path: root/packages/linux/linux-ezx-2.6.21/patches/ezx-pcap.patch

Index: linux-2.6.21/arch/arm/mach-pxa/ezx-pcap.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21/arch/arm/mach-pxa/ezx-pcap.c	2007-08-31 22:48:16.000000000 -0300
@@ -0,0 +1,513 @@
+/* Driver for Motorola PCAP2 as present in EZX phones
+ *
+ * This is both a SPI device driver for PCAP itself, as well as
+ * an IRQ demultiplexer for handling PCAP generated events such as
+ * headphone jack sense by downstream drivers.
+ *
+ * Copyright (C) 2006 Harald Welte <laforge@openezx.org>
+ * Copyright (C) 2007 Daniel Ribeiro <drwyrm@gmail.com>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+#include <asm/arch/ezx.h>
+#include <asm/arch/ssp.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/ezx-pcap.h>
+#include <asm/arch/irqs.h>
+#include <asm/mach/irq.h>
+
+#if 0
+#define DEBUGP(x, args...) printk(x, ## args)
+#else
+#define DEBUGP(x, args...)
+#endif
+
+static DEFINE_SPINLOCK(ezx_ssp_lock);
+static struct ssp_dev ezx_ssp_dev;
+static struct ssp_state ezx_ssp_state;
+static struct pcap_platform_data *pcap_data;
+static int pcap_irq;
+
+static unsigned long ezx_ssp_pcap_putget(ulong data)
+{
+	unsigned long flag;
+	u32 ret = 0;
+
+	spin_lock_irqsave(&ezx_ssp_lock, flag);
+	if (pcap_data->cs >= 0) {
+		if (pcap_data->flags & PCAP_CS_AH)
+			GPSR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+		else
+			GPCR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+	}
+
+	ssp_write_word(&ezx_ssp_dev,data);
+ 	ssp_read_word(&ezx_ssp_dev, &ret);
+
+	if (pcap_data->cs >= 0) {
+		if(pcap_data->flags & PCAP_CS_AH)
+			GPCR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+		else
+			GPSR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+	}
+
+	spin_unlock_irqrestore(&ezx_ssp_lock, flag);
+
+	return ret;
+}
+
+int ezx_pcap_write(u_int8_t reg_num, u_int32_t value)
+{
+	value &= PCAP_REGISTER_VALUE_MASK;
+	value |= PCAP_REGISTER_WRITE_OP_BIT
+		| (reg_num<<PCAP_REGISTER_ADDRESS_SHIFT);
+
+	ezx_ssp_pcap_putget(value);
+
+	DEBUGP("pcap write r%x: 0x%08x\n", reg_num, value);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_write);
+
+int ezx_pcap_read(u_int8_t reg_num, u_int32_t *value)
+{
+	u_int32_t frame = PCAP_REGISTER_READ_OP_BIT
+		| (reg_num<<PCAP_REGISTER_ADDRESS_SHIFT);
+
+	*value = ezx_ssp_pcap_putget(frame);
+
+	DEBUGP("pcap read r%x:  0x%08x\n", reg_num, *value);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_read);
+
+int ezx_pcap_bit_set(u_int32_t sspPcapBit, u_int8_t to)
+{
+        int ret;
+        u_int32_t tmp;
+        u_int32_t bit = (sspPcapBit & PCAP_REGISTER_VALUE_MASK);
+        u_int8_t reg_num = (sspPcapBit & PCAP_REGISTER_ADDRESS_MASK)
+                                        >> PCAP_REGISTER_ADDRESS_SHIFT;
+
+        ret = ezx_pcap_read(reg_num, &tmp);
+        if (ret < 0)
+                return ret;
+
+        if (to == 0)
+                tmp &= ~bit;
+        else
+                tmp |= bit;
+
+        return ezx_pcap_write(reg_num, tmp);
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_bit_set);
+
+int ezx_pcap_read_bit(u_int32_t bit)
+{
+        int ret;
+        u_int32_t tmp;
+        u_int8_t reg_num = (bit & PCAP_REGISTER_ADDRESS_MASK)
+                                        >> PCAP_REGISTER_ADDRESS_SHIFT;
+
+        ret = ezx_pcap_read(reg_num, &tmp);
+        if (ret < 0)
+                return ret;
+
+        return tmp & (bit & PCAP_REGISTER_VALUE_MASK);
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_read_bit);
+
+/* /proc/pcap support */
+#ifdef CONFIG_PROC_FS
+
+static struct proc_dir_entry *proc_pcap;
+
+char *pcap_registers[] = {
+	"ISR\t", "MSR\t", "PSTAT\t", "INT_SEL\t", "SWCTRL\t", "VREG1\t",
+	"VREG2\t", "VREG\t", "BATT_DAC", "ADC1\t", "ADC2\t", "AUD_CODEC",
+	"RX_AUD_AMPS", "ST_DAC\t", "RTC_TOD\t", "RTC_TODA", "RTC_DAY\t",
+	"RTC_DAYA", "MTRTMR\t", "PWRCTRL\t", "BUSCTRL\t", "PERIPH\t",
+	"AUXVREG_MASK", "VENDOR_REV", "LOWPWR_CTRL", "PERIPH_MASK",
+	"TX_AUD_AMPS", "GP\t",
+	NULL, NULL, NULL, NULL
+};
+
+static int pcap_read_proc(char *page, char **start, off_t off, int count,
+				int *eof, void *data_unused)
+{
+	int len = 0;
+	u_int8_t r;
+	u_int32_t v;
+	off_t begin = 0;
+
+	for(r=0;r<32;r++) {
+		if (pcap_registers[r] == NULL)
+			continue;
+		ezx_pcap_read(r, &v);
+		len += sprintf(page+len, "%s\t%08X\n", pcap_registers[r], v);
+		if(len + begin > off + count)
+			goto done;
+		if(len + begin < off) {
+			begin += len;
+			len = 0;
+		}
+	}
+	*eof = 1;
+done:
+	if (off >= len+begin)
+		return 0;
+	*start = page + (off-begin);
+	return ((count < begin+len-off) ? count : begin+len-off);
+}
+#endif
+
+void ezx_pcap_vibrator_level(u_int32_t value)
+{
+       u_int32_t tmp;
+
+       ezx_pcap_read(PCAP_REG_AUXVREG, &tmp);
+
+       tmp &= ~PCAP_AUXVREG_V_VIB_MASK;
+       tmp |= ((value << PCAP_AUXVREG_V_VIB_SHIFT) & PCAP_AUXVREG_V_VIB_MASK);
+
+       ezx_pcap_write(PCAP_REG_AUXVREG, tmp);
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_vibrator_level);
+
+/* MMC/SD specific functions */
+
+void ezx_pcap_mmcsd_voltage(u_int32_t bits)
+{
+        unsigned int tmp;
+        ezx_pcap_read(PCAP_REG_AUXVREG, &tmp);
+	if (pcap_data->flags & PCAP_MCI_SD) {
+		tmp &= ~PCAP_AUXVREG_VAUX2_MASK;
+		tmp |= ((bits << PCAP_AUXVREG_VAUX2_SHIFT) &
+					PCAP_AUXVREG_VAUX2_MASK);
+	}
+	else if (pcap_data->flags & PCAP_MCI_TF) {
+		tmp &= ~PCAP_AUXVREG_VAUX3_MASK;
+		tmp |= ((bits << PCAP_AUXVREG_VAUX3_SHIFT) &
+					PCAP_AUXVREG_VAUX3_MASK);
+	}
+        ezx_pcap_write(PCAP_REG_AUXVREG, tmp);
+}
+EXPORT_SYMBOL(ezx_pcap_mmcsd_voltage);
+
+int ezx_pcap_mmcsd_power(int on)
+{
+	if (on > 0) on = 1;
+	else on = 0;
+
+	if (pcap_data->flags & PCAP_MCI_SD)
+		return ezx_pcap_bit_set(PCAP_BIT_AUXVREG_VAUX2_EN, on);
+	else if (pcap_data->flags & PCAP_MCI_TF)
+		return ezx_pcap_bit_set(PCAP_BIT_AUXVREG_VAUX3_EN, on);
+	else
+		return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(ezx_pcap_mmcsd_power);
+
+/* IRQ Handling */
+
+/* Array indexed by BIT POSITION of PCAP register, returns IRQ number */
+static unsigned int pcap2irq[] = {
+        [0]     = EZX_IRQ_ADCDONE,
+        [1]     = EZX_IRQ_TS,
+        [2]     = EZX_IRQ_1HZ, /* 1HZ */
+        [3]     = EZX_IRQ_WH, /* WH */
+        [4]     = EZX_IRQ_WL, /* WL */
+        [5]     = EZX_IRQ_TODA, /* TODA */
+        [6]     = EZX_IRQ_USB4V,
+        [7]     = EZX_IRQ_ONOFF, /* ONOFF */
+        [8]     = EZX_IRQ_ONOFF2, /* ONOFF2 */
+        [9]     = EZX_IRQ_USB1V,
+        [10]    = EZX_IRQ_MOBPORT, /* MOBPORT */
+        [11]    = EZX_IRQ_MIC,
+        [12]    = EZX_IRQ_HEADJACK,
+        [13]    = EZX_IRQ_ST, /* ST */
+        [14]    = EZX_IRQ_PC, /* PC */
+        [15]    = EZX_IRQ_WARM, /* WARM */
+        [16]    = EZX_IRQ_EOL, /* EOL */
+        [17]    = EZX_IRQ_CLK, /* CLK */
+        [18]    = EZX_IRQ_SYSRST, /* SYSRST */
+        [19]    = 0,
+        [20]    = EZX_IRQ_ADCDONE2,
+        [21]    = EZX_IRQ_SOFTRESET, /* SOFTRESET */
+        [22]    = EZX_IRQ_MNEXB, /* MNEXB */
+};
+
+/* Array indexed by IRQ NUMBER, returns PCAP absolute value */
+static unsigned int irq2pcap[] = {
+	[EZX_IRQ_MNEXB]		= PCAP_IRQ_MNEXB,
+	[EZX_IRQ_SOFTRESET]	= PCAP_IRQ_SOFTRESET,
+	[EZX_IRQ_SYSRST]	= PCAP_IRQ_SYSRST,
+	[EZX_IRQ_CLK]		= PCAP_IRQ_CLK,
+	[EZX_IRQ_EOL]		= PCAP_IRQ_EOL,
+	[EZX_IRQ_WARM]		= PCAP_IRQ_WARM,
+	[EZX_IRQ_PC]		= PCAP_IRQ_PC,
+	[EZX_IRQ_ST]		= PCAP_IRQ_ST,
+	[EZX_IRQ_MOBPORT]	= PCAP_IRQ_MOBPORT,
+	[EZX_IRQ_ONOFF2]	= PCAP_IRQ_ONOFF2,
+	[EZX_IRQ_ONOFF]		= PCAP_IRQ_ONOFF,
+	[EZX_IRQ_TODA]		= PCAP_IRQ_TODA,
+	[EZX_IRQ_WL]		= PCAP_IRQ_WL,
+	[EZX_IRQ_WH]		= PCAP_IRQ_WH,
+	[EZX_IRQ_1HZ]		= PCAP_IRQ_1HZ,
+        [EZX_IRQ_USB4V]         = PCAP_IRQ_USB4V,
+        [EZX_IRQ_USB1V]         = PCAP_IRQ_USB1V,
+        [EZX_IRQ_HEADJACK]      = PCAP_IRQ_A1,
+        [EZX_IRQ_MIC]           = PCAP_IRQ_MB2,
+        [EZX_IRQ_TS]            = PCAP_IRQ_TS,
+        [EZX_IRQ_ADCDONE]       = PCAP_IRQ_ADCDONE,
+        [EZX_IRQ_ADCDONE2]      = PCAP_IRQ_ADCDONE2,
+};
+
+static void pcap_ack_irq(unsigned int irq)
+{
+        DEBUGP("pcap_ack_irq: %u\n", irq);
+        ezx_pcap_write(PCAP_REG_ISR, irq2pcap[irq]);
+}
+
+static void pcap_mask_irq(unsigned int irq)
+{
+        u_int32_t reg;
+	unsigned long flag;
+
+	spin_lock_irqsave(&ezx_ssp_lock, flag);
+        DEBUGP("pcap_mask_irq: %u\n", irq);
+        ezx_pcap_read(PCAP_REG_MSR, &reg);
+        reg |= irq2pcap[irq];
+        ezx_pcap_write(PCAP_REG_MSR, reg);
+	spin_unlock_irqrestore(&ezx_ssp_lock, flag);
+}
+
+static void pcap_unmask_irq(unsigned int irq)
+{
+        u_int32_t tmp;
+	unsigned long flag;
+
+	spin_lock_irqsave(&ezx_ssp_lock, flag);
+        DEBUGP("pcap_unmask_irq: %u\n", irq);
+        ezx_pcap_read(PCAP_REG_MSR, &tmp);
+        tmp &= ~irq2pcap[irq];
+        ezx_pcap_write(PCAP_REG_MSR, tmp);
+	spin_unlock_irqrestore(&ezx_ssp_lock, flag);
+}
+
+static struct irq_chip pcap_chip = {
+        .ack    = pcap_ack_irq,
+        .mask   = pcap_mask_irq,
+        .unmask = pcap_unmask_irq,
+};
+
+/* handler for interrupt received from PCAP via GPIO */
+static void pcap_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
+{
+	const unsigned int cpu = smp_processor_id();
+        int i;
+        u_int32_t isr, msr;
+
+	spin_lock(&desc->lock);
+	desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
+	if (unlikely(desc->status & (IRQ_INPROGRESS | IRQ_DISABLED))) {
+		desc->status |= (IRQ_PENDING | IRQ_MASKED);
+		desc->chip->mask(irq);
+		desc->chip->ack(irq);
+		goto out_unlock;
+	}
+	kstat_cpu(cpu).irqs[irq]++;
+	desc->chip->ack(irq);
+	desc->status |= IRQ_INPROGRESS;
+	do {
+		if (unlikely((desc->status &
+			       (IRQ_PENDING | IRQ_MASKED | IRQ_DISABLED)) ==
+			      (IRQ_PENDING | IRQ_MASKED))) {
+			desc->chip->unmask(irq);
+			desc->status &= ~IRQ_MASKED;
+		}
+		desc->status &= ~IRQ_PENDING;
+
+		ezx_pcap_read(PCAP_REG_ISR, &isr);
+		ezx_pcap_read(PCAP_REG_MSR, &msr);
+		for (i = ARRAY_SIZE(pcap2irq)-1; i >= 0; i--) {
+			unsigned int pirq = pcap2irq[i];
+			struct irq_desc *subdesc;
+			if (pirq == 0 || !(isr & irq2pcap[pirq]))
+				continue;
+			subdesc = irq_desc + pirq;
+			if (msr & irq2pcap[pirq])
+				continue;
+			DEBUGP("found irq %u\n", pirq);
+			spin_unlock(&desc->lock);
+			desc_handle_irq(pirq, subdesc);
+			spin_lock(&desc->lock);
+		}
+
+	} while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);
+
+	desc->status &= ~IRQ_INPROGRESS;
+out_unlock:
+	spin_unlock(&desc->lock);
+}
+
+static int ezx_pcap_remove(struct platform_device *pdev)
+{
+	int irq;
+	DEBUGP("exz_pcap_remove entered\n");
+
+	set_irq_chained_handler(pcap_irq, NULL);
+
+	for (irq = EZX_IRQ(0); irq <= EZX_IRQ(21); irq++) {
+		set_irq_chip(irq, NULL);
+		set_irq_handler(irq, NULL);
+		set_irq_flags(irq, 0);
+	}
+
+	ssp_exit(&ezx_ssp_dev);
+
+	return 0;
+}
+
+static int __init ezx_pcap_probe(struct platform_device *pdev)
+{
+	unsigned int ret, irq;
+	DEBUGP("ezx_pcap_probe entered\n");
+
+	pcap_data = pdev->dev.platform_data;
+
+	/* configure ssp port */
+	pxa_gpio_mode(29|GPIO_ALT_FN_3_OUT);
+	pxa_gpio_mode(GPIO24_SFRM_MD);
+	pxa_gpio_mode(GPIO25_STXD_MD);
+	pxa_gpio_mode(GPIO26_SRXD_MD);
+
+	if (pcap_data->cs >= 0) {
+		if (pcap_data->flags & PCAP_CS_AH)
+			pxa_gpio_mode(pcap_data->cs | GPIO_OUT);
+		else
+			pxa_gpio_mode(pcap_data->cs | GPIO_OUT
+						| GPIO_DFLT_HIGH);
+	}
+	pcap_irq = platform_get_irq(pdev, 0);
+	if(pcap_irq < 0) {
+		printk(KERN_ERR "Unable to get IRQ for pcap!\n");
+		return pcap_irq;
+	}
+
+	ret = ssp_init(&ezx_ssp_dev, pcap_data->port, 0);
+	if (ret) {
+		printk(KERN_ERR "Unable to register SSP handler!\n");
+		return ret;
+	}
+
+	ssp_disable(&ezx_ssp_dev);
+	ssp_config(&ezx_ssp_dev,
+		(SSCR0_Motorola | SSCR0_DataSize(16) | SSCR0_EDSS),
+		(SSCR1_TxTresh(1) | SSCR1_RxTresh(1)),
+		0, SSCR0_SerClkDiv(pcap_data->clk));
+	ssp_enable(&ezx_ssp_dev);
+
+	/* mask/ack all PCAP interrupts */
+	ezx_pcap_write(PCAP_REG_MSR, PCAP_MASK_ALL_INTERRUPT);
+	ezx_pcap_write(PCAP_REG_ISR, PCAP_CLEAR_INTERRUPT_REGISTER);
+
+	if (pcap_data->init)
+		pcap_data->init();
+
+        /* set up interrupt demultiplexing code for PCAP2 irqs */
+	set_irq_type(pcap_irq, IRQT_RISING);
+        for (irq = EZX_IRQ(0); irq <= EZX_IRQ(21); irq++) {
+                set_irq_chip(irq, &pcap_chip);
+                set_irq_handler(irq, handle_level_irq);
+                set_irq_flags(irq, IRQF_VALID);
+        }
+        set_irq_chained_handler(pcap_irq, pcap_irq_demux_handler);
+	set_irq_wake(pcap_irq, 1);
+
+	printk("ezx-pcap: ssp driver registered\n");
+        return ret;
+}
+
+static int ezx_pcap_suspend(struct platform_device *dev, pm_message_t state)
+{
+	DEBUGP("pcap suspend!\n");
+	ssp_flush(&ezx_ssp_dev);
+	ssp_save_state(&ezx_ssp_dev, &ezx_ssp_state);
+	if (pcap_data->cs >= 0)
+			pxa_gpio_mode(pcap_data->cs | GPIO_IN);
+        return 0;
+}
+
+static int ezx_pcap_resume(struct platform_device *dev)
+{
+	DEBUGP("pcap resume!\n");
+
+	if (pcap_data->cs >= 0) {
+		if (pcap_data->flags & PCAP_CS_AH) {
+			pxa_gpio_mode(pcap_data->cs | GPIO_OUT);
+			GPCR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+		}
+		else {
+			pxa_gpio_mode(pcap_data->cs | GPIO_OUT | GPIO_DFLT_HIGH);
+			GPSR(pcap_data->cs) = GPIO_bit(pcap_data->cs);
+		}
+	}
+	ssp_restore_state(&ezx_ssp_dev,&ezx_ssp_state);
+	ssp_enable(&ezx_ssp_dev);
+
+	ezx_pcap_write(PCAP_REG_ISR, PCAP_CLEAR_INTERRUPT_REGISTER);
+
+        return 0;
+}
+
+static struct platform_driver ezxpcap_driver = {
+	.probe          = ezx_pcap_probe,
+	.remove         = ezx_pcap_remove,
+	.suspend	= ezx_pcap_suspend,
+	.resume		= ezx_pcap_resume,
+	.driver         = {
+		.name   = "ezx-pcap",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init ezx_pcap_init(void)
+{
+	DEBUGP("ezx_pcap_init entered\n");
+
+#ifdef CONFIG_PROC_FS
+	if((proc_pcap = create_proc_entry("pcap", 0, NULL)))
+		proc_pcap->read_proc = pcap_read_proc;
+#endif
+
+	return platform_driver_register(&ezxpcap_driver);
+}
+
+static void __exit ezx_pcap_exit(void)
+{
+#ifdef CONFIG_PROC_FS
+	if (proc_pcap)
+		remove_proc_entry("pcap", NULL);
+#endif
+
+	return platform_driver_unregister(&ezxpcap_driver);
+}
+
+module_init(ezx_pcap_init);
+module_exit(ezx_pcap_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Harald Welte");
+MODULE_DESCRIPTION("SPI Driver for Motorola PCAP2");
+
Index: linux-2.6.21/include/asm-arm/arch-pxa/ezx-pcap.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.21/include/asm-arm/arch-pxa/ezx-pcap.h	2007-09-04 23:34:19.000000000 -0300
@@ -0,0 +1,247 @@
+/*
+ * Copyright 2007 Daniel Ribeiro <drwyrm@gmail.com>
+ */
+
+#ifndef EZX_PCAP_H
+#define EZX_PCAP_H
+
+struct pcap_platform_data {
+	int port;		/* SSP port */
+	int cs;			/* CS gpio */
+	int clk;
+	int flags;		/* driver flags */
+	int (*init)(void);	/* board specific driver init */
+};
+
+/* driver configuration */
+#define PCAP_CS_AH		(1 << 0) /* CS pin is active high */
+#define PCAP_MCI_SD		(1 << 1) /* SD card slot */
+#define PCAP_MCI_TF		(1 << 2) /* TF card slot */
+
+#define PCAP_REGISTER_WRITE_OP_BIT	0x80000000
+#define PCAP_REGISTER_READ_OP_BIT	0x00000000
+
+#define PCAP_REGISTER_VALUE_MASK	0x01ffffff
+#define PCAP_REGISTER_ADDRESS_MASK	0x7c000000
+#define PCAP_REGISTER_ADDRESS_SHIFT	26
+#define PCAP_REGISTER_NUMBER		32
+#define PCAP_CLEAR_INTERRUPT_REGISTER	0x01ffffff
+#define PCAP_MASK_ALL_INTERRUPT		0x01ffffff
+
+
+#define pbit(reg, bit)	((reg << PCAP_REGISTER_ADDRESS_SHIFT) | bit)
+
+/* registers acessible by both pcap ports */
+#define PCAP_REG_ISR		0x0	/* Interrupt Status */
+#define PCAP_REG_MSR		0x1	/* Interrupt Mask */
+#define PCAP_REG_PSTAT		0x2	/* Processor Status */
+#define PCAP_REG_VREG2		0x6	/* Regulator Bank 2 Control */
+#define PCAP_REG_AUXVREG	0x7	/* Auxiliary Regulator Control */
+#define PCAP_REG_BATT		0x8	/* Battery Control */
+#define PCAP_REG_ADC1		0x9	/* AD Control */
+#define PCAP_REG_ADC2		0xa	/* AD Result */
+#define PCAP_REG_CODEC		0xb	/* Audio Codec Control */
+#define PCAP_REG_RX_AMPS	0xc	/* RX Audio Amplifiers Control */
+#define PCAP_REG_ST_DAC		0xd	/* Stereo DAC Control */
+#define PCAP_REG_BUSCTRL	0x14	/* Connectivity Control */
+#define PCAP_REG_PERIPH		0x15	/* Peripheral Control */
+#define PCAP_REG_LOWPWR		0x18	/* Regulator Low Power Control */
+#define PCAP_REG_TX_AMPS	0x1a	/* TX Audio Amplifiers Control */
+#define PCAP_REG_GP		0x1b	/* General Purpose */
+
+/* registers acessible by pcap port 1 only (a1200, e2 & e6) */
+#define PCAP_REG_INT_SEL	0x3	/* Interrupt Select */
+#define PCAP_REG_SWCTRL		0x4	/* Switching Regulator Control */
+#define PCAP_REG_VREG1		0x5	/* Regulator Bank 1 Control */
+#define PCAP_REG_RTC_TOD	0xe	/* RTC Time of Day */
+#define PCAP_REG_RTC_TODA	0xf	/* RTC Time of Day Alarm */
+#define PCAP_REG_RTC_DAY	0x10	/* RTC Day */
+#define PCAP_REG_RTC_DAYA	0x11	/* RTC Day Alarm */
+#define PCAP_REG_MTRTMR		0x12	/* AD Monitor Timer */
+#define PCAP_REG_PWR		0x13	/* Power Control */
+#define PCAP_REG_AUXVREG_MASK	0x16	/* Auxiliary Regulator Mask */
+#define PCAP_REG_VENDOR_REV	0x17
+#define PCAP_REG_PERIPH_MASK	0x19	/* Peripheral Mask */
+
+/* interrupts - registers 0, 1, 2, 3 */
+#define PCAP_IRQ_ADCDONE	(1 << 0)	/* AD Conversion Done Port 1 */
+#define PCAP_IRQ_TS		(1 << 1)	/* Touch Screen */
+#define PCAP_IRQ_1HZ		(1 << 2)	/* 1HZ Timer */
+#define PCAP_IRQ_WH		(1 << 3)
+#define PCAP_IRQ_WL		(1 << 4)
+#define PCAP_IRQ_TODA		(1 << 5)
+#define PCAP_IRQ_USB4V		(1 << 6)
+#define PCAP_IRQ_ONOFF		(1 << 7)
+#define PCAP_IRQ_ONOFF2		(1 << 8)
+#define PCAP_IRQ_USB1V		(1 << 9)
+#define PCAP_IRQ_MOBPORT	(1 << 10)
+#define PCAP_IRQ_MB2		(1 << 11)	/* Mic */
+#define PCAP_IRQ_A1		(1 << 12)	/* Audio jack */
+#define PCAP_IRQ_ST		(1 << 13)
+#define PCAP_IRQ_PC		(1 << 14)
+#define PCAP_IRQ_WARM		(1 << 15)
+#define PCAP_IRQ_EOL		(1 << 16)
+#define PCAP_IRQ_CLK		(1 << 17)
+#define PCAP_IRQ_SYSRST		(1 << 18)
+#define PCAP_IRQ_ADCDONE2	(1 << 20)	/* AD Conversion Done Port 2 */
+#define PCAP_IRQ_SOFTRESET	(1 << 21)
+#define PCAP_IRQ_MNEXB		(1 << 22)
+
+#define PCAP_BIT_VREG2_V1_STBY			pbit(PCAP_REG_VREG2, (1 << 0))
+#define PCAP_BIT_VREG2_V2_STBY			pbit(PCAP_REG_VREG2, (1 << 1))
+#define PCAP_BIT_VREG2_V3_STBY			pbit(PCAP_REG_VREG2, (1 << 2))
+#define PCAP_BIT_VREG2_V4_STBY			pbit(PCAP_REG_VREG2, (1 << 3))
+#define PCAP_BIT_VREG2_V5_STBY			pbit(PCAP_REG_VREG2, (1 << 4))
+#define PCAP_BIT_VREG2_V6_STBY			pbit(PCAP_REG_VREG2, (1 << 5))
+#define PCAP_BIT_VREG2_V7_STBY			pbit(PCAP_REG_VREG2, (1 << 6))
+#define PCAP_BIT_VREG2_V8_STBY			pbit(PCAP_REG_VREG2, (1 << 7))
+#define PCAP_BIT_VREG2_V9_STBY			pbit(PCAP_REG_VREG2, (1 << 8))
+#define PCAP_BIT_VREG2_V10_STBY			pbit(PCAP_REG_VREG2, (1 << 9))
+#define PCAP_BIT_VREG2_V1_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 10))
+#define PCAP_BIT_VREG2_V2_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 11))
+#define PCAP_BIT_VREG2_V3_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 12))
+#define PCAP_BIT_VREG2_V4_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 13))
+#define PCAP_BIT_VREG2_V5_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 14))
+#define PCAP_BIT_VREG2_V6_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 15))
+#define PCAP_BIT_VREG2_V7_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 16))
+#define PCAP_BIT_VREG2_V8_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 17))
+#define PCAP_BIT_VREG2_V9_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 18))
+#define PCAP_BIT_VREG2_V10_LOWPWR		pbit(PCAP_REG_VREG2, (1 << 19))
+
+#define PCAP_BIT_AUXVREG_VAUX1_EN		pbit(PCAP_REG_AUXVREG, (1 << 1))
+#define PCAP_AUXVREG_VAUX1_MASK			0x0000000c
+#define PCAP_AUXVREG_VAUX1_SHIFT		2
+#define PCAP_BIT_AUXVREG_VAUX2_EN		pbit(PCAP_REG_AUXVREG, (1 << 4))
+#define PCAP_AUXVREG_VAUX2_MASK			0x00000060
+#define PCAP_AUXVREG_VAUX2_SHIFT		5
+#define PCAP_BIT_AUXVREG_VAUX3_EN		pbit(PCAP_REG_AUXVREG, (1 << 7))
+#define PCAP_AUXVREG_VAUX3_MASK			0x00000f00
+#define PCAP_AUXVREG_VAUX3_SHIFT		8
+#define PCAP_BIT_AUXVREG_VAUX4_EN		pbit(PCAP_REG_AUXVREG, (1 << 12))
+#define PCAP_AUXVREG_VAUX4_MASK			0x00006000
+#define PCAP_AUXVREG_VAUX4_SHIFT		13
+#define PCAP_BIT_AUXVREG_VSIM2_EN		pbit(PCAP_REG_AUXVREG, (1 << 16))
+#define PCAP_BIT_AUXVREG_VSIM_EN		pbit(PCAP_REG_AUXVREG, (1 << 17))
+#define PCAP_BIT_AUXVREG_VSIM_0			pbit(PCAP_REG_AUXVREG, (1 << 18))
+#define PCAP_BIT_AUXVREG_V_VIB_EN		pbit(PCAP_REG_AUXVREG, (1 << 19))
+#define PCAP_AUXVREG_V_VIB_MASK			0x00300000
+#define PCAP_AUXVREG_V_VIB_SHIFT		20
+#define PCAP_BIT_AUXVREG_VAUX1_STBY		pbit(PCAP_REG_AUXVREG, (1 << 22))
+#define PCAP_BIT_AUXVREG_VAUX1_LOWPWR		pbit(PCAP_REG_AUXVREG, (1 << 23))
+#define PCAP_BIT_AUXVREG_SW3_STBY		pbit(PCAP_REG_AUXVREG, (1 << 24))
+
+#define PCAP_BATT_DAC_MASK			0x000000ff
+#define PCAP_BATT_DAC_SHIFT			0
+#define PCAP_BIT_BATT_B_FDBK			pbit(PCAP_REG_BATT, (1 << 8))
+#define PCAP_BIT_BATT_EXT_ISENSE		pbit(PCAP_REG_BATT, (1 << 9))
+#define PCAP_BATT_V_COIN_MASK			0x00003c00
+#define PCAP_BATT_V_COIN_SHIFT			10
+#define PCAP_BIT_BATT_I_COIN			pbit(PCAP_REG_BATT, (1 << 14))
+#define PCAP_BIT_BATT_COIN_CH_EN		pbit(PCAP_REG_BATT, (1 << 15))
+#define PCAP_BATT_EOL_SEL_MASK			0x000e0000
+#define PCAP_BATT_EOL_SEL_SHIFT			17
+#define PCAP_BIT_BATT_EOL_CMP_EN		pbit(PCAP_REG_BATT, (1 << 20))
+#define PCAP_BIT_BATT_BATT_DET_EN		pbit(PCAP_REG_BATT, (1 << 21))
+#define PCAP_BIT_BATT_THERMBIAS_CTRL		pbit(PCAP_REG_BATT, (1 << 22))
+
+#define PCAP_BIT_ADC1_ADEN			pbit(PCAP_REG_ADC1, (1 << 0))
+#define PCAP_BIT_ADC1_RAND			pbit(PCAP_REG_ADC1, (1 << 1))
+#define PCAP_BIT_ADC1_AD_SEL1			pbit(PCAP_REG_ADC1, (1 << 2))
+#define PCAP_BIT_ADC1_AD_SEL2			pbit(PCAP_REG_ADC1, (1 << 3))
+#define PCAP_ADC1_ADA1_MASK			0x00000070
+#define PCAP_ADC1_ADA1_SHIFT			4
+#define PCAP_ADC1_ADA2_MASK			0x00000380
+#define PCAP_ADC1_ADA2_SHIFT			7
+#define PCAP_ADC1_ATO_MASK			0x00003c00
+#define PCAP_ADC1_ATO_SHIFT			10
+#define PCAP_BIT_ADC1_ATOX			pbit(PCAP_REG_ADC1, (1 << 14))
+#define PCAP_BIT_ADC1_MTR1			pbit(PCAP_REG_ADC1, (1 << 15))
+#define PCAP_BIT_ADC1_MTR2			pbit(PCAP_REG_ADC1, (1 << 16))
+#define PCAP_ADC1_TS_M_MASK			0x000e0000
+#define PCAP_ADC1_TS_M_SHIFT			17
+#define PCAP_BIT_ADC1_TS_REF_LOWPWR		pbit(PCAP_REG_ADC1, (1 << 20))
+#define PCAP_BIT_ADC1_TS_REFENB			pbit(PCAP_REG_ADC1, (1 << 21))
+#define PCAP_BIT_ADC1_BATT_I_POLARITY		pbit(PCAP_REG_ADC1, (1 << 22))
+#define PCAP_BIT_ADC1_BATT_I_ADC		pbit(PCAP_REG_ADC1, (1 << 23))
+
+#define PCAP_ADC2_ADD1_MASK			0x000003ff
+#define PCAP_ADC2_ADD1_SHIFT			0
+#define PCAP_ADC2_ADD2_MASK			0x000ffc00
+#define PCAP_ADC2_ADD2_SHIFT			10
+#define PCAP_BIT_ADC2_ADINC1			pbit(PCAP_REG_ADC2, (1 << 20))
+#define PCAP_BIT_ADC2_ADINC2			pbit(PCAP_REG_ADC2, (1 << 21))
+#define PCAP_BIT_ADC2_ASC			pbit(PCAP_REG_ADC2, (1 << 22))
+
+#define PCAP_BIT_BUSCTRL_FSENB			0x50000001
+#define PCAP_BIT_BUSCTRL_USB_SUSPEND		0x50000002
+#define PCAP_BIT_BUSCTRL_USB_PU			0x50000004
+#define PCAP_BIT_BUSCTRL_USB_PD			0x50000008
+#define PCAP_BIT_BUSCTRL_VUSB_EN		0x50000010
+#define PCAP_BIT_BUSCTRL_USB_PS			0x50000020
+#define PCAP_BIT_BUSCTRL_VUSB_MSTR_EN		0x50000040
+#define PCAP_BIT_BUSCTRL_VBUS_PD_ENB		0x50000080
+#define PCAP_BIT_BUSCTRL_CURRLIM		0x50000100
+#define PCAP_BIT_BUSCTRL_RS232ENB		0x50000200
+#define PCAP_BIT_BUSCTRL_RS232_DIR		0x50000400
+#define PCAP_BIT_BUSCTRL_SE0_CONN		0x50000800
+#define PCAP_BIT_BUSCTRL_USB_PDM		0x50001000
+#define PCAP_BIT_BUSCTRL_BUS_PRI_ADJ		0x51000000
+
+#define PCAP_BIT_PERIPH_BL_CTRL0		0x54000001
+#define PCAP_BIT_PERIPH_BL_CTRL1		0x54000002
+#define PCAP_BIT_PERIPH_BL_CTRL2		0x54000004
+#define PCAP_BIT_PERIPH_BL_CTRL3		0x54000008
+#define PCAP_BIT_PERIPH_BL_CTRL4		0x54000010
+#define PCAP_BIT_PERIPH_LEDR_EN			0x54000020
+#define PCAP_BIT_PERIPH_LEDG_EN			0x54000040
+#define PCAP_BIT_PERIPH_LEDR_CTRL0		0x54000080
+#define PCAP_BIT_PERIPH_LEDR_CTRL1		0x54000100
+#define PCAP_BIT_PERIPH_LEDR_CTRL2		0x54000200
+#define PCAP_BIT_PERIPH_LEDR_CTRL3		0x54000400
+#define PCAP_BIT_PERIPH_LEDG_CTRL0		0x54000800
+#define PCAP_BIT_PERIPH_LEDG_CTRL1		0x54001000
+#define PCAP_BIT_PERIPH_LEDG_CTRL2		0x54002000
+#define PCAP_BIT_PERIPH_LEDG_CTRL3		0x54004000
+#define PCAP_BIT_PERIPH_LEDR_I0			0x54008000
+#define PCAP_BIT_PERIPH_LEDR_I1			0x54010000
+#define PCAP_BIT_PERIPH_LEDG_I0			0x54020000
+#define PCAP_BIT_PERIPH_LEDG_I1			0x54040000
+#define PCAP_BIT_PERIPH_SKIP			0x54080000
+#define PCAP_BIT_PERIPH_BL2_CTRL0		0x54100000
+#define PCAP_BIT_PERIPH_BL2_CTRL1		0x54200000
+#define PCAP_BIT_PERIPH_BL2_CTRL2		0x54400000
+#define PCAP_BIT_PERIPH_BL2_CTRL3		0x54800000
+#define PCAP_BIT_PERIPH_BL2_CTRL4		0x55000000
+
+#define PCAP_BIT_LOWPWR_VAUX2_STBY		0x60000001
+#define PCAP_BIT_LOWPWR_VAUX2_LOWPWR		0x60000002
+#define PCAP_BIT_LOWPWR_VAUX3_STBY		0x60000004
+#define PCAP_BIT_LOWPWR_VAUX3_LOWPWR		0x60000008
+#define PCAP_BIT_LOWPWR_VAUX4_STBY		0x60000010
+#define PCAP_BIT_LOWPWR_VAUX4_LOWPWR		0x60000020
+#define PCAP_BIT_LOWPWR_VSIM_LOWPWR		0x60000040
+#define PCAP_BIT_LOWPWR_VSIM2_LOWPWR		0x60000080
+#define PCAP_BIT_LOWPWR_SW1_MODE00		0x60000100
+#define PCAP_BIT_LOWPWR_SW1_MODE01		0x60000200
+#define PCAP_BIT_LOWPWR_SW1_MODE10		0x60000400
+#define PCAP_BIT_LOWPWR_SW1_MODE11		0x60000800
+#define PCAP_BIT_LOWPWR_SW10_DVS		0x60001000
+#define PCAP_BIT_LOWPWR_SW11_DVS		0x60002000
+#define PCAP_BIT_LOWPWR_SW12_DVS		0x60004000
+#define PCAP_BIT_LOWPWR_SW13_DVS		0x60008000
+#define PCAP_BIT_LOWPWR_SW2_MODE00		0x60010000
+#define PCAP_BIT_LOWPWR_SW2_MODE01		0x60020000
+#define PCAP_BIT_LOWPWR_SW2_MODE10		0x60040000
+#define PCAP_BIT_LOWPWR_SW2_MODE11		0x60080000
+#define PCAP_BIT_LOWPWR_SW20_DVS		0x60100000
+#define PCAP_BIT_LOWPWR_SW21_DVS		0x60200000
+#define PCAP_BIT_LOWPWR_SW22_DVS		0x60400000
+#define PCAP_BIT_LOWPWR_SW23_DVS		0x60800000
+#define PCAP_BIT_LOWPWR_VC_STBY			0x61000000
+
+extern int ezx_pcap_write(u_int8_t, u_int32_t);
+extern int ezx_pcap_read(u_int8_t, u_int32_t *);
+extern int ezx_pcap_bit_set(u_int32_t, u_int8_t);
+extern int ezx_pcap_bit_get(u_int32_t);
+extern void ezx_pcap_vibrator_level(u_int32_t);
+#endif
Index: linux-2.6.21/include/asm-arm/arch-pxa/irqs.h
===================================================================
--- linux-2.6.21.orig/include/asm-arm/arch-pxa/irqs.h	2007-08-31 22:28:17.000000000 -0300
+++ linux-2.6.21/include/asm-arm/arch-pxa/irqs.h	2007-08-31 22:34:36.000000000 -0300
@@ -85,7 +85,7 @@
  * within sensible limits.
  */
 #define IRQ_BOARD_START		(IRQ_GPIO(PXA_LAST_GPIO) + 1)
-#define IRQ_BOARD_END		(IRQ_BOARD_START + 16)
+#define IRQ_BOARD_END		(IRQ_BOARD_START + 22)
 
 #define IRQ_SA1111_START	(IRQ_BOARD_END)
 #define IRQ_GPAIN0		(IRQ_BOARD_END + 0)
@@ -176,7 +176,8 @@
 #define NR_IRQS			(IRQ_LOCOMO_SPI_TEND + 1)
 #elif defined(CONFIG_ARCH_LUBBOCK) || \
       defined(CONFIG_MACH_LOGICPD_PXA270) || \
-      defined(CONFIG_MACH_MAINSTONE)
+      defined(CONFIG_MACH_MAINSTONE) || \
+      defined(CONFIG_PXA_EZX)
 #define NR_IRQS			(IRQ_BOARD_END)
 #else
 #define NR_IRQS			(IRQ_BOARD_START)
@@ -222,3 +223,28 @@
 #define IRQ_LOCOMO_GPIO_BASE	(IRQ_BOARD_START + 1)
 #define IRQ_LOCOMO_LT_BASE	(IRQ_BOARD_START + 2)
 #define IRQ_LOCOMO_SPI_BASE	(IRQ_BOARD_START + 3)
+
+/* EZX Interrupts (CONFIG_EZX) */
+#define EZX_IRQ(x)             (IRQ_BOARD_START + (x))
+#define EZX_IRQ_USB4V          EZX_IRQ(0) /* EMU */
+#define EZX_IRQ_USB1V          EZX_IRQ(1) /* EMU */
+#define EZX_IRQ_HEADJACK       EZX_IRQ(2) /* Audio connector */
+#define EZX_IRQ_MIC            EZX_IRQ(3) /* Audio connector */
+#define EZX_IRQ_ADCDONE        EZX_IRQ(4)
+#define EZX_IRQ_TS             EZX_IRQ(5) /* TS touch */
+#define EZX_IRQ_ADCDONE2       EZX_IRQ(6) /* TS x/y ADC ready */
+#define EZX_IRQ_WH	       EZX_IRQ(7)
+#define EZX_IRQ_WL	       EZX_IRQ(8)
+#define EZX_IRQ_ONOFF	       EZX_IRQ(9)
+#define EZX_IRQ_ONOFF2	       EZX_IRQ(10)
+#define EZX_IRQ_MOBPORT	       EZX_IRQ(11)
+#define EZX_IRQ_TODA	       EZX_IRQ(12)
+#define EZX_IRQ_1HZ	       EZX_IRQ(13)
+#define EZX_IRQ_MNEXB	       EZX_IRQ(14)
+#define EZX_IRQ_ST	       EZX_IRQ(15)
+#define EZX_IRQ_PC	       EZX_IRQ(16)
+#define EZX_IRQ_SYSRST	       EZX_IRQ(17)
+#define EZX_IRQ_SOFTRESET      EZX_IRQ(18)
+#define EZX_IRQ_EOL	       EZX_IRQ(19)
+#define EZX_IRQ_CLK	       EZX_IRQ(20)
+#define EZX_IRQ_WARM	       EZX_IRQ(21)
Index: linux-2.6.21/arch/arm/mach-pxa/Kconfig
===================================================================
--- linux-2.6.21.orig/arch/arm/mach-pxa/Kconfig	2007-08-31 22:33:05.000000000 -0300
+++ linux-2.6.21/arch/arm/mach-pxa/Kconfig	2007-09-07 11:06:01.000000000 -0300
@@ -105,6 +105,9 @@
 config EZX_BP
 	bool "BP Control code for EZX Platform"
 
+config EZX_PCAP
+	bool "PCAP Support"
+
 endif
 
 endmenu
Index: linux-2.6.21/arch/arm/mach-pxa/Makefile
===================================================================
--- linux-2.6.21.orig/arch/arm/mach-pxa/Makefile	2007-08-31 22:33:05.000000000 -0300
+++ linux-2.6.21/arch/arm/mach-pxa/Makefile	2007-09-07 11:06:01.000000000 -0300
@@ -25,6 +25,7 @@
 obj-$(CONFIG_PXA_EZX_A1200)	+= ezx-a1200.o
 obj-$(CONFIG_PXA_EZX_E6)	+= ezx-e6.o
 obj-$(CONFIG_EZX_BP)		+= ezx-bp.o
+obj-$(CONFIG_EZX_PCAP)		+= ezx-pcap.o
 
 # Support for blinky lights
 led-y := leds.o