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author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2012-10-22 22:14:57 +0200 |
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committer | Felipe Balbi <balbi@ti.com> | 2012-10-31 15:01:15 +0200 |
commit | bcb2f99c6c43a8da6cb4002e8b0acf6f1275f3a8 (patch) | |
tree | 290cfa3262734c9010bd08dbf22cf45498e77bd9 /drivers/usb/gadget/f_ncm.c | |
parent | fad8deb274edcef1c8ca38946338f5f4f8126fe2 (diff) | |
download | op-kernel-dev-bcb2f99c6c43a8da6cb4002e8b0acf6f1275f3a8.zip op-kernel-dev-bcb2f99c6c43a8da6cb4002e8b0acf6f1275f3a8.tar.gz |
usb: gadget: use a computation macro for INT endpoint interval
The 5+4 magic for HS tries to aim 32ms which is also what is intended
with 1 << 5 for FS. This little macro should make this easier to
understand.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/f_ncm.c')
-rw-r--r-- | drivers/usb/gadget/f_ncm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index b651b52..4f09500 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -121,7 +121,7 @@ static struct usb_cdc_ncm_ntb_parameters ntb_parameters = { * waste less bandwidth. */ -#define LOG2_STATUS_INTERVAL_MSEC 5 /* 1 << 5 == 32 msec */ +#define NCM_STATUS_INTERVAL_MS 32 #define NCM_STATUS_BYTECOUNT 16 /* 8 byte header + data */ static struct usb_interface_assoc_descriptor ncm_iad_desc __initdata = { @@ -230,7 +230,7 @@ static struct usb_endpoint_descriptor fs_ncm_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, .wMaxPacketSize = cpu_to_le16(NCM_STATUS_BYTECOUNT), - .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC, + .bInterval = NCM_STATUS_INTERVAL_MS, }; static struct usb_endpoint_descriptor fs_ncm_in_desc __initdata = { @@ -275,7 +275,7 @@ static struct usb_endpoint_descriptor hs_ncm_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, .wMaxPacketSize = cpu_to_le16(NCM_STATUS_BYTECOUNT), - .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, + .bInterval = USB_MS_TO_HS_INTERVAL(NCM_STATUS_INTERVAL_MS), }; static struct usb_endpoint_descriptor hs_ncm_in_desc __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, |