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/arch/arm/mach-fsm/qdsp6/dal.h

https://bitbucket.org/sammyz/iscream_thunderc-2.6.35-rebase
C++ Header | 94 lines | 62 code | 14 blank | 18 comment | 3 complexity | 2bcf54114b41b08fcbbc0e648305d26e MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0 
    

  1. /* arch/arm/mach-msm/qdsp6/dal.h
    2. 

  2.  *
    3. 

  3.  * Copyright (C) 2009 Google, Inc.
    4. 

  4.  * Author: Brian Swetland <swetland@google.com>
    5. 

  5.  *
    6. 

  6.  * This software is licensed under the terms of the GNU General Public
    7. 

  7.  * License version 2, as published by the Free Software Foundation, and
    8. 

  8.  * may be copied, distributed, and modified under those terms.
    9. 

  9.  *
    10. 

  10.  * This program is distributed in the hope that it will be useful,
    11. 

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13. 

  13.  * GNU General Public License for more details.
    14. 

  14.  *
    15. 

  15.  */
    16. 

  16. 

  17. #ifndef _MACH_MSM_DAL_
    18. 

  18. #define _MACH_MSM_DAL_
    19. 

  19. 

  20. struct dal_client;
    21. 

  21. 

  22. struct dal_info {
    23. 

  23. 	uint32_t size;
    24. 

  24. 	uint32_t version;
    25. 

  25. 	char name[32];
    26. 

  26. };
    27. 

  27. 

  28. typedef void (*dal_event_func_t)(void *data, int len, void *cookie);
    29. 

  29. 

  30. struct dal_client *dal_attach(uint32_t device_id, const char *name,
    31. 

  31. 			uint32_t cpu, dal_event_func_t func, void *cookie);
    32. 

  32. 

  33. int dal_detach(struct dal_client *client);
    34. 

  34. 

  35. int dal_call(struct dal_client *client,
    36. 

  36. 	     unsigned ddi, unsigned prototype,
    37. 

  37. 	     void *data, int data_len,
    38. 

  38. 	     void *reply, int reply_max);
    39. 

  39. 

  40. void dal_trace(struct dal_client *client);
    41. 

  41. void dal_trace_dump(struct dal_client *client);
    42. 

  42. 

  43. /* function to call before panic on stalled dal calls */
    44. 

  44. void dal_set_oops(struct dal_client *client, void (*oops)(void));
    45. 

  45. 

  46. /* convenience wrappers */
    47. 

  47. int dal_call_f0(struct dal_client *client, uint32_t ddi,
    48. 

  48. 		uint32_t arg1);
    49. 

  49. int dal_call_f1(struct dal_client *client, uint32_t ddi,
    50. 

  50. 		uint32_t arg1, uint32_t arg2);
    51. 

  51. int dal_call_f5(struct dal_client *client, uint32_t ddi,
    52. 

  52. 		void *ibuf, uint32_t ilen);
    53. 

  53. int dal_call_f6(struct dal_client *client, uint32_t ddi,
    54. 

  54. 		uint32_t s1, void *ibuf, uint32_t ilen);
    55. 

  55. int dal_call_f9(struct dal_client *client, uint32_t ddi,
    56. 

  56. 		void *obuf, uint32_t olen);
    57. 

  57. int dal_call_f13(struct dal_client *client, uint32_t ddi, void *ibuf1,
    58. 

  58. 		 uint32_t ilen1, void *ibuf2, uint32_t ilen2, void *obuf,
    59. 

  59. 		 uint32_t olen);
    60. 

  60. int dal_call_f14(struct dal_client *client, uint32_t ddi, void *ibuf,
    61. 

  61. 		 uint32_t ilen, void *obuf1, uint32_t olen1, void *obuf2,
    62. 

  62. 		 uint32_t olen2, uint32_t *oalen2);
    63. 

  63. 

  64. /* common DAL operations */
    65. 

  65. enum {
    66. 

  66. 	DAL_OP_ATTACH = 0,
    67. 

  67. 	DAL_OP_DETACH,
    68. 

  68. 	DAL_OP_INIT,
    69. 

  69. 	DAL_OP_DEINIT,
    70. 

  70. 	DAL_OP_OPEN,
    71. 

  71. 	DAL_OP_CLOSE,
    72. 

  72. 	DAL_OP_INFO,
    73. 

  73. 	DAL_OP_POWEREVENT,
    74. 

  74. 	DAL_OP_SYSREQUEST,
    75. 

  75. 	DAL_OP_FIRST_DEVICE_API,
    76. 

  76. };
    77. 

  77. 

  78. static inline int check_version(struct dal_client *client, uint32_t version)
    79. 

  79. {
    80. 

  80. 	struct dal_info info;
    81. 

  81. 	int res;
    82. 

  82. 

  83. 	res = dal_call_f9(client, DAL_OP_INFO, &info, sizeof(struct dal_info));
    84. 

  84. 	if (!res) {
    85. 

  85. 		if (((info.version & 0xFFFF0000) != (version & 0xFFFF0000)) ||
    86. 

  86. 		((info.version & 0x0000FFFF) <
    87. 

  87. 		(version & 0x0000FFFF))) {
    88. 

  88. 			res = -EINVAL;
    89. 

  89. 		}
    90. 

  90. 	}
    91. 

  91. 	return res;
    92. 

  92. }
    93. 

  93. 

  94. #endif
    95. 

  95.