2 * Host Controller Driver for the Elan Digital Systems U132 adapter
4 * Copyright(C) 2006 Elan Digital Systems Limited
5 * http://www.elandigitalsystems.com
7 * Author and Maintainer - Tony Olech - Elan Digital Systems
8 * tony.olech@elandigitalsystems.com
10 * This program is free software;you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation, version 2.
15 * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
16 * based on various USB host drivers in the 2.6.15 linux kernel
17 * with constant reference to the 3rd Edition of Linux Device Drivers
18 * published by O'Reilly
20 * The U132 adapter is a USB to CardBus adapter specifically designed
21 * for PC cards that contain an OHCI host controller. Typical PC cards
22 * are the Orange Mobile 3G Option GlobeTrotter Fusion card.
24 * The U132 adapter will *NOT *work with PC cards that do not contain
25 * an OHCI controller. A simple way to test whether a PC card has an
26 * OHCI controller as an interface is to insert the PC card directly
27 * into a laptop(or desktop) with a CardBus slot and if "lspci" shows
28 * a new USB controller and "lsusb -v" shows a new OHCI Host Controller
29 * then there is a good chance that the U132 adapter will support the
30 * PC card.(you also need the specific client driver for the PC card)
32 * Please inform the Author and Maintainer about any PC cards that
33 * contain OHCI Host Controller and work when directly connected to
34 * an embedded CardBus slot but do not work when they are connected
35 * via an ELAN U132 adapter.
38 #include <linux/kernel.h>
39 #include <linux/module.h>
40 #include <linux/moduleparam.h>
41 #include <linux/delay.h>
42 #include <linux/ioport.h>
43 #include <linux/sched.h>
44 #include <linux/slab.h>
45 #include <linux/smp_lock.h>
46 #include <linux/errno.h>
47 #include <linux/init.h>
48 #include <linux/timer.h>
49 #include <linux/list.h>
50 #include <linux/interrupt.h>
51 #include <linux/usb.h>
52 #include <linux/workqueue.h>
53 #include <linux/platform_device.h>
54 #include <linux/pci_ids.h>
57 #include <asm/system.h>
58 #include <asm/byteorder.h>
59 #include "../core/hcd.h"
61 #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
62 #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
64 MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
65 MODULE_DESCRIPTION("U132 USB Host Controller Driver");
66 MODULE_LICENSE("GPL");
67 #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
68 INT_MODULE_PARM(testing, 0);
69 /* Some boards misreport power switching/overcurrent*/
70 static int distrust_firmware = 1;
71 module_param(distrust_firmware, bool, 0);
72 MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
74 static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
76 * u132_module_lock exists to protect access to global variables
79 static struct semaphore u132_module_lock;
80 static int u132_exiting = 0;
81 static int u132_instances = 0;
82 static struct list_head u132_static_list;
84 * end of the global variables protected by u132_module_lock
86 static struct workqueue_struct *workqueue;
87 #define MAX_U132_PORTS 7
88 #define MAX_U132_ADDRS 128
89 #define MAX_U132_UDEVS 4
90 #define MAX_U132_ENDPS 100
91 #define MAX_U132_RINGS 4
92 static const char *cc_to_text[16] = {
122 struct usb_device *usb_device;
127 u8 endp_number_in[16];
128 u8 endp_number_out[16];
130 #define ENDP_QUEUE_SHIFT 3
131 #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
132 #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
134 struct list_head urb_more;
147 struct list_head endp_ring;
148 struct u132_ring *ring;
149 unsigned toggle_bits:2;
155 unsigned dequeueing:1;
156 unsigned edset_flush:1;
157 unsigned spare_bits:14;
158 unsigned long jiffies;
159 struct usb_host_endpoint *hep;
160 struct u132_spin queue_lock;
164 struct urb *urb_list[ENDP_QUEUE_SIZE];
165 struct list_head urb_more;
166 struct delayed_work scheduler;
173 struct u132_endp *curr_endp;
174 struct delayed_work scheduler;
176 #define OHCI_QUIRK_AMD756 0x01
177 #define OHCI_QUIRK_SUPERIO 0x02
178 #define OHCI_QUIRK_INITRESET 0x04
179 #define OHCI_BIG_ENDIAN 0x08
180 #define OHCI_QUIRK_ZFMICRO 0x10
183 struct list_head u132_list;
184 struct semaphore sw_lock;
185 struct semaphore scheduler_lock;
186 struct u132_platform_data *board;
187 struct platform_device *platform_dev;
188 struct u132_ring ring[MAX_U132_RINGS];
196 u32 hc_roothub_status;
198 u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
200 unsigned long next_statechange;
201 struct delayed_work monitor;
203 struct u132_addr addr[MAX_U132_ADDRS];
204 struct u132_udev udev[MAX_U132_UDEVS];
205 struct u132_port port[MAX_U132_PORTS];
206 struct u132_endp *endp[MAX_U132_ENDPS];
210 * these cannot be inlines because we need the structure offset!!
211 * Does anyone have a better way?????
213 #define u132_read_pcimem(u132, member, data) \
214 usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
215 ohci_regs, member), 0, data);
216 #define u132_write_pcimem(u132, member, data) \
217 usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
218 ohci_regs, member), 0, data);
219 #define u132_write_pcimem_byte(u132, member, data) \
220 usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
221 ohci_regs, member), 0x0e, data);
222 static inline struct u132 *udev_to_u132(struct u132_udev *udev)
224 u8 udev_number = udev->udev_number;
225 return container_of(udev, struct u132, udev[udev_number]);
228 static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
230 return (struct u132 *)(hcd->hcd_priv);
233 static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
235 return container_of((void *)u132, struct usb_hcd, hcd_priv);
238 static inline void u132_disable(struct u132 *u132)
240 u132_to_hcd(u132)->state = HC_STATE_HALT;
244 #define kref_to_u132(d) container_of(d, struct u132, kref)
245 #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
246 #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
247 #include "../misc/usb_u132.h"
248 static const char hcd_name[] = "u132_hcd";
249 #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
250 USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
251 USB_PORT_STAT_C_RESET) << 16)
252 static void u132_hcd_delete(struct kref *kref)
254 struct u132 *u132 = kref_to_u132(kref);
255 struct platform_device *pdev = u132->platform_dev;
256 struct usb_hcd *hcd = u132_to_hcd(u132);
258 down(&u132_module_lock);
259 list_del_init(&u132->u132_list);
261 up(&u132_module_lock);
262 dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
263 "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
267 static inline void u132_u132_put_kref(struct u132 *u132)
269 kref_put(&u132->kref, u132_hcd_delete);
272 static inline void u132_u132_init_kref(struct u132 *u132)
274 kref_init(&u132->kref);
277 static void u132_udev_delete(struct kref *kref)
279 struct u132_udev *udev = kref_to_u132_udev(kref);
280 udev->udev_number = 0;
281 udev->usb_device = NULL;
283 udev->enumeration = 0;
286 static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
288 kref_put(&udev->kref, u132_udev_delete);
291 static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
293 kref_get(&udev->kref);
296 static inline void u132_udev_init_kref(struct u132 *u132,
297 struct u132_udev *udev)
299 kref_init(&udev->kref);
302 static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
304 kref_put(&u132->kref, u132_hcd_delete);
307 static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
311 if (queue_delayed_work(workqueue, &ring->scheduler, delta))
313 } else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
315 kref_put(&u132->kref, u132_hcd_delete);
319 static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
322 kref_get(&u132->kref);
323 u132_ring_requeue_work(u132, ring, delta);
327 static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
329 if (cancel_delayed_work(&ring->scheduler)) {
330 kref_put(&u132->kref, u132_hcd_delete);
334 static void u132_endp_delete(struct kref *kref)
336 struct u132_endp *endp = kref_to_u132_endp(kref);
337 struct u132 *u132 = endp->u132;
338 u8 usb_addr = endp->usb_addr;
339 u8 usb_endp = endp->usb_endp;
340 u8 address = u132->addr[usb_addr].address;
341 struct u132_udev *udev = &u132->udev[address];
342 u8 endp_number = endp->endp_number;
343 struct usb_host_endpoint *hep = endp->hep;
344 struct u132_ring *ring = endp->ring;
345 struct list_head *head = &endp->endp_ring;
347 if (endp == ring->curr_endp) {
348 if (list_empty(head)) {
349 ring->curr_endp = NULL;
352 struct u132_endp *next_endp = list_entry(head->next,
353 struct u132_endp, endp_ring);
354 ring->curr_endp = next_endp;
359 udev->endp_number_in[usb_endp] = 0;
360 u132_udev_put_kref(u132, udev);
363 udev->endp_number_out[usb_endp] = 0;
364 u132_udev_put_kref(u132, udev);
366 u132->endp[endp_number - 1] = NULL;
369 u132_u132_put_kref(u132);
372 static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
374 kref_put(&endp->kref, u132_endp_delete);
377 static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
379 kref_get(&endp->kref);
382 static inline void u132_endp_init_kref(struct u132 *u132,
383 struct u132_endp *endp)
385 kref_init(&endp->kref);
386 kref_get(&u132->kref);
389 static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
392 if (queue_delayed_work(workqueue, &endp->scheduler, delta))
393 kref_get(&endp->kref);
396 static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
398 if (cancel_delayed_work(&endp->scheduler))
399 kref_put(&endp->kref, u132_endp_delete);
402 static inline void u132_monitor_put_kref(struct u132 *u132)
404 kref_put(&u132->kref, u132_hcd_delete);
407 static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
409 if (queue_delayed_work(workqueue, &u132->monitor, delta))
410 kref_get(&u132->kref);
413 static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
415 if (!queue_delayed_work(workqueue, &u132->monitor, delta))
416 kref_put(&u132->kref, u132_hcd_delete);
419 static void u132_monitor_cancel_work(struct u132 *u132)
421 if (cancel_delayed_work(&u132->monitor))
422 kref_put(&u132->kref, u132_hcd_delete);
425 static int read_roothub_info(struct u132 *u132)
429 retval = u132_read_pcimem(u132, revision, &revision);
431 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
434 } else if ((revision & 0xFF) == 0x10) {
435 } else if ((revision & 0xFF) == 0x11) {
437 dev_err(&u132->platform_dev->dev, "device revision is not valid"
438 " %08X\n", revision);
441 retval = u132_read_pcimem(u132, control, &u132->hc_control);
443 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
447 retval = u132_read_pcimem(u132, roothub.status,
448 &u132->hc_roothub_status);
450 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
451 "g roothub.status\n", retval);
454 retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
456 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
457 "g roothub.a\n", retval);
461 int I = u132->num_ports;
464 retval = u132_read_pcimem(u132, roothub.portstatus[i],
465 &u132->hc_roothub_portstatus[i]);
467 dev_err(&u132->platform_dev->dev, "error %d acc"
468 "essing device roothub.portstatus[%d]\n"
478 static void u132_hcd_monitor_work(struct work_struct *work)
480 struct u132 *u132 = container_of(work, struct u132, monitor.work);
481 if (u132->going > 1) {
482 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
484 u132_monitor_put_kref(u132);
486 } else if (u132->going > 0) {
487 dev_err(&u132->platform_dev->dev, "device is being removed\n");
488 u132_monitor_put_kref(u132);
492 down(&u132->sw_lock);
493 retval = read_roothub_info(u132);
495 struct usb_hcd *hcd = u132_to_hcd(u132);
500 ftdi_elan_gone_away(u132->platform_dev);
501 u132_monitor_put_kref(u132);
504 u132_monitor_requeue_work(u132, 500);
511 static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
512 struct urb *urb, int status)
514 struct u132_ring *ring;
516 struct usb_hcd *hcd = u132_to_hcd(u132);
517 urb->error_count = 0;
518 urb->status = status;
520 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
521 endp->queue_next += 1;
522 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
524 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
526 struct list_head *next = endp->urb_more.next;
527 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
530 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
533 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
535 } down(&u132->scheduler_lock);
538 u132_ring_cancel_work(u132, ring);
539 u132_ring_queue_work(u132, ring, 0);
540 up(&u132->scheduler_lock);
541 u132_endp_put_kref(u132, endp);
542 usb_hcd_giveback_urb(hcd, urb);
546 static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
547 struct urb *urb, int status)
549 u132_endp_put_kref(u132, endp);
552 static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
553 struct urb *urb, int status)
556 struct usb_hcd *hcd = u132_to_hcd(u132);
557 urb->error_count = 0;
558 urb->status = status;
560 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
561 endp->queue_next += 1;
562 if (ENDP_QUEUE_SIZE > --endp->queue_size) {
564 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
566 struct list_head *next = endp->urb_more.next;
567 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
570 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
573 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
575 } usb_hcd_giveback_urb(hcd, urb);
579 static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
580 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
581 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
582 int toggle_bits, int error_count, int condition_code, int repeat_number,
583 int halted, int skipped, int actual, int non_null))
585 return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
586 urb, address, endp->usb_endp, toggle_bits, callback);
589 static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
590 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
591 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
592 int toggle_bits, int error_count, int condition_code, int repeat_number,
593 int halted, int skipped, int actual, int non_null))
595 return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
596 urb, address, endp->usb_endp, toggle_bits, callback);
599 static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
600 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
601 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
602 int toggle_bits, int error_count, int condition_code, int repeat_number,
603 int halted, int skipped, int actual, int non_null))
605 return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
606 endp, urb, address, endp->usb_endp, toggle_bits, callback);
609 static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
610 struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
611 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
612 int toggle_bits, int error_count, int condition_code, int repeat_number,
613 int halted, int skipped, int actual, int non_null))
615 return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
616 endp, urb, address, endp->usb_endp, toggle_bits, callback);
621 * must not LOCK sw_lock
624 static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
625 int len, int toggle_bits, int error_count, int condition_code,
626 int repeat_number, int halted, int skipped, int actual, int non_null)
628 struct u132_endp *endp = data;
629 struct u132 *u132 = endp->u132;
630 u8 address = u132->addr[endp->usb_addr].address;
631 struct u132_udev *udev = &u132->udev[address];
632 down(&u132->scheduler_lock);
633 if (u132->going > 1) {
634 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
636 up(&u132->scheduler_lock);
637 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
639 } else if (endp->dequeueing) {
640 endp->dequeueing = 0;
641 up(&u132->scheduler_lock);
642 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
644 } else if (u132->going > 0) {
645 dev_err(&u132->platform_dev->dev, "device is being removed urb="
646 "%p status=%d\n", urb, urb->status);
647 up(&u132->scheduler_lock);
648 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
650 } else if (urb->status == -EINPROGRESS) {
651 struct u132_ring *ring = endp->ring;
652 u8 *u = urb->transfer_buffer + urb->actual_length;
658 urb->actual_length += len;
659 if ((condition_code == TD_CC_NOERROR) &&
660 (urb->transfer_buffer_length > urb->actual_length)) {
661 endp->toggle_bits = toggle_bits;
662 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
664 if (urb->actual_length > 0) {
666 up(&u132->scheduler_lock);
667 retval = edset_single(u132, ring, endp, urb,
668 address, endp->toggle_bits,
669 u132_hcd_interrupt_recv);
672 u132_hcd_giveback_urb(u132, endp, urb,
677 endp->jiffies = jiffies +
678 msecs_to_jiffies(urb->interval);
679 u132_ring_cancel_work(u132, ring);
680 u132_ring_queue_work(u132, ring, 0);
681 up(&u132->scheduler_lock);
682 u132_endp_put_kref(u132, endp);
685 } else if ((condition_code == TD_DATAUNDERRUN) &&
686 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
687 endp->toggle_bits = toggle_bits;
688 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
690 up(&u132->scheduler_lock);
691 u132_hcd_giveback_urb(u132, endp, urb, 0);
694 if (condition_code == TD_CC_NOERROR) {
695 endp->toggle_bits = toggle_bits;
696 usb_settoggle(udev->usb_device, endp->usb_endp,
698 } else if (condition_code == TD_CC_STALL) {
699 endp->toggle_bits = 0x2;
700 usb_settoggle(udev->usb_device, endp->usb_endp,
703 endp->toggle_bits = 0x2;
704 usb_settoggle(udev->usb_device, endp->usb_endp,
706 dev_err(&u132->platform_dev->dev, "urb=%p givin"
707 "g back INTERRUPT %s\n", urb,
708 cc_to_text[condition_code]);
710 up(&u132->scheduler_lock);
711 u132_hcd_giveback_urb(u132, endp, urb,
712 cc_to_error[condition_code]);
716 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
717 "s=%d\n", urb, urb->status);
718 up(&u132->scheduler_lock);
719 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
724 static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
725 int len, int toggle_bits, int error_count, int condition_code,
726 int repeat_number, int halted, int skipped, int actual, int non_null)
728 struct u132_endp *endp = data;
729 struct u132 *u132 = endp->u132;
730 u8 address = u132->addr[endp->usb_addr].address;
731 down(&u132->scheduler_lock);
732 if (u132->going > 1) {
733 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
735 up(&u132->scheduler_lock);
736 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
738 } else if (endp->dequeueing) {
739 endp->dequeueing = 0;
740 up(&u132->scheduler_lock);
741 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
743 } else if (u132->going > 0) {
744 dev_err(&u132->platform_dev->dev, "device is being removed urb="
745 "%p status=%d\n", urb, urb->status);
746 up(&u132->scheduler_lock);
747 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
749 } else if (urb->status == -EINPROGRESS) {
750 struct u132_ring *ring = endp->ring;
751 urb->actual_length += len;
752 endp->toggle_bits = toggle_bits;
753 if (urb->transfer_buffer_length > urb->actual_length) {
755 up(&u132->scheduler_lock);
756 retval = edset_output(u132, ring, endp, urb, address,
757 endp->toggle_bits, u132_hcd_bulk_output_sent);
760 u132_hcd_giveback_urb(u132, endp, urb, retval);
763 up(&u132->scheduler_lock);
764 u132_hcd_giveback_urb(u132, endp, urb, 0);
768 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
769 "s=%d\n", urb, urb->status);
770 up(&u132->scheduler_lock);
771 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
776 static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
777 int len, int toggle_bits, int error_count, int condition_code,
778 int repeat_number, int halted, int skipped, int actual, int non_null)
780 struct u132_endp *endp = data;
781 struct u132 *u132 = endp->u132;
782 u8 address = u132->addr[endp->usb_addr].address;
783 struct u132_udev *udev = &u132->udev[address];
784 down(&u132->scheduler_lock);
785 if (u132->going > 1) {
786 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
788 up(&u132->scheduler_lock);
789 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
791 } else if (endp->dequeueing) {
792 endp->dequeueing = 0;
793 up(&u132->scheduler_lock);
794 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
796 } else if (u132->going > 0) {
797 dev_err(&u132->platform_dev->dev, "device is being removed urb="
798 "%p status=%d\n", urb, urb->status);
799 up(&u132->scheduler_lock);
800 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
802 } else if (urb->status == -EINPROGRESS) {
803 struct u132_ring *ring = endp->ring;
804 u8 *u = urb->transfer_buffer + urb->actual_length;
810 urb->actual_length += len;
811 if ((condition_code == TD_CC_NOERROR) &&
812 (urb->transfer_buffer_length > urb->actual_length)) {
814 endp->toggle_bits = toggle_bits;
815 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
817 up(&u132->scheduler_lock);
818 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
819 ring->number, endp, urb, address,
820 endp->usb_endp, endp->toggle_bits,
821 u132_hcd_bulk_input_recv);
824 u132_hcd_giveback_urb(u132, endp, urb, retval);
826 } else if (condition_code == TD_CC_NOERROR) {
827 endp->toggle_bits = toggle_bits;
828 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
830 up(&u132->scheduler_lock);
831 u132_hcd_giveback_urb(u132, endp, urb,
832 cc_to_error[condition_code]);
834 } else if ((condition_code == TD_DATAUNDERRUN) &&
835 ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
836 endp->toggle_bits = toggle_bits;
837 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
839 up(&u132->scheduler_lock);
840 u132_hcd_giveback_urb(u132, endp, urb, 0);
842 } else if (condition_code == TD_DATAUNDERRUN) {
843 endp->toggle_bits = toggle_bits;
844 usb_settoggle(udev->usb_device, endp->usb_endp, 0,
846 dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
847 ") giving back BULK IN %s\n", urb,
848 cc_to_text[condition_code]);
849 up(&u132->scheduler_lock);
850 u132_hcd_giveback_urb(u132, endp, urb, 0);
852 } else if (condition_code == TD_CC_STALL) {
853 endp->toggle_bits = 0x2;
854 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
855 up(&u132->scheduler_lock);
856 u132_hcd_giveback_urb(u132, endp, urb,
857 cc_to_error[condition_code]);
860 endp->toggle_bits = 0x2;
861 usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
862 dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
863 "ULK IN code=%d %s\n", urb, condition_code,
864 cc_to_text[condition_code]);
865 up(&u132->scheduler_lock);
866 u132_hcd_giveback_urb(u132, endp, urb,
867 cc_to_error[condition_code]);
871 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
872 "s=%d\n", urb, urb->status);
873 up(&u132->scheduler_lock);
874 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
879 static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
880 int len, int toggle_bits, int error_count, int condition_code,
881 int repeat_number, int halted, int skipped, int actual, int non_null)
883 struct u132_endp *endp = data;
884 struct u132 *u132 = endp->u132;
885 down(&u132->scheduler_lock);
886 if (u132->going > 1) {
887 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
889 up(&u132->scheduler_lock);
890 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
892 } else if (endp->dequeueing) {
893 endp->dequeueing = 0;
894 up(&u132->scheduler_lock);
895 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
897 } else if (u132->going > 0) {
898 dev_err(&u132->platform_dev->dev, "device is being removed urb="
899 "%p status=%d\n", urb, urb->status);
900 up(&u132->scheduler_lock);
901 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
903 } else if (urb->status == -EINPROGRESS) {
904 up(&u132->scheduler_lock);
905 u132_hcd_giveback_urb(u132, endp, urb, 0);
908 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
909 "s=%d\n", urb, urb->status);
910 up(&u132->scheduler_lock);
911 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
916 static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
917 int len, int toggle_bits, int error_count, int condition_code,
918 int repeat_number, int halted, int skipped, int actual, int non_null)
920 struct u132_endp *endp = data;
921 struct u132 *u132 = endp->u132;
922 u8 address = u132->addr[endp->usb_addr].address;
923 down(&u132->scheduler_lock);
924 if (u132->going > 1) {
925 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
927 up(&u132->scheduler_lock);
928 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
930 } else if (endp->dequeueing) {
931 endp->dequeueing = 0;
932 up(&u132->scheduler_lock);
933 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
935 } else if (u132->going > 0) {
936 dev_err(&u132->platform_dev->dev, "device is being removed urb="
937 "%p status=%d\n", urb, urb->status);
938 up(&u132->scheduler_lock);
939 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
941 } else if (urb->status == -EINPROGRESS) {
942 struct u132_ring *ring = endp->ring;
943 u8 *u = urb->transfer_buffer;
949 urb->actual_length = len;
950 if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
951 TD_DATAUNDERRUN) && ((urb->transfer_flags &
952 URB_SHORT_NOT_OK) == 0))) {
954 up(&u132->scheduler_lock);
955 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
956 ring->number, endp, urb, address,
958 u132_hcd_configure_empty_sent);
961 u132_hcd_giveback_urb(u132, endp, urb, retval);
963 } else if (condition_code == TD_CC_STALL) {
964 up(&u132->scheduler_lock);
965 dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
966 "NPUT STALL urb %p\n", urb);
967 u132_hcd_giveback_urb(u132, endp, urb,
968 cc_to_error[condition_code]);
971 up(&u132->scheduler_lock);
972 dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
973 "PUT %s urb %p\n", cc_to_text[condition_code],
975 u132_hcd_giveback_urb(u132, endp, urb,
976 cc_to_error[condition_code]);
980 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
981 "s=%d\n", urb, urb->status);
982 up(&u132->scheduler_lock);
983 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
988 static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
989 int len, int toggle_bits, int error_count, int condition_code,
990 int repeat_number, int halted, int skipped, int actual, int non_null)
992 struct u132_endp *endp = data;
993 struct u132 *u132 = endp->u132;
994 down(&u132->scheduler_lock);
995 if (u132->going > 1) {
996 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
998 up(&u132->scheduler_lock);
999 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1001 } else if (endp->dequeueing) {
1002 endp->dequeueing = 0;
1003 up(&u132->scheduler_lock);
1004 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1006 } else if (u132->going > 0) {
1007 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1008 "%p status=%d\n", urb, urb->status);
1009 up(&u132->scheduler_lock);
1010 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1012 } else if (urb->status == -EINPROGRESS) {
1013 up(&u132->scheduler_lock);
1014 u132_hcd_giveback_urb(u132, endp, urb, 0);
1017 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1018 "s=%d\n", urb, urb->status);
1019 up(&u132->scheduler_lock);
1020 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1025 static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
1026 int len, int toggle_bits, int error_count, int condition_code,
1027 int repeat_number, int halted, int skipped, int actual, int non_null)
1029 struct u132_endp *endp = data;
1030 struct u132 *u132 = endp->u132;
1031 u8 address = u132->addr[endp->usb_addr].address;
1032 down(&u132->scheduler_lock);
1033 if (u132->going > 1) {
1034 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1036 up(&u132->scheduler_lock);
1037 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1039 } else if (endp->dequeueing) {
1040 endp->dequeueing = 0;
1041 up(&u132->scheduler_lock);
1042 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1044 } else if (u132->going > 0) {
1045 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1046 "%p status=%d\n", urb, urb->status);
1047 up(&u132->scheduler_lock);
1048 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1050 } else if (urb->status == -EINPROGRESS) {
1051 if (usb_pipein(urb->pipe)) {
1053 struct u132_ring *ring = endp->ring;
1054 up(&u132->scheduler_lock);
1055 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1056 ring->number, endp, urb, address,
1058 u132_hcd_configure_input_recv);
1061 u132_hcd_giveback_urb(u132, endp, urb, retval);
1065 struct u132_ring *ring = endp->ring;
1066 up(&u132->scheduler_lock);
1067 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1068 ring->number, endp, urb, address,
1070 u132_hcd_configure_empty_recv);
1073 u132_hcd_giveback_urb(u132, endp, urb, retval);
1077 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1078 "s=%d\n", urb, urb->status);
1079 up(&u132->scheduler_lock);
1080 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1085 static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
1086 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1087 int repeat_number, int halted, int skipped, int actual, int non_null)
1089 struct u132_endp *endp = data;
1090 struct u132 *u132 = endp->u132;
1091 u8 address = u132->addr[endp->usb_addr].address;
1092 struct u132_udev *udev = &u132->udev[address];
1093 down(&u132->scheduler_lock);
1094 if (u132->going > 1) {
1095 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1097 up(&u132->scheduler_lock);
1098 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1100 } else if (endp->dequeueing) {
1101 endp->dequeueing = 0;
1102 up(&u132->scheduler_lock);
1103 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1105 } else if (u132->going > 0) {
1106 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1107 "%p status=%d\n", urb, urb->status);
1108 up(&u132->scheduler_lock);
1109 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1111 } else if (urb->status == -EINPROGRESS) {
1112 u132->addr[0].address = 0;
1113 endp->usb_addr = udev->usb_addr;
1114 up(&u132->scheduler_lock);
1115 u132_hcd_giveback_urb(u132, endp, urb, 0);
1118 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1119 "s=%d\n", urb, urb->status);
1120 up(&u132->scheduler_lock);
1121 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1126 static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
1127 u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1128 int repeat_number, int halted, int skipped, int actual, int non_null)
1130 struct u132_endp *endp = data;
1131 struct u132 *u132 = endp->u132;
1132 down(&u132->scheduler_lock);
1133 if (u132->going > 1) {
1134 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1136 up(&u132->scheduler_lock);
1137 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1139 } else if (endp->dequeueing) {
1140 endp->dequeueing = 0;
1141 up(&u132->scheduler_lock);
1142 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1144 } else if (u132->going > 0) {
1145 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1146 "%p status=%d\n", urb, urb->status);
1147 up(&u132->scheduler_lock);
1148 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1150 } else if (urb->status == -EINPROGRESS) {
1152 struct u132_ring *ring = endp->ring;
1153 up(&u132->scheduler_lock);
1154 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1155 ring->number, endp, urb, 0, endp->usb_endp, 0,
1156 u132_hcd_enumeration_empty_recv);
1159 u132_hcd_giveback_urb(u132, endp, urb, retval);
1162 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1163 "s=%d\n", urb, urb->status);
1164 up(&u132->scheduler_lock);
1165 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1170 static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
1171 int len, int toggle_bits, int error_count, int condition_code,
1172 int repeat_number, int halted, int skipped, int actual, int non_null)
1174 struct u132_endp *endp = data;
1175 struct u132 *u132 = endp->u132;
1176 down(&u132->scheduler_lock);
1177 if (u132->going > 1) {
1178 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1180 up(&u132->scheduler_lock);
1181 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1183 } else if (endp->dequeueing) {
1184 endp->dequeueing = 0;
1185 up(&u132->scheduler_lock);
1186 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1188 } else if (u132->going > 0) {
1189 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1190 "%p status=%d\n", urb, urb->status);
1191 up(&u132->scheduler_lock);
1192 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1194 } else if (urb->status == -EINPROGRESS) {
1195 up(&u132->scheduler_lock);
1196 u132_hcd_giveback_urb(u132, endp, urb, 0);
1199 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1200 "s=%d\n", urb, urb->status);
1201 up(&u132->scheduler_lock);
1202 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1207 static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
1208 int len, int toggle_bits, int error_count, int condition_code,
1209 int repeat_number, int halted, int skipped, int actual, int non_null)
1211 struct u132_endp *endp = data;
1212 struct u132 *u132 = endp->u132;
1213 u8 address = u132->addr[endp->usb_addr].address;
1214 down(&u132->scheduler_lock);
1215 if (u132->going > 1) {
1216 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1218 up(&u132->scheduler_lock);
1219 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1221 } else if (endp->dequeueing) {
1222 endp->dequeueing = 0;
1223 up(&u132->scheduler_lock);
1224 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1226 } else if (u132->going > 0) {
1227 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1228 "%p status=%d\n", urb, urb->status);
1229 up(&u132->scheduler_lock);
1230 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1232 } else if (urb->status == -EINPROGRESS) {
1234 struct u132_ring *ring = endp->ring;
1235 u8 *u = urb->transfer_buffer;
1241 urb->actual_length = len;
1242 up(&u132->scheduler_lock);
1243 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
1244 ring->number, endp, urb, address, endp->usb_endp, 0x3,
1245 u132_hcd_initial_empty_sent);
1248 u132_hcd_giveback_urb(u132, endp, urb, retval);
1251 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1252 "s=%d\n", urb, urb->status);
1253 up(&u132->scheduler_lock);
1254 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1259 static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
1260 int len, int toggle_bits, int error_count, int condition_code,
1261 int repeat_number, int halted, int skipped, int actual, int non_null)
1263 struct u132_endp *endp = data;
1264 struct u132 *u132 = endp->u132;
1265 u8 address = u132->addr[endp->usb_addr].address;
1266 down(&u132->scheduler_lock);
1267 if (u132->going > 1) {
1268 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1270 up(&u132->scheduler_lock);
1271 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1273 } else if (endp->dequeueing) {
1274 endp->dequeueing = 0;
1275 up(&u132->scheduler_lock);
1276 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1278 } else if (u132->going > 0) {
1279 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1280 "%p status=%d\n", urb, urb->status);
1281 up(&u132->scheduler_lock);
1282 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1284 } else if (urb->status == -EINPROGRESS) {
1286 struct u132_ring *ring = endp->ring;
1287 up(&u132->scheduler_lock);
1288 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1289 ring->number, endp, urb, address, endp->usb_endp, 0,
1290 u132_hcd_initial_input_recv);
1293 u132_hcd_giveback_urb(u132, endp, urb, retval);
1296 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1297 "s=%d\n", urb, urb->status);
1298 up(&u132->scheduler_lock);
1299 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1305 * this work function is only executed from the work queue
1308 static void u132_hcd_ring_work_scheduler(struct work_struct *work)
1310 struct u132_ring *ring =
1311 container_of(work, struct u132_ring, scheduler.work);
1312 struct u132 *u132 = ring->u132;
1313 down(&u132->scheduler_lock);
1315 up(&u132->scheduler_lock);
1316 u132_ring_put_kref(u132, ring);
1318 } else if (ring->curr_endp) {
1319 struct u132_endp *last_endp = ring->curr_endp;
1320 struct list_head *scan;
1321 struct list_head *head = &last_endp->endp_ring;
1322 unsigned long wakeup = 0;
1323 list_for_each(scan, head) {
1324 struct u132_endp *endp = list_entry(scan,
1325 struct u132_endp, endp_ring);
1326 if (endp->queue_next == endp->queue_last) {
1327 } else if ((endp->delayed == 0)
1328 || time_after_eq(jiffies, endp->jiffies)) {
1329 ring->curr_endp = endp;
1330 u132_endp_cancel_work(u132, last_endp);
1331 u132_endp_queue_work(u132, last_endp, 0);
1332 up(&u132->scheduler_lock);
1333 u132_ring_put_kref(u132, ring);
1336 unsigned long delta = endp->jiffies - jiffies;
1341 if (last_endp->queue_next == last_endp->queue_last) {
1342 } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
1343 last_endp->jiffies)) {
1344 u132_endp_cancel_work(u132, last_endp);
1345 u132_endp_queue_work(u132, last_endp, 0);
1346 up(&u132->scheduler_lock);
1347 u132_ring_put_kref(u132, ring);
1350 unsigned long delta = last_endp->jiffies - jiffies;
1355 u132_ring_requeue_work(u132, ring, wakeup);
1356 up(&u132->scheduler_lock);
1359 up(&u132->scheduler_lock);
1360 u132_ring_put_kref(u132, ring);
1364 up(&u132->scheduler_lock);
1365 u132_ring_put_kref(u132, ring);
1370 static void u132_hcd_endp_work_scheduler(struct work_struct *work)
1372 struct u132_ring *ring;
1373 struct u132_endp *endp =
1374 container_of(work, struct u132_endp, scheduler.work);
1375 struct u132 *u132 = endp->u132;
1376 down(&u132->scheduler_lock);
1378 if (endp->edset_flush) {
1379 endp->edset_flush = 0;
1380 if (endp->dequeueing)
1381 usb_ftdi_elan_edset_flush(u132->platform_dev,
1382 ring->number, endp);
1383 up(&u132->scheduler_lock);
1384 u132_endp_put_kref(u132, endp);
1386 } else if (endp->active) {
1387 up(&u132->scheduler_lock);
1388 u132_endp_put_kref(u132, endp);
1390 } else if (ring->in_use) {
1391 up(&u132->scheduler_lock);
1392 u132_endp_put_kref(u132, endp);
1394 } else if (endp->queue_next == endp->queue_last) {
1395 up(&u132->scheduler_lock);
1396 u132_endp_put_kref(u132, endp);
1398 } else if (endp->pipetype == PIPE_INTERRUPT) {
1399 u8 address = u132->addr[endp->usb_addr].address;
1401 up(&u132->scheduler_lock);
1402 u132_endp_put_kref(u132, endp);
1406 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1409 ring->curr_endp = endp;
1411 up(&u132->scheduler_lock);
1412 retval = edset_single(u132, ring, endp, urb, address,
1413 endp->toggle_bits, u132_hcd_interrupt_recv);
1416 u132_hcd_giveback_urb(u132, endp, urb, retval);
1419 } else if (endp->pipetype == PIPE_CONTROL) {
1420 u8 address = u132->addr[endp->usb_addr].address;
1422 up(&u132->scheduler_lock);
1423 u132_endp_put_kref(u132, endp);
1425 } else if (address == 0) {
1427 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1430 ring->curr_endp = endp;
1432 up(&u132->scheduler_lock);
1433 retval = edset_setup(u132, ring, endp, urb, address,
1434 0x2, u132_hcd_initial_setup_sent);
1437 u132_hcd_giveback_urb(u132, endp, urb, retval);
1439 } else if (endp->usb_addr == 0) {
1441 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1444 ring->curr_endp = endp;
1446 up(&u132->scheduler_lock);
1447 retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
1448 u132_hcd_enumeration_address_sent);
1451 u132_hcd_giveback_urb(u132, endp, urb, retval);
1455 u8 address = u132->addr[endp->usb_addr].address;
1456 struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1459 ring->curr_endp = endp;
1461 up(&u132->scheduler_lock);
1462 retval = edset_setup(u132, ring, endp, urb, address,
1463 0x2, u132_hcd_configure_setup_sent);
1466 u132_hcd_giveback_urb(u132, endp, urb, retval);
1471 u8 address = u132->addr[endp->usb_addr].address;
1473 up(&u132->scheduler_lock);
1474 u132_endp_put_kref(u132, endp);
1478 struct urb *urb = endp->urb_list[
1479 ENDP_QUEUE_MASK & endp->queue_next];
1481 ring->curr_endp = endp;
1483 up(&u132->scheduler_lock);
1484 retval = edset_input(u132, ring, endp, urb,
1485 address, endp->toggle_bits,
1486 u132_hcd_bulk_input_recv);
1489 u132_hcd_giveback_urb(u132, endp, urb,
1493 } else { /* output pipe */
1494 u8 address = u132->addr[endp->usb_addr].address;
1496 up(&u132->scheduler_lock);
1497 u132_endp_put_kref(u132, endp);
1501 struct urb *urb = endp->urb_list[
1502 ENDP_QUEUE_MASK & endp->queue_next];
1504 ring->curr_endp = endp;
1506 up(&u132->scheduler_lock);
1507 retval = edset_output(u132, ring, endp, urb,
1508 address, endp->toggle_bits,
1509 u132_hcd_bulk_output_sent);
1512 u132_hcd_giveback_urb(u132, endp, urb,
1520 static void port_power(struct u132 *u132, int pn, int is_on)
1522 u132->port[pn].power = is_on;
1525 static void u132_power(struct u132 *u132, int is_on)
1527 struct usb_hcd *hcd = u132_to_hcd(u132)
1528 ; /* hub is inactive unless the port is powered */
1533 hcd->self.controller->power.power_state = PMSG_ON;
1536 hcd->state = HC_STATE_HALT;
1537 hcd->self.controller->power.power_state = PMSG_SUSPEND;
1541 static int u132_periodic_reinit(struct u132 *u132)
1544 u32 fi = u132->hc_fminterval & 0x03fff;
1547 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1550 fit = fminterval & FIT;
1551 retval = u132_write_pcimem(u132, fminterval,
1552 (fit ^ FIT) | u132->hc_fminterval);
1555 retval = u132_write_pcimem(u132, periodicstart,
1556 ((9 *fi) / 10) & 0x3fff);
1562 static char *hcfs2string(int state)
1565 case OHCI_USB_RESET:
1567 case OHCI_USB_RESUME:
1570 return "operational";
1571 case OHCI_USB_SUSPEND:
1577 static int u132_usb_reset(struct u132 *u132)
1580 retval = u132_read_pcimem(u132, control, &u132->hc_control);
1583 u132->hc_control &= OHCI_CTRL_RWC;
1584 retval = u132_write_pcimem(u132, control, u132->hc_control);
1590 static int u132_init(struct u132 *u132)
1595 u132->next_statechange =
1596 jiffies; /* SMM owns the HC? not for long! */ {
1598 retval = u132_read_pcimem(u132, control, &control);
1601 if (control & OHCI_CTRL_IR) {
1603 retval = u132_write_pcimem(u132, intrenable,
1607 retval = u132_write_pcimem_byte(u132, cmdstatus,
1612 retval = u132_read_pcimem(u132, control,
1617 if (control & OHCI_CTRL_IR) {
1620 dev_err(&u132->platform_dev->dev, "USB "
1621 "HC takeover failed!(BIOS/SMM b"
1622 "ug) control=%08X\n", control);
1627 u132_usb_reset(u132);
1630 retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
1633 retval = u132_read_pcimem(u132, control, &control);
1636 if (u132->num_ports == 0) {
1638 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
1641 u132->num_ports = rh_a & RH_A_NDP;
1642 retval = read_roothub_info(u132);
1646 if (u132->num_ports > MAX_U132_PORTS) {
1653 /* Start an OHCI controller, set the BUS operational
1654 * resets USB and controller
1657 static int u132_run(struct u132 *u132)
1666 int mask = OHCI_INTR_INIT;
1667 int first = u132->hc_fminterval == 0;
1669 int reset_timeout = 30; /* ... allow extra time */
1673 retval = u132_read_pcimem(u132, fminterval, &temp);
1676 u132->hc_fminterval = temp & 0x3fff;
1677 if (u132->hc_fminterval != FI) {
1679 u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
1681 retval = u132_read_pcimem(u132, control, &u132->hc_control);
1684 dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
1685 "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
1687 switch (u132->hc_control & OHCI_CTRL_HCFS) {
1691 case OHCI_USB_SUSPEND:
1692 case OHCI_USB_RESUME:
1693 u132->hc_control &= OHCI_CTRL_RWC;
1694 u132->hc_control |= OHCI_USB_RESUME;
1698 u132->hc_control &= OHCI_CTRL_RWC;
1699 u132->hc_control |= OHCI_USB_RESET;
1703 retval = u132_write_pcimem(u132, control, u132->hc_control);
1706 retval = u132_read_pcimem(u132, control, &control);
1710 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1713 if (!(roothub_a & RH_A_NPS)) {
1714 int temp; /* power down each port */
1715 for (temp = 0; temp < u132->num_ports; temp++) {
1716 retval = u132_write_pcimem(u132,
1717 roothub.portstatus[temp], RH_PS_LSDA);
1722 retval = u132_read_pcimem(u132, control, &control);
1725 retry:retval = u132_read_pcimem(u132, cmdstatus, &status);
1728 retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_HCR);
1732 retval = u132_read_pcimem(u132, cmdstatus, &status);
1735 if (0 != (status & OHCI_HCR)) {
1736 if (--reset_timeout == 0) {
1737 dev_err(&u132->platform_dev->dev, "USB HC reset"
1746 if (u132->flags & OHCI_QUIRK_INITRESET) {
1747 retval = u132_write_pcimem(u132, control, u132->hc_control);
1750 retval = u132_read_pcimem(u132, control, &control);
1754 retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
1757 retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
1760 retval = u132_write_pcimem(u132, hcca, 0x00000000);
1763 retval = u132_periodic_reinit(u132);
1766 retval = u132_read_pcimem(u132, fminterval, &fminterval);
1769 retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
1772 if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
1773 if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
1774 u132->flags |= OHCI_QUIRK_INITRESET;
1777 dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
1778 "\n", fminterval, periodicstart);
1779 } /* start controller operations */
1780 u132->hc_control &= OHCI_CTRL_RWC;
1781 u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
1782 retval = u132_write_pcimem(u132, control, u132->hc_control);
1785 retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_BLF);
1788 retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
1791 retval = u132_read_pcimem(u132, control, &control);
1794 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1795 retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
1798 retval = u132_write_pcimem(u132, intrstatus, mask);
1801 retval = u132_write_pcimem(u132, intrdisable,
1802 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
1803 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
1806 return retval; /* handle root hub init quirks ... */
1807 retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1810 roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
1811 if (u132->flags & OHCI_QUIRK_SUPERIO) {
1812 roothub_a |= RH_A_NOCP;
1813 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
1814 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1817 } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
1818 roothub_a |= RH_A_NPS;
1819 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1823 retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
1826 retval = u132_write_pcimem(u132, roothub.b,
1827 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
1830 retval = u132_read_pcimem(u132, control, &control);
1833 mdelay((roothub_a >> 23) & 0x1fe);
1834 u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1838 static void u132_hcd_stop(struct usb_hcd *hcd)
1840 struct u132 *u132 = hcd_to_u132(hcd);
1841 if (u132->going > 1) {
1842 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1844 } else if (u132->going > 0) {
1845 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
1848 down(&u132->sw_lock);
1850 u132_power(u132, 0);
1855 static int u132_hcd_start(struct usb_hcd *hcd)
1857 struct u132 *u132 = hcd_to_u132(hcd);
1858 if (u132->going > 1) {
1859 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1862 } else if (u132->going > 0) {
1863 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1865 } else if (hcd->self.controller) {
1867 struct platform_device *pdev =
1868 to_platform_device(hcd->self.controller);
1869 u16 vendor = ((struct u132_platform_data *)
1870 (pdev->dev.platform_data))->vendor;
1871 u16 device = ((struct u132_platform_data *)
1872 (pdev->dev.platform_data))->device;
1873 down(&u132->sw_lock);
1875 if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
1876 u132->flags = OHCI_QUIRK_AMD756;
1877 } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
1878 dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
1879 "ounds unavailable\n");
1880 } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
1881 u132->flags |= OHCI_QUIRK_ZFMICRO;
1882 retval = u132_run(u132);
1891 dev_err(&u132->platform_dev->dev, "platform_device missing\n");
1896 static int u132_hcd_reset(struct usb_hcd *hcd)
1898 struct u132 *u132 = hcd_to_u132(hcd);
1899 if (u132->going > 1) {
1900 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1903 } else if (u132->going > 0) {
1904 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1908 down(&u132->sw_lock);
1909 retval = u132_init(u132);
1919 static int create_endpoint_and_queue_int(struct u132 *u132,
1920 struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb,
1921 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1924 struct u132_ring *ring;
1926 u8 endp_number = ++u132->num_endpoints;
1927 struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
1928 kmalloc(sizeof(struct u132_endp), mem_flags);
1932 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1933 spin_lock_init(&endp->queue_lock.slock);
1934 INIT_LIST_HEAD(&endp->urb_more);
1935 ring = endp->ring = &u132->ring[0];
1936 if (ring->curr_endp) {
1937 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
1939 INIT_LIST_HEAD(&endp->endp_ring);
1940 ring->curr_endp = endp;
1943 endp->dequeueing = 0;
1944 endp->edset_flush = 0;
1947 endp->endp_number = endp_number;
1950 endp->pipetype = usb_pipetype(urb->pipe);
1951 u132_endp_init_kref(u132, endp);
1952 if (usb_pipein(urb->pipe)) {
1953 endp->toggle_bits = 0x2;
1954 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1957 udev->endp_number_in[usb_endp] = endp_number;
1958 u132_udev_get_kref(u132, udev);
1960 endp->toggle_bits = 0x2;
1961 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1964 udev->endp_number_out[usb_endp] = endp_number;
1965 u132_udev_get_kref(u132, udev);
1968 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1970 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1971 endp->udev_number = address;
1972 endp->usb_addr = usb_addr;
1973 endp->usb_endp = usb_endp;
1974 endp->queue_size = 1;
1975 endp->queue_last = 0;
1976 endp->queue_next = 0;
1977 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1978 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1979 u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
1983 static int queue_int_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
1984 struct usb_host_endpoint *hep, struct urb *urb,
1985 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
1986 u8 usb_endp, u8 address)
1990 endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1991 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
1992 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1994 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
1997 endp->queue_size -= 1;
2000 list_add_tail(&urbq->urb_more, &endp->urb_more);
2007 static int create_endpoint_and_queue_bulk(struct u132 *u132,
2008 struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb,
2009 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
2013 struct u132_ring *ring;
2015 u8 endp_number = ++u132->num_endpoints;
2016 struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
2017 kmalloc(sizeof(struct u132_endp), mem_flags);
2021 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2022 spin_lock_init(&endp->queue_lock.slock);
2023 INIT_LIST_HEAD(&endp->urb_more);
2024 endp->dequeueing = 0;
2025 endp->edset_flush = 0;
2028 endp->endp_number = endp_number;
2031 endp->pipetype = usb_pipetype(urb->pipe);
2032 u132_endp_init_kref(u132, endp);
2033 if (usb_pipein(urb->pipe)) {
2034 endp->toggle_bits = 0x2;
2035 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
2039 udev->endp_number_in[usb_endp] = endp_number;
2040 u132_udev_get_kref(u132, udev);
2042 endp->toggle_bits = 0x2;
2043 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
2047 udev->endp_number_out[usb_endp] = endp_number;
2048 u132_udev_get_kref(u132, udev);
2050 ring = endp->ring = &u132->ring[ring_number - 1];
2051 if (ring->curr_endp) {
2052 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2054 INIT_LIST_HEAD(&endp->endp_ring);
2055 ring->curr_endp = endp;
2059 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2060 endp->udev_number = address;
2061 endp->usb_addr = usb_addr;
2062 endp->usb_endp = usb_endp;
2063 endp->queue_size = 1;
2064 endp->queue_last = 0;
2065 endp->queue_next = 0;
2066 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2067 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2068 u132_endp_queue_work(u132, endp, 0);
2072 static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
2073 struct usb_host_endpoint *hep, struct urb *urb,
2074 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2075 u8 usb_endp, u8 address)
2078 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2079 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2081 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
2084 endp->queue_size -= 1;
2087 list_add_tail(&urbq->urb_more, &endp->urb_more);
2094 static int create_endpoint_and_queue_control(struct u132 *u132,
2095 struct usb_host_endpoint *hep, struct urb *urb,
2096 struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
2099 struct u132_ring *ring;
2100 u8 endp_number = ++u132->num_endpoints;
2101 struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
2102 kmalloc(sizeof(struct u132_endp), mem_flags);
2106 INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2107 spin_lock_init(&endp->queue_lock.slock);
2108 INIT_LIST_HEAD(&endp->urb_more);
2109 ring = endp->ring = &u132->ring[0];
2110 if (ring->curr_endp) {
2111 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2113 INIT_LIST_HEAD(&endp->endp_ring);
2114 ring->curr_endp = endp;
2117 endp->dequeueing = 0;
2118 endp->edset_flush = 0;
2121 endp->endp_number = endp_number;
2124 u132_endp_init_kref(u132, endp);
2125 u132_endp_get_kref(u132, endp);
2126 if (usb_addr == 0) {
2128 u8 address = u132->addr[usb_addr].address;
2129 struct u132_udev *udev = &u132->udev[address];
2130 endp->udev_number = address;
2131 endp->usb_addr = usb_addr;
2132 endp->usb_endp = usb_endp;
2135 endp->pipetype = usb_pipetype(urb->pipe);
2136 u132_udev_init_kref(u132, udev);
2137 u132_udev_get_kref(u132, udev);
2138 udev->endp_number_in[usb_endp] = endp_number;
2139 udev->endp_number_out[usb_endp] = endp_number;
2141 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2142 endp->queue_size = 1;
2143 endp->queue_last = 0;
2144 endp->queue_next = 0;
2145 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2146 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2147 u132_endp_queue_work(u132, endp, 0);
2149 } else { /*(usb_addr > 0) */
2151 u8 address = u132->addr[usb_addr].address;
2152 struct u132_udev *udev = &u132->udev[address];
2153 endp->udev_number = address;
2154 endp->usb_addr = usb_addr;
2155 endp->usb_endp = usb_endp;
2158 endp->pipetype = usb_pipetype(urb->pipe);
2159 u132_udev_get_kref(u132, udev);
2160 udev->enumeration = 2;
2161 udev->endp_number_in[usb_endp] = endp_number;
2162 udev->endp_number_out[usb_endp] = endp_number;
2164 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2165 endp->queue_size = 1;
2166 endp->queue_last = 0;
2167 endp->queue_next = 0;
2168 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2169 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2170 u132_endp_queue_work(u132, endp, 0);
2175 static int queue_control_on_old_endpoint(struct u132 *u132,
2176 struct usb_host_endpoint *hep, struct urb *urb,
2177 struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2180 if (usb_addr == 0) {
2181 if (usb_pipein(urb->pipe)) {
2183 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2184 endp->urb_list[ENDP_QUEUE_MASK &
2185 endp->queue_last++] = urb;
2187 struct u132_urbq *urbq =
2188 kmalloc(sizeof(struct u132_urbq),
2191 endp->queue_size -= 1;
2194 list_add_tail(&urbq->urb_more,
2200 } else { /* usb_pipeout(urb->pipe) */
2201 struct u132_addr *addr = &u132->addr[usb_dev->devnum];
2202 int I = MAX_U132_UDEVS;
2205 struct u132_udev *udev = &u132->udev[++i];
2206 if (udev->usb_device) {
2209 udev->enumeration = 1;
2210 u132->addr[0].address = i;
2211 endp->udev_number = i;
2212 udev->udev_number = i;
2213 udev->usb_addr = usb_dev->devnum;
2214 u132_udev_init_kref(u132, udev);
2215 udev->endp_number_in[usb_endp] =
2217 u132_udev_get_kref(u132, udev);
2218 udev->endp_number_out[usb_endp] =
2220 udev->usb_device = usb_dev;
2221 ((u8 *) (urb->setup_packet))[2] =
2223 u132_udev_get_kref(u132, udev);
2228 dev_err(&u132->platform_dev->dev, "run out of d"
2233 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2234 endp->urb_list[ENDP_QUEUE_MASK &
2235 endp->queue_last++] = urb;
2237 struct u132_urbq *urbq =
2238 kmalloc(sizeof(struct u132_urbq),
2241 endp->queue_size -= 1;
2244 list_add_tail(&urbq->urb_more,
2251 } else { /*(usb_addr > 0) */
2252 u8 address = u132->addr[usb_addr].address;
2253 struct u132_udev *udev = &u132->udev[address];
2255 if (udev->enumeration == 2) {
2257 udev->enumeration = 2;
2258 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2259 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
2262 struct u132_urbq *urbq =
2263 kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
2265 endp->queue_size -= 1;
2268 list_add_tail(&urbq->urb_more, &endp->urb_more);
2276 static int u132_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *hep,
2277 struct urb *urb, gfp_t mem_flags)
2279 struct u132 *u132 = hcd_to_u132(hcd);
2280 if (irqs_disabled()) {
2281 if (__GFP_WAIT & mem_flags) {
2282 printk(KERN_ERR "invalid context for function that migh"
2287 if (u132->going > 1) {
2288 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2291 } else if (u132->going > 0) {
2292 dev_err(&u132->platform_dev->dev, "device is being removed urb="
2293 "%p status=%d\n", urb, urb->status);
2296 u8 usb_addr = usb_pipedevice(urb->pipe);
2297 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2298 struct usb_device *usb_dev = urb->dev;
2299 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
2300 u8 address = u132->addr[usb_addr].address;
2301 struct u132_udev *udev = &u132->udev[address];
2302 struct u132_endp *endp = hep->hcpriv;
2303 urb->actual_length = 0;
2307 spin_lock_irqsave(&endp->queue_lock.slock,
2309 retval = queue_int_on_old_endpoint(u132, udev,
2310 hep, urb, usb_dev, endp, usb_addr,
2312 spin_unlock_irqrestore(&endp->queue_lock.slock,
2317 u132_endp_queue_work(u132, endp,
2318 msecs_to_jiffies(urb->interval))
2322 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2324 } else { /*(endp == NULL) */
2325 return create_endpoint_and_queue_int(u132, udev,
2326 hep, urb, usb_dev, usb_addr, usb_endp,
2327 address, mem_flags);
2329 } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
2330 dev_err(&u132->platform_dev->dev, "the hardware does no"
2331 "t support PIPE_ISOCHRONOUS\n");
2333 } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
2334 u8 address = u132->addr[usb_addr].address;
2335 struct u132_udev *udev = &u132->udev[address];
2336 struct u132_endp *endp = hep->hcpriv;
2337 urb->actual_length = 0;
2341 spin_lock_irqsave(&endp->queue_lock.slock,
2343 retval = queue_bulk_on_old_endpoint(u132, udev,
2344 hep, urb, usb_dev, endp, usb_addr,
2346 spin_unlock_irqrestore(&endp->queue_lock.slock,
2351 u132_endp_queue_work(u132, endp, 0);
2354 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2357 return create_endpoint_and_queue_bulk(u132,
2358 udev, hep, urb, usb_dev, usb_addr,
2359 usb_endp, address, mem_flags);
2361 struct u132_endp *endp = hep->hcpriv;
2363 u8 *b = urb->setup_packet;
2365 char data[30 *3 + 4];
2367 int m = (sizeof(data) - 1) / 3;
2370 while (urb_size-- > 0) {
2372 } else if (i++ < m) {
2373 int w = sprintf(d, " %02X", *b++);
2377 d += sprintf(d, " ..");
2382 spin_lock_irqsave(&endp->queue_lock.slock,
2384 retval = queue_control_on_old_endpoint(u132,
2385 hep, urb, usb_dev, endp, usb_addr,
2387 spin_unlock_irqrestore(&endp->queue_lock.slock,
2392 u132_endp_queue_work(u132, endp, 0);
2395 } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2398 return create_endpoint_and_queue_control(u132,
2399 hep, urb, usb_dev, usb_addr, usb_endp,
2405 static int dequeue_from_overflow_chain(struct u132 *u132,
2406 struct u132_endp *endp, struct urb *urb)
2408 struct list_head *scan;
2409 struct list_head *head = &endp->urb_more;
2410 list_for_each(scan, head) {
2411 struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
2413 if (urbq->urb == urb) {
2414 struct usb_hcd *hcd = u132_to_hcd(u132);
2416 endp->queue_size -= 1;
2417 urb->error_count = 0;
2419 usb_hcd_giveback_urb(hcd, urb);
2424 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
2425 "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
2426 "\n", urb, endp->endp_number, endp, endp->ring->number,
2427 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2428 endp->usb_endp, endp->usb_addr, endp->queue_size,
2429 endp->queue_next, endp->queue_last);
2433 static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
2437 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2438 if (endp->queue_size == 0) {
2439 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
2440 "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
2441 endp->endp_number, endp, endp->ring->number,
2442 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2443 endp->usb_endp, endp->usb_addr);
2444 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2447 if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
2449 endp->dequeueing = 1;
2450 endp->edset_flush = 1;
2451 u132_endp_queue_work(u132, endp, 0);
2452 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2456 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2457 u132_hcd_abandon_urb(u132, endp, urb, urb->status);
2462 u16 queue_size = endp->queue_size;
2463 u16 queue_scan = endp->queue_next;
2464 struct urb **urb_slot = NULL;
2465 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2466 if (urb == endp->urb_list[ENDP_QUEUE_MASK &
2468 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2474 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2475 *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
2477 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2481 struct usb_hcd *hcd = u132_to_hcd(u132);
2482 endp->queue_size -= 1;
2483 if (list_empty(&endp->urb_more)) {
2484 spin_unlock_irqrestore(&endp->queue_lock.slock,
2487 struct list_head *next = endp->urb_more.next;
2488 struct u132_urbq *urbq = list_entry(next,
2489 struct u132_urbq, urb_more);
2491 *urb_slot = urbq->urb;
2492 spin_unlock_irqrestore(&endp->queue_lock.slock,
2495 } urb->error_count = 0;
2497 usb_hcd_giveback_urb(hcd, urb);
2499 } else if (list_empty(&endp->urb_more)) {
2500 dev_err(&u132->platform_dev->dev, "urb=%p not found in "
2501 "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
2502 "=%d size=%d next=%04X last=%04X\n", urb,
2503 endp->endp_number, endp, endp->ring->number,
2504 endp->input ? 'I' : ' ',
2505 endp->output ? 'O' : ' ', endp->usb_endp,
2506 endp->usb_addr, endp->queue_size,
2507 endp->queue_next, endp->queue_last);
2508 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2511 int retval = dequeue_from_overflow_chain(u132, endp,
2513 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2519 static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
2521 struct u132 *u132 = hcd_to_u132(hcd);
2522 if (u132->going > 2) {
2523 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2527 u8 usb_addr = usb_pipedevice(urb->pipe);
2528 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2529 u8 address = u132->addr[usb_addr].address;
2530 struct u132_udev *udev = &u132->udev[address];
2531 if (usb_pipein(urb->pipe)) {
2532 u8 endp_number = udev->endp_number_in[usb_endp];
2533 struct u132_endp *endp = u132->endp[endp_number - 1];
2534 return u132_endp_urb_dequeue(u132, endp, urb);
2536 u8 endp_number = udev->endp_number_out[usb_endp];
2537 struct u132_endp *endp = u132->endp[endp_number - 1];
2538 return u132_endp_urb_dequeue(u132, endp, urb);
2543 static void u132_endpoint_disable(struct usb_hcd *hcd,
2544 struct usb_host_endpoint *hep)
2546 struct u132 *u132 = hcd_to_u132(hcd);
2547 if (u132->going > 2) {
2548 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2551 struct u132_endp *endp = hep->hcpriv;
2553 u132_endp_put_kref(u132, endp);
2557 static int u132_get_frame(struct usb_hcd *hcd)
2559 struct u132 *u132 = hcd_to_u132(hcd);
2560 if (u132->going > 1) {
2561 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2564 } else if (u132->going > 0) {
2565 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2569 dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
2575 static int u132_roothub_descriptor(struct u132 *u132,
2576 struct usb_hub_descriptor *desc)
2582 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
2585 desc->bDescriptorType = 0x29;
2586 desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
2587 desc->bHubContrCurrent = 0;
2588 desc->bNbrPorts = u132->num_ports;
2589 temp = 1 + (u132->num_ports / 8);
2590 desc->bDescLength = 7 + 2 *temp;
2592 if (rh_a & RH_A_NPS)
2594 if (rh_a & RH_A_PSM)
2596 if (rh_a & RH_A_NOCP) {
2598 } else if (rh_a & RH_A_OCPM)
2600 desc->wHubCharacteristics = cpu_to_le16(temp);
2601 retval = u132_read_pcimem(u132, roothub.b, &rh_b);
2604 memset(desc->bitmap, 0xff, sizeof(desc->bitmap));
2605 desc->bitmap[0] = rh_b & RH_B_DR;
2606 if (u132->num_ports > 7) {
2607 desc->bitmap[1] = (rh_b & RH_B_DR) >> 8;
2608 desc->bitmap[2] = 0xff;
2610 desc->bitmap[1] = 0xff;
2614 static int u132_roothub_status(struct u132 *u132, __le32 *desc)
2617 int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
2618 *desc = cpu_to_le32(rh_status);
2622 static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
2624 if (wIndex == 0 || wIndex > u132->num_ports) {
2627 int port = wIndex - 1;
2628 u32 rh_portstatus = -1;
2629 int ret_portstatus = u132_read_pcimem(u132,
2630 roothub.portstatus[port], &rh_portstatus);
2631 *desc = cpu_to_le32(rh_portstatus);
2632 if (*(u16 *) (desc + 2)) {
2633 dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
2634 "ge = %08X\n", port, *desc);
2636 return ret_portstatus;
2641 /* this timer value might be vendor-specific ... */
2642 #define PORT_RESET_HW_MSEC 10
2643 #define PORT_RESET_MSEC 10
2644 /* wrap-aware logic morphed from <linux/jiffies.h> */
2645 #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
2646 static int u132_roothub_portreset(struct u132 *u132, int port_index)
2652 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2656 reset_done = now + PORT_RESET_MSEC;
2660 retval = u132_read_pcimem(u132,
2661 roothub.portstatus[port_index], &portstat);
2664 if (RH_PS_PRS & portstat) {
2668 } while (tick_before(now, reset_done));
2669 if (RH_PS_PRS & portstat)
2671 if (RH_PS_CCS & portstat) {
2672 if (RH_PS_PRSC & portstat) {
2673 retval = u132_write_pcimem(u132,
2674 roothub.portstatus[port_index],
2680 break; /* start the next reset,
2681 sleep till it's probably done */
2682 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2686 msleep(PORT_RESET_HW_MSEC);
2687 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2691 } while (tick_before(now, reset_done));
2695 static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
2698 if (wIndex == 0 || wIndex > u132->num_ports) {
2702 int port_index = wIndex - 1;
2703 struct u132_port *port = &u132->port[port_index];
2704 port->Status &= ~(1 << wValue);
2706 case USB_PORT_FEAT_SUSPEND:
2707 retval = u132_write_pcimem(u132,
2708 roothub.portstatus[port_index], RH_PS_PSS);
2712 case USB_PORT_FEAT_POWER:
2713 retval = u132_write_pcimem(u132,
2714 roothub.portstatus[port_index], RH_PS_PPS);
2718 case USB_PORT_FEAT_RESET:
2719 retval = u132_roothub_portreset(u132, port_index);
2729 static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
2732 if (wIndex == 0 || wIndex > u132->num_ports) {
2735 int port_index = wIndex - 1;
2738 struct u132_port *port = &u132->port[port_index];
2739 port->Status &= ~(1 << wValue);
2741 case USB_PORT_FEAT_ENABLE:
2744 case USB_PORT_FEAT_C_ENABLE:
2747 case USB_PORT_FEAT_SUSPEND:
2749 if ((u132->hc_control & OHCI_CTRL_HCFS)
2751 dev_err(&u132->platform_dev->dev, "TODO resume_"
2755 case USB_PORT_FEAT_C_SUSPEND:
2758 case USB_PORT_FEAT_POWER:
2761 case USB_PORT_FEAT_C_CONNECTION:
2764 case USB_PORT_FEAT_C_OVER_CURRENT:
2767 case USB_PORT_FEAT_C_RESET:
2773 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2782 /* the virtual root hub timer IRQ checks for hub status*/
2783 static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
2785 struct u132 *u132 = hcd_to_u132(hcd);
2786 if (u132->going > 1) {
2787 dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
2788 "ed %d\n", hcd, u132->going);
2790 } else if (u132->going > 0) {
2791 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
2796 int i, changed = 0, length = 1;
2797 if (u132->flags & OHCI_QUIRK_AMD756) {
2798 if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
2799 dev_err(&u132->platform_dev->dev, "bogus NDP, r"
2800 "ereads as NDP=%d\n",
2801 u132->hc_roothub_a & RH_A_NDP);
2805 if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) {
2806 buf[0] = changed = 1;
2809 if (u132->num_ports > 7) {
2813 for (i = 0; i < u132->num_ports; i++) {
2814 if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
2815 RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
2819 buf[0] |= 1 << (i + 1);
2821 buf[1] |= 1 << (i - 7);
2824 if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) {
2827 if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) {
2831 done:return changed ? length : 0;
2835 static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2836 u16 wIndex, char *buf, u16 wLength)
2838 struct u132 *u132 = hcd_to_u132(hcd);
2839 if (u132->going > 1) {
2840 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2843 } else if (u132->going > 0) {
2844 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2848 down(&u132->sw_lock);
2850 case ClearHubFeature:
2852 case C_HUB_OVER_CURRENT:
2853 case C_HUB_LOCAL_POWER:
2861 case C_HUB_OVER_CURRENT:
2862 case C_HUB_LOCAL_POWER:
2868 case ClearPortFeature:{
2869 retval = u132_roothub_clearportfeature(u132,
2875 case GetHubDescriptor:{
2876 retval = u132_roothub_descriptor(u132,
2877 (struct usb_hub_descriptor *)buf);
2883 retval = u132_roothub_status(u132,
2889 case GetPortStatus:{
2890 retval = u132_roothub_portstatus(u132,
2891 (__le32 *) buf, wIndex);
2896 case SetPortFeature:{
2897 retval = u132_roothub_setportfeature(u132,
2905 error:u132_disable(u132);
2908 stall:retval = -EPIPE;
2916 static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
2918 struct u132 *u132 = hcd_to_u132(hcd);
2919 if (u132->going > 1) {
2920 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2923 } else if (u132->going > 0) {
2924 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2930 static void u132_hub_irq_enable(struct usb_hcd *hcd)
2932 struct u132 *u132 = hcd_to_u132(hcd);
2933 if (u132->going > 1) {
2934 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2936 } else if (u132->going > 0)
2937 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2942 static int u132_hcd_suspend(struct usb_hcd *hcd, pm_message_t message)
2944 struct u132 *u132 = hcd_to_u132(hcd);
2945 if (u132->going > 1) {
2946 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2949 } else if (u132->going > 0) {
2950 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2956 static int u132_hcd_resume(struct usb_hcd *hcd)
2958 struct u132 *u132 = hcd_to_u132(hcd);
2959 if (u132->going > 1) {
2960 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2963 } else if (u132->going > 0) {
2964 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2970 static int u132_bus_suspend(struct usb_hcd *hcd)
2972 struct u132 *u132 = hcd_to_u132(hcd);
2973 if (u132->going > 1) {
2974 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2977 } else if (u132->going > 0) {
2978 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2984 static int u132_bus_resume(struct usb_hcd *hcd)
2986 struct u132 *u132 = hcd_to_u132(hcd);
2987 if (u132->going > 1) {
2988 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2991 } else if (u132->going > 0) {
2992 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2999 #define u132_hcd_suspend NULL
3000 #define u132_hcd_resume NULL
3001 #define u132_bus_suspend NULL
3002 #define u132_bus_resume NULL
3004 static struct hc_driver u132_hc_driver = {
3005 .description = hcd_name,
3006 .hcd_priv_size = sizeof(struct u132),
3008 .flags = HCD_USB11 | HCD_MEMORY,
3009 .reset = u132_hcd_reset,
3010 .start = u132_hcd_start,
3011 .suspend = u132_hcd_suspend,
3012 .resume = u132_hcd_resume,
3013 .stop = u132_hcd_stop,
3014 .urb_enqueue = u132_urb_enqueue,
3015 .urb_dequeue = u132_urb_dequeue,
3016 .endpoint_disable = u132_endpoint_disable,
3017 .get_frame_number = u132_get_frame,
3018 .hub_status_data = u132_hub_status_data,
3019 .hub_control = u132_hub_control,
3020 .bus_suspend = u132_bus_suspend,
3021 .bus_resume = u132_bus_resume,
3022 .start_port_reset = u132_start_port_reset,
3023 .hub_irq_enable = u132_hub_irq_enable,
3027 * This function may be called by the USB core whilst the "usb_all_devices_rwsem"
3028 * is held for writing, thus this module must not call usb_remove_hcd()
3029 * synchronously - but instead should immediately stop activity to the
3030 * device and asynchronously call usb_remove_hcd()
3032 static int __devexit u132_remove(struct platform_device *pdev)
3034 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3036 struct u132 *u132 = hcd_to_u132(hcd);
3038 if (u132->going++ > 1) {
3041 int rings = MAX_U132_RINGS;
3042 int endps = MAX_U132_ENDPS;
3044 down(&u132->sw_lock);
3045 u132_monitor_cancel_work(u132);
3046 while (rings-- > 0) {
3047 struct u132_ring *ring = &u132->ring[rings];
3048 u132_ring_cancel_work(u132, ring);
3049 } while (endps-- > 0) {
3050 struct u132_endp *endp = u132->endp[endps];
3052 u132_endp_cancel_work(u132, endp);
3055 printk(KERN_INFO "removing device u132.%d\n",
3056 u132->sequence_num);
3058 usb_remove_hcd(hcd);
3059 u132_u132_put_kref(u132);
3066 static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
3068 int rings = MAX_U132_RINGS;
3069 int ports = MAX_U132_PORTS;
3070 int addrs = MAX_U132_ADDRS;
3071 int udevs = MAX_U132_UDEVS;
3072 int endps = MAX_U132_ENDPS;
3073 u132->board = pdev->dev.platform_data;
3074 u132->platform_dev = pdev;
3077 init_MUTEX(&u132->sw_lock);
3078 init_MUTEX(&u132->scheduler_lock);
3079 while (rings-- > 0) {
3080 struct u132_ring *ring = &u132->ring[rings];
3082 ring->number = rings + 1;
3084 ring->curr_endp = NULL;
3085 INIT_DELAYED_WORK(&ring->scheduler,
3086 u132_hcd_ring_work_scheduler);
3087 } down(&u132->sw_lock);
3088 INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
3089 while (ports-- > 0) {
3090 struct u132_port *port = &u132->port[ports];
3096 } while (addrs-- > 0) {
3097 struct u132_addr *addr = &u132->addr[addrs];
3099 } while (udevs-- > 0) {
3100 struct u132_udev *udev = &u132->udev[udevs];
3101 int i = ARRAY_SIZE(udev->endp_number_in);
3102 int o = ARRAY_SIZE(udev->endp_number_out);
3103 udev->usb_device = NULL;
3104 udev->udev_number = 0;
3106 udev->portnumber = 0;
3108 udev->endp_number_in[i] = 0;
3111 udev->endp_number_out[o] = 0;
3114 while (endps-- > 0) {
3115 u132->endp[endps] = NULL;
3121 static int __devinit u132_probe(struct platform_device *pdev)
3123 struct usb_hcd *hcd;
3125 if (u132_exiting > 0) {
3127 } /* refuse to confuse usbcore */
3128 if (pdev->dev.dma_mask) {
3131 hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id);
3133 printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
3135 ftdi_elan_gone_away(pdev);
3139 struct u132 *u132 = hcd_to_u132(hcd);
3140 hcd->rsrc_start = 0;
3141 down(&u132_module_lock);
3142 list_add_tail(&u132->u132_list, &u132_static_list);
3143 u132->sequence_num = ++u132_instances;
3144 up(&u132_module_lock);
3145 u132_u132_init_kref(u132);
3146 u132_initialise(u132, pdev);
3147 hcd->product_desc = "ELAN U132 Host Controller";
3148 retval = usb_add_hcd(hcd, 0, 0);
3150 dev_err(&u132->platform_dev->dev, "init error %d\n",
3152 u132_u132_put_kref(u132);
3155 u132_monitor_queue_work(u132, 100);
3163 /* for this device there's no useful distinction between the controller
3164 * and its root hub, except that the root hub only gets direct PM calls
3165 * when CONFIG_USB_SUSPEND is enabled.
3167 static int u132_suspend(struct platform_device *pdev, pm_message_t state)
3169 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3170 struct u132 *u132 = hcd_to_u132(hcd);
3171 if (u132->going > 1) {
3172 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3175 } else if (u132->going > 0) {
3176 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3180 if (state.event == PM_EVENT_FREEZE) {
3181 retval = u132_bus_suspend(hcd);
3182 } else if (state.event == PM_EVENT_SUSPEND) {
3183 int ports = MAX_U132_PORTS;
3184 while (ports-- > 0) {
3185 port_power(u132, ports, 0);
3189 pdev->dev.power.power_state = state;
3194 static int u132_resume(struct platform_device *pdev)
3196 struct usb_hcd *hcd = platform_get_drvdata(pdev);
3197 struct u132 *u132 = hcd_to_u132(hcd);
3198 if (u132->going > 1) {
3199 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3202 } else if (u132->going > 0) {
3203 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3207 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
3208 int ports = MAX_U132_PORTS;
3209 while (ports-- > 0) {
3210 port_power(u132, ports, 1);
3214 pdev->dev.power.power_state = PMSG_ON;
3215 retval = u132_bus_resume(hcd);
3222 #define u132_suspend NULL
3223 #define u132_resume NULL
3226 * this driver is loaded explicitly by ftdi_u132
3228 * the platform_driver struct is static because it is per type of module
3230 static struct platform_driver u132_platform_driver = {
3231 .probe = u132_probe,
3232 .remove = __devexit_p(u132_remove),
3233 .suspend = u132_suspend,
3234 .resume = u132_resume,
3236 .name = (char *)hcd_name,
3237 .owner = THIS_MODULE,
3240 static int __init u132_hcd_init(void)
3243 INIT_LIST_HEAD(&u132_static_list);
3246 init_MUTEX(&u132_module_lock);
3249 printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__,
3251 workqueue = create_singlethread_workqueue("u132");
3252 retval = platform_driver_register(&u132_platform_driver);
3257 module_init(u132_hcd_init);
3258 static void __exit u132_hcd_exit(void)
3262 down(&u132_module_lock);
3264 up(&u132_module_lock);
3265 list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
3266 platform_device_unregister(u132->platform_dev);
3267 } platform_driver_unregister(&u132_platform_driver);
3268 printk(KERN_INFO "u132-hcd driver deregistered\n");
3269 wait_event(u132_hcd_wait, u132_instances == 0);
3270 flush_workqueue(workqueue);
3271 destroy_workqueue(workqueue);
3275 module_exit(u132_hcd_exit);
3276 MODULE_LICENSE("GPL");