diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2022-09-30 21:44:17 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-10-05 10:43:19 +0300 |
| commit | 732dd91db3d3a1b7a767598549ffed358c9fbb89 (patch) | |
| tree | 0f7ffac9ad4ae5c1afd3fa2a4fafc46acc69f69f /drivers/net/wireless/realtek/rtw89/debug.c | |
| parent | d187691ab63f53f199a07904422e0911bc6f9390 (diff) | |
| download | linux-next-732dd91db3d3a1b7a767598549ffed358c9fbb89.tar.gz | |
wifi: rtw89: add to dump TX FIFO 0/1 for 8852C
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
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/debug.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/debug.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c index f584fa57c82f..8f27c883eeab 100644 --- a/drivers/net/wireless/realtek/rtw89/debug.c +++ b/drivers/net/wireless/realtek/rtw89/debug.c @@ -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; |