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| author | Paul Zimmerman <Paul.Zimmerman@synopsys.com> | 2012-04-16 14:19:06 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-05-04 15:53:08 +0300 |
| commit | b4036ccdd2ce5ec0c4f29b91312dd3cf19fc9152 (patch) | |
| tree | b48719669536a489f842b1a8d55fd73a69055066 /drivers/usb/gadget/zero.c | |
| parent | 20c5e74c7b47cefaf2cd0f84bdb4830b66452384 (diff) | |
| download | op-kernel-dev-b4036ccdd2ce5ec0c4f29b91312dd3cf19fc9152.zip op-kernel-dev-b4036ccdd2ce5ec0c4f29b91312dd3cf19fc9152.tar.gz | |
usb: gadget: add isochronous support to gadget zero
Add two isochronous endpoints to the gadget zero source/sink
function. They are enabled by selecting alternate interface 1, so
by default they are not enabled. Module parameters for setting all
the isoc endpoint characteristics are also provided.
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/zero.c')
| -rw-r--r-- | drivers/usb/gadget/zero.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 31d3483..12ad516 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -72,7 +72,7 @@ static const char longname[] = "Gadget Zero"; -unsigned buflen = 4096; +unsigned buflen = 4096; /* only used for bulk endpoints */ module_param(buflen, uint, 0); /* @@ -170,14 +170,17 @@ static struct usb_gadget_strings *dev_strings[] = { /*-------------------------------------------------------------------------*/ -struct usb_request *alloc_ep_req(struct usb_ep *ep) +struct usb_request *alloc_ep_req(struct usb_ep *ep, int len) { struct usb_request *req; req = usb_ep_alloc_request(ep, GFP_ATOMIC); if (req) { - req->length = buflen; - req->buf = kmalloc(buflen, GFP_ATOMIC); + if (len) + req->length = len; + else + req->length = buflen; + req->buf = kmalloc(req->length, GFP_ATOMIC); if (!req->buf) { usb_ep_free_request(ep, req); req = NULL; @@ -206,10 +209,15 @@ static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep) } void disable_endpoints(struct usb_composite_dev *cdev, - struct usb_ep *in, struct usb_ep *out) + struct usb_ep *in, struct usb_ep *out, + struct usb_ep *iso_in, struct usb_ep *iso_out) { disable_ep(cdev, in); disable_ep(cdev, out); + if (iso_in) + disable_ep(cdev, iso_in); + if (iso_out) + disable_ep(cdev, iso_out); } /*-------------------------------------------------------------------------*/ @@ -311,7 +319,6 @@ static int __init zero_bind(struct usb_composite_dev *cdev) device_desc.bcdDevice = cpu_to_le16(0x9999); } - INFO(cdev, "%s, version: " DRIVER_VERSION "\n", longname); snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", |
