arch/x86/include/asm/intel_scu_ipc.h

   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