--- /dev/null
+/*
+ * 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 <linux/slab.h>
+
+#include "psmouse.h"
+#include "lifebook.h"
+
+struct lifebook_data {
+ struct input_dev *dev2; /* Relative device */
+ char phys[32];
+};
+
+static bool lifebook_present;
+
+static const char *desired_serio_phys;
+
+static int lifebook_limit_serio3(const struct dmi_system_id *d)
+{
+ desired_serio_phys = "isa0060/serio3";
+ return 1;
+}
+
+static bool lifebook_use_6byte_proto;
+
+static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
+{
+ lifebook_use_6byte_proto = true;
+ return 1;
+}
+
+static const struct dmi_system_id lifebook_dmi_table[] __initconst = {
+ {
+ /* FLORA-ie 55mi */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
+ },
+ },
+ {
+ /* LifeBook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lifebook B Series"),
+ },
+ },
+ {
+ /* LifeBook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
+ },
+ },
+ {
+ /* Lifebook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
+ },
+ },
+ {
+ /* Lifebook B-2130 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
+ },
+ },
+ {
+ /* Lifebook B213x/B2150 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
+ },
+ },
+ {
+ /* Zephyr */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
+ },
+ },
+ {
+ /* Panasonic CF-18 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
+ },
+ .callback = lifebook_limit_serio3,
+ },
+ {
+ /* Panasonic CF-28 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Panasonic CF-29 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Panasonic CF-72 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Lifebook B142 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
+ },
+ },
+ { }
+};
+
+void __init lifebook_module_init(void)
+{
+ lifebook_present = dmi_check_system(lifebook_dmi_table);
+}
+
+static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
+{
+ struct lifebook_data *priv = psmouse->private;
+ struct input_dev *dev1 = psmouse->dev;
+ struct input_dev *dev2 = priv ? priv->dev2 : NULL;
+ unsigned char *packet = psmouse->packet;
+ bool 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) {
+ if (!dev2)
+ psmouse_warn(psmouse,
+ "got relative packet but no relative device set up\n");
+ } else {
+ if (lifebook_use_6byte_proto) {
+ input_report_abs(dev1, ABS_X,
+ ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f));
+ input_report_abs(dev1, ABS_Y,
+ 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f)));
+ } else {
+ input_report_abs(dev1, ABS_X,
+ (packet[1] | ((packet[0] & 0x30) << 4)));
+ input_report_abs(dev1, ABS_Y,
+ 1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
+ }
+ input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04);
+ input_sync(dev1);
+ }
+
+ if (dev2) {
+ if (relative_packet) {
+ input_report_rel(dev2, REL_X,
+ ((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
+ input_report_rel(dev2, REL_Y,
+ -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
+ }
+ input_report_key(dev2, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev2, BTN_RIGHT, packet[0] & 0x02);
+ input_sync(dev2);
+ }
+
+ 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 touchscreen will never send
+ * absolute coordinates
+ */
+ param = lifebook_use_6byte_proto ? 0x08 : 0x07;
+ ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
+
+ return 0;
+}
+
+static void lifebook_relative_mode(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param = 0x06;
+
+ ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
+}
+
+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)
+{
+ struct lifebook_data *priv = psmouse->private;
+
+ psmouse_reset(psmouse);
+ if (priv) {
+ input_unregister_device(priv->dev2);
+ kfree(priv);
+ }
+ psmouse->private = NULL;
+}
+
+int lifebook_detect(struct psmouse *psmouse, bool set_properties)
+{
+ if (!lifebook_present)
+ 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;
+}
+
+static int lifebook_create_relative_device(struct psmouse *psmouse)
+{
+ struct input_dev *dev2;
+ struct lifebook_data *priv;
+ int error = -ENOMEM;
+
+ priv = kzalloc(sizeof(struct lifebook_data), GFP_KERNEL);
+ dev2 = input_allocate_device();
+ if (!priv || !dev2)
+ goto err_out;
+
+ priv->dev2 = dev2;
+ snprintf(priv->phys, sizeof(priv->phys),
+ "%s/input1", psmouse->ps2dev.serio->phys);
+
+ dev2->phys = priv->phys;
+ dev2->name = "PS/2 Touchpad";
+ dev2->id.bustype = BUS_I8042;
+ dev2->id.vendor = 0x0002;
+ dev2->id.product = PSMOUSE_LIFEBOOK;
+ dev2->id.version = 0x0000;
+ dev2->dev.parent = &psmouse->ps2dev.serio->dev;
+
+ dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ dev2->keybit[BIT_WORD(BTN_LEFT)] =
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
+
+ error = input_register_device(priv->dev2);
+ if (error)
+ goto err_out;
+
+ psmouse->private = priv;
+ return 0;
+
+ err_out:
+ input_free_device(dev2);
+ kfree(priv);
+ return error;
+}
+
+int lifebook_init(struct psmouse *psmouse)
+{
+ struct input_dev *dev1 = psmouse->dev;
+ int max_coord = lifebook_use_6byte_proto ? 4096 : 1024;
+
+ if (lifebook_absolute_mode(psmouse))
+ return -1;
+
+ dev1->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ dev1->relbit[0] = 0;
+ dev1->keybit[BIT_WORD(BTN_MOUSE)] = 0;
+ dev1->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(dev1, ABS_X, 0, max_coord, 0, 0);
+ input_set_abs_params(dev1, ABS_Y, 0, max_coord, 0, 0);
+
+ if (!desired_serio_phys) {
+ if (lifebook_create_relative_device(psmouse)) {
+ lifebook_relative_mode(psmouse);
+ return -1;
+ }
+ }
+
+ psmouse->protocol_handler = lifebook_process_byte;
+ psmouse->set_resolution = lifebook_set_resolution;
+ psmouse->disconnect = lifebook_disconnect;
+ psmouse->reconnect = lifebook_absolute_mode;
+
+ psmouse->model = lifebook_use_6byte_proto ? 6 : 3;
+
+ /*
+ * 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;
+}
+
Code Review / kvmfornfv.git / blobdiff