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ath9k_htc: catch fw panic pattern 

... and print what we get.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Oleksij Rempel 2014-02-04 10:27:50 +01:00 committed by John W. Linville
parent c8ec0f5c9b
commit 482b30b653
2 changed files with 48 additions and 0 deletions
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36
drivers/net/wireless/ath/ath9k/htc_hst.c
View File

@ -358,6 +358,36 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
kfree_skb(skb);
}
static void ath9k_htc_fw_panic_report(struct htc_target *htc_handle,
struct sk_buff *skb)
{
uint32_t *pattern = (uint32_t *)skb->data;
switch (*pattern) {
case 0x33221199:
{
struct htc_panic_bad_vaddr *htc_panic;
htc_panic = (struct htc_panic_bad_vaddr *) skb->data;
dev_err(htc_handle->dev, "ath: firmware panic! "
"exccause: 0x%08x; pc: 0x%08x; badvaddr: 0x%08x.\n",
htc_panic->exccause, htc_panic->pc,
htc_panic->badvaddr);
break;
}
case 0x33221299:
{
struct htc_panic_bad_epid *htc_panic;
htc_panic = (struct htc_panic_bad_epid *) skb->data;
dev_err(htc_handle->dev, "ath: firmware panic! "
"bad epid: 0x%08x\n", htc_panic->epid);
break;
}
default:
dev_err(htc_handle->dev, "ath: uknown panic pattern!\n");
break;
}
}
/*
* HTC Messages are handled directly here and the obtained SKB
* is freed.
@ -379,6 +409,12 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle,
htc_hdr = (struct htc_frame_hdr *) skb->data;
epid = htc_hdr->endpoint_id;
if (epid == 0x99) {
ath9k_htc_fw_panic_report(htc_handle, skb);
kfree_skb(skb);
return;
}
if (epid >= ENDPOINT_MAX) {
if (pipe_id != USB_REG_IN_PIPE)
dev_kfree_skb_any(skb);

12
drivers/net/wireless/ath/ath9k/htc_hst.h
View File

@ -77,6 +77,18 @@ struct htc_config_pipe_msg {
u8 credits;
} __packed;
struct htc_panic_bad_vaddr {
__be32 pattern;
__be32 exccause;
__be32 pc;
__be32 badvaddr;
} __packed;
struct htc_panic_bad_epid {
__be32 pattern;
__be32 epid;
} __packed;
struct htc_ep_callbacks {
void *priv;
void (*tx) (void *, struct sk_buff *, enum htc_endpoint_id, bool txok);