diff options
Diffstat (limited to 'freebsd/sys/dev/usb/input/wsp.c')
| -rw-r--r-- | freebsd/sys/dev/usb/input/wsp.c | 1405 |
1 files changed, 1405 insertions, 0 deletions
diff --git a/freebsd/sys/dev/usb/input/wsp.c b/freebsd/sys/dev/usb/input/wsp.c new file mode 100644 index 00000000..cff29723 --- /dev/null +++ b/freebsd/sys/dev/usb/input/wsp.c @@ -0,0 +1,1405 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/*- + * 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 <rtems/bsd/sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <rtems/bsd/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 <rtems/bsd/local/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; + int enable_single_tap_clicks; +} + wsp_tuning = +{ + .scale_factor = 12, + .z_factor = 5, + .pressure_touch_threshold = 50, + .pressure_untouch_threshold = 10, + .pressure_tap_threshold = 120, + .scr_hor_threshold = 20, + .enable_single_tap_clicks = 1, +}; + +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); + WSP_CLAMP(ptun->enable_single_tap_clicks, 0, 1); +} + +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"); +SYSCTL_INT(_hw_usb_wsp, OID_AUTO, enable_single_tap_clicks, CTLFLAG_RWTUN, + &wsp_tuning.enable_single_tap_clicks, 0, "enable single tap clicks"); + +/* + * 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) || tun.enable_single_tap_clicks) { + 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); |