1 /*-
2 * Device probe and attach routines for the following
3 * Advanced Systems Inc. SCSI controllers:
4 *
5 * ABP[3]940UW - Bus-Master PCI Ultra-Wide (253 CDB)
6 * ABP950UW - Dual Channel Bus-Master PCI Ultra-Wide (253 CDB/Channel)
7 * ABP970UW - Bus-Master PCI Ultra-Wide (253 CDB)
8 * ABP3940U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB)
9 * ABP3950U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB)
10 *
11 * Copyright (c) 1998, 1999, 2000 Justin Gibbs.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions, and the following disclaimer,
19 * without modification.
20 * 2. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: releng/10.2/sys/dev/advansys/adw_pci.c 254263 2013-08-12 23:30:01Z scottl $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
43 #include <sys/lock.h>
44 #include <sys/mutex.h>
45 #include <sys/bus.h>
46
47 #include <machine/bus.h>
48 #include <machine/resource.h>
49
50 #include <sys/rman.h>
51
52 #include <dev/pci/pcireg.h>
53 #include <dev/pci/pcivar.h>
54
55 #include <cam/cam.h>
56 #include <cam/scsi/scsi_all.h>
57
58 #include <dev/advansys/adwvar.h>
59 #include <dev/advansys/adwlib.h>
60 #include <dev/advansys/adwmcode.h>
61
62 #define ADW_PCI_IOBASE PCIR_BAR(0) /* I/O Address */
63 #define ADW_PCI_MEMBASE PCIR_BAR(1) /* Mem I/O Address */
64
65 #define PCI_ID_ADVANSYS_3550 0x230010CD00000000ull
66 #define PCI_ID_ADVANSYS_38C0800_REV1 0x250010CD00000000ull
67 #define PCI_ID_ADVANSYS_38C1600_REV1 0x270010CD00000000ull
68 #define PCI_ID_ALL_MASK 0xFFFFFFFFFFFFFFFFull
69 #define PCI_ID_DEV_VENDOR_MASK 0xFFFFFFFF00000000ull
70
71 struct adw_pci_identity;
72 typedef int (adw_device_setup_t)(device_t, struct adw_pci_identity *,
73 struct adw_softc *adw);
74
75 struct adw_pci_identity {
76 u_int64_t full_id;
77 u_int64_t id_mask;
78 char *name;
79 adw_device_setup_t *setup;
80 const struct adw_mcode *mcode_data;
81 const struct adw_eeprom *default_eeprom;
82 };
83
84 static adw_device_setup_t adw_asc3550_setup;
85 static adw_device_setup_t adw_asc38C0800_setup;
86 #ifdef NOTYET
87 static adw_device_setup_t adw_asc38C1600_setup;
88 #endif
89
90 struct adw_pci_identity adw_pci_ident_table[] =
91 {
92 /* asc3550 based controllers */
93 {
94 PCI_ID_ADVANSYS_3550,
95 PCI_ID_DEV_VENDOR_MASK,
96 "AdvanSys 3550 Ultra SCSI Adapter",
97 adw_asc3550_setup,
98 &adw_asc3550_mcode_data,
99 &adw_asc3550_default_eeprom
100 },
101 /* asc38C0800 based controllers */
102 {
103 PCI_ID_ADVANSYS_38C0800_REV1,
104 PCI_ID_DEV_VENDOR_MASK,
105 "AdvanSys 38C0800 Ultra2 SCSI Adapter",
106 adw_asc38C0800_setup,
107 &adw_asc38C0800_mcode_data,
108 &adw_asc38C0800_default_eeprom
109 },
110 #ifdef NOTYET
111 /* XXX Disabled until I have hardware to test with */
112 /* asc38C1600 based controllers */
113 {
114 PCI_ID_ADVANSYS_38C1600_REV1,
115 PCI_ID_DEV_VENDOR_MASK,
116 "AdvanSys 38C1600 Ultra160 SCSI Adapter",
117 adw_asc38C1600_setup,
118 NULL, /* None provided by vendor thus far */
119 NULL /* None provided by vendor thus far */
120 }
121 #endif
122 };
123
124 static const int adw_num_pci_devs =
125 sizeof(adw_pci_ident_table) / sizeof(*adw_pci_ident_table);
126
127 #define ADW_PCI_MAX_DMA_ADDR (0xFFFFFFFFUL)
128 #define ADW_PCI_MAX_DMA_COUNT (0xFFFFFFFFUL)
129
130 static int adw_pci_probe(device_t dev);
131 static int adw_pci_attach(device_t dev);
132
133 static device_method_t adw_pci_methods[] = {
134 /* Device interface */
135 DEVMETHOD(device_probe, adw_pci_probe),
136 DEVMETHOD(device_attach, adw_pci_attach),
137 { 0, 0 }
138 };
139
140 static driver_t adw_pci_driver = {
141 "adw",
142 adw_pci_methods,
143 sizeof(struct adw_softc)
144 };
145
146 static devclass_t adw_devclass;
147
148 DRIVER_MODULE(adw, pci, adw_pci_driver, adw_devclass, 0, 0);
149 MODULE_DEPEND(adw, pci, 1, 1, 1);
150
151 static __inline u_int64_t
152 adw_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
153 {
154 u_int64_t id;
155
156 id = subvendor
157 | (subdevice << 16)
158 | ((u_int64_t)vendor << 32)
159 | ((u_int64_t)device << 48);
160
161 return (id);
162 }
163
164 static struct adw_pci_identity *
165 adw_find_pci_device(device_t dev)
166 {
167 u_int64_t full_id;
168 struct adw_pci_identity *entry;
169 u_int i;
170
171 full_id = adw_compose_id(pci_get_device(dev),
172 pci_get_vendor(dev),
173 pci_get_subdevice(dev),
174 pci_get_subvendor(dev));
175
176 for (i = 0; i < adw_num_pci_devs; i++) {
177 entry = &adw_pci_ident_table[i];
178 if (entry->full_id == (full_id & entry->id_mask))
179 return (entry);
180 }
181 return (NULL);
182 }
183
184 static int
185 adw_pci_probe(device_t dev)
186 {
187 struct adw_pci_identity *entry;
188
189 entry = adw_find_pci_device(dev);
190 if (entry != NULL) {
191 device_set_desc(dev, entry->name);
192 return (BUS_PROBE_DEFAULT);
193 }
194 return (ENXIO);
195 }
196
197 static int
198 adw_pci_attach(device_t dev)
199 {
200 struct adw_softc *adw;
201 struct adw_pci_identity *entry;
202 u_int16_t command;
203 struct resource *regs;
204 int regs_type;
205 int regs_id;
206 int error;
207 int zero;
208
209 entry = adw_find_pci_device(dev);
210 if (entry == NULL)
211 return (ENXIO);
212 regs = NULL;
213 regs_type = 0;
214 regs_id = 0;
215 #ifdef ADW_ALLOW_MEMIO
216 regs_type = SYS_RES_MEMORY;
217 regs_id = ADW_PCI_MEMBASE;
218 regs = bus_alloc_resource_any(dev, regs_type, ®s_id, RF_ACTIVE);
219 #endif
220 if (regs == NULL) {
221 regs_type = SYS_RES_IOPORT;
222 regs_id = ADW_PCI_IOBASE;
223 regs = bus_alloc_resource_any(dev, regs_type,
224 ®s_id, RF_ACTIVE);
225 }
226
227 if (regs == NULL) {
228 device_printf(dev, "can't allocate register resources\n");
229 return (ENOMEM);
230 }
231
232 adw = adw_alloc(dev, regs, regs_type, regs_id);
233 if (adw == NULL)
234 return(ENOMEM);
235
236 /*
237 * Now that we have access to our registers, just verify that
238 * this really is an AdvanSys device.
239 */
240 if (adw_find_signature(adw) == 0) {
241 adw_free(adw);
242 return (ENXIO);
243 }
244
245 adw_reset_chip(adw);
246
247 error = entry->setup(dev, entry, adw);
248
249 if (error != 0)
250 return (error);
251
252 /* Ensure busmastering is enabled */
253 pci_enable_busmaster(dev);
254
255 /* Allocate a dmatag for our transfer DMA maps */
256 error = bus_dma_tag_create(
257 /* parent */ bus_get_dma_tag(dev),
258 /* alignment */ 1,
259 /* boundary */ 0,
260 /* lowaddr */ ADW_PCI_MAX_DMA_ADDR,
261 /* highaddr */ BUS_SPACE_MAXADDR,
262 /* filter */ NULL,
263 /* filterarg */ NULL,
264 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
265 /* nsegments */ ~0,
266 /* maxsegsz */ ADW_PCI_MAX_DMA_COUNT,
267 /* flags */ 0,
268 /* lockfunc */ NULL,
269 /* lockarg */ NULL,
270 &adw->parent_dmat);
271
272 adw->init_level++;
273
274 if (error != 0) {
275 device_printf(dev, "Could not allocate DMA tag - error %d\n",
276 error);
277 adw_free(adw);
278 return (error);
279 }
280
281 adw->init_level++;
282
283 error = adw_init(adw);
284 if (error != 0) {
285 adw_free(adw);
286 return (error);
287 }
288
289 /*
290 * If the PCI Configuration Command Register "Parity Error Response
291 * Control" Bit was clear (0), then set the microcode variable
292 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode
293 * to ignore DMA parity errors.
294 */
295 command = pci_read_config(dev, PCIR_COMMAND, /*bytes*/2);
296 if ((command & PCIM_CMD_PERRESPEN) == 0)
297 adw_lram_write_16(adw, ADW_MC_CONTROL_FLAG,
298 adw_lram_read_16(adw, ADW_MC_CONTROL_FLAG)
299 | ADW_MC_CONTROL_IGN_PERR);
300
301 zero = 0;
302 adw->irq_res_type = SYS_RES_IRQ;
303 adw->irq = bus_alloc_resource_any(dev, adw->irq_res_type, &zero,
304 RF_ACTIVE | RF_SHAREABLE);
305 if (adw->irq == NULL) {
306 adw_free(adw);
307 return (ENOMEM);
308 }
309
310 error = adw_attach(adw);
311 if (error != 0)
312 adw_free(adw);
313 return (error);
314 }
315
316 static int
317 adw_generic_setup(device_t dev, struct adw_pci_identity *entry,
318 struct adw_softc *adw)
319 {
320 adw->channel = pci_get_function(dev) == 1 ? 'B' : 'A';
321 adw->chip = ADW_CHIP_NONE;
322 adw->features = ADW_FENONE;
323 adw->flags = ADW_FNONE;
324 adw->mcode_data = entry->mcode_data;
325 adw->default_eeprom = entry->default_eeprom;
326 return (0);
327 }
328
329 static int
330 adw_asc3550_setup(device_t dev, struct adw_pci_identity *entry,
331 struct adw_softc *adw)
332 {
333 int error;
334
335 error = adw_generic_setup(dev, entry, adw);
336 if (error != 0)
337 return (error);
338 adw->chip = ADW_CHIP_ASC3550;
339 adw->features = ADW_ASC3550_FE;
340 adw->memsize = ADW_3550_MEMSIZE;
341 /*
342 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits
343 * sets a FIFO threshold of 128 bytes. This register is
344 * only accessible to the host.
345 */
346 adw_outb(adw, ADW_DMA_CFG0,
347 ADW_DMA_CFG0_START_CTL_EM_FU|ADW_DMA_CFG0_READ_CMD_MRM);
348 adw_outb(adw, ADW_MEM_CFG,
349 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_8KB);
350 return (0);
351 }
352
353 static int
354 adw_asc38C0800_setup(device_t dev, struct adw_pci_identity *entry,
355 struct adw_softc *adw)
356 {
357 int error;
358
359 error = adw_generic_setup(dev, entry, adw);
360 if (error != 0)
361 return (error);
362 /*
363 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and
364 * START_CTL_TH [3:2] bits for the default FIFO threshold.
365 *
366 * Note: ASC-38C0800 FIFO threshold has been changed to 256 bytes.
367 *
368 * For DMA Errata #4 set the BC_THRESH_ENB bit.
369 */
370 adw_outb(adw, ADW_DMA_CFG0,
371 ADW_DMA_CFG0_BC_THRESH_ENB|ADW_DMA_CFG0_FIFO_THRESH_80B
372 |ADW_DMA_CFG0_START_CTL_TH|ADW_DMA_CFG0_READ_CMD_MRM);
373 adw_outb(adw, ADW_MEM_CFG,
374 adw_inb(adw, ADW_MEM_CFG) | ADW_MEM_CFG_RAM_SZ_16KB);
375 adw->chip = ADW_CHIP_ASC38C0800;
376 adw->features = ADW_ASC38C0800_FE;
377 adw->memsize = ADW_38C0800_MEMSIZE;
378 return (error);
379 }
380
381 #ifdef NOTYET
382 static int
383 adw_asc38C1600_setup(device_t dev, struct adw_pci_identity *entry,
384 struct adw_softc *adw)
385 {
386 int error;
387
388 error = adw_generic_setup(dev, entry, adw);
389 if (error != 0)
390 return (error);
391 adw->chip = ADW_CHIP_ASC38C1600;
392 adw->features = ADW_ASC38C1600_FE;
393 adw->memsize = ADW_38C1600_MEMSIZE;
394 return (error);
395 }
396 #endif
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