1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2010 Matt Turner. 4 * Copyright 2012 Red Hat 5 * 6 * Authors: Matthew Garrett 7 * Matt Turner 8 * Dave Airlie 9 */ 10 #ifndef __MGAG200_DRV_H__ 11 #define __MGAG200_DRV_H__ 12 13 #include <linux/i2c-algo-bit.h> 14 #include <linux/i2c.h> 15 16 #include <video/vga.h> 17 18 #include <drm/drm_encoder.h> 19 #include <drm/drm_fb_helper.h> 20 #include <drm/drm_gem.h> 21 #include <drm/drm_gem_vram_helper.h> 22 23 #include "mgag200_reg.h" 24 25 #define DRIVER_AUTHOR "Matthew Garrett" 26 27 #define DRIVER_NAME "mgag200" 28 #define DRIVER_DESC "MGA G200 SE" 29 #define DRIVER_DATE "20110418" 30 31 #define DRIVER_MAJOR 1 32 #define DRIVER_MINOR 0 33 #define DRIVER_PATCHLEVEL 0 34 35 #define MGAG200FB_CONN_LIMIT 1 36 37 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg)) 38 #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg)) 39 #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg)) 40 #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg)) 41 42 #define ATTR_INDEX 0x1fc0 43 #define ATTR_DATA 0x1fc1 44 45 #define WREG_ATTR(reg, v) \ 46 do { \ 47 RREG8(0x1fda); \ 48 WREG8(ATTR_INDEX, reg); \ 49 WREG8(ATTR_DATA, v); \ 50 } while (0) \ 51 52 #define WREG_SEQ(reg, v) \ 53 do { \ 54 WREG8(MGAREG_SEQ_INDEX, reg); \ 55 WREG8(MGAREG_SEQ_DATA, v); \ 56 } while (0) \ 57 58 #define WREG_CRT(reg, v) \ 59 do { \ 60 WREG8(MGAREG_CRTC_INDEX, reg); \ 61 WREG8(MGAREG_CRTC_DATA, v); \ 62 } while (0) \ 63 64 65 #define WREG_ECRT(reg, v) \ 66 do { \ 67 WREG8(MGAREG_CRTCEXT_INDEX, reg); \ 68 WREG8(MGAREG_CRTCEXT_DATA, v); \ 69 } while (0) \ 70 71 #define GFX_INDEX 0x1fce 72 #define GFX_DATA 0x1fcf 73 74 #define WREG_GFX(reg, v) \ 75 do { \ 76 WREG8(GFX_INDEX, reg); \ 77 WREG8(GFX_DATA, v); \ 78 } while (0) \ 79 80 #define DAC_INDEX 0x3c00 81 #define DAC_DATA 0x3c0a 82 83 #define WREG_DAC(reg, v) \ 84 do { \ 85 WREG8(DAC_INDEX, reg); \ 86 WREG8(DAC_DATA, v); \ 87 } while (0) \ 88 89 #define MGA_MISC_OUT 0x1fc2 90 #define MGA_MISC_IN 0x1fcc 91 92 #define MGAG200_MAX_FB_HEIGHT 4096 93 #define MGAG200_MAX_FB_WIDTH 4096 94 95 #define MATROX_DPMS_CLEARED (-1) 96 97 #define to_mga_crtc(x) container_of(x, struct mga_crtc, base) 98 #define to_mga_connector(x) container_of(x, struct mga_connector, base) 99 100 struct mga_crtc { 101 struct drm_crtc base; 102 u8 lut_r[256], lut_g[256], lut_b[256]; 103 int last_dpms; 104 bool enabled; 105 }; 106 107 struct mga_i2c_chan { 108 struct i2c_adapter adapter; 109 struct drm_device *dev; 110 struct i2c_algo_bit_data bit; 111 int data, clock; 112 }; 113 114 struct mga_connector { 115 struct drm_connector base; 116 struct mga_i2c_chan *i2c; 117 }; 118 119 struct mga_cursor { 120 struct drm_gem_vram_object *gbo[2]; 121 unsigned int next_index; 122 }; 123 124 struct mga_mc { 125 resource_size_t vram_size; 126 resource_size_t vram_base; 127 resource_size_t vram_window; 128 }; 129 130 enum mga_type { 131 G200_SE_A, 132 G200_SE_B, 133 G200_WB, 134 G200_EV, 135 G200_EH, 136 G200_EH3, 137 G200_ER, 138 G200_EW3, 139 }; 140 141 /* HW does not handle 'startadd' field correct. */ 142 #define MGAG200_FLAG_HW_BUG_NO_STARTADD (1ul << 8) 143 144 #define MGAG200_TYPE_MASK (0x000000ff) 145 #define MGAG200_FLAG_MASK (0x00ffff00) 146 147 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) 148 149 struct mga_device { 150 struct drm_device *dev; 151 unsigned long flags; 152 153 resource_size_t rmmio_base; 154 resource_size_t rmmio_size; 155 void __iomem *rmmio; 156 157 struct mga_mc mc; 158 159 struct mga_cursor cursor; 160 161 size_t vram_fb_available; 162 163 bool suspended; 164 enum mga_type type; 165 int has_sdram; 166 167 int bpp_shifts[4]; 168 169 int fb_mtrr; 170 171 /* SE model number stored in reg 0x1e24 */ 172 u32 unique_rev_id; 173 174 struct mga_connector connector; 175 struct drm_encoder encoder; 176 }; 177 178 static inline struct mga_device *to_mga_device(struct drm_device *dev) 179 { 180 return dev->dev_private; 181 } 182 183 static inline enum mga_type 184 mgag200_type_from_driver_data(kernel_ulong_t driver_data) 185 { 186 return (enum mga_type)(driver_data & MGAG200_TYPE_MASK); 187 } 188 189 static inline unsigned long 190 mgag200_flags_from_driver_data(kernel_ulong_t driver_data) 191 { 192 return driver_data & MGAG200_FLAG_MASK; 193 } 194 195 /* mgag200_mode.c */ 196 int mgag200_modeset_init(struct mga_device *mdev); 197 198 /* mgag200_main.c */ 199 int mgag200_driver_load(struct drm_device *dev, unsigned long flags); 200 void mgag200_driver_unload(struct drm_device *dev); 201 202 /* mgag200_i2c.c */ 203 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev); 204 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c); 205 206 int mgag200_mm_init(struct mga_device *mdev); 207 void mgag200_mm_fini(struct mga_device *mdev); 208 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); 209 210 int mgag200_cursor_init(struct mga_device *mdev); 211 void mgag200_cursor_fini(struct mga_device *mdev); 212 int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, 213 uint32_t handle, uint32_t width, uint32_t height); 214 int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); 215 216 #endif /* __MGAG200_DRV_H__ */ 217