soc: qcom: Add Shared Memory Driver

	  modes. It interface with various system drivers to put the cores in

	  low power modes.

config QCOM_SMD

	tristate "Qualcomm Shared Memory Driver (SMD)"

	depends on QCOM_SMEM

	help

	  Say y here to enable support for the Qualcomm Shared Memory Driver

	  providing communication channels to remote processors in Qualcomm

	  platforms.

config QCOM_SMEM

	tristate "Qualcomm Shared Memory Manager (SMEM)"

	depends on ARCH_QCOM

obj-$(CONFIG_QCOM_GSBI)	+=	qcom_gsbi.o

obj-$(CONFIG_QCOM_PM)	+=	spm.o

obj-$(CONFIG_QCOM_SMD) +=	smd.o

obj-$(CONFIG_QCOM_SMEM) +=	smem.o

#ifndef __QCOM_SMD_H__

#define __QCOM_SMD_H__

#include <linux/device.h>

#include <linux/mod_devicetable.h>

struct qcom_smd;

struct qcom_smd_channel;

struct qcom_smd_lookup;

/**

 * struct qcom_smd_device - smd device struct

 * @dev:	the device struct

 * @channel:	handle to the smd channel for this device

 */

struct qcom_smd_device {

	struct device dev;

	struct qcom_smd_channel *channel;

};

/**

 * struct qcom_smd_driver - smd driver struct

 * @driver:	underlying device driver

 * @probe:	invoked when the smd channel is found

 * @remove:	invoked when the smd channel is closed

 * @callback:	invoked when an inbound message is received on the channel,

 *		should return 0 on success or -EBUSY if the data cannot be

 *		consumed at this time

 */

struct qcom_smd_driver {

	struct device_driver driver;

	int (*probe)(struct qcom_smd_device *dev);

	void (*remove)(struct qcom_smd_device *dev);

	int (*callback)(struct qcom_smd_device *, const void *, size_t);

};

int qcom_smd_driver_register(struct qcom_smd_driver *drv);

void qcom_smd_driver_unregister(struct qcom_smd_driver *drv);

#define module_qcom_smd_driver(__smd_driver) \

	module_driver(__smd_driver, qcom_smd_driver_register, \

		      qcom_smd_driver_unregister)

int qcom_smd_send(struct qcom_smd_channel *channel, const void *data, int len);

#endif