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[ALSA] caiaq - misc input handling fixes 

- link input device with its parent so that it placed in proper spot
   in sysfs hierarchy
 - drivers that allow changing their keymaps should use private copy
   of the keymap so that one instance of a device does not affect
   another instance
 - it is preferred for drivers to properly set up input_dev->phys to
   help userspace locate devices
 - drivers should use usb_to_input_id(), or perform endianess conversion,
   themselves, otherwise ID is not correct on big-endian boxes
 - whitespace and formatting cleanup
Acked-by: Daniel Mack <daniel@caiaq.de>

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Dmitry Torokhov 2007-11-21 16:45:23 +01:00 committed by Jaroslav Kysela
parent ee6df2e184
commit b18b493f27
2 changed files with 71 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sound/usb/caiaq/caiaq-device.h
View File

@ -93,6 +93,8 @@ struct snd_usb_caiaqdev {
/* Linux input */
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
struct input_dev *input_dev;
char phys[64]; /* physical device path */
unsigned short keycode[10];
#endif
/* ALSA */

98
sound/usb/caiaq/caiaq-input.c
View File

@ -21,6 +21,7 @@
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/usb/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
@ -31,13 +32,13 @@
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7 };
static unsigned char keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
#define DEG90 (range/2)
#define DEG90 (range / 2)
#define DEG180 (range)
#define DEG270 (DEG90 + DEG180)
#define DEG360 (DEG180 * 2)
@ -56,7 +57,7 @@ static unsigned int decode_erp(unsigned char a, unsigned char b)
int range = HIGH_PEAK - LOW_PEAK;
int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
weight_b = abs(mid_value-a) - (range/2 - 100)/2;
weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
if (weight_b < 0)
weight_b = 0;
@ -112,18 +113,20 @@ static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
const unsigned char *buf,
unsigned int len)
{
switch(dev->input_dev->id.product) {
struct input_dev *input_dev = dev->input_dev;
switch (input_dev->id.product) {
case USB_PID_RIGKONTROL2:
input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]);
input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]);
input_sync(dev->input_dev);
input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
input_sync(input_dev);
break;
case USB_PID_RIGKONTROL3:
input_report_abs(dev->input_dev, ABS_X, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Y, (buf[2] << 8) |buf[3]);
input_report_abs(dev->input_dev, ABS_Z, (buf[4] << 8) |buf[5]);
input_sync(dev->input_dev);
input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
input_sync(input_dev);
break;
}
}
@ -131,13 +134,14 @@ static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
struct input_dev *input_dev = dev->input_dev;
int i;
switch(dev->input_dev->id.product) {
switch (input_dev->id.product) {
case USB_PID_AK1:
i = decode_erp(buf[0], buf[1]);
input_report_abs(dev->input_dev, ABS_X, i);
input_sync(dev->input_dev);
input_report_abs(input_dev, ABS_X, i);
input_sync(input_dev);
break;
}
}
@ -145,39 +149,40 @@ static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
char *buf, unsigned int len)
{
struct input_dev *input_dev = dev->input_dev;
unsigned short *keycode = input_dev->keycode;
int i;
unsigned char *keycode = dev->input_dev->keycode;
if (!keycode)
return;
if (dev->input_dev->id.product == USB_PID_RIGKONTROL2)
for (i=0; i<len; i++)
if (input_dev->id.product == USB_PID_RIGKONTROL2)
for (i = 0; i < len; i++)
buf[i] = ~buf[i];
for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++)
input_report_key(dev->input_dev, keycode[i],
buf[i/8] & (1 << (i%8)));
for (i = 0; i < input_dev->keycodemax && i < len; i++)
input_report_key(input_dev, keycode[i],
buf[i / 8] & (1 << (i % 8)));
input_sync(dev->input_dev);
input_sync(input_dev);
}
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
char *buf,
unsigned int len)
{
if (!dev->input_dev || (len < 1))
if (!dev->input_dev || len < 1)
return;
switch (buf[0]) {
case EP1_CMD_READ_ANALOG:
snd_caiaq_input_read_analog(dev, buf+1, len-1);
snd_caiaq_input_read_analog(dev, buf + 1, len - 1);
break;
case EP1_CMD_READ_ERP:
snd_caiaq_input_read_erp(dev, buf+1, len-1);
snd_caiaq_input_read_erp(dev, buf + 1, len - 1);
break;
case EP1_CMD_READ_IO:
snd_caiaq_input_read_io(dev, buf+1, len-1);
snd_caiaq_input_read_io(dev, buf + 1, len - 1);
break;
}
}
@ -192,37 +197,34 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
if (!input)
return -ENOMEM;
usb_make_path(usb_dev, dev->phys, sizeof(dev->phys));
strlcat(dev->phys, "/input0", sizeof(dev->phys));
input->name = dev->product_name;
input->id.bustype = BUS_USB;
input->id.vendor = usb_dev->descriptor.idVendor;
input->id.product = usb_dev->descriptor.idProduct;
input->id.version = usb_dev->descriptor.bcdDevice;
input->phys = dev->phys;
usb_to_input_id(usb_dev, &input->id);
input->dev.parent = &usb_dev->dev;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
BIT_MASK(ABS_Z);
input->keycode = keycode_rk2;
input->keycodesize = sizeof(char);
BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk2));
memcpy(dev->keycode, keycode_rk2, sizeof(keycode_rk2));
input->keycodemax = ARRAY_SIZE(keycode_rk2);
for (i=0; i<ARRAY_SIZE(keycode_rk2); i++)
set_bit(keycode_rk2[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z);
input->keycode = keycode_rk3;
input->keycodesize = sizeof(char);
BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk3));
memcpy(dev->keycode, keycode_rk3, sizeof(keycode_rk3));
input->keycodemax = ARRAY_SIZE(keycode_rk3);
for (i=0; i<ARRAY_SIZE(keycode_rk3); i++)
set_bit(keycode_rk3[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
@ -231,12 +233,9 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->absbit[0] = BIT_MASK(ABS_X);
input->keycode = keycode_ak1;
input->keycodesize = sizeof(char);
BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_ak1));
memcpy(dev->keycode, keycode_ak1, sizeof(keycode_ak1));
input->keycodemax = ARRAY_SIZE(keycode_ak1);
for (i=0; i<ARRAY_SIZE(keycode_ak1); i++)
set_bit(keycode_ak1[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
break;
@ -246,6 +245,11 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
return 0;
}
input->keycode = dev->keycode;
input->keycodesize = sizeof(unsigned short);
for (i = 0; i < input->keycodemax; i++)
__set_bit(dev->keycode[i], input->keybit);
ret = input_register_device(input);
if (ret < 0) {
input_free_device(input);