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GET /api/1.2/patches/811004/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 811004,
    "url": "http://patchwork.ozlabs.org/api/1.2/patches/811004/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1504790001-24715-1-git-send-email-bmeng.cn@gmail.com/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/1.2/projects/18/?format=api",
        "name": "U-Boot",
        "link_name": "uboot",
        "list_id": "u-boot.lists.denx.de",
        "list_email": "u-boot@lists.denx.de",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1504790001-24715-1-git-send-email-bmeng.cn@gmail.com>",
    "list_archive_url": null,
    "date": "2017-09-07T13:13:17",
    "name": "[U-Boot,1/5] dm: usb: Add a new USB controller operation 'get_max_xfer_size'",
    "commit_ref": "3e59f59015e39ceb870fa8a7a12e0464e775512b",
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "63072a08bec384776697e62f7d027a80082d8a83",
    "submitter": {
        "id": 64981,
        "url": "http://patchwork.ozlabs.org/api/1.2/people/64981/?format=api",
        "name": "Bin Meng",
        "email": "bmeng.cn@gmail.com"
    },
    "delegate": {
        "id": 1699,
        "url": "http://patchwork.ozlabs.org/api/1.2/users/1699/?format=api",
        "username": "marex",
        "first_name": "Marek",
        "last_name": "Vasut",
        "email": "marek.vasut@gmail.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1504790001-24715-1-git-send-email-bmeng.cn@gmail.com/mbox/",
    "series": [
        {
            "id": 1998,
            "url": "http://patchwork.ozlabs.org/api/1.2/series/1998/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=1998",
            "date": "2017-09-07T13:13:17",
            "name": "[U-Boot,1/5] dm: usb: Add a new USB controller operation 'get_max_xfer_size'",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/1998/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/811004/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/811004/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "X-Received": "by 10.107.132.204 with SMTP id o73mr3286951ioi.89.1504789738267; \n\tThu, 07 Sep 2017 06:08:58 -0700 (PDT)",
        "From": "Bin Meng <bmeng.cn@gmail.com>",
        "To": "Marek Vasut <marex@denx.de>, Stefan Roese <sr@denx.de>,\n\tMasahiro Yamada <yamada.masahiro@socionext.com>,\n\tSimon Glass <sjg@chromium.org>,\n\tU-Boot Mailing List <u-boot@lists.denx.de>",
        "Date": "Thu,  7 Sep 2017 06:13:17 -0700",
        "Message-Id": "<1504790001-24715-1-git-send-email-bmeng.cn@gmail.com>",
        "X-Mailer": "git-send-email 1.7.9.5",
        "Subject": "[U-Boot] [PATCH 1/5] dm: usb: Add a new USB controller operation\n\t'get_max_xfer_size'",
        "X-BeenThere": "u-boot@lists.denx.de",
        "X-Mailman-Version": "2.1.18",
        "Precedence": "list",
        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
        "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>",
        "List-Archive": "<http://lists.denx.de/pipermail/u-boot/>",
        "List-Post": "<mailto:u-boot@lists.denx.de>",
        "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>",
        "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=subscribe>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "base64",
        "Errors-To": "u-boot-bounces@lists.denx.de",
        "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>"
    },
    "content": "The HCD may have limitation on the maximum bytes to be transferred\nin a USB transfer. USB class driver needs to be aware of this.\n\nSigned-off-by: Bin Meng <bmeng.cn@gmail.com>\n---\n\n drivers/usb/host/usb-uclass.c | 11 +++++++++++\n include/usb.h                 | 22 +++++++++++++++++++++-\n 2 files changed, 32 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c\nindex 0b8a501..bc44fc3 100644\n--- a/drivers/usb/host/usb-uclass.c\n+++ b/drivers/usb/host/usb-uclass.c\n@@ -150,6 +150,17 @@ int usb_update_hub_device(struct usb_device *udev)\n \treturn ops->update_hub_device(bus, udev);\n }\n \n+int usb_get_max_xfer_size(struct usb_device *udev, size_t *size)\n+{\n+\tstruct udevice *bus = udev->controller_dev;\n+\tstruct dm_usb_ops *ops = usb_get_ops(bus);\n+\n+\tif (!ops->get_max_xfer_size)\n+\t\treturn -ENOSYS;\n+\n+\treturn ops->get_max_xfer_size(bus, size);\n+}\n+\n int usb_stop(void)\n {\n \tstruct udevice *bus;\ndiff --git a/include/usb.h b/include/usb.h\nindex fad0401..0ddc082 100644\n--- a/include/usb.h\n+++ b/include/usb.h\n@@ -766,6 +766,14 @@ struct dm_usb_ops {\n \t * representation of this hub can be updated (xHCI)\n \t */\n \tint (*update_hub_device)(struct udevice *bus, struct usb_device *udev);\n+\n+\t/**\n+\t * get_max_xfer_size() - Get HCD's maximum transfer bytes\n+\t *\n+\t * The HCD may have limitation on the maximum bytes to be transferred\n+\t * in a USB transfer. USB class driver needs to be aware of this.\n+\t */\n+\tint (*get_max_xfer_size)(struct udevice *bus, size_t *size);\n };\n \n #define usb_get_ops(dev)\t((struct dm_usb_ops *)(dev)->driver->ops)\n@@ -939,7 +947,7 @@ int usb_new_device(struct usb_device *dev);\n int usb_alloc_device(struct usb_device *dev);\n \n /**\n- * update_hub_device() - Update HCD's internal representation of hub\n+ * usb_update_hub_device() - Update HCD's internal representation of hub\n  *\n  * After a hub descriptor is fetched, notify HCD so that its internal\n  * representation of this hub can be updated.\n@@ -950,6 +958,18 @@ int usb_alloc_device(struct usb_device *dev);\n int usb_update_hub_device(struct usb_device *dev);\n \n /**\n+ * usb_get_max_xfer_size() - Get HCD's maximum transfer bytes\n+ *\n+ * The HCD may have limitation on the maximum bytes to be transferred\n+ * in a USB transfer. USB class driver needs to be aware of this.\n+ *\n+ * @dev:\t\tUSB device\n+ * @size:\t\tmaximum transfer bytes\n+ * @return 0 if OK, -ve on error\n+ */\n+int usb_get_max_xfer_size(struct usb_device *dev, size_t *size);\n+\n+/**\n  * usb_emul_setup_device() - Set up a new USB device emulation\n  *\n  * This is normally called when a new emulation device is bound. It tells\n",
    "prefixes": [
        "U-Boot",
        "1/5"
    ]
}