From ceaa0a6eeadfd2f53df121210d99a1f80ee7645e Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 8 Jul 2011 14:51:33 +0900
Subject: [PATCH] usb: gadget: m66592-udc: add support for TEST_MODE
The USB high speed device must support the TEST_MODE, but the driver
didn't support it. When we sent the SET_FEATURE for TEST_MODE to
the driver, the request was successful, but the module didn't enter
the TEST_MODE.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
drivers/usb/gadget/m66592-udc.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index dd9f460a7ef4..40c2f7a4f8fb 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -691,6 +691,7 @@ static void init_controller(struct m66592 *m66592)
static void disable_controller(struct m66592 *m66592)
{
+ m66592_bclr(m66592, M66592_UTST, M66592_TESTMODE);
if (!m66592->pdata->on_chip) {
m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
udelay(1);
@@ -1048,10 +1049,30 @@ static void clear_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
static void set_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
{
+ u16 tmp;
+ int timeout = 3000;
switch (ctrl->bRequestType & USB_RECIP_MASK) {
case USB_RECIP_DEVICE:
- control_end(m66592, 1);
+ switch (le16_to_cpu(ctrl->wValue)) {
+ case USB_DEVICE_TEST_MODE:
+ control_end(m66592, 1);
+ /* Wait for the completion of status stage */
+ do {
+ tmp = m66592_read(m66592, M66592_INTSTS0) &
+ M66592_CTSQ;
+ udelay(1);
+ } while (tmp != M66592_CS_IDST || timeout-- > 0);
+
+ if (tmp == M66592_CS_IDST)
+ m66592_bset(m66592,
+ le16_to_cpu(ctrl->wIndex >> 8),
+ M66592_TESTMODE);
+ break;
+ default:
+ pipe_stall(m66592, 0);
+ break;
+ }
break;
case USB_RECIP_INTERFACE:
control_end(m66592, 1);
--
2.34.1