On Tue, May 06, 2003 at 09:34:44PM -0400, Ben Collins wrote:
> On Tue, May 06, 2003 at 04:45:15PM -0700, Greg KH wrote:
> > On Mon, May 05, 2003 at 08:22:33PM -0400, Ben Collins wrote:
> > >
> > > Obviously that doesn't work right. I'm not sure what the correct thing
> > > to do is, so my patch for this is only RFC status. With this patch my
> > > mouse and keyboard still work, and the joysticks work correctly. Maybe
> > > the correct thing is to map the physical values read from the device to
> > > the logical values.
> >
> > Your patch looks sane at first glance, but Vojtech needs to verify that
> > this is ok before I can apply it.
>
> Well then, here's a 2.5 patch to go along with it. This is just the
> multi-input part of the patch. I'm going to look at the other range
> patch in more depth.
>
> This one is a no-brainer really. Vojtech, how about it?
Why do we want a new input device registered for each report? This
doesn't make much sense to me - there are many devices (tablets, etc),
which send their information using more than a single report.
> --
> Debian - http://www.debian.org/
> Linux 1394 - http://www.linux1394.org/
> Subversion - http://subversion.tigris.org/
> Deqo - http://www.deqo.com/
> Index: drivers/usb/input/hid-input.c
> ===================================================================
> RCS file: /home/scm/linux-2.5/drivers/usb/input/hid-input.c,v
> retrieving revision 1.11
> diff -u -u -r1.11 hid-input.c
> --- drivers/usb/input/hid-input.c 17 Mar 2003 18:43:39 -0000 1.11
> +++ drivers/usb/input/hid-input.c 7 May 2003 01:58:52 -0000
> @@ -60,9 +60,29 @@
> __s32 y;
> } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
>
> -static void hidinput_configure_usage(struct hid_device *device, struct hid_field *field, struct hid_usage *usage)
> +static struct input_dev *find_input(struct hid_device *hid, struct hid_field *field)
> {
> - struct input_dev *input = &device->input;
> + struct list_head *lh;
> + struct hid_input *hidinput;
> +
> + list_for_each (lh, &hid->inputs) {
> + int i;
> +
> + hidinput = list_entry(lh, struct hid_input, list);
> +
> + for (i = 0; i < hidinput->maxfield; i++)
> + if (hidinput->fields[i] == field)
> + return &hidinput->input;
> + }
> +
> + return NULL;
> +}
> +
> +static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
> + struct hid_usage *usage)
> +{
> + struct input_dev *input = &hidinput->input;
> + struct hid_device *device = hidinput->input.private;
> int max;
> int is_abs = 0;
> unsigned long *bit;
> @@ -387,9 +407,12 @@
>
> void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs)
> {
> - struct input_dev *input = &hid->input;
> + struct input_dev *input = find_input(hid, field);
> int *quirks = &hid->quirks;
>
> + if (!input)
> + return;
> +
> input_regs(input, regs);
>
> if (usage->hat_min != usage->hat_max) {
> @@ -442,7 +465,13 @@
>
> void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
> {
> - input_sync(&hid->input);
> + struct list_head *lh;
> + struct hid_input *hidinput;
> +
> + list_for_each (lh, &hid->inputs) {
> + hidinput = list_entry(lh, struct hid_input, list);
> + input_sync(&hidinput->input);
> + }
> }
>
> static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
> @@ -489,7 +518,7 @@
> struct hid_report_enum *report_enum;
> struct hid_report *report;
> struct list_head *list;
> - int i, j, k;
> + int i, j;
>
> for (i = 0; i < hid->maxcollection; i++)
> if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
> @@ -499,37 +528,63 @@
> if (i == hid->maxcollection)
> return -1;
>
> - hid->input.private = hid;
> - hid->input.event = hidinput_input_event;
> - hid->input.open = hidinput_open;
> - hid->input.close = hidinput_close;
> -
> - hid->input.name = hid->name;
> - hid->input.phys = hid->phys;
> - hid->input.uniq = hid->uniq;
> - hid->input.id.bustype = BUS_USB;
> - hid->input.id.vendor = dev->descriptor.idVendor;
> - hid->input.id.product = dev->descriptor.idProduct;
> - hid->input.id.version = dev->descriptor.bcdDevice;
> -
> - for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
> - report_enum = hid->report_enum + k;
> - list = report_enum->report_list.next;
> - while (list != &report_enum->report_list) {
> - report = (struct hid_report *) list;
> - for (i = 0; i < report->maxfield; i++)
> - for (j = 0; j < report->field[i]->maxusage; j++)
> - hidinput_configure_usage(hid, report->field[i], report->field[i]->usage + j);
> - list = list->next;
> + report_enum = hid->report_enum + HID_INPUT_REPORT;
> + list = report_enum->report_list.next;
> + while (list != &report_enum->report_list) {
> + struct hid_input *hidinput;
> +
> + report = (struct hid_report *) list;
> +
> + if (!report->maxfield)
> + continue;
> +
> + hidinput = kmalloc(sizeof(*hidinput), GFP_KERNEL);
> + if (!hidinput) {
> + err("Out of memory during hid input probe");
> + return -1;
> }
> - }
>
> - input_register_device(&hid->input);
> + memset(hidinput, 0, sizeof(*hidinput));
> +
> + hidinput->input.private = hid;
> + hidinput->input.event = hidinput_input_event;
> + hidinput->input.open = hidinput_open;
> + hidinput->input.close = hidinput_close;
> +
> + hidinput->input.name = hid->name;
> + hidinput->input.phys = hid->phys;
> + hidinput->input.uniq = hid->uniq;
> + hidinput->input.id.bustype = BUS_USB;
> + hidinput->input.id.vendor = dev->descriptor.idVendor;
> + hidinput->input.id.product = dev->descriptor.idProduct;
> + hidinput->input.id.version = dev->descriptor.bcdDevice;
> +
> + hidinput->fields = report->field;
> + hidinput->maxfield = report->maxfield;
> +
> + for (i = 0; i < report->maxfield; i++)
> + for (j = 0; j < report->field[i]->maxusage; j++)
> + hidinput_configure_usage(hidinput, report->field[i],
> + report->field[i]->usage + j);
> +
> + list_add_tail(&hidinput->list, &hid->inputs);
> +
> + input_register_device(&hidinput->input);
> +
> + list = list->next;
> + }
>
> return 0;
> }
>
> void hidinput_disconnect(struct hid_device *hid)
> {
> - input_unregister_device(&hid->input);
> + struct list_head *lh, *next;
> + struct hid_input *hidinput;
> +
> + list_for_each_safe (lh, next, &hid->inputs) {
> + hidinput = list_entry(lh, struct hid_input, list);
> + input_unregister_device(&hidinput->input);
> + list_del(&hidinput->list);
> + }
> }
> Index: drivers/usb/input/hid.h
> ===================================================================
> RCS file: /home/scm/linux-2.5/drivers/usb/input/hid.h,v
> retrieving revision 1.11
> diff -u -u -r1.11 hid.h
> --- drivers/usb/input/hid.h 17 Mar 2003 18:43:39 -0000 1.11
> +++ drivers/usb/input/hid.h 7 May 2003 01:58:52 -0000
> @@ -321,6 +321,13 @@
> #define HID_CTRL_RUNNING 1
> #define HID_OUT_RUNNING 2
>
> +struct hid_input {
> + struct list_head list;
> + struct hid_field **fields;
> + int maxfield;
> + struct input_dev input;
> +};
> +
> struct hid_device { /* device report descriptor */
> __u8 *rdesc;
> unsigned rsize;
> @@ -360,7 +367,7 @@
> unsigned claimed; /* Claimed by hidinput, hiddev? */
> unsigned quirks; /* Various quirks the device can pull on us */
>
> - struct input_dev input; /* The input structure */
> + struct list_head inputs; /* The list of inputs */
> void *hiddev; /* The hiddev structure */
> int minor; /* Hiddev minor number */
>
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed May 07 2003 - 22:00:30 EST