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Commit 88bdffc8 authored by Li Jun's avatar Li Jun Committed by Greg Kroah-Hartman
Browse files

usb: chipidea: debug: add debug file for OTG variables 



This patch adds a debug file for OTG vairables show.

Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
Signed-off-by: default avatarLi Jun <b47624@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 15f75def

drivers/usb/chipidea/debug.c

+84 −0
Original line number Diff line number Diff line
@@ -7,6 +7,9 @@ 
#include <linux/uaccess.h>

#include <linux/usb/ch9.h>

#include <linux/usb/gadget.h>

#include <linux/usb/phy.h>

#include <linux/usb/otg.h>

#include <linux/usb/otg-fsm.h>



#include "ci.h"

#include "udc.h"
@@ -205,6 +208,80 @@ static const struct file_operations ci_requests_fops = { 
	.release	= single_release,

};



int ci_otg_show(struct seq_file *s, void *unused)

{

	struct ci_hdrc *ci = s->private;

	struct otg_fsm *fsm;



	if (!ci || !ci_otg_is_fsm_mode(ci))

		return 0;



	fsm = &ci->fsm;



	/* ------ State ----- */

	seq_printf(s, "OTG state: %s\n\n",

		usb_otg_state_string(ci->transceiver->state));



	/* ------ State Machine Variables ----- */

	seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);



	seq_printf(s, "a_bus_req: %d\n", fsm->a_bus_req);



	seq_printf(s, "a_srp_det: %d\n", fsm->a_srp_det);



	seq_printf(s, "a_vbus_vld: %d\n", fsm->a_vbus_vld);



	seq_printf(s, "b_conn: %d\n", fsm->b_conn);



	seq_printf(s, "adp_change: %d\n", fsm->adp_change);



	seq_printf(s, "power_up: %d\n", fsm->power_up);



	seq_printf(s, "a_bus_resume: %d\n", fsm->a_bus_resume);



	seq_printf(s, "a_bus_suspend: %d\n", fsm->a_bus_suspend);



	seq_printf(s, "a_conn: %d\n", fsm->a_conn);



	seq_printf(s, "b_bus_req: %d\n", fsm->b_bus_req);



	seq_printf(s, "b_bus_suspend: %d\n", fsm->b_bus_suspend);



	seq_printf(s, "b_se0_srp: %d\n", fsm->b_se0_srp);



	seq_printf(s, "b_ssend_srp: %d\n", fsm->b_ssend_srp);



	seq_printf(s, "b_sess_vld: %d\n", fsm->b_sess_vld);



	seq_printf(s, "b_srp_done: %d\n", fsm->b_srp_done);



	seq_printf(s, "drv_vbus: %d\n", fsm->drv_vbus);



	seq_printf(s, "loc_conn: %d\n", fsm->loc_conn);



	seq_printf(s, "loc_sof: %d\n", fsm->loc_sof);



	seq_printf(s, "adp_prb: %d\n", fsm->adp_prb);



	seq_printf(s, "id: %d\n", fsm->id);



	seq_printf(s, "protocol: %d\n", fsm->protocol);



	return 0;

}



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

{

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

}



static const struct file_operations ci_otg_fops = {

	.open			= ci_otg_open,

	.read			= seq_read,

	.llseek			= seq_lseek,

	.release		= single_release,

};



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

{

	struct ci_hdrc *ci = s->private;
@@ -332,6 +409,13 @@ int dbg_create_files(struct ci_hdrc *ci) 
	if (!dent)

		goto err;



	if (ci_otg_is_fsm_mode(ci)) {

		dent = debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci,

					&ci_otg_fops);

		if (!dent)

			goto err;

	}



	dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci,

				   &ci_role_fops);

	if (!dent)