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author | codeworkx <daniel.hillenbrand@codeworkx.de> | 2012-06-02 13:09:29 +0200 |
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committer | codeworkx <daniel.hillenbrand@codeworkx.de> | 2012-06-02 13:09:29 +0200 |
commit | c6da2cfeb05178a11c6d062a06f8078150ee492f (patch) | |
tree | f3b4021d252c52d6463a9b3c1bb7245e399b009c /drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c | |
parent | c6d7c4dbff353eac7919342ae6b3299a378160a6 (diff) | |
download | kernel_samsung_smdk4412-c6da2cfeb05178a11c6d062a06f8078150ee492f.zip kernel_samsung_smdk4412-c6da2cfeb05178a11c6d062a06f8078150ee492f.tar.gz kernel_samsung_smdk4412-c6da2cfeb05178a11c6d062a06f8078150ee492f.tar.bz2 |
samsung update 1
Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c')
-rw-r--r-- | drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c new file mode 100644 index 0000000..5d9d2c2 --- /dev/null +++ b/drivers/gpu/drm/exynos_tmp/exynos_drm_hdmi.c @@ -0,0 +1,386 @@ +/* + * Copyright (C) 2011 Samsung Electronics Co.Ltd + * Authors: + * Inki Dae <inki.dae@samsung.com> + * Seung-Woo Kim <sw0312.kim@samsung.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include "drmP.h" + +#include <linux/kernel.h> +#include <linux/wait.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> + +#include <drm/exynos_drm.h> + +#include "exynos_drm_drv.h" +#include "exynos_drm_hdmi.h" + +#define to_context(dev) platform_get_drvdata(to_platform_device(dev)) +#define to_subdrv(dev) to_context(dev) +#define get_ctx_from_subdrv(subdrv) container_of(subdrv,\ + struct drm_hdmi_context, subdrv); + +/* these callback points shoud be set by specific drivers. */ +static struct exynos_hdmi_ops *hdmi_ops; +static struct exynos_mixer_ops *mixer_ops; + +struct drm_hdmi_context { + struct exynos_drm_subdrv subdrv; + struct exynos_drm_hdmi_context *hdmi_ctx; + struct exynos_drm_hdmi_context *mixer_ctx; + + bool enabled[MIXER_WIN_NR]; +}; + +void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (ops) + hdmi_ops = ops; +} + +void exynos_mixer_ops_register(struct exynos_mixer_ops *ops) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (ops) + mixer_ops = ops; +} + +static bool drm_hdmi_is_connected(struct device *dev) +{ + struct drm_hdmi_context *ctx = to_context(dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->is_connected) + return hdmi_ops->is_connected(ctx->hdmi_ctx->ctx); + + return false; +} + +static int drm_hdmi_get_edid(struct device *dev, + struct drm_connector *connector, u8 *edid, int len) +{ + struct drm_hdmi_context *ctx = to_context(dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->get_edid) + return hdmi_ops->get_edid(ctx->hdmi_ctx->ctx, connector, edid, + len); + + return 0; +} + +static int drm_hdmi_check_timing(struct device *dev, void *timing) +{ + struct drm_hdmi_context *ctx = to_context(dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->check_timing) + return hdmi_ops->check_timing(ctx->hdmi_ctx->ctx, timing); + + return 0; +} + +static int drm_hdmi_power_on(struct device *dev, int mode) +{ + struct drm_hdmi_context *ctx = to_context(dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->power_on) + return hdmi_ops->power_on(ctx->hdmi_ctx->ctx, mode); + + return 0; +} + +static struct exynos_drm_display_ops drm_hdmi_display_ops = { + .type = EXYNOS_DISPLAY_TYPE_HDMI, + .is_connected = drm_hdmi_is_connected, + .get_edid = drm_hdmi_get_edid, + .check_timing = drm_hdmi_check_timing, + .power_on = drm_hdmi_power_on, +}; + +static int drm_hdmi_enable_vblank(struct device *subdrv_dev) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + struct exynos_drm_subdrv *subdrv = &ctx->subdrv; + struct exynos_drm_manager *manager = subdrv->manager; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (mixer_ops && mixer_ops->enable_vblank) + return mixer_ops->enable_vblank(ctx->mixer_ctx->ctx, + manager->pipe); + + return 0; +} + +static void drm_hdmi_disable_vblank(struct device *subdrv_dev) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (mixer_ops && mixer_ops->disable_vblank) + return mixer_ops->disable_vblank(ctx->mixer_ctx->ctx); +} + +static void drm_hdmi_mode_fixup(struct device *subdrv_dev, + struct drm_connector *connector, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->mode_fixup) + hdmi_ops->mode_fixup(ctx->hdmi_ctx->ctx, connector, mode, + adjusted_mode); +} + +static void drm_hdmi_mode_set(struct device *subdrv_dev, void *mode) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->mode_set) + hdmi_ops->mode_set(ctx->hdmi_ctx->ctx, mode); +} + +static void drm_hdmi_get_max_resol(struct device *subdrv_dev, + unsigned int *width, unsigned int *height) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->get_max_resol) + hdmi_ops->get_max_resol(ctx->hdmi_ctx->ctx, width, height); +} + +static void drm_hdmi_commit(struct device *subdrv_dev) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (hdmi_ops && hdmi_ops->commit) + hdmi_ops->commit(ctx->hdmi_ctx->ctx); +} + +static void drm_hdmi_dpms(struct device *subdrv_dev, int mode) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (mixer_ops && mixer_ops->dpms) + mixer_ops->dpms(ctx->mixer_ctx->ctx, mode); + + if (hdmi_ops && hdmi_ops->dpms) + hdmi_ops->dpms(ctx->hdmi_ctx->ctx, mode); +} + +static void drm_hdmi_apply(struct device *subdrv_dev) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + int i; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + for (i = 0; i < MIXER_WIN_NR; i++) { + if (!ctx->enabled[i]) + continue; + if (mixer_ops && mixer_ops->win_commit) + mixer_ops->win_commit(ctx->mixer_ctx->ctx, i); + } + + if (hdmi_ops && hdmi_ops->commit) + hdmi_ops->commit(ctx->hdmi_ctx->ctx); +} + +static struct exynos_drm_manager_ops drm_hdmi_manager_ops = { + .dpms = drm_hdmi_dpms, + .apply = drm_hdmi_apply, + .enable_vblank = drm_hdmi_enable_vblank, + .disable_vblank = drm_hdmi_disable_vblank, + .mode_fixup = drm_hdmi_mode_fixup, + .mode_set = drm_hdmi_mode_set, + .get_max_resol = drm_hdmi_get_max_resol, + .commit = drm_hdmi_commit, +}; + +static void drm_mixer_mode_set(struct device *subdrv_dev, + struct exynos_drm_overlay *overlay) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (mixer_ops && mixer_ops->win_mode_set) + mixer_ops->win_mode_set(ctx->mixer_ctx->ctx, overlay); +} + +static void drm_mixer_commit(struct device *subdrv_dev, int zpos) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (win < 0 || win > MIXER_WIN_NR) { + DRM_ERROR("mixer window[%d] is wrong\n", win); + return; + } + + if (mixer_ops && mixer_ops->win_commit) + mixer_ops->win_commit(ctx->mixer_ctx->ctx, win); + + ctx->enabled[win] = true; +} + +static void drm_mixer_disable(struct device *subdrv_dev, int zpos) +{ + struct drm_hdmi_context *ctx = to_context(subdrv_dev); + int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (win < 0 || win > MIXER_WIN_NR) { + DRM_ERROR("mixer window[%d] is wrong\n", win); + return; + } + + if (mixer_ops && mixer_ops->win_disable) + mixer_ops->win_disable(ctx->mixer_ctx->ctx, win); + + ctx->enabled[win] = false; +} + +static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = { + .mode_set = drm_mixer_mode_set, + .commit = drm_mixer_commit, + .disable = drm_mixer_disable, +}; + +static struct exynos_drm_manager hdmi_manager = { + .pipe = -1, + .ops = &drm_hdmi_manager_ops, + .overlay_ops = &drm_hdmi_overlay_ops, + .display_ops = &drm_hdmi_display_ops, +}; + +static int hdmi_subdrv_probe(struct drm_device *drm_dev, + struct device *dev) +{ + struct exynos_drm_subdrv *subdrv = to_subdrv(dev); + struct drm_hdmi_context *ctx; + struct platform_device *pdev = to_platform_device(dev); + struct exynos_drm_common_hdmi_pd *pd; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + pd = pdev->dev.platform_data; + + if (!pd) { + DRM_DEBUG_KMS("platform data is null.\n"); + return -EFAULT; + } + + if (!pd->hdmi_dev) { + DRM_DEBUG_KMS("hdmi device is null.\n"); + return -EFAULT; + } + + if (!pd->mixer_dev) { + DRM_DEBUG_KMS("mixer device is null.\n"); + return -EFAULT; + } + + ctx = get_ctx_from_subdrv(subdrv); + + ctx->hdmi_ctx = (struct exynos_drm_hdmi_context *) + to_context(pd->hdmi_dev); + if (!ctx->hdmi_ctx) { + DRM_DEBUG_KMS("hdmi context is null.\n"); + return -EFAULT; + } + + ctx->hdmi_ctx->drm_dev = drm_dev; + + ctx->mixer_ctx = (struct exynos_drm_hdmi_context *) + to_context(pd->mixer_dev); + if (!ctx->mixer_ctx) { + DRM_DEBUG_KMS("mixer context is null.\n"); + return -EFAULT; + } + + ctx->mixer_ctx->drm_dev = drm_dev; + + return 0; +} + +static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct exynos_drm_subdrv *subdrv; + struct drm_hdmi_context *ctx; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) { + DRM_LOG_KMS("failed to alloc common hdmi context.\n"); + return -ENOMEM; + } + + subdrv = &ctx->subdrv; + + subdrv->dev = dev; + subdrv->manager = &hdmi_manager; + subdrv->probe = hdmi_subdrv_probe; + + platform_set_drvdata(pdev, subdrv); + + exynos_drm_subdrv_register(subdrv); + + return 0; +} + +static int __devexit exynos_drm_hdmi_remove(struct platform_device *pdev) +{ + struct drm_hdmi_context *ctx = platform_get_drvdata(pdev); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + exynos_drm_subdrv_unregister(&ctx->subdrv); + kfree(ctx); + + return 0; +} + +struct platform_driver exynos_drm_common_hdmi_driver = { + .probe = exynos_drm_hdmi_probe, + .remove = __devexit_p(exynos_drm_hdmi_remove), + .driver = { + .name = "exynos-drm-hdmi", + .owner = THIS_MODULE, + }, +}; |