1/*
2 * ds.h -- 16-bit PCMCIA core support
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#ifndef _LINUX_DS_H
17#define _LINUX_DS_H
18
19#ifdef __KERNEL__
20#include <linux/mod_devicetable.h>
21#endif
22
23#include <pcmcia/device_id.h>
24
25#ifdef __KERNEL__
26#include <linux/device.h>
27#include <linux/interrupt.h>
28#include <pcmcia/ss.h>
29#include <linux/atomic.h>
30
31
32/*
33 * PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus
34 * a.k.a. PCI drivers
35 */
36struct pcmcia_socket;
37struct pcmcia_device;
38struct config_t;
39struct net_device;
40
41/* dynamic device IDs for PCMCIA device drivers. See
42 * Documentation/pcmcia/driver.txt for details.
43*/
44struct pcmcia_dynids {
45 struct mutex lock;
46 struct list_head list;
47};
48
49struct pcmcia_driver {
50 const char *name;
51
52 int (*probe) (struct pcmcia_device *dev);
53 void (*remove) (struct pcmcia_device *dev);
54
55 int (*suspend) (struct pcmcia_device *dev);
56 int (*resume) (struct pcmcia_device *dev);
57
58 struct module *owner;
59 const struct pcmcia_device_id *id_table;
60 struct device_driver drv;
61 struct pcmcia_dynids dynids;
62};
63
64/* driver registration */
65int pcmcia_register_driver(struct pcmcia_driver *driver);
66void pcmcia_unregister_driver(struct pcmcia_driver *driver);
67
68/**
69 * module_pcmcia_driver() - Helper macro for registering a pcmcia driver
70 * @__pcmcia_driver: pcmcia_driver struct
71 *
72 * Helper macro for pcmcia drivers which do not do anything special in module
73 * init/exit. This eliminates a lot of boilerplate. Each module may only use
74 * this macro once, and calling it replaces module_init() and module_exit().
75 */
76#define module_pcmcia_driver(__pcmcia_driver) \
77 module_driver(__pcmcia_driver, pcmcia_register_driver, \
78 pcmcia_unregister_driver)
79
80/* for struct resource * array embedded in struct pcmcia_device */
81enum {
82 PCMCIA_IOPORT_0,
83 PCMCIA_IOPORT_1,
84 PCMCIA_IOMEM_0,
85 PCMCIA_IOMEM_1,
86 PCMCIA_IOMEM_2,
87 PCMCIA_IOMEM_3,
88 PCMCIA_NUM_RESOURCES,
89};
90
91struct pcmcia_device {
92 /* the socket and the device_no [for multifunction devices]
93 uniquely define a pcmcia_device */
94 struct pcmcia_socket *socket;
95
96 char *devname;
97
98 u8 device_no;
99
100 /* the hardware "function" device; certain subdevices can
101 * share one hardware "function" device. */
102 u8 func;
103 struct config_t *function_config;
104
105 struct list_head socket_device_list;
106
107 /* device setup */
108 unsigned int irq;
109 struct resource *resource[PCMCIA_NUM_RESOURCES];
110 resource_size_t card_addr; /* for the 1st IOMEM resource */
111 unsigned int vpp;
112
113 unsigned int config_flags; /* CONF_ENABLE_ flags below */
114 unsigned int config_base;
115 unsigned int config_index;
116 unsigned int config_regs; /* PRESENT_ flags below */
117 unsigned int io_lines; /* number of I/O lines */
118
119 /* Is the device suspended? */
120 u16 suspended:1;
121
122 /* Flags whether io, irq, win configurations were
123 * requested, and whether the configuration is "locked" */
124 u16 _irq:1;
125 u16 _io:1;
126 u16 _win:4;
127 u16 _locked:1;
128
129 /* Flag whether a "fuzzy" func_id based match is
130 * allowed. */
131 u16 allow_func_id_match:1;
132
133 /* information about this device */
134 u16 has_manf_id:1;
135 u16 has_card_id:1;
136 u16 has_func_id:1;
137
138 u16 reserved:4;
139
140 u8 func_id;
141 u16 manf_id;
142 u16 card_id;
143
144 char *prod_id[4];
145
146 u64 dma_mask;
147 struct device dev;
148
149 /* data private to drivers */
150 void *priv;
151 unsigned int open;
152};
153
154#define to_pcmcia_dev(n) container_of(n, struct pcmcia_device, dev)
155#define to_pcmcia_drv(n) container_of(n, struct pcmcia_driver, drv)
156
157
158/*
159 * CIS access.
160 *
161 * Please use the following functions to access CIS tuples:
162 * - pcmcia_get_tuple()
163 * - pcmcia_loop_tuple()
164 * - pcmcia_get_mac_from_cis()
165 *
166 * To parse a tuple_t, pcmcia_parse_tuple() exists. Its interface
167 * might change in future.
168 */
169
170/* get the very first CIS entry of type @code. Note that buf is pointer
171 * to u8 *buf; and that you need to kfree(buf) afterwards. */
172size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
173 u8 **buf);
174
175/* loop over CIS entries */
176int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
177 int (*loop_tuple) (struct pcmcia_device *p_dev,
178 tuple_t *tuple,
179 void *priv_data),
180 void *priv_data);
181
182/* get the MAC address from CISTPL_FUNCE */
183int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev,
184 struct net_device *dev);
185
186
187/* parse a tuple_t */
188int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse);
189
190/* loop CIS entries for valid configuration */
191int pcmcia_loop_config(struct pcmcia_device *p_dev,
192 int (*conf_check) (struct pcmcia_device *p_dev,
193 void *priv_data),
194 void *priv_data);
195
196/* is the device still there? */
197struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *p_dev);
198
199/* low-level interface reset */
200int pcmcia_reset_card(struct pcmcia_socket *skt);
201
202/* CIS config */
203int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val);
204int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val);
205
206/* device configuration */
207int pcmcia_request_io(struct pcmcia_device *p_dev);
208
209int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
210 irq_handler_t handler);
211
212int pcmcia_enable_device(struct pcmcia_device *p_dev);
213
214int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
215 unsigned int speed);
216int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res);
217int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
218 unsigned int offset);
219
220int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp);
221int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev);
222
223void pcmcia_disable_device(struct pcmcia_device *p_dev);
224
225/* IO ports */
226#define IO_DATA_PATH_WIDTH 0x18
227#define IO_DATA_PATH_WIDTH_8 0x00
228#define IO_DATA_PATH_WIDTH_16 0x08
229#define IO_DATA_PATH_WIDTH_AUTO 0x10
230
231/* IO memory */
232#define WIN_MEMORY_TYPE_CM 0x00 /* default */
233#define WIN_MEMORY_TYPE_AM 0x20 /* MAP_ATTRIB */
234#define WIN_DATA_WIDTH_8 0x00 /* default */
235#define WIN_DATA_WIDTH_16 0x02 /* MAP_16BIT */
236#define WIN_ENABLE 0x01 /* MAP_ACTIVE */
237#define WIN_USE_WAIT 0x40 /* MAP_USE_WAIT */
238
239#define WIN_FLAGS_MAP 0x63 /* MAP_ATTRIB | MAP_16BIT | MAP_ACTIVE |
240 MAP_USE_WAIT */
241#define WIN_FLAGS_REQ 0x1c /* mapping to socket->win[i]:
242 0x04 -> 0
243 0x08 -> 1
244 0x0c -> 2
245 0x10 -> 3 */
246
247/* config_reg{ister}s present for this PCMCIA device */
248#define PRESENT_OPTION 0x001
249#define PRESENT_STATUS 0x002
250#define PRESENT_PIN_REPLACE 0x004
251#define PRESENT_COPY 0x008
252#define PRESENT_EXT_STATUS 0x010
253#define PRESENT_IOBASE_0 0x020
254#define PRESENT_IOBASE_1 0x040
255#define PRESENT_IOBASE_2 0x080
256#define PRESENT_IOBASE_3 0x100
257#define PRESENT_IOSIZE 0x200
258
259/* flags to be passed to pcmcia_enable_device() */
260#define CONF_ENABLE_IRQ 0x0001
261#define CONF_ENABLE_SPKR 0x0002
262#define CONF_ENABLE_PULSE_IRQ 0x0004
263#define CONF_ENABLE_ESR 0x0008
264#define CONF_ENABLE_IOCARD 0x0010 /* auto-enabled if IO resources or IRQ
265 * (CONF_ENABLE_IRQ) in use */
266#define CONF_ENABLE_ZVCARD 0x0020
267
268/* flags used by pcmcia_loop_config() autoconfiguration */
269#define CONF_AUTO_CHECK_VCC 0x0100 /* check for matching Vcc? */
270#define CONF_AUTO_SET_VPP 0x0200 /* set Vpp? */
271#define CONF_AUTO_AUDIO 0x0400 /* enable audio line? */
272#define CONF_AUTO_SET_IO 0x0800 /* set ->resource[0,1] */
273#define CONF_AUTO_SET_IOMEM 0x1000 /* set ->resource[2] */
274
275#endif /* __KERNEL__ */
276
277#endif /* _LINUX_DS_H */
278