46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
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/*-
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* Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#ifndef RTWN_USB_REG_H
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#define RTWN_USB_REG_H
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static __inline uint16_t
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rtwn_usb_calc_tx_checksum(void *buf)
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{
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uint16_t sum = 0;
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int i;
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/* NB: checksum calculation takes into account only first 32 bytes. */
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for (i = 0; i < 32 / 2; i++)
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sum ^= ((uint16_t *)buf)[i];
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return (sum); /* NB: already little endian. */
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}
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int rtwn_usb_write_region_1(struct rtwn_softc *, uint16_t,
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uint8_t *, int);
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int rtwn_usb_write_1(struct rtwn_softc *, uint16_t, uint8_t);
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int rtwn_usb_write_2(struct rtwn_softc *, uint16_t, uint16_t);
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int rtwn_usb_write_4(struct rtwn_softc *, uint16_t, uint32_t);
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uint8_t rtwn_usb_read_1(struct rtwn_softc *, uint16_t);
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uint16_t rtwn_usb_read_2(struct rtwn_softc *, uint16_t);
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uint32_t rtwn_usb_read_4(struct rtwn_softc *, uint16_t);
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void rtwn_usb_delay(struct rtwn_softc *, int);
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#endif /* RTWN_USB_REG_H */
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