105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
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/**
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*
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* Synaptics Register Mapped Interface (RMI4) RMI Driver Header File.
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* Copyright (c) 2007 - 2011, Synaptics Incorporated
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*
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*
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*/
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/*
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* This file is licensed under the GPL2 license.
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*
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*#############################################################################
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* GPL
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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*#############################################################################
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*/
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#include "rmi.h"
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#ifndef _RMI_DRVR_H
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#define _RMI_DRVR_H
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#include <linux/input/rmi_platformdata.h>
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/* RMI4 Protocol Support
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*/
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struct rmi_phys_driver {
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char *name;
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int (*write)(struct rmi_phys_driver *physdrvr, unsigned short address,
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char data);
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int (*read)(struct rmi_phys_driver *physdrvr, unsigned short address,
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char *buffer);
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int (*write_multiple)(struct rmi_phys_driver *physdrvr,
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unsigned short address, char *buffer, int length);
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int (*read_multiple)(struct rmi_phys_driver *physdrvr, unsigned short address,
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char *buffer, int length);
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void (*attention)(struct rmi_phys_driver *physdrvr, int instance);
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bool polling_required;
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int irq;
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/* Standard kernel linked list implementation.
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* Documentation on how to use it can be found at
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* http://isis.poly.edu/kulesh/stuff/src/klist/.
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*/
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struct list_head drivers;
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struct rmi_sensor_driver *sensor;
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struct module *module;
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};
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int rmi_read(struct rmi_sensor_driver *sensor, unsigned short address, char *dest);
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int rmi_write(struct rmi_sensor_driver *sensor, unsigned short address,
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unsigned char data);
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int rmi_read_multiple(struct rmi_sensor_driver *sensor, unsigned short address,
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char *dest, int length);
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int rmi_write_multiple(struct rmi_sensor_driver *sensor, unsigned short address,
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unsigned char *data, int length);
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int rmi_register_sensor(struct rmi_phys_driver *physdrvr,
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struct rmi_sensordata *sensordata);
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int rmi_unregister_sensors(struct rmi_phys_driver *physdrvr);
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/* Utility routine to set bits in a register. */
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int rmi_set_bits(struct rmi_sensor_driver *sensor, unsigned short address, unsigned char bits);
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/* Utility routine to clear bits in a register. */
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int rmi_clear_bits(struct rmi_sensor_driver *sensor, unsigned short address, unsigned char bits);
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/* Utility routine to set the value of a bit field in a register. */
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int rmi_set_bit_field(struct rmi_sensor_driver *sensor, unsigned short address,
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unsigned char field_mask, unsigned char bits);
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/* Set this to 1 to turn on code used in detecting buffer leaks. */
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#define RMI_ALLOC_STATS 1
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#if RMI_ALLOC_STATS
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extern int appallocsrmi;
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extern int rfiallocsrmi;
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extern int fnallocsrmi;
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#define INC_ALLOC_STAT(X) (X##allocsrmi++)
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#define DEC_ALLOC_STAT(X) \
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do { \
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if (X##allocsrmi) X##allocsrmi--; \
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else printk(KERN_DEBUG "Too many " #X " frees\n"); \
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} while (0)
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#define CHECK_ALLOC_STAT(X) \
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do { \
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if (X##allocsrmi) \
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printk(KERN_DEBUG "Left over " #X " buffers: %d\n", \
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X##allocsrmi); \
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} while (0)
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#else
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#define INC_ALLOC_STAT(X) do { } while (0)
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#define DEC_ALLOC_STAT(X) do { } while (0)
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#define CHECK_ALLOC_STAT(X) do { } while (0)
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#endif
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#endif
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