sys/external/isc/atheros_hal/dist/ar5312/ar5312_misc.c

   1 /*
   2  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
   3  * Copyright (c) 2002-2008 Atheros Communications, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  *
  17  * $Id: ar5312_misc.c,v 1.1.1.1 2008/12/11 04:46:45 alc Exp $
  18  */
  19 #include "opt_ah.h"
  20
  21 #ifdef AH_SUPPORT_AR5312
  22
  23 #include "ah.h"
  24 #include "ah_internal.h"
  25 #include "ah_devid.h"
  26
  27 #include "ar5312/ar5312.h"
  28 #include "ar5312/ar5312reg.h"
  29 #include "ar5312/ar5312phy.h"
  30
  31 #define AR_NUM_GPIO     6               /* 6 GPIO pins */
  32 #define AR_GPIOD_MASK   0x0000002F      /* GPIO data reg r/w mask */
  33
  34 /*
  35  * Change the LED blinking pattern to correspond to the connectivity
  36  */
  37 void
  38 ar5312SetLedState(struct ath_hal *ah, HAL_LED_STATE state)
  39 {
  40         uint32_t val;
  41         uint32_t resOffset = (AR5312_RSTIMER_BASE - ((uint32_t) ah->ah_sh));
  42     if(IS_2316(ah)) return; /* not yet */
  43         val = SM(AR5312_PCICFG_LEDSEL0, AR5312_PCICFG_LEDSEL) |
  44                 SM(AR5312_PCICFG_LEDMOD0, AR5312_PCICFG_LEDMODE) |
  45                 2;
  46         OS_REG_WRITE(ah, resOffset+AR5312_PCICFG,
  47                 (OS_REG_READ(ah, AR5312_PCICFG) &~
  48                  (AR5312_PCICFG_LEDSEL | AR5312_PCICFG_LEDMODE |
  49                   AR5312_PCICFG_LEDSBR))
  50                      | val);
  51 }
  52
  53 /*
  54  * Detect if our wireless mac is present.
  55  */
  56 HAL_BOOL
  57 ar5312DetectCardPresent(struct ath_hal *ah)
  58 {
  59         uint16_t macVersion, macRev;
  60         uint32_t v;
  61
  62         /*
  63          * Read the Silicon Revision register and compare that
  64          * to what we read at attach time.  If the same, we say
  65          * a card/device is present.
  66          */
  67 #if (AH_SUPPORT_2316 || AH_SUPPORT_2317)
  68     if(IS_5315(ah))
  69     {
  70                 v = (OS_REG_READ(ah,
  71                          (AR5315_RSTIMER_BASE-((uint32_t) ah->ah_sh)) + AR5315_WREV))
  72                         & AR_SREV_ID;
  73                 macVersion = v >> AR_SREV_ID_S;
  74                 macRev = v & AR_SREV_REVISION;
  75                 return (AH_PRIVATE(ah)->ah_macVersion == macVersion &&
  76                                 AH_PRIVATE(ah)->ah_macRev == macRev);
  77     }
  78     else
  79 #endif
  80     {
  81                 v = (OS_REG_READ(ah,
  82                          (AR5312_RSTIMER_BASE-((uint32_t) ah->ah_sh)) + AR5312_WREV))
  83                         & AR_SREV_ID;
  84                 macVersion = v >> AR_SREV_ID_S;
  85                 macRev = v & AR_SREV_REVISION;
  86                 return (AH_PRIVATE(ah)->ah_macVersion == macVersion &&
  87                                 AH_PRIVATE(ah)->ah_macRev == macRev);
  88     }
  89 }
  90
  91 /*
  92  * If 32KHz clock exists, use it to lower power consumption during sleep
  93  *
  94  * Note: If clock is set to 32 KHz, delays on accessing certain
  95  *       baseband registers (27-31, 124-127) are required.
  96  */
  97 void
  98 ar5312SetupClock(struct ath_hal *ah, HAL_OPMODE opmode)
  99 {
 100         if (ar5212Use32KHzclock(ah, opmode)) {
 101                 /*
 102                  * Enable clocks to be turned OFF in BB during sleep
 103                  * and also enable turning OFF 32MHz/40MHz Refclk
 104                  * from A2.
 105                  */
 106                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_CONTROL, 0x1f);
 107                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_LIMIT,   0x0d);
 108                 OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL,        0x0c);
 109                 OS_REG_WRITE(ah, AR_PHY_M_SLEEP,           0x03);
 110                 OS_REG_WRITE(ah, AR_PHY_REFCLKDLY,         0x05);
 111                 OS_REG_WRITE(ah, AR_PHY_REFCLKPD,
 112                     IS_RAD5112_ANY(ah) ? 0x14 : 0x18);
 113
 114                 OS_REG_RMW_FIELD(ah, AR_USEC, AR_USEC_USEC32, 1);
 115                 OS_REG_WRITE(ah, AR_TSF_PARM, 61);      /* 32 KHz TSF incr */
 116
 117         } else {
 118                 OS_REG_WRITE(ah, AR_TSF_PARM, 1);       /* 32 MHz TSF incr */
 119                 OS_REG_RMW_FIELD(ah, AR_USEC, AR_USEC_USEC32,
 120                     IS_RAD5112_ANY(ah) ? 39 : 31);
 121
 122                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_CONTROL, 0x1f);
 123                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_LIMIT,   0x7f);
 124
 125                 if (IS_5312_2_X(ah)) {
 126                         /* Set ADC/DAC select values */
 127                         OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL,        0x04);
 128                 } else {
 129                         OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL,        0x0e);
 130                         OS_REG_WRITE(ah, AR_PHY_M_SLEEP,           0x0c);
 131                         OS_REG_WRITE(ah, AR_PHY_REFCLKDLY,         0xff);
 132                         OS_REG_WRITE(ah, AR_PHY_REFCLKPD,
 133                             IS_RAD5112_ANY(ah) ? 0x14 : 0x18);
 134                 }
 135         }
 136 }
 137
 138 /*
 139  * If 32KHz clock exists, turn it off and turn back on the 32Mhz
 140  */
 141 void
 142 ar5312RestoreClock(struct ath_hal *ah, HAL_OPMODE opmode)
 143 {
 144         if (ar5212Use32KHzclock(ah, opmode)) {
 145                 /* # Set sleep clock rate back to 32 MHz. */
 146                 OS_REG_WRITE(ah, AR_TSF_PARM, 1);       /* 32 MHz TSF incr */
 147                 OS_REG_RMW_FIELD(ah, AR_USEC, AR_USEC_USEC32,
 148                     IS_RAD5112_ANY(ah) ? 39 : 31);
 149
 150                 /*
 151                  * Restore BB registers to power-on defaults
 152                  */
 153                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_CONTROL, 0x1f);
 154                 OS_REG_WRITE(ah, AR_PHY_SLEEP_CTR_LIMIT,   0x7f);
 155                 if (IS_5312_2_X(ah)) {
 156                         /* Set ADC/DAC select values */
 157                         OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL,        0x04);
 158                 } else {
 159                         OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL,        0x0e);
 160                         OS_REG_WRITE(ah, AR_PHY_M_SLEEP,           0x0c);
 161                         OS_REG_WRITE(ah, AR_PHY_REFCLKDLY,         0xff);
 162                         OS_REG_WRITE(ah, AR_PHY_REFCLKPD,
 163                             IS_RAD5112_ANY(ah) ? 0x14 : 0x18);
 164                 }
 165         }
 166 }
 167
 168 #endif /* AH_SUPPORT_AR5312 */