diff options
Diffstat (limited to 'drivers/usb/gadget/ci13xxx_udc.c')
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index 9db7e7667c2b..8956a2448b33 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -182,6 +182,16 @@ static inline int hw_ep_bit(int num, int dir) return num + (dir ? 16 : 0); } +static int ep_to_bit(int n) +{ + int fill = 16 - hw_ep_max / 2; + + if (n >= hw_ep_max / 2) + n += fill; + + return n; +} + /** * hw_aread: reads from register bitfield * @addr: address relative to bus map @@ -440,12 +450,13 @@ static int hw_ep_get_halt(int num, int dir) /** * hw_test_and_clear_setup_status: test & clear setup status (execute without * interruption) - * @n: bit number (endpoint) + * @n: endpoint number * * This function returns setup status */ static int hw_test_and_clear_setup_status(int n) { + n = ep_to_bit(n); return hw_ctest_and_clear(CAP_ENDPTSETUPSTAT, BIT(n)); } @@ -641,12 +652,13 @@ static int hw_register_write(u16 addr, u32 data) /** * hw_test_and_clear_complete: test & clear complete status (execute without * interruption) - * @n: bit number (endpoint) + * @n: endpoint number * * This function returns complete status */ static int hw_test_and_clear_complete(int n) { + n = ep_to_bit(n); return hw_ctest_and_clear(CAP_ENDPTCOMPLETE, BIT(n)); } |