diff options
| author | David Lamparter <equinox@diac24.net> | 2018-05-26 15:59:14 +0300 |
|---|---|---|
| committer | Karl Palsson <karlp@tweak.net.au> | 2018-08-27 18:11:32 +0300 |
| commit | ebcf1978106322e92a7b1f53b58a33c6ff432cbd (patch) | |
| tree | 50c852a29f862b24078ff182dfd09e01b46b639b | |
| parent | 343cff467513759e1fdaa28deff0879350ad9c44 (diff) | |
usb: make usb_disconnect() weak
usb_disconnect() is board/platform specific for chips that don't have
built-in handling for this. Allow the application to provide its own
version of usb_disconnect() to handle this.
See https://github.com/libopencm3/libopencm3/pull/924
| -rw-r--r-- | include/libopencm3/usb/usbd.h | 7 | ||||
| -rw-r--r-- | lib/usb/usb.c | 3 |
2 files changed, 8 insertions, 2 deletions
diff --git a/include/libopencm3/usb/usbd.h b/include/libopencm3/usb/usbd.h index fa9af67c..04452d9b 100644 --- a/include/libopencm3/usb/usbd.h +++ b/include/libopencm3/usb/usbd.h @@ -160,7 +160,12 @@ extern void usbd_register_set_altsetting_callback(usbd_device *usbd_dev, /* Functions to be provided by the hardware abstraction layer */ extern void usbd_poll(usbd_device *usbd_dev); -/** Disconnect, if supported by the driver */ +/** Disconnect, if supported by the driver + * + * This function is implemented as weak function and can be replaced by an + * application specific version to handle chips that don't have built-in + * handling for this (e.g. STM32F1.) + */ extern void usbd_disconnect(usbd_device *usbd_dev, bool disconnected); /** Setup an endpoint diff --git a/lib/usb/usb.c b/lib/usb/usb.c index cca6dde1..e2dd0c27 100644 --- a/lib/usb/usb.c +++ b/lib/usb/usb.c @@ -112,7 +112,8 @@ void usbd_poll(usbd_device *usbd_dev) usbd_dev->driver->poll(usbd_dev); } -void usbd_disconnect(usbd_device *usbd_dev, bool disconnected) +__attribute__((weak)) void usbd_disconnect(usbd_device *usbd_dev, + bool disconnected) { /* not all drivers support disconnection */ if (usbd_dev->driver->disconnect) { |