blob: d2c8327e3ecd5cde1337776753cdbf5a844a0cf7 [file] [log] [blame]
// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <ddk/debug.h>
#include <ddk/device.h>
#include <ddk/metadata.h>
#include <ddk/metadata/gpio.h>
#include <ddk/platform-defs.h>
#include <ddk/protocol/platform/bus.h>
#include <soc/aml-s905d2/s905d2-gpio.h>
#include <soc/aml-s905d2/s905d2-hw.h>
#include <limits.h>
#include "astro.h"
#include "astro-gpios.h"
// uncomment to disable LED blinky test
// #define GPIO_TEST 1
static const pbus_mmio_t gpio_mmios[] = {
{
.base = S905D2_GPIO_BASE,
.length = S905D2_GPIO_LENGTH,
},
{
.base = S905D2_GPIO_A0_BASE,
.length = S905D2_GPIO_AO_LENGTH,
},
{
.base = S905D2_GPIO_INTERRUPT_BASE,
.length = S905D2_GPIO_INTERRUPT_LENGTH,
},
};
static const pbus_irq_t gpio_irqs[] = {
{
.irq = S905D2_GPIO_IRQ_0,
},
{
.irq = S905D2_GPIO_IRQ_1,
},
{
.irq = S905D2_GPIO_IRQ_2,
},
{
.irq = S905D2_GPIO_IRQ_3,
},
{
.irq = S905D2_GPIO_IRQ_4,
},
{
.irq = S905D2_GPIO_IRQ_5,
},
{
.irq = S905D2_GPIO_IRQ_6,
},
{
.irq = S905D2_GPIO_IRQ_7,
},
/*
{
.irq = S905D2_A0_GPIO_IRQ_0,
.mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
},
{
.irq = S905D2_A0_GPIO_IRQ_1,
.mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
},
*/
};
// GPIOs to expose from generic GPIO driver.
static const gpio_pin_t gpio_pins[] = {
// For wifi.
{ S905D2_WIFI_SDIO_WAKE_HOST },
// For display.
{ GPIO_PANEL_DETECT },
{ GPIO_LCD_RESET },
};
static const pbus_metadata_t gpio_metadata[] = {
{
.type = DEVICE_METADATA_GPIO_PINS,
.data_buffer = &gpio_pins,
.data_size = sizeof(gpio_pins),
}
};
static pbus_dev_t gpio_dev = {
.name = "gpio",
.vid = PDEV_VID_AMLOGIC,
.pid = PDEV_PID_AMLOGIC_S905D2,
.did = PDEV_DID_AMLOGIC_GPIO,
.mmio_list = gpio_mmios,
.mmio_count = countof(gpio_mmios),
.irq_list = gpio_irqs,
.irq_count = countof(gpio_irqs),
.metadata_list = gpio_metadata,
.metadata_count = countof(gpio_metadata),
};
zx_status_t aml_gpio_init(aml_bus_t* bus) {
zx_status_t status = pbus_protocol_device_add(&bus->pbus, ZX_PROTOCOL_GPIO_IMPL, &gpio_dev);
if (status != ZX_OK) {
zxlogf(ERROR, "aml_gpio_init: pbus_protocol_device_add failed: %d\n", status);
return status;
}
status = device_get_protocol(bus->parent, ZX_PROTOCOL_GPIO_IMPL, &bus->gpio);
if (status != ZX_OK) {
zxlogf(ERROR, "aml_gpio_init: device_get_protocol failed: %d\n", status);
return status;
}
// Enable mute LED so it will be controlled by mute switch.
status = gpio_impl_config_out(&bus->gpio, S905D2_GPIOAO(11), 1);
if (status != ZX_OK) {
zxlogf(ERROR, "aml_gpio_init: gpio_impl_config_out failed: %d\n", status);
}
#if GPIO_TEST
const pbus_gpio_t gpio_test_gpios[] = {
{
// SYS_LED
.gpio = S905D2_GPIOAO(11),
},
{
// JTAG Adapter Pin
.gpio = S905D2_GPIOAO(6),
}
};
const pbus_dev_t gpio_test_dev = {
.name = "aml-gpio-test",
.vid = PDEV_VID_GENERIC,
.pid = PDEV_PID_GENERIC,
.did = PDEV_DID_GPIO_TEST,
.gpio_list = gpio_test_gpios,
.gpio_count = countof(gpio_test_gpios),
};
if ((status = pbus_device_add(&bus->pbus, &gpio_test_dev, 0)) != ZX_OK) {
zxlogf(ERROR, "aml_gpio_init could not add gpio_test_dev: %d\n", status);
return status;
}
#endif
return ZX_OK;
}