mirror of https://gitee.com/openkylin/linux.git
Merge branch 'fbdev/edid' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/fbdev-2.6 into common/fbdev-edid
This commit is contained in:
commit
d8d776f3fb
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@ -973,6 +973,90 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
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DPRINTK("========================================\n");
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}
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/**
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* fb_edid_add_monspecs() - add monitor video modes from E-EDID data
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* @edid: 128 byte array with an E-EDID block
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* @spacs: monitor specs to be extended
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*/
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void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs)
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{
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unsigned char *block;
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struct fb_videomode *m;
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int num = 0, i;
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u8 svd[64], edt[(128 - 4) / DETAILED_TIMING_DESCRIPTION_SIZE];
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u8 pos = 4, svd_n = 0;
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if (!edid)
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return;
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if (!edid_checksum(edid))
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return;
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if (edid[0] != 0x2 ||
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edid[2] < 4 || edid[2] > 128 - DETAILED_TIMING_DESCRIPTION_SIZE)
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return;
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DPRINTK(" Short Video Descriptors\n");
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while (pos < edid[2]) {
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u8 len = edid[pos] & 0x1f, type = (edid[pos] >> 5) & 7;
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pr_debug("Data block %u of %u bytes\n", type, len);
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if (type == 2)
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for (i = pos; i < pos + len; i++) {
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u8 idx = edid[pos + i] & 0x7f;
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svd[svd_n++] = idx;
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pr_debug("N%sative mode #%d\n",
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edid[pos + i] & 0x80 ? "" : "on-n", idx);
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}
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pos += len + 1;
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}
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block = edid + edid[2];
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DPRINTK(" Extended Detailed Timings\n");
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for (i = 0; i < (128 - edid[2]) / DETAILED_TIMING_DESCRIPTION_SIZE;
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i++, block += DETAILED_TIMING_DESCRIPTION_SIZE)
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if (PIXEL_CLOCK)
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edt[num++] = block - edid;
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/* Yikes, EDID data is totally useless */
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if (!(num + svd_n))
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return;
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m = kzalloc((specs->modedb_len + num + svd_n) *
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sizeof(struct fb_videomode), GFP_KERNEL);
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if (!m)
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return;
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memcpy(m, specs->modedb, specs->modedb_len * sizeof(struct fb_videomode));
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for (i = specs->modedb_len; i < specs->modedb_len + num; i++) {
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get_detailed_timing(edid + edt[i - specs->modedb_len], &m[i]);
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if (i == specs->modedb_len)
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m[i].flag |= FB_MODE_IS_FIRST;
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pr_debug("Adding %ux%u@%u\n", m[i].xres, m[i].yres, m[i].refresh);
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}
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for (i = specs->modedb_len + num; i < specs->modedb_len + num + svd_n; i++) {
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int idx = svd[i - specs->modedb_len - num];
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if (!idx || idx > 63) {
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pr_warning("Reserved SVD code %d\n", idx);
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} else if (idx > ARRAY_SIZE(cea_modes) || !cea_modes[idx].xres) {
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pr_warning("Unimplemented SVD code %d\n", idx);
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} else {
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memcpy(&m[i], cea_modes + idx, sizeof(m[i]));
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pr_debug("Adding SVD #%d: %ux%u@%u\n", idx,
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m[i].xres, m[i].yres, m[i].refresh);
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}
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}
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kfree(specs->modedb);
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specs->modedb = m;
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specs->modedb_len = specs->modedb_len + num + svd_n;
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}
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/*
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* VESA Generalized Timing Formula (GTF)
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*/
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@ -1289,6 +1373,9 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
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{
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specs = NULL;
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}
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void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs)
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{
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}
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void fb_destroy_modedb(struct fb_videomode *modedb)
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{
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}
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@ -1396,6 +1483,7 @@ EXPORT_SYMBOL(fb_firmware_edid);
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EXPORT_SYMBOL(fb_parse_edid);
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EXPORT_SYMBOL(fb_edid_to_monspecs);
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EXPORT_SYMBOL(fb_edid_add_monspecs);
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EXPORT_SYMBOL(fb_get_mode);
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EXPORT_SYMBOL(fb_validate_mode);
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EXPORT_SYMBOL(fb_destroy_modedb);
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@ -278,6 +278,49 @@ static const struct fb_videomode modedb[] = {
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};
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#ifdef CONFIG_FB_MODE_HELPERS
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const struct fb_videomode cea_modes[64] = {
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/* #1: 640x480p@59.94/60Hz */
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[1] = {
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NULL, 60, 640, 480, 39722, 48, 16, 33, 10, 96, 2, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #3: 720x480p@59.94/60Hz */
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[3] = {
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NULL, 60, 720, 480, 37037, 60, 16, 30, 9, 62, 6, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #5: 1920x1080i@59.94/60Hz */
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[5] = {
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NULL, 60, 1920, 1080, 13763, 148, 88, 15, 2, 44, 5, 0, FB_VMODE_INTERLACED, 0,
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},
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/* #7: 720(1440)x480iH@59.94/60Hz */
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[7] = {
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NULL, 60, 1440, 480, 18554/*37108*/, 114, 38, 15, 4, 124, 3, 0, FB_VMODE_INTERLACED, 0,
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},
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/* #9: 720(1440)x240pH@59.94/60Hz */
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[9] = {
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NULL, 60, 1440, 240, 18554, 114, 38, 16, 4, 124, 3, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #18: 720x576pH@50Hz */
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[18] = {
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NULL, 50, 720, 576, 37037, 68, 12, 39, 5, 64, 5, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #19: 1280x720p@50Hz */
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[19] = {
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NULL, 50, 1280, 720, 13468, 220, 440, 20, 5, 40, 5, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #20: 1920x1080i@50Hz */
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[20] = {
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NULL, 50, 1920, 1080, 13480, 148, 528, 15, 5, 528, 5, 0, FB_VMODE_INTERLACED, 0,
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},
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/* #32: 1920x1080p@23.98/24Hz */
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[32] = {
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NULL, 24, 1920, 1080, 13468, 148, 638, 36, 4, 44, 5, 0, FB_VMODE_NONINTERLACED, 0,
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},
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/* #35: (2880)x480p4x@59.94/60Hz */
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[35] = {
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NULL, 50, 2880, 480, 11100, 240, 64, 30, 9, 248, 6, 0, FB_VMODE_NONINTERLACED, 0,
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},
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};
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const struct fb_videomode vesa_modes[] = {
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/* 0 640x350-85 VESA */
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{ NULL, 85, 640, 350, 31746, 96, 32, 60, 32, 64, 3,
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@ -1092,6 +1092,8 @@ extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
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extern const unsigned char *fb_firmware_edid(struct device *device);
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extern void fb_edid_to_monspecs(unsigned char *edid,
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struct fb_monspecs *specs);
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extern void fb_edid_add_monspecs(unsigned char *edid,
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struct fb_monspecs *specs);
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extern void fb_destroy_modedb(struct fb_videomode *modedb);
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extern int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb);
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extern unsigned char *fb_ddc_read(struct i2c_adapter *adapter);
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@ -1149,6 +1151,7 @@ struct fb_videomode {
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extern const char *fb_mode_option;
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extern const struct fb_videomode vesa_modes[];
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extern const struct fb_videomode cea_modes[64];
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struct fb_modelist {
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struct list_head list;
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