1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Broadcom B43 wireless driver
4 * IEEE 802.11ac AC-PHY support
5 *
6 * Copyright (c) 2015 Rafał Miłecki <zajec5@gmail.com>
7 */
8
9 #include "b43.h"
10 #include "phy_ac.h"
11
12 /**************************************************
13 * Basic PHY ops
14 **************************************************/
15
b43_phy_ac_op_allocate(struct b43_wldev * dev)16 static int b43_phy_ac_op_allocate(struct b43_wldev *dev)
17 {
18 struct b43_phy_ac *phy_ac;
19
20 phy_ac = kzalloc(sizeof(*phy_ac), GFP_KERNEL);
21 if (!phy_ac)
22 return -ENOMEM;
23 dev->phy.ac = phy_ac;
24
25 return 0;
26 }
27
b43_phy_ac_op_free(struct b43_wldev * dev)28 static void b43_phy_ac_op_free(struct b43_wldev *dev)
29 {
30 struct b43_phy *phy = &dev->phy;
31 struct b43_phy_ac *phy_ac = phy->ac;
32
33 kfree(phy_ac);
34 phy->ac = NULL;
35 }
36
b43_phy_ac_op_maskset(struct b43_wldev * dev,u16 reg,u16 mask,u16 set)37 static void b43_phy_ac_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
38 u16 set)
39 {
40 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
41 b43_write16(dev, B43_MMIO_PHY_DATA,
42 (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
43 }
44
b43_phy_ac_op_radio_read(struct b43_wldev * dev,u16 reg)45 static u16 b43_phy_ac_op_radio_read(struct b43_wldev *dev, u16 reg)
46 {
47 b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
48 return b43_read16(dev, B43_MMIO_RADIO24_DATA);
49 }
50
b43_phy_ac_op_radio_write(struct b43_wldev * dev,u16 reg,u16 value)51 static void b43_phy_ac_op_radio_write(struct b43_wldev *dev, u16 reg,
52 u16 value)
53 {
54 b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
55 b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
56 }
57
b43_phy_ac_op_get_default_chan(struct b43_wldev * dev)58 static unsigned int b43_phy_ac_op_get_default_chan(struct b43_wldev *dev)
59 {
60 if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
61 return 11;
62 return 36;
63 }
64
65 static enum b43_txpwr_result
b43_phy_ac_op_recalc_txpower(struct b43_wldev * dev,bool ignore_tssi)66 b43_phy_ac_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
67 {
68 return B43_TXPWR_RES_DONE;
69 }
70
b43_phy_ac_op_adjust_txpower(struct b43_wldev * dev)71 static void b43_phy_ac_op_adjust_txpower(struct b43_wldev *dev)
72 {
73 }
74
75 /**************************************************
76 * PHY ops struct
77 **************************************************/
78
79 const struct b43_phy_operations b43_phyops_ac = {
80 .allocate = b43_phy_ac_op_allocate,
81 .free = b43_phy_ac_op_free,
82 .phy_maskset = b43_phy_ac_op_maskset,
83 .radio_read = b43_phy_ac_op_radio_read,
84 .radio_write = b43_phy_ac_op_radio_write,
85 .get_default_chan = b43_phy_ac_op_get_default_chan,
86 .recalc_txpower = b43_phy_ac_op_recalc_txpower,
87 .adjust_txpower = b43_phy_ac_op_adjust_txpower,
88 };
89