UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

USB: gadget: ci13xxx: don't assume that PAGE_SIZE is 4096 

Page size for transaction descriptors for CI13XXX has nothing
common with page size from MM. Using platform and configuration
specific PAGE_SIZE is wrong.

Signed-off-by: Artem Leonenko <tikkeri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Artem Leonenko 2010-12-14 23:47:06 -08:00 committed by Greg Kroah-Hartman
parent 7c25a82684
commit 0a313c4d24
2 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/usb/gadget/ci13xxx_udc.c
View File

@ -1460,7 +1460,7 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
mReq->ptr->page[0] = mReq->req.dma;
for (i = 1; i < 5; i++)
mReq->ptr->page[i] =
(mReq->req.dma + i * PAGE_SIZE) & ~TD_RESERVED_MASK;
(mReq->req.dma + i * CI13XXX_PAGE_SIZE) & ~TD_RESERVED_MASK;
/*
* QH configuration
@ -2159,8 +2159,8 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req,
goto done;
}
if (req->length > (4 * PAGE_SIZE)) {
req->length = (4 * PAGE_SIZE);
if (req->length > (4 * CI13XXX_PAGE_SIZE)) {
req->length = (4 * CI13XXX_PAGE_SIZE);
retval = -EMSGSIZE;
warn("request length truncated");
}
@ -2410,13 +2410,13 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
/* alloc resources */
udc->qh_pool = dma_pool_create("ci13xxx_qh", &udc->gadget.dev,
sizeof(struct ci13xxx_qh),
64, PAGE_SIZE);
64, CI13XXX_PAGE_SIZE);
if (udc->qh_pool == NULL)
return -ENOMEM;
udc->td_pool = dma_pool_create("ci13xxx_td", &udc->gadget.dev,
sizeof(struct ci13xxx_td),
64, PAGE_SIZE);
64, CI13XXX_PAGE_SIZE);
if (udc->td_pool == NULL) {
dma_pool_destroy(udc->qh_pool);
udc->qh_pool = NULL;

1
drivers/usb/gadget/ci13xxx_udc.h
View File

@ -19,6 +19,7 @@
/******************************************************************************
* DEFINE
*****************************************************************************/
#define CI13XXX_PAGE_SIZE 4096ul /* page size for TD's */
#define ENDPT_MAX (16)
#define CTRL_PAYLOAD_MAX (64)
#define RX (0) /* similar to USB_DIR_OUT but can be used as an index */