Commit | Line | Data |
---|---|---|
126bb03b AC |
1 | #include <linux/sched.h> |
2 | #include <linux/errno.h> | |
3 | #include <linux/freezer.h> | |
4 | #include <linux/module.h> | |
5 | #include <linux/init.h> | |
6 | #include <linux/slab.h> | |
7 | #include <linux/kthread.h> | |
8 | #include <linux/mutex.h> | |
9 | #include <linux/utsname.h> | |
10 | ||
11 | #include <scsi/scsi.h> | |
12 | #include <scsi/scsi_cmnd.h> | |
13 | #include <scsi/scsi_device.h> | |
14 | ||
15 | #include "usb.h" | |
16 | #include "scsiglue.h" | |
d8aba9d5 | 17 | #include "smil.h" |
126bb03b AC |
18 | #include "transport.h" |
19 | ||
20 | /* Some informational data */ | |
21 | MODULE_AUTHOR("Domao"); | |
22 | MODULE_DESCRIPTION("ENE USB Mass Storage driver for Linux"); | |
23 | MODULE_LICENSE("GPL"); | |
24 | ||
a8718692 AC |
25 | static unsigned int delay_use = 1; |
26 | ||
126bb03b AC |
27 | static struct usb_device_id eucr_usb_ids [] = { |
28 | { USB_DEVICE(0x058f, 0x6366) }, | |
29 | { USB_DEVICE(0x0cf2, 0x6230) }, | |
30 | { USB_DEVICE(0x0cf2, 0x6250) }, | |
31 | { } /* Terminating entry */ | |
32 | }; | |
33 | MODULE_DEVICE_TABLE (usb, eucr_usb_ids); | |
34 | ||
35 | ||
e23f773e | 36 | #ifdef CONFIG_PM |
126bb03b | 37 | |
d8aba9d5 | 38 | static int eucr_suspend(struct usb_interface *iface, pm_message_t message) |
126bb03b AC |
39 | { |
40 | struct us_data *us = usb_get_intfdata(iface); | |
871f8477 | 41 | pr_info("--- eucr_suspend ---\n"); |
126bb03b AC |
42 | /* Wait until no command is running */ |
43 | mutex_lock(&us->dev_mutex); | |
44 | ||
126bb03b AC |
45 | if (us->suspend_resume_hook) |
46 | (us->suspend_resume_hook)(us, US_SUSPEND); | |
47 | ||
126bb03b AC |
48 | mutex_unlock(&us->dev_mutex); |
49 | return 0; | |
50 | } | |
126bb03b | 51 | |
d8aba9d5 | 52 | static int eucr_resume(struct usb_interface *iface) |
126bb03b AC |
53 | { |
54 | BYTE tmp = 0; | |
55 | ||
56 | struct us_data *us = usb_get_intfdata(iface); | |
871f8477 | 57 | pr_info("--- eucr_resume---\n"); |
126bb03b AC |
58 | mutex_lock(&us->dev_mutex); |
59 | ||
126bb03b AC |
60 | if (us->suspend_resume_hook) |
61 | (us->suspend_resume_hook)(us, US_RESUME); | |
62 | ||
63 | ||
64 | mutex_unlock(&us->dev_mutex); | |
65 | ||
531c3361 KK |
66 | us->Power_IsResum = true; |
67 | ||
68 | us->SM_Status = *(PSM_STATUS)&tmp; | |
2c392daf | 69 | |
126bb03b AC |
70 | return 0; |
71 | } | |
531c3361 | 72 | |
d8aba9d5 | 73 | static int eucr_reset_resume(struct usb_interface *iface) |
126bb03b AC |
74 | { |
75 | BYTE tmp = 0; | |
76 | struct us_data *us = usb_get_intfdata(iface); | |
77 | ||
871f8477 | 78 | pr_info("--- eucr_reset_resume---\n"); |
126bb03b AC |
79 | |
80 | /* Report the reset to the SCSI core */ | |
81 | usb_stor_report_bus_reset(us); | |
82 | ||
531c3361 KK |
83 | /* |
84 | * FIXME: Notify the subdrivers that they need to reinitialize | |
85 | * the device | |
86 | */ | |
87 | ||
126bb03b | 88 | us->Power_IsResum = true; |
531c3361 KK |
89 | |
90 | us->SM_Status = *(PSM_STATUS)&tmp; | |
91 | ||
126bb03b AC |
92 | return 0; |
93 | } | |
126bb03b | 94 | |
e23f773e RD |
95 | #else |
96 | ||
97 | #define eucr_suspend NULL | |
98 | #define eucr_resume NULL | |
99 | #define eucr_reset_resume NULL | |
100 | ||
101 | #endif | |
102 | ||
126bb03b AC |
103 | static int eucr_pre_reset(struct usb_interface *iface) |
104 | { | |
105 | struct us_data *us = usb_get_intfdata(iface); | |
106 | ||
871f8477 | 107 | pr_info("usb --- eucr_pre_reset\n"); |
126bb03b AC |
108 | |
109 | /* Make sure no command runs during the reset */ | |
110 | mutex_lock(&us->dev_mutex); | |
111 | return 0; | |
112 | } | |
113 | ||
126bb03b AC |
114 | static int eucr_post_reset(struct usb_interface *iface) |
115 | { | |
116 | struct us_data *us = usb_get_intfdata(iface); | |
117 | ||
871f8477 | 118 | pr_info("usb --- eucr_post_reset\n"); |
126bb03b AC |
119 | |
120 | /* Report the reset to the SCSI core */ | |
121 | usb_stor_report_bus_reset(us); | |
122 | ||
123 | mutex_unlock(&us->dev_mutex); | |
124 | return 0; | |
125 | } | |
126 | ||
126bb03b AC |
127 | void fill_inquiry_response(struct us_data *us, unsigned char *data, unsigned int data_len) |
128 | { | |
871f8477 | 129 | pr_info("usb --- fill_inquiry_response\n"); |
531c3361 | 130 | if (data_len < 36) /* You lose. */ |
126bb03b AC |
131 | return; |
132 | ||
b466eb5e | 133 | if (data[0]&0x20) { |
126bb03b | 134 | memset(data+8,0,28); |
b466eb5e | 135 | } else { |
126bb03b AC |
136 | u16 bcdDevice = le16_to_cpu(us->pusb_dev->descriptor.bcdDevice); |
137 | memcpy(data+8, us->unusual_dev->vendorName, | |
138 | strlen(us->unusual_dev->vendorName) > 8 ? 8 : | |
139 | strlen(us->unusual_dev->vendorName)); | |
140 | memcpy(data+16, us->unusual_dev->productName, | |
141 | strlen(us->unusual_dev->productName) > 16 ? 16 : | |
142 | strlen(us->unusual_dev->productName)); | |
143 | data[32] = 0x30 + ((bcdDevice>>12) & 0x0F); | |
144 | data[33] = 0x30 + ((bcdDevice>>8) & 0x0F); | |
145 | data[34] = 0x30 + ((bcdDevice>>4) & 0x0F); | |
146 | data[35] = 0x30 + ((bcdDevice) & 0x0F); | |
147 | } | |
148 | usb_stor_set_xfer_buf(us, data, data_len, us->srb, TO_XFER_BUF); | |
149 | } | |
150 | ||
126bb03b AC |
151 | static int usb_stor_control_thread(void * __us) |
152 | { | |
153 | struct us_data *us = (struct us_data *)__us; | |
154 | struct Scsi_Host *host = us_to_host(us); | |
155 | ||
871f8477 | 156 | pr_info("usb --- usb_stor_control_thread\n"); |
b466eb5e | 157 | for (;;) { |
126bb03b AC |
158 | if (wait_for_completion_interruptible(&us->cmnd_ready)) |
159 | break; | |
531c3361 | 160 | |
126bb03b AC |
161 | /* lock the device pointers */ |
162 | mutex_lock(&(us->dev_mutex)); | |
163 | ||
164 | /* if the device has disconnected, we are free to exit */ | |
a8718692 | 165 | if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { |
126bb03b AC |
166 | mutex_unlock(&us->dev_mutex); |
167 | break; | |
a8718692 | 168 | } |
126bb03b AC |
169 | |
170 | /* lock access to the state */ | |
171 | scsi_lock(host); | |
172 | ||
173 | /* When we are called with no command pending, we're done */ | |
b466eb5e | 174 | if (us->srb == NULL) { |
126bb03b AC |
175 | scsi_unlock(host); |
176 | mutex_unlock(&us->dev_mutex); | |
126bb03b AC |
177 | break; |
178 | } | |
179 | ||
180 | /* has the command timed out *already* ? */ | |
b466eb5e | 181 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
126bb03b AC |
182 | us->srb->result = DID_ABORT << 16; |
183 | goto SkipForAbort; | |
184 | } | |
185 | ||
186 | scsi_unlock(host); | |
187 | ||
b466eb5e | 188 | if (us->srb->sc_data_direction == DMA_BIDIRECTIONAL) { |
126bb03b | 189 | us->srb->result = DID_ERROR << 16; |
b466eb5e KK |
190 | } else if (us->srb->device->id |
191 | && !(us->fflags & US_FL_SCM_MULT_TARG)) { | |
126bb03b | 192 | us->srb->result = DID_BAD_TARGET << 16; |
b466eb5e | 193 | } else if (us->srb->device->lun > us->max_lun) { |
126bb03b | 194 | us->srb->result = DID_BAD_TARGET << 16; |
b466eb5e KK |
195 | } else if ((us->srb->cmnd[0] == INQUIRY) |
196 | && (us->fflags & US_FL_FIX_INQUIRY)) { | |
126bb03b AC |
197 | unsigned char data_ptr[36] = {0x00, 0x80, 0x02, 0x02, 0x1F, 0x00, 0x00, 0x00}; |
198 | ||
199 | fill_inquiry_response(us, data_ptr, 36); | |
200 | us->srb->result = SAM_STAT_GOOD; | |
b466eb5e | 201 | } else { |
126bb03b AC |
202 | us->proto_handler(us->srb, us); |
203 | } | |
204 | ||
205 | /* lock access to the state */ | |
206 | scsi_lock(host); | |
207 | ||
208 | /* indicate that the command is done */ | |
b466eb5e | 209 | if (us->srb->result != DID_ABORT << 16) { |
126bb03b | 210 | us->srb->scsi_done(us->srb); |
b466eb5e | 211 | } else { |
126bb03b | 212 | SkipForAbort: |
871f8477 | 213 | pr_info("scsi command aborted\n"); |
126bb03b AC |
214 | } |
215 | ||
b466eb5e | 216 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
126bb03b AC |
217 | complete(&(us->notify)); |
218 | ||
219 | /* Allow USB transfers to resume */ | |
220 | clear_bit(US_FLIDX_ABORTING, &us->dflags); | |
221 | clear_bit(US_FLIDX_TIMED_OUT, &us->dflags); | |
222 | } | |
223 | ||
224 | /* finished working on this command */ | |
225 | us->srb = NULL; | |
226 | scsi_unlock(host); | |
227 | ||
228 | /* unlock the device pointers */ | |
229 | mutex_unlock(&us->dev_mutex); | |
230 | } /* for (;;) */ | |
231 | ||
232 | /* Wait until we are told to stop */ | |
b466eb5e | 233 | for (;;) { |
126bb03b AC |
234 | set_current_state(TASK_INTERRUPTIBLE); |
235 | if (kthread_should_stop()) | |
236 | break; | |
237 | schedule(); | |
238 | } | |
239 | __set_current_state(TASK_RUNNING); | |
240 | return 0; | |
2c392daf | 241 | } |
126bb03b | 242 | |
126bb03b AC |
243 | static int associate_dev(struct us_data *us, struct usb_interface *intf) |
244 | { | |
871f8477 | 245 | pr_info("usb --- associate_dev\n"); |
126bb03b AC |
246 | |
247 | /* Fill in the device-related fields */ | |
248 | us->pusb_dev = interface_to_usbdev(intf); | |
249 | us->pusb_intf = intf; | |
250 | us->ifnum = intf->cur_altsetting->desc.bInterfaceNumber; | |
251 | ||
252 | /* Store our private data in the interface */ | |
253 | usb_set_intfdata(intf, us); | |
254 | ||
255 | /* Allocate the device-related DMA-mapped buffers */ | |
256 | us->cr = usb_alloc_coherent(us->pusb_dev, sizeof(*us->cr), GFP_KERNEL, &us->cr_dma); | |
b466eb5e | 257 | if (!us->cr) { |
871f8477 | 258 | pr_info("usb_ctrlrequest allocation failed\n"); |
126bb03b AC |
259 | return -ENOMEM; |
260 | } | |
261 | ||
262 | us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE, GFP_KERNEL, &us->iobuf_dma); | |
b466eb5e | 263 | if (!us->iobuf) { |
871f8477 | 264 | pr_info("I/O buffer allocation failed\n"); |
126bb03b AC |
265 | return -ENOMEM; |
266 | } | |
267 | ||
268 | us->sensebuf = kmalloc(US_SENSE_SIZE, GFP_KERNEL); | |
78110bb8 | 269 | if (!us->sensebuf) |
126bb03b | 270 | return -ENOMEM; |
78110bb8 | 271 | |
126bb03b AC |
272 | return 0; |
273 | } | |
274 | ||
126bb03b AC |
275 | static int get_device_info(struct us_data *us, const struct usb_device_id *id) |
276 | { | |
277 | struct usb_device *dev = us->pusb_dev; | |
278 | struct usb_interface_descriptor *idesc = &us->pusb_intf->cur_altsetting->desc; | |
279 | ||
871f8477 | 280 | pr_info("usb --- get_device_info\n"); |
126bb03b AC |
281 | |
282 | us->subclass = idesc->bInterfaceSubClass; | |
283 | us->protocol = idesc->bInterfaceProtocol; | |
f61870ee | 284 | us->fflags = id->driver_info; |
126bb03b AC |
285 | us->Power_IsResum = false; |
286 | ||
b466eb5e | 287 | if (us->fflags & US_FL_IGNORE_DEVICE) { |
871f8477 | 288 | pr_info("device ignored\n"); |
126bb03b AC |
289 | return -ENODEV; |
290 | } | |
291 | ||
292 | if (dev->speed != USB_SPEED_HIGH) | |
293 | us->fflags &= ~US_FL_GO_SLOW; | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
126bb03b AC |
298 | static int get_transport(struct us_data *us) |
299 | { | |
871f8477 | 300 | pr_info("usb --- get_transport\n"); |
126bb03b | 301 | switch (us->protocol) { |
bceadddd | 302 | case USB_PR_BULK: |
126bb03b AC |
303 | us->transport_name = "Bulk"; |
304 | us->transport = usb_stor_Bulk_transport; | |
305 | us->transport_reset = usb_stor_Bulk_reset; | |
306 | break; | |
307 | ||
308 | default: | |
309 | return -EIO; | |
310 | } | |
126bb03b AC |
311 | |
312 | /* fix for single-lun devices */ | |
313 | if (us->fflags & US_FL_SINGLE_LUN) | |
314 | us->max_lun = 0; | |
315 | return 0; | |
316 | } | |
317 | ||
126bb03b AC |
318 | static int get_protocol(struct us_data *us) |
319 | { | |
871f8477 CYC |
320 | pr_info("usb --- get_protocol\n"); |
321 | pr_info("us->pusb_dev->descriptor.idVendor = %x\n", | |
322 | us->pusb_dev->descriptor.idVendor); | |
323 | pr_info("us->pusb_dev->descriptor.idProduct = %x\n", | |
324 | us->pusb_dev->descriptor.idProduct); | |
126bb03b | 325 | switch (us->subclass) { |
bceadddd | 326 | case USB_SC_SCSI: |
126bb03b | 327 | us->protocol_name = "Transparent SCSI"; |
b466eb5e KK |
328 | if ((us->pusb_dev->descriptor.idVendor == 0x0CF2) |
329 | && (us->pusb_dev->descriptor.idProduct == 0x6250)) | |
126bb03b AC |
330 | us->proto_handler = ENE_stor_invoke_transport; |
331 | else | |
332 | us->proto_handler = usb_stor_invoke_transport; | |
333 | break; | |
334 | ||
335 | default: | |
336 | return -EIO; | |
337 | } | |
126bb03b AC |
338 | return 0; |
339 | } | |
340 | ||
126bb03b AC |
341 | static int get_pipes(struct us_data *us) |
342 | { | |
343 | struct usb_host_interface *altsetting = us->pusb_intf->cur_altsetting; | |
344 | int i; | |
345 | struct usb_endpoint_descriptor *ep; | |
346 | struct usb_endpoint_descriptor *ep_in = NULL; | |
347 | struct usb_endpoint_descriptor *ep_out = NULL; | |
348 | struct usb_endpoint_descriptor *ep_int = NULL; | |
349 | ||
871f8477 | 350 | pr_info("usb --- get_pipes\n"); |
126bb03b | 351 | |
b466eb5e | 352 | for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { |
126bb03b AC |
353 | ep = &altsetting->endpoint[i].desc; |
354 | ||
b466eb5e KK |
355 | if (usb_endpoint_xfer_bulk(ep)) { |
356 | if (usb_endpoint_dir_in(ep)) { | |
126bb03b AC |
357 | if (!ep_in) |
358 | ep_in = ep; | |
b466eb5e | 359 | } else { |
126bb03b AC |
360 | if (!ep_out) |
361 | ep_out = ep; | |
362 | } | |
b466eb5e | 363 | } else if (usb_endpoint_is_int_in(ep)) { |
126bb03b AC |
364 | if (!ep_int) |
365 | ep_int = ep; | |
366 | } | |
367 | } | |
368 | ||
b466eb5e | 369 | if (!ep_in || !ep_out || (us->protocol == USB_PR_CBI && !ep_int)) { |
871f8477 | 370 | pr_info("Endpoint sanity check failed! Rejecting dev.\n"); |
126bb03b AC |
371 | return -EIO; |
372 | } | |
373 | ||
374 | /* Calculate and store the pipe values */ | |
375 | us->send_ctrl_pipe = usb_sndctrlpipe(us->pusb_dev, 0); | |
376 | us->recv_ctrl_pipe = usb_rcvctrlpipe(us->pusb_dev, 0); | |
377 | us->send_bulk_pipe = usb_sndbulkpipe(us->pusb_dev, ep_out->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
378 | us->recv_bulk_pipe = usb_rcvbulkpipe(us->pusb_dev, ep_in->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
b466eb5e | 379 | if (ep_int) { |
126bb03b AC |
380 | us->recv_intr_pipe = usb_rcvintpipe(us->pusb_dev, ep_int->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
381 | us->ep_bInterval = ep_int->bInterval; | |
382 | } | |
383 | return 0; | |
384 | } | |
385 | ||
126bb03b AC |
386 | static int usb_stor_acquire_resources(struct us_data *us) |
387 | { | |
388 | struct task_struct *th; | |
389 | ||
871f8477 | 390 | pr_info("usb --- usb_stor_acquire_resources\n"); |
126bb03b | 391 | us->current_urb = usb_alloc_urb(0, GFP_KERNEL); |
b466eb5e | 392 | if (!us->current_urb) { |
871f8477 | 393 | pr_info("URB allocation failed\n"); |
126bb03b AC |
394 | return -ENOMEM; |
395 | } | |
396 | ||
397 | /* Start up our control thread */ | |
398 | th = kthread_run(usb_stor_control_thread, us, "eucr-storage"); | |
b466eb5e | 399 | if (IS_ERR(th)) { |
871f8477 | 400 | pr_info("Unable to start control thread\n"); |
126bb03b AC |
401 | return PTR_ERR(th); |
402 | } | |
403 | us->ctl_thread = th; | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
126bb03b AC |
408 | static void usb_stor_release_resources(struct us_data *us) |
409 | { | |
871f8477 | 410 | pr_info("usb --- usb_stor_release_resources\n"); |
126bb03b AC |
411 | |
412 | SM_FreeMem(); | |
413 | ||
414 | complete(&us->cmnd_ready); | |
415 | if (us->ctl_thread) | |
416 | kthread_stop(us->ctl_thread); | |
417 | ||
418 | /* Call the destructor routine, if it exists */ | |
b466eb5e | 419 | if (us->extra_destructor) { |
871f8477 | 420 | pr_info("-- calling extra_destructor()\n"); |
126bb03b AC |
421 | us->extra_destructor(us->extra); |
422 | } | |
423 | ||
424 | /* Free the extra data and the URB */ | |
425 | kfree(us->extra); | |
426 | usb_free_urb(us->current_urb); | |
427 | } | |
428 | ||
126bb03b AC |
429 | static void dissociate_dev(struct us_data *us) |
430 | { | |
871f8477 | 431 | pr_info("usb --- dissociate_dev\n"); |
126bb03b AC |
432 | |
433 | kfree(us->sensebuf); | |
434 | ||
435 | /* Free the device-related DMA-mapped buffers */ | |
436 | if (us->cr) | |
437 | usb_free_coherent(us->pusb_dev, sizeof(*us->cr), us->cr, us->cr_dma); | |
438 | if (us->iobuf) | |
439 | usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma); | |
440 | ||
441 | /* Remove our private data from the interface */ | |
442 | usb_set_intfdata(us->pusb_intf, NULL); | |
443 | } | |
444 | ||
126bb03b AC |
445 | static void quiesce_and_remove_host(struct us_data *us) |
446 | { | |
447 | struct Scsi_Host *host = us_to_host(us); | |
448 | ||
871f8477 | 449 | pr_info("usb --- quiesce_and_remove_host\n"); |
126bb03b AC |
450 | |
451 | /* If the device is really gone, cut short reset delays */ | |
452 | if (us->pusb_dev->state == USB_STATE_NOTATTACHED) | |
453 | set_bit(US_FLIDX_DISCONNECTING, &us->dflags); | |
454 | ||
531c3361 KK |
455 | /* |
456 | * Prevent SCSI-scanning (if it hasn't started yet) | |
126bb03b AC |
457 | * and wait for the SCSI-scanning thread to stop. |
458 | */ | |
459 | set_bit(US_FLIDX_DONT_SCAN, &us->dflags); | |
460 | wake_up(&us->delay_wait); | |
461 | wait_for_completion(&us->scanning_done); | |
462 | ||
531c3361 KK |
463 | /* |
464 | * Removing the host will perform an orderly shutdown: caches | |
126bb03b AC |
465 | * synchronized, disks spun down, etc. |
466 | */ | |
467 | scsi_remove_host(host); | |
468 | ||
531c3361 KK |
469 | /* |
470 | * Prevent any new commands from being accepted and cut short | |
126bb03b AC |
471 | * reset delays. |
472 | */ | |
473 | scsi_lock(host); | |
474 | set_bit(US_FLIDX_DISCONNECTING, &us->dflags); | |
475 | scsi_unlock(host); | |
476 | wake_up(&us->delay_wait); | |
477 | } | |
478 | ||
126bb03b AC |
479 | static void release_everything(struct us_data *us) |
480 | { | |
871f8477 | 481 | pr_info("usb --- release_everything\n"); |
126bb03b AC |
482 | |
483 | usb_stor_release_resources(us); | |
484 | dissociate_dev(us); | |
485 | scsi_host_put(us_to_host(us)); | |
486 | } | |
487 | ||
126bb03b AC |
488 | static int usb_stor_scan_thread(void * __us) |
489 | { | |
490 | struct us_data *us = (struct us_data *)__us; | |
491 | ||
871f8477 CYC |
492 | pr_info("usb --- usb_stor_scan_thread\n"); |
493 | pr_info("EUCR : device found at %d\n", us->pusb_dev->devnum); | |
126bb03b | 494 | |
a8718692 AC |
495 | set_freezable(); |
496 | /* Wait for the timeout to expire or for a disconnect */ | |
497 | if (delay_use > 0) { | |
498 | wait_event_freezable_timeout(us->delay_wait, | |
499 | test_bit(US_FLIDX_DONT_SCAN, &us->dflags), | |
500 | delay_use * HZ); | |
501 | } | |
126bb03b AC |
502 | |
503 | /* If the device is still connected, perform the scanning */ | |
b466eb5e | 504 | if (!test_bit(US_FLIDX_DONT_SCAN, &us->dflags)) { |
126bb03b | 505 | /* For bulk-only devices, determine the max LUN value */ |
b466eb5e KK |
506 | if (us->protocol == USB_PR_BULK |
507 | && !(us->fflags & US_FL_SINGLE_LUN)) { | |
126bb03b AC |
508 | mutex_lock(&us->dev_mutex); |
509 | us->max_lun = usb_stor_Bulk_max_lun(us); | |
510 | mutex_unlock(&us->dev_mutex); | |
511 | } | |
512 | scsi_scan_host(us_to_host(us)); | |
871f8477 | 513 | pr_info("EUCR : device scan complete\n"); |
126bb03b AC |
514 | } |
515 | complete_and_exit(&us->scanning_done, 0); | |
516 | } | |
517 | ||
126bb03b AC |
518 | static int eucr_probe(struct usb_interface *intf, const struct usb_device_id *id) |
519 | { | |
520 | struct Scsi_Host *host; | |
521 | struct us_data *us; | |
522 | int result; | |
41e568d1 | 523 | BYTE MiscReg03 = 0; |
126bb03b AC |
524 | struct task_struct *th; |
525 | ||
871f8477 | 526 | pr_info("usb --- eucr_probe\n"); |
126bb03b AC |
527 | |
528 | host = scsi_host_alloc(&usb_stor_host_template, sizeof(*us)); | |
b466eb5e | 529 | if (!host) { |
871f8477 | 530 | pr_info("Unable to allocate the scsi host\n"); |
126bb03b AC |
531 | return -ENOMEM; |
532 | } | |
533 | ||
534 | /* Allow 16-byte CDBs and thus > 2TB */ | |
535 | host->max_cmd_len = 16; | |
536 | us = host_to_us(host); | |
537 | memset(us, 0, sizeof(struct us_data)); | |
538 | mutex_init(&(us->dev_mutex)); | |
539 | init_completion(&us->cmnd_ready); | |
540 | init_completion(&(us->notify)); | |
541 | init_waitqueue_head(&us->delay_wait); | |
542 | init_completion(&us->scanning_done); | |
543 | ||
544 | /* Associate the us_data structure with the USB device */ | |
545 | result = associate_dev(us, intf); | |
546 | if (result) | |
547 | goto BadDevice; | |
548 | ||
549 | /* Get Device info */ | |
550 | result = get_device_info(us, id); | |
551 | if (result) | |
552 | goto BadDevice; | |
553 | ||
554 | /* Get the transport, protocol, and pipe settings */ | |
555 | result = get_transport(us); | |
556 | if (result) | |
557 | goto BadDevice; | |
558 | result = get_protocol(us); | |
559 | if (result) | |
560 | goto BadDevice; | |
561 | result = get_pipes(us); | |
562 | if (result) | |
563 | goto BadDevice; | |
564 | ||
565 | /* Acquire all the other resources and add the host */ | |
566 | result = usb_stor_acquire_resources(us); | |
567 | if (result) | |
568 | goto BadDevice; | |
569 | ||
570 | result = scsi_add_host(host, &intf->dev); | |
b466eb5e | 571 | if (result) { |
871f8477 | 572 | pr_info("Unable to add the scsi host\n"); |
126bb03b AC |
573 | goto BadDevice; |
574 | } | |
575 | ||
576 | /* Start up the thread for delayed SCSI-device scanning */ | |
577 | th = kthread_create(usb_stor_scan_thread, us, "eucr-stor-scan"); | |
7d51b77a | 578 | if (IS_ERR(th)) { |
871f8477 | 579 | pr_info("Unable to start the device-scanning thread\n"); |
126bb03b AC |
580 | complete(&us->scanning_done); |
581 | quiesce_and_remove_host(us); | |
582 | result = PTR_ERR(th); | |
583 | goto BadDevice; | |
584 | } | |
585 | wake_up_process(th); | |
41e568d1 | 586 | |
587 | /* probe card type */ | |
588 | result = ENE_Read_BYTE(us, REG_CARD_STATUS, &MiscReg03); | |
589 | if (result != USB_STOR_XFER_GOOD) { | |
590 | result = USB_STOR_TRANSPORT_ERROR; | |
591 | quiesce_and_remove_host(us); | |
592 | goto BadDevice; | |
593 | } | |
594 | ||
595 | if (!(MiscReg03 & 0x02)) { | |
596 | result = -ENODEV; | |
597 | quiesce_and_remove_host(us); | |
871f8477 | 598 | pr_info("keucr: The driver only supports SM/MS card.\ |
41e568d1 | 599 | To use SD card, \ |
600 | please build driver/usb/storage/ums-eneub6250.ko\n"); | |
601 | goto BadDevice; | |
602 | } | |
603 | ||
126bb03b AC |
604 | return 0; |
605 | ||
606 | /* We come here if there are any problems */ | |
607 | BadDevice: | |
871f8477 | 608 | pr_info("usb --- eucr_probe failed\n"); |
126bb03b AC |
609 | release_everything(us); |
610 | return result; | |
611 | } | |
612 | ||
126bb03b AC |
613 | static void eucr_disconnect(struct usb_interface *intf) |
614 | { | |
615 | struct us_data *us = usb_get_intfdata(intf); | |
616 | ||
871f8477 | 617 | pr_info("usb --- eucr_disconnect\n"); |
126bb03b AC |
618 | quiesce_and_remove_host(us); |
619 | release_everything(us); | |
620 | } | |
621 | ||
531c3361 | 622 | /* Initialization and registration */ |
126bb03b AC |
623 | static struct usb_driver usb_storage_driver = { |
624 | .name = "eucr", | |
625 | .probe = eucr_probe, | |
626 | .suspend = eucr_suspend, | |
627 | .resume = eucr_resume, | |
628 | .reset_resume = eucr_reset_resume, | |
629 | .disconnect = eucr_disconnect, | |
630 | .pre_reset = eucr_pre_reset, | |
631 | .post_reset = eucr_post_reset, | |
632 | .id_table = eucr_usb_ids, | |
633 | .soft_unbind = 1, | |
634 | }; | |
635 | ||
bac2c126 | 636 | module_usb_driver(usb_storage_driver); |