wl1251: implement multicast address filtering (fwd)
[pandora-kernel.git] / drivers / net / wireless / wl1251 / init.c
1 /*
2  * This file is part of wl1251
3  *
4  * Copyright (C) 2009 Nokia Corporation
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25
26 #include "init.h"
27 #include "wl12xx_80211.h"
28 #include "acx.h"
29 #include "cmd.h"
30 #include "reg.h"
31
32 int wl1251_hw_init_hwenc_config(struct wl1251 *wl)
33 {
34         int ret;
35
36         ret = wl1251_acx_feature_cfg(wl, 0);
37         if (ret < 0) {
38                 wl1251_warning("couldn't set feature config");
39                 return ret;
40         }
41
42         ret = wl1251_acx_default_key(wl, wl->default_key);
43         if (ret < 0) {
44                 wl1251_warning("couldn't set default key");
45                 return ret;
46         }
47
48         return 0;
49 }
50
51 int wl1251_hw_init_templates_config(struct wl1251 *wl)
52 {
53         int ret;
54         u8 partial_vbm[PARTIAL_VBM_MAX];
55
56         /* send empty templates for fw memory reservation */
57         ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
58                                       sizeof(struct wl12xx_probe_req_template));
59         if (ret < 0)
60                 return ret;
61
62         ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, NULL,
63                                       sizeof(struct wl12xx_null_data_template));
64         if (ret < 0)
65                 return ret;
66
67         ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, NULL,
68                                       sizeof(struct wl12xx_ps_poll_template));
69         if (ret < 0)
70                 return ret;
71
72         ret = wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
73                                       sizeof
74                                       (struct wl12xx_qos_null_data_template));
75         if (ret < 0)
76                 return ret;
77
78         ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
79                                       sizeof
80                                       (struct wl12xx_probe_resp_template));
81         if (ret < 0)
82                 return ret;
83
84         ret = wl1251_cmd_template_set(wl, CMD_BEACON, NULL,
85                                       sizeof
86                                       (struct wl12xx_beacon_template));
87         if (ret < 0)
88                 return ret;
89
90         /* tim templates, first reserve space then allocate an empty one */
91         memset(partial_vbm, 0, PARTIAL_VBM_MAX);
92         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
93         if (ret < 0)
94                 return ret;
95
96         ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
97         if (ret < 0)
98                 return ret;
99
100         return 0;
101 }
102
103 int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter)
104 {
105         int ret;
106
107         ret = wl1251_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
108         if (ret < 0)
109                 return ret;
110
111         ret = wl1251_acx_rx_config(wl, config, filter);
112         if (ret < 0)
113                 return ret;
114
115         return 0;
116 }
117
118 int wl1251_hw_init_phy_config(struct wl1251 *wl)
119 {
120         int ret;
121
122         ret = wl1251_acx_pd_threshold(wl);
123         if (ret < 0)
124                 return ret;
125
126         ret = wl1251_acx_slot(wl, DEFAULT_SLOT_TIME);
127         if (ret < 0)
128                 return ret;
129
130         ret = wl1251_acx_group_address_tbl(wl, true, NULL, 0);
131         if (ret < 0)
132                 return ret;
133
134         ret = wl1251_acx_service_period_timeout(wl);
135         if (ret < 0)
136                 return ret;
137
138         ret = wl1251_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
139         if (ret < 0)
140                 return ret;
141
142         return 0;
143 }
144
145 int wl1251_hw_init_beacon_filter(struct wl1251 *wl)
146 {
147         int ret;
148
149         /* disable beacon filtering at this stage */
150         ret = wl1251_acx_beacon_filter_opt(wl, false);
151         if (ret < 0)
152                 return ret;
153
154         ret = wl1251_acx_beacon_filter_table(wl);
155         if (ret < 0)
156                 return ret;
157
158         return 0;
159 }
160
161 int wl1251_hw_init_pta(struct wl1251 *wl)
162 {
163         int ret;
164
165         ret = wl1251_acx_sg_enable(wl);
166         if (ret < 0)
167                 return ret;
168
169         ret = wl1251_acx_sg_cfg(wl);
170         if (ret < 0)
171                 return ret;
172
173         return 0;
174 }
175
176 int wl1251_hw_init_energy_detection(struct wl1251 *wl)
177 {
178         int ret;
179
180         ret = wl1251_acx_cca_threshold(wl);
181         if (ret < 0)
182                 return ret;
183
184         return 0;
185 }
186
187 int wl1251_hw_init_beacon_broadcast(struct wl1251 *wl)
188 {
189         int ret;
190
191         ret = wl1251_acx_bcn_dtim_options(wl);
192         if (ret < 0)
193                 return ret;
194
195         return 0;
196 }
197
198 int wl1251_hw_init_power_auth(struct wl1251 *wl)
199 {
200         return wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
201 }
202
203 int wl1251_hw_init_mem_config(struct wl1251 *wl)
204 {
205         int ret;
206
207         ret = wl1251_acx_mem_cfg(wl);
208         if (ret < 0)
209                 return ret;
210
211         wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
212                                           GFP_KERNEL);
213         if (!wl->target_mem_map) {
214                 wl1251_error("couldn't allocate target memory map");
215                 return -ENOMEM;
216         }
217
218         /* we now ask for the firmware built memory map */
219         ret = wl1251_acx_mem_map(wl, wl->target_mem_map,
220                                  sizeof(struct wl1251_acx_mem_map));
221         if (ret < 0) {
222                 wl1251_error("couldn't retrieve firmware memory map");
223                 kfree(wl->target_mem_map);
224                 wl->target_mem_map = NULL;
225                 return ret;
226         }
227
228         return 0;
229 }
230
231 static int wl1251_hw_init_txq_fill(u8 qid,
232                                    struct acx_tx_queue_qos_config *config,
233                                    u32 num_blocks)
234 {
235         config->qid = qid;
236
237         switch (qid) {
238         case QOS_AC_BE:
239                 config->high_threshold =
240                         (QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
241                 config->low_threshold =
242                         (QOS_TX_LOW_BE_DEF * num_blocks) / 100;
243                 break;
244         case QOS_AC_BK:
245                 config->high_threshold =
246                         (QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
247                 config->low_threshold =
248                         (QOS_TX_LOW_BK_DEF * num_blocks) / 100;
249                 break;
250         case QOS_AC_VI:
251                 config->high_threshold =
252                         (QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
253                 config->low_threshold =
254                         (QOS_TX_LOW_VI_DEF * num_blocks) / 100;
255                 break;
256         case QOS_AC_VO:
257                 config->high_threshold =
258                         (QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
259                 config->low_threshold =
260                         (QOS_TX_LOW_VO_DEF * num_blocks) / 100;
261                 break;
262         default:
263                 wl1251_error("Invalid TX queue id: %d", qid);
264                 return -EINVAL;
265         }
266
267         return 0;
268 }
269
270 static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
271 {
272         struct acx_tx_queue_qos_config *config;
273         struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
274         int ret, i;
275
276         wl1251_debug(DEBUG_ACX, "acx tx queue config");
277
278         config = kzalloc(sizeof(*config), GFP_KERNEL);
279         if (!config) {
280                 ret = -ENOMEM;
281                 goto out;
282         }
283
284         for (i = 0; i < MAX_NUM_OF_AC; i++) {
285                 ret = wl1251_hw_init_txq_fill(i, config,
286                                               wl_mem_map->num_tx_mem_blocks);
287                 if (ret < 0)
288                         goto out;
289
290                 ret = wl1251_cmd_configure(wl, ACX_TX_QUEUE_CFG,
291                                            config, sizeof(*config));
292                 if (ret < 0)
293                         goto out;
294         }
295
296         wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
297         wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
298         wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
299         wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
300
301 out:
302         kfree(config);
303         return ret;
304 }
305
306 static int wl1251_hw_init_data_path_config(struct wl1251 *wl)
307 {
308         int ret;
309
310         /* asking for the data path parameters */
311         wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
312                                 GFP_KERNEL);
313         if (!wl->data_path) {
314                 wl1251_error("Couldnt allocate data path parameters");
315                 return -ENOMEM;
316         }
317
318         ret = wl1251_acx_data_path_params(wl, wl->data_path);
319         if (ret < 0) {
320                 kfree(wl->data_path);
321                 wl->data_path = NULL;
322                 return ret;
323         }
324
325         return 0;
326 }
327
328
329 int wl1251_hw_init(struct wl1251 *wl)
330 {
331         struct wl1251_acx_mem_map *wl_mem_map;
332         int ret;
333
334         ret = wl1251_hw_init_hwenc_config(wl);
335         if (ret < 0)
336                 return ret;
337
338         /* Template settings */
339         ret = wl1251_hw_init_templates_config(wl);
340         if (ret < 0)
341                 return ret;
342
343         /* Default memory configuration */
344         ret = wl1251_hw_init_mem_config(wl);
345         if (ret < 0)
346                 return ret;
347
348         /* Default data path configuration  */
349         ret = wl1251_hw_init_data_path_config(wl);
350         if (ret < 0)
351                 goto out_free_memmap;
352
353         /* RX config */
354         ret = wl1251_hw_init_rx_config(wl,
355                                        RX_CFG_PROMISCUOUS | RX_CFG_TSF,
356                                        RX_FILTER_OPTION_DEF);
357         /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
358            RX_FILTER_OPTION_FILTER_ALL); */
359         if (ret < 0)
360                 goto out_free_data_path;
361
362         /* TX queues config */
363         ret = wl1251_hw_init_tx_queue_config(wl);
364         if (ret < 0)
365                 goto out_free_data_path;
366
367         /* PHY layer config */
368         ret = wl1251_hw_init_phy_config(wl);
369         if (ret < 0)
370                 goto out_free_data_path;
371
372         /* Initialize connection monitoring thresholds */
373         ret = wl1251_acx_conn_monit_params(wl);
374         if (ret < 0)
375                 goto out_free_data_path;
376
377         /* Beacon filtering */
378         ret = wl1251_hw_init_beacon_filter(wl);
379         if (ret < 0)
380                 goto out_free_data_path;
381
382         /* Bluetooth WLAN coexistence */
383         ret = wl1251_hw_init_pta(wl);
384         if (ret < 0)
385                 goto out_free_data_path;
386
387         /* Energy detection */
388         ret = wl1251_hw_init_energy_detection(wl);
389         if (ret < 0)
390                 goto out_free_data_path;
391
392         /* Beacons and boradcast settings */
393         ret = wl1251_hw_init_beacon_broadcast(wl);
394         if (ret < 0)
395                 goto out_free_data_path;
396
397         /* Enable rx data path */
398         ret = wl1251_cmd_data_path_rx(wl, wl->channel, 1);
399         if (ret < 0)
400                 goto out_free_data_path;
401
402         /* Enable tx data path */
403         ret = wl1251_cmd_data_path_tx(wl, wl->channel, 1);
404         if (ret < 0)
405                 goto out_free_data_path;
406
407         /* Default power state */
408         ret = wl1251_hw_init_power_auth(wl);
409         if (ret < 0)
410                 goto out_free_data_path;
411
412         wl_mem_map = wl->target_mem_map;
413         wl1251_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
414                     wl_mem_map->num_tx_mem_blocks,
415                     wl->data_path->tx_control_addr,
416                     wl_mem_map->num_rx_mem_blocks,
417                     wl->data_path->rx_control_addr);
418
419         return 0;
420
421  out_free_data_path:
422         kfree(wl->data_path);
423
424  out_free_memmap:
425         kfree(wl->target_mem_map);
426
427         return ret;
428 }