* GNU General Public License for more details.
*/
-#include <linux/usb/input.h>
+#include <linux/input.h>
+#include <linux/slab.h>
#include <media/ir-common.h>
#define IR_TAB_MIN_SIZE 32
* In order to reduce the quantity of table resizes, it has a minimum
* table size of IR_TAB_MIN_SIZE.
*/
-int ir_roundup_tablesize(int n_elems)
+static int ir_roundup_tablesize(int n_elems)
{
size_t size;
return n_elems;
}
-EXPORT_SYMBOL_GPL(ir_roundup_tablesize);
/**
* ir_copy_table() - copies a keytable, discarding the unused entries
* @origin: origin table
*
* Copies all entries where the keycode is not KEY_UNKNOWN/KEY_RESERVED
+ * Also copies table size and table protocol.
+ * NOTE: It shouldn't copy the lock field
*/
-int ir_copy_table(struct ir_scancode_table *destin,
+static int ir_copy_table(struct ir_scancode_table *destin,
const struct ir_scancode_table *origin)
{
int i, j = 0;
j++;
}
destin->size = j;
+ destin->ir_type = origin->ir_type;
IR_dprintk(1, "Copied %d scancodes to the new keycode table\n", destin->size);
return 0;
}
-EXPORT_SYMBOL_GPL(ir_copy_table);
/**
* ir_getkeycode() - get a keycode at the evdev scancode ->keycode table
* If the key is not found, returns -EINVAL, otherwise, returns 0.
*/
static int ir_getkeycode(struct input_dev *dev,
- int scancode, int *keycode)
+ unsigned int scancode, unsigned int *keycode)
{
int elem;
struct ir_input_dev *ir_dev = input_get_drvdata(dev);
int newsize = rc_tab->size - 1;
int resize = ir_is_resize_needed(rc_tab, newsize);
struct ir_scancode *oldkeymap = rc_tab->scan;
- struct ir_scancode *newkeymap;
+ struct ir_scancode *newkeymap = NULL;
- if (resize) {
+ if (resize)
newkeymap = kzalloc(ir_roundup_tablesize(newsize) *
sizeof(*newkeymap), GFP_ATOMIC);
- /* There's no memory for resize. Keep the old table */
- if (!newkeymap)
- resize = 0;
- }
-
- if (!resize) {
+ /* There's no memory for resize. Keep the old table */
+ if (!resize || !newkeymap) {
newkeymap = oldkeymap;
/* We'll modify the live table. Lock it */
* If the key is not found, returns -EINVAL, otherwise, returns 0.
*/
static int ir_setkeycode(struct input_dev *dev,
- int scancode, int keycode)
+ unsigned int scancode, unsigned int keycode)
{
int rc = 0;
struct ir_input_dev *ir_dev = input_get_drvdata(dev);
*
* This routine is used by the input routines when a key is pressed at the
* IR. The scancode is received and needs to be converted into a keycode.
- * If the key is not found, it returns KEY_UNKNOWN. Otherwise, returns the
+ * If the key is not found, it returns KEY_RESERVED. Otherwise, returns the
* corresponding keycode from the table.
*/
u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode)
EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
/**
+ * ir_keyup() - generates input event to cleanup a key press
+ * @input_dev: the struct input_dev descriptor of the device
+ *
+ * This routine is used by the input routines when a key is pressed at the
+ * IR. It reports a keyup input event via input_report_key().
+ */
+void ir_keyup(struct input_dev *dev)
+{
+ struct ir_input_dev *ir = input_get_drvdata(dev);
+
+ if (!ir->keypressed)
+ return;
+
+ input_report_key(dev, ir->keycode, 0);
+ input_sync(dev);
+ ir->keypressed = 0;
+}
+EXPORT_SYMBOL_GPL(ir_keyup);
+
+/**
+ * ir_keydown() - generates input event for a key press
+ * @input_dev: the struct input_dev descriptor of the device
+ * @scancode: the scancode that we're seeking
+ *
+ * This routine is used by the input routines when a key is pressed at the
+ * IR. It gets the keycode for a scancode and reports an input event via
+ * input_report_key().
+ */
+void ir_keydown(struct input_dev *dev, int scancode)
+{
+ struct ir_input_dev *ir = input_get_drvdata(dev);
+
+ u32 keycode = ir_g_keycode_from_table(dev, scancode);
+
+ /* If already sent a keydown, do a keyup */
+ if (ir->keypressed)
+ ir_keyup(dev);
+
+ if (KEY_RESERVED == keycode)
+ return;
+
+ ir->keycode = keycode;
+ ir->keypressed = 1;
+
+ IR_dprintk(1, "%s: key down event, key 0x%04x, scancode 0x%04x\n",
+ dev->name, keycode, scancode);
+
+ input_report_key(dev, ir->keycode, 1);
+ input_sync(dev);
+
+}
+EXPORT_SYMBOL_GPL(ir_keydown);
+
+
+/**
* ir_input_register() - sets the IR keycode table and add the handlers
* for keymap table get/set
* @input_dev: the struct input_dev descriptor of the device
* @rc_tab: the struct ir_scancode_table table of scancode/keymap
*
- * This routine is used to initialize the input infrastructure to work with
- * an IR.
- * It should be called before registering the IR device.
+ * This routine is used to initialize the input infrastructure
+ * to work with an IR.
+ * It will register the input/evdev interface for the device and
+ * register the syfs code for IR class
*/
int ir_input_register(struct input_dev *input_dev,
- struct ir_scancode_table *rc_tab)
+ const struct ir_scancode_table *rc_tab,
+ const struct ir_dev_props *props,
+ const char *driver_name)
{
struct ir_input_dev *ir_dev;
struct ir_scancode *keymap = rc_tab->scan;
- int i;
+ int i, rc;
if (rc_tab->scan == NULL || !rc_tab->size)
return -EINVAL;
if (!ir_dev)
return -ENOMEM;
- spin_lock_init(&rc_tab->lock);
+ spin_lock_init(&ir_dev->rc_tab.lock);
+ ir_dev->driver_name = kmalloc(strlen(driver_name) + 1, GFP_KERNEL);
+ if (!ir_dev->driver_name)
+ return -ENOMEM;
+ strcpy(ir_dev->driver_name, driver_name);
+ ir_dev->rc_tab.name = rc_tab->name;
ir_dev->rc_tab.size = ir_roundup_tablesize(rc_tab->size);
ir_dev->rc_tab.scan = kzalloc(ir_dev->rc_tab.size *
sizeof(struct ir_scancode), GFP_KERNEL);
- if (!ir_dev->rc_tab.scan)
+ if (!ir_dev->rc_tab.scan) {
+ kfree(ir_dev);
return -ENOMEM;
+ }
IR_dprintk(1, "Allocated space for %d keycode entries (%zd bytes)\n",
ir_dev->rc_tab.size,
ir_dev->rc_tab.size * sizeof(ir_dev->rc_tab.scan));
ir_copy_table(&ir_dev->rc_tab, rc_tab);
+ ir_dev->props = props;
/* set the bits for the keys */
IR_dprintk(1, "key map size: %d\n", rc_tab->size);
input_dev->setkeycode = ir_setkeycode;
input_set_drvdata(input_dev, ir_dev);
+ rc = ir_register_class(input_dev);
+ if (rc < 0)
+ goto err;
+
return 0;
+
+err:
+ kfree(rc_tab->scan);
+ kfree(ir_dev);
+ return rc;
}
EXPORT_SYMBOL_GPL(ir_input_register);
-void ir_input_free(struct input_dev *dev)
+/**
+ * ir_input_unregister() - unregisters IR and frees resources
+ * @input_dev: the struct input_dev descriptor of the device
+
+ * This routine is used to free memory and de-register interfaces.
+ */
+void ir_input_unregister(struct input_dev *dev)
{
struct ir_input_dev *ir_dev = input_get_drvdata(dev);
- struct ir_scancode_table *rc_tab = &ir_dev->rc_tab;
+ struct ir_scancode_table *rc_tab;
- if (!rc_tab)
+ if (!ir_dev)
return;
IR_dprintk(1, "Freed keycode table\n");
+ rc_tab = &ir_dev->rc_tab;
rc_tab->size = 0;
kfree(rc_tab->scan);
rc_tab->scan = NULL;
+ ir_unregister_class(dev);
+
kfree(ir_dev);
- input_set_drvdata(dev, NULL);
}
-EXPORT_SYMBOL_GPL(ir_input_free);
+EXPORT_SYMBOL_GPL(ir_input_unregister);
int ir_core_debug; /* ir_debug level (0,1,2) */
EXPORT_SYMBOL_GPL(ir_core_debug);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff