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1 /*-
2  * Device probe and attach routines for the following
3  * Advanced Systems Inc. SCSI controllers:
4  *
5  *   Connectivity Products:
6  *      ABP902/3902     - Bus-Master PCI (16 CDB)
7  *      ABP3905         - Bus-Master PCI (16 CDB)
8  *      ABP915          - Bus-Master PCI (16 CDB)
9  *      ABP920          - Bus-Master PCI (16 CDB)
10  *      ABP3922         - Bus-Master PCI (16 CDB)
11  *      ABP3925         - Bus-Master PCI (16 CDB)
12  *      ABP930          - Bus-Master PCI (16 CDB) *
13  *      ABP930U         - Bus-Master PCI Ultra (16 CDB)
14  *      ABP930UA        - Bus-Master PCI Ultra (16 CDB)
15  *      ABP960          - Bus-Master PCI MAC/PC (16 CDB) **
16  *      ABP960U         - Bus-Master PCI MAC/PC (16 CDB) **
17  *
18  *   Single Channel Products:
19  *      ABP940          - Bus-Master PCI (240 CDB)
20  *      ABP940U         - Bus-Master PCI Ultra (240 CDB)
21  *      ABP940UA/3940UA - Bus-Master PCI Ultra (240 CDB)
22  *      ABP3960UA       - Bus-Master PCI MAC/PC (240 CDB)
23  *      ABP970          - Bus-Master PCI MAC/PC (240 CDB)
24  *      ABP970U         - Bus-Master PCI MAC/PC Ultra (240 CDB)
25  *
26  *   Dual Channel Products:  
27  *      ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
28  *      ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
29  *      ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
30  *      ABP980UA/3980UA - Four Channel Bus-Master PCI Ultra (16 CDB Per Chan.)
31  *
32  *   Footnotes:
33  *       * This board has been sold by SIIG as the Fast SCSI Pro PCI.
34  *      ** This board has been sold by Iomega as a Jaz Jet PCI adapter. 
35  *
36  * Copyright (c) 1997 Justin Gibbs.
37  * All rights reserved.
38  *
39  * Redistribution and use in source and binary forms, with or without
40  * modification, are permitted provided that the following conditions
41  * are met:
42  * 1. Redistributions of source code must retain the above copyright
43  *    notice, this list of conditions, and the following disclaimer,
44  *    without modification.
45  * 2. The name of the author may not be used to endorse or promote products
46  *    derived from this software without specific prior written permission.
47  *
48  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
52  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58  * SUCH DAMAGE.
59  */
60
61 #include <sys/cdefs.h>
62 __FBSDID("$FreeBSD$");
63
64 #include <sys/param.h>
65 #include <sys/systm.h>
66 #include <sys/kernel.h>
67 #include <sys/lock.h>
68 #include <sys/module.h>
69 #include <sys/mutex.h>
70
71 #include <machine/bus_pio.h>
72 #include <machine/bus.h>
73 #include <machine/resource.h>
74 #include <sys/bus.h>
75 #include <sys/rman.h>
76
77 #include <dev/pci/pcireg.h>
78 #include <dev/pci/pcivar.h>
79
80 #include <dev/advansys/advansys.h>
81
82 #define PCI_BASEADR0    PCIR_BAR(0)             /* I/O Address */
83 #define PCI_BASEADR1    PCIR_BAR(1)             /* Mem I/O Address */
84
85 #define PCI_DEVICE_ID_ADVANSYS_1200A    0x110010CD
86 #define PCI_DEVICE_ID_ADVANSYS_1200B    0x120010CD
87 #define PCI_DEVICE_ID_ADVANSYS_3000     0x130010CD
88 #define PCI_DEVICE_REV_ADVANSYS_3150    0x02
89 #define PCI_DEVICE_REV_ADVANSYS_3050    0x03
90
91 #define ADV_PCI_MAX_DMA_ADDR    (0xFFFFFFFFL)
92 #define ADV_PCI_MAX_DMA_COUNT   (0xFFFFFFFFL)
93
94 static int adv_pci_probe(device_t);
95 static int adv_pci_attach(device_t);
96
97 /* 
98  * The overrun buffer shared amongst all PCI adapters.
99  */
100 static  u_int8_t*       overrun_buf;
101 static  bus_dma_tag_t   overrun_dmat;
102 static  bus_dmamap_t    overrun_dmamap;
103 static  bus_addr_t      overrun_physbase;
104
105 static int
106 adv_pci_probe(device_t dev)
107 {
108         int     rev = pci_get_revid(dev);
109
110         switch (pci_get_devid(dev)) {
111         case PCI_DEVICE_ID_ADVANSYS_1200A:
112                 device_set_desc(dev, "AdvanSys ASC1200A SCSI controller");
113                 return 0;
114         case PCI_DEVICE_ID_ADVANSYS_1200B:
115                 device_set_desc(dev, "AdvanSys ASC1200B SCSI controller");
116                 return 0;
117         case PCI_DEVICE_ID_ADVANSYS_3000:
118                 if (rev == PCI_DEVICE_REV_ADVANSYS_3150) {
119                         device_set_desc(dev,
120                                         "AdvanSys ASC3150 SCSI controller");
121                         return 0;
122                 } else if (rev == PCI_DEVICE_REV_ADVANSYS_3050) {
123                         device_set_desc(dev,
124                                         "AdvanSys ASC3030/50 SCSI controller");
125                         return 0;
126                 } else if (rev >= PCI_DEVICE_REV_ADVANSYS_3150) {
127                         device_set_desc(dev, "Unknown AdvanSys controller");
128                         return 0;
129                 }
130                 break;
131         default:
132                 break;
133         }
134         return ENXIO;
135 }
136
137 static int
138 adv_pci_attach(device_t dev)
139 {
140         struct          adv_softc *adv;
141         u_int32_t       id;
142         u_int32_t       command;
143         int             error, rid, irqrid;
144         void            *ih;
145         struct resource *iores, *irqres;
146
147         /*
148          * Determine the chip version.
149          */
150         id = pci_read_config(dev, PCIR_DEVVENDOR, /*bytes*/4);
151         command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/1);
152
153         /*
154          * These cards do not allow memory mapped accesses, so we must
155          * ensure that I/O accesses are available or we won't be able
156          * to talk to them.
157          */
158         if ((command & (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN))
159          != (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN)) {
160                 command |= PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN;
161                 pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1);
162         }
163
164         /*
165          * Early chips can't handle non-zero latency timer settings.
166          */
167         if (id == PCI_DEVICE_ID_ADVANSYS_1200A
168          || id == PCI_DEVICE_ID_ADVANSYS_1200B) {
169                 pci_write_config(dev, PCIR_LATTIMER, /*value*/0, /*bytes*/1);
170         }
171
172         rid = PCI_BASEADR0;
173         iores = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
174                                        RF_ACTIVE);
175         if (iores == NULL)
176                 return ENXIO;
177
178         if (adv_find_signature(rman_get_bustag(iores),
179                                rman_get_bushandle(iores)) == 0) {
180                 bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
181                 return ENXIO;
182         }
183
184         adv = adv_alloc(dev, rman_get_bustag(iores), rman_get_bushandle(iores));
185         if (adv == NULL) {
186                 bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
187                 return ENXIO;
188         }
189
190         /* Allocate a dmatag for our transfer DMA maps */
191         /* XXX Should be a child of the PCI bus dma tag */
192         error = bus_dma_tag_create(
193                         /* parent       */ NULL,
194                         /* alignment    */ 1,
195                         /* boundary     */ 0,
196                         /* lowaddr      */ ADV_PCI_MAX_DMA_ADDR,
197                         /* highaddr     */ BUS_SPACE_MAXADDR,
198                         /* filter       */ NULL,
199                         /* filterarg    */ NULL,
200                         /* maxsize      */ BUS_SPACE_MAXSIZE_32BIT,
201                         /* nsegments    */ ~0,
202                         /* maxsegsz     */ ADV_PCI_MAX_DMA_COUNT,
203                         /* flags        */ 0,
204                         /* lockfunc     */ busdma_lock_mutex,
205                         /* lockarg      */ &Giant,
206                         &adv->parent_dmat);
207  
208         if (error != 0) {
209                 printf("%s: Could not allocate DMA tag - error %d\n",
210                        adv_name(adv), error);
211                 adv_free(adv);
212                 bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
213                 return ENXIO;
214         }
215
216         adv->init_level++;
217
218         if (overrun_buf == NULL) {
219                 /* Need to allocate our overrun buffer */
220                 if (bus_dma_tag_create(
221                                 /* parent       */ adv->parent_dmat,
222                                 /* alignment    */ 8,
223                                 /* boundary     */ 0,
224                                 /* lowaddr      */ ADV_PCI_MAX_DMA_ADDR,
225                                 /* highaddr     */ BUS_SPACE_MAXADDR,
226                                 /* filter       */ NULL,
227                                 /* filterarg    */ NULL,
228                                 /* maxsize      */ ADV_OVERRUN_BSIZE,
229                                 /* nsegments    */ 1,
230                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_32BIT,
231                                 /* flags        */ 0,
232                                 /* lockfunc     */ busdma_lock_mutex,
233                                 /* lockarg      */ &Giant,
234                                 &overrun_dmat) != 0) {
235                         bus_dma_tag_destroy(adv->parent_dmat);
236                         adv_free(adv);
237                         bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
238                         return ENXIO;
239                 }
240                 if (bus_dmamem_alloc(overrun_dmat,
241                                      (void **)&overrun_buf,
242                                      BUS_DMA_NOWAIT,
243                                      &overrun_dmamap) != 0) {
244                         bus_dma_tag_destroy(overrun_dmat);
245                         bus_dma_tag_destroy(adv->parent_dmat);
246                         adv_free(adv);
247                         bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
248                         return ENXIO;
249                 }
250                 /* And permanently map it in */  
251                 bus_dmamap_load(overrun_dmat, overrun_dmamap,
252                                 overrun_buf, ADV_OVERRUN_BSIZE,
253                                 adv_map, &overrun_physbase,
254                                 /*flags*/0);
255         }
256
257         adv->overrun_physbase = overrun_physbase;
258                         
259         /*
260          * Stop the chip.
261          */
262         ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
263         ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
264
265         adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
266         adv->type = ADV_PCI;
267         
268         /*
269          * Setup active negation and signal filtering.
270          */
271         {
272                 u_int8_t extra_cfg;
273
274                 if (adv->chip_version >= ADV_CHIP_VER_PCI_ULTRA_3150)
275                         adv->type |= ADV_ULTRA;
276                 if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3050)
277                         extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_WR_EN_FILTER;
278                 else
279                         extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;
280                 ADV_OUTB(adv, ADV_REG_IFC, extra_cfg);
281         }
282
283         if (adv_init(adv) != 0) {
284                 adv_free(adv);
285                 bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
286                 return ENXIO;
287         }
288
289         adv->max_dma_count = ADV_PCI_MAX_DMA_COUNT;
290         adv->max_dma_addr = ADV_PCI_MAX_DMA_ADDR;
291
292 #if CC_DISABLE_PCI_PARITY_INT
293         {
294                 u_int16_t config_msw;
295
296                 config_msw = ADV_INW(adv, ADV_CONFIG_MSW);
297                 config_msw &= 0xFFC0;
298                 ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw); 
299         }
300 #endif
301  
302         if (id == PCI_DEVICE_ID_ADVANSYS_1200A
303          || id == PCI_DEVICE_ID_ADVANSYS_1200B) {
304                 adv->bug_fix_control |= ADV_BUG_FIX_IF_NOT_DWB;
305                 adv->bug_fix_control |= ADV_BUG_FIX_ASYN_USE_SYN;
306                 adv->fix_asyn_xfer = ~0;
307         }
308
309         irqrid = 0;
310         irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irqrid,
311                                         RF_SHAREABLE | RF_ACTIVE);
312         if (irqres == NULL ||
313             bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY, adv_intr, adv, &ih)) {
314                 adv_free(adv);
315                 bus_release_resource(dev, SYS_RES_IOPORT, rid, iores);
316                 return ENXIO;
317         }
318
319         adv_attach(adv);
320         return 0;
321 }
322
323 static device_method_t adv_pci_methods[] = {
324         /* Device interface */
325         DEVMETHOD(device_probe,         adv_pci_probe),
326         DEVMETHOD(device_attach,        adv_pci_attach),
327         { 0, 0 }
328 };
329
330 static driver_t adv_pci_driver = {
331         "adv", adv_pci_methods, sizeof(struct adv_softc)
332 };
333
334 static devclass_t adv_pci_devclass;
335 DRIVER_MODULE(adv, pci, adv_pci_driver, adv_pci_devclass, 0, 0);