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Re: [PATCH NEXT V2] rtlwifi: rtl8192c: rtl8192ce: Add support for B-CUT version of RTL8188CE

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On 09/18/2012 09:09 AM, Anisse Astier wrote:

On Mon, 17 Sep 2012 15:35:43 -0500, Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote :


Realtek devices with designation RTL8188CE-VL have the so-called B-cut
of the wireless chip. This patch adds the special programming needed by
these devices.

Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Cc: Anisse Astier <anisse@xxxxxxxxx>
Cc: Li Chaoming <chaoming_li@xxxxxxxxxxxxxx>
---
  drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c |   21 +++++++
  drivers/net/wireless/rtlwifi/rtl8192ce/def.h       |    3 +
  drivers/net/wireless/rtlwifi/rtl8192ce/hw.c        |   61 ++++++++++++++++++--
  drivers/net/wireless/rtlwifi/rtl8192ce/phy.c       |    4 +-
  drivers/net/wireless/rtlwifi/rtl8192ce/sw.c        |    6 +-
  drivers/net/wireless/rtlwifi/rtl8192ce/trx.c       |    4 +-
  6 files changed, 87 insertions(+), 12 deletions(-)
---
V1 => V2	Remove extraneous white space.


John,

This patch is too invasive to backport to the stable kernels, thus it should
be applied to 3.7.

Thanks,

Larry
---



[snip]


Index: wireless-testing-new/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
===================================================================
--- wireless-testing-new.orig/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
+++ wireless-testing-new/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
@@ -896,7 +896,6 @@ int rtl92ce_hw_init(struct ieee80211_hw
  	struct rtl_phy *rtlphy = &(rtlpriv->phy);
  	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
  	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
-	static bool iqk_initialized; /* initialized to false */
  	bool rtstatus = true;
  	bool is92c;
  	int err;
@@ -921,9 +920,28 @@ int rtl92ce_hw_init(struct ieee80211_hw

  	rtlhal->last_hmeboxnum = 0;
  	rtl92c_phy_mac_config(hw);
+	/* because last function modify RCR, so we update
+	 * rcr var here, or TP will unstable for receive_config
+	 * is wrong, RX RCR_ACRC32 will cause TP unstabel & Rx
+	 * RCR_APP_ICV will cause mac80211 unassoc for cisco 1252*/
+	rtlpci->receive_config = rtl_read_dword(rtlpriv, REG_RCR);
+	rtlpci->receive_config &= ~(RCR_ACRC32 | RCR_AICV);
+	rtl_write_dword(rtlpriv, REG_RCR, rtlpci->receive_config);
  	rtl92c_phy_bb_config(hw);
  	rtlphy->rf_mode = RF_OP_BY_SW_3WIRE;
  	rtl92c_phy_rf_config(hw);
+	if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
+	    !IS_92C_SERIAL(rtlhal->version)) {
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_RX_G1, MASKDWORD, 0x30255);
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_RX_G2, MASKDWORD, 0x50a00);
+	} else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version)) {
+		rtl_set_rfreg(hw, RF90_PATH_A, 0x0C, MASKDWORD, 0x894AE);
+		rtl_set_rfreg(hw, RF90_PATH_A, 0x0A, MASKDWORD, 0x1AF31);
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_IPA, MASKDWORD, 0x8F425);
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_SYN_G2, MASKDWORD, 0x4F200);
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_RCK1, MASKDWORD, 0x44053);
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_RCK2, MASKDWORD, 0x80201);
+	}
  	rtlphy->rfreg_chnlval[0] = rtl_get_rfreg(hw, (enum radio_path)0,
  						 RF_CHNLBW, RFREG_OFFSET_MASK);
  	rtlphy->rfreg_chnlval[1] = rtl_get_rfreg(hw, (enum radio_path)1,
@@ -945,11 +963,11 @@ int rtl92ce_hw_init(struct ieee80211_hw

  	if (ppsc->rfpwr_state == ERFON) {
  		rtl92c_phy_set_rfpath_switch(hw, 1);
-		if (iqk_initialized) {
+		if (rtlphy->iqk_initialized) {
  			rtl92c_phy_iq_calibrate(hw, true);
  		} else {
  			rtl92c_phy_iq_calibrate(hw, false);
-			iqk_initialized = true;
+			rtlphy->iqk_initialized = true;
  		}

  		rtl92c_dm_check_txpower_tracking(hw);
@@ -1004,6 +1022,13 @@ static enum version_8192c _rtl92ce_read_
  				   ? CHIP_VENDOR_UMC_B_CUT : CHIP_UNKNOWN) |
  				   CHIP_VENDOR_UMC));
  		}
+		if (IS_92C_SERIAL(version)) {
+			value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM);
+			version = (enum version_8192c)(version |
+				   ((CHIP_BONDING_IDENTIFIER(value32)
+				   == CHIP_BONDING_92C_1T2R) ?
+				   RF_TYPE_1T2R : 0));
+		}
  	}

  	switch (version) {
@@ -1019,12 +1044,30 @@ static enum version_8192c _rtl92ce_read_
  	case VERSION_A_CHIP_88C:
  		versionid = "A_CHIP_88C";
  		break;
+	case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
+		versionid = "A_CUT_92C_1T2R";
+		break;
+	case VERSION_NORMAL_UMC_CHIP_92C_A_CUT:
+		versionid = "A_CUT_92C";
+		break;
+	case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
+		versionid = "A_CUT_88C";
+		break;
+	case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
+		versionid = "B_CUT_92C_1T2R";
+		break;
+	case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
+		versionid = "B_CUT_92C";
+		break;
+	case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
+		versionid = "B_CUT_88C";
+		break;
  	default:
  		versionid = "Unknown. Bug?";
  		break;
  	}

-	RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
+	RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
  		 "Chip Version ID: %s\n", versionid);

  	switch (version & 0x3) {
@@ -1197,6 +1240,7 @@ static void _rtl92ce_poweroff_adapter(st
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	struct rtl_pci_priv *rtlpcipriv = rtl_pcipriv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
  	u8 u1b_tmp;
  	u32 u4b_tmp;

@@ -1225,7 +1269,8 @@ static void _rtl92ce_poweroff_adapter(st
  	rtl_write_word(rtlpriv, REG_GPIO_IO_SEL, 0x0790);
  	rtl_write_word(rtlpriv, REG_LEDCFG0, 0x8080);
  	rtl_write_byte(rtlpriv, REG_AFE_PLL_CTRL, 0x80);
-	rtl_write_byte(rtlpriv, REG_SPS0_CTRL, 0x23);
+	if (!IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
+		rtl_write_byte(rtlpriv, REG_SPS0_CTRL, 0x23);
  	if (rtlpcipriv->bt_coexist.bt_coexistence) {
  		u4b_tmp = rtl_read_dword(rtlpriv, REG_AFE_XTAL_CTRL);
  		u4b_tmp |= 0x03824800;
@@ -1254,6 +1299,9 @@ void rtl92ce_card_disable(struct ieee802
  		rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
  	RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
  	_rtl92ce_poweroff_adapter(hw);
+
+	/* after power off we should do iqk again */
+	rtlpriv->phy.iqk_initialized = false;
  }

  void rtl92ce_interrupt_recognized(struct ieee80211_hw *hw,


This part:

@@ -1355,9 +1403,9 @@ static void _rtl92ce_read_txpower_info_f
  			tempval = hwinfo[EEPROM_TXPOWERHT40_2SDIFF + i];
  		else
  			tempval = EEPROM_DEFAULT_HT40_2SDIFF;
-		rtlefuse->eeprom_chnlarea_txpwr_ht40_2sdiif[RF90_PATH_A][i] =
+		rtlefuse->eprom_chnl_txpwr_ht40_2sdf[RF90_PATH_A][i] =
  		    (tempval & 0xf);
-		rtlefuse->eeprom_chnlarea_txpwr_ht40_2sdiif[RF90_PATH_B][i] =
+		rtlefuse->eprom_chnl_txpwr_ht40_2sdf[RF90_PATH_B][i] =
  		    ((tempval & 0xf0) >> 4);
  	}

@@ -1381,7 +1429,7 @@ static void _rtl92ce_read_txpower_info_f
  				"RF(%d) EEPROM HT40 2S Diff Area(%d) = 0x%x\n",
  				rf_path, i,
  				rtlefuse->
-				eeprom_chnlarea_txpwr_ht40_2sdiif[rf_path][i]);
+				eprom_chnl_txpwr_ht40_2sdf[rf_path][i]);

  	for (rf_path = 0; rf_path < 2; rf_path++) {
  		for (i = 0; i < 14; i++) {
@@ -1396,14 +1444,14 @@ static void _rtl92ce_read_txpower_info_f
  			if ((rtlefuse->
  			     eeprom_chnlarea_txpwr_ht40_1s[rf_path][index] -
  			     rtlefuse->
-			     eeprom_chnlarea_txpwr_ht40_2sdiif[rf_path][index])
+			     eprom_chnl_txpwr_ht40_2sdf[rf_path][index])
  			    > 0) {
  				rtlefuse->txpwrlevel_ht40_2s[rf_path][i] =
  				    rtlefuse->
  				    eeprom_chnlarea_txpwr_ht40_1s[rf_path]
  				    [index] -
  				    rtlefuse->
-				    eeprom_chnlarea_txpwr_ht40_2sdiif[rf_path]
+				    eprom_chnl_txpwr_ht40_2sdf[rf_path]
  				    [index];
  			} else {
  				rtlefuse->txpwrlevel_ht40_2s[rf_path][i] = 0;


wasn't in V1 of the patch. Is the rename normal?
The original length of the variable name was causing extreme difficulty in keeping all lines to 80 characters in the code for the new driver for the RTL8723AE device. The renaming helped. You are correct that the change should be documented. 

Larry

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