1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * File: drivers/video/omap/omapfb.h 4 * 5 * Framebuffer driver for TI OMAP boards 6 * 7 * Copyright (C) 2004 Nokia Corporation 8 * Author: Imre Deak <imre.deak@nokia.com> 9 */ 10 11 #ifndef __OMAPFB_H 12 #define __OMAPFB_H 13 14 #include <linux/fb.h> 15 #include <linux/mutex.h> 16 #include <linux/omapfb.h> 17 18 #define OMAPFB_EVENT_READY 1 19 #define OMAPFB_EVENT_DISABLED 2 20 21 #define OMAP_LCDC_INV_VSYNC 0x0001 22 #define OMAP_LCDC_INV_HSYNC 0x0002 23 #define OMAP_LCDC_INV_PIX_CLOCK 0x0004 24 #define OMAP_LCDC_INV_OUTPUT_EN 0x0008 25 #define OMAP_LCDC_HSVS_RISING_EDGE 0x0010 26 #define OMAP_LCDC_HSVS_OPPOSITE 0x0020 27 28 #define OMAP_LCDC_SIGNAL_MASK 0x003f 29 30 #define OMAP_LCDC_PANEL_TFT 0x0100 31 32 #define OMAPFB_PLANE_XRES_MIN 8 33 #define OMAPFB_PLANE_YRES_MIN 8 34 35 struct omapfb_device; 36 37 #define OMAPFB_PLANE_NUM 1 38 39 struct omapfb_mem_region { 40 u32 paddr; 41 void __iomem *vaddr; 42 unsigned long size; 43 u8 type; /* OMAPFB_PLANE_MEM_* */ 44 enum omapfb_color_format format;/* OMAPFB_COLOR_* */ 45 unsigned format_used:1; /* Must be set when format is set. 46 * Needed b/c of the badly chosen 0 47 * base for OMAPFB_COLOR_* values 48 */ 49 unsigned alloc:1; /* allocated by the driver */ 50 unsigned map:1; /* kernel mapped by the driver */ 51 }; 52 53 struct omapfb_mem_desc { 54 int region_cnt; 55 struct omapfb_mem_region region[OMAPFB_PLANE_NUM]; 56 }; 57 58 struct lcd_panel { 59 const char *name; 60 int config; /* TFT/STN, signal inversion */ 61 int bpp; /* Pixel format in fb mem */ 62 int data_lines; /* Lines on LCD HW interface */ 63 64 int x_res, y_res; 65 int pixel_clock; /* In kHz */ 66 int hsw; /* Horizontal synchronization 67 pulse width */ 68 int hfp; /* Horizontal front porch */ 69 int hbp; /* Horizontal back porch */ 70 int vsw; /* Vertical synchronization 71 pulse width */ 72 int vfp; /* Vertical front porch */ 73 int vbp; /* Vertical back porch */ 74 int acb; /* ac-bias pin frequency */ 75 int pcd; /* pixel clock divider. 76 Obsolete use pixel_clock instead */ 77 78 int (*init) (struct lcd_panel *panel, 79 struct omapfb_device *fbdev); 80 void (*cleanup) (struct lcd_panel *panel); 81 int (*enable) (struct lcd_panel *panel); 82 void (*disable) (struct lcd_panel *panel); 83 unsigned long (*get_caps) (struct lcd_panel *panel); 84 int (*set_bklight_level)(struct lcd_panel *panel, 85 unsigned int level); 86 unsigned int (*get_bklight_level)(struct lcd_panel *panel); 87 unsigned int (*get_bklight_max) (struct lcd_panel *panel); 88 int (*run_test) (struct lcd_panel *panel, int test_num); 89 }; 90 91 struct extif_timings { 92 int cs_on_time; 93 int cs_off_time; 94 int we_on_time; 95 int we_off_time; 96 int re_on_time; 97 int re_off_time; 98 int we_cycle_time; 99 int re_cycle_time; 100 int cs_pulse_width; 101 int access_time; 102 103 int clk_div; 104 105 u32 tim[5]; /* set by extif->convert_timings */ 106 107 int converted; 108 }; 109 110 struct lcd_ctrl_extif { 111 int (*init) (struct omapfb_device *fbdev); 112 void (*cleanup) (void); 113 void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div); 114 unsigned long (*get_max_tx_rate)(void); 115 int (*convert_timings) (struct extif_timings *timings); 116 void (*set_timings) (const struct extif_timings *timings); 117 void (*set_bits_per_cycle)(int bpc); 118 void (*write_command) (const void *buf, unsigned int len); 119 void (*read_data) (void *buf, unsigned int len); 120 void (*write_data) (const void *buf, unsigned int len); 121 void (*transfer_area) (int width, int height, 122 void (callback)(void *data), void *data); 123 int (*setup_tearsync) (unsigned pin_cnt, 124 unsigned hs_pulse_time, unsigned vs_pulse_time, 125 int hs_pol_inv, int vs_pol_inv, int div); 126 int (*enable_tearsync) (int enable, unsigned line); 127 128 unsigned long max_transmit_size; 129 }; 130 131 struct omapfb_notifier_block { 132 struct notifier_block nb; 133 void *data; 134 int plane_idx; 135 }; 136 137 typedef int (*omapfb_notifier_callback_t)(struct notifier_block *, 138 unsigned long event, 139 void *fbi); 140 141 struct lcd_ctrl { 142 const char *name; 143 void *data; 144 145 int (*init) (struct omapfb_device *fbdev, 146 int ext_mode, 147 struct omapfb_mem_desc *req_md); 148 void (*cleanup) (void); 149 void (*bind_client) (struct omapfb_notifier_block *nb); 150 void (*get_caps) (int plane, struct omapfb_caps *caps); 151 int (*set_update_mode)(enum omapfb_update_mode mode); 152 enum omapfb_update_mode (*get_update_mode)(void); 153 int (*setup_plane) (int plane, int channel_out, 154 unsigned long offset, 155 int screen_width, 156 int pos_x, int pos_y, int width, 157 int height, int color_mode); 158 int (*set_rotate) (int angle); 159 int (*setup_mem) (int plane, size_t size, 160 int mem_type, unsigned long *paddr); 161 int (*mmap) (struct fb_info *info, 162 struct vm_area_struct *vma); 163 int (*set_scale) (int plane, 164 int orig_width, int orig_height, 165 int out_width, int out_height); 166 int (*enable_plane) (int plane, int enable); 167 int (*update_window) (struct fb_info *fbi, 168 struct omapfb_update_window *win, 169 void (*callback)(void *), 170 void *callback_data); 171 void (*sync) (void); 172 void (*suspend) (void); 173 void (*resume) (void); 174 int (*run_test) (int test_num); 175 int (*setcolreg) (u_int regno, u16 red, u16 green, 176 u16 blue, u16 transp, 177 int update_hw_mem); 178 int (*set_color_key) (struct omapfb_color_key *ck); 179 int (*get_color_key) (struct omapfb_color_key *ck); 180 }; 181 182 enum omapfb_state { 183 OMAPFB_DISABLED = 0, 184 OMAPFB_SUSPENDED = 99, 185 OMAPFB_ACTIVE = 100 186 }; 187 188 struct omapfb_plane_struct { 189 int idx; 190 struct omapfb_plane_info info; 191 enum omapfb_color_format color_mode; 192 struct omapfb_device *fbdev; 193 }; 194 195 struct omapfb_device { 196 int state; 197 int ext_lcdc; /* Using external 198 LCD controller */ 199 struct mutex rqueue_mutex; 200 201 int palette_size; 202 u32 pseudo_palette[17]; 203 204 struct lcd_panel *panel; /* LCD panel */ 205 const struct lcd_ctrl *ctrl; /* LCD controller */ 206 const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */ 207 int ext_irq; 208 int int_irq; 209 struct lcd_ctrl_extif *ext_if; /* LCD ctrl external 210 interface */ 211 struct device *dev; 212 struct fb_var_screeninfo new_var; /* for mode changes */ 213 214 struct omapfb_mem_desc mem_desc; 215 struct fb_info *fb_info[OMAPFB_PLANE_NUM]; 216 217 struct platform_device *dssdev; /* dummy dev for clocks */ 218 }; 219 220 extern struct lcd_ctrl omap1_lcd_ctrl; 221 222 extern void omapfb_register_panel(struct lcd_panel *panel); 223 extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval); 224 extern void omapfb_notify_clients(struct omapfb_device *fbdev, 225 unsigned long event); 226 extern int omapfb_register_client(struct omapfb_notifier_block *nb, 227 omapfb_notifier_callback_t callback, 228 void *callback_data); 229 extern int omapfb_unregister_client(struct omapfb_notifier_block *nb); 230 extern int omapfb_update_window_async(struct fb_info *fbi, 231 struct omapfb_update_window *win, 232 void (*callback)(void *), 233 void *callback_data); 234 extern int hwa742_update_window_async(struct fb_info *fbi, 235 struct omapfb_update_window *win, 236 void (*callback)(void *), 237 void *callback_data); 238 239 #endif /* __OMAPFB_H */ 240