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-rw-r--r--drivers/input/keyboard/Kconfig29
-rw-r--r--drivers/input/keyboard/Makefile3
-rw-r--r--drivers/input/keyboard/atkbd.c91
-rw-r--r--drivers/input/keyboard/lkkbd.c1
-rw-r--r--drivers/input/keyboard/pxa27x_keyboard.c274
-rw-r--r--drivers/input/keyboard/pxa27x_keypad.c572
-rw-r--r--drivers/input/keyboard/tosakbd.c415
7 files changed, 1086 insertions, 299 deletions
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 086d58c0ccbe..8ea709be3306 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -154,6 +154,27 @@ config KEYBOARD_SPITZ
To compile this driver as a module, choose M here: the
module will be called spitzkbd.
+config KEYBOARD_TOSA
+ tristate "Tosa keyboard"
+ depends on MACH_TOSA
+ default y
+ help
+ Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
+
+ 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
+ default n
+ 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_AMIGA
tristate "Amiga keyboard"
depends on AMIGA
@@ -239,13 +260,13 @@ config KEYBOARD_OMAP
module will be called omap-keypad.
config KEYBOARD_PXA27x
- tristate "PXA27x keyboard support"
- depends on PXA27x
+ tristate "PXA27x/PXA3xx keypad support"
+ depends on PXA27x || PXA3xx
help
- Enable support for PXA27x matrix keyboard controller
+ Enable support for PXA27x/PXA3xx keypad controller
To compile this driver as a module, choose M here: the
- module will be called pxa27x_keyboard.
+ module will be called pxa27x_keypad.
config KEYBOARD_AAED2000
tristate "AAED-2000 keyboard"
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index e97455fdcc83..e741f4031012 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -15,10 +15,11 @@ obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
+obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o
obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o
obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
-obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keyboard.o
+obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o
obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o
obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index b39c5b31e620..4a95adc4cc78 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -19,7 +19,6 @@
#include <linux/delay.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
@@ -28,6 +27,7 @@
#include <linux/workqueue.h>
#include <linux/libps2.h>
#include <linux/mutex.h>
+#include <linux/dmi.h>
#define DRIVER_DESC "AT and PS/2 keyboard driver"
@@ -201,6 +201,7 @@ struct atkbd {
unsigned short id;
unsigned char keycode[512];
+ DECLARE_BITMAP(force_release_mask, 512);
unsigned char set;
unsigned char translated;
unsigned char extra;
@@ -225,6 +226,11 @@ struct atkbd {
unsigned long event_mask;
};
+/*
+ * System-specific ketymap fixup routine
+ */
+static void (*atkbd_platform_fixup)(struct atkbd *);
+
static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
ssize_t (*handler)(struct atkbd *, char *));
static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
@@ -349,7 +355,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
struct atkbd *atkbd = serio_get_drvdata(serio);
struct input_dev *dev = atkbd->dev;
unsigned int code = data;
- int scroll = 0, hscroll = 0, click = -1, add_release_event = 0;
+ int scroll = 0, hscroll = 0, click = -1;
int value;
unsigned char keycode;
@@ -414,14 +420,6 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
"Some program might be trying access hardware directly.\n",
data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
goto out;
- case ATKBD_RET_HANGEUL:
- case ATKBD_RET_HANJA:
- /*
- * These keys do not report release and thus need to be
- * flagged properly
- */
- add_release_event = 1;
- break;
case ATKBD_RET_ERR:
atkbd->err_count++;
#ifdef ATKBD_DEBUG
@@ -491,7 +489,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
input_event(dev, EV_KEY, keycode, value);
input_sync(dev);
- if (value && add_release_event) {
+ if (value && test_bit(code, atkbd->force_release_mask)) {
input_report_key(dev, keycode, 0);
input_sync(dev);
}
@@ -824,7 +822,6 @@ static void atkbd_disconnect(struct serio *serio)
atkbd_disable(atkbd);
/* make sure we don't have a command in flight */
- synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */
flush_scheduled_work();
sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
@@ -834,6 +831,22 @@ static void atkbd_disconnect(struct serio *serio)
kfree(atkbd);
}
+/*
+ * Most special keys (Fn+F?) on Dell Latitudes do not generate release
+ * events so we have to do it ourselves.
+ */
+static void atkbd_latitude_keymap_fixup(struct atkbd *atkbd)
+{
+ const unsigned int forced_release_keys[] = {
+ 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
+ };
+ int i;
+
+ if (atkbd->set == 2)
+ for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
+ __set_bit(forced_release_keys[i],
+ atkbd->force_release_mask);
+}
/*
* atkbd_set_keycode_table() initializes keyboard's keycode table
@@ -842,17 +855,20 @@ static void atkbd_disconnect(struct serio *serio)
static void atkbd_set_keycode_table(struct atkbd *atkbd)
{
+ unsigned int scancode;
int i, j;
memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
+ bitmap_zero(atkbd->force_release_mask, 512);
if (atkbd->translated) {
for (i = 0; i < 128; i++) {
- atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]];
- atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80];
+ scancode = atkbd_unxlate_table[i];
+ atkbd->keycode[i] = atkbd_set2_keycode[scancode];
+ atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
if (atkbd->scroll)
for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
- if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2)
+ if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
}
} else if (atkbd->set == 3) {
@@ -861,12 +877,29 @@ static void atkbd_set_keycode_table(struct atkbd *atkbd)
memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
if (atkbd->scroll)
- for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++)
- atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode;
+ for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
+ scancode = atkbd_scroll_keys[i].set2;
+ atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
+ }
}
- atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL;
- atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA;
+/*
+ * HANGEUL and HANJA keys do not send release events so we need to
+ * generate such events ourselves
+ */
+ scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
+ atkbd->keycode[scancode] = KEY_HANGEUL;
+ __set_bit(scancode, atkbd->force_release_mask);
+
+ scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
+ atkbd->keycode[scancode] = KEY_HANJA;
+ __set_bit(scancode, atkbd->force_release_mask);
+
+/*
+ * Perform additional fixups
+ */
+ if (atkbd_platform_fixup)
+ atkbd_platform_fixup(atkbd);
}
/*
@@ -1401,9 +1434,29 @@ static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
return sprintf(buf, "%lu\n", atkbd->err_count);
}
+static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
+{
+ atkbd_platform_fixup = id->driver_data;
+ return 0;
+}
+
+static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
+ {
+ .ident = "Dell Latitude series",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ .callback = atkbd_setup_fixup,
+ .driver_data = atkbd_latitude_keymap_fixup,
+ },
+ { }
+};
static int __init atkbd_init(void)
{
+ dmi_check_system(atkbd_dmi_quirk_table);
+
return serio_register_driver(&atkbd_drv);
}
diff --git a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c
index 1b08f4e79dd2..32e2c2605d95 100644
--- a/drivers/input/keyboard/lkkbd.c
+++ b/drivers/input/keyboard/lkkbd.c
@@ -64,7 +64,6 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/input.h>
diff --git a/drivers/input/keyboard/pxa27x_keyboard.c b/drivers/input/keyboard/pxa27x_keyboard.c
deleted file mode 100644
index bdd64ee4c5c8..000000000000
--- a/drivers/input/keyboard/pxa27x_keyboard.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * linux/drivers/input/keyboard/pxa27x_keyboard.c
- *
- * Driver for the pxa27x matrix keyboard controller.
- *
- * Created: Feb 22, 2007
- * Author: Rodolfo Giometti <giometti@linux.it>
- *
- * Based on a previous implementations by Kevin O'Connor
- * <kevin_at_koconnor.net> and Alex Osborne <bobofdoom@gmail.com> and
- * on some suggestions by Nicolas Pitre <nico@cam.org>.
- *
- * 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/init.h>
-#include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <asm/arch/hardware.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/pxa27x_keyboard.h>
-
-#define DRIVER_NAME "pxa27x-keyboard"
-
-#define KPASMKP(col) (col/2 == 0 ? KPASMKP0 : \
- col/2 == 1 ? KPASMKP1 : \
- col/2 == 2 ? KPASMKP2 : KPASMKP3)
-#define KPASMKPx_MKC(row, col) (1 << (row + 16 * (col % 2)))
-
-static struct clk *pxakbd_clk;
-
-static irqreturn_t pxakbd_irq_handler(int irq, void *dev_id)
-{
- struct platform_device *pdev = dev_id;
- struct pxa27x_keyboard_platform_data *pdata = pdev->dev.platform_data;
- struct input_dev *input_dev = platform_get_drvdata(pdev);
- unsigned long kpc = KPC;
- int p, row, col, rel;
-
- if (kpc & KPC_DI) {
- unsigned long kpdk = KPDK;
-
- if (!(kpdk & KPDK_DKP)) {
- /* better luck next time */
- } else if (kpc & KPC_REE0) {
- unsigned long kprec = KPREC;
- KPREC = 0x7f;
-
- if (kprec & KPREC_OF0)
- rel = (kprec & 0xff) + 0x7f;
- else if (kprec & KPREC_UF0)
- rel = (kprec & 0xff) - 0x7f - 0xff;
- else
- rel = (kprec & 0xff) - 0x7f;
-
- if (rel) {
- input_report_rel(input_dev, REL_WHEEL, rel);
- input_sync(input_dev);
- }
- }
- }
-
- if (kpc & KPC_MI) {
- /* report the status of every button */
- for (row = 0; row < pdata->nr_rows; row++) {
- for (col = 0; col < pdata->nr_cols; col++) {
- p = KPASMKP(col) & KPASMKPx_MKC(row, col) ?
- 1 : 0;
- pr_debug("keycode %x - pressed %x\n",
- pdata->keycodes[row][col], p);
- input_report_key(input_dev,
- pdata->keycodes[row][col], p);
- }
- }
- input_sync(input_dev);
- }
-
- return IRQ_HANDLED;
-}
-
-static int pxakbd_open(struct input_dev *dev)
-{
- /* Set keypad control register */
- KPC |= (KPC_ASACT |
- KPC_MS_ALL |
- (2 << 6) | KPC_REE0 | KPC_DK_DEB_SEL |
- KPC_ME | KPC_MIE | KPC_DE | KPC_DIE);
-
- KPC &= ~KPC_AS; /* disable automatic scan */
- KPC &= ~KPC_IMKP; /* do not ignore multiple keypresses */
-
- /* Set rotary count to mid-point value */
- KPREC = 0x7F;
-
- /* Enable unit clock */
- clk_enable(pxakbd_clk);
-
- return 0;
-}
-
-static void pxakbd_close(struct input_dev *dev)
-{
- /* Disable clock unit */
- clk_disable(pxakbd_clk);
-}
-
-#ifdef CONFIG_PM
-static int pxakbd_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct pxa27x_keyboard_platform_data *pdata = pdev->dev.platform_data;
-
- /* Save controller status */
- pdata->reg_kpc = KPC;
- pdata->reg_kprec = KPREC;
-
- return 0;
-}
-
-static int pxakbd_resume(struct platform_device *pdev)
-{
- struct pxa27x_keyboard_platform_data *pdata = pdev->dev.platform_data;
- struct input_dev *input_dev = platform_get_drvdata(pdev);
-
- mutex_lock(&input_dev->mutex);
-
- if (input_dev->users) {
- /* Restore controller status */
- KPC = pdata->reg_kpc;
- KPREC = pdata->reg_kprec;
-
- /* Enable unit clock */
- clk_disable(pxakbd_clk);
- clk_enable(pxakbd_clk);
- }
-
- mutex_unlock(&input_dev->mutex);
-
- return 0;
-}
-#else
-#define pxakbd_suspend NULL
-#define pxakbd_resume NULL
-#endif
-
-static int __devinit pxakbd_probe(struct platform_device *pdev)
-{
- struct pxa27x_keyboard_platform_data *pdata = pdev->dev.platform_data;
- struct input_dev *input_dev;
- int i, row, col, error;
-
- pxakbd_clk = clk_get(&pdev->dev, "KBDCLK");
- if (IS_ERR(pxakbd_clk)) {
- error = PTR_ERR(pxakbd_clk);
- goto err_clk;
- }
-
- /* Create and register the input driver. */
- input_dev = input_allocate_device();
- if (!input_dev) {
- printk(KERN_ERR "Cannot request keypad device\n");
- error = -ENOMEM;
- goto err_alloc;
- }
-
- input_dev->name = DRIVER_NAME;
- input_dev->id.bustype = BUS_HOST;
- input_dev->open = pxakbd_open;
- input_dev->close = pxakbd_close;
- input_dev->dev.parent = &pdev->dev;
-
- input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
- BIT_MASK(EV_REL);
- input_dev->relbit[BIT_WORD(REL_WHEEL)] = BIT_MASK(REL_WHEEL);
- for (row = 0; row < pdata->nr_rows; row++) {
- for (col = 0; col < pdata->nr_cols; col++) {
- int code = pdata->keycodes[row][col];
- if (code > 0)
- set_bit(code, input_dev->keybit);
- }
- }
-
- error = request_irq(IRQ_KEYPAD, pxakbd_irq_handler, IRQF_DISABLED,
- DRIVER_NAME, pdev);
- if (error) {
- printk(KERN_ERR "Cannot request keypad IRQ\n");
- goto err_free_dev;
- }
-
- platform_set_drvdata(pdev, input_dev);
-
- /* Register the input device */
- error = input_register_device(input_dev);
- if (error)
- goto err_free_irq;
-
- /* Setup GPIOs. */
- for (i = 0; i < pdata->nr_rows + pdata->nr_cols; i++)
- pxa_gpio_mode(pdata->gpio_modes[i]);
-
- /*
- * Store rows/cols info into keyboard registers.
- */
-
- KPC |= (pdata->nr_rows - 1) << 26;
- KPC |= (pdata->nr_cols - 1) << 23;
-
- for (col = 0; col < pdata->nr_cols; col++)
- KPC |= KPC_MS0 << col;
-
- return 0;
-
- err_free_irq:
- platform_set_drvdata(pdev, NULL);
- free_irq(IRQ_KEYPAD, pdev);
- err_free_dev:
- input_free_device(input_dev);
- err_alloc:
- clk_put(pxakbd_clk);
- err_clk:
- return error;
-}
-
-static int __devexit pxakbd_remove(struct platform_device *pdev)
-{
- struct input_dev *input_dev = platform_get_drvdata(pdev);
-
- input_unregister_device(input_dev);
- free_irq(IRQ_KEYPAD, pdev);
- clk_put(pxakbd_clk);
- platform_set_drvdata(pdev, NULL);
-
- return 0;
-}
-
-static struct platform_driver pxakbd_driver = {
- .probe = pxakbd_probe,
- .remove = __devexit_p(pxakbd_remove),
- .suspend = pxakbd_suspend,
- .resume = pxakbd_resume,
- .driver = {
- .name = DRIVER_NAME,
- },
-};
-
-static int __init pxakbd_init(void)
-{
- return platform_driver_register(&pxakbd_driver);
-}
-
-static void __exit pxakbd_exit(void)
-{
- platform_driver_unregister(&pxakbd_driver);
-}
-
-module_init(pxakbd_init);
-module_exit(pxakbd_exit);
-
-MODULE_DESCRIPTION("PXA27x Matrix Keyboard Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
new file mode 100644
index 000000000000..6224c2fb3b65
--- /dev/null
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -0,0 +1,572 @@
+/*
+ * linux/drivers/input/keyboard/pxa27x_keypad.c
+ *
+ * Driver for the pxa27x matrix keyboard controller.
+ *
+ * Created: Feb 22, 2007
+ * Author: Rodolfo Giometti <giometti@linux.it>
+ *
+ * Based on a previous implementations by Kevin O'Connor
+ * <kevin_at_koconnor.net> and Alex Osborne <bobofdoom@gmail.com> and
+ * on some suggestions by Nicolas Pitre <nico@cam.org>.
+ *
+ * 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/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa27x_keypad.h>
+
+/*
+ * Keypad Controller registers
+ */
+#define KPC 0x0000 /* Keypad Control register */
+#define KPDK 0x0008 /* Keypad Direct Key register */
+#define KPREC 0x0010 /* Keypad Rotary Encoder register */
+#define KPMK 0x0018 /* Keypad Matrix Key register */
+#define KPAS 0x0020 /* Keypad Automatic Scan register */
+
+/* Keypad Automatic Scan Multiple Key Presser register 0-3 */
+#define KPASMKP0 0x0028
+#define KPASMKP1 0x0030
+#define KPASMKP2 0x0038
+#define KPASMKP3 0x0040
+#define KPKDI 0x0048
+
+/* bit definitions */
+#define KPC_MKRN(n) ((((n) & 0x7) - 1) << 26) /* matrix key row number */
+#define KPC_MKCN(n) ((((n) & 0x7) - 1) << 23) /* matrix key column number */
+#define KPC_DKN(n) ((((n) & 0x7) - 1) << 6) /* direct key number */
+
+#define KPC_AS (0x1 << 30) /* Automatic Scan bit */
+#define KPC_ASACT (0x1 << 29) /* Automatic Scan on Activity */
+#define KPC_MI (0x1 << 22) /* Matrix interrupt bit */
+#define KPC_IMKP (0x1 << 21) /* Ignore Multiple Key Press */
+
+#define KPC_MS(n) (0x1 << (13 + (n))) /* Matrix scan line 'n' */
+#define KPC_MS_ALL (0xff << 13)
+
+#define KPC_ME (0x1 << 12) /* Matrix Keypad Enable */
+#define KPC_MIE (0x1 << 11) /* Matrix Interrupt Enable */
+#define KPC_DK_DEB_SEL (0x1 << 9) /* Direct Keypad Debounce Select */
+#define KPC_DI (0x1 << 5) /* Direct key interrupt bit */
+#define KPC_RE_ZERO_DEB (0x1 << 4) /* Rotary Encoder Zero Debounce */
+#define KPC_REE1 (0x1 << 3) /* Rotary Encoder1 Enable */
+#define KPC_REE0 (0x1 << 2) /* Rotary Encoder0 Enable */
+#define KPC_DE (0x1 << 1) /* Direct Keypad Enable */
+#define KPC_DIE (0x1 << 0) /* Direct Keypad interrupt Enable */
+
+#define KPDK_DKP (0x1 << 31)
+#define KPDK_DK(n) ((n) & 0xff)
+
+#define KPREC_OF1 (0x1 << 31)
+#define kPREC_UF1 (0x1 << 30)
+#define KPREC_OF0 (0x1 << 15)
+#define KPREC_UF0 (0x1 << 14)
+
+#define KPREC_RECOUNT0(n) ((n) & 0xff)
+#define KPREC_RECOUNT1(n) (((n) >> 16) & 0xff)
+
+#define KPMK_MKP (0x1 << 31)
+#define KPAS_SO (0x1 << 31)
+#define KPASMKPx_SO (0x1 << 31)
+
+#define KPAS_MUKP(n) (((n) >> 26) & 0x1f)
+#define KPAS_RP(n) (((n) >> 4) & 0xf)
+#define KPAS_CP(n) ((n) & 0xf)
+
+#define KPASMKP_MKC_MASK (0xff)
+
+#define keypad_readl(off) __raw_readl(keypad->mmio_base + (off))
+#define keypad_writel(off, v) __raw_writel((v), keypad->mmio_base + (off))
+
+#define MAX_MATRIX_KEY_NUM (8 * 8)
+
+struct pxa27x_keypad {
+ struct pxa27x_keypad_platform_data *pdata;
+
+ struct clk *clk;
+ struct input_dev *input_dev;
+ void __iomem *mmio_base;
+
+ /* matrix key code map */
+ unsigned int matrix_keycodes[MAX_MATRIX_KEY_NUM];
+
+ /* state row bits of each column scan */
+ uint32_t matrix_key_state[MAX_MATRIX_KEY_COLS];
+ uint32_t direct_key_state;
+
+ unsigned int direct_key_mask;
+
+ int rotary_rel_code[2];
+ int rotary_up_key[2];
+ int rotary_down_key[2];
+};
+
+static void pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned int *key;
+ int i;
+
+ key = &pdata->matrix_key_map[0];
+ for (i = 0; i < pdata->matrix_key_map_size; i++, key++) {
+ int row = ((*key) >> 28) & 0xf;
+ int col = ((*key) >> 24) & 0xf;
+ int code = (*key) & 0xffffff;
+
+ keypad->matrix_keycodes[(row << 3) + col] = code;
+ set_bit(code, input_dev->keybit);
+ }
+
+ keypad->rotary_up_key[0] = pdata->rotary0_up_key;
+ keypad->rotary_up_key[1] = pdata->rotary1_up_key;
+ keypad->rotary_down_key[0] = pdata->rotary0_down_key;
+ keypad->rotary_down_key[1] = pdata->rotary1_down_key;
+ keypad->rotary_rel_code[0] = pdata->rotary0_rel_code;
+ keypad->rotary_rel_code[1] = pdata->rotary1_rel_code;
+
+ if (pdata->rotary0_up_key && pdata->rotary0_down_key) {
+ set_bit(pdata->rotary0_up_key, input_dev->keybit);
+ set_bit(pdata->rotary0_down_key, input_dev->keybit);
+ } else
+ set_bit(pdata->rotary0_rel_code, input_dev->relbit);
+
+ if (pdata->rotary1_up_key && pdata->rotary1_down_key) {
+ set_bit(pdata->rotary1_up_key, input_dev->keybit);
+ set_bit(pdata->rotary1_down_key, input_dev->keybit);
+ } else
+ set_bit(pdata->rotary1_rel_code, input_dev->relbit);
+}
+
+static inline unsigned int lookup_matrix_keycode(
+ struct pxa27x_keypad *keypad, int row, int col)
+{
+ return keypad->matrix_keycodes[(row << 3) + col];
+}
+
+static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ int row, col, num_keys_pressed = 0;
+ uint32_t new_state[MAX_MATRIX_KEY_COLS];
+ uint32_t kpas = keypad_readl(KPAS);
+
+ num_keys_pressed = KPAS_MUKP(kpas);
+
+ memset(new_state, 0, sizeof(new_state));
+
+ if (num_keys_pressed == 0)
+ goto scan;
+
+ if (num_keys_pressed == 1) {
+ col = KPAS_CP(kpas);
+ row = KPAS_RP(kpas);
+
+ /* if invalid row/col, treat as no key pressed */
+ if (col >= pdata->matrix_key_cols ||
+ row >= pdata->matrix_key_rows)
+ goto scan;
+
+ new_state[col] = (1 << row);
+ goto scan;
+ }
+
+ if (num_keys_pressed > 1) {
+ uint32_t kpasmkp0 = keypad_readl(KPASMKP0);
+ uint32_t kpasmkp1 = keypad_readl(KPASMKP1);
+ uint32_t kpasmkp2 = keypad_readl(KPASMKP2);
+ uint32_t kpasmkp3 = keypad_readl(KPASMKP3);
+
+ new_state[0] = kpasmkp0 & KPASMKP_MKC_MASK;
+ new_state[1] = (kpasmkp0 >> 16) & KPASMKP_MKC_MASK;
+ new_state[2] = kpasmkp1 & KPASMKP_MKC_MASK;
+ new_state[3] = (kpasmkp1 >> 16) & KPASMKP_MKC_MASK;
+ new_state[4] = kpasmkp2 & KPASMKP_MKC_MASK;
+ new_state[5] = (kpasmkp2 >> 16) & KPASMKP_MKC_MASK;
+ new_state[6] = kpasmkp3 & KPASMKP_MKC_MASK;
+ new_state[7] = (kpasmkp3 >> 16) & KPASMKP_MKC_MASK;
+ }
+scan:
+ for (col = 0; col < pdata->matrix_key_cols; col++) {
+ uint32_t bits_changed;
+
+ bits_changed = keypad->matrix_key_state[col] ^ new_state[col];
+ if (bits_changed == 0)
+ continue;
+
+ for (row = 0; row < pdata->matrix_key_rows; row++) {
+ if ((bits_changed & (1 << row)) == 0)
+ continue;
+
+ input_report_key(keypad->input_dev,
+ lookup_matrix_keycode(keypad, row, col),
+ new_state[col] & (1 << row));
+ }
+ }
+ input_sync(keypad->input_dev);
+ memcpy(keypad->matrix_key_state, new_state, sizeof(new_state));
+}
+
+#define DEFAULT_KPREC (0x007f007f)
+
+static inline int rotary_delta(uint32_t kprec)
+{
+ if (kprec & KPREC_OF0)
+ return (kprec & 0xff) + 0x7f;
+ else if (kprec & KPREC_UF0)
+ return (kprec & 0xff) - 0x7f - 0xff;
+ else
+ return (kprec & 0xff) - 0x7f;
+}
+
+static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta)
+{
+ struct input_dev *dev = keypad->input_dev;
+
+ if (delta == 0)
+ return;
+
+ if (keypad->rotary_up_key[r] && keypad->rotary_down_key[r]) {
+ int keycode = (delta > 0) ? keypad->rotary_up_key[r] :
+ keypad->rotary_down_key[r];
+
+ /* simulate a press-n-release */
+ input_report_key(dev, keycode, 1);
+ input_sync(dev);
+ input_report_key(dev, keycode, 0);
+ input_sync(dev);
+ } else {
+ input_report_rel(dev, keypad->rotary_rel_code[r], delta);
+ input_sync(dev);
+ }
+}
+
+static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ uint32_t kprec;
+
+ /* read and reset to default count value */
+ kprec = keypad_readl(KPREC);
+ keypad_writel(KPREC, DEFAULT_KPREC);
+
+ if (pdata->enable_rotary0)
+ report_rotary_event(keypad, 0, rotary_delta(kprec));
+
+ if (pdata->enable_rotary1)
+ report_rotary_event(keypad, 1, rotary_delta(kprec >> 16));
+}
+
+static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int new_state;
+ uint32_t kpdk, bits_changed;
+ int i;
+
+ kpdk = keypad_readl(KPDK);
+
+ if (pdata->enable_rotary0 || pdata->enable_rotary1)
+ pxa27x_keypad_scan_rotary(keypad);
+
+ if (pdata->direct_key_map == NULL)
+ return;
+
+ new_state = KPDK_DK(kpdk) & keypad->direct_key_mask;
+ bits_changed = keypad->direct_key_state ^ new_state;
+
+ if (bits_changed == 0)
+ return;
+
+ for (i = 0; i < pdata->direct_key_num; i++) {
+ if (bits_changed & (1 << i))
+ input_report_key(keypad->input_dev,
+ pdata->direct_key_map[i],
+ (new_state & (1 << i)));
+ }
+ input_sync(keypad->input_dev);
+ keypad->direct_key_state = new_state;
+}
+
+static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id)
+{
+ struct pxa27x_keypad *keypad = dev_id;
+ unsigned long kpc = keypad_readl(KPC);
+
+ if (kpc & KPC_DI)
+ pxa27x_keypad_scan_direct(keypad);
+
+ if (kpc & KPC_MI)
+ pxa27x_keypad_scan_matrix(keypad);
+
+ return IRQ_HANDLED;
+}
+
+static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int mask = 0, direct_key_num = 0;
+ unsigned long kpc = 0;
+
+ /* enable matrix keys with automatic scan */
+ if (pdata->matrix_key_rows && pdata->matrix_key_cols) {
+ kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL;
+ kpc |= KPC_MKRN(pdata->matrix_key_rows) |
+ KPC_MKCN(pdata->matrix_key_cols);
+ }
+
+ /* enable rotary key, debounce interval same as direct keys */
+ if (pdata->enable_rotary0) {
+ mask |= 0x03;
+ direct_key_num = 2;
+ kpc |= KPC_REE0;
+ }
+
+ if (pdata->enable_rotary1) {
+ mask |= 0x0c;
+ direct_key_num = 4;
+ kpc |= KPC_REE1;
+ }
+
+ if (pdata->direct_key_num > direct_key_num)
+ direct_key_num = pdata->direct_key_num;
+
+ keypad->direct_key_mask = ((2 << direct_key_num) - 1) & ~mask;
+
+ /* enable direct key */
+ if (direct_key_num)
+ kpc |= KPC_DE | KPC_DIE | KPC_DKN(direct_key_num);
+
+ keypad_writel(KPC, kpc | KPC_RE_ZERO_DEB);
+ keypad_writel(KPREC, DEFAULT_KPREC);
+ keypad_writel(KPKDI, pdata->debounce_interval);
+}
+
+static int pxa27x_keypad_open(struct input_dev *dev)
+{
+ struct pxa27x_keypad *keypad = input_get_drvdata(dev);
+
+ /* Enable unit clock */
+ clk_enable(keypad->clk);
+ pxa27x_keypad_config(keypad);
+
+ return 0;
+}
+
+static void pxa27x_keypad_close(struct input_dev *dev)
+{
+ struct pxa27x_keypad *keypad = input_get_drvdata(dev);
+
+ /* Disable clock unit */
+ clk_disable(keypad->clk);
+}
+
+#ifdef CONFIG_PM
+static int pxa27x_keypad_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+
+ clk_disable(keypad->clk);
+ return 0;
+}
+
+static int pxa27x_keypad_resume(struct platform_device *pdev)
+{
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users) {
+ /* Enable unit clock */
+ clk_enable(keypad->clk);
+ pxa27x_keypad_config(keypad);
+ }
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+#else
+#define pxa27x_keypad_suspend NULL
+#define pxa27x_keypad_resume NULL
+#endif
+
+#define res_size(res) ((res)->end - (res)->start + 1)
+
+static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
+{
+ struct pxa27x_keypad *keypad;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq, error;
+
+ keypad = kzalloc(sizeof(struct pxa27x_keypad), GFP_KERNEL);
+ if (keypad == NULL) {
+ dev_err(&pdev->dev, "failed to allocate driver data\n");
+ return -ENOMEM;
+ }
+
+ keypad->pdata = pdev->dev.platform_data;
+ if (keypad->pdata == NULL) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ error = -EINVAL;
+ goto failed_free;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get keypad irq\n");
+ error = -ENXIO;
+ goto failed_free;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ error = -ENXIO;
+ goto failed_free;
+ }
+
+ res = request_mem_region(res->start, res_size(res), pdev->name);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ error = -EBUSY;
+ goto failed_free;
+ }
+
+ keypad->mmio_base = ioremap(res->start, res_size(res));
+ if (keypad->mmio_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto failed_free_mem;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, "KBDCLK");
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get keypad clock\n");
+ error = PTR_ERR(keypad->clk);
+ goto failed_free_io;
+ }
+
+ /* Create and register the input driver. */
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ error = -ENOMEM;
+ goto failed_put_clk;
+ }
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = pxa27x_keypad_open;
+ input_dev->close = pxa27x_keypad_close;
+ input_dev->dev.parent = &pdev->dev;
+
+ keypad->input_dev = input_dev;
+ input_set_drvdata(input_dev, keypad);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
+ BIT_MASK(EV_REL);
+
+ pxa27x_keypad_build_keycode(keypad);
+ platform_set_drvdata(pdev, keypad);
+
+ error = request_irq(irq, pxa27x_keypad_irq_handler, IRQF_DISABLED,
+ pdev->name, keypad);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto failed_free_dev;
+ }
+
+ /* Register the input device */
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ return 0;
+
+failed_free_irq:
+ free_irq(irq, pdev);
+ platform_set_drvdata(pdev, NULL);
+failed_free_dev:
+ input_free_device(input_dev);
+failed_put_clk:
+ clk_put(keypad->clk);
+failed_free_io:
+ iounmap(keypad->mmio_base);
+failed_free_mem:
+ release_mem_region(res->start, res_size(res));
+failed_free:
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit pxa27x_keypad_remove(struct platform_device *pdev)
+{
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(platform_get_irq(pdev, 0), pdev);
+
+ clk_disable(keypad->clk);
+ clk_put(keypad->clk);
+
+ input_unregister_device(keypad->input_dev);
+ input_free_device(keypad->input_dev);
+
+ iounmap(keypad->mmio_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, res_size(res));
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(keypad);
+ return 0;
+}
+
+static struct platform_driver pxa27x_keypad_driver = {
+ .probe = pxa27x_keypad_probe,
+ .remove = __devexit_p(pxa27x_keypad_remove),
+ .suspend = pxa27x_keypad_suspend,
+ .resume = pxa27x_keypad_resume,
+ .driver = {
+ .name = "pxa27x-keypad",
+ },
+};
+
+static int __init pxa27x_keypad_init(void)
+{
+ return platform_driver_register(&pxa27x_keypad_driver);
+}
+
+static void __exit pxa27x_keypad_exit(void)
+{
+ platform_driver_unregister(&pxa27x_keypad_driver);
+}
+
+module_init(pxa27x_keypad_init);
+module_exit(pxa27x_keypad_exit);
+
+MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c
new file mode 100644
index 000000000000..3884d1e3f070
--- /dev/null
+++ b/drivers/input/keyboard/tosakbd.c
@@ -0,0 +1,415 @@
+/*
+ * 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 <asm/arch/gpio.h>
+#include <asm/arch/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 int 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 int keycode[ARRAY_SIZE(tosakbd_keycode)];
+ struct input_dev *input;
+
+ spinlock_t lock; /* protect kbd scanning */
+ struct timer_list timer;
+};
+
+
+/* Helper functions for reading the keyboard matrix
+ * Note: We should really be using pxa_gpio_mode 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);
+
+ 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);
+
+ 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);
+
+ del_timer_sync(&tosakbd->timer);
+
+ return 0;
+}
+
+static int tosakbd_resume(struct platform_device *dev)
+{
+ 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(unsigned int);
+ 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(0, 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 fail;
+ }
+
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ printk(KERN_ERR "tosakbd: Unable to register input device, "
+ "error: %d\n", error);
+ goto fail;
+ }
+
+ 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",
+ },
+};
+
+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");
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