Date: Mon, 28 Nov 2011 23:12:55 +0100 From: Stefan Bethke <stb@lassitu.de> To: freebsd-embedded@freebsd.org Subject: TL-WR1043: LEDs Message-ID: <E612E671-6F2A-49A3-BF5D-A80FEF8AA583@lassitu.de>
next in thread | raw e-mail | index | archive | help
--Apple-Mail=_1774D2C1-62A7-427A-8EA3-CA8CD3BF121E
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=us-ascii
Here's a quick and dirty hack to use the ar71xx GPIO module to get the =
pin configuration from a hint.
Add
device gpio
device gpioled
to your kernel config to enable these. See gpioctl(1) and led(4) for =
how to control them. The buttons can be polled with gpioctl.
--=20
Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
--Apple-Mail=_1774D2C1-62A7-427A-8EA3-CA8CD3BF121E
Content-Disposition: attachment;
filename=patch-tl-wr1043nd-leds.txt
Content-Type: text/plain;
name="patch-tl-wr1043nd-leds.txt"
Content-Transfer-Encoding: quoted-printable
Index: mips/atheros/ar71xx_gpio.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- mips/atheros/ar71xx_gpio.c (revision 228073)
+++ mips/atheros/ar71xx_gpio.c (working copy)
@@ -349,6 +349,50 @@
}
=20
static int
+ar71xx_gpio_configure_from_hint(device_t dev)
+{
+ struct ar71xx_gpio_softc *sc =3D device_get_softc(dev);
+ const char *c, *d;
+ int i;
+=09
+ if (resource_string_value(device_get_name(dev),=20
+ device_get_unit(dev), "pins", &c))
+ return (ENXIO);
+ device_printf(dev, "pins=3D%s\n", c);
+ i =3D 0;
+ /* "1=3Do:usb,2=3Do:sys,3=3Di:reset,5=3Do:qss,7=3Di:qss,9=3Do:wlan=
" */
+ while (c) {
+ d =3D strchr(c, '=3D');
+ if (d =3D=3D NULL)
+ return (ENXIO);
+ sc->gpio_pins[i].gp_pin =3D strtol(c, NULL, 10);
+ sc->gpio_pins[i].gp_caps =3D DEFAULT_CAPS;
+ sc->gpio_pins[i].gp_flags =3D 0;
+ d++;
+ if (d[0] !=3D 'i' && d[0] !=3D 'o' && d[1] !=3D ':')
+ return (ENXIO);
+ ar71xx_gpio_pin_configure(sc, &sc->gpio_pins[i],
+ d[0] =3D=3D 'o' ? GPIO_PIN_OUTPUT : =
GPIO_PIN_INPUT);
+ d +=3D 2;
+ c =3D d;
+ d =3D strchr(d, ',');
+ if (d !=3D NULL) {
+ strncpy(sc->gpio_pins[i].gp_name, c,
+ d - c < GPIOMAXNAME ? d - c : =
GPIOMAXNAME);
+ c =3D d;
+ c++;
+ } else {
+ strncpy(sc->gpio_pins[i].gp_name, c, GPIOMAXNAME);
+ c =3D NULL;
+ }
+ device_printf(dev, "pin %0x=3D%s\n", =
sc->gpio_pins[i].gp_pin, sc->gpio_pins[i].gp_name);
+ i++;
+ }
+ sc->gpio_npins =3D i;
+ return (0);
+}
+
+static int
ar71xx_gpio_attach(device_t dev)
{
struct ar71xx_gpio_softc *sc =3D device_get_softc(dev);
@@ -393,20 +437,21 @@
/* Configure all pins as input */
/* disable interrupts for all pins */
GPIO_WRITE(sc, AR71XX_GPIO_INT_MASK, 0);
- pinp =3D ar71xx_gpio_pins;
- i =3D 0;
- while (pinp->name) {
- strncpy(sc->gpio_pins[i].gp_name, pinp->name, =
GPIOMAXNAME);
- sc->gpio_pins[i].gp_pin =3D pinp->pin;
- sc->gpio_pins[i].gp_caps =3D DEFAULT_CAPS;
- sc->gpio_pins[i].gp_flags =3D 0;
- ar71xx_gpio_pin_configure(sc, &sc->gpio_pins[i], =
pinp->flags);
- pinp++;
- i++;
+ if (ar71xx_gpio_configure_from_hint(dev)) {
+ pinp =3D ar71xx_gpio_pins;
+ i =3D 0;
+ while (pinp->name) {
+ strncpy(sc->gpio_pins[i].gp_name, pinp->name, GPIOMAXNAME);
+ sc->gpio_pins[i].gp_pin =3D pinp->pin;
+ sc->gpio_pins[i].gp_caps =3D DEFAULT_CAPS;
+ sc->gpio_pins[i].gp_flags =3D 0;
+ ar71xx_gpio_pin_configure(sc, &sc->gpio_pins[i], =
pinp->flags);
+ pinp++;
+ i++;
+ }
+ sc->gpio_npins =3D i;
}
=20
- sc->gpio_npins =3D i;
-
device_add_child(dev, "gpioc", device_get_unit(dev));
device_add_child(dev, "gpiobus", device_get_unit(dev));
return (bus_generic_attach(dev));
Index: mips/conf/TP-WN1043ND.hints
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- mips/conf/TP-WN1043ND.hints (revision 228073)
+++ mips/conf/TP-WN1043ND.hints (working copy)
@@ -75,3 +75,27 @@
hint.map.4.end=3D0x00800000
hint.map.4.name=3D"art"
hint.map.4.readonly=3D1
+
+# GPIO
+hint.gpio.0.at=3D"apb0"
+hint.gpio.0.maddr=3D0x18040000
+hint.gpio.0.msize=3D0x10000
+hint.gpio.0.irq=3D2
+hint.gpio.0.pins=3D"1=3Do:usb,2=3Do:sys,3=3Di:reset,5=3Do:qss,7=3Di:qss,9=
=3Do:wlan"
+
+# LEDs
+hint.gpioled.0.at=3D"gpiobus0"
+hint.gpioled.0.name=3D"usb"
+hint.gpioled.0.pins=3D0x0002
+
+hint.gpioled.1.at=3D"gpiobus0"
+hint.gpioled.1.name=3D"sys"
+hint.gpioled.1.pins=3D0x0004
+
+hint.gpioled.2.at=3D"gpiobus0"
+hint.gpioled.2.name=3D"qss"
+hint.gpioled.2.pins=3D0x0020
+
+hint.gpioled.3.at=3D"gpiobus0"
+hint.gpioled.3.name=3D"wlan"
+hint.gpioled.3.pins=3D0x0200
--Apple-Mail=_1774D2C1-62A7-427A-8EA3-CA8CD3BF121E--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E612E671-6F2A-49A3-BF5D-A80FEF8AA583>