X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/b4f5ad450602411b30e6d9849ce0406a93ffb597..adde7768a2eab2950a7628319ec832c63a00ff03:/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c index 541859661..72a252530 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c @@ -1,7 +1,7 @@ /* * ADM5120 HCD (Host Controller Driver) for USB * - * Copyright (C) 2007 Gabor Juhos + * Copyright (C) 2007,2008 Gabor Juhos * * This file was derived from: drivers/usb/host/ohci-hcd.c * (C) Copyright 1999 Roman Weissgaerber @@ -12,7 +12,10 @@ * [ (C) Copyright 1999 Linus Torvalds ] * [ (C) Copyright 1999 Gregory P. Smith] * - * This file is licenced under the GPL. + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * */ #include @@ -32,6 +35,7 @@ #include #include #include +#include #include #include @@ -42,7 +46,7 @@ #include "../core/hcd.h" #include "../core/hub.h" -#define DRIVER_VERSION "0.14.1" +#define DRIVER_VERSION "0.25.0" #define DRIVER_AUTHOR "Gabor Juhos " #define DRIVER_DESC "ADMtek USB 1.1 Host Controller Driver" @@ -80,8 +84,8 @@ static void admhc_stop(struct usb_hcd *hcd); /* * queue up an urb for anything except the root hub */ -static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, - struct urb *urb, gfp_t mem_flags) +static int admhc_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, + gfp_t mem_flags) { struct admhcd *ahcd = hcd_to_admhcd(hcd); struct ed *ed; @@ -93,12 +97,12 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, #ifdef ADMHC_VERBOSE_DEBUG spin_lock_irqsave(&ahcd->lock, flags); - urb_print(ahcd, urb, "ENQEUE", usb_pipein(pipe)); + urb_print(ahcd, urb, "ENQEUE", usb_pipein(pipe), -EINPROGRESS); spin_unlock_irqrestore(&ahcd->lock, flags); #endif /* every endpoint has an ed, locate and maybe (re)initialize it */ - ed = ed_get(ahcd, ep, urb->dev, pipe, urb->interval); + ed = ed_get(ahcd, urb->ep, urb->dev, pipe, urb->interval); if (!ed) return -ENOMEM; @@ -158,22 +162,17 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, goto fail; } - /* in case of unlink-during-submit */ - spin_lock(&urb->lock); - if (urb->status != -EINPROGRESS) { - spin_unlock(&urb->lock); - urb->hcpriv = urb_priv; - finish_urb(ahcd, urb); - ret = 0; + ret = usb_hcd_link_urb_to_ep(hcd, urb); + if (ret) goto fail; - } /* schedule the ed if needed */ if (ed->state == ED_IDLE) { ret = ed_schedule(ahcd, ed); - if (ret < 0) - goto fail0; - + if (ret < 0) { + usb_hcd_unlink_urb_from_ep(hcd, urb); + goto fail; + } if (ed->type == PIPE_ISOCHRONOUS) { u16 frame = admhc_frame_no(ahcd); @@ -201,8 +200,6 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, admhc_dump_ed(ahcd, "admhc_urb_enqueue", urb_priv->ed, 1); #endif -fail0: - spin_unlock(&urb->lock); fail: if (ret) urb_priv_free(ahcd, urb_priv); @@ -212,23 +209,28 @@ fail: } /* - * decouple the URB from the HC queues (TDs, urb_priv); it's - * already marked using urb->status. reporting is always done + * decouple the URB from the HC queues (TDs, urb_priv); + * reporting is always done * asynchronously, and we might be dealing with an urb that's * partially transferred, or an ED with other urbs being unlinked. */ -static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) +static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, + int status) { struct admhcd *ahcd = hcd_to_admhcd(hcd); unsigned long flags; + int ret; spin_lock_irqsave(&ahcd->lock, flags); #ifdef ADMHC_VERBOSE_DEBUG - urb_print(ahcd, urb, "DEQUEUE", 1); + urb_print(ahcd, urb, "DEQUEUE", 1, status); #endif - - if (HC_IS_RUNNING(hcd->state)) { + ret = usb_hcd_check_unlink_urb(hcd, urb, status); + if (ret) { + /* Do nothing */ + ; + } else if (HC_IS_RUNNING(hcd->state)) { struct urb_priv *urb_priv; /* Unless an IRQ completed the unlink while it was being @@ -246,11 +248,11 @@ static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) * any more ... just clean up every urb's memory. */ if (urb->hcpriv) - finish_urb(ahcd, urb); + finish_urb(ahcd, urb, status); } spin_unlock_irqrestore(&ahcd->lock, flags); - return 0; + return ret; } /*-------------------------------------------------------------------------*/ @@ -798,6 +800,14 @@ static int __init admhc_hcd_mod_init(void) pr_info("%s: block sizes: ed %Zd td %Zd\n", hcd_name, sizeof (struct ed), sizeof (struct td)); +#ifdef DEBUG + admhc_debug_root = debugfs_create_dir("admhc", NULL); + if (!admhc_debug_root) { + ret = -ENOENT; + goto error_debug; + } +#endif + #ifdef PLATFORM_DRIVER ret = platform_driver_register(&PLATFORM_DRIVER); if (ret < 0) @@ -809,6 +819,12 @@ static int __init admhc_hcd_mod_init(void) #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); error_platform: +#endif + +#ifdef DEBUG + debugfs_remove(admhc_debug_root); + admhc_debug_root = NULL; +error_debug: #endif return ret; } @@ -817,10 +833,13 @@ module_init(admhc_hcd_mod_init); static void __exit admhc_hcd_mod_exit(void) { platform_driver_unregister(&PLATFORM_DRIVER); +#ifdef DEBUG + debugfs_remove(admhc_debug_root); +#endif } module_exit(admhc_hcd_mod_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_INFO); MODULE_VERSION(DRIVER_VERSION); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2");