| // Copyright 2017 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/protocol/platform-bus.h> |
| #include <ddk/protocol/platform-defs.h> |
| |
| #include <soc/aml-s905x/s905x-gpio.h> |
| #include <soc/aml-s912/s912-gpio.h> |
| #include <soc/aml-s912/s912-hw.h> |
| |
| #include <limits.h> |
| |
| #include "vim.h" |
| |
| // uncomment to disable LED blinky test |
| #define GPIO_TEST 1 |
| |
| // S905X and S912 have same MMIO addresses |
| static const pbus_mmio_t gpio_mmios[] = { |
| { |
| .base = S912_GPIO_BASE, |
| .length = S912_GPIO_LENGTH, |
| }, |
| { |
| .base = S912_GPIO_A0_BASE, |
| .length = S912_GPIO_AO_LENGTH, |
| }, |
| { |
| .base = S912_GPIO_INTERRUPT_BASE, |
| .length = S912_GPIO_INTERRUPT_LENGTH, |
| }, |
| }; |
| |
| // S905X and S912 have same GPIO IRQ numbers |
| static const pbus_irq_t gpio_irqs[] = { |
| { |
| .irq = S912_GPIO_IRQ_0, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_1, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_2, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_3, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_4, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_5, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_6, |
| }, |
| { |
| .irq = S912_GPIO_IRQ_7, |
| }, |
| { |
| .irq = S912_A0_GPIO_IRQ_0, |
| }, |
| { |
| .irq = S912_A0_GPIO_IRQ_1, |
| }, |
| }; |
| |
| static pbus_dev_t gpio_dev = { |
| .name = "gpio", |
| .vid = PDEV_VID_AMLOGIC, |
| // .pid = filled in later, |
| .did = PDEV_DID_AMLOGIC_GPIO, |
| .mmios = gpio_mmios, |
| .mmio_count = countof(gpio_mmios), |
| .irqs = gpio_irqs, |
| .irq_count = countof(gpio_irqs), |
| }; |
| |
| |
| zx_status_t vim_gpio_init(vim_bus_t* bus) { |
| gpio_dev.pid = bus->soc_pid; |
| |
| zx_status_t status = pbus_device_add(&bus->pbus, &gpio_dev, PDEV_ADD_PBUS_DEVHOST); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "vim_gpio_init: pbus_device_add failed: %d\n", status); |
| return status; |
| } |
| |
| status = pbus_wait_protocol(&bus->pbus, ZX_PROTOCOL_GPIO); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "vim_gpio_init: pbus_wait_protocol failed: %d\n", status); |
| return status; |
| } |
| |
| status = device_get_protocol(bus->parent, ZX_PROTOCOL_GPIO, &bus->gpio); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "vim_gpio_init: device_get_protocol failed: %d\n", status); |
| return status; |
| } |
| |
| #if GPIO_TEST |
| const pbus_gpio_t gpio_test_gpios[] = { |
| { |
| // SYS_LED |
| .gpio = (bus->soc_pid == PDEV_PID_AMLOGIC_S912 ? S912_GPIOAO(9) : S905X_GPIOAO(9)), |
| }, |
| { |
| .gpio = S912_GPIOH(7), |
| }, |
| { |
| .gpio = S912_GPIOH(5), |
| } |
| }; |
| |
| const pbus_dev_t gpio_test_dev = { |
| .name = "vim-gpio-test", |
| .vid = PDEV_VID_GENERIC, |
| .pid = PDEV_PID_GENERIC, |
| .did = PDEV_DID_GPIO_TEST, |
| .gpios = gpio_test_gpios, |
| .gpio_count = countof(gpio_test_gpios), |
| }; |
| |
| if ((status = pbus_device_add(&bus->pbus, &gpio_test_dev, 0)) != ZX_OK) { |
| zxlogf(ERROR, "vim_gpio_init could not add gpio_test_dev: %d\n", status); |
| return status; |
| } |
| #endif |
| |
| return ZX_OK; |
| } |