| pcf.c (93165) | pcf.c (108533) |
|---|---|
| 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 * | 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 * $FreeBSD: head/sys/dev/pcf/pcf.c 93165 2002-03-25 21:22:35Z nsouch $ | 26 * $FreeBSD: head/sys/dev/pcf/pcf.c 108533 2003-01-01 18:49:04Z schweikh $ |
| 27 * 28 */ 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/bus.h> 34 --- 245 unchanged lines hidden (view full) --- 280} 281 282static int pcf_stop(device_t pcfdev) 283{ 284 struct pcf_softc *pcf = DEVTOSOFTC(pcfdev); 285 286 /* 287 * Send STOP condition iff the START condition was previously sent. | 27 * 28 */ 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/bus.h> 34 --- 245 unchanged lines hidden (view full) --- 280} 281 282static int pcf_stop(device_t pcfdev) 283{ 284 struct pcf_softc *pcf = DEVTOSOFTC(pcfdev); 285 286 /* 287 * Send STOP condition iff the START condition was previously sent. |
| 288 * STOP is sent only once even if a iicbus_stop() is called after | 288 * STOP is sent only once even if an iicbus_stop() is called after |
| 289 * an iicbus_read()... see pcf_read(): the pcf needs to send the stop 290 * before the last char is read. 291 */ 292 if (pcf->pcf_started) { 293 /* set stop condition and enable IT */ 294 PCF_SET_S1(pcf, PIN|ES0|ENI|STO|ACK); 295 296 pcf->pcf_started = 0; --- 336 unchanged lines hidden --- | 289 * an iicbus_read()... see pcf_read(): the pcf needs to send the stop 290 * before the last char is read. 291 */ 292 if (pcf->pcf_started) { 293 /* set stop condition and enable IT */ 294 PCF_SET_S1(pcf, PIN|ES0|ENI|STO|ACK); 295 296 pcf->pcf_started = 0; --- 336 unchanged lines hidden --- |