diff options
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/composite.c | 22 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/f_fs.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/f_mass_storage.c | 36 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/f_mass_storage.h | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/f_tcm.c | 11 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/u_ether.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/u_serial.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/legacy/acm_ms.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/legacy/mass_storage.c | 4 | ||||
| -rw-r--r-- | drivers/usb/gadget/legacy/multi.c | 12 | ||||
| -rw-r--r-- | drivers/usb/gadget/legacy/nokia.c | 7 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/at91_udc.c | 5 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/pch_udc.c | 175 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/r8a66597-udc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/udc-core.c | 26 |
16 files changed, 108 insertions, 207 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index af5d922a8f5d..2057add439f0 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -15,6 +15,7 @@ menuconfig USB_GADGET tristate "USB Gadget Support" + select USB_COMMON select NLS help USB is a master/slave protocol, organized with one master diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 524e233d48de..d67de0d22a2b 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -66,20 +66,36 @@ function_descriptors(struct usb_function *f, { struct usb_descriptor_header **descriptors; + /* + * NOTE: we try to help gadget drivers which might not be setting + * max_speed appropriately. + */ + switch (speed) { case USB_SPEED_SUPER_PLUS: descriptors = f->ssp_descriptors; - break; + if (descriptors) + break; + /* FALLTHROUGH */ case USB_SPEED_SUPER: descriptors = f->ss_descriptors; - break; + if (descriptors) + break; + /* FALLTHROUGH */ case USB_SPEED_HIGH: descriptors = f->hs_descriptors; - break; + if (descriptors) + break; + /* FALLTHROUGH */ default: descriptors = f->fs_descriptors; } + /* + * if we can't find any descriptors at all, then this gadget deserves to + * Oops with a NULL pointer dereference + */ + return descriptors; } diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 15b648cbc75c..73515d54e1cc 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -651,7 +651,7 @@ static void ffs_user_copy_worker(struct work_struct *work) if (io_data->read && ret > 0) { use_mm(io_data->mm); ret = copy_to_iter(io_data->buf, ret, &io_data->data); - if (iov_iter_count(&io_data->data)) + if (ret != io_data->req->actual && iov_iter_count(&io_data->data)) ret = -EFAULT; unuse_mm(io_data->mm); } diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index acf210f16328..5c6d4d7ca605 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -2977,25 +2977,6 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, } EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string); -int fsg_common_run_thread(struct fsg_common *common) -{ - common->state = FSG_STATE_IDLE; - /* Tell the thread to start working */ - common->thread_task = - kthread_create(fsg_main_thread, common, "file-storage"); - if (IS_ERR(common->thread_task)) { - common->state = FSG_STATE_TERMINATED; - return PTR_ERR(common->thread_task); - } - - DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task)); - - wake_up_process(common->thread_task); - - return 0; -} -EXPORT_SYMBOL_GPL(fsg_common_run_thread); - static void fsg_common_release(struct kref *ref) { struct fsg_common *common = container_of(ref, struct fsg_common, ref); @@ -3005,6 +2986,7 @@ static void fsg_common_release(struct kref *ref) if (common->state != FSG_STATE_TERMINATED) { raise_exception(common, FSG_STATE_EXIT); wait_for_completion(&common->thread_notifier); + common->thread_task = NULL; } for (i = 0; i < ARRAY_SIZE(common->luns); ++i) { @@ -3050,9 +3032,21 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) if (ret) return ret; fsg_common_set_inquiry_string(fsg->common, NULL, NULL); - ret = fsg_common_run_thread(fsg->common); - if (ret) + } + + if (!common->thread_task) { + common->state = FSG_STATE_IDLE; + common->thread_task = + kthread_create(fsg_main_thread, common, "file-storage"); + if (IS_ERR(common->thread_task)) { + int ret = PTR_ERR(common->thread_task); + common->thread_task = NULL; + common->state = FSG_STATE_TERMINATED; return ret; + } + DBG(common, "I/O thread pid: %d\n", + task_pid_nr(common->thread_task)); + wake_up_process(common->thread_task); } fsg->gadget = gadget; diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h index 445df6775609..b6a9918eaefb 100644 --- a/drivers/usb/gadget/function/f_mass_storage.h +++ b/drivers/usb/gadget/function/f_mass_storage.h @@ -153,8 +153,6 @@ int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg); void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, const char *pn); -int fsg_common_run_thread(struct fsg_common *common); - void fsg_config_from_params(struct fsg_config *cfg, const struct fsg_module_parameters *params, unsigned int fsg_num_buffers); diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 2ace0295408e..35fe3c80cfc0 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -1290,15 +1290,6 @@ static void usbg_release_cmd(struct se_cmd *se_cmd) percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); } -static int usbg_shutdown_session(struct se_session *se_sess) -{ - return 0; -} - -static void usbg_close_session(struct se_session *se_sess) -{ -} - static u32 usbg_sess_get_index(struct se_session *se_sess) { return 0; @@ -1735,8 +1726,6 @@ static const struct target_core_fabric_ops usbg_ops = { .tpg_check_prod_mode_write_protect = usbg_check_false, .tpg_get_inst_index = usbg_tpg_get_inst_index, .release_cmd = usbg_release_cmd, - .shutdown_session = usbg_shutdown_session, - .close_session = usbg_close_session, .sess_get_index = usbg_sess_get_index, .sess_get_initiator_sid = NULL, .write_pending = usbg_send_write_request, diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 637809e3bd0d..a3f7e7c55ebb 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -597,7 +597,7 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, DBG(dev, "tx queue err %d\n", retval); break; case 0: - net->trans_start = jiffies; + netif_trans_update(net); atomic_inc(&dev->tx_qlen); } diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c index 6af145f2a99d..3580f198df8b 100644 --- a/drivers/usb/gadget/function/u_serial.c +++ b/drivers/usb/gadget/function/u_serial.c @@ -512,7 +512,7 @@ static void gs_rx_push(unsigned long _port) req = list_first_entry(queue, struct usb_request, list); /* leave data queued if tty was rx throttled */ - if (tty && test_bit(TTY_THROTTLED, &tty->flags)) + if (tty && tty_throttled(tty)) break; switch (req->status) { @@ -579,7 +579,7 @@ static void gs_rx_push(unsigned long _port) * from starving ... but it's not clear that case ever happens. */ if (!list_empty(queue) && tty) { - if (!test_bit(TTY_THROTTLED, &tty->flags)) { + if (!tty_throttled(tty)) { if (do_push) tasklet_schedule(&port->push); else diff --git a/drivers/usb/gadget/legacy/acm_ms.c b/drivers/usb/gadget/legacy/acm_ms.c index c16089efc322..c39de65a448b 100644 --- a/drivers/usb/gadget/legacy/acm_ms.c +++ b/drivers/usb/gadget/legacy/acm_ms.c @@ -133,10 +133,6 @@ static int acm_ms_do_config(struct usb_configuration *c) if (status < 0) goto put_msg; - status = fsg_common_run_thread(opts->common); - if (status) - goto remove_acm; - status = usb_add_function(c, f_msg); if (status) goto remove_acm; diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c index e61af53c7d2b..125974f32f50 100644 --- a/drivers/usb/gadget/legacy/mass_storage.c +++ b/drivers/usb/gadget/legacy/mass_storage.c @@ -132,10 +132,6 @@ static int msg_do_config(struct usb_configuration *c) if (IS_ERR(f_msg)) return PTR_ERR(f_msg); - ret = fsg_common_run_thread(opts->common); - if (ret) - goto put_func; - ret = usb_add_function(c, f_msg); if (ret) goto put_func; diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c index 229d704a620b..a70a406580ea 100644 --- a/drivers/usb/gadget/legacy/multi.c +++ b/drivers/usb/gadget/legacy/multi.c @@ -137,7 +137,6 @@ static struct usb_function *f_msg_rndis; static int rndis_do_config(struct usb_configuration *c) { - struct fsg_opts *fsg_opts; int ret; if (gadget_is_otg(c->cdev->gadget)) { @@ -169,11 +168,6 @@ static int rndis_do_config(struct usb_configuration *c) goto err_fsg; } - fsg_opts = fsg_opts_from_func_inst(fi_msg); - ret = fsg_common_run_thread(fsg_opts->common); - if (ret) - goto err_run; - ret = usb_add_function(c, f_msg_rndis); if (ret) goto err_run; @@ -225,7 +219,6 @@ static struct usb_function *f_msg_multi; static int cdc_do_config(struct usb_configuration *c) { - struct fsg_opts *fsg_opts; int ret; if (gadget_is_otg(c->cdev->gadget)) { @@ -258,11 +251,6 @@ static int cdc_do_config(struct usb_configuration *c) goto err_fsg; } - fsg_opts = fsg_opts_from_func_inst(fi_msg); - ret = fsg_common_run_thread(fsg_opts->common); - if (ret) - goto err_run; - ret = usb_add_function(c, f_msg_multi); if (ret) goto err_run; diff --git a/drivers/usb/gadget/legacy/nokia.c b/drivers/usb/gadget/legacy/nokia.c index 09975046c694..b1e535f4022e 100644 --- a/drivers/usb/gadget/legacy/nokia.c +++ b/drivers/usb/gadget/legacy/nokia.c @@ -152,7 +152,6 @@ static int nokia_bind_config(struct usb_configuration *c) struct usb_function *f_ecm; struct usb_function *f_obex2 = NULL; struct usb_function *f_msg; - struct fsg_opts *fsg_opts; int status = 0; int obex1_stat = -1; int obex2_stat = -1; @@ -222,12 +221,6 @@ static int nokia_bind_config(struct usb_configuration *c) goto err_ecm; } - fsg_opts = fsg_opts_from_func_inst(fi_msg); - - status = fsg_common_run_thread(fsg_opts->common); - if (status) - goto err_msg; - status = usb_add_function(c, f_msg); if (status) goto err_msg; diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c index d0d18947f58b..8bc78418d40e 100644 --- a/drivers/usb/gadget/udc/at91_udc.c +++ b/drivers/usb/gadget/udc/at91_udc.c @@ -1726,10 +1726,7 @@ static int at91sam9261_udc_init(struct at91_udc *udc) udc->matrix = syscon_regmap_lookup_by_phandle(udc->pdev->dev.of_node, "atmel,matrix"); - if (IS_ERR(udc->matrix)) - return PTR_ERR(udc->matrix); - - return 0; + return PTR_ERR_OR_ZERO(udc->matrix); } static void at91sam9261_udc_pullup(struct at91_udc *udc, int is_on) diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c index 9571ef54b86b..ebc51ec5790a 100644 --- a/drivers/usb/gadget/udc/pch_udc.c +++ b/drivers/usb/gadget/udc/pch_udc.c @@ -325,11 +325,8 @@ struct pch_vbus_gpio_data { * @pdev: reference to the PCI device * @ep: array of endpoints * @lock: protects all state - * @active: enabled the PCI device * @stall: stall requested * @prot_stall: protcol stall requested - * @irq_registered: irq registered with system - * @mem_region: device memory mapped * @registered: driver registered with system * @suspended: driver in suspended state * @connected: gadget driver associated @@ -339,12 +336,8 @@ struct pch_vbus_gpio_data { * @data_requests: DMA pool for data requests * @stp_requests: DMA pool for setup requests * @dma_addr: DMA pool for received - * @ep0out_buf: Buffer for DMA * @setup_data: Received setup data - * @phys_addr: of device memory * @base_addr: for mapped device memory - * @bar: Indicates which PCI BAR for USB regs - * @irq: IRQ line for the device * @cfg_data: current cfg, intf, and alt in use * @vbus_gpio: GPIO informaton for detecting VBUS */ @@ -354,11 +347,9 @@ struct pch_udc_dev { struct pci_dev *pdev; struct pch_udc_ep ep[PCH_UDC_EP_NUM]; spinlock_t lock; /* protects all state */ - unsigned active:1, + unsigned stall:1, prot_stall:1, - irq_registered:1, - mem_region:1, suspended:1, connected:1, vbus_session:1, @@ -367,12 +358,8 @@ struct pch_udc_dev { struct pci_pool *data_requests; struct pci_pool *stp_requests; dma_addr_t dma_addr; - void *ep0out_buf; struct usb_ctrlrequest setup_data; - unsigned long phys_addr; void __iomem *base_addr; - unsigned bar; - unsigned irq; struct pch_udc_cfg_data cfg_data; struct pch_vbus_gpio_data vbus_gpio; }; @@ -380,8 +367,10 @@ struct pch_udc_dev { #define PCH_UDC_PCI_BAR_QUARK_X1000 0 #define PCH_UDC_PCI_BAR 1 -#define PCI_DEVICE_ID_INTEL_EG20T_UDC 0x8808 + #define PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC 0x0939 +#define PCI_DEVICE_ID_INTEL_EG20T_UDC 0x8808 + #define PCI_VENDOR_ID_ROHM 0x10DB #define PCI_DEVICE_ID_ML7213_IOH_UDC 0x801D #define PCI_DEVICE_ID_ML7831_IOH_UDC 0x8808 @@ -1732,14 +1721,12 @@ static int pch_udc_pcd_ep_enable(struct usb_ep *usbep, static int pch_udc_pcd_ep_disable(struct usb_ep *usbep) { struct pch_udc_ep *ep; - struct pch_udc_dev *dev; unsigned long iflags; if (!usbep) return -EINVAL; ep = container_of(usbep, struct pch_udc_ep, ep); - dev = ep->dev; if ((usbep->name == ep0_string) || !ep->ep.desc) return -EINVAL; @@ -1770,12 +1757,10 @@ static struct usb_request *pch_udc_alloc_request(struct usb_ep *usbep, struct pch_udc_request *req; struct pch_udc_ep *ep; struct pch_udc_data_dma_desc *dma_desc; - struct pch_udc_dev *dev; if (!usbep) return NULL; ep = container_of(usbep, struct pch_udc_ep, ep); - dev = ep->dev; req = kzalloc(sizeof *req, gfp); if (!req) return NULL; @@ -1948,12 +1933,10 @@ static int pch_udc_pcd_dequeue(struct usb_ep *usbep, { struct pch_udc_ep *ep; struct pch_udc_request *req; - struct pch_udc_dev *dev; unsigned long flags; int ret = -EINVAL; ep = container_of(usbep, struct pch_udc_ep, ep); - dev = ep->dev; if (!usbep || !usbreq || (!ep->ep.desc && ep->num)) return ret; req = container_of(usbreq, struct pch_udc_request, req); @@ -1985,14 +1968,12 @@ static int pch_udc_pcd_dequeue(struct usb_ep *usbep, static int pch_udc_pcd_set_halt(struct usb_ep *usbep, int halt) { struct pch_udc_ep *ep; - struct pch_udc_dev *dev; unsigned long iflags; int ret; if (!usbep) return -EINVAL; ep = container_of(usbep, struct pch_udc_ep, ep); - dev = ep->dev; if (!ep->ep.desc && !ep->num) return -EINVAL; if (!ep->dev->driver || (ep->dev->gadget.speed == USB_SPEED_UNKNOWN)) @@ -2030,14 +2011,12 @@ static int pch_udc_pcd_set_halt(struct usb_ep *usbep, int halt) static int pch_udc_pcd_set_wedge(struct usb_ep *usbep) { struct pch_udc_ep *ep; - struct pch_udc_dev *dev; unsigned long iflags; int ret; if (!usbep) return -EINVAL; ep = container_of(usbep, struct pch_udc_ep, ep); - dev = ep->dev; if (!ep->ep.desc && !ep->num) return -EINVAL; if (!ep->dev->driver || (ep->dev->gadget.speed == USB_SPEED_UNKNOWN)) @@ -2647,7 +2626,7 @@ static void pch_udc_svc_enum_interrupt(struct pch_udc_dev *dev) static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev) { u32 reg, dev_stat = 0; - int i, ret; + int i; dev_stat = pch_udc_read_device_status(dev); dev->cfg_data.cur_intf = (dev_stat & UDC_DEVSTS_INTF_MASK) >> @@ -2676,7 +2655,7 @@ static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev) } dev->stall = 0; spin_lock(&dev->lock); - ret = dev->driver->setup(&dev->gadget, &dev->setup_data); + dev->driver->setup(&dev->gadget, &dev->setup_data); spin_unlock(&dev->lock); } @@ -2687,7 +2666,7 @@ static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev) */ static void pch_udc_svc_cfg_interrupt(struct pch_udc_dev *dev) { - int i, ret; + int i; u32 reg, dev_stat = 0; dev_stat = pch_udc_read_device_status(dev); @@ -2713,7 +2692,7 @@ static void pch_udc_svc_cfg_interrupt(struct pch_udc_dev *dev) /* call gadget zero with setup data received */ spin_lock(&dev->lock); - ret = dev->driver->setup(&dev->gadget, &dev->setup_data); + dev->driver->setup(&dev->gadget, &dev->setup_data); spin_unlock(&dev->lock); } @@ -2856,17 +2835,6 @@ static void pch_udc_setup_ep0(struct pch_udc_dev *dev) } /** - * gadget_release() - Free the gadget driver private data - * @pdev reference to struct pci_dev - */ -static void gadget_release(struct device *pdev) -{ - struct pch_udc_dev *dev = dev_get_drvdata(pdev); - - kfree(dev); -} - -/** * pch_udc_pcd_reinit() - This API initializes the endpoint structures * @dev: Reference to the driver structure */ @@ -2949,6 +2917,7 @@ static int init_dma_pools(struct pch_udc_dev *dev) { struct pch_udc_stp_dma_desc *td_stp; struct pch_udc_data_dma_desc *td_data; + void *ep0out_buf; /* DMA setup */ dev->data_requests = pci_pool_create("data_requests", dev->pdev, @@ -2991,10 +2960,11 @@ static int init_dma_pools(struct pch_udc_dev *dev) dev->ep[UDC_EP0IN_IDX].td_data = NULL; dev->ep[UDC_EP0IN_IDX].td_data_phys = 0; - dev->ep0out_buf = kzalloc(UDC_EP0OUT_BUFF_SIZE * 4, GFP_KERNEL); - if (!dev->ep0out_buf) + ep0out_buf = devm_kzalloc(&dev->pdev->dev, UDC_EP0OUT_BUFF_SIZE * 4, + GFP_KERNEL); + if (!ep0out_buf) return -ENOMEM; - dev->dma_addr = dma_map_single(&dev->pdev->dev, dev->ep0out_buf, + dev->dma_addr = dma_map_single(&dev->pdev->dev, ep0out_buf, UDC_EP0OUT_BUFF_SIZE * 4, DMA_FROM_DEVICE); return 0; @@ -3078,129 +3048,80 @@ static void pch_udc_remove(struct pci_dev *pdev) if (dev->dma_addr) dma_unmap_single(&dev->pdev->dev, dev->dma_addr, UDC_EP0OUT_BUFF_SIZE * 4, DMA_FROM_DEVICE); - kfree(dev->ep0out_buf); pch_vbus_gpio_free(dev); pch_udc_exit(dev); - - if (dev->irq_registered) - free_irq(pdev->irq, dev); - if (dev->base_addr) - iounmap(dev->base_addr); - if (dev->mem_region) - release_mem_region(dev->phys_addr, - pci_resource_len(pdev, dev->bar)); - if (dev->active) - pci_disable_device(pdev); - kfree(dev); } -#ifdef CONFIG_PM -static int pch_udc_suspend(struct pci_dev *pdev, pm_message_t state) +#ifdef CONFIG_PM_SLEEP +static int pch_udc_suspend(struct device *d) { + struct pci_dev *pdev = to_pci_dev(d); struct pch_udc_dev *dev = pci_get_drvdata(pdev); pch_udc_disable_interrupts(dev, UDC_DEVINT_MSK); pch_udc_disable_ep_interrupts(dev, UDC_EPINT_MSK_DISABLE_ALL); - pci_disable_device(pdev); - pci_enable_wake(pdev, PCI_D3hot, 0); - - if (pci_save_state(pdev)) { - dev_err(&pdev->dev, - "%s: could not save PCI config state\n", __func__); - return -ENOMEM; - } - pci_set_power_state(pdev, pci_choose_state(pdev, state)); return 0; } -static int pch_udc_resume(struct pci_dev *pdev) +static int pch_udc_resume(struct device *d) { - int ret; - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - ret = pci_enable_device(pdev); - if (ret) { - dev_err(&pdev->dev, "%s: pci_enable_device failed\n", __func__); - return ret; - } - pci_enable_wake(pdev, PCI_D3hot, 0); return 0; } + +static SIMPLE_DEV_PM_OPS(pch_udc_pm, pch_udc_suspend, pch_udc_resume); +#define PCH_UDC_PM_OPS (&pch_udc_pm) #else -#define pch_udc_suspend NULL -#define pch_udc_resume NULL -#endif /* CONFIG_PM */ +#define PCH_UDC_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ static int pch_udc_probe(struct pci_dev *pdev, const struct pci_device_id *id) { - unsigned long resource; - unsigned long len; + int bar; int retval; struct pch_udc_dev *dev; /* init */ - dev = kzalloc(sizeof *dev, GFP_KERNEL); - if (!dev) { - pr_err("%s: no memory for device structure\n", __func__); + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) return -ENOMEM; - } + /* pci setup */ - if (pci_enable_device(pdev) < 0) { - kfree(dev); - pr_err("%s: pci_enable_device failed\n", __func__); - return -ENODEV; - } - dev->active = 1; + retval = pcim_enable_device(pdev); + if (retval) + return retval; + pci_set_drvdata(pdev, dev); /* Determine BAR based on PCI ID */ if (id->device == PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC) - dev->bar = PCH_UDC_PCI_BAR_QUARK_X1000; + bar = PCH_UDC_PCI_BAR_QUARK_X1000; else - dev->bar = PCH_UDC_PCI_BAR; + bar = PCH_UDC_PCI_BAR; /* PCI resource allocation */ - resource = pci_resource_start(pdev, dev->bar); - len = pci_resource_len(pdev, dev->bar); + retval = pcim_iomap_regions(pdev, 1 << bar, pci_name(pdev)); + if (retval) + return retval; - if (!request_mem_region(resource, len, KBUILD_MODNAME)) { - dev_err(&pdev->dev, "%s: pci device used already\n", __func__); - retval = -EBUSY; - goto finished; - } - dev->phys_addr = resource; - dev->mem_region = 1; + dev->base_addr = pcim_iomap_table(pdev)[bar]; - dev->base_addr = ioremap_nocache(resource, len); - if (!dev->base_addr) { - pr_err("%s: device memory cannot be mapped\n", __func__); - retval = -ENOMEM; - goto finished; - } - if (!pdev->irq) { - dev_err(&pdev->dev, "%s: irq not set\n", __func__); - retval = -ENODEV; - goto finished; - } /* initialize the hardware */ - if (pch_udc_pcd_init(dev)) { - retval = -ENODEV; - goto finished; - } - if (request_irq(pdev->irq, pch_udc_isr, IRQF_SHARED, KBUILD_MODNAME, - dev)) { + if (pch_udc_pcd_init(dev)) + return -ENODEV; + + pci_enable_msi(pdev); + + retval = devm_request_irq(&pdev->dev, pdev->irq, pch_udc_isr, + IRQF_SHARED, KBUILD_MODNAME, dev); + if (retval) { dev_err(&pdev->dev, "%s: request_irq(%d) fail\n", __func__, pdev->irq); - retval = -ENODEV; goto finished; } - dev->irq = pdev->irq; - dev->irq_registered = 1; pci_set_master(pdev); pci_try_set_mwi(pdev); @@ -3219,8 +3140,7 @@ static int pch_udc_probe(struct pci_dev *pdev, /* Put the device in disconnected state till a driver is bound */ pch_udc_set_disconnect(dev); - retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, - gadget_release); + retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); if (retval) goto finished; return 0; @@ -3262,9 +3182,10 @@ static struct pci_driver pch_udc_driver = { .id_table = pch_udc_pcidev_id, .probe = pch_udc_probe, .remove = pch_udc_remove, - .suspend = pch_udc_suspend, - .resume = pch_udc_resume, .shutdown = pch_udc_shutdown, + .driver = { + .pm = PCH_UDC_PM_OPS, + }, }; module_pci_driver(pch_udc_driver); diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index baa0609a429d..8b300e6da7fc 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -296,7 +296,7 @@ static void r8a66597_change_curpipe(struct r8a66597 *r8a66597, u16 pipenum, } while ((tmp & mask) != loop); } -static inline void pipe_change(struct r8a66597 *r8a66597, u16 pipenum) +static void pipe_change(struct r8a66597 *r8a66597, u16 pipenum) { struct r8a66597_ep *ep = r8a66597->pipenum2ep[pipenum]; diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index e4e70e11d0f6..6e8300d6a737 100644 --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -61,11 +61,9 @@ static int udc_bind_to_driver(struct usb_udc *udc, #ifdef CONFIG_HAS_DMA -int usb_gadget_map_request(struct usb_gadget *gadget, +int usb_gadget_map_request_by_dev(struct device *dev, struct usb_request *req, int is_in) { - struct device *dev = gadget->dev.parent; - if (req->length == 0) return 0; @@ -75,7 +73,7 @@ int usb_gadget_map_request(struct usb_gadget *gadget, mapped = dma_map_sg(dev, req->sg, req->num_sgs, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); if (mapped == 0) { - dev_err(&gadget->dev, "failed to map SGs\n"); + dev_err(dev, "failed to map SGs\n"); return -EFAULT; } @@ -92,24 +90,38 @@ int usb_gadget_map_request(struct usb_gadget *gadget, return 0; } +EXPORT_SYMBOL_GPL(usb_gadget_map_request_by_dev); + +int usb_gadget_map_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in) +{ + return usb_gadget_map_request_by_dev(gadget->dev.parent, req, is_in); +} EXPORT_SYMBOL_GPL(usb_gadget_map_request); -void usb_gadget_unmap_request(struct usb_gadget *gadget, +void usb_gadget_unmap_request_by_dev(struct device *dev, struct usb_request *req, int is_in) { if (req->length == 0) return; if (req->num_mapped_sgs) { - dma_unmap_sg(gadget->dev.parent, req->sg, req->num_mapped_sgs, + dma_unmap_sg(dev, req->sg, req->num_mapped_sgs, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->num_mapped_sgs = 0; } else { - dma_unmap_single(gadget->dev.parent, req->dma, req->length, + dma_unmap_single(dev, req->dma, req->length, is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); } } +EXPORT_SYMBOL_GPL(usb_gadget_unmap_request_by_dev); + +void usb_gadget_unmap_request(struct usb_gadget *gadget, + struct usb_request *req, int is_in) +{ + usb_gadget_unmap_request_by_dev(gadget->dev.parent, req, is_in); +} EXPORT_SYMBOL_GPL(usb_gadget_unmap_request); #endif /* CONFIG_HAS_DMA */ |