Commit 87f1283b authored by Mordechay Goodstein's avatar Mordechay Goodstein Committed by Luca Coelho
Browse files

iwlwifi: enable sending/setting debug host event 



This is used for BT node and for any user that wants to
control what events would be send from FW to the driver.

Signed-off-by: default avatarMordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.a9dba2daca59.I2b18bccf0d409f1517c3e2841b667014f9dafc24@changeid


Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent eae94cf8

drivers/net/wireless/intel/iwlwifi/fw/api/debug.h

+14 −0
Original line number Diff line number Diff line
@@ -78,6 +78,12 @@ enum iwl_debug_cmds { 
	 * &struct iwl_dbg_mem_access_rsp

	 */

	UMAC_RD_WR = 0x1,

	/**

	 * @HOST_EVENT_CFG:

	 * updates the enabled event severities

	 * &struct iwl_dbg_host_event_cfg_cmd

	 */

	HOST_EVENT_CFG = 0x3,

	/**

	 * @DBGC_SUSPEND_RESUME:

	 * DBGC suspend/resume commad. Uses a single dword as data:
@@ -395,4 +401,12 @@ struct iwl_buf_alloc_cmd { 
	struct iwl_buf_alloc_frag frags[BUF_ALLOC_MAX_NUM_FRAGS];

} __packed; /* BUFFER_ALLOCATION_CMD_API_S_VER_2 */



/**

 * struct iwl_dbg_host_event_cfg_cmd

 * @enabled_severities: enabled severities

 */

struct iwl_dbg_host_event_cfg_cmd {

	__le32 enabled_severities;

} __packed; /* DEBUG_HOST_EVENT_CFG_CMD_API_S_VER_1 */



#endif /* __iwl_fw_api_debug_h__ */

drivers/net/wireless/intel/iwlwifi/fw/debugfs.c

+29 −0
Original line number Diff line number Diff line
@@ -200,6 +200,34 @@ static int iwl_fw_send_timestamp_marker_cmd(struct iwl_fw_runtime *fwrt) 
	return iwl_trans_send_cmd(fwrt->trans, &hcmd);

}



static int iwl_dbgfs_enabled_severities_write(struct iwl_fw_runtime *fwrt,

					      char *buf, size_t count)

{

	struct iwl_dbg_host_event_cfg_cmd event_cfg;

	struct iwl_host_cmd hcmd = {

		.id = iwl_cmd_id(HOST_EVENT_CFG, DEBUG_GROUP, 0),

		.flags = CMD_ASYNC,

		.data[0] = &event_cfg,

		.len[0] = sizeof(event_cfg),

	};

	u32 enabled_severities;

	int ret = kstrtou32(buf, 10, &enabled_severities);



	if (ret < 0)

		return ret;



	event_cfg.enabled_severities = cpu_to_le32(enabled_severities);



	ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);

	IWL_INFO(fwrt,

		 "sent host event cfg with enabled_severities: %u, ret: %d\n",

		 enabled_severities, ret);



	return ret ?: count;

}



FWRT_DEBUGFS_WRITE_FILE_OPS(enabled_severities, 16);



static void iwl_fw_timestamp_marker_wk(struct work_struct *work)

{

	int ret;
@@ -431,5 +459,6 @@ void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt, 
	FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200);

	FWRT_DEBUGFS_ADD_FILE(fw_info, dbgfs_dir, 0200);

	FWRT_DEBUGFS_ADD_FILE(send_hcmd, dbgfs_dir, 0200);

	FWRT_DEBUGFS_ADD_FILE(enabled_severities, dbgfs_dir, 0200);

	FWRT_DEBUGFS_ADD_FILE(fw_dbg_domain, dbgfs_dir, 0400);

}