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-rw-r--r--drivers/usb/gadget/f_loopback.c6
-rw-r--r--drivers/usb/gadget/f_sourcesink.c52
-rw-r--r--drivers/usb/gadget/g_zero.h4
-rw-r--r--drivers/usb/gadget/zero.c70
4 files changed, 74 insertions, 58 deletions
diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c
index 83301bdcdd1..eb6ddfc2085 100644
--- a/drivers/usb/gadget/f_loopback.c
+++ b/drivers/usb/gadget/f_loopback.c
@@ -359,7 +359,7 @@ static struct usb_configuration loopback_driver = {
* loopback_add - add a loopback testing configuration to a device
* @cdev: the device to support the loopback configuration
*/
-int __init loopback_add(struct usb_composite_dev *cdev)
+int __init loopback_add(struct usb_composite_dev *cdev, bool autoresume)
{
int id;
@@ -372,6 +372,10 @@ int __init loopback_add(struct usb_composite_dev *cdev)
loopback_intf.iInterface = id;
loopback_driver.iConfiguration = id;
+ /* support autoresume for remote wakeup testing */
+ if (autoresume)
+ sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+
/* support OTG systems */
if (gadget_is_otg(cdev->gadget)) {
loopback_driver.descriptors = otg_desc;
diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c
index 6aca5c81414..bffe91d525f 100644
--- a/drivers/usb/gadget/f_sourcesink.c
+++ b/drivers/usb/gadget/f_sourcesink.c
@@ -59,7 +59,6 @@ struct f_sourcesink {
struct usb_ep *in_ep;
struct usb_ep *out_ep;
- struct timer_list resume;
};
static inline struct f_sourcesink *func_to_ss(struct usb_function *f)
@@ -67,10 +66,6 @@ static inline struct f_sourcesink *func_to_ss(struct usb_function *f)
return container_of(f, struct f_sourcesink, function);
}
-static unsigned autoresume;
-module_param(autoresume, uint, 0);
-MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup");
-
static unsigned pattern;
module_param(pattern, uint, 0);
MODULE_PARM_DESC(pattern, "0 = all zeroes, 1 = mod63 ");
@@ -155,21 +150,6 @@ static struct usb_gadget_strings *sourcesink_strings[] = {
/*-------------------------------------------------------------------------*/
-static void sourcesink_autoresume(unsigned long _c)
-{
- struct usb_composite_dev *cdev = (void *)_c;
- struct usb_gadget *g = cdev->gadget;
-
- /* Normally the host would be woken up for something
- * more significant than just a timer firing; likely
- * because of some direct user request.
- */
- if (g->speed != USB_SPEED_UNKNOWN) {
- int status = usb_gadget_wakeup(g);
- DBG(cdev, "%s --> %d\n", __func__, status);
- }
-}
-
static int __init
sourcesink_bind(struct usb_configuration *c, struct usb_function *f)
{
@@ -198,9 +178,6 @@ autoconf_fail:
goto autoconf_fail;
ss->out_ep->driver_data = cdev; /* claim */
- setup_timer(&ss->resume, sourcesink_autoresume,
- (unsigned long) c->cdev);
-
/* support high speed hardware */
if (gadget_is_dualspeed(c->cdev->gadget)) {
hs_source_desc.bEndpointAddress =
@@ -359,7 +336,6 @@ static void disable_source_sink(struct f_sourcesink *ss)
cdev = ss->function.config->cdev;
disable_endpoints(cdev, ss->in_ep, ss->out_ep);
- del_timer(&ss->resume);
VDBG(cdev, "%s disabled\n", ss->function.name);
}
@@ -426,30 +402,6 @@ static void sourcesink_disable(struct usb_function *f)
disable_source_sink(ss);
}
-static void sourcesink_suspend(struct usb_function *f)
-{
- struct f_sourcesink *ss = func_to_ss(f);
- struct usb_composite_dev *cdev = f->config->cdev;
-
- if (cdev->gadget->speed == USB_SPEED_UNKNOWN)
- return;
-
- if (autoresume) {
- mod_timer(&ss->resume, jiffies + (HZ * autoresume));
- DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume);
- } else
- DBG(cdev, "%s\n", __func__);
-}
-
-static void sourcesink_resume(struct usb_function *f)
-{
- struct f_sourcesink *ss = func_to_ss(f);
- struct usb_composite_dev *cdev = f->config->cdev;
-
- DBG(cdev, "%s\n", __func__);
- del_timer(&ss->resume);
-}
-
/*-------------------------------------------------------------------------*/
static int __init sourcesink_bind_config(struct usb_configuration *c)
@@ -467,8 +419,6 @@ static int __init sourcesink_bind_config(struct usb_configuration *c)
ss->function.unbind = sourcesink_unbind;
ss->function.set_alt = sourcesink_set_alt;
ss->function.disable = sourcesink_disable;
- ss->function.suspend = sourcesink_suspend;
- ss->function.resume = sourcesink_resume;
status = usb_add_function(c, &ss->function);
if (status)
@@ -559,7 +509,7 @@ static struct usb_configuration sourcesink_driver = {
* sourcesink_add - add a source/sink testing configuration to a device
* @cdev: the device to support the configuration
*/
-int __init sourcesink_add(struct usb_composite_dev *cdev)
+int __init sourcesink_add(struct usb_composite_dev *cdev, bool autoresume)
{
int id;
diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h
index dd2f16ad5a8..e84b3c47ed3 100644
--- a/drivers/usb/gadget/g_zero.h
+++ b/drivers/usb/gadget/g_zero.h
@@ -19,7 +19,7 @@ void disable_endpoints(struct usb_composite_dev *cdev,
struct usb_ep *in, struct usb_ep *out);
/* configuration-specific linkup */
-int sourcesink_add(struct usb_composite_dev *cdev);
-int loopback_add(struct usb_composite_dev *cdev);
+int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume);
+int loopback_add(struct usb_composite_dev *cdev, bool autoresume);
#endif /* __G_ZERO_H */
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 20614dce8db..2d772401b7a 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -102,11 +102,21 @@ module_param(loopdefault, bool, S_IRUGO|S_IWUSR);
#ifndef CONFIG_USB_ZERO_HNPTEST
#define DRIVER_VENDOR_NUM 0x0525 /* NetChip */
#define DRIVER_PRODUCT_NUM 0xa4a0 /* Linux-USB "Gadget Zero" */
+#define DEFAULT_AUTORESUME 0
#else
#define DRIVER_VENDOR_NUM 0x1a0a /* OTG test device IDs */
#define DRIVER_PRODUCT_NUM 0xbadd
+#define DEFAULT_AUTORESUME 5
#endif
+/* If the optional "autoresume" mode is enabled, it provides good
+ * functional coverage for the "USBCV" test harness from USB-IF.
+ * It's always set if OTG mode is enabled.
+ */
+unsigned autoresume = DEFAULT_AUTORESUME;
+module_param(autoresume, uint, S_IRUGO);
+MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup");
+
/*-------------------------------------------------------------------------*/
static struct usb_device_descriptor device_desc = {
@@ -212,6 +222,47 @@ void disable_endpoints(struct usb_composite_dev *cdev,
/*-------------------------------------------------------------------------*/
+static struct timer_list autoresume_timer;
+
+static void zero_autoresume(unsigned long _c)
+{
+ struct usb_composite_dev *cdev = (void *)_c;
+ struct usb_gadget *g = cdev->gadget;
+
+ /* unconfigured devices can't issue wakeups */
+ if (!cdev->config)
+ return;
+
+ /* Normally the host would be woken up for something
+ * more significant than just a timer firing; likely
+ * because of some direct user request.
+ */
+ if (g->speed != USB_SPEED_UNKNOWN) {
+ int status = usb_gadget_wakeup(g);
+ INFO(cdev, "%s --> %d\n", __func__, status);
+ }
+}
+
+static void zero_suspend(struct usb_composite_dev *cdev)
+{
+ if (cdev->gadget->speed == USB_SPEED_UNKNOWN)
+ return;
+
+ if (autoresume) {
+ mod_timer(&autoresume_timer, jiffies + (HZ * autoresume));
+ DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume);
+ } else
+ DBG(cdev, "%s\n", __func__);
+}
+
+static void zero_resume(struct usb_composite_dev *cdev)
+{
+ DBG(cdev, "%s\n", __func__);
+ del_timer(&autoresume_timer);
+}
+
+/*-------------------------------------------------------------------------*/
+
static int __init zero_bind(struct usb_composite_dev *cdev)
{
int gcnum;
@@ -239,17 +290,19 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
strings_dev[STRING_SERIAL_IDX].id = id;
device_desc.iSerialNumber = id;
+ setup_timer(&autoresume_timer, zero_autoresume, (unsigned long) cdev);
+
/* Register primary, then secondary configuration. Note that
* SH3 only allows one config...
*/
if (loopdefault) {
- loopback_add(cdev);
+ loopback_add(cdev, autoresume != 0);
if (!gadget_is_sh(gadget))
- sourcesink_add(cdev);
+ sourcesink_add(cdev, autoresume != 0);
} else {
- sourcesink_add(cdev);
+ sourcesink_add(cdev, autoresume != 0);
if (!gadget_is_sh(gadget))
- loopback_add(cdev);
+ loopback_add(cdev, autoresume != 0);
}
gcnum = usb_gadget_controller_number(gadget);
@@ -278,11 +331,20 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
return 0;
}
+static int zero_unbind(struct usb_composite_dev *cdev)
+{
+ del_timer_sync(&autoresume_timer);
+ return 0;
+}
+
static struct usb_composite_driver zero_driver = {
.name = "zero",
.dev = &device_desc,
.strings = dev_strings,
.bind = zero_bind,
+ .unbind = zero_unbind,
+ .suspend = zero_suspend,
+ .resume = zero_resume,
};
MODULE_AUTHOR("David Brownell");