Re: [PATCH] input: add MELFAS mms144 touchscreen driver

2012-12-14 Thread Nikolay Epifanov 
On 15.12.2012 05:46, Joonyoung Shim wrote:
> Hi,
> 
> 2012년 12월 13일 목요일에 Nikolay Epifanov님이 작성:
> 
> This is an initial driver for MELFAS touchscreen chip mms144.
> 
> Signed-off-by: Nikolay Epifanov 
> ---
> I don't know whether single driver could be used for both mms114 and
> mms144.
> Couldn't find datasheets for any of them.
> 
> 
> The touch data process logic of this driver is almost same with it of
> mms114 driver and offset of many registers is also same. I think you can
> merge this to mms114 driver.
> 
> Thanks.
> 
> 
> There are two firmwares available under redistribution license from
> AOSP tree:
> for FPCB revisions 3.2 and 3.1. Not sure if those are Melfas original
> or modified by Samsung. (Just for reference: they are
> mms144_ts_rev3*.fw at
> 
> https://android.googlesource.com/device/samsung/tuna/+/214d003a47e7fe2962df667c5d65bce92a21a40e/
> 
> mux_fw_flash(bool) from platform data switches pins between
> I2C<->GPIO modes.
> 
> Driver has been tested on Samsung Galaxy Nexus except suspend/resume.
> 
> Applied on
> git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
> 
> branch next.
> 
>   drivers/input/touchscreen/Kconfig  |   14 +
>   drivers/input/touchscreen/Makefile |1 +
>   drivers/input/touchscreen/mms144.c |  821
> 
>   include/linux/i2c/mms144.h |   34 ++
>   4 files changed, 870 insertions(+)
> 
> diff --git a/drivers/input/touchscreen/Kconfig
> b/drivers/input/touchscreen/Kconfig
> index b93b598..78d9cd3 100644
> --- a/drivers/input/touchscreen/Kconfig
> +++ b/drivers/input/touchscreen/Kconfig
> @@ -369,6 +369,20 @@ config TOUCHSCREEN_MMS114
>To compile this driver as a module, choose M here: the
>module will be called mms114.
> 
> +config TOUCHSCREEN_MMS144
> +   tristate "MELFAS MMS144 touchscreen"
> +   depends on I2C
> +   help
> + Say Y here if you have the MELFAS MMS144 touchscreen
> controller
> + chip in your system.
> + Such kind of chip can be found in Samsung Galaxy Nexus
> + touchscreens.
> +
> + If unsure, say N.
> +
> + To compile this driver as a module, choose M here: the
> + module will be called mms144.
> +
>   config TOUCHSCREEN_MTOUCH
>  tristate "MicroTouch serial touchscreens"
>  select SERIO
> diff --git a/drivers/input/touchscreen/Makefile
> b/drivers/input/touchscreen/Makefile
> index 5f949c0..cfbe87c 100644
> --- a/drivers/input/touchscreen/Makefile
> +++ b/drivers/input/touchscreen/Makefile
> @@ -39,6 +39,7 @@ obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o
>   obj-$(CONFIG_TOUCHSCREEN_MCS5000)  += mcs5000_ts.o
>   obj-$(CONFIG_TOUCHSCREEN_MIGOR)+= migor_ts.o
>   obj-$(CONFIG_TOUCHSCREEN_MMS114)   += mms114.o
> +obj-$(CONFIG_TOUCHSCREEN_MMS144)   += mms144.o
>   obj-$(CONFIG_TOUCHSCREEN_MTOUCH)   += mtouch.o
>   obj-$(CONFIG_TOUCHSCREEN_MK712)+= mk712.o
>   obj-$(CONFIG_TOUCHSCREEN_HP600)+= hp680_ts_input.o
> diff --git a/drivers/input/touchscreen/mms144.c
> b/drivers/input/touchscreen/mms144.c
> new file mode 100644
> index 000..3bb84d0
> --- /dev/null
> +++ b/drivers/input/touchscreen/mms144.c
> @@ -0,0 +1,821 @@
> +/*
> + * mms144.c - Touchscreen driver for Melfas MMS144 touch controllers
> + *
> + * Copyright (C) 2011 Google Inc.
> + * Author: Dima Zavin 
> + * Simon Wilson 
> + * Copyright (C) 2012 Nikolay Epifanov 
> + *
> + * ISP reflashing code based on original code from Melfas.
> + *
> + * This program is free software; you can redistribute  it and/or
> modify it
> + * under  the terms of  the GNU General  Public License as
> published by the
> + * Free Software Foundation;  either version 2 of the  License, or
> (at your
> + * option) any later version.
> + *
> + */
> +
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +#include 
> +
> +#define MAX_FINGERS10
> +#define MAX_WIDTH  30
> +#define MAX_PRESSURE   255
> +#define FINGER_EVENT_SZ6
> +
> +/* Registers */
> +#define MMS_MODE_CONTROL   0x01
> +#define MMS_XYRES_HI   0x02
> +#define MMS_XRES_LO0x03
> +#define MMS_YRES_LO0x04
> +
> +#define MMS_INPUT_EVENT_PKT_SZ 0x0F
> +#define MMS_INPUT_EVENT0

Re: [PATCH] input: add MELFAS mms144 touchscreen driver

2012-12-14 Thread Nikolay Epifanov 
On 15.12.2012 05:46, Joonyoung Shim wrote:
 Hi,
 
 2012년 12월 13일 목요일에 Nikolay Epifanov님이 작성:
 
 This is an initial driver for MELFAS touchscreen chip mms144.
 
 Signed-off-by: Nikolay Epifanov nik.epifa...@gmail.com
 ---
 I don't know whether single driver could be used for both mms114 and
 mms144.
 Couldn't find datasheets for any of them.
 
 
 The touch data process logic of this driver is almost same with it of
 mms114 driver and offset of many registers is also same. I think you can
 merge this to mms114 driver.
 
 Thanks.
 
 
 There are two firmwares available under redistribution license from
 AOSP tree:
 for FPCB revisions 3.2 and 3.1. Not sure if those are Melfas original
 or modified by Samsung. (Just for reference: they are
 mms144_ts_rev3*.fw at
 
 https://android.googlesource.com/device/samsung/tuna/+/214d003a47e7fe2962df667c5d65bce92a21a40e/
 
 mux_fw_flash(bool) from platform data switches pins between
 I2C-GPIO modes.
 
 Driver has been tested on Samsung Galaxy Nexus except suspend/resume.
 
 Applied on
 git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
 http://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
 branch next.
 
   drivers/input/touchscreen/Kconfig  |   14 +
   drivers/input/touchscreen/Makefile |1 +
   drivers/input/touchscreen/mms144.c |  821
 
   include/linux/i2c/mms144.h |   34 ++
   4 files changed, 870 insertions(+)
 
 diff --git a/drivers/input/touchscreen/Kconfig
 b/drivers/input/touchscreen/Kconfig
 index b93b598..78d9cd3 100644
 --- a/drivers/input/touchscreen/Kconfig
 +++ b/drivers/input/touchscreen/Kconfig
 @@ -369,6 +369,20 @@ config TOUCHSCREEN_MMS114
To compile this driver as a module, choose M here: the
module will be called mms114.
 
 +config TOUCHSCREEN_MMS144
 +   tristate MELFAS MMS144 touchscreen
 +   depends on I2C
 +   help
 + Say Y here if you have the MELFAS MMS144 touchscreen
 controller
 + chip in your system.
 + Such kind of chip can be found in Samsung Galaxy Nexus
 + touchscreens.
 +
 + If unsure, say N.
 +
 + To compile this driver as a module, choose M here: the
 + module will be called mms144.
 +
   config TOUCHSCREEN_MTOUCH
  tristate MicroTouch serial touchscreens
  select SERIO
 diff --git a/drivers/input/touchscreen/Makefile
 b/drivers/input/touchscreen/Makefile
 index 5f949c0..cfbe87c 100644
 --- a/drivers/input/touchscreen/Makefile
 +++ b/drivers/input/touchscreen/Makefile
 @@ -39,6 +39,7 @@ obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o
   obj-$(CONFIG_TOUCHSCREEN_MCS5000)  += mcs5000_ts.o
   obj-$(CONFIG_TOUCHSCREEN_MIGOR)+= migor_ts.o
   obj-$(CONFIG_TOUCHSCREEN_MMS114)   += mms114.o
 +obj-$(CONFIG_TOUCHSCREEN_MMS144)   += mms144.o
   obj-$(CONFIG_TOUCHSCREEN_MTOUCH)   += mtouch.o
   obj-$(CONFIG_TOUCHSCREEN_MK712)+= mk712.o
   obj-$(CONFIG_TOUCHSCREEN_HP600)+= hp680_ts_input.o
 diff --git a/drivers/input/touchscreen/mms144.c
 b/drivers/input/touchscreen/mms144.c
 new file mode 100644
 index 000..3bb84d0
 --- /dev/null
 +++ b/drivers/input/touchscreen/mms144.c
 @@ -0,0 +1,821 @@
 +/*
 + * mms144.c - Touchscreen driver for Melfas MMS144 touch controllers
 + *
 + * Copyright (C) 2011 Google Inc.
 + * Author: Dima Zavin d...@android.com
 + * Simon Wilson simonwil...@google.com
 + * Copyright (C) 2012 Nikolay Epifanov nik.epifa...@gmail.com
 + *
 + * ISP reflashing code based on original code from Melfas.
 + *
 + * This program is free software; you can redistribute  it and/or
 modify it
 + * under  the terms of  the GNU General  Public License as
 published by the
 + * Free Software Foundation;  either version 2 of the  License, or
 (at your
 + * option) any later version.
 + *
 + */
 +
 +#include linux/completion.h
 +#include linux/delay.h
 +#include linux/firmware.h
 +#include linux/gpio.h
 +#include linux/i2c.h
 +#include linux/i2c/mms144.h
 +#include linux/init.h
 +#include linux/input.h
 +#include linux/input/mt.h
 +#include linux/interrupt.h
 +#include linux/irq.h
 +#include linux/module.h
 +#include linux/mutex.h
 +#include linux/slab.h
 +#include linux/unaligned/le_struct.h
 +
 +#define MAX_FINGERS10
 +#define MAX_WIDTH  30
 +#define MAX_PRESSURE   255
 +#define FINGER_EVENT_SZ6
 +
 +/* Registers */
 +#define MMS_MODE_CONTROL   0x01
 +#define MMS_XYRES_HI   0x02