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fastboot: Fix wMaxPacketSize for High-Speed IN endpoint

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wMaxPacketSize for IN endpoing in High-Speed must be 512 and not 64.
While fixing that we do some clean ups like

- use cpu_to_le16(decimal_length) instead of hexadecimal length.
- No need to initialize bInterval to 0. Static variables are 0 initialized.
- Move descriptor setting from fastboot_add to to fastboot_bind.
- check for dual speed configuration before setting the high speed descriptors.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <srae@broadcom.com>
Tested-by: Steve Rae <srae@broadcom.com> [Test HW: bcm235xx board]
This commit is contained in:
Roger Quadros 2016-04-12 15:51:48 +03:00 committed by Marek Vasut
parent f3a87f5b79
commit 718156ad0a
1 changed files with 27 additions and 9 deletions
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36
drivers/usb/gadget/f_fastboot.c
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@ -64,8 +64,7 @@ static struct usb_endpoint_descriptor fs_ep_in = {
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = TX_ENDPOINT_MAXIMUM_PACKET_SIZE,
.bInterval = 0x00,
.wMaxPacketSize = cpu_to_le16(64),
};
static struct usb_endpoint_descriptor fs_ep_out = {
@ -73,8 +72,15 @@ static struct usb_endpoint_descriptor fs_ep_out = {
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1,
.bInterval = 0x00,
.wMaxPacketSize = cpu_to_le16(64),
};
static struct usb_endpoint_descriptor hs_ep_in = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_endpoint_descriptor hs_ep_out = {
@ -82,8 +88,7 @@ static struct usb_endpoint_descriptor hs_ep_out = {
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0,
.bInterval = 0x00,
.wMaxPacketSize = cpu_to_le16(512),
};
static struct usb_interface_descriptor interface_desc = {
@ -97,9 +102,15 @@ static struct usb_interface_descriptor interface_desc = {
.bInterfaceProtocol = FASTBOOT_INTERFACE_PROTOCOL,
};
static struct usb_descriptor_header *fb_runtime_descs[] = {
static struct usb_descriptor_header *fb_fs_function[] = {
(struct usb_descriptor_header *)&interface_desc,
(struct usb_descriptor_header *)&fs_ep_in,
(struct usb_descriptor_header *)&fs_ep_out,
};
static struct usb_descriptor_header *fb_hs_function[] = {
(struct usb_descriptor_header *)&interface_desc,
(struct usb_descriptor_header *)&hs_ep_in,
(struct usb_descriptor_header *)&hs_ep_out,
NULL,
};
@ -177,7 +188,15 @@ static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
return -ENODEV;
f_fb->out_ep->driver_data = c->cdev;
hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
f->descriptors = fb_fs_function;
if (gadget_is_dualspeed(gadget)) {
/* Assume endpoint addresses are the same for both speeds */
hs_ep_in.bEndpointAddress = fs_ep_in.bEndpointAddress;
hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
/* copy HS descriptors */
f->hs_descriptors = fb_hs_function;
}
s = getenv("serial#");
if (s)
@ -302,7 +321,6 @@ static int fastboot_add(struct usb_configuration *c)
}
f_fb->usb_function.name = "f_fastboot";
f_fb->usb_function.hs_descriptors = fb_runtime_descs;
f_fb->usb_function.bind = fastboot_bind;
f_fb->usb_function.unbind = fastboot_unbind;
f_fb->usb_function.set_alt = fastboot_set_alt;