drivers/net/wireless/intel/iwlwifi/fw/dbg.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/iwlwifi/fw/dbg.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/intel/iwlwifi/fw/dbg.h
Extension
.h
Size
10191 bytes
Lines
350
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct iwl_fw_dump_desc {
	size_t len;
	/* must be last */
	struct iwl_fw_error_dump_trigger_desc trig_desc;
};

/**
 * struct iwl_fw_dbg_params - register values to restore
 * @in_sample: DBGC_IN_SAMPLE value
 * @out_ctrl: DBGC_OUT_CTRL value
 */
struct iwl_fw_dbg_params {
	u32 in_sample;
	u32 out_ctrl;
};

/* old-style dump entry point */
void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
		       struct iwl_fwrt_dump_data *dump_data);
struct scatterlist *iwl_fw_dbg_alloc_sgtable(ssize_t size);

extern const struct iwl_fw_dump_desc iwl_dump_desc_assert;

int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
			    const struct iwl_fw_dump_desc *desc,
			    bool monitor_only, unsigned int delay);
int iwl_fw_dbg_error_collect(struct iwl_fw_runtime *fwrt,
			     enum iwl_fw_dbg_trigger trig_type);
int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt,
			   struct iwl_fwrt_dump_data *dump_data,
			   bool sync);
int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
		       enum iwl_fw_dbg_trigger trig, const char *str,
		       size_t len, struct iwl_fw_dbg_trigger_tlv *trigger);
int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
			    struct iwl_fw_dbg_trigger_tlv *trigger,
			    const char *fmt, ...) __printf(3, 4);
int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 id);

#define iwl_fw_dbg_trigger_enabled(fw, id) ({			\
	void *__dbg_trigger = (fw)->dbg.trigger_tlv[(id)];	\
	unlikely(__dbg_trigger);				\
})

static inline struct iwl_fw_dbg_trigger_tlv*
_iwl_fw_dbg_get_trigger(const struct iwl_fw *fw, enum iwl_fw_dbg_trigger id)
{
	return fw->dbg.trigger_tlv[id];
}

#define iwl_fw_dbg_get_trigger(fw, id) ({			\
	BUILD_BUG_ON(!__builtin_constant_p(id));		\
	BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX);		\
	_iwl_fw_dbg_get_trigger((fw), (id));			\
})

static inline bool
iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig,
			     struct wireless_dev *wdev)
{
	u32 trig_vif = le32_to_cpu(trig->vif_type);

	return trig_vif == IWL_FW_DBG_CONF_VIF_ANY ||
	       wdev->iftype == trig_vif;
}

static inline bool
iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime *fwrt,
				   struct iwl_fw_dbg_trigger_tlv *trig)
{
	return ((trig->mode & IWL_FW_DBG_TRIGGER_STOP) &&
		(fwrt->dump.conf == FW_DBG_INVALID ||
		(BIT(fwrt->dump.conf) & le32_to_cpu(trig->stop_conf_ids))));
}

static inline bool
iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime *fwrt, u32 id, u32 dis_usec)
{
	unsigned long wind_jiff = usecs_to_jiffies(dis_usec);

	/* If this is the first event checked, jump to update start ts */
	if (fwrt->dump.non_collect_ts_start[id] &&
	    (time_after(fwrt->dump.non_collect_ts_start[id] + wind_jiff,
			jiffies)))
		return true;

	fwrt->dump.non_collect_ts_start[id] = jiffies;
	return false;
}

Annotation

Implementation Notes