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usb: sandbox: Add support for interrupt operations

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Allow USB device emulation to support interrupt URBs so that we can use USB
keyboards with sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-11-08 23:48:05 -07:00
parent 2cdb58ebdc
commit b70a3fea94
3 changed files with 42 additions and 0 deletions
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12
drivers/usb/emul/usb-emul-uclass.c
View File

@ -218,6 +218,18 @@ int usb_emul_bulk(struct udevice *emul, struct usb_device *udev,
return ops->bulk(emul, udev, pipe, buffer, length);
}
int usb_emul_int(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length, int interval)
{
struct dm_usb_ops *ops = usb_get_emul_ops(emul);
if (!ops->interrupt)
return -ENOSYS;
debug("%s: dev=%s\n", __func__, emul->name);
return ops->interrupt(emul, udev, pipe, buffer, length, interval);
}
int usb_emul_setup_device(struct udevice *dev, int maxpacketsize,
struct usb_string *strings, void **desc_list)
{

19
drivers/usb/host/usb-sandbox.c
View File

@ -87,6 +87,24 @@ static int sandbox_submit_bulk(struct udevice *bus, struct usb_device *udev,
return ret;
}
static int sandbox_submit_int(struct udevice *bus, struct usb_device *udev,
unsigned long pipe, void *buffer, int length,
int interval)
{
struct udevice *emul;
int ret;
/* Just use child of dev as emulator? */
debug("%s: bus=%s\n", __func__, bus->name);
ret = usb_emul_find(bus, pipe, &emul);
usbmon_trace(bus, pipe, NULL, emul);
if (ret)
return ret;
ret = usb_emul_int(emul, udev, pipe, buffer, length, interval);
return ret;
}
static int sandbox_alloc_device(struct udevice *dev, struct usb_device *udev)
{
return 0;
@ -100,6 +118,7 @@ static int sandbox_usb_probe(struct udevice *dev)
static const struct dm_usb_ops sandbox_usb_ops = {
.control = sandbox_submit_control,
.bulk = sandbox_submit_bulk,
.interrupt = sandbox_submit_int,
.alloc_device = sandbox_alloc_device,
};

11
include/usb.h
View File

@ -937,6 +937,17 @@ int usb_emul_control(struct udevice *emul, struct usb_device *udev,
int usb_emul_bulk(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length);
/**
* usb_emul_int() - Send an interrupt packet to an emulator
*
* @emul: Emulator device
* @udev: USB device (which the emulator is causing to appear)
* See struct dm_usb_ops for details on other parameters
* @return 0 if OK, -ve on error
*/
int usb_emul_int(struct udevice *emul, struct usb_device *udev,
unsigned long pipe, void *buffer, int length, int interval);
/**
* usb_emul_find() - Find an emulator for a particular device
*