2 * R8A66597 HCD (Host Controller Driver)
4 * Copyright (C) 2006-2007 Renesas Solutions Corp.
5 * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
6 * Portions Copyright (C) 2004-2005 David Brownell
7 * Portions Copyright (C) 1999 Roman Weissgaerber
9 * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; version 2 of the License.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include <linux/module.h>
27 #include <linux/kernel.h>
28 #include <linux/sched.h>
29 #include <linux/errno.h>
30 #include <linux/init.h>
31 #include <linux/timer.h>
32 #include <linux/delay.h>
33 #include <linux/list.h>
34 #include <linux/interrupt.h>
35 #include <linux/usb.h>
36 #include <linux/usb/hcd.h>
37 #include <linux/platform_device.h>
40 #include <linux/irq.h>
41 #include <linux/slab.h>
42 #include <asm/cacheflush.h>
46 MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
47 MODULE_LICENSE("GPL");
48 MODULE_AUTHOR("Yoshihiro Shimoda");
49 MODULE_ALIAS("platform:r8a66597_hcd");
51 #define DRIVER_VERSION "2009-05-26"
53 static const char hcd_name[] = "r8a66597_hcd";
55 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
56 static int r8a66597_get_frame(struct usb_hcd *hcd);
58 /* this function must be called with interrupt disabled */
59 static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
64 tmp = r8a66597_read(r8a66597, INTENB0);
65 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
66 r8a66597_bset(r8a66597, 1 << pipenum, reg);
67 r8a66597_write(r8a66597, tmp, INTENB0);
70 /* this function must be called with interrupt disabled */
71 static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
76 tmp = r8a66597_read(r8a66597, INTENB0);
77 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
78 r8a66597_bclr(r8a66597, 1 << pipenum, reg);
79 r8a66597_write(r8a66597, tmp, INTENB0);
82 static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
83 u16 usbspd, u8 upphub, u8 hubport, int port)
86 unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
88 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
89 r8a66597_write(r8a66597, val, devadd_reg);
92 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
97 if (r8a66597->pdata->on_chip) {
98 clk_enable(r8a66597->clk);
100 r8a66597_write(r8a66597, SCKE, SYSCFG0);
101 tmp = r8a66597_read(r8a66597, SYSCFG0);
103 printk(KERN_ERR "r8a66597: reg access fail.\n");
106 } while ((tmp & SCKE) != SCKE);
107 r8a66597_write(r8a66597, 0x04, 0x02);
110 r8a66597_write(r8a66597, USBE, SYSCFG0);
111 tmp = r8a66597_read(r8a66597, SYSCFG0);
113 printk(KERN_ERR "r8a66597: reg access fail.\n");
116 } while ((tmp & USBE) != USBE);
117 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
118 r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
122 r8a66597_bset(r8a66597, XCKE, SYSCFG0);
125 tmp = r8a66597_read(r8a66597, SYSCFG0);
127 printk(KERN_ERR "r8a66597: reg access fail.\n");
130 } while ((tmp & SCKE) != SCKE);
136 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
138 r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
141 if (r8a66597->pdata->on_chip) {
142 clk_disable(r8a66597->clk);
144 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
145 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
146 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
150 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
154 val = port ? DRPD : DCFM | DRPD;
155 r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
156 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
158 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
159 r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port));
160 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
163 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
167 r8a66597_write(r8a66597, 0, get_intenb_reg(port));
168 r8a66597_write(r8a66597, 0, get_intsts_reg(port));
170 r8a66597_port_power(r8a66597, port, 0);
173 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
175 } while (tmp == EDGESTS);
177 val = port ? DRPD : DCFM | DRPD;
178 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
179 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
182 static int enable_controller(struct r8a66597 *r8a66597)
185 u16 vif = r8a66597->pdata->vif ? LDRV : 0;
186 u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
187 u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
189 ret = r8a66597_clock_enable(r8a66597);
193 r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
194 r8a66597_bset(r8a66597, USBE, SYSCFG0);
196 r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
197 r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG);
198 r8a66597_bset(r8a66597, BRDY0, BRDYENB);
199 r8a66597_bset(r8a66597, BEMP0, BEMPENB);
201 r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
202 r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
203 r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
204 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
206 r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1);
208 for (port = 0; port < r8a66597->max_root_hub; port++)
209 r8a66597_enable_port(r8a66597, port);
214 static void disable_controller(struct r8a66597 *r8a66597)
218 /* disable interrupts */
219 r8a66597_write(r8a66597, 0, INTENB0);
220 r8a66597_write(r8a66597, 0, INTENB1);
221 r8a66597_write(r8a66597, 0, BRDYENB);
222 r8a66597_write(r8a66597, 0, BEMPENB);
223 r8a66597_write(r8a66597, 0, NRDYENB);
226 r8a66597_write(r8a66597, 0, BRDYSTS);
227 r8a66597_write(r8a66597, 0, NRDYSTS);
228 r8a66597_write(r8a66597, 0, BEMPSTS);
230 for (port = 0; port < r8a66597->max_root_hub; port++)
231 r8a66597_disable_port(r8a66597, port);
233 r8a66597_clock_disable(r8a66597);
236 static int get_parent_r8a66597_address(struct r8a66597 *r8a66597,
237 struct usb_device *udev)
239 struct r8a66597_device *dev;
241 if (udev->parent && udev->parent->devnum != 1)
244 dev = dev_get_drvdata(&udev->dev);
251 static int is_child_device(char *devpath)
253 return (devpath[2] ? 1 : 0);
256 static int is_hub_limit(char *devpath)
258 return ((strlen(devpath) >= 4) ? 1 : 0);
261 static void get_port_number(struct r8a66597 *r8a66597,
262 char *devpath, u16 *root_port, u16 *hub_port)
265 *root_port = (devpath[0] & 0x0F) - 1;
266 if (*root_port >= r8a66597->max_root_hub)
267 printk(KERN_ERR "r8a66597: Illegal root port number.\n");
270 *hub_port = devpath[2] & 0x0F;
273 static u16 get_r8a66597_usb_speed(enum usb_device_speed speed)
288 printk(KERN_ERR "r8a66597: unknown speed\n");
295 static void set_child_connect_map(struct r8a66597 *r8a66597, int address)
300 r8a66597->child_connect_map[idx] |= 1 << (address % 32);
303 static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
308 r8a66597->child_connect_map[idx] &= ~(1 << (address % 32));
311 static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
313 u16 pipenum = pipe->info.pipenum;
314 const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
315 const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
316 const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
318 if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */
319 dma_ch = R8A66597_PIPE_NO_DMA;
321 pipe->fifoaddr = fifoaddr[dma_ch];
322 pipe->fifosel = fifosel[dma_ch];
323 pipe->fifoctr = fifoctr[dma_ch];
326 pipe->pipectr = DCPCTR;
328 pipe->pipectr = get_pipectr_addr(pipenum);
330 if (check_bulk_or_isoc(pipenum)) {
331 pipe->pipetre = get_pipetre_addr(pipenum);
332 pipe->pipetrn = get_pipetrn_addr(pipenum);
339 static struct r8a66597_device *
340 get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb)
342 if (usb_pipedevice(urb->pipe) == 0)
343 return &r8a66597->device0;
345 return dev_get_drvdata(&urb->dev->dev);
348 static int make_r8a66597_device(struct r8a66597 *r8a66597,
349 struct urb *urb, u8 addr)
351 struct r8a66597_device *dev;
352 int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */
354 dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC);
358 dev_set_drvdata(&urb->dev->dev, dev);
359 dev->udev = urb->dev;
361 dev->usb_address = usb_address;
362 dev->state = USB_STATE_ADDRESS;
363 dev->ep_in_toggle = 0;
364 dev->ep_out_toggle = 0;
365 INIT_LIST_HEAD(&dev->device_list);
366 list_add_tail(&dev->device_list, &r8a66597->child_device);
368 get_port_number(r8a66597, urb->dev->devpath,
369 &dev->root_port, &dev->hub_port);
370 if (!is_child_device(urb->dev->devpath))
371 r8a66597->root_hub[dev->root_port].dev = dev;
373 set_devadd_reg(r8a66597, dev->address,
374 get_r8a66597_usb_speed(urb->dev->speed),
375 get_parent_r8a66597_address(r8a66597, urb->dev),
376 dev->hub_port, dev->root_port);
381 /* this function must be called with interrupt disabled */
382 static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb)
384 u8 addr; /* R8A66597's address */
385 struct r8a66597_device *dev;
387 if (is_hub_limit(urb->dev->devpath)) {
388 dev_err(&urb->dev->dev, "External hub limit reached.\n");
392 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
393 if (dev && dev->state >= USB_STATE_ADDRESS)
396 for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) {
397 if (r8a66597->address_map & (1 << addr))
400 dev_dbg(&urb->dev->dev, "alloc_address: r8a66597_addr=%d\n", addr);
401 r8a66597->address_map |= 1 << addr;
403 if (make_r8a66597_device(r8a66597, urb, addr) < 0)
409 dev_err(&urb->dev->dev,
410 "cannot communicate with a USB device more than 10.(%x)\n",
411 r8a66597->address_map);
416 /* this function must be called with interrupt disabled */
417 static void free_usb_address(struct r8a66597 *r8a66597,
418 struct r8a66597_device *dev, int reset)
425 dev_dbg(&dev->udev->dev, "free_addr: addr=%d\n", dev->address);
427 dev->state = USB_STATE_DEFAULT;
428 r8a66597->address_map &= ~(1 << dev->address);
431 * Only when resetting USB, it is necessary to erase drvdata. When
432 * a usb device with usb hub is disconnect, "dev->udev" is already
433 * freed on usb_desconnect(). So we cannot access the data.
436 dev_set_drvdata(&dev->udev->dev, NULL);
437 list_del(&dev->device_list);
440 for (port = 0; port < r8a66597->max_root_hub; port++) {
441 if (r8a66597->root_hub[port].dev == dev) {
442 r8a66597->root_hub[port].dev = NULL;
448 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
455 tmp = r8a66597_read(r8a66597, reg);
457 printk(KERN_ERR "r8a66597: register%lx, loop %x "
458 "is timeout\n", reg, loop);
462 } while ((tmp & mask) != loop);
465 /* this function must be called with interrupt disabled */
466 static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
470 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
471 if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */
472 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
473 r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
476 /* this function must be called with interrupt disabled */
477 static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
481 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
482 if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */
483 r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr);
484 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
485 r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0);
488 /* this function must be called with interrupt disabled */
489 static void clear_all_buffer(struct r8a66597 *r8a66597,
490 struct r8a66597_pipe *pipe)
494 if (!pipe || pipe->info.pipenum == 0)
497 pipe_stop(r8a66597, pipe);
498 r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
499 tmp = r8a66597_read(r8a66597, pipe->pipectr);
500 tmp = r8a66597_read(r8a66597, pipe->pipectr);
501 tmp = r8a66597_read(r8a66597, pipe->pipectr);
502 r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
505 /* this function must be called with interrupt disabled */
506 static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597,
507 struct r8a66597_pipe *pipe, int toggle)
510 r8a66597_bset(r8a66597, SQSET, pipe->pipectr);
512 r8a66597_bset(r8a66597, SQCLR, pipe->pipectr);
515 static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
517 if (r8a66597->pdata->on_chip)
523 /* this function must be called with interrupt disabled */
524 static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum)
526 unsigned short mbw = mbw_value(r8a66597);
528 r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL);
529 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
532 /* this function must be called with interrupt disabled */
533 static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597,
534 struct r8a66597_pipe *pipe)
536 unsigned short mbw = mbw_value(r8a66597);
538 cfifo_change(r8a66597, 0);
539 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL);
540 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL);
542 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE,
544 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum);
547 static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep)
549 struct r8a66597_pipe *pipe = hep->hcpriv;
551 if (usb_pipeendpoint(urb->pipe) == 0)
554 return pipe->info.pipenum;
557 static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb)
559 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
561 return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address;
564 static unsigned short *get_toggle_pointer(struct r8a66597_device *dev,
570 return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle;
573 /* this function must be called with interrupt disabled */
574 static void pipe_toggle_set(struct r8a66597 *r8a66597,
575 struct r8a66597_pipe *pipe,
576 struct urb *urb, int set)
578 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
579 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
580 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
586 *toggle |= 1 << endpoint;
588 *toggle &= ~(1 << endpoint);
591 /* this function must be called with interrupt disabled */
592 static void pipe_toggle_save(struct r8a66597 *r8a66597,
593 struct r8a66597_pipe *pipe,
596 if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON)
597 pipe_toggle_set(r8a66597, pipe, urb, 1);
599 pipe_toggle_set(r8a66597, pipe, urb, 0);
602 /* this function must be called with interrupt disabled */
603 static void pipe_toggle_restore(struct r8a66597 *r8a66597,
604 struct r8a66597_pipe *pipe,
607 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
608 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
609 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
614 r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint));
617 /* this function must be called with interrupt disabled */
618 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
619 struct r8a66597_pipe_info *info)
623 if (info->pipenum == 0)
626 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
627 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
628 r8a66597_write(r8a66597, info->pipenum, PIPESEL);
631 if (info->type == R8A66597_BULK && info->dir_in)
632 val |= R8A66597_DBLB | R8A66597_SHTNAK;
633 val |= info->type | info->epnum;
634 r8a66597_write(r8a66597, val, PIPECFG);
636 r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum),
638 r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket,
640 r8a66597_write(r8a66597, info->interval, PIPEPERI);
643 /* this function must be called with interrupt disabled */
644 static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td)
646 struct r8a66597_pipe_info *info;
647 struct urb *urb = td->urb;
649 if (td->pipenum > 0) {
650 info = &td->pipe->info;
651 cfifo_change(r8a66597, 0);
652 pipe_buffer_setting(r8a66597, info);
654 if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
655 usb_pipeout(urb->pipe)) &&
656 !usb_pipecontrol(urb->pipe)) {
657 r8a66597_pipe_toggle(r8a66597, td->pipe, 0);
658 pipe_toggle_set(r8a66597, td->pipe, urb, 0);
659 clear_all_buffer(r8a66597, td->pipe);
660 usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
661 usb_pipeout(urb->pipe), 1);
663 pipe_toggle_restore(r8a66597, td->pipe, urb);
667 /* this function must be called with interrupt disabled */
668 static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
669 struct usb_endpoint_descriptor *ep)
671 u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
673 memset(array, 0, sizeof(array));
674 switch (usb_endpoint_type(ep)) {
675 case USB_ENDPOINT_XFER_BULK:
676 if (usb_endpoint_dir_in(ep))
683 case USB_ENDPOINT_XFER_INT:
684 if (usb_endpoint_dir_in(ep)) {
691 case USB_ENDPOINT_XFER_ISOC:
692 if (usb_endpoint_dir_in(ep))
698 printk(KERN_ERR "r8a66597: Illegal type\n");
704 while (array[i] != 0) {
705 if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]])
713 static u16 get_r8a66597_type(__u8 type)
718 case USB_ENDPOINT_XFER_BULK:
719 r8a66597_type = R8A66597_BULK;
721 case USB_ENDPOINT_XFER_INT:
722 r8a66597_type = R8A66597_INT;
724 case USB_ENDPOINT_XFER_ISOC:
725 r8a66597_type = R8A66597_ISO;
728 printk(KERN_ERR "r8a66597: Illegal type\n");
729 r8a66597_type = 0x0000;
733 return r8a66597_type;
736 static u16 get_bufnum(u16 pipenum)
742 else if (check_bulk_or_isoc(pipenum))
743 bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2;
744 else if (check_interrupt(pipenum))
745 bufnum = 4 + (pipenum - 6);
747 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
752 static u16 get_buf_bsize(u16 pipenum)
758 else if (check_bulk_or_isoc(pipenum))
759 buf_bsize = R8A66597_BUF_BSIZE - 1;
760 else if (check_interrupt(pipenum))
763 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
768 /* this function must be called with interrupt disabled */
769 static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597,
770 struct r8a66597_device *dev,
771 struct r8a66597_pipe *pipe,
775 struct r8a66597_pipe_info *info = &pipe->info;
776 unsigned short mbw = mbw_value(r8a66597);
778 /* pipe dma is only for external controlles */
779 if (r8a66597->pdata->on_chip)
782 if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) {
783 for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) {
784 if ((r8a66597->dma_map & (1 << i)) != 0)
787 dev_info(&dev->udev->dev,
788 "address %d, EndpointAddress 0x%02x use "
789 "DMA FIFO\n", usb_pipedevice(urb->pipe),
791 USB_ENDPOINT_DIR_MASK + info->epnum
794 r8a66597->dma_map |= 1 << i;
795 dev->dma_map |= 1 << i;
796 set_pipe_reg_addr(pipe, i);
798 cfifo_change(r8a66597, 0);
799 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum,
800 mbw | CURPIPE, pipe->fifosel);
802 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE,
804 r8a66597_bset(r8a66597, BCLR, pipe->fifoctr);
810 /* this function must be called with interrupt disabled */
811 static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb,
812 struct usb_host_endpoint *hep,
813 struct r8a66597_pipe_info *info)
815 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
816 struct r8a66597_pipe *pipe = hep->hcpriv;
818 dev_dbg(&dev->udev->dev, "enable_pipe:\n");
821 set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA);
822 r8a66597->pipe_cnt[pipe->info.pipenum]++;
823 dev->pipe_cnt[pipe->info.pipenum]++;
825 enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb);
828 static void r8a66597_urb_done(struct r8a66597 *r8a66597, struct urb *urb,
830 __releases(r8a66597->lock)
831 __acquires(r8a66597->lock)
833 if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) {
836 for (ptr = urb->transfer_buffer;
837 ptr < urb->transfer_buffer + urb->transfer_buffer_length;
839 flush_dcache_page(virt_to_page(ptr));
842 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
843 spin_unlock(&r8a66597->lock);
844 usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, status);
845 spin_lock(&r8a66597->lock);
848 /* this function must be called with interrupt disabled */
849 static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
851 struct r8a66597_td *td, *next;
853 struct list_head *list = &r8a66597->pipe_queue[pipenum];
855 if (list_empty(list))
858 list_for_each_entry_safe(td, next, list, queue) {
859 if (td->address != address)
863 list_del(&td->queue);
867 r8a66597_urb_done(r8a66597, urb, -ENODEV);
873 /* this function must be called with interrupt disabled */
874 static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
875 struct r8a66597_device *dev)
883 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
884 if (!dev->pipe_cnt[pipenum])
889 force_dequeue(r8a66597, 0, dev->address);
892 r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
893 dev->pipe_cnt[pipenum] = 0;
894 force_dequeue(r8a66597, pipenum, dev->address);
897 dev_dbg(&dev->udev->dev, "disable_pipe\n");
899 r8a66597->dma_map &= ~(dev->dma_map);
903 static u16 get_interval(struct urb *urb, __u8 interval)
908 if (urb->dev->speed == USB_SPEED_HIGH) {
912 time = interval ? interval - 1 : 0;
914 if (interval > 128) {
917 /* calculate the nearest value for PIPEPERI */
918 for (i = 0; i < 7; i++) {
919 if ((1 << i) < interval &&
920 (1 << (i + 1) > interval))
929 static unsigned long get_timer_interval(struct urb *urb, __u8 interval)
932 unsigned long time = 1;
934 if (usb_pipeisoc(urb->pipe))
937 if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) {
938 for (i = 0; i < (interval - 1); i++)
940 time = time * 125 / 1000; /* uSOF -> msec */
948 /* this function must be called with interrupt disabled */
949 static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
950 struct usb_host_endpoint *hep,
951 struct usb_endpoint_descriptor *ep)
953 struct r8a66597_pipe_info info;
955 info.pipenum = get_empty_pipenum(r8a66597, ep);
956 info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
957 info.epnum = usb_endpoint_num(ep);
958 info.maxpacket = usb_endpoint_maxp(ep);
959 info.type = get_r8a66597_type(usb_endpoint_type(ep));
960 info.bufnum = get_bufnum(info.pipenum);
961 info.buf_bsize = get_buf_bsize(info.pipenum);
962 if (info.type == R8A66597_BULK) {
964 info.timer_interval = 0;
966 info.interval = get_interval(urb, ep->bInterval);
967 info.timer_interval = get_timer_interval(urb, ep->bInterval);
969 if (usb_endpoint_dir_in(ep))
974 enable_r8a66597_pipe(r8a66597, urb, hep, &info);
977 static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
979 struct r8a66597_device *dev;
981 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
982 dev->state = USB_STATE_CONFIGURED;
985 static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
988 if (pipenum == 0 && usb_pipeout(urb->pipe))
989 enable_irq_empty(r8a66597, pipenum);
991 enable_irq_ready(r8a66597, pipenum);
993 if (!usb_pipeisoc(urb->pipe))
994 enable_irq_nrdy(r8a66597, pipenum);
997 static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
999 disable_irq_ready(r8a66597, pipenum);
1000 disable_irq_nrdy(r8a66597, pipenum);
1003 static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597)
1005 mod_timer(&r8a66597->rh_timer,
1006 jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME));
1009 static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port,
1012 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1014 rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1015 rh->scount = R8A66597_MAX_SAMPLING;
1017 rh->port |= USB_PORT_STAT_CONNECTION;
1019 rh->port &= ~USB_PORT_STAT_CONNECTION;
1020 rh->port |= USB_PORT_STAT_C_CONNECTION << 16;
1022 r8a66597_root_hub_start_polling(r8a66597);
1025 /* this function must be called with interrupt disabled */
1026 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port,
1028 __releases(r8a66597->lock)
1029 __acquires(r8a66597->lock)
1031 if (syssts == SE0) {
1032 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1033 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1035 if (syssts == FS_JSTS)
1036 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
1037 else if (syssts == LS_JSTS)
1038 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
1040 r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port));
1041 r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
1043 if (r8a66597->bus_suspended)
1044 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1047 spin_unlock(&r8a66597->lock);
1048 usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597));
1049 spin_lock(&r8a66597->lock);
1052 /* this function must be called with interrupt disabled */
1053 static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
1055 u16 speed = get_rh_usb_speed(r8a66597, port);
1056 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1058 rh->port &= ~(USB_PORT_STAT_HIGH_SPEED | USB_PORT_STAT_LOW_SPEED);
1059 if (speed == HSMODE)
1060 rh->port |= USB_PORT_STAT_HIGH_SPEED;
1061 else if (speed == LSMODE)
1062 rh->port |= USB_PORT_STAT_LOW_SPEED;
1064 rh->port &= ~USB_PORT_STAT_RESET;
1065 rh->port |= USB_PORT_STAT_ENABLE;
1068 /* this function must be called with interrupt disabled */
1069 static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
1071 struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
1073 disable_r8a66597_pipe_all(r8a66597, dev);
1074 free_usb_address(r8a66597, dev, 0);
1076 start_root_hub_sampling(r8a66597, port, 0);
1079 /* this function must be called with interrupt disabled */
1080 static void prepare_setup_packet(struct r8a66597 *r8a66597,
1081 struct r8a66597_td *td)
1084 __le16 *p = (__le16 *)td->urb->setup_packet;
1085 unsigned long setup_addr = USBREQ;
1087 r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
1089 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
1091 for (i = 0; i < 4; i++) {
1092 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
1095 r8a66597_write(r8a66597, SUREQ, DCPCTR);
1098 /* this function must be called with interrupt disabled */
1099 static void prepare_packet_read(struct r8a66597 *r8a66597,
1100 struct r8a66597_td *td)
1102 struct urb *urb = td->urb;
1104 if (usb_pipecontrol(urb->pipe)) {
1105 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1106 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1107 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1108 if (urb->actual_length == 0) {
1109 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1110 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1112 pipe_irq_disable(r8a66597, td->pipenum);
1113 pipe_start(r8a66597, td->pipe);
1114 pipe_irq_enable(r8a66597, urb, td->pipenum);
1116 if (urb->actual_length == 0) {
1117 pipe_irq_disable(r8a66597, td->pipenum);
1118 pipe_setting(r8a66597, td);
1119 pipe_stop(r8a66597, td->pipe);
1120 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1122 if (td->pipe->pipetre) {
1123 r8a66597_write(r8a66597, TRCLR,
1125 r8a66597_write(r8a66597,
1127 (urb->transfer_buffer_length,
1130 r8a66597_bset(r8a66597, TRENB,
1134 pipe_start(r8a66597, td->pipe);
1135 pipe_irq_enable(r8a66597, urb, td->pipenum);
1140 /* this function must be called with interrupt disabled */
1141 static void prepare_packet_write(struct r8a66597 *r8a66597,
1142 struct r8a66597_td *td)
1145 struct urb *urb = td->urb;
1147 if (usb_pipecontrol(urb->pipe)) {
1148 pipe_stop(r8a66597, td->pipe);
1149 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1150 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1151 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1152 if (urb->actual_length == 0) {
1153 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1154 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1157 if (urb->actual_length == 0)
1158 pipe_setting(r8a66597, td);
1159 if (td->pipe->pipetre)
1160 r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
1162 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1164 fifo_change_from_pipe(r8a66597, td->pipe);
1165 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1166 if (unlikely((tmp & FRDY) == 0))
1167 pipe_irq_enable(r8a66597, urb, td->pipenum);
1169 packet_write(r8a66597, td->pipenum);
1170 pipe_start(r8a66597, td->pipe);
1173 /* this function must be called with interrupt disabled */
1174 static void prepare_status_packet(struct r8a66597 *r8a66597,
1175 struct r8a66597_td *td)
1177 struct urb *urb = td->urb;
1179 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1180 pipe_stop(r8a66597, td->pipe);
1182 if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
1183 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1184 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1185 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1186 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
1187 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
1188 enable_irq_empty(r8a66597, 0);
1190 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1191 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1192 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1193 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1194 enable_irq_ready(r8a66597, 0);
1196 enable_irq_nrdy(r8a66597, 0);
1197 pipe_start(r8a66597, td->pipe);
1200 static int is_set_address(unsigned char *setup_packet)
1202 if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) &&
1203 setup_packet[1] == USB_REQ_SET_ADDRESS)
1209 /* this function must be called with interrupt disabled */
1210 static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1216 if (is_set_address(td->urb->setup_packet)) {
1217 td->set_address = 1;
1218 td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
1220 if (td->urb->setup_packet[2] == 0)
1223 prepare_setup_packet(r8a66597, td);
1226 prepare_packet_read(r8a66597, td);
1229 prepare_packet_write(r8a66597, td);
1232 prepare_status_packet(r8a66597, td);
1235 printk(KERN_ERR "r8a66597: invalid type.\n");
1242 static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
1244 if (usb_pipeisoc(urb->pipe)) {
1245 if (urb->number_of_packets == td->iso_cnt)
1249 /* control or bulk or interrupt */
1250 if ((urb->transfer_buffer_length <= urb->actual_length) ||
1251 (td->short_packet) || (td->zero_packet))
1257 /* this function must be called with interrupt disabled */
1258 static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1264 if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
1265 !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
1266 r8a66597->timeout_map |= 1 << td->pipenum;
1267 switch (usb_pipetype(td->urb->pipe)) {
1268 case PIPE_INTERRUPT:
1269 case PIPE_ISOCHRONOUS:
1277 mod_timer(&r8a66597->td_timer[td->pipenum],
1278 jiffies + msecs_to_jiffies(time));
1282 /* this function must be called with interrupt disabled */
1283 static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
1284 u16 pipenum, struct urb *urb, int status)
1285 __releases(r8a66597->lock) __acquires(r8a66597->lock)
1288 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
1290 r8a66597->timeout_map &= ~(1 << pipenum);
1293 if (td->set_address && (status != 0 || urb->unlinked))
1294 r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
1296 pipe_toggle_save(r8a66597, td->pipe, urb);
1297 list_del(&td->queue);
1301 if (!list_empty(&r8a66597->pipe_queue[pipenum]))
1305 if (usb_pipeisoc(urb->pipe))
1306 urb->start_frame = r8a66597_get_frame(hcd);
1308 r8a66597_urb_done(r8a66597, urb, status);
1312 td = r8a66597_get_td(r8a66597, pipenum);
1316 start_transfer(r8a66597, td);
1317 set_td_timer(r8a66597, td);
1321 static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
1324 int rcv_len, bufsize, urb_len, size;
1326 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1335 fifo_change_from_pipe(r8a66597, td->pipe);
1336 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1337 if (unlikely((tmp & FRDY) == 0)) {
1338 pipe_stop(r8a66597, td->pipe);
1339 pipe_irq_disable(r8a66597, pipenum);
1340 printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum);
1341 finish_request(r8a66597, td, pipenum, td->urb, -EPIPE);
1345 /* prepare parameters */
1346 rcv_len = tmp & DTLN;
1347 if (usb_pipeisoc(urb->pipe)) {
1348 buf = (u16 *)(urb->transfer_buffer +
1349 urb->iso_frame_desc[td->iso_cnt].offset);
1350 urb_len = urb->iso_frame_desc[td->iso_cnt].length;
1352 buf = (void *)urb->transfer_buffer + urb->actual_length;
1353 urb_len = urb->transfer_buffer_length - urb->actual_length;
1355 bufsize = min(urb_len, (int) td->maxpacket);
1356 if (rcv_len <= bufsize) {
1360 status = -EOVERFLOW;
1364 /* update parameters */
1365 urb->actual_length += size;
1367 td->zero_packet = 1;
1368 if (rcv_len < bufsize) {
1369 td->short_packet = 1;
1371 if (usb_pipeisoc(urb->pipe)) {
1372 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1373 urb->iso_frame_desc[td->iso_cnt].status = status;
1378 /* check transfer finish */
1379 if (finish || check_transfer_finish(td, urb)) {
1380 pipe_stop(r8a66597, td->pipe);
1381 pipe_irq_disable(r8a66597, pipenum);
1386 if (urb->transfer_buffer) {
1388 r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
1390 r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
1394 if (finish && pipenum != 0)
1395 finish_request(r8a66597, td, pipenum, urb, status);
1398 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
1403 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1410 fifo_change_from_pipe(r8a66597, td->pipe);
1411 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1412 if (unlikely((tmp & FRDY) == 0)) {
1413 pipe_stop(r8a66597, td->pipe);
1414 pipe_irq_disable(r8a66597, pipenum);
1415 printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum);
1416 finish_request(r8a66597, td, pipenum, urb, -EPIPE);
1420 /* prepare parameters */
1421 bufsize = td->maxpacket;
1422 if (usb_pipeisoc(urb->pipe)) {
1423 buf = (u16 *)(urb->transfer_buffer +
1424 urb->iso_frame_desc[td->iso_cnt].offset);
1426 (int)urb->iso_frame_desc[td->iso_cnt].length);
1428 buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
1429 size = min_t(u32, bufsize,
1430 urb->transfer_buffer_length - urb->actual_length);
1435 r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
1436 if (urb->transfer_buffer) {
1437 r8a66597_write_fifo(r8a66597, td->pipe, buf, size);
1438 if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
1439 r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
1442 /* update parameters */
1443 urb->actual_length += size;
1444 if (usb_pipeisoc(urb->pipe)) {
1445 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1446 urb->iso_frame_desc[td->iso_cnt].status = 0;
1450 /* check transfer finish */
1451 if (check_transfer_finish(td, urb)) {
1452 disable_irq_ready(r8a66597, pipenum);
1453 enable_irq_empty(r8a66597, pipenum);
1454 if (!usb_pipeisoc(urb->pipe))
1455 enable_irq_nrdy(r8a66597, pipenum);
1457 pipe_irq_enable(r8a66597, urb, pipenum);
1461 static void check_next_phase(struct r8a66597 *r8a66597, int status)
1463 struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
1474 if (check_transfer_finish(td, urb))
1475 td->type = USB_PID_ACK;
1478 if (urb->transfer_buffer_length == urb->actual_length)
1479 td->type = USB_PID_ACK;
1480 else if (usb_pipeout(urb->pipe))
1481 td->type = USB_PID_OUT;
1483 td->type = USB_PID_IN;
1490 if (finish || status != 0 || urb->unlinked)
1491 finish_request(r8a66597, td, 0, urb, status);
1493 start_transfer(r8a66597, td);
1496 static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
1498 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1501 u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
1511 static void irq_pipe_ready(struct r8a66597 *r8a66597)
1516 struct r8a66597_td *td;
1518 mask = r8a66597_read(r8a66597, BRDYSTS)
1519 & r8a66597_read(r8a66597, BRDYENB);
1520 r8a66597_write(r8a66597, ~mask, BRDYSTS);
1522 td = r8a66597_get_td(r8a66597, 0);
1523 if (td && td->type == USB_PID_IN)
1524 packet_read(r8a66597, 0);
1526 pipe_irq_disable(r8a66597, 0);
1527 check_next_phase(r8a66597, 0);
1530 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1531 check = 1 << pipenum;
1533 td = r8a66597_get_td(r8a66597, pipenum);
1537 if (td->type == USB_PID_IN)
1538 packet_read(r8a66597, pipenum);
1539 else if (td->type == USB_PID_OUT)
1540 packet_write(r8a66597, pipenum);
1545 static void irq_pipe_empty(struct r8a66597 *r8a66597)
1551 struct r8a66597_td *td;
1553 mask = r8a66597_read(r8a66597, BEMPSTS)
1554 & r8a66597_read(r8a66597, BEMPENB);
1555 r8a66597_write(r8a66597, ~mask, BEMPSTS);
1557 cfifo_change(r8a66597, 0);
1558 td = r8a66597_get_td(r8a66597, 0);
1559 if (td && td->type != USB_PID_OUT)
1560 disable_irq_empty(r8a66597, 0);
1561 check_next_phase(r8a66597, 0);
1564 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1565 check = 1 << pipenum;
1567 struct r8a66597_td *td;
1568 td = r8a66597_get_td(r8a66597, pipenum);
1572 tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
1573 if ((tmp & INBUFM) == 0) {
1574 disable_irq_empty(r8a66597, pipenum);
1575 pipe_irq_disable(r8a66597, pipenum);
1576 finish_request(r8a66597, td, pipenum, td->urb,
1583 static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
1590 mask = r8a66597_read(r8a66597, NRDYSTS)
1591 & r8a66597_read(r8a66597, NRDYENB);
1592 r8a66597_write(r8a66597, ~mask, NRDYSTS);
1594 cfifo_change(r8a66597, 0);
1595 status = get_urb_error(r8a66597, 0);
1596 pipe_irq_disable(r8a66597, 0);
1597 check_next_phase(r8a66597, status);
1600 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1601 check = 1 << pipenum;
1603 struct r8a66597_td *td;
1604 td = r8a66597_get_td(r8a66597, pipenum);
1608 status = get_urb_error(r8a66597, pipenum);
1609 pipe_irq_disable(r8a66597, pipenum);
1610 pipe_stop(r8a66597, td->pipe);
1611 finish_request(r8a66597, td, pipenum, td->urb, status);
1616 static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
1618 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1619 u16 intsts0, intsts1, intsts2;
1620 u16 intenb0, intenb1, intenb2;
1621 u16 mask0, mask1, mask2;
1624 spin_lock(&r8a66597->lock);
1626 intsts0 = r8a66597_read(r8a66597, INTSTS0);
1627 intsts1 = r8a66597_read(r8a66597, INTSTS1);
1628 intsts2 = r8a66597_read(r8a66597, INTSTS2);
1629 intenb0 = r8a66597_read(r8a66597, INTENB0);
1630 intenb1 = r8a66597_read(r8a66597, INTENB1);
1631 intenb2 = r8a66597_read(r8a66597, INTENB2);
1633 mask2 = intsts2 & intenb2;
1634 mask1 = intsts1 & intenb1;
1635 mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
1637 if (mask2 & ATTCH) {
1638 r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
1639 r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
1641 /* start usb bus sampling */
1642 start_root_hub_sampling(r8a66597, 1, 1);
1645 r8a66597_write(r8a66597, ~DTCH, INTSTS2);
1646 r8a66597_bclr(r8a66597, DTCHE, INTENB2);
1647 r8a66597_usb_disconnect(r8a66597, 1);
1650 r8a66597_write(r8a66597, ~BCHG, INTSTS2);
1651 r8a66597_bclr(r8a66597, BCHGE, INTENB2);
1652 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1657 if (mask1 & ATTCH) {
1658 r8a66597_write(r8a66597, ~ATTCH, INTSTS1);
1659 r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
1661 /* start usb bus sampling */
1662 start_root_hub_sampling(r8a66597, 0, 1);
1665 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
1666 r8a66597_bclr(r8a66597, DTCHE, INTENB1);
1667 r8a66597_usb_disconnect(r8a66597, 0);
1670 r8a66597_write(r8a66597, ~BCHG, INTSTS1);
1671 r8a66597_bclr(r8a66597, BCHGE, INTENB1);
1672 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1676 r8a66597_write(r8a66597, ~SIGN, INTSTS1);
1677 status = get_urb_error(r8a66597, 0);
1678 check_next_phase(r8a66597, status);
1681 r8a66597_write(r8a66597, ~SACK, INTSTS1);
1682 check_next_phase(r8a66597, 0);
1687 irq_pipe_ready(r8a66597);
1689 irq_pipe_empty(r8a66597);
1691 irq_pipe_nrdy(r8a66597);
1694 spin_unlock(&r8a66597->lock);
1698 /* this function must be called with interrupt disabled */
1699 static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
1702 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1704 if (rh->port & USB_PORT_STAT_RESET) {
1705 unsigned long dvstctr_reg = get_dvstctr_reg(port);
1707 tmp = r8a66597_read(r8a66597, dvstctr_reg);
1708 if ((tmp & USBRST) == USBRST) {
1709 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
1711 r8a66597_root_hub_start_polling(r8a66597);
1713 r8a66597_usb_connect(r8a66597, port);
1716 if (!(rh->port & USB_PORT_STAT_CONNECTION)) {
1717 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1718 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1721 if (rh->scount > 0) {
1722 tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1723 if (tmp == rh->old_syssts) {
1725 if (rh->scount == 0)
1726 r8a66597_check_syssts(r8a66597, port, tmp);
1728 r8a66597_root_hub_start_polling(r8a66597);
1730 rh->scount = R8A66597_MAX_SAMPLING;
1731 rh->old_syssts = tmp;
1732 r8a66597_root_hub_start_polling(r8a66597);
1737 static void r8a66597_interval_timer(unsigned long _r8a66597)
1739 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1740 unsigned long flags;
1742 struct r8a66597_td *td;
1744 spin_lock_irqsave(&r8a66597->lock, flags);
1746 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1747 if (!(r8a66597->interval_map & (1 << pipenum)))
1749 if (timer_pending(&r8a66597->interval_timer[pipenum]))
1752 td = r8a66597_get_td(r8a66597, pipenum);
1754 start_transfer(r8a66597, td);
1757 spin_unlock_irqrestore(&r8a66597->lock, flags);
1760 static void r8a66597_td_timer(unsigned long _r8a66597)
1762 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1763 unsigned long flags;
1765 struct r8a66597_td *td, *new_td = NULL;
1766 struct r8a66597_pipe *pipe;
1768 spin_lock_irqsave(&r8a66597->lock, flags);
1769 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1770 if (!(r8a66597->timeout_map & (1 << pipenum)))
1772 if (timer_pending(&r8a66597->td_timer[pipenum]))
1775 td = r8a66597_get_td(r8a66597, pipenum);
1777 r8a66597->timeout_map &= ~(1 << pipenum);
1781 if (td->urb->actual_length) {
1782 set_td_timer(r8a66597, td);
1787 pipe_stop(r8a66597, pipe);
1791 list_move_tail(&new_td->queue,
1792 &r8a66597->pipe_queue[pipenum]);
1793 new_td = r8a66597_get_td(r8a66597, pipenum);
1798 } while (td != new_td && td->address == new_td->address);
1800 start_transfer(r8a66597, new_td);
1803 r8a66597->timeout_map &= ~(1 << pipenum);
1805 set_td_timer(r8a66597, new_td);
1808 spin_unlock_irqrestore(&r8a66597->lock, flags);
1811 static void r8a66597_timer(unsigned long _r8a66597)
1813 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1814 unsigned long flags;
1817 spin_lock_irqsave(&r8a66597->lock, flags);
1819 for (port = 0; port < r8a66597->max_root_hub; port++)
1820 r8a66597_root_hub_control(r8a66597, port);
1822 spin_unlock_irqrestore(&r8a66597->lock, flags);
1825 static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
1827 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
1829 if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
1830 (urb->dev->state == USB_STATE_CONFIGURED))
1836 static int r8a66597_start(struct usb_hcd *hcd)
1838 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1840 hcd->state = HC_STATE_RUNNING;
1841 return enable_controller(r8a66597);
1844 static void r8a66597_stop(struct usb_hcd *hcd)
1846 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1848 disable_controller(r8a66597);
1851 static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
1853 unsigned int usb_address = usb_pipedevice(urb->pipe);
1854 u16 root_port, hub_port;
1856 if (usb_address == 0) {
1857 get_port_number(r8a66597, urb->dev->devpath,
1858 &root_port, &hub_port);
1859 set_devadd_reg(r8a66597, 0,
1860 get_r8a66597_usb_speed(urb->dev->speed),
1861 get_parent_r8a66597_address(r8a66597, urb->dev),
1862 hub_port, root_port);
1866 static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
1868 struct usb_host_endpoint *hep)
1870 struct r8a66597_td *td;
1873 td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC);
1877 pipenum = r8a66597_get_pipenum(urb, hep);
1878 td->pipenum = pipenum;
1879 td->pipe = hep->hcpriv;
1881 td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
1882 td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
1883 !usb_pipein(urb->pipe));
1884 if (usb_pipecontrol(urb->pipe))
1885 td->type = USB_PID_SETUP;
1886 else if (usb_pipein(urb->pipe))
1887 td->type = USB_PID_IN;
1889 td->type = USB_PID_OUT;
1890 INIT_LIST_HEAD(&td->queue);
1895 static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
1899 struct usb_host_endpoint *hep = urb->ep;
1900 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1901 struct r8a66597_td *td = NULL;
1902 int ret, request = 0;
1903 unsigned long flags;
1905 spin_lock_irqsave(&r8a66597->lock, flags);
1906 if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
1908 goto error_not_linked;
1911 ret = usb_hcd_link_urb_to_ep(hcd, urb);
1913 goto error_not_linked;
1916 hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe),
1922 set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
1923 if (usb_pipeendpoint(urb->pipe))
1924 init_pipe_info(r8a66597, urb, hep, &hep->desc);
1927 if (unlikely(check_pipe_config(r8a66597, urb)))
1928 init_pipe_config(r8a66597, urb);
1930 set_address_zero(r8a66597, urb);
1931 td = r8a66597_make_td(r8a66597, urb, hep);
1936 if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
1938 list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
1942 if (td->pipe->info.timer_interval) {
1943 r8a66597->interval_map |= 1 << td->pipenum;
1944 mod_timer(&r8a66597->interval_timer[td->pipenum],
1945 jiffies + msecs_to_jiffies(
1946 td->pipe->info.timer_interval));
1948 ret = start_transfer(r8a66597, td);
1950 list_del(&td->queue);
1955 set_td_timer(r8a66597, td);
1959 usb_hcd_unlink_urb_from_ep(hcd, urb);
1961 spin_unlock_irqrestore(&r8a66597->lock, flags);
1965 static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1968 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1969 struct r8a66597_td *td;
1970 unsigned long flags;
1973 spin_lock_irqsave(&r8a66597->lock, flags);
1974 rc = usb_hcd_check_unlink_urb(hcd, urb, status);
1980 pipe_stop(r8a66597, td->pipe);
1981 pipe_irq_disable(r8a66597, td->pipenum);
1982 disable_irq_empty(r8a66597, td->pipenum);
1983 finish_request(r8a66597, td, td->pipenum, urb, status);
1986 spin_unlock_irqrestore(&r8a66597->lock, flags);
1990 static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
1991 struct usb_host_endpoint *hep)
1993 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1994 struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
1995 struct r8a66597_td *td;
1996 struct urb *urb = NULL;
1998 unsigned long flags;
2002 pipenum = pipe->info.pipenum;
2010 spin_lock_irqsave(&r8a66597->lock, flags);
2011 pipe_stop(r8a66597, pipe);
2012 pipe_irq_disable(r8a66597, pipenum);
2013 disable_irq_empty(r8a66597, pipenum);
2014 td = r8a66597_get_td(r8a66597, pipenum);
2017 finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN);
2020 spin_unlock_irqrestore(&r8a66597->lock, flags);
2023 static int r8a66597_get_frame(struct usb_hcd *hcd)
2025 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2026 return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
2029 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
2032 struct usb_device *childdev;
2034 if (udev->state == USB_STATE_CONFIGURED &&
2035 udev->parent && udev->parent->devnum > 1 &&
2036 udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
2037 map[udev->devnum/32] |= (1 << (udev->devnum % 32));
2039 usb_hub_for_each_child(udev, chix, childdev) {
2041 collect_usb_address_map(childdev, map);
2045 /* this function must be called with interrupt disabled */
2046 static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
2049 struct r8a66597_device *dev;
2050 struct list_head *list = &r8a66597->child_device;
2052 list_for_each_entry(dev, list, device_list) {
2053 if (dev->usb_address != addr)
2059 printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr);
2063 static void update_usb_address_map(struct r8a66597 *r8a66597,
2064 struct usb_device *root_hub,
2069 unsigned long flags;
2071 for (i = 0; i < 4; i++) {
2072 diff = r8a66597->child_connect_map[i] ^ map[i];
2076 for (j = 0; j < 32; j++) {
2077 if (!(diff & (1 << j)))
2081 if (map[i] & (1 << j))
2082 set_child_connect_map(r8a66597, addr);
2084 struct r8a66597_device *dev;
2086 spin_lock_irqsave(&r8a66597->lock, flags);
2087 dev = get_r8a66597_device(r8a66597, addr);
2088 disable_r8a66597_pipe_all(r8a66597, dev);
2089 free_usb_address(r8a66597, dev, 0);
2090 put_child_connect_map(r8a66597, addr);
2091 spin_unlock_irqrestore(&r8a66597->lock, flags);
2097 static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
2098 struct usb_hcd *hcd)
2100 struct usb_bus *bus;
2101 unsigned long now_map[4];
2103 memset(now_map, 0, sizeof(now_map));
2105 list_for_each_entry(bus, &usb_bus_list, bus_list) {
2109 if (bus->busnum != hcd->self.busnum)
2112 collect_usb_address_map(bus->root_hub, now_map);
2113 update_usb_address_map(r8a66597, bus->root_hub, now_map);
2117 static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
2119 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2120 unsigned long flags;
2123 r8a66597_check_detect_child(r8a66597, hcd);
2125 spin_lock_irqsave(&r8a66597->lock, flags);
2127 *buf = 0; /* initialize (no change) */
2129 for (i = 0; i < r8a66597->max_root_hub; i++) {
2130 if (r8a66597->root_hub[i].port & 0xffff0000)
2131 *buf |= 1 << (i + 1);
2134 spin_unlock_irqrestore(&r8a66597->lock, flags);
2139 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
2140 struct usb_hub_descriptor *desc)
2142 desc->bDescriptorType = 0x29;
2143 desc->bHubContrCurrent = 0;
2144 desc->bNbrPorts = r8a66597->max_root_hub;
2145 desc->bDescLength = 9;
2146 desc->bPwrOn2PwrGood = 0;
2147 desc->wHubCharacteristics = cpu_to_le16(0x0011);
2148 desc->u.hs.DeviceRemovable[0] =
2149 ((1 << r8a66597->max_root_hub) - 1) << 1;
2150 desc->u.hs.DeviceRemovable[1] = ~0;
2153 static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2154 u16 wIndex, char *buf, u16 wLength)
2156 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2158 int port = (wIndex & 0x00FF) - 1;
2159 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2160 unsigned long flags;
2164 spin_lock_irqsave(&r8a66597->lock, flags);
2166 case ClearHubFeature:
2169 case C_HUB_OVER_CURRENT:
2170 case C_HUB_LOCAL_POWER:
2176 case ClearPortFeature:
2177 if (wIndex > r8a66597->max_root_hub)
2183 case USB_PORT_FEAT_ENABLE:
2184 rh->port &= ~USB_PORT_STAT_POWER;
2186 case USB_PORT_FEAT_SUSPEND:
2188 case USB_PORT_FEAT_POWER:
2189 r8a66597_port_power(r8a66597, port, 0);
2191 case USB_PORT_FEAT_C_ENABLE:
2192 case USB_PORT_FEAT_C_SUSPEND:
2193 case USB_PORT_FEAT_C_CONNECTION:
2194 case USB_PORT_FEAT_C_OVER_CURRENT:
2195 case USB_PORT_FEAT_C_RESET:
2200 rh->port &= ~(1 << wValue);
2202 case GetHubDescriptor:
2203 r8a66597_hub_descriptor(r8a66597,
2204 (struct usb_hub_descriptor *)buf);
2210 if (wIndex > r8a66597->max_root_hub)
2212 *(__le32 *)buf = cpu_to_le32(rh->port);
2214 case SetPortFeature:
2215 if (wIndex > r8a66597->max_root_hub)
2221 case USB_PORT_FEAT_SUSPEND:
2223 case USB_PORT_FEAT_POWER:
2224 r8a66597_port_power(r8a66597, port, 1);
2225 rh->port |= USB_PORT_STAT_POWER;
2227 case USB_PORT_FEAT_RESET: {
2228 struct r8a66597_device *dev = rh->dev;
2230 rh->port |= USB_PORT_STAT_RESET;
2232 disable_r8a66597_pipe_all(r8a66597, dev);
2233 free_usb_address(r8a66597, dev, 1);
2235 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
2236 get_dvstctr_reg(port));
2237 mod_timer(&r8a66597->rh_timer,
2238 jiffies + msecs_to_jiffies(50));
2244 rh->port |= 1 << wValue;
2252 spin_unlock_irqrestore(&r8a66597->lock, flags);
2256 #if defined(CONFIG_PM)
2257 static int r8a66597_bus_suspend(struct usb_hcd *hcd)
2259 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2262 dev_dbg(&r8a66597->device0.udev->dev, "%s\n", __func__);
2264 for (port = 0; port < r8a66597->max_root_hub; port++) {
2265 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2266 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2268 if (!(rh->port & USB_PORT_STAT_ENABLE))
2271 dev_dbg(&rh->dev->udev->dev, "suspend port = %d\n", port);
2272 r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */
2273 rh->port |= USB_PORT_STAT_SUSPEND;
2275 if (rh->dev->udev->do_remote_wakeup) {
2276 msleep(3); /* waiting last SOF */
2277 r8a66597_bset(r8a66597, RWUPE, dvstctr_reg);
2278 r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port));
2279 r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port));
2283 r8a66597->bus_suspended = 1;
2288 static int r8a66597_bus_resume(struct usb_hcd *hcd)
2290 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2293 dev_dbg(&r8a66597->device0.udev->dev, "%s\n", __func__);
2295 for (port = 0; port < r8a66597->max_root_hub; port++) {
2296 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2297 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2299 if (!(rh->port & USB_PORT_STAT_SUSPEND))
2302 dev_dbg(&rh->dev->udev->dev, "resume port = %d\n", port);
2303 rh->port &= ~USB_PORT_STAT_SUSPEND;
2304 rh->port |= USB_PORT_STAT_C_SUSPEND << 16;
2305 r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
2307 r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
2314 #define r8a66597_bus_suspend NULL
2315 #define r8a66597_bus_resume NULL
2318 static struct hc_driver r8a66597_hc_driver = {
2319 .description = hcd_name,
2320 .hcd_priv_size = sizeof(struct r8a66597),
2321 .irq = r8a66597_irq,
2324 * generic hardware linkage
2328 .start = r8a66597_start,
2329 .stop = r8a66597_stop,
2332 * managing i/o requests and associated device resources
2334 .urb_enqueue = r8a66597_urb_enqueue,
2335 .urb_dequeue = r8a66597_urb_dequeue,
2336 .endpoint_disable = r8a66597_endpoint_disable,
2339 * periodic schedule support
2341 .get_frame_number = r8a66597_get_frame,
2346 .hub_status_data = r8a66597_hub_status_data,
2347 .hub_control = r8a66597_hub_control,
2348 .bus_suspend = r8a66597_bus_suspend,
2349 .bus_resume = r8a66597_bus_resume,
2352 #if defined(CONFIG_PM)
2353 static int r8a66597_suspend(struct device *dev)
2355 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2358 dev_dbg(dev, "%s\n", __func__);
2360 disable_controller(r8a66597);
2362 for (port = 0; port < r8a66597->max_root_hub; port++) {
2363 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2365 rh->port = 0x00000000;
2371 static int r8a66597_resume(struct device *dev)
2373 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2374 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2376 dev_dbg(dev, "%s\n", __func__);
2378 enable_controller(r8a66597);
2379 usb_root_hub_lost_power(hcd->self.root_hub);
2384 static const struct dev_pm_ops r8a66597_dev_pm_ops = {
2385 .suspend = r8a66597_suspend,
2386 .resume = r8a66597_resume,
2387 .poweroff = r8a66597_suspend,
2388 .restore = r8a66597_resume,
2391 #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops)
2392 #else /* if defined(CONFIG_PM) */
2393 #define R8A66597_DEV_PM_OPS NULL
2396 static int __devexit r8a66597_remove(struct platform_device *pdev)
2398 struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
2399 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2401 del_timer_sync(&r8a66597->rh_timer);
2402 usb_remove_hcd(hcd);
2403 iounmap(r8a66597->reg);
2404 if (r8a66597->pdata->on_chip)
2405 clk_put(r8a66597->clk);
2410 static int __devinit r8a66597_probe(struct platform_device *pdev)
2413 struct resource *res = NULL, *ires;
2415 void __iomem *reg = NULL;
2416 struct usb_hcd *hcd = NULL;
2417 struct r8a66597 *r8a66597;
2420 unsigned long irq_trigger;
2425 if (pdev->dev.dma_mask) {
2427 dev_err(&pdev->dev, "dma not supported\n");
2431 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2434 dev_err(&pdev->dev, "platform_get_resource error.\n");
2438 ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2442 "platform_get_resource IORESOURCE_IRQ error.\n");
2447 irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
2449 reg = ioremap(res->start, resource_size(res));
2452 dev_err(&pdev->dev, "ioremap error.\n");
2456 if (pdev->dev.platform_data == NULL) {
2457 dev_err(&pdev->dev, "no platform data\n");
2462 /* initialize hcd */
2463 hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
2466 dev_err(&pdev->dev, "Failed to create hcd\n");
2469 r8a66597 = hcd_to_r8a66597(hcd);
2470 memset(r8a66597, 0, sizeof(struct r8a66597));
2471 dev_set_drvdata(&pdev->dev, r8a66597);
2472 r8a66597->pdata = pdev->dev.platform_data;
2473 r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
2475 if (r8a66597->pdata->on_chip) {
2476 snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
2477 r8a66597->clk = clk_get(&pdev->dev, clk_name);
2478 if (IS_ERR(r8a66597->clk)) {
2479 dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
2481 ret = PTR_ERR(r8a66597->clk);
2484 r8a66597->max_root_hub = 1;
2486 r8a66597->max_root_hub = 2;
2488 spin_lock_init(&r8a66597->lock);
2489 init_timer(&r8a66597->rh_timer);
2490 r8a66597->rh_timer.function = r8a66597_timer;
2491 r8a66597->rh_timer.data = (unsigned long)r8a66597;
2492 r8a66597->reg = reg;
2494 /* make sure no interrupts are pending */
2495 ret = r8a66597_clock_enable(r8a66597);
2498 disable_controller(r8a66597);
2500 for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
2501 INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
2502 init_timer(&r8a66597->td_timer[i]);
2503 r8a66597->td_timer[i].function = r8a66597_td_timer;
2504 r8a66597->td_timer[i].data = (unsigned long)r8a66597;
2505 setup_timer(&r8a66597->interval_timer[i],
2506 r8a66597_interval_timer,
2507 (unsigned long)r8a66597);
2509 INIT_LIST_HEAD(&r8a66597->child_device);
2511 hcd->rsrc_start = res->start;
2514 ret = usb_add_hcd(hcd, irq, irq_trigger);
2516 dev_err(&pdev->dev, "Failed to add hcd\n");
2523 if (r8a66597->pdata->on_chip)
2524 clk_put(r8a66597->clk);
2535 static struct platform_driver r8a66597_driver = {
2536 .probe = r8a66597_probe,
2537 .remove = __devexit_p(r8a66597_remove),
2539 .name = (char *) hcd_name,
2540 .owner = THIS_MODULE,
2541 .pm = R8A66597_DEV_PM_OPS,
2545 module_platform_driver(r8a66597_driver);