TheSchemm
147 lines
2.6 KiB
Rust
147 lines
2.6 KiB
Rust
use std::{mem, thread, ptr, fmt};
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use syscall::io::{Dma, Mmio, Io, ReadOnly};
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// CORBCTL
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const CMEIE: u8 = 1 << 0; // 1 bit
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const CORBRUN: u8 = 1 << 1; // 1 bit
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// CORBSIZE
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const CORBSZCAP: (u8,u8) = (4, 4);
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const CORBSIZE: (u8,u8) = (0, 2);
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// CORBRP
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const CORBRPRST: u16 = 1 << 15;
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// RIRBWP
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const RIRBWPRST: u16 = 1 << 15;
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// RIRBCTL
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const RINTCTL: u8 = 1 << 0; // 1 bit
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const RIRBDMAEN: u8 = 1 << 1; // 1 bit
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const CORB_OFFSET: usize = 0x00;
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const RIRB_OFFSET: usize = 0x10;
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const CORB_BUFF_MAX_SIZE: usize = 1024;
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struct CommandBufferRegs {
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corblbase: Mmio<u32>,
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corbubase: Mmio<u32>,
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corbwp: Mmio<u16>,
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corbrp: Mmio<u16>,
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corbctl: Mmio<u8>,
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corbsts: Mmio<u8>,
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corbsize: Mmio<u8>,
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rsvd5: Mmio<u8>,
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rirblbase: Mmio<u32>,
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rirbubase: Mmio<u32>,
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rirbwp: Mmio<u16>,
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rintcnt: Mmio<u16>,
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rirbctl: Mmio<u8>,
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rirbsts: Mmio<u8>,
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rirbsize: Mmio<u8>,
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rsvd6: Mmio<u8>,
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}
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struct CorbRegs {
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corblbase: Mmio<u32>,
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corbubase: Mmio<u32>,
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corbwp: Mmio<u16>,
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corbrp: Mmio<u16>,
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corbctl: Mmio<u8>,
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corbsts: Mmio<u8>,
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corbsize: Mmio<u8>,
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rsvd5: Mmio<u8>,
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}
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struct Corb {
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regs: &'static mut CorbRegs,
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corb_base: *mut u32,
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corb_base_phys: usize,
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}
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impl Corb {
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pub fn new(regs_addr:usize, corb_buff_phys:usize, corb_buff_virt:usize) -> Corb {
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Corb {
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regs: &mut *(regs_addr as *mut CorbRegs);
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corb_base: (corb_buff_virt) as *mut u64,
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}
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}
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}
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struct RirbRegs {
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rirblbase: Mmio<u32>,
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rirbubase: Mmio<u32>,
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rirbwp: Mmio<u16>,
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rintcnt: Mmio<u16>,
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rirbctl: Mmio<u8>,
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rirbsts: Mmio<u8>,
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rirbsize: Mmio<u8>,
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rsvd6: Mmio<u8>,
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}
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struct Rirb {
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regs: &'static mut RirbRegs,
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rirb_base: *mut u64,
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rirb_base_phys: usize,
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rirb_rp: usize,
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}
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impl Rirb {
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pub fn new(regs_addr:usize, rirb_buff_phys:usize, rirb_buff_virt:usize) -> Rirb {
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Rirb {
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regs: &mut *(regs_addr as *mut RirbRegs);
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rirb_base: (rirb_buff_virt) as *mut u64,
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rirb_rp: 0,
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rirb_base_phys: rirb_buff_phys,
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}
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}
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}
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struct CommandBuffer {
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// regs: &'static mut CommandBufferRegs,
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corb: Corb,
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rirb: Rirb,
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corb_rirb_base_phys: usize,
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}
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impl CommandBuffer {
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pub fn new(regs_addr:usize, cmd_buff_frame_phys:usize, cmd_buff_frame:usize ) -> CommandBuffer {
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let corb = Corb::new(regs_addr + CORB_OFFSET, cmd_buff_frame_phys, cmd_buff_frame);
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let rirb = Rirb::new(regs_addr + RIRB_OFFSET,
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cmd_buff_frame_phys + CORB_BUFF_MAX_SIZE,
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cmd_buff_frame + CORB_BUFF_MAX_SIZE);
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CommandBuffer {
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corb: corb,
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rirb: rirb,
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corb_rirb_base_phys: cmd_buff_frame_phys,
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}
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}
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}
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