/*-*- linux-c -*- * linux/drivers/video/i810_dvt.c -- Intel 810 Discrete Video Timings (Intel) * * Copyright (C) 2001 Antonino Daplas * All Rights Reserved * * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #include #include "i810_regs.h" #include "i810.h" struct mode_registers std_modes[] = { /* 640x480 @ 60Hz */ { 25000, 0x0013, 0x0003, 0x40, 0x5F, 0x4F, 0x50, 0x82, 0x51, 0x9D, 0x0B, 0x10, 0x40, 0xE9, 0x0B, 0xDF, 0x50, 0xE7, 0x04, 0x02, 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22006000, 0x22002000, 0x22004000, 0x22006000, 0xC0 }, /* 640x480 @ 70Hz */ { 28000, 0x0053, 0x0010, 0x40, 0x61, 0x4F, 0x4F, 0x85, 0x52, 0x9A, 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01, 0x01, 0x01, 0x01, 0x00, 0x01, 0x22002000, 0x22004000, 0x22005000, 0x22002000, 0x22004000, 0x22005000, 0xC0 }, /* 640x480 @ 72Hz */ { 31000, 0x0013, 0x0002, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x52, 0x97, 0x06, 0x0F, 0x40, 0xE8, 0x0B, 0xDF, 0x50, 0xDF, 0x07, 0x02, 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000, 0x22003000, 0x22005000, 0x22007000, 0xC0 }, /* 640x480 @ 75Hz */ { 31000, 0x0013, 0x0002, 0x40, 0x64, 0x4F, 0x4F, 0x88, 0x51, 0x99, 0xF2, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xF3, 0x01, 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22007000, 0x22003000, 0x22005000, 0x22007000, 0xC0 }, /* 640x480 @ 85Hz */ { 36000, 0x0010, 0x0001, 0x40, 0x63, 0x4F, 0x4F, 0x87, 0x56, 0x9D, 0xFB, 0x10, 0x40, 0xE0, 0x03, 0xDF, 0x50, 0xDF, 0xFC, 0x01, 0x01, 0x01, 0x01, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000, 0x22003000, 0x22005000, 0x22107000, 0xC0 }, /* 800x600 @ 56Hz */ { 36000, 0x0010, 0x0001, 0x40, 0x7B, 0x63, 0x63, 0x9F, 0x66, 0x8F, 0x6F, 0x10, 0x40, 0x58, 0x0A, 0x57, 0xC8, 0x57, 0x70, 0x02, 0x02, 0x02, 0x02, 0x00, 0x01, 0x22003000, 0x22005000, 0x22107000, 0x22003000, 0x22005000, 0x22107000, 0x00 }, /* 800x600 @ 60Hz */ { 40000, 0x0008, 0x0001, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x68, 0x18, 0x72, 0x10, 0x40, 0x58, 0x0C, 0x57, 0xC8, 0x57, 0x73, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x22003000, 0x22006000, 0x22108000, 0x22003000, 0x22006000, 0x22108000, 0x00 }, /* 800x600 @ 70Hz */ { 45000, 0x0054, 0x0015, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x68, 0x12, 0x6f, 0x10, 0x40, 0x58, 0x0b, 0x57, 0x64, 0x57, 0x70, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000, 0x22004000, 0x22007000, 0x2210A000, 0x00 }, /* 800x600 @ 72Hz */ { 50000, 0x0017, 0x0004, 0x30, 0x7D, 0x63, 0x63, 0x81, 0x6A, 0x19, 0x98, 0x10, 0x40, 0x7C, 0x02, 0x57, 0xC8, 0x57, 0x99, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210A000, 0x22004000, 0x22007000, 0x2210A000, 0x00 }, /* 800x600 @ 75Hz */ { 49000, 0x001F, 0x0006, 0x30, 0x7F, 0x63, 0x63, 0x83, 0x65, 0x0F, 0x6F, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x70, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22007000, 0x2210B000, 0x22004000, 0x22007000, 0x2210B000, 0x00 }, /* 800x600 @ 85Hz */ { 56000, 0x0049, 0x000E, 0x30, 0x7E, 0x63, 0x63, 0x82, 0x67, 0x0F, 0x75, 0x10, 0x40, 0x58, 0x0B, 0x57, 0xC8, 0x57, 0x76, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x22004000, 0x22108000, 0x2210b000, 0x22004000, 0x22108000, 0x2210b000, 0x00 }, /* 1024x768 @ 60Hz */ { 65000, 0x003F, 0x000A, 0x30, 0xA3, 0x7F, 0x7F, 0x87, 0x83, 0x94, 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03, 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x22109000, 0x2220D000, 0x22005000, 0x22109000, 0x2220D000, 0xC0 }, /* 1024x768 @ 70Hz */ { 75000, 0x0017, 0x0002, 0x30, 0xA1, 0x7F, 0x7F, 0x85, 0x82, 0x93, 0x24, 0x10, 0x40, 0x02, 0x08, 0xFF, 0x80, 0xFF, 0x25, 0x03, 0x02, 0x03, 0x02, 0x00, 0x00, 0x22005000, 0x2210A000, 0x2220F000, 0x22005000, 0x2210A000, 0x2220F000, 0xC0 }, /* 1024x768 @ 75Hz */ { 78000, 0x0050, 0x0017, 0x20, 0x9F, 0x7F, 0x7F, 0x83, 0x81, 0x8D, 0x1E, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x1F, 0x03, 0x02, 0x03, 0x02, 0x00, 0x00, 0x22006000, 0x2210B000, 0x22210000, 0x22006000, 0x2210B000, 0x22210000, 0x00 }, /* 1024x768 @ 85Hz */ { 94000, 0x003D, 0x000E, 0x20, 0xA7, 0x7F, 0x7F, 0x8B, 0x85, 0x91, 0x26, 0x10, 0x40, 0x00, 0x03, 0xFF, 0x80, 0xFF, 0x27, 0x03, 0x02, 0x03, 0x02, 0x00, 0x00, 0x22007000, 0x2220E000, 0x22212000, 0x22007000, 0x2220E000, 0x22212000, 0x00 }, /* 1152x864 @ 60Hz */ { 80000, 0x0008, 0x0001, 0x20, 0xB3, 0x8F, 0x8F, 0x97, 0x93, 0x9f, 0x87, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5f, 0x88, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x2220C000, 0x22210000, 0x22415000, 0x2220C000, 0x22210000, 0x22415000, 0x00 }, /* 1152x864 @ 70Hz */ { 96000, 0x000a, 0x0001, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87, 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000, 0x22107000, 0x22210000, 0x22415000, 0x00 }, /* 1152x864 @ 72Hz */ { 99000, 0x001f, 0x0006, 0x20, 0xbb, 0x8F, 0x8F, 0x9f, 0x98, 0x87, 0x83, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x84, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x22107000, 0x22210000, 0x22415000, 0x22107000, 0x22210000, 0x22415000, 0x00 }, /* 1152x864 @ 75Hz */ { 108000, 0x0010, 0x0002, 0x20, 0xC3, 0x8F, 0x8F, 0x87, 0x97, 0x07, 0x82, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x83, 0x03, 0x03, 0x03, 0x03, 0x00, 0x01, 0x22107000, 0x22210000, 0x22415000, 0x22107000, 0x22210000, 0x22415000, 0x00 }, /* 1152x864 @ 85Hz */ { 121000, 0x006D, 0x0014, 0x20, 0xc0, 0x8F, 0x8F, 0x84, 0x97, 0x07, 0x93, 0x10, 0x40, 0x60, 0x03, 0x5F, 0x90, 0x5F, 0x94, 0x03, 0x03, 0x03, 0x03, 0x00, 0x01, 0x2220C000, 0x22210000, 0x22415000, 0x2220C000, 0x22210000, 0x22415000, 0x0 }, /* 1280x960 @ 60Hz */ { 108000, 0x0010, 0x0002, 0x20, 0xDC, 0x9F, 0x9F, 0x80, 0xAB, 0x99, 0xE6, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE7, 0x03, 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x22415000, 0x2210A000, 0x22210000, 0x22415000, 0x00 }, /* 1280x960 @ 75Hz */ { 129000, 0x0029, 0x0006, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xaa, 0x1b, 0xE8, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xE9, 0x03, 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22210000, 0x2241B000, 0x2210A000, 0x22210000, 0x2241B000, 0x00 }, /* 1280x960 @ 85Hz */ { 148000, 0x0042, 0x0009, 0x20, 0xD3, 0x9F, 0x9F, 0x97, 0xA7, 0x1B, 0xF1, 0x10, 0x40, 0xC0, 0x03, 0xBF, 0xA0, 0xBF, 0xF2, 0x03, 0x03, 0x03, 0x03, 0x00, 0x01, 0x2210A000, 0x22220000, 0x2241D000, 0x2210A000, 0x22220000, 0x2241D000, 0x00 }, /* 1600x1200 @ 60Hz */ { 162000, 0x0019, 0x0006, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07, 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210b000, 0x22416000, 0x44419000, 0x2210b000, 0x22416000, 0x44419000, 0x00 }, /* 1600x1200 @ 65 Hz */ { 175000, 0x005d, 0x0018, 0x10, 0x09, 0xC7, 0xC7, 0x8D, 0xcf, 0x07, 0xE0, 0x10, 0x40, 0xB0, 0x03, 0xAF, 0xC8, 0xAF, 0xE1, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x2210c000, 0x22416000, 0x44419000, 0x2210c000, 0x22416000, 0x44419000, 0x00 }, /* 1600x1200 @ 70 Hz */ { 189000, 0x003D, 0x000e, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, 0x2220e000, 0x22416000, 0x44419000, 0x00 }, /* 1600x1200 @ 72 Hz */ { 195000, 0x003f, 0x000e, 0x10, 0x0b, 0xC7, 0xC7, 0x8f, 0xd5, 0x0b, 0xE1, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xe2, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, 0x2220e000, 0x22416000, 0x44419000, 0x00 }, /* 1600x1200 @ 75 Hz */ { 202000, 0x0024, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x2220e000, 0x22416000, 0x44419000, 0x2220e000, 0x22416000, 0x44419000, 0x00 }, /* 1600x1200 @ 85 Hz */ { 229000, 0x0029, 0x0007, 0x10, 0x09, 0xC7, 0xC7, 0x8d, 0xcf, 0x07, 0xE0, 0x10, 0x40, 0xb0, 0x03, 0xAF, 0xC8, 0xaf, 0xE1, 0x04, 0x04, 0x04, 0x04, 0x01, 0x00, 0x22210000, 0x22416000, 0x0, 0x22210000, 0x22416000, 0x0, 0x00 }, }; void round_off_xres(u32 *xres) { if (*xres <= 640) *xres = 640; else if (*xres <= 800) *xres = 800; else if (*xres <= 1024) *xres = 1024; else if (*xres <= 1152) *xres = 1152; else if (*xres <= 1280) *xres = 1280; else *xres = 1600; } inline void round_off_yres(u32 *xres, u32 *yres) { *yres = (*xres * 3) >> 2; } static int i810fb_find_best_mode(u32 xres, u32 yres, u32 pixclock) { u32 diff = 0, diff_best = 0xFFFFFFFF, i = 0, i_best = 0; u8 hfl = (u8) ((xres >> 3) - 1); for (i = 0; i < ARRAY_SIZE(std_modes); i++) { if (std_modes[i].cr01 == hfl) { if (std_modes[i].pixclock <= pixclock) diff = pixclock - std_modes[i].pixclock; if (diff < diff_best) { i_best = i; diff_best = diff; } } } return i_best; } void i810fb_encode_registers(const struct fb_var_screeninfo *var, struct i810fb_par *par, u32 xres, u32 yres) { u32 i_best = i810fb_find_best_mode(xres, yres, par->regs.pixclock); par->regs = std_modes[i_best]; /* overlay */ par->ovract = ((xres + var->right_margin + var->hsync_len + var->left_margin - 32) | ((xres - 32) << 16)); } void i810fb_fill_var_timings(struct fb_var_screeninfo *var) { u32 total, xres, yres; u32 mode, pixclock; xres = var->xres; yres = var->yres; pixclock = 1000000000 / var->pixclock; mode = i810fb_find_best_mode(xres, yres, pixclock); total = (std_modes[mode].cr00 | (std_modes[mode].cr35 & 1) << 8) + 3; total <<= 3; var->pixclock = 1000000000 / std_modes[mode].pixclock; var->right_margin = (std_modes[mode].cr04 << 3) - xres; var->hsync_len = ((std_modes[mode].cr05 & 0x1F) - (std_modes[mode].cr04 & 0x1F)) << 3; var->left_margin = (total - (xres + var->right_margin + var->hsync_len)); var->sync = FB_SYNC_ON_GREEN; if (~(std_modes[mode].msr & (1 << 6))) var->sync |= FB_SYNC_HOR_HIGH_ACT; if (~(std_modes[mode].msr & (1 << 7))) var->sync |= FB_SYNC_VERT_HIGH_ACT; total = (std_modes[mode].cr06 | (std_modes[mode].cr30 & 0xF) << 8) + 2; var->lower_margin = (std_modes[mode].cr10 | (std_modes[mode].cr32 & 0x0F) << 8) - yres; var->vsync_len = (std_modes[mode].cr11 & 0x0F) - (var->lower_margin & 0x0F); var->upper_margin = total - (yres + var->lower_margin + var->vsync_len); } u32 i810_get_watermark(struct fb_var_screeninfo *var, struct i810fb_par *par) { struct mode_registers *params = &par->regs; u32 wmark = 0; if (par->mem_freq == 100) { switch (var->bits_per_pixel) { case 8: wmark = params->bpp8_100; break; case 16: wmark = params->bpp16_100; break; case 24: case 32: wmark = params->bpp24_100; } } else { switch (var->bits_per_pixel) { case 8: wmark = params->bpp8_133; break; case 16: wmark = params->bpp16_133; break; case 24: case 32: wmark = params->bpp24_133; } } return wmark; }