1 /*        $NetBSD: cardbusvar.h,v 1.56 2012/02/18 00:36:57 matt Exp $ */
2 
3 /*
4  * Copyright (c) 1998, 1999 and 2000
5  *       HAYAKAWA Koichi.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef _DEV_CARDBUS_CARDBUSVAR_H_
30 #define _DEV_CARDBUS_CARDBUSVAR_H_
31 
32 #include <dev/cardbus/cardbusreg.h>
33 #include <dev/cardbus/rbus.h>
34 
35 typedef struct cardbus_chipset_tag *cardbus_chipset_tag_t;
36 
37 /*
38  * struct cardbus_functions contains the pointers for basic cardbus
39  * functions.  Those functions must be provided by cardbus bridge.
40  * The child devices can use those functions.  The contained functions
41  * are: cardbus_space_alloc, cardbus_space_free,
42  * cardbus_intr_establish, cardbus_intr_disestablish, cardbus_ctrl,
43  * cardbus_power, cardbus_make_tag, and cardbus_conf_write.
44  *
45  *        int (*cardbus_space_alloc)(cardbus_chipset_tag_t ct, rbus_tag_t rb,
46  *            bus_addr_t addr, bus_size_t size,
47  *            bus_addr_t mask, bus_size_t align,
48  *            int flags, bus_addr_t *addrp,
49  *            bus_space_handle_t *bshp);
50  *
51  *        int (*cardbus_space_free)(cardbus_chipset_tag_t ct, rbus_tag_t rb,
52  *            bus_space_handle_t, bus_size_t);
53  *
54  * cardbus_space_alloc and cardbus_space_free allocates and
55  * disallocate bus space for the requesters.
56  *
57  *        void *(*cardbus_intr_establish)(cardbus_chipset_tag_t ct, int irq,
58  *             int level, int (*ih)(void *), void *sc);
59  *
60  *        void (*cardbus_intr_disestablish)(cardbus_chipset_tag_t ct, void *ih);
61  *        int (*cardbus_ctrl)(cardbus_chipset_tag_t ct, int command);
62  *        int (*cardbus_power)(cardbus_chipset_tag_t ct, int voltage);
63  *
64  *        pcitag_t (*cardbus_make_tag)(cardbus_chipset_tag_t ct,
65  *            int busno, int functionno);
66  *        pcireg_t (*cardbus_conf_read)(cardbus_chipset_tag_t ct,
67  *            pcitag_t tag, int offs);
68  *        void (*cardbus_conf_write)(cardbus_chipset_tag_t ct,
69  *            pcitag_t tag, int offs, pcireg_t val);
70  */
71 typedef const struct cardbus_functions {
72           int (*cardbus_space_alloc)(cardbus_chipset_tag_t, rbus_tag_t,
73               bus_addr_t, bus_size_t, bus_addr_t, bus_size_t,
74               int, bus_addr_t *, bus_space_handle_t *);
75           int (*cardbus_space_free)(cardbus_chipset_tag_t, rbus_tag_t,
76               bus_space_handle_t, bus_size_t);
77           void *(*cardbus_intr_establish)(cardbus_chipset_tag_t,
78               int, int (*)(void *), void *);
79           void (*cardbus_intr_disestablish)(cardbus_chipset_tag_t, void *);
80           int (*cardbus_ctrl)(cardbus_chipset_tag_t, int);
81           int (*cardbus_power)(cardbus_chipset_tag_t, int);
82 
83           pcitag_t (*cardbus_make_tag)(cardbus_chipset_tag_t, int, int);
84           pcireg_t (*cardbus_conf_read)(cardbus_chipset_tag_t,
85               pcitag_t, int);
86           void (*cardbus_conf_write)(cardbus_chipset_tag_t, pcitag_t,
87               int, pcireg_t);
88 } cardbus_function_t, *cardbus_function_tag_t;
89 
90 /*
91  * struct cbslot_attach_args is the attach argument for Cardbus cardslot.
92  */
93 struct cbslot_attach_args {
94           bus_space_tag_t cba_iot;      /* cardbus i/o space tag */
95           bus_space_tag_t cba_memt;     /* cardbus mem space tag */
96           bus_dma_tag_t cba_dmat;                 /* DMA tag */
97 
98           int cba_bus;                            /* cardbus bus number */
99 
100           cardbus_chipset_tag_t cba_cc; /* cardbus chipset */
101           cardbus_function_tag_t cba_cf; /* cardbus functions */
102 
103           rbus_tag_t cba_rbus_iot;      /* CardBus i/o rbus tag */
104           rbus_tag_t cba_rbus_memt;     /* CardBus mem rbus tag */
105 
106           int cba_cacheline;            /* cache line size */
107           int cba_max_lattimer;                   /* No card's latency timer may
108                                                    * exceed this.  On a PCI-Cardbus
109                                                    * bridge, I let the latency timer on
110                                                    * the primary bus (PCI bus) set
111                                                    * the maximum.  That is kind of an
112                                                    * arbitrary choice.  A more sensible
113                                                    * choice may be either the
114                                                    * latency timer on the primary bus,
115                                                    * or the bridge's buffer size,
116                                                    * whichever is larger.
117                                                    */
118 };
119 
120 
121 struct cardbus_devfunc;
122 
123 /*
124  * struct cardbus_softc is the softc for cardbus card.
125  */
126 struct cardbus_softc {
127           device_t sc_dev;              /* fundamental device structure */
128 
129           int sc_bus;                             /* cardbus bus number */
130 
131           bus_space_tag_t sc_iot;                 /* CardBus I/O space tag */
132           bus_space_tag_t sc_memt;      /* CardBus MEM space tag */
133           bus_dma_tag_t sc_dmat;                  /* DMA tag */
134 
135           cardbus_chipset_tag_t sc_cc;  /* CardBus chipset */
136           cardbus_function_tag_t sc_cf; /* CardBus function */
137 
138           rbus_tag_t sc_rbus_iot;                 /* CardBus i/o rbus tag */
139           rbus_tag_t sc_rbus_memt;      /* CardBus mem rbus tag */
140 
141           int sc_cacheline;             /* cache line size */
142           int sc_max_lattimer;                    /* No card's latency timer
143                                                    * may exceed this.  On a PCI-Cardbus
144                                                    * bridge, the latency timer on
145                                                    * the primary bus (PCI bus) sets
146                                                    * the maximum.
147                                                    */
148           int sc_poweron_func;
149   struct cardbus_devfunc *sc_funcs[8];  /* list of cardbus device functions */
150 };
151 
152 struct cardbus_conf_state {
153           pcireg_t reg[16];
154 };
155 
156 /*
157  * struct cardbus_devfunc:
158  *
159  *   This is the data deposit for each function of a CardBus device.
160  *   This structure is used for memory or i/o space allocation and
161  *   disallocation.
162  */
163 typedef struct cardbus_devfunc {
164           cardbus_chipset_tag_t ct_cc;
165           cardbus_function_tag_t ct_cf;
166           struct cardbus_softc *ct_sc;  /* pointer to the parent */
167           int ct_bus;                             /* bus number */
168           int ct_func;                            /* function number */
169 
170           pcireg_t ct_bhlc;             /* Latency timer and cache line size */
171           /* u_int32_t ct_cisreg; */    /* CIS reg: is it needed??? */
172 
173           device_t ct_device; /* pointer to the device */
174 
175           /* some data structure needed for tuple??? */
176 } *cardbus_devfunc_t;
177 
178 
179 /* XXX various things extracted from CIS */
180 struct cardbus_cis_info {
181           int32_t             manufacturer;
182           int32_t             product;
183           char                cis1_info_buf[256];
184           char*               cis1_info[4];
185           struct cb_bar_info {
186                     unsigned int flags;
187                     unsigned int size;
188           } bar[7];
189           unsigned int        funcid;
190           union {
191                     struct {
192                               int uart_type;
193                               int uart_present;
194                     } serial;
195                     struct {
196                               char netid[6];
197                               char netid_present;
198                               char __filler;
199                     } network;
200           } funce;
201 };
202 
203 struct cardbus_attach_args {
204           cardbus_devfunc_t ca_ct;
205 
206           bus_space_tag_t ca_iot;                 /* CardBus I/O space tag */
207           bus_space_tag_t ca_memt;      /* CardBus MEM space tag */
208           bus_dma_tag_t ca_dmat;                  /* DMA tag */
209 
210           u_int ca_bus;
211           u_int ca_function;
212           pcitag_t ca_tag;
213           pcireg_t ca_id;
214           pcireg_t ca_class;
215 
216           rbus_tag_t ca_rbus_iot;                 /* CardBus i/o rbus tag */
217           rbus_tag_t ca_rbus_memt;      /* CardBus mem rbus tag */
218 
219           struct cardbus_cis_info ca_cis;
220 };
221 
222 
223 #define CARDBUS_ENABLE  1     /* enable the channel */
224 #define CARDBUS_DISABLE 2     /* disable the channel */
225 #define CARDBUS_RESET   4
226 #define CARDBUS_CD      7
227 #  define CARDBUS_NOCARD 0
228 #  define CARDBUS_5V_CARD 0x01          /* XXX: It must not exist */
229 #  define CARDBUS_3V_CARD 0x02
230 #  define CARDBUS_XV_CARD 0x04
231 #  define CARDBUS_YV_CARD 0x08
232 #define CARDBUS_IO_ENABLE    100
233 #define CARDBUS_IO_DISABLE   101
234 #define CARDBUS_MEM_ENABLE   102
235 #define CARDBUS_MEM_DISABLE  103
236 #define CARDBUS_BM_ENABLE    104 /* bus master */
237 #define CARDBUS_BM_DISABLE   105
238 
239 #define CARDBUS_VCC_UC  0x0000
240 #define CARDBUS_VCC_3V  0x0001
241 #define CARDBUS_VCC_XV  0x0002
242 #define CARDBUS_VCC_YV  0x0003
243 #define CARDBUS_VCC_0V  0x0004
244 #define CARDBUS_VCC_5V  0x0005          /* ??? */
245 #define CARDBUS_VCCMASK 0x000f
246 #define CARDBUS_VPP_UC  0x0000
247 #define CARDBUS_VPP_VCC 0x0010
248 #define CARDBUS_VPP_12V 0x0030
249 #define CARDBUS_VPP_0V  0x0040
250 #define CARDBUS_VPPMASK 0x00f0
251 
252 
253 int cardbus_attach_card(struct cardbus_softc *);
254 void cardbus_detach_card(struct cardbus_softc *);
255 void *Cardbus_intr_establish(cardbus_devfunc_t,
256     int, int (*)(void *), void *);
257 void Cardbus_intr_disestablish(cardbus_devfunc_t, void *);
258 void *cardbus_intr_establish(cardbus_chipset_tag_t, cardbus_function_tag_t,
259     int, int (*) (void *), void *arg);
260 void cardbus_intr_disestablish(cardbus_chipset_tag_t, cardbus_function_tag_t,
261     void *);
262 
263 int cardbus_mapreg_map(struct cardbus_softc *, int, int, pcireg_t,
264     int, bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, bus_size_t *);
265 int cardbus_mapreg_unmap(struct cardbus_softc *, int, int,
266     bus_space_tag_t, bus_space_handle_t, bus_size_t);
267 
268 int cardbus_function_enable(struct cardbus_softc *, int);
269 int cardbus_function_disable(struct cardbus_softc *, int);
270 
271 int cardbus_get_capability(cardbus_chipset_tag_t, cardbus_function_tag_t,
272     pcitag_t, int, int *, pcireg_t *);
273 int cardbus_get_powerstate(cardbus_devfunc_t, pcitag_t, pcireg_t *);
274 int cardbus_set_powerstate(cardbus_devfunc_t, pcitag_t, pcireg_t);
275 
276 void cardbus_conf_capture(cardbus_chipset_tag_t, cardbus_function_tag_t,
277     pcitag_t, struct cardbus_conf_state *);
278 void cardbus_conf_restore(cardbus_chipset_tag_t, cardbus_function_tag_t,
279     pcitag_t, struct cardbus_conf_state *);
280 
281 #define Cardbus_function_enable(ct) cardbus_function_enable((ct)->ct_sc, (ct)->ct_func)
282 #define Cardbus_function_disable(ct) cardbus_function_disable((ct)->ct_sc, (ct)->ct_func)
283 
284 
285 
286 #define Cardbus_mapreg_map(ct, reg, type, busflags, tagp, handlep, basep, sizep) \
287           cardbus_mapreg_map((ct)->ct_sc, (ct->ct_func), (reg), (type),\
288                                  (busflags), (tagp), (handlep), (basep), (sizep))
289 #define Cardbus_mapreg_unmap(ct, reg, tag, handle, size) \
290           cardbus_mapreg_unmap((ct)->ct_sc, (ct->ct_func), (reg), (tag), (handle), (size))
291 
292 #define Cardbus_make_tag(ct) (*(ct)->ct_cf->cardbus_make_tag)((ct)->ct_cc, (ct)->ct_bus, (ct)->ct_func)
293 #define cardbus_make_tag(cc, cf, bus, function) ((cf)->cardbus_make_tag)((cc), (bus), (function))
294 
295 #define Cardbus_conf_read(ct, tag, offs) (*(ct)->ct_cf->cardbus_conf_read)((ct)->ct_cc, (tag), (offs))
296 #define cardbus_conf_read(cc, cf, tag, offs) ((cf)->cardbus_conf_read)((cc), (tag), (offs))
297 #define Cardbus_conf_write(ct, tag, offs, val) (*(ct)->ct_cf->cardbus_conf_write)((ct)->ct_cc, (tag), (offs), (val))
298 #define cardbus_conf_write(cc, cf, tag, offs, val) ((cf)->cardbus_conf_write)((cc), (tag), (offs), (val))
299 
300 #endif /* !_DEV_CARDBUS_CARDBUSVAR_H_ */
301