1// Copyright 2018 The Fuchsia Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include <ddk/binding.h> 6#include <ddk/debug.h> 7#include <ddk/device.h> 8#include <ddk/driver.h> 9#include <ddk/protocol/platform-defs.h> 10#include <ddk/protocol/platform-device.h> 11 12#include "../qemu-virt.h" 13 14#define DRIVER_NAME "qemu-test-child-1" 15 16typedef struct { 17 zx_device_t* zxdev; 18} qemu_test_t; 19 20static void qemu_test_release(void* ctx) { 21 free(ctx); 22} 23 24static zx_protocol_device_t qemu_test_device_protocol = { 25 .version = DEVICE_OPS_VERSION, 26 .release = qemu_test_release, 27}; 28 29static zx_status_t qemu_test_bti(platform_device_protocol_t* pdev) { 30 zx_status_t status; 31 zx_handle_t bti; 32 33 status = pdev_get_bti(pdev, 0, &bti); 34 35 if (status != ZX_OK) { 36 zxlogf(ERROR, "%s: failed to get bti, st = %d\n", DRIVER_NAME, status); 37 } 38 39 zx_handle_close(bti); 40 41 return status; 42} 43 44static zx_status_t qemu_test_bind(void* ctx, zx_device_t* parent) { 45 platform_device_protocol_t pdev; 46 zx_status_t status; 47 48 zxlogf(INFO, "qemu_test_bind: %s \n", DRIVER_NAME); 49 50 status = device_get_protocol(parent, ZX_PROTOCOL_PLATFORM_DEV, &pdev); 51 if (status != ZX_OK) { 52 zxlogf(ERROR, "%s: could not get ZX_PROTOCOL_PLATFORM_DEV\n", DRIVER_NAME); 53 return status; 54 } 55 56 // Make sure we can access our MMIO. 57 mmio_buffer_t mmio; 58 status = pdev_map_mmio_buffer2(&pdev, 0, ZX_CACHE_POLICY_UNCACHED_DEVICE, &mmio); 59 if (status != ZX_OK) { 60 zxlogf(ERROR, "%s: pdev_map_mmio_buffer failed\n", DRIVER_NAME); 61 return status; 62 } 63 if (mmio.size != TEST_MMIO_2_SIZE) { 64 zxlogf(ERROR, "%s: mmio.size expected %u got %zu\n", DRIVER_NAME, TEST_MMIO_2_SIZE, 65 mmio.size); 66 } 67 mmio_buffer_release(&mmio); 68 69 status = qemu_test_bti(&pdev); 70 if (status != ZX_OK) { 71 zxlogf(ERROR, "%s: bti test failed, st = %d\n", DRIVER_NAME, status); 72 } 73 74 qemu_test_t* child_2 = calloc(1, sizeof(qemu_test_t)); 75 if (!child_2) { 76 return ZX_ERR_NO_MEMORY; 77 } 78 79 zx_device_prop_t child_2_props[] = { 80 { BIND_PROTOCOL, 0, ZX_PROTOCOL_PLATFORM_DEV }, 81 { BIND_PLATFORM_DEV_VID, 0, PDEV_VID_QEMU }, 82 { BIND_PLATFORM_DEV_PID, 0, PDEV_PID_QEMU }, 83 { BIND_PLATFORM_DEV_DID, 0, PDEV_DID_QEMU_TEST_CHILD_2 }, 84 }; 85 86 device_add_args_t child_2_args = { 87 .version = DEVICE_ADD_ARGS_VERSION, 88 .name = "child-2", 89 .ctx = child_2, 90 .ops = &qemu_test_device_protocol, 91 .props = child_2_props, 92 .prop_count = countof(child_2_props), 93 }; 94 95 status = pdev_device_add(&pdev, 0, &child_2_args, &child_2->zxdev); 96 if (status != ZX_OK) { 97 zxlogf(ERROR, "%s: pdev_device_add failed: %d\n", DRIVER_NAME, status); 98 free(child_2); 99 return status; 100 } 101 102 qemu_test_t* child_3 = calloc(1, sizeof(qemu_test_t)); 103 if (!child_3) { 104 return ZX_ERR_NO_MEMORY; 105 } 106 107 zx_device_prop_t child_3_props[] = { 108 { BIND_PROTOCOL, 0, ZX_PROTOCOL_PLATFORM_DEV }, 109 { BIND_PLATFORM_DEV_VID, 0, PDEV_VID_QEMU }, 110 { BIND_PLATFORM_DEV_PID, 0, PDEV_PID_QEMU }, 111 { BIND_PLATFORM_DEV_DID, 0, PDEV_DID_QEMU_TEST_CHILD_3 }, 112 }; 113 114 device_add_args_t child_3_args = { 115 .version = DEVICE_ADD_ARGS_VERSION, 116 .name = "child-3", 117 .ctx = child_3, 118 .ops = &qemu_test_device_protocol, 119 .props = child_3_props, 120 .prop_count = countof(child_3_props), 121 }; 122 123 status = pdev_device_add(&pdev, 1, &child_3_args, &child_3->zxdev); 124 if (status != ZX_OK) { 125 zxlogf(ERROR, "%s: pdev_device_add failed: %d\n", DRIVER_NAME, status); 126 free(child_3); 127 return status; 128 } 129 130 return ZX_OK; 131} 132 133static zx_driver_ops_t qemu_test_driver_ops = { 134 .version = DRIVER_OPS_VERSION, 135 .bind = qemu_test_bind, 136}; 137 138ZIRCON_DRIVER_BEGIN(qemu_bus, qemu_test_driver_ops, "zircon", "0.1", 4) 139 BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_PLATFORM_DEV), 140 BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_QEMU), 141 BI_ABORT_IF(NE, BIND_PLATFORM_DEV_PID, PDEV_PID_QEMU), 142 BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_DID, PDEV_DID_QEMU_TEST_CHILD_1), 143ZIRCON_DRIVER_END(qemu_bus) 144