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HID: magicmouse: Use hid-input parsing rather than bypassing it

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Let the HID core handle input device setup and HID-compliant reports.
This driver then only has to worry about the non-standard reports.

Signed-off-by: Michael Poole <mdpoole@troilus.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Michael Poole 2010-09-24 13:58:18 +02:00 committed by Jiri Kosina
parent a462230e16
commit 64eb105d7f
1 changed files with 18 additions and 63 deletions
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81
drivers/hid/hid-magicmouse.c
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@ -279,13 +279,6 @@ static int magicmouse_raw_event(struct hid_device *hdev,
int x = 0, y = 0, ii, clicks = 0, npoints;
switch (data[0]) {
case 0x10:
if (size != 6)
return 0;
x = (__s16)(data[2] | data[3] << 8);
y = (__s16)(data[4] | data[5] << 8);
clicks = data[1];
break;
case TRACKPAD_REPORT_ID:
/* Expect four bytes of prefix, and N*9 bytes of touch data. */
if (size < 4 || ((size - 4) % 9) != 0)
@ -343,13 +336,6 @@ static int magicmouse_raw_event(struct hid_device *hdev,
magicmouse_raw_event(hdev, report, data + 2 + data[1],
size - 2 - data[1]);
break;
case 0x20: /* Theoretically battery status (0-100), but I have
* never seen it -- maybe it is only upon request.
*/
case 0x60: /* Unknown, maybe laser on/off. */
case 0x61: /* Laser reflection status change.
* data[1]: 0 = spotted, 1 = lost
*/
default:
return 0;
}
@ -377,36 +363,8 @@ static int magicmouse_raw_event(struct hid_device *hdev,
return 1;
}
static int magicmouse_input_open(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
return hid->ll_driver->open(hid);
}
static void magicmouse_input_close(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
hid->ll_driver->close(hid);
}
static void magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
{
input_set_drvdata(input, hdev);
input->event = hdev->ll_driver->hidinput_input_event;
input->open = magicmouse_input_open;
input->close = magicmouse_input_close;
input->name = hdev->name;
input->phys = hdev->phys;
input->uniq = hdev->uniq;
input->id.bustype = hdev->bus;
input->id.vendor = hdev->vendor;
input->id.product = hdev->product;
input->id.version = hdev->version;
input->dev.parent = hdev->dev.parent;
__set_bit(EV_KEY, input->evbit);
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
@ -466,11 +424,22 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h
}
}
static int magicmouse_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
if (!msc->input)
msc->input = hi->input;
return 0;
}
static int magicmouse_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
__u8 feature[] = { 0xd7, 0x01 };
struct input_dev *input;
struct magicmouse_sc *msc;
struct hid_report *report;
int ret;
@ -500,8 +469,11 @@ static int magicmouse_probe(struct hid_device *hdev,
goto err_free;
}
/* we are handling the input ourselves */
hidinput_disconnect(hdev);
/* We do this after hid-input is done parsing reports so that
* hid-input uses the most natural button and axis IDs.
*/
if (msc->input)
magicmouse_setup_input(msc->input, hdev);
if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
@ -528,24 +500,7 @@ static int magicmouse_probe(struct hid_device *hdev,
goto err_stop_hw;
}
input = input_allocate_device();
if (!input) {
dev_err(&hdev->dev, "can't alloc input device\n");
ret = -ENOMEM;
goto err_stop_hw;
}
magicmouse_setup_input(input, hdev);
ret = input_register_device(input);
if (ret) {
dev_err(&hdev->dev, "input device registration failed\n");
goto err_input;
}
msc->input = input;
return 0;
err_input:
input_free_device(input);
err_stop_hw:
hid_hw_stop(hdev);
err_free:
@ -558,7 +513,6 @@ static void magicmouse_remove(struct hid_device *hdev)
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
hid_hw_stop(hdev);
input_unregister_device(msc->input);
kfree(msc);
}
@ -577,6 +531,7 @@ static struct hid_driver magicmouse_driver = {
.probe = magicmouse_probe,
.remove = magicmouse_remove,
.raw_event = magicmouse_raw_event,
.input_mapping = magicmouse_input_mapping,
};
static int __init magicmouse_init(void)