Daniel Samson
9ef22d6e55
device-manager-protocol -> library/protocol/device-manager/. Its consumers (pci-bus, usb-xhci-bus, the acpi discovery service, device-manager, device-list, crash-test, and the not-yet-built intel-integrated display sub-driver) import the module directly instead of through runtime.device_manager_protocol, which is deleted. runtime.device_manager (the hello client) already imported the module by name and is unchanged. zig build + test green; device-manager, driver-restart, device-list, pci-scan pass.
71 lines
2.6 KiB
Zig
71 lines
2.6 KiB
Zig
//! /system/drivers/display/intel-integrated - the intel 985 family display engine driver.
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const std = @import("std");
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const runtime = @import("runtime");
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const mmio = @import("mmio");
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const device = runtime.device;
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const dma = runtime.dma;
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const shared_memory = runtime.shared_memory;
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const system = runtime.system;
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const ipc = runtime.ipc;
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const display_protocol = runtime.display_protocol;
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const scanout_protocol = runtime.scanout_protocol;
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const device_manager_protocol = @import("device-manager-protocol");
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var device_id: u64 = 0;
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fn initialise(endpoint: ipc.Handle) bool {
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_ = endpoint;
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return true;
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}
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fn onMessage(message: []const u8, reply: []u8, sender: u32, capability: ?ipc.Handle) usize {
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_ = sender;
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_ = capability;
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_ = reply;
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if (message.len < scanout_protocol.request_size) return 0;
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const request = std.mem.bytesToValue(scanout_protocol.Request, message[0..scanout_protocol.request_size]);
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switch (request.operation) {
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_ => return 0,
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// TODO:
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// @intFromEnum(sp.Operation.present) => return scanoutStatus(reply, presentFull()),
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// @intFromEnum(sp.Operation.get_modes) => {
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// var response = sp.ModesReply{ .status = 0, .count = offered_modes.len, .modes = undefined };
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// for (0..sp.max_modes) |i| {
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// response.modes[i] = if (i < offered_modes.len)
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// .{ .width = offered_modes[i].width, .height = offered_modes[i].height }
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// else
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// .{ .width = 0, .height = 0 };
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// }
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// @memcpy(reply[0..sp.modes_reply_size], std.mem.asBytes(&response));
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// return sp.modes_reply_size;
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// },
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// @intFromEnum(sp.Operation.set_mode) => {
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// const w = request.width;
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// const h = request.height;
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// if (w == 0 or h == 0 or w > max_width or h > max_height) return scanoutStatus(reply, false);
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// current_width = w;
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// current_height = h;
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// return scanoutStatus(reply, setScanoutRect());
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// },
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else => return 0,
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}
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return 0;
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}
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pub fn main(init: runtime.process.Init) void {
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const argument = init.arguments.get(1) orelse {
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_ = system.write("display/intel-985: missing device id (argv[1])\n");
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return;
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};
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device_id = std.fmt.parseInt(u64, argument, 10) catch {
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std.log.info("malformed device id '{s}'", .{argument});
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return;
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};
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runtime.service.run(256, .{
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.service = .scanout,
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.init = initialise,
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.on_message = onMessage,
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});
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}
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