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authorStephen Warren <swarren@nvidia.com>2014-07-01 11:41:17 -0600
committerMarek Vasut <marex@denx.de>2014-07-02 15:45:38 +0200
commit6ac15fda4e2b9ad45b7769037964110f7f597b5c (patch)
tree4abffef41e7756864141c23a39a3b15209a6d9c2 /drivers
parent7e5418877550d8d7a9a2c5d73f93fc95ecd595a9 (diff)
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usb: ci_udc: remove controller.items array
There's no need to store an array of QTD pointers in the controller. Since the calculation is so simple, just have ci_get_qtd() perform it at run-time, rather than pre-calculating everything. Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/gadget/ci_udc.c8
-rw-r--r--drivers/usb/gadget/ci_udc.h1
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
index abaf898..8913867 100644
--- a/drivers/usb/gadget/ci_udc.c
+++ b/drivers/usb/gadget/ci_udc.c
@@ -146,7 +146,9 @@ static struct ept_queue_head *ci_get_qh(int ep_num, int dir_in)
*/
static struct ept_queue_item *ci_get_qtd(int ep_num, int dir_in)
{
- return controller.items[(ep_num * 2) + dir_in];
+ int index = (ep_num * 2) + dir_in;
+ uint8_t *imem = controller.items_mem + (index * ILIST_ENT_SZ);
+ return (struct ept_queue_item *)imem;
}
/**
@@ -790,7 +792,6 @@ static int ci_pullup(struct usb_gadget *gadget, int is_on)
static int ci_udc_probe(void)
{
struct ept_queue_head *head;
- uint8_t *imem;
int i;
const int num = 2 * NUM_ENDPOINTS;
@@ -831,9 +832,6 @@ static int ci_udc_probe(void)
head->next = TERMINATE;
head->info = 0;
- imem = controller.items_mem + (i * ILIST_ENT_SZ);
- controller.items[i] = (struct ept_queue_item *)imem;
-
if (i & 1) {
ci_flush_qh(i / 2);
ci_flush_qtd(i / 2);
diff --git a/drivers/usb/gadget/ci_udc.h b/drivers/usb/gadget/ci_udc.h
index c214402..346164a 100644
--- a/drivers/usb/gadget/ci_udc.h
+++ b/drivers/usb/gadget/ci_udc.h
@@ -102,7 +102,6 @@ struct ci_drv {
struct usb_gadget_driver *driver;
struct ehci_ctrl *ctrl;
struct ept_queue_head *epts;
- struct ept_queue_item *items[2 * NUM_ENDPOINTS];
uint8_t *items_mem;
struct ci_ep ep[NUM_ENDPOINTS];
};