2 * Fusb300 UDC (USB gadget)
4 * Copyright (C) 2010 Faraday Technology Corp.
6 * Author : Yuan-hsin Chen <yhchen@faraday-tech.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <linux/dma-mapping.h>
23 #include <linux/err.h>
24 #include <linux/interrupt.h>
26 #include <linux/platform_device.h>
27 #include <linux/usb/ch9.h>
28 #include <linux/usb/gadget.h>
30 #include "fusb300_udc.h"
32 MODULE_DESCRIPTION("FUSB300 USB gadget driver");
33 MODULE_LICENSE("GPL");
34 MODULE_AUTHOR("Yuan Hsin Chen <yhchen@faraday-tech.com>");
35 MODULE_ALIAS("platform:fusb300_udc");
37 #define DRIVER_VERSION "20 October 2010"
39 static const char udc_name[] = "fusb300_udc";
40 static const char * const fusb300_ep_name[] = {
41 "ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7", "ep8", "ep9",
42 "ep10", "ep11", "ep12", "ep13", "ep14", "ep15"
45 static void done(struct fusb300_ep *ep, struct fusb300_request *req,
48 static void fusb300_enable_bit(struct fusb300 *fusb300, u32 offset,
51 u32 reg = ioread32(fusb300->reg + offset);
54 iowrite32(reg, fusb300->reg + offset);
57 static void fusb300_disable_bit(struct fusb300 *fusb300, u32 offset,
60 u32 reg = ioread32(fusb300->reg + offset);
63 iowrite32(reg, fusb300->reg + offset);
67 static void fusb300_ep_setting(struct fusb300_ep *ep,
68 struct fusb300_ep_info info)
70 ep->epnum = info.epnum;
74 static int fusb300_ep_release(struct fusb300_ep *ep)
84 static void fusb300_set_fifo_entry(struct fusb300 *fusb300,
87 u32 val = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
89 val &= ~FUSB300_EPSET1_FIFOENTRY_MSK;
90 val |= FUSB300_EPSET1_FIFOENTRY(FUSB300_FIFO_ENTRY_NUM);
91 iowrite32(val, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
94 static void fusb300_set_start_entry(struct fusb300 *fusb300,
97 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
98 u32 start_entry = fusb300->fifo_entry_num * FUSB300_FIFO_ENTRY_NUM;
100 reg &= ~FUSB300_EPSET1_START_ENTRY_MSK ;
101 reg |= FUSB300_EPSET1_START_ENTRY(start_entry);
102 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
103 if (fusb300->fifo_entry_num == FUSB300_MAX_FIFO_ENTRY) {
104 fusb300->fifo_entry_num = 0;
105 fusb300->addrofs = 0;
106 pr_err("fifo entry is over the maximum number!\n");
108 fusb300->fifo_entry_num++;
111 /* set fusb300_set_start_entry first before fusb300_set_epaddrofs */
112 static void fusb300_set_epaddrofs(struct fusb300 *fusb300,
113 struct fusb300_ep_info info)
115 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
117 reg &= ~FUSB300_EPSET2_ADDROFS_MSK;
118 reg |= FUSB300_EPSET2_ADDROFS(fusb300->addrofs);
119 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
120 fusb300->addrofs += (info.maxpacket + 7) / 8 * FUSB300_FIFO_ENTRY_NUM;
123 static void ep_fifo_setting(struct fusb300 *fusb300,
124 struct fusb300_ep_info info)
126 fusb300_set_fifo_entry(fusb300, info.epnum);
127 fusb300_set_start_entry(fusb300, info.epnum);
128 fusb300_set_epaddrofs(fusb300, info);
131 static void fusb300_set_eptype(struct fusb300 *fusb300,
132 struct fusb300_ep_info info)
134 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
136 reg &= ~FUSB300_EPSET1_TYPE_MSK;
137 reg |= FUSB300_EPSET1_TYPE(info.type);
138 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
141 static void fusb300_set_epdir(struct fusb300 *fusb300,
142 struct fusb300_ep_info info)
148 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
149 reg &= ~FUSB300_EPSET1_DIR_MSK;
150 reg |= FUSB300_EPSET1_DIRIN;
151 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
154 static void fusb300_set_ep_active(struct fusb300 *fusb300,
157 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
159 reg |= FUSB300_EPSET1_ACTEN;
160 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
163 static void fusb300_set_epmps(struct fusb300 *fusb300,
164 struct fusb300_ep_info info)
166 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
168 reg &= ~FUSB300_EPSET2_MPS_MSK;
169 reg |= FUSB300_EPSET2_MPS(info.maxpacket);
170 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
173 static void fusb300_set_interval(struct fusb300 *fusb300,
174 struct fusb300_ep_info info)
176 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
178 reg &= ~FUSB300_EPSET1_INTERVAL(0x7);
179 reg |= FUSB300_EPSET1_INTERVAL(info.interval);
180 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
183 static void fusb300_set_bwnum(struct fusb300 *fusb300,
184 struct fusb300_ep_info info)
186 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
188 reg &= ~FUSB300_EPSET1_BWNUM(0x3);
189 reg |= FUSB300_EPSET1_BWNUM(info.bw_num);
190 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
193 static void set_ep_reg(struct fusb300 *fusb300,
194 struct fusb300_ep_info info)
196 fusb300_set_eptype(fusb300, info);
197 fusb300_set_epdir(fusb300, info);
198 fusb300_set_epmps(fusb300, info);
201 fusb300_set_interval(fusb300, info);
204 fusb300_set_bwnum(fusb300, info);
206 fusb300_set_ep_active(fusb300, info.epnum);
209 static int config_ep(struct fusb300_ep *ep,
210 const struct usb_endpoint_descriptor *desc)
212 struct fusb300 *fusb300 = ep->fusb300;
213 struct fusb300_ep_info info;
221 info.type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
222 info.dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
223 info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
224 info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
226 if ((info.type == USB_ENDPOINT_XFER_INT) ||
227 (info.type == USB_ENDPOINT_XFER_ISOC)) {
228 info.interval = desc->bInterval;
229 if (info.type == USB_ENDPOINT_XFER_ISOC)
230 info.bw_num = ((desc->wMaxPacketSize & 0x1800) >> 11);
233 ep_fifo_setting(fusb300, info);
235 set_ep_reg(fusb300, info);
237 fusb300_ep_setting(ep, info);
239 fusb300->ep[info.epnum] = ep;
244 static int fusb300_enable(struct usb_ep *_ep,
245 const struct usb_endpoint_descriptor *desc)
247 struct fusb300_ep *ep;
249 ep = container_of(_ep, struct fusb300_ep, ep);
251 if (ep->fusb300->reenum) {
252 ep->fusb300->fifo_entry_num = 0;
253 ep->fusb300->addrofs = 0;
254 ep->fusb300->reenum = 0;
257 return config_ep(ep, desc);
260 static int fusb300_disable(struct usb_ep *_ep)
262 struct fusb300_ep *ep;
263 struct fusb300_request *req;
266 ep = container_of(_ep, struct fusb300_ep, ep);
270 while (!list_empty(&ep->queue)) {
271 req = list_entry(ep->queue.next, struct fusb300_request, queue);
272 spin_lock_irqsave(&ep->fusb300->lock, flags);
273 done(ep, req, -ECONNRESET);
274 spin_unlock_irqrestore(&ep->fusb300->lock, flags);
277 return fusb300_ep_release(ep);
280 static struct usb_request *fusb300_alloc_request(struct usb_ep *_ep,
283 struct fusb300_request *req;
285 req = kzalloc(sizeof(struct fusb300_request), gfp_flags);
288 INIT_LIST_HEAD(&req->queue);
293 static void fusb300_free_request(struct usb_ep *_ep, struct usb_request *_req)
295 struct fusb300_request *req;
297 req = container_of(_req, struct fusb300_request, req);
301 static int enable_fifo_int(struct fusb300_ep *ep)
303 struct fusb300 *fusb300 = ep->fusb300;
306 fusb300_enable_bit(fusb300, FUSB300_OFFSET_IGER0,
307 FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
309 pr_err("can't enable_fifo_int ep0\n");
316 static int disable_fifo_int(struct fusb300_ep *ep)
318 struct fusb300 *fusb300 = ep->fusb300;
321 fusb300_disable_bit(fusb300, FUSB300_OFFSET_IGER0,
322 FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
324 pr_err("can't disable_fifo_int ep0\n");
331 static void fusb300_set_cxlen(struct fusb300 *fusb300, u32 length)
335 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
336 reg &= ~FUSB300_CSR_LEN_MSK;
337 reg |= FUSB300_CSR_LEN(length);
338 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_CSR);
341 /* write data to cx fifo */
342 static void fusb300_wrcxf(struct fusb300_ep *ep,
343 struct fusb300_request *req)
348 struct fusb300 *fusb300 = ep->fusb300;
349 u32 length = req->req.length - req->req.actual;
351 tmp = req->req.buf + req->req.actual;
353 if (length > SS_CTL_MAX_PACKET_SIZE) {
354 fusb300_set_cxlen(fusb300, SS_CTL_MAX_PACKET_SIZE);
355 for (i = (SS_CTL_MAX_PACKET_SIZE >> 2); i > 0; i--) {
356 data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
358 iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
361 req->req.actual += SS_CTL_MAX_PACKET_SIZE;
362 } else { /* length is less than max packet size */
363 fusb300_set_cxlen(fusb300, length);
364 for (i = length >> 2; i > 0; i--) {
365 data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
367 printk(KERN_DEBUG " 0x%x\n", data);
368 iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
371 switch (length % 4) {
374 printk(KERN_DEBUG " 0x%x\n", data);
375 iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
378 data = *tmp | *(tmp + 1) << 8;
379 printk(KERN_DEBUG " 0x%x\n", data);
380 iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
383 data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
384 printk(KERN_DEBUG " 0x%x\n", data);
385 iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
390 req->req.actual += length;
394 static void fusb300_set_epnstall(struct fusb300 *fusb300, u8 ep)
396 fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
400 static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep)
402 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
404 if (reg & FUSB300_EPSET0_STL) {
405 printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep);
406 reg &= ~FUSB300_EPSET0_STL;
407 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
411 static void ep0_queue(struct fusb300_ep *ep, struct fusb300_request *req)
413 if (ep->fusb300->ep0_dir) { /* if IN */
414 if (req->req.length) {
415 fusb300_wrcxf(ep, req);
417 printk(KERN_DEBUG "%s : req->req.length = 0x%x\n",
418 __func__, req->req.length);
419 if ((req->req.length == req->req.actual) ||
420 (req->req.actual < ep->ep.maxpacket))
423 if (!req->req.length)
426 fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER1,
427 FUSB300_IGER1_CX_OUT_INT);
431 static int fusb300_queue(struct usb_ep *_ep, struct usb_request *_req,
434 struct fusb300_ep *ep;
435 struct fusb300_request *req;
439 ep = container_of(_ep, struct fusb300_ep, ep);
440 req = container_of(_req, struct fusb300_request, req);
442 if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
445 spin_lock_irqsave(&ep->fusb300->lock, flags);
447 if (list_empty(&ep->queue))
450 list_add_tail(&req->queue, &ep->queue);
453 req->req.status = -EINPROGRESS;
455 if (ep->desc == NULL) /* ep0 */
457 else if (request && !ep->stall)
460 spin_unlock_irqrestore(&ep->fusb300->lock, flags);
465 static int fusb300_dequeue(struct usb_ep *_ep, struct usb_request *_req)
467 struct fusb300_ep *ep;
468 struct fusb300_request *req;
471 ep = container_of(_ep, struct fusb300_ep, ep);
472 req = container_of(_req, struct fusb300_request, req);
474 spin_lock_irqsave(&ep->fusb300->lock, flags);
475 if (!list_empty(&ep->queue))
476 done(ep, req, -ECONNRESET);
477 spin_unlock_irqrestore(&ep->fusb300->lock, flags);
482 static int fusb300_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedge)
484 struct fusb300_ep *ep;
485 struct fusb300 *fusb300;
489 ep = container_of(_ep, struct fusb300_ep, ep);
491 fusb300 = ep->fusb300;
493 spin_lock_irqsave(&ep->fusb300->lock, flags);
495 if (!list_empty(&ep->queue)) {
501 fusb300_set_epnstall(fusb300, ep->epnum);
506 fusb300_clear_epnstall(fusb300, ep->epnum);
512 spin_unlock_irqrestore(&ep->fusb300->lock, flags);
516 static int fusb300_set_halt(struct usb_ep *_ep, int value)
518 return fusb300_set_halt_and_wedge(_ep, value, 0);
521 static int fusb300_set_wedge(struct usb_ep *_ep)
523 return fusb300_set_halt_and_wedge(_ep, 1, 1);
526 static void fusb300_fifo_flush(struct usb_ep *_ep)
530 static struct usb_ep_ops fusb300_ep_ops = {
531 .enable = fusb300_enable,
532 .disable = fusb300_disable,
534 .alloc_request = fusb300_alloc_request,
535 .free_request = fusb300_free_request,
537 .queue = fusb300_queue,
538 .dequeue = fusb300_dequeue,
540 .set_halt = fusb300_set_halt,
541 .fifo_flush = fusb300_fifo_flush,
542 .set_wedge = fusb300_set_wedge,
545 /*****************************************************************************/
546 static void fusb300_clear_int(struct fusb300 *fusb300, u32 offset,
549 iowrite32(value, fusb300->reg + offset);
552 static void fusb300_reset(void)
556 static void fusb300_set_cxstall(struct fusb300 *fusb300)
558 fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
562 static void fusb300_set_cxdone(struct fusb300 *fusb300)
564 fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
568 /* read data from cx fifo */
569 void fusb300_rdcxf(struct fusb300 *fusb300,
570 u8 *buffer, u32 length)
578 for (i = (length >> 2); i > 0; i--) {
579 data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
580 printk(KERN_DEBUG " 0x%x\n", data);
582 *(tmp + 1) = (data >> 8) & 0xFF;
583 *(tmp + 2) = (data >> 16) & 0xFF;
584 *(tmp + 3) = (data >> 24) & 0xFF;
588 switch (length % 4) {
590 data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
591 printk(KERN_DEBUG " 0x%x\n", data);
595 data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
596 printk(KERN_DEBUG " 0x%x\n", data);
598 *(tmp + 1) = (data >> 8) & 0xFF;
601 data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
602 printk(KERN_DEBUG " 0x%x\n", data);
604 *(tmp + 1) = (data >> 8) & 0xFF;
605 *(tmp + 2) = (data >> 16) & 0xFF;
613 static void fusb300_dbg_fifo(struct fusb300_ep *ep,
614 u8 entry, u16 length)
620 reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_GTM);
621 reg &= ~(FUSB300_GTM_TST_EP_ENTRY(0xF) |
622 FUSB300_GTM_TST_EP_NUM(0xF) | FUSB300_GTM_TST_FIFO_DEG);
623 reg |= (FUSB300_GTM_TST_EP_ENTRY(entry) |
624 FUSB300_GTM_TST_EP_NUM(ep->epnum) | FUSB300_GTM_TST_FIFO_DEG);
625 iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_GTM);
627 for (i = 0; i < (length >> 2); i++) {
630 reg = ioread32(ep->fusb300->reg +
631 FUSB300_OFFSET_BUFDBG_START + i * 4);
632 printk(KERN_DEBUG" 0x%-8x", reg);
635 printk(KERN_DEBUG "\n");
639 reg = ioread32(ep->fusb300->reg +
640 FUSB300_OFFSET_BUFDBG_START + i * 4);
641 printk(KERN_DEBUG " 0x%x\n", reg);
645 printk(KERN_DEBUG "\n");
647 fusb300_disable_bit(ep->fusb300, FUSB300_OFFSET_GTM,
648 FUSB300_GTM_TST_FIFO_DEG);
651 static void fusb300_cmp_dbg_fifo(struct fusb300_ep *ep,
652 u8 entry, u16 length, u8 *golden)
661 printk(KERN_DEBUG "fusb300_cmp_dbg_fifo (entry %d) : start\n", entry);
663 reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_GTM);
664 reg &= ~(FUSB300_GTM_TST_EP_ENTRY(0xF) |
665 FUSB300_GTM_TST_EP_NUM(0xF) | FUSB300_GTM_TST_FIFO_DEG);
666 reg |= (FUSB300_GTM_TST_EP_ENTRY(entry) |
667 FUSB300_GTM_TST_EP_NUM(ep->epnum) | FUSB300_GTM_TST_FIFO_DEG);
668 iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_GTM);
670 for (i = 0; i < (length >> 2); i++) {
673 golden_value = *tmp | *(tmp + 1) << 8 |
674 *(tmp + 2) << 16 | *(tmp + 3) << 24;
676 reg = ioread32(ep->fusb300->reg +
677 FUSB300_OFFSET_BUFDBG_START + i*4);
679 if (reg != golden_value) {
680 printk(KERN_DEBUG "0x%x : ", (u32)(ep->fusb300->reg +
681 FUSB300_OFFSET_BUFDBG_START + i*4));
682 printk(KERN_DEBUG " golden = 0x%x, reg = 0x%x\n",
688 switch (length % 4) {
692 golden_value = *tmp | *(tmp + 1) << 8;
694 golden_value = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
698 reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_BUFDBG_START + i*4);
699 if (reg != golden_value) {
700 printk(KERN_DEBUG "0x%x:", (u32)(ep->fusb300->reg +
701 FUSB300_OFFSET_BUFDBG_START + i*4));
702 printk(KERN_DEBUG " golden = 0x%x, reg = 0x%x\n",
707 printk(KERN_DEBUG "fusb300_cmp_dbg_fifo : end\n");
708 fusb300_disable_bit(ep->fusb300, FUSB300_OFFSET_GTM,
709 FUSB300_GTM_TST_FIFO_DEG);
713 static void fusb300_rdfifo(struct fusb300_ep *ep,
714 struct fusb300_request *req,
720 struct fusb300 *fusb300 = ep->fusb300;
722 tmp = req->req.buf + req->req.actual;
723 req->req.actual += length;
725 if (req->req.actual > req->req.length)
726 printk(KERN_DEBUG "req->req.actual > req->req.length\n");
728 for (i = (length >> 2); i > 0; i--) {
729 data = ioread32(fusb300->reg +
730 FUSB300_OFFSET_EPPORT(ep->epnum));
732 *(tmp + 1) = (data >> 8) & 0xFF;
733 *(tmp + 2) = (data >> 16) & 0xFF;
734 *(tmp + 3) = (data >> 24) & 0xFF;
738 switch (length % 4) {
740 data = ioread32(fusb300->reg +
741 FUSB300_OFFSET_EPPORT(ep->epnum));
745 data = ioread32(fusb300->reg +
746 FUSB300_OFFSET_EPPORT(ep->epnum));
748 *(tmp + 1) = (data >> 8) & 0xFF;
751 data = ioread32(fusb300->reg +
752 FUSB300_OFFSET_EPPORT(ep->epnum));
754 *(tmp + 1) = (data >> 8) & 0xFF;
755 *(tmp + 2) = (data >> 16) & 0xFF;
762 reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
763 reg &= FUSB300_IGR1_SYNF0_EMPTY_INT;
765 printk(KERN_INFO "sync fifo is not empty!\n");
770 static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep)
773 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
775 value = reg & FUSB300_EPSET0_STL;
780 static u8 fusb300_get_cxstall(struct fusb300 *fusb300)
783 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
785 value = (reg & FUSB300_CSR_STL) >> 1;
790 static void request_error(struct fusb300 *fusb300)
792 fusb300_set_cxstall(fusb300);
793 printk(KERN_DEBUG "request error!!\n");
796 static void get_status(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
797 __releases(fusb300->lock)
798 __acquires(fusb300->lock)
802 u16 w_index = ctrl->wIndex;
804 switch (ctrl->bRequestType & USB_RECIP_MASK) {
805 case USB_RECIP_DEVICE:
806 status = 1 << USB_DEVICE_SELF_POWERED;
808 case USB_RECIP_INTERFACE:
811 case USB_RECIP_ENDPOINT:
812 ep = w_index & USB_ENDPOINT_NUMBER_MASK;
814 if (fusb300_get_epnstall(fusb300, ep))
815 status = 1 << USB_ENDPOINT_HALT;
817 if (fusb300_get_cxstall(fusb300))
823 request_error(fusb300);
827 fusb300->ep0_data = cpu_to_le16(status);
828 fusb300->ep0_req->buf = &fusb300->ep0_data;
829 fusb300->ep0_req->length = 2;
831 spin_unlock(&fusb300->lock);
832 fusb300_queue(fusb300->gadget.ep0, fusb300->ep0_req, GFP_KERNEL);
833 spin_lock(&fusb300->lock);
836 static void set_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
840 switch (ctrl->bRequestType & USB_RECIP_MASK) {
841 case USB_RECIP_DEVICE:
842 fusb300_set_cxdone(fusb300);
844 case USB_RECIP_INTERFACE:
845 fusb300_set_cxdone(fusb300);
847 case USB_RECIP_ENDPOINT: {
848 u16 w_index = le16_to_cpu(ctrl->wIndex);
850 ep = w_index & USB_ENDPOINT_NUMBER_MASK;
852 fusb300_set_epnstall(fusb300, ep);
854 fusb300_set_cxstall(fusb300);
855 fusb300_set_cxdone(fusb300);
859 request_error(fusb300);
864 static void fusb300_clear_seqnum(struct fusb300 *fusb300, u8 ep)
866 fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
867 FUSB300_EPSET0_CLRSEQNUM);
870 static void clear_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
872 struct fusb300_ep *ep =
873 fusb300->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK];
875 switch (ctrl->bRequestType & USB_RECIP_MASK) {
876 case USB_RECIP_DEVICE:
877 fusb300_set_cxdone(fusb300);
879 case USB_RECIP_INTERFACE:
880 fusb300_set_cxdone(fusb300);
882 case USB_RECIP_ENDPOINT:
883 if (ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK) {
885 fusb300_set_cxdone(fusb300);
890 fusb300_clear_seqnum(fusb300, ep->epnum);
891 fusb300_clear_epnstall(fusb300, ep->epnum);
892 if (!list_empty(&ep->queue))
896 fusb300_set_cxdone(fusb300);
899 request_error(fusb300);
904 static void fusb300_set_dev_addr(struct fusb300 *fusb300, u16 addr)
906 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_DAR);
908 reg &= ~FUSB300_DAR_DRVADDR_MSK;
909 reg |= FUSB300_DAR_DRVADDR(addr);
911 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_DAR);
914 static void set_address(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
916 if (ctrl->wValue >= 0x0100)
917 request_error(fusb300);
919 fusb300_set_dev_addr(fusb300, ctrl->wValue);
920 fusb300_set_cxdone(fusb300);
924 #define UVC_COPY_DESCRIPTORS(mem, src) \
926 const struct usb_descriptor_header * const *__src; \
927 for (__src = src; *__src; ++__src) { \
928 memcpy(mem, *__src, (*__src)->bLength); \
929 mem += (*__src)->bLength; \
933 static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
939 fusb300_rdcxf(fusb300, p, 8);
940 fusb300->ep0_dir = ctrl->bRequestType & USB_DIR_IN;
941 fusb300->ep0_length = ctrl->wLength;
944 if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
945 switch (ctrl->bRequest) {
946 case USB_REQ_GET_STATUS:
947 get_status(fusb300, ctrl);
949 case USB_REQ_CLEAR_FEATURE:
950 clear_feature(fusb300, ctrl);
952 case USB_REQ_SET_FEATURE:
953 set_feature(fusb300, ctrl);
955 case USB_REQ_SET_ADDRESS:
956 set_address(fusb300, ctrl);
958 case USB_REQ_SET_CONFIGURATION:
959 fusb300_enable_bit(fusb300, FUSB300_OFFSET_DAR,
960 FUSB300_DAR_SETCONFG);
961 /* clear sequence number */
962 for (i = 1; i <= FUSB300_MAX_NUM_EP; i++)
963 fusb300_clear_seqnum(fusb300, i);
977 static void done(struct fusb300_ep *ep, struct fusb300_request *req,
980 list_del_init(&req->queue);
982 /* don't modify queue heads during completion callback */
983 if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
984 req->req.status = -ESHUTDOWN;
986 req->req.status = status;
988 spin_unlock(&ep->fusb300->lock);
989 req->req.complete(&ep->ep, &req->req);
990 spin_lock(&ep->fusb300->lock);
993 disable_fifo_int(ep);
994 if (!list_empty(&ep->queue))
997 fusb300_set_cxdone(ep->fusb300);
1000 static void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, dma_addr_t d,
1008 reg = ioread32(ep->fusb300->reg +
1009 FUSB300_OFFSET_EPPRD_W0(ep->epnum));
1010 reg &= FUSB300_EPPRD0_H;
1013 iowrite32(d, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W1(ep->epnum));
1015 value = FUSB300_EPPRD0_BTC(len) | FUSB300_EPPRD0_H |
1016 FUSB300_EPPRD0_F | FUSB300_EPPRD0_L | FUSB300_EPPRD0_I;
1017 iowrite32(value, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W0(ep->epnum));
1019 iowrite32(0x0, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W2(ep->epnum));
1021 fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_EPPRDRDY,
1022 FUSB300_EPPRDR_EP_PRD_RDY(ep->epnum));
1025 static void fusb300_wait_idma_finished(struct fusb300_ep *ep)
1030 reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR1);
1031 if ((reg & FUSB300_IGR1_VBUS_CHG_INT) ||
1032 (reg & FUSB300_IGR1_WARM_RST_INT) ||
1033 (reg & FUSB300_IGR1_HOT_RST_INT) ||
1034 (reg & FUSB300_IGR1_USBRST_INT)
1037 reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR0);
1038 reg &= FUSB300_IGR0_EPn_PRD_INT(ep->epnum);
1041 fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0,
1042 FUSB300_IGR0_EPn_PRD_INT(ep->epnum));
1044 fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0,
1045 FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
1048 static void fusb300_set_idma(struct fusb300_ep *ep,
1049 struct fusb300_request *req)
1053 d = dma_map_single(NULL, req->req.buf, req->req.length, DMA_TO_DEVICE);
1055 if (dma_mapping_error(NULL, d)) {
1056 printk(KERN_DEBUG "dma_mapping_error\n");
1060 dma_sync_single_for_device(NULL, d, req->req.length, DMA_TO_DEVICE);
1062 fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0,
1063 FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
1065 fusb300_fill_idma_prdtbl(ep, d, req->req.length);
1066 /* check idma is done */
1067 fusb300_wait_idma_finished(ep);
1069 dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE);
1072 static void in_ep_fifo_handler(struct fusb300_ep *ep)
1074 struct fusb300_request *req = list_entry(ep->queue.next,
1075 struct fusb300_request, queue);
1077 if (req->req.length)
1078 fusb300_set_idma(ep, req);
1082 static void out_ep_fifo_handler(struct fusb300_ep *ep)
1084 struct fusb300 *fusb300 = ep->fusb300;
1085 struct fusb300_request *req = list_entry(ep->queue.next,
1086 struct fusb300_request, queue);
1087 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum));
1088 u32 length = reg & FUSB300_FFR_BYCNT;
1090 fusb300_rdfifo(ep, req, length);
1092 /* finish out transfer */
1093 if ((req->req.length == req->req.actual) || (length < ep->ep.maxpacket))
1097 static void check_device_mode(struct fusb300 *fusb300)
1099 u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_GCR);
1101 switch (reg & FUSB300_GCR_DEVEN_MSK) {
1102 case FUSB300_GCR_DEVEN_SS:
1103 fusb300->gadget.speed = USB_SPEED_SUPER;
1105 case FUSB300_GCR_DEVEN_HS:
1106 fusb300->gadget.speed = USB_SPEED_HIGH;
1108 case FUSB300_GCR_DEVEN_FS:
1109 fusb300->gadget.speed = USB_SPEED_FULL;
1112 fusb300->gadget.speed = USB_SPEED_UNKNOWN;
1115 printk(KERN_INFO "dev_mode = %d\n", (reg & FUSB300_GCR_DEVEN_MSK));
1119 static void fusb300_ep0out(struct fusb300 *fusb300)
1121 struct fusb300_ep *ep = fusb300->ep[0];
1124 if (!list_empty(&ep->queue)) {
1125 struct fusb300_request *req;
1127 req = list_first_entry(&ep->queue,
1128 struct fusb300_request, queue);
1129 if (req->req.length)
1130 fusb300_rdcxf(ep->fusb300, req->req.buf,
1133 reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
1134 reg &= ~FUSB300_IGER1_CX_OUT_INT;
1135 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_IGER1);
1137 pr_err("%s : empty queue\n", __func__);
1140 static void fusb300_ep0in(struct fusb300 *fusb300)
1142 struct fusb300_request *req;
1143 struct fusb300_ep *ep = fusb300->ep[0];
1145 if ((!list_empty(&ep->queue)) && (fusb300->ep0_dir)) {
1146 req = list_entry(ep->queue.next,
1147 struct fusb300_request, queue);
1148 if (req->req.length)
1149 fusb300_wrcxf(ep, req);
1150 if ((req->req.length - req->req.actual) < ep->ep.maxpacket)
1153 fusb300_set_cxdone(fusb300);
1156 static void fusb300_grp2_handler(void)
1160 static void fusb300_grp3_handler(void)
1164 static void fusb300_grp4_handler(void)
1168 static void fusb300_grp5_handler(void)
1172 static irqreturn_t fusb300_irq(int irq, void *_fusb300)
1174 struct fusb300 *fusb300 = _fusb300;
1175 u32 int_grp1 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
1176 u32 int_grp1_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
1177 u32 int_grp0 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR0);
1178 u32 int_grp0_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER0);
1179 struct usb_ctrlrequest ctrl;
1184 spin_lock(&fusb300->lock);
1186 int_grp1 &= int_grp1_en;
1187 int_grp0 &= int_grp0_en;
1189 if (int_grp1 & FUSB300_IGR1_WARM_RST_INT) {
1190 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1191 FUSB300_IGR1_WARM_RST_INT);
1192 printk(KERN_INFO"fusb300_warmreset\n");
1196 if (int_grp1 & FUSB300_IGR1_HOT_RST_INT) {
1197 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1198 FUSB300_IGR1_HOT_RST_INT);
1199 printk(KERN_INFO"fusb300_hotreset\n");
1203 if (int_grp1 & FUSB300_IGR1_USBRST_INT) {
1204 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1205 FUSB300_IGR1_USBRST_INT);
1208 /* COMABT_INT has a highest priority */
1210 if (int_grp1 & FUSB300_IGR1_CX_COMABT_INT) {
1211 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1212 FUSB300_IGR1_CX_COMABT_INT);
1213 printk(KERN_INFO"fusb300_ep0abt\n");
1216 if (int_grp1 & FUSB300_IGR1_VBUS_CHG_INT) {
1217 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1218 FUSB300_IGR1_VBUS_CHG_INT);
1219 printk(KERN_INFO"fusb300_vbus_change\n");
1222 if (int_grp1 & FUSB300_IGR1_U3_EXIT_FAIL_INT) {
1223 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1224 FUSB300_IGR1_U3_EXIT_FAIL_INT);
1227 if (int_grp1 & FUSB300_IGR1_U2_EXIT_FAIL_INT) {
1228 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1229 FUSB300_IGR1_U2_EXIT_FAIL_INT);
1232 if (int_grp1 & FUSB300_IGR1_U1_EXIT_FAIL_INT) {
1233 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1234 FUSB300_IGR1_U1_EXIT_FAIL_INT);
1237 if (int_grp1 & FUSB300_IGR1_U2_ENTRY_FAIL_INT) {
1238 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1239 FUSB300_IGR1_U2_ENTRY_FAIL_INT);
1242 if (int_grp1 & FUSB300_IGR1_U1_ENTRY_FAIL_INT) {
1243 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1244 FUSB300_IGR1_U1_ENTRY_FAIL_INT);
1247 if (int_grp1 & FUSB300_IGR1_U3_EXIT_INT) {
1248 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1249 FUSB300_IGR1_U3_EXIT_INT);
1250 printk(KERN_INFO "FUSB300_IGR1_U3_EXIT_INT\n");
1253 if (int_grp1 & FUSB300_IGR1_U2_EXIT_INT) {
1254 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1255 FUSB300_IGR1_U2_EXIT_INT);
1256 printk(KERN_INFO "FUSB300_IGR1_U2_EXIT_INT\n");
1259 if (int_grp1 & FUSB300_IGR1_U1_EXIT_INT) {
1260 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1261 FUSB300_IGR1_U1_EXIT_INT);
1262 printk(KERN_INFO "FUSB300_IGR1_U1_EXIT_INT\n");
1265 if (int_grp1 & FUSB300_IGR1_U3_ENTRY_INT) {
1266 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1267 FUSB300_IGR1_U3_ENTRY_INT);
1268 printk(KERN_INFO "FUSB300_IGR1_U3_ENTRY_INT\n");
1269 fusb300_enable_bit(fusb300, FUSB300_OFFSET_SSCR1,
1270 FUSB300_SSCR1_GO_U3_DONE);
1273 if (int_grp1 & FUSB300_IGR1_U2_ENTRY_INT) {
1274 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1275 FUSB300_IGR1_U2_ENTRY_INT);
1276 printk(KERN_INFO "FUSB300_IGR1_U2_ENTRY_INT\n");
1279 if (int_grp1 & FUSB300_IGR1_U1_ENTRY_INT) {
1280 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1281 FUSB300_IGR1_U1_ENTRY_INT);
1282 printk(KERN_INFO "FUSB300_IGR1_U1_ENTRY_INT\n");
1285 if (int_grp1 & FUSB300_IGR1_RESM_INT) {
1286 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1287 FUSB300_IGR1_RESM_INT);
1288 printk(KERN_INFO "fusb300_resume\n");
1291 if (int_grp1 & FUSB300_IGR1_SUSP_INT) {
1292 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1293 FUSB300_IGR1_SUSP_INT);
1294 printk(KERN_INFO "fusb300_suspend\n");
1297 if (int_grp1 & FUSB300_IGR1_HS_LPM_INT) {
1298 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1299 FUSB300_IGR1_HS_LPM_INT);
1300 printk(KERN_INFO "fusb300_HS_LPM_INT\n");
1303 if (int_grp1 & FUSB300_IGR1_DEV_MODE_CHG_INT) {
1304 fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
1305 FUSB300_IGR1_DEV_MODE_CHG_INT);
1306 check_device_mode(fusb300);
1309 if (int_grp1 & FUSB300_IGR1_CX_COMFAIL_INT) {
1310 fusb300_set_cxstall(fusb300);
1311 printk(KERN_INFO "fusb300_ep0fail\n");
1314 if (int_grp1 & FUSB300_IGR1_CX_SETUP_INT) {
1315 printk(KERN_INFO "fusb300_ep0setup\n");
1316 if (setup_packet(fusb300, &ctrl)) {
1317 spin_unlock(&fusb300->lock);
1318 if (fusb300->driver->setup(&fusb300->gadget, &ctrl) < 0)
1319 fusb300_set_cxstall(fusb300);
1320 spin_lock(&fusb300->lock);
1324 if (int_grp1 & FUSB300_IGR1_CX_CMDEND_INT)
1325 printk(KERN_INFO "fusb300_cmdend\n");
1328 if (int_grp1 & FUSB300_IGR1_CX_OUT_INT) {
1329 printk(KERN_INFO "fusb300_cxout\n");
1330 fusb300_ep0out(fusb300);
1333 if (int_grp1 & FUSB300_IGR1_CX_IN_INT) {
1334 printk(KERN_INFO "fusb300_cxin\n");
1335 fusb300_ep0in(fusb300);
1338 if (int_grp1 & FUSB300_IGR1_INTGRP5)
1339 fusb300_grp5_handler();
1341 if (int_grp1 & FUSB300_IGR1_INTGRP4)
1342 fusb300_grp4_handler();
1344 if (int_grp1 & FUSB300_IGR1_INTGRP3)
1345 fusb300_grp3_handler();
1347 if (int_grp1 & FUSB300_IGR1_INTGRP2)
1348 fusb300_grp2_handler();
1351 for (i = 1; i < FUSB300_MAX_NUM_EP; i++) {
1352 if (int_grp0 & FUSB300_IGR0_EPn_FIFO_INT(i)) {
1353 reg = ioread32(fusb300->reg +
1354 FUSB300_OFFSET_EPSET1(i));
1355 in = (reg & FUSB300_EPSET1_DIRIN) ? 1 : 0;
1357 in_ep_fifo_handler(fusb300->ep[i]);
1359 out_ep_fifo_handler(fusb300->ep[i]);
1364 spin_unlock(&fusb300->lock);
1369 static void fusb300_set_u2_timeout(struct fusb300 *fusb300,
1374 reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
1376 reg |= FUSB300_SSCR2_U2TIMEOUT(time);
1378 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
1381 static void fusb300_set_u1_timeout(struct fusb300 *fusb300,
1386 reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
1387 reg &= ~(0xff << 8);
1388 reg |= FUSB300_SSCR2_U1TIMEOUT(time);
1390 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
1393 static void init_controller(struct fusb300 *fusb300)
1400 mask = val = FUSB300_AHBBCR_S0_SPLIT_ON | FUSB300_AHBBCR_S1_SPLIT_ON;
1401 reg = ioread32(fusb300->reg + FUSB300_OFFSET_AHBCR);
1404 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_AHBCR);
1406 /* enable high-speed LPM */
1407 mask = val = FUSB300_HSCR_HS_LPM_PERMIT;
1408 reg = ioread32(fusb300->reg + FUSB300_OFFSET_HSCR);
1411 iowrite32(reg, fusb300->reg + FUSB300_OFFSET_HSCR);
1413 /*set u1 u2 timmer*/
1414 fusb300_set_u2_timeout(fusb300, 0xff);
1415 fusb300_set_u1_timeout(fusb300, 0xff);
1417 /* enable all grp1 interrupt */
1418 iowrite32(0xcfffff9f, fusb300->reg + FUSB300_OFFSET_IGER1);
1420 /*------------------------------------------------------------------------*/
1421 static struct fusb300 *the_controller;
1423 static int fusb300_udc_start(struct usb_gadget_driver *driver,
1424 int (*bind)(struct usb_gadget *))
1426 struct fusb300 *fusb300 = the_controller;
1430 || driver->speed < USB_SPEED_FULL
1438 if (fusb300->driver)
1441 /* hook up the driver */
1442 driver->driver.bus = NULL;
1443 fusb300->driver = driver;
1444 fusb300->gadget.dev.driver = &driver->driver;
1446 retval = device_add(&fusb300->gadget.dev);
1448 pr_err("device_add error (%d)\n", retval);
1452 retval = bind(&fusb300->gadget);
1454 pr_err("bind to driver error (%d)\n", retval);
1455 device_del(&fusb300->gadget.dev);
1462 fusb300->driver = NULL;
1463 fusb300->gadget.dev.driver = NULL;
1468 static int fusb300_udc_stop(struct usb_gadget_driver *driver)
1470 struct fusb300 *fusb300 = the_controller;
1472 if (driver != fusb300->driver || !driver->unbind)
1475 driver->unbind(&fusb300->gadget);
1476 fusb300->gadget.dev.driver = NULL;
1478 init_controller(fusb300);
1479 device_del(&fusb300->gadget.dev);
1480 fusb300->driver = NULL;
1484 /*--------------------------------------------------------------------------*/
1486 static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active)
1491 static struct usb_gadget_ops fusb300_gadget_ops = {
1492 .pullup = fusb300_udc_pullup,
1493 .start = fusb300_udc_start,
1494 .stop = fusb300_udc_stop,
1497 static int __exit fusb300_remove(struct platform_device *pdev)
1499 struct fusb300 *fusb300 = dev_get_drvdata(&pdev->dev);
1501 usb_del_gadget_udc(&fusb300->gadget);
1502 iounmap(fusb300->reg);
1503 free_irq(platform_get_irq(pdev, 0), fusb300);
1505 fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
1511 static int __init fusb300_probe(struct platform_device *pdev)
1513 struct resource *res, *ires, *ires1;
1514 void __iomem *reg = NULL;
1515 struct fusb300 *fusb300 = NULL;
1516 struct fusb300_ep *_ep[FUSB300_MAX_NUM_EP];
1520 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1523 pr_err("platform_get_resource error.\n");
1527 ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1531 "platform_get_resource IORESOURCE_IRQ error.\n");
1535 ires1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
1539 "platform_get_resource IORESOURCE_IRQ 1 error.\n");
1543 reg = ioremap(res->start, resource_size(res));
1546 pr_err("ioremap error.\n");
1550 /* initialize udc */
1551 fusb300 = kzalloc(sizeof(struct fusb300), GFP_KERNEL);
1552 if (fusb300 == NULL) {
1553 pr_err("kzalloc error\n");
1557 for (i = 0; i < FUSB300_MAX_NUM_EP; i++) {
1558 _ep[i] = kzalloc(sizeof(struct fusb300_ep), GFP_KERNEL);
1559 if (_ep[i] == NULL) {
1560 pr_err("_ep kzalloc error\n");
1563 fusb300->ep[i] = _ep[i];
1566 spin_lock_init(&fusb300->lock);
1568 dev_set_drvdata(&pdev->dev, fusb300);
1570 fusb300->gadget.ops = &fusb300_gadget_ops;
1572 device_initialize(&fusb300->gadget.dev);
1574 dev_set_name(&fusb300->gadget.dev, "gadget");
1576 fusb300->gadget.is_dualspeed = 1;
1577 fusb300->gadget.dev.parent = &pdev->dev;
1578 fusb300->gadget.dev.dma_mask = pdev->dev.dma_mask;
1579 fusb300->gadget.dev.release = pdev->dev.release;
1580 fusb300->gadget.name = udc_name;
1583 ret = request_irq(ires->start, fusb300_irq, IRQF_DISABLED | IRQF_SHARED,
1586 pr_err("request_irq error (%d)\n", ret);
1590 ret = request_irq(ires1->start, fusb300_irq,
1591 IRQF_DISABLED | IRQF_SHARED, udc_name, fusb300);
1593 pr_err("request_irq1 error (%d)\n", ret);
1597 INIT_LIST_HEAD(&fusb300->gadget.ep_list);
1599 for (i = 0; i < FUSB300_MAX_NUM_EP ; i++) {
1600 struct fusb300_ep *ep = fusb300->ep[i];
1603 INIT_LIST_HEAD(&fusb300->ep[i]->ep.ep_list);
1604 list_add_tail(&fusb300->ep[i]->ep.ep_list,
1605 &fusb300->gadget.ep_list);
1607 ep->fusb300 = fusb300;
1608 INIT_LIST_HEAD(&ep->queue);
1609 ep->ep.name = fusb300_ep_name[i];
1610 ep->ep.ops = &fusb300_ep_ops;
1611 ep->ep.maxpacket = HS_BULK_MAX_PACKET_SIZE;
1613 fusb300->ep[0]->ep.maxpacket = HS_CTL_MAX_PACKET_SIZE;
1614 fusb300->ep[0]->epnum = 0;
1615 fusb300->gadget.ep0 = &fusb300->ep[0]->ep;
1616 INIT_LIST_HEAD(&fusb300->gadget.ep0->ep_list);
1618 the_controller = fusb300;
1620 fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep,
1622 if (fusb300->ep0_req == NULL)
1625 init_controller(fusb300);
1626 ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget);
1630 dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
1634 fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
1637 free_irq(ires->start, fusb300);
1641 if (fusb300->ep0_req)
1642 fusb300_free_request(&fusb300->ep[0]->ep,
1652 static struct platform_driver fusb300_driver = {
1653 .remove = __exit_p(fusb300_remove),
1655 .name = (char *) udc_name,
1656 .owner = THIS_MODULE,
1660 static int __init fusb300_udc_init(void)
1662 return platform_driver_probe(&fusb300_driver, fusb300_probe);
1665 module_init(fusb300_udc_init);
1667 static void __exit fusb300_udc_cleanup(void)
1669 platform_driver_unregister(&fusb300_driver);
1671 module_exit(fusb300_udc_cleanup);