1 /* $NetBSD: pdqvar.h,v 1.27 2000/05/03 19:17:54 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
5 * 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. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * Id: pdqvar.h,v 1.21 1997/03/21 21:16:04 thomas Exp
27 * $FreeBSD: releng/6.4/sys/dev/pdq/pdq_freebsd.h 147256 2005-06-10 16:49:24Z brooks $
28 *
29 */
30
31 /*
32 * DEC PDQ FDDI Controller; PDQ O/S dependent definitions
33 *
34 * Written by Matt Thomas
35 *
36 */
37
38 #if defined(PDQ_HWSUPPORT)
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/mutex.h>
44 #include <sys/malloc.h>
45 #include <sys/socket.h>
46 #include <sys/sockio.h>
47
48 #include <sys/module.h>
49 #include <sys/bus.h>
50
51 #include <machine/bus.h>
52 #include <machine/resource.h>
53 #include <sys/rman.h>
54
55 #include <net/if.h>
56 #include <net/if_arp.h>
57 #include <net/if_dl.h>
58 #include <net/if_media.h>
59 #include <net/fddi.h>
60
61 #include <net/bpf.h>
62
63 #include <vm/vm.h> /* for vtophys */
64 #include <vm/pmap.h> /* for vtophys */
65 #include <machine/clock.h> /* for DELAY */
66
67 #endif /* PDQ_HWSUPPORT */
68
69 typedef struct _pdq_t pdq_t;
70 typedef struct _pdq_csrs_t pdq_csrs_t;
71 typedef struct _pdq_pci_csrs_t pdq_pci_csrs_t;
72 typedef struct _pdq_lanaddr_t pdq_lanaddr_t;
73 typedef unsigned int pdq_uint32_t;
74 typedef unsigned short pdq_uint16_t;
75 typedef unsigned char pdq_uint8_t;
76 typedef enum _pdq_boolean_t pdq_boolean_t;
77 typedef enum _pdq_type_t pdq_type_t;
78 typedef enum _pdq_state_t pdq_state_t;
79 typedef struct mbuf PDQ_OS_DATABUF_T;
80
81 typedef bus_space_tag_t pdq_bus_t;
82 typedef bus_space_handle_t pdq_bus_memaddr_t;
83 typedef pdq_bus_memaddr_t pdq_bus_memoffset_t;
84
85 extern devclass_t pdq_devclass;
86
87 enum _pdq_type_t {
88 PDQ_DEFPA, /* PCI-bus */
89 PDQ_DEFEA, /* EISA-bus */
90 PDQ_DEFTA, /* TurboChannel */
91 PDQ_DEFAA, /* FutureBus+ */
92 PDQ_DEFQA /* Q-bus */
93 };
94
95 #define sc_ifmedia ifmedia
96 #if 0 /* ALTQ */
97 #define IFQ_DEQUEUE IF_DEQUEUE
98 #define IFQ_IS_EMPTY(q) ((q)->ifq_len == 0)
99 #endif
100
101 typedef struct _pdq_os_ctx_t {
102 struct ifnet *ifp;
103 struct ifmedia ifmedia;
104 device_t dev;
105 int debug;
106
107 pdq_t * sc_pdq;
108 int sc_flags;
109 #define PDQIF_DOWNCALL 0x0001 /* active calling from if to pdq */
110
111 struct resource * io;
112 int io_rid;
113 int io_type;
114 bus_space_handle_t io_bsh;
115 bus_space_tag_t io_bst;
116
117 struct resource * mem;
118 int mem_rid;
119 int mem_type;
120 bus_space_handle_t mem_bsh;
121 bus_space_tag_t mem_bst;
122
123 struct resource * irq;
124 int irq_rid;
125 void * irq_ih;
126
127 struct mtx mtx;
128 } pdq_softc_t;
129
130 #define PDQ_LOCK(_sc) mtx_lock(&(_sc)->mtx)
131 #define PDQ_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
132
133 #define PDQ_OS_HDR_OFFSET PDQ_RX_FC_OFFSET
134
135 #define PDQ_OS_PAGESIZE PAGE_SIZE
136 #define PDQ_OS_TX_TRANSMIT 5
137
138 #define PDQ_OS_IORD_32(bt, bh, off) bus_space_read_4(bt, bh, off)
139 #define PDQ_OS_IOWR_32(bt, bh, off, data) bus_space_write_4(bt, bh, off, data)
140 #define PDQ_OS_IORD_8(bt, bh, off) bus_space_read_1(bt, bh, off)
141 #define PDQ_OS_IOWR_8(bt, bh, off, data) bus_space_write_1(bt, bh, off, data)
142
143 #define PDQ_CSR_OFFSET(base, offset) (0 + (offset)*sizeof(pdq_uint32_t))
144 #define PDQ_CSR_WRITE(csr, name, data) PDQ_OS_IOWR_32((csr)->csr_bus, (csr)->csr_base, (csr)->name, data)
145 #define PDQ_CSR_READ(csr, name) PDQ_OS_IORD_32((csr)->csr_bus, (csr)->csr_base, (csr)->name)
146
147 #define PDQ_OS_DATABUF_FREE(pdq, b) (m_freem(b))
148
149 #if defined(PDQ_OSSUPPORT)
150 #define PDQ_OS_TX_TIMEOUT 5 /* seconds */
151
152 #define PDQ_OS_IFP_TO_SOFTC(ifp) ((pdq_softc_t *) (ifp)->if_softc)
153 #define PDQ_BPF_MTAP(sc, m) BPF_MTAP((sc)->ifp, m)
154 #define PDQ_IFNET(sc) ((sc)->ifp)
155
156 #endif /* PDQ_OSSUPPORT */
157
158 #if defined(PDQ_HWSUPPORT)
159
160 #define PDQ_OS_PREFIX "%s: "
161 #define PDQ_OS_PREFIX_ARGS pdq->pdq_os_name
162
163 #define PDQ_OS_PTR_FMT "%p"
164 #define PDQ_OS_CSR_FMT "0x%x"
165
166 #define PDQ_OS_USEC_DELAY(n) DELAY(n)
167 #ifdef __alpha__
168 #define PDQ_OS_VA_TO_BUSPA(pdq, p) alpha_XXX_dmamap((vm_offset_t)p)
169 #else
170 #define PDQ_OS_VA_TO_BUSPA(pdq, p) vtophys(p)
171 #endif
172
173 #define PDQ_OS_MEMALLOC(n) malloc(n, M_DEVBUF, M_NOWAIT)
174 #define PDQ_OS_MEMFREE(p, n) free((void *) p, M_DEVBUF)
175 #define PDQ_OS_MEMZERO(p, n) bzero((caddr_t)(p), (n))
176 #define PDQ_OS_MEMALLOC_CONTIG(n) contigmalloc(n, M_DEVBUF, M_NOWAIT, 0x800000, ~0, PAGE_SIZE, 0)
177 #define PDQ_OS_MEMFREE_CONTIG(p, n) contigfree(p, n, M_DEVBUF)
178
179 #define PDQ_OS_DATABUF_SIZE (MCLBYTES)
180 #define PDQ_OS_DATABUF_NEXT(b) ((b)->m_next)
181 #define PDQ_OS_DATABUF_NEXT_SET(b, b1) ((b)->m_next = (b1))
182 #define PDQ_OS_DATABUF_NEXTPKT(b) ((b)->m_nextpkt)
183 #define PDQ_OS_DATABUF_NEXTPKT_SET(b, b1) ((b)->m_nextpkt = (b1))
184 #define PDQ_OS_DATABUF_LEN(b) ((b)->m_len)
185 #define PDQ_OS_DATABUF_LEN_SET(b, n) ((b)->m_len = (n))
186 /* #define PDQ_OS_DATABUF_LEN_ADJ(b, n) ((b)->m_len += (n)) */
187 #define PDQ_OS_DATABUF_PTR(b) (mtod((b), pdq_uint8_t *))
188 #define PDQ_OS_DATABUF_ADJ(b, n) ((b)->m_data += (n), (b)->m_len -= (n))
189
190 #define PDQ_OS_DATABUF_ALLOC(pdq, b) do { \
191 PDQ_OS_DATABUF_T *x_m0; \
192 MGETHDR(x_m0, M_DONTWAIT, MT_DATA); \
193 if (x_m0 != NULL) { \
194 MCLGET(x_m0, M_DONTWAIT); \
195 if ((x_m0->m_flags & M_EXT) == 0) { \
196 m_free(x_m0); \
197 (b) = NULL; \
198 } else { \
199 (b) = x_m0; \
200 x_m0->m_len = PDQ_OS_DATABUF_SIZE; \
201 } \
202 } else { \
203 (b) = NULL; \
204 } \
205 } while (0)
206
207 #define PDQ_OS_DATABUF_RESET(b) ((b)->m_data = (b)->m_ext.ext_buf, (b)->m_len = MCLBYTES)
208
209 #define PDQ_OS_DATABUF_ENQUEUE(q, b) do { \
210 PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
211 if ((q)->q_tail == NULL) \
212 (q)->q_head = (b); \
213 else \
214 PDQ_OS_DATABUF_NEXTPKT_SET(((PDQ_OS_DATABUF_T *)(q)->q_tail), b); \
215 (q)->q_tail = (b); \
216 } while (0)
217
218 #define PDQ_OS_DATABUF_DEQUEUE(q, b) do { \
219 if (((b) = (PDQ_OS_DATABUF_T *) (q)->q_head) != NULL) { \
220 if (((q)->q_head = PDQ_OS_DATABUF_NEXTPKT(b)) == NULL) \
221 (q)->q_tail = NULL; \
222 PDQ_OS_DATABUF_NEXTPKT_SET(b, NULL); \
223 } \
224 } while (0)
225
226 #define PDQ_OS_DATABUF_BUSPA(pdq, b) PDQ_OS_VA_TO_BUSPA(pdq, PDQ_OS_DATABUF_PTR(b))
227
228 #define PDQ_OS_CONSUMER_PRESYNC(pdq) do { } while(0)
229 #define PDQ_OS_CONSUMER_POSTSYNC(pdq) do { } while(0)
230 #define PDQ_OS_DESC_PRESYNC(pdq, d, s) do { } while(0)
231 #define PDQ_OS_DESC_POSTSYNC(pdq, d, s) do { } while(0)
232 #define PDQ_OS_CMDRQST_PRESYNC(pdq, s) do { } while(0)
233 #define PDQ_OS_CMDRQST_POSTSYNC(pdq, s) do { } while(0)
234 #define PDQ_OS_CMDRSP_PRESYNC(pdq, s) do { } while(0)
235 #define PDQ_OS_CMDRSP_POSTSYNC(pdq, s) do { } while(0)
236 #define PDQ_OS_RXPDU_PRESYNC(pdq, b, o, l) do { } while(0)
237 #define PDQ_OS_RXPDU_POSTSYNC(pdq, b, o, l) do { } while(0)
238 #define PDQ_OS_UNSOL_EVENT_PRESYNC(pdq, e) do { } while(0)
239 #define PDQ_OS_UNSOL_EVENT_POSTSYNC(pdq, e) do { } while(0)
240
241 #endif /* PDQ_HWSUPPORT */
242
243 /*
244 * OS dependent functions provided by pdq_ifsubr.c to pdq.c
245 */
246 void pdq_os_addr_fill (pdq_t *pdq, pdq_lanaddr_t *addrs, size_t numaddrs);
247 void pdq_os_receive_pdu (pdq_t *, PDQ_OS_DATABUF_T *, size_t, int);
248 void pdq_os_restart_transmitter (pdq_t *pdq);
249 void pdq_os_transmit_done (pdq_t *, PDQ_OS_DATABUF_T *);
250 void pdq_os_update_status (pdq_t *, const void *);
251
252 /*
253 * Driver interfaces functions provided by pdq.c to pdq_ifsubr.c
254 */
255 pdq_boolean_t pdq_queue_transmit_data (pdq_t *pdq, PDQ_OS_DATABUF_T *pdu);
256 void pdq_run (pdq_t *pdq);
257 pdq_state_t pdq_stop (pdq_t *pdq);
258
259 /*
260 * OS dependent functions provided by
261 * pdq_ifsubr.c or pdq.c to the bus front ends
262 */
263 void pdq_ifattach (pdq_softc_t *);
264 void pdq_ifdetach (pdq_softc_t *);
265 void pdq_free (device_t);
266 int pdq_interrupt (pdq_t *pdq);
267 void pdq_hwreset (pdq_t *pdq);
268 pdq_t * pdq_initialize (pdq_bus_t bus, pdq_bus_memaddr_t csr_va,
269 const char *name, int unit,
270 void *ctx, pdq_type_t type);
271 /*
272 * Misc prototypes.
273 */
274 void pdq_flush_transmitter(pdq_t *pdq);
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