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;
}
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;
}
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;
}
/*
* 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;
}
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;
}
/* 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;
}
/* 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;
}