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e85d0918 DD |
1 | /* zd_rf.c |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2 of the License, or | |
6 | * (at your option) any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | */ | |
17 | ||
18 | #include <linux/errno.h> | |
19 | #include <linux/string.h> | |
20 | ||
21 | #include "zd_def.h" | |
22 | #include "zd_rf.h" | |
23 | #include "zd_ieee80211.h" | |
24 | #include "zd_chip.h" | |
25 | ||
26 | static const char *rfs[] = { | |
27 | [0] = "unknown RF0", | |
28 | [1] = "unknown RF1", | |
29 | [UW2451_RF] = "UW2451_RF", | |
30 | [UCHIP_RF] = "UCHIP_RF", | |
31 | [AL2230_RF] = "AL2230_RF", | |
32 | [AL7230B_RF] = "AL7230B_RF", | |
33 | [THETA_RF] = "THETA_RF", | |
34 | [AL2210_RF] = "AL2210_RF", | |
35 | [MAXIM_NEW_RF] = "MAXIM_NEW_RF", | |
36 | [UW2453_RF] = "UW2453_RF", | |
37 | [AL2230S_RF] = "AL2230S_RF", | |
38 | [RALINK_RF] = "RALINK_RF", | |
39 | [INTERSIL_RF] = "INTERSIL_RF", | |
40 | [RF2959_RF] = "RF2959_RF", | |
41 | [MAXIM_NEW2_RF] = "MAXIM_NEW2_RF", | |
42 | [PHILIPS_RF] = "PHILIPS_RF", | |
43 | }; | |
44 | ||
45 | const char *zd_rf_name(u8 type) | |
46 | { | |
47 | if (type & 0xf0) | |
48 | type = 0; | |
49 | return rfs[type]; | |
50 | } | |
51 | ||
52 | void zd_rf_init(struct zd_rf *rf) | |
53 | { | |
54 | memset(rf, 0, sizeof(*rf)); | |
55 | } | |
56 | ||
57 | void zd_rf_clear(struct zd_rf *rf) | |
58 | { | |
59 | memset(rf, 0, sizeof(*rf)); | |
60 | } | |
61 | ||
62 | int zd_rf_init_hw(struct zd_rf *rf, u8 type) | |
63 | { | |
64 | int r, t; | |
65 | struct zd_chip *chip = zd_rf_to_chip(rf); | |
66 | ||
67 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
68 | switch (type) { | |
69 | case RF2959_RF: | |
70 | r = zd_rf_init_rf2959(rf); | |
71 | if (r) | |
72 | return r; | |
73 | break; | |
74 | case AL2230_RF: | |
75 | r = zd_rf_init_al2230(rf); | |
76 | if (r) | |
77 | return r; | |
78 | break; | |
ec62bd91 DD |
79 | case AL7230B_RF: |
80 | r = zd_rf_init_al7230b(rf); | |
81 | if (r) | |
82 | return r; | |
83 | break; | |
e85d0918 DD |
84 | default: |
85 | dev_err(zd_chip_dev(chip), | |
86 | "RF %s %#x is not supported\n", zd_rf_name(type), type); | |
87 | rf->type = 0; | |
88 | return -ENODEV; | |
89 | } | |
90 | ||
91 | rf->type = type; | |
92 | ||
93 | r = zd_chip_lock_phy_regs(chip); | |
94 | if (r) | |
95 | return r; | |
96 | t = rf->init_hw(rf); | |
97 | r = zd_chip_unlock_phy_regs(chip); | |
98 | if (t) | |
99 | r = t; | |
100 | return r; | |
101 | } | |
102 | ||
103 | int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size) | |
104 | { | |
105 | return scnprintf(buffer, size, "%s", zd_rf_name(rf->type)); | |
106 | } | |
107 | ||
108 | int zd_rf_set_channel(struct zd_rf *rf, u8 channel) | |
109 | { | |
110 | int r; | |
111 | ||
112 | ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex)); | |
113 | if (channel < MIN_CHANNEL24) | |
114 | return -EINVAL; | |
115 | if (channel > MAX_CHANNEL24) | |
116 | return -EINVAL; | |
117 | dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel); | |
118 | ||
119 | r = rf->set_channel(rf, channel); | |
120 | if (r >= 0) | |
121 | rf->channel = channel; | |
122 | return r; | |
123 | } | |
124 | ||
125 | int zd_switch_radio_on(struct zd_rf *rf) | |
126 | { | |
127 | int r, t; | |
128 | struct zd_chip *chip = zd_rf_to_chip(rf); | |
129 | ||
130 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
131 | r = zd_chip_lock_phy_regs(chip); | |
132 | if (r) | |
133 | return r; | |
134 | t = rf->switch_radio_on(rf); | |
135 | r = zd_chip_unlock_phy_regs(chip); | |
136 | if (t) | |
137 | r = t; | |
138 | return r; | |
139 | } | |
140 | ||
141 | int zd_switch_radio_off(struct zd_rf *rf) | |
142 | { | |
143 | int r, t; | |
144 | struct zd_chip *chip = zd_rf_to_chip(rf); | |
145 | ||
146 | /* TODO: move phy regs handling to zd_chip */ | |
147 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
148 | r = zd_chip_lock_phy_regs(chip); | |
149 | if (r) | |
150 | return r; | |
151 | t = rf->switch_radio_off(rf); | |
152 | r = zd_chip_unlock_phy_regs(chip); | |
153 | if (t) | |
154 | r = t; | |
155 | return r; | |
156 | } |