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linux: Distinguish between "device with keys" and a full keyboard

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udev distinguishes between ID_INPUT_KEY, a device with any keyboard keys
at all (including for example USB numeric keypads, Bluetooth headsets
with volume control buttons, and some game controllers; and
ID_INPUT_KEYBOARD, a reasonably fully-featured keyboard that you could
use for general-purpose text entry. If we do the same here, then it's
useful input to our heuristics for identifying devices: for example,
a device with ID_INPUT_KEY could reasonably be a gamepad, but a device
with ID_INPUT_KEYBOARD certainly isn't.

Resolves: https://github.com/libsdl-org/SDL/issues/7827
Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2023-06-16 14:53:29 +01:00 • committed by Sam Lantinga
parent 9b7a9ca666
commit fa0ca3d41e
5 changed files with 36 additions and 31 deletions
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46
test/testevdev.c
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@ -48,6 +48,7 @@ static const struct
}
CLS(MOUSE),
CLS(KEYBOARD),
CLS(HAS_KEYS),
CLS(JOYSTICK),
CLS(SOUND),
CLS(TOUCHSCREEN),
@ -351,7 +352,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x045e,
.product_id = 0x0b22,
.version = 0x0517,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, ABS, FF */
.ev = { 0x0b, 0x00, 0x20 },
/* Android-style mapping:
@ -638,7 +639,8 @@ static const GuessTest guess_tests[] =
.bus_type = 0x0003,
.vendor_id = 0x28de,
.product_id = 0x1142,
.expected = (SDL_UDEV_DEVICE_KEYBOARD
.expected = (SDL_UDEV_DEVICE_HAS_KEYS
| SDL_UDEV_DEVICE_KEYBOARD
| SDL_UDEV_DEVICE_MOUSE),
/* SYN, KEY, REL, MSC, LED, REP */
.ev = { 0x17, 0x00, 0x12 },
@ -1087,7 +1089,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x045e,
.product_id = 0x02e0,
.version = 0x0903,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, ABS, MSC, FF */
.ev = { 0x1b, 0x00, 0x20 },
/* X, Y, Z, RX, RY, RZ, HAT0X, HAT0Y */
@ -1132,7 +1134,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x18d1,
.product_id = 0x9400,
.version = 0x0100,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_HAS_KEYS,
.ev = { 0x0b },
/* XYZ, RZ, gas, brake, hat0 */
.abs = { 0x27, 0x06, 0x03 },
@ -1166,7 +1168,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x045e,
.product_id = 0x0b12,
.version = 0x050f,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_HAS_KEYS,
.ev = { 0x0b },
/* X, Y, Z, RX, RY, RZ, hat 0 */
.abs = { 0x3f, 0x00, 0x03 },
@ -1189,7 +1191,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x045e,
.product_id = 0x0b13,
.version = 0x0515,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_JOYSTICK | SDL_UDEV_DEVICE_HAS_KEYS,
.ev = { 0x0b },
/* XYZ, RZ, gas, brake, hat0 */
.abs = { 0x27, 0x06, 0x03 },
@ -1214,8 +1216,8 @@ static const GuessTest guess_tests[] =
/* This one is a bit weird because some of the buttons are mapped
* to the arrow, page up and page down keys, so it's a joystick
* with a subset of a keyboard attached. */
/* TODO: Should this be JOYSTICK, or even JOYSTICK|KEYBOARD? */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
/* TODO: Should this be JOYSTICK, or even JOYSTICK|HAS_KEYS? */
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, FF */
.ev = { 0x03, 0x00, 0x20 },
.keys = {
@ -1296,9 +1298,9 @@ static const GuessTest guess_tests[] =
{
.name = "Wiimote - Classic Controller",
.eviocgname = "Nintendo Wii Remote Classic Controller",
/* TODO: Should this be JOYSTICK, or maybe JOYSTICK|KEYBOARD?
/* TODO: Should this be JOYSTICK, or maybe JOYSTICK|HAS_KEYS?
* It's unusual in the same ways as the Wiimote */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, ABS */
.ev = { 0x0b },
/* Hat 1-3 X and Y */
@ -1422,8 +1424,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x17aa,
.product_id = 0x5054,
.version = 0x4101,
/* SDL treats this as a keyboard because it has a power button */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, MSC, SW */
.ev = { 0x33 },
.keys = {
@ -1446,7 +1447,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x17aa,
.product_id = 0x5054,
.version = 0x4101,
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, MSC, SW */
.ev = { 0x33 },
.keys = {
@ -1507,7 +1508,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x0001,
.product_id = 0x0001,
.version = 0xab54,
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS | SDL_UDEV_DEVICE_KEYBOARD,
/* SYN, KEY, MSC, LED, REP */
.ev = { 0x13, 0x00, 0x12 },
.keys = {
@ -1524,8 +1525,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x0000,
.product_id = 0x0003,
.version = 0x0000,
/* SDL treats KEY_SLEEP as indicating a keyboard */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY */
.ev = { 0x03 },
.keys = {
@ -1553,8 +1553,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x0000,
.product_id = 0x0001,
.version = 0x0000,
/* SDL treats KEY_POWER as indicating a keyboard */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY */
.ev = { 0x03 },
.keys = {
@ -1570,8 +1569,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x0000,
.product_id = 0x0006,
.version = 0x0000,
/* SDL treats brightness control, etc. as keyboard keys */
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY */
.ev = { 0x03 },
.keys = {
@ -1591,7 +1589,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x04f2,
.product_id = 0xb604,
.version = 0x0027,
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY */
.ev = { 0x03 },
.keys = {
@ -1608,7 +1606,7 @@ static const GuessTest guess_tests[] =
.vendor_id = 0x17aa,
.product_id = 0x5054,
.version = 0x4101,
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY */
.ev = { 0x03 },
.keys = {
@ -1632,7 +1630,7 @@ static const GuessTest guess_tests[] =
.bus_type = 0x0003,
.vendor_id = 0x17ef,
.product_id = 0x6009,
.expected = SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_HAS_KEYS | SDL_UDEV_DEVICE_KEYBOARD,
/* SYN, KEY, MSC, LED, REP */
.ev = { 0x13, 0x00, 0x12 },
.keys = {
@ -1656,7 +1654,7 @@ static const GuessTest guess_tests[] =
/* For some reason the special keys like mute and wlan toggle
* show up here instead of, or in addition to, as part of
* the keyboard - so both udev and SDL report this as having keys too. */
.expected = SDL_UDEV_DEVICE_MOUSE | SDL_UDEV_DEVICE_KEYBOARD,
.expected = SDL_UDEV_DEVICE_MOUSE | SDL_UDEV_DEVICE_HAS_KEYS,
/* SYN, KEY, REL, MSC, LED */
.ev = { 0x17, 0x00, 0x02 },
/* X, Y */