----------------------------
-What: corgikbd, spitzkbd, tosakbd driver
-When: 2.6.35
-Files: drivers/input/keyboard/{corgi,spitz,tosa}kbd.c
-Why: We now have a generic GPIO based matrix keyboard driver that
- are fully capable of handling all the keys on these devices.
- The original drivers manipulate the GPIO registers directly
- and so are difficult to maintain.
-Who: Eric Miao <eric.y.miao@gmail.com>
-
-----------------------------
-
What: capifs
When: February 2011
Files: drivers/isdn/capi/capifs.*
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
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
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_XTKBD
tristate "XT keyboard"
select SERIO
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-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o
obj-$(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
+++ /dev/null
-/*
- * 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");
+++ /dev/null
-/*
- * 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");
+++ /dev/null
-/*
- * 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");
projects / platform / kernel / linux-stable.git / commitdiff