package/kernel/mac80211/patches/653-0043-rtl8xxxu-Do-not-set-auto-rate-fallback-on-8188eu.patch

   1 From 738832d9e91098f5b3ddb4e71fe8e666575c6bdb Mon Sep 17 00:00:00 2001
   2 From: Jes Sorensen <Jes.Sorensen@redhat.com>
   3 Date: Wed, 24 Aug 2016 13:54:00 -0400
   4 Subject: [PATCH] rtl8xxxu: Do not set auto rate fallback on 8188eu
   5
   6 Introduce a fileops flag to indicate whether the device has this
   7 feature.
   8
   9 Reported-by: Taehee Yoo <ap420073@gmail.com>
  10 Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
  11 ---
  12  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h       |  1 +
  13  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c |  1 +
  14  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c |  1 +
  15  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c |  1 +
  16  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c |  1 +
  17  drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c  | 15 ++++++++++-----
  18  6 files changed, 15 insertions(+), 5 deletions(-)
  19
  20 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
  21 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
  22 @@ -1398,6 +1398,7 @@ struct rtl8xxxu_fileops {
  23         u8 has_s0s1:1;
  24         u8 has_tx_report:1;
  25         u8 gen2_thermal_meter:1;
  26 +       u8 has_darfrc:1;
  27         u32 adda_1t_init;
  28         u32 adda_1t_path_on;
  29         u32 adda_2t_path_on_a;
  30 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c
  31 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c
  32 @@ -572,6 +572,7 @@ struct rtl8xxxu_fileops rtl8192cu_fops =
  33         .rx_agg_buf_size = 16000,
  34         .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
  35         .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
  36 +       .has_darfrc = 1,
  37         .adda_1t_init = 0x0b1b25a0,
  38         .adda_1t_path_on = 0x0bdb25a0,
  39         .adda_2t_path_on_a = 0x04db25a4,
  40 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
  41 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
  42 @@ -1655,6 +1655,7 @@ struct rtl8xxxu_fileops rtl8192eu_fops =
  43         .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc24),
  44         .has_s0s1 = 0,
  45         .gen2_thermal_meter = 1,
  46 +       .has_darfrc = 1,
  47         .adda_1t_init = 0x0fc01616,
  48         .adda_1t_path_on = 0x0fc01616,
  49         .adda_2t_path_on_a = 0x0fc01616,
  50 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c
  51 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c
  52 @@ -389,6 +389,7 @@ struct rtl8xxxu_fileops rtl8723au_fops =
  53         .rx_agg_buf_size = 16000,
  54         .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
  55         .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
  56 +       .has_darfrc = 1,
  57         .adda_1t_init = 0x0b1b25a0,
  58         .adda_1t_path_on = 0x0bdb25a0,
  59         .adda_2t_path_on_a = 0x04db25a4,
  60 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
  61 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c
  62 @@ -1673,6 +1673,7 @@ struct rtl8xxxu_fileops rtl8723bu_fops =
  63         .has_s0s1 = 1,
  64         .has_tx_report = 1,
  65         .gen2_thermal_meter = 1,
  66 +       .has_darfrc = 1,
  67         .adda_1t_init = 0x01c00014,
  68         .adda_1t_path_on = 0x01c00014,
  69         .adda_2t_path_on_a = 0x01c00014,
  70 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
  71 +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
  72 @@ -4105,11 +4105,16 @@ static int rtl8xxxu_init_device(struct i
  73         rtl8xxxu_write32(priv, REG_EDCA_VI_PARAM, 0x005ea324);
  74         rtl8xxxu_write32(priv, REG_EDCA_VO_PARAM, 0x002fa226);
  75
  76 -       /* Set data auto rate fallback retry count */
  77 -       rtl8xxxu_write32(priv, REG_DARFRC, 0x00000000);
  78 -       rtl8xxxu_write32(priv, REG_DARFRC + 4, 0x10080404);
  79 -       rtl8xxxu_write32(priv, REG_RARFRC, 0x04030201);
  80 -       rtl8xxxu_write32(priv, REG_RARFRC + 4, 0x08070605);
  81 +       /*
  82 +        * Set data auto rate fallback retry count.
  83 +        * Notably the 8188eu doesn't seem to use this
  84 +        */
  85 +       if (fops->has_darfrc) {
  86 +               rtl8xxxu_write32(priv, REG_DARFRC, 0x00000000);
  87 +               rtl8xxxu_write32(priv, REG_DARFRC + 4, 0x10080404);
  88 +               rtl8xxxu_write32(priv, REG_RARFRC, 0x04030201);
  89 +               rtl8xxxu_write32(priv, REG_RARFRC + 4, 0x08070605);
  90 +       }
  91
  92         val8 = rtl8xxxu_read8(priv, REG_FWHW_TXQ_CTRL);
  93         val8 |= FWHW_TXQ_CTRL_AMPDU_RETRY;