diff options
Diffstat (limited to 'drivers/usb')
69 files changed, 16607 insertions, 2504 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 755823cdf62..bcefbddeba5 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -95,16 +95,18 @@ config USB source "drivers/usb/core/Kconfig" +source "drivers/usb/mon/Kconfig" + source "drivers/usb/host/Kconfig" +source "drivers/usb/musb/Kconfig" + source "drivers/usb/class/Kconfig" source "drivers/usb/storage/Kconfig" source "drivers/usb/image/Kconfig" -source "drivers/usb/mon/Kconfig" - comment "USB port drivers" depends on USB diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 507a9bd0d77..9aea43a8c4a 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -602,7 +602,7 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ offd = le32_to_cpu(buf[offb++]); if (offd >= size) { if (printk_ratelimit()) - usb_err(instance->usbatm, "wrong index #%x in response to cm #%x\n", + usb_err(instance->usbatm, "wrong index %#x in response to cm %#x\n", offd, cm); ret = -EIO; goto cleanup; diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 0725b1871f2..efc4373eded 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -51,6 +51,7 @@ */ #undef DEBUG +#undef VERBOSE_DEBUG #include <linux/kernel.h> #include <linux/errno.h> @@ -70,6 +71,9 @@ #include "cdc-acm.h" + +#define ACM_CLOSE_TIMEOUT 15 /* seconds to let writes drain */ + /* * Version Information */ @@ -85,6 +89,12 @@ static DEFINE_MUTEX(open_mutex); #define ACM_READY(acm) (acm && acm->dev && acm->used) +#ifdef VERBOSE_DEBUG +#define verbose 1 +#else +#define verbose 0 +#endif + /* * Functions for ACM control messages. */ @@ -136,19 +146,17 @@ static int acm_wb_alloc(struct acm *acm) static int acm_wb_is_avail(struct acm *acm) { int i, n; + unsigned long flags; n = ACM_NW; + spin_lock_irqsave(&acm->write_lock, flags); for (i = 0; i < ACM_NW; i++) { n -= acm->wb[i].use; } + spin_unlock_irqrestore(&acm->write_lock, flags); return n; } -static inline int acm_wb_is_used(struct acm *acm, int wbn) -{ - return acm->wb[wbn].use; -} - /* * Finish write. */ @@ -157,7 +165,6 @@ static void acm_write_done(struct acm *acm, struct acm_wb *wb) unsigned long flags; spin_lock_irqsave(&acm->write_lock, flags); - acm->write_ready = 1; wb->use = 0; acm->transmitting--; spin_unlock_irqrestore(&acm->write_lock, flags); @@ -190,40 +197,25 @@ static int acm_start_wb(struct acm *acm, struct acm_wb *wb) static int acm_write_start(struct acm *acm, int wbn) { unsigned long flags; - struct acm_wb *wb; + struct acm_wb *wb = &acm->wb[wbn]; int rc; spin_lock_irqsave(&acm->write_lock, flags); if (!acm->dev) { + wb->use = 0; spin_unlock_irqrestore(&acm->write_lock, flags); return -ENODEV; } - if (!acm->write_ready) { - spin_unlock_irqrestore(&acm->write_lock, flags); - return 0; /* A white lie */ - } - - wb = &acm->wb[wbn]; - if(acm_wb_is_avail(acm) <= 1) - acm->write_ready = 0; - dbg("%s susp_count: %d", __func__, acm->susp_count); if (acm->susp_count) { - acm->old_ready = acm->write_ready; acm->delayed_wb = wb; - acm->write_ready = 0; schedule_work(&acm->waker); spin_unlock_irqrestore(&acm->write_lock, flags); return 0; /* A white lie */ } usb_mark_last_busy(acm->dev); - if (!acm_wb_is_used(acm, wbn)) { - spin_unlock_irqrestore(&acm->write_lock, flags); - return 0; - } - rc = acm_start_wb(acm, wb); spin_unlock_irqrestore(&acm->write_lock, flags); @@ -488,22 +480,28 @@ urbs: /* data interface wrote those outgoing bytes */ static void acm_write_bulk(struct urb *urb) { - struct acm *acm; struct acm_wb *wb = urb->context; + struct acm *acm = wb->instance; - dbg("Entering acm_write_bulk with status %d", urb->status); + if (verbose || urb->status + || (urb->actual_length != urb->transfer_buffer_length)) + dev_dbg(&acm->data->dev, "tx %d/%d bytes -- > %d\n", + urb->actual_length, + urb->transfer_buffer_length, + urb->status); - acm = wb->instance; acm_write_done(acm, wb); if (ACM_READY(acm)) schedule_work(&acm->work); + else + wake_up_interruptible(&acm->drain_wait); } static void acm_softint(struct work_struct *work) { struct acm *acm = container_of(work, struct acm, work); - dbg("Entering acm_softint."); - + + dev_vdbg(&acm->data->dev, "tx work\n"); if (!ACM_READY(acm)) return; tty_wakeup(acm->tty); @@ -512,7 +510,6 @@ static void acm_softint(struct work_struct *work) static void acm_waker(struct work_struct *waker) { struct acm *acm = container_of(waker, struct acm, waker); - long flags; int rv; rv = usb_autopm_get_interface(acm->control); @@ -524,9 +521,6 @@ static void acm_waker(struct work_struct *waker) acm_start_wb(acm, acm->delayed_wb); acm->delayed_wb = NULL; } - spin_lock_irqsave(&acm->write_lock, flags); - acm->write_ready = acm->old_ready; - spin_unlock_irqrestore(&acm->write_lock, flags); usb_autopm_put_interface(acm->control); } @@ -628,6 +622,8 @@ static void acm_tty_unregister(struct acm *acm) kfree(acm); } +static int acm_tty_chars_in_buffer(struct tty_struct *tty); + static void acm_tty_close(struct tty_struct *tty, struct file *filp) { struct acm *acm = tty->driver_data; @@ -642,6 +638,13 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp) if (acm->dev) { usb_autopm_get_interface(acm->control); acm_set_control(acm, acm->ctrlout = 0); + + /* try letting the last writes drain naturally */ + wait_event_interruptible_timeout(acm->drain_wait, + (ACM_NW == acm_wb_is_avail(acm)) + || !acm->dev, + ACM_CLOSE_TIMEOUT * HZ); + usb_kill_urb(acm->ctrlurb); for (i = 0; i < ACM_NW; i++) usb_kill_urb(acm->wb[i].urb); @@ -697,7 +700,7 @@ static int acm_tty_write_room(struct tty_struct *tty) * Do not let the line discipline to know that we have a reserve, * or it might get too enthusiastic. */ - return (acm->write_ready && acm_wb_is_avail(acm)) ? acm->writesize : 0; + return acm_wb_is_avail(acm) ? acm->writesize : 0; } static int acm_tty_chars_in_buffer(struct tty_struct *tty) @@ -1072,11 +1075,11 @@ skip_normal_probe: acm->urb_task.data = (unsigned long) acm; INIT_WORK(&acm->work, acm_softint); INIT_WORK(&acm->waker, acm_waker); + init_waitqueue_head(&acm->drain_wait); spin_lock_init(&acm->throttle_lock); spin_lock_init(&acm->write_lock); spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); - acm->write_ready = 1; acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); @@ -1108,9 +1111,11 @@ skip_normal_probe: rcv->instance = acm; } for (i = 0; i < num_rx_buf; i++) { - struct acm_rb *buf = &(acm->rb[i]); + struct acm_rb *rb = &(acm->rb[i]); - if (!(buf->base = usb_buffer_alloc(acm->dev, readsize, GFP_KERNEL, &buf->dma))) { + rb->base = usb_buffer_alloc(acm->dev, readsize, + GFP_KERNEL, &rb->dma); + if (!rb->base) { dev_dbg(&intf->dev, "out of memory (read bufs usb_buffer_alloc)\n"); goto alloc_fail7; } @@ -1172,6 +1177,7 @@ skip_countries: acm_set_line(acm, &acm->line); usb_driver_claim_interface(&acm_driver, data_interface, acm); + usb_set_intfdata(data_interface, acm); usb_get_intf(control_interface); tty_register_device(acm_tty_driver, minor, &control_interface->dev); @@ -1221,11 +1227,11 @@ static void acm_disconnect(struct usb_interface *intf) struct acm *acm = usb_get_intfdata(intf); struct usb_device *usb_dev = interface_to_usbdev(intf); - mutex_lock(&open_mutex); - if (!acm || !acm->dev) { - mutex_unlock(&open_mutex); + /* sibling interface is already cleaning up */ + if (!acm) return; - } + + mutex_lock(&open_mutex); if (acm->country_codes){ device_remove_file(&acm->control->dev, &dev_attr_wCountryCodes); diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 85c3aaaab7c..1f95e7aa1b6 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -106,8 +106,6 @@ struct acm { struct list_head spare_read_bufs; struct list_head filled_read_bufs; int write_used; /* number of non-empty write buffers */ - int write_ready; /* write urb is not running */ - int old_ready; int processing; int transmitting; spinlock_t write_lock; @@ -115,6 +113,7 @@ struct acm { struct usb_cdc_line_coding line; /* bits, stop, parity */ struct work_struct work; /* work queue entry for line discipline waking up */ struct work_struct waker; + wait_queue_head_t drain_wait; /* close processing */ struct tasklet_struct urb_task; /* rx processing */ spinlock_t throttle_lock; /* synchronize throtteling and read callback */ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index ddb54e14a5c..2be37fe466f 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -774,7 +774,6 @@ void usb_deregister(struct usb_driver *driver) } EXPORT_SYMBOL_GPL(usb_deregister); - /* Forced unbinding of a USB interface driver, either because * it doesn't support pre_reset/post_reset/reset_resume or * because it doesn't support suspend/resume. @@ -821,6 +820,8 @@ void usb_rebind_intf(struct usb_interface *intf) dev_warn(&intf->dev, "rebind failed: %d\n", rc); } +#ifdef CONFIG_PM + #define DO_UNBIND 0 #define DO_REBIND 1 @@ -872,8 +873,6 @@ static void do_unbind_rebind(struct usb_device *udev, int action) } } -#ifdef CONFIG_PM - /* Caller has locked udev's pm_mutex */ static int usb_suspend_device(struct usb_device *udev, pm_message_t msg) { diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 586d6f1376c..286b4431a09 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1091,8 +1091,8 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) continue; dev_dbg(&dev->dev, "unregistering interface %s\n", dev_name(&interface->dev)); - device_del(&interface->dev); usb_remove_sysfs_intf_files(interface); + device_del(&interface->dev); } /* Now that the interfaces are unbound, nobody should diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index c6a8c6b1116..acc95b2ac6f 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -284,6 +284,16 @@ config USB_LH7A40X default USB_GADGET select USB_GADGET_SELECTED +# built in ../musb along with host support +config USB_GADGET_MUSB_HDRC + boolean "Inventra HDRC USB Peripheral (TI, ...)" + depends on USB_MUSB_HDRC && (USB_MUSB_PERIPHERAL || USB_MUSB_OTG) + select USB_GADGET_DUALSPEED + select USB_GADGET_SELECTED + help + This OTG-capable silicon IP is used in dual designs including + the TI DaVinci, OMAP 243x, OMAP 343x, and TUSB 6010. + config USB_GADGET_OMAP boolean "OMAP USB Device Controller" depends on ARCH_OMAP diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 21d1406af9e..7600a0c7875 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -542,13 +542,14 @@ dummy_queue (struct usb_ep *_ep, struct usb_request *_req, req->req.context = dum; req->req.complete = fifo_complete; + list_add_tail(&req->queue, &ep->queue); spin_unlock (&dum->lock); _req->actual = _req->length; _req->status = 0; _req->complete (_ep, _req); spin_lock (&dum->lock); - } - list_add_tail (&req->queue, &ep->queue); + } else + list_add_tail(&req->queue, &ep->queue); spin_unlock_irqrestore (&dum->lock, flags); /* real hardware would likely enable transfers here, in case diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index d8faccf2789..5ee1590b8e9 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -47,18 +47,37 @@ struct f_acm { u8 ctrl_id, data_id; u8 port_num; - struct usb_descriptor_header **fs_function; + u8 pending; + + /* lock is mostly for pending and notify_req ... they get accessed + * by callbacks both from tty (open/close/break) under its spinlock, + * and notify_req.complete() which can't use that lock. + */ + spinlock_t lock; + struct acm_ep_descs fs; - struct usb_descriptor_header **hs_function; struct acm_ep_descs hs; struct usb_ep *notify; struct usb_endpoint_descriptor *notify_desc; + struct usb_request *notify_req; struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ + + /* SetControlLineState request -- CDC 1.1 section 6.2.14 (INPUT) */ u16 port_handshake_bits; -#define RS232_RTS (1 << 1) /* unused with full duplex */ -#define RS232_DTR (1 << 0) /* host is ready for data r/w */ +#define ACM_CTRL_RTS (1 << 1) /* unused with full duplex */ +#define ACM_CTRL_DTR (1 << 0) /* host is ready for data r/w */ + + /* SerialState notification -- CDC 1.1 section 6.3.5 (OUTPUT) */ + u16 serial_state; +#define ACM_CTRL_OVERRUN (1 << 6) +#define ACM_CTRL_PARITY (1 << 5) +#define ACM_CTRL_FRAMING (1 << 4) +#define ACM_CTRL_RI (1 << 3) +#define ACM_CTRL_BRK (1 << 2) +#define ACM_CTRL_DSR (1 << 1) +#define ACM_CTRL_DCD (1 << 0) }; static inline struct f_acm *func_to_acm(struct usb_function *f) @@ -66,12 +85,17 @@ static inline struct f_acm *func_to_acm(struct usb_function *f) return container_of(f, struct f_acm, port.func); } +static inline struct f_acm *port_to_acm(struct gserial *p) +{ + return container_of(p, struct f_acm, port); +} + /*-------------------------------------------------------------------------*/ /* notification endpoint uses smallish and infrequent fixed-size messages */ #define GS_LOG2_NOTIFY_INTERVAL 5 /* 1 << 5 == 32 msec */ -#define GS_NOTIFY_MAXPACKET 8 +#define GS_NOTIFY_MAXPACKET 10 /* notification + 2 bytes */ /* interface and class descriptors: */ @@ -117,7 +141,7 @@ static struct usb_cdc_acm_descriptor acm_descriptor __initdata = { .bLength = sizeof(acm_descriptor), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_ACM_TYPE, - .bmCapabilities = (1 << 1), + .bmCapabilities = USB_CDC_CAP_LINE, }; static struct usb_cdc_union_desc acm_union_desc __initdata = { @@ -277,6 +301,11 @@ static int acm_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) /* composite driver infrastructure handles everything except * CDC class messages; interface activation uses set_alt(). + * + * Note CDC spec table 4 lists the ACM request profile. It requires + * encapsulated command support ... we don't handle any, and respond + * to them by stalling. Options include get/set/clear comm features + * (not that useful) and SEND_BREAK. */ |