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dm: usb: Tidy up pipe value decoding

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Add a few more shifts/masks to make it easier to decode a pipe value (rather
than just building it). We need this for USB device emulation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2015-03-25 12:23:01 -06:00
parent 8e2b6619c5
commit 7caced5aae
1 changed files with 17 additions and 6 deletions
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23
include/usb_defs.h
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@ -165,12 +165,14 @@
#define USB_TEST_MODE_FORCE_ENABLE 0x05
/* "pipe" definitions */
#define PIPE_ISOCHRONOUS 0
#define PIPE_INTERRUPT 1
#define PIPE_CONTROL 2
#define PIPE_BULK 3
/*
* "pipe" definitions, use unsigned so we can compare reliably, since this
* value is shifted up to bits 30/31.
*/
#define PIPE_ISOCHRONOUS 0U
#define PIPE_INTERRUPT 1U
#define PIPE_CONTROL 2U
#define PIPE_BULK 3U
#define PIPE_DEVEP_MASK 0x0007ff00
#define USB_ISOCHRONOUS 0
@ -178,6 +180,15 @@
#define USB_CONTROL 2
#define USB_BULK 3
#define USB_PIPE_TYPE_SHIFT 30
#define USB_PIPE_TYPE_MASK (3 << USB_PIPE_TYPE_SHIFT)
#define USB_PIPE_DEV_SHIFT 8
#define USB_PIPE_DEV_MASK (0x7f << USB_PIPE_DEV_SHIFT)
#define USB_PIPE_EP_SHIFT 15
#define USB_PIPE_EP_MASK (0xf << USB_PIPE_EP_SHIFT)
/* USB-status codes: */
#define USB_ST_ACTIVE 0x1 /* TD is active */
#define USB_ST_STALLED 0x2 /* TD is stalled */