mirror of
https://gitlab.com/asus-linux/asusctl.git
synced 2026-01-22 09:23:19 +01:00
129 lines
3.0 KiB
Rust
129 lines
3.0 KiB
Rust
//! Utils for writing to the `Slash` USB device
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//!
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//! Use of the device requires a few steps:
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//! 1. Initialise the device by writing the two packets from
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//! `get_init_packets()` 2. Write data from `SLashPacketType`
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//! 3. Write the packet from `get_flush_packet()`, which tells the device to
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//! display the data from step 2
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//!
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//! Step 1 needs to be applied only on fresh system boot.
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use dmi_id::DMIID;
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#[cfg(feature = "dbus")]
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use crate::error::SlashError;
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use crate::{SlashMode, SlashType};
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const PACKET_SIZE: usize = 128;
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const DEV_PAGE: u8 = 0x5e;
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pub const VENDOR_ID: u16 = 0x0b05;
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pub const PROD_ID: u16 = 0x193b;
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pub const PROD_ID_STR: &str = "193B";
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pub type SlashUsbPacket = [u8; PACKET_SIZE];
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/// `get_anime_type` is very broad, matching on part of the laptop board name
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/// only. For this reason `find_node()` must be used also to verify if the USB
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/// device is available.
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///
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/// The currently known USB device is `193B`.
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#[inline]
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pub fn get_slash_type() -> Result<SlashType, SlashError> {
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let dmi = DMIID::new().map_err(|_| SlashError::NoDevice)?; // TODO: better error
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let board_name = dmi.board_name;
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if board_name.contains("GA403") {
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return Ok(SlashType::GA403);
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}
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Ok(SlashType::Unsupported)
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}
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/// Get the two device initialization packets. These are required for device
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/// start after the laptop boots.
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#[inline]
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pub const fn pkts_for_init() -> [SlashUsbPacket; 2] {
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let mut pkt1 = [0; PACKET_SIZE];
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pkt1[0] = DEV_PAGE;
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pkt1[1] = 0xd7;
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pkt1[2] = 0x00;
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pkt1[3] = 0x00;
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pkt1[4] = 0x01;
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pkt1[5] = 0xac;
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let mut pkt2 = [0; PACKET_SIZE];
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pkt2[0] = DEV_PAGE;
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pkt2[1] = 0xd2;
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pkt2[2] = 0x02;
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pkt2[3] = 0x01;
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pkt2[4] = 0x08;
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pkt2[5] = 0xab;
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[pkt1, pkt2]
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}
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#[inline]
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pub const fn pkt_save() -> SlashUsbPacket {
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let mut pkt = [0; PACKET_SIZE];
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pkt[0] = DEV_PAGE;
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pkt[1] = 0xd4;
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pkt[2] = 0x00;
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pkt[3] = 0x00;
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pkt[4] = 0x01;
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pkt[5] = 0xab;
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pkt
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}
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#[inline]
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pub const fn pkt_set_mode(mode: SlashMode) -> [SlashUsbPacket; 2] {
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let mut pkt1 = [0; PACKET_SIZE];
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pkt1[0] = DEV_PAGE;
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pkt1[1] = 0x02;
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pkt1[2] = 0x03;
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pkt1[3] = 0x00;
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pkt1[4] = 0x0c;
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let mut pkt2 = [0; PACKET_SIZE];
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pkt2[0] = DEV_PAGE;
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pkt2[1] = 0xd3;
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pkt2[2] = 0x04;
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pkt2[3] = 0x00;
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pkt2[4] = 0x0c;
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pkt2[5] = 0x01;
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pkt2[6] = mode as u8;
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pkt2[7] = 0x02;
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pkt2[8] = 0x19;
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pkt2[9] = 0x03;
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pkt2[10] = 0x13;
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pkt2[11] = 0x04;
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pkt2[12] = 0x11;
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pkt2[13] = 0x05;
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pkt2[14] = 0x12;
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pkt2[15] = 0x06;
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pkt2[16] = 0x13;
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[pkt1, pkt2]
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}
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#[inline]
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pub const fn pkt_set_options(enabled: bool, brightness: u8, interval: u8) -> SlashUsbPacket {
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let status_byte = if enabled { 0x01 } else { 0x00 };
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let mut pkt = [0; PACKET_SIZE];
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pkt[0] = DEV_PAGE;
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pkt[1] = 0xd3;
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pkt[2] = 0x03;
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pkt[3] = 0x01;
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pkt[4] = 0x08;
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pkt[5] = 0xab;
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pkt[6] = 0xff;
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pkt[7] = 0x01;
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pkt[8] = status_byte;
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pkt[9] = 0x06;
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pkt[10] = brightness;
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pkt[11] = 0xff;
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pkt[12] = interval;
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pkt
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}
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