1 /*-
2 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef RTWN_USB_REG_H
18 #define RTWN_USB_REG_H
19
20 static __inline uint16_t
rtwn_usb_calc_tx_checksum(void * buf)21 rtwn_usb_calc_tx_checksum(void *buf)
22 {
23 uint16_t sum = 0;
24 int i;
25
26 /* NB: checksum calculation takes into account only first 32 bytes. */
27 for (i = 0; i < 32 / 2; i++)
28 sum ^= ((uint16_t *)buf)[i];
29
30 return (sum); /* NB: already little endian. */
31 }
32
33 int rtwn_usb_write_region_1(struct rtwn_softc *, uint16_t,
34 uint8_t *, int);
35 int rtwn_usb_write_1(struct rtwn_softc *, uint16_t, uint8_t);
36 int rtwn_usb_write_2(struct rtwn_softc *, uint16_t, uint16_t);
37 int rtwn_usb_write_4(struct rtwn_softc *, uint16_t, uint32_t);
38 uint8_t rtwn_usb_read_1(struct rtwn_softc *, uint16_t);
39 uint16_t rtwn_usb_read_2(struct rtwn_softc *, uint16_t);
40 uint32_t rtwn_usb_read_4(struct rtwn_softc *, uint16_t);
41 void rtwn_usb_delay(struct rtwn_softc *, int);
42
43 #endif /* RTWN_USB_REG_H */
44