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_INDIRECT_READ    0x02
   7 #define IPCMSG_INDIRECT_WRITE   0x05
   8
   9 #define IPCMSG_COLD_OFF         0x80    /* Only for Tangier */
  10
  11 #define IPCMSG_WARM_RESET       0xF0
  12 #define IPCMSG_COLD_RESET       0xF1
  13 #define IPCMSG_SOFT_RESET       0xF2
  14 #define IPCMSG_COLD_BOOT        0xF3
  15
  16 #define IPCMSG_VRTC             0xFA     /* Set vRTC device */
  17         /* Command id associated with message IPCMSG_VRTC */
  18         #define IPC_CMD_VRTC_SETTIME      1 /* Set time */
  19         #define IPC_CMD_VRTC_SETALARM     2 /* Set alarm */
  20
  21 /* Read single register */
  22 int intel_scu_ipc_ioread8(u16 addr, u8 *data);
  23
  24 /* Read two sequential registers */
  25 int intel_scu_ipc_ioread16(u16 addr, u16 *data);
  26
  27 /* Read four sequential registers */
  28 int intel_scu_ipc_ioread32(u16 addr, u32 *data);
  29
  30 /* Read a vector */
  31 int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
  32
  33 /* Write single register */
  34 int intel_scu_ipc_iowrite8(u16 addr, u8 data);
  35
  36 /* Write two sequential registers */
  37 int intel_scu_ipc_iowrite16(u16 addr, u16 data);
  38
  39 /* Write four sequential registers */
  40 int intel_scu_ipc_iowrite32(u16 addr, u32 data);
  41
  42 /* Write a vector */
  43 int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
  44
  45 /* Update single register based on the mask */
  46 int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
  47
  48 /* Issue commands to the SCU with or without data */
  49 int intel_scu_ipc_simple_command(int cmd, int sub);
  50 int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
  51                           u32 *out, int outlen);
  52 int intel_scu_ipc_raw_command(int cmd, int sub, u8 *in, int inlen,
  53                               u32 *out, int outlen, u32 dptr, u32 sptr);
  54
  55 /* I2C control api */
  56 int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
  57
  58 /* Update FW version */
  59 int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
  60
  61 extern struct blocking_notifier_head intel_scu_notifier;
  62
  63 static inline void intel_scu_notifier_add(struct notifier_block *nb)
  64 {
  65         blocking_notifier_chain_register(&intel_scu_notifier, nb);
  66 }
  67
  68 static inline void intel_scu_notifier_remove(struct notifier_block *nb)
  69 {
  70         blocking_notifier_chain_unregister(&intel_scu_notifier, nb);
  71 }
  72
  73 static inline int intel_scu_notifier_post(unsigned long v, void *p)
  74 {
  75         return blocking_notifier_call_chain(&intel_scu_notifier, v, p);
  76 }
  77
  78 #define         SCU_AVAILABLE           1
  79 #define         SCU_DOWN                2
  80
  81 #endif