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Commit a6bdea09 authored by Ajay Agarwal's avatar Ajay Agarwal
Browse files

usb: misc: mdm_data_bridge: Clean the driver 



Remove support for Interrupt IN data endpoint. Remove appendix of
ZLP after each OUT URB. Add support for required PIDs.
While at it, clean/refactor other parts of the driver.

Change-Id: I307fe2f70b51655cae9b7a529838b94c59d2ec22
Signed-off-by: default avatarAjay Agarwal <ajaya@codeaurora.org>
parent 84985b47

drivers/usb/misc/mdm_data_bridge.c

+213 −427

File changed.

Preview size limit exceeded, changes collapsed.

include/linux/usb/usb_bridge.h

+21 −3
Original line number Diff line number Diff line
@@ -17,12 +17,30 @@ 
#include <linux/netdevice.h>

#include <linux/usb.h>



#define MAX_BRIDGE_DEVICES 4

#define BRIDGE_NAME_MAX_LEN 20

#define MAX_INST_NAME_LEN 40



enum bridge_id {

	USB_BRIDGE_QDSS,

	USB_BRIDGE_DPL,

	MAX_BRIDGE_DEVICES,

};



static int bridge_name_to_id(const char *name)

{

	if (!name)

		goto fail;



	if (!strncasecmp(name, "qdss", MAX_INST_NAME_LEN))

		return USB_BRIDGE_QDSS;

	if (!strncasecmp(name, "dpl", MAX_INST_NAME_LEN))

		return USB_BRIDGE_DPL;



fail:

	return -EINVAL;

}



struct bridge_ops {

	int (*send_pkt)(void *, void *, size_t actual);

	void (*send_cbits)(void *, unsigned int);



	/* flow control */

	void (*unthrottle_tx)(void *);