projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 16ea975e RC |
1 | /* |
| 2 | * Copyright (C) 2012 Texas Instruments | |
| 3 | * Author: Rob Clark <robdclark@gmail.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU General Public License version 2 as published by | |
| 7 | * the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License along with | |
| 15 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef __TILCDC_DRV_H__ | |
| 19 | #define __TILCDC_DRV_H__ | |
| 20 | ||
| 21 | #include <linux/clk.h> | |
| 22 | #include <linux/cpufreq.h> | |
| 23 | #include <linux/module.h> | |
| 24 | #include <linux/platform_device.h> | |
| 25 | #include <linux/pm.h> | |
| 26 | #include <linux/pm_runtime.h> | |
| 27 | #include <linux/slab.h> | |
| 28 | #include <linux/of.h> | |
| 29 | #include <linux/of_device.h> | |
| 30 | #include <linux/list.h> | |
| 31 | ||
| 32 | #include <drm/drmP.h> | |
| 33 | #include <drm/drm_crtc_helper.h> | |
| 34 | #include <drm/drm_gem_cma_helper.h> | |
| 35 | #include <drm/drm_fb_cma_helper.h> | |
| 36 | ||
| 37 | struct tilcdc_drm_private { | |
| 38 | void __iomem *mmio; | |
| 39 | ||
| 40 | struct clk *disp_clk; /* display dpll */ | |
| 41 | struct clk *clk; /* functional clock */ | |
| 42 | int rev; /* IP revision */ | |
| 43 | ||
| 44 | /* don't attempt resolutions w/ higher W * H * Hz: */ | |
| 45 | uint32_t max_bandwidth; | |
| 46 | ||
| 47 | /* register contents saved across suspend/resume: */ | |
| 48 | u32 saved_register[12]; | |
| 49 | ||
| 50 | #ifdef CONFIG_CPU_FREQ | |
| 51 | struct notifier_block freq_transition; | |
| 52 | unsigned int lcd_fck_rate; | |
| 53 | #endif | |
| 54 | ||
| 55 | struct workqueue_struct *wq; | |
| 56 | ||
| 57 | struct drm_fbdev_cma *fbdev; | |
| 58 | ||
| 59 | struct drm_crtc *crtc; | |
| 60 | ||
| 61 | unsigned int num_encoders; | |
| 62 | struct drm_encoder *encoders[8]; | |
| 63 | ||
| 64 | unsigned int num_connectors; | |
| 65 | struct drm_connector *connectors[8]; | |
| 66 | }; | |
| 67 | ||
| 68 | /* Sub-module for display. Since we don't know at compile time what panels | |
| 69 | * or display adapter(s) might be present (for ex, off chip dvi/tfp410, | |
| 70 | * hdmi encoder, various lcd panels), the connector/encoder(s) are split into | |
| 71 | * separate drivers. If they are probed and found to be present, they | |
| 72 | * register themselves with tilcdc_register_module(). | |
| 73 | */ | |
| 74 | struct tilcdc_module; | |
| 75 | ||
| 76 | struct tilcdc_module_ops { | |
| 77 | /* create appropriate encoders/connectors: */ | |
| 78 | int (*modeset_init)(struct tilcdc_module *mod, struct drm_device *dev); | |
| 79 | void (*destroy)(struct tilcdc_module *mod); | |
| 80 | #ifdef CONFIG_DEBUG_FS | |
| 81 | /* create debugfs nodes (can be NULL): */ | |
| 82 | int (*debugfs_init)(struct tilcdc_module *mod, struct drm_minor *minor); | |
| 83 | /* cleanup debugfs nodes (can be NULL): */ | |
| 84 | void (*debugfs_cleanup)(struct tilcdc_module *mod, struct drm_minor *minor); | |
| 85 | #endif | |
| 86 | }; | |
| 87 | ||
| 88 | struct tilcdc_module { | |
| 89 | const char *name; | |
| 90 | struct list_head list; | |
| 91 | const struct tilcdc_module_ops *funcs; | |
| 92 | }; | |
| 93 | ||
| 94 | void tilcdc_module_init(struct tilcdc_module *mod, const char *name, | |
| 95 | const struct tilcdc_module_ops *funcs); | |
| 96 | void tilcdc_module_cleanup(struct tilcdc_module *mod); | |
| 97 | ||
| 98 | ||
| 99 | /* Panel config that needs to be set in the crtc, but is not coming from | |
| 100 | * the mode timings. The display module is expected to call | |
| 101 | * tilcdc_crtc_set_panel_info() to set this during modeset. | |
| 102 | */ | |
| 103 | struct tilcdc_panel_info { | |
| 104 | ||
| 105 | /* AC Bias Pin Frequency */ | |
| 106 | uint32_t ac_bias; | |
| 107 | ||
| 108 | /* AC Bias Pin Transitions per Interrupt */ | |
| 109 | uint32_t ac_bias_intrpt; | |
| 110 | ||
| 111 | /* DMA burst size */ | |
| 112 | uint32_t dma_burst_sz; | |
| 113 | ||
| 114 | /* Bits per pixel */ | |
| 115 | uint32_t bpp; | |
| 116 | ||
| 117 | /* FIFO DMA Request Delay */ | |
| 118 | uint32_t fdd; | |
| 119 | ||
| 120 | /* TFT Alternative Signal Mapping (Only for active) */ | |
| 121 | bool tft_alt_mode; | |
| 122 | ||
| 123 | /* Invert pixel clock */ | |
| 124 | bool invert_pxl_clk; | |
| 125 | ||
| 126 | /* Horizontal and Vertical Sync Edge: 0=rising 1=falling */ | |
| 127 | uint32_t sync_edge; | |
| 128 | ||
| 129 | /* Horizontal and Vertical Sync: Control: 0=ignore */ | |
| 130 | uint32_t sync_ctrl; | |
| 131 | ||
| 132 | /* Raster Data Order Select: 1=Most-to-least 0=Least-to-most */ | |
| 133 | uint32_t raster_order; | |
| 134 | ||
| 135 | /* DMA FIFO threshold */ | |
| 136 | uint32_t fifo_th; | |
| 137 | }; | |
| 138 | ||
| 139 | #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) | |
| 140 | ||
| 141 | struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev); | |
| 142 | void tilcdc_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); | |
| 143 | irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc); | |
| 144 | void tilcdc_crtc_update_clk(struct drm_crtc *crtc); | |
| 145 | void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc, | |
| 146 | const struct tilcdc_panel_info *info); | |
| 147 | int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode); | |
| 148 | int tilcdc_crtc_max_width(struct drm_crtc *crtc); | |
| 149 | ||
| 150 | #endif /* __TILCDC_DRV_H__ */ |