/* * Logitech PS/2++ mouse driver * * Copyright (c) 1999-2003 Vojtech Pavlik * Copyright (c) 2003 Eric Wong * * 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 "psmouse.h" #include "logips2pp.h" /* * Process a PS2++ or PS2T++ packet. */ void ps2pp_process_packet(struct psmouse *psmouse) { struct input_dev *dev = &psmouse->dev; unsigned char *packet = psmouse->packet; if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) { switch ((packet[1] >> 4) | (packet[0] & 0x30)) { case 0x0d: /* Mouse extra info */ input_report_rel(dev, packet[2] & 0x80 ? REL_HWHEEL : REL_WHEEL, (int) (packet[2] & 8) - (int) (packet[2] & 7)); input_report_key(dev, BTN_SIDE, (packet[2] >> 4) & 1); input_report_key(dev, BTN_EXTRA, (packet[2] >> 5) & 1); break; case 0x0e: /* buttons 4, 5, 6, 7, 8, 9, 10 info */ input_report_key(dev, BTN_SIDE, (packet[2]) & 1); input_report_key(dev, BTN_EXTRA, (packet[2] >> 1) & 1); input_report_key(dev, BTN_BACK, (packet[2] >> 3) & 1); input_report_key(dev, BTN_FORWARD, (packet[2] >> 4) & 1); input_report_key(dev, BTN_TASK, (packet[2] >> 2) & 1); break; case 0x0f: /* TouchPad extra info */ input_report_rel(dev, packet[2] & 0x08 ? REL_HWHEEL : REL_WHEEL, (int) ((packet[2] >> 4) & 8) - (int) ((packet[2] >> 4) & 7)); packet[0] = packet[2] | 0x08; break; #ifdef DEBUG default: printk(KERN_WARNING "psmouse.c: Received PS2++ packet #%x, but don't know how to handle.\n", (packet[1] >> 4) | (packet[0] & 0x30)); #endif } packet[0] &= 0x0f; packet[1] = 0; packet[2] = 0; } } /* * ps2pp_cmd() sends a PS2++ command, sliced into two bit * pieces through the SETRES command. This is needed to send extended * commands to mice on notebooks that try to understand the PS/2 protocol * Ugly. */ static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned char command) { unsigned char d; int i; if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) return -1; for (i = 6; i >= 0; i -= 2) { d = (command >> i) & 3; if(psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES)) return -1; } if (psmouse_command(psmouse, param, PSMOUSE_CMD_POLL)) return -1; return 0; } /* * SmartScroll / CruiseControl for some newer Logitech mice Defaults to * enabled if we do nothing to it. Of course I put this in because I want it * disabled :P * 1 - enabled (if previously disabled, also default) * 0/2 - disabled */ static void ps2pp_set_smartscroll(struct psmouse *psmouse) { unsigned char param[4]; ps2pp_cmd(psmouse, param, 0x32); param[0] = 0; psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES); psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES); psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES); if (psmouse_smartscroll == 1) param[0] = 1; else if (psmouse_smartscroll > 2) return; /* else leave param[0] == 0 to disable */ psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES); } /* * Support 800 dpi resolution _only_ if the user wants it (there are good * reasons to not use it even if the mouse supports it, and of course there are * also good reasons to use it, let the user decide). */ void ps2pp_set_800dpi(struct psmouse *psmouse) { unsigned char param = 3; psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); psmouse_command(psmouse, ¶m, PSMOUSE_CMD_SETRES); } /* * Detect the exact model and features of a PS2++ or PS2T++ Logitech mouse or * touchpad. */ static int ps2pp_detect_model(struct psmouse *psmouse, unsigned char *param) { int i; static struct _logips2_list { const int model; unsigned const int features; } logips2pp_list [] = { { 12, PS2PP_4BTN}, { 13, 0 }, { 40, PS2PP_4BTN }, { 41, PS2PP_4BTN }, { 42, PS2PP_4BTN }, { 43, PS2PP_4BTN }, { 50, 0 }, { 51, 0 }, { 52, PS2PP_4BTN | PS2PP_WHEEL }, { 53, PS2PP_WHEEL }, { 61, PS2PP_WHEEL | PS2PP_MX }, /* MX700 */ { 73, PS2PP_4BTN }, { 75, PS2PP_WHEEL }, { 76, PS2PP_WHEEL }, { 80, PS2PP_4BTN | PS2PP_WHEEL }, { 81, PS2PP_WHEEL }, { 83, PS2PP_WHEEL }, { 88, PS2PP_WHEEL }, { 96, 0 }, { 97, 0 }, { 100 , PS2PP_WHEEL | PS2PP_MX }, /* MX510 */ { 112 , PS2PP_WHEEL | PS2PP_MX }, /* MX500 */ { 114 , PS2PP_WHEEL | PS2PP_MX | PS2PP_MX310 }, /* MX310 */ { } }; psmouse->vendor = "Logitech"; psmouse->model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78); if (param[1] < 3) clear_bit(BTN_MIDDLE, psmouse->dev.keybit); if (param[1] < 2) clear_bit(BTN_RIGHT, psmouse->dev.keybit); psmouse->type = PSMOUSE_PS2; for (i = 0; logips2pp_list[i].model; i++){ if (logips2pp_list[i].model == psmouse->model){ psmouse->type = PSMOUSE_PS2PP; if (logips2pp_list[i].features & PS2PP_4BTN) set_bit(BTN_SIDE, psmouse->dev.keybit); if (logips2pp_list[i].features & PS2PP_WHEEL){ set_bit(REL_WHEEL, psmouse->dev.relbit); psmouse->name = "Wheel Mouse"; } if (logips2pp_list[i].features & PS2PP_MX) { set_bit(BTN_SIDE, psmouse->dev.keybit); set_bit(BTN_EXTRA, psmouse->dev.keybit); set_bit(BTN_TASK, psmouse->dev.keybit); if (!(logips2pp_list[i].features & PS2PP_MX310)){ set_bit(BTN_BACK, psmouse->dev.keybit); set_bit(BTN_FORWARD, psmouse->dev.keybit); } psmouse->name = "MX Mouse"; } break; } } /* * Do Logitech PS2++ / PS2T++ magic init. */ if (psmouse->type == PSMOUSE_PS2PP) { if (psmouse->model == 97) { /* TouchPad 3 */ set_bit(REL_WHEEL, psmouse->dev.relbit); set_bit(REL_HWHEEL, psmouse->dev.relbit); param[0] = 0x11; param[1] = 0x04; param[2] = 0x68; /* Unprotect RAM */ psmouse_command(psmouse, param, 0x30d1); param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b; /* Enable features */ psmouse_command(psmouse, param, 0x30d1); param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3; /* Enable PS2++ */ psmouse_command(psmouse, param, 0x30d1); param[0] = 0; if (!psmouse_command(psmouse, param, 0x13d1) && param[0] == 0x06 && param[1] == 0x00 && param[2] == 0x14) { psmouse->name = "TouchPad 3"; return PSMOUSE_PS2TPP; } } else { param[0] = param[1] = param[2] = 0; ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */ ps2pp_cmd(psmouse, param, 0xDB); if ((param[0] & 0x78) == 0x48 && (param[1] & 0xf3) == 0xc2 && (param[2] & 3) == ((param[1] >> 2) & 3)) { ps2pp_set_smartscroll(psmouse); return PSMOUSE_PS2PP; } } } return 0; } /* * Logitech magic init. */ int ps2pp_detect(struct psmouse *psmouse) { unsigned char param[4]; param[0] = 0; psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES); psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11); param[1] = 0; psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO); return param[1] != 0 ? ps2pp_detect_model(psmouse, param) : 0; }