1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PLATFORM_X86_INTEL_SCU_IPC_H_
3 #define __PLATFORM_X86_INTEL_SCU_IPC_H_
4
5 #include <linux/ioport.h>
6
7 struct device;
8 struct 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 */
15 struct intel_scu_ipc_data {
16 struct resource mem;
17 int irq;
18 };
19
20 struct 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
28 void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu);
29
30 struct 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
38 struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void);
39 void intel_scu_ipc_dev_put(struct intel_scu_ipc_dev *scu);
40 struct intel_scu_ipc_dev *devm_intel_scu_ipc_dev_get(struct device *dev);
41
42 int intel_scu_ipc_dev_ioread8(struct intel_scu_ipc_dev *scu, u16 addr,
43 u8 *data);
44 int intel_scu_ipc_dev_iowrite8(struct intel_scu_ipc_dev *scu, u16 addr,
45 u8 data);
46 int intel_scu_ipc_dev_readv(struct intel_scu_ipc_dev *scu, u16 *addr,
47 u8 *data, size_t len);
48 int intel_scu_ipc_dev_writev(struct intel_scu_ipc_dev *scu, u16 *addr,
49 u8 *data, size_t len);
50
51 int intel_scu_ipc_dev_update(struct intel_scu_ipc_dev *scu, u16 addr,
52 u8 data, u8 mask);
53
54 int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd,
55 int sub);
56 int 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
60 static 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
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