99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
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/*
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* Copyright (c) 2008 Travis Geiselbrecht
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __DEV_USBC_H
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#define __DEV_USBC_H
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#include <sys/types.h>
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#include <debug.h>
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#include <hw/usb.h>
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void usbc_init(void);
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typedef uint ep_t;
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typedef enum {
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IN = 0,
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OUT
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} ep_dir_t;
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typedef enum {
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CB_RESET,
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CB_SUSPEND,
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CB_RESUME,
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CB_DISCONNECT,
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CB_ONLINE,
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CB_OFFLINE,
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CB_SETUP_MSG,
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/* endpoint transfer stuff */
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CB_EP_RXCOMPLETE,
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CB_EP_TXCOMPLETE,
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CB_EP_TRANSFER_CANCELLED,
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} usbc_callback_op_t;
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typedef struct {
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void *buf;
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size_t buflen;
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uint bufpos;
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int result;
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void *extra; // extra pointer to store whatever you want
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} usbc_transfer;
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enum {
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USB_TRANSFER_RESULT_OK = 0,
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USB_TRANSFER_RESULT_ERR = -1,
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USB_TRANSFER_RESULT_CANCELLED = -2,
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};
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typedef int (*ep_callback)(ep_t endpoint, usbc_callback_op_t op, usbc_transfer *transfer);
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void usbc_setup_endpoint(ep_t ep, ep_dir_t dir, bool active, ep_callback callback, uint width, uint blocksize);
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int usbc_queue_rx(ep_t ep, usbc_transfer *transfer);
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int usbc_queue_tx(ep_t ep, usbc_transfer *transfer);
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/* setup arg is valid during CB_SETUP_MSG */
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union usb_callback_args {
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const struct usb_setup *setup;
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};
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typedef int (*usb_callback)(usbc_callback_op_t op, const union usb_callback_args *args);
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int usbc_set_callback(usb_callback);
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int usbc_set_active(bool active);
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/* called back from within a callback to handle setup responses */
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void usbc_ep0_ack(void);
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void usbc_ep0_stall(void);
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void usbc_ep0_send(const void *buf, size_t len, size_t maxlen);
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void usbc_ep0_recv(void *buf, size_t len, ep_callback);
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bool usbc_is_highspeed(void);
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static inline void usbc_dump_transfer(const usbc_transfer *t)
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{
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printf("usb transfer %p: buf %p, buflen %zd, bufpos %u, result %d\n", t, t->buf, t->buflen, t->bufpos, t->result);
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}
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#endif
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