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NetBSD/sys/dev/gpio/files.gpio

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gpiopwm(4) is a driver to pulse GPIO pins in software. This obsoletes the software pulsing facilities in gpio(4) (and gpioctl(8)) which will later be removed.
2011-11-13 16:33:00 +04:00
# $NetBSD: files.gpio,v 1.10 2011/11/13 12:33:00 mbalmer Exp $
Import general purpose I/O framework from OpenBSD.
2005-09-27 06:34:02 +04:00
Add the flag locator (missed in the previous commit).
2011-10-02 14:01:25 +04:00
define gpio {[offset = -1], [mask = 0], [flag = 0]}
Import general purpose I/O framework from OpenBSD.
2005-09-27 06:34:02 +04:00
device gpio: gpio
attach gpio at gpiobus
file dev/gpio/gpio.c gpio needs-flag
Dallas Semiconductor 1-Wire bus support, from OpenBSD. Currently includes gpioow(4), attaching a bit-banging driver via a GPIO pin. Also, owtemp(4) which supports some of the 1-Wire temperature sensors, including the DS18b20 and DS1920 - temperatures are returned via the envsys(4) framework. Original drivers by Alexander Yurchenko (grange@openbsd), with envsys(4) support and a fix to the 1-wire search algorithm (for discovering devices on the bus) by me. As discussed on tech-kern earlier this week.
2006-04-07 22:55:21 +04:00
Rework the GPIO framework. Tie it to the kauth(9) framework to control access to the GPIO pins. Device drivers using GPIO pins can now be attached and detached at runtime. GPIO pins can be named for easier reference from userland programs. Introduce a new gpiosim(4) driver, which is used for development. Reviewed by many.
2009-07-25 20:17:10 +04:00
# GPIO simulator
Do not attach gpiosim(4) at root, but make it a pseudo device. With help from Matthias Drochner, thanks!
2009-07-27 21:40:57 +04:00
defpseudodev gpiosim: gpiobus
file dev/gpio/gpiosim.c gpiosim
Rework the GPIO framework. Tie it to the kauth(9) framework to control access to the GPIO pins. Device drivers using GPIO pins can now be attached and detached at runtime. GPIO pins can be named for easier reference from userland programs. Introduce a new gpiosim(4) driver, which is used for development. Reviewed by many.
2009-07-25 20:17:10 +04:00
gpioiic(4), a driver to do use GPIO pins in bit-banging mode to form an I2C bus. Ported from OpenBSD.
2009-08-09 12:18:00 +04:00
# I2C bus bit-banging
device gpioiic: i2cbus, i2c_bitbang
attach gpioiic at gpio
file dev/gpio/gpioiic.c gpioiic
Rework the GPIO framework. Tie it to the kauth(9) framework to control access to the GPIO pins. Device drivers using GPIO pins can now be attached and detached at runtime. GPIO pins can be named for easier reference from userland programs. Introduce a new gpiosim(4) driver, which is used for development. Reviewed by many.
2009-07-25 20:17:10 +04:00
# 1-Wire bus bit-banging
Dallas Semiconductor 1-Wire bus support, from OpenBSD. Currently includes gpioow(4), attaching a bit-banging driver via a GPIO pin. Also, owtemp(4) which supports some of the 1-Wire temperature sensors, including the DS18b20 and DS1920 - temperatures are returned via the envsys(4) framework. Original drivers by Alexander Yurchenko (grange@openbsd), with envsys(4) support and a fix to the 1-wire search algorithm (for discovering devices on the bus) by me. As discussed on tech-kern earlier this week.
2006-04-07 22:55:21 +04:00
device gpioow: onewirebus, onewire_bitbang
attach gpioow at gpio
file dev/gpio/gpioow.c gpioow
Add support for multi-position electro-mechanical keylocks. An example driver, gpiolock(4), is provided as an example how to interface real hardware. A new securemodel, securemodel_keylock, is provided to show how this can be used to tie keylocks to overall system security. This is experimental code. The diff has been on tech-kern for several weeks. Reviewed by many, kauth(9) integration reviewed by Elad Efrat; approved by tonnerre@ and tron@. Thanks to everyone who provided feedback.
2009-08-15 01:17:21 +04:00
# Keylock
device gpiolock: gpiobus
attach gpiolock at gpio
file dev/gpio/gpiolock.c gpiolock
gpiopwm(4) is a driver to pulse GPIO pins in software. This obsoletes the software pulsing facilities in gpio(4) (and gpioctl(8)) which will later be removed.
2011-11-13 16:33:00 +04:00
# PWM
device gpiopwm: gpiobus
attach gpiopwm at gpio
file dev/gpio/gpiopwm.c gpiopwm