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>
38 #include <linux/irq.h>
40 #include "../core/hcd.h"
43 MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
44 MODULE_LICENSE("GPL");
45 MODULE_AUTHOR("Yoshihiro Shimoda");
46 MODULE_ALIAS("platform:r8a66597_hcd");
48 #define DRIVER_VERSION "2009-05-26"
50 static const char hcd_name[] = "r8a66597_hcd";
52 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
53 static int r8a66597_get_frame(struct usb_hcd *hcd);
55 /* this function must be called with interrupt disabled */
56 static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
61 tmp = r8a66597_read(r8a66597, INTENB0);
62 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
63 r8a66597_bset(r8a66597, 1 << pipenum, reg);
64 r8a66597_write(r8a66597, tmp, INTENB0);
67 /* this function must be called with interrupt disabled */
68 static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
73 tmp = r8a66597_read(r8a66597, INTENB0);
74 r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
75 r8a66597_bclr(r8a66597, 1 << pipenum, reg);
76 r8a66597_write(r8a66597, tmp, INTENB0);
79 static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
80 u16 usbspd, u8 upphub, u8 hubport, int port)
83 unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
85 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
86 r8a66597_write(r8a66597, val, devadd_reg);
89 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
94 if (r8a66597->pdata->on_chip) {
95 #ifdef CONFIG_HAVE_CLK
96 clk_enable(r8a66597->clk);
99 r8a66597_write(r8a66597, SCKE, SYSCFG0);
100 tmp = r8a66597_read(r8a66597, SYSCFG0);
102 printk(KERN_ERR "r8a66597: reg access fail.\n");
105 } while ((tmp & SCKE) != SCKE);
106 r8a66597_write(r8a66597, 0x04, 0x02);
109 r8a66597_write(r8a66597, USBE, SYSCFG0);
110 tmp = r8a66597_read(r8a66597, SYSCFG0);
112 printk(KERN_ERR "r8a66597: reg access fail.\n");
115 } while ((tmp & USBE) != USBE);
116 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
117 r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
121 r8a66597_bset(r8a66597, XCKE, SYSCFG0);
124 tmp = r8a66597_read(r8a66597, SYSCFG0);
126 printk(KERN_ERR "r8a66597: reg access fail.\n");
129 } while ((tmp & SCKE) != SCKE);
135 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
137 r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
140 if (r8a66597->pdata->on_chip) {
141 #ifdef CONFIG_HAVE_CLK
142 clk_disable(r8a66597->clk);
145 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
146 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
147 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
151 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
155 val = port ? DRPD : DCFM | DRPD;
156 r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
157 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
159 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
160 r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port));
161 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
164 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
168 r8a66597_write(r8a66597, 0, get_intenb_reg(port));
169 r8a66597_write(r8a66597, 0, get_intsts_reg(port));
171 r8a66597_port_power(r8a66597, port, 0);
174 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
176 } while (tmp == EDGESTS);
178 val = port ? DRPD : DCFM | DRPD;
179 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
180 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
183 static int enable_controller(struct r8a66597 *r8a66597)
186 u16 vif = r8a66597->pdata->vif ? LDRV : 0;
187 u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
188 u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
190 ret = r8a66597_clock_enable(r8a66597);
194 r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
195 r8a66597_bset(r8a66597, USBE, SYSCFG0);
197 r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
198 r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG);
199 r8a66597_bset(r8a66597, BRDY0, BRDYENB);
200 r8a66597_bset(r8a66597, BEMP0, BEMPENB);
202 r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
203 r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
204 r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
205 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
207 r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1);
209 for (port = 0; port < r8a66597->max_root_hub; port++)
210 r8a66597_enable_port(r8a66597, port);
215 static void disable_controller(struct r8a66597 *r8a66597)
219 r8a66597_write(r8a66597, 0, INTENB0);
220 r8a66597_write(r8a66597, 0, INTSTS0);
222 for (port = 0; port < r8a66597->max_root_hub; port++)
223 r8a66597_disable_port(r8a66597, port);
225 r8a66597_clock_disable(r8a66597);
228 static int get_parent_r8a66597_address(struct r8a66597 *r8a66597,
229 struct usb_device *udev)
231 struct r8a66597_device *dev;
233 if (udev->parent && udev->parent->devnum != 1)
236 dev = dev_get_drvdata(&udev->dev);
243 static int is_child_device(char *devpath)
245 return (devpath[2] ? 1 : 0);
248 static int is_hub_limit(char *devpath)
250 return ((strlen(devpath) >= 4) ? 1 : 0);
253 static void get_port_number(struct r8a66597 *r8a66597,
254 char *devpath, u16 *root_port, u16 *hub_port)
257 *root_port = (devpath[0] & 0x0F) - 1;
258 if (*root_port >= r8a66597->max_root_hub)
259 printk(KERN_ERR "r8a66597: Illegal root port number.\n");
262 *hub_port = devpath[2] & 0x0F;
265 static u16 get_r8a66597_usb_speed(enum usb_device_speed speed)
280 printk(KERN_ERR "r8a66597: unknown speed\n");
287 static void set_child_connect_map(struct r8a66597 *r8a66597, int address)
292 r8a66597->child_connect_map[idx] |= 1 << (address % 32);
295 static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
300 r8a66597->child_connect_map[idx] &= ~(1 << (address % 32));
303 static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
305 u16 pipenum = pipe->info.pipenum;
306 const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
307 const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
308 const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
310 if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */
311 dma_ch = R8A66597_PIPE_NO_DMA;
313 pipe->fifoaddr = fifoaddr[dma_ch];
314 pipe->fifosel = fifosel[dma_ch];
315 pipe->fifoctr = fifoctr[dma_ch];
318 pipe->pipectr = DCPCTR;
320 pipe->pipectr = get_pipectr_addr(pipenum);
322 if (check_bulk_or_isoc(pipenum)) {
323 pipe->pipetre = get_pipetre_addr(pipenum);
324 pipe->pipetrn = get_pipetrn_addr(pipenum);
331 static struct r8a66597_device *
332 get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb)
334 if (usb_pipedevice(urb->pipe) == 0)
335 return &r8a66597->device0;
337 return dev_get_drvdata(&urb->dev->dev);
340 static int make_r8a66597_device(struct r8a66597 *r8a66597,
341 struct urb *urb, u8 addr)
343 struct r8a66597_device *dev;
344 int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */
346 dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC);
350 dev_set_drvdata(&urb->dev->dev, dev);
351 dev->udev = urb->dev;
353 dev->usb_address = usb_address;
354 dev->state = USB_STATE_ADDRESS;
355 dev->ep_in_toggle = 0;
356 dev->ep_out_toggle = 0;
357 INIT_LIST_HEAD(&dev->device_list);
358 list_add_tail(&dev->device_list, &r8a66597->child_device);
360 get_port_number(r8a66597, urb->dev->devpath,
361 &dev->root_port, &dev->hub_port);
362 if (!is_child_device(urb->dev->devpath))
363 r8a66597->root_hub[dev->root_port].dev = dev;
365 set_devadd_reg(r8a66597, dev->address,
366 get_r8a66597_usb_speed(urb->dev->speed),
367 get_parent_r8a66597_address(r8a66597, urb->dev),
368 dev->hub_port, dev->root_port);
373 /* this function must be called with interrupt disabled */
374 static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb)
376 u8 addr; /* R8A66597's address */
377 struct r8a66597_device *dev;
379 if (is_hub_limit(urb->dev->devpath)) {
380 dev_err(&urb->dev->dev, "External hub limit reached.\n");
384 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
385 if (dev && dev->state >= USB_STATE_ADDRESS)
388 for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) {
389 if (r8a66597->address_map & (1 << addr))
392 dbg("alloc_address: r8a66597_addr=%d", addr);
393 r8a66597->address_map |= 1 << addr;
395 if (make_r8a66597_device(r8a66597, urb, addr) < 0)
401 dev_err(&urb->dev->dev,
402 "cannot communicate with a USB device more than 10.(%x)\n",
403 r8a66597->address_map);
408 /* this function must be called with interrupt disabled */
409 static void free_usb_address(struct r8a66597 *r8a66597,
410 struct r8a66597_device *dev)
417 dbg("free_addr: addr=%d", dev->address);
419 dev->state = USB_STATE_DEFAULT;
420 r8a66597->address_map &= ~(1 << dev->address);
422 dev_set_drvdata(&dev->udev->dev, NULL);
423 list_del(&dev->device_list);
426 for (port = 0; port < r8a66597->max_root_hub; port++) {
427 if (r8a66597->root_hub[port].dev == dev) {
428 r8a66597->root_hub[port].dev = NULL;
434 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
441 tmp = r8a66597_read(r8a66597, reg);
443 printk(KERN_ERR "r8a66597: register%lx, loop %x "
444 "is timeout\n", reg, loop);
448 } while ((tmp & mask) != loop);
451 /* this function must be called with interrupt disabled */
452 static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
456 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
457 if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */
458 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
459 r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
462 /* this function must be called with interrupt disabled */
463 static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
467 tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
468 if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */
469 r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr);
470 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
471 r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0);
474 /* this function must be called with interrupt disabled */
475 static void clear_all_buffer(struct r8a66597 *r8a66597,
476 struct r8a66597_pipe *pipe)
480 if (!pipe || pipe->info.pipenum == 0)
483 pipe_stop(r8a66597, pipe);
484 r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
485 tmp = r8a66597_read(r8a66597, pipe->pipectr);
486 tmp = r8a66597_read(r8a66597, pipe->pipectr);
487 tmp = r8a66597_read(r8a66597, pipe->pipectr);
488 r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
491 /* this function must be called with interrupt disabled */
492 static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597,
493 struct r8a66597_pipe *pipe, int toggle)
496 r8a66597_bset(r8a66597, SQSET, pipe->pipectr);
498 r8a66597_bset(r8a66597, SQCLR, pipe->pipectr);
501 static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
503 if (r8a66597->pdata->on_chip)
509 /* this function must be called with interrupt disabled */
510 static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum)
512 unsigned short mbw = mbw_value(r8a66597);
514 r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL);
515 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
518 /* this function must be called with interrupt disabled */
519 static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597,
520 struct r8a66597_pipe *pipe)
522 unsigned short mbw = mbw_value(r8a66597);
524 cfifo_change(r8a66597, 0);
525 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL);
526 r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL);
528 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE,
530 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum);
533 static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep)
535 struct r8a66597_pipe *pipe = hep->hcpriv;
537 if (usb_pipeendpoint(urb->pipe) == 0)
540 return pipe->info.pipenum;
543 static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb)
545 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
547 return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address;
550 static unsigned short *get_toggle_pointer(struct r8a66597_device *dev,
556 return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle;
559 /* this function must be called with interrupt disabled */
560 static void pipe_toggle_set(struct r8a66597 *r8a66597,
561 struct r8a66597_pipe *pipe,
562 struct urb *urb, int set)
564 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
565 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
566 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
572 *toggle |= 1 << endpoint;
574 *toggle &= ~(1 << endpoint);
577 /* this function must be called with interrupt disabled */
578 static void pipe_toggle_save(struct r8a66597 *r8a66597,
579 struct r8a66597_pipe *pipe,
582 if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON)
583 pipe_toggle_set(r8a66597, pipe, urb, 1);
585 pipe_toggle_set(r8a66597, pipe, urb, 0);
588 /* this function must be called with interrupt disabled */
589 static void pipe_toggle_restore(struct r8a66597 *r8a66597,
590 struct r8a66597_pipe *pipe,
593 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
594 unsigned char endpoint = usb_pipeendpoint(urb->pipe);
595 unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
600 r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint));
603 /* this function must be called with interrupt disabled */
604 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
605 struct r8a66597_pipe_info *info)
609 if (info->pipenum == 0)
612 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
613 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
614 r8a66597_write(r8a66597, info->pipenum, PIPESEL);
617 if (info->type == R8A66597_BULK && info->dir_in)
618 val |= R8A66597_DBLB | R8A66597_SHTNAK;
619 val |= info->type | info->epnum;
620 r8a66597_write(r8a66597, val, PIPECFG);
622 r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum),
624 r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket,
626 r8a66597_write(r8a66597, info->interval, PIPEPERI);
629 /* this function must be called with interrupt disabled */
630 static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td)
632 struct r8a66597_pipe_info *info;
633 struct urb *urb = td->urb;
635 if (td->pipenum > 0) {
636 info = &td->pipe->info;
637 cfifo_change(r8a66597, 0);
638 pipe_buffer_setting(r8a66597, info);
640 if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
641 usb_pipeout(urb->pipe)) &&
642 !usb_pipecontrol(urb->pipe)) {
643 r8a66597_pipe_toggle(r8a66597, td->pipe, 0);
644 pipe_toggle_set(r8a66597, td->pipe, urb, 0);
645 clear_all_buffer(r8a66597, td->pipe);
646 usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
647 usb_pipeout(urb->pipe), 1);
649 pipe_toggle_restore(r8a66597, td->pipe, urb);
653 /* this function must be called with interrupt disabled */
654 static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
655 struct usb_endpoint_descriptor *ep)
657 u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
659 memset(array, 0, sizeof(array));
660 switch (usb_endpoint_type(ep)) {
661 case USB_ENDPOINT_XFER_BULK:
662 if (usb_endpoint_dir_in(ep))
669 case USB_ENDPOINT_XFER_INT:
670 if (usb_endpoint_dir_in(ep)) {
677 case USB_ENDPOINT_XFER_ISOC:
678 if (usb_endpoint_dir_in(ep))
684 printk(KERN_ERR "r8a66597: Illegal type\n");
690 while (array[i] != 0) {
691 if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]])
699 static u16 get_r8a66597_type(__u8 type)
704 case USB_ENDPOINT_XFER_BULK:
705 r8a66597_type = R8A66597_BULK;
707 case USB_ENDPOINT_XFER_INT:
708 r8a66597_type = R8A66597_INT;
710 case USB_ENDPOINT_XFER_ISOC:
711 r8a66597_type = R8A66597_ISO;
714 printk(KERN_ERR "r8a66597: Illegal type\n");
715 r8a66597_type = 0x0000;
719 return r8a66597_type;
722 static u16 get_bufnum(u16 pipenum)
728 else if (check_bulk_or_isoc(pipenum))
729 bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2;
730 else if (check_interrupt(pipenum))
731 bufnum = 4 + (pipenum - 6);
733 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
738 static u16 get_buf_bsize(u16 pipenum)
744 else if (check_bulk_or_isoc(pipenum))
745 buf_bsize = R8A66597_BUF_BSIZE - 1;
746 else if (check_interrupt(pipenum))
749 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
754 /* this function must be called with interrupt disabled */
755 static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597,
756 struct r8a66597_device *dev,
757 struct r8a66597_pipe *pipe,
761 struct r8a66597_pipe_info *info = &pipe->info;
762 unsigned short mbw = mbw_value(r8a66597);
764 /* pipe dma is only for external controlles */
765 if (r8a66597->pdata->on_chip)
768 if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) {
769 for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) {
770 if ((r8a66597->dma_map & (1 << i)) != 0)
773 dev_info(&dev->udev->dev,
774 "address %d, EndpointAddress 0x%02x use "
775 "DMA FIFO\n", usb_pipedevice(urb->pipe),
777 USB_ENDPOINT_DIR_MASK + info->epnum
780 r8a66597->dma_map |= 1 << i;
781 dev->dma_map |= 1 << i;
782 set_pipe_reg_addr(pipe, i);
784 cfifo_change(r8a66597, 0);
785 r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum,
786 mbw | CURPIPE, pipe->fifosel);
788 r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE,
790 r8a66597_bset(r8a66597, BCLR, pipe->fifoctr);
796 /* this function must be called with interrupt disabled */
797 static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb,
798 struct usb_host_endpoint *hep,
799 struct r8a66597_pipe_info *info)
801 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
802 struct r8a66597_pipe *pipe = hep->hcpriv;
807 set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA);
808 r8a66597->pipe_cnt[pipe->info.pipenum]++;
809 dev->pipe_cnt[pipe->info.pipenum]++;
811 enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb);
814 /* this function must be called with interrupt disabled */
815 static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
817 struct r8a66597_td *td, *next;
819 struct list_head *list = &r8a66597->pipe_queue[pipenum];
821 if (list_empty(list))
824 list_for_each_entry_safe(td, next, list, queue) {
827 if (td->address != address)
831 list_del(&td->queue);
835 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597),
838 spin_unlock(&r8a66597->lock);
839 usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb,
841 spin_lock(&r8a66597->lock);
847 /* this function must be called with interrupt disabled */
848 static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
849 struct r8a66597_device *dev)
857 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
858 if (!dev->pipe_cnt[pipenum])
863 force_dequeue(r8a66597, 0, dev->address);
866 r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
867 dev->pipe_cnt[pipenum] = 0;
868 force_dequeue(r8a66597, pipenum, dev->address);
873 r8a66597->dma_map &= ~(dev->dma_map);
877 static u16 get_interval(struct urb *urb, __u8 interval)
882 if (urb->dev->speed == USB_SPEED_HIGH) {
886 time = interval ? interval - 1 : 0;
888 if (interval > 128) {
891 /* calculate the nearest value for PIPEPERI */
892 for (i = 0; i < 7; i++) {
893 if ((1 << i) < interval &&
894 (1 << (i + 1) > interval))
903 static unsigned long get_timer_interval(struct urb *urb, __u8 interval)
906 unsigned long time = 1;
908 if (usb_pipeisoc(urb->pipe))
911 if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) {
912 for (i = 0; i < (interval - 1); i++)
914 time = time * 125 / 1000; /* uSOF -> msec */
922 /* this function must be called with interrupt disabled */
923 static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
924 struct usb_host_endpoint *hep,
925 struct usb_endpoint_descriptor *ep)
927 struct r8a66597_pipe_info info;
929 info.pipenum = get_empty_pipenum(r8a66597, ep);
930 info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
931 info.epnum = usb_endpoint_num(ep);
932 info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
933 info.type = get_r8a66597_type(usb_endpoint_type(ep));
934 info.bufnum = get_bufnum(info.pipenum);
935 info.buf_bsize = get_buf_bsize(info.pipenum);
936 if (info.type == R8A66597_BULK) {
938 info.timer_interval = 0;
940 info.interval = get_interval(urb, ep->bInterval);
941 info.timer_interval = get_timer_interval(urb, ep->bInterval);
943 if (usb_endpoint_dir_in(ep))
948 enable_r8a66597_pipe(r8a66597, urb, hep, &info);
951 static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
953 struct r8a66597_device *dev;
955 dev = get_urb_to_r8a66597_dev(r8a66597, urb);
956 dev->state = USB_STATE_CONFIGURED;
959 static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
962 if (pipenum == 0 && usb_pipeout(urb->pipe))
963 enable_irq_empty(r8a66597, pipenum);
965 enable_irq_ready(r8a66597, pipenum);
967 if (!usb_pipeisoc(urb->pipe))
968 enable_irq_nrdy(r8a66597, pipenum);
971 static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
973 disable_irq_ready(r8a66597, pipenum);
974 disable_irq_nrdy(r8a66597, pipenum);
977 static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597)
979 mod_timer(&r8a66597->rh_timer,
980 jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME));
983 static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port,
986 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
988 rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
989 rh->scount = R8A66597_MAX_SAMPLING;
991 rh->port |= 1 << USB_PORT_FEAT_CONNECTION;
993 rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION);
994 rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION;
996 r8a66597_root_hub_start_polling(r8a66597);
999 /* this function must be called with interrupt disabled */
1000 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port,
1003 if (syssts == SE0) {
1004 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1005 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1009 if (syssts == FS_JSTS)
1010 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
1011 else if (syssts == LS_JSTS)
1012 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
1014 r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port));
1015 r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
1017 if (r8a66597->bus_suspended)
1018 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1021 /* this function must be called with interrupt disabled */
1022 static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
1024 u16 speed = get_rh_usb_speed(r8a66597, port);
1025 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1027 if (speed == HSMODE)
1028 rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
1029 else if (speed == LSMODE)
1030 rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
1032 rh->port &= ~(1 << USB_PORT_FEAT_RESET);
1033 rh->port |= 1 << USB_PORT_FEAT_ENABLE;
1036 /* this function must be called with interrupt disabled */
1037 static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
1039 struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
1041 disable_r8a66597_pipe_all(r8a66597, dev);
1042 free_usb_address(r8a66597, dev);
1044 start_root_hub_sampling(r8a66597, port, 0);
1047 /* this function must be called with interrupt disabled */
1048 static void prepare_setup_packet(struct r8a66597 *r8a66597,
1049 struct r8a66597_td *td)
1052 __le16 *p = (__le16 *)td->urb->setup_packet;
1053 unsigned long setup_addr = USBREQ;
1055 r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
1057 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
1059 for (i = 0; i < 4; i++) {
1060 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
1063 r8a66597_write(r8a66597, SUREQ, DCPCTR);
1066 /* this function must be called with interrupt disabled */
1067 static void prepare_packet_read(struct r8a66597 *r8a66597,
1068 struct r8a66597_td *td)
1070 struct urb *urb = td->urb;
1072 if (usb_pipecontrol(urb->pipe)) {
1073 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1074 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1075 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1076 if (urb->actual_length == 0) {
1077 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1078 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1080 pipe_irq_disable(r8a66597, td->pipenum);
1081 pipe_start(r8a66597, td->pipe);
1082 pipe_irq_enable(r8a66597, urb, td->pipenum);
1084 if (urb->actual_length == 0) {
1085 pipe_irq_disable(r8a66597, td->pipenum);
1086 pipe_setting(r8a66597, td);
1087 pipe_stop(r8a66597, td->pipe);
1088 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1090 if (td->pipe->pipetre) {
1091 r8a66597_write(r8a66597, TRCLR,
1093 r8a66597_write(r8a66597,
1095 (urb->transfer_buffer_length,
1098 r8a66597_bset(r8a66597, TRENB,
1102 pipe_start(r8a66597, td->pipe);
1103 pipe_irq_enable(r8a66597, urb, td->pipenum);
1108 /* this function must be called with interrupt disabled */
1109 static void prepare_packet_write(struct r8a66597 *r8a66597,
1110 struct r8a66597_td *td)
1113 struct urb *urb = td->urb;
1115 if (usb_pipecontrol(urb->pipe)) {
1116 pipe_stop(r8a66597, td->pipe);
1117 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1118 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1119 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1120 if (urb->actual_length == 0) {
1121 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1122 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1125 if (urb->actual_length == 0)
1126 pipe_setting(r8a66597, td);
1127 if (td->pipe->pipetre)
1128 r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
1130 r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1132 fifo_change_from_pipe(r8a66597, td->pipe);
1133 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1134 if (unlikely((tmp & FRDY) == 0))
1135 pipe_irq_enable(r8a66597, urb, td->pipenum);
1137 packet_write(r8a66597, td->pipenum);
1138 pipe_start(r8a66597, td->pipe);
1141 /* this function must be called with interrupt disabled */
1142 static void prepare_status_packet(struct r8a66597 *r8a66597,
1143 struct r8a66597_td *td)
1145 struct urb *urb = td->urb;
1147 r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1148 pipe_stop(r8a66597, td->pipe);
1150 if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
1151 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1152 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1153 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1154 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
1155 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
1156 enable_irq_empty(r8a66597, 0);
1158 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1159 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1160 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1161 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1162 enable_irq_ready(r8a66597, 0);
1164 enable_irq_nrdy(r8a66597, 0);
1165 pipe_start(r8a66597, td->pipe);
1168 static int is_set_address(unsigned char *setup_packet)
1170 if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) &&
1171 setup_packet[1] == USB_REQ_SET_ADDRESS)
1177 /* this function must be called with interrupt disabled */
1178 static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1184 if (is_set_address(td->urb->setup_packet)) {
1185 td->set_address = 1;
1186 td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
1188 if (td->urb->setup_packet[2] == 0)
1191 prepare_setup_packet(r8a66597, td);
1194 prepare_packet_read(r8a66597, td);
1197 prepare_packet_write(r8a66597, td);
1200 prepare_status_packet(r8a66597, td);
1203 printk(KERN_ERR "r8a66597: invalid type.\n");
1210 static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
1212 if (usb_pipeisoc(urb->pipe)) {
1213 if (urb->number_of_packets == td->iso_cnt)
1217 /* control or bulk or interrupt */
1218 if ((urb->transfer_buffer_length <= urb->actual_length) ||
1219 (td->short_packet) || (td->zero_packet))
1225 /* this function must be called with interrupt disabled */
1226 static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1232 if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
1233 !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
1234 r8a66597->timeout_map |= 1 << td->pipenum;
1235 switch (usb_pipetype(td->urb->pipe)) {
1236 case PIPE_INTERRUPT:
1237 case PIPE_ISOCHRONOUS:
1245 mod_timer(&r8a66597->td_timer[td->pipenum],
1246 jiffies + msecs_to_jiffies(time));
1250 /* this function must be called with interrupt disabled */
1251 static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
1252 u16 pipenum, struct urb *urb, int status)
1253 __releases(r8a66597->lock) __acquires(r8a66597->lock)
1256 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
1258 r8a66597->timeout_map &= ~(1 << pipenum);
1261 if (td->set_address && (status != 0 || urb->unlinked))
1262 r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
1264 pipe_toggle_save(r8a66597, td->pipe, urb);
1265 list_del(&td->queue);
1269 if (!list_empty(&r8a66597->pipe_queue[pipenum]))
1273 if (usb_pipeisoc(urb->pipe))
1274 urb->start_frame = r8a66597_get_frame(hcd);
1276 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
1277 spin_unlock(&r8a66597->lock);
1278 usb_hcd_giveback_urb(hcd, urb, status);
1279 spin_lock(&r8a66597->lock);
1283 td = r8a66597_get_td(r8a66597, pipenum);
1287 start_transfer(r8a66597, td);
1288 set_td_timer(r8a66597, td);
1292 static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
1295 int rcv_len, bufsize, urb_len, size;
1297 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1306 fifo_change_from_pipe(r8a66597, td->pipe);
1307 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1308 if (unlikely((tmp & FRDY) == 0)) {
1309 pipe_stop(r8a66597, td->pipe);
1310 pipe_irq_disable(r8a66597, pipenum);
1311 printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum);
1312 finish_request(r8a66597, td, pipenum, td->urb, -EPIPE);
1316 /* prepare parameters */
1317 rcv_len = tmp & DTLN;
1318 if (usb_pipeisoc(urb->pipe)) {
1319 buf = (u16 *)(urb->transfer_buffer +
1320 urb->iso_frame_desc[td->iso_cnt].offset);
1321 urb_len = urb->iso_frame_desc[td->iso_cnt].length;
1323 buf = (void *)urb->transfer_buffer + urb->actual_length;
1324 urb_len = urb->transfer_buffer_length - urb->actual_length;
1326 bufsize = min(urb_len, (int) td->maxpacket);
1327 if (rcv_len <= bufsize) {
1331 status = -EOVERFLOW;
1335 /* update parameters */
1336 urb->actual_length += size;
1338 td->zero_packet = 1;
1339 if (rcv_len < bufsize) {
1340 td->short_packet = 1;
1342 if (usb_pipeisoc(urb->pipe)) {
1343 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1344 urb->iso_frame_desc[td->iso_cnt].status = status;
1349 /* check transfer finish */
1350 if (finish || check_transfer_finish(td, urb)) {
1351 pipe_stop(r8a66597, td->pipe);
1352 pipe_irq_disable(r8a66597, pipenum);
1357 if (urb->transfer_buffer) {
1359 r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
1361 r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
1365 if (finish && pipenum != 0)
1366 finish_request(r8a66597, td, pipenum, urb, status);
1369 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
1374 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1381 fifo_change_from_pipe(r8a66597, td->pipe);
1382 tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1383 if (unlikely((tmp & FRDY) == 0)) {
1384 pipe_stop(r8a66597, td->pipe);
1385 pipe_irq_disable(r8a66597, pipenum);
1386 printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum);
1387 finish_request(r8a66597, td, pipenum, urb, -EPIPE);
1391 /* prepare parameters */
1392 bufsize = td->maxpacket;
1393 if (usb_pipeisoc(urb->pipe)) {
1394 buf = (u16 *)(urb->transfer_buffer +
1395 urb->iso_frame_desc[td->iso_cnt].offset);
1397 (int)urb->iso_frame_desc[td->iso_cnt].length);
1399 buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
1400 size = min_t(u32, bufsize,
1401 urb->transfer_buffer_length - urb->actual_length);
1406 r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
1407 if (urb->transfer_buffer) {
1408 r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
1409 if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
1410 r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
1413 /* update parameters */
1414 urb->actual_length += size;
1415 if (usb_pipeisoc(urb->pipe)) {
1416 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1417 urb->iso_frame_desc[td->iso_cnt].status = 0;
1421 /* check transfer finish */
1422 if (check_transfer_finish(td, urb)) {
1423 disable_irq_ready(r8a66597, pipenum);
1424 enable_irq_empty(r8a66597, pipenum);
1425 if (!usb_pipeisoc(urb->pipe))
1426 enable_irq_nrdy(r8a66597, pipenum);
1428 pipe_irq_enable(r8a66597, urb, pipenum);
1432 static void check_next_phase(struct r8a66597 *r8a66597, int status)
1434 struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
1445 if (check_transfer_finish(td, urb))
1446 td->type = USB_PID_ACK;
1449 if (urb->transfer_buffer_length == urb->actual_length)
1450 td->type = USB_PID_ACK;
1451 else if (usb_pipeout(urb->pipe))
1452 td->type = USB_PID_OUT;
1454 td->type = USB_PID_IN;
1461 if (finish || status != 0 || urb->unlinked)
1462 finish_request(r8a66597, td, 0, urb, status);
1464 start_transfer(r8a66597, td);
1467 static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
1469 struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1472 u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
1482 static void irq_pipe_ready(struct r8a66597 *r8a66597)
1487 struct r8a66597_td *td;
1489 mask = r8a66597_read(r8a66597, BRDYSTS)
1490 & r8a66597_read(r8a66597, BRDYENB);
1491 r8a66597_write(r8a66597, ~mask, BRDYSTS);
1493 td = r8a66597_get_td(r8a66597, 0);
1494 if (td && td->type == USB_PID_IN)
1495 packet_read(r8a66597, 0);
1497 pipe_irq_disable(r8a66597, 0);
1498 check_next_phase(r8a66597, 0);
1501 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1502 check = 1 << pipenum;
1504 td = r8a66597_get_td(r8a66597, pipenum);
1508 if (td->type == USB_PID_IN)
1509 packet_read(r8a66597, pipenum);
1510 else if (td->type == USB_PID_OUT)
1511 packet_write(r8a66597, pipenum);
1516 static void irq_pipe_empty(struct r8a66597 *r8a66597)
1522 struct r8a66597_td *td;
1524 mask = r8a66597_read(r8a66597, BEMPSTS)
1525 & r8a66597_read(r8a66597, BEMPENB);
1526 r8a66597_write(r8a66597, ~mask, BEMPSTS);
1528 cfifo_change(r8a66597, 0);
1529 td = r8a66597_get_td(r8a66597, 0);
1530 if (td && td->type != USB_PID_OUT)
1531 disable_irq_empty(r8a66597, 0);
1532 check_next_phase(r8a66597, 0);
1535 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1536 check = 1 << pipenum;
1538 struct r8a66597_td *td;
1539 td = r8a66597_get_td(r8a66597, pipenum);
1543 tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
1544 if ((tmp & INBUFM) == 0) {
1545 disable_irq_empty(r8a66597, pipenum);
1546 pipe_irq_disable(r8a66597, pipenum);
1547 finish_request(r8a66597, td, pipenum, td->urb,
1554 static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
1561 mask = r8a66597_read(r8a66597, NRDYSTS)
1562 & r8a66597_read(r8a66597, NRDYENB);
1563 r8a66597_write(r8a66597, ~mask, NRDYSTS);
1565 cfifo_change(r8a66597, 0);
1566 status = get_urb_error(r8a66597, 0);
1567 pipe_irq_disable(r8a66597, 0);
1568 check_next_phase(r8a66597, status);
1571 for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1572 check = 1 << pipenum;
1574 struct r8a66597_td *td;
1575 td = r8a66597_get_td(r8a66597, pipenum);
1579 status = get_urb_error(r8a66597, pipenum);
1580 pipe_irq_disable(r8a66597, pipenum);
1581 pipe_stop(r8a66597, td->pipe);
1582 finish_request(r8a66597, td, pipenum, td->urb, status);
1587 static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
1589 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1590 u16 intsts0, intsts1, intsts2;
1591 u16 intenb0, intenb1, intenb2;
1592 u16 mask0, mask1, mask2;
1595 spin_lock(&r8a66597->lock);
1597 intsts0 = r8a66597_read(r8a66597, INTSTS0);
1598 intsts1 = r8a66597_read(r8a66597, INTSTS1);
1599 intsts2 = r8a66597_read(r8a66597, INTSTS2);
1600 intenb0 = r8a66597_read(r8a66597, INTENB0);
1601 intenb1 = r8a66597_read(r8a66597, INTENB1);
1602 intenb2 = r8a66597_read(r8a66597, INTENB2);
1604 mask2 = intsts2 & intenb2;
1605 mask1 = intsts1 & intenb1;
1606 mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
1608 if (mask2 & ATTCH) {
1609 r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
1610 r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
1612 /* start usb bus sampling */
1613 start_root_hub_sampling(r8a66597, 1, 1);
1616 r8a66597_write(r8a66597, ~DTCH, INTSTS2);
1617 r8a66597_bclr(r8a66597, DTCHE, INTENB2);
1618 r8a66597_usb_disconnect(r8a66597, 1);
1621 r8a66597_write(r8a66597, ~BCHG, INTSTS2);
1622 r8a66597_bclr(r8a66597, BCHGE, INTENB2);
1623 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1628 if (mask1 & ATTCH) {
1629 r8a66597_write(r8a66597, ~ATTCH, INTSTS1);
1630 r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
1632 /* start usb bus sampling */
1633 start_root_hub_sampling(r8a66597, 0, 1);
1636 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
1637 r8a66597_bclr(r8a66597, DTCHE, INTENB1);
1638 r8a66597_usb_disconnect(r8a66597, 0);
1641 r8a66597_write(r8a66597, ~BCHG, INTSTS1);
1642 r8a66597_bclr(r8a66597, BCHGE, INTENB1);
1643 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1647 r8a66597_write(r8a66597, ~SIGN, INTSTS1);
1648 status = get_urb_error(r8a66597, 0);
1649 check_next_phase(r8a66597, status);
1652 r8a66597_write(r8a66597, ~SACK, INTSTS1);
1653 check_next_phase(r8a66597, 0);
1658 irq_pipe_ready(r8a66597);
1660 irq_pipe_empty(r8a66597);
1662 irq_pipe_nrdy(r8a66597);
1665 spin_unlock(&r8a66597->lock);
1669 /* this function must be called with interrupt disabled */
1670 static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
1673 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1675 if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
1676 unsigned long dvstctr_reg = get_dvstctr_reg(port);
1678 tmp = r8a66597_read(r8a66597, dvstctr_reg);
1679 if ((tmp & USBRST) == USBRST) {
1680 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
1682 r8a66597_root_hub_start_polling(r8a66597);
1684 r8a66597_usb_connect(r8a66597, port);
1687 if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) {
1688 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1689 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1692 if (rh->scount > 0) {
1693 tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1694 if (tmp == rh->old_syssts) {
1696 if (rh->scount == 0)
1697 r8a66597_check_syssts(r8a66597, port, tmp);
1699 r8a66597_root_hub_start_polling(r8a66597);
1701 rh->scount = R8A66597_MAX_SAMPLING;
1702 rh->old_syssts = tmp;
1703 r8a66597_root_hub_start_polling(r8a66597);
1708 static void r8a66597_interval_timer(unsigned long _r8a66597)
1710 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1711 unsigned long flags;
1713 struct r8a66597_td *td;
1715 spin_lock_irqsave(&r8a66597->lock, flags);
1717 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1718 if (!(r8a66597->interval_map & (1 << pipenum)))
1720 if (timer_pending(&r8a66597->interval_timer[pipenum]))
1723 td = r8a66597_get_td(r8a66597, pipenum);
1725 start_transfer(r8a66597, td);
1728 spin_unlock_irqrestore(&r8a66597->lock, flags);
1731 static void r8a66597_td_timer(unsigned long _r8a66597)
1733 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1734 unsigned long flags;
1736 struct r8a66597_td *td, *new_td = NULL;
1737 struct r8a66597_pipe *pipe;
1739 spin_lock_irqsave(&r8a66597->lock, flags);
1740 for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1741 if (!(r8a66597->timeout_map & (1 << pipenum)))
1743 if (timer_pending(&r8a66597->td_timer[pipenum]))
1746 td = r8a66597_get_td(r8a66597, pipenum);
1748 r8a66597->timeout_map &= ~(1 << pipenum);
1752 if (td->urb->actual_length) {
1753 set_td_timer(r8a66597, td);
1758 pipe_stop(r8a66597, pipe);
1762 list_move_tail(&new_td->queue,
1763 &r8a66597->pipe_queue[pipenum]);
1764 new_td = r8a66597_get_td(r8a66597, pipenum);
1769 } while (td != new_td && td->address == new_td->address);
1771 start_transfer(r8a66597, new_td);
1774 r8a66597->timeout_map &= ~(1 << pipenum);
1776 set_td_timer(r8a66597, new_td);
1779 spin_unlock_irqrestore(&r8a66597->lock, flags);
1782 static void r8a66597_timer(unsigned long _r8a66597)
1784 struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1785 unsigned long flags;
1788 spin_lock_irqsave(&r8a66597->lock, flags);
1790 for (port = 0; port < r8a66597->max_root_hub; port++)
1791 r8a66597_root_hub_control(r8a66597, port);
1793 spin_unlock_irqrestore(&r8a66597->lock, flags);
1796 static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
1798 struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
1800 if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
1801 (urb->dev->state == USB_STATE_CONFIGURED))
1807 static int r8a66597_start(struct usb_hcd *hcd)
1809 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1811 hcd->state = HC_STATE_RUNNING;
1812 return enable_controller(r8a66597);
1815 static void r8a66597_stop(struct usb_hcd *hcd)
1817 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1819 disable_controller(r8a66597);
1822 static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
1824 unsigned int usb_address = usb_pipedevice(urb->pipe);
1825 u16 root_port, hub_port;
1827 if (usb_address == 0) {
1828 get_port_number(r8a66597, urb->dev->devpath,
1829 &root_port, &hub_port);
1830 set_devadd_reg(r8a66597, 0,
1831 get_r8a66597_usb_speed(urb->dev->speed),
1832 get_parent_r8a66597_address(r8a66597, urb->dev),
1833 hub_port, root_port);
1837 static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
1839 struct usb_host_endpoint *hep)
1841 struct r8a66597_td *td;
1844 td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC);
1848 pipenum = r8a66597_get_pipenum(urb, hep);
1849 td->pipenum = pipenum;
1850 td->pipe = hep->hcpriv;
1852 td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
1853 td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
1854 !usb_pipein(urb->pipe));
1855 if (usb_pipecontrol(urb->pipe))
1856 td->type = USB_PID_SETUP;
1857 else if (usb_pipein(urb->pipe))
1858 td->type = USB_PID_IN;
1860 td->type = USB_PID_OUT;
1861 INIT_LIST_HEAD(&td->queue);
1866 static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
1870 struct usb_host_endpoint *hep = urb->ep;
1871 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1872 struct r8a66597_td *td = NULL;
1873 int ret, request = 0;
1874 unsigned long flags;
1876 spin_lock_irqsave(&r8a66597->lock, flags);
1877 if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
1879 goto error_not_linked;
1882 ret = usb_hcd_link_urb_to_ep(hcd, urb);
1884 goto error_not_linked;
1887 hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe),
1893 set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
1894 if (usb_pipeendpoint(urb->pipe))
1895 init_pipe_info(r8a66597, urb, hep, &hep->desc);
1898 if (unlikely(check_pipe_config(r8a66597, urb)))
1899 init_pipe_config(r8a66597, urb);
1901 set_address_zero(r8a66597, urb);
1902 td = r8a66597_make_td(r8a66597, urb, hep);
1907 if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
1909 list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
1913 if (td->pipe->info.timer_interval) {
1914 r8a66597->interval_map |= 1 << td->pipenum;
1915 mod_timer(&r8a66597->interval_timer[td->pipenum],
1916 jiffies + msecs_to_jiffies(
1917 td->pipe->info.timer_interval));
1919 ret = start_transfer(r8a66597, td);
1921 list_del(&td->queue);
1926 set_td_timer(r8a66597, td);
1930 usb_hcd_unlink_urb_from_ep(hcd, urb);
1932 spin_unlock_irqrestore(&r8a66597->lock, flags);
1936 static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1939 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1940 struct r8a66597_td *td;
1941 unsigned long flags;
1944 spin_lock_irqsave(&r8a66597->lock, flags);
1945 rc = usb_hcd_check_unlink_urb(hcd, urb, status);
1951 pipe_stop(r8a66597, td->pipe);
1952 pipe_irq_disable(r8a66597, td->pipenum);
1953 disable_irq_empty(r8a66597, td->pipenum);
1954 finish_request(r8a66597, td, td->pipenum, urb, status);
1957 spin_unlock_irqrestore(&r8a66597->lock, flags);
1961 static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
1962 struct usb_host_endpoint *hep)
1964 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1965 struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
1966 struct r8a66597_td *td;
1967 struct urb *urb = NULL;
1969 unsigned long flags;
1973 pipenum = pipe->info.pipenum;
1981 spin_lock_irqsave(&r8a66597->lock, flags);
1982 pipe_stop(r8a66597, pipe);
1983 pipe_irq_disable(r8a66597, pipenum);
1984 disable_irq_empty(r8a66597, pipenum);
1985 td = r8a66597_get_td(r8a66597, pipenum);
1988 finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN);
1991 spin_unlock_irqrestore(&r8a66597->lock, flags);
1994 static int r8a66597_get_frame(struct usb_hcd *hcd)
1996 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1997 return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
2000 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
2004 if (udev->state == USB_STATE_CONFIGURED &&
2005 udev->parent && udev->parent->devnum > 1 &&
2006 udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
2007 map[udev->devnum/32] |= (1 << (udev->devnum % 32));
2009 for (chix = 0; chix < udev->maxchild; chix++) {
2010 struct usb_device *childdev = udev->children[chix];
2013 collect_usb_address_map(childdev, map);
2017 /* this function must be called with interrupt disabled */
2018 static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
2021 struct r8a66597_device *dev;
2022 struct list_head *list = &r8a66597->child_device;
2024 list_for_each_entry(dev, list, device_list) {
2027 if (dev->usb_address != addr)
2033 printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr);
2037 static void update_usb_address_map(struct r8a66597 *r8a66597,
2038 struct usb_device *root_hub,
2043 unsigned long flags;
2045 for (i = 0; i < 4; i++) {
2046 diff = r8a66597->child_connect_map[i] ^ map[i];
2050 for (j = 0; j < 32; j++) {
2051 if (!(diff & (1 << j)))
2055 if (map[i] & (1 << j))
2056 set_child_connect_map(r8a66597, addr);
2058 struct r8a66597_device *dev;
2060 spin_lock_irqsave(&r8a66597->lock, flags);
2061 dev = get_r8a66597_device(r8a66597, addr);
2062 disable_r8a66597_pipe_all(r8a66597, dev);
2063 free_usb_address(r8a66597, dev);
2064 put_child_connect_map(r8a66597, addr);
2065 spin_unlock_irqrestore(&r8a66597->lock, flags);
2071 static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
2072 struct usb_hcd *hcd)
2074 struct usb_bus *bus;
2075 unsigned long now_map[4];
2077 memset(now_map, 0, sizeof(now_map));
2079 list_for_each_entry(bus, &usb_bus_list, bus_list) {
2083 if (bus->busnum != hcd->self.busnum)
2086 collect_usb_address_map(bus->root_hub, now_map);
2087 update_usb_address_map(r8a66597, bus->root_hub, now_map);
2091 static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
2093 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2094 unsigned long flags;
2097 r8a66597_check_detect_child(r8a66597, hcd);
2099 spin_lock_irqsave(&r8a66597->lock, flags);
2101 *buf = 0; /* initialize (no change) */
2103 for (i = 0; i < r8a66597->max_root_hub; i++) {
2104 if (r8a66597->root_hub[i].port & 0xffff0000)
2105 *buf |= 1 << (i + 1);
2108 spin_unlock_irqrestore(&r8a66597->lock, flags);
2113 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
2114 struct usb_hub_descriptor *desc)
2116 desc->bDescriptorType = 0x29;
2117 desc->bHubContrCurrent = 0;
2118 desc->bNbrPorts = r8a66597->max_root_hub;
2119 desc->bDescLength = 9;
2120 desc->bPwrOn2PwrGood = 0;
2121 desc->wHubCharacteristics = cpu_to_le16(0x0011);
2122 desc->bitmap[0] = ((1 << r8a66597->max_root_hub) - 1) << 1;
2123 desc->bitmap[1] = ~0;
2126 static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2127 u16 wIndex, char *buf, u16 wLength)
2129 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2131 int port = (wIndex & 0x00FF) - 1;
2132 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2133 unsigned long flags;
2137 spin_lock_irqsave(&r8a66597->lock, flags);
2139 case ClearHubFeature:
2142 case C_HUB_OVER_CURRENT:
2143 case C_HUB_LOCAL_POWER:
2149 case ClearPortFeature:
2150 if (wIndex > r8a66597->max_root_hub)
2156 case USB_PORT_FEAT_ENABLE:
2157 rh->port &= ~(1 << USB_PORT_FEAT_POWER);
2159 case USB_PORT_FEAT_SUSPEND:
2161 case USB_PORT_FEAT_POWER:
2162 r8a66597_port_power(r8a66597, port, 0);
2164 case USB_PORT_FEAT_C_ENABLE:
2165 case USB_PORT_FEAT_C_SUSPEND:
2166 case USB_PORT_FEAT_C_CONNECTION:
2167 case USB_PORT_FEAT_C_OVER_CURRENT:
2168 case USB_PORT_FEAT_C_RESET:
2173 rh->port &= ~(1 << wValue);
2175 case GetHubDescriptor:
2176 r8a66597_hub_descriptor(r8a66597,
2177 (struct usb_hub_descriptor *)buf);
2183 if (wIndex > r8a66597->max_root_hub)
2185 *(__le32 *)buf = cpu_to_le32(rh->port);
2187 case SetPortFeature:
2188 if (wIndex > r8a66597->max_root_hub)
2194 case USB_PORT_FEAT_SUSPEND:
2196 case USB_PORT_FEAT_POWER:
2197 r8a66597_port_power(r8a66597, port, 1);
2198 rh->port |= (1 << USB_PORT_FEAT_POWER);
2200 case USB_PORT_FEAT_RESET: {
2201 struct r8a66597_device *dev = rh->dev;
2203 rh->port |= (1 << USB_PORT_FEAT_RESET);
2205 disable_r8a66597_pipe_all(r8a66597, dev);
2206 free_usb_address(r8a66597, dev);
2208 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
2209 get_dvstctr_reg(port));
2210 mod_timer(&r8a66597->rh_timer,
2211 jiffies + msecs_to_jiffies(50));
2217 rh->port |= 1 << wValue;
2225 spin_unlock_irqrestore(&r8a66597->lock, flags);
2229 #if defined(CONFIG_PM)
2230 static int r8a66597_bus_suspend(struct usb_hcd *hcd)
2232 struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2235 dbg("%s", __func__);
2237 for (port = 0; port < r8a66597->max_root_hub; port++) {
2238 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2239 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2241 if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE)))
2244 dbg("suspend port = %d", port);
2245 r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */
2246 rh->port |= 1 << USB_PORT_FEAT_SUSPEND;
2248 if (rh->dev->udev->do_remote_wakeup) {
2249 msleep(3); /* waiting last SOF */
2250 r8a66597_bset(r8a66597, RWUPE, dvstctr_reg);
2251 r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port));
2252 r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port));
2256 r8a66597->bus_suspended = 1;
2261 static int r8a66597_bus_resume(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_SUSPEND)))
2275 dbg("resume port = %d", port);
2276 rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND);
2277 rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND;
2278 r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
2280 r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
2287 #define r8a66597_bus_suspend NULL
2288 #define r8a66597_bus_resume NULL
2291 static struct hc_driver r8a66597_hc_driver = {
2292 .description = hcd_name,
2293 .hcd_priv_size = sizeof(struct r8a66597),
2294 .irq = r8a66597_irq,
2297 * generic hardware linkage
2301 .start = r8a66597_start,
2302 .stop = r8a66597_stop,
2305 * managing i/o requests and associated device resources
2307 .urb_enqueue = r8a66597_urb_enqueue,
2308 .urb_dequeue = r8a66597_urb_dequeue,
2309 .endpoint_disable = r8a66597_endpoint_disable,
2312 * periodic schedule support
2314 .get_frame_number = r8a66597_get_frame,
2319 .hub_status_data = r8a66597_hub_status_data,
2320 .hub_control = r8a66597_hub_control,
2321 .bus_suspend = r8a66597_bus_suspend,
2322 .bus_resume = r8a66597_bus_resume,
2325 #if defined(CONFIG_PM)
2326 static int r8a66597_suspend(struct device *dev)
2328 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2331 dbg("%s", __func__);
2333 disable_controller(r8a66597);
2335 for (port = 0; port < r8a66597->max_root_hub; port++) {
2336 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2338 rh->port = 0x00000000;
2344 static int r8a66597_resume(struct device *dev)
2346 struct r8a66597 *r8a66597 = dev_get_drvdata(dev);
2347 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2349 dbg("%s", __func__);
2351 enable_controller(r8a66597);
2352 usb_root_hub_lost_power(hcd->self.root_hub);
2357 static struct dev_pm_ops r8a66597_dev_pm_ops = {
2358 .suspend = r8a66597_suspend,
2359 .resume = r8a66597_resume,
2360 .poweroff = r8a66597_suspend,
2361 .restore = r8a66597_resume,
2364 #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops)
2365 #else /* if defined(CONFIG_PM) */
2366 #define R8A66597_DEV_PM_OPS NULL
2369 static int __init_or_module r8a66597_remove(struct platform_device *pdev)
2371 struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
2372 struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
2374 del_timer_sync(&r8a66597->rh_timer);
2375 usb_remove_hcd(hcd);
2376 iounmap((void *)r8a66597->reg);
2377 #ifdef CONFIG_HAVE_CLK
2378 if (r8a66597->pdata->on_chip)
2379 clk_put(r8a66597->clk);
2385 static int __devinit r8a66597_probe(struct platform_device *pdev)
2387 #ifdef CONFIG_HAVE_CLK
2390 struct resource *res = NULL, *ires;
2392 void __iomem *reg = NULL;
2393 struct usb_hcd *hcd = NULL;
2394 struct r8a66597 *r8a66597;
2397 unsigned long irq_trigger;
2399 if (pdev->dev.dma_mask) {
2401 dev_err(&pdev->dev, "dma not supported\n");
2405 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2408 dev_err(&pdev->dev, "platform_get_resource error.\n");
2412 ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2416 "platform_get_resource IORESOURCE_IRQ error.\n");
2421 irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
2423 reg = ioremap(res->start, resource_size(res));
2426 dev_err(&pdev->dev, "ioremap error.\n");
2430 if (pdev->dev.platform_data == NULL) {
2431 dev_err(&pdev->dev, "no platform data\n");
2436 /* initialize hcd */
2437 hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
2440 dev_err(&pdev->dev, "Failed to create hcd\n");
2443 r8a66597 = hcd_to_r8a66597(hcd);
2444 memset(r8a66597, 0, sizeof(struct r8a66597));
2445 dev_set_drvdata(&pdev->dev, r8a66597);
2446 r8a66597->pdata = pdev->dev.platform_data;
2447 r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
2449 if (r8a66597->pdata->on_chip) {
2450 #ifdef CONFIG_HAVE_CLK
2451 snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
2452 r8a66597->clk = clk_get(&pdev->dev, clk_name);
2453 if (IS_ERR(r8a66597->clk)) {
2454 dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
2456 ret = PTR_ERR(r8a66597->clk);
2460 r8a66597->max_root_hub = 1;
2462 r8a66597->max_root_hub = 2;
2464 spin_lock_init(&r8a66597->lock);
2465 init_timer(&r8a66597->rh_timer);
2466 r8a66597->rh_timer.function = r8a66597_timer;
2467 r8a66597->rh_timer.data = (unsigned long)r8a66597;
2468 r8a66597->reg = (unsigned long)reg;
2470 for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
2471 INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
2472 init_timer(&r8a66597->td_timer[i]);
2473 r8a66597->td_timer[i].function = r8a66597_td_timer;
2474 r8a66597->td_timer[i].data = (unsigned long)r8a66597;
2475 setup_timer(&r8a66597->interval_timer[i],
2476 r8a66597_interval_timer,
2477 (unsigned long)r8a66597);
2479 INIT_LIST_HEAD(&r8a66597->child_device);
2481 hcd->rsrc_start = res->start;
2483 ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
2485 dev_err(&pdev->dev, "Failed to add hcd\n");
2492 #ifdef CONFIG_HAVE_CLK
2493 if (r8a66597->pdata->on_chip)
2494 clk_put(r8a66597->clk);
2506 static struct platform_driver r8a66597_driver = {
2507 .probe = r8a66597_probe,
2508 .remove = r8a66597_remove,
2510 .name = (char *) hcd_name,
2511 .owner = THIS_MODULE,
2512 .pm = R8A66597_DEV_PM_OPS,
2516 static int __init r8a66597_init(void)
2521 printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name,
2523 return platform_driver_register(&r8a66597_driver);
2525 module_init(r8a66597_init);
2527 static void __exit r8a66597_cleanup(void)
2529 platform_driver_unregister(&r8a66597_driver);
2531 module_exit(r8a66597_cleanup);