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_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