diff options
Diffstat (limited to 'drivers/usb/gadget/udc/renesas_usb3.c')
-rw-r--r-- | drivers/usb/gadget/udc/renesas_usb3.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index ba78e3f..bb89e24 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -685,21 +685,32 @@ static struct renesas_usb3_request *usb3_get_request(struct renesas_usb3_ep return usb3_req; } -static void usb3_request_done(struct renesas_usb3_ep *usb3_ep, - struct renesas_usb3_request *usb3_req, int status) +static void __usb3_request_done(struct renesas_usb3_ep *usb3_ep, + struct renesas_usb3_request *usb3_req, + int status) { struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep); - unsigned long flags; dev_dbg(usb3_to_dev(usb3), "giveback: ep%2d, %u, %u, %d\n", usb3_ep->num, usb3_req->req.length, usb3_req->req.actual, status); usb3_req->req.status = status; - spin_lock_irqsave(&usb3->lock, flags); usb3_ep->started = false; list_del_init(&usb3_req->queue); - spin_unlock_irqrestore(&usb3->lock, flags); + spin_unlock(&usb3->lock); usb_gadget_giveback_request(&usb3_ep->ep, &usb3_req->req); + spin_lock(&usb3->lock); +} + +static void usb3_request_done(struct renesas_usb3_ep *usb3_ep, + struct renesas_usb3_request *usb3_req, int status) +{ + struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep); + unsigned long flags; + + spin_lock_irqsave(&usb3->lock, flags); + __usb3_request_done(usb3_ep, usb3_req, status); + spin_unlock_irqrestore(&usb3->lock, flags); } static void usb3_irq_epc_pipe0_status_end(struct renesas_usb3 *usb3) @@ -868,7 +879,7 @@ static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep, usb3_ep->ep.maxpacket); u8 *buf = usb3_req->req.buf + usb3_req->req.actual; u32 tmp = 0; - bool is_last; + bool is_last = !len ? true : false; if (usb3_wait_pipe_status(usb3_ep, PX_STA_BUFSTS) < 0) return -EBUSY; @@ -889,7 +900,8 @@ static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep, usb3_write(usb3, tmp, fifo_reg); } - is_last = usb3_is_transfer_complete(usb3_ep, usb3_req); + if (!is_last) + is_last = usb3_is_transfer_complete(usb3_ep, usb3_req); /* Send the data */ usb3_set_px_con_send(usb3_ep, len, is_last); @@ -980,7 +992,8 @@ static void usb3_start_pipe0(struct renesas_usb3_ep *usb3_ep, usb3_set_p0_con_for_ctrl_read_data(usb3); } else { usb3_clear_bit(usb3, P0_MOD_DIR, USB3_P0_MOD); - usb3_set_p0_con_for_ctrl_write_data(usb3); + if (usb3_req->req.length) + usb3_set_p0_con_for_ctrl_write_data(usb3); } usb3_p0_xfer(usb3_ep, usb3_req); @@ -1557,7 +1570,16 @@ static u32 usb3_calc_ramarea(int ram_size) static u32 usb3_calc_rammap_val(struct renesas_usb3_ep *usb3_ep, const struct usb_endpoint_descriptor *desc) { - return usb3_ep->rammap_val | PN_RAMMAP_MPKT(usb_endpoint_maxp(desc)); + int i; + const u32 max_packet_array[] = {8, 16, 32, 64, 512}; + u32 mpkt = PN_RAMMAP_MPKT(1024); + + for (i = 0; i < ARRAY_SIZE(max_packet_array); i++) { + if (usb_endpoint_maxp(desc) <= max_packet_array[i]) + mpkt = PN_RAMMAP_MPKT(max_packet_array[i]); + } + + return usb3_ep->rammap_val | mpkt; } static int usb3_enable_pipe_n(struct renesas_usb3_ep *usb3_ep, |