diff options
Diffstat (limited to 'sys/dev/drm2/i915/intel_crt.c')
-rw-r--r-- | sys/dev/drm2/i915/intel_crt.c | 378 |
1 files changed, 260 insertions, 118 deletions
diff --git a/sys/dev/drm2/i915/intel_crt.c b/sys/dev/drm2/i915/intel_crt.c index 6bad47f..e9ac349 100644 --- a/sys/dev/drm2/i915/intel_crt.c +++ b/sys/dev/drm2/i915/intel_crt.c @@ -28,13 +28,12 @@ __FBSDID("$FreeBSD$"); #include <dev/drm2/drmP.h> -#include <dev/drm2/drm.h> #include <dev/drm2/drm_crtc.h> #include <dev/drm2/drm_crtc_helper.h> #include <dev/drm2/drm_edid.h> +#include <dev/drm2/i915/intel_drv.h> #include <dev/drm2/i915/i915_drm.h> #include <dev/drm2/i915/i915_drv.h> -#include <dev/drm2/i915/intel_drv.h> /* Here's the desired hotplug mode */ #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \ @@ -46,7 +45,11 @@ __FBSDID("$FreeBSD$"); struct intel_crt { struct intel_encoder base; + /* DPMS state is stored in the connector, which we need in the + * encoder's enable/disable callbacks */ + struct intel_connector *connector; bool force_hotplug_required; + u32 adpa_reg; }; static struct intel_crt *intel_attached_crt(struct drm_connector *connector) @@ -55,36 +58,42 @@ static struct intel_crt *intel_attached_crt(struct drm_connector *connector) struct intel_crt, base); } -static void pch_crt_dpms(struct drm_encoder *encoder, int mode) +static struct intel_crt *intel_encoder_to_crt(struct intel_encoder *encoder) { - struct drm_device *dev = encoder->dev; + return container_of(encoder, struct intel_crt, base); +} + +static bool intel_crt_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) +{ + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 temp; + struct intel_crt *crt = intel_encoder_to_crt(encoder); + u32 tmp; - temp = I915_READ(PCH_ADPA); - temp &= ~ADPA_DAC_ENABLE; + tmp = I915_READ(crt->adpa_reg); - switch (mode) { - case DRM_MODE_DPMS_ON: - temp |= ADPA_DAC_ENABLE; - break; - case DRM_MODE_DPMS_STANDBY: - case DRM_MODE_DPMS_SUSPEND: - case DRM_MODE_DPMS_OFF: - /* Just leave port enable cleared */ - break; - } + if (!(tmp & ADPA_DAC_ENABLE)) + return false; - I915_WRITE(PCH_ADPA, temp); + if (HAS_PCH_CPT(dev)) + *pipe = PORT_TO_PIPE_CPT(tmp); + else + *pipe = PORT_TO_PIPE(tmp); + + return true; } -static void gmch_crt_dpms(struct drm_encoder *encoder, int mode) +/* Note: The caller is required to filter out dpms modes not supported by the + * platform. */ +static void intel_crt_set_dpms(struct intel_encoder *encoder, int mode) { - struct drm_device *dev = encoder->dev; + struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crt *crt = intel_encoder_to_crt(encoder); u32 temp; - temp = I915_READ(ADPA); + temp = I915_READ(crt->adpa_reg); temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE); temp &= ~ADPA_DAC_ENABLE; @@ -103,7 +112,64 @@ static void gmch_crt_dpms(struct drm_encoder *encoder, int mode) break; } - I915_WRITE(ADPA, temp); + I915_WRITE(crt->adpa_reg, temp); +} + +static void intel_disable_crt(struct intel_encoder *encoder) +{ + intel_crt_set_dpms(encoder, DRM_MODE_DPMS_OFF); +} + +static void intel_enable_crt(struct intel_encoder *encoder) +{ + struct intel_crt *crt = intel_encoder_to_crt(encoder); + + intel_crt_set_dpms(encoder, crt->connector->base.dpms); +} + + +static void intel_crt_dpms(struct drm_connector *connector, int mode) +{ + struct drm_device *dev = connector->dev; + struct intel_encoder *encoder = intel_attached_encoder(connector); + struct drm_crtc *crtc; + int old_dpms; + + /* PCH platforms and VLV only support on/off. */ + if (INTEL_INFO(dev)->gen >= 5 && mode != DRM_MODE_DPMS_ON) + mode = DRM_MODE_DPMS_OFF; + + if (mode == connector->dpms) + return; + + old_dpms = connector->dpms; + connector->dpms = mode; + + /* Only need to change hw state when actually enabled */ + crtc = encoder->base.crtc; + if (!crtc) { + encoder->connectors_active = false; + return; + } + + /* We need the pipe to run for anything but OFF. */ + if (mode == DRM_MODE_DPMS_OFF) + encoder->connectors_active = false; + else + encoder->connectors_active = true; + + if (mode < old_dpms) { + /* From off to on, enable the pipe first. */ + intel_crtc_update_dpms(crtc); + + intel_crt_set_dpms(encoder, mode); + } else { + intel_crt_set_dpms(encoder, mode); + + intel_crtc_update_dpms(crtc); + } + + intel_modeset_check_state(connector->dev); } static int intel_crt_mode_valid(struct drm_connector *connector, @@ -125,6 +191,11 @@ static int intel_crt_mode_valid(struct drm_connector *connector, if (mode->clock > max_clock) return MODE_CLOCK_HIGH; + /* The FDI receiver on LPT only supports 8bpc and only has 2 lanes. */ + if (HAS_PCH_LPT(dev) && + (ironlake_get_lanes_required(mode->clock, 270000, 24) > 2)) + return MODE_CLOCK_HIGH; + return MODE_OK; } @@ -142,37 +213,26 @@ static void intel_crt_mode_set(struct drm_encoder *encoder, struct drm_device *dev = encoder->dev; struct drm_crtc *crtc = encoder->crtc; + struct intel_crt *crt = + intel_encoder_to_crt(to_intel_encoder(encoder)); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct drm_i915_private *dev_priv = dev->dev_private; - int dpll_md_reg; - u32 adpa, dpll_md; - u32 adpa_reg; - - dpll_md_reg = DPLL_MD(intel_crtc->pipe); + u32 adpa; if (HAS_PCH_SPLIT(dev)) - adpa_reg = PCH_ADPA; + adpa = ADPA_HOTPLUG_BITS; else - adpa_reg = ADPA; - - /* - * Disable separate mode multiplier used when cloning SDVO to CRT - * XXX this needs to be adjusted when we really are cloning - */ - if (INTEL_INFO(dev)->gen >= 4 && !HAS_PCH_SPLIT(dev)) { - dpll_md = I915_READ(dpll_md_reg); - I915_WRITE(dpll_md_reg, - dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK); - } + adpa = 0; - adpa = ADPA_HOTPLUG_BITS; if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) adpa |= ADPA_HSYNC_ACTIVE_HIGH; if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) adpa |= ADPA_VSYNC_ACTIVE_HIGH; /* For CPT allow 3 pipe config, for others just use A or B */ - if (HAS_PCH_CPT(dev)) + if (HAS_PCH_LPT(dev)) + ; /* Those bits don't exist here */ + else if (HAS_PCH_CPT(dev)) adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe); else if (intel_crtc->pipe == 0) adpa |= ADPA_PIPE_A_SELECT; @@ -182,7 +242,7 @@ static void intel_crt_mode_set(struct drm_encoder *encoder, if (!HAS_PCH_SPLIT(dev)) I915_WRITE(BCLRPAT(intel_crtc->pipe), 0); - I915_WRITE(adpa_reg, adpa); + I915_WRITE(crt->adpa_reg, adpa); } static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) @@ -209,10 +269,9 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) I915_WRITE(PCH_ADPA, adpa); - if (_intel_wait_for(dev, - (I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, - 1000, 1, "915crt")) - DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER\n"); + if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, + 1000)) + DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); if (turn_off_dac) { I915_WRITE(PCH_ADPA, save_adpa); @@ -231,6 +290,42 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) return ret; } +static bool valleyview_crt_detect_hotplug(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 adpa; + bool ret; + u32 save_adpa; + + save_adpa = adpa = I915_READ(ADPA); + DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa); + + adpa |= ADPA_CRT_HOTPLUG_FORCE_TRIGGER; + + I915_WRITE(ADPA, adpa); + + if (wait_for((I915_READ(ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, + 1000)) { + DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); + I915_WRITE(ADPA, save_adpa); + } + + /* Check the status to see if both blue and green are on now */ + adpa = I915_READ(ADPA); + if ((adpa & ADPA_CRT_HOTPLUG_MONITOR_MASK) != 0) + ret = true; + else + ret = false; + + DRM_DEBUG_KMS("valleyview hotplug adpa=0x%x, result %d\n", adpa, ret); + + /* FIXME: debug force function and remove */ + ret = true; + + return ret; +} + /** * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence. * @@ -250,6 +345,9 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) if (HAS_PCH_SPLIT(dev)) return intel_ironlake_crt_detect_hotplug(connector); + if (IS_VALLEYVIEW(dev)) + return valleyview_crt_detect_hotplug(connector); + /* * On 4 series desktop, CRT detect sequence need to be done twice * to get a reliable result. @@ -266,9 +364,9 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) /* turn on the FORCE_DETECT */ I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); /* wait for FORCE_DETECT to go off */ - if (_intel_wait_for(dev, - (I915_READ(PORT_HOTPLUG_EN) & CRT_HOTPLUG_FORCE_DETECT) == 0, - 1000, 1, "915cr2")) + if (wait_for((I915_READ(PORT_HOTPLUG_EN) & + CRT_HOTPLUG_FORCE_DETECT) == 0, + 1000)) DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off"); } @@ -285,42 +383,72 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) return ret; } +static struct edid *intel_crt_get_edid(struct drm_connector *connector, + device_t i2c) +{ + struct edid *edid; + + edid = drm_get_edid(connector, i2c); + + if (!edid && !intel_gmbus_is_forced_bit(i2c)) { + DRM_DEBUG_KMS("CRT GMBUS EDID read failed, retry using GPIO bit-banging\n"); + intel_gmbus_force_bit(i2c, true); + edid = drm_get_edid(connector, i2c); + intel_gmbus_force_bit(i2c, false); + } + + return edid; +} + +/* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */ +static int intel_crt_ddc_get_modes(struct drm_connector *connector, + device_t adapter) +{ + struct edid *edid; + int ret; + + edid = intel_crt_get_edid(connector, adapter); + if (!edid) + return 0; + + ret = intel_connector_update_modes(connector, edid); + free(edid, DRM_MEM_KMS); + + return ret; +} + static bool intel_crt_detect_ddc(struct drm_connector *connector) { struct intel_crt *crt = intel_attached_crt(connector); struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private; + struct edid *edid; + device_t i2c; - /* CRT should always be at 0, but check anyway */ - if (crt->base.type != INTEL_OUTPUT_ANALOG) - return false; + BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG); + + i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->crt_ddc_pin); + edid = intel_crt_get_edid(connector, i2c); - if (intel_ddc_probe(&crt->base, dev_priv->crt_ddc_pin)) { - struct edid *edid; - bool is_digital = false; - device_t iic; + if (edid) { + bool is_digital = edid->input & DRM_EDID_INPUT_DIGITAL; - iic = intel_gmbus_get_adapter(dev_priv, dev_priv->crt_ddc_pin); - edid = drm_get_edid(connector, iic); /* * This may be a DVI-I connector with a shared DDC * link between analog and digital outputs, so we * have to check the EDID input spec of the attached device. - * - * On the other hand, what should we do if it is a broken EDID? */ - if (edid != NULL) { - is_digital = edid->input & DRM_EDID_INPUT_DIGITAL; - free(edid, DRM_MEM_KMS); - } - if (!is_digital) { DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n"); return true; - } else { - DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n"); } + + DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n"); + } else { + DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n"); } + free(edid, DRM_MEM_KMS); + return false; } @@ -453,30 +581,37 @@ intel_crt_detect(struct drm_connector *connector, bool force) struct intel_load_detect_pipe tmp; if (I915_HAS_HOTPLUG(dev)) { + /* We can not rely on the HPD pin always being correctly wired + * up, for example many KVM do not pass it through, and so + * only trust an assertion that the monitor is connected. + */ if (intel_crt_detect_hotplug(connector)) { DRM_DEBUG_KMS("CRT detected via hotplug\n"); return connector_status_connected; - } else { + } else DRM_DEBUG_KMS("CRT not detected via hotplug\n"); - return connector_status_disconnected; - } } if (intel_crt_detect_ddc(connector)) return connector_status_connected; + /* Load detection is broken on HPD capable machines. Whoever wants a + * broken monitor (without edid) to work behind a broken kvm (that fails + * to have the right resistors for HP detection) needs to fix this up. + * For now just bail out. */ + if (I915_HAS_HOTPLUG(dev)) + return connector_status_disconnected; + if (!force) return connector->status; /* for pre-945g platforms use load detect */ - if (intel_get_load_detect_pipe(&crt->base, connector, NULL, - &tmp)) { + if (intel_get_load_detect_pipe(connector, NULL, &tmp)) { if (intel_crt_detect_ddc(connector)) status = connector_status_connected; else status = intel_crt_load_detect(crt); - intel_release_load_detect_pipe(&crt->base, connector, - &tmp); + intel_release_load_detect_pipe(connector, &tmp); } else status = connector_status_unknown; @@ -485,10 +620,6 @@ intel_crt_detect(struct drm_connector *connector, bool force) static void intel_crt_destroy(struct drm_connector *connector) { - -#if 0 - drm_sysfs_connector_remove(connector); -#endif drm_connector_cleanup(connector); free(connector, DRM_MEM_KMS); } @@ -501,13 +632,13 @@ static int intel_crt_get_modes(struct drm_connector *connector) device_t i2c; i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->crt_ddc_pin); - ret = intel_ddc_get_modes(connector, i2c); + ret = intel_crt_ddc_get_modes(connector, i2c); if (ret || !IS_G4X(dev)) return ret; /* Try to probe digital port for output in DVI-I -> VGA mode. */ i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB); - return intel_ddc_get_modes(connector, i2c); + return intel_crt_ddc_get_modes(connector, i2c); } static int intel_crt_set_property(struct drm_connector *connector, @@ -520,36 +651,37 @@ static int intel_crt_set_property(struct drm_connector *connector, static void intel_crt_reset(struct drm_connector *connector) { struct drm_device *dev = connector->dev; + struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crt *crt = intel_attached_crt(connector); if (HAS_PCH_SPLIT(dev)) { + u32 adpa; + + adpa = I915_READ(PCH_ADPA); + adpa &= ~ADPA_CRT_HOTPLUG_MASK; + adpa |= ADPA_HOTPLUG_BITS; + I915_WRITE(PCH_ADPA, adpa); + POSTING_READ(PCH_ADPA); + + DRM_DEBUG_KMS("pch crt adpa set to 0x%x\n", adpa); crt->force_hotplug_required = 1; } + } /* * Routines for controlling stuff on the analog port */ -static const struct drm_encoder_helper_funcs pch_encoder_funcs = { +static const struct drm_encoder_helper_funcs crt_encoder_funcs = { .mode_fixup = intel_crt_mode_fixup, - .prepare = intel_encoder_prepare, - .commit = intel_encoder_commit, .mode_set = intel_crt_mode_set, - .dpms = pch_crt_dpms, -}; - -static const struct drm_encoder_helper_funcs gmch_encoder_funcs = { - .mode_fixup = intel_crt_mode_fixup, - .prepare = intel_encoder_prepare, - .commit = intel_encoder_commit, - .mode_set = intel_crt_mode_set, - .dpms = gmch_crt_dpms, + .disable = intel_encoder_noop, }; static const struct drm_connector_funcs intel_crt_connector_funcs = { .reset = intel_crt_reset, - .dpms = drm_helper_connector_dpms, + .dpms = intel_crt_dpms, .detect = intel_crt_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = intel_crt_destroy, @@ -566,7 +698,7 @@ static const struct drm_encoder_funcs intel_crt_enc_funcs = { .destroy = intel_encoder_destroy, }; -static int intel_no_crt_dmi_callback(const struct dmi_system_id *id) +static int __init intel_no_crt_dmi_callback(const struct dmi_system_id *id) { DRM_INFO("Skipping CRT initialization for %s\n", id->ident); return 1; @@ -590,17 +722,23 @@ void intel_crt_init(struct drm_device *dev) struct intel_crt *crt; struct intel_connector *intel_connector; struct drm_i915_private *dev_priv = dev->dev_private; - const struct drm_encoder_helper_funcs *encoder_helper_funcs; /* Skip machines without VGA that falsely report hotplug events */ if (dmi_check_system(intel_no_crt)) return; crt = malloc(sizeof(struct intel_crt), DRM_MEM_KMS, M_WAITOK | M_ZERO); + if (!crt) + return; intel_connector = malloc(sizeof(struct intel_connector), DRM_MEM_KMS, M_WAITOK | M_ZERO); + if (!intel_connector) { + free(crt, DRM_MEM_KMS); + return; + } connector = &intel_connector->base; + crt->connector = intel_connector; drm_connector_init(dev, &intel_connector->base, &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA); @@ -610,13 +748,11 @@ void intel_crt_init(struct drm_device *dev) intel_connector_attach_encoder(intel_connector, &crt->base); crt->base.type = INTEL_OUTPUT_ANALOG; - crt->base.clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT | - 1 << INTEL_ANALOG_CLONE_BIT | - 1 << INTEL_SDVO_LVDS_CLONE_BIT); - if (IS_HASWELL(dev)) + crt->base.cloneable = true; + if (IS_I830(dev)) crt->base.crtc_mask = (1 << 0); else - crt->base.crtc_mask = (1 << 0) | (1 << 1); + crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); if (IS_GEN2(dev)) connector->interlace_allowed = 0; @@ -625,16 +761,22 @@ void intel_crt_init(struct drm_device *dev) connector->doublescan_allowed = 0; if (HAS_PCH_SPLIT(dev)) - encoder_helper_funcs = &pch_encoder_funcs; + crt->adpa_reg = PCH_ADPA; + else if (IS_VALLEYVIEW(dev)) + crt->adpa_reg = VLV_ADPA; else - encoder_helper_funcs = &gmch_encoder_funcs; + crt->adpa_reg = ADPA; - drm_encoder_helper_add(&crt->base.base, encoder_helper_funcs); - drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); + crt->base.disable = intel_disable_crt; + crt->base.enable = intel_enable_crt; + if (IS_HASWELL(dev)) + crt->base.get_hw_state = intel_ddi_get_hw_state; + else + crt->base.get_hw_state = intel_crt_get_hw_state; + intel_connector->get_hw_state = intel_connector_get_hw_state; -#if 0 - drm_sysfs_connector_add(connector); -#endif + drm_encoder_helper_add(&crt->base.base, &crt_encoder_funcs); + drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); if (I915_HAS_HOTPLUG(dev)) connector->polled = DRM_CONNECTOR_POLL_HPD; @@ -645,18 +787,18 @@ void intel_crt_init(struct drm_device *dev) * Configure the automatic hotplug detection stuff */ crt->force_hotplug_required = 0; - if (HAS_PCH_SPLIT(dev)) { - u32 adpa; - adpa = I915_READ(PCH_ADPA); - adpa &= ~ADPA_CRT_HOTPLUG_MASK; - adpa |= ADPA_HOTPLUG_BITS; - I915_WRITE(PCH_ADPA, adpa); - POSTING_READ(PCH_ADPA); + dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS; - DRM_DEBUG_KMS("pch crt adpa set to 0x%x\n", adpa); - crt->force_hotplug_required = 1; - } + /* + * TODO: find a proper way to discover whether we need to set the the + * polarity and link reversal bits or not, instead of relying on the + * BIOS. + */ + if (HAS_PCH_LPT(dev)) { + u32 fdi_config = FDI_RX_POLARITY_REVERSED_LPT | + FDI_RX_LINK_REVERSAL_OVERRIDE; - dev_priv->hotplug_supported_mask |= CRT_HOTPLUG_INT_STATUS; + dev_priv->fdi_rx_config = I915_READ(_FDI_RXA_CTL) & fdi_config; + } } |