| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 3897 | 86.24% | 6 | 16.67% |
| Dmitry Torokhov | 329 | 7.28% | 10 | 27.78% |
| Vojtech Pavlik | 155 | 3.43% | 6 | 16.67% |
| Daniel Mack | 42 | 0.93% | 1 | 2.78% |
| Randy Dunlap | 37 | 0.82% | 1 | 2.78% |
| Jesper Juhl | 18 | 0.40% | 1 | 2.78% |
| Linus Torvalds | 17 | 0.38% | 3 | 8.33% |
| Zinx Verituse | 7 | 0.15% | 1 | 2.78% |
| Gustavo A. R. Silva | 5 | 0.11% | 1 | 2.78% |
| Ingo Molnar | 4 | 0.09% | 2 | 5.56% |
| Tim Schmielau | 3 | 0.07% | 1 | 2.78% |
| Axel Lin | 2 | 0.04% | 1 | 2.78% |
| Jiri Slaby | 2 | 0.04% | 1 | 2.78% |
| Pekka J Enberg | 1 | 0.02% | 1 | 2.78% |
| Total | 4519 | 36 |
/* * Copyright (c) 1998-2005 Vojtech Pavlik */ /* * Microsoft SideWinder joystick family driver for Linux */ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/delay.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/input.h> #include <linux/gameport.h> #include <linux/jiffies.h> #define DRIVER_DESC "Microsoft SideWinder joystick family driver" MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); /* * These are really magic values. Changing them can make a problem go away, * as well as break everything. */ #undef SW_DEBUG #undef SW_DEBUG_DATA #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 */ #ifdef SW_DEBUG #define dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg) #else #define dbg(format, arg...) do {} while (0) #endif /* * SideWinder joystick types ... */ #define SW_ID_3DP 0 #define SW_ID_GP 1 #define SW_ID_PP 2 #define SW_ID_FFP 3 #define SW_ID_FSP 4 #define SW_ID_FFW 5 /* * Names, buttons, axes ... */ static char *sw_name[] = { "3D Pro", "GamePad", "Precision Pro", "Force Feedback Pro", "FreeStyle Pro", "Force Feedback Wheel" }; static char sw_abs[][7] = { { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y }, { ABS_X, ABS_Y }, { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y }, { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y }, { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y }, { ABS_RX, ABS_RUDDER, ABS_THROTTLE }}; static char sw_bit[][7] = { { 10, 10, 9, 10, 1, 1 }, { 1, 1 }, { 10, 10, 6, 7, 1, 1 }, { 10, 10, 6, 7, 1, 1 }, { 10, 10, 6, 1, 1 }, { 10, 7, 7, 1, 1 }}; static short sw_btn[][12] = { { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_MODE }, { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE }, { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT }, { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT }, { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT }, { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 }}; static struct { int x; int y; } sw_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; struct sw { struct gameport *gameport; struct input_dev *dev[4]; char name[64]; char phys[4][32]; int length; int type; int bits; int number; int fail; int ok; int reads; int bads; }; /* * sw_read_packet() is a function which reads either a data packet, or an * identification packet from a SideWinder joystick. The protocol is very, * very, very braindamaged. Microsoft patented it in US patent #5628686. */ static int sw_read_packet(struct gameport *gameport, unsigned char *buf, int length, int id) { unsigned long flags; int timeout, bitout, sched, i, kick, start, strobe; unsigned char pending, u, v; i = -id; /* Don't care about data, only want ID */ 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); bitout = start; pending = 0; sched = 0; local_irq_save(flags); /* Quiet, please */ gameport_trigger(gameport); /* Trigger */ v = gameport_read(gameport); do { bitout--; u = v; 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 */ while ((timeout > 0 || bitout > 0) && (i < length)) { timeout--; bitout--; /* Decrement timers */ sched--; u = v; v = gameport_read(gameport); if ((~u & v & 0x10) && (bitout > 0)) { /* Rising edge on clock - data bit */ if (i >= 0) /* Want this data */ buf[i] = v >> 5; /* Store it */ i++; /* Advance index */ bitout = strobe; /* Extend timeout for next bit */ } if (kick && (~v & u & 0x01)) { /* Falling edge on axis 0 */ sched = kick; /* Schedule second trigger */ kick = 0; /* Don't schedule next time on falling edge */ pending = 1; /* Mark schedule */ } if (pending && sched < 0 && (i > -SW_END)) { /* Second trigger time */ gameport_trigger(gameport); /* Trigger */ bitout = start; /* Long bit timeout */ pending = 0; /* Unmark schedule */ timeout = 0; /* Switch from global to bit timeouts */ } } local_irq_restore(flags); /* Done - relax */ #ifdef SW_DEBUG_DATA { int j; printk(KERN_DEBUG "sidewinder.c: Read %d triplets. [", i); for (j = 0; j < i; j++) printk("%d", buf[j]); printk("]\n"); } #endif return i; } /* * sw_get_bits() and GB() compose bits from the triplet buffer into a __u64. * Parameter 'pos' is bit number inside packet where to start at, 'num' is number * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits * is number of bits per triplet. */ #define GB(pos,num) sw_get_bits(buf, pos, num, sw->bits) static __u64 sw_get_bits(unsigned char *buf, int pos, int num, char bits) { __u64 data = 0; int tri = pos % bits; /* Start position */ int i = pos / bits; int bit = 0; while (num--) { data |= (__u64)((buf[i] >> tri++) & 1) << bit++; /* Transfer bit */ if (tri == bits) { i++; /* Next triplet */ tri = 0; } } return data; } /* * sw_init_digital() initializes a SideWinder 3D Pro joystick * into digital mode. */ static void sw_init_digital(struct gameport *gameport) { int seq[] = { 140, 140+725, 140+300, 0 }; unsigned long flags; int i, t; local_irq_save(flags); i = 0; do { gameport_trigger(gameport); /* Trigger */ 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]); gameport_trigger(gameport); /* Last trigger */ local_irq_restore(flags); } /* * sw_parity() computes parity of __u64 */ static int sw_parity(__u64 t) { int x = t ^ (t >> 32); x ^= x >> 16; x ^= x >> 8; x ^= x >> 4; x ^= x >> 2; x ^= x >> 1; return x & 1; } /* * sw_ccheck() checks synchronization bits and computes checksum of nibbles. */ static int sw_check(__u64 t) { unsigned char sum = 0; if ((t & 0x8080808080808080ULL) ^ 0x80) /* Sync */ return -1; while (t) { /* Sum */ sum += t & 0xf; t >>= 4; } return sum & 0xf; } /* * sw_parse() analyzes SideWinder joystick data, and writes the results into * the axes and buttons arrays. */ static int sw_parse(unsigned char *buf, struct sw *sw) { int hat, i, j; struct input_dev *dev; switch (sw->type) { case SW_ID_3DP: if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8) return -1; dev = sw->dev[0]; 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)); input_report_abs(dev, ABS_RZ, (GB(35,2) << 7) | GB(40,7)); input_report_abs(dev, ABS_THROTTLE, (GB(32,3) << 7) | GB(48,7)); input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x); input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y); for (j = 0; j < 7; j++) input_report_key(dev, sw_btn[SW_ID_3DP][j], !GB(j+8,1)); input_report_key(dev, BTN_BASE4, !GB(38,1)); input_report_key(dev, BTN_BASE5, !GB(37,1)); input_sync(dev); return 0; case SW_ID_GP: for (i = 0; i < sw->number; i ++) { if (sw_parity(GB(i*15,15))) return -1; input_report_abs(sw->dev[i], ABS_X, GB(i*15+3,1) - GB(i*15+2,1)); input_report_abs(sw->dev[i], ABS_Y, GB(i*15+0,1) - GB(i*15+1,1)); for (j = 0; j < 10; j++) input_report_key(sw->dev[i], sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1)); input_sync(sw->dev[i]); } return 0; case SW_ID_PP: case SW_ID_FFP: if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8) return -1; dev = sw->dev[0]; input_report_abs(dev, ABS_X, GB( 9,10)); input_report_abs(dev, ABS_Y, GB(19,10)); input_report_abs(dev, ABS_RZ, GB(36, 6)); input_report_abs(dev, ABS_THROTTLE, GB(29, 7)); input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x); input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y); for (j = 0; j < 9; j++) input_report_key(dev, sw_btn[SW_ID_PP][j], !GB(j,1)); input_sync(dev); return 0; case SW_ID_FSP: if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8) return -1; dev = sw->dev[0]; input_report_abs(dev, ABS_X, GB( 0,10)); input_report_abs(dev, ABS_Y, GB(16,10)); input_report_abs(dev, ABS_THROTTLE, GB(32, 6)); input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x); input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y); for (j = 0; j < 6; j++) input_report_key(dev, sw_btn[SW_ID_FSP][j], !GB(j+10,1)); input_report_key(dev, BTN_TR, !GB(26,1)); input_report_key(dev, BTN_START, !GB(27,1)); input_report_key(dev, BTN_MODE, !GB(38,1)); input_report_key(dev, BTN_SELECT, !GB(39,1)); input_sync(dev); return 0; case SW_ID_FFW: if (!sw_parity(GB(0,33))) return -1; dev = sw->dev[0]; input_report_abs(dev, ABS_RX, GB( 0,10)); input_report_abs(dev, ABS_RUDDER, GB(10, 6)); input_report_abs(dev, ABS_THROTTLE, GB(16, 6)); for (j = 0; j < 8; j++) input_report_key(dev, sw_btn[SW_ID_FFW][j], !GB(j+22,1)); input_sync(dev); return 0; } return -1; } /* * sw_read() reads SideWinder joystick data, and reinitializes * the joystick in case of persistent problems. This is the function that is * called from the generic code to poll the joystick. */ static int sw_read(struct sw *sw) { unsigned char buf[SW_LENGTH]; int i; i = sw_read_packet(sw->gameport, buf, sw->length, 0); if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */ if (i == 64 && !sw_check(sw_get_bits(buf,0,64,1))) { /* Last init failed, 1 bit mode */ printk(KERN_WARNING "sidewinder.c: Joystick in wrong mode on %s" " - going to reinitialize.\n", sw->gameport->phys); sw->fail = SW_FAIL; /* Reinitialize */ i = 128; /* Bogus value */ } if (i < 66 && GB(0,64) == GB(i*3-66,64)) /* 1 == 3 */ i = 66; /* Everything is fine */ if (i < 66 && GB(0,64) == GB(66,64)) /* 1 == 2 */ i = 66; /* Everything is fine */ if (i < 66 && GB(i*3-132,64) == GB(i*3-66,64)) { /* 2 == 3 */ memmove(buf, buf + i - 22, 22); /* Move data */ i = 66; /* Carry on */ } } if (i == sw->length && !sw_parse(buf, sw)) { /* Parse data */ sw->fail = 0; sw->ok++; if (sw->type == SW_ID_3DP && sw->length == 66 /* Many packets OK */ && sw->ok > SW_OK) { printk(KERN_INFO "sidewinder.c: No more trouble on %s" " - enabling optimization again.\n", sw->gameport->phys); sw->length = 22; } return 0; } sw->ok = 0; sw->fail++; if (sw->type == SW_ID_3DP && sw->length == 22 && sw->fail > SW_BAD) { /* Consecutive bad packets */ printk(KERN_INFO "sidewinder.c: Many bit errors on %s" " - disabling optimization.\n", sw->gameport->phys); sw->length = 66; } 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 */ mdelay(3 * SW_TIMEOUT); sw_init_digital(sw->gameport); } mdelay(SW_TIMEOUT); i = sw_read_packet(sw->gameport, buf, SW_LENGTH, 0); /* Read normal data packet */ 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_poll(struct gameport *gameport) { struct sw *sw = gameport_get_drvdata(gameport); sw->reads++; if (sw_read(sw)) sw->bads++; } static int sw_open(struct input_dev *dev) { struct sw *sw = input_get_drvdata(dev); gameport_start_polling(sw->gameport); return 0; } static void sw_close(struct input_dev *dev) { struct sw *sw = input_get_drvdata(dev); gameport_stop_polling(sw->gameport); } /* * sw_print_packet() prints the contents of a SideWinder packet. */ static void sw_print_packet(char *name, int length, unsigned char *buf, char bits) { int i; printk(KERN_INFO "sidewinder.c: %s packet, %d bits. [", name, length); for (i = (((length + 3) >> 2) - 1); i >= 0; i--) printk("%x", (int)sw_get_bits(buf, i << 2, 4, bits)); printk("]\n"); } /* * sw_3dp_id() translates the 3DP id into a human legible string. * Unfortunately I don't know how to do this for the other SW types. */ static void sw_3dp_id(unsigned char *buf, char *comment, size_t size) { int i; char pnp[8], rev[9]; for (i = 0; i < 7; i++) /* ASCII PnP ID */ pnp[i] = sw_get_bits(buf, 24+8*i, 8, 1); for (i = 0; i < 8; i++) /* ASCII firmware revision */ rev[i] = sw_get_bits(buf, 88+8*i, 8, 1); pnp[7] = rev[8] = 0; snprintf(comment, size, " [PnP %d.%02d id %s rev %s]", (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | /* Two 6-bit values */ sw_get_bits(buf, 16, 6, 1)) / 100, (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | sw_get_bits(buf, 16, 6, 1)) % 100, pnp, rev); } /* * sw_guess_mode() checks the upper two button bits for toggling - * indication of that the joystick is in 3-bit mode. This is documented * behavior for 3DP ID packet, and for example the FSP does this in * normal packets instead. Fun ... */ static int sw_guess_mode(unsigned char *buf, int len) { int i; unsigned char xor = 0; 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 int sw_connect(struct gameport *gameport, struct gameport_driver *drv) { struct sw *sw; struct input_dev *input_dev; int i, j, k, l; int err = 0; unsigned char *buf = NULL; /* [SW_LENGTH] */ unsigned char *idbuf = NULL; /* [SW_LENGTH] */ unsigned char m = 1; char comment[40]; comment[0] = 0; sw = kzalloc(sizeof(struct sw), GFP_KERNEL); buf = kmalloc(SW_LENGTH, GFP_KERNEL); idbuf = kmalloc(SW_LENGTH, GFP_KERNEL); if (!sw || !buf || !idbuf) { err = -ENOMEM; goto fail1; } sw->gameport = gameport; 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 */ 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 */ msleep(SW_TIMEOUT); i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */ msleep(SW_TIMEOUT); dbg("Init 1b: Length %d.", i); 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); 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) { 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); } sw->type = -1; k = SW_FAIL; /* Try SW_FAIL times */ l = 0; do { k--; 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); if (i > l) { /* Longer? As we can only lose bits, it makes */ /* no sense to try detection for a packet shorter */ l = i; /* than the previous one */ sw->number = 1; sw->gameport = gameport; sw->length = i; sw->bits = m; dbg("Init 3a: Case %d.\n", i * m); switch (i * m) { case 60: sw->number++; /* fall through */ case 45: /* Ambiguous packet length */ if (j <= 40) { /* ID length less or eq 40 -> FSP */ case 43: sw->type = SW_ID_FSP; break; } sw->number++; /* fall through */ case 30: sw->number++; /* fall through */ case 15: sw->type = SW_ID_GP; break; case 33: case 31: sw->type = SW_ID_FFW; break; case 48: /* Ambiguous */ if (j == 14) { /* ID length 14*3 -> FFP */ sw->type = SW_ID_FFP; sprintf(comment, " [AC %s]", sw_get_bits(idbuf,38,1,3) ? "off" : "on"); } else sw->type = SW_ID_PP; break; case 66: sw->bits = 3; /* fall through */ case 198: sw->length = 22; /* fall through */ case 64: sw->type = SW_ID_3DP; if (j == 160) sw_3dp_id(idbuf, comment, sizeof(comment)); break; } } } 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; } #ifdef SW_DEBUG sw_print_packet("ID", j * 3, idbuf, 3); 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; for (i = 0; i < sw->number; i++) { int bits, code; snprintf(sw->name, sizeof(sw->name), "Microsoft SideWinder %s", sw_name[sw->type]); snprintf(sw->phys[i], sizeof(sw->phys[i]), "%s/input%d", gameport->phys, i); sw->dev[i] = input_dev = input_allocate_device(); if (!input_dev) { err = -ENOMEM; goto fail3; } input_dev->name = sw->name; input_dev->phys = sw->phys[i]; input_dev->id.bustype = BUS_GAMEPORT; input_dev->id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT; input_dev->id.product = sw->type; input_dev->id.version = 0x0100; input_dev->dev.parent = &gameport->dev; input_set_drvdata(input_dev, sw); input_dev->open = sw_open; input_dev->close = sw_close; input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); for (j = 0; (bits = sw_bit[sw->type][j]); j++) { int min, max, fuzz, flat; code = sw_abs[sw->type][j]; min = bits == 1 ? -1 : 0; max = (1 << bits) - 1; fuzz = (bits >> 1) >= 2 ? 1 << ((bits >> 1) - 2) : 0; flat = code == ABS_THROTTLE || bits < 5 ? 0 : 1 << (bits - 5); input_set_abs_params(input_dev, code, min, max, fuzz, flat); } for (j = 0; (code = sw_btn[sw->type][j]); j++) __set_bit(code, input_dev->keybit); dbg("%s%s [%d-bit id %d data %d]\n", sw->name, comment, m, l, k); err = input_register_device(sw->dev[i]); if (err) goto fail4; } out: kfree(buf); kfree(idbuf); return err; fail4: input_free_device(sw->dev[i]); fail3: while (--i >= 0) input_unregister_device(sw->dev[i]); fail2: gameport_close(gameport); fail1: gameport_set_drvdata(gameport, NULL); kfree(sw); goto out; } static void sw_disconnect(struct gameport *gameport) { struct sw *sw = gameport_get_drvdata(gameport); int i; 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_driver sw_drv = { .driver = { .name = "sidewinder", .owner = THIS_MODULE, }, .description = DRIVER_DESC, .connect = sw_connect, .disconnect = sw_disconnect, }; module_gameport_driver(sw_drv);
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