1 files changed, 121 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 000000000..558012db3
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c
@@ -0,0 +1,121 @@
+/*
+ * 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"
+
+#include <subdev/timer.h>
+
+static void
+nv50_dac_clock(struct nvkm_ior *dac)
+{
+	struct nvkm_device *device = dac->disp->engine.subdev.device;
+	const u32 doff = nv50_ior_base(dac);
+	nvkm_mask(device, 0x614280 + doff, 0x07070707, 0x00000000);
+}
+
+int
+nv50_dac_sense(struct nvkm_ior *dac, u32 loadval)
+{
+	struct nvkm_device *device = dac->disp->engine.subdev.device;
+	const u32 doff = nv50_ior_base(dac);
+
+	dac->func->power(dac, false, true, false, false, false);
+
+	nvkm_wr32(device, 0x61a00c + doff, 0x00100000 | loadval);
+	mdelay(9);
+	udelay(500);
+	loadval = nvkm_mask(device, 0x61a00c + doff, 0xffffffff, 0x00000000);
+
+	dac->func->power(dac, false, false, false, false, false);
+	if (!(loadval & 0x80000000))
+		return -ETIMEDOUT;
+
+	return (loadval & 0x38000000) >> 27;
+}
+
+static void
+nv50_dac_power_wait(struct nvkm_device *device, const u32 doff)
+{
+	nvkm_msec(device, 2000,
+		if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
+			break;
+	);
+}
+
+void
+nv50_dac_power(struct nvkm_ior *dac, bool normal, bool pu,
+	       bool data, bool vsync, bool hsync)
+{
+	struct nvkm_device *device = dac->disp->engine.subdev.device;
+	const u32  doff = nv50_ior_base(dac);
+	const u32 shift = normal ? 0 : 16;
+	const u32 state = 0x80000000 | (0x00000040 * !    pu |
+					0x00000010 * !  data |
+					0x00000004 * ! vsync |
+					0x00000001 * ! hsync) << shift;
+	const u32 field = 0xc0000000 | (0x00000055 << shift);
+
+	nv50_dac_power_wait(device, doff);
+	nvkm_mask(device, 0x61a004 + doff, field, state);
+	nv50_dac_power_wait(device, doff);
+}
+
+static void
+nv50_dac_state(struct nvkm_ior *dac, struct nvkm_ior_state *state)
+{
+	struct nvkm_device *device = dac->disp->engine.subdev.device;
+	const u32 coff = dac->id * 8 + (state == &dac->arm) * 4;
+	u32 ctrl = nvkm_rd32(device, 0x610b58 + coff);
+
+	state->proto_evo = (ctrl & 0x00000f00) >> 8;
+	switch (state->proto_evo) {
+	case 0: state->proto = CRT; break;
+	default:
+		state->proto = UNKNOWN;
+		break;
+	}
+
+	state->head = ctrl & 0x00000003;
+}
+
+static const struct nvkm_ior_func
+nv50_dac = {
+	.state = nv50_dac_state,
+	.power = nv50_dac_power,
+	.sense = nv50_dac_sense,
+	.clock = nv50_dac_clock,
+};
+
+int
+nv50_dac_new(struct nvkm_disp *disp, int id)
+{
+	return nvkm_ior_new_(&nv50_dac, disp, DAC, id);
+}
+
+int
+nv50_dac_cnt(struct nvkm_disp *disp, unsigned long *pmask)
+{
+	struct nvkm_device *device = disp->engine.subdev.device;
+	*pmask = (nvkm_rd32(device, 0x610184) & 0x00700000) >> 20;
+	return 3;
+}