1
/*****************************************************************************
2
* Copyright (c) 2013 IBM Corporation
4
* This program and the accompanying materials
5
* are made available under the terms of the BSD License
6
* which accompanies this distribution, and is available at
7
* http://www.opensource.org/licenses/bsd-license.php
10
* IBM Corporation - initial implementation
11
*****************************************************************************/
19
#define dprintf(_x ...) do { printf(_x); } while(0)
21
#define dprintf(_x ...)
24
#define __unused __attribute__((unused))
26
struct usb_hcd_ops *head;
27
struct usb_dev *devpool;
28
#define USB_DEVPOOL_SIZE 4096
30
static struct usb_dev *usb_alloc_devpool(void)
32
struct usb_dev *head, *curr, *prev;
33
unsigned int dev_count = 0, i;
35
head = SLOF_alloc_mem(USB_DEVPOOL_SIZE);
39
dev_count = USB_DEVPOOL_SIZE/sizeof(struct usb_dev);
40
dprintf("%s: %d number of devices\n", __func__, dev_count);
41
/* Although an array, link them*/
42
for (i = 0, curr = head, prev = NULL; i < dev_count; i++, curr++) {
50
for (i = 0, curr = head; curr; curr = curr->next)
51
printf("%s: %d dev %p\n", __func__, i++, curr);
57
struct usb_dev *usb_devpool_get(void)
62
devpool = usb_alloc_devpool();
68
devpool = devpool->next;
69
memset(new, 0, sizeof(*new));
74
void usb_devpool_put(struct usb_dev *dev)
88
#define validate_hcd_ops(dev) (dev && dev->hcidev && dev->hcidev->ops)
90
int validate_hcd_ops(struct usb_dev *dev)
95
printf("dev is NULL\n");
97
} else if (!dev->hcidev) {
98
printf("hcidev is NULL\n");
100
} else if (!dev->hcidev->ops) {
101
printf("ops is NULL\n");
108
struct usb_pipe *usb_get_pipe(struct usb_dev *dev, struct usb_ep_descr *ep,
109
char *buf, size_t len)
111
if (validate_hcd_ops(dev) && dev->hcidev->ops->get_pipe)
112
return dev->hcidev->ops->get_pipe(dev, ep, buf, len);
114
printf("%s: Failed\n", __func__);
119
void usb_put_pipe(struct usb_pipe *pipe)
121
struct usb_dev *dev = NULL;
122
if (pipe && pipe->dev) {
124
if (validate_hcd_ops(dev) && dev->hcidev->ops->put_pipe)
125
dev->hcidev->ops->put_pipe(pipe);
129
int usb_poll_intr(struct usb_pipe *pipe, uint8_t *buf)
131
struct usb_dev *dev = NULL;
132
if (pipe && pipe->dev) {
134
if (validate_hcd_ops(dev) && dev->hcidev->ops->poll_intr)
135
return dev->hcidev->ops->poll_intr(pipe, buf);
140
void usb_hcd_register(struct usb_hcd_ops *ops)
142
struct usb_hcd_ops *list;
146
dprintf("Registering %s %d\n", ops->name, ops->usb_type);
157
void usb_hcd_init(void *hcidev)
159
struct usb_hcd_dev *dev = hcidev;
160
struct usb_hcd_ops *list = head;
163
printf("Device Error");
168
if (list->usb_type == dev->type) {
169
dprintf("usb_ops(%p) for the controller found\n", list);
177
dprintf("usb_ops for the controller not found\n");
180
void usb_hcd_exit(void *_hcidev)
182
struct usb_hcd_dev *hcidev = _hcidev;
184
dprintf("%s: enter \n", __func__);
186
printf("Device Error");
190
if (hcidev->ops->exit)
191
hcidev->ops->exit(hcidev);
194
int usb_send_ctrl(struct usb_pipe *pipe, struct usb_dev_req *req, void *data)
196
struct usb_dev *dev = NULL;
200
if (validate_hcd_ops(dev) && dev->hcidev->ops->send_ctrl)
201
return dev->hcidev->ops->send_ctrl(pipe, req, data);
203
printf("%s: Failed\n", __func__);
208
int usb_transfer_ctrl(void *dev, void *req, void *data)
210
struct usb_pipe *pipe = NULL;
211
struct usb_dev *usbdev;
215
usbdev = (struct usb_dev *)dev;
216
pipe = usbdev->control;
217
return usb_send_ctrl(pipe, req, data);
220
int usb_transfer_bulk(void *dev, int dir, void *td, void *td_phys, void *data, int size)
222
struct usb_pipe *pipe = NULL;
223
struct usb_dev *usbdev;
227
usbdev = (struct usb_dev *)dev;
228
pipe = (dir == USB_PIPE_OUT) ? usbdev->bulk_out : usbdev->bulk_in;
231
if (validate_hcd_ops(usbdev) && usbdev->hcidev->ops->transfer_bulk)
232
return usbdev->hcidev->ops->transfer_bulk(pipe, td, td_phys, data, size);
234
printf("%s: Failed\n", __func__);
240
* USB Specification 1.1
241
* 9.3 USB Device Requests
242
* 9.4 Standard Device Requests
244
static int usb_set_address(struct usb_dev *dev, uint32_t port)
246
struct usb_dev_req req;
247
struct usb_hcd_dev *hcidev;
252
hcidev = dev->hcidev;
253
req.bmRequestType = 0;
254
req.bRequest = REQ_SET_ADDRESS;
257
req.wValue = cpu_to_le16((uint16_t)(hcidev->nextaddr));
258
if (usb_send_ctrl(dev->control, &req, NULL)) {
259
dev->addr = hcidev->nextaddr++;
265
static int usb_get_device_descr(struct usb_dev *dev, void *data, size_t size)
267
struct usb_dev_req req;
272
req.bmRequestType = 0x80;
273
req.bRequest = REQ_GET_DESCRIPTOR;
275
req.wLength = cpu_to_le16((uint16_t) size);
276
req.wValue = cpu_to_le16(DESCR_TYPE_DEVICE << 8);
277
return usb_send_ctrl(dev->control, &req, data);
280
static int usb_get_config_descr(struct usb_dev *dev, void *data, size_t size)
282
struct usb_dev_req req;
287
req.bmRequestType = 0x80;
288
req.bRequest = REQ_GET_DESCRIPTOR;
290
req.wLength = cpu_to_le16((uint16_t) size);
291
req.wValue = cpu_to_le16(DESCR_TYPE_CONFIGURATION << 8);
292
return usb_send_ctrl(dev->control, &req, data);
296
static int usb_set_config(struct usb_dev *dev, uint8_t cfg_value)
298
struct usb_dev_req req;
303
req.bmRequestType = 0x00;
304
req.bRequest = REQ_SET_CONFIGURATION;
307
req.wValue = cpu_to_le16(0x00FF & cfg_value);
308
return usb_send_ctrl(dev->control, &req, NULL);
311
static int usb_clear_halt(struct usb_pipe *pipe)
313
struct usb_dev_req req;
316
if (pipe && pipe->dev) {
318
dprintf("Clearing port %d dir %d type %d\n",
319
pipe->epno, pipe->dir, pipe->type);
320
req.bmRequestType = REQT_DIR_OUT | REQT_REC_EP;
321
req.bRequest = REQ_CLEAR_FEATURE;
322
req.wValue = FEATURE_ENDPOINT_HALT;
323
req.wIndex = cpu_to_le16(pipe->epno | pipe->dir);
325
return usb_send_ctrl(dev->control, &req, NULL);
330
int usb_dev_populate_pipe(struct usb_dev *dev, struct usb_ep_descr *ep,
331
void *buf, size_t len)
335
dir = (ep->bEndpointAddress & 0x80) >> 7;
336
type = ep->bmAttributes & USB_EP_TYPE_MASK;
338
dprintf("EP: %s: %d size %d type %d\n", dir ? "IN " : "OUT",
339
ep->bEndpointAddress & 0xF, le16_to_cpu(ep->wMaxPacketSize),
341
if (type == USB_EP_TYPE_BULK) {
343
dev->bulk_in = usb_get_pipe(dev, ep, buf, len);
345
dev->bulk_out = usb_get_pipe(dev, ep, buf, len);
346
} else if (type == USB_EP_TYPE_INTR)
347
dev->intr = usb_get_pipe(dev, ep, buf, len);
352
static void usb_dev_copy_epdesc(struct usb_dev *dev, struct usb_ep_descr *ep)
356
ep_cnt = dev->ep_cnt;
357
if (ep_cnt < USB_DEV_EP_MAX)
358
memcpy((void *)&dev->ep[ep_cnt], ep, sizeof(*ep));
360
dprintf("usb-core: only %d EPs supported\n", USB_DEV_EP_MAX);
364
int usb_hid_init(void *vdev)
367
dev = (struct usb_dev *) vdev;
370
if (dev->class == DEV_HID_KEYB)
371
usb_hid_kbd_init(dev);
375
int usb_hid_exit(void *vdev)
378
dev = (struct usb_dev *) vdev;
381
if (dev->class == DEV_HID_KEYB)
382
usb_hid_kbd_exit(dev);
386
int usb_msc_init(void *vdev)
391
dev = (struct usb_dev *) vdev;
392
dprintf("%s: enter %x\n", __func__, dev->class);
395
if (usb_get_intf_class(dev->class) == 8) {
396
for (i = 0; i < dev->ep_cnt; i++) {
397
if ((dev->ep[i].bmAttributes & USB_EP_TYPE_MASK)
399
usb_dev_populate_pipe(dev, &dev->ep[i], NULL, 0);
405
int usb_msc_exit(void *vdev)
408
dev = (struct usb_dev *) vdev;
409
dprintf("%s: enter %x\n", __func__, dev->class);
412
if (usb_get_intf_class(dev->class) == 8) {
414
usb_put_pipe(dev->bulk_in);
416
usb_put_pipe(dev->bulk_out);
421
int usb_msc_reset(struct usb_dev *dev)
423
struct usb_dev_req req;
428
req.bmRequestType = REQT_TYPE_CLASS | REQT_REC_INTERFACE | REQT_DIR_OUT;
432
req.wIndex = cpu_to_le16(dev->intf_num);
433
return usb_send_ctrl(dev->control, &req, NULL);
436
void usb_msc_resetrecovery(struct usb_dev *dev)
438
// usb_msc_reset(dev);
439
usb_clear_halt(dev->bulk_in);
440
usb_clear_halt(dev->bulk_out);
444
static int usb_handle_device(struct usb_dev *dev, struct usb_dev_config_descr *cfg,
445
uint8_t *ptr, uint16_t len)
447
struct usb_dev_intf_descr *intf = NULL;
448
struct usb_ep_descr *ep = NULL;
449
struct usb_dev_hid_descr *hid __unused = NULL;
450
uint8_t desc_len, desc_type;
452
len -= sizeof(struct usb_dev_config_descr);
453
ptr = (uint8_t *)(ptr + sizeof(struct usb_dev_config_descr));
457
desc_type = *(ptr + 1);
459
case DESCR_TYPE_INTERFACE:
460
intf = (struct usb_dev_intf_descr *)ptr;
461
dev->class = intf->bInterfaceClass << 16 |
462
intf->bInterfaceSubClass << 8 |
463
intf->bInterfaceProtocol;
465
case DESCR_TYPE_ENDPOINT:
466
ep = (struct usb_ep_descr *)ptr;
467
dev->intf_num = intf->bInterfaceNumber;
468
usb_dev_copy_epdesc(dev, ep);
471
hid = (struct usb_dev_hid_descr *)ptr;
472
dprintf("hid-report %d size %d\n",
473
hid->bReportType, le16_to_cpu(hid->wReportLength));
478
dprintf("ptr %p desc_type %d\n", ptr, desc_type);
486
int usb_setup_new_device(struct usb_dev *dev, unsigned int port)
488
struct usb_dev_descr descr;
489
struct usb_dev_config_descr cfg;
490
struct usb_ep_descr ep;
494
dprintf("usb: %s - port %d\n", __func__, port);
498
ep.bEndpointAddress = 0;
499
ep.bmAttributes = USB_EP_TYPE_CONTROL;
500
ep.wMaxPacketSize = cpu_to_le16(8);
501
dev->control = usb_get_pipe(dev, &ep, NULL, 0);
503
if (!usb_get_device_descr(dev, &descr, 8))
505
dev->control->mps = descr.bMaxPacketSize0;
508
* For USB3.0 ADDRESS-SLOT command takes care of setting
509
* address, skip this during generic device setup for USB3.0
512
if (dev->speed != USB_SUPER_SPEED) {
514
* Qemu starts the port number from 1 which was
515
* revealed in bootindex and resulted in mismatch for
516
* storage devices names. Adjusting this here for
519
dev->port = port + 1;
520
if(!usb_set_address(dev, dev->port))
526
if (!usb_get_device_descr(dev, &descr, sizeof(struct usb_dev_descr)))
529
if (!usb_get_config_descr(dev, &cfg, sizeof(struct usb_dev_config_descr)))
532
len = le16_to_cpu(cfg.wTotalLength);
533
/* No device config descriptor present */
534
if (len == sizeof(struct usb_dev_config_descr))
537
data = SLOF_dma_alloc(len);
539
printf("%s: alloc failed %d\n", __func__, port);
543
if (!usb_get_config_descr(dev, data, len))
545
if (!usb_set_config(dev, cfg.bConfigurationValue))
550
if (!usb_handle_device(dev, &cfg, data, len))
553
SLOF_dma_free(data, len);
556
SLOF_dma_free(data, len);