diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-20 11:39:34 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-20 11:39:34 +0800 |
commit | 24040a58379e2f2fa6aa9466911b758073b6bdfa (patch) | |
tree | 772a93302d0e2e0f2aa333bb10a060e2e886c645 /drivers/usb/gadget/composite.c | |
parent | 571949a40a9c00fdaa3d0256cf43c9e0c25ff2d1 (diff) | |
parent | 0591bc2360152f851e29246884805bb77a2c3b9d (diff) | |
download | linux-24040a58379e2f2fa6aa9466911b758073b6bdfa.tar.bz2 |
Merge tag 'usb-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing
Felipe writes:
usb: changes for v4.13 merge window
This time around we have a total of 57 non-merge commits. A list of
most important changes follows:
- Improvements to dwc3 tracing interface
- Initial dual-role support for dwc3
- Improvements to how we handle DMA resources in dwc3
- A new f_uac1 implementation which much more flexible
- Removal of AVR32 bits
- Improvements to f_mass_storage driver
Diffstat (limited to 'drivers/usb/gadget/composite.c')
-rw-r--r-- | drivers/usb/gadget/composite.c | 59 |
1 files changed, 34 insertions, 25 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 45b554032332..dd74c99d6ce1 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -610,7 +610,6 @@ static int count_configs(struct usb_composite_dev *cdev, unsigned type) static int bos_desc(struct usb_composite_dev *cdev) { struct usb_ext_cap_descriptor *usb_ext; - struct usb_ss_cap_descriptor *ss_cap; struct usb_dcd_config_params dcd_config_params; struct usb_bos_descriptor *bos = cdev->req->buf; @@ -636,29 +635,35 @@ static int bos_desc(struct usb_composite_dev *cdev) * The Superspeed USB Capability descriptor shall be implemented by all * SuperSpeed devices. */ - ss_cap = cdev->req->buf + le16_to_cpu(bos->wTotalLength); - bos->bNumDeviceCaps++; - le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SS_CAP_SIZE); - ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE; - ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY; - ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE; - ss_cap->bmAttributes = 0; /* LTM is not supported yet */ - ss_cap->wSpeedSupported = cpu_to_le16(USB_LOW_SPEED_OPERATION | - USB_FULL_SPEED_OPERATION | - USB_HIGH_SPEED_OPERATION | - USB_5GBPS_OPERATION); - ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION; - - /* Get Controller configuration */ - if (cdev->gadget->ops->get_config_params) - cdev->gadget->ops->get_config_params(&dcd_config_params); - else { - dcd_config_params.bU1devExitLat = USB_DEFAULT_U1_DEV_EXIT_LAT; - dcd_config_params.bU2DevExitLat = - cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT); + if (gadget_is_superspeed(cdev->gadget)) { + struct usb_ss_cap_descriptor *ss_cap; + + ss_cap = cdev->req->buf + le16_to_cpu(bos->wTotalLength); + bos->bNumDeviceCaps++; + le16_add_cpu(&bos->wTotalLength, USB_DT_USB_SS_CAP_SIZE); + ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE; + ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY; + ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE; + ss_cap->bmAttributes = 0; /* LTM is not supported yet */ + ss_cap->wSpeedSupported = cpu_to_le16(USB_LOW_SPEED_OPERATION | + USB_FULL_SPEED_OPERATION | + USB_HIGH_SPEED_OPERATION | + USB_5GBPS_OPERATION); + ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION; + + /* Get Controller configuration */ + if (cdev->gadget->ops->get_config_params) { + cdev->gadget->ops->get_config_params( + &dcd_config_params); + } else { + dcd_config_params.bU1devExitLat = + USB_DEFAULT_U1_DEV_EXIT_LAT; + dcd_config_params.bU2DevExitLat = + cpu_to_le16(USB_DEFAULT_U2_DEV_EXIT_LAT); + } + ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat; + ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat; } - ss_cap->bU1devExitLat = dcd_config_params.bU1devExitLat; - ss_cap->bU2DevExitLat = dcd_config_params.bU2DevExitLat; /* The SuperSpeedPlus USB Device Capability descriptor */ if (gadget_is_superspeed_plus(cdev->gadget)) { @@ -1602,7 +1607,10 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) cdev->desc.bcdUSB = cpu_to_le16(0x0210); } } else { - cdev->desc.bcdUSB = cpu_to_le16(0x0200); + if (gadget->lpm_capable) + cdev->desc.bcdUSB = cpu_to_le16(0x0201); + else + cdev->desc.bcdUSB = cpu_to_le16(0x0200); } value = min(w_length, (u16) sizeof cdev->desc); @@ -1633,7 +1641,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) value = min(w_length, (u16) value); break; case USB_DT_BOS: - if (gadget_is_superspeed(gadget)) { + if (gadget_is_superspeed(gadget) || + gadget->lpm_capable) { value = bos_desc(cdev); value = min(w_length, (u16) value); } |