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 | #endif /* __OMAPFB_H */ |
231 | |