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Commit 393dbf98 authored by Sarannya S's avatar Sarannya S
Browse files

kernel: driver: Added support msm_smd_pkt driver 



msm_smd_pkt driver provides data communication to
remote peripherals such as Modem over RPMSG.

Change-Id: I8d05786214620e11fb6b372b9b28ba70d5fecc4e
Signed-off-by: default avatarSantosh Kumar M <santhoshm@codeaurora.org>
Signed-off-by: default avatarSivasri Kumar Vanka <sivasri@codeaurora.org>
Signed-off-by: default avatarSarannya S <sarannya@codeaurora.org>
parent 6897f46d

drivers/char/Kconfig

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@@ -538,6 +538,27 @@ config DEVPORT 


source "drivers/s390/char/Kconfig"



config MSM_SMD_PKT

	bool "Enable device interface for some SMD packet ports"

	default n

	depends on RPMSG_QCOM_SMD

	help

	 smd_pkt driver provides the interface for the userspace clients

	 to communicate over smd via device nodes. This enable the

	 usersapce clients to read and write to some smd packets channel

	 for MSM chipset.



config TILE_SROM

	tristate "Character-device access via hypervisor to the Tilera SPI ROM"

	depends on TILE

	default y

	help

	  This device provides character-level read-write access

	  to the SROM, typically via the "0", "1", and "2" devices

	  in /dev/srom/.  The Tilera hypervisor makes the flash

	  device appear much like a simple EEPROM, and knows

	  how to partition a single ROM for multiple purposes.



source "drivers/char/xillybus/Kconfig"

source "drivers/char/diag/Kconfig"

drivers/char/Makefile

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@@ -14,6 +14,8 @@ obj-$(CONFIG_MSPEC) += mspec.o 
obj-$(CONFIG_UV_MMTIMER)	+= uv_mmtimer.o

obj-$(CONFIG_IBM_BSR)		+= bsr.o

obj-$(CONFIG_SGI_MBCS)		+= mbcs.o

obj-$(CONFIG_BFIN_OTP)		+= bfin-otp.o

obj-$(CONFIG_MSM_SMD_PKT)       += msm_smd_pkt.o



obj-$(CONFIG_PRINTER)		+= lp.o

drivers/char/msm_smd_pkt.c

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+893 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/msm_smd_pkt.h

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/* SPDX-License-Identifier: GPL-2.0

 * Copyright (c) 2010,2017,2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 */

#ifndef __LINUX_MSM_SMD_PKT_H

#define __LINUX_MSM_SMD_PKT_H



#include <linux/ioctl.h>



#define SMD_PKT_IOCTL_MAGIC (0xC2)



#define SMD_PKT_IOCTL_BLOCKING_WRITE \

	_IOR(SMD_PKT_IOCTL_MAGIC, 0, unsigned int)



#endif /* __LINUX_MSM_SMD_PKT_H */