diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-10-29 11:45:24 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-10-31 16:50:29 +0400 |
| commit | 87c2905fd80da736b8f9aa58cbc0c9cf34a11aac (patch) | |
| tree | 86968142f3fb07d3bd85e0f9d3052e9a63f59424 /drivers/usb/renesas_usbhs | |
| parent | 3192fcb234895d9f313e7270702e1dc069d4a73a (diff) | |
| download | linux-87c2905fd80da736b8f9aa58cbc0c9cf34a11aac.tar.xz | |
usb: renesas_usbhs: add DMAEngine support on mod_host
This patch enabled dma mapping, and used dma transfer handler
on mod_host
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/renesas_usbhs')
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod_host.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index 9b69a1323294..e856b449e28a 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -681,9 +681,9 @@ static int usbhsh_queue_push(struct usb_hcd *hcd, } if (usb_pipein(urb->pipe)) - pipe->handler = &usbhs_fifo_pio_pop_handler; + pipe->handler = &usbhs_fifo_dma_pop_handler; else - pipe->handler = &usbhs_fifo_pio_push_handler; + pipe->handler = &usbhs_fifo_dma_push_handler; buf = (void *)(urb->transfer_buffer + urb->actual_length); len = urb->transfer_buffer_length - urb->actual_length; @@ -916,6 +916,19 @@ static int usbhsh_dcp_queue_push(struct usb_hcd *hcd, */ static int usbhsh_dma_map_ctrl(struct usbhs_pkt *pkt, int map) { + if (map) { + struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt); + struct urb *urb = ureq->urb; + + /* it can not use scatter/gather */ + if (urb->num_sgs) + return -EINVAL; + + pkt->dma = urb->transfer_dma; + if (!pkt->dma) + return -EINVAL; + } + return 0; } |