Commit | Line | Data |
---|---|---|
719f82d3 | 1 | /******************************************************************************* |
719f82d3 | 2 | AudioScience HPI driver |
f9a376c3 EB |
3 | Common Linux HPI ioctl and module probe/remove functions |
4 | ||
5 | Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com> | |
719f82d3 EB |
6 | |
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of version 2 of the GNU General Public License as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
719f82d3 EB |
16 | *******************************************************************************/ |
17 | #define SOURCEFILE_NAME "hpioctl.c" | |
18 | ||
19 | #include "hpi_internal.h" | |
f6baaec2 | 20 | #include "hpi_version.h" |
719f82d3 EB |
21 | #include "hpimsginit.h" |
22 | #include "hpidebug.h" | |
23 | #include "hpimsgx.h" | |
24 | #include "hpioctl.h" | |
6d0b898e | 25 | #include "hpicmn.h" |
719f82d3 EB |
26 | |
27 | #include <linux/fs.h> | |
f9a376c3 | 28 | #include <linux/interrupt.h> |
719f82d3 EB |
29 | #include <linux/slab.h> |
30 | #include <linux/moduleparam.h> | |
976412fb | 31 | #include <linux/uaccess.h> |
3285ea10 | 32 | #include <linux/pci.h> |
719f82d3 | 33 | #include <linux/stringify.h> |
da155d5b | 34 | #include <linux/module.h> |
d6472302 | 35 | #include <linux/vmalloc.h> |
719f82d3 EB |
36 | |
37 | #ifdef MODULE_FIRMWARE | |
38 | MODULE_FIRMWARE("asihpi/dsp5000.bin"); | |
39 | MODULE_FIRMWARE("asihpi/dsp6200.bin"); | |
40 | MODULE_FIRMWARE("asihpi/dsp6205.bin"); | |
41 | MODULE_FIRMWARE("asihpi/dsp6400.bin"); | |
42 | MODULE_FIRMWARE("asihpi/dsp6600.bin"); | |
43 | MODULE_FIRMWARE("asihpi/dsp8700.bin"); | |
44 | MODULE_FIRMWARE("asihpi/dsp8900.bin"); | |
45 | #endif | |
46 | ||
47 | static int prealloc_stream_buf; | |
48 | module_param(prealloc_stream_buf, int, S_IRUGO); | |
49 | MODULE_PARM_DESC(prealloc_stream_buf, | |
3285ea10 | 50 | "Preallocate size for per-adapter stream buffer"); |
719f82d3 EB |
51 | |
52 | /* Allow the debug level to be changed after module load. | |
53 | E.g. echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel | |
54 | */ | |
55 | module_param(hpi_debug_level, int, S_IRUGO | S_IWUSR); | |
56 | MODULE_PARM_DESC(hpi_debug_level, "debug verbosity 0..5"); | |
57 | ||
58 | /* List of adapters found */ | |
59 | static struct hpi_adapter adapters[HPI_MAX_ADAPTERS]; | |
60 | ||
61 | /* Wrapper function to HPI_Message to enable dumping of the | |
62 | message and response types. | |
63 | */ | |
64 | static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr, | |
65 | struct file *file) | |
66 | { | |
7036b92d | 67 | if ((phm->adapter_index >= HPI_MAX_ADAPTERS) |
719f82d3 EB |
68 | && (phm->object != HPI_OBJ_SUBSYSTEM)) |
69 | phr->error = HPI_ERROR_INVALID_OBJ_INDEX; | |
70 | else | |
71 | hpi_send_recv_ex(phm, phr, file); | |
72 | } | |
73 | ||
74 | /* This is called from hpifunc.c functions, called by ALSA | |
75 | * (or other kernel process) In this case there is no file descriptor | |
76 | * available for the message cache code | |
77 | */ | |
78 | void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr) | |
79 | { | |
80 | hpi_send_recv_f(phm, phr, HOWNER_KERNEL); | |
81 | } | |
82 | ||
83 | EXPORT_SYMBOL(hpi_send_recv); | |
84 | /* for radio-asihpi */ | |
85 | ||
86 | int asihpi_hpi_release(struct file *file) | |
87 | { | |
88 | struct hpi_message hm; | |
89 | struct hpi_response hr; | |
90 | ||
91 | /* HPI_DEBUG_LOG(INFO,"hpi_release file %p, pid %d\n", file, current->pid); */ | |
92 | /* close the subsystem just in case the application forgot to. */ | |
93 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, | |
94 | HPI_SUBSYS_CLOSE); | |
95 | hpi_send_recv_ex(&hm, &hr, file); | |
96 | return 0; | |
97 | } | |
98 | ||
99 | long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
100 | { | |
101 | struct hpi_ioctl_linux __user *phpi_ioctl_data; | |
102 | void __user *puhm; | |
103 | void __user *puhr; | |
104 | union hpi_message_buffer_v1 *hm; | |
105 | union hpi_response_buffer_v1 *hr; | |
106 | u16 res_max_size; | |
107 | u32 uncopied_bytes; | |
719f82d3 EB |
108 | int err = 0; |
109 | ||
110 | if (cmd != HPI_IOCTL_LINUX) | |
111 | return -EINVAL; | |
112 | ||
113 | hm = kmalloc(sizeof(*hm), GFP_KERNEL); | |
114 | hr = kmalloc(sizeof(*hr), GFP_KERNEL); | |
115 | if (!hm || !hr) { | |
116 | err = -ENOMEM; | |
117 | goto out; | |
118 | } | |
119 | ||
120 | phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg; | |
121 | ||
122 | /* Read the message and response pointers from user space. */ | |
3285ea10 EB |
123 | if (get_user(puhm, &phpi_ioctl_data->phm) |
124 | || get_user(puhr, &phpi_ioctl_data->phr)) { | |
ec9d04b2 KV |
125 | err = -EFAULT; |
126 | goto out; | |
127 | } | |
719f82d3 EB |
128 | |
129 | /* Now read the message size and data from user space. */ | |
ec9d04b2 KV |
130 | if (get_user(hm->h.size, (u16 __user *)puhm)) { |
131 | err = -EFAULT; | |
132 | goto out; | |
133 | } | |
719f82d3 EB |
134 | if (hm->h.size > sizeof(*hm)) |
135 | hm->h.size = sizeof(*hm); | |
136 | ||
3285ea10 | 137 | /* printk(KERN_INFO "message size %d\n", hm->h.wSize); */ |
719f82d3 EB |
138 | |
139 | uncopied_bytes = copy_from_user(hm, puhm, hm->h.size); | |
140 | if (uncopied_bytes) { | |
141 | HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); | |
142 | err = -EFAULT; | |
143 | goto out; | |
144 | } | |
145 | ||
ec9d04b2 KV |
146 | if (get_user(res_max_size, (u16 __user *)puhr)) { |
147 | err = -EFAULT; | |
148 | goto out; | |
149 | } | |
719f82d3 EB |
150 | /* printk(KERN_INFO "user response size %d\n", res_max_size); */ |
151 | if (res_max_size < sizeof(struct hpi_response_header)) { | |
152 | HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size); | |
153 | err = -EFAULT; | |
154 | goto out; | |
155 | } | |
156 | ||
0d02e129 EB |
157 | res_max_size = min_t(size_t, res_max_size, sizeof(*hr)); |
158 | ||
6d0b898e EB |
159 | switch (hm->h.function) { |
160 | case HPI_SUBSYS_CREATE_ADAPTER: | |
161 | case HPI_ADAPTER_DELETE: | |
162 | /* Application must not use these functions! */ | |
163 | hr->h.size = sizeof(hr->h); | |
164 | hr->h.error = HPI_ERROR_INVALID_OPERATION; | |
165 | hr->h.function = hm->h.function; | |
166 | uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); | |
167 | if (uncopied_bytes) | |
168 | err = -EFAULT; | |
169 | else | |
170 | err = 0; | |
171 | goto out; | |
172 | } | |
173 | ||
3285ea10 | 174 | hr->h.size = res_max_size; |
719f82d3 | 175 | if (hm->h.object == HPI_OBJ_SUBSYSTEM) { |
6d0b898e | 176 | hpi_send_recv_f(&hm->m0, &hr->r0, file); |
719f82d3 EB |
177 | } else { |
178 | u16 __user *ptr = NULL; | |
179 | u32 size = 0; | |
719f82d3 EB |
180 | /* -1=no data 0=read from user mem, 1=write to user mem */ |
181 | int wrflag = -1; | |
7036b92d | 182 | struct hpi_adapter *pa = NULL; |
08f984c7 | 183 | |
7036b92d | 184 | if (hm->h.adapter_index < ARRAY_SIZE(adapters)) |
08f984c7 | 185 | pa = &adapters[hm->h.adapter_index]; |
719f82d3 | 186 | |
7036b92d | 187 | if (!pa || !pa->adapter || !pa->adapter->type) { |
08f984c7 EB |
188 | hpi_init_response(&hr->r0, hm->h.object, |
189 | hm->h.function, HPI_ERROR_BAD_ADAPTER_NUMBER); | |
719f82d3 EB |
190 | |
191 | uncopied_bytes = | |
192 | copy_to_user(puhr, hr, sizeof(hr->h)); | |
193 | if (uncopied_bytes) | |
194 | err = -EFAULT; | |
195 | else | |
196 | err = 0; | |
197 | goto out; | |
198 | } | |
199 | ||
767cd365 | 200 | if (mutex_lock_interruptible(&pa->mutex)) { |
719f82d3 EB |
201 | err = -EINTR; |
202 | goto out; | |
203 | } | |
204 | ||
205 | /* Dig out any pointers embedded in the message. */ | |
206 | switch (hm->h.function) { | |
207 | case HPI_OSTREAM_WRITE: | |
208 | case HPI_ISTREAM_READ:{ | |
209 | /* Yes, sparse, this is correct. */ | |
210 | ptr = (u16 __user *)hm->m0.u.d.u.data.pb_data; | |
211 | size = hm->m0.u.d.u.data.data_size; | |
212 | ||
213 | /* Allocate buffer according to application request. | |
214 | ?Is it better to alloc/free for the duration | |
215 | of the transaction? | |
216 | */ | |
217 | if (pa->buffer_size < size) { | |
218 | HPI_DEBUG_LOG(DEBUG, | |
3285ea10 | 219 | "Realloc adapter %d stream " |
719f82d3 EB |
220 | "buffer from %zd to %d\n", |
221 | hm->h.adapter_index, | |
222 | pa->buffer_size, size); | |
223 | if (pa->p_buffer) { | |
224 | pa->buffer_size = 0; | |
225 | vfree(pa->p_buffer); | |
226 | } | |
227 | pa->p_buffer = vmalloc(size); | |
228 | if (pa->p_buffer) | |
229 | pa->buffer_size = size; | |
230 | else { | |
231 | HPI_DEBUG_LOG(ERROR, | |
232 | "HPI could not allocate " | |
233 | "stream buffer size %d\n", | |
234 | size); | |
235 | ||
767cd365 | 236 | mutex_unlock(&pa->mutex); |
719f82d3 EB |
237 | err = -EINVAL; |
238 | goto out; | |
239 | } | |
240 | } | |
241 | ||
242 | hm->m0.u.d.u.data.pb_data = pa->p_buffer; | |
243 | if (hm->h.function == HPI_ISTREAM_READ) | |
244 | /* from card, WRITE to user mem */ | |
245 | wrflag = 1; | |
246 | else | |
247 | wrflag = 0; | |
248 | break; | |
249 | } | |
250 | ||
251 | default: | |
252 | size = 0; | |
253 | break; | |
254 | } | |
255 | ||
256 | if (size && (wrflag == 0)) { | |
257 | uncopied_bytes = | |
258 | copy_from_user(pa->p_buffer, ptr, size); | |
259 | if (uncopied_bytes) | |
260 | HPI_DEBUG_LOG(WARNING, | |
3285ea10 | 261 | "Missed %d of %d " |
719f82d3 EB |
262 | "bytes from user\n", uncopied_bytes, |
263 | size); | |
264 | } | |
265 | ||
266 | hpi_send_recv_f(&hm->m0, &hr->r0, file); | |
267 | ||
268 | if (size && (wrflag == 1)) { | |
269 | uncopied_bytes = | |
270 | copy_to_user(ptr, pa->p_buffer, size); | |
271 | if (uncopied_bytes) | |
272 | HPI_DEBUG_LOG(WARNING, | |
3285ea10 | 273 | "Missed %d of %d " "bytes to user\n", |
719f82d3 EB |
274 | uncopied_bytes, size); |
275 | } | |
276 | ||
767cd365 | 277 | mutex_unlock(&pa->mutex); |
719f82d3 EB |
278 | } |
279 | ||
280 | /* on return response size must be set */ | |
281 | /*printk(KERN_INFO "response size %d\n", hr->h.wSize); */ | |
282 | ||
283 | if (!hr->h.size) { | |
284 | HPI_DEBUG_LOG(ERROR, "response zero size\n"); | |
285 | err = -EFAULT; | |
286 | goto out; | |
287 | } | |
288 | ||
289 | if (hr->h.size > res_max_size) { | |
290 | HPI_DEBUG_LOG(ERROR, "response too big %d %d\n", hr->h.size, | |
291 | res_max_size); | |
3285ea10 EB |
292 | hr->h.error = HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL; |
293 | hr->h.specific_error = hr->h.size; | |
294 | hr->h.size = sizeof(hr->h); | |
719f82d3 EB |
295 | } |
296 | ||
297 | uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); | |
298 | if (uncopied_bytes) { | |
299 | HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); | |
300 | err = -EFAULT; | |
301 | goto out; | |
302 | } | |
303 | ||
304 | out: | |
305 | kfree(hm); | |
306 | kfree(hr); | |
307 | return err; | |
308 | } | |
309 | ||
f9a376c3 EB |
310 | static int asihpi_irq_count; |
311 | ||
312 | static irqreturn_t asihpi_isr(int irq, void *dev_id) | |
313 | { | |
314 | struct hpi_adapter *a = dev_id; | |
315 | int handled; | |
316 | ||
317 | if (!a->adapter->irq_query_and_clear) { | |
318 | pr_err("asihpi_isr ASI%04X:%d no handler\n", a->adapter->type, | |
319 | a->adapter->index); | |
320 | return IRQ_NONE; | |
321 | } | |
322 | ||
323 | handled = a->adapter->irq_query_and_clear(a->adapter, 0); | |
324 | ||
325 | if (!handled) | |
326 | return IRQ_NONE; | |
327 | ||
328 | asihpi_irq_count++; | |
329 | /* printk(KERN_INFO "asihpi_isr %d ASI%04X:%d irq handled\n", | |
330 | asihpi_irq_count, a->adapter->type, a->adapter->index); */ | |
331 | ||
332 | if (a->interrupt_callback) | |
333 | a->interrupt_callback(a); | |
334 | ||
335 | return IRQ_HANDLED; | |
336 | } | |
337 | ||
e23e7a14 BP |
338 | int asihpi_adapter_probe(struct pci_dev *pci_dev, |
339 | const struct pci_device_id *pci_id) | |
719f82d3 | 340 | { |
f9a376c3 | 341 | int idx, nm, low_latency_mode = 0, irq_supported = 0; |
7036b92d | 342 | int adapter_index; |
719f82d3 EB |
343 | unsigned int memlen; |
344 | struct hpi_message hm; | |
345 | struct hpi_response hr; | |
346 | struct hpi_adapter adapter; | |
347 | struct hpi_pci pci; | |
348 | ||
349 | memset(&adapter, 0, sizeof(adapter)); | |
350 | ||
3285ea10 EB |
351 | dev_printk(KERN_DEBUG, &pci_dev->dev, |
352 | "probe %04x:%04x,%04x:%04x,%04x\n", pci_dev->vendor, | |
353 | pci_dev->device, pci_dev->subsystem_vendor, | |
719f82d3 EB |
354 | pci_dev->subsystem_device, pci_dev->devfn); |
355 | ||
3285ea10 | 356 | if (pci_enable_device(pci_dev) < 0) { |
4ee3bffc | 357 | dev_err(&pci_dev->dev, |
3285ea10 EB |
358 | "pci_enable_device failed, disabling device\n"); |
359 | return -EIO; | |
360 | } | |
361 | ||
362 | pci_set_master(pci_dev); /* also sets latency timer if < 16 */ | |
363 | ||
719f82d3 EB |
364 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, |
365 | HPI_SUBSYS_CREATE_ADAPTER); | |
366 | hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER, | |
367 | HPI_ERROR_PROCESSING_MESSAGE); | |
368 | ||
3285ea10 | 369 | hm.adapter_index = HPI_ADAPTER_INDEX_INVALID; |
719f82d3 | 370 | |
719f82d3 EB |
371 | nm = HPI_MAX_ADAPTER_MEM_SPACES; |
372 | ||
373 | for (idx = 0; idx < nm; idx++) { | |
42258dab EB |
374 | HPI_DEBUG_LOG(INFO, "resource %d %pR\n", idx, |
375 | &pci_dev->resource[idx]); | |
719f82d3 EB |
376 | |
377 | if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) { | |
378 | memlen = pci_resource_len(pci_dev, idx); | |
7036b92d | 379 | pci.ap_mem_base[idx] = |
719f82d3 EB |
380 | ioremap(pci_resource_start(pci_dev, idx), |
381 | memlen); | |
7036b92d | 382 | if (!pci.ap_mem_base[idx]) { |
719f82d3 EB |
383 | HPI_DEBUG_LOG(ERROR, |
384 | "ioremap failed, aborting\n"); | |
385 | /* unmap previously mapped pci mem space */ | |
386 | goto err; | |
387 | } | |
388 | } | |
719f82d3 EB |
389 | } |
390 | ||
3285ea10 | 391 | pci.pci_dev = pci_dev; |
719f82d3 EB |
392 | hm.u.s.resource.bus_type = HPI_BUS_PCI; |
393 | hm.u.s.resource.r.pci = &pci; | |
394 | ||
395 | /* call CreateAdapterObject on the relevant hpi module */ | |
396 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
397 | if (hr.error) | |
398 | goto err; | |
399 | ||
7036b92d EB |
400 | adapter_index = hr.u.s.adapter_index; |
401 | adapter.adapter = hpi_find_adapter(adapter_index); | |
402 | ||
719f82d3 EB |
403 | if (prealloc_stream_buf) { |
404 | adapter.p_buffer = vmalloc(prealloc_stream_buf); | |
405 | if (!adapter.p_buffer) { | |
406 | HPI_DEBUG_LOG(ERROR, | |
407 | "HPI could not allocate " | |
408 | "kernel buffer size %d\n", | |
409 | prealloc_stream_buf); | |
410 | goto err; | |
411 | } | |
412 | } | |
413 | ||
6d0b898e EB |
414 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, |
415 | HPI_ADAPTER_OPEN); | |
7036b92d | 416 | hm.adapter_index = adapter.adapter->index; |
6d0b898e | 417 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
719f82d3 | 418 | |
f9a376c3 EB |
419 | if (hr.error) { |
420 | HPI_DEBUG_LOG(ERROR, "HPI_ADAPTER_OPEN failed, aborting\n"); | |
421 | goto err; | |
422 | } | |
423 | ||
424 | /* Check if current mode == Low Latency mode */ | |
425 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, | |
426 | HPI_ADAPTER_GET_MODE); | |
427 | hm.adapter_index = adapter.adapter->index; | |
428 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
429 | ||
dc612838 EB |
430 | if (!hr.error |
431 | && hr.u.ax.mode.adapter_mode == HPI_ADAPTER_MODE_LOW_LATENCY) | |
f9a376c3 | 432 | low_latency_mode = 1; |
dc612838 EB |
433 | else |
434 | dev_info(&pci_dev->dev, | |
435 | "Adapter at index %d is not in low latency mode\n", | |
436 | adapter.adapter->index); | |
f9a376c3 EB |
437 | |
438 | /* Check if IRQs are supported */ | |
439 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, | |
440 | HPI_ADAPTER_GET_PROPERTY); | |
441 | hm.adapter_index = adapter.adapter->index; | |
442 | hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_SUPPORTS_IRQ; | |
443 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
444 | if (hr.error || !hr.u.ax.property_get.parameter1) { | |
445 | dev_info(&pci_dev->dev, | |
446 | "IRQs not supported by adapter at index %d\n", | |
447 | adapter.adapter->index); | |
448 | } else { | |
449 | irq_supported = 1; | |
450 | } | |
719f82d3 | 451 | |
719f82d3 EB |
452 | /* WARNING can't init mutex in 'adapter' |
453 | * and then copy it to adapters[] ?!?! | |
454 | */ | |
7036b92d EB |
455 | adapters[adapter_index] = adapter; |
456 | mutex_init(&adapters[adapter_index].mutex); | |
457 | pci_set_drvdata(pci_dev, &adapters[adapter_index]); | |
719f82d3 | 458 | |
f9a376c3 EB |
459 | if (low_latency_mode && irq_supported) { |
460 | if (!adapter.adapter->irq_query_and_clear) { | |
461 | dev_err(&pci_dev->dev, | |
462 | "no IRQ handler for adapter %d, aborting\n", | |
463 | adapter.adapter->index); | |
464 | goto err; | |
465 | } | |
466 | ||
467 | /* Disable IRQ generation on DSP side by setting the rate to 0 */ | |
468 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, | |
469 | HPI_ADAPTER_SET_PROPERTY); | |
470 | hm.adapter_index = adapter.adapter->index; | |
471 | hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE; | |
472 | hm.u.ax.property_set.parameter1 = 0; | |
473 | hm.u.ax.property_set.parameter2 = 0; | |
474 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
475 | if (hr.error) { | |
476 | HPI_DEBUG_LOG(ERROR, | |
477 | "HPI_ADAPTER_GET_MODE failed, aborting\n"); | |
478 | goto err; | |
479 | } | |
480 | ||
481 | /* Note: request_irq calls asihpi_isr here */ | |
482 | if (request_irq(pci_dev->irq, asihpi_isr, IRQF_SHARED, | |
483 | "asihpi", &adapters[adapter_index])) { | |
484 | dev_err(&pci_dev->dev, "request_irq(%d) failed\n", | |
485 | pci_dev->irq); | |
486 | goto err; | |
487 | } | |
488 | ||
489 | adapters[adapter_index].interrupt_mode = 1; | |
490 | ||
491 | dev_info(&pci_dev->dev, "using irq %d\n", pci_dev->irq); | |
492 | adapters[adapter_index].irq = pci_dev->irq; | |
493 | } else { | |
494 | dev_info(&pci_dev->dev, "using polled mode\n"); | |
495 | } | |
496 | ||
4ee3bffc JP |
497 | dev_info(&pci_dev->dev, "probe succeeded for ASI%04X HPI index %d\n", |
498 | adapter.adapter->type, adapter_index); | |
719f82d3 EB |
499 | |
500 | return 0; | |
501 | ||
502 | err: | |
503 | for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) { | |
7036b92d EB |
504 | if (pci.ap_mem_base[idx]) { |
505 | iounmap(pci.ap_mem_base[idx]); | |
506 | pci.ap_mem_base[idx] = NULL; | |
719f82d3 EB |
507 | } |
508 | } | |
509 | ||
510 | if (adapter.p_buffer) { | |
511 | adapter.buffer_size = 0; | |
512 | vfree(adapter.p_buffer); | |
513 | } | |
514 | ||
515 | HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n"); | |
516 | return -ENODEV; | |
517 | } | |
518 | ||
e23e7a14 | 519 | void asihpi_adapter_remove(struct pci_dev *pci_dev) |
719f82d3 EB |
520 | { |
521 | int idx; | |
522 | struct hpi_message hm; | |
523 | struct hpi_response hr; | |
524 | struct hpi_adapter *pa; | |
7036b92d EB |
525 | struct hpi_pci pci; |
526 | ||
5dbea6b1 | 527 | pa = pci_get_drvdata(pci_dev); |
7036b92d | 528 | pci = pa->adapter->pci; |
719f82d3 | 529 | |
f9a376c3 EB |
530 | /* Disable IRQ generation on DSP side */ |
531 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, | |
532 | HPI_ADAPTER_SET_PROPERTY); | |
533 | hm.adapter_index = pa->adapter->index; | |
534 | hm.u.ax.property_set.property = HPI_ADAPTER_PROPERTY_IRQ_RATE; | |
535 | hm.u.ax.property_set.parameter1 = 0; | |
536 | hm.u.ax.property_set.parameter2 = 0; | |
537 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
538 | ||
6d0b898e EB |
539 | hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, |
540 | HPI_ADAPTER_DELETE); | |
7036b92d | 541 | hm.adapter_index = pa->adapter->index; |
719f82d3 EB |
542 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); |
543 | ||
544 | /* unmap PCI memory space, mapped during device init. */ | |
ff6defa6 ME |
545 | for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; ++idx) |
546 | iounmap(pci.ap_mem_base[idx]); | |
719f82d3 | 547 | |
f9a376c3 EB |
548 | if (pa->irq) |
549 | free_irq(pa->irq, pa); | |
550 | ||
87164cc5 | 551 | vfree(pa->p_buffer); |
719f82d3 | 552 | |
3285ea10 | 553 | if (1) |
4ee3bffc JP |
554 | dev_info(&pci_dev->dev, |
555 | "remove %04x:%04x,%04x:%04x,%04x, HPI index %d\n", | |
556 | pci_dev->vendor, pci_dev->device, | |
557 | pci_dev->subsystem_vendor, pci_dev->subsystem_device, | |
558 | pci_dev->devfn, pa->adapter->index); | |
c188dec3 EB |
559 | |
560 | memset(pa, 0, sizeof(*pa)); | |
719f82d3 EB |
561 | } |
562 | ||
563 | void __init asihpi_init(void) | |
564 | { | |
565 | struct hpi_message hm; | |
566 | struct hpi_response hr; | |
567 | ||
568 | memset(adapters, 0, sizeof(adapters)); | |
569 | ||
1dd6aaaa | 570 | printk(KERN_INFO "ASIHPI driver " HPI_VER_STRING "\n"); |
719f82d3 EB |
571 | |
572 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, | |
573 | HPI_SUBSYS_DRIVER_LOAD); | |
574 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
575 | } | |
576 | ||
577 | void asihpi_exit(void) | |
578 | { | |
579 | struct hpi_message hm; | |
580 | struct hpi_response hr; | |
581 | ||
582 | hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, | |
583 | HPI_SUBSYS_DRIVER_UNLOAD); | |
584 | hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); | |
585 | } |