..d1dfeec7bc28 100644 --- a/drivers/net/wireless/b43/phy_lcn.c +++ b/drivers/net/wireless/b43/phy_lcn.c @@ -3,6 +3,8 @@ Broadcom B43 wireless driver IEEE 802.11n LCN-PHY support + Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com> + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or @@ -28,11 +30,449 @@ #include "main.h" /************************************************** + * Radio 2064. + **************************************************/ + +/* wlc_lcnphy_radio_2064_channel_tune_4313 */ +static void b43_radio_2064_channel_setup(struct b43_wldev *dev) +{ + u16 save[2]; + + b43_radio_set(dev, 0x09d, 0x4); + b43_radio_write(dev, 0x09e, 0xf); + + /* Channel specific values in theory, in practice always the same */ + b43_radio_write(dev, 0x02a, 0xb); + b43_radio_maskset(dev, 0x030, ~0x3, 0xa); + b43_radio_maskset(dev, 0x091, ~0x3, 0); + b43_radio_maskset(dev, 0x038, ~0xf, 0x7); + b43_radio_maskset(dev, 0x030, ~0xc, 0x8); + b43_radio_maskset(dev, 0x05e, ~0xf, 0x8); + b43_radio_maskset(dev, 0x05e, ~0xf0, 0x80); + b43_radio_write(dev, 0x06c, 0x80); + + save[0] = b43_radio_read(dev, 0x044); + save[1] = b43_radio_read(dev, 0x12b); + + b43_radio_set(dev, 0x044, 0x7); + b43_radio_set(dev, 0x12b, 0xe); + + /* TODO */ + + b43_radio_write(dev, 0x040, 0xfb); + + b43_radio_write(dev, 0x041, 0x9a); + b43_radio_write(dev, 0x042, 0xa3); + b43_radio_write(dev, 0x043, 0x0c); + + /* TODO */ + + b43_radio_set(dev, 0x044, 0x0c); + udelay(1); + + b43_radio_write(dev, 0x044, save[0]); + b43_radio_write(dev, 0x12b, save[1]); + + if (dev->phy.rev == 1) { + /* brcmsmac uses outdated 0x3 for 0x038 */ + b43_radio_write(dev, 0x038, 0x0); + b43_radio_write(dev, 0x091, 0x7); + } +} + +/* wlc_radio_2064_init */ +static void b43_radio_2064_init(struct b43_wldev *dev) +{ + if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) { + b43_radio_write(dev, 0x09c, 0x0020); + b43_radio_write(dev, 0x105, 0x0008); + } else { + /* TODO */ + } + b43_radio_write(dev, 0x032, 0x0062); + b43_radio_write(dev, 0x033, 0x0019); + b43_radio_write(dev, 0x090, 0x0010); + b43_radio_write(dev, 0x010, 0x0000); + if (dev->phy.rev == 1) { + b43_radio_write(dev, 0x060, 0x007f); + b43_radio_write(dev, 0x061, 0x0072); + b43_radio_write(dev, 0x062, 0x007f); + } + b43_radio_write(dev, 0x01d, 0x0002); + b43_radio_write(dev, 0x01e, 0x0006); + + b43_phy_write(dev, 0x4ea, 0x4688); + b43_phy_maskset(dev, 0x4eb, ~0x7, 0x2); + b43_phy_mask(dev, 0x4eb, ~0x01c0); + b43_phy_maskset(dev, 0x46a, 0xff00, 0x19); + + b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x55), 0); + + b43_radio_mask(dev, 0x05b, (u16) ~0xff02); + b43_radio_set(dev, 0x004, 0x40); + b43_radio_set(dev, 0x120, 0x10); + b43_radio_set(dev, 0x078, 0x80); + b43_radio_set(dev, 0x129, 0x2); + b43_radio_set(dev, 0x057, 0x1); + b43_radio_set(dev, 0x05b, 0x2); + + /* TODO: wait for some bit to be set */ + b43_radio_read(dev, 0x05c); + + b43_radio_mask(dev, 0x05b, (u16) ~0xff02); + b43_radio_mask(dev, 0x057, (u16) ~0xff01); + + b43_phy_write(dev, 0x933, 0x2d6b); + b43_phy_write(dev, 0x934, 0x2d6b); + b43_phy_write(dev, 0x935, 0x2d6b); + b43_phy_write(dev, 0x936, 0x2d6b); + b43_phy_write(dev, 0x937, 0x016b); + + b43_radio_mask(dev, 0x057, (u16) ~0xff02); + b43_radio_write(dev, 0x0c2, 0x006f); +} + +/************************************************** + * Various PHY ops + **************************************************/ + +/* wlc_lcnphy_toggle_afe_pwdn */ +static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev) +{ + u16 afe_ctl2 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL2); + u16 afe_ctl1 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL1); + + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 | 0x1); + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 | 0x1); + + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 & ~0x1); + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 & ~0x1); + + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2); + b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1); +} + +/* wlc_lcnphy_clear_tx_power_offsets */ +static void b43_phy_lcn_clear_tx_power_offsets(struct b43_wldev *dev) +{ + u8 i; + + if (1) { /* FIXME */ + b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x340); + for (i = 0; i < 30; i++) { + b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0); + b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0); + } + } + + b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x80); + for (i = 0; i < 64; i++) { + b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0); + b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0); + } +} + +/* wlc_lcnphy_rev0_baseband_init */ +static void b43_phy_lcn_rev0_baseband_init(struct b43_wldev *dev) +{ + b43_radio_write(dev, 0x11c, 0); + + b43_phy_write(dev, 0x43b, 0); + b43_phy_write(dev, 0x43c, 0); + b43_phy_write(dev, 0x44c, 0); + b43_phy_write(dev, 0x4e6, 0); + b43_phy_write(dev, 0x4f9, 0); + b43_phy_write(dev, 0x4b0, 0); + b43_phy_write(dev, 0x938, 0); + b43_phy_write(dev, 0x4b0, 0); + b43_phy_write(dev, 0x44e, 0); + + b43_phy_set(dev, 0x567, 0x03); + + b43_phy_set(dev, 0x44a, 0x44); + b43_phy_write(dev, 0x44a, 0x80); + + if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM)) + ; /* TODO */ + b43_phy_maskset(dev, 0x634, ~0xff, 0xc); + if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM) { + b43_phy_maskset(dev, 0x634, ~0xff, 0xa); + b43_phy_write(dev, 0x910, 0x1); + } + + b43_phy_write(dev, 0x910, 0x1); + + b43_phy_maskset(dev, 0x448, ~0x300, 0x100); + b43_phy_maskset(dev, 0x608, ~0xff, 0x17); + b43_phy_maskset(dev, 0x604, ~0x7ff, 0x3ea); +} + +/* wlc_lcnphy_bu_tweaks */ +static void b43_phy_lcn_bu_tweaks(struct b43_wldev *dev) +{ + b43_phy_set(dev, 0x805, 0x1); + + b43_phy_maskset(dev, 0x42f, ~0x7, 0x3); + b43_phy_maskset(dev, 0x030, ~0x7, 0x3); + + b43_phy_write(dev, 0x414, 0x1e10); + b43_phy_write(dev, 0x415, 0x0640); + + b43_phy_maskset(dev, 0x4df, (u16) ~0xff00, 0xf700); + + b43_phy_set(dev, 0x44a, 0x44); + b43_phy_write(dev, 0x44a, 0x80); + + b43_phy_maskset(dev, 0x434, ~0xff, 0xfd); + b43_phy_maskset(dev, 0x420, ~0xff, 0x10); + + if (dev->dev->bus_sprom->board_rev >= 0x1204) + b43_radio_set(dev, 0x09b, 0xf0); + + b43_phy_write(dev, 0x7d6, 0x0902); + + /* TODO: more ops */ + + if (dev->phy.rev == 1) { + /* TODO: more ops */ + + b43_phy_lcn_clear_tx_power_offsets(dev); + } +} + +/* wlc_lcnphy_vbat_temp_sense_setup */ +static void b43_phy_lcn_sense_setup(struct b43_wldev *dev) +{ + u8 i; + + u16 save_radio_regs[6][2] = { + { 0x007, 0 }, { 0x0ff, 0 }, { 0x11f, 0 }, { 0x005, 0 }, + { 0x025, 0 }, { 0x112, 0 }, + }; + u16 save_phy_regs[14][2] = { + { 0x503, 0 }, { 0x4a4, 0 }, { 0x4d0, 0 }, { 0x4d9, 0 }, + { 0x4da, 0 }, { 0x4a6, 0 }, { 0x938, 0 }, { 0x939, 0 }, + { 0x4d8, 0 }, { 0x4d0, 0 }, { 0x4d7, 0 }, { 0x4a5, 0 }, + { 0x40d, 0 }, { 0x4a2, 0 }, + }; + u16 save_radio_4a4; + + for (i = 0; i < 6; i++) + save_radio_regs[i][1] = b43_radio_read(dev, + save_radio_regs[i][0]); + for (i = 0; i < 14; i++) + save_phy_regs[i][1] = b43_phy_read(dev, save_phy_regs[i][0]); + save_radio_4a4 = b43_radio_read(dev, 0x4a4); + + /* TODO: config sth */ + + for (i = 0; i < 6; i++) + b43_radio_write(dev, save_radio_regs[i][0], + save_radio_regs[i][1]); + for (i = 0; i < 14; i++) + b43_phy_write(dev, save_phy_regs[i][0], save_phy_regs[i][1]); + b43_radio_write(dev, 0x4a4, save_radio_4a4); +} + +/************************************************** + * Channel switching ops. + **************************************************/ + +static int b43_phy_lcn_set_channel(struct b43_wldev *dev, + struct ieee80211_channel *channel, + enum nl80211_channel_type channel_type) +{ + /* TODO: PLL and PHY ops */ + + b43_phy_set(dev, 0x44a, 0x44); + b43_phy_write(dev, 0x44a, 0x80); + + b43_phy_set(dev, 0x44a, 0x44); + b43_phy_write(dev, 0x44a, 0x80); + + b43_radio_2064_channel_setup(dev); + mdelay(1); + + b43_phy_lcn_afe_set_unset(dev); + + /* TODO */ + + return 0; +} + +/************************************************** + * Basic PHY ops. + **************************************************/ + +static int b43_phy_lcn_op_allocate(struct b43_wldev *dev) +{ + struct b43_phy_lcn *phy_lcn; + + phy_lcn = kzalloc(sizeof(*phy_lcn), GFP_KERNEL); + if (!phy_lcn) + return -ENOMEM; + dev->phy.lcn = phy_lcn; + + return 0; +} + +static void b43_phy_lcn_op_free(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_phy_lcn *phy_lcn = phy->lcn; + + kfree(phy_lcn); + phy->lcn = NULL; +} + +static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_phy_lcn *phy_lcn = phy->lcn; + + memset(phy_lcn, 0, sizeof(*phy_lcn)); +} + +/* wlc_phy_init_lcnphy */ +static int b43_phy_lcn_op_init(struct b43_wldev *dev) +{ + b43_phy_set(dev, 0x44a, 0x80); + b43_phy_mask(dev, 0x44a, 0x7f); + b43_phy_set(dev, 0x6d1, 0x80); + b43_phy_write(dev, 0x6d0, 0x7); + + b43_phy_lcn_afe_set_unset(dev); + + b43_phy_write(dev, 0x60a, 0xa0); + b43_phy_write(dev, 0x46a, 0x19); + b43_phy_maskset(dev, 0x663, 0xFF00, 0x64); + + b43_phy_lcn_tables_init(dev); + + b43_phy_lcn_rev0_baseband_init(dev); + b43_phy_lcn_bu_tweaks(dev); + + if (dev->phy.radio_ver == 0x2064) + b43_radio_2064_init(dev); + else + B43_WARN_ON(1); + + b43_phy_lcn_sense_setup(dev); + + return 0; +} + +static void b43_phy_lcn_op_software_rfkill(struct b43_wldev *dev, + bool blocked) +{ + if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED) + b43err(dev->wl, "MAC not suspended\n"); + + if (blocked) { + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL2, ~0x7c00); + b43_phy_set(dev, B43_PHY_LCN_RF_CTL1, 0x1f00); + + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL5, ~0x7f00); + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL4, ~0x2); + b43_phy_set(dev, B43_PHY_LCN_RF_CTL3, 0x808); + + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL7, ~0x8); + b43_phy_set(dev, B43_PHY_LCN_RF_CTL6, 0x8); + } else { + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL1, ~0x1f00); + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL3, ~0x808); + b43_phy_mask(dev, B43_PHY_LCN_RF_CTL6, ~0x8); + } +} + +static void b43_phy_lcn_op_switch_analog(struct b43_wldev *dev, bool on) +{ + if (on) { + b43_phy_mask(dev, B43_PHY_LCN_AFE_CTL1, ~0x7); + } else { + b43_phy_set(dev, B43_PHY_LCN_AFE_CTL2, 0x7); + b43_phy_set(dev, B43_PHY_LCN_AFE_CTL1, 0x7); + } +} + +static int b43_phy_lcn_op_switch_channel(struct b43_wldev *dev, + unsigned int new_channel) +{ + struct ieee80211_channel *channel = dev->wl->hw->conf.channel; + enum nl80211_channel_type channel_type = dev->wl->hw->conf.channel_type; + + if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) { + if ((new_channel < 1) || (new_channel > 14)) + return -EINVAL; + } else { + return -EINVAL; + } + + return b43_phy_lcn_set_channel(dev, channel, channel_type); +} + +static unsigned int b43_phy_lcn_op_get_default_chan(struct b43_wldev *dev) +{ + if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) + return 1; + return 36; +} + +static enum b43_txpwr_result +b43_phy_lcn_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi) +{ + return B43_TXPWR_RES_DONE; +} + +static void b43_phy_lcn_op_adjust_txpower(struct b43_wldev *dev) +{ +} + +/************************************************** + * R/W ops. + **************************************************/ + +static u16 b43_phy_lcn_op_read(struct b43_wldev *dev, u16 reg) +{ + b43_write16(dev, B43_MMIO_PHY_CONTROL, reg); + return b43_read16(dev, B43_MMIO_PHY_DATA); +} + +static void b43_phy_lcn_op_write(struct b43_wldev *dev, u16 reg, u16 value) +{ + b43_write16(dev, B43_MMIO_PHY_CONTROL, reg); + b43_write16(dev, B43_MMIO_PHY_DATA, value); +} + +static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask, + u16 set) +{ + b43_write16(dev, B43_MMIO_PHY_CONTROL, reg); + b43_write16(dev, B43_MMIO_PHY_DATA, + (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set); +} + +static u16 b43_phy_lcn_op_radio_read(struct b43_wldev *dev, u16 reg) +{ + /* LCN-PHY needs 0x200 for read access */ + reg |= 0x200; + + b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg); + return b43_read16(dev, B43_MMIO_RADIO24_DATA); +} + +static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg, + u16 value) +{ + b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg); + b43_write16(dev, B43_MMIO_RADIO24_DATA, value); +} + +/************************************************** * PHY ops struct. **************************************************/ const struct b43_phy_operations b43_phyops_lcn = { - /* .allocate = b43_phy_lcn_op_allocate, .free = b43_phy_lcn_op_free, .prepare_structs = b43_phy_lcn_op_prepare_structs, @@ -48,5 +488,4 @@ const struct b43_phy_operations b43_phyops_lcn = { .get_default_chan = b43_phy_lcn_op_get_default_chan, .recalc_txpower = b43_phy_lcn_op_recalc_txpower, .adjust_txpower = b43_phy_lcn_op_adjust_txpower, - */ }; 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