Merge branch 'pxa-keypad'

drivers/input/keyboard/Kconfig

@@ -260,13 +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"

drivers/input/keyboard/Makefile

@@ -19,7 +19,7 @@ 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

drivers/input/keyboard/pxa27x_keyboard.c

-/*
- * 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");

include/asm-arm/arch-pxa/pxa27x_keyboard.h

-#define PXAKBD_MAXROW		8
-#define PXAKBD_MAXCOL		8
-
-struct pxa27x_keyboard_platform_data {
-	int nr_rows, nr_cols;
-	int keycodes[PXAKBD_MAXROW][PXAKBD_MAXCOL];
-	int gpio_modes[PXAKBD_MAXROW + PXAKBD_MAXCOL];
-
-#ifdef CONFIG_PM
-	u32 reg_kpc;
-	u32 reg_kprec;
-#endif
-};

include/asm-arm/arch-pxa/pxa27x_keypad.h

+#ifndef __ASM_ARCH_PXA27x_KEYPAD_H
+#define __ASM_ARCH_PXA27x_KEYPAD_H
+
+#include <linux/input.h>
+
+#define MAX_MATRIX_KEY_ROWS	(8)
+#define MAX_MATRIX_KEY_COLS	(8)
+
+/* pxa3xx keypad platform specific parameters
+ *
+ * NOTE:
+ * 1. direct_key_num indicates the number of keys in the direct keypad
+ *    _plus_ the number of rotary-encoder sensor inputs,  this can be
+ *    left as 0 if only rotary encoders are enabled,  the driver will
+ *    automatically calculate this
+ *
+ * 2. direct_key_map is the key code map for the direct keys, if rotary
+ *    encoder(s) are enabled, direct key 0/1(2/3) will be ignored
+ *
+ * 3. rotary can be either interpreted as a relative input event (e.g.
+ *    REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT)
+ *
+ * 4. matrix key and direct key will use the same debounce_interval by
+ *    default, which should be sufficient in most cases
+ */
+struct pxa27x_keypad_platform_data {
+
+	/* code map for the matrix keys */
+	unsigned int	matrix_key_rows;
+	unsigned int	matrix_key_cols;
+	unsigned int	*matrix_key_map;
+	int		matrix_key_map_size;
+
+	/* direct keys */
+	int		direct_key_num;
+	unsigned int	direct_key_map[8];
+
+	/* rotary encoders 0 */
+	int		enable_rotary0;
+	int		rotary0_rel_code;
+	int		rotary0_up_key;
+	int		rotary0_down_key;
+
+	/* rotary encoders 1 */
+	int		enable_rotary1;
+	int		rotary1_rel_code;
+	int		rotary1_up_key;
+	int		rotary1_down_key;
+
+	/* key debounce interval */
+	unsigned int	debounce_interval;
+};
+
+#define KEY(row, col, val)	(((row) << 28) | ((col) << 24) | (val))
+
+#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */