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_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 */
  22int intel_scu_ipc_ioread8(u16 addr, u8 *data);
  23
  24/* Read two sequential registers */
  25int intel_scu_ipc_ioread16(u16 addr, u16 *data);
  26
  27/* Read four sequential registers */
  28int intel_scu_ipc_ioread32(u16 addr, u32 *data);
  29
  30/* Read a vector */
  31int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
  32
  33/* Write single register */
  34int intel_scu_ipc_iowrite8(u16 addr, u8 data);
  35
  36/* Write two sequential registers */
  37int intel_scu_ipc_iowrite16(u16 addr, u16 data);
  38
  39/* Write four sequential registers */
  40int intel_scu_ipc_iowrite32(u16 addr, u32 data);
  41
  42/* Write a vector */
  43int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
  44
  45/* Update single register based on the mask */
  46int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
  47
  48/* Issue commands to the SCU with or without data */
  49int intel_scu_ipc_simple_command(int cmd, int sub);
  50int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
  51                          u32 *out, int outlen);
  52int 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 */
  56int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
  57
  58/* Update FW version */
  59int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
  60
  61extern struct blocking_notifier_head intel_scu_notifier;
  62
  63static inline void intel_scu_notifier_add(struct notifier_block *nb)
  64{
  65        blocking_notifier_chain_register(&intel_scu_notifier, nb);
  66}
  67
  68static inline void intel_scu_notifier_remove(struct notifier_block *nb)
  69{
  70        blocking_notifier_chain_unregister(&intel_scu_notifier, nb);
  71}
  72
  73static 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
  82