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Kernel
提交 d38fcb96 编写于 作者: D Dmitry Torokhov
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Input: gamecon - fix some formatting issues 

Fix formatting of 'switch' statements and change the code to stay closer
to 80 column limit where it does not hurt code readability.
Tested-by: NScott Moreau <oreaus@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
上级 7aa9e0e8
隐藏空白更改
内联 并排
Showing with 194 addition and 153 deletion
drivers/input/joystick/gamecon.c
浏览文件 @ d38fcb96
......@@ -93,15 +93,21 @@ static struct gc *gc_base[3];
static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
"Multisystem 2-button joystick", "N64 controller", "PSX controller",
"PSX DDR controller", "SNES mouse" };
static char *gc_names[] = {
NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
"Multisystem 2-button joystick", "N64 controller", "PSX controller",
"PSX DDR controller", "SNES mouse"
};
/*
* N64 support.
*/
static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
static short gc_n64_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START };
static short gc_n64_btn[] = {
BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,
BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START
};
#define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
#define GC_N64_STOP_LENGTH 5 /* Length of encoded stop bit */
......@@ -157,7 +163,8 @@ static void gc_n64_send_stop_bit(struct gc *gc, unsigned char target)
/*
* gc_n64_read_packet() reads an N64 packet.
* Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
* Each pad uses one bit per byte. So all pads connected to this port
* are read in parallel.
*/
static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
......@@ -175,7 +182,8 @@ static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
local_irq_restore(flags);
/*
* Wait for the pad response to be loaded into the 33-bit register of the adapter
* Wait for the pad response to be loaded into the 33-bit register
* of the adapter.
*/
udelay(GC_N64_DELAY);
......@@ -192,8 +200,9 @@ static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
}
/*
* We must wait 200 ms here for the controller to reinitialize before the next read request.
* No worries as long as gc_read is polled less frequently than this.
* We must wait 200 ms here for the controller to reinitialize before
* the next read request. No worries as long as gc_read is polled less
* frequently than this.
*/
}
......@@ -201,9 +210,9 @@ static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
static void gc_n64_process_packet(struct gc *gc)
{
unsigned char data[GC_N64_LENGTH];
signed char axes[2];
struct input_dev *dev;
int i, j, s;
signed char x, y;
gc_n64_read_packet(gc, data);
......@@ -217,23 +226,26 @@ static void gc_n64_process_packet(struct gc *gc)
if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
axes[0] = axes[1] = 0;
x = y = 0;
for (j = 0; j < 8; j++) {
if (data[23 - j] & s)
axes[0] |= 1 << j;
x |= 1 << j;
if (data[31 - j] & s)
axes[1] |= 1 << j;
y |= 1 << j;
}
input_report_abs(dev, ABS_X, axes[0]);
input_report_abs(dev, ABS_Y, -axes[1]);
input_report_abs(dev, ABS_X, x);
input_report_abs(dev, ABS_Y, -y);
input_report_abs(dev, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
input_report_abs(dev, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
input_report_abs(dev, ABS_HAT0X,
!(s & data[6]) - !(s & data[7]));
input_report_abs(dev, ABS_HAT0Y,
!(s & data[4]) - !(s & data[5]));
for (j = 0; j < 10; j++)
input_report_key(dev, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
input_report_key(dev, gc_n64_btn[j],
s & data[gc_n64_bytes[j]]);
input_sync(dev);
}
......@@ -321,7 +333,9 @@ static int __init gc_n64_init_ff(struct input_dev *dev, int i)
static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR };
static short gc_snes_btn[] = {
BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR
};
/*
* gc_nes_read_packet() reads a NES/SNES packet.
......@@ -373,16 +387,19 @@ static void gc_nes_process_packet(struct gc *gc)
if (s & gc->pads[GC_NES])
for (j = 0; j < 4; j++)
input_report_key(dev, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
input_report_key(dev, gc_snes_btn[j],
s & data[gc_nes_bytes[j]]);
if (s & gc->pads[GC_SNES])
for (j = 0; j < 8; j++)
input_report_key(dev, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
input_report_key(dev, gc_snes_btn[j],
s & data[gc_snes_bytes[j]]);
if (s & gc->pads[GC_SNESMOUSE]) {
/*
* The 4 unused bits from SNES controllers appear to be ID bits
* so use them to make sure iwe are dealing with a mouse.
* The 4 unused bits from SNES controllers appear
* to be ID bits so use them to make sure we are
* dealing with a mouse.
* gamepad is connected. This is important since
* my SNES gamepad sends 1's for bits 16-31, which
* cause the mouse pointer to quickly move to the
......@@ -445,10 +462,11 @@ static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
static void gc_multi_process_packet(struct gc *gc)
{
unsigned char data[GC_MULTI2_LENGTH];
int data_len = gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH;
struct input_dev *dev;
int i, s;
gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
gc_multi_read_packet(gc, data_len, data);
for (i = 0; i < GC_MAX_DEVICES; i++) {
......@@ -459,8 +477,10 @@ static void gc_multi_process_packet(struct gc *gc)
s = gc_status_bit[i];
if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
input_report_abs(dev, ABS_X, !(s & data[2]) - !(s & data[3]));
input_report_abs(dev, ABS_Y, !(s & data[0]) - !(s & data[1]));
input_report_abs(dev, ABS_X,
!(s & data[2]) - !(s & data[3]));
input_report_abs(dev, ABS_Y,
!(s & data[0]) - !(s & data[1]));
input_report_key(dev, BTN_TRIGGER, s & data[4]);
}
......@@ -503,9 +523,13 @@ static int gc_psx_delay = GC_PSX_DELAY;
module_param_named(psx_delay, gc_psx_delay, uint, 0);
MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
static short gc_psx_abs[] = {
ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y
};
static short gc_psx_btn[] = {
BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR
};
static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
/*
......@@ -513,18 +537,18 @@ static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
* the psx pad.
*/
static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_MAX_DEVICES])
static void gc_psx_command(struct gc *gc, int b, unsigned char *data)
{
struct parport *port = gc->pd->port;
int i, j, cmd, read;
for (i = 0; i < GC_MAX_DEVICES; i++)
data[i] = 0;
memset(data, 0, GC_MAX_DEVICES);
for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
cmd = (b & 1) ? GC_PSX_COMMAND : 0;
parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
parport_write_data(port, cmd | GC_PSX_POWER);
udelay(gc_psx_delay);
read = parport_read_status(gc->pd->port) ^ 0x80;
read = parport_read_status(port) ^ 0x80;
for (j = 0; j < GC_MAX_DEVICES; j++)
data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0;
parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
......@@ -544,24 +568,29 @@ static void gc_psx_read_packet(struct gc *gc, unsigned char data[GC_MAX_DEVICES]
unsigned long flags;
unsigned char data2[GC_MAX_DEVICES];
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
/* Select pad */
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
udelay(gc_psx_delay);
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */
/* Deselect, begin command */
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);
udelay(gc_psx_delay);
local_irq_save(flags);
gc_psx_command(gc, 0x01, data2); /* Access pad */
gc_psx_command(gc, 0x42, id); /* Get device ids */
gc_psx_command(gc, 0, data2); /* Dump status */
gc_psx_command(gc, 0x01, data2); /* Access pad */
gc_psx_command(gc, 0x42, id); /* Get device ids */
gc_psx_command(gc, 0, data2); /* Dump status */
for (i =0; i < GC_MAX_DEVICES; i++) /* Find the longest pad */
if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR]))
&& (GC_PSX_LEN(id[i]) > max_len)
&& (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES))
/* Find the longest pad */
for (i = 0; i < GC_MAX_DEVICES; i++)
if ((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) &&
GC_PSX_LEN(id[i]) > max_len &&
GC_PSX_LEN(id[i]) <= GC_PSX_BYTES) {
max_len = GC_PSX_LEN(id[i]);
}
for (i = 0; i < max_len; i++) { /* Read in all the data */
/* Read in all the data */
for (i = 0; i < max_len; i++) {
gc_psx_command(gc, 0, data2);
for (j = 0; j < GC_MAX_DEVICES; j++)
data[j][i] = data2[j];
......@@ -571,86 +600,99 @@ static void gc_psx_read_packet(struct gc *gc, unsigned char data[GC_MAX_DEVICES]
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
for(i = 0; i < GC_MAX_DEVICES; i++) /* Set id's to the real value */
/* Set id's to the real value */
for (i = 0; i < GC_MAX_DEVICES; i++)
id[i] = GC_PSX_ID(id[i]);
}
static void gc_psx_process_packet(struct gc *gc)
static void gc_psx_report_one(struct gc *gc, struct input_dev *dev,
unsigned char pad_type, unsigned char status_bit,
unsigned char *data)
{
unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
unsigned char id[GC_MAX_DEVICES];
struct input_dev *dev;
int i, j;
int i;
gc_psx_read_packet(gc, data, id);
switch (pad_type) {
for (i = 0; i < GC_MAX_DEVICES; i++) {
case GC_PSX_RUMBLE:
dev = gc->dev[i];
if (!dev)
continue;
input_report_key(dev, BTN_THUMBL, ~data[0] & 0x04);
input_report_key(dev, BTN_THUMBR, ~data[0] & 0x02);
switch (id[i]) {
case GC_PSX_NEGCON:
case GC_PSX_ANALOG:
case GC_PSX_RUMBLE:
if (gc->pads[GC_DDR] & status_bit) {
for (i = 0; i < 4; i++)
input_report_key(dev, gc_psx_ddr_btn[i],
~data[0] & (0x10 << i));
} else {
for (i = 0; i < 4; i++)
input_report_abs(dev, gc_psx_abs[i + 2],
data[i + 2]);
input_report_key(dev, BTN_THUMBL, ~data[i][0] & 0x04);
input_report_key(dev, BTN_THUMBR, ~data[i][0] & 0x02);
input_report_abs(dev, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
input_report_abs(dev, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[0] & 0x10) * 128);
}
case GC_PSX_NEGCON:
case GC_PSX_ANALOG:
for (i = 0; i < 8; i++)
input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
if (gc->pads[GC_DDR] & gc_status_bit[i]) {
for(j = 0; j < 4; j++)
input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
} else {
for (j = 0; j < 4; j++)
input_report_abs(dev, gc_psx_abs[j + 2], data[i][j + 2]);
input_report_key(dev, BTN_START, ~data[0] & 0x08);
input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
}
input_sync(dev);
for (j = 0; j < 8; j++)
input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
break;
input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
case GC_PSX_NORMAL:
if (gc->pads[GC_DDR] & status_bit) {
for (i = 0; i < 4; i++)
input_report_key(dev, gc_psx_ddr_btn[i],
~data[0] & (0x10 << i));
} else {
input_report_abs(dev, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
input_report_abs(dev, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[0] & 0x10) * 128);
input_sync(dev);
/*
* For some reason if the extra axes are left unset
* they drift.
* for (i = 0; i < 4; i++)
input_report_abs(dev, gc_psx_abs[i + 2], 128);
* This needs to be debugged properly,
* maybe fuzz processing needs to be done
* in input_sync()
* --vojtech
*/
}
break;
for (i = 0; i < 8; i++)
input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
case GC_PSX_NORMAL:
if (gc->pads[GC_DDR] & gc_status_bit[i]) {
for(j = 0; j < 4; j++)
input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
} else {
input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
input_report_key(dev, BTN_START, ~data[0] & 0x08);
input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
/* for some reason if the extra axes are left unset they drift */
/* for (j = 0; j < 4; j++)
input_report_abs(dev, gc_psx_abs[j + 2], 128);
* This needs to be debugged properly,
* maybe fuzz processing needs to be done in input_sync()
* --vojtech
*/
}
input_sync(dev);
break;
for (j = 0; j < 8; j++)
input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
case 0: /* not a pad, ignore */
break;
}
}
input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
static void gc_psx_process_packet(struct gc *gc)
{
unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
unsigned char id[GC_MAX_DEVICES];
int i;
input_sync(dev);
gc_psx_read_packet(gc, data, id);
break;
for (i = 0; i < GC_MAX_DEVICES; i++) {
case 0: /* not a pad, ignore */
break;
}
if (gc->dev[i])
gc_psx_report_one(gc, gc->dev[i],
id[i], gc_status_bit[i], data[i]);
}
}
......@@ -770,60 +812,61 @@ static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
switch (pad_type) {
case GC_N64:
for (i = 0; i < 10; i++)
set_bit(gc_n64_btn[i], input_dev->keybit);
for (i = 0; i < 2; i++) {
input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
}
err = gc_n64_init_ff(input_dev, idx);
if (err) {
printk(KERN_WARNING "gamecon.c: Failed to initiate rumble for N64 device %d\n", idx);
input_free_device(input_dev);
return err;
}
break;
case GC_SNESMOUSE:
set_bit(BTN_LEFT, input_dev->keybit);
set_bit(BTN_RIGHT, input_dev->keybit);
set_bit(REL_X, input_dev->relbit);
set_bit(REL_Y, input_dev->relbit);
break;
case GC_SNES:
for (i = 4; i < 8; i++)
set_bit(gc_snes_btn[i], input_dev->keybit);
case GC_NES:
for (i = 0; i < 4; i++)
set_bit(gc_snes_btn[i], input_dev->keybit);
break;
case GC_N64:
for (i = 0; i < 10; i++)
__set_bit(gc_n64_btn[i], input_dev->keybit);
case GC_MULTI2:
set_bit(BTN_THUMB, input_dev->keybit);
case GC_MULTI:
set_bit(BTN_TRIGGER, input_dev->keybit);
break;
case GC_PSX:
for (i = 0; i < 6; i++)
input_set_abs_params(input_dev, gc_psx_abs[i], 4, 252, 0, 2);
for (i = 0; i < 12; i++)
set_bit(gc_psx_btn[i], input_dev->keybit);
break;
for (i = 0; i < 2; i++) {
input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
}
case GC_DDR:
for (i = 0; i < 4; i++)
set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
for (i = 0; i < 12; i++)
set_bit(gc_psx_btn[i], input_dev->keybit);
err = gc_n64_init_ff(input_dev, idx);
if (err) {
printk(KERN_WARNING "gamecon.c: Failed to initiate rumble for N64 device %d\n", idx);
input_free_device(input_dev);
return err;
}
break;
break;
case GC_SNESMOUSE:
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(REL_X, input_dev->relbit);
__set_bit(REL_Y, input_dev->relbit);
break;
case GC_SNES:
for (i = 4; i < 8; i++)
__set_bit(gc_snes_btn[i], input_dev->keybit);
case GC_NES:
for (i = 0; i < 4; i++)
__set_bit(gc_snes_btn[i], input_dev->keybit);
break;
case GC_MULTI2:
__set_bit(BTN_THUMB, input_dev->keybit);
case GC_MULTI:
__set_bit(BTN_TRIGGER, input_dev->keybit);
break;
case GC_PSX:
for (i = 0; i < 6; i++)
input_set_abs_params(input_dev,
gc_psx_abs[i], 4, 252, 0, 2);
for (i = 0; i < 12; i++)
__set_bit(gc_psx_btn[i], input_dev->keybit);
break;
case GC_DDR:
for (i = 0; i < 4; i++)
__set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
for (i = 0; i < 12; i++)
__set_bit(gc_psx_btn[i], input_dev->keybit);
break;
}
return 0;
......@@ -860,9 +903,7 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
mutex_init(&gc->mutex);
gc->pd = pd;
init_timer(&gc->timer);
gc->timer.data = (long) gc;
gc->timer.function = gc_timer;
setup_timer(&gc->timer, gc_timer, (long) gc);
for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
if (!pads[i])
......
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