11c248b7dSInki Dae /* exynos_drm_crtc.c 21c248b7dSInki Dae * 31c248b7dSInki Dae * Copyright (c) 2011 Samsung Electronics Co., Ltd. 41c248b7dSInki Dae * Authors: 51c248b7dSInki Dae * Inki Dae <inki.dae@samsung.com> 61c248b7dSInki Dae * Joonyoung Shim <jy0922.shim@samsung.com> 71c248b7dSInki Dae * Seung-Woo Kim <sw0312.kim@samsung.com> 81c248b7dSInki Dae * 91c248b7dSInki Dae * Permission is hereby granted, free of charge, to any person obtaining a 101c248b7dSInki Dae * copy of this software and associated documentation files (the "Software"), 111c248b7dSInki Dae * to deal in the Software without restriction, including without limitation 121c248b7dSInki Dae * the rights to use, copy, modify, merge, publish, distribute, sublicense, 131c248b7dSInki Dae * and/or sell copies of the Software, and to permit persons to whom the 141c248b7dSInki Dae * Software is furnished to do so, subject to the following conditions: 151c248b7dSInki Dae * 161c248b7dSInki Dae * The above copyright notice and this permission notice (including the next 171c248b7dSInki Dae * paragraph) shall be included in all copies or substantial portions of the 181c248b7dSInki Dae * Software. 191c248b7dSInki Dae * 201c248b7dSInki Dae * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 211c248b7dSInki Dae * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 221c248b7dSInki Dae * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 231c248b7dSInki Dae * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 241c248b7dSInki Dae * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 251c248b7dSInki Dae * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 261c248b7dSInki Dae * OTHER DEALINGS IN THE SOFTWARE. 271c248b7dSInki Dae */ 281c248b7dSInki Dae 291c248b7dSInki Dae #include "drmP.h" 301c248b7dSInki Dae #include "drm_crtc_helper.h" 311c248b7dSInki Dae 322c871127SInki Dae #include "exynos_drm_crtc.h" 331c248b7dSInki Dae #include "exynos_drm_drv.h" 341c248b7dSInki Dae #include "exynos_drm_fb.h" 351c248b7dSInki Dae #include "exynos_drm_encoder.h" 362c871127SInki Dae #include "exynos_drm_gem.h" 371c248b7dSInki Dae 381c248b7dSInki Dae #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc,\ 391c248b7dSInki Dae drm_crtc) 401c248b7dSInki Dae 411c248b7dSInki Dae /* 421c248b7dSInki Dae * Exynos specific crtc structure. 431c248b7dSInki Dae * 441c248b7dSInki Dae * @drm_crtc: crtc object. 451c248b7dSInki Dae * @overlay: contain information common to display controller and hdmi and 461c248b7dSInki Dae * contents of this overlay object would be copied to sub driver size. 471c248b7dSInki Dae * @pipe: a crtc index created at load() with a new crtc object creation 481c248b7dSInki Dae * and the crtc object would be set to private->crtc array 491c248b7dSInki Dae * to get a crtc object corresponding to this pipe from private->crtc 501c248b7dSInki Dae * array when irq interrupt occured. the reason of using this pipe is that 511c248b7dSInki Dae * drm framework doesn't support multiple irq yet. 521c248b7dSInki Dae * we can refer to the crtc to current hardware interrupt occured through 531c248b7dSInki Dae * this pipe value. 54ec05da95SInki Dae * @dpms: store the crtc dpms value 551c248b7dSInki Dae */ 561c248b7dSInki Dae struct exynos_drm_crtc { 571c248b7dSInki Dae struct drm_crtc drm_crtc; 581c248b7dSInki Dae struct exynos_drm_overlay overlay; 591c248b7dSInki Dae unsigned int pipe; 60ec05da95SInki Dae unsigned int dpms; 611c248b7dSInki Dae }; 621c248b7dSInki Dae 638e9cc6a1SInki Dae static void exynos_drm_crtc_apply(struct drm_crtc *crtc) 641c248b7dSInki Dae { 651c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 661c248b7dSInki Dae struct exynos_drm_overlay *overlay = &exynos_crtc->overlay; 671c248b7dSInki Dae 681c248b7dSInki Dae exynos_drm_fn_encoder(crtc, overlay, 691c248b7dSInki Dae exynos_drm_encoder_crtc_mode_set); 70d2716c89SJoonyoung Shim exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe, 71d2716c89SJoonyoung Shim exynos_drm_encoder_crtc_commit); 721c248b7dSInki Dae } 731c248b7dSInki Dae 742c871127SInki Dae int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, 751c248b7dSInki Dae struct drm_framebuffer *fb, 761c248b7dSInki Dae struct drm_display_mode *mode, 771c248b7dSInki Dae struct exynos_drm_crtc_pos *pos) 781c248b7dSInki Dae { 792c871127SInki Dae struct exynos_drm_gem_buf *buffer; 8019c8b834SInki Dae unsigned int actual_w; 8119c8b834SInki Dae unsigned int actual_h; 82229d3534SSeung-Woo Kim int nr = exynos_drm_format_num_buffers(fb->pixel_format); 83229d3534SSeung-Woo Kim int i; 841c248b7dSInki Dae 85229d3534SSeung-Woo Kim for (i = 0; i < nr; i++) { 86229d3534SSeung-Woo Kim buffer = exynos_drm_fb_buffer(fb, i); 872c871127SInki Dae if (!buffer) { 88229d3534SSeung-Woo Kim DRM_LOG_KMS("buffer is null\n"); 8919c8b834SInki Dae return -EFAULT; 9019c8b834SInki Dae } 911c248b7dSInki Dae 92229d3534SSeung-Woo Kim overlay->dma_addr[i] = buffer->dma_addr; 93229d3534SSeung-Woo Kim overlay->vaddr[i] = buffer->kvaddr; 941c248b7dSInki Dae 95229d3534SSeung-Woo Kim DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n", 96229d3534SSeung-Woo Kim i, (unsigned long)overlay->vaddr[i], 97229d3534SSeung-Woo Kim (unsigned long)overlay->dma_addr[i]); 98229d3534SSeung-Woo Kim } 991c248b7dSInki Dae 10019c8b834SInki Dae actual_w = min((mode->hdisplay - pos->crtc_x), pos->crtc_w); 10119c8b834SInki Dae actual_h = min((mode->vdisplay - pos->crtc_y), pos->crtc_h); 10219c8b834SInki Dae 10319c8b834SInki Dae /* set drm framebuffer data. */ 10419c8b834SInki Dae overlay->fb_x = pos->fb_x; 10519c8b834SInki Dae overlay->fb_y = pos->fb_y; 10619c8b834SInki Dae overlay->fb_width = fb->width; 10719c8b834SInki Dae overlay->fb_height = fb->height; 1081c248b7dSInki Dae overlay->bpp = fb->bits_per_pixel; 10901f2c773SVille Syrjälä overlay->pitch = fb->pitches[0]; 110229d3534SSeung-Woo Kim overlay->pixel_format = fb->pixel_format; 11119c8b834SInki Dae 11219c8b834SInki Dae /* set overlay range to be displayed. */ 11319c8b834SInki Dae overlay->crtc_x = pos->crtc_x; 11419c8b834SInki Dae overlay->crtc_y = pos->crtc_y; 11519c8b834SInki Dae overlay->crtc_width = actual_w; 11619c8b834SInki Dae overlay->crtc_height = actual_h; 11719c8b834SInki Dae 11819c8b834SInki Dae /* set drm mode data. */ 11919c8b834SInki Dae overlay->mode_width = mode->hdisplay; 12019c8b834SInki Dae overlay->mode_height = mode->vdisplay; 12119c8b834SInki Dae overlay->refresh = mode->vrefresh; 12219c8b834SInki Dae overlay->scan_flag = mode->flags; 1231c248b7dSInki Dae 1241c248b7dSInki Dae DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)", 12519c8b834SInki Dae overlay->crtc_x, overlay->crtc_y, 12619c8b834SInki Dae overlay->crtc_width, overlay->crtc_height); 1271c248b7dSInki Dae 12819c8b834SInki Dae return 0; 1291c248b7dSInki Dae } 1301c248b7dSInki Dae 1311c248b7dSInki Dae static int exynos_drm_crtc_update(struct drm_crtc *crtc) 1321c248b7dSInki Dae { 1331c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc; 1341c248b7dSInki Dae struct exynos_drm_overlay *overlay; 1351c248b7dSInki Dae struct exynos_drm_crtc_pos pos; 1361c248b7dSInki Dae struct drm_display_mode *mode = &crtc->mode; 1371c248b7dSInki Dae struct drm_framebuffer *fb = crtc->fb; 1381c248b7dSInki Dae 1391c248b7dSInki Dae if (!mode || !fb) 1401c248b7dSInki Dae return -EINVAL; 1411c248b7dSInki Dae 1421c248b7dSInki Dae exynos_crtc = to_exynos_crtc(crtc); 1431c248b7dSInki Dae overlay = &exynos_crtc->overlay; 1441c248b7dSInki Dae 1451c248b7dSInki Dae memset(&pos, 0, sizeof(struct exynos_drm_crtc_pos)); 14619c8b834SInki Dae 14719c8b834SInki Dae /* it means the offset of framebuffer to be displayed. */ 1481c248b7dSInki Dae pos.fb_x = crtc->x; 1491c248b7dSInki Dae pos.fb_y = crtc->y; 15019c8b834SInki Dae 15119c8b834SInki Dae /* OSD position to be displayed. */ 15219c8b834SInki Dae pos.crtc_x = 0; 15319c8b834SInki Dae pos.crtc_y = 0; 1541c248b7dSInki Dae pos.crtc_w = fb->width - crtc->x; 1551c248b7dSInki Dae pos.crtc_h = fb->height - crtc->y; 1561c248b7dSInki Dae 15719c8b834SInki Dae return exynos_drm_overlay_update(overlay, crtc->fb, mode, &pos); 1581c248b7dSInki Dae } 1591c248b7dSInki Dae 1601c248b7dSInki Dae static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode) 1611c248b7dSInki Dae { 162ec05da95SInki Dae struct drm_device *dev = crtc->dev; 163d2716c89SJoonyoung Shim struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 1641c248b7dSInki Dae 165d2716c89SJoonyoung Shim DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode); 166d2716c89SJoonyoung Shim 167ec05da95SInki Dae if (exynos_crtc->dpms == mode) { 168ec05da95SInki Dae DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n"); 169ec05da95SInki Dae return; 170ec05da95SInki Dae } 171ec05da95SInki Dae 172ec05da95SInki Dae mutex_lock(&dev->struct_mutex); 173ec05da95SInki Dae 174d2716c89SJoonyoung Shim switch (mode) { 175d2716c89SJoonyoung Shim case DRM_MODE_DPMS_ON: 176ec05da95SInki Dae exynos_drm_fn_encoder(crtc, &mode, 177ec05da95SInki Dae exynos_drm_encoder_crtc_dpms); 178ec05da95SInki Dae exynos_crtc->dpms = mode; 179d2716c89SJoonyoung Shim break; 180d2716c89SJoonyoung Shim case DRM_MODE_DPMS_STANDBY: 181d2716c89SJoonyoung Shim case DRM_MODE_DPMS_SUSPEND: 182d2716c89SJoonyoung Shim case DRM_MODE_DPMS_OFF: 183ec05da95SInki Dae exynos_drm_fn_encoder(crtc, &mode, 184ec05da95SInki Dae exynos_drm_encoder_crtc_dpms); 185ec05da95SInki Dae exynos_crtc->dpms = mode; 186d2716c89SJoonyoung Shim break; 187d2716c89SJoonyoung Shim default: 188ec05da95SInki Dae DRM_ERROR("unspecified mode %d\n", mode); 189d2716c89SJoonyoung Shim break; 190d2716c89SJoonyoung Shim } 191ec05da95SInki Dae 192ec05da95SInki Dae mutex_unlock(&dev->struct_mutex); 1931c248b7dSInki Dae } 1941c248b7dSInki Dae 1951c248b7dSInki Dae static void exynos_drm_crtc_prepare(struct drm_crtc *crtc) 1961c248b7dSInki Dae { 1971c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 1981c248b7dSInki Dae 1991c248b7dSInki Dae /* drm framework doesn't check NULL. */ 2001c248b7dSInki Dae } 2011c248b7dSInki Dae 2021c248b7dSInki Dae static void exynos_drm_crtc_commit(struct drm_crtc *crtc) 2031c248b7dSInki Dae { 204d2716c89SJoonyoung Shim struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 205d2716c89SJoonyoung Shim 2061c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2071c248b7dSInki Dae 208ec05da95SInki Dae /* 209ec05da95SInki Dae * when set_crtc is requested from user or at booting time, 210ec05da95SInki Dae * crtc->commit would be called without dpms call so if dpms is 211ec05da95SInki Dae * no power on then crtc->dpms should be called 212ec05da95SInki Dae * with DRM_MODE_DPMS_ON for the hardware power to be on. 213ec05da95SInki Dae */ 214ec05da95SInki Dae if (exynos_crtc->dpms != DRM_MODE_DPMS_ON) { 215ec05da95SInki Dae int mode = DRM_MODE_DPMS_ON; 216ec05da95SInki Dae 217ec05da95SInki Dae /* 218ec05da95SInki Dae * enable hardware(power on) to all encoders hdmi connected 219ec05da95SInki Dae * to current crtc. 220ec05da95SInki Dae */ 221ec05da95SInki Dae exynos_drm_crtc_dpms(crtc, mode); 222ec05da95SInki Dae /* 223ec05da95SInki Dae * enable dma to all encoders connected to current crtc and 224ec05da95SInki Dae * lcd panel. 225ec05da95SInki Dae */ 226ec05da95SInki Dae exynos_drm_fn_encoder(crtc, &mode, 227ec05da95SInki Dae exynos_drm_encoder_dpms_from_crtc); 228ec05da95SInki Dae } 229ec05da95SInki Dae 230d2716c89SJoonyoung Shim exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe, 231d2716c89SJoonyoung Shim exynos_drm_encoder_crtc_commit); 2321c248b7dSInki Dae } 2331c248b7dSInki Dae 2341c248b7dSInki Dae static bool 2351c248b7dSInki Dae exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc, 2361c248b7dSInki Dae struct drm_display_mode *mode, 2371c248b7dSInki Dae struct drm_display_mode *adjusted_mode) 2381c248b7dSInki Dae { 2391c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2401c248b7dSInki Dae 2411c248b7dSInki Dae /* drm framework doesn't check NULL */ 2421c248b7dSInki Dae return true; 2431c248b7dSInki Dae } 2441c248b7dSInki Dae 2451c248b7dSInki Dae static int 2461c248b7dSInki Dae exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, 2471c248b7dSInki Dae struct drm_display_mode *adjusted_mode, int x, int y, 2481c248b7dSInki Dae struct drm_framebuffer *old_fb) 2491c248b7dSInki Dae { 2501c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2511c248b7dSInki Dae 2521c248b7dSInki Dae mode = adjusted_mode; 2531c248b7dSInki Dae 2541c248b7dSInki Dae return exynos_drm_crtc_update(crtc); 2551c248b7dSInki Dae } 2561c248b7dSInki Dae 2571c248b7dSInki Dae static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, 2581c248b7dSInki Dae struct drm_framebuffer *old_fb) 2591c248b7dSInki Dae { 2601c248b7dSInki Dae int ret; 2611c248b7dSInki Dae 2621c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2631c248b7dSInki Dae 2641c248b7dSInki Dae ret = exynos_drm_crtc_update(crtc); 2651c248b7dSInki Dae if (ret) 2661c248b7dSInki Dae return ret; 2671c248b7dSInki Dae 2681c248b7dSInki Dae exynos_drm_crtc_apply(crtc); 2691c248b7dSInki Dae 2701c248b7dSInki Dae return ret; 2711c248b7dSInki Dae } 2721c248b7dSInki Dae 2731c248b7dSInki Dae static void exynos_drm_crtc_load_lut(struct drm_crtc *crtc) 2741c248b7dSInki Dae { 2751c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 2761c248b7dSInki Dae /* drm framework doesn't check NULL */ 2771c248b7dSInki Dae } 2781c248b7dSInki Dae 2791c248b7dSInki Dae static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = { 2801c248b7dSInki Dae .dpms = exynos_drm_crtc_dpms, 2811c248b7dSInki Dae .prepare = exynos_drm_crtc_prepare, 2821c248b7dSInki Dae .commit = exynos_drm_crtc_commit, 2831c248b7dSInki Dae .mode_fixup = exynos_drm_crtc_mode_fixup, 2841c248b7dSInki Dae .mode_set = exynos_drm_crtc_mode_set, 2851c248b7dSInki Dae .mode_set_base = exynos_drm_crtc_mode_set_base, 2861c248b7dSInki Dae .load_lut = exynos_drm_crtc_load_lut, 2871c248b7dSInki Dae }; 2881c248b7dSInki Dae 2891c248b7dSInki Dae static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, 2901c248b7dSInki Dae struct drm_framebuffer *fb, 2911c248b7dSInki Dae struct drm_pending_vblank_event *event) 2921c248b7dSInki Dae { 2931c248b7dSInki Dae struct drm_device *dev = crtc->dev; 2941c248b7dSInki Dae struct exynos_drm_private *dev_priv = dev->dev_private; 2951c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 2961c248b7dSInki Dae struct drm_framebuffer *old_fb = crtc->fb; 2971c248b7dSInki Dae int ret = -EINVAL; 2981c248b7dSInki Dae 2991c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 3001c248b7dSInki Dae 3011c248b7dSInki Dae mutex_lock(&dev->struct_mutex); 3021c248b7dSInki Dae 303ccf4d883SInki Dae if (event) { 304ccf4d883SInki Dae /* 305ccf4d883SInki Dae * the pipe from user always is 0 so we can set pipe number 306ccf4d883SInki Dae * of current owner to event. 307ccf4d883SInki Dae */ 308ccf4d883SInki Dae event->pipe = exynos_crtc->pipe; 309ccf4d883SInki Dae 3101c248b7dSInki Dae ret = drm_vblank_get(dev, exynos_crtc->pipe); 3111c248b7dSInki Dae if (ret) { 3121c248b7dSInki Dae DRM_DEBUG("failed to acquire vblank counter\n"); 313ccf4d883SInki Dae list_del(&event->base.link); 314ccf4d883SInki Dae 3151c248b7dSInki Dae goto out; 3161c248b7dSInki Dae } 3171c248b7dSInki Dae 318c5614ae3SInki Dae list_add_tail(&event->base.link, 319c5614ae3SInki Dae &dev_priv->pageflip_event_list); 320c5614ae3SInki Dae 3211c248b7dSInki Dae crtc->fb = fb; 3221c248b7dSInki Dae ret = exynos_drm_crtc_update(crtc); 3231c248b7dSInki Dae if (ret) { 3241c248b7dSInki Dae crtc->fb = old_fb; 3251c248b7dSInki Dae drm_vblank_put(dev, exynos_crtc->pipe); 326ccf4d883SInki Dae list_del(&event->base.link); 3271c248b7dSInki Dae 3281c248b7dSInki Dae goto out; 3291c248b7dSInki Dae } 3301c248b7dSInki Dae 331f6b98252SInki Dae /* 332f6b98252SInki Dae * the values related to a buffer of the drm framebuffer 333f6b98252SInki Dae * to be applied should be set at here. because these values 334ccf4d883SInki Dae * first, are set to shadow registers and then to 335f6b98252SInki Dae * real registers at vsync front porch period. 336f6b98252SInki Dae */ 3378e9cc6a1SInki Dae exynos_drm_crtc_apply(crtc); 3381c248b7dSInki Dae } 3391c248b7dSInki Dae out: 3401c248b7dSInki Dae mutex_unlock(&dev->struct_mutex); 3411c248b7dSInki Dae return ret; 3421c248b7dSInki Dae } 3431c248b7dSInki Dae 3441c248b7dSInki Dae static void exynos_drm_crtc_destroy(struct drm_crtc *crtc) 3451c248b7dSInki Dae { 3461c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 3471c248b7dSInki Dae struct exynos_drm_private *private = crtc->dev->dev_private; 3481c248b7dSInki Dae 3491c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 3501c248b7dSInki Dae 3511c248b7dSInki Dae private->crtc[exynos_crtc->pipe] = NULL; 3521c248b7dSInki Dae 3531c248b7dSInki Dae drm_crtc_cleanup(crtc); 3541c248b7dSInki Dae kfree(exynos_crtc); 3551c248b7dSInki Dae } 3561c248b7dSInki Dae 3571c248b7dSInki Dae static struct drm_crtc_funcs exynos_crtc_funcs = { 3581c248b7dSInki Dae .set_config = drm_crtc_helper_set_config, 3591c248b7dSInki Dae .page_flip = exynos_drm_crtc_page_flip, 3601c248b7dSInki Dae .destroy = exynos_drm_crtc_destroy, 3611c248b7dSInki Dae }; 3621c248b7dSInki Dae 3631c248b7dSInki Dae struct exynos_drm_overlay *get_exynos_drm_overlay(struct drm_device *dev, 3641c248b7dSInki Dae struct drm_crtc *crtc) 3651c248b7dSInki Dae { 3661c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); 3671c248b7dSInki Dae 3681c248b7dSInki Dae return &exynos_crtc->overlay; 3691c248b7dSInki Dae } 3701c248b7dSInki Dae 3711c248b7dSInki Dae int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr) 3721c248b7dSInki Dae { 3731c248b7dSInki Dae struct exynos_drm_crtc *exynos_crtc; 3741c248b7dSInki Dae struct exynos_drm_private *private = dev->dev_private; 3751c248b7dSInki Dae struct drm_crtc *crtc; 3761c248b7dSInki Dae 3771c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 3781c248b7dSInki Dae 3791c248b7dSInki Dae exynos_crtc = kzalloc(sizeof(*exynos_crtc), GFP_KERNEL); 3801c248b7dSInki Dae if (!exynos_crtc) { 3811c248b7dSInki Dae DRM_ERROR("failed to allocate exynos crtc\n"); 3821c248b7dSInki Dae return -ENOMEM; 3831c248b7dSInki Dae } 3841c248b7dSInki Dae 3851c248b7dSInki Dae exynos_crtc->pipe = nr; 386ec05da95SInki Dae exynos_crtc->dpms = DRM_MODE_DPMS_OFF; 387864ee9e6SJoonyoung Shim exynos_crtc->overlay.zpos = DEFAULT_ZPOS; 3881c248b7dSInki Dae crtc = &exynos_crtc->drm_crtc; 3891c248b7dSInki Dae 3901c248b7dSInki Dae private->crtc[nr] = crtc; 3911c248b7dSInki Dae 3921c248b7dSInki Dae drm_crtc_init(dev, crtc, &exynos_crtc_funcs); 3931c248b7dSInki Dae drm_crtc_helper_add(crtc, &exynos_crtc_helper_funcs); 3941c248b7dSInki Dae 3951c248b7dSInki Dae return 0; 3961c248b7dSInki Dae } 3971c248b7dSInki Dae 3981c248b7dSInki Dae int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc) 3991c248b7dSInki Dae { 4001c248b7dSInki Dae struct exynos_drm_private *private = dev->dev_private; 401ec05da95SInki Dae struct exynos_drm_crtc *exynos_crtc = 402ec05da95SInki Dae to_exynos_crtc(private->crtc[crtc]); 4031c248b7dSInki Dae 4041c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 4051c248b7dSInki Dae 406ec05da95SInki Dae if (exynos_crtc->dpms != DRM_MODE_DPMS_ON) 407ec05da95SInki Dae return -EPERM; 408ec05da95SInki Dae 4091c248b7dSInki Dae exynos_drm_fn_encoder(private->crtc[crtc], &crtc, 4101c248b7dSInki Dae exynos_drm_enable_vblank); 4111c248b7dSInki Dae 4121c248b7dSInki Dae return 0; 4131c248b7dSInki Dae } 4141c248b7dSInki Dae 4151c248b7dSInki Dae void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc) 4161c248b7dSInki Dae { 4171c248b7dSInki Dae struct exynos_drm_private *private = dev->dev_private; 418ec05da95SInki Dae struct exynos_drm_crtc *exynos_crtc = 419ec05da95SInki Dae to_exynos_crtc(private->crtc[crtc]); 4201c248b7dSInki Dae 4211c248b7dSInki Dae DRM_DEBUG_KMS("%s\n", __FILE__); 4221c248b7dSInki Dae 423ec05da95SInki Dae if (exynos_crtc->dpms != DRM_MODE_DPMS_ON) 424ec05da95SInki Dae return; 425ec05da95SInki Dae 4261c248b7dSInki Dae exynos_drm_fn_encoder(private->crtc[crtc], &crtc, 4271c248b7dSInki Dae exynos_drm_disable_vblank); 4281c248b7dSInki Dae } 4291c248b7dSInki Dae 4301c248b7dSInki Dae MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); 4311c248b7dSInki Dae MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); 4321c248b7dSInki Dae MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); 4331c248b7dSInki Dae MODULE_DESCRIPTION("Samsung SoC DRM CRTC Driver"); 4341c248b7dSInki Dae MODULE_LICENSE("GPL"); 435