static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
				  unsigned int code, int value)
{
	/* Sent by the input layer to handle leds and Force Feedback */
	struct hid_device *dj_hiddev = input_get_drvdata(dev);
	struct dj_device *dj_dev = dj_hiddev->driver_data;

	struct dj_receiver_dev *djrcv_dev =
	    dev_get_drvdata(dj_hiddev->dev.parent);
	struct hid_device *dj_rcv_hiddev = djrcv_dev->hdev;
	struct hid_report_enum *output_report_enum;

	struct hid_field *field;
	struct hid_report *report;
	unsigned char *data;
	int offset;

	dbg_hid("%s: %s, type:%d | code:%d | value:%d\n",
		__func__, dev->phys, type, code, value);

	if (type != EV_LED)
		return -1;

	offset = hidinput_find_field(dj_hiddev, type, code, &field);

	if (offset == -1) {
		dev_warn(&dev->dev, "event field not found\n");
		return -1;
	}
	hid_set_field(field, offset, value);

	data = hid_alloc_report_buf(field->report, GFP_KERNEL);
	if (!data) {
		dev_warn(&dev->dev, "failed to allocate report buf memory\n");
		return -1;
	}

	hid_output_report(field->report, &data[0]);

	output_report_enum = &dj_rcv_hiddev->report_enum[HID_OUTPUT_REPORT];
	report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
	hid_set_field(report->field[0], 0, dj_dev->device_index);
	hid_set_field(report->field[0], 1, REPORT_TYPE_LEDS);
	hid_set_field(report->field[0], 2, data[1]);

	hid_hw_request(dj_rcv_hiddev, report, HID_REQ_SET_REPORT);

	kfree(data);

	return 0;
}
Exemple #2
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static int hid_pid_erase(struct input_dev *dev, int id)
{
	struct hid_device *hid = dev->private;
	struct hid_ff_pid *pid = hid->ff_private;
	struct hid_field *field;
	unsigned long flags;
	int ret;

	if (!CHECK_OWNERSHIP(id, pid))
		return -EACCES;

	/* Find report */
	field = hid_find_field_by_usage(hid, HID_UP_PID | FF_PID_USAGE_BLOCK_FREE,
					HID_OUTPUT_REPORT);
	if (!field) {
		dev_err(&hid->dev->dev, "couldn't find report\n");
		return -EIO;
	}

	ret = hid_set_field(field, 0, pid->effects[id].device_id);
	if (ret) {
		dev_err(&hid->dev->dev, "couldn't set field\n");
		return ret;
	}

	hid_submit_report(hid, field->report, USB_DIR_OUT);

	spin_lock_irqsave(&pid->lock, flags);
	hid_pid_ctrl_playback(hid, pid->effects + id, 0);
	pid->effects[id].flags = 0;
	spin_unlock_irqrestore(&pid->lock, flags);

	return 0;
}
Exemple #3
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static ssize_t picolcd_operation_mode_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct picolcd_data *data = dev_get_drvdata(dev);
	struct hid_report *report = NULL;
	size_t cnt = count;
	int timeout = data->opmode_delay;
	unsigned long flags;

	if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) {
		if (data->status & PICOLCD_BOOTLOADER)
			report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
		buf += 3;
		cnt -= 3;
	} else if (cnt >= 10 && strncmp("bootloader", buf, 10) == 0) {
		if (!(data->status & PICOLCD_BOOTLOADER))
			report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
		buf += 10;
		cnt -= 10;
	}
	if (!report)
		return -EINVAL;

	while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
		cnt--;
	if (cnt != 0)
		return -EINVAL;

	spin_lock_irqsave(&data->lock, flags);
	hid_set_field(report->field[0], 0, timeout & 0xff);
	hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
	hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
	spin_unlock_irqrestore(&data->lock, flags);
	return count;
}
Exemple #4
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/*
 * Reset our device and wait for answer to VERSION request
 */
int picolcd_reset(struct hid_device *hdev)
{
	struct picolcd_data *data = hid_get_drvdata(hdev);
	struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
	unsigned long flags;
	int error;

	if (!data || !report || report->maxfield != 1)
		return -ENODEV;

	spin_lock_irqsave(&data->lock, flags);
	if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
		data->status |= PICOLCD_BOOTLOADER;

	/* perform the reset */
	hid_set_field(report->field[0], 0, 1);
	if (data->status & PICOLCD_FAILED) {
		spin_unlock_irqrestore(&data->lock, flags);
		return -ENODEV;
	}
	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
	spin_unlock_irqrestore(&data->lock, flags);

	error = picolcd_check_version(hdev);
	if (error)
		return error;

	picolcd_resume_lcd(data);
	picolcd_resume_backlight(data);
	picolcd_fb_refresh(data);
	picolcd_leds_set(data);
	return 0;
}
static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
				  unsigned int code, int value)
{
	
	struct hid_device *dj_hiddev = input_get_drvdata(dev);
	struct dj_device *dj_dev = dj_hiddev->driver_data;

	struct dj_receiver_dev *djrcv_dev =
	    dev_get_drvdata(dj_hiddev->dev.parent);
	struct hid_device *dj_rcv_hiddev = djrcv_dev->hdev;
	struct hid_report_enum *output_report_enum;

	struct hid_field *field;
	struct hid_report *report;
	unsigned char data[8];
	int offset;

	dbg_hid("%s: %s, type:%d | code:%d | value:%d\n",
		__func__, dev->phys, type, code, value);

	if (type != EV_LED)
		return -1;

	offset = hidinput_find_field(dj_hiddev, type, code, &field);

	if (offset == -1) {
		dev_warn(&dev->dev, "event field not found\n");
		return -1;
	}
	hid_set_field(field, offset, value);
	hid_output_report(field->report, &data[0]);

	output_report_enum = &dj_rcv_hiddev->report_enum[HID_OUTPUT_REPORT];
	report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
	hid_set_field(report->field[0], 0, dj_dev->device_index);
	hid_set_field(report->field[0], 1, REPORT_TYPE_LEDS);
	hid_set_field(report->field[0], 2, data[1]);

	usbhid_submit_report(dj_rcv_hiddev, report, USB_DIR_OUT);

	return 0;

}
static int uhid_hid_input(struct input_dev *input, unsigned int type,
			  unsigned int code, int value)
{
	struct hid_device *hid = input_get_drvdata(input);
	struct uhid_device *uhid = hid->driver_data;
	unsigned long flags;
	struct uhid_event *ev;
	struct hid_field *field;
	struct hid_report *report;
	int offset;

	ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
	if (!ev)
		return -ENOMEM;

	switch (type) {
	case EV_LED:
		offset = hidinput_find_field(hid, type, code, &field);
		if (offset == -1) {
			hid_warn(input, "event field not found\n");
			kfree(ev);
			return -1;
		}

		hid_set_field(field, offset, value);

		report = field->report;

		ev->type = UHID_OUTPUT;
		ev->u.output.rtype = UHID_OUTPUT_REPORT;
		hid_output_report(report, ev->u.output.data);
		ev->u.output.size = ((report->size - 1) >> 3) + 1 +
							(report->id > 0);
		break;

	default:
	ev->type = UHID_OUTPUT_EV;
	ev->u.output_ev.type = type;
	ev->u.output_ev.code = code;
	ev->u.output_ev.value = value;
	}

	spin_lock_irqsave(&uhid->qlock, flags);
	uhid_queue(uhid, ev);
	spin_unlock_irqrestore(&uhid->qlock, flags);

	return 0;
}
Exemple #7
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static int picolcd_set_contrast(struct lcd_device *ldev, int contrast)
{
	struct picolcd_data *data = lcd_get_data(ldev);
	struct hid_report *report = picolcd_out_report(REPORT_CONTRAST, data->hdev);
	unsigned long flags;

	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
		return -ENODEV;

	data->lcd_contrast = contrast & 0x0ff;
	spin_lock_irqsave(&data->lock, flags);
	hid_set_field(report->field[0], 0, data->lcd_contrast);
	if (!(data->status & PICOLCD_FAILED))
		hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
	spin_unlock_irqrestore(&data->lock, flags);
	return 0;
}
static int picolcd_set_brightness(struct backlight_device *bdev)
{
	struct picolcd_data *data = bl_get_data(bdev);
	struct hid_report *report = picolcd_out_report(REPORT_BRIGHTNESS, data->hdev);
	unsigned long flags;

	if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
		return -ENODEV;

	data->lcd_brightness = bdev->props.brightness & 0x0ff;
	data->lcd_power      = bdev->props.power;
	spin_lock_irqsave(&data->lock, flags);
	hid_set_field(report->field[0], 0, data->lcd_power == FB_BLANK_UNBLANK ? data->lcd_brightness : 0);
	if (!(data->status & PICOLCD_FAILED))
		hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
	spin_unlock_irqrestore(&data->lock, flags);
	return 0;
}
Exemple #9
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/* Submit a report and wait for a reply from device - if device fades away
 * or does not respond in time, return NULL */
struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
		int report_id, const u8 *raw_data, int size)
{
	struct picolcd_data *data = hid_get_drvdata(hdev);
	struct picolcd_pending *work;
	struct hid_report *report = picolcd_out_report(report_id, hdev);
	unsigned long flags;
	int i, j, k;

	if (!report || !data)
		return NULL;
	if (data->status & PICOLCD_FAILED)
		return NULL;
	work = kzalloc(sizeof(*work), GFP_KERNEL);
	if (!work)
		return NULL;

	init_completion(&work->ready);
	work->out_report = report;
	work->in_report  = NULL;
	work->raw_size   = 0;

	mutex_lock(&data->mutex);
	spin_lock_irqsave(&data->lock, flags);
	for (i = k = 0; i < report->maxfield; i++)
		for (j = 0; j < report->field[i]->report_count; j++) {
			hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
			k++;
		}
	if (data->status & PICOLCD_FAILED) {
		kfree(work);
		work = NULL;
	} else {
		data->pending = work;
		hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
		spin_unlock_irqrestore(&data->lock, flags);
		wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
		spin_lock_irqsave(&data->lock, flags);
		data->pending = NULL;
	}
	spin_unlock_irqrestore(&data->lock, flags);
	mutex_unlock(&data->mutex);
	return work;
}
Exemple #10
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/* Send a given tile to PicoLCD */
static int picolcd_fb_send_tile(struct picolcd_data *data, u8 *vbitmap,
		int chip, int tile)
{
	struct hid_report *report1, *report2;
	unsigned long flags;
	u8 *tdata;
	int i;

	report1 = picolcd_out_report(REPORT_LCD_CMD_DATA, data->hdev);
	if (!report1 || report1->maxfield != 1)
		return -ENODEV;
	report2 = picolcd_out_report(REPORT_LCD_DATA, data->hdev);
	if (!report2 || report2->maxfield != 1)
		return -ENODEV;

	spin_lock_irqsave(&data->lock, flags);
	if ((data->status & PICOLCD_FAILED)) {
		spin_unlock_irqrestore(&data->lock, flags);
		return -ENODEV;
	}
	hid_set_field(report1->field[0],  0, chip << 2);
	hid_set_field(report1->field[0],  1, 0x02);
	hid_set_field(report1->field[0],  2, 0x00);
	hid_set_field(report1->field[0],  3, 0x00);
	hid_set_field(report1->field[0],  4, 0xb8 | tile);
	hid_set_field(report1->field[0],  5, 0x00);
	hid_set_field(report1->field[0],  6, 0x00);
	hid_set_field(report1->field[0],  7, 0x40);
	hid_set_field(report1->field[0],  8, 0x00);
	hid_set_field(report1->field[0],  9, 0x00);
	hid_set_field(report1->field[0], 10,   32);

	hid_set_field(report2->field[0],  0, (chip << 2) | 0x01);
	hid_set_field(report2->field[0],  1, 0x00);
	hid_set_field(report2->field[0],  2, 0x00);
	hid_set_field(report2->field[0],  3,   32);

	tdata = vbitmap + (tile * 4 + chip) * 64;
	for (i = 0; i < 64; i++)
		if (i < 32)
			hid_set_field(report1->field[0], 11 + i, tdata[i]);
		else
			hid_set_field(report2->field[0], 4 + i - 32, tdata[i]);

	hid_hw_request(data->hdev, report1, HID_REQ_SET_REPORT);
	hid_hw_request(data->hdev, report2, HID_REQ_SET_REPORT);
	spin_unlock_irqrestore(&data->lock, flags);
	return 0;
}