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linux-arkmicro
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linux
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drivers
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pci
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hotplug
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cpci_hotplug.h

cpci_hotplug.h 2.4 KB
Cronologia Originale

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
    2. 

  2. /*
    3. 

  3.  * CompactPCI Hot Plug Core Functions
    4. 

  4.  *
    5. 

  5.  * Copyright (C) 2002 SOMA Networks, Inc.
    6. 

  6.  * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
    7. 

  7.  * Copyright (C) 2001 IBM Corp.
    8. 

  8.  *
    9. 

  9.  * All rights reserved.
    10. 

  10.  *
    11. 

  11.  * Send feedback to <scottm@somanetworks.com>
    12. 

  12.  */
    13. 

  13. 

  14. #ifndef _CPCI_HOTPLUG_H
    15. 

  15. #define _CPCI_HOTPLUG_H
    16. 

  16. 

  17. #include <linux/types.h>
    18. 

  18. #include <linux/pci.h>
    19. 

  19. #include <linux/pci_hotplug.h>
    20. 

  20. 

  21. /* PICMG 2.1 R2.0 HS CSR bits: */
    22. 

  22. #define HS_CSR_INS	0x0080
    23. 

  23. #define HS_CSR_EXT	0x0040
    24. 

  24. #define HS_CSR_PI	0x0030
    25. 

  25. #define HS_CSR_LOO	0x0008
    26. 

  26. #define HS_CSR_PIE	0x0004
    27. 

  27. #define HS_CSR_EIM	0x0002
    28. 

  28. #define HS_CSR_DHA	0x0001
    29. 

  29. 

  30. struct slot {
    31. 

  31. 	u8 number;
    32. 

  32. 	unsigned int devfn;
    33. 

  33. 	struct pci_bus *bus;
    34. 

  34. 	struct pci_dev *dev;
    35. 

  35. 	unsigned int extracting;
    36. 

  36. 	struct hotplug_slot *hotplug_slot;
    37. 

  37. 	struct list_head slot_list;
    38. 

  38. };
    39. 

  39. 

  40. struct cpci_hp_controller_ops {
    41. 

  41. 	int (*query_enum)(void);
    42. 

  42. 	int (*enable_irq)(void);
    43. 

  43. 	int (*disable_irq)(void);
    44. 

  44. 	int (*check_irq)(void *dev_id);
    45. 

  45. 	int (*hardware_test)(struct slot *slot, u32 value);
    46. 

  46. 	u8  (*get_power)(struct slot *slot);
    47. 

  47. 	int (*set_power)(struct slot *slot, int value);
    48. 

  48. };
    49. 

  49. 

  50. struct cpci_hp_controller {
    51. 

  51. 	unsigned int irq;
    52. 

  52. 	unsigned long irq_flags;
    53. 

  53. 	char *devname;
    54. 

  54. 	void *dev_id;
    55. 

  55. 	char *name;
    56. 

  56. 	struct cpci_hp_controller_ops *ops;
    57. 

  57. };
    58. 

  58. 

  59. static inline const char *slot_name(struct slot *slot)
    60. 

  60. {
    61. 

  61. 	return hotplug_slot_name(slot->hotplug_slot);
    62. 

  62. }
    63. 

  63. 

  64. int cpci_hp_register_controller(struct cpci_hp_controller *controller);
    65. 

  65. int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
    66. 

  66. int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
    67. 

  67. int cpci_hp_unregister_bus(struct pci_bus *bus);
    68. 

  68. int cpci_hp_start(void);
    69. 

  69. int cpci_hp_stop(void);
    70. 

  70. 

  71. /*
    72. 

  72.  * Internal function prototypes, these functions should not be used by
    73. 

  73.  * board/chassis drivers.
    74. 

  74.  */
    75. 

  75. u8 cpci_get_attention_status(struct slot *slot);
    76. 

  76. u8 cpci_get_latch_status(struct slot *slot);
    77. 

  77. u8 cpci_get_adapter_status(struct slot *slot);
    78. 

  78. u16 cpci_get_hs_csr(struct slot *slot);
    79. 

  79. int cpci_set_attention_status(struct slot *slot, int status);
    80. 

  80. int cpci_check_and_clear_ins(struct slot *slot);
    81. 

  81. int cpci_check_ext(struct slot *slot);
    82. 

  82. int cpci_clear_ext(struct slot *slot);
    83. 

  83. int cpci_led_on(struct slot *slot);
    84. 

  84. int cpci_led_off(struct slot *slot);
    85. 

  85. int cpci_configure_slot(struct slot *slot);
    86. 

  86. int cpci_unconfigure_slot(struct slot *slot);
    87. 

  87. 

  88. #ifdef CONFIG_HOTPLUG_PCI_CPCI
    89. 

  89. int cpci_hotplug_init(int debug);
    90. 

  90. #else
    91. 

  91. static inline int cpci_hotplug_init(int debug) { return 0; }
    92. 

  92. #endif
    93. 

  93. 

  94. #endif	/* _CPCI_HOTPLUG_H */
    95.