From 6acb95d4e0709a582023e87f9b3537fb4d837fd0 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 6 Jun 2011 14:18:16 +0900 Subject: usb: renesas_usbhs: modify packet queue control method Current renesas_usbhs driver is controlling packet queue on mod_gadget.c. But it has relationship with pipe/fifo, not host/gadget. So, controlling USB packet queue in pipe.c/fifo.c is more convenient than in mod_gadget.c. This patch modify it. Signed-off-by: Kuninori Morimoto Signed-off-by: Greg Kroah-Hartman --- drivers/usb/renesas_usbhs/fifo.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) (limited to 'drivers/usb/renesas_usbhs/fifo.c') diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 098388489813..088bfd787e4a 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -22,17 +22,40 @@ /* * packet info function */ -void usbhs_pkt_update(struct usbhs_pkt *pkt, - struct usbhs_pipe *pipe, - void *buf, int len) +void usbhs_pkt_init(struct usbhs_pkt *pkt) +{ + INIT_LIST_HEAD(&pkt->node); +} + +void usbhs_pkt_update(struct usbhs_pkt *pkt, void *buf, int len) { - pkt->pipe = pipe; pkt->buf = buf; pkt->length = len; pkt->actual = 0; pkt->maxp = 0; } +void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt) +{ + list_del_init(&pkt->node); + list_add_tail(&pkt->node, &pipe->list); + + pkt->pipe = pipe; +} + +void usbhs_pkt_pop(struct usbhs_pkt *pkt) +{ + list_del_init(&pkt->node); +} + +struct usbhs_pkt *usbhs_pkt_get(struct usbhs_pipe *pipe) +{ + if (list_empty(&pipe->list)) + return NULL; + + return list_entry(pipe->list.next, struct usbhs_pkt, node); +} + /* * FIFO ctrl */ -- cgit v1.2.1