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Input: synaptics - retrieve the extended capabilities in query $10

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Newer Synaptics touchpads need to get information from the query $10.
Retrieve it if available.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Benjamin Tissoires
2015-03-08 22:34:03 -07:00
committed by Dmitry Torokhov
parent b57a7128be
commit 06aa374bc7
2 changed files with 43 additions and 3 deletions
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23
drivers/input/mouse/synaptics.c
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@@ -241,11 +241,24 @@ static int synaptics_model_id(struct psmouse *psmouse)
return 0;
}
static int synaptics_more_extended_queries(struct psmouse *psmouse)
{
struct synaptics_data *priv = psmouse->private;
unsigned char buf[3];
if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf))
return -1;
priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2];
return 0;
}
/*
* Read the board id from the touchpad
* Read the board id and the "More Extended Queries" from the touchpad
* The board id is encoded in the "QUERY MODES" response
*/
static int synaptics_board_id(struct psmouse *psmouse)
static int synaptics_query_modes(struct psmouse *psmouse)
{
struct synaptics_data *priv = psmouse->private;
unsigned char bid[3];
@@ -257,6 +270,10 @@ static int synaptics_board_id(struct psmouse *psmouse)
if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
return -1;
priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
if (SYN_MEXT_CAP_BIT(bid[0]))
return synaptics_more_extended_queries(psmouse);
return 0;
}
@@ -446,7 +463,7 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
return -1;
if (synaptics_firmware_id(psmouse))
return -1;
if (synaptics_board_id(psmouse))
if (synaptics_query_modes(psmouse))
return -1;
if (synaptics_capability(psmouse))
return -1;