| Each HSI port is supposed to have one child node, which | |
| symbols the remote device connected to the HSI port. The | |
| following properties are standardized for HSI clients: | |
| Required HSI configuration properties: | |
| - hsi-channel-ids: A list of channel ids | |
| - hsi-rx-mode: Receiver Bit transmission mode ("stream" or "frame") | |
| - hsi-tx-mode: Transmitter Bit transmission mode ("stream" or "frame") | |
| - hsi-mode: May be used instead hsi-rx-mode and hsi-tx-mode if | |
| the transmission mode is the same for receiver and | |
| transmitter | |
| - hsi-speed-kbps: Max bit transmission speed in kbit/s | |
| - hsi-flow: RX flow type ("synchronized" or "pipeline") | |
| - hsi-arb-mode: Arbitration mode for TX frame ("round-robin", "priority") | |
| Optional HSI configuration properties: | |
| - hsi-channel-names: A list with one name per channel specified in the | |
| hsi-channel-ids property | |
| Device Tree node example for an HSI client: | |
| hsi-controller { | |
| hsi-port { | |
| modem: hsi-client { | |
| compatible = "nokia,n900-modem"; | |
| hsi-channel-ids = <0>, <1>, <2>, <3>; | |
| hsi-channel-names = "mcsaab-control", | |
| "speech-control", | |
| "speech-data", | |
| "mcsaab-data"; | |
| hsi-speed-kbps = <55000>; | |
| hsi-mode = "frame"; | |
| hsi-flow = "synchronized"; | |
| hsi-arb-mode = "round-robin"; | |
| /* more client specific properties */ | |
| }; | |
| }; | |
| }; |