mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-11-18 22:05:51 +00:00
106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-23 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef ATI_RAGE_H
|
|
#define ATI_RAGE_H
|
|
|
|
#include <devices/common/pci/pcidevice.h>
|
|
#include <devices/video/atimach64defs.h>
|
|
#include <devices/video/displayid.h>
|
|
#include <devices/video/videoctrl.h>
|
|
|
|
#include <cinttypes>
|
|
#include <memory>
|
|
|
|
/* Mach64 PLL register indices. */
|
|
enum {
|
|
PLL_REF_DIV = 2, // reference divider, same for all Mach64 clocks
|
|
PLL_VCLK_CNTL = 5,
|
|
VCLK_POST_DIV = 6,
|
|
VCLK0_FB_DIV = 7, // feedback divider for VCLK0
|
|
VCLK1_FB_DIV = 8, // feedback divider for VCLK1
|
|
VCLK2_FB_DIV = 9, // feedback divider for VCLK2
|
|
VCLK3_FB_DIV = 10, // feedback divider for VCLK3
|
|
PLL_EXT_CNTL = 11,
|
|
};
|
|
|
|
class ATIRage : public PCIDevice, public VideoCtrlBase {
|
|
public:
|
|
ATIRage(uint16_t dev_id);
|
|
~ATIRage() = default;
|
|
|
|
static std::unique_ptr<HWComponent> create_gt() {
|
|
return std::unique_ptr<ATIRage>(new ATIRage(ATI_RAGE_GT_DEV_ID));
|
|
}
|
|
|
|
static std::unique_ptr<HWComponent> create_pro() {
|
|
return std::unique_ptr<ATIRage>(new ATIRage(ATI_RAGE_PRO_DEV_ID));
|
|
}
|
|
|
|
// MMIODevice methods
|
|
uint32_t read(uint32_t rgn_start, uint32_t offset, int size);
|
|
void write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size);
|
|
|
|
// PCI device methods
|
|
uint32_t pci_cfg_read(uint32_t reg_offs, AccessDetails &details);
|
|
void pci_cfg_write(uint32_t reg_offs, uint32_t value, AccessDetails &details);
|
|
|
|
// I/O space access methods
|
|
bool pci_io_read(uint32_t offset, uint32_t size, uint32_t* res);
|
|
bool pci_io_write(uint32_t offset, uint32_t value, uint32_t size);
|
|
|
|
protected:
|
|
void notify_bar_change(int bar_num);
|
|
const char* get_reg_name(uint32_t reg_offset);
|
|
bool io_access_allowed(uint32_t offset);
|
|
uint32_t read_reg(uint32_t reg_offset, uint32_t size);
|
|
void write_reg(uint32_t reg_addr, uint32_t value, uint32_t size);
|
|
float calc_pll_freq(int scale, int fb_div);
|
|
void verbose_pixel_format(int crtc_index);
|
|
void crtc_update();
|
|
void crtc_enable();
|
|
void draw_hw_cursor(uint8_t *dst_buf, int dst_pitch);
|
|
void get_cursor_position(int& x, int& y);
|
|
|
|
private:
|
|
uint32_t regs[512] = {}; // internal registers
|
|
uint8_t plls[64] = {}; // internal PLL registers
|
|
|
|
// Video RAM variables
|
|
std::unique_ptr<uint8_t[]> vram_ptr;
|
|
uint32_t vram_size;
|
|
|
|
uint32_t aperture_base = 0;
|
|
uint32_t io_base = 0;
|
|
uint8_t user_cfg = 8;
|
|
|
|
std::unique_ptr<DisplayID> disp_id;
|
|
|
|
// DAC interface state
|
|
uint8_t dac_wr_index = 0; // current DAC color index for writing
|
|
uint8_t dac_rd_index = 0; // current DAC color index for reading
|
|
uint8_t dac_mask = 0; // current DAC mask
|
|
int comp_index = 0; // current color component index
|
|
uint8_t color_buf[3] = {}; // buffer for storing DAC color components
|
|
};
|
|
|
|
#endif // ATI_RAGE_H
|