diff options
Diffstat (limited to 'drivers/usb/host/dwc2.c')
| -rw-r--r-- | drivers/usb/host/dwc2.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index e370d29..5f4ca7a 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -703,10 +703,9 @@ static int dwc_otg_submit_rh_msg(struct usb_device *dev, unsigned long pipe, return stat; } -int wait_for_chhltd(uint32_t *sub, int *toggle) +int wait_for_chhltd(uint32_t *sub, int *toggle, bool ignore_ack) { - const uint32_t hcint_comp_hlt_ack = DWC2_HCINT_XFERCOMP | - DWC2_HCINT_CHHLTD | DWC2_HCINT_ACK; + uint32_t hcint_comp_hlt_ack = DWC2_HCINT_XFERCOMP | DWC2_HCINT_CHHLTD; struct dwc2_hc_regs *hc_regs = ®s->hc_regs[DWC2_HC_CHANNEL]; int ret; uint32_t hcint, hctsiz; @@ -716,6 +715,10 @@ int wait_for_chhltd(uint32_t *sub, int *toggle) return ret; hcint = readl(&hc_regs->hcint); + if (ignore_ack) + hcint &= ~DWC2_HCINT_ACK; + else + hcint_comp_hlt_ack |= DWC2_HCINT_ACK; if (hcint != hcint_comp_hlt_ack) { debug("%s: Error (HCINT=%08x)\n", __func__, hcint); return -EINVAL; @@ -739,7 +742,7 @@ static int dwc2_eptype[] = { }; int chunk_msg(struct usb_device *dev, unsigned long pipe, int *pid, int in, - void *buffer, int len) + void *buffer, int len, bool ignore_ack) { struct dwc2_hc_regs *hc_regs = ®s->hc_regs[DWC2_HC_CHANNEL]; int devnum = usb_pipedevice(pipe); @@ -800,7 +803,7 @@ int chunk_msg(struct usb_device *dev, unsigned long pipe, int *pid, int in, (1 << DWC2_HCCHAR_MULTICNT_OFFSET) | DWC2_HCCHAR_CHEN); - ret = wait_for_chhltd(&sub, pid); + ret = wait_for_chhltd(&sub, pid, ignore_ack); if (ret) { stop_transfer = 1; break; @@ -839,7 +842,7 @@ int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, } return chunk_msg(dev, pipe, &bulk_data_toggle[devnum][ep], - usb_pipein(pipe), buffer, len); + usb_pipein(pipe), buffer, len, true); } int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, @@ -857,14 +860,14 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, } pid = DWC2_HC_PID_SETUP; - ret = chunk_msg(dev, pipe, &pid, 0, setup, 8); + ret = chunk_msg(dev, pipe, &pid, 0, setup, 8, true); if (ret) return ret; if (buffer) { pid = DWC2_HC_PID_DATA1; ret = chunk_msg(dev, pipe, &pid, usb_pipein(pipe), buffer, - len); + len, false); if (ret) return ret; act_len = dev->act_len; @@ -879,7 +882,8 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, status_direction = 0; pid = DWC2_HC_PID_DATA1; - ret = chunk_msg(dev, pipe, &pid, status_direction, status_buffer, 0); + ret = chunk_msg(dev, pipe, &pid, status_direction, status_buffer, 0, + false); if (ret) return ret; |