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From c18d8f5095715c56bb3cd9cba64242542632054b Mon Sep 17 00:00:00 2001
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From: Larry Finger <Larry.Finger@lwfinger.net>
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Date: Wed, 16 Mar 2016 13:33:34 -0500
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Subject: rtlwifi: rtl8723be: Add antenna select module parameter
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A number of new laptops have been delivered with only a single antenna.
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In principle, this is OK; however, a problem arises when the on-board
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EEPROM is programmed to use the other antenna connection. The option
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of opening the computer and moving the connector is not always possible
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as it will void the warranty in some cases. In addition, this solution
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breaks the Windows driver when the box dual boots Linux and Windows.
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A fix involving a new module parameter has been developed. This commit
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adds the new parameter and implements the changes needed for the driver.
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Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
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Cc: Stable <stable@vger.kernel.org> [V4.0+]
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c | 5 +++++
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drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c | 3 +++
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drivers/net/wireless/realtek/rtlwifi/wifi.h | 3 +++
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3 files changed, 11 insertions(+)
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diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
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index c983d2f..5a3df91 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
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@@ -2684,6 +2684,7 @@ void rtl8723be_read_bt_coexist_info_from_hwpg(struct ieee80211_hw *hw,
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bool auto_load_fail, u8 *hwinfo)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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+ struct rtl_mod_params *mod_params = rtlpriv->cfg->mod_params;
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u8 value;
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u32 tmpu_32;
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@@ -2702,6 +2703,10 @@ void rtl8723be_read_bt_coexist_info_from_hwpg(struct ieee80211_hw *hw,
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rtlpriv->btcoexist.btc_info.ant_num = ANT_X2;
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}
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+ /* override ant_num / ant_path */
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+ if (mod_params->ant_sel)
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+ rtlpriv->btcoexist.btc_info.ant_num =
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+ (mod_params->ant_sel == 1 ? ANT_X2 : ANT_X1);
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}
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void rtl8723be_bt_reg_init(struct ieee80211_hw *hw)
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diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
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index a78eaed..2101793 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
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@@ -273,6 +273,7 @@ static struct rtl_mod_params rtl8723be_mod_params = {
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.msi_support = false,
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.disable_watchdog = false,
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.debug = DBG_EMERG,
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+ .ant_sel = 0,
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};
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static struct rtl_hal_cfg rtl8723be_hal_cfg = {
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@@ -394,6 +395,7 @@ module_param_named(fwlps, rtl8723be_mod_params.fwctrl_lps, bool, 0444);
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module_param_named(msi, rtl8723be_mod_params.msi_support, bool, 0444);
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module_param_named(disable_watchdog, rtl8723be_mod_params.disable_watchdog,
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bool, 0444);
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+module_param_named(ant_sel, rtl8723be_mod_params.ant_sel, int, 0444);
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MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n");
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MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n");
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MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n");
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@@ -402,6 +404,7 @@ MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n");
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MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
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MODULE_PARM_DESC(disable_watchdog,
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"Set to 1 to disable the watchdog (default 0)\n");
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+MODULE_PARM_DESC(ant_sel, "Set to 1 or 2 to force antenna number (default 0)\n");
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static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
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diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
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index 554d814..93bd7fc 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
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+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
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@@ -2246,6 +2246,9 @@ struct rtl_mod_params {
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/* default 0: 1 means do not disable interrupts */
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bool int_clear;
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+
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+ /* select antenna */
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+ int ant_sel;
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};
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struct rtl_hal_usbint_cfg {
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--
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cgit v0.12
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From baa1702290953295e421f0f433e2b1ff4815827c Mon Sep 17 00:00:00 2001
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From: Larry Finger <Larry.Finger@lwfinger.net>
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Date: Wed, 16 Mar 2016 13:33:35 -0500
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Subject: rtlwifi: btcoexist: Implement antenna selection
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The previous patch added an option to rtl8723be to manually select the
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antenna for those cases when only a single antenna is present, and the
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on-board EEPROM is incorrectly programmed. This patch implements the
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necessary changes in the Bluetooth coexistence driver.
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Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
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Cc: Stable <stable@vger.kernel.org> [V4.0+]
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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.../realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 9 ++++++--
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.../realtek/rtlwifi/btcoexist/halbtcoutsrc.c | 27 +++++++++++++++++++++-
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.../realtek/rtlwifi/btcoexist/halbtcoutsrc.h | 2 +-
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.../wireless/realtek/rtlwifi/btcoexist/rtl_btc.c | 5 +++-
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4 files changed, 38 insertions(+), 5 deletions(-)
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diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
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index c43ab59..77cbd10 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
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@@ -1203,7 +1203,6 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
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/* Force GNT_BT to low */
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btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x0);
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- btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
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if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT) {
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/* tell firmware "no antenna inverse" */
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@@ -1211,19 +1210,25 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
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h2c_parameter[1] = 1; /* ext switch type */
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btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
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h2c_parameter);
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+ btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
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} else {
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/* tell firmware "antenna inverse" */
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h2c_parameter[0] = 1;
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h2c_parameter[1] = 1; /* ext switch type */
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btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
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h2c_parameter);
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+ btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
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}
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}
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/* ext switch setting */
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if (use_ext_switch) {
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/* fixed internal switch S1->WiFi, S0->BT */
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- btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
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+ if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
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+ btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
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+ else
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+ btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
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+
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switch (antpos_type) {
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case BTC_ANT_WIFI_AT_MAIN:
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/* ext switch main at wifi */
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diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
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index b2791c8..babd149 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
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@@ -965,13 +965,38 @@ void exhalbtc_set_chip_type(u8 chip_type)
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}
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}
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-void exhalbtc_set_ant_num(u8 type, u8 ant_num)
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+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num)
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{
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if (BT_COEX_ANT_TYPE_PG == type) {
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gl_bt_coexist.board_info.pg_ant_num = ant_num;
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gl_bt_coexist.board_info.btdm_ant_num = ant_num;
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+ /* The antenna position:
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+ * Main (default) or Aux for pgAntNum=2 && btdmAntNum =1.
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+ * The antenna position should be determined by
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+ * auto-detect mechanism.
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+ * The following is assumed to main,
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+ * and those must be modified
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+ * if y auto-detect mechanism is ready
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+ */
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+ if ((gl_bt_coexist.board_info.pg_ant_num == 2) &&
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+ (gl_bt_coexist.board_info.btdm_ant_num == 1))
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+ gl_bt_coexist.board_info.btdm_ant_pos =
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+ BTC_ANTENNA_AT_MAIN_PORT;
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+ else
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+ gl_bt_coexist.board_info.btdm_ant_pos =
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+ BTC_ANTENNA_AT_MAIN_PORT;
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} else if (BT_COEX_ANT_TYPE_ANTDIV == type) {
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gl_bt_coexist.board_info.btdm_ant_num = ant_num;
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+ gl_bt_coexist.board_info.btdm_ant_pos =
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+ BTC_ANTENNA_AT_MAIN_PORT;
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+ } else if (type == BT_COEX_ANT_TYPE_DETECTED) {
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+ gl_bt_coexist.board_info.btdm_ant_num = ant_num;
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+ if (rtlpriv->cfg->mod_params->ant_sel == 1)
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+ gl_bt_coexist.board_info.btdm_ant_pos =
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+ BTC_ANTENNA_AT_AUX_PORT;
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+ else
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+ gl_bt_coexist.board_info.btdm_ant_pos =
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+ BTC_ANTENNA_AT_MAIN_PORT;
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}
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}
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diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h
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index 0a903ea..f41ca57 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h
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+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.h
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@@ -535,7 +535,7 @@ void exhalbtc_set_bt_patch_version(u16 bt_hci_version, u16 bt_patch_version);
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void exhalbtc_update_min_bt_rssi(char bt_rssi);
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void exhalbtc_set_bt_exist(bool bt_exist);
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void exhalbtc_set_chip_type(u8 chip_type);
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-void exhalbtc_set_ant_num(u8 type, u8 ant_num);
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+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num);
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void exhalbtc_display_bt_coex_info(struct btc_coexist *btcoexist);
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void exhalbtc_signal_compensation(struct btc_coexist *btcoexist,
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u8 *rssi_wifi, u8 *rssi_bt);
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diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c
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index b9b0cb7..d3fd921 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/rtl_btc.c
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@@ -72,7 +72,10 @@ void rtl_btc_init_hal_vars(struct rtl_priv *rtlpriv)
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__func__, bt_type);
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exhalbtc_set_chip_type(bt_type);
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- exhalbtc_set_ant_num(BT_COEX_ANT_TYPE_PG, ant_num);
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+ if (rtlpriv->cfg->mod_params->ant_sel == 1)
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+ exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_DETECTED, 1);
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+ else
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+ exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_PG, ant_num);
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}
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59c5151 |
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59c5151 |
void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
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59c5151 |
--
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59c5151 |
cgit v0.12
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59c5151 |
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