Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1 | /* exynos_drm_fimd.c |
| 2 | * |
| 3 | * Copyright (C) 2011 Samsung Electronics Co.Ltd |
| 4 | * Authors: |
| 5 | * Joonyoung Shim <jy0922.shim@samsung.com> |
| 6 | * Inki Dae <inki.dae@samsung.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | * |
| 13 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 14 | #include <drm/drmP.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 15 | |
| 16 | #include <linux/kernel.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 17 | #include <linux/platform_device.h> |
| 18 | #include <linux/clk.h> |
Sachin Kamat | 3f1c781 | 2013-08-14 16:38:01 +0530 | [diff] [blame] | 19 | #include <linux/of.h> |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 20 | #include <linux/of_device.h> |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 21 | #include <linux/pm_runtime.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 22 | |
Vikas Sajjan | 7f4596f | 2013-03-07 12:15:21 +0530 | [diff] [blame] | 23 | #include <video/of_display_timing.h> |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 24 | #include <video/of_videomode.h> |
Leela Krishna Amudala | 5a213a5 | 2012-08-08 09:44:49 +0900 | [diff] [blame] | 25 | #include <video/samsung_fimd.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 26 | #include <drm/exynos_drm.h> |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 27 | |
| 28 | #include "exynos_drm_drv.h" |
| 29 | #include "exynos_drm_fbdev.h" |
| 30 | #include "exynos_drm_crtc.h" |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 31 | #include "exynos_drm_iommu.h" |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 32 | |
| 33 | /* |
Sachin Kamat | b8654b3 | 2013-09-19 10:39:44 +0530 | [diff] [blame] | 34 | * FIMD stands for Fully Interactive Mobile Display and |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 35 | * as a display controller, it transfers contents drawn on memory |
| 36 | * to a LCD Panel through Display Interfaces such as RGB or |
| 37 | * CPU Interface. |
| 38 | */ |
| 39 | |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 40 | #define FIMD_DEFAULT_FRAMERATE 60 |
| 41 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 42 | /* position control register for hardware window 0, 2 ~ 4.*/ |
| 43 | #define VIDOSD_A(win) (VIDOSD_BASE + 0x00 + (win) * 16) |
| 44 | #define VIDOSD_B(win) (VIDOSD_BASE + 0x04 + (win) * 16) |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 45 | /* |
| 46 | * size control register for hardware windows 0 and alpha control register |
| 47 | * for hardware windows 1 ~ 4 |
| 48 | */ |
| 49 | #define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) |
| 50 | /* size control register for hardware windows 1 ~ 2. */ |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 51 | #define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) |
| 52 | |
| 53 | #define VIDWx_BUF_START(win, buf) (VIDW_BUF_START(buf) + (win) * 8) |
| 54 | #define VIDWx_BUF_END(win, buf) (VIDW_BUF_END(buf) + (win) * 8) |
| 55 | #define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) |
| 56 | |
| 57 | /* color key control register for hardware window 1 ~ 4. */ |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 58 | #define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + ((x - 1) * 8)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 59 | /* color key value register for hardware window 1 ~ 4. */ |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 60 | #define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + ((x - 1) * 8)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 61 | |
| 62 | /* FIMD has totally five hardware windows. */ |
| 63 | #define WINDOWS_NR 5 |
| 64 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 65 | #define get_fimd_manager(mgr) platform_get_drvdata(to_platform_device(dev)) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 66 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 67 | struct fimd_driver_data { |
| 68 | unsigned int timing_base; |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 69 | |
| 70 | unsigned int has_shadowcon:1; |
Tomasz Figa | 411d9ed | 2013-05-01 21:02:28 +0200 | [diff] [blame] | 71 | unsigned int has_clksel:1; |
Inki Dae | 5cc4621 | 2013-08-20 14:28:56 +0900 | [diff] [blame] | 72 | unsigned int has_limited_fmt:1; |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 73 | }; |
| 74 | |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 75 | static struct fimd_driver_data s3c64xx_fimd_driver_data = { |
| 76 | .timing_base = 0x0, |
| 77 | .has_clksel = 1, |
Inki Dae | 5cc4621 | 2013-08-20 14:28:56 +0900 | [diff] [blame] | 78 | .has_limited_fmt = 1, |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 79 | }; |
| 80 | |
Sachin Kamat | 6ecf18f | 2012-11-19 15:22:54 +0530 | [diff] [blame] | 81 | static struct fimd_driver_data exynos4_fimd_driver_data = { |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 82 | .timing_base = 0x0, |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 83 | .has_shadowcon = 1, |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 84 | }; |
| 85 | |
Sachin Kamat | 6ecf18f | 2012-11-19 15:22:54 +0530 | [diff] [blame] | 86 | static struct fimd_driver_data exynos5_fimd_driver_data = { |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 87 | .timing_base = 0x20000, |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 88 | .has_shadowcon = 1, |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 89 | }; |
| 90 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 91 | struct fimd_win_data { |
| 92 | unsigned int offset_x; |
| 93 | unsigned int offset_y; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 94 | unsigned int ovl_width; |
| 95 | unsigned int ovl_height; |
| 96 | unsigned int fb_width; |
| 97 | unsigned int fb_height; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 98 | unsigned int bpp; |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 99 | unsigned int pixel_format; |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 100 | dma_addr_t dma_addr; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 101 | unsigned int buf_offsize; |
| 102 | unsigned int line_size; /* bytes */ |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 103 | bool enabled; |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 104 | bool resume; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | struct fimd_context { |
| 108 | struct exynos_drm_subdrv subdrv; |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 109 | struct device *dev; |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 110 | struct drm_device *drm_dev; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 111 | int irq; |
| 112 | struct drm_crtc *crtc; |
| 113 | struct clk *bus_clk; |
| 114 | struct clk *lcd_clk; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 115 | void __iomem *regs; |
| 116 | struct fimd_win_data win_data[WINDOWS_NR]; |
| 117 | unsigned int clkdiv; |
| 118 | unsigned int default_win; |
| 119 | unsigned long irq_flags; |
| 120 | u32 vidcon0; |
| 121 | u32 vidcon1; |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 122 | bool suspended; |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 123 | struct mutex lock; |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 124 | wait_queue_head_t wait_vsync_queue; |
| 125 | atomic_t wait_vsync_event; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 126 | |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 127 | struct exynos_drm_panel_info panel; |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 128 | struct fimd_driver_data *driver_data; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 129 | }; |
| 130 | |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 131 | static const struct of_device_id fimd_driver_dt_match[] = { |
Tomasz Figa | 725ddea | 2013-05-01 21:02:29 +0200 | [diff] [blame] | 132 | { .compatible = "samsung,s3c6400-fimd", |
| 133 | .data = &s3c64xx_fimd_driver_data }, |
Vikas Sajjan | 5830daf | 2013-02-27 16:02:58 +0530 | [diff] [blame] | 134 | { .compatible = "samsung,exynos4210-fimd", |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 135 | .data = &exynos4_fimd_driver_data }, |
Vikas Sajjan | 5830daf | 2013-02-27 16:02:58 +0530 | [diff] [blame] | 136 | { .compatible = "samsung,exynos5250-fimd", |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 137 | .data = &exynos5_fimd_driver_data }, |
| 138 | {}, |
| 139 | }; |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 140 | |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 141 | static inline struct fimd_driver_data *drm_fimd_get_driver_data( |
| 142 | struct platform_device *pdev) |
| 143 | { |
Joonyoung Shim | d636ead | 2012-12-14 15:48:25 +0900 | [diff] [blame] | 144 | const struct of_device_id *of_id = |
| 145 | of_match_device(fimd_driver_dt_match, &pdev->dev); |
| 146 | |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 147 | return (struct fimd_driver_data *)of_id->data; |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 148 | } |
| 149 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 150 | static bool fimd_display_is_connected(struct device *dev) |
| 151 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 152 | /* TODO. */ |
| 153 | |
| 154 | return true; |
| 155 | } |
| 156 | |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 157 | static void *fimd_get_panel(struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 158 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 159 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
| 160 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 161 | |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 162 | return &ctx->panel; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 163 | } |
| 164 | |
Rahul Sharma | 16844fb | 2013-06-10 14:50:00 +0530 | [diff] [blame] | 165 | static int fimd_check_mode(struct device *dev, struct drm_display_mode *mode) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 166 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 167 | /* TODO. */ |
| 168 | |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | static int fimd_display_power_on(struct device *dev, int mode) |
| 173 | { |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 174 | /* TODO */ |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
Inki Dae | 74ccc53 | 2011-10-19 17:23:07 +0900 | [diff] [blame] | 179 | static struct exynos_drm_display_ops fimd_display_ops = { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 180 | .type = EXYNOS_DISPLAY_TYPE_LCD, |
| 181 | .is_connected = fimd_display_is_connected, |
Eun-Chul Kim | 607c50d | 2012-02-14 15:59:46 +0900 | [diff] [blame] | 182 | .get_panel = fimd_get_panel, |
Rahul Sharma | 16844fb | 2013-06-10 14:50:00 +0530 | [diff] [blame] | 183 | .check_mode = fimd_check_mode, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 184 | .power_on = fimd_display_power_on, |
| 185 | }; |
| 186 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 187 | static int fimd_mgr_initialize(struct exynos_drm_manager *mgr, |
| 188 | struct drm_device *drm_dev) |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 189 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 190 | struct fimd_context *ctx = mgr->ctx; |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 191 | |
| 192 | ctx->drm_dev = drm_dev; |
| 193 | |
| 194 | return 0; |
| 195 | } |
| 196 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 197 | static void fimd_dpms(struct exynos_drm_manager *mgr, int mode) |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 198 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 199 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 200 | |
YoungJun Cho | bca34c9 | 2013-06-12 10:40:52 +0900 | [diff] [blame] | 201 | DRM_DEBUG_KMS("%d\n", mode); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 202 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 203 | mutex_lock(&ctx->lock); |
| 204 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 205 | switch (mode) { |
| 206 | case DRM_MODE_DPMS_ON: |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 207 | /* |
| 208 | * enable fimd hardware only if suspended status. |
| 209 | * |
| 210 | * P.S. fimd_dpms function would be called at booting time so |
| 211 | * clk_enable could be called double time. |
| 212 | */ |
| 213 | if (ctx->suspended) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 214 | pm_runtime_get_sync(ctx->dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 215 | break; |
| 216 | case DRM_MODE_DPMS_STANDBY: |
| 217 | case DRM_MODE_DPMS_SUSPEND: |
| 218 | case DRM_MODE_DPMS_OFF: |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 219 | if (!ctx->suspended) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 220 | pm_runtime_put_sync(ctx->dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 221 | break; |
| 222 | default: |
| 223 | DRM_DEBUG_KMS("unspecified mode %d\n", mode); |
| 224 | break; |
| 225 | } |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 226 | |
| 227 | mutex_unlock(&ctx->lock); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 228 | } |
| 229 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 230 | static void fimd_apply(struct exynos_drm_manager *mgr) |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 231 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 232 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 233 | struct exynos_drm_manager_ops *mgr_ops = mgr->ops; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 234 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 235 | int i; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 236 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 237 | for (i = 0; i < WINDOWS_NR; i++) { |
| 238 | win_data = &ctx->win_data[i]; |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 239 | if (win_data->enabled && (mgr_ops && mgr_ops->win_commit)) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 240 | mgr_ops->win_commit(mgr, i); |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 241 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 242 | |
| 243 | if (mgr_ops && mgr_ops->commit) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 244 | mgr_ops->commit(mgr); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 245 | } |
| 246 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 247 | static void fimd_commit(struct exynos_drm_manager *mgr) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 248 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 249 | struct fimd_context *ctx = mgr->ctx; |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 250 | struct exynos_drm_panel_info *panel = &ctx->panel; |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 251 | struct videomode *vm = &panel->vm; |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 252 | struct fimd_driver_data *driver_data; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 253 | u32 val; |
| 254 | |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 255 | driver_data = ctx->driver_data; |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 256 | if (ctx->suspended) |
| 257 | return; |
| 258 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 259 | /* setup polarity values from machine code. */ |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 260 | writel(ctx->vidcon1, ctx->regs + driver_data->timing_base + VIDCON1); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 261 | |
| 262 | /* setup vertical timing values. */ |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 263 | val = VIDTCON0_VBPD(vm->vback_porch - 1) | |
| 264 | VIDTCON0_VFPD(vm->vfront_porch - 1) | |
| 265 | VIDTCON0_VSPW(vm->vsync_len - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 266 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 267 | |
| 268 | /* setup horizontal timing values. */ |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 269 | val = VIDTCON1_HBPD(vm->hback_porch - 1) | |
| 270 | VIDTCON1_HFPD(vm->hfront_porch - 1) | |
| 271 | VIDTCON1_HSPW(vm->hsync_len - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 272 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON1); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 273 | |
| 274 | /* setup horizontal and vertical display size. */ |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 275 | val = VIDTCON2_LINEVAL(vm->vactive - 1) | |
| 276 | VIDTCON2_HOZVAL(vm->hactive - 1) | |
| 277 | VIDTCON2_LINEVAL_E(vm->vactive - 1) | |
| 278 | VIDTCON2_HOZVAL_E(vm->hactive - 1); |
Leela Krishna Amudala | e2e1338 | 2012-09-21 16:52:15 +0530 | [diff] [blame] | 279 | writel(val, ctx->regs + driver_data->timing_base + VIDTCON2); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 280 | |
| 281 | /* setup clock source, clock divider, enable dma. */ |
| 282 | val = ctx->vidcon0; |
| 283 | val &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); |
| 284 | |
Tomasz Figa | 411d9ed | 2013-05-01 21:02:28 +0200 | [diff] [blame] | 285 | if (ctx->driver_data->has_clksel) { |
| 286 | val &= ~VIDCON0_CLKSEL_MASK; |
| 287 | val |= VIDCON0_CLKSEL_LCD; |
| 288 | } |
| 289 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 290 | if (ctx->clkdiv > 1) |
| 291 | val |= VIDCON0_CLKVAL_F(ctx->clkdiv - 1) | VIDCON0_CLKDIR; |
| 292 | else |
| 293 | val &= ~VIDCON0_CLKDIR; /* 1:1 clock */ |
| 294 | |
| 295 | /* |
| 296 | * fields of register with prefix '_F' would be updated |
| 297 | * at vsync(same as dma start) |
| 298 | */ |
| 299 | val |= VIDCON0_ENVID | VIDCON0_ENVID_F; |
| 300 | writel(val, ctx->regs + VIDCON0); |
| 301 | } |
| 302 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 303 | static int fimd_enable_vblank(struct exynos_drm_manager *mgr) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 304 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 305 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 306 | u32 val; |
| 307 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 308 | if (ctx->suspended) |
| 309 | return -EPERM; |
| 310 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 311 | if (!test_and_set_bit(0, &ctx->irq_flags)) { |
| 312 | val = readl(ctx->regs + VIDINTCON0); |
| 313 | |
| 314 | val |= VIDINTCON0_INT_ENABLE; |
| 315 | val |= VIDINTCON0_INT_FRAME; |
| 316 | |
| 317 | val &= ~VIDINTCON0_FRAMESEL0_MASK; |
| 318 | val |= VIDINTCON0_FRAMESEL0_VSYNC; |
| 319 | val &= ~VIDINTCON0_FRAMESEL1_MASK; |
| 320 | val |= VIDINTCON0_FRAMESEL1_NONE; |
| 321 | |
| 322 | writel(val, ctx->regs + VIDINTCON0); |
| 323 | } |
| 324 | |
| 325 | return 0; |
| 326 | } |
| 327 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 328 | static void fimd_disable_vblank(struct exynos_drm_manager *mgr) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 329 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 330 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 331 | u32 val; |
| 332 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 333 | if (ctx->suspended) |
| 334 | return; |
| 335 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 336 | if (test_and_clear_bit(0, &ctx->irq_flags)) { |
| 337 | val = readl(ctx->regs + VIDINTCON0); |
| 338 | |
| 339 | val &= ~VIDINTCON0_INT_FRAME; |
| 340 | val &= ~VIDINTCON0_INT_ENABLE; |
| 341 | |
| 342 | writel(val, ctx->regs + VIDINTCON0); |
| 343 | } |
| 344 | } |
| 345 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 346 | static void fimd_wait_for_vblank(struct exynos_drm_manager *mgr) |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 347 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 348 | struct fimd_context *ctx = mgr->ctx; |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 349 | |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 350 | if (ctx->suspended) |
| 351 | return; |
| 352 | |
| 353 | atomic_set(&ctx->wait_vsync_event, 1); |
| 354 | |
| 355 | /* |
| 356 | * wait for FIMD to signal VSYNC interrupt or return after |
| 357 | * timeout which is set to 50ms (refresh rate of 20). |
| 358 | */ |
| 359 | if (!wait_event_timeout(ctx->wait_vsync_queue, |
| 360 | !atomic_read(&ctx->wait_vsync_event), |
Seung-Woo Kim | 8dd9ad5 | 2013-12-30 16:01:29 +0900 | [diff] [blame] | 361 | HZ/20)) |
Prathyush K | 0703397 | 2012-12-06 20:16:02 +0530 | [diff] [blame] | 362 | DRM_DEBUG_KMS("vblank wait timed out.\n"); |
| 363 | } |
| 364 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 365 | static void fimd_win_mode_set(struct exynos_drm_manager *mgr, |
| 366 | struct exynos_drm_overlay *overlay) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 367 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 368 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 369 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 370 | int win; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 371 | unsigned long offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 372 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 373 | if (!overlay) { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 374 | DRM_ERROR("overlay is NULL\n"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 375 | return; |
| 376 | } |
| 377 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 378 | win = overlay->zpos; |
| 379 | if (win == DEFAULT_ZPOS) |
| 380 | win = ctx->default_win; |
| 381 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 382 | if (win < 0 || win >= WINDOWS_NR) |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 383 | return; |
| 384 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 385 | offset = overlay->fb_x * (overlay->bpp >> 3); |
| 386 | offset += overlay->fb_y * overlay->pitch; |
| 387 | |
| 388 | DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch); |
| 389 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 390 | win_data = &ctx->win_data[win]; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 391 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 392 | win_data->offset_x = overlay->crtc_x; |
| 393 | win_data->offset_y = overlay->crtc_y; |
| 394 | win_data->ovl_width = overlay->crtc_width; |
| 395 | win_data->ovl_height = overlay->crtc_height; |
| 396 | win_data->fb_width = overlay->fb_width; |
| 397 | win_data->fb_height = overlay->fb_height; |
Seung-Woo Kim | 229d353 | 2011-12-15 14:36:22 +0900 | [diff] [blame] | 398 | win_data->dma_addr = overlay->dma_addr[0] + offset; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 399 | win_data->bpp = overlay->bpp; |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 400 | win_data->pixel_format = overlay->pixel_format; |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 401 | win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) * |
| 402 | (overlay->bpp >> 3); |
| 403 | win_data->line_size = overlay->crtc_width * (overlay->bpp >> 3); |
| 404 | |
| 405 | DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n", |
| 406 | win_data->offset_x, win_data->offset_y); |
| 407 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", |
| 408 | win_data->ovl_width, win_data->ovl_height); |
YoungJun Cho | ddd8e95 | 2012-12-10 15:44:58 +0900 | [diff] [blame] | 409 | DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 410 | DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", |
| 411 | overlay->fb_width, overlay->crtc_width); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 412 | } |
| 413 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 414 | static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 415 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 416 | struct fimd_win_data *win_data = &ctx->win_data[win]; |
| 417 | unsigned long val; |
| 418 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 419 | val = WINCONx_ENWIN; |
| 420 | |
Inki Dae | 5cc4621 | 2013-08-20 14:28:56 +0900 | [diff] [blame] | 421 | /* |
| 422 | * In case of s3c64xx, window 0 doesn't support alpha channel. |
| 423 | * So the request format is ARGB8888 then change it to XRGB8888. |
| 424 | */ |
| 425 | if (ctx->driver_data->has_limited_fmt && !win) { |
| 426 | if (win_data->pixel_format == DRM_FORMAT_ARGB8888) |
| 427 | win_data->pixel_format = DRM_FORMAT_XRGB8888; |
| 428 | } |
| 429 | |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 430 | switch (win_data->pixel_format) { |
| 431 | case DRM_FORMAT_C8: |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 432 | val |= WINCON0_BPPMODE_8BPP_PALETTE; |
| 433 | val |= WINCONx_BURSTLEN_8WORD; |
| 434 | val |= WINCONx_BYTSWP; |
| 435 | break; |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 436 | case DRM_FORMAT_XRGB1555: |
| 437 | val |= WINCON0_BPPMODE_16BPP_1555; |
| 438 | val |= WINCONx_HAWSWP; |
| 439 | val |= WINCONx_BURSTLEN_16WORD; |
| 440 | break; |
| 441 | case DRM_FORMAT_RGB565: |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 442 | val |= WINCON0_BPPMODE_16BPP_565; |
| 443 | val |= WINCONx_HAWSWP; |
| 444 | val |= WINCONx_BURSTLEN_16WORD; |
| 445 | break; |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 446 | case DRM_FORMAT_XRGB8888: |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 447 | val |= WINCON0_BPPMODE_24BPP_888; |
| 448 | val |= WINCONx_WSWP; |
| 449 | val |= WINCONx_BURSTLEN_16WORD; |
| 450 | break; |
Inki Dae | a4f38a8 | 2013-08-20 13:51:02 +0900 | [diff] [blame] | 451 | case DRM_FORMAT_ARGB8888: |
| 452 | val |= WINCON1_BPPMODE_25BPP_A1888 |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 453 | | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL; |
| 454 | val |= WINCONx_WSWP; |
| 455 | val |= WINCONx_BURSTLEN_16WORD; |
| 456 | break; |
| 457 | default: |
| 458 | DRM_DEBUG_KMS("invalid pixel size so using unpacked 24bpp.\n"); |
| 459 | |
| 460 | val |= WINCON0_BPPMODE_24BPP_888; |
| 461 | val |= WINCONx_WSWP; |
| 462 | val |= WINCONx_BURSTLEN_16WORD; |
| 463 | break; |
| 464 | } |
| 465 | |
| 466 | DRM_DEBUG_KMS("bpp = %d\n", win_data->bpp); |
| 467 | |
| 468 | writel(val, ctx->regs + WINCON(win)); |
| 469 | } |
| 470 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 471 | static void fimd_win_set_colkey(struct fimd_context *ctx, unsigned int win) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 472 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 473 | unsigned int keycon0 = 0, keycon1 = 0; |
| 474 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 475 | keycon0 = ~(WxKEYCON0_KEYBL_EN | WxKEYCON0_KEYEN_F | |
| 476 | WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0); |
| 477 | |
| 478 | keycon1 = WxKEYCON1_COLVAL(0xffffffff); |
| 479 | |
| 480 | writel(keycon0, ctx->regs + WKEYCON0_BASE(win)); |
| 481 | writel(keycon1, ctx->regs + WKEYCON1_BASE(win)); |
| 482 | } |
| 483 | |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 484 | /** |
| 485 | * shadow_protect_win() - disable updating values from shadow registers at vsync |
| 486 | * |
| 487 | * @win: window to protect registers for |
| 488 | * @protect: 1 to protect (disable updates) |
| 489 | */ |
| 490 | static void fimd_shadow_protect_win(struct fimd_context *ctx, |
| 491 | int win, bool protect) |
| 492 | { |
| 493 | u32 reg, bits, val; |
| 494 | |
| 495 | if (ctx->driver_data->has_shadowcon) { |
| 496 | reg = SHADOWCON; |
| 497 | bits = SHADOWCON_WINx_PROTECT(win); |
| 498 | } else { |
| 499 | reg = PRTCON; |
| 500 | bits = PRTCON_PROTECT; |
| 501 | } |
| 502 | |
| 503 | val = readl(ctx->regs + reg); |
| 504 | if (protect) |
| 505 | val |= bits; |
| 506 | else |
| 507 | val &= ~bits; |
| 508 | writel(val, ctx->regs + reg); |
| 509 | } |
| 510 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 511 | static void fimd_win_commit(struct exynos_drm_manager *mgr, int zpos) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 512 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 513 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 514 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 515 | int win = zpos; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 516 | unsigned long val, alpha, size; |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 517 | unsigned int last_x; |
| 518 | unsigned int last_y; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 519 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 520 | if (ctx->suspended) |
| 521 | return; |
| 522 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 523 | if (win == DEFAULT_ZPOS) |
| 524 | win = ctx->default_win; |
| 525 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 526 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 527 | return; |
| 528 | |
| 529 | win_data = &ctx->win_data[win]; |
| 530 | |
| 531 | /* |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 532 | * SHADOWCON/PRTCON register is used for enabling timing. |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 533 | * |
| 534 | * for example, once only width value of a register is set, |
| 535 | * if the dma is started then fimd hardware could malfunction so |
| 536 | * with protect window setting, the register fields with prefix '_F' |
| 537 | * wouldn't be updated at vsync also but updated once unprotect window |
| 538 | * is set. |
| 539 | */ |
| 540 | |
| 541 | /* protect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 542 | fimd_shadow_protect_win(ctx, win, true); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 543 | |
| 544 | /* buffer start address */ |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 545 | val = (unsigned long)win_data->dma_addr; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 546 | writel(val, ctx->regs + VIDWx_BUF_START(win, 0)); |
| 547 | |
| 548 | /* buffer end address */ |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 549 | size = win_data->fb_width * win_data->ovl_height * (win_data->bpp >> 3); |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 550 | val = (unsigned long)(win_data->dma_addr + size); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 551 | writel(val, ctx->regs + VIDWx_BUF_END(win, 0)); |
| 552 | |
| 553 | DRM_DEBUG_KMS("start addr = 0x%lx, end addr = 0x%lx, size = 0x%lx\n", |
Inki Dae | 2c87112 | 2011-11-12 15:23:32 +0900 | [diff] [blame] | 554 | (unsigned long)win_data->dma_addr, val, size); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 555 | DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", |
| 556 | win_data->ovl_width, win_data->ovl_height); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 557 | |
| 558 | /* buffer size */ |
| 559 | val = VIDW_BUF_SIZE_OFFSET(win_data->buf_offsize) | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 560 | VIDW_BUF_SIZE_PAGEWIDTH(win_data->line_size) | |
| 561 | VIDW_BUF_SIZE_OFFSET_E(win_data->buf_offsize) | |
| 562 | VIDW_BUF_SIZE_PAGEWIDTH_E(win_data->line_size); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 563 | writel(val, ctx->regs + VIDWx_BUF_SIZE(win, 0)); |
| 564 | |
| 565 | /* OSD position */ |
| 566 | val = VIDOSDxA_TOPLEFT_X(win_data->offset_x) | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 567 | VIDOSDxA_TOPLEFT_Y(win_data->offset_y) | |
| 568 | VIDOSDxA_TOPLEFT_X_E(win_data->offset_x) | |
| 569 | VIDOSDxA_TOPLEFT_Y_E(win_data->offset_y); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 570 | writel(val, ctx->regs + VIDOSD_A(win)); |
| 571 | |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 572 | last_x = win_data->offset_x + win_data->ovl_width; |
| 573 | if (last_x) |
| 574 | last_x--; |
| 575 | last_y = win_data->offset_y + win_data->ovl_height; |
| 576 | if (last_y) |
| 577 | last_y--; |
| 578 | |
Joonyoung Shim | ca555e5 | 2012-12-14 15:48:24 +0900 | [diff] [blame] | 579 | val = VIDOSDxB_BOTRIGHT_X(last_x) | VIDOSDxB_BOTRIGHT_Y(last_y) | |
| 580 | VIDOSDxB_BOTRIGHT_X_E(last_x) | VIDOSDxB_BOTRIGHT_Y_E(last_y); |
| 581 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 582 | writel(val, ctx->regs + VIDOSD_B(win)); |
| 583 | |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 584 | DRM_DEBUG_KMS("osd pos: tx = %d, ty = %d, bx = %d, by = %d\n", |
Joonyoung Shim | f56aad3 | 2012-12-14 15:48:23 +0900 | [diff] [blame] | 585 | win_data->offset_x, win_data->offset_y, last_x, last_y); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 586 | |
| 587 | /* hardware window 0 doesn't support alpha channel. */ |
| 588 | if (win != 0) { |
| 589 | /* OSD alpha */ |
| 590 | alpha = VIDISD14C_ALPHA1_R(0xf) | |
| 591 | VIDISD14C_ALPHA1_G(0xf) | |
| 592 | VIDISD14C_ALPHA1_B(0xf); |
| 593 | |
| 594 | writel(alpha, ctx->regs + VIDOSD_C(win)); |
| 595 | } |
| 596 | |
| 597 | /* OSD size */ |
| 598 | if (win != 3 && win != 4) { |
| 599 | u32 offset = VIDOSD_D(win); |
| 600 | if (win == 0) |
Leela Krishna Amudala | 0f10cf1 | 2013-03-07 23:28:52 -0500 | [diff] [blame] | 601 | offset = VIDOSD_C(win); |
Inki Dae | 19c8b83 | 2011-10-14 13:29:46 +0900 | [diff] [blame] | 602 | val = win_data->ovl_width * win_data->ovl_height; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 603 | writel(val, ctx->regs + offset); |
| 604 | |
| 605 | DRM_DEBUG_KMS("osd size = 0x%x\n", (unsigned int)val); |
| 606 | } |
| 607 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 608 | fimd_win_set_pixfmt(ctx, win); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 609 | |
| 610 | /* hardware window 0 doesn't support color key. */ |
| 611 | if (win != 0) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 612 | fimd_win_set_colkey(ctx, win); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 613 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 614 | /* wincon */ |
| 615 | val = readl(ctx->regs + WINCON(win)); |
| 616 | val |= WINCONx_ENWIN; |
| 617 | writel(val, ctx->regs + WINCON(win)); |
| 618 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 619 | /* Enable DMA channel and unprotect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 620 | fimd_shadow_protect_win(ctx, win, false); |
| 621 | |
| 622 | if (ctx->driver_data->has_shadowcon) { |
| 623 | val = readl(ctx->regs + SHADOWCON); |
| 624 | val |= SHADOWCON_CHx_ENABLE(win); |
| 625 | writel(val, ctx->regs + SHADOWCON); |
| 626 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 627 | |
| 628 | win_data->enabled = true; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 629 | } |
| 630 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 631 | static void fimd_win_disable(struct exynos_drm_manager *mgr, int zpos) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 632 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 633 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 634 | struct fimd_win_data *win_data; |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 635 | int win = zpos; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 636 | u32 val; |
| 637 | |
Joonyoung Shim | 864ee9e | 2011-12-08 17:54:07 +0900 | [diff] [blame] | 638 | if (win == DEFAULT_ZPOS) |
| 639 | win = ctx->default_win; |
| 640 | |
Krzysztof Kozlowski | 37b006e | 2013-05-27 11:56:26 +0200 | [diff] [blame] | 641 | if (win < 0 || win >= WINDOWS_NR) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 642 | return; |
| 643 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 644 | win_data = &ctx->win_data[win]; |
| 645 | |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 646 | if (ctx->suspended) { |
| 647 | /* do not resume this window*/ |
| 648 | win_data->resume = false; |
| 649 | return; |
| 650 | } |
| 651 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 652 | /* protect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 653 | fimd_shadow_protect_win(ctx, win, true); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 654 | |
| 655 | /* wincon */ |
| 656 | val = readl(ctx->regs + WINCON(win)); |
| 657 | val &= ~WINCONx_ENWIN; |
| 658 | writel(val, ctx->regs + WINCON(win)); |
| 659 | |
| 660 | /* unprotect windows */ |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 661 | if (ctx->driver_data->has_shadowcon) { |
| 662 | val = readl(ctx->regs + SHADOWCON); |
| 663 | val &= ~SHADOWCON_CHx_ENABLE(win); |
| 664 | writel(val, ctx->regs + SHADOWCON); |
| 665 | } |
| 666 | |
| 667 | fimd_shadow_protect_win(ctx, win, false); |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 668 | |
| 669 | win_data->enabled = false; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 670 | } |
| 671 | |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 672 | static struct exynos_drm_manager_ops fimd_manager_ops = { |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 673 | .initialize = fimd_mgr_initialize, |
Sean Paul | 1c6244c | 2014-01-30 16:19:02 -0500 | [diff] [blame] | 674 | .dpms = fimd_dpms, |
| 675 | .apply = fimd_apply, |
| 676 | .commit = fimd_commit, |
| 677 | .enable_vblank = fimd_enable_vblank, |
| 678 | .disable_vblank = fimd_disable_vblank, |
| 679 | .wait_for_vblank = fimd_wait_for_vblank, |
| 680 | .win_mode_set = fimd_win_mode_set, |
| 681 | .win_commit = fimd_win_commit, |
| 682 | .win_disable = fimd_win_disable, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 683 | }; |
| 684 | |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 685 | static struct exynos_drm_manager fimd_manager = { |
| 686 | .pipe = -1, |
| 687 | .ops = &fimd_manager_ops, |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 688 | .display_ops = &fimd_display_ops, |
| 689 | }; |
| 690 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 691 | static irqreturn_t fimd_irq_handler(int irq, void *dev_id) |
| 692 | { |
| 693 | struct fimd_context *ctx = (struct fimd_context *)dev_id; |
| 694 | struct exynos_drm_subdrv *subdrv = &ctx->subdrv; |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 695 | struct exynos_drm_manager *manager = subdrv->manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 696 | u32 val; |
| 697 | |
| 698 | val = readl(ctx->regs + VIDINTCON1); |
| 699 | |
| 700 | if (val & VIDINTCON1_INT_FRAME) |
| 701 | /* VSYNC interrupt */ |
| 702 | writel(VIDINTCON1_INT_FRAME, ctx->regs + VIDINTCON1); |
| 703 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 704 | /* check the crtc is detached already from encoder */ |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 705 | if (manager->pipe < 0 || !ctx->drm_dev) |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 706 | goto out; |
Inki Dae | 483b88f | 2011-11-11 21:28:00 +0900 | [diff] [blame] | 707 | |
Sean Paul | 40c8ab4 | 2014-01-30 16:19:04 -0500 | [diff] [blame] | 708 | drm_handle_vblank(ctx->drm_dev, manager->pipe); |
| 709 | exynos_drm_crtc_finish_pageflip(ctx->drm_dev, manager->pipe); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 710 | |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 711 | /* set wait vsync event to zero and wake up queue. */ |
| 712 | if (atomic_read(&ctx->wait_vsync_event)) { |
| 713 | atomic_set(&ctx->wait_vsync_event, 0); |
Seung-Woo Kim | 8dd9ad5 | 2013-12-30 16:01:29 +0900 | [diff] [blame] | 714 | wake_up(&ctx->wait_vsync_queue); |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 715 | } |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 716 | out: |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 717 | return IRQ_HANDLED; |
| 718 | } |
| 719 | |
Inki Dae | 41c2434 | 2011-10-14 13:29:48 +0900 | [diff] [blame] | 720 | static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 721 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 722 | /* |
| 723 | * enable drm irq mode. |
Ville Syrjälä | 4423843 | 2013-10-04 14:53:37 +0300 | [diff] [blame] | 724 | * - with irq_enabled = true, we can use the vblank feature. |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 725 | * |
| 726 | * P.S. note that we wouldn't use drm irq handler but |
| 727 | * just specific driver own one instead because |
| 728 | * drm framework supports only one irq handler. |
| 729 | */ |
Ville Syrjälä | 4423843 | 2013-10-04 14:53:37 +0300 | [diff] [blame] | 730 | drm_dev->irq_enabled = true; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 731 | |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 732 | /* |
Ville Syrjälä | ba0bf12 | 2013-10-04 14:53:33 +0300 | [diff] [blame] | 733 | * with vblank_disable_allowed = true, vblank interrupt will be disabled |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 734 | * by drm timer once a current process gives up ownership of |
| 735 | * vblank event.(after drm_vblank_put function is called) |
| 736 | */ |
Ville Syrjälä | ba0bf12 | 2013-10-04 14:53:33 +0300 | [diff] [blame] | 737 | drm_dev->vblank_disable_allowed = true; |
Inki Dae | ec05da9 | 2011-12-06 11:06:54 +0900 | [diff] [blame] | 738 | |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 739 | /* attach this sub driver to iommu mapping if supported. */ |
| 740 | if (is_drm_iommu_supported(drm_dev)) |
| 741 | drm_iommu_attach_device(drm_dev, dev); |
| 742 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 743 | return 0; |
| 744 | } |
| 745 | |
Inki Dae | 29cb602 | 2012-09-05 14:12:06 +0900 | [diff] [blame] | 746 | static void fimd_subdrv_remove(struct drm_device *drm_dev, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 747 | { |
Inki Dae | bcc5cd1 | 2012-10-19 17:16:36 +0900 | [diff] [blame] | 748 | /* detach this sub driver from iommu mapping if supported. */ |
| 749 | if (is_drm_iommu_supported(drm_dev)) |
| 750 | drm_iommu_detach_device(drm_dev, dev); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 751 | } |
| 752 | |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 753 | static int fimd_configure_clocks(struct fimd_context *ctx, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 754 | { |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 755 | struct videomode *vm = &ctx->panel.vm; |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 756 | unsigned long clk; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 757 | |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 758 | ctx->bus_clk = devm_clk_get(dev, "fimd"); |
| 759 | if (IS_ERR(ctx->bus_clk)) { |
| 760 | dev_err(dev, "failed to get bus clock\n"); |
| 761 | return PTR_ERR(ctx->bus_clk); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 762 | } |
| 763 | |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 764 | ctx->lcd_clk = devm_clk_get(dev, "sclk_fimd"); |
| 765 | if (IS_ERR(ctx->lcd_clk)) { |
| 766 | dev_err(dev, "failed to get lcd clock\n"); |
| 767 | return PTR_ERR(ctx->lcd_clk); |
| 768 | } |
| 769 | |
| 770 | clk = clk_get_rate(ctx->lcd_clk); |
| 771 | if (clk == 0) { |
| 772 | dev_err(dev, "error getting sclk_fimd clock rate\n"); |
| 773 | return -EINVAL; |
| 774 | } |
| 775 | |
| 776 | if (vm->pixelclock == 0) { |
| 777 | unsigned long c; |
| 778 | c = vm->hactive + vm->hback_porch + vm->hfront_porch + |
| 779 | vm->hsync_len; |
| 780 | c *= vm->vactive + vm->vback_porch + vm->vfront_porch + |
| 781 | vm->vsync_len; |
| 782 | vm->pixelclock = c * FIMD_DEFAULT_FRAMERATE; |
| 783 | if (vm->pixelclock == 0) { |
| 784 | dev_err(dev, "incorrect display timings\n"); |
| 785 | return -EINVAL; |
| 786 | } |
| 787 | dev_warn(dev, "pixel clock recalculated to %luHz (%dHz frame rate)\n", |
| 788 | vm->pixelclock, FIMD_DEFAULT_FRAMERATE); |
| 789 | } |
| 790 | ctx->clkdiv = DIV_ROUND_UP(clk, vm->pixelclock); |
| 791 | if (ctx->clkdiv > 256) { |
| 792 | dev_warn(dev, "calculated pixel clock divider too high (%u), lowered to 256\n", |
| 793 | ctx->clkdiv); |
| 794 | ctx->clkdiv = 256; |
| 795 | } |
| 796 | vm->pixelclock = clk / ctx->clkdiv; |
| 797 | DRM_DEBUG_KMS("pixel clock = %lu, clkdiv = %d\n", vm->pixelclock, |
| 798 | ctx->clkdiv); |
| 799 | |
| 800 | return 0; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | static void fimd_clear_win(struct fimd_context *ctx, int win) |
| 804 | { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 805 | writel(0, ctx->regs + WINCON(win)); |
| 806 | writel(0, ctx->regs + VIDOSD_A(win)); |
| 807 | writel(0, ctx->regs + VIDOSD_B(win)); |
| 808 | writel(0, ctx->regs + VIDOSD_C(win)); |
| 809 | |
| 810 | if (win == 1 || win == 2) |
| 811 | writel(0, ctx->regs + VIDOSD_D(win)); |
| 812 | |
Tomasz Figa | de7af10 | 2013-05-01 21:02:27 +0200 | [diff] [blame] | 813 | fimd_shadow_protect_win(ctx, win, false); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 814 | } |
| 815 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 816 | static int fimd_clock(struct fimd_context *ctx, bool enable) |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 817 | { |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 818 | if (enable) { |
| 819 | int ret; |
| 820 | |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 821 | ret = clk_prepare_enable(ctx->bus_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 822 | if (ret < 0) |
| 823 | return ret; |
| 824 | |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 825 | ret = clk_prepare_enable(ctx->lcd_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 826 | if (ret < 0) { |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 827 | clk_disable_unprepare(ctx->bus_clk); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 828 | return ret; |
| 829 | } |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 830 | } else { |
Vikas Sajjan | 11963a6 | 2013-04-23 17:19:50 +0530 | [diff] [blame] | 831 | clk_disable_unprepare(ctx->lcd_clk); |
| 832 | clk_disable_unprepare(ctx->bus_clk); |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | return 0; |
| 836 | } |
| 837 | |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 838 | static void fimd_window_suspend(struct device *dev) |
| 839 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 840 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
| 841 | struct fimd_context *ctx = mgr->ctx; |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 842 | struct fimd_win_data *win_data; |
| 843 | int i; |
| 844 | |
| 845 | for (i = 0; i < WINDOWS_NR; i++) { |
| 846 | win_data = &ctx->win_data[i]; |
| 847 | win_data->resume = win_data->enabled; |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 848 | fimd_win_disable(mgr, i); |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 849 | } |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 850 | fimd_wait_for_vblank(mgr); |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | static void fimd_window_resume(struct device *dev) |
| 854 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 855 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
| 856 | struct fimd_context *ctx = mgr->ctx; |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 857 | struct fimd_win_data *win_data; |
| 858 | int i; |
| 859 | |
| 860 | for (i = 0; i < WINDOWS_NR; i++) { |
| 861 | win_data = &ctx->win_data[i]; |
| 862 | win_data->enabled = win_data->resume; |
| 863 | win_data->resume = false; |
| 864 | } |
| 865 | } |
| 866 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 867 | static int fimd_activate(struct exynos_drm_manager *mgr, bool enable) |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 868 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 869 | struct fimd_context *ctx = mgr->ctx; |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 870 | struct device *dev = ctx->subdrv.dev; |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 871 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 872 | if (enable) { |
| 873 | int ret; |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 874 | |
| 875 | ret = fimd_clock(ctx, true); |
| 876 | if (ret < 0) |
| 877 | return ret; |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 878 | |
| 879 | ctx->suspended = false; |
| 880 | |
| 881 | /* if vblank was enabled status, enable it again. */ |
| 882 | if (test_and_clear_bit(0, &ctx->irq_flags)) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 883 | fimd_enable_vblank(mgr); |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 884 | |
| 885 | fimd_window_resume(dev); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 886 | } else { |
Prathyush K | db7e55a | 2012-12-06 20:16:06 +0530 | [diff] [blame] | 887 | fimd_window_suspend(dev); |
| 888 | |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 889 | fimd_clock(ctx, false); |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 890 | ctx->suspended = true; |
| 891 | } |
| 892 | |
| 893 | return 0; |
| 894 | } |
| 895 | |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 896 | static int fimd_get_platform_data(struct fimd_context *ctx, struct device *dev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 897 | { |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 898 | struct videomode *vm; |
| 899 | int ret; |
Vikas Sajjan | 7f4596f | 2013-03-07 12:15:21 +0530 | [diff] [blame] | 900 | |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 901 | vm = &ctx->panel.vm; |
| 902 | ret = of_get_videomode(dev->of_node, vm, OF_USE_NATIVE_MODE); |
| 903 | if (ret) { |
| 904 | DRM_ERROR("failed: of_get_videomode() : %d\n", ret); |
| 905 | return ret; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 906 | } |
| 907 | |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 908 | if (vm->flags & DISPLAY_FLAGS_VSYNC_LOW) |
| 909 | ctx->vidcon1 |= VIDCON1_INV_VSYNC; |
| 910 | if (vm->flags & DISPLAY_FLAGS_HSYNC_LOW) |
| 911 | ctx->vidcon1 |= VIDCON1_INV_HSYNC; |
| 912 | if (vm->flags & DISPLAY_FLAGS_DE_LOW) |
| 913 | ctx->vidcon1 |= VIDCON1_INV_VDEN; |
| 914 | if (vm->flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE) |
| 915 | ctx->vidcon1 |= VIDCON1_INV_VCLK; |
| 916 | |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 917 | return 0; |
| 918 | } |
| 919 | |
| 920 | static int fimd_probe(struct platform_device *pdev) |
| 921 | { |
| 922 | struct device *dev = &pdev->dev; |
| 923 | struct fimd_context *ctx; |
| 924 | struct exynos_drm_subdrv *subdrv; |
| 925 | struct resource *res; |
| 926 | int win; |
| 927 | int ret = -EINVAL; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 928 | |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 929 | if (!dev->of_node) |
| 930 | return -ENODEV; |
| 931 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 932 | ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 933 | if (!ctx) |
| 934 | return -ENOMEM; |
| 935 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 936 | ctx->dev = dev; |
| 937 | |
Andrzej Hajda | 562ad9f | 2013-08-21 16:22:03 +0200 | [diff] [blame] | 938 | ret = fimd_get_platform_data(ctx, dev); |
| 939 | if (ret) |
| 940 | return ret; |
| 941 | |
Andrzej Hajda | 111e605 | 2013-08-21 16:22:01 +0200 | [diff] [blame] | 942 | ret = fimd_configure_clocks(ctx, dev); |
| 943 | if (ret) |
| 944 | return ret; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 945 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 946 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 947 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 948 | ctx->regs = devm_ioremap_resource(dev, res); |
Thierry Reding | d4ed602 | 2013-01-21 11:09:02 +0100 | [diff] [blame] | 949 | if (IS_ERR(ctx->regs)) |
| 950 | return PTR_ERR(ctx->regs); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 951 | |
Vikas Sajjan | 1977e6d | 2013-04-02 17:53:01 +0900 | [diff] [blame] | 952 | res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "vsync"); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 953 | if (!res) { |
| 954 | dev_err(dev, "irq request failed.\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 955 | return -ENXIO; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 956 | } |
| 957 | |
| 958 | ctx->irq = res->start; |
| 959 | |
Seung-Woo Kim | d873ab9 | 2013-05-22 21:14:14 +0900 | [diff] [blame] | 960 | ret = devm_request_irq(dev, ctx->irq, fimd_irq_handler, |
Sachin Kamat | edc5726 | 2012-06-19 11:47:39 +0530 | [diff] [blame] | 961 | 0, "drm_fimd", ctx); |
| 962 | if (ret) { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 963 | dev_err(dev, "irq request failed.\n"); |
Sachin Kamat | a4d8de5 | 2012-11-26 09:47:14 +0530 | [diff] [blame] | 964 | return ret; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 965 | } |
| 966 | |
Tomasz Figa | 1887346 | 2013-05-01 21:02:26 +0200 | [diff] [blame] | 967 | ctx->driver_data = drm_fimd_get_driver_data(pdev); |
Daniel Vetter | 57ed0f7 | 2013-12-11 11:34:43 +0100 | [diff] [blame] | 968 | init_waitqueue_head(&ctx->wait_vsync_queue); |
Prathyush K | 01ce113 | 2012-12-06 20:16:04 +0530 | [diff] [blame] | 969 | atomic_set(&ctx->wait_vsync_event, 0); |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 970 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 971 | fimd_manager.ctx = ctx; |
| 972 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 973 | subdrv = &ctx->subdrv; |
| 974 | |
Joonyoung Shim | 677e84c | 2012-04-05 20:49:27 +0900 | [diff] [blame] | 975 | subdrv->dev = dev; |
| 976 | subdrv->manager = &fimd_manager; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 977 | subdrv->probe = fimd_subdrv_probe; |
| 978 | subdrv->remove = fimd_subdrv_remove; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 979 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 980 | mutex_init(&ctx->lock); |
| 981 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 982 | platform_set_drvdata(pdev, &fimd_manager); |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 983 | |
Inki Dae | c32b06e | 2011-12-16 21:49:03 +0900 | [diff] [blame] | 984 | pm_runtime_enable(dev); |
| 985 | pm_runtime_get_sync(dev); |
| 986 | |
| 987 | for (win = 0; win < WINDOWS_NR; win++) |
| 988 | fimd_clear_win(ctx, win); |
| 989 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 990 | exynos_drm_subdrv_register(subdrv); |
| 991 | |
| 992 | return 0; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 993 | } |
| 994 | |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 995 | static int fimd_remove(struct platform_device *pdev) |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 996 | { |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 997 | struct device *dev = &pdev->dev; |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 998 | struct exynos_drm_manager *mgr = platform_get_drvdata(pdev); |
| 999 | struct fimd_context *ctx = mgr->ctx; |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1000 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1001 | exynos_drm_subdrv_unregister(&ctx->subdrv); |
| 1002 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1003 | if (ctx->suspended) |
| 1004 | goto out; |
| 1005 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1006 | pm_runtime_set_suspended(dev); |
| 1007 | pm_runtime_put_sync(dev); |
| 1008 | |
| 1009 | out: |
| 1010 | pm_runtime_disable(dev); |
| 1011 | |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1012 | return 0; |
| 1013 | } |
| 1014 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1015 | #ifdef CONFIG_PM_SLEEP |
| 1016 | static int fimd_suspend(struct device *dev) |
| 1017 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1018 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1019 | |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1020 | /* |
| 1021 | * do not use pm_runtime_suspend(). if pm_runtime_suspend() is |
| 1022 | * called here, an error would be returned by that interface |
| 1023 | * because the usage_count of pm runtime is more than 1. |
| 1024 | */ |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1025 | if (!pm_runtime_suspended(dev)) |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1026 | return fimd_activate(mgr, false); |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1027 | |
| 1028 | return 0; |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1029 | } |
| 1030 | |
| 1031 | static int fimd_resume(struct device *dev) |
| 1032 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1033 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1034 | |
Inki Dae | 373af0c | 2012-01-27 11:54:58 +0900 | [diff] [blame] | 1035 | /* |
| 1036 | * if entered to sleep when lcd panel was on, the usage_count |
| 1037 | * of pm runtime would still be 1 so in this case, fimd driver |
| 1038 | * should be on directly not drawing on pm runtime interface. |
| 1039 | */ |
Prathyush K | 28998af | 2012-12-27 06:40:13 -0500 | [diff] [blame] | 1040 | if (!pm_runtime_suspended(dev)) { |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1041 | int ret; |
| 1042 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1043 | ret = fimd_activate(mgr, true); |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1044 | if (ret < 0) |
| 1045 | return ret; |
| 1046 | |
| 1047 | /* |
| 1048 | * in case of dpms on(standby), fimd_apply function will |
| 1049 | * be called by encoder's dpms callback to update fimd's |
| 1050 | * registers but in case of sleep wakeup, it's not. |
| 1051 | * so fimd_apply function should be called at here. |
| 1052 | */ |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1053 | fimd_apply(mgr); |
Inki Dae | 5d55393 | 2012-08-17 17:08:04 +0900 | [diff] [blame] | 1054 | } |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1055 | |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1056 | return 0; |
| 1057 | } |
| 1058 | #endif |
| 1059 | |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1060 | #ifdef CONFIG_PM_RUNTIME |
| 1061 | static int fimd_runtime_suspend(struct device *dev) |
| 1062 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1063 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1064 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1065 | return fimd_activate(mgr, false); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1066 | } |
| 1067 | |
| 1068 | static int fimd_runtime_resume(struct device *dev) |
| 1069 | { |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1070 | struct exynos_drm_manager *mgr = get_fimd_manager(dev); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1071 | |
Sean Paul | bb7704d | 2014-01-30 16:19:06 -0500 | [diff] [blame^] | 1072 | return fimd_activate(mgr, true); |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1073 | } |
| 1074 | #endif |
| 1075 | |
| 1076 | static const struct dev_pm_ops fimd_pm_ops = { |
Inki Dae | e30d4bc | 2011-12-12 16:35:20 +0900 | [diff] [blame] | 1077 | SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume) |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1078 | SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL) |
| 1079 | }; |
| 1080 | |
Joonyoung Shim | 132a5b9 | 2012-03-16 18:47:08 +0900 | [diff] [blame] | 1081 | struct platform_driver fimd_driver = { |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1082 | .probe = fimd_probe, |
Greg Kroah-Hartman | 56550d9 | 2012-12-21 15:09:25 -0800 | [diff] [blame] | 1083 | .remove = fimd_remove, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1084 | .driver = { |
| 1085 | .name = "exynos4-fb", |
| 1086 | .owner = THIS_MODULE, |
Joonyoung Shim | cb91f6a | 2011-12-09 16:52:11 +0900 | [diff] [blame] | 1087 | .pm = &fimd_pm_ops, |
Sachin Kamat | 2d3f173 | 2013-08-28 10:47:58 +0530 | [diff] [blame] | 1088 | .of_match_table = fimd_driver_dt_match, |
Inki Dae | 1c248b7 | 2011-10-04 19:19:01 +0900 | [diff] [blame] | 1089 | }, |
| 1090 | }; |