diff options
Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_drm_vidi.c')
| -rw-r--r-- | drivers/gpu/drm/exynos_tmp/exynos_drm_vidi.c | 680 |
1 files changed, 0 insertions, 680 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_drm_vidi.c b/drivers/gpu/drm/exynos_tmp/exynos_drm_vidi.c deleted file mode 100644 index 876e460..0000000 --- a/drivers/gpu/drm/exynos_tmp/exynos_drm_vidi.c +++ /dev/null @@ -1,680 +0,0 @@ -/* exynos_drm_vidi.c - * - * Copyright (C) 2012 Samsung Electronics Co.Ltd - * Authors: - * Inki Dae <inki.dae@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/module.h> -#include <linux/platform_device.h> - -#include <drm/exynos_drm.h> - -#include "drm_edid.h" -#include "drm_crtc_helper.h" - -#include "exynos_drm_drv.h" -#include "exynos_drm_crtc.h" -#include "exynos_drm_encoder.h" - -/* vidi has totally three virtual windows. */ -#define WINDOWS_NR 3 - -#define get_vidi_context(dev) platform_get_drvdata(to_platform_device(dev)) - -struct vidi_win_data { - unsigned int offset_x; - unsigned int offset_y; - unsigned int ovl_width; - unsigned int ovl_height; - unsigned int fb_width; - unsigned int fb_height; - unsigned int bpp; - dma_addr_t dma_addr; - void __iomem *vaddr; - unsigned int buf_offsize; - unsigned int line_size; /* bytes */ - bool enabled; -}; - -struct vidi_context { - struct exynos_drm_subdrv subdrv; - struct drm_crtc *crtc; - struct vidi_win_data win_data[WINDOWS_NR]; - struct edid *raw_edid; - unsigned int clkdiv; - unsigned int default_win; - unsigned long irq_flags; - unsigned int connected; - bool vblank_on; - bool suspended; - struct work_struct work; - struct mutex lock; -}; - -static const char fake_edid_info[] = { - 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05, - 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78, - 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd, - 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, - 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, - 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00, - 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, - 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, - 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47, - 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1, - 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83, - 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00, - 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c, - 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a, - 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00, - 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, - 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x06 -}; - -static void vidi_fake_vblank_handler(struct work_struct *work); - -static bool vidi_display_is_connected(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* - * connection request would come from user side - * to do hotplug through specific ioctl. - */ - return ctx->connected ? true : false; -} - -static int vidi_get_edid(struct device *dev, struct drm_connector *connector, - u8 *edid, int len) -{ - struct vidi_context *ctx = get_vidi_context(dev); - struct edid *raw_edid; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* - * the edid data comes from user side and it would be set - * to ctx->raw_edid through specific ioctl. - */ - if (!ctx->raw_edid) { - DRM_DEBUG_KMS("raw_edid is null.\n"); - return -EFAULT; - } - - raw_edid = kzalloc(len, GFP_KERNEL); - if (!raw_edid) { - DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); - return -ENOMEM; - } - - memcpy(raw_edid, ctx->raw_edid, min((1 + ctx->raw_edid->extensions) - * EDID_LENGTH, len)); - - /* attach the edid data to connector. */ - connector->display_info.raw_edid = (char *)raw_edid; - - memcpy(edid, ctx->raw_edid, min((1 + ctx->raw_edid->extensions) - * EDID_LENGTH, len)); - - return 0; -} - -static void *vidi_get_panel(struct device *dev) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* TODO. */ - - return NULL; -} - -static int vidi_check_timing(struct device *dev, void *timing) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* TODO. */ - - return 0; -} - -static int vidi_display_power_on(struct device *dev, int mode) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* TODO */ - - return 0; -} - -static struct exynos_drm_display_ops vidi_display_ops = { - .type = EXYNOS_DISPLAY_TYPE_VIDI, - .is_connected = vidi_display_is_connected, - .get_edid = vidi_get_edid, - .get_panel = vidi_get_panel, - .check_timing = vidi_check_timing, - .power_on = vidi_display_power_on, -}; - -static void vidi_dpms(struct device *subdrv_dev, int mode) -{ - struct vidi_context *ctx = get_vidi_context(subdrv_dev); - - DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode); - - mutex_lock(&ctx->lock); - - switch (mode) { - case DRM_MODE_DPMS_ON: - /* TODO. */ - break; - case DRM_MODE_DPMS_STANDBY: - case DRM_MODE_DPMS_SUSPEND: - case DRM_MODE_DPMS_OFF: - /* TODO. */ - break; - default: - DRM_DEBUG_KMS("unspecified mode %d\n", mode); - break; - } - - mutex_unlock(&ctx->lock); -} - -static void vidi_apply(struct device *subdrv_dev) -{ - struct vidi_context *ctx = get_vidi_context(subdrv_dev); - struct exynos_drm_manager *mgr = ctx->subdrv.manager; - struct exynos_drm_manager_ops *mgr_ops = mgr->ops; - struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops; - struct vidi_win_data *win_data; - int i; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - for (i = 0; i < WINDOWS_NR; i++) { - win_data = &ctx->win_data[i]; - if (win_data->enabled && (ovl_ops && ovl_ops->commit)) - ovl_ops->commit(subdrv_dev, i); - } - - if (mgr_ops && mgr_ops->commit) - mgr_ops->commit(subdrv_dev); -} - -static void vidi_commit(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (ctx->suspended) - return; -} - -static int vidi_enable_vblank(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (ctx->suspended) - return -EPERM; - - if (!test_and_set_bit(0, &ctx->irq_flags)) - ctx->vblank_on = true; - - return 0; -} - -static void vidi_disable_vblank(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (ctx->suspended) - return; - - if (test_and_clear_bit(0, &ctx->irq_flags)) - ctx->vblank_on = false; -} - -static struct exynos_drm_manager_ops vidi_manager_ops = { - .dpms = vidi_dpms, - .apply = vidi_apply, - .commit = vidi_commit, - .enable_vblank = vidi_enable_vblank, - .disable_vblank = vidi_disable_vblank, -}; - -static void vidi_win_mode_set(struct device *dev, - struct exynos_drm_overlay *overlay) -{ - struct vidi_context *ctx = get_vidi_context(dev); - struct vidi_win_data *win_data; - int win; - unsigned long offset; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (!overlay) { - dev_err(dev, "overlay is NULL\n"); - return; - } - - win = overlay->zpos; - if (win == DEFAULT_ZPOS) - win = ctx->default_win; - - if (win < 0 || win > WINDOWS_NR) - return; - - offset = overlay->fb_x * (overlay->bpp >> 3); - offset += overlay->fb_y * overlay->pitch; - - DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch); - - win_data = &ctx->win_data[win]; - - win_data->offset_x = overlay->crtc_x; - win_data->offset_y = overlay->crtc_y; - win_data->ovl_width = overlay->crtc_width; - win_data->ovl_height = overlay->crtc_height; - win_data->fb_width = overlay->fb_width; - win_data->fb_height = overlay->fb_height; - win_data->dma_addr = overlay->dma_addr[0] + offset; - win_data->vaddr = overlay->vaddr[0] + offset; - win_data->bpp = overlay->bpp; - win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) * - (overlay->bpp >> 3); - win_data->line_size = overlay->crtc_width * (overlay->bpp >> 3); - - /* - * some parts of win_data should be transferred to user side - * through specific ioctl. - */ - - DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n", - win_data->offset_x, win_data->offset_y); - DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", - win_data->ovl_width, win_data->ovl_height); - DRM_DEBUG_KMS("paddr = 0x%lx, vaddr = 0x%lx\n", - (unsigned long)win_data->dma_addr, - (unsigned long)win_data->vaddr); - DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", - overlay->fb_width, overlay->crtc_width); -} - -static void vidi_win_commit(struct device *dev, int zpos) -{ - struct vidi_context *ctx = get_vidi_context(dev); - struct vidi_win_data *win_data; - int win = zpos; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (ctx->suspended) - return; - - if (win == DEFAULT_ZPOS) - win = ctx->default_win; - - if (win < 0 || win > WINDOWS_NR) - return; - - win_data = &ctx->win_data[win]; - - win_data->enabled = true; - - DRM_DEBUG_KMS("dma_addr = 0x%x\n", win_data->dma_addr); - - if (ctx->vblank_on) - schedule_work(&ctx->work); -} - -static void vidi_win_disable(struct device *dev, int zpos) -{ - struct vidi_context *ctx = get_vidi_context(dev); - struct vidi_win_data *win_data; - int win = zpos; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (win == DEFAULT_ZPOS) - win = ctx->default_win; - - if (win < 0 || win > WINDOWS_NR) - return; - - win_data = &ctx->win_data[win]; - win_data->enabled = false; - - /* TODO. */ -} - -static struct exynos_drm_overlay_ops vidi_overlay_ops = { - .mode_set = vidi_win_mode_set, - .commit = vidi_win_commit, - .disable = vidi_win_disable, -}; - -static struct exynos_drm_manager vidi_manager = { - .pipe = -1, - .ops = &vidi_manager_ops, - .overlay_ops = &vidi_overlay_ops, - .display_ops = &vidi_display_ops, -}; - -static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc) -{ - struct exynos_drm_private *dev_priv = drm_dev->dev_private; - struct drm_pending_vblank_event *e, *t; - struct timeval now; - unsigned long flags; - bool is_checked = false; - - spin_lock_irqsave(&drm_dev->event_lock, flags); - - list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list, - base.link) { - /* if event's pipe isn't same as crtc then ignore it. */ - if (crtc != e->pipe) - continue; - - is_checked = true; - - do_gettimeofday(&now); - e->event.sequence = 0; - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - - list_move_tail(&e->base.link, &e->base.file_priv->event_list); - wake_up_interruptible(&e->base.file_priv->event_wait); - } - - if (is_checked) { - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - /* - * don't off vblank if vblank_disable_allowed is 1, - * because vblank would be off by timer handler. - */ - if (!drm_dev->vblank_disable_allowed) - drm_vblank_off(drm_dev, crtc); - } - - spin_unlock_irqrestore(&drm_dev->event_lock, flags); -} - -static void vidi_fake_vblank_handler(struct work_struct *work) -{ - struct vidi_context *ctx = container_of(work, struct vidi_context, - work); - struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct exynos_drm_manager *manager = subdrv->manager; - - if (manager->pipe < 0) - return; - - /* FIXME!!! */ - msleep(20); - - drm_handle_vblank(subdrv->drm_dev, manager->pipe); - vidi_finish_pageflip(subdrv->drm_dev, manager->pipe); -} - -static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* - * enable drm irq mode. - * - with irq_enabled = 1, we can use the vblank feature. - * - * P.S. note that we wouldn't use drm irq handler but - * just specific driver own one instead because - * drm framework supports only one irq handler. - */ - drm_dev->irq_enabled = 1; - - /* - * with vblank_disable_allowed = 1, vblank interrupt will be disabled - * by drm timer once a current process gives up ownership of - * vblank event.(after drm_vblank_put function is called) - */ - drm_dev->vblank_disable_allowed = 1; - - return 0; -} - -static void vidi_subdrv_remove(struct drm_device *drm_dev) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* TODO. */ -} - -static int vidi_power_on(struct vidi_context *ctx, bool enable) -{ - struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct device *dev = subdrv->dev; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (enable != false && enable != true) - return -EINVAL; - - if (enable) { - ctx->suspended = false; - - /* if vblank was enabled status, enable it again. */ - if (test_and_clear_bit(0, &ctx->irq_flags)) - vidi_enable_vblank(dev); - - vidi_apply(dev); - } else { - ctx->suspended = true; - } - - return 0; -} - -static int vidi_show_connection(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int rc; - struct vidi_context *ctx = get_vidi_context(dev); - - mutex_lock(&ctx->lock); - - rc = sprintf(buf, "%d\n", ctx->connected); - - mutex_unlock(&ctx->lock); - - return rc; -} - -static int vidi_store_connection(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct vidi_context *ctx = get_vidi_context(dev); - int ret; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - ret = kstrtoint(buf, 0, &ctx->connected); - if (ret) - return ret; - - if (ctx->connected > 1) - return -EINVAL; - - DRM_DEBUG_KMS("requested connection.\n"); - - drm_helper_hpd_irq_event(ctx->subdrv.drm_dev); - - return len; -} - -static DEVICE_ATTR(connection, 0644, vidi_show_connection, - vidi_store_connection); - -int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, - struct drm_file *file_priv) -{ - struct vidi_context *ctx = NULL; - struct drm_encoder *encoder; - struct exynos_drm_manager *manager; - struct exynos_drm_display_ops *display_ops; - struct drm_exynos_vidi_connection *vidi = data; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (!vidi) { - DRM_DEBUG_KMS("user data for vidi is null.\n"); - return -EINVAL; - } - - if (!vidi->edid) { - DRM_DEBUG_KMS("edid data is null.\n"); - return -EINVAL; - } - - if (vidi->connection > 1) { - DRM_DEBUG_KMS("connection should be 0 or 1.\n"); - return -EINVAL; - } - - list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list, - head) { - manager = exynos_drm_get_manager(encoder); - display_ops = manager->display_ops; - - if (display_ops->type == EXYNOS_DISPLAY_TYPE_VIDI) { - ctx = get_vidi_context(manager->dev); - break; - } - } - - if (!ctx) { - DRM_DEBUG_KMS("not found virtual device type encoder.\n"); - return -EINVAL; - } - - if (ctx->connected == vidi->connection) { - DRM_DEBUG_KMS("same connection request.\n"); - return -EINVAL; - } - - if (vidi->connection) - ctx->raw_edid = (struct edid *)vidi->edid; - - ctx->connected = vidi->connection; - drm_helper_hpd_irq_event(ctx->subdrv.drm_dev); - - return 0; -} - -static int __devinit vidi_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct vidi_context *ctx; - struct exynos_drm_subdrv *subdrv; - int ret; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return -ENOMEM; - - ctx->default_win = 0; - - INIT_WORK(&ctx->work, vidi_fake_vblank_handler); - - /* for test */ - ctx->raw_edid = (struct edid *)fake_edid_info; - - subdrv = &ctx->subdrv; - subdrv->dev = dev; - subdrv->manager = &vidi_manager; - subdrv->probe = vidi_subdrv_probe; - subdrv->remove = vidi_subdrv_remove; - - mutex_init(&ctx->lock); - - platform_set_drvdata(pdev, ctx); - - ret = device_create_file(&pdev->dev, &dev_attr_connection); - if (ret < 0) - DRM_INFO("failed to create connection sysfs.\n"); - - exynos_drm_subdrv_register(subdrv); - - return 0; -} - -static int __devexit vidi_remove(struct platform_device *pdev) -{ - struct vidi_context *ctx = platform_get_drvdata(pdev); - - DRM_DEBUG_KMS("%s\n", __FILE__); - - exynos_drm_subdrv_unregister(&ctx->subdrv); - - kfree(ctx); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int vidi_suspend(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - return vidi_power_on(ctx, false); -} - -static int vidi_resume(struct device *dev) -{ - struct vidi_context *ctx = get_vidi_context(dev); - - return vidi_power_on(ctx, true); -} -#endif - -static const struct dev_pm_ops vidi_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(vidi_suspend, vidi_resume) -}; - -struct platform_driver vidi_driver = { - .probe = vidi_probe, - .remove = __devexit_p(vidi_remove), - .driver = { - .name = "exynos-drm-vidi", - .owner = THIS_MODULE, - .pm = &vidi_pm_ops, - }, -}; |