1 /* 2 * cs_internal.h -- definitions internal to the PCMCIA core modules 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * The initial developer of the original code is David A. Hinds 9 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 10 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 11 * 12 * (C) 1999 David A. Hinds 13 * (C) 2003 - 2008 Dominik Brodowski 14 * 15 * 16 * This file contains definitions _only_ needed by the PCMCIA core modules. 17 * It must not be included by PCMCIA socket drivers or by PCMCIA device 18 * drivers. 19 */ 20 21 #ifndef _LINUX_CS_INTERNAL_H 22 #define _LINUX_CS_INTERNAL_H 23 24 #include <linux/kref.h> 25 26 /* Flags in client state */ 27 #define CLIENT_WIN_REQ(i) (0x1<<(i)) 28 29 /* Each card function gets one of these guys */ 30 typedef struct config_t { 31 struct kref ref; 32 unsigned int state; 33 unsigned int Attributes; 34 unsigned int IntType; 35 unsigned int ConfigBase; 36 unsigned char Status, Pin, Copy, Option, ExtStatus; 37 unsigned int CardValues; 38 io_req_t io; 39 struct { 40 u_int Attributes; 41 } irq; 42 } config_t; 43 44 45 struct cis_cache_entry { 46 struct list_head node; 47 unsigned int addr; 48 unsigned int len; 49 unsigned int attr; 50 unsigned char cache[0]; 51 }; 52 53 struct pccard_resource_ops { 54 int (*validate_mem) (struct pcmcia_socket *s); 55 int (*adjust_io_region) (struct resource *res, 56 unsigned long r_start, 57 unsigned long r_end, 58 struct pcmcia_socket *s); 59 struct resource* (*find_io) (unsigned long base, int num, 60 unsigned long align, 61 struct pcmcia_socket *s); 62 struct resource* (*find_mem) (unsigned long base, unsigned long num, 63 unsigned long align, int low, 64 struct pcmcia_socket *s); 65 int (*add_io) (struct pcmcia_socket *s, 66 unsigned int action, 67 unsigned long r_start, 68 unsigned long r_end); 69 int (*add_mem) (struct pcmcia_socket *s, 70 unsigned int action, 71 unsigned long r_start, 72 unsigned long r_end); 73 int (*init) (struct pcmcia_socket *s); 74 void (*exit) (struct pcmcia_socket *s); 75 }; 76 77 /* Flags in config state */ 78 #define CONFIG_LOCKED 0x01 79 #define CONFIG_IRQ_REQ 0x02 80 #define CONFIG_IO_REQ 0x04 81 82 /* Flags in socket state */ 83 #define SOCKET_PRESENT 0x0008 84 #define SOCKET_INUSE 0x0010 85 #define SOCKET_SUSPEND 0x0080 86 #define SOCKET_WIN_REQ(i) (0x0100<<(i)) 87 #define SOCKET_CARDBUS 0x8000 88 #define SOCKET_CARDBUS_CONFIG 0x10000 89 90 static inline int cs_socket_get(struct pcmcia_socket *skt) 91 { 92 int ret; 93 94 WARN_ON(skt->state & SOCKET_INUSE); 95 96 ret = try_module_get(skt->owner); 97 if (ret) 98 skt->state |= SOCKET_INUSE; 99 return ret; 100 } 101 102 static inline void cs_socket_put(struct pcmcia_socket *skt) 103 { 104 if (skt->state & SOCKET_INUSE) { 105 skt->state &= ~SOCKET_INUSE; 106 module_put(skt->owner); 107 } 108 } 109 110 111 /* 112 * Stuff internal to module "pcmcia_core": 113 */ 114 115 /* cistpl.c */ 116 int verify_cis_cache(struct pcmcia_socket *s); 117 118 /* rsrc_mgr.c */ 119 void release_resource_db(struct pcmcia_socket *s); 120 121 /* socket_sysfs.c */ 122 extern int pccard_sysfs_add_socket(struct device *dev); 123 extern void pccard_sysfs_remove_socket(struct device *dev); 124 125 /* cardbus.c */ 126 int cb_alloc(struct pcmcia_socket *s); 127 void cb_free(struct pcmcia_socket *s); 128 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, 129 void *ptr); 130 131 132 133 /* 134 * Stuff exported by module "pcmcia_core" to module "pcmcia" 135 */ 136 137 struct pcmcia_callback{ 138 struct module *owner; 139 int (*event) (struct pcmcia_socket *s, 140 event_t event, int priority); 141 void (*requery) (struct pcmcia_socket *s, int new_cis); 142 int (*suspend) (struct pcmcia_socket *s); 143 int (*resume) (struct pcmcia_socket *s); 144 }; 145 146 /* cs.c */ 147 extern struct rw_semaphore pcmcia_socket_list_rwsem; 148 extern struct list_head pcmcia_socket_list; 149 extern struct class pcmcia_socket_class; 150 151 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c); 152 struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr); 153 154 int pcmcia_suspend_card(struct pcmcia_socket *skt); 155 int pcmcia_resume_card(struct pcmcia_socket *skt); 156 157 int pcmcia_eject_card(struct pcmcia_socket *skt); 158 int pcmcia_insert_card(struct pcmcia_socket *skt); 159 160 struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt); 161 void pcmcia_put_socket(struct pcmcia_socket *skt); 162 163 /* cistpl.c */ 164 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, 165 u_int addr, u_int len, void *ptr); 166 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, 167 u_int addr, u_int len, void *ptr); 168 void release_cis_mem(struct pcmcia_socket *s); 169 void destroy_cis_cache(struct pcmcia_socket *s); 170 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, 171 cisdata_t code, void *parse); 172 int pcmcia_replace_cis(struct pcmcia_socket *s, 173 const u8 *data, const size_t len); 174 int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count); 175 176 /* loop over CIS entries */ 177 int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function, 178 cisdata_t code, cisparse_t *parse, void *priv_data, 179 int (*loop_tuple) (tuple_t *tuple, 180 cisparse_t *parse, 181 void *priv_data)); 182 183 int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, 184 tuple_t *tuple); 185 186 int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, 187 tuple_t *tuple); 188 189 int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple); 190 191 192 /* rsrc_mgr.c */ 193 int pcmcia_validate_mem(struct pcmcia_socket *s); 194 struct resource *pcmcia_find_io_region(unsigned long base, 195 int num, 196 unsigned long align, 197 struct pcmcia_socket *s); 198 int pcmcia_adjust_io_region(struct resource *res, 199 unsigned long r_start, 200 unsigned long r_end, 201 struct pcmcia_socket *s); 202 struct resource *pcmcia_find_mem_region(u_long base, 203 u_long num, 204 u_long align, 205 int low, 206 struct pcmcia_socket *s); 207 208 /* 209 * Stuff internal to module "pcmcia". 210 */ 211 /* ds.c */ 212 extern struct bus_type pcmcia_bus_type; 213 214 /* pcmcia_resource.c */ 215 extern int pcmcia_release_configuration(struct pcmcia_device *p_dev); 216 217 #ifdef CONFIG_PCMCIA_IOCTL 218 /* ds.c */ 219 extern spinlock_t pcmcia_dev_list_lock; 220 221 extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev); 222 extern void pcmcia_put_dev(struct pcmcia_device *p_dev); 223 224 struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, 225 unsigned int function); 226 227 /* pcmcia_ioctl.c */ 228 extern void __init pcmcia_setup_ioctl(void); 229 extern void __exit pcmcia_cleanup_ioctl(void); 230 extern void handle_event(struct pcmcia_socket *s, event_t event); 231 extern int handle_request(struct pcmcia_socket *s, event_t event); 232 233 #else /* CONFIG_PCMCIA_IOCTL */ 234 235 static inline void __init pcmcia_setup_ioctl(void) { return; } 236 static inline void __exit pcmcia_cleanup_ioctl(void) { return; } 237 static inline void handle_event(struct pcmcia_socket *s, event_t event) 238 { 239 return; 240 } 241 static inline int handle_request(struct pcmcia_socket *s, event_t event) 242 { 243 return 0; 244 } 245 246 #endif /* CONFIG_PCMCIA_IOCTL */ 247 248 #endif /* _LINUX_CS_INTERNAL_H */ 249