diff options
author | Vijay Kumar Banerjee <vijaykumar9597@gmail.com> | 2019-08-04 01:49:42 +0530 |
---|---|---|
committer | Christian Mauderer <oss@c-mauderer.de> | 2019-08-11 15:57:54 +0200 |
commit | fa976bc5aa12591f1fb4194bab3f91e02d7cace4 (patch) | |
tree | 2ab6ab3d003f082d02f6f70b57df3d2e64c2a5cd /freebsd/sys/dev/fb | |
parent | TDA19988: Port to RTEMS (diff) | |
download | rtems-libbsd-fa976bc5aa12591f1fb4194bab3f91e02d7cace4.tar.bz2 |
fbd: Import from FreeBSD
Diffstat (limited to 'freebsd/sys/dev/fb')
-rw-r--r-- | freebsd/sys/dev/fb/fb.c | 762 | ||||
-rw-r--r-- | freebsd/sys/dev/fb/fbd.c | 372 | ||||
-rw-r--r-- | freebsd/sys/dev/fb/fbreg.h | 345 |
3 files changed, 1479 insertions, 0 deletions
diff --git a/freebsd/sys/dev/fb/fb.c b/freebsd/sys/dev/fb/fb.c new file mode 100644 index 00000000..a3263c91 --- /dev/null +++ b/freebsd/sys/dev/fb/fb.c @@ -0,0 +1,762 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer as + * the first lines of this file unmodified. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <rtems/bsd/local/opt_fb.h> + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/uio.h> +#include <sys/fbio.h> +#include <sys/linker_set.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <dev/fb/fbreg.h> + +SET_DECLARE(videodriver_set, const video_driver_t); + +/* local arrays */ + +/* + * We need at least one entry each in order to initialize a video card + * for the kernel console. The arrays will be increased dynamically + * when necessary. + */ + +static int vid_malloc; +static int adapters = 1; +static video_adapter_t *adp_ini; +static video_adapter_t **adapter = &adp_ini; +static video_switch_t *vidsw_ini; + video_switch_t **vidsw = &vidsw_ini; + +#ifdef FB_INSTALL_CDEV +static struct cdevsw *vidcdevsw_ini; +static struct cdevsw **vidcdevsw = &vidcdevsw_ini; +#endif + +#define ARRAY_DELTA 4 + +static int +vid_realloc_array(void) +{ + video_adapter_t **new_adp; + video_switch_t **new_vidsw; +#ifdef FB_INSTALL_CDEV + struct cdevsw **new_cdevsw; +#endif + int newsize; + int s; + + if (!vid_malloc) + return ENOMEM; + + s = spltty(); + newsize = rounddown(adapters + ARRAY_DELTA, ARRAY_DELTA); + new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); + new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, + M_WAITOK | M_ZERO); +#ifdef FB_INSTALL_CDEV + new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, + M_WAITOK | M_ZERO); +#endif + bcopy(adapter, new_adp, sizeof(*adapter)*adapters); + bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); +#ifdef FB_INSTALL_CDEV + bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); +#endif + if (adapters > 1) { + free(adapter, M_DEVBUF); + free(vidsw, M_DEVBUF); +#ifdef FB_INSTALL_CDEV + free(vidcdevsw, M_DEVBUF); +#endif + } + adapter = new_adp; + vidsw = new_vidsw; +#ifdef FB_INSTALL_CDEV + vidcdevsw = new_cdevsw; +#endif + adapters = newsize; + splx(s); + + if (bootverbose) + printf("fb: new array size %d\n", adapters); + + return 0; +} + +static void +vid_malloc_init(void *arg) +{ + vid_malloc = TRUE; +} + +SYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); + +/* + * Low-level frame buffer driver functions + * frame buffer subdrivers, such as the VGA driver, call these functions + * to initialize the video_adapter structure and register it to the virtual + * frame buffer driver `fb'. + */ + +/* initialize the video_adapter_t structure */ +void +vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) +{ + adp->va_flags = 0; + adp->va_name = name; + adp->va_type = type; + adp->va_unit = unit; +} + +/* Register a video adapter */ +int +vid_register(video_adapter_t *adp) +{ + const video_driver_t **list; + const video_driver_t *p; + int index; + + for (index = 0; index < adapters; ++index) { + if (adapter[index] == NULL) + break; + } + if (index >= adapters) { + if (vid_realloc_array()) + return -1; + } + + adp->va_index = index; + adp->va_token = NULL; + SET_FOREACH(list, videodriver_set) { + p = *list; + if (strcmp(p->name, adp->va_name) == 0) { + adapter[index] = adp; + vidsw[index] = p->vidsw; + return index; + } + } + + return -1; +} + +int +vid_unregister(video_adapter_t *adp) +{ + if ((adp->va_index < 0) || (adp->va_index >= adapters)) + return ENOENT; + if (adapter[adp->va_index] != adp) + return ENOENT; + + adapter[adp->va_index] = NULL; + vidsw[adp->va_index] = NULL; + return 0; +} + +/* Get video I/O function table */ +video_switch_t +*vid_get_switch(char *name) +{ + const video_driver_t **list; + const video_driver_t *p; + + SET_FOREACH(list, videodriver_set) { + p = *list; + if (strcmp(p->name, name) == 0) + return p->vidsw; + } + + return NULL; +} + +/* + * Video card client functions + * Video card clients, such as the console driver `syscons' and the frame + * buffer cdev driver, use these functions to claim and release a card for + * exclusive use. + */ + +/* find the video card specified by a driver name and a unit number */ +int +vid_find_adapter(char *driver, int unit) +{ + int i; + + for (i = 0; i < adapters; ++i) { + if (adapter[i] == NULL) + continue; + if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) + continue; + if ((unit != -1) && (adapter[i]->va_unit != unit)) + continue; + return i; + } + return -1; +} + +/* allocate a video card */ +int +vid_allocate(char *driver, int unit, void *id) +{ + int index; + int s; + + s = spltty(); + index = vid_find_adapter(driver, unit); + if (index >= 0) { + if (adapter[index]->va_token) { + splx(s); + return -1; + } + adapter[index]->va_token = id; + } + splx(s); + return index; +} + +int +vid_release(video_adapter_t *adp, void *id) +{ + int error; + int s; + + s = spltty(); + if (adp->va_token == NULL) { + error = EINVAL; + } else if (adp->va_token != id) { + error = EPERM; + } else { + adp->va_token = NULL; + error = 0; + } + splx(s); + return error; +} + +/* Get a video adapter structure */ +video_adapter_t +*vid_get_adapter(int index) +{ + if ((index < 0) || (index >= adapters)) + return NULL; + return adapter[index]; +} + +/* Configure drivers: this is a backdoor for the console driver XXX */ +int +vid_configure(int flags) +{ + const video_driver_t **list; + const video_driver_t *p; + + SET_FOREACH(list, videodriver_set) { + p = *list; + if (p->configure != NULL) + (*p->configure)(flags); + } + + return 0; +} + +/* + * Virtual frame buffer cdev driver functions + * The virtual frame buffer driver dispatches driver functions to + * appropriate subdrivers. + */ + +#define FB_DRIVER_NAME "fb" + +#ifdef FB_INSTALL_CDEV + +#if 0 /* experimental */ + +static devclass_t fb_devclass; + +static int fbprobe(device_t dev); +static int fbattach(device_t dev); + +static device_method_t fb_methods[] = { + DEVMETHOD(device_probe, fbprobe), + DEVMETHOD(device_attach, fbattach), + + DEVMETHOD_END +}; + +static driver_t fb_driver = { + FB_DRIVER_NAME, + fb_methods, + 0, +}; + +static int +fbprobe(device_t dev) +{ + int unit; + + unit = device_get_unit(dev); + if (unit >= adapters) + return ENXIO; + if (adapter[unit] == NULL) + return ENXIO; + + device_set_desc(dev, "generic frame buffer"); + return 0; +} + +static int +fbattach(device_t dev) +{ + printf("fbattach: about to attach children\n"); + bus_generic_attach(dev); + return 0; +} + +#endif + +#define FB_UNIT(dev) dev2unit(dev) +#define FB_MKMINOR(unit) (u) + +#if 0 /* experimental */ +static d_open_t fbopen; +static d_close_t fbclose; +static d_read_t fbread; +static d_write_t fbwrite; +static d_ioctl_t fbioctl; +static d_mmap_t fbmmap; + + +static struct cdevsw fb_cdevsw = { + .d_version = D_VERSION, + .d_flags = D_NEEDGIANT, + .d_open = fbopen, + .d_close = fbclose, + .d_read = fbread, + .d_write = fbwrite, + .d_ioctl = fbioctl, + .d_mmap = fbmmap, + .d_name = FB_DRIVER_NAME, +}; +#endif + + +static int +fb_modevent(module_t mod, int type, void *data) +{ + + switch (type) { + case MOD_LOAD: + break; + case MOD_UNLOAD: + printf("fb module unload - not possible for this module type\n"); + return EINVAL; + default: + return EOPNOTSUPP; + } + return 0; +} + +static moduledata_t fb_mod = { + "fb", + fb_modevent, + NULL +}; + +DECLARE_MODULE(fb, fb_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); + +int +fb_attach(int unit, video_adapter_t *adp, struct cdevsw *cdevsw) +{ + int s; + + if (adp->va_index >= adapters) + return EINVAL; + if (adapter[adp->va_index] != adp) + return EINVAL; + + s = spltty(); + adp->va_minor = unit; + vidcdevsw[adp->va_index] = cdevsw; + splx(s); + + printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); + return 0; +} + +int +fb_detach(int unit, video_adapter_t *adp, struct cdevsw *cdevsw) +{ + int s; + + if (adp->va_index >= adapters) + return EINVAL; + if (adapter[adp->va_index] != adp) + return EINVAL; + if (vidcdevsw[adp->va_index] != cdevsw) + return EINVAL; + + s = spltty(); + vidcdevsw[adp->va_index] = NULL; + splx(s); + return 0; +} + +/* + * Generic frame buffer cdev driver functions + * Frame buffer subdrivers may call these functions to implement common + * driver functions. + */ + +int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, + struct thread *td) +{ + int s; + + s = spltty(); + if (!(sc->gfb_flags & FB_OPEN)) + sc->gfb_flags |= FB_OPEN; + splx(s); + return 0; +} + +int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, + struct thread *td) +{ + int s; + + s = spltty(); + sc->gfb_flags &= ~FB_OPEN; + splx(s); + return 0; +} + +int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, + int flag) +{ + int size; + int offset; + int error; + int len; + + error = 0; + size = adp->va_buffer_size/adp->va_info.vi_planes; + while (uio->uio_resid > 0) { + if (uio->uio_offset >= size) + break; + offset = uio->uio_offset%adp->va_window_size; + len = imin(uio->uio_resid, size - uio->uio_offset); + len = imin(len, adp->va_window_size - offset); + if (len <= 0) + break; + vidd_set_win_org(adp, uio->uio_offset); + error = uiomove((caddr_t)(adp->va_window + offset), len, uio); + if (error) + break; + } + return error; +} + +int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, + int flag) +{ + return ENODEV; +} + +int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, + caddr_t arg, int flag, struct thread *td) +{ + int error; + + if (adp == NULL) /* XXX */ + return ENXIO; + error = vidd_ioctl(adp, cmd, arg); + if (error == ENOIOCTL) + error = ENODEV; + return error; +} + +int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_ooffset_t offset, + vm_offset_t *paddr, int prot, vm_memattr_t *memattr) +{ + return vidd_mmap(adp, offset, paddr, prot, memattr); +} + +#endif /* FB_INSTALL_CDEV */ + +static char +*adapter_name(int type) +{ + static struct { + int type; + char *name; + } names[] = { + { KD_MONO, "MDA" }, + { KD_HERCULES, "Hercules" }, + { KD_CGA, "CGA" }, + { KD_EGA, "EGA" }, + { KD_VGA, "VGA" }, + { KD_TGA, "TGA" }, + { -1, "Unknown" }, + }; + int i; + + for (i = 0; names[i].type != -1; ++i) + if (names[i].type == type) + break; + return names[i].name; +} + +/* + * Generic low-level frame buffer functions + * The low-level functions in the frame buffer subdriver may use these + * functions. + */ + +void +fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) +{ + if (level <= 0) + return; + + printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", + FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, + adapter_name(adp->va_type), adp->va_type, adp->va_flags); + printf("%s%d: port:0x%lx-0x%lx, crtc:0x%lx, mem:0x%lx 0x%x\n", + FB_DRIVER_NAME, adp->va_index, (u_long)adp->va_io_base, + (u_long)adp->va_io_base + adp->va_io_size - 1, + (u_long)adp->va_crtc_addr, (u_long)adp->va_mem_base, + adp->va_mem_size); + printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", + FB_DRIVER_NAME, adp->va_index, + adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); + printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", + FB_DRIVER_NAME, adp->va_index, + (void *)adp->va_window, (int)adp->va_window_size/1024, + (int)adp->va_window_gran/1024, (void *)adp->va_buffer, + (int)adp->va_buffer_size/1024); +} + +void +fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, + int level) +{ + if (level <= 0) + return; + + printf("%s%d: %s, mode:%d, flags:0x%x ", + driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); + if (info->vi_flags & V_INFO_GRAPHICS) + printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", + info->vi_width, info->vi_height, + info->vi_depth, info->vi_planes, + info->vi_cwidth, info->vi_cheight); + else + printf("T %dx%d, font:%dx%d, ", + info->vi_width, info->vi_height, + info->vi_cwidth, info->vi_cheight); + printf("win:0x%lx\n", (u_long)info->vi_window); +} + +int +fb_type(int adp_type) +{ + static struct { + int fb_type; + int va_type; + } types[] = { + { FBTYPE_MDA, KD_MONO }, + { FBTYPE_HERCULES, KD_HERCULES }, + { FBTYPE_CGA, KD_CGA }, + { FBTYPE_EGA, KD_EGA }, + { FBTYPE_VGA, KD_VGA }, + { FBTYPE_TGA, KD_TGA }, + }; + int i; + + for (i = 0; i < nitems(types); ++i) { + if (types[i].va_type == adp_type) + return types[i].fb_type; + } + return -1; +} + +int +fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) +{ + int error; + int s; + + /* assert(adp != NULL) */ + + error = 0; + s = spltty(); + + switch (cmd) { + + case FBIO_ADAPTER: /* get video adapter index */ + *(int *)arg = adp->va_index; + break; + + case FBIO_ADPTYPE: /* get video adapter type */ + *(int *)arg = adp->va_type; + break; + + case FBIO_ADPINFO: /* get video adapter info */ + ((video_adapter_info_t *)arg)->va_index = adp->va_index; + ((video_adapter_info_t *)arg)->va_type = adp->va_type; + bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, + imin(strlen(adp->va_name) + 1, + sizeof(((video_adapter_info_t *)arg)->va_name))); + ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; + ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; + ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; + ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; + ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; + ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; + ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; + ((video_adapter_info_t *)arg)->va_window +#if defined(__amd64__) || defined(__i386__) + = vtophys(adp->va_window); +#else + = adp->va_window; +#endif + ((video_adapter_info_t *)arg)->va_window_size + = adp->va_window_size; + ((video_adapter_info_t *)arg)->va_window_gran + = adp->va_window_gran; + ((video_adapter_info_t *)arg)->va_window_orig + = adp->va_window_orig; + ((video_adapter_info_t *)arg)->va_unused0 +#if defined(__amd64__) || defined(__i386__) + = adp->va_buffer != 0 ? vtophys(adp->va_buffer) : 0; +#else + = adp->va_buffer; +#endif + ((video_adapter_info_t *)arg)->va_buffer_size + = adp->va_buffer_size; + ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; + ((video_adapter_info_t *)arg)->va_initial_mode + = adp->va_initial_mode; + ((video_adapter_info_t *)arg)->va_initial_bios_mode + = adp->va_initial_bios_mode; + ((video_adapter_info_t *)arg)->va_line_width + = adp->va_line_width; + ((video_adapter_info_t *)arg)->va_disp_start.x + = adp->va_disp_start.x; + ((video_adapter_info_t *)arg)->va_disp_start.y + = adp->va_disp_start.y; + break; + + case FBIO_MODEINFO: /* get mode information */ + error = vidd_get_info(adp, + ((video_info_t *)arg)->vi_mode, + (video_info_t *)arg); + if (error) + error = ENODEV; + break; + + case FBIO_FINDMODE: /* find a matching video mode */ + error = vidd_query_mode(adp, (video_info_t *)arg); + break; + + case FBIO_GETMODE: /* get video mode */ + *(int *)arg = adp->va_mode; + break; + + case FBIO_SETMODE: /* set video mode */ + error = vidd_set_mode(adp, *(int *)arg); + if (error) + error = ENODEV; /* EINVAL? */ + break; + + case FBIO_GETWINORG: /* get frame buffer window origin */ + *(u_int *)arg = adp->va_window_orig; + break; + + case FBIO_GETDISPSTART: /* get display start address */ + ((video_display_start_t *)arg)->x = adp->va_disp_start.x; + ((video_display_start_t *)arg)->y = adp->va_disp_start.y; + break; + + case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ + *(u_int *)arg = adp->va_line_width; + break; + + case FBIO_BLANK: /* blank display */ + error = vidd_blank_display(adp, *(int *)arg); + break; + + case FBIO_GETPALETTE: /* get color palette */ + case FBIO_SETPALETTE: /* set color palette */ + /* XXX */ + + case FBIOPUTCMAP: + case FBIOGETCMAP: + case FBIOPUTCMAPI: + case FBIOGETCMAPI: + /* XXX */ + + case FBIO_SETWINORG: /* set frame buffer window origin */ + case FBIO_SETDISPSTART: /* set display start address */ + case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ + + case FBIOGTYPE: + case FBIOGATTR: + case FBIOSVIDEO: + case FBIOGVIDEO: + case FBIOVERTICAL: + case FBIOSCURSOR: + case FBIOGCURSOR: + case FBIOSCURPOS: + case FBIOGCURPOS: + case FBIOGCURMAX: + case FBIOMONINFO: + case FBIOGXINFO: + + default: + error = ENODEV; + break; + } + + splx(s); + return error; +} diff --git a/freebsd/sys/dev/fb/fbd.c b/freebsd/sys/dev/fb/fbd.c new file mode 100644 index 00000000..60ce4bc3 --- /dev/null +++ b/freebsd/sys/dev/fb/fbd.c @@ -0,0 +1,372 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2013 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Aleksandr Rybalko under sponsorship from the + * FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* Generic framebuffer */ +/* TODO unlink from VT(9) */ +/* TODO done normal /dev/fb methods */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/conf.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/queue.h> +#include <sys/fbio.h> + +#include <machine/bus.h> + +#include <dev/vt/vt.h> +#include <dev/vt/hw/fb/vt_fb.h> + +#include <vm/vm.h> +#include <vm/pmap.h> + +#include <rtems/bsd/local/fb_if.h> + +LIST_HEAD(fb_list_head_t, fb_list_entry) fb_list_head = + LIST_HEAD_INITIALIZER(fb_list_head); +struct fb_list_entry { + struct fb_info *fb_info; + struct cdev *fb_si; + LIST_ENTRY(fb_list_entry) fb_list; +}; + +struct fbd_softc { + device_t sc_dev; + struct fb_info *sc_info; +}; + +static void fbd_evh_init(void *); +/* SI_ORDER_SECOND, just after EVENTHANDLERs initialized. */ +SYSINIT(fbd_evh_init, SI_SUB_CONFIGURE, SI_ORDER_SECOND, fbd_evh_init, NULL); + +static d_open_t fb_open; +static d_close_t fb_close; +static d_read_t fb_read; +static d_write_t fb_write; +static d_ioctl_t fb_ioctl; +static d_mmap_t fb_mmap; + +static struct cdevsw fb_cdevsw = { + .d_version = D_VERSION, + .d_flags = D_NEEDGIANT, + .d_open = fb_open, + .d_close = fb_close, + .d_read = fb_read, + .d_write = fb_write, + .d_ioctl = fb_ioctl, + .d_mmap = fb_mmap, + .d_name = "fb", +}; + +static int framebuffer_dev_unit = 0; + +static int +fb_open(struct cdev *dev, int oflags, int devtype, struct thread *td) +{ + + return (0); +} + +static int +fb_close(struct cdev *dev, int fflag, int devtype, struct thread *td) +{ + + return (0); +} + +static int +fb_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, + struct thread *td) +{ + struct fb_info *info; + int error; + + error = 0; + info = dev->si_drv1; + + switch (cmd) { + case FBIOGTYPE: + bcopy(info, (struct fbtype *)data, sizeof(struct fbtype)); + break; + + case FBIO_GETWINORG: /* get frame buffer window origin */ + *(u_int *)data = 0; + break; + + case FBIO_GETDISPSTART: /* get display start address */ + ((video_display_start_t *)data)->x = 0; + ((video_display_start_t *)data)->y = 0; + break; + + case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ + *(u_int *)data = info->fb_stride; + break; + + case FBIO_BLANK: /* blank display */ + if (info->setblankmode != NULL) + error = info->setblankmode(info->fb_priv, *(int *)data); + break; + + default: + error = ENOIOCTL; + break; + } + return (error); +} + +static int +fb_read(struct cdev *dev, struct uio *uio, int ioflag) +{ + + return (0); /* XXX nothing to read, yet */ +} + +static int +fb_write(struct cdev *dev, struct uio *uio, int ioflag) +{ + + return (0); /* XXX nothing written */ +} + +static int +fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot, + vm_memattr_t *memattr) +{ + struct fb_info *info; + + info = dev->si_drv1; + + if (info->fb_flags & FB_FLAG_NOMMAP) + return (ENODEV); + + if (offset >= 0 && offset < info->fb_size) { + if (info->fb_pbase == 0) + *paddr = vtophys((uint8_t *)info->fb_vbase + offset); + else + *paddr = info->fb_pbase + offset; + if (info->fb_flags & FB_FLAG_MEMATTR) + *memattr = info->fb_memattr; + return (0); + } + return (EINVAL); +} + +static int +fb_init(struct fb_list_entry *entry, int unit) +{ + struct fb_info *info; + + info = entry->fb_info; + entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL, + 0600, "fb%d", unit); + entry->fb_si->si_drv1 = info; + info->fb_cdev = entry->fb_si; + + return (0); +} + +int +fbd_list() +{ + struct fb_list_entry *entry; + + if (LIST_EMPTY(&fb_list_head)) + return (ENOENT); + + LIST_FOREACH(entry, &fb_list_head, fb_list) { + printf("FB %s @%p\n", entry->fb_info->fb_name, + (void *)entry->fb_info->fb_pbase); + } + + return (0); +} + +static struct fb_list_entry * +fbd_find(struct fb_info* info) +{ + struct fb_list_entry *entry, *tmp; + + LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) { + if (entry->fb_info == info) { + return (entry); + } + } + + return (NULL); +} + +int +fbd_register(struct fb_info* info) +{ + struct fb_list_entry *entry; + int err, first; + + first = 0; + if (LIST_EMPTY(&fb_list_head)) + first++; + + entry = fbd_find(info); + if (entry != NULL) { + /* XXX Update framebuffer params */ + return (0); + } + + entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO); + entry->fb_info = info; + + LIST_INSERT_HEAD(&fb_list_head, entry, fb_list); + + err = fb_init(entry, framebuffer_dev_unit++); + if (err) + return (err); + if (first) { + err = vt_fb_attach(info); + if (err) + return (err); + } + + return (0); +} + +int +fbd_unregister(struct fb_info* info) +{ + struct fb_list_entry *entry, *tmp; + + LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) { + if (entry->fb_info == info) { + LIST_REMOVE(entry, fb_list); + if (LIST_EMPTY(&fb_list_head)) + vt_fb_detach(info); + free(entry, M_DEVBUF); + return (0); + } + } + + return (ENOENT); +} + +static void +register_fb_wrap(void *arg, void *ptr) +{ + + fbd_register((struct fb_info *)ptr); +} + +static void +unregister_fb_wrap(void *arg, void *ptr) +{ + + fbd_unregister((struct fb_info *)ptr); +} + +static void +fbd_evh_init(void *ctx) +{ + + EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL, + EVENTHANDLER_PRI_ANY); + EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL, + EVENTHANDLER_PRI_ANY); +} + +/* Newbus methods. */ +static int +fbd_probe(device_t dev) +{ + + return (BUS_PROBE_NOWILDCARD); +} + +static int +fbd_attach(device_t dev) +{ + struct fbd_softc *sc; + int err; + + sc = device_get_softc(dev); + + sc->sc_dev = dev; + sc->sc_info = FB_GETINFO(device_get_parent(dev)); + if (sc->sc_info == NULL) + return (ENXIO); + err = fbd_register(sc->sc_info); + + return (err); +} + +static int +fbd_detach(device_t dev) +{ + struct fbd_softc *sc; + int err; + + sc = device_get_softc(dev); + + err = fbd_unregister(sc->sc_info); + + return (err); +} + +static device_method_t fbd_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, fbd_probe), + DEVMETHOD(device_attach, fbd_attach), + DEVMETHOD(device_detach, fbd_detach), + + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + { 0, 0 } +}; + +driver_t fbd_driver = { + "fbd", + fbd_methods, + sizeof(struct fbd_softc) +}; + +devclass_t fbd_devclass; + +DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0); +DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0); +DRIVER_MODULE(fbd, udl, fbd_driver, fbd_devclass, 0, 0); +MODULE_VERSION(fbd, 1); + diff --git a/freebsd/sys/dev/fb/fbreg.h b/freebsd/sys/dev/fb/fbreg.h new file mode 100644 index 00000000..d5bfd0da --- /dev/null +++ b/freebsd/sys/dev/fb/fbreg.h @@ -0,0 +1,345 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer as + * the first lines of this file unmodified. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _DEV_FB_FBREG_H_ +#define _DEV_FB_FBREG_H_ + +#ifdef _KERNEL + +#define V_MAX_ADAPTERS 8 /* XXX */ + +/* some macros */ +#if defined(__amd64__) || defined(__i386__) + +static __inline void +copyw(uint16_t *src, uint16_t *dst, size_t size) +{ + size >>= 1; + while (size--) + *dst++ = *src++; +} +#define bcopy_io(s, d, c) copyw((void*)(s), (void*)(d), (c)) +#define bcopy_toio(s, d, c) copyw((void*)(s), (void*)(d), (c)) +#define bcopy_fromio(s, d, c) copyw((void*)(s), (void*)(d), (c)) +#define bzero_io(d, c) bzero((void *)(d), (c)) +#define fill_io(p, d, c) fill((p), (void *)(d), (c)) +#define fillw_io(p, d, c) fillw((p), (void *)(d), (c)) +#elif defined(__sparc64__) +static __inline void +fillw(int val, uint16_t *buf, size_t size) +{ + while (size--) + *buf++ = val; +} +#elif defined(__powerpc__) + +#define bcopy_io(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c)) +#define bcopy_toio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c)) +#define bcopy_fromio(s, d, c) ofwfb_bcopy((void *)(s), (void *)(d), (c)) +#define bzero_io(d, c) ofwfb_bzero((void *)(d), (c)) +#define fillw(p, d, c) ofwfb_fillw((p), (void *)(d), (c)) +#define fillw_io(p, d, c) ofwfb_fillw((p), (void *)(d), (c)) +#define readw(a) ofwfb_readw((u_int16_t *)(a)) +#define writew(a, v) ofwfb_writew((u_int16_t *)(a), (v)) +void ofwfb_bcopy(const void *s, void *d, size_t c); +void ofwfb_bzero(void *d, size_t c); +void ofwfb_fillw(int pat, void *base, size_t cnt); +u_int16_t ofwfb_readw(u_int16_t *addr); +void ofwfb_writew(u_int16_t *addr, u_int16_t val); + +#elif defined(__mips__) || defined(__arm__) + +/* + * Use amd64/i386-like settings under the assumption that MIPS-based display + * drivers will have to add a level of indirection between a syscons-managed + * frame buffer and the actual video hardware. We are forced to do this + * because syscons doesn't carry around required busspace handles and tags to + * use here. This is only really a problem for true VGA devices hooked up to + * MIPS, as others will be performing a translation anyway. + */ +#define bcopy_io(s, d, c) memcpy((void *)(d), (void *)(s), (c)) +#define bcopy_toio(s, d, c) memcpy((void *)(d), (void *)(s), (c)) +#define bcopy_fromio(s, d, c) memcpy((void *)(d), (void *)(s), (c)) +#define bzero_io(d, c) memset((void *)(d), 0, (c)) +#define fill_io(p, d, c) memset((void *)(d), (p), (c)) +static __inline void +fillw(int val, uint16_t *buf, size_t size) +{ + while (size--) + *buf++ = val; +} +#define fillw_io(p, d, c) fillw((p), (void *)(d), (c)) + +#if defined(__arm__) +#define readw(a) (*(uint16_t*)(a)) +#define writew(a, v) (*(uint16_t*)(a) = (v)) +#endif + +#else /* !__i386__ && !__amd64__ && !__sparc64__ && !__powerpc__ */ +#define bcopy_io(s, d, c) memcpy_io((d), (s), (c)) +#define bcopy_toio(s, d, c) memcpy_toio((d), (void *)(s), (c)) +#define bcopy_fromio(s, d, c) memcpy_fromio((void *)(d), (s), (c)) +#define bzero_io(d, c) memset_io((d), 0, (c)) +#define fill_io(p, d, c) memset_io((d), (p), (c)) +#define fillw(p, d, c) memsetw((d), (p), (c)) +#define fillw_io(p, d, c) memsetw_io((d), (p), (c)) +#endif /* !__i386__ */ + +/* video function table */ +typedef int vi_probe_t(int unit, video_adapter_t **adpp, void *arg, int flags); +typedef int vi_init_t(int unit, video_adapter_t *adp, int flags); +typedef int vi_get_info_t(video_adapter_t *adp, int mode, video_info_t *info); +typedef int vi_query_mode_t(video_adapter_t *adp, video_info_t *info); +typedef int vi_set_mode_t(video_adapter_t *adp, int mode); +typedef int vi_save_font_t(video_adapter_t *adp, int page, int size, int width, + u_char *data, int c, int count); +typedef int vi_load_font_t(video_adapter_t *adp, int page, int size, int width, + u_char *data, int c, int count); +typedef int vi_show_font_t(video_adapter_t *adp, int page); +typedef int vi_save_palette_t(video_adapter_t *adp, u_char *palette); +typedef int vi_load_palette_t(video_adapter_t *adp, u_char *palette); +typedef int vi_set_border_t(video_adapter_t *adp, int border); +typedef int vi_save_state_t(video_adapter_t *adp, void *p, size_t size); +typedef int vi_load_state_t(video_adapter_t *adp, void *p); +typedef int vi_set_win_org_t(video_adapter_t *adp, off_t offset); +typedef int vi_read_hw_cursor_t(video_adapter_t *adp, int *col, int *row); +typedef int vi_set_hw_cursor_t(video_adapter_t *adp, int col, int row); +typedef int vi_set_hw_cursor_shape_t(video_adapter_t *adp, int base, + int height, int celsize, int blink); +typedef int vi_blank_display_t(video_adapter_t *adp, int mode); +/* defined in sys/fbio.h +#define V_DISPLAY_ON 0 +#define V_DISPLAY_BLANK 1 +#define V_DISPLAY_STAND_BY 2 +#define V_DISPLAY_SUSPEND 3 +*/ +typedef int vi_mmap_t(video_adapter_t *adp, vm_ooffset_t offset, + vm_paddr_t *paddr, int prot, vm_memattr_t *memattr); +typedef int vi_ioctl_t(video_adapter_t *adp, u_long cmd, caddr_t data); +typedef int vi_clear_t(video_adapter_t *adp); +typedef int vi_fill_rect_t(video_adapter_t *adp, int val, int x, int y, + int cx, int cy); +typedef int vi_bitblt_t(video_adapter_t *adp, ...); +typedef int vi_diag_t(video_adapter_t *adp, int level); +typedef int vi_save_cursor_palette_t(video_adapter_t *adp, u_char *palette); +typedef int vi_load_cursor_palette_t(video_adapter_t *adp, u_char *palette); +typedef int vi_copy_t(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, + int n); +typedef int vi_putp_t(video_adapter_t *adp, vm_offset_t off, u_int32_t p, + u_int32_t a, int size, int bpp, int bit_ltor, + int byte_ltor); +typedef int vi_putc_t(video_adapter_t *adp, vm_offset_t off, u_int8_t c, + u_int8_t a); +typedef int vi_puts_t(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, + int len); +typedef int vi_putm_t(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image, + u_int32_t pixel_mask, int size, int width); + +typedef struct video_switch { + vi_probe_t *probe; + vi_init_t *init; + vi_get_info_t *get_info; + vi_query_mode_t *query_mode; + vi_set_mode_t *set_mode; + vi_save_font_t *save_font; + vi_load_font_t *load_font; + vi_show_font_t *show_font; + vi_save_palette_t *save_palette; + vi_load_palette_t *load_palette; + vi_set_border_t *set_border; + vi_save_state_t *save_state; + vi_load_state_t *load_state; + vi_set_win_org_t *set_win_org; + vi_read_hw_cursor_t *read_hw_cursor; + vi_set_hw_cursor_t *set_hw_cursor; + vi_set_hw_cursor_shape_t *set_hw_cursor_shape; + vi_blank_display_t *blank_display; + vi_mmap_t *mmap; + vi_ioctl_t *ioctl; + vi_clear_t *clear; + vi_fill_rect_t *fill_rect; + vi_bitblt_t *bitblt; + int (*reserved1)(void); + int (*reserved2)(void); + vi_diag_t *diag; + vi_save_cursor_palette_t *save_cursor_palette; + vi_load_cursor_palette_t *load_cursor_palette; + vi_copy_t *copy; + vi_putp_t *putp; + vi_putc_t *putc; + vi_puts_t *puts; + vi_putm_t *putm; +} video_switch_t; + +#define vidd_probe(unit, adpp, arg, flags) \ + (*vidsw[(adp)->va_index]->probe)((unit), (adpp), (arg), (flags)) +#define vidd_init(unit, adp, flags) \ + (*vidsw[(adp)->va_index]->init)((unit), (adp), (flags)) +#define vidd_get_info(adp, mode, info) \ + (*vidsw[(adp)->va_index]->get_info)((adp), (mode), (info)) +#define vidd_query_mode(adp, mode) \ + (*vidsw[(adp)->va_index]->query_mode)((adp), (mode)) +#define vidd_set_mode(adp, mode) \ + (*vidsw[(adp)->va_index]->set_mode)((adp), (mode)) +#define vidd_save_font(adp, page, size, width, data, c, count) \ + (*vidsw[(adp)->va_index]->save_font)((adp), (page), (size), \ + (width), (data), (c), (count)) +#define vidd_load_font(adp, page, size, width, data, c, count) \ + (*vidsw[(adp)->va_index]->load_font)((adp), (page), (size), \ + (width), (data), (c), (count)) +#define vidd_show_font(adp, page) \ + (*vidsw[(adp)->va_index]->show_font)((adp), (page)) +#define vidd_save_palette(adp, pallete) \ + (*vidsw[(adp)->va_index]->save_palette)((adp), (pallete)) +#define vidd_load_palette(adp, pallete) \ + (*vidsw[(adp)->va_index]->load_palette)((adp), (pallete)) +#define vidd_set_border(adp, border) \ + (*vidsw[(adp)->va_index]->set_border)((adp), (border)) +#define vidd_save_state(adp, p, size) \ + (*vidsw[(adp)->va_index]->save_state)((adp), (p), (size)) +#define vidd_load_state(adp, p) \ + (*vidsw[(adp)->va_index]->load_state)((adp), (p)) +#define vidd_set_win_org(adp, offset) \ + (*vidsw[(adp)->va_index]->set_win_org)((adp), (offset)) +#define vidd_read_hw_cursor(adp, col, row) \ + (*vidsw[(adp)->va_index]->read_hw_cursor)((adp), (col), (row)) +#define vidd_set_hw_cursor(adp, col, row) \ + (*vidsw[(adp)->va_index]->set_hw_cursor)((adp), (col), (row)) +#define vidd_set_hw_cursor_shape(adp, base, height, celsize, blink) \ + (*vidsw[(adp)->va_index]->set_hw_cursor_shape)((adp), (base), \ + (height), (celsize), (blink)) +#define vidd_blank_display(adp, mode) \ + (*vidsw[(adp)->va_index]->blank_display)((adp), (mode)) +#define vidd_mmap(adp, offset, paddr, prot, memattr) \ + (*vidsw[(adp)->va_index]->mmap)((adp), (offset), (paddr), \ + (prot), (memattr)) +#define vidd_ioctl(adp, cmd, data) \ + (*vidsw[(adp)->va_index]->ioctl)((adp), (cmd), (data)) +#define vidd_clear(adp) \ + (*vidsw[(adp)->va_index]->clear)((adp)) +#define vidd_fill_rect(adp, val, x, y, cx, cy) \ + (*vidsw[(adp)->va_index]->fill_rect)((adp), (val), (x), (y), \ + (cx), (cy)) +#define vidd_bitblt(adp, ...) \ + (*vidsw[(adp)->va_index]->bitblt)(adp, __VA_ARGS__) +#define vidd_diag(adp, level) \ + (*vidsw[(adp)->va_index]->diag)((adp), (level)) +#define vidd_save_cursor_palette(adp, palette) \ + (*vidsw[(adp)->va_index]->save_cursor_palette)((adp), (palette)) +#define vidd_load_cursor_palette(adp, palette) \ + (*vidsw[(adp)->va_index]->load_cursor_palette)((adp), (palette)) +#define vidd_copy(adp, src, dst, n) \ + (*vidsw[(adp)->va_index]->copy)((adp), (src), (dst), (n)) +#define vidd_putp(adp, offset, p, a, size, bpp, bit_ltor1, byte_ltor2) \ + (*vidsw[(adp)->va_index]->putp)((adp), (offset), (p), (a), \ + (size), (bpp), (bit_ltor1), (bit_ltor2)) +#define vidd_putc(adp, offset, c, a) \ + (*vidsw[(adp)->va_index]->putc)((adp), (offset), (c), (a)) +#define vidd_puts(adp, offset, s, len) \ + (*vidsw[(adp)->va_index]->puts)((adp), (offset), (s), (len)) +#define vidd_putm(adp, x, y, pixel_image, pixel_mask, size, width) \ + (*vidsw[(adp)->va_index]->putm)((adp), (x), (y), (pixel_image), \ + (pixel_mask), (size), (width)) + +/* video driver */ +typedef struct video_driver { + char *name; + video_switch_t *vidsw; + int (*configure)(int); /* backdoor for the console driver */ +} video_driver_t; + +#define VIDEO_DRIVER(name, sw, config) \ + static struct video_driver name##_driver = { \ + #name, &sw, config \ + }; \ + DATA_SET(videodriver_set, name##_driver); + +/* global variables */ +extern struct video_switch **vidsw; + +/* functions for the video card driver */ +int vid_register(video_adapter_t *adp); +int vid_unregister(video_adapter_t *adp); +video_switch_t *vid_get_switch(char *name); +void vid_init_struct(video_adapter_t *adp, char *name, int type, + int unit); + +/* functions for the video card client */ +int vid_allocate(char *driver, int unit, void *id); +int vid_release(video_adapter_t *adp, void *id); +int vid_find_adapter(char *driver, int unit); +video_adapter_t *vid_get_adapter(int index); + +/* a backdoor for the console driver to tickle the video driver XXX */ +int vid_configure(int flags); +#define VIO_PROBE_ONLY (1 << 0) /* probe only, don't initialize */ + +#ifdef FB_INSTALL_CDEV + +/* virtual frame buffer driver functions */ +int fb_attach(int unit, video_adapter_t *adp, + struct cdevsw *cdevsw); +int fb_detach(int unit, video_adapter_t *adp, + struct cdevsw *cdevsw); + +/* generic frame buffer cdev driver functions */ + +typedef struct genfb_softc { + int gfb_flags; /* flag/status bits */ +#define FB_OPEN (1 << 0) +} genfb_softc_t; + +int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, + int flag, int mode, struct thread *td); +int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, + int flag, int mode, struct thread *td); +int genfbread(genfb_softc_t *sc, video_adapter_t *adp, + struct uio *uio, int flag); +int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, + struct uio *uio, int flag); +int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, + u_long cmd, caddr_t arg, int flag, struct thread *td); +int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, + vm_ooffset_t offset, vm_paddr_t *paddr, + int prot, vm_memattr_t *memattr); + +#endif /* FB_INSTALL_CDEV */ + +/* generic low-level driver functions */ + +void fb_dump_adp_info(char *driver, video_adapter_t *adp, int level); +void fb_dump_mode_info(char *driver, video_adapter_t *adp, + video_info_t *info, int level); +int fb_type(int adp_type); +int fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg); + +#endif /* _KERNEL */ + +#endif /* !_DEV_FB_FBREG_H_ */ |