From: Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
balbi-l0cyMroinI0@public.gmane.org,
peter.chen-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
robh+d-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pawel.moll-5wv7dgnIgG8@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
macpaul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
rogerq-l0cyMroinI0@public.gmane.org,
Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Subject: [PATCH v7 22/23] usb: gadget: serial: allocate and init otg descriptor by otg capabilities
Date: Thu, 9 Jul 2015 15:18:59 +0800 [thread overview]
Message-ID: <1436426340-18477-23-git-send-email-jun.li@freescale.com> (raw)
In-Reply-To: <1436426340-18477-1-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Allocate and initialize usb otg descriptor according to gadget otg
capabilities, add it for each usb configurations. If otg capability
is not defined, keep its original otg descriptor unchanged.
Signed-off-by: Li Jun <jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
---
drivers/usb/gadget/legacy/serial.c | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/drivers/usb/gadget/legacy/serial.c b/drivers/usb/gadget/legacy/serial.c
index 8b7528f..9836d16 100644
--- a/drivers/usb/gadget/legacy/serial.c
+++ b/drivers/usb/gadget/legacy/serial.c
@@ -79,20 +79,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/*-------------------------------------------------------------------------*/
@@ -191,6 +178,18 @@ static int gs_bind(struct usb_composite_dev *cdev)
serial_config_driver.iConfiguration = status;
if (gadget_is_otg(cdev->gadget)) {
+ if (!otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc) {
+ status = -ENOMEM;
+ goto fail;
+ }
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
serial_config_driver.descriptors = otg_desc;
serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
@@ -208,13 +207,15 @@ static int gs_bind(struct usb_composite_dev *cdev)
"gser");
}
if (status < 0)
- goto fail;
+ goto fail1;
usb_composite_overwrite_options(cdev, &coverwrite);
INFO(cdev, "%s\n", GS_VERSION_NAME);
return 0;
-
+fail1:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail:
return status;
}
@@ -227,6 +228,10 @@ static int gs_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_serial[i]);
usb_put_function_instance(fi_serial[i]);
}
+
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
--
1.9.1
--
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next prev parent reply other threads:[~2015-07-09 7:18 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-09 7:18 [PATCH v7 00/23] usb gadget update for OTG 2.0 Li Jun
[not found] ` <1436426340-18477-1-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 7:18 ` [PATCH v7 01/23] usb: add usb_otg20_descriptor for OTG 2.0 and above Li Jun
2015-07-09 7:18 ` [PATCH v7 02/23] usb: add USB_OTG_ADP definition Li Jun
2015-07-09 7:18 ` [PATCH v7 03/23] usb: otg: add usb_otg_caps structure for otg capabilities Li Jun
2015-07-09 7:18 ` [PATCH v7 04/23] usb: add usb_otg_caps to usb_gadget structure Li Jun
2015-07-09 7:18 ` [PATCH v7 05/23] usb: gadget: composite: add USB_DT_OTG request handling Li Jun
2015-07-09 7:18 ` [PATCH v7 06/23] doc: dt-binding: usb: add otg related properties Li Jun
2015-07-09 7:18 ` [PATCH v7 07/23] usb: common: add API to update usb otg capabilities by device tree Li Jun
[not found] ` <1436426340-18477-8-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 8:38 ` Roger Quadros
2015-07-09 7:18 ` [PATCH v7 08/23] usb: chipidea: set usb otg capabilities Li Jun
[not found] ` <1436426340-18477-9-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 8:47 ` Roger Quadros
2015-07-09 8:57 ` Roger Quadros
[not found] ` <559E3783.9010908-l0cyMroinI0@public.gmane.org>
2015-07-09 13:22 ` Li Jun
2015-07-13 1:03 ` Peter Chen
2015-07-22 15:19 ` Felipe Balbi
2015-07-09 7:18 ` [PATCH v7 09/23] usb: chipidea: update ci_otg_is_fsm_mode conditions Li Jun
[not found] ` <1436426340-18477-10-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-13 0:53 ` Peter Chen
2015-07-09 7:18 ` [PATCH v7 10/23] usb: gadget: add usb otg descriptor allocate and init interface Li Jun
2015-07-09 7:18 ` [PATCH v7 11/23] usb: gadget: configfs: allocate and init otg descriptor by otg capabilities Li Jun
2015-07-09 7:18 ` [PATCH v7 12/23] usb: gadget: ether: " Li Jun
2015-07-09 7:18 ` [PATCH v7 13/23] usb: gadget: acm_ms: " Li Jun
2015-07-09 7:18 ` [PATCH v7 14/23] usb: gadget: audio: " Li Jun
2015-07-09 7:18 ` [PATCH v7 15/23] usb: gadget: cdc2: " Li Jun
2015-07-09 7:18 ` [PATCH v7 16/23] usb: gadget: g_ffs: " Li Jun
2015-07-09 7:18 ` [PATCH v7 17/23] usb: gadget: hid: " Li Jun
2015-07-09 7:18 ` [PATCH v7 18/23] usb: gadget: mass_storage: " Li Jun
2015-07-09 7:18 ` [PATCH v7 19/23] usb: gadget: multi: " Li Jun
2015-07-09 7:18 ` [PATCH v7 20/23] usb: gadget: ncm: " Li Jun
2015-07-09 7:18 ` [PATCH v7 21/23] usb: gadget: printer: " Li Jun
[not found] ` <1436426340-18477-22-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 8:41 ` Roger Quadros
2015-07-09 7:18 ` Li Jun [this message]
[not found] ` <1436426340-18477-23-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 8:42 ` [PATCH v7 22/23] usb: gadget: serial: " Roger Quadros
2015-07-09 7:19 ` [PATCH v7 23/23] usb: gadget: zero: " Li Jun
[not found] ` <1436426340-18477-24-git-send-email-jun.li-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-07-09 8:46 ` Roger Quadros
2015-07-13 23:43 ` [PATCH v7 00/23] usb gadget update for OTG 2.0 Li Jun
2015-07-22 15:13 ` Felipe Balbi
[not found] ` <20150722151308.GE10467-HgARHv6XitJaoMGHk7MhZQC/G2K4zDHf@public.gmane.org>
2015-07-22 23:57 ` Li Jun
2015-07-23 2:45 ` Macpaul Lin
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