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mei
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hbm.h

hbm.h 1.9 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /*
    3. 

  3.  * Copyright (c) 2003-2018, Intel Corporation. All rights reserved.
    4. 

  4.  * Intel Management Engine Interface (Intel MEI) Linux driver
    5. 

  5.  */
    6. 

  6. 

  7. #ifndef _MEI_HBM_H_
    8. 

  8. #define _MEI_HBM_H_
    9. 

  9. 

  10. struct mei_device;
    11. 

  11. struct mei_msg_hdr;
    12. 

  12. struct mei_cl;
    13. 

  13. struct mei_dma_data;
    14. 

  14. 

  15. /**
    16. 

  16.  * enum mei_hbm_state - host bus message protocol state
    17. 

  17.  *
    18. 

  18.  * @MEI_HBM_IDLE : protocol not started
    19. 

  19.  * @MEI_HBM_STARTING : start request message was sent
    20. 

  20.  * @MEI_HBM_CAP_SETUP : capabilities request message was sent
    21. 

  21.  * @MEI_HBM_DR_SETUP : dma ring setup request message was sent
    22. 

  22.  * @MEI_HBM_ENUM_CLIENTS : enumeration request was sent
    23. 

  23.  * @MEI_HBM_CLIENT_PROPERTIES : acquiring clients properties
    24. 

  24.  * @MEI_HBM_STARTED : enumeration was completed
    25. 

  25.  * @MEI_HBM_STOPPED : stopping exchange
    26. 

  26.  */
    27. 

  27. enum mei_hbm_state {
    28. 

  28. 	MEI_HBM_IDLE = 0,
    29. 

  29. 	MEI_HBM_STARTING,
    30. 

  30. 	MEI_HBM_CAP_SETUP,
    31. 

  31. 	MEI_HBM_DR_SETUP,
    32. 

  32. 	MEI_HBM_ENUM_CLIENTS,
    33. 

  33. 	MEI_HBM_CLIENT_PROPERTIES,
    34. 

  34. 	MEI_HBM_STARTED,
    35. 

  35. 	MEI_HBM_STOPPED,
    36. 

  36. };
    37. 

  37. 

  38. const char *mei_hbm_state_str(enum mei_hbm_state state);
    39. 

  39. 

  40. int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr);
    41. 

  41. 

  42. void mei_hbm_idle(struct mei_device *dev);
    43. 

  43. void mei_hbm_reset(struct mei_device *dev);
    44. 

  44. int mei_hbm_start_req(struct mei_device *dev);
    45. 

  45. int mei_hbm_start_wait(struct mei_device *dev);
    46. 

  46. int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl);
    47. 

  47. int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl);
    48. 

  48. int mei_hbm_cl_disconnect_rsp(struct mei_device *dev, struct mei_cl *cl);
    49. 

  49. int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl);
    50. 

  50. bool mei_hbm_version_is_supported(struct mei_device *dev);
    51. 

  51. int mei_hbm_pg(struct mei_device *dev, u8 pg_cmd);
    52. 

  52. void mei_hbm_pg_resume(struct mei_device *dev);
    53. 

  53. int mei_hbm_cl_notify_req(struct mei_device *dev,
    54. 

  54. 			  struct mei_cl *cl, u8 request);
    55. 

  55. int mei_hbm_cl_dma_map_req(struct mei_device *dev, struct mei_cl *cl);
    56. 

  56. int mei_hbm_cl_dma_unmap_req(struct mei_device *dev, struct mei_cl *cl);
    57. 

  57. #endif /* _MEI_HBM_H_ */
    58. 

  58.