]> Git Repo - J-linux.git/blob - drivers/staging/vt6656/baseband.c
Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
[J-linux.git] / drivers / staging / vt6656 / baseband.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
4  * All rights reserved.
5  *
6  * Purpose: Implement functions to access baseband
7  *
8  * Author: Jerry Chen
9  *
10  * Date: Jun. 5, 2002
11  *
12  * Functions:
13  *      vnt_get_frame_time      - Calculate data frame transmitting time
14  *      vnt_get_phy_field       - Calculate PhyLength, PhyService and Phy
15  *                                Signal parameter for baseband Tx
16  *      vnt_vt3184_init         - VIA VT3184 baseband chip init code
17  *
18  * Revision History:
19  *
20  *
21  */
22
23 #include <linux/bits.h>
24 #include <linux/errno.h>
25 #include <linux/kernel.h>
26 #include "device.h"
27 #include "mac.h"
28 #include "baseband.h"
29 #include "rf.h"
30 #include "usbpipe.h"
31
32 static const u8 vnt_vt3184_agc[] = {
33         0x00, 0x00, 0x02, 0x02, 0x04, 0x04, 0x06, 0x06,
34         0x08, 0x08, 0x0a, 0x0a, 0x0c, 0x0c, 0x0e, 0x0e, /* 0x0f */
35         0x10, 0x10, 0x12, 0x12, 0x14, 0x14, 0x16, 0x16,
36         0x18, 0x18, 0x1a, 0x1a, 0x1c, 0x1c, 0x1e, 0x1e, /* 0x1f */
37         0x20, 0x20, 0x22, 0x22, 0x24, 0x24, 0x26, 0x26,
38         0x28, 0x28, 0x2a, 0x2a, 0x2c, 0x2c, 0x2e, 0x2e, /* 0x2f */
39         0x30, 0x30, 0x32, 0x32, 0x34, 0x34, 0x36, 0x36,
40         0x38, 0x38, 0x3a, 0x3a, 0x3c, 0x3c, 0x3e, 0x3e  /* 0x3f */
41 };
42
43 static u8 vnt_vt3184_al2230[] = {
44         0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
45         0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
46         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
47         0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
48         0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
49         0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
50         0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
51         0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
52         0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
53         0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
54         0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55         0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
56         0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
57         0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
58         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
59         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
60         0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
61         0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
62         0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
63         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
64         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
65         0x18, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x18, /* 0xaf */
66         0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
67         0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
68         0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x0e, 0x0a,
69         0x0e, 0x00, 0x82, 0xa7, 0x3c, 0x10, 0x30, 0x05, /* 0xcf */
70         0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
71         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
72         0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x12,
73         0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x05, /* 0xef */
74         0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
75         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00  /* 0xff */
76 };
77
78 /* {{RobertYu:20060515, new BB setting for VT3226D0 */
79 static const u8 vnt_vt3184_vt3226d0[] = {
80         0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
81         0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
82         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
83         0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
84         0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
85         0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
86         0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
87         0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
88         0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
89         0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
90         0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
91         0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
92         0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
93         0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
94         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
95         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
96         0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
97         0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
98         0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
99         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
100         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
101         0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, /* 0xaf */
102         0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
103         0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
104         0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x10, 0x0a,
105         0x0e, 0x00, 0x84, 0xa7, 0x3c, 0x10, 0x24, 0x05, /* 0xcf */
106         0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
107         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
108         0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10,
109         0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x08, /* 0xef */
110         0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
111         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00  /* 0xff */
112 };
113
114 struct vnt_threshold {
115         u8 bb_pre_ed_rssi;
116         u8 cr_201;
117         u8 cr_206;
118 };
119
120 static const struct vnt_threshold al2230_vnt_threshold[] = {
121         {0, 0x00, 0x30},        /* Max sensitivity */
122         {68, 0x00, 0x36},
123         {67, 0x00, 0x43},
124         {66, 0x00, 0x51},
125         {65, 0x00, 0x62},
126         {64, 0x00, 0x79},
127         {63, 0x00, 0x93},
128         {62, 0x00, 0xb9},
129         {61, 0x00, 0xe3},
130         {60, 0x01, 0x18},
131         {59, 0x01, 0x54},
132         {58, 0x01, 0xa0},
133         {57, 0x02, 0x20},
134         {56, 0x02, 0xa0},
135         {55, 0x03, 0x00},
136         {53, 0x06, 0x00},
137         {51, 0x09, 0x00},
138         {49, 0x0e, 0x00},
139         {47, 0x15, 0x00},
140         {46, 0x1a, 0x00},
141         {45, 0xff, 0x00}
142 };
143
144 static const struct vnt_threshold vt3226_vnt_threshold[] = {
145         {0, 0x00, 0x24},        /* Max sensitivity */
146         {68, 0x00, 0x2d},
147         {67, 0x00, 0x36},
148         {66, 0x00, 0x43},
149         {65, 0x00, 0x52},
150         {64, 0x00, 0x68},
151         {63, 0x00, 0x80},
152         {62, 0x00, 0x9c},
153         {61, 0x00, 0xc0},
154         {60, 0x00, 0xea},
155         {59, 0x01, 0x30},
156         {58, 0x01, 0x70},
157         {57, 0x01, 0xb0},
158         {56, 0x02, 0x30},
159         {55, 0x02, 0xc0},
160         {53, 0x04, 0x00},
161         {51, 0x07, 0x00},
162         {49, 0x0a, 0x00},
163         {47, 0x11, 0x00},
164         {45, 0x18, 0x00},
165         {43, 0x26, 0x00},
166         {42, 0x36, 0x00},
167         {41, 0xff, 0x00}
168 };
169
170 /*
171  * Description: Set Antenna mode
172  *
173  * Parameters:
174  *  In:
175  *      priv            - Device Structure
176  *      antenna_mode    - Antenna Mode
177  *  Out:
178  *      none
179  *
180  * Return Value: none
181  *
182  */
183 int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode)
184 {
185         switch (antenna_mode) {
186         case ANT_TXA:
187         case ANT_TXB:
188                 break;
189         case ANT_RXA:
190                 priv->bb_rx_conf &= 0xFC;
191                 break;
192         case ANT_RXB:
193                 priv->bb_rx_conf &= 0xFE;
194                 priv->bb_rx_conf |= 0x02;
195                 break;
196         }
197
198         return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD,
199                                (u16)antenna_mode, 0, 0, NULL);
200 }
201
202 /*
203  * Description: Set Antenna mode
204  *
205  * Parameters:
206  *  In:
207  *      pDevice          - Device Structure
208  *      byAntennaMode    - Antenna Mode
209  *  Out:
210  *      none
211  *
212  * Return Value: none
213  *
214  */
215
216 int vnt_vt3184_init(struct vnt_private *priv)
217 {
218         int ret;
219         u16 length;
220         u8 *addr = NULL;
221         const u8 *c_addr;
222         u8 data;
223
224         ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM,
225                              EEP_MAX_CONTEXT_SIZE, priv->eeprom);
226         if (ret)
227                 goto end;
228
229         priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE];
230
231         dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type);
232
233         if ((priv->rf_type == RF_AL2230) ||
234             (priv->rf_type == RF_AL2230S)) {
235                 priv->bb_rx_conf = vnt_vt3184_al2230[10];
236                 length = sizeof(vnt_vt3184_al2230);
237                 addr = vnt_vt3184_al2230;
238
239                 priv->bb_vga[0] = 0x1c;
240                 priv->bb_vga[1] = 0x10;
241                 priv->bb_vga[2] = 0x0;
242                 priv->bb_vga[3] = 0x0;
243
244         } else if ((priv->rf_type == RF_VT3226) ||
245                    (priv->rf_type == RF_VT3226D0)) {
246                 priv->bb_rx_conf = vnt_vt3184_vt3226d0[10];
247                 length = sizeof(vnt_vt3184_vt3226d0);
248                 c_addr = vnt_vt3184_vt3226d0;
249
250                 priv->bb_vga[0] = 0x20;
251                 priv->bb_vga[1] = 0x10;
252                 priv->bb_vga[2] = 0x0;
253                 priv->bb_vga[3] = 0x0;
254
255                 /* Fix VT3226 DFC system timing issue */
256                 ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2,
257                                           SOFTPWRCTL_RFLEOPT);
258                 if (ret)
259                         goto end;
260         } else {
261                 goto end;
262         }
263
264         if (addr)
265                 c_addr = addr;
266
267         ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE,
268                                      MESSAGE_REQUEST_BBREG, length, c_addr);
269         if (ret)
270                 goto end;
271
272         ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0,
273                               MESSAGE_REQUEST_BBAGC,
274                               sizeof(vnt_vt3184_agc), vnt_vt3184_agc);
275         if (ret)
276                 goto end;
277
278         if ((priv->rf_type == RF_VT3226) ||
279             (priv->rf_type == RF_VT3226D0)) {
280                 data = (priv->rf_type == RF_VT3226D0) ? 0x11 : 0x23;
281
282                 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG,
283                                          MAC_REG_ITRTMSET, data);
284                 if (ret)
285                         goto end;
286
287                 ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
288                 if (ret)
289                         goto end;
290         }
291
292         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f);
293         if (ret)
294                 goto end;
295
296         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
297         if (ret)
298                 goto end;
299
300         ret = vnt_rf_table_download(priv);
301         if (ret)
302                 goto end;
303
304         /* Fix for TX USB resets from vendors driver */
305         ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4,
306                              MESSAGE_REQUEST_MEM, sizeof(data), &data);
307         if (ret)
308                 goto end;
309
310         data |= 0x2;
311
312         ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4,
313                               MESSAGE_REQUEST_MEM, sizeof(data), &data);
314
315 end:
316         return ret;
317 }
318
319 /*
320  * Description: Set ShortSlotTime mode
321  *
322  * Parameters:
323  *  In:
324  *      priv    - Device Structure
325  *  Out:
326  *      none
327  *
328  * Return Value: none
329  *
330  */
331 int vnt_set_short_slot_time(struct vnt_private *priv)
332 {
333         int ret = 0;
334         u8 bb_vga = 0;
335
336         if (priv->short_slot_time)
337                 priv->bb_rx_conf &= 0xdf;
338         else
339                 priv->bb_rx_conf |= 0x20;
340
341         ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga);
342         if (ret)
343                 return ret;
344
345         if (bb_vga == priv->bb_vga[0])
346                 priv->bb_rx_conf |= 0x20;
347
348         return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
349                                   priv->bb_rx_conf);
350 }
351
352 int vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data)
353 {
354         int ret;
355
356         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xE7, data);
357         if (ret)
358                 return ret;
359
360         /* patch for 3253B0 Baseband with Cardbus module */
361         if (priv->short_slot_time)
362                 priv->bb_rx_conf &= 0xdf; /* 1101 1111 */
363         else
364                 priv->bb_rx_conf |= 0x20; /* 0010 0000 */
365
366         return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
367                                   priv->bb_rx_conf);
368 }
369
370 /*
371  * Description: vnt_set_deep_sleep
372  *
373  * Parameters:
374  *  In:
375  *      priv    - Device Structure
376  *  Out:
377  *      none
378  *
379  * Return Value: none
380  *
381  */
382 int vnt_set_deep_sleep(struct vnt_private *priv)
383 {
384         int ret = 0;
385
386         /* CR12 */
387         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17);
388         if (ret)
389                 return ret;
390
391         /* CR13 */
392         return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9);
393 }
394
395 int vnt_exit_deep_sleep(struct vnt_private *priv)
396 {
397         int ret = 0;
398
399         /* CR12 */
400         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00);
401         if (ret)
402                 return ret;
403
404         /* CR13 */
405         return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
406 }
407
408 int vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning)
409 {
410         const struct vnt_threshold *threshold = NULL;
411         u8 length;
412         u8 cr_201, cr_206;
413         u8 ed_inx;
414         int ret;
415
416         switch (priv->rf_type) {
417         case RF_AL2230:
418         case RF_AL2230S:
419                 threshold = al2230_vnt_threshold;
420                 length = ARRAY_SIZE(al2230_vnt_threshold);
421                 break;
422
423         case RF_VT3226:
424         case RF_VT3226D0:
425                 threshold = vt3226_vnt_threshold;
426                 length = ARRAY_SIZE(vt3226_vnt_threshold);
427                 break;
428         }
429
430         if (!threshold)
431                 return -EINVAL;
432
433         for (ed_inx = scanning ? 0 : length - 1; ed_inx > 0; ed_inx--) {
434                 if (priv->bb_pre_ed_rssi <= threshold[ed_inx].bb_pre_ed_rssi)
435                         break;
436         }
437
438         cr_201 = threshold[ed_inx].cr_201;
439         cr_206 = threshold[ed_inx].cr_206;
440
441         if (ed_inx == priv->bb_pre_ed_index && !scanning)
442                 return 0;
443
444         priv->bb_pre_ed_index = ed_inx;
445
446         dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n",
447                 __func__, priv->bb_pre_ed_rssi);
448
449         ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xc9, cr_201);
450         if (ret)
451                 return ret;
452
453         return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xce, cr_206);
454 }
455
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