diff options
Diffstat (limited to 'drivers/staging/r8188eu/core/rtw_efuse.c')
| -rw-r--r-- | drivers/staging/r8188eu/core/rtw_efuse.c | 61 |
1 files changed, 24 insertions, 37 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_efuse.c b/drivers/staging/r8188eu/core/rtw_efuse.c index 0e0e60638880..df9534dd25cb 100644 --- a/drivers/staging/r8188eu/core/rtw_efuse.c +++ b/drivers/staging/r8188eu/core/rtw_efuse.c @@ -28,22 +28,35 @@ ReadEFuseByte( u32 value32; u8 readbyte; u16 retry; + int res; /* Write Address */ rtw_write8(Adapter, EFUSE_CTRL + 1, (_offset & 0xff)); - readbyte = rtw_read8(Adapter, EFUSE_CTRL + 2); + res = rtw_read8(Adapter, EFUSE_CTRL + 2, &readbyte); + if (res) + return; + rtw_write8(Adapter, EFUSE_CTRL + 2, ((_offset >> 8) & 0x03) | (readbyte & 0xfc)); /* Write bit 32 0 */ - readbyte = rtw_read8(Adapter, EFUSE_CTRL + 3); + res = rtw_read8(Adapter, EFUSE_CTRL + 3, &readbyte); + if (res) + return; + rtw_write8(Adapter, EFUSE_CTRL + 3, (readbyte & 0x7f)); /* Check bit 32 read-ready */ - retry = 0; - value32 = rtw_read32(Adapter, EFUSE_CTRL); - while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < 10000)) { - value32 = rtw_read32(Adapter, EFUSE_CTRL); - retry++; + res = rtw_read32(Adapter, EFUSE_CTRL, &value32); + if (res) + return; + + for (retry = 0; retry < 10000; retry++) { + res = rtw_read32(Adapter, EFUSE_CTRL, &value32); + if (res) + continue; + + if (((value32 >> 24) & 0xff) & 0x80) + break; } /* 20100205 Joseph: Add delay suggested by SD1 Victor. */ @@ -51,37 +64,11 @@ ReadEFuseByte( /* Designer says that there shall be some delay after ready bit is set, or the */ /* result will always stay on last data we read. */ udelay(50); - value32 = rtw_read32(Adapter, EFUSE_CTRL); + res = rtw_read32(Adapter, EFUSE_CTRL, &value32); + if (res) + return; *pbuf = (u8)(value32 & 0xff); -} - -/*----------------------------------------------------------------------------- - * Function: EFUSE_ShadowMapUpdate - * - * Overview: Transfer current EFUSE content to shadow init and modify map. - * - * Input: NONE - * - * Output: NONE - * - * Return: NONE - * - * Revised History: - * When Who Remark - * 11/13/2008 MHC Create Version 0. - * - *---------------------------------------------------------------------------*/ -void EFUSE_ShadowMapUpdate(struct adapter *pAdapter) -{ - struct eeprom_priv *pEEPROM = &pAdapter->eeprompriv; - - if (pEEPROM->bautoload_fail_flag) { - memset(pEEPROM->efuse_eeprom_data, 0xFF, EFUSE_MAP_LEN_88E); - return; - } - rtl8188e_EfusePowerSwitch(pAdapter, true); - rtl8188e_ReadEFuse(pAdapter, 0, EFUSE_MAP_LEN_88E, pEEPROM->efuse_eeprom_data); - rtl8188e_EfusePowerSwitch(pAdapter, false); + /* FIXME: return an error to caller */ } |