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