1 /*        $NetBSD: pcmciavar.h,v 1.35 2011/07/26 22:24:36 dyoung Exp $          */
2 
3 /*
4  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *        This product includes software developed by Marc Horowitz.
17  * 4. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/types.h>
33 #include <sys/queue.h>
34 
35 #include <dev/pcmcia/pcmciachip.h>
36 
37 extern int          pcmcia_verbose;
38 
39 /*
40  * Contains information about mapped/allocated i/o spaces.
41  */
42 struct pcmcia_io_handle {
43           bus_space_tag_t iot;                    /* bus space tag (from chipset) */
44           bus_space_handle_t ioh;                 /* mapped space handle */
45           bus_addr_t      addr;                   /* resulting address in bus space */
46           bus_size_t      size;                   /* size of i/o space */
47           int             flags;                  /* misc. information */
48           void                *ihandle; /* opaque i/o handle */
49 };
50 
51 #define   PCMCIA_IO_ALLOCATED 0x01      /* i/o space was allocated */
52 
53 /*
54  * Contains information about allocated memory space.
55  */
56 struct pcmcia_mem_handle {
57           bus_space_tag_t memt;                   /* bus space tag (from chipset) */
58           bus_space_handle_t memh;      /* mapped space handle */
59           bus_addr_t      addr;                   /* resulting address in bus space */
60           bus_size_t      size;                   /* size of mem space */
61           pcmcia_mem_handle_t mhandle;  /* opaque memory handle */
62           bus_size_t      realsize;     /* how much we really allocated */
63 };
64 
65 /* pcmcia itself */
66 
67 #define PCMCIA_CFE_MWAIT_REQUIRED       0x0001
68 #define PCMCIA_CFE_RDYBSY_ACTIVE        0x0002
69 #define PCMCIA_CFE_WP_ACTIVE            0x0004
70 #define PCMCIA_CFE_BVD_ACTIVE           0x0008
71 #define PCMCIA_CFE_IO8                            0x0010
72 #define PCMCIA_CFE_IO16                           0x0020
73 #define PCMCIA_CFE_IRQSHARE             0x0040
74 #define PCMCIA_CFE_IRQPULSE             0x0080
75 #define PCMCIA_CFE_IRQLEVEL             0x0100
76 #define PCMCIA_CFE_POWERDOWN            0x0200
77 #define PCMCIA_CFE_READONLY             0x0400
78 #define PCMCIA_CFE_AUDIO                0x0800
79 
80 struct pcmcia_config_entry {
81           int                 number;
82           u_int32_t flags;
83           int                 iftype;
84           int                 num_iospace;
85 
86           /*
87            * The card will only decode this mask in any case, so we can
88            * do dynamic allocation with this in mind, in case the suggestions
89            * below are no good.
90            */
91           u_long              iomask;
92           struct {
93                     u_long    length;
94                     u_long    start;
95 
96                     struct    pcmcia_io_handle handle;
97                     int       window;
98           } iospace[4];                 /* XXX this could be as high as 16 */
99           u_int16_t irqmask;
100           int                 num_memspace;
101           struct {
102                     u_long    length;
103                     u_long    cardaddr;
104                     u_long    hostaddr;
105 
106                     struct    pcmcia_mem_handle handle;
107                     bus_size_t offset;
108                     int       window;
109 
110           } memspace[2];                /* XXX this could be as high as 8 */
111           int                 maxtwins;
112           SIMPLEQ_ENTRY(pcmcia_config_entry) cfe_list;
113 };
114 
115 
116 struct pcmcia_funce_disk {
117           int pfd_interface;
118 };
119 
120 struct pcmcia_funce_lan {
121           int pfl_nidlen;
122           u_int8_t pfl_nid[8];
123 };
124 
125 union pcmcia_funce {
126           struct pcmcia_funce_disk pfv_disk;
127           struct pcmcia_funce_lan pfv_lan;
128 };
129 
130 
131 struct pcmcia_function {
132           /* read off the card */
133           int                 number;
134           int                 function;
135           int                 last_config_index;
136           u_long              ccr_base;
137           u_long              ccr_mask;
138           SIMPLEQ_HEAD(, pcmcia_config_entry) cfe_head;
139           SIMPLEQ_ENTRY(pcmcia_function) pf_list;
140           /* run-time state */
141           struct pcmcia_softc *sc;
142           device_t child;
143           struct pcmcia_config_entry *cfe;
144           struct pcmcia_mem_handle pf_pcmh;
145 #define   pf_ccrt             pf_pcmh.memt
146 #define   pf_ccrh             pf_pcmh.memh
147 #define   pf_ccr_mhandle      pf_pcmh.mhandle
148 #define   pf_ccr_realsize     pf_pcmh.realsize
149           bus_size_t          pf_ccr_offset;
150           int                 pf_ccr_window;
151           bus_addr_t          pf_mfc_iobase;
152           bus_addr_t          pf_mfc_iomax;
153           void                *pf_ih;
154           int                 pf_flags;
155 
156           union pcmcia_funce pf_funce; /* CISTPL_FUNCE */
157 #define pf_funce_disk_interface pf_funce.pfv_disk.pfd_interface
158 #define pf_funce_lan_nid pf_funce.pfv_lan.pfl_nid
159 #define pf_funce_lan_nidlen pf_funce.pfv_lan.pfl_nidlen
160 };
161 
162 /* pf_flags */
163 #define   PFF_ENABLED         0x0001              /* function is enabled */
164 #define   PFF_DETACHED        0x0002              /* card is detached */
165 
166 SIMPLEQ_HEAD(pcmcia_function_head, pcmcia_function);
167 
168 struct pcmcia_card {
169           int                 cis1_major;
170           int                 cis1_minor;
171           /* XXX waste of space? */
172           char                cis1_info_buf[256];
173           char                *cis1_info[4];
174           /*
175            * Use int32_t for manufacturer and product so that they can
176            * hold the id value found in card CIS and special value that
177            * indicates no id was found.
178            */
179           int32_t             manufacturer;
180 #define   PCMCIA_VENDOR_INVALID         -1
181           int32_t             product;
182 #define   PCMCIA_PRODUCT_INVALID                  -1
183           u_int16_t error;
184 #define   PCMCIA_CIS_INVALID            { NULL, NULL, NULL, NULL }
185           struct pcmcia_function_head   pf_head;
186 };
187 
188 struct pcmcia_softc {
189           device_t  dev;
190 
191           /* this stuff is for the socket */
192           pcmcia_chipset_tag_t pct;
193           pcmcia_chipset_handle_t pch;
194 
195           /* this stuff is for the card */
196           struct pcmcia_card card;
197           void                *ih;
198           int                 sc_enabled_count;   /* how many functions are
199                                                                enabled */
200 };
201 
202 struct pcmcia_cis_quirk {
203           int32_t manufacturer;
204           int32_t product;
205           const char *cis1_info[4];
206           const struct pcmcia_function *pf;
207           const struct pcmcia_config_entry *cfe;
208 };
209 
210 struct pcmcia_attach_args {
211           int32_t manufacturer;
212           int32_t product;
213           struct pcmcia_card *card;
214           struct pcmcia_function *pf;
215 };
216 
217 struct pcmcia_tuple {
218           unsigned int        code;
219           unsigned int        length;
220           u_long              mult;
221           bus_size_t          ptr;
222           bus_space_tag_t     memt;
223           bus_space_handle_t memh;
224 };
225 
226 struct pcmcia_product {
227           u_int32_t pp_vendor;
228           u_int32_t pp_product;
229           const char          *pp_cisinfo[4];
230 };
231 
232 typedef int (*pcmcia_product_match_fn)(struct pcmcia_attach_args *,
233     const struct pcmcia_product *, int);
234 
235 const void *pcmcia_product_lookup(struct pcmcia_attach_args *, const void *,
236               size_t, size_t, pcmcia_product_match_fn);
237 
238 void      pcmcia_devinfo(struct pcmcia_card *, int, char *, size_t);
239 
240 void      pcmcia_read_cis(struct pcmcia_softc *);
241 void      pcmcia_check_cis_quirks(struct pcmcia_softc *);
242 void      pcmcia_print_cis(struct pcmcia_softc *);
243 int       pcmcia_scan_cis(device_t,
244               int (*) (struct pcmcia_tuple *, void *), void *);
245 
246 #define   pcmcia_cis_read_1(tuple, idx0)                                                  \
247           (bus_space_read_1((tuple)->memt, (tuple)->memh, (tuple)->mult*(idx0)))
248 
249 #define   pcmcia_tuple_read_1(tuple, idx1)                                      \
250           (pcmcia_cis_read_1((tuple), ((tuple)->ptr+(2+(idx1)))))
251 
252 #define   pcmcia_tuple_read_2(tuple, idx2)                                      \
253           (pcmcia_tuple_read_1((tuple), (idx2)) |                               \
254            (pcmcia_tuple_read_1((tuple), (idx2)+1)<<8))
255 
256 #define   pcmcia_tuple_read_3(tuple, idx3)                                      \
257           (pcmcia_tuple_read_1((tuple), (idx3)) |                               \
258            (pcmcia_tuple_read_1((tuple), (idx3)+1)<<8) |                        \
259            (pcmcia_tuple_read_1((tuple), (idx3)+2)<<16))
260 
261 #define   pcmcia_tuple_read_4(tuple, idx4)                                      \
262           (pcmcia_tuple_read_1((tuple), (idx4)) |                               \
263            (pcmcia_tuple_read_1((tuple), (idx4)+1)<<8) |                        \
264            (pcmcia_tuple_read_1((tuple), (idx4)+2)<<16) |                       \
265            (pcmcia_tuple_read_1((tuple), (idx4)+3)<<24))
266 
267 #define   pcmcia_tuple_read_n(tuple, n, idxn)                                   \
268           (((n)==1)?pcmcia_tuple_read_1((tuple), (idxn)) :            \
269            (((n)==2)?pcmcia_tuple_read_2((tuple), (idxn)) :           \
270             (((n)==3)?pcmcia_tuple_read_3((tuple), (idxn)) :                    \
271              /* n == 4 */ pcmcia_tuple_read_4((tuple), (idxn)))))
272 
273 #define   PCMCIA_SPACE_MEMORY 1
274 #define   PCMCIA_SPACE_IO               2
275 
276 int       pcmcia_ccr_read(struct pcmcia_function *, int);
277 void      pcmcia_ccr_write(struct pcmcia_function *, int, int);
278 
279 #define   pcmcia_mfc(sc)      (! SIMPLEQ_EMPTY(&(sc)->card.pf_head) &&          \
280                      SIMPLEQ_NEXT(SIMPLEQ_FIRST(&(sc)->card.pf_head), pf_list))
281 
282 void      pcmcia_socket_enable(device_t);
283 void      pcmcia_socket_disable(device_t);
284 void      pcmcia_socket_settype(device_t, int);
285 
286 int       pcmcia_config_alloc(struct pcmcia_function *,
287               struct pcmcia_config_entry *);
288 void      pcmcia_config_free(struct pcmcia_function *);
289 int       pcmcia_config_map(struct pcmcia_function *);
290 void      pcmcia_config_unmap(struct pcmcia_function *);
291 
292 
293 int       pcmcia_function_configure(struct pcmcia_function *,
294               int (*validator)(struct pcmcia_config_entry *));
295 void      pcmcia_function_unconfigure(struct pcmcia_function *);
296 void      pcmcia_function_init(struct pcmcia_function *,
297               struct pcmcia_config_entry *);
298 int       pcmcia_function_enable(struct pcmcia_function *);
299 void      pcmcia_function_disable(struct pcmcia_function *);
300 
301 #define   pcmcia_io_alloc(pf, start, size, align, pciop)                        \
302           (pcmcia_chip_io_alloc((pf)->sc->pct, pf->sc->pch, (start),  \
303            (size), (align), (pciop)))
304 
305 #define   pcmcia_io_free(pf, pciohp)                                            \
306           (pcmcia_chip_io_free((pf)->sc->pct, (pf)->sc->pch, (pciohp)))
307 
308 int       pcmcia_io_map(struct pcmcia_function *, int,
309               struct pcmcia_io_handle *, int *);
310 void      pcmcia_io_unmap(struct pcmcia_function *, int);
311 
312 void      pcmcia_free_pf(struct pcmcia_function_head *);
313 
314 #define pcmcia_mem_alloc(pf, size, pcmhp)                                       \
315           (pcmcia_chip_mem_alloc((pf)->sc->pct, (pf)->sc->pch, (size), (pcmhp)))
316 
317 #define pcmcia_mem_free(pf, pcmhp)                                              \
318           (pcmcia_chip_mem_free((pf)->sc->pct, (pf)->sc->pch, (pcmhp)))
319 
320 #define pcmcia_mem_map(pf, kind, card_addr, size, pcmhp, offsetp, windowp) \
321           (pcmcia_chip_mem_map((pf)->sc->pct, (pf)->sc->pch, (kind),  \
322            (card_addr), (size), (pcmhp), (offsetp), (windowp)))
323 
324 #define   pcmcia_mem_unmap(pf, window)                                          \
325           (pcmcia_chip_mem_unmap((pf)->sc->pct, (pf)->sc->pch, (window)))
326 
327 void      *pcmcia_intr_establish(struct pcmcia_function *, int,
328               int (*) (void *), void *);
329 void      pcmcia_intr_disestablish(struct pcmcia_function *, void *);
330