A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-07 12:25:00 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "USB: dwc3: gadget: Add stop transfer request for isoc transfers"

Browse source
This commit is contained in:
QCTECMDR Service 2025-01-03 02:06:41 -08:00 • committed by Gerrit - the friendly Code Review server
commit 6ea403acf3
1 changed files with 43 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

54
drivers/usb/dwc3/gadget.c
View file

@ -30,6 +30,8 @@
#define DWC3_ALIGN_FRAME(d, n) (((d)->frame_number + ((d)->interval * (n))) \
& ~((d)->interval - 1))
#define DWC3_FRAME_WRAP_AROUND_MASK (BIT(14) | BIT(15))
static int __dwc3_gadget_start(struct dwc3 *dwc);
static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc);
static void dwc3_gadget_wakeup_interrupt(struct dwc3 *dwc, bool remote_wakeup);
@ -228,6 +230,11 @@ int dwc3_gadget_resize_tx_fifos(struct dwc3 *dwc, struct dwc3_ep *dep)
&& dwc3_is_usb31(dwc))
mult = 6;
if ((dep->endpoint.maxburst > 6) &&
usb_endpoint_xfer_isoc(dep->endpoint.desc))
mult = 6;
tmp = ((max_packet + mdwidth) * mult) + mdwidth;
fifo_size = DIV_ROUND_UP(tmp, mdwidth);
dep->fifo_depth = fifo_size;
@ -1652,7 +1659,7 @@ static int __dwc3_gadget_start_isoc(struct dwc3_ep *dep)
{
struct dwc3 *dwc = dep->dwc;
int ret;
int i;
u16 wraparound_bits, uf;
if (list_empty(&dep->pending_list)) {
dep->flags |= DWC3_EP_PENDING_REQUEST;
@ -1669,13 +1676,36 @@ static int __dwc3_gadget_start_isoc(struct dwc3_ep *dep)
return dwc3_gadget_start_isoc_quirk(dep);
}
for (i = 0; i < DWC3_ISOC_MAX_RETRIES; i++) {
dep->frame_number = __dwc3_gadget_get_frame(dep->dwc) + 16;
dep->frame_number = DWC3_ALIGN_FRAME(dep, i + 1);
wraparound_bits = dep->frame_number & DWC3_FRAME_WRAP_AROUND_MASK;
uf = dep->frame_number & ~DWC3_FRAME_WRAP_AROUND_MASK;
ret = __dwc3_gadget_kick_transfer(dep);
if (ret != -EAGAIN)
break;
/* if frame wrapped-around update wrap-around bits to reflect that */
if (__dwc3_gadget_get_frame(dep->dwc) < uf)
wraparound_bits += BIT(14);
uf = __dwc3_gadget_get_frame(dep->dwc) + max_t(u32, 16, 2 * dep->interval);
/* align frame number to ep interval */
dep->frame_number = (wraparound_bits + uf) & ~(dep->interval - 1);
ret = __dwc3_gadget_kick_transfer(dep);
if (ret == -EAGAIN) {
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
dwc3_gadget_ep_get_transfer_index(dep);
dep->flags |= DWC3_EP_PENDING_REQUEST;
cmd = DWC3_DEPCMD_ENDTRANSFER |
DWC3_DEPCMD_CMDIOC |
DWC3_DEPCMD_PARAM(dep->resource_index);
dep->resource_index = 0;
memset(&params, 0, sizeof(params));
ret = dwc3_send_gadget_ep_cmd(dep, cmd, &params);
if (!ret)
dep->flags |= DWC3_EP_END_TRANSFER_PENDING;
}
return ret;
@ -3414,12 +3444,14 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
if (event->status & DEPEVT_STATUS_MISSED_ISOC) {
status = -EXDEV;
dep->missed_isoc_packets++;
dbg_event(dep->number, "MISSEDISOC", 0);
dbg_event(dep->number, "MISSEDISOC", dep->missed_isoc_packets);
}
if (list_empty(&dep->started_list))
stop = true;
if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
(list_empty(&dep->started_list))) {
stop = true;
dbg_event(dep->number, "STOPXFER", dep->frame_number);
}
if (dep->flags & DWC3_EP_END_TRANSFER_PENDING)