/*
- * $Id: sidewinder.c,v 1.29 2002/01/22 20:28:51 vojtech Exp $
- *
- * Copyright (c) 1998-2001 Vojtech Pavlik
+ * Copyright (c) 1998-2005 Vojtech Pavlik
*/
/*
#include <linux/input.h>
#include <linux/gameport.h>
+#define DRIVER_DESC "Microsoft SideWinder joystick family driver"
+
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Microsoft SideWinder joystick family driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* as well as break everything.
*/
-/* #define SW_DEBUG */
+#undef SW_DEBUG
+#undef SW_DEBUG_DATA
-#define SW_START 400 /* The time we wait for the first bit [400 us] */
-#define SW_STROBE 45 /* Max time per bit [45 us] */
-#define SW_TIMEOUT 4000 /* Wait for everything to settle [4 ms] */
+#define SW_START 600 /* The time we wait for the first bit [600 us] */
+#define SW_STROBE 60 /* Max time per bit [60 us] */
+#define SW_TIMEOUT 6 /* Wait for everything to settle [6 ms] */
#define SW_KICK 45 /* Wait after A0 fall till kick [45 us] */
#define SW_END 8 /* Number of bits before end of packet to kick */
#define SW_FAIL 16 /* Number of packet read errors to fail and reinitialize */
#define SW_BAD 2 /* Number of packet read errors to switch off 3d Pro optimization */
#define SW_OK 64 /* Number of packet read successes to switch optimization back on */
#define SW_LENGTH 512 /* Max number of bits in a packet */
-#define SW_REFRESH HZ/50 /* Time to wait between updates of joystick data [20 ms] */
#ifdef SW_DEBUG
#define dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg)
struct sw {
struct gameport *gameport;
- struct timer_list timer;
struct input_dev dev[4];
char name[64];
char phys[4][32];
int ok;
int reads;
int bads;
- int used;
};
/*
unsigned char pending, u, v;
i = -id; /* Don't care about data, only want ID */
- timeout = id ? gameport_time(gameport, SW_TIMEOUT) : 0; /* Set up global timeout for ID packet */
+ timeout = id ? gameport_time(gameport, SW_TIMEOUT * 1000) : 0; /* Set up global timeout for ID packet */
kick = id ? gameport_time(gameport, SW_KICK) : 0; /* Set up kick timeout for ID packet */
start = gameport_time(gameport, SW_START);
strobe = gameport_time(gameport, SW_STROBE);
v = gameport_read(gameport);
} while (!(~v & u & 0x10) && (bitout > 0)); /* Wait for first falling edge on clock */
- if (bitout > 0) bitout = strobe; /* Extend time if not timed out */
+ if (bitout > 0)
+ bitout = strobe; /* Extend time if not timed out */
while ((timeout > 0 || bitout > 0) && (i < length)) {
local_irq_restore(flags); /* Done - relax */
-#ifdef SW_DEBUG
+#ifdef SW_DEBUG_DATA
{
int j;
printk(KERN_DEBUG "sidewinder.c: Read %d triplets. [", i);
i = 0;
do {
gameport_trigger(gameport); /* Trigger */
- t = gameport_time(gameport, SW_TIMEOUT);
+ t = gameport_time(gameport, SW_TIMEOUT * 1000);
while ((gameport_read(gameport) & 1) && t) t--; /* Wait for axis to fall back to 0 */
udelay(seq[i]); /* Delay magic time */
} while (seq[++i]);
static int sw_parity(__u64 t)
{
int x = t ^ (t >> 32);
+
x ^= x >> 16;
x ^= x >> 8;
x ^= x >> 4;
case SW_ID_3DP:
- if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8) return -1;
+ if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8)
+ return -1;
input_report_abs(dev, ABS_X, (GB( 3,3) << 7) | GB(16,7));
input_report_abs(dev, ABS_Y, (GB( 0,3) << 7) | GB(24,7));
for (i = 0; i < sw->number; i ++) {
- if (sw_parity(GB(i*15,15))) return -1;
+ if (sw_parity(GB(i*15,15)))
+ return -1;
input_report_abs(dev + i, ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
input_report_abs(dev + i, ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
case SW_ID_PP:
case SW_ID_FFP:
- if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8) return -1;
+ if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8)
+ return -1;
input_report_abs(dev, ABS_X, GB( 9,10));
input_report_abs(dev, ABS_Y, GB(19,10));
case SW_ID_FSP:
- if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8) return -1;
+ if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8)
+ return -1;
input_report_abs(dev, ABS_X, GB( 0,10));
input_report_abs(dev, ABS_Y, GB(16,10));
case SW_ID_FFW:
- if (!sw_parity(GB(0,33))) return -1;
+ if (!sw_parity(GB(0,33)))
+ return -1;
input_report_abs(dev, ABS_RX, GB( 0,10));
input_report_abs(dev, ABS_RUDDER, GB(10, 6));
sw->length = 66;
}
- if (sw->fail < SW_FAIL) return -1; /* Not enough, don't reinitialize yet */
+ if (sw->fail < SW_FAIL)
+ return -1; /* Not enough, don't reinitialize yet */
printk(KERN_WARNING "sidewinder.c: Too many bit errors on %s"
" - reinitializing joystick.\n", sw->gameport->phys);
if (!i && sw->type == SW_ID_3DP) { /* 3D Pro can be in analog mode */
- udelay(3 * SW_TIMEOUT);
+ mdelay(3 * SW_TIMEOUT);
sw_init_digital(sw->gameport);
}
- udelay(SW_TIMEOUT);
+ mdelay(SW_TIMEOUT);
i = sw_read_packet(sw->gameport, buf, SW_LENGTH, 0); /* Read normal data packet */
- udelay(SW_TIMEOUT);
+ mdelay(SW_TIMEOUT);
sw_read_packet(sw->gameport, buf, SW_LENGTH, i); /* Read ID packet, this initializes the stick */
sw->fail = SW_FAIL;
return -1;
}
-static void sw_timer(unsigned long private)
+static void sw_poll(struct gameport *gameport)
{
- struct sw *sw = (void *) private;
+ struct sw *sw = gameport_get_drvdata(gameport);
sw->reads++;
- if (sw_read(sw)) sw->bads++;
- mod_timer(&sw->timer, jiffies + SW_REFRESH);
+ if (sw_read(sw))
+ sw->bads++;
}
static int sw_open(struct input_dev *dev)
{
struct sw *sw = dev->private;
- if (!sw->used++)
- mod_timer(&sw->timer, jiffies + SW_REFRESH);
+
+ gameport_start_polling(sw->gameport);
return 0;
}
static void sw_close(struct input_dev *dev)
{
struct sw *sw = dev->private;
- if (!--sw->used)
- del_timer(&sw->timer);
+
+ gameport_stop_polling(sw->gameport);
}
/*
{
int i;
unsigned char xor = 0;
- for (i = 1; i < len; i++) xor |= (buf[i - 1] ^ buf[i]) & 6;
+
+ for (i = 1; i < len; i++)
+ xor |= (buf[i - 1] ^ buf[i]) & 6;
+
return !!xor * 2 + 1;
}
* sw_connect() probes for SideWinder type joysticks.
*/
-static void sw_connect(struct gameport *gameport, struct gameport_dev *dev)
+static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
{
struct sw *sw;
int i, j, k, l;
+ int err;
unsigned char *buf = NULL; /* [SW_LENGTH] */
unsigned char *idbuf = NULL; /* [SW_LENGTH] */
unsigned char m = 1;
comment[0] = 0;
- if (!(sw = kmalloc(sizeof(struct sw), GFP_KERNEL))) return;
- memset(sw, 0, sizeof(struct sw));
-
+ sw = kcalloc(1, sizeof(struct sw), GFP_KERNEL);
buf = kmalloc(SW_LENGTH, GFP_KERNEL);
idbuf = kmalloc(SW_LENGTH, GFP_KERNEL);
- if (!buf || !idbuf)
+ if (!sw || !buf || !idbuf) {
+ err = -ENOMEM;
goto fail1;
-
- gameport->private = sw;
+ }
sw->gameport = gameport;
- init_timer(&sw->timer);
- sw->timer.data = (long) sw;
- sw->timer.function = sw_timer;
- if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
+ gameport_set_drvdata(gameport, sw);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
goto fail1;
dbg("Init 0: Opened %s, io %#x, speed %d",
gameport->phys, gameport->io, gameport->speed);
i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read normal packet */
- udelay(SW_TIMEOUT);
+ msleep(SW_TIMEOUT);
dbg("Init 1: Mode %d. Length %d.", m , i);
if (!i) { /* No data. 3d Pro analog mode? */
sw_init_digital(gameport); /* Switch to digital */
- udelay(SW_TIMEOUT);
+ msleep(SW_TIMEOUT);
i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
- udelay(SW_TIMEOUT);
+ msleep(SW_TIMEOUT);
dbg("Init 1b: Length %d.", i);
- if (!i) goto fail2; /* No data -> FAIL */
+ if (!i) { /* No data -> FAIL */
+ err = -ENODEV;
+ goto fail2;
+ }
}
j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Read ID. This initializes the stick */
m |= sw_guess_mode(idbuf, j); /* ID packet should carry mode info [3DP] */
- dbg("Init 2: Mode %d. ID Length %d.", m , j);
+ dbg("Init 2: Mode %d. ID Length %d.", m, j);
- if (!j) { /* Read ID failed. Happens in 1-bit mode on PP */
- udelay(SW_TIMEOUT);
+ if (j <= 0) { /* Read ID failed. Happens in 1-bit mode on PP */
+ msleep(SW_TIMEOUT);
i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
+ m |= sw_guess_mode(buf, i);
dbg("Init 2b: Mode %d. Length %d.", m, i);
- if (!i) goto fail2;
- udelay(SW_TIMEOUT);
+ if (!i) {
+ err = -ENODEV;
+ goto fail2;
+ }
+ msleep(SW_TIMEOUT);
j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Retry reading ID */
dbg("Init 2c: ID Length %d.", j);
}
do {
k--;
- udelay(SW_TIMEOUT);
+ msleep(SW_TIMEOUT);
i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read data packet */
dbg("Init 3: Mode %d. Length %d. Last %d. Tries %d.", m, i, l, k);
}
}
- } while (k && (sw->type == -1));
+ } while (k && sw->type == -1);
if (sw->type == -1) {
printk(KERN_WARNING "sidewinder.c: unknown joystick device detected "
"on %s, contact <vojtech@ucw.cz>\n", gameport->phys);
sw_print_packet("ID", j * 3, idbuf, 3);
sw_print_packet("Data", i * m, buf, m);
+ err = -ENODEV;
goto fail2;
}
sw_print_packet("Data", i * m, buf, m);
#endif
+ gameport_set_poll_handler(gameport, sw_poll);
+ gameport_set_poll_interval(gameport, 20);
+
k = i;
l = j;
sw->name, comment, gameport->phys, m, l, k);
}
- return;
+ return 0;
+
fail2: gameport_close(gameport);
-fail1: kfree(sw);
+fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(sw);
kfree(buf);
kfree(idbuf);
+ return err;
}
static void sw_disconnect(struct gameport *gameport)
{
+ struct sw *sw = gameport_get_drvdata(gameport);
int i;
- struct sw *sw = gameport->private;
for (i = 0; i < sw->number; i++)
input_unregister_device(sw->dev + i);
gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
kfree(sw);
}
-static struct gameport_dev sw_dev = {
- .connect = sw_connect,
- .disconnect = sw_disconnect,
+static struct gameport_driver sw_drv = {
+ .driver = {
+ .name = "sidewinder",
+ },
+ .description = DRIVER_DESC,
+ .connect = sw_connect,
+ .disconnect = sw_disconnect,
};
-int __init sw_init(void)
+static int __init sw_init(void)
{
- gameport_register_device(&sw_dev);
+ gameport_register_driver(&sw_drv);
return 0;
}
-void __exit sw_exit(void)
+static void __exit sw_exit(void)
{
- gameport_unregister_device(&sw_dev);
+ gameport_unregister_driver(&sw_drv);
}
module_init(sw_init);
git://git.onelab.eu / linux-2.6.git / blobdiff