On 08/02/2011 12:13 PM, Anirudh Ghayal wrote:
From: Amy Maloche<amalo...@codeaurora.org>

Add support for pm8xx based vibrator to facilitate haptics.
This module uses the ff-memless framework.

Cc: Dmitry Torokhov<dmitry.torok...@gmail.com>
Signed-off-by: Amy Maloche<amalo...@codeaurora.org>
Signed-off-by: Anirudh Ghayal<agha...@codeaurora.org>
---
Changes:
    Addressed Dmitry's comments from the previous RFC submission.
    lkml.org/lkml/2011/2/2/53

  drivers/input/misc/Kconfig           |   12 ++
  drivers/input/misc/Makefile          |    1 +
  drivers/input/misc/pm8xxx-vibrator.c |  309 ++++++++++++++++++++++++++++++++++
  3 files changed, 322 insertions(+), 0 deletions(-)
  create mode 100644 drivers/input/misc/pm8xxx-vibrator.c

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index c9104bb..50b9e1b 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -74,6 +74,18 @@ config INPUT_PCSPKR
          To compile this driver as a module, choose M here: the
          module will be called pcspkr.

+config INPUT_PM8XXX_VIBRATOR
+       tristate "Qualcomm PM8XXX vibrator support"
+       depends on MFD_PM8XXX
+       select INPUT_FF_MEMLESS
+       help
+         This option enables device driver support for the vibrator
+         on Qualcomm PM8xxx chip. This driver supports ff-memless interface
+         from input framework.
+
+         To compile this driver as module, choose M here: the
+         module will be called pm8xxx-vibrator.
+
  config INPUT_SPARCSPKR
        tristate "SPARC Speaker support"
        depends on PCI&&  SPARC64
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 299ad5e..40ebe2b 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_INPUT_PCAP)              += pcap_keys.o
  obj-$(CONFIG_INPUT_PCF50633_PMU)      += pcf50633-input.o
  obj-$(CONFIG_INPUT_PCF8574)           += pcf8574_keypad.o
  obj-$(CONFIG_INPUT_PCSPKR)            += pcspkr.o
+obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR)    += pm8xxx-vibrator.o
  obj-$(CONFIG_INPUT_POWERMATE)         += powermate.o
  obj-$(CONFIG_INPUT_PWM_BEEPER)                += pwm-beeper.o
  obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY)   += pmic8xxx-pwrkey.o
diff --git a/drivers/input/misc/pm8xxx-vibrator.c 
b/drivers/input/misc/pm8xxx-vibrator.c
new file mode 100644
index 0000000..cb2d3ad
--- /dev/null
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -0,0 +1,309 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include<linux/module.h>
+#include<linux/init.h>
+#include<linux/kernel.h>
+#include<linux/errno.h>
+#include<linux/platform_device.h>
+#include<linux/input.h>
+#include<linux/slab.h>
+#include<linux/mfd/pm8xxx/core.h>
+
+#define VIB_DRV                        0x4A
+
+#define VIB_DRV_SEL_MASK       0xf8
+#define VIB_DRV_SEL_SHIFT      0x03
+#define VIB_DRV_EN_MANUAL_MASK 0xfc
+
+#define VIB_MAX_LEVEL_mV       (3100)
+#define VIB_MIN_LEVEL_mV       (1200)
+#define VIB_MAX_LEVELS         (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV)
+
+#define MAX_FF_SPEED           0xff
+
+/*
+ * struct pm8xxx_vib - structure to hold vibrator data
+ * @vib_input_dev: input device supporting force feedback
+ * @vwork: work structure to set the vibration parameters
Anirudh,  It's should be @work?
+ * @dev: device supporting force feedback
+ * @speed: speed of vibration set from userland
+ * @state: state of vibrator
+ * @level: level of vibration to set in the chip
+ * @reg_vib_drv: VIB_DRV register value
+ *
+ */

Thanks
Best Regards
Wanlong Gao
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