[PATCH 12/28] drm/via: Add via_encoder.c

[Kevin Brace <kevinbrace@gmx.com>]

From: Kevin Brace <kevinbrace@bracecomputerlab.com>

Signed-off-by: Kevin Brace <kevinbrace@bracecomputerlab.com>
---
 drivers/gpu/drm/via/via_encoder.c | 173 ++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 drivers/gpu/drm/via/via_encoder.c

diff --git a/drivers/gpu/drm/via/via_encoder.c b/drivers/gpu/drm/via/via_encoder.c
new file mode 100644
index 000000000000..eae693fc5141
--- /dev/null
+++ b/drivers/gpu/drm/via/via_encoder.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright © 2017-2018 Kevin Brace.
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Author(s):
+ * Kevin Brace <kevinbrace@bracecomputerlab.com>
+ */
+
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+
+#include "via_drv.h"
+
+
+void via_transmitter_io_pad_state(struct via_drm_priv *dev_priv,
+						uint32_t di_port,
+						bool io_pad_on)
+{
+	DRM_DEBUG_KMS("Entered %s.\n", __func__);
+
+	switch(di_port) {
+	case VIA_DI_PORT_DVP0:
+		via_dvp0_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case VIA_DI_PORT_DVP1:
+		via_dvp1_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case VIA_DI_PORT_FPDPLOW:
+		via_fpdp_low_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case VIA_DI_PORT_FPDPHIGH:
+		via_fpdp_high_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case (VIA_DI_PORT_FPDPLOW |
+		VIA_DI_PORT_FPDPHIGH):
+		via_fpdp_low_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		via_fpdp_high_set_io_pad_state(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case VIA_DI_PORT_LVDS1:
+		via_lvds1_set_io_pad_setting(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case VIA_DI_PORT_LVDS2:
+		via_lvds2_set_io_pad_setting(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	case (VIA_DI_PORT_LVDS1 |
+		VIA_DI_PORT_LVDS2):
+		via_lvds1_set_io_pad_setting(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		via_lvds2_set_io_pad_setting(VGABASE,
+					io_pad_on ? 0x03 : 0x00);
+		break;
+	default:
+		break;
+	}
+
+	DRM_DEBUG_KMS("Exiting %s.\n", __func__);
+}
+
+void via_transmitter_clock_drive_strength(
+					struct via_drm_priv *dev_priv,
+					u32 di_port, u8 drive_strength)
+{
+	DRM_DEBUG_KMS("Entered %s.\n", __func__);
+
+	switch(di_port) {
+	case VIA_DI_PORT_DVP0:
+		via_dvp0_set_clock_drive_strength(VGABASE,
+						drive_strength);
+		break;
+	case VIA_DI_PORT_DVP1:
+		via_dvp1_set_clock_drive_strength(VGABASE,
+						drive_strength);
+		break;
+	default:
+		break;
+	}
+
+	DRM_DEBUG_KMS("Exiting %s.\n", __func__);
+}
+
+void via_transmitter_data_drive_strength(
+					struct via_drm_priv *dev_priv,
+					u32 di_port, u8 drive_strength)
+{
+	DRM_DEBUG_KMS("Entered %s.\n", __func__);
+
+	switch(di_port) {
+	case VIA_DI_PORT_DVP0:
+		via_dvp0_set_data_drive_strength(VGABASE,
+						drive_strength);
+		break;
+	case VIA_DI_PORT_DVP1:
+		via_dvp1_set_data_drive_strength(VGABASE,
+						drive_strength);
+		break;
+	default:
+		break;
+	}
+
+	DRM_DEBUG_KMS("Exiting %s.\n", __func__);
+}
+
+void via_transmitter_display_source(struct via_drm_priv *dev_priv,
+						u32 di_port, int index)
+{
+	u8 display_source = index & 0x01;
+
+	DRM_DEBUG_KMS("Entered %s.\n", __func__);
+
+	switch(di_port) {
+	case VIA_DI_PORT_DVP0:
+		via_dvp0_set_display_source(VGABASE, display_source);
+		break;
+	case VIA_DI_PORT_DVP1:
+		via_dvp1_set_display_source(VGABASE, display_source);
+		break;
+	case VIA_DI_PORT_FPDPLOW:
+		via_fpdp_low_set_display_source(VGABASE, display_source);
+		via_dvp1_set_display_source(VGABASE, display_source);
+		break;
+	case VIA_DI_PORT_FPDPHIGH:
+		via_fpdp_high_set_display_source(VGABASE, display_source);
+		via_dvp0_set_display_source(VGABASE, display_source);
+		break;
+	case (VIA_DI_PORT_FPDPLOW |
+		VIA_DI_PORT_FPDPHIGH):
+		via_fpdp_low_set_display_source(VGABASE, display_source);
+		via_fpdp_high_set_display_source(VGABASE, display_source);
+		break;
+	case VIA_DI_PORT_LVDS1:
+		via_lvds1_set_display_source(VGABASE, display_source);
+		break;
+	case VIA_DI_PORT_LVDS2:
+		via_lvds2_set_display_source(VGABASE, display_source);
+		break;
+	case (VIA_DI_PORT_LVDS1 |
+		VIA_DI_PORT_LVDS2):
+		via_lvds1_set_display_source(VGABASE, display_source);
+		via_lvds2_set_display_source(VGABASE, display_source);
+		break;
+	default:
+		break;
+	}
+
+	DRM_DEBUG_KMS("Exiting %s.\n", __func__);
+}
+
--
2.35.1