From: Dedy Lansky <dlansky@xxxxxxxxxxxxxx>
wil6210 device needs to use country specific board file while in China
regulatory domain.
Register cfg80211 reg_notifier and switch board file if needed
according to new regulatory domain.
This feature is disabled by default and can be enabled with a new
country_specific_board_file module parameter.
Signed-off-by: Dedy Lansky <dlansky@xxxxxxxxxxxxxx>
Signed-off-by: Maya Erez <merez@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/wil6210/cfg80211.c | 66 +++++++++++++++++++++++++++++
drivers/net/wireless/ath/wil6210/main.c | 37 +++++++++++++---
drivers/net/wireless/ath/wil6210/wil6210.h | 6 +++
3 files changed, 104 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index c2da159..ba9a81c 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -24,11 +24,16 @@
#include "fw.h"
#define WIL_MAX_ROC_DURATION_MS 5000
+#define CTRY_CHINA "CN"
bool disable_ap_sme;
module_param(disable_ap_sme, bool, 0444);
MODULE_PARM_DESC(disable_ap_sme, " let user space handle AP mode SME");
+static bool country_specific_board_file;
+module_param(country_specific_board_file, bool, 0444);
+MODULE_PARM_DESC(country_specific_board_file, " switch board file upon regulatory domain change (Default: false)");
+
#ifdef CONFIG_PM
static struct wiphy_wowlan_support wil_wowlan_support = {
.flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
@@ -2124,6 +2129,65 @@ static int wil_cfg80211_resume(struct wiphy *wiphy)
return 0;
}
+static int wil_switch_board_file(struct wil6210_priv *wil,
+ const u8 *new_regdomain)
+{
+ int rc = 0;
+
+ if (!country_specific_board_file)
+ return 0;
+
+ if (memcmp(wil->regdomain, CTRY_CHINA, 2) == 0) {
+ wil_info(wil, "moving out of China reg domain, use default board file\n");
+ wil->board_file_country[0] = '\0';
+ } else if (memcmp(new_regdomain, CTRY_CHINA, 2) == 0) {
+ wil_info(wil, "moving into China reg domain, use country specific board file\n");
+ strlcpy(wil->board_file_country, CTRY_CHINA,
+ sizeof(wil->board_file_country));
+ } else {
+ return 0;
+ }
+
+ /* need to switch board file - reset the device */
+
+ mutex_lock(&wil->mutex);
+
+ if (!wil_has_active_ifaces(wil, true, false) ||
+ wil_is_recovery_blocked(wil))
+ /* new board file will be used in next FW load */
+ goto out;
+
+ __wil_down(wil);
+ rc = __wil_up(wil);
+
+out:
+ mutex_unlock(&wil->mutex);
+ return rc;
+}
+
+static void wil_cfg80211_reg_notify(struct wiphy *wiphy,
+ struct regulatory_request *request)
+{
+ struct wil6210_priv *wil = wiphy_to_wil(wiphy);
+ int rc;
+
+ wil_info(wil, "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
+ request->alpha2[0], request->alpha2[1],
+ request->intersect ? " intersect" : "",
+ request->processed ? " processed" : "",
+ request->initiator, request->user_reg_hint_type);
+
+ if (memcmp(wil->regdomain, request->alpha2, 2) == 0)
+ /* reg domain did not change */
+ return;
+
+ rc = wil_switch_board_file(wil, request->alpha2);
+ if (rc)
+ wil_err(wil, "switch board file failed %d\n", rc);
+
+ memcpy(wil->regdomain, request->alpha2, sizeof(wil->regdomain));
+}
+
static const struct cfg80211_ops wil_cfg80211_ops = {
.add_virtual_intf = wil_cfg80211_add_iface,
.del_virtual_intf = wil_cfg80211_del_iface,
@@ -2198,6 +2262,8 @@ static void wil_wiphy_init(struct wiphy *wiphy)
wiphy->n_vendor_commands = ARRAY_SIZE(wil_nl80211_vendor_commands);
wiphy->vendor_commands = wil_nl80211_vendor_commands;
+ wiphy->reg_notifier = wil_cfg80211_reg_notify;
+
#ifdef CONFIG_PM
wiphy->wowlan = &wil_wowlan_support;
#endif
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 82aec6b..52f12c6 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -26,6 +26,7 @@
#define WAIT_FOR_HALP_VOTE_MS 100
#define WAIT_FOR_SCAN_ABORT_MS 1000
+#define WIL_BOARD_FILE_MAX_NAMELEN 128
bool debug_fw; /* = false; */
module_param(debug_fw, bool, 0444);
@@ -943,6 +944,30 @@ void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r)
le32_to_cpus(&r->head);
}
+/* construct actual board file name to use */
+void wil_get_board_file(struct wil6210_priv *wil, char *buf, size_t len)
+{
+ const char *board_file = WIL_BOARD_FILE_NAME;
+ const char *ext;
+ int prefix_len;
+
+ if (wil->board_file_country[0] == '\0') {
+ strlcpy(buf, board_file, len);
+ return;
+ }
+
+ /* use country specific board file */
+ if (len < strlen(board_file) + 4 /* for _XX and terminating null */)
+ return;
+
+ ext = strrchr(board_file, '.');
+ prefix_len = (ext ? ext - board_file : strlen(board_file));
+ snprintf(buf, len, "%.*s_%.2s",
+ prefix_len, board_file, wil->board_file_country);
+ if (ext)
+ strlcat(buf, ext, len);
+}
+
static int wil_get_bl_info(struct wil6210_priv *wil)
{
struct net_device *ndev = wil->main_ndev;
@@ -1302,8 +1327,12 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw)
wil_set_oob_mode(wil, oob_mode);
if (load_fw) {
+ char board_file[WIL_BOARD_FILE_MAX_NAMELEN];
+
+ board_file[0] = '\0';
+ wil_get_board_file(wil, board_file, sizeof(board_file));
wil_info(wil, "Use firmware <%s> + board <%s>\n",
- wil->wil_fw_name, WIL_BOARD_FILE_NAME);
+ wil->wil_fw_name, board_file);
if (!no_flash)
wil_bl_prepare_halt(wil);
@@ -1315,11 +1344,9 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw)
if (rc)
goto out;
if (wil->brd_file_addr)
- rc = wil_request_board(wil, WIL_BOARD_FILE_NAME);
+ rc = wil_request_board(wil, board_file);
else
- rc = wil_request_firmware(wil,
- WIL_BOARD_FILE_NAME,
- true);
+ rc = wil_request_firmware(wil, board_file, true);
if (rc)
goto out;
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index c81fe1d..633eb71 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -720,6 +720,7 @@ struct wil6210_priv {
const char *hw_name;
const char *wil_fw_name;
char *board_file;
+ char board_file_country[3]; /* alpha2 */
u32 brd_file_addr;
u32 brd_file_max_size;
DECLARE_BITMAP(hw_capa, hw_capa_last);
@@ -812,6 +813,9 @@ struct wil6210_priv {
int fw_calib_result;
+ /* current reg domain configured in kernel */
+ char regdomain[3]; /* alpha2 */
+
struct notifier_block pm_notify;
bool suspend_resp_rcvd;
@@ -905,6 +909,8 @@ static inline void wil_c(struct wil6210_priv *wil, u32 reg, u32 val)
wil_w(wil, reg, wil_r(wil, reg) & ~val);
}
+void wil_get_board_file(struct wil6210_priv *wil, char *buf, size_t len);
+
#if defined(CONFIG_DYNAMIC_DEBUG)
#define wil_hex_dump_txrx(prefix_str, prefix_type, rowsize, \
groupsize, buf, len, ascii) \
--
1.9.1
