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Input: keyspan_remote - add support for loadable keymaps 

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
hifive-unleashed-5.1
Dmitry Torokhov 2007-11-04 00:41:24 -04:00
parent f4f37c8ec7
commit 1953ea2d8d
1 changed files with 67 additions and 51 deletions
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118
drivers/input/misc/keyspan_remote.c
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@ -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;