From fc215caab8c37c6e08dfc0d1dd4dd7f8deabd3ac Mon Sep 17 00:00:00 2001 From: Michael Gernoth Date: Mon, 4 Jul 2011 13:52:16 +0200 Subject: [PATCH 1/1] split out flags --- debounce.c | 173 +++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 162 insertions(+), 11 deletions(-) diff --git a/debounce.c b/debounce.c index cefa1d9..a5138c3 100644 --- a/debounce.c +++ b/debounce.c @@ -42,6 +42,7 @@ static void set_debounce_delay(long delay) printk(KERN_INFO PREFIX "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec); } +#if 0 if (gpio_evmi->debounce_delay.tv.nsec != 0) { if (!(gpio_evmi->flags & GPIOKPF_DEBOUNCE)) { printk(KERN_INFO PREFIX "Activating debounce\n"); @@ -53,6 +54,7 @@ static void set_debounce_delay(long delay) gpio_evmi->flags &= ~GPIOKPF_DEBOUNCE; } } +#endif } static ssize_t store_debounce_delay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -65,7 +67,7 @@ static ssize_t store_debounce_delay(struct device *dev, struct device_attribute sscanf(buf, "%ld", &delay); set_debounce_delay(delay); - return strnlen(buf, PAGE_SIZE); + return count; } static ssize_t show_settle_time(struct device *dev, struct device_attribute *attr, char *buf) @@ -86,7 +88,7 @@ static ssize_t store_settle_time(struct device *dev, struct device_attribute *at sscanf(buf, "%ld", &delay); gpio_evmi->settle_time.tv.nsec = delay * NSEC_PER_USEC; - return strnlen(buf, PAGE_SIZE); + return count; } static ssize_t show_poll_time(struct device *dev, struct device_attribute *attr, char *buf) @@ -107,7 +109,7 @@ static ssize_t store_poll_time(struct device *dev, struct device_attribute *attr sscanf(buf, "%ld", &delay); gpio_evmi->poll_time.tv.nsec = delay * NSEC_PER_MSEC; - return strnlen(buf, PAGE_SIZE); + return count; } static ssize_t show_flags(struct device *dev, struct device_attribute *attr, char *buf) @@ -126,15 +128,156 @@ static ssize_t store_flags(struct device *dev, struct device_attribute *attr, co return -ENODEV; sscanf(buf, "0x%x", &flags); + + printk(KERN_INFO PREFIX "flags: 0x%x\n", flags); + + if (flags & GPIOKPF_DRIVE_INACTIVE) + return count; + gpio_evmi->flags = flags; - return strnlen(buf, PAGE_SIZE); + return count; +} + +static ssize_t show_debounce_flag(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%u\n", (gpio_evmi->flags & GPIOKPF_DEBOUNCE) ? 1 : 0); } -static DEVICE_ATTR(debounce_delay, (S_IRUGO | S_IWUGO), &show_debounce_delay, store_debounce_delay); -static DEVICE_ATTR(settle_time, (S_IRUGO | S_IWUGO), &show_settle_time, store_settle_time); -static DEVICE_ATTR(poll_time, (S_IRUGO | S_IWUGO), &show_poll_time, store_poll_time); -static DEVICE_ATTR(flags, (S_IRUGO | S_IWUGO), &show_flags, store_flags); +static ssize_t store_debounce_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_DEBOUNCE; + } else { + gpio_evmi->flags &= ~GPIOKPF_DEBOUNCE; + } + + return count; +} + +static ssize_t show_remove_some_phantom_keys_flag(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%u\n", (gpio_evmi->flags & GPIOKPF_REMOVE_SOME_PHANTOM_KEYS) ? 1 : 0); +} + +static ssize_t store_remove_some_phantom_keys_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_REMOVE_SOME_PHANTOM_KEYS; + } else { + gpio_evmi->flags &= ~GPIOKPF_REMOVE_SOME_PHANTOM_KEYS; + } + + return count; +} + +static ssize_t show_print_unmapped_keys_flag(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%u\n", (gpio_evmi->flags & GPIOKPF_PRINT_UNMAPPED_KEYS) ? 1 : 0); +} + +static ssize_t store_print_unmapped_keys_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_PRINT_UNMAPPED_KEYS; + } else { + gpio_evmi->flags &= ~GPIOKPF_PRINT_UNMAPPED_KEYS; + } + + return count; +} + +static ssize_t show_print_mapped_keys_flag(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%u\n", (gpio_evmi->flags & GPIOKPF_PRINT_MAPPED_KEYS) ? 1 : 0); +} + +static ssize_t store_print_mapped_keys_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_PRINT_MAPPED_KEYS; + } else { + gpio_evmi->flags &= ~GPIOKPF_PRINT_MAPPED_KEYS; + } + + return count; +} + +static ssize_t show_print_phantom_keys_flag(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%u\n", (gpio_evmi->flags & GPIOKPF_PRINT_PHANTOM_KEYS) ? 1 : 0); +} + +static ssize_t store_print_phantom_keys_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_PRINT_PHANTOM_KEYS; + } else { + gpio_evmi->flags &= ~GPIOKPF_PRINT_PHANTOM_KEYS; + } + + return count; +} + +static DEVICE_ATTR(debounce_delay, (S_IRUGO | S_IWUGO), show_debounce_delay, store_debounce_delay); +static DEVICE_ATTR(settle_time, (S_IRUGO | S_IWUGO), show_settle_time, store_settle_time); +static DEVICE_ATTR(poll_time, (S_IRUGO | S_IWUGO), show_poll_time, store_poll_time); +static DEVICE_ATTR(flags, (S_IRUGO), show_flags, store_flags); +static DEVICE_ATTR(debounce_flag, (S_IRUGO | S_IWUGO), show_debounce_flag, store_debounce_flag); +static DEVICE_ATTR(remove_some_phantom_keys_flag, (S_IRUGO | S_IWUGO), show_remove_some_phantom_keys_flag, store_remove_some_phantom_keys_flag); +static DEVICE_ATTR(print_unmapped_keys_flag, (S_IRUGO | S_IWUGO), show_print_unmapped_keys_flag, store_print_unmapped_keys_flag); +static DEVICE_ATTR(print_mapped_keys_flag, (S_IRUGO | S_IWUGO), show_print_mapped_keys_flag, store_print_mapped_keys_flag); +static DEVICE_ATTR(print_phantom_keys_flag, (S_IRUGO | S_IWUGO), show_print_phantom_keys_flag, store_print_phantom_keys_flag); static void debounce_release(struct device *dev) { @@ -175,6 +318,11 @@ static int __init debounce_init(void) err = device_create_file(&debounce_device, &dev_attr_settle_time); err = device_create_file(&debounce_device, &dev_attr_poll_time); err = device_create_file(&debounce_device, &dev_attr_flags); + err = device_create_file(&debounce_device, &dev_attr_debounce_flag); + err = device_create_file(&debounce_device, &dev_attr_remove_some_phantom_keys_flag); + err = device_create_file(&debounce_device, &dev_attr_print_unmapped_keys_flag); + err = device_create_file(&debounce_device, &dev_attr_print_mapped_keys_flag); + err = device_create_file(&debounce_device, &dev_attr_print_phantom_keys_flag); printk(KERN_INFO PREFIX "settle_time: %u\n", gpio_evmi->settle_time.tv.nsec); printk(KERN_INFO PREFIX "poll_time: %u\n", gpio_evmi->poll_time.tv.nsec); @@ -187,9 +335,7 @@ static int __init debounce_init(void) old_flags = gpio_evmi->flags; set_debounce_delay(debounce_delay); -#if 0 - gpio_evmi->flags &= ~GPIOKPF_REMOVE_SOME_PHANTOM_KEYS; -#endif + printk(KERN_INFO PREFIX "flags: 0x%x\n", gpio_evmi->flags); return 0; @@ -215,6 +361,11 @@ static void __exit debounce_exit(void) device_remove_file(&debounce_device, &dev_attr_settle_time); device_remove_file(&debounce_device, &dev_attr_poll_time); device_remove_file(&debounce_device, &dev_attr_flags); + device_remove_file(&debounce_device, &dev_attr_debounce_flag); + device_remove_file(&debounce_device, &dev_attr_remove_some_phantom_keys_flag); + device_remove_file(&debounce_device, &dev_attr_print_unmapped_keys_flag); + device_remove_file(&debounce_device, &dev_attr_print_mapped_keys_flag); + device_remove_file(&debounce_device, &dev_attr_print_phantom_keys_flag); device_unregister(&debounce_device); } -- 2.39.5