1 /* 2 * cs_internal.h 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 */ 14 15 #ifndef _LINUX_CS_INTERNAL_H 16 #define _LINUX_CS_INTERNAL_H 17 18 #include <linux/config.h> 19 20 #define CLIENT_MAGIC 0x51E6 21 typedef struct client_t client_t; 22 23 /* Flags in client state */ 24 #define CLIENT_CONFIG_LOCKED 0x0001 25 #define CLIENT_IRQ_REQ 0x0002 26 #define CLIENT_IO_REQ 0x0004 27 #define CLIENT_UNBOUND 0x0008 28 #define CLIENT_STALE 0x0010 29 #define CLIENT_WIN_REQ(i) (0x20<<(i)) 30 #define CLIENT_CARDBUS 0x8000 31 32 #define REGION_MAGIC 0xE3C9 33 typedef struct region_t { 34 u_short region_magic; 35 u_short state; 36 dev_info_t dev_info; 37 client_handle_t mtd; 38 u_int MediaID; 39 region_info_t info; 40 } region_t; 41 42 #define REGION_STALE 0x01 43 44 /* Each card function gets one of these guys */ 45 typedef struct config_t { 46 u_int state; 47 u_int Attributes; 48 u_int Vcc, Vpp1, Vpp2; 49 u_int IntType; 50 u_int ConfigBase; 51 u_char Status, Pin, Copy, Option, ExtStatus; 52 u_int Present; 53 u_int CardValues; 54 io_req_t io; 55 struct { 56 u_int Attributes; 57 } irq; 58 } config_t; 59 60 struct cis_cache_entry { 61 struct list_head node; 62 unsigned int addr; 63 unsigned int len; 64 unsigned int attr; 65 unsigned char cache[0]; 66 }; 67 68 /* Flags in config state */ 69 #define CONFIG_LOCKED 0x01 70 #define CONFIG_IRQ_REQ 0x02 71 #define CONFIG_IO_REQ 0x04 72 73 /* Flags in socket state */ 74 #define SOCKET_PRESENT 0x0008 75 #define SOCKET_INUSE 0x0010 76 #define SOCKET_SUSPEND 0x0080 77 #define SOCKET_WIN_REQ(i) (0x0100<<(i)) 78 #define SOCKET_REGION_INFO 0x4000 79 #define SOCKET_CARDBUS 0x8000 80 #define SOCKET_CARDBUS_CONFIG 0x10000 81 82 static inline int cs_socket_get(struct pcmcia_socket *skt) 83 { 84 int ret; 85 86 WARN_ON(skt->state & SOCKET_INUSE); 87 88 ret = try_module_get(skt->owner); 89 if (ret) 90 skt->state |= SOCKET_INUSE; 91 return ret; 92 } 93 94 static inline void cs_socket_put(struct pcmcia_socket *skt) 95 { 96 if (skt->state & SOCKET_INUSE) { 97 skt->state &= ~SOCKET_INUSE; 98 module_put(skt->owner); 99 } 100 } 101 102 #define CHECK_HANDLE(h) \ 103 (((h) == NULL) || ((h)->client_magic != CLIENT_MAGIC)) 104 105 #define CHECK_SOCKET(s) \ 106 (((s) >= sockets) || (socket_table[s]->ops == NULL)) 107 108 #define SOCKET(h) (h->Socket) 109 #define CONFIG(h) (&SOCKET(h)->config[(h)->Function]) 110 111 #define CHECK_REGION(r) \ 112 (((r) == NULL) || ((r)->region_magic != REGION_MAGIC)) 113 114 #define CHECK_ERASEQ(q) \ 115 (((q) == NULL) || ((q)->eraseq_magic != ERASEQ_MAGIC)) 116 117 #define EVENT(h, e, p) \ 118 ((h)->event_handler((e), (p), &(h)->event_callback_args)) 119 120 /* In cardbus.c */ 121 int cb_alloc(struct pcmcia_socket *s); 122 void cb_free(struct pcmcia_socket *s); 123 int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, void *ptr); 124 125 /* In cistpl.c */ 126 int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, 127 u_int addr, u_int len, void *ptr); 128 void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, 129 u_int addr, u_int len, void *ptr); 130 void release_cis_mem(struct pcmcia_socket *s); 131 void destroy_cis_cache(struct pcmcia_socket *s); 132 int verify_cis_cache(struct pcmcia_socket *s); 133 int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse); 134 135 /* In rsrc_mgr */ 136 void pcmcia_validate_mem(struct pcmcia_socket *s); 137 struct resource *pcmcia_find_io_region(unsigned long base, int num, unsigned long align, 138 struct pcmcia_socket *s); 139 int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start, 140 unsigned long r_end, struct pcmcia_socket *s); 141 struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, 142 int low, struct pcmcia_socket *s); 143 void release_resource_db(struct pcmcia_socket *s); 144 145 /* In socket_sysfs.c */ 146 extern struct class_interface pccard_sysfs_interface; 147 148 /* In cs.c */ 149 extern struct rw_semaphore pcmcia_socket_list_rwsem; 150 extern struct list_head pcmcia_socket_list; 151 int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, int idx, win_req_t *req); 152 int pccard_get_configuration_info(struct pcmcia_socket *s, unsigned int function, config_info_t *config); 153 int pccard_reset_card(struct pcmcia_socket *skt); 154 int pccard_get_status(struct pcmcia_socket *s, unsigned int function, cs_status_t *status); 155 int pccard_access_configuration_register(struct pcmcia_socket *s, unsigned int function, conf_reg_t *reg); 156 157 158 struct pcmcia_callback{ 159 struct module *owner; 160 int (*event) (struct pcmcia_socket *s, event_t event, int priority); 161 void (*requery) (struct pcmcia_socket *s); 162 }; 163 164 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c); 165 166 #define cs_socket_name(skt) ((skt)->dev.class_id) 167 168 #ifdef DEBUG 169 extern int cs_debug_level(int); 170 171 #define cs_dbg(skt, lvl, fmt, arg...) do { \ 172 if (cs_debug_level(lvl)) \ 173 printk(KERN_DEBUG "cs: %s: " fmt, \ 174 cs_socket_name(skt) , ## arg); \ 175 } while (0) 176 177 #else 178 #define cs_dbg(skt, lvl, fmt, arg...) do { } while (0) 179 #endif 180 181 #define cs_err(skt, fmt, arg...) \ 182 printk(KERN_ERR "cs: %s: " fmt, (skt)->dev.class_id , ## arg) 183 184 #endif /* _LINUX_CS_INTERNAL_H */ 185