1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* ZD1211 USB-WLAN driver for Linux
3 *
4 * Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
5 * Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
6 */
7
8 #include <linux/errno.h>
9 #include <linux/string.h>
10
11 #include "zd_def.h"
12 #include "zd_rf.h"
13 #include "zd_mac.h"
14 #include "zd_chip.h"
15
16 static const char * const rfs[] = {
17 [0] = "unknown RF0",
18 [1] = "unknown RF1",
19 [UW2451_RF] = "UW2451_RF",
20 [UCHIP_RF] = "UCHIP_RF",
21 [AL2230_RF] = "AL2230_RF",
22 [AL7230B_RF] = "AL7230B_RF",
23 [THETA_RF] = "THETA_RF",
24 [AL2210_RF] = "AL2210_RF",
25 [MAXIM_NEW_RF] = "MAXIM_NEW_RF",
26 [UW2453_RF] = "UW2453_RF",
27 [AL2230S_RF] = "AL2230S_RF",
28 [RALINK_RF] = "RALINK_RF",
29 [INTERSIL_RF] = "INTERSIL_RF",
30 [RF2959_RF] = "RF2959_RF",
31 [MAXIM_NEW2_RF] = "MAXIM_NEW2_RF",
32 [PHILIPS_RF] = "PHILIPS_RF",
33 };
34
zd_rf_name(u8 type)35 const char *zd_rf_name(u8 type)
36 {
37 if (type & 0xf0)
38 type = 0;
39 return rfs[type];
40 }
41
zd_rf_init(struct zd_rf * rf)42 void zd_rf_init(struct zd_rf *rf)
43 {
44 memset(rf, 0, sizeof(*rf));
45
46 /* default to update channel integration, as almost all RF's do want
47 * this */
48 rf->update_channel_int = 1;
49 }
50
zd_rf_clear(struct zd_rf * rf)51 void zd_rf_clear(struct zd_rf *rf)
52 {
53 if (rf->clear)
54 rf->clear(rf);
55 ZD_MEMCLEAR(rf, sizeof(*rf));
56 }
57
zd_rf_init_hw(struct zd_rf * rf,u8 type)58 int zd_rf_init_hw(struct zd_rf *rf, u8 type)
59 {
60 int r = 0;
61 int t;
62 struct zd_chip *chip = zd_rf_to_chip(rf);
63
64 ZD_ASSERT(mutex_is_locked(&chip->mutex));
65 switch (type) {
66 case RF2959_RF:
67 r = zd_rf_init_rf2959(rf);
68 break;
69 case AL2230_RF:
70 case AL2230S_RF:
71 r = zd_rf_init_al2230(rf);
72 break;
73 case AL7230B_RF:
74 r = zd_rf_init_al7230b(rf);
75 break;
76 case MAXIM_NEW_RF:
77 case UW2453_RF:
78 r = zd_rf_init_uw2453(rf);
79 break;
80 default:
81 dev_err(zd_chip_dev(chip),
82 "RF %s %#x is not supported\n", zd_rf_name(type), type);
83 rf->type = 0;
84 return -ENODEV;
85 }
86
87 if (r)
88 return r;
89
90 rf->type = type;
91
92 r = zd_chip_lock_phy_regs(chip);
93 if (r)
94 return r;
95 t = rf->init_hw(rf);
96 r = zd_chip_unlock_phy_regs(chip);
97 if (t)
98 r = t;
99 return r;
100 }
101
zd_rf_scnprint_id(struct zd_rf * rf,char * buffer,size_t size)102 int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size)
103 {
104 return scnprintf(buffer, size, "%s", zd_rf_name(rf->type));
105 }
106
zd_rf_set_channel(struct zd_rf * rf,u8 channel)107 int zd_rf_set_channel(struct zd_rf *rf, u8 channel)
108 {
109 int r;
110
111 ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex));
112 if (channel < MIN_CHANNEL24)
113 return -EINVAL;
114 if (channel > MAX_CHANNEL24)
115 return -EINVAL;
116 dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel);
117
118 r = rf->set_channel(rf, channel);
119 if (r >= 0)
120 rf->channel = channel;
121 return r;
122 }
123
zd_switch_radio_on(struct zd_rf * rf)124 int zd_switch_radio_on(struct zd_rf *rf)
125 {
126 int r, t;
127 struct zd_chip *chip = zd_rf_to_chip(rf);
128
129 ZD_ASSERT(mutex_is_locked(&chip->mutex));
130 r = zd_chip_lock_phy_regs(chip);
131 if (r)
132 return r;
133 t = rf->switch_radio_on(rf);
134 r = zd_chip_unlock_phy_regs(chip);
135 if (t)
136 r = t;
137 return r;
138 }
139
zd_switch_radio_off(struct zd_rf * rf)140 int zd_switch_radio_off(struct zd_rf *rf)
141 {
142 int r, t;
143 struct zd_chip *chip = zd_rf_to_chip(rf);
144
145 /* TODO: move phy regs handling to zd_chip */
146 ZD_ASSERT(mutex_is_locked(&chip->mutex));
147 r = zd_chip_lock_phy_regs(chip);
148 if (r)
149 return r;
150 t = rf->switch_radio_off(rf);
151 r = zd_chip_unlock_phy_regs(chip);
152 if (t)
153 r = t;
154 return r;
155 }
156
zd_rf_patch_6m_band_edge(struct zd_rf * rf,u8 channel)157 int zd_rf_patch_6m_band_edge(struct zd_rf *rf, u8 channel)
158 {
159 if (!rf->patch_6m_band_edge)
160 return 0;
161
162 return rf->patch_6m_band_edge(rf, channel);
163 }
164
zd_rf_generic_patch_6m(struct zd_rf * rf,u8 channel)165 int zd_rf_generic_patch_6m(struct zd_rf *rf, u8 channel)
166 {
167 return zd_chip_generic_patch_6m_band(zd_rf_to_chip(rf), channel);
168 }
169
170