#define GEN6_PCODE_DATA 0x138128
#define GEN6_PCODE_FREQ_IA_RATIO_SHIFT 8
+#define G4X_AUD_VID_DID 0x62020
+#define INTEL_AUDIO_DEVCL 0x808629FB
+#define INTEL_AUDIO_DEVBLC 0x80862801
+#define INTEL_AUDIO_DEVCTG 0x80862802
+
+#define G4X_AUD_CNTL_ST 0x620B4
+#define G4X_ELDV_DEVCL_DEVBLC (1 << 13)
+#define G4X_ELDV_DEVCTG (1 << 14)
+#define G4X_ELD_ADDR (0xf << 5)
+#define G4X_ELD_ACK (1 << 4)
+#define G4X_HDMIW_HDMIEDID 0x6210C
+
+#define GEN5_HDMIW_HDMIEDID_A 0xE2050
+#define GEN5_AUD_CNTL_ST_A 0xE20B4
+#define GEN5_ELD_BUFFER_SIZE (0x1f << 10)
+#define GEN5_ELD_ADDRESS (0x1f << 5)
+#define GEN5_ELD_ACK (1 << 4)
+#define GEN5_AUD_CNTL_ST2 0xE20C0
+#define GEN5_ELD_VALIDB (1 << 0)
+#define GEN5_CP_READYB (1 << 1)
+
+#define GEN7_HDMIW_HDMIEDID_A 0xE5050
+#define GEN7_AUD_CNTRL_ST_A 0xE50B4
+#define GEN7_AUD_CNTRL_ST2 0xE50C0
+
#endif /* _I915_REG_H_ */
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/vgaarb.h>
+#include <drm/drm_edid.h>
#include "drmP.h"
#include "intel_drv.h"
#include "i915_drm.h"
return ret;
}
+static void g4x_write_eld(struct drm_connector *connector,
+ struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = connector->dev->dev_private;
+ uint8_t *eld = connector->eld;
+ uint32_t eldv;
+ uint32_t len;
+ uint32_t i;
+
+ i = I915_READ(G4X_AUD_VID_DID);
+
+ if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
+ eldv = G4X_ELDV_DEVCL_DEVBLC;
+ else
+ eldv = G4X_ELDV_DEVCTG;
+
+ i = I915_READ(G4X_AUD_CNTL_ST);
+ i &= ~(eldv | G4X_ELD_ADDR);
+ len = (i >> 9) & 0x1f; /* ELD buffer size */
+ I915_WRITE(G4X_AUD_CNTL_ST, i);
+
+ if (!eld[0])
+ return;
+
+ len = min_t(uint8_t, eld[2], len);
+ DRM_DEBUG_DRIVER("ELD size %d\n", len);
+ for (i = 0; i < len; i++)
+ I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
+
+ i = I915_READ(G4X_AUD_CNTL_ST);
+ i |= eldv;
+ I915_WRITE(G4X_AUD_CNTL_ST, i);
+}
+
+static void ironlake_write_eld(struct drm_connector *connector,
+ struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = connector->dev->dev_private;
+ uint8_t *eld = connector->eld;
+ uint32_t eldv;
+ uint32_t i;
+ int len;
+ int hdmiw_hdmiedid;
+ int aud_cntl_st;
+ int aud_cntrl_st2;
+
+ if (IS_IVYBRIDGE(connector->dev)) {
+ hdmiw_hdmiedid = GEN7_HDMIW_HDMIEDID_A;
+ aud_cntl_st = GEN7_AUD_CNTRL_ST_A;
+ aud_cntrl_st2 = GEN7_AUD_CNTRL_ST2;
+ } else {
+ hdmiw_hdmiedid = GEN5_HDMIW_HDMIEDID_A;
+ aud_cntl_st = GEN5_AUD_CNTL_ST_A;
+ aud_cntrl_st2 = GEN5_AUD_CNTL_ST2;
+ }
+
+ i = to_intel_crtc(crtc)->pipe;
+ hdmiw_hdmiedid += i * 0x100;
+ aud_cntl_st += i * 0x100;
+
+ DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(i));
+
+ i = I915_READ(aud_cntl_st);
+ i = (i >> 29) & 0x3; /* DIP_Port_Select, 0x1 = PortB */
+ if (!i) {
+ DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
+ /* operate blindly on all ports */
+ eldv = GEN5_ELD_VALIDB;
+ eldv |= GEN5_ELD_VALIDB << 4;
+ eldv |= GEN5_ELD_VALIDB << 8;
+ } else {
+ DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i);
+ eldv = GEN5_ELD_VALIDB << ((i - 1) * 4);
+ }
+
+ i = I915_READ(aud_cntrl_st2);
+ i &= ~eldv;
+ I915_WRITE(aud_cntrl_st2, i);
+
+ if (!eld[0])
+ return;
+
+ if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
+ DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
+ eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
+ }
+
+ i = I915_READ(aud_cntl_st);
+ i &= ~GEN5_ELD_ADDRESS;
+ I915_WRITE(aud_cntl_st, i);
+
+ len = min_t(uint8_t, eld[2], 21); /* 84 bytes of hw ELD buffer */
+ DRM_DEBUG_DRIVER("ELD size %d\n", len);
+ for (i = 0; i < len; i++)
+ I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
+
+ i = I915_READ(aud_cntrl_st2);
+ i |= eldv;
+ I915_WRITE(aud_cntrl_st2, i);
+}
+
+void intel_write_eld(struct drm_encoder *encoder,
+ struct drm_display_mode *mode)
+{
+ struct drm_crtc *crtc = encoder->crtc;
+ struct drm_connector *connector;
+ struct drm_device *dev = encoder->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ connector = drm_select_eld(encoder, mode);
+ if (!connector)
+ return;
+
+ DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
+ connector->base.id,
+ drm_get_connector_name(connector),
+ connector->encoder->base.id,
+ drm_get_encoder_name(connector->encoder));
+
+ connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
+
+ if (dev_priv->display.write_eld)
+ dev_priv->display.write_eld(connector, crtc);
+}
+
/** Loads the palette/gamma unit for the CRTC with the prepared values */
void intel_crtc_load_lut(struct drm_crtc *crtc)
{
}
dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
dev_priv->display.init_clock_gating = ironlake_init_clock_gating;
+ dev_priv->display.write_eld = ironlake_write_eld;
} else if (IS_GEN6(dev)) {
if (SNB_READ_WM0_LATENCY()) {
dev_priv->display.update_wm = sandybridge_update_wm;
}
dev_priv->display.fdi_link_train = gen6_fdi_link_train;
dev_priv->display.init_clock_gating = gen6_init_clock_gating;
+ dev_priv->display.write_eld = ironlake_write_eld;
} else if (IS_IVYBRIDGE(dev)) {
/* FIXME: detect B0+ stepping and use auto training */
dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
dev_priv->display.update_wm = NULL;
}
dev_priv->display.init_clock_gating = ivybridge_init_clock_gating;
-
+ dev_priv->display.write_eld = ironlake_write_eld;
} else
dev_priv->display.update_wm = NULL;
} else if (IS_PINEVIEW(dev)) {
dev_priv->display.update_wm = pineview_update_wm;
dev_priv->display.init_clock_gating = gen3_init_clock_gating;
} else if (IS_G4X(dev)) {
+ dev_priv->display.write_eld = g4x_write_eld;
dev_priv->display.update_wm = g4x_update_wm;
dev_priv->display.init_clock_gating = g4x_init_clock_gating;
} else if (IS_GEN4(dev)) {
projects / cascardo / linux.git / commitdiff