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usb: chipidea: udc: Use direction flags consequently 

This driver make assumptions about the value of the direction flags.
So better use them in comparisons to improve the readability.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
This commit is contained in:
Stefan Wahren 2016-08-11 17:19:13 +00:00 committed by Peter Chen
parent 9dba516ed2
commit c6ee9f2345
1 changed files with 11 additions and 11 deletions
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22
drivers/usb/chipidea/udc.c
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@ -59,7 +59,7 @@ ctrl_endpt_in_desc = {
*/
static inline int hw_ep_bit(int num, int dir)
{
return num + (dir ? 16 : 0);
return num + ((dir == TX) ? 16 : 0);
}
static inline int ep_to_bit(struct ci_hdrc *ci, int n)
@ -122,7 +122,7 @@ static int hw_ep_flush(struct ci_hdrc *ci, int num, int dir)
static int hw_ep_disable(struct ci_hdrc *ci, int num, int dir)
{
hw_write(ci, OP_ENDPTCTRL + num,
dir ? ENDPTCTRL_TXE : ENDPTCTRL_RXE, 0);
(dir == TX) ? ENDPTCTRL_TXE : ENDPTCTRL_RXE, 0);
return 0;
}
@ -138,7 +138,7 @@ static int hw_ep_enable(struct ci_hdrc *ci, int num, int dir, int type)
{
u32 mask, data;
if (dir) {
if (dir == TX) {
mask = ENDPTCTRL_TXT; /* type */
data = type << __ffs(mask);
@ -170,7 +170,7 @@ static int hw_ep_enable(struct ci_hdrc *ci, int num, int dir, int type)
*/
static int hw_ep_get_halt(struct ci_hdrc *ci, int num, int dir)
{
u32 mask = dir ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
u32 mask = (dir == TX) ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
return hw_read(ci, OP_ENDPTCTRL + num, mask) ? 1 : 0;
}
@ -220,8 +220,8 @@ static int hw_ep_set_halt(struct ci_hdrc *ci, int num, int dir, int value)
do {
enum ci_hw_regs reg = OP_ENDPTCTRL + num;
u32 mask_xs = dir ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
u32 mask_xr = dir ? ENDPTCTRL_TXR : ENDPTCTRL_RXR;
u32 mask_xs = (dir == TX) ? ENDPTCTRL_TXS : ENDPTCTRL_RXS;
u32 mask_xr = (dir == TX) ? ENDPTCTRL_TXR : ENDPTCTRL_RXR;
/* data toggle - reserved for EP0 but it's in ESS */
hw_write(ci, reg, mask_xs|mask_xr,
@ -587,7 +587,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
}
if (remaining_length) {
if (hwep->dir) {
if (hwep->dir == TX) {
hwreq->req.status = -EPROTO;
break;
}
@ -1048,9 +1048,9 @@ __acquires(ci->lock)
if (req.wLength != 0)
break;
num = le16_to_cpu(req.wIndex);
dir = num & USB_ENDPOINT_DIR_MASK;
dir = (num & USB_ENDPOINT_DIR_MASK) ? TX : RX;
num &= USB_ENDPOINT_NUMBER_MASK;
if (dir) /* TX */
if (dir == TX)
num += ci->hw_ep_max / 2;
if (!ci->ci_hw_ep[num].wedge) {
spin_unlock(&ci->lock);
@ -1100,9 +1100,9 @@ __acquires(ci->lock)
if (req.wLength != 0)
break;
num = le16_to_cpu(req.wIndex);
dir = num & USB_ENDPOINT_DIR_MASK;
dir = (num & USB_ENDPOINT_DIR_MASK) ? TX : RX;
num &= USB_ENDPOINT_NUMBER_MASK;
if (dir) /* TX */
if (dir == TX)
num += ci->hw_ep_max / 2;
spin_unlock(&ci->lock);