summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/zd1211rw/zd_rf.c
blob: 549c23bcd6ccce78b752060892f0326d6b54b57d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/* zd_rf.c
 *
 * 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
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/errno.h>
#include <linux/string.h>

#include "zd_def.h"
#include "zd_rf.h"
#include "zd_ieee80211.h"
#include "zd_chip.h"

static const char * const rfs[] = {
	[0]		= "unknown RF0",
	[1]		= "unknown RF1",
	[UW2451_RF]	= "UW2451_RF",
	[UCHIP_RF]	= "UCHIP_RF",
	[AL2230_RF]	= "AL2230_RF",
	[AL7230B_RF]	= "AL7230B_RF",
	[THETA_RF]	= "THETA_RF",
	[AL2210_RF]	= "AL2210_RF",
	[MAXIM_NEW_RF]	= "MAXIM_NEW_RF",
	[UW2453_RF]	= "UW2453_RF",
	[UNKNOWN_A_RF]	= "UNKNOWN_A_RF",
	[RALINK_RF]	= "RALINK_RF",
	[INTERSIL_RF]	= "INTERSIL_RF",
	[RF2959_RF]	= "RF2959_RF",
	[MAXIM_NEW2_RF]	= "MAXIM_NEW2_RF",
	[PHILIPS_RF]	= "PHILIPS_RF",
};

const char *zd_rf_name(u8 type)
{
	if (type & 0xf0)
		type = 0;
	return rfs[type];
}

void zd_rf_init(struct zd_rf *rf)
{
	memset(rf, 0, sizeof(*rf));
}

void zd_rf_clear(struct zd_rf *rf)
{
	ZD_MEMCLEAR(rf, sizeof(*rf));
}

int zd_rf_init_hw(struct zd_rf *rf, u8 type)
{
	int r, t;
	struct zd_chip *chip = zd_rf_to_chip(rf);

	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	switch (type) {
	case RF2959_RF:
		r = zd_rf_init_rf2959(rf);
		if (r)
			return r;
		break;
	case AL2230_RF:
		r = zd_rf_init_al2230(rf);
		if (r)
			return r;
		break;
	case AL7230B_RF:
		r = zd_rf_init_al7230b(rf);
		if (r)
			return r;
		break;
	default:
		dev_err(zd_chip_dev(chip),
			"RF %s %#x is not supported\n", zd_rf_name(type), type);
		rf->type = 0;
		return -ENODEV;
	}

	rf->type = type;

	r = zd_chip_lock_phy_regs(chip);
	if (r)
		return r;
	t = rf->init_hw(rf);
	r = zd_chip_unlock_phy_regs(chip);
	if (t)
		r = t;
	return r;
}

int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size)
{
	return scnprintf(buffer, size, "%s", zd_rf_name(rf->type));
}

int zd_rf_set_channel(struct zd_rf *rf, u8 channel)
{
	int r;

	ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex));
	if (channel < MIN_CHANNEL24)
		return -EINVAL;
	if (channel > MAX_CHANNEL24)
		return -EINVAL;
	dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel);

	r = rf->set_channel(rf, channel);
	if (r >= 0)
		rf->channel = channel;
	return r;
}

int zd_switch_radio_on(struct zd_rf *rf)
{
	int r, t;
	struct zd_chip *chip = zd_rf_to_chip(rf);

	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	r = zd_chip_lock_phy_regs(chip);
	if (r)
		return r;
	t = rf->switch_radio_on(rf);
	r = zd_chip_unlock_phy_regs(chip);
	if (t)
		r = t;
	return r;
}

int zd_switch_radio_off(struct zd_rf *rf)
{
	int r, t;
	struct zd_chip *chip = zd_rf_to_chip(rf);

	/* TODO: move phy regs handling to zd_chip */
	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	r = zd_chip_lock_phy_regs(chip);
	if (r)
		return r;
	t = rf->switch_radio_off(rf);
	r = zd_chip_unlock_phy_regs(chip);
	if (t)
		r = t;
	return r;
}

int zd_rf_patch_6m_band_edge(struct zd_rf *rf, u8 channel)
{
	if (!rf->patch_6m_band_edge)
		return 0;

	return rf->patch_6m_band_edge(rf, channel);
}

int zd_rf_generic_patch_6m(struct zd_rf *rf, u8 channel)
{
	return zd_chip_generic_patch_6m_band(zd_rf_to_chip(rf), channel);
}