netwalker_lcd.c revision 1.2
1 /* $NetBSD: netwalker_lcd.c,v 1.2 2014/03/16 05:20:24 dholland 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 #include <sys/param.h> 29 #include <sys/systm.h> 30 #include <sys/conf.h> 31 #include <sys/uio.h> 32 #include <sys/malloc.h> 33 #include <sys/device.h> 34 35 #include <dev/cons.h> 36 #include <dev/wscons/wsconsio.h> 37 #include <dev/wscons/wsdisplayvar.h> 38 #include <dev/wscons/wscons_callbacks.h> 39 40 #include <sys/bus.h> 41 #include <arm/imx/imx51var.h> 42 #include <arm/imx/imx51reg.h> 43 #include <arm/imx/imx51_ipuv3var.h> 44 #include <arm/imx/imx51_ipuv3reg.h> 45 #include <arm/imx/imx51_iomuxreg.h> 46 #include <arm/imx/imxgpiovar.h> 47 48 #include "opt_imx51_ipuv3.h" 49 #include "opt_netwalker_lcd.h" 50 51 #include "wsdisplay.h" 52 #include "ioconf.h" 53 54 int lcd_match(device_t, cfdata_t, void *); 55 void lcd_attach(device_t, device_t, void *); 56 57 void netwalker_cnattach(void); 58 59 #if NWSDISPLAY > 0 60 #else 61 #ifdef LCD_DEBUG 62 static void draw_test_pattern(struct imx51_ipuv3_softc *, 63 struct imx51_ipuv3_screen *); 64 #endif 65 66 /* 67 * Interface to LCD framebuffer without wscons 68 */ 69 extern struct cfdriver ipu_cd; 70 71 dev_type_open(lcdopen); 72 dev_type_close(lcdclose); 73 dev_type_ioctl(lcdioctl); 74 dev_type_mmap(lcdmmap); 75 const struct cdevsw ipu_cdevsw = { 76 .d_open = lcdopen, 77 .d_close = lcdclose, 78 .d_read = noread, 79 .d_write = nowrite, 80 .d_ioctl = lcdioctl, 81 .d_stop = nostop, 82 .d_tty = notty, 83 .d_poll = nopoll, 84 .d_mmap = lcdmmap, 85 .d_kqfilter = nokqfilter, 86 .d_flag = D_TTY 87 }; 88 89 #endif 90 91 CFATTACH_DECL_NEW(lcd_netwalker, sizeof (struct imx51_ipuv3_softc), 92 lcd_match, lcd_attach, NULL, NULL); 93 94 int 95 lcd_match( device_t parent, cfdata_t cf, void *aux ) 96 { 97 return 1; 98 } 99 100 /* Sharp's LCD */ 101 static const struct lcd_panel_geometry sharp_panel = 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 #define PANEL sharp_panel 120 121 void lcd_attach( device_t parent, device_t self, void *aux ) 122 { 123 struct imx51_ipuv3_softc *sc = device_private(self); 124 struct axi_attach_args *axia = aux; 125 bus_space_tag_t iot = axia->aa_iot; 126 127 sc->dev = self; 128 129 #if (NWSDISPLAY > 0) && defined(IMXIPUCONSOLE) 130 netwalker_cnattach(); 131 #endif 132 133 #if 0 134 /* IOMUX registers are already set correctly for LCD display */ 135 iomux_mux_config(iomux_ipuv3_config); 136 #endif 137 138 /* XXX move this to imx51_ipuv3.c */ 139 { 140 bus_space_handle_t mipi_ioh; 141 uint32_t reg; 142 143 if (bus_space_map(iot, 0x83fdc000, 0x1000, 0, &mipi_ioh)) 144 aprint_error_dev(self, "can't map MIPI HSC"); 145 else { 146 bus_space_write_4(iot, mipi_ioh, 0x000, 0xf00); 147 148 reg = bus_space_read_4(iot, mipi_ioh, 0x800); 149 bus_space_write_4(iot, mipi_ioh, 0x800, reg | 0x0ff); 150 151 reg = bus_space_read_4(iot, mipi_ioh, 0x800); 152 bus_space_write_4(iot, mipi_ioh, 0x800, reg | 0x10000); 153 } 154 } 155 156 /* LCD power on */ 157 gpio_set_direction(GPIO_NO(4, 9), GPIO_DIR_OUT); 158 gpio_set_direction(GPIO_NO(4, 10), GPIO_DIR_OUT); 159 gpio_set_direction(GPIO_NO(3, 3), GPIO_DIR_OUT); 160 161 gpio_data_write(GPIO_NO(3, 3), 1); 162 gpio_data_write(GPIO_NO(4, 9), 1); 163 delay(180 * 1000); 164 gpio_data_write(GPIO_NO(4, 10), 1); 165 166 /* pwm pin (100%) */ 167 gpio_set_direction(GPIO_NO(1, 2), GPIO_DIR_OUT); 168 gpio_data_write(GPIO_NO(1, 2), 1); 169 170 gpio_set_direction(GPIO_NO(2, 13), GPIO_DIR_OUT); 171 gpio_data_write(GPIO_NO(2, 13), 1); 172 173 imx51_ipuv3_attach_sub(sc, aux, &PANEL); 174 175 #if NWSDISPLAY == 0 176 { 177 struct imx51_ipuv3_screen *screen; 178 int error; 179 180 error = imx51_ipuv3_new_screen(sc, 16, &screen); 181 #ifdef LCD_DEBUG 182 draw_test_pattern(sc, screen); 183 #endif 184 if (error == 0) { 185 sc->active = screen; 186 imx51_ipuv3_start_dma(sc, screen); 187 } 188 } 189 #endif 190 } 191 192 #if NWSDISPLAY > 0 193 void 194 netwalker_cnattach(void) 195 { 196 imx51_ipuv3_cnattach(&PANEL); 197 return; 198 } 199 #else 200 201 int 202 lcdopen(dev_t dev, int oflags, int devtype, struct lwp *l) 203 { 204 return 0; 205 } 206 207 int 208 lcdclose(dev_t dev, int fflag, int devtype, struct lwp *l) 209 { 210 return 0; 211 } 212 213 paddr_t 214 lcdmmap(dev_t dev, off_t offset, int size) 215 { 216 struct imx51_ipuv3_softc *sc = 217 device_lookup_private(&ipu_cd, minor(dev)); 218 struct imx51_ipuv3_screen *scr = sc->active; 219 220 return bus_dmamem_mmap(sc->dma_tag, scr->segs, scr->nsegs, 221 offset, 0, BUS_DMA_WAITOK|BUS_DMA_COHERENT); 222 } 223 224 int 225 lcdioctl(dev_t dev, u_long cmd, void *data, 226 int fflag, struct lwp *l) 227 { 228 return EOPNOTSUPP; 229 } 230 231 #ifdef LCD_DEBUG 232 static void 233 draw_test_pattern(struct imx51_ipuv3_softc *sc, 234 struct imx51_ipuv3_screen *scr) 235 { 236 int x, y; 237 uint16_t color, *line; 238 char *buf = (char *)(scr->buf_va); 239 240 printf("%s: buf_va %p, size 0x%x\n", __func__, buf, 241 (uint)scr->buf_size); 242 printf("%s: panel %d x %d\n", __func__, 243 sc->geometry->panel_width, 244 sc->geometry->panel_height); 245 #define rgb(r,g,b) (((r)<<11) | ((g)<<5) | (b)) 246 247 for (y=0; y < sc->geometry->panel_height; ++y) { 248 line = (uint16_t *)(buf + scr->stride * y); 249 250 for (x=0; x < sc->geometry->panel_width; ++x) { 251 switch (((x/30) + (y/10)) % 8) { 252 default: 253 case 0: color = rgb(0x00, 0x00, 0x00); break; 254 case 1: color = rgb(0x00, 0x00, 0x1f); break; 255 case 2: color = rgb(0x00, 0x3f, 0x00); break; 256 case 3: color = rgb(0x00, 0x3f, 0x1f); break; 257 case 4: color = rgb(0x1f, 0x00, 0x00); break; 258 case 5: color = rgb(0x1f, 0x00, 0x1f); break; 259 case 6: color = rgb(0x1f, 0x3f, 0x00); break; 260 case 7: color = rgb(0x1f, 0x3f, 0x1f); break; 261 } 262 263 line[x] = color; 264 } 265 } 266 267 for (x=0; x < MIN(sc->geometry->panel_height, 268 sc->geometry->panel_width); ++x) { 269 line = (uint16_t *)(buf + scr->stride * x); 270 line[x] = rgb(0x1f, 0x3f, 0x1f); 271 } 272 } 273 #endif 274 275 #endif /* NWSDISPLAY > 0 */ 276 277 278
Indexes created Wed Sep 24 02:09:48 GMT 2025