fb.c revision 69781
142421Syokota/*- 242421Syokota * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 342421Syokota * All rights reserved. 442421Syokota * 542421Syokota * Redistribution and use in source and binary forms, with or without 642421Syokota * modification, are permitted provided that the following conditions 742421Syokota * are met: 842421Syokota * 1. Redistributions of source code must retain the above copyright 942421Syokota * notice, this list of conditions and the following disclaimer as 1042421Syokota * the first lines of this file unmodified. 1142421Syokota * 2. Redistributions in binary form must reproduce the above copyright 1242421Syokota * notice, this list of conditions and the following disclaimer in the 1342421Syokota * documentation and/or other materials provided with the distribution. 1442421Syokota * 3. The name of the author may not be used to endorse or promote products 1542421Syokota * derived from this software without specific prior written permission. 1642421Syokota * 1742421Syokota * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1842421Syokota * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1942421Syokota * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2042421Syokota * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 2142421Syokota * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2242421Syokota * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2342421Syokota * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2442421Syokota * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2542421Syokota * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2642421Syokota * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2742421Syokota * 2850477Speter * $FreeBSD: head/sys/dev/fb/fb.c 69781 2000-12-08 21:51:06Z dwmalone $ 2942421Syokota */ 3042421Syokota 3142421Syokota#include "opt_fb.h" 3242421Syokota 3342421Syokota#include <sys/param.h> 3442421Syokota#include <sys/systm.h> 3542421Syokota#include <sys/conf.h> 3648104Syokota#include <sys/bus.h> 3742421Syokota#include <sys/kernel.h> 3842421Syokota#include <sys/malloc.h> 3948104Syokota#include <sys/uio.h> 4048104Syokota#include <sys/fbio.h> 4142421Syokota 4248104Syokota#include <vm/vm.h> 4348104Syokota#include <vm/pmap.h> 4442421Syokota 4542421Syokota#include <dev/fb/fbreg.h> 4642421Syokota 4742421Syokota/* local arrays */ 4842421Syokota 4942421Syokota/* 5042421Syokota * We need at least one entry each in order to initialize a video card 5142421Syokota * for the kernel console. The arrays will be increased dynamically 5242421Syokota * when necessary. 5342421Syokota */ 5442564Syokota 5548104Syokotastatic int vid_malloc; 5642564Syokotastatic int adapters = 1; 5742421Syokotastatic video_adapter_t *adp_ini; 5842564Syokotastatic video_adapter_t **adapter = &adp_ini; 5942421Syokotastatic video_switch_t *vidsw_ini; 6042421Syokota video_switch_t **vidsw = &vidsw_ini; 6142421Syokota 6242564Syokota#ifdef FB_INSTALL_CDEV 6348104Syokotastatic struct cdevsw *vidcdevsw_ini; 6448104Syokotastatic struct cdevsw **vidcdevsw = &vidcdevsw_ini; 6548104Syokota#endif 6642564Syokota 6742421Syokota#define ARRAY_DELTA 4 6842421Syokota 6948104Syokotastatic int 7042421Syokotavid_realloc_array(void) 7142421Syokota{ 7242421Syokota video_adapter_t **new_adp; 7342421Syokota video_switch_t **new_vidsw; 7448104Syokota#ifdef FB_INSTALL_CDEV 7542421Syokota struct cdevsw **new_cdevsw; 7648104Syokota#endif 7742421Syokota int newsize; 7842421Syokota int s; 7942421Syokota 8048104Syokota if (!vid_malloc) 8148104Syokota return ENOMEM; 8248104Syokota 8342421Syokota s = spltty(); 8442421Syokota newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 8569781Sdwmalone new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); 8669781Sdwmalone new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, 8769781Sdwmalone M_WAITOK | M_ZERO); 8848104Syokota#ifdef FB_INSTALL_CDEV 8969781Sdwmalone new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, 9069781Sdwmalone M_WAITOK | M_ZERO); 9148104Syokota#endif 9242421Syokota bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 9342421Syokota bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 9448104Syokota#ifdef FB_INSTALL_CDEV 9542421Syokota bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 9648104Syokota#endif 9742421Syokota if (adapters > 1) { 9842421Syokota free(adapter, M_DEVBUF); 9942421Syokota free(vidsw, M_DEVBUF); 10048104Syokota#ifdef FB_INSTALL_CDEV 10142421Syokota free(vidcdevsw, M_DEVBUF); 10248104Syokota#endif 10342421Syokota } 10442421Syokota adapter = new_adp; 10542421Syokota vidsw = new_vidsw; 10648104Syokota#ifdef FB_INSTALL_CDEV 10742421Syokota vidcdevsw = new_cdevsw; 10848104Syokota#endif 10942421Syokota adapters = newsize; 11042421Syokota splx(s); 11142421Syokota 11242421Syokota if (bootverbose) 11342421Syokota printf("fb: new array size %d\n", adapters); 11448104Syokota 11548104Syokota return 0; 11642421Syokota} 11742421Syokota 11848104Syokotastatic void 11948104Syokotavid_malloc_init(void *arg) 12048104Syokota{ 12148104Syokota vid_malloc = TRUE; 12248104Syokota} 12342564Syokota 12448104SyokotaSYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 12548104Syokota 12642421Syokota/* 12742421Syokota * Low-level frame buffer driver functions 12842421Syokota * frame buffer subdrivers, such as the VGA driver, call these functions 12942421Syokota * to initialize the video_adapter structure and register it to the virtual 13042421Syokota * frame buffer driver `fb'. 13142421Syokota */ 13242421Syokota 13342421Syokota/* initialize the video_adapter_t structure */ 13442421Syokotavoid 13542421Syokotavid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 13642421Syokota{ 13742421Syokota adp->va_flags = 0; 13842421Syokota adp->va_name = name; 13942421Syokota adp->va_type = type; 14042421Syokota adp->va_unit = unit; 14142421Syokota} 14242421Syokota 14342421Syokota/* Register a video adapter */ 14442421Syokotaint 14542421Syokotavid_register(video_adapter_t *adp) 14642421Syokota{ 14748104Syokota const video_driver_t **list; 14848104Syokota const video_driver_t *p; 14942421Syokota int index; 15042421Syokota 15142421Syokota for (index = 0; index < adapters; ++index) { 15242421Syokota if (adapter[index] == NULL) 15342421Syokota break; 15442421Syokota } 15548104Syokota if (index >= adapters) { 15648104Syokota if (vid_realloc_array()) 15748104Syokota return -1; 15848104Syokota } 15942421Syokota 16042421Syokota adp->va_index = index; 16142421Syokota adp->va_token = NULL; 16248104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 16342421Syokota while ((p = *list++) != NULL) { 16442421Syokota if (strcmp(p->name, adp->va_name) == 0) { 16542421Syokota adapter[index] = adp; 16642421Syokota vidsw[index] = p->vidsw; 16742421Syokota return index; 16842421Syokota } 16942421Syokota } 17042421Syokota 17142421Syokota return -1; 17242421Syokota} 17342421Syokota 17442421Syokotaint 17542421Syokotavid_unregister(video_adapter_t *adp) 17642421Syokota{ 17742421Syokota if ((adp->va_index < 0) || (adp->va_index >= adapters)) 17842421Syokota return ENOENT; 17942421Syokota if (adapter[adp->va_index] != adp) 18042421Syokota return ENOENT; 18142421Syokota 18242421Syokota adapter[adp->va_index] = NULL; 18342421Syokota vidsw[adp->va_index] = NULL; 18442421Syokota return 0; 18542421Syokota} 18642421Syokota 18742421Syokota/* Get video I/O function table */ 18842421Syokotavideo_switch_t 18942421Syokota*vid_get_switch(char *name) 19042421Syokota{ 19148104Syokota const video_driver_t **list; 19248104Syokota const video_driver_t *p; 19342421Syokota 19448104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 19542421Syokota while ((p = *list++) != NULL) { 19642421Syokota if (strcmp(p->name, name) == 0) 19742421Syokota return p->vidsw; 19842421Syokota } 19942421Syokota 20042421Syokota return NULL; 20142421Syokota} 20242421Syokota 20342421Syokota/* 20442421Syokota * Video card client functions 20542421Syokota * Video card clients, such as the console driver `syscons' and the frame 20642421Syokota * buffer cdev driver, use these functions to claim and release a card for 20742421Syokota * exclusive use. 20842421Syokota */ 20942421Syokota 21042421Syokota/* find the video card specified by a driver name and a unit number */ 21142421Syokotaint 21242421Syokotavid_find_adapter(char *driver, int unit) 21342421Syokota{ 21442421Syokota int i; 21542421Syokota 21642421Syokota for (i = 0; i < adapters; ++i) { 21742421Syokota if (adapter[i] == NULL) 21842421Syokota continue; 21942421Syokota if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 22042421Syokota continue; 22142421Syokota if ((unit != -1) && (adapter[i]->va_unit != unit)) 22242421Syokota continue; 22342421Syokota return i; 22442421Syokota } 22542421Syokota return -1; 22642421Syokota} 22742421Syokota 22842421Syokota/* allocate a video card */ 22942421Syokotaint 23042421Syokotavid_allocate(char *driver, int unit, void *id) 23142421Syokota{ 23242421Syokota int index; 23342421Syokota int s; 23442421Syokota 23542421Syokota s = spltty(); 23642421Syokota index = vid_find_adapter(driver, unit); 23742421Syokota if (index >= 0) { 23842421Syokota if (adapter[index]->va_token) { 23942421Syokota splx(s); 24042421Syokota return -1; 24142421Syokota } 24242421Syokota adapter[index]->va_token = id; 24342421Syokota } 24442421Syokota splx(s); 24542421Syokota return index; 24642421Syokota} 24742421Syokota 24842421Syokotaint 24942421Syokotavid_release(video_adapter_t *adp, void *id) 25042421Syokota{ 25142421Syokota int error; 25242421Syokota int s; 25342421Syokota 25442421Syokota s = spltty(); 25542421Syokota if (adp->va_token == NULL) { 25642421Syokota error = EINVAL; 25742421Syokota } else if (adp->va_token != id) { 25842421Syokota error = EPERM; 25942421Syokota } else { 26042421Syokota adp->va_token = NULL; 26142421Syokota error = 0; 26242421Syokota } 26342421Syokota splx(s); 26442421Syokota return error; 26542421Syokota} 26642421Syokota 26742421Syokota/* Get a video adapter structure */ 26842421Syokotavideo_adapter_t 26942421Syokota*vid_get_adapter(int index) 27042421Syokota{ 27142421Syokota if ((index < 0) || (index >= adapters)) 27242421Syokota return NULL; 27342421Syokota return adapter[index]; 27442421Syokota} 27542421Syokota 27642421Syokota/* Configure drivers: this is a backdoor for the console driver XXX */ 27742421Syokotaint 27842421Syokotavid_configure(int flags) 27942421Syokota{ 28048104Syokota const video_driver_t **list; 28148104Syokota const video_driver_t *p; 28242421Syokota 28348104Syokota list = (const video_driver_t **)videodriver_set.ls_items; 28442421Syokota while ((p = *list++) != NULL) { 28542421Syokota if (p->configure != NULL) 28642421Syokota (*p->configure)(flags); 28742421Syokota } 28842421Syokota 28942421Syokota return 0; 29042421Syokota} 29142421Syokota 29242421Syokota/* 29342421Syokota * Virtual frame buffer cdev driver functions 29442421Syokota * The virtual frame buffer driver dispatches driver functions to 29542421Syokota * appropriate subdrivers. 29642421Syokota */ 29742421Syokota 29848104Syokota#define FB_DRIVER_NAME "fb" 29942421Syokota 30042421Syokota#ifdef FB_INSTALL_CDEV 30142421Syokota 30248104Syokota#if experimental 30348104Syokota 30448104Syokotastatic devclass_t fb_devclass; 30548104Syokota 30648104Syokotastatic int fbprobe(device_t dev); 30748104Syokotastatic int fbattach(device_t dev); 30848104Syokota 30948104Syokotastatic device_method_t fb_methods[] = { 31048104Syokota DEVMETHOD(device_probe, fbprobe), 31148104Syokota DEVMETHOD(device_attach, fbattach), 31248104Syokota 31348104Syokota DEVMETHOD(bus_print_child, bus_generic_print_child), 31448104Syokota { 0, 0 } 31548104Syokota}; 31648104Syokota 31748104Syokotastatic driver_t fb_driver = { 31848104Syokota FB_DRIVER_NAME, 31948104Syokota fb_methods, 32048104Syokota 0, 32148104Syokota}; 32248104Syokota 32348104Syokotastatic int 32448104Syokotafbprobe(device_t dev) 32548104Syokota{ 32648104Syokota int unit; 32748104Syokota 32848104Syokota unit = device_get_unit(dev); 32948104Syokota if (unit >= adapters) 33048104Syokota return ENXIO; 33148104Syokota if (adapter[unit] == NULL) 33248104Syokota return ENXIO; 33348104Syokota 33448104Syokota device_set_desc(dev, "generic frame buffer"); 33548104Syokota return 0; 33648104Syokota} 33748104Syokota 33848104Syokotastatic int 33948104Syokotafbattach(device_t dev) 34048104Syokota{ 34148104Syokota printf("fbattach: about to attach children\n"); 34248104Syokota bus_generic_attach(dev); 34348104Syokota return 0; 34448104Syokota} 34548104Syokota 34648104Syokota#endif /* experimental */ 34748104Syokota 34842421Syokota#define FB_UNIT(dev) minor(dev) 34942421Syokota#define FB_MKMINOR(unit) (u) 35042421Syokota 35142421Syokotastatic d_open_t fbopen; 35242421Syokotastatic d_close_t fbclose; 35348104Syokotastatic d_read_t fbread; 35448104Syokotastatic d_write_t fbwrite; 35542421Syokotastatic d_ioctl_t fbioctl; 35642421Syokotastatic d_mmap_t fbmmap; 35742421Syokota 35848104Syokota#define CDEV_MAJOR 123 /* XXX */ 35942421Syokota 36042421Syokotastatic struct cdevsw fb_cdevsw = { 36147625Sphk /* open */ fbopen, 36247625Sphk /* close */ fbclose, 36348104Syokota /* read */ fbread, 36448104Syokota /* write */ fbwrite, 36547625Sphk /* ioctl */ fbioctl, 36647625Sphk /* poll */ nopoll, 36747625Sphk /* mmap */ fbmmap, 36847625Sphk /* strategy */ nostrategy, 36948104Syokota /* name */ FB_DRIVER_NAME, 37047625Sphk /* maj */ CDEV_MAJOR, 37147625Sphk /* dump */ nodump, 37247625Sphk /* psize */ nopsize, 37347625Sphk /* flags */ 0, 37447625Sphk /* bmaj */ -1 37542421Syokota}; 37642421Syokota 37742421Syokotastatic void 37842421Syokotavfbattach(void *arg) 37942421Syokota{ 38042421Syokota static int fb_devsw_installed = FALSE; 38142421Syokota 38242421Syokota if (!fb_devsw_installed) { 38347640Sphk cdevsw_add(&fb_cdevsw); 38442421Syokota fb_devsw_installed = TRUE; 38542421Syokota } 38642421Syokota} 38742421Syokota 38842421SyokotaPSEUDO_SET(vfbattach, fb); 38942421Syokota 39042421Syokotaint 39148104Syokotafb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 39242421Syokota{ 39342421Syokota int s; 39442421Syokota 39542421Syokota if (adp->va_index >= adapters) 39642421Syokota return EINVAL; 39742421Syokota if (adapter[adp->va_index] != adp) 39842421Syokota return EINVAL; 39942421Syokota 40042421Syokota s = spltty(); 40142421Syokota adp->va_minor = minor(dev); 40242421Syokota vidcdevsw[adp->va_index] = cdevsw; 40342421Syokota splx(s); 40442421Syokota 40542421Syokota printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 40642421Syokota return 0; 40742421Syokota} 40842421Syokota 40942421Syokotaint 41048104Syokotafb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 41142421Syokota{ 41242421Syokota int s; 41342421Syokota 41442421Syokota if (adp->va_index >= adapters) 41542421Syokota return EINVAL; 41642421Syokota if (adapter[adp->va_index] != adp) 41742421Syokota return EINVAL; 41842421Syokota if (vidcdevsw[adp->va_index] != cdevsw) 41942421Syokota return EINVAL; 42042421Syokota 42142421Syokota s = spltty(); 42242421Syokota vidcdevsw[adp->va_index] = NULL; 42342421Syokota splx(s); 42442421Syokota return 0; 42542421Syokota} 42642421Syokota 42748104Syokotastatic int 42848104Syokotafbopen(dev_t dev, int flag, int mode, struct proc *p) 42948104Syokota{ 43048104Syokota int unit; 43148104Syokota 43248104Syokota unit = FB_UNIT(dev); 43348104Syokota if (unit >= adapters) 43448104Syokota return ENXIO; 43548104Syokota if (vidcdevsw[unit] == NULL) 43648104Syokota return ENXIO; 43748104Syokota return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 43848104Syokota flag, mode, p); 43948104Syokota} 44048104Syokota 44148104Syokotastatic int 44248104Syokotafbclose(dev_t dev, int flag, int mode, struct proc *p) 44348104Syokota{ 44448104Syokota int unit; 44548104Syokota 44648104Syokota unit = FB_UNIT(dev); 44748104Syokota if (vidcdevsw[unit] == NULL) 44848104Syokota return ENXIO; 44948104Syokota return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 45048104Syokota flag, mode, p); 45148104Syokota} 45248104Syokota 45348104Syokotastatic int 45448104Syokotafbread(dev_t dev, struct uio *uio, int flag) 45548104Syokota{ 45648104Syokota int unit; 45748104Syokota 45848104Syokota unit = FB_UNIT(dev); 45948104Syokota if (vidcdevsw[unit] == NULL) 46048104Syokota return ENXIO; 46148104Syokota return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 46248104Syokota uio, flag); 46348104Syokota} 46448104Syokota 46548104Syokotastatic int 46648104Syokotafbwrite(dev_t dev, struct uio *uio, int flag) 46748104Syokota{ 46848104Syokota int unit; 46948104Syokota 47048104Syokota unit = FB_UNIT(dev); 47148104Syokota if (vidcdevsw[unit] == NULL) 47248104Syokota return ENXIO; 47348104Syokota return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 47448104Syokota uio, flag); 47548104Syokota} 47648104Syokota 47748104Syokotastatic int 47848104Syokotafbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 47948104Syokota{ 48048104Syokota int unit; 48148104Syokota 48248104Syokota unit = FB_UNIT(dev); 48348104Syokota if (vidcdevsw[unit] == NULL) 48448104Syokota return ENXIO; 48548104Syokota return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 48648104Syokota cmd, arg, flag, p); 48748104Syokota} 48848104Syokota 48948104Syokotastatic int 49048104Syokotafbmmap(dev_t dev, vm_offset_t offset, int nprot) 49148104Syokota{ 49248104Syokota int unit; 49348104Syokota 49448104Syokota unit = FB_UNIT(dev); 49548104Syokota if (vidcdevsw[unit] == NULL) 49648104Syokota return ENXIO; 49748104Syokota return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 49848104Syokota offset, nprot); 49948104Syokota} 50048104Syokota 50148104Syokota#if experimental 50248557SphkDEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 50348104Syokota#endif 50448104Syokota 50548104Syokota/* 50648104Syokota * Generic frame buffer cdev driver functions 50748104Syokota * Frame buffer subdrivers may call these functions to implement common 50848104Syokota * driver functions. 50948104Syokota */ 51048104Syokota 51148104Syokotaint genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 51248104Syokota struct proc *p) 51348104Syokota{ 51448104Syokota int s; 51548104Syokota 51648104Syokota s = spltty(); 51748104Syokota if (!(sc->gfb_flags & FB_OPEN)) 51848104Syokota sc->gfb_flags |= FB_OPEN; 51948104Syokota splx(s); 52048104Syokota return 0; 52148104Syokota} 52248104Syokota 52348104Syokotaint genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 52448104Syokota struct proc *p) 52548104Syokota{ 52648104Syokota int s; 52748104Syokota 52848104Syokota s = spltty(); 52948104Syokota sc->gfb_flags &= ~FB_OPEN; 53048104Syokota splx(s); 53148104Syokota return 0; 53248104Syokota} 53348104Syokota 53448104Syokotaint genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 53548104Syokota int flag) 53648104Syokota{ 53748104Syokota int size; 53848104Syokota int offset; 53948104Syokota int error; 54048104Syokota int len; 54148104Syokota 54248104Syokota error = 0; 54348104Syokota size = adp->va_buffer_size/adp->va_info.vi_planes; 54448104Syokota while (uio->uio_resid > 0) { 54548104Syokota if (uio->uio_offset >= size) 54648104Syokota break; 54748104Syokota offset = uio->uio_offset%adp->va_window_size; 54848104Syokota len = imin(uio->uio_resid, size - uio->uio_offset); 54948104Syokota len = imin(len, adp->va_window_size - offset); 55048104Syokota if (len <= 0) 55148104Syokota break; 55248104Syokota (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 55348104Syokota error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 55448104Syokota if (error) 55548104Syokota break; 55648104Syokota } 55748104Syokota return error; 55848104Syokota} 55948104Syokota 56048104Syokotaint genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 56148104Syokota int flag) 56248104Syokota{ 56348104Syokota return ENODEV; 56448104Syokota} 56548104Syokota 56648104Syokotaint genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 56748104Syokota caddr_t arg, int flag, struct proc *p) 56848104Syokota{ 56948104Syokota int error; 57048104Syokota 57148104Syokota if (adp == NULL) /* XXX */ 57248104Syokota return ENXIO; 57348104Syokota error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 57448104Syokota if (error == ENOIOCTL) 57548104Syokota error = ENODEV; 57648104Syokota return error; 57748104Syokota} 57848104Syokota 57948104Syokotaint genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 58048104Syokota int prot) 58148104Syokota{ 58248104Syokota return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 58348104Syokota} 58448104Syokota 58542421Syokota#endif /* FB_INSTALL_CDEV */ 58642421Syokota 58742421Syokotastatic char 58842421Syokota*adapter_name(int type) 58942421Syokota{ 59042421Syokota static struct { 59142421Syokota int type; 59242421Syokota char *name; 59342421Syokota } names[] = { 59442421Syokota { KD_MONO, "MDA" }, 59542421Syokota { KD_HERCULES, "Hercules" }, 59642421Syokota { KD_CGA, "CGA" }, 59742421Syokota { KD_EGA, "EGA" }, 59842421Syokota { KD_VGA, "VGA" }, 59942421Syokota { KD_PC98, "PC-98x1" }, 60048104Syokota { KD_TGA, "TGA" }, 60142421Syokota { -1, "Unknown" }, 60242421Syokota }; 60342421Syokota int i; 60442421Syokota 60542421Syokota for (i = 0; names[i].type != -1; ++i) 60642421Syokota if (names[i].type == type) 60742421Syokota break; 60842421Syokota return names[i].name; 60942421Syokota} 61042421Syokota 61148104Syokota/* 61248104Syokota * Generic low-level frame buffer functions 61348104Syokota * The low-level functions in the frame buffer subdriver may use these 61448104Syokota * functions. 61548104Syokota */ 61648104Syokota 61742421Syokotavoid 61842421Syokotafb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 61942421Syokota{ 62042421Syokota if (level <= 0) 62142421Syokota return; 62242421Syokota 62342421Syokota printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 62448104Syokota FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 62542421Syokota adapter_name(adp->va_type), adp->va_type, adp->va_flags); 62642421Syokota printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 62748104Syokota FB_DRIVER_NAME, adp->va_index, 62842421Syokota adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 62942421Syokota adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 63042421Syokota printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 63148104Syokota FB_DRIVER_NAME, adp->va_index, 63242421Syokota adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 63348104Syokota printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 63448104Syokota FB_DRIVER_NAME, adp->va_index, 63548104Syokota (void *)adp->va_window, (int)adp->va_window_size/1024, 63648104Syokota (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 63742831Syokota (int)adp->va_buffer_size/1024); 63842421Syokota} 63942421Syokota 64042421Syokotavoid 64142421Syokotafb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 64242421Syokota int level) 64342421Syokota{ 64442421Syokota if (level <= 0) 64542421Syokota return; 64642421Syokota 64742421Syokota printf("%s%d: %s, mode:%d, flags:0x%x ", 64842421Syokota driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 64942421Syokota if (info->vi_flags & V_INFO_GRAPHICS) 65042421Syokota printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 65142421Syokota info->vi_width, info->vi_height, 65242421Syokota info->vi_depth, info->vi_planes, 65342421Syokota info->vi_cwidth, info->vi_cheight); 65442421Syokota else 65542421Syokota printf("T %dx%d, font:%dx%d, ", 65642421Syokota info->vi_width, info->vi_height, 65742421Syokota info->vi_cwidth, info->vi_cheight); 65842421Syokota printf("win:0x%x\n", info->vi_window); 65942421Syokota} 66048104Syokota 66148104Syokotaint 66248104Syokotafb_type(int adp_type) 66348104Syokota{ 66448104Syokota static struct { 66548104Syokota int fb_type; 66648104Syokota int va_type; 66748104Syokota } types[] = { 66848104Syokota { FBTYPE_MDA, KD_MONO }, 66948104Syokota { FBTYPE_HERCULES, KD_HERCULES }, 67048104Syokota { FBTYPE_CGA, KD_CGA }, 67148104Syokota { FBTYPE_EGA, KD_EGA }, 67248104Syokota { FBTYPE_VGA, KD_VGA }, 67348104Syokota { FBTYPE_PC98, KD_PC98 }, 67448104Syokota { FBTYPE_TGA, KD_TGA }, 67548104Syokota }; 67648104Syokota int i; 67748104Syokota 67848104Syokota for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 67948104Syokota if (types[i].va_type == adp_type) 68048104Syokota return types[i].fb_type; 68148104Syokota } 68248104Syokota return -1; 68348104Syokota} 68448104Syokota 68548104Syokotaint 68648104Syokotafb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 68748104Syokota{ 68848104Syokota int error; 68948104Syokota int s; 69048104Syokota 69148104Syokota /* assert(adp != NULL) */ 69248104Syokota 69348104Syokota error = 0; 69448104Syokota s = spltty(); 69548104Syokota 69648104Syokota switch (cmd) { 69748104Syokota 69848104Syokota case FBIO_ADAPTER: /* get video adapter index */ 69948104Syokota *(int *)arg = adp->va_index; 70048104Syokota break; 70148104Syokota 70248104Syokota case FBIO_ADPTYPE: /* get video adapter type */ 70348104Syokota *(int *)arg = adp->va_type; 70448104Syokota break; 70548104Syokota 70648104Syokota case FBIO_ADPINFO: /* get video adapter info */ 70748104Syokota ((video_adapter_info_t *)arg)->va_index = adp->va_index; 70848104Syokota ((video_adapter_info_t *)arg)->va_type = adp->va_type; 70948104Syokota bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 71048104Syokota imin(strlen(adp->va_name) + 1, 71148104Syokota sizeof(((video_adapter_info_t *)arg)->va_name))); 71248104Syokota ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 71348104Syokota ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 71448104Syokota ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 71548104Syokota ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 71648104Syokota ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 71748104Syokota ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 71848104Syokota ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 71948104Syokota ((video_adapter_info_t *)arg)->va_window 72060742Sgallatin#ifdef __i386__ 72148104Syokota = vtophys(adp->va_window); 72260742Sgallatin#else 72360742Sgallatin = adp->va_window; 72460742Sgallatin#endif 72548104Syokota ((video_adapter_info_t *)arg)->va_window_size 72648104Syokota = adp->va_window_size; 72748104Syokota ((video_adapter_info_t *)arg)->va_window_gran 72848104Syokota = adp->va_window_gran; 72948104Syokota ((video_adapter_info_t *)arg)->va_window_orig 73048104Syokota = adp->va_window_orig; 73148104Syokota ((video_adapter_info_t *)arg)->va_unused0 73260742Sgallatin#ifdef __i386__ 73348104Syokota = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 73460742Sgallatin#else 73560742Sgallatin = adp->va_buffer; 73660742Sgallatin#endif 73748104Syokota ((video_adapter_info_t *)arg)->va_buffer_size 73848104Syokota = adp->va_buffer_size; 73948104Syokota ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 74048104Syokota ((video_adapter_info_t *)arg)->va_initial_mode 74148104Syokota = adp->va_initial_mode; 74248104Syokota ((video_adapter_info_t *)arg)->va_initial_bios_mode 74348104Syokota = adp->va_initial_bios_mode; 74448104Syokota ((video_adapter_info_t *)arg)->va_line_width 74548104Syokota = adp->va_line_width; 74648104Syokota ((video_adapter_info_t *)arg)->va_disp_start.x 74748104Syokota = adp->va_disp_start.x; 74848104Syokota ((video_adapter_info_t *)arg)->va_disp_start.y 74948104Syokota = adp->va_disp_start.y; 75048104Syokota break; 75148104Syokota 75248104Syokota case FBIO_MODEINFO: /* get mode information */ 75348104Syokota error = (*vidsw[adp->va_index]->get_info)(adp, 75448104Syokota ((video_info_t *)arg)->vi_mode, 75548104Syokota (video_info_t *)arg); 75648104Syokota if (error) 75748104Syokota error = ENODEV; 75848104Syokota break; 75948104Syokota 76048104Syokota case FBIO_FINDMODE: /* find a matching video mode */ 76148104Syokota error = (*vidsw[adp->va_index]->query_mode)(adp, 76248104Syokota (video_info_t *)arg); 76348104Syokota break; 76448104Syokota 76548104Syokota case FBIO_GETMODE: /* get video mode */ 76648104Syokota *(int *)arg = adp->va_mode; 76748104Syokota break; 76848104Syokota 76948104Syokota case FBIO_SETMODE: /* set video mode */ 77048104Syokota error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 77148104Syokota if (error) 77248104Syokota error = ENODEV; /* EINVAL? */ 77348104Syokota break; 77448104Syokota 77548104Syokota case FBIO_GETWINORG: /* get frame buffer window origin */ 77648104Syokota *(u_int *)arg = adp->va_window_orig; 77748104Syokota break; 77848104Syokota 77948104Syokota case FBIO_GETDISPSTART: /* get display start address */ 78048104Syokota ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 78148104Syokota ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 78248104Syokota break; 78348104Syokota 78448104Syokota case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 78548104Syokota *(u_int *)arg = adp->va_line_width; 78648104Syokota break; 78748104Syokota 78848104Syokota case FBIO_GETPALETTE: /* get color palette */ 78948104Syokota case FBIO_SETPALETTE: /* set color palette */ 79048104Syokota /* XXX */ 79148104Syokota 79248104Syokota case FBIOPUTCMAP: 79348104Syokota case FBIOGETCMAP: 79448104Syokota /* XXX */ 79548104Syokota 79648104Syokota case FBIO_SETWINORG: /* set frame buffer window origin */ 79748104Syokota case FBIO_SETDISPSTART: /* set display start address */ 79848104Syokota case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 79948104Syokota 80048104Syokota case FBIOGTYPE: 80148104Syokota case FBIOGATTR: 80248104Syokota case FBIOSVIDEO: 80348104Syokota case FBIOGVIDEO: 80448104Syokota case FBIOSCURSOR: 80548104Syokota case FBIOGCURSOR: 80648104Syokota case FBIOSCURPOS: 80748104Syokota case FBIOGCURPOS: 80848104Syokota case FBIOGCURMAX: 80948104Syokota 81048104Syokota default: 81148104Syokota error = ENODEV; 81248104Syokota break; 81348104Syokota } 81448104Syokota 81548104Syokota splx(s); 81648104Syokota return error; 81748104Syokota} 818