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Commit 648bf4fb authored by mark gross's avatar mark gross Committed by Linus Torvalds
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[PATCH] tlclk driver update 



some driver clean ups, and a re-posting of changes that are needed

to match the updated TPS.

Signed-off-by: default avatarMark Gross <mark.gross@intel.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent da9bb1d2

drivers/char/tlclk.c

+58 −35
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ 
#include <linux/kernel.h>	/* printk() */

#include <linux/fs.h>		/* everything... */

#include <linux/errno.h>	/* error codes */

#include <linux/delay.h>	/* udelay */

#include <linux/slab.h>

#include <linux/ioport.h>

#include <linux/interrupt.h>
@@ -156,6 +155,8 @@ This directory exports the following interfaces. There operation is 
documented in the MCPBL0010 TPS under the Telecom Clock API section, 11.4.

alarms				:

current_ref			:

received_ref_clk3a		:

received_ref_clk3b		:

enable_clk3a_output		:

enable_clk3b_output		:

enable_clka0_output		:
@@ -165,7 +166,7 @@ enable_clkb1_output : 
filter_select			:

hardware_switching		:

hardware_switching_mode		:

interrupt_switch		:

telclock_version		:

mode_select			:

refalign			:

reset				:
@@ -173,7 +174,6 @@ select_amcb1_transmit_clock : 
select_amcb2_transmit_clock	:

select_redundant_clock		:

select_ref_frequency		:

test_mode			:



All sysfs interfaces are integers in hex format, i.e echo 99 > refalign

has the same effect as echo 0x99 > refalign.
@@ -226,7 +226,7 @@ static int tlclk_release(struct inode *inode, struct file *filp) 
	return 0;

}



ssize_t tlclk_read(struct file *filp, char __user *buf, size_t count,

static ssize_t tlclk_read(struct file *filp, char __user *buf, size_t count,

		loff_t *f_pos)

{

	if (count < sizeof(struct tlclk_alarms))
@@ -242,7 +242,7 @@ ssize_t tlclk_read(struct file *filp, char __user *buf, size_t count, 
	return  sizeof(struct tlclk_alarms);

}



ssize_t tlclk_write(struct file *filp, const char __user *buf, size_t count,

static ssize_t tlclk_write(struct file *filp, const char __user *buf, size_t count,

	    loff_t *f_pos)

{

	return 0;
@@ -278,21 +278,21 @@ static ssize_t show_current_ref(struct device *d, 
static DEVICE_ATTR(current_ref, S_IRUGO, show_current_ref, NULL);





static ssize_t show_interrupt_switch(struct device *d,

static ssize_t show_telclock_version(struct device *d,

		struct device_attribute *attr, char *buf)

{

	unsigned long ret_val;

	unsigned long flags;



	spin_lock_irqsave(&event_lock, flags);

	ret_val = inb(TLCLK_REG6);

	ret_val = inb(TLCLK_REG5);

	spin_unlock_irqrestore(&event_lock, flags);



	return sprintf(buf, "0x%lX\n", ret_val);

}



static DEVICE_ATTR(interrupt_switch, S_IRUGO,

		show_interrupt_switch, NULL);

static DEVICE_ATTR(telclock_version, S_IRUGO,

		show_telclock_version, NULL);



static ssize_t show_alarms(struct device *d,

		struct device_attribute *attr,  char *buf)
@@ -309,6 +309,50 @@ static ssize_t show_alarms(struct device *d, 


static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);



static ssize_t store_received_ref_clk3a(struct device *d,

		 struct device_attribute *attr, const char *buf, size_t count)

{

	unsigned long tmp;

	unsigned char val;

	unsigned long flags;



	sscanf(buf, "%lX", &tmp);

	dev_dbg(d, ": tmp = 0x%lX\n", tmp);



	val = (unsigned char)tmp;

	spin_lock_irqsave(&event_lock, flags);

	SET_PORT_BITS(TLCLK_REG1, 0xef, val);

	spin_unlock_irqrestore(&event_lock, flags);



	return strnlen(buf, count);

}



static DEVICE_ATTR(received_ref_clk3a, S_IWUGO, NULL,

		store_received_ref_clk3a);





static ssize_t store_received_ref_clk3b(struct device *d,

		 struct device_attribute *attr, const char *buf, size_t count)

{

	unsigned long tmp;

	unsigned char val;

	unsigned long flags;



	sscanf(buf, "%lX", &tmp);

	dev_dbg(d, ": tmp = 0x%lX\n", tmp);



	val = (unsigned char)tmp;

	spin_lock_irqsave(&event_lock, flags);

	SET_PORT_BITS(TLCLK_REG1, 0xef, val << 1);

	spin_unlock_irqrestore(&event_lock, flags);



	return strnlen(buf, count);

}



static DEVICE_ATTR(received_ref_clk3b, S_IWUGO, NULL,

		store_received_ref_clk3b);





static ssize_t store_enable_clk3b_output(struct device *d,

		 struct device_attribute *attr, const char *buf, size_t count)

{
@@ -436,26 +480,6 @@ static ssize_t store_enable_clka0_output(struct device *d, 
static DEVICE_ATTR(enable_clka0_output, S_IWUGO, NULL,

		store_enable_clka0_output);



static ssize_t store_test_mode(struct device *d,

		struct device_attribute *attr,  const char *buf, size_t count)

{

	unsigned long flags;

	unsigned long tmp;

	unsigned char val;



	sscanf(buf, "%lX", &tmp);

	dev_dbg(d, "tmp = 0x%lX\n", tmp);



	val = (unsigned char)tmp;

	spin_lock_irqsave(&event_lock, flags);

	SET_PORT_BITS(TLCLK_REG4, 0xfd, 2);

	spin_unlock_irqrestore(&event_lock, flags);



	return strnlen(buf, count);

}



static DEVICE_ATTR(test_mode, S_IWUGO, NULL, store_test_mode);



static ssize_t store_select_amcb2_transmit_clock(struct device *d,

		struct device_attribute *attr, const char *buf, size_t count)

{
@@ -475,7 +499,7 @@ static ssize_t store_select_amcb2_transmit_clock(struct device *d, 
			SET_PORT_BITS(TLCLK_REG3, 0xc7, 0x38);

			switch (val) {

			case CLK_8_592MHz:

				SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);

				SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);

				break;

			case CLK_11_184MHz:

				SET_PORT_BITS(TLCLK_REG0, 0xfc, 0);
@@ -484,7 +508,7 @@ static ssize_t store_select_amcb2_transmit_clock(struct device *d, 
				SET_PORT_BITS(TLCLK_REG0, 0xfc, 3);

				break;

			case CLK_44_736MHz:

				SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);

				SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);

				break;

			}

		} else
@@ -653,9 +677,7 @@ static ssize_t store_refalign (struct device *d, 
	dev_dbg(d, "tmp = 0x%lX\n", tmp);

	spin_lock_irqsave(&event_lock, flags);

	SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);

	udelay(2);

	SET_PORT_BITS(TLCLK_REG0, 0xf7, 0x08);

	udelay(2);

	SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);

	spin_unlock_irqrestore(&event_lock, flags);
@@ -706,15 +728,16 @@ static DEVICE_ATTR(reset, S_IWUGO, NULL, store_reset); 


static struct attribute *tlclk_sysfs_entries[] = {

	&dev_attr_current_ref.attr,

	&dev_attr_interrupt_switch.attr,

	&dev_attr_telclock_version.attr,

	&dev_attr_alarms.attr,

	&dev_attr_received_ref_clk3a.attr,

	&dev_attr_received_ref_clk3b.attr,

	&dev_attr_enable_clk3a_output.attr,

	&dev_attr_enable_clk3b_output.attr,

	&dev_attr_enable_clkb1_output.attr,

	&dev_attr_enable_clka1_output.attr,

	&dev_attr_enable_clkb0_output.attr,

	&dev_attr_enable_clka0_output.attr,

	&dev_attr_test_mode.attr,

	&dev_attr_select_amcb1_transmit_clock.attr,

	&dev_attr_select_amcb2_transmit_clock.attr,

	&dev_attr_select_redundant_clock.attr,