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 /* Flags in config state */ 54 #define CONFIG_LOCKED 0x01 55 #define CONFIG_IRQ_REQ 0x02 56 #define CONFIG_IO_REQ 0x04 57 58 /* Flags in socket state */ 59 #define SOCKET_PRESENT 0x0008 60 #define SOCKET_INUSE 0x0010 61 #define SOCKET_SUSPEND 0x0080 62 #define SOCKET_WIN_REQ(i) (0x0100<<(i)) 63 #define SOCKET_CARDBUS 0x8000 64 #define SOCKET_CARDBUS_CONFIG 0x10000 65 66 static inline int cs_socket_get(struct pcmcia_socket *skt) 67 { 68 int ret; 69 70 WARN_ON(skt->state & SOCKET_INUSE); 71 72 ret = try_module_get(skt->owner); 73 if (ret) 74 skt->state |= SOCKET_INUSE; 75 return ret; 76 } 77 78 static inline void cs_socket_put(struct pcmcia_socket *skt) 79 { 80 if (skt->state & SOCKET_INUSE) { 81 skt->state &= ~SOCKET_INUSE; 82 module_put(skt->owner); 83 } 84 } 85 86 #ifdef CONFIG_PCMCIA_DEBUG 87 extern int cs_debug_level(int); 88 89 #define cs_dbg(skt, lvl, fmt, arg...) do { \ 90 if (cs_debug_level(lvl)) \ 91 dev_printk(KERN_DEBUG, &skt->dev, \ 92 "cs: " fmt, ## arg); \ 93 } while (0) 94 #define __cs_dbg(lvl, fmt, arg...) do { \ 95 if (cs_debug_level(lvl)) \ 96 printk(KERN_DEBUG \ 97 "cs: " fmt, ## arg); \ 98 } while (0) 99 100 #else 101 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0) 102 #define __cs_dbg(lvl, fmt, arg...) do { } while (0) 103 #endif 104 105 #define cs_err(skt, fmt, arg...) \ 106 dev_printk(KERN_ERR, &skt->dev, "cs: " fmt, ## arg) 107 108 109 /* 110 * Stuff internal to module "pcmcia_core": 111 */ 112 113 /* cistpl.c */ 114 int verify_cis_cache(struct pcmcia_socket *s); 115 116 /* rsrc_mgr.c */ 117 void release_resource_db(struct pcmcia_socket *s); 118 119 /* socket_sysfs.c */ 120 extern int pccard_sysfs_add_socket(struct device *dev); 121 extern void pccard_sysfs_remove_socket(struct device *dev); 122 123 /* cardbus.c */ 124 int cb_alloc(struct pcmcia_socket *s); 125 void cb_free(struct pcmcia_socket *s); 126 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, 127 void *ptr); 128 129 130 131 /* 132 * Stuff exported by module "pcmcia_core" to module "pcmcia" 133 */ 134 135 struct pcmcia_callback{ 136 struct module *owner; 137 int (*event) (struct pcmcia_socket *s, 138 event_t event, int priority); 139 void (*requery) (struct pcmcia_socket *s, int new_cis); 140 int (*suspend) (struct pcmcia_socket *s); 141 int (*resume) (struct pcmcia_socket *s); 142 }; 143 144 /* cs.c */ 145 extern struct rw_semaphore pcmcia_socket_list_rwsem; 146 extern struct list_head pcmcia_socket_list; 147 int pcmcia_get_window(struct pcmcia_socket *s, 148 window_handle_t *handle, 149 int idx, 150 win_req_t *req); 151 int pccard_reset_card(struct pcmcia_socket *skt); 152 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c); 153 154 /* cistpl.c */ 155 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, 156 u_int addr, u_int len, void *ptr); 157 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, 158 u_int addr, u_int len, void *ptr); 159 void release_cis_mem(struct pcmcia_socket *s); 160 void destroy_cis_cache(struct pcmcia_socket *s); 161 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, 162 cisdata_t code, void *parse); 163 164 /* rsrc_mgr.c */ 165 int pcmcia_validate_mem(struct pcmcia_socket *s); 166 struct resource *pcmcia_find_io_region(unsigned long base, 167 int num, 168 unsigned long align, 169 struct pcmcia_socket *s); 170 int pcmcia_adjust_io_region(struct resource *res, 171 unsigned long r_start, 172 unsigned long r_end, 173 struct pcmcia_socket *s); 174 struct resource *pcmcia_find_mem_region(u_long base, 175 u_long num, 176 u_long align, 177 int low, 178 struct pcmcia_socket *s); 179 180 #endif /* _LINUX_CS_INTERNAL_H */ 181