![Bill Pemberton](/assets/img/avatar_default.png)
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3261 lines
91 KiB
C
3261 lines
91 KiB
C
/*
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* Host Controller Driver for the Elan Digital Systems U132 adapter
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*
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* Copyright(C) 2006 Elan Digital Systems Limited
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* http://www.elandigitalsystems.com
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*
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* Author and Maintainer - Tony Olech - Elan Digital Systems
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* tony.olech@elandigitalsystems.com
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*
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* This program is free software;you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*
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* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
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* based on various USB host drivers in the 2.6.15 linux kernel
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* with constant reference to the 3rd Edition of Linux Device Drivers
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* published by O'Reilly
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*
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* The U132 adapter is a USB to CardBus adapter specifically designed
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* for PC cards that contain an OHCI host controller. Typical PC cards
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* are the Orange Mobile 3G Option GlobeTrotter Fusion card.
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*
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* The U132 adapter will *NOT *work with PC cards that do not contain
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* an OHCI controller. A simple way to test whether a PC card has an
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* OHCI controller as an interface is to insert the PC card directly
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* into a laptop(or desktop) with a CardBus slot and if "lspci" shows
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* a new USB controller and "lsusb -v" shows a new OHCI Host Controller
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* then there is a good chance that the U132 adapter will support the
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* PC card.(you also need the specific client driver for the PC card)
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*
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* Please inform the Author and Maintainer about any PC cards that
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* contain OHCI Host Controller and work when directly connected to
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* an embedded CardBus slot but do not work when they are connected
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* via an ELAN U132 adapter.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/delay.h>
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#include <linux/ioport.h>
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#include <linux/pci_ids.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/timer.h>
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#include <linux/list.h>
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#include <linux/interrupt.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include <linux/workqueue.h>
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#include <linux/platform_device.h>
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#include <linux/mutex.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/byteorder.h>
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/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
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* If you're going to try stuff like this, you need to split
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* out shareable stuff (register declarations?) into its own
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* file, maybe name <linux/usb/ohci.h>
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*/
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#include "ohci.h"
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#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
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#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
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OHCI_INTR_WDH)
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MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
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MODULE_DESCRIPTION("U132 USB Host Controller Driver");
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MODULE_LICENSE("GPL");
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#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
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INT_MODULE_PARM(testing, 0);
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/* Some boards misreport power switching/overcurrent*/
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static bool distrust_firmware = 1;
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module_param(distrust_firmware, bool, 0);
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MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
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"t setup");
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static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
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/*
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* u132_module_lock exists to protect access to global variables
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*
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*/
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static struct mutex u132_module_lock;
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static int u132_exiting;
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static int u132_instances;
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static struct list_head u132_static_list;
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/*
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* end of the global variables protected by u132_module_lock
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*/
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static struct workqueue_struct *workqueue;
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#define MAX_U132_PORTS 7
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#define MAX_U132_ADDRS 128
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#define MAX_U132_UDEVS 4
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#define MAX_U132_ENDPS 100
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#define MAX_U132_RINGS 4
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static const char *cc_to_text[16] = {
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"No Error ",
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"CRC Error ",
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"Bit Stuff ",
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"Data Togg ",
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"Stall ",
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"DevNotResp ",
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"PIDCheck ",
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"UnExpPID ",
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"DataOver ",
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"DataUnder ",
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"(for hw) ",
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"(for hw) ",
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"BufferOver ",
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"BuffUnder ",
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"(for HCD) ",
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"(for HCD) "
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};
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struct u132_port {
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struct u132 *u132;
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int reset;
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int enable;
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int power;
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int Status;
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};
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struct u132_addr {
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u8 address;
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};
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struct u132_udev {
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struct kref kref;
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struct usb_device *usb_device;
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u8 enumeration;
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u8 udev_number;
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u8 usb_addr;
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u8 portnumber;
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u8 endp_number_in[16];
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u8 endp_number_out[16];
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};
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#define ENDP_QUEUE_SHIFT 3
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#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
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#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
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struct u132_urbq {
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struct list_head urb_more;
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struct urb *urb;
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};
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struct u132_spin {
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spinlock_t slock;
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};
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struct u132_endp {
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struct kref kref;
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u8 udev_number;
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u8 endp_number;
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u8 usb_addr;
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u8 usb_endp;
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struct u132 *u132;
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struct list_head endp_ring;
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struct u132_ring *ring;
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unsigned toggle_bits:2;
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unsigned active:1;
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unsigned delayed:1;
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unsigned input:1;
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unsigned output:1;
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unsigned pipetype:2;
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unsigned dequeueing:1;
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unsigned edset_flush:1;
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unsigned spare_bits:14;
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unsigned long jiffies;
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struct usb_host_endpoint *hep;
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struct u132_spin queue_lock;
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u16 queue_size;
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u16 queue_last;
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u16 queue_next;
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struct urb *urb_list[ENDP_QUEUE_SIZE];
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struct list_head urb_more;
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struct delayed_work scheduler;
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};
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struct u132_ring {
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unsigned in_use:1;
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unsigned length:7;
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u8 number;
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struct u132 *u132;
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struct u132_endp *curr_endp;
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struct delayed_work scheduler;
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};
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struct u132 {
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struct kref kref;
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struct list_head u132_list;
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struct mutex sw_lock;
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struct mutex scheduler_lock;
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struct u132_platform_data *board;
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struct platform_device *platform_dev;
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struct u132_ring ring[MAX_U132_RINGS];
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int sequence_num;
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int going;
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int power;
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int reset;
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int num_ports;
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u32 hc_control;
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u32 hc_fminterval;
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u32 hc_roothub_status;
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u32 hc_roothub_a;
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u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
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int flags;
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unsigned long next_statechange;
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struct delayed_work monitor;
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int num_endpoints;
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struct u132_addr addr[MAX_U132_ADDRS];
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struct u132_udev udev[MAX_U132_UDEVS];
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struct u132_port port[MAX_U132_PORTS];
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struct u132_endp *endp[MAX_U132_ENDPS];
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};
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/*
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* these cannot be inlines because we need the structure offset!!
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* Does anyone have a better way?????
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*/
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#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
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offsetof(struct ohci_regs, member), 0, data);
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#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
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offsetof(struct ohci_regs, member), 0, data);
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#define u132_read_pcimem(u132, member, data) \
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usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
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ohci_regs, member), 0, data);
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#define u132_write_pcimem(u132, member, data) \
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usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
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ohci_regs, member), 0, data);
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static inline struct u132 *udev_to_u132(struct u132_udev *udev)
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{
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u8 udev_number = udev->udev_number;
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return container_of(udev, struct u132, udev[udev_number]);
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}
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static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
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{
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return (struct u132 *)(hcd->hcd_priv);
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}
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static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
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{
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return container_of((void *)u132, struct usb_hcd, hcd_priv);
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}
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static inline void u132_disable(struct u132 *u132)
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{
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u132_to_hcd(u132)->state = HC_STATE_HALT;
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}
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#define kref_to_u132(d) container_of(d, struct u132, kref)
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#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
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#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
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#include "../misc/usb_u132.h"
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static const char hcd_name[] = "u132_hcd";
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#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
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USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
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USB_PORT_STAT_C_RESET) << 16)
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static void u132_hcd_delete(struct kref *kref)
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{
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struct u132 *u132 = kref_to_u132(kref);
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struct platform_device *pdev = u132->platform_dev;
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struct usb_hcd *hcd = u132_to_hcd(u132);
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u132->going += 1;
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mutex_lock(&u132_module_lock);
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list_del_init(&u132->u132_list);
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u132_instances -= 1;
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mutex_unlock(&u132_module_lock);
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dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
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"2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
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usb_put_hcd(hcd);
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}
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static inline void u132_u132_put_kref(struct u132 *u132)
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{
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static inline void u132_u132_init_kref(struct u132 *u132)
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{
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kref_init(&u132->kref);
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}
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static void u132_udev_delete(struct kref *kref)
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{
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struct u132_udev *udev = kref_to_u132_udev(kref);
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udev->udev_number = 0;
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udev->usb_device = NULL;
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udev->usb_addr = 0;
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udev->enumeration = 0;
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}
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static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
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{
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kref_put(&udev->kref, u132_udev_delete);
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}
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static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
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{
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kref_get(&udev->kref);
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}
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static inline void u132_udev_init_kref(struct u132 *u132,
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struct u132_udev *udev)
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{
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kref_init(&udev->kref);
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}
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static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
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{
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
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unsigned int delta)
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{
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if (delta > 0) {
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if (queue_delayed_work(workqueue, &ring->scheduler, delta))
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return;
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} else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
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return;
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
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unsigned int delta)
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{
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kref_get(&u132->kref);
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u132_ring_requeue_work(u132, ring, delta);
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}
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static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
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{
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if (cancel_delayed_work(&ring->scheduler))
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static void u132_endp_delete(struct kref *kref)
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{
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struct u132_endp *endp = kref_to_u132_endp(kref);
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struct u132 *u132 = endp->u132;
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u8 usb_addr = endp->usb_addr;
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u8 usb_endp = endp->usb_endp;
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u8 address = u132->addr[usb_addr].address;
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struct u132_udev *udev = &u132->udev[address];
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u8 endp_number = endp->endp_number;
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struct usb_host_endpoint *hep = endp->hep;
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struct u132_ring *ring = endp->ring;
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struct list_head *head = &endp->endp_ring;
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ring->length -= 1;
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if (endp == ring->curr_endp) {
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if (list_empty(head)) {
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ring->curr_endp = NULL;
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list_del(head);
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} else {
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struct u132_endp *next_endp = list_entry(head->next,
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struct u132_endp, endp_ring);
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ring->curr_endp = next_endp;
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list_del(head);
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}
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} else
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list_del(head);
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if (endp->input) {
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udev->endp_number_in[usb_endp] = 0;
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u132_udev_put_kref(u132, udev);
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}
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if (endp->output) {
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udev->endp_number_out[usb_endp] = 0;
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u132_udev_put_kref(u132, udev);
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}
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u132->endp[endp_number - 1] = NULL;
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hep->hcpriv = NULL;
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kfree(endp);
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u132_u132_put_kref(u132);
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}
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static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
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{
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kref_put(&endp->kref, u132_endp_delete);
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}
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static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
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{
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kref_get(&endp->kref);
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}
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static inline void u132_endp_init_kref(struct u132 *u132,
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struct u132_endp *endp)
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{
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kref_init(&endp->kref);
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kref_get(&u132->kref);
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}
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static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
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unsigned int delta)
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{
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if (queue_delayed_work(workqueue, &endp->scheduler, delta))
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kref_get(&endp->kref);
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}
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static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
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{
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if (cancel_delayed_work(&endp->scheduler))
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kref_put(&endp->kref, u132_endp_delete);
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}
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static inline void u132_monitor_put_kref(struct u132 *u132)
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{
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
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{
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if (queue_delayed_work(workqueue, &u132->monitor, delta))
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kref_get(&u132->kref);
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}
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static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
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{
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if (!queue_delayed_work(workqueue, &u132->monitor, delta))
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static void u132_monitor_cancel_work(struct u132 *u132)
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{
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if (cancel_delayed_work(&u132->monitor))
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kref_put(&u132->kref, u132_hcd_delete);
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}
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static int read_roothub_info(struct u132 *u132)
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{
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u32 revision;
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int retval;
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retval = u132_read_pcimem(u132, revision, &revision);
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if (retval) {
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dev_err(&u132->platform_dev->dev, "error %d accessing device co"
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"ntrol\n", retval);
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return retval;
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} else if ((revision & 0xFF) == 0x10) {
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} else if ((revision & 0xFF) == 0x11) {
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} else {
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dev_err(&u132->platform_dev->dev, "device revision is not valid"
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" %08X\n", revision);
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return -ENODEV;
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}
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retval = u132_read_pcimem(u132, control, &u132->hc_control);
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if (retval) {
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dev_err(&u132->platform_dev->dev, "error %d accessing device co"
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"ntrol\n", retval);
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return retval;
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}
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retval = u132_read_pcimem(u132, roothub.status,
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&u132->hc_roothub_status);
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if (retval) {
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dev_err(&u132->platform_dev->dev, "error %d accessing device re"
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"g roothub.status\n", retval);
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return retval;
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}
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retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
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|
if (retval) {
|
|
dev_err(&u132->platform_dev->dev, "error %d accessing device re"
|
|
"g roothub.a\n", retval);
|
|
return retval;
|
|
}
|
|
{
|
|
int I = u132->num_ports;
|
|
int i = 0;
|
|
while (I-- > 0) {
|
|
retval = u132_read_pcimem(u132, roothub.portstatus[i],
|
|
&u132->hc_roothub_portstatus[i]);
|
|
if (retval) {
|
|
dev_err(&u132->platform_dev->dev, "error %d acc"
|
|
"essing device roothub.portstatus[%d]\n"
|
|
, retval, i);
|
|
return retval;
|
|
} else
|
|
i += 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void u132_hcd_monitor_work(struct work_struct *work)
|
|
{
|
|
struct u132 *u132 = container_of(work, struct u132, monitor.work);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
u132_monitor_put_kref(u132);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
u132_monitor_put_kref(u132);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
mutex_lock(&u132->sw_lock);
|
|
retval = read_roothub_info(u132);
|
|
if (retval) {
|
|
struct usb_hcd *hcd = u132_to_hcd(u132);
|
|
u132_disable(u132);
|
|
u132->going = 1;
|
|
mutex_unlock(&u132->sw_lock);
|
|
usb_hc_died(hcd);
|
|
ftdi_elan_gone_away(u132->platform_dev);
|
|
u132_monitor_put_kref(u132);
|
|
return;
|
|
} else {
|
|
u132_monitor_requeue_work(u132, 500);
|
|
mutex_unlock(&u132->sw_lock);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
|
|
struct urb *urb, int status)
|
|
{
|
|
struct u132_ring *ring;
|
|
unsigned long irqs;
|
|
struct usb_hcd *hcd = u132_to_hcd(u132);
|
|
urb->error_count = 0;
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
usb_hcd_unlink_urb_from_ep(hcd, urb);
|
|
endp->queue_next += 1;
|
|
if (ENDP_QUEUE_SIZE > --endp->queue_size) {
|
|
endp->active = 0;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
} else {
|
|
struct list_head *next = endp->urb_more.next;
|
|
struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
|
|
urb_more);
|
|
list_del(next);
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
|
|
urbq->urb;
|
|
endp->active = 0;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
kfree(urbq);
|
|
}
|
|
mutex_lock(&u132->scheduler_lock);
|
|
ring = endp->ring;
|
|
ring->in_use = 0;
|
|
u132_ring_cancel_work(u132, ring);
|
|
u132_ring_queue_work(u132, ring, 0);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
usb_hcd_giveback_urb(hcd, urb, status);
|
|
}
|
|
|
|
static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
|
|
struct urb *urb, int status)
|
|
{
|
|
u132_endp_put_kref(u132, endp);
|
|
}
|
|
|
|
static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
|
|
struct urb *urb, int status)
|
|
{
|
|
unsigned long irqs;
|
|
struct usb_hcd *hcd = u132_to_hcd(u132);
|
|
urb->error_count = 0;
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
usb_hcd_unlink_urb_from_ep(hcd, urb);
|
|
endp->queue_next += 1;
|
|
if (ENDP_QUEUE_SIZE > --endp->queue_size) {
|
|
endp->active = 0;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
} else {
|
|
struct list_head *next = endp->urb_more.next;
|
|
struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
|
|
urb_more);
|
|
list_del(next);
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
|
|
urbq->urb;
|
|
endp->active = 0;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
kfree(urbq);
|
|
}
|
|
usb_hcd_giveback_urb(hcd, urb, status);
|
|
}
|
|
|
|
static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
|
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
int halted, int skipped, int actual, int non_null))
|
|
{
|
|
return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
|
|
urb, address, endp->usb_endp, toggle_bits, callback);
|
|
}
|
|
|
|
static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
|
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
int halted, int skipped, int actual, int non_null))
|
|
{
|
|
return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
|
|
urb, address, endp->usb_endp, toggle_bits, callback);
|
|
}
|
|
|
|
static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
|
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
int halted, int skipped, int actual, int non_null))
|
|
{
|
|
return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
|
|
endp, urb, address, endp->usb_endp, toggle_bits, callback);
|
|
}
|
|
|
|
static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
|
|
struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
|
|
void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
|
|
int toggle_bits, int error_count, int condition_code, int repeat_number,
|
|
int halted, int skipped, int actual, int non_null))
|
|
{
|
|
return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
|
|
endp, urb, address, endp->usb_endp, toggle_bits, callback);
|
|
}
|
|
|
|
|
|
/*
|
|
* must not LOCK sw_lock
|
|
*
|
|
*/
|
|
static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
struct u132_ring *ring = endp->ring;
|
|
u8 *u = urb->transfer_buffer + urb->actual_length;
|
|
u8 *b = buf;
|
|
int L = len;
|
|
|
|
while (L-- > 0)
|
|
*u++ = *b++;
|
|
|
|
urb->actual_length += len;
|
|
if ((condition_code == TD_CC_NOERROR) &&
|
|
(urb->transfer_buffer_length > urb->actual_length)) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
if (urb->actual_length > 0) {
|
|
int retval;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_single(u132, ring, endp, urb,
|
|
address, endp->toggle_bits,
|
|
u132_hcd_interrupt_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
retval);
|
|
} else {
|
|
ring->in_use = 0;
|
|
endp->active = 0;
|
|
endp->jiffies = jiffies +
|
|
msecs_to_jiffies(urb->interval);
|
|
u132_ring_cancel_work(u132, ring);
|
|
u132_ring_queue_work(u132, ring, 0);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
}
|
|
return;
|
|
} else if ((condition_code == TD_DATAUNDERRUN) &&
|
|
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else {
|
|
if (condition_code == TD_CC_NOERROR) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp,
|
|
0, 1 & toggle_bits);
|
|
} else if (condition_code == TD_CC_STALL) {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp,
|
|
0, 0);
|
|
} else {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp,
|
|
0, 0);
|
|
dev_err(&u132->platform_dev->dev, "urb=%p givin"
|
|
"g back INTERRUPT %s\n", urb,
|
|
cc_to_text[condition_code]);
|
|
}
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
}
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
struct u132_ring *ring = endp->ring;
|
|
urb->actual_length += len;
|
|
endp->toggle_bits = toggle_bits;
|
|
if (urb->transfer_buffer_length > urb->actual_length) {
|
|
int retval;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_output(u132, ring, endp, urb, address,
|
|
endp->toggle_bits, u132_hcd_bulk_output_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
struct u132_ring *ring = endp->ring;
|
|
u8 *u = urb->transfer_buffer + urb->actual_length;
|
|
u8 *b = buf;
|
|
int L = len;
|
|
|
|
while (L-- > 0)
|
|
*u++ = *b++;
|
|
|
|
urb->actual_length += len;
|
|
if ((condition_code == TD_CC_NOERROR) &&
|
|
(urb->transfer_buffer_length > urb->actual_length)) {
|
|
int retval;
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
|
|
ring->number, endp, urb, address,
|
|
endp->usb_endp, endp->toggle_bits,
|
|
u132_hcd_bulk_input_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else if (condition_code == TD_CC_NOERROR) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
} else if ((condition_code == TD_DATAUNDERRUN) &&
|
|
((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else if (condition_code == TD_DATAUNDERRUN) {
|
|
endp->toggle_bits = toggle_bits;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0,
|
|
1 & toggle_bits);
|
|
dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
|
|
") giving back BULK IN %s\n", urb,
|
|
cc_to_text[condition_code]);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else if (condition_code == TD_CC_STALL) {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
} else {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
|
|
dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
|
|
"ULK IN code=%d %s\n", urb, condition_code,
|
|
cc_to_text[condition_code]);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
}
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
struct u132_ring *ring = endp->ring;
|
|
u8 *u = urb->transfer_buffer;
|
|
u8 *b = buf;
|
|
int L = len;
|
|
|
|
while (L-- > 0)
|
|
*u++ = *b++;
|
|
|
|
urb->actual_length = len;
|
|
if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
|
|
TD_DATAUNDERRUN) && ((urb->transfer_flags &
|
|
URB_SHORT_NOT_OK) == 0))) {
|
|
int retval;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
|
|
ring->number, endp, urb, address,
|
|
endp->usb_endp, 0x3,
|
|
u132_hcd_configure_empty_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else if (condition_code == TD_CC_STALL) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
|
|
"NPUT STALL urb %p\n", urb);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
} else {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
|
|
"PUT %s urb %p\n", cc_to_text[condition_code],
|
|
urb);
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
cc_to_error[condition_code]);
|
|
return;
|
|
}
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
if (usb_pipein(urb->pipe)) {
|
|
int retval;
|
|
struct u132_ring *ring = endp->ring;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
|
|
ring->number, endp, urb, address,
|
|
endp->usb_endp, 0,
|
|
u132_hcd_configure_input_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
struct u132_ring *ring = endp->ring;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
|
|
ring->number, endp, urb, address,
|
|
endp->usb_endp, 0,
|
|
u132_hcd_configure_empty_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
}
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
|
|
u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
u132->addr[0].address = 0;
|
|
endp->usb_addr = udev->usb_addr;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
|
|
u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
int retval;
|
|
struct u132_ring *ring = endp->ring;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
|
|
ring->number, endp, urb, 0, endp->usb_endp, 0,
|
|
u132_hcd_enumeration_empty_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
int retval;
|
|
struct u132_ring *ring = endp->ring;
|
|
u8 *u = urb->transfer_buffer;
|
|
u8 *b = buf;
|
|
int L = len;
|
|
|
|
while (L-- > 0)
|
|
*u++ = *b++;
|
|
|
|
urb->actual_length = len;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
|
|
ring->number, endp, urb, address, endp->usb_endp, 0x3,
|
|
u132_hcd_initial_empty_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
|
|
int len, int toggle_bits, int error_count, int condition_code,
|
|
int repeat_number, int halted, int skipped, int actual, int non_null)
|
|
{
|
|
struct u132_endp *endp = data;
|
|
struct u132 *u132 = endp->u132;
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (endp->dequeueing) {
|
|
endp->dequeueing = 0;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
|
|
return;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
|
|
return;
|
|
} else if (!urb->unlinked) {
|
|
int retval;
|
|
struct u132_ring *ring = endp->ring;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = usb_ftdi_elan_edset_input(u132->platform_dev,
|
|
ring->number, endp, urb, address, endp->usb_endp, 0,
|
|
u132_hcd_initial_input_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p "
|
|
"unlinked=%d\n", urb, urb->unlinked);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_hcd_giveback_urb(u132, endp, urb, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* this work function is only executed from the work queue
|
|
*
|
|
*/
|
|
static void u132_hcd_ring_work_scheduler(struct work_struct *work)
|
|
{
|
|
struct u132_ring *ring =
|
|
container_of(work, struct u132_ring, scheduler.work);
|
|
struct u132 *u132 = ring->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_ring_put_kref(u132, ring);
|
|
return;
|
|
} else if (ring->curr_endp) {
|
|
struct u132_endp *last_endp = ring->curr_endp;
|
|
struct list_head *scan;
|
|
struct list_head *head = &last_endp->endp_ring;
|
|
unsigned long wakeup = 0;
|
|
list_for_each(scan, head) {
|
|
struct u132_endp *endp = list_entry(scan,
|
|
struct u132_endp, endp_ring);
|
|
if (endp->queue_next == endp->queue_last) {
|
|
} else if ((endp->delayed == 0)
|
|
|| time_after_eq(jiffies, endp->jiffies)) {
|
|
ring->curr_endp = endp;
|
|
u132_endp_cancel_work(u132, last_endp);
|
|
u132_endp_queue_work(u132, last_endp, 0);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_ring_put_kref(u132, ring);
|
|
return;
|
|
} else {
|
|
unsigned long delta = endp->jiffies - jiffies;
|
|
if (delta > wakeup)
|
|
wakeup = delta;
|
|
}
|
|
}
|
|
if (last_endp->queue_next == last_endp->queue_last) {
|
|
} else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
|
|
last_endp->jiffies)) {
|
|
u132_endp_cancel_work(u132, last_endp);
|
|
u132_endp_queue_work(u132, last_endp, 0);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_ring_put_kref(u132, ring);
|
|
return;
|
|
} else {
|
|
unsigned long delta = last_endp->jiffies - jiffies;
|
|
if (delta > wakeup)
|
|
wakeup = delta;
|
|
}
|
|
if (wakeup > 0) {
|
|
u132_ring_requeue_work(u132, ring, wakeup);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
return;
|
|
} else {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_ring_put_kref(u132, ring);
|
|
return;
|
|
}
|
|
} else {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_ring_put_kref(u132, ring);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void u132_hcd_endp_work_scheduler(struct work_struct *work)
|
|
{
|
|
struct u132_ring *ring;
|
|
struct u132_endp *endp =
|
|
container_of(work, struct u132_endp, scheduler.work);
|
|
struct u132 *u132 = endp->u132;
|
|
mutex_lock(&u132->scheduler_lock);
|
|
ring = endp->ring;
|
|
if (endp->edset_flush) {
|
|
endp->edset_flush = 0;
|
|
if (endp->dequeueing)
|
|
usb_ftdi_elan_edset_flush(u132->platform_dev,
|
|
ring->number, endp);
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else if (endp->active) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else if (endp->queue_next == endp->queue_last) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else if (endp->pipetype == PIPE_INTERRUPT) {
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_next];
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_single(u132, ring, endp, urb, address,
|
|
endp->toggle_bits, u132_hcd_interrupt_recv);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
}
|
|
} else if (endp->pipetype == PIPE_CONTROL) {
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else if (address == 0) {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_next];
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_setup(u132, ring, endp, urb, address,
|
|
0x2, u132_hcd_initial_setup_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else if (endp->usb_addr == 0) {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_next];
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
|
|
u132_hcd_enumeration_address_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_next];
|
|
address = u132->addr[endp->usb_addr].address;
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_setup(u132, ring, endp, urb, address,
|
|
0x2, u132_hcd_configure_setup_sent);
|
|
if (retval != 0)
|
|
u132_hcd_giveback_urb(u132, endp, urb, retval);
|
|
return;
|
|
}
|
|
} else {
|
|
if (endp->input) {
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[
|
|
ENDP_QUEUE_MASK & endp->queue_next];
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_input(u132, ring, endp, urb,
|
|
address, endp->toggle_bits,
|
|
u132_hcd_bulk_input_recv);
|
|
if (retval == 0) {
|
|
} else
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
retval);
|
|
return;
|
|
}
|
|
} else { /* output pipe */
|
|
u8 address = u132->addr[endp->usb_addr].address;
|
|
if (ring->in_use) {
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
u132_endp_put_kref(u132, endp);
|
|
return;
|
|
} else {
|
|
int retval;
|
|
struct urb *urb = endp->urb_list[
|
|
ENDP_QUEUE_MASK & endp->queue_next];
|
|
endp->active = 1;
|
|
ring->curr_endp = endp;
|
|
ring->in_use = 1;
|
|
mutex_unlock(&u132->scheduler_lock);
|
|
retval = edset_output(u132, ring, endp, urb,
|
|
address, endp->toggle_bits,
|
|
u132_hcd_bulk_output_sent);
|
|
if (retval == 0) {
|
|
} else
|
|
u132_hcd_giveback_urb(u132, endp, urb,
|
|
retval);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#ifdef CONFIG_PM
|
|
|
|
static void port_power(struct u132 *u132, int pn, int is_on)
|
|
{
|
|
u132->port[pn].power = is_on;
|
|
}
|
|
|
|
#endif
|
|
|
|
static void u132_power(struct u132 *u132, int is_on)
|
|
{
|
|
struct usb_hcd *hcd = u132_to_hcd(u132)
|
|
; /* hub is inactive unless the port is powered */
|
|
if (is_on) {
|
|
if (u132->power)
|
|
return;
|
|
u132->power = 1;
|
|
} else {
|
|
u132->power = 0;
|
|
hcd->state = HC_STATE_HALT;
|
|
}
|
|
}
|
|
|
|
static int u132_periodic_reinit(struct u132 *u132)
|
|
{
|
|
int retval;
|
|
u32 fi = u132->hc_fminterval & 0x03fff;
|
|
u32 fit;
|
|
u32 fminterval;
|
|
retval = u132_read_pcimem(u132, fminterval, &fminterval);
|
|
if (retval)
|
|
return retval;
|
|
fit = fminterval & FIT;
|
|
retval = u132_write_pcimem(u132, fminterval,
|
|
(fit ^ FIT) | u132->hc_fminterval);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, periodicstart,
|
|
((9 * fi) / 10) & 0x3fff);
|
|
if (retval)
|
|
return retval;
|
|
return 0;
|
|
}
|
|
|
|
static char *hcfs2string(int state)
|
|
{
|
|
switch (state) {
|
|
case OHCI_USB_RESET:
|
|
return "reset";
|
|
case OHCI_USB_RESUME:
|
|
return "resume";
|
|
case OHCI_USB_OPER:
|
|
return "operational";
|
|
case OHCI_USB_SUSPEND:
|
|
return "suspend";
|
|
}
|
|
return "?";
|
|
}
|
|
|
|
static int u132_init(struct u132 *u132)
|
|
{
|
|
int retval;
|
|
u32 control;
|
|
u132_disable(u132);
|
|
u132->next_statechange = jiffies;
|
|
retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
if (u132->num_ports == 0) {
|
|
u32 rh_a = -1;
|
|
retval = u132_read_pcimem(u132, roothub.a, &rh_a);
|
|
if (retval)
|
|
return retval;
|
|
u132->num_ports = rh_a & RH_A_NDP;
|
|
retval = read_roothub_info(u132);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
if (u132->num_ports > MAX_U132_PORTS)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Start an OHCI controller, set the BUS operational
|
|
* resets USB and controller
|
|
* enable interrupts
|
|
*/
|
|
static int u132_run(struct u132 *u132)
|
|
{
|
|
int retval;
|
|
u32 control;
|
|
u32 status;
|
|
u32 fminterval;
|
|
u32 periodicstart;
|
|
u32 cmdstatus;
|
|
u32 roothub_a;
|
|
int mask = OHCI_INTR_INIT;
|
|
int first = u132->hc_fminterval == 0;
|
|
int sleep_time = 0;
|
|
int reset_timeout = 30; /* ... allow extra time */
|
|
u132_disable(u132);
|
|
if (first) {
|
|
u32 temp;
|
|
retval = u132_read_pcimem(u132, fminterval, &temp);
|
|
if (retval)
|
|
return retval;
|
|
u132->hc_fminterval = temp & 0x3fff;
|
|
u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
|
|
}
|
|
retval = u132_read_pcimem(u132, control, &u132->hc_control);
|
|
if (retval)
|
|
return retval;
|
|
dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
|
|
"= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
|
|
u132->hc_control);
|
|
switch (u132->hc_control & OHCI_CTRL_HCFS) {
|
|
case OHCI_USB_OPER:
|
|
sleep_time = 0;
|
|
break;
|
|
case OHCI_USB_SUSPEND:
|
|
case OHCI_USB_RESUME:
|
|
u132->hc_control &= OHCI_CTRL_RWC;
|
|
u132->hc_control |= OHCI_USB_RESUME;
|
|
sleep_time = 10;
|
|
break;
|
|
default:
|
|
u132->hc_control &= OHCI_CTRL_RWC;
|
|
u132->hc_control |= OHCI_USB_RESET;
|
|
sleep_time = 50;
|
|
break;
|
|
}
|
|
retval = u132_write_pcimem(u132, control, u132->hc_control);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
msleep(sleep_time);
|
|
retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
|
|
if (retval)
|
|
return retval;
|
|
if (!(roothub_a & RH_A_NPS)) {
|
|
int temp; /* power down each port */
|
|
for (temp = 0; temp < u132->num_ports; temp++) {
|
|
retval = u132_write_pcimem(u132,
|
|
roothub.portstatus[temp], RH_PS_LSDA);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
}
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
retry:
|
|
retval = u132_read_pcimem(u132, cmdstatus, &status);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
|
|
if (retval)
|
|
return retval;
|
|
extra: {
|
|
retval = u132_read_pcimem(u132, cmdstatus, &status);
|
|
if (retval)
|
|
return retval;
|
|
if (0 != (status & OHCI_HCR)) {
|
|
if (--reset_timeout == 0) {
|
|
dev_err(&u132->platform_dev->dev, "USB HC reset"
|
|
" timed out!\n");
|
|
return -ENODEV;
|
|
} else {
|
|
msleep(5);
|
|
goto extra;
|
|
}
|
|
}
|
|
}
|
|
if (u132->flags & OHCI_QUIRK_INITRESET) {
|
|
retval = u132_write_pcimem(u132, control, u132->hc_control);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, hcca, 0x00000000);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_periodic_reinit(u132);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, fminterval, &fminterval);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
|
|
if (retval)
|
|
return retval;
|
|
if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
|
|
if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
|
|
u132->flags |= OHCI_QUIRK_INITRESET;
|
|
goto retry;
|
|
} else
|
|
dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
|
|
"\n", fminterval, periodicstart);
|
|
} /* start controller operations */
|
|
u132->hc_control &= OHCI_CTRL_RWC;
|
|
u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
|
|
retval = u132_write_pcimem(u132, control, u132->hc_control);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
u132_to_hcd(u132)->state = HC_STATE_RUNNING;
|
|
retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, intrstatus, mask);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, intrdisable,
|
|
OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
|
|
OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
|
|
OHCI_INTR_SO);
|
|
if (retval)
|
|
return retval; /* handle root hub init quirks ... */
|
|
retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
|
|
if (retval)
|
|
return retval;
|
|
roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
|
|
if (u132->flags & OHCI_QUIRK_SUPERIO) {
|
|
roothub_a |= RH_A_NOCP;
|
|
roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
|
|
retval = u132_write_pcimem(u132, roothub.a, roothub_a);
|
|
if (retval)
|
|
return retval;
|
|
} else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
|
|
roothub_a |= RH_A_NPS;
|
|
retval = u132_write_pcimem(u132, roothub.a, roothub_a);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_write_pcimem(u132, roothub.b,
|
|
(roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
|
|
if (retval)
|
|
return retval;
|
|
retval = u132_read_pcimem(u132, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
mdelay((roothub_a >> 23) & 0x1fe);
|
|
u132_to_hcd(u132)->state = HC_STATE_RUNNING;
|
|
return 0;
|
|
}
|
|
|
|
static void u132_hcd_stop(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
|
|
"een removed %d\n", u132, hcd, u132->going);
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
|
|
"ed\n", hcd);
|
|
} else {
|
|
mutex_lock(&u132->sw_lock);
|
|
msleep(100);
|
|
u132_power(u132, 0);
|
|
mutex_unlock(&u132->sw_lock);
|
|
}
|
|
}
|
|
|
|
static int u132_hcd_start(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else if (hcd->self.controller) {
|
|
int retval;
|
|
struct platform_device *pdev =
|
|
to_platform_device(hcd->self.controller);
|
|
u16 vendor = ((struct u132_platform_data *)
|
|
(pdev->dev.platform_data))->vendor;
|
|
u16 device = ((struct u132_platform_data *)
|
|
(pdev->dev.platform_data))->device;
|
|
mutex_lock(&u132->sw_lock);
|
|
msleep(10);
|
|
if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
|
|
u132->flags = OHCI_QUIRK_AMD756;
|
|
} else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
|
|
dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
|
|
"ounds unavailable\n");
|
|
} else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
|
|
u132->flags |= OHCI_QUIRK_ZFMICRO;
|
|
retval = u132_run(u132);
|
|
if (retval) {
|
|
u132_disable(u132);
|
|
u132->going = 1;
|
|
}
|
|
msleep(100);
|
|
mutex_unlock(&u132->sw_lock);
|
|
return retval;
|
|
} else {
|
|
dev_err(&u132->platform_dev->dev, "platform_device missing\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
static int u132_hcd_reset(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int retval;
|
|
mutex_lock(&u132->sw_lock);
|
|
retval = u132_init(u132);
|
|
if (retval) {
|
|
u132_disable(u132);
|
|
u132->going = 1;
|
|
}
|
|
mutex_unlock(&u132->sw_lock);
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
static int create_endpoint_and_queue_int(struct u132 *u132,
|
|
struct u132_udev *udev, struct urb *urb,
|
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
|
|
gfp_t mem_flags)
|
|
{
|
|
struct u132_ring *ring;
|
|
unsigned long irqs;
|
|
int rc;
|
|
u8 endp_number;
|
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
|
|
|
|
if (!endp)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&endp->queue_lock.slock);
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
|
|
if (rc) {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
kfree(endp);
|
|
return rc;
|
|
}
|
|
|
|
endp_number = ++u132->num_endpoints;
|
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
|
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
|
|
INIT_LIST_HEAD(&endp->urb_more);
|
|
ring = endp->ring = &u132->ring[0];
|
|
if (ring->curr_endp) {
|
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
|
|
} else {
|
|
INIT_LIST_HEAD(&endp->endp_ring);
|
|
ring->curr_endp = endp;
|
|
}
|
|
ring->length += 1;
|
|
endp->dequeueing = 0;
|
|
endp->edset_flush = 0;
|
|
endp->active = 0;
|
|
endp->delayed = 0;
|
|
endp->endp_number = endp_number;
|
|
endp->u132 = u132;
|
|
endp->hep = urb->ep;
|
|
endp->pipetype = usb_pipetype(urb->pipe);
|
|
u132_endp_init_kref(u132, endp);
|
|
if (usb_pipein(urb->pipe)) {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, usb_endp, 0, 0);
|
|
endp->input = 1;
|
|
endp->output = 0;
|
|
udev->endp_number_in[usb_endp] = endp_number;
|
|
u132_udev_get_kref(u132, udev);
|
|
} else {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, usb_endp, 1, 0);
|
|
endp->input = 0;
|
|
endp->output = 1;
|
|
udev->endp_number_out[usb_endp] = endp_number;
|
|
u132_udev_get_kref(u132, udev);
|
|
}
|
|
urb->hcpriv = u132;
|
|
endp->delayed = 1;
|
|
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
|
|
endp->udev_number = address;
|
|
endp->usb_addr = usb_addr;
|
|
endp->usb_endp = usb_endp;
|
|
endp->queue_size = 1;
|
|
endp->queue_last = 0;
|
|
endp->queue_next = 0;
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
|
|
return 0;
|
|
}
|
|
|
|
static int queue_int_on_old_endpoint(struct u132 *u132,
|
|
struct u132_udev *udev, struct urb *urb,
|
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
|
|
u8 usb_endp, u8 address)
|
|
{
|
|
urb->hcpriv = u132;
|
|
endp->delayed = 1;
|
|
endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
|
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
} else {
|
|
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
|
|
GFP_ATOMIC);
|
|
if (urbq == NULL) {
|
|
endp->queue_size -= 1;
|
|
return -ENOMEM;
|
|
} else {
|
|
list_add_tail(&urbq->urb_more, &endp->urb_more);
|
|
urbq->urb = urb;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int create_endpoint_and_queue_bulk(struct u132 *u132,
|
|
struct u132_udev *udev, struct urb *urb,
|
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
|
|
gfp_t mem_flags)
|
|
{
|
|
int ring_number;
|
|
struct u132_ring *ring;
|
|
unsigned long irqs;
|
|
int rc;
|
|
u8 endp_number;
|
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
|
|
|
|
if (!endp)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&endp->queue_lock.slock);
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
|
|
if (rc) {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
kfree(endp);
|
|
return rc;
|
|
}
|
|
|
|
endp_number = ++u132->num_endpoints;
|
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
|
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
|
|
INIT_LIST_HEAD(&endp->urb_more);
|
|
endp->dequeueing = 0;
|
|
endp->edset_flush = 0;
|
|
endp->active = 0;
|
|
endp->delayed = 0;
|
|
endp->endp_number = endp_number;
|
|
endp->u132 = u132;
|
|
endp->hep = urb->ep;
|
|
endp->pipetype = usb_pipetype(urb->pipe);
|
|
u132_endp_init_kref(u132, endp);
|
|
if (usb_pipein(urb->pipe)) {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, usb_endp, 0, 0);
|
|
ring_number = 3;
|
|
endp->input = 1;
|
|
endp->output = 0;
|
|
udev->endp_number_in[usb_endp] = endp_number;
|
|
u132_udev_get_kref(u132, udev);
|
|
} else {
|
|
endp->toggle_bits = 0x2;
|
|
usb_settoggle(udev->usb_device, usb_endp, 1, 0);
|
|
ring_number = 2;
|
|
endp->input = 0;
|
|
endp->output = 1;
|
|
udev->endp_number_out[usb_endp] = endp_number;
|
|
u132_udev_get_kref(u132, udev);
|
|
}
|
|
ring = endp->ring = &u132->ring[ring_number - 1];
|
|
if (ring->curr_endp) {
|
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
|
|
} else {
|
|
INIT_LIST_HEAD(&endp->endp_ring);
|
|
ring->curr_endp = endp;
|
|
}
|
|
ring->length += 1;
|
|
urb->hcpriv = u132;
|
|
endp->udev_number = address;
|
|
endp->usb_addr = usb_addr;
|
|
endp->usb_endp = usb_endp;
|
|
endp->queue_size = 1;
|
|
endp->queue_last = 0;
|
|
endp->queue_next = 0;
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
|
|
struct urb *urb,
|
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
|
|
u8 usb_endp, u8 address)
|
|
{
|
|
urb->hcpriv = u132;
|
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
} else {
|
|
struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
|
|
GFP_ATOMIC);
|
|
if (urbq == NULL) {
|
|
endp->queue_size -= 1;
|
|
return -ENOMEM;
|
|
} else {
|
|
list_add_tail(&urbq->urb_more, &endp->urb_more);
|
|
urbq->urb = urb;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int create_endpoint_and_queue_control(struct u132 *u132,
|
|
struct urb *urb,
|
|
struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
|
|
gfp_t mem_flags)
|
|
{
|
|
struct u132_ring *ring;
|
|
unsigned long irqs;
|
|
int rc;
|
|
u8 endp_number;
|
|
struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags);
|
|
|
|
if (!endp)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&endp->queue_lock.slock);
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb);
|
|
if (rc) {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
kfree(endp);
|
|
return rc;
|
|
}
|
|
|
|
endp_number = ++u132->num_endpoints;
|
|
urb->ep->hcpriv = u132->endp[endp_number - 1] = endp;
|
|
INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
|
|
INIT_LIST_HEAD(&endp->urb_more);
|
|
ring = endp->ring = &u132->ring[0];
|
|
if (ring->curr_endp) {
|
|
list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
|
|
} else {
|
|
INIT_LIST_HEAD(&endp->endp_ring);
|
|
ring->curr_endp = endp;
|
|
}
|
|
ring->length += 1;
|
|
endp->dequeueing = 0;
|
|
endp->edset_flush = 0;
|
|
endp->active = 0;
|
|
endp->delayed = 0;
|
|
endp->endp_number = endp_number;
|
|
endp->u132 = u132;
|
|
endp->hep = urb->ep;
|
|
u132_endp_init_kref(u132, endp);
|
|
u132_endp_get_kref(u132, endp);
|
|
if (usb_addr == 0) {
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
endp->udev_number = address;
|
|
endp->usb_addr = usb_addr;
|
|
endp->usb_endp = usb_endp;
|
|
endp->input = 1;
|
|
endp->output = 1;
|
|
endp->pipetype = usb_pipetype(urb->pipe);
|
|
u132_udev_init_kref(u132, udev);
|
|
u132_udev_get_kref(u132, udev);
|
|
udev->endp_number_in[usb_endp] = endp_number;
|
|
udev->endp_number_out[usb_endp] = endp_number;
|
|
urb->hcpriv = u132;
|
|
endp->queue_size = 1;
|
|
endp->queue_last = 0;
|
|
endp->queue_next = 0;
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
return 0;
|
|
} else { /*(usb_addr > 0) */
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
endp->udev_number = address;
|
|
endp->usb_addr = usb_addr;
|
|
endp->usb_endp = usb_endp;
|
|
endp->input = 1;
|
|
endp->output = 1;
|
|
endp->pipetype = usb_pipetype(urb->pipe);
|
|
u132_udev_get_kref(u132, udev);
|
|
udev->enumeration = 2;
|
|
udev->endp_number_in[usb_endp] = endp_number;
|
|
udev->endp_number_out[usb_endp] = endp_number;
|
|
urb->hcpriv = u132;
|
|
endp->queue_size = 1;
|
|
endp->queue_last = 0;
|
|
endp->queue_next = 0;
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int queue_control_on_old_endpoint(struct u132 *u132,
|
|
struct urb *urb,
|
|
struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
|
|
u8 usb_endp)
|
|
{
|
|
if (usb_addr == 0) {
|
|
if (usb_pipein(urb->pipe)) {
|
|
urb->hcpriv = u132;
|
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
|
|
endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_last++] = urb;
|
|
} else {
|
|
struct u132_urbq *urbq =
|
|
kmalloc(sizeof(struct u132_urbq),
|
|
GFP_ATOMIC);
|
|
if (urbq == NULL) {
|
|
endp->queue_size -= 1;
|
|
return -ENOMEM;
|
|
} else {
|
|
list_add_tail(&urbq->urb_more,
|
|
&endp->urb_more);
|
|
urbq->urb = urb;
|
|
}
|
|
}
|
|
return 0;
|
|
} else { /* usb_pipeout(urb->pipe) */
|
|
struct u132_addr *addr = &u132->addr[usb_dev->devnum];
|
|
int I = MAX_U132_UDEVS;
|
|
int i = 0;
|
|
while (--I > 0) {
|
|
struct u132_udev *udev = &u132->udev[++i];
|
|
if (udev->usb_device) {
|
|
continue;
|
|
} else {
|
|
udev->enumeration = 1;
|
|
u132->addr[0].address = i;
|
|
endp->udev_number = i;
|
|
udev->udev_number = i;
|
|
udev->usb_addr = usb_dev->devnum;
|
|
u132_udev_init_kref(u132, udev);
|
|
udev->endp_number_in[usb_endp] =
|
|
endp->endp_number;
|
|
u132_udev_get_kref(u132, udev);
|
|
udev->endp_number_out[usb_endp] =
|
|
endp->endp_number;
|
|
udev->usb_device = usb_dev;
|
|
((u8 *) (urb->setup_packet))[2] =
|
|
addr->address = i;
|
|
u132_udev_get_kref(u132, udev);
|
|
break;
|
|
}
|
|
}
|
|
if (I == 0) {
|
|
dev_err(&u132->platform_dev->dev, "run out of d"
|
|
"evice space\n");
|
|
return -EINVAL;
|
|
}
|
|
urb->hcpriv = u132;
|
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
|
|
endp->urb_list[ENDP_QUEUE_MASK &
|
|
endp->queue_last++] = urb;
|
|
} else {
|
|
struct u132_urbq *urbq =
|
|
kmalloc(sizeof(struct u132_urbq),
|
|
GFP_ATOMIC);
|
|
if (urbq == NULL) {
|
|
endp->queue_size -= 1;
|
|
return -ENOMEM;
|
|
} else {
|
|
list_add_tail(&urbq->urb_more,
|
|
&endp->urb_more);
|
|
urbq->urb = urb;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
} else { /*(usb_addr > 0) */
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
urb->hcpriv = u132;
|
|
if (udev->enumeration != 2)
|
|
udev->enumeration = 2;
|
|
if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
|
|
endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
|
|
urb;
|
|
} else {
|
|
struct u132_urbq *urbq =
|
|
kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
|
|
if (urbq == NULL) {
|
|
endp->queue_size -= 1;
|
|
return -ENOMEM;
|
|
} else {
|
|
list_add_tail(&urbq->urb_more, &endp->urb_more);
|
|
urbq->urb = urb;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
|
|
gfp_t mem_flags)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (irqs_disabled()) {
|
|
if (__GFP_WAIT & mem_flags) {
|
|
printk(KERN_ERR "invalid context for function that migh"
|
|
"t sleep\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed "
|
|
"urb=%p\n", urb);
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
u8 usb_addr = usb_pipedevice(urb->pipe);
|
|
u8 usb_endp = usb_pipeendpoint(urb->pipe);
|
|
struct usb_device *usb_dev = urb->dev;
|
|
if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
struct u132_endp *endp = urb->ep->hcpriv;
|
|
urb->actual_length = 0;
|
|
if (endp) {
|
|
unsigned long irqs;
|
|
int retval;
|
|
spin_lock_irqsave(&endp->queue_lock.slock,
|
|
irqs);
|
|
retval = usb_hcd_link_urb_to_ep(hcd, urb);
|
|
if (retval == 0) {
|
|
retval = queue_int_on_old_endpoint(
|
|
u132, udev, urb,
|
|
usb_dev, endp,
|
|
usb_addr, usb_endp,
|
|
address);
|
|
if (retval)
|
|
usb_hcd_unlink_urb_from_ep(
|
|
hcd, urb);
|
|
}
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock,
|
|
irqs);
|
|
if (retval) {
|
|
return retval;
|
|
} else {
|
|
u132_endp_queue_work(u132, endp,
|
|
msecs_to_jiffies(urb->interval))
|
|
;
|
|
return 0;
|
|
}
|
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
|
|
return -EINVAL;
|
|
} else { /*(endp == NULL) */
|
|
return create_endpoint_and_queue_int(u132, udev,
|
|
urb, usb_dev, usb_addr,
|
|
usb_endp, address, mem_flags);
|
|
}
|
|
} else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
|
|
dev_err(&u132->platform_dev->dev, "the hardware does no"
|
|
"t support PIPE_ISOCHRONOUS\n");
|
|
return -EINVAL;
|
|
} else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
struct u132_endp *endp = urb->ep->hcpriv;
|
|
urb->actual_length = 0;
|
|
if (endp) {
|
|
unsigned long irqs;
|
|
int retval;
|
|
spin_lock_irqsave(&endp->queue_lock.slock,
|
|
irqs);
|
|
retval = usb_hcd_link_urb_to_ep(hcd, urb);
|
|
if (retval == 0) {
|
|
retval = queue_bulk_on_old_endpoint(
|
|
u132, udev, urb,
|
|
usb_dev, endp,
|
|
usb_addr, usb_endp,
|
|
address);
|
|
if (retval)
|
|
usb_hcd_unlink_urb_from_ep(
|
|
hcd, urb);
|
|
}
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock,
|
|
irqs);
|
|
if (retval) {
|
|
return retval;
|
|
} else {
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
return 0;
|
|
}
|
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
|
|
return -EINVAL;
|
|
} else
|
|
return create_endpoint_and_queue_bulk(u132,
|
|
udev, urb, usb_dev, usb_addr,
|
|
usb_endp, address, mem_flags);
|
|
} else {
|
|
struct u132_endp *endp = urb->ep->hcpriv;
|
|
u16 urb_size = 8;
|
|
u8 *b = urb->setup_packet;
|
|
int i = 0;
|
|
char data[30 * 3 + 4];
|
|
char *d = data;
|
|
int m = (sizeof(data) - 1) / 3;
|
|
int l = 0;
|
|
data[0] = 0;
|
|
while (urb_size-- > 0) {
|
|
if (i > m) {
|
|
} else if (i++ < m) {
|
|
int w = sprintf(d, " %02X", *b++);
|
|
d += w;
|
|
l += w;
|
|
} else
|
|
d += sprintf(d, " ..");
|
|
}
|
|
if (endp) {
|
|
unsigned long irqs;
|
|
int retval;
|
|
spin_lock_irqsave(&endp->queue_lock.slock,
|
|
irqs);
|
|
retval = usb_hcd_link_urb_to_ep(hcd, urb);
|
|
if (retval == 0) {
|
|
retval = queue_control_on_old_endpoint(
|
|
u132, urb, usb_dev,
|
|
endp, usb_addr,
|
|
usb_endp);
|
|
if (retval)
|
|
usb_hcd_unlink_urb_from_ep(
|
|
hcd, urb);
|
|
}
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock,
|
|
irqs);
|
|
if (retval) {
|
|
return retval;
|
|
} else {
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
return 0;
|
|
}
|
|
} else if (u132->num_endpoints == MAX_U132_ENDPS) {
|
|
return -EINVAL;
|
|
} else
|
|
return create_endpoint_and_queue_control(u132,
|
|
urb, usb_dev, usb_addr, usb_endp,
|
|
mem_flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int dequeue_from_overflow_chain(struct u132 *u132,
|
|
struct u132_endp *endp, struct urb *urb)
|
|
{
|
|
struct list_head *scan;
|
|
struct list_head *head = &endp->urb_more;
|
|
list_for_each(scan, head) {
|
|
struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
|
|
urb_more);
|
|
if (urbq->urb == urb) {
|
|
struct usb_hcd *hcd = u132_to_hcd(u132);
|
|
list_del(scan);
|
|
endp->queue_size -= 1;
|
|
urb->error_count = 0;
|
|
usb_hcd_giveback_urb(hcd, urb, 0);
|
|
return 0;
|
|
} else
|
|
continue;
|
|
}
|
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
|
|
"[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
|
|
"\n", urb, endp->endp_number, endp, endp->ring->number,
|
|
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
|
|
endp->usb_endp, endp->usb_addr, endp->queue_size,
|
|
endp->queue_next, endp->queue_last);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
|
|
struct urb *urb, int status)
|
|
{
|
|
unsigned long irqs;
|
|
int rc;
|
|
|
|
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
|
|
rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status);
|
|
if (rc) {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
return rc;
|
|
}
|
|
if (endp->queue_size == 0) {
|
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
|
|
"=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
|
|
endp->endp_number, endp, endp->ring->number,
|
|
endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
|
|
endp->usb_endp, endp->usb_addr);
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
return -EINVAL;
|
|
}
|
|
if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
|
|
if (endp->active) {
|
|
endp->dequeueing = 1;
|
|
endp->edset_flush = 1;
|
|
u132_endp_queue_work(u132, endp, 0);
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
return 0;
|
|
} else {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
u132_hcd_abandon_urb(u132, endp, urb, status);
|
|
return 0;
|
|
}
|
|
} else {
|
|
u16 queue_list = 0;
|
|
u16 queue_size = endp->queue_size;
|
|
u16 queue_scan = endp->queue_next;
|
|
struct urb **urb_slot = NULL;
|
|
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
|
|
if (urb == endp->urb_list[ENDP_QUEUE_MASK &
|
|
++queue_scan]) {
|
|
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
|
|
queue_scan];
|
|
break;
|
|
} else
|
|
continue;
|
|
}
|
|
while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
|
|
*urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
|
|
++queue_scan];
|
|
urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
|
|
queue_scan];
|
|
}
|
|
if (urb_slot) {
|
|
struct usb_hcd *hcd = u132_to_hcd(u132);
|
|
|
|
usb_hcd_unlink_urb_from_ep(hcd, urb);
|
|
endp->queue_size -= 1;
|
|
if (list_empty(&endp->urb_more)) {
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock,
|
|
irqs);
|
|
} else {
|
|
struct list_head *next = endp->urb_more.next;
|
|
struct u132_urbq *urbq = list_entry(next,
|
|
struct u132_urbq, urb_more);
|
|
list_del(next);
|
|
*urb_slot = urbq->urb;
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock,
|
|
irqs);
|
|
kfree(urbq);
|
|
} urb->error_count = 0;
|
|
usb_hcd_giveback_urb(hcd, urb, status);
|
|
return 0;
|
|
} else if (list_empty(&endp->urb_more)) {
|
|
dev_err(&u132->platform_dev->dev, "urb=%p not found in "
|
|
"endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
|
|
"=%d size=%d next=%04X last=%04X\n", urb,
|
|
endp->endp_number, endp, endp->ring->number,
|
|
endp->input ? 'I' : ' ',
|
|
endp->output ? 'O' : ' ', endp->usb_endp,
|
|
endp->usb_addr, endp->queue_size,
|
|
endp->queue_next, endp->queue_last);
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
return -EINVAL;
|
|
} else {
|
|
int retval;
|
|
|
|
usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb);
|
|
retval = dequeue_from_overflow_chain(u132, endp,
|
|
urb);
|
|
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
|
|
return retval;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 2) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else {
|
|
u8 usb_addr = usb_pipedevice(urb->pipe);
|
|
u8 usb_endp = usb_pipeendpoint(urb->pipe);
|
|
u8 address = u132->addr[usb_addr].address;
|
|
struct u132_udev *udev = &u132->udev[address];
|
|
if (usb_pipein(urb->pipe)) {
|
|
u8 endp_number = udev->endp_number_in[usb_endp];
|
|
struct u132_endp *endp = u132->endp[endp_number - 1];
|
|
return u132_endp_urb_dequeue(u132, endp, urb, status);
|
|
} else {
|
|
u8 endp_number = udev->endp_number_out[usb_endp];
|
|
struct u132_endp *endp = u132->endp[endp_number - 1];
|
|
return u132_endp_urb_dequeue(u132, endp, urb, status);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void u132_endpoint_disable(struct usb_hcd *hcd,
|
|
struct usb_host_endpoint *hep)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 2) {
|
|
dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
|
|
") has been removed %d\n", u132, hcd, hep,
|
|
u132->going);
|
|
} else {
|
|
struct u132_endp *endp = hep->hcpriv;
|
|
if (endp)
|
|
u132_endp_put_kref(u132, endp);
|
|
}
|
|
}
|
|
|
|
static int u132_get_frame(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int frame = 0;
|
|
dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
|
|
msleep(100);
|
|
return frame;
|
|
}
|
|
}
|
|
|
|
static int u132_roothub_descriptor(struct u132 *u132,
|
|
struct usb_hub_descriptor *desc)
|
|
{
|
|
int retval;
|
|
u16 temp;
|
|
u32 rh_a = -1;
|
|
u32 rh_b = -1;
|
|
retval = u132_read_pcimem(u132, roothub.a, &rh_a);
|
|
if (retval)
|
|
return retval;
|
|
desc->bDescriptorType = 0x29;
|
|
desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
|
|
desc->bHubContrCurrent = 0;
|
|
desc->bNbrPorts = u132->num_ports;
|
|
temp = 1 + (u132->num_ports / 8);
|
|
desc->bDescLength = 7 + 2 * temp;
|
|
temp = 0;
|
|
if (rh_a & RH_A_NPS)
|
|
temp |= 0x0002;
|
|
if (rh_a & RH_A_PSM)
|
|
temp |= 0x0001;
|
|
if (rh_a & RH_A_NOCP)
|
|
temp |= 0x0010;
|
|
else if (rh_a & RH_A_OCPM)
|
|
temp |= 0x0008;
|
|
desc->wHubCharacteristics = cpu_to_le16(temp);
|
|
retval = u132_read_pcimem(u132, roothub.b, &rh_b);
|
|
if (retval)
|
|
return retval;
|
|
memset(desc->u.hs.DeviceRemovable, 0xff,
|
|
sizeof(desc->u.hs.DeviceRemovable));
|
|
desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR;
|
|
if (u132->num_ports > 7) {
|
|
desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8;
|
|
desc->u.hs.DeviceRemovable[2] = 0xff;
|
|
} else
|
|
desc->u.hs.DeviceRemovable[1] = 0xff;
|
|
return 0;
|
|
}
|
|
|
|
static int u132_roothub_status(struct u132 *u132, __le32 *desc)
|
|
{
|
|
u32 rh_status = -1;
|
|
int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
|
|
*desc = cpu_to_le32(rh_status);
|
|
return ret_status;
|
|
}
|
|
|
|
static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
|
|
{
|
|
if (wIndex == 0 || wIndex > u132->num_ports) {
|
|
return -EINVAL;
|
|
} else {
|
|
int port = wIndex - 1;
|
|
u32 rh_portstatus = -1;
|
|
int ret_portstatus = u132_read_pcimem(u132,
|
|
roothub.portstatus[port], &rh_portstatus);
|
|
*desc = cpu_to_le32(rh_portstatus);
|
|
if (*(u16 *) (desc + 2)) {
|
|
dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
|
|
"ge = %08X\n", port, *desc);
|
|
}
|
|
return ret_portstatus;
|
|
}
|
|
}
|
|
|
|
|
|
/* this timer value might be vendor-specific ... */
|
|
#define PORT_RESET_HW_MSEC 10
|
|
#define PORT_RESET_MSEC 10
|
|
/* wrap-aware logic morphed from <linux/jiffies.h> */
|
|
#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
|
|
static int u132_roothub_portreset(struct u132 *u132, int port_index)
|
|
{
|
|
int retval;
|
|
u32 fmnumber;
|
|
u16 now;
|
|
u16 reset_done;
|
|
retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
|
|
if (retval)
|
|
return retval;
|
|
now = fmnumber;
|
|
reset_done = now + PORT_RESET_MSEC;
|
|
do {
|
|
u32 portstat;
|
|
do {
|
|
retval = u132_read_pcimem(u132,
|
|
roothub.portstatus[port_index], &portstat);
|
|
if (retval)
|
|
return retval;
|
|
if (RH_PS_PRS & portstat)
|
|
continue;
|
|
else
|
|
break;
|
|
} while (tick_before(now, reset_done));
|
|
if (RH_PS_PRS & portstat)
|
|
return -ENODEV;
|
|
if (RH_PS_CCS & portstat) {
|
|
if (RH_PS_PRSC & portstat) {
|
|
retval = u132_write_pcimem(u132,
|
|
roothub.portstatus[port_index],
|
|
RH_PS_PRSC);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
} else
|
|
break; /* start the next reset,
|
|
sleep till it's probably done */
|
|
retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
|
|
RH_PS_PRS);
|
|
if (retval)
|
|
return retval;
|
|
msleep(PORT_RESET_HW_MSEC);
|
|
retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
|
|
if (retval)
|
|
return retval;
|
|
now = fmnumber;
|
|
} while (tick_before(now, reset_done));
|
|
return 0;
|
|
}
|
|
|
|
static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
|
|
u16 wIndex)
|
|
{
|
|
if (wIndex == 0 || wIndex > u132->num_ports) {
|
|
return -EINVAL;
|
|
} else {
|
|
int retval;
|
|
int port_index = wIndex - 1;
|
|
struct u132_port *port = &u132->port[port_index];
|
|
port->Status &= ~(1 << wValue);
|
|
switch (wValue) {
|
|
case USB_PORT_FEAT_SUSPEND:
|
|
retval = u132_write_pcimem(u132,
|
|
roothub.portstatus[port_index], RH_PS_PSS);
|
|
if (retval)
|
|
return retval;
|
|
return 0;
|
|
case USB_PORT_FEAT_POWER:
|
|
retval = u132_write_pcimem(u132,
|
|
roothub.portstatus[port_index], RH_PS_PPS);
|
|
if (retval)
|
|
return retval;
|
|
return 0;
|
|
case USB_PORT_FEAT_RESET:
|
|
retval = u132_roothub_portreset(u132, port_index);
|
|
if (retval)
|
|
return retval;
|
|
return 0;
|
|
default:
|
|
return -EPIPE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
|
|
u16 wIndex)
|
|
{
|
|
if (wIndex == 0 || wIndex > u132->num_ports) {
|
|
return -EINVAL;
|
|
} else {
|
|
int port_index = wIndex - 1;
|
|
u32 temp;
|
|
int retval;
|
|
struct u132_port *port = &u132->port[port_index];
|
|
port->Status &= ~(1 << wValue);
|
|
switch (wValue) {
|
|
case USB_PORT_FEAT_ENABLE:
|
|
temp = RH_PS_CCS;
|
|
break;
|
|
case USB_PORT_FEAT_C_ENABLE:
|
|
temp = RH_PS_PESC;
|
|
break;
|
|
case USB_PORT_FEAT_SUSPEND:
|
|
temp = RH_PS_POCI;
|
|
if ((u132->hc_control & OHCI_CTRL_HCFS)
|
|
!= OHCI_USB_OPER) {
|
|
dev_err(&u132->platform_dev->dev, "TODO resume_"
|
|
"root_hub\n");
|
|
}
|
|
break;
|
|
case USB_PORT_FEAT_C_SUSPEND:
|
|
temp = RH_PS_PSSC;
|
|
break;
|
|
case USB_PORT_FEAT_POWER:
|
|
temp = RH_PS_LSDA;
|
|
break;
|
|
case USB_PORT_FEAT_C_CONNECTION:
|
|
temp = RH_PS_CSC;
|
|
break;
|
|
case USB_PORT_FEAT_C_OVER_CURRENT:
|
|
temp = RH_PS_OCIC;
|
|
break;
|
|
case USB_PORT_FEAT_C_RESET:
|
|
temp = RH_PS_PRSC;
|
|
break;
|
|
default:
|
|
return -EPIPE;
|
|
}
|
|
retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
|
|
temp);
|
|
if (retval)
|
|
return retval;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
/* the virtual root hub timer IRQ checks for hub status*/
|
|
static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
|
|
"ed %d\n", hcd, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
|
|
"ed\n", hcd);
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int i, changed = 0, length = 1;
|
|
if (u132->flags & OHCI_QUIRK_AMD756) {
|
|
if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
|
|
dev_err(&u132->platform_dev->dev, "bogus NDP, r"
|
|
"ereads as NDP=%d\n",
|
|
u132->hc_roothub_a & RH_A_NDP);
|
|
goto done;
|
|
}
|
|
}
|
|
if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC))
|
|
buf[0] = changed = 1;
|
|
else
|
|
buf[0] = 0;
|
|
if (u132->num_ports > 7) {
|
|
buf[1] = 0;
|
|
length++;
|
|
}
|
|
for (i = 0; i < u132->num_ports; i++) {
|
|
if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
|
|
RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
|
|
RH_PS_PRSC)) {
|
|
changed = 1;
|
|
if (i < 7)
|
|
buf[0] |= 1 << (i + 1);
|
|
else
|
|
buf[1] |= 1 << (i - 7);
|
|
continue;
|
|
}
|
|
if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS))
|
|
continue;
|
|
|
|
if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS))
|
|
continue;
|
|
}
|
|
done:
|
|
return changed ? length : 0;
|
|
}
|
|
}
|
|
|
|
static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
|
|
u16 wIndex, char *buf, u16 wLength)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int retval = 0;
|
|
mutex_lock(&u132->sw_lock);
|
|
switch (typeReq) {
|
|
case ClearHubFeature:
|
|
switch (wValue) {
|
|
case C_HUB_OVER_CURRENT:
|
|
case C_HUB_LOCAL_POWER:
|
|
break;
|
|
default:
|
|
goto stall;
|
|
}
|
|
break;
|
|
case SetHubFeature:
|
|
switch (wValue) {
|
|
case C_HUB_OVER_CURRENT:
|
|
case C_HUB_LOCAL_POWER:
|
|
break;
|
|
default:
|
|
goto stall;
|
|
}
|
|
break;
|
|
case ClearPortFeature:{
|
|
retval = u132_roothub_clearportfeature(u132,
|
|
wValue, wIndex);
|
|
if (retval)
|
|
goto error;
|
|
break;
|
|
}
|
|
case GetHubDescriptor:{
|
|
retval = u132_roothub_descriptor(u132,
|
|
(struct usb_hub_descriptor *)buf);
|
|
if (retval)
|
|
goto error;
|
|
break;
|
|
}
|
|
case GetHubStatus:{
|
|
retval = u132_roothub_status(u132,
|
|
(__le32 *) buf);
|
|
if (retval)
|
|
goto error;
|
|
break;
|
|
}
|
|
case GetPortStatus:{
|
|
retval = u132_roothub_portstatus(u132,
|
|
(__le32 *) buf, wIndex);
|
|
if (retval)
|
|
goto error;
|
|
break;
|
|
}
|
|
case SetPortFeature:{
|
|
retval = u132_roothub_setportfeature(u132,
|
|
wValue, wIndex);
|
|
if (retval)
|
|
goto error;
|
|
break;
|
|
}
|
|
default:
|
|
goto stall;
|
|
error:
|
|
u132_disable(u132);
|
|
u132->going = 1;
|
|
break;
|
|
stall:
|
|
retval = -EPIPE;
|
|
break;
|
|
}
|
|
mutex_unlock(&u132->sw_lock);
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_PM
|
|
static int u132_bus_suspend(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
static int u132_bus_resume(struct usb_hcd *hcd)
|
|
{
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
#define u132_bus_suspend NULL
|
|
#define u132_bus_resume NULL
|
|
#endif
|
|
static struct hc_driver u132_hc_driver = {
|
|
.description = hcd_name,
|
|
.hcd_priv_size = sizeof(struct u132),
|
|
.irq = NULL,
|
|
.flags = HCD_USB11 | HCD_MEMORY,
|
|
.reset = u132_hcd_reset,
|
|
.start = u132_hcd_start,
|
|
.stop = u132_hcd_stop,
|
|
.urb_enqueue = u132_urb_enqueue,
|
|
.urb_dequeue = u132_urb_dequeue,
|
|
.endpoint_disable = u132_endpoint_disable,
|
|
.get_frame_number = u132_get_frame,
|
|
.hub_status_data = u132_hub_status_data,
|
|
.hub_control = u132_hub_control,
|
|
.bus_suspend = u132_bus_suspend,
|
|
.bus_resume = u132_bus_resume,
|
|
.start_port_reset = u132_start_port_reset,
|
|
};
|
|
|
|
/*
|
|
* This function may be called by the USB core whilst the "usb_all_devices_rwsem"
|
|
* is held for writing, thus this module must not call usb_remove_hcd()
|
|
* synchronously - but instead should immediately stop activity to the
|
|
* device and asynchronously call usb_remove_hcd()
|
|
*/
|
|
static int u132_remove(struct platform_device *pdev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
if (hcd) {
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going++ > 1) {
|
|
dev_err(&u132->platform_dev->dev, "already being remove"
|
|
"d\n");
|
|
return -ENODEV;
|
|
} else {
|
|
int rings = MAX_U132_RINGS;
|
|
int endps = MAX_U132_ENDPS;
|
|
dev_err(&u132->platform_dev->dev, "removing device u132"
|
|
".%d\n", u132->sequence_num);
|
|
msleep(100);
|
|
mutex_lock(&u132->sw_lock);
|
|
u132_monitor_cancel_work(u132);
|
|
while (rings-- > 0) {
|
|
struct u132_ring *ring = &u132->ring[rings];
|
|
u132_ring_cancel_work(u132, ring);
|
|
} while (endps-- > 0) {
|
|
struct u132_endp *endp = u132->endp[endps];
|
|
if (endp)
|
|
u132_endp_cancel_work(u132, endp);
|
|
}
|
|
u132->going += 1;
|
|
printk(KERN_INFO "removing device u132.%d\n",
|
|
u132->sequence_num);
|
|
mutex_unlock(&u132->sw_lock);
|
|
usb_remove_hcd(hcd);
|
|
u132_u132_put_kref(u132);
|
|
return 0;
|
|
}
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
|
|
{
|
|
int rings = MAX_U132_RINGS;
|
|
int ports = MAX_U132_PORTS;
|
|
int addrs = MAX_U132_ADDRS;
|
|
int udevs = MAX_U132_UDEVS;
|
|
int endps = MAX_U132_ENDPS;
|
|
u132->board = pdev->dev.platform_data;
|
|
u132->platform_dev = pdev;
|
|
u132->power = 0;
|
|
u132->reset = 0;
|
|
mutex_init(&u132->sw_lock);
|
|
mutex_init(&u132->scheduler_lock);
|
|
while (rings-- > 0) {
|
|
struct u132_ring *ring = &u132->ring[rings];
|
|
ring->u132 = u132;
|
|
ring->number = rings + 1;
|
|
ring->length = 0;
|
|
ring->curr_endp = NULL;
|
|
INIT_DELAYED_WORK(&ring->scheduler,
|
|
u132_hcd_ring_work_scheduler);
|
|
}
|
|
mutex_lock(&u132->sw_lock);
|
|
INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
|
|
while (ports-- > 0) {
|
|
struct u132_port *port = &u132->port[ports];
|
|
port->u132 = u132;
|
|
port->reset = 0;
|
|
port->enable = 0;
|
|
port->power = 0;
|
|
port->Status = 0;
|
|
}
|
|
while (addrs-- > 0) {
|
|
struct u132_addr *addr = &u132->addr[addrs];
|
|
addr->address = 0;
|
|
}
|
|
while (udevs-- > 0) {
|
|
struct u132_udev *udev = &u132->udev[udevs];
|
|
int i = ARRAY_SIZE(udev->endp_number_in);
|
|
int o = ARRAY_SIZE(udev->endp_number_out);
|
|
udev->usb_device = NULL;
|
|
udev->udev_number = 0;
|
|
udev->usb_addr = 0;
|
|
udev->portnumber = 0;
|
|
while (i-- > 0)
|
|
udev->endp_number_in[i] = 0;
|
|
|
|
while (o-- > 0)
|
|
udev->endp_number_out[o] = 0;
|
|
|
|
}
|
|
while (endps-- > 0)
|
|
u132->endp[endps] = NULL;
|
|
|
|
mutex_unlock(&u132->sw_lock);
|
|
}
|
|
|
|
static int u132_probe(struct platform_device *pdev)
|
|
{
|
|
struct usb_hcd *hcd;
|
|
int retval;
|
|
u32 control;
|
|
u32 rh_a = -1;
|
|
u32 num_ports;
|
|
|
|
msleep(100);
|
|
if (u132_exiting > 0)
|
|
return -ENODEV;
|
|
|
|
retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
|
|
if (retval)
|
|
return retval;
|
|
retval = ftdi_read_pcimem(pdev, control, &control);
|
|
if (retval)
|
|
return retval;
|
|
retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
|
|
if (retval)
|
|
return retval;
|
|
num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */
|
|
if (pdev->dev.dma_mask)
|
|
return -EINVAL;
|
|
|
|
hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev));
|
|
if (!hcd) {
|
|
printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
|
|
);
|
|
ftdi_elan_gone_away(pdev);
|
|
return -ENOMEM;
|
|
} else {
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
retval = 0;
|
|
hcd->rsrc_start = 0;
|
|
mutex_lock(&u132_module_lock);
|
|
list_add_tail(&u132->u132_list, &u132_static_list);
|
|
u132->sequence_num = ++u132_instances;
|
|
mutex_unlock(&u132_module_lock);
|
|
u132_u132_init_kref(u132);
|
|
u132_initialise(u132, pdev);
|
|
hcd->product_desc = "ELAN U132 Host Controller";
|
|
retval = usb_add_hcd(hcd, 0, 0);
|
|
if (retval != 0) {
|
|
dev_err(&u132->platform_dev->dev, "init error %d\n",
|
|
retval);
|
|
u132_u132_put_kref(u132);
|
|
return retval;
|
|
} else {
|
|
u132_monitor_queue_work(u132, 100);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_PM
|
|
/* for this device there's no useful distinction between the controller
|
|
* and its root hub, except that the root hub only gets direct PM calls
|
|
* when CONFIG_USB_SUSPEND is enabled.
|
|
*/
|
|
static int u132_suspend(struct platform_device *pdev, pm_message_t state)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int retval = 0, ports;
|
|
|
|
switch (state.event) {
|
|
case PM_EVENT_FREEZE:
|
|
retval = u132_bus_suspend(hcd);
|
|
break;
|
|
case PM_EVENT_SUSPEND:
|
|
case PM_EVENT_HIBERNATE:
|
|
ports = MAX_U132_PORTS;
|
|
while (ports-- > 0) {
|
|
port_power(u132, ports, 0);
|
|
}
|
|
break;
|
|
}
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
static int u132_resume(struct platform_device *pdev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
struct u132 *u132 = hcd_to_u132(hcd);
|
|
if (u132->going > 1) {
|
|
dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
|
|
, u132->going);
|
|
return -ENODEV;
|
|
} else if (u132->going > 0) {
|
|
dev_err(&u132->platform_dev->dev, "device is being removed\n");
|
|
return -ESHUTDOWN;
|
|
} else {
|
|
int retval = 0;
|
|
if (!u132->port[0].power) {
|
|
int ports = MAX_U132_PORTS;
|
|
while (ports-- > 0) {
|
|
port_power(u132, ports, 1);
|
|
}
|
|
retval = 0;
|
|
} else {
|
|
retval = u132_bus_resume(hcd);
|
|
}
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
#else
|
|
#define u132_suspend NULL
|
|
#define u132_resume NULL
|
|
#endif
|
|
/*
|
|
* this driver is loaded explicitly by ftdi_u132
|
|
*
|
|
* the platform_driver struct is static because it is per type of module
|
|
*/
|
|
static struct platform_driver u132_platform_driver = {
|
|
.probe = u132_probe,
|
|
.remove = u132_remove,
|
|
.suspend = u132_suspend,
|
|
.resume = u132_resume,
|
|
.driver = {
|
|
.name = (char *)hcd_name,
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
static int __init u132_hcd_init(void)
|
|
{
|
|
int retval;
|
|
INIT_LIST_HEAD(&u132_static_list);
|
|
u132_instances = 0;
|
|
u132_exiting = 0;
|
|
mutex_init(&u132_module_lock);
|
|
if (usb_disabled())
|
|
return -ENODEV;
|
|
printk(KERN_INFO "driver %s\n", hcd_name);
|
|
workqueue = create_singlethread_workqueue("u132");
|
|
retval = platform_driver_register(&u132_platform_driver);
|
|
return retval;
|
|
}
|
|
|
|
|
|
module_init(u132_hcd_init);
|
|
static void __exit u132_hcd_exit(void)
|
|
{
|
|
struct u132 *u132;
|
|
struct u132 *temp;
|
|
mutex_lock(&u132_module_lock);
|
|
u132_exiting += 1;
|
|
mutex_unlock(&u132_module_lock);
|
|
list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
|
|
platform_device_unregister(u132->platform_dev);
|
|
}
|
|
platform_driver_unregister(&u132_platform_driver);
|
|
printk(KERN_INFO "u132-hcd driver deregistered\n");
|
|
wait_event(u132_hcd_wait, u132_instances == 0);
|
|
flush_workqueue(workqueue);
|
|
destroy_workqueue(workqueue);
|
|
}
|
|
|
|
|
|
module_exit(u132_hcd_exit);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:u132_hcd");
|