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424047e6 MB |
1 | /* |
2 | ||
3 | Broadcom B43 wireless driver | |
4 | IEEE 802.11n PHY support | |
5 | ||
6 | Copyright (c) 2008 Michael Buesch <mb@bu3sch.de> | |
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 as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
21 | Boston, MA 02110-1301, USA. | |
22 | ||
23 | */ | |
24 | ||
819d772b JL |
25 | #include <linux/delay.h> |
26 | #include <linux/types.h> | |
27 | ||
424047e6 MB |
28 | #include "b43.h" |
29 | #include "nphy.h" | |
53a6e234 | 30 | #include "tables_nphy.h" |
424047e6 MB |
31 | |
32 | ||
53a6e234 MB |
33 | void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna) |
34 | {//TODO | |
35 | } | |
36 | ||
37 | void b43_nphy_xmitpower(struct b43_wldev *dev) | |
38 | {//TODO | |
39 | } | |
40 | ||
d1591314 MB |
41 | static void b43_chantab_radio_upload(struct b43_wldev *dev, |
42 | const struct b43_nphy_channeltab_entry *e) | |
43 | { | |
44 | b43_radio_write16(dev, B2055_PLL_REF, e->radio_pll_ref); | |
45 | b43_radio_write16(dev, B2055_RF_PLLMOD0, e->radio_rf_pllmod0); | |
46 | b43_radio_write16(dev, B2055_RF_PLLMOD1, e->radio_rf_pllmod1); | |
47 | b43_radio_write16(dev, B2055_VCO_CAPTAIL, e->radio_vco_captail); | |
48 | b43_radio_write16(dev, B2055_VCO_CAL1, e->radio_vco_cal1); | |
49 | b43_radio_write16(dev, B2055_VCO_CAL2, e->radio_vco_cal2); | |
50 | b43_radio_write16(dev, B2055_PLL_LFC1, e->radio_pll_lfc1); | |
51 | b43_radio_write16(dev, B2055_PLL_LFR1, e->radio_pll_lfr1); | |
52 | b43_radio_write16(dev, B2055_PLL_LFC2, e->radio_pll_lfc2); | |
53 | b43_radio_write16(dev, B2055_LGBUF_CENBUF, e->radio_lgbuf_cenbuf); | |
54 | b43_radio_write16(dev, B2055_LGEN_TUNE1, e->radio_lgen_tune1); | |
55 | b43_radio_write16(dev, B2055_LGEN_TUNE2, e->radio_lgen_tune2); | |
56 | b43_radio_write16(dev, B2055_C1_LGBUF_ATUNE, e->radio_c1_lgbuf_atune); | |
57 | b43_radio_write16(dev, B2055_C1_LGBUF_GTUNE, e->radio_c1_lgbuf_gtune); | |
58 | b43_radio_write16(dev, B2055_C1_RX_RFR1, e->radio_c1_rx_rfr1); | |
59 | b43_radio_write16(dev, B2055_C1_TX_PGAPADTN, e->radio_c1_tx_pgapadtn); | |
60 | b43_radio_write16(dev, B2055_C1_TX_MXBGTRIM, e->radio_c1_tx_mxbgtrim); | |
61 | b43_radio_write16(dev, B2055_C2_LGBUF_ATUNE, e->radio_c2_lgbuf_atune); | |
62 | b43_radio_write16(dev, B2055_C2_LGBUF_GTUNE, e->radio_c2_lgbuf_gtune); | |
63 | b43_radio_write16(dev, B2055_C2_RX_RFR1, e->radio_c2_rx_rfr1); | |
64 | b43_radio_write16(dev, B2055_C2_TX_PGAPADTN, e->radio_c2_tx_pgapadtn); | |
65 | b43_radio_write16(dev, B2055_C2_TX_MXBGTRIM, e->radio_c2_tx_mxbgtrim); | |
66 | } | |
67 | ||
68 | static void b43_chantab_phy_upload(struct b43_wldev *dev, | |
69 | const struct b43_nphy_channeltab_entry *e) | |
70 | { | |
71 | b43_phy_write(dev, B43_NPHY_BW1A, e->phy_bw1a); | |
72 | b43_phy_write(dev, B43_NPHY_BW2, e->phy_bw2); | |
73 | b43_phy_write(dev, B43_NPHY_BW3, e->phy_bw3); | |
74 | b43_phy_write(dev, B43_NPHY_BW4, e->phy_bw4); | |
75 | b43_phy_write(dev, B43_NPHY_BW5, e->phy_bw5); | |
76 | b43_phy_write(dev, B43_NPHY_BW6, e->phy_bw6); | |
77 | } | |
78 | ||
79 | static void b43_nphy_tx_power_fix(struct b43_wldev *dev) | |
80 | { | |
81 | //TODO | |
82 | } | |
83 | ||
53a6e234 MB |
84 | /* Tune the hardware to a new channel. Don't call this directly. |
85 | * Use b43_radio_selectchannel() */ | |
d1591314 | 86 | int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel) |
53a6e234 | 87 | { |
d1591314 MB |
88 | const struct b43_nphy_channeltab_entry *tabent; |
89 | ||
90 | tabent = b43_nphy_get_chantabent(dev, channel); | |
91 | if (!tabent) | |
92 | return -ESRCH; | |
93 | ||
94 | //FIXME enable/disable band select upper20 in RXCTL | |
95 | if (0 /*FIXME 5Ghz*/) | |
96 | b43_radio_maskset(dev, B2055_MASTER1, 0xFF8F, 0x20); | |
97 | else | |
98 | b43_radio_maskset(dev, B2055_MASTER1, 0xFF8F, 0x50); | |
99 | b43_chantab_radio_upload(dev, tabent); | |
100 | udelay(50); | |
101 | b43_radio_write16(dev, B2055_VCO_CAL10, 5); | |
102 | b43_radio_write16(dev, B2055_VCO_CAL10, 45); | |
103 | b43_radio_write16(dev, B2055_VCO_CAL10, 65); | |
104 | udelay(300); | |
105 | if (0 /*FIXME 5Ghz*/) | |
106 | b43_phy_set(dev, B43_NPHY_BANDCTL, B43_NPHY_BANDCTL_5GHZ); | |
107 | else | |
108 | b43_phy_mask(dev, B43_NPHY_BANDCTL, ~B43_NPHY_BANDCTL_5GHZ); | |
109 | b43_chantab_phy_upload(dev, tabent); | |
110 | b43_nphy_tx_power_fix(dev); | |
53a6e234 | 111 | |
d1591314 | 112 | return 0; |
53a6e234 MB |
113 | } |
114 | ||
115 | static void b43_radio_init2055_pre(struct b43_wldev *dev) | |
116 | { | |
117 | b43_phy_mask(dev, B43_NPHY_RFCTL_CMD, | |
118 | ~B43_NPHY_RFCTL_CMD_PORFORCE); | |
119 | b43_phy_set(dev, B43_NPHY_RFCTL_CMD, | |
120 | B43_NPHY_RFCTL_CMD_CHIP0PU | | |
121 | B43_NPHY_RFCTL_CMD_OEPORFORCE); | |
122 | b43_phy_set(dev, B43_NPHY_RFCTL_CMD, | |
123 | B43_NPHY_RFCTL_CMD_PORFORCE); | |
124 | } | |
125 | ||
126 | static void b43_radio_init2055_post(struct b43_wldev *dev) | |
127 | { | |
128 | struct ssb_sprom *sprom = &(dev->dev->bus->sprom); | |
129 | struct ssb_boardinfo *binfo = &(dev->dev->bus->boardinfo); | |
130 | int i; | |
131 | u16 val; | |
132 | ||
133 | b43_radio_mask(dev, B2055_MASTER1, 0xFFF3); | |
134 | msleep(1); | |
135 | if ((sprom->revision != 4) || !(sprom->boardflags_hi & 0x0002)) { | |
136 | if ((binfo->vendor != PCI_VENDOR_ID_BROADCOM) || | |
137 | (binfo->type != 0x46D) || | |
138 | (binfo->rev < 0x41)) { | |
139 | b43_radio_mask(dev, B2055_C1_RX_BB_REG, 0x7F); | |
140 | b43_radio_mask(dev, B2055_C1_RX_BB_REG, 0x7F); | |
141 | msleep(1); | |
142 | } | |
143 | } | |
144 | b43_radio_maskset(dev, B2055_RRCCAL_NOPTSEL, 0x3F, 0x2C); | |
145 | msleep(1); | |
146 | b43_radio_write16(dev, B2055_CAL_MISC, 0x3C); | |
147 | msleep(1); | |
148 | b43_radio_mask(dev, B2055_CAL_MISC, 0xFFBE); | |
149 | msleep(1); | |
150 | b43_radio_set(dev, B2055_CAL_LPOCTL, 0x80); | |
151 | msleep(1); | |
152 | b43_radio_set(dev, B2055_CAL_MISC, 0x1); | |
153 | msleep(1); | |
154 | b43_radio_set(dev, B2055_CAL_MISC, 0x40); | |
155 | msleep(1); | |
156 | for (i = 0; i < 100; i++) { | |
157 | val = b43_radio_read16(dev, B2055_CAL_COUT2); | |
158 | if (val & 0x80) | |
159 | break; | |
160 | udelay(10); | |
161 | } | |
162 | msleep(1); | |
163 | b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F); | |
164 | msleep(1); | |
165 | b43_radio_selectchannel(dev, dev->phy.channel, 0); | |
166 | b43_radio_write16(dev, B2055_C1_RX_BB_LPF, 0x9); | |
167 | b43_radio_write16(dev, B2055_C2_RX_BB_LPF, 0x9); | |
168 | b43_radio_write16(dev, B2055_C1_RX_BB_MIDACHP, 0x83); | |
169 | b43_radio_write16(dev, B2055_C2_RX_BB_MIDACHP, 0x83); | |
170 | } | |
171 | ||
172 | /* Initialize a Broadcom 2055 N-radio */ | |
173 | static void b43_radio_init2055(struct b43_wldev *dev) | |
174 | { | |
175 | b43_radio_init2055_pre(dev); | |
176 | if (b43_status(dev) < B43_STAT_INITIALIZED) | |
177 | b2055_upload_inittab(dev, 0, 1); | |
178 | else | |
179 | b2055_upload_inittab(dev, 0/*FIXME on 5ghz band*/, 0); | |
180 | b43_radio_init2055_post(dev); | |
181 | } | |
182 | ||
183 | void b43_nphy_radio_turn_on(struct b43_wldev *dev) | |
184 | { | |
185 | b43_radio_init2055(dev); | |
186 | } | |
187 | ||
188 | void b43_nphy_radio_turn_off(struct b43_wldev *dev) | |
189 | { | |
190 | b43_phy_mask(dev, B43_NPHY_RFCTL_CMD, | |
191 | ~B43_NPHY_RFCTL_CMD_EN); | |
192 | } | |
193 | ||
424047e6 MB |
194 | int b43_phy_initn(struct b43_wldev *dev) |
195 | { | |
196 | b43err(dev->wl, "IEEE 802.11n devices are not supported, yet.\n"); | |
197 | ||
53a6e234 | 198 | return 0; |
424047e6 | 199 | } |