| gpiobus.c (274643) | gpiobus.c (274670) |
|---|---|
| 1/*- 2 * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org> 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 --- 11 unchanged lines hidden (view full) --- 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 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org> 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 --- 11 unchanged lines hidden (view full) --- 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 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/dev/gpio/gpiobus.c 274643 2014-11-18 02:41:35Z loos $"); | 28__FBSDID("$FreeBSD: head/sys/dev/gpio/gpiobus.c 274670 2014-11-18 17:22:08Z loos $"); |
| 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> | 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> |
| 33#include <sys/gpio.h> |
|
| 33#include <sys/kernel.h> 34#include <sys/malloc.h> 35#include <sys/module.h> 36 37#include <dev/gpio/gpiobusvar.h> 38 39#include "gpiobus_if.h" 40 --- 24 unchanged lines hidden (view full) --- 65static void gpiobus_release_bus(device_t, device_t); 66static int gpiobus_pin_setflags(device_t, device_t, uint32_t, uint32_t); 67static int gpiobus_pin_getflags(device_t, device_t, uint32_t, uint32_t*); 68static int gpiobus_pin_getcaps(device_t, device_t, uint32_t, uint32_t*); 69static int gpiobus_pin_set(device_t, device_t, uint32_t, unsigned int); 70static int gpiobus_pin_get(device_t, device_t, uint32_t, unsigned int*); 71static int gpiobus_pin_toggle(device_t, device_t, uint32_t); 72 | 34#include <sys/kernel.h> 35#include <sys/malloc.h> 36#include <sys/module.h> 37 38#include <dev/gpio/gpiobusvar.h> 39 40#include "gpiobus_if.h" 41 --- 24 unchanged lines hidden (view full) --- 66static void gpiobus_release_bus(device_t, device_t); 67static int gpiobus_pin_setflags(device_t, device_t, uint32_t, uint32_t); 68static int gpiobus_pin_getflags(device_t, device_t, uint32_t, uint32_t*); 69static int gpiobus_pin_getcaps(device_t, device_t, uint32_t, uint32_t*); 70static int gpiobus_pin_set(device_t, device_t, uint32_t, unsigned int); 71static int gpiobus_pin_get(device_t, device_t, uint32_t, unsigned int*); 72static int gpiobus_pin_toggle(device_t, device_t, uint32_t); 73 |
| 74int 75gpio_check_flags(uint32_t caps, uint32_t flags) 76{ 77 78 /* Check for unwanted flags. */ 79 if ((flags & caps) == 0 || (flags & caps) != flags) 80 return (EINVAL); 81 /* Cannot mix input/output together. */ 82 if (flags & GPIO_PIN_INPUT && flags & GPIO_PIN_OUTPUT) 83 return (EINVAL); 84 /* Cannot mix pull-up/pull-down together. */ 85 if (flags & GPIO_PIN_PULLUP && flags & GPIO_PIN_PULLDOWN) 86 return (EINVAL); 87 88 return (0); 89} 90 |
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| 73static void 74gpiobus_print_pins(struct gpiobus_ivar *devi, char *buf, size_t buflen) 75{ 76 char tmp[128]; 77 int i, range_start, range_stop, need_coma; 78 79 if (devi->npins == 0) 80 return; --- 404 unchanged lines hidden (view full) --- 485} 486 487static int 488gpiobus_pin_setflags(device_t dev, device_t child, uint32_t pin, 489 uint32_t flags) 490{ 491 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev); 492 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child); | 91static void 92gpiobus_print_pins(struct gpiobus_ivar *devi, char *buf, size_t buflen) 93{ 94 char tmp[128]; 95 int i, range_start, range_stop, need_coma; 96 97 if (devi->npins == 0) 98 return; --- 404 unchanged lines hidden (view full) --- 503} 504 505static int 506gpiobus_pin_setflags(device_t dev, device_t child, uint32_t pin, 507 uint32_t flags) 508{ 509 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev); 510 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child); |
| 511 uint32_t caps; |
|
| 493 494 if (pin >= devi->npins) 495 return (EINVAL); | 512 513 if (pin >= devi->npins) 514 return (EINVAL); |
| 515 if (GPIO_PIN_GETCAPS(sc->sc_dev, devi->pins[pin], &caps) != 0) 516 return (EINVAL); 517 if (gpio_check_flags(caps, flags) != 0) 518 return (EINVAL); |
|
| 496 | 519 |
| 497 return GPIO_PIN_SETFLAGS(sc->sc_dev, devi->pins[pin], flags); | 520 return (GPIO_PIN_SETFLAGS(sc->sc_dev, devi->pins[pin], flags)); |
| 498} 499 500static int 501gpiobus_pin_getflags(device_t dev, device_t child, uint32_t pin, 502 uint32_t *flags) 503{ 504 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev); 505 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child); --- 106 unchanged lines hidden --- | 521} 522 523static int 524gpiobus_pin_getflags(device_t dev, device_t child, uint32_t pin, 525 uint32_t *flags) 526{ 527 struct gpiobus_softc *sc = GPIOBUS_SOFTC(dev); 528 struct gpiobus_ivar *devi = GPIOBUS_IVAR(child); --- 106 unchanged lines hidden --- |