rtl8xxxu: add support for rtl8188eu

Patches by Jes Sorensen:
https://git.kernel.org/cgit/linux/kernel/git/jes/linux.git/

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/652-0048-rtl8xxxu-Do-not-set-auto-rate-fallback-on-8188eu.patch b/package/kernel/mac80211/patches/652-0048-rtl8xxxu-Do-not-set-auto-rate-fallback-on-8188eu.patch
new file mode 100644
index 0000000000..76023f9358
--- /dev/null
+++ b/package/kernel/mac80211/patches/652-0048-rtl8xxxu-Do-not-set-auto-rate-fallback-on-8188eu.patch
@@ -0,0 +1,93 @@
+From 4bc5ab6c3655cead3401c85e9dd174c7453c94eb Mon Sep 17 00:00:00 2001
+From: Jes Sorensen <Jes.Sorensen@redhat.com>
+Date: Wed, 24 Aug 2016 13:54:00 -0400
+Subject: [PATCH] rtl8xxxu: Do not set auto rate fallback on 8188eu
+
+Introduce a fileops flag to indicate whether the device has this
+feature.
+
+Reported-by: Taehee Yoo <ap420073@gmail.com>
+Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
+---
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h       |  1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c |  1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c |  1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c |  1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c |  1 +
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c  | 15 ++++++++++-----
+ 6 files changed, 15 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+@@ -1396,6 +1396,7 @@ struct rtl8xxxu_fileops {
+ 	u8 has_s0s1:1;
+ 	u8 has_tx_report:1;
+ 	u8 gen2_thermal_meter:1;
++	u8 has_darfrc:1;
+ 	u32 adda_1t_init;
+ 	u32 adda_1t_path_on;
+ 	u32 adda_2t_path_on_a;
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c
+@@ -572,6 +572,7 @@ struct rtl8xxxu_fileops rtl8192cu_fops =
+ 	.rx_agg_buf_size = 16000,
+ 	.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
+ 	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
++	.has_darfrc = 1,
+ 	.adda_1t_init = 0x0b1b25a0,
+ 	.adda_1t_path_on = 0x0bdb25a0,
+ 	.adda_2t_path_on_a = 0x04db25a4,
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+@@ -1649,6 +1649,7 @@ struct rtl8xxxu_fileops rtl8192eu_fops =
+ 	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc24),
+ 	.has_s0s1 = 0,
+ 	.gen2_thermal_meter = 1,
++	.has_darfrc = 1,
+ 	.adda_1t_init = 0x0fc01616,
+ 	.adda_1t_path_on = 0x0fc01616,
+ 	.adda_2t_path_on_a = 0x0fc01616,
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c
+@@ -389,6 +389,7 @@ struct rtl8xxxu_fileops rtl8723au_fops =
+ 	.rx_agg_buf_size = 16000,
+ 	.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
+ 	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
++	.has_darfrc = 1,
+ 	.adda_1t_init = 0x0b1b25a0,
+ 	.adda_1t_path_on = 0x0bdb25a0,
+ 	.adda_2t_path_on_a = 0x04db25a4,
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
+@@ -1669,6 +1669,7 @@ struct rtl8xxxu_fileops rtl8723bu_fops =
+ 	.has_s0s1 = 1,
+ 	.has_tx_report = 1,
+ 	.gen2_thermal_meter = 1,
++	.has_darfrc = 1,
+ 	.adda_1t_init = 0x01c00014,
+ 	.adda_1t_path_on = 0x01c00014,
+ 	.adda_2t_path_on_a = 0x01c00014,
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+@@ -4104,11 +4104,16 @@ static int rtl8xxxu_init_device(struct i
+ 	rtl8xxxu_write32(priv, REG_EDCA_VI_PARAM, 0x005ea324);
+ 	rtl8xxxu_write32(priv, REG_EDCA_VO_PARAM, 0x002fa226);
+ 
+-	/* Set data auto rate fallback retry count */
+-	rtl8xxxu_write32(priv, REG_DARFRC, 0x00000000);
+-	rtl8xxxu_write32(priv, REG_DARFRC + 4, 0x10080404);
+-	rtl8xxxu_write32(priv, REG_RARFRC, 0x04030201);
+-	rtl8xxxu_write32(priv, REG_RARFRC + 4, 0x08070605);
++	/*
++	 * Set data auto rate fallback retry count.
++	 * Notably the 8188eu doesn't seem to use this
++	 */
++	if (priv->fops->has_darfrc) {
++		rtl8xxxu_write32(priv, REG_DARFRC, 0x00000000);
++		rtl8xxxu_write32(priv, REG_DARFRC + 4, 0x10080404);
++		rtl8xxxu_write32(priv, REG_RARFRC, 0x04030201);
++		rtl8xxxu_write32(priv, REG_RARFRC + 4, 0x08070605);
++	}
+ 
+ 	val8 = rtl8xxxu_read8(priv, REG_FWHW_TXQ_CTRL);
+ 	val8 |= FWHW_TXQ_CTRL_AMPDU_RETRY;