1 /* $NetBSD: pxa2x0_lcd.h,v 1.11 2022/03/09 23:09:15 andvar Exp $ */ 2 /* 3 * Copyright (c) 2002 Genetec Corporation. All rights reserved. 4 * Written by Hiroyuki Bessho for Genetec Corporation. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed for the NetBSD Project by 17 * Genetec Corporation. 18 * 4. The name of Genetec Corporation may not be used to endorse or 19 * promote products derived from this software without specific prior 20 * written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 36 #ifndef _ARM_XSCALE_PXA2X0_LCD_H 37 #define _ARM_XSCALE_PXA2X0_LCD_H 38 39 #include <dev/rasops/rasops.h> 40 #include <sys/bus.h> 41 42 /* LCD Contoroller */ 43 44 struct lcd_dma_descriptor { 45 uint32_t fdadr; /* next frame descriptor */ 46 uint32_t fsadr; /* frame start address */ 47 uint32_t fidr; /* frame ID */ 48 uint32_t ldcmd; /* DMA command */ 49 #define LDCMD_PAL (1U<<26) /* Pallet buffer */ 50 #define LDCMD_SOFINT (1U<<22) /* Start of Frame interrupt */ 51 #define LDCMD_EOFINT (1U<<21) /* End of Frame interrupt */ 52 }; 53 54 55 struct pxa2x0_lcd_screen { 56 LIST_ENTRY(pxa2x0_lcd_screen) link; 57 58 /* Frame buffer */ 59 bus_dmamap_t dma; 60 bus_dma_segment_t segs[1]; 61 int nsegs; 62 size_t buf_size; 63 size_t map_size; 64 void *buf_va; 65 int depth; 66 67 /* DMA frame descriptor */ 68 struct lcd_dma_descriptor *dma_desc; 69 paddr_t dma_desc_pa; 70 71 /* rasterop */ 72 struct rasops_info rinfo; 73 }; 74 75 struct pxa2x0_lcd_softc { 76 device_t dev; 77 /* control register */ 78 bus_space_tag_t iot; 79 bus_space_handle_t ioh; 80 bus_dma_tag_t dma_tag; 81 82 uint32_t flags; 83 #define FLAG_NOUSE_ACBIAS (1U<<0) 84 85 const struct lcd_panel_geometry *geometry; 86 87 int n_screens; 88 LIST_HEAD(, pxa2x0_lcd_screen) screens; 89 struct pxa2x0_lcd_screen *active; 90 void *ih; /* interrupt handler */ 91 }; 92 93 struct lcd_panel_geometry { 94 short panel_width; 95 short panel_height; 96 short extra_lines; 97 98 short panel_info; 99 #define LCDPANEL_VSP (1<<0) /* L_FCLK pin is active low */ 100 #define LCDPANEL_HSP (1<<1) /* L_LCLK pin is active low */ 101 #define LCDPANEL_PCP (1<<2) /* use L_PCLK falling edge */ 102 #define LCDPANEL_OEP (1<<3) /* L_BIAS pin is active low */ 103 #define LCDPANEL_DPC (1<<4) /* double pixel clock mode */ 104 105 #define LCDPANEL_DUAL (1<<5) /* Dual or single */ 106 #define LCDPANEL_SINGLE 0 107 #define LCDPANEL_ACTIVE (1<<6) /* Active or Passive */ 108 #define LCDPANEL_PASSIVE 0 109 #define LCDPANEL_MONOCHROME (1<<7) /* depth=1 */ 110 111 short pixel_clock_div; /* pixel clock divider */ 112 short ac_bias; /* AC bias pin frequency */ 113 114 short hsync_pulse_width; /* Horizontal sync pulse width */ 115 short beg_line_wait; /* beginning of line wait (BLW) */ 116 short end_line_wait; /* end of line wait (ELW) */ 117 118 short vsync_pulse_width; /* vertical sync pulse width */ 119 short beg_frame_wait; /* beginning of frame wait (BFW) */ 120 short end_frame_wait; /* end of frame wait (EFW) */ 121 122 short pcd_div; /* PCD divisor selection */ 123 }; 124 125 /* 126 * we need bits-per-pixel value to configure wsdisplay screen 127 */ 128 struct pxa2x0_wsscreen_descr { 129 struct wsscreen_descr c; /* standard descriptor */ 130 int depth; /* bits per pixel */ 131 int flags; /* rasops flags */ 132 }; 133 134 void pxa2x0_lcd_attach_sub(struct pxa2x0_lcd_softc *, 135 struct pxaip_attach_args *, const struct lcd_panel_geometry *); 136 int pxa2x0_lcd_cnattach(struct pxa2x0_wsscreen_descr *, 137 const struct lcd_panel_geometry *); 138 void pxa2x0_lcd_start_dma(struct pxa2x0_lcd_softc *, 139 struct pxa2x0_lcd_screen *); 140 141 void pxa2x0_lcd_geometry(struct pxa2x0_lcd_softc *, 142 const struct lcd_panel_geometry *); 143 int pxa2x0_lcd_new_screen(struct pxa2x0_lcd_softc *, int, 144 struct pxa2x0_lcd_screen **); 145 146 int pxa2x0_lcd_setup_wsscreen(struct pxa2x0_wsscreen_descr *, 147 const struct lcd_panel_geometry *, const char * ); 148 149 int pxa2x0_lcd_alloc_screen(void *, const struct wsscreen_descr *, 150 void **, int *, int *, long *); 151 void pxa2x0_lcd_free_screen(void *, void *); 152 int pxa2x0_lcd_ioctl(void *, void *, u_long, void *, int, struct lwp *); 153 paddr_t pxa2x0_lcd_mmap(void *, void *, off_t, int); 154 int pxa2x0_lcd_show_screen(void *, void *, int, void (*)(void *, int, int), 155 void *); 156 void pxa2x0_lcd_power(int, void *); 157 void pxa2x0_lcd_suspend(struct pxa2x0_lcd_softc *); 158 void pxa2x0_lcd_resume(struct pxa2x0_lcd_softc *); 159 160 extern const struct wsdisplay_emulops pxa2x0_lcd_emulops; 161 162 #endif /* _ARM_XSCALE_PXA2X0_LCD_H */ 163
Indexes created Sun Sep 21 19:09:51 GMT 2025