From: Pali Rohár <pali.ro...@gmail.com>
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: Pali Rohár <pali.ro...@gmail.com>
Signed-off-by: Bin Liu <b-...@ti.com>
---
drivers/usb/musb/musb_debugfs.c | 46 ++++++++++++++++++++++++++---------------
1 file changed, 29 insertions(+), 17 deletions(-)
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index dd70c88419d2..952733ceaac8 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -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);
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
