Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e5249a30 authored by Stephen Boyd's avatar Stephen Boyd
Browse files

char: Add DIAG driver 



Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
parent 9d8d63a5

arch/arm/mach-msm/include/mach/diag_bridge.h

0 → 100644
+55 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2011, 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_USB_DIAG_BRIDGE_H__

#define __LINUX_USB_DIAG_BRIDGE_H__



struct diag_bridge_ops {

	void *ctxt;

	void (*read_complete_cb)(void *ctxt, char *buf,

			int buf_size, int actual);

	void (*write_complete_cb)(void *ctxt, char *buf,

			int buf_size, int actual);

	int (*suspend)(void *ctxt);

	void (*resume)(void *ctxt);

};



#if defined(CONFIG_USB_QCOM_DIAG_BRIDGE) \

	|| defined(CONFIG_USB_QCOM_DIAG_BRIDGE_MODULE)



extern int diag_bridge_read(char *data, int size);

extern int diag_bridge_write(char *data, int size);

extern int diag_bridge_open(struct diag_bridge_ops *ops);

extern void diag_bridge_close(void);



#else



static int __maybe_unused diag_bridge_read(char *data, int size)

{

	return -ENODEV;

}



static int __maybe_unused diag_bridge_write(char *data, int size)

{

	return -ENODEV;

}



static int __maybe_unused diag_bridge_open(struct diag_bridge_ops *ops)

{

	return -ENODEV;

}



static void __maybe_unused diag_bridge_close(void) { }



#endif



#endif

arch/arm/mach-msm/include/mach/usbdiag.h

0 → 100644
+58 −0
Original line number Diff line number Diff line 
/* include/asm-arm/arch-msm/usbdiag.h

 *

 * Copyright (c) 2008-2010, The Linux Foundation. All rights reserved.

 *

 * All source code in this file is licensed under the following license except

 * where indicated.

 *

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

 * under the terms of the GNU General Public License 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.

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, you can find it at http://www.fsf.org

 */



#ifndef _DRIVERS_USB_DIAG_H_

#define _DRIVERS_USB_DIAG_H_



#define DIAG_LEGACY		"diag"

#define DIAG_MDM		"diag_mdm"



#define USB_DIAG_CONNECT	0

#define USB_DIAG_DISCONNECT	1

#define USB_DIAG_WRITE_DONE	2

#define USB_DIAG_READ_DONE	3



struct diag_request {

	char *buf;

	int length;

	int actual;

	int status;

	void *context;

};



struct usb_diag_ch {

	const char *name;

	struct list_head list;

	void (*notify)(void *priv, unsigned event, struct diag_request *d_req);

	void *priv;

	void *priv_usb;

};



struct usb_diag_ch *usb_diag_open(const char *name, void *priv,

		void (*notify)(void *, unsigned, struct diag_request *));

void usb_diag_close(struct usb_diag_ch *ch);

int usb_diag_alloc_req(struct usb_diag_ch *ch, int n_write, int n_read);

void usb_diag_free_req(struct usb_diag_ch *ch);

int usb_diag_read(struct usb_diag_ch *ch, struct diag_request *d_req);

int usb_diag_write(struct usb_diag_ch *ch, struct diag_request *d_req);



int diag_read_from_cb(unsigned char * , int);



#endif /* _DRIVERS_USB_DIAG_H_ */

drivers/char/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -64,6 +64,8 @@ config SGI_MBCS 


source "drivers/tty/serial/Kconfig"



source "drivers/char/diag/Kconfig"



config TTY_PRINTK

	bool "TTY driver to output user messages via printk"

	depends on EXPERT && TTY

drivers/char/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -65,3 +65,4 @@ js-rtc-y = rtc.o 
obj-$(CONFIG_TILE_SROM)		+= tile-srom.o

obj-$(CONFIG_MSM_ROTATOR)	+= msm_rotator.o

obj-$(CONFIG_MMC_GENERIC_CSDIO)	+= csdio.o

obj-$(CONFIG_DIAG_CHAR)		+= diag/

drivers/char/diag/Kconfig

0 → 100644
+41 −0
Original line number Diff line number Diff line 
menu "Diag Support"



config DIAG_CHAR

	tristate "char driver interface and diag forwarding to/from modem"

	default m

	depends on USB_G_ANDROID || USB_FUNCTION_DIAG || USB_QCOM_MAEMO

	depends on ARCH_MSM

	help

	 Char driver interface for diag user space and diag-forwarding to modem ARM and back.

	 This enables diagchar for maemo usb gadget or android usb gadget based on config selected.

endmenu



menu "DIAG traffic over USB"



config DIAG_OVER_USB

	bool "Enable DIAG traffic to go over USB"

        depends on ARCH_MSM

	default y

	help

	 This feature helps segregate code required for DIAG traffic to go over USB.

endmenu



menu "SDIO support for DIAG"



config DIAG_SDIO_PIPE

	depends on MSM_SDIO_AL

	default y

	bool "Enable 9K DIAG traffic over SDIO"

	help

	 SDIO Transport Layer for DIAG Router

endmenu



menu "HSIC support for DIAG"



config DIAG_BRIDGE_CODE

	depends on USB_QCOM_DIAG_BRIDGE

	default y

	bool "Enable QSC/9K DIAG traffic over SMUX/HSIC"

	help

	 SMUX/HSIC Transport Layer for DIAG Router

endmenu