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 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