diff options
| -rw-r--r-- | drivers/hid/hid-cougar.c | 66 |
1 files changed, 48 insertions, 18 deletions
diff --git a/drivers/hid/hid-cougar.c b/drivers/hid/hid-cougar.c index ad2e87de7dc5..3f0916b64c60 100644 --- a/drivers/hid/hid-cougar.c +++ b/drivers/hid/hid-cougar.c @@ -7,6 +7,7 @@ #include <linux/hid.h> #include <linux/module.h> +#include <linux/printk.h> #include "hid-ids.h" @@ -15,11 +16,9 @@ MODULE_DESCRIPTION("Cougar 500k Gaming Keyboard"); MODULE_LICENSE("GPL"); MODULE_INFO(key_mappings, "G1-G6 are mapped to F13-F18"); -static int cougar_g6_is_space = 1; -module_param_named(g6_is_space, cougar_g6_is_space, int, 0600); +static bool g6_is_space = true; MODULE_PARM_DESC(g6_is_space, - "If set, G6 programmable key sends SPACE instead of F18 (0=off, 1=on) (default=1)"); - + "If true, G6 programmable key sends SPACE instead of F18 (default=true)"); #define COUGAR_VENDOR_USAGE 0xff00ff00 @@ -82,20 +81,23 @@ struct cougar { static LIST_HEAD(cougar_udev_list); static DEFINE_MUTEX(cougar_udev_list_lock); -static void cougar_fix_g6_mapping(struct hid_device *hdev) +/** + * cougar_fix_g6_mapping - configure the mapping for key G6/Spacebar + */ +static void cougar_fix_g6_mapping(void) { int i; for (i = 0; cougar_mapping[i][0]; i++) { if (cougar_mapping[i][0] == COUGAR_KEY_G6) { cougar_mapping[i][1] = - cougar_g6_is_space ? KEY_SPACE : KEY_F18; - hid_info(hdev, "G6 mapped to %s\n", - cougar_g6_is_space ? "space" : "F18"); + g6_is_space ? KEY_SPACE : KEY_F18; + pr_info("cougar: G6 mapped to %s\n", + g6_is_space ? "space" : "F18"); return; } } - hid_warn(hdev, "no mapping defined for G6/spacebar"); + pr_warn("cougar: no mappings defined for G6/spacebar"); } /* @@ -154,7 +156,8 @@ static void cougar_remove_shared_data(void *resource) * Bind the device group's shared data to this cougar struct. * If no shared data exists for this group, create and initialize it. */ -static int cougar_bind_shared_data(struct hid_device *hdev, struct cougar *cougar) +static int cougar_bind_shared_data(struct hid_device *hdev, + struct cougar *cougar) { struct cougar_shared *shared; int error = 0; @@ -228,7 +231,6 @@ static int cougar_probe(struct hid_device *hdev, * to it. */ if (hdev->collection->usage == HID_GD_KEYBOARD) { - cougar_fix_g6_mapping(hdev); list_for_each_entry_safe(hidinput, next, &hdev->inputs, list) { if (hidinput->registered && hidinput->input != NULL) { cougar->shared->input = hidinput->input; @@ -237,6 +239,8 @@ static int cougar_probe(struct hid_device *hdev, } } } else if (hdev->collection->usage == COUGAR_VENDOR_USAGE) { + /* Preinit the mapping table */ + cougar_fix_g6_mapping(); error = hid_hw_open(hdev); if (error) goto fail_stop_and_cleanup; @@ -257,26 +261,32 @@ static int cougar_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) { struct cougar *cougar; + struct cougar_shared *shared; unsigned char code, action; int i; cougar = hid_get_drvdata(hdev); - if (!cougar->special_intf || !cougar->shared || - !cougar->shared->input || !cougar->shared->enabled) + shared = cougar->shared; + if (!cougar->special_intf || !shared) return 0; + if (!shared->enabled || !shared->input) + return -EPERM; + code = data[COUGAR_FIELD_CODE]; action = data[COUGAR_FIELD_ACTION]; for (i = 0; cougar_mapping[i][0]; i++) { if (code == cougar_mapping[i][0]) { - input_event(cougar->shared->input, EV_KEY, + input_event(shared->input, EV_KEY, cougar_mapping[i][1], action); - input_sync(cougar->shared->input); - return 0; + input_sync(shared->input); + return -EPERM; } } - hid_warn(hdev, "unmapped special key code %x: ignoring\n", code); - return 0; + /* Avoid warnings on the same unmapped key twice */ + if (action != 0) + hid_warn(hdev, "unmapped special key code %0x: ignoring\n", code); + return -EPERM; } static void cougar_remove(struct hid_device *hdev) @@ -293,6 +303,26 @@ static void cougar_remove(struct hid_device *hdev) hid_hw_stop(hdev); } +static int cougar_param_set_g6_is_space(const char *val, + const struct kernel_param *kp) +{ + int ret; + + ret = param_set_bool(val, kp); + if (ret) + return ret; + + cougar_fix_g6_mapping(); + + return 0; +} + +static const struct kernel_param_ops cougar_g6_is_space_ops = { + .set = cougar_param_set_g6_is_space, + .get = param_get_bool, +}; +module_param_cb(g6_is_space, &cougar_g6_is_space_ops, &g6_is_space, 0644); + static struct hid_device_id cougar_id_table[] = { { HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR, USB_DEVICE_ID_COUGAR_500K_GAMING_KEYBOARD) }, |