Datel XBox 360 adapter

[Tobias Diedrich]

Hi,

while looking for a AR7010-based wlan adapter I bought a used Datel
XBox 360 adapter on ebay.

Interestingly compared to the pictures on
https://wikidevi.com/wiki/Datel_Wireless_%27N%27_Networking_Adapter_For_Xbox_360
mine doesn't have the raw//science XB102 chip (which seems to be
connected to what I'd guess are the jtag pins?).

I've got it to work with a minor hacky patch (the eeprom data is
stored at the end of the SPI flash instead of the EEPROM which is
populated, but empty (all 0s)):

usb 1-3.4.3: New USB device found, idVendor=045e, idProduct=02a8
usb 1-3.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-3.4.3: Product: Wireless Network Adapter Boot
usb 1-3.4.3: Manufacturer: Microsoft Corporation
usb 1-3.4.3: SerialNumber: <redacted>
usb 1-3.4.3: ath9k_htc: Firmware ath9k_htc/htc_7010-1.4.0.fw requested
usbcore: registered new interface driver ath9k_htc
usb 1-3.4.3: ath9k_htc: Transferred FW: ath9k_htc/htc_7010-1.4.0.fw, size: 72812
ath9k_htc 1-3.4.3:1.0: ath9k_htc: HTC initialized with 45 credits
ath9k_htc 1-3.4.3:1.0: ath9k_htc: FW Version: 1.4
ath9k_htc 1-3.4.3:1.0: FW RMW support: On
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ieee80211 phy29: Atheros AR9280 Rev:2
ath9k_htc 1-3.4.3:1.0 wlx0<redacted>: renamed from wlan0


The 512KiB SPI flash (Winbond W25X40) is memory-mapped at 0xf000000 in the
Xtensa address space, with two identical copies of the wifi EEPROM data at the
very end of the flash at offset 0x7e000 and 0x7f000.

Any suggestions on how to hook this up more properly instead of this hack?

Hacky patch to read the ath9k eeprom data from the memory-mapped PSI flash instead of the actual EEPROM:

--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -57,6 +57,8 @@ static struct usb_device_id ath9k_hif_us
 	  .driver_info = AR9280_USB },
 	{ USB_DEVICE(0x0930, 0x0a08),
 	  .driver_info = AR9280_USB },  /* Toshiba WLM-20U2 and GN-1080 */
+	{ USB_DEVICE(0x045e, 0x02a8),
+	  .driver_info = AR9280_USB },  /* Datel Xbox 360 */
 
 	{ USB_DEVICE(0x0cf3, 0x20ff),
 	  .driver_info = STORAGE_DEVICE },
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -522,6 +522,22 @@ static bool ath_usb_eeprom_read(struct a
 {
 	struct ath_hw *ah = (struct ath_hw *) common->ah;
 
+	u32 magic = REG_READ(ah, 0xf07f000);
+	if (magic == 0x00005aa5 || magic == 0x5aa50000) {
+		u32 offset = (off << 1) & ~3;
+		u32 word = be32_to_cpu(REG_READ(ah, 0xf07f000 + offset));
+		u16 x;
+		if (off & 1) {
+			x = word;
+		} else {
+			x = word >> 16;
+		}
+		*data = x;
+		return true;
+	} else {
+		ath_info(common, "Magic=%08x\n", magic);
+	}
+
 	(void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
 
 	if (!ath9k_hw_wait(ah,
--- a/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -84,6 +84,14 @@ void ath9k_hw_usb_gen_fill_eeprom(struct
 	u32 addrdata[8];
 	u32 data[8];
 
+#if 1
+	for (addr = 0; addr < size; addr++) {
+		if (!ath9k_hw_nvram_read(ah, addr + eep_start_loc, eep_data))
+			return;
+		eep_data++;
+	}
+
+#else
 	for (addr = 0; addr < size; addr++) {
 		addrdata[i] = AR5416_EEPROM_OFFSET +
 			((addr + eep_start_loc) << AR5416_EEPROM_S);
@@ -107,6 +115,7 @@ void ath9k_hw_usb_gen_fill_eeprom(struct
 			eep_data++;
 		}
 	}
+#endif
 }
 
 static bool ath9k_hw_nvram_read_array(u16 *blob, size_t blob_size,



-- 
Tobias						PGP: http://8ef7ddba.uguu.de