| /* |
| * 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" |
| |
| 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 0; |
| } |
| |
| static bool lifebook_use_6byte_proto; |
| |
| static int lifebook_set_6byte_proto(const struct dmi_system_id *d) |
| { |
| lifebook_use_6byte_proto = true; |
| return 0; |
| } |
| |
| static const struct dmi_system_id __initconst lifebook_dmi_table[] = { |
| { |
| /* 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) |
| printk(KERN_WARNING "lifebook.c: 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 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_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; |
| } |
| |