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Commit e3dc15b0 authored by Yuanyuan Liu's avatar Yuanyuan Liu Committed by Yue Ma
Browse files

cnss2: Add debugfs interface for driver state 



Debugfs interface is added to expose platform driver state.

CRs-Fixed: 2012284
Change-Id: I1148902dcca73f6a4783cc397958060d5f25d302
Signed-off-by: default avatarYuanyuan Liu <yuanliu@codeaurora.org>
parent a3e227fc

drivers/net/wireless/cnss2/debug.c

+71 −0
Original line number Diff line number Diff line
@@ -51,6 +51,75 @@ static const struct file_operations cnss_pin_connect_fops = { 
	.llseek		= seq_lseek,

};



static int cnss_stats_show_state(struct seq_file *s,

				 struct cnss_plat_data *plat_priv)

{

	enum cnss_driver_state i;

	int skip = 0;

	unsigned long state;



	seq_printf(s, "\nState: 0x%lx(", plat_priv->driver_state);

	for (i = 0, state = plat_priv->driver_state; state != 0;

	     state >>= 1, i++) {

		if (!(state & 0x1))

			continue;



		if (skip++)

			seq_puts(s, " | ");



		switch (i) {

		case CNSS_QMI_WLFW_CONNECTED:

			seq_puts(s, "QMI_WLFW_CONNECTED");

			continue;

		case CNSS_FW_MEM_READY:

			seq_puts(s, "FW_MEM_READY");

			continue;

		case CNSS_FW_READY:

			seq_puts(s, "FW_READY");

			continue;

		case CNSS_COLD_BOOT_CAL_DONE:

			seq_puts(s, "COLD_BOOT_CAL_DONE");

			continue;

		case CNSS_DRIVER_LOAD_UNLOAD:

			seq_puts(s, "DRIVER_LOAD_UNLOAD");

			continue;

		case CNSS_DRIVER_PROBED:

			seq_puts(s, "DRIVER_PROBED");

			continue;

		case CNSS_DRIVER_RECOVERY:

			seq_puts(s, "DRIVER_RECOVERY");

			continue;

		}



		seq_printf(s, "UNKNOWN-%d", i);

	}

	seq_puts(s, ")\n");



	return 0;

}



static int cnss_stats_show(struct seq_file *s, void *data)

{

	struct cnss_plat_data *plat_priv = s->private;



	cnss_stats_show_state(s, plat_priv);



	return 0;

}



static int cnss_stats_open(struct inode *inode, struct file *file)

{

	return single_open(file, cnss_stats_show, inode->i_private);

}



static const struct file_operations cnss_stats_fops = {

	.read           = seq_read,

	.release        = single_release,

	.open           = cnss_stats_open,

	.owner          = THIS_MODULE,

	.llseek         = seq_lseek,

};



int cnss_debugfs_create(struct cnss_plat_data *plat_priv)

{

	int ret = 0;
@@ -65,6 +134,8 @@ int cnss_debugfs_create(struct cnss_plat_data *plat_priv) 
	plat_priv->root_dentry = root_dentry;

	debugfs_create_file("pin_connect_result", 0644, root_dentry, plat_priv,

			    &cnss_pin_connect_fops);

	debugfs_create_file("stats", 0644, root_dentry, plat_priv,

			    &cnss_stats_fops);

out:

	return ret;

}