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 */ 17 int intel_scu_ipc_ioread8(u16 addr, u8 *data); 18 19 /* Read two sequential registers */ 20 int intel_scu_ipc_ioread16(u16 addr, u16 *data); 21 22 /* Read four sequential registers */ 23 int intel_scu_ipc_ioread32(u16 addr, u32 *data); 24 25 /* Read a vector */ 26 int intel_scu_ipc_readv(u16 *addr, u8 *data, int len); 27 28 /* Write single register */ 29 int intel_scu_ipc_iowrite8(u16 addr, u8 data); 30 31 /* Write two sequential registers */ 32 int intel_scu_ipc_iowrite16(u16 addr, u16 data); 33 34 /* Write four sequential registers */ 35 int intel_scu_ipc_iowrite32(u16 addr, u32 data); 36 37 /* Write a vector */ 38 int intel_scu_ipc_writev(u16 *addr, u8 *data, int len); 39 40 /* Update single register based on the mask */ 41 int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask); 42 43 /* Issue commands to the SCU with or without data */ 44 int intel_scu_ipc_simple_command(int cmd, int sub); 45 int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen, 46 u32 *out, int outlen); 47 /* I2C control api */ 48 int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data); 49 50 /* Update FW version */ 51 int intel_scu_ipc_fw_update(u8 *buffer, u32 length); 52 53 extern struct blocking_notifier_head intel_scu_notifier; 54 55 static inline void intel_scu_notifier_add(struct notifier_block *nb) 56 { 57 blocking_notifier_chain_register(&intel_scu_notifier, nb); 58 } 59 60 static inline void intel_scu_notifier_remove(struct notifier_block *nb) 61 { 62 blocking_notifier_chain_unregister(&intel_scu_notifier, nb); 63 } 64 65 static 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