Commit 7eebe4ec authored by Pali Rohár's avatar Pali Rohár Committed by Greg Kroah-Hartman
Browse files

usb: musb: debugfs: allow forcing host mode together with speed in testmode 



Based on the musb ug, force_host bit is allowed to be set along with
force_hs or force_fs bit.

It could help to implement forced host mode via testmode on Nokia N900.

Signed-off-by: default avatarPali Rohár <pali.rohar@gmail.com>
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bb1d1ce8

drivers/usb/musb/musb_debugfs.c

+29 −17
Original line number Diff line number Diff line
@@ -153,28 +153,34 @@ static int musb_test_mode_show(struct seq_file *s, void *unused) 
	pm_runtime_mark_last_busy(musb->controller);

	pm_runtime_put_autosuspend(musb->controller);



	if (test & MUSB_TEST_FORCE_HOST)

	if (test == (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS))

		seq_printf(s, "force host full-speed\n");



	else if (test == (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS))

		seq_printf(s, "force host high-speed\n");



	else if (test == MUSB_TEST_FORCE_HOST)

		seq_printf(s, "force host\n");



	if (test & MUSB_TEST_FIFO_ACCESS)

	else if (test == MUSB_TEST_FIFO_ACCESS)

		seq_printf(s, "fifo access\n");



	if (test & MUSB_TEST_FORCE_FS)

	else if (test == MUSB_TEST_FORCE_FS)

		seq_printf(s, "force full-speed\n");



	if (test & MUSB_TEST_FORCE_HS)

	else if (test == MUSB_TEST_FORCE_HS)

		seq_printf(s, "force high-speed\n");



	if (test & MUSB_TEST_PACKET)

	else if (test == MUSB_TEST_PACKET)

		seq_printf(s, "test packet\n");



	if (test & MUSB_TEST_K)

	else if (test == MUSB_TEST_K)

		seq_printf(s, "test K\n");



	if (test & MUSB_TEST_J)

	else if (test == MUSB_TEST_J)

		seq_printf(s, "test J\n");



	if (test & MUSB_TEST_SE0_NAK)

	else if (test == MUSB_TEST_SE0_NAK)

		seq_printf(s, "test SE0 NAK\n");



	return 0;
@@ -198,7 +204,7 @@ static ssize_t musb_test_mode_write(struct file *file, 
	struct seq_file		*s = file->private_data;

	struct musb		*musb = s->private;

	u8			test;

	char			buf[18];

	char			buf[24];



	pm_runtime_get_sync(musb->controller);

	test = musb_readb(musb->mregs, MUSB_TESTMODE);
@@ -213,30 +219,36 @@ static ssize_t musb_test_mode_write(struct file *file, 
	if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))

		return -EFAULT;



	if (strstarts(buf, "force host"))

	if (strstarts(buf, "force host full-speed"))

		test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS;



	else if (strstarts(buf, "force host high-speed"))

		test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS;



	else if (strstarts(buf, "force host"))

		test = MUSB_TEST_FORCE_HOST;



	if (strstarts(buf, "fifo access"))

	else if (strstarts(buf, "fifo access"))

		test = MUSB_TEST_FIFO_ACCESS;



	if (strstarts(buf, "force full-speed"))

	else if (strstarts(buf, "force full-speed"))

		test = MUSB_TEST_FORCE_FS;



	if (strstarts(buf, "force high-speed"))

	else if (strstarts(buf, "force high-speed"))

		test = MUSB_TEST_FORCE_HS;



	if (strstarts(buf, "test packet")) {

	else if (strstarts(buf, "test packet")) {

		test = MUSB_TEST_PACKET;

		musb_load_testpacket(musb);

	}



	if (strstarts(buf, "test K"))

	else if (strstarts(buf, "test K"))

		test = MUSB_TEST_K;



	if (strstarts(buf, "test J"))

	else if (strstarts(buf, "test J"))

		test = MUSB_TEST_J;



	if (strstarts(buf, "test SE0 NAK"))

	else if (strstarts(buf, "test SE0 NAK"))

		test = MUSB_TEST_SE0_NAK;



	musb_writeb(musb->mregs, MUSB_TESTMODE, test);

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