iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

wifi: rtw89: add to dump TX FIFO 0/1 for 8852C

Browse Source 
MAC maintains TX FIFO to transmit packets with meta data to BB layer. To
debug abnormal transmission, we need to dump the content to dig problem.
Since FIFO of 8852C locates on different address with different size and
need additional switch to enable read operation, this patch adds the
changes accordingly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220930134417.10282-2-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih 2022-09-30 21:44:17 +08:00 committed by Kalle Valo
parent d187691ab6
commit 732dd91db3
3 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/wireless/realtek/rtw89/debug.c
View File

@ -774,13 +774,34 @@ rtw89_debug_priv_mac_mem_dump_get(struct seq_file *m, void *v)
{
struct rtw89_debugfs_priv *debugfs_priv = m->private;
struct rtw89_dev *rtwdev = debugfs_priv->rtwdev;
bool grant_read = false;
if (debugfs_priv->mac_mem.sel >= RTW89_MAC_MEM_NUM)
return -ENOENT;
if (rtwdev->chip->chip_id == RTL8852C) {
switch (debugfs_priv->mac_mem.sel) {
case RTW89_MAC_MEM_TXD_FIFO_0_V1:
case RTW89_MAC_MEM_TXD_FIFO_1_V1:
case RTW89_MAC_MEM_TXDATA_FIFO_0:
case RTW89_MAC_MEM_TXDATA_FIFO_1:
grant_read = true;
break;
default:
break;
}
}
mutex_lock(&rtwdev->mutex);
rtw89_leave_ps_mode(rtwdev);
if (grant_read)
rtw89_write32_set(rtwdev, R_AX_TCR1, B_AX_TCR_FORCE_READ_TXDFIFO);
rtw89_debug_dump_mac_mem(m, rtwdev,
debugfs_priv->mac_mem.sel,
debugfs_priv->mac_mem.start,
debugfs_priv->mac_mem.len);
if (grant_read)
rtw89_write32_clr(rtwdev, R_AX_TCR1, B_AX_TCR_FORCE_READ_TXDFIFO);
mutex_unlock(&rtwdev->mutex);
return 0;

2
drivers/net/wireless/realtek/rtw89/mac.c
View File

@ -31,6 +31,8 @@ const u32 rtw89_mac_mem_base_addrs[RTW89_MAC_MEM_NUM] = {
[RTW89_MAC_MEM_TXDATA_FIFO_1] = TXDATA_FIFO_1_BASE_ADDR,
[RTW89_MAC_MEM_CPU_LOCAL] = CPU_LOCAL_BASE_ADDR,
[RTW89_MAC_MEM_BSSID_CAM] = BSSID_CAM_BASE_ADDR,
[RTW89_MAC_MEM_TXD_FIFO_0_V1] = TXD_FIFO_0_BASE_ADDR_V1,
[RTW89_MAC_MEM_TXD_FIFO_1_V1] = TXD_FIFO_1_BASE_ADDR_V1,
};
static void rtw89_mac_mem_write(struct rtw89_dev *rtwdev, u32 offset,

4
drivers/net/wireless/realtek/rtw89/mac.h
View File

@ -245,6 +245,8 @@ enum rtw89_mac_dbg_port_sel {
#define BCN_IE_CAM1_BASE_ADDR 0x188A0000
#define TXD_FIFO_0_BASE_ADDR 0x18856200
#define TXD_FIFO_1_BASE_ADDR 0x188A1080
#define TXD_FIFO_0_BASE_ADDR_V1 0x18856400 /* for 8852C */
#define TXD_FIFO_1_BASE_ADDR_V1 0x188A1080 /* for 8852C */
#define TXDATA_FIFO_0_BASE_ADDR 0x18856000
#define TXDATA_FIFO_1_BASE_ADDR 0x188A1000
#define CPU_LOCAL_BASE_ADDR 0x18003000
@ -271,6 +273,8 @@ enum rtw89_mac_mem_sel {
RTW89_MAC_MEM_TXDATA_FIFO_1,
RTW89_MAC_MEM_CPU_LOCAL,
RTW89_MAC_MEM_BSSID_CAM,
RTW89_MAC_MEM_TXD_FIFO_0_V1,
RTW89_MAC_MEM_TXD_FIFO_1_V1,
/* keep last */
RTW89_MAC_MEM_NUM,