diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 838 |
1 files changed, 0 insertions, 838 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c deleted file mode 100644 index 3acec8c48166..000000000000 --- a/drivers/gpu/drm/i915/intel_crt.c +++ /dev/null @@ -1,838 +0,0 @@ -/* - * Copyright © 2006-2007 Intel Corporation - * - * 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. - * - * Authors: - * Eric Anholt <eric@anholt.net> - */ - -#include <linux/dmi.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <drm/drmP.h> -#include <drm/drm_crtc.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_edid.h> -#include "intel_drv.h" -#include <drm/i915_drm.h> -#include "i915_drv.h" - -/* Here's the desired hotplug mode */ -#define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \ - ADPA_CRT_HOTPLUG_WARMUP_10MS | \ - ADPA_CRT_HOTPLUG_SAMPLE_4S | \ - ADPA_CRT_HOTPLUG_VOLTAGE_50 | \ - ADPA_CRT_HOTPLUG_VOLREF_325MV | \ - ADPA_CRT_HOTPLUG_ENABLE) - -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) -{ - return container_of(intel_attached_encoder(connector), - struct intel_crt, base); -} - -static struct intel_crt *intel_encoder_to_crt(struct intel_encoder *encoder) -{ - 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; - struct intel_crt *crt = intel_encoder_to_crt(encoder); - u32 tmp; - - tmp = I915_READ(crt->adpa_reg); - - if (!(tmp & ADPA_DAC_ENABLE)) - return false; - - if (HAS_PCH_CPT(dev)) - *pipe = PORT_TO_PIPE_CPT(tmp); - else - *pipe = PORT_TO_PIPE(tmp); - - return true; -} - -static void intel_crt_get_config(struct intel_encoder *encoder, - struct intel_crtc_config *pipe_config) -{ - struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; - struct intel_crt *crt = intel_encoder_to_crt(encoder); - u32 tmp, flags = 0; - - tmp = I915_READ(crt->adpa_reg); - - if (tmp & ADPA_HSYNC_ACTIVE_HIGH) - flags |= DRM_MODE_FLAG_PHSYNC; - else - flags |= DRM_MODE_FLAG_NHSYNC; - - if (tmp & ADPA_VSYNC_ACTIVE_HIGH) - flags |= DRM_MODE_FLAG_PVSYNC; - else - flags |= DRM_MODE_FLAG_NVSYNC; - - pipe_config->adjusted_mode.flags |= flags; -} - -/* 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->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(crt->adpa_reg); - temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE); - temp &= ~ADPA_DAC_ENABLE; - - switch (mode) { - case DRM_MODE_DPMS_ON: - temp |= ADPA_DAC_ENABLE; - break; - case DRM_MODE_DPMS_STANDBY: - temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE; - break; - case DRM_MODE_DPMS_SUSPEND: - temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE; - break; - case DRM_MODE_DPMS_OFF: - temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE; - break; - } - - 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); -} - -/* Special dpms function to support cloning between dvo/sdvo/crt. */ -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; - - /* We call connector dpms manually below in case pipe dpms doesn't - * change due to cloning. */ - 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, - struct drm_display_mode *mode) -{ - struct drm_device *dev = connector->dev; - - int max_clock = 0; - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - - if (mode->clock < 25000) - return MODE_CLOCK_LOW; - - if (IS_GEN2(dev)) - max_clock = 350000; - else - max_clock = 400000; - 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; -} - -static bool intel_crt_compute_config(struct intel_encoder *encoder, - struct intel_crtc_config *pipe_config) -{ - struct drm_device *dev = encoder->base.dev; - - if (HAS_PCH_SPLIT(dev)) - pipe_config->has_pch_encoder = true; - - /* LPT FDI RX only supports 8bpc. */ - if (HAS_PCH_LPT(dev)) - pipe_config->pipe_bpp = 24; - - return true; -} - -static void intel_crt_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - - 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; - u32 adpa; - - if (HAS_PCH_SPLIT(dev)) - adpa = ADPA_HOTPLUG_BITS; - else - adpa = 0; - - 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_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; - else - adpa |= ADPA_PIPE_B_SELECT; - - if (!HAS_PCH_SPLIT(dev)) - I915_WRITE(BCLRPAT(intel_crtc->pipe), 0); - - I915_WRITE(crt->adpa_reg, adpa); -} - -static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct intel_crt *crt = intel_attached_crt(connector); - struct drm_i915_private *dev_priv = dev->dev_private; - u32 adpa; - bool ret; - - /* The first time through, trigger an explicit detection cycle */ - if (crt->force_hotplug_required) { - bool turn_off_dac = HAS_PCH_SPLIT(dev); - u32 save_adpa; - - crt->force_hotplug_required = 0; - - save_adpa = adpa = I915_READ(crt->adpa_reg); - DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa); - - adpa |= ADPA_CRT_HOTPLUG_FORCE_TRIGGER; - if (turn_off_dac) - adpa &= ~ADPA_DAC_ENABLE; - - I915_WRITE(crt->adpa_reg, adpa); - - if (wait_for((I915_READ(crt->adpa_reg) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, - 1000)) - DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); - - if (turn_off_dac) { - I915_WRITE(crt->adpa_reg, save_adpa); - POSTING_READ(crt->adpa_reg); - } - } - - /* Check the status to see if both blue and green are on now */ - adpa = I915_READ(crt->adpa_reg); - if ((adpa & ADPA_CRT_HOTPLUG_MONITOR_MASK) != 0) - ret = true; - else - ret = false; - DRM_DEBUG_KMS("ironlake hotplug adpa=0x%x, result %d\n", adpa, ret); - - return ret; -} - -static bool valleyview_crt_detect_hotplug(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct intel_crt *crt = intel_attached_crt(connector); - struct drm_i915_private *dev_priv = dev->dev_private; - u32 adpa; - bool ret; - u32 save_adpa; - - save_adpa = adpa = I915_READ(crt->adpa_reg); - DRM_DEBUG_KMS("trigger hotplug detect cycle: adpa=0x%x\n", adpa); - - adpa |= ADPA_CRT_HOTPLUG_FORCE_TRIGGER; - - I915_WRITE(crt->adpa_reg, adpa); - - if (wait_for((I915_READ(crt->adpa_reg) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, - 1000)) { - DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); - I915_WRITE(crt->adpa_reg, save_adpa); - } - - /* Check the status to see if both blue and green are on now */ - adpa = I915_READ(crt->adpa_reg); - 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. - * - * Not for i915G/i915GM - * - * \return true if CRT is connected. - * \return false if CRT is disconnected. - */ -static bool intel_crt_detect_hotplug(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - u32 hotplug_en, orig, stat; - bool ret = false; - int i, tries = 0; - - 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. - */ - - if (IS_G4X(dev) && !IS_GM45(dev)) - tries = 2; - else - tries = 1; - hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN); - hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; - - for (i = 0; i < tries ; i++) { - /* turn on the FORCE_DETECT */ - I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); - /* wait for FORCE_DETECT to go off */ - 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"); - } - - stat = I915_READ(PORT_HOTPLUG_STAT); - if ((stat & CRT_HOTPLUG_MONITOR_MASK) != CRT_HOTPLUG_MONITOR_NONE) - ret = true; - - /* clear the interrupt we just generated, if any */ - I915_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS); - - /* and put the bits back */ - I915_WRITE(PORT_HOTPLUG_EN, orig); - - return ret; -} - -static struct edid *intel_crt_get_edid(struct drm_connector *connector, - struct i2c_adapter *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, - struct i2c_adapter *adapter) -{ - struct edid *edid; - int ret; - - edid = intel_crt_get_edid(connector, adapter); - if (!edid) - return 0; - - ret = intel_connector_update_modes(connector, edid); - kfree(edid); - - 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; - struct i2c_adapter *i2c; - - BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG); - - i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin); - edid = intel_crt_get_edid(connector, i2c); - - if (edid) { - bool is_digital = edid->input & DRM_EDID_INPUT_DIGITAL; - - /* - * 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. - */ - if (!is_digital) { - DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n"); - return true; - } - - 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"); - } - - kfree(edid); - - return false; -} - -static enum drm_connector_status -intel_crt_load_detect(struct intel_crt *crt) -{ - struct drm_device *dev = crt->base.base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t pipe = to_intel_crtc(crt->base.base.crtc)->pipe; - uint32_t save_bclrpat; - uint32_t save_vtotal; - uint32_t vtotal, vactive; - uint32_t vsample; - uint32_t vblank, vblank_start, vblank_end; - uint32_t dsl; - uint32_t bclrpat_reg; - uint32_t vtotal_reg; - uint32_t vblank_reg; - uint32_t vsync_reg; - uint32_t pipeconf_reg; - uint32_t pipe_dsl_reg; - uint8_t st00; - enum drm_connector_status status; - - DRM_DEBUG_KMS("starting load-detect on CRT\n"); - - bclrpat_reg = BCLRPAT(pipe); - vtotal_reg = VTOTAL(pipe); - vblank_reg = VBLANK(pipe); - vsync_reg = VSYNC(pipe); - pipeconf_reg = PIPECONF(pipe); - pipe_dsl_reg = PIPEDSL(pipe); - - save_bclrpat = I915_READ(bclrpat_reg); - save_vtotal = I915_READ(vtotal_reg); - vblank = I915_READ(vblank_reg); - - vtotal = ((save_vtotal >> 16) & 0xfff) + 1; - vactive = (save_vtotal & 0x7ff) + 1; - - vblank_start = (vblank & 0xfff) + 1; - vblank_end = ((vblank >> 16) & 0xfff) + 1; - - /* Set the border color to purple. */ - I915_WRITE(bclrpat_reg, 0x500050); - - if (!IS_GEN2(dev)) { - uint32_t pipeconf = I915_READ(pipeconf_reg); - I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER); - POSTING_READ(pipeconf_reg); - /* Wait for next Vblank to substitue - * border color for Color info */ - intel_wait_for_vblank(dev, pipe); - st00 = I915_READ8(VGA_MSR_WRITE); - status = ((st00 & (1 << 4)) != 0) ? - connector_status_connected : - connector_status_disconnected; - - I915_WRITE(pipeconf_reg, pipeconf); - } else { - bool restore_vblank = false; - int count, detect; - - /* - * If there isn't any border, add some. - * Yes, this will flicker - */ - if (vblank_start <= vactive && vblank_end >= vtotal) { - uint32_t vsync = I915_READ(vsync_reg); - uint32_t vsync_start = (vsync & 0xffff) + 1; - - vblank_start = vsync_start; - I915_WRITE(vblank_reg, - (vblank_start - 1) | - ((vblank_end - 1) << 16)); - restore_vblank = true; - } - /* sample in the vertical border, selecting the larger one */ - if (vblank_start - vactive >= vtotal - vblank_end) - vsample = (vblank_start + vactive) >> 1; - else - vsample = (vtotal + vblank_end) >> 1; - - /* - * Wait for the border to be displayed - */ - while (I915_READ(pipe_dsl_reg) >= vactive) - ; - while ((dsl = I915_READ(pipe_dsl_reg)) <= vsample) - ; - /* - * Watch ST00 for an entire scanline - */ - detect = 0; - count = 0; - do { - count++; - /* Read the ST00 VGA status register */ - st00 = I915_READ8(VGA_MSR_WRITE); - if (st00 & (1 << 4)) - detect++; - } while ((I915_READ(pipe_dsl_reg) == dsl)); - - /* restore vblank if necessary */ - if (restore_vblank) - I915_WRITE(vblank_reg, vblank); - /* - * If more than 3/4 of the scanline detected a monitor, - * then it is assumed to be present. This works even on i830, - * where there isn't any way to force the border color across - * the screen - */ - status = detect * 4 > count * 3 ? - connector_status_connected : - connector_status_disconnected; - } - - /* Restore previous settings */ - I915_WRITE(bclrpat_reg, save_bclrpat); - - return status; -} - -static enum drm_connector_status -intel_crt_detect(struct drm_connector *connector, bool force) -{ - struct drm_device *dev = connector->dev; - struct intel_crt *crt = intel_attached_crt(connector); - enum drm_connector_status status; - 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 - DRM_DEBUG_KMS("CRT not detected via hotplug\n"); - } - - 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(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(connector, &tmp); - } else - status = connector_status_unknown; - - return status; -} - -static void intel_crt_destroy(struct drm_connector *connector) -{ - drm_sysfs_connector_remove(connector); - drm_connector_cleanup(connector); - kfree(connector); -} - -static int intel_crt_get_modes(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - int ret; - struct i2c_adapter *i2c; - - i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin); - 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_crt_ddc_get_modes(connector, i2c); -} - -static int intel_crt_set_property(struct drm_connector *connector, - struct drm_property *property, - uint64_t value) -{ - return 0; -} - -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(crt->adpa_reg); - adpa &= ~ADPA_CRT_HOTPLUG_MASK; - adpa |= ADPA_HOTPLUG_BITS; - I915_WRITE(crt->adpa_reg, adpa); - POSTING_READ(crt->adpa_reg); - - 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 crt_encoder_funcs = { - .mode_set = intel_crt_mode_set, -}; - -static const struct drm_connector_funcs intel_crt_connector_funcs = { - .reset = intel_crt_reset, - .dpms = intel_crt_dpms, - .detect = intel_crt_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = intel_crt_destroy, - .set_property = intel_crt_set_property, -}; - -static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs = { - .mode_valid = intel_crt_mode_valid, - .get_modes = intel_crt_get_modes, - .best_encoder = intel_best_encoder, -}; - -static const struct drm_encoder_funcs intel_crt_enc_funcs = { - .destroy = intel_encoder_destroy, -}; - -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; -} - -static const struct dmi_system_id intel_no_crt[] = { - { - .callback = intel_no_crt_dmi_callback, - .ident = "ACER ZGB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ACER"), - DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), - }, - }, - { } -}; - -void intel_crt_init(struct drm_device *dev) -{ - struct drm_connector *connector; - struct intel_crt *crt; - struct intel_connector *intel_connector; - struct drm_i915_private *dev_priv = dev->dev_private; - - /* Skip machines without VGA that falsely report hotplug events */ - if (dmi_check_system(intel_no_crt)) - return; - - crt = kzalloc(sizeof(struct intel_crt), GFP_KERNEL); - if (!crt) - return; - - intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); - if (!intel_connector) { - kfree(crt); - return; - } - - connector = &intel_connector->base; - crt->connector = intel_connector; - drm_connector_init(dev, &intel_connector->base, - &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA); - - drm_encoder_init(dev, &crt->base.base, &intel_crt_enc_funcs, - DRM_MODE_ENCODER_DAC); - - intel_connector_attach_encoder(intel_connector, &crt->base); - - crt->base.type = INTEL_OUTPUT_ANALOG; - crt->base.cloneable = true; - if (IS_I830(dev)) - crt->base.crtc_mask = (1 << 0); - else - crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); - - if (IS_GEN2(dev)) - connector->interlace_allowed = 0; - else - connector->interlace_allowed = 1; - connector->doublescan_allowed = 0; - - if (HAS_PCH_SPLIT(dev)) - crt->adpa_reg = PCH_ADPA; - else if (IS_VALLEYVIEW(dev)) - crt->adpa_reg = VLV_ADPA; - else - crt->adpa_reg = ADPA; - - crt->base.compute_config = intel_crt_compute_config; - crt->base.disable = intel_disable_crt; - crt->base.enable = intel_enable_crt; - crt->base.get_config = intel_crt_get_config; - if (I915_HAS_HOTPLUG(dev)) - crt->base.hpd_pin = HPD_CRT; - if (HAS_DDI(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; - - drm_encoder_helper_add(&crt->base.base, &crt_encoder_funcs); - drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); - - drm_sysfs_connector_add(connector); - - if (!I915_HAS_HOTPLUG(dev)) - intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT; - - /* - * Configure the automatic hotplug detection stuff - */ - crt->force_hotplug_required = 0; - - /* - * 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->fdi_rx_config = I915_READ(_FDI_RXA_CTL) & fdi_config; - } -} |