Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/hitfb.c -- Hitachi LCD frame buffer device |
| 3 | * |
| 4 | * (C) 1999 Mihai Spatar |
| 5 | * (C) 2000 YAEGASHI Takeshi |
| 6 | * (C) 2003, 2004 Paul Mundt |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 7 | * (C) 2003, 2004, 2006 Andriy Skulysh |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * This file is subject to the terms and conditions of the GNU General Public |
| 10 | * License. See the file COPYING in the main directory of this archive for |
| 11 | * more details. |
| 12 | */ |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/module.h> |
| 15 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/errno.h> |
| 17 | #include <linux/string.h> |
| 18 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/delay.h> |
| 20 | #include <linux/init.h> |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 21 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/fb.h> |
| 23 | |
| 24 | #include <asm/machvec.h> |
| 25 | #include <asm/uaccess.h> |
| 26 | #include <asm/pgtable.h> |
| 27 | #include <asm/io.h> |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 28 | #include <asm/hd64461.h> |
Paul Mundt | 193f3c2 | 2008-07-30 02:16:12 +0900 | [diff] [blame] | 29 | #include <cpu/dac.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
| 31 | #define WIDTH 640 |
| 32 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 33 | static struct fb_var_screeninfo hitfb_var = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | .activate = FB_ACTIVATE_NOW, |
| 35 | .height = -1, |
| 36 | .width = -1, |
| 37 | .vmode = FB_VMODE_NONINTERLACED, |
| 38 | }; |
| 39 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 40 | static struct fb_fix_screeninfo hitfb_fix = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | .id = "Hitachi HD64461", |
| 42 | .type = FB_TYPE_PACKED_PIXELS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | .accel = FB_ACCEL_NONE, |
| 44 | }; |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | static inline void hitfb_accel_wait(void) |
| 47 | { |
| 48 | while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ; |
| 49 | } |
| 50 | |
| 51 | static inline void hitfb_accel_start(int truecolor) |
| 52 | { |
| 53 | if (truecolor) { |
| 54 | fb_writew(6, HD64461_GRCFGR); |
| 55 | } else { |
| 56 | fb_writew(7, HD64461_GRCFGR); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | static inline void hitfb_accel_set_dest(int truecolor, u16 dx, u16 dy, |
| 61 | u16 width, u16 height) |
| 62 | { |
| 63 | u32 saddr = WIDTH * dy + dx; |
| 64 | if (truecolor) |
| 65 | saddr <<= 1; |
| 66 | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 67 | fb_writew(width-1, HD64461_BBTDWR); |
| 68 | fb_writew(height-1, HD64461_BBTDHR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | fb_writew(saddr & 0xffff, HD64461_BBTDSARL); |
| 71 | fb_writew(saddr >> 16, HD64461_BBTDSARH); |
| 72 | |
| 73 | } |
| 74 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | static inline void hitfb_accel_bitblt(int truecolor, u16 sx, u16 sy, u16 dx, |
| 76 | u16 dy, u16 width, u16 height, u16 rop, |
| 77 | u32 mask_addr) |
| 78 | { |
| 79 | u32 saddr, daddr; |
| 80 | u32 maddr = 0; |
| 81 | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 82 | height--; |
| 83 | width--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | fb_writew(rop, HD64461_BBTROPR); |
| 85 | if ((sy < dy) || ((sy == dy) && (sx <= dx))) { |
| 86 | saddr = WIDTH * (sy + height) + sx + width; |
| 87 | daddr = WIDTH * (dy + height) + dx + width; |
| 88 | if (mask_addr) { |
| 89 | if (truecolor) |
| 90 | maddr = ((width >> 3) + 1) * (height + 1) - 1; |
| 91 | else |
| 92 | maddr = |
| 93 | (((width >> 4) + 1) * (height + 1) - 1) * 2; |
| 94 | |
| 95 | fb_writew((1 << 5) | 1, HD64461_BBTMDR); |
| 96 | } else |
| 97 | fb_writew(1, HD64461_BBTMDR); |
| 98 | } else { |
| 99 | saddr = WIDTH * sy + sx; |
| 100 | daddr = WIDTH * dy + dx; |
| 101 | if (mask_addr) { |
| 102 | fb_writew((1 << 5), HD64461_BBTMDR); |
| 103 | } else { |
| 104 | fb_writew(0, HD64461_BBTMDR); |
| 105 | } |
| 106 | } |
| 107 | if (truecolor) { |
| 108 | saddr <<= 1; |
| 109 | daddr <<= 1; |
| 110 | } |
| 111 | fb_writew(width, HD64461_BBTDWR); |
| 112 | fb_writew(height, HD64461_BBTDHR); |
| 113 | fb_writew(saddr & 0xffff, HD64461_BBTSSARL); |
| 114 | fb_writew(saddr >> 16, HD64461_BBTSSARH); |
| 115 | fb_writew(daddr & 0xffff, HD64461_BBTDSARL); |
| 116 | fb_writew(daddr >> 16, HD64461_BBTDSARH); |
| 117 | if (mask_addr) { |
| 118 | maddr += mask_addr; |
| 119 | fb_writew(maddr & 0xffff, HD64461_BBTMARL); |
| 120 | fb_writew(maddr >> 16, HD64461_BBTMARH); |
| 121 | } |
| 122 | hitfb_accel_start(truecolor); |
| 123 | } |
| 124 | |
| 125 | static void hitfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) |
| 126 | { |
| 127 | if (rect->rop != ROP_COPY) |
| 128 | cfb_fillrect(p, rect); |
| 129 | else { |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 130 | hitfb_accel_wait(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | fb_writew(0x00f0, HD64461_BBTROPR); |
| 132 | fb_writew(16, HD64461_BBTMDR); |
| 133 | |
| 134 | if (p->var.bits_per_pixel == 16) { |
| 135 | fb_writew(((u32 *) (p->pseudo_palette))[rect->color], |
| 136 | HD64461_GRSCR); |
| 137 | hitfb_accel_set_dest(1, rect->dx, rect->dy, rect->width, |
| 138 | rect->height); |
| 139 | hitfb_accel_start(1); |
| 140 | } else { |
| 141 | fb_writew(rect->color, HD64461_GRSCR); |
| 142 | hitfb_accel_set_dest(0, rect->dx, rect->dy, rect->width, |
| 143 | rect->height); |
| 144 | hitfb_accel_start(0); |
| 145 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | } |
| 147 | } |
| 148 | |
| 149 | static void hitfb_copyarea(struct fb_info *p, const struct fb_copyarea *area) |
| 150 | { |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 151 | hitfb_accel_wait(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | hitfb_accel_bitblt(p->var.bits_per_pixel == 16, area->sx, area->sy, |
| 153 | area->dx, area->dy, area->width, area->height, |
| 154 | 0x00cc, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | static int hitfb_pan_display(struct fb_var_screeninfo *var, |
| 158 | struct fb_info *info) |
| 159 | { |
| 160 | int xoffset = var->xoffset; |
| 161 | int yoffset = var->yoffset; |
| 162 | |
| 163 | if (xoffset != 0) |
| 164 | return -EINVAL; |
| 165 | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 166 | fb_writew((yoffset*info->fix.line_length)>>10, HD64461_LCDCBAR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | int hitfb_blank(int blank_mode, struct fb_info *info) |
| 172 | { |
| 173 | unsigned short v; |
| 174 | |
| 175 | if (blank_mode) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | v = fb_readw(HD64461_LDR1); |
| 177 | v &= ~HD64461_LDR1_DON; |
| 178 | fb_writew(v, HD64461_LDR1); |
| 179 | |
| 180 | v = fb_readw(HD64461_LCDCCR); |
| 181 | v |= HD64461_LCDCCR_MOFF; |
| 182 | fb_writew(v, HD64461_LCDCCR); |
| 183 | |
| 184 | v = fb_readw(HD64461_STBCR); |
| 185 | v |= HD64461_STBCR_SLCDST; |
| 186 | fb_writew(v, HD64461_STBCR); |
| 187 | } else { |
| 188 | v = fb_readw(HD64461_STBCR); |
| 189 | v &= ~HD64461_STBCR_SLCDST; |
| 190 | fb_writew(v, HD64461_STBCR); |
Andriy Skulysh | 4bcac20 | 2006-09-27 13:07:38 +0900 | [diff] [blame] | 191 | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 192 | v = fb_readw(HD64461_LCDCCR); |
| 193 | v &= ~(HD64461_LCDCCR_MOFF | HD64461_LCDCCR_STREQ); |
| 194 | fb_writew(v, HD64461_LCDCCR); |
| 195 | |
| 196 | do { |
| 197 | v = fb_readw(HD64461_LCDCCR); |
| 198 | } while(v&HD64461_LCDCCR_STBACK); |
| 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | v = fb_readw(HD64461_LDR1); |
| 201 | v |= HD64461_LDR1_DON; |
| 202 | fb_writew(v, HD64461_LDR1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | } |
| 204 | return 0; |
| 205 | } |
| 206 | |
| 207 | static int hitfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 208 | unsigned blue, unsigned transp, struct fb_info *info) |
| 209 | { |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 210 | if (regno >= 256) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | return 1; |
| 212 | |
| 213 | switch (info->var.bits_per_pixel) { |
| 214 | case 8: |
| 215 | fb_writew(regno << 8, HD64461_CPTWAR); |
| 216 | fb_writew(red >> 10, HD64461_CPTWDR); |
| 217 | fb_writew(green >> 10, HD64461_CPTWDR); |
| 218 | fb_writew(blue >> 10, HD64461_CPTWDR); |
| 219 | break; |
| 220 | case 16: |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 221 | if (regno >= 16) |
| 222 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | ((u32 *) (info->pseudo_palette))[regno] = |
| 224 | ((red & 0xf800)) | |
| 225 | ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11); |
| 226 | break; |
| 227 | } |
| 228 | return 0; |
| 229 | } |
| 230 | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 231 | static int hitfb_sync(struct fb_info *info) |
| 232 | { |
| 233 | hitfb_accel_wait(); |
| 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static int hitfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 239 | { |
| 240 | int maxy; |
| 241 | |
| 242 | var->xres = info->var.xres; |
| 243 | var->xres_virtual = info->var.xres; |
| 244 | var->yres = info->var.yres; |
| 245 | |
| 246 | if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16)) |
| 247 | var->bits_per_pixel = info->var.bits_per_pixel; |
| 248 | |
| 249 | if (var->yres_virtual < var->yres) |
| 250 | var->yres_virtual = var->yres; |
| 251 | |
| 252 | maxy = info->fix.smem_len / var->xres; |
| 253 | |
| 254 | if (var->bits_per_pixel == 16) |
| 255 | maxy /= 2; |
| 256 | |
| 257 | if (var->yres_virtual > maxy) |
| 258 | var->yres_virtual = maxy; |
| 259 | |
| 260 | var->xoffset = 0; |
| 261 | var->yoffset = 0; |
| 262 | |
| 263 | switch (var->bits_per_pixel) { |
| 264 | case 8: |
| 265 | var->red.offset = 0; |
| 266 | var->red.length = 8; |
| 267 | var->green.offset = 0; |
| 268 | var->green.length = 8; |
| 269 | var->blue.offset = 0; |
| 270 | var->blue.length = 8; |
| 271 | var->transp.offset = 0; |
| 272 | var->transp.length = 0; |
| 273 | break; |
| 274 | case 16: /* RGB 565 */ |
| 275 | var->red.offset = 11; |
| 276 | var->red.length = 5; |
| 277 | var->green.offset = 5; |
| 278 | var->green.length = 6; |
| 279 | var->blue.offset = 0; |
| 280 | var->blue.length = 5; |
| 281 | var->transp.offset = 0; |
| 282 | var->transp.length = 0; |
| 283 | break; |
| 284 | } |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | static int hitfb_set_par(struct fb_info *info) |
| 290 | { |
| 291 | unsigned short ldr3; |
| 292 | |
| 293 | switch (info->var.bits_per_pixel) { |
| 294 | case 8: |
| 295 | info->fix.line_length = info->var.xres; |
| 296 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 297 | info->fix.ypanstep = 16; |
| 298 | break; |
| 299 | case 16: |
| 300 | info->fix.line_length = info->var.xres*2; |
| 301 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
| 302 | info->fix.ypanstep = 8; |
| 303 | break; |
| 304 | } |
| 305 | |
| 306 | fb_writew(info->fix.line_length, HD64461_LCDCLOR); |
| 307 | ldr3 = fb_readw(HD64461_LDR3); |
| 308 | ldr3 &= ~15; |
| 309 | ldr3 |= (info->var.bits_per_pixel == 8) ? 4 : 8; |
| 310 | fb_writew(ldr3, HD64461_LDR3); |
| 311 | return 0; |
| 312 | } |
| 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | static struct fb_ops hitfb_ops = { |
| 315 | .owner = THIS_MODULE, |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 316 | .fb_check_var = hitfb_check_var, |
| 317 | .fb_set_par = hitfb_set_par, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | .fb_setcolreg = hitfb_setcolreg, |
| 319 | .fb_blank = hitfb_blank, |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 320 | .fb_sync = hitfb_sync, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | .fb_pan_display = hitfb_pan_display, |
| 322 | .fb_fillrect = hitfb_fillrect, |
| 323 | .fb_copyarea = hitfb_copyarea, |
| 324 | .fb_imageblit = cfb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | }; |
| 326 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 327 | static int hitfb_probe(struct platform_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | { |
| 329 | unsigned short lcdclor, ldr3, ldvndr; |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 330 | struct fb_info *info; |
| 331 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
| 333 | if (fb_get_options("hitfb", NULL)) |
| 334 | return -ENODEV; |
| 335 | |
Paul Mundt | 62669e61 | 2009-05-20 11:27:13 +0900 | [diff] [blame] | 336 | hitfb_fix.mmio_start = HD64461_IO_OFFSET(0x1000); |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 337 | hitfb_fix.mmio_len = 0x1000; |
Paul Mundt | 62669e61 | 2009-05-20 11:27:13 +0900 | [diff] [blame] | 338 | hitfb_fix.smem_start = HD64461_IO_OFFSET(0x02000000); |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 339 | hitfb_fix.smem_len = 512 * 1024; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
| 341 | lcdclor = fb_readw(HD64461_LCDCLOR); |
| 342 | ldvndr = fb_readw(HD64461_LDVNDR); |
| 343 | ldr3 = fb_readw(HD64461_LDR3); |
| 344 | |
| 345 | switch (ldr3 & 15) { |
| 346 | default: |
| 347 | case 4: |
| 348 | hitfb_var.bits_per_pixel = 8; |
| 349 | hitfb_var.xres = lcdclor; |
| 350 | break; |
| 351 | case 8: |
| 352 | hitfb_var.bits_per_pixel = 16; |
| 353 | hitfb_var.xres = lcdclor / 2; |
| 354 | break; |
| 355 | } |
| 356 | hitfb_fix.line_length = lcdclor; |
| 357 | hitfb_fix.visual = (hitfb_var.bits_per_pixel == 8) ? |
| 358 | FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; |
| 359 | hitfb_var.yres = ldvndr + 1; |
| 360 | hitfb_var.xres_virtual = hitfb_var.xres; |
| 361 | hitfb_var.yres_virtual = hitfb_fix.smem_len / lcdclor; |
| 362 | switch (hitfb_var.bits_per_pixel) { |
| 363 | case 8: |
| 364 | hitfb_var.red.offset = 0; |
| 365 | hitfb_var.red.length = 8; |
| 366 | hitfb_var.green.offset = 0; |
| 367 | hitfb_var.green.length = 8; |
| 368 | hitfb_var.blue.offset = 0; |
| 369 | hitfb_var.blue.length = 8; |
| 370 | hitfb_var.transp.offset = 0; |
| 371 | hitfb_var.transp.length = 0; |
| 372 | break; |
| 373 | case 16: /* RGB 565 */ |
| 374 | hitfb_var.red.offset = 11; |
| 375 | hitfb_var.red.length = 5; |
| 376 | hitfb_var.green.offset = 5; |
| 377 | hitfb_var.green.length = 6; |
| 378 | hitfb_var.blue.offset = 0; |
| 379 | hitfb_var.blue.length = 5; |
| 380 | hitfb_var.transp.offset = 0; |
| 381 | hitfb_var.transp.length = 0; |
| 382 | break; |
| 383 | } |
| 384 | |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 385 | info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); |
| 386 | if (unlikely(!info)) |
| 387 | return -ENOMEM; |
| 388 | |
| 389 | info->fbops = &hitfb_ops; |
| 390 | info->var = hitfb_var; |
| 391 | info->fix = hitfb_fix; |
| 392 | info->pseudo_palette = info->par; |
| 393 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 394 | FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 396 | info->screen_base = (void *)hitfb_fix.smem_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 398 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
| 399 | if (unlikely(ret < 0)) |
| 400 | goto err_fb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 402 | ret = register_framebuffer(info); |
| 403 | if (unlikely(ret < 0)) |
| 404 | goto err; |
| 405 | |
| 406 | platform_set_drvdata(dev, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
Joe Perches | 31b6780 | 2013-09-19 18:35:55 -0700 | [diff] [blame] | 408 | fb_info(info, "%s frame buffer device\n", info->fix.id); |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 409 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | return 0; |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 411 | |
| 412 | err: |
| 413 | fb_dealloc_cmap(&info->cmap); |
| 414 | err_fb: |
| 415 | framebuffer_release(info); |
| 416 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | } |
| 418 | |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 419 | static int hitfb_remove(struct platform_device *dev) |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 420 | { |
Paul Mundt | 684dcd0 | 2009-07-07 11:44:56 +0900 | [diff] [blame] | 421 | struct fb_info *info = platform_get_drvdata(dev); |
| 422 | |
| 423 | unregister_framebuffer(info); |
| 424 | fb_dealloc_cmap(&info->cmap); |
| 425 | framebuffer_release(info); |
| 426 | |
| 427 | return 0; |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 428 | } |
| 429 | |
Paul Mundt | 2dbc8a2 | 2009-07-07 11:50:57 +0900 | [diff] [blame] | 430 | static int hitfb_suspend(struct device *dev) |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 431 | { |
| 432 | u16 v; |
| 433 | |
| 434 | hitfb_blank(1,0); |
| 435 | v = fb_readw(HD64461_STBCR); |
| 436 | v |= HD64461_STBCR_SLCKE_IST; |
| 437 | fb_writew(v, HD64461_STBCR); |
| 438 | |
| 439 | return 0; |
| 440 | } |
| 441 | |
Paul Mundt | 2dbc8a2 | 2009-07-07 11:50:57 +0900 | [diff] [blame] | 442 | static int hitfb_resume(struct device *dev) |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 443 | { |
| 444 | u16 v; |
| 445 | |
| 446 | v = fb_readw(HD64461_STBCR); |
| 447 | v &= ~HD64461_STBCR_SLCKE_OST; |
| 448 | msleep(100); |
| 449 | v = fb_readw(HD64461_STBCR); |
| 450 | v &= ~HD64461_STBCR_SLCKE_IST; |
| 451 | fb_writew(v, HD64461_STBCR); |
| 452 | hitfb_blank(0,0); |
| 453 | |
| 454 | return 0; |
| 455 | } |
Paul Mundt | 2dbc8a2 | 2009-07-07 11:50:57 +0900 | [diff] [blame] | 456 | |
Alexey Dobriyan | 4714521 | 2009-12-14 18:00:08 -0800 | [diff] [blame] | 457 | static const struct dev_pm_ops hitfb_dev_pm_ops = { |
Paul Mundt | 2dbc8a2 | 2009-07-07 11:50:57 +0900 | [diff] [blame] | 458 | .suspend = hitfb_suspend, |
| 459 | .resume = hitfb_resume, |
| 460 | }; |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 461 | |
| 462 | static struct platform_driver hitfb_driver = { |
| 463 | .probe = hitfb_probe, |
Greg Kroah-Hartman | 48c68c4 | 2012-12-21 13:07:39 -0800 | [diff] [blame] | 464 | .remove = hitfb_remove, |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 465 | .driver = { |
| 466 | .name = "hitfb", |
Paul Mundt | 2dbc8a2 | 2009-07-07 11:50:57 +0900 | [diff] [blame] | 467 | .owner = THIS_MODULE, |
| 468 | .pm = &hitfb_dev_pm_ops, |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 469 | }, |
| 470 | }; |
| 471 | |
| 472 | static struct platform_device hitfb_device = { |
| 473 | .name = "hitfb", |
| 474 | .id = -1, |
| 475 | }; |
| 476 | |
| 477 | static int __init hitfb_init(void) |
| 478 | { |
| 479 | int ret; |
| 480 | |
| 481 | ret = platform_driver_register(&hitfb_driver); |
| 482 | if (!ret) { |
| 483 | ret = platform_device_register(&hitfb_device); |
| 484 | if (ret) |
| 485 | platform_driver_unregister(&hitfb_driver); |
| 486 | } |
| 487 | return ret; |
| 488 | } |
| 489 | |
| 490 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | static void __exit hitfb_exit(void) |
| 492 | { |
Andriy Skulysh | 048839d | 2006-09-27 13:47:22 +0900 | [diff] [blame] | 493 | platform_device_unregister(&hitfb_device); |
| 494 | platform_driver_unregister(&hitfb_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | } |
| 496 | |
| 497 | module_init(hitfb_init); |
| 498 | module_exit(hitfb_exit); |
| 499 | |
| 500 | MODULE_LICENSE("GPL"); |