Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Silicon Motion SM7XX frame buffer device |
| 3 | * |
| 4 | * Copyright (C) 2006 Silicon Motion Technology Corp. |
| 5 | * Authors: Ge Wang, gewang@siliconmotion.com |
| 6 | * Boyod boyod.yang@siliconmotion.com.cn |
| 7 | * |
| 8 | * Copyright (C) 2009 Lemote, Inc. |
| 9 | * Author: Wu Zhangjin, wuzhangjin@gmail.com |
| 10 | * |
| 11 | * Copyright (C) 2011 Igalia, S.L. |
| 12 | * Author: Javier M. Mellid <jmunhoz@igalia.com> |
| 13 | * |
| 14 | * This file is subject to the terms and conditions of the GNU General Public |
| 15 | * License. See the file COPYING in the main directory of this archive for |
| 16 | * more details. |
| 17 | * |
| 18 | * Framebuffer driver for Silicon Motion SM710, SM712, SM721 and SM722 chips |
| 19 | */ |
| 20 | |
| 21 | #include <linux/io.h> |
| 22 | #include <linux/fb.h> |
| 23 | #include <linux/pci.h> |
| 24 | #include <linux/init.h> |
| 25 | #include <linux/slab.h> |
| 26 | #include <linux/uaccess.h> |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/console.h> |
| 29 | #include <linux/screen_info.h> |
| 30 | |
| 31 | #ifdef CONFIG_PM |
| 32 | #include <linux/pm.h> |
| 33 | #endif |
| 34 | |
| 35 | #include "sm7xx.h" |
| 36 | |
| 37 | /* |
| 38 | * Private structure |
| 39 | */ |
| 40 | struct smtcfb_info { |
| 41 | struct pci_dev *pdev; |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 42 | struct fb_info *fb; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 43 | u16 chip_id; |
| 44 | u8 chip_rev_id; |
| 45 | |
| 46 | void __iomem *lfb; /* linear frame buffer */ |
| 47 | void __iomem *dp_regs; /* drawing processor control regs */ |
| 48 | void __iomem *vp_regs; /* video processor control regs */ |
| 49 | void __iomem *cp_regs; /* capture processor control regs */ |
| 50 | void __iomem *mmio; /* memory map IO port */ |
| 51 | |
| 52 | u_int width; |
| 53 | u_int height; |
| 54 | u_int hz; |
| 55 | |
| 56 | u32 colreg[17]; |
| 57 | }; |
| 58 | |
Sudip Mukherjee | 7412189 | 2015-02-03 20:23:33 +0530 | [diff] [blame] | 59 | void __iomem *smtc_regbaseaddress; /* Memory Map IO starting address */ |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 60 | |
| 61 | static struct fb_var_screeninfo smtcfb_var = { |
| 62 | .xres = 1024, |
| 63 | .yres = 600, |
| 64 | .xres_virtual = 1024, |
| 65 | .yres_virtual = 600, |
| 66 | .bits_per_pixel = 16, |
| 67 | .red = {16, 8, 0}, |
| 68 | .green = {8, 8, 0}, |
| 69 | .blue = {0, 8, 0}, |
| 70 | .activate = FB_ACTIVATE_NOW, |
| 71 | .height = -1, |
| 72 | .width = -1, |
| 73 | .vmode = FB_VMODE_NONINTERLACED, |
| 74 | .nonstd = 0, |
| 75 | .accel_flags = FB_ACCELF_TEXT, |
| 76 | }; |
| 77 | |
| 78 | static struct fb_fix_screeninfo smtcfb_fix = { |
| 79 | .id = "smXXXfb", |
| 80 | .type = FB_TYPE_PACKED_PIXELS, |
| 81 | .visual = FB_VISUAL_TRUECOLOR, |
| 82 | .line_length = 800 * 3, |
| 83 | .accel = FB_ACCEL_SMI_LYNX, |
| 84 | .type_aux = 0, |
| 85 | .xpanstep = 0, |
| 86 | .ypanstep = 0, |
| 87 | .ywrapstep = 0, |
| 88 | }; |
| 89 | |
| 90 | struct vesa_mode { |
| 91 | char index[6]; |
| 92 | u16 lfb_width; |
| 93 | u16 lfb_height; |
| 94 | u16 lfb_depth; |
| 95 | }; |
| 96 | |
| 97 | static struct vesa_mode vesa_mode_table[] = { |
| 98 | {"0x301", 640, 480, 8}, |
| 99 | {"0x303", 800, 600, 8}, |
| 100 | {"0x305", 1024, 768, 8}, |
| 101 | {"0x307", 1280, 1024, 8}, |
| 102 | |
| 103 | {"0x311", 640, 480, 16}, |
| 104 | {"0x314", 800, 600, 16}, |
| 105 | {"0x317", 1024, 768, 16}, |
| 106 | {"0x31A", 1280, 1024, 16}, |
| 107 | |
| 108 | {"0x312", 640, 480, 24}, |
| 109 | {"0x315", 800, 600, 24}, |
| 110 | {"0x318", 1024, 768, 24}, |
| 111 | {"0x31B", 1280, 1024, 24}, |
| 112 | }; |
| 113 | |
Max Perepelitsyn | 11862b3 | 2015-02-03 14:44:28 +0600 | [diff] [blame] | 114 | static struct screen_info smtc_scr_info; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 115 | |
Sudip Mukherjee | c65434e | 2015-03-08 23:10:09 +0530 | [diff] [blame] | 116 | static char *mode_option; |
| 117 | |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 118 | /* process command line options, get vga parameter */ |
Sudip Mukherjee | 71ce762 | 2015-03-08 23:10:11 +0530 | [diff] [blame] | 119 | static void __init sm7xx_vga_setup(char *options) |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 120 | { |
| 121 | int i; |
| 122 | |
| 123 | if (!options || !*options) |
Sudip Mukherjee | 71ce762 | 2015-03-08 23:10:11 +0530 | [diff] [blame] | 124 | return; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 125 | |
| 126 | smtc_scr_info.lfb_width = 0; |
| 127 | smtc_scr_info.lfb_height = 0; |
| 128 | smtc_scr_info.lfb_depth = 0; |
| 129 | |
| 130 | pr_debug("sm7xx_vga_setup = %s\n", options); |
| 131 | |
| 132 | for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) { |
| 133 | if (strstr(options, vesa_mode_table[i].index)) { |
| 134 | smtc_scr_info.lfb_width = vesa_mode_table[i].lfb_width; |
| 135 | smtc_scr_info.lfb_height = |
| 136 | vesa_mode_table[i].lfb_height; |
| 137 | smtc_scr_info.lfb_depth = vesa_mode_table[i].lfb_depth; |
Sudip Mukherjee | 71ce762 | 2015-03-08 23:10:11 +0530 | [diff] [blame] | 138 | return; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 139 | } |
| 140 | } |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 141 | } |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 142 | |
| 143 | static void sm712_setpalette(int regno, unsigned red, unsigned green, |
| 144 | unsigned blue, struct fb_info *info) |
| 145 | { |
| 146 | /* set bit 5:4 = 01 (write LCD RAM only) */ |
| 147 | smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10); |
| 148 | |
| 149 | smtc_mmiowb(regno, dac_reg); |
| 150 | smtc_mmiowb(red >> 10, dac_val); |
| 151 | smtc_mmiowb(green >> 10, dac_val); |
| 152 | smtc_mmiowb(blue >> 10, dac_val); |
| 153 | } |
| 154 | |
| 155 | /* chan_to_field |
| 156 | * |
| 157 | * convert a colour value into a field position |
| 158 | * |
| 159 | * from pxafb.c |
| 160 | */ |
| 161 | |
| 162 | static inline unsigned int chan_to_field(unsigned int chan, |
| 163 | struct fb_bitfield *bf) |
| 164 | { |
| 165 | chan &= 0xffff; |
| 166 | chan >>= 16 - bf->length; |
| 167 | return chan << bf->offset; |
| 168 | } |
| 169 | |
| 170 | static int smtc_blank(int blank_mode, struct fb_info *info) |
| 171 | { |
| 172 | /* clear DPMS setting */ |
| 173 | switch (blank_mode) { |
| 174 | case FB_BLANK_UNBLANK: |
| 175 | /* Screen On: HSync: On, VSync : On */ |
| 176 | smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); |
| 177 | smtc_seqw(0x6a, 0x16); |
| 178 | smtc_seqw(0x6b, 0x02); |
| 179 | smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77)); |
| 180 | smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); |
| 181 | smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); |
| 182 | smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); |
| 183 | smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03)); |
| 184 | break; |
| 185 | case FB_BLANK_NORMAL: |
| 186 | /* Screen Off: HSync: On, VSync : On Soft blank */ |
| 187 | smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); |
| 188 | smtc_seqw(0x6a, 0x16); |
| 189 | smtc_seqw(0x6b, 0x02); |
| 190 | smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); |
| 191 | smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); |
| 192 | smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); |
| 193 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); |
| 194 | break; |
| 195 | case FB_BLANK_VSYNC_SUSPEND: |
| 196 | /* Screen On: HSync: On, VSync : Off */ |
| 197 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); |
| 198 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); |
| 199 | smtc_seqw(0x6a, 0x0c); |
| 200 | smtc_seqw(0x6b, 0x02); |
| 201 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); |
| 202 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20)); |
| 203 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20)); |
| 204 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); |
| 205 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); |
| 206 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); |
| 207 | break; |
| 208 | case FB_BLANK_HSYNC_SUSPEND: |
| 209 | /* Screen On: HSync: Off, VSync : On */ |
| 210 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); |
| 211 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); |
| 212 | smtc_seqw(0x6a, 0x0c); |
| 213 | smtc_seqw(0x6b, 0x02); |
| 214 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); |
| 215 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10)); |
| 216 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); |
| 217 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); |
| 218 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); |
| 219 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); |
| 220 | break; |
| 221 | case FB_BLANK_POWERDOWN: |
| 222 | /* Screen On: HSync: Off, VSync : Off */ |
| 223 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); |
| 224 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); |
| 225 | smtc_seqw(0x6a, 0x0c); |
| 226 | smtc_seqw(0x6b, 0x02); |
| 227 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); |
| 228 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30)); |
| 229 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); |
| 230 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); |
| 231 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); |
| 232 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); |
| 233 | break; |
| 234 | default: |
| 235 | return -EINVAL; |
| 236 | } |
| 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | |
| 241 | static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green, |
| 242 | unsigned blue, unsigned trans, struct fb_info *info) |
| 243 | { |
| 244 | struct smtcfb_info *sfb; |
| 245 | u32 val; |
| 246 | |
| 247 | sfb = info->par; |
| 248 | |
| 249 | if (regno > 255) |
| 250 | return 1; |
| 251 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 252 | switch (sfb->fb->fix.visual) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 253 | case FB_VISUAL_DIRECTCOLOR: |
| 254 | case FB_VISUAL_TRUECOLOR: |
| 255 | /* |
| 256 | * 16/32 bit true-colour, use pseudo-palette for 16 base color |
| 257 | */ |
| 258 | if (regno < 16) { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 259 | if (sfb->fb->var.bits_per_pixel == 16) { |
| 260 | u32 *pal = sfb->fb->pseudo_palette; |
Sudip Mukherjee | a1f6da6 | 2015-01-19 13:41:03 +0530 | [diff] [blame] | 261 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 262 | val = chan_to_field(red, &sfb->fb->var.red); |
| 263 | val |= chan_to_field(green, |
| 264 | &sfb->fb->var.green); |
| 265 | val |= chan_to_field(blue, &sfb->fb->var.blue); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 266 | #ifdef __BIG_ENDIAN |
| 267 | pal[regno] = |
| 268 | ((red & 0xf800) >> 8) | |
| 269 | ((green & 0xe000) >> 13) | |
| 270 | ((green & 0x1c00) << 3) | |
| 271 | ((blue & 0xf800) >> 3); |
| 272 | #else |
| 273 | pal[regno] = val; |
| 274 | #endif |
| 275 | } else { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 276 | u32 *pal = sfb->fb->pseudo_palette; |
Sudip Mukherjee | a1f6da6 | 2015-01-19 13:41:03 +0530 | [diff] [blame] | 277 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 278 | val = chan_to_field(red, &sfb->fb->var.red); |
| 279 | val |= chan_to_field(green, |
| 280 | &sfb->fb->var.green); |
| 281 | val |= chan_to_field(blue, &sfb->fb->var.blue); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 282 | #ifdef __BIG_ENDIAN |
| 283 | val = |
| 284 | (val & 0xff00ff00 >> 8) | |
| 285 | (val & 0x00ff00ff << 8); |
| 286 | #endif |
| 287 | pal[regno] = val; |
| 288 | } |
| 289 | } |
| 290 | break; |
| 291 | |
| 292 | case FB_VISUAL_PSEUDOCOLOR: |
| 293 | /* color depth 8 bit */ |
| 294 | sm712_setpalette(regno, red, green, blue, info); |
| 295 | break; |
| 296 | |
| 297 | default: |
| 298 | return 1; /* unknown type */ |
| 299 | } |
| 300 | |
| 301 | return 0; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | #ifdef __BIG_ENDIAN |
| 305 | static ssize_t smtcfb_read(struct fb_info *info, char __user *buf, size_t |
| 306 | count, loff_t *ppos) |
| 307 | { |
| 308 | unsigned long p = *ppos; |
| 309 | |
| 310 | u32 *buffer, *dst; |
| 311 | u32 __iomem *src; |
| 312 | int c, i, cnt = 0, err = 0; |
| 313 | unsigned long total_size; |
| 314 | |
| 315 | if (!info || !info->screen_base) |
| 316 | return -ENODEV; |
| 317 | |
| 318 | if (info->state != FBINFO_STATE_RUNNING) |
| 319 | return -EPERM; |
| 320 | |
| 321 | total_size = info->screen_size; |
| 322 | |
| 323 | if (total_size == 0) |
| 324 | total_size = info->fix.smem_len; |
| 325 | |
| 326 | if (p >= total_size) |
| 327 | return 0; |
| 328 | |
| 329 | if (count >= total_size) |
| 330 | count = total_size; |
| 331 | |
| 332 | if (count + p > total_size) |
| 333 | count = total_size - p; |
| 334 | |
| 335 | buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL); |
| 336 | if (!buffer) |
| 337 | return -ENOMEM; |
| 338 | |
| 339 | src = (u32 __iomem *) (info->screen_base + p); |
| 340 | |
| 341 | if (info->fbops->fb_sync) |
| 342 | info->fbops->fb_sync(info); |
| 343 | |
| 344 | while (count) { |
| 345 | c = (count > PAGE_SIZE) ? PAGE_SIZE : count; |
| 346 | dst = buffer; |
| 347 | for (i = c >> 2; i--;) { |
| 348 | *dst = fb_readl(src++); |
| 349 | *dst = |
| 350 | (*dst & 0xff00ff00 >> 8) | |
| 351 | (*dst & 0x00ff00ff << 8); |
| 352 | dst++; |
| 353 | } |
| 354 | if (c & 3) { |
Sudip Mukherjee | 53f54a4 | 2015-01-19 13:41:04 +0530 | [diff] [blame] | 355 | u8 *dst8 = (u8 *)dst; |
| 356 | u8 __iomem *src8 = (u8 __iomem *)src; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 357 | |
| 358 | for (i = c & 3; i--;) { |
| 359 | if (i & 1) { |
| 360 | *dst8++ = fb_readb(++src8); |
| 361 | } else { |
| 362 | *dst8++ = fb_readb(--src8); |
| 363 | src8 += 2; |
| 364 | } |
| 365 | } |
Sudip Mukherjee | 53f54a4 | 2015-01-19 13:41:04 +0530 | [diff] [blame] | 366 | src = (u32 __iomem *)src8; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | if (copy_to_user(buf, buffer, c)) { |
| 370 | err = -EFAULT; |
| 371 | break; |
| 372 | } |
| 373 | *ppos += c; |
| 374 | buf += c; |
| 375 | cnt += c; |
| 376 | count -= c; |
| 377 | } |
| 378 | |
| 379 | kfree(buffer); |
| 380 | |
| 381 | return (err) ? err : cnt; |
| 382 | } |
| 383 | |
| 384 | static ssize_t |
| 385 | smtcfb_write(struct fb_info *info, const char __user *buf, size_t count, |
| 386 | loff_t *ppos) |
| 387 | { |
| 388 | unsigned long p = *ppos; |
| 389 | |
| 390 | u32 *buffer, *src; |
| 391 | u32 __iomem *dst; |
| 392 | int c, i, cnt = 0, err = 0; |
| 393 | unsigned long total_size; |
| 394 | |
| 395 | if (!info || !info->screen_base) |
| 396 | return -ENODEV; |
| 397 | |
| 398 | if (info->state != FBINFO_STATE_RUNNING) |
| 399 | return -EPERM; |
| 400 | |
| 401 | total_size = info->screen_size; |
| 402 | |
| 403 | if (total_size == 0) |
| 404 | total_size = info->fix.smem_len; |
| 405 | |
| 406 | if (p > total_size) |
| 407 | return -EFBIG; |
| 408 | |
| 409 | if (count > total_size) { |
| 410 | err = -EFBIG; |
| 411 | count = total_size; |
| 412 | } |
| 413 | |
| 414 | if (count + p > total_size) { |
| 415 | if (!err) |
| 416 | err = -ENOSPC; |
| 417 | |
| 418 | count = total_size - p; |
| 419 | } |
| 420 | |
| 421 | buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL); |
| 422 | if (!buffer) |
| 423 | return -ENOMEM; |
| 424 | |
| 425 | dst = (u32 __iomem *) (info->screen_base + p); |
| 426 | |
| 427 | if (info->fbops->fb_sync) |
| 428 | info->fbops->fb_sync(info); |
| 429 | |
| 430 | while (count) { |
| 431 | c = (count > PAGE_SIZE) ? PAGE_SIZE : count; |
| 432 | src = buffer; |
| 433 | |
| 434 | if (copy_from_user(src, buf, c)) { |
| 435 | err = -EFAULT; |
| 436 | break; |
| 437 | } |
| 438 | |
| 439 | for (i = c >> 2; i--;) { |
| 440 | fb_writel((*src & 0xff00ff00 >> 8) | |
| 441 | (*src & 0x00ff00ff << 8), dst++); |
| 442 | src++; |
| 443 | } |
| 444 | if (c & 3) { |
Sudip Mukherjee | 53f54a4 | 2015-01-19 13:41:04 +0530 | [diff] [blame] | 445 | u8 *src8 = (u8 *)src; |
| 446 | u8 __iomem *dst8 = (u8 __iomem *)dst; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 447 | |
| 448 | for (i = c & 3; i--;) { |
| 449 | if (i & 1) { |
| 450 | fb_writeb(*src8++, ++dst8); |
| 451 | } else { |
| 452 | fb_writeb(*src8++, --dst8); |
| 453 | dst8 += 2; |
| 454 | } |
| 455 | } |
Sudip Mukherjee | 53f54a4 | 2015-01-19 13:41:04 +0530 | [diff] [blame] | 456 | dst = (u32 __iomem *)dst8; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | *ppos += c; |
| 460 | buf += c; |
| 461 | cnt += c; |
| 462 | count -= c; |
| 463 | } |
| 464 | |
| 465 | kfree(buffer); |
| 466 | |
| 467 | return (cnt) ? cnt : err; |
| 468 | } |
| 469 | #endif /* ! __BIG_ENDIAN */ |
| 470 | |
| 471 | static void sm7xx_set_timing(struct smtcfb_info *sfb) |
| 472 | { |
| 473 | int i = 0, j = 0; |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 474 | u32 m_nscreenstride; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 475 | |
| 476 | dev_dbg(&sfb->pdev->dev, |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 477 | "sfb->width=%d sfb->height=%d sfb->fb->var.bits_per_pixel=%d sfb->hz=%d\n", |
| 478 | sfb->width, sfb->height, sfb->fb->var.bits_per_pixel, sfb->hz); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 479 | |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 480 | for (j = 0; j < numvgamodes; j++) { |
| 481 | if (vgamode[j].mmsizex == sfb->width && |
| 482 | vgamode[j].mmsizey == sfb->height && |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 483 | vgamode[j].bpp == sfb->fb->var.bits_per_pixel && |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 484 | vgamode[j].hz == sfb->hz) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 485 | dev_dbg(&sfb->pdev->dev, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 486 | "vgamode[j].mmsizex=%d vgamode[j].mmSizeY=%d vgamode[j].bpp=%d vgamode[j].hz=%d\n", |
| 487 | vgamode[j].mmsizex, vgamode[j].mmsizey, |
| 488 | vgamode[j].bpp, vgamode[j].hz); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 489 | |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 490 | dev_dbg(&sfb->pdev->dev, "vgamode index=%d\n", j); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 491 | |
| 492 | smtc_mmiowb(0x0, 0x3c6); |
| 493 | |
| 494 | smtc_seqw(0, 0x1); |
| 495 | |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 496 | smtc_mmiowb(vgamode[j].init_misc, 0x3c2); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 497 | |
| 498 | /* init SEQ register SR00 - SR04 */ |
| 499 | for (i = 0; i < SIZE_SR00_SR04; i++) |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 500 | smtc_seqw(i, vgamode[j].init_sr00_sr04[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 501 | |
| 502 | /* init SEQ register SR10 - SR24 */ |
| 503 | for (i = 0; i < SIZE_SR10_SR24; i++) |
| 504 | smtc_seqw(i + 0x10, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 505 | vgamode[j].init_sr10_sr24[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 506 | |
| 507 | /* init SEQ register SR30 - SR75 */ |
| 508 | for (i = 0; i < SIZE_SR30_SR75; i++) |
| 509 | if ((i + 0x30) != 0x62 && |
| 510 | (i + 0x30) != 0x6a && |
| 511 | (i + 0x30) != 0x6b) |
| 512 | smtc_seqw(i + 0x30, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 513 | vgamode[j].init_sr30_sr75[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 514 | |
| 515 | /* init SEQ register SR80 - SR93 */ |
| 516 | for (i = 0; i < SIZE_SR80_SR93; i++) |
| 517 | smtc_seqw(i + 0x80, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 518 | vgamode[j].init_sr80_sr93[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 519 | |
| 520 | /* init SEQ register SRA0 - SRAF */ |
| 521 | for (i = 0; i < SIZE_SRA0_SRAF; i++) |
| 522 | smtc_seqw(i + 0xa0, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 523 | vgamode[j].init_sra0_sraf[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 524 | |
| 525 | /* init Graphic register GR00 - GR08 */ |
| 526 | for (i = 0; i < SIZE_GR00_GR08; i++) |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 527 | smtc_grphw(i, vgamode[j].init_gr00_gr08[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 528 | |
| 529 | /* init Attribute register AR00 - AR14 */ |
| 530 | for (i = 0; i < SIZE_AR00_AR14; i++) |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 531 | smtc_attrw(i, vgamode[j].init_ar00_ar14[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 532 | |
| 533 | /* init CRTC register CR00 - CR18 */ |
| 534 | for (i = 0; i < SIZE_CR00_CR18; i++) |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 535 | smtc_crtcw(i, vgamode[j].init_cr00_cr18[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 536 | |
| 537 | /* init CRTC register CR30 - CR4D */ |
| 538 | for (i = 0; i < SIZE_CR30_CR4D; i++) |
| 539 | smtc_crtcw(i + 0x30, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 540 | vgamode[j].init_cr30_cr4d[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 541 | |
| 542 | /* init CRTC register CR90 - CRA7 */ |
| 543 | for (i = 0; i < SIZE_CR90_CRA7; i++) |
| 544 | smtc_crtcw(i + 0x90, |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 545 | vgamode[j].init_cr90_cra7[i]); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 546 | } |
| 547 | } |
| 548 | smtc_mmiowb(0x67, 0x3c2); |
| 549 | |
| 550 | /* set VPR registers */ |
| 551 | writel(0x0, sfb->vp_regs + 0x0C); |
| 552 | writel(0x0, sfb->vp_regs + 0x40); |
| 553 | |
| 554 | /* set data width */ |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 555 | m_nscreenstride = |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 556 | (sfb->width * sfb->fb->var.bits_per_pixel) / 64; |
| 557 | switch (sfb->fb->var.bits_per_pixel) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 558 | case 8: |
| 559 | writel(0x0, sfb->vp_regs + 0x0); |
| 560 | break; |
| 561 | case 16: |
| 562 | writel(0x00020000, sfb->vp_regs + 0x0); |
| 563 | break; |
| 564 | case 24: |
| 565 | writel(0x00040000, sfb->vp_regs + 0x0); |
| 566 | break; |
| 567 | case 32: |
| 568 | writel(0x00030000, sfb->vp_regs + 0x0); |
| 569 | break; |
| 570 | } |
Sudip Mukherjee | c4d5076 | 2015-02-03 20:23:34 +0530 | [diff] [blame] | 571 | writel((u32) (((m_nscreenstride + 2) << 16) | m_nscreenstride), |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 572 | sfb->vp_regs + 0x10); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | static void smtc_set_timing(struct smtcfb_info *sfb) |
| 576 | { |
| 577 | switch (sfb->chip_id) { |
| 578 | case 0x710: |
| 579 | case 0x712: |
| 580 | case 0x720: |
| 581 | sm7xx_set_timing(sfb); |
| 582 | break; |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | static void smtcfb_setmode(struct smtcfb_info *sfb) |
| 587 | { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 588 | switch (sfb->fb->var.bits_per_pixel) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 589 | case 32: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 590 | sfb->fb->fix.visual = FB_VISUAL_TRUECOLOR; |
| 591 | sfb->fb->fix.line_length = sfb->fb->var.xres * 4; |
| 592 | sfb->fb->var.red.length = 8; |
| 593 | sfb->fb->var.green.length = 8; |
| 594 | sfb->fb->var.blue.length = 8; |
| 595 | sfb->fb->var.red.offset = 16; |
| 596 | sfb->fb->var.green.offset = 8; |
| 597 | sfb->fb->var.blue.offset = 0; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 598 | break; |
| 599 | case 24: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 600 | sfb->fb->fix.visual = FB_VISUAL_TRUECOLOR; |
| 601 | sfb->fb->fix.line_length = sfb->fb->var.xres * 3; |
| 602 | sfb->fb->var.red.length = 8; |
| 603 | sfb->fb->var.green.length = 8; |
| 604 | sfb->fb->var.blue.length = 8; |
| 605 | sfb->fb->var.red.offset = 16; |
| 606 | sfb->fb->var.green.offset = 8; |
| 607 | sfb->fb->var.blue.offset = 0; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 608 | break; |
| 609 | case 8: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 610 | sfb->fb->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
| 611 | sfb->fb->fix.line_length = sfb->fb->var.xres; |
| 612 | sfb->fb->var.red.length = 3; |
| 613 | sfb->fb->var.green.length = 3; |
| 614 | sfb->fb->var.blue.length = 2; |
| 615 | sfb->fb->var.red.offset = 5; |
| 616 | sfb->fb->var.green.offset = 2; |
| 617 | sfb->fb->var.blue.offset = 0; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 618 | break; |
| 619 | case 16: |
| 620 | default: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 621 | sfb->fb->fix.visual = FB_VISUAL_TRUECOLOR; |
| 622 | sfb->fb->fix.line_length = sfb->fb->var.xres * 2; |
| 623 | sfb->fb->var.red.length = 5; |
| 624 | sfb->fb->var.green.length = 6; |
| 625 | sfb->fb->var.blue.length = 5; |
| 626 | sfb->fb->var.red.offset = 11; |
| 627 | sfb->fb->var.green.offset = 5; |
| 628 | sfb->fb->var.blue.offset = 0; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 629 | break; |
| 630 | } |
| 631 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 632 | sfb->width = sfb->fb->var.xres; |
| 633 | sfb->height = sfb->fb->var.yres; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 634 | sfb->hz = 60; |
| 635 | smtc_set_timing(sfb); |
| 636 | } |
| 637 | |
| 638 | static int smtc_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 639 | { |
| 640 | /* sanity checks */ |
| 641 | if (var->xres_virtual < var->xres) |
| 642 | var->xres_virtual = var->xres; |
| 643 | |
| 644 | if (var->yres_virtual < var->yres) |
| 645 | var->yres_virtual = var->yres; |
| 646 | |
| 647 | /* set valid default bpp */ |
| 648 | if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16) && |
| 649 | (var->bits_per_pixel != 24) && (var->bits_per_pixel != 32)) |
| 650 | var->bits_per_pixel = 16; |
| 651 | |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | static int smtc_set_par(struct fb_info *info) |
| 656 | { |
| 657 | smtcfb_setmode(info->par); |
| 658 | |
| 659 | return 0; |
| 660 | } |
| 661 | |
| 662 | static struct fb_ops smtcfb_ops = { |
| 663 | .owner = THIS_MODULE, |
| 664 | .fb_check_var = smtc_check_var, |
| 665 | .fb_set_par = smtc_set_par, |
| 666 | .fb_setcolreg = smtc_setcolreg, |
| 667 | .fb_blank = smtc_blank, |
| 668 | .fb_fillrect = cfb_fillrect, |
| 669 | .fb_imageblit = cfb_imageblit, |
| 670 | .fb_copyarea = cfb_copyarea, |
| 671 | #ifdef __BIG_ENDIAN |
| 672 | .fb_read = smtcfb_read, |
| 673 | .fb_write = smtcfb_write, |
| 674 | #endif |
| 675 | }; |
| 676 | |
| 677 | /* |
| 678 | * alloc struct smtcfb_info and assign default values |
| 679 | */ |
| 680 | static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev) |
| 681 | { |
| 682 | struct smtcfb_info *sfb; |
| 683 | |
| 684 | sfb = kzalloc(sizeof(*sfb), GFP_KERNEL); |
| 685 | |
| 686 | if (!sfb) |
| 687 | return NULL; |
| 688 | |
| 689 | sfb->pdev = pdev; |
| 690 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 691 | sfb->fb->flags = FBINFO_FLAG_DEFAULT; |
| 692 | sfb->fb->fbops = &smtcfb_ops; |
| 693 | sfb->fb->fix = smtcfb_fix; |
| 694 | sfb->fb->var = smtcfb_var; |
| 695 | sfb->fb->pseudo_palette = sfb->colreg; |
| 696 | sfb->fb->par = sfb; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 697 | |
| 698 | return sfb; |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * free struct smtcfb_info |
| 703 | */ |
| 704 | static void smtc_free_fb_info(struct smtcfb_info *sfb) |
| 705 | { |
| 706 | kfree(sfb); |
| 707 | } |
| 708 | |
| 709 | /* |
| 710 | * Unmap in the memory mapped IO registers |
| 711 | */ |
| 712 | |
| 713 | static void smtc_unmap_mmio(struct smtcfb_info *sfb) |
| 714 | { |
Sudip Mukherjee | 7412189 | 2015-02-03 20:23:33 +0530 | [diff] [blame] | 715 | if (sfb && smtc_regbaseaddress) |
| 716 | smtc_regbaseaddress = NULL; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | /* |
| 720 | * Map in the screen memory |
| 721 | */ |
| 722 | |
| 723 | static int smtc_map_smem(struct smtcfb_info *sfb, |
Sudip Mukherjee | f049a52 | 2015-01-19 13:41:06 +0530 | [diff] [blame] | 724 | struct pci_dev *pdev, u_long smem_len) |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 725 | { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 726 | sfb->fb->fix.smem_start = pci_resource_start(pdev, 0); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 727 | |
| 728 | #ifdef __BIG_ENDIAN |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 729 | if (sfb->fb->var.bits_per_pixel == 32) |
| 730 | sfb->fb->fix.smem_start += 0x800000; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 731 | #endif |
| 732 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 733 | sfb->fb->fix.smem_len = smem_len; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 734 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 735 | sfb->fb->screen_base = sfb->lfb; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 736 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 737 | if (!sfb->fb->screen_base) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 738 | dev_err(&pdev->dev, |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 739 | "%s: unable to map screen memory\n", sfb->fb->fix.id); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 740 | return -ENOMEM; |
| 741 | } |
| 742 | |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | /* |
| 747 | * Unmap in the screen memory |
| 748 | * |
| 749 | */ |
| 750 | static void smtc_unmap_smem(struct smtcfb_info *sfb) |
| 751 | { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 752 | if (sfb && sfb->fb->screen_base) { |
| 753 | iounmap(sfb->fb->screen_base); |
| 754 | sfb->fb->screen_base = NULL; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 755 | } |
| 756 | } |
| 757 | |
| 758 | /* |
| 759 | * We need to wake up the device and make sure its in linear memory mode. |
| 760 | */ |
| 761 | static inline void sm7xx_init_hw(void) |
| 762 | { |
| 763 | outb_p(0x18, 0x3c4); |
| 764 | outb_p(0x11, 0x3c5); |
| 765 | } |
| 766 | |
| 767 | static int smtcfb_pci_probe(struct pci_dev *pdev, |
Sudip Mukherjee | f049a52 | 2015-01-19 13:41:06 +0530 | [diff] [blame] | 768 | const struct pci_device_id *ent) |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 769 | { |
| 770 | struct smtcfb_info *sfb; |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 771 | struct fb_info *info; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 772 | u_long smem_size = 0x00800000; /* default 8MB */ |
| 773 | int err; |
| 774 | unsigned long mmio_base; |
| 775 | |
| 776 | dev_info(&pdev->dev, "Silicon Motion display driver."); |
| 777 | |
| 778 | err = pci_enable_device(pdev); /* enable SMTC chip */ |
| 779 | if (err) |
| 780 | return err; |
| 781 | |
Sudip Mukherjee | f30a746 | 2015-03-28 14:33:40 +0530 | [diff] [blame] | 782 | err = pci_request_region(pdev, 0, "sm7xxfb"); |
| 783 | if (err < 0) { |
| 784 | dev_err(&pdev->dev, "cannot reserve framebuffer region\n"); |
| 785 | goto failed_regions; |
| 786 | } |
| 787 | |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 788 | sprintf(smtcfb_fix.id, "sm%Xfb", ent->device); |
| 789 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 790 | info = framebuffer_alloc(sizeof(*sfb), &pdev->dev); |
| 791 | if (!info) { |
| 792 | dev_err(&pdev->dev, "framebuffer_alloc failed\n"); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 793 | err = -ENOMEM; |
| 794 | goto failed_free; |
| 795 | } |
| 796 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 797 | sfb = info->par; |
| 798 | sfb->fb = info; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 799 | sfb->chip_id = ent->device; |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 800 | sfb->pdev = pdev; |
| 801 | info->flags = FBINFO_FLAG_DEFAULT; |
| 802 | info->fbops = &smtcfb_ops; |
| 803 | info->fix = smtcfb_fix; |
| 804 | info->var = smtcfb_var; |
| 805 | info->pseudo_palette = sfb->colreg; |
| 806 | info->par = sfb; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 807 | |
| 808 | pci_set_drvdata(pdev, sfb); |
| 809 | |
| 810 | sm7xx_init_hw(); |
| 811 | |
| 812 | /* get mode parameter from smtc_scr_info */ |
| 813 | if (smtc_scr_info.lfb_width != 0) { |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 814 | sfb->fb->var.xres = smtc_scr_info.lfb_width; |
| 815 | sfb->fb->var.yres = smtc_scr_info.lfb_height; |
| 816 | sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 817 | } else { |
| 818 | /* default resolution 1024x600 16bit mode */ |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 819 | sfb->fb->var.xres = SCREEN_X_RES; |
| 820 | sfb->fb->var.yres = SCREEN_Y_RES; |
| 821 | sfb->fb->var.bits_per_pixel = SCREEN_BPP; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 822 | } |
| 823 | |
| 824 | #ifdef __BIG_ENDIAN |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 825 | if (sfb->fb->var.bits_per_pixel == 24) |
| 826 | sfb->fb->var.bits_per_pixel = (smtc_scr_info.lfb_depth = 32); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 827 | #endif |
| 828 | /* Map address and memory detection */ |
| 829 | mmio_base = pci_resource_start(pdev, 0); |
| 830 | pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id); |
| 831 | |
| 832 | switch (sfb->chip_id) { |
| 833 | case 0x710: |
| 834 | case 0x712: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 835 | sfb->fb->fix.mmio_start = mmio_base + 0x00400000; |
| 836 | sfb->fb->fix.mmio_len = 0x00400000; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 837 | smem_size = SM712_VIDEOMEMORYSIZE; |
| 838 | #ifdef __BIG_ENDIAN |
| 839 | sfb->lfb = ioremap(mmio_base, 0x00c00000); |
| 840 | #else |
| 841 | sfb->lfb = ioremap(mmio_base, 0x00800000); |
| 842 | #endif |
Sudip Mukherjee | 7412189 | 2015-02-03 20:23:33 +0530 | [diff] [blame] | 843 | sfb->mmio = (smtc_regbaseaddress = |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 844 | sfb->lfb + 0x00700000); |
| 845 | sfb->dp_regs = sfb->lfb + 0x00408000; |
| 846 | sfb->vp_regs = sfb->lfb + 0x0040c000; |
| 847 | #ifdef __BIG_ENDIAN |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 848 | if (sfb->fb->var.bits_per_pixel == 32) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 849 | sfb->lfb += 0x800000; |
| 850 | dev_info(&pdev->dev, "sfb->lfb=%p", sfb->lfb); |
| 851 | } |
| 852 | #endif |
Sudip Mukherjee | 7412189 | 2015-02-03 20:23:33 +0530 | [diff] [blame] | 853 | if (!smtc_regbaseaddress) { |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 854 | dev_err(&pdev->dev, |
| 855 | "%s: unable to map memory mapped IO!", |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 856 | sfb->fb->fix.id); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 857 | err = -ENOMEM; |
| 858 | goto failed_fb; |
| 859 | } |
| 860 | |
| 861 | /* set MCLK = 14.31818 * (0x16 / 0x2) */ |
| 862 | smtc_seqw(0x6a, 0x16); |
| 863 | smtc_seqw(0x6b, 0x02); |
| 864 | smtc_seqw(0x62, 0x3e); |
| 865 | /* enable PCI burst */ |
| 866 | smtc_seqw(0x17, 0x20); |
| 867 | /* enable word swap */ |
| 868 | #ifdef __BIG_ENDIAN |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 869 | if (sfb->fb->var.bits_per_pixel == 32) |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 870 | smtc_seqw(0x17, 0x30); |
| 871 | #endif |
| 872 | break; |
| 873 | case 0x720: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 874 | sfb->fb->fix.mmio_start = mmio_base; |
| 875 | sfb->fb->fix.mmio_len = 0x00200000; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 876 | smem_size = SM722_VIDEOMEMORYSIZE; |
| 877 | sfb->dp_regs = ioremap(mmio_base, 0x00a00000); |
| 878 | sfb->lfb = sfb->dp_regs + 0x00200000; |
Sudip Mukherjee | 7412189 | 2015-02-03 20:23:33 +0530 | [diff] [blame] | 879 | sfb->mmio = (smtc_regbaseaddress = |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 880 | sfb->dp_regs + 0x000c0000); |
| 881 | sfb->vp_regs = sfb->dp_regs + 0x800; |
| 882 | |
| 883 | smtc_seqw(0x62, 0xff); |
| 884 | smtc_seqw(0x6a, 0x0d); |
| 885 | smtc_seqw(0x6b, 0x02); |
| 886 | break; |
| 887 | default: |
| 888 | dev_err(&pdev->dev, |
| 889 | "No valid Silicon Motion display chip was detected!"); |
| 890 | |
| 891 | goto failed_fb; |
| 892 | } |
| 893 | |
| 894 | /* can support 32 bpp */ |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 895 | if (15 == sfb->fb->var.bits_per_pixel) |
| 896 | sfb->fb->var.bits_per_pixel = 16; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 897 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 898 | sfb->fb->var.xres_virtual = sfb->fb->var.xres; |
| 899 | sfb->fb->var.yres_virtual = sfb->fb->var.yres; |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 900 | err = smtc_map_smem(sfb, pdev, smem_size); |
| 901 | if (err) |
| 902 | goto failed; |
| 903 | |
| 904 | smtcfb_setmode(sfb); |
| 905 | |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 906 | err = register_framebuffer(info); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 907 | if (err < 0) |
| 908 | goto failed; |
| 909 | |
| 910 | dev_info(&pdev->dev, |
| 911 | "Silicon Motion SM%X Rev%X primary display mode %dx%d-%d Init Complete.", |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 912 | sfb->chip_id, sfb->chip_rev_id, sfb->fb->var.xres, |
| 913 | sfb->fb->var.yres, sfb->fb->var.bits_per_pixel); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 914 | |
| 915 | return 0; |
| 916 | |
| 917 | failed: |
| 918 | dev_err(&pdev->dev, "Silicon Motion, Inc. primary display init fail."); |
| 919 | |
| 920 | smtc_unmap_smem(sfb); |
| 921 | smtc_unmap_mmio(sfb); |
| 922 | failed_fb: |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 923 | framebuffer_release(info); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 924 | |
| 925 | failed_free: |
Sudip Mukherjee | f30a746 | 2015-03-28 14:33:40 +0530 | [diff] [blame] | 926 | pci_release_region(pdev, 0); |
| 927 | |
| 928 | failed_regions: |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 929 | pci_disable_device(pdev); |
| 930 | |
| 931 | return err; |
| 932 | } |
| 933 | |
| 934 | /* |
| 935 | * 0x710 (LynxEM) |
| 936 | * 0x712 (LynxEM+) |
| 937 | * 0x720 (Lynx3DM, Lynx3DM+) |
| 938 | */ |
| 939 | static const struct pci_device_id smtcfb_pci_table[] = { |
| 940 | { PCI_DEVICE(0x126f, 0x710), }, |
| 941 | { PCI_DEVICE(0x126f, 0x712), }, |
| 942 | { PCI_DEVICE(0x126f, 0x720), }, |
| 943 | {0,} |
| 944 | }; |
| 945 | |
Sudip Mukherjee | 855fe6ea | 2015-03-24 16:22:24 +0530 | [diff] [blame] | 946 | MODULE_DEVICE_TABLE(pci, smtcfb_pci_table); |
| 947 | |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 948 | static void smtcfb_pci_remove(struct pci_dev *pdev) |
| 949 | { |
| 950 | struct smtcfb_info *sfb; |
| 951 | |
| 952 | sfb = pci_get_drvdata(pdev); |
| 953 | smtc_unmap_smem(sfb); |
| 954 | smtc_unmap_mmio(sfb); |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 955 | unregister_framebuffer(sfb->fb); |
| 956 | framebuffer_release(sfb->fb); |
Sudip Mukherjee | f30a746 | 2015-03-28 14:33:40 +0530 | [diff] [blame] | 957 | pci_release_region(pdev, 0); |
Sudip Mukherjee | f83e775 | 2015-03-28 14:33:41 +0530 | [diff] [blame] | 958 | pci_disable_device(pdev); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 959 | } |
| 960 | |
| 961 | #ifdef CONFIG_PM |
| 962 | static int smtcfb_pci_suspend(struct device *device) |
| 963 | { |
| 964 | struct pci_dev *pdev = to_pci_dev(device); |
| 965 | struct smtcfb_info *sfb; |
| 966 | |
| 967 | sfb = pci_get_drvdata(pdev); |
| 968 | |
| 969 | /* set the hw in sleep mode use external clock and self memory refresh |
| 970 | * so that we can turn off internal PLLs later on |
| 971 | */ |
| 972 | smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0)); |
| 973 | smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7)); |
| 974 | |
| 975 | console_lock(); |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 976 | fb_set_suspend(sfb->fb, 1); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 977 | console_unlock(); |
| 978 | |
| 979 | /* additionally turn off all function blocks including internal PLLs */ |
| 980 | smtc_seqw(0x21, 0xff); |
| 981 | |
| 982 | return 0; |
| 983 | } |
| 984 | |
| 985 | static int smtcfb_pci_resume(struct device *device) |
| 986 | { |
| 987 | struct pci_dev *pdev = to_pci_dev(device); |
| 988 | struct smtcfb_info *sfb; |
| 989 | |
| 990 | sfb = pci_get_drvdata(pdev); |
| 991 | |
| 992 | /* reinit hardware */ |
| 993 | sm7xx_init_hw(); |
| 994 | switch (sfb->chip_id) { |
| 995 | case 0x710: |
| 996 | case 0x712: |
| 997 | /* set MCLK = 14.31818 * (0x16 / 0x2) */ |
| 998 | smtc_seqw(0x6a, 0x16); |
| 999 | smtc_seqw(0x6b, 0x02); |
| 1000 | smtc_seqw(0x62, 0x3e); |
| 1001 | /* enable PCI burst */ |
| 1002 | smtc_seqw(0x17, 0x20); |
| 1003 | #ifdef __BIG_ENDIAN |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 1004 | if (sfb->fb->var.bits_per_pixel == 32) |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 1005 | smtc_seqw(0x17, 0x30); |
| 1006 | #endif |
| 1007 | break; |
| 1008 | case 0x720: |
| 1009 | smtc_seqw(0x62, 0xff); |
| 1010 | smtc_seqw(0x6a, 0x0d); |
| 1011 | smtc_seqw(0x6b, 0x02); |
| 1012 | break; |
| 1013 | } |
| 1014 | |
| 1015 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0)); |
| 1016 | smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb)); |
| 1017 | |
| 1018 | smtcfb_setmode(sfb); |
| 1019 | |
| 1020 | console_lock(); |
Sudip Mukherjee | cd14ad8 | 2015-04-23 19:08:16 +0530 | [diff] [blame^] | 1021 | fb_set_suspend(sfb->fb, 0); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 1022 | console_unlock(); |
| 1023 | |
| 1024 | return 0; |
| 1025 | } |
| 1026 | |
| 1027 | static SIMPLE_DEV_PM_OPS(sm7xx_pm_ops, smtcfb_pci_suspend, smtcfb_pci_resume); |
| 1028 | #define SM7XX_PM_OPS (&sm7xx_pm_ops) |
| 1029 | |
| 1030 | #else /* !CONFIG_PM */ |
| 1031 | |
| 1032 | #define SM7XX_PM_OPS NULL |
| 1033 | |
| 1034 | #endif /* !CONFIG_PM */ |
| 1035 | |
| 1036 | static struct pci_driver smtcfb_driver = { |
| 1037 | .name = "smtcfb", |
| 1038 | .id_table = smtcfb_pci_table, |
| 1039 | .probe = smtcfb_pci_probe, |
| 1040 | .remove = smtcfb_pci_remove, |
| 1041 | .driver.pm = SM7XX_PM_OPS, |
| 1042 | }; |
| 1043 | |
Sudip Mukherjee | c65434e | 2015-03-08 23:10:09 +0530 | [diff] [blame] | 1044 | static int __init sm712fb_init(void) |
| 1045 | { |
| 1046 | #ifndef MODULE |
| 1047 | char *option = NULL; |
| 1048 | |
| 1049 | if (fb_get_options("sm712fb", &option)) |
| 1050 | return -ENODEV; |
| 1051 | if (option && *option) |
| 1052 | mode_option = option; |
| 1053 | #endif |
| 1054 | sm7xx_vga_setup(mode_option); |
| 1055 | |
| 1056 | return pci_register_driver(&smtcfb_driver); |
| 1057 | } |
| 1058 | |
| 1059 | module_init(sm712fb_init); |
| 1060 | |
| 1061 | static void __exit sm712fb_exit(void) |
| 1062 | { |
| 1063 | pci_unregister_driver(&smtcfb_driver); |
| 1064 | } |
| 1065 | |
| 1066 | module_exit(sm712fb_exit); |
Sudip Mukherjee | a8e8f89 | 2015-01-19 13:41:00 +0530 | [diff] [blame] | 1067 | |
| 1068 | MODULE_AUTHOR("Siliconmotion "); |
| 1069 | MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards"); |
| 1070 | MODULE_LICENSE("GPL"); |