rtlwifi: rtl8192ce: Add new chip revisions

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtlwifi driver.

The changes include:

1. Adding new chip revisions including new firmware.

Signed-off-by: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/rtl8192ce/def.h

@@ -142,8 +142,22 @@ enum version_8192c {
 	VERSION_UNKNOWN = 0x88,
 };
 
+#define CUT_VERSION_MASK		(BIT(6)|BIT(7))
+#define CHIP_VENDOR_UMC			BIT(5)
+#define CHIP_VENDOR_UMC_B_CUT		BIT(6) /* Chip version for ECO */
+#define IS_VENDOR_UMC_A_CUT(version)	((IS_CHIP_VENDOR_UMC(version)) ? \
+	((GET_CVID_CUT_VERSION(version)) ? false : true) : false)
 #define IS_CHIP_VER_B(version)  ((version & CHIP_VER_B) ? true : false)
+#define IS_VENDOR_UMC_A_CUT(version)	((IS_CHIP_VENDOR_UMC(version)) ? \
+	((GET_CVID_CUT_VERSION(version)) ? false : true) : false)
 #define IS_92C_SERIAL(version)  ((version & CHIP_92C_BITMASK) ? true : false)
+#define IS_CHIP_VENDOR_UMC(version)		\
+	((version & CHIP_VENDOR_UMC) ? true : false)
+#define GET_CVID_CUT_VERSION(version)	((version) & CUT_VERSION_MASK)
+#define IS_81xxC_VENDOR_UMC_B_CUT(version)		\
+	((IS_CHIP_VENDOR_UMC(version)) ? \
+	((GET_CVID_CUT_VERSION(version) == CHIP_VENDOR_UMC_B_CUT) ?	\
+	true : false) : false)
 
 enum rtl819x_loopback_e {
 	RTL819X_NO_LOOPBACK = 0,

drivers/net/wireless/rtlwifi/rtl8192ce/sw.c

@@ -92,6 +92,8 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	const struct firmware *firmware;
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	char *fw_name = NULL;
 
 	rtl8192ce_bt_reg_init(hw);
 
@@ -161,8 +163,14 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
 	}
 
 	/* request fw */
-	err = request_firmware(&firmware, rtlpriv->cfg->fw_name,
-			rtlpriv->io.dev);
+	if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
+	    !IS_92C_SERIAL(rtlhal->version))
+		fw_name = "rtlwifi/rtl8192cfwU.bin";
+	else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
+		fw_name = "rtlwifi/rtl8192cfwU_B.bin";
+	else
+		fw_name = rtlpriv->cfg->fw_name;
+	err = request_firmware(&firmware, fw_name, rtlpriv->io.dev);
 	if (err) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 			 ("Failed to request firmware!\n"));
@@ -358,6 +366,8 @@ MODULE_AUTHOR("Larry Finger	<Larry.Finger@lwfinger.net>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Realtek 8192C/8188C 802.11n PCI wireless");
 MODULE_FIRMWARE("rtlwifi/rtl8192cfw.bin");
+MODULE_FIRMWARE("rtlwifi/rtl8192cfwU.bin");
+MODULE_FIRMWARE("rtlwifi/rtl8192cfwU_B.bin");
 
 module_param_named(swenc, rtl92ce_mod_params.sw_crypto, bool, 0444);
 module_param_named(debug, rtl92ce_mod_params.debug, int, 0444);

drivers/net/wireless/rtlwifi/rtl8192cu/def.h

@@ -50,10 +50,6 @@
 #define IS_VENDOR_UMC(version)		\
 	(((version) & CHIP_VENDOR_UMC) ? true : false)
 
-#define IS_VENDOR_UMC_A_CUT(version)	\
-	(((version) & CHIP_VENDOR_UMC) ? (((version) & (BIT(6) | BIT(7))) ? \
-	false : true) : false)
-
 #define IS_VENDOR_8723_A_CUT(version)	\
 	(((version) & CHIP_VENDOR_UMC) ? (((version) & (BIT(6))) ? \
 	false : true) : false)