diff options
Diffstat (limited to 'drivers/input/misc/atlas_btns.c')
| -rw-r--r-- | drivers/input/misc/atlas_btns.c | 99 |
1 files changed, 41 insertions, 58 deletions
diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c index e43e92fd9e2..638165c78e7 100644 --- a/drivers/input/misc/atlas_btns.c +++ b/drivers/input/misc/atlas_btns.c @@ -21,17 +21,19 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/input.h> #include <linux/types.h> +#include <linux/acpi.h> #include <asm/uaccess.h> -#include <acpi/acpi_drivers.h> -#define ACPI_ATLAS_NAME "Atlas ACPI" -#define ACPI_ATLAS_CLASS "Atlas" +#define ACPI_ATLAS_NAME "Atlas ACPI" +#define ACPI_ATLAS_CLASS "Atlas" +static unsigned short atlas_keymap[16]; static struct input_dev *input_dev; /* button handling code */ @@ -46,22 +48,24 @@ static acpi_status acpi_atlas_button_setup(acpi_handle region_handle, static acpi_status acpi_atlas_button_handler(u32 function, acpi_physical_address address, - u32 bit_width, acpi_integer *value, + u32 bit_width, u64 *value, void *handler_context, void *region_context) { acpi_status status; - int keycode; if (function == ACPI_WRITE) { - keycode = KEY_F1 + (address & 0x0F); - input_report_key(input_dev, keycode, !(address & 0x10)); + int code = address & 0x0f; + int key_down = !(address & 0x10); + + input_event(input_dev, EV_MSC, MSC_SCAN, code); + input_report_key(input_dev, atlas_keymap[code], key_down); input_sync(input_dev); - status = 0; + + status = AE_OK; } else { - printk(KERN_WARNING "atlas: shrugged on unexpected function" - ":function=%x,address=%lx,value=%x\n", + pr_warn("shrugged on unexpected function: function=%x,address=%lx,value=%x\n", function, (unsigned long)address, (u32)*value); - status = -EINVAL; + status = AE_BAD_PARAMETER; } return status; @@ -70,32 +74,35 @@ static acpi_status acpi_atlas_button_handler(u32 function, static int atlas_acpi_button_add(struct acpi_device *device) { acpi_status status; + int i; int err; input_dev = input_allocate_device(); if (!input_dev) { - printk(KERN_ERR "atlas: unable to allocate input device\n"); + pr_err("unable to allocate input device\n"); return -ENOMEM; } input_dev->name = "Atlas ACPI button driver"; input_dev->phys = "ASIM0000/atlas/input0"; input_dev->id.bustype = BUS_HOST; - input_dev->evbit[LONG(EV_KEY)] = BIT(EV_KEY); - - set_bit(KEY_F1, input_dev->keybit); - set_bit(KEY_F2, input_dev->keybit); - set_bit(KEY_F3, input_dev->keybit); - set_bit(KEY_F4, input_dev->keybit); - set_bit(KEY_F5, input_dev->keybit); - set_bit(KEY_F6, input_dev->keybit); - set_bit(KEY_F7, input_dev->keybit); - set_bit(KEY_F8, input_dev->keybit); - set_bit(KEY_F9, input_dev->keybit); + input_dev->keycode = atlas_keymap; + input_dev->keycodesize = sizeof(unsigned short); + input_dev->keycodemax = ARRAY_SIZE(atlas_keymap); + + input_set_capability(input_dev, EV_MSC, MSC_SCAN); + __set_bit(EV_KEY, input_dev->evbit); + for (i = 0; i < ARRAY_SIZE(atlas_keymap); i++) { + if (i < 9) { + atlas_keymap[i] = KEY_F1 + i; + __set_bit(KEY_F1 + i, input_dev->keybit); + } else + atlas_keymap[i] = KEY_RESERVED; + } err = input_register_device(input_dev); if (err) { - printk(KERN_ERR "atlas: couldn't register input device\n"); + pr_err("couldn't register input device\n"); input_free_device(input_dev); return err; } @@ -105,28 +112,26 @@ static int atlas_acpi_button_add(struct acpi_device *device) 0x81, &acpi_atlas_button_handler, &acpi_atlas_button_setup, device); if (ACPI_FAILURE(status)) { - printk(KERN_ERR "Atlas: Error installing addr spc handler\n"); + pr_err("error installing addr spc handler\n"); input_unregister_device(input_dev); - status = -EINVAL; + err = -EINVAL; } - return status; + return err; } -static int atlas_acpi_button_remove(struct acpi_device *device, int type) +static int atlas_acpi_button_remove(struct acpi_device *device) { acpi_status status; status = acpi_remove_address_space_handler(device->handle, 0x81, &acpi_atlas_button_handler); - if (ACPI_FAILURE(status)) { - printk(KERN_ERR "Atlas: Error removing addr spc handler\n"); - status = -EINVAL; - } + if (ACPI_FAILURE(status)) + pr_err("error removing addr spc handler\n"); input_unregister_device(input_dev); - return status; + return 0; } static const struct acpi_device_id atlas_device_ids[] = { @@ -138,36 +143,14 @@ MODULE_DEVICE_TABLE(acpi, atlas_device_ids); static struct acpi_driver atlas_acpi_driver = { .name = ACPI_ATLAS_NAME, .class = ACPI_ATLAS_CLASS, + .owner = THIS_MODULE, .ids = atlas_device_ids, .ops = { .add = atlas_acpi_button_add, .remove = atlas_acpi_button_remove, }, }; - -static int __init atlas_acpi_init(void) -{ - int result; - - if (acpi_disabled) - return -ENODEV; - - result = acpi_bus_register_driver(&atlas_acpi_driver); - if (result < 0) { - printk(KERN_ERR "Atlas ACPI: Unable to register driver\n"); - return -ENODEV; - } - - return 0; -} - -static void __exit atlas_acpi_exit(void) -{ - acpi_bus_unregister_driver(&atlas_acpi_driver); -} - -module_init(atlas_acpi_init); -module_exit(atlas_acpi_exit); +module_acpi_driver(atlas_acpi_driver); MODULE_AUTHOR("Jaya Kumar"); MODULE_LICENSE("GPL"); |