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Allow class drivers to reuse the core data buffer for control transfers. This doesn't make much difference right now, but it should keep HID memory usage lower (once HID is ready) (FS#10146 by Tomer Shalev)

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20735 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Gevaerts 2009-04-18 20:40:50 +00:00
parent 2c0da9d152
commit 3314f389ba
6 changed files with 14 additions and 10 deletions
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10
firmware/usbstack/usb_core.c
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@ -168,7 +168,7 @@ static enum { DEFAULT, ADDRESS, CONFIGURED } usb_state;
static int usb_core_num_interfaces;
typedef void (*completion_handler_t)(int ep,int dir, int status, int length);
typedef bool (*control_handler_t)(struct usb_ctrlrequest* req);
typedef bool (*control_handler_t)(struct usb_ctrlrequest* req, unsigned char *dest);
static struct
{
@ -695,7 +695,7 @@ static void usb_core_control_request_handler(struct usb_ctrlrequest* req)
drivers[i].first_interface <= (req->wIndex) &&
drivers[i].last_interface > (req->wIndex))
{
handled = drivers[i].control_request(req);
handled = drivers[i].control_request(req, response_data);
}
}
if(!handled) {
@ -735,8 +735,10 @@ static void usb_core_control_request_handler(struct usb_ctrlrequest* req)
break;
default: {
bool handled=false;
if(ep_data[req->wIndex & 0xf].control_handler[0] != NULL)
handled = ep_data[req->wIndex & 0xf].control_handler[0](req);
if(ep_data[req->wIndex & 0xf].control_handler[0] != NULL) {
handled = ep_data[req->wIndex & 0xf].control_handler[0](req,
response_data);
}
if(!handled) {
/* nope. flag error */
logf("usb bad req %d", req->bRequest);