1 /* $NetBSD: netwalker_lcd.c,v 1.7 2020/01/15 10:25:47 skrll Exp $ */ 2 3 /*- 4 * Copyright (c) 2011, 2012 Genetec corp. All rights reserved. 5 * Written by Hashimoto Kenichi for Genetec corp. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: netwalker_lcd.c,v 1.7 2020/01/15 10:25:47 skrll Exp $"); 31 32 #include "opt_imx51_ipuv3.h" 33 #include "opt_netwalker_lcd.h" 34 35 #include "wsdisplay.h" 36 #include "ioconf.h" 37 #include "netwalker_backlight.h" 38 39 #define _INTR_PRIVATE 40 41 #include <sys/param.h> 42 #include <sys/device.h> 43 #include <sys/gpio.h> 44 45 #include <sys/bus.h> 46 #include <arm/imx/imx51var.h> 47 #include <arm/imx/imx51reg.h> 48 #include <arm/imx/imx51_ipuv3var.h> 49 #include <arm/imx/imx51_ipuv3reg.h> 50 #include <arm/imx/imxgpiovar.h> 51 52 #include <evbarm/netwalker/netwalker_backlightvar.h> 53 54 int lcd_match(device_t, cfdata_t, void *); 55 void lcd_attach(device_t, device_t, void *); 56 57 #if NWSDISPLAY == 0 58 59 #ifdef LCD_DEBUG 60 static void draw_test_pattern(struct imx51_ipuv3_softc *, 61 struct imx51_ipuv3_screen *); 62 #endif 63 64 /* 65 * Interface to LCD framebuffer without wscons 66 */ 67 extern struct cfdriver ipu_cd; 68 69 dev_type_open(lcdopen); 70 dev_type_close(lcdclose); 71 dev_type_ioctl(lcdioctl); 72 dev_type_mmap(lcdmmap); 73 const struct cdevsw ipu_cdevsw = { 74 .d_open = lcdopen, 75 .d_close = lcdclose, 76 .d_read = noread, 77 .d_write = nowrite, 78 .d_ioctl = lcdioctl, 79 .d_stop = nostop, 80 .d_tty = notty, 81 .d_poll = nopoll, 82 .d_mmap = lcdmmap, 83 .d_kqfilter = nokqfilter, 84 .d_discard = nodiscard, 85 .d_flag = D_TTY 86 }; 87 88 #endif 89 90 CFATTACH_DECL_NEW(lcd_netwalker, sizeof (struct imx51_ipuv3_softc), 91 lcd_match, lcd_attach, NULL, NULL); 92 93 int 94 lcd_match( device_t parent, cfdata_t cf, void *aux ) 95 { 96 return 1; 97 } 98 99 /* Sharp's LCD */ 100 static const struct lcd_panel_geometry sharp_panel = { 101 .depth = 16, 102 103 .panel_width = 1024, /* Width */ 104 .panel_height = 600, /* Height */ 105 106 .pixel_clk = 30076000, 107 108 .hsync_width = 8, 109 .left = 20, 110 .right = 20, 111 112 .vsync_width = 4, 113 .upper = 2, 114 .lower = 2, 115 116 .panel_info = 0, 117 }; 118 119 void lcd_attach( device_t parent, device_t self, void *aux ) 120 { 121 struct imx51_ipuv3_softc *sc = device_private(self); 122 struct axi_attach_args *axia = aux; 123 bus_space_tag_t iot = axia->aa_iot; 124 125 sc->dev = self; 126 127 /* XXX move this to imx51_ipuv3.c */ 128 { 129 bus_space_handle_t mipi_ioh; 130 uint32_t reg; 131 132 if (bus_space_map(iot, 0x83fdc000, 0x1000, 0, &mipi_ioh)) 133 aprint_error_dev(self, "can't map MIPI HSC"); 134 else { 135 bus_space_write_4(iot, mipi_ioh, 0x000, 0xf00); 136 137 reg = bus_space_read_4(iot, mipi_ioh, 0x800); 138 bus_space_write_4(iot, mipi_ioh, 0x800, reg | 0x0ff); 139 140 reg = bus_space_read_4(iot, mipi_ioh, 0x800); 141 bus_space_write_4(iot, mipi_ioh, 0x800, reg | 0x10000); 142 } 143 } 144 145 /* LCD power on */ 146 imxgpio_set_direction(GPIO_NO(4, 9), GPIO_PIN_OUTPUT); 147 imxgpio_set_direction(GPIO_NO(4, 10), GPIO_PIN_OUTPUT); 148 imxgpio_set_direction(GPIO_NO(3, 3), GPIO_PIN_OUTPUT); 149 150 imxgpio_data_write(GPIO_NO(3, 3), GPIO_PIN_HIGH); 151 imxgpio_data_write(GPIO_NO(4, 9), GPIO_PIN_HIGH); 152 delay(180 * 1000); 153 imxgpio_data_write(GPIO_NO(4, 10), GPIO_PIN_HIGH); 154 155 imxgpio_set_direction(GPIO_NO(2, 13), GPIO_PIN_OUTPUT); 156 imxgpio_data_write(GPIO_NO(2, 13), GPIO_PIN_HIGH); 157 158 imx51_ipuv3_attach_sub(sc, aux, &sharp_panel); 159 160 #if NWSDISPLAY == 0 161 struct imx51_ipuv3_screen *screen; 162 int error; 163 164 error = imx51_ipuv3_new_screen(sc, &screen); 165 #ifdef LCD_DEBUG 166 draw_test_pattern(sc, screen); 167 #endif 168 if (error == 0) { 169 sc->active = screen; 170 imx51_ipuv3_start_dma(sc, screen); 171 } 172 #endif 173 } 174 175 #if NWSDISPLAY == 0 176 177 int 178 lcdopen(dev_t dev, int oflags, int devtype, struct lwp *l) 179 { 180 return 0; 181 } 182 183 int 184 lcdclose(dev_t dev, int fflag, int devtype, struct lwp *l) 185 { 186 return 0; 187 } 188 189 paddr_t 190 lcdmmap(dev_t dev, off_t offset, int size) 191 { 192 struct imx51_ipuv3_softc *sc = 193 device_lookup_private(&ipu_cd, minor(dev)); 194 struct imx51_ipuv3_screen *scr = sc->active; 195 196 return bus_dmamem_mmap(sc->dma_tag, scr->segs, scr->nsegs, 197 offset, 0, BUS_DMA_WAITOK|BUS_DMA_COHERENT); 198 } 199 200 int 201 lcdioctl(dev_t dev, u_long cmd, void *data, 202 int fflag, struct lwp *l) 203 { 204 return EOPNOTSUPP; 205 } 206 207 #ifdef LCD_DEBUG 208 static void 209 draw_test_pattern(struct imx51_ipuv3_softc *sc, 210 struct imx51_ipuv3_screen *scr) 211 { 212 int x, y; 213 uint16_t color, *line; 214 char *buf = (char *)(scr->buf_va); 215 216 printf("%s: buf_va %p, size 0x%x\n", __func__, buf, 217 (uint)scr->buf_size); 218 printf("%s: panel %d x %d\n", __func__, 219 sc->geometry->panel_width, 220 sc->geometry->panel_height); 221 #define rgb(r,g,b) (((r)<<11) | ((g)<<5) | (b)) 222 223 for (y=0; y < sc->geometry->panel_height; ++y) { 224 line = (uint16_t *)(buf + scr->stride * y); 225 226 for (x=0; x < sc->geometry->panel_width; ++x) { 227 switch (((x/30) + (y/10)) % 8) { 228 default: 229 case 0: color = rgb(0x00, 0x00, 0x00); break; 230 case 1: color = rgb(0x00, 0x00, 0x1f); break; 231 case 2: color = rgb(0x00, 0x3f, 0x00); break; 232 case 3: color = rgb(0x00, 0x3f, 0x1f); break; 233 case 4: color = rgb(0x1f, 0x00, 0x00); break; 234 case 5: color = rgb(0x1f, 0x00, 0x1f); break; 235 case 6: color = rgb(0x1f, 0x3f, 0x00); break; 236 case 7: color = rgb(0x1f, 0x3f, 0x1f); break; 237 } 238 239 line[x] = color; 240 } 241 } 242 243 for (x=0; x < MIN(sc->geometry->panel_height, 244 sc->geometry->panel_width); ++x) { 245 line = (uint16_t *)(buf + scr->stride * x); 246 line[x] = rgb(0x1f, 0x3f, 0x1f); 247 } 248 } 249 #endif 250 251 #endif /* NWSDISPLAY == 0 */ 252 253 254
Indexes created Sun Sep 21 20:09:37 GMT 2025