Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Benjamin Herrenschmidt | 4764 | 91.62% | 10 | 24.39% |
Tony Breeds | 144 | 2.77% | 1 | 2.44% |
Pekka J Enberg | 70 | 1.35% | 2 | 4.88% |
James Simmons | 48 | 0.92% | 5 | 12.20% |
David S. Miller | 40 | 0.77% | 1 | 2.44% |
Linus Torvalds | 35 | 0.67% | 5 | 12.20% |
Linus Torvalds (pre-git) | 33 | 0.63% | 5 | 12.20% |
Jean Delvare | 30 | 0.58% | 2 | 4.88% |
Kevin Hao | 10 | 0.19% | 1 | 2.44% |
Antonino A. Daplas | 10 | 0.19% | 1 | 2.44% |
Stephen Rothwell | 5 | 0.10% | 1 | 2.44% |
Jeremy Kerr | 3 | 0.06% | 1 | 2.44% |
Alexey Dobriyan | 3 | 0.06% | 1 | 2.44% |
Masahiro Yamada | 1 | 0.02% | 1 | 2.44% |
Adrian Bunk | 1 | 0.02% | 1 | 2.44% |
Julia Lawall | 1 | 0.02% | 1 | 2.44% |
Andrew Morton | 1 | 0.02% | 1 | 2.44% |
Greg Kroah-Hartman | 1 | 0.02% | 1 | 2.44% |
Total | 5200 | 41 |
// SPDX-License-Identifier: GPL-2.0 #include "radeonfb.h" #include <linux/slab.h> #include "../edid.h" static const struct fb_var_screeninfo radeonfb_default_var = { .xres = 640, .yres = 480, .xres_virtual = 640, .yres_virtual = 480, .bits_per_pixel = 8, .red = { .length = 8 }, .green = { .length = 8 }, .blue = { .length = 8 }, .activate = FB_ACTIVATE_NOW, .height = -1, .width = -1, .pixclock = 39721, .left_margin = 40, .right_margin = 24, .upper_margin = 32, .lower_margin = 11, .hsync_len = 96, .vsync_len = 2, .vmode = FB_VMODE_NONINTERLACED }; static char *radeon_get_mon_name(int type) { char *pret = NULL; switch (type) { case MT_NONE: pret = "no"; break; case MT_CRT: pret = "CRT"; break; case MT_DFP: pret = "DFP"; break; case MT_LCD: pret = "LCD"; break; case MT_CTV: pret = "CTV"; break; case MT_STV: pret = "STV"; break; } return pret; } #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) /* * Try to find monitor informations & EDID data out of the Open Firmware * device-tree. This also contains some "hacks" to work around a few machine * models with broken OF probing by hard-coding known EDIDs for some Mac * laptops internal LVDS panel. (XXX: not done yet) */ static int radeon_parse_montype_prop(struct device_node *dp, u8 **out_EDID, int hdno) { static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID2", NULL }; const u8 *pedid = NULL; const u8 *pmt = NULL; u8 *tmp; int i, mt = MT_NONE; pr_debug("analyzing OF properties...\n"); pmt = of_get_property(dp, "display-type", NULL); if (!pmt) return MT_NONE; pr_debug("display-type: %s\n", pmt); /* OF says "LCD" for DFP as well, we discriminate from the caller of this * function */ if (!strcmp(pmt, "LCD") || !strcmp(pmt, "DFP")) mt = MT_DFP; else if (!strcmp(pmt, "CRT")) mt = MT_CRT; else { if (strcmp(pmt, "NONE") != 0) printk(KERN_WARNING "radeonfb: Unknown OF display-type: %s\n", pmt); return MT_NONE; } for (i = 0; propnames[i] != NULL; ++i) { pedid = of_get_property(dp, propnames[i], NULL); if (pedid != NULL) break; } /* We didn't find the EDID in the leaf node, some cards will actually * put EDID1/EDID2 in the parent, look for these (typically M6 tipb). * single-head cards have hdno == -1 and skip this step */ if (pedid == NULL && dp->parent && (hdno != -1)) pedid = of_get_property(dp->parent, (hdno == 0) ? "EDID1" : "EDID2", NULL); if (pedid == NULL && dp->parent && (hdno == 0)) pedid = of_get_property(dp->parent, "EDID", NULL); if (pedid == NULL) return mt; tmp = kmemdup(pedid, EDID_LENGTH, GFP_KERNEL); if (!tmp) return mt; *out_EDID = tmp; return mt; } static int radeon_probe_OF_head(struct radeonfb_info *rinfo, int head_no, u8 **out_EDID) { struct device_node *dp; pr_debug("radeon_probe_OF_head\n"); dp = rinfo->of_node; while (dp == NULL) return MT_NONE; if (rinfo->has_CRTC2) { const char *pname; int len, second = 0; dp = dp->child; do { if (!dp) return MT_NONE; pname = of_get_property(dp, "name", NULL); if (!pname) return MT_NONE; len = strlen(pname); pr_debug("head: %s (letter: %c, head_no: %d)\n", pname, pname[len-1], head_no); if (pname[len-1] == 'A' && head_no == 0) { int mt = radeon_parse_montype_prop(dp, out_EDID, 0); /* Maybe check for LVDS_GEN_CNTL here ? I need to check out * what OF does when booting with lid closed */ if (mt == MT_DFP && rinfo->is_mobility) mt = MT_LCD; return mt; } else if (pname[len-1] == 'B' && head_no == 1) return radeon_parse_montype_prop(dp, out_EDID, 1); second = 1; dp = dp->sibling; } while(!second); } else { if (head_no > 0) return MT_NONE; return radeon_parse_montype_prop(dp, out_EDID, -1); } return MT_NONE; } #endif /* CONFIG_PPC || CONFIG_SPARC */ static int radeon_get_panel_info_BIOS(struct radeonfb_info *rinfo) { unsigned long tmp, tmp0; char stmp[30]; int i; if (!rinfo->bios_seg) return 0; if (!(tmp = BIOS_IN16(rinfo->fp_bios_start + 0x40))) { printk(KERN_ERR "radeonfb: Failed to detect DFP panel info using BIOS\n"); rinfo->panel_info.pwr_delay = 200; return 0; } for(i=0; i<24; i++) stmp[i] = BIOS_IN8(tmp+i+1); stmp[24] = 0; printk("radeonfb: panel ID string: %s\n", stmp); rinfo->panel_info.xres = BIOS_IN16(tmp + 25); rinfo->panel_info.yres = BIOS_IN16(tmp + 27); printk("radeonfb: detected LVDS panel size from BIOS: %dx%d\n", rinfo->panel_info.xres, rinfo->panel_info.yres); rinfo->panel_info.pwr_delay = BIOS_IN16(tmp + 44); pr_debug("BIOS provided panel power delay: %d\n", rinfo->panel_info.pwr_delay); if (rinfo->panel_info.pwr_delay > 2000 || rinfo->panel_info.pwr_delay <= 0) rinfo->panel_info.pwr_delay = 2000; /* * Some panels only work properly with some divider combinations */ rinfo->panel_info.ref_divider = BIOS_IN16(tmp + 46); rinfo->panel_info.post_divider = BIOS_IN8(tmp + 48); rinfo->panel_info.fbk_divider = BIOS_IN16(tmp + 49); if (rinfo->panel_info.ref_divider != 0 && rinfo->panel_info.fbk_divider > 3) { rinfo->panel_info.use_bios_dividers = 1; printk(KERN_INFO "radeondb: BIOS provided dividers will be used\n"); pr_debug("ref_divider = %x\n", rinfo->panel_info.ref_divider); pr_debug("post_divider = %x\n", rinfo->panel_info.post_divider); pr_debug("fbk_divider = %x\n", rinfo->panel_info.fbk_divider); } pr_debug("Scanning BIOS table ...\n"); for(i=0; i<32; i++) { tmp0 = BIOS_IN16(tmp+64+i*2); if (tmp0 == 0) break; pr_debug(" %d x %d\n", BIOS_IN16(tmp0), BIOS_IN16(tmp0+2)); if ((BIOS_IN16(tmp0) == rinfo->panel_info.xres) && (BIOS_IN16(tmp0+2) == rinfo->panel_info.yres)) { rinfo->panel_info.hblank = (BIOS_IN16(tmp0+17) - BIOS_IN16(tmp0+19)) * 8; rinfo->panel_info.hOver_plus = ((BIOS_IN16(tmp0+21) - BIOS_IN16(tmp0+19) -1) * 8) & 0x7fff; rinfo->panel_info.hSync_width = BIOS_IN8(tmp0+23) * 8; rinfo->panel_info.vblank = BIOS_IN16(tmp0+24) - BIOS_IN16(tmp0+26); rinfo->panel_info.vOver_plus = (BIOS_IN16(tmp0+28) & 0x7ff) - BIOS_IN16(tmp0+26); rinfo->panel_info.vSync_width = (BIOS_IN16(tmp0+28) & 0xf800) >> 11; rinfo->panel_info.clock = BIOS_IN16(tmp0+9); /* Assume high active syncs for now until ATI tells me more... maybe we * can probe register values here ? */ rinfo->panel_info.hAct_high = 1; rinfo->panel_info.vAct_high = 1; /* Mark panel infos valid */ rinfo->panel_info.valid = 1; pr_debug("Found panel in BIOS table:\n"); pr_debug(" hblank: %d\n", rinfo->panel_info.hblank); pr_debug(" hOver_plus: %d\n", rinfo->panel_info.hOver_plus); pr_debug(" hSync_width: %d\n", rinfo->panel_info.hSync_width); pr_debug(" vblank: %d\n", rinfo->panel_info.vblank); pr_debug(" vOver_plus: %d\n", rinfo->panel_info.vOver_plus); pr_debug(" vSync_width: %d\n", rinfo->panel_info.vSync_width); pr_debug(" clock: %d\n", rinfo->panel_info.clock); return 1; } } pr_debug("Didn't find panel in BIOS table !\n"); return 0; } /* Try to extract the connector informations from the BIOS. This * doesn't quite work yet, but it's output is still useful for * debugging */ static void radeon_parse_connector_info(struct radeonfb_info *rinfo) { int offset, chips, connectors, tmp, i, conn, type; static char* __conn_type_table[16] = { "NONE", "Proprietary", "CRT", "DVI-I", "DVI-D", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown" }; if (!rinfo->bios_seg) return; offset = BIOS_IN16(rinfo->fp_bios_start + 0x50); if (offset == 0) { printk(KERN_WARNING "radeonfb: No connector info table detected\n"); return; } /* Don't do much more at this point but displaying the data if * DEBUG is enabled */ chips = BIOS_IN8(offset++) >> 4; pr_debug("%d chips in connector info\n", chips); for (i = 0; i < chips; i++) { tmp = BIOS_IN8(offset++); connectors = tmp & 0x0f; pr_debug(" - chip %d has %d connectors\n", tmp >> 4, connectors); for (conn = 0; ; conn++) { tmp = BIOS_IN16(offset); if (tmp == 0) break; offset += 2; type = (tmp >> 12) & 0x0f; pr_debug(" * connector %d of type %d (%s) : %04x\n", conn, type, __conn_type_table[type], tmp); } } } /* * Probe physical connection of a CRT. This code comes from XFree * as well and currently is only implemented for the CRT DAC, the * code for the TVDAC is commented out in XFree as "non working" */ static int radeon_crt_is_connected(struct radeonfb_info *rinfo, int is_crt_dac) { int connected = 0; /* the monitor either wasn't connected or it is a non-DDC CRT. * try to probe it */ if (is_crt_dac) { unsigned long ulOrigVCLK_ECP_CNTL; unsigned long ulOrigDAC_CNTL; unsigned long ulOrigDAC_EXT_CNTL; unsigned long ulOrigCRTC_EXT_CNTL; unsigned long ulData; unsigned long ulMask; ulOrigVCLK_ECP_CNTL = INPLL(VCLK_ECP_CNTL); ulData = ulOrigVCLK_ECP_CNTL; ulData &= ~(PIXCLK_ALWAYS_ONb | PIXCLK_DAC_ALWAYS_ONb); ulMask = ~(PIXCLK_ALWAYS_ONb | PIXCLK_DAC_ALWAYS_ONb); OUTPLLP(VCLK_ECP_CNTL, ulData, ulMask); ulOrigCRTC_EXT_CNTL = INREG(CRTC_EXT_CNTL); ulData = ulOrigCRTC_EXT_CNTL; ulData |= CRTC_CRT_ON; OUTREG(CRTC_EXT_CNTL, ulData); ulOrigDAC_EXT_CNTL = INREG(DAC_EXT_CNTL); ulData = ulOrigDAC_EXT_CNTL; ulData &= ~DAC_FORCE_DATA_MASK; ulData |= (DAC_FORCE_BLANK_OFF_EN |DAC_FORCE_DATA_EN |DAC_FORCE_DATA_SEL_MASK); if ((rinfo->family == CHIP_FAMILY_RV250) || (rinfo->family == CHIP_FAMILY_RV280)) ulData |= (0x01b6 << DAC_FORCE_DATA_SHIFT); else ulData |= (0x01ac << DAC_FORCE_DATA_SHIFT); OUTREG(DAC_EXT_CNTL, ulData); ulOrigDAC_CNTL = INREG(DAC_CNTL); ulData = ulOrigDAC_CNTL; ulData |= DAC_CMP_EN; ulData &= ~(DAC_RANGE_CNTL_MASK | DAC_PDWN); ulData |= 0x2; OUTREG(DAC_CNTL, ulData); mdelay(1); ulData = INREG(DAC_CNTL); connected = (DAC_CMP_OUTPUT & ulData) ? 1 : 0; ulData = ulOrigVCLK_ECP_CNTL; ulMask = 0xFFFFFFFFL; OUTPLLP(VCLK_ECP_CNTL, ulData, ulMask); OUTREG(DAC_CNTL, ulOrigDAC_CNTL ); OUTREG(DAC_EXT_CNTL, ulOrigDAC_EXT_CNTL ); OUTREG(CRTC_EXT_CNTL, ulOrigCRTC_EXT_CNTL); } return connected ? MT_CRT : MT_NONE; } /* * Parse the "monitor_layout" string if any. This code is mostly * copied from XFree's radeon driver */ static int radeon_parse_monitor_layout(struct radeonfb_info *rinfo, const char *monitor_layout) { char s1[5], s2[5]; int i = 0, second = 0; const char *s; if (!monitor_layout) return 0; s = monitor_layout; do { switch(*s) { case ',': s1[i] = '\0'; i = 0; second = 1; break; case ' ': case '\0': break; default: if (i > 4) break; if (second) s2[i] = *s; else s1[i] = *s; i++; } if (i > 4) i = 4; } while (*s++); if (second) s2[i] = 0; else { s1[i] = 0; s2[0] = 0; } if (strcmp(s1, "CRT") == 0) rinfo->mon1_type = MT_CRT; else if (strcmp(s1, "TMDS") == 0) rinfo->mon1_type = MT_DFP; else if (strcmp(s1, "LVDS") == 0) rinfo->mon1_type = MT_LCD; if (strcmp(s2, "CRT") == 0) rinfo->mon2_type = MT_CRT; else if (strcmp(s2, "TMDS") == 0) rinfo->mon2_type = MT_DFP; else if (strcmp(s2, "LVDS") == 0) rinfo->mon2_type = MT_LCD; return 1; } /* * Probe display on both primary and secondary card's connector (if any) * by various available techniques (i2c, OF device tree, BIOS, ...) and * try to retrieve EDID. The algorithm here comes from XFree's radeon * driver */ void radeon_probe_screens(struct radeonfb_info *rinfo, const char *monitor_layout, int ignore_edid) { #ifdef CONFIG_FB_RADEON_I2C int ddc_crt2_used = 0; #endif int tmp, i; radeon_parse_connector_info(rinfo); if (radeon_parse_monitor_layout(rinfo, monitor_layout)) { /* * If user specified a monitor_layout option, use it instead * of auto-detecting. Maybe we should only use this argument * on the first radeon card probed or provide a way to specify * a layout for each card ? */ pr_debug("Using specified monitor layout: %s", monitor_layout); #ifdef CONFIG_FB_RADEON_I2C if (!ignore_edid) { if (rinfo->mon1_type != MT_NONE) if (!radeon_probe_i2c_connector(rinfo, ddc_dvi, &rinfo->mon1_EDID)) { radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon1_EDID); ddc_crt2_used = 1; } if (rinfo->mon2_type != MT_NONE) if (!radeon_probe_i2c_connector(rinfo, ddc_vga, &rinfo->mon2_EDID) && !ddc_crt2_used) radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon2_EDID); } #endif /* CONFIG_FB_RADEON_I2C */ if (rinfo->mon1_type == MT_NONE) { if (rinfo->mon2_type != MT_NONE) { rinfo->mon1_type = rinfo->mon2_type; rinfo->mon1_EDID = rinfo->mon2_EDID; } else { rinfo->mon1_type = MT_CRT; printk(KERN_INFO "radeonfb: No valid monitor, assuming CRT on first port\n"); } rinfo->mon2_type = MT_NONE; rinfo->mon2_EDID = NULL; } } else { /* * Auto-detecting display type (well... trying to ...) */ pr_debug("Starting monitor auto detection...\n"); #if defined(DEBUG) && defined(CONFIG_FB_RADEON_I2C) { u8 *EDIDs[4] = { NULL, NULL, NULL, NULL }; int i; for (i = 0; i < 4; i++) radeon_probe_i2c_connector(rinfo, i + 1, &EDIDs[i]); } #endif /* DEBUG */ /* * Old single head cards */ if (!rinfo->has_CRTC2) { #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0, &rinfo->mon1_EDID); #endif /* CONFIG_PPC || CONFIG_SPARC */ #ifdef CONFIG_FB_RADEON_I2C if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_dvi, &rinfo->mon1_EDID); if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_vga, &rinfo->mon1_EDID); if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon1_EDID); #endif /* CONFIG_FB_RADEON_I2C */ if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = MT_CRT; goto bail; } /* * Check for cards with reversed DACs or TMDS controllers using BIOS */ if (rinfo->bios_seg && (tmp = BIOS_IN16(rinfo->fp_bios_start + 0x50))) { for (i = 1; i < 4; i++) { unsigned int tmp0; if (!BIOS_IN8(tmp + i*2) && i > 1) break; tmp0 = BIOS_IN16(tmp + i*2); if ((!(tmp0 & 0x01)) && (((tmp0 >> 8) & 0x0f) == ddc_dvi)) { rinfo->reversed_DAC = 1; printk(KERN_INFO "radeonfb: Reversed DACs detected\n"); } if ((((tmp0 >> 8) & 0x0f) == ddc_dvi) && ((tmp0 >> 4) & 0x01)) { rinfo->reversed_TMDS = 1; printk(KERN_INFO "radeonfb: Reversed TMDS detected\n"); } } } /* * Probe primary head (DVI or laptop internal panel) */ #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0, &rinfo->mon1_EDID); #endif /* CONFIG_PPC || CONFIG_SPARC */ #ifdef CONFIG_FB_RADEON_I2C if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_dvi, &rinfo->mon1_EDID); if (rinfo->mon1_type == MT_NONE) { rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon1_EDID); if (rinfo->mon1_type != MT_NONE) ddc_crt2_used = 1; } #endif /* CONFIG_FB_RADEON_I2C */ if (rinfo->mon1_type == MT_NONE && rinfo->is_mobility && ((rinfo->bios_seg && (INREG(BIOS_4_SCRATCH) & 4)) || (INREG(LVDS_GEN_CNTL) & LVDS_ON))) { rinfo->mon1_type = MT_LCD; printk("Non-DDC laptop panel detected\n"); } if (rinfo->mon1_type == MT_NONE) rinfo->mon1_type = radeon_crt_is_connected(rinfo, rinfo->reversed_DAC); /* * Probe secondary head (mostly VGA, can be DVI) */ #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) if (rinfo->mon2_type == MT_NONE) rinfo->mon2_type = radeon_probe_OF_head(rinfo, 1, &rinfo->mon2_EDID); #endif /* CONFIG_PPC || defined(CONFIG_SPARC) */ #ifdef CONFIG_FB_RADEON_I2C if (rinfo->mon2_type == MT_NONE) rinfo->mon2_type = radeon_probe_i2c_connector(rinfo, ddc_vga, &rinfo->mon2_EDID); if (rinfo->mon2_type == MT_NONE && !ddc_crt2_used) rinfo->mon2_type = radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon2_EDID); #endif /* CONFIG_FB_RADEON_I2C */ if (rinfo->mon2_type == MT_NONE) rinfo->mon2_type = radeon_crt_is_connected(rinfo, !rinfo->reversed_DAC); /* * If we only detected port 2, we swap them, if none detected, * assume CRT (maybe fallback to old BIOS_SCRATCH stuff ? or look * at FP registers ?) */ if (rinfo->mon1_type == MT_NONE) { if (rinfo->mon2_type != MT_NONE) { rinfo->mon1_type = rinfo->mon2_type; rinfo->mon1_EDID = rinfo->mon2_EDID; } else rinfo->mon1_type = MT_CRT; rinfo->mon2_type = MT_NONE; rinfo->mon2_EDID = NULL; } /* * Deal with reversed TMDS */ if (rinfo->reversed_TMDS) { /* Always keep internal TMDS as primary head */ if (rinfo->mon1_type == MT_DFP || rinfo->mon2_type == MT_DFP) { int tmp_type = rinfo->mon1_type; u8 *tmp_EDID = rinfo->mon1_EDID; rinfo->mon1_type = rinfo->mon2_type; rinfo->mon1_EDID = rinfo->mon2_EDID; rinfo->mon2_type = tmp_type; rinfo->mon2_EDID = tmp_EDID; if (rinfo->mon1_type == MT_CRT || rinfo->mon2_type == MT_CRT) rinfo->reversed_DAC ^= 1; } } } if (ignore_edid) { kfree(rinfo->mon1_EDID); rinfo->mon1_EDID = NULL; kfree(rinfo->mon2_EDID); rinfo->mon2_EDID = NULL; } bail: printk(KERN_INFO "radeonfb: Monitor 1 type %s found\n", radeon_get_mon_name(rinfo->mon1_type)); if (rinfo->mon1_EDID) printk(KERN_INFO "radeonfb: EDID probed\n"); if (!rinfo->has_CRTC2) return; printk(KERN_INFO "radeonfb: Monitor 2 type %s found\n", radeon_get_mon_name(rinfo->mon2_type)); if (rinfo->mon2_EDID) printk(KERN_INFO "radeonfb: EDID probed\n"); } /* * This function applies any arch/model/machine specific fixups * to the panel info. It may eventually alter EDID block as * well or whatever is specific to a given model and not probed * properly by the default code */ static void radeon_fixup_panel_info(struct radeonfb_info *rinfo) { #ifdef CONFIG_PPC /* * LCD Flat panels should use fixed dividers, we enfore that on * PPC only for now... */ if (!rinfo->panel_info.use_bios_dividers && rinfo->mon1_type == MT_LCD && rinfo->is_mobility) { int ppll_div_sel; u32 ppll_divn; ppll_div_sel = INREG8(CLOCK_CNTL_INDEX + 1) & 0x3; radeon_pll_errata_after_index(rinfo); ppll_divn = INPLL(PPLL_DIV_0 + ppll_div_sel); rinfo->panel_info.ref_divider = rinfo->pll.ref_div; rinfo->panel_info.fbk_divider = ppll_divn & 0x7ff; rinfo->panel_info.post_divider = (ppll_divn >> 16) & 0x7; rinfo->panel_info.use_bios_dividers = 1; printk(KERN_DEBUG "radeonfb: Using Firmware dividers 0x%08x " "from PPLL %d\n", rinfo->panel_info.fbk_divider | (rinfo->panel_info.post_divider << 16), ppll_div_sel); } #endif /* CONFIG_PPC */ } /* * Fill up panel infos from a mode definition, either returned by the EDID * or from the default mode when we can't do any better */ static void radeon_var_to_panel_info(struct radeonfb_info *rinfo, struct fb_var_screeninfo *var) { rinfo->panel_info.xres = var->xres; rinfo->panel_info.yres = var->yres; rinfo->panel_info.clock = 100000000 / var->pixclock; rinfo->panel_info.hOver_plus = var->right_margin; rinfo->panel_info.hSync_width = var->hsync_len; rinfo->panel_info.hblank = var->left_margin + (var->right_margin + var->hsync_len); rinfo->panel_info.vOver_plus = var->lower_margin; rinfo->panel_info.vSync_width = var->vsync_len; rinfo->panel_info.vblank = var->upper_margin + (var->lower_margin + var->vsync_len); rinfo->panel_info.hAct_high = (var->sync & FB_SYNC_HOR_HIGH_ACT) != 0; rinfo->panel_info.vAct_high = (var->sync & FB_SYNC_VERT_HIGH_ACT) != 0; rinfo->panel_info.valid = 1; /* We use a default of 200ms for the panel power delay, * I need to have a real schedule() instead of mdelay's in the panel code. * we might be possible to figure out a better power delay either from * MacOS OF tree or from the EDID block (proprietary extensions ?) */ rinfo->panel_info.pwr_delay = 200; } static void radeon_videomode_to_var(struct fb_var_screeninfo *var, const struct fb_videomode *mode) { var->xres = mode->xres; var->yres = mode->yres; var->xres_virtual = mode->xres; var->yres_virtual = mode->yres; var->xoffset = 0; var->yoffset = 0; var->pixclock = mode->pixclock; var->left_margin = mode->left_margin; var->right_margin = mode->right_margin; var->upper_margin = mode->upper_margin; var->lower_margin = mode->lower_margin; var->hsync_len = mode->hsync_len; var->vsync_len = mode->vsync_len; var->sync = mode->sync; var->vmode = mode->vmode; } #ifdef CONFIG_PPC_PSERIES static int is_powerblade(const char *model) { struct device_node *root; const char* cp; int len, l, rc = 0; root = of_find_node_by_path("/"); if (root && model) { l = strlen(model); cp = of_get_property(root, "model", &len); if (cp) rc = memcmp(model, cp, min(len, l)) == 0; of_node_put(root); } return rc; } #endif /* * Build the modedb for head 1 (head 2 will come later), check panel infos * from either BIOS or EDID, and pick up the default mode */ void radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option) { struct fb_info * info = rinfo->info; int has_default_mode = 0; /* * Fill default var first */ info->var = radeonfb_default_var; INIT_LIST_HEAD(&info->modelist); /* * First check out what BIOS has to say */ if (rinfo->mon1_type == MT_LCD) radeon_get_panel_info_BIOS(rinfo); /* * Parse EDID detailed timings and deduce panel infos if any. Right now * we only deal with first entry returned by parse_EDID, we may do better * some day... */ if (!rinfo->panel_info.use_bios_dividers && rinfo->mon1_type != MT_CRT && rinfo->mon1_EDID) { struct fb_var_screeninfo var; pr_debug("Parsing EDID data for panel info\n"); if (fb_parse_edid(rinfo->mon1_EDID, &var) == 0) { if (var.xres >= rinfo->panel_info.xres && var.yres >= rinfo->panel_info.yres) radeon_var_to_panel_info(rinfo, &var); } } /* * Do any additional platform/arch fixups to the panel infos */ radeon_fixup_panel_info(rinfo); /* * If we have some valid panel infos, we setup the default mode based on * those */ if (rinfo->mon1_type != MT_CRT && rinfo->panel_info.valid) { struct fb_var_screeninfo *var = &info->var; pr_debug("Setting up default mode based on panel info\n"); var->xres = rinfo->panel_info.xres; var->yres = rinfo->panel_info.yres; var->xres_virtual = rinfo->panel_info.xres; var->yres_virtual = rinfo->panel_info.yres; var->xoffset = var->yoffset = 0; var->bits_per_pixel = 8; var->pixclock = 100000000 / rinfo->panel_info.clock; var->left_margin = (rinfo->panel_info.hblank - rinfo->panel_info.hOver_plus - rinfo->panel_info.hSync_width); var->right_margin = rinfo->panel_info.hOver_plus; var->upper_margin = (rinfo->panel_info.vblank - rinfo->panel_info.vOver_plus - rinfo->panel_info.vSync_width); var->lower_margin = rinfo->panel_info.vOver_plus; var->hsync_len = rinfo->panel_info.hSync_width; var->vsync_len = rinfo->panel_info.vSync_width; var->sync = 0; if (rinfo->panel_info.hAct_high) var->sync |= FB_SYNC_HOR_HIGH_ACT; if (rinfo->panel_info.vAct_high) var->sync |= FB_SYNC_VERT_HIGH_ACT; var->vmode = 0; has_default_mode = 1; } /* * Now build modedb from EDID */ if (rinfo->mon1_EDID) { fb_edid_to_monspecs(rinfo->mon1_EDID, &info->monspecs); fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len, &info->modelist); rinfo->mon1_modedb = info->monspecs.modedb; rinfo->mon1_dbsize = info->monspecs.modedb_len; } /* * Finally, if we don't have panel infos we need to figure some (or * we try to read it from card), we try to pick a default mode * and create some panel infos. Whatever... */ if (rinfo->mon1_type != MT_CRT && !rinfo->panel_info.valid) { struct fb_videomode *modedb; int dbsize; char modename[32]; pr_debug("Guessing panel info...\n"); if (rinfo->panel_info.xres == 0 || rinfo->panel_info.yres == 0) { u32 tmp = INREG(FP_HORZ_STRETCH) & HORZ_PANEL_SIZE; rinfo->panel_info.xres = ((tmp >> HORZ_PANEL_SHIFT) + 1) * 8; tmp = INREG(FP_VERT_STRETCH) & VERT_PANEL_SIZE; rinfo->panel_info.yres = (tmp >> VERT_PANEL_SHIFT) + 1; } if (rinfo->panel_info.xres == 0 || rinfo->panel_info.yres == 0) { printk(KERN_WARNING "radeonfb: Can't find panel size, going back to CRT\n"); rinfo->mon1_type = MT_CRT; goto pickup_default; } printk(KERN_WARNING "radeonfb: Assuming panel size %dx%d\n", rinfo->panel_info.xres, rinfo->panel_info.yres); modedb = rinfo->mon1_modedb; dbsize = rinfo->mon1_dbsize; snprintf(modename, 31, "%dx%d", rinfo->panel_info.xres, rinfo->panel_info.yres); if (fb_find_mode(&info->var, info, modename, modedb, dbsize, NULL, 8) == 0) { printk(KERN_WARNING "radeonfb: Can't find mode for panel size, going back to CRT\n"); rinfo->mon1_type = MT_CRT; goto pickup_default; } has_default_mode = 1; radeon_var_to_panel_info(rinfo, &info->var); } pickup_default: /* * Apply passed-in mode option if any */ if (mode_option) { if (fb_find_mode(&info->var, info, mode_option, info->monspecs.modedb, info->monspecs.modedb_len, NULL, 8) != 0) has_default_mode = 1; } #ifdef CONFIG_PPC_PSERIES if (!has_default_mode && ( is_powerblade("IBM,8842") || /* JS20 */ is_powerblade("IBM,8844") || /* JS21 */ is_powerblade("IBM,7998") || /* JS12/JS21/JS22 */ is_powerblade("IBM,0792") || /* QS21 */ is_powerblade("IBM,0793") /* QS22 */ )) { printk("Falling back to 800x600 on JSxx hardware\n"); if (fb_find_mode(&info->var, info, "800x600@60", info->monspecs.modedb, info->monspecs.modedb_len, NULL, 8) != 0) has_default_mode = 1; } #endif /* * Still no mode, let's pick up a default from the db */ if (!has_default_mode && info->monspecs.modedb != NULL) { struct fb_monspecs *specs = &info->monspecs; struct fb_videomode *modedb = NULL; /* get preferred timing */ if (specs->misc & FB_MISC_1ST_DETAIL) { int i; for (i = 0; i < specs->modedb_len; i++) { if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { modedb = &specs->modedb[i]; break; } } } else { /* otherwise, get first mode in database */ modedb = &specs->modedb[0]; } if (modedb != NULL) { info->var.bits_per_pixel = 8; radeon_videomode_to_var(&info->var, modedb); has_default_mode = 1; } } if (1) { struct fb_videomode mode; /* Make sure that whatever mode got selected is actually in the * modelist or the kernel may die */ fb_var_to_videomode(&mode, &info->var); fb_add_videomode(&mode, &info->modelist); } } /* * The code below is used to pick up a mode in check_var and * set_var. It should be made generic */ /* * This is used when looking for modes. We assign a "distance" value * to a mode in the modedb depending how "close" it is from what we * are looking for. * Currently, we don't compare that much, we could do better but * the current fbcon doesn't quite mind ;) */ static int radeon_compare_modes(const struct fb_var_screeninfo *var, const struct fb_videomode *mode) { int distance = 0; distance = mode->yres - var->yres; distance += (mode->xres - var->xres)/2; return distance; } /* * This function is called by check_var, it gets the passed in mode parameter, and * outputs a valid mode matching the passed-in one as closely as possible. * We need something better ultimately. Things like fbcon basically pass us out * current mode with xres/yres hacked, while things like XFree will actually * produce a full timing that we should respect as much as possible. * * This is why I added the FB_ACTIVATE_FIND that is used by fbcon. Without this, * we do a simple spec match, that's all. With it, we actually look for a mode in * either our monitor modedb or the vesa one if none * */ int radeon_match_mode(struct radeonfb_info *rinfo, struct fb_var_screeninfo *dest, const struct fb_var_screeninfo *src) { const struct fb_videomode *db = vesa_modes; int i, dbsize = 34; int has_rmx, native_db = 0; int distance = INT_MAX; const struct fb_videomode *candidate = NULL; /* Start with a copy of the requested mode */ memcpy(dest, src, sizeof(struct fb_var_screeninfo)); /* Check if we have a modedb built from EDID */ if (rinfo->mon1_modedb) { db = rinfo->mon1_modedb; dbsize = rinfo->mon1_dbsize; native_db = 1; } /* Check if we have a scaler allowing any fancy mode */ has_rmx = rinfo->mon1_type == MT_LCD || rinfo->mon1_type == MT_DFP; /* If we have a scaler and are passed FB_ACTIVATE_TEST or * FB_ACTIVATE_NOW, just do basic checking and return if the * mode match */ if ((src->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST || (src->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { /* We don't have an RMX, validate timings. If we don't have * monspecs, we should be paranoid and not let use go above * 640x480-60, but I assume userland knows what it's doing here * (though I may be proven wrong...) */ if (has_rmx == 0 && rinfo->mon1_modedb) if (fb_validate_mode((struct fb_var_screeninfo *)src, rinfo->info)) return -EINVAL; return 0; } /* Now look for a mode in the database */ while (db) { for (i = 0; i < dbsize; i++) { int d; if (db[i].yres < src->yres) continue; if (db[i].xres < src->xres) continue; d = radeon_compare_modes(src, &db[i]); /* If the new mode is at least as good as the previous one, * then it's our new candidate */ if (d < distance) { candidate = &db[i]; distance = d; } } db = NULL; /* If we have a scaler, we allow any mode from the database */ if (native_db && has_rmx) { db = vesa_modes; dbsize = 34; native_db = 0; } } /* If we have found a match, return it */ if (candidate != NULL) { radeon_videomode_to_var(dest, candidate); return 0; } /* If we haven't and don't have a scaler, fail */ if (!has_rmx) return -EINVAL; return 0; }
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