/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2000-2002 Vojtech Pavlik <[email protected]> * Copyright (c) 2001-2002, 2007 Johann Deneux <[email protected]> * * USB/RS232 I-Force joysticks and wheels. */ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/input.h> #include <linux/module.h> #include <linux/spinlock.h> #include <linux/circ_buf.h> #include <linux/mutex.h> /* This module provides arbitrary resource management routines. * I use it to manage the device's memory. * Despite the name of this module, I am *not* going to access the ioports. */ #include <linux/ioport.h> #define IFORCE_MAX_LENGTH … #define IFORCE_EFFECTS_MAX … /* Each force feedback effect is made of one core effect, which can be * associated to at most to effect modifiers */ #define FF_MOD1_IS_USED … #define FF_MOD2_IS_USED … #define FF_CORE_IS_USED … #define FF_CORE_IS_PLAYED … #define FF_CORE_SHOULD_PLAY … #define FF_CORE_UPDATE … #define FF_MODCORE_CNT … struct iforce_core_effect { … }; #define FF_CMD_EFFECT … #define FF_CMD_ENVELOPE … #define FF_CMD_MAGNITUDE … #define FF_CMD_PERIOD … #define FF_CMD_CONDITION … #define FF_CMD_AUTOCENTER … #define FF_CMD_PLAY … #define FF_CMD_ENABLE … #define FF_CMD_GAIN … #define FF_CMD_QUERY … /* Buffer for async write */ #define XMIT_SIZE … #define XMIT_INC(var, n) … /* iforce::xmit_flags */ #define IFORCE_XMIT_RUNNING … #define IFORCE_XMIT_AGAIN … struct iforce_device { … }; struct iforce; struct iforce_xport_ops { … }; struct iforce { … }; /* Get hi and low bytes of a 16-bits int */ #define HI(a) … #define LO(a) … /* For many parameters, it seems that 0x80 is a special value that should * be avoided. Instead, we replace this value by 0x7f */ #define HIFIX80(a) … /* Encode a time value */ #define TIME_SCALE(a) … static inline int iforce_get_id_packet(struct iforce *iforce, u8 id, u8 *response_data, size_t *response_len) { … } static inline void iforce_clear_xmit_and_wake(struct iforce *iforce) { … } /* Public functions */ /* iforce-main.c */ int iforce_init_device(struct device *parent, u16 bustype, struct iforce *iforce); /* iforce-packets.c */ int iforce_control_playback(struct iforce*, u16 id, unsigned int); void iforce_process_packet(struct iforce *iforce, u8 packet_id, u8 *data, size_t len); int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data); void iforce_dump_packet(struct iforce *iforce, char *msg, u16 cmd, unsigned char *data); /* iforce-ff.c */ int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *); int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *); int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *); /* Public variables */ extern struct serio_driver iforce_serio_drv; extern struct usb_driver iforce_usb_driver;
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