1 /* 2 * Copyright 2010 Matt Turner. 3 * Copyright 2012 Red Hat 4 * 5 * This file is subject to the terms and conditions of the GNU General 6 * Public License version 2. See the file COPYING in the main 7 * directory of this archive for more details. 8 * 9 * Authors: Matthew Garrett 10 * Matt Turner 11 * Dave Airlie 12 */ 13 #ifndef __MGAG200_DRV_H__ 14 #define __MGAG200_DRV_H__ 15 16 #include <video/vga.h> 17 18 #include <drm/drm_encoder.h> 19 #include <drm/drm_fb_helper.h> 20 21 #include <drm/drm_gem.h> 22 #include <drm/drm_gem_vram_helper.h> 23 24 #include <drm/drm_vram_mm_helper.h> 25 26 #include <linux/i2c.h> 27 #include <linux/i2c-algo-bit.h> 28 29 #include "mgag200_reg.h" 30 31 #define DRIVER_AUTHOR "Matthew Garrett" 32 33 #define DRIVER_NAME "mgag200" 34 #define DRIVER_DESC "MGA G200 SE" 35 #define DRIVER_DATE "20110418" 36 37 #define DRIVER_MAJOR 1 38 #define DRIVER_MINOR 0 39 #define DRIVER_PATCHLEVEL 0 40 41 #define MGAG200FB_CONN_LIMIT 1 42 43 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg)) 44 #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg)) 45 #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg)) 46 #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg)) 47 48 #define ATTR_INDEX 0x1fc0 49 #define ATTR_DATA 0x1fc1 50 51 #define WREG_ATTR(reg, v) \ 52 do { \ 53 RREG8(0x1fda); \ 54 WREG8(ATTR_INDEX, reg); \ 55 WREG8(ATTR_DATA, v); \ 56 } while (0) \ 57 58 #define WREG_SEQ(reg, v) \ 59 do { \ 60 WREG8(MGAREG_SEQ_INDEX, reg); \ 61 WREG8(MGAREG_SEQ_DATA, v); \ 62 } while (0) \ 63 64 #define WREG_CRT(reg, v) \ 65 do { \ 66 WREG8(MGAREG_CRTC_INDEX, reg); \ 67 WREG8(MGAREG_CRTC_DATA, v); \ 68 } while (0) \ 69 70 71 #define WREG_ECRT(reg, v) \ 72 do { \ 73 WREG8(MGAREG_CRTCEXT_INDEX, reg); \ 74 WREG8(MGAREG_CRTCEXT_DATA, v); \ 75 } while (0) \ 76 77 #define GFX_INDEX 0x1fce 78 #define GFX_DATA 0x1fcf 79 80 #define WREG_GFX(reg, v) \ 81 do { \ 82 WREG8(GFX_INDEX, reg); \ 83 WREG8(GFX_DATA, v); \ 84 } while (0) \ 85 86 #define DAC_INDEX 0x3c00 87 #define DAC_DATA 0x3c0a 88 89 #define WREG_DAC(reg, v) \ 90 do { \ 91 WREG8(DAC_INDEX, reg); \ 92 WREG8(DAC_DATA, v); \ 93 } while (0) \ 94 95 #define MGA_MISC_OUT 0x1fc2 96 #define MGA_MISC_IN 0x1fcc 97 98 #define MGAG200_MAX_FB_HEIGHT 4096 99 #define MGAG200_MAX_FB_WIDTH 4096 100 101 #define MATROX_DPMS_CLEARED (-1) 102 103 #define to_mga_crtc(x) container_of(x, struct mga_crtc, base) 104 #define to_mga_encoder(x) container_of(x, struct mga_encoder, base) 105 #define to_mga_connector(x) container_of(x, struct mga_connector, base) 106 #define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base) 107 108 struct mga_framebuffer { 109 struct drm_framebuffer base; 110 struct drm_gem_object *obj; 111 }; 112 113 struct mga_fbdev { 114 struct drm_fb_helper helper; /* must be first */ 115 struct mga_framebuffer mfb; 116 void *sysram; 117 int size; 118 int x1, y1, x2, y2; /* dirty rect */ 119 spinlock_t dirty_lock; 120 }; 121 122 struct mga_crtc { 123 struct drm_crtc base; 124 u8 lut_r[256], lut_g[256], lut_b[256]; 125 int last_dpms; 126 bool enabled; 127 }; 128 129 struct mga_mode_info { 130 bool mode_config_initialized; 131 struct mga_crtc *crtc; 132 }; 133 134 struct mga_encoder { 135 struct drm_encoder base; 136 int last_dpms; 137 }; 138 139 140 struct mga_i2c_chan { 141 struct i2c_adapter adapter; 142 struct drm_device *dev; 143 struct i2c_algo_bit_data bit; 144 int data, clock; 145 }; 146 147 struct mga_connector { 148 struct drm_connector base; 149 struct mga_i2c_chan *i2c; 150 }; 151 152 struct mga_cursor { 153 /* 154 We have to have 2 buffers for the cursor to avoid occasional 155 corruption while switching cursor icons. 156 If either of these is NULL, then don't do hardware cursors, and 157 fall back to software. 158 */ 159 struct drm_gem_vram_object *pixels_1; 160 struct drm_gem_vram_object *pixels_2; 161 u64 pixels_1_gpu_addr, pixels_2_gpu_addr; 162 /* The currently displayed icon, this points to one of pixels_1, or pixels_2 */ 163 struct drm_gem_vram_object *pixels_current; 164 /* The previously displayed icon */ 165 struct drm_gem_vram_object *pixels_prev; 166 }; 167 168 struct mga_mc { 169 resource_size_t vram_size; 170 resource_size_t vram_base; 171 resource_size_t vram_window; 172 }; 173 174 enum mga_type { 175 G200_SE_A, 176 G200_SE_B, 177 G200_WB, 178 G200_EV, 179 G200_EH, 180 G200_EH3, 181 G200_ER, 182 G200_EW3, 183 }; 184 185 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B) 186 187 struct mga_device { 188 struct drm_device *dev; 189 unsigned long flags; 190 191 resource_size_t rmmio_base; 192 resource_size_t rmmio_size; 193 void __iomem *rmmio; 194 195 struct mga_mc mc; 196 struct mga_mode_info mode_info; 197 198 struct mga_fbdev *mfbdev; 199 struct mga_cursor cursor; 200 201 bool suspended; 202 int num_crtc; 203 enum mga_type type; 204 int has_sdram; 205 struct drm_display_mode mode; 206 207 int bpp_shifts[4]; 208 209 int fb_mtrr; 210 211 /* SE model number stored in reg 0x1e24 */ 212 u32 unique_rev_id; 213 }; 214 215 /* mgag200_mode.c */ 216 int mgag200_modeset_init(struct mga_device *mdev); 217 void mgag200_modeset_fini(struct mga_device *mdev); 218 219 /* mgag200_fb.c */ 220 int mgag200_fbdev_init(struct mga_device *mdev); 221 void mgag200_fbdev_fini(struct mga_device *mdev); 222 223 /* mgag200_main.c */ 224 int mgag200_framebuffer_init(struct drm_device *dev, 225 struct mga_framebuffer *mfb, 226 const struct drm_mode_fb_cmd2 *mode_cmd, 227 struct drm_gem_object *obj); 228 229 230 int mgag200_driver_load(struct drm_device *dev, unsigned long flags); 231 void mgag200_driver_unload(struct drm_device *dev); 232 int mgag200_gem_create(struct drm_device *dev, 233 u32 size, bool iskernel, 234 struct drm_gem_object **obj); 235 int mgag200_dumb_create(struct drm_file *file, 236 struct drm_device *dev, 237 struct drm_mode_create_dumb *args); 238 239 /* mgag200_i2c.c */ 240 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev); 241 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c); 242 243 int mgag200_mm_init(struct mga_device *mdev); 244 void mgag200_mm_fini(struct mga_device *mdev); 245 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); 246 247 int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, 248 uint32_t handle, uint32_t width, uint32_t height); 249 int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); 250 251 #endif /* __MGAG200_DRV_H__ */ 252