| // 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. |
| |
| #ifndef DDK_PROTOCOL_PLATFORM_DEVICE_LIB_H_ |
| #define DDK_PROTOCOL_PLATFORM_DEVICE_LIB_H_ |
| |
| #include <ddk/io-buffer.h> |
| #include <ddk/mmio-buffer.h> |
| #include <ddk/protocol/platform/device.h> |
| #include <zircon/compiler.h> |
| #include <zircon/types.h> |
| |
| __BEGIN_CDECLS |
| |
| // MMIO mapping helper. |
| static inline zx_status_t pdev_map_mmio_buffer(const pdev_protocol_t* pdev, |
| uint32_t index, uint32_t cache_policy, |
| mmio_buffer_t* buffer) { |
| pdev_mmio_t mmio; |
| |
| zx_status_t status = pdev_get_mmio(pdev, index, &mmio); |
| if (status != ZX_OK) { |
| return status; |
| } |
| return mmio_buffer_init(buffer, mmio.offset, mmio.size, mmio.vmo, cache_policy); |
| } |
| |
| __END_CDECLS |
| |
| #endif // DDK_PROTOCOL_PLATFORM_DEVICE_LIB_H_ |
