f3a72e40b5
- Enhanced Direct Memory Access Controller (eDMA) - Direct Memory Access Multiplexer (DMAMUX)
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/*-
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* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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int dmamux_configure(int mux, int source, int channel, int enable);
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enum mux_num {
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MUX0,
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MUX1,
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MUX2,
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MUX3,
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};
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enum mux_grp {
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MUXGRP0, /* MUX[0,3] */
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MUXGRP1, /* MUX[1,2] */
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};
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/* DMAMUX */
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#define MUX_READ1(_sc, _mux, _reg) \
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bus_space_read_1(_sc->bst[_mux], _sc->bsh[_mux], _reg)
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#define MUX_WRITE1(_sc, _mux, _reg, _val) \
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bus_space_write_1(_sc->bst[_mux], _sc->bsh[_mux], _reg, _val)
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