80ab358ee4
Also the GPIOC doesn't need to be attach early Reviewed by: andrew MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D7082
717 lines
18 KiB
C
717 lines
18 KiB
C
/*-
|
|
* Copyright (c) 2015-2016 Emmanuel Vadot <manu@freebsd.org>
|
|
* Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
|
|
* 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, 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
/*
|
|
* X-Power AXP209 PMU for Allwinner SoCs
|
|
*/
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/eventhandler.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/clock.h>
|
|
#include <sys/time.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/gpio.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <dev/iicbus/iicbus.h>
|
|
#include <dev/iicbus/iiconf.h>
|
|
|
|
#include <dev/gpio/gpiobusvar.h>
|
|
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
#include <arm/allwinner/axp209reg.h>
|
|
|
|
#include "iicbus_if.h"
|
|
#include "gpio_if.h"
|
|
|
|
struct axp209_softc {
|
|
device_t dev;
|
|
uint32_t addr;
|
|
struct resource * res[1];
|
|
void * intrcookie;
|
|
struct intr_config_hook intr_hook;
|
|
device_t gpiodev;
|
|
struct mtx mtx;
|
|
};
|
|
|
|
/* GPIO3 is different, don't expose it for now */
|
|
static const struct {
|
|
const char *name;
|
|
uint8_t ctrl_reg;
|
|
} axp209_pins[] = {
|
|
{ "GPIO0", AXP209_GPIO0_CTRL },
|
|
{ "GPIO1", AXP209_GPIO1_CTRL },
|
|
{ "GPIO2", AXP209_GPIO2_CTRL },
|
|
};
|
|
|
|
static struct resource_spec axp_res_spec[] = {
|
|
{ SYS_RES_IRQ, 0, RF_ACTIVE },
|
|
{ -1, 0, 0 }
|
|
};
|
|
|
|
#define AXP_LOCK(sc) mtx_lock(&(sc)->mtx)
|
|
#define AXP_UNLOCK(sc) mtx_unlock(&(sc)->mtx)
|
|
|
|
static int
|
|
axp209_read(device_t dev, uint8_t reg, uint8_t *data, uint8_t size)
|
|
{
|
|
struct axp209_softc *sc = device_get_softc(dev);
|
|
struct iic_msg msg[2];
|
|
|
|
msg[0].slave = sc->addr;
|
|
msg[0].flags = IIC_M_WR;
|
|
msg[0].len = 1;
|
|
msg[0].buf = ®
|
|
|
|
msg[1].slave = sc->addr;
|
|
msg[1].flags = IIC_M_RD;
|
|
msg[1].len = size;
|
|
msg[1].buf = data;
|
|
|
|
return (iicbus_transfer(dev, msg, 2));
|
|
}
|
|
|
|
static int
|
|
axp209_write(device_t dev, uint8_t reg, uint8_t data)
|
|
{
|
|
uint8_t buffer[2];
|
|
struct axp209_softc *sc = device_get_softc(dev);
|
|
struct iic_msg msg;
|
|
|
|
buffer[0] = reg;
|
|
buffer[1] = data;
|
|
|
|
msg.slave = sc->addr;
|
|
msg.flags = IIC_M_WR;
|
|
msg.len = 2;
|
|
msg.buf = buffer;
|
|
|
|
return (iicbus_transfer(dev, &msg, 1));
|
|
}
|
|
|
|
static int
|
|
axp209_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
device_t dev = arg1;
|
|
enum axp209_sensor sensor = arg2;
|
|
uint8_t data[2];
|
|
int val, error;
|
|
|
|
switch (sensor) {
|
|
case AXP209_TEMP:
|
|
error = axp209_read(dev, AXP209_TEMPMON, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
/* Temperature is between -144.7C and 264.8C, step +0.1C */
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) -
|
|
AXP209_TEMPMON_MIN + AXP209_0C_TO_K;
|
|
break;
|
|
case AXP209_ACVOLT:
|
|
error = axp209_read(dev, AXP209_ACIN_VOLTAGE, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_VOLT_STEP;
|
|
break;
|
|
case AXP209_ACCURRENT:
|
|
error = axp209_read(dev, AXP209_ACIN_CURRENT, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_ACCURRENT_STEP;
|
|
break;
|
|
case AXP209_VBUSVOLT:
|
|
error = axp209_read(dev, AXP209_VBUS_VOLTAGE, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_VOLT_STEP;
|
|
break;
|
|
case AXP209_VBUSCURRENT:
|
|
error = axp209_read(dev, AXP209_VBUS_CURRENT, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_VBUSCURRENT_STEP;
|
|
break;
|
|
case AXP209_BATVOLT:
|
|
error = axp209_read(dev, AXP209_BAT_VOLTAGE, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_BATVOLT_STEP;
|
|
break;
|
|
case AXP209_BATCHARGECURRENT:
|
|
error = axp209_read(dev, AXP209_BAT_CHARGE_CURRENT, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_H(data[0]) | AXP209_SENSOR_L(data[1])) *
|
|
AXP209_BATCURRENT_STEP;
|
|
break;
|
|
case AXP209_BATDISCHARGECURRENT:
|
|
error = axp209_read(dev, AXP209_BAT_DISCHARGE_CURRENT, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = (AXP209_SENSOR_BAT_H(data[0]) |
|
|
AXP209_SENSOR_BAT_L(data[1])) * AXP209_BATCURRENT_STEP;
|
|
break;
|
|
default:
|
|
return (ENOENT);
|
|
}
|
|
|
|
return sysctl_handle_opaque(oidp, &val, sizeof(val), req);
|
|
}
|
|
|
|
static void
|
|
axp209_shutdown(void *devp, int howto)
|
|
{
|
|
device_t dev;
|
|
|
|
if (!(howto & RB_POWEROFF))
|
|
return;
|
|
dev = (device_t)devp;
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "Shutdown AXP209\n");
|
|
|
|
axp209_write(dev, AXP209_SHUTBAT, AXP209_SHUTBAT_SHUTDOWN);
|
|
}
|
|
|
|
static void
|
|
axp_intr(void *arg)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t reg;
|
|
|
|
sc = arg;
|
|
|
|
axp209_read(sc->dev, AXP209_IRQ1_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP209_IRQ1_AC_OVERVOLT)
|
|
devctl_notify("PMU", "AC", "overvoltage", NULL);
|
|
if (reg & AXP209_IRQ1_VBUS_OVERVOLT)
|
|
devctl_notify("PMU", "USB", "overvoltage", NULL);
|
|
if (reg & AXP209_IRQ1_VBUS_LOW)
|
|
devctl_notify("PMU", "USB", "undervoltage", NULL);
|
|
if (reg & AXP209_IRQ1_AC_CONN)
|
|
devctl_notify("PMU", "AC", "plugged", NULL);
|
|
if (reg & AXP209_IRQ1_AC_DISCONN)
|
|
devctl_notify("PMU", "AC", "unplugged", NULL);
|
|
if (reg & AXP209_IRQ1_VBUS_CONN)
|
|
devctl_notify("PMU", "USB", "plugged", NULL);
|
|
if (reg & AXP209_IRQ1_VBUS_DISCONN)
|
|
devctl_notify("PMU", "USB", "unplugged", NULL);
|
|
axp209_write(sc->dev, AXP209_IRQ1_STATUS, AXP209_IRQ_ACK);
|
|
}
|
|
|
|
axp209_read(sc->dev, AXP209_IRQ2_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP209_IRQ2_BATT_CHARGED)
|
|
devctl_notify("PMU", "Battery", "charged", NULL);
|
|
if (reg & AXP209_IRQ2_BATT_CHARGING)
|
|
devctl_notify("PMU", "Battery", "charging", NULL);
|
|
if (reg & AXP209_IRQ2_BATT_CONN)
|
|
devctl_notify("PMU", "Battery", "connected", NULL);
|
|
if (reg & AXP209_IRQ2_BATT_DISCONN)
|
|
devctl_notify("PMU", "Battery", "disconnected", NULL);
|
|
if (reg & AXP209_IRQ2_BATT_TEMP_LOW)
|
|
devctl_notify("PMU", "Battery", "low temp", NULL);
|
|
if (reg & AXP209_IRQ2_BATT_TEMP_OVER)
|
|
devctl_notify("PMU", "Battery", "high temp", NULL);
|
|
axp209_write(sc->dev, AXP209_IRQ2_STATUS, AXP209_IRQ_ACK);
|
|
}
|
|
|
|
axp209_read(sc->dev, AXP209_IRQ3_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP209_IRQ3_PEK_SHORT)
|
|
shutdown_nice(RB_POWEROFF);
|
|
axp209_write(sc->dev, AXP209_IRQ3_STATUS, AXP209_IRQ_ACK);
|
|
}
|
|
|
|
axp209_read(sc->dev, AXP209_IRQ4_STATUS, ®, 1);
|
|
if (reg) {
|
|
axp209_write(sc->dev, AXP209_IRQ4_STATUS, AXP209_IRQ_ACK);
|
|
}
|
|
|
|
axp209_read(sc->dev, AXP209_IRQ5_STATUS, ®, 1);
|
|
if (reg) {
|
|
axp209_write(sc->dev, AXP209_IRQ5_STATUS, AXP209_IRQ_ACK);
|
|
}
|
|
}
|
|
|
|
static device_t
|
|
axp209_gpio_get_bus(device_t dev)
|
|
{
|
|
struct axp209_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
return (sc->gpiodev);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_max(device_t dev, int *maxpin)
|
|
{
|
|
*maxpin = nitems(axp209_pins) - 1;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
|
|
{
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
snprintf(name, GPIOMAXNAME, "%s", axp209_pins[pin].name);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
|
|
{
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
*caps = GPIO_PIN_INPUT | GPIO_PIN_OUTPUT;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp209_read(dev, axp209_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP209_GPIO_FUNC_MASK;
|
|
if (func == AXP209_GPIO_FUNC_INPUT)
|
|
*flags = GPIO_PIN_INPUT;
|
|
else if (func == AXP209_GPIO_FUNC_DRVLO ||
|
|
func == AXP209_GPIO_FUNC_DRVHI)
|
|
*flags = GPIO_PIN_OUTPUT;
|
|
else
|
|
*flags = 0;
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t data;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp209_read(dev, axp209_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
data &= ~AXP209_GPIO_FUNC_MASK;
|
|
if ((flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) != 0) {
|
|
if ((flags & GPIO_PIN_OUTPUT) == 0)
|
|
data |= AXP209_GPIO_FUNC_INPUT;
|
|
}
|
|
error = axp209_write(dev, axp209_pins[pin].ctrl_reg, data);
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp209_read(dev, axp209_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP209_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP209_GPIO_FUNC_DRVLO:
|
|
*val = 0;
|
|
break;
|
|
case AXP209_GPIO_FUNC_DRVHI:
|
|
*val = 1;
|
|
break;
|
|
case AXP209_GPIO_FUNC_INPUT:
|
|
error = axp209_read(dev, AXP209_GPIO_STATUS, &data, 1);
|
|
if (error == 0)
|
|
*val = (data & AXP209_GPIO_DATA(pin)) ? 1 : 0;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_pin_set(device_t dev, uint32_t pin, unsigned int val)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp209_read(dev, axp209_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP209_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP209_GPIO_FUNC_DRVLO:
|
|
case AXP209_GPIO_FUNC_DRVHI:
|
|
/* GPIO2 can't be set to 1 */
|
|
if (pin == 2 && val == 1) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
data &= ~AXP209_GPIO_FUNC_MASK;
|
|
data |= val;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp209_write(dev, axp209_pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
|
|
static int
|
|
axp209_gpio_pin_toggle(device_t dev, uint32_t pin)
|
|
{
|
|
struct axp209_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp209_read(dev, axp209_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP209_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP209_GPIO_FUNC_DRVLO:
|
|
/* Pin 2 can't be set to 1*/
|
|
if (pin == 2) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
data &= ~AXP209_GPIO_FUNC_MASK;
|
|
data |= AXP209_GPIO_FUNC_DRVHI;
|
|
break;
|
|
case AXP209_GPIO_FUNC_DRVHI:
|
|
data &= ~AXP209_GPIO_FUNC_MASK;
|
|
data |= AXP209_GPIO_FUNC_DRVLO;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp209_write(dev, axp209_pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp209_gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent,
|
|
int gcells, pcell_t *gpios, uint32_t *pin, uint32_t *flags)
|
|
{
|
|
if (gpios[0] >= nitems(axp209_pins))
|
|
return (EINVAL);
|
|
|
|
*pin = gpios[0];
|
|
*flags = gpios[1];
|
|
|
|
return (0);
|
|
}
|
|
|
|
static phandle_t
|
|
axp209_get_node(device_t dev, device_t bus)
|
|
{
|
|
return (ofw_bus_get_node(dev));
|
|
}
|
|
|
|
static void
|
|
axp209_start(void *pdev)
|
|
{
|
|
device_t dev;
|
|
struct axp209_softc *sc;
|
|
const char *pwr_name[] = {"Battery", "AC", "USB", "AC and USB"};
|
|
uint8_t data;
|
|
uint8_t pwr_src;
|
|
|
|
dev = pdev;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->addr = iicbus_get_addr(dev);
|
|
sc->dev = dev;
|
|
|
|
if (bootverbose) {
|
|
/*
|
|
* Read the Power State register.
|
|
* Shift the AC presence into bit 0.
|
|
* Shift the Battery presence into bit 1.
|
|
*/
|
|
axp209_read(dev, AXP209_PSR, &data, 1);
|
|
pwr_src = ((data & AXP209_PSR_ACIN) >> AXP209_PSR_ACIN_SHIFT) |
|
|
((data & AXP209_PSR_VBUS) >> (AXP209_PSR_VBUS_SHIFT - 1));
|
|
|
|
device_printf(dev, "AXP209 Powered by %s\n",
|
|
pwr_name[pwr_src]);
|
|
}
|
|
|
|
/* Only enable interrupts that we are interested in */
|
|
axp209_write(dev, AXP209_IRQ1_ENABLE,
|
|
AXP209_IRQ1_AC_OVERVOLT |
|
|
AXP209_IRQ1_AC_DISCONN |
|
|
AXP209_IRQ1_AC_CONN |
|
|
AXP209_IRQ1_VBUS_OVERVOLT |
|
|
AXP209_IRQ1_VBUS_DISCONN |
|
|
AXP209_IRQ1_VBUS_CONN);
|
|
axp209_write(dev, AXP209_IRQ2_ENABLE,
|
|
AXP209_IRQ2_BATT_CONN |
|
|
AXP209_IRQ2_BATT_DISCONN |
|
|
AXP209_IRQ2_BATT_CHARGE_ACCT_ON |
|
|
AXP209_IRQ2_BATT_CHARGE_ACCT_OFF |
|
|
AXP209_IRQ2_BATT_CHARGING |
|
|
AXP209_IRQ2_BATT_CHARGED |
|
|
AXP209_IRQ2_BATT_TEMP_OVER |
|
|
AXP209_IRQ2_BATT_TEMP_LOW);
|
|
axp209_write(dev, AXP209_IRQ3_ENABLE,
|
|
AXP209_IRQ3_PEK_SHORT | AXP209_IRQ3_PEK_LONG);
|
|
axp209_write(dev, AXP209_IRQ4_ENABLE, AXP209_IRQ4_APS_LOW_2);
|
|
axp209_write(dev, AXP209_IRQ5_ENABLE, 0x0);
|
|
|
|
EVENTHANDLER_REGISTER(shutdown_final, axp209_shutdown, dev,
|
|
SHUTDOWN_PRI_LAST);
|
|
|
|
/* Enable ADC sensors */
|
|
if (axp209_write(dev, AXP209_ADC_ENABLE1,
|
|
AXP209_ADC1_BATVOLT | AXP209_ADC1_BATCURRENT |
|
|
AXP209_ADC1_ACVOLT | AXP209_ADC1_ACCURRENT |
|
|
AXP209_ADC1_VBUSVOLT | AXP209_ADC1_VBUSCURRENT) != -1) {
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "acvolt",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_ACVOLT, axp209_sysctl, "I",
|
|
"AC Voltage (microVolt)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "accurrent",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_ACCURRENT, axp209_sysctl, "I",
|
|
"AC Current (microAmpere)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "vbusvolt",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_VBUSVOLT, axp209_sysctl, "I",
|
|
"VBUS Voltage (microVolt)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "vbuscurrent",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_VBUSCURRENT, axp209_sysctl, "I",
|
|
"VBUS Current (microAmpere)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "batvolt",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_BATVOLT, axp209_sysctl, "I",
|
|
"Battery Voltage (microVolt)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "batchargecurrent",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_BATCHARGECURRENT, axp209_sysctl, "I",
|
|
"Battery Charging Current (microAmpere)");
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "batdischargecurrent",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_BATDISCHARGECURRENT, axp209_sysctl, "I",
|
|
"Battery Discharging Current (microAmpere)");
|
|
} else {
|
|
device_printf(dev, "Couldn't enable ADC sensors\n");
|
|
}
|
|
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "temp",
|
|
CTLTYPE_INT | CTLFLAG_RD,
|
|
dev, AXP209_TEMP, axp209_sysctl, "IK", "Internal temperature");
|
|
|
|
if ((bus_setup_intr(dev, sc->res[0], INTR_TYPE_MISC | INTR_MPSAFE,
|
|
NULL, axp_intr, sc, &sc->intrcookie)))
|
|
device_printf(dev, "unable to register interrupt handler\n");
|
|
|
|
config_intrhook_disestablish(&sc->intr_hook);
|
|
}
|
|
|
|
static int
|
|
axp209_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (!ofw_bus_is_compatible(dev, "x-powers,axp209"))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "X-Powers AXP209 Power Management Unit");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
axp209_attach(device_t dev)
|
|
{
|
|
struct axp209_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
|
|
|
|
if (bus_alloc_resources(dev, axp_res_spec, sc->res) != 0) {
|
|
device_printf(dev, "can't allocate device resources\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
sc->intr_hook.ich_func = axp209_start;
|
|
sc->intr_hook.ich_arg = dev;
|
|
|
|
if (config_intrhook_establish(&sc->intr_hook) != 0)
|
|
return (ENOMEM);
|
|
|
|
sc->gpiodev = gpiobus_attach_bus(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t axp209_methods[] = {
|
|
DEVMETHOD(device_probe, axp209_probe),
|
|
DEVMETHOD(device_attach, axp209_attach),
|
|
|
|
/* GPIO interface */
|
|
DEVMETHOD(gpio_get_bus, axp209_gpio_get_bus),
|
|
DEVMETHOD(gpio_pin_max, axp209_gpio_pin_max),
|
|
DEVMETHOD(gpio_pin_getname, axp209_gpio_pin_getname),
|
|
DEVMETHOD(gpio_pin_getcaps, axp209_gpio_pin_getcaps),
|
|
DEVMETHOD(gpio_pin_getflags, axp209_gpio_pin_getflags),
|
|
DEVMETHOD(gpio_pin_setflags, axp209_gpio_pin_setflags),
|
|
DEVMETHOD(gpio_pin_get, axp209_gpio_pin_get),
|
|
DEVMETHOD(gpio_pin_set, axp209_gpio_pin_set),
|
|
DEVMETHOD(gpio_pin_toggle, axp209_gpio_pin_toggle),
|
|
DEVMETHOD(gpio_map_gpios, axp209_gpio_map_gpios),
|
|
|
|
/* OFW bus interface */
|
|
DEVMETHOD(ofw_bus_get_node, axp209_get_node),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t axp209_driver = {
|
|
"axp209_pmu",
|
|
axp209_methods,
|
|
sizeof(struct axp209_softc),
|
|
};
|
|
|
|
static devclass_t axp209_devclass;
|
|
extern devclass_t ofwgpiobus_devclass, gpioc_devclass;
|
|
extern driver_t ofw_gpiobus_driver, gpioc_driver;
|
|
|
|
EARLY_DRIVER_MODULE(axp209, iicbus, axp209_driver, axp209_devclass,
|
|
0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
|
|
EARLY_DRIVER_MODULE(ofw_gpiobus, axp209_pmu, ofw_gpiobus_driver,
|
|
ofwgpiobus_devclass, 0, 0, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
|
|
DRIVER_MODULE(gpioc, axp209_pmu, gpioc_driver, gpioc_devclass,
|
|
0, 0);
|
|
MODULE_VERSION(axp209, 1);
|
|
MODULE_DEPEND(axp209, iicbus, 1, 1, 1);
|