diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dvo.c | 566 |
1 files changed, 0 insertions, 566 deletions
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c deleted file mode 100644 index c1544a53095d..000000000000 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ /dev/null @@ -1,566 +0,0 @@ -/* - * Copyright 2006 Dave Airlie <airlied@linux.ie> - * 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/i2c.h> -#include <linux/slab.h> -#include <drm/drmP.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_crtc.h> -#include "intel_drv.h" -#include <drm/i915_drm.h> -#include "i915_drv.h" -#include "dvo.h" - -#define SIL164_ADDR 0x38 -#define CH7xxx_ADDR 0x76 -#define TFP410_ADDR 0x38 -#define NS2501_ADDR 0x38 - -static const struct intel_dvo_device intel_dvo_devices[] = { - { - .type = INTEL_DVO_CHIP_TMDS, - .name = "sil164", - .dvo_reg = DVOC, - .dvo_srcdim_reg = DVOC_SRCDIM, - .slave_addr = SIL164_ADDR, - .dev_ops = &sil164_ops, - }, - { - .type = INTEL_DVO_CHIP_TMDS, - .name = "ch7xxx", - .dvo_reg = DVOC, - .dvo_srcdim_reg = DVOC_SRCDIM, - .slave_addr = CH7xxx_ADDR, - .dev_ops = &ch7xxx_ops, - }, - { - .type = INTEL_DVO_CHIP_TMDS, - .name = "ch7xxx", - .dvo_reg = DVOC, - .dvo_srcdim_reg = DVOC_SRCDIM, - .slave_addr = 0x75, /* For some ch7010 */ - .dev_ops = &ch7xxx_ops, - }, - { - .type = INTEL_DVO_CHIP_LVDS, - .name = "ivch", - .dvo_reg = DVOA, - .dvo_srcdim_reg = DVOA_SRCDIM, - .slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */ - .dev_ops = &ivch_ops, - }, - { - .type = INTEL_DVO_CHIP_TMDS, - .name = "tfp410", - .dvo_reg = DVOC, - .dvo_srcdim_reg = DVOC_SRCDIM, - .slave_addr = TFP410_ADDR, - .dev_ops = &tfp410_ops, - }, - { - .type = INTEL_DVO_CHIP_LVDS, - .name = "ch7017", - .dvo_reg = DVOC, - .dvo_srcdim_reg = DVOC_SRCDIM, - .slave_addr = 0x75, - .gpio = GMBUS_PIN_DPB, - .dev_ops = &ch7017_ops, - }, - { - .type = INTEL_DVO_CHIP_TMDS, - .name = "ns2501", - .dvo_reg = DVOB, - .dvo_srcdim_reg = DVOB_SRCDIM, - .slave_addr = NS2501_ADDR, - .dev_ops = &ns2501_ops, - } -}; - -struct intel_dvo { - struct intel_encoder base; - - struct intel_dvo_device dev; - - struct intel_connector *attached_connector; - - bool panel_wants_dither; -}; - -static struct intel_dvo *enc_to_dvo(struct intel_encoder *encoder) -{ - return container_of(encoder, struct intel_dvo, base); -} - -static struct intel_dvo *intel_attached_dvo(struct drm_connector *connector) -{ - return enc_to_dvo(intel_attached_encoder(connector)); -} - -static bool intel_dvo_connector_get_hw_state(struct intel_connector *connector) -{ - struct drm_device *dev = connector->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base); - u32 tmp; - - tmp = I915_READ(intel_dvo->dev.dvo_reg); - - if (!(tmp & DVO_ENABLE)) - return false; - - return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev); -} - -static bool intel_dvo_get_hw_state(struct intel_encoder *encoder, - enum pipe *pipe) -{ - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - u32 tmp; - - tmp = I915_READ(intel_dvo->dev.dvo_reg); - - if (!(tmp & DVO_ENABLE)) - return false; - - *pipe = PORT_TO_PIPE(tmp); - - return true; -} - -static void intel_dvo_get_config(struct intel_encoder *encoder, - struct intel_crtc_state *pipe_config) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - u32 tmp, flags = 0; - - tmp = I915_READ(intel_dvo->dev.dvo_reg); - if (tmp & DVO_HSYNC_ACTIVE_HIGH) - flags |= DRM_MODE_FLAG_PHSYNC; - else - flags |= DRM_MODE_FLAG_NHSYNC; - if (tmp & DVO_VSYNC_ACTIVE_HIGH) - flags |= DRM_MODE_FLAG_PVSYNC; - else - flags |= DRM_MODE_FLAG_NVSYNC; - - pipe_config->base.adjusted_mode.flags |= flags; - - pipe_config->base.adjusted_mode.crtc_clock = pipe_config->port_clock; -} - -static void intel_disable_dvo(struct intel_encoder *encoder, - struct intel_crtc_state *old_crtc_state, - struct drm_connector_state *old_conn_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - i915_reg_t dvo_reg = intel_dvo->dev.dvo_reg; - u32 temp = I915_READ(dvo_reg); - - intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false); - I915_WRITE(dvo_reg, temp & ~DVO_ENABLE); - I915_READ(dvo_reg); -} - -static void intel_enable_dvo(struct intel_encoder *encoder, - struct intel_crtc_state *pipe_config, - struct drm_connector_state *conn_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - i915_reg_t dvo_reg = intel_dvo->dev.dvo_reg; - u32 temp = I915_READ(dvo_reg); - - intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev, - &pipe_config->base.mode, - &pipe_config->base.adjusted_mode); - - I915_WRITE(dvo_reg, temp | DVO_ENABLE); - I915_READ(dvo_reg); - - intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true); -} - -static enum drm_mode_status -intel_dvo_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct intel_dvo *intel_dvo = intel_attached_dvo(connector); - const struct drm_display_mode *fixed_mode = - to_intel_connector(connector)->panel.fixed_mode; - int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; - int target_clock = mode->clock; - - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - - /* XXX: Validate clock range */ - - if (fixed_mode) { - if (mode->hdisplay > fixed_mode->hdisplay) - return MODE_PANEL; - if (mode->vdisplay > fixed_mode->vdisplay) - return MODE_PANEL; - - target_clock = fixed_mode->clock; - } - - if (target_clock > max_dotclk) - return MODE_CLOCK_HIGH; - - return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode); -} - -static bool intel_dvo_compute_config(struct intel_encoder *encoder, - struct intel_crtc_state *pipe_config, - struct drm_connector_state *conn_state) -{ - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - const struct drm_display_mode *fixed_mode = - intel_dvo->attached_connector->panel.fixed_mode; - struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; - - /* If we have timings from the BIOS for the panel, put them in - * to the adjusted mode. The CRTC will be set up for this mode, - * with the panel scaling set up to source from the H/VDisplay - * of the original mode. - */ - if (fixed_mode) - intel_fixed_panel_mode(fixed_mode, adjusted_mode); - - return true; -} - -static void intel_dvo_pre_enable(struct intel_encoder *encoder, - struct intel_crtc_state *pipe_config, - struct drm_connector_state *conn_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc); - const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; - struct intel_dvo *intel_dvo = enc_to_dvo(encoder); - int pipe = crtc->pipe; - u32 dvo_val; - i915_reg_t dvo_reg = intel_dvo->dev.dvo_reg; - i915_reg_t dvo_srcdim_reg = intel_dvo->dev.dvo_srcdim_reg; - - /* Save the data order, since I don't know what it should be set to. */ - dvo_val = I915_READ(dvo_reg) & - (DVO_PRESERVE_MASK | DVO_DATA_ORDER_GBRG); - dvo_val |= DVO_DATA_ORDER_FP | DVO_BORDER_ENABLE | - DVO_BLANK_ACTIVE_HIGH; - - if (pipe == 1) - dvo_val |= DVO_PIPE_B_SELECT; - dvo_val |= DVO_PIPE_STALL; - if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) - dvo_val |= DVO_HSYNC_ACTIVE_HIGH; - if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) - dvo_val |= DVO_VSYNC_ACTIVE_HIGH; - - /*I915_WRITE(DVOB_SRCDIM, - (adjusted_mode->crtc_hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | - (adjusted_mode->crtc_vdisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/ - I915_WRITE(dvo_srcdim_reg, - (adjusted_mode->crtc_hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | - (adjusted_mode->crtc_vdisplay << DVO_SRCDIM_VERTICAL_SHIFT)); - /*I915_WRITE(DVOB, dvo_val);*/ - I915_WRITE(dvo_reg, dvo_val); -} - -/** - * Detect the output connection on our DVO device. - * - * Unimplemented. - */ -static enum drm_connector_status -intel_dvo_detect(struct drm_connector *connector, bool force) -{ - struct intel_dvo *intel_dvo = intel_attached_dvo(connector); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", - connector->base.id, connector->name); - return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev); -} - -static int intel_dvo_get_modes(struct drm_connector *connector) -{ - struct drm_i915_private *dev_priv = to_i915(connector->dev); - const struct drm_display_mode *fixed_mode = - to_intel_connector(connector)->panel.fixed_mode; - - /* We should probably have an i2c driver get_modes function for those - * devices which will have a fixed set of modes determined by the chip - * (TV-out, for example), but for now with just TMDS and LVDS, - * that's not the case. - */ - intel_ddc_get_modes(connector, - intel_gmbus_get_adapter(dev_priv, GMBUS_PIN_DPC)); - if (!list_empty(&connector->probed_modes)) - return 1; - - if (fixed_mode) { - struct drm_display_mode *mode; - mode = drm_mode_duplicate(connector->dev, fixed_mode); - if (mode) { - drm_mode_probed_add(connector, mode); - return 1; - } - } - - return 0; -} - -static void intel_dvo_destroy(struct drm_connector *connector) -{ - drm_connector_cleanup(connector); - intel_panel_fini(&to_intel_connector(connector)->panel); - kfree(connector); -} - -static const struct drm_connector_funcs intel_dvo_connector_funcs = { - .dpms = drm_atomic_helper_connector_dpms, - .detect = intel_dvo_detect, - .late_register = intel_connector_register, - .early_unregister = intel_connector_unregister, - .destroy = intel_dvo_destroy, - .fill_modes = drm_helper_probe_single_connector_modes, - .set_property = drm_atomic_helper_connector_set_property, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, -}; - -static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = { - .mode_valid = intel_dvo_mode_valid, - .get_modes = intel_dvo_get_modes, -}; - -static void intel_dvo_enc_destroy(struct drm_encoder *encoder) -{ - struct intel_dvo *intel_dvo = enc_to_dvo(to_intel_encoder(encoder)); - - if (intel_dvo->dev.dev_ops->destroy) - intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev); - - intel_encoder_destroy(encoder); -} - -static const struct drm_encoder_funcs intel_dvo_enc_funcs = { - .destroy = intel_dvo_enc_destroy, -}; - -/** - * Attempts to get a fixed panel timing for LVDS (currently only the i830). - * - * Other chips with DVO LVDS will need to extend this to deal with the LVDS - * chip being on DVOB/C and having multiple pipes. - */ -static struct drm_display_mode * -intel_dvo_get_current_mode(struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_dvo *intel_dvo = intel_attached_dvo(connector); - uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg); - struct drm_display_mode *mode = NULL; - - /* If the DVO port is active, that'll be the LVDS, so we can pull out - * its timings to get how the BIOS set up the panel. - */ - if (dvo_val & DVO_ENABLE) { - struct intel_crtc *crtc; - int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0; - - crtc = intel_get_crtc_for_pipe(dev_priv, pipe); - if (crtc) { - mode = intel_crtc_mode_get(dev, &crtc->base); - if (mode) { - mode->type |= DRM_MODE_TYPE_PREFERRED; - if (dvo_val & DVO_HSYNC_ACTIVE_HIGH) - mode->flags |= DRM_MODE_FLAG_PHSYNC; - if (dvo_val & DVO_VSYNC_ACTIVE_HIGH) - mode->flags |= DRM_MODE_FLAG_PVSYNC; - } - } - } - - return mode; -} - -static enum port intel_dvo_port(i915_reg_t dvo_reg) -{ - if (i915_mmio_reg_equal(dvo_reg, DVOA)) - return PORT_A; - else if (i915_mmio_reg_equal(dvo_reg, DVOB)) - return PORT_B; - else - return PORT_C; -} - -void intel_dvo_init(struct drm_i915_private *dev_priv) -{ - struct intel_encoder *intel_encoder; - struct intel_dvo *intel_dvo; - struct intel_connector *intel_connector; - int i; - int encoder_type = DRM_MODE_ENCODER_NONE; - - intel_dvo = kzalloc(sizeof(*intel_dvo), GFP_KERNEL); - if (!intel_dvo) - return; - - intel_connector = intel_connector_alloc(); - if (!intel_connector) { - kfree(intel_dvo); - return; - } - - intel_dvo->attached_connector = intel_connector; - - intel_encoder = &intel_dvo->base; - - intel_encoder->disable = intel_disable_dvo; - intel_encoder->enable = intel_enable_dvo; - intel_encoder->get_hw_state = intel_dvo_get_hw_state; - intel_encoder->get_config = intel_dvo_get_config; - intel_encoder->compute_config = intel_dvo_compute_config; - intel_encoder->pre_enable = intel_dvo_pre_enable; - intel_connector->get_hw_state = intel_dvo_connector_get_hw_state; - - /* Now, try to find a controller */ - for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) { - struct drm_connector *connector = &intel_connector->base; - const struct intel_dvo_device *dvo = &intel_dvo_devices[i]; - struct i2c_adapter *i2c; - int gpio; - bool dvoinit; - enum pipe pipe; - uint32_t dpll[I915_MAX_PIPES]; - enum port port; - - /* Allow the I2C driver info to specify the GPIO to be used in - * special cases, but otherwise default to what's defined - * in the spec. - */ - if (intel_gmbus_is_valid_pin(dev_priv, dvo->gpio)) - gpio = dvo->gpio; - else if (dvo->type == INTEL_DVO_CHIP_LVDS) - gpio = GMBUS_PIN_SSC; - else - gpio = GMBUS_PIN_DPB; - - /* Set up the I2C bus necessary for the chip we're probing. - * It appears that everything is on GPIOE except for panels - * on i830 laptops, which are on GPIOB (DVOA). - */ - i2c = intel_gmbus_get_adapter(dev_priv, gpio); - - intel_dvo->dev = *dvo; - - /* GMBUS NAK handling seems to be unstable, hence let the - * transmitter detection run in bit banging mode for now. - */ - intel_gmbus_force_bit(i2c, true); - - /* ns2501 requires the DVO 2x clock before it will - * respond to i2c accesses, so make sure we have - * have the clock enabled before we attempt to - * initialize the device. - */ - for_each_pipe(dev_priv, pipe) { - dpll[pipe] = I915_READ(DPLL(pipe)); - I915_WRITE(DPLL(pipe), dpll[pipe] | DPLL_DVO_2X_MODE); - } - - dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c); - - /* restore the DVO 2x clock state to original */ - for_each_pipe(dev_priv, pipe) { - I915_WRITE(DPLL(pipe), dpll[pipe]); - } - - intel_gmbus_force_bit(i2c, false); - - if (!dvoinit) - continue; - - port = intel_dvo_port(dvo->dvo_reg); - drm_encoder_init(&dev_priv->drm, &intel_encoder->base, - &intel_dvo_enc_funcs, encoder_type, - "DVO %c", port_name(port)); - - intel_encoder->type = INTEL_OUTPUT_DVO; - intel_encoder->power_domain = POWER_DOMAIN_PORT_OTHER; - intel_encoder->port = port; - intel_encoder->crtc_mask = (1 << 0) | (1 << 1); - - switch (dvo->type) { - case INTEL_DVO_CHIP_TMDS: - intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) | - (1 << INTEL_OUTPUT_DVO); - drm_connector_init(&dev_priv->drm, connector, - &intel_dvo_connector_funcs, - DRM_MODE_CONNECTOR_DVII); - encoder_type = DRM_MODE_ENCODER_TMDS; - break; - case INTEL_DVO_CHIP_LVDS: - intel_encoder->cloneable = 0; - drm_connector_init(&dev_priv->drm, connector, - &intel_dvo_connector_funcs, - DRM_MODE_CONNECTOR_LVDS); - encoder_type = DRM_MODE_ENCODER_LVDS; - break; - } - - drm_connector_helper_add(connector, - &intel_dvo_connector_helper_funcs); - connector->display_info.subpixel_order = SubPixelHorizontalRGB; - connector->interlace_allowed = false; - connector->doublescan_allowed = false; - - intel_connector_attach_encoder(intel_connector, intel_encoder); - if (dvo->type == INTEL_DVO_CHIP_LVDS) { - /* For our LVDS chipsets, we should hopefully be able - * to dig the fixed panel mode out of the BIOS data. - * However, it's in a different format from the BIOS - * data on chipsets with integrated LVDS (stored in AIM - * headers, likely), so for now, just get the current - * mode being output through DVO. - */ - intel_panel_init(&intel_connector->panel, - intel_dvo_get_current_mode(connector), - NULL); - intel_dvo->panel_wants_dither = true; - } - - return; - } - - kfree(intel_dvo); - kfree(intel_connector); -} |