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path: root/drivers/net/wireless/realtek/rtw88/sec.c
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Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/sec.c')
-rw-r--r--drivers/net/wireless/realtek/rtw88/sec.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/sec.c b/drivers/net/wireless/realtek/rtw88/sec.c
index c594fc02804d..d0d7fbb10d58 100644
--- a/drivers/net/wireless/realtek/rtw88/sec.c
+++ b/drivers/net/wireless/realtek/rtw88/sec.c
@@ -96,6 +96,27 @@ void rtw_sec_clear_cam(struct rtw_dev *rtwdev,
rtw_write32(rtwdev, RTW_SEC_CMD_REG, command);
}
+u8 rtw_sec_cam_pg_backup(struct rtw_dev *rtwdev, u8 *used_cam)
+{
+ struct rtw_sec_desc *sec = &rtwdev->sec;
+ u8 offset = 0;
+ u8 count, n;
+
+ if (!used_cam)
+ return 0;
+
+ for (count = 0; count < MAX_PG_CAM_BACKUP_NUM; count++) {
+ n = find_next_bit(sec->cam_map, RTW_MAX_SEC_CAM_NUM, offset);
+ if (n == RTW_MAX_SEC_CAM_NUM)
+ break;
+
+ used_cam[count] = n;
+ offset = n + 1;
+ }
+
+ return count;
+}
+
void rtw_sec_enable_sec_engine(struct rtw_dev *rtwdev)
{
struct rtw_sec_desc *sec = &rtwdev->sec;