Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4f8d9cae authored by Russell King's avatar Russell King
Browse files

ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c 



Move the PS/2 interface register definitions into the driver, rather
than keeping them in a common location.

Acked-by: default avatarNicolas Pitre <nico@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 6995f5b0

arch/arm/include/asm/hardware/sa1111.h

+1 −38
Original line number Diff line number Diff line
@@ -409,47 +409,10 @@ 
#define SA1111_WAKEPOL0		0x0034

#define SA1111_WAKEPOL1		0x0038



/*

 * PS/2 Trackpad and Mouse Interfaces

 *

 * Registers

 *    PS2CR		Control Register

 *    PS2STAT		Status Register

 *    PS2DATA		Transmit/Receive Data register

 *    PS2CLKDIV		Clock Division Register

 *    PS2PRECNT		Clock Precount Register

 *    PS2TEST1		Test register 1

 *    PS2TEST2		Test register 2

 *    PS2TEST3		Test register 3

 *    PS2TEST4		Test register 4

 */



/* PS/2 Trackpad and Mouse Interfaces */

#define SA1111_KBD		0x0a00

#define SA1111_MSE		0x0c00



/*

 * These are offsets from the above bases.

 */

#define SA1111_PS2CR		0x0000

#define SA1111_PS2STAT		0x0004

#define SA1111_PS2DATA		0x0008

#define SA1111_PS2CLKDIV	0x000c

#define SA1111_PS2PRECNT	0x0010



#define PS2CR_ENA		0x08

#define PS2CR_FKD		0x02

#define PS2CR_FKC		0x01



#define PS2STAT_STP		0x0100

#define PS2STAT_TXE		0x0080

#define PS2STAT_TXB		0x0040

#define PS2STAT_RXF		0x0020

#define PS2STAT_RXB		0x0010

#define PS2STAT_ENA		0x0008

#define PS2STAT_RXP		0x0004

#define PS2STAT_KBD		0x0002

#define PS2STAT_KBC		0x0001



/*

 * PCMCIA Interface

 *

drivers/input/serio/sa1111ps2.c

+36 −16
Original line number Diff line number Diff line
@@ -24,6 +24,26 @@ 


#include <asm/hardware/sa1111.h>



#define PS2CR		0x0000

#define PS2STAT		0x0004

#define PS2DATA		0x0008

#define PS2CLKDIV	0x000c

#define PS2PRECNT	0x0010



#define PS2CR_ENA	0x08

#define PS2CR_FKD	0x02

#define PS2CR_FKC	0x01



#define PS2STAT_STP	0x0100

#define PS2STAT_TXE	0x0080

#define PS2STAT_TXB	0x0040

#define PS2STAT_RXF	0x0020

#define PS2STAT_RXB	0x0010

#define PS2STAT_ENA	0x0008

#define PS2STAT_RXP	0x0004

#define PS2STAT_KBD	0x0002

#define PS2STAT_KBC	0x0001



struct ps2if {

	struct serio		*io;

	struct sa1111_dev	*dev;
@@ -45,22 +65,22 @@ static irqreturn_t ps2_rxint(int irq, void *dev_id) 
	struct ps2if *ps2if = dev_id;

	unsigned int scancode, flag, status;



	status = sa1111_readl(ps2if->base + SA1111_PS2STAT);

	status = sa1111_readl(ps2if->base + PS2STAT);

	while (status & PS2STAT_RXF) {

		if (status & PS2STAT_STP)

			sa1111_writel(PS2STAT_STP, ps2if->base + SA1111_PS2STAT);

			sa1111_writel(PS2STAT_STP, ps2if->base + PS2STAT);



		flag = (status & PS2STAT_STP ? SERIO_FRAME : 0) |

		       (status & PS2STAT_RXP ? 0 : SERIO_PARITY);



		scancode = sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff;

		scancode = sa1111_readl(ps2if->base + PS2DATA) & 0xff;



		if (hweight8(scancode) & 1)

			flag ^= SERIO_PARITY;



		serio_interrupt(ps2if->io, scancode, flag);



		status = sa1111_readl(ps2if->base + SA1111_PS2STAT);

		status = sa1111_readl(ps2if->base + PS2STAT);

        }



        return IRQ_HANDLED;
@@ -75,12 +95,12 @@ static irqreturn_t ps2_txint(int irq, void *dev_id) 
	unsigned int status;



	spin_lock(&ps2if->lock);

	status = sa1111_readl(ps2if->base + SA1111_PS2STAT);

	status = sa1111_readl(ps2if->base + PS2STAT);

	if (ps2if->head == ps2if->tail) {

		disable_irq_nosync(irq);

		/* done */

	} else if (status & PS2STAT_TXE) {

		sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA);

		sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + PS2DATA);

		ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);

	}

	spin_unlock(&ps2if->lock);
@@ -103,8 +123,8 @@ static int ps2_write(struct serio *io, unsigned char val) 
	/*

	 * If the TX register is empty, we can go straight out.

	 */

	if (sa1111_readl(ps2if->base + SA1111_PS2STAT) & PS2STAT_TXE) {

		sa1111_writel(val, ps2if->base + SA1111_PS2DATA);

	if (sa1111_readl(ps2if->base + PS2STAT) & PS2STAT_TXE) {

		sa1111_writel(val, ps2if->base + PS2DATA);

	} else {

		if (ps2if->head == ps2if->tail)

			enable_irq(ps2if->dev->irq[1]);
@@ -151,7 +171,7 @@ static int ps2_open(struct serio *io) 


	enable_irq_wake(ps2if->dev->irq[0]);



	sa1111_writel(PS2CR_ENA, ps2if->base + SA1111_PS2CR);

	sa1111_writel(PS2CR_ENA, ps2if->base + PS2CR);

	return 0;

}
@@ -159,7 +179,7 @@ static void ps2_close(struct serio *io) 
{

	struct ps2if *ps2if = io->port_data;



	sa1111_writel(0, ps2if->base + SA1111_PS2CR);

	sa1111_writel(0, ps2if->base + PS2CR);



	disable_irq_wake(ps2if->dev->irq[0]);
@@ -179,7 +199,7 @@ static void __devinit ps2_clear_input(struct ps2if *ps2if) 
	int maxread = 100;



	while (maxread--) {

		if ((sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff) == 0xff)

		if ((sa1111_readl(ps2if->base + PS2DATA) & 0xff) == 0xff)

			break;

	}

}
@@ -189,11 +209,11 @@ static unsigned int __devinit ps2_test_one(struct ps2if *ps2if, 
{

	unsigned int val;



	sa1111_writel(PS2CR_ENA | mask, ps2if->base + SA1111_PS2CR);

	sa1111_writel(PS2CR_ENA | mask, ps2if->base + PS2CR);



	udelay(2);



	val = sa1111_readl(ps2if->base + SA1111_PS2STAT);

	val = sa1111_readl(ps2if->base + PS2STAT);

	return val & (PS2STAT_KBC | PS2STAT_KBD);

}
@@ -224,7 +244,7 @@ static int __devinit ps2_test(struct ps2if *ps2if) 
		ret = -ENODEV;

	}



	sa1111_writel(0, ps2if->base + SA1111_PS2CR);

	sa1111_writel(0, ps2if->base + PS2CR);



	return ret;

}
@@ -278,8 +298,8 @@ static int __devinit ps2_probe(struct sa1111_dev *dev) 
	sa1111_enable_device(ps2if->dev);



	/* Incoming clock is 8MHz */

	sa1111_writel(0, ps2if->base + SA1111_PS2CLKDIV);

	sa1111_writel(127, ps2if->base + SA1111_PS2PRECNT);

	sa1111_writel(0, ps2if->base + PS2CLKDIV);

	sa1111_writel(127, ps2if->base + PS2PRECNT);



	/*

	 * Flush any pending input.