madwifi: rename patch from ifxmips -> lantiq

[openwrt.git] / package / madwifi / patches / 354-lantiq_eeprom.patch

diff --git a/package/madwifi/patches/354-lantiq_eeprom.patch b/package/madwifi/patches/354-lantiq_eeprom.patch
new file mode 100644 (file)
index 0000000..59036b1
--- /dev/null
+++ b/package/madwifi/patches/354-lantiq_eeprom.patch
@@ -0,0 +1,95 @@
+--- a/ath_hal/ah_os.c
++++ b/ath_hal/ah_os.c
+@@ -343,6 +343,46 @@ EXPORT_SYMBOL(ath_hal_func);
+  * NB: see the comments in ah_osdep.h about byte-swapping register
+  *     reads and writes to understand what's going on below.
+  */
++
++#ifdef CONFIG_LANTIQ
++extern int lantiq_emulate_madwifi_eep;
++extern unsigned long long lantiq_madwifi_eep_addr;
++#define EEPROM_EMULATION 1
++#endif
++
++#ifdef EEPROM_EMULATION
++static int ath_hal_eeprom(struct ath_hal *ah, unsigned long addr, int val, int write)
++{
++      static int addrsel = 0;
++      static int rc = 0;
++
++      if (write) {
++              if(addr == 0x6000) {
++                      addrsel = val * 2;
++                      rc = 0;
++              }
++      } else {
++              switch(addr)
++              {
++              case 0x600c:
++                      if(rc++ < 2)
++                              val = 0x00000000;
++                      else
++                              val = 0x00000002;
++                      break;
++              case 0x6004:
++                      val = cpu_to_le16(__raw_readw((u16 *) KSEG1ADDR(lantiq_madwifi_eep_addr + addrsel)));
++                      /* this forces the regdomain to 0x00 (worldwide), as the original setting
++                       * causes issues with the HAL */
++                      if (addrsel == 0x17e)
++                              val = 0;
++                      break;
++              }
++      }
++      return val;
++}
++#endif
++
+ void __ahdecl
+ ath_hal_reg_write(struct ath_hal *ah, u_int reg, u_int32_t val)
+ {
+@@ -351,20 +391,33 @@ ath_hal_reg_write(struct ath_hal *ah, u_
+               ath_hal_printf(ah, "%s: WRITE 0x%x <= 0x%x\n", 
+                               (ath_hal_func ?: "unknown"), reg, val);
+ #endif
+-      _OS_REG_WRITE(ah, reg, val);
++#ifdef EEPROM_EMULATION
++      if((reg >= 0x6000) && (reg <= 0x6010) && lantiq_emulate_madwifi_eep)
++      {
++              val = ath_hal_eeprom(ah, reg, val, 1);
++      } else
++#endif
++              _OS_REG_WRITE(ah, reg, val);
+ }
+ EXPORT_SYMBOL(ath_hal_reg_write);
+ 
++
+ /* This should only be called while holding the lock, sc->sc_hal_lock. */
+ u_int32_t __ahdecl
+ ath_hal_reg_read(struct ath_hal *ah, u_int reg)
+ {
+-      u_int32_t val;
++      u_int32_t val;
++#ifdef EEPROM_EMULATION
++      if((reg >= 0x6000) && (reg <= 0x6010) && lantiq_emulate_madwifi_eep)
++      {
++              val = ath_hal_eeprom(ah, reg, 0, 0);
++      } else
++#endif
++              val = _OS_REG_READ(ah, reg);
+ 
+-      val = _OS_REG_READ(ah, reg);
+ #ifdef AH_DEBUG
+       if (ath_hal_debug > 1)
+-              ath_hal_printf(ah, "%s: READ 0x%x => 0x%x\n", 
++              ath_hal_printf(ah, "%s: READ 0x%x => 0x%x\n",
+                               (ath_hal_func ?: "unknown"), reg, val);
+ #endif
+       return val;
+@@ -581,7 +634,6 @@ init_ath_hal(void)
+ {
+       const char *sep;
+       int i;
+-
+       printk(KERN_INFO "%s: %s (", dev_info, ath_hal_version);
+       sep = "";
+       for (i = 0; ath_hal_buildopts[i] != NULL; i++) {