2011-04-03 14:39:55 +00:00
|
|
|
/*-
|
|
|
|
* Copyright (c) 2010-2011, Aleksandr Rybalko <ray@ddteam.net>
|
|
|
|
* Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
|
|
|
|
* Copyright (c) 2009, Luiz Otavio O Souza.
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice unmodified, this list of conditions, and the following
|
|
|
|
* disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* GPIO driver for RT305X SoC.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <sys/systm.h>
|
|
|
|
#include <sys/bus.h>
|
|
|
|
|
|
|
|
#include <sys/kernel.h>
|
|
|
|
#include <sys/module.h>
|
|
|
|
#include <sys/rman.h>
|
|
|
|
#include <sys/lock.h>
|
|
|
|
#include <sys/mutex.h>
|
|
|
|
#include <sys/gpio.h>
|
|
|
|
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <machine/resource.h>
|
|
|
|
#include <mips/rt305x/rt305xreg.h>
|
|
|
|
#include <mips/rt305x/rt305x_gpio.h>
|
|
|
|
#include <mips/rt305x/rt305x_gpiovar.h>
|
|
|
|
#include <mips/rt305x/rt305x_sysctlvar.h>
|
2015-01-31 19:32:14 +00:00
|
|
|
#include <dev/gpio/gpiobusvar.h>
|
2011-04-03 14:39:55 +00:00
|
|
|
|
|
|
|
#include "gpio_if.h"
|
|
|
|
|
|
|
|
#ifdef notyet
|
|
|
|
#define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | \
|
|
|
|
GPIO_PIN_INVOUT | GPIO_PIN_REPORT )
|
|
|
|
#else
|
|
|
|
#define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | \
|
|
|
|
GPIO_PIN_INVOUT )
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Helpers
|
|
|
|
*/
|
|
|
|
static void rt305x_gpio_pin_configure(struct rt305x_gpio_softc *sc,
|
|
|
|
struct gpio_pin *pin, uint32_t flags);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Driver stuff
|
|
|
|
*/
|
|
|
|
static int rt305x_gpio_probe(device_t dev);
|
|
|
|
static int rt305x_gpio_attach(device_t dev);
|
|
|
|
static int rt305x_gpio_detach(device_t dev);
|
|
|
|
static int rt305x_gpio_intr(void *arg);
|
|
|
|
|
|
|
|
int rt305x_get_int_mask (device_t);
|
|
|
|
void rt305x_set_int_mask (device_t, uint32_t);
|
|
|
|
int rt305x_get_int_status(device_t);
|
|
|
|
void rt305x_set_int_status(device_t, uint32_t);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* GPIO interface
|
|
|
|
*/
|
2015-01-31 19:32:14 +00:00
|
|
|
static device_t rt305x_gpio_get_bus(device_t);
|
2011-04-03 14:39:55 +00:00
|
|
|
static int rt305x_gpio_pin_max(device_t dev, int *maxpin);
|
|
|
|
static int rt305x_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps);
|
|
|
|
static int rt305x_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t
|
|
|
|
*flags);
|
|
|
|
static int rt305x_gpio_pin_getname(device_t dev, uint32_t pin, char *name);
|
|
|
|
static int rt305x_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags);
|
|
|
|
static int rt305x_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value);
|
|
|
|
static int rt305x_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val);
|
|
|
|
static int rt305x_gpio_pin_toggle(device_t dev, uint32_t pin);
|
|
|
|
|
|
|
|
static void
|
|
|
|
rt305x_gpio_pin_configure(struct rt305x_gpio_softc *sc, struct gpio_pin *pin,
|
|
|
|
unsigned int flags)
|
|
|
|
{
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Manage input/output
|
|
|
|
*/
|
|
|
|
if (flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) {
|
|
|
|
pin->gp_flags &= ~(GPIO_PIN_INPUT|GPIO_PIN_OUTPUT);
|
|
|
|
if (flags & GPIO_PIN_OUTPUT) {
|
|
|
|
pin->gp_flags |= GPIO_PIN_OUTPUT;
|
|
|
|
GPIO_BIT_SET(sc, pin->gp_pin, DIR);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
pin->gp_flags |= GPIO_PIN_INPUT;
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, DIR);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (flags & GPIO_PIN_INVOUT) {
|
|
|
|
pin->gp_flags |= GPIO_PIN_INVOUT;
|
|
|
|
GPIO_BIT_SET(sc, pin->gp_pin, POL);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
pin->gp_flags &= ~GPIO_PIN_INVOUT;
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, POL);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (flags & GPIO_PIN_INVIN) {
|
|
|
|
pin->gp_flags |= GPIO_PIN_INVIN;
|
|
|
|
GPIO_BIT_SET(sc, pin->gp_pin, POL);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
pin->gp_flags &= ~GPIO_PIN_INVIN;
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, POL);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef notyet
|
|
|
|
/* Enable interrupt bits for rising/falling transitions */
|
|
|
|
if (flags & GPIO_PIN_REPORT) {
|
|
|
|
pin->gp_flags |= GPIO_PIN_REPORT;
|
|
|
|
GPIO_BIT_SET(sc, pin->gp_pin, RENA);
|
|
|
|
GPIO_BIT_SET(sc, pin->gp_pin, FENA);
|
|
|
|
device_printf(sc->dev, "Will report interrupt on pin %d\n",
|
|
|
|
pin->gp_pin);
|
|
|
|
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
pin->gp_flags &= ~GPIO_PIN_REPORT;
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, RENA);
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, FENA);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
/* Disable generating interrupts for now */
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, RENA);
|
|
|
|
GPIO_BIT_CLR(sc, pin->gp_pin, FENA);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
}
|
|
|
|
|
2015-01-31 19:32:14 +00:00
|
|
|
static device_t
|
|
|
|
rt305x_gpio_get_bus(device_t dev)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc;
|
|
|
|
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
return (sc->busdev);
|
|
|
|
}
|
|
|
|
|
2011-04-03 14:39:55 +00:00
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_max(device_t dev, int *maxpin)
|
|
|
|
{
|
|
|
|
|
|
|
|
*maxpin = NGPIO - 1;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
*caps = sc->gpio_pins[i].gp_caps;
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
*flags = sc->gpio_pins[i].gp_flags;
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
memcpy(name, sc->gpio_pins[i].gp_name, GPIOMAXNAME);
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
rt305x_gpio_pin_configure(sc, &sc->gpio_pins[i], flags);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
if (value) GPIO_BIT_SET(sc, i, DATA);
|
|
|
|
else GPIO_BIT_CLR(sc, i, DATA);
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
*val = GPIO_BIT_GET(sc, i, DATA);
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_pin_toggle(device_t dev, uint32_t pin)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
if (sc->gpio_pins[i].gp_pin == pin)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i >= sc->gpio_npins)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
GPIO_LOCK(sc);
|
|
|
|
GPIO_BIT_SET(sc, i, TOG);
|
|
|
|
GPIO_UNLOCK(sc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_intr(void *arg)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = arg;
|
|
|
|
#ifdef notyet
|
|
|
|
uint32_t i;
|
|
|
|
#endif
|
|
|
|
uint64_t input, value;
|
|
|
|
#ifdef notyet
|
|
|
|
uint64_t reset_pin;
|
|
|
|
char notify[16];
|
|
|
|
char pinname[6];
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Read all reported pins */
|
|
|
|
input = GPIO_READ_ALL(sc, INT);
|
|
|
|
/* Clear int status */
|
|
|
|
GPIO_WRITE_ALL(sc, INT, input);
|
|
|
|
/* Clear report for OUTs */
|
|
|
|
input &= ~GPIO_READ_ALL(sc, DIR);
|
|
|
|
value = input & GPIO_READ_ALL(sc, DATA);
|
|
|
|
|
|
|
|
if (!input) goto intr_done;
|
|
|
|
|
|
|
|
#ifdef notyet
|
|
|
|
/* if reset_gpio and this pin is input */
|
|
|
|
if (sc->reset_gpio >= 0 && (input & (1 << sc->reset_gpio))) {
|
|
|
|
/* get reset_gpio pin value */
|
|
|
|
reset_pin = (value & (1 << sc->reset_gpio))?1:0;
|
|
|
|
if ( sc->reset_gpio_last != reset_pin ) {
|
|
|
|
/*
|
|
|
|
* if now reset is high, check how long
|
|
|
|
* and do reset if less than 2 seconds
|
|
|
|
*/
|
|
|
|
if ( reset_pin &&
|
|
|
|
(time_uptime - sc->reset_gpio_ontime) < 2 )
|
|
|
|
shutdown_nice(0);
|
|
|
|
|
|
|
|
sc->reset_gpio_last = reset_pin;
|
|
|
|
sc->reset_gpio_ontime = time_uptime;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for ( i = 0; i < NGPIO; i ++ )
|
|
|
|
{
|
|
|
|
/* Next if output pin */
|
|
|
|
if ( !(( input >> i) & 1) ) continue;
|
|
|
|
|
|
|
|
if ( (((value & input) >> i) & 1) != sc->gpio_pins[i].gp_last )
|
|
|
|
{
|
|
|
|
/* !system=GPIO subsystem=pin7 type=PIN_HIGH period=3 */
|
|
|
|
snprintf(notify , sizeof(notify ), "period=%d",
|
|
|
|
(uint32_t)time_uptime - sc->gpio_pins[i].gp_time);
|
|
|
|
snprintf(pinname, sizeof(pinname), "pin%02d", i);
|
|
|
|
devctl_notify("GPIO", pinname,
|
|
|
|
(((value & input) >> i) & 1)?"PIN_HIGH":"PIN_LOW",
|
|
|
|
notify);
|
|
|
|
printf("GPIO[%s] %s %s\n", pinname,
|
|
|
|
(((value & input) >> i) & 1)?"PIN_HIGH":"PIN_LOW",
|
|
|
|
notify);
|
|
|
|
sc->gpio_pins[i].gp_last = ((value & input) >> i) & 1;
|
|
|
|
sc->gpio_pins[i].gp_time = time_uptime;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
intr_done:
|
|
|
|
return (FILTER_HANDLED);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_probe(device_t dev)
|
|
|
|
{
|
|
|
|
device_set_desc(dev, "RT305X GPIO driver");
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static uint64_t
|
|
|
|
rt305x_gpio_init(device_t dev)
|
|
|
|
{
|
|
|
|
uint64_t avl = ~0ULL;
|
|
|
|
uint32_t gmode = rt305x_sysctl_get(SYSCTL_GPIOMODE);
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_RGMII_GPIO_MODE))
|
|
|
|
avl &= ~RGMII_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_SDRAM_GPIO_MODE))
|
|
|
|
avl &= ~SDRAM_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_MDIO_GPIO_MODE))
|
|
|
|
avl &= ~MDIO_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_JTAG_GPIO_MODE))
|
|
|
|
avl &= ~JTAG_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_UARTL_GPIO_MODE))
|
|
|
|
avl &= ~UARTL_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_SPI_GPIO_MODE))
|
|
|
|
avl &= ~SPI_GPIO_MODE_MASK;
|
|
|
|
if (!(gmode & SYSCTL_GPIOMODE_I2C_GPIO_MODE))
|
|
|
|
avl &= ~I2C_GPIO_MODE_MASK;
|
|
|
|
if ((gmode & SYSCTL_GPIOMODE_UARTF_SHARE_MODE_GPIO) !=
|
|
|
|
SYSCTL_GPIOMODE_UARTF_SHARE_MODE_GPIO)
|
|
|
|
avl &= ~I2C_GPIO_MODE_MASK;
|
|
|
|
/* D-Link DAP-1350 Board have
|
|
|
|
* MDIO_GPIO_MODE
|
|
|
|
* UARTF_GPIO_MODE
|
|
|
|
* SPI_GPIO_MODE
|
|
|
|
* I2C_GPIO_MODE
|
|
|
|
* So we have
|
|
|
|
* 00000001 10000000 01111111 11111110
|
|
|
|
*/
|
|
|
|
return (avl);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
#define DAP1350_RESET_GPIO 10
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_attach(device_t dev)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
2015-01-31 12:17:07 +00:00
|
|
|
int i;
|
2011-04-03 14:39:55 +00:00
|
|
|
uint64_t avlpins = 0;
|
|
|
|
sc->reset_gpio = DAP1350_RESET_GPIO;
|
|
|
|
|
|
|
|
KASSERT((device_get_unit(dev) == 0),
|
|
|
|
("rt305x_gpio_gpio: Only one gpio module supported"));
|
|
|
|
|
2012-08-17 04:44:57 +00:00
|
|
|
mtx_init(&sc->gpio_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
|
2011-04-03 14:39:55 +00:00
|
|
|
|
|
|
|
/* Map control/status registers. */
|
|
|
|
sc->gpio_mem_rid = 0;
|
|
|
|
sc->gpio_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
|
|
|
|
&sc->gpio_mem_rid, RF_ACTIVE);
|
|
|
|
|
|
|
|
if (sc->gpio_mem_res == NULL) {
|
|
|
|
device_printf(dev, "couldn't map memory\n");
|
|
|
|
rt305x_gpio_detach(dev);
|
2015-01-31 12:17:07 +00:00
|
|
|
return (ENXIO);
|
2011-04-03 14:39:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if ((sc->gpio_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
|
|
|
|
&sc->gpio_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
|
|
|
|
device_printf(dev, "unable to allocate IRQ resource\n");
|
2015-01-31 12:17:07 +00:00
|
|
|
rt305x_gpio_detach(dev);
|
2011-04-03 14:39:55 +00:00
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((bus_setup_intr(dev, sc->gpio_irq_res, INTR_TYPE_MISC,
|
|
|
|
/* rt305x_gpio_filter, */
|
|
|
|
rt305x_gpio_intr, NULL, sc, &sc->gpio_ih))) {
|
|
|
|
device_printf(dev,
|
|
|
|
"WARNING: unable to register interrupt handler\n");
|
2015-01-31 12:17:07 +00:00
|
|
|
rt305x_gpio_detach(dev);
|
2011-04-03 14:39:55 +00:00
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
|
|
|
sc->dev = dev;
|
|
|
|
avlpins = rt305x_gpio_init(dev);
|
|
|
|
|
|
|
|
/* Configure all pins as input */
|
|
|
|
/* disable interrupts for all pins */
|
|
|
|
/* TODO */
|
|
|
|
|
|
|
|
sc->gpio_npins = NGPIO;
|
|
|
|
resource_int_value(device_get_name(dev), device_get_unit(dev),
|
|
|
|
"pins", &sc->gpio_npins);
|
|
|
|
|
|
|
|
for (i = 0; i < sc->gpio_npins; i++) {
|
|
|
|
sc->gpio_pins[i].gp_pin = i;
|
|
|
|
sc->gpio_pins[i].gp_caps = DEFAULT_CAPS;
|
|
|
|
sc->gpio_pins[i].gp_flags = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup reset pin interrupt */
|
|
|
|
if (TUNABLE_INT_FETCH("reset_gpio", &sc->reset_gpio)) {
|
|
|
|
device_printf(dev, "\tHinted reset_gpio %d\n", sc->reset_gpio);
|
|
|
|
}
|
|
|
|
#ifdef notyet
|
|
|
|
if (sc->reset_gpio != -1) {
|
|
|
|
rt305x_gpio_pin_setflags(dev, sc->reset_gpio,
|
|
|
|
GPIO_PIN_INPUT|GPIO_PIN_INVOUT|
|
|
|
|
GPIO_PIN_INVOUT|GPIO_PIN_REPORT);
|
|
|
|
device_printf(dev, "\tUse reset_gpio %d\n", sc->reset_gpio);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
if (sc->reset_gpio != -1) {
|
|
|
|
rt305x_gpio_pin_setflags(dev, sc->reset_gpio,
|
|
|
|
GPIO_PIN_INPUT|GPIO_PIN_INVOUT);
|
|
|
|
device_printf(dev, "\tUse reset_gpio %d\n", sc->reset_gpio);
|
|
|
|
}
|
|
|
|
#endif
|
2015-01-31 19:32:14 +00:00
|
|
|
sc->busdev = gpiobus_attach_bus(dev);
|
|
|
|
if (sc->busdev == NULL) {
|
|
|
|
rt305x_gpio_detach(dev);
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
2011-04-03 14:39:55 +00:00
|
|
|
|
2015-01-31 19:32:14 +00:00
|
|
|
return (0);
|
2011-04-03 14:39:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_detach(device_t dev)
|
|
|
|
{
|
|
|
|
struct rt305x_gpio_softc *sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
KASSERT(mtx_initialized(&sc->gpio_mtx), ("gpio mutex not initialized"));
|
|
|
|
|
2015-01-31 19:32:14 +00:00
|
|
|
gpiobus_detach_bus(dev);
|
2015-01-31 12:17:07 +00:00
|
|
|
if (sc->gpio_ih)
|
|
|
|
bus_teardown_intr(dev, sc->gpio_irq_res, sc->gpio_ih);
|
|
|
|
if (sc->gpio_irq_res)
|
|
|
|
bus_release_resource(dev, SYS_RES_IRQ, sc->gpio_irq_rid,
|
|
|
|
sc->gpio_irq_res);
|
2011-04-03 14:39:55 +00:00
|
|
|
if (sc->gpio_mem_res)
|
|
|
|
bus_release_resource(dev, SYS_RES_MEMORY, sc->gpio_mem_rid,
|
|
|
|
sc->gpio_mem_res);
|
|
|
|
mtx_destroy(&sc->gpio_mtx);
|
|
|
|
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef notyet
|
|
|
|
static struct resource *
|
|
|
|
rt305x_gpio_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
2016-01-27 02:23:54 +00:00
|
|
|
rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
|
2011-04-03 14:39:55 +00:00
|
|
|
{
|
|
|
|
struct obio_softc *sc = device_get_softc(bus);
|
|
|
|
struct resource *rv;
|
|
|
|
struct rman *rm;
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case SYS_RES_GPIO:
|
|
|
|
rm = &sc->gpio_rman;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printf("%s: unknown resource type %d\n", __func__, type);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
rv = rman_reserve_resource(rm, start, end, count, flags, child);
|
|
|
|
if (rv == 0) {
|
|
|
|
printf("%s: could not reserve resource\n", __func__);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
rman_set_rid(rv, *rid);
|
|
|
|
|
|
|
|
return (rv);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_activate_resource(device_t bus, device_t child, int type, int rid,
|
|
|
|
struct resource *r)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (rman_activate_resource(r));
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_deactivate_resource(device_t bus, device_t child, int type, int rid,
|
|
|
|
struct resource *r)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (rman_deactivate_resource(r));
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
rt305x_gpio_release_resource(device_t dev, device_t child, int type,
|
|
|
|
int rid, struct resource *r)
|
|
|
|
{
|
|
|
|
rman_release_resource(r);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static device_method_t rt305x_gpio_methods[] = {
|
|
|
|
DEVMETHOD(device_probe, rt305x_gpio_probe),
|
|
|
|
DEVMETHOD(device_attach, rt305x_gpio_attach),
|
|
|
|
DEVMETHOD(device_detach, rt305x_gpio_detach),
|
|
|
|
|
|
|
|
/* GPIO protocol */
|
2015-01-31 19:32:14 +00:00
|
|
|
DEVMETHOD(gpio_get_bus, rt305x_gpio_get_bus),
|
2011-04-03 14:39:55 +00:00
|
|
|
DEVMETHOD(gpio_pin_max, rt305x_gpio_pin_max),
|
|
|
|
DEVMETHOD(gpio_pin_getname, rt305x_gpio_pin_getname),
|
|
|
|
DEVMETHOD(gpio_pin_getflags, rt305x_gpio_pin_getflags),
|
|
|
|
DEVMETHOD(gpio_pin_getcaps, rt305x_gpio_pin_getcaps),
|
|
|
|
DEVMETHOD(gpio_pin_setflags, rt305x_gpio_pin_setflags),
|
|
|
|
DEVMETHOD(gpio_pin_get, rt305x_gpio_pin_get),
|
|
|
|
DEVMETHOD(gpio_pin_set, rt305x_gpio_pin_set),
|
|
|
|
DEVMETHOD(gpio_pin_toggle, rt305x_gpio_pin_toggle),
|
|
|
|
{0, 0},
|
|
|
|
};
|
|
|
|
|
|
|
|
static driver_t rt305x_gpio_driver = {
|
|
|
|
"gpio",
|
|
|
|
rt305x_gpio_methods,
|
|
|
|
sizeof(struct rt305x_gpio_softc),
|
|
|
|
};
|
|
|
|
static devclass_t rt305x_gpio_devclass;
|
|
|
|
|
|
|
|
DRIVER_MODULE(rt305x_gpio, obio, rt305x_gpio_driver,
|
|
|
|
rt305x_gpio_devclass, 0, 0);
|