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Fix VGA initialization with correct PCI address

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Signed-off-by: Harry Chen <i@harrychen.xyz>
This commit is contained in:
Harry Chen 2019-04-08 03:18:31 +08:00
parent 8754a6eb15
commit a57a22a26b
2 changed files with 15 additions and 21 deletions
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6
kernel/src/arch/mipsel/board/malta/mod.rs
View File

@ -31,7 +31,7 @@ pub fn init_serial_early() {
/// Initialize other board drivers
pub fn init_driver() {
// TODO: add possibly more drivers
vga::init(0xb8000000, 0x92050000, 800, 600);
vga::init(0xb8000000, 0xb2050000, 800, 600);
}
pub fn probe_fb_info(_width: u32, _height: u32, _depth: u32) -> fb::FramebufferResult {
@ -44,8 +44,8 @@ pub fn probe_fb_info(_width: u32, _height: u32, _depth: u32) -> fb::FramebufferR
yoffset: 0,
depth: 8,
pitch: 800,
bus_addr: 0x90000000,
bus_addr: 0xb0000000,
screen_size: 800 * 600,
};
Ok((fb_info, fb::ColorConfig::VgaPalette, 0x90000000))
Ok((fb_info, fb::ColorConfig::VgaPalette, 0xb0000000))
}

30
kernel/src/drivers/gpu/qemu_stdvga.rs
View File

@ -15,30 +15,24 @@ const VGA_AR_PAS: u8 = 0x20;
const VBE_DISPI_ENABLED: u16 = 0x01;
const PCIR_COMMAND: u8 = 0x04;
const PCIM_CMD_PORTEN: u16 = 0x0001;
const PCIM_CMD_MEMEN: u16 = 0x0002;
const PCIM_CMD_PORTEN: u32 = 0x0001;
const PCIM_CMD_MEMEN: u32 = 0x0002;
fn pci_read_config(pci_base: usize, bus: u8, slot: u8, func: u8, offset: u8) -> u16 {
// enable access mechanism
let data = 0xF0 | (func << 1);
write(pci_base + 0xcf8, data);
write(pci_base + 0xcfa, bus);
// calculate port address
let addr: u16 = (0xC000 | ((slot as u16) << 8) | (offset as u16)) & 0xFFFC;
fn pci_read_config(pci_base: usize, bus: u8, slot: u8, func: u8, offset: u8) -> u32 {
// write config address
let address = (1 << 31) | ((bus as u32) << 16) | ((slot as u32) << 11) | ((func as u32) << 8) | (offset as u32);
write(pci_base + 0xcf8, address);
// do the actual work
read(pci_base + addr as usize)
read(pci_base + 0xcfc)
}
fn pci_write_config(pci_base: usize, bus: u8, slot: u8, func: u8, offset: u8, value: u16) {
// enable access mechanism
let data = 0xF0 | (func << 1);
write(pci_base + 0xcf8, data);
write(pci_base + 0xcfa, bus);
// calculate port address
let addr: u16 = (0xC000 | ((slot as u16) << 8) | (offset as u16)) & 0xFFFC;
fn pci_write_config(pci_base: usize, bus: u8, slot: u8, func: u8, offset: u8, value: u32) {
// write config address
let address = (1 << 31) | ((bus as u32) << 16) | ((slot as u32) << 11) | ((func as u32) << 8) | (offset as u32);
write(pci_base + 0xcf8, address);
// do the actual work
write(pci_base + addr as usize, value);
write(pci_base + 0xcfc, value)
}
pub fn init(pci_base: usize, vga_base: usize, x_res: u16, y_res: u16) {