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Diffstat (limited to 'libjava/java/util/HashSet.java')

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// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2012 The Chromium OS Authors. * * (C) Copyright 2010 * Petr Stetiar <ynezz@true.cz> * * Contains stolen code from ddcprobe project which is: * Copyright (C) Nalin Dahyabhai <bigfun@pobox.com> */ #include <common.h> #include <edid.h> #include <errno.h> #include <fdtdec.h> #include <linux/ctype.h> #include <linux/string.h> int edid_check_info(struct edid1_info *edid_info) { if ((edid_info == NULL) || (edid_info->version == 0)) return -1; if (memcmp(edid_info->header, "\x0\xff\xff\xff\xff\xff\xff\x0", 8)) return -1; if (edid_info->version == 0xff && edid_info->revision == 0xff) return -1; return 0; } int edid_check_checksum(u8 *edid_block) { u8 checksum = 0; int i; for (i = 0; i < 128; i++) checksum += edid_block[i]; return (checksum == 0) ? 0 : -EINVAL; } int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin, unsigned int *hmax, unsigned int *vmin, unsigned int *vmax) { int i; struct edid_monitor_descriptor *monitor; *hmin = *hmax = *vmin = *vmax = 0; if (edid_check_info(edid)) return -1; for (i = 0; i < ARRAY_SIZE(edid->monitor_details.descriptor); i++) { monitor = &edid->monitor_details.descriptor[i]; if (monitor->type == EDID_MONITOR_DESCRIPTOR_RANGE) { *hmin = monitor->data.range_data.horizontal_min; *hmax = monitor->data.range_data.horizontal_max; *vmin = monitor->data.range_data.vertical_min; *vmax = monitor->data.range_data.vertical_max; return 0; } } return -1; } /* Set all parts of a timing entry to the same value */ static void set_entry(struct timing_entry *entry, u32 value) { entry->min = value; entry->typ = value; entry->max = value; } /** * decode_timing() - Decoding an 18-byte detailed timing record * * @buf: Pointer to EDID detailed timing record * @timing: Place to put timing */ static void decode_timing(u8 *buf, struct display_timing *timing) { uint x_mm, y_mm; unsigned int ha, hbl, hso, hspw, hborder; unsigned int va, vbl, vso, vspw, vborder; struct edid_detailed_timing *t = (struct edid_detailed_timing *)buf; /* Edid contains pixel clock in terms of 10KHz */ set_entry(&timing->pixelclock, (buf[0] + (buf[1] << 8)) * 10000); x_mm = (buf[12] + ((buf[14] & 0xf0) << 4)); y_mm = (buf[13] + ((buf[14] & 0x0f) << 8)); ha = (buf[2] + ((buf[4] & 0xf0) << 4)); hbl = (buf[3] + ((buf[4] & 0x0f) << 8)); hso = (buf[8] + ((buf[11] & 0xc0) << 2)); hspw = (buf[9] + ((buf[11] & 0x30) << 4)); hborder = buf[15]; va = (buf[5] + ((buf[7] & 0xf0) << 4)); vbl = (buf[6] + ((buf[7] & 0x0f) << 8)); vso = ((buf[10] >> 4) + ((buf[11] & 0x0c) << 2)); vspw = ((buf[10] & 0x0f) + ((buf[11] & 0x03) << 4)); vborder = buf[16]; set_entry(&timing->hactive, ha); set_entry(&timing->hfront_porch, hso); set_entry(&timing->hback_porch, hbl - hso - hspw); set_entry(&timing->hsync_len, hspw); set_entry(&timing->vactive, va); set_entry(&timing->vfront_porch, vso); set_entry(&timing->vback_porch, vbl - vso - vspw); set_entry(&timing->vsync_len, vspw); timing->flags = 0; if (EDID_DETAILED_TIMING_FLAG_HSYNC_POLARITY(*t)) timing->flags |= DISPLAY_FLAGS_HSYNC_HIGH; else timing->flags |= DISPLAY_FLAGS_HSYNC_LOW; if (EDID_DETAILED_TIMING_FLAG_VSYNC_POLARITY(*t)) timing->flags |= DISPLAY_FLAGS_VSYNC_HIGH; else timing->flags |= DISPLAY_FLAGS_VSYNC_LOW; if (EDID_DETAILED_TIMING_FLAG_INTERLACED(*t)) timing->flags = DISPLAY_FLAGS_INTERLACED; debug("Detailed mode clock %u Hz, %d mm x %d mm\n" " %04x %04x %04x %04x hborder %x\n" " %04x %04x %04x %04x vborder %x\n", timing->pixelclock.typ, x_mm, y_mm, ha, ha + hso, ha + hso + hspw, ha + hbl, hborder, va, va + vso, va + vso + vspw, va + vbl, vborder); } /** * Check if HDMI vendor specific data block is present in CEA block * @param info CEA extension block * @return true if block is found */ static bool cea_is_hdmi_vsdb_present(struct edid_cea861_info *info) { u8 end, i = 0; /* check for end of data block */ end = info->dtd_offset; if (end == 0) end = sizeof(info->data); if (end < 4 || end > sizeof(info->data)) return false; end -= 4; while (i < end) { /* Look for vendor specific data block of appropriate size */ if ((EDID_CEA861_DB_TYPE(*info, i) == EDID_CEA861_DB_VENDOR) && (EDID_CEA861_DB_LEN(*info, i) >= 5)) { u8 *db = &info->data[i + 1]; u32 oui = db[0] | (db[1] << 8) | (db[2] << 16); if (oui == HDMI_IEEE_OUI) return true; } i += EDID_CEA861_DB_LEN(*info, i) + 1; } return false; } int edid_get_timing(u8 *buf, int buf_size, struct display_timing *timing, int *panel_bits_per_colourp) { struct edid1_info *edid = (struct edid1_info *)buf; bool timing_done; int i; if (buf_size < sizeof(*edid) || edid_check_info(edid)) { debug("%s: Invalid buffer\n", __func__); return -EINVAL; } if (!EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(*edid)) { debug("%s: No preferred timing\n", __func__); return -ENOENT; } /* Look for detailed timing */ timing_done = false; for (i = 0; i < 4; i++) { struct edid_monitor_descriptor *desc; desc = &edid->monitor_details.descriptor[i]; if (desc->zero_flag_1 != 0) { decode_timing((u8 *)desc, timing); timing_done = true; break; } } if (!timing_done) return -EINVAL; if (!EDID1_INFO_VIDEO_INPUT_DIGITAL(*edid)) {


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