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Input: synaptics - switch ForcePad detection to PNP IDs

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According to Synaptics devices with ForcePads use SYN300D and SYN3014 as
PNP IDs, so let's switch from DMI-bases detection scheme to PNP-based
one, which should be more reliable.

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2014-12-29 14:43:44 -08:00
parent 99e14c1e23
commit de4e374b40
2 changed files with 15 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/input/mouse/synaptics.c
View File

@ -194,6 +194,13 @@ static const char * const topbuttonpad_pnp_ids[] = {
NULL
};
/* This list has been kindly provided by Synaptics. */
static const char * const forcepad_pnp_ids[] = {
"SYN300D",
"SYN3014",
NULL
};
/*****************************************************************************
* Synaptics communications functions
****************************************************************************/
@ -605,8 +612,6 @@ static void synaptics_parse_agm(const unsigned char buf[],
}
}
static bool is_forcepad;
static int synaptics_parse_hw_state(const unsigned char buf[],
struct synaptics_data *priv,
struct synaptics_hw_state *hw)
@ -636,7 +641,7 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
hw->left = (buf[0] & 0x01) ? 1 : 0;
hw->right = (buf[0] & 0x02) ? 1 : 0;
if (is_forcepad) {
if (priv->is_forcepad) {
/*
* ForcePads, like Clickpads, use middle button
* bits to report primary button clicks.
@ -1311,29 +1316,11 @@ 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)
@ -1368,6 +1355,12 @@ static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
if (SYN_ID_DISGEST_SUPPORTED(priv->identity))
priv->disable_gesture = true;
/*
* Unfortunately ForcePad capability is not exported over PS/2,
* so we have to resort to checking PNP IDs.
*/
priv->is_forcepad = psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids);
if (synaptics_set_mode(psmouse)) {
psmouse_err(psmouse, "Unable to initialize device.\n");
goto init_fail;

1
drivers/input/mouse/synaptics.h
View File

@ -168,6 +168,7 @@ struct synaptics_data {
unsigned long press_start;
bool press;
bool report_press;
bool is_forcepad;
};
void synaptics_module_init(void);