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freebsd-skq/sys/dev/usb/input/wsp.c
Pedro F. Giffuni 207332450e dev/usb: minor spelling fixes in comments. 
No functional change.

Reviewed by:	hselasky
2016-05-02 17:44:03 +00:00

1399 lines
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/*-
* Copyright (c) 2012 Huang Wen Hui
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/selinfo.h>
#include <sys/poll.h>
#include <sys/sysctl.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbhid.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR wsp_debug
#include <dev/usb/usb_debug.h>
#include <sys/mouse.h>
#define WSP_DRIVER_NAME "wsp"
#define WSP_BUFFER_MAX 1024
#define WSP_CLAMP(x,low,high) do { \
if ((x) < (low)) \
(x) = (low); \
else if ((x) > (high)) \
(x) = (high); \
} while (0)
/* Tunables */
static SYSCTL_NODE(_hw_usb, OID_AUTO, wsp, CTLFLAG_RW, 0, "USB wsp");
#ifdef USB_DEBUG
enum wsp_log_level {
WSP_LLEVEL_DISABLED = 0,
WSP_LLEVEL_ERROR,
WSP_LLEVEL_DEBUG, /* for troubleshooting */
WSP_LLEVEL_INFO, /* for diagnostics */
};
static int wsp_debug = WSP_LLEVEL_ERROR;/* the default is to only log errors */
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, debug, CTLFLAG_RWTUN,
&wsp_debug, WSP_LLEVEL_ERROR, "WSP debug level");
#endif /* USB_DEBUG */
static struct wsp_tuning {
int scale_factor;
int z_factor;
int pressure_touch_threshold;
int pressure_untouch_threshold;
int pressure_tap_threshold;
int scr_hor_threshold;
}
wsp_tuning =
{
.scale_factor = 12,
.z_factor = 5,
.pressure_touch_threshold = 50,
.pressure_untouch_threshold = 10,
.pressure_tap_threshold = 120,
.scr_hor_threshold = 20,
};
static void
wsp_runing_rangecheck(struct wsp_tuning *ptun)
{
WSP_CLAMP(ptun->scale_factor, 1, 63);
WSP_CLAMP(ptun->z_factor, 1, 63);
WSP_CLAMP(ptun->pressure_touch_threshold, 1, 255);
WSP_CLAMP(ptun->pressure_untouch_threshold, 1, 255);
WSP_CLAMP(ptun->pressure_tap_threshold, 1, 255);
WSP_CLAMP(ptun->scr_hor_threshold, 1, 255);
}
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, scale_factor, CTLFLAG_RWTUN,
&wsp_tuning.scale_factor, 0, "movement scale factor");
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, z_factor, CTLFLAG_RWTUN,
&wsp_tuning.z_factor, 0, "Z-axis scale factor");
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_touch_threshold, CTLFLAG_RWTUN,
&wsp_tuning.pressure_touch_threshold, 0, "touch pressure threshold");
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_untouch_threshold, CTLFLAG_RWTUN,
&wsp_tuning.pressure_untouch_threshold, 0, "untouch pressure threshold");
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, pressure_tap_threshold, CTLFLAG_RWTUN,
&wsp_tuning.pressure_tap_threshold, 0, "tap pressure threshold");
SYSCTL_INT(_hw_usb_wsp, OID_AUTO, scr_hor_threshold, CTLFLAG_RWTUN,
&wsp_tuning.scr_hor_threshold, 0, "horizontal scrolling threshold");
/*
* Some tables, structures, definitions and constant values for the
* touchpad protocol has been copied from Linux's
* "drivers/input/mouse/bcm5974.c" which has the following copyright
* holders under GPLv2. All device specific code in this driver has
* been written from scratch. The decoding algorithm is based on
* output from FreeBSD's usbdump.
*
* Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se)
* Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com)
* Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net)
* Copyright (C) 2005 Stelian Pop (stelian@popies.net)
* Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
* Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
* Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
* Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
*/
/* button data structure */
struct bt_data {
uint8_t unknown1; /* constant */
uint8_t button; /* left button */
uint8_t rel_x; /* relative x coordinate */
uint8_t rel_y; /* relative y coordinate */
} __packed;
/* trackpad header types */
enum tp_type {
TYPE1, /* plain trackpad */
TYPE2, /* button integrated in trackpad */
TYPE3, /* additional header fields since June 2013 */
TYPE4 /* additional header field for pressure data */
};
/* trackpad finger data offsets, le16-aligned */
#define FINGER_TYPE1 (13 * 2)
#define FINGER_TYPE2 (15 * 2)
#define FINGER_TYPE3 (19 * 2)
#define FINGER_TYPE4 (23 * 2)
/* trackpad button data offsets */
#define BUTTON_TYPE2 15
#define BUTTON_TYPE3 23
#define BUTTON_TYPE4 31
/* list of device capability bits */
#define HAS_INTEGRATED_BUTTON 1
/* trackpad finger data block size */
#define FSIZE_TYPE1 (14 * 2)
#define FSIZE_TYPE2 (14 * 2)
#define FSIZE_TYPE3 (14 * 2)
#define FSIZE_TYPE4 (15 * 2)
/* trackpad finger header - little endian */
struct tp_header {
uint8_t flag;
uint8_t sn0;
uint16_t wFixed0;
uint32_t dwSn1;
uint32_t dwFixed1;
uint16_t wLength;
uint8_t nfinger;
uint8_t ibt;
int16_t wUnknown[6];
uint8_t q1;
uint8_t q2;
} __packed;
/* trackpad finger structure - little endian */
struct tp_finger {
int16_t origin; /* zero when switching track finger */
int16_t abs_x; /* absolute x coodinate */
int16_t abs_y; /* absolute y coodinate */
int16_t rel_x; /* relative x coodinate */
int16_t rel_y; /* relative y coodinate */
int16_t tool_major; /* tool area, major axis */
int16_t tool_minor; /* tool area, minor axis */
int16_t orientation; /* 16384 when point, else 15 bit angle */
int16_t touch_major; /* touch area, major axis */
int16_t touch_minor; /* touch area, minor axis */
int16_t unused[2]; /* zeros */
int16_t pressure; /* pressure on forcetouch touchpad */
int16_t multi; /* one finger: varies, more fingers:
* constant */
} __packed;
/* trackpad finger data size, empirically at least ten fingers */
#define MAX_FINGERS 16
#define SIZEOF_FINGER sizeof(struct tp_finger)
#define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER)
#if (WSP_BUFFER_MAX < ((MAX_FINGERS * FSIZE_TYPE4) + FINGER_TYPE4))
#error "WSP_BUFFER_MAX is too small"
#endif
enum {
WSP_FLAG_WELLSPRING1,
WSP_FLAG_WELLSPRING2,
WSP_FLAG_WELLSPRING3,
WSP_FLAG_WELLSPRING4,
WSP_FLAG_WELLSPRING4A,
WSP_FLAG_WELLSPRING5,
WSP_FLAG_WELLSPRING6A,
WSP_FLAG_WELLSPRING6,
WSP_FLAG_WELLSPRING5A,
WSP_FLAG_WELLSPRING7,
WSP_FLAG_WELLSPRING7A,
WSP_FLAG_WELLSPRING8,
WSP_FLAG_WELLSPRING9,
WSP_FLAG_MAX,
};
/* device-specific configuration */
struct wsp_dev_params {
uint8_t caps; /* device capability bitmask */
uint8_t tp_type; /* type of trackpad interface */
uint8_t tp_button; /* offset to button data */
uint8_t tp_offset; /* offset to trackpad finger data */
uint8_t tp_fsize; /* bytes in single finger block */
uint8_t tp_delta; /* offset from header to finger struct */
uint8_t iface_index;
uint8_t um_size; /* usb control message length */
uint8_t um_req_val; /* usb control message value */
uint8_t um_req_idx; /* usb control message index */
uint8_t um_switch_idx; /* usb control message mode switch index */
uint8_t um_switch_on; /* usb control message mode switch on */
uint8_t um_switch_off; /* usb control message mode switch off */
};
static const struct wsp_dev_params wsp_dev_params[WSP_FLAG_MAX] = {
[WSP_FLAG_WELLSPRING1] = {
.caps = 0,
.tp_type = TYPE1,
.tp_button = 0,
.tp_offset = FINGER_TYPE1,
.tp_fsize = FSIZE_TYPE1,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING2] = {
.caps = 0,
.tp_type = TYPE1,
.tp_button = 0,
.tp_offset = FINGER_TYPE1,
.tp_fsize = FSIZE_TYPE1,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING3] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING4] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING4A] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING5] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING6] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING5A] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING6A] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING7] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING7A] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE2,
.tp_button = BUTTON_TYPE2,
.tp_offset = FINGER_TYPE2,
.tp_fsize = FSIZE_TYPE2,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING8] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE3,
.tp_button = BUTTON_TYPE3,
.tp_offset = FINGER_TYPE3,
.tp_fsize = FSIZE_TYPE3,
.tp_delta = 0,
.iface_index = 0,
.um_size = 8,
.um_req_val = 0x03,
.um_req_idx = 0x00,
.um_switch_idx = 0,
.um_switch_on = 0x01,
.um_switch_off = 0x08,
},
[WSP_FLAG_WELLSPRING9] = {
.caps = HAS_INTEGRATED_BUTTON,
.tp_type = TYPE4,
.tp_button = BUTTON_TYPE4,
.tp_offset = FINGER_TYPE4,
.tp_fsize = FSIZE_TYPE4,
.tp_delta = 2,
.iface_index = 2,
.um_size = 2,
.um_req_val = 0x03,
.um_req_idx = 0x02,
.um_switch_idx = 1,
.um_switch_on = 0x01,
.um_switch_off = 0x00,
},
};
#define WSP_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
static const STRUCT_USB_HOST_ID wsp_devs[] = {
/* MacbookAir1.1 */
WSP_DEV(APPLE, WELLSPRING_ANSI, WSP_FLAG_WELLSPRING1),
WSP_DEV(APPLE, WELLSPRING_ISO, WSP_FLAG_WELLSPRING1),
WSP_DEV(APPLE, WELLSPRING_JIS, WSP_FLAG_WELLSPRING1),
/* MacbookProPenryn, aka wellspring2 */
WSP_DEV(APPLE, WELLSPRING2_ANSI, WSP_FLAG_WELLSPRING2),
WSP_DEV(APPLE, WELLSPRING2_ISO, WSP_FLAG_WELLSPRING2),
WSP_DEV(APPLE, WELLSPRING2_JIS, WSP_FLAG_WELLSPRING2),
/* Macbook5,1 (unibody), aka wellspring3 */
WSP_DEV(APPLE, WELLSPRING3_ANSI, WSP_FLAG_WELLSPRING3),
WSP_DEV(APPLE, WELLSPRING3_ISO, WSP_FLAG_WELLSPRING3),
WSP_DEV(APPLE, WELLSPRING3_JIS, WSP_FLAG_WELLSPRING3),
/* MacbookAir3,2 (unibody), aka wellspring4 */
WSP_DEV(APPLE, WELLSPRING4_ANSI, WSP_FLAG_WELLSPRING4),
WSP_DEV(APPLE, WELLSPRING4_ISO, WSP_FLAG_WELLSPRING4),
WSP_DEV(APPLE, WELLSPRING4_JIS, WSP_FLAG_WELLSPRING4),
/* MacbookAir3,1 (unibody), aka wellspring4 */
WSP_DEV(APPLE, WELLSPRING4A_ANSI, WSP_FLAG_WELLSPRING4A),
WSP_DEV(APPLE, WELLSPRING4A_ISO, WSP_FLAG_WELLSPRING4A),
WSP_DEV(APPLE, WELLSPRING4A_JIS, WSP_FLAG_WELLSPRING4A),
/* Macbook8 (unibody, March 2011) */
WSP_DEV(APPLE, WELLSPRING5_ANSI, WSP_FLAG_WELLSPRING5),
WSP_DEV(APPLE, WELLSPRING5_ISO, WSP_FLAG_WELLSPRING5),
WSP_DEV(APPLE, WELLSPRING5_JIS, WSP_FLAG_WELLSPRING5),
/* MacbookAir4,1 (unibody, July 2011) */
WSP_DEV(APPLE, WELLSPRING6A_ANSI, WSP_FLAG_WELLSPRING6A),
WSP_DEV(APPLE, WELLSPRING6A_ISO, WSP_FLAG_WELLSPRING6A),
WSP_DEV(APPLE, WELLSPRING6A_JIS, WSP_FLAG_WELLSPRING6A),
/* MacbookAir4,2 (unibody, July 2011) */
WSP_DEV(APPLE, WELLSPRING6_ANSI, WSP_FLAG_WELLSPRING6),
WSP_DEV(APPLE, WELLSPRING6_ISO, WSP_FLAG_WELLSPRING6),
WSP_DEV(APPLE, WELLSPRING6_JIS, WSP_FLAG_WELLSPRING6),
/* Macbook8,2 (unibody) */
WSP_DEV(APPLE, WELLSPRING5A_ANSI, WSP_FLAG_WELLSPRING5A),
WSP_DEV(APPLE, WELLSPRING5A_ISO, WSP_FLAG_WELLSPRING5A),
WSP_DEV(APPLE, WELLSPRING5A_JIS, WSP_FLAG_WELLSPRING5A),
/* MacbookPro10,1 (unibody, June 2012) */
/* MacbookPro11,1-3 (unibody, June 2013) */
WSP_DEV(APPLE, WELLSPRING7_ANSI, WSP_FLAG_WELLSPRING7),
WSP_DEV(APPLE, WELLSPRING7_ISO, WSP_FLAG_WELLSPRING7),
WSP_DEV(APPLE, WELLSPRING7_JIS, WSP_FLAG_WELLSPRING7),
/* MacbookPro10,2 (unibody, October 2012) */
WSP_DEV(APPLE, WELLSPRING7A_ANSI, WSP_FLAG_WELLSPRING7A),
WSP_DEV(APPLE, WELLSPRING7A_ISO, WSP_FLAG_WELLSPRING7A),
WSP_DEV(APPLE, WELLSPRING7A_JIS, WSP_FLAG_WELLSPRING7A),
/* MacbookAir6,2 (unibody, June 2013) */
WSP_DEV(APPLE, WELLSPRING8_ANSI, WSP_FLAG_WELLSPRING8),
WSP_DEV(APPLE, WELLSPRING8_ISO, WSP_FLAG_WELLSPRING8),
WSP_DEV(APPLE, WELLSPRING8_JIS, WSP_FLAG_WELLSPRING8),
/* MacbookPro12,1 MacbookPro11,4 */
WSP_DEV(APPLE, WELLSPRING9_ANSI, WSP_FLAG_WELLSPRING9),
WSP_DEV(APPLE, WELLSPRING9_ISO, WSP_FLAG_WELLSPRING9),
WSP_DEV(APPLE, WELLSPRING9_JIS, WSP_FLAG_WELLSPRING9),
};
#define WSP_FIFO_BUF_SIZE 8 /* bytes */
#define WSP_FIFO_QUEUE_MAXLEN 50 /* units */
enum {
WSP_INTR_DT,
WSP_N_TRANSFER,
};
struct wsp_softc {
struct usb_device *sc_usb_device;
struct mtx sc_mutex; /* for synchronization */
struct usb_xfer *sc_xfer[WSP_N_TRANSFER];
struct usb_fifo_sc sc_fifo;
const struct wsp_dev_params *sc_params; /* device configuration */
mousehw_t sc_hw;
mousemode_t sc_mode;
u_int sc_pollrate;
mousestatus_t sc_status;
u_int sc_state;
#define WSP_ENABLED 0x01
struct tp_finger *index[MAX_FINGERS]; /* finger index data */
int16_t pos_x[MAX_FINGERS]; /* position array */
int16_t pos_y[MAX_FINGERS]; /* position array */
u_int sc_touch; /* touch status */
#define WSP_UNTOUCH 0x00
#define WSP_FIRST_TOUCH 0x01
#define WSP_SECOND_TOUCH 0x02
#define WSP_TOUCHING 0x04
int16_t pre_pos_x; /* previous position array */
int16_t pre_pos_y; /* previous position array */
int dx_sum; /* x axis cumulative movement */
int dy_sum; /* y axis cumulative movement */
int dz_sum; /* z axis cumulative movement */
int dz_count;
#define WSP_DZ_MAX_COUNT 32
int dt_sum; /* T-axis cumulative movement */
int rdx; /* x axis remainder of divide by scale_factor */
int rdy; /* y axis remainder of divide by scale_factor */
int rdz; /* z axis remainder of divide by scale_factor */
int tp_datalen;
uint8_t o_ntouch; /* old touch finger status */
uint8_t finger; /* 0 or 1 *, check which finger moving */
uint16_t intr_count;
#define WSP_TAP_THRESHOLD 3
#define WSP_TAP_MAX_COUNT 20
int distance; /* the distance of 2 fingers */
#define MAX_DISTANCE 2500 /* the max allowed distance */
uint8_t ibtn; /* button status in tapping */
uint8_t ntaps; /* finger status in tapping */
uint8_t scr_mode; /* scroll status in movement */
#define WSP_SCR_NONE 0
#define WSP_SCR_VER 1
#define WSP_SCR_HOR 2
uint8_t tp_data[WSP_BUFFER_MAX] __aligned(4); /* trackpad transferred data */
};
/*
* function prototypes
*/
static usb_fifo_cmd_t wsp_start_read;
static usb_fifo_cmd_t wsp_stop_read;
static usb_fifo_open_t wsp_open;
static usb_fifo_close_t wsp_close;
static usb_fifo_ioctl_t wsp_ioctl;
static struct usb_fifo_methods wsp_fifo_methods = {
.f_open = &wsp_open,
.f_close = &wsp_close,
.f_ioctl = &wsp_ioctl,
.f_start_read = &wsp_start_read,
.f_stop_read = &wsp_stop_read,
.basename[0] = WSP_DRIVER_NAME,
};
/* device initialization and shutdown */
static int wsp_enable(struct wsp_softc *sc);
static void wsp_disable(struct wsp_softc *sc);
/* updating fifo */
static void wsp_reset_buf(struct wsp_softc *sc);
static void wsp_add_to_queue(struct wsp_softc *, int, int, int, uint32_t);
/* Device methods. */
static device_probe_t wsp_probe;
static device_attach_t wsp_attach;
static device_detach_t wsp_detach;
static usb_callback_t wsp_intr_callback;
static const struct usb_config wsp_config[WSP_N_TRANSFER] = {
[WSP_INTR_DT] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {
.pipe_bof = 0,
.short_xfer_ok = 1,
},
.bufsize = WSP_BUFFER_MAX,
.callback = &wsp_intr_callback,
},
};
static usb_error_t
wsp_set_device_mode(struct wsp_softc *sc, uint8_t on)
{
const struct wsp_dev_params *params = sc->sc_params;
uint8_t mode_bytes[8];
usb_error_t err;
/* Type 3 does not require a mode switch */
if (params->tp_type == TYPE3)
return 0;
err = usbd_req_get_report(sc->sc_usb_device, NULL,
mode_bytes, params->um_size, params->iface_index,
params->um_req_val, params->um_req_idx);
if (err != USB_ERR_NORMAL_COMPLETION) {
DPRINTF("Failed to read device mode (%d)\n", err);
return (err);
}
/*
* XXX Need to wait at least 250ms for hardware to get
* ready. The device mode handling appears to be handled
* asynchronously and we should not issue these commands too
* quickly.
*/
pause("WHW", hz / 4);
mode_bytes[params->um_switch_idx] =
on ? params->um_switch_on : params->um_switch_off;
return (usbd_req_set_report(sc->sc_usb_device, NULL,
mode_bytes, params->um_size, params->iface_index,
params->um_req_val, params->um_req_idx));
}
static int
wsp_enable(struct wsp_softc *sc)
{
/* reset status */
memset(&sc->sc_status, 0, sizeof(sc->sc_status));
sc->sc_state |= WSP_ENABLED;
DPRINTFN(WSP_LLEVEL_INFO, "enabled wsp\n");
return (0);
}
static void
wsp_disable(struct wsp_softc *sc)
{
sc->sc_state &= ~WSP_ENABLED;
DPRINTFN(WSP_LLEVEL_INFO, "disabled wsp\n");
}
static int
wsp_probe(device_t self)
{
struct usb_attach_arg *uaa = device_get_ivars(self);
struct usb_interface_descriptor *id;
struct usb_interface *iface;
uint8_t i;
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
/* figure out first interface matching */
for (i = 1;; i++) {
iface = usbd_get_iface(uaa->device, i);
if (iface == NULL || i == 3)
return (ENXIO);
id = iface->idesc;
if ((id == NULL) ||
(id->bInterfaceClass != UICLASS_HID) ||
(id->bInterfaceProtocol != 0 &&
id->bInterfaceProtocol != UIPROTO_MOUSE))
continue;
break;
}
/* check if we are attaching to the first match */
if (uaa->info.bIfaceIndex != i)
return (ENXIO);
return (usbd_lookup_id_by_uaa(wsp_devs, sizeof(wsp_devs), uaa));
}
static int
wsp_attach(device_t dev)
{
struct wsp_softc *sc = device_get_softc(dev);
struct usb_attach_arg *uaa = device_get_ivars(dev);
usb_error_t err;
void *d_ptr = NULL;
uint16_t d_len;
DPRINTFN(WSP_LLEVEL_INFO, "sc=%p\n", sc);
/* Get HID descriptor */
err = usbd_req_get_hid_desc(uaa->device, NULL, &d_ptr,
&d_len, M_TEMP, uaa->info.bIfaceIndex);
if (err == USB_ERR_NORMAL_COMPLETION) {
/* Get HID report descriptor length */
sc->tp_datalen = hid_report_size(d_ptr, d_len, hid_input, NULL);
free(d_ptr, M_TEMP);
if (sc->tp_datalen <= 0 || sc->tp_datalen > WSP_BUFFER_MAX) {
DPRINTF("Invalid datalength or too big "
"datalength: %d\n", sc->tp_datalen);
return (ENXIO);
}
} else {
return (ENXIO);
}
sc->sc_usb_device = uaa->device;
/* get device specific configuration */
sc->sc_params = wsp_dev_params + USB_GET_DRIVER_INFO(uaa);
/*
* By default the touchpad behaves like a HID device, sending
* packets with reportID = 8. Such reports contain only
* limited information. They encode movement deltas and button
* events, but do not include data from the pressure
* sensors. The device input mode can be switched from HID
* reports to raw sensor data using vendor-specific USB
* control commands:
*/
/*
* During re-enumeration of the device we need to force the
* device back into HID mode before switching it to RAW
* mode. Else the device does not work like expected.
*/
err = wsp_set_device_mode(sc, 0);
if (err != USB_ERR_NORMAL_COMPLETION) {
DPRINTF("Failed to set mode to HID MODE (%d)\n", err);
return (ENXIO);
}
err = wsp_set_device_mode(sc, 1);
if (err != USB_ERR_NORMAL_COMPLETION) {
DPRINTF("failed to set mode to RAW MODE (%d)\n", err);
return (ENXIO);
}
mtx_init(&sc->sc_mutex, "wspmtx", NULL, MTX_DEF | MTX_RECURSE);
err = usbd_transfer_setup(uaa->device,
&uaa->info.bIfaceIndex, sc->sc_xfer, wsp_config,
WSP_N_TRANSFER, sc, &sc->sc_mutex);
if (err) {
DPRINTF("error=%s\n", usbd_errstr(err));
goto detach;
}
if (usb_fifo_attach(sc->sc_usb_device, sc, &sc->sc_mutex,
&wsp_fifo_methods, &sc->sc_fifo,
device_get_unit(dev), -1, uaa->info.bIfaceIndex,
UID_ROOT, GID_OPERATOR, 0644)) {
goto detach;
}
device_set_usb_desc(dev);
sc->sc_hw.buttons = 3;
sc->sc_hw.iftype = MOUSE_IF_USB;
sc->sc_hw.type = MOUSE_PAD;
sc->sc_hw.model = MOUSE_MODEL_GENERIC;
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.rate = -1;
sc->sc_mode.resolution = MOUSE_RES_UNKNOWN;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
sc->sc_touch = WSP_UNTOUCH;
sc->scr_mode = WSP_SCR_NONE;
return (0);
detach:
wsp_detach(dev);
return (ENOMEM);
}
static int
wsp_detach(device_t dev)
{
struct wsp_softc *sc = device_get_softc(dev);
(void) wsp_set_device_mode(sc, 0);
mtx_lock(&sc->sc_mutex);
if (sc->sc_state & WSP_ENABLED)
wsp_disable(sc);
mtx_unlock(&sc->sc_mutex);
usb_fifo_detach(&sc->sc_fifo);
usbd_transfer_unsetup(sc->sc_xfer, WSP_N_TRANSFER);
mtx_destroy(&sc->sc_mutex);
return (0);
}
static void
wsp_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct wsp_softc *sc = usbd_xfer_softc(xfer);
const struct wsp_dev_params *params = sc->sc_params;
struct usb_page_cache *pc;
struct tp_finger *f;
struct tp_header *h;
struct wsp_tuning tun = wsp_tuning;
int ntouch = 0; /* the finger number in touch */
int ibt = 0; /* button status */
int dx = 0;
int dy = 0;
int dz = 0;
int rdx = 0;
int rdy = 0;
int rdz = 0;
int len;
int i;
wsp_runing_rangecheck(&tun);
if (sc->dz_count == 0)
sc->dz_count = WSP_DZ_MAX_COUNT;
usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
/* copy out received data */
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, sc->tp_data, len);
if ((len < params->tp_offset + params->tp_fsize) ||
((len - params->tp_offset) % params->tp_fsize) != 0) {
DPRINTFN(WSP_LLEVEL_INFO, "Invalid length: %d, %x, %x\n",
len, sc->tp_data[0], sc->tp_data[1]);
goto tr_setup;
}
if (len < sc->tp_datalen) {
/* make sure we don't process old data */
memset(sc->tp_data + len, 0, sc->tp_datalen - len);
}
h = (struct tp_header *)(sc->tp_data);
if (params->tp_type >= TYPE2) {
ibt = sc->tp_data[params->tp_button];
ntouch = sc->tp_data[params->tp_button - 1];
}
/* range check */
if (ntouch < 0)
ntouch = 0;
else if (ntouch > MAX_FINGERS)
ntouch = MAX_FINGERS;
for (i = 0; i != ntouch; i++) {
f = (struct tp_finger *)(sc->tp_data + params->tp_offset + params->tp_delta + i * params->tp_fsize);
/* swap endianness, if any */
if (le16toh(0x1234) != 0x1234) {
f->origin = le16toh((uint16_t)f->origin);
f->abs_x = le16toh((uint16_t)f->abs_x);
f->abs_y = le16toh((uint16_t)f->abs_y);
f->rel_x = le16toh((uint16_t)f->rel_x);
f->rel_y = le16toh((uint16_t)f->rel_y);
f->tool_major = le16toh((uint16_t)f->tool_major);
f->tool_minor = le16toh((uint16_t)f->tool_minor);
f->orientation = le16toh((uint16_t)f->orientation);
f->touch_major = le16toh((uint16_t)f->touch_major);
f->touch_minor = le16toh((uint16_t)f->touch_minor);
f->pressure = le16toh((uint16_t)f->pressure);
f->multi = le16toh((uint16_t)f->multi);
}
DPRINTFN(WSP_LLEVEL_INFO,
"[%d]ibt=%d, taps=%d, o=%4d, ax=%5d, ay=%5d, "
"rx=%5d, ry=%5d, tlmaj=%4d, tlmin=%4d, ot=%4x, "
"tchmaj=%4d, tchmin=%4d, presure=%4d, m=%4x\n",
i, ibt, ntouch, f->origin, f->abs_x, f->abs_y,
f->rel_x, f->rel_y, f->tool_major, f->tool_minor, f->orientation,
f->touch_major, f->touch_minor, f->pressure, f->multi);
sc->pos_x[i] = f->abs_x;
sc->pos_y[i] = -f->abs_y;
sc->index[i] = f;
}
sc->sc_status.flags &= ~MOUSE_POSCHANGED;
sc->sc_status.flags &= ~MOUSE_STDBUTTONSCHANGED;
sc->sc_status.obutton = sc->sc_status.button;
sc->sc_status.button = 0;
if (ibt != 0) {
sc->sc_status.button |= MOUSE_BUTTON1DOWN;
sc->ibtn = 1;
}
sc->intr_count++;
if (sc->ntaps < ntouch) {
switch (ntouch) {
case 1:
if (sc->index[0]->touch_major > tun.pressure_tap_threshold &&
sc->index[0]->tool_major <= 1200)
sc->ntaps = 1;
break;
case 2:
if (sc->index[0]->touch_major > tun.pressure_tap_threshold-30 &&
sc->index[1]->touch_major > tun.pressure_tap_threshold-30)
sc->ntaps = 2;
break;
case 3:
if (sc->index[0]->touch_major > tun.pressure_tap_threshold-40 &&
sc->index[1]->touch_major > tun.pressure_tap_threshold-40 &&
sc->index[2]->touch_major > tun.pressure_tap_threshold-40)
sc->ntaps = 3;
break;
default:
break;
}
}
if (ntouch == 2) {
sc->distance = max(sc->distance, max(
abs(sc->pos_x[0] - sc->pos_x[1]),
abs(sc->pos_y[0] - sc->pos_y[1])));
}
if (sc->index[0]->touch_major < tun.pressure_untouch_threshold &&
sc->sc_status.button == 0) {
sc->sc_touch = WSP_UNTOUCH;
if (sc->intr_count < WSP_TAP_MAX_COUNT &&
sc->intr_count > WSP_TAP_THRESHOLD &&
sc->ntaps && sc->ibtn == 0) {
/*
* Add a pair of events (button-down and
* button-up).
*/
switch (sc->ntaps) {
case 1:
if (!(params->caps & HAS_INTEGRATED_BUTTON)) {
wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON1DOWN);
DPRINTFN(WSP_LLEVEL_INFO, "LEFT CLICK!\n");
}
break;
case 2:
DPRINTFN(WSP_LLEVEL_INFO, "sum_x=%5d, sum_y=%5d\n",
sc->dx_sum, sc->dy_sum);
if (sc->distance < MAX_DISTANCE && abs(sc->dx_sum) < 5 &&
abs(sc->dy_sum) < 5) {
wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON3DOWN);
DPRINTFN(WSP_LLEVEL_INFO, "RIGHT CLICK!\n");
}
break;
case 3:
wsp_add_to_queue(sc, 0, 0, 0, MOUSE_BUTTON2DOWN);
break;
default:
/* we don't handle taps of more than three fingers */
break;
}
wsp_add_to_queue(sc, 0, 0, 0, 0); /* button release */
}
if ((sc->dt_sum / tun.scr_hor_threshold) != 0 &&
sc->ntaps == 2 && sc->scr_mode == WSP_SCR_HOR) {
/*
* translate T-axis into button presses
* until further
*/
if (sc->dt_sum > 0)
wsp_add_to_queue(sc, 0, 0, 0, 1UL << 3);
else if (sc->dt_sum < 0)
wsp_add_to_queue(sc, 0, 0, 0, 1UL << 4);
}
sc->dz_count = WSP_DZ_MAX_COUNT;
sc->dz_sum = 0;
sc->intr_count = 0;
sc->ibtn = 0;
sc->ntaps = 0;
sc->finger = 0;
sc->distance = 0;
sc->dt_sum = 0;
sc->dx_sum = 0;
sc->dy_sum = 0;
sc->rdx = 0;
sc->rdy = 0;
sc->rdz = 0;
sc->scr_mode = WSP_SCR_NONE;
} else if (sc->index[0]->touch_major >= tun.pressure_touch_threshold &&
sc->sc_touch == WSP_UNTOUCH) { /* ignore first touch */
sc->sc_touch = WSP_FIRST_TOUCH;
} else if (sc->index[0]->touch_major >= tun.pressure_touch_threshold &&
sc->sc_touch == WSP_FIRST_TOUCH) { /* ignore second touch */
sc->sc_touch = WSP_SECOND_TOUCH;
DPRINTFN(WSP_LLEVEL_INFO, "Fist pre_x=%5d, pre_y=%5d\n",
sc->pre_pos_x, sc->pre_pos_y);
} else {
if (sc->sc_touch == WSP_SECOND_TOUCH)
sc->sc_touch = WSP_TOUCHING;
if (ntouch != 0 &&
sc->index[0]->touch_major >= tun.pressure_touch_threshold) {
dx = sc->pos_x[0] - sc->pre_pos_x;
dy = sc->pos_y[0] - sc->pre_pos_y;
/* Ignore movement during button is releasing */
if (sc->ibtn != 0 && sc->sc_status.button == 0)
dx = dy = 0;
/* Ignore movement if ntouch changed */
if (sc->o_ntouch != ntouch)
dx = dy = 0;
/* Ignore unexpeted movement when typing */
if (ntouch == 1 && sc->index[0]->tool_major > 1200)
dx = dy = 0;
if (sc->ibtn != 0 && ntouch == 1 &&
sc->intr_count < WSP_TAP_MAX_COUNT &&
abs(sc->dx_sum) < 1 && abs(sc->dy_sum) < 1 )
dx = dy = 0;
if (ntouch == 2 && sc->sc_status.button != 0) {
dx = sc->pos_x[sc->finger] - sc->pre_pos_x;
dy = sc->pos_y[sc->finger] - sc->pre_pos_y;
/*
* Ignore movement of switch finger or
* movement from ibt=0 to ibt=1
*/
if (sc->index[0]->origin == 0 || sc->index[1]->origin == 0 ||
sc->sc_status.obutton != sc->sc_status.button) {
dx = dy = 0;
sc->finger = 0;
}
if ((abs(sc->index[0]->rel_x) + abs(sc->index[0]->rel_y)) <
(abs(sc->index[1]->rel_x) + abs(sc->index[1]->rel_y)) &&
sc->finger == 0) {
sc->sc_touch = WSP_SECOND_TOUCH;
dx = dy = 0;
sc->finger = 1;
}
if ((abs(sc->index[0]->rel_x) + abs(sc->index[0]->rel_y)) >=
(abs(sc->index[1]->rel_x) + abs(sc->index[1]->rel_y)) &&
sc->finger == 1) {
sc->sc_touch = WSP_SECOND_TOUCH;
dx = dy = 0;
sc->finger = 0;
}
DPRINTFN(WSP_LLEVEL_INFO, "dx=%5d, dy=%5d, mov=%5d\n",
dx, dy, sc->finger);
}
if (sc->dz_count--) {
rdz = (dy + sc->rdz) % tun.scale_factor;
sc->dz_sum -= (dy + sc->rdz) / tun.scale_factor;
sc->rdz = rdz;
}
if ((sc->dz_sum / tun.z_factor) != 0)
sc->dz_count = 0;
}
rdx = (dx + sc->rdx) % tun.scale_factor;
dx = (dx + sc->rdx) / tun.scale_factor;
sc->rdx = rdx;
rdy = (dy + sc->rdy) % tun.scale_factor;
dy = (dy + sc->rdy) / tun.scale_factor;
sc->rdy = rdy;
sc->dx_sum += dx;
sc->dy_sum += dy;
if (ntouch == 2 && sc->sc_status.button == 0) {
if (sc->scr_mode == WSP_SCR_NONE &&
abs(sc->dx_sum) + abs(sc->dy_sum) > tun.scr_hor_threshold)
sc->scr_mode = abs(sc->dx_sum) >
abs(sc->dy_sum) * 2 ? WSP_SCR_HOR : WSP_SCR_VER;
DPRINTFN(WSP_LLEVEL_INFO, "scr_mode=%5d, count=%d, dx_sum=%d, dy_sum=%d\n",
sc->scr_mode, sc->intr_count, sc->dx_sum, sc->dy_sum);
if (sc->scr_mode == WSP_SCR_HOR)
sc->dt_sum += dx;
else
sc->dt_sum = 0;
dx = dy = 0;
if (sc->dz_count == 0)
dz = sc->dz_sum / tun.z_factor;
if (sc->scr_mode == WSP_SCR_HOR ||
abs(sc->pos_x[0] - sc->pos_x[1]) > MAX_DISTANCE ||
abs(sc->pos_y[0] - sc->pos_y[1]) > MAX_DISTANCE)
dz = 0;
}
if (ntouch == 3)
dx = dy = dz = 0;
if (sc->intr_count < WSP_TAP_MAX_COUNT &&
abs(dx) < 3 && abs(dy) < 3 && abs(dz) < 3)
dx = dy = dz = 0;
else
sc->intr_count = WSP_TAP_MAX_COUNT;
if (dx || dy || dz)
sc->sc_status.flags |= MOUSE_POSCHANGED;
DPRINTFN(WSP_LLEVEL_INFO, "dx=%5d, dy=%5d, dz=%5d, sc_touch=%x, btn=%x\n",
dx, dy, dz, sc->sc_touch, sc->sc_status.button);
sc->sc_status.dx += dx;
sc->sc_status.dy += dy;
sc->sc_status.dz += dz;
wsp_add_to_queue(sc, dx, -dy, dz, sc->sc_status.button);
if (sc->dz_count == 0) {
sc->dz_sum = 0;
sc->rdz = 0;
}
}
sc->pre_pos_x = sc->pos_x[0];
sc->pre_pos_y = sc->pos_y[0];
if (ntouch == 2 && sc->sc_status.button != 0) {
sc->pre_pos_x = sc->pos_x[sc->finger];
sc->pre_pos_y = sc->pos_y[sc->finger];
}
sc->o_ntouch = ntouch;
case USB_ST_SETUP:
tr_setup:
/* check if we can put more data into the FIFO */
if (usb_fifo_put_bytes_max(
sc->sc_fifo.fp[USB_FIFO_RX]) != 0) {
usbd_xfer_set_frame_len(xfer, 0,
sc->tp_datalen);
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static void
wsp_add_to_queue(struct wsp_softc *sc, int dx, int dy, int dz,
uint32_t buttons_in)
{
uint32_t buttons_out;
uint8_t buf[8];
dx = imin(dx, 254);
dx = imax(dx, -256);
dy = imin(dy, 254);
dy = imax(dy, -256);
dz = imin(dz, 126);
dz = imax(dz, -128);
buttons_out = MOUSE_MSC_BUTTONS;
if (buttons_in & MOUSE_BUTTON1DOWN)
buttons_out &= ~MOUSE_MSC_BUTTON1UP;
else if (buttons_in & MOUSE_BUTTON2DOWN)
buttons_out &= ~MOUSE_MSC_BUTTON2UP;
else if (buttons_in & MOUSE_BUTTON3DOWN)
buttons_out &= ~MOUSE_MSC_BUTTON3UP;
/* Encode the mouse data in standard format; refer to mouse(4) */
buf[0] = sc->sc_mode.syncmask[1];
buf[0] |= buttons_out;
buf[1] = dx >> 1;
buf[2] = dy >> 1;
buf[3] = dx - (dx >> 1);
buf[4] = dy - (dy >> 1);
/* Encode extra bytes for level 1 */
if (sc->sc_mode.level == 1) {
buf[5] = dz >> 1; /* dz / 2 */
buf[6] = dz - (dz >> 1);/* dz - (dz / 2) */
buf[7] = (((~buttons_in) >> 3) & MOUSE_SYS_EXTBUTTONS);
}
usb_fifo_put_data_linear(sc->sc_fifo.fp[USB_FIFO_RX], buf,
sc->sc_mode.packetsize, 1);
}
static void
wsp_reset_buf(struct wsp_softc *sc)
{
/* reset read queue */
usb_fifo_reset(sc->sc_fifo.fp[USB_FIFO_RX]);
}
static void
wsp_start_read(struct usb_fifo *fifo)
{
struct wsp_softc *sc = usb_fifo_softc(fifo);
int rate;
/* Check if we should override the default polling interval */
rate = sc->sc_pollrate;
/* Range check rate */
if (rate > 1000)
rate = 1000;
/* Check for set rate */
if ((rate > 0) && (sc->sc_xfer[WSP_INTR_DT] != NULL)) {
/* Stop current transfer, if any */
usbd_transfer_stop(sc->sc_xfer[WSP_INTR_DT]);
/* Set new interval */
usbd_xfer_set_interval(sc->sc_xfer[WSP_INTR_DT], 1000 / rate);
/* Only set pollrate once */
sc->sc_pollrate = 0;
}
usbd_transfer_start(sc->sc_xfer[WSP_INTR_DT]);
}
static void
wsp_stop_read(struct usb_fifo *fifo)
{
struct wsp_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[WSP_INTR_DT]);
}
static int
wsp_open(struct usb_fifo *fifo, int fflags)
{
DPRINTFN(WSP_LLEVEL_INFO, "\n");
if (fflags & FREAD) {
struct wsp_softc *sc = usb_fifo_softc(fifo);
int rc;
if (sc->sc_state & WSP_ENABLED)
return (EBUSY);
if (usb_fifo_alloc_buffer(fifo,
WSP_FIFO_BUF_SIZE, WSP_FIFO_QUEUE_MAXLEN)) {
return (ENOMEM);
}
rc = wsp_enable(sc);
if (rc != 0) {
usb_fifo_free_buffer(fifo);
return (rc);
}
}
return (0);
}
static void
wsp_close(struct usb_fifo *fifo, int fflags)
{
if (fflags & FREAD) {
struct wsp_softc *sc = usb_fifo_softc(fifo);
wsp_disable(sc);
usb_fifo_free_buffer(fifo);
}
}
int
wsp_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags)
{
struct wsp_softc *sc = usb_fifo_softc(fifo);
mousemode_t mode;
int error = 0;
mtx_lock(&sc->sc_mutex);
switch (cmd) {
case MOUSE_GETHWINFO:
*(mousehw_t *)addr = sc->sc_hw;
break;
case MOUSE_GETMODE:
*(mousemode_t *)addr = sc->sc_mode;
break;
case MOUSE_SETMODE:
mode = *(mousemode_t *)addr;
if (mode.level == -1)
/* Don't change the current setting */
;
else if ((mode.level < 0) || (mode.level > 1)) {
error = EINVAL;
goto done;
}
sc->sc_mode.level = mode.level;
sc->sc_pollrate = mode.rate;
sc->sc_hw.buttons = 3;
if (sc->sc_mode.level == 0) {
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
} else if (sc->sc_mode.level == 1) {
sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
}
wsp_reset_buf(sc);
break;
case MOUSE_GETLEVEL:
*(int *)addr = sc->sc_mode.level;
break;
case MOUSE_SETLEVEL:
if (*(int *)addr < 0 || *(int *)addr > 1) {
error = EINVAL;
goto done;
}
sc->sc_mode.level = *(int *)addr;
sc->sc_hw.buttons = 3;
if (sc->sc_mode.level == 0) {
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
} else if (sc->sc_mode.level == 1) {
sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
}
wsp_reset_buf(sc);
break;
case MOUSE_GETSTATUS:{
mousestatus_t *status = (mousestatus_t *)addr;
*status = sc->sc_status;
sc->sc_status.obutton = sc->sc_status.button;
sc->sc_status.button = 0;
sc->sc_status.dx = 0;
sc->sc_status.dy = 0;
sc->sc_status.dz = 0;
if (status->dx || status->dy || status->dz)
status->flags |= MOUSE_POSCHANGED;
if (status->button != status->obutton)
status->flags |= MOUSE_BUTTONSCHANGED;
break;
}
default:
error = ENOTTY;
}
done:
mtx_unlock(&sc->sc_mutex);
return (error);
}
static device_method_t wsp_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, wsp_probe),
DEVMETHOD(device_attach, wsp_attach),
DEVMETHOD(device_detach, wsp_detach),
DEVMETHOD_END
};
static driver_t wsp_driver = {
.name = WSP_DRIVER_NAME,
.methods = wsp_methods,
.size = sizeof(struct wsp_softc)
};
static devclass_t wsp_devclass;
DRIVER_MODULE(wsp, uhub, wsp_driver, wsp_devclass, NULL, 0);
MODULE_DEPEND(wsp, usb, 1, 1, 1);
MODULE_VERSION(wsp, 1);
USB_PNP_HOST_INFO(wsp_devs);
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