Acasă Explorează Ajutor
Înregistrare Autentificare
phyus
/
linux-vybrid_public
8
0
Bifurcare 0
Fisiere Probleme 0 Trageți solicitările 0 Wiki
Arbore: c7cd606f60
Ramuri Etichete
linux-vybrid_pu...
/
include
/
linux
/
can
/
dev.h

dev.h 2.1 KB
Istoric Crud

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 
  1. /*
    2. 

  2.  * linux/can/dev.h
    3. 

  3.  *
    4. 

  4.  * Definitions for the CAN network device driver interface
    5. 

  5.  *
    6. 

  6.  * Copyright (C) 2006 Andrey Volkov <avolkov@varma-el.com>
    7. 

  7.  *               Varma Electronics Oy
    8. 

  8.  *
    9. 

  9.  * Copyright (C) 2008 Wolfgang Grandegger <wg@grandegger.com>
    10. 

  10.  *
    11. 

  11.  * Send feedback to <socketcan-users@lists.berlios.de>
    12. 

  12.  */
    13. 

  13. 

  14. #ifndef CAN_DEV_H
    15. 

  15. #define CAN_DEV_H
    16. 

  16. 

  17. #include <linux/can/netlink.h>
    18. 

  18. #include <linux/can/error.h>
    19. 

  19. 

  20. /*
    21. 

  21.  * CAN mode
    22. 

  22.  */
    23. 

  23. enum can_mode {
    24. 

  24. 	CAN_MODE_STOP = 0,
    25. 

  25. 	CAN_MODE_START,
    26. 

  26. 	CAN_MODE_SLEEP
    27. 

  27. };
    28. 

  28. 

  29. /*
    30. 

  30.  * CAN common private data
    31. 

  31.  */
    32. 

  32. struct can_priv {
    33. 

  33. 	struct can_device_stats can_stats;
    34. 

  34. 

  35. 	struct can_bittiming bittiming;
    36. 

  36. 	struct can_bittiming_const *bittiming_const;
    37. 

  37. 	struct can_clock clock;
    38. 

  38. 

  39. 	enum can_state state;
    40. 

  40. 	u32 ctrlmode;
    41. 

  41. 

  42. 	int restart_ms;
    43. 

  43. 	struct timer_list restart_timer;
    44. 

  44. 

  45. 	int (*do_set_bittiming)(struct net_device *dev);
    46. 

  46. 	int (*do_set_mode)(struct net_device *dev, enum can_mode mode);
    47. 

  47. 	int (*do_get_state)(const struct net_device *dev,
    48. 

  48. 			    enum can_state *state);
    49. 

  49. 

  50. 	unsigned int echo_skb_max;
    51. 

  51. 	struct sk_buff **echo_skb;
    52. 

  52. };
    53. 

  53. 

  54. /*
    55. 

  55.  * get_can_dlc(value) - helper macro to cast a given data length code (dlc)
    56. 

  56.  * to __u8 and ensure the dlc value to be max. 8 bytes.
    57. 

  57.  *
    58. 

  58.  * To be used in the CAN netdriver receive path to ensure conformance with
    59. 

  59.  * ISO 11898-1 Chapter 8.4.2.3 (DLC field)
    60. 

  60.  */
    61. 

  61. #define get_can_dlc(i)	(min_t(__u8, (i), 8))
    62. 

  62. 

  63. struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max);
    64. 

  64. void free_candev(struct net_device *dev);
    65. 

  65. 

  66. int open_candev(struct net_device *dev);
    67. 

  67. void close_candev(struct net_device *dev);
    68. 

  68. 

  69. int register_candev(struct net_device *dev);
    70. 

  70. void unregister_candev(struct net_device *dev);
    71. 

  71. 

  72. int can_restart_now(struct net_device *dev);
    73. 

  73. void can_bus_off(struct net_device *dev);
    74. 

  74. 

  75. void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
    76. 

  76. 		      unsigned int idx);
    77. 

  77. void can_get_echo_skb(struct net_device *dev, unsigned int idx);
    78. 

  78. void can_free_echo_skb(struct net_device *dev, unsigned int idx);
    79. 

  79. 

  80. struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf);
    81. 

  81. struct sk_buff *alloc_can_err_skb(struct net_device *dev,
    82. 

  82. 				  struct can_frame **cf);
    83. 

  83. 

  84. #endif /* CAN_DEV_H */
    85.