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