diff options
Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r-- | drivers/input/mouse/synaptics.c | 105 |
1 files changed, 75 insertions, 30 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index e8573c68f77e..9031a0a28ea4 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -185,18 +185,6 @@ static const char * const topbuttonpad_pnp_ids[] = { 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 ****************************************************************************/ @@ -362,7 +350,8 @@ 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)) { + if (psmouse_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; @@ -618,6 +607,8 @@ static void synaptics_parse_agm(const unsigned char buf[], priv->agm_pending = true; } +static bool is_forcepad; + static int synaptics_parse_hw_state(const unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) @@ -629,10 +620,61 @@ static int synaptics_parse_hw_state(const unsigned char buf[], ((buf[0] & 0x04) >> 1) | ((buf[3] & 0x04) >> 2)); + if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || + SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && + hw->w == 2) { + synaptics_parse_agm(buf, priv, hw); + return 1; + } + + hw->x = (((buf[3] & 0x10) << 8) | + ((buf[1] & 0x0f) << 8) | + buf[4]); + hw->y = (((buf[3] & 0x20) << 7) | + ((buf[1] & 0xf0) << 4) | + buf[5]); + hw->z = buf[2]; + hw->left = (buf[0] & 0x01) ? 1 : 0; hw->right = (buf[0] & 0x02) ? 1 : 0; - if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { + if (is_forcepad) { + /* + * ForcePads, like Clickpads, use middle button + * bits to report primary button clicks. + * Unfortunately they report primary button not + * only when user presses on the pad above certain + * threshold, but also when there are more than one + * finger on the touchpad, which interferes with + * out multi-finger gestures. + */ + if (hw->z == 0) { + /* No contacts */ + priv->press = priv->report_press = false; + } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { + /* + * Single-finger touch with pressure above + * the threshold. If pressure stays long + * enough, we'll start reporting primary + * button. We rely on the device continuing + * sending data even if finger does not + * move. + */ + if (!priv->press) { + priv->press_start = jiffies; + priv->press = true; + } else if (time_after(jiffies, + priv->press_start + + msecs_to_jiffies(50))) { + priv->report_press = true; + } + } else { + priv->press = false; + } + + hw->left = priv->report_press; + + } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { /* * Clickpad's button is transmitted as middle button, * however, since it is primary button, we will report @@ -651,21 +693,6 @@ static int synaptics_parse_hw_state(const unsigned char buf[], hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; } - if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || - SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && - hw->w == 2) { - synaptics_parse_agm(buf, priv, hw); - return 1; - } - - hw->x = (((buf[3] & 0x10) << 8) | - ((buf[1] & 0x0f) << 8) | - buf[4]); - hw->y = (((buf[3] & 0x20) << 7) | - ((buf[1] & 0xf0) << 4) | - buf[5]); - hw->z = buf[2]; - if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && ((buf[0] ^ buf[3]) & 0x02)) { switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { @@ -1456,7 +1483,7 @@ static void set_input_params(struct psmouse *psmouse, if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); - if (matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) + if (psmouse_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); @@ -1642,11 +1669,29 @@ static const struct dmi_system_id __initconst cr48_dmi_table[] = { { } }; +static const struct dmi_system_id forcepad_dmi_table[] __initconst = { +#if defined(CONFIG_DMI) && defined(CONFIG_X86) + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 G1"), + }, + }, +#endif + { } +}; + void __init synaptics_module_init(void) { impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); broken_olpc_ec = dmi_check_system(olpc_dmi_table); cr48_profile_sensor = dmi_check_system(cr48_dmi_table); + + /* + * Unfortunately ForcePad capability is not exported over PS/2, + * so we have to resort to checking DMI. + */ + is_forcepad = dmi_check_system(forcepad_dmi_table); } static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |