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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Browse Source 
Pull input updates from Dmitry Torokhov:
 "A few new haptic/button drivers, a rudimentary support for laptops
  using FocalTech touchpads; xpad driver will bind to more devices, and
  a few other driver fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: soc_button_array - convert to platform bus
  Input: palmas-pwrbutton - fix typo in the license string
  Input: palmas-pwrbutton - use IRQF_ONESHOT
  Input: psmouse - add support for detecting FocalTech PS/2 touchpads
  Input: psmouse - add psmouse_matches_pnp_id helper function
  Input: joystick - use ktime for measuring timing
  Input: add haptic driver on max77693
  Input: introduce palmas-pwrbutton
  Input: add support for the DRV2667 haptic driver
  Input: xpad - sync device IDs with xboxdrv
  Input: xpad - add VID/PID for Razer Sabertooth
  Input: cros_ec_keyb - optimize ghosting algorithm
  Input: drv260x - fix binding document
  Input: drv260x - add check for ERM mode and LRA Libraries
  Input: drv260x - remove unused defines
  Input: drv260x - add TI drv260x haptics driver
This commit is contained in:
Linus Torvalds 2014-10-07 21:26:52 -04:00
commit 1e345ac686
24 changed files with 2468 additions and 109 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
Documentation/devicetree/bindings/input/ti,drv260x.txt Normal file
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@ -0,0 +1,50 @@
* Texas Instruments - drv260x Haptics driver family
Required properties:
- compatible - One of:
"ti,drv2604" - DRV2604
"ti,drv2605" - DRV2605
"ti,drv2605l" - DRV2605L
- reg - I2C slave address
- vbat-supply - Required supply regulator
- mode - Power up mode of the chip (defined in include/dt-bindings/input/ti-drv260x.h)
DRV260X_LRA_MODE - Linear Resonance Actuator mode (Piezoelectric)
DRV260X_LRA_NO_CAL_MODE - This is a LRA Mode but there is no calibration
sequence during init. And the device is configured for real
time playback mode (RTP mode).
DRV260X_ERM_MODE - Eccentric Rotating Mass mode (Rotary vibrator)
- library-sel - These are ROM based waveforms pre-programmed into the IC.
This should be set to set the library to use at power up.
(defined in include/dt-bindings/input/ti-drv260x.h)
DRV260X_LIB_EMPTY - Do not use a pre-programmed library
DRV260X_ERM_LIB_A - Pre-programmed Library
DRV260X_ERM_LIB_B - Pre-programmed Library
DRV260X_ERM_LIB_C - Pre-programmed Library
DRV260X_ERM_LIB_D - Pre-programmed Library
DRV260X_ERM_LIB_E - Pre-programmed Library
DRV260X_ERM_LIB_F - Pre-programmed Library
DRV260X_LIB_LRA - Pre-programmed LRA Library
Optional properties:
- enable-gpio - gpio pin to enable/disable the device.
- vib-rated-mv - The rated voltage of the actuator in millivolts.
If this is not set then the value will be defaulted to
3.2 v.
- vib-overdrive-mv - The overdrive voltage of the actuator in millivolts.
If this is not set then the value will be defaulted to
3.2 v.
Example:
haptics: haptics@5a {
compatible = "ti,drv2605l";
reg = <0x5a>;
vbat-supply = <&vbat>;
enable-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
mode = <DRV260X_LRA_MODE>;
library-sel = <DRV260X_LIB_LRA>;
vib-rated-mv = <3200>;
vib-overdriver-mv = <3200>;
}
For more product information please see the link below:
http://www.ti.com/product/drv2605

17
Documentation/devicetree/bindings/input/ti,drv2667.txt Normal file
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@ -0,0 +1,17 @@
* Texas Instruments - drv2667 Haptics driver
Required properties:
- compatible - "ti,drv2667" - DRV2667
- reg - I2C slave address
- vbat-supply - Required supply regulator
Example:
haptics: haptics@59 {
compatible = "ti,drv2667";
reg = <0x59>;
vbat-supply = <&vbat>;
};
For more product information please see the link below:
http://www.ti.com/product/drv2667

36
Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt Normal file
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@ -0,0 +1,36 @@
Texas Instruments Palmas family power button module
This module is part of the Palmas family of PMICs. For more details
about the whole chip see:
Documentation/devicetree/bindings/mfd/palmas.txt.
This module provides a simple power button event via an Interrupt.
Required properties:
- compatible: should be one of the following
- "ti,palmas-pwrbutton": For Palmas compatible power on button
- interrupt-parent: Parent interrupt device, must be handle of palmas node.
- interrupts: Interrupt number of power button submodule on device.
Optional Properties:
- ti,palmas-long-press-seconds: Duration in seconds which the power
button should be kept pressed for Palmas to power off automatically.
NOTE: This depends on OTP support and POWERHOLD signal configuration
on platform. Valid values are 6, 8, 10 and 12.
- ti,palmas-pwron-debounce-milli-seconds: Duration in milliseconds
which the power button should be kept pressed for Palmas to register
a press for debouncing purposes. NOTE: This depends on specific
Palmas variation capability. Valid values are 15, 100, 500 and 1000.
Example:
&palmas {
palmas_pwr_button: pwrbutton {
compatible = "ti,palmas-pwrbutton";
interrupt-parent = <&tps659038>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
ti,palmas-long-press-seconds = <12>;
ti,palmas-pwron-debounce-milli-seconds = <15>;
};
};

2
drivers/acpi/acpi_pnp.c
View File

@ -15,8 +15,6 @@
#include <linux/ctype.h>
static const struct acpi_device_id acpi_pnp_device_ids[] = {
/* soc_button_array */
{"PNP0C40"},
/* pata_isapnp */
{"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */
/* floppy */

41
drivers/input/gameport/gameport.c
View File

@ -23,6 +23,7 @@
#include <linux/workqueue.h>
#include <linux/sched.h> /* HZ */
#include <linux/mutex.h>
#include <linux/timekeeping.h>
/*#include <asm/io.h>*/
@ -30,6 +31,10 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Generic gameport layer");
MODULE_LICENSE("GPL");
static bool use_ktime = true;
module_param(use_ktime, bool, 0400);
MODULE_PARM_DESC(use_ktime, "Use ktime for measuring I/O speed");
/*
* gameport_mutex protects entire gameport subsystem and is taken
* every time gameport port or driver registrered or unregistered.
@ -75,6 +80,38 @@ static unsigned int get_time_pit(void)
*/
static int gameport_measure_speed(struct gameport *gameport)
{
unsigned int i, t, tx;
u64 t1, t2, t3;
unsigned long flags;
if (gameport_open(gameport, NULL, GAMEPORT_MODE_RAW))
return 0;
tx = ~0;
for (i = 0; i < 50; i++) {
local_irq_save(flags);
t1 = ktime_get_ns();
for (t = 0; t < 50; t++)
gameport_read(gameport);
t2 = ktime_get_ns();
t3 = ktime_get_ns();
local_irq_restore(flags);
udelay(i * 10);
t = (t2 - t1) - (t3 - t2);
if (t < tx)
tx = t;
}
gameport_close(gameport);
t = 1000000 * 50;
if (tx)
t /= tx;
return t;
}
static int old_gameport_measure_speed(struct gameport *gameport)
{
#if defined(__i386__)
@ -521,7 +558,9 @@ static void gameport_add_port(struct gameport *gameport)
if (gameport->parent)
gameport->parent->child = gameport;
gameport->speed = gameport_measure_speed(gameport);
gameport->speed = use_ktime ?
gameport_measure_speed(gameport) :
old_gameport_measure_speed(gameport);
list_add_tail(&gameport->node, &gameport_list);

71
drivers/input/joystick/analog.c
View File

@ -36,6 +36,7 @@
#include <linux/gameport.h>
#include <linux/jiffies.h>
#include <linux/timex.h>
#include <linux/timekeeping.h>
#define DRIVER_DESC "Analog joystick and gamepad driver"
@ -43,6 +44,10 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
static bool use_ktime = true;
module_param(use_ktime, bool, 0400);
MODULE_PARM_DESC(use_ktime, "Use ktime for measuring I/O speed");
/*
* Option parsing.
*/
@ -171,6 +176,25 @@ static unsigned long analog_faketime = 0;
#warning Precise timer not defined for this architecture.
#endif
static inline u64 get_time(void)
{
if (use_ktime) {
return ktime_get_ns();
} else {
unsigned int x;
GET_TIME(x);
return x;
}
}
static inline unsigned int delta(u64 x, u64 y)
{
if (use_ktime)
return y - x;
else
return DELTA((unsigned int)x, (unsigned int)y);
}
/*
* analog_decode() decodes analog joystick data and reports input events.
*/
@ -226,7 +250,8 @@ static void analog_decode(struct analog *analog, int *axes, int *initial, int bu
static int analog_cooked_read(struct analog_port *port)
{
struct gameport *gameport = port->gameport;
unsigned int time[4], start, loop, now, loopout, timeout;
u64 time[4], start, loop, now;
unsigned int loopout, timeout;
unsigned char data[4], this, last;
unsigned long flags;
int i, j;
@ -236,7 +261,7 @@ static int analog_cooked_read(struct analog_port *port)
local_irq_save(flags);
gameport_trigger(gameport);
GET_TIME(now);
now = get_time();
local_irq_restore(flags);
start = now;
@ -249,16 +274,16 @@ static int analog_cooked_read(struct analog_port *port)
local_irq_disable();
this = gameport_read(gameport) & port->mask;
GET_TIME(now);
now = get_time();
local_irq_restore(flags);
if ((last ^ this) && (DELTA(loop, now) < loopout)) {
if ((last ^ this) && (delta(loop, now) < loopout)) {
data[i] = last ^ this;
time[i] = now;
i++;
}
} while (this && (i < 4) && (DELTA(start, now) < timeout));
} while (this && (i < 4) && (delta(start, now) < timeout));
this <<= 4;
@ -266,7 +291,7 @@ static int analog_cooked_read(struct analog_port *port)
this |= data[i];
for (j = 0; j < 4; j++)
if (data[i] & (1 << j))
port->axes[j] = (DELTA(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;
port->axes[j] = (delta(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;
}
return -(this != port->mask);
@ -365,31 +390,39 @@ static void analog_close(struct input_dev *dev)
static void analog_calibrate_timer(struct analog_port *port)
{
struct gameport *gameport = port->gameport;
unsigned int i, t, tx, t1, t2, t3;
unsigned int i, t, tx;
u64 t1, t2, t3;
unsigned long flags;
local_irq_save(flags);
GET_TIME(t1);
if (use_ktime) {
port->speed = 1000000;
} else {
local_irq_save(flags);
t1 = get_time();
#ifdef FAKE_TIME
analog_faketime += 830;
analog_faketime += 830;
#endif
mdelay(1);
GET_TIME(t2);
GET_TIME(t3);
local_irq_restore(flags);
mdelay(1);
t2 = get_time();
t3 = get_time();
local_irq_restore(flags);
port->speed = DELTA(t1, t2) - DELTA(t2, t3);
port->speed = delta(t1, t2) - delta(t2, t3);
}
tx = ~0;
for (i = 0; i < 50; i++) {
local_irq_save(flags);
GET_TIME(t1);
for (t = 0; t < 50; t++) { gameport_read(gameport); GET_TIME(t2); }
GET_TIME(t3);
t1 = get_time();
for (t = 0; t < 50; t++) {
gameport_read(gameport);
t2 = get_time();
}
t3 = get_time();
local_irq_restore(flags);
udelay(i);
t = DELTA(t1, t2) - DELTA(t2, t3);
t = delta(t1, t2) - delta(t2, t3);
if (t < tx) tx = t;
}

34
drivers/input/joystick/xpad.c
View File

@ -126,7 +126,9 @@ static const struct xpad_device {
{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
@ -140,10 +142,17 @@ static const struct xpad_device {
{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
{ 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
{ 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
{ 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
@ -156,28 +165,50 @@ static const struct xpad_device {
{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
{ 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
{ 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
{ 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
{ 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
{ 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
{ 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
{ 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
{ 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
};
@ -274,6 +305,9 @@ static struct usb_device_id xpad_table[] = {
XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
XPAD_XBOX360_VENDOR(0x24c6), /* PowerA Controllers */
XPAD_XBOX360_VENDOR(0x1532), /* Razer Sabertooth */
XPAD_XBOX360_VENDOR(0x15e4), /* Numark X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */
{ }
};

92
drivers/input/keyboard/cros_ec_keyb.c
View File

@ -22,6 +22,7 @@
*/
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
@ -38,6 +39,7 @@
* @row_shift: log2 or number of rows, rounded up
* @keymap_data: Matrix keymap data used to convert to keyscan values
* @ghost_filter: true to enable the matrix key-ghosting filter
* @valid_keys: bitmap of existing keys for each matrix column
* @old_kb_state: bitmap of keys pressed last scan
* @dev: Device pointer
* @idev: Input device
@ -49,6 +51,7 @@ struct cros_ec_keyb {
int row_shift;
const struct matrix_keymap_data *keymap_data;
bool ghost_filter;
uint8_t *valid_keys;
uint8_t *old_kb_state;
struct device *dev;
@ -57,39 +60,15 @@ struct cros_ec_keyb {
};
static bool cros_ec_keyb_row_has_ghosting(struct cros_ec_keyb *ckdev,
uint8_t *buf, int row)
{
int pressed_in_row = 0;
int row_has_teeth = 0;
int col, mask;
mask = 1 << row;
for (col = 0; col < ckdev->cols; col++) {
if (buf[col] & mask) {
pressed_in_row++;
row_has_teeth |= buf[col] & ~mask;
if (pressed_in_row > 1 && row_has_teeth) {
/* ghosting */
dev_dbg(ckdev->dev,
"ghost found at: r%d c%d, pressed %d, teeth 0x%x\n",
row, col, pressed_in_row,
row_has_teeth);
return true;
}
}
}
return false;
}
/*
* Returns true when there is at least one combination of pressed keys that
* results in ghosting.
*/
static bool cros_ec_keyb_has_ghosting(struct cros_ec_keyb *ckdev, uint8_t *buf)
{
int row;
int col1, col2, buf1, buf2;
struct device *dev = ckdev->dev;
uint8_t *valid_keys = ckdev->valid_keys;
/*
* Ghosting happens if for any pressed key X there are other keys
@ -103,27 +82,23 @@ static bool cros_ec_keyb_has_ghosting(struct cros_ec_keyb *ckdev, uint8_t *buf)
*
* In this case only X, Y, and Z are pressed, but g appears to be
* pressed too (see Wikipedia).
*
* We can detect ghosting in a single pass (*) over the keyboard state
* by maintaining two arrays. pressed_in_row counts how many pressed
* keys we have found in a row. row_has_teeth is true if any of the
* pressed keys for this row has other pressed keys in its column. If
* at any point of the scan we find that a row has multiple pressed
* keys, and at least one of them is at the intersection with a column
* with multiple pressed keys, we're sure there is ghosting.
* Conversely, if there is ghosting, we will detect such situation for
* at least one key during the pass.
*
* (*) This looks linear in the number of keys, but it's not. We can
* cheat because the number of rows is small.
*/
for (row = 0; row < ckdev->rows; row++)
if (cros_ec_keyb_row_has_ghosting(ckdev, buf, row))
return true;
for (col1 = 0; col1 < ckdev->cols; col1++) {
buf1 = buf[col1] & valid_keys[col1];
for (col2 = col1 + 1; col2 < ckdev->cols; col2++) {
buf2 = buf[col2] & valid_keys[col2];
if (hweight8(buf1 & buf2) > 1) {
dev_dbg(dev, "ghost found at: B[%02d]:0x%02x & B[%02d]:0x%02x",
col1, buf1, col2, buf2);
return true;
}
}
}
return false;
}
/*
* Compares the new keyboard state to the old one and produces key
* press/release events accordingly. The keyboard state is 13 bytes (one byte
@ -222,6 +197,30 @@ static void cros_ec_keyb_close(struct input_dev *dev)
free_irq(ec->irq, ckdev);
}
/*
* Walks keycodes flipping bit in buffer COLUMNS deep where bit is ROW. Used by
* ghosting logic to ignore NULL or virtual keys.
*/
static void cros_ec_keyb_compute_valid_keys(struct cros_ec_keyb *ckdev)
{
int row, col;
int row_shift = ckdev->row_shift;
unsigned short *keymap = ckdev->idev->keycode;
unsigned short code;
BUG_ON(ckdev->idev->keycodesize != sizeof(*keymap));
for (col = 0; col < ckdev->cols; col++) {
for (row = 0; row < ckdev->rows; row++) {
code = keymap[MATRIX_SCAN_CODE(row, col, row_shift)];
if (code && (code != KEY_BATTERY))
ckdev->valid_keys[col] |= 1 << row;
}
dev_dbg(ckdev->dev, "valid_keys[%02d] = 0x%02x\n",
col, ckdev->valid_keys[col]);
}
}
static int cros_ec_keyb_probe(struct platform_device *pdev)
{
struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
@ -242,6 +241,11 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
&ckdev->cols);
if (err)
return err;
ckdev->valid_keys = devm_kzalloc(&pdev->dev, ckdev->cols, GFP_KERNEL);
if (!ckdev->valid_keys)
return -ENOMEM;
ckdev->old_kb_state = devm_kzalloc(&pdev->dev, ckdev->cols, GFP_KERNEL);
if (!ckdev->old_kb_state)
return -ENOMEM;
@ -285,6 +289,8 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
input_set_capability(idev, EV_MSC, MSC_SCAN);
input_set_drvdata(idev, ckdev);
ckdev->idev = idev;
cros_ec_keyb_compute_valid_keys(ckdev);
err = input_register_device(ckdev->idev);
if (err) {
dev_err(dev, "cannot register input device\n");

43
drivers/input/misc/Kconfig
View File

@ -144,6 +144,17 @@ config INPUT_M68K_BEEP
tristate "M68k Beeper support"
depends on M68K
config INPUT_MAX77693_HAPTIC
tristate "MAXIM MAX77693 haptic controller support"
depends on MFD_MAX77693 && PWM
select INPUT_FF_MEMLESS
help
This option enables support for the haptic controller on
MAXIM MAX77693 chip.
To compile this driver as module, choose M here: the
module will be called max77693-haptic.
config INPUT_MAX8925_ONKEY
tristate "MAX8925 ONKEY support"
depends on MFD_MAX8925
@ -451,6 +462,16 @@ config HP_SDC_RTC
Say Y here if you want to support the built-in real time clock
of the HP SDC controller.
config INPUT_PALMAS_PWRBUTTON
tristate "Palmas Power button Driver"
depends on MFD_PALMAS
help
Say Y here if you want to enable power key reporting via the
Palmas family of PMICs.
To compile this driver as a module, choose M here. The module will
be called palmas_pwrbutton.
config INPUT_PCF50633_PMU
tristate "PCF50633 PMU events"
depends on MFD_PCF50633
@ -676,4 +697,26 @@ config INPUT_SOC_BUTTON_ARRAY
To compile this driver as a module, choose M here: the
module will be called soc_button_array.
config INPUT_DRV260X_HAPTICS
tristate "TI DRV260X haptics support"
depends on INPUT && I2C && GPIOLIB
select INPUT_FF_MEMLESS
select REGMAP_I2C
help
Say Y to enable support for the TI DRV260X haptics driver.
To compile this driver as a module, choose M here: the
module will be called drv260x-haptics.
config INPUT_DRV2667_HAPTICS
tristate "TI DRV2667 haptics support"
depends on INPUT && I2C
select INPUT_FF_MEMLESS
select REGMAP_I2C
help
Say Y to enable support for the TI DRV2667 haptics driver.
To compile this driver as a module, choose M here: the
module will be called drv260x-haptics.
endif

4
drivers/input/misc/Makefile
View File

@ -26,6 +26,8 @@ obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
obj-$(CONFIG_INPUT_DA9052_ONKEY) += da9052_onkey.o
obj-$(CONFIG_INPUT_DA9055_ONKEY) += da9055_onkey.o
obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o
obj-$(CONFIG_INPUT_DRV260X_HAPTICS) += drv260x.o
obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o
obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o
obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o
obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o
@ -35,11 +37,13 @@ obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
obj-$(CONFIG_INPUT_MAX77693_HAPTIC) += max77693-haptic.o
obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
obj-$(CONFIG_INPUT_MPU3050) += mpu3050.o
obj-$(CONFIG_INPUT_PALMAS_PWRBUTTON) += palmas-pwrbutton.o
obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o

741
drivers/input/misc/drv260x.c Normal file
View File

@ -0,0 +1,741 @@
/*
* DRV260X haptics driver family
*
* Author: Dan Murphy <dmurphy@ti.com>
*
* Copyright: (C) 2014 Texas Instruments, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <dt-bindings/input/ti-drv260x.h>
#include <linux/platform_data/drv260x-pdata.h>
#define DRV260X_STATUS 0x0
#define DRV260X_MODE 0x1
#define DRV260X_RT_PB_IN 0x2
#define DRV260X_LIB_SEL 0x3
#define DRV260X_WV_SEQ_1 0x4
#define DRV260X_WV_SEQ_2 0x5
#define DRV260X_WV_SEQ_3 0x6
#define DRV260X_WV_SEQ_4 0x7
#define DRV260X_WV_SEQ_5 0x8
#define DRV260X_WV_SEQ_6 0x9
#define DRV260X_WV_SEQ_7 0xa
#define DRV260X_WV_SEQ_8 0xb
#define DRV260X_GO 0xc
#define DRV260X_OVERDRIVE_OFF 0xd
#define DRV260X_SUSTAIN_P_OFF 0xe
#define DRV260X_SUSTAIN_N_OFF 0xf
#define DRV260X_BRAKE_OFF 0x10
#define DRV260X_A_TO_V_CTRL 0x11
#define DRV260X_A_TO_V_MIN_INPUT 0x12
#define DRV260X_A_TO_V_MAX_INPUT 0x13
#define DRV260X_A_TO_V_MIN_OUT 0x14
#define DRV260X_A_TO_V_MAX_OUT 0x15
#define DRV260X_RATED_VOLT 0x16
#define DRV260X_OD_CLAMP_VOLT 0x17
#define DRV260X_CAL_COMP 0x18
#define DRV260X_CAL_BACK_EMF 0x19
#define DRV260X_FEEDBACK_CTRL 0x1a
#define DRV260X_CTRL1 0x1b
#define DRV260X_CTRL2 0x1c
#define DRV260X_CTRL3 0x1d
#define DRV260X_CTRL4 0x1e
#define DRV260X_CTRL5 0x1f
#define DRV260X_LRA_LOOP_PERIOD 0x20
#define DRV260X_VBAT_MON 0x21
#define DRV260X_LRA_RES_PERIOD 0x22
#define DRV260X_MAX_REG 0x23
#define DRV260X_GO_BIT 0x01
/* Library Selection */
#define DRV260X_LIB_SEL_MASK 0x07
#define DRV260X_LIB_SEL_RAM 0x0
#define DRV260X_LIB_SEL_OD 0x1
#define DRV260X_LIB_SEL_40_60 0x2
#define DRV260X_LIB_SEL_60_80 0x3
#define DRV260X_LIB_SEL_100_140 0x4
#define DRV260X_LIB_SEL_140_PLUS 0x5
#define DRV260X_LIB_SEL_HIZ_MASK 0x10
#define DRV260X_LIB_SEL_HIZ_EN 0x01
#define DRV260X_LIB_SEL_HIZ_DIS 0
/* Mode register */
#define DRV260X_STANDBY (1 << 6)
#define DRV260X_STANDBY_MASK 0x40
#define DRV260X_INTERNAL_TRIGGER 0x00
#define DRV260X_EXT_TRIGGER_EDGE 0x01
#define DRV260X_EXT_TRIGGER_LEVEL 0x02
#define DRV260X_PWM_ANALOG_IN 0x03
#define DRV260X_AUDIOHAPTIC 0x04
#define DRV260X_RT_PLAYBACK 0x05
#define DRV260X_DIAGNOSTICS 0x06
#define DRV260X_AUTO_CAL 0x07
/* Audio to Haptics Control */
#define DRV260X_AUDIO_HAPTICS_PEAK_10MS (0 << 2)
#define DRV260X_AUDIO_HAPTICS_PEAK_20MS (1 << 2)
#define DRV260X_AUDIO_HAPTICS_PEAK_30MS (2 << 2)
#define DRV260X_AUDIO_HAPTICS_PEAK_40MS (3 << 2)
#define DRV260X_AUDIO_HAPTICS_FILTER_100HZ 0x00
#define DRV260X_AUDIO_HAPTICS_FILTER_125HZ 0x01
#define DRV260X_AUDIO_HAPTICS_FILTER_150HZ 0x02
#define DRV260X_AUDIO_HAPTICS_FILTER_200HZ 0x03
/* Min/Max Input/Output Voltages */
#define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT 0x19
#define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT 0x64
#define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT 0x19
#define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT 0xFF
/* Feedback register */
#define DRV260X_FB_REG_ERM_MODE 0x7f
#define DRV260X_FB_REG_LRA_MODE (1 << 7)
#define DRV260X_BRAKE_FACTOR_MASK 0x1f
#define DRV260X_BRAKE_FACTOR_2X (1 << 0)
#define DRV260X_BRAKE_FACTOR_3X (2 << 4)
#define DRV260X_BRAKE_FACTOR_4X (3 << 4)
#define DRV260X_BRAKE_FACTOR_6X (4 << 4)
#define DRV260X_BRAKE_FACTOR_8X (5 << 4)
#define DRV260X_BRAKE_FACTOR_16 (6 << 4)
#define DRV260X_BRAKE_FACTOR_DIS (7 << 4)
#define DRV260X_LOOP_GAIN_LOW 0xf3
#define DRV260X_LOOP_GAIN_MED (1 << 2)
#define DRV260X_LOOP_GAIN_HIGH (2 << 2)
#define DRV260X_LOOP_GAIN_VERY_HIGH (3 << 2)
#define DRV260X_BEMF_GAIN_0 0xfc
#define DRV260X_BEMF_GAIN_1 (1 << 0)
#define DRV260X_BEMF_GAIN_2 (2 << 0)
#define DRV260X_BEMF_GAIN_3 (3 << 0)
/* Control 1 register */
#define DRV260X_AC_CPLE_EN (1 << 5)
#define DRV260X_STARTUP_BOOST (1 << 7)
/* Control 2 register */
#define DRV260X_IDISS_TIME_45 0
#define DRV260X_IDISS_TIME_75 (1 << 0)
#define DRV260X_IDISS_TIME_150 (1 << 1)
#define DRV260X_IDISS_TIME_225 0x03
#define DRV260X_BLANK_TIME_45 (0 << 2)
#define DRV260X_BLANK_TIME_75 (1 << 2)
#define DRV260X_BLANK_TIME_150 (2 << 2)
#define DRV260X_BLANK_TIME_225 (3 << 2)
#define DRV260X_SAMP_TIME_150 (0 << 4)
#define DRV260X_SAMP_TIME_200 (1 << 4)
#define DRV260X_SAMP_TIME_250 (2 << 4)
#define DRV260X_SAMP_TIME_300 (3 << 4)
#define DRV260X_BRAKE_STABILIZER (1 << 6)
#define DRV260X_UNIDIR_IN (0 << 7)
#define DRV260X_BIDIR_IN (1 << 7)
/* Control 3 Register */
#define DRV260X_LRA_OPEN_LOOP (1 << 0)
#define DRV260X_ANANLOG_IN (1 << 1)
#define DRV260X_LRA_DRV_MODE (1 << 2)
#define DRV260X_RTP_UNSIGNED_DATA (1 << 3)
#define DRV260X_SUPPLY_COMP_DIS (1 << 4)
#define DRV260X_ERM_OPEN_LOOP (1 << 5)
#define DRV260X_NG_THRESH_0 (0 << 6)
#define DRV260X_NG_THRESH_2 (1 << 6)
#define DRV260X_NG_THRESH_4 (2 << 6)
#define DRV260X_NG_THRESH_8 (3 << 6)
/* Control 4 Register */
#define DRV260X_AUTOCAL_TIME_150MS (0 << 4)
#define DRV260X_AUTOCAL_TIME_250MS (1 << 4)
#define DRV260X_AUTOCAL_TIME_500MS (2 << 4)
#define DRV260X_AUTOCAL_TIME_1000MS (3 << 4)
/**
* struct drv260x_data -
* @input_dev - Pointer to the input device
* @client - Pointer to the I2C client
* @regmap - Register map of the device
* @work - Work item used to off load the enable/disable of the vibration
* @enable_gpio - Pointer to the gpio used for enable/disabling
* @regulator - Pointer to the regulator for the IC
* @magnitude - Magnitude of the vibration event
* @mode - The operating mode of the IC (LRA_NO_CAL, ERM or LRA)
* @library - The vibration library to be used
* @rated_voltage - The rated_voltage of the actuator
* @overdriver_voltage - The over drive voltage of the actuator
**/
struct drv260x_data {
struct input_dev *input_dev;
struct i2c_client *client;
struct regmap *regmap;
struct work_struct work;
struct gpio_desc *enable_gpio;
struct regulator *regulator;
u32 magnitude;
u32 mode;
u32 library;
int rated_voltage;
int overdrive_voltage;
};
static struct reg_default drv260x_reg_defs[] = {
{ DRV260X_STATUS, 0xe0 },
{ DRV260X_MODE, 0x40 },
{ DRV260X_RT_PB_IN, 0x00 },
{ DRV260X_LIB_SEL, 0x00 },
{ DRV260X_WV_SEQ_1, 0x01 },
{ DRV260X_WV_SEQ_2, 0x00 },
{ DRV260X_WV_SEQ_3, 0x00 },
{ DRV260X_WV_SEQ_4, 0x00 },
{ DRV260X_WV_SEQ_5, 0x00 },
{ DRV260X_WV_SEQ_6, 0x00 },
{ DRV260X_WV_SEQ_7, 0x00 },
{ DRV260X_WV_SEQ_8, 0x00 },
{ DRV260X_GO, 0x00 },
{ DRV260X_OVERDRIVE_OFF, 0x00 },
{ DRV260X_SUSTAIN_P_OFF, 0x00 },
{ DRV260X_SUSTAIN_N_OFF, 0x00 },
{ DRV260X_BRAKE_OFF, 0x00 },
{ DRV260X_A_TO_V_CTRL, 0x05 },
{ DRV260X_A_TO_V_MIN_INPUT, 0x19 },
{ DRV260X_A_TO_V_MAX_INPUT, 0xff },
{ DRV260X_A_TO_V_MIN_OUT, 0x19 },
{ DRV260X_A_TO_V_MAX_OUT, 0xff },
{ DRV260X_RATED_VOLT, 0x3e },
{ DRV260X_OD_CLAMP_VOLT, 0x8c },
{ DRV260X_CAL_COMP, 0x0c },
{ DRV260X_CAL_BACK_EMF, 0x6c },
{ DRV260X_FEEDBACK_CTRL, 0x36 },
{ DRV260X_CTRL1, 0x93 },
{ DRV260X_CTRL2, 0xfa },
{ DRV260X_CTRL3, 0xa0 },
{ DRV260X_CTRL4, 0x20 },
{ DRV260X_CTRL5, 0x80 },
{ DRV260X_LRA_LOOP_PERIOD, 0x33 },
{ DRV260X_VBAT_MON, 0x00 },
{ DRV260X_LRA_RES_PERIOD, 0x00 },
};
#define DRV260X_DEF_RATED_VOLT 0x90
#define DRV260X_DEF_OD_CLAMP_VOLT 0x90
/**
* Rated and Overdriver Voltages:
* Calculated using the formula r = v * 255 / 5.6
* where r is what will be written to the register
* and v is the rated or overdriver voltage of the actuator
**/
static int drv260x_calculate_voltage(unsigned int voltage)
{
return (voltage * 255 / 5600);
}
static void drv260x_worker(struct work_struct *work)
{
struct drv260x_data *haptics = container_of(work, struct drv260x_data, work);
int error;
gpiod_set_value(haptics->enable_gpio, 1);
/* Data sheet says to wait 250us before trying to communicate */
udelay(250);
error = regmap_write(haptics->regmap,
DRV260X_MODE, DRV260X_RT_PLAYBACK);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write set mode: %d\n", error);
} else {
error = regmap_write(haptics->regmap,
DRV260X_RT_PB_IN, haptics->magnitude);
if (error)
dev_err(&haptics->client->dev,
"Failed to set magnitude: %d\n", error);
}
}
static int drv260x_haptics_play(struct input_dev *input, void *data,
struct ff_effect *effect)
{
struct drv260x_data *haptics = input_get_drvdata(input);
haptics->mode = DRV260X_LRA_NO_CAL_MODE;
if (effect->u.rumble.strong_magnitude > 0)
haptics->magnitude = effect->u.rumble.strong_magnitude;
else if (effect->u.rumble.weak_magnitude > 0)
haptics->magnitude = effect->u.rumble.weak_magnitude;
else
haptics->magnitude = 0;
schedule_work(&haptics->work);
return 0;
}
static void drv260x_close(struct input_dev *input)
{
struct drv260x_data *haptics = input_get_drvdata(input);
int error;
cancel_work_sync(&haptics->work);
error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY);
if (error)
dev_err(&haptics->client->dev,
"Failed to enter standby mode: %d\n", error);
gpiod_set_value(haptics->enable_gpio, 0);
}
static const struct reg_default drv260x_lra_cal_regs[] = {
{ DRV260X_MODE, DRV260X_AUTO_CAL },
{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 },
{ DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
DRV260X_BRAKE_FACTOR_4X | DRV260X_LOOP_GAIN_HIGH },
};
static const struct reg_default drv260x_lra_init_regs[] = {
{ DRV260X_MODE, DRV260X_RT_PLAYBACK },
{ DRV260X_A_TO_V_CTRL, DRV260X_AUDIO_HAPTICS_PEAK_20MS |
DRV260X_AUDIO_HAPTICS_FILTER_125HZ },
{ DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
{ DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
{ DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
{ DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
{ DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
DRV260X_BRAKE_FACTOR_2X | DRV260X_LOOP_GAIN_MED |
DRV260X_BEMF_GAIN_3 },
{ DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
{ DRV260X_CTRL2, DRV260X_SAMP_TIME_250 },
{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ANANLOG_IN },
{ DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
};
static const struct reg_default drv260x_erm_cal_regs[] = {
{ DRV260X_MODE, DRV260X_AUTO_CAL },
{ DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
{ DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
{ DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
{ DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
{ DRV260X_FEEDBACK_CTRL, DRV260X_BRAKE_FACTOR_3X |
DRV260X_LOOP_GAIN_MED | DRV260X_BEMF_GAIN_2 },
{ DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
{ DRV260X_CTRL2, DRV260X_SAMP_TIME_250 | DRV260X_BLANK_TIME_75 |
DRV260X_IDISS_TIME_75 },
{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ERM_OPEN_LOOP },
{ DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
};
static int drv260x_init(struct drv260x_data *haptics)
{
int error;
unsigned int cal_buf;
error = regmap_write(haptics->regmap,
DRV260X_RATED_VOLT, haptics->rated_voltage);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write DRV260X_RATED_VOLT register: %d\n",
error);
return error;
}
error = regmap_write(haptics->regmap,
DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write DRV260X_OD_CLAMP_VOLT register: %d\n",
error);
return error;
}
switch (haptics->mode) {
case DRV260X_LRA_MODE:
error = regmap_register_patch(haptics->regmap,
drv260x_lra_cal_regs,
ARRAY_SIZE(drv260x_lra_cal_regs));
if (error) {
dev_err(&haptics->client->dev,
"Failed to write LRA calibration registers: %d\n",
error);
return error;
}
break;
case DRV260X_ERM_MODE:
error = regmap_register_patch(haptics->regmap,
drv260x_erm_cal_regs,
ARRAY_SIZE(drv260x_erm_cal_regs));
if (error) {
dev_err(&haptics->client->dev,
"Failed to write ERM calibration registers: %d\n",
error);
return error;
}
error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
DRV260X_LIB_SEL_MASK,
haptics->library);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write DRV260X_LIB_SEL register: %d\n",
error);
return error;
}
break;
default:
error = regmap_register_patch(haptics->regmap,
drv260x_lra_init_regs,
ARRAY_SIZE(drv260x_lra_init_regs));
if (error) {
dev_err(&haptics->client->dev,
"Failed to write LRA init registers: %d\n",
error);
return error;
}
error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
DRV260X_LIB_SEL_MASK,
haptics->library);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write DRV260X_LIB_SEL register: %d\n",
error);
return error;
}
/* No need to set GO bit here */
return 0;
}
error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT);
if (error) {
dev_err(&haptics->client->dev,
"Failed to write GO register: %d\n",
error);
return error;
}
do {
error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf);
if (error) {
dev_err(&haptics->client->dev,
"Failed to read GO register: %d\n",
error);
return error;
}
} while (cal_buf == DRV260X_GO_BIT);
return 0;
}
static const struct regmap_config drv260x_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = DRV260X_MAX_REG,
.reg_defaults = drv260x_reg_defs,
.num_reg_defaults = ARRAY_SIZE(drv260x_reg_defs),
.cache_type = REGCACHE_NONE,
};
#ifdef CONFIG_OF
static int drv260x_parse_dt(struct device *dev,
struct drv260x_data *haptics)
{
struct device_node *np = dev->of_node;
unsigned int voltage;
int error;
error = of_property_read_u32(np, "mode", &haptics->mode);
if (error) {
dev_err(dev, "%s: No entry for mode\n", __func__);
return error;
}
error = of_property_read_u32(np, "library-sel", &haptics->library);
if (error) {
dev_err(dev, "%s: No entry for library selection\n",
__func__);
return error;
}
error = of_property_read_u32(np, "vib-rated-mv", &voltage);
if (!error)
haptics->rated_voltage = drv260x_calculate_voltage(voltage);
error = of_property_read_u32(np, "vib-overdrive-mv", &voltage);
if (!error)
haptics->overdrive_voltage = drv260x_calculate_voltage(voltage);
return 0;
}
#else
static inline int drv260x_parse_dt(struct device *dev,
struct drv260x_data *haptics)
{
dev_err(dev, "no platform data defined\n");
return -EINVAL;
}
#endif
static int drv260x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct drv260x_platform_data *pdata = dev_get_platdata(&client->dev);
struct drv260x_data *haptics;
int error;
haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
if (!haptics)
return -ENOMEM;
haptics->rated_voltage = DRV260X_DEF_OD_CLAMP_VOLT;
haptics->rated_voltage = DRV260X_DEF_RATED_VOLT;
if (pdata) {
haptics->mode = pdata->mode;
haptics->library = pdata->library_selection;
if (pdata->vib_overdrive_voltage)
haptics->overdrive_voltage = drv260x_calculate_voltage(pdata->vib_overdrive_voltage);
if (pdata->vib_rated_voltage)
haptics->rated_voltage = drv260x_calculate_voltage(pdata->vib_rated_voltage);
} else if (client->dev.of_node) {
error = drv260x_parse_dt(&client->dev, haptics);
if (error)
return error;
} else {
dev_err(&client->dev, "Platform data not set\n");
return -ENODEV;
}
if (haptics->mode < DRV260X_LRA_MODE ||
haptics->mode > DRV260X_ERM_MODE) {
dev_err(&client->dev,
"Vibrator mode is invalid: %i\n",
haptics->mode);
return -EINVAL;
}
if (haptics->library < DRV260X_LIB_EMPTY ||
haptics->library > DRV260X_ERM_LIB_F) {
dev_err(&client->dev,
"Library value is invalid: %i\n", haptics->library);
return -EINVAL;
}
if (haptics->mode == DRV260X_LRA_MODE &&
haptics->library != DRV260X_LIB_EMPTY &&
haptics->library != DRV260X_LIB_LRA) {
dev_err(&client->dev,
"LRA Mode with ERM Library mismatch\n");
return -EINVAL;
}
if (haptics->mode == DRV260X_ERM_MODE &&
(haptics->library == DRV260X_LIB_EMPTY ||
haptics->library == DRV260X_LIB_LRA)) {
dev_err(&client->dev,
"ERM Mode with LRA Library mismatch\n");
return -EINVAL;
}
haptics->regulator = devm_regulator_get(&client->dev, "vbat");
if (IS_ERR(haptics->regulator)) {
error = PTR_ERR(haptics->regulator);
dev_err(&client->dev,
"unable to get regulator, error: %d\n", error);
return error;
}
haptics->enable_gpio = devm_gpiod_get(&client->dev, "enable");
if (IS_ERR(haptics->enable_gpio)) {
error = PTR_ERR(haptics->enable_gpio);
if (error != -ENOENT && error != -ENOSYS)
return error;
haptics->enable_gpio = NULL;
} else {
gpiod_direction_output(haptics->enable_gpio, 1);
}
haptics->input_dev = devm_input_allocate_device(&client->dev);
if (!haptics->input_dev) {
dev_err(&client->dev, "Failed to allocate input device\n");
return -ENOMEM;
}
haptics->input_dev->name = "drv260x:haptics";
haptics->input_dev->dev.parent = client->dev.parent;
haptics->input_dev->close = drv260x_close;
input_set_drvdata(haptics->input_dev, haptics);
input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(haptics->input_dev, NULL,
drv260x_haptics_play);
if (error) {
dev_err(&client->dev, "input_ff_create() failed: %d\n",
error);
return error;
}
INIT_WORK(&haptics->work, drv260x_worker);
haptics->client = client;
i2c_set_clientdata(client, haptics);
haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
if (IS_ERR(haptics->regmap)) {
error = PTR_ERR(haptics->regmap);
dev_err(&client->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
error = drv260x_init(haptics);
if (error) {
dev_err(&client->dev, "Device init failed: %d\n", error);
return error;
}
error = input_register_device(haptics->input_dev);
if (error) {
dev_err(&client->dev, "couldn't register input device: %d\n",
error);
return error;
}
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int drv260x_suspend(struct device *dev)
{
struct drv260x_data *haptics = dev_get_drvdata(dev);
int ret = 0;
mutex_lock(&haptics->input_dev->mutex);
if (haptics->input_dev->users) {
ret = regmap_update_bits(haptics->regmap,
DRV260X_MODE,
DRV260X_STANDBY_MASK,
DRV260X_STANDBY);
if (ret) {
dev_err(dev, "Failed to set standby mode\n");
goto out;
}
gpiod_set_value(haptics->enable_gpio, 0);
ret = regulator_disable(haptics->regulator);
if (ret) {
dev_err(dev, "Failed to disable regulator\n");
regmap_update_bits(haptics->regmap,
DRV260X_MODE,
DRV260X_STANDBY_MASK, 0);
}
}
out:
mutex_unlock(&haptics->input_dev->mutex);
return ret;
}
static int drv260x_resume(struct device *dev)
{
struct drv260x_data *haptics = dev_get_drvdata(dev);
int ret = 0;
mutex_lock(&haptics->input_dev->mutex);
if (haptics->input_dev->users) {
ret = regulator_enable(haptics->regulator);
if (ret) {
dev_err(dev, "Failed to enable regulator\n");
goto out;
}
ret = regmap_update_bits(haptics->regmap,
DRV260X_MODE,
DRV260X_STANDBY_MASK, 0);
if (ret) {
dev_err(dev, "Failed to unset standby mode\n");
regulator_disable(haptics->regulator);
goto out;
}
gpiod_set_value(haptics->enable_gpio, 1);
}
out:
mutex_unlock(&haptics->input_dev->mutex);
return ret;
}
#endif
static SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume);
static const struct i2c_device_id drv260x_id[] = {
{ "drv2605l", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, drv260x_id);
#ifdef CONFIG_OF
static const struct of_device_id drv260x_of_match[] = {
{ .compatible = "ti,drv2604", },
{ .compatible = "ti,drv2604l", },
{ .compatible = "ti,drv2605", },
{ .compatible = "ti,drv2605l", },
{ }
};
MODULE_DEVICE_TABLE(of, drv260x_of_match);
#endif
static struct i2c_driver drv260x_driver = {
.probe = drv260x_probe,
.driver = {
.name = "drv260x-haptics",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(drv260x_of_match),
.pm = &drv260x_pm_ops,
},
.id_table = drv260x_id,
};
module_i2c_driver(drv260x_driver);
MODULE_ALIAS("platform:drv260x-haptics");
MODULE_DESCRIPTION("TI DRV260x haptics driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");

500
drivers/input/misc/drv2667.c Normal file
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@ -0,0 +1,500 @@
/*
* DRV2667 haptics driver family
*
* Author: Dan Murphy <dmurphy@ti.com>
*
* Copyright: (C) 2014 Texas Instruments, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.h>
/* Contol registers */
#define DRV2667_STATUS 0x00
#define DRV2667_CTRL_1 0x01
#define DRV2667_CTRL_2 0x02
/* Waveform sequencer */
#define DRV2667_WV_SEQ_0 0x03
#define DRV2667_WV_SEQ_1 0x04
#define DRV2667_WV_SEQ_2 0x05
#define DRV2667_WV_SEQ_3 0x06
#define DRV2667_WV_SEQ_4 0x07
#define DRV2667_WV_SEQ_5 0x08
#define DRV2667_WV_SEQ_6 0x09
#define DRV2667_WV_SEQ_7 0x0A
#define DRV2667_FIFO 0x0B
#define DRV2667_PAGE 0xFF
#define DRV2667_MAX_REG DRV2667_PAGE
#define DRV2667_PAGE_0 0x00
#define DRV2667_PAGE_1 0x01
#define DRV2667_PAGE_2 0x02
#define DRV2667_PAGE_3 0x03
#define DRV2667_PAGE_4 0x04
#define DRV2667_PAGE_5 0x05
#define DRV2667_PAGE_6 0x06
#define DRV2667_PAGE_7 0x07
#define DRV2667_PAGE_8 0x08
/* RAM fields */
#define DRV2667_RAM_HDR_SZ 0x0
/* RAM Header addresses */
#define DRV2667_RAM_START_HI 0x01
#define DRV2667_RAM_START_LO 0x02
#define DRV2667_RAM_STOP_HI 0x03
#define DRV2667_RAM_STOP_LO 0x04
#define DRV2667_RAM_REPEAT_CT 0x05
/* RAM data addresses */
#define DRV2667_RAM_AMP 0x06
#define DRV2667_RAM_FREQ 0x07
#define DRV2667_RAM_DURATION 0x08
#define DRV2667_RAM_ENVELOPE 0x09
/* Control 1 Register */
#define DRV2667_25_VPP_GAIN 0x00
#define DRV2667_50_VPP_GAIN 0x01
#define DRV2667_75_VPP_GAIN 0x02
#define DRV2667_100_VPP_GAIN 0x03
#define DRV2667_DIGITAL_IN 0xfc
#define DRV2667_ANALOG_IN (1 << 2)
/* Control 2 Register */
#define DRV2667_GO (1 << 0)
#define DRV2667_STANDBY (1 << 6)
#define DRV2667_DEV_RST (1 << 7)
/* RAM Envelope settings */
#define DRV2667_NO_ENV 0x00
#define DRV2667_32_MS_ENV 0x01
#define DRV2667_64_MS_ENV 0x02
#define DRV2667_96_MS_ENV 0x03
#define DRV2667_128_MS_ENV 0x04
#define DRV2667_160_MS_ENV 0x05
#define DRV2667_192_MS_ENV 0x06
#define DRV2667_224_MS_ENV 0x07
#define DRV2667_256_MS_ENV 0x08
#define DRV2667_512_MS_ENV 0x09
#define DRV2667_768_MS_ENV 0x0a
#define DRV2667_1024_MS_ENV 0x0b
#define DRV2667_1280_MS_ENV 0x0c
#define DRV2667_1536_MS_ENV 0x0d
#define DRV2667_1792_MS_ENV 0x0e
#define DRV2667_2048_MS_ENV 0x0f
/**
* struct drv2667_data -
* @input_dev - Pointer to the input device
* @client - Pointer to the I2C client
* @regmap - Register map of the device
* @work - Work item used to off load the enable/disable of the vibration
* @regulator - Pointer to the regulator for the IC
* @magnitude - Magnitude of the vibration event
**/
struct drv2667_data {
struct input_dev *input_dev;
struct i2c_client *client;
struct regmap *regmap;
struct work_struct work;
struct regulator *regulator;
u32 page;
u32 magnitude;
u32 frequency;
};
static struct reg_default drv2667_reg_defs[] = {
{ DRV2667_STATUS, 0x02 },
{ DRV2667_CTRL_1, 0x28 },
{ DRV2667_CTRL_2, 0x40 },
{ DRV2667_WV_SEQ_0, 0x00 },
{ DRV2667_WV_SEQ_1, 0x00 },
{ DRV2667_WV_SEQ_2, 0x00 },
{ DRV2667_WV_SEQ_3, 0x00 },
{ DRV2667_WV_SEQ_4, 0x00 },
{ DRV2667_WV_SEQ_5, 0x00 },
{ DRV2667_WV_SEQ_6, 0x00 },
{ DRV2667_WV_SEQ_7, 0x00 },
{ DRV2667_FIFO, 0x00 },
{ DRV2667_PAGE, 0x00 },
};
static int drv2667_set_waveform_freq(struct drv2667_data *haptics)
{
unsigned int read_buf;
int freq;
int error;
/* Per the data sheet:
* Sinusoid Frequency (Hz) = 7.8125 x Frequency
*/
freq = (haptics->frequency * 1000) / 78125;
if (freq <= 0) {
dev_err(&haptics->client->dev,
"ERROR: Frequency calculated to %i\n", freq);
return -EINVAL;
}
error = regmap_read(haptics->regmap, DRV2667_PAGE, &read_buf);
if (error) {
dev_err(&haptics->client->dev,
"Failed to read the page number: %d\n", error);
return -EIO;
}
if (read_buf == DRV2667_PAGE_0 ||
haptics->page != read_buf) {
error = regmap_write(haptics->regmap,
DRV2667_PAGE, haptics->page);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the page: %d\n", error);
return -EIO;
}
}
error = regmap_write(haptics->regmap, DRV2667_RAM_FREQ, freq);
if (error)
dev_err(&haptics->client->dev,
"Failed to set the frequency: %d\n", error);
/* Reset back to original page */
if (read_buf == DRV2667_PAGE_0 ||
haptics->page != read_buf) {
error = regmap_write(haptics->regmap, DRV2667_PAGE, read_buf);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the page: %d\n", error);
return -EIO;
}
}
return error;
}
static void drv2667_worker(struct work_struct *work)
{
struct drv2667_data *haptics = container_of(work, struct drv2667_data, work);
int error;
if (haptics->magnitude) {
error = regmap_write(haptics->regmap,
DRV2667_PAGE, haptics->page);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the page: %d\n", error);
return;
}
error = regmap_write(haptics->regmap, DRV2667_RAM_AMP,
haptics->magnitude);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the amplitude: %d\n", error);
return;
}
error = regmap_write(haptics->regmap,
DRV2667_PAGE, DRV2667_PAGE_0);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the page: %d\n", error);
return;
}
error = regmap_write(haptics->regmap,
DRV2667_CTRL_2, DRV2667_GO);
if (error) {
dev_err(&haptics->client->dev,
"Failed to set the GO bit: %d\n", error);
}
} else {
error = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
DRV2667_GO, 0);
if (error) {
dev_err(&haptics->client->dev,
"Failed to unset the GO bit: %d\n", error);
}
}
}
static int drv2667_haptics_play(struct input_dev *input, void *data,
struct ff_effect *effect)
{
struct drv2667_data *haptics = input_get_drvdata(input);
if (effect->u.rumble.strong_magnitude > 0)
haptics->magnitude = effect->u.rumble.strong_magnitude;
else if (effect->u.rumble.weak_magnitude > 0)
haptics->magnitude = effect->u.rumble.weak_magnitude;
else
haptics->magnitude = 0;
schedule_work(&haptics->work);
return 0;
}
static void drv2667_close(struct input_dev *input)
{
struct drv2667_data *haptics = input_get_drvdata(input);
int error;
cancel_work_sync(&haptics->work);
error = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
DRV2667_STANDBY, 1);
if (error)
dev_err(&haptics->client->dev,
"Failed to enter standby mode: %d\n", error);
}
static const struct reg_default drv2667_init_regs[] = {
{ DRV2667_CTRL_2, 0 },
{ DRV2667_CTRL_1, DRV2667_25_VPP_GAIN },
{ DRV2667_WV_SEQ_0, 1 },
{ DRV2667_WV_SEQ_1, 0 }
};
static const struct reg_default drv2667_page1_init[] = {
{ DRV2667_RAM_HDR_SZ, 0x05 },
{ DRV2667_RAM_START_HI, 0x80 },
{ DRV2667_RAM_START_LO, 0x06 },
{ DRV2667_RAM_STOP_HI, 0x00 },
{ DRV2667_RAM_STOP_LO, 0x09 },
{ DRV2667_RAM_REPEAT_CT, 0 },
{ DRV2667_RAM_DURATION, 0x05 },
{ DRV2667_RAM_ENVELOPE, DRV2667_NO_ENV },
{ DRV2667_RAM_AMP, 0x60 },
};
static int drv2667_init(struct drv2667_data *haptics)
{
int error;
/* Set default haptic frequency to 195Hz on Page 1*/
haptics->frequency = 195;
haptics->page = DRV2667_PAGE_1;
error = regmap_register_patch(haptics->regmap,
drv2667_init_regs,
ARRAY_SIZE(drv2667_init_regs));
if (error) {
dev_err(&haptics->client->dev,
"Failed to write init registers: %d\n",
error);
return error;
}
error = regmap_write(haptics->regmap, DRV2667_PAGE, haptics->page);
if (error) {
dev_err(&haptics->client->dev, "Failed to set page: %d\n",
error);
goto error_out;
}
error = drv2667_set_waveform_freq(haptics);
if (error)
goto error_page;
error = regmap_register_patch(haptics->regmap,
drv2667_page1_init,
ARRAY_SIZE(drv2667_page1_init));
if (error) {
dev_err(&haptics->client->dev,
"Failed to write page registers: %d\n",
error);
return error;
}
error = regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
return error;
error_page:
regmap_write(haptics->regmap, DRV2667_PAGE, DRV2667_PAGE_0);
error_out:
return error;
}
static const struct regmap_config drv2667_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = DRV2667_MAX_REG,
.reg_defaults = drv2667_reg_defs,
.num_reg_defaults = ARRAY_SIZE(drv2667_reg_defs),
.cache_type = REGCACHE_NONE,
};
static int drv2667_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct drv2667_data *haptics;
int error;
haptics = devm_kzalloc(&client->dev, sizeof(*haptics), GFP_KERNEL);
if (!haptics)
return -ENOMEM;
haptics->regulator = devm_regulator_get(&client->dev, "vbat");
if (IS_ERR(haptics->regulator)) {
error = PTR_ERR(haptics->regulator);
dev_err(&client->dev,
"unable to get regulator, error: %d\n", error);
return error;
}
haptics->input_dev = devm_input_allocate_device(&client->dev);
if (!haptics->input_dev) {
dev_err(&client->dev, "Failed to allocate input device\n");
return -ENOMEM;
}
haptics->input_dev->name = "drv2667:haptics";
haptics->input_dev->dev.parent = client->dev.parent;
haptics->input_dev->close = drv2667_close;
input_set_drvdata(haptics->input_dev, haptics);
input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(haptics->input_dev, NULL,
drv2667_haptics_play);
if (error) {
dev_err(&client->dev, "input_ff_create() failed: %d\n",
error);
return error;
}
INIT_WORK(&haptics->work, drv2667_worker);
haptics->client = client;
i2c_set_clientdata(client, haptics);
haptics->regmap = devm_regmap_init_i2c(client, &drv2667_regmap_config);
if (IS_ERR(haptics->regmap)) {
error = PTR_ERR(haptics->regmap);
dev_err(&client->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
error = drv2667_init(haptics);
if (error) {
dev_err(&client->dev, "Device init failed: %d\n", error);
return error;
}
error = input_register_device(haptics->input_dev);
if (error) {
dev_err(&client->dev, "couldn't register input device: %d\n",
error);
return error;
}
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int drv2667_suspend(struct device *dev)
{
struct drv2667_data *haptics = dev_get_drvdata(dev);
int ret = 0;
mutex_lock(&haptics->input_dev->mutex);
if (haptics->input_dev->users) {
ret = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
DRV2667_STANDBY, 1);
if (ret) {
dev_err(dev, "Failed to set standby mode\n");
regulator_disable(haptics->regulator);
goto out;
}
ret = regulator_disable(haptics->regulator);
if (ret) {
dev_err(dev, "Failed to disable regulator\n");
regmap_update_bits(haptics->regmap,
DRV2667_CTRL_2,
DRV2667_STANDBY, 0);
}
}
out:
mutex_unlock(&haptics->input_dev->mutex);
return ret;
}
static int drv2667_resume(struct device *dev)
{
struct drv2667_data *haptics = dev_get_drvdata(dev);
int ret = 0;
mutex_lock(&haptics->input_dev->mutex);
if (haptics->input_dev->users) {
ret = regulator_enable(haptics->regulator);
if (ret) {
dev_err(dev, "Failed to enable regulator\n");
goto out;
}
ret = regmap_update_bits(haptics->regmap, DRV2667_CTRL_2,
DRV2667_STANDBY, 0);
if (ret) {
dev_err(dev, "Failed to unset standby mode\n");
regulator_disable(haptics->regulator);
goto out;
}
}
out:
mutex_unlock(&haptics->input_dev->mutex);
return ret;
}
#endif
static SIMPLE_DEV_PM_OPS(drv2667_pm_ops, drv2667_suspend, drv2667_resume);
static const struct i2c_device_id drv2667_id[] = {
{ "drv2667", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, drv2667_id);
#ifdef CONFIG_OF
static const struct of_device_id drv2667_of_match[] = {
{ .compatible = "ti,drv2667", },
{ }
};
MODULE_DEVICE_TABLE(of, drv2667_of_match);
#endif
static struct i2c_driver drv2667_driver = {
.probe = drv2667_probe,
.driver = {
.name = "drv2667-haptics",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(drv2667_of_match),
.pm = &drv2667_pm_ops,
},
.id_table = drv2667_id,
};
module_i2c_driver(drv2667_driver);
MODULE_ALIAS("platform:drv2667-haptics");
MODULE_DESCRIPTION("TI DRV2667 haptics driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");

357
drivers/input/misc/max77693-haptic.c Normal file
View File

@ -0,0 +1,357 @@
/*
* MAXIM MAX77693 Haptic device driver
*
* Copyright (C) 2014 Samsung Electronics
* Jaewon Kim <jaewon02.kim@samsung.com>
*
* This program is not provided / owned by Maxim Integrated Products.
*
* 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/err.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/max77693.h>
#include <linux/mfd/max77693-private.h>
#define MAX_MAGNITUDE_SHIFT 16
enum max77693_haptic_motor_type {
MAX77693_HAPTIC_ERM = 0,
MAX77693_HAPTIC_LRA,
};
enum max77693_haptic_pulse_mode {
MAX77693_HAPTIC_EXTERNAL_MODE = 0,
MAX77693_HAPTIC_INTERNAL_MODE,
};
enum max77693_haptic_pwm_divisor {
MAX77693_HAPTIC_PWM_DIVISOR_32 = 0,
MAX77693_HAPTIC_PWM_DIVISOR_64,
MAX77693_HAPTIC_PWM_DIVISOR_128,
MAX77693_HAPTIC_PWM_DIVISOR_256,
};
struct max77693_haptic {
struct regmap *regmap_pmic;
struct regmap *regmap_haptic;
struct device *dev;
struct input_dev *input_dev;
struct pwm_device *pwm_dev;
struct regulator *motor_reg;
bool enabled;
bool suspend_state;
unsigned int magnitude;
unsigned int pwm_duty;
enum max77693_haptic_motor_type type;
enum max77693_haptic_pulse_mode mode;
enum max77693_haptic_pwm_divisor pwm_divisor;
struct work_struct work;
};
static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic)
{
int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2;
int error;
error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period);
if (error) {
dev_err(haptic->dev, "failed to configure pwm: %d\n", error);
return error;
}
return 0;
}
static int max77693_haptic_configure(struct max77693_haptic *haptic,
bool enable)
{
unsigned int value;
int error;
value = ((haptic->type << MAX77693_CONFIG2_MODE) |
(enable << MAX77693_CONFIG2_MEN) |
(haptic->mode << MAX77693_CONFIG2_HTYP) |
(haptic->pwm_divisor));
error = regmap_write(haptic->regmap_haptic,
MAX77693_HAPTIC_REG_CONFIG2, value);
if (error) {
dev_err(haptic->dev,
"failed to update haptic config: %d\n", error);
return error;
}
return 0;
}
static int max77693_haptic_lowsys(struct max77693_haptic *haptic, bool enable)
{
int error;
error = regmap_update_bits(haptic->regmap_pmic,
MAX77693_PMIC_REG_LSCNFG,
MAX77693_PMIC_LOW_SYS_MASK,
enable << MAX77693_PMIC_LOW_SYS_SHIFT);
if (error) {
dev_err(haptic->dev, "cannot update pmic regmap: %d\n", error);
return error;
}
return 0;
}
static void max77693_haptic_enable(struct max77693_haptic *haptic)
{
int error;
if (haptic->enabled)
return;
error = pwm_enable(haptic->pwm_dev);
if (error) {
dev_err(haptic->dev,
"failed to enable haptic pwm device: %d\n", error);
return;
}
error = max77693_haptic_lowsys(haptic, true);
if (error)
goto err_enable_lowsys;
error = max77693_haptic_configure(haptic, true);
if (error)
goto err_enable_config;
haptic->enabled = true;
return;
err_enable_config:
max77693_haptic_lowsys(haptic, false);
err_enable_lowsys:
pwm_disable(haptic->pwm_dev);
}
static void max77693_haptic_disable(struct max77693_haptic *haptic)
{
int error;
if (haptic->enabled)
return;
error = max77693_haptic_configure(haptic, false);
if (error)
return;
error = max77693_haptic_lowsys(haptic, false);
if (error)
goto err_disable_lowsys;
pwm_disable(haptic->pwm_dev);
haptic->enabled = false;
return;
err_disable_lowsys:
max77693_haptic_configure(haptic, true);
}
static void max77693_haptic_play_work(struct work_struct *work)
{
struct max77693_haptic *haptic =
container_of(work, struct max77693_haptic, work);
int error;
error = max77693_haptic_set_duty_cycle(haptic);
if (error) {
dev_err(haptic->dev, "failed to set duty cycle: %d\n", error);
return;
}
if (haptic->magnitude)
max77693_haptic_enable(haptic);
else
max77693_haptic_disable(haptic);
}
static int max77693_haptic_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct max77693_haptic *haptic = input_get_drvdata(dev);
uint64_t period_mag_multi;
haptic->magnitude = effect->u.rumble.strong_magnitude;
if (!haptic->magnitude)
haptic->magnitude = effect->u.rumble.weak_magnitude;
/*
* The magnitude comes from force-feedback interface.
* The formula to convert magnitude to pwm_duty as follows:
* - pwm_duty = (magnitude * pwm_period) / MAX_MAGNITUDE(0xFFFF)
*/
period_mag_multi = (int64_t)(haptic->pwm_dev->period *
haptic->magnitude);
haptic->pwm_duty = (unsigned int)(period_mag_multi >>
MAX_MAGNITUDE_SHIFT);
schedule_work(&haptic->work);
return 0;
}
static int max77693_haptic_open(struct input_dev *dev)
{
struct max77693_haptic *haptic = input_get_drvdata(dev);
int error;
error = regulator_enable(haptic->motor_reg);
if (error) {
dev_err(haptic->dev,
"failed to enable regulator: %d\n", error);
return error;
}
return 0;
}
static void max77693_haptic_close(struct input_dev *dev)
{
struct max77693_haptic *haptic = input_get_drvdata(dev);
int error;
cancel_work_sync(&haptic->work);
max77693_haptic_disable(haptic);
error = regulator_disable(haptic->motor_reg);
if (error)
dev_err(haptic->dev,
"failed to disable regulator: %d\n", error);
}
static int max77693_haptic_probe(struct platform_device *pdev)
{
struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent);
struct max77693_haptic *haptic;
int error;
haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);
if (!haptic)
return -ENOMEM;
haptic->regmap_pmic = max77693->regmap;
haptic->regmap_haptic = max77693->regmap_haptic;
haptic->dev = &pdev->dev;
haptic->type = MAX77693_HAPTIC_LRA;
haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE;
haptic->pwm_divisor = MAX77693_HAPTIC_PWM_DIVISOR_128;
haptic->suspend_state = false;
INIT_WORK(&haptic->work, max77693_haptic_play_work);
/* Get pwm and regulatot for haptic device */
haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL);
if (IS_ERR(haptic->pwm_dev)) {
dev_err(&pdev->dev, "failed to get pwm device\n");
return PTR_ERR(haptic->pwm_dev);
}
haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic");
if (IS_ERR(haptic->motor_reg)) {
dev_err(&pdev->dev, "failed to get regulator\n");
return PTR_ERR(haptic->motor_reg);
}
/* Initialize input device for haptic device */
haptic->input_dev = devm_input_allocate_device(&pdev->dev);
if (!haptic->input_dev) {
dev_err(&pdev->dev, "failed to allocate input device\n");
return -ENOMEM;
}
haptic->input_dev->name = "max77693-haptic";
haptic->input_dev->id.version = 1;
haptic->input_dev->dev.parent = &pdev->dev;
haptic->input_dev->open = max77693_haptic_open;
haptic->input_dev->close = max77693_haptic_close;
input_set_drvdata(haptic->input_dev, haptic);
input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(haptic->input_dev, NULL,
max77693_haptic_play_effect);
if (error) {
dev_err(&pdev->dev, "failed to create force-feedback\n");
return error;
}
error = input_register_device(haptic->input_dev);
if (error) {
dev_err(&pdev->dev, "failed to register input device\n");
return error;
}
platform_set_drvdata(pdev, haptic);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max77693_haptic_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max77693_haptic *haptic = platform_get_drvdata(pdev);
if (haptic->enabled) {
max77693_haptic_disable(haptic);
haptic->suspend_state = true;
}
return 0;
}
static int max77693_haptic_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max77693_haptic *haptic = platform_get_drvdata(pdev);
if (haptic->suspend_state) {
max77693_haptic_enable(haptic);
haptic->suspend_state = false;
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,
max77693_haptic_suspend, max77693_haptic_resume);
static struct platform_driver max77693_haptic_driver = {
.driver = {
.name = "max77693-haptic",
.owner = THIS_MODULE,
.pm = &max77693_haptic_pm_ops,
},
.probe = max77693_haptic_probe,
};
module_platform_driver(max77693_haptic_driver);
MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>");
MODULE_DESCRIPTION("MAXIM MAX77693 Haptic driver");
MODULE_ALIAS("platform:max77693-haptic");
MODULE_LICENSE("GPL");

332
drivers/input/misc/palmas-pwrbutton.c Normal file
View File

@ -0,0 +1,332 @@
/*
* Texas Instruments' Palmas Power Button Input Driver
*
* Copyright (C) 2012-2014 Texas Instruments Incorporated - http://www.ti.com/
* Girish S Ghongdemath
* Nishanth Menon
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/palmas.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#define PALMAS_LPK_TIME_MASK 0x0c
#define PALMAS_PWRON_DEBOUNCE_MASK 0x03
#define PALMAS_PWR_KEY_Q_TIME_MS 20
/**
* struct palmas_pwron - Palmas power on data
* @palmas: pointer to palmas device
* @input_dev: pointer to input device
* @input_work: work for detecting release of key
* @irq: irq that we are hooked on to
*/
struct palmas_pwron {
struct palmas *palmas;
struct input_dev *input_dev;
struct delayed_work input_work;
int irq;
};
/**
* struct palmas_pwron_config - configuration of palmas power on
* @long_press_time_val: value for long press h/w shutdown event
* @pwron_debounce_val: value for debounce of power button
*/
struct palmas_pwron_config {
u8 long_press_time_val;
u8 pwron_debounce_val;
};
/**
* palmas_power_button_work() - Detects the button release event
* @work: work item to detect button release
*/
static void palmas_power_button_work(struct work_struct *work)
{
struct palmas_pwron *pwron = container_of(work,
struct palmas_pwron,
input_work.work);
struct input_dev *input_dev = pwron->input_dev;
unsigned int reg;
int error;
error = palmas_read(pwron->palmas, PALMAS_INTERRUPT_BASE,
PALMAS_INT1_LINE_STATE, &reg);
if (error) {
dev_err(input_dev->dev.parent,
"Cannot read palmas PWRON status: %d\n", error);
} else if (reg & BIT(1)) {
/* The button is released, report event. */
input_report_key(input_dev, KEY_POWER, 0);
input_sync(input_dev);
} else {
/* The button is still depressed, keep checking. */
schedule_delayed_work(&pwron->input_work,
msecs_to_jiffies(PALMAS_PWR_KEY_Q_TIME_MS));
}
}
/**
* pwron_irq() - button press isr
* @irq: irq
* @palmas_pwron: pwron struct
*
* Return: IRQ_HANDLED
*/
static irqreturn_t pwron_irq(int irq, void *palmas_pwron)
{
struct palmas_pwron *pwron = palmas_pwron;
struct input_dev *input_dev = pwron->input_dev;
input_report_key(input_dev, KEY_POWER, 1);
pm_wakeup_event(input_dev->dev.parent, 0);
input_sync(input_dev);
mod_delayed_work(system_wq, &pwron->input_work,
msecs_to_jiffies(PALMAS_PWR_KEY_Q_TIME_MS));
return IRQ_HANDLED;
}
/**
* palmas_pwron_params_ofinit() - device tree parameter parser
* @dev: palmas button device
* @config: configuration params that this fills up
*/
static void palmas_pwron_params_ofinit(struct device *dev,
struct palmas_pwron_config *config)
{
struct device_node *np;
u32 val;
int i, error;
u8 lpk_times[] = { 6, 8, 10, 12 };
int pwr_on_deb_ms[] = { 15, 100, 500, 1000 };
memset(config, 0, sizeof(*config));
/* Default config parameters */
config->long_press_time_val = ARRAY_SIZE(lpk_times) - 1;
np = dev->of_node;
if (!np)
return;
error = of_property_read_u32(np, "ti,palmas-long-press-seconds", &val);
if (!error) {
for (i = 0; i < ARRAY_SIZE(lpk_times); i++) {
if (val <= lpk_times[i]) {
config->long_press_time_val = i;
break;
}
}
}
error = of_property_read_u32(np,
"ti,palmas-pwron-debounce-milli-seconds",
&val);
if (!error) {
for (i = 0; i < ARRAY_SIZE(pwr_on_deb_ms); i++) {
if (val <= pwr_on_deb_ms[i]) {
config->pwron_debounce_val = i;
break;
}
}
}
dev_info(dev, "h/w controlled shutdown duration=%d seconds\n",
lpk_times[config->long_press_time_val]);
}
/**
* palmas_pwron_probe() - probe
* @pdev: platform device for the button
*
* Return: 0 for successful probe else appropriate error
*/
static int palmas_pwron_probe(struct platform_device *pdev)
{
struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
struct device *dev = &pdev->dev;
struct input_dev *input_dev;
struct palmas_pwron *pwron;
struct palmas_pwron_config config;
int val;
int error;
palmas_pwron_params_ofinit(dev, &config);
pwron = kzalloc(sizeof(*pwron), GFP_KERNEL);
if (!pwron)
return -ENOMEM;
input_dev = input_allocate_device();
if (!input_dev) {
dev_err(dev, "Can't allocate power button\n");
error = -ENOMEM;
goto err_free_mem;
}
input_dev->name = "palmas_pwron";
input_dev->phys = "palmas_pwron/input0";
input_dev->dev.parent = dev;
input_set_capability(input_dev, EV_KEY, KEY_POWER);
/*
* Setup default hardware shutdown option (long key press)
* and debounce.
*/
val = config.long_press_time_val << __ffs(PALMAS_LPK_TIME_MASK);
val |= config.pwron_debounce_val << __ffs(PALMAS_PWRON_DEBOUNCE_MASK);
error = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
PALMAS_LONG_PRESS_KEY,
PALMAS_LPK_TIME_MASK |
PALMAS_PWRON_DEBOUNCE_MASK,
val);
if (error) {
dev_err(dev, "LONG_PRESS_KEY_UPDATE failed: %d\n", error);
goto err_free_input;
}
pwron->palmas = palmas;
pwron->input_dev = input_dev;
INIT_DELAYED_WORK(&pwron->input_work, palmas_power_button_work);
pwron->irq = platform_get_irq(pdev, 0);
error = request_threaded_irq(pwron->irq, NULL, pwron_irq,
IRQF_TRIGGER_HIGH |
IRQF_TRIGGER_LOW |
IRQF_ONESHOT,
dev_name(dev), pwron);
if (error) {
dev_err(dev, "Can't get IRQ for pwron: %d\n", error);
goto err_free_input;
}
error = input_register_device(input_dev);
if (error) {
dev_err(dev, "Can't register power button: %d\n", error);
goto err_free_irq;
}
platform_set_drvdata(pdev, pwron);
device_init_wakeup(dev, true);
return 0;
err_free_irq:
cancel_delayed_work_sync(&pwron->input_work);
free_irq(pwron->irq, pwron);
err_free_input:
input_free_device(input_dev);
err_free_mem:
kfree(pwron);
return error;
}
/**
* palmas_pwron_remove() - Cleanup on removal
* @pdev: platform device for the button
*
* Return: 0
*/
static int palmas_pwron_remove(struct platform_device *pdev)
{
struct palmas_pwron *pwron = platform_get_drvdata(pdev);
free_irq(pwron->irq, pwron);
cancel_delayed_work_sync(&pwron->input_work);
input_unregister_device(pwron->input_dev);
kfree(pwron);
return 0;
}
#ifdef CONFIG_PM_SLEEP
/**
* palmas_pwron_suspend() - suspend handler
* @dev: power button device
*
* Cancel all pending work items for the power button, setup irq for wakeup
*
* Return: 0
*/
static int palmas_pwron_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct palmas_pwron *pwron = platform_get_drvdata(pdev);
cancel_delayed_work_sync(&pwron->input_work);
if (device_may_wakeup(dev))
enable_irq_wake(pwron->irq);
return 0;
}
/**
* palmas_pwron_resume() - resume handler
* @dev: power button device
*
* Just disable the wakeup capability of irq here.
*
* Return: 0
*/
static int palmas_pwron_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct palmas_pwron *pwron = platform_get_drvdata(pdev);
if (device_may_wakeup(dev))
disable_irq_wake(pwron->irq);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(palmas_pwron_pm,
palmas_pwron_suspend, palmas_pwron_resume);
#ifdef CONFIG_OF
static struct of_device_id of_palmas_pwr_match[] = {
{ .compatible = "ti,palmas-pwrbutton" },
{ },
};
MODULE_DEVICE_TABLE(of, of_palmas_pwr_match);
#endif
static struct platform_driver palmas_pwron_driver = {
.probe = palmas_pwron_probe,
.remove = palmas_pwron_remove,
.driver = {
.name = "palmas_pwrbutton",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(of_palmas_pwr_match),
.pm = &palmas_pwron_pm,
},
};
module_platform_driver(palmas_pwron_driver);
MODULE_ALIAS("platform:palmas-pwrbutton");
MODULE_DESCRIPTION("Palmas Power Button");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Texas Instruments Inc.");

60
drivers/input/misc/soc_button_array.c
View File

@ -18,7 +18,7 @@
#include <linux/gpio/consumer.h>
#include <linux/gpio_keys.h>
#include <linux/platform_device.h>
#include <linux/pnp.h>
#include <linux/acpi.h>
/*
* Definition of buttons on the tablet. The ACPI index of each button
@ -67,7 +67,7 @@ static int soc_button_lookup_gpio(struct device *dev, int acpi_index)
}
static struct platform_device *
soc_button_device_create(struct pnp_dev *pdev,
soc_button_device_create(struct platform_device *pdev,
const struct soc_button_info *button_info,
bool autorepeat)
{
@ -138,30 +138,40 @@ soc_button_device_create(struct pnp_dev *pdev,
return ERR_PTR(error);
}
static void soc_button_remove(struct pnp_dev *pdev)
static int soc_button_remove(struct platform_device *pdev)
{
struct soc_button_data *priv = pnp_get_drvdata(pdev);
struct soc_button_data *priv = platform_get_drvdata(pdev);
int i;
for (i = 0; i < BUTTON_TYPES; i++)
if (priv->children[i])
platform_device_unregister(priv->children[i]);
return 0;
}
static int soc_button_pnp_probe(struct pnp_dev *pdev,
const struct pnp_device_id *id)
static int soc_button_probe(struct platform_device *pdev)
{
const struct soc_button_info *button_info = (void *)id->driver_data;
struct device *dev = &pdev->dev;
const struct acpi_device_id *id;
struct soc_button_info *button_info;
struct soc_button_data *priv;
struct platform_device *pd;
int i;
int error;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
button_info = (struct soc_button_info *)id->driver_data;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
pnp_set_drvdata(pdev, priv);
platform_set_drvdata(pdev, priv);
for (i = 0; i < BUTTON_TYPES; i++) {
pd = soc_button_device_create(pdev, button_info, i == 0);
@ -192,30 +202,22 @@ static struct soc_button_info soc_button_PNP0C40[] = {
{ }
};
static const struct pnp_device_id soc_button_pnp_match[] = {
{ .id = "PNP0C40", .driver_data = (long)soc_button_PNP0C40 },
{ .id = "" }
static const struct acpi_device_id soc_button_acpi_match[] = {
{ "PNP0C40", (unsigned long)soc_button_PNP0C40 },
{ }
};
MODULE_DEVICE_TABLE(pnp, soc_button_pnp_match);
static struct pnp_driver soc_button_pnp_driver = {
.name = KBUILD_MODNAME,
.id_table = soc_button_pnp_match,
.probe = soc_button_pnp_probe,
MODULE_DEVICE_TABLE(acpi, soc_button_acpi_match);
static struct platform_driver soc_button_driver = {
.probe = soc_button_probe,
.remove = soc_button_remove,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
.acpi_match_table = ACPI_PTR(soc_button_acpi_match),
},
};
static int __init soc_button_init(void)
{
return pnp_register_driver(&soc_button_pnp_driver);
}
static void __exit soc_button_exit(void)
{
pnp_unregister_driver(&soc_button_pnp_driver);
}
module_init(soc_button_init);
module_exit(soc_button_exit);
module_platform_driver(soc_button_driver);
MODULE_LICENSE("GPL");

2
drivers/input/mouse/Makefile
View File

@ -23,7 +23,7 @@ obj-$(CONFIG_MOUSE_SYNAPTICS_I2C) += synaptics_i2c.o
obj-$(CONFIG_MOUSE_SYNAPTICS_USB) += synaptics_usb.o
obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o
psmouse-objs := psmouse-base.o synaptics.o
psmouse-objs := psmouse-base.o synaptics.o focaltech.o
psmouse-$(CONFIG_MOUSE_PS2_ALPS) += alps.o
psmouse-$(CONFIG_MOUSE_PS2_ELANTECH) += elantech.o

52
drivers/input/mouse/focaltech.c Normal file
View File

@ -0,0 +1,52 @@
/*
* Focaltech TouchPad PS/2 mouse driver
*
* Copyright (c) 2014 Red Hat Inc.
*
* 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.
*
* Red Hat authors:
*
* Hans de Goede <hdegoede@redhat.com>
*/
/*
* The Focaltech PS/2 touchpad protocol is unknown. This drivers deals with
* detection only, to avoid further detection attempts confusing the touchpad
* this way it at least works in PS/2 mouse compatibility mode.
*/
#include <linux/device.h>
#include <linux/libps2.h>
#include "psmouse.h"
static const char * const focaltech_pnp_ids[] = {
"FLT0101",
"FLT0102",
"FLT0103",
NULL
};
int focaltech_detect(struct psmouse *psmouse, bool set_properties)
{
if (!psmouse_matches_pnp_id(psmouse, focaltech_pnp_ids))
return -ENODEV;
if (set_properties) {
psmouse->vendor = "FocalTech";
psmouse->name = "FocalTech Touchpad in mouse emulation mode";
}
return 0;
}
int focaltech_init(struct psmouse *psmouse)
{
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
psmouse_reset(psmouse);
return 0;
}

22
drivers/input/mouse/focaltech.h Normal file
View File

@ -0,0 +1,22 @@
/*
* Focaltech TouchPad PS/2 mouse driver
*
* Copyright (c) 2014 Red Hat Inc.
*
* 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.
*
* Red Hat authors:
*
* Hans de Goede <hdegoede@redhat.com>
*/
#ifndef _FOCALTECH_H
#define _FOCALTECH_H
int focaltech_detect(struct psmouse *psmouse, bool set_properties);
int focaltech_init(struct psmouse *psmouse);
#endif

30
drivers/input/mouse/psmouse-base.c
View File

@ -35,6 +35,7 @@
#include "elantech.h"
#include "sentelic.h"
#include "cypress_ps2.h"
#include "focaltech.h"
#define DRIVER_DESC "PS/2 mouse driver"
@ -462,6 +463,20 @@ static int psmouse_poll(struct psmouse *psmouse)
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
}
/*
* psmouse_matches_pnp_id - check if psmouse matches one of the passed in ids.
*/
bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[])
{
int i;
if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4))
for (i = 0; ids[i]; i++)
if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i]))
return true;
return false;
}
/*
* Genius NetMouse magic init.
@ -708,6 +723,21 @@ static int psmouse_extensions(struct psmouse *psmouse,
{
bool synaptics_hardware = false;
/* Always check for focaltech, this is safe as it uses pnp-id matching */
if (psmouse_do_detect(focaltech_detect, psmouse, set_properties) == 0) {
if (!set_properties || focaltech_init(psmouse) == 0) {
/*
* Not supported yet, use bare protocol.
* Note that we need to also restrict
* psmouse_max_proto so that psmouse_initialize()
* does not try to reset rate and resolution,
* because even that upsets the device.
*/
psmouse_max_proto = PSMOUSE_PS2;
return PSMOUSE_PS2;
}
}
/*
* We always check for lifebook because it does not disturb mouse
* (it only checks DMI information).

1
drivers/input/mouse/psmouse.h
View File

@ -108,6 +108,7 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
int psmouse_activate(struct psmouse *psmouse);
int psmouse_deactivate(struct psmouse *psmouse);
bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[]);
struct psmouse_attribute {
struct device_attribute dattr;

17
drivers/input/mouse/synaptics.c
View File

@ -185,18 +185,6 @@ static const char * const topbuttonpad_pnp_ids[] = {
NULL
};
static bool matches_pnp_id(struct psmouse *psmouse, const char * const ids[])
{
int i;
if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4))
for (i = 0; ids[i]; i++)
if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i]))
return true;
return false;
}
/*****************************************************************************
* Synaptics communications functions
****************************************************************************/
@ -362,7 +350,8 @@ static int synaptics_resolution(struct psmouse *psmouse)
}
for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
if (matches_pnp_id(psmouse, min_max_pnpid_table[i].pnp_ids)) {
if (psmouse_matches_pnp_id(psmouse,
min_max_pnpid_table[i].pnp_ids)) {
priv->x_min = min_max_pnpid_table[i].x_min;
priv->x_max = min_max_pnpid_table[i].x_max;
priv->y_min = min_max_pnpid_table[i].y_min;
@ -1492,7 +1481,7 @@ static void set_input_params(struct psmouse *psmouse,
if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
if (matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
__set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
/* Clickpads report only left button */
__clear_bit(BTN_RIGHT, dev->keybit);

36
include/dt-bindings/input/ti-drv260x.h Normal file
View File

@ -0,0 +1,36 @@
/*
* DRV260X haptics driver family
*
* Author: Dan Murphy <dmurphy@ti.com>
*
* Copyright: (C) 2014 Texas Instruments, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*/
#ifndef _DT_BINDINGS_TI_DRV260X_H
#define _DT_BINDINGS_TI_DRV260X_H
/* Calibration Types */
#define DRV260X_LRA_MODE 0x00
#define DRV260X_LRA_NO_CAL_MODE 0x01
#define DRV260X_ERM_MODE 0x02
/* Library Selection */
#define DRV260X_LIB_EMPTY 0x00
#define DRV260X_ERM_LIB_A 0x01
#define DRV260X_ERM_LIB_B 0x02
#define DRV260X_ERM_LIB_C 0x03
#define DRV260X_ERM_LIB_D 0x04
#define DRV260X_ERM_LIB_E 0x05
#define DRV260X_LIB_LRA 0x06
#define DRV260X_ERM_LIB_F 0x07
#endif

9
include/linux/mfd/max77693-private.h
View File

@ -251,6 +251,15 @@ enum max77693_haptic_reg {
MAX77693_HAPTIC_REG_END,
};
/* max77693-pmic LSCNFG configuraton register */
#define MAX77693_PMIC_LOW_SYS_MASK 0x80
#define MAX77693_PMIC_LOW_SYS_SHIFT 7
/* max77693-haptic configuration register */
#define MAX77693_CONFIG2_MODE 7
#define MAX77693_CONFIG2_MEN 6
#define MAX77693_CONFIG2_HTYP 5
enum max77693_irq_source {
LED_INT = 0,
TOPSYS_INT,

28
include/linux/platform_data/drv260x-pdata.h Normal file
View File

@ -0,0 +1,28 @@
/*
* Platform data for DRV260X haptics driver family
*
* Author: Dan Murphy <dmurphy@ti.com>
*
* Copyright: (C) 2014 Texas Instruments, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*/
#ifndef _LINUX_DRV260X_PDATA_H
#define _LINUX_DRV260X_PDATA_H
struct drv260x_platform_data {
u32 library_selection;
u32 mode;
u32 vib_rated_voltage;
u32 vib_overdrive_voltage;
};
#endif