diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c new file mode 100644 index 000000000..0d1b81fe1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c @@ -0,0 +1,51 @@ +/* + * 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 "ior.h" + +void +gt215_hda_eld(struct nvkm_ior *ior, int head, u8 *data, u8 size) +{ + struct nvkm_device *device = ior->disp->engine.subdev.device; + const u32 soff = ior->id * 0x800; + int i; + + for (i = 0; i < size; i++) + nvkm_wr32(device, 0x61c440 + soff, (i << 8) | data[i]); + for (; i < 0x60; i++) + nvkm_wr32(device, 0x61c440 + soff, (i << 8)); + nvkm_mask(device, 0x61c448 + soff, 0x80000002, 0x80000002); +} + +void +gt215_hda_hpd(struct nvkm_ior *ior, int head, bool present) +{ + struct nvkm_device *device = ior->disp->engine.subdev.device; + u32 data = 0x80000000; + u32 mask = 0x80000001; + if (present) + data |= 0x00000001; + else + mask |= 0x00000002; + nvkm_mask(device, 0x61c448 + ior->id * 0x800, mask, data); +} |