1#ifndef _ASM_X86_INTEL_SCU_IPC_H_
2#define  _ASM_X86_INTEL_SCU_IPC_H_
3
4#include <linux/notifier.h>
5
6#define IPCMSG_WARM_RESET	0xF0
7#define IPCMSG_COLD_RESET	0xF1
8#define IPCMSG_SOFT_RESET	0xF2
9#define IPCMSG_COLD_BOOT	0xF3
10
11#define IPCMSG_VRTC		0xFA	 /* Set vRTC device */
12	/* Command id associated with message IPCMSG_VRTC */
13	#define IPC_CMD_VRTC_SETTIME      1 /* Set time */
14	#define IPC_CMD_VRTC_SETALARM     2 /* Set alarm */
15
16/* Read single register */
17int intel_scu_ipc_ioread8(u16 addr, u8 *data);
18
19/* Read two sequential registers */
20int intel_scu_ipc_ioread16(u16 addr, u16 *data);
21
22/* Read four sequential registers */
23int intel_scu_ipc_ioread32(u16 addr, u32 *data);
24
25/* Read a vector */
26int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
27
28/* Write single register */
29int intel_scu_ipc_iowrite8(u16 addr, u8 data);
30
31/* Write two sequential registers */
32int intel_scu_ipc_iowrite16(u16 addr, u16 data);
33
34/* Write four sequential registers */
35int intel_scu_ipc_iowrite32(u16 addr, u32 data);
36
37/* Write a vector */
38int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
39
40/* Update single register based on the mask */
41int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
42
43/* Issue commands to the SCU with or without data */
44int intel_scu_ipc_simple_command(int cmd, int sub);
45int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
46							u32 *out, int outlen);
47/* I2C control api */
48int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
49
50/* Update FW version */
51int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
52
53extern struct blocking_notifier_head intel_scu_notifier;
54
55static inline void intel_scu_notifier_add(struct notifier_block *nb)
56{
57	blocking_notifier_chain_register(&intel_scu_notifier, nb);
58}
59
60static inline void intel_scu_notifier_remove(struct notifier_block *nb)
61{
62	blocking_notifier_chain_unregister(&intel_scu_notifier, nb);
63}
64
65static inline int intel_scu_notifier_post(unsigned long v, void *p)
66{
67	return blocking_notifier_call_chain(&intel_scu_notifier, v, p);
68}
69
70#define		SCU_AVAILABLE		1
71#define		SCU_DOWN		2
72
73#endif
74