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input: support analog read
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@937 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz
parent
23bfd0f2cc
commit
76bc7a1d9a
1 changed files with 58 additions and 13 deletions
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@ -22,10 +22,12 @@
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#include "../common/input.h"
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#include "in_evdev.h"
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#define MAX_ABS_DEVS 8
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typedef struct {
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int fd;
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int *kbits;
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int abs_min_x;
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int abs_min_x; /* abs->digital mapping */
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int abs_max_x;
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int abs_min_y;
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int abs_max_y;
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@ -34,6 +36,10 @@ typedef struct {
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int abs_lasty;
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int kc_first;
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int kc_last;
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unsigned int abs_count;
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/* 16.16 multiplier to IN_ABS_RANGE */
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unsigned int abs_mult[MAX_ABS_DEVS];
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unsigned int abs_to_digital:1;
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} in_evdev_t;
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#ifndef KEY_CNT
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@ -154,7 +160,7 @@ static void in_evdev_probe(void)
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for (i = 0;; i++)
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{
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int support = 0, count = 0;
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int u, ret, fd, kc_first = KEY_MAX, kc_last = 0;
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int u, ret, fd, kc_first = KEY_MAX, kc_last = 0, have_abs = 0;
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in_evdev_t *dev;
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char name[64];
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@ -195,9 +201,6 @@ static void in_evdev_probe(void)
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}
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}
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if (count == 0 && !in_evdev_allow_abs_only)
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goto skip;
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dev = calloc(1, sizeof(*dev));
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if (dev == NULL)
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goto skip;
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@ -236,10 +239,20 @@ static void in_evdev_probe(void)
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dev->abs_min_y = ainfo.minimum;
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dev->abs_max_y = ainfo.maximum;
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}
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for (u = 0; u < MAX_ABS_DEVS; u++) {
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ret = ioctl(fd, EVIOCGABS(u), &ainfo);
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if (ret == -1)
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break;
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dist = ainfo.maximum - ainfo.minimum;
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if (dist != 0)
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dev->abs_mult[u] = IN_ABS_RANGE * 2 * 65536 / dist;
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have_abs = 1;
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}
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dev->abs_count = u;
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}
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no_abs:
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if (count == 0 && dev->abs_lzone == 0) {
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if (count == 0 && !have_abs) {
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free(dev);
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goto skip;
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}
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@ -247,6 +260,8 @@ no_abs:
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dev->fd = fd;
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dev->kc_first = kc_first;
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dev->kc_last = kc_last;
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if (count > 0 || in_evdev_allow_abs_only)
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dev->abs_to_digital = 1;
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strcpy(name, IN_EVDEV_PREFIX);
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ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
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printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
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@ -327,14 +342,12 @@ static int in_evdev_update(void *drv_data, const int *binds, int *result)
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/* map X and Y absolute to UDLR */
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lzone = dev->abs_lzone;
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if (lzone != 0) {
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if (dev->abs_to_digital && lzone != 0) {
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ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
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if (ret != -1) {
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if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
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if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
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}
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}
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if (lzone != 0) {
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ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
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if (ret != -1) {
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if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
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@ -345,6 +358,23 @@ static int in_evdev_update(void *drv_data, const int *binds, int *result)
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return 0;
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}
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static int in_evdev_update_analog(void *drv_data, int axis_id, int *result)
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{
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struct input_absinfo ainfo;
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in_evdev_t *dev = drv_data;
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int ret;
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if ((unsigned int)axis_id >= MAX_ABS_DEVS)
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return -1;
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ret = ioctl(dev->fd, EVIOCGABS(axis_id), &ainfo);
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if (ret != 0)
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return ret;
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*result = (int)(ainfo.value * dev->abs_mult[axis_id]) >> 16;
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return 0;
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}
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static int in_evdev_set_blocking(in_evdev_t *dev, int y)
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{
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long flags;
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@ -378,6 +408,21 @@ static int in_evdev_set_blocking(in_evdev_t *dev, int y)
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return 0;
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}
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static int in_evdev_get_config(void *drv_data, int what, int *val)
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{
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in_evdev_t *dev = drv_data;
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switch (what) {
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case IN_CFG_ABS_AXIS_COUNT:
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*val = dev->abs_count;
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break;
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default:
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return -1;
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}
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return 0;
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}
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static int in_evdev_set_config(void *drv_data, int what, int val)
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{
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in_evdev_t *dev = drv_data;
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@ -430,7 +475,7 @@ static int in_evdev_update_keycode(void *data, int *is_down)
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ret_down = ev.value;
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goto out;
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}
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else if (ev.type == EV_ABS)
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else if (ev.type == EV_ABS && dev->abs_to_digital)
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{
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int lzone = dev->abs_lzone, down = 0, *last;
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@ -565,11 +610,9 @@ static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
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// memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
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}
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if (dev->abs_lzone != 0) {
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if (dev->abs_to_digital && dev->abs_lzone != 0) {
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KEYBITS_BIT_SET(KEY_LEFT);
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KEYBITS_BIT_SET(KEY_RIGHT);
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}
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if (dev->abs_lzone != 0) {
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KEYBITS_BIT_SET(KEY_UP);
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KEYBITS_BIT_SET(KEY_DOWN);
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}
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@ -594,8 +637,10 @@ static const in_drv_t in_evdev_drv = {
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.get_key_names = in_evdev_get_key_names,
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.get_def_binds = in_evdev_get_def_binds,
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.clean_binds = in_evdev_clean_binds,
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.get_config = in_evdev_get_config,
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.set_config = in_evdev_set_config,
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.update = in_evdev_update,
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.update_analog = in_evdev_update_analog,
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.update_keycode = in_evdev_update_keycode,
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.menu_translate = in_evdev_menu_translate,
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};
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