From: Cypress Semiconductor Corporation <[email protected]> Original code contributed by Cypress Semiconductor Corporation, modified by Kamal Mostafa.
BugLink: http://launchpad.net/bugs/978807 Signed-off-by: Kamal Mostafa <[email protected]> Signed-off-by: Mario Limonciello <[email protected]> Signed-off-by: Tim Gardner <[email protected]> --- drivers/input/mouse/Kconfig | 10 +++++++++ drivers/input/mouse/Makefile | 1 + drivers/input/mouse/psmouse-base.c | 40 ++++++++++++++++++++++++++++++++++++ drivers/input/mouse/psmouse.h | 2 ++ 4 files changed, 53 insertions(+) diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index cd6268c..88954dd 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -68,6 +68,16 @@ config MOUSE_PS2_SYNAPTICS If unsure, say Y. +config MOUSE_PS2_CYPRESS + bool "Cypress PS/2 mouse protocol extension" if EXPERT + default y + depends on MOUSE_PS2 + help + Say Y here if you have a Cypress PS/2 Trackpad connected to + your system. + + If unsure, say Y. + config MOUSE_PS2_LIFEBOOK bool "Fujitsu Lifebook PS/2 mouse protocol extension" if EXPERT default y diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile index 46ba755..323e352 100644 --- a/drivers/input/mouse/Makefile +++ b/drivers/input/mouse/Makefile @@ -32,3 +32,4 @@ psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o +psmouse-$(CONFIG_MOUSE_PS2_CYPRESS) += cypress_ps2.o diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 22fe254..32c06e7 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -23,6 +23,7 @@ #include <linux/init.h> #include <linux/libps2.h> #include <linux/mutex.h> +#include <linux/sched.h> #include "psmouse.h" #include "synaptics.h" @@ -34,6 +35,7 @@ #include "touchkit_ps2.h" #include "elantech.h" #include "sentelic.h" +#include "cypress_ps2.h" #define DRIVER_DESC "PS/2 mouse driver" @@ -321,6 +323,13 @@ static irqreturn_t psmouse_interrupt(struct serio *serio, if (psmouse->state <= PSMOUSE_RESYNCING) goto out; + /* For Cypress Trackpad to read some special data more than 6 bytes. */ + if (psmouse->state == PSMOUSE_CMD_CYTP) { + psmouse->packet[psmouse->pktcnt++] = data; + wake_up(&psmouse->ps2dev.wait); + goto out; + } + if (psmouse->state == PSMOUSE_ACTIVATED && psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) { psmouse_info(psmouse, "%s at %s lost synchronization, throwing %d bytes away.\n", @@ -759,6 +768,28 @@ static int psmouse_extensions(struct psmouse *psmouse, } /* + * Try Cypress Trackpad. + * Must try it before Finger Sensing Pad because Finger Sensing Pad probe + * upsets some modules of Cypress Trackpads. + */ + if (max_proto > PSMOUSE_IMEX && + cypress_detect(psmouse, set_properties) == 0) { + if (cypress_supported()) { + if (cypress_init(psmouse) == 0) + return PSMOUSE_CYPRESS; + + /* + * Finger Sensing Pad probe upsets some modules of + * Cypress Trackpad, must avoid Finger Sensing Pad + * probe if Cypress Trackpad device detected. + */ + return PSMOUSE_PS2; + } + + max_proto = PSMOUSE_IMEX; + } + +/* * Try ALPS TouchPad */ if (max_proto > PSMOUSE_IMEX) { @@ -896,6 +927,15 @@ static const struct psmouse_protocol psmouse_protocols[] = { .alias = "thinkps", .detect = thinking_detect, }, +#ifdef CONFIG_MOUSE_PS2_CYPRESS + { + .type = PSMOUSE_CYPRESS, + .name = "CyPS/2", + .alias = "cypress", + .detect = cypress_detect, + .init = cypress_init, + }, +#endif { .type = PSMOUSE_GENPS, .name = "GenPS/2", diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h index fe1df23..054893f 100644 --- a/drivers/input/mouse/psmouse.h +++ b/drivers/input/mouse/psmouse.h @@ -26,6 +26,7 @@ enum psmouse_state { PSMOUSE_INITIALIZING, PSMOUSE_RESYNCING, PSMOUSE_CMD_MODE, + PSMOUSE_CMD_CYTP, /* Cypress Trackpad detecting and initializing state. */ PSMOUSE_ACTIVATED, }; @@ -95,6 +96,7 @@ enum psmouse_type { PSMOUSE_ELANTECH, PSMOUSE_FSP, PSMOUSE_SYNAPTICS_RELATIVE, + PSMOUSE_CYPRESS, PSMOUSE_AUTO /* This one should always be last */ }; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
