adi
if (!current->mm->context.adi) {
current->mm->context.adi = true;
bool adi;
if (current && current->mm && current->mm->context.adi) {
struct adi adi[2];
struct adi *adi = port->adi;
adi[i].ret = -1;
if ((w & 0x30) < 0x30 && adi[i].ret < ADI_MAX_LENGTH && t[i] > 0) {
adi[i].data[++adi[i].ret] = w;
struct adi *adi = port->adi;
adi[0].idx = adi[1].idx = 0;
if (adi[0].ret <= 0 || adi[1].ret <= 0) return;
if (adi[0].data[0] & 0x20 || ~adi[1].data[0] & 0x20) return;
for (i = 1; i <= adi[1].ret; i++)
adi[0].data[((length - 1) >> 1) + i + 1] = adi[1].data[i];
adi[0].ret += adi[1].ret;
adi[1].ret = -1;
static inline int adi_get_bits(struct adi *adi, int count)
if ((adi->idx += count) > adi->ret) return 0;
bits |= ((adi->data[adi->idx - i] >> 5) & 1) << i;
static int adi_decode(struct adi *adi)
struct input_dev *dev = adi->dev;
char *abs = adi->abs;
short *key = adi->key;
if (adi->ret < adi->length || adi->id != (adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4)))
for (i = 0; i < adi->axes10; i++)
input_report_abs(dev, *abs++, adi_get_bits(adi, 10));
for (i = 0; i < adi->axes8; i++)
input_report_abs(dev, *abs++, adi_get_bits(adi, 8));
for (i = 0; i < adi->buttons && i < 63; i++) {
if (i == adi->pad) {
t = adi_get_bits(adi, 4);
input_report_key(dev, *key++, adi_get_bits(adi, 1));
for (i = 0; i < adi->hats; i++) {
if ((t = adi_get_bits(adi, 4)) > 8) t = 0;
for (i = 63; i < adi->buttons; i++)
input_report_key(dev, *key++, adi_get_bits(adi, 1));
adi_move_bits(port, port->adi[0].length);
if (port->adi[i].length)
result |= adi_decode(port->adi + i);
static void adi_id_decode(struct adi *adi, struct adi_port *port)
if (adi->ret < ADI_MIN_ID_LENGTH) /* Minimum ID packet length */
if (adi->ret < (t = adi_get_bits(adi, 10))) {
printk(KERN_WARNING "adi: Short ID packet: reported: %d != read: %d\n", t, adi->ret);
adi->id = adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4);
if ((t = adi_get_bits(adi, 4)) & ADI_FLAG_HAT) adi->hats++;
adi->length = adi_get_bits(adi, 10);
if (adi->length >= ADI_MAX_LENGTH || adi->length < ADI_MIN_LENGTH) {
printk(KERN_WARNING "adi: Bad data packet length (%d).\n", adi->length);
adi->length = 0;
adi->axes8 = adi_get_bits(adi, 4);
adi->buttons = adi_get_bits(adi, 6);
if (adi_get_bits(adi, 6) != 8 && adi->hats) {
adi->length = 0;
adi->buttons += adi_get_bits(adi, 6);
adi->hats += adi_get_bits(adi, 4);
i = adi_get_bits(adi, 4);
adi->axes10 = adi->axes8 - i;
adi->axes8 = i;
t = adi_get_bits(adi, 4);
adi->cname[i] = adi_get_bits(adi, 8);
adi->cname[i] = 0;
t = 8 + adi->buttons + adi->axes10 * 10 + adi->axes8 * 8 + adi->hats * 4;
if (adi->length != t && adi->length != t + (t & 1)) {
printk(KERN_WARNING "adi: Expected length %d != data length %d\n", t, adi->length);
adi->length = 0;
switch (adi->id) {
adi->pad = 4;
adi->buttons -= 4;
adi->pad = 0;
adi->buttons -= 4;
adi->pad = -1;
static int adi_init_input(struct adi *adi, struct adi_port *port, int half)
adi->dev = input_dev = input_allocate_device();
t = adi->id < ADI_ID_MAX ? adi->id : ADI_ID_MAX;
snprintf(buf, ADI_MAX_PHYS_LENGTH, adi_names[t], adi->id);
snprintf(adi->name, ADI_MAX_NAME_LENGTH, "Logitech %s [%s]", buf, adi->cname);
snprintf(adi->phys, ADI_MAX_PHYS_LENGTH, "%s/input%d", port->gameport->phys, half);
adi->abs = adi_abs[t];
adi->key = adi_key[t];
input_dev->name = adi->name;
input_dev->phys = adi->phys;
input_dev->id.product = adi->id;
for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++)
set_bit(adi->abs[i], input_dev->absbit);
for (i = 0; i < adi->buttons; i++)
set_bit(adi->key[i], input_dev->keybit);
static void adi_init_center(struct adi *adi)
if (!adi->length)
for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++) {
t = adi->abs[i];
x = input_abs_get_val(adi->dev, t);
if (t == ABS_THROTTLE || t == ABS_RUDDER || adi->id == ADI_ID_WGPE)
x = i < adi->axes10 ? 512 : 128;
if (i < adi->axes10)
input_set_abs_params(adi->dev, t, 64, x * 2 - 64, 2, 16);
else if (i < adi->axes10 + adi->axes8)
input_set_abs_params(adi->dev, t, 48, x * 2 - 48, 1, 16);
input_set_abs_params(adi->dev, t, -1, 1, 0, 0);
if (port->adi[0].ret >= ADI_MIN_LEN_LENGTH)
adi_move_bits(port, adi_get_bits(port->adi, 10));
adi_id_decode(port->adi + i, port);
if (!port->adi[i].length)
err = adi_init_input(port->adi + i, port, i);
if (!port->adi[0].length && !port->adi[1].length) {
if (port->adi[i].length > 0) {
adi_init_center(port->adi + i);
err = input_register_device(port->adi[i].dev);
if (port->adi[i].length > 0) {
input_unregister_device(port->adi[i].dev);
port->adi[i].dev = NULL;
input_free_device(port->adi[i].dev);
if (port->adi[i].length > 0)
input_unregister_device(port->adi[i].dev);
SH_PFC_FUNCTION(adi),