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authorDaniel Drake <dsd@gentoo.org>2006-06-02 12:11:32 -0400
committerJeff Garzik <jeff@garzik.org>2006-07-05 13:42:58 -0400
commite85d0918b54fbd9b38003752f7d665416b06edd8 (patch)
tree6f53e6bb10562eec331defc6811fb6d434eb21e5 /drivers/net/wireless/zd1211rw/zd_rf_al2230.c
parent4a232e725b5cc1bc7fc5b177424a9ff8313b23ad (diff)
[PATCH] ZyDAS ZD1211 USB-WLAN driver
There are 60+ USB wifi adapters available on the market based on the ZyDAS ZD1211 chip. Unlike the predecessor (ZD1201), ZD1211 does not have a hardware MAC, so most data operations are coordinated by the device driver. The ZD1211 chip sits alongside an RF transceiver which is also controlled by the driver. Our driver currently supports 2 RF types, we know of one other available in a few marketed products which we will be supporting soon. Our driver also supports the newer revision of ZD1211, called ZD1211B. The initialization and RF operations are slightly different for the new revision, but the main difference is 802.11e support. Our driver does not support the QoS features yet, but we think we know how to use them. This driver is based on ZyDAS's own GPL driver available from www.zydas.com.tw. ZyDAS engineers have been responsive and supportive of our efforts, so thumbs up to them. Additionally, the firmware is redistributable and they have provided device specs. This driver has been written primarily by Ulrich Kunitz and myself. Graham Gower, Greg KH, Remco and Bryan Rittmeyer have also contributed. The developers of ieee80211 and softmac have made our lives so much easier- thanks! We maintain a small info-page: http://zd1211.ath.cx/wiki/DriverRewrite If there is enough time for review, we would like to aim for inclusion in 2.6.18. The driver works nicely as a STA, and can connect to both open and encrypted networks (we are using software-based encryption for now). We will work towards supporting more advanced features in the future (ad-hoc, master mode, 802.11a, ...). Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/zd1211rw/zd_rf_al2230.c')
-rw-r--r--drivers/net/wireless/zd1211rw/zd_rf_al2230.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_rf_al2230.c b/drivers/net/wireless/zd1211rw/zd_rf_al2230.c
new file mode 100644
index 000000000000..0948b25f660d
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_rf_al2230.c
@@ -0,0 +1,308 @@
1/* zd_rf_al2230.c: Functions for the AL2230 RF controller
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/kernel.h>
19
20#include "zd_rf.h"
21#include "zd_usb.h"
22#include "zd_chip.h"
23
24static const u32 al2230_table[][3] = {
25 RF_CHANNEL( 1) = { 0x03f790, 0x033331, 0x00000d, },
26 RF_CHANNEL( 2) = { 0x03f790, 0x0b3331, 0x00000d, },
27 RF_CHANNEL( 3) = { 0x03e790, 0x033331, 0x00000d, },
28 RF_CHANNEL( 4) = { 0x03e790, 0x0b3331, 0x00000d, },
29 RF_CHANNEL( 5) = { 0x03f7a0, 0x033331, 0x00000d, },
30 RF_CHANNEL( 6) = { 0x03f7a0, 0x0b3331, 0x00000d, },
31 RF_CHANNEL( 7) = { 0x03e7a0, 0x033331, 0x00000d, },
32 RF_CHANNEL( 8) = { 0x03e7a0, 0x0b3331, 0x00000d, },
33 RF_CHANNEL( 9) = { 0x03f7b0, 0x033331, 0x00000d, },
34 RF_CHANNEL(10) = { 0x03f7b0, 0x0b3331, 0x00000d, },
35 RF_CHANNEL(11) = { 0x03e7b0, 0x033331, 0x00000d, },
36 RF_CHANNEL(12) = { 0x03e7b0, 0x0b3331, 0x00000d, },
37 RF_CHANNEL(13) = { 0x03f7c0, 0x033331, 0x00000d, },
38 RF_CHANNEL(14) = { 0x03e7c0, 0x066661, 0x00000d, },
39};
40
41static int zd1211_al2230_init_hw(struct zd_rf *rf)
42{
43 int r;
44 struct zd_chip *chip = zd_rf_to_chip(rf);
45
46 static const struct zd_ioreq16 ioreqs[] = {
47 { CR15, 0x20 }, { CR23, 0x40 }, { CR24, 0x20 },
48 { CR26, 0x11 }, { CR28, 0x3e }, { CR29, 0x00 },
49 { CR44, 0x33 }, { CR106, 0x2a }, { CR107, 0x1a },
50 { CR109, 0x09 }, { CR110, 0x27 }, { CR111, 0x2b },
51 { CR112, 0x2b }, { CR119, 0x0a }, { CR10, 0x89 },
52 /* for newest (3rd cut) AL2300 */
53 { CR17, 0x28 },
54 { CR26, 0x93 }, { CR34, 0x30 },
55 /* for newest (3rd cut) AL2300 */
56 { CR35, 0x3e },
57 { CR41, 0x24 }, { CR44, 0x32 },
58 /* for newest (3rd cut) AL2300 */
59 { CR46, 0x96 },
60 { CR47, 0x1e }, { CR79, 0x58 }, { CR80, 0x30 },
61 { CR81, 0x30 }, { CR87, 0x0a }, { CR89, 0x04 },
62 { CR92, 0x0a }, { CR99, 0x28 }, { CR100, 0x00 },
63 { CR101, 0x13 }, { CR102, 0x27 }, { CR106, 0x24 },
64 { CR107, 0x2a }, { CR109, 0x09 }, { CR110, 0x13 },
65 { CR111, 0x1f }, { CR112, 0x1f }, { CR113, 0x27 },
66 { CR114, 0x27 },
67 /* for newest (3rd cut) AL2300 */
68 { CR115, 0x24 },
69 { CR116, 0x24 }, { CR117, 0xf4 }, { CR118, 0xfc },
70 { CR119, 0x10 }, { CR120, 0x4f }, { CR121, 0x77 },
71 { CR122, 0xe0 }, { CR137, 0x88 }, { CR252, 0xff },
72 { CR253, 0xff },
73
74 /* These following happen separately in the vendor driver */
75 { },
76
77 /* shdnb(PLL_ON)=0 */
78 { CR251, 0x2f },
79 /* shdnb(PLL_ON)=1 */
80 { CR251, 0x3f },
81 { CR138, 0x28 }, { CR203, 0x06 },
82 };
83
84 static const u32 rv[] = {
85 /* Channel 1 */
86 0x03f790,
87 0x033331,
88 0x00000d,
89
90 0x0b3331,
91 0x03b812,
92 0x00fff3,
93 0x000da4,
94 0x0f4dc5, /* fix freq shift, 0x04edc5 */
95 0x0805b6,
96 0x011687,
97 0x000688,
98 0x0403b9, /* external control TX power (CR31) */
99 0x00dbba,
100 0x00099b,
101 0x0bdffc,
102 0x00000d,
103 0x00500f,
104
105 /* These writes happen separately in the vendor driver */
106 0x00d00f,
107 0x004c0f,
108 0x00540f,
109 0x00700f,
110 0x00500f,
111 };
112
113 r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
114 if (r)
115 return r;
116
117 r = zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
118 if (r)
119 return r;
120
121 return 0;
122}
123
124static int zd1211b_al2230_init_hw(struct zd_rf *rf)
125{
126 int r;
127 struct zd_chip *chip = zd_rf_to_chip(rf);
128
129 static const struct zd_ioreq16 ioreqs1[] = {
130 { CR10, 0x89 }, { CR15, 0x20 },
131 { CR17, 0x2B }, /* for newest(3rd cut) AL2230 */
132 { CR23, 0x40 }, { CR24, 0x20 }, { CR26, 0x93 },
133 { CR28, 0x3e }, { CR29, 0x00 },
134 { CR33, 0x28 }, /* 5621 */
135 { CR34, 0x30 },
136 { CR35, 0x3e }, /* for newest(3rd cut) AL2230 */
137 { CR41, 0x24 }, { CR44, 0x32 },
138 { CR46, 0x99 }, /* for newest(3rd cut) AL2230 */
139 { CR47, 0x1e },
140
141 /* ZD1211B 05.06.10 */
142 { CR48, 0x00 }, { CR49, 0x00 }, { CR51, 0x01 },
143 { CR52, 0x80 }, { CR53, 0x7e }, { CR65, 0x00 },
144 { CR66, 0x00 }, { CR67, 0x00 }, { CR68, 0x00 },
145 { CR69, 0x28 },
146
147 { CR79, 0x58 }, { CR80, 0x30 }, { CR81, 0x30 },
148 { CR87, 0x0a }, { CR89, 0x04 },
149 { CR91, 0x00 }, /* 5621 */
150 { CR92, 0x0a },
151 { CR98, 0x8d }, /* 4804, for 1212 new algorithm */
152 { CR99, 0x00 }, /* 5621 */
153 { CR101, 0x13 }, { CR102, 0x27 },
154 { CR106, 0x24 }, /* for newest(3rd cut) AL2230 */
155 { CR107, 0x2a },
156 { CR109, 0x13 }, /* 4804, for 1212 new algorithm */
157 { CR110, 0x1f }, /* 4804, for 1212 new algorithm */
158 { CR111, 0x1f }, { CR112, 0x1f }, { CR113, 0x27 },
159 { CR114, 0x27 },
160 { CR115, 0x26 }, /* 24->26 at 4902 for newest(3rd cut) AL2230 */
161 { CR116, 0x24 },
162 { CR117, 0xfa }, /* for 1211b */
163 { CR118, 0xfa }, /* for 1211b */
164 { CR119, 0x10 },
165 { CR120, 0x4f },
166 { CR121, 0x6c }, /* for 1211b */
167 { CR122, 0xfc }, /* E0->FC at 4902 */
168 { CR123, 0x57 }, /* 5623 */
169 { CR125, 0xad }, /* 4804, for 1212 new algorithm */
170 { CR126, 0x6c }, /* 5614 */
171 { CR127, 0x03 }, /* 4804, for 1212 new algorithm */
172 { CR137, 0x50 }, /* 5614 */
173 { CR138, 0xa8 },
174 { CR144, 0xac }, /* 5621 */
175 { CR150, 0x0d }, { CR252, 0x00 }, { CR253, 0x00 },
176 };
177
178 static const u32 rv1[] = {
179 /* channel 1 */
180 0x03f790,
181 0x033331,
182 0x00000d,
183
184 0x0b3331,
185 0x03b812,
186 0x00fff3,
187 0x0005a4,
188 0x0f4dc5, /* fix freq shift 0x044dc5 */
189 0x0805b6,
190 0x0146c7,
191 0x000688,
192 0x0403b9, /* External control TX power (CR31) */
193 0x00dbba,
194 0x00099b,
195 0x0bdffc,
196 0x00000d,
197 0x00580f,
198 };
199
200 static const struct zd_ioreq16 ioreqs2[] = {
201 { CR47, 0x1e }, { CR_RFCFG, 0x03 },
202 };
203
204 static const u32 rv2[] = {
205 0x00880f,
206 0x00080f,
207 };
208
209 static const struct zd_ioreq16 ioreqs3[] = {
210 { CR_RFCFG, 0x00 }, { CR47, 0x1e }, { CR251, 0x7f },
211 };
212
213 static const u32 rv3[] = {
214 0x00d80f,
215 0x00780f,
216 0x00580f,
217 };
218
219 static const struct zd_ioreq16 ioreqs4[] = {
220 { CR138, 0x28 }, { CR203, 0x06 },
221 };
222
223 r = zd_iowrite16a_locked(chip, ioreqs1, ARRAY_SIZE(ioreqs1));
224 if (r)
225 return r;
226 r = zd_rfwritev_locked(chip, rv1, ARRAY_SIZE(rv1), RF_RV_BITS);
227 if (r)
228 return r;
229 r = zd_iowrite16a_locked(chip, ioreqs2, ARRAY_SIZE(ioreqs2));
230 if (r)
231 return r;
232 r = zd_rfwritev_locked(chip, rv2, ARRAY_SIZE(rv2), RF_RV_BITS);
233 if (r)
234 return r;
235 r = zd_iowrite16a_locked(chip, ioreqs3, ARRAY_SIZE(ioreqs3));
236 if (r)
237 return r;
238 r = zd_rfwritev_locked(chip, rv3, ARRAY_SIZE(rv3), RF_RV_BITS);
239 if (r)
240 return r;
241 return zd_iowrite16a_locked(chip, ioreqs4, ARRAY_SIZE(ioreqs4));
242}
243
244static int al2230_set_channel(struct zd_rf *rf, u8 channel)
245{
246 int r;
247 const u32 *rv = al2230_table[channel-1];
248 struct zd_chip *chip = zd_rf_to_chip(rf);
249 static const struct zd_ioreq16 ioreqs[] = {
250 { CR138, 0x28 },
251 { CR203, 0x06 },
252 };
253
254 r = zd_rfwritev_locked(chip, rv, 3, RF_RV_BITS);
255 if (r)
256 return r;
257 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
258}
259
260static int zd1211_al2230_switch_radio_on(struct zd_rf *rf)
261{
262 struct zd_chip *chip = zd_rf_to_chip(rf);
263 static const struct zd_ioreq16 ioreqs[] = {
264 { CR11, 0x00 },
265 { CR251, 0x3f },
266 };
267
268 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
269}
270
271static int zd1211b_al2230_switch_radio_on(struct zd_rf *rf)
272{
273 struct zd_chip *chip = zd_rf_to_chip(rf);
274 static const struct zd_ioreq16 ioreqs[] = {
275 { CR11, 0x00 },
276 { CR251, 0x7f },
277 };
278
279 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
280}
281
282static int al2230_switch_radio_off(struct zd_rf *rf)
283{
284 struct zd_chip *chip = zd_rf_to_chip(rf);
285 static const struct zd_ioreq16 ioreqs[] = {
286 { CR11, 0x04 },
287 { CR251, 0x2f },
288 };
289
290 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
291}
292
293int zd_rf_init_al2230(struct zd_rf *rf)
294{
295 struct zd_chip *chip = zd_rf_to_chip(rf);
296
297 rf->set_channel = al2230_set_channel;
298 rf->switch_radio_off = al2230_switch_radio_off;
299 if (chip->is_zd1211b) {
300 rf->init_hw = zd1211b_al2230_init_hw;
301 rf->switch_radio_on = zd1211b_al2230_switch_radio_on;
302 } else {
303 rf->init_hw = zd1211_al2230_init_hw;
304 rf->switch_radio_on = zd1211_al2230_switch_radio_on;
305 }
306 rf->patch_6m_band_edge = 1;
307 return 0;
308}
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