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Input: remove obsolete {corgi,spitz,tosa}kbd.c

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Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Eric Miao
2010-05-03 23:29:58 -07:00
committed by Dmitry Torokhov
parent f3192090df
commit 16b32e0c9e
6 changed files with 0 additions and 1403 deletions
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48
drivers/input/keyboard/Kconfig
View File

@@ -143,19 +143,6 @@ config KEYBOARD_BFIN
To compile this driver as a module, choose M here: the
module will be called bf54x-keys.
config KEYBOARD_CORGI
tristate "Corgi keyboard (deprecated)"
depends on PXA_SHARPSL
help
Say Y here to enable the keyboard on the Sharp Zaurus SL-C7xx
series of PDAs.
This driver is now deprecated, use generic GPIO based matrix
keyboard driver instead.
To compile this driver as a module, choose M here: the
module will be called corgikbd.
config KEYBOARD_LKKBD
tristate "DECstation/VAXstation LK201/LK401 keyboard"
select SERIO
@@ -339,19 +326,6 @@ config KEYBOARD_PXA930_ROTARY
To compile this driver as a module, choose M here: the
module will be called pxa930_rotary.
config KEYBOARD_SPITZ
tristate "Spitz keyboard (deprecated)"
depends on PXA_SHARPSL
help
Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000,
SL-C3000 and Sl-C3100 series of PDAs.
This driver is now deprecated, use generic GPIO based matrix
keyboard driver instead.
To compile this driver as a module, choose M here: the
module will be called spitzkbd.
config KEYBOARD_STOWAWAY
tristate "Stowaway keyboard"
select SERIO
@@ -414,28 +388,6 @@ config KEYBOARD_TWL4030
To compile this driver as a module, choose M here: the
module will be called twl4030_keypad.
config KEYBOARD_TOSA
tristate "Tosa keyboard (deprecated)"
depends on MACH_TOSA
help
Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
This driver is now deprecated, use generic GPIO based matrix
keyboard driver instead.
To compile this driver as a module, choose M here: the
module will be called tosakbd.
config KEYBOARD_TOSA_USE_EXT_KEYCODES
bool "Tosa keyboard: use extended keycodes"
depends on KEYBOARD_TOSA
help
Say Y here to enable the tosa keyboard driver to generate extended
(>= 127) keycodes. Be aware, that they can't be correctly interpreted
by either console keyboard driver or by Kdrive keybd driver.
Say Y only if you know, what you are doing!
config KEYBOARD_XTKBD
tristate "XT keyboard"
select SERIO

3
drivers/input/keyboard/Makefile
View File

@@ -11,7 +11,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o
obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o
obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o
obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o
@@ -33,10 +32,8 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o
obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o

414
drivers/input/keyboard/corgikbd.c
View File

@@ -1,414 +0,0 @@
/*
* Keyboard driver for Sharp Corgi models (SL-C7xx)
*
* Copyright (c) 2004-2005 Richard Purdie
*
* Based on xtkbd.c/locomkbd.c
*
* 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.
*
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <mach/corgi.h>
#include <mach/pxa2xx-gpio.h>
#include <asm/hardware/scoop.h>
#define KB_ROWS 8
#define KB_COLS 12
#define KB_ROWMASK(r) (1 << (r))
#define SCANCODE(r,c) ( ((r)<<4) + (c) + 1 )
/* zero code, 124 scancodes */
#define NR_SCANCODES ( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 )
#define SCAN_INTERVAL (50) /* ms */
#define HINGE_SCAN_INTERVAL (250) /* ms */
#define CORGI_KEY_CALENDER KEY_F1
#define CORGI_KEY_ADDRESS KEY_F2
#define CORGI_KEY_FN KEY_F3
#define CORGI_KEY_CANCEL KEY_F4
#define CORGI_KEY_OFF KEY_SUSPEND
#define CORGI_KEY_EXOK KEY_F5
#define CORGI_KEY_EXCANCEL KEY_F6
#define CORGI_KEY_EXJOGDOWN KEY_F7
#define CORGI_KEY_EXJOGUP KEY_F8
#define CORGI_KEY_JAP1 KEY_LEFTCTRL
#define CORGI_KEY_JAP2 KEY_LEFTALT
#define CORGI_KEY_MAIL KEY_F10
#define CORGI_KEY_OK KEY_F11
#define CORGI_KEY_MENU KEY_F12
static unsigned char corgikbd_keycode[NR_SCANCODES] = {
0, /* 0 */
0, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, 0, 0, 0, 0, 0, 0, 0, /* 1-16 */
0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, 0, 0, 0, 0, 0, 0, 0, /* 17-32 */
KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */
CORGI_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */
CORGI_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, 0, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, /* 65-80 */
CORGI_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, 0, CORGI_KEY_FN, 0, 0, 0, 0, /* 81-96 */
KEY_SYSRQ, CORGI_KEY_JAP1, CORGI_KEY_JAP2, CORGI_KEY_CANCEL, CORGI_KEY_OK, CORGI_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0, /* 97-112 */
CORGI_KEY_OFF, CORGI_KEY_EXOK, CORGI_KEY_EXCANCEL, CORGI_KEY_EXJOGDOWN, CORGI_KEY_EXJOGUP, 0, 0, 0, 0, 0, 0, 0, /* 113-124 */
};
struct corgikbd {
unsigned char keycode[ARRAY_SIZE(corgikbd_keycode)];
struct input_dev *input;
spinlock_t lock;
struct timer_list timer;
struct timer_list htimer;
unsigned int suspended;
unsigned long suspend_jiffies;
};
#define KB_DISCHARGE_DELAY 10
#define KB_ACTIVATE_DELAY 10
/* Helper functions for reading the keyboard matrix
* Note: We should really be using the generic gpio functions to alter
* GPDR but it requires a function call per GPIO bit which is
* excessive when we need to access 12 bits at once, multiple times.
* These functions must be called within local_irq_save()/local_irq_restore()
* or similar.
*/
static inline void corgikbd_discharge_all(void)
{
/* STROBE All HiZ */
GPCR2 = CORGI_GPIO_ALL_STROBE_BIT;
GPDR2 &= ~CORGI_GPIO_ALL_STROBE_BIT;
}
static inline void corgikbd_activate_all(void)
{
/* STROBE ALL -> High */
GPSR2 = CORGI_GPIO_ALL_STROBE_BIT;
GPDR2 |= CORGI_GPIO_ALL_STROBE_BIT;
udelay(KB_DISCHARGE_DELAY);
/* Clear any interrupts we may have triggered when altering the GPIO lines */
GEDR1 = CORGI_GPIO_HIGH_SENSE_BIT;
GEDR2 = CORGI_GPIO_LOW_SENSE_BIT;
}
static inline void corgikbd_activate_col(int col)
{
/* STROBE col -> High, not col -> HiZ */
GPSR2 = CORGI_GPIO_STROBE_BIT(col);
GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col);
}
static inline void corgikbd_reset_col(int col)
{
/* STROBE col -> Low */
GPCR2 = CORGI_GPIO_STROBE_BIT(col);
/* STROBE col -> out, not col -> HiZ */
GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col);
}
#define GET_ROWS_STATUS(c) (((GPLR1 & CORGI_GPIO_HIGH_SENSE_BIT) >> CORGI_GPIO_HIGH_SENSE_RSHIFT) | ((GPLR2 & CORGI_GPIO_LOW_SENSE_BIT) << CORGI_GPIO_LOW_SENSE_LSHIFT))
/*
* The corgi keyboard only generates interrupts when a key is pressed.
* When a key is pressed, we enable a timer which then scans the
* keyboard to detect when the key is released.
*/
/* Scan the hardware keyboard and push any changes up through the input layer */
static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data)
{
unsigned int row, col, rowd;
unsigned long flags;
unsigned int num_pressed;
if (corgikbd_data->suspended)
return;
spin_lock_irqsave(&corgikbd_data->lock, flags);
num_pressed = 0;
for (col = 0; col < KB_COLS; col++) {
/*
* Discharge the output driver capacitatance
* in the keyboard matrix. (Yes it is significant..)
*/
corgikbd_discharge_all();
udelay(KB_DISCHARGE_DELAY);
corgikbd_activate_col(col);
udelay(KB_ACTIVATE_DELAY);
rowd = GET_ROWS_STATUS(col);
for (row = 0; row < KB_ROWS; row++) {
unsigned int scancode, pressed;
scancode = SCANCODE(row, col);
pressed = rowd & KB_ROWMASK(row);
input_report_key(corgikbd_data->input, corgikbd_data->keycode[scancode], pressed);
if (pressed)
num_pressed++;
if (pressed && (corgikbd_data->keycode[scancode] == CORGI_KEY_OFF)
&& time_after(jiffies, corgikbd_data->suspend_jiffies + HZ)) {
input_event(corgikbd_data->input, EV_PWR, CORGI_KEY_OFF, 1);
corgikbd_data->suspend_jiffies=jiffies;
}
}
corgikbd_reset_col(col);
}
corgikbd_activate_all();
input_sync(corgikbd_data->input);
/* if any keys are pressed, enable the timer */
if (num_pressed)
mod_timer(&corgikbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL));
spin_unlock_irqrestore(&corgikbd_data->lock, flags);
}
/*
* corgi keyboard interrupt handler.
*/
static irqreturn_t corgikbd_interrupt(int irq, void *dev_id)
{
struct corgikbd *corgikbd_data = dev_id;
if (!timer_pending(&corgikbd_data->timer)) {
/** wait chattering delay **/
udelay(20);
corgikbd_scankeyboard(corgikbd_data);
}
return IRQ_HANDLED;
}
/*
* corgi timer checking for released keys
*/
static void corgikbd_timer_callback(unsigned long data)
{
struct corgikbd *corgikbd_data = (struct corgikbd *) data;
corgikbd_scankeyboard(corgikbd_data);
}
/*
* The hinge switches generate no interrupt so they need to be
* monitored by a timer.
*
* We debounce the switches and pass them to the input system.
*
* gprr == 0x00 - Keyboard with Landscape Screen
* 0x08 - No Keyboard with Portrait Screen
* 0x0c - Keyboard and Screen Closed
*/
#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x))
#define HINGE_STABLE_COUNT 2
static int sharpsl_hinge_state;
static int hinge_count;
static void corgikbd_hinge_timer(unsigned long data)
{
struct corgikbd *corgikbd_data = (struct corgikbd *) data;
unsigned long gprr;
unsigned long flags;
gprr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_GPRR) & (CORGI_SCP_SWA | CORGI_SCP_SWB);
gprr |= (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0);
if (gprr != sharpsl_hinge_state) {
hinge_count = 0;
sharpsl_hinge_state = gprr;
} else if (hinge_count < HINGE_STABLE_COUNT) {
hinge_count++;
if (hinge_count >= HINGE_STABLE_COUNT) {
spin_lock_irqsave(&corgikbd_data->lock, flags);
input_report_switch(corgikbd_data->input, SW_LID, ((sharpsl_hinge_state & CORGI_SCP_SWA) != 0));
input_report_switch(corgikbd_data->input, SW_TABLET_MODE, ((sharpsl_hinge_state & CORGI_SCP_SWB) != 0));
input_report_switch(corgikbd_data->input, SW_HEADPHONE_INSERT, (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0));
input_sync(corgikbd_data->input);
spin_unlock_irqrestore(&corgikbd_data->lock, flags);
}
}
mod_timer(&corgikbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
}
#ifdef CONFIG_PM
static int corgikbd_suspend(struct platform_device *dev, pm_message_t state)
{
int i;
struct corgikbd *corgikbd = platform_get_drvdata(dev);
corgikbd->suspended = 1;
/* strobe 0 is the power key so this can't be made an input for
powersaving therefore i = 1 */
for (i = 1; i < CORGI_KEY_STROBE_NUM; i++)
pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_IN);
return 0;
}
static int corgikbd_resume(struct platform_device *dev)
{
int i;
struct corgikbd *corgikbd = platform_get_drvdata(dev);
for (i = 1; i < CORGI_KEY_STROBE_NUM; i++)
pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
/* Upon resume, ignore the suspend key for a short while */
corgikbd->suspend_jiffies=jiffies;
corgikbd->suspended = 0;
return 0;
}
#else
#define corgikbd_suspend NULL
#define corgikbd_resume NULL
#endif
static int __devinit corgikbd_probe(struct platform_device *pdev)
{
struct corgikbd *corgikbd;
struct input_dev *input_dev;
int i, err = -ENOMEM;
corgikbd = kzalloc(sizeof(struct corgikbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!corgikbd || !input_dev)
goto fail;
platform_set_drvdata(pdev, corgikbd);
corgikbd->input = input_dev;
spin_lock_init(&corgikbd->lock);
/* Init Keyboard rescan timer */
init_timer(&corgikbd->timer);
corgikbd->timer.function = corgikbd_timer_callback;
corgikbd->timer.data = (unsigned long) corgikbd;
/* Init Hinge Timer */
init_timer(&corgikbd->htimer);
corgikbd->htimer.function = corgikbd_hinge_timer;
corgikbd->htimer.data = (unsigned long) corgikbd;
corgikbd->suspend_jiffies=jiffies;
memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode));
input_dev->name = "Corgi Keyboard";
input_dev->phys = "corgikbd/input0";
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &pdev->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
BIT_MASK(EV_PWR) | BIT_MASK(EV_SW);
input_dev->keycode = corgikbd->keycode;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode);
for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++)
set_bit(corgikbd->keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
set_bit(SW_LID, input_dev->swbit);
set_bit(SW_TABLET_MODE, input_dev->swbit);
set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
err = input_register_device(corgikbd->input);
if (err)
goto fail;
mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) {
pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN);
if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING,
"corgikbd", corgikbd))
printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i);
}
/* Set Strobe lines as outputs - set high */
for (i = 0; i < CORGI_KEY_STROBE_NUM; i++)
pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
/* Setup the headphone jack as an input */
pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN);
return 0;
fail: input_free_device(input_dev);
kfree(corgikbd);
return err;
}
static int __devexit corgikbd_remove(struct platform_device *pdev)
{
int i;
struct corgikbd *corgikbd = platform_get_drvdata(pdev);
for (i = 0; i < CORGI_KEY_SENSE_NUM; i++)
free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd);
del_timer_sync(&corgikbd->htimer);
del_timer_sync(&corgikbd->timer);
input_unregister_device(corgikbd->input);
kfree(corgikbd);
return 0;
}
static struct platform_driver corgikbd_driver = {
.probe = corgikbd_probe,
.remove = __devexit_p(corgikbd_remove),
.suspend = corgikbd_suspend,
.resume = corgikbd_resume,
.driver = {
.name = "corgi-keyboard",
.owner = THIS_MODULE,
},
};
static int __init corgikbd_init(void)
{
return platform_driver_register(&corgikbd_driver);
}
static void __exit corgikbd_exit(void)
{
platform_driver_unregister(&corgikbd_driver);
}
module_init(corgikbd_init);
module_exit(corgikbd_exit);
MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
MODULE_DESCRIPTION("Corgi Keyboard Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:corgi-keyboard");

496
drivers/input/keyboard/spitzkbd.c
View File

@@ -1,496 +0,0 @@
/*
* Keyboard driver for Sharp Spitz, Borzoi and Akita (SL-Cxx00 series)
*
* Copyright (c) 2005 Richard Purdie
*
* Based on corgikbd.c
*
* 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.
*
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <mach/spitz.h>
#include <mach/pxa2xx-gpio.h>
#define KB_ROWS 7
#define KB_COLS 11
#define KB_ROWMASK(r) (1 << (r))
#define SCANCODE(r,c) (((r)<<4) + (c) + 1)
#define NR_SCANCODES ((KB_ROWS<<4) + 1)
#define SCAN_INTERVAL (50) /* ms */
#define HINGE_SCAN_INTERVAL (150) /* ms */
#define SPITZ_KEY_CALENDER KEY_F1
#define SPITZ_KEY_ADDRESS KEY_F2
#define SPITZ_KEY_FN KEY_F3
#define SPITZ_KEY_CANCEL KEY_F4
#define SPITZ_KEY_EXOK KEY_F5
#define SPITZ_KEY_EXCANCEL KEY_F6
#define SPITZ_KEY_EXJOGDOWN KEY_F7
#define SPITZ_KEY_EXJOGUP KEY_F8
#define SPITZ_KEY_JAP1 KEY_LEFTALT
#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL
#define SPITZ_KEY_SYNC KEY_F9
#define SPITZ_KEY_MAIL KEY_F10
#define SPITZ_KEY_OK KEY_F11
#define SPITZ_KEY_MENU KEY_F12
static unsigned char spitzkbd_keycode[NR_SCANCODES] = {
0, /* 0 */
KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */
0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */
KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */
SPITZ_KEY_ADDRESS, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */
SPITZ_KEY_CALENDER, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */
SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */
KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */
};
static int spitz_strobes[] = {
SPITZ_GPIO_KEY_STROBE0,
SPITZ_GPIO_KEY_STROBE1,
SPITZ_GPIO_KEY_STROBE2,
SPITZ_GPIO_KEY_STROBE3,
SPITZ_GPIO_KEY_STROBE4,
SPITZ_GPIO_KEY_STROBE5,
SPITZ_GPIO_KEY_STROBE6,
SPITZ_GPIO_KEY_STROBE7,
SPITZ_GPIO_KEY_STROBE8,
SPITZ_GPIO_KEY_STROBE9,
SPITZ_GPIO_KEY_STROBE10,
};
static int spitz_senses[] = {
SPITZ_GPIO_KEY_SENSE0,
SPITZ_GPIO_KEY_SENSE1,
SPITZ_GPIO_KEY_SENSE2,
SPITZ_GPIO_KEY_SENSE3,
SPITZ_GPIO_KEY_SENSE4,
SPITZ_GPIO_KEY_SENSE5,
SPITZ_GPIO_KEY_SENSE6,
};
struct spitzkbd {
unsigned char keycode[ARRAY_SIZE(spitzkbd_keycode)];
struct input_dev *input;
char phys[32];
spinlock_t lock;
struct timer_list timer;
struct timer_list htimer;
unsigned int suspended;
unsigned long suspend_jiffies;
};
#define KB_DISCHARGE_DELAY 10
#define KB_ACTIVATE_DELAY 10
/* Helper functions for reading the keyboard matrix
* Note: We should really be using the generic gpio functions to alter
* GPDR but it requires a function call per GPIO bit which is
* excessive when we need to access 11 bits at once, multiple times.
* These functions must be called within local_irq_save()/local_irq_restore()
* or similar.
*/
static inline void spitzkbd_discharge_all(void)
{
/* STROBE All HiZ */
GPCR0 = SPITZ_GPIO_G0_STROBE_BIT;
GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
GPCR1 = SPITZ_GPIO_G1_STROBE_BIT;
GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
GPCR2 = SPITZ_GPIO_G2_STROBE_BIT;
GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
GPCR3 = SPITZ_GPIO_G3_STROBE_BIT;
GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
}
static inline void spitzkbd_activate_all(void)
{
/* STROBE ALL -> High */
GPSR0 = SPITZ_GPIO_G0_STROBE_BIT;
GPDR0 |= SPITZ_GPIO_G0_STROBE_BIT;
GPSR1 = SPITZ_GPIO_G1_STROBE_BIT;
GPDR1 |= SPITZ_GPIO_G1_STROBE_BIT;
GPSR2 = SPITZ_GPIO_G2_STROBE_BIT;
GPDR2 |= SPITZ_GPIO_G2_STROBE_BIT;
GPSR3 = SPITZ_GPIO_G3_STROBE_BIT;
GPDR3 |= SPITZ_GPIO_G3_STROBE_BIT;
udelay(KB_DISCHARGE_DELAY);
/* Clear any interrupts we may have triggered when altering the GPIO lines */
GEDR0 = SPITZ_GPIO_G0_SENSE_BIT;
GEDR1 = SPITZ_GPIO_G1_SENSE_BIT;
GEDR2 = SPITZ_GPIO_G2_SENSE_BIT;
GEDR3 = SPITZ_GPIO_G3_SENSE_BIT;
}
static inline void spitzkbd_activate_col(int col)
{
int gpio = spitz_strobes[col];
GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
GPSR(gpio) = GPIO_bit(gpio);
GPDR(gpio) |= GPIO_bit(gpio);
}
static inline void spitzkbd_reset_col(int col)
{
int gpio = spitz_strobes[col];
GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
GPCR(gpio) = GPIO_bit(gpio);
GPDR(gpio) |= GPIO_bit(gpio);
}
static inline int spitzkbd_get_row_status(int col)
{
return ((GPLR0 >> 12) & 0x01) | ((GPLR0 >> 16) & 0x02)
| ((GPLR2 >> 25) & 0x04) | ((GPLR1 << 1) & 0x08)
| ((GPLR1 >> 0) & 0x10) | ((GPLR1 >> 1) & 0x60);
}
/*
* The spitz keyboard only generates interrupts when a key is pressed.
* When a key is pressed, we enable a timer which then scans the
* keyboard to detect when the key is released.
*/
/* Scan the hardware keyboard and push any changes up through the input layer */
static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data)
{
unsigned int row, col, rowd;
unsigned long flags;
unsigned int num_pressed, pwrkey = ((GPLR(SPITZ_GPIO_ON_KEY) & GPIO_bit(SPITZ_GPIO_ON_KEY)) != 0);
if (spitzkbd_data->suspended)
return;
spin_lock_irqsave(&spitzkbd_data->lock, flags);
num_pressed = 0;
for (col = 0; col < KB_COLS; col++) {
/*
* Discharge the output driver capacitatance
* in the keyboard matrix. (Yes it is significant..)
*/
spitzkbd_discharge_all();
udelay(KB_DISCHARGE_DELAY);
spitzkbd_activate_col(col);
udelay(KB_ACTIVATE_DELAY);
rowd = spitzkbd_get_row_status(col);
for (row = 0; row < KB_ROWS; row++) {
unsigned int scancode, pressed;
scancode = SCANCODE(row, col);
pressed = rowd & KB_ROWMASK(row);
input_report_key(spitzkbd_data->input, spitzkbd_data->keycode[scancode], pressed);
if (pressed)
num_pressed++;
}
spitzkbd_reset_col(col);
}
spitzkbd_activate_all();
input_report_key(spitzkbd_data->input, SPITZ_KEY_SYNC, (GPLR(SPITZ_GPIO_SYNC) & GPIO_bit(SPITZ_GPIO_SYNC)) != 0 );
input_report_key(spitzkbd_data->input, KEY_SUSPEND, pwrkey);
if (pwrkey && time_after(jiffies, spitzkbd_data->suspend_jiffies + msecs_to_jiffies(1000))) {
input_event(spitzkbd_data->input, EV_PWR, KEY_SUSPEND, 1);
spitzkbd_data->suspend_jiffies = jiffies;
}
input_sync(spitzkbd_data->input);
/* if any keys are pressed, enable the timer */
if (num_pressed)
mod_timer(&spitzkbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL));
spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
}
/*
* spitz keyboard interrupt handler.
*/
static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id)
{
struct spitzkbd *spitzkbd_data = dev_id;
if (!timer_pending(&spitzkbd_data->timer)) {
/** wait chattering delay **/
udelay(20);
spitzkbd_scankeyboard(spitzkbd_data);
}
return IRQ_HANDLED;
}
/*
* spitz timer checking for released keys
*/
static void spitzkbd_timer_callback(unsigned long data)
{
struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
spitzkbd_scankeyboard(spitzkbd_data);
}
/*
* The hinge switches generate an interrupt.
* We debounce the switches and pass them to the input system.
*/
static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id)
{
struct spitzkbd *spitzkbd_data = dev_id;
if (!timer_pending(&spitzkbd_data->htimer))
mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
return IRQ_HANDLED;
}
#define HINGE_STABLE_COUNT 2
static int sharpsl_hinge_state;
static int hinge_count;
static void spitzkbd_hinge_timer(unsigned long data)
{
struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
unsigned long state;
unsigned long flags;
state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB));
state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT));
if (state != sharpsl_hinge_state) {
hinge_count = 0;
sharpsl_hinge_state = state;
} else if (hinge_count < HINGE_STABLE_COUNT) {
hinge_count++;
}
if (hinge_count >= HINGE_STABLE_COUNT) {
spin_lock_irqsave(&spitzkbd_data->lock, flags);
input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0));
input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0));
input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0));
input_sync(spitzkbd_data->input);
spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
} else {
mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
}
}
#ifdef CONFIG_PM
static int spitzkbd_suspend(struct platform_device *dev, pm_message_t state)
{
int i;
struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
spitzkbd->suspended = 1;
/* Set Strobe lines as inputs - *except* strobe line 0 leave this
enabled so we can detect a power button press for resume */
for (i = 1; i < SPITZ_KEY_STROBE_NUM; i++)
pxa_gpio_mode(spitz_strobes[i] | GPIO_IN);
return 0;
}
static int spitzkbd_resume(struct platform_device *dev)
{
int i;
struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++)
pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH);
/* Upon resume, ignore the suspend key for a short while */
spitzkbd->suspend_jiffies = jiffies;
spitzkbd->suspended = 0;
return 0;
}
#else
#define spitzkbd_suspend NULL
#define spitzkbd_resume NULL
#endif
static int __devinit spitzkbd_probe(struct platform_device *dev)
{
struct spitzkbd *spitzkbd;
struct input_dev *input_dev;
int i, err = -ENOMEM;
spitzkbd = kzalloc(sizeof(struct spitzkbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!spitzkbd || !input_dev)
goto fail;
platform_set_drvdata(dev, spitzkbd);
strcpy(spitzkbd->phys, "spitzkbd/input0");
spin_lock_init(&spitzkbd->lock);
/* Init Keyboard rescan timer */
init_timer(&spitzkbd->timer);
spitzkbd->timer.function = spitzkbd_timer_callback;
spitzkbd->timer.data = (unsigned long) spitzkbd;
/* Init Hinge Timer */
init_timer(&spitzkbd->htimer);
spitzkbd->htimer.function = spitzkbd_hinge_timer;
spitzkbd->htimer.data = (unsigned long) spitzkbd;
spitzkbd->suspend_jiffies = jiffies;
spitzkbd->input = input_dev;
input_dev->name = "Spitz Keyboard";
input_dev->phys = spitzkbd->phys;
input_dev->dev.parent = &dev->dev;
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
BIT_MASK(EV_PWR) | BIT_MASK(EV_SW);
input_dev->keycode = spitzkbd->keycode;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(spitzkbd_keycode);
memcpy(spitzkbd->keycode, spitzkbd_keycode, sizeof(spitzkbd->keycode));
for (i = 0; i < ARRAY_SIZE(spitzkbd_keycode); i++)
set_bit(spitzkbd->keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
set_bit(KEY_SUSPEND, input_dev->keybit);
set_bit(SW_LID, input_dev->swbit);
set_bit(SW_TABLET_MODE, input_dev->swbit);
set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
err = input_register_device(input_dev);
if (err)
goto fail;
mod_timer(&spitzkbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) {
pxa_gpio_mode(spitz_senses[i] | GPIO_IN);
if (request_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd_interrupt,
IRQF_DISABLED|IRQF_TRIGGER_RISING,
"Spitzkbd Sense", spitzkbd))
printk(KERN_WARNING "spitzkbd: Can't get Sense IRQ: %d!\n", i);
}
/* Set Strobe lines as outputs - set high */
for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++)
pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH);
pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_ON_KEY | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_SWA | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_SWB | GPIO_IN);
request_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Spitzkbd Sync", spitzkbd);
request_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Spitzkbd PwrOn", spitzkbd);
request_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd_hinge_isr,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Spitzkbd SWA", spitzkbd);
request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Spitzkbd SWB", spitzkbd);
request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr,
IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"Spitzkbd HP", spitzkbd);
return 0;
fail: input_free_device(input_dev);
kfree(spitzkbd);
return err;
}
static int __devexit spitzkbd_remove(struct platform_device *dev)
{
int i;
struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++)
free_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd);
free_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd);
free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd);
free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd);
free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd);
free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd);
del_timer_sync(&spitzkbd->htimer);
del_timer_sync(&spitzkbd->timer);
input_unregister_device(spitzkbd->input);
kfree(spitzkbd);
return 0;
}
static struct platform_driver spitzkbd_driver = {
.probe = spitzkbd_probe,
.remove = __devexit_p(spitzkbd_remove),
.suspend = spitzkbd_suspend,
.resume = spitzkbd_resume,
.driver = {
.name = "spitz-keyboard",
.owner = THIS_MODULE,
},
};
static int __init spitzkbd_init(void)
{
return platform_driver_register(&spitzkbd_driver);
}
static void __exit spitzkbd_exit(void)
{
platform_driver_unregister(&spitzkbd_driver);
}
module_init(spitzkbd_init);
module_exit(spitzkbd_exit);
MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
MODULE_DESCRIPTION("Spitz Keyboard Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:spitz-keyboard");

431
drivers/input/keyboard/tosakbd.c
View File

@@ -1,431 +0,0 @@
/*
* Keyboard driver for Sharp Tosa models (SL-6000x)
*
* Copyright (c) 2005 Dirk Opfer
* Copyright (c) 2007 Dmitry Baryshkov
*
* Based on xtkbd.c/locomkbd.c/corgikbd.c
*
* 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.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <mach/gpio.h>
#include <mach/tosa.h>
#define KB_ROWMASK(r) (1 << (r))
#define SCANCODE(r, c) (((r)<<4) + (c) + 1)
#define NR_SCANCODES SCANCODE(TOSA_KEY_SENSE_NUM - 1, TOSA_KEY_STROBE_NUM - 1) + 1
#define SCAN_INTERVAL (HZ/10)
#define KB_DISCHARGE_DELAY 10
#define KB_ACTIVATE_DELAY 10
static unsigned short tosakbd_keycode[NR_SCANCODES] = {
0,
0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P,
0, 0, 0, 0, 0, 0, 0, 0,
KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA,
0, 0, 0, 0, 0, 0, 0, 0,
KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT,
0, 0, 0, 0, 0, 0, 0, 0,
KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESSBOOK, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK,
KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, 0,
KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDAR, TOSA_KEY_HOMEPAGE, KEY_LEFTCTRL, TOSA_KEY_LIGHT,
0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0,
KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0,
0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0,
KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT,
0, 0, 0,
};
struct tosakbd {
unsigned short keycode[ARRAY_SIZE(tosakbd_keycode)];
struct input_dev *input;
bool suspended;
spinlock_t lock; /* protect kbd scanning */
struct timer_list timer;
};
/* Helper functions for reading the keyboard matrix
* Note: We should really be using the generic gpio functions to alter
* GPDR but it requires a function call per GPIO bit which is
* excessive when we need to access 12 bits at once, multiple times.
* These functions must be called within local_irq_save()/local_irq_restore()
* or similar.
*/
#define GET_ROWS_STATUS(c) ((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT)
static inline void tosakbd_discharge_all(void)
{
/* STROBE All HiZ */
GPCR1 = TOSA_GPIO_HIGH_STROBE_BIT;
GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT;
GPCR2 = TOSA_GPIO_LOW_STROBE_BIT;
GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT;
}
static inline void tosakbd_activate_all(void)
{
/* STROBE ALL -> High */
GPSR1 = TOSA_GPIO_HIGH_STROBE_BIT;
GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT;
GPSR2 = TOSA_GPIO_LOW_STROBE_BIT;
GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT;
udelay(KB_DISCHARGE_DELAY);
/* STATE CLEAR */
GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT;
}
static inline void tosakbd_activate_col(int col)
{
if (col <= 5) {
/* STROBE col -> High, not col -> HiZ */
GPSR1 = TOSA_GPIO_STROBE_BIT(col);
GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
} else {
/* STROBE col -> High, not col -> HiZ */
GPSR2 = TOSA_GPIO_STROBE_BIT(col);
GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
}
}
static inline void tosakbd_reset_col(int col)
{
if (col <= 5) {
/* STROBE col -> Low */
GPCR1 = TOSA_GPIO_STROBE_BIT(col);
/* STROBE col -> out, not col -> HiZ */
GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
} else {
/* STROBE col -> Low */
GPCR2 = TOSA_GPIO_STROBE_BIT(col);
/* STROBE col -> out, not col -> HiZ */
GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
}
}
/*
* The tosa keyboard only generates interrupts when a key is pressed.
* So when a key is pressed, we enable a timer. This timer scans the
* keyboard, and this is how we detect when the key is released.
*/
/* Scan the hardware keyboard and push any changes up through the input layer */
static void tosakbd_scankeyboard(struct platform_device *dev)
{
struct tosakbd *tosakbd = platform_get_drvdata(dev);
unsigned int row, col, rowd;
unsigned long flags;
unsigned int num_pressed = 0;
spin_lock_irqsave(&tosakbd->lock, flags);
if (tosakbd->suspended)
goto out;
for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) {
/*
* Discharge the output driver capacitatance
* in the keyboard matrix. (Yes it is significant..)
*/
tosakbd_discharge_all();
udelay(KB_DISCHARGE_DELAY);
tosakbd_activate_col(col);
udelay(KB_ACTIVATE_DELAY);
rowd = GET_ROWS_STATUS(col);
for (row = 0; row < TOSA_KEY_SENSE_NUM; row++) {
unsigned int scancode, pressed;
scancode = SCANCODE(row, col);
pressed = rowd & KB_ROWMASK(row);
if (pressed && !tosakbd->keycode[scancode])
dev_warn(&dev->dev,
"unhandled scancode: 0x%02x\n",
scancode);
input_report_key(tosakbd->input,
tosakbd->keycode[scancode],
pressed);
if (pressed)
num_pressed++;
}
tosakbd_reset_col(col);
}
tosakbd_activate_all();
input_sync(tosakbd->input);
/* if any keys are pressed, enable the timer */
if (num_pressed)
mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL);
out:
spin_unlock_irqrestore(&tosakbd->lock, flags);
}
/*
* tosa keyboard interrupt handler.
*/
static irqreturn_t tosakbd_interrupt(int irq, void *__dev)
{
struct platform_device *dev = __dev;
struct tosakbd *tosakbd = platform_get_drvdata(dev);
if (!timer_pending(&tosakbd->timer)) {
/** wait chattering delay **/
udelay(20);
tosakbd_scankeyboard(dev);
}
return IRQ_HANDLED;
}
/*
* tosa timer checking for released keys
*/
static void tosakbd_timer_callback(unsigned long __dev)
{
struct platform_device *dev = (struct platform_device *)__dev;
tosakbd_scankeyboard(dev);
}
#ifdef CONFIG_PM
static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
{
struct tosakbd *tosakbd = platform_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&tosakbd->lock, flags);
tosakbd->suspended = true;
spin_unlock_irqrestore(&tosakbd->lock, flags);
del_timer_sync(&tosakbd->timer);
return 0;
}
static int tosakbd_resume(struct platform_device *dev)
{
struct tosakbd *tosakbd = platform_get_drvdata(dev);
tosakbd->suspended = false;
tosakbd_scankeyboard(dev);
return 0;
}
#else
#define tosakbd_suspend NULL
#define tosakbd_resume NULL
#endif
static int __devinit tosakbd_probe(struct platform_device *pdev) {
int i;
struct tosakbd *tosakbd;
struct input_dev *input_dev;
int error;
tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL);
if (!tosakbd)
return -ENOMEM;
input_dev = input_allocate_device();
if (!input_dev) {
kfree(tosakbd);
return -ENOMEM;
}
platform_set_drvdata(pdev, tosakbd);
spin_lock_init(&tosakbd->lock);
/* Init Keyboard rescan timer */
init_timer(&tosakbd->timer);
tosakbd->timer.function = tosakbd_timer_callback;
tosakbd->timer.data = (unsigned long) pdev;
tosakbd->input = input_dev;
input_set_drvdata(input_dev, tosakbd);
input_dev->name = "Tosa Keyboard";
input_dev->phys = "tosakbd/input0";
input_dev->dev.parent = &pdev->dev;
input_dev->id.bustype = BUS_HOST;
input_dev->id.vendor = 0x0001;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
input_dev->keycode = tosakbd->keycode;
input_dev->keycodesize = sizeof(tosakbd->keycode[0]);
input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode);
memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd_keycode));
for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++)
__set_bit(tosakbd->keycode[i], input_dev->keybit);
__clear_bit(KEY_RESERVED, input_dev->keybit);
/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) {
int gpio = TOSA_GPIO_KEY_SENSE(i);
int irq;
error = gpio_request(gpio, "tosakbd");
if (error < 0) {
printk(KERN_ERR "tosakbd: failed to request GPIO %d, "
" error %d\n", gpio, error);
goto fail;
}
error = gpio_direction_input(TOSA_GPIO_KEY_SENSE(i));
if (error < 0) {
printk(KERN_ERR "tosakbd: failed to configure input"
" direction for GPIO %d, error %d\n",
gpio, error);
gpio_free(gpio);
goto fail;
}
irq = gpio_to_irq(gpio);
if (irq < 0) {
error = irq;
printk(KERN_ERR "gpio-keys: Unable to get irq number"
" for GPIO %d, error %d\n",
gpio, error);
gpio_free(gpio);
goto fail;
}
error = request_irq(irq, tosakbd_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING,
"tosakbd", pdev);
if (error) {
printk("tosakbd: Can't get IRQ: %d: error %d!\n",
irq, error);
gpio_free(gpio);
goto fail;
}
}
/* Set Strobe lines as outputs - set high */
for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) {
int gpio = TOSA_GPIO_KEY_STROBE(i);
error = gpio_request(gpio, "tosakbd");
if (error < 0) {
printk(KERN_ERR "tosakbd: failed to request GPIO %d, "
" error %d\n", gpio, error);
goto fail2;
}
error = gpio_direction_output(gpio, 1);
if (error < 0) {
printk(KERN_ERR "tosakbd: failed to configure input"
" direction for GPIO %d, error %d\n",
gpio, error);
gpio_free(gpio);
goto fail2;
}
}
error = input_register_device(input_dev);
if (error) {
printk(KERN_ERR "tosakbd: Unable to register input device, "
"error: %d\n", error);
goto fail2;
}
printk(KERN_INFO "input: Tosa Keyboard Registered\n");
return 0;
fail2:
while (--i >= 0)
gpio_free(TOSA_GPIO_KEY_STROBE(i));
i = TOSA_KEY_SENSE_NUM;
fail:
while (--i >= 0) {
free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), pdev);
gpio_free(TOSA_GPIO_KEY_SENSE(i));
}
platform_set_drvdata(pdev, NULL);
input_free_device(input_dev);
kfree(tosakbd);
return error;
}
static int __devexit tosakbd_remove(struct platform_device *dev)
{
int i;
struct tosakbd *tosakbd = platform_get_drvdata(dev);
for (i = 0; i < TOSA_KEY_STROBE_NUM; i++)
gpio_free(TOSA_GPIO_KEY_STROBE(i));
for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) {
free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), dev);
gpio_free(TOSA_GPIO_KEY_SENSE(i));
}
del_timer_sync(&tosakbd->timer);
input_unregister_device(tosakbd->input);
kfree(tosakbd);
return 0;
}
static struct platform_driver tosakbd_driver = {
.probe = tosakbd_probe,
.remove = __devexit_p(tosakbd_remove),
.suspend = tosakbd_suspend,
.resume = tosakbd_resume,
.driver = {
.name = "tosa-keyboard",
.owner = THIS_MODULE,
},
};
static int __devinit tosakbd_init(void)
{
return platform_driver_register(&tosakbd_driver);
}
static void __exit tosakbd_exit(void)
{
platform_driver_unregister(&tosakbd_driver);
}
module_init(tosakbd_init);
module_exit(tosakbd_exit);
MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
MODULE_DESCRIPTION("Tosa Keyboard Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tosa-keyboard");