/* * Fujitsu B-series Lifebook PS/2 TouchScreen driver * * Copyright (c) 2005 Vojtech Pavlik * Copyright (c) 2005 Kenan Esau * * TouchScreen detection, absolute mode setting and packet layout is taken from * Harald Hoyer's description of the device. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #include #include #include #include #include "psmouse.h" #include "lifebook.h" static const char *desired_serio_phys; static int lifebook_set_serio_phys(struct dmi_system_id *d) { desired_serio_phys = d->driver_data; return 0; } static unsigned char lifebook_use_6byte_proto; static int lifebook_set_6byte_proto(struct dmi_system_id *d) { lifebook_use_6byte_proto = 1; return 0; } static struct dmi_system_id lifebook_dmi_table[] = { { .ident = "FLORA-ie 55mi", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"), }, }, { .ident = "LifeBook B", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"), }, }, { .ident = "Lifebook B", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"), }, }, { .ident = "Lifebook B213x/B2150", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"), }, }, { .ident = "Zephyr", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"), }, }, { .ident = "CF-18", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"), }, .callback = lifebook_set_serio_phys, .driver_data = "isa0060/serio3", }, { .ident = "Panasonic CF-28", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"), DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"), }, .callback = lifebook_set_6byte_proto, }, { .ident = "Lifebook B142", .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"), }, }, { } }; static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse) { struct input_dev *dev = psmouse->dev; unsigned char *packet = psmouse->packet; int relative_packet = packet[0] & 0x08; if (relative_packet || !lifebook_use_6byte_proto) { if (psmouse->pktcnt != 3) return PSMOUSE_GOOD_DATA; } else { switch (psmouse->pktcnt) { case 1: return (packet[0] & 0xf8) == 0x00 ? PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; case 2: return PSMOUSE_GOOD_DATA; case 3: return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ? PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; case 4: return (packet[3] & 0xf8) == 0xc0 ? PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; case 5: return (packet[4] & 0xc0) == (packet[2] & 0xc0) ? PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; case 6: if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0)) return PSMOUSE_BAD_DATA; if ((packet[5] & 0xc0) != (packet[1] & 0xc0)) return PSMOUSE_BAD_DATA; break; /* report data */ } } if (relative_packet) { input_report_rel(dev, REL_X, ((packet[0] & 0x10) ? packet[1] - 256 : packet[1])); input_report_rel(dev, REL_Y, -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2])); } else if (lifebook_use_6byte_proto) { input_report_abs(dev, ABS_X, ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f)); input_report_abs(dev, ABS_Y, 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f))); } else { input_report_abs(dev, ABS_X, (packet[1] | ((packet[0] & 0x30) << 4))); input_report_abs(dev, ABS_Y, 1024 - (packet[2] | ((packet[0] & 0xC0) << 2))); } input_report_key(dev, BTN_LEFT, packet[0] & 0x01); input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); input_report_key(dev, BTN_TOUCH, packet[0] & 0x04); input_sync(dev); return PSMOUSE_FULL_PACKET; } static int lifebook_absolute_mode(struct psmouse *psmouse) { struct ps2dev *ps2dev = &psmouse->ps2dev; unsigned char param; if (psmouse_reset(psmouse)) return -1; /* Enable absolute output -- ps2_command fails always but if you leave this call out the touchsreen will never send absolute coordinates */ param = lifebook_use_6byte_proto ? 0x08 : 0x07; ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES); return 0; } static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution) { static const unsigned char params[] = { 0, 1, 2, 2, 3 }; unsigned char p; if (resolution == 0 || resolution > 400) resolution = 400; p = params[resolution / 100]; ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES); psmouse->resolution = 50 << p; } static void lifebook_disconnect(struct psmouse *psmouse) { psmouse_reset(psmouse); } int lifebook_detect(struct psmouse *psmouse, int set_properties) { if (!dmi_check_system(lifebook_dmi_table)) return -1; if (desired_serio_phys && strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys)) return -1; if (set_properties) { psmouse->vendor = "Fujitsu"; psmouse->name = "Lifebook TouchScreen"; } return 0; } int lifebook_init(struct psmouse *psmouse) { struct input_dev *input_dev = psmouse->dev; int max_coord = lifebook_use_6byte_proto ? 1024 : 4096; if (lifebook_absolute_mode(psmouse)) return -1; input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL); input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y); input_set_abs_params(input_dev, ABS_X, 0, max_coord, 0, 0); input_set_abs_params(input_dev, ABS_Y, 0, max_coord, 0, 0); psmouse->protocol_handler = lifebook_process_byte; psmouse->set_resolution = lifebook_set_resolution; psmouse->disconnect = lifebook_disconnect; psmouse->reconnect = lifebook_absolute_mode; /* * Use packet size = 3 even when using 6-byte protocol because * that's what POLL will return on Lifebooks (according to spec). */ psmouse->pktsize = 3; return 0; }