err.no Git - linux-2.6/blob - drivers/input/mouse/lifebook.c

   1 /*
   2  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
   3  *
   4  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
   5  * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
   6  *
   7  * TouchScreen detection, absolute mode setting and packet layout is taken from
   8  * Harald Hoyer's description of the device.
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License version 2 as published by
  12  * the Free Software Foundation.
  13  */
  14
  15 #include <linux/input.h>
  16 #include <linux/serio.h>
  17 #include <linux/libps2.h>
  18 #include <linux/dmi.h>
  19
  20 #include "psmouse.h"
  21 #include "lifebook.h"
  22
  23 static const char *desired_serio_phys;
  24
  25 static int lifebook_set_serio_phys(struct dmi_system_id *d)
  26 {
  27         desired_serio_phys = d->driver_data;
  28         return 0;
  29 }
  30
  31 static struct dmi_system_id lifebook_dmi_table[] = {
  32         {
  33                 .ident = "FLORA-ie 55mi",
  34                 .matches = {
  35                         DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
  36                 },
  37         },
  38         {
  39                 .ident = "LifeBook B",
  40                 .matches = {
  41                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
  42                 },
  43         },
  44         {
  45                 .ident = "Lifebook B",
  46                 .matches = {
  47                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
  48                 },
  49         },
  50         {
  51                 .ident = "Lifebook B213x/B2150",
  52                 .matches = {
  53                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
  54                 },
  55         },
  56         {
  57                 .ident = "Zephyr",
  58                 .matches = {
  59                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
  60                 },
  61         },
  62         {
  63                 .ident = "CF-18",
  64                 .matches = {
  65                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
  66                 },
  67                 .callback = lifebook_set_serio_phys,
  68                 .driver_data = "isa0060/serio3",
  69         },
  70         {
  71                 .ident = "Lifebook B142",
  72                 .matches = {
  73                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
  74                 },
  75         },
  76         { }
  77 };
  78
  79 static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
  80 {
  81         unsigned char *packet = psmouse->packet;
  82         struct input_dev *dev = psmouse->dev;
  83
  84         if (psmouse->pktcnt != 3)
  85                 return PSMOUSE_GOOD_DATA;
  86
  87         /* calculate X and Y */
  88         if ((packet[0] & 0x08) == 0x00) {
  89                 input_report_abs(dev, ABS_X,
  90                                  (packet[1] | ((packet[0] & 0x30) << 4)));
  91                 input_report_abs(dev, ABS_Y,
  92                                  1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
  93         } else {
  94                 input_report_rel(dev, REL_X,
  95                                 ((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
  96                 input_report_rel(dev, REL_Y,
  97                                  -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
  98         }
  99
 100         input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
 101         input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
 102         input_report_key(dev, BTN_TOUCH, packet[0] & 0x04);
 103
 104         input_sync(dev);
 105
 106         return PSMOUSE_FULL_PACKET;
 107 }
 108
 109 static int lifebook_absolute_mode(struct psmouse *psmouse)
 110 {
 111         struct ps2dev *ps2dev = &psmouse->ps2dev;
 112         unsigned char param;
 113
 114         if (psmouse_reset(psmouse))
 115                 return -1;
 116
 117         /*
 118            Enable absolute output -- ps2_command fails always but if
 119            you leave this call out the touchsreen will never send
 120            absolute coordinates
 121         */
 122         param = 0x07;
 123         ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
 124
 125         return 0;
 126 }
 127
 128 static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
 129 {
 130         static const unsigned char params[] = { 0, 1, 2, 2, 3 };
 131         unsigned char p;
 132
 133         if (resolution == 0 || resolution > 400)
 134                 resolution = 400;
 135
 136         p = params[resolution / 100];
 137         ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
 138         psmouse->resolution = 50 << p;
 139 }
 140
 141 static void lifebook_disconnect(struct psmouse *psmouse)
 142 {
 143         psmouse_reset(psmouse);
 144 }
 145
 146 int lifebook_detect(struct psmouse *psmouse, int set_properties)
 147 {
 148         if (!dmi_check_system(lifebook_dmi_table))
 149                 return -1;
 150
 151         if (desired_serio_phys &&
 152             strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys))
 153                 return -1;
 154
 155         if (set_properties) {
 156                 psmouse->vendor = "Fujitsu";
 157                 psmouse->name = "Lifebook TouchScreen";
 158         }
 159
 160         return 0;
 161 }
 162
 163 int lifebook_init(struct psmouse *psmouse)
 164 {
 165         struct input_dev *input_dev = psmouse->dev;
 166
 167         if (lifebook_absolute_mode(psmouse))
 168                 return -1;
 169
 170         input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL);
 171         input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 172         input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
 173         input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
 174         input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0);
 175         input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0);
 176
 177         psmouse->protocol_handler = lifebook_process_byte;
 178         psmouse->set_resolution = lifebook_set_resolution;
 179         psmouse->disconnect = lifebook_disconnect;
 180         psmouse->reconnect  = lifebook_absolute_mode;
 181         psmouse->pktsize = 3;
 182
 183         return 0;
 184 }
 185