The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/arm/freescale/vybrid/vf_dcu4.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 /*
   28  * Vybrid Family Display Control Unit (DCU4)
   29  * Chapter 55, Vybrid Reference Manual, Rev. 5, 07/2013
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: releng/10.2/sys/arm/freescale/vybrid/vf_dcu4.c 266274 2014-05-16 23:27:18Z ian $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/bus.h>
   38 #include <sys/kernel.h>
   39 #include <sys/module.h>
   40 #include <sys/malloc.h>
   41 #include <sys/rman.h>
   42 #include <sys/timeet.h>
   43 #include <sys/timetc.h>
   44 #include <sys/watchdog.h>
   45 #include <sys/fbio.h>
   46 #include <sys/consio.h>
   47 #include <sys/eventhandler.h>
   48 #include <sys/gpio.h>
   49 
   50 #include <dev/fdt/fdt_common.h>
   51 #include <dev/ofw/openfirm.h>
   52 #include <dev/ofw/ofw_bus.h>
   53 #include <dev/ofw/ofw_bus_subr.h>
   54 
   55 #include <dev/vt/vt.h>
   56 #include <dev/vt/colors/vt_termcolors.h>
   57 
   58 #include "gpio_if.h"
   59 
   60 #include <machine/bus.h>
   61 #include <machine/fdt.h>
   62 #include <machine/cpu.h>
   63 #include <machine/intr.h>
   64 
   65 #include "fb_if.h"
   66 
   67 #include <arm/freescale/vybrid/vf_common.h>
   68 
   69 #define DCU_CTRLDESCCURSOR1     0x000   /* Control Descriptor Cursor 1 */
   70 #define DCU_CTRLDESCCURSOR2     0x004   /* Control Descriptor Cursor 2 */
   71 #define DCU_CTRLDESCCURSOR3     0x008   /* Control Descriptor Cursor 3 */
   72 #define DCU_CTRLDESCCURSOR4     0x00C   /* Control Descriptor Cursor 4 */
   73 #define DCU_DCU_MODE            0x010   /* DCU4 Mode */
   74 #define  DCU_MODE_M             0x3
   75 #define  DCU_MODE_S             0
   76 #define  DCU_MODE_NORMAL        0x1
   77 #define  DCU_MODE_TEST          0x2
   78 #define  DCU_MODE_COLBAR        0x3
   79 #define  RASTER_EN              (1 << 14)       /* Raster scan of pixel data */
   80 #define  PDI_EN                 (1 << 13)
   81 #define  PDI_DE_MODE            (1 << 11)
   82 #define  PDI_MODE_M             2
   83 #define DCU_BGND                0x014   /* Background */
   84 #define DCU_DISP_SIZE           0x018   /* Display Size */
   85 #define  DELTA_M                0x7ff
   86 #define  DELTA_Y_S              16
   87 #define  DELTA_X_S              0
   88 #define DCU_HSYN_PARA           0x01C   /* Horizontal Sync Parameter */
   89 #define  BP_H_SHIFT             22
   90 #define  PW_H_SHIFT             11
   91 #define  FP_H_SHIFT             0
   92 #define DCU_VSYN_PARA           0x020   /* Vertical Sync Parameter */
   93 #define  BP_V_SHIFT             22
   94 #define  PW_V_SHIFT             11
   95 #define  FP_V_SHIFT             0
   96 #define DCU_SYNPOL              0x024   /* Synchronize Polarity */
   97 #define  INV_HS                 (1 << 0)
   98 #define  INV_VS                 (1 << 1)
   99 #define  INV_PDI_VS             (1 << 8) /* Polarity of PDI input VSYNC. */
  100 #define  INV_PDI_HS             (1 << 9) /* Polarity of PDI input HSYNC. */
  101 #define  INV_PDI_DE             (1 << 10) /* Polarity of PDI input DE. */
  102 #define DCU_THRESHOLD           0x028   /* Threshold */
  103 #define  LS_BF_VS_SHIFT         16
  104 #define  OUT_BUF_HIGH_SHIFT     8
  105 #define  OUT_BUF_LOW_SHIFT      0
  106 #define DCU_INT_STATUS          0x02C   /* Interrupt Status */
  107 #define DCU_INT_MASK            0x030   /* Interrupt Mask */
  108 #define DCU_COLBAR_1            0x034   /* COLBAR_1 */
  109 #define DCU_COLBAR_2            0x038   /* COLBAR_2 */
  110 #define DCU_COLBAR_3            0x03C   /* COLBAR_3 */
  111 #define DCU_COLBAR_4            0x040   /* COLBAR_4 */
  112 #define DCU_COLBAR_5            0x044   /* COLBAR_5 */
  113 #define DCU_COLBAR_6            0x048   /* COLBAR_6 */
  114 #define DCU_COLBAR_7            0x04C   /* COLBAR_7 */
  115 #define DCU_COLBAR_8            0x050   /* COLBAR_8 */
  116 #define DCU_DIV_RATIO           0x054   /* Divide Ratio */
  117 #define DCU_SIGN_CALC_1         0x058   /* Sign Calculation 1 */
  118 #define DCU_SIGN_CALC_2         0x05C   /* Sign Calculation 2 */
  119 #define DCU_CRC_VAL             0x060   /* CRC Value */
  120 #define DCU_PDI_STATUS          0x064   /* PDI Status */
  121 #define DCU_PDI_STA_MSK         0x068   /* PDI Status Mask */
  122 #define DCU_PARR_ERR_STATUS1    0x06C   /* Parameter Error Status 1 */
  123 #define DCU_PARR_ERR_STATUS2    0x070   /* Parameter Error Status 2 */
  124 #define DCU_PARR_ERR_STATUS3    0x07C   /* Parameter Error Status 3 */
  125 #define DCU_MASK_PARR_ERR_ST1   0x080   /* Mask Parameter Error Status 1 */
  126 #define DCU_MASK_PARR_ERR_ST2   0x084   /* Mask Parameter Error Status 2 */
  127 #define DCU_MASK_PARR_ERR_ST3   0x090   /* Mask Parameter Error Status 3 */
  128 #define DCU_THRESHOLD_INP_BUF_1 0x094   /* Threshold Input 1 */
  129 #define DCU_THRESHOLD_INP_BUF_2 0x098   /* Threshold Input 2 */
  130 #define DCU_THRESHOLD_INP_BUF_3 0x09C   /* Threshold Input 3 */
  131 #define DCU_LUMA_COMP           0x0A0   /* LUMA Component */
  132 #define DCU_CHROMA_RED          0x0A4   /* Red Chroma Components */
  133 #define DCU_CHROMA_GREEN        0x0A8   /* Green Chroma Components */
  134 #define DCU_CHROMA_BLUE         0x0AC   /* Blue Chroma Components */
  135 #define DCU_CRC_POS             0x0B0   /* CRC Position */
  136 #define DCU_LYR_INTPOL_EN       0x0B4   /* Layer Interpolation Enable */
  137 #define DCU_LYR_LUMA_COMP       0x0B8   /* Layer Luminance Component */
  138 #define DCU_LYR_CHRM_RED        0x0BC   /* Layer Chroma Red */
  139 #define DCU_LYR_CHRM_GRN        0x0C0   /* Layer Chroma Green */
  140 #define DCU_LYR_CHRM_BLUE       0x0C4   /* Layer Chroma Blue */
  141 #define DCU_COMP_IMSIZE         0x0C8   /* Compression Image Size */
  142 #define DCU_UPDATE_MODE         0x0CC   /* Update Mode */
  143 #define  READREG                (1 << 30)
  144 #define  MODE                   (1 << 31)
  145 #define DCU_UNDERRUN            0x0D0   /* Underrun */
  146 #define DCU_GLBL_PROTECT        0x100   /* Global Protection */
  147 #define DCU_SFT_LCK_BIT_L0      0x104   /* Soft Lock Bit Layer 0 */
  148 #define DCU_SFT_LCK_BIT_L1      0x108   /* Soft Lock Bit Layer 1 */
  149 #define DCU_SFT_LCK_DISP_SIZE   0x10C   /* Soft Lock Display Size */
  150 #define DCU_SFT_LCK_HS_VS_PARA  0x110   /* Soft Lock Hsync/Vsync Parameter */
  151 #define DCU_SFT_LCK_POL         0x114   /* Soft Lock POL */
  152 #define DCU_SFT_LCK_L0_TRANSP   0x118   /* Soft Lock L0 Transparency */
  153 #define DCU_SFT_LCK_L1_TRANSP   0x11C   /* Soft Lock L1 Transparency */
  154 
  155 /* Control Descriptor */
  156 #define DCU_CTRLDESCL(n, m)     0x200 + (0x40 * n) + 0x4 * (m - 1)
  157 #define DCU_CTRLDESCLn_1(n)     DCU_CTRLDESCL(n, 1)
  158 #define DCU_CTRLDESCLn_2(n)     DCU_CTRLDESCL(n, 2)
  159 #define DCU_CTRLDESCLn_3(n)     DCU_CTRLDESCL(n, 3)
  160 #define  TRANS_SHIFT            20
  161 #define DCU_CTRLDESCLn_4(n)     DCU_CTRLDESCL(n, 4)
  162 #define  BPP_MASK               0xf             /* Bit per pixel Mask */
  163 #define  BPP_SHIFT              16              /* Bit per pixel Shift */
  164 #define  BPP24                  0x5
  165 #define  EN_LAYER               (1 << 31)       /* Enable the layer */
  166 #define DCU_CTRLDESCLn_5(n)     DCU_CTRLDESCL(n, 5)
  167 #define DCU_CTRLDESCLn_6(n)     DCU_CTRLDESCL(n, 6)
  168 #define DCU_CTRLDESCLn_7(n)     DCU_CTRLDESCL(n, 7)
  169 #define DCU_CTRLDESCLn_8(n)     DCU_CTRLDESCL(n, 8)
  170 #define DCU_CTRLDESCLn_9(n)     DCU_CTRLDESCL(n, 9)
  171 
  172 #define NUM_LAYERS      64
  173 
  174 struct panel_info {
  175         uint32_t        width;
  176         uint32_t        height;
  177         uint32_t        h_back_porch;
  178         uint32_t        h_pulse_width;
  179         uint32_t        h_front_porch;
  180         uint32_t        v_back_porch;
  181         uint32_t        v_pulse_width;
  182         uint32_t        v_front_porch;
  183         uint32_t        clk_div;
  184         uint32_t        backlight_pin;
  185 };
  186 
  187 struct dcu_softc {
  188         struct resource         *res[2];
  189         bus_space_tag_t         bst;
  190         bus_space_handle_t      bsh;
  191         void                    *ih;
  192         device_t                dev;
  193         device_t                sc_fbd;         /* fbd child */
  194         struct fb_info          sc_info;
  195         struct panel_info       *panel;
  196 };
  197 
  198 static struct resource_spec dcu_spec[] = {
  199         { SYS_RES_MEMORY,       0,      RF_ACTIVE },
  200         { SYS_RES_IRQ,          0,      RF_ACTIVE },
  201         { -1, 0 }
  202 };
  203 
  204 static int
  205 dcu_probe(device_t dev)
  206 {
  207 
  208         if (!ofw_bus_status_okay(dev))
  209                 return (ENXIO);
  210 
  211         if (!ofw_bus_is_compatible(dev, "fsl,mvf600-dcu4"))
  212                 return (ENXIO);
  213 
  214         device_set_desc(dev, "Vybrid Family Display Control Unit (DCU4)");
  215         return (BUS_PROBE_DEFAULT);
  216 }
  217 
  218 static void
  219 dcu_intr(void *arg)
  220 {
  221         struct dcu_softc *sc;
  222         int reg;
  223 
  224         sc = arg;
  225 
  226         /* Ack interrupts */
  227         reg = READ4(sc, DCU_INT_STATUS);
  228         WRITE4(sc, DCU_INT_STATUS, reg);
  229 
  230         /* TODO interrupt handler */
  231 }
  232 
  233 static int
  234 get_panel_info(struct dcu_softc *sc, struct panel_info *panel)
  235 {
  236         phandle_t node;
  237         pcell_t dts_value[3];
  238         int len;
  239 
  240         if ((node = ofw_bus_get_node(sc->dev)) == -1)
  241                 return (ENXIO);
  242 
  243         /* panel size */
  244         if ((len = OF_getproplen(node, "panel-size")) <= 0)
  245                 return (ENXIO);
  246         OF_getprop(node, "panel-size", &dts_value, len);
  247         panel->width = fdt32_to_cpu(dts_value[0]);
  248         panel->height = fdt32_to_cpu(dts_value[1]);
  249 
  250         /* hsync */
  251         if ((len = OF_getproplen(node, "panel-hsync")) <= 0)
  252                 return (ENXIO);
  253         OF_getprop(node, "panel-hsync", &dts_value, len);
  254         panel->h_back_porch = fdt32_to_cpu(dts_value[0]);
  255         panel->h_pulse_width = fdt32_to_cpu(dts_value[1]);
  256         panel->h_front_porch = fdt32_to_cpu(dts_value[2]);
  257 
  258         /* vsync */
  259         if ((len = OF_getproplen(node, "panel-vsync")) <= 0)
  260                 return (ENXIO);
  261         OF_getprop(node, "panel-vsync", &dts_value, len);
  262         panel->v_back_porch = fdt32_to_cpu(dts_value[0]);
  263         panel->v_pulse_width = fdt32_to_cpu(dts_value[1]);
  264         panel->v_front_porch = fdt32_to_cpu(dts_value[2]);
  265 
  266         /* clk divider */
  267         if ((len = OF_getproplen(node, "panel-clk-div")) <= 0)
  268                 return (ENXIO);
  269         OF_getprop(node, "panel-clk-div", &dts_value, len);
  270         panel->clk_div = fdt32_to_cpu(dts_value[0]);
  271 
  272         /* backlight pin */
  273         if ((len = OF_getproplen(node, "panel-backlight-pin")) <= 0)
  274                 return (ENXIO);
  275         OF_getprop(node, "panel-backlight-pin", &dts_value, len);
  276         panel->backlight_pin = fdt32_to_cpu(dts_value[0]);
  277 
  278         return (0);
  279 }
  280 
  281 static int
  282 dcu_init(struct dcu_softc *sc)
  283 {
  284         struct panel_info *panel;
  285         int reg;
  286         int i;
  287 
  288         panel = sc->panel;
  289 
  290         /* Configure DCU */
  291         reg = ((sc->sc_info.fb_height) << DELTA_Y_S);
  292         reg |= (sc->sc_info.fb_width / 16);
  293         WRITE4(sc, DCU_DISP_SIZE, reg);
  294 
  295         reg = (panel->h_back_porch << BP_H_SHIFT);
  296         reg |= (panel->h_pulse_width << PW_H_SHIFT);
  297         reg |= (panel->h_front_porch << FP_H_SHIFT);
  298         WRITE4(sc, DCU_HSYN_PARA, reg);
  299 
  300         reg = (panel->v_back_porch << BP_V_SHIFT);
  301         reg |= (panel->v_pulse_width << PW_V_SHIFT);
  302         reg |= (panel->v_front_porch << FP_V_SHIFT);
  303         WRITE4(sc, DCU_VSYN_PARA, reg);
  304 
  305         WRITE4(sc, DCU_BGND, 0);
  306         WRITE4(sc, DCU_DIV_RATIO, panel->clk_div);
  307 
  308         reg = (INV_VS | INV_HS);
  309         WRITE4(sc, DCU_SYNPOL, reg);
  310 
  311         /* TODO: export to panel info */
  312         reg = (0x3 << LS_BF_VS_SHIFT);
  313         reg |= (0x78 << OUT_BUF_HIGH_SHIFT);
  314         reg |= (0 << OUT_BUF_LOW_SHIFT);
  315         WRITE4(sc, DCU_THRESHOLD, reg);
  316 
  317         /* Mask all the interrupts */
  318         WRITE4(sc, DCU_INT_MASK, 0xffffffff);
  319 
  320         /* Reset all layers */
  321         for (i = 0; i < NUM_LAYERS; i++) {
  322                 WRITE4(sc, DCU_CTRLDESCLn_1(i), 0x0);
  323                 WRITE4(sc, DCU_CTRLDESCLn_2(i), 0x0);
  324                 WRITE4(sc, DCU_CTRLDESCLn_3(i), 0x0);
  325                 WRITE4(sc, DCU_CTRLDESCLn_4(i), 0x0);
  326                 WRITE4(sc, DCU_CTRLDESCLn_5(i), 0x0);
  327                 WRITE4(sc, DCU_CTRLDESCLn_6(i), 0x0);
  328                 WRITE4(sc, DCU_CTRLDESCLn_7(i), 0x0);
  329                 WRITE4(sc, DCU_CTRLDESCLn_8(i), 0x0);
  330                 WRITE4(sc, DCU_CTRLDESCLn_9(i), 0x0);
  331         }
  332 
  333         /* Setup first layer */
  334         reg = (sc->sc_info.fb_width | (sc->sc_info.fb_height << 16));
  335         WRITE4(sc, DCU_CTRLDESCLn_1(0), reg);
  336         WRITE4(sc, DCU_CTRLDESCLn_2(0), 0x0);
  337         WRITE4(sc, DCU_CTRLDESCLn_3(0), sc->sc_info.fb_pbase);
  338         reg = (BPP24 << BPP_SHIFT);
  339         reg |= EN_LAYER;
  340         reg |= (0xFF << TRANS_SHIFT); /* completely opaque */
  341         WRITE4(sc, DCU_CTRLDESCLn_4(0), reg);
  342         WRITE4(sc, DCU_CTRLDESCLn_5(0), 0xffffff);
  343         WRITE4(sc, DCU_CTRLDESCLn_6(0), 0x0);
  344         WRITE4(sc, DCU_CTRLDESCLn_7(0), 0x0);
  345         WRITE4(sc, DCU_CTRLDESCLn_8(0), 0x0);
  346         WRITE4(sc, DCU_CTRLDESCLn_9(0), 0x0);
  347 
  348         /* Enable DCU in normal mode */
  349         reg = READ4(sc, DCU_DCU_MODE);
  350         reg &= ~(DCU_MODE_M << DCU_MODE_S);
  351         reg |= (DCU_MODE_NORMAL << DCU_MODE_S);
  352         reg |= (RASTER_EN);
  353         WRITE4(sc, DCU_DCU_MODE, reg);
  354         WRITE4(sc, DCU_UPDATE_MODE, READREG);
  355 
  356         return (0);
  357 }
  358 
  359 static int
  360 dcu_attach(device_t dev)
  361 {
  362         struct panel_info panel;
  363         struct dcu_softc *sc;
  364         device_t gpio_dev;
  365         int err;
  366 
  367         sc = device_get_softc(dev);
  368         sc->dev = dev;
  369 
  370         if (bus_alloc_resources(dev, dcu_spec, sc->res)) {
  371                 device_printf(dev, "could not allocate resources\n");
  372                 return (ENXIO);
  373         }
  374 
  375         /* Memory interface */
  376         sc->bst = rman_get_bustag(sc->res[0]);
  377         sc->bsh = rman_get_bushandle(sc->res[0]);
  378 
  379         /* Setup interrupt handler */
  380         err = bus_setup_intr(dev, sc->res[1], INTR_TYPE_BIO | INTR_MPSAFE,
  381             NULL, dcu_intr, sc, &sc->ih);
  382         if (err) {
  383                 device_printf(dev, "Unable to alloc interrupt resource.\n");
  384                 return (ENXIO);
  385         }
  386 
  387         if (get_panel_info(sc, &panel)) {
  388                 device_printf(dev, "Can't get panel info\n");
  389                 return (ENXIO);
  390         }
  391 
  392         sc->panel = &panel;
  393 
  394         /* Bypass timing control (used for raw lcd panels) */
  395         tcon_bypass();
  396 
  397         /* Get the GPIO device, we need this to give power to USB */
  398         gpio_dev = devclass_get_device(devclass_find("gpio"), 0);
  399         if (gpio_dev == NULL) {
  400                 device_printf(sc->dev, "Error: failed to get the GPIO dev\n");
  401                 return (1);
  402         }
  403 
  404         /* Turn on backlight */
  405         /* TODO: Use FlexTimer/PWM */
  406         GPIO_PIN_SETFLAGS(gpio_dev, panel.backlight_pin, GPIO_PIN_OUTPUT);
  407         GPIO_PIN_SET(gpio_dev, panel.backlight_pin, GPIO_PIN_HIGH);
  408 
  409         sc->sc_info.fb_width = panel.width;
  410         sc->sc_info.fb_height = panel.height;
  411         sc->sc_info.fb_stride = sc->sc_info.fb_width * 3;
  412         sc->sc_info.fb_bpp = sc->sc_info.fb_depth = 24;
  413         sc->sc_info.fb_size = sc->sc_info.fb_height * sc->sc_info.fb_stride;
  414         sc->sc_info.fb_vbase = (intptr_t)contigmalloc(sc->sc_info.fb_size,
  415             M_DEVBUF, M_ZERO, 0, ~0, PAGE_SIZE, 0);
  416         sc->sc_info.fb_pbase = (intptr_t)vtophys(sc->sc_info.fb_vbase);
  417 
  418 #if 0
  419         printf("%dx%d [%d]\n", sc->sc_info.fb_width, sc->sc_info.fb_height,
  420             sc->sc_info.fb_stride);
  421         printf("pbase == 0x%08x\n", sc->sc_info.fb_pbase);
  422 #endif
  423 
  424         memset((int8_t *)sc->sc_info.fb_vbase, 0x0, sc->sc_info.fb_size);
  425 
  426         dcu_init(sc);
  427 
  428         sc->sc_info.fb_name = device_get_nameunit(dev);
  429 
  430         /* Ask newbus to attach framebuffer device to me. */
  431         sc->sc_fbd = device_add_child(dev, "fbd", device_get_unit(dev));
  432         if (sc->sc_fbd == NULL)
  433                 device_printf(dev, "Can't attach fbd device\n");
  434 
  435         if (device_probe_and_attach(sc->sc_fbd) != 0) {
  436                 device_printf(sc->dev, "Failed to attach fbd device\n");
  437         }
  438 
  439         return (0);
  440 }
  441 
  442 static struct fb_info *
  443 dcu4_fb_getinfo(device_t dev)
  444 {
  445         struct dcu_softc *sc = device_get_softc(dev);
  446 
  447         return (&sc->sc_info);
  448 }
  449 
  450 static device_method_t dcu_methods[] = {
  451         DEVMETHOD(device_probe,         dcu_probe),
  452         DEVMETHOD(device_attach,        dcu_attach),
  453 
  454         /* Framebuffer service methods */
  455         DEVMETHOD(fb_getinfo,           dcu4_fb_getinfo),
  456         { 0, 0 }
  457 };
  458 
  459 static driver_t dcu_driver = {
  460         "fb",
  461         dcu_methods,
  462         sizeof(struct dcu_softc),
  463 };
  464 
  465 static devclass_t dcu_devclass;
  466 
  467 DRIVER_MODULE(fb, simplebus, dcu_driver, dcu_devclass, 0, 0);

Cache object: 3110ca4a39059d9cc3b2d42cfa6c3e8a


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.