Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 1 | /* exynos_drm_vidi.c |
| 2 | * |
| 3 | * Copyright (C) 2012 Samsung Electronics Co.Ltd |
| 4 | * Authors: |
| 5 | * Inki Dae <inki.dae@samsung.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your |
| 10 | * option) any later version. |
| 11 | * |
| 12 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 13 | #include <drm/drmP.h> |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 14 | |
| 15 | #include <linux/kernel.h> |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 16 | #include <linux/platform_device.h> |
| 17 | |
| 18 | #include <drm/exynos_drm.h> |
| 19 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 20 | #include <drm/drm_edid.h> |
| 21 | #include <drm/drm_crtc_helper.h> |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 22 | |
| 23 | #include "exynos_drm_drv.h" |
| 24 | #include "exynos_drm_crtc.h" |
| 25 | #include "exynos_drm_encoder.h" |
Mark Brown | e30655d | 2013-08-13 00:46:40 +0100 | [diff] [blame] | 26 | #include "exynos_drm_vidi.h" |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 27 | |
| 28 | /* vidi has totally three virtual windows. */ |
| 29 | #define WINDOWS_NR 3 |
| 30 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 31 | #define get_vidi_mgr(dev) platform_get_drvdata(to_platform_device(dev)) |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 32 | #define ctx_from_connector(c) container_of(c, struct vidi_context, \ |
| 33 | connector) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 34 | |
| 35 | struct vidi_win_data { |
| 36 | unsigned int offset_x; |
| 37 | unsigned int offset_y; |
| 38 | unsigned int ovl_width; |
| 39 | unsigned int ovl_height; |
| 40 | unsigned int fb_width; |
| 41 | unsigned int fb_height; |
| 42 | unsigned int bpp; |
| 43 | dma_addr_t dma_addr; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 44 | unsigned int buf_offsize; |
| 45 | unsigned int line_size; /* bytes */ |
| 46 | bool enabled; |
| 47 | }; |
| 48 | |
| 49 | struct vidi_context { |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 50 | struct drm_device *drm_dev; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 51 | struct drm_crtc *crtc; |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 52 | struct drm_encoder *encoder; |
| 53 | struct drm_connector connector; |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 54 | struct exynos_drm_subdrv subdrv; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 55 | struct vidi_win_data win_data[WINDOWS_NR]; |
| 56 | struct edid *raw_edid; |
| 57 | unsigned int clkdiv; |
| 58 | unsigned int default_win; |
| 59 | unsigned long irq_flags; |
| 60 | unsigned int connected; |
| 61 | bool vblank_on; |
| 62 | bool suspended; |
Inki Dae | 291257c | 2012-09-19 11:02:43 +0900 | [diff] [blame] | 63 | bool direct_vblank; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 64 | struct work_struct work; |
| 65 | struct mutex lock; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 66 | int pipe; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 67 | }; |
| 68 | |
| 69 | static const char fake_edid_info[] = { |
| 70 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x2d, 0x05, 0x05, |
| 71 | 0x00, 0x00, 0x00, 0x00, 0x30, 0x12, 0x01, 0x03, 0x80, 0x10, 0x09, 0x78, |
| 72 | 0x0a, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0xbd, |
| 73 | 0xee, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
| 74 | 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, |
| 75 | 0x1b, 0x30, 0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, |
| 76 | 0x01, 0x1d, 0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28, 0x55, 0x00, |
| 77 | 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, |
| 78 | 0x4b, 0x1a, 0x44, 0x17, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, |
| 79 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x53, 0x41, 0x4d, 0x53, 0x55, 0x4e, 0x47, |
| 80 | 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xbc, 0x02, 0x03, 0x1e, 0xf1, |
| 81 | 0x46, 0x84, 0x05, 0x03, 0x10, 0x20, 0x22, 0x23, 0x09, 0x07, 0x07, 0x83, |
| 82 | 0x01, 0x00, 0x00, 0xe2, 0x00, 0x0f, 0x67, 0x03, 0x0c, 0x00, 0x10, 0x00, |
| 83 | 0xb8, 0x2d, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16, 0x20, 0x58, 0x2c, |
| 84 | 0x25, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0, 0x8a, |
| 85 | 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00, 0xa0, 0x5a, 0x00, 0x00, |
| 86 | 0x00, 0x18, 0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, |
| 87 | 0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, |
| 88 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 89 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 90 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 91 | 0x00, 0x00, 0x00, 0x06 |
| 92 | }; |
| 93 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 94 | static void vidi_apply(struct exynos_drm_manager *mgr) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 95 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 96 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 97 | struct exynos_drm_manager_ops *mgr_ops = mgr->ops; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 98 | struct vidi_win_data *win_data; |
| 99 | int i; |
| 100 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 101 | for (i = 0; i < WINDOWS_NR; i++) { |
| 102 | win_data = &ctx->win_data[i]; |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 103 | if (win_data->enabled && (mgr_ops && mgr_ops->win_commit)) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 104 | mgr_ops->win_commit(mgr, i); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | if (mgr_ops && mgr_ops->commit) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 108 | mgr_ops->commit(mgr); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 109 | } |
| 110 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 111 | static void vidi_commit(struct exynos_drm_manager *mgr) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 112 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 113 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 114 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 115 | if (ctx->suspended) |
| 116 | return; |
| 117 | } |
| 118 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 119 | static int vidi_enable_vblank(struct exynos_drm_manager *mgr) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 120 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 121 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 122 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 123 | if (ctx->suspended) |
| 124 | return -EPERM; |
| 125 | |
| 126 | if (!test_and_set_bit(0, &ctx->irq_flags)) |
| 127 | ctx->vblank_on = true; |
| 128 | |
Inki Dae | 291257c | 2012-09-19 11:02:43 +0900 | [diff] [blame] | 129 | ctx->direct_vblank = true; |
| 130 | |
| 131 | /* |
| 132 | * in case of page flip request, vidi_finish_pageflip function |
| 133 | * will not be called because direct_vblank is true and then |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 134 | * that function will be called by manager_ops->win_commit callback |
Inki Dae | 291257c | 2012-09-19 11:02:43 +0900 | [diff] [blame] | 135 | */ |
| 136 | schedule_work(&ctx->work); |
| 137 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 138 | return 0; |
| 139 | } |
| 140 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 141 | static void vidi_disable_vblank(struct exynos_drm_manager *mgr) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 142 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 143 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 144 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 145 | if (ctx->suspended) |
| 146 | return; |
| 147 | |
| 148 | if (test_and_clear_bit(0, &ctx->irq_flags)) |
| 149 | ctx->vblank_on = false; |
| 150 | } |
| 151 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 152 | static void vidi_win_mode_set(struct exynos_drm_manager *mgr, |
| 153 | struct exynos_drm_overlay *overlay) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 154 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 155 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 156 | struct vidi_win_data *win_data; |
| 157 | int win; |
| 158 | unsigned long offset; |
| 159 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 160 | if (!overlay) { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 161 | DRM_ERROR("overlay is NULL\n"); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 162 | return; |
| 163 | } |
| 164 | |
| 165 | win = overlay->zpos; |
| 166 | if (win == DEFAULT_ZPOS) |
| 167 | win = ctx->default_win; |
| 168 | |
Inki Dae | a7f98d6 | 2013-05-28 16:01:21 +0900 | [diff] [blame] | 169 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 170 | return; |
| 171 | |
| 172 | offset = overlay->fb_x * (overlay->bpp >> 3); |
| 173 | offset += overlay->fb_y * overlay->pitch; |
| 174 | |
| 175 | DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch); |
| 176 | |
| 177 | win_data = &ctx->win_data[win]; |
| 178 | |
| 179 | win_data->offset_x = overlay->crtc_x; |
| 180 | win_data->offset_y = overlay->crtc_y; |
| 181 | win_data->ovl_width = overlay->crtc_width; |
| 182 | win_data->ovl_height = overlay->crtc_height; |
| 183 | win_data->fb_width = overlay->fb_width; |
| 184 | win_data->fb_height = overlay->fb_height; |
| 185 | win_data->dma_addr = overlay->dma_addr[0] + offset; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 186 | win_data->bpp = overlay->bpp; |
| 187 | win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) * |
| 188 | (overlay->bpp >> 3); |
| 189 | win_data->line_size = overlay->crtc_width * (overlay->bpp >> 3); |
| 190 | |
| 191 | /* |
| 192 | * some parts of win_data should be transferred to user side |
| 193 | * through specific ioctl. |
| 194 | */ |
| 195 | |
| 196 | DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n", |
| 197 | win_data->offset_x, win_data->offset_y); |
| 198 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", |
| 199 | win_data->ovl_width, win_data->ovl_height); |
YoungJun Cho | ddd8e95 | 2012-12-10 15:44:58 +0900 | [diff] [blame] | 200 | DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 201 | DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", |
| 202 | overlay->fb_width, overlay->crtc_width); |
| 203 | } |
| 204 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 205 | static void vidi_win_commit(struct exynos_drm_manager *mgr, int zpos) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 206 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 207 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 208 | struct vidi_win_data *win_data; |
| 209 | int win = zpos; |
| 210 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 211 | if (ctx->suspended) |
| 212 | return; |
| 213 | |
| 214 | if (win == DEFAULT_ZPOS) |
| 215 | win = ctx->default_win; |
| 216 | |
Inki Dae | a7f98d6 | 2013-05-28 16:01:21 +0900 | [diff] [blame] | 217 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 218 | return; |
| 219 | |
| 220 | win_data = &ctx->win_data[win]; |
| 221 | |
| 222 | win_data->enabled = true; |
| 223 | |
Jingoo Han | b8eade2 | 2014-04-22 14:45:32 +0900 | [diff] [blame] | 224 | DRM_DEBUG_KMS("dma_addr = %pad\n", &win_data->dma_addr); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 225 | |
| 226 | if (ctx->vblank_on) |
| 227 | schedule_work(&ctx->work); |
| 228 | } |
| 229 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 230 | static void vidi_win_disable(struct exynos_drm_manager *mgr, int zpos) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 231 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 232 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 233 | struct vidi_win_data *win_data; |
| 234 | int win = zpos; |
| 235 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 236 | if (win == DEFAULT_ZPOS) |
| 237 | win = ctx->default_win; |
| 238 | |
Inki Dae | a7f98d6 | 2013-05-28 16:01:21 +0900 | [diff] [blame] | 239 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 240 | return; |
| 241 | |
| 242 | win_data = &ctx->win_data[win]; |
| 243 | win_data->enabled = false; |
| 244 | |
| 245 | /* TODO. */ |
| 246 | } |
| 247 | |
Sean Paul | af65c80 | 2014-01-30 16:19:27 -0500 | [diff] [blame] | 248 | static int vidi_power_on(struct exynos_drm_manager *mgr, bool enable) |
| 249 | { |
| 250 | struct vidi_context *ctx = mgr->ctx; |
| 251 | |
| 252 | DRM_DEBUG_KMS("%s\n", __FILE__); |
| 253 | |
| 254 | if (enable != false && enable != true) |
| 255 | return -EINVAL; |
| 256 | |
| 257 | if (enable) { |
| 258 | ctx->suspended = false; |
| 259 | |
| 260 | /* if vblank was enabled status, enable it again. */ |
| 261 | if (test_and_clear_bit(0, &ctx->irq_flags)) |
| 262 | vidi_enable_vblank(mgr); |
| 263 | |
| 264 | vidi_apply(mgr); |
| 265 | } else { |
| 266 | ctx->suspended = true; |
| 267 | } |
| 268 | |
| 269 | return 0; |
| 270 | } |
| 271 | |
| 272 | static void vidi_dpms(struct exynos_drm_manager *mgr, int mode) |
| 273 | { |
| 274 | struct vidi_context *ctx = mgr->ctx; |
| 275 | |
| 276 | DRM_DEBUG_KMS("%d\n", mode); |
| 277 | |
| 278 | mutex_lock(&ctx->lock); |
| 279 | |
| 280 | switch (mode) { |
| 281 | case DRM_MODE_DPMS_ON: |
| 282 | vidi_power_on(mgr, true); |
| 283 | break; |
| 284 | case DRM_MODE_DPMS_STANDBY: |
| 285 | case DRM_MODE_DPMS_SUSPEND: |
| 286 | case DRM_MODE_DPMS_OFF: |
| 287 | vidi_power_on(mgr, false); |
| 288 | break; |
| 289 | default: |
| 290 | DRM_DEBUG_KMS("unspecified mode %d\n", mode); |
| 291 | break; |
| 292 | } |
| 293 | |
| 294 | mutex_unlock(&ctx->lock); |
| 295 | } |
| 296 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 297 | static int vidi_mgr_initialize(struct exynos_drm_manager *mgr, |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 298 | struct drm_device *drm_dev) |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 299 | { |
| 300 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 301 | struct exynos_drm_private *priv = drm_dev->dev_private; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 302 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 303 | mgr->drm_dev = ctx->drm_dev = drm_dev; |
| 304 | mgr->pipe = ctx->pipe = priv->pipe++; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 305 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 306 | return 0; |
| 307 | } |
| 308 | |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 309 | static struct exynos_drm_manager_ops vidi_manager_ops = { |
| 310 | .dpms = vidi_dpms, |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 311 | .commit = vidi_commit, |
| 312 | .enable_vblank = vidi_enable_vblank, |
| 313 | .disable_vblank = vidi_disable_vblank, |
| 314 | .win_mode_set = vidi_win_mode_set, |
| 315 | .win_commit = vidi_win_commit, |
| 316 | .win_disable = vidi_win_disable, |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 317 | }; |
| 318 | |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 319 | static struct exynos_drm_manager vidi_manager = { |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 320 | .type = EXYNOS_DISPLAY_TYPE_VIDI, |
| 321 | .ops = &vidi_manager_ops, |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 322 | }; |
| 323 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 324 | static void vidi_fake_vblank_handler(struct work_struct *work) |
| 325 | { |
| 326 | struct vidi_context *ctx = container_of(work, struct vidi_context, |
| 327 | work); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 328 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 329 | if (ctx->pipe < 0) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 330 | return; |
| 331 | |
| 332 | /* refresh rate is about 50Hz. */ |
| 333 | usleep_range(16000, 20000); |
| 334 | |
Inki Dae | 291257c | 2012-09-19 11:02:43 +0900 | [diff] [blame] | 335 | mutex_lock(&ctx->lock); |
| 336 | |
| 337 | if (ctx->direct_vblank) { |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 338 | drm_handle_vblank(ctx->drm_dev, ctx->pipe); |
Inki Dae | 291257c | 2012-09-19 11:02:43 +0900 | [diff] [blame] | 339 | ctx->direct_vblank = false; |
| 340 | mutex_unlock(&ctx->lock); |
| 341 | return; |
| 342 | } |
| 343 | |
| 344 | mutex_unlock(&ctx->lock); |
| 345 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 346 | exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 347 | } |
| 348 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 349 | static int vidi_show_connection(struct device *dev, |
| 350 | struct device_attribute *attr, char *buf) |
| 351 | { |
| 352 | int rc; |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 353 | struct exynos_drm_manager *mgr = get_vidi_mgr(dev); |
| 354 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 355 | |
| 356 | mutex_lock(&ctx->lock); |
| 357 | |
| 358 | rc = sprintf(buf, "%d\n", ctx->connected); |
| 359 | |
| 360 | mutex_unlock(&ctx->lock); |
| 361 | |
| 362 | return rc; |
| 363 | } |
| 364 | |
| 365 | static int vidi_store_connection(struct device *dev, |
| 366 | struct device_attribute *attr, |
| 367 | const char *buf, size_t len) |
| 368 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 369 | struct exynos_drm_manager *mgr = get_vidi_mgr(dev); |
| 370 | struct vidi_context *ctx = mgr->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 371 | int ret; |
| 372 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 373 | ret = kstrtoint(buf, 0, &ctx->connected); |
| 374 | if (ret) |
| 375 | return ret; |
| 376 | |
| 377 | if (ctx->connected > 1) |
| 378 | return -EINVAL; |
| 379 | |
Inki Dae | d07d39d | 2012-06-27 16:00:56 +0900 | [diff] [blame] | 380 | /* use fake edid data for test. */ |
| 381 | if (!ctx->raw_edid) |
| 382 | ctx->raw_edid = (struct edid *)fake_edid_info; |
| 383 | |
Inki Dae | d7b8478 | 2012-06-27 16:16:26 +0900 | [diff] [blame] | 384 | /* if raw_edid isn't same as fake data then it can't be tested. */ |
| 385 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
| 386 | DRM_DEBUG_KMS("edid data is not fake data.\n"); |
| 387 | return -EINVAL; |
| 388 | } |
| 389 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 390 | DRM_DEBUG_KMS("requested connection.\n"); |
| 391 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 392 | drm_helper_hpd_irq_event(ctx->drm_dev); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 393 | |
| 394 | return len; |
| 395 | } |
| 396 | |
| 397 | static DEVICE_ATTR(connection, 0644, vidi_show_connection, |
| 398 | vidi_store_connection); |
| 399 | |
| 400 | int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, |
| 401 | struct drm_file *file_priv) |
| 402 | { |
| 403 | struct vidi_context *ctx = NULL; |
| 404 | struct drm_encoder *encoder; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 405 | struct exynos_drm_display *display; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 406 | struct drm_exynos_vidi_connection *vidi = data; |
| 407 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 408 | if (!vidi) { |
| 409 | DRM_DEBUG_KMS("user data for vidi is null.\n"); |
| 410 | return -EINVAL; |
| 411 | } |
| 412 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 413 | if (vidi->connection > 1) { |
| 414 | DRM_DEBUG_KMS("connection should be 0 or 1.\n"); |
| 415 | return -EINVAL; |
| 416 | } |
| 417 | |
| 418 | list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list, |
| 419 | head) { |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 420 | display = exynos_drm_get_display(encoder); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 421 | |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 422 | if (display->type == EXYNOS_DISPLAY_TYPE_VIDI) { |
| 423 | ctx = display->ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 424 | break; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | if (!ctx) { |
| 429 | DRM_DEBUG_KMS("not found virtual device type encoder.\n"); |
| 430 | return -EINVAL; |
| 431 | } |
| 432 | |
| 433 | if (ctx->connected == vidi->connection) { |
| 434 | DRM_DEBUG_KMS("same connection request.\n"); |
| 435 | return -EINVAL; |
| 436 | } |
| 437 | |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 438 | if (vidi->connection) { |
Seung-Woo Kim | e7808df | 2013-01-10 19:35:06 +0900 | [diff] [blame] | 439 | struct edid *raw_edid = (struct edid *)(uint32_t)vidi->edid; |
| 440 | if (!drm_edid_is_valid(raw_edid)) { |
| 441 | DRM_DEBUG_KMS("edid data is invalid.\n"); |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 442 | return -EINVAL; |
| 443 | } |
Jani Nikula | 4ddc773 | 2013-09-27 15:08:29 +0300 | [diff] [blame] | 444 | ctx->raw_edid = drm_edid_duplicate(raw_edid); |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 445 | if (!ctx->raw_edid) { |
| 446 | DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); |
| 447 | return -ENOMEM; |
| 448 | } |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 449 | } else { |
| 450 | /* |
| 451 | * with connection = 0, free raw_edid |
| 452 | * only if raw edid data isn't same as fake data. |
| 453 | */ |
| 454 | if (ctx->raw_edid && ctx->raw_edid != |
| 455 | (struct edid *)fake_edid_info) { |
| 456 | kfree(ctx->raw_edid); |
| 457 | ctx->raw_edid = NULL; |
| 458 | } |
| 459 | } |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 460 | |
| 461 | ctx->connected = vidi->connection; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 462 | drm_helper_hpd_irq_event(ctx->drm_dev); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 463 | |
| 464 | return 0; |
| 465 | } |
| 466 | |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 467 | static enum drm_connector_status vidi_detect(struct drm_connector *connector, |
| 468 | bool force) |
| 469 | { |
| 470 | struct vidi_context *ctx = ctx_from_connector(connector); |
| 471 | |
| 472 | /* |
| 473 | * connection request would come from user side |
| 474 | * to do hotplug through specific ioctl. |
| 475 | */ |
| 476 | return ctx->connected ? connector_status_connected : |
| 477 | connector_status_disconnected; |
| 478 | } |
| 479 | |
| 480 | static void vidi_connector_destroy(struct drm_connector *connector) |
| 481 | { |
| 482 | } |
| 483 | |
| 484 | static struct drm_connector_funcs vidi_connector_funcs = { |
| 485 | .dpms = drm_helper_connector_dpms, |
| 486 | .fill_modes = drm_helper_probe_single_connector_modes, |
| 487 | .detect = vidi_detect, |
| 488 | .destroy = vidi_connector_destroy, |
| 489 | }; |
| 490 | |
| 491 | static int vidi_get_modes(struct drm_connector *connector) |
| 492 | { |
| 493 | struct vidi_context *ctx = ctx_from_connector(connector); |
| 494 | struct edid *edid; |
| 495 | int edid_len; |
| 496 | |
| 497 | /* |
| 498 | * the edid data comes from user side and it would be set |
| 499 | * to ctx->raw_edid through specific ioctl. |
| 500 | */ |
| 501 | if (!ctx->raw_edid) { |
| 502 | DRM_DEBUG_KMS("raw_edid is null.\n"); |
| 503 | return -EFAULT; |
| 504 | } |
| 505 | |
| 506 | edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; |
| 507 | edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); |
| 508 | if (!edid) { |
| 509 | DRM_DEBUG_KMS("failed to allocate edid\n"); |
| 510 | return -ENOMEM; |
| 511 | } |
| 512 | |
| 513 | drm_mode_connector_update_edid_property(connector, edid); |
| 514 | |
| 515 | return drm_add_edid_modes(connector, edid); |
| 516 | } |
| 517 | |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 518 | static struct drm_encoder *vidi_best_encoder(struct drm_connector *connector) |
| 519 | { |
| 520 | struct vidi_context *ctx = ctx_from_connector(connector); |
| 521 | |
| 522 | return ctx->encoder; |
| 523 | } |
| 524 | |
| 525 | static struct drm_connector_helper_funcs vidi_connector_helper_funcs = { |
| 526 | .get_modes = vidi_get_modes, |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 527 | .best_encoder = vidi_best_encoder, |
| 528 | }; |
| 529 | |
| 530 | static int vidi_create_connector(struct exynos_drm_display *display, |
| 531 | struct drm_encoder *encoder) |
| 532 | { |
| 533 | struct vidi_context *ctx = display->ctx; |
| 534 | struct drm_connector *connector = &ctx->connector; |
| 535 | int ret; |
| 536 | |
| 537 | ctx->encoder = encoder; |
| 538 | connector->polled = DRM_CONNECTOR_POLL_HPD; |
| 539 | |
| 540 | ret = drm_connector_init(ctx->drm_dev, connector, |
| 541 | &vidi_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); |
| 542 | if (ret) { |
| 543 | DRM_ERROR("Failed to initialize connector with drm\n"); |
| 544 | return ret; |
| 545 | } |
| 546 | |
| 547 | drm_connector_helper_add(connector, &vidi_connector_helper_funcs); |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 548 | drm_connector_register(connector); |
Sean Paul | ce6cb55 | 2014-01-30 16:38:07 -0500 | [diff] [blame] | 549 | drm_mode_connector_attach_encoder(connector, encoder); |
| 550 | |
| 551 | return 0; |
| 552 | } |
| 553 | |
| 554 | |
| 555 | static struct exynos_drm_display_ops vidi_display_ops = { |
| 556 | .create_connector = vidi_create_connector, |
| 557 | }; |
| 558 | |
| 559 | static struct exynos_drm_display vidi_display = { |
| 560 | .type = EXYNOS_DISPLAY_TYPE_VIDI, |
| 561 | .ops = &vidi_display_ops, |
| 562 | }; |
| 563 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 564 | static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev) |
| 565 | { |
| 566 | struct exynos_drm_manager *mgr = get_vidi_mgr(dev); |
| 567 | struct vidi_context *ctx = mgr->ctx; |
| 568 | struct drm_crtc *crtc = ctx->crtc; |
| 569 | int ret; |
| 570 | |
| 571 | vidi_mgr_initialize(mgr, drm_dev); |
| 572 | |
| 573 | ret = exynos_drm_crtc_create(&vidi_manager); |
| 574 | if (ret) { |
| 575 | DRM_ERROR("failed to create crtc.\n"); |
| 576 | return ret; |
| 577 | } |
| 578 | |
| 579 | ret = exynos_drm_create_enc_conn(drm_dev, &vidi_display); |
| 580 | if (ret) { |
| 581 | crtc->funcs->destroy(crtc); |
| 582 | DRM_ERROR("failed to create encoder and connector.\n"); |
| 583 | return ret; |
| 584 | } |
| 585 | |
| 586 | return 0; |
| 587 | } |
| 588 | |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 589 | static int vidi_probe(struct platform_device *pdev) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 590 | { |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 591 | struct exynos_drm_subdrv *subdrv; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 592 | struct vidi_context *ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 593 | int ret; |
| 594 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 595 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 596 | if (!ctx) |
| 597 | return -ENOMEM; |
| 598 | |
| 599 | ctx->default_win = 0; |
| 600 | |
| 601 | INIT_WORK(&ctx->work, vidi_fake_vblank_handler); |
| 602 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 603 | vidi_manager.ctx = ctx; |
Sean Paul | 080be03d | 2014-02-19 21:02:55 +0900 | [diff] [blame] | 604 | vidi_display.ctx = ctx; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 605 | |
| 606 | mutex_init(&ctx->lock); |
| 607 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame] | 608 | platform_set_drvdata(pdev, &vidi_manager); |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 609 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 610 | subdrv = &ctx->subdrv; |
| 611 | subdrv->dev = &pdev->dev; |
| 612 | subdrv->probe = vidi_subdrv_probe; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 613 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 614 | ret = exynos_drm_subdrv_register(subdrv); |
| 615 | if (ret < 0) { |
| 616 | dev_err(&pdev->dev, "failed to register drm vidi device\n"); |
| 617 | return ret; |
| 618 | } |
| 619 | |
| 620 | ret = device_create_file(&pdev->dev, &dev_attr_connection); |
| 621 | if (ret < 0) { |
| 622 | exynos_drm_subdrv_unregister(subdrv); |
| 623 | DRM_INFO("failed to create connection sysfs.\n"); |
| 624 | } |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 625 | |
| 626 | return 0; |
| 627 | } |
| 628 | |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 629 | static int vidi_remove(struct platform_device *pdev) |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 630 | { |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 631 | struct exynos_drm_manager *mgr = platform_get_drvdata(pdev); |
| 632 | struct vidi_context *ctx = mgr->ctx; |
| 633 | struct drm_encoder *encoder = ctx->encoder; |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 634 | |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 635 | if (ctx->raw_edid != (struct edid *)fake_edid_info) { |
| 636 | kfree(ctx->raw_edid); |
| 637 | ctx->raw_edid = NULL; |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 638 | |
| 639 | return -EINVAL; |
Inki Dae | d3b62db | 2012-06-27 16:36:12 +0900 | [diff] [blame] | 640 | } |
| 641 | |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 642 | encoder->funcs->destroy(encoder); |
| 643 | drm_connector_cleanup(&ctx->connector); |
| 644 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 645 | return 0; |
| 646 | } |
| 647 | |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 648 | struct platform_driver vidi_driver = { |
| 649 | .probe = vidi_probe, |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 650 | .remove = vidi_remove, |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 651 | .driver = { |
| 652 | .name = "exynos-drm-vidi", |
| 653 | .owner = THIS_MODULE, |
Inki Dae | b73d123 | 2012-03-21 10:55:26 +0900 | [diff] [blame] | 654 | }, |
| 655 | }; |
Inki Dae | f37cd5e | 2014-05-09 14:25:20 +0900 | [diff] [blame] | 656 | |
| 657 | int exynos_drm_probe_vidi(void) |
| 658 | { |
| 659 | struct platform_device *pdev; |
| 660 | int ret; |
| 661 | |
| 662 | pdev = platform_device_register_simple("exynos-drm-vidi", -1, NULL, 0); |
| 663 | if (IS_ERR(pdev)) |
| 664 | return PTR_ERR(pdev); |
| 665 | |
| 666 | ret = platform_driver_register(&vidi_driver); |
| 667 | if (ret) { |
| 668 | platform_device_unregister(pdev); |
| 669 | return ret; |
| 670 | } |
| 671 | |
| 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | void exynos_drm_remove_vidi(void) |
| 676 | { |
| 677 | struct vidi_context *ctx = vidi_manager.ctx; |
| 678 | struct exynos_drm_subdrv *subdrv = &ctx->subdrv; |
| 679 | struct platform_device *pdev = to_platform_device(subdrv->dev); |
| 680 | |
| 681 | platform_driver_unregister(&vidi_driver); |
| 682 | platform_device_unregister(pdev); |
| 683 | } |