blob: a910486c25d471b24bde85006511ebe96e2fe083 [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/mt8167/mt8167-gpio.h>
#include <soc/mt8167/mt8167-hw.h>
#include "mt8167.h"
namespace board_mt8167 {
zx_status_t Mt8167::GpioInit() {
const pbus_mmio_t gpio_mmios[] = {
{
.base = MT8167_GPIO_BASE,
.length = MT8167_GPIO_SIZE,
},
{
.base = MT8167_IOCFG_BASE,
.length = MT8167_IOCFG_SIZE,
},
{
.base = MT8167_EINT_BASE,
.length = MT8167_EINT_SIZE,
},
};
const pbus_irq_t gpio_irqs[] = {
{
.irq = MT8167_IRQ_ARM_EINT,
.mode = ZX_INTERRUPT_MODE_LEVEL_HIGH,
},
};
const gpio_pin_t cleo_gpio_pins[] = {
// For backlight driver
{ MT8167_CLEO_GPIO_LCM_EN },
// For display driver
{ MT8167_GPIO_LCD_RST },
// For touch screen driver
{ MT8167_GPIO_TOUCH_INT },
{ MT8167_GPIO_TOUCH_RST },
// For mt8167s audio out
{ MT8167_GPIO107_MSDC1_DAT1 },
{ MT8167_GPIO108_MSDC1_DAT2 },
// For audio in
{ MT8167_GPIO24_EINT24 },
// For mt8167 buttons.
{ MT8167_GPIO_KP_ROW0 },
{ MT8167_GPIO_KP_ROW1 },
{ MT8167_GPIO_KP_COL0 },
{ MT8167_GPIO_KP_COL1 },
// For cleo buttons.
{ MT8167_GPIO_VOLUME_UP },
{ MT8167_GPIO_MIC_PRIVACY },
};
const pbus_metadata_t cleo_gpio_metadata[] = {
{
.type = DEVICE_METADATA_GPIO_PINS,
.data_buffer = &cleo_gpio_pins,
.data_size = sizeof(cleo_gpio_pins),
}
};
pbus_dev_t gpio_dev = {};
gpio_dev.name = "gpio";
gpio_dev.vid = PDEV_VID_MEDIATEK;
gpio_dev.did = PDEV_DID_MEDIATEK_GPIO;
gpio_dev.mmio_list = gpio_mmios;
gpio_dev.mmio_count = countof(gpio_mmios);
gpio_dev.irq_list = gpio_irqs;
gpio_dev.irq_count = countof(gpio_irqs);
gpio_dev.metadata_list = cleo_gpio_metadata;
gpio_dev.metadata_count = countof(cleo_gpio_metadata);
if ((board_info_.vid == PDEV_VID_MEDIATEK && board_info_.pid == PDEV_PID_MEDIATEK_8167S_REF) ||
(board_info_.vid == PDEV_VID_GOOGLE && board_info_.pid == PDEV_PID_CLEO)) {
zx_status_t status = pbus_.ProtocolDeviceAdd(ZX_PROTOCOL_GPIO_IMPL, &gpio_dev);
if (status != ZX_OK) {
zxlogf(ERROR, "%s: ProtocolDeviceAdd failed %d\n", __FUNCTION__, status);
return status;
}
status = device_get_protocol(parent(), ZX_PROTOCOL_GPIO_IMPL, &gpio_impl_);
if (status != ZX_OK) {
zxlogf(ERROR, "%s: device_get_protocol failed %d\n", __func__, status);
return status;
}
} else {
return ZX_ERR_NOT_SUPPORTED;
}
//#define GPIO_TEST
#ifdef GPIO_TEST
const pbus_gpio_t gpio_test_gpios[] = {
{
.gpio = 60, // SDA2, to test gpio_write()
},
{
.gpio = 40, // EINT KPROW0 (key matrix) to test gpio_get_interrupt()
},
};
pbus_dev_t gpio_test_dev = {};
gpio_test_dev.name = "imx8mevk-gpio-test";
gpio_test_dev.vid = PDEV_VID_GENERIC;
gpio_test_dev.pid = PDEV_PID_GENERIC;
gpio_test_dev.did = PDEV_DID_GPIO_TEST;
gpio_test_dev.gpio_list = gpio_test_gpios;
gpio_test_dev.gpio_count = countof(gpio_test_gpios);
if ((status = pbus_.DeviceAdd(&gpio_test_dev)) != ZX_OK) {
zxlogf(ERROR, "%s: Could not add gpio_test_dev %d\n", __FUNCTION__, status);
return status;
}
#endif
return ZX_OK;
}
} // namespace board_mt8167