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Commit 0f1b0356 authored by Shilpa Suresh's avatar Shilpa Suresh Committed by Chetan C R
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usb: gadget: f_qc_rndis: Add RNDIS support using IPA over BAM2BAM 



On some targets RNDIS function uses BAM to BAM transport,
and is handled by the f_qc_rndis driver. This change
adds RNDIS support using IPA over BAM2BAM.
This is snapshot of the qcrndis driver as of kernel
msm-4.9 'commit e4c6a37f8770697d4 ("msm: vidc: avoid OOB
write while accessing memory")'.

Change-Id: I34e9ab6ca25ea515a36ffd54216a09177e5fa746
Signed-off-by: default avatarShilpa Suresh <sbsure@codeaurora.org>
Signed-off-by: default avatarChetan C R <cchinnad@codeaurora.org>
Signed-off-by: default avatarSwetha Chikkaboraiah <schikk@codeaurora.org>
parent ddb64845

drivers/platform/msm/usb_bam.c

+1774 −116

File changed.

Preview size limit exceeded, changes collapsed.

drivers/usb/gadget/Kconfig

+27 −0
Original line number Diff line number Diff line
@@ -190,6 +190,9 @@ config USB_RNDIS 
config USB_F_RNDIS

	tristate



config USB_F_QCRNDIS

	tristate



config USB_F_MASS_STORAGE

	tristate
@@ -247,6 +250,9 @@ config USB_F_MTP 
config USB_F_PTP

	tristate



config USB_F_RMNET_BAM

        tristate



# this first set of drivers all depend on bulk-capable hardware.



config USB_CONFIGFS
@@ -331,6 +337,15 @@ config USB_CONFIGFS_ECM_SUBSET 
	  On hardware that can't implement the full protocol,

	  a simple CDC subset is used, placing fewer demands on USB.



config USB_CONFIGFS_QCRNDIS

	bool "QCRNDIS"

	depends on USB_CONFIGFS

	depends on NET

	depends on RNDIS_IPA

	select USB_U_ETHER

	select USB_RNDIS

	select USB_F_QCRNDIS



config USB_CONFIGFS_RNDIS

	bool "RNDIS"

	depends on USB_CONFIGFS
@@ -348,6 +363,18 @@ config USB_CONFIGFS_RNDIS 
	   XP, you'll need to download drivers from Microsoft's website; a URL

	   is given in comments found in that info file.



config USB_CONFIGFS_RMNET_BAM

	bool "RMNET_BAM"

	depends on USB_CONFIGFS

	select USB_F_RMNET_BAM

	help

	   RmNet interface is a new logical device in QMI framework for data

	   services. RmNet in accordance with QMI architecture uses Data I/O

	   channel for IP data transfer and control I/O channel for QMI

	   messaging (functionality similar to AT commands).

	   RmNet interface is an alternative to standard CDC-ECM and windows

	   RNDIS.



config USB_CONFIGFS_EEM

	bool "Ethernet Emulation Model (EEM)"

	depends on USB_CONFIGFS

drivers/usb/gadget/function/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -69,3 +69,5 @@ usb_f_mtp-y := f_mtp.o 
obj-$(CONFIG_USB_F_MTP)		+= usb_f_mtp.o

usb_f_ptp-y			:= f_ptp.o

obj-$(CONFIG_USB_F_PTP)		+= usb_f_ptp.o

usb_f_qcrndis-y			:= f_qc_rndis.o u_data_ipa.o

obj-$(CONFIG_USB_F_QCRNDIS)	+= usb_f_qcrndis.o

drivers/usb/gadget/function/f_qc_rndis.c

0 → 100644
+1556 −0

File added.

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drivers/usb/gadget/function/rndis.c

+12 −0
Original line number Diff line number Diff line
@@ -1006,6 +1006,18 @@ int rndis_set_param_medium(struct rndis_params *params, u32 medium, u32 speed) 
}

EXPORT_SYMBOL_GPL(rndis_set_param_medium);



u32 rndis_get_dl_max_xfer_size(struct rndis_params *params)

{

	pr_debug("%s:\n", __func__);

	return params->dl_max_xfer_size;

}



u32 rndis_get_ul_max_xfer_size(struct rndis_params *params)

{

	pr_debug("%s:\n", __func__);

	return params->ul_max_xfer_size;

}



void rndis_set_max_pkt_xfer(struct rndis_params *params, u8 max_pkt_per_xfer)

{

	pr_debug("%s:\n", __func__);