/
allegro_vcu.go
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/
allegro_vcu.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2021 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package builtin
// https://www.xilinx.com/support/documentation/ip_documentation/vcu/v1_2/pg252-vcu.pdf
// https://github.com/Xilinx/vcu-modules/
const allegroVcuSummary = `allows access to Allegro Video Code Unit`
// Xilinx offers IP for their devices to decode/encode video streams, by
// using /dev/allegroDecodeIP and /dev/allegroIP devices.
// These operations should be considered privileged since the driver
// assumes trusted input, therefore require manual connection.
const allegroVcuBaseDeclarationSlots = `
allegro-vcu:
allow-installation:
slot-snap-type:
- core
deny-auto-connection: true
`
const allegroVcuConnectedPlugAppArmor = `
# Description: Can access the Allegro Video Core Unit, using a kernel
# module which directly controls hardware on the device.
/dev/allegroDecodeIP rw,
/dev/allegroIP rw,
/dev/dmaproxy rw,
`
var allegroVcuConnectedPlugUDev = []string{
`SUBSYSTEM=="allegro_decode_class", KERNEL=="allegroDecodeIP"`,
`SUBSYSTEM=="allegro_encode_class", KERNEL=="allegroIP"`,
`SUBSYSTEM=="char", KERNEL=="dmaproxy"`,
}
func init() {
registerIface(&commonInterface{
name: "allegro-vcu",
summary: allegroVcuSummary,
implicitOnCore: true,
implicitOnClassic: true,
baseDeclarationSlots: allegroVcuBaseDeclarationSlots,
connectedPlugAppArmor: allegroVcuConnectedPlugAppArmor,
connectedPlugUDev: allegroVcuConnectedPlugUDev,
})
}