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 <shimoda.yoshihiro@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/platform_device.h>
39 #include <linux/irq.h>
40 #include <asm/cacheflush.h>
42 #include "../core/hcd.h"
45 MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
46 MODULE_LICENSE("GPL");
47 MODULE_AUTHOR("Yoshihiro Shimoda");
48 MODULE_ALIAS("platform:r8a66597_hcd");
50 #define DRIVER_VERSION "2009-05-26"
52 static const char hcd_name[] = "r8a66597_hcd";
54 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
55 static int r8a66597_get_frame(struct usb_hcd *hcd);
57 /* this function must be called with interrupt disabled */
58 static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
63 tmp = r8a66597_read(r8a66597, INTENB0);
64 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
65 r8a66597_bset(r8a66597, 1 << pipenum, reg);
66 r8a66597_write(r8a66597, tmp, INTENB0);
69 /* this function must be called with interrupt disabled */
70 static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
75 tmp = r8a66597_read(r8a66597, INTENB0);
76 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
77 r8a66597_bclr(r8a66597, 1 << pipenum, reg);
78 r8a66597_write(r8a66597, tmp, INTENB0);
81 static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
82 u16 usbspd, u8 upphub, u8 hubport, int port)
85 unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
87 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
88 r8a66597_write(r8a66597, val, devadd_reg);
91 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
96 if (r8a66597->pdata->on_chip) {
97 #ifdef CONFIG_HAVE_CLK
98 clk_enable(r8a66597->clk);
101 r8a66597_write(r8a66597, SCKE, SYSCFG0);
102 tmp = r8a66597_read(r8a66597, SYSCFG0);
104 printk(KERN_ERR "r8a66597: reg access fail.\n");
107 } while ((tmp & SCKE) != SCKE);
108 r8a66597_write(r8a66597, 0x04, 0x02);
111 r8a66597_write(r8a66597, USBE, SYSCFG0);
112 tmp = r8a66597_read(r8a66597, SYSCFG0);
114 printk(KERN_ERR "r8a66597: reg access fail.\n");
117 } while ((tmp & USBE) != USBE);
118 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
119 r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
123 r8a66597_bset(r8a66597, XCKE, SYSCFG0);
126 tmp = r8a66597_read(r8a66597, SYSCFG0);
128 printk(KERN_ERR "r8a66597: reg access fail.\n");
131 } while ((tmp & SCKE) != SCKE);
137 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
139 r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
142 if (r8a66597->pdata->on_chip) {
143 #ifdef CONFIG_HAVE_CLK
144 clk_disable(r8a66597->clk);
147 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
148 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
149 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
153 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
157 val = port ? DRPD : DCFM | DRPD;
158 r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
159 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
161 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
162 r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port));
163 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
166 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
170 r8a66597_write(r8a66597, 0, get_intenb_reg(port));
171 r8a66597_write(r8a66597, 0, get_intsts_reg(port));
173 r8a66597_port_power(r8a66597, port, 0);
176 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
178 } while (tmp == EDGESTS);
180 val = port ? DRPD : DCFM | DRPD;
181 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
182 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
185 static int enable_controller(struct r8a66597 *r8a66597)
188 u16 vif = r8a66597->pdata->vif ? LDRV : 0;
189 u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
190 u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
192 ret = r8a66597_clock_enable(r8a66597);
196 r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
197 r8a66597_bset(r8a66597, USBE, SYSCFG0);
199 r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
200 r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG);
201 r8a66597_bset(r8a66597, BRDY0, BRDYENB);
202 r8a66597_bset(r8a66597, BEMP0, BEMPENB);
204 r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
205 r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
206 r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
207 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
209 r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1);
211 for (port = 0; port < r8a66597->max_root_hub; port++)
212 r8a66597_enable_port(r8a66597, port);
217 static void disable_controller(struct r8a66597 *r8a66597)
221 /* disable interrupts */
222 r8a66597_write(r8a66597, 0, INTENB0);
223 r8a66597_write(r8a66597, 0, INTENB1);
224 r8a66597_write(r8a66597, 0, BRDYENB);
225 r8a66597_write(r8a66597, 0, BEMPENB);
226 r8a66597_write(r8a66597, 0, NRDYENB);
229 r8a66597_write(r8a66597, 0, BRDYSTS);
230 r8a66597_write(r8a66597, 0, NRDYSTS);
231 r8a66597_write(r8a66597, 0, BEMPSTS);
233 for (port = 0; port < r8a66597->max_root_hub; port++)
234 r8a66597_disable_port(r8a66597, port);
236 r8a66597_clock_disable(r8a66597);
239 static int get_parent_r8a66597_address(struct r8a66597 *r8a66597,
240 struct usb_device *udev)
242 struct r8a66597_device *dev;
244 if (udev->parent && udev->parent->devnum != 1)
247 dev = dev_get_drvdata(&udev->dev);
254 static int is_child_device(char *devpath)
256 return (devpath[2] ? 1 : 0);
259 static int is_hub_limit(char *devpath)
261 return ((strlen(devpath) >= 4) ? 1 : 0);
264 static void get_port_number(struct r8a66597 *r8a66597,
265 char *devpath, u16 *root_port, u16 *hub_port)
268 *root_port = (devpath[0] & 0x0F) - 1;
269 if (*root_port >= r8a66597->max_root_hub)
270 printk(KERN_ERR "r8a66597: Illegal root port number.\n");
273 *hub_port = devpath[2] & 0x0F;
276 static u16 get_r8a66597_usb_speed(enum usb_device_speed speed)
291 printk(KERN_ERR "r8a66597: unknown speed\n");
298 static void set_child_connect_map(struct r8a66597 *r8a66597, int address)
303 r8a66597->child_connect_map[idx] |= 1 << (address % 32);
306 static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
311 r8a66597->child_connect_map[idx] &= ~(1 << (address % 32));
314 static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
316 u16 pipenum = pipe->info.pipenum;
317 const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
318 const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
319 const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
321 if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */
322 dma_ch = R8A66597_PIPE_NO_DMA;
324 pipe->fifoaddr = fifoaddr[dma_ch];
325 pipe->fifosel = fifosel[dma_ch];
326 pipe->fifoctr = fifoctr[dma_ch];
329 pipe->pipectr = DCPCTR;
331 pipe->pipectr = get_pipectr_addr(pipenum);
333 if (check_bulk_or_isoc(pipenum)) {
334 pipe->pipetre = get_pipetre_addr(pipenum);
335 pipe->pipetrn = get_pipetrn_addr(pipenum);
342 static struct r8a66597_device *
343 get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb)
345 if (usb_pipedevice(urb->pipe) == 0)
346 return &r8a66597->device0;
348 return dev_get_drvdata(&urb->dev->dev);
351 static int make_r8a66597_device(struct r8a66597 *r8a66597,
352 struct urb *urb, u8 addr)
354 struct r8a66597_device *dev;
355 int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */
357 dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC);
361 dev_set_drvdata(&urb->dev->dev, dev);
362 dev->udev = urb->dev;
364 dev->usb_address = usb_address;
365 dev->state = USB_STATE_ADDRESS;
366 dev->ep_in_toggle = 0;
367 dev->ep_out_toggle = 0;
368 INIT_LIST_HEAD(&dev->device_list);
369 list_add_tail(&dev->device_list, &r8a66597->child_device);
371 get_port_number(r8a66597, urb->dev->devpath,
372 &dev->root_port, &dev->hub_port);
373 if (!is_child_device(urb->dev->devpath))
374 r8a66597->root_hub[dev->root_port].dev = dev;
376 set_devadd_reg(r8a66597, dev->address,
377 get_r8a66597_usb_speed(urb->dev->speed),
378 get_parent_r8a66597_address(r8a66597, urb->dev),
379 dev->hub_port, dev->root_port);
384 /* this function must be called with interrupt disabled */
385 static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb)
387 u8 addr; /* R8A66597's address */
388 struct r8a66597_device *dev;
390 if (is_hub_limit(urb->dev->devpath)) {
391 dev_err(&urb->dev->dev, "External hub limit reached.\n");
395 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
396 if (dev && dev->state >= USB_STATE_ADDRESS)
399 for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) {
400 if (r8a66597->address_map & (1 << addr))
403 dbg("alloc_address: r8a66597_addr=%d", addr);
404 r8a66597->address_map |= 1 << addr;
406 if (make_r8a66597_device(r8a66597, urb, addr) < 0)
412 dev_err(&urb->dev->dev,
413 "cannot communicate with a USB device more than 10.(%x)\n",
414 r8a66597->address_map);
419 /* this function must be called with interrupt disabled */
420 static void free_usb_address(struct r8a66597 *r8a66597,
421 struct r8a66597_device *dev, int reset)
428 dbg("free_addr: addr=%d", dev->address);
430 dev->state = USB_STATE_DEFAULT;
431 r8a66597->address_map &= ~(1 << dev->address);
434 * Only when resetting USB, it is necessary to erase drvdata. When
435 * a usb device with usb hub is disconnect, "dev->udev" is already
436 * freed on usb_desconnect(). So we cannot access the data.
439 dev_set_drvdata(&dev->udev->dev, NULL);
440 list_del(&dev->device_list);
443 for (port = 0; port < r8a66597->max_root_hub; port++) {
444 if (r8a66597->root_hub[port].dev == dev) {
445 r8a66597->root_hub[port].dev = NULL;
451 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
458 tmp = r8a66597_read(r8a66597, reg);
460 printk(KERN_ERR "r8a66597: register%lx, loop %x "
461 "is timeout\n", reg, loop);
465 } while ((tmp & mask) != loop);
468 /* this function must be called with interrupt disabled */
469 static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
473 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
474 if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */
475 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
476 r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
479 /* this function must be called with interrupt disabled */
480 static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
484 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
485 if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */
486 r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr);
487 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
488 r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0);
491 /* this function must be called with interrupt disabled */
492 static void clear_all_buffer(struct r8a66597 *r8a66597,
493 struct r8a66597_pipe *pipe)
497 if (!pipe || pipe->info.pipenum == 0)
500 pipe_stop(r8a66597, pipe);
501 r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
502 tmp = r8a66597_read(r8a66597, pipe->pipectr);
503 tmp = r8a66597_read(r8a66597, pipe->pipectr);
504 tmp = r8a66597_read(r8a66597, pipe->pipectr);
505 r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
508 /* this function must be called with interrupt disabled */
509 static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597,
510 struct r8a66597_pipe *pipe, int toggle)
513 r8a66597_bset(r8a66597, SQSET, pipe->pipectr);
515 r8a66597_bset(r8a66597, SQCLR, pipe->pipectr);
518 static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
520 if (r8a66597->pdata->on_chip)
526 /* this function must be called with interrupt disabled */
527 static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum)
529 unsigned short mbw = mbw_value(r8a66597);
531 r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL);
532 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
535 /* this function must be called with interrupt disabled */
536 static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597,
537 struct r8a66597_pipe *pipe)
539 unsigned short mbw = mbw_value(r8a66597);
541 cfifo_change(r8a66597, 0);
542 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL);
543 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL);
545 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE,
547 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum);
550 static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep)
552 struct r8a66597_pipe *pipe = hep->hcpriv;
554 if (usb_pipeendpoint(urb->pipe) == 0)
557 return pipe->info.pipenum;
560 static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb)
562 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
564 return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address;
567 static unsigned short *get_toggle_pointer(struct r8a66597_device *dev,
573 return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle;
576 /* this function must be called with interrupt disabled */
577 static void pipe_toggle_set(struct r8a66597 *r8a66597,
578 struct r8a66597_pipe *pipe,
579 struct urb *urb, int set)
581 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
582 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
583 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
589 *toggle |= 1 << endpoint;
591 *toggle &= ~(1 << endpoint);
594 /* this function must be called with interrupt disabled */
595 static void pipe_toggle_save(struct r8a66597 *r8a66597,
596 struct r8a66597_pipe *pipe,
599 if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON)
600 pipe_toggle_set(r8a66597, pipe, urb, 1);
602 pipe_toggle_set(r8a66597, pipe, urb, 0);
605 /* this function must be called with interrupt disabled */
606 static void pipe_toggle_restore(struct r8a66597 *r8a66597,
607 struct r8a66597_pipe *pipe,
610 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
611 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
612 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
617 r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint));
620 /* this function must be called with interrupt disabled */
621 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
622 struct r8a66597_pipe_info *info)
626 if (info->pipenum == 0)
629 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
630 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
631 r8a66597_write(r8a66597, info->pipenum, PIPESEL);
634 if (info->type == R8A66597_BULK && info->dir_in)
635 val |= R8A66597_DBLB | R8A66597_SHTNAK;
636 val |= info->type | info->epnum;
637 r8a66597_write(r8a66597, val, PIPECFG);
639 r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum),
641 r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket,
643 r8a66597_write(r8a66597, info->interval, PIPEPERI);
646 /* this function must be called with interrupt disabled */
647 static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td)
649 struct r8a66597_pipe_info *info;
650 struct urb *urb = td->urb;
652 if (td->pipenum > 0) {
653 info = &td->pipe->info;
654 cfifo_change(r8a66597, 0);
655 pipe_buffer_setting(r8a66597, info);
657 if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
658 usb_pipeout(urb->pipe)) &&
659 !usb_pipecontrol(urb->pipe)) {
660 r8a66597_pipe_toggle(r8a66597, td->pipe, 0);
661 pipe_toggle_set(r8a66597, td->pipe, urb, 0);
662 clear_all_buffer(r8a66597, td->pipe);
663 usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
664 usb_pipeout(urb->pipe), 1);
666 pipe_toggle_restore(r8a66597, td->pipe, urb);
670 /* this function must be called with interrupt disabled */
671 static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
672 struct usb_endpoint_descriptor *ep)
674 u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
676 memset(array, 0, sizeof(array));
677 switch (usb_endpoint_type(ep)) {
678 case USB_ENDPOINT_XFER_BULK:
679 if (usb_endpoint_dir_in(ep))
686 case USB_ENDPOINT_XFER_INT:
687 if (usb_endpoint_dir_in(ep)) {
694 case USB_ENDPOINT_XFER_ISOC:
695 if (usb_endpoint_dir_in(ep))
701 printk(KERN_ERR "r8a66597: Illegal type\n");
707 while (array[i] != 0) {
708 if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]])
716 static u16 get_r8a66597_type(__u8 type)
721 case USB_ENDPOINT_XFER_BULK:
722 r8a66597_type = R8A66597_BULK;
724 case USB_ENDPOINT_XFER_INT:
725 r8a66597_type = R8A66597_INT;
727 case USB_ENDPOINT_XFER_ISOC:
728 r8a66597_type = R8A66597_ISO;
731 printk(KERN_ERR "r8a66597: Illegal type\n");
732 r8a66597_type = 0x0000;
736 return r8a66597_type;
739 static u16 get_bufnum(u16 pipenum)
745 else if (check_bulk_or_isoc(pipenum))
746 bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2;
747 else if (check_interrupt(pipenum))
748 bufnum = 4 + (pipenum - 6);
750 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
755 static u16 get_buf_bsize(u16 pipenum)
761 else if (check_bulk_or_isoc(pipenum))
762 buf_bsize = R8A66597_BUF_BSIZE - 1;
763 else if (check_interrupt(pipenum))
766 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
771 /* this function must be called with interrupt disabled */
772 static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597,
773 struct r8a66597_device *dev,
774 struct r8a66597_pipe *pipe,
778 struct r8a66597_pipe_info *info = &pipe->info;
779 unsigned short mbw = mbw_value(r8a66597);
781 /* pipe dma is only for external controlles */
782 if (r8a66597->pdata->on_chip)
785 if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) {
786 for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) {
787 if ((r8a66597->dma_map & (1 << i)) != 0)
790 dev_info(&dev->udev->dev,
791 "address %d, EndpointAddress 0x%02x use "
792 "DMA FIFO\n", usb_pipedevice(urb->pipe),
794 USB_ENDPOINT_DIR_MASK + info->epnum
797 r8a66597->dma_map |= 1 << i;
798 dev->dma_map |= 1 << i;
799 set_pipe_reg_addr(pipe, i);
801 cfifo_change(r8a66597, 0);
802 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum,
803 mbw | CURPIPE, pipe->fifosel);
805 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE,
807 r8a66597_bset(r8a66597, BCLR, pipe->fifoctr);
813 /* this function must be called with interrupt disabled */
814 static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb,
815 struct usb_host_endpoint *hep,
816 struct r8a66597_pipe_info *info)
818 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
819 struct r8a66597_pipe *pipe = hep->hcpriv;
824 set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA);
825 r8a66597->pipe_cnt[pipe->info.pipenum]++;
826 dev->pipe_cnt[pipe->info.pipenum]++;
828 enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb);
831 static void r8a66597_urb_done(struct r8a66597 *r8a66597, struct urb *urb,
833 __releases(r8a66597->lock)
834 __acquires(r8a66597->lock)
836 if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) {
839 for (ptr = urb->transfer_buffer;
840 ptr < urb->transfer_buffer + urb->transfer_buffer_length;
842 flush_dcache_page(virt_to_page(ptr));
845 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
846 spin_unlock(&r8a66597->lock);
847 usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, status);
848 spin_lock(&r8a66597->lock);
851 /* this function must be called with interrupt disabled */
852 static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
854 struct r8a66597_td *td, *next;
856 struct list_head *list = &r8a66597->pipe_queue[pipenum];
858 if (list_empty(list))
861 list_for_each_entry_safe(td, next, list, queue) {
862 if (td->address != address)
866 list_del(&td->queue);
870 r8a66597_urb_done(r8a66597, urb, -ENODEV);
876 /* this function must be called with interrupt disabled */
877 static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
878 struct r8a66597_device *dev)
886 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
887 if (!dev->pipe_cnt[pipenum])
892 force_dequeue(r8a66597, 0, dev->address);
895 r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
896 dev->pipe_cnt[pipenum] = 0;
897 force_dequeue(r8a66597, pipenum, dev->address);
902 r8a66597->dma_map &= ~(dev->dma_map);
906 static u16 get_interval(struct urb *urb, __u8 interval)
911 if (urb->dev->speed == USB_SPEED_HIGH) {
915 time = interval ? interval - 1 : 0;
917 if (interval > 128) {
920 /* calculate the nearest value for PIPEPERI */
921 for (i = 0; i < 7; i++) {
922 if ((1 << i) < interval &&
923 (1 << (i + 1) > interval))
932 static unsigned long get_timer_interval(struct urb *urb, __u8 interval)
935 unsigned long time = 1;
937 if (usb_pipeisoc(urb->pipe))
940 if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) {
941 for (i = 0; i < (interval - 1); i++)
943 time = time * 125 / 1000; /* uSOF -> msec */
951 /* this function must be called with interrupt disabled */
952 static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
953 struct usb_host_endpoint *hep,
954 struct usb_endpoint_descriptor *ep)
956 struct r8a66597_pipe_info info;
958 info.pipenum = get_empty_pipenum(r8a66597, ep);
959 info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
960 info.epnum = usb_endpoint_num(ep);
961 info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
962 info.type = get_r8a66597_type(usb_endpoint_type(ep));
963 info.bufnum = get_bufnum(info.pipenum);
964 info.buf_bsize = get_buf_bsize(info.pipenum);
965 if (info.type == R8A66597_BULK) {
967 info.timer_interval = 0;
969 info.interval = get_interval(urb, ep->bInterval);
970 info.timer_interval = get_timer_interval(urb, ep->bInterval);
972 if (usb_endpoint_dir_in(ep))
977 enable_r8a66597_pipe(r8a66597, urb, hep, &info);
980 static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
982 struct r8a66597_device *dev;
984 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
985 dev->state = USB_STATE_CONFIGURED;
988 static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
991 if (pipenum == 0 && usb_pipeout(urb->pipe))
992 enable_irq_empty(r8a66597, pipenum);
994 enable_irq_ready(r8a66597, pipenum);
996 if (!usb_pipeisoc(urb->pipe))
997 enable_irq_nrdy(r8a66597, pipenum);
1000 static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
1002 disable_irq_ready(r8a66597, pipenum);
1003 disable_irq_nrdy(r8a66597, pipenum);
1006 static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597)
1008 mod_timer(&r8a66597->rh_timer,
1009 jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME));
1012 static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port,
1015 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1017 rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1018 rh->scount = R8A66597_MAX_SAMPLING;
1020 rh->port |= 1 << USB_PORT_FEAT_CONNECTION;
1022 rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION);
1023 rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION;
1025 r8a66597_root_hub_start_polling(r8a66597);
1028 /* this function must be called with interrupt disabled */
1029 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port,
1031 __releases(r8a66597->lock)
1032 __acquires(r8a66597->lock)
1034 if (syssts == SE0) {
1035 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1036 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1038 if (syssts == FS_JSTS)
1039 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
1040 else if (syssts == LS_JSTS)
1041 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
1043 r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port));
1044 r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
1046 if (r8a66597->bus_suspended)
1047 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1050 spin_unlock(&r8a66597->lock);
1051 usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597));
1052 spin_lock(&r8a66597->lock);
1055 /* this function must be called with interrupt disabled */
1056 static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
1058 u16 speed = get_rh_usb_speed(r8a66597, port);
1059 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1061 rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) |
1062 (1 << USB_PORT_FEAT_LOWSPEED));
1063 if (speed == HSMODE)
1064 rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
1065 else if (speed == LSMODE)
1066 rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
1068 rh->port &= ~(1 << USB_PORT_FEAT_RESET);
1069 rh->port |= 1 << USB_PORT_FEAT_ENABLE;
1072 /* this function must be called with interrupt disabled */
1073 static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
1075 struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
1077 disable_r8a66597_pipe_all(r8a66597, dev);
1078 free_usb_address(r8a66597, dev, 0);
1080 start_root_hub_sampling(r8a66597, port, 0);
1083 /* this function must be called with interrupt disabled */
1084 static void prepare_setup_packet(struct r8a66597 *r8a66597,
1085 struct r8a66597_td *td)
1088 __le16 *p = (__le16 *)td->urb->setup_packet;
1089 unsigned long setup_addr = USBREQ;
1091 r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
1093 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
1095 for (i = 0; i < 4; i++) {
1096 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
1099 r8a66597_write(r8a66597, SUREQ, DCPCTR);
1102 /* this function must be called with interrupt disabled */
1103 static void prepare_packet_read(struct r8a66597 *r8a66597,
1104 struct r8a66597_td *td)
1106 struct urb *urb = td->urb;
1108 if (usb_pipecontrol(urb->pipe)) {
1109 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1110 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1111 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1112 if (urb->actual_length == 0) {
1113 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1114 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1116 pipe_irq_disable(r8a66597, td->pipenum);
1117 pipe_start(r8a66597, td->pipe);
1118 pipe_irq_enable(r8a66597, urb, td->pipenum);
1120 if (urb->actual_length == 0) {
1121 pipe_irq_disable(r8a66597, td->pipenum);
1122 pipe_setting(r8a66597, td);
1123 pipe_stop(r8a66597, td->pipe);
1124 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1126 if (td->pipe->pipetre) {
1127 r8a66597_write(r8a66597, TRCLR,
1129 r8a66597_write(r8a66597,
1131 (urb->transfer_buffer_length,
1134 r8a66597_bset(r8a66597, TRENB,
1138 pipe_start(r8a66597, td->pipe);
1139 pipe_irq_enable(r8a66597, urb, td->pipenum);
1144 /* this function must be called with interrupt disabled */
1145 static void prepare_packet_write(struct r8a66597 *r8a66597,
1146 struct r8a66597_td *td)
1149 struct urb *urb = td->urb;
1151 if (usb_pipecontrol(urb->pipe)) {
1152 pipe_stop(r8a66597, td->pipe);
1153 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1154 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1155 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1156 if (urb->actual_length == 0) {
1157 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1158 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1161 if (urb->actual_length == 0)
1162 pipe_setting(r8a66597, td);
1163 if (td->pipe->pipetre)
1164 r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
1166 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1168 fifo_change_from_pipe(r8a66597, td->pipe);
1169 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1170 if (unlikely((tmp & FRDY) == 0))
1171 pipe_irq_enable(r8a66597, urb, td->pipenum);
1173 packet_write(r8a66597, td->pipenum);
1174 pipe_start(r8a66597, td->pipe);
1177 /* this function must be called with interrupt disabled */
1178 static void prepare_status_packet(struct r8a66597 *r8a66597,
1179 struct r8a66597_td *td)
1181 struct urb *urb = td->urb;
1183 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1184 pipe_stop(r8a66597, td->pipe);
1186 if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
1187 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1188 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1189 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1190 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
1191 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
1192 enable_irq_empty(r8a66597, 0);
1194 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1195 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1196 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1197 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1198 enable_irq_ready(r8a66597, 0);
1200 enable_irq_nrdy(r8a66597, 0);
1201 pipe_start(r8a66597, td->pipe);
1204 static int is_set_address(unsigned char *setup_packet)
1206 if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) &&
1207 setup_packet[1] == USB_REQ_SET_ADDRESS)
1213 /* this function must be called with interrupt disabled */
1214 static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1220 if (is_set_address(td->urb->setup_packet)) {
1221 td->set_address = 1;
1222 td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
1224 if (td->urb->setup_packet[2] == 0)
1227 prepare_setup_packet(r8a66597, td);
1230 prepare_packet_read(r8a66597, td);
1233 prepare_packet_write(r8a66597, td);
1236 prepare_status_packet(r8a66597, td);
1239 printk(KERN_ERR "r8a66597: invalid type.\n");
1246 static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
1248 if (usb_pipeisoc(urb->pipe)) {
1249 if (urb->number_of_packets == td->iso_cnt)
1253 /* control or bulk or interrupt */
1254 if ((urb->transfer_buffer_length <= urb->actual_length) ||
1255 (td->short_packet) || (td->zero_packet))
1261 /* this function must be called with interrupt disabled */
1262 static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1268 if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
1269 !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
1270 r8a66597->timeout_map |= 1 << td->pipenum;
1271 switch (usb_pipetype(td->urb->pipe)) {
1272 case PIPE_INTERRUPT:
1273 case PIPE_ISOCHRONOUS:
1281 mod_timer(&r8a66597->td_timer[td->pipenum],
1282 jiffies + msecs_to_jiffies(time));
1286 /* this function must be called with interrupt disabled */
1287 static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
1288 u16 pipenum, struct urb *urb, int status)
1289 __releases(r8a66597->lock) __acquires(r8a66597->lock)
1292 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
1294 r8a66597->timeout_map &= ~(1 << pipenum);
1297 if (td->set_address && (status != 0 || urb->unlinked))
1298 r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
1300 pipe_toggle_save(r8a66597, td->pipe, urb);
1301 list_del(&td->queue);
1305 if (!list_empty(&r8a66597->pipe_queue[pipenum]))
1309 if (usb_pipeisoc(urb->pipe))
1310 urb->start_frame = r8a66597_get_frame(hcd);
1312 r8a66597_urb_done(r8a66597, urb, status);
1316 td = r8a66597_get_td(r8a66597, pipenum);
1320 start_transfer(r8a66597, td);
1321 set_td_timer(r8a66597, td);
1325 static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
1328 int rcv_len, bufsize, urb_len, size;
1330 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1339 fifo_change_from_pipe(r8a66597, td->pipe);
1340 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1341 if (unlikely((tmp & FRDY) == 0)) {
1342 pipe_stop(r8a66597, td->pipe);
1343 pipe_irq_disable(r8a66597, pipenum);
1344 printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum);
1345 finish_request(r8a66597, td, pipenum, td->urb, -EPIPE);
1349 /* prepare parameters */
1350 rcv_len = tmp & DTLN;
1351 if (usb_pipeisoc(urb->pipe)) {
1352 buf = (u16 *)(urb->transfer_buffer +
1353 urb->iso_frame_desc[td->iso_cnt].offset);
1354 urb_len = urb->iso_frame_desc[td->iso_cnt].length;
1356 buf = (void *)urb->transfer_buffer + urb->actual_length;
1357 urb_len = urb->transfer_buffer_length - urb->actual_length;
1359 bufsize = min(urb_len, (int) td->maxpacket);
1360 if (rcv_len <= bufsize) {
1364 status = -EOVERFLOW;
1368 /* update parameters */
1369 urb->actual_length += size;
1371 td->zero_packet = 1;
1372 if (rcv_len < bufsize) {
1373 td->short_packet = 1;
1375 if (usb_pipeisoc(urb->pipe)) {
1376 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1377 urb->iso_frame_desc[td->iso_cnt].status = status;
1382 /* check transfer finish */
1383 if (finish || check_transfer_finish(td, urb)) {
1384 pipe_stop(r8a66597, td->pipe);
1385 pipe_irq_disable(r8a66597, pipenum);
1390 if (urb->transfer_buffer) {
1392 r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
1394 r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
1398 if (finish && pipenum != 0)
1399 finish_request(r8a66597, td, pipenum, urb, status);
1402 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
1407 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1414 fifo_change_from_pipe(r8a66597, td->pipe);
1415 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1416 if (unlikely((tmp & FRDY) == 0)) {
1417 pipe_stop(r8a66597, td->pipe);
1418 pipe_irq_disable(r8a66597, pipenum);
1419 printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum);
1420 finish_request(r8a66597, td, pipenum, urb, -EPIPE);
1424 /* prepare parameters */
1425 bufsize = td->maxpacket;
1426 if (usb_pipeisoc(urb->pipe)) {
1427 buf = (u16 *)(urb->transfer_buffer +
1428 urb->iso_frame_desc[td->iso_cnt].offset);
1430 (int)urb->iso_frame_desc[td->iso_cnt].length);
1432 buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
1433 size = min_t(u32, bufsize,
1434 urb->transfer_buffer_length - urb->actual_length);
1439 r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
1440 if (urb->transfer_buffer) {
1441 r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
1442 if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
1443 r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
1446 /* update parameters */
1447 urb->actual_length += size;
1448 if (usb_pipeisoc(urb->pipe)) {
1449 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1450 urb->iso_frame_desc[td->iso_cnt].status = 0;
1454 /* check transfer finish */
1455 if (check_transfer_finish(td, urb)) {
1456 disable_irq_ready(r8a66597, pipenum);
1457 enable_irq_empty(r8a66597, pipenum);
1458 if (!usb_pipeisoc(urb->pipe))
1459 enable_irq_nrdy(r8a66597, pipenum);
1461 pipe_irq_enable(r8a66597, urb, pipenum);
1465 static void check_next_phase(struct r8a66597 *r8a66597, int status)
1467 struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
1478 if (check_transfer_finish(td, urb))
1479 td->type = USB_PID_ACK;
1482 if (urb->transfer_buffer_length == urb->actual_length)
1483 td->type = USB_PID_ACK;
1484 else if (usb_pipeout(urb->pipe))
1485 td->type = USB_PID_OUT;
1487 td->type = USB_PID_IN;
1494 if (finish || status != 0 || urb->unlinked)
1495 finish_request(r8a66597, td, 0, urb, status);
1497 start_transfer(r8a66597, td);
1500 static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
1502 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1505 u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
1515 static void irq_pipe_ready(struct r8a66597 *r8a66597)
1520 struct r8a66597_td *td;
1522 mask = r8a66597_read(r8a66597, BRDYSTS)
1523 & r8a66597_read(r8a66597, BRDYENB);
1524 r8a66597_write(r8a66597, ~mask, BRDYSTS);
1526 td = r8a66597_get_td(r8a66597, 0);
1527 if (td && td->type == USB_PID_IN)
1528 packet_read(r8a66597, 0);
1530 pipe_irq_disable(r8a66597, 0);
1531 check_next_phase(r8a66597, 0);
1534 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1535 check = 1 << pipenum;
1537 td = r8a66597_get_td(r8a66597, pipenum);
1541 if (td->type == USB_PID_IN)
1542 packet_read(r8a66597, pipenum);
1543 else if (td->type == USB_PID_OUT)
1544 packet_write(r8a66597, pipenum);
1549 static void irq_pipe_empty(struct r8a66597 *r8a66597)
1555 struct r8a66597_td *td;
1557 mask = r8a66597_read(r8a66597, BEMPSTS)
1558 & r8a66597_read(r8a66597, BEMPENB);
1559 r8a66597_write(r8a66597, ~mask, BEMPSTS);
1561 cfifo_change(r8a66597, 0);
1562 td = r8a66597_get_td(r8a66597, 0);
1563 if (td && td->type != USB_PID_OUT)
1564 disable_irq_empty(r8a66597, 0);
1565 check_next_phase(r8a66597, 0);
1568 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1569 check = 1 << pipenum;
1571 struct r8a66597_td *td;
1572 td = r8a66597_get_td(r8a66597, pipenum);
1576 tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
1577 if ((tmp & INBUFM) == 0) {
1578 disable_irq_empty(r8a66597, pipenum);
1579 pipe_irq_disable(r8a66597, pipenum);
1580 finish_request(r8a66597, td, pipenum, td->urb,
1587 static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
1594 mask = r8a66597_read(r8a66597, NRDYSTS)
1595 & r8a66597_read(r8a66597, NRDYENB);
1596 r8a66597_write(r8a66597, ~mask, NRDYSTS);
1598 cfifo_change(r8a66597, 0);
1599 status = get_urb_error(r8a66597, 0);
1600 pipe_irq_disable(r8a66597, 0);
1601 check_next_phase(r8a66597, status);
1604 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1605 check = 1 << pipenum;
1607 struct r8a66597_td *td;
1608 td = r8a66597_get_td(r8a66597, pipenum);
1612 status = get_urb_error(r8a66597, pipenum);
1613 pipe_irq_disable(r8a66597, pipenum);
1614 pipe_stop(r8a66597, td->pipe);
1615 finish_request(r8a66597, td, pipenum, td->urb, status);
1620 static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
1622 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1623 u16 intsts0, intsts1, intsts2;
1624 u16 intenb0, intenb1, intenb2;
1625 u16 mask0, mask1, mask2;
1628 spin_lock(&r8a66597->lock);
1630 intsts0 = r8a66597_read(r8a66597, INTSTS0);
1631 intsts1 = r8a66597_read(r8a66597, INTSTS1);
1632 intsts2 = r8a66597_read(r8a66597, INTSTS2);
1633 intenb0 = r8a66597_read(r8a66597, INTENB0);
1634 intenb1 = r8a66597_read(r8a66597, INTENB1);
1635 intenb2 = r8a66597_read(r8a66597, INTENB2);
1637 mask2 = intsts2 & intenb2;
1638 mask1 = intsts1 & intenb1;
1639 mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
1641 if (mask2 & ATTCH) {
1642 r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
1643 r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
1645 /* start usb bus sampling */
1646 start_root_hub_sampling(r8a66597, 1, 1);
1649 r8a66597_write(r8a66597, ~DTCH, INTSTS2);
1650 r8a66597_bclr(r8a66597, DTCHE, INTENB2);
1651 r8a66597_usb_disconnect(r8a66597, 1);
1654 r8a66597_write(r8a66597, ~BCHG, INTSTS2);
1655 r8a66597_bclr(r8a66597, BCHGE, INTENB2);
1656 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1661 if (mask1 & ATTCH) {
1662 r8a66597_write(r8a66597, ~ATTCH, INTSTS1);
1663 r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
1665 /* start usb bus sampling */
1666 start_root_hub_sampling(r8a66597, 0, 1);
1669 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
1670 r8a66597_bclr(r8a66597, DTCHE, INTENB1);
1671 r8a66597_usb_disconnect(r8a66597, 0);
1674 r8a66597_write(r8a66597, ~BCHG, INTSTS1);
1675 r8a66597_bclr(r8a66597, BCHGE, INTENB1);
1676 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1680 r8a66597_write(r8a66597, ~SIGN, INTSTS1);
1681 status = get_urb_error(r8a66597, 0);
1682 check_next_phase(r8a66597, status);
1685 r8a66597_write(r8a66597, ~SACK, INTSTS1);
1686 check_next_phase(r8a66597, 0);
1691 irq_pipe_ready(r8a66597);
1693 irq_pipe_empty(r8a66597);
1695 irq_pipe_nrdy(r8a66597);
1698 spin_unlock(&r8a66597->lock);
1702 /* this function must be called with interrupt disabled */
1703 static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
1706 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1708 if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
1709 unsigned long dvstctr_reg = get_dvstctr_reg(port);
1711 tmp = r8a66597_read(r8a66597, dvstctr_reg);
1712 if ((tmp & USBRST) == USBRST) {
1713 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
1715 r8a66597_root_hub_start_polling(r8a66597);
1717 r8a66597_usb_connect(r8a66597, port);
1720 if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) {
1721 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1722 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1725 if (rh->scount > 0) {
1726 tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1727 if (tmp == rh->old_syssts) {
1729 if (rh->scount == 0)
1730 r8a66597_check_syssts(r8a66597, port, tmp);
1732 r8a66597_root_hub_start_polling(r8a66597);
1734 rh->scount = R8A66597_MAX_SAMPLING;
1735 rh->old_syssts = tmp;
1736 r8a66597_root_hub_start_polling(r8a66597);
1741 static void r8a66597_interval_timer(unsigned long _r8a66597)
1743 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1744 unsigned long flags;
1746 struct r8a66597_td *td;
1748 spin_lock_irqsave(&r8a66597->lock, flags);
1750 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1751 if (!(r8a66597->interval_map & (1 << pipenum)))
1753 if (timer_pending(&r8a66597->interval_timer[pipenum]))
1756 td = r8a66597_get_td(r8a66597, pipenum);
1758 start_transfer(r8a66597, td);
1761 spin_unlock_irqrestore(&r8a66597->lock, flags);
1764 static void r8a66597_td_timer(unsigned long _r8a66597)
1766 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1767 unsigned long flags;
1769 struct r8a66597_td *td, *new_td = NULL;
1770 struct r8a66597_pipe *pipe;
1772 spin_lock_irqsave(&r8a66597->lock, flags);
1773 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1774 if (!(r8a66597->timeout_map & (1 << pipenum)))
1776 if (timer_pending(&r8a66597->td_timer[pipenum]))
1779 td = r8a66597_get_td(r8a66597, pipenum);
1781 r8a66597->timeout_map &= ~(1 << pipenum);
1785 if (td->urb->actual_length) {
1786 set_td_timer(r8a66597, td);
1791 pipe_stop(r8a66597, pipe);
1795 list_move_tail(&new_td->queue,
1796 &r8a66597->pipe_queue[pipenum]);
1797 new_td = r8a66597_get_td(r8a66597, pipenum);
1802 } while (td != new_td && td->address == new_td->address);
1804 start_transfer(r8a66597, new_td);
1807 r8a66597->timeout_map &= ~(1 << pipenum);
1809 set_td_timer(r8a66597, new_td);
1812 spin_unlock_irqrestore(&r8a66597->lock, flags);
1815 static void r8a66597_timer(unsigned long _r8a66597)
1817 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1818 unsigned long flags;
1821 spin_lock_irqsave(&r8a66597->lock, flags);
1823 for (port = 0; port < r8a66597->max_root_hub; port++)
1824 r8a66597_root_hub_control(r8a66597, port);
1826 spin_unlock_irqrestore(&r8a66597->lock, flags);
1829 static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
1831 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
1833 if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
1834 (urb->dev->state == USB_STATE_CONFIGURED))
1840 static int r8a66597_start(struct usb_hcd *hcd)
1842 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1844 hcd->state = HC_STATE_RUNNING;
1845 return enable_controller(r8a66597);
1848 static void r8a66597_stop(struct usb_hcd *hcd)
1850 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1852 disable_controller(r8a66597);
1855 static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
1857 unsigned int usb_address = usb_pipedevice(urb->pipe);
1858 u16 root_port, hub_port;
1860 if (usb_address == 0) {
1861 get_port_number(r8a66597, urb->dev->devpath,
1862 &root_port, &hub_port);
1863 set_devadd_reg(r8a66597, 0,
1864 get_r8a66597_usb_speed(urb->dev->speed),
1865 get_parent_r8a66597_address(r8a66597, urb->dev),
1866 hub_port, root_port);
1870 static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
1872 struct usb_host_endpoint *hep)
1874 struct r8a66597_td *td;
1877 td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC);
1881 pipenum = r8a66597_get_pipenum(urb, hep);
1882 td->pipenum = pipenum;
1883 td->pipe = hep->hcpriv;
1885 td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
1886 td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
1887 !usb_pipein(urb->pipe));
1888 if (usb_pipecontrol(urb->pipe))
1889 td->type = USB_PID_SETUP;
1890 else if (usb_pipein(urb->pipe))
1891 td->type = USB_PID_IN;
1893 td->type = USB_PID_OUT;
1894 INIT_LIST_HEAD(&td->queue);
1899 static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
1903 struct usb_host_endpoint *hep = urb->ep;
1904 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1905 struct r8a66597_td *td = NULL;
1906 int ret, request = 0;
1907 unsigned long flags;
1909 spin_lock_irqsave(&r8a66597->lock, flags);
1910 if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
1912 goto error_not_linked;
1915 ret = usb_hcd_link_urb_to_ep(hcd, urb);
1917 goto error_not_linked;
1920 hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe),
1926 set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
1927 if (usb_pipeendpoint(urb->pipe))
1928 init_pipe_info(r8a66597, urb, hep, &hep->desc);
1931 if (unlikely(check_pipe_config(r8a66597, urb)))
1932 init_pipe_config(r8a66597, urb);
1934 set_address_zero(r8a66597, urb);
1935 td = r8a66597_make_td(r8a66597, urb, hep);
1940 if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
1942 list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
1946 if (td->pipe->info.timer_interval) {
1947 r8a66597->interval_map |= 1 << td->pipenum;
1948 mod_timer(&r8a66597->interval_timer[td->pipenum],
1949 jiffies + msecs_to_jiffies(
1950 td->pipe->info.timer_interval));
1952 ret = start_transfer(r8a66597, td);
1954 list_del(&td->queue);
1959 set_td_timer(r8a66597, td);
1963 usb_hcd_unlink_urb_from_ep(hcd, urb);
1965 spin_unlock_irqrestore(&r8a66597->lock, flags);
1969 static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1972 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1973 struct r8a66597_td *td;
1974 unsigned long flags;
1977 spin_lock_irqsave(&r8a66597->lock, flags);
1978 rc = usb_hcd_check_unlink_urb(hcd, urb, status);
1984 pipe_stop(r8a66597, td->pipe);
1985 pipe_irq_disable(r8a66597, td->pipenum);
1986 disable_irq_empty(r8a66597, td->pipenum);
1987 finish_request(r8a66597, td, td->pipenum, urb, status);
1990 spin_unlock_irqrestore(&r8a66597->lock, flags);
1994 static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
1995 struct usb_host_endpoint *hep)
1997 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1998 struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
1999 struct r8a66597_td *td;
2000 struct urb *urb = NULL;
2002 unsigned long flags;
2006 pipenum = pipe->info.pipenum;
2014 spin_lock_irqsave(&r8a66597->lock, flags);
2015 pipe_stop(r8a66597, pipe);
2016 pipe_irq_disable(r8a66597, pipenum);
2017 disable_irq_empty(r8a66597, pipenum);
2018 td = r8a66597_get_td(r8a66597, pipenum);
2021 finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN);
2024 spin_unlock_irqrestore(&r8a66597->lock, flags);
2027 static int r8a66597_get_frame(struct usb_hcd *hcd)
2029 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2030 return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
2033 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
2037 if (udev->state == USB_STATE_CONFIGURED &&
2038 udev->parent && udev->parent->devnum > 1 &&
2039 udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
2040 map[udev->devnum/32] |= (1 << (udev->devnum % 32));
2042 for (chix = 0; chix < udev->maxchild; chix++) {
2043 struct usb_device *childdev = udev->children[chix];
2046 collect_usb_address_map(childdev, map);
2050 /* this function must be called with interrupt disabled */
2051 static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
2054 struct r8a66597_device *dev;
2055 struct list_head *list = &r8a66597->child_device;
2057 list_for_each_entry(dev, list, device_list) {
2058 if (dev->usb_address != addr)
2064 printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr);
2068 static void update_usb_address_map(struct r8a66597 *r8a66597,
2069 struct usb_device *root_hub,
2074 unsigned long flags;
2076 for (i = 0; i < 4; i++) {
2077 diff = r8a66597->child_connect_map[i] ^ map[i];
2081 for (j = 0; j < 32; j++) {
2082 if (!(diff & (1 << j)))
2086 if (map[i] & (1 << j))
2087 set_child_connect_map(r8a66597, addr);
2089 struct r8a66597_device *dev;
2091 spin_lock_irqsave(&r8a66597->lock, flags);
2092 dev = get_r8a66597_device(r8a66597, addr);
2093 disable_r8a66597_pipe_all(r8a66597, dev);
2094 free_usb_address(r8a66597, dev, 0);
2095 put_child_connect_map(r8a66597, addr);
2096 spin_unlock_irqrestore(&r8a66597->lock, flags);
2102 static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
2103 struct usb_hcd *hcd)
2105 struct usb_bus *bus;
2106 unsigned long now_map[4];
2108 memset(now_map, 0, sizeof(now_map));
2110 list_for_each_entry(bus, &usb_bus_list, bus_list) {
2114 if (bus->busnum != hcd->self.busnum)
2117 collect_usb_address_map(bus->root_hub, now_map);
2118 update_usb_address_map(r8a66597, bus->root_hub, now_map);
2122 static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
2124 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2125 unsigned long flags;
2128 r8a66597_check_detect_child(r8a66597, hcd);
2130 spin_lock_irqsave(&r8a66597->lock, flags);
2132 *buf = 0; /* initialize (no change) */
2134 for (i = 0; i < r8a66597->max_root_hub; i++) {
2135 if (r8a66597->root_hub[i].port & 0xffff0000)
2136 *buf |= 1 << (i + 1);
2139 spin_unlock_irqrestore(&r8a66597->lock, flags);
2144 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
2145 struct usb_hub_descriptor *desc)
2147 desc->bDescriptorType = 0x29;
2148 desc->bHubContrCurrent = 0;
2149 desc->bNbrPorts = r8a66597->max_root_hub;
2150 desc->bDescLength = 9;
2151 desc->bPwrOn2PwrGood = 0;
2152 desc->wHubCharacteristics = cpu_to_le16(0x0011);
2153 desc->bitmap[0] = ((1 << r8a66597->max_root_hub) - 1) << 1;
2154 desc->bitmap[1] = ~0;
2157 static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2158 u16 wIndex, char *buf, u16 wLength)
2160 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2162 int port = (wIndex & 0x00FF) - 1;
2163 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2164 unsigned long flags;
2168 spin_lock_irqsave(&r8a66597->lock, flags);
2170 case ClearHubFeature:
2173 case C_HUB_OVER_CURRENT:
2174 case C_HUB_LOCAL_POWER:
2180 case ClearPortFeature:
2181 if (wIndex > r8a66597->max_root_hub)
2187 case USB_PORT_FEAT_ENABLE:
2188 rh->port &= ~(1 << USB_PORT_FEAT_POWER);
2190 case USB_PORT_FEAT_SUSPEND:
2192 case USB_PORT_FEAT_POWER:
2193 r8a66597_port_power(r8a66597, port, 0);
2195 case USB_PORT_FEAT_C_ENABLE:
2196 case USB_PORT_FEAT_C_SUSPEND:
2197 case USB_PORT_FEAT_C_CONNECTION:
2198 case USB_PORT_FEAT_C_OVER_CURRENT:
2199 case USB_PORT_FEAT_C_RESET:
2204 rh->port &= ~(1 << wValue);
2206 case GetHubDescriptor:
2207 r8a66597_hub_descriptor(r8a66597,
2208 (struct usb_hub_descriptor *)buf);
2214 if (wIndex > r8a66597->max_root_hub)
2216 *(__le32 *)buf = cpu_to_le32(rh->port);
2218 case SetPortFeature:
2219 if (wIndex > r8a66597->max_root_hub)
2225 case USB_PORT_FEAT_SUSPEND:
2227 case USB_PORT_FEAT_POWER:
2228 r8a66597_port_power(r8a66597, port, 1);
2229 rh->port |= (1 << USB_PORT_FEAT_POWER);
2231 case USB_PORT_FEAT_RESET: {
2232 struct r8a66597_device *dev = rh->dev;
2234 rh->port |= (1 << USB_PORT_FEAT_RESET);
2236 disable_r8a66597_pipe_all(r8a66597, dev);
2237 free_usb_address(r8a66597, dev, 1);
2239 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
2240 get_dvstctr_reg(port));
2241 mod_timer(&r8a66597->rh_timer,
2242 jiffies + msecs_to_jiffies(50));
2248 rh->port |= 1 << wValue;
2256 spin_unlock_irqrestore(&r8a66597->lock, flags);
2260 #if defined(CONFIG_PM)
2261 static int r8a66597_bus_suspend(struct usb_hcd *hcd)
2263 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2266 dbg("%s", __func__);
2268 for (port = 0; port < r8a66597->max_root_hub; port++) {
2269 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2270 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2272 if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE)))
2275 dbg("suspend port = %d", port);
2276 r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */
2277 rh->port |= 1 << USB_PORT_FEAT_SUSPEND;
2279 if (rh->dev->udev->do_remote_wakeup) {
2280 msleep(3); /* waiting last SOF */
2281 r8a66597_bset(r8a66597, RWUPE, dvstctr_reg);
2282 r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port));
2283 r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port));
2287 r8a66597->bus_suspended = 1;
2292 static int r8a66597_bus_resume(struct usb_hcd *hcd)
2294 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2297 dbg("%s", __func__);
2299 for (port = 0; port < r8a66597->max_root_hub; port++) {
2300 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2301 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2303 if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND)))
2306 dbg("resume port = %d", port);
2307 rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND);
2308 rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND;
2309 r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
2311 r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
2318 #define r8a66597_bus_suspend NULL
2319 #define r8a66597_bus_resume NULL
2322 static struct hc_driver r8a66597_hc_driver = {
2323 .description = hcd_name,
2324 .hcd_priv_size = sizeof(struct r8a66597),
2325 .irq = r8a66597_irq,
2328 * generic hardware linkage
2332 .start = r8a66597_start,
2333 .stop = r8a66597_stop,
2336 * managing i/o requests and associated device resources
2338 .urb_enqueue = r8a66597_urb_enqueue,
2339 .urb_dequeue = r8a66597_urb_dequeue,
2340 .endpoint_disable = r8a66597_endpoint_disable,
2343 * periodic schedule support
2345 .get_frame_number = r8a66597_get_frame,
2350 .hub_status_data = r8a66597_hub_status_data,
2351 .hub_control = r8a66597_hub_control,
2352 .bus_suspend = r8a66597_bus_suspend,
2353 .bus_resume = r8a66597_bus_resume,
2356 #if defined(CONFIG_PM)
2357 static int r8a66597_suspend(struct device *dev)
2359 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2362 dbg("%s", __func__);
2364 disable_controller(r8a66597);
2366 for (port = 0; port < r8a66597->max_root_hub; port++) {
2367 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2369 rh->port = 0x00000000;
2375 static int r8a66597_resume(struct device *dev)
2377 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2378 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2380 dbg("%s", __func__);
2382 enable_controller(r8a66597);
2383 usb_root_hub_lost_power(hcd->self.root_hub);
2388 static const struct dev_pm_ops r8a66597_dev_pm_ops = {
2389 .suspend = r8a66597_suspend,
2390 .resume = r8a66597_resume,
2391 .poweroff = r8a66597_suspend,
2392 .restore = r8a66597_resume,
2395 #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops)
2396 #else /* if defined(CONFIG_PM) */
2397 #define R8A66597_DEV_PM_OPS NULL
2400 static int __init_or_module r8a66597_remove(struct platform_device *pdev)
2402 struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
2403 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2405 del_timer_sync(&r8a66597->rh_timer);
2406 usb_remove_hcd(hcd);
2407 iounmap((void *)r8a66597->reg);
2408 #ifdef CONFIG_HAVE_CLK
2409 if (r8a66597->pdata->on_chip)
2410 clk_put(r8a66597->clk);
2416 static int __devinit r8a66597_probe(struct platform_device *pdev)
2418 #ifdef CONFIG_HAVE_CLK
2421 struct resource *res = NULL, *ires;
2423 void __iomem *reg = NULL;
2424 struct usb_hcd *hcd = NULL;
2425 struct r8a66597 *r8a66597;
2428 unsigned long irq_trigger;
2430 if (pdev->dev.dma_mask) {
2432 dev_err(&pdev->dev, "dma not supported\n");
2436 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2439 dev_err(&pdev->dev, "platform_get_resource error.\n");
2443 ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2447 "platform_get_resource IORESOURCE_IRQ error.\n");
2452 irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
2454 reg = ioremap(res->start, resource_size(res));
2457 dev_err(&pdev->dev, "ioremap error.\n");
2461 if (pdev->dev.platform_data == NULL) {
2462 dev_err(&pdev->dev, "no platform data\n");
2467 /* initialize hcd */
2468 hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
2471 dev_err(&pdev->dev, "Failed to create hcd\n");
2474 r8a66597 = hcd_to_r8a66597(hcd);
2475 memset(r8a66597, 0, sizeof(struct r8a66597));
2476 dev_set_drvdata(&pdev->dev, r8a66597);
2477 r8a66597->pdata = pdev->dev.platform_data;
2478 r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
2480 if (r8a66597->pdata->on_chip) {
2481 #ifdef CONFIG_HAVE_CLK
2482 snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
2483 r8a66597->clk = clk_get(&pdev->dev, clk_name);
2484 if (IS_ERR(r8a66597->clk)) {
2485 dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
2487 ret = PTR_ERR(r8a66597->clk);
2491 r8a66597->max_root_hub = 1;
2493 r8a66597->max_root_hub = 2;
2495 spin_lock_init(&r8a66597->lock);
2496 init_timer(&r8a66597->rh_timer);
2497 r8a66597->rh_timer.function = r8a66597_timer;
2498 r8a66597->rh_timer.data = (unsigned long)r8a66597;
2499 r8a66597->reg = (unsigned long)reg;
2501 /* make sure no interrupts are pending */
2502 ret = r8a66597_clock_enable(r8a66597);
2505 disable_controller(r8a66597);
2507 for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
2508 INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
2509 init_timer(&r8a66597->td_timer[i]);
2510 r8a66597->td_timer[i].function = r8a66597_td_timer;
2511 r8a66597->td_timer[i].data = (unsigned long)r8a66597;
2512 setup_timer(&r8a66597->interval_timer[i],
2513 r8a66597_interval_timer,
2514 (unsigned long)r8a66597);
2516 INIT_LIST_HEAD(&r8a66597->child_device);
2518 hcd->rsrc_start = res->start;
2520 ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
2522 dev_err(&pdev->dev, "Failed to add hcd\n");
2529 #ifdef CONFIG_HAVE_CLK
2530 if (r8a66597->pdata->on_chip)
2531 clk_put(r8a66597->clk);
2543 static struct platform_driver r8a66597_driver = {
2544 .probe = r8a66597_probe,
2545 .remove = r8a66597_remove,
2547 .name = (char *) hcd_name,
2548 .owner = THIS_MODULE,
2549 .pm = R8A66597_DEV_PM_OPS,
2553 static int __init r8a66597_init(void)
2558 printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name,
2560 return platform_driver_register(&r8a66597_driver);
2562 module_init(r8a66597_init);
2564 static void __exit r8a66597_cleanup(void)
2566 platform_driver_unregister(&r8a66597_driver);
2568 module_exit(r8a66597_cleanup);