1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_INTEL_SCU_IPC_H_
3#define  _ASM_X86_INTEL_SCU_IPC_H_
4
5#include <linux/ioport.h>
6
7struct device;
8struct intel_scu_ipc_dev;
9
10/**
11 * struct intel_scu_ipc_data - Data used to configure SCU IPC
12 * @mem: Base address of SCU IPC MMIO registers
13 * @irq: The IRQ number used for SCU (optional)
14 */
15struct intel_scu_ipc_data {
16	struct resource mem;
17	int irq;
18};
19
20struct intel_scu_ipc_dev *
21__intel_scu_ipc_register(struct device *parent,
22			 const struct intel_scu_ipc_data *scu_data,
23			 struct module *owner);
24
25#define intel_scu_ipc_register(parent, scu_data)  \
26	__intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
27
28void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu);
29
30struct intel_scu_ipc_dev *
31__devm_intel_scu_ipc_register(struct device *parent,
32			      const struct intel_scu_ipc_data *scu_data,
33			      struct module *owner);
34
35#define devm_intel_scu_ipc_register(parent, scu_data)  \
36	__devm_intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
37
38struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void);
39void intel_scu_ipc_dev_put(struct intel_scu_ipc_dev *scu);
40struct intel_scu_ipc_dev *devm_intel_scu_ipc_dev_get(struct device *dev);
41
42int intel_scu_ipc_dev_ioread8(struct intel_scu_ipc_dev *scu, u16 addr,
43			      u8 *data);
44int intel_scu_ipc_dev_iowrite8(struct intel_scu_ipc_dev *scu, u16 addr,
45			       u8 data);
46int intel_scu_ipc_dev_readv(struct intel_scu_ipc_dev *scu, u16 *addr,
47			    u8 *data, size_t len);
48int intel_scu_ipc_dev_writev(struct intel_scu_ipc_dev *scu, u16 *addr,
49			     u8 *data, size_t len);
50
51int intel_scu_ipc_dev_update(struct intel_scu_ipc_dev *scu, u16 addr,
52			     u8 data, u8 mask);
53
54int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd,
55				     int sub);
56int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
57					int sub, const void *in, size_t inlen,
58					size_t size, void *out, size_t outlen);
59
60static inline int intel_scu_ipc_dev_command(struct intel_scu_ipc_dev *scu, int cmd,
61					    int sub, const void *in, size_t inlen,
62					    void *out, size_t outlen)
63{
64	return intel_scu_ipc_dev_command_with_size(scu, cmd, sub, in, inlen,
65						   inlen, out, outlen);
66}
67
68#endif
69