mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-08 08:31:52 +00:00
74a98425ef
Previously the USB RAM size was off by a factor of two for chips that required 32-bit alignment of accesses, even though the underlying memory was 16-bits in size. This change adds an additional configuration for the access size (it still assumes that the underlying memory is 16-bits in size) and uses that to adjust the USB_RAM memory section in the linker scripts. This change also removes the default values for the USB RAM from stm32/config_chip.h because they mask issues when new chips are added. It is better for a new chip to fail to compile until these values are provided. Finally, this change introduces a common USB API header so that common code doesn't need to include the STM32 specific header. Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=make buildall -j Enable console on ryu_p2 and discovery-stm32f072 board Verify that it works on both Change-Id: Id118627f53e9e8ff1bd09fb51f1f9634ff495d19 Reviewed-on: https://chromium-review.googlesource.com/228833 Tested-by: Anton Staaf <robotboy@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Anton Staaf <robotboy@chromium.org>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* USB API definitions.
|
|
*
|
|
* This file includes definitions needed by common code that wants to control
|
|
* the state of the USB peripheral, but doesn't need to know about the specific
|
|
* implementation.
|
|
*/
|
|
|
|
#ifndef USB_API_H
|
|
#define USB_API_H
|
|
|
|
/*
|
|
* Initialize the USB peripheral, enabling its clock and configuring the DP/DN
|
|
* GPIOs correctly. This function is called via an init hook, but may need to
|
|
* be called again if usb_release is called. This function will call
|
|
* usb_connect by default unless CONFIG_USB_INHIBIT is defined.
|
|
*/
|
|
void usb_init(void);
|
|
|
|
/*
|
|
* Enable the pullup on the DP line to signal that this device exists to the
|
|
* host and to start the enumeration process.
|
|
*/
|
|
void usb_connect(void);
|
|
|
|
/*
|
|
* Disable the pullup on the DP line. This causes the device to be disconnected
|
|
* from the host.
|
|
*/
|
|
void usb_disconnect(void);
|
|
|
|
/*
|
|
* Disconnect from the host by calling usb_disconnect and then turn off the USB
|
|
* peripheral, releasing its GPIOs and disabling its clock.
|
|
*/
|
|
void usb_release(void);
|
|
|
|
#endif /* USB_API_H */
|