diff options
Diffstat (limited to 'drivers/char/tlclk.c')
| -rw-r--r-- | drivers/char/tlclk.c | 93 |
1 files changed, 58 insertions, 35 deletions
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c index bc56df8a3474..4c272189cd42 100644 --- a/drivers/char/tlclk.c +++ b/drivers/char/tlclk.c @@ -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, |