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1 | /* SPDX-License-Identifier: GPL-2.0 */ | |
2 | /* | |
3 | * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. | |
4 | * Bjorn Helgaas <bjorn.helgaas@hp.com> | |
5 | */ | |
6 | ||
7 | extern struct mutex pnp_lock; | |
8 | extern const struct attribute_group *pnp_dev_groups[]; | |
9 | void *pnp_alloc(long size); | |
10 | ||
11 | int pnp_register_protocol(struct pnp_protocol *protocol); | |
12 | void pnp_unregister_protocol(struct pnp_protocol *protocol); | |
13 | ||
14 | #define PNP_EISA_ID_MASK 0x7fffffff | |
15 | void pnp_eisa_id_to_string(u32 id, char *str); | |
16 | struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id, | |
17 | const char *pnpid); | |
18 | struct pnp_card *pnp_alloc_card(struct pnp_protocol *, int id, char *pnpid); | |
19 | ||
20 | int pnp_add_device(struct pnp_dev *dev); | |
21 | struct pnp_id *pnp_add_id(struct pnp_dev *dev, const char *id); | |
22 | ||
23 | int pnp_add_card(struct pnp_card *card); | |
24 | void pnp_remove_card(struct pnp_card *card); | |
25 | int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev); | |
26 | void pnp_remove_card_device(struct pnp_dev *dev); | |
27 | ||
28 | struct pnp_port { | |
29 | resource_size_t min; /* min base number */ | |
30 | resource_size_t max; /* max base number */ | |
31 | resource_size_t align; /* align boundary */ | |
32 | resource_size_t size; /* size of range */ | |
33 | unsigned char flags; /* port flags */ | |
34 | }; | |
35 | ||
36 | #define PNP_IRQ_NR 256 | |
37 | typedef struct { DECLARE_BITMAP(bits, PNP_IRQ_NR); } pnp_irq_mask_t; | |
38 | ||
39 | struct pnp_irq { | |
40 | pnp_irq_mask_t map; /* bitmap for IRQ lines */ | |
41 | unsigned char flags; /* IRQ flags */ | |
42 | }; | |
43 | ||
44 | struct pnp_dma { | |
45 | unsigned char map; /* bitmask for DMA channels */ | |
46 | unsigned char flags; /* DMA flags */ | |
47 | }; | |
48 | ||
49 | struct pnp_mem { | |
50 | resource_size_t min; /* min base number */ | |
51 | resource_size_t max; /* max base number */ | |
52 | resource_size_t align; /* align boundary */ | |
53 | resource_size_t size; /* size of range */ | |
54 | unsigned char flags; /* memory flags */ | |
55 | }; | |
56 | ||
57 | #define PNP_OPTION_DEPENDENT 0x80000000 | |
58 | #define PNP_OPTION_SET_MASK 0xffff | |
59 | #define PNP_OPTION_SET_SHIFT 12 | |
60 | #define PNP_OPTION_PRIORITY_MASK 0xfff | |
61 | #define PNP_OPTION_PRIORITY_SHIFT 0 | |
62 | ||
63 | #define PNP_RES_PRIORITY_PREFERRED 0 | |
64 | #define PNP_RES_PRIORITY_ACCEPTABLE 1 | |
65 | #define PNP_RES_PRIORITY_FUNCTIONAL 2 | |
66 | #define PNP_RES_PRIORITY_INVALID PNP_OPTION_PRIORITY_MASK | |
67 | ||
68 | struct pnp_option { | |
69 | struct list_head list; | |
70 | unsigned int flags; /* independent/dependent, set, priority */ | |
71 | ||
72 | unsigned long type; /* IORESOURCE_{IO,MEM,IRQ,DMA} */ | |
73 | union { | |
74 | struct pnp_port port; | |
75 | struct pnp_irq irq; | |
76 | struct pnp_dma dma; | |
77 | struct pnp_mem mem; | |
78 | } u; | |
79 | }; | |
80 | ||
81 | int pnp_register_irq_resource(struct pnp_dev *dev, unsigned int option_flags, | |
82 | pnp_irq_mask_t *map, unsigned char flags); | |
83 | int pnp_register_dma_resource(struct pnp_dev *dev, unsigned int option_flags, | |
84 | unsigned char map, unsigned char flags); | |
85 | int pnp_register_port_resource(struct pnp_dev *dev, unsigned int option_flags, | |
86 | resource_size_t min, resource_size_t max, | |
87 | resource_size_t align, resource_size_t size, | |
88 | unsigned char flags); | |
89 | int pnp_register_mem_resource(struct pnp_dev *dev, unsigned int option_flags, | |
90 | resource_size_t min, resource_size_t max, | |
91 | resource_size_t align, resource_size_t size, | |
92 | unsigned char flags); | |
93 | ||
94 | static inline int pnp_option_is_dependent(struct pnp_option *option) | |
95 | { | |
96 | return option->flags & PNP_OPTION_DEPENDENT ? 1 : 0; | |
97 | } | |
98 | ||
99 | static inline unsigned int pnp_option_set(struct pnp_option *option) | |
100 | { | |
101 | return (option->flags >> PNP_OPTION_SET_SHIFT) & PNP_OPTION_SET_MASK; | |
102 | } | |
103 | ||
104 | static inline unsigned int pnp_option_priority(struct pnp_option *option) | |
105 | { | |
106 | return (option->flags >> PNP_OPTION_PRIORITY_SHIFT) & | |
107 | PNP_OPTION_PRIORITY_MASK; | |
108 | } | |
109 | ||
110 | static inline unsigned int pnp_new_dependent_set(struct pnp_dev *dev, | |
111 | int priority) | |
112 | { | |
113 | unsigned int flags; | |
114 | ||
115 | if (priority > PNP_RES_PRIORITY_FUNCTIONAL) { | |
116 | dev_warn(&dev->dev, "invalid dependent option priority %d " | |
117 | "clipped to %d", priority, | |
118 | PNP_RES_PRIORITY_INVALID); | |
119 | priority = PNP_RES_PRIORITY_INVALID; | |
120 | } | |
121 | ||
122 | flags = PNP_OPTION_DEPENDENT | | |
123 | ((dev->num_dependent_sets & PNP_OPTION_SET_MASK) << | |
124 | PNP_OPTION_SET_SHIFT) | | |
125 | ((priority & PNP_OPTION_PRIORITY_MASK) << | |
126 | PNP_OPTION_PRIORITY_SHIFT); | |
127 | ||
128 | dev->num_dependent_sets++; | |
129 | ||
130 | return flags; | |
131 | } | |
132 | ||
133 | char *pnp_option_priority_name(struct pnp_option *option); | |
134 | void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option); | |
135 | ||
136 | void pnp_init_resources(struct pnp_dev *dev); | |
137 | ||
138 | void pnp_fixup_device(struct pnp_dev *dev); | |
139 | void pnp_free_options(struct pnp_dev *dev); | |
140 | int __pnp_add_device(struct pnp_dev *dev); | |
141 | void __pnp_remove_device(struct pnp_dev *dev); | |
142 | ||
143 | int pnp_check_port(struct pnp_dev *dev, struct resource *res); | |
144 | int pnp_check_mem(struct pnp_dev *dev, struct resource *res); | |
145 | int pnp_check_irq(struct pnp_dev *dev, struct resource *res); | |
146 | #ifdef CONFIG_ISA_DMA_API | |
147 | int pnp_check_dma(struct pnp_dev *dev, struct resource *res); | |
148 | #endif | |
149 | ||
150 | char *pnp_resource_type_name(struct resource *res); | |
151 | void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc); | |
152 | ||
153 | void pnp_free_resources(struct pnp_dev *dev); | |
154 | unsigned long pnp_resource_type(struct resource *res); | |
155 | ||
156 | struct pnp_resource { | |
157 | struct list_head list; | |
158 | struct resource res; | |
159 | }; | |
160 | ||
161 | void pnp_free_resource(struct pnp_resource *pnp_res); | |
162 | ||
163 | struct pnp_resource *pnp_add_resource(struct pnp_dev *dev, | |
164 | struct resource *res); | |
165 | struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq, | |
166 | int flags); | |
167 | struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, | |
168 | int flags); | |
169 | struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, | |
170 | resource_size_t start, | |
171 | resource_size_t end, int flags); | |
172 | struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev, | |
173 | resource_size_t start, | |
174 | resource_size_t end, int flags); | |
175 | struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev, | |
176 | resource_size_t start, | |
177 | resource_size_t end); | |
178 | ||
179 | extern int pnp_debug; | |
180 | ||
181 | #if defined(CONFIG_PNP_DEBUG_MESSAGES) | |
182 | #define pnp_dbg(dev, format, arg...) \ | |
183 | ({ if (pnp_debug) dev_printk(KERN_DEBUG, dev, format, ## arg); 0; }) | |
184 | #else | |
185 | #define pnp_dbg(dev, format, arg...) \ | |
186 | ({ if (0) dev_printk(KERN_DEBUG, dev, format, ## arg); 0; }) | |
187 | #endif |