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/smp_lock.h>
30 #include <linux/errno.h>
31 #include <linux/init.h>
32 #include <linux/timer.h>
33 #include <linux/delay.h>
34 #include <linux/list.h>
35 #include <linux/interrupt.h>
36 #include <linux/usb.h>
37 #include <linux/platform_device.h>
39 #include <linux/irq.h>
41 #include "../core/hcd.h"
44 MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
45 MODULE_LICENSE("GPL");
46 MODULE_AUTHOR("Yoshihiro Shimoda");
47 MODULE_ALIAS("platform:r8a66597_hcd");
49 #define DRIVER_VERSION "2009-05-26"
51 static const char hcd_name
[] = "r8a66597_hcd";
53 static void packet_write(struct r8a66597
*r8a66597
, u16 pipenum
);
54 static int r8a66597_get_frame(struct usb_hcd
*hcd
);
56 /* this function must be called with interrupt disabled */
57 static void enable_pipe_irq(struct r8a66597
*r8a66597
, u16 pipenum
,
62 tmp
= r8a66597_read(r8a66597
, INTENB0
);
63 r8a66597_bclr(r8a66597
, BEMPE
| NRDYE
| BRDYE
, INTENB0
);
64 r8a66597_bset(r8a66597
, 1 << pipenum
, reg
);
65 r8a66597_write(r8a66597
, tmp
, INTENB0
);
68 /* this function must be called with interrupt disabled */
69 static void disable_pipe_irq(struct r8a66597
*r8a66597
, u16 pipenum
,
74 tmp
= r8a66597_read(r8a66597
, INTENB0
);
75 r8a66597_bclr(r8a66597
, BEMPE
| NRDYE
| BRDYE
, INTENB0
);
76 r8a66597_bclr(r8a66597
, 1 << pipenum
, reg
);
77 r8a66597_write(r8a66597
, tmp
, INTENB0
);
80 static void set_devadd_reg(struct r8a66597
*r8a66597
, u8 r8a66597_address
,
81 u16 usbspd
, u8 upphub
, u8 hubport
, int port
)
84 unsigned long devadd_reg
= get_devadd_addr(r8a66597_address
);
86 val
= (upphub
<< 11) | (hubport
<< 8) | (usbspd
<< 6) | (port
& 0x0001);
87 r8a66597_write(r8a66597
, val
, devadd_reg
);
90 static int r8a66597_clock_enable(struct r8a66597
*r8a66597
)
95 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
96 #if defined(CONFIG_HAVE_CLK)
97 clk_enable(r8a66597
->clk
);
100 r8a66597_write(r8a66597
, SCKE
, SYSCFG0
);
101 tmp
= r8a66597_read(r8a66597
, SYSCFG0
);
103 printk(KERN_ERR
"r8a66597: register access fail.\n");
106 } while ((tmp
& SCKE
) != SCKE
);
107 r8a66597_write(r8a66597
, 0x04, 0x02);
110 r8a66597_write(r8a66597
, USBE
, SYSCFG0
);
111 tmp
= r8a66597_read(r8a66597
, SYSCFG0
);
113 printk(KERN_ERR
"r8a66597: register access fail.\n");
116 } while ((tmp
& USBE
) != USBE
);
117 r8a66597_bclr(r8a66597
, USBE
, SYSCFG0
);
118 r8a66597_mdfy(r8a66597
, get_xtal_from_pdata(r8a66597
->pdata
), XTAL
,
122 r8a66597_bset(r8a66597
, XCKE
, SYSCFG0
);
125 tmp
= r8a66597_read(r8a66597
, SYSCFG0
);
127 printk(KERN_ERR
"r8a66597: register access fail.\n");
130 } while ((tmp
& SCKE
) != SCKE
);
131 #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
136 static void r8a66597_clock_disable(struct r8a66597
*r8a66597
)
138 r8a66597_bclr(r8a66597
, SCKE
, SYSCFG0
);
140 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
141 #if defined(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(char *devpath
, u16
*root_port
, u16
*hub_port
)
256 *root_port
= (devpath
[0] & 0x0F) - 1;
257 if (*root_port
>= R8A66597_MAX_ROOT_HUB
)
258 printk(KERN_ERR
"r8a66597: Illegal root port number.\n");
261 *hub_port
= devpath
[2] & 0x0F;
264 static u16
get_r8a66597_usb_speed(enum usb_device_speed speed
)
279 printk(KERN_ERR
"r8a66597: unknown speed\n");
286 static void set_child_connect_map(struct r8a66597
*r8a66597
, int address
)
291 r8a66597
->child_connect_map
[idx
] |= 1 << (address
% 32);
294 static void put_child_connect_map(struct r8a66597
*r8a66597
, int address
)
299 r8a66597
->child_connect_map
[idx
] &= ~(1 << (address
% 32));
302 static void set_pipe_reg_addr(struct r8a66597_pipe
*pipe
, u8 dma_ch
)
304 u16 pipenum
= pipe
->info
.pipenum
;
305 const unsigned long fifoaddr
[] = {D0FIFO
, D1FIFO
, CFIFO
};
306 const unsigned long fifosel
[] = {D0FIFOSEL
, D1FIFOSEL
, CFIFOSEL
};
307 const unsigned long fifoctr
[] = {D0FIFOCTR
, D1FIFOCTR
, CFIFOCTR
};
309 if (dma_ch
> R8A66597_PIPE_NO_DMA
) /* dma fifo not use? */
310 dma_ch
= R8A66597_PIPE_NO_DMA
;
312 pipe
->fifoaddr
= fifoaddr
[dma_ch
];
313 pipe
->fifosel
= fifosel
[dma_ch
];
314 pipe
->fifoctr
= fifoctr
[dma_ch
];
317 pipe
->pipectr
= DCPCTR
;
319 pipe
->pipectr
= get_pipectr_addr(pipenum
);
321 if (check_bulk_or_isoc(pipenum
)) {
322 pipe
->pipetre
= get_pipetre_addr(pipenum
);
323 pipe
->pipetrn
= get_pipetrn_addr(pipenum
);
330 static struct r8a66597_device
*
331 get_urb_to_r8a66597_dev(struct r8a66597
*r8a66597
, struct urb
*urb
)
333 if (usb_pipedevice(urb
->pipe
) == 0)
334 return &r8a66597
->device0
;
336 return dev_get_drvdata(&urb
->dev
->dev
);
339 static int make_r8a66597_device(struct r8a66597
*r8a66597
,
340 struct urb
*urb
, u8 addr
)
342 struct r8a66597_device
*dev
;
343 int usb_address
= urb
->setup_packet
[2]; /* urb->pipe is address 0 */
345 dev
= kzalloc(sizeof(struct r8a66597_device
), GFP_ATOMIC
);
349 dev_set_drvdata(&urb
->dev
->dev
, dev
);
350 dev
->udev
= urb
->dev
;
352 dev
->usb_address
= usb_address
;
353 dev
->state
= USB_STATE_ADDRESS
;
354 dev
->ep_in_toggle
= 0;
355 dev
->ep_out_toggle
= 0;
356 INIT_LIST_HEAD(&dev
->device_list
);
357 list_add_tail(&dev
->device_list
, &r8a66597
->child_device
);
359 get_port_number(urb
->dev
->devpath
, &dev
->root_port
, &dev
->hub_port
);
360 if (!is_child_device(urb
->dev
->devpath
))
361 r8a66597
->root_hub
[dev
->root_port
].dev
= dev
;
363 set_devadd_reg(r8a66597
, dev
->address
,
364 get_r8a66597_usb_speed(urb
->dev
->speed
),
365 get_parent_r8a66597_address(r8a66597
, urb
->dev
),
366 dev
->hub_port
, dev
->root_port
);
371 /* this function must be called with interrupt disabled */
372 static u8
alloc_usb_address(struct r8a66597
*r8a66597
, struct urb
*urb
)
374 u8 addr
; /* R8A66597's address */
375 struct r8a66597_device
*dev
;
377 if (is_hub_limit(urb
->dev
->devpath
)) {
378 dev_err(&urb
->dev
->dev
, "External hub limit reached.\n");
382 dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
383 if (dev
&& dev
->state
>= USB_STATE_ADDRESS
)
386 for (addr
= 1; addr
<= R8A66597_MAX_DEVICE
; addr
++) {
387 if (r8a66597
->address_map
& (1 << addr
))
390 dbg("alloc_address: r8a66597_addr=%d", addr
);
391 r8a66597
->address_map
|= 1 << addr
;
393 if (make_r8a66597_device(r8a66597
, urb
, addr
) < 0)
399 dev_err(&urb
->dev
->dev
,
400 "cannot communicate with a USB device more than 10.(%x)\n",
401 r8a66597
->address_map
);
406 /* this function must be called with interrupt disabled */
407 static void free_usb_address(struct r8a66597
*r8a66597
,
408 struct r8a66597_device
*dev
)
415 dbg("free_addr: addr=%d", dev
->address
);
417 dev
->state
= USB_STATE_DEFAULT
;
418 r8a66597
->address_map
&= ~(1 << dev
->address
);
420 dev_set_drvdata(&dev
->udev
->dev
, NULL
);
421 list_del(&dev
->device_list
);
424 for (port
= 0; port
< R8A66597_MAX_ROOT_HUB
; port
++) {
425 if (r8a66597
->root_hub
[port
].dev
== dev
) {
426 r8a66597
->root_hub
[port
].dev
= NULL
;
432 static void r8a66597_reg_wait(struct r8a66597
*r8a66597
, unsigned long reg
,
439 tmp
= r8a66597_read(r8a66597
, reg
);
441 printk(KERN_ERR
"r8a66597: register%lx, loop %x "
442 "is timeout\n", reg
, loop
);
446 } while ((tmp
& mask
) != loop
);
449 /* this function must be called with interrupt disabled */
450 static void pipe_start(struct r8a66597
*r8a66597
, struct r8a66597_pipe
*pipe
)
454 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
) & PID
;
455 if ((pipe
->info
.pipenum
!= 0) & ((tmp
& PID_STALL
) != 0)) /* stall? */
456 r8a66597_mdfy(r8a66597
, PID_NAK
, PID
, pipe
->pipectr
);
457 r8a66597_mdfy(r8a66597
, PID_BUF
, PID
, pipe
->pipectr
);
460 /* this function must be called with interrupt disabled */
461 static void pipe_stop(struct r8a66597
*r8a66597
, struct r8a66597_pipe
*pipe
)
465 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
) & PID
;
466 if ((tmp
& PID_STALL11
) != PID_STALL11
) /* force stall? */
467 r8a66597_mdfy(r8a66597
, PID_STALL
, PID
, pipe
->pipectr
);
468 r8a66597_mdfy(r8a66597
, PID_NAK
, PID
, pipe
->pipectr
);
469 r8a66597_reg_wait(r8a66597
, pipe
->pipectr
, PBUSY
, 0);
472 /* this function must be called with interrupt disabled */
473 static void clear_all_buffer(struct r8a66597
*r8a66597
,
474 struct r8a66597_pipe
*pipe
)
478 if (!pipe
|| pipe
->info
.pipenum
== 0)
481 pipe_stop(r8a66597
, pipe
);
482 r8a66597_bset(r8a66597
, ACLRM
, pipe
->pipectr
);
483 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
484 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
485 tmp
= r8a66597_read(r8a66597
, pipe
->pipectr
);
486 r8a66597_bclr(r8a66597
, ACLRM
, pipe
->pipectr
);
489 /* this function must be called with interrupt disabled */
490 static void r8a66597_pipe_toggle(struct r8a66597
*r8a66597
,
491 struct r8a66597_pipe
*pipe
, int toggle
)
494 r8a66597_bset(r8a66597
, SQSET
, pipe
->pipectr
);
496 r8a66597_bset(r8a66597
, SQCLR
, pipe
->pipectr
);
499 /* this function must be called with interrupt disabled */
500 static inline void cfifo_change(struct r8a66597
*r8a66597
, u16 pipenum
)
502 r8a66597_mdfy(r8a66597
, MBW
| pipenum
, MBW
| CURPIPE
, CFIFOSEL
);
503 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, pipenum
);
506 /* this function must be called with interrupt disabled */
507 static inline void fifo_change_from_pipe(struct r8a66597
*r8a66597
,
508 struct r8a66597_pipe
*pipe
)
510 cfifo_change(r8a66597
, 0);
511 r8a66597_mdfy(r8a66597
, MBW
| 0, MBW
| CURPIPE
, D0FIFOSEL
);
512 r8a66597_mdfy(r8a66597
, MBW
| 0, MBW
| CURPIPE
, D1FIFOSEL
);
514 r8a66597_mdfy(r8a66597
, MBW
| pipe
->info
.pipenum
, MBW
| CURPIPE
,
516 r8a66597_reg_wait(r8a66597
, pipe
->fifosel
, CURPIPE
, pipe
->info
.pipenum
);
519 static u16
r8a66597_get_pipenum(struct urb
*urb
, struct usb_host_endpoint
*hep
)
521 struct r8a66597_pipe
*pipe
= hep
->hcpriv
;
523 if (usb_pipeendpoint(urb
->pipe
) == 0)
526 return pipe
->info
.pipenum
;
529 static u16
get_urb_to_r8a66597_addr(struct r8a66597
*r8a66597
, struct urb
*urb
)
531 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
533 return (usb_pipedevice(urb
->pipe
) == 0) ? 0 : dev
->address
;
536 static unsigned short *get_toggle_pointer(struct r8a66597_device
*dev
,
542 return usb_pipein(urb_pipe
) ? &dev
->ep_in_toggle
: &dev
->ep_out_toggle
;
545 /* this function must be called with interrupt disabled */
546 static void pipe_toggle_set(struct r8a66597
*r8a66597
,
547 struct r8a66597_pipe
*pipe
,
548 struct urb
*urb
, int set
)
550 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
551 unsigned char endpoint
= usb_pipeendpoint(urb
->pipe
);
552 unsigned short *toggle
= get_toggle_pointer(dev
, urb
->pipe
);
558 *toggle
|= 1 << endpoint
;
560 *toggle
&= ~(1 << endpoint
);
563 /* this function must be called with interrupt disabled */
564 static void pipe_toggle_save(struct r8a66597
*r8a66597
,
565 struct r8a66597_pipe
*pipe
,
568 if (r8a66597_read(r8a66597
, pipe
->pipectr
) & SQMON
)
569 pipe_toggle_set(r8a66597
, pipe
, urb
, 1);
571 pipe_toggle_set(r8a66597
, pipe
, urb
, 0);
574 /* this function must be called with interrupt disabled */
575 static void pipe_toggle_restore(struct r8a66597
*r8a66597
,
576 struct r8a66597_pipe
*pipe
,
579 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
580 unsigned char endpoint
= usb_pipeendpoint(urb
->pipe
);
581 unsigned short *toggle
= get_toggle_pointer(dev
, urb
->pipe
);
586 r8a66597_pipe_toggle(r8a66597
, pipe
, *toggle
& (1 << endpoint
));
589 /* this function must be called with interrupt disabled */
590 static void pipe_buffer_setting(struct r8a66597
*r8a66597
,
591 struct r8a66597_pipe_info
*info
)
595 if (info
->pipenum
== 0)
598 r8a66597_bset(r8a66597
, ACLRM
, get_pipectr_addr(info
->pipenum
));
599 r8a66597_bclr(r8a66597
, ACLRM
, get_pipectr_addr(info
->pipenum
));
600 r8a66597_write(r8a66597
, info
->pipenum
, PIPESEL
);
603 if (info
->type
== R8A66597_BULK
&& info
->dir_in
)
604 val
|= R8A66597_DBLB
| R8A66597_SHTNAK
;
605 val
|= info
->type
| info
->epnum
;
606 r8a66597_write(r8a66597
, val
, PIPECFG
);
608 r8a66597_write(r8a66597
, (info
->buf_bsize
<< 10) | (info
->bufnum
),
610 r8a66597_write(r8a66597
, make_devsel(info
->address
) | info
->maxpacket
,
612 r8a66597_write(r8a66597
, info
->interval
, PIPEPERI
);
615 /* this function must be called with interrupt disabled */
616 static void pipe_setting(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
618 struct r8a66597_pipe_info
*info
;
619 struct urb
*urb
= td
->urb
;
621 if (td
->pipenum
> 0) {
622 info
= &td
->pipe
->info
;
623 cfifo_change(r8a66597
, 0);
624 pipe_buffer_setting(r8a66597
, info
);
626 if (!usb_gettoggle(urb
->dev
, usb_pipeendpoint(urb
->pipe
),
627 usb_pipeout(urb
->pipe
)) &&
628 !usb_pipecontrol(urb
->pipe
)) {
629 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 0);
630 pipe_toggle_set(r8a66597
, td
->pipe
, urb
, 0);
631 clear_all_buffer(r8a66597
, td
->pipe
);
632 usb_settoggle(urb
->dev
, usb_pipeendpoint(urb
->pipe
),
633 usb_pipeout(urb
->pipe
), 1);
635 pipe_toggle_restore(r8a66597
, td
->pipe
, urb
);
639 /* this function must be called with interrupt disabled */
640 static u16
get_empty_pipenum(struct r8a66597
*r8a66597
,
641 struct usb_endpoint_descriptor
*ep
)
643 u16 array
[R8A66597_MAX_NUM_PIPE
], i
= 0, min
;
645 memset(array
, 0, sizeof(array
));
646 switch (usb_endpoint_type(ep
)) {
647 case USB_ENDPOINT_XFER_BULK
:
648 if (usb_endpoint_dir_in(ep
))
655 case USB_ENDPOINT_XFER_INT
:
656 if (usb_endpoint_dir_in(ep
)) {
663 case USB_ENDPOINT_XFER_ISOC
:
664 if (usb_endpoint_dir_in(ep
))
670 printk(KERN_ERR
"r8a66597: Illegal type\n");
676 while (array
[i
] != 0) {
677 if (r8a66597
->pipe_cnt
[min
] > r8a66597
->pipe_cnt
[array
[i
]])
685 static u16
get_r8a66597_type(__u8 type
)
690 case USB_ENDPOINT_XFER_BULK
:
691 r8a66597_type
= R8A66597_BULK
;
693 case USB_ENDPOINT_XFER_INT
:
694 r8a66597_type
= R8A66597_INT
;
696 case USB_ENDPOINT_XFER_ISOC
:
697 r8a66597_type
= R8A66597_ISO
;
700 printk(KERN_ERR
"r8a66597: Illegal type\n");
701 r8a66597_type
= 0x0000;
705 return r8a66597_type
;
708 static u16
get_bufnum(u16 pipenum
)
714 else if (check_bulk_or_isoc(pipenum
))
715 bufnum
= 8 + (pipenum
- 1) * R8A66597_BUF_BSIZE
*2;
716 else if (check_interrupt(pipenum
))
717 bufnum
= 4 + (pipenum
- 6);
719 printk(KERN_ERR
"r8a66597: Illegal pipenum (%d)\n", pipenum
);
724 static u16
get_buf_bsize(u16 pipenum
)
730 else if (check_bulk_or_isoc(pipenum
))
731 buf_bsize
= R8A66597_BUF_BSIZE
- 1;
732 else if (check_interrupt(pipenum
))
735 printk(KERN_ERR
"r8a66597: Illegal pipenum (%d)\n", pipenum
);
740 /* this function must be called with interrupt disabled */
741 static void enable_r8a66597_pipe_dma(struct r8a66597
*r8a66597
,
742 struct r8a66597_device
*dev
,
743 struct r8a66597_pipe
*pipe
,
746 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
748 struct r8a66597_pipe_info
*info
= &pipe
->info
;
750 if ((pipe
->info
.pipenum
!= 0) && (info
->type
!= R8A66597_INT
)) {
751 for (i
= 0; i
< R8A66597_MAX_DMA_CHANNEL
; i
++) {
752 if ((r8a66597
->dma_map
& (1 << i
)) != 0)
755 dev_info(&dev
->udev
->dev
,
756 "address %d, EndpointAddress 0x%02x use "
757 "DMA FIFO\n", usb_pipedevice(urb
->pipe
),
759 USB_ENDPOINT_DIR_MASK
+ info
->epnum
762 r8a66597
->dma_map
|= 1 << i
;
763 dev
->dma_map
|= 1 << i
;
764 set_pipe_reg_addr(pipe
, i
);
766 cfifo_change(r8a66597
, 0);
767 r8a66597_mdfy(r8a66597
, MBW
| pipe
->info
.pipenum
,
768 MBW
| CURPIPE
, pipe
->fifosel
);
770 r8a66597_reg_wait(r8a66597
, pipe
->fifosel
, CURPIPE
,
772 r8a66597_bset(r8a66597
, BCLR
, pipe
->fifoctr
);
776 #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
779 /* this function must be called with interrupt disabled */
780 static void enable_r8a66597_pipe(struct r8a66597
*r8a66597
, struct urb
*urb
,
781 struct usb_host_endpoint
*hep
,
782 struct r8a66597_pipe_info
*info
)
784 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
785 struct r8a66597_pipe
*pipe
= hep
->hcpriv
;
790 set_pipe_reg_addr(pipe
, R8A66597_PIPE_NO_DMA
);
791 r8a66597
->pipe_cnt
[pipe
->info
.pipenum
]++;
792 dev
->pipe_cnt
[pipe
->info
.pipenum
]++;
794 enable_r8a66597_pipe_dma(r8a66597
, dev
, pipe
, urb
);
797 /* this function must be called with interrupt disabled */
798 static void force_dequeue(struct r8a66597
*r8a66597
, u16 pipenum
, u16 address
)
800 struct r8a66597_td
*td
, *next
;
802 struct list_head
*list
= &r8a66597
->pipe_queue
[pipenum
];
804 if (list_empty(list
))
807 list_for_each_entry_safe(td
, next
, list
, queue
) {
810 if (td
->address
!= address
)
814 list_del(&td
->queue
);
818 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597
),
821 spin_unlock(&r8a66597
->lock
);
822 usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597
), urb
,
824 spin_lock(&r8a66597
->lock
);
830 /* this function must be called with interrupt disabled */
831 static void disable_r8a66597_pipe_all(struct r8a66597
*r8a66597
,
832 struct r8a66597_device
*dev
)
840 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
841 if (!dev
->pipe_cnt
[pipenum
])
846 force_dequeue(r8a66597
, 0, dev
->address
);
849 r8a66597
->pipe_cnt
[pipenum
] -= dev
->pipe_cnt
[pipenum
];
850 dev
->pipe_cnt
[pipenum
] = 0;
851 force_dequeue(r8a66597
, pipenum
, dev
->address
);
856 r8a66597
->dma_map
&= ~(dev
->dma_map
);
860 static u16
get_interval(struct urb
*urb
, __u8 interval
)
865 if (urb
->dev
->speed
== USB_SPEED_HIGH
) {
869 time
= interval
? interval
- 1 : 0;
871 if (interval
> 128) {
874 /* calculate the nearest value for PIPEPERI */
875 for (i
= 0; i
< 7; i
++) {
876 if ((1 << i
) < interval
&&
877 (1 << (i
+ 1) > interval
))
886 static unsigned long get_timer_interval(struct urb
*urb
, __u8 interval
)
889 unsigned long time
= 1;
891 if (usb_pipeisoc(urb
->pipe
))
894 if (get_r8a66597_usb_speed(urb
->dev
->speed
) == HSMODE
) {
895 for (i
= 0; i
< (interval
- 1); i
++)
897 time
= time
* 125 / 1000; /* uSOF -> msec */
905 /* this function must be called with interrupt disabled */
906 static void init_pipe_info(struct r8a66597
*r8a66597
, struct urb
*urb
,
907 struct usb_host_endpoint
*hep
,
908 struct usb_endpoint_descriptor
*ep
)
910 struct r8a66597_pipe_info info
;
912 info
.pipenum
= get_empty_pipenum(r8a66597
, ep
);
913 info
.address
= get_urb_to_r8a66597_addr(r8a66597
, urb
);
914 info
.epnum
= usb_endpoint_num(ep
);
915 info
.maxpacket
= le16_to_cpu(ep
->wMaxPacketSize
);
916 info
.type
= get_r8a66597_type(usb_endpoint_type(ep
));
917 info
.bufnum
= get_bufnum(info
.pipenum
);
918 info
.buf_bsize
= get_buf_bsize(info
.pipenum
);
919 if (info
.type
== R8A66597_BULK
) {
921 info
.timer_interval
= 0;
923 info
.interval
= get_interval(urb
, ep
->bInterval
);
924 info
.timer_interval
= get_timer_interval(urb
, ep
->bInterval
);
926 if (usb_endpoint_dir_in(ep
))
931 enable_r8a66597_pipe(r8a66597
, urb
, hep
, &info
);
934 static void init_pipe_config(struct r8a66597
*r8a66597
, struct urb
*urb
)
936 struct r8a66597_device
*dev
;
938 dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
939 dev
->state
= USB_STATE_CONFIGURED
;
942 static void pipe_irq_enable(struct r8a66597
*r8a66597
, struct urb
*urb
,
945 if (pipenum
== 0 && usb_pipeout(urb
->pipe
))
946 enable_irq_empty(r8a66597
, pipenum
);
948 enable_irq_ready(r8a66597
, pipenum
);
950 if (!usb_pipeisoc(urb
->pipe
))
951 enable_irq_nrdy(r8a66597
, pipenum
);
954 static void pipe_irq_disable(struct r8a66597
*r8a66597
, u16 pipenum
)
956 disable_irq_ready(r8a66597
, pipenum
);
957 disable_irq_nrdy(r8a66597
, pipenum
);
960 static void r8a66597_root_hub_start_polling(struct r8a66597
*r8a66597
)
962 mod_timer(&r8a66597
->rh_timer
,
963 jiffies
+ msecs_to_jiffies(R8A66597_RH_POLL_TIME
));
966 static void start_root_hub_sampling(struct r8a66597
*r8a66597
, int port
,
969 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
971 rh
->old_syssts
= r8a66597_read(r8a66597
, get_syssts_reg(port
)) & LNST
;
972 rh
->scount
= R8A66597_MAX_SAMPLING
;
974 rh
->port
|= 1 << USB_PORT_FEAT_CONNECTION
;
976 rh
->port
&= ~(1 << USB_PORT_FEAT_CONNECTION
);
977 rh
->port
|= 1 << USB_PORT_FEAT_C_CONNECTION
;
979 r8a66597_root_hub_start_polling(r8a66597
);
982 /* this function must be called with interrupt disabled */
983 static void r8a66597_check_syssts(struct r8a66597
*r8a66597
, int port
,
987 r8a66597_write(r8a66597
, ~ATTCH
, get_intsts_reg(port
));
988 r8a66597_bset(r8a66597
, ATTCHE
, get_intenb_reg(port
));
992 if (syssts
== FS_JSTS
)
993 r8a66597_bset(r8a66597
, HSE
, get_syscfg_reg(port
));
994 else if (syssts
== LS_JSTS
)
995 r8a66597_bclr(r8a66597
, HSE
, get_syscfg_reg(port
));
997 r8a66597_write(r8a66597
, ~DTCH
, get_intsts_reg(port
));
998 r8a66597_bset(r8a66597
, DTCHE
, get_intenb_reg(port
));
1000 if (r8a66597
->bus_suspended
)
1001 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1004 /* this function must be called with interrupt disabled */
1005 static void r8a66597_usb_connect(struct r8a66597
*r8a66597
, int port
)
1007 u16 speed
= get_rh_usb_speed(r8a66597
, port
);
1008 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
1010 if (speed
== HSMODE
)
1011 rh
->port
|= (1 << USB_PORT_FEAT_HIGHSPEED
);
1012 else if (speed
== LSMODE
)
1013 rh
->port
|= (1 << USB_PORT_FEAT_LOWSPEED
);
1015 rh
->port
&= ~(1 << USB_PORT_FEAT_RESET
);
1016 rh
->port
|= 1 << USB_PORT_FEAT_ENABLE
;
1019 /* this function must be called with interrupt disabled */
1020 static void r8a66597_usb_disconnect(struct r8a66597
*r8a66597
, int port
)
1022 struct r8a66597_device
*dev
= r8a66597
->root_hub
[port
].dev
;
1024 disable_r8a66597_pipe_all(r8a66597
, dev
);
1025 free_usb_address(r8a66597
, dev
);
1027 start_root_hub_sampling(r8a66597
, port
, 0);
1030 /* this function must be called with interrupt disabled */
1031 static void prepare_setup_packet(struct r8a66597
*r8a66597
,
1032 struct r8a66597_td
*td
)
1035 __le16
*p
= (__le16
*)td
->urb
->setup_packet
;
1036 unsigned long setup_addr
= USBREQ
;
1038 r8a66597_write(r8a66597
, make_devsel(td
->address
) | td
->maxpacket
,
1040 r8a66597_write(r8a66597
, ~(SIGN
| SACK
), INTSTS1
);
1042 for (i
= 0; i
< 4; i
++) {
1043 r8a66597_write(r8a66597
, le16_to_cpu(p
[i
]), setup_addr
);
1046 r8a66597_write(r8a66597
, SUREQ
, DCPCTR
);
1049 /* this function must be called with interrupt disabled */
1050 static void prepare_packet_read(struct r8a66597
*r8a66597
,
1051 struct r8a66597_td
*td
)
1053 struct urb
*urb
= td
->urb
;
1055 if (usb_pipecontrol(urb
->pipe
)) {
1056 r8a66597_bclr(r8a66597
, R8A66597_DIR
, DCPCFG
);
1057 r8a66597_mdfy(r8a66597
, 0, ISEL
| CURPIPE
, CFIFOSEL
);
1058 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1059 if (urb
->actual_length
== 0) {
1060 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1061 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1063 pipe_irq_disable(r8a66597
, td
->pipenum
);
1064 pipe_start(r8a66597
, td
->pipe
);
1065 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1067 if (urb
->actual_length
== 0) {
1068 pipe_irq_disable(r8a66597
, td
->pipenum
);
1069 pipe_setting(r8a66597
, td
);
1070 pipe_stop(r8a66597
, td
->pipe
);
1071 r8a66597_write(r8a66597
, ~(1 << td
->pipenum
), BRDYSTS
);
1073 if (td
->pipe
->pipetre
) {
1074 r8a66597_write(r8a66597
, TRCLR
,
1076 r8a66597_write(r8a66597
,
1078 (urb
->transfer_buffer_length
,
1081 r8a66597_bset(r8a66597
, TRENB
,
1085 pipe_start(r8a66597
, td
->pipe
);
1086 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1091 /* this function must be called with interrupt disabled */
1092 static void prepare_packet_write(struct r8a66597
*r8a66597
,
1093 struct r8a66597_td
*td
)
1096 struct urb
*urb
= td
->urb
;
1098 if (usb_pipecontrol(urb
->pipe
)) {
1099 pipe_stop(r8a66597
, td
->pipe
);
1100 r8a66597_bset(r8a66597
, R8A66597_DIR
, DCPCFG
);
1101 r8a66597_mdfy(r8a66597
, ISEL
, ISEL
| CURPIPE
, CFIFOSEL
);
1102 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1103 if (urb
->actual_length
== 0) {
1104 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1105 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1108 if (urb
->actual_length
== 0)
1109 pipe_setting(r8a66597
, td
);
1110 if (td
->pipe
->pipetre
)
1111 r8a66597_bclr(r8a66597
, TRENB
, td
->pipe
->pipetre
);
1113 r8a66597_write(r8a66597
, ~(1 << td
->pipenum
), BRDYSTS
);
1115 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1116 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1117 if (unlikely((tmp
& FRDY
) == 0))
1118 pipe_irq_enable(r8a66597
, urb
, td
->pipenum
);
1120 packet_write(r8a66597
, td
->pipenum
);
1121 pipe_start(r8a66597
, td
->pipe
);
1124 /* this function must be called with interrupt disabled */
1125 static void prepare_status_packet(struct r8a66597
*r8a66597
,
1126 struct r8a66597_td
*td
)
1128 struct urb
*urb
= td
->urb
;
1130 r8a66597_pipe_toggle(r8a66597
, td
->pipe
, 1);
1131 pipe_stop(r8a66597
, td
->pipe
);
1133 if (urb
->setup_packet
[0] & USB_ENDPOINT_DIR_MASK
) {
1134 r8a66597_bset(r8a66597
, R8A66597_DIR
, DCPCFG
);
1135 r8a66597_mdfy(r8a66597
, ISEL
, ISEL
| CURPIPE
, CFIFOSEL
);
1136 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1137 r8a66597_write(r8a66597
, ~BEMP0
, BEMPSTS
);
1138 r8a66597_write(r8a66597
, BCLR
| BVAL
, CFIFOCTR
);
1139 enable_irq_empty(r8a66597
, 0);
1141 r8a66597_bclr(r8a66597
, R8A66597_DIR
, DCPCFG
);
1142 r8a66597_mdfy(r8a66597
, 0, ISEL
| CURPIPE
, CFIFOSEL
);
1143 r8a66597_reg_wait(r8a66597
, CFIFOSEL
, CURPIPE
, 0);
1144 r8a66597_write(r8a66597
, BCLR
, CFIFOCTR
);
1145 enable_irq_ready(r8a66597
, 0);
1147 enable_irq_nrdy(r8a66597
, 0);
1148 pipe_start(r8a66597
, td
->pipe
);
1151 static int is_set_address(unsigned char *setup_packet
)
1153 if (((setup_packet
[0] & USB_TYPE_MASK
) == USB_TYPE_STANDARD
) &&
1154 setup_packet
[1] == USB_REQ_SET_ADDRESS
)
1160 /* this function must be called with interrupt disabled */
1161 static int start_transfer(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
1167 if (is_set_address(td
->urb
->setup_packet
)) {
1168 td
->set_address
= 1;
1169 td
->urb
->setup_packet
[2] = alloc_usb_address(r8a66597
,
1171 if (td
->urb
->setup_packet
[2] == 0)
1174 prepare_setup_packet(r8a66597
, td
);
1177 prepare_packet_read(r8a66597
, td
);
1180 prepare_packet_write(r8a66597
, td
);
1183 prepare_status_packet(r8a66597
, td
);
1186 printk(KERN_ERR
"r8a66597: invalid type.\n");
1193 static int check_transfer_finish(struct r8a66597_td
*td
, struct urb
*urb
)
1195 if (usb_pipeisoc(urb
->pipe
)) {
1196 if (urb
->number_of_packets
== td
->iso_cnt
)
1200 /* control or bulk or interrupt */
1201 if ((urb
->transfer_buffer_length
<= urb
->actual_length
) ||
1202 (td
->short_packet
) || (td
->zero_packet
))
1208 /* this function must be called with interrupt disabled */
1209 static void set_td_timer(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
)
1215 if (!list_empty(&r8a66597
->pipe_queue
[td
->pipenum
]) &&
1216 !usb_pipecontrol(td
->urb
->pipe
) && usb_pipein(td
->urb
->pipe
)) {
1217 r8a66597
->timeout_map
|= 1 << td
->pipenum
;
1218 switch (usb_pipetype(td
->urb
->pipe
)) {
1219 case PIPE_INTERRUPT
:
1220 case PIPE_ISOCHRONOUS
:
1228 mod_timer(&r8a66597
->td_timer
[td
->pipenum
],
1229 jiffies
+ msecs_to_jiffies(time
));
1233 /* this function must be called with interrupt disabled */
1234 static void finish_request(struct r8a66597
*r8a66597
, struct r8a66597_td
*td
,
1235 u16 pipenum
, struct urb
*urb
, int status
)
1236 __releases(r8a66597
->lock
) __acquires(r8a66597
->lock
)
1239 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
1241 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1244 if (td
->set_address
&& (status
!= 0 || urb
->unlinked
))
1245 r8a66597
->address_map
&= ~(1 << urb
->setup_packet
[2]);
1247 pipe_toggle_save(r8a66597
, td
->pipe
, urb
);
1248 list_del(&td
->queue
);
1252 if (!list_empty(&r8a66597
->pipe_queue
[pipenum
]))
1256 if (usb_pipeisoc(urb
->pipe
))
1257 urb
->start_frame
= r8a66597_get_frame(hcd
);
1259 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597
), urb
);
1260 spin_unlock(&r8a66597
->lock
);
1261 usb_hcd_giveback_urb(hcd
, urb
, status
);
1262 spin_lock(&r8a66597
->lock
);
1266 td
= r8a66597_get_td(r8a66597
, pipenum
);
1270 start_transfer(r8a66597
, td
);
1271 set_td_timer(r8a66597
, td
);
1275 static void packet_read(struct r8a66597
*r8a66597
, u16 pipenum
)
1278 int rcv_len
, bufsize
, urb_len
, size
;
1280 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1289 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1290 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1291 if (unlikely((tmp
& FRDY
) == 0)) {
1292 pipe_stop(r8a66597
, td
->pipe
);
1293 pipe_irq_disable(r8a66597
, pipenum
);
1294 printk(KERN_ERR
"r8a66597: in fifo not ready (%d)\n", pipenum
);
1295 finish_request(r8a66597
, td
, pipenum
, td
->urb
, -EPIPE
);
1299 /* prepare parameters */
1300 rcv_len
= tmp
& DTLN
;
1301 if (usb_pipeisoc(urb
->pipe
)) {
1302 buf
= (u16
*)(urb
->transfer_buffer
+
1303 urb
->iso_frame_desc
[td
->iso_cnt
].offset
);
1304 urb_len
= urb
->iso_frame_desc
[td
->iso_cnt
].length
;
1306 buf
= (void *)urb
->transfer_buffer
+ urb
->actual_length
;
1307 urb_len
= urb
->transfer_buffer_length
- urb
->actual_length
;
1309 bufsize
= min(urb_len
, (int) td
->maxpacket
);
1310 if (rcv_len
<= bufsize
) {
1314 status
= -EOVERFLOW
;
1318 /* update parameters */
1319 urb
->actual_length
+= size
;
1321 td
->zero_packet
= 1;
1322 if (rcv_len
< bufsize
) {
1323 td
->short_packet
= 1;
1325 if (usb_pipeisoc(urb
->pipe
)) {
1326 urb
->iso_frame_desc
[td
->iso_cnt
].actual_length
= size
;
1327 urb
->iso_frame_desc
[td
->iso_cnt
].status
= status
;
1332 /* check transfer finish */
1333 if (finish
|| check_transfer_finish(td
, urb
)) {
1334 pipe_stop(r8a66597
, td
->pipe
);
1335 pipe_irq_disable(r8a66597
, pipenum
);
1340 if (urb
->transfer_buffer
) {
1342 r8a66597_write(r8a66597
, BCLR
, td
->pipe
->fifoctr
);
1344 r8a66597_read_fifo(r8a66597
, td
->pipe
->fifoaddr
,
1348 if (finish
&& pipenum
!= 0)
1349 finish_request(r8a66597
, td
, pipenum
, urb
, status
);
1352 static void packet_write(struct r8a66597
*r8a66597
, u16 pipenum
)
1357 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1364 fifo_change_from_pipe(r8a66597
, td
->pipe
);
1365 tmp
= r8a66597_read(r8a66597
, td
->pipe
->fifoctr
);
1366 if (unlikely((tmp
& FRDY
) == 0)) {
1367 pipe_stop(r8a66597
, td
->pipe
);
1368 pipe_irq_disable(r8a66597
, pipenum
);
1369 printk(KERN_ERR
"r8a66597: out fifo not ready (%d)\n", pipenum
);
1370 finish_request(r8a66597
, td
, pipenum
, urb
, -EPIPE
);
1374 /* prepare parameters */
1375 bufsize
= td
->maxpacket
;
1376 if (usb_pipeisoc(urb
->pipe
)) {
1377 buf
= (u16
*)(urb
->transfer_buffer
+
1378 urb
->iso_frame_desc
[td
->iso_cnt
].offset
);
1380 (int)urb
->iso_frame_desc
[td
->iso_cnt
].length
);
1382 buf
= (u16
*)(urb
->transfer_buffer
+ urb
->actual_length
);
1383 size
= min_t(u32
, bufsize
,
1384 urb
->transfer_buffer_length
- urb
->actual_length
);
1389 r8a66597_write(r8a66597
, ~(1 << pipenum
), BEMPSTS
);
1390 if (urb
->transfer_buffer
) {
1391 r8a66597_write_fifo(r8a66597
, td
->pipe
->fifoaddr
, buf
, size
);
1392 if (!usb_pipebulk(urb
->pipe
) || td
->maxpacket
!= size
)
1393 r8a66597_write(r8a66597
, BVAL
, td
->pipe
->fifoctr
);
1396 /* update parameters */
1397 urb
->actual_length
+= size
;
1398 if (usb_pipeisoc(urb
->pipe
)) {
1399 urb
->iso_frame_desc
[td
->iso_cnt
].actual_length
= size
;
1400 urb
->iso_frame_desc
[td
->iso_cnt
].status
= 0;
1404 /* check transfer finish */
1405 if (check_transfer_finish(td
, urb
)) {
1406 disable_irq_ready(r8a66597
, pipenum
);
1407 enable_irq_empty(r8a66597
, pipenum
);
1408 if (!usb_pipeisoc(urb
->pipe
))
1409 enable_irq_nrdy(r8a66597
, pipenum
);
1411 pipe_irq_enable(r8a66597
, urb
, pipenum
);
1415 static void check_next_phase(struct r8a66597
*r8a66597
, int status
)
1417 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, 0);
1428 if (check_transfer_finish(td
, urb
))
1429 td
->type
= USB_PID_ACK
;
1432 if (urb
->transfer_buffer_length
== urb
->actual_length
)
1433 td
->type
= USB_PID_ACK
;
1434 else if (usb_pipeout(urb
->pipe
))
1435 td
->type
= USB_PID_OUT
;
1437 td
->type
= USB_PID_IN
;
1444 if (finish
|| status
!= 0 || urb
->unlinked
)
1445 finish_request(r8a66597
, td
, 0, urb
, status
);
1447 start_transfer(r8a66597
, td
);
1450 static int get_urb_error(struct r8a66597
*r8a66597
, u16 pipenum
)
1452 struct r8a66597_td
*td
= r8a66597_get_td(r8a66597
, pipenum
);
1455 u16 pid
= r8a66597_read(r8a66597
, td
->pipe
->pipectr
) & PID
;
1465 static void irq_pipe_ready(struct r8a66597
*r8a66597
)
1470 struct r8a66597_td
*td
;
1472 mask
= r8a66597_read(r8a66597
, BRDYSTS
)
1473 & r8a66597_read(r8a66597
, BRDYENB
);
1474 r8a66597_write(r8a66597
, ~mask
, BRDYSTS
);
1476 td
= r8a66597_get_td(r8a66597
, 0);
1477 if (td
&& td
->type
== USB_PID_IN
)
1478 packet_read(r8a66597
, 0);
1480 pipe_irq_disable(r8a66597
, 0);
1481 check_next_phase(r8a66597
, 0);
1484 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1485 check
= 1 << pipenum
;
1487 td
= r8a66597_get_td(r8a66597
, pipenum
);
1491 if (td
->type
== USB_PID_IN
)
1492 packet_read(r8a66597
, pipenum
);
1493 else if (td
->type
== USB_PID_OUT
)
1494 packet_write(r8a66597
, pipenum
);
1499 static void irq_pipe_empty(struct r8a66597
*r8a66597
)
1505 struct r8a66597_td
*td
;
1507 mask
= r8a66597_read(r8a66597
, BEMPSTS
)
1508 & r8a66597_read(r8a66597
, BEMPENB
);
1509 r8a66597_write(r8a66597
, ~mask
, BEMPSTS
);
1511 cfifo_change(r8a66597
, 0);
1512 td
= r8a66597_get_td(r8a66597
, 0);
1513 if (td
&& td
->type
!= USB_PID_OUT
)
1514 disable_irq_empty(r8a66597
, 0);
1515 check_next_phase(r8a66597
, 0);
1518 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1519 check
= 1 << pipenum
;
1521 struct r8a66597_td
*td
;
1522 td
= r8a66597_get_td(r8a66597
, pipenum
);
1526 tmp
= r8a66597_read(r8a66597
, td
->pipe
->pipectr
);
1527 if ((tmp
& INBUFM
) == 0) {
1528 disable_irq_empty(r8a66597
, pipenum
);
1529 pipe_irq_disable(r8a66597
, pipenum
);
1530 finish_request(r8a66597
, td
, pipenum
, td
->urb
,
1537 static void irq_pipe_nrdy(struct r8a66597
*r8a66597
)
1544 mask
= r8a66597_read(r8a66597
, NRDYSTS
)
1545 & r8a66597_read(r8a66597
, NRDYENB
);
1546 r8a66597_write(r8a66597
, ~mask
, NRDYSTS
);
1548 cfifo_change(r8a66597
, 0);
1549 status
= get_urb_error(r8a66597
, 0);
1550 pipe_irq_disable(r8a66597
, 0);
1551 check_next_phase(r8a66597
, status
);
1554 for (pipenum
= 1; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1555 check
= 1 << pipenum
;
1557 struct r8a66597_td
*td
;
1558 td
= r8a66597_get_td(r8a66597
, pipenum
);
1562 status
= get_urb_error(r8a66597
, pipenum
);
1563 pipe_irq_disable(r8a66597
, pipenum
);
1564 pipe_stop(r8a66597
, td
->pipe
);
1565 finish_request(r8a66597
, td
, pipenum
, td
->urb
, status
);
1570 static irqreturn_t
r8a66597_irq(struct usb_hcd
*hcd
)
1572 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1573 u16 intsts0
, intsts1
, intsts2
;
1574 u16 intenb0
, intenb1
, intenb2
;
1575 u16 mask0
, mask1
, mask2
;
1578 spin_lock(&r8a66597
->lock
);
1580 intsts0
= r8a66597_read(r8a66597
, INTSTS0
);
1581 intsts1
= r8a66597_read(r8a66597
, INTSTS1
);
1582 intsts2
= r8a66597_read(r8a66597
, INTSTS2
);
1583 intenb0
= r8a66597_read(r8a66597
, INTENB0
);
1584 intenb1
= r8a66597_read(r8a66597
, INTENB1
);
1585 intenb2
= r8a66597_read(r8a66597
, INTENB2
);
1587 mask2
= intsts2
& intenb2
;
1588 mask1
= intsts1
& intenb1
;
1589 mask0
= intsts0
& intenb0
& (BEMP
| NRDY
| BRDY
);
1591 if (mask2
& ATTCH
) {
1592 r8a66597_write(r8a66597
, ~ATTCH
, INTSTS2
);
1593 r8a66597_bclr(r8a66597
, ATTCHE
, INTENB2
);
1595 /* start usb bus sampling */
1596 start_root_hub_sampling(r8a66597
, 1, 1);
1599 r8a66597_write(r8a66597
, ~DTCH
, INTSTS2
);
1600 r8a66597_bclr(r8a66597
, DTCHE
, INTENB2
);
1601 r8a66597_usb_disconnect(r8a66597
, 1);
1604 r8a66597_write(r8a66597
, ~BCHG
, INTSTS2
);
1605 r8a66597_bclr(r8a66597
, BCHGE
, INTENB2
);
1606 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1611 if (mask1
& ATTCH
) {
1612 r8a66597_write(r8a66597
, ~ATTCH
, INTSTS1
);
1613 r8a66597_bclr(r8a66597
, ATTCHE
, INTENB1
);
1615 /* start usb bus sampling */
1616 start_root_hub_sampling(r8a66597
, 0, 1);
1619 r8a66597_write(r8a66597
, ~DTCH
, INTSTS1
);
1620 r8a66597_bclr(r8a66597
, DTCHE
, INTENB1
);
1621 r8a66597_usb_disconnect(r8a66597
, 0);
1624 r8a66597_write(r8a66597
, ~BCHG
, INTSTS1
);
1625 r8a66597_bclr(r8a66597
, BCHGE
, INTENB1
);
1626 usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597
));
1630 r8a66597_write(r8a66597
, ~SIGN
, INTSTS1
);
1631 status
= get_urb_error(r8a66597
, 0);
1632 check_next_phase(r8a66597
, status
);
1635 r8a66597_write(r8a66597
, ~SACK
, INTSTS1
);
1636 check_next_phase(r8a66597
, 0);
1641 irq_pipe_ready(r8a66597
);
1643 irq_pipe_empty(r8a66597
);
1645 irq_pipe_nrdy(r8a66597
);
1648 spin_unlock(&r8a66597
->lock
);
1652 /* this function must be called with interrupt disabled */
1653 static void r8a66597_root_hub_control(struct r8a66597
*r8a66597
, int port
)
1656 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
1658 if (rh
->port
& (1 << USB_PORT_FEAT_RESET
)) {
1659 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
1661 tmp
= r8a66597_read(r8a66597
, dvstctr_reg
);
1662 if ((tmp
& USBRST
) == USBRST
) {
1663 r8a66597_mdfy(r8a66597
, UACT
, USBRST
| UACT
,
1665 r8a66597_root_hub_start_polling(r8a66597
);
1667 r8a66597_usb_connect(r8a66597
, port
);
1670 if (!(rh
->port
& (1 << USB_PORT_FEAT_CONNECTION
))) {
1671 r8a66597_write(r8a66597
, ~ATTCH
, get_intsts_reg(port
));
1672 r8a66597_bset(r8a66597
, ATTCHE
, get_intenb_reg(port
));
1675 if (rh
->scount
> 0) {
1676 tmp
= r8a66597_read(r8a66597
, get_syssts_reg(port
)) & LNST
;
1677 if (tmp
== rh
->old_syssts
) {
1679 if (rh
->scount
== 0)
1680 r8a66597_check_syssts(r8a66597
, port
, tmp
);
1682 r8a66597_root_hub_start_polling(r8a66597
);
1684 rh
->scount
= R8A66597_MAX_SAMPLING
;
1685 rh
->old_syssts
= tmp
;
1686 r8a66597_root_hub_start_polling(r8a66597
);
1691 static void r8a66597_interval_timer(unsigned long _r8a66597
)
1693 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1694 unsigned long flags
;
1696 struct r8a66597_td
*td
;
1698 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1700 for (pipenum
= 0; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1701 if (!(r8a66597
->interval_map
& (1 << pipenum
)))
1703 if (timer_pending(&r8a66597
->interval_timer
[pipenum
]))
1706 td
= r8a66597_get_td(r8a66597
, pipenum
);
1708 start_transfer(r8a66597
, td
);
1711 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1714 static void r8a66597_td_timer(unsigned long _r8a66597
)
1716 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1717 unsigned long flags
;
1719 struct r8a66597_td
*td
, *new_td
= NULL
;
1720 struct r8a66597_pipe
*pipe
;
1722 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1723 for (pipenum
= 0; pipenum
< R8A66597_MAX_NUM_PIPE
; pipenum
++) {
1724 if (!(r8a66597
->timeout_map
& (1 << pipenum
)))
1726 if (timer_pending(&r8a66597
->td_timer
[pipenum
]))
1729 td
= r8a66597_get_td(r8a66597
, pipenum
);
1731 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1735 if (td
->urb
->actual_length
) {
1736 set_td_timer(r8a66597
, td
);
1741 pipe_stop(r8a66597
, pipe
);
1745 list_move_tail(&new_td
->queue
,
1746 &r8a66597
->pipe_queue
[pipenum
]);
1747 new_td
= r8a66597_get_td(r8a66597
, pipenum
);
1752 } while (td
!= new_td
&& td
->address
== new_td
->address
);
1754 start_transfer(r8a66597
, new_td
);
1757 r8a66597
->timeout_map
&= ~(1 << pipenum
);
1759 set_td_timer(r8a66597
, new_td
);
1762 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1765 static void r8a66597_timer(unsigned long _r8a66597
)
1767 struct r8a66597
*r8a66597
= (struct r8a66597
*)_r8a66597
;
1768 unsigned long flags
;
1771 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1773 for (port
= 0; port
< R8A66597_MAX_ROOT_HUB
; port
++)
1774 r8a66597_root_hub_control(r8a66597
, port
);
1776 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1779 static int check_pipe_config(struct r8a66597
*r8a66597
, struct urb
*urb
)
1781 struct r8a66597_device
*dev
= get_urb_to_r8a66597_dev(r8a66597
, urb
);
1783 if (dev
&& dev
->address
&& dev
->state
!= USB_STATE_CONFIGURED
&&
1784 (urb
->dev
->state
== USB_STATE_CONFIGURED
))
1790 static int r8a66597_start(struct usb_hcd
*hcd
)
1792 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1794 hcd
->state
= HC_STATE_RUNNING
;
1795 return enable_controller(r8a66597
);
1798 static void r8a66597_stop(struct usb_hcd
*hcd
)
1800 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1802 disable_controller(r8a66597
);
1805 static void set_address_zero(struct r8a66597
*r8a66597
, struct urb
*urb
)
1807 unsigned int usb_address
= usb_pipedevice(urb
->pipe
);
1808 u16 root_port
, hub_port
;
1810 if (usb_address
== 0) {
1811 get_port_number(urb
->dev
->devpath
,
1812 &root_port
, &hub_port
);
1813 set_devadd_reg(r8a66597
, 0,
1814 get_r8a66597_usb_speed(urb
->dev
->speed
),
1815 get_parent_r8a66597_address(r8a66597
, urb
->dev
),
1816 hub_port
, root_port
);
1820 static struct r8a66597_td
*r8a66597_make_td(struct r8a66597
*r8a66597
,
1822 struct usb_host_endpoint
*hep
)
1824 struct r8a66597_td
*td
;
1827 td
= kzalloc(sizeof(struct r8a66597_td
), GFP_ATOMIC
);
1831 pipenum
= r8a66597_get_pipenum(urb
, hep
);
1832 td
->pipenum
= pipenum
;
1833 td
->pipe
= hep
->hcpriv
;
1835 td
->address
= get_urb_to_r8a66597_addr(r8a66597
, urb
);
1836 td
->maxpacket
= usb_maxpacket(urb
->dev
, urb
->pipe
,
1837 !usb_pipein(urb
->pipe
));
1838 if (usb_pipecontrol(urb
->pipe
))
1839 td
->type
= USB_PID_SETUP
;
1840 else if (usb_pipein(urb
->pipe
))
1841 td
->type
= USB_PID_IN
;
1843 td
->type
= USB_PID_OUT
;
1844 INIT_LIST_HEAD(&td
->queue
);
1849 static int r8a66597_urb_enqueue(struct usb_hcd
*hcd
,
1853 struct usb_host_endpoint
*hep
= urb
->ep
;
1854 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1855 struct r8a66597_td
*td
= NULL
;
1856 int ret
, request
= 0;
1857 unsigned long flags
;
1859 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1860 if (!get_urb_to_r8a66597_dev(r8a66597
, urb
)) {
1862 goto error_not_linked
;
1865 ret
= usb_hcd_link_urb_to_ep(hcd
, urb
);
1867 goto error_not_linked
;
1870 hep
->hcpriv
= kzalloc(sizeof(struct r8a66597_pipe
),
1876 set_pipe_reg_addr(hep
->hcpriv
, R8A66597_PIPE_NO_DMA
);
1877 if (usb_pipeendpoint(urb
->pipe
))
1878 init_pipe_info(r8a66597
, urb
, hep
, &hep
->desc
);
1881 if (unlikely(check_pipe_config(r8a66597
, urb
)))
1882 init_pipe_config(r8a66597
, urb
);
1884 set_address_zero(r8a66597
, urb
);
1885 td
= r8a66597_make_td(r8a66597
, urb
, hep
);
1890 if (list_empty(&r8a66597
->pipe_queue
[td
->pipenum
]))
1892 list_add_tail(&td
->queue
, &r8a66597
->pipe_queue
[td
->pipenum
]);
1896 if (td
->pipe
->info
.timer_interval
) {
1897 r8a66597
->interval_map
|= 1 << td
->pipenum
;
1898 mod_timer(&r8a66597
->interval_timer
[td
->pipenum
],
1899 jiffies
+ msecs_to_jiffies(
1900 td
->pipe
->info
.timer_interval
));
1902 ret
= start_transfer(r8a66597
, td
);
1904 list_del(&td
->queue
);
1909 set_td_timer(r8a66597
, td
);
1913 usb_hcd_unlink_urb_from_ep(hcd
, urb
);
1915 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1919 static int r8a66597_urb_dequeue(struct usb_hcd
*hcd
, struct urb
*urb
,
1922 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1923 struct r8a66597_td
*td
;
1924 unsigned long flags
;
1927 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1928 rc
= usb_hcd_check_unlink_urb(hcd
, urb
, status
);
1934 pipe_stop(r8a66597
, td
->pipe
);
1935 pipe_irq_disable(r8a66597
, td
->pipenum
);
1936 disable_irq_empty(r8a66597
, td
->pipenum
);
1937 finish_request(r8a66597
, td
, td
->pipenum
, urb
, status
);
1940 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1944 static void r8a66597_endpoint_disable(struct usb_hcd
*hcd
,
1945 struct usb_host_endpoint
*hep
)
1947 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1948 struct r8a66597_pipe
*pipe
= (struct r8a66597_pipe
*)hep
->hcpriv
;
1949 struct r8a66597_td
*td
;
1950 struct urb
*urb
= NULL
;
1952 unsigned long flags
;
1956 pipenum
= pipe
->info
.pipenum
;
1964 spin_lock_irqsave(&r8a66597
->lock
, flags
);
1965 pipe_stop(r8a66597
, pipe
);
1966 pipe_irq_disable(r8a66597
, pipenum
);
1967 disable_irq_empty(r8a66597
, pipenum
);
1968 td
= r8a66597_get_td(r8a66597
, pipenum
);
1971 finish_request(r8a66597
, td
, pipenum
, urb
, -ESHUTDOWN
);
1974 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
1977 static int r8a66597_get_frame(struct usb_hcd
*hcd
)
1979 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
1980 return r8a66597_read(r8a66597
, FRMNUM
) & 0x03FF;
1983 static void collect_usb_address_map(struct usb_device
*udev
, unsigned long *map
)
1987 if (udev
->state
== USB_STATE_CONFIGURED
&&
1988 udev
->parent
&& udev
->parent
->devnum
> 1 &&
1989 udev
->parent
->descriptor
.bDeviceClass
== USB_CLASS_HUB
)
1990 map
[udev
->devnum
/32] |= (1 << (udev
->devnum
% 32));
1992 for (chix
= 0; chix
< udev
->maxchild
; chix
++) {
1993 struct usb_device
*childdev
= udev
->children
[chix
];
1996 collect_usb_address_map(childdev
, map
);
2000 /* this function must be called with interrupt disabled */
2001 static struct r8a66597_device
*get_r8a66597_device(struct r8a66597
*r8a66597
,
2004 struct r8a66597_device
*dev
;
2005 struct list_head
*list
= &r8a66597
->child_device
;
2007 list_for_each_entry(dev
, list
, device_list
) {
2010 if (dev
->usb_address
!= addr
)
2016 printk(KERN_ERR
"r8a66597: get_r8a66597_device fail.(%d)\n", addr
);
2020 static void update_usb_address_map(struct r8a66597
*r8a66597
,
2021 struct usb_device
*root_hub
,
2026 unsigned long flags
;
2028 for (i
= 0; i
< 4; i
++) {
2029 diff
= r8a66597
->child_connect_map
[i
] ^ map
[i
];
2033 for (j
= 0; j
< 32; j
++) {
2034 if (!(diff
& (1 << j
)))
2038 if (map
[i
] & (1 << j
))
2039 set_child_connect_map(r8a66597
, addr
);
2041 struct r8a66597_device
*dev
;
2043 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2044 dev
= get_r8a66597_device(r8a66597
, addr
);
2045 disable_r8a66597_pipe_all(r8a66597
, dev
);
2046 free_usb_address(r8a66597
, dev
);
2047 put_child_connect_map(r8a66597
, addr
);
2048 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2054 static void r8a66597_check_detect_child(struct r8a66597
*r8a66597
,
2055 struct usb_hcd
*hcd
)
2057 struct usb_bus
*bus
;
2058 unsigned long now_map
[4];
2060 memset(now_map
, 0, sizeof(now_map
));
2062 list_for_each_entry(bus
, &usb_bus_list
, bus_list
) {
2066 if (bus
->busnum
!= hcd
->self
.busnum
)
2069 collect_usb_address_map(bus
->root_hub
, now_map
);
2070 update_usb_address_map(r8a66597
, bus
->root_hub
, now_map
);
2074 static int r8a66597_hub_status_data(struct usb_hcd
*hcd
, char *buf
)
2076 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2077 unsigned long flags
;
2080 r8a66597_check_detect_child(r8a66597
, hcd
);
2082 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2084 *buf
= 0; /* initialize (no change) */
2086 for (i
= 0; i
< R8A66597_MAX_ROOT_HUB
; i
++) {
2087 if (r8a66597
->root_hub
[i
].port
& 0xffff0000)
2088 *buf
|= 1 << (i
+ 1);
2091 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2096 static void r8a66597_hub_descriptor(struct r8a66597
*r8a66597
,
2097 struct usb_hub_descriptor
*desc
)
2099 desc
->bDescriptorType
= 0x29;
2100 desc
->bHubContrCurrent
= 0;
2101 desc
->bNbrPorts
= R8A66597_MAX_ROOT_HUB
;
2102 desc
->bDescLength
= 9;
2103 desc
->bPwrOn2PwrGood
= 0;
2104 desc
->wHubCharacteristics
= cpu_to_le16(0x0011);
2105 desc
->bitmap
[0] = ((1 << R8A66597_MAX_ROOT_HUB
) - 1) << 1;
2106 desc
->bitmap
[1] = ~0;
2109 static int r8a66597_hub_control(struct usb_hcd
*hcd
, u16 typeReq
, u16 wValue
,
2110 u16 wIndex
, char *buf
, u16 wLength
)
2112 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2114 int port
= (wIndex
& 0x00FF) - 1;
2115 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2116 unsigned long flags
;
2120 spin_lock_irqsave(&r8a66597
->lock
, flags
);
2122 case ClearHubFeature
:
2125 case C_HUB_OVER_CURRENT
:
2126 case C_HUB_LOCAL_POWER
:
2132 case ClearPortFeature
:
2133 if (wIndex
> R8A66597_MAX_ROOT_HUB
)
2139 case USB_PORT_FEAT_ENABLE
:
2140 rh
->port
&= ~(1 << USB_PORT_FEAT_POWER
);
2142 case USB_PORT_FEAT_SUSPEND
:
2144 case USB_PORT_FEAT_POWER
:
2145 r8a66597_port_power(r8a66597
, port
, 0);
2147 case USB_PORT_FEAT_C_ENABLE
:
2148 case USB_PORT_FEAT_C_SUSPEND
:
2149 case USB_PORT_FEAT_C_CONNECTION
:
2150 case USB_PORT_FEAT_C_OVER_CURRENT
:
2151 case USB_PORT_FEAT_C_RESET
:
2156 rh
->port
&= ~(1 << wValue
);
2158 case GetHubDescriptor
:
2159 r8a66597_hub_descriptor(r8a66597
,
2160 (struct usb_hub_descriptor
*)buf
);
2166 if (wIndex
> R8A66597_MAX_ROOT_HUB
)
2168 *(__le32
*)buf
= cpu_to_le32(rh
->port
);
2170 case SetPortFeature
:
2171 if (wIndex
> R8A66597_MAX_ROOT_HUB
)
2177 case USB_PORT_FEAT_SUSPEND
:
2179 case USB_PORT_FEAT_POWER
:
2180 r8a66597_port_power(r8a66597
, port
, 1);
2181 rh
->port
|= (1 << USB_PORT_FEAT_POWER
);
2183 case USB_PORT_FEAT_RESET
: {
2184 struct r8a66597_device
*dev
= rh
->dev
;
2186 rh
->port
|= (1 << USB_PORT_FEAT_RESET
);
2188 disable_r8a66597_pipe_all(r8a66597
, dev
);
2189 free_usb_address(r8a66597
, dev
);
2191 r8a66597_mdfy(r8a66597
, USBRST
, USBRST
| UACT
,
2192 get_dvstctr_reg(port
));
2193 mod_timer(&r8a66597
->rh_timer
,
2194 jiffies
+ msecs_to_jiffies(50));
2200 rh
->port
|= 1 << wValue
;
2208 spin_unlock_irqrestore(&r8a66597
->lock
, flags
);
2212 #if defined(CONFIG_PM)
2213 static int r8a66597_bus_suspend(struct usb_hcd
*hcd
)
2215 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2218 dbg("%s", __func__
);
2220 for (port
= 0; port
< R8A66597_MAX_ROOT_HUB
; port
++) {
2221 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2222 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
2224 if (!(rh
->port
& (1 << USB_PORT_FEAT_ENABLE
)))
2227 dbg("suspend port = %d", port
);
2228 r8a66597_bclr(r8a66597
, UACT
, dvstctr_reg
); /* suspend */
2229 rh
->port
|= 1 << USB_PORT_FEAT_SUSPEND
;
2231 if (rh
->dev
->udev
->do_remote_wakeup
) {
2232 msleep(3); /* waiting last SOF */
2233 r8a66597_bset(r8a66597
, RWUPE
, dvstctr_reg
);
2234 r8a66597_write(r8a66597
, ~BCHG
, get_intsts_reg(port
));
2235 r8a66597_bset(r8a66597
, BCHGE
, get_intenb_reg(port
));
2239 r8a66597
->bus_suspended
= 1;
2244 static int r8a66597_bus_resume(struct usb_hcd
*hcd
)
2246 struct r8a66597
*r8a66597
= hcd_to_r8a66597(hcd
);
2249 dbg("%s", __func__
);
2251 for (port
= 0; port
< R8A66597_MAX_ROOT_HUB
; port
++) {
2252 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2253 unsigned long dvstctr_reg
= get_dvstctr_reg(port
);
2255 if (!(rh
->port
& (1 << USB_PORT_FEAT_SUSPEND
)))
2258 dbg("resume port = %d", port
);
2259 rh
->port
&= ~(1 << USB_PORT_FEAT_SUSPEND
);
2260 rh
->port
|= 1 << USB_PORT_FEAT_C_SUSPEND
;
2261 r8a66597_mdfy(r8a66597
, RESUME
, RESUME
| UACT
, dvstctr_reg
);
2263 r8a66597_mdfy(r8a66597
, UACT
, RESUME
| UACT
, dvstctr_reg
);
2270 #define r8a66597_bus_suspend NULL
2271 #define r8a66597_bus_resume NULL
2274 static struct hc_driver r8a66597_hc_driver
= {
2275 .description
= hcd_name
,
2276 .hcd_priv_size
= sizeof(struct r8a66597
),
2277 .irq
= r8a66597_irq
,
2280 * generic hardware linkage
2284 .start
= r8a66597_start
,
2285 .stop
= r8a66597_stop
,
2288 * managing i/o requests and associated device resources
2290 .urb_enqueue
= r8a66597_urb_enqueue
,
2291 .urb_dequeue
= r8a66597_urb_dequeue
,
2292 .endpoint_disable
= r8a66597_endpoint_disable
,
2295 * periodic schedule support
2297 .get_frame_number
= r8a66597_get_frame
,
2302 .hub_status_data
= r8a66597_hub_status_data
,
2303 .hub_control
= r8a66597_hub_control
,
2304 .bus_suspend
= r8a66597_bus_suspend
,
2305 .bus_resume
= r8a66597_bus_resume
,
2308 #if defined(CONFIG_PM)
2309 static int r8a66597_suspend(struct platform_device
*pdev
, pm_message_t state
)
2311 struct r8a66597
*r8a66597
= dev_get_drvdata(&pdev
->dev
);
2314 dbg("%s", __func__
);
2316 disable_controller(r8a66597
);
2318 for (port
= 0; port
< R8A66597_MAX_ROOT_HUB
; port
++) {
2319 struct r8a66597_root_hub
*rh
= &r8a66597
->root_hub
[port
];
2321 rh
->port
= 0x00000000;
2327 static int r8a66597_resume(struct platform_device
*pdev
)
2329 struct r8a66597
*r8a66597
= dev_get_drvdata(&pdev
->dev
);
2330 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
2332 dbg("%s", __func__
);
2334 enable_controller(r8a66597
);
2335 usb_root_hub_lost_power(hcd
->self
.root_hub
);
2339 #else /* if defined(CONFIG_PM) */
2340 #define r8a66597_suspend NULL
2341 #define r8a66597_resume NULL
2344 static int __init_or_module
r8a66597_remove(struct platform_device
*pdev
)
2346 struct r8a66597
*r8a66597
= dev_get_drvdata(&pdev
->dev
);
2347 struct usb_hcd
*hcd
= r8a66597_to_hcd(r8a66597
);
2349 del_timer_sync(&r8a66597
->rh_timer
);
2350 usb_remove_hcd(hcd
);
2351 iounmap((void *)r8a66597
->reg
);
2352 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
2353 clk_put(r8a66597
->clk
);
2359 static int __devinit
r8a66597_probe(struct platform_device
*pdev
)
2361 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
2364 struct resource
*res
= NULL
, *ires
;
2366 void __iomem
*reg
= NULL
;
2367 struct usb_hcd
*hcd
= NULL
;
2368 struct r8a66597
*r8a66597
;
2371 unsigned long irq_trigger
;
2373 if (pdev
->dev
.dma_mask
) {
2375 dev_err(&pdev
->dev
, "dma not supported\n");
2379 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
2382 dev_err(&pdev
->dev
, "platform_get_resource error.\n");
2386 ires
= platform_get_resource(pdev
, IORESOURCE_IRQ
, 0);
2390 "platform_get_resource IORESOURCE_IRQ error.\n");
2395 irq_trigger
= ires
->flags
& IRQF_TRIGGER_MASK
;
2397 reg
= ioremap(res
->start
, resource_size(res
));
2400 dev_err(&pdev
->dev
, "ioremap error.\n");
2404 if (pdev
->dev
.platform_data
== NULL
) {
2405 dev_err(&pdev
->dev
, "no platform data\n");
2410 /* initialize hcd */
2411 hcd
= usb_create_hcd(&r8a66597_hc_driver
, &pdev
->dev
, (char *)hcd_name
);
2414 dev_err(&pdev
->dev
, "Failed to create hcd\n");
2417 r8a66597
= hcd_to_r8a66597(hcd
);
2418 memset(r8a66597
, 0, sizeof(struct r8a66597
));
2419 dev_set_drvdata(&pdev
->dev
, r8a66597
);
2420 r8a66597
->pdata
= pdev
->dev
.platform_data
;
2421 r8a66597
->irq_sense_low
= irq_trigger
== IRQF_TRIGGER_LOW
;
2423 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
2424 snprintf(clk_name
, sizeof(clk_name
), "usb%d", pdev
->id
);
2425 r8a66597
->clk
= clk_get(&pdev
->dev
, clk_name
);
2426 if (IS_ERR(r8a66597
->clk
)) {
2427 dev_err(&pdev
->dev
, "cannot get clock \"%s\"\n", clk_name
);
2428 ret
= PTR_ERR(r8a66597
->clk
);
2433 spin_lock_init(&r8a66597
->lock
);
2434 init_timer(&r8a66597
->rh_timer
);
2435 r8a66597
->rh_timer
.function
= r8a66597_timer
;
2436 r8a66597
->rh_timer
.data
= (unsigned long)r8a66597
;
2437 r8a66597
->reg
= (unsigned long)reg
;
2439 for (i
= 0; i
< R8A66597_MAX_NUM_PIPE
; i
++) {
2440 INIT_LIST_HEAD(&r8a66597
->pipe_queue
[i
]);
2441 init_timer(&r8a66597
->td_timer
[i
]);
2442 r8a66597
->td_timer
[i
].function
= r8a66597_td_timer
;
2443 r8a66597
->td_timer
[i
].data
= (unsigned long)r8a66597
;
2444 setup_timer(&r8a66597
->interval_timer
[i
],
2445 r8a66597_interval_timer
,
2446 (unsigned long)r8a66597
);
2448 INIT_LIST_HEAD(&r8a66597
->child_device
);
2450 hcd
->rsrc_start
= res
->start
;
2452 ret
= usb_add_hcd(hcd
, irq
, IRQF_DISABLED
| irq_trigger
);
2454 dev_err(&pdev
->dev
, "Failed to add hcd\n");
2461 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK)
2462 clk_put(r8a66597
->clk
);
2474 static struct platform_driver r8a66597_driver
= {
2475 .probe
= r8a66597_probe
,
2476 .remove
= r8a66597_remove
,
2477 .suspend
= r8a66597_suspend
,
2478 .resume
= r8a66597_resume
,
2480 .name
= (char *) hcd_name
,
2481 .owner
= THIS_MODULE
,
2485 static int __init
r8a66597_init(void)
2490 printk(KERN_INFO KBUILD_MODNAME
": driver %s, %s\n", hcd_name
,
2492 return platform_driver_register(&r8a66597_driver
);
2494 module_init(r8a66597_init
);
2496 static void __exit
r8a66597_cleanup(void)
2498 platform_driver_unregister(&r8a66597_driver
);
2500 module_exit(r8a66597_cleanup
);