diff options
author | Paul Mackerras <paulus@samba.org> | 2005-10-31 13:37:12 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2005-10-31 13:37:12 +1100 |
commit | 23fd07750a789a66fe88cf173d52a18f1a387da4 (patch) | |
tree | 06fdd6df35fdb835abdaa9b754d62f6b84b97250 /drivers/input/joystick/grip_mp.c | |
parent | bd787d438a59266af3c9f6351644c85ef1dd21fe (diff) | |
parent | ed28f96ac1960f30f818374d65be71d2fdf811b0 (diff) |
Merge ../linux-2.6 by hand
Diffstat (limited to 'drivers/input/joystick/grip_mp.c')
-rw-r--r-- | drivers/input/joystick/grip_mp.c | 150 |
1 files changed, 88 insertions, 62 deletions
diff --git a/drivers/input/joystick/grip_mp.c b/drivers/input/joystick/grip_mp.c index da17eee6f57..51a912222e8 100644 --- a/drivers/input/joystick/grip_mp.c +++ b/drivers/input/joystick/grip_mp.c @@ -19,6 +19,7 @@ #include <linux/input.h> #include <linux/delay.h> #include <linux/proc_fs.h> +#include <linux/jiffies.h> #define DRIVER_DESC "Gravis Grip Multiport driver" @@ -32,23 +33,37 @@ MODULE_LICENSE("GPL"); #define dbg(format, arg...) do {} while (0) #endif +#define GRIP_MAX_PORTS 4 /* * Grip multiport state */ +struct grip_port { + struct input_dev *dev; + int mode; + int registered; + + /* individual gamepad states */ + int buttons; + int xaxes; + int yaxes; + int dirty; /* has the state been updated? */ +}; + struct grip_mp { struct gameport *gameport; - struct input_dev dev[4]; - int mode[4]; - int registered[4]; + struct grip_port *port[GRIP_MAX_PORTS]; +// struct input_dev *dev[4]; +// int mode[4]; +// int registered[4]; int reads; int bads; /* individual gamepad states */ - int buttons[4]; - int xaxes[4]; - int yaxes[4]; - int dirty[4]; /* has the state been updated? */ +// int buttons[4]; +// int xaxes[4]; +// int yaxes[4]; +// int dirty[4]; /* has the state been updated? */ }; /* @@ -85,16 +100,16 @@ struct grip_mp { #define GRIP_MODE_GP 2 #define GRIP_MODE_C64 3 -static int grip_btn_gp[] = { BTN_TR, BTN_TL, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, -1 }; -static int grip_btn_c64[] = { BTN_JOYSTICK, -1 }; +static const int grip_btn_gp[] = { BTN_TR, BTN_TL, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, -1 }; +static const int grip_btn_c64[] = { BTN_JOYSTICK, -1 }; -static int grip_abs_gp[] = { ABS_X, ABS_Y, -1 }; -static int grip_abs_c64[] = { ABS_X, ABS_Y, -1 }; +static const int grip_abs_gp[] = { ABS_X, ABS_Y, -1 }; +static const int grip_abs_c64[] = { ABS_X, ABS_Y, -1 }; -static int *grip_abs[] = { NULL, NULL, grip_abs_gp, grip_abs_c64 }; -static int *grip_btn[] = { NULL, NULL, grip_btn_gp, grip_btn_c64 }; +static const int *grip_abs[] = { NULL, NULL, grip_abs_gp, grip_abs_c64 }; +static const int *grip_btn[] = { NULL, NULL, grip_btn_gp, grip_btn_c64 }; -static char *grip_name[] = { NULL, NULL, "Gravis Grip Pad", "Commodore 64 Joystick" }; +static const char *grip_name[] = { NULL, NULL, "Gravis Grip Pad", "Commodore 64 Joystick" }; static const int init_seq[] = { 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, @@ -104,9 +119,9 @@ static const int init_seq[] = { /* Maps multiport directional values to X,Y axis values (each axis encoded in 3 bits) */ -static int axis_map[] = { 5, 9, 1, 5, 6, 10, 2, 6, 4, 8, 0, 4, 5, 9, 1, 5 }; +static const int axis_map[] = { 5, 9, 1, 5, 6, 10, 2, 6, 4, 8, 0, 4, 5, 9, 1, 5 }; -static void register_slot(int i, struct grip_mp *grip); +static int register_slot(int i, struct grip_mp *grip); /* * Returns whether an odd or even number of bits are on in pkt. @@ -353,9 +368,10 @@ static int dig_mode_start(struct gameport *gameport, u32 *packet) static int get_and_decode_packet(struct grip_mp *grip, int flags) { + struct grip_port *port; u32 packet; int joytype = 0; - int slot = 0; + int slot; /* Get a packet and check for validity */ @@ -377,6 +393,8 @@ static int get_and_decode_packet(struct grip_mp *grip, int flags) if ((slot < 0) || (slot > 3)) return flags; + port = grip->port[slot]; + /* * Handle "reset" packets, which occur at startup, and when gamepads * are removed or plugged in. May contain configuration of a new gamepad. @@ -385,14 +403,14 @@ static int get_and_decode_packet(struct grip_mp *grip, int flags) joytype = (packet >> 16) & 0x1f; if (!joytype) { - if (grip->registered[slot]) { + if (port->registered) { printk(KERN_INFO "grip_mp: removing %s, slot %d\n", - grip_name[grip->mode[slot]], slot); - input_unregister_device(grip->dev + slot); - grip->registered[slot] = 0; + grip_name[port->mode], slot); + input_unregister_device(port->dev); + port->registered = 0; } dbg("Reset: grip multiport slot %d\n", slot); - grip->mode[slot] = GRIP_MODE_RESET; + port->mode = GRIP_MODE_RESET; flags |= IO_SLOT_CHANGE; return flags; } @@ -402,17 +420,17 @@ static int get_and_decode_packet(struct grip_mp *grip, int flags) if (joytype == 0x1f) { int dir = (packet >> 8) & 0xf; /* eight way directional value */ - grip->buttons[slot] = (~packet) & 0xff; - grip->yaxes[slot] = ((axis_map[dir] >> 2) & 3) - 1; - grip->xaxes[slot] = (axis_map[dir] & 3) - 1; - grip->dirty[slot] = 1; + port->buttons = (~packet) & 0xff; + port->yaxes = ((axis_map[dir] >> 2) & 3) - 1; + port->xaxes = (axis_map[dir] & 3) - 1; + port->dirty = 1; - if (grip->mode[slot] == GRIP_MODE_RESET) + if (port->mode == GRIP_MODE_RESET) flags |= IO_SLOT_CHANGE; - grip->mode[slot] = GRIP_MODE_GP; + port->mode = GRIP_MODE_GP; - if (!grip->registered[slot]) { + if (!port->registered) { dbg("New Grip pad in multiport slot %d.\n", slot); register_slot(slot, grip); } @@ -445,9 +463,9 @@ static int slots_valid(struct grip_mp *grip) return 0; for (slot = 0; slot < 4; slot++) { - if (grip->mode[slot] == GRIP_MODE_RESET) + if (grip->port[slot]->mode == GRIP_MODE_RESET) invalid = 1; - if (grip->mode[slot] != GRIP_MODE_NONE) + if (grip->port[slot]->mode != GRIP_MODE_NONE) active = 1; } @@ -484,7 +502,7 @@ static int multiport_init(struct grip_mp *grip) /* Get packets, store multiport state, and check state's validity */ for (tries = 0; tries < 4096; tries++) { - if ( slots_valid(grip) ) { + if (slots_valid(grip)) { initialized = 1; break; } @@ -499,24 +517,24 @@ static int multiport_init(struct grip_mp *grip) static void report_slot(struct grip_mp *grip, int slot) { - struct input_dev *dev = &(grip->dev[slot]); - int i, buttons = grip->buttons[slot]; + struct grip_port *port = grip->port[slot]; + int i; /* Store button states with linux input driver */ for (i = 0; i < 8; i++) - input_report_key(dev, grip_btn_gp[i], (buttons >> i) & 1); + input_report_key(port->dev, grip_btn_gp[i], (port->buttons >> i) & 1); /* Store axis states with linux driver */ - input_report_abs(dev, ABS_X, grip->xaxes[slot]); - input_report_abs(dev, ABS_Y, grip->yaxes[slot]); + input_report_abs(port->dev, ABS_X, port->xaxes); + input_report_abs(port->dev, ABS_Y, port->yaxes); /* Tell the receiver of the events to process them */ - input_sync(dev); + input_sync(port->dev); - grip->dirty[slot] = 0; + port->dirty = 0; } /* @@ -540,7 +558,7 @@ static void grip_poll(struct gameport *gameport) } for (i = 0; i < 4; i++) - if (grip->dirty[i]) + if (grip->port[i]->dirty) report_slot(grip, i); } @@ -571,35 +589,43 @@ static void grip_close(struct input_dev *dev) * Tell the linux input layer about a newly plugged-in gamepad. */ -static void register_slot(int slot, struct grip_mp *grip) +static int register_slot(int slot, struct grip_mp *grip) { + struct grip_port *port = grip->port[slot]; + struct input_dev *input_dev; int j, t; - grip->dev[slot].private = grip; - grip->dev[slot].open = grip_open; - grip->dev[slot].close = grip_close; - grip->dev[slot].name = grip_name[grip->mode[slot]]; - grip->dev[slot].id.bustype = BUS_GAMEPORT; - grip->dev[slot].id.vendor = GAMEPORT_ID_VENDOR_GRAVIS; - grip->dev[slot].id.product = 0x0100 + grip->mode[slot]; - grip->dev[slot].id.version = 0x0100; - grip->dev[slot].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); + port->dev = input_dev = input_allocate_device(); + if (!input_dev) + return -ENOMEM; + + input_dev->name = grip_name[port->mode]; + input_dev->id.bustype = BUS_GAMEPORT; + input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS; + input_dev->id.product = 0x0100 + port->mode; + input_dev->id.version = 0x0100; + input_dev->cdev.dev = &grip->gameport->dev; + input_dev->private = grip; + + input_dev->open = grip_open; + input_dev->close = grip_close; - for (j = 0; (t = grip_abs[grip->mode[slot]][j]) >= 0; j++) - input_set_abs_params(&grip->dev[slot], t, -1, 1, 0, 0); + input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); - for (j = 0; (t = grip_btn[grip->mode[slot]][j]) >= 0; j++) + for (j = 0; (t = grip_abs[port->mode][j]) >= 0; j++) + input_set_abs_params(input_dev, t, -1, 1, 0, 0); + + for (j = 0; (t = grip_btn[port->mode][j]) >= 0; j++) if (t > 0) - set_bit(t, grip->dev[slot].keybit); + set_bit(t, input_dev->keybit); - input_register_device(grip->dev + slot); - grip->registered[slot] = 1; + input_register_device(port->dev); + port->registered = 1; - if (grip->dirty[slot]) /* report initial state, if any */ + if (port->dirty) /* report initial state, if any */ report_slot(grip, slot); - printk(KERN_INFO "grip_mp: added %s, slot %d\n", - grip_name[grip->mode[slot]], slot); + return 0; } static int grip_connect(struct gameport *gameport, struct gameport_driver *drv) @@ -626,7 +652,7 @@ static int grip_connect(struct gameport *gameport, struct gameport_driver *drv) goto fail2; } - if (!grip->mode[0] && !grip->mode[1] && !grip->mode[2] && !grip->mode[3]) { + if (!grip->port[0]->mode && !grip->port[1]->mode && !grip->port[2]->mode && !grip->port[3]->mode) { /* nothing plugged in */ err = -ENODEV; goto fail2; @@ -646,8 +672,8 @@ static void grip_disconnect(struct gameport *gameport) int i; for (i = 0; i < 4; i++) - if (grip->registered[i]) - input_unregister_device(grip->dev + i); + if (grip->port[i]->registered) + input_unregister_device(grip->port[i]->dev); gameport_close(gameport); gameport_set_drvdata(gameport, NULL); kfree(grip); |