| Srinivas Pandruvada | 35f2c14 | 2019-06-26 15:38:43 -0700 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Intel Speed Select Interface: OS to hardware Interface |
| 4 | * Copyright (c) 2019, Intel Corporation. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> |
| 8 | */ |
| 9 | |
| 10 | #ifndef __ISST_IF_H |
| 11 | #define __ISST_IF_H |
| 12 | |
| 13 | #include <linux/types.h> |
| 14 | |
| 15 | /** |
| 16 | * struct isst_if_platform_info - Define platform information |
| 17 | * @api_version: Version of the firmware document, which this driver |
| 18 | * can communicate |
| 19 | * @driver_version: Driver version, which will help user to send right |
| 20 | * commands. Even if the firmware is capable, driver may |
| 21 | * not be ready |
| 22 | * @max_cmds_per_ioctl: Returns the maximum number of commands driver will |
| 23 | * accept in a single ioctl |
| 24 | * @mbox_supported: Support of mail box interface |
| 25 | * @mmio_supported: Support of mmio interface for core-power feature |
| 26 | * |
| 27 | * Used to return output of IOCTL ISST_IF_GET_PLATFORM_INFO. This |
| 28 | * information can be used by the user space, to get the driver, firmware |
| 29 | * support and also number of commands to send in a single IOCTL request. |
| 30 | */ |
| 31 | struct isst_if_platform_info { |
| 32 | __u16 api_version; |
| 33 | __u16 driver_version; |
| 34 | __u16 max_cmds_per_ioctl; |
| 35 | __u8 mbox_supported; |
| 36 | __u8 mmio_supported; |
| 37 | }; |
| 38 | |
| 39 | #define ISST_IF_MAGIC 0xFE |
| 40 | #define ISST_IF_GET_PLATFORM_INFO _IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *) |
| 41 | #endif |