LXR linux/arch/x86/include/asm/intel_scu

   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