diff options
Diffstat (limited to 'src/drv/ps1/gpu')
| -rw-r--r-- | src/drv/ps1/gpu/CMakeLists.txt | 18 | ||||
| -rw-r--r-- | src/drv/ps1/gpu/include/drv/ps1/gpu.h | 167 |
2 files changed, 185 insertions, 0 deletions
diff --git a/src/drv/ps1/gpu/CMakeLists.txt b/src/drv/ps1/gpu/CMakeLists.txt new file mode 100644 index 0000000..9dead67 --- /dev/null +++ b/src/drv/ps1/gpu/CMakeLists.txt @@ -0,0 +1,18 @@ +# wanix, a Unix-like operating system for WebAssembly applications. +# Copyright (C) 2025 Xavier Del Campo Romero +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero 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 Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +add_library(drv_ps1_gpu INTERFACE) +target_include_directories(drv_ps1_gpu INTERFACE include) diff --git a/src/drv/ps1/gpu/include/drv/ps1/gpu.h b/src/drv/ps1/gpu/include/drv/ps1/gpu.h new file mode 100644 index 0000000..0f64a7f --- /dev/null +++ b/src/drv/ps1/gpu/include/drv/ps1/gpu.h @@ -0,0 +1,167 @@ +/* + * wanix, a Unix-like operating system for WebAssembly applications. + * Copyright (C) 2025 Xavier Del Campo Romero + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef DRV_PS1_GPU_H +#define DRV_PS1_GPU_H + +#include <stdint.h> + +enum +{ + GP0_TEXTRECT_VARSZ_OPAQ_RAW = 0x65, + GP0_COPY_RECT_CPU_VRAM = 0xa0, + GP0_COPY_RECT_VRAM_CPU = 0xc0, + GP0_DRAW_MODE = 0xe1, + GP0_TEX_WINDOW, + GP0_DRAW_AREA_TOP_LEFT, + GP0_DRAW_AREA_BOTTOM_RIGHT, + GP0_DRAW_OFFSET, + GP0_DRAW_MASK_BIT +}; + +enum +{ + GP1_RESET_GPU, + GP1_RESET_CMDBUF, + GP1_ACK_IRQ, + GP1_DISPLAY_ENABLE, + GP1_DMA_DIR, + GP1_START_DISPLAY_AREA, + GP1_H_DISPLAY_RANGE, + GP1_V_DISPLAY_RANGE, + GP1_DISPLAY_MODE +}; + +enum +{ + GP1_DMA_DIR_OFF, + GP1_DMA_DIR_FIFO, + GP1_DMA_DIR_CPU_TO_GP0, + GP1_DMA_DIR_GPUREAD_TO_CPU +}; + +union drv_ps1_gpu_gp0 +{ + uint32_t mask; + + struct + { + uint32_t :24, cmd :8; + } copy_rect; + + struct + { + uint16_t x, y; + } coord; + + struct + { + uint16_t w, h; + } size; + + struct + { + uint32_t page_x :4, page_y :1, stp :2, bpp :2, dither :1, + draw_to_display :1, tex_disable :1, xflip :1, yflip :1, :10, + cmd :8; + } draw_mode; + + struct + { + uint32_t mask_x :5, mask_y :5, off_x :5, off_y :5, :4, cmd :8; + } tex_window; + + struct + { + uint32_t x :10, y :9, :5, cmd :8; + } draw_area_tl, draw_area_br; + + struct + { + int32_t x :11, y :11, :2, cmd :8; + } offset; + + struct + { + uint32_t set :1, check :1, :22, cmd :8; + } mask_bit; +}; + +union drv_ps1_gpu_gp1 +{ + uint32_t mask; + + struct + { + uint32_t :24, cmd:8; + } reset_gpu, reset_cmdbuf, ack_irq; + + struct + { + uint32_t disable :1, :23, cmd :8; + } display; + + struct + { + uint32_t dir :2, :22, cmd :8; + } dma; + + struct + { + uint32_t x :10, y :9, :5, cmd :8; + } disparea; + + struct + { + uint32_t x1 :12, x2 :12, cmd :8; + } h_display_range; + + struct + { + uint32_t y1 :10, y2 :10, :4, cmd :8; + } v_display_range; + + struct + { + uint32_t hres :2, vres :1, vmode :1, coldepth :1, vinterlace :1, + hres2 :1, reverse :1, :16, cmd :8; + } display_mode; +}; + +union drv_ps1_gpu_stat +{ + struct + { + uint32_t x_base :4, y_base :1, stp :2, bpp :2, dither :1, + draw_to_display :1, set_mask :1, draw_pix :1, interlace :1, + reverse :1, disable :1, xres2 :1, xres1 :2, yres :1, vmode :1, + coldepth :1, vinterlace :1, display_enable :1, irq_req :1, + dma_req :1, ready_cmd :1, ready_send :1, ready_recv :1, + ready_dma :1, dma_dir :2, draw_odd :1; + } bits; + + uint32_t mask; +}; + +#define GPU_BASE 0x1f801810 +#define GPU_REG(x) (GPU_BASE + (x)) +#define GP0 ((volatile union drv_ps1_gpu_gp0 *)GPU_REG(0)) +#define GP1 ((volatile union drv_ps1_gpu_gp1 *)GPU_REG(4)) +#define GPUSTAT ((volatile const union drv_ps1_gpu_stat *)GPU_REG(4)) + +#endif |