1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c
new file mode 100644
index 000000000000..0f7d1ec4d37e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c
@@ -0,0 +1,99 @@
+/*
+ * 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 "nv50.h"
+#include "outp.h"
+
+#include <core/client.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+int
+nv50_dac_power(NV50_DISP_MTHD_V1)
+{
+	const u32 doff = outp->or * 0x800;
+	union {
+		struct nv50_disp_dac_pwr_v0 v0;
+	} *args = data;
+	u32 stat;
+	int ret;
+
+	nv_ioctl(object, "disp dac pwr size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nv_ioctl(object, "disp dac pwr vers %d state %d data %d "
+				 "vsync %d hsync %d\n",
+			 args->v0.version, args->v0.state, args->v0.data,
+			 args->v0.vsync, args->v0.hsync);
+		stat  = 0x00000040 * !args->v0.state;
+		stat |= 0x00000010 * !args->v0.data;
+		stat |= 0x00000004 * !args->v0.vsync;
+		stat |= 0x00000001 * !args->v0.hsync;
+	} else
+		return ret;
+
+	nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
+	nv_mask(priv, 0x61a004 + doff, 0xc000007f, 0x80000000 | stat);
+	nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
+	return 0;
+}
+
+int
+nv50_dac_sense(NV50_DISP_MTHD_V1)
+{
+	union {
+		struct nv50_disp_dac_load_v0 v0;
+	} *args = data;
+	const u32 doff = outp->or * 0x800;
+	u32 loadval;
+	int ret;
+
+	nv_ioctl(object, "disp dac load size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nv_ioctl(object, "disp dac load vers %d data %08x\n",
+			 args->v0.version, args->v0.data);
+		if (args->v0.data & 0xfff00000)
+			return -EINVAL;
+		loadval = args->v0.data;
+	} else
+		return ret;
+
+	nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000);
+	nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
+
+	nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
+	mdelay(9);
+	udelay(500);
+	loadval = nv_mask(priv, 0x61a00c + doff, 0xffffffff, 0x00000000);
+
+	nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000);
+	nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
+
+	nv_debug(priv, "DAC%d sense: 0x%08x\n", outp->or, loadval);
+	if (!(loadval & 0x80000000))
+		return -ETIMEDOUT;
+
+	args->v0.load = (loadval & 0x38000000) >> 27;
+	return 0;
+}