X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/1f01b9bc98782a1658e9ad0001784d714309fe7b..3329b43e7655951c4b496eb7c24b2af096fcbef7:/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c?ds=sidebyside 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 90889bfc0..041254647 100644 --- a/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c +++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-hcd.c @@ -1,21 +1,21 @@ /* - * OHCI HCD (Host Controller Driver) for USB. + * ADM5120 HCD (Host Controller Driver) for USB * - * (C) Copyright 1999 Roman Weissgaerber - * (C) Copyright 2000-2004 David Brownell + * Copyright (C) 2007-2008 Gabor Juhos * - * [ Initialisation is based on Linus' ] - * [ uhci code and gregs ahcd fragments ] - * [ (C) Copyright 1999 Linus Torvalds ] - * [ (C) Copyright 1999 Gregory P. Smith] + * This file was derived from: drivers/usb/host/ohci-hcd.c + * (C) Copyright 1999 Roman Weissgaerber + * (C) Copyright 2000-2004 David Brownell * + * [ Initialisation is based on Linus' ] + * [ uhci code and gregs ahcd fragments ] + * [ (C) Copyright 1999 Linus Torvalds ] + * [ (C) Copyright 1999 Gregory P. Smith] * - * OHCI is the main "non-Intel/VIA" standard for USB 1.1 host controller - * interfaces (though some non-x86 Intel chips use it). It supports - * smarter hardware than UHCI. A download link for the spec available - * through the http://www.usb.org website. + * 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. * - * This file is licenced under the GPL. */ #include @@ -35,8 +35,9 @@ #include #include #include +#include +#include -#include #include #include #include @@ -45,8 +46,8 @@ #include "../core/hcd.h" #include "../core/hub.h" -#define DRIVER_VERSION "v0.10.1" -#define DRIVER_AUTHOR "Gabor Juhos " +#define DRIVER_VERSION "0.27.0" +#define DRIVER_AUTHOR "Gabor Juhos " #define DRIVER_DESC "ADMtek USB 1.1 Host Controller Driver" /*-------------------------------------------------------------------------*/ @@ -57,12 +58,12 @@ #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR #define ADMHC_INTR_INIT \ - ( ADMHC_INTR_MIE | ADMHC_INTR_INSM | ADMHC_INTR_FATI \ - | ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI ) + (ADMHC_INTR_MIE | ADMHC_INTR_INSM | ADMHC_INTR_FATI \ + | ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI) /*-------------------------------------------------------------------------*/ -static const char hcd_name [] = "admhc-hcd"; +static const char hcd_name[] = "admhc-hcd"; #define STATECHANGE_DELAY msecs_to_jiffies(300) @@ -83,8 +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; @@ -96,12 +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; @@ -127,7 +128,7 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, else if ((urb->transfer_flags & URB_ZERO_PACKET) != 0 && (urb->transfer_buffer_length % usb_maxpacket(urb->dev, pipe, - usb_pipeout (pipe))) == 0) + usb_pipeout(pipe))) == 0) td_cnt++; break; case PIPE_INTERRUPT: @@ -142,10 +143,6 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, /* number of packets from URB */ td_cnt = urb->number_of_packets; break; - default: - /* paranoia */ - admhc_err(ahcd, "bad EP type %d", ed->type); - return -EINVAL; } urb_priv = urb_priv_alloc(ahcd, td_cnt, mem_flags); @@ -165,22 +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); @@ -207,8 +199,7 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep, #ifdef ADMHC_VERBOSE_DEBUG 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); @@ -218,23 +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 @@ -252,11 +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; } /*-------------------------------------------------------------------------*/ @@ -306,8 +302,8 @@ sanitize: goto rescan; case ED_IDLE: /* fully unlinked */ if (list_empty(&ed->td_list)) { - td_free (ahcd, ed->dummy); - ed_free (ahcd, ed); + td_free(ahcd, ed->dummy); + ed_free(ahcd, ed); break; } /* else FALL THROUGH */ @@ -344,7 +340,7 @@ static void admhc_usb_reset(struct admhcd *ahcd) #else /* FIXME */ ahcd->host_control = ADMHC_BUSS_RESET; - admhc_writel(ahcd, ahcd->host_control ,&ahcd->regs->host_control); + admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control); #endif } @@ -646,7 +642,7 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd) { struct admhcd *ahcd = hcd_to_admhcd(hcd); struct admhcd_regs __iomem *regs = ahcd->regs; - u32 ints; + u32 ints; ints = admhc_readl(ahcd, ®s->int_status); if ((ints & ADMHC_INTR_INTA) == 0) { @@ -782,7 +778,7 @@ static void admhc_stop(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_MIPS_ADM5120 +#ifdef CONFIG_ADM5120 #include "adm5120-drv.c" #define PLATFORM_DRIVER usb_hcd_adm5120_driver #endif @@ -791,7 +787,7 @@ static void admhc_stop(struct usb_hcd *hcd) #error "missing bus glue for admhc-hcd" #endif -#define DRIVER_INFO DRIVER_DESC " " DRIVER_VERSION +#define DRIVER_INFO DRIVER_DESC " version " DRIVER_VERSION static int __init admhc_hcd_mod_init(void) { @@ -802,7 +798,15 @@ static int __init admhc_hcd_mod_init(void) pr_info("%s: " DRIVER_INFO "\n", hcd_name); pr_info("%s: block sizes: ed %Zd td %Zd\n", hcd_name, - sizeof (struct ed), sizeof (struct td)); + 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); @@ -815,6 +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; } @@ -823,9 +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_LICENSE("GPL"); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL v2");