/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2010 Matt Turner. * Copyright 2012 Red Hat * * Authors: Matthew Garrett * Matt Turner * Dave Airlie */ #ifndef __MGAG200_DRV_H__ #define __MGAG200_DRV_H__ #include <linux/i2c-algo-bit.h> #include <linux/i2c.h> #include <video/vga.h> #include <drm/drm_encoder.h> #include <drm/drm_fb_helper.h> #include <drm/drm_gem.h> #include <drm/drm_gem_vram_helper.h> #include "mgag200_reg.h" #define DRIVER_AUTHOR "Matthew Garrett" #define DRIVER_NAME "mgag200" #define DRIVER_DESC "MGA G200 SE" #define DRIVER_DATE "20110418" #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 0 #define MGAG200FB_CONN_LIMIT 1 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg)) #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg)) #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg)) #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg)) #define ATTR_INDEX 0x1fc0 #define ATTR_DATA 0x1fc1 #define WREG_ATTR(reg, v) \ do { \ RREG8(0x1fda); \ WREG8(ATTR_INDEX, reg); \ WREG8(ATTR_DATA, v); \ } while (0) \ #define WREG_SEQ(reg, v) \ do { \ WREG8(MGAREG_SEQ_INDEX, reg); \ WREG8(MGAREG_SEQ_DATA, v); \ } while (0) \ #define WREG_CRT(reg, v) \ do { \ WREG8(MGAREG_CRTC_INDEX, reg); \ WREG8(MGAREG_CRTC_DATA, v); \ } while (0) \ #define WREG_ECRT(reg, v) \ do { \ WREG8(MGAREG_CRTCEXT_INDEX, reg); \ WREG8(MGAREG_CRTCEXT_DATA, v); \ } while (0) \ #define GFX_INDEX 0x1fce #define GFX_DATA 0x1fcf #define WREG_GFX(reg, v) \ do { \ WREG8(GFX_INDEX, reg); \ WREG8(GFX_DATA, v); \ } while (0) \ #define DAC_INDEX 0x3c00 #define DAC_DATA 0x3c0a #define WREG_DAC(reg, v) \ do { \ WREG8(DAC_INDEX, reg); \ WREG8(DAC_DATA, v); \ } while (0) \ #define MGA_MISC_OUT 0x1fc2 #define MGA_MISC_IN 0x1fcc #define MGAG200_MAX_FB_HEIGHT 4096 #define MGAG200_MAX_FB_WIDTH 4096 #define MATROX_DPMS_CLEARED (-1) #define to_mga_crtc(x) container_of(x, struct mga_crtc, base) #define to_mga_encoder(x) container_of(x, struct mga_encoder, base) #define to_mga_connector(x) container_of(x, struct mga_connector, base) struct mga_crtc { struct drm_crtc base; u8 lut_r[256], lut_g[256], lut_b[256]; int last_dpms; bool enabled; }; struct mga_mode_info { bool mode_config_initialized; struct mga_crtc *crtc; }; struct mga_encoder { struct drm_encoder base; int last_dpms; }; struct mga_i2c_chan { struct i2c_adapter adapter; struct drm_device *dev; struct i2c_algo_bit_data bit; int data, clock; }; struct mga_connector { struct drm_connector base; struct mga_i2c_chan *i2c; }; struct mga_cursor { struct drm_gem_vram_object *gbo[2]; unsigned int next_index; }; struct mga_mc { resource_size_t vram_size; resource_size_t vram_base; resource_size_t vram_window; }; enum mga_type { G200_SE_A, G200_SE_B, G200_WB, G200_EV, G200_EH, G200_EH3, G200_ER, G200_EW3, }; /* HW does not handle 'startadd' field correct. */ #define MGAG200_FLAG_HW_BUG_NO_STARTADD (1ul << 8) #define MGAG200_TYPE_MASK (0x000000ff) #define MGAG200_FLAG_MASK (0x00ffff00) #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) struct mga_device { struct drm_device *dev; unsigned long flags; resource_size_t rmmio_base; resource_size_t rmmio_size; void __iomem *rmmio; struct mga_mc mc; struct mga_mode_info mode_info; struct mga_cursor cursor; size_t vram_fb_available; bool suspended; int num_crtc; enum mga_type type; int has_sdram; struct drm_display_mode mode; int bpp_shifts[4]; int fb_mtrr; /* SE model number stored in reg 0x1e24 */ u32 unique_rev_id; }; static inline enum mga_type mgag200_type_from_driver_data(kernel_ulong_t driver_data) { return (enum mga_type)(driver_data & MGAG200_TYPE_MASK); } static inline unsigned long mgag200_flags_from_driver_data(kernel_ulong_t driver_data) { return driver_data & MGAG200_FLAG_MASK; } /* mgag200_mode.c */ int mgag200_modeset_init(struct mga_device *mdev); void mgag200_modeset_fini(struct mga_device *mdev); /* mgag200_main.c */ int mgag200_driver_load(struct drm_device *dev, unsigned long flags); void mgag200_driver_unload(struct drm_device *dev); /* mgag200_i2c.c */ struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev); void mgag200_i2c_destroy(struct mga_i2c_chan *i2c); int mgag200_mm_init(struct mga_device *mdev); void mgag200_mm_fini(struct mga_device *mdev); int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); int mgag200_cursor_init(struct mga_device *mdev); void mgag200_cursor_fini(struct mga_device *mdev); int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, uint32_t width, uint32_t height); int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); #endif /* __MGAG200_DRV_H__ */