1/* 2 * Copyright (C) 2013 Red Hat 3 * Author: Rob Clark <robdclark@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18#include "mdp4_kms.h" 19 20 21struct mdp4_plane { 22 struct drm_plane base; 23 const char *name; 24 25 enum mdp4_pipe pipe; 26 27 uint32_t nformats; 28 uint32_t formats[32]; 29 30 bool enabled; 31}; 32#define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base) 33 34static struct mdp4_kms *get_kms(struct drm_plane *plane) 35{ 36 struct msm_drm_private *priv = plane->dev->dev_private; 37 return to_mdp4_kms(to_mdp_kms(priv->kms)); 38} 39 40static int mdp4_plane_update(struct drm_plane *plane, 41 struct drm_crtc *crtc, struct drm_framebuffer *fb, 42 int crtc_x, int crtc_y, 43 unsigned int crtc_w, unsigned int crtc_h, 44 uint32_t src_x, uint32_t src_y, 45 uint32_t src_w, uint32_t src_h) 46{ 47 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 48 49 mdp4_plane->enabled = true; 50 51 if (plane->fb) 52 drm_framebuffer_unreference(plane->fb); 53 54 drm_framebuffer_reference(fb); 55 56 return mdp4_plane_mode_set(plane, crtc, fb, 57 crtc_x, crtc_y, crtc_w, crtc_h, 58 src_x, src_y, src_w, src_h); 59} 60 61static int mdp4_plane_disable(struct drm_plane *plane) 62{ 63 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 64 DBG("%s: disable", mdp4_plane->name); 65 if (plane->crtc) 66 mdp4_crtc_detach(plane->crtc, plane); 67 return 0; 68} 69 70static void mdp4_plane_destroy(struct drm_plane *plane) 71{ 72 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 73 74 mdp4_plane_disable(plane); 75 drm_plane_cleanup(plane); 76 77 kfree(mdp4_plane); 78} 79 80/* helper to install properties which are common to planes and crtcs */ 81void mdp4_plane_install_properties(struct drm_plane *plane, 82 struct drm_mode_object *obj) 83{ 84 // XXX 85} 86 87int mdp4_plane_set_property(struct drm_plane *plane, 88 struct drm_property *property, uint64_t val) 89{ 90 // XXX 91 return -EINVAL; 92} 93 94static const struct drm_plane_funcs mdp4_plane_funcs = { 95 .update_plane = mdp4_plane_update, 96 .disable_plane = mdp4_plane_disable, 97 .destroy = mdp4_plane_destroy, 98 .set_property = mdp4_plane_set_property, 99}; 100 101void mdp4_plane_set_scanout(struct drm_plane *plane, 102 struct drm_framebuffer *fb) 103{ 104 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 105 struct mdp4_kms *mdp4_kms = get_kms(plane); 106 enum mdp4_pipe pipe = mdp4_plane->pipe; 107 uint32_t iova; 108 109 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe), 110 MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) | 111 MDP4_PIPE_SRC_STRIDE_A_P1(fb->pitches[1])); 112 113 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_B(pipe), 114 MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) | 115 MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3])); 116 117 msm_gem_get_iova(msm_framebuffer_bo(fb, 0), mdp4_kms->id, &iova); 118 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), iova); 119 120 plane->fb = fb; 121} 122 123#define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000 124 125int mdp4_plane_mode_set(struct drm_plane *plane, 126 struct drm_crtc *crtc, struct drm_framebuffer *fb, 127 int crtc_x, int crtc_y, 128 unsigned int crtc_w, unsigned int crtc_h, 129 uint32_t src_x, uint32_t src_y, 130 uint32_t src_w, uint32_t src_h) 131{ 132 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 133 struct mdp4_kms *mdp4_kms = get_kms(plane); 134 enum mdp4_pipe pipe = mdp4_plane->pipe; 135 const struct mdp_format *format; 136 uint32_t op_mode = 0; 137 uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT; 138 uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT; 139 140 /* src values are in Q16 fixed point, convert to integer: */ 141 src_x = src_x >> 16; 142 src_y = src_y >> 16; 143 src_w = src_w >> 16; 144 src_h = src_h >> 16; 145 146 DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", mdp4_plane->name, 147 fb->base.id, src_x, src_y, src_w, src_h, 148 crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h); 149 150 if (src_w != crtc_w) { 151 op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN; 152 /* TODO calc phasex_step */ 153 } 154 155 if (src_h != crtc_h) { 156 op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN; 157 /* TODO calc phasey_step */ 158 } 159 160 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe), 161 MDP4_PIPE_SRC_SIZE_WIDTH(src_w) | 162 MDP4_PIPE_SRC_SIZE_HEIGHT(src_h)); 163 164 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_XY(pipe), 165 MDP4_PIPE_SRC_XY_X(src_x) | 166 MDP4_PIPE_SRC_XY_Y(src_y)); 167 168 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_SIZE(pipe), 169 MDP4_PIPE_DST_SIZE_WIDTH(crtc_w) | 170 MDP4_PIPE_DST_SIZE_HEIGHT(crtc_h)); 171 172 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_XY(pipe), 173 MDP4_PIPE_DST_XY_X(crtc_x) | 174 MDP4_PIPE_DST_XY_Y(crtc_y)); 175 176 mdp4_plane_set_scanout(plane, fb); 177 178 format = to_mdp_format(msm_framebuffer_format(fb)); 179 180 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe), 181 MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) | 182 MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) | 183 MDP4_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) | 184 MDP4_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) | 185 COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) | 186 MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) | 187 MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) | 188 COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT)); 189 190 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe), 191 MDP4_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) | 192 MDP4_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) | 193 MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) | 194 MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3])); 195 196 mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode); 197 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step); 198 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step); 199 200 /* TODO detach from old crtc (if we had more than one) */ 201 mdp4_crtc_attach(crtc, plane); 202 203 return 0; 204} 205 206static const char *pipe_names[] = { 207 "VG1", "VG2", 208 "RGB1", "RGB2", "RGB3", 209 "VG3", "VG4", 210}; 211 212enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane) 213{ 214 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane); 215 return mdp4_plane->pipe; 216} 217 218/* initialize plane */ 219struct drm_plane *mdp4_plane_init(struct drm_device *dev, 220 enum mdp4_pipe pipe_id, bool private_plane) 221{ 222 struct drm_plane *plane = NULL; 223 struct mdp4_plane *mdp4_plane; 224 int ret; 225 enum drm_plane_type type; 226 227 mdp4_plane = kzalloc(sizeof(*mdp4_plane), GFP_KERNEL); 228 if (!mdp4_plane) { 229 ret = -ENOMEM; 230 goto fail; 231 } 232 233 plane = &mdp4_plane->base; 234 235 mdp4_plane->pipe = pipe_id; 236 mdp4_plane->name = pipe_names[pipe_id]; 237 238 mdp4_plane->nformats = mdp4_get_formats(pipe_id, mdp4_plane->formats, 239 ARRAY_SIZE(mdp4_plane->formats)); 240 241 type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; 242 drm_universal_plane_init(dev, plane, 0xff, &mdp4_plane_funcs, 243 mdp4_plane->formats, mdp4_plane->nformats, 244 type); 245 246 mdp4_plane_install_properties(plane, &plane->base); 247 248 return plane; 249 250fail: 251 if (plane) 252 mdp4_plane_destroy(plane); 253 254 return ERR_PTR(ret); 255} 256