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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
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')
-rw-r--r--drivers/net/wireless/Kconfig1
-rw-r--r--drivers/net/wireless/Makefile1
-rw-r--r--drivers/net/wireless/zd1211rw/Kconfig19
-rw-r--r--drivers/net/wireless/zd1211rw/Makefile11
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.c1615
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.h825
-rw-r--r--drivers/net/wireless/zd1211rw/zd_def.h48
-rw-r--r--drivers/net/wireless/zd1211rw/zd_ieee80211.c191
-rw-r--r--drivers/net/wireless/zd1211rw/zd_ieee80211.h85
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c1055
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.h190
-rw-r--r--drivers/net/wireless/zd1211rw/zd_netdev.c267
-rw-r--r--drivers/net/wireless/zd1211rw/zd_netdev.h45
-rw-r--r--drivers/net/wireless/zd1211rw/zd_rf.c151
-rw-r--r--drivers/net/wireless/zd1211rw/zd_rf.h82
-rw-r--r--drivers/net/wireless/zd1211rw/zd_rf_al2230.c308
-rw-r--r--drivers/net/wireless/zd1211rw/zd_rf_rf2959.c279
-rw-r--r--drivers/net/wireless/zd1211rw/zd_types.h71
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.c1316
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.h240
-rw-r--r--drivers/net/wireless/zd1211rw/zd_util.c82
-rw-r--r--drivers/net/wireless/zd1211rw/zd_util.h29
22 files changed, 6911 insertions, 0 deletions
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 30ec235e6935..fa9d2c4edc93 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -550,6 +550,7 @@ config USB_ZD1201
550 550
551source "drivers/net/wireless/hostap/Kconfig" 551source "drivers/net/wireless/hostap/Kconfig"
552source "drivers/net/wireless/bcm43xx/Kconfig" 552source "drivers/net/wireless/bcm43xx/Kconfig"
553source "drivers/net/wireless/zd1211rw/Kconfig"
553 554
554# yes, this works even when no drivers are selected 555# yes, this works even when no drivers are selected
555config NET_WIRELESS 556config NET_WIRELESS
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 512603de309a..c613af17a159 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_PRISM54) += prism54/
36 36
37obj-$(CONFIG_HOSTAP) += hostap/ 37obj-$(CONFIG_HOSTAP) += hostap/
38obj-$(CONFIG_BCM43XX) += bcm43xx/ 38obj-$(CONFIG_BCM43XX) += bcm43xx/
39obj-$(CONFIG_ZD1211RW) += zd1211rw/
39 40
40# 16-bit wireless PCMCIA client drivers 41# 16-bit wireless PCMCIA client drivers
41obj-$(CONFIG_PCMCIA_RAYCS) += ray_cs.o 42obj-$(CONFIG_PCMCIA_RAYCS) += ray_cs.o
diff --git a/drivers/net/wireless/zd1211rw/Kconfig b/drivers/net/wireless/zd1211rw/Kconfig
new file mode 100644
index 000000000000..66ed55bc5460
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/Kconfig
@@ -0,0 +1,19 @@
1config ZD1211RW
2 tristate "ZyDAS ZD1211/ZD1211B USB-wireless support"
3 depends on USB && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL
4 select FW_LOADER
5 ---help---
6 This is an experimental driver for the ZyDAS ZD1211/ZD1211B wireless
7 chip, present in many USB-wireless adapters.
8
9 Device firmware is required alongside this driver. You can download the
10 firmware distribution from http://zd1211.ath.cx/get-firmware
11
12config ZD1211RW_DEBUG
13 bool "ZyDAS ZD1211 debugging"
14 depends on ZD1211RW
15 ---help---
16 ZD1211 debugging messages. Choosing Y will result in additional debug
17 messages being saved to your kernel logs, which may help debug any
18 problems.
19
diff --git a/drivers/net/wireless/zd1211rw/Makefile b/drivers/net/wireless/zd1211rw/Makefile
new file mode 100644
index 000000000000..500314fc74d2
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/Makefile
@@ -0,0 +1,11 @@
1obj-$(CONFIG_ZD1211RW) += zd1211rw.o
2
3zd1211rw-objs := zd_chip.o zd_ieee80211.o \
4 zd_mac.o zd_netdev.o \
5 zd_rf_al2230.o zd_rf_rf2959.o \
6 zd_rf.o zd_usb.o zd_util.o
7
8ifeq ($(CONFIG_ZD1211RW_DEBUG),y)
9EXTRA_CFLAGS += -DDEBUG
10endif
11
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
new file mode 100644
index 000000000000..efc9c4bd826f
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -0,0 +1,1615 @@
1/* zd_chip.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/* This file implements all the hardware specific functions for the ZD1211
19 * and ZD1211B chips. Support for the ZD1211B was possible after Timothy
20 * Legge sent me a ZD1211B device. Thank you Tim. -- Uli
21 */
22
23#include <linux/kernel.h>
24#include <linux/errno.h>
25
26#include "zd_def.h"
27#include "zd_chip.h"
28#include "zd_ieee80211.h"
29#include "zd_mac.h"
30#include "zd_rf.h"
31#include "zd_util.h"
32
33void zd_chip_init(struct zd_chip *chip,
34 struct net_device *netdev,
35 struct usb_interface *intf)
36{
37 memset(chip, 0, sizeof(*chip));
38 mutex_init(&chip->mutex);
39 zd_usb_init(&chip->usb, netdev, intf);
40 zd_rf_init(&chip->rf);
41}
42
43void zd_chip_clear(struct zd_chip *chip)
44{
45 mutex_lock(&chip->mutex);
46 zd_usb_clear(&chip->usb);
47 zd_rf_clear(&chip->rf);
48 mutex_unlock(&chip->mutex);
49 mutex_destroy(&chip->mutex);
50 memset(chip, 0, sizeof(*chip));
51}
52
53static int scnprint_mac_oui(const u8 *addr, char *buffer, size_t size)
54{
55 return scnprintf(buffer, size, "%02x-%02x-%02x",
56 addr[0], addr[1], addr[2]);
57}
58
59/* Prints an identifier line, which will support debugging. */
60static int scnprint_id(struct zd_chip *chip, char *buffer, size_t size)
61{
62 int i = 0;
63
64 i = scnprintf(buffer, size, "zd1211%s chip ",
65 chip->is_zd1211b ? "b" : "");
66 i += zd_usb_scnprint_id(&chip->usb, buffer+i, size-i);
67 i += scnprintf(buffer+i, size-i, " ");
68 i += scnprint_mac_oui(chip->e2p_mac, buffer+i, size-i);
69 i += scnprintf(buffer+i, size-i, " ");
70 i += zd_rf_scnprint_id(&chip->rf, buffer+i, size-i);
71 i += scnprintf(buffer+i, size-i, " pa%1x %c%c%c", chip->pa_type,
72 chip->patch_cck_gain ? 'g' : '-',
73 chip->patch_cr157 ? '7' : '-',
74 chip->patch_6m_band_edge ? '6' : '-');
75 return i;
76}
77
78static void print_id(struct zd_chip *chip)
79{
80 char buffer[80];
81
82 scnprint_id(chip, buffer, sizeof(buffer));
83 buffer[sizeof(buffer)-1] = 0;
84 dev_info(zd_chip_dev(chip), "%s\n", buffer);
85}
86
87/* Read a variable number of 32-bit values. Parameter count is not allowed to
88 * exceed USB_MAX_IOREAD32_COUNT.
89 */
90int zd_ioread32v_locked(struct zd_chip *chip, u32 *values, const zd_addr_t *addr,
91 unsigned int count)
92{
93 int r;
94 int i;
95 zd_addr_t *a16 = (zd_addr_t *)NULL;
96 u16 *v16;
97 unsigned int count16;
98
99 if (count > USB_MAX_IOREAD32_COUNT)
100 return -EINVAL;
101
102 /* Allocate a single memory block for values and addresses. */
103 count16 = 2*count;
104 a16 = (zd_addr_t *)kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)),
105 GFP_NOFS);
106 if (!a16) {
107 dev_dbg_f(zd_chip_dev(chip),
108 "error ENOMEM in allocation of a16\n");
109 r = -ENOMEM;
110 goto out;
111 }
112 v16 = (u16 *)(a16 + count16);
113
114 for (i = 0; i < count; i++) {
115 int j = 2*i;
116 /* We read the high word always first. */
117 a16[j] = zd_inc_word(addr[i]);
118 a16[j+1] = addr[i];
119 }
120
121 r = zd_ioread16v_locked(chip, v16, a16, count16);
122 if (r) {
123 dev_dbg_f(zd_chip_dev(chip),
124 "error: zd_ioread16v_locked. Error number %d\n", r);
125 goto out;
126 }
127
128 for (i = 0; i < count; i++) {
129 int j = 2*i;
130 values[i] = (v16[j] << 16) | v16[j+1];
131 }
132
133out:
134 kfree((void *)a16);
135 return r;
136}
137
138int _zd_iowrite32v_locked(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs,
139 unsigned int count)
140{
141 int i, j, r;
142 struct zd_ioreq16 *ioreqs16;
143 unsigned int count16;
144
145 ZD_ASSERT(mutex_is_locked(&chip->mutex));
146
147 if (count == 0)
148 return 0;
149 if (count > USB_MAX_IOWRITE32_COUNT)
150 return -EINVAL;
151
152 /* Allocate a single memory block for values and addresses. */
153 count16 = 2*count;
154 ioreqs16 = kmalloc(count16 * sizeof(struct zd_ioreq16), GFP_NOFS);
155 if (!ioreqs16) {
156 r = -ENOMEM;
157 dev_dbg_f(zd_chip_dev(chip),
158 "error %d in ioreqs16 allocation\n", r);
159 goto out;
160 }
161
162 for (i = 0; i < count; i++) {
163 j = 2*i;
164 /* We write the high word always first. */
165 ioreqs16[j].value = ioreqs[i].value >> 16;
166 ioreqs16[j].addr = zd_inc_word(ioreqs[i].addr);
167 ioreqs16[j+1].value = ioreqs[i].value;
168 ioreqs16[j+1].addr = ioreqs[i].addr;
169 }
170
171 r = zd_usb_iowrite16v(&chip->usb, ioreqs16, count16);
172#ifdef DEBUG
173 if (r) {
174 dev_dbg_f(zd_chip_dev(chip),
175 "error %d in zd_usb_write16v\n", r);
176 }
177#endif /* DEBUG */
178out:
179 kfree(ioreqs16);
180 return r;
181}
182
183int zd_iowrite16a_locked(struct zd_chip *chip,
184 const struct zd_ioreq16 *ioreqs, unsigned int count)
185{
186 int r;
187 unsigned int i, j, t, max;
188
189 ZD_ASSERT(mutex_is_locked(&chip->mutex));
190 for (i = 0; i < count; i += j + t) {
191 t = 0;
192 max = count-i;
193 if (max > USB_MAX_IOWRITE16_COUNT)
194 max = USB_MAX_IOWRITE16_COUNT;
195 for (j = 0; j < max; j++) {
196 if (!ioreqs[i+j].addr) {
197 t = 1;
198 break;
199 }
200 }
201
202 r = zd_usb_iowrite16v(&chip->usb, &ioreqs[i], j);
203 if (r) {
204 dev_dbg_f(zd_chip_dev(chip),
205 "error zd_usb_iowrite16v. Error number %d\n",
206 r);
207 return r;
208 }
209 }
210
211 return 0;
212}
213
214/* Writes a variable number of 32 bit registers. The functions will split
215 * that in several USB requests. A split can be forced by inserting an IO
216 * request with an zero address field.
217 */
218int zd_iowrite32a_locked(struct zd_chip *chip,
219 const struct zd_ioreq32 *ioreqs, unsigned int count)
220{
221 int r;
222 unsigned int i, j, t, max;
223
224 for (i = 0; i < count; i += j + t) {
225 t = 0;
226 max = count-i;
227 if (max > USB_MAX_IOWRITE32_COUNT)
228 max = USB_MAX_IOWRITE32_COUNT;
229 for (j = 0; j < max; j++) {
230 if (!ioreqs[i+j].addr) {
231 t = 1;
232 break;
233 }
234 }
235
236 r = _zd_iowrite32v_locked(chip, &ioreqs[i], j);
237 if (r) {
238 dev_dbg_f(zd_chip_dev(chip),
239 "error _zd_iowrite32v_locked."
240 " Error number %d\n", r);
241 return r;
242 }
243 }
244
245 return 0;
246}
247
248int zd_ioread16(struct zd_chip *chip, zd_addr_t addr, u16 *value)
249{
250 int r;
251
252 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
253 mutex_lock(&chip->mutex);
254 r = zd_ioread16_locked(chip, value, addr);
255 mutex_unlock(&chip->mutex);
256 return r;
257}
258
259int zd_ioread32(struct zd_chip *chip, zd_addr_t addr, u32 *value)
260{
261 int r;
262
263 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
264 mutex_lock(&chip->mutex);
265 r = zd_ioread32_locked(chip, value, addr);
266 mutex_unlock(&chip->mutex);
267 return r;
268}
269
270int zd_iowrite16(struct zd_chip *chip, zd_addr_t addr, u16 value)
271{
272 int r;
273
274 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
275 mutex_lock(&chip->mutex);
276 r = zd_iowrite16_locked(chip, value, addr);
277 mutex_unlock(&chip->mutex);
278 return r;
279}
280
281int zd_iowrite32(struct zd_chip *chip, zd_addr_t addr, u32 value)
282{
283 int r;
284
285 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
286 mutex_lock(&chip->mutex);
287 r = zd_iowrite32_locked(chip, value, addr);
288 mutex_unlock(&chip->mutex);
289 return r;
290}
291
292int zd_ioread32v(struct zd_chip *chip, const zd_addr_t *addresses,
293 u32 *values, unsigned int count)
294{
295 int r;
296
297 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
298 mutex_lock(&chip->mutex);
299 r = zd_ioread32v_locked(chip, values, addresses, count);
300 mutex_unlock(&chip->mutex);
301 return r;
302}
303
304int zd_iowrite32a(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs,
305 unsigned int count)
306{
307 int r;
308
309 ZD_ASSERT(!mutex_is_locked(&chip->mutex));
310 mutex_lock(&chip->mutex);
311 r = zd_iowrite32a_locked(chip, ioreqs, count);
312 mutex_unlock(&chip->mutex);
313 return r;
314}
315
316static int read_pod(struct zd_chip *chip, u8 *rf_type)
317{
318 int r;
319 u32 value;
320
321 ZD_ASSERT(mutex_is_locked(&chip->mutex));
322 r = zd_ioread32_locked(chip, &value, E2P_POD);
323 if (r)
324 goto error;
325 dev_dbg_f(zd_chip_dev(chip), "E2P_POD %#010x\n", value);
326
327 /* FIXME: AL2230 handling (Bit 7 in POD) */
328 *rf_type = value & 0x0f;
329 chip->pa_type = (value >> 16) & 0x0f;
330 chip->patch_cck_gain = (value >> 8) & 0x1;
331 chip->patch_cr157 = (value >> 13) & 0x1;
332 chip->patch_6m_band_edge = (value >> 21) & 0x1;
333
334 dev_dbg_f(zd_chip_dev(chip),
335 "RF %s %#01x PA type %#01x patch CCK %d patch CR157 %d "
336 "patch 6M %d\n",
337 zd_rf_name(*rf_type), *rf_type,
338 chip->pa_type, chip->patch_cck_gain,
339 chip->patch_cr157, chip->patch_6m_band_edge);
340 return 0;
341error:
342 *rf_type = 0;
343 chip->pa_type = 0;
344 chip->patch_cck_gain = 0;
345 chip->patch_cr157 = 0;
346 chip->patch_6m_band_edge = 0;
347 return r;
348}
349
350static int _read_mac_addr(struct zd_chip *chip, u8 *mac_addr,
351 const zd_addr_t *addr)
352{
353 int r;
354 u32 parts[2];
355
356 r = zd_ioread32v_locked(chip, parts, (const zd_addr_t *)addr, 2);
357 if (r) {
358 dev_dbg_f(zd_chip_dev(chip),
359 "error: couldn't read e2p macs. Error number %d\n", r);
360 return r;
361 }
362
363 mac_addr[0] = parts[0];
364 mac_addr[1] = parts[0] >> 8;
365 mac_addr[2] = parts[0] >> 16;
366 mac_addr[3] = parts[0] >> 24;
367 mac_addr[4] = parts[1];
368 mac_addr[5] = parts[1] >> 8;
369
370 return 0;
371}
372
373static int read_e2p_mac_addr(struct zd_chip *chip)
374{
375 static const zd_addr_t addr[2] = { E2P_MAC_ADDR_P1, E2P_MAC_ADDR_P2 };
376
377 ZD_ASSERT(mutex_is_locked(&chip->mutex));
378 return _read_mac_addr(chip, chip->e2p_mac, (const zd_addr_t *)addr);
379}
380
381/* MAC address: if custom mac addresses are to to be used CR_MAC_ADDR_P1 and
382 * CR_MAC_ADDR_P2 must be overwritten
383 */
384void zd_get_e2p_mac_addr(struct zd_chip *chip, u8 *mac_addr)
385{
386 mutex_lock(&chip->mutex);
387 memcpy(mac_addr, chip->e2p_mac, ETH_ALEN);
388 mutex_unlock(&chip->mutex);
389}
390
391static int read_mac_addr(struct zd_chip *chip, u8 *mac_addr)
392{
393 static const zd_addr_t addr[2] = { CR_MAC_ADDR_P1, CR_MAC_ADDR_P2 };
394 return _read_mac_addr(chip, mac_addr, (const zd_addr_t *)addr);
395}
396
397int zd_read_mac_addr(struct zd_chip *chip, u8 *mac_addr)
398{
399 int r;
400
401 dev_dbg_f(zd_chip_dev(chip), "\n");
402 mutex_lock(&chip->mutex);
403 r = read_mac_addr(chip, mac_addr);
404 mutex_unlock(&chip->mutex);
405 return r;
406}
407
408int zd_write_mac_addr(struct zd_chip *chip, const u8 *mac_addr)
409{
410 int r;
411 struct zd_ioreq32 reqs[2] = {
412 [0] = { .addr = CR_MAC_ADDR_P1 },
413 [1] = { .addr = CR_MAC_ADDR_P2 },
414 };
415
416 reqs[0].value = (mac_addr[3] << 24)
417 | (mac_addr[2] << 16)
418 | (mac_addr[1] << 8)
419 | mac_addr[0];
420 reqs[1].value = (mac_addr[5] << 8)
421 | mac_addr[4];
422
423 dev_dbg_f(zd_chip_dev(chip),
424 "mac addr " MAC_FMT "\n", MAC_ARG(mac_addr));
425
426 mutex_lock(&chip->mutex);
427 r = zd_iowrite32a_locked(chip, reqs, ARRAY_SIZE(reqs));
428#ifdef DEBUG
429 {
430 u8 tmp[ETH_ALEN];
431 read_mac_addr(chip, tmp);
432 }
433#endif /* DEBUG */
434 mutex_unlock(&chip->mutex);
435 return r;
436}
437
438int zd_read_regdomain(struct zd_chip *chip, u8 *regdomain)
439{
440 int r;
441 u32 value;
442
443 mutex_lock(&chip->mutex);
444 r = zd_ioread32_locked(chip, &value, E2P_SUBID);
445 mutex_unlock(&chip->mutex);
446 if (r)
447 return r;
448
449 *regdomain = value >> 16;
450 dev_dbg_f(zd_chip_dev(chip), "regdomain: %#04x\n", *regdomain);
451
452 return 0;
453}
454
455static int read_values(struct zd_chip *chip, u8 *values, size_t count,
456 zd_addr_t e2p_addr, u32 guard)
457{
458 int r;
459 int i;
460 u32 v;
461
462 ZD_ASSERT(mutex_is_locked(&chip->mutex));
463 for (i = 0;;) {
464 r = zd_ioread32_locked(chip, &v, e2p_addr+i/2);
465 if (r)
466 return r;
467 v -= guard;
468 if (i+4 < count) {
469 values[i++] = v;
470 values[i++] = v >> 8;
471 values[i++] = v >> 16;
472 values[i++] = v >> 24;
473 continue;
474 }
475 for (;i < count; i++)
476 values[i] = v >> (8*(i%3));
477 return 0;
478 }
479}
480
481static int read_pwr_cal_values(struct zd_chip *chip)
482{
483 return read_values(chip, chip->pwr_cal_values,
484 E2P_CHANNEL_COUNT, E2P_PWR_CAL_VALUE1,
485 0);
486}
487
488static int read_pwr_int_values(struct zd_chip *chip)
489{
490 return read_values(chip, chip->pwr_int_values,
491 E2P_CHANNEL_COUNT, E2P_PWR_INT_VALUE1,
492 E2P_PWR_INT_GUARD);
493}
494
495static int read_ofdm_cal_values(struct zd_chip *chip)
496{
497 int r;
498 int i;
499 static const zd_addr_t addresses[] = {
500 E2P_36M_CAL_VALUE1,
501 E2P_48M_CAL_VALUE1,
502 E2P_54M_CAL_VALUE1,
503 };
504
505 for (i = 0; i < 3; i++) {
506 r = read_values(chip, chip->ofdm_cal_values[i],
507 E2P_CHANNEL_COUNT, addresses[i], 0);
508 if (r)
509 return r;
510 }
511 return 0;
512}
513
514static int read_cal_int_tables(struct zd_chip *chip)
515{
516 int r;
517
518 r = read_pwr_cal_values(chip);
519 if (r)
520 return r;
521 r = read_pwr_int_values(chip);
522 if (r)
523 return r;
524 r = read_ofdm_cal_values(chip);
525 if (r)
526 return r;
527 return 0;
528}
529
530/* phy means physical registers */
531int zd_chip_lock_phy_regs(struct zd_chip *chip)
532{
533 int r;
534 u32 tmp;
535
536 ZD_ASSERT(mutex_is_locked(&chip->mutex));
537 r = zd_ioread32_locked(chip, &tmp, CR_REG1);
538 if (r) {
539 dev_err(zd_chip_dev(chip), "error ioread32(CR_REG1): %d\n", r);
540 return r;
541 }
542
543 dev_dbg_f(zd_chip_dev(chip),
544 "CR_REG1: 0x%02x -> 0x%02x\n", tmp, tmp & ~UNLOCK_PHY_REGS);
545 tmp &= ~UNLOCK_PHY_REGS;
546
547 r = zd_iowrite32_locked(chip, tmp, CR_REG1);
548 if (r)
549 dev_err(zd_chip_dev(chip), "error iowrite32(CR_REG1): %d\n", r);
550 return r;
551}
552
553int zd_chip_unlock_phy_regs(struct zd_chip *chip)
554{
555 int r;
556 u32 tmp;
557
558 ZD_ASSERT(mutex_is_locked(&chip->mutex));
559 r = zd_ioread32_locked(chip, &tmp, CR_REG1);
560 if (r) {
561 dev_err(zd_chip_dev(chip),
562 "error ioread32(CR_REG1): %d\n", r);
563 return r;
564 }
565
566 dev_dbg_f(zd_chip_dev(chip),
567 "CR_REG1: 0x%02x -> 0x%02x\n", tmp, tmp | UNLOCK_PHY_REGS);
568 tmp |= UNLOCK_PHY_REGS;
569
570 r = zd_iowrite32_locked(chip, tmp, CR_REG1);
571 if (r)
572 dev_err(zd_chip_dev(chip), "error iowrite32(CR_REG1): %d\n", r);
573 return r;
574}
575
576/* CR157 can be optionally patched by the EEPROM */
577static int patch_cr157(struct zd_chip *chip)
578{
579 int r;
580 u32 value;
581
582 if (!chip->patch_cr157)
583 return 0;
584
585 r = zd_ioread32_locked(chip, &value, E2P_PHY_REG);
586 if (r)
587 return r;
588
589 dev_dbg_f(zd_chip_dev(chip), "patching value %x\n", value >> 8);
590 return zd_iowrite32_locked(chip, value >> 8, CR157);
591}
592
593/*
594 * 6M band edge can be optionally overwritten for certain RF's
595 * Vendor driver says: for FCC regulation, enabled per HWFeature 6M band edge
596 * bit (for AL2230, AL2230S)
597 */
598static int patch_6m_band_edge(struct zd_chip *chip, int channel)
599{
600 struct zd_ioreq16 ioreqs[] = {
601 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
602 { CR47, 0x1e },
603 };
604
605 if (!chip->patch_6m_band_edge || !chip->rf.patch_6m_band_edge)
606 return 0;
607
608 /* FIXME: Channel 11 is not the edge for all regulatory domains. */
609 if (channel == 1 || channel == 11)
610 ioreqs[0].value = 0x12;
611
612 dev_dbg_f(zd_chip_dev(chip), "patching for channel %d\n", channel);
613 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
614}
615
616static int zd1211_hw_reset_phy(struct zd_chip *chip)
617{
618 static const struct zd_ioreq16 ioreqs[] = {
619 { CR0, 0x0a }, { CR1, 0x06 }, { CR2, 0x26 },
620 { CR3, 0x38 }, { CR4, 0x80 }, { CR9, 0xa0 },
621 { CR10, 0x81 }, { CR11, 0x00 }, { CR12, 0x7f },
622 { CR13, 0x8c }, { CR14, 0x80 }, { CR15, 0x3d },
623 { CR16, 0x20 }, { CR17, 0x1e }, { CR18, 0x0a },
624 { CR19, 0x48 }, { CR20, 0x0c }, { CR21, 0x0c },
625 { CR22, 0x23 }, { CR23, 0x90 }, { CR24, 0x14 },
626 { CR25, 0x40 }, { CR26, 0x10 }, { CR27, 0x19 },
627 { CR28, 0x7f }, { CR29, 0x80 }, { CR30, 0x4b },
628 { CR31, 0x60 }, { CR32, 0x43 }, { CR33, 0x08 },
629 { CR34, 0x06 }, { CR35, 0x0a }, { CR36, 0x00 },
630 { CR37, 0x00 }, { CR38, 0x38 }, { CR39, 0x0c },
631 { CR40, 0x84 }, { CR41, 0x2a }, { CR42, 0x80 },
632 { CR43, 0x10 }, { CR44, 0x12 }, { CR46, 0xff },
633 { CR47, 0x1E }, { CR48, 0x26 }, { CR49, 0x5b },
634 { CR64, 0xd0 }, { CR65, 0x04 }, { CR66, 0x58 },
635 { CR67, 0xc9 }, { CR68, 0x88 }, { CR69, 0x41 },
636 { CR70, 0x23 }, { CR71, 0x10 }, { CR72, 0xff },
637 { CR73, 0x32 }, { CR74, 0x30 }, { CR75, 0x65 },
638 { CR76, 0x41 }, { CR77, 0x1b }, { CR78, 0x30 },
639 { CR79, 0x68 }, { CR80, 0x64 }, { CR81, 0x64 },
640 { CR82, 0x00 }, { CR83, 0x00 }, { CR84, 0x00 },
641 { CR85, 0x02 }, { CR86, 0x00 }, { CR87, 0x00 },
642 { CR88, 0xff }, { CR89, 0xfc }, { CR90, 0x00 },
643 { CR91, 0x00 }, { CR92, 0x00 }, { CR93, 0x08 },
644 { CR94, 0x00 }, { CR95, 0x00 }, { CR96, 0xff },
645 { CR97, 0xe7 }, { CR98, 0x00 }, { CR99, 0x00 },
646 { CR100, 0x00 }, { CR101, 0xae }, { CR102, 0x02 },
647 { CR103, 0x00 }, { CR104, 0x03 }, { CR105, 0x65 },
648 { CR106, 0x04 }, { CR107, 0x00 }, { CR108, 0x0a },
649 { CR109, 0xaa }, { CR110, 0xaa }, { CR111, 0x25 },
650 { CR112, 0x25 }, { CR113, 0x00 }, { CR119, 0x1e },
651 { CR125, 0x90 }, { CR126, 0x00 }, { CR127, 0x00 },
652 { },
653 { CR5, 0x00 }, { CR6, 0x00 }, { CR7, 0x00 },
654 { CR8, 0x00 }, { CR9, 0x20 }, { CR12, 0xf0 },
655 { CR20, 0x0e }, { CR21, 0x0e }, { CR27, 0x10 },
656 { CR44, 0x33 }, { CR47, 0x1E }, { CR83, 0x24 },
657 { CR84, 0x04 }, { CR85, 0x00 }, { CR86, 0x0C },
658 { CR87, 0x12 }, { CR88, 0x0C }, { CR89, 0x00 },
659 { CR90, 0x10 }, { CR91, 0x08 }, { CR93, 0x00 },
660 { CR94, 0x01 }, { CR95, 0x00 }, { CR96, 0x50 },
661 { CR97, 0x37 }, { CR98, 0x35 }, { CR101, 0x13 },
662 { CR102, 0x27 }, { CR103, 0x27 }, { CR104, 0x18 },
663 { CR105, 0x12 }, { CR109, 0x27 }, { CR110, 0x27 },
664 { CR111, 0x27 }, { CR112, 0x27 }, { CR113, 0x27 },
665 { CR114, 0x27 }, { CR115, 0x26 }, { CR116, 0x24 },
666 { CR117, 0xfc }, { CR118, 0xfa }, { CR120, 0x4f },
667 { CR123, 0x27 }, { CR125, 0xaa }, { CR127, 0x03 },
668 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
669 { CR131, 0x0C }, { CR136, 0xdf }, { CR137, 0x40 },
670 { CR138, 0xa0 }, { CR139, 0xb0 }, { CR140, 0x99 },
671 { CR141, 0x82 }, { CR142, 0x54 }, { CR143, 0x1c },
672 { CR144, 0x6c }, { CR147, 0x07 }, { CR148, 0x4c },
673 { CR149, 0x50 }, { CR150, 0x0e }, { CR151, 0x18 },
674 { CR160, 0xfe }, { CR161, 0xee }, { CR162, 0xaa },
675 { CR163, 0xfa }, { CR164, 0xfa }, { CR165, 0xea },
676 { CR166, 0xbe }, { CR167, 0xbe }, { CR168, 0x6a },
677 { CR169, 0xba }, { CR170, 0xba }, { CR171, 0xba },
678 /* Note: CR204 must lead the CR203 */
679 { CR204, 0x7d },
680 { },
681 { CR203, 0x30 },
682 };
683
684 int r, t;
685
686 dev_dbg_f(zd_chip_dev(chip), "\n");
687
688 r = zd_chip_lock_phy_regs(chip);
689 if (r)
690 goto out;
691
692 r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
693 if (r)
694 goto unlock;
695
696 r = patch_cr157(chip);
697unlock:
698 t = zd_chip_unlock_phy_regs(chip);
699 if (t && !r)
700 r = t;
701out:
702 return r;
703}
704
705static int zd1211b_hw_reset_phy(struct zd_chip *chip)
706{
707 static const struct zd_ioreq16 ioreqs[] = {
708 { CR0, 0x14 }, { CR1, 0x06 }, { CR2, 0x26 },
709 { CR3, 0x38 }, { CR4, 0x80 }, { CR9, 0xe0 },
710 { CR10, 0x81 },
711 /* power control { { CR11, 1 << 6 }, */
712 { CR11, 0x00 },
713 { CR12, 0xf0 }, { CR13, 0x8c }, { CR14, 0x80 },
714 { CR15, 0x3d }, { CR16, 0x20 }, { CR17, 0x1e },
715 { CR18, 0x0a }, { CR19, 0x48 },
716 { CR20, 0x10 }, /* Org:0x0E, ComTrend:RalLink AP */
717 { CR21, 0x0e }, { CR22, 0x23 }, { CR23, 0x90 },
718 { CR24, 0x14 }, { CR25, 0x40 }, { CR26, 0x10 },
719 { CR27, 0x10 }, { CR28, 0x7f }, { CR29, 0x80 },
720 { CR30, 0x49 }, /* jointly decoder, no ASIC */
721 { CR31, 0x60 }, { CR32, 0x43 }, { CR33, 0x08 },
722 { CR34, 0x06 }, { CR35, 0x0a }, { CR36, 0x00 },
723 { CR37, 0x00 }, { CR38, 0x38 }, { CR39, 0x0c },
724 { CR40, 0x84 }, { CR41, 0x2a }, { CR42, 0x80 },
725 { CR43, 0x10 }, { CR44, 0x33 }, { CR46, 0xff },
726 { CR47, 0x1E }, { CR48, 0x26 }, { CR49, 0x5b },
727 { CR64, 0xd0 }, { CR65, 0x04 }, { CR66, 0x58 },
728 { CR67, 0xc9 }, { CR68, 0x88 }, { CR69, 0x41 },
729 { CR70, 0x23 }, { CR71, 0x10 }, { CR72, 0xff },
730 { CR73, 0x32 }, { CR74, 0x30 }, { CR75, 0x65 },
731 { CR76, 0x41 }, { CR77, 0x1b }, { CR78, 0x30 },
732 { CR79, 0xf0 }, { CR80, 0x64 }, { CR81, 0x64 },
733 { CR82, 0x00 }, { CR83, 0x24 }, { CR84, 0x04 },
734 { CR85, 0x00 }, { CR86, 0x0c }, { CR87, 0x12 },
735 { CR88, 0x0c }, { CR89, 0x00 }, { CR90, 0x58 },
736 { CR91, 0x04 }, { CR92, 0x00 }, { CR93, 0x00 },
737 { CR94, 0x01 },
738 { CR95, 0x20 }, /* ZD1211B */
739 { CR96, 0x50 }, { CR97, 0x37 }, { CR98, 0x35 },
740 { CR99, 0x00 }, { CR100, 0x01 }, { CR101, 0x13 },
741 { CR102, 0x27 }, { CR103, 0x27 }, { CR104, 0x18 },
742 { CR105, 0x12 }, { CR106, 0x04 }, { CR107, 0x00 },
743 { CR108, 0x0a }, { CR109, 0x27 }, { CR110, 0x27 },
744 { CR111, 0x27 }, { CR112, 0x27 }, { CR113, 0x27 },
745 { CR114, 0x27 }, { CR115, 0x26 }, { CR116, 0x24 },
746 { CR117, 0xfc }, { CR118, 0xfa }, { CR119, 0x1e },
747 { CR125, 0x90 }, { CR126, 0x00 }, { CR127, 0x00 },
748 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
749 { CR131, 0x0c }, { CR136, 0xdf }, { CR137, 0xa0 },
750 { CR138, 0xa8 }, { CR139, 0xb4 }, { CR140, 0x98 },
751 { CR141, 0x82 }, { CR142, 0x53 }, { CR143, 0x1c },
752 { CR144, 0x6c }, { CR147, 0x07 }, { CR148, 0x40 },
753 { CR149, 0x40 }, /* Org:0x50 ComTrend:RalLink AP */
754 { CR150, 0x14 }, /* Org:0x0E ComTrend:RalLink AP */
755 { CR151, 0x18 }, { CR159, 0x70 }, { CR160, 0xfe },
756 { CR161, 0xee }, { CR162, 0xaa }, { CR163, 0xfa },
757 { CR164, 0xfa }, { CR165, 0xea }, { CR166, 0xbe },
758 { CR167, 0xbe }, { CR168, 0x6a }, { CR169, 0xba },
759 { CR170, 0xba }, { CR171, 0xba },
760 /* Note: CR204 must lead the CR203 */
761 { CR204, 0x7d },
762 {},
763 { CR203, 0x30 },
764 };
765
766 int r, t;
767
768 dev_dbg_f(zd_chip_dev(chip), "\n");
769
770 r = zd_chip_lock_phy_regs(chip);
771 if (r)
772 goto out;
773
774 r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
775 if (r)
776 goto unlock;
777
778 r = patch_cr157(chip);
779unlock:
780 t = zd_chip_unlock_phy_regs(chip);
781 if (t && !r)
782 r = t;
783out:
784 return r;
785}
786
787static int hw_reset_phy(struct zd_chip *chip)
788{
789 return chip->is_zd1211b ? zd1211b_hw_reset_phy(chip) :
790 zd1211_hw_reset_phy(chip);
791}
792
793static int zd1211_hw_init_hmac(struct zd_chip *chip)
794{
795 static const struct zd_ioreq32 ioreqs[] = {
796 { CR_ACK_TIMEOUT_EXT, 0x20 },
797 { CR_ADDA_MBIAS_WARMTIME, 0x30000808 },
798 { CR_ZD1211_RETRY_MAX, 0x2 },
799 { CR_SNIFFER_ON, 0 },
800 { CR_RX_FILTER, AP_RX_FILTER },
801 { CR_GROUP_HASH_P1, 0x00 },
802 { CR_GROUP_HASH_P2, 0x80000000 },
803 { CR_REG1, 0xa4 },
804 { CR_ADDA_PWR_DWN, 0x7f },
805 { CR_BCN_PLCP_CFG, 0x00f00401 },
806 { CR_PHY_DELAY, 0x00 },
807 { CR_ACK_TIMEOUT_EXT, 0x80 },
808 { CR_ADDA_PWR_DWN, 0x00 },
809 { CR_ACK_TIME_80211, 0x100 },
810 { CR_IFS_VALUE, 0x547c032 },
811 { CR_RX_PE_DELAY, 0x70 },
812 { CR_PS_CTRL, 0x10000000 },
813 { CR_RTS_CTS_RATE, 0x02030203 },
814 { CR_RX_THRESHOLD, 0x000c0640 },
815 { CR_AFTER_PNP, 0x1 },
816 { CR_WEP_PROTECT, 0x114 },
817 };
818
819 int r;
820
821 dev_dbg_f(zd_chip_dev(chip), "\n");
822 ZD_ASSERT(mutex_is_locked(&chip->mutex));
823 r = zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
824#ifdef DEBUG
825 if (r) {
826 dev_err(zd_chip_dev(chip),
827 "error in zd_iowrite32a_locked. Error number %d\n", r);
828 }
829#endif /* DEBUG */
830 return r;
831}
832
833static int zd1211b_hw_init_hmac(struct zd_chip *chip)
834{
835 static const struct zd_ioreq32 ioreqs[] = {
836 { CR_ACK_TIMEOUT_EXT, 0x20 },
837 { CR_ADDA_MBIAS_WARMTIME, 0x30000808 },
838 { CR_ZD1211B_RETRY_MAX, 0x02020202 },
839 { CR_ZD1211B_TX_PWR_CTL4, 0x007f003f },
840 { CR_ZD1211B_TX_PWR_CTL3, 0x007f003f },
841 { CR_ZD1211B_TX_PWR_CTL2, 0x003f001f },
842 { CR_ZD1211B_TX_PWR_CTL1, 0x001f000f },
843 { CR_ZD1211B_AIFS_CTL1, 0x00280028 },
844 { CR_ZD1211B_AIFS_CTL2, 0x008C003C },
845 { CR_ZD1211B_TXOP, 0x01800824 },
846 { CR_SNIFFER_ON, 0 },
847 { CR_RX_FILTER, AP_RX_FILTER },
848 { CR_GROUP_HASH_P1, 0x00 },
849 { CR_GROUP_HASH_P2, 0x80000000 },
850 { CR_REG1, 0xa4 },
851 { CR_ADDA_PWR_DWN, 0x7f },
852 { CR_BCN_PLCP_CFG, 0x00f00401 },
853 { CR_PHY_DELAY, 0x00 },
854 { CR_ACK_TIMEOUT_EXT, 0x80 },
855 { CR_ADDA_PWR_DWN, 0x00 },
856 { CR_ACK_TIME_80211, 0x100 },
857 { CR_IFS_VALUE, 0x547c032 },
858 { CR_RX_PE_DELAY, 0x70 },
859 { CR_PS_CTRL, 0x10000000 },
860 { CR_RTS_CTS_RATE, 0x02030203 },
861 { CR_RX_THRESHOLD, 0x000c0640 },
862 { CR_AFTER_PNP, 0x1 },
863 { CR_WEP_PROTECT, 0x114 },
864 };
865
866 int r;
867
868 dev_dbg_f(zd_chip_dev(chip), "\n");
869 ZD_ASSERT(mutex_is_locked(&chip->mutex));
870 r = zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
871 if (r) {
872 dev_dbg_f(zd_chip_dev(chip),
873 "error in zd_iowrite32a_locked. Error number %d\n", r);
874 }
875 return r;
876}
877
878static int hw_init_hmac(struct zd_chip *chip)
879{
880 return chip->is_zd1211b ?
881 zd1211b_hw_init_hmac(chip) : zd1211_hw_init_hmac(chip);
882}
883
884struct aw_pt_bi {
885 u32 atim_wnd_period;
886 u32 pre_tbtt;
887 u32 beacon_interval;
888};
889
890static int get_aw_pt_bi(struct zd_chip *chip, struct aw_pt_bi *s)
891{
892 int r;
893 static const zd_addr_t aw_pt_bi_addr[] =
894 { CR_ATIM_WND_PERIOD, CR_PRE_TBTT, CR_BCN_INTERVAL };
895 u32 values[3];
896
897 r = zd_ioread32v_locked(chip, values, (const zd_addr_t *)aw_pt_bi_addr,
898 ARRAY_SIZE(aw_pt_bi_addr));
899 if (r) {
900 memset(s, 0, sizeof(*s));
901 return r;
902 }
903
904 s->atim_wnd_period = values[0];
905 s->pre_tbtt = values[1];
906 s->beacon_interval = values[2];
907 dev_dbg_f(zd_chip_dev(chip), "aw %u pt %u bi %u\n",
908 s->atim_wnd_period, s->pre_tbtt, s->beacon_interval);
909 return 0;
910}
911
912static int set_aw_pt_bi(struct zd_chip *chip, struct aw_pt_bi *s)
913{
914 struct zd_ioreq32 reqs[3];
915
916 if (s->beacon_interval <= 5)
917 s->beacon_interval = 5;
918 if (s->pre_tbtt < 4 || s->pre_tbtt >= s->beacon_interval)
919 s->pre_tbtt = s->beacon_interval - 1;
920 if (s->atim_wnd_period >= s->pre_tbtt)
921 s->atim_wnd_period = s->pre_tbtt - 1;
922
923 reqs[0].addr = CR_ATIM_WND_PERIOD;
924 reqs[0].value = s->atim_wnd_period;
925 reqs[1].addr = CR_PRE_TBTT;
926 reqs[1].value = s->pre_tbtt;
927 reqs[2].addr = CR_BCN_INTERVAL;
928 reqs[2].value = s->beacon_interval;
929
930 dev_dbg_f(zd_chip_dev(chip),
931 "aw %u pt %u bi %u\n", s->atim_wnd_period, s->pre_tbtt,
932 s->beacon_interval);
933 return zd_iowrite32a_locked(chip, reqs, ARRAY_SIZE(reqs));
934}
935
936
937static int set_beacon_interval(struct zd_chip *chip, u32 interval)
938{
939 int r;
940 struct aw_pt_bi s;
941
942 ZD_ASSERT(mutex_is_locked(&chip->mutex));
943 r = get_aw_pt_bi(chip, &s);
944 if (r)
945 return r;
946 s.beacon_interval = interval;
947 return set_aw_pt_bi(chip, &s);
948}
949
950int zd_set_beacon_interval(struct zd_chip *chip, u32 interval)
951{
952 int r;
953
954 mutex_lock(&chip->mutex);
955 r = set_beacon_interval(chip, interval);
956 mutex_unlock(&chip->mutex);
957 return r;
958}
959
960static int hw_init(struct zd_chip *chip)
961{
962 int r;
963
964 dev_dbg_f(zd_chip_dev(chip), "\n");
965 ZD_ASSERT(mutex_is_locked(&chip->mutex));
966 r = hw_reset_phy(chip);
967 if (r)
968 return r;
969
970 r = hw_init_hmac(chip);
971 if (r)
972 return r;
973 r = set_beacon_interval(chip, 100);
974 if (r)
975 return r;
976 return 0;
977}
978
979#ifdef DEBUG
980static int dump_cr(struct zd_chip *chip, const zd_addr_t addr,
981 const char *addr_string)
982{
983 int r;
984 u32 value;
985
986 r = zd_ioread32_locked(chip, &value, addr);
987 if (r) {
988 dev_dbg_f(zd_chip_dev(chip),
989 "error reading %s. Error number %d\n", addr_string, r);
990 return r;
991 }
992
993 dev_dbg_f(zd_chip_dev(chip), "%s %#010x\n",
994 addr_string, (unsigned int)value);
995 return 0;
996}
997
998static int test_init(struct zd_chip *chip)
999{
1000 int r;
1001
1002 r = dump_cr(chip, CR_AFTER_PNP, "CR_AFTER_PNP");
1003 if (r)
1004 return r;
1005 r = dump_cr(chip, CR_GPI_EN, "CR_GPI_EN");
1006 if (r)
1007 return r;
1008 return dump_cr(chip, CR_INTERRUPT, "CR_INTERRUPT");
1009}
1010
1011static void dump_fw_registers(struct zd_chip *chip)
1012{
1013 static const zd_addr_t addr[4] = {
1014 FW_FIRMWARE_VER, FW_USB_SPEED, FW_FIX_TX_RATE,
1015 FW_LINK_STATUS
1016 };
1017
1018 int r;
1019 u16 values[4];
1020
1021 r = zd_ioread16v_locked(chip, values, (const zd_addr_t*)addr,
1022 ARRAY_SIZE(addr));
1023 if (r) {
1024 dev_dbg_f(zd_chip_dev(chip), "error %d zd_ioread16v_locked\n",
1025 r);
1026 return;
1027 }
1028
1029 dev_dbg_f(zd_chip_dev(chip), "FW_FIRMWARE_VER %#06hx\n", values[0]);
1030 dev_dbg_f(zd_chip_dev(chip), "FW_USB_SPEED %#06hx\n", values[1]);
1031 dev_dbg_f(zd_chip_dev(chip), "FW_FIX_TX_RATE %#06hx\n", values[2]);
1032 dev_dbg_f(zd_chip_dev(chip), "FW_LINK_STATUS %#06hx\n", values[3]);
1033}
1034#endif /* DEBUG */
1035
1036static int print_fw_version(struct zd_chip *chip)
1037{
1038 int r;
1039 u16 version;
1040
1041 r = zd_ioread16_locked(chip, &version, FW_FIRMWARE_VER);
1042 if (r)
1043 return r;
1044
1045 dev_info(zd_chip_dev(chip),"firmware version %04hx\n", version);
1046 return 0;
1047}
1048
1049static int set_mandatory_rates(struct zd_chip *chip, enum ieee80211_std std)
1050{
1051 u32 rates;
1052 ZD_ASSERT(mutex_is_locked(&chip->mutex));
1053 /* This sets the mandatory rates, which only depend from the standard
1054 * that the device is supporting. Until further notice we should try
1055 * to support 802.11g also for full speed USB.
1056 */
1057 switch (std) {
1058 case IEEE80211B:
1059 rates = CR_RATE_1M|CR_RATE_2M|CR_RATE_5_5M|CR_RATE_11M;
1060 break;
1061 case IEEE80211G:
1062 rates = CR_RATE_1M|CR_RATE_2M|CR_RATE_5_5M|CR_RATE_11M|
1063 CR_RATE_6M|CR_RATE_12M|CR_RATE_24M;
1064 break;
1065 default:
1066 return -EINVAL;
1067 }
1068 return zd_iowrite32_locked(chip, rates, CR_MANDATORY_RATE_TBL);
1069}
1070
1071int zd_chip_enable_hwint(struct zd_chip *chip)
1072{
1073 int r;
1074
1075 mutex_lock(&chip->mutex);
1076 r = zd_iowrite32_locked(chip, HWINT_ENABLED, CR_INTERRUPT);
1077 mutex_unlock(&chip->mutex);
1078 return r;
1079}
1080
1081static int disable_hwint(struct zd_chip *chip)
1082{
1083 return zd_iowrite32_locked(chip, HWINT_DISABLED, CR_INTERRUPT);
1084}
1085
1086int zd_chip_disable_hwint(struct zd_chip *chip)
1087{
1088 int r;
1089
1090 mutex_lock(&chip->mutex);
1091 r = disable_hwint(chip);
1092 mutex_unlock(&chip->mutex);
1093 return r;
1094}
1095
1096int zd_chip_init_hw(struct zd_chip *chip, u8 device_type)
1097{
1098 int r;
1099 u8 rf_type;
1100
1101 dev_dbg_f(zd_chip_dev(chip), "\n");
1102
1103 mutex_lock(&chip->mutex);
1104 chip->is_zd1211b = (device_type == DEVICE_ZD1211B) != 0;
1105
1106#ifdef DEBUG
1107 r = test_init(chip);
1108 if (r)
1109 goto out;
1110#endif
1111 r = zd_iowrite32_locked(chip, 1, CR_AFTER_PNP);
1112 if (r)
1113 goto out;
1114
1115 r = zd_usb_init_hw(&chip->usb);
1116 if (r)
1117 goto out;
1118
1119 /* GPI is always disabled, also in the other driver.
1120 */
1121 r = zd_iowrite32_locked(chip, 0, CR_GPI_EN);
1122 if (r)
1123 goto out;
1124 r = zd_iowrite32_locked(chip, CWIN_SIZE, CR_CWMIN_CWMAX);
1125 if (r)
1126 goto out;
1127 /* Currently we support IEEE 802.11g for full and high speed USB.
1128 * It might be discussed, whether we should suppport pure b mode for
1129 * full speed USB.
1130 */
1131 r = set_mandatory_rates(chip, IEEE80211G);
1132 if (r)
1133 goto out;
1134 /* Disabling interrupts is certainly a smart thing here.
1135 */
1136 r = disable_hwint(chip);
1137 if (r)
1138 goto out;
1139 r = read_pod(chip, &rf_type);
1140 if (r)
1141 goto out;
1142 r = hw_init(chip);
1143 if (r)
1144 goto out;
1145 r = zd_rf_init_hw(&chip->rf, rf_type);
1146 if (r)
1147 goto out;
1148
1149 r = print_fw_version(chip);
1150 if (r)
1151 goto out;
1152
1153#ifdef DEBUG
1154 dump_fw_registers(chip);
1155 r = test_init(chip);
1156 if (r)
1157 goto out;
1158#endif /* DEBUG */
1159
1160 r = read_e2p_mac_addr(chip);
1161 if (r)
1162 goto out;
1163
1164 r = read_cal_int_tables(chip);
1165 if (r)
1166 goto out;
1167
1168 print_id(chip);
1169out:
1170 mutex_unlock(&chip->mutex);
1171 return r;
1172}
1173
1174static int update_pwr_int(struct zd_chip *chip, u8 channel)
1175{
1176 u8 value = chip->pwr_int_values[channel - 1];
1177 dev_dbg_f(zd_chip_dev(chip), "channel %d pwr_int %#04x\n",
1178 channel, value);
1179 return zd_iowrite32_locked(chip, value, CR31);
1180}
1181
1182static int update_pwr_cal(struct zd_chip *chip, u8 channel)
1183{
1184 u8 value = chip->pwr_cal_values[channel-1];
1185 dev_dbg_f(zd_chip_dev(chip), "channel %d pwr_cal %#04x\n",
1186 channel, value);
1187 return zd_iowrite32_locked(chip, value, CR68);
1188}
1189
1190static int update_ofdm_cal(struct zd_chip *chip, u8 channel)
1191{
1192 struct zd_ioreq32 ioreqs[3];
1193
1194 ioreqs[0].addr = CR67;
1195 ioreqs[0].value = chip->ofdm_cal_values[OFDM_36M_INDEX][channel-1];
1196 ioreqs[1].addr = CR66;
1197 ioreqs[1].value = chip->ofdm_cal_values[OFDM_48M_INDEX][channel-1];
1198 ioreqs[2].addr = CR65;
1199 ioreqs[2].value = chip->ofdm_cal_values[OFDM_54M_INDEX][channel-1];
1200
1201 dev_dbg_f(zd_chip_dev(chip),
1202 "channel %d ofdm_cal 36M %#04x 48M %#04x 54M %#04x\n",
1203 channel, ioreqs[0].value, ioreqs[1].value, ioreqs[2].value);
1204 return zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
1205}
1206
1207static int update_channel_integration_and_calibration(struct zd_chip *chip,
1208 u8 channel)
1209{
1210 int r;
1211
1212 r = update_pwr_int(chip, channel);
1213 if (r)
1214 return r;
1215 if (chip->is_zd1211b) {
1216 static const struct zd_ioreq32 ioreqs[] = {
1217 { CR69, 0x28 },
1218 {},
1219 { CR69, 0x2a },
1220 };
1221
1222 r = update_ofdm_cal(chip, channel);
1223 if (r)
1224 return r;
1225 r = update_pwr_cal(chip, channel);
1226 if (r)
1227 return r;
1228 r = zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
1229 if (r)
1230 return r;
1231 }
1232
1233 return 0;
1234}
1235
1236/* The CCK baseband gain can be optionally patched by the EEPROM */
1237static int patch_cck_gain(struct zd_chip *chip)
1238{
1239 int r;
1240 u32 value;
1241
1242 if (!chip->patch_cck_gain)
1243 return 0;
1244
1245 ZD_ASSERT(mutex_is_locked(&chip->mutex));
1246 r = zd_ioread32_locked(chip, &value, E2P_PHY_REG);
1247 if (r)
1248 return r;
1249 dev_dbg_f(zd_chip_dev(chip), "patching value %x\n", value & 0xff);
1250 return zd_iowrite32_locked(chip, value & 0xff, CR47);
1251}
1252
1253int zd_chip_set_channel(struct zd_chip *chip, u8 channel)
1254{
1255 int r, t;
1256
1257 mutex_lock(&chip->mutex);
1258 r = zd_chip_lock_phy_regs(chip);
1259 if (r)
1260 goto out;
1261 r = zd_rf_set_channel(&chip->rf, channel);
1262 if (r)
1263 goto unlock;
1264 r = update_channel_integration_and_calibration(chip, channel);
1265 if (r)
1266 goto unlock;
1267 r = patch_cck_gain(chip);
1268 if (r)
1269 goto unlock;
1270 r = patch_6m_band_edge(chip, channel);
1271 if (r)
1272 goto unlock;
1273 r = zd_iowrite32_locked(chip, 0, CR_CONFIG_PHILIPS);
1274unlock:
1275 t = zd_chip_unlock_phy_regs(chip);
1276 if (t && !r)
1277 r = t;
1278out:
1279 mutex_unlock(&chip->mutex);
1280 return r;
1281}
1282
1283u8 zd_chip_get_channel(struct zd_chip *chip)
1284{
1285 u8 channel;
1286
1287 mutex_lock(&chip->mutex);
1288 channel = chip->rf.channel;
1289 mutex_unlock(&chip->mutex);
1290 return channel;
1291}
1292
1293static u16 led_mask(int led)
1294{
1295 switch (led) {
1296 case 1:
1297 return LED1;
1298 case 2:
1299 return LED2;
1300 default:
1301 return 0;
1302 }
1303}
1304
1305static int read_led_reg(struct zd_chip *chip, u16 *status)
1306{
1307 ZD_ASSERT(mutex_is_locked(&chip->mutex));
1308 return zd_ioread16_locked(chip, status, CR_LED);
1309}
1310
1311static int write_led_reg(struct zd_chip *chip, u16 status)
1312{
1313 ZD_ASSERT(mutex_is_locked(&chip->mutex));
1314 return zd_iowrite16_locked(chip, status, CR_LED);
1315}
1316
1317int zd_chip_led_status(struct zd_chip *chip, int led, enum led_status status)
1318{
1319 int r, ret;
1320 u16 mask = led_mask(led);
1321 u16 reg;
1322
1323 if (!mask)
1324 return -EINVAL;
1325 mutex_lock(&chip->mutex);
1326 r = read_led_reg(chip, &reg);
1327 if (r)
1328 return r;
1329 switch (status) {
1330 case LED_STATUS:
1331 return (reg & mask) ? LED_ON : LED_OFF;
1332 case LED_OFF:
1333 reg &= ~mask;
1334 ret = LED_OFF;
1335 break;
1336 case LED_FLIP:
1337 reg ^= mask;
1338 ret = (reg&mask) ? LED_ON : LED_OFF;
1339 break;
1340 case LED_ON:
1341 reg |= mask;
1342 ret = LED_ON;
1343 break;
1344 default:
1345 return -EINVAL;
1346 }
1347 r = write_led_reg(chip, reg);
1348 if (r) {
1349 ret = r;
1350 goto out;
1351 }
1352out:
1353 mutex_unlock(&chip->mutex);
1354 return r;
1355}
1356
1357int zd_chip_led_flip(struct zd_chip *chip, int led,
1358 const unsigned int *phases_msecs, unsigned int count)
1359{
1360 int i, r;
1361 enum led_status status;
1362
1363 r = zd_chip_led_status(chip, led, LED_STATUS);
1364 if (r)
1365 return r;
1366 status = r;
1367 for (i = 0; i < count; i++) {
1368 r = zd_chip_led_status(chip, led, LED_FLIP);
1369 if (r < 0)
1370 goto out;
1371 msleep(phases_msecs[i]);
1372 }
1373
1374out:
1375 zd_chip_led_status(chip, led, status);
1376 return r;
1377}
1378
1379int zd_chip_set_basic_rates(struct zd_chip *chip, u16 cr_rates)
1380{
1381 int r;
1382
1383 if (cr_rates & ~(CR_RATES_80211B|CR_RATES_80211G))
1384 return -EINVAL;
1385
1386 mutex_lock(&chip->mutex);
1387 r = zd_iowrite32_locked(chip, cr_rates, CR_BASIC_RATE_TBL);
1388 mutex_unlock(&chip->mutex);
1389 return r;
1390}
1391
1392static int ofdm_qual_db(u8 status_quality, u8 rate, unsigned int size)
1393{
1394 static const u16 constants[] = {
1395 715, 655, 585, 540, 470, 410, 360, 315,
1396 270, 235, 205, 175, 150, 125, 105, 85,
1397 65, 50, 40, 25, 15
1398 };
1399
1400 int i;
1401 u32 x;
1402
1403 /* It seems that their quality parameter is somehow per signal
1404 * and is now transferred per bit.
1405 */
1406 switch (rate) {
1407 case ZD_OFDM_RATE_6M:
1408 case ZD_OFDM_RATE_12M:
1409 case ZD_OFDM_RATE_24M:
1410 size *= 2;
1411 break;
1412 case ZD_OFDM_RATE_9M:
1413 case ZD_OFDM_RATE_18M:
1414 case ZD_OFDM_RATE_36M:
1415 case ZD_OFDM_RATE_54M:
1416 size *= 4;
1417 size /= 3;
1418 break;
1419 case ZD_OFDM_RATE_48M:
1420 size *= 3;
1421 size /= 2;
1422 break;
1423 default:
1424 return -EINVAL;
1425 }
1426
1427 x = (10000 * status_quality)/size;
1428 for (i = 0; i < ARRAY_SIZE(constants); i++) {
1429 if (x > constants[i])
1430 break;
1431 }
1432
1433 return i;
1434}
1435
1436static unsigned int log10times100(unsigned int x)
1437{
1438 static const u8 log10[] = {
1439 0,
1440 0, 30, 47, 60, 69, 77, 84, 90, 95, 100,
1441 104, 107, 111, 114, 117, 120, 123, 125, 127, 130,
1442 132, 134, 136, 138, 139, 141, 143, 144, 146, 147,
1443 149, 150, 151, 153, 154, 155, 156, 157, 159, 160,
1444 161, 162, 163, 164, 165, 166, 167, 168, 169, 169,
1445 170, 171, 172, 173, 174, 174, 175, 176, 177, 177,
1446 178, 179, 179, 180, 181, 181, 182, 183, 183, 184,
1447 185, 185, 186, 186, 187, 188, 188, 189, 189, 190,
1448 190, 191, 191, 192, 192, 193, 193, 194, 194, 195,
1449 195, 196, 196, 197, 197, 198, 198, 199, 199, 200,
1450 200, 200, 201, 201, 202, 202, 202, 203, 203, 204,
1451 204, 204, 205, 205, 206, 206, 206, 207, 207, 207,
1452 208, 208, 208, 209, 209, 210, 210, 210, 211, 211,
1453 211, 212, 212, 212, 213, 213, 213, 213, 214, 214,
1454 214, 215, 215, 215, 216, 216, 216, 217, 217, 217,
1455 217, 218, 218, 218, 219, 219, 219, 219, 220, 220,
1456 220, 220, 221, 221, 221, 222, 222, 222, 222, 223,
1457 223, 223, 223, 224, 224, 224, 224,
1458 };
1459
1460 return x < ARRAY_SIZE(log10) ? log10[x] : 225;
1461}
1462
1463enum {
1464 MAX_CCK_EVM_DB = 45,
1465};
1466
1467static int cck_evm_db(u8 status_quality)
1468{
1469 return (20 * log10times100(status_quality)) / 100;
1470}
1471
1472static int cck_snr_db(u8 status_quality)
1473{
1474 int r = MAX_CCK_EVM_DB - cck_evm_db(status_quality);
1475 ZD_ASSERT(r >= 0);
1476 return r;
1477}
1478
1479static int rx_qual_db(const void *rx_frame, unsigned int size,
1480 const struct rx_status *status)
1481{
1482 return (status->frame_status&ZD_RX_OFDM) ?
1483 ofdm_qual_db(status->signal_quality_ofdm,
1484 zd_ofdm_plcp_header_rate(rx_frame),
1485 size) :
1486 cck_snr_db(status->signal_quality_cck);
1487}
1488
1489u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size,
1490 const struct rx_status *status)
1491{
1492 int r = rx_qual_db(rx_frame, size, status);
1493 if (r < 0)
1494 r = 0;
1495 r = (r * 100) / 14;
1496 if (r > 100)
1497 r = 100;
1498 return r;
1499}
1500
1501u8 zd_rx_strength_percent(u8 rssi)
1502{
1503 int r = (rssi*100) / 30;
1504 if (r > 100)
1505 r = 100;
1506 return (u8) r;
1507}
1508
1509u16 zd_rx_rate(const void *rx_frame, const struct rx_status *status)
1510{
1511 static const u16 ofdm_rates[] = {
1512 [ZD_OFDM_RATE_6M] = 60,
1513 [ZD_OFDM_RATE_9M] = 90,
1514 [ZD_OFDM_RATE_12M] = 120,
1515 [ZD_OFDM_RATE_18M] = 180,
1516 [ZD_OFDM_RATE_24M] = 240,
1517 [ZD_OFDM_RATE_36M] = 360,
1518 [ZD_OFDM_RATE_48M] = 480,
1519 [ZD_OFDM_RATE_54M] = 540,
1520 };
1521 u16 rate;
1522 if (status->frame_status & ZD_RX_OFDM) {
1523 u8 ofdm_rate = zd_ofdm_plcp_header_rate(rx_frame);
1524 rate = ofdm_rates[ofdm_rate & 0xf];
1525 } else {
1526 u8 cck_rate = zd_cck_plcp_header_rate(rx_frame);
1527 switch (cck_rate) {
1528 case ZD_CCK_SIGNAL_1M:
1529 rate = 10;
1530 break;
1531 case ZD_CCK_SIGNAL_2M:
1532 rate = 20;
1533 break;
1534 case ZD_CCK_SIGNAL_5M5:
1535 rate = 55;
1536 break;
1537 case ZD_CCK_SIGNAL_11M:
1538 rate = 110;
1539 break;
1540 default:
1541 rate = 0;
1542 }
1543 }
1544
1545 return rate;
1546}
1547
1548int zd_chip_switch_radio_on(struct zd_chip *chip)
1549{
1550 int r;
1551
1552 mutex_lock(&chip->mutex);
1553 r = zd_switch_radio_on(&chip->rf);
1554 mutex_unlock(&chip->mutex);
1555 return r;
1556}
1557
1558int zd_chip_switch_radio_off(struct zd_chip *chip)
1559{
1560 int r;
1561
1562 mutex_lock(&chip->mutex);
1563 r = zd_switch_radio_off(&chip->rf);
1564 mutex_unlock(&chip->mutex);
1565 return r;
1566}
1567
1568int zd_chip_enable_int(struct zd_chip *chip)
1569{
1570 int r;
1571
1572 mutex_lock(&chip->mutex);
1573 r = zd_usb_enable_int(&chip->usb);
1574 mutex_unlock(&chip->mutex);
1575 return r;
1576}
1577
1578void zd_chip_disable_int(struct zd_chip *chip)
1579{
1580 mutex_lock(&chip->mutex);
1581 zd_usb_disable_int(&chip->usb);
1582 mutex_unlock(&chip->mutex);
1583}
1584
1585int zd_chip_enable_rx(struct zd_chip *chip)
1586{
1587 int r;
1588
1589 mutex_lock(&chip->mutex);
1590 r = zd_usb_enable_rx(&chip->usb);
1591 mutex_unlock(&chip->mutex);
1592 return r;
1593}
1594
1595void zd_chip_disable_rx(struct zd_chip *chip)
1596{
1597 mutex_lock(&chip->mutex);
1598 zd_usb_disable_rx(&chip->usb);
1599 mutex_unlock(&chip->mutex);
1600}
1601
1602int zd_rfwritev_locked(struct zd_chip *chip,
1603 const u32* values, unsigned int count, u8 bits)
1604{
1605 int r;
1606 unsigned int i;
1607
1608 for (i = 0; i < count; i++) {
1609 r = zd_rfwrite_locked(chip, values[i], bits);
1610 if (r)
1611 return r;
1612 }
1613
1614 return 0;
1615}
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.h b/drivers/net/wireless/zd1211rw/zd_chip.h
new file mode 100644
index 000000000000..805121093ab5
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_chip.h
@@ -0,0 +1,825 @@
1/* zd_chip.h
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#ifndef _ZD_CHIP_H
19#define _ZD_CHIP_H
20
21#include "zd_types.h"
22#include "zd_rf.h"
23#include "zd_usb.h"
24
25/* Header for the Media Access Controller (MAC) and the Baseband Processor
26 * (BBP). It appears that the ZD1211 wraps the old ZD1205 with USB glue and
27 * adds a processor for handling the USB protocol.
28 */
29
30/* 8-bit hardware registers */
31#define CR0 CTL_REG(0x0000)
32#define CR1 CTL_REG(0x0004)
33#define CR2 CTL_REG(0x0008)
34#define CR3 CTL_REG(0x000C)
35
36#define CR5 CTL_REG(0x0010)
37/* bit 5: if set short preamble used
38 * bit 6: filter band - Japan channel 14 on, else off
39 */
40#define CR6 CTL_REG(0x0014)
41#define CR7 CTL_REG(0x0018)
42#define CR8 CTL_REG(0x001C)
43
44#define CR4 CTL_REG(0x0020)
45
46#define CR9 CTL_REG(0x0024)
47/* bit 2: antenna switch (together with CR10) */
48#define CR10 CTL_REG(0x0028)
49/* bit 1: antenna switch (together with CR9)
50 * RF2959 controls with CR11 radion on and off
51 */
52#define CR11 CTL_REG(0x002C)
53/* bit 6: TX power control for OFDM
54 * RF2959 controls with CR10 radio on and off
55 */
56#define CR12 CTL_REG(0x0030)
57#define CR13 CTL_REG(0x0034)
58#define CR14 CTL_REG(0x0038)
59#define CR15 CTL_REG(0x003C)
60#define CR16 CTL_REG(0x0040)
61#define CR17 CTL_REG(0x0044)
62#define CR18 CTL_REG(0x0048)
63#define CR19 CTL_REG(0x004C)
64#define CR20 CTL_REG(0x0050)
65#define CR21 CTL_REG(0x0054)
66#define CR22 CTL_REG(0x0058)
67#define CR23 CTL_REG(0x005C)
68#define CR24 CTL_REG(0x0060) /* CCA threshold */
69#define CR25 CTL_REG(0x0064)
70#define CR26 CTL_REG(0x0068)
71#define CR27 CTL_REG(0x006C)
72#define CR28 CTL_REG(0x0070)
73#define CR29 CTL_REG(0x0074)
74#define CR30 CTL_REG(0x0078)
75#define CR31 CTL_REG(0x007C) /* TX power control for RF in CCK mode */
76#define CR32 CTL_REG(0x0080)
77#define CR33 CTL_REG(0x0084)
78#define CR34 CTL_REG(0x0088)
79#define CR35 CTL_REG(0x008C)
80#define CR36 CTL_REG(0x0090)
81#define CR37 CTL_REG(0x0094)
82#define CR38 CTL_REG(0x0098)
83#define CR39 CTL_REG(0x009C)
84#define CR40 CTL_REG(0x00A0)
85#define CR41 CTL_REG(0x00A4)
86#define CR42 CTL_REG(0x00A8)
87#define CR43 CTL_REG(0x00AC)
88#define CR44 CTL_REG(0x00B0)
89#define CR45 CTL_REG(0x00B4)
90#define CR46 CTL_REG(0x00B8)
91#define CR47 CTL_REG(0x00BC) /* CCK baseband gain
92 * (patch value might be in EEPROM)
93 */
94#define CR48 CTL_REG(0x00C0)
95#define CR49 CTL_REG(0x00C4)
96#define CR50 CTL_REG(0x00C8)
97#define CR51 CTL_REG(0x00CC) /* TX power control for RF in 6-36M modes */
98#define CR52 CTL_REG(0x00D0) /* TX power control for RF in 48M mode */
99#define CR53 CTL_REG(0x00D4) /* TX power control for RF in 54M mode */
100#define CR54 CTL_REG(0x00D8)
101#define CR55 CTL_REG(0x00DC)
102#define CR56 CTL_REG(0x00E0)
103#define CR57 CTL_REG(0x00E4)
104#define CR58 CTL_REG(0x00E8)
105#define CR59 CTL_REG(0x00EC)
106#define CR60 CTL_REG(0x00F0)
107#define CR61 CTL_REG(0x00F4)
108#define CR62 CTL_REG(0x00F8)
109#define CR63 CTL_REG(0x00FC)
110#define CR64 CTL_REG(0x0100)
111#define CR65 CTL_REG(0x0104) /* OFDM 54M calibration */
112#define CR66 CTL_REG(0x0108) /* OFDM 48M calibration */
113#define CR67 CTL_REG(0x010C) /* OFDM 36M calibration */
114#define CR68 CTL_REG(0x0110) /* CCK calibration */
115#define CR69 CTL_REG(0x0114)
116#define CR70 CTL_REG(0x0118)
117#define CR71 CTL_REG(0x011C)
118#define CR72 CTL_REG(0x0120)
119#define CR73 CTL_REG(0x0124)
120#define CR74 CTL_REG(0x0128)
121#define CR75 CTL_REG(0x012C)
122#define CR76 CTL_REG(0x0130)
123#define CR77 CTL_REG(0x0134)
124#define CR78 CTL_REG(0x0138)
125#define CR79 CTL_REG(0x013C)
126#define CR80 CTL_REG(0x0140)
127#define CR81 CTL_REG(0x0144)
128#define CR82 CTL_REG(0x0148)
129#define CR83 CTL_REG(0x014C)
130#define CR84 CTL_REG(0x0150)
131#define CR85 CTL_REG(0x0154)
132#define CR86 CTL_REG(0x0158)
133#define CR87 CTL_REG(0x015C)
134#define CR88 CTL_REG(0x0160)
135#define CR89 CTL_REG(0x0164)
136#define CR90 CTL_REG(0x0168)
137#define CR91 CTL_REG(0x016C)
138#define CR92 CTL_REG(0x0170)
139#define CR93 CTL_REG(0x0174)
140#define CR94 CTL_REG(0x0178)
141#define CR95 CTL_REG(0x017C)
142#define CR96 CTL_REG(0x0180)
143#define CR97 CTL_REG(0x0184)
144#define CR98 CTL_REG(0x0188)
145#define CR99 CTL_REG(0x018C)
146#define CR100 CTL_REG(0x0190)
147#define CR101 CTL_REG(0x0194)
148#define CR102 CTL_REG(0x0198)
149#define CR103 CTL_REG(0x019C)
150#define CR104 CTL_REG(0x01A0)
151#define CR105 CTL_REG(0x01A4)
152#define CR106 CTL_REG(0x01A8)
153#define CR107 CTL_REG(0x01AC)
154#define CR108 CTL_REG(0x01B0)
155#define CR109 CTL_REG(0x01B4)
156#define CR110 CTL_REG(0x01B8)
157#define CR111 CTL_REG(0x01BC)
158#define CR112 CTL_REG(0x01C0)
159#define CR113 CTL_REG(0x01C4)
160#define CR114 CTL_REG(0x01C8)
161#define CR115 CTL_REG(0x01CC)
162#define CR116 CTL_REG(0x01D0)
163#define CR117 CTL_REG(0x01D4)
164#define CR118 CTL_REG(0x01D8)
165#define CR119 CTL_REG(0x01DC)
166#define CR120 CTL_REG(0x01E0)
167#define CR121 CTL_REG(0x01E4)
168#define CR122 CTL_REG(0x01E8)
169#define CR123 CTL_REG(0x01EC)
170#define CR124 CTL_REG(0x01F0)
171#define CR125 CTL_REG(0x01F4)
172#define CR126 CTL_REG(0x01F8)
173#define CR127 CTL_REG(0x01FC)
174#define CR128 CTL_REG(0x0200)
175#define CR129 CTL_REG(0x0204)
176#define CR130 CTL_REG(0x0208)
177#define CR131 CTL_REG(0x020C)
178#define CR132 CTL_REG(0x0210)
179#define CR133 CTL_REG(0x0214)
180#define CR134 CTL_REG(0x0218)
181#define CR135 CTL_REG(0x021C)
182#define CR136 CTL_REG(0x0220)
183#define CR137 CTL_REG(0x0224)
184#define CR138 CTL_REG(0x0228)
185#define CR139 CTL_REG(0x022C)
186#define CR140 CTL_REG(0x0230)
187#define CR141 CTL_REG(0x0234)
188#define CR142 CTL_REG(0x0238)
189#define CR143 CTL_REG(0x023C)
190#define CR144 CTL_REG(0x0240)
191#define CR145 CTL_REG(0x0244)
192#define CR146 CTL_REG(0x0248)
193#define CR147 CTL_REG(0x024C)
194#define CR148 CTL_REG(0x0250)
195#define CR149 CTL_REG(0x0254)
196#define CR150 CTL_REG(0x0258)
197#define CR151 CTL_REG(0x025C)
198#define CR152 CTL_REG(0x0260)
199#define CR153 CTL_REG(0x0264)
200#define CR154 CTL_REG(0x0268)
201#define CR155 CTL_REG(0x026C)
202#define CR156 CTL_REG(0x0270)
203#define CR157 CTL_REG(0x0274)
204#define CR158 CTL_REG(0x0278)
205#define CR159 CTL_REG(0x027C)
206#define CR160 CTL_REG(0x0280)
207#define CR161 CTL_REG(0x0284)
208#define CR162 CTL_REG(0x0288)
209#define CR163 CTL_REG(0x028C)
210#define CR164 CTL_REG(0x0290)
211#define CR165 CTL_REG(0x0294)
212#define CR166 CTL_REG(0x0298)
213#define CR167 CTL_REG(0x029C)
214#define CR168 CTL_REG(0x02A0)
215#define CR169 CTL_REG(0x02A4)
216#define CR170 CTL_REG(0x02A8)
217#define CR171 CTL_REG(0x02AC)
218#define CR172 CTL_REG(0x02B0)
219#define CR173 CTL_REG(0x02B4)
220#define CR174 CTL_REG(0x02B8)
221#define CR175 CTL_REG(0x02BC)
222#define CR176 CTL_REG(0x02C0)
223#define CR177 CTL_REG(0x02C4)
224#define CR178 CTL_REG(0x02C8)
225#define CR179 CTL_REG(0x02CC)
226#define CR180 CTL_REG(0x02D0)
227#define CR181 CTL_REG(0x02D4)
228#define CR182 CTL_REG(0x02D8)
229#define CR183 CTL_REG(0x02DC)
230#define CR184 CTL_REG(0x02E0)
231#define CR185 CTL_REG(0x02E4)
232#define CR186 CTL_REG(0x02E8)
233#define CR187 CTL_REG(0x02EC)
234#define CR188 CTL_REG(0x02F0)
235#define CR189 CTL_REG(0x02F4)
236#define CR190 CTL_REG(0x02F8)
237#define CR191 CTL_REG(0x02FC)
238#define CR192 CTL_REG(0x0300)
239#define CR193 CTL_REG(0x0304)
240#define CR194 CTL_REG(0x0308)
241#define CR195 CTL_REG(0x030C)
242#define CR196 CTL_REG(0x0310)
243#define CR197 CTL_REG(0x0314)
244#define CR198 CTL_REG(0x0318)
245#define CR199 CTL_REG(0x031C)
246#define CR200 CTL_REG(0x0320)
247#define CR201 CTL_REG(0x0324)
248#define CR202 CTL_REG(0x0328)
249#define CR203 CTL_REG(0x032C) /* I2C bus template value & flash control */
250#define CR204 CTL_REG(0x0330)
251#define CR205 CTL_REG(0x0334)
252#define CR206 CTL_REG(0x0338)
253#define CR207 CTL_REG(0x033C)
254#define CR208 CTL_REG(0x0340)
255#define CR209 CTL_REG(0x0344)
256#define CR210 CTL_REG(0x0348)
257#define CR211 CTL_REG(0x034C)
258#define CR212 CTL_REG(0x0350)
259#define CR213 CTL_REG(0x0354)
260#define CR214 CTL_REG(0x0358)
261#define CR215 CTL_REG(0x035C)
262#define CR216 CTL_REG(0x0360)
263#define CR217 CTL_REG(0x0364)
264#define CR218 CTL_REG(0x0368)
265#define CR219 CTL_REG(0x036C)
266#define CR220 CTL_REG(0x0370)
267#define CR221 CTL_REG(0x0374)
268#define CR222 CTL_REG(0x0378)
269#define CR223 CTL_REG(0x037C)
270#define CR224 CTL_REG(0x0380)
271#define CR225 CTL_REG(0x0384)
272#define CR226 CTL_REG(0x0388)
273#define CR227 CTL_REG(0x038C)
274#define CR228 CTL_REG(0x0390)
275#define CR229 CTL_REG(0x0394)
276#define CR230 CTL_REG(0x0398)
277#define CR231 CTL_REG(0x039C)
278#define CR232 CTL_REG(0x03A0)
279#define CR233 CTL_REG(0x03A4)
280#define CR234 CTL_REG(0x03A8)
281#define CR235 CTL_REG(0x03AC)
282#define CR236 CTL_REG(0x03B0)
283
284#define CR240 CTL_REG(0x03C0)
285/* bit 7: host-controlled RF register writes
286 * CR241-CR245: for hardware controlled writing of RF bits, not needed for
287 * USB
288 */
289#define CR241 CTL_REG(0x03C4)
290#define CR242 CTL_REG(0x03C8)
291#define CR243 CTL_REG(0x03CC)
292#define CR244 CTL_REG(0x03D0)
293#define CR245 CTL_REG(0x03D4)
294
295#define CR251 CTL_REG(0x03EC) /* only used for activation and deactivation of
296 * Airoha RFs AL2230 and AL7230B
297 */
298#define CR252 CTL_REG(0x03F0)
299#define CR253 CTL_REG(0x03F4)
300#define CR254 CTL_REG(0x03F8)
301#define CR255 CTL_REG(0x03FC)
302
303#define CR_MAX_PHY_REG 255
304
305/* Taken from the ZYDAS driver, not all of them are relevant for the ZSD1211
306 * driver.
307 */
308
309#define CR_RF_IF_CLK CTL_REG(0x0400)
310#define CR_RF_IF_DATA CTL_REG(0x0404)
311#define CR_PE1_PE2 CTL_REG(0x0408)
312#define CR_PE2_DLY CTL_REG(0x040C)
313#define CR_LE1 CTL_REG(0x0410)
314#define CR_LE2 CTL_REG(0x0414)
315/* Seems to enable/disable GPI (General Purpose IO?) */
316#define CR_GPI_EN CTL_REG(0x0418)
317#define CR_RADIO_PD CTL_REG(0x042C)
318#define CR_RF2948_PD CTL_REG(0x042C)
319#define CR_ENABLE_PS_MANUAL_AGC CTL_REG(0x043C)
320#define CR_CONFIG_PHILIPS CTL_REG(0x0440)
321#define CR_SA2400_SER_AP CTL_REG(0x0444)
322#define CR_I2C_WRITE CTL_REG(0x0444)
323#define CR_SA2400_SER_RP CTL_REG(0x0448)
324#define CR_RADIO_PE CTL_REG(0x0458)
325#define CR_RST_BUS_MASTER CTL_REG(0x045C)
326#define CR_RFCFG CTL_REG(0x0464)
327#define CR_HSTSCHG CTL_REG(0x046C)
328#define CR_PHY_ON CTL_REG(0x0474)
329#define CR_RX_DELAY CTL_REG(0x0478)
330#define CR_RX_PE_DELAY CTL_REG(0x047C)
331#define CR_GPIO_1 CTL_REG(0x0490)
332#define CR_GPIO_2 CTL_REG(0x0494)
333#define CR_EncryBufMux CTL_REG(0x04A8)
334#define CR_PS_CTRL CTL_REG(0x0500)
335#define CR_ADDA_PWR_DWN CTL_REG(0x0504)
336#define CR_ADDA_MBIAS_WARMTIME CTL_REG(0x0508)
337#define CR_MAC_PS_STATE CTL_REG(0x050C)
338
339#define CR_INTERRUPT CTL_REG(0x0510)
340#define INT_TX_COMPLETE 0x00000001
341#define INT_RX_COMPLETE 0x00000002
342#define INT_RETRY_FAIL 0x00000004
343#define INT_WAKEUP 0x00000008
344#define INT_DTIM_NOTIFY 0x00000020
345#define INT_CFG_NEXT_BCN 0x00000040
346#define INT_BUS_ABORT 0x00000080
347#define INT_TX_FIFO_READY 0x00000100
348#define INT_UART 0x00000200
349#define INT_TX_COMPLETE_EN 0x00010000
350#define INT_RX_COMPLETE_EN 0x00020000
351#define INT_RETRY_FAIL_EN 0x00040000
352#define INT_WAKEUP_EN 0x00080000
353#define INT_DTIM_NOTIFY_EN 0x00200000
354#define INT_CFG_NEXT_BCN_EN 0x00400000
355#define INT_BUS_ABORT_EN 0x00800000
356#define INT_TX_FIFO_READY_EN 0x01000000
357#define INT_UART_EN 0x02000000
358
359#define CR_TSF_LOW_PART CTL_REG(0x0514)
360#define CR_TSF_HIGH_PART CTL_REG(0x0518)
361
362/* Following three values are in time units (1024us)
363 * Following condition must be met:
364 * atim < tbtt < bcn
365 */
366#define CR_ATIM_WND_PERIOD CTL_REG(0x051C)
367#define CR_BCN_INTERVAL CTL_REG(0x0520)
368#define CR_PRE_TBTT CTL_REG(0x0524)
369/* in units of TU(1024us) */
370
371/* for UART support */
372#define CR_UART_RBR_THR_DLL CTL_REG(0x0540)
373#define CR_UART_DLM_IER CTL_REG(0x0544)
374#define CR_UART_IIR_FCR CTL_REG(0x0548)
375#define CR_UART_LCR CTL_REG(0x054c)
376#define CR_UART_MCR CTL_REG(0x0550)
377#define CR_UART_LSR CTL_REG(0x0554)
378#define CR_UART_MSR CTL_REG(0x0558)
379#define CR_UART_ECR CTL_REG(0x055c)
380#define CR_UART_STATUS CTL_REG(0x0560)
381
382#define CR_PCI_TX_ADDR_P1 CTL_REG(0x0600)
383#define CR_PCI_TX_AddR_P2 CTL_REG(0x0604)
384#define CR_PCI_RX_AddR_P1 CTL_REG(0x0608)
385#define CR_PCI_RX_AddR_P2 CTL_REG(0x060C)
386
387/* must be overwritten if custom MAC address will be used */
388#define CR_MAC_ADDR_P1 CTL_REG(0x0610)
389#define CR_MAC_ADDR_P2 CTL_REG(0x0614)
390#define CR_BSSID_P1 CTL_REG(0x0618)
391#define CR_BSSID_P2 CTL_REG(0x061C)
392#define CR_BCN_PLCP_CFG CTL_REG(0x0620)
393#define CR_GROUP_HASH_P1 CTL_REG(0x0624)
394#define CR_GROUP_HASH_P2 CTL_REG(0x0628)
395#define CR_RX_TIMEOUT CTL_REG(0x062C)
396
397/* Basic rates supported by the BSS. When producing ACK or CTS messages, the
398 * device will use a rate in this table that is less than or equal to the rate
399 * of the incoming frame which prompted the response */
400#define CR_BASIC_RATE_TBL CTL_REG(0x0630)
401#define CR_RATE_1M 0x0001 /* 802.11b */
402#define CR_RATE_2M 0x0002 /* 802.11b */
403#define CR_RATE_5_5M 0x0004 /* 802.11b */
404#define CR_RATE_11M 0x0008 /* 802.11b */
405#define CR_RATE_6M 0x0100 /* 802.11g */
406#define CR_RATE_9M 0x0200 /* 802.11g */
407#define CR_RATE_12M 0x0400 /* 802.11g */
408#define CR_RATE_18M 0x0800 /* 802.11g */
409#define CR_RATE_24M 0x1000 /* 802.11g */
410#define CR_RATE_36M 0x2000 /* 802.11g */
411#define CR_RATE_48M 0x4000 /* 802.11g */
412#define CR_RATE_54M 0x8000 /* 802.11g */
413#define CR_RATES_80211G 0xff00
414#define CR_RATES_80211B 0x000f
415
416/* Mandatory rates required in the BSS. When producing ACK or CTS messages, if
417 * the device could not find an appropriate rate in CR_BASIC_RATE_TBL, it will
418 * look for a rate in this table that is less than or equal to the rate of
419 * the incoming frame. */
420#define CR_MANDATORY_RATE_TBL CTL_REG(0x0634)
421#define CR_RTS_CTS_RATE CTL_REG(0x0638)
422
423#define CR_WEP_PROTECT CTL_REG(0x063C)
424#define CR_RX_THRESHOLD CTL_REG(0x0640)
425
426/* register for controlling the LEDS */
427#define CR_LED CTL_REG(0x0644)
428/* masks for controlling LEDs */
429#define LED1 0x0100
430#define LED2 0x0200
431
432/* Seems to indicate that the configuration is over.
433 */
434#define CR_AFTER_PNP CTL_REG(0x0648)
435#define CR_ACK_TIME_80211 CTL_REG(0x0658)
436
437#define CR_RX_OFFSET CTL_REG(0x065c)
438
439#define CR_PHY_DELAY CTL_REG(0x066C)
440#define CR_BCN_FIFO CTL_REG(0x0670)
441#define CR_SNIFFER_ON CTL_REG(0x0674)
442
443#define CR_ENCRYPTION_TYPE CTL_REG(0x0678)
444#define NO_WEP 0
445#define WEP64 1
446#define WEP128 5
447#define WEP256 6
448#define ENC_SNIFFER 8
449
450#define CR_ZD1211_RETRY_MAX CTL_REG(0x067C)
451
452#define CR_REG1 CTL_REG(0x0680)
453/* Setting the bit UNLOCK_PHY_REGS disallows the write access to physical
454 * registers, so one could argue it is a LOCK bit. But calling it
455 * LOCK_PHY_REGS makes it confusing.
456 */
457#define UNLOCK_PHY_REGS 0x0080
458
459#define CR_DEVICE_STATE CTL_REG(0x0684)
460#define CR_UNDERRUN_CNT CTL_REG(0x0688)
461
462#define CR_RX_FILTER CTL_REG(0x068c)
463#define RX_FILTER_ASSOC_RESPONSE 0x0002
464#define RX_FILTER_PROBE_RESPONSE 0x0020
465#define RX_FILTER_BEACON 0x0100
466#define RX_FILTER_AUTH 0x0800
467/* Sniff modus sets filter to 0xfffff */
468
469#define CR_ACK_TIMEOUT_EXT CTL_REG(0x0690)
470#define CR_BCN_FIFO_SEMAPHORE CTL_REG(0x0694)
471#define CR_IFS_VALUE CTL_REG(0x0698)
472#define CR_RX_TIME_OUT CTL_REG(0x069C)
473#define CR_TOTAL_RX_FRM CTL_REG(0x06A0)
474#define CR_CRC32_CNT CTL_REG(0x06A4)
475#define CR_CRC16_CNT CTL_REG(0x06A8)
476#define CR_DECRYPTION_ERR_UNI CTL_REG(0x06AC)
477#define CR_RX_FIFO_OVERRUN CTL_REG(0x06B0)
478
479#define CR_DECRYPTION_ERR_MUL CTL_REG(0x06BC)
480
481#define CR_NAV_CNT CTL_REG(0x06C4)
482#define CR_NAV_CCA CTL_REG(0x06C8)
483#define CR_RETRY_CNT CTL_REG(0x06CC)
484
485#define CR_READ_TCB_ADDR CTL_REG(0x06E8)
486#define CR_READ_RFD_ADDR CTL_REG(0x06EC)
487#define CR_CWMIN_CWMAX CTL_REG(0x06F0)
488#define CR_TOTAL_TX_FRM CTL_REG(0x06F4)
489
490/* CAM: Continuous Access Mode (power management) */
491#define CR_CAM_MODE CTL_REG(0x0700)
492#define CR_CAM_ROLL_TB_LOW CTL_REG(0x0704)
493#define CR_CAM_ROLL_TB_HIGH CTL_REG(0x0708)
494#define CR_CAM_ADDRESS CTL_REG(0x070C)
495#define CR_CAM_DATA CTL_REG(0x0710)
496
497#define CR_ROMDIR CTL_REG(0x0714)
498
499#define CR_DECRY_ERR_FLG_LOW CTL_REG(0x0714)
500#define CR_DECRY_ERR_FLG_HIGH CTL_REG(0x0718)
501
502#define CR_WEPKEY0 CTL_REG(0x0720)
503#define CR_WEPKEY1 CTL_REG(0x0724)
504#define CR_WEPKEY2 CTL_REG(0x0728)
505#define CR_WEPKEY3 CTL_REG(0x072C)
506#define CR_WEPKEY4 CTL_REG(0x0730)
507#define CR_WEPKEY5 CTL_REG(0x0734)
508#define CR_WEPKEY6 CTL_REG(0x0738)
509#define CR_WEPKEY7 CTL_REG(0x073C)
510#define CR_WEPKEY8 CTL_REG(0x0740)
511#define CR_WEPKEY9 CTL_REG(0x0744)
512#define CR_WEPKEY10 CTL_REG(0x0748)
513#define CR_WEPKEY11 CTL_REG(0x074C)
514#define CR_WEPKEY12 CTL_REG(0x0750)
515#define CR_WEPKEY13 CTL_REG(0x0754)
516#define CR_WEPKEY14 CTL_REG(0x0758)
517#define CR_WEPKEY15 CTL_REG(0x075c)
518#define CR_TKIP_MODE CTL_REG(0x0760)
519
520#define CR_EEPROM_PROTECT0 CTL_REG(0x0758)
521#define CR_EEPROM_PROTECT1 CTL_REG(0x075C)
522
523#define CR_DBG_FIFO_RD CTL_REG(0x0800)
524#define CR_DBG_SELECT CTL_REG(0x0804)
525#define CR_FIFO_Length CTL_REG(0x0808)
526
527
528#define CR_RSSI_MGC CTL_REG(0x0810)
529
530#define CR_PON CTL_REG(0x0818)
531#define CR_RX_ON CTL_REG(0x081C)
532#define CR_TX_ON CTL_REG(0x0820)
533#define CR_CHIP_EN CTL_REG(0x0824)
534#define CR_LO_SW CTL_REG(0x0828)
535#define CR_TXRX_SW CTL_REG(0x082C)
536#define CR_S_MD CTL_REG(0x0830)
537
538#define CR_USB_DEBUG_PORT CTL_REG(0x0888)
539
540#define CR_ZD1211B_TX_PWR_CTL1 CTL_REG(0x0b00)
541#define CR_ZD1211B_TX_PWR_CTL2 CTL_REG(0x0b04)
542#define CR_ZD1211B_TX_PWR_CTL3 CTL_REG(0x0b08)
543#define CR_ZD1211B_TX_PWR_CTL4 CTL_REG(0x0b0c)
544#define CR_ZD1211B_AIFS_CTL1 CTL_REG(0x0b10)
545#define CR_ZD1211B_AIFS_CTL2 CTL_REG(0x0b14)
546#define CR_ZD1211B_TXOP CTL_REG(0x0b20)
547#define CR_ZD1211B_RETRY_MAX CTL_REG(0x0b28)
548
549#define AP_RX_FILTER 0x0400feff
550#define STA_RX_FILTER 0x0000ffff
551
552#define CWIN_SIZE 0x007f043f
553
554
555#define HWINT_ENABLED 0x004f0000
556#define HWINT_DISABLED 0
557
558#define E2P_PWR_INT_GUARD 8
559#define E2P_CHANNEL_COUNT 14
560
561/* If you compare this addresses with the ZYDAS orignal driver, please notify
562 * that we use word mapping for the EEPROM.
563 */
564
565/*
566 * Upper 16 bit contains the regulatory domain.
567 */
568#define E2P_SUBID E2P_REG(0x00)
569#define E2P_POD E2P_REG(0x02)
570#define E2P_MAC_ADDR_P1 E2P_REG(0x04)
571#define E2P_MAC_ADDR_P2 E2P_REG(0x06)
572#define E2P_PWR_CAL_VALUE1 E2P_REG(0x08)
573#define E2P_PWR_CAL_VALUE2 E2P_REG(0x0a)
574#define E2P_PWR_CAL_VALUE3 E2P_REG(0x0c)
575#define E2P_PWR_CAL_VALUE4 E2P_REG(0x0e)
576#define E2P_PWR_INT_VALUE1 E2P_REG(0x10)
577#define E2P_PWR_INT_VALUE2 E2P_REG(0x12)
578#define E2P_PWR_INT_VALUE3 E2P_REG(0x14)
579#define E2P_PWR_INT_VALUE4 E2P_REG(0x16)
580
581/* Contains a bit for each allowed channel. It gives for Europe (ETSI 0x30)
582 * also only 11 channels. */
583#define E2P_ALLOWED_CHANNEL E2P_REG(0x18)
584
585#define E2P_PHY_REG E2P_REG(0x1a)
586#define E2P_DEVICE_VER E2P_REG(0x20)
587#define E2P_36M_CAL_VALUE1 E2P_REG(0x28)
588#define E2P_36M_CAL_VALUE2 E2P_REG(0x2a)
589#define E2P_36M_CAL_VALUE3 E2P_REG(0x2c)
590#define E2P_36M_CAL_VALUE4 E2P_REG(0x2e)
591#define E2P_11A_INT_VALUE1 E2P_REG(0x30)
592#define E2P_11A_INT_VALUE2 E2P_REG(0x32)
593#define E2P_11A_INT_VALUE3 E2P_REG(0x34)
594#define E2P_11A_INT_VALUE4 E2P_REG(0x36)
595#define E2P_48M_CAL_VALUE1 E2P_REG(0x38)
596#define E2P_48M_CAL_VALUE2 E2P_REG(0x3a)
597#define E2P_48M_CAL_VALUE3 E2P_REG(0x3c)
598#define E2P_48M_CAL_VALUE4 E2P_REG(0x3e)
599#define E2P_48M_INT_VALUE1 E2P_REG(0x40)
600#define E2P_48M_INT_VALUE2 E2P_REG(0x42)
601#define E2P_48M_INT_VALUE3 E2P_REG(0x44)
602#define E2P_48M_INT_VALUE4 E2P_REG(0x46)
603#define E2P_54M_CAL_VALUE1 E2P_REG(0x48) /* ??? */
604#define E2P_54M_CAL_VALUE2 E2P_REG(0x4a)
605#define E2P_54M_CAL_VALUE3 E2P_REG(0x4c)
606#define E2P_54M_CAL_VALUE4 E2P_REG(0x4e)
607#define E2P_54M_INT_VALUE1 E2P_REG(0x50)
608#define E2P_54M_INT_VALUE2 E2P_REG(0x52)
609#define E2P_54M_INT_VALUE3 E2P_REG(0x54)
610#define E2P_54M_INT_VALUE4 E2P_REG(0x56)
611
612/* All 16 bit values */
613#define FW_FIRMWARE_VER FW_REG(0)
614/* non-zero if USB high speed connection */
615#define FW_USB_SPEED FW_REG(1)
616#define FW_FIX_TX_RATE FW_REG(2)
617/* Seems to be able to control LEDs over the firmware */
618#define FW_LINK_STATUS FW_REG(3)
619#define FW_SOFT_RESET FW_REG(4)
620#define FW_FLASH_CHK FW_REG(5)
621
622enum {
623 CR_BASE_OFFSET = 0x9000,
624 FW_START_OFFSET = 0xee00,
625 FW_BASE_ADDR_OFFSET = FW_START_OFFSET + 0x1d,
626 EEPROM_START_OFFSET = 0xf800,
627 EEPROM_SIZE = 0x800, /* words */
628 LOAD_CODE_SIZE = 0xe, /* words */
629 LOAD_VECT_SIZE = 0x10000 - 0xfff7, /* words */
630 EEPROM_REGS_OFFSET = LOAD_CODE_SIZE + LOAD_VECT_SIZE,
631 E2P_BASE_OFFSET = EEPROM_START_OFFSET +
632 EEPROM_REGS_OFFSET,
633};
634
635#define FW_REG_TABLE_ADDR USB_ADDR(FW_START_OFFSET + 0x1d)
636
637enum {
638 /* indices for ofdm_cal_values */
639 OFDM_36M_INDEX = 0,
640 OFDM_48M_INDEX = 1,
641 OFDM_54M_INDEX = 2,
642};
643
644struct zd_chip {
645 struct zd_usb usb;
646 struct zd_rf rf;
647 struct mutex mutex;
648 u8 e2p_mac[ETH_ALEN];
649 /* EepSetPoint in the vendor driver */
650 u8 pwr_cal_values[E2P_CHANNEL_COUNT];
651 /* integration values in the vendor driver */
652 u8 pwr_int_values[E2P_CHANNEL_COUNT];
653 /* SetPointOFDM in the vendor driver */
654 u8 ofdm_cal_values[3][E2P_CHANNEL_COUNT];
655 u8 pa_type:4, patch_cck_gain:1, patch_cr157:1, patch_6m_band_edge:1,
656 is_zd1211b:1;
657};
658
659static inline struct zd_chip *zd_usb_to_chip(struct zd_usb *usb)
660{
661 return container_of(usb, struct zd_chip, usb);
662}
663
664static inline struct zd_chip *zd_rf_to_chip(struct zd_rf *rf)
665{
666 return container_of(rf, struct zd_chip, rf);
667}
668
669#define zd_chip_dev(chip) (&(chip)->usb.intf->dev)
670
671void zd_chip_init(struct zd_chip *chip,
672 struct net_device *netdev,
673 struct usb_interface *intf);
674void zd_chip_clear(struct zd_chip *chip);
675int zd_chip_init_hw(struct zd_chip *chip, u8 device_type);
676int zd_chip_reset(struct zd_chip *chip);
677
678static inline int zd_ioread16v_locked(struct zd_chip *chip, u16 *values,
679 const zd_addr_t *addresses,
680 unsigned int count)
681{
682 ZD_ASSERT(mutex_is_locked(&chip->mutex));
683 return zd_usb_ioread16v(&chip->usb, values, addresses, count);
684}
685
686static inline int zd_ioread16_locked(struct zd_chip *chip, u16 *value,
687 const zd_addr_t addr)
688{
689 ZD_ASSERT(mutex_is_locked(&chip->mutex));
690 return zd_usb_ioread16(&chip->usb, value, addr);
691}
692
693int zd_ioread32v_locked(struct zd_chip *chip, u32 *values,
694 const zd_addr_t *addresses, unsigned int count);
695
696static inline int zd_ioread32_locked(struct zd_chip *chip, u32 *value,
697 const zd_addr_t addr)
698{
699 return zd_ioread32v_locked(chip, value, (const zd_addr_t *)&addr, 1);
700}
701
702static inline int zd_iowrite16_locked(struct zd_chip *chip, u16 value,
703 zd_addr_t addr)
704{
705 struct zd_ioreq16 ioreq;
706
707 ZD_ASSERT(mutex_is_locked(&chip->mutex));
708 ioreq.addr = addr;
709 ioreq.value = value;
710
711 return zd_usb_iowrite16v(&chip->usb, &ioreq, 1);
712}
713
714int zd_iowrite16a_locked(struct zd_chip *chip,
715 const struct zd_ioreq16 *ioreqs, unsigned int count);
716
717int _zd_iowrite32v_locked(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs,
718 unsigned int count);
719
720static inline int zd_iowrite32_locked(struct zd_chip *chip, u32 value,
721 zd_addr_t addr)
722{
723 struct zd_ioreq32 ioreq;
724
725 ioreq.addr = addr;
726 ioreq.value = value;
727
728 return _zd_iowrite32v_locked(chip, &ioreq, 1);
729}
730
731int zd_iowrite32a_locked(struct zd_chip *chip,
732 const struct zd_ioreq32 *ioreqs, unsigned int count);
733
734static inline int zd_rfwrite_locked(struct zd_chip *chip, u32 value, u8 bits)
735{
736 ZD_ASSERT(mutex_is_locked(&chip->mutex));
737 return zd_usb_rfwrite(&chip->usb, value, bits);
738}
739
740int zd_rfwritev_locked(struct zd_chip *chip,
741 const u32* values, unsigned int count, u8 bits);
742
743/* Locking functions for reading and writing registers.
744 * The different parameters are intentional.
745 */
746int zd_ioread16(struct zd_chip *chip, zd_addr_t addr, u16 *value);
747int zd_iowrite16(struct zd_chip *chip, zd_addr_t addr, u16 value);
748int zd_ioread32(struct zd_chip *chip, zd_addr_t addr, u32 *value);
749int zd_iowrite32(struct zd_chip *chip, zd_addr_t addr, u32 value);
750int zd_ioread32v(struct zd_chip *chip, const zd_addr_t *addresses,
751 u32 *values, unsigned int count);
752int zd_iowrite32a(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs,
753 unsigned int count);
754
755int zd_chip_set_channel(struct zd_chip *chip, u8 channel);
756static inline u8 _zd_chip_get_channel(struct zd_chip *chip)
757{
758 return chip->rf.channel;
759}
760u8 zd_chip_get_channel(struct zd_chip *chip);
761int zd_read_regdomain(struct zd_chip *chip, u8 *regdomain);
762void zd_get_e2p_mac_addr(struct zd_chip *chip, u8 *mac_addr);
763int zd_read_mac_addr(struct zd_chip *chip, u8 *mac_addr);
764int zd_write_mac_addr(struct zd_chip *chip, const u8 *mac_addr);
765int zd_chip_switch_radio_on(struct zd_chip *chip);
766int zd_chip_switch_radio_off(struct zd_chip *chip);
767int zd_chip_enable_int(struct zd_chip *chip);
768void zd_chip_disable_int(struct zd_chip *chip);
769int zd_chip_enable_rx(struct zd_chip *chip);
770void zd_chip_disable_rx(struct zd_chip *chip);
771int zd_chip_enable_hwint(struct zd_chip *chip);
772int zd_chip_disable_hwint(struct zd_chip *chip);
773
774static inline int zd_get_encryption_type(struct zd_chip *chip, u32 *type)
775{
776 return zd_ioread32(chip, CR_ENCRYPTION_TYPE, type);
777}
778
779static inline int zd_set_encryption_type(struct zd_chip *chip, u32 type)
780{
781 return zd_iowrite32(chip, CR_ENCRYPTION_TYPE, type);
782}
783
784static inline int zd_chip_get_basic_rates(struct zd_chip *chip, u16 *cr_rates)
785{
786 return zd_ioread16(chip, CR_BASIC_RATE_TBL, cr_rates);
787}
788
789int zd_chip_set_basic_rates(struct zd_chip *chip, u16 cr_rates);
790
791static inline int zd_chip_set_rx_filter(struct zd_chip *chip, u32 filter)
792{
793 return zd_iowrite32(chip, CR_RX_FILTER, filter);
794}
795
796int zd_chip_lock_phy_regs(struct zd_chip *chip);
797int zd_chip_unlock_phy_regs(struct zd_chip *chip);
798
799enum led_status {
800 LED_OFF = 0,
801 LED_ON = 1,
802 LED_FLIP = 2,
803 LED_STATUS = 3,
804};
805
806int zd_chip_led_status(struct zd_chip *chip, int led, enum led_status status);
807int zd_chip_led_flip(struct zd_chip *chip, int led,
808 const unsigned int *phases_msecs, unsigned int count);
809
810int zd_set_beacon_interval(struct zd_chip *chip, u32 interval);
811
812static inline int zd_get_beacon_interval(struct zd_chip *chip, u32 *interval)
813{
814 return zd_ioread32(chip, CR_BCN_INTERVAL, interval);
815}
816
817struct rx_status;
818
819u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size,
820 const struct rx_status *status);
821u8 zd_rx_strength_percent(u8 rssi);
822
823u16 zd_rx_rate(const void *rx_frame, const struct rx_status *status);
824
825#endif /* _ZD_CHIP_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_def.h b/drivers/net/wireless/zd1211rw/zd_def.h
new file mode 100644
index 000000000000..465906812fc4
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_def.h
@@ -0,0 +1,48 @@
1/* zd_def.h
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#ifndef _ZD_DEF_H
19#define _ZD_DEF_H
20
21#include <linux/kernel.h>
22#include <linux/stringify.h>
23#include <linux/device.h>
24#include <linux/kernel.h>
25
26#define dev_printk_f(level, dev, fmt, args...) \
27 dev_printk(level, dev, "%s() " fmt, __func__, ##args)
28
29#ifdef DEBUG
30# define dev_dbg_f(dev, fmt, args...) \
31 dev_printk_f(KERN_DEBUG, dev, fmt, ## args)
32#else
33# define dev_dbg_f(dev, fmt, args...) do { (void)(dev); } while (0)
34#endif /* DEBUG */
35
36#ifdef DEBUG
37# define ZD_ASSERT(x) \
38do { \
39 if (!(x)) { \
40 pr_debug("%s:%d ASSERT %s VIOLATED!\n", \
41 __FILE__, __LINE__, __stringify(x)); \
42 } \
43} while (0)
44#else
45# define ZD_ASSERT(x) do { } while (0)
46#endif
47
48#endif /* _ZD_DEF_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_ieee80211.c b/drivers/net/wireless/zd1211rw/zd_ieee80211.c
new file mode 100644
index 000000000000..66905f7b61ff
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_ieee80211.c
@@ -0,0 +1,191 @@
1/* zd_ieee80211.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/*
19 * A lot of this code is generic and should be moved into the upper layers
20 * at some point.
21 */
22
23#include <linux/errno.h>
24#include <linux/wireless.h>
25#include <linux/kernel.h>
26#include <net/ieee80211.h>
27
28#include "zd_def.h"
29#include "zd_ieee80211.h"
30#include "zd_mac.h"
31
32static const struct channel_range channel_ranges[] = {
33 [0] = { 0, 0},
34 [ZD_REGDOMAIN_FCC] = { 1, 12},
35 [ZD_REGDOMAIN_IC] = { 1, 12},
36 [ZD_REGDOMAIN_ETSI] = { 1, 14},
37 [ZD_REGDOMAIN_JAPAN] = { 1, 14},
38 [ZD_REGDOMAIN_SPAIN] = { 1, 14},
39 [ZD_REGDOMAIN_FRANCE] = { 1, 14},
40 [ZD_REGDOMAIN_JAPAN_ADD] = {14, 15},
41};
42
43const struct channel_range *zd_channel_range(u8 regdomain)
44{
45 if (regdomain >= ARRAY_SIZE(channel_ranges))
46 regdomain = 0;
47 return &channel_ranges[regdomain];
48}
49
50int zd_regdomain_supports_channel(u8 regdomain, u8 channel)
51{
52 const struct channel_range *range = zd_channel_range(regdomain);
53 return range->start <= channel && channel < range->end;
54}
55
56int zd_regdomain_supported(u8 regdomain)
57{
58 const struct channel_range *range = zd_channel_range(regdomain);
59 return range->start != 0;
60}
61
62/* Stores channel frequencies in MHz. */
63static const u16 channel_frequencies[] = {
64 2412, 2417, 2422, 2427, 2432, 2437, 2442, 2447,
65 2452, 2457, 2462, 2467, 2472, 2484,
66};
67
68#define NUM_CHANNELS ARRAY_SIZE(channel_frequencies)
69
70static int compute_freq(struct iw_freq *freq, u32 mhz, u32 hz)
71{
72 u32 factor;
73
74 freq->e = 0;
75 if (mhz >= 1000000000U) {
76 pr_debug("zd1211 mhz %u to large\n", mhz);
77 freq->m = 0;
78 return -EINVAL;
79 }
80
81 factor = 1000;
82 while (mhz >= factor) {
83
84 freq->e += 1;
85 factor *= 10;
86 }
87
88 factor /= 1000U;
89 freq->m = mhz * (1000000U/factor) + hz/factor;
90
91 return 0;
92}
93
94int zd_channel_to_freq(struct iw_freq *freq, u8 channel)
95{
96 if (channel > NUM_CHANNELS) {
97 freq->m = 0;
98 freq->e = 0;
99 return -EINVAL;
100 }
101 if (!channel) {
102 freq->m = 0;
103 freq->e = 0;
104 return -EINVAL;
105 }
106 return compute_freq(freq, channel_frequencies[channel-1], 0);
107}
108
109static int freq_to_mhz(const struct iw_freq *freq)
110{
111 u32 factor;
112 int e;
113
114 /* Such high frequencies are not supported. */
115 if (freq->e > 6)
116 return -EINVAL;
117
118 factor = 1;
119 for (e = freq->e; e > 0; --e) {
120 factor *= 10;
121 }
122 factor = 1000000U / factor;
123
124 if (freq->m % factor) {
125 return -EINVAL;
126 }
127
128 return freq->m / factor;
129}
130
131int zd_find_channel(u8 *channel, const struct iw_freq *freq)
132{
133 int i, r;
134 u32 mhz;
135
136 if (!(freq->flags & IW_FREQ_FIXED))
137 return 0;
138
139 if (freq->m < 1000) {
140 if (freq->m > NUM_CHANNELS || freq->m == 0)
141 return -EINVAL;
142 *channel = freq->m;
143 return 1;
144 }
145
146 r = freq_to_mhz(freq);
147 if (r < 0)
148 return r;
149 mhz = r;
150
151 for (i = 0; i < NUM_CHANNELS; i++) {
152 if (mhz == channel_frequencies[i]) {
153 *channel = i+1;
154 return 1;
155 }
156 }
157
158 return -EINVAL;
159}
160
161int zd_geo_init(struct ieee80211_device *ieee, u8 regdomain)
162{
163 struct ieee80211_geo geo;
164 const struct channel_range *range;
165 int i;
166 u8 channel;
167
168 dev_dbg(zd_mac_dev(zd_netdev_mac(ieee->dev)),
169 "regdomain %#04x\n", regdomain);
170
171 range = zd_channel_range(regdomain);
172 if (range->start == 0) {
173 dev_err(zd_mac_dev(zd_netdev_mac(ieee->dev)),
174 "zd1211 regdomain %#04x not supported\n",
175 regdomain);
176 return -EINVAL;
177 }
178
179 memset(&geo, 0, sizeof(geo));
180
181 for (i = 0, channel = range->start; channel < range->end; channel++) {
182 struct ieee80211_channel *chan = &geo.bg[i++];
183 chan->freq = channel_frequencies[channel - 1];
184 chan->channel = channel;
185 }
186
187 geo.bg_channels = i;
188 memcpy(geo.name, "XX ", 4);
189 ieee80211_set_geo(ieee, &geo);
190 return 0;
191}
diff --git a/drivers/net/wireless/zd1211rw/zd_ieee80211.h b/drivers/net/wireless/zd1211rw/zd_ieee80211.h
new file mode 100644
index 000000000000..36329890dfec
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_ieee80211.h
@@ -0,0 +1,85 @@
1#ifndef _ZD_IEEE80211_H
2#define _ZD_IEEE80211_H
3
4#include <net/ieee80211.h>
5#include "zd_types.h"
6
7/* Additional definitions from the standards.
8 */
9
10#define ZD_REGDOMAIN_FCC 0x10
11#define ZD_REGDOMAIN_IC 0x20
12#define ZD_REGDOMAIN_ETSI 0x30
13#define ZD_REGDOMAIN_SPAIN 0x31
14#define ZD_REGDOMAIN_FRANCE 0x32
15#define ZD_REGDOMAIN_JAPAN_ADD 0x40
16#define ZD_REGDOMAIN_JAPAN 0x41
17
18enum {
19 MIN_CHANNEL24 = 1,
20 MAX_CHANNEL24 = 14,
21};
22
23struct channel_range {
24 u8 start;
25 u8 end; /* exclusive (channel must be less than end) */
26};
27
28struct iw_freq;
29
30int zd_geo_init(struct ieee80211_device *ieee, u8 regdomain);
31
32const struct channel_range *zd_channel_range(u8 regdomain);
33int zd_regdomain_supports_channel(u8 regdomain, u8 channel);
34int zd_regdomain_supported(u8 regdomain);
35
36/* for 2.4 GHz band */
37int zd_channel_to_freq(struct iw_freq *freq, u8 channel);
38int zd_find_channel(u8 *channel, const struct iw_freq *freq);
39
40#define ZD_PLCP_SERVICE_LENGTH_EXTENSION 0x80
41
42struct ofdm_plcp_header {
43 u8 prefix[3];
44 __le16 service;
45} __attribute__((packed));
46
47static inline u8 zd_ofdm_plcp_header_rate(
48 const struct ofdm_plcp_header *header)
49{
50 return header->prefix[0] & 0xf;
51}
52
53#define ZD_OFDM_RATE_6M 0xb
54#define ZD_OFDM_RATE_9M 0xf
55#define ZD_OFDM_RATE_12M 0xa
56#define ZD_OFDM_RATE_18M 0xe
57#define ZD_OFDM_RATE_24M 0x9
58#define ZD_OFDM_RATE_36M 0xd
59#define ZD_OFDM_RATE_48M 0x8
60#define ZD_OFDM_RATE_54M 0xc
61
62struct cck_plcp_header {
63 u8 signal;
64 u8 service;
65 __le16 length;
66 __le16 crc16;
67} __attribute__((packed));
68
69static inline u8 zd_cck_plcp_header_rate(const struct cck_plcp_header *header)
70{
71 return header->signal;
72}
73
74#define ZD_CCK_SIGNAL_1M 0x0a
75#define ZD_CCK_SIGNAL_2M 0x14
76#define ZD_CCK_SIGNAL_5M5 0x37
77#define ZD_CCK_SIGNAL_11M 0x6e
78
79enum ieee80211_std {
80 IEEE80211B = 0x01,
81 IEEE80211A = 0x02,
82 IEEE80211G = 0x04,
83};
84
85#endif /* _ZD_IEEE80211_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
new file mode 100644
index 000000000000..bbe067ec7de1
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -0,0 +1,1055 @@
1/* zd_mac.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/netdevice.h>
19#include <linux/etherdevice.h>
20#include <linux/wireless.h>
21#include <linux/usb.h>
22#include <linux/jiffies.h>
23#include <net/ieee80211_radiotap.h>
24
25#include "zd_def.h"
26#include "zd_chip.h"
27#include "zd_mac.h"
28#include "zd_ieee80211.h"
29#include "zd_netdev.h"
30#include "zd_rf.h"
31#include "zd_util.h"
32
33static void ieee_init(struct ieee80211_device *ieee);
34static void softmac_init(struct ieee80211softmac_device *sm);
35
36int zd_mac_init(struct zd_mac *mac,
37 struct net_device *netdev,
38 struct usb_interface *intf)
39{
40 struct ieee80211_device *ieee = zd_netdev_ieee80211(netdev);
41
42 memset(mac, 0, sizeof(*mac));
43 spin_lock_init(&mac->lock);
44 mac->netdev = netdev;
45
46 ieee_init(ieee);
47 softmac_init(ieee80211_priv(netdev));
48 zd_chip_init(&mac->chip, netdev, intf);
49 return 0;
50}
51
52static int reset_channel(struct zd_mac *mac)
53{
54 int r;
55 unsigned long flags;
56 const struct channel_range *range;
57
58 spin_lock_irqsave(&mac->lock, flags);
59 range = zd_channel_range(mac->regdomain);
60 if (!range->start) {
61 r = -EINVAL;
62 goto out;
63 }
64 mac->requested_channel = range->start;
65 r = 0;
66out:
67 spin_unlock_irqrestore(&mac->lock, flags);
68 return r;
69}
70
71int zd_mac_init_hw(struct zd_mac *mac, u8 device_type)
72{
73 int r;
74 struct zd_chip *chip = &mac->chip;
75 u8 addr[ETH_ALEN];
76 u8 default_regdomain;
77
78 r = zd_chip_enable_int(chip);
79 if (r)
80 goto out;
81 r = zd_chip_init_hw(chip, device_type);
82 if (r)
83 goto disable_int;
84
85 zd_get_e2p_mac_addr(chip, addr);
86 r = zd_write_mac_addr(chip, addr);
87 if (r)
88 goto disable_int;
89 ZD_ASSERT(!irqs_disabled());
90 spin_lock_irq(&mac->lock);
91 memcpy(mac->netdev->dev_addr, addr, ETH_ALEN);
92 spin_unlock_irq(&mac->lock);
93
94 r = zd_read_regdomain(chip, &default_regdomain);
95 if (r)
96 goto disable_int;
97 if (!zd_regdomain_supported(default_regdomain)) {
98 dev_dbg_f(zd_mac_dev(mac),
99 "Regulatory Domain %#04x is not supported.\n",
100 default_regdomain);
101 r = -EINVAL;
102 goto disable_int;
103 }
104 spin_lock_irq(&mac->lock);
105 mac->regdomain = mac->default_regdomain = default_regdomain;
106 spin_unlock_irq(&mac->lock);
107 r = reset_channel(mac);
108 if (r)
109 goto disable_int;
110
111 r = zd_set_encryption_type(chip, NO_WEP);
112 if (r)
113 goto disable_int;
114
115 r = zd_geo_init(zd_mac_to_ieee80211(mac), mac->regdomain);
116 if (r)
117 goto disable_int;
118
119 r = 0;
120disable_int:
121 zd_chip_disable_int(chip);
122out:
123 return r;
124}
125
126void zd_mac_clear(struct zd_mac *mac)
127{
128 /* Aquire the lock. */
129 spin_lock(&mac->lock);
130 spin_unlock(&mac->lock);
131 zd_chip_clear(&mac->chip);
132 memset(mac, 0, sizeof(*mac));
133}
134
135static int reset_mode(struct zd_mac *mac)
136{
137 struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
138 struct zd_ioreq32 ioreqs[3] = {
139 { CR_RX_FILTER, RX_FILTER_BEACON|RX_FILTER_PROBE_RESPONSE|
140 RX_FILTER_AUTH|RX_FILTER_ASSOC_RESPONSE },
141 { CR_SNIFFER_ON, 0U },
142 { CR_ENCRYPTION_TYPE, NO_WEP },
143 };
144
145 if (ieee->iw_mode == IW_MODE_MONITOR) {
146 ioreqs[0].value = 0xffffffff;
147 ioreqs[1].value = 0x1;
148 ioreqs[2].value = ENC_SNIFFER;
149 }
150
151 return zd_iowrite32a(&mac->chip, ioreqs, 3);
152}
153
154int zd_mac_open(struct net_device *netdev)
155{
156 struct zd_mac *mac = zd_netdev_mac(netdev);
157 struct zd_chip *chip = &mac->chip;
158 int r;
159
160 r = zd_chip_enable_int(chip);
161 if (r < 0)
162 goto out;
163
164 r = zd_chip_set_basic_rates(chip, CR_RATES_80211B | CR_RATES_80211G);
165 if (r < 0)
166 goto disable_int;
167 r = reset_mode(mac);
168 if (r)
169 goto disable_int;
170 r = zd_chip_switch_radio_on(chip);
171 if (r < 0)
172 goto disable_int;
173 r = zd_chip_set_channel(chip, mac->requested_channel);
174 if (r < 0)
175 goto disable_radio;
176 r = zd_chip_enable_rx(chip);
177 if (r < 0)
178 goto disable_radio;
179 r = zd_chip_enable_hwint(chip);
180 if (r < 0)
181 goto disable_rx;
182
183 ieee80211softmac_start(netdev);
184 return 0;
185disable_rx:
186 zd_chip_disable_rx(chip);
187disable_radio:
188 zd_chip_switch_radio_off(chip);
189disable_int:
190 zd_chip_disable_int(chip);
191out:
192 return r;
193}
194
195int zd_mac_stop(struct net_device *netdev)
196{
197 struct zd_mac *mac = zd_netdev_mac(netdev);
198 struct zd_chip *chip = &mac->chip;
199
200 /*
201 * The order here deliberately is a little different from the open()
202 * method, since we need to make sure there is no opportunity for RX
203 * frames to be processed by softmac after we have stopped it.
204 */
205
206 zd_chip_disable_rx(chip);
207 ieee80211softmac_stop(netdev);
208
209 zd_chip_disable_hwint(chip);
210 zd_chip_switch_radio_off(chip);
211 zd_chip_disable_int(chip);
212
213 return 0;
214}
215
216int zd_mac_set_mac_address(struct net_device *netdev, void *p)
217{
218 int r;
219 unsigned long flags;
220 struct sockaddr *addr = p;
221 struct zd_mac *mac = zd_netdev_mac(netdev);
222 struct zd_chip *chip = &mac->chip;
223
224 if (!is_valid_ether_addr(addr->sa_data))
225 return -EADDRNOTAVAIL;
226
227 dev_dbg_f(zd_mac_dev(mac),
228 "Setting MAC to " MAC_FMT "\n", MAC_ARG(addr->sa_data));
229
230 r = zd_write_mac_addr(chip, addr->sa_data);
231 if (r)
232 return r;
233
234 spin_lock_irqsave(&mac->lock, flags);
235 memcpy(netdev->dev_addr, addr->sa_data, ETH_ALEN);
236 spin_unlock_irqrestore(&mac->lock, flags);
237
238 return 0;
239}
240
241int zd_mac_set_regdomain(struct zd_mac *mac, u8 regdomain)
242{
243 int r;
244 u8 channel;
245
246 ZD_ASSERT(!irqs_disabled());
247 spin_lock_irq(&mac->lock);
248 if (regdomain == 0) {
249 regdomain = mac->default_regdomain;
250 }
251 if (!zd_regdomain_supported(regdomain)) {
252 spin_unlock_irq(&mac->lock);
253 return -EINVAL;
254 }
255 mac->regdomain = regdomain;
256 channel = mac->requested_channel;
257 spin_unlock_irq(&mac->lock);
258
259 r = zd_geo_init(zd_mac_to_ieee80211(mac), regdomain);
260 if (r)
261 return r;
262 if (!zd_regdomain_supports_channel(regdomain, channel)) {
263 r = reset_channel(mac);
264 if (r)
265 return r;
266 }
267
268 return 0;
269}
270
271u8 zd_mac_get_regdomain(struct zd_mac *mac)
272{
273 unsigned long flags;
274 u8 regdomain;
275
276 spin_lock_irqsave(&mac->lock, flags);
277 regdomain = mac->regdomain;
278 spin_unlock_irqrestore(&mac->lock, flags);
279 return regdomain;
280}
281
282static void set_channel(struct net_device *netdev, u8 channel)
283{
284 struct zd_mac *mac = zd_netdev_mac(netdev);
285
286 dev_dbg_f(zd_mac_dev(mac), "channel %d\n", channel);
287
288 zd_chip_set_channel(&mac->chip, channel);
289}
290
291/* TODO: Should not work in Managed mode. */
292int zd_mac_request_channel(struct zd_mac *mac, u8 channel)
293{
294 unsigned long lock_flags;
295 struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
296
297 if (ieee->iw_mode == IW_MODE_INFRA)
298 return -EPERM;
299
300 spin_lock_irqsave(&mac->lock, lock_flags);
301 if (!zd_regdomain_supports_channel(mac->regdomain, channel)) {
302 spin_unlock_irqrestore(&mac->lock, lock_flags);
303 return -EINVAL;
304 }
305 mac->requested_channel = channel;
306 spin_unlock_irqrestore(&mac->lock, lock_flags);
307 if (netif_running(mac->netdev))
308 return zd_chip_set_channel(&mac->chip, channel);
309 else
310 return 0;
311}
312
313int zd_mac_get_channel(struct zd_mac *mac, u8 *channel, u8 *flags)
314{
315 struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
316
317 *channel = zd_chip_get_channel(&mac->chip);
318 if (ieee->iw_mode != IW_MODE_INFRA) {
319 spin_lock_irq(&mac->lock);
320 *flags = *channel == mac->requested_channel ?
321 MAC_FIXED_CHANNEL : 0;
322 spin_unlock(&mac->lock);
323 } else {
324 *flags = 0;
325 }
326 dev_dbg_f(zd_mac_dev(mac), "channel %u flags %u\n", *channel, *flags);
327 return 0;
328}
329
330/* If wrong rate is given, we are falling back to the slowest rate: 1MBit/s */
331static u8 cs_typed_rate(u8 cs_rate)
332{
333 static const u8 typed_rates[16] = {
334 [ZD_CS_CCK_RATE_1M] = ZD_CS_CCK|ZD_CS_CCK_RATE_1M,
335 [ZD_CS_CCK_RATE_2M] = ZD_CS_CCK|ZD_CS_CCK_RATE_2M,
336 [ZD_CS_CCK_RATE_5_5M] = ZD_CS_CCK|ZD_CS_CCK_RATE_5_5M,
337 [ZD_CS_CCK_RATE_11M] = ZD_CS_CCK|ZD_CS_CCK_RATE_11M,
338 [ZD_OFDM_RATE_6M] = ZD_CS_OFDM|ZD_OFDM_RATE_6M,
339 [ZD_OFDM_RATE_9M] = ZD_CS_OFDM|ZD_OFDM_RATE_9M,
340 [ZD_OFDM_RATE_12M] = ZD_CS_OFDM|ZD_OFDM_RATE_12M,
341 [ZD_OFDM_RATE_18M] = ZD_CS_OFDM|ZD_OFDM_RATE_18M,
342 [ZD_OFDM_RATE_24M] = ZD_CS_OFDM|ZD_OFDM_RATE_24M,
343 [ZD_OFDM_RATE_36M] = ZD_CS_OFDM|ZD_OFDM_RATE_36M,
344 [ZD_OFDM_RATE_48M] = ZD_CS_OFDM|ZD_OFDM_RATE_48M,
345 [ZD_OFDM_RATE_54M] = ZD_CS_OFDM|ZD_OFDM_RATE_54M,
346 };
347
348 ZD_ASSERT(ZD_CS_RATE_MASK == 0x0f);
349 return typed_rates[cs_rate & ZD_CS_RATE_MASK];
350}
351
352/* Fallback to lowest rate, if rate is unknown. */
353static u8 rate_to_cs_rate(u8 rate)
354{
355 switch (rate) {
356 case IEEE80211_CCK_RATE_2MB:
357 return ZD_CS_CCK_RATE_2M;
358 case IEEE80211_CCK_RATE_5MB:
359 return ZD_CS_CCK_RATE_5_5M;
360 case IEEE80211_CCK_RATE_11MB:
361 return ZD_CS_CCK_RATE_11M;
362 case IEEE80211_OFDM_RATE_6MB:
363 return ZD_OFDM_RATE_6M;
364 case IEEE80211_OFDM_RATE_9MB:
365 return ZD_OFDM_RATE_9M;
366 case IEEE80211_OFDM_RATE_12MB:
367 return ZD_OFDM_RATE_12M;
368 case IEEE80211_OFDM_RATE_18MB:
369 return ZD_OFDM_RATE_18M;
370 case IEEE80211_OFDM_RATE_24MB:
371 return ZD_OFDM_RATE_24M;
372 case IEEE80211_OFDM_RATE_36MB:
373 return ZD_OFDM_RATE_36M;
374 case IEEE80211_OFDM_RATE_48MB:
375 return ZD_OFDM_RATE_48M;
376 case IEEE80211_OFDM_RATE_54MB:
377 return ZD_OFDM_RATE_54M;
378 }
379 return ZD_CS_CCK_RATE_1M;
380}
381
382int zd_mac_set_mode(struct zd_mac *mac, u32 mode)
383{
384 struct ieee80211_device *ieee;
385
386 switch (mode) {
387 case IW_MODE_AUTO:
388 case IW_MODE_ADHOC:
389 case IW_MODE_INFRA:
390 mac->netdev->type = ARPHRD_ETHER;
391 break;
392 case IW_MODE_MONITOR:
393 mac->netdev->type = ARPHRD_IEEE80211_RADIOTAP;
394 break;
395 default:
396 dev_dbg_f(zd_mac_dev(mac), "wrong mode %u\n", mode);
397 return -EINVAL;
398 }
399
400 ieee = zd_mac_to_ieee80211(mac);
401 ZD_ASSERT(!irqs_disabled());
402 spin_lock_irq(&ieee->lock);
403 ieee->iw_mode = mode;
404 spin_unlock_irq(&ieee->lock);
405
406 if (netif_running(mac->netdev))
407 return reset_mode(mac);
408
409 return 0;
410}
411
412int zd_mac_get_mode(struct zd_mac *mac, u32 *mode)
413{
414 unsigned long flags;
415 struct ieee80211_device *ieee;
416
417 ieee = zd_mac_to_ieee80211(mac);
418 spin_lock_irqsave(&ieee->lock, flags);
419 *mode = ieee->iw_mode;
420 spin_unlock_irqrestore(&ieee->lock, flags);
421 return 0;
422}
423
424int zd_mac_get_range(struct zd_mac *mac, struct iw_range *range)
425{
426 int i;
427 const struct channel_range *channel_range;
428 u8 regdomain;
429
430 memset(range, 0, sizeof(*range));
431
432 /* FIXME: Not so important and depends on the mode. For 802.11g
433 * usually this value is used. It seems to be that Bit/s number is
434 * given here.
435 */
436 range->throughput = 27 * 1000 * 1000;
437
438 range->max_qual.qual = 100;
439 range->max_qual.level = 100;
440
441 /* FIXME: Needs still to be tuned. */
442 range->avg_qual.qual = 71;
443 range->avg_qual.level = 80;
444
445 /* FIXME: depends on standard? */
446 range->min_rts = 256;
447 range->max_rts = 2346;
448
449 range->min_frag = MIN_FRAG_THRESHOLD;
450 range->max_frag = MAX_FRAG_THRESHOLD;
451
452 range->max_encoding_tokens = WEP_KEYS;
453 range->num_encoding_sizes = 2;
454 range->encoding_size[0] = 5;
455 range->encoding_size[1] = WEP_KEY_LEN;
456
457 range->we_version_compiled = WIRELESS_EXT;
458 range->we_version_source = 20;
459
460 ZD_ASSERT(!irqs_disabled());
461 spin_lock_irq(&mac->lock);
462 regdomain = mac->regdomain;
463 spin_unlock_irq(&mac->lock);
464 channel_range = zd_channel_range(regdomain);
465
466 range->num_channels = channel_range->end - channel_range->start;
467 range->old_num_channels = range->num_channels;
468 range->num_frequency = range->num_channels;
469 range->old_num_frequency = range->num_frequency;
470
471 for (i = 0; i < range->num_frequency; i++) {
472 struct iw_freq *freq = &range->freq[i];
473 freq->i = channel_range->start + i;
474 zd_channel_to_freq(freq, freq->i);
475 }
476
477 return 0;
478}
479
480static int zd_calc_tx_length_us(u8 *service, u8 cs_rate, u16 tx_length)
481{
482 static const u8 rate_divisor[] = {
483 [ZD_CS_CCK_RATE_1M] = 1,
484 [ZD_CS_CCK_RATE_2M] = 2,
485 [ZD_CS_CCK_RATE_5_5M] = 11, /* bits must be doubled */
486 [ZD_CS_CCK_RATE_11M] = 11,
487 [ZD_OFDM_RATE_6M] = 6,
488 [ZD_OFDM_RATE_9M] = 9,
489 [ZD_OFDM_RATE_12M] = 12,
490 [ZD_OFDM_RATE_18M] = 18,
491 [ZD_OFDM_RATE_24M] = 24,
492 [ZD_OFDM_RATE_36M] = 36,
493 [ZD_OFDM_RATE_48M] = 48,
494 [ZD_OFDM_RATE_54M] = 54,
495 };
496
497 u32 bits = (u32)tx_length * 8;
498 u32 divisor;
499
500 divisor = rate_divisor[cs_rate];
501 if (divisor == 0)
502 return -EINVAL;
503
504 switch (cs_rate) {
505 case ZD_CS_CCK_RATE_5_5M:
506 bits = (2*bits) + 10; /* round up to the next integer */
507 break;
508 case ZD_CS_CCK_RATE_11M:
509 if (service) {
510 u32 t = bits % 11;
511 *service &= ~ZD_PLCP_SERVICE_LENGTH_EXTENSION;
512 if (0 < t && t <= 3) {
513 *service |= ZD_PLCP_SERVICE_LENGTH_EXTENSION;
514 }
515 }
516 bits += 10; /* round up to the next integer */
517 break;
518 }
519
520 return bits/divisor;
521}
522
523enum {
524 R2M_SHORT_PREAMBLE = 0x01,
525 R2M_11A = 0x02,
526};
527
528static u8 cs_rate_to_modulation(u8 cs_rate, int flags)
529{
530 u8 modulation;
531
532 modulation = cs_typed_rate(cs_rate);
533 if (flags & R2M_SHORT_PREAMBLE) {
534 switch (ZD_CS_RATE(modulation)) {
535 case ZD_CS_CCK_RATE_2M:
536 case ZD_CS_CCK_RATE_5_5M:
537 case ZD_CS_CCK_RATE_11M:
538 modulation |= ZD_CS_CCK_PREA_SHORT;
539 return modulation;
540 }
541 }
542 if (flags & R2M_11A) {
543 if (ZD_CS_TYPE(modulation) == ZD_CS_OFDM)
544 modulation |= ZD_CS_OFDM_MODE_11A;
545 }
546 return modulation;
547}
548
549static void cs_set_modulation(struct zd_mac *mac, struct zd_ctrlset *cs,
550 struct ieee80211_hdr_4addr *hdr)
551{
552 struct ieee80211softmac_device *softmac = ieee80211_priv(mac->netdev);
553 u16 ftype = WLAN_FC_GET_TYPE(le16_to_cpu(hdr->frame_ctl));
554 u8 rate, cs_rate;
555 int is_mgt = (ftype == IEEE80211_FTYPE_MGMT) != 0;
556
557 /* FIXME: 802.11a? short preamble? */
558 rate = ieee80211softmac_suggest_txrate(softmac,
559 is_multicast_ether_addr(hdr->addr1), is_mgt);
560
561 cs_rate = rate_to_cs_rate(rate);
562 cs->modulation = cs_rate_to_modulation(cs_rate, 0);
563}
564
565static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,
566 struct ieee80211_hdr_4addr *header)
567{
568 unsigned int tx_length = le16_to_cpu(cs->tx_length);
569 u16 fctl = le16_to_cpu(header->frame_ctl);
570 u16 ftype = WLAN_FC_GET_TYPE(fctl);
571 u16 stype = WLAN_FC_GET_STYPE(fctl);
572
573 /*
574 * CONTROL:
575 * - start at 0x00
576 * - if fragment 0, enable bit 0
577 * - if backoff needed, enable bit 0
578 * - if burst (backoff not needed) disable bit 0
579 * - if multicast, enable bit 1
580 * - if PS-POLL frame, enable bit 2
581 * - if in INDEPENDENT_BSS mode and zd1205_DestPowerSave, then enable
582 * bit 4 (FIXME: wtf)
583 * - if frag_len > RTS threshold, set bit 5 as long if it isnt
584 * multicast or mgt
585 * - if bit 5 is set, and we are in OFDM mode, unset bit 5 and set bit
586 * 7
587 */
588
589 cs->control = 0;
590
591 /* First fragment */
592 if (WLAN_GET_SEQ_FRAG(le16_to_cpu(header->seq_ctl)) == 0)
593 cs->control |= ZD_CS_NEED_RANDOM_BACKOFF;
594
595 /* Multicast */
596 if (is_multicast_ether_addr(header->addr1))
597 cs->control |= ZD_CS_MULTICAST;
598
599 /* PS-POLL */
600 if (stype == IEEE80211_STYPE_PSPOLL)
601 cs->control |= ZD_CS_PS_POLL_FRAME;
602
603 if (!is_multicast_ether_addr(header->addr1) &&
604 ftype != IEEE80211_FTYPE_MGMT &&
605 tx_length > zd_netdev_ieee80211(mac->netdev)->rts)
606 {
607 /* FIXME: check the logic */
608 if (ZD_CS_TYPE(cs->modulation) == ZD_CS_OFDM) {
609 /* 802.11g */
610 cs->control |= ZD_CS_SELF_CTS;
611 } else { /* 802.11b */
612 cs->control |= ZD_CS_RTS;
613 }
614 }
615
616 /* FIXME: Management frame? */
617}
618
619static int fill_ctrlset(struct zd_mac *mac,
620 struct ieee80211_txb *txb,
621 int frag_num)
622{
623 int r;
624 struct sk_buff *skb = txb->fragments[frag_num];
625 struct ieee80211_hdr_4addr *hdr =
626 (struct ieee80211_hdr_4addr *) skb->data;
627 unsigned int frag_len = skb->len + IEEE80211_FCS_LEN;
628 unsigned int next_frag_len;
629 unsigned int packet_length;
630 struct zd_ctrlset *cs = (struct zd_ctrlset *)
631 skb_push(skb, sizeof(struct zd_ctrlset));
632
633 if (frag_num+1 < txb->nr_frags) {
634 next_frag_len = txb->fragments[frag_num+1]->len +
635 IEEE80211_FCS_LEN;
636 } else {
637 next_frag_len = 0;
638 }
639 ZD_ASSERT(frag_len <= 0xffff);
640 ZD_ASSERT(next_frag_len <= 0xffff);
641
642 cs_set_modulation(mac, cs, hdr);
643
644 cs->tx_length = cpu_to_le16(frag_len);
645
646 cs_set_control(mac, cs, hdr);
647
648 packet_length = frag_len + sizeof(struct zd_ctrlset) + 10;
649 ZD_ASSERT(packet_length <= 0xffff);
650 /* ZD1211B: Computing the length difference this way, gives us
651 * flexibility to compute the packet length.
652 */
653 cs->packet_length = cpu_to_le16(mac->chip.is_zd1211b ?
654 packet_length - frag_len : packet_length);
655
656 /*
657 * CURRENT LENGTH:
658 * - transmit frame length in microseconds
659 * - seems to be derived from frame length
660 * - see Cal_Us_Service() in zdinlinef.h
661 * - if macp->bTxBurstEnable is enabled, then multiply by 4
662 * - bTxBurstEnable is never set in the vendor driver
663 *
664 * SERVICE:
665 * - "for PLCP configuration"
666 * - always 0 except in some situations at 802.11b 11M
667 * - see line 53 of zdinlinef.h
668 */
669 cs->service = 0;
670 r = zd_calc_tx_length_us(&cs->service, ZD_CS_RATE(cs->modulation),
671 le16_to_cpu(cs->tx_length));
672 if (r < 0)
673 return r;
674 cs->current_length = cpu_to_le16(r);
675
676 if (next_frag_len == 0) {
677 cs->next_frame_length = 0;
678 } else {
679 r = zd_calc_tx_length_us(NULL, ZD_CS_RATE(cs->modulation),
680 next_frag_len);
681 if (r < 0)
682 return r;
683 cs->next_frame_length = cpu_to_le16(r);
684 }
685
686 return 0;
687}
688
689static int zd_mac_tx(struct zd_mac *mac, struct ieee80211_txb *txb, int pri)
690{
691 int i, r;
692
693 for (i = 0; i < txb->nr_frags; i++) {
694 struct sk_buff *skb = txb->fragments[i];
695
696 r = fill_ctrlset(mac, txb, i);
697 if (r)
698 return r;
699 r = zd_usb_tx(&mac->chip.usb, skb->data, skb->len);
700 if (r)
701 return r;
702 }
703
704 /* FIXME: shouldn't this be handled by the upper layers? */
705 mac->netdev->trans_start = jiffies;
706
707 ieee80211_txb_free(txb);
708 return 0;
709}
710
711struct zd_rt_hdr {
712 struct ieee80211_radiotap_header rt_hdr;
713 u8 rt_flags;
714 u16 rt_channel;
715 u16 rt_chbitmask;
716 u16 rt_rate;
717};
718
719static void fill_rt_header(void *buffer, struct zd_mac *mac,
720 const struct ieee80211_rx_stats *stats,
721 const struct rx_status *status)
722{
723 struct zd_rt_hdr *hdr = buffer;
724
725 hdr->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
726 hdr->rt_hdr.it_pad = 0;
727 hdr->rt_hdr.it_len = cpu_to_le16(sizeof(struct zd_rt_hdr));
728 hdr->rt_hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
729 (1 << IEEE80211_RADIOTAP_CHANNEL) |
730 (1 << IEEE80211_RADIOTAP_RATE));
731
732 hdr->rt_flags = 0;
733 if (status->decryption_type & (ZD_RX_WEP64|ZD_RX_WEP128|ZD_RX_WEP256))
734 hdr->rt_flags |= IEEE80211_RADIOTAP_F_WEP;
735
736 /* FIXME: 802.11a */
737 hdr->rt_channel = cpu_to_le16(ieee80211chan2mhz(
738 _zd_chip_get_channel(&mac->chip)));
739 hdr->rt_chbitmask = cpu_to_le16(IEEE80211_CHAN_2GHZ |
740 ((status->frame_status & ZD_RX_FRAME_MODULATION_MASK) ==
741 ZD_RX_OFDM ? IEEE80211_CHAN_OFDM : IEEE80211_CHAN_CCK));
742
743 hdr->rt_rate = stats->rate / 5;
744}
745
746/* Returns 1 if the data packet is for us and 0 otherwise. */
747static int is_data_packet_for_us(struct ieee80211_device *ieee,
748 struct ieee80211_hdr_4addr *hdr)
749{
750 struct net_device *netdev = ieee->dev;
751 u16 fc = le16_to_cpu(hdr->frame_ctl);
752
753 ZD_ASSERT(WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA);
754
755 switch (ieee->iw_mode) {
756 case IW_MODE_ADHOC:
757 if ((fc & (IEEE80211_FCTL_TODS|IEEE80211_FCTL_FROMDS)) != 0 ||
758 memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) != 0)
759 return 0;
760 break;
761 case IW_MODE_AUTO:
762 case IW_MODE_INFRA:
763 if ((fc & (IEEE80211_FCTL_TODS|IEEE80211_FCTL_FROMDS)) !=
764 IEEE80211_FCTL_FROMDS ||
765 memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) != 0)
766 return 0;
767 break;
768 default:
769 ZD_ASSERT(ieee->iw_mode != IW_MODE_MONITOR);
770 return 0;
771 }
772
773 return memcmp(hdr->addr1, netdev->dev_addr, ETH_ALEN) == 0 ||
774 is_multicast_ether_addr(hdr->addr1) ||
775 (netdev->flags & IFF_PROMISC);
776}
777
778/* Filters receiving packets. If it returns 1 send it to ieee80211_rx, if 0
779 * return. If an error is detected -EINVAL is returned. ieee80211_rx_mgt() is
780 * called here.
781 *
782 * It has been based on ieee80211_rx_any.
783 */
784static int filter_rx(struct ieee80211_device *ieee,
785 const u8 *buffer, unsigned int length,
786 struct ieee80211_rx_stats *stats)
787{
788 struct ieee80211_hdr_4addr *hdr;
789 u16 fc;
790
791 if (ieee->iw_mode == IW_MODE_MONITOR)
792 return 1;
793
794 hdr = (struct ieee80211_hdr_4addr *)buffer;
795 fc = le16_to_cpu(hdr->frame_ctl);
796 if ((fc & IEEE80211_FCTL_VERS) != 0)
797 return -EINVAL;
798
799 switch (WLAN_FC_GET_TYPE(fc)) {
800 case IEEE80211_FTYPE_MGMT:
801 if (length < sizeof(struct ieee80211_hdr_3addr))
802 return -EINVAL;
803 ieee80211_rx_mgt(ieee, hdr, stats);
804 return 0;
805 case IEEE80211_FTYPE_CTL:
806 /* Ignore invalid short buffers */
807 return 0;
808 case IEEE80211_FTYPE_DATA:
809 if (length < sizeof(struct ieee80211_hdr_3addr))
810 return -EINVAL;
811 return is_data_packet_for_us(ieee, hdr);
812 }
813
814 return -EINVAL;
815}
816
817static void update_qual_rssi(struct zd_mac *mac, u8 qual_percent, u8 rssi)
818{
819 unsigned long flags;
820
821 spin_lock_irqsave(&mac->lock, flags);
822 mac->qual_average = (7 * mac->qual_average + qual_percent) / 8;
823 mac->rssi_average = (7 * mac->rssi_average + rssi) / 8;
824 spin_unlock_irqrestore(&mac->lock, flags);
825}
826
827static int fill_rx_stats(struct ieee80211_rx_stats *stats,
828 const struct rx_status **pstatus,
829 struct zd_mac *mac,
830 const u8 *buffer, unsigned int length)
831{
832 const struct rx_status *status;
833
834 *pstatus = status = zd_tail(buffer, length, sizeof(struct rx_status));
835 if (status->frame_status & ZD_RX_ERROR) {
836 /* FIXME: update? */
837 return -EINVAL;
838 }
839 memset(stats, 0, sizeof(struct ieee80211_rx_stats));
840 stats->len = length - (ZD_PLCP_HEADER_SIZE + IEEE80211_FCS_LEN +
841 + sizeof(struct rx_status));
842 /* FIXME: 802.11a */
843 stats->freq = IEEE80211_24GHZ_BAND;
844 stats->received_channel = _zd_chip_get_channel(&mac->chip);
845 stats->rssi = zd_rx_strength_percent(status->signal_strength);
846 stats->signal = zd_rx_qual_percent(buffer,
847 length - sizeof(struct rx_status),
848 status);
849 stats->mask = IEEE80211_STATMASK_RSSI | IEEE80211_STATMASK_SIGNAL;
850 stats->rate = zd_rx_rate(buffer, status);
851 if (stats->rate)
852 stats->mask |= IEEE80211_STATMASK_RATE;
853
854 update_qual_rssi(mac, stats->signal, stats->rssi);
855 return 0;
856}
857
858int zd_mac_rx(struct zd_mac *mac, const u8 *buffer, unsigned int length)
859{
860 int r;
861 struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
862 struct ieee80211_rx_stats stats;
863 const struct rx_status *status;
864 struct sk_buff *skb;
865
866 if (length < ZD_PLCP_HEADER_SIZE + IEEE80211_1ADDR_LEN +
867 IEEE80211_FCS_LEN + sizeof(struct rx_status))
868 return -EINVAL;
869
870 r = fill_rx_stats(&stats, &status, mac, buffer, length);
871 if (r)
872 return r;
873
874 length -= ZD_PLCP_HEADER_SIZE+IEEE80211_FCS_LEN+
875 sizeof(struct rx_status);
876 buffer += ZD_PLCP_HEADER_SIZE;
877
878 r = filter_rx(ieee, buffer, length, &stats);
879 if (r <= 0)
880 return r;
881
882 skb = dev_alloc_skb(sizeof(struct zd_rt_hdr) + length);
883 if (!skb)
884 return -ENOMEM;
885 if (ieee->iw_mode == IW_MODE_MONITOR)
886 fill_rt_header(skb_put(skb, sizeof(struct zd_rt_hdr)), mac,
887 &stats, status);
888 memcpy(skb_put(skb, length), buffer, length);
889
890 r = ieee80211_rx(ieee, skb, &stats);
891 if (!r) {
892 ZD_ASSERT(in_irq());
893 dev_kfree_skb_irq(skb);
894 }
895 return 0;
896}
897
898static int netdev_tx(struct ieee80211_txb *txb, struct net_device *netdev,
899 int pri)
900{
901 return zd_mac_tx(zd_netdev_mac(netdev), txb, pri);
902}
903
904static void set_security(struct net_device *netdev,
905 struct ieee80211_security *sec)
906{
907 struct ieee80211_device *ieee = zd_netdev_ieee80211(netdev);
908 struct ieee80211_security *secinfo = &ieee->sec;
909 int keyidx;
910
911 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)), "\n");
912
913 for (keyidx = 0; keyidx<WEP_KEYS; keyidx++)
914 if (sec->flags & (1<<keyidx)) {
915 secinfo->encode_alg[keyidx] = sec->encode_alg[keyidx];
916 secinfo->key_sizes[keyidx] = sec->key_sizes[keyidx];
917 memcpy(secinfo->keys[keyidx], sec->keys[keyidx],
918 SCM_KEY_LEN);
919 }
920
921 if (sec->flags & SEC_ACTIVE_KEY) {
922 secinfo->active_key = sec->active_key;
923 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
924 " .active_key = %d\n", sec->active_key);
925 }
926 if (sec->flags & SEC_UNICAST_GROUP) {
927 secinfo->unicast_uses_group = sec->unicast_uses_group;
928 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
929 " .unicast_uses_group = %d\n",
930 sec->unicast_uses_group);
931 }
932 if (sec->flags & SEC_LEVEL) {
933 secinfo->level = sec->level;
934 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
935 " .level = %d\n", sec->level);
936 }
937 if (sec->flags & SEC_ENABLED) {
938 secinfo->enabled = sec->enabled;
939 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
940 " .enabled = %d\n", sec->enabled);
941 }
942 if (sec->flags & SEC_ENCRYPT) {
943 secinfo->encrypt = sec->encrypt;
944 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
945 " .encrypt = %d\n", sec->encrypt);
946 }
947 if (sec->flags & SEC_AUTH_MODE) {
948 secinfo->auth_mode = sec->auth_mode;
949 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
950 " .auth_mode = %d\n", sec->auth_mode);
951 }
952}
953
954static void ieee_init(struct ieee80211_device *ieee)
955{
956 ieee->mode = IEEE_B | IEEE_G;
957 ieee->freq_band = IEEE80211_24GHZ_BAND;
958 ieee->modulation = IEEE80211_OFDM_MODULATION | IEEE80211_CCK_MODULATION;
959 ieee->tx_headroom = sizeof(struct zd_ctrlset);
960 ieee->set_security = set_security;
961 ieee->hard_start_xmit = netdev_tx;
962
963 /* Software encryption/decryption for now */
964 ieee->host_build_iv = 0;
965 ieee->host_encrypt = 1;
966 ieee->host_decrypt = 1;
967
968 /* FIXME: default to managed mode, until ieee80211 and zd1211rw can
969 * correctly support AUTO */
970 ieee->iw_mode = IW_MODE_INFRA;
971}
972
973static void softmac_init(struct ieee80211softmac_device *sm)
974{
975 sm->set_channel = set_channel;
976}
977
978struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev)
979{
980 struct zd_mac *mac = zd_netdev_mac(ndev);
981 struct iw_statistics *iw_stats = &mac->iw_stats;
982
983 memset(iw_stats, 0, sizeof(struct iw_statistics));
984 /* We are not setting the status, because ieee->state is not updated
985 * at all and this driver doesn't track authentication state.
986 */
987 spin_lock_irq(&mac->lock);
988 iw_stats->qual.qual = mac->qual_average;
989 iw_stats->qual.level = mac->rssi_average;
990 iw_stats->qual.updated = IW_QUAL_QUAL_UPDATED|IW_QUAL_LEVEL_UPDATED|
991 IW_QUAL_NOISE_INVALID;
992 spin_unlock_irq(&mac->lock);
993 /* TODO: update counter */
994 return iw_stats;
995}
996
997#ifdef DEBUG
998static const char* decryption_types[] = {
999 [ZD_RX_NO_WEP] = "none",
1000 [ZD_RX_WEP64] = "WEP64",
1001 [ZD_RX_TKIP] = "TKIP",
1002 [ZD_RX_AES] = "AES",
1003 [ZD_RX_WEP128] = "WEP128",
1004 [ZD_RX_WEP256] = "WEP256",
1005};
1006
1007static const char *decryption_type_string(u8 type)
1008{
1009 const char *s;
1010
1011 if (type < ARRAY_SIZE(decryption_types)) {
1012 s = decryption_types[type];
1013 } else {
1014 s = NULL;
1015 }
1016 return s ? s : "unknown";
1017}
1018
1019static int is_ofdm(u8 frame_status)
1020{
1021 return (frame_status & ZD_RX_OFDM);
1022}
1023
1024void zd_dump_rx_status(const struct rx_status *status)
1025{
1026 const char* modulation;
1027 u8 quality;
1028
1029 if (is_ofdm(status->frame_status)) {
1030 modulation = "ofdm";
1031 quality = status->signal_quality_ofdm;
1032 } else {
1033 modulation = "cck";
1034 quality = status->signal_quality_cck;
1035 }
1036 pr_debug("rx status %s strength %#04x qual %#04x decryption %s\n",
1037 modulation, status->signal_strength, quality,
1038 decryption_type_string(status->decryption_type));
1039 if (status->frame_status & ZD_RX_ERROR) {
1040 pr_debug("rx error %s%s%s%s%s%s\n",
1041 (status->frame_status & ZD_RX_TIMEOUT_ERROR) ?
1042 "timeout " : "",
1043 (status->frame_status & ZD_RX_FIFO_OVERRUN_ERROR) ?
1044 "fifo " : "",
1045 (status->frame_status & ZD_RX_DECRYPTION_ERROR) ?
1046 "decryption " : "",
1047 (status->frame_status & ZD_RX_CRC32_ERROR) ?
1048 "crc32 " : "",
1049 (status->frame_status & ZD_RX_NO_ADDR1_MATCH_ERROR) ?
1050 "addr1 " : "",
1051 (status->frame_status & ZD_RX_CRC16_ERROR) ?
1052 "crc16" : "");
1053 }
1054}
1055#endif /* DEBUG */
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h
new file mode 100644
index 000000000000..71e382c589ee
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_mac.h
@@ -0,0 +1,190 @@
1/* zd_mac.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#ifndef _ZD_MAC_H
19#define _ZD_MAC_H
20
21#include <linux/wireless.h>
22#include <linux/kernel.h>
23#include <net/ieee80211.h>
24#include <net/ieee80211softmac.h>
25
26#include "zd_chip.h"
27#include "zd_netdev.h"
28
29struct zd_ctrlset {
30 u8 modulation;
31 __le16 tx_length;
32 u8 control;
33 /* stores only the difference to tx_length on ZD1211B */
34 __le16 packet_length;
35 __le16 current_length;
36 u8 service;
37 __le16 next_frame_length;
38} __attribute__((packed));
39
40#define ZD_CS_RESERVED_SIZE 25
41
42/* zd_crtlset field modulation */
43#define ZD_CS_RATE_MASK 0x0f
44#define ZD_CS_TYPE_MASK 0x10
45#define ZD_CS_RATE(modulation) ((modulation) & ZD_CS_RATE_MASK)
46#define ZD_CS_TYPE(modulation) ((modulation) & ZD_CS_TYPE_MASK)
47
48#define ZD_CS_CCK 0x00
49#define ZD_CS_OFDM 0x10
50
51#define ZD_CS_CCK_RATE_1M 0x00
52#define ZD_CS_CCK_RATE_2M 0x01
53#define ZD_CS_CCK_RATE_5_5M 0x02
54#define ZD_CS_CCK_RATE_11M 0x03
55/* The rates for OFDM are encoded as in the PLCP header. Use ZD_OFDM_RATE_*.
56 */
57
58/* bit 5 is preamble (when in CCK mode), or a/g selection (when in OFDM mode) */
59#define ZD_CS_CCK_PREA_LONG 0x00
60#define ZD_CS_CCK_PREA_SHORT 0x20
61#define ZD_CS_OFDM_MODE_11G 0x00
62#define ZD_CS_OFDM_MODE_11A 0x20
63
64/* zd_ctrlset control field */
65#define ZD_CS_NEED_RANDOM_BACKOFF 0x01
66#define ZD_CS_MULTICAST 0x02
67
68#define ZD_CS_FRAME_TYPE_MASK 0x0c
69#define ZD_CS_DATA_FRAME 0x00
70#define ZD_CS_PS_POLL_FRAME 0x04
71#define ZD_CS_MANAGEMENT_FRAME 0x08
72#define ZD_CS_NO_SEQUENCE_CTL_FRAME 0x0c
73
74#define ZD_CS_WAKE_DESTINATION 0x10
75#define ZD_CS_RTS 0x20
76#define ZD_CS_ENCRYPT 0x40
77#define ZD_CS_SELF_CTS 0x80
78
79/* Incoming frames are prepended by a PLCP header */
80#define ZD_PLCP_HEADER_SIZE 5
81
82struct rx_length_info {
83 __le16 length[3];
84 __le16 tag;
85} __attribute__((packed));
86
87#define RX_LENGTH_INFO_TAG 0x697e
88
89struct rx_status {
90 /* rssi */
91 u8 signal_strength;
92 u8 signal_quality_cck;
93 u8 signal_quality_ofdm;
94 u8 decryption_type;
95 u8 frame_status;
96} __attribute__((packed));
97
98/* rx_status field decryption_type */
99#define ZD_RX_NO_WEP 0
100#define ZD_RX_WEP64 1
101#define ZD_RX_TKIP 2
102#define ZD_RX_AES 4
103#define ZD_RX_WEP128 5
104#define ZD_RX_WEP256 6
105
106/* rx_status field frame_status */
107#define ZD_RX_FRAME_MODULATION_MASK 0x01
108#define ZD_RX_CCK 0x00
109#define ZD_RX_OFDM 0x01
110
111#define ZD_RX_TIMEOUT_ERROR 0x02
112#define ZD_RX_FIFO_OVERRUN_ERROR 0x04
113#define ZD_RX_DECRYPTION_ERROR 0x08
114#define ZD_RX_CRC32_ERROR 0x10
115#define ZD_RX_NO_ADDR1_MATCH_ERROR 0x20
116#define ZD_RX_CRC16_ERROR 0x40
117#define ZD_RX_ERROR 0x80
118
119enum mac_flags {
120 MAC_FIXED_CHANNEL = 0x01,
121};
122
123struct zd_mac {
124 struct net_device *netdev;
125 struct zd_chip chip;
126 spinlock_t lock;
127 /* Unlocked reading possible */
128 struct iw_statistics iw_stats;
129 u8 qual_average;
130 u8 rssi_average;
131 u8 regdomain;
132 u8 default_regdomain;
133 u8 requested_channel;
134};
135
136static inline struct ieee80211_device *zd_mac_to_ieee80211(struct zd_mac *mac)
137{
138 return zd_netdev_ieee80211(mac->netdev);
139}
140
141static inline struct zd_mac *zd_netdev_mac(struct net_device *netdev)
142{
143 return ieee80211softmac_priv(netdev);
144}
145
146static inline struct zd_mac *zd_chip_to_mac(struct zd_chip *chip)
147{
148 return container_of(chip, struct zd_mac, chip);
149}
150
151static inline struct zd_mac *zd_usb_to_mac(struct zd_usb *usb)
152{
153 return zd_chip_to_mac(zd_usb_to_chip(usb));
154}
155
156#define zd_mac_dev(mac) (zd_chip_dev(&(mac)->chip))
157
158int zd_mac_init(struct zd_mac *mac,
159 struct net_device *netdev,
160 struct usb_interface *intf);
161void zd_mac_clear(struct zd_mac *mac);
162
163int zd_mac_init_hw(struct zd_mac *mac, u8 device_type);
164
165int zd_mac_open(struct net_device *netdev);
166int zd_mac_stop(struct net_device *netdev);
167int zd_mac_set_mac_address(struct net_device *dev, void *p);
168
169int zd_mac_rx(struct zd_mac *mac, const u8 *buffer, unsigned int length);
170
171int zd_mac_set_regdomain(struct zd_mac *zd_mac, u8 regdomain);
172u8 zd_mac_get_regdomain(struct zd_mac *zd_mac);
173
174int zd_mac_request_channel(struct zd_mac *mac, u8 channel);
175int zd_mac_get_channel(struct zd_mac *mac, u8 *channel, u8 *flags);
176
177int zd_mac_set_mode(struct zd_mac *mac, u32 mode);
178int zd_mac_get_mode(struct zd_mac *mac, u32 *mode);
179
180int zd_mac_get_range(struct zd_mac *mac, struct iw_range *range);
181
182struct iw_statistics *zd_mac_get_wireless_stats(struct net_device *ndev);
183
184#ifdef DEBUG
185void zd_dump_rx_status(const struct rx_status *status);
186#else
187#define zd_dump_rx_status(status)
188#endif /* DEBUG */
189
190#endif /* _ZD_MAC_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_netdev.c b/drivers/net/wireless/zd1211rw/zd_netdev.c
new file mode 100644
index 000000000000..9df232c2c863
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_netdev.c
@@ -0,0 +1,267 @@
1/* zd_netdev.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/netdevice.h>
19#include <linux/etherdevice.h>
20#include <linux/skbuff.h>
21#include <net/ieee80211.h>
22#include <net/ieee80211softmac.h>
23#include <net/ieee80211softmac_wx.h>
24#include <net/iw_handler.h>
25
26#include "zd_def.h"
27#include "zd_netdev.h"
28#include "zd_mac.h"
29#include "zd_ieee80211.h"
30
31/* Region 0 means reset regdomain to default. */
32static int zd_set_regdomain(struct net_device *netdev,
33 struct iw_request_info *info,
34 union iwreq_data *req, char *extra)
35{
36 const u8 *regdomain = (u8 *)req;
37 return zd_mac_set_regdomain(zd_netdev_mac(netdev), *regdomain);
38}
39
40static int zd_get_regdomain(struct net_device *netdev,
41 struct iw_request_info *info,
42 union iwreq_data *req, char *extra)
43{
44 u8 *regdomain = (u8 *)req;
45 if (!regdomain)
46 return -EINVAL;
47 *regdomain = zd_mac_get_regdomain(zd_netdev_mac(netdev));
48 return 0;
49}
50
51static const struct iw_priv_args zd_priv_args[] = {
52 {
53 .cmd = ZD_PRIV_SET_REGDOMAIN,
54 .set_args = IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
55 .name = "set_regdomain",
56 },
57 {
58 .cmd = ZD_PRIV_GET_REGDOMAIN,
59 .get_args = IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
60 .name = "get_regdomain",
61 },
62};
63
64#define PRIV_OFFSET(x) [(x)-SIOCIWFIRSTPRIV]
65
66static const iw_handler zd_priv_handler[] = {
67 PRIV_OFFSET(ZD_PRIV_SET_REGDOMAIN) = zd_set_regdomain,
68 PRIV_OFFSET(ZD_PRIV_GET_REGDOMAIN) = zd_get_regdomain,
69};
70
71static int iw_get_name(struct net_device *netdev,
72 struct iw_request_info *info,
73 union iwreq_data *req, char *extra)
74{
75 /* FIXME: check whether 802.11a will also supported, add also
76 * zd1211B, if we support it.
77 */
78 strlcpy(req->name, "802.11g zd1211", IFNAMSIZ);
79 return 0;
80}
81
82static int iw_set_freq(struct net_device *netdev,
83 struct iw_request_info *info,
84 union iwreq_data *req, char *extra)
85{
86 int r;
87 struct zd_mac *mac = zd_netdev_mac(netdev);
88 struct iw_freq *freq = &req->freq;
89 u8 channel;
90
91 r = zd_find_channel(&channel, freq);
92 if (r < 0)
93 return r;
94 r = zd_mac_request_channel(mac, channel);
95 return r;
96}
97
98static int iw_get_freq(struct net_device *netdev,
99 struct iw_request_info *info,
100 union iwreq_data *req, char *extra)
101{
102 int r;
103 struct zd_mac *mac = zd_netdev_mac(netdev);
104 struct iw_freq *freq = &req->freq;
105 u8 channel;
106 u8 flags;
107
108 r = zd_mac_get_channel(mac, &channel, &flags);
109 if (r)
110 return r;
111
112 freq->flags = (flags & MAC_FIXED_CHANNEL) ?
113 IW_FREQ_FIXED : IW_FREQ_AUTO;
114 dev_dbg_f(zd_mac_dev(mac), "channel %s\n",
115 (flags & MAC_FIXED_CHANNEL) ? "fixed" : "auto");
116 return zd_channel_to_freq(freq, channel);
117}
118
119static int iw_set_mode(struct net_device *netdev,
120 struct iw_request_info *info,
121 union iwreq_data *req, char *extra)
122{
123 return zd_mac_set_mode(zd_netdev_mac(netdev), req->mode);
124}
125
126static int iw_get_mode(struct net_device *netdev,
127 struct iw_request_info *info,
128 union iwreq_data *req, char *extra)
129{
130 return zd_mac_get_mode(zd_netdev_mac(netdev), &req->mode);
131}
132
133static int iw_get_range(struct net_device *netdev,
134 struct iw_request_info *info,
135 union iwreq_data *req, char *extra)
136{
137 struct iw_range *range = (struct iw_range *)extra;
138
139 dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)), "\n");
140 req->data.length = sizeof(*range);
141 return zd_mac_get_range(zd_netdev_mac(netdev), range);
142}
143
144static int iw_set_encode(struct net_device *netdev,
145 struct iw_request_info *info,
146 union iwreq_data *data,
147 char *extra)
148{
149 return ieee80211_wx_set_encode(zd_netdev_ieee80211(netdev), info,
150 data, extra);
151}
152
153static int iw_get_encode(struct net_device *netdev,
154 struct iw_request_info *info,
155 union iwreq_data *data,
156 char *extra)
157{
158 return ieee80211_wx_get_encode(zd_netdev_ieee80211(netdev), info,
159 data, extra);
160}
161
162static int iw_set_encodeext(struct net_device *netdev,
163 struct iw_request_info *info,
164 union iwreq_data *data,
165 char *extra)
166{
167 return ieee80211_wx_set_encodeext(zd_netdev_ieee80211(netdev), info,
168 data, extra);
169}
170
171static int iw_get_encodeext(struct net_device *netdev,
172 struct iw_request_info *info,
173 union iwreq_data *data,
174 char *extra)
175{
176 return ieee80211_wx_get_encodeext(zd_netdev_ieee80211(netdev), info,
177 data, extra);
178}
179
180#define WX(x) [(x)-SIOCIWFIRST]
181
182static const iw_handler zd_standard_iw_handlers[] = {
183 WX(SIOCGIWNAME) = iw_get_name,
184 WX(SIOCSIWFREQ) = iw_set_freq,
185 WX(SIOCGIWFREQ) = iw_get_freq,
186 WX(SIOCSIWMODE) = iw_set_mode,
187 WX(SIOCGIWMODE) = iw_get_mode,
188 WX(SIOCGIWRANGE) = iw_get_range,
189 WX(SIOCSIWENCODE) = iw_set_encode,
190 WX(SIOCGIWENCODE) = iw_get_encode,
191 WX(SIOCSIWENCODEEXT) = iw_set_encodeext,
192 WX(SIOCGIWENCODEEXT) = iw_get_encodeext,
193 WX(SIOCSIWAUTH) = ieee80211_wx_set_auth,
194 WX(SIOCGIWAUTH) = ieee80211_wx_get_auth,
195 WX(SIOCSIWSCAN) = ieee80211softmac_wx_trigger_scan,
196 WX(SIOCGIWSCAN) = ieee80211softmac_wx_get_scan_results,
197 WX(SIOCSIWESSID) = ieee80211softmac_wx_set_essid,
198 WX(SIOCGIWESSID) = ieee80211softmac_wx_get_essid,
199 WX(SIOCSIWAP) = ieee80211softmac_wx_set_wap,
200 WX(SIOCGIWAP) = ieee80211softmac_wx_get_wap,
201 WX(SIOCSIWRATE) = ieee80211softmac_wx_set_rate,
202 WX(SIOCGIWRATE) = ieee80211softmac_wx_get_rate,
203 WX(SIOCSIWGENIE) = ieee80211softmac_wx_set_genie,
204 WX(SIOCGIWGENIE) = ieee80211softmac_wx_get_genie,
205 WX(SIOCSIWMLME) = ieee80211softmac_wx_set_mlme,
206};
207
208static const struct iw_handler_def iw_handler_def = {
209 .standard = zd_standard_iw_handlers,
210 .num_standard = ARRAY_SIZE(zd_standard_iw_handlers),
211 .private = zd_priv_handler,
212 .num_private = ARRAY_SIZE(zd_priv_handler),
213 .private_args = zd_priv_args,
214 .num_private_args = ARRAY_SIZE(zd_priv_args),
215 .get_wireless_stats = zd_mac_get_wireless_stats,
216};
217
218struct net_device *zd_netdev_alloc(struct usb_interface *intf)
219{
220 int r;
221 struct net_device *netdev;
222 struct zd_mac *mac;
223
224 netdev = alloc_ieee80211softmac(sizeof(struct zd_mac));
225 if (!netdev) {
226 dev_dbg_f(&intf->dev, "out of memory\n");
227 return NULL;
228 }
229
230 mac = zd_netdev_mac(netdev);
231 r = zd_mac_init(mac, netdev, intf);
232 if (r) {
233 usb_set_intfdata(intf, NULL);
234 free_ieee80211(netdev);
235 return NULL;
236 }
237
238 SET_MODULE_OWNER(netdev);
239 SET_NETDEV_DEV(netdev, &intf->dev);
240
241 dev_dbg_f(&intf->dev, "netdev->flags %#06hx\n", netdev->flags);
242 dev_dbg_f(&intf->dev, "netdev->features %#010lx\n", netdev->features);
243
244 netdev->open = zd_mac_open;
245 netdev->stop = zd_mac_stop;
246 /* netdev->get_stats = */
247 /* netdev->set_multicast_list = */
248 netdev->set_mac_address = zd_mac_set_mac_address;
249 netdev->wireless_handlers = &iw_handler_def;
250 /* netdev->ethtool_ops = */
251
252 return netdev;
253}
254
255void zd_netdev_free(struct net_device *netdev)
256{
257 if (!netdev)
258 return;
259
260 zd_mac_clear(zd_netdev_mac(netdev));
261 free_ieee80211(netdev);
262}
263
264void zd_netdev_disconnect(struct net_device *netdev)
265{
266 unregister_netdev(netdev);
267}
diff --git a/drivers/net/wireless/zd1211rw/zd_netdev.h b/drivers/net/wireless/zd1211rw/zd_netdev.h
new file mode 100644
index 000000000000..374a957073c1
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_netdev.h
@@ -0,0 +1,45 @@
1/* zd_netdev.h: Header for net device related functions.
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#ifndef _ZD_NETDEV_H
19#define _ZD_NETDEV_H
20
21#include <linux/usb.h>
22#include <linux/netdevice.h>
23#include <net/ieee80211.h>
24
25#define ZD_PRIV_SET_REGDOMAIN (SIOCIWFIRSTPRIV)
26#define ZD_PRIV_GET_REGDOMAIN (SIOCIWFIRSTPRIV+1)
27
28static inline struct ieee80211_device *zd_netdev_ieee80211(
29 struct net_device *ndev)
30{
31 return netdev_priv(ndev);
32}
33
34static inline struct net_device *zd_ieee80211_to_netdev(
35 struct ieee80211_device *ieee)
36{
37 return ieee->dev;
38}
39
40struct net_device *zd_netdev_alloc(struct usb_interface *intf);
41void zd_netdev_free(struct net_device *netdev);
42
43void zd_netdev_disconnect(struct net_device *netdev);
44
45#endif /* _ZD_NETDEV_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_rf.c b/drivers/net/wireless/zd1211rw/zd_rf.c
new file mode 100644
index 000000000000..d3770d2c61bc
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_rf.c
@@ -0,0 +1,151 @@
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
26static 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
45const char *zd_rf_name(u8 type)
46{
47 if (type & 0xf0)
48 type = 0;
49 return rfs[type];
50}
51
52void zd_rf_init(struct zd_rf *rf)
53{
54 memset(rf, 0, sizeof(*rf));
55}
56
57void zd_rf_clear(struct zd_rf *rf)
58{
59 memset(rf, 0, sizeof(*rf));
60}
61
62int 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;
79 default:
80 dev_err(zd_chip_dev(chip),
81 "RF %s %#x is not supported\n", zd_rf_name(type), type);
82 rf->type = 0;
83 return -ENODEV;
84 }
85
86 rf->type = type;
87
88 r = zd_chip_lock_phy_regs(chip);
89 if (r)
90 return r;
91 t = rf->init_hw(rf);
92 r = zd_chip_unlock_phy_regs(chip);
93 if (t)
94 r = t;
95 return r;
96}
97
98int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size)
99{
100 return scnprintf(buffer, size, "%s", zd_rf_name(rf->type));
101}
102
103int zd_rf_set_channel(struct zd_rf *rf, u8 channel)
104{
105 int r;
106
107 ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex));
108 if (channel < MIN_CHANNEL24)
109 return -EINVAL;
110 if (channel > MAX_CHANNEL24)
111 return -EINVAL;
112 dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel);
113
114 r = rf->set_channel(rf, channel);
115 if (r >= 0)
116 rf->channel = channel;
117 return r;
118}
119
120int zd_switch_radio_on(struct zd_rf *rf)
121{
122 int r, t;
123 struct zd_chip *chip = zd_rf_to_chip(rf);
124
125 ZD_ASSERT(mutex_is_locked(&chip->mutex));
126 r = zd_chip_lock_phy_regs(chip);
127 if (r)
128 return r;
129 t = rf->switch_radio_on(rf);
130 r = zd_chip_unlock_phy_regs(chip);
131 if (t)
132 r = t;
133 return r;
134}
135
136int zd_switch_radio_off(struct zd_rf *rf)
137{
138 int r, t;
139 struct zd_chip *chip = zd_rf_to_chip(rf);
140
141 /* TODO: move phy regs handling to zd_chip */
142 ZD_ASSERT(mutex_is_locked(&chip->mutex));
143 r = zd_chip_lock_phy_regs(chip);
144 if (r)
145 return r;
146 t = rf->switch_radio_off(rf);
147 r = zd_chip_unlock_phy_regs(chip);
148 if (t)
149 r = t;
150 return r;
151}
diff --git a/drivers/net/wireless/zd1211rw/zd_rf.h b/drivers/net/wireless/zd1211rw/zd_rf.h
new file mode 100644
index 000000000000..ea30f693fcc8
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_rf.h
@@ -0,0 +1,82 @@
1/* zd_rf.h
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#ifndef _ZD_RF_H
19#define _ZD_RF_H
20
21#include "zd_types.h"
22
23#define UW2451_RF 0x2
24#define UCHIP_RF 0x3
25#define AL2230_RF 0x4
26#define AL7230B_RF 0x5 /* a,b,g */
27#define THETA_RF 0x6
28#define AL2210_RF 0x7
29#define MAXIM_NEW_RF 0x8
30#define UW2453_RF 0x9
31#define AL2230S_RF 0xa
32#define RALINK_RF 0xb
33#define INTERSIL_RF 0xc
34#define RF2959_RF 0xd
35#define MAXIM_NEW2_RF 0xe
36#define PHILIPS_RF 0xf
37
38#define RF_CHANNEL(ch) [(ch)-1]
39
40/* Provides functions of the RF transceiver. */
41
42enum {
43 RF_REG_BITS = 6,
44 RF_VALUE_BITS = 18,
45 RF_RV_BITS = RF_REG_BITS + RF_VALUE_BITS,
46};
47
48struct zd_rf {
49 u8 type;
50
51 u8 channel;
52 /*
53 * Whether this RF should patch the 6M band edge
54 * (assuming E2P_POD agrees)
55 */
56 u8 patch_6m_band_edge:1;
57
58 /* RF-specific functions */
59 int (*init_hw)(struct zd_rf *rf);
60 int (*set_channel)(struct zd_rf *rf, u8 channel);
61 int (*switch_radio_on)(struct zd_rf *rf);
62 int (*switch_radio_off)(struct zd_rf *rf);
63};
64
65const char *zd_rf_name(u8 type);
66void zd_rf_init(struct zd_rf *rf);
67void zd_rf_clear(struct zd_rf *rf);
68int zd_rf_init_hw(struct zd_rf *rf, u8 type);
69
70int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size);
71
72int zd_rf_set_channel(struct zd_rf *rf, u8 channel);
73
74int zd_switch_radio_on(struct zd_rf *rf);
75int zd_switch_radio_off(struct zd_rf *rf);
76
77/* Functions for individual RF chips */
78
79int zd_rf_init_rf2959(struct zd_rf *rf);
80int zd_rf_init_al2230(struct zd_rf *rf);
81
82#endif /* _ZD_RF_H */
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}
diff --git a/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c b/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
new file mode 100644
index 000000000000..58247271cc24
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
@@ -0,0 +1,279 @@
1/* zd_rf_rfmd.c: Functions for the RFMD 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 u32 rf2959_table[][2] = {
25 RF_CHANNEL( 1) = { 0x181979, 0x1e6666 },
26 RF_CHANNEL( 2) = { 0x181989, 0x1e6666 },
27 RF_CHANNEL( 3) = { 0x181999, 0x1e6666 },
28 RF_CHANNEL( 4) = { 0x1819a9, 0x1e6666 },
29 RF_CHANNEL( 5) = { 0x1819b9, 0x1e6666 },
30 RF_CHANNEL( 6) = { 0x1819c9, 0x1e6666 },
31 RF_CHANNEL( 7) = { 0x1819d9, 0x1e6666 },
32 RF_CHANNEL( 8) = { 0x1819e9, 0x1e6666 },
33 RF_CHANNEL( 9) = { 0x1819f9, 0x1e6666 },
34 RF_CHANNEL(10) = { 0x181a09, 0x1e6666 },
35 RF_CHANNEL(11) = { 0x181a19, 0x1e6666 },
36 RF_CHANNEL(12) = { 0x181a29, 0x1e6666 },
37 RF_CHANNEL(13) = { 0x181a39, 0x1e6666 },
38 RF_CHANNEL(14) = { 0x181a60, 0x1c0000 },
39};
40
41#if 0
42static int bits(u32 rw, int from, int to)
43{
44 rw &= ~(0xffffffffU << (to+1));
45 rw >>= from;
46 return rw;
47}
48
49static int bit(u32 rw, int bit)
50{
51 return bits(rw, bit, bit);
52}
53
54static void dump_regwrite(u32 rw)
55{
56 int reg = bits(rw, 18, 22);
57 int rw_flag = bits(rw, 23, 23);
58 PDEBUG("rf2959 %#010x reg %d rw %d", rw, reg, rw_flag);
59
60 switch (reg) {
61 case 0:
62 PDEBUG("reg0 CFG1 ref_sel %d hybernate %d rf_vco_reg_en %d"
63 " if_vco_reg_en %d if_vga_en %d",
64 bits(rw, 14, 15), bit(rw, 3), bit(rw, 2), bit(rw, 1),
65 bit(rw, 0));
66 break;
67 case 1:
68 PDEBUG("reg1 IFPLL1 pll_en1 %d kv_en1 %d vtc_en1 %d lpf1 %d"
69 " cpl1 %d pdp1 %d autocal_en1 %d ld_en1 %d ifloopr %d"
70 " ifloopc %d dac1 %d",
71 bit(rw, 17), bit(rw, 16), bit(rw, 15), bit(rw, 14),
72 bit(rw, 13), bit(rw, 12), bit(rw, 11), bit(rw, 10),
73 bits(rw, 7, 9), bits(rw, 4, 6), bits(rw, 0, 3));
74 break;
75 case 2:
76 PDEBUG("reg2 IFPLL2 n1 %d num1 %d",
77 bits(rw, 6, 17), bits(rw, 0, 5));
78 break;
79 case 3:
80 PDEBUG("reg3 IFPLL3 num %d", bits(rw, 0, 17));
81 break;
82 case 4:
83 PDEBUG("reg4 IFPLL4 dn1 %#04x ct_def1 %d kv_def1 %d",
84 bits(rw, 8, 16), bits(rw, 4, 7), bits(rw, 0, 3));
85 break;
86 case 5:
87 PDEBUG("reg5 RFPLL1 pll_en %d kv_en %d vtc_en %d lpf %d cpl %d"
88 " pdp %d autocal_en %d ld_en %d rfloopr %d rfloopc %d"
89 " dac %d",
90 bit(rw, 17), bit(rw, 16), bit(rw, 15), bit(rw, 14),
91 bit(rw, 13), bit(rw, 12), bit(rw, 11), bit(rw, 10),
92 bits(rw, 7, 9), bits(rw, 4, 6), bits(rw, 0,3));
93 break;
94 case 6:
95 PDEBUG("reg6 RFPLL2 n %d num %d",
96 bits(rw, 6, 17), bits(rw, 0, 5));
97 break;
98 case 7:
99 PDEBUG("reg7 RFPLL3 num2 %d", bits(rw, 0, 17));
100 break;
101 case 8:
102 PDEBUG("reg8 RFPLL4 dn %#06x ct_def %d kv_def %d",
103 bits(rw, 8, 16), bits(rw, 4, 7), bits(rw, 0, 3));
104 break;
105 case 9:
106 PDEBUG("reg9 CAL1 tvco %d tlock %d m_ct_value %d ld_window %d",
107 bits(rw, 13, 17), bits(rw, 8, 12), bits(rw, 3, 7),
108 bits(rw, 0, 2));
109 break;
110 case 10:
111 PDEBUG("reg10 TXRX1 rxdcfbbyps %d pcontrol %d txvgc %d"
112 " rxlpfbw %d txlpfbw %d txdiffmode %d txenmode %d"
113 " intbiasen %d tybypass %d",
114 bit(rw, 17), bits(rw, 15, 16), bits(rw, 10, 14),
115 bits(rw, 7, 9), bits(rw, 4, 6), bit(rw, 3), bit(rw, 2),
116 bit(rw, 1), bit(rw, 0));
117 break;
118 case 11:
119 PDEBUG("reg11 PCNT1 mid_bias %d p_desired %d pc_offset %d"
120 " tx_delay %d",
121 bits(rw, 15, 17), bits(rw, 9, 14), bits(rw, 3, 8),
122 bits(rw, 0, 2));
123 break;
124 case 12:
125 PDEBUG("reg12 PCNT2 max_power %d mid_power %d min_power %d",
126 bits(rw, 12, 17), bits(rw, 6, 11), bits(rw, 0, 5));
127 break;
128 case 13:
129 PDEBUG("reg13 VCOT1 rfpll vco comp %d ifpll vco comp %d"
130 " lobias %d if_biasbuf %d if_biasvco %d rf_biasbuf %d"
131 " rf_biasvco %d",
132 bit(rw, 17), bit(rw, 16), bit(rw, 15),
133 bits(rw, 8, 9), bits(rw, 5, 7), bits(rw, 3, 4),
134 bits(rw, 0, 2));
135 break;
136 case 14:
137 PDEBUG("reg14 IQCAL rx_acal %d rx_pcal %d"
138 " tx_acal %d tx_pcal %d",
139 bits(rw, 13, 17), bits(rw, 9, 12), bits(rw, 4, 8),
140 bits(rw, 0, 3));
141 break;
142 }
143}
144#endif /* 0 */
145
146static int rf2959_init_hw(struct zd_rf *rf)
147{
148 int r;
149 struct zd_chip *chip = zd_rf_to_chip(rf);
150
151 static const struct zd_ioreq16 ioreqs[] = {
152 { CR2, 0x1E }, { CR9, 0x20 }, { CR10, 0x89 },
153 { CR11, 0x00 }, { CR15, 0xD0 }, { CR17, 0x68 },
154 { CR19, 0x4a }, { CR20, 0x0c }, { CR21, 0x0E },
155 { CR23, 0x48 },
156 /* normal size for cca threshold */
157 { CR24, 0x14 },
158 /* { CR24, 0x20 }, */
159 { CR26, 0x90 }, { CR27, 0x30 }, { CR29, 0x20 },
160 { CR31, 0xb2 }, { CR32, 0x43 }, { CR33, 0x28 },
161 { CR38, 0x30 }, { CR34, 0x0f }, { CR35, 0xF0 },
162 { CR41, 0x2a }, { CR46, 0x7F }, { CR47, 0x1E },
163 { CR51, 0xc5 }, { CR52, 0xc5 }, { CR53, 0xc5 },
164 { CR79, 0x58 }, { CR80, 0x30 }, { CR81, 0x30 },
165 { CR82, 0x00 }, { CR83, 0x24 }, { CR84, 0x04 },
166 { CR85, 0x00 }, { CR86, 0x10 }, { CR87, 0x2A },
167 { CR88, 0x10 }, { CR89, 0x24 }, { CR90, 0x18 },
168 /* { CR91, 0x18 }, */
169 /* should solve continous CTS frame problems */
170 { CR91, 0x00 },
171 { CR92, 0x0a }, { CR93, 0x00 }, { CR94, 0x01 },
172 { CR95, 0x00 }, { CR96, 0x40 }, { CR97, 0x37 },
173 { CR98, 0x05 }, { CR99, 0x28 }, { CR100, 0x00 },
174 { CR101, 0x13 }, { CR102, 0x27 }, { CR103, 0x27 },
175 { CR104, 0x18 }, { CR105, 0x12 },
176 /* normal size */
177 { CR106, 0x1a },
178 /* { CR106, 0x22 }, */
179 { CR107, 0x24 }, { CR108, 0x0a }, { CR109, 0x13 },
180 { CR110, 0x2F }, { CR111, 0x27 }, { CR112, 0x27 },
181 { CR113, 0x27 }, { CR114, 0x27 }, { CR115, 0x40 },
182 { CR116, 0x40 }, { CR117, 0xF0 }, { CR118, 0xF0 },
183 { CR119, 0x16 },
184 /* no TX continuation */
185 { CR122, 0x00 },
186 /* { CR122, 0xff }, */
187 { CR127, 0x03 }, { CR131, 0x08 }, { CR138, 0x28 },
188 { CR148, 0x44 }, { CR150, 0x10 }, { CR169, 0xBB },
189 { CR170, 0xBB },
190 };
191
192 static const u32 rv[] = {
193 0x000007, /* REG0(CFG1) */
194 0x07dd43, /* REG1(IFPLL1) */
195 0x080959, /* REG2(IFPLL2) */
196 0x0e6666,
197 0x116a57, /* REG4 */
198 0x17dd43, /* REG5 */
199 0x1819f9, /* REG6 */
200 0x1e6666,
201 0x214554,
202 0x25e7fa,
203 0x27fffa,
204 /* The Zydas driver somehow forgets to set this value. It's
205 * only set for Japan. We are using internal power control
206 * for now.
207 */
208 0x294128, /* internal power */
209 /* 0x28252c, */ /* External control TX power */
210 /* CR31_CCK, CR51_6-36M, CR52_48M, CR53_54M */
211 0x2c0000,
212 0x300000,
213 0x340000, /* REG13(0xD) */
214 0x381e0f, /* REG14(0xE) */
215 /* Bogus, RF2959's data sheet doesn't know register 27, which is
216 * actually referenced here. The commented 0x11 is 17.
217 */
218 0x6c180f, /* REG27(0x11) */
219 };
220
221 r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
222 if (r)
223 return r;
224
225 return zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
226}
227
228static int rf2959_set_channel(struct zd_rf *rf, u8 channel)
229{
230 int i, r;
231 u32 *rv = rf2959_table[channel-1];
232 struct zd_chip *chip = zd_rf_to_chip(rf);
233
234 for (i = 0; i < 2; i++) {
235 r = zd_rfwrite_locked(chip, rv[i], RF_RV_BITS);
236 if (r)
237 return r;
238 }
239 return 0;
240}
241
242static int rf2959_switch_radio_on(struct zd_rf *rf)
243{
244 static const struct zd_ioreq16 ioreqs[] = {
245 { CR10, 0x89 },
246 { CR11, 0x00 },
247 };
248 struct zd_chip *chip = zd_rf_to_chip(rf);
249
250 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
251}
252
253static int rf2959_switch_radio_off(struct zd_rf *rf)
254{
255 static const struct zd_ioreq16 ioreqs[] = {
256 { CR10, 0x15 },
257 { CR11, 0x81 },
258 };
259 struct zd_chip *chip = zd_rf_to_chip(rf);
260
261 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
262}
263
264int zd_rf_init_rf2959(struct zd_rf *rf)
265{
266 struct zd_chip *chip = zd_rf_to_chip(rf);
267
268 if (chip->is_zd1211b) {
269 dev_err(zd_chip_dev(chip),
270 "RF2959 is currently not supported for ZD1211B"
271 " devices\n");
272 return -ENODEV;
273 }
274 rf->init_hw = rf2959_init_hw;
275 rf->set_channel = rf2959_set_channel;
276 rf->switch_radio_on = rf2959_switch_radio_on;
277 rf->switch_radio_off = rf2959_switch_radio_off;
278 return 0;
279}
diff --git a/drivers/net/wireless/zd1211rw/zd_types.h b/drivers/net/wireless/zd1211rw/zd_types.h
new file mode 100644
index 000000000000..0155a1584ed3
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_types.h
@@ -0,0 +1,71 @@
1/* zd_types.h
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#ifndef _ZD_TYPES_H
19#define _ZD_TYPES_H
20
21#include <linux/types.h>
22
23/* We have three register spaces mapped into the overall USB address space of
24 * 64K words (16-bit values). There is the control register space of
25 * double-word registers, the eeprom register space and the firmware register
26 * space. The control register space is byte mapped, the others are word
27 * mapped.
28 *
29 * For that reason, we are using byte offsets for control registers and word
30 * offsets for everything else.
31 */
32
33typedef u32 __nocast zd_addr_t;
34
35enum {
36 ADDR_BASE_MASK = 0xff000000,
37 ADDR_OFFSET_MASK = 0x0000ffff,
38 ADDR_ZERO_MASK = 0x00ff0000,
39 NULL_BASE = 0x00000000,
40 USB_BASE = 0x01000000,
41 CR_BASE = 0x02000000,
42 CR_MAX_OFFSET = 0x0b30,
43 E2P_BASE = 0x03000000,
44 E2P_MAX_OFFSET = 0x007e,
45 FW_BASE = 0x04000000,
46 FW_MAX_OFFSET = 0x0005,
47};
48
49#define ZD_ADDR_BASE(addr) ((u32)(addr) & ADDR_BASE_MASK)
50#define ZD_OFFSET(addr) ((u32)(addr) & ADDR_OFFSET_MASK)
51
52#define ZD_ADDR(base, offset) \
53 ((zd_addr_t)(((base) & ADDR_BASE_MASK) | ((offset) & ADDR_OFFSET_MASK)))
54
55#define ZD_NULL_ADDR ((zd_addr_t)0)
56#define USB_REG(offset) ZD_ADDR(USB_BASE, offset) /* word addressing */
57#define CTL_REG(offset) ZD_ADDR(CR_BASE, offset) /* byte addressing */
58#define E2P_REG(offset) ZD_ADDR(E2P_BASE, offset) /* word addressing */
59#define FW_REG(offset) ZD_ADDR(FW_BASE, offset) /* word addressing */
60
61static inline zd_addr_t zd_inc_word(zd_addr_t addr)
62{
63 u32 base = ZD_ADDR_BASE(addr);
64 u32 offset = ZD_OFFSET(addr);
65
66 offset += base == CR_BASE ? 2 : 1;
67
68 return base | offset;
69}
70
71#endif /* _ZD_TYPES_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
new file mode 100644
index 000000000000..ce1cb2c6aa8d
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -0,0 +1,1316 @@
1/* zd_usb.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 <asm/unaligned.h>
19#include <linux/init.h>
20#include <linux/module.h>
21#include <linux/firmware.h>
22#include <linux/device.h>
23#include <linux/errno.h>
24#include <linux/skbuff.h>
25#include <linux/usb.h>
26#include <net/ieee80211.h>
27
28#include "zd_def.h"
29#include "zd_netdev.h"
30#include "zd_mac.h"
31#include "zd_usb.h"
32#include "zd_util.h"
33
34static struct usb_device_id usb_ids[] = {
35 /* ZD1211 */
36 { USB_DEVICE(0x0ace, 0x1211), .driver_info = DEVICE_ZD1211 },
37 { USB_DEVICE(0x07b8, 0x6001), .driver_info = DEVICE_ZD1211 },
38 { USB_DEVICE(0x126f, 0xa006), .driver_info = DEVICE_ZD1211 },
39 { USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 },
40 { USB_DEVICE(0x0df6, 0x9071), .driver_info = DEVICE_ZD1211 },
41 { USB_DEVICE(0x157e, 0x300b), .driver_info = DEVICE_ZD1211 },
42 /* ZD1211B */
43 { USB_DEVICE(0x0ace, 0x1215), .driver_info = DEVICE_ZD1211B },
44 { USB_DEVICE(0x157e, 0x300d), .driver_info = DEVICE_ZD1211B },
45 {}
46};
47
48MODULE_LICENSE("GPL");
49MODULE_DESCRIPTION("USB driver for devices with the ZD1211 chip.");
50MODULE_AUTHOR("Ulrich Kunitz");
51MODULE_AUTHOR("Daniel Drake");
52MODULE_VERSION("1.0");
53MODULE_DEVICE_TABLE(usb, usb_ids);
54
55#define FW_ZD1211_PREFIX "zd1211/zd1211_"
56#define FW_ZD1211B_PREFIX "zd1211/zd1211b_"
57
58/* register address handling */
59
60#ifdef DEBUG
61static int check_addr(struct zd_usb *usb, zd_addr_t addr)
62{
63 u32 base = ZD_ADDR_BASE(addr);
64 u32 offset = ZD_OFFSET(addr);
65
66 if ((u32)addr & ADDR_ZERO_MASK)
67 goto invalid_address;
68 switch (base) {
69 case USB_BASE:
70 break;
71 case CR_BASE:
72 if (offset > CR_MAX_OFFSET) {
73 dev_dbg(zd_usb_dev(usb),
74 "CR offset %#010x larger than"
75 " CR_MAX_OFFSET %#10x\n",
76 offset, CR_MAX_OFFSET);
77 goto invalid_address;
78 }
79 if (offset & 1) {
80 dev_dbg(zd_usb_dev(usb),
81 "CR offset %#010x is not a multiple of 2\n",
82 offset);
83 goto invalid_address;
84 }
85 break;
86 case E2P_BASE:
87 if (offset > E2P_MAX_OFFSET) {
88 dev_dbg(zd_usb_dev(usb),
89 "E2P offset %#010x larger than"
90 " E2P_MAX_OFFSET %#010x\n",
91 offset, E2P_MAX_OFFSET);
92 goto invalid_address;
93 }
94 break;
95 case FW_BASE:
96 if (!usb->fw_base_offset) {
97 dev_dbg(zd_usb_dev(usb),
98 "ERROR: fw base offset has not been set\n");
99 return -EAGAIN;
100 }
101 if (offset > FW_MAX_OFFSET) {
102 dev_dbg(zd_usb_dev(usb),
103 "FW offset %#10x is larger than"
104 " FW_MAX_OFFSET %#010x\n",
105 offset, FW_MAX_OFFSET);
106 goto invalid_address;
107 }
108 break;
109 default:
110 dev_dbg(zd_usb_dev(usb),
111 "address has unsupported base %#010x\n", addr);
112 goto invalid_address;
113 }
114
115 return 0;
116invalid_address:
117 dev_dbg(zd_usb_dev(usb),
118 "ERROR: invalid address: %#010x\n", addr);
119 return -EINVAL;
120}
121#endif /* DEBUG */
122
123static u16 usb_addr(struct zd_usb *usb, zd_addr_t addr)
124{
125 u32 base;
126 u16 offset;
127
128 base = ZD_ADDR_BASE(addr);
129 offset = ZD_OFFSET(addr);
130
131 ZD_ASSERT(check_addr(usb, addr) == 0);
132
133 switch (base) {
134 case CR_BASE:
135 offset += CR_BASE_OFFSET;
136 break;
137 case E2P_BASE:
138 offset += E2P_BASE_OFFSET;
139 break;
140 case FW_BASE:
141 offset += usb->fw_base_offset;
142 break;
143 }
144
145 return offset;
146}
147
148/* USB device initialization */
149
150static int request_fw_file(
151 const struct firmware **fw, const char *name, struct device *device)
152{
153 int r;
154
155 dev_dbg_f(device, "fw name %s\n", name);
156
157 r = request_firmware(fw, name, device);
158 if (r)
159 dev_err(device,
160 "Could not load firmware file %s. Error number %d\n",
161 name, r);
162 return r;
163}
164
165static inline u16 get_bcdDevice(const struct usb_device *udev)
166{
167 return le16_to_cpu(udev->descriptor.bcdDevice);
168}
169
170enum upload_code_flags {
171 REBOOT = 1,
172};
173
174/* Ensures that MAX_TRANSFER_SIZE is even. */
175#define MAX_TRANSFER_SIZE (USB_MAX_TRANSFER_SIZE & ~1)
176
177static int upload_code(struct usb_device *udev,
178 const u8 *data, size_t size, u16 code_offset, int flags)
179{
180 u8 *p;
181 int r;
182
183 /* USB request blocks need "kmalloced" buffers.
184 */
185 p = kmalloc(MAX_TRANSFER_SIZE, GFP_KERNEL);
186 if (!p) {
187 dev_err(&udev->dev, "out of memory\n");
188 r = -ENOMEM;
189 goto error;
190 }
191
192 size &= ~1;
193 while (size > 0) {
194 size_t transfer_size = size <= MAX_TRANSFER_SIZE ?
195 size : MAX_TRANSFER_SIZE;
196
197 dev_dbg_f(&udev->dev, "transfer size %zu\n", transfer_size);
198
199 memcpy(p, data, transfer_size);
200 r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
201 USB_REQ_FIRMWARE_DOWNLOAD,
202 USB_DIR_OUT | USB_TYPE_VENDOR,
203 code_offset, 0, p, transfer_size, 1000 /* ms */);
204 if (r < 0) {
205 dev_err(&udev->dev,
206 "USB control request for firmware upload"
207 " failed. Error number %d\n", r);
208 goto error;
209 }
210 transfer_size = r & ~1;
211
212 size -= transfer_size;
213 data += transfer_size;
214 code_offset += transfer_size/sizeof(u16);
215 }
216
217 if (flags & REBOOT) {
218 u8 ret;
219
220 r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
221 USB_REQ_FIRMWARE_CONFIRM,
222 USB_DIR_IN | USB_TYPE_VENDOR,
223 0, 0, &ret, sizeof(ret), 5000 /* ms */);
224 if (r != sizeof(ret)) {
225 dev_err(&udev->dev,
226 "control request firmeware confirmation failed."
227 " Return value %d\n", r);
228 if (r >= 0)
229 r = -ENODEV;
230 goto error;
231 }
232 if (ret & 0x80) {
233 dev_err(&udev->dev,
234 "Internal error while downloading."
235 " Firmware confirm return value %#04x\n",
236 (unsigned int)ret);
237 r = -ENODEV;
238 goto error;
239 }
240 dev_dbg_f(&udev->dev, "firmware confirm return value %#04x\n",
241 (unsigned int)ret);
242 }
243
244 r = 0;
245error:
246 kfree(p);
247 return r;
248}
249
250static u16 get_word(const void *data, u16 offset)
251{
252 const __le16 *p = data;
253 return le16_to_cpu(p[offset]);
254}
255
256static char *get_fw_name(char *buffer, size_t size, u8 device_type,
257 const char* postfix)
258{
259 scnprintf(buffer, size, "%s%s",
260 device_type == DEVICE_ZD1211B ?
261 FW_ZD1211B_PREFIX : FW_ZD1211_PREFIX,
262 postfix);
263 return buffer;
264}
265
266static int upload_firmware(struct usb_device *udev, u8 device_type)
267{
268 int r;
269 u16 fw_bcdDevice;
270 u16 bcdDevice;
271 const struct firmware *ub_fw = NULL;
272 const struct firmware *uph_fw = NULL;
273 char fw_name[128];
274
275 bcdDevice = get_bcdDevice(udev);
276
277 r = request_fw_file(&ub_fw,
278 get_fw_name(fw_name, sizeof(fw_name), device_type, "ub"),
279 &udev->dev);
280 if (r)
281 goto error;
282
283 fw_bcdDevice = get_word(ub_fw->data, EEPROM_REGS_OFFSET);
284
285 /* FIXME: do we have any reason to perform the kludge that the vendor
286 * driver does when there is a version mismatch? (their driver uploads
287 * different firmwares and stuff)
288 */
289 if (fw_bcdDevice != bcdDevice) {
290 dev_info(&udev->dev,
291 "firmware device id %#06x and actual device id "
292 "%#06x differ, continuing anyway\n",
293 fw_bcdDevice, bcdDevice);
294 } else {
295 dev_dbg_f(&udev->dev,
296 "firmware device id %#06x is equal to the "
297 "actual device id\n", fw_bcdDevice);
298 }
299
300
301 r = request_fw_file(&uph_fw,
302 get_fw_name(fw_name, sizeof(fw_name), device_type, "uphr"),
303 &udev->dev);
304 if (r)
305 goto error;
306
307 r = upload_code(udev, uph_fw->data, uph_fw->size, FW_START_OFFSET,
308 REBOOT);
309 if (r) {
310 dev_err(&udev->dev,
311 "Could not upload firmware code uph. Error number %d\n",
312 r);
313 }
314
315 /* FALL-THROUGH */
316error:
317 release_firmware(ub_fw);
318 release_firmware(uph_fw);
319 return r;
320}
321
322static void disable_read_regs_int(struct zd_usb *usb)
323{
324 struct zd_usb_interrupt *intr = &usb->intr;
325
326 ZD_ASSERT(in_interrupt());
327 spin_lock(&intr->lock);
328 intr->read_regs_enabled = 0;
329 spin_unlock(&intr->lock);
330}
331
332#define urb_dev(urb) (&(urb)->dev->dev)
333
334static inline void handle_regs_int(struct urb *urb)
335{
336 struct zd_usb *usb = urb->context;
337 struct zd_usb_interrupt *intr = &usb->intr;
338 int len;
339
340 ZD_ASSERT(in_interrupt());
341 spin_lock(&intr->lock);
342
343 if (intr->read_regs_enabled) {
344 intr->read_regs.length = len = urb->actual_length;
345
346 if (len > sizeof(intr->read_regs.buffer))
347 len = sizeof(intr->read_regs.buffer);
348 memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);
349 intr->read_regs_enabled = 0;
350 complete(&intr->read_regs.completion);
351 goto out;
352 }
353
354 dev_dbg_f(urb_dev(urb), "regs interrupt ignored\n");
355out:
356 spin_unlock(&intr->lock);
357}
358
359static inline void handle_retry_failed_int(struct urb *urb)
360{
361 dev_dbg_f(urb_dev(urb), "retry failed interrupt\n");
362}
363
364
365static void int_urb_complete(struct urb *urb, struct pt_regs *pt_regs)
366{
367 int r;
368 struct usb_int_header *hdr;
369
370 switch (urb->status) {
371 case 0:
372 break;
373 case -ESHUTDOWN:
374 case -EINVAL:
375 case -ENODEV:
376 case -ENOENT:
377 case -ECONNRESET:
378 goto kfree;
379 case -EPIPE:
380 usb_clear_halt(urb->dev, EP_INT_IN);
381 /* FALL-THROUGH */
382 default:
383 goto resubmit;
384 }
385
386 if (urb->actual_length < sizeof(hdr)) {
387 dev_dbg_f(urb_dev(urb), "error: urb %p to small\n", urb);
388 goto resubmit;
389 }
390
391 hdr = urb->transfer_buffer;
392 if (hdr->type != USB_INT_TYPE) {
393 dev_dbg_f(urb_dev(urb), "error: urb %p wrong type\n", urb);
394 goto resubmit;
395 }
396
397 switch (hdr->id) {
398 case USB_INT_ID_REGS:
399 handle_regs_int(urb);
400 break;
401 case USB_INT_ID_RETRY_FAILED:
402 handle_retry_failed_int(urb);
403 break;
404 default:
405 dev_dbg_f(urb_dev(urb), "error: urb %p unknown id %x\n", urb,
406 (unsigned int)hdr->id);
407 goto resubmit;
408 }
409
410resubmit:
411 r = usb_submit_urb(urb, GFP_ATOMIC);
412 if (r) {
413 dev_dbg_f(urb_dev(urb), "resubmit urb %p\n", urb);
414 goto kfree;
415 }
416 return;
417kfree:
418 kfree(urb->transfer_buffer);
419}
420
421static inline int int_urb_interval(struct usb_device *udev)
422{
423 switch (udev->speed) {
424 case USB_SPEED_HIGH:
425 return 4;
426 case USB_SPEED_LOW:
427 return 10;
428 case USB_SPEED_FULL:
429 default:
430 return 1;
431 }
432}
433
434static inline int usb_int_enabled(struct zd_usb *usb)
435{
436 unsigned long flags;
437 struct zd_usb_interrupt *intr = &usb->intr;
438 struct urb *urb;
439
440 spin_lock_irqsave(&intr->lock, flags);
441 urb = intr->urb;
442 spin_unlock_irqrestore(&intr->lock, flags);
443 return urb != NULL;
444}
445
446int zd_usb_enable_int(struct zd_usb *usb)
447{
448 int r;
449 struct usb_device *udev;
450 struct zd_usb_interrupt *intr = &usb->intr;
451 void *transfer_buffer = NULL;
452 struct urb *urb;
453
454 dev_dbg_f(zd_usb_dev(usb), "\n");
455
456 urb = usb_alloc_urb(0, GFP_NOFS);
457 if (!urb) {
458 r = -ENOMEM;
459 goto out;
460 }
461
462 ZD_ASSERT(!irqs_disabled());
463 spin_lock_irq(&intr->lock);
464 if (intr->urb) {
465 spin_unlock_irq(&intr->lock);
466 r = 0;
467 goto error_free_urb;
468 }
469 intr->urb = urb;
470 spin_unlock_irq(&intr->lock);
471
472 /* TODO: make it a DMA buffer */
473 r = -ENOMEM;
474 transfer_buffer = kmalloc(USB_MAX_EP_INT_BUFFER, GFP_NOFS);
475 if (!transfer_buffer) {
476 dev_dbg_f(zd_usb_dev(usb),
477 "couldn't allocate transfer_buffer\n");
478 goto error_set_urb_null;
479 }
480
481 udev = zd_usb_to_usbdev(usb);
482 usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, EP_INT_IN),
483 transfer_buffer, USB_MAX_EP_INT_BUFFER,
484 int_urb_complete, usb,
485 intr->interval);
486
487 dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);
488 r = usb_submit_urb(urb, GFP_NOFS);
489 if (r) {
490 dev_dbg_f(zd_usb_dev(usb),
491 "Couldn't submit urb. Error number %d\n", r);
492 goto error;
493 }
494
495 return 0;
496error:
497 kfree(transfer_buffer);
498error_set_urb_null:
499 spin_lock_irq(&intr->lock);
500 intr->urb = NULL;
501 spin_unlock_irq(&intr->lock);
502error_free_urb:
503 usb_free_urb(urb);
504out:
505 return r;
506}
507
508void zd_usb_disable_int(struct zd_usb *usb)
509{
510 unsigned long flags;
511 struct zd_usb_interrupt *intr = &usb->intr;
512 struct urb *urb;
513
514 spin_lock_irqsave(&intr->lock, flags);
515 urb = intr->urb;
516 if (!urb) {
517 spin_unlock_irqrestore(&intr->lock, flags);
518 return;
519 }
520 intr->urb = NULL;
521 spin_unlock_irqrestore(&intr->lock, flags);
522
523 usb_kill_urb(urb);
524 dev_dbg_f(zd_usb_dev(usb), "urb %p killed\n", urb);
525 usb_free_urb(urb);
526}
527
528static void handle_rx_packet(struct zd_usb *usb, const u8 *buffer,
529 unsigned int length)
530{
531 int i;
532 struct zd_mac *mac = zd_usb_to_mac(usb);
533 const struct rx_length_info *length_info;
534
535 if (length < sizeof(struct rx_length_info)) {
536 /* It's not a complete packet anyhow. */
537 return;
538 }
539 length_info = (struct rx_length_info *)
540 (buffer + length - sizeof(struct rx_length_info));
541
542 /* It might be that three frames are merged into a single URB
543 * transaction. We have to check for the length info tag.
544 *
545 * While testing we discovered that length_info might be unaligned,
546 * because if USB transactions are merged, the last packet will not
547 * be padded. Unaligned access might also happen if the length_info
548 * structure is not present.
549 */
550 if (get_unaligned(&length_info->tag) == RX_LENGTH_INFO_TAG) {
551 unsigned int l, k, n;
552 for (i = 0, l = 0;; i++) {
553 k = le16_to_cpu(get_unaligned(
554 &length_info->length[i]));
555 n = l+k;
556 if (n > length)
557 return;
558 zd_mac_rx(mac, buffer+l, k);
559 if (i >= 2)
560 return;
561 l = (n+3) & ~3;
562 }
563 } else {
564 zd_mac_rx(mac, buffer, length);
565 }
566}
567
568static void rx_urb_complete(struct urb *urb, struct pt_regs *pt_regs)
569{
570 struct zd_usb *usb;
571 struct zd_usb_rx *rx;
572 const u8 *buffer;
573 unsigned int length;
574
575 switch (urb->status) {
576 case 0:
577 break;
578 case -ESHUTDOWN:
579 case -EINVAL:
580 case -ENODEV:
581 case -ENOENT:
582 case -ECONNRESET:
583 return;
584 case -EPIPE:
585 usb_clear_halt(urb->dev, EP_DATA_IN);
586 /* FALL-THROUGH */
587 default:
588 dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
589 goto resubmit;
590 }
591
592 buffer = urb->transfer_buffer;
593 length = urb->actual_length;
594 usb = urb->context;
595 rx = &usb->rx;
596
597 if (length%rx->usb_packet_size > rx->usb_packet_size-4) {
598 /* If there is an old first fragment, we don't care. */
599 dev_dbg_f(urb_dev(urb), "*** first fragment ***\n");
600 ZD_ASSERT(length <= ARRAY_SIZE(rx->fragment));
601 spin_lock(&rx->lock);
602 memcpy(rx->fragment, buffer, length);
603 rx->fragment_length = length;
604 spin_unlock(&rx->lock);
605 goto resubmit;
606 }
607
608 spin_lock(&rx->lock);
609 if (rx->fragment_length > 0) {
610 /* We are on a second fragment, we believe */
611 ZD_ASSERT(length + rx->fragment_length <=
612 ARRAY_SIZE(rx->fragment));
613 dev_dbg_f(urb_dev(urb), "*** second fragment ***\n");
614 memcpy(rx->fragment+rx->fragment_length, buffer, length);
615 handle_rx_packet(usb, rx->fragment,
616 rx->fragment_length + length);
617 rx->fragment_length = 0;
618 spin_unlock(&rx->lock);
619 } else {
620 spin_unlock(&rx->lock);
621 handle_rx_packet(usb, buffer, length);
622 }
623
624resubmit:
625 usb_submit_urb(urb, GFP_ATOMIC);
626}
627
628struct urb *alloc_urb(struct zd_usb *usb)
629{
630 struct usb_device *udev = zd_usb_to_usbdev(usb);
631 struct urb *urb;
632 void *buffer;
633
634 urb = usb_alloc_urb(0, GFP_NOFS);
635 if (!urb)
636 return NULL;
637 buffer = usb_buffer_alloc(udev, USB_MAX_RX_SIZE, GFP_NOFS,
638 &urb->transfer_dma);
639 if (!buffer) {
640 usb_free_urb(urb);
641 return NULL;
642 }
643
644 usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, EP_DATA_IN),
645 buffer, USB_MAX_RX_SIZE,
646 rx_urb_complete, usb);
647 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
648
649 return urb;
650}
651
652void free_urb(struct urb *urb)
653{
654 if (!urb)
655 return;
656 usb_buffer_free(urb->dev, urb->transfer_buffer_length,
657 urb->transfer_buffer, urb->transfer_dma);
658 usb_free_urb(urb);
659}
660
661int zd_usb_enable_rx(struct zd_usb *usb)
662{
663 int i, r;
664 struct zd_usb_rx *rx = &usb->rx;
665 struct urb **urbs;
666
667 dev_dbg_f(zd_usb_dev(usb), "\n");
668
669 r = -ENOMEM;
670 urbs = kcalloc(URBS_COUNT, sizeof(struct urb *), GFP_NOFS);
671 if (!urbs)
672 goto error;
673 for (i = 0; i < URBS_COUNT; i++) {
674 urbs[i] = alloc_urb(usb);
675 if (!urbs[i])
676 goto error;
677 }
678
679 ZD_ASSERT(!irqs_disabled());
680 spin_lock_irq(&rx->lock);
681 if (rx->urbs) {
682 spin_unlock_irq(&rx->lock);
683 r = 0;
684 goto error;
685 }
686 rx->urbs = urbs;
687 rx->urbs_count = URBS_COUNT;
688 spin_unlock_irq(&rx->lock);
689
690 for (i = 0; i < URBS_COUNT; i++) {
691 r = usb_submit_urb(urbs[i], GFP_NOFS);
692 if (r)
693 goto error_submit;
694 }
695
696 return 0;
697error_submit:
698 for (i = 0; i < URBS_COUNT; i++) {
699 usb_kill_urb(urbs[i]);
700 }
701 spin_lock_irq(&rx->lock);
702 rx->urbs = NULL;
703 rx->urbs_count = 0;
704 spin_unlock_irq(&rx->lock);
705error:
706 if (urbs) {
707 for (i = 0; i < URBS_COUNT; i++)
708 free_urb(urbs[i]);
709 }
710 return r;
711}
712
713void zd_usb_disable_rx(struct zd_usb *usb)
714{
715 int i;
716 unsigned long flags;
717 struct urb **urbs;
718 unsigned int count;
719 struct zd_usb_rx *rx = &usb->rx;
720
721 spin_lock_irqsave(&rx->lock, flags);
722 urbs = rx->urbs;
723 count = rx->urbs_count;
724 spin_unlock_irqrestore(&rx->lock, flags);
725 if (!urbs)
726 return;
727
728 for (i = 0; i < count; i++) {
729 usb_kill_urb(urbs[i]);
730 free_urb(urbs[i]);
731 }
732 kfree(urbs);
733
734 spin_lock_irqsave(&rx->lock, flags);
735 rx->urbs = NULL;
736 rx->urbs_count = 0;
737 spin_unlock_irqrestore(&rx->lock, flags);
738}
739
740static void tx_urb_complete(struct urb *urb, struct pt_regs *pt_regs)
741{
742 int r;
743
744 switch (urb->status) {
745 case 0:
746 break;
747 case -ESHUTDOWN:
748 case -EINVAL:
749 case -ENODEV:
750 case -ENOENT:
751 case -ECONNRESET:
752 dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
753 break;
754 case -EPIPE:
755 usb_clear_halt(urb->dev, EP_DATA_OUT);
756 /* FALL-THROUGH */
757 default:
758 dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
759 goto resubmit;
760 }
761free_urb:
762 usb_buffer_free(urb->dev, urb->transfer_buffer_length,
763 urb->transfer_buffer, urb->transfer_dma);
764 usb_free_urb(urb);
765 return;
766resubmit:
767 r = usb_submit_urb(urb, GFP_ATOMIC);
768 if (r) {
769 dev_dbg_f(urb_dev(urb), "error resubmit urb %p %d\n", urb, r);
770 goto free_urb;
771 }
772}
773
774/* Puts the frame on the USB endpoint. It doesn't wait for
775 * completion. The frame must contain the control set.
776 */
777int zd_usb_tx(struct zd_usb *usb, const u8 *frame, unsigned int length)
778{
779 int r;
780 struct usb_device *udev = zd_usb_to_usbdev(usb);
781 struct urb *urb;
782 void *buffer;
783
784 urb = usb_alloc_urb(0, GFP_ATOMIC);
785 if (!urb) {
786 r = -ENOMEM;
787 goto out;
788 }
789
790 buffer = usb_buffer_alloc(zd_usb_to_usbdev(usb), length, GFP_ATOMIC,
791 &urb->transfer_dma);
792 if (!buffer) {
793 r = -ENOMEM;
794 goto error_free_urb;
795 }
796 memcpy(buffer, frame, length);
797
798 usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, EP_DATA_OUT),
799 buffer, length, tx_urb_complete, NULL);
800 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
801
802 r = usb_submit_urb(urb, GFP_ATOMIC);
803 if (r)
804 goto error;
805 return 0;
806error:
807 usb_buffer_free(zd_usb_to_usbdev(usb), length, buffer,
808 urb->transfer_dma);
809error_free_urb:
810 usb_free_urb(urb);
811out:
812 return r;
813}
814
815static inline void init_usb_interrupt(struct zd_usb *usb)
816{
817 struct zd_usb_interrupt *intr = &usb->intr;
818
819 spin_lock_init(&intr->lock);
820 intr->interval = int_urb_interval(zd_usb_to_usbdev(usb));
821 init_completion(&intr->read_regs.completion);
822 intr->read_regs.cr_int_addr = cpu_to_le16(usb_addr(usb, CR_INTERRUPT));
823}
824
825static inline void init_usb_rx(struct zd_usb *usb)
826{
827 struct zd_usb_rx *rx = &usb->rx;
828 spin_lock_init(&rx->lock);
829 if (interface_to_usbdev(usb->intf)->speed == USB_SPEED_HIGH) {
830 rx->usb_packet_size = 512;
831 } else {
832 rx->usb_packet_size = 64;
833 }
834 ZD_ASSERT(rx->fragment_length == 0);
835}
836
837static inline void init_usb_tx(struct zd_usb *usb)
838{
839 /* FIXME: at this point we will allocate a fixed number of urb's for
840 * use in a cyclic scheme */
841}
842
843void zd_usb_init(struct zd_usb *usb, struct net_device *netdev,
844 struct usb_interface *intf)
845{
846 memset(usb, 0, sizeof(*usb));
847 usb->intf = usb_get_intf(intf);
848 usb_set_intfdata(usb->intf, netdev);
849 init_usb_interrupt(usb);
850 init_usb_tx(usb);
851 init_usb_rx(usb);
852}
853
854int zd_usb_init_hw(struct zd_usb *usb)
855{
856 int r;
857 struct zd_chip *chip = zd_usb_to_chip(usb);
858
859 ZD_ASSERT(mutex_is_locked(&chip->mutex));
860 r = zd_ioread16_locked(chip, &usb->fw_base_offset,
861 USB_REG((u16)FW_BASE_ADDR_OFFSET));
862 if (r)
863 return r;
864 dev_dbg_f(zd_usb_dev(usb), "fw_base_offset: %#06hx\n",
865 usb->fw_base_offset);
866
867 return 0;
868}
869
870void zd_usb_clear(struct zd_usb *usb)
871{
872 usb_set_intfdata(usb->intf, NULL);
873 usb_put_intf(usb->intf);
874 memset(usb, 0, sizeof(*usb));
875 /* FIXME: usb_interrupt, usb_tx, usb_rx? */
876}
877
878static const char *speed(enum usb_device_speed speed)
879{
880 switch (speed) {
881 case USB_SPEED_LOW:
882 return "low";
883 case USB_SPEED_FULL:
884 return "full";
885 case USB_SPEED_HIGH:
886 return "high";
887 default:
888 return "unknown speed";
889 }
890}
891
892static int scnprint_id(struct usb_device *udev, char *buffer, size_t size)
893{
894 return scnprintf(buffer, size, "%04hx:%04hx v%04hx %s",
895 le16_to_cpu(udev->descriptor.idVendor),
896 le16_to_cpu(udev->descriptor.idProduct),
897 get_bcdDevice(udev),
898 speed(udev->speed));
899}
900
901int zd_usb_scnprint_id(struct zd_usb *usb, char *buffer, size_t size)
902{
903 struct usb_device *udev = interface_to_usbdev(usb->intf);
904 return scnprint_id(udev, buffer, size);
905}
906
907#ifdef DEBUG
908static void print_id(struct usb_device *udev)
909{
910 char buffer[40];
911
912 scnprint_id(udev, buffer, sizeof(buffer));
913 buffer[sizeof(buffer)-1] = 0;
914 dev_dbg_f(&udev->dev, "%s\n", buffer);
915}
916#else
917#define print_id(udev) do { } while (0)
918#endif
919
920static int probe(struct usb_interface *intf, const struct usb_device_id *id)
921{
922 int r;
923 struct usb_device *udev = interface_to_usbdev(intf);
924 struct net_device *netdev = NULL;
925
926 print_id(udev);
927
928 switch (udev->speed) {
929 case USB_SPEED_LOW:
930 case USB_SPEED_FULL:
931 case USB_SPEED_HIGH:
932 break;
933 default:
934 dev_dbg_f(&intf->dev, "Unknown USB speed\n");
935 r = -ENODEV;
936 goto error;
937 }
938
939 netdev = zd_netdev_alloc(intf);
940 if (netdev == NULL) {
941 r = -ENOMEM;
942 goto error;
943 }
944
945 r = upload_firmware(udev, id->driver_info);
946 if (r) {
947 dev_err(&intf->dev,
948 "couldn't load firmware. Error number %d\n", r);
949 goto error;
950 }
951
952 r = usb_reset_configuration(udev);
953 if (r) {
954 dev_dbg_f(&intf->dev,
955 "couldn't reset configuration. Error number %d\n", r);
956 goto error;
957 }
958
959 /* At this point the interrupt endpoint is not generally enabled. We
960 * save the USB bandwidth until the network device is opened. But
961 * notify that the initialization of the MAC will require the
962 * interrupts to be temporary enabled.
963 */
964 r = zd_mac_init_hw(zd_netdev_mac(netdev), id->driver_info);
965 if (r) {
966 dev_dbg_f(&intf->dev,
967 "couldn't initialize mac. Error number %d\n", r);
968 goto error;
969 }
970
971 r = register_netdev(netdev);
972 if (r) {
973 dev_dbg_f(&intf->dev,
974 "couldn't register netdev. Error number %d\n", r);
975 goto error;
976 }
977
978 dev_dbg_f(&intf->dev, "successful\n");
979 dev_info(&intf->dev,"%s\n", netdev->name);
980 return 0;
981error:
982 usb_reset_device(interface_to_usbdev(intf));
983 zd_netdev_free(netdev);
984 return r;
985}
986
987static void disconnect(struct usb_interface *intf)
988{
989 struct net_device *netdev = zd_intf_to_netdev(intf);
990 struct zd_mac *mac = zd_netdev_mac(netdev);
991 struct zd_usb *usb = &mac->chip.usb;
992
993 dev_dbg_f(zd_usb_dev(usb), "\n");
994
995 zd_netdev_disconnect(netdev);
996
997 /* Just in case something has gone wrong! */
998 zd_usb_disable_rx(usb);
999 zd_usb_disable_int(usb);
1000
1001 /* If the disconnect has been caused by a removal of the
1002 * driver module, the reset allows reloading of the driver. If the
1003 * reset will not be executed here, the upload of the firmware in the
1004 * probe function caused by the reloading of the driver will fail.
1005 */
1006 usb_reset_device(interface_to_usbdev(intf));
1007
1008 /* If somebody still waits on this lock now, this is an error. */
1009 zd_netdev_free(netdev);
1010 dev_dbg(&intf->dev, "disconnected\n");
1011}
1012
1013static struct usb_driver driver = {
1014 .name = "zd1211rw",
1015 .id_table = usb_ids,
1016 .probe = probe,
1017 .disconnect = disconnect,
1018};
1019
1020static int __init usb_init(void)
1021{
1022 int r;
1023
1024 pr_debug("usb_init()\n");
1025
1026 r = usb_register(&driver);
1027 if (r) {
1028 printk(KERN_ERR "usb_register() failed. Error number %d\n", r);
1029 return r;
1030 }
1031
1032 pr_debug("zd1211rw initialized\n");
1033 return 0;
1034}
1035
1036static void __exit usb_exit(void)
1037{
1038 pr_debug("usb_exit()\n");
1039 usb_deregister(&driver);
1040}
1041
1042module_init(usb_init);
1043module_exit(usb_exit);
1044
1045static int usb_int_regs_length(unsigned int count)
1046{
1047 return sizeof(struct usb_int_regs) + count * sizeof(struct reg_data);
1048}
1049
1050static void prepare_read_regs_int(struct zd_usb *usb)
1051{
1052 struct zd_usb_interrupt *intr = &usb->intr;
1053
1054 spin_lock(&intr->lock);
1055 intr->read_regs_enabled = 1;
1056 INIT_COMPLETION(intr->read_regs.completion);
1057 spin_unlock(&intr->lock);
1058}
1059
1060static int get_results(struct zd_usb *usb, u16 *values,
1061 struct usb_req_read_regs *req, unsigned int count)
1062{
1063 int r;
1064 int i;
1065 struct zd_usb_interrupt *intr = &usb->intr;
1066 struct read_regs_int *rr = &intr->read_regs;
1067 struct usb_int_regs *regs = (struct usb_int_regs *)rr->buffer;
1068
1069 spin_lock(&intr->lock);
1070
1071 r = -EIO;
1072 /* The created block size seems to be larger than expected.
1073 * However results appear to be correct.
1074 */
1075 if (rr->length < usb_int_regs_length(count)) {
1076 dev_dbg_f(zd_usb_dev(usb),
1077 "error: actual length %d less than expected %d\n",
1078 rr->length, usb_int_regs_length(count));
1079 goto error_unlock;
1080 }
1081 if (rr->length > sizeof(rr->buffer)) {
1082 dev_dbg_f(zd_usb_dev(usb),
1083 "error: actual length %d exceeds buffer size %zu\n",
1084 rr->length, sizeof(rr->buffer));
1085 goto error_unlock;
1086 }
1087
1088 for (i = 0; i < count; i++) {
1089 struct reg_data *rd = &regs->regs[i];
1090 if (rd->addr != req->addr[i]) {
1091 dev_dbg_f(zd_usb_dev(usb),
1092 "rd[%d] addr %#06hx expected %#06hx\n", i,
1093 le16_to_cpu(rd->addr),
1094 le16_to_cpu(req->addr[i]));
1095 goto error_unlock;
1096 }
1097 values[i] = le16_to_cpu(rd->value);
1098 }
1099
1100 r = 0;
1101error_unlock:
1102 spin_unlock(&intr->lock);
1103 return r;
1104}
1105
1106int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
1107 const zd_addr_t *addresses, unsigned int count)
1108{
1109 int r;
1110 int i, req_len, actual_req_len;
1111 struct usb_device *udev;
1112 struct usb_req_read_regs *req = NULL;
1113 unsigned long timeout;
1114
1115 if (count < 1) {
1116 dev_dbg_f(zd_usb_dev(usb), "error: count is zero\n");
1117 return -EINVAL;
1118 }
1119 if (count > USB_MAX_IOREAD16_COUNT) {
1120 dev_dbg_f(zd_usb_dev(usb),
1121 "error: count %u exceeds possible max %u\n",
1122 count, USB_MAX_IOREAD16_COUNT);
1123 return -EINVAL;
1124 }
1125 if (in_atomic()) {
1126 dev_dbg_f(zd_usb_dev(usb),
1127 "error: io in atomic context not supported\n");
1128 return -EWOULDBLOCK;
1129 }
1130 if (!usb_int_enabled(usb)) {
1131 dev_dbg_f(zd_usb_dev(usb),
1132 "error: usb interrupt not enabled\n");
1133 return -EWOULDBLOCK;
1134 }
1135
1136 req_len = sizeof(struct usb_req_read_regs) + count * sizeof(__le16);
1137 req = kmalloc(req_len, GFP_NOFS);
1138 if (!req)
1139 return -ENOMEM;
1140 req->id = cpu_to_le16(USB_REQ_READ_REGS);
1141 for (i = 0; i < count; i++)
1142 req->addr[i] = cpu_to_le16(usb_addr(usb, addresses[i]));
1143
1144 udev = zd_usb_to_usbdev(usb);
1145 prepare_read_regs_int(usb);
1146 r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
1147 req, req_len, &actual_req_len, 1000 /* ms */);
1148 if (r) {
1149 dev_dbg_f(zd_usb_dev(usb),
1150 "error in usb_bulk_msg(). Error number %d\n", r);
1151 goto error;
1152 }
1153 if (req_len != actual_req_len) {
1154 dev_dbg_f(zd_usb_dev(usb), "error in usb_bulk_msg()\n"
1155 " req_len %d != actual_req_len %d\n",
1156 req_len, actual_req_len);
1157 r = -EIO;
1158 goto error;
1159 }
1160
1161 timeout = wait_for_completion_timeout(&usb->intr.read_regs.completion,
1162 msecs_to_jiffies(1000));
1163 if (!timeout) {
1164 disable_read_regs_int(usb);
1165 dev_dbg_f(zd_usb_dev(usb), "read timed out\n");
1166 r = -ETIMEDOUT;
1167 goto error;
1168 }
1169
1170 r = get_results(usb, values, req, count);
1171error:
1172 kfree(req);
1173 return r;
1174}
1175
1176int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
1177 unsigned int count)
1178{
1179 int r;
1180 struct usb_device *udev;
1181 struct usb_req_write_regs *req = NULL;
1182 int i, req_len, actual_req_len;
1183
1184 if (count == 0)
1185 return 0;
1186 if (count > USB_MAX_IOWRITE16_COUNT) {
1187 dev_dbg_f(zd_usb_dev(usb),
1188 "error: count %u exceeds possible max %u\n",
1189 count, USB_MAX_IOWRITE16_COUNT);
1190 return -EINVAL;
1191 }
1192 if (in_atomic()) {
1193 dev_dbg_f(zd_usb_dev(usb),
1194 "error: io in atomic context not supported\n");
1195 return -EWOULDBLOCK;
1196 }
1197
1198 req_len = sizeof(struct usb_req_write_regs) +
1199 count * sizeof(struct reg_data);
1200 req = kmalloc(req_len, GFP_NOFS);
1201 if (!req)
1202 return -ENOMEM;
1203
1204 req->id = cpu_to_le16(USB_REQ_WRITE_REGS);
1205 for (i = 0; i < count; i++) {
1206 struct reg_data *rw = &req->reg_writes[i];
1207 rw->addr = cpu_to_le16(usb_addr(usb, ioreqs[i].addr));
1208 rw->value = cpu_to_le16(ioreqs[i].value);
1209 }
1210
1211 udev = zd_usb_to_usbdev(usb);
1212 r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
1213 req, req_len, &actual_req_len, 1000 /* ms */);
1214 if (r) {
1215 dev_dbg_f(zd_usb_dev(usb),
1216 "error in usb_bulk_msg(). Error number %d\n", r);
1217 goto error;
1218 }
1219 if (req_len != actual_req_len) {
1220 dev_dbg_f(zd_usb_dev(usb),
1221 "error in usb_bulk_msg()"
1222 " req_len %d != actual_req_len %d\n",
1223 req_len, actual_req_len);
1224 r = -EIO;
1225 goto error;
1226 }
1227
1228 /* FALL-THROUGH with r == 0 */
1229error:
1230 kfree(req);
1231 return r;
1232}
1233
1234int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits)
1235{
1236 int r;
1237 struct usb_device *udev;
1238 struct usb_req_rfwrite *req = NULL;
1239 int i, req_len, actual_req_len;
1240 u16 bit_value_template;
1241
1242 if (in_atomic()) {
1243 dev_dbg_f(zd_usb_dev(usb),
1244 "error: io in atomic context not supported\n");
1245 return -EWOULDBLOCK;
1246 }
1247 if (bits < USB_MIN_RFWRITE_BIT_COUNT) {
1248 dev_dbg_f(zd_usb_dev(usb),
1249 "error: bits %d are smaller than"
1250 " USB_MIN_RFWRITE_BIT_COUNT %d\n",
1251 bits, USB_MIN_RFWRITE_BIT_COUNT);
1252 return -EINVAL;
1253 }
1254 if (bits > USB_MAX_RFWRITE_BIT_COUNT) {
1255 dev_dbg_f(zd_usb_dev(usb),
1256 "error: bits %d exceed USB_MAX_RFWRITE_BIT_COUNT %d\n",
1257 bits, USB_MAX_RFWRITE_BIT_COUNT);
1258 return -EINVAL;
1259 }
1260#ifdef DEBUG
1261 if (value & (~0UL << bits)) {
1262 dev_dbg_f(zd_usb_dev(usb),
1263 "error: value %#09x has bits >= %d set\n",
1264 value, bits);
1265 return -EINVAL;
1266 }
1267#endif /* DEBUG */
1268
1269 dev_dbg_f(zd_usb_dev(usb), "value %#09x bits %d\n", value, bits);
1270
1271 r = zd_usb_ioread16(usb, &bit_value_template, CR203);
1272 if (r) {
1273 dev_dbg_f(zd_usb_dev(usb),
1274 "error %d: Couldn't read CR203\n", r);
1275 goto out;
1276 }
1277 bit_value_template &= ~(RF_IF_LE|RF_CLK|RF_DATA);
1278
1279 req_len = sizeof(struct usb_req_rfwrite) + bits * sizeof(__le16);
1280 req = kmalloc(req_len, GFP_NOFS);
1281 if (!req)
1282 return -ENOMEM;
1283
1284 req->id = cpu_to_le16(USB_REQ_WRITE_RF);
1285 /* 1: 3683a, but not used in ZYDAS driver */
1286 req->value = cpu_to_le16(2);
1287 req->bits = cpu_to_le16(bits);
1288
1289 for (i = 0; i < bits; i++) {
1290 u16 bv = bit_value_template;
1291 if (value & (1 << (bits-1-i)))
1292 bv |= RF_DATA;
1293 req->bit_values[i] = cpu_to_le16(bv);
1294 }
1295
1296 udev = zd_usb_to_usbdev(usb);
1297 r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
1298 req, req_len, &actual_req_len, 1000 /* ms */);
1299 if (r) {
1300 dev_dbg_f(zd_usb_dev(usb),
1301 "error in usb_bulk_msg(). Error number %d\n", r);
1302 goto out;
1303 }
1304 if (req_len != actual_req_len) {
1305 dev_dbg_f(zd_usb_dev(usb), "error in usb_bulk_msg()"
1306 " req_len %d != actual_req_len %d\n",
1307 req_len, actual_req_len);
1308 r = -EIO;
1309 goto out;
1310 }
1311
1312 /* FALL-THROUGH with r == 0 */
1313out:
1314 kfree(req);
1315 return r;
1316}
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.h b/drivers/net/wireless/zd1211rw/zd_usb.h
new file mode 100644
index 000000000000..d6420283bd5a
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_usb.h
@@ -0,0 +1,240 @@
1/* zd_usb.h: Header for USB interface implemented by ZD1211 chip
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#ifndef _ZD_USB_H
19#define _ZD_USB_H
20
21#include <linux/completion.h>
22#include <linux/netdevice.h>
23#include <linux/spinlock.h>
24#include <linux/skbuff.h>
25#include <linux/usb.h>
26
27#include "zd_def.h"
28#include "zd_types.h"
29
30enum devicetype {
31 DEVICE_ZD1211 = 0,
32 DEVICE_ZD1211B = 1,
33};
34
35enum endpoints {
36 EP_CTRL = 0,
37 EP_DATA_OUT = 1,
38 EP_DATA_IN = 2,
39 EP_INT_IN = 3,
40 EP_REGS_OUT = 4,
41};
42
43enum {
44 USB_MAX_TRANSFER_SIZE = 4096, /* bytes */
45 /* FIXME: The original driver uses this value. We have to check,
46 * whether the MAX_TRANSFER_SIZE is sufficient and this needs only be
47 * used if one combined frame is split over two USB transactions.
48 */
49 USB_MAX_RX_SIZE = 4800, /* bytes */
50 USB_MAX_IOWRITE16_COUNT = 15,
51 USB_MAX_IOWRITE32_COUNT = USB_MAX_IOWRITE16_COUNT/2,
52 USB_MAX_IOREAD16_COUNT = 15,
53 USB_MAX_IOREAD32_COUNT = USB_MAX_IOREAD16_COUNT/2,
54 USB_MIN_RFWRITE_BIT_COUNT = 16,
55 USB_MAX_RFWRITE_BIT_COUNT = 28,
56 USB_MAX_EP_INT_BUFFER = 64,
57 USB_ZD1211B_BCD_DEVICE = 0x4810,
58};
59
60enum control_requests {
61 USB_REQ_WRITE_REGS = 0x21,
62 USB_REQ_READ_REGS = 0x22,
63 USB_REQ_WRITE_RF = 0x23,
64 USB_REQ_PROG_FLASH = 0x24,
65 USB_REQ_EEPROM_START = 0x0128, /* ? request is a byte */
66 USB_REQ_EEPROM_MID = 0x28,
67 USB_REQ_EEPROM_END = 0x0228, /* ? request is a byte */
68 USB_REQ_FIRMWARE_DOWNLOAD = 0x30,
69 USB_REQ_FIRMWARE_CONFIRM = 0x31,
70 USB_REQ_FIRMWARE_READ_DATA = 0x32,
71};
72
73struct usb_req_read_regs {
74 __le16 id;
75 __le16 addr[0];
76} __attribute__((packed));
77
78struct reg_data {
79 __le16 addr;
80 __le16 value;
81} __attribute__((packed));
82
83struct usb_req_write_regs {
84 __le16 id;
85 struct reg_data reg_writes[0];
86} __attribute__((packed));
87
88enum {
89 RF_IF_LE = 0x02,
90 RF_CLK = 0x04,
91 RF_DATA = 0x08,
92};
93
94struct usb_req_rfwrite {
95 __le16 id;
96 __le16 value;
97 /* 1: 3683a */
98 /* 2: other (default) */
99 __le16 bits;
100 /* RF2595: 24 */
101 __le16 bit_values[0];
102 /* (CR203 & ~(RF_IF_LE | RF_CLK | RF_DATA)) | (bit ? RF_DATA : 0) */
103} __attribute__((packed));
104
105/* USB interrupt */
106
107enum usb_int_id {
108 USB_INT_TYPE = 0x01,
109 USB_INT_ID_REGS = 0x90,
110 USB_INT_ID_RETRY_FAILED = 0xa0,
111};
112
113enum usb_int_flags {
114 USB_INT_READ_REGS_EN = 0x01,
115};
116
117struct usb_int_header {
118 u8 type; /* must always be 1 */
119 u8 id;
120} __attribute__((packed));
121
122struct usb_int_regs {
123 struct usb_int_header hdr;
124 struct reg_data regs[0];
125} __attribute__((packed));
126
127struct usb_int_retry_fail {
128 struct usb_int_header hdr;
129 u8 new_rate;
130 u8 _dummy;
131 u8 addr[ETH_ALEN];
132 u8 ibss_wakeup_dest;
133} __attribute__((packed));
134
135struct read_regs_int {
136 struct completion completion;
137 /* Stores the USB int structure and contains the USB address of the
138 * first requested register before request.
139 */
140 u8 buffer[USB_MAX_EP_INT_BUFFER];
141 int length;
142 __le16 cr_int_addr;
143};
144
145struct zd_ioreq16 {
146 zd_addr_t addr;
147 u16 value;
148};
149
150struct zd_ioreq32 {
151 zd_addr_t addr;
152 u32 value;
153};
154
155struct zd_usb_interrupt {
156 struct read_regs_int read_regs;
157 spinlock_t lock;
158 struct urb *urb;
159 int interval;
160 u8 read_regs_enabled:1;
161};
162
163static inline struct usb_int_regs *get_read_regs(struct zd_usb_interrupt *intr)
164{
165 return (struct usb_int_regs *)intr->read_regs.buffer;
166}
167
168#define URBS_COUNT 5
169
170struct zd_usb_rx {
171 spinlock_t lock;
172 u8 fragment[2*USB_MAX_RX_SIZE];
173 unsigned int fragment_length;
174 unsigned int usb_packet_size;
175 struct urb **urbs;
176 int urbs_count;
177};
178
179struct zd_usb_tx {
180 spinlock_t lock;
181};
182
183/* Contains the usb parts. The structure doesn't require a lock, because intf
184 * and fw_base_offset, will not be changed after initialization.
185 */
186struct zd_usb {
187 struct zd_usb_interrupt intr;
188 struct zd_usb_rx rx;
189 struct zd_usb_tx tx;
190 struct usb_interface *intf;
191 u16 fw_base_offset;
192};
193
194#define zd_usb_dev(usb) (&usb->intf->dev)
195
196static inline struct usb_device *zd_usb_to_usbdev(struct zd_usb *usb)
197{
198 return interface_to_usbdev(usb->intf);
199}
200
201static inline struct net_device *zd_intf_to_netdev(struct usb_interface *intf)
202{
203 return usb_get_intfdata(intf);
204}
205
206static inline struct net_device *zd_usb_to_netdev(struct zd_usb *usb)
207{
208 return zd_intf_to_netdev(usb->intf);
209}
210
211void zd_usb_init(struct zd_usb *usb, struct net_device *netdev,
212 struct usb_interface *intf);
213int zd_usb_init_hw(struct zd_usb *usb);
214void zd_usb_clear(struct zd_usb *usb);
215
216int zd_usb_scnprint_id(struct zd_usb *usb, char *buffer, size_t size);
217
218int zd_usb_enable_int(struct zd_usb *usb);
219void zd_usb_disable_int(struct zd_usb *usb);
220
221int zd_usb_enable_rx(struct zd_usb *usb);
222void zd_usb_disable_rx(struct zd_usb *usb);
223
224int zd_usb_tx(struct zd_usb *usb, const u8 *frame, unsigned int length);
225
226int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
227 const zd_addr_t *addresses, unsigned int count);
228
229static inline int zd_usb_ioread16(struct zd_usb *usb, u16 *value,
230 const zd_addr_t addr)
231{
232 return zd_usb_ioread16v(usb, value, (const zd_addr_t *)&addr, 1);
233}
234
235int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
236 unsigned int count);
237
238int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits);
239
240#endif /* _ZD_USB_H */
diff --git a/drivers/net/wireless/zd1211rw/zd_util.c b/drivers/net/wireless/zd1211rw/zd_util.c
new file mode 100644
index 000000000000..d20036c15d11
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_util.c
@@ -0,0 +1,82 @@
1/* zd_util.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 * Utility program
18 */
19
20#include "zd_def.h"
21#include "zd_util.h"
22
23#ifdef DEBUG
24static char hex(u8 v)
25{
26 v &= 0xf;
27 return (v < 10 ? '0' : 'a' - 10) + v;
28}
29
30static char hex_print(u8 c)
31{
32 return (0x20 <= c && c < 0x7f) ? c : '.';
33}
34
35static void dump_line(const u8 *bytes, size_t size)
36{
37 char c;
38 size_t i;
39
40 size = size <= 8 ? size : 8;
41 printk(KERN_DEBUG "zd1211 %p ", bytes);
42 for (i = 0; i < 8; i++) {
43 switch (i) {
44 case 1:
45 case 5:
46 c = '.';
47 break;
48 case 3:
49 c = ':';
50 break;
51 default:
52 c = ' ';
53 }
54 if (i < size) {
55 printk("%c%c%c", hex(bytes[i] >> 4), hex(bytes[i]), c);
56 } else {
57 printk(" %c", c);
58 }
59 }
60
61 for (i = 0; i < size; i++)
62 printk("%c", hex_print(bytes[i]));
63 printk("\n");
64}
65
66void zd_hexdump(const void *bytes, size_t size)
67{
68 size_t i = 0;
69
70 do {
71 dump_line((u8 *)bytes + i, size-i);
72 i += 8;
73 } while (i < size);
74}
75#endif /* DEBUG */
76
77void *zd_tail(const void *buffer, size_t buffer_size, size_t tail_size)
78{
79 if (buffer_size < tail_size)
80 return NULL;
81 return (u8 *)buffer + (buffer_size - tail_size);
82}
diff --git a/drivers/net/wireless/zd1211rw/zd_util.h b/drivers/net/wireless/zd1211rw/zd_util.h
new file mode 100644
index 000000000000..ce26f7adea92
--- /dev/null
+++ b/drivers/net/wireless/zd1211rw/zd_util.h
@@ -0,0 +1,29 @@
1/* zd_util.h
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#ifndef _ZD_UTIL_H
19#define _ZD_UTIL_H
20
21void *zd_tail(const void *buffer, size_t buffer_size, size_t tail_size);
22
23#ifdef DEBUG
24void zd_hexdump(const void *bytes, size_t size);
25#else
26#define zd_hexdump(bytes, size)
27#endif /* DEBUG */
28
29#endif /* _ZD_UTIL_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-17 03:42:31 -0500