1052 lines
30 KiB
C
1052 lines
30 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include "radeonfb.h"
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#include <linux/slab.h>
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#include "../edid.h"
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static const struct fb_var_screeninfo radeonfb_default_var = {
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.xres = 640,
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.yres = 480,
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.xres_virtual = 640,
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.yres_virtual = 480,
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.bits_per_pixel = 8,
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.red = { .length = 8 },
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.green = { .length = 8 },
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.blue = { .length = 8 },
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.activate = FB_ACTIVATE_NOW,
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.height = -1,
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.width = -1,
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.pixclock = 39721,
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.left_margin = 40,
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.right_margin = 24,
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.upper_margin = 32,
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.lower_margin = 11,
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.hsync_len = 96,
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.vsync_len = 2,
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.vmode = FB_VMODE_NONINTERLACED
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};
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static char *radeon_get_mon_name(int type)
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{
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char *pret = NULL;
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switch (type) {
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case MT_NONE:
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pret = "no";
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break;
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case MT_CRT:
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pret = "CRT";
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break;
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case MT_DFP:
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pret = "DFP";
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break;
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case MT_LCD:
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pret = "LCD";
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break;
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case MT_CTV:
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pret = "CTV";
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break;
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case MT_STV:
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pret = "STV";
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break;
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}
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return pret;
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}
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#if defined(CONFIG_PPC) || defined(CONFIG_SPARC)
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/*
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* Try to find monitor informations & EDID data out of the Open Firmware
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* device-tree. This also contains some "hacks" to work around a few machine
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* models with broken OF probing by hard-coding known EDIDs for some Mac
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* laptops internal LVDS panel. (XXX: not done yet)
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*/
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static int radeon_parse_montype_prop(struct device_node *dp, u8 **out_EDID,
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int hdno)
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{
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static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID",
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"EDID1", "EDID2", NULL };
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const u8 *pedid = NULL;
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const u8 *pmt = NULL;
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u8 *tmp;
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int i, mt = MT_NONE;
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pr_debug("analyzing OF properties...\n");
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pmt = of_get_property(dp, "display-type", NULL);
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if (!pmt)
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return MT_NONE;
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pr_debug("display-type: %s\n", pmt);
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/* OF says "LCD" for DFP as well, we discriminate from the caller of this
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* function
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*/
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if (!strcmp(pmt, "LCD") || !strcmp(pmt, "DFP"))
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mt = MT_DFP;
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else if (!strcmp(pmt, "CRT"))
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mt = MT_CRT;
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else {
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if (strcmp(pmt, "NONE") != 0)
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printk(KERN_WARNING "radeonfb: Unknown OF display-type: %s\n",
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pmt);
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return MT_NONE;
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}
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for (i = 0; propnames[i] != NULL; ++i) {
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pedid = of_get_property(dp, propnames[i], NULL);
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if (pedid != NULL)
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break;
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}
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/* We didn't find the EDID in the leaf node, some cards will actually
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* put EDID1/EDID2 in the parent, look for these (typically M6 tipb).
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* single-head cards have hdno == -1 and skip this step
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*/
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if (pedid == NULL && dp->parent && (hdno != -1))
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pedid = of_get_property(dp->parent,
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(hdno == 0) ? "EDID1" : "EDID2", NULL);
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if (pedid == NULL && dp->parent && (hdno == 0))
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pedid = of_get_property(dp->parent, "EDID", NULL);
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if (pedid == NULL)
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return mt;
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tmp = kmemdup(pedid, EDID_LENGTH, GFP_KERNEL);
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if (!tmp)
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return mt;
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*out_EDID = tmp;
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return mt;
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}
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static int radeon_probe_OF_head(struct radeonfb_info *rinfo, int head_no,
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u8 **out_EDID)
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{
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struct device_node *dp;
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pr_debug("radeon_probe_OF_head\n");
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dp = rinfo->of_node;
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while (dp == NULL)
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return MT_NONE;
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if (rinfo->has_CRTC2) {
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const char *pname;
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int len, second = 0;
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dp = dp->child;
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do {
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if (!dp)
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return MT_NONE;
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pname = of_get_property(dp, "name", NULL);
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if (!pname)
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return MT_NONE;
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len = strlen(pname);
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pr_debug("head: %s (letter: %c, head_no: %d)\n",
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pname, pname[len-1], head_no);
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if (pname[len-1] == 'A' && head_no == 0) {
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int mt = radeon_parse_montype_prop(dp, out_EDID, 0);
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/* Maybe check for LVDS_GEN_CNTL here ? I need to check out
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* what OF does when booting with lid closed
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*/
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if (mt == MT_DFP && rinfo->is_mobility)
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mt = MT_LCD;
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return mt;
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} else if (pname[len-1] == 'B' && head_no == 1)
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return radeon_parse_montype_prop(dp, out_EDID, 1);
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second = 1;
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dp = dp->sibling;
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} while(!second);
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} else {
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if (head_no > 0)
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return MT_NONE;
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return radeon_parse_montype_prop(dp, out_EDID, -1);
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}
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return MT_NONE;
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}
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#endif /* CONFIG_PPC || CONFIG_SPARC */
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static int radeon_get_panel_info_BIOS(struct radeonfb_info *rinfo)
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{
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unsigned long tmp, tmp0;
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char stmp[30];
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int i;
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if (!rinfo->bios_seg)
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return 0;
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if (!(tmp = BIOS_IN16(rinfo->fp_bios_start + 0x40))) {
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printk(KERN_ERR "radeonfb: Failed to detect DFP panel info using BIOS\n");
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rinfo->panel_info.pwr_delay = 200;
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return 0;
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}
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for(i=0; i<24; i++)
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stmp[i] = BIOS_IN8(tmp+i+1);
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stmp[24] = 0;
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printk("radeonfb: panel ID string: %s\n", stmp);
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rinfo->panel_info.xres = BIOS_IN16(tmp + 25);
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rinfo->panel_info.yres = BIOS_IN16(tmp + 27);
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printk("radeonfb: detected LVDS panel size from BIOS: %dx%d\n",
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rinfo->panel_info.xres, rinfo->panel_info.yres);
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rinfo->panel_info.pwr_delay = BIOS_IN16(tmp + 44);
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pr_debug("BIOS provided panel power delay: %d\n", rinfo->panel_info.pwr_delay);
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if (rinfo->panel_info.pwr_delay > 2000 || rinfo->panel_info.pwr_delay <= 0)
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rinfo->panel_info.pwr_delay = 2000;
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/*
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* Some panels only work properly with some divider combinations
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*/
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rinfo->panel_info.ref_divider = BIOS_IN16(tmp + 46);
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rinfo->panel_info.post_divider = BIOS_IN8(tmp + 48);
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rinfo->panel_info.fbk_divider = BIOS_IN16(tmp + 49);
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if (rinfo->panel_info.ref_divider != 0 &&
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rinfo->panel_info.fbk_divider > 3) {
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rinfo->panel_info.use_bios_dividers = 1;
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printk(KERN_INFO "radeondb: BIOS provided dividers will be used\n");
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pr_debug("ref_divider = %x\n", rinfo->panel_info.ref_divider);
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pr_debug("post_divider = %x\n", rinfo->panel_info.post_divider);
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pr_debug("fbk_divider = %x\n", rinfo->panel_info.fbk_divider);
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}
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pr_debug("Scanning BIOS table ...\n");
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for(i=0; i<32; i++) {
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tmp0 = BIOS_IN16(tmp+64+i*2);
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if (tmp0 == 0)
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break;
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pr_debug(" %d x %d\n", BIOS_IN16(tmp0), BIOS_IN16(tmp0+2));
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if ((BIOS_IN16(tmp0) == rinfo->panel_info.xres) &&
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(BIOS_IN16(tmp0+2) == rinfo->panel_info.yres)) {
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rinfo->panel_info.hblank = (BIOS_IN16(tmp0+17) - BIOS_IN16(tmp0+19)) * 8;
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rinfo->panel_info.hOver_plus = ((BIOS_IN16(tmp0+21) -
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BIOS_IN16(tmp0+19) -1) * 8) & 0x7fff;
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rinfo->panel_info.hSync_width = BIOS_IN8(tmp0+23) * 8;
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rinfo->panel_info.vblank = BIOS_IN16(tmp0+24) - BIOS_IN16(tmp0+26);
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rinfo->panel_info.vOver_plus = (BIOS_IN16(tmp0+28) & 0x7ff) - BIOS_IN16(tmp0+26);
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rinfo->panel_info.vSync_width = (BIOS_IN16(tmp0+28) & 0xf800) >> 11;
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rinfo->panel_info.clock = BIOS_IN16(tmp0+9);
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/* Assume high active syncs for now until ATI tells me more... maybe we
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* can probe register values here ?
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*/
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rinfo->panel_info.hAct_high = 1;
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rinfo->panel_info.vAct_high = 1;
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/* Mark panel infos valid */
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rinfo->panel_info.valid = 1;
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pr_debug("Found panel in BIOS table:\n");
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pr_debug(" hblank: %d\n", rinfo->panel_info.hblank);
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pr_debug(" hOver_plus: %d\n", rinfo->panel_info.hOver_plus);
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pr_debug(" hSync_width: %d\n", rinfo->panel_info.hSync_width);
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pr_debug(" vblank: %d\n", rinfo->panel_info.vblank);
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pr_debug(" vOver_plus: %d\n", rinfo->panel_info.vOver_plus);
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pr_debug(" vSync_width: %d\n", rinfo->panel_info.vSync_width);
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pr_debug(" clock: %d\n", rinfo->panel_info.clock);
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return 1;
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}
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}
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pr_debug("Didn't find panel in BIOS table !\n");
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return 0;
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}
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/* Try to extract the connector informations from the BIOS. This
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* doesn't quite work yet, but it's output is still useful for
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* debugging
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*/
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static void radeon_parse_connector_info(struct radeonfb_info *rinfo)
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{
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int offset, chips, connectors, tmp, i, conn, type;
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static char* __conn_type_table[16] = {
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"NONE", "Proprietary", "CRT", "DVI-I", "DVI-D", "Unknown", "Unknown",
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"Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown",
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"Unknown", "Unknown", "Unknown"
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};
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if (!rinfo->bios_seg)
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return;
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offset = BIOS_IN16(rinfo->fp_bios_start + 0x50);
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if (offset == 0) {
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printk(KERN_WARNING "radeonfb: No connector info table detected\n");
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return;
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}
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/* Don't do much more at this point but displaying the data if
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* DEBUG is enabled
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*/
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chips = BIOS_IN8(offset++) >> 4;
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pr_debug("%d chips in connector info\n", chips);
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for (i = 0; i < chips; i++) {
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tmp = BIOS_IN8(offset++);
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connectors = tmp & 0x0f;
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pr_debug(" - chip %d has %d connectors\n", tmp >> 4, connectors);
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for (conn = 0; ; conn++) {
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tmp = BIOS_IN16(offset);
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if (tmp == 0)
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break;
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offset += 2;
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type = (tmp >> 12) & 0x0f;
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pr_debug(" * connector %d of type %d (%s) : %04x\n",
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conn, type, __conn_type_table[type], tmp);
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}
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}
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}
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/*
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* Probe physical connection of a CRT. This code comes from XFree
|
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* as well and currently is only implemented for the CRT DAC, the
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* code for the TVDAC is commented out in XFree as "non working"
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*/
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static int radeon_crt_is_connected(struct radeonfb_info *rinfo, int is_crt_dac)
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{
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int connected = 0;
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/* the monitor either wasn't connected or it is a non-DDC CRT.
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* try to probe it
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*/
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if (is_crt_dac) {
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unsigned long ulOrigVCLK_ECP_CNTL;
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unsigned long ulOrigDAC_CNTL;
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unsigned long ulOrigDAC_EXT_CNTL;
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unsigned long ulOrigCRTC_EXT_CNTL;
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unsigned long ulData;
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unsigned long ulMask;
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ulOrigVCLK_ECP_CNTL = INPLL(VCLK_ECP_CNTL);
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ulData = ulOrigVCLK_ECP_CNTL;
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ulData &= ~(PIXCLK_ALWAYS_ONb
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| PIXCLK_DAC_ALWAYS_ONb);
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ulMask = ~(PIXCLK_ALWAYS_ONb
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| PIXCLK_DAC_ALWAYS_ONb);
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OUTPLLP(VCLK_ECP_CNTL, ulData, ulMask);
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ulOrigCRTC_EXT_CNTL = INREG(CRTC_EXT_CNTL);
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ulData = ulOrigCRTC_EXT_CNTL;
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ulData |= CRTC_CRT_ON;
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OUTREG(CRTC_EXT_CNTL, ulData);
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ulOrigDAC_EXT_CNTL = INREG(DAC_EXT_CNTL);
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ulData = ulOrigDAC_EXT_CNTL;
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ulData &= ~DAC_FORCE_DATA_MASK;
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||
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ulData |= (DAC_FORCE_BLANK_OFF_EN
|
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|
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|DAC_FORCE_DATA_EN
|
||
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|DAC_FORCE_DATA_SEL_MASK);
|
||
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if ((rinfo->family == CHIP_FAMILY_RV250) ||
|
||
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(rinfo->family == CHIP_FAMILY_RV280))
|
||
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ulData |= (0x01b6 << DAC_FORCE_DATA_SHIFT);
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||
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else
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||
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ulData |= (0x01ac << DAC_FORCE_DATA_SHIFT);
|
||
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|
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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;
|
||
|
|
}
|