1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2016 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
5 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
6 * Copyright (C) 2014 Endless Mobile
9 * Jasper St. Pierre <jstpierre@mecheye.net>
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/mutex.h>
15 #include <linux/bitfield.h>
16 #include <linux/platform_device.h>
18 #include <drm/drm_atomic.h>
19 #include <drm/drm_atomic_helper.h>
20 #include <drm/drm_plane_helper.h>
21 #include <drm/drm_gem_cma_helper.h>
22 #include <drm/drm_fb_cma_helper.h>
23 #include <drm/drm_gem_framebuffer_helper.h>
24 #include <drm/drm_rect.h>
26 #include "meson_plane.h"
27 #include "meson_vpp.h"
28 #include "meson_viu.h"
29 #include "meson_registers.h"
32 #define SCI_WH_M1_W(w) FIELD_PREP(GENMASK(28, 16), w)
33 #define SCI_WH_M1_H(h) FIELD_PREP(GENMASK(12, 0), h)
35 /* OSD_SCO_H_START_END */
36 /* OSD_SCO_V_START_END */
37 #define SCO_HV_START(start) FIELD_PREP(GENMASK(27, 16), start)
38 #define SCO_HV_END(end) FIELD_PREP(GENMASK(11, 0), end)
41 #define SC_CTRL0_PATH_EN BIT(3)
42 #define SC_CTRL0_SEL_OSD1 BIT(2)
45 #define VSC_BANK_LEN(value) FIELD_PREP(GENMASK(2, 0), value)
46 #define VSC_TOP_INI_RCV_NUM(value) FIELD_PREP(GENMASK(6, 3), value)
47 #define VSC_TOP_RPT_L0_NUM(value) FIELD_PREP(GENMASK(9, 8), value)
48 #define VSC_BOT_INI_RCV_NUM(value) FIELD_PREP(GENMASK(14, 11), value)
49 #define VSC_BOT_RPT_L0_NUM(value) FIELD_PREP(GENMASK(17, 16), value)
50 #define VSC_PROG_INTERLACE BIT(23)
51 #define VSC_VERTICAL_SCALER_EN BIT(24)
53 /* OSD_VSC_INI_PHASE */
54 #define VSC_INI_PHASE_BOT(bottom) FIELD_PREP(GENMASK(31, 16), bottom)
55 #define VSC_INI_PHASE_TOP(top) FIELD_PREP(GENMASK(15, 0), top)
58 #define HSC_BANK_LENGTH(value) FIELD_PREP(GENMASK(2, 0), value)
59 #define HSC_INI_RCV_NUM0(value) FIELD_PREP(GENMASK(6, 3), value)
60 #define HSC_RPT_P0_NUM0(value) FIELD_PREP(GENMASK(9, 8), value)
61 #define HSC_HORIZ_SCALER_EN BIT(22)
63 /* VPP_OSD_VSC_PHASE_STEP */
64 /* VPP_OSD_HSC_PHASE_STEP */
65 #define SC_PHASE_STEP(value) FIELD_PREP(GENMASK(27, 0), value)
68 struct drm_plane base;
69 struct meson_drm *priv;
72 #define to_meson_plane(x) container_of(x, struct meson_plane, base)
74 #define FRAC_16_16(mult, div) (((mult) << 16) / (div))
76 static int meson_plane_atomic_check(struct drm_plane *plane,
77 struct drm_plane_state *state)
79 struct drm_crtc_state *crtc_state;
84 crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
85 if (IS_ERR(crtc_state))
86 return PTR_ERR(crtc_state);
90 * - Upscaling up to 5x, vertical and horizontal
91 * - Final coordinates must match crtc size
93 return drm_atomic_helper_check_plane_state(state, crtc_state,
95 DRM_PLANE_HELPER_NO_SCALING,
99 /* Takes a fixed 16.16 number and converts it to integer. */
100 static inline int64_t fixed16_to_int(int64_t value)
105 static void meson_plane_atomic_update(struct drm_plane *plane,
106 struct drm_plane_state *old_state)
108 struct meson_plane *meson_plane = to_meson_plane(plane);
109 struct drm_plane_state *state = plane->state;
110 struct drm_rect dest = drm_plane_state_dest(state);
111 struct meson_drm *priv = meson_plane->priv;
112 struct drm_framebuffer *fb = state->fb;
113 struct drm_gem_cma_object *gem;
115 int vsc_ini_rcv_num, vsc_ini_rpt_p0_num;
116 int vsc_bot_rcv_num, vsc_bot_rpt_p0_num;
117 int hsc_ini_rcv_num, hsc_ini_rpt_p0_num;
118 int hf_phase_step, vf_phase_step;
119 int src_w, src_h, dst_w, dst_h;
131 spin_lock_irqsave(&priv->drm->event_lock, flags);
133 /* Enable OSD and BLK0, set max global alpha */
134 priv->viu.osd1_ctrl_stat = OSD_ENABLE |
135 (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
138 canvas_id_osd1 = priv->canvas_id_osd1;
140 /* Set up BLK0 to point to the right canvas */
141 priv->viu.osd1_blk0_cfg[0] = ((canvas_id_osd1 << OSD_CANVAS_SEL) |
144 /* On GXBB, Use the old non-HDR RGB2YUV converter */
145 if (meson_vpu_is_compatible(priv, "amlogic,meson-gxbb-vpu"))
146 priv->viu.osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
148 switch (fb->format->format) {
149 case DRM_FORMAT_XRGB8888:
150 /* For XRGB, replace the pixel's alpha by 0xFF */
151 writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
152 priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
153 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
154 OSD_COLOR_MATRIX_32_ARGB;
156 case DRM_FORMAT_ARGB8888:
157 /* For ARGB, use the pixel's alpha */
158 writel_bits_relaxed(OSD_REPLACE_EN, 0,
159 priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
160 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
161 OSD_COLOR_MATRIX_32_ARGB;
163 case DRM_FORMAT_RGB888:
164 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
165 OSD_COLOR_MATRIX_24_RGB;
167 case DRM_FORMAT_RGB565:
168 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
169 OSD_COLOR_MATRIX_16_RGB565;
173 /* Default scaler parameters */
175 vsc_bot_rpt_p0_num = 0;
179 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
181 vsc_bot_rpt_p0_num = 2;
184 hsc_ini_rcv_num = hf_bank_len;
185 vsc_ini_rcv_num = vf_bank_len;
186 hsc_ini_rpt_p0_num = (hf_bank_len / 2) - 1;
187 vsc_ini_rpt_p0_num = (vf_bank_len / 2) - 1;
189 src_w = fixed16_to_int(state->src_w);
190 src_h = fixed16_to_int(state->src_h);
191 dst_w = state->crtc_w;
192 dst_h = state->crtc_h;
195 * When the output is interlaced, the OSD must switch between
196 * each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
198 * But the vertical scaler can provide such funtionnality if
199 * is configured for 2:1 scaling with interlace options enabled.
201 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
207 hf_phase_step = ((src_w << 18) / dst_w) << 6;
208 vf_phase_step = (src_h << 20) / dst_h;
210 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
211 bot_ini_phase = ((vf_phase_step / 2) >> 4);
215 vf_phase_step = (vf_phase_step << 4);
217 /* In interlaced mode, scaler is always active */
218 if (src_h != dst_h || src_w != dst_w) {
219 priv->viu.osd_sc_i_wh_m1 = SCI_WH_M1_W(src_w - 1) |
220 SCI_WH_M1_H(src_h - 1);
221 priv->viu.osd_sc_o_h_start_end = SCO_HV_START(dest.x1) |
222 SCO_HV_END(dest.x2 - 1);
223 priv->viu.osd_sc_o_v_start_end = SCO_HV_START(dest.y1) |
224 SCO_HV_END(dest.y2 - 1);
225 /* Enable OSD Scaler */
226 priv->viu.osd_sc_ctrl0 = SC_CTRL0_PATH_EN | SC_CTRL0_SEL_OSD1;
228 priv->viu.osd_sc_i_wh_m1 = 0;
229 priv->viu.osd_sc_o_h_start_end = 0;
230 priv->viu.osd_sc_o_v_start_end = 0;
231 priv->viu.osd_sc_ctrl0 = 0;
234 /* In interlaced mode, vertical scaler is always active */
235 if (src_h != dst_h) {
236 priv->viu.osd_sc_v_ctrl0 =
237 VSC_BANK_LEN(vf_bank_len) |
238 VSC_TOP_INI_RCV_NUM(vsc_ini_rcv_num) |
239 VSC_TOP_RPT_L0_NUM(vsc_ini_rpt_p0_num) |
240 VSC_VERTICAL_SCALER_EN;
242 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
243 priv->viu.osd_sc_v_ctrl0 |=
244 VSC_BOT_INI_RCV_NUM(vsc_bot_rcv_num) |
245 VSC_BOT_RPT_L0_NUM(vsc_bot_rpt_p0_num) |
248 priv->viu.osd_sc_v_phase_step = SC_PHASE_STEP(vf_phase_step);
249 priv->viu.osd_sc_v_ini_phase = VSC_INI_PHASE_BOT(bot_ini_phase);
251 priv->viu.osd_sc_v_ctrl0 = 0;
252 priv->viu.osd_sc_v_phase_step = 0;
253 priv->viu.osd_sc_v_ini_phase = 0;
256 /* Horizontal scaler is only used if width does not match */
257 if (src_w != dst_w) {
258 priv->viu.osd_sc_h_ctrl0 =
259 HSC_BANK_LENGTH(hf_bank_len) |
260 HSC_INI_RCV_NUM0(hsc_ini_rcv_num) |
261 HSC_RPT_P0_NUM0(hsc_ini_rpt_p0_num) |
263 priv->viu.osd_sc_h_phase_step = SC_PHASE_STEP(hf_phase_step);
264 priv->viu.osd_sc_h_ini_phase = 0;
266 priv->viu.osd_sc_h_ctrl0 = 0;
267 priv->viu.osd_sc_h_phase_step = 0;
268 priv->viu.osd_sc_h_ini_phase = 0;
272 * The format of these registers is (x2 << 16 | x1),
273 * where x2 is exclusive.
274 * e.g. +30x1920 would be (1919 << 16) | 30
276 priv->viu.osd1_blk0_cfg[1] =
277 ((fixed16_to_int(state->src.x2) - 1) << 16) |
278 fixed16_to_int(state->src.x1);
279 priv->viu.osd1_blk0_cfg[2] =
280 ((fixed16_to_int(state->src.y2) - 1) << 16) |
281 fixed16_to_int(state->src.y1);
282 priv->viu.osd1_blk0_cfg[3] = ((dest.x2 - 1) << 16) | dest.x1;
283 priv->viu.osd1_blk0_cfg[4] = ((dest.y2 - 1) << 16) | dest.y1;
285 if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu")) {
286 priv->viu.osd_blend_din0_scope_h = ((dest.x2 - 1) << 16) | dest.x1;
287 priv->viu.osd_blend_din0_scope_v = ((dest.y2 - 1) << 16) | dest.y1;
288 priv->viu.osb_blend0_size = dst_h << 16 | dst_w;
289 priv->viu.osb_blend1_size = dst_h << 16 | dst_w;
292 /* Update Canvas with buffer address */
293 gem = drm_fb_cma_get_gem_obj(fb, 0);
295 priv->viu.osd1_addr = gem->paddr;
296 priv->viu.osd1_stride = fb->pitches[0];
297 priv->viu.osd1_height = fb->height;
299 if (!meson_plane->enabled) {
300 /* Reset OSD1 before enabling it on GXL+ SoCs */
301 if (meson_vpu_is_compatible(priv, "amlogic,meson-gxm-vpu") ||
302 meson_vpu_is_compatible(priv, "amlogic,meson-gxl-vpu"))
303 meson_viu_osd1_reset(priv);
305 meson_plane->enabled = true;
308 priv->viu.osd1_enabled = true;
310 spin_unlock_irqrestore(&priv->drm->event_lock, flags);
313 static void meson_plane_atomic_disable(struct drm_plane *plane,
314 struct drm_plane_state *old_state)
316 struct meson_plane *meson_plane = to_meson_plane(plane);
317 struct meson_drm *priv = meson_plane->priv;
320 if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu"))
321 writel_bits_relaxed(3 << 8, 0,
322 priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
324 writel_bits_relaxed(VPP_OSD1_POSTBLEND, 0,
325 priv->io_base + _REG(VPP_MISC));
327 meson_plane->enabled = false;
328 priv->viu.osd1_enabled = false;
331 static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
332 .atomic_check = meson_plane_atomic_check,
333 .atomic_disable = meson_plane_atomic_disable,
334 .atomic_update = meson_plane_atomic_update,
335 .prepare_fb = drm_gem_fb_prepare_fb,
338 static const struct drm_plane_funcs meson_plane_funcs = {
339 .update_plane = drm_atomic_helper_update_plane,
340 .disable_plane = drm_atomic_helper_disable_plane,
341 .destroy = drm_plane_cleanup,
342 .reset = drm_atomic_helper_plane_reset,
343 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
344 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
347 static const uint32_t supported_drm_formats[] = {
354 int meson_plane_create(struct meson_drm *priv)
356 struct meson_plane *meson_plane;
357 struct drm_plane *plane;
359 meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
364 meson_plane->priv = priv;
365 plane = &meson_plane->base;
367 drm_universal_plane_init(priv->drm, plane, 0xFF,
369 supported_drm_formats,
370 ARRAY_SIZE(supported_drm_formats),
372 DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
374 drm_plane_helper_add(plane, &meson_plane_helper_funcs);
376 priv->primary_plane = plane;