From 74cd2cdf235fbba685e8518b87a1035bc580cb60 Mon Sep 17 00:00:00 2001
From: Eugene Syromiatnikov <esyr@redhat.com>
Date: Fri, 6 Sep 2019 01:53:36 +0200
Subject: [PATCH 5/7] Revert "iwlwifi: add support for 6-7 GHz channels"
This reverts commit b15ef67c0e6b51be0f37985261ca53f9b477e816.
---
drivers/net/wireless/intel/iwlwifi/cfg/22000.c | 2 -
drivers/net/wireless/intel/iwlwifi/iwl-config.h | 4 +-
drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 74 +++++++++-------------
3 files changed, 31 insertions(+), 49 deletions(-)
Index: src/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/cfg/22000.c 2019-06-27 14:54:04.111678603 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/cfg/22000.c 2019-09-06 01:58:30.872997894 +0200
@@ -432,14 +432,12 @@
const struct iwl_cfg iwlax210_2ax_cfg_so_gf_a0 = {
.name = "Intel(R) Wi-Fi 7 AX211 160MHz",
.fw_name_pre = IWL_22000_SO_A_GF_A_FW_PRE,
- .uhb_supported = true,
IWL_DEVICE_AX210,
};
const struct iwl_cfg iwlax210_2ax_cfg_ty_gf_a0 = {
.name = "Intel(R) Wi-Fi 7 AX210 160MHz",
.fw_name_pre = IWL_22000_TY_A_GF_A_FW_PRE,
- .uhb_supported = true,
IWL_DEVICE_AX210,
};
Index: src/drivers/net/wireless/intel/iwlwifi/iwl-config.h
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/iwl-config.h 2019-06-27 14:54:04.127678410 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/iwl-config.h 2019-09-06 01:58:30.872997894 +0200
@@ -383,7 +383,6 @@
* @bisr_workaround: BISR hardware workaround (for 22260 series devices)
* @min_txq_size: minimum number of slots required in a TX queue
* @umac_prph_offset: offset to add to UMAC periphery address
- * @uhb_supported: ultra high band channels supported
* @min_256_ba_txq_size: minimum number of slots required in a TX queue which
* supports 256 BA aggregation
*
@@ -436,8 +435,7 @@
gen2:1,
cdb:1,
dbgc_supported:1,
- bisr_workaround:1,
- uhb_supported:1;
+ bisr_workaround:1;
u8 valid_tx_ant;
u8 valid_rx_ant;
u8 non_shared_ant;
Index: src/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c 2019-09-06 01:58:30.666000559 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c 2019-09-06 01:58:30.873997881 +0200
@@ -130,7 +130,7 @@
/*
* These are the channel numbers in the order that they are stored in the NVM
*/
-static const u16 iwl_nvm_channels[] = {
+static const u8 iwl_nvm_channels[] = {
/* 2.4 GHz */
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
/* 5 GHz */
@@ -139,7 +139,7 @@
149, 153, 157, 161, 165
};
-static const u16 iwl_ext_nvm_channels[] = {
+static const u8 iwl_ext_nvm_channels[] = {
/* 2.4 GHz */
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
/* 5 GHz */
@@ -148,27 +148,14 @@
149, 153, 157, 161, 165, 169, 173, 177, 181
};
-static const u16 iwl_uhb_nvm_channels[] = {
- /* 2.4 GHz */
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- /* 5 GHz */
- 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
- 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
- 149, 153, 157, 161, 165, 169, 173, 177, 181,
- /* 6-7 GHz */
- 189, 193, 197, 201, 205, 209, 213, 217, 221, 225, 229, 233, 237, 241,
- 245, 249, 253, 257, 261, 265, 269, 273, 277, 281, 285, 289, 293, 297,
- 301, 305, 309, 313, 317, 321, 325, 329, 333, 337, 341, 345, 349, 353,
- 357, 361, 365, 369, 373, 377, 381, 385, 389, 393, 397, 401, 405, 409,
- 413, 417, 421
-};
-
#define IWL_NVM_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels)
#define IWL_NVM_NUM_CHANNELS_EXT ARRAY_SIZE(iwl_ext_nvm_channels)
-#define IWL_NVM_NUM_CHANNELS_UHB ARRAY_SIZE(iwl_uhb_nvm_channels)
#define NUM_2GHZ_CHANNELS 14
+#define NUM_2GHZ_CHANNELS_EXT 14
#define FIRST_2GHZ_HT_MINUS 5
#define LAST_2GHZ_HT_PLUS 9
+#define LAST_5GHZ_HT 165
+#define LAST_5GHZ_HT_FAMILY_8000 181
#define N_HW_ADDR_MASK 0xF
/* rate data (static) */
@@ -260,13 +247,17 @@
u16 nvm_flags, const struct iwl_cfg *cfg)
{
u32 flags = IEEE80211_CHAN_NO_HT40;
+ u32 last_5ghz_ht = LAST_5GHZ_HT;
+
+ if (cfg->nvm_type == IWL_NVM_EXT)
+ last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
if (!is_5ghz && (nvm_flags & NVM_CHANNEL_40MHZ)) {
if (ch_num <= LAST_2GHZ_HT_PLUS)
flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
if (ch_num >= FIRST_2GHZ_HT_MINUS)
flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
- } else if (nvm_flags & NVM_CHANNEL_40MHZ) {
+ } else if (ch_num <= last_5ghz_ht && (nvm_flags & NVM_CHANNEL_40MHZ)) {
if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
else
@@ -308,18 +299,17 @@
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
- int num_of_ch, num_2ghz_channels = NUM_2GHZ_CHANNELS;
- const u16 *nvm_chan;
+ int num_of_ch, num_2ghz_channels;
+ const u8 *nvm_chan;
- if (cfg->uhb_supported) {
- num_of_ch = IWL_NVM_NUM_CHANNELS_UHB;
- nvm_chan = iwl_uhb_nvm_channels;
- } else if (cfg->nvm_type == IWL_NVM_EXT) {
- num_of_ch = IWL_NVM_NUM_CHANNELS_EXT;
- nvm_chan = iwl_ext_nvm_channels;
- } else {
+ if (cfg->nvm_type != IWL_NVM_EXT) {
num_of_ch = IWL_NVM_NUM_CHANNELS;
- nvm_chan = iwl_nvm_channels;
+ nvm_chan = &iwl_nvm_channels[0];
+ num_2ghz_channels = NUM_2GHZ_CHANNELS;
+ } else {
+ num_of_ch = IWL_NVM_NUM_CHANNELS_EXT;
+ nvm_chan = &iwl_ext_nvm_channels[0];
+ num_2ghz_channels = NUM_2GHZ_CHANNELS_EXT;
}
for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
@@ -825,11 +815,15 @@
}
IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);
-static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
+static u32 iwl_nvm_get_regdom_bw_flags(const u8 *nvm_chan,
int ch_idx, u16 nvm_flags,
const struct iwl_cfg *cfg)
{
u32 flags = NL80211_RRF_NO_HT40;
+ u32 last_5ghz_ht = LAST_5GHZ_HT;
+
+ if (cfg->nvm_type == IWL_NVM_EXT)
+ last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
if (ch_idx < NUM_2GHZ_CHANNELS &&
(nvm_flags & NVM_CHANNEL_40MHZ)) {
@@ -837,7 +831,8 @@
flags &= ~NL80211_RRF_NO_HT40PLUS;
if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
flags &= ~NL80211_RRF_NO_HT40MINUS;
- } else if (nvm_flags & NVM_CHANNEL_40MHZ) {
+ } else if (nvm_chan[ch_idx] <= last_5ghz_ht &&
+ (nvm_flags & NVM_CHANNEL_40MHZ)) {
if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
flags &= ~NL80211_RRF_NO_HT40PLUS;
else
@@ -881,7 +876,8 @@
int ch_idx;
u16 ch_flags;
u32 reg_rule_flags, prev_reg_rule_flags = 0;
- const u16 *nvm_chan;
+ const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ?
+ iwl_ext_nvm_channels : iwl_nvm_channels;
struct ieee80211_regdomain *regd, *copy_rd;
int size_of_regd, regd_to_copy;
struct ieee80211_reg_rule *rule;
@@ -890,18 +886,8 @@
int center_freq, prev_center_freq = 0;
int valid_rules = 0;
bool new_rule;
- int max_num_ch;
-
- if (cfg->uhb_supported) {
- max_num_ch = IWL_NVM_NUM_CHANNELS_UHB;
- nvm_chan = iwl_uhb_nvm_channels;
- } else if (cfg->nvm_type == IWL_NVM_EXT) {
- max_num_ch = IWL_NVM_NUM_CHANNELS_EXT;
- nvm_chan = iwl_ext_nvm_channels;
- } else {
- max_num_ch = IWL_NVM_NUM_CHANNELS;
- nvm_chan = iwl_nvm_channels;
- }
+ int max_num_ch = cfg->nvm_type == IWL_NVM_EXT ?
+ IWL_NVM_NUM_CHANNELS_EXT : IWL_NVM_NUM_CHANNELS;
if (WARN_ON(num_of_ch > max_num_ch))
num_of_ch = max_num_ch;