MODULE_LICENSE("GPL");
struct l4 {
- struct gameport gameport;
+ struct gameport *gameport;
unsigned char port;
- char phys[32];
-} *l4_port[8];
+};
-char l4_name[] = "PDPI Lightning 4";
+static struct l4 l4_ports[8];
/*
* l4_wait_ready() waits for the L4 to become ready.
static int l4_wait_ready(void)
{
- unsigned int t;
- t = L4_TIMEOUT;
+ unsigned int t = L4_TIMEOUT;
+
while ((inb(L4_PORT) & L4_BUSY) && t > 0) t--;
- return -(t<=0);
+ return -(t <= 0);
}
/*
static int l4_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
- struct l4 *l4 = gameport->driver;
+ struct l4 *l4 = gameport->port_data;
unsigned char status;
int i, result = -1;
static int l4_open(struct gameport *gameport, int mode)
{
- struct l4 *l4 = gameport->driver;
+ struct l4 *l4 = gameport->port_data;
+
if (l4->port != 0 && mode != GAMEPORT_MODE_COOKED)
return -1;
outb(L4_SELECT_ANALOG, L4_PORT);
outb(L4_SELECT_ANALOG, L4_PORT);
outb(L4_SELECT_DIGITAL + (port >> 2), L4_PORT);
+ if (inb(L4_PORT) & L4_BUSY)
+ goto out;
- if (inb(L4_PORT) & L4_BUSY) goto fail;
outb(L4_CMD_GETCAL, L4_PORT);
+ if (l4_wait_ready())
+ goto out;
- if (l4_wait_ready()) goto fail;
- if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2)) goto fail;
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2))
+ goto out;
- if (l4_wait_ready()) goto fail;
+ if (l4_wait_ready())
+ goto out;
outb(port & 3, L4_PORT);
for (i = 0; i < 4; i++) {
- if (l4_wait_ready()) goto fail;
+ if (l4_wait_ready())
+ goto out;
cal[i] = inb(L4_PORT);
}
result = 0;
-fail: outb(L4_SELECT_ANALOG, L4_PORT);
+out: outb(L4_SELECT_ANALOG, L4_PORT);
return result;
}
outb(L4_SELECT_ANALOG, L4_PORT);
outb(L4_SELECT_DIGITAL + (port >> 2), L4_PORT);
+ if (inb(L4_PORT) & L4_BUSY)
+ goto out;
- if (inb(L4_PORT) & L4_BUSY) goto fail;
outb(L4_CMD_SETCAL, L4_PORT);
+ if (l4_wait_ready())
+ goto out;
- if (l4_wait_ready()) goto fail;
- if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2)) goto fail;
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2))
+ goto out;
- if (l4_wait_ready()) goto fail;
+ if (l4_wait_ready())
+ goto out;
outb(port & 3, L4_PORT);
for (i = 0; i < 4; i++) {
- if (l4_wait_ready()) goto fail;
+ if (l4_wait_ready())
+ goto out;
outb(cal[i], L4_PORT);
}
result = 0;
-fail: outb(L4_SELECT_ANALOG, L4_PORT);
+out: outb(L4_SELECT_ANALOG, L4_PORT);
return result;
}
{
int i, t;
int cal[4];
- struct l4 *l4 = gameport->driver;
+ struct l4 *l4 = gameport->port_data;
if (l4_getcal(l4->port, cal))
return -1;
return 0;
}
-static int __init l4_init(void)
+static int __init l4_create_ports(int card_no)
{
- int cal[4] = {255,255,255,255};
- int i, j, rev, cards = 0;
- struct gameport *gameport;
struct l4 *l4;
+ struct gameport *port;
+ int i, idx;
- if (!request_region(L4_PORT, 1, "lightning"))
- return -1;
+ for (i = 0; i < 4; i++) {
- for (i = 0; i < 2; i++) {
+ idx = card_no * 4 + i;
+ l4 = &l4_ports[idx];
- outb(L4_SELECT_ANALOG, L4_PORT);
- outb(L4_SELECT_DIGITAL + i, L4_PORT);
+ if (!(l4->gameport = port = gameport_allocate_port())) {
+ printk(KERN_ERR "lightning: Memory allocation failed\n");
+ while (--i >= 0) {
+ gameport_free_port(l4->gameport);
+ l4->gameport = NULL;
+ }
+ return -ENOMEM;
+ }
+ l4->port = idx;
- if (inb(L4_PORT) & L4_BUSY) continue;
- outb(L4_CMD_ID, L4_PORT);
+ port->port_data = l4;
+ port->open = l4_open;
+ port->cooked_read = l4_cooked_read;
+ port->calibrate = l4_calibrate;
- if (l4_wait_ready()) continue;
- if (inb(L4_PORT) != L4_SELECT_DIGITAL + i) continue;
+ gameport_set_name(port, "PDPI Lightning 4");
+ gameport_set_phys(port, "isa%04x/gameport%d", L4_PORT, idx);
- if (l4_wait_ready()) continue;
- if (inb(L4_PORT) != L4_ID) continue;
+ if (idx == 0)
+ port->io = L4_PORT;
+ }
- if (l4_wait_ready()) continue;
- rev = inb(L4_PORT);
+ return 0;
+}
- if (!rev) continue;
+static int __init l4_add_card(int card_no)
+{
+ int cal[4] = { 255, 255, 255, 255 };
+ int i, rev, result;
+ struct l4 *l4;
- if (!(l4_port[i * 4] = kmalloc(sizeof(struct l4) * 4, GFP_KERNEL))) {
- printk(KERN_ERR "lightning: Out of memory allocating ports.\n");
- continue;
- }
- memset(l4_port[i * 4], 0, sizeof(struct l4) * 4);
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ outb(L4_SELECT_DIGITAL + card_no, L4_PORT);
- for (j = 0; j < 4; j++) {
+ if (inb(L4_PORT) & L4_BUSY)
+ return -1;
+ outb(L4_CMD_ID, L4_PORT);
- l4 = l4_port[i * 4 + j] = l4_port[i * 4] + j;
- l4->port = i * 4 + j;
+ if (l4_wait_ready())
+ return -1;
- sprintf(l4->phys, "isa%04x/gameport%d", L4_PORT, 4 * i + j);
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + card_no)
+ return -1;
- gameport = &l4->gameport;
- gameport->driver = l4;
- gameport->open = l4_open;
- gameport->cooked_read = l4_cooked_read;
- gameport->calibrate = l4_calibrate;
+ if (l4_wait_ready())
+ return -1;
+ if (inb(L4_PORT) != L4_ID)
+ return -1;
- gameport->name = l4_name;
- gameport->phys = l4->phys;
- gameport->id.bustype = BUS_ISA;
+ if (l4_wait_ready())
+ return -1;
+ rev = inb(L4_PORT);
- if (!i && !j)
- gameport->io = L4_PORT;
+ if (!rev)
+ return -1;
- if (rev > 0x28) /* on 2.9+ the setcal command works correctly */
- l4_setcal(l4->port, cal);
+ result = l4_create_ports(card_no);
+ if (result)
+ return result;
- gameport_register_port(gameport);
- }
+ printk(KERN_INFO "gameport: PDPI Lightning 4 %s card v%d.%d at %#x\n",
+ card_no ? "secondary" : "primary", rev >> 4, rev, L4_PORT);
- printk(KERN_INFO "gameport: PDPI Lightning 4 %s card v%d.%d at %#x\n",
- i ? "secondary" : "primary", rev >> 4, rev, L4_PORT);
+ for (i = 0; i < 4; i++) {
+ l4 = &l4_ports[card_no * 4 + i];
- cards++;
+ if (rev > 0x28) /* on 2.9+ the setcal command works correctly */
+ l4_setcal(l4->port, cal);
+ gameport_register_port(l4->gameport);
}
+ return 0;
+}
+
+static int __init l4_init(void)
+{
+ int i, cards = 0;
+
+ if (!request_region(L4_PORT, 1, "lightning"))
+ return -1;
+
+ for (i = 0; i < 2; i++)
+ if (l4_add_card(i) == 0)
+ cards++;
+
outb(L4_SELECT_ANALOG, L4_PORT);
if (!cards) {
static void __exit l4_exit(void)
{
int i;
- int cal[4] = {59, 59, 59, 59};
+ int cal[4] = { 59, 59, 59, 59 };
for (i = 0; i < 8; i++)
- if (l4_port[i]) {
- l4_setcal(l4_port[i]->port, cal);
- gameport_unregister_port(&l4_port[i]->gameport);
+ if (l4_ports[i].gameport) {
+ l4_setcal(l4_ports[i].port, cal);
+ gameport_unregister_port(l4_ports[i].gameport);
}
+
outb(L4_SELECT_ANALOG, L4_PORT);
release_region(L4_PORT, 1);
}
git://git.onelab.eu / linux-2.6.git / blobdiff