exynos_drm_vidi.rar_VIDI

/* 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 <drm/drmP.h> #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/component.h> #include <drm/exynos_drm.h> #include <drm/drm_edid.h> #include <drm/drm_crtc_helper.h> #include "exynos_drm_drv.h" #include "exynos_drm_crtc.h" #include "exynos_drm_encoder.h" #include "exynos_drm_vidi.h" /* vidi has totally three virtual windows. */ #define WINDOWS_NR 3 #define ctx_from_connector(c) container_of(c, struct vidi_context, \ connector) 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; unsigned int buf_offsize; unsigned int line_size; /* bytes */ bool enabled; }; struct vidi_context { struct exynos_drm_manager manager; struct exynos_drm_display display; struct platform_device *pdev; struct drm_device *drm_dev; struct drm_crtc *crtc; struct drm_encoder *encoder; struct drm_connector connector; 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; bool direct_vblank; struct work_struct work; struct mutex lock; int pipe; }; static inline struct vidi_context *manager_to_vidi(struct exynos_drm_manager *m) { return container_of(m, struct vidi_context, manager); } static inline struct vidi_context *display_to_vidi(struct exynos_drm_display *d) { return container_of(d, struct vidi_context, display); } 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_apply(struct exynos_drm_manager *mgr) { struct vidi_context *ctx = manager_to_vidi(mgr); struct exynos_drm_manager_ops *mgr_ops = mgr->ops; struct vidi_win_data *win_data; int i; for (i = 0; i < WINDOWS_NR; i++) { win_data = &ctx->win_data[i]; if (win_data->enabled && (mgr_ops && mgr_ops->win_commit)) mgr_ops->win_commit(mgr, i); } if (mgr_ops && mgr_ops->commit) mgr_ops->commit(mgr); } static void vidi_commit(struct exynos_drm_manager *mgr) { struct vidi_context *ctx = manager_to_vidi(mgr); if (ctx->suspended) return; } static int vidi_enable_vblank(struct exynos_drm_manager *mgr) { struct vidi_context *ctx = manager_to_vidi(mgr); if (ctx->suspended) return -EPERM; if (!test_and_set_bit(0, &ctx->irq_flags)) ctx->vblank_on = true; ctx->direct_vblank = true; /* * in case of page flip request, vidi_finish_pageflip function * will not be called because direct_vblank is true and then * that function will be called by manager_ops->win_commit callback */ schedule_work(&ctx->work); return 0; } static void vidi_disable_vblank(struct exynos_drm_manager *mgr) { struct vidi_context *ctx = manager_to_vidi(mgr); if (ctx->suspended) return; if (test_and_clear_bit(0, &ctx->irq_flags)) ctx->vblank_on = false; } static void vidi_win_mode_set(struct exynos_drm_manager *mgr, struct exynos_drm_overlay *overlay) { struct vidi_context *ctx = manager_to_vidi(mgr); struct vidi_win_data *win_data; int win; unsigned long offset; if (!overlay) { DRM_ERROR("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->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\n", (unsigned long)win_data->dma_addr); DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", overlay->fb_width, overlay->crtc_width); } static void vidi_win_commit(struct exynos_drm_manager *mgr, int zpos) { struct vidi_context *ctx = manager_to_vidi(mgr); struct vidi_win_data *win_data; int win = zpos; 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 = %pad\n", &win_data->dma_addr); if (ctx->vblank_on) schedule_work(&ctx->work); } static void vidi_win_disable(struct exynos_drm_manager *mgr, int zpos) { struct vidi_context *ctx = manager_to_vidi(mgr); struct vidi_win_data *win_data; int win = zpos; 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 int vidi_power_on(struct exynos_drm_manager *mgr, bool enable) { struct vidi_context *ctx = manager_to_vidi(mgr); 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(mgr); vidi_apply(mgr); } else { ctx->suspended = true; } return 0; } static void vidi_dpms(struct exynos_drm_manager *mgr, int mode) { struct vidi_context *ctx = manager_to_vidi(mgr); DRM_DEBUG_KMS("%d\n", mode); mutex_lock(&ctx->lock); switch (mode) { case DRM_MODE_DPMS_ON: vidi_power_on(mgr, true); br