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usb: f_uac1: adds support for SS and SSP

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Patch adds support of SS and SSP speed.
Tested with rockchip rk3399 dwc3

Signed-off-by: Perr Zhang <perr@usb7.net>
Link: https://lore.kernel.org/r/20231213112106.605260-1-strongbox8@zoho.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Perr Zhang 2023-12-13 19:21:06 +08:00 committed by Greg Kroah-Hartman
parent 36d586c057
commit b8fb6db6cb
1 changed files with 75 additions and 2 deletions
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77
drivers/usb/gadget/function/f_uac1.c
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@ -292,6 +292,77 @@ static struct usb_descriptor_header *f_audio_desc[] = {
NULL,
};
/* Standard ISO OUT Endpoint Descriptor */
static struct usb_endpoint_descriptor ss_as_out_ep_desc = {
.bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_SYNC_ADAPTIVE
| USB_ENDPOINT_XFER_ISOC,
.wMaxPacketSize = cpu_to_le16(UAC1_OUT_EP_MAX_PACKET_SIZE),
.bInterval = 4,
};
static struct usb_ss_ep_comp_descriptor ss_as_out_ep_desc_comp = {
.bLength = sizeof(ss_as_out_ep_desc_comp),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
.bMaxBurst = 0,
.bmAttributes = 0,
/* wBytesPerInterval = DYNAMIC */
};
/* Standard ISO OUT Endpoint Descriptor */
static struct usb_endpoint_descriptor ss_as_in_ep_desc = {
.bLength = USB_DT_ENDPOINT_AUDIO_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_SYNC_ASYNC
| USB_ENDPOINT_XFER_ISOC,
.wMaxPacketSize = cpu_to_le16(UAC1_OUT_EP_MAX_PACKET_SIZE),
.bInterval = 4,
};
static struct usb_ss_ep_comp_descriptor ss_as_in_ep_desc_comp = {
.bLength = sizeof(ss_as_in_ep_desc_comp),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
.bMaxBurst = 0,
.bmAttributes = 0,
/* wBytesPerInterval = DYNAMIC */
};
static struct usb_descriptor_header *f_audio_ss_desc[] = {
(struct usb_descriptor_header *)&ac_interface_desc,
(struct usb_descriptor_header *)&ac_header_desc,
(struct usb_descriptor_header *)&usb_out_it_desc,
(struct usb_descriptor_header *)&io_out_ot_desc,
(struct usb_descriptor_header *)&io_in_it_desc,
(struct usb_descriptor_header *)&usb_in_ot_desc,
(struct usb_descriptor_header *)&as_out_interface_alt_0_desc,
(struct usb_descriptor_header *)&as_out_interface_alt_1_desc,
(struct usb_descriptor_header *)&as_out_header_desc,
(struct usb_descriptor_header *)&as_out_type_i_desc,
//(struct usb_descriptor_header *)&as_out_ep_desc,
(struct usb_descriptor_header *)&ss_as_out_ep_desc,
(struct usb_descriptor_header *)&ss_as_out_ep_desc_comp,
(struct usb_descriptor_header *)&as_iso_out_desc,
(struct usb_descriptor_header *)&as_in_interface_alt_0_desc,
(struct usb_descriptor_header *)&as_in_interface_alt_1_desc,
(struct usb_descriptor_header *)&as_in_header_desc,
(struct usb_descriptor_header *)&as_in_type_i_desc,
//(struct usb_descriptor_header *)&as_in_ep_desc,
(struct usb_descriptor_header *)&ss_as_in_ep_desc,
(struct usb_descriptor_header *)&ss_as_in_ep_desc_comp,
(struct usb_descriptor_header *)&as_iso_in_desc,
NULL,
};
enum {
STR_AC_IF,
STR_USB_OUT_IT,
@ -1352,6 +1423,7 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
ep = usb_ep_autoconfig(cdev->gadget, &as_out_ep_desc);
if (!ep)
goto err_free_fu;
ss_as_out_ep_desc.bEndpointAddress = as_out_ep_desc.bEndpointAddress;
audio->out_ep = ep;
audio->out_ep->desc = &as_out_ep_desc;
}
@ -1360,6 +1432,7 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
ep = usb_ep_autoconfig(cdev->gadget, &as_in_ep_desc);
if (!ep)
goto err_free_fu;
ss_as_in_ep_desc.bEndpointAddress = as_in_ep_desc.bEndpointAddress;
audio->in_ep = ep;
audio->in_ep->desc = &as_in_ep_desc;
}
@ -1367,8 +1440,8 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
setup_descriptor(audio_opts);
/* copy descriptors, and track endpoint copies */
status = usb_assign_descriptors(f, f_audio_desc, f_audio_desc, NULL,
NULL);
status = usb_assign_descriptors(f, f_audio_desc, f_audio_desc, f_audio_ss_desc,
f_audio_ss_desc);
if (status)
goto err_free_fu;