| // 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 <stdlib.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/driver.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/gpio.h> |
| #include <ddk/protocol/platform/device.h> |
| |
| #define DRIVER_NAME "test-child-1" |
| |
| typedef struct { |
| zx_device_t* zxdev; |
| } test_t; |
| |
| static void test_release(void* ctx) { |
| free(ctx); |
| } |
| |
| static zx_protocol_device_t test_device_protocol = { |
| .version = DEVICE_OPS_VERSION, |
| .release = test_release, |
| }; |
| |
| static zx_status_t test_gpio(pdev_protocol_t* pdev) { |
| zx_status_t status; |
| gpio_protocol_t gpio; |
| size_t actual; |
| |
| status = pdev_get_protocol(pdev, ZX_PROTOCOL_GPIO, 0, &gpio, sizeof(gpio), &actual); |
| |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: failed to get gpio, st = %d\n", DRIVER_NAME, status); |
| } |
| |
| return status; |
| } |
| |
| static zx_status_t test_bind(void* ctx, zx_device_t* parent) { |
| pdev_protocol_t pdev; |
| zx_status_t status; |
| |
| zxlogf(INFO, "test_bind: %s \n", DRIVER_NAME); |
| |
| status = device_get_protocol(parent, ZX_PROTOCOL_PDEV, &pdev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: could not get ZX_PROTOCOL_PDEV\n", DRIVER_NAME); |
| return status; |
| } |
| |
| status = test_gpio(&pdev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: gpio test failed, st = %d\n", DRIVER_NAME, status); |
| } |
| |
| test_t* child_2 = calloc(1, sizeof(test_t)); |
| if (!child_2) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| zx_device_prop_t child_2_props[] = { |
| { BIND_PROTOCOL, 0, ZX_PROTOCOL_PDEV }, |
| { BIND_PLATFORM_DEV_VID, 0, PDEV_VID_TEST}, |
| { BIND_PLATFORM_DEV_PID, 0, PDEV_PID_PBUS_TEST}, |
| { BIND_PLATFORM_DEV_DID, 0, PDEV_DID_TEST_CHILD_2 }, |
| }; |
| |
| device_add_args_t child_2_args = { |
| .version = DEVICE_ADD_ARGS_VERSION, |
| .name = "child-2-top", |
| .ctx = child_2, |
| .ops = &test_device_protocol, |
| .props = child_2_props, |
| .prop_count = countof(child_2_props), |
| }; |
| |
| status = pdev_device_add(&pdev, 0, &child_2_args, &child_2->zxdev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: pdev_device_add failed: %d\n", DRIVER_NAME, status); |
| free(child_2); |
| return status; |
| } |
| |
| test_t* child_3 = calloc(1, sizeof(test_t)); |
| if (!child_3) { |
| return ZX_ERR_NO_MEMORY; |
| } |
| |
| zx_device_prop_t child_3_props[] = { |
| { BIND_PROTOCOL, 0, ZX_PROTOCOL_PDEV }, |
| { BIND_PLATFORM_DEV_VID, 0, PDEV_VID_TEST }, |
| { BIND_PLATFORM_DEV_PID, 0, PDEV_PID_PBUS_TEST }, |
| { BIND_PLATFORM_DEV_DID, 0, PDEV_DID_TEST_CHILD_3 }, |
| }; |
| |
| device_add_args_t child_3_args = { |
| .version = DEVICE_ADD_ARGS_VERSION, |
| .name = "child-3-top", |
| .ctx = child_3, |
| .ops = &test_device_protocol, |
| .props = child_3_props, |
| .prop_count = countof(child_3_props), |
| }; |
| |
| status = pdev_device_add(&pdev, 1, &child_3_args, &child_3->zxdev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: pdev_device_add failed: %d\n", DRIVER_NAME, status); |
| free(child_3); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |
| |
| static zx_driver_ops_t test_driver_ops = { |
| .version = DRIVER_OPS_VERSION, |
| .bind = test_bind, |
| }; |
| |
| ZIRCON_DRIVER_BEGIN(test_bus, test_driver_ops, "zircon", "0.1", 4) |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_PDEV), |
| BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_TEST), |
| BI_ABORT_IF(NE, BIND_PLATFORM_DEV_PID, PDEV_PID_PBUS_TEST), |
| BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_DID, PDEV_DID_TEST_CHILD_1), |
| ZIRCON_DRIVER_END(test_bus) |