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42#include "aic7xxx_osm.h"
43#include "aic7xxx_pci.h"
44
45static int ahc_linux_pci_dev_probe(struct pci_dev *pdev,
46 const struct pci_device_id *ent);
47static int ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc,
48 u_long *base);
49static int ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
50 u_long *bus_addr,
51 uint8_t __iomem **maddr);
52static int ahc_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg);
53static int ahc_linux_pci_dev_resume(struct pci_dev *pdev);
54static void ahc_linux_pci_dev_remove(struct pci_dev *pdev);
55
56
57
58#define ID(x) ID_C(x, PCI_CLASS_STORAGE_SCSI)
59
60static struct pci_device_id ahc_linux_pci_id_table[] = {
61
62 ID(ID_AHA_2902_04_10_15_20C_30C),
63
64 ID(ID_AHA_2930CU),
65 ID(ID_AHA_1480A & ID_DEV_VENDOR_MASK),
66 ID(ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK),
67 ID(ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK),
68 ID(ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK),
69
70 ID(ID_AHA_2940),
71 ID(ID_AHA_3940),
72 ID(ID_AHA_398X),
73 ID(ID_AHA_2944),
74 ID(ID_AHA_3944),
75 ID(ID_AHA_4944),
76
77 ID(ID_AHA_2940U & ID_DEV_VENDOR_MASK),
78 ID(ID_AHA_3940U & ID_DEV_VENDOR_MASK),
79 ID(ID_AHA_2944U & ID_DEV_VENDOR_MASK),
80 ID(ID_AHA_3944U & ID_DEV_VENDOR_MASK),
81 ID(ID_AHA_398XU & ID_DEV_VENDOR_MASK),
82 ID(ID_AHA_4944U & ID_DEV_VENDOR_MASK),
83 ID(ID_AHA_2930U & ID_DEV_VENDOR_MASK),
84 ID(ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK),
85 ID(ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK),
86
87 ID(ID_AHA_2930U2),
88 ID(ID_AHA_2940U2B),
89 ID(ID_AHA_2940U2_OEM),
90 ID(ID_AHA_2940U2),
91 ID(ID_AHA_2950U2B),
92 ID16(ID_AIC7890_ARO & ID_AIC7895_ARO_MASK),
93 ID(ID_AAA_131U2),
94
95 ID(ID_AHA_29160),
96 ID(ID_AHA_29160_CPQ),
97 ID(ID_AHA_29160N),
98 ID(ID_AHA_29160C),
99 ID(ID_AHA_29160B),
100 ID(ID_AHA_19160B),
101 ID(ID_AIC7892_ARO),
102
103 ID(ID_AHA_2940U_DUAL),
104 ID(ID_AHA_3940AU),
105 ID(ID_AHA_3944AU),
106 ID(ID_AIC7895_ARO),
107 ID(ID_AHA_3950U2B_0),
108 ID(ID_AHA_3950U2B_1),
109 ID(ID_AHA_3950U2D_0),
110 ID(ID_AHA_3950U2D_1),
111 ID(ID_AIC7896_ARO),
112
113 ID(ID_AHA_3960D),
114 ID(ID_AHA_3960D_CPQ),
115 ID(ID_AIC7899_ARO),
116
117 ID(ID_AIC7850 & ID_DEV_VENDOR_MASK),
118 ID(ID_AIC7855 & ID_DEV_VENDOR_MASK),
119 ID(ID_AIC7859 & ID_DEV_VENDOR_MASK),
120 ID(ID_AIC7860 & ID_DEV_VENDOR_MASK),
121 ID(ID_AIC7870 & ID_DEV_VENDOR_MASK),
122 ID(ID_AIC7880 & ID_DEV_VENDOR_MASK),
123 ID16(ID_AIC7890 & ID_9005_GENERIC_MASK),
124 ID16(ID_AIC7892 & ID_9005_GENERIC_MASK),
125 ID(ID_AIC7895 & ID_DEV_VENDOR_MASK),
126 ID16(ID_AIC7896 & ID_9005_GENERIC_MASK),
127 ID16(ID_AIC7899 & ID_9005_GENERIC_MASK),
128 ID(ID_AIC7810 & ID_DEV_VENDOR_MASK),
129 ID(ID_AIC7815 & ID_DEV_VENDOR_MASK),
130 { 0 }
131};
132
133MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
134
135static struct pci_driver aic7xxx_pci_driver = {
136 .name = "aic7xxx",
137 .probe = ahc_linux_pci_dev_probe,
138#ifdef CONFIG_PM
139 .suspend = ahc_linux_pci_dev_suspend,
140 .resume = ahc_linux_pci_dev_resume,
141#endif
142 .remove = ahc_linux_pci_dev_remove,
143 .id_table = ahc_linux_pci_id_table
144};
145
146static int
147ahc_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg)
148{
149 struct ahc_softc *ahc = pci_get_drvdata(pdev);
150 int rc;
151
152 if ((rc = ahc_suspend(ahc)))
153 return rc;
154
155 pci_save_state(pdev);
156 pci_disable_device(pdev);
157
158 if (mesg.event == PM_EVENT_SUSPEND)
159 pci_set_power_state(pdev, PCI_D3hot);
160
161 return rc;
162}
163
164static int
165ahc_linux_pci_dev_resume(struct pci_dev *pdev)
166{
167 struct ahc_softc *ahc = pci_get_drvdata(pdev);
168 int rc;
169
170 pci_set_power_state(pdev, PCI_D0);
171 pci_restore_state(pdev);
172
173 if ((rc = pci_enable_device(pdev))) {
174 dev_printk(KERN_ERR, &pdev->dev,
175 "failed to enable device after resume (%d)\n", rc);
176 return rc;
177 }
178
179 pci_set_master(pdev);
180
181 ahc_pci_resume(ahc);
182
183 return (ahc_resume(ahc));
184}
185
186static void
187ahc_linux_pci_dev_remove(struct pci_dev *pdev)
188{
189 struct ahc_softc *ahc = pci_get_drvdata(pdev);
190 u_long s;
191
192 if (ahc->platform_data && ahc->platform_data->host)
193 scsi_remove_host(ahc->platform_data->host);
194
195 ahc_lock(ahc, &s);
196 ahc_intr_enable(ahc, FALSE);
197 ahc_unlock(ahc, &s);
198 ahc_free(ahc);
199}
200
201static void
202ahc_linux_pci_inherit_flags(struct ahc_softc *ahc)
203{
204 struct pci_dev *pdev = ahc->dev_softc, *master_pdev;
205 unsigned int master_devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
206
207 master_pdev = pci_get_slot(pdev->bus, master_devfn);
208 if (master_pdev) {
209 struct ahc_softc *master = pci_get_drvdata(master_pdev);
210 if (master) {
211 ahc->flags &= ~AHC_BIOS_ENABLED;
212 ahc->flags |= master->flags & AHC_BIOS_ENABLED;
213
214 ahc->flags &= ~AHC_PRIMARY_CHANNEL;
215 ahc->flags |= master->flags & AHC_PRIMARY_CHANNEL;
216 } else
217 printk(KERN_ERR "aic7xxx: no multichannel peer found!\n");
218 pci_dev_put(master_pdev);
219 }
220}
221
222static int
223ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
224{
225 char buf[80];
226 const uint64_t mask_39bit = 0x7FFFFFFFFFULL;
227 struct ahc_softc *ahc;
228 ahc_dev_softc_t pci;
229 struct ahc_pci_identity *entry;
230 char *name;
231 int error;
232 struct device *dev = &pdev->dev;
233
234 pci = pdev;
235 entry = ahc_find_pci_device(pci);
236 if (entry == NULL)
237 return (-ENODEV);
238
239
240
241
242
243
244 sprintf(buf, "ahc_pci:%d:%d:%d",
245 ahc_get_pci_bus(pci),
246 ahc_get_pci_slot(pci),
247 ahc_get_pci_function(pci));
248 name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
249 if (name == NULL)
250 return (-ENOMEM);
251 strcpy(name, buf);
252 ahc = ahc_alloc(NULL, name);
253 if (ahc == NULL)
254 return (-ENOMEM);
255 if (pci_enable_device(pdev)) {
256 ahc_free(ahc);
257 return (-ENODEV);
258 }
259 pci_set_master(pdev);
260
261 if (sizeof(dma_addr_t) > 4
262 && ahc->features & AHC_LARGE_SCBS
263 && dma_set_mask(dev, mask_39bit) == 0
264 && dma_get_required_mask(dev) > DMA_32BIT_MASK) {
265 ahc->flags |= AHC_39BIT_ADDRESSING;
266 } else {
267 if (dma_set_mask(dev, DMA_32BIT_MASK)) {
268 ahc_free(ahc);
269 printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
270 return (-ENODEV);
271 }
272 }
273 ahc->dev_softc = pci;
274 error = ahc_pci_config(ahc, entry);
275 if (error != 0) {
276 ahc_free(ahc);
277 return (-error);
278 }
279
280
281
282
283
284 if ((ahc->features & AHC_MULTI_FUNC) && PCI_FUNC(pdev->devfn) != 0)
285 ahc_linux_pci_inherit_flags(ahc);
286
287 pci_set_drvdata(pdev, ahc);
288 ahc_linux_register_host(ahc, &aic7xxx_driver_template);
289 return (0);
290}
291
292int
293ahc_linux_pci_init(void)
294{
295 return pci_register_driver(&aic7xxx_pci_driver);
296}
297
298void
299ahc_linux_pci_exit(void)
300{
301 pci_unregister_driver(&aic7xxx_pci_driver);
302}
303
304static int
305ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, u_long *base)
306{
307 if (aic7xxx_allow_memio == 0)
308 return (ENOMEM);
309
310 *base = pci_resource_start(ahc->dev_softc, 0);
311 if (*base == 0)
312 return (ENOMEM);
313 if (request_region(*base, 256, "aic7xxx") == 0)
314 return (ENOMEM);
315 return (0);
316}
317
318static int
319ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
320 u_long *bus_addr,
321 uint8_t __iomem **maddr)
322{
323 u_long start;
324 int error;
325
326 error = 0;
327 start = pci_resource_start(ahc->dev_softc, 1);
328 if (start != 0) {
329 *bus_addr = start;
330 if (request_mem_region(start, 0x1000, "aic7xxx") == 0)
331 error = ENOMEM;
332 if (error == 0) {
333 *maddr = ioremap_nocache(start, 256);
334 if (*maddr == NULL) {
335 error = ENOMEM;
336 release_mem_region(start, 0x1000);
337 }
338 }
339 } else
340 error = ENOMEM;
341 return (error);
342}
343
344int
345ahc_pci_map_registers(struct ahc_softc *ahc)
346{
347 uint32_t command;
348 u_long base;
349 uint8_t __iomem *maddr;
350 int error;
351
352
353
354
355 command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, 4);
356 command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN);
357 base = 0;
358 maddr = NULL;
359 error = ahc_linux_pci_reserve_mem_region(ahc, &base, &maddr);
360 if (error == 0) {
361 ahc->platform_data->mem_busaddr = base;
362 ahc->tag = BUS_SPACE_MEMIO;
363 ahc->bsh.maddr = maddr;
364 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND,
365 command | PCIM_CMD_MEMEN, 4);
366
367
368
369
370
371 if (ahc_pci_test_register_access(ahc) != 0) {
372
373 printf("aic7xxx: PCI Device %d:%d:%d "
374 "failed memory mapped test. Using PIO.\n",
375 ahc_get_pci_bus(ahc->dev_softc),
376 ahc_get_pci_slot(ahc->dev_softc),
377 ahc_get_pci_function(ahc->dev_softc));
378 iounmap(maddr);
379 release_mem_region(ahc->platform_data->mem_busaddr,
380 0x1000);
381 ahc->bsh.maddr = NULL;
382 maddr = NULL;
383 } else
384 command |= PCIM_CMD_MEMEN;
385 } else {
386 printf("aic7xxx: PCI%d:%d:%d MEM region 0x%lx "
387 "unavailable. Cannot memory map device.\n",
388 ahc_get_pci_bus(ahc->dev_softc),
389 ahc_get_pci_slot(ahc->dev_softc),
390 ahc_get_pci_function(ahc->dev_softc),
391 base);
392 }
393
394
395
396
397 if (maddr == NULL) {
398
399 error = ahc_linux_pci_reserve_io_region(ahc, &base);
400 if (error == 0) {
401 ahc->tag = BUS_SPACE_PIO;
402 ahc->bsh.ioport = base;
403 command |= PCIM_CMD_PORTEN;
404 } else {
405 printf("aic7xxx: PCI%d:%d:%d IO region 0x%lx[0..255] "
406 "unavailable. Cannot map device.\n",
407 ahc_get_pci_bus(ahc->dev_softc),
408 ahc_get_pci_slot(ahc->dev_softc),
409 ahc_get_pci_function(ahc->dev_softc),
410 base);
411 }
412 }
413 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, 4);
414 return (error);
415}
416
417int
418ahc_pci_map_int(struct ahc_softc *ahc)
419{
420 int error;
421
422 error = request_irq(ahc->dev_softc->irq, ahc_linux_isr,
423 IRQF_SHARED, "aic7xxx", ahc);
424 if (error == 0)
425 ahc->platform_data->irq = ahc->dev_softc->irq;
426
427 return (-error);
428}
429
430
