From cc9e6c495b0a37cc4f7003e470bcbb15ea760377 Mon Sep 17 00:00:00 2001 From: Michael Grzeschik Date: Thu, 13 Jun 2013 17:59:53 +0300 Subject: usb: chipidea: udc: manage dynamic amount of tds with a linked list Instead of having a limited number of usable tds in the udc we use a linked list to support dynamic amount of needed tds for all special gadget types. This improves throughput. Signed-off-by: Michael Grzeschik Reviewed-by: Felipe Balbi Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/debug.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) (limited to 'drivers/usb/chipidea/debug.c') diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index 36a7063a6cba..64b8c32d4f33 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -162,6 +162,7 @@ static int ci_requests_show(struct seq_file *s, void *data) unsigned long flags; struct list_head *ptr = NULL; struct ci13xxx_req *req = NULL; + struct td_node *node, *tmpnode; unsigned i, j, qsize = sizeof(struct ci13xxx_td)/sizeof(u32); if (ci->role != CI_ROLE_GADGET) { @@ -174,13 +175,17 @@ static int ci_requests_show(struct seq_file *s, void *data) list_for_each(ptr, &ci->ci13xxx_ep[i].qh.queue) { req = list_entry(ptr, struct ci13xxx_req, queue); - seq_printf(s, "EP=%02i: TD=%08X %s\n", - i % (ci->hw_ep_max / 2), (u32)req->dma, - ((i < ci->hw_ep_max/2) ? "RX" : "TX")); - - for (j = 0; j < qsize; j++) - seq_printf(s, " %04X: %08X\n", j, - *((u32 *)req->ptr + j)); + list_for_each_entry_safe(node, tmpnode, &req->tds, td) { + seq_printf(s, "EP=%02i: TD=%08X %s\n", + i % (ci->hw_ep_max / 2), + (u32)node->dma, + ((i < ci->hw_ep_max/2) ? + "RX" : "TX")); + + for (j = 0; j < qsize; j++) + seq_printf(s, " %04X: %08X\n", j, + *((u32 *)node->ptr + j)); + } } spin_unlock_irqrestore(&ci->lock, flags); -- cgit v1.2.3