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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-09-02 20:49:18 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-10-11 22:34:42 +0400 |
| commit | aa972409951e0675e07918620427517cad5090e0 (patch) | |
| tree | bcb20a458d327b5f242b139bc1af125097784c29 | |
| parent | 9d93551188069a0a21e664b4bfc89ed4a6df1903 (diff) | |
| download | linux-aa972409951e0675e07918620427517cad5090e0.tar.xz | |
Input: synaptics - gate forcepad support by DMI check
Unfortunately, ForcePad capability is not actually exported over PS/2, so
we have to resort to DMI checks.
Cc: stable@vger.kernel.org
Reported-by: Nicole Faerber <nicole.faerber@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/mouse/synaptics.c | 22 | ||||
| -rw-r--r-- | drivers/input/mouse/synaptics.h | 8 |
2 files changed, 23 insertions, 7 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 6394d9b5bfd3..9031a0a28ea4 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -607,6 +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) @@ -636,7 +638,7 @@ 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 (SYN_CAP_FORCEPAD(priv->ext_cap_0c)) { + if (is_forcepad) { /* * ForcePads, like Clickpads, use middle button * bits to report primary button clicks. @@ -1667,11 +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) diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h index fb2e076738ae..1bd01f21783b 100644 --- a/drivers/input/mouse/synaptics.h +++ b/drivers/input/mouse/synaptics.h @@ -77,12 +77,9 @@ * for noise. * 2 0x08 image sensor image sensor tracks 5 fingers, but only * reports 2. + * 2 0x01 uniform clickpad whole clickpad moves instead of being + * hinged at the top. * 2 0x20 report min query 0x0f gives min coord reported - * 2 0x80 forcepad forcepad is a variant of clickpad that - * does not have physical buttons but rather - * uses pressure above certain threshold to - * report primary clicks. Forcepads also have - * clickpad bit set. */ #define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button ClickPad */ #define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button ClickPad */ @@ -91,7 +88,6 @@ #define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & 0x080000) #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400) #define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & 0x000800) -#define SYN_CAP_FORCEPAD(ex0c) ((ex0c) & 0x008000) /* synaptics modes query bits */ #define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7)) |