rtlwifi: rtl8723ae: Update driver to match 06/28/14 Realtek version

Not only does this patch update the driver to match the latest Realtek release,
it is an important step in getting the internal code source at Realtek to match
the code in the kernel. The primary reason for this is to make it easier for
Realtek to maintain the kernel source without requiring an intermediate like me.

In this process of merging the two source repositories, there are a lot
of changes in both, and this commit is rather large.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 47 insertions, 37 deletions

diff --git a/drivers/net/wireless/rtlwifi/rtl8723com/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8723com/fw_common.c
index 540278ff462b..6f35506a8fd2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723com/fw_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723com/fw_common.c
@@ -36,7 +36,8 @@ void rtl8723_enable_fw_download(struct ieee80211_hw *hw, bool enable)
 
 	if (enable) {
 		tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
-		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, tmp | 0x04);
+		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+			       tmp | 0x04);
 
 		tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL);
 		rtl_write_byte(rtlpriv, REG_MCUFWDL, tmp | 0x01);
@@ -95,7 +96,7 @@ void rtl8723_fw_page_write(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL_GPL(rtl8723_fw_page_write);
 
-static void rtl8723_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
+void rtl8723_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
 {
 	u32 fwlen = *pfwlen;
 	u8 remain = (u8) (fwlen % 4);
@@ -109,60 +110,64 @@ static void rtl8723_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
 	}
 	*pfwlen = fwlen;
 }
+EXPORT_SYMBOL(rtl8723_fill_dummy);
 
 void rtl8723_write_fw(struct ieee80211_hw *hw,
 		      enum version_8723e version,
-		      u8 *buffer, u32 size)
+		      u8 *buffer, u32 size, u8 max_page)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	u8 *bufferptr = buffer;
-	u32 pagenums, remainsize;
+	u32 page_nums, remain_size;
 	u32 page, offset;
 
-	RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "FW size is %d bytes,\n", size);
+	RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW size is %d bytes,\n", size);
 
 	rtl8723_fill_dummy(bufferptr, &size);
 
-	pagenums = size / FW_8192C_PAGE_SIZE;
-	remainsize = size % FW_8192C_PAGE_SIZE;
+	page_nums = size / FW_8192C_PAGE_SIZE;
+	remain_size = size % FW_8192C_PAGE_SIZE;
 
-	if (pagenums > 8) {
+	if (page_nums > max_page) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-			 "Page numbers should not greater then 8\n");
+			 "Page numbers should not greater than %d\n", max_page);
 	}
-	for (page = 0; page < pagenums; page++) {
+	for (page = 0; page < page_nums; page++) {
 		offset = page * FW_8192C_PAGE_SIZE;
 		rtl8723_fw_page_write(hw, page, (bufferptr + offset),
 				      FW_8192C_PAGE_SIZE);
 	}
-	if (remainsize) {
-		offset = pagenums * FW_8192C_PAGE_SIZE;
-		page = pagenums;
+
+	if (remain_size) {
+		offset = page_nums * FW_8192C_PAGE_SIZE;
+		page = page_nums;
 		rtl8723_fw_page_write(hw, page, (bufferptr + offset),
-				      remainsize);
+				      remain_size);
 	}
+	RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW write done.\n");
 }
 EXPORT_SYMBOL_GPL(rtl8723_write_fw);
 
 void rtl8723ae_firmware_selfreset(struct ieee80211_hw *hw)
 {
-	u8 u1tmp;
+	u8 u1b_tmp;
 	u8 delay = 100;
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	rtl_write_byte(rtlpriv, REG_HMETFR + 3, 0x20);
-	u1tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
 
-	while (u1tmp & BIT(2)) {
+	while (u1b_tmp & BIT(2)) {
 		delay--;
 		if (delay == 0)
 			break;
 		udelay(50);
-		u1tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+		u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
 	}
 	if (delay == 0) {
-		u1tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
-		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, u1tmp&(~BIT(2)));
+		u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+			       u1b_tmp&(~BIT(2)));
 	}
 }
 EXPORT_SYMBOL_GPL(rtl8723ae_firmware_selfreset);
@@ -190,7 +195,8 @@ void rtl8723be_firmware_selfreset(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL_GPL(rtl8723be_firmware_selfreset);
 
-int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be)
+int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be,
+			  int max_count)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	int err = -EIO;
@@ -199,10 +205,10 @@ int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be)
 
 	do {
 		value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
-	} while ((counter++ < FW_8192C_POLLING_TIMEOUT_COUNT) &&
+	} while ((counter++ < max_count) &&
 		 (!(value32 & FWDL_CHKSUM_RPT)));
 
-	if (counter >= FW_8192C_POLLING_TIMEOUT_COUNT) {
+	if (counter >= max_count) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 			 "chksum report fail ! REG_MCUFWDL:0x%08x .\n",
 			 value32);
@@ -223,15 +229,15 @@ int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be)
 		value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
 		if (value32 & WINTINI_RDY) {
 			RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
-				 "Polling FW ready success!! "
-				 "REG_MCUFWDL:0x%08x .\n",
+				 "Polling FW ready success!! REG_MCUFWDL:0x%08x .\n",
 				 value32);
 			err = 0;
 			goto exit;
 		}
-		udelay(FW_8192C_POLLING_DELAY);
 
-	} while (counter++ < FW_8192C_POLLING_TIMEOUT_COUNT);
+		mdelay(FW_8192C_POLLING_DELAY);
+
+	} while (counter++ < max_count);
 
 	RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 		 "Polling FW ready fail!! REG_MCUFWDL:0x%08x .\n",
@@ -243,25 +249,28 @@ exit:
 EXPORT_SYMBOL_GPL(rtl8723_fw_free_to_go);
 
 int rtl8723_download_fw(struct ieee80211_hw *hw,
-			bool is_8723be)
+			bool is_8723be, int max_count)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct rtl92c_firmware_header *pfwheader;
+	struct rtl8723e_firmware_header *pfwheader;
 	u8 *pfwdata;
 	u32 fwsize;
 	int err;
 	enum version_8723e version = rtlhal->version;
+	int max_page;
 
 	if (!rtlhal->pfirmware)
 		return 1;
 
-	pfwheader = (struct rtl92c_firmware_header *)rtlhal->pfirmware;
+	pfwheader = (struct rtl8723e_firmware_header *)rtlhal->pfirmware;
 	pfwdata = rtlhal->pfirmware;
 	fwsize = rtlhal->fwsize;
-	RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG,
-		 "normal Firmware SIZE %d\n", fwsize);
 
+	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8723AE)
+		max_page = 6;
+	else
+		max_page = 8;
 	if (rtlpriv->cfg->ops->is_fw_header(pfwheader)) {
 		RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
 			 "Firmware Version(%d), Signature(%#x), Size(%d)\n",
@@ -271,23 +280,24 @@ int rtl8723_download_fw(struct ieee80211_hw *hw,
 		pfwdata = pfwdata + sizeof(struct rtl92c_firmware_header);
 		fwsize = fwsize - sizeof(struct rtl92c_firmware_header);
 	}
-	if (rtl_read_byte(rtlpriv, REG_MCUFWDL) & BIT(7)) {
-		rtl_write_byte(rtlpriv, REG_MCUFWDL, 0);
+
+	if (rtl_read_byte(rtlpriv, REG_MCUFWDL)&BIT(7)) {
 		if (is_8723be)
 			rtl8723be_firmware_selfreset(hw);
 		else
 			rtl8723ae_firmware_selfreset(hw);
+		rtl_write_byte(rtlpriv, REG_MCUFWDL, 0x00);
 	}
 	rtl8723_enable_fw_download(hw, true);
-	rtl8723_write_fw(hw, version, pfwdata, fwsize);
+	rtl8723_write_fw(hw, version, pfwdata, fwsize, max_page);
 	rtl8723_enable_fw_download(hw, false);
 
-	err = rtl8723_fw_free_to_go(hw, is_8723be);
+	err = rtl8723_fw_free_to_go(hw, is_8723be, max_count);
 	if (err) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 			 "Firmware is not ready to run!\n");
 	} else {
-		RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
+		RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
 			 "Firmware is ready to run!\n");
 	}
 	return 0;