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EmbeddedPkg/Drivers: add virtual keyboard driver

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This driver is used to simulate a keyboard. For example, user
could read GPIO setting or data from RAM address. If the value
matches the expected pattern, it could trigger a key pressed
event.

User needs to implement hooks of PLATFORM_VIRTUAL_KBD_PROTOCOL.
There're 4 hooks in this protocol.
Register(): Quote the interface that user needs. For example, user
needs to locate GPIO protocol if he wants to simulate a GPIO value
as a key.
Reset(): Do the initialization before reading value.
Query(): Read value. If the value matches the expected pattern,
trigger a key pressed event.
Clear(): Clean the value if necessary.

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Haojian Zhuang
2018-03-08 21:28:22 +08:00
committed by Leif Lindholm
parent 8fe18cba76
commit 1df5fb2d83
7 changed files with 2161 additions and 0 deletions
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EmbeddedPkg/EmbeddedPkg.dec
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@@ -82,6 +82,7 @@
gAndroidFastbootPlatformProtocolGuid = { 0x524685a0, 0x89a0, 0x11e3, {0x9d, 0x4d, 0xbf, 0xa9, 0xf6, 0xa4, 0x03, 0x08}}
gUsbDeviceProtocolGuid = { 0x021bd2ca, 0x51d2, 0x11e3, {0x8e, 0x56, 0xb7, 0x54, 0x17, 0xc7, 0x0b, 0x44 }}
gPlatformGpioProtocolGuid = { 0x52ce9845, 0x5af4, 0x43e2, {0xba, 0xfd, 0x23, 0x08, 0x12, 0x54, 0x7a, 0xc2 }}
gPlatformVirtualKeyboardProtocolGuid = { 0x0e3606d2, 0x1dc3, 0x4e6f, { 0xbe, 0x65, 0x39, 0x49, 0x82, 0xa2, 0x65, 0x47 }}
gAndroidBootImgProtocolGuid = { 0x9859bb19, 0x407c, 0x4f8b, {0xbc, 0xe1, 0xf8, 0xda, 0x65, 0x65, 0xf4, 0xa5 }}
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