1 /* 2 * ss.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_SS_H 16 #define _LINUX_SS_H 17 18 #include <linux/device.h> 19 #include <linux/sched.h> /* task_struct, completion */ 20 #include <linux/mutex.h> 21 22 #include <pcmcia/cs_types.h> 23 #include <pcmcia/cs.h> 24 #ifdef CONFIG_CARDBUS 25 #include <linux/pci.h> 26 #endif 27 28 /* Definitions for card status flags for GetStatus */ 29 #define SS_WRPROT 0x0001 30 #define SS_CARDLOCK 0x0002 31 #define SS_EJECTION 0x0004 32 #define SS_INSERTION 0x0008 33 #define SS_BATDEAD 0x0010 34 #define SS_BATWARN 0x0020 35 #define SS_READY 0x0040 36 #define SS_DETECT 0x0080 37 #define SS_POWERON 0x0100 38 #define SS_GPI 0x0200 39 #define SS_STSCHG 0x0400 40 #define SS_CARDBUS 0x0800 41 #define SS_3VCARD 0x1000 42 #define SS_XVCARD 0x2000 43 #define SS_PENDING 0x4000 44 #define SS_ZVCARD 0x8000 45 46 /* InquireSocket capabilities */ 47 #define SS_CAP_PAGE_REGS 0x0001 48 #define SS_CAP_VIRTUAL_BUS 0x0002 49 #define SS_CAP_MEM_ALIGN 0x0004 50 #define SS_CAP_STATIC_MAP 0x0008 51 #define SS_CAP_PCCARD 0x4000 52 #define SS_CAP_CARDBUS 0x8000 53 54 /* for GetSocket, SetSocket */ 55 typedef struct socket_state_t { 56 u_int flags; 57 u_int csc_mask; 58 u_char Vcc, Vpp; 59 u_char io_irq; 60 } socket_state_t; 61 62 extern socket_state_t dead_socket; 63 64 /* Socket configuration flags */ 65 #define SS_PWR_AUTO 0x0010 66 #define SS_IOCARD 0x0020 67 #define SS_RESET 0x0040 68 #define SS_DMA_MODE 0x0080 69 #define SS_SPKR_ENA 0x0100 70 #define SS_OUTPUT_ENA 0x0200 71 72 /* Flags for I/O port and memory windows */ 73 #define MAP_ACTIVE 0x01 74 #define MAP_16BIT 0x02 75 #define MAP_AUTOSZ 0x04 76 #define MAP_0WS 0x08 77 #define MAP_WRPROT 0x10 78 #define MAP_ATTRIB 0x20 79 #define MAP_USE_WAIT 0x40 80 #define MAP_PREFETCH 0x80 81 82 /* Use this just for bridge windows */ 83 #define MAP_IOSPACE 0x20 84 85 /* power hook operations */ 86 #define HOOK_POWER_PRE 0x01 87 #define HOOK_POWER_POST 0x02 88 89 typedef struct pccard_io_map { 90 u_char map; 91 u_char flags; 92 u_short speed; 93 phys_addr_t start, stop; 94 } pccard_io_map; 95 96 typedef struct pccard_mem_map { 97 u_char map; 98 u_char flags; 99 u_short speed; 100 phys_addr_t static_start; 101 u_int card_start; 102 struct resource *res; 103 } pccard_mem_map; 104 105 typedef struct io_window_t { 106 u_int InUse, Config; 107 struct resource *res; 108 } io_window_t; 109 110 /* Maximum number of IO windows per socket */ 111 #define MAX_IO_WIN 2 112 113 /* Maximum number of memory windows per socket */ 114 #define MAX_WIN 4 115 116 117 /* 118 * Socket operations. 119 */ 120 struct pcmcia_socket; 121 struct pccard_resource_ops; 122 struct config_t; 123 struct pcmcia_callback; 124 struct user_info_t; 125 126 struct pccard_operations { 127 int (*init)(struct pcmcia_socket *s); 128 int (*suspend)(struct pcmcia_socket *s); 129 int (*get_status)(struct pcmcia_socket *s, u_int *value); 130 int (*set_socket)(struct pcmcia_socket *s, socket_state_t *state); 131 int (*set_io_map)(struct pcmcia_socket *s, struct pccard_io_map *io); 132 int (*set_mem_map)(struct pcmcia_socket *s, struct pccard_mem_map *mem); 133 }; 134 135 struct pcmcia_socket { 136 struct module *owner; 137 socket_state_t socket; 138 u_int state; 139 u_int suspended_state; /* state before suspend */ 140 u_short functions; 141 u_short lock_count; 142 pccard_mem_map cis_mem; 143 void __iomem *cis_virt; 144 io_window_t io[MAX_IO_WIN]; 145 pccard_mem_map win[MAX_WIN]; 146 struct list_head cis_cache; 147 size_t fake_cis_len; 148 u8 *fake_cis; 149 150 struct list_head socket_list; 151 struct completion socket_released; 152 153 /* deprecated */ 154 unsigned int sock; /* socket number */ 155 156 157 /* socket capabilities */ 158 u_int features; 159 u_int irq_mask; 160 u_int map_size; 161 u_int io_offset; 162 u_int pci_irq; 163 struct pci_dev *cb_dev; 164 165 166 /* socket setup is done so resources should be able to be allocated. 167 * Only if set to 1, calls to find_{io,mem}_region are handled, and 168 * insertio events are actually managed by the PCMCIA layer.*/ 169 u8 resource_setup_done:1; 170 171 /* It's old if resource setup is done using adjust_resource_info() */ 172 u8 resource_setup_old:1; 173 u8 resource_setup_new:1; 174 175 u8 reserved:5; 176 177 /* socket operations */ 178 struct pccard_operations *ops; 179 struct pccard_resource_ops *resource_ops; 180 void *resource_data; 181 182 /* Zoom video behaviour is so chip specific its not worth adding 183 this to _ops */ 184 void (*zoom_video)(struct pcmcia_socket *, 185 int); 186 187 /* so is power hook */ 188 int (*power_hook)(struct pcmcia_socket *sock, int operation); 189 190 /* allows tuning the CB bridge before loading driver for the CB card */ 191 #ifdef CONFIG_CARDBUS 192 void (*tune_bridge)(struct pcmcia_socket *sock, struct pci_bus *bus); 193 #endif 194 195 /* state thread */ 196 struct task_struct *thread; 197 struct completion thread_done; 198 unsigned int thread_events; 199 unsigned int sysfs_events; 200 201 /* For the non-trivial interaction between these locks, 202 * see Documentation/pcmcia/locking.txt */ 203 struct mutex skt_mutex; 204 struct mutex ops_mutex; 205 206 /* protects thread_events and sysfs_events */ 207 spinlock_t thread_lock; 208 209 /* pcmcia (16-bit) */ 210 struct pcmcia_callback *callback; 211 212 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) 213 /* The following elements refer to 16-bit PCMCIA devices inserted 214 * into the socket */ 215 struct list_head devices_list; 216 217 /* the number of devices, used only internally and subject to 218 * incorrectness and change */ 219 u8 device_count; 220 221 /* 16-bit state: */ 222 struct { 223 /* "master" ioctl is used */ 224 u8 busy:1; 225 /* the PCMCIA card consists of two pseudo devices */ 226 u8 has_pfc:1; 227 228 u8 reserved:6; 229 } pcmcia_state; 230 231 /* non-zero if PCMCIA card is present */ 232 atomic_t present; 233 234 /* IRQ to be used by PCMCIA devices. May not be IRQ 0. */ 235 unsigned int pcmcia_irq; 236 237 #ifdef CONFIG_PCMCIA_IOCTL 238 struct user_info_t *user; 239 wait_queue_head_t queue; 240 #endif /* CONFIG_PCMCIA_IOCTL */ 241 #endif /* CONFIG_PCMCIA */ 242 243 /* socket device */ 244 struct device dev; 245 /* data internal to the socket driver */ 246 void *driver_data; 247 /* status of the card during resume from a system sleep state */ 248 int resume_status; 249 }; 250 251 252 /* socket drivers must define the resource operations type they use. There 253 * are three options: 254 * - pccard_static_ops iomem and ioport areas are assigned statically 255 * - pccard_iodyn_ops iomem areas is assigned statically, ioport 256 * areas dynamically 257 * If this option is selected, use 258 * "select PCCARD_IODYN" in Kconfig. 259 * - pccard_nonstatic_ops iomem and ioport areas are assigned dynamically. 260 * If this option is selected, use 261 * "select PCCARD_NONSTATIC" in Kconfig. 262 * 263 */ 264 extern struct pccard_resource_ops pccard_static_ops; 265 #if defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE) 266 extern struct pccard_resource_ops pccard_iodyn_ops; 267 extern struct pccard_resource_ops pccard_nonstatic_ops; 268 #else 269 /* If PCMCIA is not used, but only CARDBUS, these functions are not used 270 * at all. Therefore, do not use the large (240K!) rsrc_nonstatic module 271 */ 272 #define pccard_iodyn_ops pccard_static_ops 273 #define pccard_nonstatic_ops pccard_static_ops 274 #endif 275 276 277 /* socket drivers use this callback in their IRQ handler */ 278 extern void pcmcia_parse_events(struct pcmcia_socket *socket, 279 unsigned int events); 280 281 /* to register and unregister a socket */ 282 extern int pcmcia_register_socket(struct pcmcia_socket *socket); 283 extern void pcmcia_unregister_socket(struct pcmcia_socket *socket); 284 285 286 #endif /* _LINUX_SS_H */ 287