Input: keyspan_remote - add support for loadable keymaps

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 67 insertions, 51 deletions

diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c
index fd74347047dd..86ddd72dbe3d 100644
--- a/drivers/input/misc/keyspan_remote.c
+++ b/drivers/input/misc/keyspan_remote.c
@@ -46,53 +46,12 @@ MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
 
 #define RECV_SIZE       8       /* The UIA-11 type have a 8 byte limit. */
 
-/* table of devices that work with this driver */
-static struct usb_device_id keyspan_table[] = {
-        { USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
-        { }                                     /* Terminating entry */
-};
-
-/* Structure to store all the real stuff that a remote sends to us. */
-struct keyspan_message {
-        u16     system;
-        u8      button;
-        u8      toggle;
-};
-
-/* Structure used for all the bit testing magic needed to be done. */
-struct bit_tester {
-        u32     tester;
-        int     len;
-        int     pos;
-        int     bits_left;
-        u8      buffer[32];
-};
-
-/* Structure to hold all of our driver specific stuff */
-struct usb_keyspan {
-        char                            name[128];
-        char                            phys[64];
-        struct usb_device*              udev;
-        struct input_dev                *input;
-        struct usb_interface*           interface;
-        struct usb_endpoint_descriptor* in_endpoint;
-        struct urb*                     irq_urb;
-        int                             open;
-        dma_addr_t                      in_dma;
-        unsigned char*                  in_buffer;
-
-        /* variables used to parse messages from remote. */
-        struct bit_tester               data;
-        int                             stage;
-        int                             toggle;
-};
-
 /*
  * Table that maps the 31 possible keycodes to input keys.
  * Currently there are 15 and 17 button models so RESERVED codes
  * are blank areas in the mapping.
  */
-static const int keyspan_key_table[] = {
+static const unsigned short keyspan_key_table[] = {
         KEY_RESERVED,           /* 0 is just a place holder. */
         KEY_RESERVED,
         KEY_STOP,
@@ -127,6 +86,48 @@ static const int keyspan_key_table[] = {
         KEY_MENU
 };
 
+/* table of devices that work with this driver */
+static struct usb_device_id keyspan_table[] = {
+        { USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
+        { }                                     /* Terminating entry */
+};
+
+/* Structure to store all the real stuff that a remote sends to us. */
+struct keyspan_message {
+        u16     system;
+        u8      button;
+        u8      toggle;
+};
+
+/* Structure used for all the bit testing magic needed to be done. */
+struct bit_tester {
+        u32     tester;
+        int     len;
+        int     pos;
+        int     bits_left;
+        u8      buffer[32];
+};
+
+/* Structure to hold all of our driver specific stuff */
+struct usb_keyspan {
+        char                            name[128];
+        char                            phys[64];
+        unsigned short                  keymap[ARRAY_SIZE(keyspan_key_table)];
+        struct usb_device               *udev;
+        struct input_dev                *input;
+        struct usb_interface            *interface;
+        struct usb_endpoint_descriptor  *in_endpoint;
+        struct urb*                     irq_urb;
+        int                             open;
+        dma_addr_t                      in_dma;
+        unsigned char                   *in_buffer;
+
+        /* variables used to parse messages from remote. */
+        struct bit_tester               data;
+        int                             stage;
+        int                             toggle;
+};
+
 static struct usb_driver keyspan_driver;
 
 /*
@@ -173,6 +174,15 @@ static int keyspan_load_tester(struct usb_keyspan* dev, int bits_needed)
         return 0;
 }
 
+static void keyspan_report_button(struct usb_keyspan *remote, int button, int press)
+{
+        struct input_dev *input = remote->input;
+
+        input_event(input, EV_MSC, MSC_SCAN, button);
+        input_report_key(input, remote->keymap[button], press);
+        input_sync(input);
+}
+
 /*
  * Routine that handles all the logic needed to parse out the message from the remote.
  */
@@ -311,9 +321,8 @@ static void keyspan_check_data(struct usb_keyspan *remote)
                         __FUNCTION__, message.system, message.button, message.toggle);
 
                 if (message.toggle != remote->toggle) {
-                        input_report_key(remote->input, keyspan_key_table[message.button], 1);
-                        input_report_key(remote->input, keyspan_key_table[message.button], 0);
-                        input_sync(remote->input);
+                        keyspan_report_button(remote, message.button, 1);
+                        keyspan_report_button(remote, message.button, 0);
                         remote->toggle = message.toggle;
                 }
 
@@ -491,16 +500,21 @@ static int keyspan_probe(struct usb_interface *interface, const struct usb_devic
 
         usb_make_path(udev, remote->phys, sizeof(remote->phys));
         strlcat(remote->phys, "/input0", sizeof(remote->phys));
+        memcpy(remote->keymap, keyspan_key_table, sizeof(remote->keymap));
 
         input_dev->name = remote->name;
         input_dev->phys = remote->phys;
         usb_to_input_id(udev, &input_dev->id);
         input_dev->dev.parent = &interface->dev;
+        input_dev->keycode = remote->keymap;
+        input_dev->keycodesize = sizeof(unsigned short);
+        input_dev->keycodemax = ARRAY_SIZE(remote->keymap);
 
-        input_dev->evbit[0] = BIT_MASK(EV_KEY);         /* We will only report KEY events. */
+        input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+        __set_bit(EV_KEY, input_dev->evbit);
         for (i = 0; i < ARRAY_SIZE(keyspan_key_table); i++)
-                if (keyspan_key_table[i] != KEY_RESERVED)
-                        set_bit(keyspan_key_table[i], input_dev->keybit);
+                __set_bit(keyspan_key_table[i], input_dev->keybit);
+        __clear_bit(KEY_RESERVED, input_dev->keybit);
 
         input_set_drvdata(input_dev, remote);
 
@@ -508,12 +522,14 @@ static int keyspan_probe(struct usb_interface *interface, const struct usb_devic
         input_dev->close = keyspan_close;
 
         /*
-         * Initialize the URB to access the device. The urb gets sent to the device in keyspan_open()
+         * Initialize the URB to access the device.
+         * The urb gets sent to the device in keyspan_open()
          */
         usb_fill_int_urb(remote->irq_urb,
-                         remote->udev, usb_rcvintpipe(remote->udev, remote->in_endpoint->bEndpointAddress),
+                         remote->udev,
+                         usb_rcvintpipe(remote->udev, endpoint->bEndpointAddress),
                          remote->in_buffer, RECV_SIZE, keyspan_irq_recv, remote,
-                         remote->in_endpoint->bInterval);
+                         endpoint->bInterval);
         remote->irq_urb->transfer_dma = remote->in_dma;
         remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;