Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/tgafb.c -- DEC 21030 TGA frame buffer device |
| 3 | * |
| 4 | * Copyright (C) 1995 Jay Estabrook |
| 5 | * Copyright (C) 1997 Geert Uytterhoeven |
| 6 | * Copyright (C) 1999,2000 Martin Lucina, Tom Zerucha |
| 7 | * Copyright (C) 2002 Richard Henderson |
Maciej W. Rozycki | b738b99 | 2007-10-16 01:29:56 -0700 | [diff] [blame] | 8 | * Copyright (C) 2006, 2007 Maciej W. Rozycki |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * |
| 10 | * This file is subject to the terms and conditions of the GNU General Public |
| 11 | * License. See the file COPYING in the main directory of this archive for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 15 | #include <linux/bitrev.h> |
Maciej W. Rozycki | b738b99 | 2007-10-16 01:29:56 -0700 | [diff] [blame] | 16 | #include <linux/compiler.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/delay.h> |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 18 | #include <linux/device.h> |
| 19 | #include <linux/errno.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <linux/fb.h> |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 21 | #include <linux/init.h> |
| 22 | #include <linux/ioport.h> |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/mm.h> |
| 25 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/pci.h> |
| 27 | #include <linux/selection.h> |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 28 | #include <linux/string.h> |
| 29 | #include <linux/tc.h> |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <asm/io.h> |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <video/tgafb.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 35 | #ifdef CONFIG_PCI |
| 36 | #define TGA_BUS_PCI(dev) (dev->bus == &pci_bus_type) |
| 37 | #else |
| 38 | #define TGA_BUS_PCI(dev) 0 |
| 39 | #endif |
| 40 | |
| 41 | #ifdef CONFIG_TC |
| 42 | #define TGA_BUS_TC(dev) (dev->bus == &tc_bus_type) |
| 43 | #else |
| 44 | #define TGA_BUS_TC(dev) 0 |
| 45 | #endif |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | /* |
| 48 | * Local functions. |
| 49 | */ |
| 50 | |
| 51 | static int tgafb_check_var(struct fb_var_screeninfo *, struct fb_info *); |
| 52 | static int tgafb_set_par(struct fb_info *); |
| 53 | static void tgafb_set_pll(struct tga_par *, int); |
| 54 | static int tgafb_setcolreg(unsigned, unsigned, unsigned, unsigned, |
| 55 | unsigned, struct fb_info *); |
| 56 | static int tgafb_blank(int, struct fb_info *); |
| 57 | static void tgafb_init_fix(struct fb_info *); |
| 58 | |
| 59 | static void tgafb_imageblit(struct fb_info *, const struct fb_image *); |
| 60 | static void tgafb_fillrect(struct fb_info *, const struct fb_fillrect *); |
| 61 | static void tgafb_copyarea(struct fb_info *, const struct fb_copyarea *); |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 62 | static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 64 | static int tgafb_register(struct device *dev); |
| 65 | static void tgafb_unregister(struct device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 67 | static const char *mode_option; |
| 68 | static const char *mode_option_pci = "640x480@60"; |
| 69 | static const char *mode_option_tc = "1280x1024@72"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
| 71 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 72 | static struct pci_driver tgafb_pci_driver; |
| 73 | static struct tc_driver tgafb_tc_driver; |
| 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | /* |
| 76 | * Frame buffer operations |
| 77 | */ |
| 78 | |
| 79 | static struct fb_ops tgafb_ops = { |
| 80 | .owner = THIS_MODULE, |
| 81 | .fb_check_var = tgafb_check_var, |
| 82 | .fb_set_par = tgafb_set_par, |
| 83 | .fb_setcolreg = tgafb_setcolreg, |
| 84 | .fb_blank = tgafb_blank, |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 85 | .fb_pan_display = tgafb_pan_display, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | .fb_fillrect = tgafb_fillrect, |
| 87 | .fb_copyarea = tgafb_copyarea, |
| 88 | .fb_imageblit = tgafb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | }; |
| 90 | |
| 91 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 92 | #ifdef CONFIG_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | /* |
| 94 | * PCI registration operations |
| 95 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 96 | static int tgafb_pci_register(struct pci_dev *, const struct pci_device_id *); |
| 97 | static void tgafb_pci_unregister(struct pci_dev *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | static struct pci_device_id const tgafb_pci_table[] = { |
Maciej W. Rozycki | fef4590 | 2007-02-12 00:54:58 -0800 | [diff] [blame] | 100 | { PCI_DEVICE(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TGA) }, |
| 101 | { } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | }; |
Maciej W. Rozycki | fef4590 | 2007-02-12 00:54:58 -0800 | [diff] [blame] | 103 | MODULE_DEVICE_TABLE(pci, tgafb_pci_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 105 | static struct pci_driver tgafb_pci_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | .name = "tgafb", |
| 107 | .id_table = tgafb_pci_table, |
| 108 | .probe = tgafb_pci_register, |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 109 | .remove = tgafb_pci_unregister, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | }; |
| 111 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 112 | static int tgafb_pci_register(struct pci_dev *pdev, |
| 113 | const struct pci_device_id *ent) |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 114 | { |
| 115 | return tgafb_register(&pdev->dev); |
| 116 | } |
| 117 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 118 | static void tgafb_pci_unregister(struct pci_dev *pdev) |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 119 | { |
| 120 | tgafb_unregister(&pdev->dev); |
| 121 | } |
| 122 | #endif /* CONFIG_PCI */ |
| 123 | |
| 124 | #ifdef CONFIG_TC |
| 125 | /* |
| 126 | * TC registration operations |
| 127 | */ |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 128 | static int tgafb_tc_register(struct device *); |
| 129 | static int tgafb_tc_unregister(struct device *); |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 130 | |
| 131 | static struct tc_device_id const tgafb_tc_table[] = { |
| 132 | { "DEC ", "PMAGD-AA" }, |
| 133 | { "DEC ", "PMAGD " }, |
| 134 | { } |
| 135 | }; |
| 136 | MODULE_DEVICE_TABLE(tc, tgafb_tc_table); |
| 137 | |
| 138 | static struct tc_driver tgafb_tc_driver = { |
| 139 | .id_table = tgafb_tc_table, |
| 140 | .driver = { |
| 141 | .name = "tgafb", |
| 142 | .bus = &tc_bus_type, |
| 143 | .probe = tgafb_tc_register, |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 144 | .remove = tgafb_tc_unregister, |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 145 | }, |
| 146 | }; |
| 147 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 148 | static int tgafb_tc_register(struct device *dev) |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 149 | { |
| 150 | int status = tgafb_register(dev); |
| 151 | if (!status) |
| 152 | get_device(dev); |
| 153 | return status; |
| 154 | } |
| 155 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 156 | static int tgafb_tc_unregister(struct device *dev) |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 157 | { |
| 158 | put_device(dev); |
| 159 | tgafb_unregister(dev); |
| 160 | return 0; |
| 161 | } |
| 162 | #endif /* CONFIG_TC */ |
| 163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | /** |
| 166 | * tgafb_check_var - Optional function. Validates a var passed in. |
| 167 | * @var: frame buffer variable screen structure |
| 168 | * @info: frame buffer structure that represents a single frame buffer |
| 169 | */ |
| 170 | static int |
| 171 | tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 172 | { |
| 173 | struct tga_par *par = (struct tga_par *)info->par; |
| 174 | |
| 175 | if (par->tga_type == TGA_TYPE_8PLANE) { |
| 176 | if (var->bits_per_pixel != 8) |
| 177 | return -EINVAL; |
| 178 | } else { |
| 179 | if (var->bits_per_pixel != 32) |
| 180 | return -EINVAL; |
| 181 | } |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 182 | var->red.length = var->green.length = var->blue.length = 8; |
| 183 | if (var->bits_per_pixel == 32) { |
| 184 | var->red.offset = 16; |
| 185 | var->green.offset = 8; |
| 186 | var->blue.offset = 0; |
| 187 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
| 189 | if (var->xres_virtual != var->xres || var->yres_virtual != var->yres) |
| 190 | return -EINVAL; |
| 191 | if (var->nonstd) |
| 192 | return -EINVAL; |
| 193 | if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ) |
| 194 | return -EINVAL; |
| 195 | if ((var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) |
| 196 | return -EINVAL; |
| 197 | |
| 198 | /* Some of the acceleration routines assume the line width is |
| 199 | a multiple of 64 bytes. */ |
| 200 | if (var->xres * (par->tga_type == TGA_TYPE_8PLANE ? 1 : 4) % 64) |
| 201 | return -EINVAL; |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * tgafb_set_par - Optional function. Alters the hardware state. |
| 208 | * @info: frame buffer structure that represents a single frame buffer |
| 209 | */ |
| 210 | static int |
| 211 | tgafb_set_par(struct fb_info *info) |
| 212 | { |
| 213 | static unsigned int const deep_presets[4] = { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 214 | 0x00004000, |
| 215 | 0x0000440d, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | 0xffffffff, |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 217 | 0x0000441d |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | }; |
| 219 | static unsigned int const rasterop_presets[4] = { |
| 220 | 0x00000003, |
| 221 | 0x00000303, |
| 222 | 0xffffffff, |
| 223 | 0x00000303 |
| 224 | }; |
| 225 | static unsigned int const mode_presets[4] = { |
Maciej W. Rozycki | c7488ce | 2007-02-12 00:54:55 -0800 | [diff] [blame] | 226 | 0x00000000, |
| 227 | 0x00000300, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | 0xffffffff, |
Maciej W. Rozycki | c7488ce | 2007-02-12 00:54:55 -0800 | [diff] [blame] | 229 | 0x00000300 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | }; |
| 231 | static unsigned int const base_addr_presets[4] = { |
| 232 | 0x00000000, |
| 233 | 0x00000001, |
| 234 | 0xffffffff, |
| 235 | 0x00000001 |
| 236 | }; |
| 237 | |
| 238 | struct tga_par *par = (struct tga_par *) info->par; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 239 | int tga_bus_pci = TGA_BUS_PCI(par->dev); |
| 240 | int tga_bus_tc = TGA_BUS_TC(par->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | u32 htimings, vtimings, pll_freq; |
| 242 | u8 tga_type; |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 243 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | |
| 245 | /* Encode video timings. */ |
| 246 | htimings = (((info->var.xres/4) & TGA_HORIZ_ACT_LSB) |
| 247 | | (((info->var.xres/4) & 0x600 << 19) & TGA_HORIZ_ACT_MSB)); |
| 248 | vtimings = (info->var.yres & TGA_VERT_ACTIVE); |
| 249 | htimings |= ((info->var.right_margin/4) << 9) & TGA_HORIZ_FP; |
| 250 | vtimings |= (info->var.lower_margin << 11) & TGA_VERT_FP; |
| 251 | htimings |= ((info->var.hsync_len/4) << 14) & TGA_HORIZ_SYNC; |
| 252 | vtimings |= (info->var.vsync_len << 16) & TGA_VERT_SYNC; |
| 253 | htimings |= ((info->var.left_margin/4) << 21) & TGA_HORIZ_BP; |
| 254 | vtimings |= (info->var.upper_margin << 22) & TGA_VERT_BP; |
| 255 | |
| 256 | if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) |
| 257 | htimings |= TGA_HORIZ_POLARITY; |
| 258 | if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) |
| 259 | vtimings |= TGA_VERT_POLARITY; |
| 260 | |
| 261 | par->htimings = htimings; |
| 262 | par->vtimings = vtimings; |
| 263 | |
| 264 | par->sync_on_green = !!(info->var.sync & FB_SYNC_ON_GREEN); |
| 265 | |
| 266 | /* Store other useful values in par. */ |
| 267 | par->xres = info->var.xres; |
| 268 | par->yres = info->var.yres; |
| 269 | par->pll_freq = pll_freq = 1000000000 / info->var.pixclock; |
| 270 | par->bits_per_pixel = info->var.bits_per_pixel; |
| 271 | |
| 272 | tga_type = par->tga_type; |
| 273 | |
| 274 | /* First, disable video. */ |
| 275 | TGA_WRITE_REG(par, TGA_VALID_VIDEO | TGA_VALID_BLANK, TGA_VALID_REG); |
| 276 | |
| 277 | /* Write the DEEP register. */ |
| 278 | while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */ |
| 279 | continue; |
| 280 | mb(); |
Maciej W. Rozycki | a524d946 | 2007-02-12 00:54:57 -0800 | [diff] [blame] | 281 | TGA_WRITE_REG(par, deep_presets[tga_type] | |
| 282 | (par->sync_on_green ? 0x0 : 0x00010000), |
| 283 | TGA_DEEP_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */ |
| 285 | continue; |
| 286 | mb(); |
| 287 | |
| 288 | /* Write some more registers. */ |
| 289 | TGA_WRITE_REG(par, rasterop_presets[tga_type], TGA_RASTEROP_REG); |
| 290 | TGA_WRITE_REG(par, mode_presets[tga_type], TGA_MODE_REG); |
| 291 | TGA_WRITE_REG(par, base_addr_presets[tga_type], TGA_BASE_ADDR_REG); |
| 292 | |
| 293 | /* Calculate & write the PLL. */ |
| 294 | tgafb_set_pll(par, pll_freq); |
| 295 | |
| 296 | /* Write some more registers. */ |
| 297 | TGA_WRITE_REG(par, 0xffffffff, TGA_PLANEMASK_REG); |
| 298 | TGA_WRITE_REG(par, 0xffffffff, TGA_PIXELMASK_REG); |
| 299 | |
| 300 | /* Init video timing regs. */ |
| 301 | TGA_WRITE_REG(par, htimings, TGA_HORIZ_REG); |
| 302 | TGA_WRITE_REG(par, vtimings, TGA_VERT_REG); |
| 303 | |
Uwe Kleine-König | 421f91d | 2010-06-11 12:17:00 +0200 | [diff] [blame] | 304 | /* Initialise RAMDAC. */ |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 305 | if (tga_type == TGA_TYPE_8PLANE && tga_bus_pci) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
| 307 | /* Init BT485 RAMDAC registers. */ |
| 308 | BT485_WRITE(par, 0xa2 | (par->sync_on_green ? 0x8 : 0x0), |
| 309 | BT485_CMD_0); |
| 310 | BT485_WRITE(par, 0x01, BT485_ADDR_PAL_WRITE); |
| 311 | BT485_WRITE(par, 0x14, BT485_CMD_3); /* cursor 64x64 */ |
| 312 | BT485_WRITE(par, 0x40, BT485_CMD_1); |
| 313 | BT485_WRITE(par, 0x20, BT485_CMD_2); /* cursor off, for now */ |
| 314 | BT485_WRITE(par, 0xff, BT485_PIXEL_MASK); |
| 315 | |
| 316 | /* Fill palette registers. */ |
| 317 | BT485_WRITE(par, 0x00, BT485_ADDR_PAL_WRITE); |
| 318 | TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG); |
| 319 | |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 320 | for (i = 0; i < 256 * 3; i += 4) { |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 321 | TGA_WRITE_REG(par, 0x55 | (BT485_DATA_PAL << 8), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | TGA_RAMDAC_REG); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 323 | TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | TGA_RAMDAC_REG); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 325 | TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | TGA_RAMDAC_REG); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 327 | TGA_WRITE_REG(par, 0x00 | (BT485_DATA_PAL << 8), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | TGA_RAMDAC_REG); |
| 329 | } |
| 330 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 331 | } else if (tga_type == TGA_TYPE_8PLANE && tga_bus_tc) { |
| 332 | |
| 333 | /* Init BT459 RAMDAC registers. */ |
| 334 | BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_0, 0x40); |
| 335 | BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_1, 0x00); |
| 336 | BT459_WRITE(par, BT459_REG_ACC, BT459_CMD_REG_2, |
| 337 | (par->sync_on_green ? 0xc0 : 0x40)); |
| 338 | |
| 339 | BT459_WRITE(par, BT459_REG_ACC, BT459_CUR_CMD_REG, 0x00); |
| 340 | |
| 341 | /* Fill the palette. */ |
| 342 | BT459_LOAD_ADDR(par, 0x0000); |
| 343 | TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG); |
| 344 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 345 | for (i = 0; i < 256 * 3; i += 4) { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 346 | TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG); |
| 347 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 348 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 349 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 350 | } |
| 351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } else { /* 24-plane or 24plusZ */ |
| 353 | |
Maciej W. Rozycki | a524d946 | 2007-02-12 00:54:57 -0800 | [diff] [blame] | 354 | /* Init BT463 RAMDAC registers. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40); |
| 356 | BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08); |
| 357 | BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2, |
Maciej W. Rozycki | a524d946 | 2007-02-12 00:54:57 -0800 | [diff] [blame] | 358 | (par->sync_on_green ? 0xc0 : 0x40)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | |
| 360 | BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff); |
| 361 | BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff); |
| 362 | BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_2, 0xff); |
| 363 | BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_3, 0x0f); |
| 364 | |
| 365 | BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_0, 0x00); |
| 366 | BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_1, 0x00); |
| 367 | BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_2, 0x00); |
| 368 | BT463_WRITE(par, BT463_REG_ACC, BT463_BLINK_MASK_3, 0x00); |
| 369 | |
| 370 | /* Fill the palette. */ |
| 371 | BT463_LOAD_ADDR(par, 0x0000); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 372 | TGA_WRITE_REG(par, BT463_PALETTE << 2, TGA_RAMDAC_SETUP_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 374 | #ifdef CONFIG_HW_CONSOLE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | for (i = 0; i < 16; i++) { |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 376 | int j = color_table[i]; |
| 377 | |
| 378 | TGA_WRITE_REG(par, default_red[j], TGA_RAMDAC_REG); |
| 379 | TGA_WRITE_REG(par, default_grn[j], TGA_RAMDAC_REG); |
| 380 | TGA_WRITE_REG(par, default_blu[j], TGA_RAMDAC_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | } |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 382 | for (i = 0; i < 512 * 3; i += 4) { |
| 383 | #else |
| 384 | for (i = 0; i < 528 * 3; i += 4) { |
| 385 | #endif |
| 386 | TGA_WRITE_REG(par, 0x55, TGA_RAMDAC_REG); |
| 387 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 388 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 389 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | } |
| 391 | |
| 392 | /* Fill window type table after start of vertical retrace. */ |
| 393 | while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01)) |
| 394 | continue; |
| 395 | TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG); |
| 396 | mb(); |
| 397 | while (!(TGA_READ_REG(par, TGA_INTR_STAT_REG) & 0x01)) |
| 398 | continue; |
| 399 | TGA_WRITE_REG(par, 0x01, TGA_INTR_STAT_REG); |
| 400 | |
| 401 | BT463_LOAD_ADDR(par, BT463_WINDOW_TYPE_BASE); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 402 | TGA_WRITE_REG(par, BT463_REG_ACC << 2, TGA_RAMDAC_SETUP_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
| 404 | for (i = 0; i < 16; i++) { |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 405 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
| 406 | TGA_WRITE_REG(par, 0x01, TGA_RAMDAC_REG); |
| 407 | TGA_WRITE_REG(par, 0x00, TGA_RAMDAC_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | } |
| 411 | |
| 412 | /* Finally, enable video scan (and pray for the monitor... :-) */ |
| 413 | TGA_WRITE_REG(par, TGA_VALID_VIDEO, TGA_VALID_REG); |
| 414 | |
| 415 | return 0; |
| 416 | } |
| 417 | |
| 418 | #define DIFFCHECK(X) \ |
| 419 | do { \ |
| 420 | if (m <= 0x3f) { \ |
| 421 | int delta = f - (TGA_PLL_BASE_FREQ * (X)) / (r << shift); \ |
| 422 | if (delta < 0) \ |
| 423 | delta = -delta; \ |
| 424 | if (delta < min_diff) \ |
| 425 | min_diff = delta, vm = m, va = a, vr = r; \ |
| 426 | } \ |
| 427 | } while (0) |
| 428 | |
| 429 | static void |
| 430 | tgafb_set_pll(struct tga_par *par, int f) |
| 431 | { |
| 432 | int n, shift, base, min_diff, target; |
| 433 | int r,a,m,vm = 34, va = 1, vr = 30; |
| 434 | |
| 435 | for (r = 0 ; r < 12 ; r++) |
| 436 | TGA_WRITE_REG(par, !r, TGA_CLOCK_REG); |
| 437 | |
| 438 | if (f > TGA_PLL_MAX_FREQ) |
| 439 | f = TGA_PLL_MAX_FREQ; |
| 440 | |
| 441 | if (f >= TGA_PLL_MAX_FREQ / 2) |
| 442 | shift = 0; |
| 443 | else if (f >= TGA_PLL_MAX_FREQ / 4) |
| 444 | shift = 1; |
| 445 | else |
| 446 | shift = 2; |
| 447 | |
| 448 | TGA_WRITE_REG(par, shift & 1, TGA_CLOCK_REG); |
| 449 | TGA_WRITE_REG(par, shift >> 1, TGA_CLOCK_REG); |
| 450 | |
| 451 | for (r = 0 ; r < 10 ; r++) |
| 452 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 453 | |
| 454 | if (f <= 120000) { |
| 455 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 456 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 457 | } |
| 458 | else if (f <= 200000) { |
| 459 | TGA_WRITE_REG(par, 1, TGA_CLOCK_REG); |
| 460 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 461 | } |
| 462 | else { |
| 463 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 464 | TGA_WRITE_REG(par, 1, TGA_CLOCK_REG); |
| 465 | } |
| 466 | |
| 467 | TGA_WRITE_REG(par, 1, TGA_CLOCK_REG); |
| 468 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 469 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 470 | TGA_WRITE_REG(par, 1, TGA_CLOCK_REG); |
| 471 | TGA_WRITE_REG(par, 0, TGA_CLOCK_REG); |
| 472 | TGA_WRITE_REG(par, 1, TGA_CLOCK_REG); |
| 473 | |
| 474 | target = (f << shift) / TGA_PLL_BASE_FREQ; |
| 475 | min_diff = TGA_PLL_MAX_FREQ; |
| 476 | |
| 477 | r = 7 / target; |
| 478 | if (!r) r = 1; |
| 479 | |
| 480 | base = target * r; |
| 481 | while (base < 449) { |
| 482 | for (n = base < 7 ? 7 : base; n < base + target && n < 449; n++) { |
| 483 | m = ((n + 3) / 7) - 1; |
| 484 | a = 0; |
| 485 | DIFFCHECK((m + 1) * 7); |
| 486 | m++; |
| 487 | DIFFCHECK((m + 1) * 7); |
| 488 | m = (n / 6) - 1; |
| 489 | if ((a = n % 6)) |
| 490 | DIFFCHECK(n); |
| 491 | } |
| 492 | r++; |
| 493 | base += target; |
| 494 | } |
| 495 | |
| 496 | vr--; |
| 497 | |
| 498 | for (r = 0; r < 8; r++) |
| 499 | TGA_WRITE_REG(par, (vm >> r) & 1, TGA_CLOCK_REG); |
| 500 | for (r = 0; r < 8 ; r++) |
| 501 | TGA_WRITE_REG(par, (va >> r) & 1, TGA_CLOCK_REG); |
| 502 | for (r = 0; r < 7 ; r++) |
| 503 | TGA_WRITE_REG(par, (vr >> r) & 1, TGA_CLOCK_REG); |
| 504 | TGA_WRITE_REG(par, ((vr >> 7) & 1)|2, TGA_CLOCK_REG); |
| 505 | } |
| 506 | |
| 507 | |
| 508 | /** |
| 509 | * tgafb_setcolreg - Optional function. Sets a color register. |
| 510 | * @regno: boolean, 0 copy local, 1 get_user() function |
| 511 | * @red: frame buffer colormap structure |
| 512 | * @green: The green value which can be up to 16 bits wide |
| 513 | * @blue: The blue value which can be up to 16 bits wide. |
| 514 | * @transp: If supported the alpha value which can be up to 16 bits wide. |
| 515 | * @info: frame buffer info structure |
| 516 | */ |
| 517 | static int |
| 518 | tgafb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, |
| 519 | unsigned transp, struct fb_info *info) |
| 520 | { |
| 521 | struct tga_par *par = (struct tga_par *) info->par; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 522 | int tga_bus_pci = TGA_BUS_PCI(par->dev); |
| 523 | int tga_bus_tc = TGA_BUS_TC(par->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
| 525 | if (regno > 255) |
| 526 | return 1; |
| 527 | red >>= 8; |
| 528 | green >>= 8; |
| 529 | blue >>= 8; |
| 530 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 531 | if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_pci) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | BT485_WRITE(par, regno, BT485_ADDR_PAL_WRITE); |
| 533 | TGA_WRITE_REG(par, BT485_DATA_PAL, TGA_RAMDAC_SETUP_REG); |
| 534 | TGA_WRITE_REG(par, red|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG); |
| 535 | TGA_WRITE_REG(par, green|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG); |
| 536 | TGA_WRITE_REG(par, blue|(BT485_DATA_PAL<<8),TGA_RAMDAC_REG); |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 537 | } else if (par->tga_type == TGA_TYPE_8PLANE && tga_bus_tc) { |
| 538 | BT459_LOAD_ADDR(par, regno); |
| 539 | TGA_WRITE_REG(par, BT459_PALETTE << 2, TGA_RAMDAC_SETUP_REG); |
| 540 | TGA_WRITE_REG(par, red, TGA_RAMDAC_REG); |
| 541 | TGA_WRITE_REG(par, green, TGA_RAMDAC_REG); |
| 542 | TGA_WRITE_REG(par, blue, TGA_RAMDAC_REG); |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 543 | } else { |
| 544 | if (regno < 16) { |
| 545 | u32 value = (regno << 16) | (regno << 8) | regno; |
| 546 | ((u32 *)info->pseudo_palette)[regno] = value; |
| 547 | } |
| 548 | BT463_LOAD_ADDR(par, regno); |
| 549 | TGA_WRITE_REG(par, BT463_PALETTE << 2, TGA_RAMDAC_SETUP_REG); |
| 550 | TGA_WRITE_REG(par, red, TGA_RAMDAC_REG); |
| 551 | TGA_WRITE_REG(par, green, TGA_RAMDAC_REG); |
| 552 | TGA_WRITE_REG(par, blue, TGA_RAMDAC_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | |
| 559 | /** |
| 560 | * tgafb_blank - Optional function. Blanks the display. |
| 561 | * @blank_mode: the blank mode we want. |
| 562 | * @info: frame buffer structure that represents a single frame buffer |
| 563 | */ |
| 564 | static int |
| 565 | tgafb_blank(int blank, struct fb_info *info) |
| 566 | { |
| 567 | struct tga_par *par = (struct tga_par *) info->par; |
| 568 | u32 vhcr, vvcr, vvvr; |
| 569 | unsigned long flags; |
| 570 | |
| 571 | local_irq_save(flags); |
| 572 | |
| 573 | vhcr = TGA_READ_REG(par, TGA_HORIZ_REG); |
| 574 | vvcr = TGA_READ_REG(par, TGA_VERT_REG); |
| 575 | vvvr = TGA_READ_REG(par, TGA_VALID_REG); |
| 576 | vvvr &= ~(TGA_VALID_VIDEO | TGA_VALID_BLANK); |
| 577 | |
| 578 | switch (blank) { |
| 579 | case FB_BLANK_UNBLANK: /* Unblanking */ |
| 580 | if (par->vesa_blanked) { |
| 581 | TGA_WRITE_REG(par, vhcr & 0xbfffffff, TGA_HORIZ_REG); |
| 582 | TGA_WRITE_REG(par, vvcr & 0xbfffffff, TGA_VERT_REG); |
| 583 | par->vesa_blanked = 0; |
| 584 | } |
| 585 | TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO, TGA_VALID_REG); |
| 586 | break; |
| 587 | |
| 588 | case FB_BLANK_NORMAL: /* Normal blanking */ |
| 589 | TGA_WRITE_REG(par, vvvr | TGA_VALID_VIDEO | TGA_VALID_BLANK, |
| 590 | TGA_VALID_REG); |
| 591 | break; |
| 592 | |
| 593 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ |
| 594 | TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG); |
| 595 | TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG); |
| 596 | par->vesa_blanked = 1; |
| 597 | break; |
| 598 | |
| 599 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ |
| 600 | TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG); |
| 601 | TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG); |
| 602 | par->vesa_blanked = 1; |
| 603 | break; |
| 604 | |
| 605 | case FB_BLANK_POWERDOWN: /* Poweroff */ |
| 606 | TGA_WRITE_REG(par, vhcr | 0x40000000, TGA_HORIZ_REG); |
| 607 | TGA_WRITE_REG(par, vvcr | 0x40000000, TGA_VERT_REG); |
| 608 | TGA_WRITE_REG(par, vvvr | TGA_VALID_BLANK, TGA_VALID_REG); |
| 609 | par->vesa_blanked = 1; |
| 610 | break; |
| 611 | } |
| 612 | |
| 613 | local_irq_restore(flags); |
| 614 | return 0; |
| 615 | } |
| 616 | |
| 617 | |
| 618 | /* |
| 619 | * Acceleration. |
| 620 | */ |
| 621 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | static void |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 623 | tgafb_mono_imageblit(struct fb_info *info, const struct fb_image *image) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | struct tga_par *par = (struct tga_par *) info->par; |
| 626 | u32 fgcolor, bgcolor, dx, dy, width, height, vxres, vyres, pixelmask; |
| 627 | unsigned long rincr, line_length, shift, pos, is8bpp; |
| 628 | unsigned long i, j; |
| 629 | const unsigned char *data; |
| 630 | void __iomem *regs_base; |
| 631 | void __iomem *fb_base; |
| 632 | |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 633 | is8bpp = info->var.bits_per_pixel == 8; |
| 634 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | dx = image->dx; |
| 636 | dy = image->dy; |
| 637 | width = image->width; |
| 638 | height = image->height; |
| 639 | vxres = info->var.xres_virtual; |
| 640 | vyres = info->var.yres_virtual; |
| 641 | line_length = info->fix.line_length; |
| 642 | rincr = (width + 7) / 8; |
| 643 | |
Maciej W. Rozycki | b738b99 | 2007-10-16 01:29:56 -0700 | [diff] [blame] | 644 | /* A shift below cannot cope with. */ |
| 645 | if (unlikely(width == 0)) |
| 646 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | /* Crop the image to the screen. */ |
| 648 | if (dx > vxres || dy > vyres) |
| 649 | return; |
| 650 | if (dx + width > vxres) |
| 651 | width = vxres - dx; |
| 652 | if (dy + height > vyres) |
| 653 | height = vyres - dy; |
| 654 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | regs_base = par->tga_regs_base; |
| 656 | fb_base = par->tga_fb_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | |
| 658 | /* Expand the color values to fill 32-bits. */ |
| 659 | /* ??? Would be nice to notice colour changes elsewhere, so |
| 660 | that we can do this only when necessary. */ |
| 661 | fgcolor = image->fg_color; |
| 662 | bgcolor = image->bg_color; |
| 663 | if (is8bpp) { |
| 664 | fgcolor |= fgcolor << 8; |
| 665 | fgcolor |= fgcolor << 16; |
| 666 | bgcolor |= bgcolor << 8; |
| 667 | bgcolor |= bgcolor << 16; |
| 668 | } else { |
| 669 | if (fgcolor < 16) |
| 670 | fgcolor = ((u32 *)info->pseudo_palette)[fgcolor]; |
| 671 | if (bgcolor < 16) |
| 672 | bgcolor = ((u32 *)info->pseudo_palette)[bgcolor]; |
| 673 | } |
| 674 | __raw_writel(fgcolor, regs_base + TGA_FOREGROUND_REG); |
| 675 | __raw_writel(bgcolor, regs_base + TGA_BACKGROUND_REG); |
| 676 | |
| 677 | /* Acquire proper alignment; set up the PIXELMASK register |
| 678 | so that we only write the proper character cell. */ |
| 679 | pos = dy * line_length; |
| 680 | if (is8bpp) { |
| 681 | pos += dx; |
| 682 | shift = pos & 3; |
| 683 | pos &= -4; |
| 684 | } else { |
| 685 | pos += dx * 4; |
| 686 | shift = (pos & 7) >> 2; |
| 687 | pos &= -8; |
| 688 | } |
| 689 | |
| 690 | data = (const unsigned char *) image->data; |
| 691 | |
| 692 | /* Enable opaque stipple mode. */ |
| 693 | __raw_writel((is8bpp |
| 694 | ? TGA_MODE_SBM_8BPP | TGA_MODE_OPAQUE_STIPPLE |
| 695 | : TGA_MODE_SBM_24BPP | TGA_MODE_OPAQUE_STIPPLE), |
| 696 | regs_base + TGA_MODE_REG); |
| 697 | |
| 698 | if (width + shift <= 32) { |
| 699 | unsigned long bwidth; |
| 700 | |
| 701 | /* Handle common case of imaging a single character, in |
Maciej W. Rozycki | b738b99 | 2007-10-16 01:29:56 -0700 | [diff] [blame] | 702 | a font less than or 32 pixels wide. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | |
Maciej W. Rozycki | b738b99 | 2007-10-16 01:29:56 -0700 | [diff] [blame] | 704 | /* Avoid a shift by 32; width > 0 implied. */ |
| 705 | pixelmask = (2ul << (width - 1)) - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | pixelmask <<= shift; |
| 707 | __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG); |
| 708 | wmb(); |
| 709 | |
| 710 | bwidth = (width + 7) / 8; |
| 711 | |
| 712 | for (i = 0; i < height; ++i) { |
| 713 | u32 mask = 0; |
| 714 | |
| 715 | /* The image data is bit big endian; we need |
| 716 | little endian. */ |
| 717 | for (j = 0; j < bwidth; ++j) |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 718 | mask |= bitrev8(data[j]) << (j * 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | |
| 720 | __raw_writel(mask << shift, fb_base + pos); |
| 721 | |
| 722 | pos += line_length; |
| 723 | data += rincr; |
| 724 | } |
| 725 | wmb(); |
| 726 | __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG); |
| 727 | } else if (shift == 0) { |
| 728 | unsigned long pos0 = pos; |
| 729 | const unsigned char *data0 = data; |
| 730 | unsigned long bincr = (is8bpp ? 8 : 8*4); |
| 731 | unsigned long bwidth; |
| 732 | |
| 733 | /* Handle another common case in which accel_putcs |
| 734 | generates a large bitmap, which happens to be aligned. |
| 735 | Allow the tail to be misaligned. This case is |
| 736 | interesting because we've not got to hold partial |
| 737 | bytes across the words being written. */ |
| 738 | |
| 739 | wmb(); |
| 740 | |
| 741 | bwidth = (width / 8) & -4; |
| 742 | for (i = 0; i < height; ++i) { |
| 743 | for (j = 0; j < bwidth; j += 4) { |
| 744 | u32 mask = 0; |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 745 | mask |= bitrev8(data[j+0]) << (0 * 8); |
| 746 | mask |= bitrev8(data[j+1]) << (1 * 8); |
| 747 | mask |= bitrev8(data[j+2]) << (2 * 8); |
| 748 | mask |= bitrev8(data[j+3]) << (3 * 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | __raw_writel(mask, fb_base + pos + j*bincr); |
| 750 | } |
| 751 | pos += line_length; |
| 752 | data += rincr; |
| 753 | } |
| 754 | wmb(); |
| 755 | |
| 756 | pixelmask = (1ul << (width & 31)) - 1; |
| 757 | if (pixelmask) { |
| 758 | __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG); |
| 759 | wmb(); |
| 760 | |
| 761 | pos = pos0 + bwidth*bincr; |
| 762 | data = data0 + bwidth; |
| 763 | bwidth = ((width & 31) + 7) / 8; |
| 764 | |
| 765 | for (i = 0; i < height; ++i) { |
| 766 | u32 mask = 0; |
| 767 | for (j = 0; j < bwidth; ++j) |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 768 | mask |= bitrev8(data[j]) << (j * 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | __raw_writel(mask, fb_base + pos); |
| 770 | pos += line_length; |
| 771 | data += rincr; |
| 772 | } |
| 773 | wmb(); |
| 774 | __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG); |
| 775 | } |
| 776 | } else { |
| 777 | unsigned long pos0 = pos; |
| 778 | const unsigned char *data0 = data; |
| 779 | unsigned long bincr = (is8bpp ? 8 : 8*4); |
| 780 | unsigned long bwidth; |
| 781 | |
| 782 | /* Finally, handle the generic case of misaligned start. |
| 783 | Here we split the write into 16-bit spans. This allows |
| 784 | us to use only one pixel mask, instead of four as would |
| 785 | be required by writing 24-bit spans. */ |
| 786 | |
| 787 | pixelmask = 0xffff << shift; |
| 788 | __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG); |
| 789 | wmb(); |
| 790 | |
| 791 | bwidth = (width / 8) & -2; |
| 792 | for (i = 0; i < height; ++i) { |
| 793 | for (j = 0; j < bwidth; j += 2) { |
| 794 | u32 mask = 0; |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 795 | mask |= bitrev8(data[j+0]) << (0 * 8); |
| 796 | mask |= bitrev8(data[j+1]) << (1 * 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | mask <<= shift; |
| 798 | __raw_writel(mask, fb_base + pos + j*bincr); |
| 799 | } |
| 800 | pos += line_length; |
| 801 | data += rincr; |
| 802 | } |
| 803 | wmb(); |
| 804 | |
| 805 | pixelmask = ((1ul << (width & 15)) - 1) << shift; |
| 806 | if (pixelmask) { |
| 807 | __raw_writel(pixelmask, regs_base + TGA_PIXELMASK_REG); |
| 808 | wmb(); |
| 809 | |
| 810 | pos = pos0 + bwidth*bincr; |
| 811 | data = data0 + bwidth; |
| 812 | bwidth = (width & 15) > 8; |
| 813 | |
| 814 | for (i = 0; i < height; ++i) { |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 815 | u32 mask = bitrev8(data[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | if (bwidth) |
Akinobu Mita | 1c66768 | 2006-12-08 02:36:26 -0800 | [diff] [blame] | 817 | mask |= bitrev8(data[1]) << 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | mask <<= shift; |
| 819 | __raw_writel(mask, fb_base + pos); |
| 820 | pos += line_length; |
| 821 | data += rincr; |
| 822 | } |
| 823 | wmb(); |
| 824 | } |
| 825 | __raw_writel(0xffffffff, regs_base + TGA_PIXELMASK_REG); |
| 826 | } |
| 827 | |
| 828 | /* Disable opaque stipple mode. */ |
| 829 | __raw_writel((is8bpp |
| 830 | ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE |
| 831 | : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE), |
| 832 | regs_base + TGA_MODE_REG); |
| 833 | } |
| 834 | |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 835 | static void |
| 836 | tgafb_clut_imageblit(struct fb_info *info, const struct fb_image *image) |
| 837 | { |
| 838 | struct tga_par *par = (struct tga_par *) info->par; |
| 839 | u32 color, dx, dy, width, height, vxres, vyres; |
| 840 | u32 *palette = ((u32 *)info->pseudo_palette); |
| 841 | unsigned long pos, line_length, i, j; |
| 842 | const unsigned char *data; |
Al Viro | 0bd8496 | 2007-07-26 17:36:09 +0100 | [diff] [blame] | 843 | void __iomem *regs_base, *fb_base; |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 844 | |
| 845 | dx = image->dx; |
| 846 | dy = image->dy; |
| 847 | width = image->width; |
| 848 | height = image->height; |
| 849 | vxres = info->var.xres_virtual; |
| 850 | vyres = info->var.yres_virtual; |
| 851 | line_length = info->fix.line_length; |
| 852 | |
| 853 | /* Crop the image to the screen. */ |
| 854 | if (dx > vxres || dy > vyres) |
| 855 | return; |
| 856 | if (dx + width > vxres) |
| 857 | width = vxres - dx; |
| 858 | if (dy + height > vyres) |
| 859 | height = vyres - dy; |
| 860 | |
| 861 | regs_base = par->tga_regs_base; |
| 862 | fb_base = par->tga_fb_base; |
| 863 | |
| 864 | pos = dy * line_length + (dx * 4); |
| 865 | data = image->data; |
| 866 | |
| 867 | /* Now copy the image, color_expanding via the palette. */ |
| 868 | for (i = 0; i < height; i++) { |
| 869 | for (j = 0; j < width; j++) { |
| 870 | color = palette[*data++]; |
| 871 | __raw_writel(color, fb_base + pos + j*4); |
| 872 | } |
| 873 | pos += line_length; |
| 874 | } |
| 875 | } |
| 876 | |
| 877 | /** |
| 878 | * tgafb_imageblit - REQUIRED function. Can use generic routines if |
| 879 | * non acclerated hardware and packed pixel based. |
| 880 | * Copies a image from system memory to the screen. |
| 881 | * |
| 882 | * @info: frame buffer structure that represents a single frame buffer |
| 883 | * @image: structure defining the image. |
| 884 | */ |
| 885 | static void |
| 886 | tgafb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 887 | { |
| 888 | unsigned int is8bpp = info->var.bits_per_pixel == 8; |
| 889 | |
| 890 | /* If a mono image, regardless of FB depth, go do it. */ |
| 891 | if (image->depth == 1) { |
| 892 | tgafb_mono_imageblit(info, image); |
| 893 | return; |
| 894 | } |
| 895 | |
| 896 | /* For copies that aren't pixel expansion, there's little we |
| 897 | can do better than the generic code. */ |
| 898 | /* ??? There is a DMA write mode; I wonder if that could be |
| 899 | made to pull the data from the image buffer... */ |
| 900 | if (image->depth == info->var.bits_per_pixel) { |
| 901 | cfb_imageblit(info, image); |
| 902 | return; |
| 903 | } |
| 904 | |
| 905 | /* If 24-plane FB and the image is 8-plane with CLUT, we can do it. */ |
| 906 | if (!is8bpp && image->depth == 8) { |
| 907 | tgafb_clut_imageblit(info, image); |
| 908 | return; |
| 909 | } |
| 910 | |
| 911 | /* Silently return... */ |
| 912 | } |
| 913 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | /** |
| 915 | * tgafb_fillrect - REQUIRED function. Can use generic routines if |
| 916 | * non acclerated hardware and packed pixel based. |
| 917 | * Draws a rectangle on the screen. |
| 918 | * |
| 919 | * @info: frame buffer structure that represents a single frame buffer |
| 920 | * @rect: structure defining the rectagle and operation. |
| 921 | */ |
| 922 | static void |
| 923 | tgafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 924 | { |
| 925 | struct tga_par *par = (struct tga_par *) info->par; |
| 926 | int is8bpp = info->var.bits_per_pixel == 8; |
| 927 | u32 dx, dy, width, height, vxres, vyres, color; |
| 928 | unsigned long pos, align, line_length, i, j; |
| 929 | void __iomem *regs_base; |
| 930 | void __iomem *fb_base; |
| 931 | |
| 932 | dx = rect->dx; |
| 933 | dy = rect->dy; |
| 934 | width = rect->width; |
| 935 | height = rect->height; |
| 936 | vxres = info->var.xres_virtual; |
| 937 | vyres = info->var.yres_virtual; |
| 938 | line_length = info->fix.line_length; |
| 939 | regs_base = par->tga_regs_base; |
| 940 | fb_base = par->tga_fb_base; |
| 941 | |
| 942 | /* Crop the rectangle to the screen. */ |
| 943 | if (dx > vxres || dy > vyres || !width || !height) |
| 944 | return; |
| 945 | if (dx + width > vxres) |
| 946 | width = vxres - dx; |
| 947 | if (dy + height > vyres) |
| 948 | height = vyres - dy; |
| 949 | |
| 950 | pos = dy * line_length + dx * (is8bpp ? 1 : 4); |
| 951 | |
| 952 | /* ??? We could implement ROP_XOR with opaque fill mode |
| 953 | and a RasterOp setting of GXxor, but as far as I can |
| 954 | tell, this mode is not actually used in the kernel. |
| 955 | Thus I am ignoring it for now. */ |
| 956 | if (rect->rop != ROP_COPY) { |
| 957 | cfb_fillrect(info, rect); |
| 958 | return; |
| 959 | } |
| 960 | |
| 961 | /* Expand the color value to fill 8 pixels. */ |
| 962 | color = rect->color; |
| 963 | if (is8bpp) { |
| 964 | color |= color << 8; |
| 965 | color |= color << 16; |
| 966 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG); |
| 967 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG); |
| 968 | } else { |
| 969 | if (color < 16) |
| 970 | color = ((u32 *)info->pseudo_palette)[color]; |
| 971 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR0_REG); |
| 972 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR1_REG); |
| 973 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR2_REG); |
| 974 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR3_REG); |
| 975 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR4_REG); |
| 976 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR5_REG); |
| 977 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR6_REG); |
| 978 | __raw_writel(color, regs_base + TGA_BLOCK_COLOR7_REG); |
| 979 | } |
| 980 | |
| 981 | /* The DATA register holds the fill mask for block fill mode. |
| 982 | Since we're not stippling, this is all ones. */ |
| 983 | __raw_writel(0xffffffff, regs_base + TGA_DATA_REG); |
| 984 | |
| 985 | /* Enable block fill mode. */ |
| 986 | __raw_writel((is8bpp |
| 987 | ? TGA_MODE_SBM_8BPP | TGA_MODE_BLOCK_FILL |
| 988 | : TGA_MODE_SBM_24BPP | TGA_MODE_BLOCK_FILL), |
| 989 | regs_base + TGA_MODE_REG); |
| 990 | wmb(); |
| 991 | |
| 992 | /* We can fill 2k pixels per operation. Notice blocks that fit |
| 993 | the width of the screen so that we can take advantage of this |
| 994 | and fill more than one line per write. */ |
| 995 | if (width == line_length) |
| 996 | width *= height, height = 1; |
| 997 | |
| 998 | /* The write into the frame buffer must be aligned to 4 bytes, |
| 999 | but we are allowed to encode the offset within the word in |
| 1000 | the data word written. */ |
| 1001 | align = (pos & 3) << 16; |
| 1002 | pos &= -4; |
| 1003 | |
| 1004 | if (width <= 2048) { |
| 1005 | u32 data; |
| 1006 | |
| 1007 | data = (width - 1) | align; |
| 1008 | |
| 1009 | for (i = 0; i < height; ++i) { |
| 1010 | __raw_writel(data, fb_base + pos); |
| 1011 | pos += line_length; |
| 1012 | } |
| 1013 | } else { |
| 1014 | unsigned long Bpp = (is8bpp ? 1 : 4); |
| 1015 | unsigned long nwidth = width & -2048; |
| 1016 | u32 fdata, ldata; |
| 1017 | |
| 1018 | fdata = (2048 - 1) | align; |
| 1019 | ldata = ((width & 2047) - 1) | align; |
| 1020 | |
| 1021 | for (i = 0; i < height; ++i) { |
| 1022 | for (j = 0; j < nwidth; j += 2048) |
| 1023 | __raw_writel(fdata, fb_base + pos + j*Bpp); |
| 1024 | if (j < width) |
| 1025 | __raw_writel(ldata, fb_base + pos + j*Bpp); |
| 1026 | pos += line_length; |
| 1027 | } |
| 1028 | } |
| 1029 | wmb(); |
| 1030 | |
| 1031 | /* Disable block fill mode. */ |
| 1032 | __raw_writel((is8bpp |
| 1033 | ? TGA_MODE_SBM_8BPP | TGA_MODE_SIMPLE |
| 1034 | : TGA_MODE_SBM_24BPP | TGA_MODE_SIMPLE), |
| 1035 | regs_base + TGA_MODE_REG); |
| 1036 | } |
| 1037 | |
| 1038 | /** |
| 1039 | * tgafb_copyarea - REQUIRED function. Can use generic routines if |
| 1040 | * non acclerated hardware and packed pixel based. |
| 1041 | * Copies on area of the screen to another area. |
| 1042 | * |
| 1043 | * @info: frame buffer structure that represents a single frame buffer |
| 1044 | * @area: structure defining the source and destination. |
| 1045 | */ |
| 1046 | |
| 1047 | /* Handle the special case of copying entire lines, e.g. during scrolling. |
| 1048 | We can avoid a lot of needless computation in this case. In the 8bpp |
| 1049 | case we need to use the COPY64 registers instead of mask writes into |
| 1050 | the frame buffer to achieve maximum performance. */ |
| 1051 | |
| 1052 | static inline void |
| 1053 | copyarea_line_8bpp(struct fb_info *info, u32 dy, u32 sy, |
| 1054 | u32 height, u32 width) |
| 1055 | { |
| 1056 | struct tga_par *par = (struct tga_par *) info->par; |
| 1057 | void __iomem *tga_regs = par->tga_regs_base; |
| 1058 | unsigned long dpos, spos, i, n64; |
| 1059 | |
| 1060 | /* Set up the MODE and PIXELSHIFT registers. */ |
| 1061 | __raw_writel(TGA_MODE_SBM_8BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG); |
| 1062 | __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG); |
| 1063 | wmb(); |
| 1064 | |
| 1065 | n64 = (height * width) / 64; |
| 1066 | |
Maciej W. Rozycki | 36f7140 | 2007-02-12 00:54:53 -0800 | [diff] [blame] | 1067 | if (sy < dy) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | spos = (sy + height) * width; |
| 1069 | dpos = (dy + height) * width; |
| 1070 | |
| 1071 | for (i = 0; i < n64; ++i) { |
| 1072 | spos -= 64; |
| 1073 | dpos -= 64; |
| 1074 | __raw_writel(spos, tga_regs+TGA_COPY64_SRC); |
| 1075 | wmb(); |
| 1076 | __raw_writel(dpos, tga_regs+TGA_COPY64_DST); |
| 1077 | wmb(); |
| 1078 | } |
| 1079 | } else { |
| 1080 | spos = sy * width; |
| 1081 | dpos = dy * width; |
| 1082 | |
| 1083 | for (i = 0; i < n64; ++i) { |
| 1084 | __raw_writel(spos, tga_regs+TGA_COPY64_SRC); |
| 1085 | wmb(); |
| 1086 | __raw_writel(dpos, tga_regs+TGA_COPY64_DST); |
| 1087 | wmb(); |
| 1088 | spos += 64; |
| 1089 | dpos += 64; |
| 1090 | } |
| 1091 | } |
| 1092 | |
| 1093 | /* Reset the MODE register to normal. */ |
| 1094 | __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG); |
| 1095 | } |
| 1096 | |
| 1097 | static inline void |
| 1098 | copyarea_line_32bpp(struct fb_info *info, u32 dy, u32 sy, |
| 1099 | u32 height, u32 width) |
| 1100 | { |
| 1101 | struct tga_par *par = (struct tga_par *) info->par; |
| 1102 | void __iomem *tga_regs = par->tga_regs_base; |
| 1103 | void __iomem *tga_fb = par->tga_fb_base; |
| 1104 | void __iomem *src; |
| 1105 | void __iomem *dst; |
| 1106 | unsigned long i, n16; |
| 1107 | |
| 1108 | /* Set up the MODE and PIXELSHIFT registers. */ |
| 1109 | __raw_writel(TGA_MODE_SBM_24BPP | TGA_MODE_COPY, tga_regs+TGA_MODE_REG); |
| 1110 | __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG); |
| 1111 | wmb(); |
| 1112 | |
| 1113 | n16 = (height * width) / 16; |
| 1114 | |
Maciej W. Rozycki | 36f7140 | 2007-02-12 00:54:53 -0800 | [diff] [blame] | 1115 | if (sy < dy) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | src = tga_fb + (sy + height) * width * 4; |
| 1117 | dst = tga_fb + (dy + height) * width * 4; |
| 1118 | |
| 1119 | for (i = 0; i < n16; ++i) { |
| 1120 | src -= 64; |
| 1121 | dst -= 64; |
| 1122 | __raw_writel(0xffff, src); |
| 1123 | wmb(); |
| 1124 | __raw_writel(0xffff, dst); |
| 1125 | wmb(); |
| 1126 | } |
| 1127 | } else { |
| 1128 | src = tga_fb + sy * width * 4; |
| 1129 | dst = tga_fb + dy * width * 4; |
| 1130 | |
| 1131 | for (i = 0; i < n16; ++i) { |
| 1132 | __raw_writel(0xffff, src); |
| 1133 | wmb(); |
| 1134 | __raw_writel(0xffff, dst); |
| 1135 | wmb(); |
| 1136 | src += 64; |
| 1137 | dst += 64; |
| 1138 | } |
| 1139 | } |
| 1140 | |
| 1141 | /* Reset the MODE register to normal. */ |
| 1142 | __raw_writel(TGA_MODE_SBM_24BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG); |
| 1143 | } |
| 1144 | |
| 1145 | /* The general case of forward copy in 8bpp mode. */ |
| 1146 | static inline void |
| 1147 | copyarea_foreward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy, |
| 1148 | u32 height, u32 width, u32 line_length) |
| 1149 | { |
| 1150 | struct tga_par *par = (struct tga_par *) info->par; |
| 1151 | unsigned long i, copied, left; |
| 1152 | unsigned long dpos, spos, dalign, salign, yincr; |
| 1153 | u32 smask_first, dmask_first, dmask_last; |
| 1154 | int pixel_shift, need_prime, need_second; |
| 1155 | unsigned long n64, n32, xincr_first; |
| 1156 | void __iomem *tga_regs; |
| 1157 | void __iomem *tga_fb; |
| 1158 | |
| 1159 | yincr = line_length; |
| 1160 | if (dy > sy) { |
| 1161 | dy += height - 1; |
| 1162 | sy += height - 1; |
| 1163 | yincr = -yincr; |
| 1164 | } |
| 1165 | |
| 1166 | /* Compute the offsets and alignments in the frame buffer. |
| 1167 | More than anything else, these control how we do copies. */ |
| 1168 | dpos = dy * line_length + dx; |
| 1169 | spos = sy * line_length + sx; |
| 1170 | dalign = dpos & 7; |
| 1171 | salign = spos & 7; |
| 1172 | dpos &= -8; |
| 1173 | spos &= -8; |
| 1174 | |
| 1175 | /* Compute the value for the PIXELSHIFT register. This controls |
| 1176 | both non-co-aligned source and destination and copy direction. */ |
| 1177 | if (dalign >= salign) |
| 1178 | pixel_shift = dalign - salign; |
| 1179 | else |
| 1180 | pixel_shift = 8 - (salign - dalign); |
| 1181 | |
| 1182 | /* Figure out if we need an additional priming step for the |
| 1183 | residue register. */ |
| 1184 | need_prime = (salign > dalign); |
| 1185 | if (need_prime) |
| 1186 | dpos -= 8; |
| 1187 | |
| 1188 | /* Begin by copying the leading unaligned destination. Copy enough |
| 1189 | to make the next destination address 32-byte aligned. */ |
| 1190 | copied = 32 - (dalign + (dpos & 31)); |
| 1191 | if (copied == 32) |
| 1192 | copied = 0; |
| 1193 | xincr_first = (copied + 7) & -8; |
| 1194 | smask_first = dmask_first = (1ul << copied) - 1; |
| 1195 | smask_first <<= salign; |
| 1196 | dmask_first <<= dalign + need_prime*8; |
| 1197 | if (need_prime && copied > 24) |
| 1198 | copied -= 8; |
| 1199 | left = width - copied; |
| 1200 | |
| 1201 | /* Care for small copies. */ |
| 1202 | if (copied > width) { |
| 1203 | u32 t; |
| 1204 | t = (1ul << width) - 1; |
| 1205 | t <<= dalign + need_prime*8; |
| 1206 | dmask_first &= t; |
| 1207 | left = 0; |
| 1208 | } |
| 1209 | |
| 1210 | /* Attempt to use 64-byte copies. This is only possible if the |
| 1211 | source and destination are co-aligned at 64 bytes. */ |
| 1212 | n64 = need_second = 0; |
| 1213 | if ((dpos & 63) == (spos & 63) |
| 1214 | && (height == 1 || line_length % 64 == 0)) { |
| 1215 | /* We may need a 32-byte copy to ensure 64 byte alignment. */ |
| 1216 | need_second = (dpos + xincr_first) & 63; |
| 1217 | if ((need_second & 32) != need_second) |
| 1218 | printk(KERN_ERR "tgafb: need_second wrong\n"); |
| 1219 | if (left >= need_second + 64) { |
| 1220 | left -= need_second; |
| 1221 | n64 = left / 64; |
| 1222 | left %= 64; |
| 1223 | } else |
| 1224 | need_second = 0; |
| 1225 | } |
| 1226 | |
| 1227 | /* Copy trailing full 32-byte sections. This will be the main |
| 1228 | loop if the 64 byte loop can't be used. */ |
| 1229 | n32 = left / 32; |
| 1230 | left %= 32; |
| 1231 | |
| 1232 | /* Copy the trailing unaligned destination. */ |
| 1233 | dmask_last = (1ul << left) - 1; |
| 1234 | |
| 1235 | tga_regs = par->tga_regs_base; |
| 1236 | tga_fb = par->tga_fb_base; |
| 1237 | |
| 1238 | /* Set up the MODE and PIXELSHIFT registers. */ |
| 1239 | __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG); |
| 1240 | __raw_writel(pixel_shift, tga_regs+TGA_PIXELSHIFT_REG); |
| 1241 | wmb(); |
| 1242 | |
| 1243 | for (i = 0; i < height; ++i) { |
| 1244 | unsigned long j; |
| 1245 | void __iomem *sfb; |
| 1246 | void __iomem *dfb; |
| 1247 | |
| 1248 | sfb = tga_fb + spos; |
| 1249 | dfb = tga_fb + dpos; |
| 1250 | if (dmask_first) { |
| 1251 | __raw_writel(smask_first, sfb); |
| 1252 | wmb(); |
| 1253 | __raw_writel(dmask_first, dfb); |
| 1254 | wmb(); |
| 1255 | sfb += xincr_first; |
| 1256 | dfb += xincr_first; |
| 1257 | } |
| 1258 | |
| 1259 | if (need_second) { |
| 1260 | __raw_writel(0xffffffff, sfb); |
| 1261 | wmb(); |
| 1262 | __raw_writel(0xffffffff, dfb); |
| 1263 | wmb(); |
| 1264 | sfb += 32; |
| 1265 | dfb += 32; |
| 1266 | } |
| 1267 | |
| 1268 | if (n64 && (((unsigned long)sfb | (unsigned long)dfb) & 63)) |
| 1269 | printk(KERN_ERR |
| 1270 | "tgafb: misaligned copy64 (s:%p, d:%p)\n", |
| 1271 | sfb, dfb); |
| 1272 | |
| 1273 | for (j = 0; j < n64; ++j) { |
| 1274 | __raw_writel(sfb - tga_fb, tga_regs+TGA_COPY64_SRC); |
| 1275 | wmb(); |
| 1276 | __raw_writel(dfb - tga_fb, tga_regs+TGA_COPY64_DST); |
| 1277 | wmb(); |
| 1278 | sfb += 64; |
| 1279 | dfb += 64; |
| 1280 | } |
| 1281 | |
| 1282 | for (j = 0; j < n32; ++j) { |
| 1283 | __raw_writel(0xffffffff, sfb); |
| 1284 | wmb(); |
| 1285 | __raw_writel(0xffffffff, dfb); |
| 1286 | wmb(); |
| 1287 | sfb += 32; |
| 1288 | dfb += 32; |
| 1289 | } |
| 1290 | |
| 1291 | if (dmask_last) { |
| 1292 | __raw_writel(0xffffffff, sfb); |
| 1293 | wmb(); |
| 1294 | __raw_writel(dmask_last, dfb); |
| 1295 | wmb(); |
| 1296 | } |
| 1297 | |
| 1298 | spos += yincr; |
| 1299 | dpos += yincr; |
| 1300 | } |
| 1301 | |
| 1302 | /* Reset the MODE register to normal. */ |
| 1303 | __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG); |
| 1304 | } |
| 1305 | |
| 1306 | /* The (almost) general case of backward copy in 8bpp mode. */ |
| 1307 | static inline void |
| 1308 | copyarea_backward_8bpp(struct fb_info *info, u32 dx, u32 dy, u32 sx, u32 sy, |
| 1309 | u32 height, u32 width, u32 line_length, |
| 1310 | const struct fb_copyarea *area) |
| 1311 | { |
| 1312 | struct tga_par *par = (struct tga_par *) info->par; |
| 1313 | unsigned long i, left, yincr; |
| 1314 | unsigned long depos, sepos, dealign, sealign; |
| 1315 | u32 mask_first, mask_last; |
| 1316 | unsigned long n32; |
| 1317 | void __iomem *tga_regs; |
| 1318 | void __iomem *tga_fb; |
| 1319 | |
| 1320 | yincr = line_length; |
| 1321 | if (dy > sy) { |
| 1322 | dy += height - 1; |
| 1323 | sy += height - 1; |
| 1324 | yincr = -yincr; |
| 1325 | } |
| 1326 | |
| 1327 | /* Compute the offsets and alignments in the frame buffer. |
| 1328 | More than anything else, these control how we do copies. */ |
| 1329 | depos = dy * line_length + dx + width; |
| 1330 | sepos = sy * line_length + sx + width; |
| 1331 | dealign = depos & 7; |
| 1332 | sealign = sepos & 7; |
| 1333 | |
| 1334 | /* ??? The documentation appears to be incorrect (or very |
| 1335 | misleading) wrt how pixel shifting works in backward copy |
| 1336 | mode, i.e. when PIXELSHIFT is negative. I give up for now. |
| 1337 | Do handle the common case of co-aligned backward copies, |
| 1338 | but frob everything else back on generic code. */ |
| 1339 | if (dealign != sealign) { |
| 1340 | cfb_copyarea(info, area); |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | /* We begin the copy with the trailing pixels of the |
| 1345 | unaligned destination. */ |
| 1346 | mask_first = (1ul << dealign) - 1; |
| 1347 | left = width - dealign; |
| 1348 | |
| 1349 | /* Care for small copies. */ |
| 1350 | if (dealign > width) { |
| 1351 | mask_first ^= (1ul << (dealign - width)) - 1; |
| 1352 | left = 0; |
| 1353 | } |
| 1354 | |
| 1355 | /* Next copy full words at a time. */ |
| 1356 | n32 = left / 32; |
| 1357 | left %= 32; |
| 1358 | |
| 1359 | /* Finally copy the unaligned head of the span. */ |
| 1360 | mask_last = -1 << (32 - left); |
| 1361 | |
| 1362 | tga_regs = par->tga_regs_base; |
| 1363 | tga_fb = par->tga_fb_base; |
| 1364 | |
| 1365 | /* Set up the MODE and PIXELSHIFT registers. */ |
| 1366 | __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_COPY, tga_regs+TGA_MODE_REG); |
| 1367 | __raw_writel(0, tga_regs+TGA_PIXELSHIFT_REG); |
| 1368 | wmb(); |
| 1369 | |
| 1370 | for (i = 0; i < height; ++i) { |
| 1371 | unsigned long j; |
| 1372 | void __iomem *sfb; |
| 1373 | void __iomem *dfb; |
| 1374 | |
| 1375 | sfb = tga_fb + sepos; |
| 1376 | dfb = tga_fb + depos; |
| 1377 | if (mask_first) { |
| 1378 | __raw_writel(mask_first, sfb); |
| 1379 | wmb(); |
| 1380 | __raw_writel(mask_first, dfb); |
| 1381 | wmb(); |
| 1382 | } |
| 1383 | |
| 1384 | for (j = 0; j < n32; ++j) { |
| 1385 | sfb -= 32; |
| 1386 | dfb -= 32; |
| 1387 | __raw_writel(0xffffffff, sfb); |
| 1388 | wmb(); |
| 1389 | __raw_writel(0xffffffff, dfb); |
| 1390 | wmb(); |
| 1391 | } |
| 1392 | |
| 1393 | if (mask_last) { |
| 1394 | sfb -= 32; |
| 1395 | dfb -= 32; |
| 1396 | __raw_writel(mask_last, sfb); |
| 1397 | wmb(); |
| 1398 | __raw_writel(mask_last, dfb); |
| 1399 | wmb(); |
| 1400 | } |
| 1401 | |
| 1402 | sepos += yincr; |
| 1403 | depos += yincr; |
| 1404 | } |
| 1405 | |
| 1406 | /* Reset the MODE register to normal. */ |
| 1407 | __raw_writel(TGA_MODE_SBM_8BPP|TGA_MODE_SIMPLE, tga_regs+TGA_MODE_REG); |
| 1408 | } |
| 1409 | |
| 1410 | static void |
| 1411 | tgafb_copyarea(struct fb_info *info, const struct fb_copyarea *area) |
| 1412 | { |
| 1413 | unsigned long dx, dy, width, height, sx, sy, vxres, vyres; |
| 1414 | unsigned long line_length, bpp; |
| 1415 | |
| 1416 | dx = area->dx; |
| 1417 | dy = area->dy; |
| 1418 | width = area->width; |
| 1419 | height = area->height; |
| 1420 | sx = area->sx; |
| 1421 | sy = area->sy; |
| 1422 | vxres = info->var.xres_virtual; |
| 1423 | vyres = info->var.yres_virtual; |
| 1424 | line_length = info->fix.line_length; |
| 1425 | |
| 1426 | /* The top left corners must be in the virtual screen. */ |
| 1427 | if (dx > vxres || sx > vxres || dy > vyres || sy > vyres) |
| 1428 | return; |
| 1429 | |
| 1430 | /* Clip the destination. */ |
| 1431 | if (dx + width > vxres) |
| 1432 | width = vxres - dx; |
| 1433 | if (dy + height > vyres) |
| 1434 | height = vyres - dy; |
| 1435 | |
| 1436 | /* The source must be completely inside the virtual screen. */ |
| 1437 | if (sx + width > vxres || sy + height > vyres) |
| 1438 | return; |
| 1439 | |
| 1440 | bpp = info->var.bits_per_pixel; |
| 1441 | |
| 1442 | /* Detect copies of the entire line. */ |
| 1443 | if (width * (bpp >> 3) == line_length) { |
| 1444 | if (bpp == 8) |
| 1445 | copyarea_line_8bpp(info, dy, sy, height, width); |
| 1446 | else |
| 1447 | copyarea_line_32bpp(info, dy, sy, height, width); |
| 1448 | } |
| 1449 | |
| 1450 | /* ??? The documentation is unclear to me exactly how the pixelshift |
| 1451 | register works in 32bpp mode. Since I don't have hardware to test, |
| 1452 | give up for now and fall back on the generic routines. */ |
| 1453 | else if (bpp == 32) |
| 1454 | cfb_copyarea(info, area); |
| 1455 | |
| 1456 | /* Detect overlapping source and destination that requires |
| 1457 | a backward copy. */ |
| 1458 | else if (dy == sy && dx > sx && dx < sx + width) |
| 1459 | copyarea_backward_8bpp(info, dx, dy, sx, sy, height, |
| 1460 | width, line_length, area); |
| 1461 | else |
| 1462 | copyarea_foreward_8bpp(info, dx, dy, sx, sy, height, |
| 1463 | width, line_length); |
| 1464 | } |
| 1465 | |
| 1466 | |
| 1467 | /* |
| 1468 | * Initialisation |
| 1469 | */ |
| 1470 | |
| 1471 | static void |
| 1472 | tgafb_init_fix(struct fb_info *info) |
| 1473 | { |
| 1474 | struct tga_par *par = (struct tga_par *)info->par; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1475 | int tga_bus_pci = TGA_BUS_PCI(par->dev); |
| 1476 | int tga_bus_tc = TGA_BUS_TC(par->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | u8 tga_type = par->tga_type; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1478 | const char *tga_type_name = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | |
| 1480 | switch (tga_type) { |
| 1481 | case TGA_TYPE_8PLANE: |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1482 | if (tga_bus_pci) |
| 1483 | tga_type_name = "Digital ZLXp-E1"; |
| 1484 | if (tga_bus_tc) |
| 1485 | tga_type_name = "Digital ZLX-E1"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | break; |
| 1487 | case TGA_TYPE_24PLANE: |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1488 | if (tga_bus_pci) |
| 1489 | tga_type_name = "Digital ZLXp-E2"; |
| 1490 | if (tga_bus_tc) |
| 1491 | tga_type_name = "Digital ZLX-E2"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1492 | break; |
| 1493 | case TGA_TYPE_24PLUSZ: |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1494 | if (tga_bus_pci) |
| 1495 | tga_type_name = "Digital ZLXp-E3"; |
| 1496 | if (tga_bus_tc) |
| 1497 | tga_type_name = "Digital ZLX-E3"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | break; |
| 1499 | default: |
| 1500 | tga_type_name = "Unknown"; |
| 1501 | break; |
| 1502 | } |
| 1503 | |
| 1504 | strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id)); |
| 1505 | |
| 1506 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
| 1507 | info->fix.type_aux = 0; |
| 1508 | info->fix.visual = (tga_type == TGA_TYPE_8PLANE |
| 1509 | ? FB_VISUAL_PSEUDOCOLOR |
Maciej W. Rozycki | be60118 | 2007-02-12 00:54:54 -0800 | [diff] [blame] | 1510 | : FB_VISUAL_DIRECTCOLOR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | |
| 1512 | info->fix.line_length = par->xres * (par->bits_per_pixel >> 3); |
| 1513 | info->fix.smem_start = (size_t) par->tga_fb_base; |
| 1514 | info->fix.smem_len = info->fix.line_length * par->yres; |
| 1515 | info->fix.mmio_start = (size_t) par->tga_regs_base; |
| 1516 | info->fix.mmio_len = 512; |
| 1517 | |
| 1518 | info->fix.xpanstep = 0; |
| 1519 | info->fix.ypanstep = 0; |
| 1520 | info->fix.ywrapstep = 0; |
| 1521 | |
| 1522 | info->fix.accel = FB_ACCEL_DEC_TGA; |
James Simmons | 28b230e | 2007-05-08 00:37:50 -0700 | [diff] [blame] | 1523 | |
| 1524 | /* |
| 1525 | * These are needed by fb_set_logo_truepalette(), so we |
| 1526 | * set them here for 24-plane cards. |
| 1527 | */ |
| 1528 | if (tga_type != TGA_TYPE_8PLANE) { |
| 1529 | info->var.red.length = 8; |
| 1530 | info->var.green.length = 8; |
| 1531 | info->var.blue.length = 8; |
| 1532 | info->var.red.offset = 16; |
| 1533 | info->var.green.offset = 8; |
| 1534 | info->var.blue.offset = 0; |
| 1535 | } |
| 1536 | } |
| 1537 | |
| 1538 | static int tgafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
| 1539 | { |
| 1540 | /* We just use this to catch switches out of graphics mode. */ |
| 1541 | tgafb_set_par(info); /* A bit of overkill for BASE_ADDR reset. */ |
| 1542 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1543 | } |
| 1544 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1545 | static int tgafb_register(struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1546 | { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1547 | static const struct fb_videomode modedb_tc = { |
| 1548 | /* 1280x1024 @ 72 Hz, 76.8 kHz hsync */ |
| 1549 | "1280x1024@72", 0, 1280, 1024, 7645, 224, 28, 33, 3, 160, 3, |
| 1550 | FB_SYNC_ON_GREEN, FB_VMODE_NONINTERLACED |
| 1551 | }; |
| 1552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | static unsigned int const fb_offset_presets[4] = { |
| 1554 | TGA_8PLANE_FB_OFFSET, |
| 1555 | TGA_24PLANE_FB_OFFSET, |
| 1556 | 0xffffffff, |
| 1557 | TGA_24PLUSZ_FB_OFFSET |
| 1558 | }; |
| 1559 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1560 | const struct fb_videomode *modedb_tga = NULL; |
| 1561 | resource_size_t bar0_start = 0, bar0_len = 0; |
| 1562 | const char *mode_option_tga = NULL; |
| 1563 | int tga_bus_pci = TGA_BUS_PCI(dev); |
| 1564 | int tga_bus_tc = TGA_BUS_TC(dev); |
| 1565 | unsigned int modedbsize_tga = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | void __iomem *mem_base; |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1567 | struct fb_info *info; |
| 1568 | struct tga_par *par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | u8 tga_type; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1570 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | |
| 1572 | /* Enable device in PCI config. */ |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1573 | if (tga_bus_pci && pci_enable_device(to_pci_dev(dev))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | printk(KERN_ERR "tgafb: Cannot enable PCI device\n"); |
| 1575 | return -ENODEV; |
| 1576 | } |
| 1577 | |
| 1578 | /* Allocate the fb and par structures. */ |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1579 | info = framebuffer_alloc(sizeof(struct tga_par), dev); |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1580 | if (!info) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1581 | printk(KERN_ERR "tgafb: Cannot allocate memory\n"); |
| 1582 | return -ENOMEM; |
| 1583 | } |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1584 | |
| 1585 | par = info->par; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1586 | dev_set_drvdata(dev, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1587 | |
| 1588 | /* Request the mem regions. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | ret = -ENODEV; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1590 | if (tga_bus_pci) { |
| 1591 | bar0_start = pci_resource_start(to_pci_dev(dev), 0); |
| 1592 | bar0_len = pci_resource_len(to_pci_dev(dev), 0); |
| 1593 | } |
| 1594 | if (tga_bus_tc) { |
| 1595 | bar0_start = to_tc_dev(dev)->resource.start; |
| 1596 | bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1; |
| 1597 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | if (!request_mem_region (bar0_start, bar0_len, "tgafb")) { |
| 1599 | printk(KERN_ERR "tgafb: cannot reserve FB region\n"); |
| 1600 | goto err0; |
| 1601 | } |
| 1602 | |
| 1603 | /* Map the framebuffer. */ |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1604 | mem_base = ioremap_nocache(bar0_start, bar0_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | if (!mem_base) { |
| 1606 | printk(KERN_ERR "tgafb: Cannot map MMIO\n"); |
| 1607 | goto err1; |
| 1608 | } |
| 1609 | |
| 1610 | /* Grab info about the card. */ |
| 1611 | tga_type = (readl(mem_base) >> 12) & 0x0f; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1612 | par->dev = dev; |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1613 | par->tga_mem_base = mem_base; |
| 1614 | par->tga_fb_base = mem_base + fb_offset_presets[tga_type]; |
| 1615 | par->tga_regs_base = mem_base + TGA_REGS_OFFSET; |
| 1616 | par->tga_type = tga_type; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1617 | if (tga_bus_pci) |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 1618 | par->tga_chip_rev = (to_pci_dev(dev))->revision; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1619 | if (tga_bus_tc) |
| 1620 | par->tga_chip_rev = TGA_READ_REG(par, TGA_START_REG) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | |
| 1622 | /* Setup framebuffer. */ |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1623 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | |
| 1624 | FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT; |
| 1625 | info->fbops = &tgafb_ops; |
| 1626 | info->screen_base = par->tga_fb_base; |
Antonino A. Daplas | eb3daa8 | 2007-07-17 04:05:41 -0700 | [diff] [blame] | 1627 | info->pseudo_palette = par->palette; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | |
| 1629 | /* This should give a reasonable default video mode. */ |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1630 | if (tga_bus_pci) { |
| 1631 | mode_option_tga = mode_option_pci; |
| 1632 | } |
| 1633 | if (tga_bus_tc) { |
| 1634 | mode_option_tga = mode_option_tc; |
| 1635 | modedb_tga = &modedb_tc; |
| 1636 | modedbsize_tga = 1; |
| 1637 | } |
| 1638 | ret = fb_find_mode(&info->var, info, |
| 1639 | mode_option ? mode_option : mode_option_tga, |
| 1640 | modedb_tga, modedbsize_tga, NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | tga_type == TGA_TYPE_8PLANE ? 8 : 32); |
| 1642 | if (ret == 0 || ret == 4) { |
| 1643 | printk(KERN_ERR "tgafb: Could not find valid video mode\n"); |
| 1644 | ret = -EINVAL; |
| 1645 | goto err1; |
| 1646 | } |
| 1647 | |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1648 | if (fb_alloc_cmap(&info->cmap, 256, 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | printk(KERN_ERR "tgafb: Could not allocate color map\n"); |
| 1650 | ret = -ENOMEM; |
| 1651 | goto err1; |
| 1652 | } |
| 1653 | |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1654 | tgafb_set_par(info); |
| 1655 | tgafb_init_fix(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1657 | if (register_framebuffer(info) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1658 | printk(KERN_ERR "tgafb: Could not register framebuffer\n"); |
| 1659 | ret = -EINVAL; |
Andres Salomon | 327fc87 | 2009-03-31 15:25:28 -0700 | [diff] [blame] | 1660 | goto err2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | } |
| 1662 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1663 | if (tga_bus_pci) { |
| 1664 | pr_info("tgafb: DC21030 [TGA] detected, rev=0x%02x\n", |
| 1665 | par->tga_chip_rev); |
| 1666 | pr_info("tgafb: at PCI bus %d, device %d, function %d\n", |
| 1667 | to_pci_dev(dev)->bus->number, |
| 1668 | PCI_SLOT(to_pci_dev(dev)->devfn), |
| 1669 | PCI_FUNC(to_pci_dev(dev)->devfn)); |
| 1670 | } |
| 1671 | if (tga_bus_tc) |
| 1672 | pr_info("tgafb: SFB+ detected, rev=0x%02x\n", |
| 1673 | par->tga_chip_rev); |
| 1674 | pr_info("fb%d: %s frame buffer device at 0x%lx\n", |
| 1675 | info->node, info->fix.id, (long)bar0_start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | |
| 1677 | return 0; |
| 1678 | |
Andres Salomon | 327fc87 | 2009-03-31 15:25:28 -0700 | [diff] [blame] | 1679 | err2: |
| 1680 | fb_dealloc_cmap(&info->cmap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | err1: |
Amol Lad | e4bf051 | 2006-12-08 02:40:04 -0800 | [diff] [blame] | 1682 | if (mem_base) |
| 1683 | iounmap(mem_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | release_mem_region(bar0_start, bar0_len); |
| 1685 | err0: |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1686 | framebuffer_release(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | return ret; |
| 1688 | } |
| 1689 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1690 | static void tgafb_unregister(struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1692 | resource_size_t bar0_start = 0, bar0_len = 0; |
| 1693 | int tga_bus_pci = TGA_BUS_PCI(dev); |
| 1694 | int tga_bus_tc = TGA_BUS_TC(dev); |
| 1695 | struct fb_info *info = NULL; |
| 1696 | struct tga_par *par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1698 | info = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | if (!info) |
| 1700 | return; |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1701 | |
| 1702 | par = info->par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | unregister_framebuffer(info); |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1704 | fb_dealloc_cmap(&info->cmap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | iounmap(par->tga_mem_base); |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1706 | if (tga_bus_pci) { |
| 1707 | bar0_start = pci_resource_start(to_pci_dev(dev), 0); |
| 1708 | bar0_len = pci_resource_len(to_pci_dev(dev), 0); |
| 1709 | } |
| 1710 | if (tga_bus_tc) { |
| 1711 | bar0_start = to_tc_dev(dev)->resource.start; |
| 1712 | bar0_len = to_tc_dev(dev)->resource.end - bar0_start + 1; |
| 1713 | } |
| 1714 | release_mem_region(bar0_start, bar0_len); |
Maciej W. Rozycki | ee9a25e | 2007-02-12 00:54:52 -0800 | [diff] [blame] | 1715 | framebuffer_release(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1716 | } |
| 1717 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1718 | static void tgafb_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1719 | { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1720 | tc_unregister_driver(&tgafb_tc_driver); |
| 1721 | pci_unregister_driver(&tgafb_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1722 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1723 | |
| 1724 | #ifndef MODULE |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1725 | static int tgafb_setup(char *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | { |
| 1727 | char *this_opt; |
| 1728 | |
| 1729 | if (arg && *arg) { |
| 1730 | while ((this_opt = strsep(&arg, ","))) { |
| 1731 | if (!*this_opt) |
| 1732 | continue; |
| 1733 | if (!strncmp(this_opt, "mode:", 5)) |
| 1734 | mode_option = this_opt+5; |
| 1735 | else |
| 1736 | printk(KERN_ERR |
| 1737 | "tgafb: unknown parameter %s\n", |
| 1738 | this_opt); |
| 1739 | } |
| 1740 | } |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | #endif /* !MODULE */ |
| 1745 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame^] | 1746 | static int tgafb_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | { |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1748 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | #ifndef MODULE |
| 1750 | char *option = NULL; |
| 1751 | |
| 1752 | if (fb_get_options("tgafb", &option)) |
| 1753 | return -ENODEV; |
| 1754 | tgafb_setup(option); |
| 1755 | #endif |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1756 | status = pci_register_driver(&tgafb_pci_driver); |
| 1757 | if (!status) |
| 1758 | status = tc_register_driver(&tgafb_tc_driver); |
| 1759 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | } |
| 1761 | |
| 1762 | /* |
| 1763 | * Modularisation |
| 1764 | */ |
| 1765 | |
| 1766 | module_init(tgafb_init); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | module_exit(tgafb_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | |
Maciej W. Rozycki | 86c6f7d | 2007-05-08 00:37:48 -0700 | [diff] [blame] | 1769 | MODULE_DESCRIPTION("Framebuffer driver for TGA/SFB+ chipset"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | MODULE_LICENSE("GPL"); |