X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/ms2-fixes/blobdiff_plain/20bf1c9e511d6839d28a6b3a24dfe66a3d700484..126529c5b9a099c6ce08f3557e6aa3f57a4e75dc:/debounce.c?ds=sidebyside diff --git a/debounce.c b/debounce.c index 7489f8c..b69e1bc 100644 --- a/debounce.c +++ b/debounce.c @@ -2,57 +2,686 @@ #include #include #include +#include +#include +#include +#include +#include +#include -int find_ms2_dev(struct device *dev, void *data) +#define PREFIX "debounce: " + +#define PADCONF_PULL_UP ( OMAP343X_PADCONF_OFF_WAKEUP_ENABLED | \ + OMAP343X_PADCONF_INPUT_ENABLED | \ + OMAP343X_PADCONF_PULL_UP | \ + OMAP343X_PADCONF_PUD_ENABLED | \ + OMAP343X_PADCONF_MUXMODE4 ) + +#define PADCONF_PULL_DOWN ( OMAP343X_PADCONF_OFF_WAKEUP_ENABLED | \ + OMAP343X_PADCONF_INPUT_ENABLED | \ + OMAP343X_PADCONF_PULL_DOWN | \ + OMAP343X_PADCONF_PUD_ENABLED | \ + OMAP343X_PADCONF_MUXMODE4 ) + +#define OMAP_CTRL_REGADDR(reg) (OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE) + (reg)) + +static unsigned old_flags = 0; +static ktime_t old_debounce_delay; +static ktime_t old_settle_time; +static ktime_t old_poll_time; +static int (*old_sw_fixup)(int index); +static struct gpio_event_matrix_info *gpio_evmi = NULL; +static int hw_debounce = 0; +static int hw_debounce_time = 0; + +struct gpio_event { + struct gpio_event_input_devs *input_devs; + const struct gpio_event_platform_data *info; + struct early_suspend early_suspend; + void *state[0]; +}; + +struct gpio_kp { + struct gpio_event_input_devs *input_devs; + struct gpio_event_matrix_info *keypad_info; + struct hrtimer timer; + struct wake_lock wake_lock; + int current_output; + unsigned int use_irq:1; + unsigned int key_state_changed:1; + unsigned int last_key_state_changed:1; + unsigned int some_keys_pressed:2; + unsigned long keys_pressed[0]; +}; + +static struct gpio_kp *gpio_kp_state = NULL; + +static int find_ms2_dev(struct device *dev, void *data) { if (!strncmp((char*)data, dev_name(dev), strlen((char*)data))) { - printk(KERN_INFO "Found it!\n"); + printk(KERN_INFO PREFIX "Found it\n"); return 1; } return 0; } +/* hardware debounce: (time + 1) * 31us */ +static void hw_debounce_set(int enable, int time) { + int i; + + if (gpio_evmi == NULL) + return; + + for (i = 0; i < gpio_evmi->ninputs; i++) { + int gpio = gpio_evmi->input_gpios[i]; + + if ((time != -1) && (time != hw_debounce_time) && hw_debounce) { + printk(KERN_INFO PREFIX "Setting hardware debounce time for GPIO %d to %d (%dus)\n", gpio, time, (time+1)*31); + omap_set_gpio_debounce_time(gpio, time); + } + + if ((enable != -1) && (enable != hw_debounce)) { + printk(KERN_INFO PREFIX "%sabling hardware debounce for GPIO %d\n", (enable?"En":"Dis"), gpio); + omap_set_gpio_debounce(gpio, enable); + } + } +} + +static void set_irq_types(void) { + int err; + unsigned int irq; + unsigned long type; + int i; + + if (gpio_evmi == NULL) + return; + + switch (gpio_evmi->flags & (GPIOKPF_ACTIVE_HIGH|GPIOKPF_LEVEL_TRIGGERED_IRQ)) { + default: + type = IRQ_TYPE_EDGE_FALLING; + break; + case GPIOKPF_ACTIVE_HIGH: + type = IRQ_TYPE_EDGE_RISING; + break; + case GPIOKPF_LEVEL_TRIGGERED_IRQ: + type = IRQ_TYPE_LEVEL_LOW; + break; + case GPIOKPF_LEVEL_TRIGGERED_IRQ | GPIOKPF_ACTIVE_HIGH: + type = IRQ_TYPE_LEVEL_HIGH; + break; + } + + printk(KERN_INFO PREFIX "Settinhg IRQ type to 0x%lx\n", type); + + for (i = 0; i < gpio_evmi->ninputs; i++) { + + err = irq = gpio_to_irq(gpio_evmi->input_gpios[i]); + + if (err < 0) + return; + + err = set_irq_type(irq, type); + } +} + +static ssize_t show_debounce_delay(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%ld\n", (gpio_evmi->debounce_delay.tv.nsec / NSEC_PER_MSEC)); +} + +static void set_debounce_delay(long delay) +{ + if (gpio_evmi->debounce_delay.tv.nsec != delay * NSEC_PER_MSEC) { + printk(KERN_INFO PREFIX "Changing debounce_delay\n"); + gpio_evmi->debounce_delay.tv.nsec = delay * NSEC_PER_MSEC; + 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"); + gpio_evmi->flags |= GPIOKPF_DEBOUNCE; + } + } else { + if (gpio_evmi->flags & GPIOKPF_DEBOUNCE) { + printk(KERN_INFO PREFIX "Deactivating debounce\n"); + 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) +{ + long int delay; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%ld", &delay); + set_debounce_delay(delay); + + return count; +} + +static ssize_t show_settle_time(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%ld\n", (gpio_evmi->settle_time.tv.nsec / NSEC_PER_USEC)); +} + +static ssize_t store_settle_time(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + long int delay; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%ld", &delay); + gpio_evmi->settle_time.tv.nsec = delay * NSEC_PER_USEC; + + return count; +} + +static ssize_t show_poll_time(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "%ld\n", (gpio_evmi->poll_time.tv.nsec / NSEC_PER_MSEC)); +} + +static ssize_t store_poll_time(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + long int delay; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%ld", &delay); + gpio_evmi->poll_time.tv.nsec = delay * NSEC_PER_MSEC; + + return count; +} + +static ssize_t show_flags(struct device *dev, struct device_attribute *attr, char *buf) +{ + if (!gpio_evmi) + return -ENODEV; + + return snprintf(buf, PAGE_SIZE, "0x%x\n", gpio_evmi->flags); +} + +static ssize_t store_flags(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flags; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "0x%x", &flags); + + printk(KERN_INFO PREFIX "flags: 0x%x\n", flags); + + gpio_evmi->flags = flags; + + 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 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 ssize_t show_active_high_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_ACTIVE_HIGH) ? 1 : 0); +} + +static ssize_t store_active_high_flag(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned flag; + int i; + + if (!gpio_evmi) + return -ENODEV; + + sscanf(buf, "%u", &flag); + + if (flag) { + gpio_evmi->flags |= GPIOKPF_ACTIVE_HIGH; + for (i = 0x7a; i <= 0x88; i += 2) { + __raw_writew(PADCONF_PULL_DOWN, OMAP_CTRL_REGADDR(i)); + } + } else { + gpio_evmi->flags &= ~GPIOKPF_ACTIVE_HIGH; + for (i = 0x7a; i <= 0x88; i += 2) { + __raw_writew(PADCONF_PULL_UP, OMAP_CTRL_REGADDR(i)); + } + } + + set_irq_types(); + + return count; +} + +static ssize_t show_level_triggered_irq_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_LEVEL_TRIGGERED_IRQ) ? 1 : 0); +} + +static ssize_t store_level_triggered_irq_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_LEVEL_TRIGGERED_IRQ; + } else { + gpio_evmi->flags &= ~GPIOKPF_LEVEL_TRIGGERED_IRQ; + } + + set_irq_types(); + + return count; +} + +static ssize_t show_drive_inactive_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_DRIVE_INACTIVE) ? 1 : 0); +} + +static ssize_t store_drive_inactive_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_DRIVE_INACTIVE; + } else { + gpio_evmi->flags &= ~GPIOKPF_DRIVE_INACTIVE; + } + + return count; +} + +static ssize_t show_hw_debounce(struct device *dev, struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", hw_debounce); +} + +static ssize_t store_hw_debounce(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + int enable; + + sscanf(buf, "%d", &enable); + + if (enable) { + hw_debounce_set(1, -1); + hw_debounce = 1; + } + else { + hw_debounce_set(-1, 0); + hw_debounce_set(0, -1); + hw_debounce = 0; + hw_debounce_time = 0; + } + + return count; +} + +static ssize_t show_hw_debounce_time(struct device *dev, struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", hw_debounce_time); +} + +static ssize_t store_hw_debounce_time(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + int time; + + sscanf(buf, "%d", &time); + + if ((time < 0) || (time > 0xff)) + return count; + + if (!hw_debounce) + return count; + + hw_debounce_set(-1, time); + hw_debounce_time = time; + + 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 DEVICE_ATTR(active_high_flag, (S_IRUGO | S_IWUGO), show_active_high_flag, store_active_high_flag); +static DEVICE_ATTR(level_triggered_irq_flag, (S_IRUGO | S_IWUGO), show_level_triggered_irq_flag, store_level_triggered_irq_flag); +static DEVICE_ATTR(drive_inactive_flag, (S_IRUGO | S_IWUGO), show_drive_inactive_flag, store_drive_inactive_flag); +static DEVICE_ATTR(hw_debounce, (S_IRUGO | S_IWUGO), show_hw_debounce, store_hw_debounce); +static DEVICE_ATTR(hw_debounce_time, (S_IRUGO | S_IWUGO), show_hw_debounce_time, store_hw_debounce_time); + +#if 0 +static int debounce_fixup(int index) +{ + int ret; + + printk(KERN_INFO PREFIX "key_state_changed: %d, last_key_state_changed: %d, some_keys_pressed: %d\n", + gpio_kp_state->key_state_changed, + gpio_kp_state->last_key_state_changed, + gpio_kp_state->some_keys_pressed); + + ret = old_sw_fixup(index); + if (!ret) + printk(KERN_INFO PREFIX "Index 0x%x ignored!\n", index); + + return ret; +} +#endif + +static void debounce_release(struct device *dev) +{ +} + +static struct device debounce_device = { + .init_name = "debounce", + .release = debounce_release, +}; + static int __init debounce_init(void) { struct device *event_dev = NULL; + struct platform_device *pdev = NULL; struct gpio_event_platform_data *gpio_epd; struct gpio_event_info *gpio_ei; - struct gpio_event_matrix_info *gpio_evmi; - - printk(KERN_INFO "Searching for " GPIO_EVENT_DEV_NAME "...\n"); + struct gpio_event *gpio_e; + int err = 0; + int i; + printk(KERN_INFO PREFIX "Searching for " GPIO_EVENT_DEV_NAME "...\n"); event_dev = device_find_child(&platform_bus, GPIO_EVENT_DEV_NAME, find_ms2_dev); if (event_dev == NULL) return -ENODEV; - + + pdev = container_of(event_dev, struct platform_device, dev); + if (pdev == NULL) + return -ENODEV; + gpio_epd = (struct gpio_event_platform_data*)event_dev->platform_data; - printk(KERN_INFO "And there is a %s connected...\n", gpio_epd->name); + printk(KERN_INFO PREFIX "And there is a %s connected...\n", gpio_epd->name); if (strcmp(gpio_epd->name, "sholes-keypad")) return -ENODEV; gpio_ei = (struct gpio_event_info*)gpio_epd->info[0]; gpio_evmi = container_of(gpio_ei, struct gpio_event_matrix_info, info); - printk(KERN_INFO "settle_time: %u\n", gpio_evmi->settle_time.tv.nsec); - printk(KERN_INFO "poll_time: %u\n", gpio_evmi->poll_time.tv.nsec); - printk(KERN_INFO "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec); - printk(KERN_INFO "flags: %x\n", gpio_evmi->flags); - if (!gpio_evmi->debounce_delay.tv.nsec) { - printk(KERN_INFO "Activating debounce!\n"); - gpio_evmi->debounce_delay.tv.nsec = 5 * NSEC_PER_MSEC; + gpio_e = platform_get_drvdata(pdev); + printk(KERN_INFO PREFIX "Number of states: %d\n", gpio_e->info->info_count); - /* GPIOKPF_DEBOUNCE should already be set by GPIOKPF_REMOVE_PHANTOM_KEYS */ - gpio_evmi->flags |= GPIOKPF_DEBOUNCE; - printk(KERN_INFO "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec); - printk(KERN_INFO "flags: %x\n", gpio_evmi->flags); + /* Search for correct gpio_event state */ + for (i = 0; i < gpio_e->info->info_count; i++) { + if (gpio_e->info->info[i]->func == gpio_ei->func) { + printk(KERN_INFO PREFIX "Keypad state: %d\n", i); + gpio_kp_state = gpio_e->state[i]; + } + } + + if (!gpio_kp_state) { + printk(KERN_ERR PREFIX "Can't determine correct keypad state!\n"); + return -ENODEV; + } + + printk(KERN_INFO PREFIX "kp_use_irq: %d\n", gpio_kp_state->use_irq); +#if 0 + gpio_kp_state->use_irq=0; + hrtimer_start(&(gpio_kp_state->timer), gpio_evmi->poll_time, HRTIMER_MODE_REL); + printk(KERN_INFO PREFIX "kp_use_irq: %d\n", gpio_kp_state->use_irq); +#endif + + err = device_register(&debounce_device); + if (err) { + return err; } + err = device_create_file(&debounce_device, &dev_attr_debounce_delay); + 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); + err = device_create_file(&debounce_device, &dev_attr_active_high_flag); + err = device_create_file(&debounce_device, &dev_attr_level_triggered_irq_flag); + err = device_create_file(&debounce_device, &dev_attr_drive_inactive_flag); + err = device_create_file(&debounce_device, &dev_attr_hw_debounce); + err = device_create_file(&debounce_device, &dev_attr_hw_debounce_time); + + 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); + printk(KERN_INFO PREFIX "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec); + printk(KERN_INFO PREFIX "flags: 0x%x\n", gpio_evmi->flags); + + old_debounce_delay = gpio_evmi->debounce_delay; + old_settle_time = gpio_evmi->settle_time; + old_poll_time = gpio_evmi->poll_time; + old_flags = gpio_evmi->flags; + old_sw_fixup = gpio_evmi->sw_fixup; + +#if 0 + printk(KERN_INFO PREFIX "Registering fixup handler\n"); + gpio_evmi->sw_fixup = debounce_fixup; +#endif + return 0; } static void __exit debounce_exit(void) { + int i; + + if (gpio_evmi) { + if (gpio_evmi->debounce_delay.tv.nsec != old_debounce_delay.tv.nsec) { + printk(KERN_INFO PREFIX "Restoring debounce_delay\n"); + gpio_evmi->debounce_delay = old_debounce_delay; + printk(KERN_INFO PREFIX "debounce_delay: %u\n", gpio_evmi->debounce_delay.tv.nsec); + } + if (gpio_evmi->flags != old_flags) { + printk(KERN_INFO PREFIX "Restoring flags\n"); + gpio_evmi->flags = old_flags; + printk(KERN_INFO PREFIX "flags: 0x%x\n", gpio_evmi->flags); + if (gpio_evmi->flags & GPIOKPF_ACTIVE_HIGH) { + for (i = 0x7a; i <= 0x88; i += 2) { + __raw_writew(PADCONF_PULL_DOWN, OMAP_CTRL_REGADDR(i)); + } + } else { + for (i = 0x7a; i <= 0x88; i += 2) { + __raw_writew(PADCONF_PULL_UP, OMAP_CTRL_REGADDR(i)); + } + } + set_irq_types(); + } + gpio_evmi->settle_time = old_settle_time; + gpio_evmi->poll_time = old_poll_time; + + if (gpio_evmi->sw_fixup != old_sw_fixup) { + printk(KERN_INFO PREFIX "Restoring fixup handler\n"); + gpio_evmi->sw_fixup = old_sw_fixup; + } + } + hw_debounce_set(0, 0); + device_remove_file(&debounce_device, &dev_attr_debounce_delay); + 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_remove_file(&debounce_device, &dev_attr_active_high_flag); + device_remove_file(&debounce_device, &dev_attr_level_triggered_irq_flag); + device_remove_file(&debounce_device, &dev_attr_drive_inactive_flag); + device_remove_file(&debounce_device, &dev_attr_hw_debounce); + device_remove_file(&debounce_device, &dev_attr_hw_debounce_time); + device_unregister(&debounce_device); } module_init(debounce_init);