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rtlwifi: Create common routine to get hardware info

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All of the rtlwifi family of drivers have a similar routine that acquires
the hardware info from efuse and initializes a number of variables in the
driver's private area. A common routine is created for all drivers to use.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Larry Finger 2016-07-05 10:08:06 -05:00 • committed by Kalle Valo
parent 5781fc29db
commit edb45b67a0
2 changed files with 80 additions and 0 deletions
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78
drivers/net/wireless/realtek/rtlwifi/efuse.c
View file

@ -24,6 +24,7 @@
*****************************************************************************/ *****************************************************************************/
#include "wifi.h" #include "wifi.h"
#include "efuse.h" #include "efuse.h"
#include "pci.h"
#include <linux/export.h> #include <linux/export.h>
static const u8 MAX_PGPKT_SIZE = 9; static const u8 MAX_PGPKT_SIZE = 9;
@ -1243,3 +1244,80 @@ static u8 efuse_calculate_word_cnts(u8 word_en)
return word_cnts; return word_cnts;
} }
int rtl_get_hwinfo(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv,
int max_size, u8 *hwinfo, int *params)
{
struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
struct rtl_pci_priv *rtlpcipriv = rtl_pcipriv(hw);
struct device *dev = &rtlpcipriv->dev.pdev->dev;
u16 eeprom_id;
u16 i, usvalue;
switch (rtlefuse->epromtype) {
case EEPROM_BOOT_EFUSE:
rtl_efuse_shadow_map_update(hw);
break;
case EEPROM_93C46:
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
"RTL8XXX did not boot from eeprom, check it !!\n");
return 1;
default:
dev_warn(dev, "no efuse data\n");
return 1;
}
memcpy(hwinfo, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], max_size);
RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "MAP",
hwinfo, max_size);
eeprom_id = *((u16 *)&hwinfo[0]);
if (eeprom_id != params[0]) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
"EEPROM ID(%#x) is invalid!!\n", eeprom_id);
rtlefuse->autoload_failflag = true;
} else {
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "Autoload OK\n");
rtlefuse->autoload_failflag = false;
}
if (rtlefuse->autoload_failflag)
return 1;
rtlefuse->eeprom_vid = *(u16 *)&hwinfo[params[1]];
rtlefuse->eeprom_did = *(u16 *)&hwinfo[params[2]];
rtlefuse->eeprom_svid = *(u16 *)&hwinfo[params[3]];
rtlefuse->eeprom_smid = *(u16 *)&hwinfo[params[4]];
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROMId = 0x%4x\n", eeprom_id);
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROM VID = 0x%4x\n", rtlefuse->eeprom_vid);
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROM DID = 0x%4x\n", rtlefuse->eeprom_did);
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROM SVID = 0x%4x\n", rtlefuse->eeprom_svid);
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROM SMID = 0x%4x\n", rtlefuse->eeprom_smid);
for (i = 0; i < 6; i += 2) {
usvalue = *(u16 *)&hwinfo[params[5] + i];
*((u16 *)(&rtlefuse->dev_addr[i])) = usvalue;
}
RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "%pM\n", rtlefuse->dev_addr);
rtlefuse->eeprom_channelplan = *&hwinfo[params[6]];
rtlefuse->eeprom_version = *(u16 *)&hwinfo[params[7]];
rtlefuse->txpwr_fromeprom = true;
rtlefuse->eeprom_oemid = *&hwinfo[params[8]];
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
"EEPROM Customer ID: 0x%2x\n", rtlefuse->eeprom_oemid);
/* set channel plan to world wide 13 */
rtlefuse->channel_plan = params[9];
return 0;
}
EXPORT_SYMBOL_GPL(rtl_get_hwinfo);

2
drivers/net/wireless/realtek/rtlwifi/efuse.h
View file

@ -109,5 +109,7 @@ bool efuse_shadow_update_chk(struct ieee80211_hw *hw);
void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw); void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw);
void efuse_force_write_vendor_Id(struct ieee80211_hw *hw); void efuse_force_write_vendor_Id(struct ieee80211_hw *hw);
void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx); void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx);
int rtl_get_hwinfo(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv,
int max_size, u8 *hwinfo, int *params);
#endif #endif