rtwn_usb_reg.h

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    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  * $FreeBSD$
   17  */
   18 
   19 #ifndef RTWN_USB_REG_H
   20 #define RTWN_USB_REG_H
   21 
   22 static __inline uint16_t
   23 rtwn_usb_calc_tx_checksum(void *buf)
   24 {
   25         uint16_t sum = 0;
   26         int i;
   27 
   28         /* NB: checksum calculation takes into account only first 32 bytes. */
   29         for (i = 0; i < 32 / 2; i++)
   30                 sum ^= ((uint16_t *)buf)[i];
   31 
   32         return (sum);           /* NB: already little endian. */
   33 }
   34 
   35 int             rtwn_usb_write_region_1(struct rtwn_softc *, uint16_t,
   36                     uint8_t *, int);
   37 int             rtwn_usb_write_1(struct rtwn_softc *, uint16_t, uint8_t);
   38 int             rtwn_usb_write_2(struct rtwn_softc *, uint16_t, uint16_t);
   39 int             rtwn_usb_write_4(struct rtwn_softc *, uint16_t, uint32_t);
   40 uint8_t         rtwn_usb_read_1(struct rtwn_softc *, uint16_t);
   41 uint16_t        rtwn_usb_read_2(struct rtwn_softc *, uint16_t);
   42 uint32_t        rtwn_usb_read_4(struct rtwn_softc *, uint16_t);
   43 void            rtwn_usb_delay(struct rtwn_softc *, int);
   44 
   45 #endif  /* RTWN_USB_REG_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/rtwn/usb/rtwn_usb_reg.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/rtwn/usb/rtwn_usb_reg.h