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Diffstat (limited to 'chip/stm32/usb_dwc_hw.h')
| -rw-r--r-- | chip/stm32/usb_dwc_hw.h | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/chip/stm32/usb_dwc_hw.h b/chip/stm32/usb_dwc_hw.h deleted file mode 100644 index d1fe07cb87..0000000000 --- a/chip/stm32/usb_dwc_hw.h +++ /dev/null @@ -1,106 +0,0 @@ -/* Copyright 2016 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. - */ - -#ifndef __CROS_EC_USB_DWC_HW_H -#define __CROS_EC_USB_DWC_HW_H - -#include "usb_dwc_registers.h" - -/* Helpers for endpoint declaration */ -#define _EP_HANDLER2(num, suffix) CONCAT3(ep_, num, suffix) -#define _EP_TX_HANDLER(num) _EP_HANDLER2(num, _tx) -#define _EP_RX_HANDLER(num) _EP_HANDLER2(num, _rx) -#define _EP_EVENT_HANDLER(num) _EP_HANDLER2(num, _evt) -/* Used to check function types are correct (attribute alias does not do it) */ -#define _EP_TX_HANDLER_TYPECHECK(num) _EP_HANDLER2(num, _tx_typecheck) -#define _EP_RX_HANDLER_TYPECHECK(num) _EP_HANDLER2(num, _rx_typecheck) -#define _EP_EVENT_HANDLER_TYPECHECK(num) _EP_HANDLER2(num, _evt_typecheck) - -#define USB_DECLARE_EP(num, tx_handler, rx_handler, evt_handler) \ - void _EP_TX_HANDLER(num)(void) \ - __attribute__ ((alias(STRINGIFY(tx_handler)))); \ - void _EP_RX_HANDLER(num)(void) \ - __attribute__ ((alias(STRINGIFY(rx_handler)))); \ - void _EP_EVENT_HANDLER(num)(enum usb_ep_event evt) \ - __attribute__ ((alias(STRINGIFY(evt_handler)))); \ - static __unused void \ - (*_EP_TX_HANDLER_TYPECHECK(num))(void) = tx_handler; \ - static __unused void \ - (*_EP_RX_HANDLER_TYPECHECK(num))(void) = rx_handler; \ - static __unused void \ - (*_EP_EVENT_HANDLER_TYPECHECK(num))(enum usb_ep_event evt)\ - = evt_handler - -/* Endpoint callbacks */ -extern void (*usb_ep_tx[]) (void); -extern void (*usb_ep_rx[]) (void); -extern void (*usb_ep_event[]) (enum usb_ep_event evt); -struct usb_setup_packet; -/* EP0 Interface handler callbacks */ -extern int (*usb_iface_request[]) (struct usb_setup_packet *req); - - -/* True if the HW Rx/OUT FIFO is currently listening. */ -int rx_ep_is_active(uint32_t ep_num); - -/* Number of bytes the HW Rx/OUT FIFO has for us. - * - * @param ep_num USB endpoint - * - * @returns number of bytes ready, zero if none. - */ -int rx_ep_pending(uint32_t ep_num); - -/* True if the Tx/IN FIFO can take some bytes from us. */ -int tx_ep_is_ready(uint32_t ep_num); - -/* Write packets of data IN to the host. - * - * This function uses DMA, so the *data write buffer - * must persist until the write completion event. - * - * @param ep_num USB endpoint to write - * @param len number of bytes to write - * @param data pointer of data to write - * - * @return bytes written - */ -int usb_write_ep(uint32_t ep_num, int len, void *data); - -/* Read a packet of data OUT from the host. - * - * This function uses DMA, so the *data write buffer - * must persist until the read completion event. - * - * @param ep_num USB endpoint to read - * @param len number of bytes to read - * @param data pointer of data to read - * - * @return EC_SUCCESS on success - */ -int usb_read_ep(uint32_t ep_num, int len, void *data); - -/* Tx/IN interrupt handler */ -void usb_epN_tx(uint32_t ep_num); - -/* Rx/OUT endpoint interrupt handler */ -void usb_epN_rx(uint32_t ep_num); - -/* Reset endpoint HW block. */ -void epN_reset(uint32_t ep_num); - -/* - * Declare any interface-specific control request handlers. These Setup packets - * arrive on the control endpoint (EP0), but are handled by the interface code. - * The callback must prepare the EP0 IN or OUT FIFOs and return the number of - * bytes placed in the IN FIFO. A negative return value will STALL the response - * (and thus indicate error to the host). - */ -#define _IFACE_HANDLER(num) CONCAT3(iface_, num, _request) -#define USB_DECLARE_IFACE(num, handler) \ - int _IFACE_HANDLER(num)(struct usb_setup_packet *req) \ - __attribute__ ((alias(STRINGIFY(handler)))) - -#endif /* __CROS_EC_USB_DWC_HW_H */ |