diff options
Diffstat (limited to 'drivers/input/mouse/synaptics.c')
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 230 |
1 files changed, 210 insertions, 20 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 8081a0a5d60..ef9e0b8a9aa 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -40,21 +40,32 @@ * Note that newer firmware allows querying device for maximum useable * coordinates. */ +#define XMIN 0 +#define XMAX 6143 +#define YMIN 0 +#define YMAX 6143 #define XMIN_NOMINAL 1472 #define XMAX_NOMINAL 5472 #define YMIN_NOMINAL 1408 #define YMAX_NOMINAL 4448 +/* Size in bits of absolute position values reported by the hardware */ +#define ABS_POS_BITS 13 + /* - * Synaptics touchpads report the y coordinate from bottom to top, which is - * opposite from what userspace expects. - * This function is used to invert y before reporting. + * These values should represent the absolute maximum value that will + * be reported for a positive position value. Some Synaptics firmware + * uses this value to indicate a finger near the edge of the touchpad + * whose precise position cannot be determined. + * + * At least one touchpad is known to report positions in excess of this + * value which are actually negative values truncated to the 13-bit + * reporting range. These values have never been observed to be lower + * than 8184 (i.e. -8), so we treat all values greater than 8176 as + * negative and any other value as positive. */ -static int synaptics_invert_y(int y) -{ - return YMAX_NOMINAL + YMIN_NOMINAL - y; -} - +#define X_MAX_POSITIVE 8176 +#define Y_MAX_POSITIVE 8176 /***************************************************************************** * Stuff we need even when we do not want native Synaptics support @@ -106,12 +117,98 @@ void synaptics_reset(struct psmouse *psmouse) } #ifdef CONFIG_MOUSE_PS2_SYNAPTICS +struct min_max_quirk { + const char * const *pnp_ids; + int x_min, x_max, y_min, y_max; +}; + +static const struct min_max_quirk min_max_pnpid_table[] = { + { + (const char * const []){"LEN0033", NULL}, + 1024, 5052, 2258, 4832 + }, + { + (const char * const []){"LEN0035", "LEN0042", NULL}, + 1232, 5710, 1156, 4696 + }, + { + (const char * const []){"LEN0034", "LEN0036", "LEN2002", + "LEN2004", NULL}, + 1024, 5112, 2024, 4832 + }, + { + (const char * const []){"LEN2001", NULL}, + 1024, 5022, 2508, 4832 + }, + { } +}; + +/* This list has been kindly provided by Synaptics. */ +static const char * const topbuttonpad_pnp_ids[] = { + "LEN0017", + "LEN0018", + "LEN0019", + "LEN0023", + "LEN002A", + "LEN002B", + "LEN002C", + "LEN002D", + "LEN002E", + "LEN0033", /* Helix */ + "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ + "LEN0035", /* X240 */ + "LEN0036", /* T440 */ + "LEN0037", + "LEN0038", + "LEN0041", + "LEN0042", /* Yoga */ + "LEN0045", + "LEN0046", + "LEN0047", + "LEN0048", + "LEN0049", + "LEN2000", + "LEN2001", /* Edge E431 */ + "LEN2002", /* Edge E531 */ + "LEN2003", + "LEN2004", /* L440 */ + "LEN2005", + "LEN2006", + "LEN2007", + "LEN2008", + "LEN2009", + "LEN200A", + "LEN200B", + NULL +}; + +static bool matches_pnp_id(struct psmouse *psmouse, const char * const ids[]) +{ + int i; + + if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4)) + for (i = 0; ids[i]; i++) + if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i])) + return true; + + return false; +} /***************************************************************************** * Synaptics communications functions ****************************************************************************/ /* + * Synaptics touchpads report the y coordinate from bottom to top, which is + * opposite from what userspace expects. + * This function is used to invert y before reporting. + */ +static int synaptics_invert_y(int y) +{ + return YMAX_NOMINAL + YMIN_NOMINAL - y; +} + +/* * Send a command to the synpatics touchpad by special commands */ static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) @@ -139,6 +236,35 @@ static int synaptics_model_id(struct psmouse *psmouse) } /* + * Read the board id from the touchpad + * The board id is encoded in the "QUERY MODES" response + */ +static int synaptics_board_id(struct psmouse *psmouse) +{ + struct synaptics_data *priv = psmouse->private; + unsigned char bid[3]; + + if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) + return -1; + priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; + return 0; +} + +/* + * Read the firmware id from the touchpad + */ +static int synaptics_firmware_id(struct psmouse *psmouse) +{ + struct synaptics_data *priv = psmouse->private; + unsigned char fwid[3]; + + if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) + return -1; + priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; + return 0; +} + +/* * Read the capability-bits from the touchpad * see also the SYN_CAP_* macros */ @@ -215,10 +341,12 @@ static int synaptics_identify(struct psmouse *psmouse) * Read touchpad resolution and maximum reported coordinates * Resolution is left zero if touchpad does not support the query */ + static int synaptics_resolution(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; unsigned char resp[3]; + int i; if (SYN_ID_MAJOR(priv->identity) < 4) return 0; @@ -230,6 +358,16 @@ static int synaptics_resolution(struct psmouse *psmouse) } } + for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { + if (matches_pnp_id(psmouse, min_max_pnpid_table[i].pnp_ids)) { + priv->x_min = min_max_pnpid_table[i].x_min; + priv->x_max = min_max_pnpid_table[i].x_max; + priv->y_min = min_max_pnpid_table[i].y_min; + priv->y_max = min_max_pnpid_table[i].y_max; + return 0; + } + } + if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { @@ -261,6 +399,10 @@ static int synaptics_query_hardware(struct psmouse *psmouse) return -1; if (synaptics_model_id(psmouse)) return -1; + if (synaptics_firmware_id(psmouse)) + return -1; + if (synaptics_board_id(psmouse)) + return -1; if (synaptics_capability(psmouse)) return -1; if (synaptics_resolution(psmouse)) @@ -274,7 +416,8 @@ static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) static unsigned char param = 0xc8; struct synaptics_data *priv = psmouse->private; - if (!SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) + if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || + SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) return 0; if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) @@ -554,6 +697,22 @@ static int synaptics_parse_hw_state(const unsigned char buf[], hw->right = (buf[0] & 0x02) ? 1 : 0; } + /* + * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE + * is used by some firmware to indicate a finger at the edge of + * the touchpad whose precise position cannot be determined, so + * convert these values to the maximum axis value. + */ + if (hw->x > X_MAX_POSITIVE) + hw->x -= 1 << ABS_POS_BITS; + else if (hw->x == X_MAX_POSITIVE) + hw->x = XMAX; + + if (hw->y > Y_MAX_POSITIVE) + hw->y -= 1 << ABS_POS_BITS; + else if (hw->y == Y_MAX_POSITIVE) + hw->y = YMAX; + return 0; } @@ -651,11 +810,13 @@ static void synaptics_report_mt_data(struct psmouse *psmouse, default: /* * If the finger slot contained in SGM is valid, and either - * hasn't changed, or is new, then report SGM in MTB slot 0. + * hasn't changed, or is new, or the old SGM has now moved to + * AGM, then report SGM in MTB slot 0. * Otherwise, empty MTB slot 0. */ if (mt_state->sgm != -1 && - (mt_state->sgm == old->sgm || old->sgm == -1)) + (mt_state->sgm == old->sgm || + old->sgm == -1 || mt_state->agm == old->sgm)) synaptics_report_slot(dev, 0, sgm); else synaptics_report_slot(dev, 0, NULL); @@ -664,9 +825,31 @@ static void synaptics_report_mt_data(struct psmouse *psmouse, * If the finger slot contained in AGM is valid, and either * hasn't changed, or is new, then report AGM in MTB slot 1. * Otherwise, empty MTB slot 1. + * + * However, in the case where the AGM is new, make sure that + * that it is either the same as the old SGM, or there was no + * SGM. + * + * Otherwise, if the SGM was just 1, and the new AGM is 2, then + * the new AGM will keep the old SGM's tracking ID, which can + * cause apparent drumroll. This happens if in the following + * valid finger sequence: + * + * Action SGM AGM (MTB slot:Contact) + * 1. Touch contact 0 (0:0) + * 2. Touch contact 1 (0:0, 1:1) + * 3. Lift contact 0 (1:1) + * 4. Touch contacts 2,3 (0:2, 1:3) + * + * In step 4, contact 3, in AGM must not be given the same + * tracking ID as contact 1 had in step 3. To avoid this, + * the first agm with contact 3 is dropped and slot 1 is + * invalidated (tracking ID = -1). */ if (mt_state->agm != -1 && - (mt_state->agm == old->agm || old->agm == -1)) + (mt_state->agm == old->agm || + (old->agm == -1 && + (old->sgm == -1 || mt_state->agm == old->sgm)))) synaptics_report_slot(dev, 1, agm); else synaptics_report_slot(dev, 1, NULL); @@ -1149,8 +1332,10 @@ static void set_abs_position_params(struct input_dev *dev, input_abs_set_res(dev, y_code, priv->y_res); } -static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) +static void set_input_params(struct psmouse *psmouse, + struct synaptics_data *priv) { + struct input_dev *dev = psmouse->dev; int i; /* Things that apply to both modes */ @@ -1176,11 +1361,11 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { - input_mt_init_slots(dev, 2); set_abs_position_params(dev, priv, ABS_MT_POSITION_X, ABS_MT_POSITION_Y); /* Image sensors can report per-contact pressure */ input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); + input_mt_init_slots(dev, 2, INPUT_MT_POINTER); /* Image sensors can signal 4 and 5 finger clicks */ __set_bit(BTN_TOOL_QUADTAP, dev->keybit); @@ -1188,7 +1373,7 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { /* Non-image sensors with AGM use semi-mt */ __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); - input_mt_init_slots(dev, 2); + input_mt_init_slots(dev, 2, 0); set_abs_position_params(dev, priv, ABS_MT_POSITION_X, ABS_MT_POSITION_Y); } @@ -1219,6 +1404,8 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); + if (matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) + __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); /* Clickpads report only left button */ __clear_bit(BTN_RIGHT, dev->keybit); __clear_bit(BTN_MIDDLE, dev->keybit); @@ -1284,6 +1471,7 @@ static int synaptics_reconnect(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; struct synaptics_data old_priv = *priv; + unsigned char param[2]; int retry = 0; int error; @@ -1299,6 +1487,7 @@ static int synaptics_reconnect(struct psmouse *psmouse) */ ssleep(1); } + ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); error = synaptics_detect(psmouse, 0); } while (error && ++retry < 3); @@ -1336,7 +1525,7 @@ static int synaptics_reconnect(struct psmouse *psmouse) static bool impaired_toshiba_kbc; -static const struct dmi_system_id __initconst toshiba_dmi_table[] = { +static const struct dmi_system_id toshiba_dmi_table[] __initconst = { #if defined(CONFIG_DMI) && defined(CONFIG_X86) { /* Toshiba Satellite */ @@ -1375,7 +1564,7 @@ static const struct dmi_system_id __initconst toshiba_dmi_table[] = { static bool broken_olpc_ec; -static const struct dmi_system_id __initconst olpc_dmi_table[] = { +static const struct dmi_system_id olpc_dmi_table[] __initconst = { #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) { /* OLPC XO-1 or XO-1.5 */ @@ -1434,13 +1623,14 @@ static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; psmouse_info(psmouse, - "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n", + "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", SYN_ID_MODEL(priv->identity), SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), priv->model_id, - priv->capabilities, priv->ext_cap, priv->ext_cap_0c); + priv->capabilities, priv->ext_cap, priv->ext_cap_0c, + priv->board_id, priv->firmware_id); - set_input_params(psmouse->dev, priv); + set_input_params(psmouse, priv); /* * Encode touchpad model so that it can be used to set |