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usb: gadget: MBIM function driver for QCOM chipsets

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This driver implements Mobile Broadband Interface Model protocol.
Control messages are transferred through QBI module
running in user space and communicating with mbim
using file operations interface android_mbim.
Data is transferred on SPS, Bam-to-Bam.

Change-Id: Ifc4b3f7e21b1a0dac377af272f9ae922ec9c7e2e
Signed-off-by: Anna Perel <aperel@codeaurora.org>
This commit is contained in:
Anna Perel
2012-04-09 16:44:46 +03:00
committed by Stephen Boyd
parent d20a151d2a
commit cce917a9ac
4 changed files with 2181 additions and 0 deletions
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17
include/linux/usb/cdc.h
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@@ -53,6 +53,7 @@
#define USB_CDC_DMM_TYPE 0x14
#define USB_CDC_OBEX_TYPE 0x15
#define USB_CDC_NCM_TYPE 0x1a
#define USB_CDC_MBB_TYPE 0x1b /* mbb_desc */
/* "Header Functional Descriptor" from CDC spec 5.2.3.1 */
struct usb_cdc_header_desc {
@@ -187,6 +188,21 @@ struct usb_cdc_ncm_desc {
__le16 bcdNcmVersion;
__u8 bmNetworkCapabilities;
} __attribute__ ((packed));
/* "MBIM Functional Descriptor" */
struct usb_cdc_mbb_desc {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubType;
__le16 bcdMbbVersion;
__le16 wMaxControlMessage;
__u8 bNumberFilters;
__u8 bMaxFilterSize;
__le16 wMaxSegmentSize;
__u8 bmNetworkCapabilities;
} __packed;
/*-------------------------------------------------------------------------*/
/*
@@ -201,6 +217,7 @@ struct usb_cdc_ncm_desc {
#define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
#define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
#define USB_CDC_RESET_FUNCTION 0x05
#define USB_CDC_REQ_SET_LINE_CODING 0x20
#define USB_CDC_REQ_GET_LINE_CODING 0x21
#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22