linux-rp-2.6.20: add sharpsl-rc patch for the CE-RH2 remote

2 files changed, 492 insertions, 0 deletions

diff --git a/packages/linux/linux-rp-2.6.20/defconfig-spitz b/packages/linux/linux-rp-2.6.20/defconfig-spitz
index 824fd57aaa..91f73ed4e9 100644
--- a/packages/linux/linux-rp-2.6.20/defconfig-spitz
+++ b/packages/linux/linux-rp-2.6.20/defconfig-spitz
@@ -1601,3 +1601,4 @@ CONFIG_CRC32=y
 CONFIG_LIBCRC32C=m
 CONFIG_ZLIB_INFLATE=m
 CONFIG_ZLIB_DEFLATE=m
+CONFIG_SHARPSL_RC=m
\ No newline at end of file
diff --git a/packages/linux/linux-rp-2.6.20/sharpsl-rc-r0.patch b/packages/linux/linux-rp-2.6.20/sharpsl-rc-r0.patch
new file mode 100644
index 0000000000..9761f43aca
--- /dev/null
+++ b/packages/linux/linux-rp-2.6.20/sharpsl-rc-r0.patch
@@ -0,0 +1,491 @@
+Index: linux-2.6.20/arch/arm/mach-pxa/spitz.c
+===================================================================
+--- linux-2.6.20.orig/arch/arm/mach-pxa/spitz.c
++++ linux-2.6.20/arch/arm/mach-pxa/spitz.c
+@@ -244,6 +244,13 @@ static struct platform_device spitzkbd_d
+ 	.id		= -1,
+ };
+ 
++/*
++ * Spitz Remote Control Device
++ */
++static struct platform_device sharpsl_rc_device = {
++	.name		= "sharpsl-remote-control",
++	.id		= -1,
++};
+ 
+ /*
+  * Spitz LEDs
+@@ -476,6 +483,7 @@ static struct platform_device *devices[]
+ 	&spitzscoop_device,
+ 	&spitzssp_device,
+ 	&spitzkbd_device,
++	&sharpsl_rc_device,
+ 	&spitzts_device,
+ 	&spitzbl_device,
+ 	&spitzled_device,
+Index: linux-2.6.20/drivers/input/keyboard/Kconfig
+===================================================================
+--- linux-2.6.20.orig/drivers/input/keyboard/Kconfig
++++ linux-2.6.20/drivers/input/keyboard/Kconfig
+@@ -154,6 +154,17 @@ config KEYBOARD_SPITZ
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called spitzkbd.
+ 
++config SHARPSL_RC
++	tristate "Sharp SL-Cxx00 Remote Control"
++	depends on PXA_SHARPSL
++	default y
++	help
++	  Say Y here to enable the remote on the Sharp Zaurus SL-Cxx00,
++	  SL-C1000, SL-C3000 and Sl-C3100 series of PDAs.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called sharpsl_rc.
++
+ config KEYBOARD_AMIGA
+ 	tristate "Amiga keyboard"
+ 	depends on AMIGA
+Index: linux-2.6.20/drivers/input/keyboard/Makefile
+===================================================================
+--- linux-2.6.20.orig/drivers/input/keyboard/Makefile
++++ linux-2.6.20/drivers/input/keyboard/Makefile
+@@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_NEWTON)		+= newton
+ obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
+ obj-$(CONFIG_KEYBOARD_CORGI)		+= corgikbd.o
+ obj-$(CONFIG_KEYBOARD_SPITZ)		+= spitzkbd.o
++obj-$(CONFIG_SHARPSL_RC)			+= sharpsl_rc.o
+ obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
+ obj-$(CONFIG_KEYBOARD_HIL_OLD)		+= hilkbd.o
+ obj-$(CONFIG_KEYBOARD_OMAP)             += omap-keypad.o
+Index: linux-2.6.20/drivers/input/keyboard/sharpsl_rc.c
+===================================================================
+--- /dev/null
++++ linux-2.6.20/drivers/input/keyboard/sharpsl_rc.c
+@@ -0,0 +1,263 @@
++/*
++ *  Keyboard driver for Sharp Clamshell Models (SL-Cxx00)
++ *
++ *  Copyright (c) 2004-2005 Richard Purdie
++ *
++ *  Based on corgikbd.c and Sharp's RC driver
++ *
++ *  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.
++ *
++ */
++
++#define DEBUG 1
++#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 <asm/arch/spitz.h>
++#include <asm/arch/hardware.h>
++#include <asm/arch/pxa-regs.h>
++#include <asm/hardware/scoop.h>
++#include <asm/arch/sharpsl.h>
++#include <asm/hardware/sharpsl_pm.h>
++
++#define DPRINTK(fmt, args...) dev_dbg(data->dev, fmt "\n", ##args)
++
++struct remote_control_key {
++	unsigned char min;
++	unsigned char max;
++	unsigned char key;
++};
++
++static struct remote_control_key spitz_remote_keys[] = {
++	{ 25, 35, KEY_STOPCD},
++	{ 55, 65, KEY_PLAYPAUSE},
++	{ 85, 95, KEY_NEXTSONG},
++	{ 115, 125, KEY_VOLUMEUP},
++	{ 145, 155, KEY_PREVIOUSSONG},
++	{ 180, 190, KEY_MUTE},
++	{ 215, 225, KEY_VOLUMEDOWN},
++};
++
++#define RELEASE_HI      230
++#define MAX_EARPHONE    6
++#define RC_POLL_MS      10
++#define RC_FINISH_MS    500
++#define WAIT_STATE      3
++#define NOISE_THRESHOLD 100
++
++struct sharpsl_rc {
++	struct input_dev *input;
++	struct device *dev;
++
++	spinlock_t lock;
++	struct timer_list rctimer;
++	struct timer_list rctimer_finish;
++
++	unsigned int handling_press;
++	unsigned int noise;
++	unsigned int state;
++	unsigned int last_key;
++};
++
++static int get_remocon_raw(void)
++{
++	int i, val;
++
++	val = sharpsl_pm_pxa_read_max1111(MAX1111_REMCOM);
++	for (i = 0; i < ARRAY_SIZE(spitz_remote_keys); ++i) {
++		if (val >= spitz_remote_keys[i].min
++			&& val <= spitz_remote_keys[i].max) {
++			printk("get_remocon_raw: VAL=%i, KEY=%i\n", val, spitz_remote_keys[i].key);
++			return spitz_remote_keys[i].key;
++		}
++	}
++	return 0;
++}
++
++static irqreturn_t sharpsl_rc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++{
++	struct sharpsl_rc *data = dev_id;
++	DPRINTK("sharpsl_rc_interrupt %d\n", irq);
++	if (!data->handling_press) {
++		DPRINTK("handling interrupt");
++		data->handling_press = 1;
++		data->noise = 0;
++		data->state = 0;
++		data->last_key = 0;
++
++		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_AKIN_PULLUP);
++
++		mod_timer(&data->rctimer, jiffies + msecs_to_jiffies(RC_POLL_MS));
++	}
++	return IRQ_HANDLED;
++}
++
++static void sharpsl_rc_timer_callback(unsigned long dataPtr)
++{
++	struct sharpsl_rc *data = (struct sharpsl_rc *) dataPtr;
++	int timer = 1;
++	int key = get_remocon_raw();
++	DPRINTK("timer callback, key: %d", key);
++
++	//wait for value to stabilize
++	if (data->state < WAIT_STATE) {
++		if (data->last_key != key) {
++			++data->noise;
++			if (data->noise > NOISE_THRESHOLD) {
++				DPRINTK("too much noise, bailing");
++				timer = 0;
++			}
++			data->state = 0;
++		} else {
++			++data->state;
++		}
++		data->last_key = key;
++
++	//stable value, send event
++	} else if (data->state == WAIT_STATE) {
++		data->noise = 0;
++		//non-key returned, skip the rest of the states and bail now
++		if (data->last_key == 0) {
++			DPRINTK("non-key detected %d, noise: %d", data->last_key, data->noise);
++			timer = 0;
++		//send button press
++		} else {
++			DPRINTK("key press detected %d, noise %d", data->last_key, data->noise);
++			input_report_key(data->input, data->last_key, 1);
++		}
++		++data->state;
++
++	//wait until key is released
++	} else if (data->state < WAIT_STATE * 2) {
++		if (key == data->last_key
++			&& data->noise < NOISE_THRESHOLD) {
++			data->state = WAIT_STATE + 1;
++			++data->noise;
++		} else {
++			++data->state;
++		}
++	//key is released, send event
++	} else {
++		//send button release
++		DPRINTK("release key %d", data->last_key);
++		input_report_key(data->input, data->last_key, 0);
++		timer = 0;
++	}
++	if (timer) {
++		mod_timer(&data->rctimer, jiffies + msecs_to_jiffies(RC_POLL_MS));
++	} else {
++		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_AKIN_PULLUP);
++		data->handling_press = 0;
++	}
++}
++
++static int __init sharpsl_rc_probe(struct platform_device *pdev)
++{
++	struct sharpsl_rc *sharpsl_rc;
++	struct input_dev *input_dev;
++	int i, ret;
++
++	dev_dbg(&pdev->dev, "sharpsl_rc_probe\n");
++
++	sharpsl_rc = kzalloc(sizeof(struct sharpsl_rc), GFP_KERNEL);
++	input_dev = input_allocate_device();
++	if (!sharpsl_rc || !input_dev) {
++		kfree(sharpsl_rc);
++		input_free_device(input_dev);
++		return -ENOMEM;
++	}
++
++	platform_set_drvdata(pdev, sharpsl_rc);
++
++	sharpsl_rc->dev = &pdev->dev;
++	sharpsl_rc->input = input_dev;
++	spin_lock_init(&sharpsl_rc->lock);
++
++	/* Init Remote Control Timer */
++	init_timer(&sharpsl_rc->rctimer);
++	sharpsl_rc->rctimer.function = sharpsl_rc_timer_callback;
++	sharpsl_rc->rctimer.data = (unsigned long) sharpsl_rc;
++
++	input_dev->name = "Spitz Remote Control";
++	input_dev->phys = "sharpsl_rc/input0";
++	input_dev->id.bustype = BUS_HOST;
++	input_dev->id.vendor = 0x0001;
++	input_dev->id.product = 0x0001;
++	input_dev->id.version = 0x0100;
++	input_dev->cdev.dev = &pdev->dev;
++	input_dev->private = sharpsl_rc;
++
++	input_dev->evbit[0] = BIT(EV_KEY);
++
++	for (i = 0; i <= ARRAY_SIZE(spitz_remote_keys); i++)
++	  set_bit(spitz_remote_keys[i].key, input_dev->keybit);
++
++	input_register_device(sharpsl_rc->input);
++
++	pxa_gpio_mode(SPITZ_GPIO_AK_INT | GPIO_IN);
++	ret = request_irq(SPITZ_IRQ_GPIO_AK_INT,
++					  sharpsl_rc_interrupt,
++					  IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SHARED,
++					  "sharpsl_rc",
++					  sharpsl_rc);
++	if (ret < 0) {
++		dev_dbg(&pdev->dev, "Can't get IRQ: %d!\n", i);
++		kfree(sharpsl_rc);
++		input_free_device(input_dev);
++		return ret;
++	}
++
++	return 0;
++}
++
++static int sharpsl_rc_remove(struct platform_device *pdev)
++{
++	struct sharpsl_rc *sharpsl_rc = platform_get_drvdata(pdev);
++
++	dev_dbg(&pdev->dev, "sharpsl_rc_remove\n");
++
++	free_irq(SPITZ_IRQ_GPIO_AK_INT, sharpsl_rc);
++	del_timer_sync(&sharpsl_rc->rctimer);
++	input_unregister_device(sharpsl_rc->input);
++	kfree(sharpsl_rc);
++
++	return 0;
++}
++
++static struct platform_driver sharpsl_rc_driver = {
++	.probe		= sharpsl_rc_probe,
++	.remove		= sharpsl_rc_remove,
++	.suspend	= NULL,
++	.resume		= NULL,
++	.driver		= {
++		.name	= "sharpsl-remote-control",
++	},
++};
++
++static int __devinit sharpsl_rc_init(void)
++{
++	printk("sharpsl_rc_init\n");
++	return platform_driver_register(&sharpsl_rc_driver);
++}
++
++static void __exit sharpsl_rc_exit(void)
++{
++	printk("sharpsl_rc_exit\n");
++	platform_driver_unregister(&sharpsl_rc_driver);
++}
++
++module_init(sharpsl_rc_init);
++module_exit(sharpsl_rc_exit);
++
++MODULE_AUTHOR("Justin Patrin <papercrane@reversefold.com>");
++MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
++MODULE_DESCRIPTION("SharpSL Remote Control Driver");
++MODULE_LICENSE("GPL");
+Index: linux-2.6.20/drivers/input/keyboard/spitzkbd.c
+===================================================================
+--- linux-2.6.20.orig/drivers/input/keyboard/spitzkbd.c
++++ linux-2.6.20/drivers/input/keyboard/spitzkbd.c
+@@ -19,6 +19,7 @@
+ #include <linux/jiffies.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
++#include <linux/kmod.h>
+ 
+ #include <asm/arch/spitz.h>
+ #include <asm/arch/hardware.h>
+@@ -279,13 +280,21 @@ static irqreturn_t spitzkbd_hinge_isr(in
+ static int sharpsl_hinge_state;
+ static int hinge_count;
+ 
++void spitzkbd_handle_sharpsl_rc(void *arg) {
++	request_module("sharpsl_rc");
++}
++
++DECLARE_WORK(spitzkbd_work, spitzkbd_handle_sharpsl_rc);
++
+ static void spitzkbd_hinge_timer(unsigned long data)
+ {
+ 	struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
+ 	unsigned long state;
+ 	unsigned long flags;
++	unsigned int headphone, remote;
+ 
+ 	state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB));
++	state |= (GPLR(SPITZ_GPIO_HP_IN) & GPIO_bit(SPITZ_GPIO_HP_IN));
+ 	state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT));
+ 	if (state != sharpsl_hinge_state) {
+ 		hinge_count = 0;
+@@ -299,9 +308,18 @@ static void spitzkbd_hinge_timer(unsigne
+ 
+ 		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));
++
++		headphone = ((GPLR(SPITZ_GPIO_HP_IN) & GPIO_bit(SPITZ_GPIO_HP_IN)) != 0);
++		input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, headphone);
++
++		remote = headphone && ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) == 0);
++		input_report_switch(spitzkbd_data->input, SW_REMOTE_INSERT, remote);
+ 		input_sync(spitzkbd_data->input);
+ 
++		if (remote) {
++			schedule_work(&spitzkbd_work);
++		}
++
+ 		spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
+ 	} else {
+ 		mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
+@@ -394,6 +412,7 @@ static int __init spitzkbd_probe(struct 
+ 	set_bit(SW_LID, input_dev->swbit);
+ 	set_bit(SW_TABLET_MODE, input_dev->swbit);
+ 	set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
++	set_bit(SW_REMOTE_INSERT, input_dev->swbit);
+ 
+ 	err = input_register_device(input_dev);
+ 	if (err)
+@@ -431,9 +450,12 @@ static int __init spitzkbd_probe(struct 
+ 	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,
++	request_irq(SPITZ_IRQ_GPIO_HP_IN, spitzkbd_hinge_isr,
+ 		    IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ 		    "Spitzkbd HP", spitzkbd);
++  	request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr,
++ 		    IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_SHARED,
++            "Spitzkbd HP Type", spitzkbd);
+ 
+ 	return 0;
+ 
+@@ -454,6 +476,7 @@ static int spitzkbd_remove(struct platfo
+ 	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_HP_IN, spitzkbd);
+ 	free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd);
+ 
+ 	del_timer_sync(&spitzkbd->htimer);
+Index: linux-2.6.20/arch/arm/mach-pxa/sharpsl.h
+===================================================================
+--- linux-2.6.20.orig/arch/arm/mach-pxa/sharpsl.h
++++ linux-2.6.20/arch/arm/mach-pxa/sharpsl.h
+@@ -50,15 +50,10 @@ void spitz_wait_hsync(void);
+ 
+ #define READ_GPIO_BIT(x)    (GPLR(x) & GPIO_bit(x))
+ 
+-/* MAX1111 Channel Definitions */
+-#define MAX1111_BATT_VOLT   4u
+-#define MAX1111_BATT_TEMP   2u
+-#define MAX1111_ACIN_VOLT   6u
+-
+ extern struct battery_thresh spitz_battery_levels_acin[];
+ extern struct battery_thresh spitz_battery_levels_noac[];
+ void sharpsl_pm_pxa_init(void);
+ void sharpsl_pm_pxa_remove(void);
+-int sharpsl_pm_pxa_read_max1111(int channel);
++
+ 
+ 
+Index: linux-2.6.20/arch/arm/mach-pxa/sharpsl_pm.c
+===================================================================
+--- linux-2.6.20.orig/arch/arm/mach-pxa/sharpsl_pm.c
++++ linux-2.6.20/arch/arm/mach-pxa/sharpsl_pm.c
+@@ -135,6 +135,8 @@ int sharpsl_pm_pxa_read_max1111(int chan
+ 			| MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR);
+ }
+ 
++EXPORT_SYMBOL(sharpsl_pm_pxa_read_max1111);
++
+ void sharpsl_pm_pxa_init(void)
+ {
+ 	pxa_gpio_mode(sharpsl_pm.machinfo->gpio_acin | GPIO_IN);
+Index: linux-2.6.20/include/asm-arm/hardware/sharpsl_pm.h
+===================================================================
+--- linux-2.6.20.orig/include/asm-arm/hardware/sharpsl_pm.h
++++ linux-2.6.20/include/asm-arm/hardware/sharpsl_pm.h
+@@ -104,3 +104,10 @@ irqreturn_t sharpsl_ac_isr(int irq, void
+ irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id);
+ irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id);
+ 
++/* MAX1111 Channel Definitions */
++#define MAX1111_REMCOM      0u
++#define MAX1111_BATT_VOLT   4u
++#define MAX1111_BATT_TEMP   2u
++#define MAX1111_ACIN_VOLT   6u
++
++int sharpsl_pm_pxa_read_max1111(int channel);
+Index: linux-2.6.20/include/linux/input.h
+===================================================================
+--- linux-2.6.20.orig/include/linux/input.h
++++ linux-2.6.20/include/linux/input.h
+@@ -602,6 +602,7 @@ struct input_absinfo {
+ #define SW_LID			0x00  /* set = lid shut */
+ #define SW_TABLET_MODE		0x01  /* set = tablet mode */
+ #define SW_HEADPHONE_INSERT	0x02  /* set = inserted */
++#define SW_REMOTE_INSERT    0x04  /* set = remote */
+ #define SW_MAX			0x0f
+ 
+ /*
+Index: linux-2.6.20/arch/arm/mach-pxa/spitz_pm.c
+===================================================================
+--- linux-2.6.20.orig/arch/arm/mach-pxa/spitz_pm.c
++++ linux-2.6.20/arch/arm/mach-pxa/spitz_pm.c
+@@ -161,6 +161,13 @@ static int spitz_should_wakeup(unsigned 
+ 	if (resume_on_alarm && (PEDR & PWER_RTC))
+ 		is_resume |= PWER_RTC;
+ 
++	printk("wakeup: PEDR: %x, PKSR: %x, HP_IN: %x, AK_INT: %x\n", PEDR, PKSR, GPIO_bit(SPITZ_GPIO_HP_IN), GPIO_bit(SPITZ_GPIO_AK_INT));
++
++	//remote/headphone interrupt, wakeup
++	if (PEDR == 0 && (PKSR & 0xc0d01) != 0) {
++		is_resume |= PWER_RTC;
++	}
++
+ 	dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
+ 	return is_resume;
+ }