1 /* 2 * shmob_drm.h -- SH Mobile DRM driver 3 * 4 * Copyright (C) 2012 Renesas Corporation 5 * 6 * Laurent Pinchart (laurent.pinchart@ideasonboard.com) 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 */ 13 14 #ifndef __SHMOB_DRM_H__ 15 #define __SHMOB_DRM_H__ 16 17 #include <linux/kernel.h> 18 19 #include <drm/drm_mode.h> 20 21 struct sh_mobile_meram_cfg; 22 struct sh_mobile_meram_info; 23 24 enum shmob_drm_clk_source { 25 SHMOB_DRM_CLK_BUS, 26 SHMOB_DRM_CLK_PERIPHERAL, 27 SHMOB_DRM_CLK_EXTERNAL, 28 }; 29 30 enum shmob_drm_interface { 31 SHMOB_DRM_IFACE_RGB8, /* 24bpp, 8:8:8 */ 32 SHMOB_DRM_IFACE_RGB9, /* 18bpp, 9:9 */ 33 SHMOB_DRM_IFACE_RGB12A, /* 24bpp, 12:12 */ 34 SHMOB_DRM_IFACE_RGB12B, /* 12bpp */ 35 SHMOB_DRM_IFACE_RGB16, /* 16bpp */ 36 SHMOB_DRM_IFACE_RGB18, /* 18bpp */ 37 SHMOB_DRM_IFACE_RGB24, /* 24bpp */ 38 SHMOB_DRM_IFACE_YUV422, /* 16bpp */ 39 SHMOB_DRM_IFACE_SYS8A, /* 24bpp, 8:8:8 */ 40 SHMOB_DRM_IFACE_SYS8B, /* 18bpp, 8:8:2 */ 41 SHMOB_DRM_IFACE_SYS8C, /* 18bpp, 2:8:8 */ 42 SHMOB_DRM_IFACE_SYS8D, /* 16bpp, 8:8 */ 43 SHMOB_DRM_IFACE_SYS9, /* 18bpp, 9:9 */ 44 SHMOB_DRM_IFACE_SYS12, /* 24bpp, 12:12 */ 45 SHMOB_DRM_IFACE_SYS16A, /* 16bpp */ 46 SHMOB_DRM_IFACE_SYS16B, /* 18bpp, 16:2 */ 47 SHMOB_DRM_IFACE_SYS16C, /* 18bpp, 2:16 */ 48 SHMOB_DRM_IFACE_SYS18, /* 18bpp */ 49 SHMOB_DRM_IFACE_SYS24, /* 24bpp */ 50 }; 51 52 struct shmob_drm_backlight_data { 53 const char *name; 54 int max_brightness; 55 int (*get_brightness)(void); 56 int (*set_brightness)(int brightness); 57 }; 58 59 struct shmob_drm_panel_data { 60 unsigned int width_mm; /* Panel width in mm */ 61 unsigned int height_mm; /* Panel height in mm */ 62 struct drm_mode_modeinfo mode; 63 }; 64 65 struct shmob_drm_sys_interface_data { 66 unsigned int read_latch:6; 67 unsigned int read_setup:8; 68 unsigned int read_cycle:8; 69 unsigned int read_strobe:8; 70 unsigned int write_setup:8; 71 unsigned int write_cycle:8; 72 unsigned int write_strobe:8; 73 unsigned int cs_setup:3; 74 unsigned int vsync_active_high:1; 75 unsigned int vsync_dir_input:1; 76 }; 77 78 #define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */ 79 #define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */ 80 #define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */ 81 #define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */ 82 #define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */ 83 84 struct shmob_drm_interface_data { 85 enum shmob_drm_interface interface; 86 struct shmob_drm_sys_interface_data sys; 87 unsigned int clk_div; 88 unsigned int flags; 89 }; 90 91 struct shmob_drm_platform_data { 92 enum shmob_drm_clk_source clk_source; 93 struct shmob_drm_interface_data iface; 94 struct shmob_drm_panel_data panel; 95 struct shmob_drm_backlight_data backlight; 96 const struct sh_mobile_meram_cfg *meram; 97 }; 98 99 #endif /* __SHMOB_DRM_H__ */ 100