1*855feb68SLuiz Otavio O Souza /*- 2*855feb68SLuiz Otavio O Souza * Copyright 2014 Luiz Otavio O Souza <loos@freebsd.org> 3*855feb68SLuiz Otavio O Souza * All rights reserved. 4*855feb68SLuiz Otavio O Souza * 5*855feb68SLuiz Otavio O Souza * Redistribution and use in source and binary forms, with or without 6*855feb68SLuiz Otavio O Souza * modification, are permitted provided that the following conditions 7*855feb68SLuiz Otavio O Souza * are met: 8*855feb68SLuiz Otavio O Souza * 1. Redistributions of source code must retain the above copyright 9*855feb68SLuiz Otavio O Souza * notice, this list of conditions and the following disclaimer. 10*855feb68SLuiz Otavio O Souza * 2. Redistributions in binary form must reproduce the above copyright 11*855feb68SLuiz Otavio O Souza * notice, this list of conditions and the following disclaimer in the 12*855feb68SLuiz Otavio O Souza * documentation and/or other materials provided with the distribution. 13*855feb68SLuiz Otavio O Souza * 14*855feb68SLuiz Otavio O Souza * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15*855feb68SLuiz Otavio O Souza * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*855feb68SLuiz Otavio O Souza * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*855feb68SLuiz Otavio O Souza * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18*855feb68SLuiz Otavio O Souza * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19*855feb68SLuiz Otavio O Souza * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20*855feb68SLuiz Otavio O Souza * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21*855feb68SLuiz Otavio O Souza * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22*855feb68SLuiz Otavio O Souza * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23*855feb68SLuiz Otavio O Souza * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*855feb68SLuiz Otavio O Souza * SUCH DAMAGE. 25*855feb68SLuiz Otavio O Souza * 26*855feb68SLuiz Otavio O Souza * $FreeBSD$ 27*855feb68SLuiz Otavio O Souza */ 28*855feb68SLuiz Otavio O Souza 29*855feb68SLuiz Otavio O Souza #ifndef _TI_ADCVAR_H_ 30*855feb68SLuiz Otavio O Souza #define _TI_ADCVAR_H_ 31*855feb68SLuiz Otavio O Souza 32*855feb68SLuiz Otavio O Souza #define TI_ADC_NPINS 7 33*855feb68SLuiz Otavio O Souza 34*855feb68SLuiz Otavio O Souza #define ADC_READ4(_sc, reg) bus_read_4((_sc)->sc_mem_res, reg) 35*855feb68SLuiz Otavio O Souza #define ADC_WRITE4(_sc, reg, value) \ 36*855feb68SLuiz Otavio O Souza bus_write_4((_sc)->sc_mem_res, reg, value) 37*855feb68SLuiz Otavio O Souza 38*855feb68SLuiz Otavio O Souza struct ti_adc_softc { 39*855feb68SLuiz Otavio O Souza device_t sc_dev; 40*855feb68SLuiz Otavio O Souza int sc_last_state; 41*855feb68SLuiz Otavio O Souza struct mtx sc_mtx; 42*855feb68SLuiz Otavio O Souza struct resource *sc_mem_res; 43*855feb68SLuiz Otavio O Souza struct resource *sc_irq_res; 44*855feb68SLuiz Otavio O Souza void *sc_intrhand; 45*855feb68SLuiz Otavio O Souza }; 46*855feb68SLuiz Otavio O Souza 47*855feb68SLuiz Otavio O Souza struct ti_adc_input { 48*855feb68SLuiz Otavio O Souza int32_t enable; /* input enabled */ 49*855feb68SLuiz Otavio O Souza int32_t samples; /* samples average */ 50*855feb68SLuiz Otavio O Souza int32_t input; /* input number */ 51*855feb68SLuiz Otavio O Souza int32_t value; /* raw converted value */ 52*855feb68SLuiz Otavio O Souza uint32_t stepconfig; /* step config register */ 53*855feb68SLuiz Otavio O Souza uint32_t stepdelay; /* step delay register */ 54*855feb68SLuiz Otavio O Souza struct ti_adc_softc *sc; /* pointer to adc softc */ 55*855feb68SLuiz Otavio O Souza }; 56*855feb68SLuiz Otavio O Souza 57*855feb68SLuiz Otavio O Souza #define TI_ADC_LOCK(_sc) \ 58*855feb68SLuiz Otavio O Souza mtx_lock(&(_sc)->sc_mtx) 59*855feb68SLuiz Otavio O Souza #define TI_ADC_UNLOCK(_sc) \ 60*855feb68SLuiz Otavio O Souza mtx_unlock(&(_sc)->sc_mtx) 61*855feb68SLuiz Otavio O Souza #define TI_ADC_LOCK_INIT(_sc) \ 62*855feb68SLuiz Otavio O Souza mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \ 63*855feb68SLuiz Otavio O Souza "ti_adc", MTX_DEF) 64*855feb68SLuiz Otavio O Souza #define TI_ADC_LOCK_DESTROY(_sc) \ 65*855feb68SLuiz Otavio O Souza mtx_destroy(&_sc->sc_mtx); 66*855feb68SLuiz Otavio O Souza #define TI_ADC_LOCK_ASSERT(_sc) \ 67*855feb68SLuiz Otavio O Souza mtx_assert(&(_sc)->sc_mtx, MA_OWNED) 68*855feb68SLuiz Otavio O Souza 69*855feb68SLuiz Otavio O Souza #endif /* _TI_ADCVAR_H_ */ 70