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
)
428 dbg("free_addr: addr=%d", dev
->address
);
430 dev
->state
= USB_STATE_DEFAULT
;
431 r8a66597
->address_map
&= ~(1 << dev
->address
);
433 dev_set_drvdata(&dev
->udev
->dev
, NULL
);
434 list_del(&dev
->device_list
);
437 for (port
= 0; port
< r8a66597
->max_root_hub
; port
++) {
438 if (r8a66597
->root_hub
[port
].dev
== dev
) {
439 r8a66597
->root_hub
[port
].dev
= NULL
;
445 static void r8a66597_reg_wait(struct r8a66597
*r8a66597
, unsigned long reg
,
452 tmp
= r8a66597_read(r8a66597
, reg
);
454 printk(KERN_ERR
"r8a66597: register%lx, loop %x "
455 "is timeout\n", reg
, loop
);
459 } while ((tmp
& mask
) != loop
);
462 /* this function must be called with interrupt disabled */
463 static void pipe_start(struct r8a66597
*r8a66597
, struct r8a66597_pipe
*pipe
)
467 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
) & PID
;
468 if ((pipe
->info
.pipenum
!= 0) & ((tmp
& PID_STALL
) != 0)) /* stall? */
469 r8a66597_mdfy(r8a66597
, PID_NAK
, PID
, pipe
->pipectr
);
470 r8a66597_mdfy(r8a66597
, PID_BUF
, PID
, pipe
->pipectr
);
473 /* this function must be called with interrupt disabled */
474 static void pipe_stop(struct r8a66597
*r8a66597
, struct r8a66597_pipe
*pipe
)
478 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
) & PID
;
479 if ((tmp
& PID_STALL11
) != PID_STALL11
) /* force stall? */
480 r8a66597_mdfy(r8a66597
, PID_STALL
, PID
, pipe
->pipectr
);
481 r8a66597_mdfy(r8a66597
, PID_NAK
, PID
, pipe
->pipectr
);
482 r8a66597_reg_wait(r8a66597
, pipe
->pipectr
, PBUSY
, 0);
485 /* this function must be called with interrupt disabled */
486 static void clear_all_buffer(struct r8a66597
*r8a66597
,
487 struct r8a66597_pipe
*pipe
)
491 if (!pipe
|| pipe
->info
.pipenum
== 0)
494 pipe_stop(r8a66597
, pipe
);
495 r8a66597_bset(r8a66597
, ACLRM
, pipe
->pipectr
);
496 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
497 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
498 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
499 r8a66597_bclr(r8a66597
, ACLRM
, pipe
->pipectr
);
502 /* this function must be called with interrupt disabled */
503 static void r8a66597_pipe_toggle(struct r8a66597
*r8a66597
,
504 struct r8a66597_pipe
*pipe
, int toggle
)
507 r8a66597_bset(r8a66597
, SQSET
, pipe
->pipectr
);
509 r8a66597_bset(r8a66597
, SQCLR
, pipe
->pipectr
);
512 static inline unsigned short mbw_value(struct r8a66597
*r8a66597
)
514 if (r8a66597
->pdata
->on_chip
)
520 /* this function must be called with interrupt disabled */
521 static inline void cfifo_change(struct r8a66597
*r8a66597
, u16 pipenum
)
523 unsigned short mbw
= mbw_value(r8a66597
);
525 r8a66597_mdfy(r8a66597
, mbw
| pipenum
, mbw
| CURPIPE
, CFIFOSEL
);
526 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, pipenum
);
529 /* this function must be called with interrupt disabled */
530 static inline void fifo_change_from_pipe(struct r8a66597
*r8a66597
,
531 struct r8a66597_pipe
*pipe
)
533 unsigned short mbw
= mbw_value(r8a66597
);
535 cfifo_change(r8a66597
, 0);
536 r8a66597_mdfy(r8a66597
, mbw
| 0, mbw
| CURPIPE
, D0FIFOSEL
);
537 r8a66597_mdfy(r8a66597
, mbw
| 0, mbw
| CURPIPE
, D1FIFOSEL
);
539 r8a66597_mdfy(r8a66597
, mbw
| pipe
->info
.pipenum
, mbw
| CURPIPE
,
541 r8a66597_reg_wait(r8a66597
, pipe
->fifosel
, CURPIPE
, pipe
->info
.pipenum
);
544 static u16
r8a66597_get_pipenum(struct urb
*urb
, struct usb_host_endpoint
*hep
)
546 struct r8a66597_pipe
*pipe
= hep
->hcpriv
;
548 if (usb_pipeendpoint(urb
->pipe
) == 0)
551 return pipe
->info
.pipenum
;
554 static u16
get_urb_to_r8a66597_addr(struct r8a66597
*r8a66597
, struct urb
*urb
)
556 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
558 return (usb_pipedevice(urb
->pipe
) == 0) ? 0 : dev
->address
;
561 static unsigned short *get_toggle_pointer(struct r8a66597_device
*dev
,
567 return usb_pipein(urb_pipe
) ? &dev
->ep_in_toggle
: &dev
->ep_out_toggle
;
570 /* this function must be called with interrupt disabled */
571 static void pipe_toggle_set(struct r8a66597
*r8a66597
,
572 struct r8a66597_pipe
*pipe
,
573 struct urb
*urb
, int set
)
575 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
576 unsigned char endpoint
= usb_pipeendpoint(urb
->pipe
);
577 unsigned short *toggle
= get_toggle_pointer(dev
, urb
->pipe
);
583 *toggle
|= 1 << endpoint
;
585 *toggle
&= ~(1 << endpoint
);
588 /* this function must be called with interrupt disabled */
589 static void pipe_toggle_save(struct r8a66597
*r8a66597
,
590 struct r8a66597_pipe
*pipe
,
593 if (r8a66597_read(r8a66597
, pipe
->pipectr
) & SQMON
)
594 pipe_toggle_set(r8a66597
, pipe
, urb
, 1);
596 pipe_toggle_set(r8a66597
, pipe
, urb
, 0);
599 /* this function must be called with interrupt disabled */
600 static void pipe_toggle_restore(struct r8a66597
*r8a66597
,
601 struct r8a66597_pipe
*pipe
,
604 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
605 unsigned char endpoint
= usb_pipeendpoint(urb
->pipe
);
606 unsigned short *toggle
= get_toggle_pointer(dev
, urb
->pipe
);
611 r8a66597_pipe_toggle(r8a66597
, pipe
, *toggle
& (1 << endpoint
));
614 /* this function must be called with interrupt disabled */
615 static void pipe_buffer_setting(struct r8a66597
*r8a66597
,
616 struct r8a66597_pipe_info
*info
)
620 if (info
->pipenum
== 0)
623 r8a66597_bset(r8a66597
, ACLRM
, get_pipectr_addr(info
->pipenum
));
624 r8a66597_bclr(r8a66597
, ACLRM
, get_pipectr_addr(info
->pipenum
));
625 r8a66597_write(r8a66597
, info
->pipenum
, PIPESEL
);
628 if (info
->type
== R8A66597_BULK
&& info
->dir_in
)
629 val
|= R8A66597_DBLB
| R8A66597_SHTNAK
;
630 val
|= info
->type
| info
->epnum
;
631 r8a66597_write(r8a66597
, val
, PIPECFG
);
633 r8a66597_write(r8a66597
, (info
->buf_bsize
<< 10) | (info
->bufnum
),
635 r8a66597_write(r8a66597
, make_devsel(info
->address
) | info
->maxpacket
,
637 r8a66597_write(r8a66597
, info
->interval
, PIPEPERI
);
640 /* this function must be called with interrupt disabled */
641 static void pipe_setting(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
643 struct r8a66597_pipe_info
*info
;
644 struct urb
*urb
= td
->urb
;
646 if (td
->pipenum
> 0) {
647 info
= &td
->pipe
->info
;
648 cfifo_change(r8a66597
, 0);
649 pipe_buffer_setting(r8a66597
, info
);
651 if (!usb_gettoggle(urb
->dev
, usb_pipeendpoint(urb
->pipe
),
652 usb_pipeout(urb
->pipe
)) &&
653 !usb_pipecontrol(urb
->pipe
)) {
654 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 0);
655 pipe_toggle_set(r8a66597
, td
->pipe
, urb
, 0);
656 clear_all_buffer(r8a66597
, td
->pipe
);
657 usb_settoggle(urb
->dev
, usb_pipeendpoint(urb
->pipe
),
658 usb_pipeout(urb
->pipe
), 1);
660 pipe_toggle_restore(r8a66597
, td
->pipe
, urb
);
664 /* this function must be called with interrupt disabled */
665 static u16
get_empty_pipenum(struct r8a66597
*r8a66597
,
666 struct usb_endpoint_descriptor
*ep
)
668 u16 array
[R8A66597_MAX_NUM_PIPE
], i
= 0, min
;
670 memset(array
, 0, sizeof(array
));
671 switch (usb_endpoint_type(ep
)) {
672 case USB_ENDPOINT_XFER_BULK
:
673 if (usb_endpoint_dir_in(ep
))
680 case USB_ENDPOINT_XFER_INT
:
681 if (usb_endpoint_dir_in(ep
)) {
688 case USB_ENDPOINT_XFER_ISOC
:
689 if (usb_endpoint_dir_in(ep
))
695 printk(KERN_ERR
"r8a66597: Illegal type\n");
701 while (array
[i
] != 0) {
702 if (r8a66597
->pipe_cnt
[min
] > r8a66597
->pipe_cnt
[array
[i
]])
710 static u16
get_r8a66597_type(__u8 type
)
715 case USB_ENDPOINT_XFER_BULK
:
716 r8a66597_type
= R8A66597_BULK
;
718 case USB_ENDPOINT_XFER_INT
:
719 r8a66597_type
= R8A66597_INT
;
721 case USB_ENDPOINT_XFER_ISOC
:
722 r8a66597_type
= R8A66597_ISO
;
725 printk(KERN_ERR
"r8a66597: Illegal type\n");
726 r8a66597_type
= 0x0000;
730 return r8a66597_type
;
733 static u16
get_bufnum(u16 pipenum
)
739 else if (check_bulk_or_isoc(pipenum
))
740 bufnum
= 8 + (pipenum
- 1) * R8A66597_BUF_BSIZE
*2;
741 else if (check_interrupt(pipenum
))
742 bufnum
= 4 + (pipenum
- 6);
744 printk(KERN_ERR
"r8a66597: Illegal pipenum (%d)\n", pipenum
);
749 static u16
get_buf_bsize(u16 pipenum
)
755 else if (check_bulk_or_isoc(pipenum
))
756 buf_bsize
= R8A66597_BUF_BSIZE
- 1;
757 else if (check_interrupt(pipenum
))
760 printk(KERN_ERR
"r8a66597: Illegal pipenum (%d)\n", pipenum
);
765 /* this function must be called with interrupt disabled */
766 static void enable_r8a66597_pipe_dma(struct r8a66597
*r8a66597
,
767 struct r8a66597_device
*dev
,
768 struct r8a66597_pipe
*pipe
,
772 struct r8a66597_pipe_info
*info
= &pipe
->info
;
773 unsigned short mbw
= mbw_value(r8a66597
);
775 /* pipe dma is only for external controlles */
776 if (r8a66597
->pdata
->on_chip
)
779 if ((pipe
->info
.pipenum
!= 0) && (info
->type
!= R8A66597_INT
)) {
780 for (i
= 0; i
< R8A66597_MAX_DMA_CHANNEL
; i
++) {
781 if ((r8a66597
->dma_map
& (1 << i
)) != 0)
784 dev_info(&dev
->udev
->dev
,
785 "address %d, EndpointAddress 0x%02x use "
786 "DMA FIFO\n", usb_pipedevice(urb
->pipe
),
788 USB_ENDPOINT_DIR_MASK
+ info
->epnum
791 r8a66597
->dma_map
|= 1 << i
;
792 dev
->dma_map
|= 1 << i
;
793 set_pipe_reg_addr(pipe
, i
);
795 cfifo_change(r8a66597
, 0);
796 r8a66597_mdfy(r8a66597
, mbw
| pipe
->info
.pipenum
,
797 mbw
| CURPIPE
, pipe
->fifosel
);
799 r8a66597_reg_wait(r8a66597
, pipe
->fifosel
, CURPIPE
,
801 r8a66597_bset(r8a66597
, BCLR
, pipe
->fifoctr
);
807 /* this function must be called with interrupt disabled */
808 static void enable_r8a66597_pipe(struct r8a66597
*r8a66597
, struct urb
*urb
,
809 struct usb_host_endpoint
*hep
,
810 struct r8a66597_pipe_info
*info
)
812 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
813 struct r8a66597_pipe
*pipe
= hep
->hcpriv
;
818 set_pipe_reg_addr(pipe
, R8A66597_PIPE_NO_DMA
);
819 r8a66597
->pipe_cnt
[pipe
->info
.pipenum
]++;
820 dev
->pipe_cnt
[pipe
->info
.pipenum
]++;
822 enable_r8a66597_pipe_dma(r8a66597
, dev
, pipe
, urb
);
825 static void r8a66597_urb_done(struct r8a66597
*r8a66597
, struct urb
*urb
,
827 __releases(r8a66597
->lock
)
828 __acquires(r8a66597
->lock
)
830 if (usb_pipein(urb
->pipe
) && usb_pipetype(urb
->pipe
) != PIPE_CONTROL
) {
833 for (ptr
= urb
->transfer_buffer
;
834 ptr
< urb
->transfer_buffer
+ urb
->transfer_buffer_length
;
836 flush_dcache_page(virt_to_page(ptr
));
839 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597
), urb
);
840 spin_unlock(&r8a66597
->lock
);
841 usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597
), urb
, status
);
842 spin_lock(&r8a66597
->lock
);
845 /* this function must be called with interrupt disabled */
846 static void force_dequeue(struct r8a66597
*r8a66597
, u16 pipenum
, u16 address
)
848 struct r8a66597_td
*td
, *next
;
850 struct list_head
*list
= &r8a66597
->pipe_queue
[pipenum
];
852 if (list_empty(list
))
855 list_for_each_entry_safe(td
, next
, list
, queue
) {
856 if (td
->address
!= address
)
860 list_del(&td
->queue
);
864 r8a66597_urb_done(r8a66597
, urb
, -ENODEV
);
870 /* this function must be called with interrupt disabled */
871 static void disable_r8a66597_pipe_all(struct r8a66597
*r8a66597
,
872 struct r8a66597_device
*dev
)
880 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
881 if (!dev
->pipe_cnt
[pipenum
])
886 force_dequeue(r8a66597
, 0, dev
->address
);
889 r8a66597
->pipe_cnt
[pipenum
] -= dev
->pipe_cnt
[pipenum
];
890 dev
->pipe_cnt
[pipenum
] = 0;
891 force_dequeue(r8a66597
, pipenum
, dev
->address
);
896 r8a66597
->dma_map
&= ~(dev
->dma_map
);
900 static u16
get_interval(struct urb
*urb
, __u8 interval
)
905 if (urb
->dev
->speed
== USB_SPEED_HIGH
) {
909 time
= interval
? interval
- 1 : 0;
911 if (interval
> 128) {
914 /* calculate the nearest value for PIPEPERI */
915 for (i
= 0; i
< 7; i
++) {
916 if ((1 << i
) < interval
&&
917 (1 << (i
+ 1) > interval
))
926 static unsigned long get_timer_interval(struct urb
*urb
, __u8 interval
)
929 unsigned long time
= 1;
931 if (usb_pipeisoc(urb
->pipe
))
934 if (get_r8a66597_usb_speed(urb
->dev
->speed
) == HSMODE
) {
935 for (i
= 0; i
< (interval
- 1); i
++)
937 time
= time
* 125 / 1000; /* uSOF -> msec */
945 /* this function must be called with interrupt disabled */
946 static void init_pipe_info(struct r8a66597
*r8a66597
, struct urb
*urb
,
947 struct usb_host_endpoint
*hep
,
948 struct usb_endpoint_descriptor
*ep
)
950 struct r8a66597_pipe_info info
;
952 info
.pipenum
= get_empty_pipenum(r8a66597
, ep
);
953 info
.address
= get_urb_to_r8a66597_addr(r8a66597
, urb
);
954 info
.epnum
= usb_endpoint_num(ep
);
955 info
.maxpacket
= le16_to_cpu(ep
->wMaxPacketSize
);
956 info
.type
= get_r8a66597_type(usb_endpoint_type(ep
));
957 info
.bufnum
= get_bufnum(info
.pipenum
);
958 info
.buf_bsize
= get_buf_bsize(info
.pipenum
);
959 if (info
.type
== R8A66597_BULK
) {
961 info
.timer_interval
= 0;
963 info
.interval
= get_interval(urb
, ep
->bInterval
);
964 info
.timer_interval
= get_timer_interval(urb
, ep
->bInterval
);
966 if (usb_endpoint_dir_in(ep
))
971 enable_r8a66597_pipe(r8a66597
, urb
, hep
, &info
);
974 static void init_pipe_config(struct r8a66597
*r8a66597
, struct urb
*urb
)
976 struct r8a66597_device
*dev
;
978 dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
979 dev
->state
= USB_STATE_CONFIGURED
;
982 static void pipe_irq_enable(struct r8a66597
*r8a66597
, struct urb
*urb
,
985 if (pipenum
== 0 && usb_pipeout(urb
->pipe
))
986 enable_irq_empty(r8a66597
, pipenum
);
988 enable_irq_ready(r8a66597
, pipenum
);
990 if (!usb_pipeisoc(urb
->pipe
))
991 enable_irq_nrdy(r8a66597
, pipenum
);
994 static void pipe_irq_disable(struct r8a66597
*r8a66597
, u16 pipenum
)
996 disable_irq_ready(r8a66597
, pipenum
);
997 disable_irq_nrdy(r8a66597
, pipenum
);
1000 static void r8a66597_root_hub_start_polling(struct r8a66597
*r8a66597
)
1002 mod_timer(&r8a66597
->rh_timer
,
1003 jiffies
+ msecs_to_jiffies(R8A66597_RH_POLL_TIME
));
1006 static void start_root_hub_sampling(struct r8a66597
*r8a66597
, int port
,
1009 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
1011 rh
->old_syssts
= r8a66597_read(r8a66597
, get_syssts_reg(port
)) & LNST
;
1012 rh
->scount
= R8A66597_MAX_SAMPLING
;
1014 rh
->port
|= 1 << USB_PORT_FEAT_CONNECTION
;
1016 rh
->port
&= ~(1 << USB_PORT_FEAT_CONNECTION
);
1017 rh
->port
|= 1 << USB_PORT_FEAT_C_CONNECTION
;
1019 r8a66597_root_hub_start_polling(r8a66597
);
1022 /* this function must be called with interrupt disabled */
1023 static void r8a66597_check_syssts(struct r8a66597
*r8a66597
, int port
,
1025 __releases(r8a66597
->lock
)
1026 __acquires(r8a66597
->lock
)
1028 if (syssts
== SE0
) {
1029 r8a66597_write(r8a66597
, ~ATTCH
, get_intsts_reg(port
));
1030 r8a66597_bset(r8a66597
, ATTCHE
, get_intenb_reg(port
));
1032 if (syssts
== FS_JSTS
)
1033 r8a66597_bset(r8a66597
, HSE
, get_syscfg_reg(port
));
1034 else if (syssts
== LS_JSTS
)
1035 r8a66597_bclr(r8a66597
, HSE
, get_syscfg_reg(port
));
1037 r8a66597_write(r8a66597
, ~DTCH
, get_intsts_reg(port
));
1038 r8a66597_bset(r8a66597
, DTCHE
, get_intenb_reg(port
));
1040 if (r8a66597
->bus_suspended
)
1041 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1044 spin_unlock(&r8a66597
->lock
);
1045 usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597
));
1046 spin_lock(&r8a66597
->lock
);
1049 /* this function must be called with interrupt disabled */
1050 static void r8a66597_usb_connect(struct r8a66597
*r8a66597
, int port
)
1052 u16 speed
= get_rh_usb_speed(r8a66597
, port
);
1053 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
1055 rh
->port
&= ~((1 << USB_PORT_FEAT_HIGHSPEED
) |
1056 (1 << USB_PORT_FEAT_LOWSPEED
));
1057 if (speed
== HSMODE
)
1058 rh
->port
|= (1 << USB_PORT_FEAT_HIGHSPEED
);
1059 else if (speed
== LSMODE
)
1060 rh
->port
|= (1 << USB_PORT_FEAT_LOWSPEED
);
1062 rh
->port
&= ~(1 << USB_PORT_FEAT_RESET
);
1063 rh
->port
|= 1 << USB_PORT_FEAT_ENABLE
;
1066 /* this function must be called with interrupt disabled */
1067 static void r8a66597_usb_disconnect(struct r8a66597
*r8a66597
, int port
)
1069 struct r8a66597_device
*dev
= r8a66597
->root_hub
[port
].dev
;
1071 disable_r8a66597_pipe_all(r8a66597
, dev
);
1072 free_usb_address(r8a66597
, dev
);
1074 start_root_hub_sampling(r8a66597
, port
, 0);
1077 /* this function must be called with interrupt disabled */
1078 static void prepare_setup_packet(struct r8a66597
*r8a66597
,
1079 struct r8a66597_td
*td
)
1082 __le16
*p
= (__le16
*)td
->urb
->setup_packet
;
1083 unsigned long setup_addr
= USBREQ
;
1085 r8a66597_write(r8a66597
, make_devsel(td
->address
) | td
->maxpacket
,
1087 r8a66597_write(r8a66597
, ~(SIGN
| SACK
), INTSTS1
);
1089 for (i
= 0; i
< 4; i
++) {
1090 r8a66597_write(r8a66597
, le16_to_cpu(p
[i
]), setup_addr
);
1093 r8a66597_write(r8a66597
, SUREQ
, DCPCTR
);
1096 /* this function must be called with interrupt disabled */
1097 static void prepare_packet_read(struct r8a66597
*r8a66597
,
1098 struct r8a66597_td
*td
)
1100 struct urb
*urb
= td
->urb
;
1102 if (usb_pipecontrol(urb
->pipe
)) {
1103 r8a66597_bclr(r8a66597
, R8A66597_DIR
, DCPCFG
);
1104 r8a66597_mdfy(r8a66597
, 0, ISEL
| CURPIPE
, CFIFOSEL
);
1105 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1106 if (urb
->actual_length
== 0) {
1107 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1108 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1110 pipe_irq_disable(r8a66597
, td
->pipenum
);
1111 pipe_start(r8a66597
, td
->pipe
);
1112 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1114 if (urb
->actual_length
== 0) {
1115 pipe_irq_disable(r8a66597
, td
->pipenum
);
1116 pipe_setting(r8a66597
, td
);
1117 pipe_stop(r8a66597
, td
->pipe
);
1118 r8a66597_write(r8a66597
, ~(1 << td
->pipenum
), BRDYSTS
);
1120 if (td
->pipe
->pipetre
) {
1121 r8a66597_write(r8a66597
, TRCLR
,
1123 r8a66597_write(r8a66597
,
1125 (urb
->transfer_buffer_length
,
1128 r8a66597_bset(r8a66597
, TRENB
,
1132 pipe_start(r8a66597
, td
->pipe
);
1133 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1138 /* this function must be called with interrupt disabled */
1139 static void prepare_packet_write(struct r8a66597
*r8a66597
,
1140 struct r8a66597_td
*td
)
1143 struct urb
*urb
= td
->urb
;
1145 if (usb_pipecontrol(urb
->pipe
)) {
1146 pipe_stop(r8a66597
, td
->pipe
);
1147 r8a66597_bset(r8a66597
, R8A66597_DIR
, DCPCFG
);
1148 r8a66597_mdfy(r8a66597
, ISEL
, ISEL
| CURPIPE
, CFIFOSEL
);
1149 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1150 if (urb
->actual_length
== 0) {
1151 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1152 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1155 if (urb
->actual_length
== 0)
1156 pipe_setting(r8a66597
, td
);
1157 if (td
->pipe
->pipetre
)
1158 r8a66597_bclr(r8a66597
, TRENB
, td
->pipe
->pipetre
);
1160 r8a66597_write(r8a66597
, ~(1 << td
->pipenum
), BRDYSTS
);
1162 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1163 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1164 if (unlikely((tmp
& FRDY
) == 0))
1165 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1167 packet_write(r8a66597
, td
->pipenum
);
1168 pipe_start(r8a66597
, td
->pipe
);
1171 /* this function must be called with interrupt disabled */
1172 static void prepare_status_packet(struct r8a66597
*r8a66597
,
1173 struct r8a66597_td
*td
)
1175 struct urb
*urb
= td
->urb
;
1177 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1178 pipe_stop(r8a66597
, td
->pipe
);
1180 if (urb
->setup_packet
[0] & USB_ENDPOINT_DIR_MASK
) {
1181 r8a66597_bset(r8a66597
, R8A66597_DIR
, DCPCFG
);
1182 r8a66597_mdfy(r8a66597
, ISEL
, ISEL
| CURPIPE
, CFIFOSEL
);
1183 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1184 r8a66597_write(r8a66597
, ~BEMP0
, BEMPSTS
);
1185 r8a66597_write(r8a66597
, BCLR
| BVAL
, CFIFOCTR
);
1186 enable_irq_empty(r8a66597
, 0);
1188 r8a66597_bclr(r8a66597
, R8A66597_DIR
, DCPCFG
);
1189 r8a66597_mdfy(r8a66597
, 0, ISEL
| CURPIPE
, CFIFOSEL
);
1190 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1191 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1192 enable_irq_ready(r8a66597
, 0);
1194 enable_irq_nrdy(r8a66597
, 0);
1195 pipe_start(r8a66597
, td
->pipe
);
1198 static int is_set_address(unsigned char *setup_packet
)
1200 if (((setup_packet
[0] & USB_TYPE_MASK
) == USB_TYPE_STANDARD
) &&
1201 setup_packet
[1] == USB_REQ_SET_ADDRESS
)
1207 /* this function must be called with interrupt disabled */
1208 static int start_transfer(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
1214 if (is_set_address(td
->urb
->setup_packet
)) {
1215 td
->set_address
= 1;
1216 td
->urb
->setup_packet
[2] = alloc_usb_address(r8a66597
,
1218 if (td
->urb
->setup_packet
[2] == 0)
1221 prepare_setup_packet(r8a66597
, td
);
1224 prepare_packet_read(r8a66597
, td
);
1227 prepare_packet_write(r8a66597
, td
);
1230 prepare_status_packet(r8a66597
, td
);
1233 printk(KERN_ERR
"r8a66597: invalid type.\n");
1240 static int check_transfer_finish(struct r8a66597_td
*td
, struct urb
*urb
)
1242 if (usb_pipeisoc(urb
->pipe
)) {
1243 if (urb
->number_of_packets
== td
->iso_cnt
)
1247 /* control or bulk or interrupt */
1248 if ((urb
->transfer_buffer_length
<= urb
->actual_length
) ||
1249 (td
->short_packet
) || (td
->zero_packet
))
1255 /* this function must be called with interrupt disabled */
1256 static void set_td_timer(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
1262 if (!list_empty(&r8a66597
->pipe_queue
[td
->pipenum
]) &&
1263 !usb_pipecontrol(td
->urb
->pipe
) && usb_pipein(td
->urb
->pipe
)) {
1264 r8a66597
->timeout_map
|= 1 << td
->pipenum
;
1265 switch (usb_pipetype(td
->urb
->pipe
)) {
1266 case PIPE_INTERRUPT
:
1267 case PIPE_ISOCHRONOUS
:
1275 mod_timer(&r8a66597
->td_timer
[td
->pipenum
],
1276 jiffies
+ msecs_to_jiffies(time
));
1280 /* this function must be called with interrupt disabled */
1281 static void finish_request(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
,
1282 u16 pipenum
, struct urb
*urb
, int status
)
1283 __releases(r8a66597
->lock
) __acquires(r8a66597
->lock
)
1286 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
1288 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1291 if (td
->set_address
&& (status
!= 0 || urb
->unlinked
))
1292 r8a66597
->address_map
&= ~(1 << urb
->setup_packet
[2]);
1294 pipe_toggle_save(r8a66597
, td
->pipe
, urb
);
1295 list_del(&td
->queue
);
1299 if (!list_empty(&r8a66597
->pipe_queue
[pipenum
]))
1303 if (usb_pipeisoc(urb
->pipe
))
1304 urb
->start_frame
= r8a66597_get_frame(hcd
);
1306 r8a66597_urb_done(r8a66597
, urb
, status
);
1310 td
= r8a66597_get_td(r8a66597
, pipenum
);
1314 start_transfer(r8a66597
, td
);
1315 set_td_timer(r8a66597
, td
);
1319 static void packet_read(struct r8a66597
*r8a66597
, u16 pipenum
)
1322 int rcv_len
, bufsize
, urb_len
, size
;
1324 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1333 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1334 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1335 if (unlikely((tmp
& FRDY
) == 0)) {
1336 pipe_stop(r8a66597
, td
->pipe
);
1337 pipe_irq_disable(r8a66597
, pipenum
);
1338 printk(KERN_ERR
"r8a66597: in fifo not ready (%d)\n", pipenum
);
1339 finish_request(r8a66597
, td
, pipenum
, td
->urb
, -EPIPE
);
1343 /* prepare parameters */
1344 rcv_len
= tmp
& DTLN
;
1345 if (usb_pipeisoc(urb
->pipe
)) {
1346 buf
= (u16
*)(urb
->transfer_buffer
+
1347 urb
->iso_frame_desc
[td
->iso_cnt
].offset
);
1348 urb_len
= urb
->iso_frame_desc
[td
->iso_cnt
].length
;
1350 buf
= (void *)urb
->transfer_buffer
+ urb
->actual_length
;
1351 urb_len
= urb
->transfer_buffer_length
- urb
->actual_length
;
1353 bufsize
= min(urb_len
, (int) td
->maxpacket
);
1354 if (rcv_len
<= bufsize
) {
1358 status
= -EOVERFLOW
;
1362 /* update parameters */
1363 urb
->actual_length
+= size
;
1365 td
->zero_packet
= 1;
1366 if (rcv_len
< bufsize
) {
1367 td
->short_packet
= 1;
1369 if (usb_pipeisoc(urb
->pipe
)) {
1370 urb
->iso_frame_desc
[td
->iso_cnt
].actual_length
= size
;
1371 urb
->iso_frame_desc
[td
->iso_cnt
].status
= status
;
1376 /* check transfer finish */
1377 if (finish
|| check_transfer_finish(td
, urb
)) {
1378 pipe_stop(r8a66597
, td
->pipe
);
1379 pipe_irq_disable(r8a66597
, pipenum
);
1384 if (urb
->transfer_buffer
) {
1386 r8a66597_write(r8a66597
, BCLR
, td
->pipe
->fifoctr
);
1388 r8a66597_read_fifo(r8a66597
, td
->pipe
->fifoaddr
,
1392 if (finish
&& pipenum
!= 0)
1393 finish_request(r8a66597
, td
, pipenum
, urb
, status
);
1396 static void packet_write(struct r8a66597
*r8a66597
, u16 pipenum
)
1401 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1408 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1409 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1410 if (unlikely((tmp
& FRDY
) == 0)) {
1411 pipe_stop(r8a66597
, td
->pipe
);
1412 pipe_irq_disable(r8a66597
, pipenum
);
1413 printk(KERN_ERR
"r8a66597: out fifo not ready (%d)\n", pipenum
);
1414 finish_request(r8a66597
, td
, pipenum
, urb
, -EPIPE
);
1418 /* prepare parameters */
1419 bufsize
= td
->maxpacket
;
1420 if (usb_pipeisoc(urb
->pipe
)) {
1421 buf
= (u16
*)(urb
->transfer_buffer
+
1422 urb
->iso_frame_desc
[td
->iso_cnt
].offset
);
1424 (int)urb
->iso_frame_desc
[td
->iso_cnt
].length
);
1426 buf
= (u16
*)(urb
->transfer_buffer
+ urb
->actual_length
);
1427 size
= min_t(u32
, bufsize
,
1428 urb
->transfer_buffer_length
- urb
->actual_length
);
1433 r8a66597_write(r8a66597
, ~(1 << pipenum
), BEMPSTS
);
1434 if (urb
->transfer_buffer
) {
1435 r8a66597_write_fifo(r8a66597
, td
->pipe
->fifoaddr
, buf
, size
);
1436 if (!usb_pipebulk(urb
->pipe
) || td
->maxpacket
!= size
)
1437 r8a66597_write(r8a66597
, BVAL
, td
->pipe
->fifoctr
);
1440 /* update parameters */
1441 urb
->actual_length
+= size
;
1442 if (usb_pipeisoc(urb
->pipe
)) {
1443 urb
->iso_frame_desc
[td
->iso_cnt
].actual_length
= size
;
1444 urb
->iso_frame_desc
[td
->iso_cnt
].status
= 0;
1448 /* check transfer finish */
1449 if (check_transfer_finish(td
, urb
)) {
1450 disable_irq_ready(r8a66597
, pipenum
);
1451 enable_irq_empty(r8a66597
, pipenum
);
1452 if (!usb_pipeisoc(urb
->pipe
))
1453 enable_irq_nrdy(r8a66597
, pipenum
);
1455 pipe_irq_enable(r8a66597
, urb
, pipenum
);
1459 static void check_next_phase(struct r8a66597
*r8a66597
, int status
)
1461 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, 0);
1472 if (check_transfer_finish(td
, urb
))
1473 td
->type
= USB_PID_ACK
;
1476 if (urb
->transfer_buffer_length
== urb
->actual_length
)
1477 td
->type
= USB_PID_ACK
;
1478 else if (usb_pipeout(urb
->pipe
))
1479 td
->type
= USB_PID_OUT
;
1481 td
->type
= USB_PID_IN
;
1488 if (finish
|| status
!= 0 || urb
->unlinked
)
1489 finish_request(r8a66597
, td
, 0, urb
, status
);
1491 start_transfer(r8a66597
, td
);
1494 static int get_urb_error(struct r8a66597
*r8a66597
, u16 pipenum
)
1496 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1499 u16 pid
= r8a66597_read(r8a66597
, td
->pipe
->pipectr
) & PID
;
1509 static void irq_pipe_ready(struct r8a66597
*r8a66597
)
1514 struct r8a66597_td
*td
;
1516 mask
= r8a66597_read(r8a66597
, BRDYSTS
)
1517 & r8a66597_read(r8a66597
, BRDYENB
);
1518 r8a66597_write(r8a66597
, ~mask
, BRDYSTS
);
1520 td
= r8a66597_get_td(r8a66597
, 0);
1521 if (td
&& td
->type
== USB_PID_IN
)
1522 packet_read(r8a66597
, 0);
1524 pipe_irq_disable(r8a66597
, 0);
1525 check_next_phase(r8a66597
, 0);
1528 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1529 check
= 1 << pipenum
;
1531 td
= r8a66597_get_td(r8a66597
, pipenum
);
1535 if (td
->type
== USB_PID_IN
)
1536 packet_read(r8a66597
, pipenum
);
1537 else if (td
->type
== USB_PID_OUT
)
1538 packet_write(r8a66597
, pipenum
);
1543 static void irq_pipe_empty(struct r8a66597
*r8a66597
)
1549 struct r8a66597_td
*td
;
1551 mask
= r8a66597_read(r8a66597
, BEMPSTS
)
1552 & r8a66597_read(r8a66597
, BEMPENB
);
1553 r8a66597_write(r8a66597
, ~mask
, BEMPSTS
);
1555 cfifo_change(r8a66597
, 0);
1556 td
= r8a66597_get_td(r8a66597
, 0);
1557 if (td
&& td
->type
!= USB_PID_OUT
)
1558 disable_irq_empty(r8a66597
, 0);
1559 check_next_phase(r8a66597
, 0);
1562 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1563 check
= 1 << pipenum
;
1565 struct r8a66597_td
*td
;
1566 td
= r8a66597_get_td(r8a66597
, pipenum
);
1570 tmp
= r8a66597_read(r8a66597
, td
->pipe
->pipectr
);
1571 if ((tmp
& INBUFM
) == 0) {
1572 disable_irq_empty(r8a66597
, pipenum
);
1573 pipe_irq_disable(r8a66597
, pipenum
);
1574 finish_request(r8a66597
, td
, pipenum
, td
->urb
,
1581 static void irq_pipe_nrdy(struct r8a66597
*r8a66597
)
1588 mask
= r8a66597_read(r8a66597
, NRDYSTS
)
1589 & r8a66597_read(r8a66597
, NRDYENB
);
1590 r8a66597_write(r8a66597
, ~mask
, NRDYSTS
);
1592 cfifo_change(r8a66597
, 0);
1593 status
= get_urb_error(r8a66597
, 0);
1594 pipe_irq_disable(r8a66597
, 0);
1595 check_next_phase(r8a66597
, status
);
1598 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1599 check
= 1 << pipenum
;
1601 struct r8a66597_td
*td
;
1602 td
= r8a66597_get_td(r8a66597
, pipenum
);
1606 status
= get_urb_error(r8a66597
, pipenum
);
1607 pipe_irq_disable(r8a66597
, pipenum
);
1608 pipe_stop(r8a66597
, td
->pipe
);
1609 finish_request(r8a66597
, td
, pipenum
, td
->urb
, status
);
1614 static irqreturn_t
r8a66597_irq(struct usb_hcd
*hcd
)
1616 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1617 u16 intsts0
, intsts1
, intsts2
;
1618 u16 intenb0
, intenb1
, intenb2
;
1619 u16 mask0
, mask1
, mask2
;
1622 spin_lock(&r8a66597
->lock
);
1624 intsts0
= r8a66597_read(r8a66597
, INTSTS0
);
1625 intsts1
= r8a66597_read(r8a66597
, INTSTS1
);
1626 intsts2
= r8a66597_read(r8a66597
, INTSTS2
);
1627 intenb0
= r8a66597_read(r8a66597
, INTENB0
);
1628 intenb1
= r8a66597_read(r8a66597
, INTENB1
);
1629 intenb2
= r8a66597_read(r8a66597
, INTENB2
);
1631 mask2
= intsts2
& intenb2
;
1632 mask1
= intsts1
& intenb1
;
1633 mask0
= intsts0
& intenb0
& (BEMP
| NRDY
| BRDY
);
1635 if (mask2
& ATTCH
) {
1636 r8a66597_write(r8a66597
, ~ATTCH
, INTSTS2
);
1637 r8a66597_bclr(r8a66597
, ATTCHE
, INTENB2
);
1639 /* start usb bus sampling */
1640 start_root_hub_sampling(r8a66597
, 1, 1);
1643 r8a66597_write(r8a66597
, ~DTCH
, INTSTS2
);
1644 r8a66597_bclr(r8a66597
, DTCHE
, INTENB2
);
1645 r8a66597_usb_disconnect(r8a66597
, 1);
1648 r8a66597_write(r8a66597
, ~BCHG
, INTSTS2
);
1649 r8a66597_bclr(r8a66597
, BCHGE
, INTENB2
);
1650 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1655 if (mask1
& ATTCH
) {
1656 r8a66597_write(r8a66597
, ~ATTCH
, INTSTS1
);
1657 r8a66597_bclr(r8a66597
, ATTCHE
, INTENB1
);
1659 /* start usb bus sampling */
1660 start_root_hub_sampling(r8a66597
, 0, 1);
1663 r8a66597_write(r8a66597
, ~DTCH
, INTSTS1
);
1664 r8a66597_bclr(r8a66597
, DTCHE
, INTENB1
);
1665 r8a66597_usb_disconnect(r8a66597
, 0);
1668 r8a66597_write(r8a66597
, ~BCHG
, INTSTS1
);
1669 r8a66597_bclr(r8a66597
, BCHGE
, INTENB1
);
1670 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1674 r8a66597_write(r8a66597
, ~SIGN
, INTSTS1
);
1675 status
= get_urb_error(r8a66597
, 0);
1676 check_next_phase(r8a66597
, status
);
1679 r8a66597_write(r8a66597
, ~SACK
, INTSTS1
);
1680 check_next_phase(r8a66597
, 0);
1685 irq_pipe_ready(r8a66597
);
1687 irq_pipe_empty(r8a66597
);
1689 irq_pipe_nrdy(r8a66597
);
1692 spin_unlock(&r8a66597
->lock
);
1696 /* this function must be called with interrupt disabled */
1697 static void r8a66597_root_hub_control(struct r8a66597
*r8a66597
, int port
)
1700 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
1702 if (rh
->port
& (1 << USB_PORT_FEAT_RESET
)) {
1703 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
1705 tmp
= r8a66597_read(r8a66597
, dvstctr_reg
);
1706 if ((tmp
& USBRST
) == USBRST
) {
1707 r8a66597_mdfy(r8a66597
, UACT
, USBRST
| UACT
,
1709 r8a66597_root_hub_start_polling(r8a66597
);
1711 r8a66597_usb_connect(r8a66597
, port
);
1714 if (!(rh
->port
& (1 << USB_PORT_FEAT_CONNECTION
))) {
1715 r8a66597_write(r8a66597
, ~ATTCH
, get_intsts_reg(port
));
1716 r8a66597_bset(r8a66597
, ATTCHE
, get_intenb_reg(port
));
1719 if (rh
->scount
> 0) {
1720 tmp
= r8a66597_read(r8a66597
, get_syssts_reg(port
)) & LNST
;
1721 if (tmp
== rh
->old_syssts
) {
1723 if (rh
->scount
== 0)
1724 r8a66597_check_syssts(r8a66597
, port
, tmp
);
1726 r8a66597_root_hub_start_polling(r8a66597
);
1728 rh
->scount
= R8A66597_MAX_SAMPLING
;
1729 rh
->old_syssts
= tmp
;
1730 r8a66597_root_hub_start_polling(r8a66597
);
1735 static void r8a66597_interval_timer(unsigned long _r8a66597
)
1737 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1738 unsigned long flags
;
1740 struct r8a66597_td
*td
;
1742 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1744 for (pipenum
= 0; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1745 if (!(r8a66597
->interval_map
& (1 << pipenum
)))
1747 if (timer_pending(&r8a66597
->interval_timer
[pipenum
]))
1750 td
= r8a66597_get_td(r8a66597
, pipenum
);
1752 start_transfer(r8a66597
, td
);
1755 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1758 static void r8a66597_td_timer(unsigned long _r8a66597
)
1760 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1761 unsigned long flags
;
1763 struct r8a66597_td
*td
, *new_td
= NULL
;
1764 struct r8a66597_pipe
*pipe
;
1766 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1767 for (pipenum
= 0; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1768 if (!(r8a66597
->timeout_map
& (1 << pipenum
)))
1770 if (timer_pending(&r8a66597
->td_timer
[pipenum
]))
1773 td
= r8a66597_get_td(r8a66597
, pipenum
);
1775 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1779 if (td
->urb
->actual_length
) {
1780 set_td_timer(r8a66597
, td
);
1785 pipe_stop(r8a66597
, pipe
);
1789 list_move_tail(&new_td
->queue
,
1790 &r8a66597
->pipe_queue
[pipenum
]);
1791 new_td
= r8a66597_get_td(r8a66597
, pipenum
);
1796 } while (td
!= new_td
&& td
->address
== new_td
->address
);
1798 start_transfer(r8a66597
, new_td
);
1801 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1803 set_td_timer(r8a66597
, new_td
);
1806 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1809 static void r8a66597_timer(unsigned long _r8a66597
)
1811 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1812 unsigned long flags
;
1815 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1817 for (port
= 0; port
< r8a66597
->max_root_hub
; port
++)
1818 r8a66597_root_hub_control(r8a66597
, port
);
1820 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1823 static int check_pipe_config(struct r8a66597
*r8a66597
, struct urb
*urb
)
1825 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
1827 if (dev
&& dev
->address
&& dev
->state
!= USB_STATE_CONFIGURED
&&
1828 (urb
->dev
->state
== USB_STATE_CONFIGURED
))
1834 static int r8a66597_start(struct usb_hcd
*hcd
)
1836 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1838 hcd
->state
= HC_STATE_RUNNING
;
1839 return enable_controller(r8a66597
);
1842 static void r8a66597_stop(struct usb_hcd
*hcd
)
1844 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1846 disable_controller(r8a66597
);
1849 static void set_address_zero(struct r8a66597
*r8a66597
, struct urb
*urb
)
1851 unsigned int usb_address
= usb_pipedevice(urb
->pipe
);
1852 u16 root_port
, hub_port
;
1854 if (usb_address
== 0) {
1855 get_port_number(r8a66597
, urb
->dev
->devpath
,
1856 &root_port
, &hub_port
);
1857 set_devadd_reg(r8a66597
, 0,
1858 get_r8a66597_usb_speed(urb
->dev
->speed
),
1859 get_parent_r8a66597_address(r8a66597
, urb
->dev
),
1860 hub_port
, root_port
);
1864 static struct r8a66597_td
*r8a66597_make_td(struct r8a66597
*r8a66597
,
1866 struct usb_host_endpoint
*hep
)
1868 struct r8a66597_td
*td
;
1871 td
= kzalloc(sizeof(struct r8a66597_td
), GFP_ATOMIC
);
1875 pipenum
= r8a66597_get_pipenum(urb
, hep
);
1876 td
->pipenum
= pipenum
;
1877 td
->pipe
= hep
->hcpriv
;
1879 td
->address
= get_urb_to_r8a66597_addr(r8a66597
, urb
);
1880 td
->maxpacket
= usb_maxpacket(urb
->dev
, urb
->pipe
,
1881 !usb_pipein(urb
->pipe
));
1882 if (usb_pipecontrol(urb
->pipe
))
1883 td
->type
= USB_PID_SETUP
;
1884 else if (usb_pipein(urb
->pipe
))
1885 td
->type
= USB_PID_IN
;
1887 td
->type
= USB_PID_OUT
;
1888 INIT_LIST_HEAD(&td
->queue
);
1893 static int r8a66597_urb_enqueue(struct usb_hcd
*hcd
,
1897 struct usb_host_endpoint
*hep
= urb
->ep
;
1898 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1899 struct r8a66597_td
*td
= NULL
;
1900 int ret
, request
= 0;
1901 unsigned long flags
;
1903 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1904 if (!get_urb_to_r8a66597_dev(r8a66597
, urb
)) {
1906 goto error_not_linked
;
1909 ret
= usb_hcd_link_urb_to_ep(hcd
, urb
);
1911 goto error_not_linked
;
1914 hep
->hcpriv
= kzalloc(sizeof(struct r8a66597_pipe
),
1920 set_pipe_reg_addr(hep
->hcpriv
, R8A66597_PIPE_NO_DMA
);
1921 if (usb_pipeendpoint(urb
->pipe
))
1922 init_pipe_info(r8a66597
, urb
, hep
, &hep
->desc
);
1925 if (unlikely(check_pipe_config(r8a66597
, urb
)))
1926 init_pipe_config(r8a66597
, urb
);
1928 set_address_zero(r8a66597
, urb
);
1929 td
= r8a66597_make_td(r8a66597
, urb
, hep
);
1934 if (list_empty(&r8a66597
->pipe_queue
[td
->pipenum
]))
1936 list_add_tail(&td
->queue
, &r8a66597
->pipe_queue
[td
->pipenum
]);
1940 if (td
->pipe
->info
.timer_interval
) {
1941 r8a66597
->interval_map
|= 1 << td
->pipenum
;
1942 mod_timer(&r8a66597
->interval_timer
[td
->pipenum
],
1943 jiffies
+ msecs_to_jiffies(
1944 td
->pipe
->info
.timer_interval
));
1946 ret
= start_transfer(r8a66597
, td
);
1948 list_del(&td
->queue
);
1953 set_td_timer(r8a66597
, td
);
1957 usb_hcd_unlink_urb_from_ep(hcd
, urb
);
1959 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1963 static int r8a66597_urb_dequeue(struct usb_hcd
*hcd
, struct urb
*urb
,
1966 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1967 struct r8a66597_td
*td
;
1968 unsigned long flags
;
1971 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1972 rc
= usb_hcd_check_unlink_urb(hcd
, urb
, status
);
1978 pipe_stop(r8a66597
, td
->pipe
);
1979 pipe_irq_disable(r8a66597
, td
->pipenum
);
1980 disable_irq_empty(r8a66597
, td
->pipenum
);
1981 finish_request(r8a66597
, td
, td
->pipenum
, urb
, status
);
1984 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1988 static void r8a66597_endpoint_disable(struct usb_hcd
*hcd
,
1989 struct usb_host_endpoint
*hep
)
1991 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1992 struct r8a66597_pipe
*pipe
= (struct r8a66597_pipe
*)hep
->hcpriv
;
1993 struct r8a66597_td
*td
;
1994 struct urb
*urb
= NULL
;
1996 unsigned long flags
;
2000 pipenum
= pipe
->info
.pipenum
;
2008 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2009 pipe_stop(r8a66597
, pipe
);
2010 pipe_irq_disable(r8a66597
, pipenum
);
2011 disable_irq_empty(r8a66597
, pipenum
);
2012 td
= r8a66597_get_td(r8a66597
, pipenum
);
2015 finish_request(r8a66597
, td
, pipenum
, urb
, -ESHUTDOWN
);
2018 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2021 static int r8a66597_get_frame(struct usb_hcd
*hcd
)
2023 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2024 return r8a66597_read(r8a66597
, FRMNUM
) & 0x03FF;
2027 static void collect_usb_address_map(struct usb_device
*udev
, unsigned long *map
)
2031 if (udev
->state
== USB_STATE_CONFIGURED
&&
2032 udev
->parent
&& udev
->parent
->devnum
> 1 &&
2033 udev
->parent
->descriptor
.bDeviceClass
== USB_CLASS_HUB
)
2034 map
[udev
->devnum
/32] |= (1 << (udev
->devnum
% 32));
2036 for (chix
= 0; chix
< udev
->maxchild
; chix
++) {
2037 struct usb_device
*childdev
= udev
->children
[chix
];
2040 collect_usb_address_map(childdev
, map
);
2044 /* this function must be called with interrupt disabled */
2045 static struct r8a66597_device
*get_r8a66597_device(struct r8a66597
*r8a66597
,
2048 struct r8a66597_device
*dev
;
2049 struct list_head
*list
= &r8a66597
->child_device
;
2051 list_for_each_entry(dev
, list
, device_list
) {
2052 if (dev
->usb_address
!= addr
)
2058 printk(KERN_ERR
"r8a66597: get_r8a66597_device fail.(%d)\n", addr
);
2062 static void update_usb_address_map(struct r8a66597
*r8a66597
,
2063 struct usb_device
*root_hub
,
2068 unsigned long flags
;
2070 for (i
= 0; i
< 4; i
++) {
2071 diff
= r8a66597
->child_connect_map
[i
] ^ map
[i
];
2075 for (j
= 0; j
< 32; j
++) {
2076 if (!(diff
& (1 << j
)))
2080 if (map
[i
] & (1 << j
))
2081 set_child_connect_map(r8a66597
, addr
);
2083 struct r8a66597_device
*dev
;
2085 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2086 dev
= get_r8a66597_device(r8a66597
, addr
);
2087 disable_r8a66597_pipe_all(r8a66597
, dev
);
2088 free_usb_address(r8a66597
, dev
);
2089 put_child_connect_map(r8a66597
, addr
);
2090 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2096 static void r8a66597_check_detect_child(struct r8a66597
*r8a66597
,
2097 struct usb_hcd
*hcd
)
2099 struct usb_bus
*bus
;
2100 unsigned long now_map
[4];
2102 memset(now_map
, 0, sizeof(now_map
));
2104 list_for_each_entry(bus
, &usb_bus_list
, bus_list
) {
2108 if (bus
->busnum
!= hcd
->self
.busnum
)
2111 collect_usb_address_map(bus
->root_hub
, now_map
);
2112 update_usb_address_map(r8a66597
, bus
->root_hub
, now_map
);
2116 static int r8a66597_hub_status_data(struct usb_hcd
*hcd
, char *buf
)
2118 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2119 unsigned long flags
;
2122 r8a66597_check_detect_child(r8a66597
, hcd
);
2124 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2126 *buf
= 0; /* initialize (no change) */
2128 for (i
= 0; i
< r8a66597
->max_root_hub
; i
++) {
2129 if (r8a66597
->root_hub
[i
].port
& 0xffff0000)
2130 *buf
|= 1 << (i
+ 1);
2133 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2138 static void r8a66597_hub_descriptor(struct r8a66597
*r8a66597
,
2139 struct usb_hub_descriptor
*desc
)
2141 desc
->bDescriptorType
= 0x29;
2142 desc
->bHubContrCurrent
= 0;
2143 desc
->bNbrPorts
= r8a66597
->max_root_hub
;
2144 desc
->bDescLength
= 9;
2145 desc
->bPwrOn2PwrGood
= 0;
2146 desc
->wHubCharacteristics
= cpu_to_le16(0x0011);
2147 desc
->bitmap
[0] = ((1 << r8a66597
->max_root_hub
) - 1) << 1;
2148 desc
->bitmap
[1] = ~0;
2151 static int r8a66597_hub_control(struct usb_hcd
*hcd
, u16 typeReq
, u16 wValue
,
2152 u16 wIndex
, char *buf
, u16 wLength
)
2154 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2156 int port
= (wIndex
& 0x00FF) - 1;
2157 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2158 unsigned long flags
;
2162 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2164 case ClearHubFeature
:
2167 case C_HUB_OVER_CURRENT
:
2168 case C_HUB_LOCAL_POWER
:
2174 case ClearPortFeature
:
2175 if (wIndex
> r8a66597
->max_root_hub
)
2181 case USB_PORT_FEAT_ENABLE
:
2182 rh
->port
&= ~(1 << USB_PORT_FEAT_POWER
);
2184 case USB_PORT_FEAT_SUSPEND
:
2186 case USB_PORT_FEAT_POWER
:
2187 r8a66597_port_power(r8a66597
, port
, 0);
2189 case USB_PORT_FEAT_C_ENABLE
:
2190 case USB_PORT_FEAT_C_SUSPEND
:
2191 case USB_PORT_FEAT_C_CONNECTION
:
2192 case USB_PORT_FEAT_C_OVER_CURRENT
:
2193 case USB_PORT_FEAT_C_RESET
:
2198 rh
->port
&= ~(1 << wValue
);
2200 case GetHubDescriptor
:
2201 r8a66597_hub_descriptor(r8a66597
,
2202 (struct usb_hub_descriptor
*)buf
);
2208 if (wIndex
> r8a66597
->max_root_hub
)
2210 *(__le32
*)buf
= cpu_to_le32(rh
->port
);
2212 case SetPortFeature
:
2213 if (wIndex
> r8a66597
->max_root_hub
)
2219 case USB_PORT_FEAT_SUSPEND
:
2221 case USB_PORT_FEAT_POWER
:
2222 r8a66597_port_power(r8a66597
, port
, 1);
2223 rh
->port
|= (1 << USB_PORT_FEAT_POWER
);
2225 case USB_PORT_FEAT_RESET
: {
2226 struct r8a66597_device
*dev
= rh
->dev
;
2228 rh
->port
|= (1 << USB_PORT_FEAT_RESET
);
2230 disable_r8a66597_pipe_all(r8a66597
, dev
);
2231 free_usb_address(r8a66597
, dev
);
2233 r8a66597_mdfy(r8a66597
, USBRST
, USBRST
| UACT
,
2234 get_dvstctr_reg(port
));
2235 mod_timer(&r8a66597
->rh_timer
,
2236 jiffies
+ msecs_to_jiffies(50));
2242 rh
->port
|= 1 << wValue
;
2250 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2254 #if defined(CONFIG_PM)
2255 static int r8a66597_bus_suspend(struct usb_hcd
*hcd
)
2257 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2260 dbg("%s", __func__
);
2262 for (port
= 0; port
< r8a66597
->max_root_hub
; port
++) {
2263 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2264 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
2266 if (!(rh
->port
& (1 << USB_PORT_FEAT_ENABLE
)))
2269 dbg("suspend port = %d", port
);
2270 r8a66597_bclr(r8a66597
, UACT
, dvstctr_reg
); /* suspend */
2271 rh
->port
|= 1 << USB_PORT_FEAT_SUSPEND
;
2273 if (rh
->dev
->udev
->do_remote_wakeup
) {
2274 msleep(3); /* waiting last SOF */
2275 r8a66597_bset(r8a66597
, RWUPE
, dvstctr_reg
);
2276 r8a66597_write(r8a66597
, ~BCHG
, get_intsts_reg(port
));
2277 r8a66597_bset(r8a66597
, BCHGE
, get_intenb_reg(port
));
2281 r8a66597
->bus_suspended
= 1;
2286 static int r8a66597_bus_resume(struct usb_hcd
*hcd
)
2288 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2291 dbg("%s", __func__
);
2293 for (port
= 0; port
< r8a66597
->max_root_hub
; port
++) {
2294 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2295 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
2297 if (!(rh
->port
& (1 << USB_PORT_FEAT_SUSPEND
)))
2300 dbg("resume port = %d", port
);
2301 rh
->port
&= ~(1 << USB_PORT_FEAT_SUSPEND
);
2302 rh
->port
|= 1 << USB_PORT_FEAT_C_SUSPEND
;
2303 r8a66597_mdfy(r8a66597
, RESUME
, RESUME
| UACT
, dvstctr_reg
);
2305 r8a66597_mdfy(r8a66597
, UACT
, RESUME
| UACT
, dvstctr_reg
);
2312 #define r8a66597_bus_suspend NULL
2313 #define r8a66597_bus_resume NULL
2316 static struct hc_driver r8a66597_hc_driver
= {
2317 .description
= hcd_name
,
2318 .hcd_priv_size
= sizeof(struct r8a66597
),
2319 .irq
= r8a66597_irq
,
2322 * generic hardware linkage
2326 .start
= r8a66597_start
,
2327 .stop
= r8a66597_stop
,
2330 * managing i/o requests and associated device resources
2332 .urb_enqueue
= r8a66597_urb_enqueue
,
2333 .urb_dequeue
= r8a66597_urb_dequeue
,
2334 .endpoint_disable
= r8a66597_endpoint_disable
,
2337 * periodic schedule support
2339 .get_frame_number
= r8a66597_get_frame
,
2344 .hub_status_data
= r8a66597_hub_status_data
,
2345 .hub_control
= r8a66597_hub_control
,
2346 .bus_suspend
= r8a66597_bus_suspend
,
2347 .bus_resume
= r8a66597_bus_resume
,
2350 #if defined(CONFIG_PM)
2351 static int r8a66597_suspend(struct device
*dev
)
2353 struct r8a66597
*r8a66597
= dev_get_drvdata(dev
);
2356 dbg("%s", __func__
);
2358 disable_controller(r8a66597
);
2360 for (port
= 0; port
< r8a66597
->max_root_hub
; port
++) {
2361 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2363 rh
->port
= 0x00000000;
2369 static int r8a66597_resume(struct device
*dev
)
2371 struct r8a66597
*r8a66597
= dev_get_drvdata(dev
);
2372 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
2374 dbg("%s", __func__
);
2376 enable_controller(r8a66597
);
2377 usb_root_hub_lost_power(hcd
->self
.root_hub
);
2382 static const struct dev_pm_ops r8a66597_dev_pm_ops
= {
2383 .suspend
= r8a66597_suspend
,
2384 .resume
= r8a66597_resume
,
2385 .poweroff
= r8a66597_suspend
,
2386 .restore
= r8a66597_resume
,
2389 #define R8A66597_DEV_PM_OPS (&r8a66597_dev_pm_ops)
2390 #else /* if defined(CONFIG_PM) */
2391 #define R8A66597_DEV_PM_OPS NULL
2394 static int __init_or_module
r8a66597_remove(struct platform_device
*pdev
)
2396 struct r8a66597
*r8a66597
= dev_get_drvdata(&pdev
->dev
);
2397 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
2399 del_timer_sync(&r8a66597
->rh_timer
);
2400 usb_remove_hcd(hcd
);
2401 iounmap((void *)r8a66597
->reg
);
2402 #ifdef CONFIG_HAVE_CLK
2403 if (r8a66597
->pdata
->on_chip
)
2404 clk_put(r8a66597
->clk
);
2410 static int __devinit
r8a66597_probe(struct platform_device
*pdev
)
2412 #ifdef CONFIG_HAVE_CLK
2415 struct resource
*res
= NULL
, *ires
;
2417 void __iomem
*reg
= NULL
;
2418 struct usb_hcd
*hcd
= NULL
;
2419 struct r8a66597
*r8a66597
;
2422 unsigned long irq_trigger
;
2424 if (pdev
->dev
.dma_mask
) {
2426 dev_err(&pdev
->dev
, "dma not supported\n");
2430 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
2433 dev_err(&pdev
->dev
, "platform_get_resource error.\n");
2437 ires
= platform_get_resource(pdev
, IORESOURCE_IRQ
, 0);
2441 "platform_get_resource IORESOURCE_IRQ error.\n");
2446 irq_trigger
= ires
->flags
& IRQF_TRIGGER_MASK
;
2448 reg
= ioremap(res
->start
, resource_size(res
));
2451 dev_err(&pdev
->dev
, "ioremap error.\n");
2455 if (pdev
->dev
.platform_data
== NULL
) {
2456 dev_err(&pdev
->dev
, "no platform data\n");
2461 /* initialize hcd */
2462 hcd
= usb_create_hcd(&r8a66597_hc_driver
, &pdev
->dev
, (char *)hcd_name
);
2465 dev_err(&pdev
->dev
, "Failed to create hcd\n");
2468 r8a66597
= hcd_to_r8a66597(hcd
);
2469 memset(r8a66597
, 0, sizeof(struct r8a66597
));
2470 dev_set_drvdata(&pdev
->dev
, r8a66597
);
2471 r8a66597
->pdata
= pdev
->dev
.platform_data
;
2472 r8a66597
->irq_sense_low
= irq_trigger
== IRQF_TRIGGER_LOW
;
2474 if (r8a66597
->pdata
->on_chip
) {
2475 #ifdef CONFIG_HAVE_CLK
2476 snprintf(clk_name
, sizeof(clk_name
), "usb%d", pdev
->id
);
2477 r8a66597
->clk
= clk_get(&pdev
->dev
, clk_name
);
2478 if (IS_ERR(r8a66597
->clk
)) {
2479 dev_err(&pdev
->dev
, "cannot get clock \"%s\"\n",
2481 ret
= PTR_ERR(r8a66597
->clk
);
2485 r8a66597
->max_root_hub
= 1;
2487 r8a66597
->max_root_hub
= 2;
2489 spin_lock_init(&r8a66597
->lock
);
2490 init_timer(&r8a66597
->rh_timer
);
2491 r8a66597
->rh_timer
.function
= r8a66597_timer
;
2492 r8a66597
->rh_timer
.data
= (unsigned long)r8a66597
;
2493 r8a66597
->reg
= (unsigned long)reg
;
2495 /* make sure no interrupts are pending */
2496 ret
= r8a66597_clock_enable(r8a66597
);
2499 disable_controller(r8a66597
);
2501 for (i
= 0; i
< R8A66597_MAX_NUM_PIPE
; i
++) {
2502 INIT_LIST_HEAD(&r8a66597
->pipe_queue
[i
]);
2503 init_timer(&r8a66597
->td_timer
[i
]);
2504 r8a66597
->td_timer
[i
].function
= r8a66597_td_timer
;
2505 r8a66597
->td_timer
[i
].data
= (unsigned long)r8a66597
;
2506 setup_timer(&r8a66597
->interval_timer
[i
],
2507 r8a66597_interval_timer
,
2508 (unsigned long)r8a66597
);
2510 INIT_LIST_HEAD(&r8a66597
->child_device
);
2512 hcd
->rsrc_start
= res
->start
;
2514 ret
= usb_add_hcd(hcd
, irq
, IRQF_DISABLED
| irq_trigger
);
2516 dev_err(&pdev
->dev
, "Failed to add hcd\n");
2523 #ifdef CONFIG_HAVE_CLK
2524 if (r8a66597
->pdata
->on_chip
)
2525 clk_put(r8a66597
->clk
);
2537 static struct platform_driver r8a66597_driver
= {
2538 .probe
= r8a66597_probe
,
2539 .remove
= r8a66597_remove
,
2541 .name
= (char *) hcd_name
,
2542 .owner
= THIS_MODULE
,
2543 .pm
= R8A66597_DEV_PM_OPS
,
2547 static int __init
r8a66597_init(void)
2552 printk(KERN_INFO KBUILD_MODNAME
": driver %s, %s\n", hcd_name
,
2554 return platform_driver_register(&r8a66597_driver
);
2556 module_init(r8a66597_init
);
2558 static void __exit
r8a66597_cleanup(void)
2560 platform_driver_unregister(&r8a66597_driver
);
2562 module_exit(r8a66597_cleanup
);