Commit | Line | Data |
---|---|---|
a400cadc DB |
1 | /* |
2 | * f_sourcesink.c - USB peripheral source/sink configuration driver | |
3 | * | |
4 | * Copyright (C) 2003-2008 David Brownell | |
5 | * Copyright (C) 2008 by Nokia Corporation | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
a400cadc DB |
11 | */ |
12 | ||
13 | /* #define VERBOSE_DEBUG */ | |
14 | ||
5a0e3ad6 | 15 | #include <linux/slab.h> |
a400cadc | 16 | #include <linux/kernel.h> |
a400cadc | 17 | #include <linux/device.h> |
6eb0de82 | 18 | #include <linux/module.h> |
cf9a08ae SAS |
19 | #include <linux/usb/composite.h> |
20 | #include <linux/err.h> | |
a400cadc DB |
21 | |
22 | #include "g_zero.h" | |
1efd54ea | 23 | #include "u_f.h" |
a400cadc | 24 | |
a400cadc DB |
25 | /* |
26 | * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral | |
27 | * controller drivers. | |
28 | * | |
29 | * This just sinks bulk packets OUT to the peripheral and sources them IN | |
30 | * to the host, optionally with specific data patterns for integrity tests. | |
31 | * As such it supports basic functionality and load tests. | |
32 | * | |
33 | * In terms of control messaging, this supports all the standard requests | |
34 | * plus two that support control-OUT tests. If the optional "autoresume" | |
35 | * mode is enabled, it provides good functional coverage for the "USBCV" | |
36 | * test harness from USB-IF. | |
a400cadc DB |
37 | */ |
38 | struct f_sourcesink { | |
39 | struct usb_function function; | |
40 | ||
41 | struct usb_ep *in_ep; | |
42 | struct usb_ep *out_ep; | |
b4036ccd PZ |
43 | struct usb_ep *iso_in_ep; |
44 | struct usb_ep *iso_out_ep; | |
45 | int cur_alt; | |
897ee0e8 RB |
46 | |
47 | unsigned pattern; | |
48 | unsigned isoc_interval; | |
49 | unsigned isoc_maxpacket; | |
50 | unsigned isoc_mult; | |
51 | unsigned isoc_maxburst; | |
52 | unsigned buflen; | |
0d6c3d96 PC |
53 | unsigned bulk_qlen; |
54 | unsigned iso_qlen; | |
a400cadc DB |
55 | }; |
56 | ||
57 | static inline struct f_sourcesink *func_to_ss(struct usb_function *f) | |
58 | { | |
59 | return container_of(f, struct f_sourcesink, function); | |
60 | } | |
61 | ||
a400cadc DB |
62 | /*-------------------------------------------------------------------------*/ |
63 | ||
b4036ccd PZ |
64 | static struct usb_interface_descriptor source_sink_intf_alt0 = { |
65 | .bLength = USB_DT_INTERFACE_SIZE, | |
a400cadc DB |
66 | .bDescriptorType = USB_DT_INTERFACE, |
67 | ||
b4036ccd | 68 | .bAlternateSetting = 0, |
a400cadc DB |
69 | .bNumEndpoints = 2, |
70 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
b4036ccd PZ |
71 | /* .iInterface = DYNAMIC */ |
72 | }; | |
73 | ||
74 | static struct usb_interface_descriptor source_sink_intf_alt1 = { | |
75 | .bLength = USB_DT_INTERFACE_SIZE, | |
76 | .bDescriptorType = USB_DT_INTERFACE, | |
77 | ||
78 | .bAlternateSetting = 1, | |
79 | .bNumEndpoints = 4, | |
80 | .bInterfaceClass = USB_CLASS_VENDOR_SPEC, | |
81 | /* .iInterface = DYNAMIC */ | |
a400cadc DB |
82 | }; |
83 | ||
84 | /* full speed support: */ | |
85 | ||
86 | static struct usb_endpoint_descriptor fs_source_desc = { | |
87 | .bLength = USB_DT_ENDPOINT_SIZE, | |
88 | .bDescriptorType = USB_DT_ENDPOINT, | |
89 | ||
90 | .bEndpointAddress = USB_DIR_IN, | |
91 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
92 | }; | |
93 | ||
94 | static struct usb_endpoint_descriptor fs_sink_desc = { | |
95 | .bLength = USB_DT_ENDPOINT_SIZE, | |
96 | .bDescriptorType = USB_DT_ENDPOINT, | |
97 | ||
98 | .bEndpointAddress = USB_DIR_OUT, | |
99 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
100 | }; | |
101 | ||
b4036ccd PZ |
102 | static struct usb_endpoint_descriptor fs_iso_source_desc = { |
103 | .bLength = USB_DT_ENDPOINT_SIZE, | |
104 | .bDescriptorType = USB_DT_ENDPOINT, | |
105 | ||
106 | .bEndpointAddress = USB_DIR_IN, | |
107 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
108 | .wMaxPacketSize = cpu_to_le16(1023), | |
109 | .bInterval = 4, | |
110 | }; | |
111 | ||
112 | static struct usb_endpoint_descriptor fs_iso_sink_desc = { | |
113 | .bLength = USB_DT_ENDPOINT_SIZE, | |
114 | .bDescriptorType = USB_DT_ENDPOINT, | |
115 | ||
116 | .bEndpointAddress = USB_DIR_OUT, | |
117 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
118 | .wMaxPacketSize = cpu_to_le16(1023), | |
119 | .bInterval = 4, | |
120 | }; | |
121 | ||
a400cadc | 122 | static struct usb_descriptor_header *fs_source_sink_descs[] = { |
b4036ccd | 123 | (struct usb_descriptor_header *) &source_sink_intf_alt0, |
a400cadc DB |
124 | (struct usb_descriptor_header *) &fs_sink_desc, |
125 | (struct usb_descriptor_header *) &fs_source_desc, | |
b4036ccd PZ |
126 | (struct usb_descriptor_header *) &source_sink_intf_alt1, |
127 | #define FS_ALT_IFC_1_OFFSET 3 | |
128 | (struct usb_descriptor_header *) &fs_sink_desc, | |
129 | (struct usb_descriptor_header *) &fs_source_desc, | |
130 | (struct usb_descriptor_header *) &fs_iso_sink_desc, | |
131 | (struct usb_descriptor_header *) &fs_iso_source_desc, | |
a400cadc DB |
132 | NULL, |
133 | }; | |
134 | ||
135 | /* high speed support: */ | |
136 | ||
137 | static struct usb_endpoint_descriptor hs_source_desc = { | |
138 | .bLength = USB_DT_ENDPOINT_SIZE, | |
139 | .bDescriptorType = USB_DT_ENDPOINT, | |
140 | ||
141 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
551509d2 | 142 | .wMaxPacketSize = cpu_to_le16(512), |
a400cadc DB |
143 | }; |
144 | ||
145 | static struct usb_endpoint_descriptor hs_sink_desc = { | |
146 | .bLength = USB_DT_ENDPOINT_SIZE, | |
147 | .bDescriptorType = USB_DT_ENDPOINT, | |
148 | ||
149 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
551509d2 | 150 | .wMaxPacketSize = cpu_to_le16(512), |
a400cadc DB |
151 | }; |
152 | ||
b4036ccd PZ |
153 | static struct usb_endpoint_descriptor hs_iso_source_desc = { |
154 | .bLength = USB_DT_ENDPOINT_SIZE, | |
155 | .bDescriptorType = USB_DT_ENDPOINT, | |
156 | ||
157 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
158 | .wMaxPacketSize = cpu_to_le16(1024), | |
159 | .bInterval = 4, | |
160 | }; | |
161 | ||
162 | static struct usb_endpoint_descriptor hs_iso_sink_desc = { | |
163 | .bLength = USB_DT_ENDPOINT_SIZE, | |
164 | .bDescriptorType = USB_DT_ENDPOINT, | |
165 | ||
166 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
167 | .wMaxPacketSize = cpu_to_le16(1024), | |
168 | .bInterval = 4, | |
169 | }; | |
170 | ||
a400cadc | 171 | static struct usb_descriptor_header *hs_source_sink_descs[] = { |
b4036ccd | 172 | (struct usb_descriptor_header *) &source_sink_intf_alt0, |
a400cadc DB |
173 | (struct usb_descriptor_header *) &hs_source_desc, |
174 | (struct usb_descriptor_header *) &hs_sink_desc, | |
b4036ccd PZ |
175 | (struct usb_descriptor_header *) &source_sink_intf_alt1, |
176 | #define HS_ALT_IFC_1_OFFSET 3 | |
177 | (struct usb_descriptor_header *) &hs_source_desc, | |
178 | (struct usb_descriptor_header *) &hs_sink_desc, | |
179 | (struct usb_descriptor_header *) &hs_iso_source_desc, | |
180 | (struct usb_descriptor_header *) &hs_iso_sink_desc, | |
a400cadc DB |
181 | NULL, |
182 | }; | |
183 | ||
57c97c02 AB |
184 | /* super speed support: */ |
185 | ||
186 | static struct usb_endpoint_descriptor ss_source_desc = { | |
187 | .bLength = USB_DT_ENDPOINT_SIZE, | |
188 | .bDescriptorType = USB_DT_ENDPOINT, | |
189 | ||
190 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
191 | .wMaxPacketSize = cpu_to_le16(1024), | |
192 | }; | |
193 | ||
4a5ee77c | 194 | static struct usb_ss_ep_comp_descriptor ss_source_comp_desc = { |
57c97c02 AB |
195 | .bLength = USB_DT_SS_EP_COMP_SIZE, |
196 | .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, | |
b4036ccd | 197 | |
57c97c02 AB |
198 | .bMaxBurst = 0, |
199 | .bmAttributes = 0, | |
200 | .wBytesPerInterval = 0, | |
201 | }; | |
202 | ||
203 | static struct usb_endpoint_descriptor ss_sink_desc = { | |
204 | .bLength = USB_DT_ENDPOINT_SIZE, | |
205 | .bDescriptorType = USB_DT_ENDPOINT, | |
206 | ||
207 | .bmAttributes = USB_ENDPOINT_XFER_BULK, | |
208 | .wMaxPacketSize = cpu_to_le16(1024), | |
209 | }; | |
210 | ||
4a5ee77c | 211 | static struct usb_ss_ep_comp_descriptor ss_sink_comp_desc = { |
57c97c02 AB |
212 | .bLength = USB_DT_SS_EP_COMP_SIZE, |
213 | .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, | |
b4036ccd | 214 | |
57c97c02 AB |
215 | .bMaxBurst = 0, |
216 | .bmAttributes = 0, | |
217 | .wBytesPerInterval = 0, | |
218 | }; | |
219 | ||
b4036ccd PZ |
220 | static struct usb_endpoint_descriptor ss_iso_source_desc = { |
221 | .bLength = USB_DT_ENDPOINT_SIZE, | |
222 | .bDescriptorType = USB_DT_ENDPOINT, | |
223 | ||
224 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
225 | .wMaxPacketSize = cpu_to_le16(1024), | |
226 | .bInterval = 4, | |
227 | }; | |
228 | ||
4a5ee77c | 229 | static struct usb_ss_ep_comp_descriptor ss_iso_source_comp_desc = { |
b4036ccd PZ |
230 | .bLength = USB_DT_SS_EP_COMP_SIZE, |
231 | .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, | |
232 | ||
233 | .bMaxBurst = 0, | |
234 | .bmAttributes = 0, | |
235 | .wBytesPerInterval = cpu_to_le16(1024), | |
236 | }; | |
237 | ||
238 | static struct usb_endpoint_descriptor ss_iso_sink_desc = { | |
239 | .bLength = USB_DT_ENDPOINT_SIZE, | |
240 | .bDescriptorType = USB_DT_ENDPOINT, | |
241 | ||
242 | .bmAttributes = USB_ENDPOINT_XFER_ISOC, | |
243 | .wMaxPacketSize = cpu_to_le16(1024), | |
244 | .bInterval = 4, | |
245 | }; | |
246 | ||
4a5ee77c | 247 | static struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = { |
b4036ccd PZ |
248 | .bLength = USB_DT_SS_EP_COMP_SIZE, |
249 | .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, | |
250 | ||
251 | .bMaxBurst = 0, | |
252 | .bmAttributes = 0, | |
253 | .wBytesPerInterval = cpu_to_le16(1024), | |
254 | }; | |
255 | ||
57c97c02 | 256 | static struct usb_descriptor_header *ss_source_sink_descs[] = { |
b4036ccd | 257 | (struct usb_descriptor_header *) &source_sink_intf_alt0, |
57c97c02 AB |
258 | (struct usb_descriptor_header *) &ss_source_desc, |
259 | (struct usb_descriptor_header *) &ss_source_comp_desc, | |
260 | (struct usb_descriptor_header *) &ss_sink_desc, | |
261 | (struct usb_descriptor_header *) &ss_sink_comp_desc, | |
b4036ccd PZ |
262 | (struct usb_descriptor_header *) &source_sink_intf_alt1, |
263 | #define SS_ALT_IFC_1_OFFSET 5 | |
264 | (struct usb_descriptor_header *) &ss_source_desc, | |
265 | (struct usb_descriptor_header *) &ss_source_comp_desc, | |
266 | (struct usb_descriptor_header *) &ss_sink_desc, | |
267 | (struct usb_descriptor_header *) &ss_sink_comp_desc, | |
268 | (struct usb_descriptor_header *) &ss_iso_source_desc, | |
269 | (struct usb_descriptor_header *) &ss_iso_source_comp_desc, | |
270 | (struct usb_descriptor_header *) &ss_iso_sink_desc, | |
271 | (struct usb_descriptor_header *) &ss_iso_sink_comp_desc, | |
57c97c02 AB |
272 | NULL, |
273 | }; | |
274 | ||
a400cadc DB |
275 | /* function-specific strings: */ |
276 | ||
277 | static struct usb_string strings_sourcesink[] = { | |
278 | [0].s = "source and sink data", | |
279 | { } /* end of list */ | |
280 | }; | |
281 | ||
282 | static struct usb_gadget_strings stringtab_sourcesink = { | |
283 | .language = 0x0409, /* en-us */ | |
284 | .strings = strings_sourcesink, | |
285 | }; | |
286 | ||
287 | static struct usb_gadget_strings *sourcesink_strings[] = { | |
288 | &stringtab_sourcesink, | |
289 | NULL, | |
290 | }; | |
291 | ||
292 | /*-------------------------------------------------------------------------*/ | |
293 | ||
1efd54ea | 294 | static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len) |
cf9a08ae | 295 | { |
aadbe812 | 296 | return alloc_ep_req(ep, len); |
cf9a08ae SAS |
297 | } |
298 | ||
cf9a08ae SAS |
299 | static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep) |
300 | { | |
301 | int value; | |
302 | ||
dbd2badf RB |
303 | value = usb_ep_disable(ep); |
304 | if (value < 0) | |
305 | DBG(cdev, "disable %s --> %d\n", ep->name, value); | |
cf9a08ae SAS |
306 | } |
307 | ||
308 | void disable_endpoints(struct usb_composite_dev *cdev, | |
309 | struct usb_ep *in, struct usb_ep *out, | |
2c247804 | 310 | struct usb_ep *iso_in, struct usb_ep *iso_out) |
cf9a08ae SAS |
311 | { |
312 | disable_ep(cdev, in); | |
313 | disable_ep(cdev, out); | |
314 | if (iso_in) | |
315 | disable_ep(cdev, iso_in); | |
316 | if (iso_out) | |
317 | disable_ep(cdev, iso_out); | |
318 | } | |
319 | ||
320 | static int | |
a400cadc DB |
321 | sourcesink_bind(struct usb_configuration *c, struct usb_function *f) |
322 | { | |
323 | struct usb_composite_dev *cdev = c->cdev; | |
324 | struct f_sourcesink *ss = func_to_ss(f); | |
325 | int id; | |
10287bae | 326 | int ret; |
a400cadc DB |
327 | |
328 | /* allocate interface ID(s) */ | |
329 | id = usb_interface_id(c, f); | |
330 | if (id < 0) | |
331 | return id; | |
b4036ccd PZ |
332 | source_sink_intf_alt0.bInterfaceNumber = id; |
333 | source_sink_intf_alt1.bInterfaceNumber = id; | |
a400cadc | 334 | |
b4036ccd | 335 | /* allocate bulk endpoints */ |
a400cadc DB |
336 | ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc); |
337 | if (!ss->in_ep) { | |
338 | autoconf_fail: | |
339 | ERROR(cdev, "%s: can't autoconfigure on %s\n", | |
340 | f->name, cdev->gadget->name); | |
341 | return -ENODEV; | |
342 | } | |
a400cadc DB |
343 | |
344 | ss->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc); | |
345 | if (!ss->out_ep) | |
346 | goto autoconf_fail; | |
a400cadc | 347 | |
b4036ccd | 348 | /* sanity check the isoc module parameters */ |
897ee0e8 RB |
349 | if (ss->isoc_interval < 1) |
350 | ss->isoc_interval = 1; | |
351 | if (ss->isoc_interval > 16) | |
352 | ss->isoc_interval = 16; | |
353 | if (ss->isoc_mult > 2) | |
354 | ss->isoc_mult = 2; | |
355 | if (ss->isoc_maxburst > 15) | |
356 | ss->isoc_maxburst = 15; | |
b4036ccd PZ |
357 | |
358 | /* fill in the FS isoc descriptors from the module parameters */ | |
897ee0e8 RB |
359 | fs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ? |
360 | 1023 : ss->isoc_maxpacket; | |
361 | fs_iso_source_desc.bInterval = ss->isoc_interval; | |
362 | fs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ? | |
363 | 1023 : ss->isoc_maxpacket; | |
364 | fs_iso_sink_desc.bInterval = ss->isoc_interval; | |
b4036ccd PZ |
365 | |
366 | /* allocate iso endpoints */ | |
367 | ss->iso_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_source_desc); | |
368 | if (!ss->iso_in_ep) | |
369 | goto no_iso; | |
b4036ccd PZ |
370 | |
371 | ss->iso_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_sink_desc); | |
dbd2badf RB |
372 | if (!ss->iso_out_ep) { |
373 | usb_ep_autoconfig_release(ss->iso_in_ep); | |
b4036ccd PZ |
374 | ss->iso_in_ep = NULL; |
375 | no_iso: | |
376 | /* | |
377 | * We still want to work even if the UDC doesn't have isoc | |
378 | * endpoints, so null out the alt interface that contains | |
379 | * them and continue. | |
380 | */ | |
381 | fs_source_sink_descs[FS_ALT_IFC_1_OFFSET] = NULL; | |
382 | hs_source_sink_descs[HS_ALT_IFC_1_OFFSET] = NULL; | |
383 | ss_source_sink_descs[SS_ALT_IFC_1_OFFSET] = NULL; | |
384 | } | |
385 | ||
897ee0e8 RB |
386 | if (ss->isoc_maxpacket > 1024) |
387 | ss->isoc_maxpacket = 1024; | |
b4036ccd | 388 | |
a400cadc | 389 | /* support high speed hardware */ |
10287bae SAS |
390 | hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress; |
391 | hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress; | |
392 | ||
393 | /* | |
2c247804 FB |
394 | * Fill in the HS isoc descriptors from the module parameters. |
395 | * We assume that the user knows what they are doing and won't | |
396 | * give parameters that their UDC doesn't support. | |
10287bae | 397 | */ |
897ee0e8 RB |
398 | hs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket; |
399 | hs_iso_source_desc.wMaxPacketSize |= ss->isoc_mult << 11; | |
400 | hs_iso_source_desc.bInterval = ss->isoc_interval; | |
10287bae SAS |
401 | hs_iso_source_desc.bEndpointAddress = |
402 | fs_iso_source_desc.bEndpointAddress; | |
403 | ||
897ee0e8 RB |
404 | hs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket; |
405 | hs_iso_sink_desc.wMaxPacketSize |= ss->isoc_mult << 11; | |
406 | hs_iso_sink_desc.bInterval = ss->isoc_interval; | |
10287bae | 407 | hs_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress; |
a400cadc | 408 | |
57c97c02 | 409 | /* support super speed hardware */ |
10287bae SAS |
410 | ss_source_desc.bEndpointAddress = |
411 | fs_source_desc.bEndpointAddress; | |
412 | ss_sink_desc.bEndpointAddress = | |
413 | fs_sink_desc.bEndpointAddress; | |
414 | ||
415 | /* | |
2c247804 FB |
416 | * Fill in the SS isoc descriptors from the module parameters. |
417 | * We assume that the user knows what they are doing and won't | |
418 | * give parameters that their UDC doesn't support. | |
10287bae | 419 | */ |
897ee0e8 RB |
420 | ss_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket; |
421 | ss_iso_source_desc.bInterval = ss->isoc_interval; | |
422 | ss_iso_source_comp_desc.bmAttributes = ss->isoc_mult; | |
423 | ss_iso_source_comp_desc.bMaxBurst = ss->isoc_maxburst; | |
424 | ss_iso_source_comp_desc.wBytesPerInterval = ss->isoc_maxpacket * | |
425 | (ss->isoc_mult + 1) * (ss->isoc_maxburst + 1); | |
10287bae SAS |
426 | ss_iso_source_desc.bEndpointAddress = |
427 | fs_iso_source_desc.bEndpointAddress; | |
428 | ||
897ee0e8 RB |
429 | ss_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket; |
430 | ss_iso_sink_desc.bInterval = ss->isoc_interval; | |
431 | ss_iso_sink_comp_desc.bmAttributes = ss->isoc_mult; | |
432 | ss_iso_sink_comp_desc.bMaxBurst = ss->isoc_maxburst; | |
433 | ss_iso_sink_comp_desc.wBytesPerInterval = ss->isoc_maxpacket * | |
434 | (ss->isoc_mult + 1) * (ss->isoc_maxburst + 1); | |
10287bae SAS |
435 | ss_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress; |
436 | ||
437 | ret = usb_assign_descriptors(f, fs_source_sink_descs, | |
eaef50c7 | 438 | hs_source_sink_descs, ss_source_sink_descs, NULL); |
10287bae SAS |
439 | if (ret) |
440 | return ret; | |
57c97c02 | 441 | |
2c247804 | 442 | DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n", |
57c97c02 AB |
443 | (gadget_is_superspeed(c->cdev->gadget) ? "super" : |
444 | (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")), | |
b4036ccd PZ |
445 | f->name, ss->in_ep->name, ss->out_ep->name, |
446 | ss->iso_in_ep ? ss->iso_in_ep->name : "<none>", | |
2c247804 | 447 | ss->iso_out_ep ? ss->iso_out_ep->name : "<none>"); |
a400cadc DB |
448 | return 0; |
449 | } | |
450 | ||
451 | static void | |
cf9a08ae | 452 | sourcesink_free_func(struct usb_function *f) |
a400cadc | 453 | { |
25d80151 AP |
454 | struct f_ss_opts *opts; |
455 | ||
456 | opts = container_of(f->fi, struct f_ss_opts, func_inst); | |
457 | ||
458 | mutex_lock(&opts->lock); | |
459 | opts->refcnt--; | |
460 | mutex_unlock(&opts->lock); | |
461 | ||
10287bae | 462 | usb_free_all_descriptors(f); |
a400cadc DB |
463 | kfree(func_to_ss(f)); |
464 | } | |
465 | ||
466 | /* optionally require specific source/sink data patterns */ | |
467 | static int check_read_data(struct f_sourcesink *ss, struct usb_request *req) | |
468 | { | |
469 | unsigned i; | |
470 | u8 *buf = req->buf; | |
471 | struct usb_composite_dev *cdev = ss->function.config->cdev; | |
04683909 | 472 | int max_packet_size = le16_to_cpu(ss->out_ep->desc->wMaxPacketSize); |
a400cadc | 473 | |
897ee0e8 | 474 | if (ss->pattern == 2) |
b4036ccd PZ |
475 | return 0; |
476 | ||
a400cadc | 477 | for (i = 0; i < req->actual; i++, buf++) { |
897ee0e8 | 478 | switch (ss->pattern) { |
a400cadc DB |
479 | |
480 | /* all-zeroes has no synchronization issues */ | |
481 | case 0: | |
482 | if (*buf == 0) | |
483 | continue; | |
484 | break; | |
485 | ||
486 | /* "mod63" stays in sync with short-terminated transfers, | |
487 | * OR otherwise when host and gadget agree on how large | |
488 | * each usb transfer request should be. Resync is done | |
489 | * with set_interface or set_config. (We *WANT* it to | |
490 | * get quickly out of sync if controllers or their drivers | |
b4036ccd | 491 | * stutter for any reason, including buffer duplication...) |
a400cadc DB |
492 | */ |
493 | case 1: | |
04683909 | 494 | if (*buf == (u8)((i % max_packet_size) % 63)) |
a400cadc DB |
495 | continue; |
496 | break; | |
497 | } | |
498 | ERROR(cdev, "bad OUT byte, buf[%d] = %d\n", i, *buf); | |
499 | usb_ep_set_halt(ss->out_ep); | |
500 | return -EINVAL; | |
501 | } | |
502 | return 0; | |
503 | } | |
504 | ||
505 | static void reinit_write_data(struct usb_ep *ep, struct usb_request *req) | |
506 | { | |
507 | unsigned i; | |
508 | u8 *buf = req->buf; | |
04683909 | 509 | int max_packet_size = le16_to_cpu(ep->desc->wMaxPacketSize); |
897ee0e8 | 510 | struct f_sourcesink *ss = ep->driver_data; |
a400cadc | 511 | |
897ee0e8 | 512 | switch (ss->pattern) { |
a400cadc DB |
513 | case 0: |
514 | memset(req->buf, 0, req->length); | |
515 | break; | |
516 | case 1: | |
517 | for (i = 0; i < req->length; i++) | |
04683909 | 518 | *buf++ = (u8) ((i % max_packet_size) % 63); |
a400cadc | 519 | break; |
b4036ccd PZ |
520 | case 2: |
521 | break; | |
a400cadc DB |
522 | } |
523 | } | |
524 | ||
525 | static void source_sink_complete(struct usb_ep *ep, struct usb_request *req) | |
526 | { | |
b4036ccd PZ |
527 | struct usb_composite_dev *cdev; |
528 | struct f_sourcesink *ss = ep->driver_data; | |
529 | int status = req->status; | |
530 | ||
531 | /* driver_data will be null if ep has been disabled */ | |
532 | if (!ss) | |
533 | return; | |
534 | ||
535 | cdev = ss->function.config->cdev; | |
a400cadc DB |
536 | |
537 | switch (status) { | |
538 | ||
539 | case 0: /* normal completion? */ | |
540 | if (ep == ss->out_ep) { | |
541 | check_read_data(ss, req); | |
897ee0e8 | 542 | if (ss->pattern != 2) |
b4036ccd | 543 | memset(req->buf, 0x55, req->length); |
32c9cf22 | 544 | } |
a400cadc DB |
545 | break; |
546 | ||
547 | /* this endpoint is normally active while we're configured */ | |
548 | case -ECONNABORTED: /* hardware forced ep reset */ | |
549 | case -ECONNRESET: /* request dequeued */ | |
550 | case -ESHUTDOWN: /* disconnect from host */ | |
551 | VDBG(cdev, "%s gone (%d), %d/%d\n", ep->name, status, | |
552 | req->actual, req->length); | |
553 | if (ep == ss->out_ep) | |
554 | check_read_data(ss, req); | |
555 | free_ep_req(ep, req); | |
556 | return; | |
557 | ||
558 | case -EOVERFLOW: /* buffer overrun on read means that | |
559 | * we didn't provide a big enough | |
560 | * buffer. | |
561 | */ | |
562 | default: | |
563 | #if 1 | |
564 | DBG(cdev, "%s complete --> %d, %d/%d\n", ep->name, | |
565 | status, req->actual, req->length); | |
566 | #endif | |
567 | case -EREMOTEIO: /* short read */ | |
568 | break; | |
569 | } | |
570 | ||
571 | status = usb_ep_queue(ep, req, GFP_ATOMIC); | |
572 | if (status) { | |
573 | ERROR(cdev, "kill %s: resubmit %d bytes --> %d\n", | |
574 | ep->name, req->length, status); | |
575 | usb_ep_set_halt(ep); | |
576 | /* FIXME recover later ... somehow */ | |
577 | } | |
578 | } | |
579 | ||
b4036ccd | 580 | static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in, |
2c247804 | 581 | bool is_iso, int speed) |
a400cadc DB |
582 | { |
583 | struct usb_ep *ep; | |
584 | struct usb_request *req; | |
0d6c3d96 PC |
585 | int i, size, qlen, status = 0; |
586 | ||
587 | if (is_iso) { | |
588 | switch (speed) { | |
589 | case USB_SPEED_SUPER: | |
590 | size = ss->isoc_maxpacket * | |
591 | (ss->isoc_mult + 1) * | |
592 | (ss->isoc_maxburst + 1); | |
593 | break; | |
594 | case USB_SPEED_HIGH: | |
595 | size = ss->isoc_maxpacket * (ss->isoc_mult + 1); | |
596 | break; | |
597 | default: | |
598 | size = ss->isoc_maxpacket > 1023 ? | |
599 | 1023 : ss->isoc_maxpacket; | |
600 | break; | |
b4036ccd | 601 | } |
0d6c3d96 PC |
602 | ep = is_in ? ss->iso_in_ep : ss->iso_out_ep; |
603 | qlen = ss->iso_qlen; | |
604 | } else { | |
605 | ep = is_in ? ss->in_ep : ss->out_ep; | |
606 | qlen = ss->bulk_qlen; | |
aadbe812 | 607 | size = ss->buflen; |
0d6c3d96 | 608 | } |
a400cadc | 609 | |
0d6c3d96 PC |
610 | for (i = 0; i < qlen; i++) { |
611 | req = ss_alloc_ep_req(ep, size); | |
b4036ccd PZ |
612 | if (!req) |
613 | return -ENOMEM; | |
a400cadc | 614 | |
b4036ccd PZ |
615 | req->complete = source_sink_complete; |
616 | if (is_in) | |
617 | reinit_write_data(ep, req); | |
897ee0e8 | 618 | else if (ss->pattern != 2) |
b4036ccd | 619 | memset(req->buf, 0x55, req->length); |
a400cadc | 620 | |
b4036ccd PZ |
621 | status = usb_ep_queue(ep, req, GFP_ATOMIC); |
622 | if (status) { | |
623 | struct usb_composite_dev *cdev; | |
a400cadc | 624 | |
b4036ccd PZ |
625 | cdev = ss->function.config->cdev; |
626 | ERROR(cdev, "start %s%s %s --> %d\n", | |
2c247804 FB |
627 | is_iso ? "ISO-" : "", is_in ? "IN" : "OUT", |
628 | ep->name, status); | |
b4036ccd | 629 | free_ep_req(ep, req); |
fa4dce20 | 630 | return status; |
b4036ccd | 631 | } |
a400cadc DB |
632 | } |
633 | ||
634 | return status; | |
635 | } | |
636 | ||
637 | static void disable_source_sink(struct f_sourcesink *ss) | |
638 | { | |
639 | struct usb_composite_dev *cdev; | |
640 | ||
641 | cdev = ss->function.config->cdev; | |
b4036ccd | 642 | disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep, |
2c247804 | 643 | ss->iso_out_ep); |
a400cadc DB |
644 | VDBG(cdev, "%s disabled\n", ss->function.name); |
645 | } | |
646 | ||
647 | static int | |
b4036ccd PZ |
648 | enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss, |
649 | int alt) | |
a400cadc DB |
650 | { |
651 | int result = 0; | |
b4036ccd | 652 | int speed = cdev->gadget->speed; |
a400cadc DB |
653 | struct usb_ep *ep; |
654 | ||
b4036ccd | 655 | /* one bulk endpoint writes (sources) zeroes IN (to the host) */ |
a400cadc | 656 | ep = ss->in_ep; |
ea2a1df7 TB |
657 | result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); |
658 | if (result) | |
659 | return result; | |
72c973dd | 660 | result = usb_ep_enable(ep); |
a400cadc DB |
661 | if (result < 0) |
662 | return result; | |
663 | ep->driver_data = ss; | |
664 | ||
2c247804 | 665 | result = source_sink_start_ep(ss, true, false, speed); |
a400cadc DB |
666 | if (result < 0) { |
667 | fail: | |
668 | ep = ss->in_ep; | |
669 | usb_ep_disable(ep); | |
a400cadc DB |
670 | return result; |
671 | } | |
672 | ||
b4036ccd | 673 | /* one bulk endpoint reads (sinks) anything OUT (from the host) */ |
a400cadc | 674 | ep = ss->out_ep; |
ea2a1df7 TB |
675 | result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); |
676 | if (result) | |
677 | goto fail; | |
72c973dd | 678 | result = usb_ep_enable(ep); |
a400cadc DB |
679 | if (result < 0) |
680 | goto fail; | |
681 | ep->driver_data = ss; | |
682 | ||
2c247804 | 683 | result = source_sink_start_ep(ss, false, false, speed); |
a400cadc | 684 | if (result < 0) { |
b4036ccd PZ |
685 | fail2: |
686 | ep = ss->out_ep; | |
a400cadc | 687 | usb_ep_disable(ep); |
a400cadc DB |
688 | goto fail; |
689 | } | |
690 | ||
b4036ccd PZ |
691 | if (alt == 0) |
692 | goto out; | |
693 | ||
694 | /* one iso endpoint writes (sources) zeroes IN (to the host) */ | |
695 | ep = ss->iso_in_ep; | |
696 | if (ep) { | |
697 | result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); | |
698 | if (result) | |
699 | goto fail2; | |
700 | result = usb_ep_enable(ep); | |
701 | if (result < 0) | |
702 | goto fail2; | |
703 | ep->driver_data = ss; | |
704 | ||
2c247804 | 705 | result = source_sink_start_ep(ss, true, true, speed); |
b4036ccd PZ |
706 | if (result < 0) { |
707 | fail3: | |
708 | ep = ss->iso_in_ep; | |
dbd2badf | 709 | if (ep) |
b4036ccd | 710 | usb_ep_disable(ep); |
b4036ccd PZ |
711 | goto fail2; |
712 | } | |
713 | } | |
714 | ||
715 | /* one iso endpoint reads (sinks) anything OUT (from the host) */ | |
716 | ep = ss->iso_out_ep; | |
717 | if (ep) { | |
718 | result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); | |
719 | if (result) | |
720 | goto fail3; | |
721 | result = usb_ep_enable(ep); | |
722 | if (result < 0) | |
723 | goto fail3; | |
724 | ep->driver_data = ss; | |
725 | ||
2c247804 | 726 | result = source_sink_start_ep(ss, false, true, speed); |
b4036ccd PZ |
727 | if (result < 0) { |
728 | usb_ep_disable(ep); | |
b4036ccd PZ |
729 | goto fail3; |
730 | } | |
731 | } | |
732 | out: | |
733 | ss->cur_alt = alt; | |
734 | ||
735 | DBG(cdev, "%s enabled, alt intf %d\n", ss->function.name, alt); | |
a400cadc DB |
736 | return result; |
737 | } | |
738 | ||
739 | static int sourcesink_set_alt(struct usb_function *f, | |
740 | unsigned intf, unsigned alt) | |
741 | { | |
b4036ccd PZ |
742 | struct f_sourcesink *ss = func_to_ss(f); |
743 | struct usb_composite_dev *cdev = f->config->cdev; | |
a400cadc | 744 | |
dbd2badf | 745 | disable_source_sink(ss); |
b4036ccd PZ |
746 | return enable_source_sink(cdev, ss, alt); |
747 | } | |
748 | ||
749 | static int sourcesink_get_alt(struct usb_function *f, unsigned intf) | |
750 | { | |
751 | struct f_sourcesink *ss = func_to_ss(f); | |
752 | ||
753 | return ss->cur_alt; | |
a400cadc DB |
754 | } |
755 | ||
756 | static void sourcesink_disable(struct usb_function *f) | |
757 | { | |
758 | struct f_sourcesink *ss = func_to_ss(f); | |
759 | ||
760 | disable_source_sink(ss); | |
761 | } | |
762 | ||
a400cadc | 763 | /*-------------------------------------------------------------------------*/ |
cf9a08ae | 764 | |
544aca39 | 765 | static int sourcesink_setup(struct usb_function *f, |
a400cadc DB |
766 | const struct usb_ctrlrequest *ctrl) |
767 | { | |
544aca39 | 768 | struct usb_configuration *c = f->config; |
a400cadc DB |
769 | struct usb_request *req = c->cdev->req; |
770 | int value = -EOPNOTSUPP; | |
771 | u16 w_index = le16_to_cpu(ctrl->wIndex); | |
772 | u16 w_value = le16_to_cpu(ctrl->wValue); | |
773 | u16 w_length = le16_to_cpu(ctrl->wLength); | |
774 | ||
e13f17ff | 775 | req->length = USB_COMP_EP0_BUFSIZ; |
5030ec73 | 776 | |
a400cadc DB |
777 | /* composite driver infrastructure handles everything except |
778 | * the two control test requests. | |
779 | */ | |
780 | switch (ctrl->bRequest) { | |
781 | ||
782 | /* | |
783 | * These are the same vendor-specific requests supported by | |
784 | * Intel's USB 2.0 compliance test devices. We exceed that | |
785 | * device spec by allowing multiple-packet requests. | |
786 | * | |
787 | * NOTE: the Control-OUT data stays in req->buf ... better | |
788 | * would be copying it into a scratch buffer, so that other | |
789 | * requests may safely intervene. | |
790 | */ | |
791 | case 0x5b: /* control WRITE test -- fill the buffer */ | |
792 | if (ctrl->bRequestType != (USB_DIR_OUT|USB_TYPE_VENDOR)) | |
793 | goto unknown; | |
794 | if (w_value || w_index) | |
795 | break; | |
796 | /* just read that many bytes into the buffer */ | |
797 | if (w_length > req->length) | |
798 | break; | |
799 | value = w_length; | |
800 | break; | |
801 | case 0x5c: /* control READ test -- return the buffer */ | |
802 | if (ctrl->bRequestType != (USB_DIR_IN|USB_TYPE_VENDOR)) | |
803 | goto unknown; | |
804 | if (w_value || w_index) | |
805 | break; | |
806 | /* expect those bytes are still in the buffer; send back */ | |
807 | if (w_length > req->length) | |
808 | break; | |
809 | value = w_length; | |
810 | break; | |
811 | ||
812 | default: | |
813 | unknown: | |
814 | VDBG(c->cdev, | |
815 | "unknown control req%02x.%02x v%04x i%04x l%d\n", | |
816 | ctrl->bRequestType, ctrl->bRequest, | |
817 | w_value, w_index, w_length); | |
818 | } | |
819 | ||
820 | /* respond with data transfer or status phase? */ | |
821 | if (value >= 0) { | |
822 | VDBG(c->cdev, "source/sink req%02x.%02x v%04x i%04x l%d\n", | |
823 | ctrl->bRequestType, ctrl->bRequest, | |
824 | w_value, w_index, w_length); | |
825 | req->zero = 0; | |
826 | req->length = value; | |
827 | value = usb_ep_queue(c->cdev->gadget->ep0, req, GFP_ATOMIC); | |
828 | if (value < 0) | |
b4036ccd | 829 | ERROR(c->cdev, "source/sink response, err %d\n", |
a400cadc DB |
830 | value); |
831 | } | |
832 | ||
833 | /* device either stalls (value < 0) or reports success */ | |
834 | return value; | |
835 | } | |
836 | ||
cf9a08ae SAS |
837 | static struct usb_function *source_sink_alloc_func( |
838 | struct usb_function_instance *fi) | |
544aca39 | 839 | { |
cf9a08ae SAS |
840 | struct f_sourcesink *ss; |
841 | struct f_ss_opts *ss_opts; | |
544aca39 SAS |
842 | |
843 | ss = kzalloc(sizeof(*ss), GFP_KERNEL); | |
844 | if (!ss) | |
cf9a08ae | 845 | return NULL; |
544aca39 | 846 | |
cf9a08ae | 847 | ss_opts = container_of(fi, struct f_ss_opts, func_inst); |
25d80151 AP |
848 | |
849 | mutex_lock(&ss_opts->lock); | |
850 | ss_opts->refcnt++; | |
851 | mutex_unlock(&ss_opts->lock); | |
852 | ||
897ee0e8 RB |
853 | ss->pattern = ss_opts->pattern; |
854 | ss->isoc_interval = ss_opts->isoc_interval; | |
855 | ss->isoc_maxpacket = ss_opts->isoc_maxpacket; | |
856 | ss->isoc_mult = ss_opts->isoc_mult; | |
857 | ss->isoc_maxburst = ss_opts->isoc_maxburst; | |
858 | ss->buflen = ss_opts->bulk_buflen; | |
0d6c3d96 PC |
859 | ss->bulk_qlen = ss_opts->bulk_qlen; |
860 | ss->iso_qlen = ss_opts->iso_qlen; | |
544aca39 SAS |
861 | |
862 | ss->function.name = "source/sink"; | |
863 | ss->function.bind = sourcesink_bind; | |
544aca39 SAS |
864 | ss->function.set_alt = sourcesink_set_alt; |
865 | ss->function.get_alt = sourcesink_get_alt; | |
866 | ss->function.disable = sourcesink_disable; | |
867 | ss->function.setup = sourcesink_setup; | |
cf9a08ae | 868 | ss->function.strings = sourcesink_strings; |
544aca39 | 869 | |
cf9a08ae SAS |
870 | ss->function.free_func = sourcesink_free_func; |
871 | ||
872 | return &ss->function; | |
544aca39 SAS |
873 | } |
874 | ||
25d80151 AP |
875 | static inline struct f_ss_opts *to_f_ss_opts(struct config_item *item) |
876 | { | |
877 | return container_of(to_config_group(item), struct f_ss_opts, | |
878 | func_inst.group); | |
879 | } | |
880 | ||
25d80151 AP |
881 | static void ss_attr_release(struct config_item *item) |
882 | { | |
883 | struct f_ss_opts *ss_opts = to_f_ss_opts(item); | |
884 | ||
885 | usb_put_function_instance(&ss_opts->func_inst); | |
886 | } | |
887 | ||
888 | static struct configfs_item_operations ss_item_ops = { | |
889 | .release = ss_attr_release, | |
25d80151 AP |
890 | }; |
891 | ||
208e61ac | 892 | static ssize_t f_ss_opts_pattern_show(struct config_item *item, char *page) |
25d80151 | 893 | { |
208e61ac | 894 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
895 | int result; |
896 | ||
897 | mutex_lock(&opts->lock); | |
fa50bff6 | 898 | result = sprintf(page, "%u\n", opts->pattern); |
25d80151 AP |
899 | mutex_unlock(&opts->lock); |
900 | ||
901 | return result; | |
902 | } | |
903 | ||
208e61ac | 904 | static ssize_t f_ss_opts_pattern_store(struct config_item *item, |
25d80151 AP |
905 | const char *page, size_t len) |
906 | { | |
208e61ac | 907 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
908 | int ret; |
909 | u8 num; | |
910 | ||
911 | mutex_lock(&opts->lock); | |
912 | if (opts->refcnt) { | |
913 | ret = -EBUSY; | |
914 | goto end; | |
915 | } | |
916 | ||
917 | ret = kstrtou8(page, 0, &num); | |
918 | if (ret) | |
919 | goto end; | |
920 | ||
921 | if (num != 0 && num != 1 && num != 2) { | |
922 | ret = -EINVAL; | |
923 | goto end; | |
924 | } | |
925 | ||
926 | opts->pattern = num; | |
927 | ret = len; | |
928 | end: | |
929 | mutex_unlock(&opts->lock); | |
930 | return ret; | |
931 | } | |
932 | ||
208e61ac | 933 | CONFIGFS_ATTR(f_ss_opts_, pattern); |
25d80151 | 934 | |
208e61ac | 935 | static ssize_t f_ss_opts_isoc_interval_show(struct config_item *item, char *page) |
25d80151 | 936 | { |
208e61ac | 937 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
938 | int result; |
939 | ||
940 | mutex_lock(&opts->lock); | |
fa50bff6 | 941 | result = sprintf(page, "%u\n", opts->isoc_interval); |
25d80151 AP |
942 | mutex_unlock(&opts->lock); |
943 | ||
944 | return result; | |
945 | } | |
946 | ||
208e61ac | 947 | static ssize_t f_ss_opts_isoc_interval_store(struct config_item *item, |
25d80151 AP |
948 | const char *page, size_t len) |
949 | { | |
208e61ac | 950 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
951 | int ret; |
952 | u8 num; | |
953 | ||
954 | mutex_lock(&opts->lock); | |
955 | if (opts->refcnt) { | |
956 | ret = -EBUSY; | |
957 | goto end; | |
958 | } | |
959 | ||
960 | ret = kstrtou8(page, 0, &num); | |
961 | if (ret) | |
962 | goto end; | |
963 | ||
964 | if (num > 16) { | |
965 | ret = -EINVAL; | |
966 | goto end; | |
967 | } | |
968 | ||
969 | opts->isoc_interval = num; | |
970 | ret = len; | |
971 | end: | |
972 | mutex_unlock(&opts->lock); | |
973 | return ret; | |
974 | } | |
975 | ||
208e61ac | 976 | CONFIGFS_ATTR(f_ss_opts_, isoc_interval); |
25d80151 | 977 | |
208e61ac | 978 | static ssize_t f_ss_opts_isoc_maxpacket_show(struct config_item *item, char *page) |
25d80151 | 979 | { |
208e61ac | 980 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
981 | int result; |
982 | ||
983 | mutex_lock(&opts->lock); | |
fa50bff6 | 984 | result = sprintf(page, "%u\n", opts->isoc_maxpacket); |
25d80151 AP |
985 | mutex_unlock(&opts->lock); |
986 | ||
987 | return result; | |
988 | } | |
989 | ||
208e61ac | 990 | static ssize_t f_ss_opts_isoc_maxpacket_store(struct config_item *item, |
25d80151 AP |
991 | const char *page, size_t len) |
992 | { | |
208e61ac | 993 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
994 | int ret; |
995 | u16 num; | |
996 | ||
997 | mutex_lock(&opts->lock); | |
998 | if (opts->refcnt) { | |
999 | ret = -EBUSY; | |
1000 | goto end; | |
1001 | } | |
1002 | ||
1003 | ret = kstrtou16(page, 0, &num); | |
1004 | if (ret) | |
1005 | goto end; | |
1006 | ||
1007 | if (num > 1024) { | |
1008 | ret = -EINVAL; | |
1009 | goto end; | |
1010 | } | |
1011 | ||
1012 | opts->isoc_maxpacket = num; | |
1013 | ret = len; | |
1014 | end: | |
1015 | mutex_unlock(&opts->lock); | |
1016 | return ret; | |
1017 | } | |
1018 | ||
208e61ac | 1019 | CONFIGFS_ATTR(f_ss_opts_, isoc_maxpacket); |
25d80151 | 1020 | |
208e61ac | 1021 | static ssize_t f_ss_opts_isoc_mult_show(struct config_item *item, char *page) |
25d80151 | 1022 | { |
208e61ac | 1023 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1024 | int result; |
1025 | ||
1026 | mutex_lock(&opts->lock); | |
fa50bff6 | 1027 | result = sprintf(page, "%u\n", opts->isoc_mult); |
25d80151 AP |
1028 | mutex_unlock(&opts->lock); |
1029 | ||
1030 | return result; | |
1031 | } | |
1032 | ||
208e61ac | 1033 | static ssize_t f_ss_opts_isoc_mult_store(struct config_item *item, |
25d80151 AP |
1034 | const char *page, size_t len) |
1035 | { | |
208e61ac | 1036 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1037 | int ret; |
1038 | u8 num; | |
1039 | ||
1040 | mutex_lock(&opts->lock); | |
1041 | if (opts->refcnt) { | |
1042 | ret = -EBUSY; | |
1043 | goto end; | |
1044 | } | |
1045 | ||
1046 | ret = kstrtou8(page, 0, &num); | |
1047 | if (ret) | |
1048 | goto end; | |
1049 | ||
1050 | if (num > 2) { | |
1051 | ret = -EINVAL; | |
1052 | goto end; | |
1053 | } | |
1054 | ||
1055 | opts->isoc_mult = num; | |
1056 | ret = len; | |
1057 | end: | |
1058 | mutex_unlock(&opts->lock); | |
1059 | return ret; | |
1060 | } | |
1061 | ||
208e61ac | 1062 | CONFIGFS_ATTR(f_ss_opts_, isoc_mult); |
25d80151 | 1063 | |
208e61ac | 1064 | static ssize_t f_ss_opts_isoc_maxburst_show(struct config_item *item, char *page) |
25d80151 | 1065 | { |
208e61ac | 1066 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1067 | int result; |
1068 | ||
1069 | mutex_lock(&opts->lock); | |
fa50bff6 | 1070 | result = sprintf(page, "%u\n", opts->isoc_maxburst); |
25d80151 AP |
1071 | mutex_unlock(&opts->lock); |
1072 | ||
1073 | return result; | |
1074 | } | |
1075 | ||
208e61ac | 1076 | static ssize_t f_ss_opts_isoc_maxburst_store(struct config_item *item, |
25d80151 AP |
1077 | const char *page, size_t len) |
1078 | { | |
208e61ac | 1079 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1080 | int ret; |
1081 | u8 num; | |
1082 | ||
1083 | mutex_lock(&opts->lock); | |
1084 | if (opts->refcnt) { | |
1085 | ret = -EBUSY; | |
1086 | goto end; | |
1087 | } | |
1088 | ||
1089 | ret = kstrtou8(page, 0, &num); | |
1090 | if (ret) | |
1091 | goto end; | |
1092 | ||
1093 | if (num > 15) { | |
1094 | ret = -EINVAL; | |
1095 | goto end; | |
1096 | } | |
1097 | ||
1098 | opts->isoc_maxburst = num; | |
1099 | ret = len; | |
1100 | end: | |
1101 | mutex_unlock(&opts->lock); | |
1102 | return ret; | |
1103 | } | |
1104 | ||
208e61ac | 1105 | CONFIGFS_ATTR(f_ss_opts_, isoc_maxburst); |
25d80151 | 1106 | |
208e61ac | 1107 | static ssize_t f_ss_opts_bulk_buflen_show(struct config_item *item, char *page) |
25d80151 | 1108 | { |
208e61ac | 1109 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1110 | int result; |
1111 | ||
1112 | mutex_lock(&opts->lock); | |
fa50bff6 | 1113 | result = sprintf(page, "%u\n", opts->bulk_buflen); |
25d80151 AP |
1114 | mutex_unlock(&opts->lock); |
1115 | ||
1116 | return result; | |
1117 | } | |
1118 | ||
208e61ac | 1119 | static ssize_t f_ss_opts_bulk_buflen_store(struct config_item *item, |
25d80151 AP |
1120 | const char *page, size_t len) |
1121 | { | |
208e61ac | 1122 | struct f_ss_opts *opts = to_f_ss_opts(item); |
25d80151 AP |
1123 | int ret; |
1124 | u32 num; | |
1125 | ||
1126 | mutex_lock(&opts->lock); | |
1127 | if (opts->refcnt) { | |
1128 | ret = -EBUSY; | |
1129 | goto end; | |
1130 | } | |
1131 | ||
1132 | ret = kstrtou32(page, 0, &num); | |
1133 | if (ret) | |
1134 | goto end; | |
1135 | ||
1136 | opts->bulk_buflen = num; | |
1137 | ret = len; | |
1138 | end: | |
1139 | mutex_unlock(&opts->lock); | |
1140 | return ret; | |
1141 | } | |
1142 | ||
208e61ac | 1143 | CONFIGFS_ATTR(f_ss_opts_, bulk_buflen); |
25d80151 | 1144 | |
0d6c3d96 PC |
1145 | static ssize_t f_ss_opts_bulk_qlen_show(struct config_item *item, char *page) |
1146 | { | |
1147 | struct f_ss_opts *opts = to_f_ss_opts(item); | |
1148 | int result; | |
1149 | ||
1150 | mutex_lock(&opts->lock); | |
1151 | result = sprintf(page, "%u\n", opts->bulk_qlen); | |
1152 | mutex_unlock(&opts->lock); | |
1153 | ||
1154 | return result; | |
1155 | } | |
1156 | ||
1157 | static ssize_t f_ss_opts_bulk_qlen_store(struct config_item *item, | |
1158 | const char *page, size_t len) | |
1159 | { | |
1160 | struct f_ss_opts *opts = to_f_ss_opts(item); | |
1161 | int ret; | |
1162 | u32 num; | |
1163 | ||
1164 | mutex_lock(&opts->lock); | |
1165 | if (opts->refcnt) { | |
1166 | ret = -EBUSY; | |
1167 | goto end; | |
1168 | } | |
1169 | ||
1170 | ret = kstrtou32(page, 0, &num); | |
1171 | if (ret) | |
1172 | goto end; | |
1173 | ||
1174 | opts->bulk_qlen = num; | |
1175 | ret = len; | |
1176 | end: | |
1177 | mutex_unlock(&opts->lock); | |
1178 | return ret; | |
1179 | } | |
1180 | ||
1181 | CONFIGFS_ATTR(f_ss_opts_, bulk_qlen); | |
1182 | ||
1183 | static ssize_t f_ss_opts_iso_qlen_show(struct config_item *item, char *page) | |
1184 | { | |
1185 | struct f_ss_opts *opts = to_f_ss_opts(item); | |
1186 | int result; | |
1187 | ||
1188 | mutex_lock(&opts->lock); | |
1189 | result = sprintf(page, "%u\n", opts->iso_qlen); | |
1190 | mutex_unlock(&opts->lock); | |
1191 | ||
1192 | return result; | |
1193 | } | |
1194 | ||
1195 | static ssize_t f_ss_opts_iso_qlen_store(struct config_item *item, | |
1196 | const char *page, size_t len) | |
1197 | { | |
1198 | struct f_ss_opts *opts = to_f_ss_opts(item); | |
1199 | int ret; | |
1200 | u32 num; | |
1201 | ||
1202 | mutex_lock(&opts->lock); | |
1203 | if (opts->refcnt) { | |
1204 | ret = -EBUSY; | |
1205 | goto end; | |
1206 | } | |
1207 | ||
1208 | ret = kstrtou32(page, 0, &num); | |
1209 | if (ret) | |
1210 | goto end; | |
1211 | ||
1212 | opts->iso_qlen = num; | |
1213 | ret = len; | |
1214 | end: | |
1215 | mutex_unlock(&opts->lock); | |
1216 | return ret; | |
1217 | } | |
1218 | ||
1219 | CONFIGFS_ATTR(f_ss_opts_, iso_qlen); | |
1220 | ||
25d80151 | 1221 | static struct configfs_attribute *ss_attrs[] = { |
208e61ac CH |
1222 | &f_ss_opts_attr_pattern, |
1223 | &f_ss_opts_attr_isoc_interval, | |
1224 | &f_ss_opts_attr_isoc_maxpacket, | |
1225 | &f_ss_opts_attr_isoc_mult, | |
1226 | &f_ss_opts_attr_isoc_maxburst, | |
1227 | &f_ss_opts_attr_bulk_buflen, | |
0d6c3d96 PC |
1228 | &f_ss_opts_attr_bulk_qlen, |
1229 | &f_ss_opts_attr_iso_qlen, | |
25d80151 AP |
1230 | NULL, |
1231 | }; | |
1232 | ||
1233 | static struct config_item_type ss_func_type = { | |
1234 | .ct_item_ops = &ss_item_ops, | |
1235 | .ct_attrs = ss_attrs, | |
1236 | .ct_owner = THIS_MODULE, | |
1237 | }; | |
1238 | ||
9890e330 | 1239 | static void source_sink_free_instance(struct usb_function_instance *fi) |
544aca39 | 1240 | { |
cf9a08ae SAS |
1241 | struct f_ss_opts *ss_opts; |
1242 | ||
1243 | ss_opts = container_of(fi, struct f_ss_opts, func_inst); | |
1244 | kfree(ss_opts); | |
544aca39 | 1245 | } |
cf9a08ae SAS |
1246 | |
1247 | static struct usb_function_instance *source_sink_alloc_inst(void) | |
1248 | { | |
1249 | struct f_ss_opts *ss_opts; | |
1250 | ||
1251 | ss_opts = kzalloc(sizeof(*ss_opts), GFP_KERNEL); | |
1252 | if (!ss_opts) | |
1253 | return ERR_PTR(-ENOMEM); | |
25d80151 | 1254 | mutex_init(&ss_opts->lock); |
9890e330 | 1255 | ss_opts->func_inst.free_func_inst = source_sink_free_instance; |
25d80151 AP |
1256 | ss_opts->isoc_interval = GZERO_ISOC_INTERVAL; |
1257 | ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET; | |
1258 | ss_opts->bulk_buflen = GZERO_BULK_BUFLEN; | |
0d6c3d96 PC |
1259 | ss_opts->bulk_qlen = GZERO_SS_BULK_QLEN; |
1260 | ss_opts->iso_qlen = GZERO_SS_ISO_QLEN; | |
25d80151 AP |
1261 | |
1262 | config_group_init_type_name(&ss_opts->func_inst.group, "", | |
1263 | &ss_func_type); | |
1264 | ||
cf9a08ae SAS |
1265 | return &ss_opts->func_inst; |
1266 | } | |
1267 | DECLARE_USB_FUNCTION(SourceSink, source_sink_alloc_inst, | |
1268 | source_sink_alloc_func); | |
1269 | ||
1270 | static int __init sslb_modinit(void) | |
1271 | { | |
1272 | int ret; | |
1273 | ||
1274 | ret = usb_function_register(&SourceSinkusb_func); | |
1275 | if (ret) | |
1276 | return ret; | |
1277 | ret = lb_modinit(); | |
1278 | if (ret) | |
1279 | usb_function_unregister(&SourceSinkusb_func); | |
1280 | return ret; | |
1281 | } | |
1282 | static void __exit sslb_modexit(void) | |
1283 | { | |
1284 | usb_function_unregister(&SourceSinkusb_func); | |
1285 | lb_modexit(); | |
1286 | } | |
1287 | module_init(sslb_modinit); | |
1288 | module_exit(sslb_modexit); | |
1289 | ||
1290 | MODULE_LICENSE("GPL"); |