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| author | Brian J. Nemec <bnemec@chromium.org> | 2020-05-23 23:04:31 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-06-04 14:49:43 +0000 |
| commit | 11b912091e133568483e92b5aa7fadbf882e5e92 (patch) | |
| tree | 92d5786eb1fd01fbb66a131ef5b9a6855968c09f /chip/stm32/usb_hw.h | |
| parent | f5e6ae210518bae0dc9a577d98c80a805b764fce (diff) | |
| download | chrome-ec-11b912091e133568483e92b5aa7fadbf882e5e92.tar.gz | |
ec: Minor cleanup of magic number commonly used in STM32 USB
Minor cleanup of a commonly used magic number in the STM32
USB interface.
BUG=none
BRANCH=none
TEST=Builds
Signed-off-by: Brian Nemec <bnemec@chromium.org>
Change-Id: I2c0b7947810aae651e452db42ac27221ab19b99b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2224763
Tested-by: Brian Nemec <bnemec@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Commit-Queue: Brian Nemec <bnemec@chromium.org>
Diffstat (limited to 'chip/stm32/usb_hw.h')
| -rw-r--r-- | chip/stm32/usb_hw.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/stm32/usb_hw.h b/chip/stm32/usb_hw.h index be2a88661e..0c75322a7d 100644 --- a/chip/stm32/usb_hw.h +++ b/chip/stm32/usb_hw.h @@ -34,6 +34,9 @@ extern usb_uint __usb_ram_start[]; /* Attribute to define a buffer variable in USB RAM */ #define __usb_ram __attribute__((section(".usb_ram.99_data"))) +/* Mask for the rx_count to identify the number of bytes in the buffer. */ +#define RX_COUNT_MASK (0x3ff) + struct stm32_endpoint { volatile usb_uint tx_addr; volatile usb_uint tx_count; |