2 * ds.h -- 16-bit PCMCIA core support
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.
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.
12 * (C) 1999 David A. Hinds
13 * (C) 2003 - 2008 Dominik Brodowski
20 #include <linux/mod_devicetable.h>
23 #include <pcmcia/device_id.h>
26 #include <linux/device.h>
27 #include <pcmcia/ss.h>
28 #include <asm/atomic.h>
31 * PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
39 typedef struct resource *window_handle_t;
41 /* dynamic device IDs for PCMCIA device drivers. See
42 * Documentation/pcmcia/driver.txt for details.
44 struct pcmcia_dynids {
46 struct list_head list;
49 struct pcmcia_driver {
50 int (*probe) (struct pcmcia_device *dev);
51 void (*remove) (struct pcmcia_device *dev);
53 int (*suspend) (struct pcmcia_device *dev);
54 int (*resume) (struct pcmcia_device *dev);
57 struct pcmcia_device_id *id_table;
58 struct device_driver drv;
59 struct pcmcia_dynids dynids;
62 /* driver registration */
63 int pcmcia_register_driver(struct pcmcia_driver *driver);
64 void pcmcia_unregister_driver(struct pcmcia_driver *driver);
66 /* for struct resource * array embedded in struct pcmcia_device */
77 struct pcmcia_device {
78 /* the socket and the device_no [for multifunction devices]
79 uniquely define a pcmcia_device */
80 struct pcmcia_socket *socket;
86 /* the hardware "function" device; certain subdevices can
87 * share one hardware "function" device. */
89 struct config_t *function_config;
91 struct list_head socket_device_list;
93 /* deprecated, will be cleaned up soon */
99 struct resource *resource[PCMCIA_NUM_RESOURCES];
101 unsigned int io_lines; /* number of I/O lines */
103 /* Is the device suspended? */
106 /* Flags whether io, irq, win configurations were
107 * requested, and whether the configuration is "locked" */
113 /* Flag whether a "fuzzy" func_id based match is
115 u16 allow_func_id_match:1;
117 /* information about this device */
133 /* data private to drivers */
138 #define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)
139 #define to_pcmcia_drv(n) container_of(n, struct pcmcia_driver, drv)
145 * Please use the following functions to access CIS tuples:
146 * - pcmcia_get_tuple()
147 * - pcmcia_loop_tuple()
148 * - pcmcia_get_mac_from_cis()
150 * To parse a tuple_t, pcmcia_parse_tuple() exists. Its interface
151 * might change in future.
154 /* get the very first CIS entry of type @code. Note that buf is pointer
155 * to u8 *buf; and that you need to kfree(buf) afterwards. */
156 size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
159 /* loop over CIS entries */
160 int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
161 int (*loop_tuple) (struct pcmcia_device *p_dev,
166 /* get the MAC address from CISTPL_FUNCE */
167 int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev,
168 struct net_device *dev);
171 /* parse a tuple_t */
172 int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse);
174 /* loop CIS entries for valid configuration */
175 int pcmcia_loop_config(struct pcmcia_device *p_dev,
176 int (*conf_check) (struct pcmcia_device *p_dev,
177 cistpl_cftable_entry_t *cf,
178 cistpl_cftable_entry_t *dflt,
183 /* is the device still there? */
184 struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev);
186 /* low-level interface reset */
187 int pcmcia_reset_card(struct pcmcia_socket *skt);
190 int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
191 int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);
193 /* device configuration */
194 int pcmcia_request_io(struct pcmcia_device *p_dev);
197 __pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
198 irq_handler_t handler);
199 static inline __must_check __deprecated int
200 pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
201 irq_handler_t handler)
203 return __pcmcia_request_exclusive_irq(p_dev, handler);
206 int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
207 irq_handler_t handler);
209 int pcmcia_request_configuration(struct pcmcia_device *p_dev,
212 int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req,
213 window_handle_t *wh);
214 int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t win);
215 int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t win,
216 unsigned int offset);
218 int pcmcia_modify_configuration(struct pcmcia_device *p_dev, modconf_t *mod);
219 void pcmcia_disable_device(struct pcmcia_device *p_dev);
222 #define IO_DATA_PATH_WIDTH 0x18
223 #define IO_DATA_PATH_WIDTH_8 0x00
224 #define IO_DATA_PATH_WIDTH_16 0x08
225 #define IO_DATA_PATH_WIDTH_AUTO 0x10
227 /* convert flag found in cfgtable to data path width parameter */
228 static inline int pcmcia_io_cfg_data_width(unsigned int flags)
230 if (!(flags & CISTPL_IO_8BIT))
231 return IO_DATA_PATH_WIDTH_16;
232 if (!(flags & CISTPL_IO_16BIT))
233 return IO_DATA_PATH_WIDTH_8;
234 return IO_DATA_PATH_WIDTH_AUTO;
237 #endif /* __KERNEL__ */
239 #endif /* _LINUX_DS_H */