mdfld_tpo_vid.c

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/*
 * Copyright © 2010 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:
 * jim liu <[email protected]>
 * Jackie Li<[email protected]>
 */

#include "mdfld_dsi_dpi.h"

static struct drm_display_mode *tpo_vid_get_config_mode(struct drm_device *dev)
{
    struct drm_display_mode *mode;
    struct drm_psb_private *dev_priv = dev->dev_private;
    struct oaktrail_timing_info *ti = &dev_priv->gct_data.DTD;
    bool use_gct = false;

    mode = kzalloc(sizeof(*mode), GFP_KERNEL);
    if (!mode)
        return NULL;

    if (use_gct) {
        mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
        mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
        mode->hsync_start = mode->hdisplay +
                ((ti->hsync_offset_hi << 8) |
                ti->hsync_offset_lo);
        mode->hsync_end = mode->hsync_start +
                ((ti->hsync_pulse_width_hi << 8) |
                ti->hsync_pulse_width_lo);
        mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) |
                                ti->hblank_lo);
        mode->vsync_start =
            mode->vdisplay + ((ti->vsync_offset_hi << 8) |
                        ti->vsync_offset_lo);
        mode->vsync_end =
            mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) |
                        ti->vsync_pulse_width_lo);
        mode->vtotal = mode->vdisplay +
                ((ti->vblank_hi << 8) | ti->vblank_lo);
        mode->clock = ti->pixel_clock * 10;

        dev_dbg(dev->dev, "hdisplay is %d\n", mode->hdisplay);
        dev_dbg(dev->dev, "vdisplay is %d\n", mode->vdisplay);
        dev_dbg(dev->dev, "HSS is %d\n", mode->hsync_start);
        dev_dbg(dev->dev, "HSE is %d\n", mode->hsync_end);
        dev_dbg(dev->dev, "htotal is %d\n", mode->htotal);
        dev_dbg(dev->dev, "VSS is %d\n", mode->vsync_start);
        dev_dbg(dev->dev, "VSE is %d\n", mode->vsync_end);
        dev_dbg(dev->dev, "vtotal is %d\n", mode->vtotal);
        dev_dbg(dev->dev, "clock is %d\n", mode->clock);
    } else {
        mode->hdisplay = 864;
        mode->vdisplay = 480;
        mode->hsync_start = 873;
        mode->hsync_end = 876;
        mode->htotal = 887;
        mode->vsync_start = 487;
        mode->vsync_end = 490;
        mode->vtotal = 499;
        mode->clock = 33264;
    }

    drm_mode_set_name(mode);
    drm_mode_set_crtcinfo(mode, 0);

    mode->type |= DRM_MODE_TYPE_PREFERRED;

    return mode;
}

static int tpo_vid_get_panel_info(struct drm_device *dev,
                int pipe,
                struct panel_info *pi)
{
    if (!dev || !pi)
        return -EINVAL;

    pi->width_mm = TPO_PANEL_WIDTH;
    pi->height_mm = TPO_PANEL_HEIGHT;

    return 0;
}

/*TPO DPI encoder helper funcs*/
static const struct drm_encoder_helper_funcs
                mdfld_tpo_dpi_encoder_helper_funcs = {
    .dpms = mdfld_dsi_dpi_dpms,
    .mode_fixup = mdfld_dsi_dpi_mode_fixup,
    .prepare = mdfld_dsi_dpi_prepare,
    .mode_set = mdfld_dsi_dpi_mode_set,
    .commit = mdfld_dsi_dpi_commit,
};

/*TPO DPI encoder funcs*/
static const struct drm_encoder_funcs mdfld_tpo_dpi_encoder_funcs = {
    .destroy = drm_encoder_cleanup,
};

const struct panel_funcs mdfld_tpo_vid_funcs = {
    .encoder_funcs = &mdfld_tpo_dpi_encoder_funcs,
    .encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs,
    .get_config_mode = &tpo_vid_get_config_mode,
    .get_panel_info = tpo_vid_get_panel_info,
};