diff options
Diffstat (limited to 'drivers/input/mouse/lifebook.c')
| -rw-r--r-- | drivers/input/mouse/lifebook.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c new file mode 100644 index 00000000000..5b8883857b8 --- /dev/null +++ b/drivers/input/mouse/lifebook.c @@ -0,0 +1,126 @@ +/* + * Fujitsu B-series Lifebook PS/2 TouchScreen driver + * + * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> + * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de> + * + * 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 <linux/input.h> +#include <linux/serio.h> +#include <linux/libps2.h> +#include <linux/dmi.h> + +#include "psmouse.h" +#include "lifebook.h" + +static int max_y = 1024; + + +static struct dmi_system_id lifebook_dmi_table[] = { + { + .ident = "Fujitsu Siemens Lifebook B-Sereis", + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"), + }, + }, + { } +}; + + +static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse, struct pt_regs *regs) +{ + unsigned char *packet = psmouse->packet; + struct input_dev *dev = &psmouse->dev; + + if ( psmouse->pktcnt != 3 ) + return PSMOUSE_GOOD_DATA; + + input_regs(dev, regs); + + /* calculate X and Y */ + if ((packet[0] & 0x08) == 0x00) { + input_report_abs(dev, ABS_X, + (packet[1] | ((packet[0] & 0x30) << 4))); + input_report_abs(dev, ABS_Y, + max_y - (packet[2] | ((packet[0] & 0xC0) << 2))); + } else { + 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]))); + } + + 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_initialize(struct psmouse *psmouse) +{ + struct ps2dev *ps2dev = &psmouse->ps2dev; + unsigned char param; + + if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) + return -1; + + if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_BAT)) + return -1; + + /* + Enable absolute output -- ps2_command fails always but if + you leave this call out the touchsreen will never send + absolute coordinates + */ + param = 0x07; + ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES); + + psmouse->set_rate(psmouse, psmouse->rate); + psmouse->set_resolution(psmouse, psmouse->resolution); + + if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) + return -1; + + return 0; +} + +static void lifebook_disconnect(struct psmouse *psmouse) +{ + psmouse_reset(psmouse); +} + +int lifebook_detect(struct psmouse *psmouse, unsigned int max_proto, + int set_properties) +{ + if (!dmi_check_system(lifebook_dmi_table) && + (max_proto != PSMOUSE_LIFEBOOK) ) + return -1; + + if (set_properties) { + psmouse->vendor = "Fujitsu Lifebook"; + psmouse->name = "TouchScreen"; + psmouse->dev.evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL); + psmouse->dev.keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); + psmouse->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); + psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y); + input_set_abs_params(&psmouse->dev, ABS_X, 0, 1024, 0, 0); + input_set_abs_params(&psmouse->dev, ABS_Y, 0, 1024, 0, 0); + + psmouse->protocol_handler = lifebook_process_byte; + psmouse->disconnect = lifebook_disconnect; + psmouse->reconnect = lifebook_initialize; + psmouse->pktsize = 3; + } + + return lifebook_initialize(psmouse); +} |