xref: /freebsd-11-stable/sys/contrib/dev/ath/ath_hal/ar9300/eeprom.diff

/*
 * Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */
diff --git a/hal/ar9300/ar9300_eeprom.c b/hal/ar9300/ar9300_eeprom.c
index 2fe5506..628026f 100644
--- a/hal/ar9300/ar9300_eeprom.c
+++ b/hal/ar9300/ar9300_eeprom.c
@@ -342,6 +342,8 @@ ar9300_otp_read(struct ath_hal *ah, u_int off, u_int32_t *data, HAL_BOOL is_wifi
     int status = 0;
     u_int32_t addr;
 
+    //ath_hal_printf(ah, "%s: reading offset 0x%x\n", __func__, off);
+
     addr = (AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah))?
         OTP_MEM_START_ADDRESS_WASP : OTP_MEM_START_ADDRESS;
 	if (!is_wifi) {
@@ -372,6 +374,7 @@ ar9300_otp_read(struct ath_hal *ah, u_int off, u_int32_t *data, HAL_BOOL is_wifi
         addr = BTOTP_STATUS1_EFUSE_READ_DATA;
     }
     *data = OS_REG_READ(ah, addr);
+    //ath_hal_printf(ah, "%s:  data=0x%x\n", __func__, *data);
     return AH_TRUE;
 }
 
@@ -603,6 +606,8 @@ ar9300_eeprom_attach(struct ath_hal *ah)
     systime_t current_system_time = OS_GET_TIMESTAMP();
 #endif    
 #endif
+
+    ath_hal_printf(ah, "%s: starting\n", __func__);
     ahp->try_dram = 1;
     ahp->try_eeprom = 1;
     ahp->try_otp = 1;
@@ -679,10 +684,14 @@ ar9300_eeprom_attach(struct ath_hal *ah)
 #endif
 #endif
     
+    ath_hal_printf(ah, "%s: calling ar9300_fill_eeprom\n", __func__);
     if (!ar9300_fill_eeprom(ah)) {
         return HAL_EIO;
     }
 
+    ath_hal_printf(ah, "%s: calibration data type = %d\n", __func__,
+      AH9300(ah)->calibration_data_source);
+
     return HAL_OK;
     /* return ar9300_check_eeprom(ah); */
 #endif
@@ -704,6 +713,7 @@ ar9300_eeprom_attach(struct ath_hal *ah)
     ahp->ah_eeprom.mac_addr[4] = 0xD0;
     ahp->ah_eeprom.mac_addr[5] = 0x00;
 #endif
+    ath_hal_printf(ah, "%s: %s:%d\n", __func__, __FILE__, __LINE__);
     return HAL_OK;
 #else
 #if ATH_DRIVER_SIM
@@ -764,13 +774,17 @@ ar9300_eeprom_attach(struct ath_hal *ah)
         return HAL_OK;
     }
 #endif
+    ath_hal_printf(ah, "%s: %s:%d\n", __func__, __FILE__, __LINE__);
     if (AR_SREV_HORNET(ah) || AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) {
         ahp->try_eeprom = 0;
     }
 
+    ath_hal_printf(ah, "%s: %s:%d\n", __func__, __FILE__, __LINE__);
     if (!ar9300_eeprom_restore(ah)) {
+    	ath_hal_printf(ah, "%s: %s:%d\n", __func__, __FILE__, __LINE__);
         return HAL_EIO;
     }
+    ath_hal_printf(ah, "%s: %s:%d\n", __func__, __FILE__, __LINE__);
     return HAL_OK;
 #endif
 #endif
@@ -3743,6 +3757,12 @@ ar9300_calibration_data_read_otp(struct ath_hal *ah, long address,
     unsigned long byte_addr;
     u_int32_t svalue;
 
+    ath_hal_printf(ah, "%s: called: address=%d, many=%d, is_wifi=%d\n",
+        __func__,
+	(int) address,
+	many,
+	is_wifi);
+
     if (((address) < 0) || ((address + many) > 0x400)) {
         return AH_FALSE;
     }
@@ -3802,6 +3822,8 @@ ar9300_calibration_data_read_array(struct ath_hal *ah, int address,
 {
     int it;
 
+    ath_hal_printf(ah, "%s: address=%d, many=%d\n", __func__, address, many);
+
     for (it = 0; it < many; it++) {
         (void)ar9300_calibration_data_read(ah, address - it, buffer + it, 1);
     }
@@ -4001,13 +4023,24 @@ ar9300_eeprom_restore_internal_address(struct ath_hal *ah,
     int restored;
     u_int16_t checksum, mchecksum;
 
+    ath_hal_printf(ah, "%s: called, cptr=0x%x, mdata_size=%d, blank=%d\n",
+      __func__, cptr, mdata_size, blank);
+
     restored = 0;
     for (it = 0; it < MSTATE; it++) {            
         (void) ar9300_calibration_data_read_array(
             ah, cptr, word, compression_header_length);
+        ath_hal_printf(ah, "%s:  word = 0x%x, 0x%x, 0x%x, 0x%x\n",
+          __func__,
+          word[0],
+          word[1],
+          word[2],
+          word[3]);
         if (word[0] == blank && word[1] == blank && word[2] == blank && word[3] == blank)
         {
-            break;
+            ath_hal_printf(ah, "%s: word=blank, skipping\n", __func__);
+            cptr -= compression_header_length;
+            continue;
         }
         ar9300_compression_header_unpack(
             word, &code, &reference, &length, &major, &minor);
@@ -4143,19 +4176,18 @@ static int
 ar9300_eeprom_restore_from_dram(struct ath_hal *ah, ar9300_eeprom_t *mptr,
     int mdata_size)
 {
-#if 0
     struct ath_hal_9300 *ahp = AH9300(ah);
     char *cal_ptr;
-#endif
 
+#if 0
     /* cal data in flash / DRAM isn't currently supported */
     ath_hal_printf(ah, "%s: Cal data from DRAM isn't supported\n",
       __func__);
 
     return -1;
+#endif
 
 #ifndef WIN32
-#if 0
     HALASSERT(mdata_size > 0);
 
     /* if cal_in_flash is true, the address sent by LMAC to HAL
@@ -4164,14 +4196,17 @@ ar9300_eeprom_restore_from_dram(struct ath_hal *ah, ar9300_eeprom_t *mptr,
     if(ar9300_eep_data_in_flash(ah))
         return -1;
 
+#if 0
     /* check if LMAC sent DRAM address is valid */
     if (!(uintptr_t)(AH_PRIVATE(ah)->ah_st)) {
         return -1;
     }
+#endif
 
     /* When calibration data is from host, Host will copy the 
        compressed data to the predefined DRAM location saved at ah->ah_st */
     ath_hal_printf(ah, "Restoring Cal data from DRAM\n");
+#if 0
 #ifdef __NetBSD__
     ahp->ah_cal_mem = OS_REMAP(ah, (uintptr_t)(AH_PRIVATE(ah)->ah_st), 
 							HOST_CALDATA_SIZE);
@@ -4184,6 +4219,20 @@ ar9300_eeprom_restore_from_dram(struct ath_hal *ah, ar9300_eeprom_t *mptr,
        HALDEBUG(ah, HAL_DEBUG_EEPROM,"%s: can't remap dram region\n", __func__);
        return -1;
     }
+#endif
+
+    /*
+     * The atheros HAL passes in this buffer anyway, and we copy things
+     * into it.  However, the FreeBSD driver doesn't supply this
+     * particular memory.  So, let's just assume attach/detach will
+     * provide us with a 16 kilobyte buffer for now, and hope the whole
+     * OTP path works.
+     */
+    if (! ahp->ah_cal_mem) {
+        ath_hal_printf(ah, "%s: FreeBSD: ah_cal_mem isn't set\n", __func__);
+        return -1;
+    }
+
     cal_ptr = &((char *)(ahp->ah_cal_mem))[AR9300_FLASH_CAL_START_OFFSET];
     OS_MEMCPY(mptr, cal_ptr, mdata_size);
 
@@ -4201,7 +4250,6 @@ ar9300_eeprom_restore_from_dram(struct ath_hal *ah, ar9300_eeprom_t *mptr,
     }
 
     return mdata_size;
-#endif
 #else
     return -1;
 #endif
@@ -4290,6 +4338,11 @@ ar9300_eeprom_restore_from_flash(struct ath_hal *ah, ar9300_eeprom_t *mptr,
     }
 
 #endif
+    ath_hal_printf(ah, "%s: eeprom version=%d, template version=%d\n",
+        __func__,
+        (int) mptr->eeprom_version,
+        (int) mptr->template_version);
+
     if (mptr->eeprom_version   == 0xff ||
         mptr->template_version == 0xff ||
         mptr->eeprom_version   == 0    ||
@@ -4321,10 +4374,11 @@ ar9300_eeprom_restore_internal(struct ath_hal *ah, ar9300_eeprom_t *mptr,
 
     nptr = -1;    
 
-    if ((AH9300(ah)->calibration_data_try == calibration_data_none ||
+    if (0 && (AH9300(ah)->calibration_data_try == calibration_data_none ||
          AH9300(ah)->calibration_data_try == calibration_data_dram) &&
          AH9300(ah)->try_dram && nptr < 0)
     {   
+        ath_hal_printf(ah, "%s: trying dram\n", __func__);
         AH9300(ah)->calibration_data_source = calibration_data_dram;
         AH9300(ah)->calibration_data_source_address = 0;
         nptr = ar9300_eeprom_restore_from_dram(ah, mptr, mdata_size);
@@ -4334,7 +4388,7 @@ ar9300_eeprom_restore_internal(struct ath_hal *ah, ar9300_eeprom_t *mptr,
         }
     }
     
-    if ((AH9300(ah)->calibration_data_try == calibration_data_none ||
+    if (0 && (AH9300(ah)->calibration_data_try == calibration_data_none ||
          AH9300(ah)->calibration_data_try == calibration_data_eeprom) &&
         AH9300(ah)->try_eeprom && nptr < 0)
     {
@@ -4343,6 +4397,7 @@ ar9300_eeprom_restore_internal(struct ath_hal *ah, ar9300_eeprom_t *mptr,
          * base_address=0x3ff where we used to write the data
          */
         AH9300(ah)->calibration_data_source = calibration_data_eeprom;
+        ath_hal_printf(ah, "%s: trying eeprom\n", __func__);
         if (AH9300(ah)->calibration_data_try_address != 0) {
             AH9300(ah)->calibration_data_source_address =
                 AH9300(ah)->calibration_data_try_address;
@@ -4374,7 +4429,7 @@ ar9300_eeprom_restore_internal(struct ath_hal *ah, ar9300_eeprom_t *mptr,
      * ##### should be an ifdef test for any AP usage,
      * either in driver or in nart
      */
-    if ((AH9300(ah)->calibration_data_try == calibration_data_none ||
+    if (0 && (AH9300(ah)->calibration_data_try == calibration_data_none ||
          AH9300(ah)->calibration_data_try == calibration_data_flash) &&
         AH9300(ah)->try_flash && nptr < 0)
     {
@@ -4388,10 +4443,17 @@ ar9300_eeprom_restore_internal(struct ath_hal *ah, ar9300_eeprom_t *mptr,
         }
     }
 
+    /* XXX FreeBSD? */
+    AH9300(ah)->calibration_data_try = calibration_data_otp;
+    AH9300(ah)->calibration_data_try_address = 0x2ff;
+
     if ((AH9300(ah)->calibration_data_try == calibration_data_none ||
          AH9300(ah)->calibration_data_try == calibration_data_otp) &&
         AH9300(ah)->try_otp && nptr < 0)
     {
+        ath_hal_printf(ah, "%s: trying OTP, try_address=0x%x\n",
+            __func__,
+            AH9300(ah)->calibration_data_try_address);
         AH9300(ah)->calibration_data_source = calibration_data_otp;
         if (AH9300(ah)->calibration_data_try_address != 0) {
             AH9300(ah)->calibration_data_source_address =
@@ -4526,6 +4588,8 @@ ar9300_eeprom_restore(struct ath_hal *ah)
     int mdata_size;
     HAL_BOOL status = AH_FALSE;
 
+    ath_hal_printf(ah, "%s: called\n", __func__);
+
     mptr = &ahp->ah_eeprom;
     mdata_size = ar9300_eeprom_struct_size();