lpbb.c (f1d19042b082d95f07a0027e596ba2405aa8a9a5) lpbb.c (bc35c17446fab005a7e11b67b9004736f1c8498b)
1/*-
2 * Copyright (c) 1998 Nicolas Souchu, Marc Bouget
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 1998 Nicolas Souchu, Marc Bouget
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: lpbb.c,v 1.2 1998/11/09 22:22:01 nsouch Exp $
26 * $Id: lpbb.c,v 1.3 1998/12/07 21:58:16 archie Exp $
27 *
28 */
29
30/*
31 * I2C Bit-Banging over parallel port
32 *
33 * See the Official Philips interface description in lpbb(4)
34 */

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235static int getSDA(struct lpbb_softc *sc)
236{
237if((ppb_rstr(&sc->lpbb_dev)&SDA_in)==SDA_in)
238 return 1;
239else
240 return 0;
241}
242
27 *
28 */
29
30/*
31 * I2C Bit-Banging over parallel port
32 *
33 * See the Official Philips interface description in lpbb(4)
34 */

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235static int getSDA(struct lpbb_softc *sc)
236{
237if((ppb_rstr(&sc->lpbb_dev)&SDA_in)==SDA_in)
238 return 1;
239else
240 return 0;
241}
242
243static int getSCL(struct lpbb_softc *sc)
244{
245if((ppb_rstr(&sc->lpbb_dev)&SCL_in)==SCL_in)
246 return 1;
247else
248 return 0;
249}
250
251static void setSDA(struct lpbb_softc *sc, char val)
252{
253if(val==0)
254 ppb_wdtr(&sc->lpbb_dev, (u_char)SDA_out);
255else
256 ppb_wdtr(&sc->lpbb_dev, (u_char)~SDA_out);
257}
258

--- 69 unchanged lines hidden --- 		243static void setSDA(struct lpbb_softc *sc, char val)
244{
245if(val==0)
246 ppb_wdtr(&sc->lpbb_dev, (u_char)SDA_out);
247else
248 ppb_wdtr(&sc->lpbb_dev, (u_char)~SDA_out);
249}
250

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