cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bios/conn.c

/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>
#include <subdev/bios/conn.h>


u32 nvbios_connTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { u32 dcb = dcb_table(bios, ver, hdr, cnt, len); if (dcb && *ver >= 0x30 && *hdr >= 0x16) { u32 data = nvbios_rd16(bios, dcb + 0x14); if (data) { *ver = nvbios_rd08(bios, data + 0); *hdr = nvbios_rd08(bios, data + 1); *cnt = nvbios_rd08(bios, data + 2); *len = nvbios_rd08(bios, data + 3); return data; } } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs130100.00%4100.00%
Total130100.00%4100.00%


u32 nvbios_connTp(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_connT *info) { u32 data = nvbios_connTe(bios, ver, hdr, cnt, len); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x30: case 0x40: return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs85100.00%2100.00%
Total85100.00%2100.00%


u32 nvbios_connEe(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len) { u8 hdr, cnt; u32 data = nvbios_connTe(bios, ver, &hdr, &cnt, len); if (data && idx < cnt) return data + hdr + (idx * *len); return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs67100.00%3100.00%
Total67100.00%3100.00%


u32 nvbios_connEp(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, struct nvbios_connE *info) { u32 data = nvbios_connEe(bios, idx, ver, len); memset(info, 0x00, sizeof(*info)); switch (!!data * *ver) { case 0x30: case 0x40: info->type = nvbios_rd08(bios, data + 0x00); info->location = nvbios_rd08(bios, data + 0x01) & 0x0f; info->hpd = (nvbios_rd08(bios, data + 0x01) & 0x30) >> 4; info->dp = (nvbios_rd08(bios, data + 0x01) & 0xc0) >> 6; if (*len < 4) return data; info->hpd |= (nvbios_rd08(bios, data + 0x02) & 0x03) << 2; info->dp |= nvbios_rd08(bios, data + 0x02) & 0x0c; info->di = (nvbios_rd08(bios, data + 0x02) & 0xf0) >> 4; info->hpd |= (nvbios_rd08(bios, data + 0x03) & 0x07) << 4; info->sr = (nvbios_rd08(bios, data + 0x03) & 0x08) >> 3; info->lcdid = (nvbios_rd08(bios, data + 0x03) & 0x70) >> 4; return data; default: break; } return 0x00000000; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs264100.00%4100.00%
Total264100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs55399.46%480.00%
Marcin Ślusarz30.54%120.00%
Total556100.00%5100.00%
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