diff options
31 files changed, 81 insertions, 72 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index b870872..70fc430 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,7 +1,6 @@ config USB_DWC3 tristate "DesignWare USB3 DRD Core Support" depends on (USB || USB_GADGET) && HAS_DMA - depends on EXTCON select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD help Say Y or M here if your system has a Dual Role SuperSpeed diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 9b13812..997ebe4 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -28,6 +28,7 @@ /* FIXME define these in <linux/pci_ids.h> */ #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd +#define PCI_DEVICE_ID_INTEL_BYT 0x0f37 struct dwc3_pci { struct device *dev; @@ -187,6 +188,7 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, { } /* Terminating Entry */ }; MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index f168eae..5452c0f 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2611,15 +2611,13 @@ int dwc3_gadget_init(struct dwc3 *dwc) ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); if (ret) { dev_err(dwc->dev, "failed to register udc\n"); - goto err5; + goto err4; } return 0; -err5: - dwc3_gadget_free_endpoints(dwc); - err4: + dwc3_gadget_free_endpoints(dwc); dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, dwc->ep0_bounce, dwc->ep0_bounce_addr); diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 5a5acf2..e126b6b 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -113,12 +113,6 @@ static int __init cdc_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - fi_ecm = usb_get_function_instance("ecm"); - if (IS_ERR(fi_ecm)) { - status = PTR_ERR(fi_ecm); - goto err_func_ecm; - } - f_ecm = usb_get_function(fi_ecm); if (IS_ERR(f_ecm)) { status = PTR_ERR(f_ecm); @@ -129,35 +123,24 @@ static int __init cdc_do_config(struct usb_configuration *c) if (status) goto err_add_ecm; - fi_serial = usb_get_function_instance("acm"); - if (IS_ERR(fi_serial)) { - status = PTR_ERR(fi_serial); - goto err_get_acm; - } - f_acm = usb_get_function(fi_serial); if (IS_ERR(f_acm)) { status = PTR_ERR(f_acm); - goto err_func_acm; + goto err_get_acm; } status = usb_add_function(c, f_acm); if (status) goto err_add_acm; - return 0; err_add_acm: usb_put_function(f_acm); -err_func_acm: - usb_put_function_instance(fi_serial); err_get_acm: usb_remove_function(c, f_ecm); err_add_ecm: usb_put_function(f_ecm); err_get_ecm: - usb_put_function_instance(fi_ecm); -err_func_ecm: return status; } diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 06ecd08..b8a2376 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -923,8 +923,9 @@ static int dummy_udc_stop(struct usb_gadget *g, struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); struct dummy *dum = dum_hcd->dum; - dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", - driver->driver.name); + if (driver) + dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", + driver->driver.name); dum->driver = NULL; @@ -1000,8 +1001,8 @@ static int dummy_udc_remove(struct platform_device *pdev) { struct dummy *dum = platform_get_drvdata(pdev); - usb_del_gadget_udc(&dum->gadget); device_remove_file(&dum->gadget.dev, &dev_attr_function); + usb_del_gadget_udc(&dum->gadget); return 0; } diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index edab45d..8d9e6f7 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -995,7 +995,7 @@ static void ecm_unbind(struct usb_configuration *c, struct usb_function *f) usb_ep_free_request(ecm->notify, ecm->notify_req); } -struct usb_function *ecm_alloc(struct usb_function_instance *fi) +static struct usb_function *ecm_alloc(struct usb_function_instance *fi) { struct f_ecm *ecm; struct f_ecm_opts *opts; diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index d00392d..d61c11d 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -624,7 +624,7 @@ static void eem_unbind(struct usb_configuration *c, struct usb_function *f) usb_free_all_descriptors(f); } -struct usb_function *eem_alloc(struct usb_function_instance *fi) +static struct usb_function *eem_alloc(struct usb_function_instance *fi) { struct f_eem *eem; struct f_eem_opts *opts; diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 313b835..a01d7d3 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2260,10 +2260,12 @@ reset: /* Disable the endpoints */ if (fsg->bulk_in_enabled) { usb_ep_disable(fsg->bulk_in); + fsg->bulk_in->driver_data = NULL; fsg->bulk_in_enabled = 0; } if (fsg->bulk_out_enabled) { usb_ep_disable(fsg->bulk_out); + fsg->bulk_out->driver_data = NULL; fsg->bulk_out_enabled = 0; } diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index 32db2ee..bbbfd19 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1214,6 +1214,6 @@ static struct platform_driver fotg210_driver = { module_platform_driver(fotg210_driver); -MODULE_AUTHOR("Yuan-Hsin Chen <yhchen@faraday-tech.com>"); +MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang <john453@faraday-tech.com>"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index f1dd6da..b278abe 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -22,7 +22,7 @@ MODULE_DESCRIPTION("FUSB300 USB gadget driver"); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Yuan Hsin Chen <yhchen@faraday-tech.com>"); +MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang <john453@faraday-tech.com>"); MODULE_ALIAS("platform:fusb300_udc"); #define DRIVER_VERSION "20 October 2010" diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 2a1ebef..2339325 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -179,7 +179,7 @@ err_conf: return ret; } -static int rndis_config_register(struct usb_composite_dev *cdev) +static __ref int rndis_config_register(struct usb_composite_dev *cdev) { static struct usb_configuration config = { .bConfigurationValue = MULTI_RNDIS_CONFIG_NUM, @@ -194,7 +194,7 @@ static int rndis_config_register(struct usb_composite_dev *cdev) #else -static int rndis_config_register(struct usb_composite_dev *cdev) +static __ref int rndis_config_register(struct usb_composite_dev *cdev) { return 0; } @@ -241,7 +241,7 @@ err_conf: return ret; } -static int cdc_config_register(struct usb_composite_dev *cdev) +static __ref int cdc_config_register(struct usb_composite_dev *cdev) { static struct usb_configuration config = { .bConfigurationValue = MULTI_CDC_CONFIG_NUM, @@ -256,7 +256,7 @@ static int cdc_config_register(struct usb_composite_dev *cdev) #else -static int cdc_config_register(struct usb_composite_dev *cdev) +static __ref int cdc_config_register(struct usb_composite_dev *cdev) { return 0; } diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index bbb6e98..561b30e 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -645,6 +645,7 @@ static int mv_u3d_ep_disable(struct usb_ep *_ep) struct mv_u3d_ep *ep; struct mv_u3d_ep_context *ep_context; u32 epxcr, direction; + unsigned long flags; if (!_ep) return -EINVAL; @@ -661,7 +662,9 @@ static int mv_u3d_ep_disable(struct usb_ep *_ep) direction = mv_u3d_ep_dir(ep); /* nuke all pending requests (does flush) */ + spin_lock_irqsave(&u3d->lock, flags); mv_u3d_nuke(ep, -ESHUTDOWN); + spin_unlock_irqrestore(&u3d->lock, flags); /* Disable the endpoint for Rx or Tx and reset the endpoint type */ if (direction == MV_U3D_EP_DIR_OUT) { diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index d69b36a..6bddf1a 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2475,8 +2475,6 @@ irq_retry: if (gintsts & GINTSTS_ErlySusp) { dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n"); writel(GINTSTS_ErlySusp, hsotg->regs + GINTSTS); - - s3c_hsotg_disconnect(hsotg); } /* @@ -2962,9 +2960,6 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget, if (!hsotg) return -ENODEV; - if (!driver || driver != hsotg->driver || !driver->unbind) - return -EINVAL; - /* all endpoints should be shutdown */ for (ep = 0; ep < hsotg->num_of_eps; ep++) s3c_hsotg_ep_disable(&hsotg->eps[ep].ep); @@ -2972,15 +2967,15 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget, spin_lock_irqsave(&hsotg->lock, flags); s3c_hsotg_phy_disable(hsotg); - regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies); - hsotg->driver = NULL; + if (!driver) + hsotg->driver = NULL; + hsotg->gadget.speed = USB_SPEED_UNKNOWN; spin_unlock_irqrestore(&hsotg->lock, flags); - dev_info(hsotg->dev, "unregistered gadget driver '%s'\n", - driver->driver.name); + regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies); return 0; } diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 947b009..4449f56 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -669,7 +669,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index b52a66c..83ab51a 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 5d6022f..86ab9fd 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1158,7 +1158,7 @@ static const struct hc_driver ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 417c10d..35cdbd8 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index ab0397e..45cc001 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 893b707..601e208 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = { #else .irq = ehci_irq, #endif - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 6cc5567..932293f 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 8188542..fd98377 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = { .product_desc = "PS3 EHCI Host Controller", .hcd_priv_size = sizeof(struct ehci_hcd), .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, .reset = ps3_ehci_hc_reset, .start = ehci_run, .stop = ehci_stop, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index e321804..a7f776a 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -247,6 +247,8 @@ static int qtd_copy_status ( static void ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) +__releases(ehci->lock) +__acquires(ehci->lock) { if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { /* ... update hc-wide periodic stats */ @@ -272,8 +274,11 @@ ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) urb->actual_length, urb->transfer_buffer_length); #endif + /* complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); + spin_unlock (&ehci->lock); usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status); + spin_lock (&ehci->lock); } static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c index 8a73449..b2de52d 100644 --- a/drivers/usb/host/ehci-sead3.c +++ b/drivers/usb/host/ehci-sead3.c @@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index dc899eb..93e59a1 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c index 67026ff..cca4be9 100644 --- a/drivers/usb/host/ehci-tilegx.c +++ b/drivers/usb/host/ehci-tilegx.c @@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = { * Generic hardware linkage. */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * Basic lifecycle operations. diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index 1c370df..59e0e24 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -108,7 +108,7 @@ static const struct hc_driver ehci_w90x900_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2|HCD_MEMORY|HCD_BH, + .flags = HCD_USB2|HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 95979f9..eba962e 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 9e0020d..abd5050 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -24,7 +24,7 @@ struct fsl_usb2_dev_data { enum fsl_usb2_operating_modes op_mode; /* operating mode */ }; -struct fsl_usb2_dev_data dr_mode_data[] = { +static struct fsl_usb2_dev_data dr_mode_data[] = { { .dr_mode = "host", .drivers = { "fsl-ehci", NULL, NULL, }, @@ -42,7 +42,7 @@ struct fsl_usb2_dev_data dr_mode_data[] = { }, }; -struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np) +static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np) { const unsigned char *prop; int i; @@ -75,7 +75,7 @@ static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type) return FSL_USB2_PHY_NONE; } -struct platform_device *fsl_usb2_device_register( +static struct platform_device *fsl_usb2_device_register( struct platform_device *ofdev, struct fsl_usb2_platform_data *pdata, const char *name, int id) diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index fc15694..4e8a040 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -79,7 +79,7 @@ static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate) return &dpll_map[i].params; } - return 0; + return NULL; } static int omap_usb3_suspend(struct usb_phy *x, int suspend) diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index c454bfa..ddb9c51 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -60,7 +60,7 @@ config USB_SERIAL_SIMPLE - Suunto ANT+ USB device. - Fundamental Software dongle. - HP4x calculators - - a number of Motoroloa phones + - a number of Motorola phones - Siemens USB/MPI adapter. - ViVOtech ViVOpay USB device. - Infineon Modem Flashloader USB interface diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index e7a84f0..bedf8e4 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -139,6 +139,7 @@ enum pl2303_type { HX_TA, /* HX(A) / X(A) / TA version */ /* TODO: improve */ HXD_EA_RA_SA, /* HXD / EA / RA / SA version */ /* TODO: improve */ TB, /* TB version */ + HX_CLONE, /* Cheap and less functional clone of the HX chip */ }; /* * NOTE: don't know the difference between type 0 and type 1, @@ -206,8 +207,23 @@ static int pl2303_startup(struct usb_serial *serial) * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB */ if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) { - type = HX_TA; - type_str = "X/HX/TA"; + /* Check if the device is a clone */ + pl2303_vendor_read(0x9494, 0, serial, buf); + /* + * NOTE: Not sure if this read is really needed. + * The HX returns 0x00, the clone 0x02, but the Windows + * driver seems to ignore the value and continues. + */ + pl2303_vendor_write(0x0606, 0xaa, serial); + pl2303_vendor_read(0x8686, 0, serial, buf); + if (buf[0] != 0xaa) { + type = HX_CLONE; + type_str = "X/HX clone (limited functionality)"; + } else { + type = HX_TA; + type_str = "X/HX/TA"; + } + pl2303_vendor_write(0x0606, 0x00, serial); } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x400) { type = HXD_EA_RA_SA; @@ -305,8 +321,9 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, { /* * NOTE: Only the values defined in baud_sup are supported ! - * => if unsupported values are set, the PL2303 seems to - * use 9600 baud (at least my PL2303X always does) + * => if unsupported values are set, the PL2303 uses 9600 baud instead + * => HX clones just don't work at unsupported baud rates < 115200 baud, + * for baud rates > 115200 they run at 115200 baud */ const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 19200, 28800, 38400, @@ -316,14 +333,14 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, * NOTE: With the exception of type_0/1 devices, the following * additional baud rates are supported (tested with HX rev. 3A only): * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800, - * 403200, 806400. (*: not HX) + * 403200, 806400. (*: not HX and HX clones) * * Maximum values: HXD, TB: 12000000; HX, TA: 6000000; - * type_0+1: 1228800; RA: 921600; SA: 115200 + * type_0+1: 1228800; RA: 921600; HX clones, SA: 115200 * * As long as we are not using this encoding method for anything else - * than the type_0+1 and HX chips, there is no point in complicating - * the code to support them. + * than the type_0+1, HX and HX clone chips, there is no point in + * complicating the code to support them. */ int i; @@ -347,6 +364,8 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, baud = min_t(int, baud, 6000000); else if (type == type_0 || type == type_1) baud = min_t(int, baud, 1228800); + else if (type == HX_CLONE) + baud = min_t(int, baud, 115200); /* Direct (standard) baud rate encoding method */ put_unaligned_le32(baud, buf); @@ -359,7 +378,8 @@ static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type, /* * Divisor based baud rate encoding method * - * NOTE: it's not clear if the type_0/1 chips support this method + * NOTE: HX clones do NOT support this method. + * It's not clear if the type_0/1 chips support it. * * divisor = 12MHz * 32 / baudrate = 2^A * B * @@ -452,7 +472,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, * 1) Direct method: encodes the baud rate value directly * => supported by all chip types * 2) Divisor based method: encodes a divisor to a base value (12MHz*32) - * => supported by HX chips (and likely not by type_0/1 chips) + * => not supported by HX clones (and likely type_0/1 chips) * * NOTE: Although the divisor based baud rate encoding method is much * more flexible, some of the standard baud rate values can not be @@ -460,7 +480,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, * the device likely uses the same baud rate generator for both methods * so that there is likley no difference. */ - if (type == type_0 || type == type_1) + if (type == type_0 || type == type_1 || type == HX_CLONE) baud = pl2303_baudrate_encode_direct(baud, type, buf); else baud = pl2303_baudrate_encode_divisor(baud, type, buf); @@ -813,6 +833,7 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state) result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), BREAK_REQUEST, BREAK_REQUEST_TYPE, state, 0, NULL, 0, 100); + /* NOTE: HX clones don't support sending breaks, -EPIPE is returned */ if (result) dev_err(&port->dev, "error sending break = %d\n", result); } |
