diff options
| -rw-r--r-- | sys/dev/pci/drm/i915/dvo.h | 150 | ||||
| -rw-r--r-- | sys/dev/pci/drm/i915/intel_dvo.c | 529 |
2 files changed, 675 insertions, 4 deletions
diff --git a/sys/dev/pci/drm/i915/dvo.h b/sys/dev/pci/drm/i915/dvo.h new file mode 100644 index 00000000000..087c6de8cd7 --- /dev/null +++ b/sys/dev/pci/drm/i915/dvo.h @@ -0,0 +1,150 @@ +/* $OpenBSD$ */ +/* + * Copyright © 2006 Eric Anholt + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _INTEL_DVO_H +#define _INTEL_DVO_H + +#include <dev/i2c/i2cvar.h> +#include <dev/pci/drm/drmP.h> +#include <dev/pci/drm/drm_crtc.h> +#include "intel_drv.h" + +struct intel_dvo_device { + const char *name; + int type; + /* DVOA/B/C output register */ + u32 dvo_reg; + /* GPIO register used for i2c bus to control this device */ + u32 gpio; + int slave_addr; + + const struct intel_dvo_dev_ops *dev_ops; + void *dev_priv; + struct i2c_controller *i2c_bus; +}; + +struct intel_dvo_dev_ops { + /* + * Initialize the device at startup time. + * Returns NULL if the device does not exist. + */ + bool (*init)(struct intel_dvo_device *dvo, + struct i2c_controller *i2cbus); + + /* + * Called to allow the output a chance to create properties after the + * RandR objects have been created. + */ + void (*create_resources)(struct intel_dvo_device *dvo); + + /* + * Turn on/off output. + * + * Because none of our dvo drivers support an intermediate power levels, + * we don't expose this in the interfac. + */ + void (*dpms)(struct intel_dvo_device *dvo, bool enable); + + /* + * Callback for testing a video mode for a given output. + * + * This function should only check for cases where a mode can't + * be supported on the output specifically, and not represent + * generic CRTC limitations. + * + * \return MODE_OK if the mode is valid, or another MODE_* otherwise. + */ + int (*mode_valid)(struct intel_dvo_device *dvo, + struct drm_display_mode *mode); + + /* + * Callback to adjust the mode to be set in the CRTC. + * + * This allows an output to adjust the clock or even the entire set of + * timings, which is used for panels with fixed timings or for + * buses with clock limitations. + */ + bool (*mode_fixup)(struct intel_dvo_device *dvo, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + + /* + * Callback for preparing mode changes on an output + */ + void (*prepare)(struct intel_dvo_device *dvo); + + /* + * Callback for committing mode changes on an output + */ + void (*commit)(struct intel_dvo_device *dvo); + + /* + * Callback for setting up a video mode after fixups have been made. + * + * This is only called while the output is disabled. The dpms callback + * must be all that's necessary for the output, to turn the output on + * after this function is called. + */ + void (*mode_set)(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + + /* + * Probe for a connected output, and return detect_status. + */ + enum drm_connector_status (*detect)(struct intel_dvo_device *dvo); + + /* + * Probe the current hw status, returning true if the connected output + * is active. + */ + bool (*get_hw_state)(struct intel_dvo_device *dev); + + /** + * Query the device for the modes it provides. + * + * This function may also update MonInfo, mm_width, and mm_height. + * + * \return singly-linked list of modes or NULL if no modes found. + */ + struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo); + + /** + * Clean up driver-specific bits of the output + */ + void (*destroy) (struct intel_dvo_device *dvo); + + /** + * Debugging hook to dump device registers to log file + */ + void (*dump_regs)(struct intel_dvo_device *dvo); +}; + +extern struct intel_dvo_dev_ops sil164_ops; +extern struct intel_dvo_dev_ops ch7xxx_ops; +extern struct intel_dvo_dev_ops ivch_ops; +extern struct intel_dvo_dev_ops tfp410_ops; +extern struct intel_dvo_dev_ops ch7017_ops; +extern struct intel_dvo_dev_ops ns2501_ops; + +#endif /* _INTEL_DVO_H */ diff --git a/sys/dev/pci/drm/i915/intel_dvo.c b/sys/dev/pci/drm/i915/intel_dvo.c index fe22085e0d1..d4a24222824 100644 --- a/sys/dev/pci/drm/i915/intel_dvo.c +++ b/sys/dev/pci/drm/i915/intel_dvo.c @@ -25,16 +25,537 @@ * Authors: * Eric Anholt <eric@anholt.net> */ - #include <dev/pci/drm/drmP.h> -#include <dev/pci/drm/drm.h> #include <dev/pci/drm/drm_crtc.h> +#include "intel_drv.h" #include <dev/pci/drm/i915_drm.h> #include "i915_drv.h" -#include "intel_drv.h" +#include "dvo.h" + +struct intel_dvo *enc_to_intel_dvo(struct drm_encoder *); +struct intel_dvo *intel_attached_dvo(struct drm_connector *); +bool intel_dvo_connector_get_hw_state(struct intel_connector *); +bool intel_dvo_get_hw_state(struct intel_encoder *, enum pipe *); +void intel_disable_dvo(struct intel_encoder *); +void intel_enable_dvo(struct intel_encoder *); +void intel_dvo_dpms(struct drm_connector *, int); +int intel_dvo_mode_valid(struct drm_connector *, struct drm_display_mode *); +bool intel_dvo_mode_fixup(struct drm_encoder *, const struct drm_display_mode *, + struct drm_display_mode *); +void intel_dvo_mode_set(struct drm_encoder *, struct drm_display_mode *, + struct drm_display_mode *); +enum drm_connector_status intel_dvo_detect(struct drm_connector *, bool); +int intel_dvo_get_modes(struct drm_connector *); +void intel_dvo_destroy(struct drm_connector *); +void intel_dvo_enc_destroy(struct drm_encoder *); +struct drm_display_mode *intel_dvo_get_current_mode(struct drm_connector *); + +#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[] = { +#ifdef notyet + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "sil164", + .dvo_reg = DVOC, + .slave_addr = SIL164_ADDR, + .dev_ops = &sil164_ops, + }, + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "ch7xxx", + .dvo_reg = DVOC, + .slave_addr = CH7xxx_ADDR, + .dev_ops = &ch7xxx_ops, + }, + { + .type = INTEL_DVO_CHIP_LVDS, + .name = "ivch", + .dvo_reg = DVOA, + .slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */ + .dev_ops = &ivch_ops, + }, + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "tfp410", + .dvo_reg = DVOC, + .slave_addr = TFP410_ADDR, + .dev_ops = &tfp410_ops, + }, + { + .type = INTEL_DVO_CHIP_LVDS, + .name = "ch7017", + .dvo_reg = DVOC, + .slave_addr = 0x75, + .gpio = GMBUS_PORT_DPB, + .dev_ops = &ch7017_ops, + }, + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "ns2501", + .dvo_reg = DVOC, + .slave_addr = NS2501_ADDR, + .dev_ops = &ns2501_ops, + } +#endif +}; + +struct intel_dvo { + struct intel_encoder base; + + struct intel_dvo_device dev; + + struct drm_display_mode *panel_fixed_mode; + bool panel_wants_dither; +}; + +struct intel_dvo * +enc_to_intel_dvo(struct drm_encoder *encoder) +{ + return container_of(encoder, struct intel_dvo, base.base); +} + +struct intel_dvo * +intel_attached_dvo(struct drm_connector *connector) +{ + return container_of(intel_attached_encoder(connector), + struct intel_dvo, base); +} + +bool +intel_dvo_connector_get_hw_state(struct intel_connector *connector) +{ + struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base); + + return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev); +} + +bool +intel_dvo_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) +{ + struct drm_device *dev = encoder->base.dev; + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_dvo *intel_dvo = enc_to_intel_dvo(&encoder->base); + u32 tmp; + + tmp = I915_READ(intel_dvo->dev.dvo_reg); + + if (!(tmp & DVO_ENABLE)) + return false; + + *pipe = PORT_TO_PIPE(tmp); + + return true; +} + +void +intel_disable_dvo(struct intel_encoder *encoder) +{ + drm_i915_private_t *dev_priv = encoder->base.dev->dev_private; + struct intel_dvo *intel_dvo = enc_to_intel_dvo(&encoder->base); + u32 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); +} + +void +intel_enable_dvo(struct intel_encoder *encoder) +{ + drm_i915_private_t *dev_priv = encoder->base.dev->dev_private; + struct intel_dvo *intel_dvo = enc_to_intel_dvo(&encoder->base); + u32 dvo_reg = intel_dvo->dev.dvo_reg; + u32 temp = I915_READ(dvo_reg); + + I915_WRITE(dvo_reg, temp | DVO_ENABLE); + I915_READ(dvo_reg); + intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true); +} + +void +intel_dvo_dpms(struct drm_connector *connector, int mode) +{ + struct intel_dvo *intel_dvo = intel_attached_dvo(connector); + struct drm_crtc *crtc; + + /* dvo supports only 2 dpms states. */ + if (mode != DRM_MODE_DPMS_ON) + mode = DRM_MODE_DPMS_OFF; + + if (mode == connector->dpms) + return; + + connector->dpms = mode; + + /* Only need to change hw state when actually enabled */ + crtc = intel_dvo->base.base.crtc; + if (!crtc) { + intel_dvo->base.connectors_active = false; + return; + } + + if (mode == DRM_MODE_DPMS_ON) { + intel_dvo->base.connectors_active = true; + + intel_crtc_update_dpms(crtc); + + intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true); + } else { + intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false); + + intel_dvo->base.connectors_active = false; + + intel_crtc_update_dpms(crtc); + } + + intel_modeset_check_state(connector->dev); +} + +int +intel_dvo_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct intel_dvo *intel_dvo = intel_attached_dvo(connector); + + if (mode->flags & DRM_MODE_FLAG_DBLSCAN) + return MODE_NO_DBLESCAN; + + /* XXX: Validate clock range */ + + if (intel_dvo->panel_fixed_mode) { + if (mode->hdisplay > intel_dvo->panel_fixed_mode->hdisplay) + return MODE_PANEL; + if (mode->vdisplay > intel_dvo->panel_fixed_mode->vdisplay) + return MODE_PANEL; + } + + return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode); +} + +bool +intel_dvo_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct intel_dvo *intel_dvo = enc_to_intel_dvo(encoder); + + /* 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 (intel_dvo->panel_fixed_mode != NULL) { +#define C(x) adjusted_mode->x = intel_dvo->panel_fixed_mode->x + C(hdisplay); + C(hsync_start); + C(hsync_end); + C(htotal); + C(vdisplay); + C(vsync_start); + C(vsync_end); + C(vtotal); + C(clock); +#undef C + } + + if (intel_dvo->dev.dev_ops->mode_fixup) + return intel_dvo->dev.dev_ops->mode_fixup(&intel_dvo->dev, mode, adjusted_mode); + + return true; +} + +void +intel_dvo_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *dev = encoder->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc); + struct intel_dvo *intel_dvo = enc_to_intel_dvo(encoder); + int pipe = intel_crtc->pipe; + u32 dvo_val; + u32 dvo_reg = intel_dvo->dev.dvo_reg, dvo_srcdim_reg; + int dpll_reg = DPLL(pipe); + + switch (dvo_reg) { + case DVOA: + default: + dvo_srcdim_reg = DVOA_SRCDIM; + break; + case DVOB: + dvo_srcdim_reg = DVOB_SRCDIM; + break; + case DVOC: + dvo_srcdim_reg = DVOC_SRCDIM; + break; + } + + intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev, mode, adjusted_mode); + + /* 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(dpll_reg, I915_READ(dpll_reg) | DPLL_DVO_HIGH_SPEED); + + /*I915_WRITE(DVOB_SRCDIM, + (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | + (adjusted_mode->VDisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/ + I915_WRITE(dvo_srcdim_reg, + (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | + (adjusted_mode->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. + */ +enum drm_connector_status +intel_dvo_detect(struct drm_connector *connector, bool force) +{ + struct intel_dvo *intel_dvo = intel_attached_dvo(connector); + return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev); +} + +int +intel_dvo_get_modes(struct drm_connector *connector) +{ + struct intel_dvo *intel_dvo = intel_attached_dvo(connector); + drm_i915_private_t *dev_priv = connector->dev->dev_private; + + /* 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_PORT_DPC)); + if (!list_empty(&connector->probed_modes)) + return 1; + + if (intel_dvo->panel_fixed_mode != NULL) { + struct drm_display_mode *mode; + mode = drm_mode_duplicate(connector->dev, intel_dvo->panel_fixed_mode); + if (mode) { + drm_mode_probed_add(connector, mode); + return 1; + } + } + + return 0; +} + +void +intel_dvo_destroy(struct drm_connector *connector) +{ +#if 0 + drm_sysfs_connector_remove(connector); +#endif + drm_connector_cleanup(connector); + free(connector, M_DRM); +} + +static const struct drm_encoder_helper_funcs intel_dvo_helper_funcs = { + .mode_fixup = intel_dvo_mode_fixup, + .mode_set = intel_dvo_mode_set, + .disable = intel_encoder_noop, +}; + +static const struct drm_connector_funcs intel_dvo_connector_funcs = { + .dpms = intel_dvo_dpms, + .detect = intel_dvo_detect, + .destroy = intel_dvo_destroy, + .fill_modes = drm_helper_probe_single_connector_modes, +}; + +static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = { + .mode_valid = intel_dvo_mode_valid, + .get_modes = intel_dvo_get_modes, + .best_encoder = intel_best_encoder, +}; + +void +intel_dvo_enc_destroy(struct drm_encoder *encoder) +{ + struct intel_dvo *intel_dvo = enc_to_intel_dvo(encoder); + + if (intel_dvo->dev.dev_ops->destroy) + intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev); + + free(intel_dvo->panel_fixed_mode, M_DRM); + + 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. + */ +struct drm_display_mode * +intel_dvo_get_current_mode(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + 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 drm_crtc *crtc; + int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0; + + crtc = intel_get_crtc_for_pipe(dev, pipe); + if (crtc) { + mode = intel_crtc_mode_get(dev, crtc); + 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; +} void intel_dvo_init(struct drm_device *dev) { - printf("%s stub\n", __func__); + drm_i915_private_t *dev_priv = dev->dev_private; + 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 = malloc(sizeof(struct intel_dvo), M_DRM, M_WAITOK | M_ZERO); + if (!intel_dvo) + return; + + intel_connector = malloc(sizeof(struct intel_connector), M_DRM, + M_WAITOK | M_ZERO); + if (!intel_connector) { + free(intel_dvo, M_DRM); + return; + } + + intel_encoder = &intel_dvo->base; + drm_encoder_init(dev, &intel_encoder->base, + &intel_dvo_enc_funcs, encoder_type); + + intel_encoder->disable = intel_disable_dvo; + intel_encoder->enable = intel_enable_dvo; + intel_encoder->get_hw_state = intel_dvo_get_hw_state; + 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_controller *i2c; + int gpio; + + /* 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_port_valid(dvo->gpio)) + gpio = dvo->gpio; + else if (dvo->type == INTEL_DVO_CHIP_LVDS) + gpio = GMBUS_PORT_SSC; + else + gpio = GMBUS_PORT_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; + if (!dvo->dev_ops->init(&intel_dvo->dev, i2c)) + continue; + + intel_encoder->type = INTEL_OUTPUT_DVO; + intel_encoder->crtc_mask = (1 << 0) | (1 << 1); + switch (dvo->type) { + case INTEL_DVO_CHIP_TMDS: + intel_encoder->cloneable = true; + drm_connector_init(dev, connector, + &intel_dvo_connector_funcs, + DRM_MODE_CONNECTOR_DVII); + encoder_type = DRM_MODE_ENCODER_TMDS; + break; + case INTEL_DVO_CHIP_LVDS: + intel_encoder->cloneable = false; + drm_connector_init(dev, 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; + + drm_encoder_helper_add(&intel_encoder->base, + &intel_dvo_helper_funcs); + + 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_dvo->panel_fixed_mode = + intel_dvo_get_current_mode(connector); + intel_dvo->panel_wants_dither = true; + } + +#if 0 + drm_sysfs_connector_add(connector); +#endif + return; + } + + drm_encoder_cleanup(&intel_encoder->base); + free(intel_dvo, M_DRM); + free(intel_connector, M_DRM); } |