drivers/net/wireless/zd1211rw/zd_rf_al2230.c

   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
  24 static 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
  41 static 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
 124 static 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
 244 static 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
 260 static 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
 271 static 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
 282 static 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
 293 int 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 }