*/
#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
#include <linux/list.h>
-#include <linux/dma-mapping.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/composite.h>
#include "core.h"
-#include "debug.h"
#include "gadget.h"
#include "io.h"
+#include "linux-compat.h"
+
static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep);
static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
struct dwc3_ep *dep, struct dwc3_request *req);
}
static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
- u32 len, u32 type)
+ u32 len, u32 type, unsigned chain)
{
struct dwc3_gadget_ep_cmd_params params;
struct dwc3_trb *trb;
return 0;
}
- trb = dwc->ep0_trb;
+ trb = &dwc->ep0_trb[dep->free_slot];
+
+ if (chain)
+ dep->free_slot++;
trb->bpl = lower_32_bits(buf_dma);
trb->bph = upper_32_bits(buf_dma);
trb->ctrl = type;
trb->ctrl |= (DWC3_TRB_CTRL_HWO
- | DWC3_TRB_CTRL_LST
- | DWC3_TRB_CTRL_IOC
| DWC3_TRB_CTRL_ISP_IMI);
+ if (chain)
+ trb->ctrl |= DWC3_TRB_CTRL_CHN;
+ else
+ trb->ctrl |= (DWC3_TRB_CTRL_IOC
+ | DWC3_TRB_CTRL_LST);
+
+ dwc3_flush_cache((int)buf_dma, len);
+ dwc3_flush_cache((int)trb, sizeof(*trb));
+
+ if (chain)
+ return 0;
+
memset(¶ms, 0, sizeof(params));
params.param0 = upper_32_bits(dwc->ep0_trb_addr);
params.param1 = lower_32_bits(dwc->ep0_trb_addr);
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value)
{
- struct dwc3_ep *dep = to_dwc3_ep(ep);
- struct dwc3 *dwc = dep->dwc;
unsigned long flags;
int ret;
int ret;
ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
- DWC3_TRBCTL_CONTROL_SETUP);
+ DWC3_TRBCTL_CONTROL_SETUP, 0);
WARN_ON(ret < 0);
}
struct dwc3_ep *dep;
enum usb_device_state state = dwc->gadget.state;
u16 wLength;
- u16 wValue;
if (state == USB_STATE_DEFAULT)
return -EINVAL;
- wValue = le16_to_cpu(ctrl->wValue);
wLength = le16_to_cpu(ctrl->wLength);
if (wLength != 6) {
struct usb_request *ur;
struct dwc3_trb *trb;
struct dwc3_ep *ep0;
- u32 transferred;
+ unsigned transfer_size = 0;
+ unsigned maxp;
+ void *buf;
+ u32 transferred = 0;
u32 status;
u32 length;
u8 epnum;
if (!r)
return;
+ dwc3_flush_cache((int)trb, sizeof(*trb));
+
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING) {
dev_dbg(dwc->dev, "Setup Pending received");
}
ur = &r->request;
+ buf = ur->buf;
length = trb->size & DWC3_TRB_SIZE_MASK;
+ maxp = ep0->endpoint.maxpacket;
+
if (dwc->ep0_bounced) {
- unsigned transfer_size = ur->length;
- unsigned maxp = ep0->endpoint.maxpacket;
+ /*
+ * Handle the first TRB before handling the bounce buffer if
+ * the request length is greater than the bounce buffer size.
+ */
+ if (ur->length > DWC3_EP0_BOUNCE_SIZE) {
+ transfer_size = (ur->length / maxp) * maxp;
+ transferred = transfer_size - length;
+ buf = (u8 *)buf + transferred;
+ ur->actual += transferred;
+
+ trb++;
+ dwc3_flush_cache((int)trb, sizeof(*trb));
+ length = trb->size & DWC3_TRB_SIZE_MASK;
- transfer_size += (maxp - (transfer_size % maxp));
- transferred = min_t(u32, ur->length,
- transfer_size - length);
- memcpy(ur->buf, dwc->ep0_bounce, transferred);
+ ep0->free_slot = 0;
+ }
+
+ transfer_size = roundup((ur->length - transfer_size),
+ maxp);
+ transferred = min_t(u32, ur->length - transferred,
+ transfer_size - length);
+ dwc3_flush_cache((int)dwc->ep0_bounce, DWC3_EP0_BOUNCE_SIZE);
+ memcpy(buf, dwc->ep0_bounce, transferred);
} else {
transferred = ur->length - length;
}
ret = dwc3_ep0_start_trans(dwc, epnum,
dwc->ctrl_req_addr, 0,
- DWC3_TRBCTL_CONTROL_DATA);
+ DWC3_TRBCTL_CONTROL_DATA, 0);
WARN_ON(ret < 0);
}
}
if (req->request.length == 0) {
ret = dwc3_ep0_start_trans(dwc, dep->number,
- dwc->ctrl_req_addr, 0,
- DWC3_TRBCTL_CONTROL_DATA);
- } else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
- && (dep->number == 0)) {
- u32 transfer_size;
+ dwc->ctrl_req_addr, 0,
+ DWC3_TRBCTL_CONTROL_DATA, 0);
+ } else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) &&
+ (dep->number == 0)) {
+ u32 transfer_size = 0;
u32 maxpacket;
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
return;
}
- WARN_ON(req->request.length > DWC3_EP0_BOUNCE_SIZE);
-
maxpacket = dep->endpoint.maxpacket;
- transfer_size = roundup(req->request.length, maxpacket);
+ if (req->request.length > DWC3_EP0_BOUNCE_SIZE) {
+ transfer_size = (req->request.length / maxpacket) *
+ maxpacket;
+ ret = dwc3_ep0_start_trans(dwc, dep->number,
+ req->request.dma,
+ transfer_size,
+ DWC3_TRBCTL_CONTROL_DATA, 1);
+ }
+
+ transfer_size = roundup((req->request.length - transfer_size),
+ maxpacket);
dwc->ep0_bounced = true;
* TRBs to handle the transfer.
*/
ret = dwc3_ep0_start_trans(dwc, dep->number,
- dwc->ep0_bounce_addr, transfer_size,
- DWC3_TRBCTL_CONTROL_DATA);
+ dwc->ep0_bounce_addr, transfer_size,
+ DWC3_TRBCTL_CONTROL_DATA, 0);
} else {
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
dep->number);
}
ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,
- req->request.length, DWC3_TRBCTL_CONTROL_DATA);
+ req->request.length,
+ DWC3_TRBCTL_CONTROL_DATA, 0);
}
WARN_ON(ret < 0);
: DWC3_TRBCTL_CONTROL_STATUS2;
return dwc3_ep0_start_trans(dwc, dep->number,
- dwc->ctrl_req_addr, 0, type);
+ dwc->ctrl_req_addr, 0, type, 0);
}
static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)